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kernel: init kernel 5.4 support

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CN_SZTL 2020-04-14 00:08:05 +08:00
parent 387c09fb6f
commit 9cbd449674
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203 changed files with 38526 additions and 0 deletions
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2
include/kernel-version.mk
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@ -9,10 +9,12 @@ endif
LINUX_VERSION-4.9 = .218
LINUX_VERSION-4.14 = .175
LINUX_VERSION-4.19 = .114
LINUX_VERSION-5.4 = .31
LINUX_KERNEL_HASH-4.9.218 = df3a6e615ec4c57b04775e9c018c67045223ac662e696d28fd37baa5114349cd
LINUX_KERNEL_HASH-4.14.175 = cb440ac5d20071dcb482e5062958514064b0c5a8375c92653062ea201ae0222c
LINUX_KERNEL_HASH-4.19.114 = 1e40a0dc6afc95a259f97b80d5f5ef8f89e2ee49e993ba6844e2bc55de361f0e
LINUX_KERNEL_HASH-5.4.31 = a11083f8f809887f6a0f8d4467532385b99418f17998fe6e837807491c276eeb
remove_uri_prefix=$(subst git://,,$(subst http://,,$(subst https://,,$(1))))
sanitize_uri=$(call qstrip,$(subst @,_,$(subst :,_,$(subst .,_,$(subst -,_,$(subst /,_,$(1)))))))

30
target/linux/generic/backport-5.4/010-Kbuild-don-t-hardcode-path-to-awk-in-scripts-ld-vers.patch Normal file
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@ -0,0 +1,30 @@
From 13b1ecc3401653a355798eb1dee10cc1608202f4 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 18 Jan 2016 12:27:49 +0100
Subject: [PATCH 33/34] Kbuild: don't hardcode path to awk in
scripts/ld-version.sh
On some systems /usr/bin/awk does not exist, or is broken. Find it via
$PATH instead.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
scripts/ld-version.sh | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -1,6 +1,7 @@
-#!/usr/bin/awk -f
+#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# extract linker version number from stdin and turn into single number
+exec awk '
{
gsub(".*\\)", "");
gsub(".*version ", "");
@@ -9,3 +10,4 @@
print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
exit
}
+'

24
target/linux/generic/backport-5.4/011-kbuild-export-SUBARCH.patch Normal file
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@ -0,0 +1,24 @@
From 173019b66dcc9d68ad9333aa744dad1e369b5aa8 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 9 Jul 2017 00:26:53 +0200
Subject: [PATCH 34/34] kernel: add compile fix for linux 4.9 on x86
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/Makefile
+++ b/Makefile
@@ -471,8 +471,9 @@ KBUILD_LDFLAGS :=
GCC_PLUGINS_CFLAGS :=
CLANG_FLAGS :=
-export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE PAHOLE LEX YACC AWK INSTALLKERNEL
+export ARCH SRCARCH SUBARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD
+export CC CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE PAHOLE LEX YACC AWK INSTALLKERNEL
+
export PERL PYTHON PYTHON2 PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE

558
target/linux/generic/backport-5.4/020-backport_netfilter_rtcache.patch Normal file
View File

@ -0,0 +1,558 @@
From 1bb0c3ec899827cfa4668bb63a08713a40744d21 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Sun, 9 Jul 2017 08:58:30 +0200
Subject: [PATCH] netfilter: conntrack: cache route for forwarded connections
... to avoid per-packet FIB lookup if possible.
The cached dst is re-used provided the input interface
is the same as that of the previous packet in the same direction.
If not, the cached dst is invalidated.
For ipv6 we also need to store sernum, else dst_check doesn't work,
pointed out by Eric Dumazet.
This should speed up forwarding when conntrack is already in use
anyway, especially when using reverse path filtering -- active RPF
enforces two FIB lookups for each packet.
Before the routing cache removal this didn't matter since RPF was performed
only when route cache didn't yield a result; but without route cache it
comes at higher price.
Julian Anastasov suggested to add NETDEV_UNREGISTER handler to
avoid holding on to dsts of 'frozen' conntracks.
Signed-off-by: Florian Westphal <fw@strlen.de>
---
include/net/netfilter/nf_conntrack_extend.h | 4 +
include/net/netfilter/nf_conntrack_rtcache.h | 34 +++
net/netfilter/Kconfig | 12 +
net/netfilter/Makefile | 3 +
net/netfilter/nf_conntrack_rtcache.c | 428 +++++++++++++++++++++++++++
5 files changed, 481 insertions(+)
create mode 100644 include/net/netfilter/nf_conntrack_rtcache.h
create mode 100644 net/netfilter/nf_conntrack_rtcache.c
--- a/include/net/netfilter/nf_conntrack_extend.h
+++ b/include/net/netfilter/nf_conntrack_extend.h
@@ -28,6 +28,9 @@ enum nf_ct_ext_id {
#if IS_ENABLED(CONFIG_NETFILTER_SYNPROXY)
NF_CT_EXT_SYNPROXY,
#endif
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_RTCACHE)
+ NF_CT_EXT_RTCACHE,
+#endif
NF_CT_EXT_NUM,
};
@@ -40,6 +43,7 @@ enum nf_ct_ext_id {
#define NF_CT_EXT_TIMEOUT_TYPE struct nf_conn_timeout
#define NF_CT_EXT_LABELS_TYPE struct nf_conn_labels
#define NF_CT_EXT_SYNPROXY_TYPE struct nf_conn_synproxy
+#define NF_CT_EXT_RTCACHE_TYPE struct nf_conn_rtcache
/* Extensions: optional stuff which isn't permanently in struct. */
struct nf_ct_ext {
--- /dev/null
+++ b/include/net/netfilter/nf_conntrack_rtcache.h
@@ -0,0 +1,34 @@
+#include <linux/gfp.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_extend.h>
+
+struct dst_entry;
+
+struct nf_conn_dst_cache {
+ struct dst_entry *dst;
+ int iif;
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6)
+ u32 cookie;
+#endif
+
+};
+
+struct nf_conn_rtcache {
+ struct nf_conn_dst_cache cached_dst[IP_CT_DIR_MAX];
+};
+
+static inline
+struct nf_conn_rtcache *nf_ct_rtcache_find(const struct nf_conn *ct)
+{
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_RTCACHE)
+ return nf_ct_ext_find(ct, NF_CT_EXT_RTCACHE);
+#else
+ return NULL;
+#endif
+}
+
+static inline int nf_conn_rtcache_iif_get(const struct nf_conn_rtcache *rtc,
+ enum ip_conntrack_dir dir)
+{
+ return rtc->cached_dst[dir].iif;
+}
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -136,6 +136,18 @@ config NF_CONNTRACK_EVENTS
If unsure, say `N'.
+config NF_CONNTRACK_RTCACHE
+ tristate "Cache route entries in conntrack objects"
+ depends on NETFILTER_ADVANCED
+ depends on NF_CONNTRACK
+ help
+ If this option is enabled, the connection tracking code will
+ cache routing information for each connection that is being
+ forwarded, at a cost of 32 bytes per conntrack object.
+
+ To compile it as a module, choose M here. If unsure, say N.
+ The module will be called nf_conntrack_rtcache.
+
config NF_CONNTRACK_TIMEOUT
bool 'Connection tracking timeout'
depends on NETFILTER_ADVANCED
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -26,6 +26,9 @@ obj-$(CONFIG_NETFILTER_NETLINK_OSF) += n
# connection tracking
obj-$(CONFIG_NF_CONNTRACK) += nf_conntrack.o
+# optional conntrack route cache extension
+obj-$(CONFIG_NF_CONNTRACK_RTCACHE) += nf_conntrack_rtcache.o
+
# netlink interface for nf_conntrack
obj-$(CONFIG_NF_CT_NETLINK) += nf_conntrack_netlink.o
obj-$(CONFIG_NF_CT_NETLINK_TIMEOUT) += nfnetlink_cttimeout.o
--- /dev/null
+++ b/net/netfilter/nf_conntrack_rtcache.c
@@ -0,0 +1,428 @@
+/* route cache for netfilter.
+ *
+ * (C) 2014 Red Hat GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/types.h>
+#include <linux/netfilter.h>
+#include <linux/skbuff.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/export.h>
+#include <linux/module.h>
+
+#include <net/dst.h>
+
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_core.h>
+#include <net/netfilter/nf_conntrack_extend.h>
+#include <net/netfilter/nf_conntrack_rtcache.h>
+
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6)
+#include <net/ip6_fib.h>
+#endif
+
+static void __nf_conn_rtcache_destroy(struct nf_conn_rtcache *rtc,
+ enum ip_conntrack_dir dir)
+{
+ struct dst_entry *dst = rtc->cached_dst[dir].dst;
+
+ dst_release(dst);
+}
+
+static void nf_conn_rtcache_destroy(struct nf_conn *ct)
+{
+ struct nf_conn_rtcache *rtc = nf_ct_rtcache_find(ct);
+
+ if (!rtc)
+ return;
+
+ __nf_conn_rtcache_destroy(rtc, IP_CT_DIR_ORIGINAL);
+ __nf_conn_rtcache_destroy(rtc, IP_CT_DIR_REPLY);
+}
+
+static void nf_ct_rtcache_ext_add(struct nf_conn *ct)
+{
+ struct nf_conn_rtcache *rtc;
+
+ rtc = nf_ct_ext_add(ct, NF_CT_EXT_RTCACHE, GFP_ATOMIC);
+ if (rtc) {
+ rtc->cached_dst[IP_CT_DIR_ORIGINAL].iif = -1;
+ rtc->cached_dst[IP_CT_DIR_ORIGINAL].dst = NULL;
+ rtc->cached_dst[IP_CT_DIR_REPLY].iif = -1;
+ rtc->cached_dst[IP_CT_DIR_REPLY].dst = NULL;
+ }
+}
+
+static struct nf_conn_rtcache *nf_ct_rtcache_find_usable(struct nf_conn *ct)
+{
+ return nf_ct_rtcache_find(ct);
+}
+
+static struct dst_entry *
+nf_conn_rtcache_dst_get(const struct nf_conn_rtcache *rtc,
+ enum ip_conntrack_dir dir)
+{
+ return rtc->cached_dst[dir].dst;
+}
+
+static u32 nf_rtcache_get_cookie(int pf, const struct dst_entry *dst)
+{
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6)
+ if (pf == NFPROTO_IPV6) {
+ const struct rt6_info *rt = (const struct rt6_info *)dst;
+
+ if (rt->from && rt->from->fib6_node)
+ return (u32)rt->from->fib6_node->fn_sernum;
+ }
+#endif
+ return 0;
+}
+
+static void nf_conn_rtcache_dst_set(int pf,
+ struct nf_conn_rtcache *rtc,
+ struct dst_entry *dst,
+ enum ip_conntrack_dir dir, int iif)
+{
+ if (rtc->cached_dst[dir].iif != iif)
+ rtc->cached_dst[dir].iif = iif;
+
+ if (rtc->cached_dst[dir].dst != dst) {
+ struct dst_entry *old;
+
+ dst_hold(dst);
+
+ old = xchg(&rtc->cached_dst[dir].dst, dst);
+ dst_release(old);
+
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6)
+ if (pf == NFPROTO_IPV6)
+ rtc->cached_dst[dir].cookie =
+ nf_rtcache_get_cookie(pf, dst);
+#endif
+ }
+}
+
+static void nf_conn_rtcache_dst_obsolete(struct nf_conn_rtcache *rtc,
+ enum ip_conntrack_dir dir)
+{
+ struct dst_entry *old;
+
+ pr_debug("Invalidate iif %d for dir %d on cache %p\n",
+ rtc->cached_dst[dir].iif, dir, rtc);
+
+ old = xchg(&rtc->cached_dst[dir].dst, NULL);
+ dst_release(old);
+ rtc->cached_dst[dir].iif = -1;
+}
+
+static unsigned int nf_rtcache_in(u_int8_t pf,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ struct nf_conn_rtcache *rtc;
+ enum ip_conntrack_info ctinfo;
+ enum ip_conntrack_dir dir;
+ struct dst_entry *dst;
+ struct nf_conn *ct;
+ int iif;
+ u32 cookie;
+
+ if (skb_dst(skb) || skb->sk)
+ return NF_ACCEPT;
+
+ ct = nf_ct_get(skb, &ctinfo);
+ if (!ct)
+ return NF_ACCEPT;
+
+ rtc = nf_ct_rtcache_find_usable(ct);
+ if (!rtc)
+ return NF_ACCEPT;
+
+ /* if iif changes, don't use cache and let ip stack
+ * do route lookup.
+ *
+ * If rp_filter is enabled it might toss skb, so
+ * we don't want to avoid these checks.
+ */
+ dir = CTINFO2DIR(ctinfo);
+ iif = nf_conn_rtcache_iif_get(rtc, dir);
+ if (state->in->ifindex != iif) {
+ pr_debug("ct %p, iif %d, cached iif %d, skip cached entry\n",
+ ct, iif, state->in->ifindex);
+ return NF_ACCEPT;
+ }
+ dst = nf_conn_rtcache_dst_get(rtc, dir);
+ if (dst == NULL)
+ return NF_ACCEPT;
+
+ cookie = nf_rtcache_get_cookie(pf, dst);
+
+ dst = dst_check(dst, cookie);
+ pr_debug("obtained dst %p for skb %p, cookie %d\n", dst, skb, cookie);
+ if (likely(dst))
+ skb_dst_set_noref(skb, dst);
+ else
+ nf_conn_rtcache_dst_obsolete(rtc, dir);
+
+ return NF_ACCEPT;
+}
+
+static unsigned int nf_rtcache_forward(u_int8_t pf,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ struct nf_conn_rtcache *rtc;
+ enum ip_conntrack_info ctinfo;
+ enum ip_conntrack_dir dir;
+ struct nf_conn *ct;
+ struct dst_entry *dst = skb_dst(skb);
+ int iif;
+
+ ct = nf_ct_get(skb, &ctinfo);
+ if (!ct)
+ return NF_ACCEPT;
+
+ if (dst && dst_xfrm(dst))
+ return NF_ACCEPT;
+
+ if (!nf_ct_is_confirmed(ct)) {
+ if (WARN_ON(nf_ct_rtcache_find(ct)))
+ return NF_ACCEPT;
+ nf_ct_rtcache_ext_add(ct);
+ return NF_ACCEPT;
+ }
+
+ rtc = nf_ct_rtcache_find_usable(ct);
+ if (!rtc)
+ return NF_ACCEPT;
+
+ dir = CTINFO2DIR(ctinfo);
+ iif = nf_conn_rtcache_iif_get(rtc, dir);
+ pr_debug("ct %p, skb %p, dir %d, iif %d, cached iif %d\n",
+ ct, skb, dir, iif, state->in->ifindex);
+ if (likely(state->in->ifindex == iif))
+ return NF_ACCEPT;
+
+ nf_conn_rtcache_dst_set(pf, rtc, skb_dst(skb), dir, state->in->ifindex);
+ return NF_ACCEPT;
+}
+
+static unsigned int nf_rtcache_in4(void *priv,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ return nf_rtcache_in(NFPROTO_IPV4, skb, state);
+}
+
+static unsigned int nf_rtcache_forward4(void *priv,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ return nf_rtcache_forward(NFPROTO_IPV4, skb, state);
+}
+
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6)
+static unsigned int nf_rtcache_in6(void *priv,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ return nf_rtcache_in(NFPROTO_IPV6, skb, state);
+}
+
+static unsigned int nf_rtcache_forward6(void *priv,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ return nf_rtcache_forward(NFPROTO_IPV6, skb, state);
+}
+#endif
+
+static int nf_rtcache_dst_remove(struct nf_conn *ct, void *data)
+{
+ struct nf_conn_rtcache *rtc = nf_ct_rtcache_find(ct);
+ struct net_device *dev = data;
+
+ if (!rtc)
+ return 0;
+
+ if (dev->ifindex == rtc->cached_dst[IP_CT_DIR_ORIGINAL].iif ||
+ dev->ifindex == rtc->cached_dst[IP_CT_DIR_REPLY].iif) {
+ nf_conn_rtcache_dst_obsolete(rtc, IP_CT_DIR_ORIGINAL);
+ nf_conn_rtcache_dst_obsolete(rtc, IP_CT_DIR_REPLY);
+ }
+
+ return 0;
+}
+
+static int nf_rtcache_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ struct net *net = dev_net(dev);
+
+ if (event == NETDEV_DOWN)
+ nf_ct_iterate_cleanup_net(net, nf_rtcache_dst_remove, dev, 0, 0);
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block nf_rtcache_notifier = {
+ .notifier_call = nf_rtcache_netdev_event,
+};
+
+static struct nf_hook_ops rtcache_ops[] = {
+ {
+ .hook = nf_rtcache_in4,
+ .pf = NFPROTO_IPV4,
+ .hooknum = NF_INET_PRE_ROUTING,
+ .priority = NF_IP_PRI_LAST,
+ },
+ {
+ .hook = nf_rtcache_forward4,
+ .pf = NFPROTO_IPV4,
+ .hooknum = NF_INET_FORWARD,
+ .priority = NF_IP_PRI_LAST,
+ },
+#if IS_ENABLED(CONFIG_NF_CONNTRACK_IPV6)
+ {
+ .hook = nf_rtcache_in6,
+ .pf = NFPROTO_IPV6,
+ .hooknum = NF_INET_PRE_ROUTING,
+ .priority = NF_IP_PRI_LAST,
+ },
+ {
+ .hook = nf_rtcache_forward6,
+ .pf = NFPROTO_IPV6,
+ .hooknum = NF_INET_FORWARD,
+ .priority = NF_IP_PRI_LAST,
+ },
+#endif
+};
+
+static struct nf_ct_ext_type rtcache_extend __read_mostly = {
+ .len = sizeof(struct nf_conn_rtcache),
+ .align = __alignof__(struct nf_conn_rtcache),
+ .id = NF_CT_EXT_RTCACHE,
+ .destroy = nf_conn_rtcache_destroy,
+};
+
+static int __net_init rtcache_net_init(struct net *net)
+{
+ return nf_register_net_hooks(net, rtcache_ops, ARRAY_SIZE(rtcache_ops));
+}
+
+static void __net_exit rtcache_net_exit(struct net *net)
+{
+ /* remove hooks so no new connections get rtcache extension */
+ nf_unregister_net_hooks(net, rtcache_ops, ARRAY_SIZE(rtcache_ops));
+}
+
+static struct pernet_operations rtcache_ops_net_ops = {
+ .init = rtcache_net_init,
+ .exit = rtcache_net_exit,
+};
+
+static int __init nf_conntrack_rtcache_init(void)
+{
+ int ret = nf_ct_extend_register(&rtcache_extend);
+
+ if (ret < 0) {
+ pr_err("nf_conntrack_rtcache: Unable to register extension\n");
+ return ret;
+ }
+
+ ret = register_pernet_subsys(&rtcache_ops_net_ops);
+ if (ret) {
+ nf_ct_extend_unregister(&rtcache_extend);
+ return ret;
+ }
+
+ ret = register_netdevice_notifier(&nf_rtcache_notifier);
+ if (ret) {
+ nf_ct_extend_unregister(&rtcache_extend);
+ unregister_pernet_subsys(&rtcache_ops_net_ops);
+ }
+
+ return ret;
+}
+
+static int nf_rtcache_ext_remove(struct nf_conn *ct, void *data)
+{
+ struct nf_conn_rtcache *rtc = nf_ct_rtcache_find(ct);
+
+ return rtc != NULL;
+}
+
+static bool __exit nf_conntrack_rtcache_wait_for_dying(struct net *net)
+{
+ bool wait = false;
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ struct nf_conntrack_tuple_hash *h;
+ struct hlist_nulls_node *n;
+ struct nf_conn *ct;
+ struct ct_pcpu *pcpu = per_cpu_ptr(net->ct.pcpu_lists, cpu);
+
+ rcu_read_lock();
+ spin_lock_bh(&pcpu->lock);
+
+ hlist_nulls_for_each_entry(h, n, &pcpu->dying, hnnode) {
+ ct = nf_ct_tuplehash_to_ctrack(h);
+ if (nf_ct_rtcache_find(ct) != NULL) {
+ wait = true;
+ break;
+ }
+ }
+ spin_unlock_bh(&pcpu->lock);
+ rcu_read_unlock();
+ }
+
+ return wait;
+}
+
+static void __exit nf_conntrack_rtcache_fini(void)
+{
+ struct net *net;
+ int count = 0;
+
+ synchronize_net();
+
+ unregister_netdevice_notifier(&nf_rtcache_notifier);
+ unregister_pernet_subsys(&rtcache_ops_net_ops);
+
+ synchronize_net();
+
+ rtnl_lock();
+
+ /* zap all conntracks with rtcache extension */
+ for_each_net(net)
+ nf_ct_iterate_cleanup_net(net, nf_rtcache_ext_remove, NULL, 0, 0);
+
+ for_each_net(net) {
+ /* .. and make sure they're gone from dying list, too */
+ while (nf_conntrack_rtcache_wait_for_dying(net)) {
+ msleep(200);
+ WARN_ONCE(++count > 25, "Waiting for all rtcache conntracks to go away\n");
+ }
+ }
+
+ rtnl_unlock();
+
+ synchronize_net();
+ nf_ct_extend_unregister(&rtcache_extend);
+}
+module_init(nf_conntrack_rtcache_init);
+module_exit(nf_conntrack_rtcache_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Florian Westphal <fw@strlen.de>");
+MODULE_DESCRIPTION("Conntrack route cache extension");

53
target/linux/generic/backport-5.4/030-modpost-add-a-helper-to-get-data-pointed-by-a-symbol.patch Normal file
View File

@ -0,0 +1,53 @@
From afa0459daa7b08c7b2c879705b69d39b734a11d0 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 15 Nov 2019 02:42:21 +0900
Subject: [PATCH] modpost: add a helper to get data pointed by a symbol
When CONFIG_MODULE_REL_CRCS is enabled, the value of __crc_* is not
an absolute value, but the address to the CRC data embedded in the
.rodata section.
Getting the data pointed by the symbol value is somewhat complex.
Split it out into a new helper, sym_get_data().
I will reuse it to refactor namespace_from_kstrtabns() in the next
commit.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
scripts/mod/modpost.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -312,6 +312,18 @@ static const char *sec_name(struct elf_i
return sech_name(elf, &elf->sechdrs[secindex]);
}
+static void *sym_get_data(const struct elf_info *info, const Elf_Sym *sym)
+{
+ Elf_Shdr *sechdr = &info->sechdrs[sym->st_shndx];
+ unsigned long offset;
+
+ offset = sym->st_value;
+ if (info->hdr->e_type != ET_REL)
+ offset -= sechdr->sh_addr;
+
+ return (void *)info->hdr + sechdr->sh_offset + offset;
+}
+
#define strstarts(str, prefix) (strncmp(str, prefix, strlen(prefix)) == 0)
static enum export export_from_secname(struct elf_info *elf, unsigned int sec)
@@ -701,10 +713,7 @@ static void handle_modversions(struct mo
unsigned int *crcp;
/* symbol points to the CRC in the ELF object */
- crcp = (void *)info->hdr + sym->st_value +
- info->sechdrs[sym->st_shndx].sh_offset -
- (info->hdr->e_type != ET_REL ?
- info->sechdrs[sym->st_shndx].sh_addr : 0);
+ crcp = sym_get_data(info, sym);
crc = TO_NATIVE(*crcp);
}
sym_update_crc(symname + strlen("__crc_"), mod, crc,

62
target/linux/generic/backport-5.4/031-modpost-refactor-namespace_from_kstrtabns-to-not-har.patch Normal file
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@ -0,0 +1,62 @@
From e84f9fbbece1585f45a03ccc11eeabe121cadc1b Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 15 Nov 2019 02:42:22 +0900
Subject: [PATCH] modpost: refactor namespace_from_kstrtabns() to not hard-code
section name
Currently, namespace_from_kstrtabns() relies on the fact that
namespace strings are recorded in the __ksymtab_strings section.
Actually, it is coded in include/linux/export.h, but modpost does
not need to hard-code the section name.
Elf_Sym::st_shndx holds the index of the relevant section. Using it is
a more portable way to get the namespace string.
Make namespace_from_kstrtabns() simply call sym_get_data(), and delete
the info->ksymtab_strings .
While I was here, I added more 'const' qualifiers to pointers.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
scripts/mod/modpost.c | 10 +++-------
scripts/mod/modpost.h | 1 -
2 files changed, 3 insertions(+), 8 deletions(-)
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -360,10 +360,10 @@ static enum export export_from_sec(struc
return export_unknown;
}
-static const char *namespace_from_kstrtabns(struct elf_info *info,
- Elf_Sym *kstrtabns)
+static const char *namespace_from_kstrtabns(const struct elf_info *info,
+ const Elf_Sym *sym)
{
- char *value = info->ksymtab_strings + kstrtabns->st_value;
+ const char *value = sym_get_data(info, sym);
return value[0] ? value : NULL;
}
@@ -605,10 +605,6 @@ static int parse_elf(struct elf_info *in
info->export_unused_gpl_sec = i;
else if (strcmp(secname, "__ksymtab_gpl_future") == 0)
info->export_gpl_future_sec = i;
- else if (strcmp(secname, "__ksymtab_strings") == 0)
- info->ksymtab_strings = (void *)hdr +
- sechdrs[i].sh_offset -
- sechdrs[i].sh_addr;
if (sechdrs[i].sh_type == SHT_SYMTAB) {
unsigned int sh_link_idx;
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -143,7 +143,6 @@ struct elf_info {
Elf_Section export_gpl_sec;
Elf_Section export_unused_gpl_sec;
Elf_Section export_gpl_future_sec;
- char *ksymtab_strings;
char *strtab;
char *modinfo;
unsigned int modinfo_len;

60
target/linux/generic/backport-5.4/040-ARM-8918-2-only-build-return_address-if-needed.patch Normal file
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@ -0,0 +1,60 @@
From fb033c95c94ca1ee3d16e04ebdb85d65fb55fff8 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Mon, 4 Nov 2019 18:15:15 +0100
Subject: [PATCH] ARM: 8918/2: only build return_address() if needed
The system currently warns if the config conditions for
building return_address in arch/arm/kernel/return_address.c
are not met, leaving just an EXPORT_SYMBOL_GPL(return_address)
of a function defined to be 'static linline'.
This is a result of aeea3592a13b ("ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h").
Since we're not going to build anything other than an exported
symbol for something that is already being defined to be an
inline-able return of NULL, just avoid building the code to
remove the following warning:
Fixes: aeea3592a13b ("ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h")
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
arch/arm/kernel/Makefile | 6 +++++-
arch/arm/kernel/return_address.c | 4 ----
2 files changed, 5 insertions(+), 5 deletions(-)
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -17,10 +17,14 @@ CFLAGS_REMOVE_return_address.o = -pg
# Object file lists.
obj-y := elf.o entry-common.o irq.o opcodes.o \
- process.o ptrace.o reboot.o return_address.o \
+ process.o ptrace.o reboot.o \
setup.o signal.o sigreturn_codes.o \
stacktrace.o sys_arm.o time.o traps.o
+ifneq ($(CONFIG_ARM_UNWIND),y)
+obj-$(CONFIG_FRAME_POINTER) += return_address.o
+endif
+
obj-$(CONFIG_ATAGS) += atags_parse.o
obj-$(CONFIG_ATAGS_PROC) += atags_proc.o
obj-$(CONFIG_DEPRECATED_PARAM_STRUCT) += atags_compat.o
--- a/arch/arm/kernel/return_address.c
+++ b/arch/arm/kernel/return_address.c
@@ -7,8 +7,6 @@
*/
#include <linux/export.h>
#include <linux/ftrace.h>
-
-#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
#include <linux/sched.h>
#include <asm/stacktrace.h>
@@ -53,6 +51,4 @@ void *return_address(unsigned int level)
return NULL;
}
-#endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) */
-
EXPORT_SYMBOL_GPL(return_address);

134
target/linux/generic/backport-5.4/300-MIPS-Exclude-more-dsemul-code-when-CONFIG_MIPS_FP_SU.patch Normal file
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@ -0,0 +1,134 @@
From d96c3157f9ca177727fbad960fcf6f52f145f471 Mon Sep 17 00:00:00 2001
From: Yousong Zhou <yszhou4tech@gmail.com>
Date: Thu, 9 Jan 2020 11:33:19 +0800
Subject: [PATCH] MIPS: Exclude more dsemul code when CONFIG_MIPS_FP_SUPPORT=n
This furthers what commit 42b10815d559 ("MIPS: Don't compile math-emu
when CONFIG_MIPS_FP_SUPPORT=n") has done
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
---
arch/mips/include/asm/processor.h | 12 ++++++------
arch/mips/kernel/process.c | 10 ++++++++--
arch/mips/kernel/vdso.c | 26 +++++++++++++++-----------
3 files changed, 29 insertions(+), 19 deletions(-)
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -253,13 +253,13 @@ struct thread_struct {
#ifdef CONFIG_MIPS_FP_SUPPORT
/* Saved fpu/fpu emulator stuff. */
struct mips_fpu_struct fpu FPU_ALIGN;
-#endif
/* Assigned branch delay slot 'emulation' frame */
atomic_t bd_emu_frame;
/* PC of the branch from a branch delay slot 'emulation' */
unsigned long bd_emu_branch_pc;
/* PC to continue from following a branch delay slot 'emulation' */
unsigned long bd_emu_cont_pc;
+#endif
#ifdef CONFIG_MIPS_MT_FPAFF
/* Emulated instruction count */
unsigned long emulated_fp;
@@ -302,7 +302,11 @@ struct thread_struct {
.fpr = {{{0,},},}, \
.fcr31 = 0, \
.msacsr = 0, \
- },
+ }, \
+ /* Delay slot emulation */ \
+ .bd_emu_frame = ATOMIC_INIT(BD_EMUFRAME_NONE), \
+ .bd_emu_branch_pc = 0, \
+ .bd_emu_cont_pc = 0,
#else
# define FPU_INIT
#endif
@@ -334,10 +338,6 @@ struct thread_struct {
* FPU affinity state (null if not FPAFF) \
*/ \
FPAFF_INIT \
- /* Delay slot emulation */ \
- .bd_emu_frame = ATOMIC_INIT(BD_EMUFRAME_NONE), \
- .bd_emu_branch_pc = 0, \
- .bd_emu_cont_pc = 0, \
/* \
* Saved DSP stuff \
*/ \
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -75,7 +75,9 @@ void start_thread(struct pt_regs * regs,
lose_fpu(0);
clear_thread_flag(TIF_MSA_CTX_LIVE);
clear_used_math();
+#ifdef CONFIG_MIPS_FP_SUPPORT
atomic_set(&current->thread.bd_emu_frame, BD_EMUFRAME_NONE);
+#endif
init_dsp();
regs->cp0_epc = pc;
regs->regs[29] = sp;
@@ -176,7 +178,9 @@ int copy_thread_tls(unsigned long clone_
clear_tsk_thread_flag(p, TIF_FPUBOUND);
#endif /* CONFIG_MIPS_MT_FPAFF */
+#ifdef CONFIG_MIPS_FP_SUPPORT
atomic_set(&p->thread.bd_emu_frame, BD_EMUFRAME_NONE);
+#endif
if (clone_flags & CLONE_SETTLS)
ti->tp_value = tls;
@@ -650,8 +654,10 @@ unsigned long mips_stack_top(void)
{
unsigned long top = TASK_SIZE & PAGE_MASK;
- /* One page for branch delay slot "emulation" */
- top -= PAGE_SIZE;
+ if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) {
+ /* One page for branch delay slot "emulation" */
+ top -= PAGE_SIZE;
+ }
/* Space for the VDSO, data page & GIC user page */
top -= PAGE_ALIGN(current->thread.abi->vdso->size);
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -71,10 +71,12 @@ subsys_initcall(init_vdso);
static unsigned long vdso_base(void)
{
- unsigned long base;
+ unsigned long base = STACK_TOP;
- /* Skip the delay slot emulation page */
- base = STACK_TOP + PAGE_SIZE;
+ if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) {
+ /* Skip the delay slot emulation page */
+ base += PAGE_SIZE;
+ }
if (current->flags & PF_RANDOMIZE) {
base += get_random_int() & (VDSO_RANDOMIZE_SIZE - 1);
@@ -95,14 +97,16 @@ int arch_setup_additional_pages(struct l
if (down_write_killable(&mm->mmap_sem))
return -EINTR;
- /* Map delay slot emulation page */
- base = mmap_region(NULL, STACK_TOP, PAGE_SIZE,
- VM_READ | VM_EXEC |
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
- 0, NULL);
- if (IS_ERR_VALUE(base)) {
- ret = base;
- goto out;
+ if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) {
+ /* Map delay slot emulation page */
+ base = mmap_region(NULL, STACK_TOP, PAGE_SIZE,
+ VM_READ | VM_EXEC |
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
+ 0, NULL);
+ if (IS_ERR_VALUE(base)) {
+ ret = base;
+ goto out;
+ }
}
/*

99
target/linux/generic/backport-5.4/343-netfilter-nft_flow_offload-handle-netdevice-events-f.patch Normal file
View File

@ -0,0 +1,99 @@
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 25 Jan 2018 12:58:55 +0100
Subject: [PATCH] netfilter: nft_flow_offload: handle netdevice events from
nf_flow_table
Move the code that deals with device events to the core.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -529,5 +529,35 @@ void nf_flow_table_free(struct nf_flowta
}
EXPORT_SYMBOL_GPL(nf_flow_table_free);
+static int nf_flow_table_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+ if (event != NETDEV_DOWN)
+ return NOTIFY_DONE;
+
+ nf_flow_table_cleanup(dev);
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block flow_offload_netdev_notifier = {
+ .notifier_call = nf_flow_table_netdev_event,
+};
+
+static int __init nf_flow_table_module_init(void)
+{
+ return register_netdevice_notifier(&flow_offload_netdev_notifier);
+}
+
+static void __exit nf_flow_table_module_exit(void)
+{
+ unregister_netdevice_notifier(&flow_offload_netdev_notifier);
+}
+
+module_init(nf_flow_table_module_init);
+module_exit(nf_flow_table_module_exit);
+
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -234,47 +234,14 @@ static struct nft_expr_type nft_flow_off
.owner = THIS_MODULE,
};
-static int flow_offload_netdev_event(struct notifier_block *this,
- unsigned long event, void *ptr)
-{
- struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-
- if (event != NETDEV_DOWN)
- return NOTIFY_DONE;
-
- nf_flow_table_cleanup(dev);
-
- return NOTIFY_DONE;
-}
-
-static struct notifier_block flow_offload_netdev_notifier = {
- .notifier_call = flow_offload_netdev_event,
-};
-
static int __init nft_flow_offload_module_init(void)
{
- int err;
-
- err = register_netdevice_notifier(&flow_offload_netdev_notifier);
- if (err)
- goto err;
-
- err = nft_register_expr(&nft_flow_offload_type);
- if (err < 0)
- goto register_expr;
-
- return 0;
-
-register_expr:
- unregister_netdevice_notifier(&flow_offload_netdev_notifier);
-err:
- return err;
+ return nft_register_expr(&nft_flow_offload_type);
}
static void __exit nft_flow_offload_module_exit(void)
{
nft_unregister_expr(&nft_flow_offload_type);
- unregister_netdevice_notifier(&flow_offload_netdev_notifier);
}
module_init(nft_flow_offload_module_init);

114
target/linux/generic/backport-5.4/370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch Normal file
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@ -0,0 +1,114 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 13 Jun 2018 12:33:39 +0200
Subject: [PATCH] netfilter: nf_flow_table: fix offloaded connection timeout
corner case
The full teardown of offloaded flows is deferred to a gc work item,
however processing of packets by netfilter needs to happen immediately
after a teardown is requested, because the conntrack state needs to be
fixed up.
Since the IPS_OFFLOAD_BIT is still kept until the teardown is complete,
the netfilter conntrack gc can accidentally bump the timeout of a
connection where offload was just stopped, causing a conntrack entry
leak.
Fix this by moving the conntrack timeout bumping from conntrack core to
the nf_flow_offload and add a check to prevent bogus timeout bumps.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1206,18 +1206,6 @@ static bool gc_worker_can_early_drop(con
return false;
}
-#define DAY (86400 * HZ)
-
-/* Set an arbitrary timeout large enough not to ever expire, this save
- * us a check for the IPS_OFFLOAD_BIT from the packet path via
- * nf_ct_is_expired().
- */
-static void nf_ct_offload_timeout(struct nf_conn *ct)
-{
- if (nf_ct_expires(ct) < DAY / 2)
- ct->timeout = nfct_time_stamp + DAY;
-}
-
static void gc_worker(struct work_struct *work)
{
unsigned int min_interval = max(HZ / GC_MAX_BUCKETS_DIV, 1u);
@@ -1254,10 +1242,8 @@ static void gc_worker(struct work_struct
tmp = nf_ct_tuplehash_to_ctrack(h);
scanned++;
- if (test_bit(IPS_OFFLOAD_BIT, &tmp->status)) {
- nf_ct_offload_timeout(tmp);
+ if (test_bit(IPS_OFFLOAD_BIT, &tmp->status))
continue;
- }
if (nf_ct_is_expired(tmp)) {
nf_ct_gc_expired(tmp);
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -198,10 +198,29 @@ static const struct rhashtable_params nf
.automatic_shrinking = true,
};
+#define DAY (86400 * HZ)
+
+/* Set an arbitrary timeout large enough not to ever expire, this save
+ * us a check for the IPS_OFFLOAD_BIT from the packet path via
+ * nf_ct_is_expired().
+ */
+static void nf_ct_offload_timeout(struct flow_offload *flow)
+{
+ struct flow_offload_entry *entry;
+ struct nf_conn *ct;
+
+ entry = container_of(flow, struct flow_offload_entry, flow);
+ ct = entry->ct;
+
+ if (nf_ct_expires(ct) < DAY / 2)
+ ct->timeout = nfct_time_stamp + DAY;
+}
+
int flow_offload_add(struct nf_flowtable *flow_table, struct flow_offload *flow)
{
int err;
+ nf_ct_offload_timeout(flow);
flow->timeout = (u32)jiffies + NF_FLOW_TIMEOUT;
err = rhashtable_insert_fast(&flow_table->rhashtable,
@@ -304,6 +323,7 @@ nf_flow_table_iterate(struct nf_flowtabl
rhashtable_walk_start(&hti);
while ((tuplehash = rhashtable_walk_next(&hti))) {
+
if (IS_ERR(tuplehash)) {
if (PTR_ERR(tuplehash) != -EAGAIN) {
err = PTR_ERR(tuplehash);
@@ -328,10 +348,17 @@ static void nf_flow_offload_gc_step(stru
{
struct nf_flowtable *flow_table = data;
struct flow_offload_entry *e;
+ bool teardown;
e = container_of(flow, struct flow_offload_entry, flow);
- if (nf_flow_has_expired(flow) || nf_ct_is_dying(e->ct) ||
- (flow->flags & (FLOW_OFFLOAD_DYING | FLOW_OFFLOAD_TEARDOWN)))
+
+ teardown = flow->flags & (FLOW_OFFLOAD_DYING |
+ FLOW_OFFLOAD_TEARDOWN);
+
+ if (!teardown)
+ nf_ct_offload_timeout(flow);
+
+ if (nf_flow_has_expired(flow) || teardown)
flow_offload_del(flow_table, flow);
}

24
target/linux/generic/backport-5.4/371-netfilter-nf_flow_table-fix-up-ct-state-of-flows-aft.patch Normal file
View File

@ -0,0 +1,24 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 14 Jun 2018 11:20:09 +0200
Subject: [PATCH] netfilter: nf_flow_table: fix up ct state of flows after
timeout
If a connection simply times out instead of being torn down, it is left
active with a long timeout. Fix this by calling flow_offload_fixup_ct_state
here as well.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -268,6 +268,9 @@ static void flow_offload_del(struct nf_f
else if (flow->flags & FLOW_OFFLOAD_TEARDOWN)
flow_offload_fixup_ct_timeout(e->ct);
+ if (!(flow->flags & FLOW_OFFLOAD_TEARDOWN))
+ flow_offload_fixup_ct_state(e->ct);
+
flow_offload_free(flow);
}

28
target/linux/generic/backport-5.4/410-mtd-fix-calculating-partition-end-address.patch Normal file
View File

@ -0,0 +1,28 @@
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Mon, 9 Mar 2020 08:30:19 +0100
Subject: [PATCH] mtd: fix calculating partition end address
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This fixes check for partitions that don't start at beginning of their
parents. Missing partition's offset in formula could result in forcing
read-only incorrectly.
Fixes: 6750f61a13a0 ("mtd: improve calculating partition boundaries when checking for alignment")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
drivers/mtd/mtdpart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -524,7 +524,7 @@ static struct mtd_part *allocate_partiti
part->name);
}
- tmp = part_absolute_offset(parent) + slave->mtd.size;
+ tmp = part_absolute_offset(parent) + slave->offset + slave->mtd.size;
remainder = do_div(tmp, wr_alignment);
if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
slave->mtd.flags &= ~MTD_WRITEABLE;

179
target/linux/generic/backport-5.4/716-v5.4-net-sfp-move-fwnode-parsing-into-sfp-bus-layer.patch Normal file
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@ -0,0 +1,179 @@
From 4054955f0da08c81d42220cb445820d474f1ac92 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Sat, 14 Sep 2019 14:21:22 +0100
Subject: [PATCH 614/660] net: sfp: move fwnode parsing into sfp-bus layer
Rather than parsing the sfp firmware node in phylink, parse it in the
sfp-bus code, so we can re-use this code for PHYs without having to
duplicate the parsing.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/phylink.c | 21 ++++---------
drivers/net/phy/sfp-bus.c | 65 +++++++++++++++++++++++++--------------
include/linux/sfp.h | 10 +++---
3 files changed, 53 insertions(+), 43 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -565,26 +565,17 @@ static const struct sfp_upstream_ops sfp
static int phylink_register_sfp(struct phylink *pl,
struct fwnode_handle *fwnode)
{
- struct fwnode_reference_args ref;
+ struct sfp_bus *bus;
int ret;
- if (!fwnode)
- return 0;
-
- ret = fwnode_property_get_reference_args(fwnode, "sfp", NULL,
- 0, 0, &ref);
- if (ret < 0) {
- if (ret == -ENOENT)
- return 0;
-
- phylink_err(pl, "unable to parse \"sfp\" node: %d\n",
- ret);
+ bus = sfp_register_upstream_node(fwnode, pl, &sfp_phylink_ops);
+ if (IS_ERR(bus)) {
+ ret = PTR_ERR(bus);
+ phylink_err(pl, "unable to attach SFP bus: %d\n", ret);
return ret;
}
- pl->sfp_bus = sfp_register_upstream(ref.fwnode, pl, &sfp_phylink_ops);
- if (!pl->sfp_bus)
- return -ENOMEM;
+ pl->sfp_bus = bus;
return 0;
}
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -4,6 +4,7 @@
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/phylink.h>
+#include <linux/property.h>
#include <linux/rtnetlink.h>
#include <linux/slab.h>
@@ -445,45 +446,63 @@ static void sfp_upstream_clear(struct sf
}
/**
- * sfp_register_upstream() - Register the neighbouring device
- * @fwnode: firmware node for the SFP bus
+ * sfp_register_upstream_node() - parse and register the neighbouring device
+ * @fwnode: firmware node for the parent device (MAC or PHY)
* @upstream: the upstream private data
* @ops: the upstream's &struct sfp_upstream_ops
*
- * Register the upstream device (eg, PHY) with the SFP bus. MAC drivers
- * should use phylink, which will call this function for them. Returns
- * a pointer to the allocated &struct sfp_bus.
+ * Parse the parent device's firmware node for a SFP bus, and register the
+ * SFP bus using sfp_register_upstream().
*
- * On error, returns %NULL.
+ * Returns: on success, a pointer to the sfp_bus structure,
+ * %NULL if no SFP is specified,
+ * on failure, an error pointer value:
+ * corresponding to the errors detailed for
+ * fwnode_property_get_reference_args().
+ * %-ENOMEM if we failed to allocate the bus.
+ * an error from the upstream's connect_phy() method.
*/
-struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode,
- void *upstream,
- const struct sfp_upstream_ops *ops)
-{
- struct sfp_bus *bus = sfp_bus_get(fwnode);
- int ret = 0;
-
- if (bus) {
- rtnl_lock();
- bus->upstream_ops = ops;
- bus->upstream = upstream;
+struct sfp_bus *sfp_register_upstream_node(struct fwnode_handle *fwnode,
+ void *upstream,
+ const struct sfp_upstream_ops *ops)
+{
+ struct fwnode_reference_args ref;
+ struct sfp_bus *bus;
+ int ret;
- if (bus->sfp) {
- ret = sfp_register_bus(bus);
- if (ret)
- sfp_upstream_clear(bus);
- }
- rtnl_unlock();
+ ret = fwnode_property_get_reference_args(fwnode, "sfp", NULL,
+ 0, 0, &ref);
+ if (ret == -ENOENT)
+ return NULL;
+ else if (ret < 0)
+ return ERR_PTR(ret);
+
+ bus = sfp_bus_get(ref.fwnode);
+ fwnode_handle_put(ref.fwnode);
+ if (!bus)
+ return ERR_PTR(-ENOMEM);
+
+ rtnl_lock();
+ bus->upstream_ops = ops;
+ bus->upstream = upstream;
+
+ if (bus->sfp) {
+ ret = sfp_register_bus(bus);
+ if (ret)
+ sfp_upstream_clear(bus);
+ } else {
+ ret = 0;
}
+ rtnl_unlock();
if (ret) {
sfp_bus_put(bus);
- bus = NULL;
+ bus = ERR_PTR(ret);
}
return bus;
}
-EXPORT_SYMBOL_GPL(sfp_register_upstream);
+EXPORT_SYMBOL_GPL(sfp_register_upstream_node);
/**
* sfp_unregister_upstream() - Unregister sfp bus
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -508,9 +508,9 @@ int sfp_get_module_eeprom(struct sfp_bus
u8 *data);
void sfp_upstream_start(struct sfp_bus *bus);
void sfp_upstream_stop(struct sfp_bus *bus);
-struct sfp_bus *sfp_register_upstream(struct fwnode_handle *fwnode,
- void *upstream,
- const struct sfp_upstream_ops *ops);
+struct sfp_bus *sfp_register_upstream_node(struct fwnode_handle *fwnode,
+ void *upstream,
+ const struct sfp_upstream_ops *ops);
void sfp_unregister_upstream(struct sfp_bus *bus);
#else
static inline int sfp_parse_port(struct sfp_bus *bus,
@@ -553,11 +553,11 @@ static inline void sfp_upstream_stop(str
{
}
-static inline struct sfp_bus *sfp_register_upstream(
+static inline struct sfp_bus *sfp_register_upstream_node(
struct fwnode_handle *fwnode, void *upstream,
const struct sfp_upstream_ops *ops)
{
- return (struct sfp_bus *)-1;
+ return NULL;
}
static inline void sfp_unregister_upstream(struct sfp_bus *bus)

254
target/linux/generic/backport-5.4/717-v5.5-net-sfp-rework-upstream-interface.patch Normal file
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@ -0,0 +1,254 @@
From 863b5b6941f9f43b924393b6ba2b36647e7dee42 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Thu, 7 Nov 2019 17:06:08 +0000
Subject: [PATCH 615/660] net: sfp: rework upstream interface
The current upstream interface is an all-or-nothing, which is
sub-optimal for future changes, as it doesn't allow the upstream driver
to prepare for the SFP module becoming available, as it is at boot.
Switch to a find-sfp-bus, add-upstream, del-upstream, put-sfp-bus
interface structure instead, which allows the upstream driver to
prepare for a module being available as soon as add-upstream is called.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/phylink.c | 10 +++--
drivers/net/phy/sfp-bus.c | 92 +++++++++++++++++++++++++++------------
include/linux/sfp.h | 25 +++++++----
3 files changed, 88 insertions(+), 39 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -568,7 +568,7 @@ static int phylink_register_sfp(struct p
struct sfp_bus *bus;
int ret;
- bus = sfp_register_upstream_node(fwnode, pl, &sfp_phylink_ops);
+ bus = sfp_bus_find_fwnode(fwnode);
if (IS_ERR(bus)) {
ret = PTR_ERR(bus);
phylink_err(pl, "unable to attach SFP bus: %d\n", ret);
@@ -577,7 +577,10 @@ static int phylink_register_sfp(struct p
pl->sfp_bus = bus;
- return 0;
+ ret = sfp_bus_add_upstream(bus, pl, &sfp_phylink_ops);
+ sfp_bus_put(bus);
+
+ return ret;
}
/**
@@ -675,8 +678,7 @@ EXPORT_SYMBOL_GPL(phylink_create);
*/
void phylink_destroy(struct phylink *pl)
{
- if (pl->sfp_bus)
- sfp_unregister_upstream(pl->sfp_bus);
+ sfp_bus_del_upstream(pl->sfp_bus);
if (pl->link_gpio)
gpiod_put(pl->link_gpio);
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -329,10 +329,19 @@ static void sfp_bus_release(struct kref
kfree(bus);
}
-static void sfp_bus_put(struct sfp_bus *bus)
+/**
+ * sfp_bus_put() - put a reference on the &struct sfp_bus
+ * bus: the &struct sfp_bus found via sfp_bus_find_fwnode()
+ *
+ * Put a reference on the &struct sfp_bus and free the underlying structure
+ * if this was the last reference.
+ */
+void sfp_bus_put(struct sfp_bus *bus)
{
- kref_put_mutex(&bus->kref, sfp_bus_release, &sfp_mutex);
+ if (bus)
+ kref_put_mutex(&bus->kref, sfp_bus_release, &sfp_mutex);
}
+EXPORT_SYMBOL_GPL(sfp_bus_put);
static int sfp_register_bus(struct sfp_bus *bus)
{
@@ -348,11 +357,11 @@ static int sfp_register_bus(struct sfp_b
return ret;
}
}
+ bus->registered = true;
bus->socket_ops->attach(bus->sfp);
if (bus->started)
bus->socket_ops->start(bus->sfp);
bus->upstream_ops->attach(bus->upstream, bus);
- bus->registered = true;
return 0;
}
@@ -446,13 +455,12 @@ static void sfp_upstream_clear(struct sf
}
/**
- * sfp_register_upstream_node() - parse and register the neighbouring device
+ * sfp_bus_find_fwnode() - parse and locate the SFP bus from fwnode
* @fwnode: firmware node for the parent device (MAC or PHY)
- * @upstream: the upstream private data
- * @ops: the upstream's &struct sfp_upstream_ops
*
- * Parse the parent device's firmware node for a SFP bus, and register the
- * SFP bus using sfp_register_upstream().
+ * Parse the parent device's firmware node for a SFP bus, and locate
+ * the sfp_bus structure, incrementing its reference count. This must
+ * be put via sfp_bus_put() when done.
*
* Returns: on success, a pointer to the sfp_bus structure,
* %NULL if no SFP is specified,
@@ -462,9 +470,7 @@ static void sfp_upstream_clear(struct sf
* %-ENOMEM if we failed to allocate the bus.
* an error from the upstream's connect_phy() method.
*/
-struct sfp_bus *sfp_register_upstream_node(struct fwnode_handle *fwnode,
- void *upstream,
- const struct sfp_upstream_ops *ops)
+struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode)
{
struct fwnode_reference_args ref;
struct sfp_bus *bus;
@@ -482,7 +488,39 @@ struct sfp_bus *sfp_register_upstream_no
if (!bus)
return ERR_PTR(-ENOMEM);
+ return bus;
+}
+EXPORT_SYMBOL_GPL(sfp_bus_find_fwnode);
+
+/**
+ * sfp_bus_add_upstream() - parse and register the neighbouring device
+ * @bus: the &struct sfp_bus found via sfp_bus_find_fwnode()
+ * @upstream: the upstream private data
+ * @ops: the upstream's &struct sfp_upstream_ops
+ *
+ * Add upstream driver for the SFP bus, and if the bus is complete, register
+ * the SFP bus using sfp_register_upstream(). This takes a reference on the
+ * bus, so it is safe to put the bus after this call.
+ *
+ * Returns: on success, a pointer to the sfp_bus structure,
+ * %NULL if no SFP is specified,
+ * on failure, an error pointer value:
+ * corresponding to the errors detailed for
+ * fwnode_property_get_reference_args().
+ * %-ENOMEM if we failed to allocate the bus.
+ * an error from the upstream's connect_phy() method.
+ */
+int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
+ const struct sfp_upstream_ops *ops)
+{
+ int ret;
+
+ /* If no bus, return success */
+ if (!bus)
+ return 0;
+
rtnl_lock();
+ kref_get(&bus->kref);
bus->upstream_ops = ops;
bus->upstream = upstream;
@@ -495,33 +533,33 @@ struct sfp_bus *sfp_register_upstream_no
}
rtnl_unlock();
- if (ret) {
+ if (ret)
sfp_bus_put(bus);
- bus = ERR_PTR(ret);
- }
- return bus;
+ return ret;
}
-EXPORT_SYMBOL_GPL(sfp_register_upstream_node);
+EXPORT_SYMBOL_GPL(sfp_bus_add_upstream);
/**
- * sfp_unregister_upstream() - Unregister sfp bus
+ * sfp_bus_del_upstream() - Delete a sfp bus
* @bus: a pointer to the &struct sfp_bus structure for the sfp module
*
- * Unregister a previously registered upstream connection for the SFP
- * module. @bus is returned from sfp_register_upstream().
+ * Delete a previously registered upstream connection for the SFP
+ * module. @bus should have been added by sfp_bus_add_upstream().
*/
-void sfp_unregister_upstream(struct sfp_bus *bus)
+void sfp_bus_del_upstream(struct sfp_bus *bus)
{
- rtnl_lock();
- if (bus->sfp)
- sfp_unregister_bus(bus);
- sfp_upstream_clear(bus);
- rtnl_unlock();
+ if (bus) {
+ rtnl_lock();
+ if (bus->sfp)
+ sfp_unregister_bus(bus);
+ sfp_upstream_clear(bus);
+ rtnl_unlock();
- sfp_bus_put(bus);
+ sfp_bus_put(bus);
+ }
}
-EXPORT_SYMBOL_GPL(sfp_unregister_upstream);
+EXPORT_SYMBOL_GPL(sfp_bus_del_upstream);
/* Socket driver entry points */
int sfp_add_phy(struct sfp_bus *bus, struct phy_device *phydev)
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -508,10 +508,11 @@ int sfp_get_module_eeprom(struct sfp_bus
u8 *data);
void sfp_upstream_start(struct sfp_bus *bus);
void sfp_upstream_stop(struct sfp_bus *bus);
-struct sfp_bus *sfp_register_upstream_node(struct fwnode_handle *fwnode,
- void *upstream,
- const struct sfp_upstream_ops *ops);
-void sfp_unregister_upstream(struct sfp_bus *bus);
+void sfp_bus_put(struct sfp_bus *bus);
+struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode);
+int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
+ const struct sfp_upstream_ops *ops);
+void sfp_bus_del_upstream(struct sfp_bus *bus);
#else
static inline int sfp_parse_port(struct sfp_bus *bus,
const struct sfp_eeprom_id *id,
@@ -553,14 +554,22 @@ static inline void sfp_upstream_stop(str
{
}
-static inline struct sfp_bus *sfp_register_upstream_node(
- struct fwnode_handle *fwnode, void *upstream,
- const struct sfp_upstream_ops *ops)
+static inline void sfp_bus_put(struct sfp_bus *bus)
+{
+}
+
+static inline struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode)
{
return NULL;
}
-static inline void sfp_unregister_upstream(struct sfp_bus *bus)
+static int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
+ const struct sfp_upstream_ops *ops)
+{
+ return 0;
+}
+
+static inline void sfp_bus_del_upstream(struct sfp_bus *bus)
{
}
#endif

27
target/linux/generic/backport-5.4/718-v5.5-net-sfp-fix-sfp_bus_put-kernel-documentation.patch Normal file
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@ -0,0 +1,27 @@
From ea7bfd81921827d334c2a23bd11ef0e4e2abafd2 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Sat, 9 Nov 2019 08:13:50 +0000
Subject: [PATCH 616/660] net: sfp: fix sfp_bus_put() kernel documentation
The kbuild test robot found a problem with htmldocs with the recent
change to the SFP interfaces. Fix the kernel documentation for
sfp_bus_put() which was missing an '@' before the argument name
description.
Fixes: 727b3668b730 ("net: sfp: rework upstream interface")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp-bus.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -331,7 +331,7 @@ static void sfp_bus_release(struct kref
/**
* sfp_bus_put() - put a reference on the &struct sfp_bus
- * bus: the &struct sfp_bus found via sfp_bus_find_fwnode()
+ * @bus: the &struct sfp_bus found via sfp_bus_find_fwnode()
*
* Put a reference on the &struct sfp_bus and free the underlying structure
* if this was the last reference.

27
target/linux/generic/backport-5.4/719-v5.5-net-sfp-fix-sfp_bus_add_upstream-warning.patch Normal file
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@ -0,0 +1,27 @@
From f76d84cd85f8bd3f083495f7ca723822cba8abc9 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Mon, 11 Nov 2019 10:23:35 +0000
Subject: [PATCH 617/660] net: sfp: fix sfp_bus_add_upstream() warning
When building with SFP disabled, the stub for sfp_bus_add_upstream()
missed "inline". Add it.
Fixes: 727b3668b730 ("net: sfp: rework upstream interface")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
include/linux/sfp.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -563,8 +563,8 @@ static inline struct sfp_bus *sfp_bus_fi
return NULL;
}
-static int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
- const struct sfp_upstream_ops *ops)
+static inline int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
+ const struct sfp_upstream_ops *ops)
{
return 0;
}

124
target/linux/generic/backport-5.4/720-v5.5-net-sfp-move-sfp-sub-state-machines-into-separate-fu.patch Normal file
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@ -0,0 +1,124 @@
From b9d6ed5cdb67533feda7f221eb06f2f9f1ff5047 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Oct 2019 19:33:58 +0100
Subject: [PATCH 618/660] net: sfp: move sfp sub-state machines into separate
functions
Move the SFP sub-state machines out of the main state machine function,
in preparation for it doing a bit more with the device state. By doing
so, we ensure that our debug after the main state machine is always
printed.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 74 +++++++++++++++++++++++++------------------
1 file changed, 43 insertions(+), 31 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1544,19 +1544,34 @@ static void sfp_sm_mod_remove(struct sfp
dev_info(sfp->dev, "module removed\n");
}
-static void sfp_sm_event(struct sfp *sfp, unsigned int event)
+/* This state machine tracks the netdev up/down state */
+static void sfp_sm_device(struct sfp *sfp, unsigned int event)
{
- mutex_lock(&sfp->sm_mutex);
+ switch (sfp->sm_dev_state) {
+ default:
+ if (event == SFP_E_DEV_UP)
+ sfp->sm_dev_state = SFP_DEV_UP;
+ break;
- dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n",
- mod_state_to_str(sfp->sm_mod_state),
- dev_state_to_str(sfp->sm_dev_state),
- sm_state_to_str(sfp->sm_state),
- event_to_str(event));
+ case SFP_DEV_UP:
+ if (event == SFP_E_DEV_DOWN) {
+ /* If the module has a PHY, avoid raising TX disable
+ * as this resets the PHY. Otherwise, raise it to
+ * turn the laser off.
+ */
+ if (!sfp->mod_phy)
+ sfp_module_tx_disable(sfp);
+ sfp->sm_dev_state = SFP_DEV_DOWN;
+ }
+ break;
+ }
+}
- /* This state machine tracks the insert/remove state of
- * the module, and handles probing the on-board EEPROM.
- */
+/* This state machine tracks the insert/remove state of
+ * the module, and handles probing the on-board EEPROM.
+ */
+static void sfp_sm_module(struct sfp *sfp, unsigned int event)
+{
switch (sfp->sm_mod_state) {
default:
if (event == SFP_E_INSERT && sfp->attached) {
@@ -1596,27 +1611,10 @@ static void sfp_sm_event(struct sfp *sfp
}
break;
}
+}
- /* This state machine tracks the netdev up/down state */
- switch (sfp->sm_dev_state) {
- default:
- if (event == SFP_E_DEV_UP)
- sfp->sm_dev_state = SFP_DEV_UP;
- break;
-
- case SFP_DEV_UP:
- if (event == SFP_E_DEV_DOWN) {
- /* If the module has a PHY, avoid raising TX disable
- * as this resets the PHY. Otherwise, raise it to
- * turn the laser off.
- */
- if (!sfp->mod_phy)
- sfp_module_tx_disable(sfp);
- sfp->sm_dev_state = SFP_DEV_DOWN;
- }
- break;
- }
-
+static void sfp_sm_main(struct sfp *sfp, unsigned int event)
+{
/* Some events are global */
if (sfp->sm_state != SFP_S_DOWN &&
(sfp->sm_mod_state != SFP_MOD_PRESENT ||
@@ -1627,7 +1625,6 @@ static void sfp_sm_event(struct sfp *sfp
if (sfp->mod_phy)
sfp_sm_phy_detach(sfp);
sfp_sm_next(sfp, SFP_S_DOWN, 0);
- mutex_unlock(&sfp->sm_mutex);
return;
}
@@ -1682,6 +1679,21 @@ static void sfp_sm_event(struct sfp *sfp
case SFP_S_TX_DISABLE:
break;
}
+}
+
+static void sfp_sm_event(struct sfp *sfp, unsigned int event)
+{
+ mutex_lock(&sfp->sm_mutex);
+
+ dev_dbg(sfp->dev, "SM: enter %s:%s:%s event %s\n",
+ mod_state_to_str(sfp->sm_mod_state),
+ dev_state_to_str(sfp->sm_dev_state),
+ sm_state_to_str(sfp->sm_state),
+ event_to_str(event));
+
+ sfp_sm_module(sfp, event);
+ sfp_sm_device(sfp, event);
+ sfp_sm_main(sfp, event);
dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n",
mod_state_to_str(sfp->sm_mod_state),

41
target/linux/generic/backport-5.4/721-v5.5-net-sfp-move-tx-disable-on-device-down-to-main-state.patch Normal file
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@ -0,0 +1,41 @@
From 7e89b737c97a9e7a81dd1584000bc136b92f12fd Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Oct 2019 22:14:47 +0100
Subject: [PATCH 619/660] net: sfp: move tx disable on device down to main
state machine
Move the tx disable assertion on device down to the main state
machine.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1554,15 +1554,8 @@ static void sfp_sm_device(struct sfp *sf
break;
case SFP_DEV_UP:
- if (event == SFP_E_DEV_DOWN) {
- /* If the module has a PHY, avoid raising TX disable
- * as this resets the PHY. Otherwise, raise it to
- * turn the laser off.
- */
- if (!sfp->mod_phy)
- sfp_module_tx_disable(sfp);
+ if (event == SFP_E_DEV_DOWN)
sfp->sm_dev_state = SFP_DEV_DOWN;
- }
break;
}
}
@@ -1624,6 +1617,7 @@ static void sfp_sm_main(struct sfp *sfp,
sfp_sm_link_down(sfp);
if (sfp->mod_phy)
sfp_sm_phy_detach(sfp);
+ sfp_module_tx_disable(sfp);
sfp_sm_next(sfp, SFP_S_DOWN, 0);
return;
}

71
target/linux/generic/backport-5.4/722-v5.5-net-sfp-rename-sfp_sm_ins_next-as-sfp_sm_mod_next.patch Normal file
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@ -0,0 +1,71 @@
From f2a1ccfc4ad4f97c98c3cc18eb32992151ce089a Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Oct 2019 22:27:21 +0100
Subject: [PATCH 620/660] net: sfp: rename sfp_sm_ins_next() as
sfp_sm_mod_next()
sfp_sm_ins_next() modifies the module state machine. Change it's name
to reflect this.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1245,7 +1245,7 @@ static void sfp_sm_next(struct sfp *sfp,
sfp_sm_set_timer(sfp, timeout);
}
-static void sfp_sm_ins_next(struct sfp *sfp, unsigned int state,
+static void sfp_sm_mod_next(struct sfp *sfp, unsigned int state,
unsigned int timeout)
{
sfp->sm_mod_state = state;
@@ -1569,22 +1569,22 @@ static void sfp_sm_module(struct sfp *sf
default:
if (event == SFP_E_INSERT && sfp->attached) {
sfp_module_tx_disable(sfp);
- sfp_sm_ins_next(sfp, SFP_MOD_PROBE, T_PROBE_INIT);
+ sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_PROBE_INIT);
}
break;
case SFP_MOD_PROBE:
if (event == SFP_E_REMOVE) {
- sfp_sm_ins_next(sfp, SFP_MOD_EMPTY, 0);
+ sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
} else if (event == SFP_E_TIMEOUT) {
int val = sfp_sm_mod_probe(sfp);
if (val == 0)
- sfp_sm_ins_next(sfp, SFP_MOD_PRESENT, 0);
+ sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0);
else if (val > 0)
- sfp_sm_ins_next(sfp, SFP_MOD_HPOWER, val);
+ sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, val);
else if (val != -EAGAIN)
- sfp_sm_ins_next(sfp, SFP_MOD_ERROR, 0);
+ sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
else
sfp_sm_set_timer(sfp, T_PROBE_RETRY);
}
@@ -1592,7 +1592,7 @@ static void sfp_sm_module(struct sfp *sf
case SFP_MOD_HPOWER:
if (event == SFP_E_TIMEOUT) {
- sfp_sm_ins_next(sfp, SFP_MOD_PRESENT, 0);
+ sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0);
break;
}
/* fallthrough */
@@ -1600,7 +1600,7 @@ static void sfp_sm_module(struct sfp *sf
case SFP_MOD_ERROR:
if (event == SFP_E_REMOVE) {
sfp_sm_mod_remove(sfp);
- sfp_sm_ins_next(sfp, SFP_MOD_EMPTY, 0);
+ sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
}
break;
}

53
target/linux/generic/backport-5.4/723-v5.5-net-sfp-handle-module-remove-outside-state-machine.patch Normal file
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@ -0,0 +1,53 @@
From d2591ea5520e2ee8fa557f96bb64c23cafac4b20 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 15 Oct 2019 10:33:13 +0100
Subject: [PATCH 621/660] net: sfp: handle module remove outside state machine
Removing a module resets the module state machine back to its initial
state. Rather than explicitly handling this in every state, handle it
early on outside of the state machine.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1565,6 +1565,14 @@ static void sfp_sm_device(struct sfp *sf
*/
static void sfp_sm_module(struct sfp *sfp, unsigned int event)
{
+ /* Handle remove event globally, it resets this state machine */
+ if (event == SFP_E_REMOVE) {
+ if (sfp->sm_mod_state > SFP_MOD_PROBE)
+ sfp_sm_mod_remove(sfp);
+ sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
+ return;
+ }
+
switch (sfp->sm_mod_state) {
default:
if (event == SFP_E_INSERT && sfp->attached) {
@@ -1574,9 +1582,7 @@ static void sfp_sm_module(struct sfp *sf
break;
case SFP_MOD_PROBE:
- if (event == SFP_E_REMOVE) {
- sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
- } else if (event == SFP_E_TIMEOUT) {
+ if (event == SFP_E_TIMEOUT) {
int val = sfp_sm_mod_probe(sfp);
if (val == 0)
@@ -1598,10 +1604,6 @@ static void sfp_sm_module(struct sfp *sf
/* fallthrough */
case SFP_MOD_PRESENT:
case SFP_MOD_ERROR:
- if (event == SFP_E_REMOVE) {
- sfp_sm_mod_remove(sfp);
- sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
- }
break;
}
}

51
target/linux/generic/backport-5.4/724-v5.5-net-sfp-rename-T_PROBE_WAIT-to-T_SERIAL.patch Normal file
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@ -0,0 +1,51 @@
From 615090acb3c0b41691f3a03522ea38350387c0e4 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 15 Oct 2019 10:54:15 +0100
Subject: [PATCH 622/660] net: sfp: rename T_PROBE_WAIT to T_SERIAL
SFF-8472 rev 12.2 defines the time for the serial bus to become ready
using t_serial. Use this as our identifier for this timeout to make
it clear what we are referring to.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -149,11 +149,10 @@ static const enum gpiod_flags gpio_flags
* the same length on the PCB, which means it's possible for MOD DEF 0 to
* connect before the I2C bus on MOD DEF 1/2.
*
- * The SFP MSA specifies 300ms as t_init (the time taken for TX_FAULT to
- * be deasserted) but makes no mention of the earliest time before we can
- * access the I2C EEPROM. However, Avago modules require 300ms.
+ * The SFF-8472 specifies t_serial ("Time from power on until module is
+ * ready for data transmission over the two wire serial bus.") as 300ms.
*/
-#define T_PROBE_INIT msecs_to_jiffies(300)
+#define T_SERIAL msecs_to_jiffies(300)
#define T_HPOWER_LEVEL msecs_to_jiffies(300)
#define T_PROBE_RETRY msecs_to_jiffies(100)
@@ -1560,8 +1559,8 @@ static void sfp_sm_device(struct sfp *sf
}
}
-/* This state machine tracks the insert/remove state of
- * the module, and handles probing the on-board EEPROM.
+/* This state machine tracks the insert/remove state of the module, probes
+ * the on-board EEPROM, and sets up the power level.
*/
static void sfp_sm_module(struct sfp *sfp, unsigned int event)
{
@@ -1577,7 +1576,7 @@ static void sfp_sm_module(struct sfp *sf
default:
if (event == SFP_E_INSERT && sfp->attached) {
sfp_module_tx_disable(sfp);
- sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_PROBE_INIT);
+ sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
}
break;

115
target/linux/generic/backport-5.4/725-v5.5-net-sfp-parse-SFP-power-requirement-earlier.patch Normal file
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@ -0,0 +1,115 @@
From d4b8746219e8c0361e5ed6e440ab3a8a600d1f76 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Oct 2019 17:24:40 +0100
Subject: [PATCH 623/660] net: sfp: parse SFP power requirement earlier
Parse the SFP power requirement earlier, in preparation for moving the
power level setup code.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 42 +++++++++++++++++++++++++++++-------------
1 file changed, 29 insertions(+), 13 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -198,6 +198,8 @@ struct sfp {
unsigned int sm_retries;
struct sfp_eeprom_id id;
+ unsigned int module_power_mW;
+
#if IS_ENABLED(CONFIG_HWMON)
struct sfp_diag diag;
struct device *hwmon_dev;
@@ -1374,17 +1376,14 @@ static void sfp_sm_mod_init(struct sfp *
sfp_sm_probe_phy(sfp);
}
-static int sfp_sm_mod_hpower(struct sfp *sfp)
+static int sfp_module_parse_power(struct sfp *sfp)
{
- u32 power;
- u8 val;
- int err;
+ u32 power_mW = 1000;
- power = 1000;
if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL))
- power = 1500;
+ power_mW = 1500;
if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL))
- power = 2000;
+ power_mW = 2000;
if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE &&
(sfp->id.ext.diagmon & (SFP_DIAGMON_DDM | SFP_DIAGMON_ADDRMODE)) !=
@@ -1393,23 +1392,33 @@ static int sfp_sm_mod_hpower(struct sfp
* or requires an address change sequence, so assume that
* the module powers up in the indicated power mode.
*/
- if (power > sfp->max_power_mW) {
+ if (power_mW > sfp->max_power_mW) {
dev_err(sfp->dev,
"Host does not support %u.%uW modules\n",
- power / 1000, (power / 100) % 10);
+ power_mW / 1000, (power_mW / 100) % 10);
return -EINVAL;
}
return 0;
}
- if (power > sfp->max_power_mW) {
+ if (power_mW > sfp->max_power_mW) {
dev_warn(sfp->dev,
"Host does not support %u.%uW modules, module left in power mode 1\n",
- power / 1000, (power / 100) % 10);
+ power_mW / 1000, (power_mW / 100) % 10);
return 0;
}
- if (power <= 1000)
+ sfp->module_power_mW = power_mW;
+
+ return 0;
+}
+
+static int sfp_sm_mod_hpower(struct sfp *sfp)
+{
+ u8 val;
+ int err;
+
+ if (sfp->module_power_mW <= 1000)
return 0;
err = sfp_read(sfp, true, SFP_EXT_STATUS, &val, sizeof(val));
@@ -1429,7 +1438,8 @@ static int sfp_sm_mod_hpower(struct sfp
}
dev_info(sfp->dev, "Module switched to %u.%uW power level\n",
- power / 1000, (power / 100) % 10);
+ sfp->module_power_mW / 1000,
+ (sfp->module_power_mW / 100) % 10);
return T_HPOWER_LEVEL;
err:
@@ -1516,6 +1526,11 @@ static int sfp_sm_mod_probe(struct sfp *
dev_warn(sfp->dev,
"module address swap to access page 0xA2 is not supported.\n");
+ /* Parse the module power requirement */
+ ret = sfp_module_parse_power(sfp);
+ if (ret < 0)
+ return ret;
+
ret = sfp_hwmon_insert(sfp);
if (ret < 0)
return ret;
@@ -1539,6 +1554,7 @@ static void sfp_sm_mod_remove(struct sfp
sfp_module_tx_disable(sfp);
memset(&sfp->id, 0, sizeof(sfp->id));
+ sfp->module_power_mW = 0;
dev_info(sfp->dev, "module removed\n");
}

65
target/linux/generic/backport-5.4/726-v5.5-net-sfp-avoid-power-switch-on-address-change-modules.patch Normal file
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@ -0,0 +1,65 @@
From dca678b8838945572cf50584cb33a7199c1fd397 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Thu, 17 Oct 2019 00:24:18 +0100
Subject: [PATCH 624/660] net: sfp: avoid power switch on address-change
modules
If the module indicates that it requires an address change sequence to
switch between address 0x50 and 0x51, which we don't support, we can't
write to the register that controls the power mode to switch to high
power mode. Warn the user that the module may not be functional in
this case, and don't try to change the power mode.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 31 ++++++++++++++++++++-----------
1 file changed, 20 insertions(+), 11 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1385,25 +1385,34 @@ static int sfp_module_parse_power(struct
if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL))
power_mW = 2000;
- if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE &&
- (sfp->id.ext.diagmon & (SFP_DIAGMON_DDM | SFP_DIAGMON_ADDRMODE)) !=
- SFP_DIAGMON_DDM) {
- /* The module appears not to implement bus address 0xa2,
- * or requires an address change sequence, so assume that
- * the module powers up in the indicated power mode.
- */
- if (power_mW > sfp->max_power_mW) {
+ if (power_mW > sfp->max_power_mW) {
+ /* Module power specification exceeds the allowed maximum. */
+ if (sfp->id.ext.sff8472_compliance ==
+ SFP_SFF8472_COMPLIANCE_NONE &&
+ !(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) {
+ /* The module appears not to implement bus address
+ * 0xa2, so assume that the module powers up in the
+ * indicated mode.
+ */
dev_err(sfp->dev,
"Host does not support %u.%uW modules\n",
power_mW / 1000, (power_mW / 100) % 10);
return -EINVAL;
+ } else {
+ dev_warn(sfp->dev,
+ "Host does not support %u.%uW modules, module left in power mode 1\n",
+ power_mW / 1000, (power_mW / 100) % 10);
+ return 0;
}
- return 0;
}
- if (power_mW > sfp->max_power_mW) {
+ /* If the module requires a higher power mode, but also requires
+ * an address change sequence, warn the user that the module may
+ * not be functional.
+ */
+ if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE && power_mW > 1000) {
dev_warn(sfp->dev,
- "Host does not support %u.%uW modules, module left in power mode 1\n",
+ "Address Change Sequence not supported but module requies %u.%uW, module may not be functional\n",
power_mW / 1000, (power_mW / 100) % 10);
return 0;
}

52
target/linux/generic/backport-5.4/727-v5.5-net-sfp-control-TX_DISABLE-and-phy-only-from-main-st.patch Normal file
View File

@ -0,0 +1,52 @@
From df5c4d93c5a59cba0f7479a4cd4e22b50726ce88 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Thu, 17 Oct 2019 11:12:42 +0100
Subject: [PATCH 625/660] net: sfp: control TX_DISABLE and phy only from main
state machine
We initialise TX_DISABLE when the sfp cage is probed, and then
maintain its state in the main state machine. However, the module
state machine:
- negates it when detecting a newly inserted module when it's already
guaranteed to be negated.
- negates it when the module is removed, but the main state machine
will do this anyway.
Make TX_DISABLE entirely controlled by the main state machine.
The main state machine also probes the module for a PHY, and removes
the PHY when the the module is removed. Hence, removing the PHY in
sfp_sm_module_remove() is also redundant, and is a left-over from
when we tried to probe for the PHY from the module state machine.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1557,11 +1557,6 @@ static void sfp_sm_mod_remove(struct sfp
sfp_hwmon_remove(sfp);
- if (sfp->mod_phy)
- sfp_sm_phy_detach(sfp);
-
- sfp_module_tx_disable(sfp);
-
memset(&sfp->id, 0, sizeof(sfp->id));
sfp->module_power_mW = 0;
@@ -1599,10 +1594,8 @@ static void sfp_sm_module(struct sfp *sf
switch (sfp->sm_mod_state) {
default:
- if (event == SFP_E_INSERT && sfp->attached) {
- sfp_module_tx_disable(sfp);
+ if (event == SFP_E_INSERT && sfp->attached)
sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
- }
break;
case SFP_MOD_PROBE:

53
target/linux/generic/backport-5.4/728-v5.5-net-sfp-split-the-PHY-probe-from-sfp_sm_mod_init.patch Normal file
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@ -0,0 +1,53 @@
From 5ed0bd49b2d3ac4439c2d7f44e5a82b7cf6f409a Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 18 Oct 2019 10:09:02 +0100
Subject: [PATCH 626/660] net: sfp: split the PHY probe from sfp_sm_mod_init()
Move the PHY probe into a separate function, splitting it from
sfp_sm_mod_init(). This will allow us to eliminate the 50ms mdelay()
inside the state machine.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1353,14 +1353,10 @@ static void sfp_sm_fault(struct sfp *sfp
static void sfp_sm_mod_init(struct sfp *sfp)
{
sfp_module_tx_enable(sfp);
+}
- /* Wait t_init before indicating that the link is up, provided the
- * current state indicates no TX_FAULT. If TX_FAULT clears before
- * this time, that's fine too.
- */
- sfp_sm_next(sfp, SFP_S_INIT, T_INIT_JIFFIES);
- sfp->sm_retries = 5;
-
+static void sfp_sm_probe_for_phy(struct sfp *sfp)
+{
/* Setting the serdes link mode is guesswork: there's no
* field in the EEPROM which indicates what mode should
* be used.
@@ -1645,8 +1641,17 @@ static void sfp_sm_main(struct sfp *sfp,
switch (sfp->sm_state) {
case SFP_S_DOWN:
if (sfp->sm_mod_state == SFP_MOD_PRESENT &&
- sfp->sm_dev_state == SFP_DEV_UP)
+ sfp->sm_dev_state == SFP_DEV_UP) {
sfp_sm_mod_init(sfp);
+ sfp_sm_probe_for_phy(sfp);
+
+ /* Wait t_init before indicating that the link is up,
+ * provided the current state indicates no TX_FAULT. If
+ * TX_FAULT clears before this time, that's fine too.
+ */
+ sfp_sm_next(sfp, SFP_S_INIT, T_INIT_JIFFIES);
+ sfp->sm_retries = 5;
+ }
break;
case SFP_S_INIT:

130
target/linux/generic/backport-5.4/729-v5.5-net-sfp-eliminate-mdelay-from-PHY-probe.patch Normal file
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@ -0,0 +1,130 @@
From 0fe72afaa31f98ebd71bd6683fc47021105d0157 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 18 Oct 2019 10:21:46 +0100
Subject: [PATCH 627/660] net: sfp: eliminate mdelay() from PHY probe
Rather than using mdelay() to wait before probing the PHY (which holds
several locks, including the rtnl lock), add an extra wait state to
the state machine to introduce the 50ms delay without holding any
locks.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 52 +++++++++++++++++++++++++++++++++----------
1 file changed, 40 insertions(+), 12 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -54,6 +54,7 @@ enum {
SFP_DEV_UP,
SFP_S_DOWN = 0,
+ SFP_S_WAIT,
SFP_S_INIT,
SFP_S_WAIT_LOS,
SFP_S_LINK_UP,
@@ -110,6 +111,7 @@ static const char *event_to_str(unsigned
static const char * const sm_state_strings[] = {
[SFP_S_DOWN] = "down",
+ [SFP_S_WAIT] = "wait",
[SFP_S_INIT] = "init",
[SFP_S_WAIT_LOS] = "wait_los",
[SFP_S_LINK_UP] = "link_up",
@@ -141,6 +143,7 @@ static const enum gpiod_flags gpio_flags
GPIOD_ASIS,
};
+#define T_WAIT msecs_to_jiffies(50)
#define T_INIT_JIFFIES msecs_to_jiffies(300)
#define T_RESET_US 10
#define T_FAULT_RECOVER msecs_to_jiffies(1000)
@@ -161,9 +164,6 @@ static const enum gpiod_flags gpio_flags
*/
#define SFP_PHY_ADDR 22
-/* Give this long for the PHY to reset. */
-#define T_PHY_RESET_MS 50
-
struct sff_data {
unsigned int gpios;
bool (*module_supported)(const struct sfp_eeprom_id *id);
@@ -1267,8 +1267,6 @@ static void sfp_sm_probe_phy(struct sfp
struct phy_device *phy;
int err;
- msleep(T_PHY_RESET_MS);
-
phy = mdiobus_scan(sfp->i2c_mii, SFP_PHY_ADDR);
if (phy == ERR_PTR(-ENODEV)) {
dev_info(sfp->dev, "no PHY detected\n");
@@ -1623,6 +1621,8 @@ static void sfp_sm_module(struct sfp *sf
static void sfp_sm_main(struct sfp *sfp, unsigned int event)
{
+ unsigned long timeout;
+
/* Some events are global */
if (sfp->sm_state != SFP_S_DOWN &&
(sfp->sm_mod_state != SFP_MOD_PRESENT ||
@@ -1640,17 +1640,45 @@ static void sfp_sm_main(struct sfp *sfp,
/* The main state machine */
switch (sfp->sm_state) {
case SFP_S_DOWN:
- if (sfp->sm_mod_state == SFP_MOD_PRESENT &&
- sfp->sm_dev_state == SFP_DEV_UP) {
- sfp_sm_mod_init(sfp);
- sfp_sm_probe_for_phy(sfp);
+ if (sfp->sm_mod_state != SFP_MOD_PRESENT ||
+ sfp->sm_dev_state != SFP_DEV_UP)
+ break;
+
+ sfp_sm_mod_init(sfp);
+
+ /* Initialise the fault clearance retries */
+ sfp->sm_retries = 5;
+
+ /* We need to check the TX_FAULT state, which is not defined
+ * while TX_DISABLE is asserted. The earliest we want to do
+ * anything (such as probe for a PHY) is 50ms.
+ */
+ sfp_sm_next(sfp, SFP_S_WAIT, T_WAIT);
+ break;
+
+ case SFP_S_WAIT:
+ if (event != SFP_E_TIMEOUT)
+ break;
+
+ sfp_sm_probe_for_phy(sfp);
+ if (sfp->state & SFP_F_TX_FAULT) {
/* Wait t_init before indicating that the link is up,
* provided the current state indicates no TX_FAULT. If
* TX_FAULT clears before this time, that's fine too.
*/
- sfp_sm_next(sfp, SFP_S_INIT, T_INIT_JIFFIES);
- sfp->sm_retries = 5;
+ timeout = T_INIT_JIFFIES;
+ if (timeout > T_WAIT)
+ timeout -= T_WAIT;
+ else
+ timeout = 1;
+
+ sfp_sm_next(sfp, SFP_S_INIT, timeout);
+ } else {
+ /* TX_FAULT is not asserted, assume the module has
+ * finished initialising.
+ */
+ goto init_done;
}
break;
@@ -1658,7 +1686,7 @@ static void sfp_sm_main(struct sfp *sfp,
if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT)
sfp_sm_fault(sfp, true);
else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR)
- sfp_sm_link_check_los(sfp);
+ init_done: sfp_sm_link_check_los(sfp);
break;
case SFP_S_WAIT_LOS:

69
target/linux/generic/backport-5.4/730-v5.5-net-sfp-allow-fault-processing-to-transition-to-othe.patch Normal file
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@ -0,0 +1,69 @@
From 2aa424ee7fbe43e2cd24e28c2f6388c4e1796bd2 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 18 Oct 2019 09:58:33 +0100
Subject: [PATCH 628/660] net: sfp: allow fault processing to transition to
other states
Add the next state to sfp_sm_fault() so that it can branch to other
states. This will be necessary to improve the initialisation path.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1334,7 +1334,7 @@ static bool sfp_los_event_inactive(struc
event == SFP_E_LOS_LOW);
}
-static void sfp_sm_fault(struct sfp *sfp, bool warn)
+static void sfp_sm_fault(struct sfp *sfp, unsigned int next_state, bool warn)
{
if (sfp->sm_retries && !--sfp->sm_retries) {
dev_err(sfp->dev,
@@ -1344,7 +1344,7 @@ static void sfp_sm_fault(struct sfp *sfp
if (warn)
dev_err(sfp->dev, "module transmit fault indicated\n");
- sfp_sm_next(sfp, SFP_S_TX_FAULT, T_FAULT_RECOVER);
+ sfp_sm_next(sfp, next_state, T_FAULT_RECOVER);
}
}
@@ -1684,14 +1684,14 @@ static void sfp_sm_main(struct sfp *sfp,
case SFP_S_INIT:
if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT)
- sfp_sm_fault(sfp, true);
+ sfp_sm_fault(sfp, SFP_S_TX_FAULT, true);
else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR)
init_done: sfp_sm_link_check_los(sfp);
break;
case SFP_S_WAIT_LOS:
if (event == SFP_E_TX_FAULT)
- sfp_sm_fault(sfp, true);
+ sfp_sm_fault(sfp, SFP_S_TX_FAULT, true);
else if (sfp_los_event_inactive(sfp, event))
sfp_sm_link_up(sfp);
break;
@@ -1699,7 +1699,7 @@ static void sfp_sm_main(struct sfp *sfp,
case SFP_S_LINK_UP:
if (event == SFP_E_TX_FAULT) {
sfp_sm_link_down(sfp);
- sfp_sm_fault(sfp, true);
+ sfp_sm_fault(sfp, SFP_S_TX_FAULT, true);
} else if (sfp_los_event_active(sfp, event)) {
sfp_sm_link_down(sfp);
sfp_sm_next(sfp, SFP_S_WAIT_LOS, 0);
@@ -1715,7 +1715,7 @@ static void sfp_sm_main(struct sfp *sfp,
case SFP_S_REINIT:
if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) {
- sfp_sm_fault(sfp, false);
+ sfp_sm_fault(sfp, SFP_S_TX_FAULT, false);
} else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR) {
dev_info(sfp->dev, "module transmit fault recovered\n");
sfp_sm_link_check_los(sfp);

80
target/linux/generic/backport-5.4/731-v5.5-net-sfp-ensure-TX_FAULT-has-deasserted-before-probin.patch Normal file
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@ -0,0 +1,80 @@
From 38b62a12231be4b86fc5ca5477579d29831c02a5 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 18 Oct 2019 10:31:07 +0100
Subject: [PATCH 629/660] net: sfp: ensure TX_FAULT has deasserted before
probing the PHY
TX_FAULT should be deasserted to indicate that the module has completed
its initialisation. This may include the on-board PHY, so wait until
the module has deasserted TX_FAULT before probing the PHY.
This means that we need an extra state to handle a TX_FAULT that
remains set for longer than t_init, since using the existing handling
state would bypass the PHY probe.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 31 +++++++++++++++++++++++++------
1 file changed, 25 insertions(+), 6 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -56,6 +56,7 @@ enum {
SFP_S_DOWN = 0,
SFP_S_WAIT,
SFP_S_INIT,
+ SFP_S_INIT_TX_FAULT,
SFP_S_WAIT_LOS,
SFP_S_LINK_UP,
SFP_S_TX_FAULT,
@@ -113,6 +114,7 @@ static const char * const sm_state_strin
[SFP_S_DOWN] = "down",
[SFP_S_WAIT] = "wait",
[SFP_S_INIT] = "init",
+ [SFP_S_INIT_TX_FAULT] = "init_tx_fault",
[SFP_S_WAIT_LOS] = "wait_los",
[SFP_S_LINK_UP] = "link_up",
[SFP_S_TX_FAULT] = "tx_fault",
@@ -1660,8 +1662,6 @@ static void sfp_sm_main(struct sfp *sfp,
if (event != SFP_E_TIMEOUT)
break;
- sfp_sm_probe_for_phy(sfp);
-
if (sfp->state & SFP_F_TX_FAULT) {
/* Wait t_init before indicating that the link is up,
* provided the current state indicates no TX_FAULT. If
@@ -1683,10 +1683,29 @@ static void sfp_sm_main(struct sfp *sfp,
break;
case SFP_S_INIT:
- if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT)
- sfp_sm_fault(sfp, SFP_S_TX_FAULT, true);
- else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR)
- init_done: sfp_sm_link_check_los(sfp);
+ if (event == SFP_E_TIMEOUT && sfp->state & SFP_F_TX_FAULT) {
+ /* TX_FAULT is still asserted after t_init, so assume
+ * there is a fault.
+ */
+ sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT,
+ sfp->sm_retries == 5);
+ } else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR) {
+ init_done: /* TX_FAULT deasserted or we timed out with TX_FAULT
+ * clear. Probe for the PHY and check the LOS state.
+ */
+ sfp_sm_probe_for_phy(sfp);
+ sfp_sm_link_check_los(sfp);
+
+ /* Reset the fault retry count */
+ sfp->sm_retries = 5;
+ }
+ break;
+
+ case SFP_S_INIT_TX_FAULT:
+ if (event == SFP_E_TIMEOUT) {
+ sfp_module_tx_fault_reset(sfp);
+ sfp_sm_next(sfp, SFP_S_INIT, T_INIT_JIFFIES);
+ }
break;
case SFP_S_WAIT_LOS:

153
target/linux/generic/backport-5.4/732-v5.5-net-sfp-track-upstream-s-attachment-state-in-state-m.patch Normal file
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@ -0,0 +1,153 @@
From ec6036a58f979c66bbd5cd9d0d1c783a98c2c644 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 5 Nov 2019 12:57:40 +0000
Subject: [PATCH 630/660] net: sfp: track upstream's attachment state in state
machine
Track the upstream's attachment state in the state machine rather than
maintaining a boolean, which ensures that we have a strict order of
ATTACH followed by an UP event - we can never believe that a newly
attached upstream will be anything but down.
Rearrange the order of state machines so we run the module state
machine after the upstream device's state machine, so the module state
machine can check the current state of the device and take action to
e.g. reset back to empty state when the upstream is detached.
This is to allow the module detection to run independently of the
network device becoming available.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 42 +++++++++++++++++++++++++++++-------------
1 file changed, 29 insertions(+), 13 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -36,6 +36,8 @@ enum {
SFP_E_INSERT = 0,
SFP_E_REMOVE,
+ SFP_E_DEV_ATTACH,
+ SFP_E_DEV_DETACH,
SFP_E_DEV_DOWN,
SFP_E_DEV_UP,
SFP_E_TX_FAULT,
@@ -50,7 +52,8 @@ enum {
SFP_MOD_PRESENT,
SFP_MOD_ERROR,
- SFP_DEV_DOWN = 0,
+ SFP_DEV_DETACHED = 0,
+ SFP_DEV_DOWN,
SFP_DEV_UP,
SFP_S_DOWN = 0,
@@ -80,6 +83,7 @@ static const char *mod_state_to_str(unsi
}
static const char * const dev_state_strings[] = {
+ [SFP_DEV_DETACHED] = "detached",
[SFP_DEV_DOWN] = "down",
[SFP_DEV_UP] = "up",
};
@@ -94,6 +98,8 @@ static const char *dev_state_to_str(unsi
static const char * const event_strings[] = {
[SFP_E_INSERT] = "insert",
[SFP_E_REMOVE] = "remove",
+ [SFP_E_DEV_ATTACH] = "dev_attach",
+ [SFP_E_DEV_DETACH] = "dev_detach",
[SFP_E_DEV_DOWN] = "dev_down",
[SFP_E_DEV_UP] = "dev_up",
[SFP_E_TX_FAULT] = "tx_fault",
@@ -188,7 +194,6 @@ struct sfp {
struct gpio_desc *gpio[GPIO_MAX];
int gpio_irq[GPIO_MAX];
- bool attached;
struct mutex st_mutex; /* Protects state */
unsigned int state;
struct delayed_work poll;
@@ -1559,17 +1564,26 @@ static void sfp_sm_mod_remove(struct sfp
dev_info(sfp->dev, "module removed\n");
}
-/* This state machine tracks the netdev up/down state */
+/* This state machine tracks the upstream's state */
static void sfp_sm_device(struct sfp *sfp, unsigned int event)
{
switch (sfp->sm_dev_state) {
default:
- if (event == SFP_E_DEV_UP)
+ if (event == SFP_E_DEV_ATTACH)
+ sfp->sm_dev_state = SFP_DEV_DOWN;
+ break;
+
+ case SFP_DEV_DOWN:
+ if (event == SFP_E_DEV_DETACH)
+ sfp->sm_dev_state = SFP_DEV_DETACHED;
+ else if (event == SFP_E_DEV_UP)
sfp->sm_dev_state = SFP_DEV_UP;
break;
case SFP_DEV_UP:
- if (event == SFP_E_DEV_DOWN)
+ if (event == SFP_E_DEV_DETACH)
+ sfp->sm_dev_state = SFP_DEV_DETACHED;
+ else if (event == SFP_E_DEV_DOWN)
sfp->sm_dev_state = SFP_DEV_DOWN;
break;
}
@@ -1580,17 +1594,20 @@ static void sfp_sm_device(struct sfp *sf
*/
static void sfp_sm_module(struct sfp *sfp, unsigned int event)
{
- /* Handle remove event globally, it resets this state machine */
- if (event == SFP_E_REMOVE) {
+ /* Handle remove event globally, it resets this state machine.
+ * Also deal with upstream detachment.
+ */
+ if (event == SFP_E_REMOVE || sfp->sm_dev_state < SFP_DEV_DOWN) {
if (sfp->sm_mod_state > SFP_MOD_PROBE)
sfp_sm_mod_remove(sfp);
- sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
+ if (sfp->sm_mod_state != SFP_MOD_EMPTY)
+ sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
return;
}
switch (sfp->sm_mod_state) {
default:
- if (event == SFP_E_INSERT && sfp->attached)
+ if (event == SFP_E_INSERT)
sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
break;
@@ -1756,8 +1773,8 @@ static void sfp_sm_event(struct sfp *sfp
sm_state_to_str(sfp->sm_state),
event_to_str(event));
- sfp_sm_module(sfp, event);
sfp_sm_device(sfp, event);
+ sfp_sm_module(sfp, event);
sfp_sm_main(sfp, event);
dev_dbg(sfp->dev, "SM: exit %s:%s:%s\n",
@@ -1770,15 +1787,14 @@ static void sfp_sm_event(struct sfp *sfp
static void sfp_attach(struct sfp *sfp)
{
- sfp->attached = true;
+ sfp_sm_event(sfp, SFP_E_DEV_ATTACH);
if (sfp->state & SFP_F_PRESENT)
sfp_sm_event(sfp, SFP_E_INSERT);
}
static void sfp_detach(struct sfp *sfp)
{
- sfp->attached = false;
- sfp_sm_event(sfp, SFP_E_REMOVE);
+ sfp_sm_event(sfp, SFP_E_DEV_DETACH);
}
static void sfp_start(struct sfp *sfp)

184
target/linux/generic/backport-5.4/733-v5.5-net-sfp-split-power-mode-switching-from-probe.patch Normal file
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@ -0,0 +1,184 @@
From fdff863a4ce3677907f64396e34c45025abb6600 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 5 Nov 2019 12:59:36 +0000
Subject: [PATCH 631/660] net: sfp: split power mode switching from probe
Switch the power mode switching from the probe, so that we don't
repeatedly re-probe the SFP device if there is a problem accessing
the registers at I2C address 0x51.
In splitting this out, we can also fix a bug where we leave the module
in high-power mode when the upstream device is detached but the module
is still inserted.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 101 ++++++++++++++++++++++++++----------------
1 file changed, 64 insertions(+), 37 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -49,6 +49,7 @@ enum {
SFP_MOD_EMPTY = 0,
SFP_MOD_PROBE,
SFP_MOD_HPOWER,
+ SFP_MOD_WAITPWR,
SFP_MOD_PRESENT,
SFP_MOD_ERROR,
@@ -71,6 +72,7 @@ static const char * const mod_state_str
[SFP_MOD_EMPTY] = "empty",
[SFP_MOD_PROBE] = "probe",
[SFP_MOD_HPOWER] = "hpower",
+ [SFP_MOD_WAITPWR] = "waitpwr",
[SFP_MOD_PRESENT] = "present",
[SFP_MOD_ERROR] = "error",
};
@@ -1423,37 +1425,34 @@ static int sfp_module_parse_power(struct
return 0;
}
-static int sfp_sm_mod_hpower(struct sfp *sfp)
+static int sfp_sm_mod_hpower(struct sfp *sfp, bool enable)
{
u8 val;
int err;
- if (sfp->module_power_mW <= 1000)
- return 0;
-
err = sfp_read(sfp, true, SFP_EXT_STATUS, &val, sizeof(val));
if (err != sizeof(val)) {
dev_err(sfp->dev, "Failed to read EEPROM: %d\n", err);
- err = -EAGAIN;
- goto err;
+ return -EAGAIN;
}
- val |= BIT(0);
+ if (enable)
+ val |= BIT(0);
+ else
+ val &= ~BIT(0);
err = sfp_write(sfp, true, SFP_EXT_STATUS, &val, sizeof(val));
if (err != sizeof(val)) {
dev_err(sfp->dev, "Failed to write EEPROM: %d\n", err);
- err = -EAGAIN;
- goto err;
+ return -EAGAIN;
}
- dev_info(sfp->dev, "Module switched to %u.%uW power level\n",
- sfp->module_power_mW / 1000,
- (sfp->module_power_mW / 100) % 10);
- return T_HPOWER_LEVEL;
+ if (enable)
+ dev_info(sfp->dev, "Module switched to %u.%uW power level\n",
+ sfp->module_power_mW / 1000,
+ (sfp->module_power_mW / 100) % 10);
-err:
- return err;
+ return 0;
}
static int sfp_sm_mod_probe(struct sfp *sfp)
@@ -1549,7 +1548,7 @@ static int sfp_sm_mod_probe(struct sfp *
if (ret < 0)
return ret;
- return sfp_sm_mod_hpower(sfp);
+ return 0;
}
static void sfp_sm_mod_remove(struct sfp *sfp)
@@ -1594,13 +1593,22 @@ static void sfp_sm_device(struct sfp *sf
*/
static void sfp_sm_module(struct sfp *sfp, unsigned int event)
{
- /* Handle remove event globally, it resets this state machine.
- * Also deal with upstream detachment.
- */
- if (event == SFP_E_REMOVE || sfp->sm_dev_state < SFP_DEV_DOWN) {
+ int err;
+
+ /* Handle remove event globally, it resets this state machine */
+ if (event == SFP_E_REMOVE) {
if (sfp->sm_mod_state > SFP_MOD_PROBE)
sfp_sm_mod_remove(sfp);
- if (sfp->sm_mod_state != SFP_MOD_EMPTY)
+ sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
+ return;
+ }
+
+ /* Handle device detach globally */
+ if (sfp->sm_dev_state < SFP_DEV_DOWN) {
+ if (sfp->module_power_mW > 1000 &&
+ sfp->sm_mod_state > SFP_MOD_HPOWER)
+ sfp_sm_mod_hpower(sfp, false);
+ if (sfp->sm_mod_state > SFP_MOD_EMPTY)
sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
return;
}
@@ -1612,26 +1620,45 @@ static void sfp_sm_module(struct sfp *sf
break;
case SFP_MOD_PROBE:
- if (event == SFP_E_TIMEOUT) {
- int val = sfp_sm_mod_probe(sfp);
+ if (event != SFP_E_TIMEOUT)
+ break;
- if (val == 0)
- sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0);
- else if (val > 0)
- sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, val);
- else if (val != -EAGAIN)
- sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
- else
- sfp_sm_set_timer(sfp, T_PROBE_RETRY);
+ err = sfp_sm_mod_probe(sfp);
+ if (err == -EAGAIN) {
+ sfp_sm_set_timer(sfp, T_PROBE_RETRY);
+ break;
}
- break;
+ if (err < 0) {
+ sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
+ break;
+ }
+
+ /* If this is a power level 1 module, we are done */
+ if (sfp->module_power_mW <= 1000)
+ goto insert;
+ sfp_sm_mod_next(sfp, SFP_MOD_HPOWER, 0);
+ /* fall through */
case SFP_MOD_HPOWER:
- if (event == SFP_E_TIMEOUT) {
- sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0);
+ /* Enable high power mode */
+ err = sfp_sm_mod_hpower(sfp, true);
+ if (err == 0)
+ sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL);
+ else if (err != -EAGAIN)
+ sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
+ else
+ sfp_sm_set_timer(sfp, T_PROBE_RETRY);
+ break;
+
+ case SFP_MOD_WAITPWR:
+ /* Wait for T_HPOWER_LEVEL to time out */
+ if (event != SFP_E_TIMEOUT)
break;
- }
- /* fallthrough */
+
+ insert:
+ sfp_sm_mod_next(sfp, SFP_MOD_PRESENT, 0);
+ break;
+
case SFP_MOD_PRESENT:
case SFP_MOD_ERROR:
break;

159
target/linux/generic/backport-5.4/734-v5.5-net-sfp-move-module-insert-reporting-out-of-probe.patch Normal file
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@ -0,0 +1,159 @@
From 57cbf7453551db1df619b79410d79fc418d862d5 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 5 Nov 2019 13:00:45 +0000
Subject: [PATCH 632/660] net: sfp: move module insert reporting out of probe
Move the module insertion reporting out of the probe handling, but
after we have detected that the upstream has attached (since that is
whom we are reporting insertion to.)
Only report module removal if we had previously reported a module
insertion.
This gives cleaner semantics, and means we can probe the module before
we have an upstream attached.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 58 +++++++++++++++++++++++++++++--------------
1 file changed, 40 insertions(+), 18 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -47,11 +47,12 @@ enum {
SFP_E_TIMEOUT,
SFP_MOD_EMPTY = 0,
+ SFP_MOD_ERROR,
SFP_MOD_PROBE,
+ SFP_MOD_WAITDEV,
SFP_MOD_HPOWER,
SFP_MOD_WAITPWR,
SFP_MOD_PRESENT,
- SFP_MOD_ERROR,
SFP_DEV_DETACHED = 0,
SFP_DEV_DOWN,
@@ -70,11 +71,12 @@ enum {
static const char * const mod_state_strings[] = {
[SFP_MOD_EMPTY] = "empty",
+ [SFP_MOD_ERROR] = "error",
[SFP_MOD_PROBE] = "probe",
+ [SFP_MOD_WAITDEV] = "waitdev",
[SFP_MOD_HPOWER] = "hpower",
[SFP_MOD_WAITPWR] = "waitpwr",
[SFP_MOD_PRESENT] = "present",
- [SFP_MOD_ERROR] = "error",
};
static const char *mod_state_to_str(unsigned short mod_state)
@@ -1544,16 +1546,13 @@ static int sfp_sm_mod_probe(struct sfp *
if (ret < 0)
return ret;
- ret = sfp_module_insert(sfp->sfp_bus, &sfp->id);
- if (ret < 0)
- return ret;
-
return 0;
}
static void sfp_sm_mod_remove(struct sfp *sfp)
{
- sfp_module_remove(sfp->sfp_bus);
+ if (sfp->sm_mod_state > SFP_MOD_WAITDEV)
+ sfp_module_remove(sfp->sfp_bus);
sfp_hwmon_remove(sfp);
@@ -1604,12 +1603,12 @@ static void sfp_sm_module(struct sfp *sf
}
/* Handle device detach globally */
- if (sfp->sm_dev_state < SFP_DEV_DOWN) {
+ if (sfp->sm_dev_state < SFP_DEV_DOWN &&
+ sfp->sm_mod_state > SFP_MOD_WAITDEV) {
if (sfp->module_power_mW > 1000 &&
sfp->sm_mod_state > SFP_MOD_HPOWER)
sfp_sm_mod_hpower(sfp, false);
- if (sfp->sm_mod_state > SFP_MOD_EMPTY)
- sfp_sm_mod_next(sfp, SFP_MOD_EMPTY, 0);
+ sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0);
return;
}
@@ -1620,6 +1619,7 @@ static void sfp_sm_module(struct sfp *sf
break;
case SFP_MOD_PROBE:
+ /* Wait for T_PROBE_INIT to time out */
if (event != SFP_E_TIMEOUT)
break;
@@ -1633,6 +1633,20 @@ static void sfp_sm_module(struct sfp *sf
break;
}
+ sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0);
+ /* fall through */
+ case SFP_MOD_WAITDEV:
+ /* Ensure that the device is attached before proceeding */
+ if (sfp->sm_dev_state < SFP_DEV_DOWN)
+ break;
+
+ /* Report the module insertion to the upstream device */
+ err = sfp_module_insert(sfp->sfp_bus, &sfp->id);
+ if (err < 0) {
+ sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
+ break;
+ }
+
/* If this is a power level 1 module, we are done */
if (sfp->module_power_mW <= 1000)
goto insert;
@@ -1642,12 +1656,17 @@ static void sfp_sm_module(struct sfp *sf
case SFP_MOD_HPOWER:
/* Enable high power mode */
err = sfp_sm_mod_hpower(sfp, true);
- if (err == 0)
- sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL);
- else if (err != -EAGAIN)
- sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
- else
- sfp_sm_set_timer(sfp, T_PROBE_RETRY);
+ if (err < 0) {
+ if (err != -EAGAIN) {
+ sfp_module_remove(sfp->sfp_bus);
+ sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
+ } else {
+ sfp_sm_set_timer(sfp, T_PROBE_RETRY);
+ }
+ break;
+ }
+
+ sfp_sm_mod_next(sfp, SFP_MOD_WAITPWR, T_HPOWER_LEVEL);
break;
case SFP_MOD_WAITPWR:
@@ -1815,8 +1834,6 @@ static void sfp_sm_event(struct sfp *sfp
static void sfp_attach(struct sfp *sfp)
{
sfp_sm_event(sfp, SFP_E_DEV_ATTACH);
- if (sfp->state & SFP_F_PRESENT)
- sfp_sm_event(sfp, SFP_E_INSERT);
}
static void sfp_detach(struct sfp *sfp)
@@ -2084,6 +2101,11 @@ static int sfp_probe(struct platform_dev
sfp->state |= SFP_F_RATE_SELECT;
sfp_set_state(sfp, sfp->state);
sfp_module_tx_disable(sfp);
+ if (sfp->state & SFP_F_PRESENT) {
+ rtnl_lock();
+ sfp_sm_event(sfp, SFP_E_INSERT);
+ rtnl_unlock();
+ }
for (i = 0; i < GPIO_MAX; i++) {
if (gpio_flags[i] != GPIOD_IN || !sfp->gpio[i])

110
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@ -0,0 +1,110 @@
From fb56cd08880aff8fb030e684fa4311bef712a499 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 5 Nov 2019 13:02:30 +0000
Subject: [PATCH 633/660] net: sfp: allow sfp to probe slow to initialise GPON
modules
Some GPON modules (e.g. Huawei MA5671A) take a significant amount of
time to start responding on the I2C bus, contary to the SFF
specifications.
Work around this by implementing a two-level timeout strategy, where
we initially quickly retry for the module, and then use a slower retry
after we exceed a maximum number of quick attempts.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 38 ++++++++++++++++++++++++++++----------
1 file changed, 28 insertions(+), 10 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -167,9 +167,12 @@ static const enum gpiod_flags gpio_flags
* The SFF-8472 specifies t_serial ("Time from power on until module is
* ready for data transmission over the two wire serial bus.") as 300ms.
*/
-#define T_SERIAL msecs_to_jiffies(300)
-#define T_HPOWER_LEVEL msecs_to_jiffies(300)
-#define T_PROBE_RETRY msecs_to_jiffies(100)
+#define T_SERIAL msecs_to_jiffies(300)
+#define T_HPOWER_LEVEL msecs_to_jiffies(300)
+#define T_PROBE_RETRY_INIT msecs_to_jiffies(100)
+#define R_PROBE_RETRY_INIT 10
+#define T_PROBE_RETRY_SLOW msecs_to_jiffies(5000)
+#define R_PROBE_RETRY_SLOW 12
/* SFP modules appear to always have their PHY configured for bus address
* 0x56 (which with mdio-i2c, translates to a PHY address of 22).
@@ -204,6 +207,8 @@ struct sfp {
struct delayed_work timeout;
struct mutex sm_mutex; /* Protects state machine */
unsigned char sm_mod_state;
+ unsigned char sm_mod_tries_init;
+ unsigned char sm_mod_tries;
unsigned char sm_dev_state;
unsigned short sm_state;
unsigned int sm_retries;
@@ -1457,7 +1462,7 @@ static int sfp_sm_mod_hpower(struct sfp
return 0;
}
-static int sfp_sm_mod_probe(struct sfp *sfp)
+static int sfp_sm_mod_probe(struct sfp *sfp, bool report)
{
/* SFP module inserted - read I2C data */
struct sfp_eeprom_id id;
@@ -1467,7 +1472,8 @@ static int sfp_sm_mod_probe(struct sfp *
ret = sfp_read(sfp, false, 0, &id, sizeof(id));
if (ret < 0) {
- dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret);
+ if (report)
+ dev_err(sfp->dev, "failed to read EEPROM: %d\n", ret);
return -EAGAIN;
}
@@ -1614,8 +1620,11 @@ static void sfp_sm_module(struct sfp *sf
switch (sfp->sm_mod_state) {
default:
- if (event == SFP_E_INSERT)
+ if (event == SFP_E_INSERT) {
sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
+ sfp->sm_mod_tries_init = R_PROBE_RETRY_INIT;
+ sfp->sm_mod_tries = R_PROBE_RETRY_SLOW;
+ }
break;
case SFP_MOD_PROBE:
@@ -1623,10 +1632,19 @@ static void sfp_sm_module(struct sfp *sf
if (event != SFP_E_TIMEOUT)
break;
- err = sfp_sm_mod_probe(sfp);
+ err = sfp_sm_mod_probe(sfp, sfp->sm_mod_tries == 1);
if (err == -EAGAIN) {
- sfp_sm_set_timer(sfp, T_PROBE_RETRY);
- break;
+ if (sfp->sm_mod_tries_init &&
+ --sfp->sm_mod_tries_init) {
+ sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT);
+ break;
+ } else if (sfp->sm_mod_tries && --sfp->sm_mod_tries) {
+ if (sfp->sm_mod_tries == R_PROBE_RETRY_SLOW - 1)
+ dev_warn(sfp->dev,
+ "please wait, module slow to respond\n");
+ sfp_sm_set_timer(sfp, T_PROBE_RETRY_SLOW);
+ break;
+ }
}
if (err < 0) {
sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
@@ -1661,7 +1679,7 @@ static void sfp_sm_module(struct sfp *sf
sfp_module_remove(sfp->sfp_bus);
sfp_sm_mod_next(sfp, SFP_MOD_ERROR, 0);
} else {
- sfp_sm_set_timer(sfp, T_PROBE_RETRY);
+ sfp_sm_set_timer(sfp, T_PROBE_RETRY_INIT);
}
break;
}

198
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From 559391fc20fae506adcb311b904cc544c76436c0 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Thu, 7 Nov 2019 18:52:07 +0000
Subject: [PATCH 634/660] net: sfp: allow modules with slow diagnostics to
probe
When a module is inserted, we attempt to read read the ID from address
0x50. Once we are able to read the ID, we immediately attempt to
initialise the hwmon support by reading from address 0x51. If this
fails, then we fall into error state, and assume that the module is
not usable.
Modules such as the ALCATELLUCENT 3FE46541AA use a real EEPROM for
I2C address 0x50, which responds immediately. However, address 0x51
is an emulated, which only becomes available once the on-board firmware
has booted. This prompts us to fall into the error state.
Since the module may be usable without diagnostics, arrange for the
hwmon probe independent of the rest of the SFP itself, retrying every
5s for up to about 60s for the monitoring to become available, and
print an error message if it doesn't become available.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 96 +++++++++++++++++++++++++++++++++----------
1 file changed, 74 insertions(+), 22 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -218,6 +218,8 @@ struct sfp {
#if IS_ENABLED(CONFIG_HWMON)
struct sfp_diag diag;
+ struct delayed_work hwmon_probe;
+ unsigned int hwmon_tries;
struct device *hwmon_dev;
char *hwmon_name;
#endif
@@ -1159,29 +1161,27 @@ static const struct hwmon_chip_info sfp_
.info = sfp_hwmon_info,
};
-static int sfp_hwmon_insert(struct sfp *sfp)
+static void sfp_hwmon_probe(struct work_struct *work)
{
+ struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work);
int err, i;
- if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE)
- return 0;
-
- if (!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM))
- return 0;
-
- if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)
- /* This driver in general does not support address
- * change.
- */
- return 0;
-
err = sfp_read(sfp, true, 0, &sfp->diag, sizeof(sfp->diag));
- if (err < 0)
- return err;
+ if (err < 0) {
+ if (sfp->hwmon_tries--) {
+ mod_delayed_work(system_wq, &sfp->hwmon_probe,
+ T_PROBE_RETRY_SLOW);
+ } else {
+ dev_warn(sfp->dev, "hwmon probe failed: %d\n", err);
+ }
+ return;
+ }
sfp->hwmon_name = kstrdup(dev_name(sfp->dev), GFP_KERNEL);
- if (!sfp->hwmon_name)
- return -ENODEV;
+ if (!sfp->hwmon_name) {
+ dev_err(sfp->dev, "out of memory for hwmon name\n");
+ return;
+ }
for (i = 0; sfp->hwmon_name[i]; i++)
if (hwmon_is_bad_char(sfp->hwmon_name[i]))
@@ -1191,18 +1191,52 @@ static int sfp_hwmon_insert(struct sfp *
sfp->hwmon_name, sfp,
&sfp_hwmon_chip_info,
NULL);
+ if (IS_ERR(sfp->hwmon_dev))
+ dev_err(sfp->dev, "failed to register hwmon device: %ld\n",
+ PTR_ERR(sfp->hwmon_dev));
+}
+
+static int sfp_hwmon_insert(struct sfp *sfp)
+{
+ if (sfp->id.ext.sff8472_compliance == SFP_SFF8472_COMPLIANCE_NONE)
+ return 0;
+
+ if (!(sfp->id.ext.diagmon & SFP_DIAGMON_DDM))
+ return 0;
+
+ if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE)
+ /* This driver in general does not support address
+ * change.
+ */
+ return 0;
+
+ mod_delayed_work(system_wq, &sfp->hwmon_probe, 1);
+ sfp->hwmon_tries = R_PROBE_RETRY_SLOW;
- return PTR_ERR_OR_ZERO(sfp->hwmon_dev);
+ return 0;
}
static void sfp_hwmon_remove(struct sfp *sfp)
{
+ cancel_delayed_work_sync(&sfp->hwmon_probe);
if (!IS_ERR_OR_NULL(sfp->hwmon_dev)) {
hwmon_device_unregister(sfp->hwmon_dev);
sfp->hwmon_dev = NULL;
kfree(sfp->hwmon_name);
}
}
+
+static int sfp_hwmon_init(struct sfp *sfp)
+{
+ INIT_DELAYED_WORK(&sfp->hwmon_probe, sfp_hwmon_probe);
+
+ return 0;
+}
+
+static void sfp_hwmon_exit(struct sfp *sfp)
+{
+ cancel_delayed_work_sync(&sfp->hwmon_probe);
+}
#else
static int sfp_hwmon_insert(struct sfp *sfp)
{
@@ -1212,6 +1246,15 @@ static int sfp_hwmon_insert(struct sfp *
static void sfp_hwmon_remove(struct sfp *sfp)
{
}
+
+static int sfp_hwmon_init(struct sfp *sfp)
+{
+ return 0;
+}
+
+static void sfp_hwmon_exit(struct sfp *sfp)
+{
+}
#endif
/* Helpers */
@@ -1548,10 +1591,6 @@ static int sfp_sm_mod_probe(struct sfp *
if (ret < 0)
return ret;
- ret = sfp_hwmon_insert(sfp);
- if (ret < 0)
- return ret;
-
return 0;
}
@@ -1700,6 +1739,15 @@ static void sfp_sm_module(struct sfp *sf
case SFP_MOD_ERROR:
break;
}
+
+#if IS_ENABLED(CONFIG_HWMON)
+ if (sfp->sm_mod_state >= SFP_MOD_WAITDEV &&
+ IS_ERR_OR_NULL(sfp->hwmon_dev)) {
+ err = sfp_hwmon_insert(sfp);
+ if (err)
+ dev_warn(sfp->dev, "hwmon probe failed: %d\n", err);
+ }
+#endif
}
static void sfp_sm_main(struct sfp *sfp, unsigned int event)
@@ -2001,6 +2049,8 @@ static struct sfp *sfp_alloc(struct devi
INIT_DELAYED_WORK(&sfp->poll, sfp_poll);
INIT_DELAYED_WORK(&sfp->timeout, sfp_timeout);
+ sfp_hwmon_init(sfp);
+
return sfp;
}
@@ -2008,6 +2058,8 @@ static void sfp_cleanup(void *data)
{
struct sfp *sfp = data;
+ sfp_hwmon_exit(sfp);
+
cancel_delayed_work_sync(&sfp->poll);
cancel_delayed_work_sync(&sfp->timeout);
if (sfp->i2c_mii) {

183
target/linux/generic/backport-5.4/737-v5.5-net-phy-add-core-phylib-sfp-support.patch Normal file
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@ -0,0 +1,183 @@
From eb156db588ac583cdae7b91eaac9c0ad3a358e63 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Sun, 15 Sep 2019 20:05:34 +0100
Subject: [PATCH 635/660] net: phy: add core phylib sfp support
Add core phylib help for supporting SFP sockets on PHYs. This provides
a mechanism to inform the SFP layer about PHY up/down events, and also
unregister the SFP bus when the PHY is going away.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/phy.c | 7 ++++
drivers/net/phy/phy_device.c | 66 ++++++++++++++++++++++++++++++++++++
include/linux/phy.h | 11 ++++++
3 files changed, 84 insertions(+)
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -23,6 +23,7 @@
#include <linux/ethtool.h>
#include <linux/phy.h>
#include <linux/phy_led_triggers.h>
+#include <linux/sfp.h>
#include <linux/workqueue.h>
#include <linux/mdio.h>
#include <linux/io.h>
@@ -842,6 +843,9 @@ void phy_stop(struct phy_device *phydev)
mutex_lock(&phydev->lock);
+ if (phydev->sfp_bus)
+ sfp_upstream_stop(phydev->sfp_bus);
+
phydev->state = PHY_HALTED;
mutex_unlock(&phydev->lock);
@@ -904,6 +908,9 @@ void phy_state_machine(struct work_struc
old_state = phydev->state;
+ if (phydev->sfp_bus)
+ sfp_upstream_start(phydev->sfp_bus);
+
switch (phydev->state) {
case PHY_DOWN:
case PHY_READY:
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -27,6 +27,7 @@
#include <linux/bitmap.h>
#include <linux/phy.h>
#include <linux/phy_led_triggers.h>
+#include <linux/sfp.h>
#include <linux/mdio.h>
#include <linux/io.h>
#include <linux/uaccess.h>
@@ -1183,6 +1184,65 @@ phy_standalone_show(struct device *dev,
static DEVICE_ATTR_RO(phy_standalone);
/**
+ * phy_sfp_attach - attach the SFP bus to the PHY upstream network device
+ * @upstream: pointer to the phy device
+ * @bus: sfp bus representing cage being attached
+ *
+ * This is used to fill in the sfp_upstream_ops .attach member.
+ */
+void phy_sfp_attach(void *upstream, struct sfp_bus *bus)
+{
+ struct phy_device *phydev = upstream;
+
+ if (phydev->attached_dev)
+ phydev->attached_dev->sfp_bus = bus;
+ phydev->sfp_bus_attached = true;
+}
+EXPORT_SYMBOL(phy_sfp_attach);
+
+/**
+ * phy_sfp_detach - detach the SFP bus from the PHY upstream network device
+ * @upstream: pointer to the phy device
+ * @bus: sfp bus representing cage being attached
+ *
+ * This is used to fill in the sfp_upstream_ops .detach member.
+ */
+void phy_sfp_detach(void *upstream, struct sfp_bus *bus)
+{
+ struct phy_device *phydev = upstream;
+
+ if (phydev->attached_dev)
+ phydev->attached_dev->sfp_bus = NULL;
+ phydev->sfp_bus_attached = false;
+}
+EXPORT_SYMBOL(phy_sfp_detach);
+
+/**
+ * phy_sfp_probe - probe for a SFP cage attached to this PHY device
+ * @phydev: Pointer to phy_device
+ * @ops: SFP's upstream operations
+ */
+int phy_sfp_probe(struct phy_device *phydev,
+ const struct sfp_upstream_ops *ops)
+{
+ struct sfp_bus *bus;
+ int ret;
+
+ if (phydev->mdio.dev.fwnode) {
+ bus = sfp_bus_find_fwnode(phydev->mdio.dev.fwnode);
+ if (IS_ERR(bus))
+ return PTR_ERR(bus);
+
+ phydev->sfp_bus = bus;
+
+ ret = sfp_bus_add_upstream(bus, phydev, ops);
+ sfp_bus_put(bus);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(phy_sfp_probe);
+
+/**
* phy_attach_direct - attach a network device to a given PHY device pointer
* @dev: network device to attach
* @phydev: Pointer to phy_device to attach
@@ -1259,6 +1319,9 @@ int phy_attach_direct(struct net_device
dev->phydev = phydev;
}
+ if (phydev->sfp_bus_attached)
+ dev->sfp_bus = phydev->sfp_bus;
+
/* Some Ethernet drivers try to connect to a PHY device before
* calling register_netdevice() -> netdev_register_kobject() and
* does the dev->dev.kobj initialization. Here we only check for
@@ -2287,6 +2350,9 @@ static int phy_remove(struct device *dev
phydev->state = PHY_DOWN;
mutex_unlock(&phydev->lock);
+ sfp_bus_del_upstream(phydev->sfp_bus);
+ phydev->sfp_bus = NULL;
+
if (phydev->drv && phydev->drv->remove) {
phydev->drv->remove(phydev);
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -203,6 +203,8 @@ static inline const char *phy_modes(phy_
struct device;
struct phylink;
+struct sfp_bus;
+struct sfp_upstream_ops;
struct sk_buff;
/*
@@ -343,6 +345,8 @@ struct phy_c45_device_ids {
* dev_flags: Device-specific flags used by the PHY driver.
* irq: IRQ number of the PHY's interrupt (-1 if none)
* phy_timer: The timer for handling the state machine
+ * sfp_bus_attached: flag indicating whether the SFP bus has been attached
+ * sfp_bus: SFP bus attached to this PHY's fiber port
* attached_dev: The attached enet driver's device instance ptr
* adjust_link: Callback for the enet controller to respond to
* changes in the link state.
@@ -434,6 +438,9 @@ struct phy_device {
struct mutex lock;
+ /* This may be modified under the rtnl lock */
+ bool sfp_bus_attached;
+ struct sfp_bus *sfp_bus;
struct phylink *phylink;
struct net_device *attached_dev;
@@ -1023,6 +1030,10 @@ int phy_suspend(struct phy_device *phyde
int phy_resume(struct phy_device *phydev);
int __phy_resume(struct phy_device *phydev);
int phy_loopback(struct phy_device *phydev, bool enable);
+void phy_sfp_attach(void *upstream, struct sfp_bus *bus);
+void phy_sfp_detach(void *upstream, struct sfp_bus *bus);
+int phy_sfp_probe(struct phy_device *phydev,
+ const struct sfp_upstream_ops *ops);
struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
phy_interface_t interface);
struct phy_device *phy_find_first(struct mii_bus *bus);

67
target/linux/generic/backport-5.4/738-v5.5-net-phy-marvell10g-add-SFP-support.patch Normal file
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@ -0,0 +1,67 @@
From 0836d9fb41ed90090ef4af0d7abe784ee7706f80 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 14 Apr 2017 14:21:25 +0100
Subject: [PATCH 636/660] net: phy: marvell10g: add SFP+ support
Add support for SFP+ cages to the Marvell 10G PHY driver. This is
slightly complicated by the way phylib works in that we need to use
a multi-step process to attach the SFP bus, and we also need to track
the phylink state machine to know when the module's transmit disable
signal should change state.
With appropriate DT changes, this allows the SFP+ canges on the
Macchiatobin platform to be functional.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/marvell10g.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -26,6 +26,7 @@
#include <linux/hwmon.h>
#include <linux/marvell_phy.h>
#include <linux/phy.h>
+#include <linux/sfp.h>
#define MV_PHY_ALASKA_NBT_QUIRK_MASK 0xfffffffe
#define MV_PHY_ALASKA_NBT_QUIRK_REV (MARVELL_PHY_ID_88X3310 | 0xa)
@@ -206,6 +207,28 @@ static int mv3310_hwmon_probe(struct phy
}
#endif
+static int mv3310_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
+{
+ struct phy_device *phydev = upstream;
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
+ phy_interface_t iface;
+
+ sfp_parse_support(phydev->sfp_bus, id, support);
+ iface = sfp_select_interface(phydev->sfp_bus, id, support);
+
+ if (iface != PHY_INTERFACE_MODE_10GKR) {
+ dev_err(&phydev->mdio.dev, "incompatible SFP module inserted\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static const struct sfp_upstream_ops mv3310_sfp_ops = {
+ .attach = phy_sfp_attach,
+ .detach = phy_sfp_detach,
+ .module_insert = mv3310_sfp_insert,
+};
+
static int mv3310_probe(struct phy_device *phydev)
{
struct mv3310_priv *priv;
@@ -236,7 +259,7 @@ static int mv3310_probe(struct phy_devic
if (ret)
return ret;
- return 0;
+ return phy_sfp_probe(phydev, &mv3310_sfp_ops);
}
static int mv3310_suspend(struct phy_device *phydev)

43
target/linux/generic/backport-5.4/739-v5.5-net-phylink-update-to-use-phy_support_asym_pause.patch Normal file
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@ -0,0 +1,43 @@
From 09d7d8395ec61fba4392b35baa6f71c4e36489df Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2019 15:18:02 +0000
Subject: [PATCH 637/660] net: phylink: update to use phy_support_asym_pause()
Use phy_support_asym_pause() rather than open-coding it.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/phylink.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -718,11 +718,6 @@ static int phylink_bringup_phy(struct ph
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
int ret;
- memset(&config, 0, sizeof(config));
- linkmode_copy(supported, phy->supported);
- linkmode_copy(config.advertising, phy->advertising);
- config.interface = pl->link_config.interface;
-
/*
* This is the new way of dealing with flow control for PHYs,
* as described by Timur Tabi in commit 529ed1275263 ("net: phy:
@@ -730,10 +725,12 @@ static int phylink_bringup_phy(struct ph
* using our validate call to the MAC, we rely upon the MAC
* clearing the bits from both supported and advertising fields.
*/
- if (phylink_test(supported, Pause))
- phylink_set(config.advertising, Pause);
- if (phylink_test(supported, Asym_Pause))
- phylink_set(config.advertising, Asym_Pause);
+ phy_support_asym_pause(phy);
+
+ memset(&config, 0, sizeof(config));
+ linkmode_copy(supported, phy->supported);
+ linkmode_copy(config.advertising, phy->advertising);
+ config.interface = pl->link_config.interface;
ret = phylink_validate(pl, supported, &config);
if (ret)

111
target/linux/generic/backport-5.4/742-v5.5-net-sfp-add-support-for-module-quirks.patch Normal file
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@ -0,0 +1,111 @@
From 8df5dd55cef48c0769379e04dbc085a899b106d4 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Mar 2019 14:02:25 +0000
Subject: [PATCH 640/660] net: sfp: add support for module quirks
Add support for applying module quirks to the list of supported
ethtool link modes.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp-bus.c | 54 +++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -10,6 +10,12 @@
#include "sfp.h"
+struct sfp_quirk {
+ const char *vendor;
+ const char *part;
+ void (*modes)(const struct sfp_eeprom_id *id, unsigned long *modes);
+};
+
/**
* struct sfp_bus - internal representation of a sfp bus
*/
@@ -22,6 +28,7 @@ struct sfp_bus {
const struct sfp_socket_ops *socket_ops;
struct device *sfp_dev;
struct sfp *sfp;
+ const struct sfp_quirk *sfp_quirk;
const struct sfp_upstream_ops *upstream_ops;
void *upstream;
@@ -31,6 +38,46 @@ struct sfp_bus {
bool started;
};
+static const struct sfp_quirk sfp_quirks[] = {
+};
+
+static size_t sfp_strlen(const char *str, size_t maxlen)
+{
+ size_t size, i;
+
+ /* Trailing characters should be filled with space chars */
+ for (i = 0, size = 0; i < maxlen; i++)
+ if (str[i] != ' ')
+ size = i + 1;
+
+ return size;
+}
+
+static bool sfp_match(const char *qs, const char *str, size_t len)
+{
+ if (!qs)
+ return true;
+ if (strlen(qs) != len)
+ return false;
+ return !strncmp(qs, str, len);
+}
+
+static const struct sfp_quirk *sfp_lookup_quirk(const struct sfp_eeprom_id *id)
+{
+ const struct sfp_quirk *q;
+ unsigned int i;
+ size_t vs, ps;
+
+ vs = sfp_strlen(id->base.vendor_name, ARRAY_SIZE(id->base.vendor_name));
+ ps = sfp_strlen(id->base.vendor_pn, ARRAY_SIZE(id->base.vendor_pn));
+
+ for (i = 0, q = sfp_quirks; i < ARRAY_SIZE(sfp_quirks); i++, q++)
+ if (sfp_match(q->vendor, id->base.vendor_name, vs) &&
+ sfp_match(q->part, id->base.vendor_pn, ps))
+ return q;
+
+ return NULL;
+}
/**
* sfp_parse_port() - Parse the EEPROM base ID, setting the port type
* @bus: a pointer to the &struct sfp_bus structure for the sfp module
@@ -234,6 +281,9 @@ void sfp_parse_support(struct sfp_bus *b
phylink_set(modes, 1000baseX_Full);
}
+ if (bus->sfp_quirk)
+ bus->sfp_quirk->modes(id, modes);
+
bitmap_or(support, support, modes, __ETHTOOL_LINK_MODE_MASK_NBITS);
phylink_set(support, Autoneg);
@@ -610,6 +660,8 @@ int sfp_module_insert(struct sfp_bus *bu
const struct sfp_upstream_ops *ops = sfp_get_upstream_ops(bus);
int ret = 0;
+ bus->sfp_quirk = sfp_lookup_quirk(id);
+
if (ops && ops->module_insert)
ret = ops->module_insert(bus->upstream, id);
@@ -623,6 +675,8 @@ void sfp_module_remove(struct sfp_bus *b
if (ops && ops->module_remove)
ops->module_remove(bus->upstream);
+
+ bus->sfp_quirk = NULL;
}
EXPORT_SYMBOL_GPL(sfp_module_remove);

52
target/linux/generic/backport-5.4/743-v5.5-net-sfp-add-some-quirks-for-GPON-modules.patch Normal file
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@ -0,0 +1,52 @@
From ecaa542cfed078dbc356dadff0bad4b6a8e704a0 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 17 May 2019 10:14:45 +0100
Subject: [PATCH 641/660] net: sfp: add some quirks for GPON modules
Marc Micalizzi reports that Huawei MA5671A and Alcatel/Lucent G-010S-P
modules are capable of 2500base-X, but incorrectly report their
capabilities in the EEPROM. It seems rather common that GPON modules
mis-report.
Let's fix these modules by adding some quirks.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp-bus.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -38,7 +38,32 @@ struct sfp_bus {
bool started;
};
+static void sfp_quirk_2500basex(const struct sfp_eeprom_id *id,
+ unsigned long *modes)
+{
+ phylink_set(modes, 2500baseX_Full);
+}
+
static const struct sfp_quirk sfp_quirks[] = {
+ {
+ // Alcatel Lucent G-010S-P can operate at 2500base-X, but
+ // incorrectly report 2500MBd NRZ in their EEPROM
+ .vendor = "ALCATELLUCENT",
+ .part = "G010SP",
+ .modes = sfp_quirk_2500basex,
+ }, {
+ // Alcatel Lucent G-010S-A can operate at 2500base-X, but
+ // report 3.2GBd NRZ in their EEPROM
+ .vendor = "ALCATELLUCENT",
+ .part = "3FE46541AA",
+ .modes = sfp_quirk_2500basex,
+ }, {
+ // Huawei MA5671A can operate at 2500base-X, but report 1.2GBd
+ // NRZ in their EEPROM
+ .vendor = "HUAWEI",
+ .part = "MA5671A",
+ .modes = sfp_quirk_2500basex,
+ },
};
static size_t sfp_strlen(const char *str, size_t maxlen)

225
target/linux/generic/backport-5.4/744-v5.5-net-sfp-soft-status-and-control-support.patch Normal file
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@ -0,0 +1,225 @@
From 40e0b3b15f7da92e6b065292b14af7b9bfb1c6e0 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 13 Sep 2019 23:00:35 +0100
Subject: [PATCH 642/660] net: sfp: soft status and control support
Add support for the soft status and control register, which allows
TX_FAULT and RX_LOS to be monitored and TX_DISABLE to be set. We
make use of this when the board does not support GPIOs for these
signals.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 110 ++++++++++++++++++++++++++++++++++--------
include/linux/sfp.h | 4 ++
2 files changed, 94 insertions(+), 20 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -201,7 +201,10 @@ struct sfp {
struct gpio_desc *gpio[GPIO_MAX];
int gpio_irq[GPIO_MAX];
+ bool need_poll;
+
struct mutex st_mutex; /* Protects state */
+ unsigned int state_soft_mask;
unsigned int state;
struct delayed_work poll;
struct delayed_work timeout;
@@ -395,24 +398,90 @@ static int sfp_i2c_configure(struct sfp
}
/* Interface */
-static unsigned int sfp_get_state(struct sfp *sfp)
+static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
{
- return sfp->get_state(sfp);
+ return sfp->read(sfp, a2, addr, buf, len);
}
-static void sfp_set_state(struct sfp *sfp, unsigned int state)
+static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
{
- sfp->set_state(sfp, state);
+ return sfp->write(sfp, a2, addr, buf, len);
}
-static int sfp_read(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
+static unsigned int sfp_soft_get_state(struct sfp *sfp)
{
- return sfp->read(sfp, a2, addr, buf, len);
+ unsigned int state = 0;
+ u8 status;
+
+ if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) ==
+ sizeof(status)) {
+ if (status & SFP_STATUS_RX_LOS)
+ state |= SFP_F_LOS;
+ if (status & SFP_STATUS_TX_FAULT)
+ state |= SFP_F_TX_FAULT;
+ }
+
+ return state & sfp->state_soft_mask;
}
-static int sfp_write(struct sfp *sfp, bool a2, u8 addr, void *buf, size_t len)
+static void sfp_soft_set_state(struct sfp *sfp, unsigned int state)
{
- return sfp->write(sfp, a2, addr, buf, len);
+ u8 status;
+
+ if (sfp_read(sfp, true, SFP_STATUS, &status, sizeof(status)) ==
+ sizeof(status)) {
+ if (state & SFP_F_TX_DISABLE)
+ status |= SFP_STATUS_TX_DISABLE_FORCE;
+ else
+ status &= ~SFP_STATUS_TX_DISABLE_FORCE;
+
+ sfp_write(sfp, true, SFP_STATUS, &status, sizeof(status));
+ }
+}
+
+static void sfp_soft_start_poll(struct sfp *sfp)
+{
+ const struct sfp_eeprom_id *id = &sfp->id;
+
+ sfp->state_soft_mask = 0;
+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE &&
+ !sfp->gpio[GPIO_TX_DISABLE])
+ sfp->state_soft_mask |= SFP_F_TX_DISABLE;
+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT &&
+ !sfp->gpio[GPIO_TX_FAULT])
+ sfp->state_soft_mask |= SFP_F_TX_FAULT;
+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS &&
+ !sfp->gpio[GPIO_LOS])
+ sfp->state_soft_mask |= SFP_F_LOS;
+
+ if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) &&
+ !sfp->need_poll)
+ mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
+}
+
+static void sfp_soft_stop_poll(struct sfp *sfp)
+{
+ sfp->state_soft_mask = 0;
+}
+
+static unsigned int sfp_get_state(struct sfp *sfp)
+{
+ unsigned int state = sfp->get_state(sfp);
+
+ if (state & SFP_F_PRESENT &&
+ sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT))
+ state |= sfp_soft_get_state(sfp);
+
+ return state;
+}
+
+static void sfp_set_state(struct sfp *sfp, unsigned int state)
+{
+ sfp->set_state(sfp, state);
+
+ if (state & SFP_F_PRESENT &&
+ sfp->state_soft_mask & SFP_F_TX_DISABLE)
+ sfp_soft_set_state(sfp, state);
}
static unsigned int sfp_check(void *buf, size_t len)
@@ -1407,11 +1476,6 @@ static void sfp_sm_fault(struct sfp *sfp
}
}
-static void sfp_sm_mod_init(struct sfp *sfp)
-{
- sfp_module_tx_enable(sfp);
-}
-
static void sfp_sm_probe_for_phy(struct sfp *sfp)
{
/* Setting the serdes link mode is guesswork: there's no
@@ -1574,7 +1638,7 @@ static int sfp_sm_mod_probe(struct sfp *
(int)sizeof(id.ext.datecode), id.ext.datecode);
/* Check whether we support this module */
- if (!sfp->type->module_supported(&sfp->id)) {
+ if (!sfp->type->module_supported(&id)) {
dev_err(sfp->dev,
"module is not supported - phys id 0x%02x 0x%02x\n",
sfp->id.base.phys_id, sfp->id.base.phys_ext_id);
@@ -1764,6 +1828,7 @@ static void sfp_sm_main(struct sfp *sfp,
if (sfp->mod_phy)
sfp_sm_phy_detach(sfp);
sfp_module_tx_disable(sfp);
+ sfp_soft_stop_poll(sfp);
sfp_sm_next(sfp, SFP_S_DOWN, 0);
return;
}
@@ -1775,7 +1840,10 @@ static void sfp_sm_main(struct sfp *sfp,
sfp->sm_dev_state != SFP_DEV_UP)
break;
- sfp_sm_mod_init(sfp);
+ if (!(sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE))
+ sfp_soft_start_poll(sfp);
+
+ sfp_module_tx_enable(sfp);
/* Initialise the fault clearance retries */
sfp->sm_retries = 5;
@@ -2031,7 +2099,10 @@ static void sfp_poll(struct work_struct
struct sfp *sfp = container_of(work, struct sfp, poll.work);
sfp_check_state(sfp);
- mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
+
+ if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) ||
+ sfp->need_poll)
+ mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
}
static struct sfp *sfp_alloc(struct device *dev)
@@ -2076,7 +2147,6 @@ static int sfp_probe(struct platform_dev
const struct sff_data *sff;
struct i2c_adapter *i2c;
struct sfp *sfp;
- bool poll = false;
int err, i;
sfp = sfp_alloc(&pdev->dev);
@@ -2183,7 +2253,7 @@ static int sfp_probe(struct platform_dev
sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]);
if (!sfp->gpio_irq[i]) {
- poll = true;
+ sfp->need_poll = true;
continue;
}
@@ -2195,11 +2265,11 @@ static int sfp_probe(struct platform_dev
dev_name(sfp->dev), sfp);
if (err) {
sfp->gpio_irq[i] = 0;
- poll = true;
+ sfp->need_poll = true;
}
}
- if (poll)
+ if (sfp->need_poll)
mod_delayed_work(system_wq, &sfp->poll, poll_jiffies);
/* We could have an issue in cases no Tx disable pin is available or
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -428,6 +428,10 @@ enum {
SFP_TEC_CUR = 0x6c,
SFP_STATUS = 0x6e,
+ SFP_STATUS_TX_DISABLE = BIT(7),
+ SFP_STATUS_TX_DISABLE_FORCE = BIT(6),
+ SFP_STATUS_TX_FAULT = BIT(2),
+ SFP_STATUS_RX_LOS = BIT(1),
SFP_ALARM0 = 0x70,
SFP_ALARM0_TEMP_HIGH = BIT(7),
SFP_ALARM0_TEMP_LOW = BIT(6),

123
target/linux/generic/backport-5.4/745-v5.7-net-dsa-mt7530-add-support-for-port-mirroring.patch Normal file
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@ -0,0 +1,123 @@
From 37feab6076aa816ed72fe836759a485353241916 Mon Sep 17 00:00:00 2001
From: DENG Qingfang <dqfext@gmail.com>
Date: Fri, 6 Mar 2020 20:35:35 +0800
Subject: net: dsa: mt7530: add support for port mirroring
Add support for configuring port mirroring through the cls_matchall
classifier. We do a full ingress and/or egress capture towards a
capture port.
MT7530 supports one monitor port and multiple mirrored ports.
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/mt7530.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++
drivers/net/dsa/mt7530.h | 7 ++++++
2 files changed, 67 insertions(+)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1222,6 +1222,64 @@ mt7530_port_vlan_del(struct dsa_switch *
return 0;
}
+static int mt7530_port_mirror_add(struct dsa_switch *ds, int port,
+ struct dsa_mall_mirror_tc_entry *mirror,
+ bool ingress)
+{
+ struct mt7530_priv *priv = ds->priv;
+ u32 val;
+
+ /* Check for existent entry */
+ if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
+ return -EEXIST;
+
+ val = mt7530_read(priv, MT7530_MFC);
+
+ /* MT7530 only supports one monitor port */
+ if (val & MIRROR_EN && MIRROR_PORT(val) != mirror->to_local_port)
+ return -EEXIST;
+
+ val |= MIRROR_EN;
+ val &= ~MIRROR_MASK;
+ val |= mirror->to_local_port;
+ mt7530_write(priv, MT7530_MFC, val);
+
+ val = mt7530_read(priv, MT7530_PCR_P(port));
+ if (ingress) {
+ val |= PORT_RX_MIR;
+ priv->mirror_rx |= BIT(port);
+ } else {
+ val |= PORT_TX_MIR;
+ priv->mirror_tx |= BIT(port);
+ }
+ mt7530_write(priv, MT7530_PCR_P(port), val);
+
+ return 0;
+}
+
+static void mt7530_port_mirror_del(struct dsa_switch *ds, int port,
+ struct dsa_mall_mirror_tc_entry *mirror)
+{
+ struct mt7530_priv *priv = ds->priv;
+ u32 val;
+
+ val = mt7530_read(priv, MT7530_PCR_P(port));
+ if (mirror->ingress) {
+ val &= ~PORT_RX_MIR;
+ priv->mirror_rx &= ~BIT(port);
+ } else {
+ val &= ~PORT_TX_MIR;
+ priv->mirror_tx &= ~BIT(port);
+ }
+ mt7530_write(priv, MT7530_PCR_P(port), val);
+
+ if (!priv->mirror_rx && !priv->mirror_tx) {
+ val = mt7530_read(priv, MT7530_MFC);
+ val &= ~MIRROR_EN;
+ mt7530_write(priv, MT7530_MFC, val);
+ }
+}
+
static enum dsa_tag_protocol
mtk_get_tag_protocol(struct dsa_switch *ds, int port)
{
@@ -1606,6 +1664,8 @@ static const struct dsa_switch_ops mt753
.port_vlan_prepare = mt7530_port_vlan_prepare,
.port_vlan_add = mt7530_port_vlan_add,
.port_vlan_del = mt7530_port_vlan_del,
+ .port_mirror_add = mt7530_port_mirror_add,
+ .port_mirror_del = mt7530_port_mirror_del,
.phylink_validate = mt7530_phylink_validate,
.phylink_mac_link_state = mt7530_phylink_mac_link_state,
.phylink_mac_config = mt7530_phylink_mac_config,
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -36,6 +36,9 @@ enum {
#define CPU_EN BIT(7)
#define CPU_PORT(x) ((x) << 4)
#define CPU_MASK (0xf << 4)
+#define MIRROR_EN BIT(3)
+#define MIRROR_PORT(x) ((x) & 0x7)
+#define MIRROR_MASK 0x7
/* Registers for address table access */
#define MT7530_ATA1 0x74
@@ -141,6 +144,8 @@ enum mt7530_stp_state {
/* Register for port control */
#define MT7530_PCR_P(x) (0x2004 + ((x) * 0x100))
+#define PORT_TX_MIR BIT(9)
+#define PORT_RX_MIR BIT(8)
#define PORT_VLAN(x) ((x) & 0x3)
enum mt7530_port_mode {
@@ -460,6 +465,8 @@ struct mt7530_priv {
phy_interface_t p6_interface;
phy_interface_t p5_interface;
unsigned int p5_intf_sel;
+ u8 mirror_rx;
+ u8 mirror_tx;
struct mt7530_port ports[MT7530_NUM_PORTS];
/* protect among processes for registers access*/

39
target/linux/generic/backport-5.4/746-stable-net-dsa-mt7530-fix-null-pointer-dereferencing-in-por.patch Normal file
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@ -0,0 +1,39 @@
From 0452800f6db4ed0a42ffb15867c0acfd68829f6a Mon Sep 17 00:00:00 2001
From: Chuanhong Guo <gch981213@gmail.com>
Date: Fri, 3 Apr 2020 19:28:24 +0800
Subject: net: dsa: mt7530: fix null pointer dereferencing in port5 setup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The 2nd gmac of mediatek soc ethernet may not be connected to a PHY
and a phy-handle isn't always available.
Unfortunately, mt7530 dsa driver assumes that the 2nd gmac is always
connected to switch port 5 and setup mt7530 according to phy address
of 2nd gmac node, causing null pointer dereferencing when phy-handle
isn't defined in dts.
This commit fix this setup code by checking return value of
of_parse_phandle before using it.
Fixes: 38f790a80560 ("net: dsa: mt7530: Add support for port 5")
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: René van Dorst <opensource@vdorst.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/dsa/mt7530.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1411,6 +1411,9 @@ mt7530_setup(struct dsa_switch *ds)
continue;
phy_node = of_parse_phandle(mac_np, "phy-handle", 0);
+ if (!phy_node)
+ continue;
+
if (phy_node->parent == priv->dev->of_node->parent) {
interface = of_get_phy_mode(mac_np);
id = of_mdio_parse_addr(ds->dev, phy_node);

893
target/linux/generic/backport-5.4/800-v5.5-iio-imu-Add-support-for-the-FXOS8700-IMU.patch Normal file
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@ -0,0 +1,893 @@
From 84e5ddd5c46ea3bf0cad670da32028994cad5936 Mon Sep 17 00:00:00 2001
From: Robert Jones <rjones@gateworks.com>
Date: Mon, 14 Oct 2019 11:49:21 -0700
Subject: [PATCH] iio: imu: Add support for the FXOS8700 IMU
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
FXOS8700CQ is a small, low-power, 3-axis linear accelerometer and 3-axis
magnetometer combined into a single package. The device features a
selectable I2C or point-to-point SPI serial interface with 14-bit
accelerometer and 16-bit magnetometer ADC resolution along with
smart-embedded functions.
FXOS8700CQ has dynamically selectable accelerationfull-scale ranges of
±2 g/±4 g/±8 g and a fixed magnetic measurement range of ±1200 μT.
Output data rates (ODR) from 1.563 Hz to 800 Hz are selectable by the user
for each sensor. Interleaved magnetic and acceleration data is available
at ODR rates of up to 400 Hz. FXOS8700CQ is available in a plastic QFN
package and it is guaranteed to operate over the extended temperature
range of –40 °C to +85 °C.
TODO: Trigger and IRQ configuration support
Datasheet:
http://cache.freescale.com/files/sensors/doc/data_sheet/FXOS8700CQ.pdf
Signed-off-by: Robert Jones <rjones@gateworks.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
drivers/iio/imu/Kconfig | 27 ++
drivers/iio/imu/Makefile | 5 +
drivers/iio/imu/fxos8700.h | 10 +
drivers/iio/imu/fxos8700_core.c | 649 ++++++++++++++++++++++++++++++++++++++++
drivers/iio/imu/fxos8700_i2c.c | 71 +++++
drivers/iio/imu/fxos8700_spi.c | 59 ++++
6 files changed, 821 insertions(+)
create mode 100644 drivers/iio/imu/fxos8700.h
create mode 100644 drivers/iio/imu/fxos8700_core.c
create mode 100644 drivers/iio/imu/fxos8700_i2c.c
create mode 100644 drivers/iio/imu/fxos8700_spi.c
--- a/drivers/iio/imu/Kconfig
+++ b/drivers/iio/imu/Kconfig
@@ -40,6 +40,33 @@ config ADIS16480
source "drivers/iio/imu/bmi160/Kconfig"
+config FXOS8700
+ tristate
+
+config FXOS8700_I2C
+ tristate "NXP FXOS8700 I2C driver"
+ depends on I2C
+ select FXOS8700
+ select REGMAP_I2C
+ help
+ Say yes here to build support for the NXP FXOS8700 m+g combo
+ sensor on I2C.
+
+ This driver can also be built as a module. If so, the module will be
+ called fxos8700_i2c.
+
+config FXOS8700_SPI
+ tristate "NXP FXOS8700 SPI driver"
+ depends on SPI
+ select FXOS8700
+ select REGMAP_SPI
+ help
+ Say yes here to build support for the NXP FXOS8700 m+g combo
+ sensor on SPI.
+
+ This driver can also be built as a module. If so, the module will be
+ called fxos8700_spi.
+
config KMX61
tristate "Kionix KMX61 6-axis accelerometer and magnetometer"
depends on I2C
--- a/drivers/iio/imu/Makefile
+++ b/drivers/iio/imu/Makefile
@@ -14,6 +14,11 @@ adis_lib-$(CONFIG_IIO_ADIS_LIB_BUFFER) +
obj-$(CONFIG_IIO_ADIS_LIB) += adis_lib.o
obj-y += bmi160/
+
+obj-$(CONFIG_FXOS8700) += fxos8700_core.o
+obj-$(CONFIG_FXOS8700_I2C) += fxos8700_i2c.o
+obj-$(CONFIG_FXOS8700_SPI) += fxos8700_spi.o
+
obj-y += inv_mpu6050/
obj-$(CONFIG_KMX61) += kmx61.o
--- /dev/null
+++ b/drivers/iio/imu/fxos8700.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef FXOS8700_H_
+#define FXOS8700_H_
+
+extern const struct regmap_config fxos8700_regmap_config;
+
+int fxos8700_core_probe(struct device *dev, struct regmap *regmap,
+ const char *name, bool use_spi);
+
+#endif /* FXOS8700_H_ */
--- /dev/null
+++ b/drivers/iio/imu/fxos8700_core.c
@@ -0,0 +1,649 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * FXOS8700 - NXP IMU (accelerometer plus magnetometer)
+ *
+ * IIO core driver for FXOS8700, with support for I2C/SPI busses
+ *
+ * TODO: Buffer, trigger, and IRQ support
+ */
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/acpi.h>
+#include <linux/bitops.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#include "fxos8700.h"
+
+/* Register Definitions */
+#define FXOS8700_STATUS 0x00
+#define FXOS8700_OUT_X_MSB 0x01
+#define FXOS8700_OUT_X_LSB 0x02
+#define FXOS8700_OUT_Y_MSB 0x03
+#define FXOS8700_OUT_Y_LSB 0x04
+#define FXOS8700_OUT_Z_MSB 0x05
+#define FXOS8700_OUT_Z_LSB 0x06
+#define FXOS8700_F_SETUP 0x09
+#define FXOS8700_TRIG_CFG 0x0a
+#define FXOS8700_SYSMOD 0x0b
+#define FXOS8700_INT_SOURCE 0x0c
+#define FXOS8700_WHO_AM_I 0x0d
+#define FXOS8700_XYZ_DATA_CFG 0x0e
+#define FXOS8700_HP_FILTER_CUTOFF 0x0f
+#define FXOS8700_PL_STATUS 0x10
+#define FXOS8700_PL_CFG 0x11
+#define FXOS8700_PL_COUNT 0x12
+#define FXOS8700_PL_BF_ZCOMP 0x13
+#define FXOS8700_PL_THS_REG 0x14
+#define FXOS8700_A_FFMT_CFG 0x15
+#define FXOS8700_A_FFMT_SRC 0x16
+#define FXOS8700_A_FFMT_THS 0x17
+#define FXOS8700_A_FFMT_COUNT 0x18
+#define FXOS8700_TRANSIENT_CFG 0x1d
+#define FXOS8700_TRANSIENT_SRC 0x1e
+#define FXOS8700_TRANSIENT_THS 0x1f
+#define FXOS8700_TRANSIENT_COUNT 0x20
+#define FXOS8700_PULSE_CFG 0x21
+#define FXOS8700_PULSE_SRC 0x22
+#define FXOS8700_PULSE_THSX 0x23
+#define FXOS8700_PULSE_THSY 0x24
+#define FXOS8700_PULSE_THSZ 0x25
+#define FXOS8700_PULSE_TMLT 0x26
+#define FXOS8700_PULSE_LTCY 0x27
+#define FXOS8700_PULSE_WIND 0x28
+#define FXOS8700_ASLP_COUNT 0x29
+#define FXOS8700_CTRL_REG1 0x2a
+#define FXOS8700_CTRL_REG2 0x2b
+#define FXOS8700_CTRL_REG3 0x2c
+#define FXOS8700_CTRL_REG4 0x2d
+#define FXOS8700_CTRL_REG5 0x2e
+#define FXOS8700_OFF_X 0x2f
+#define FXOS8700_OFF_Y 0x30
+#define FXOS8700_OFF_Z 0x31
+#define FXOS8700_M_DR_STATUS 0x32
+#define FXOS8700_M_OUT_X_MSB 0x33
+#define FXOS8700_M_OUT_X_LSB 0x34
+#define FXOS8700_M_OUT_Y_MSB 0x35
+#define FXOS8700_M_OUT_Y_LSB 0x36
+#define FXOS8700_M_OUT_Z_MSB 0x37
+#define FXOS8700_M_OUT_Z_LSB 0x38
+#define FXOS8700_CMP_X_MSB 0x39
+#define FXOS8700_CMP_X_LSB 0x3a
+#define FXOS8700_CMP_Y_MSB 0x3b
+#define FXOS8700_CMP_Y_LSB 0x3c
+#define FXOS8700_CMP_Z_MSB 0x3d
+#define FXOS8700_CMP_Z_LSB 0x3e
+#define FXOS8700_M_OFF_X_MSB 0x3f
+#define FXOS8700_M_OFF_X_LSB 0x40
+#define FXOS8700_M_OFF_Y_MSB 0x41
+#define FXOS8700_M_OFF_Y_LSB 0x42
+#define FXOS8700_M_OFF_Z_MSB 0x43
+#define FXOS8700_M_OFF_Z_LSB 0x44
+#define FXOS8700_MAX_X_MSB 0x45
+#define FXOS8700_MAX_X_LSB 0x46
+#define FXOS8700_MAX_Y_MSB 0x47
+#define FXOS8700_MAX_Y_LSB 0x48
+#define FXOS8700_MAX_Z_MSB 0x49
+#define FXOS8700_MAX_Z_LSB 0x4a
+#define FXOS8700_MIN_X_MSB 0x4b
+#define FXOS8700_MIN_X_LSB 0x4c
+#define FXOS8700_MIN_Y_MSB 0x4d
+#define FXOS8700_MIN_Y_LSB 0x4e
+#define FXOS8700_MIN_Z_MSB 0x4f
+#define FXOS8700_MIN_Z_LSB 0x50
+#define FXOS8700_TEMP 0x51
+#define FXOS8700_M_THS_CFG 0x52
+#define FXOS8700_M_THS_SRC 0x53
+#define FXOS8700_M_THS_X_MSB 0x54
+#define FXOS8700_M_THS_X_LSB 0x55
+#define FXOS8700_M_THS_Y_MSB 0x56
+#define FXOS8700_M_THS_Y_LSB 0x57
+#define FXOS8700_M_THS_Z_MSB 0x58
+#define FXOS8700_M_THS_Z_LSB 0x59
+#define FXOS8700_M_THS_COUNT 0x5a
+#define FXOS8700_M_CTRL_REG1 0x5b
+#define FXOS8700_M_CTRL_REG2 0x5c
+#define FXOS8700_M_CTRL_REG3 0x5d
+#define FXOS8700_M_INT_SRC 0x5e
+#define FXOS8700_A_VECM_CFG 0x5f
+#define FXOS8700_A_VECM_THS_MSB 0x60
+#define FXOS8700_A_VECM_THS_LSB 0x61
+#define FXOS8700_A_VECM_CNT 0x62
+#define FXOS8700_A_VECM_INITX_MSB 0x63
+#define FXOS8700_A_VECM_INITX_LSB 0x64
+#define FXOS8700_A_VECM_INITY_MSB 0x65
+#define FXOS8700_A_VECM_INITY_LSB 0x66
+#define FXOS8700_A_VECM_INITZ_MSB 0x67
+#define FXOS8700_A_VECM_INITZ_LSB 0x68
+#define FXOS8700_M_VECM_CFG 0x69
+#define FXOS8700_M_VECM_THS_MSB 0x6a
+#define FXOS8700_M_VECM_THS_LSB 0x6b
+#define FXOS8700_M_VECM_CNT 0x6c
+#define FXOS8700_M_VECM_INITX_MSB 0x6d
+#define FXOS8700_M_VECM_INITX_LSB 0x6e
+#define FXOS8700_M_VECM_INITY_MSB 0x6f
+#define FXOS8700_M_VECM_INITY_LSB 0x70
+#define FXOS8700_M_VECM_INITZ_MSB 0x71
+#define FXOS8700_M_VECM_INITZ_LSB 0x72
+#define FXOS8700_A_FFMT_THS_X_MSB 0x73
+#define FXOS8700_A_FFMT_THS_X_LSB 0x74
+#define FXOS8700_A_FFMT_THS_Y_MSB 0x75
+#define FXOS8700_A_FFMT_THS_Y_LSB 0x76
+#define FXOS8700_A_FFMT_THS_Z_MSB 0x77
+#define FXOS8700_A_FFMT_THS_Z_LSB 0x78
+#define FXOS8700_A_TRAN_INIT_MSB 0x79
+#define FXOS8700_A_TRAN_INIT_LSB_X 0x7a
+#define FXOS8700_A_TRAN_INIT_LSB_Y 0x7b
+#define FXOS8700_A_TRAN_INIT_LSB_Z 0x7d
+#define FXOS8700_TM_NVM_LOCK 0x7e
+#define FXOS8700_NVM_DATA0_35 0x80
+#define FXOS8700_NVM_DATA_BNK3 0xa4
+#define FXOS8700_NVM_DATA_BNK2 0xa5
+#define FXOS8700_NVM_DATA_BNK1 0xa6
+#define FXOS8700_NVM_DATA_BNK0 0xa7
+
+/* Bit definitions for FXOS8700_CTRL_REG1 */
+#define FXOS8700_CTRL_ODR_MSK 0x38
+#define FXOS8700_CTRL_ODR_MAX 0x00
+#define FXOS8700_CTRL_ODR_MIN GENMASK(4, 3)
+
+/* Bit definitions for FXOS8700_M_CTRL_REG1 */
+#define FXOS8700_HMS_MASK GENMASK(1, 0)
+#define FXOS8700_OS_MASK GENMASK(4, 2)
+
+/* Bit definitions for FXOS8700_M_CTRL_REG2 */
+#define FXOS8700_MAXMIN_RST BIT(2)
+#define FXOS8700_MAXMIN_DIS_THS BIT(3)
+#define FXOS8700_MAXMIN_DIS BIT(4)
+
+#define FXOS8700_ACTIVE 0x01
+#define FXOS8700_ACTIVE_MIN_USLEEP 4000 /* from table 6 in datasheet */
+
+#define FXOS8700_DEVICE_ID 0xC7
+#define FXOS8700_PRE_DEVICE_ID 0xC4
+#define FXOS8700_DATA_BUF_SIZE 3
+
+struct fxos8700_data {
+ struct regmap *regmap;
+ struct iio_trigger *trig;
+ __be16 buf[FXOS8700_DATA_BUF_SIZE] ____cacheline_aligned;
+};
+
+/* Regmap info */
+static const struct regmap_range read_range[] = {
+ {
+ .range_min = FXOS8700_STATUS,
+ .range_max = FXOS8700_A_FFMT_COUNT,
+ }, {
+ .range_min = FXOS8700_TRANSIENT_CFG,
+ .range_max = FXOS8700_A_FFMT_THS_Z_LSB,
+ },
+};
+
+static const struct regmap_range write_range[] = {
+ {
+ .range_min = FXOS8700_F_SETUP,
+ .range_max = FXOS8700_TRIG_CFG,
+ }, {
+ .range_min = FXOS8700_XYZ_DATA_CFG,
+ .range_max = FXOS8700_HP_FILTER_CUTOFF,
+ }, {
+ .range_min = FXOS8700_PL_CFG,
+ .range_max = FXOS8700_A_FFMT_CFG,
+ }, {
+ .range_min = FXOS8700_A_FFMT_THS,
+ .range_max = FXOS8700_TRANSIENT_CFG,
+ }, {
+ .range_min = FXOS8700_TRANSIENT_THS,
+ .range_max = FXOS8700_PULSE_CFG,
+ }, {
+ .range_min = FXOS8700_PULSE_THSX,
+ .range_max = FXOS8700_OFF_Z,
+ }, {
+ .range_min = FXOS8700_M_OFF_X_MSB,
+ .range_max = FXOS8700_M_OFF_Z_LSB,
+ }, {
+ .range_min = FXOS8700_M_THS_CFG,
+ .range_max = FXOS8700_M_THS_CFG,
+ }, {
+ .range_min = FXOS8700_M_THS_X_MSB,
+ .range_max = FXOS8700_M_CTRL_REG3,
+ }, {
+ .range_min = FXOS8700_A_VECM_CFG,
+ .range_max = FXOS8700_A_FFMT_THS_Z_LSB,
+ },
+};
+
+static const struct regmap_access_table driver_read_table = {
+ .yes_ranges = read_range,
+ .n_yes_ranges = ARRAY_SIZE(read_range),
+};
+
+static const struct regmap_access_table driver_write_table = {
+ .yes_ranges = write_range,
+ .n_yes_ranges = ARRAY_SIZE(write_range),
+};
+
+const struct regmap_config fxos8700_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = FXOS8700_NVM_DATA_BNK0,
+ .rd_table = &driver_read_table,
+ .wr_table = &driver_write_table,
+};
+EXPORT_SYMBOL(fxos8700_regmap_config);
+
+#define FXOS8700_CHANNEL(_type, _axis) { \
+ .type = _type, \
+ .modified = 1, \
+ .channel2 = IIO_MOD_##_axis, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \
+ BIT(IIO_CHAN_INFO_SAMP_FREQ), \
+}
+
+enum fxos8700_accel_scale_bits {
+ MODE_2G = 0,
+ MODE_4G,
+ MODE_8G,
+};
+
+/* scan indexes follow DATA register order */
+enum fxos8700_scan_axis {
+ FXOS8700_SCAN_ACCEL_X = 0,
+ FXOS8700_SCAN_ACCEL_Y,
+ FXOS8700_SCAN_ACCEL_Z,
+ FXOS8700_SCAN_MAGN_X,
+ FXOS8700_SCAN_MAGN_Y,
+ FXOS8700_SCAN_MAGN_Z,
+ FXOS8700_SCAN_RHALL,
+ FXOS8700_SCAN_TIMESTAMP,
+};
+
+enum fxos8700_sensor {
+ FXOS8700_ACCEL = 0,
+ FXOS8700_MAGN,
+ FXOS8700_NUM_SENSORS /* must be last */
+};
+
+enum fxos8700_int_pin {
+ FXOS8700_PIN_INT1,
+ FXOS8700_PIN_INT2
+};
+
+struct fxos8700_scale {
+ u8 bits;
+ int uscale;
+};
+
+struct fxos8700_odr {
+ u8 bits;
+ int odr;
+ int uodr;
+};
+
+static const struct fxos8700_scale fxos8700_accel_scale[] = {
+ { MODE_2G, 244},
+ { MODE_4G, 488},
+ { MODE_8G, 976},
+};
+
+/*
+ * Accellerometer and magnetometer have the same ODR options, set in the
+ * CTRL_REG1 register. ODR is halved when using both sensors at once in
+ * hybrid mode.
+ */
+static const struct fxos8700_odr fxos8700_odr[] = {
+ {0x00, 800, 0},
+ {0x01, 400, 0},
+ {0x02, 200, 0},
+ {0x03, 100, 0},
+ {0x04, 50, 0},
+ {0x05, 12, 500000},
+ {0x06, 6, 250000},
+ {0x07, 1, 562500},
+};
+
+static const struct iio_chan_spec fxos8700_channels[] = {
+ FXOS8700_CHANNEL(IIO_ACCEL, X),
+ FXOS8700_CHANNEL(IIO_ACCEL, Y),
+ FXOS8700_CHANNEL(IIO_ACCEL, Z),
+ FXOS8700_CHANNEL(IIO_MAGN, X),
+ FXOS8700_CHANNEL(IIO_MAGN, Y),
+ FXOS8700_CHANNEL(IIO_MAGN, Z),
+ IIO_CHAN_SOFT_TIMESTAMP(FXOS8700_SCAN_TIMESTAMP),
+};
+
+static enum fxos8700_sensor fxos8700_to_sensor(enum iio_chan_type iio_type)
+{
+ switch (iio_type) {
+ case IIO_ACCEL:
+ return FXOS8700_ACCEL;
+ case IIO_ANGL_VEL:
+ return FXOS8700_MAGN;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int fxos8700_set_active_mode(struct fxos8700_data *data,
+ enum fxos8700_sensor t, bool mode)
+{
+ int ret;
+
+ ret = regmap_write(data->regmap, FXOS8700_CTRL_REG1, mode);
+ if (ret)
+ return ret;
+
+ usleep_range(FXOS8700_ACTIVE_MIN_USLEEP,
+ FXOS8700_ACTIVE_MIN_USLEEP + 1000);
+
+ return 0;
+}
+
+static int fxos8700_set_scale(struct fxos8700_data *data,
+ enum fxos8700_sensor t, int uscale)
+{
+ int i;
+ static const int scale_num = ARRAY_SIZE(fxos8700_accel_scale);
+ struct device *dev = regmap_get_device(data->regmap);
+
+ if (t == FXOS8700_MAGN) {
+ dev_err(dev, "Magnetometer scale is locked at 1200uT\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < scale_num; i++)
+ if (fxos8700_accel_scale[i].uscale == uscale)
+ break;
+
+ if (i == scale_num)
+ return -EINVAL;
+
+ return regmap_write(data->regmap, FXOS8700_XYZ_DATA_CFG,
+ fxos8700_accel_scale[i].bits);
+}
+
+static int fxos8700_get_scale(struct fxos8700_data *data,
+ enum fxos8700_sensor t, int *uscale)
+{
+ int i, ret, val;
+ static const int scale_num = ARRAY_SIZE(fxos8700_accel_scale);
+
+ if (t == FXOS8700_MAGN) {
+ *uscale = 1200; /* Magnetometer is locked at 1200uT */
+ return 0;
+ }
+
+ ret = regmap_read(data->regmap, FXOS8700_XYZ_DATA_CFG, &val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < scale_num; i++) {
+ if (fxos8700_accel_scale[i].bits == (val & 0x3)) {
+ *uscale = fxos8700_accel_scale[i].uscale;
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int fxos8700_get_data(struct fxos8700_data *data, int chan_type,
+ int axis, int *val)
+{
+ u8 base, reg;
+ int ret;
+ enum fxos8700_sensor type = fxos8700_to_sensor(chan_type);
+
+ base = type ? FXOS8700_OUT_X_MSB : FXOS8700_M_OUT_X_MSB;
+
+ /* Block read 6 bytes of device output registers to avoid data loss */
+ ret = regmap_bulk_read(data->regmap, base, data->buf,
+ FXOS8700_DATA_BUF_SIZE);
+ if (ret)
+ return ret;
+
+ /* Convert axis to buffer index */
+ reg = axis - IIO_MOD_X;
+
+ /* Convert to native endianness */
+ *val = sign_extend32(be16_to_cpu(data->buf[reg]), 15);
+
+ return 0;
+}
+
+static int fxos8700_set_odr(struct fxos8700_data *data, enum fxos8700_sensor t,
+ int odr, int uodr)
+{
+ int i, ret, val;
+ bool active_mode;
+ static const int odr_num = ARRAY_SIZE(fxos8700_odr);
+
+ ret = regmap_read(data->regmap, FXOS8700_CTRL_REG1, &val);
+ if (ret)
+ return ret;
+
+ active_mode = val & FXOS8700_ACTIVE;
+
+ if (active_mode) {
+ /*
+ * The device must be in standby mode to change any of the
+ * other fields within CTRL_REG1
+ */
+ ret = regmap_write(data->regmap, FXOS8700_CTRL_REG1,
+ val & ~FXOS8700_ACTIVE);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < odr_num; i++)
+ if (fxos8700_odr[i].odr == odr && fxos8700_odr[i].uodr == uodr)
+ break;
+
+ if (i >= odr_num)
+ return -EINVAL;
+
+ return regmap_update_bits(data->regmap,
+ FXOS8700_CTRL_REG1,
+ FXOS8700_CTRL_ODR_MSK + FXOS8700_ACTIVE,
+ fxos8700_odr[i].bits << 3 | active_mode);
+}
+
+static int fxos8700_get_odr(struct fxos8700_data *data, enum fxos8700_sensor t,
+ int *odr, int *uodr)
+{
+ int i, val, ret;
+ static const int odr_num = ARRAY_SIZE(fxos8700_odr);
+
+ ret = regmap_read(data->regmap, FXOS8700_CTRL_REG1, &val);
+ if (ret)
+ return ret;
+
+ val &= FXOS8700_CTRL_ODR_MSK;
+
+ for (i = 0; i < odr_num; i++)
+ if (val == fxos8700_odr[i].bits)
+ break;
+
+ if (i >= odr_num)
+ return -EINVAL;
+
+ *odr = fxos8700_odr[i].odr;
+ *uodr = fxos8700_odr[i].uodr;
+
+ return 0;
+}
+
+static int fxos8700_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ int ret;
+ struct fxos8700_data *data = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ ret = fxos8700_get_data(data, chan->type, chan->channel2, val);
+ if (ret)
+ return ret;
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ *val = 0;
+ ret = fxos8700_get_scale(data, fxos8700_to_sensor(chan->type),
+ val2);
+ return ret ? ret : IIO_VAL_INT_PLUS_MICRO;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ ret = fxos8700_get_odr(data, fxos8700_to_sensor(chan->type),
+ val, val2);
+ return ret ? ret : IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int fxos8700_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int val, int val2, long mask)
+{
+ struct fxos8700_data *data = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_SCALE:
+ return fxos8700_set_scale(data, fxos8700_to_sensor(chan->type),
+ val2);
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ return fxos8700_set_odr(data, fxos8700_to_sensor(chan->type),
+ val, val2);
+ default:
+ return -EINVAL;
+ }
+}
+
+static IIO_CONST_ATTR(in_accel_sampling_frequency_available,
+ "1.5625 6.25 12.5 50 100 200 400 800");
+static IIO_CONST_ATTR(in_magn_sampling_frequency_available,
+ "1.5625 6.25 12.5 50 100 200 400 800");
+static IIO_CONST_ATTR(in_accel_scale_available, "0.000244 0.000488 0.000976");
+static IIO_CONST_ATTR(in_magn_scale_available, "0.000001200");
+
+static struct attribute *fxos8700_attrs[] = {
+ &iio_const_attr_in_accel_sampling_frequency_available.dev_attr.attr,
+ &iio_const_attr_in_magn_sampling_frequency_available.dev_attr.attr,
+ &iio_const_attr_in_accel_scale_available.dev_attr.attr,
+ &iio_const_attr_in_magn_scale_available.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group fxos8700_attrs_group = {
+ .attrs = fxos8700_attrs,
+};
+
+static const struct iio_info fxos8700_info = {
+ .read_raw = fxos8700_read_raw,
+ .write_raw = fxos8700_write_raw,
+ .attrs = &fxos8700_attrs_group,
+};
+
+static int fxos8700_chip_init(struct fxos8700_data *data, bool use_spi)
+{
+ int ret;
+ unsigned int val;
+ struct device *dev = regmap_get_device(data->regmap);
+
+ ret = regmap_read(data->regmap, FXOS8700_WHO_AM_I, &val);
+ if (ret) {
+ dev_err(dev, "Error reading chip id\n");
+ return ret;
+ }
+ if (val != FXOS8700_DEVICE_ID && val != FXOS8700_PRE_DEVICE_ID) {
+ dev_err(dev, "Wrong chip id, got %x expected %x or %x\n",
+ val, FXOS8700_DEVICE_ID, FXOS8700_PRE_DEVICE_ID);
+ return -ENODEV;
+ }
+
+ ret = fxos8700_set_active_mode(data, FXOS8700_ACCEL, true);
+ if (ret)
+ return ret;
+
+ ret = fxos8700_set_active_mode(data, FXOS8700_MAGN, true);
+ if (ret)
+ return ret;
+
+ /*
+ * The device must be in standby mode to change any of the other fields
+ * within CTRL_REG1
+ */
+ ret = regmap_write(data->regmap, FXOS8700_CTRL_REG1, 0x00);
+ if (ret)
+ return ret;
+
+ /* Set max oversample ratio (OSR) and both devices active */
+ ret = regmap_write(data->regmap, FXOS8700_M_CTRL_REG1,
+ FXOS8700_HMS_MASK | FXOS8700_OS_MASK);
+ if (ret)
+ return ret;
+
+ /* Disable and rst min/max measurements & threshold */
+ ret = regmap_write(data->regmap, FXOS8700_M_CTRL_REG2,
+ FXOS8700_MAXMIN_RST | FXOS8700_MAXMIN_DIS_THS |
+ FXOS8700_MAXMIN_DIS);
+ if (ret)
+ return ret;
+
+ /* Max ODR (800Hz individual or 400Hz hybrid), active mode */
+ ret = regmap_write(data->regmap, FXOS8700_CTRL_REG1,
+ FXOS8700_CTRL_ODR_MAX | FXOS8700_ACTIVE);
+ if (ret)
+ return ret;
+
+ /* Set for max full-scale range (+/-8G) */
+ return regmap_write(data->regmap, FXOS8700_XYZ_DATA_CFG, MODE_8G);
+}
+
+static void fxos8700_chip_uninit(void *data)
+{
+ struct fxos8700_data *fxos8700_data = data;
+
+ fxos8700_set_active_mode(fxos8700_data, FXOS8700_ACCEL, false);
+ fxos8700_set_active_mode(fxos8700_data, FXOS8700_MAGN, false);
+}
+
+int fxos8700_core_probe(struct device *dev, struct regmap *regmap,
+ const char *name, bool use_spi)
+{
+ struct iio_dev *indio_dev;
+ struct fxos8700_data *data;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ data = iio_priv(indio_dev);
+ dev_set_drvdata(dev, indio_dev);
+ data->regmap = regmap;
+
+ ret = fxos8700_chip_init(data, use_spi);
+ if (ret)
+ return ret;
+
+ ret = devm_add_action_or_reset(dev, fxos8700_chip_uninit, data);
+ if (ret)
+ return ret;
+
+ indio_dev->dev.parent = dev;
+ indio_dev->channels = fxos8700_channels;
+ indio_dev->num_channels = ARRAY_SIZE(fxos8700_channels);
+ indio_dev->name = name ? name : "fxos8700";
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->info = &fxos8700_info;
+
+ return devm_iio_device_register(dev, indio_dev);
+}
+EXPORT_SYMBOL_GPL(fxos8700_core_probe);
+
+MODULE_AUTHOR("Robert Jones <rjones@gateworks.com>");
+MODULE_DESCRIPTION("FXOS8700 6-Axis Acc and Mag Combo Sensor driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/drivers/iio/imu/fxos8700_i2c.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * FXOS8700 - NXP IMU, I2C bits
+ *
+ * 7-bit I2C slave address determined by SA1 and SA0 logic level
+ * inputs represented in the following table:
+ * SA1 | SA0 | Slave Address
+ * 0 | 0 | 0x1E
+ * 0 | 1 | 0x1D
+ * 1 | 0 | 0x1C
+ * 1 | 1 | 0x1F
+ */
+#include <linux/acpi.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/regmap.h>
+
+#include "fxos8700.h"
+
+static int fxos8700_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct regmap *regmap;
+ const char *name = NULL;
+
+ regmap = devm_regmap_init_i2c(client, &fxos8700_regmap_config);
+ if (IS_ERR(regmap)) {
+ dev_err(&client->dev, "Failed to register i2c regmap %d\n",
+ (int)PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ if (id)
+ name = id->name;
+
+ return fxos8700_core_probe(&client->dev, regmap, name, false);
+}
+
+static const struct i2c_device_id fxos8700_i2c_id[] = {
+ {"fxos8700", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, fxos8700_i2c_id);
+
+static const struct acpi_device_id fxos8700_acpi_match[] = {
+ {"FXOS8700", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, fxos8700_acpi_match);
+
+static const struct of_device_id fxos8700_of_match[] = {
+ { .compatible = "nxp,fxos8700" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, fxos8700_of_match);
+
+static struct i2c_driver fxos8700_i2c_driver = {
+ .driver = {
+ .name = "fxos8700_i2c",
+ .acpi_match_table = ACPI_PTR(fxos8700_acpi_match),
+ .of_match_table = fxos8700_of_match,
+ },
+ .probe = fxos8700_i2c_probe,
+ .id_table = fxos8700_i2c_id,
+};
+module_i2c_driver(fxos8700_i2c_driver);
+
+MODULE_AUTHOR("Robert Jones <rjones@gateworks.com>");
+MODULE_DESCRIPTION("FXOS8700 I2C driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+++ b/drivers/iio/imu/fxos8700_spi.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * FXOS8700 - NXP IMU, SPI bits
+ */
+#include <linux/acpi.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "fxos8700.h"
+
+static int fxos8700_spi_probe(struct spi_device *spi)
+{
+ struct regmap *regmap;
+ const struct spi_device_id *id = spi_get_device_id(spi);
+
+ regmap = devm_regmap_init_spi(spi, &fxos8700_regmap_config);
+ if (IS_ERR(regmap)) {
+ dev_err(&spi->dev, "Failed to register spi regmap %d\n",
+ (int)PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ return fxos8700_core_probe(&spi->dev, regmap, id->name, true);
+}
+
+static const struct spi_device_id fxos8700_spi_id[] = {
+ {"fxos8700", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(spi, fxos8700_spi_id);
+
+static const struct acpi_device_id fxos8700_acpi_match[] = {
+ {"FXOS8700", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, fxos8700_acpi_match);
+
+static const struct of_device_id fxos8700_of_match[] = {
+ { .compatible = "nxp,fxos8700" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, fxos8700_of_match);
+
+static struct spi_driver fxos8700_spi_driver = {
+ .probe = fxos8700_spi_probe,
+ .id_table = fxos8700_spi_id,
+ .driver = {
+ .acpi_match_table = ACPI_PTR(fxos8700_acpi_match),
+ .of_match_table = fxos8700_of_match,
+ .name = "fxos8700_spi",
+ },
+};
+module_spi_driver(fxos8700_spi_driver);
+
+MODULE_AUTHOR("Robert Jones <rjones@gateworks.com>");
+MODULE_DESCRIPTION("FXOS8700 SPI driver");
+MODULE_LICENSE("GPL v2");

122
target/linux/generic/backport-5.4/800-v5.5-scsi-core-Add-sysfs-attributes-for-VPD-pages-0h-and-.patch Normal file
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@ -0,0 +1,122 @@
From d188b0675b21d5a6ca27b3e741381813983f4719 Mon Sep 17 00:00:00 2001
From: Ryan Attard <ryanattard@ryanattard.info>
Date: Thu, 26 Sep 2019 11:22:17 -0500
Subject: [PATCH] scsi: core: Add sysfs attributes for VPD pages 0h and 89h
Add sysfs attributes for the ATA information page and Supported VPD Pages
page.
Link: https://lore.kernel.org/r/20190926162216.56591-1-ryanattard@ryanattard.info
Signed-off-by: Ryan Attard <ryanattard@ryanattard.info>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
drivers/scsi/scsi.c | 4 ++++
drivers/scsi/scsi_sysfs.c | 19 +++++++++++++++++++
include/scsi/scsi_device.h | 2 ++
3 files changed, 25 insertions(+)
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -465,10 +465,14 @@ void scsi_attach_vpd(struct scsi_device
return;
for (i = 4; i < vpd_buf->len; i++) {
+ if (vpd_buf->data[i] == 0x0)
+ scsi_update_vpd_page(sdev, 0x0, &sdev->vpd_pg0);
if (vpd_buf->data[i] == 0x80)
scsi_update_vpd_page(sdev, 0x80, &sdev->vpd_pg80);
if (vpd_buf->data[i] == 0x83)
scsi_update_vpd_page(sdev, 0x83, &sdev->vpd_pg83);
+ if (vpd_buf->data[i] == 0x89)
+ scsi_update_vpd_page(sdev, 0x89, &sdev->vpd_pg89);
}
kfree(vpd_buf);
}
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -437,6 +437,7 @@ static void scsi_device_dev_release_user
struct device *parent;
struct list_head *this, *tmp;
struct scsi_vpd *vpd_pg80 = NULL, *vpd_pg83 = NULL;
+ struct scsi_vpd *vpd_pg0 = NULL, *vpd_pg89 = NULL;
unsigned long flags;
sdev = container_of(work, struct scsi_device, ew.work);
@@ -466,16 +467,24 @@ static void scsi_device_dev_release_user
sdev->request_queue = NULL;
mutex_lock(&sdev->inquiry_mutex);
+ rcu_swap_protected(sdev->vpd_pg0, vpd_pg0,
+ lockdep_is_held(&sdev->inquiry_mutex));
rcu_swap_protected(sdev->vpd_pg80, vpd_pg80,
lockdep_is_held(&sdev->inquiry_mutex));
rcu_swap_protected(sdev->vpd_pg83, vpd_pg83,
lockdep_is_held(&sdev->inquiry_mutex));
+ rcu_swap_protected(sdev->vpd_pg89, vpd_pg89,
+ lockdep_is_held(&sdev->inquiry_mutex));
mutex_unlock(&sdev->inquiry_mutex);
+ if (vpd_pg0)
+ kfree_rcu(vpd_pg0, rcu);
if (vpd_pg83)
kfree_rcu(vpd_pg83, rcu);
if (vpd_pg80)
kfree_rcu(vpd_pg80, rcu);
+ if (vpd_pg89)
+ kfree_rcu(vpd_pg89, rcu);
kfree(sdev->inquiry);
kfree(sdev);
@@ -868,6 +877,8 @@ static struct bin_attribute dev_attr_vpd
sdev_vpd_pg_attr(pg83);
sdev_vpd_pg_attr(pg80);
+sdev_vpd_pg_attr(pg89);
+sdev_vpd_pg_attr(pg0);
static ssize_t show_inquiry(struct file *filep, struct kobject *kobj,
struct bin_attribute *bin_attr,
@@ -1200,12 +1211,18 @@ static umode_t scsi_sdev_bin_attr_is_vis
struct scsi_device *sdev = to_scsi_device(dev);
+ if (attr == &dev_attr_vpd_pg0 && !sdev->vpd_pg0)
+ return 0;
+
if (attr == &dev_attr_vpd_pg80 && !sdev->vpd_pg80)
return 0;
if (attr == &dev_attr_vpd_pg83 && !sdev->vpd_pg83)
return 0;
+ if (attr == &dev_attr_vpd_pg89 && !sdev->vpd_pg89)
+ return 0;
+
return S_IRUGO;
}
@@ -1248,8 +1265,10 @@ static struct attribute *scsi_sdev_attrs
};
static struct bin_attribute *scsi_sdev_bin_attrs[] = {
+ &dev_attr_vpd_pg0,
&dev_attr_vpd_pg83,
&dev_attr_vpd_pg80,
+ &dev_attr_vpd_pg89,
&dev_attr_inquiry,
NULL
};
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -140,8 +140,10 @@ struct scsi_device {
const char * rev; /* ... "nullnullnullnull" before scan */
#define SCSI_VPD_PG_LEN 255
+ struct scsi_vpd __rcu *vpd_pg0;
struct scsi_vpd __rcu *vpd_pg83;
struct scsi_vpd __rcu *vpd_pg80;
+ struct scsi_vpd __rcu *vpd_pg89;
unsigned char current_tag; /* current tag */
struct scsi_target *sdev_target; /* used only for single_lun */

737
target/linux/generic/backport-5.4/801-v5.5-hwmon-Driver-for-disk-and-solid-state-drives-with-te.patch Normal file
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@ -0,0 +1,737 @@
From 5b46903d8bf372e563bf2150d46b87fff197a109 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 28 Nov 2019 21:34:40 -0800
Subject: [PATCH] hwmon: Driver for disk and solid state drives with
temperature sensors
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Reading the temperature of ATA drives has been supported for years
by userspace tools such as smarttools or hddtemp. The downside of
such tools is that they need to run with super-user privilege, that
the temperatures are not reported by standard tools such as 'sensors'
or 'libsensors', and that drive temperatures are not available for use
in the kernel's thermal subsystem.
This driver solves this problem by adding support for reading the
temperature of ATA drives from the kernel using the hwmon API and
by adding a temperature zone for each drive.
With this driver, the hard disk temperature can be read using the
unprivileged 'sensors' application:
$ sensors drivetemp-scsi-1-0
drivetemp-scsi-1-0
Adapter: SCSI adapter
temp1: +23.0°C
or directly from sysfs:
$ grep . /sys/class/hwmon/hwmon9/{name,temp1_input}
/sys/class/hwmon/hwmon9/name:drivetemp
/sys/class/hwmon/hwmon9/temp1_input:23000
If the drive supports SCT transport and reports temperature limits,
those are reported as well.
drivetemp-scsi-0-0
Adapter: SCSI adapter
temp1: +27.0°C (low = +0.0°C, high = +60.0°C)
(crit low = -41.0°C, crit = +85.0°C)
(lowest = +23.0°C, highest = +34.0°C)
The driver attempts to use SCT Command Transport to read the drive
temperature. If the SCT Command Transport feature set is not available,
or if it does not report the drive temperature, drive temperatures may
be readable through SMART attributes. Since SMART attributes are not well
defined, this method is only used as fallback mechanism.
Cc: Chris Healy <cphealy@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
Documentation/hwmon/drivetemp.rst | 52 +++
Documentation/hwmon/index.rst | 1 +
drivers/hwmon/Kconfig | 10 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/drivetemp.c | 574 ++++++++++++++++++++++++++++++
5 files changed, 638 insertions(+)
create mode 100644 Documentation/hwmon/drivetemp.rst
create mode 100644 drivers/hwmon/drivetemp.c
--- /dev/null
+++ b/Documentation/hwmon/drivetemp.rst
@@ -0,0 +1,52 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver drivetemp
+=======================
+
+
+References
+----------
+
+ANS T13/1699-D
+Information technology - AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS)
+
+ANS Project T10/BSR INCITS 513
+Information technology - SCSI Primary Commands - 4 (SPC-4)
+
+ANS Project INCITS 557
+Information technology - SCSI / ATA Translation - 5 (SAT-5)
+
+
+Description
+-----------
+
+This driver supports reporting the temperature of disk and solid state
+drives with temperature sensors.
+
+If supported, it uses the ATA SCT Command Transport feature to read
+the current drive temperature and, if available, temperature limits
+as well as historic minimum and maximum temperatures. If SCT Command
+Transport is not supported, the driver uses SMART attributes to read
+the drive temperature.
+
+
+Sysfs entries
+-------------
+
+Only the temp1_input attribute is always available. Other attributes are
+available only if reported by the drive. All temperatures are reported in
+milli-degrees Celsius.
+
+======================= =====================================================
+temp1_input Current drive temperature
+temp1_lcrit Minimum temperature limit. Operating the device below
+ this temperature may cause physical damage to the
+ device.
+temp1_min Minimum recommended continuous operating limit
+temp1_max Maximum recommended continuous operating temperature
+temp1_crit Maximum temperature limit. Operating the device above
+ this temperature may cause physical damage to the
+ device.
+temp1_lowest Minimum temperature seen this power cycle
+temp1_highest Maximum temperature seen this power cycle
+======================= =====================================================
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -45,6 +45,7 @@ Hardware Monitoring Kernel Drivers
da9052
da9055
dme1737
+ drivetemp
ds1621
ds620
emc1403
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -385,6 +385,16 @@ config SENSORS_ATXP1
This driver can also be built as a module. If so, the module
will be called atxp1.
+config SENSORS_DRIVETEMP
+ tristate "Hard disk drives with temperature sensors"
+ depends on SCSI && ATA
+ help
+ If you say yes you get support for the temperature sensor on
+ hard disk drives.
+
+ This driver can also be built as a module. If so, the module
+ will be called satatemp.
+
config SENSORS_DS620
tristate "Dallas Semiconductor DS620"
depends on I2C
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_SENSORS_DA9052_ADC)+= da905
obj-$(CONFIG_SENSORS_DA9055)+= da9055-hwmon.o
obj-$(CONFIG_SENSORS_DELL_SMM) += dell-smm-hwmon.o
obj-$(CONFIG_SENSORS_DME1737) += dme1737.o
+obj-$(CONFIG_SENSORS_DRIVETEMP) += drivetemp.o
obj-$(CONFIG_SENSORS_DS620) += ds620.o
obj-$(CONFIG_SENSORS_DS1621) += ds1621.o
obj-$(CONFIG_SENSORS_EMC1403) += emc1403.o
--- /dev/null
+++ b/drivers/hwmon/drivetemp.c
@@ -0,0 +1,574 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hwmon client for disk and solid state drives with temperature sensors
+ * Copyright (C) 2019 Zodiac Inflight Innovations
+ *
+ * With input from:
+ * Hwmon client for S.M.A.R.T. hard disk drives with temperature sensors.
+ * (C) 2018 Linus Walleij
+ *
+ * hwmon: Driver for SCSI/ATA temperature sensors
+ * by Constantin Baranov <const@mimas.ru>, submitted September 2009
+ *
+ * This drive supports reporting the temperatire of SATA drives. It can be
+ * easily extended to report the temperature of SCSI drives.
+ *
+ * The primary means to read drive temperatures and temperature limits
+ * for ATA drives is the SCT Command Transport feature set as specified in
+ * ATA8-ACS.
+ * It can be used to read the current drive temperature, temperature limits,
+ * and historic minimum and maximum temperatures. The SCT Command Transport
+ * feature set is documented in "AT Attachment 8 - ATA/ATAPI Command Set
+ * (ATA8-ACS)".
+ *
+ * If the SCT Command Transport feature set is not available, drive temperatures
+ * may be readable through SMART attributes. Since SMART attributes are not well
+ * defined, this method is only used as fallback mechanism.
+ *
+ * There are three SMART attributes which may report drive temperatures.
+ * Those are defined as follows (from
+ * http://www.cropel.com/library/smart-attribute-list.aspx).
+ *
+ * 190 Temperature Temperature, monitored by a sensor somewhere inside
+ * the drive. Raw value typicaly holds the actual
+ * temperature (hexadecimal) in its rightmost two digits.
+ *
+ * 194 Temperature Temperature, monitored by a sensor somewhere inside
+ * the drive. Raw value typicaly holds the actual
+ * temperature (hexadecimal) in its rightmost two digits.
+ *
+ * 231 Temperature Temperature, monitored by a sensor somewhere inside
+ * the drive. Raw value typicaly holds the actual
+ * temperature (hexadecimal) in its rightmost two digits.
+ *
+ * Wikipedia defines attributes a bit differently.
+ *
+ * 190 Temperature Value is equal to (100-temp. °C), allowing manufacturer
+ * Difference or to set a minimum threshold which corresponds to a
+ * Airflow maximum temperature. This also follows the convention of
+ * Temperature 100 being a best-case value and lower values being
+ * undesirable. However, some older drives may instead
+ * report raw Temperature (identical to 0xC2) or
+ * Temperature minus 50 here.
+ * 194 Temperature or Indicates the device temperature, if the appropriate
+ * Temperature sensor is fitted. Lowest byte of the raw value contains
+ * Celsius the exact temperature value (Celsius degrees).
+ * 231 Life Left Indicates the approximate SSD life left, in terms of
+ * (SSDs) or program/erase cycles or available reserved blocks.
+ * Temperature A normalized value of 100 represents a new drive, with
+ * a threshold value at 10 indicating a need for
+ * replacement. A value of 0 may mean that the drive is
+ * operating in read-only mode to allow data recovery.
+ * Previously (pre-2010) occasionally used for Drive
+ * Temperature (more typically reported at 0xC2).
+ *
+ * Common denominator is that the first raw byte reports the temperature
+ * in degrees C on almost all drives. Some drives may report a fractional
+ * temperature in the second raw byte.
+ *
+ * Known exceptions (from libatasmart):
+ * - SAMSUNG SV0412H and SAMSUNG SV1204H) report the temperature in 10th
+ * degrees C in the first two raw bytes.
+ * - A few Maxtor drives report an unknown or bad value in attribute 194.
+ * - Certain Apple SSD drives report an unknown value in attribute 190.
+ * Only certain firmware versions are affected.
+ *
+ * Those exceptions affect older ATA drives and are currently ignored.
+ * Also, the second raw byte (possibly reporting the fractional temperature)
+ * is currently ignored.
+ *
+ * Many drives also report temperature limits in additional SMART data raw
+ * bytes. The format of those is not well defined and varies widely.
+ * The driver does not currently attempt to report those limits.
+ *
+ * According to data in smartmontools, attribute 231 is rarely used to report
+ * drive temperatures. At the same time, several drives report SSD life left
+ * in attribute 231, but do not support temperature sensors. For this reason,
+ * attribute 231 is currently ignored.
+ *
+ * Following above definitions, temperatures are reported as follows.
+ * If SCT Command Transport is supported, it is used to read the
+ * temperature and, if available, temperature limits.
+ * - Otherwise, if SMART attribute 194 is supported, it is used to read
+ * the temperature.
+ * - Otherwise, if SMART attribute 190 is supported, it is used to read
+ * the temperature.
+ */
+
+#include <linux/ata.h>
+#include <linux/bits.h>
+#include <linux/device.h>
+#include <linux/hwmon.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_driver.h>
+#include <scsi/scsi_proto.h>
+
+struct drivetemp_data {
+ struct list_head list; /* list of instantiated devices */
+ struct mutex lock; /* protect data buffer accesses */
+ struct scsi_device *sdev; /* SCSI device */
+ struct device *dev; /* instantiating device */
+ struct device *hwdev; /* hardware monitoring device */
+ u8 smartdata[ATA_SECT_SIZE]; /* local buffer */
+ int (*get_temp)(struct drivetemp_data *st, u32 attr, long *val);
+ bool have_temp_lowest; /* lowest temp in SCT status */
+ bool have_temp_highest; /* highest temp in SCT status */
+ bool have_temp_min; /* have min temp */
+ bool have_temp_max; /* have max temp */
+ bool have_temp_lcrit; /* have lower critical limit */
+ bool have_temp_crit; /* have critical limit */
+ int temp_min; /* min temp */
+ int temp_max; /* max temp */
+ int temp_lcrit; /* lower critical limit */
+ int temp_crit; /* critical limit */
+};
+
+static LIST_HEAD(drivetemp_devlist);
+
+#define ATA_MAX_SMART_ATTRS 30
+#define SMART_TEMP_PROP_190 190
+#define SMART_TEMP_PROP_194 194
+
+#define SCT_STATUS_REQ_ADDR 0xe0
+#define SCT_STATUS_VERSION_LOW 0 /* log byte offsets */
+#define SCT_STATUS_VERSION_HIGH 1
+#define SCT_STATUS_TEMP 200
+#define SCT_STATUS_TEMP_LOWEST 201
+#define SCT_STATUS_TEMP_HIGHEST 202
+#define SCT_READ_LOG_ADDR 0xe1
+#define SMART_READ_LOG 0xd5
+#define SMART_WRITE_LOG 0xd6
+
+#define INVALID_TEMP 0x80
+
+#define temp_is_valid(temp) ((temp) != INVALID_TEMP)
+#define temp_from_sct(temp) (((s8)(temp)) * 1000)
+
+static inline bool ata_id_smart_supported(u16 *id)
+{
+ return id[ATA_ID_COMMAND_SET_1] & BIT(0);
+}
+
+static inline bool ata_id_smart_enabled(u16 *id)
+{
+ return id[ATA_ID_CFS_ENABLE_1] & BIT(0);
+}
+
+static int drivetemp_scsi_command(struct drivetemp_data *st,
+ u8 ata_command, u8 feature,
+ u8 lba_low, u8 lba_mid, u8 lba_high)
+{
+ u8 scsi_cmd[MAX_COMMAND_SIZE];
+ int data_dir;
+
+ memset(scsi_cmd, 0, sizeof(scsi_cmd));
+ scsi_cmd[0] = ATA_16;
+ if (ata_command == ATA_CMD_SMART && feature == SMART_WRITE_LOG) {
+ scsi_cmd[1] = (5 << 1); /* PIO Data-out */
+ /*
+ * No off.line or cc, write to dev, block count in sector count
+ * field.
+ */
+ scsi_cmd[2] = 0x06;
+ data_dir = DMA_TO_DEVICE;
+ } else {
+ scsi_cmd[1] = (4 << 1); /* PIO Data-in */
+ /*
+ * No off.line or cc, read from dev, block count in sector count
+ * field.
+ */
+ scsi_cmd[2] = 0x0e;
+ data_dir = DMA_FROM_DEVICE;
+ }
+ scsi_cmd[4] = feature;
+ scsi_cmd[6] = 1; /* 1 sector */
+ scsi_cmd[8] = lba_low;
+ scsi_cmd[10] = lba_mid;
+ scsi_cmd[12] = lba_high;
+ scsi_cmd[14] = ata_command;
+
+ return scsi_execute_req(st->sdev, scsi_cmd, data_dir,
+ st->smartdata, ATA_SECT_SIZE, NULL, HZ, 5,
+ NULL);
+}
+
+static int drivetemp_ata_command(struct drivetemp_data *st, u8 feature,
+ u8 select)
+{
+ return drivetemp_scsi_command(st, ATA_CMD_SMART, feature, select,
+ ATA_SMART_LBAM_PASS, ATA_SMART_LBAH_PASS);
+}
+
+static int drivetemp_get_smarttemp(struct drivetemp_data *st, u32 attr,
+ long *temp)
+{
+ u8 *buf = st->smartdata;
+ bool have_temp = false;
+ u8 temp_raw;
+ u8 csum;
+ int err;
+ int i;
+
+ err = drivetemp_ata_command(st, ATA_SMART_READ_VALUES, 0);
+ if (err)
+ return err;
+
+ /* Checksum the read value table */
+ csum = 0;
+ for (i = 0; i < ATA_SECT_SIZE; i++)
+ csum += buf[i];
+ if (csum) {
+ dev_dbg(&st->sdev->sdev_gendev,
+ "checksum error reading SMART values\n");
+ return -EIO;
+ }
+
+ for (i = 0; i < ATA_MAX_SMART_ATTRS; i++) {
+ u8 *attr = buf + i * 12;
+ int id = attr[2];
+
+ if (!id)
+ continue;
+
+ if (id == SMART_TEMP_PROP_190) {
+ temp_raw = attr[7];
+ have_temp = true;
+ }
+ if (id == SMART_TEMP_PROP_194) {
+ temp_raw = attr[7];
+ have_temp = true;
+ break;
+ }
+ }
+
+ if (have_temp) {
+ *temp = temp_raw * 1000;
+ return 0;
+ }
+
+ return -ENXIO;
+}
+
+static int drivetemp_get_scttemp(struct drivetemp_data *st, u32 attr, long *val)
+{
+ u8 *buf = st->smartdata;
+ int err;
+
+ err = drivetemp_ata_command(st, SMART_READ_LOG, SCT_STATUS_REQ_ADDR);
+ if (err)
+ return err;
+ switch (attr) {
+ case hwmon_temp_input:
+ *val = temp_from_sct(buf[SCT_STATUS_TEMP]);
+ break;
+ case hwmon_temp_lowest:
+ *val = temp_from_sct(buf[SCT_STATUS_TEMP_LOWEST]);
+ break;
+ case hwmon_temp_highest:
+ *val = temp_from_sct(buf[SCT_STATUS_TEMP_HIGHEST]);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+ return err;
+}
+
+static int drivetemp_identify_sata(struct drivetemp_data *st)
+{
+ struct scsi_device *sdev = st->sdev;
+ u8 *buf = st->smartdata;
+ struct scsi_vpd *vpd;
+ bool is_ata, is_sata;
+ bool have_sct_data_table;
+ bool have_sct_temp;
+ bool have_smart;
+ bool have_sct;
+ u16 *ata_id;
+ u16 version;
+ long temp;
+ int err;
+
+ /* SCSI-ATA Translation present? */
+ rcu_read_lock();
+ vpd = rcu_dereference(sdev->vpd_pg89);
+
+ /*
+ * Verify that ATA IDENTIFY DEVICE data is included in ATA Information
+ * VPD and that the drive implements the SATA protocol.
+ */
+ if (!vpd || vpd->len < 572 || vpd->data[56] != ATA_CMD_ID_ATA ||
+ vpd->data[36] != 0x34) {
+ rcu_read_unlock();
+ return -ENODEV;
+ }
+ ata_id = (u16 *)&vpd->data[60];
+ is_ata = ata_id_is_ata(ata_id);
+ is_sata = ata_id_is_sata(ata_id);
+ have_sct = ata_id_sct_supported(ata_id);
+ have_sct_data_table = ata_id_sct_data_tables(ata_id);
+ have_smart = ata_id_smart_supported(ata_id) &&
+ ata_id_smart_enabled(ata_id);
+
+ rcu_read_unlock();
+
+ /* bail out if this is not a SATA device */
+ if (!is_ata || !is_sata)
+ return -ENODEV;
+ if (!have_sct)
+ goto skip_sct;
+
+ err = drivetemp_ata_command(st, SMART_READ_LOG, SCT_STATUS_REQ_ADDR);
+ if (err)
+ goto skip_sct;
+
+ version = (buf[SCT_STATUS_VERSION_HIGH] << 8) |
+ buf[SCT_STATUS_VERSION_LOW];
+ if (version != 2 && version != 3)
+ goto skip_sct;
+
+ have_sct_temp = temp_is_valid(buf[SCT_STATUS_TEMP]);
+ if (!have_sct_temp)
+ goto skip_sct;
+
+ st->have_temp_lowest = temp_is_valid(buf[SCT_STATUS_TEMP_LOWEST]);
+ st->have_temp_highest = temp_is_valid(buf[SCT_STATUS_TEMP_HIGHEST]);
+
+ if (!have_sct_data_table)
+ goto skip_sct;
+
+ /* Request and read temperature history table */
+ memset(buf, '\0', sizeof(st->smartdata));
+ buf[0] = 5; /* data table command */
+ buf[2] = 1; /* read table */
+ buf[4] = 2; /* temperature history table */
+
+ err = drivetemp_ata_command(st, SMART_WRITE_LOG, SCT_STATUS_REQ_ADDR);
+ if (err)
+ goto skip_sct_data;
+
+ err = drivetemp_ata_command(st, SMART_READ_LOG, SCT_READ_LOG_ADDR);
+ if (err)
+ goto skip_sct_data;
+
+ /*
+ * Temperature limits per AT Attachment 8 -
+ * ATA/ATAPI Command Set (ATA8-ACS)
+ */
+ st->have_temp_max = temp_is_valid(buf[6]);
+ st->have_temp_crit = temp_is_valid(buf[7]);
+ st->have_temp_min = temp_is_valid(buf[8]);
+ st->have_temp_lcrit = temp_is_valid(buf[9]);
+
+ st->temp_max = temp_from_sct(buf[6]);
+ st->temp_crit = temp_from_sct(buf[7]);
+ st->temp_min = temp_from_sct(buf[8]);
+ st->temp_lcrit = temp_from_sct(buf[9]);
+
+skip_sct_data:
+ if (have_sct_temp) {
+ st->get_temp = drivetemp_get_scttemp;
+ return 0;
+ }
+skip_sct:
+ if (!have_smart)
+ return -ENODEV;
+ st->get_temp = drivetemp_get_smarttemp;
+ return drivetemp_get_smarttemp(st, hwmon_temp_input, &temp);
+}
+
+static int drivetemp_identify(struct drivetemp_data *st)
+{
+ struct scsi_device *sdev = st->sdev;
+
+ /* Bail out immediately if there is no inquiry data */
+ if (!sdev->inquiry || sdev->inquiry_len < 16)
+ return -ENODEV;
+
+ /* Disk device? */
+ if (sdev->type != TYPE_DISK && sdev->type != TYPE_ZBC)
+ return -ENODEV;
+
+ return drivetemp_identify_sata(st);
+}
+
+static int drivetemp_read(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
+{
+ struct drivetemp_data *st = dev_get_drvdata(dev);
+ int err = 0;
+
+ if (type != hwmon_temp)
+ return -EINVAL;
+
+ switch (attr) {
+ case hwmon_temp_input:
+ case hwmon_temp_lowest:
+ case hwmon_temp_highest:
+ mutex_lock(&st->lock);
+ err = st->get_temp(st, attr, val);
+ mutex_unlock(&st->lock);
+ break;
+ case hwmon_temp_lcrit:
+ *val = st->temp_lcrit;
+ break;
+ case hwmon_temp_min:
+ *val = st->temp_min;
+ break;
+ case hwmon_temp_max:
+ *val = st->temp_max;
+ break;
+ case hwmon_temp_crit:
+ *val = st->temp_crit;
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+ return err;
+}
+
+static umode_t drivetemp_is_visible(const void *data,
+ enum hwmon_sensor_types type,
+ u32 attr, int channel)
+{
+ const struct drivetemp_data *st = data;
+
+ switch (type) {
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp_input:
+ return 0444;
+ case hwmon_temp_lowest:
+ if (st->have_temp_lowest)
+ return 0444;
+ break;
+ case hwmon_temp_highest:
+ if (st->have_temp_highest)
+ return 0444;
+ break;
+ case hwmon_temp_min:
+ if (st->have_temp_min)
+ return 0444;
+ break;
+ case hwmon_temp_max:
+ if (st->have_temp_max)
+ return 0444;
+ break;
+ case hwmon_temp_lcrit:
+ if (st->have_temp_lcrit)
+ return 0444;
+ break;
+ case hwmon_temp_crit:
+ if (st->have_temp_crit)
+ return 0444;
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static const struct hwmon_channel_info *drivetemp_info[] = {
+ HWMON_CHANNEL_INFO(chip,
+ HWMON_C_REGISTER_TZ),
+ HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT |
+ HWMON_T_LOWEST | HWMON_T_HIGHEST |
+ HWMON_T_MIN | HWMON_T_MAX |
+ HWMON_T_LCRIT | HWMON_T_CRIT),
+ NULL
+};
+
+static const struct hwmon_ops drivetemp_ops = {
+ .is_visible = drivetemp_is_visible,
+ .read = drivetemp_read,
+};
+
+static const struct hwmon_chip_info drivetemp_chip_info = {
+ .ops = &drivetemp_ops,
+ .info = drivetemp_info,
+};
+
+/*
+ * The device argument points to sdev->sdev_dev. Its parent is
+ * sdev->sdev_gendev, which we can use to get the scsi_device pointer.
+ */
+static int drivetemp_add(struct device *dev, struct class_interface *intf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev->parent);
+ struct drivetemp_data *st;
+ int err;
+
+ st = kzalloc(sizeof(*st), GFP_KERNEL);
+ if (!st)
+ return -ENOMEM;
+
+ st->sdev = sdev;
+ st->dev = dev;
+ mutex_init(&st->lock);
+
+ if (drivetemp_identify(st)) {
+ err = -ENODEV;
+ goto abort;
+ }
+
+ st->hwdev = hwmon_device_register_with_info(dev->parent, "drivetemp",
+ st, &drivetemp_chip_info,
+ NULL);
+ if (IS_ERR(st->hwdev)) {
+ err = PTR_ERR(st->hwdev);
+ goto abort;
+ }
+
+ list_add(&st->list, &drivetemp_devlist);
+ return 0;
+
+abort:
+ kfree(st);
+ return err;
+}
+
+static void drivetemp_remove(struct device *dev, struct class_interface *intf)
+{
+ struct drivetemp_data *st, *tmp;
+
+ list_for_each_entry_safe(st, tmp, &drivetemp_devlist, list) {
+ if (st->dev == dev) {
+ list_del(&st->list);
+ hwmon_device_unregister(st->hwdev);
+ kfree(st);
+ break;
+ }
+ }
+}
+
+static struct class_interface drivetemp_interface = {
+ .add_dev = drivetemp_add,
+ .remove_dev = drivetemp_remove,
+};
+
+static int __init drivetemp_init(void)
+{
+ return scsi_register_interface(&drivetemp_interface);
+}
+
+static void __exit drivetemp_exit(void)
+{
+ scsi_unregister_interface(&drivetemp_interface);
+}
+
+module_init(drivetemp_init);
+module_exit(drivetemp_exit);
+
+MODULE_AUTHOR("Guenter Roeck <linus@roeck-us.net>");
+MODULE_DESCRIPTION("Hard drive temperature monitor");
+MODULE_LICENSE("GPL");

36
target/linux/generic/backport-5.4/801-v5.6-leds-populate-the-device-s-of_node.patch Normal file
View File

@ -0,0 +1,36 @@
From 7a349e8c535d7327bf80710323c725df47149b8d Mon Sep 17 00:00:00 2001
From: Jean-Jacques Hiblot <jjhiblot@ti.com>
Date: Sun, 5 Jan 2020 23:31:14 +0100
Subject: [PATCH] leds: populate the device's of_node
If initialization data is available and its fwnode is actually a
of_node, store this information in the led device's structure. This
will allow the device to use or provide OF-based API such (devm_xxx).
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
[backport to 5.4]
---
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -19,6 +19,7 @@
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <uapi/linux/uleds.h>
+#include <linux/of.h>
#include "leds.h"
static struct class *leds_class;
@@ -276,8 +277,10 @@ int led_classdev_register_ext(struct dev
mutex_unlock(&led_cdev->led_access);
return PTR_ERR(led_cdev->dev);
}
- if (init_data && init_data->fwnode)
+ if (init_data && init_data->fwnode) {
led_cdev->dev->fwnode = init_data->fwnode;
+ led_cdev->dev->of_node = to_of_node(init_data->fwnode);
+ }
if (ret)
dev_warn(parent, "Led %s renamed to %s due to name collision",

6499
target/linux/generic/config-5.4 Normal file
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File diff suppressed because it is too large Load Diff

204
target/linux/generic/hack-5.4/204-module_strip.patch Normal file
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@ -0,0 +1,204 @@
From a779a482fb9b9f8fcdf8b2519c789b4b9bb5dd05 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 16:56:48 +0200
Subject: build: add a hack for removing non-essential module info
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/linux/module.h | 13 ++++++++-----
include/linux/moduleparam.h | 15 ++++++++++++---
init/Kconfig | 7 +++++++
kernel/module.c | 5 ++++-
scripts/mod/modpost.c | 12 ++++++++++++
5 files changed, 43 insertions(+), 9 deletions(-)
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -157,6 +157,7 @@ extern void cleanup_module(void);
/* Generic info of form tag = "info" */
#define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
+#define MODULE_INFO_STRIP(tag, info) __MODULE_INFO_STRIP(tag, tag, info)
/* For userspace: you can also call me... */
#define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
@@ -216,12 +217,12 @@ extern void cleanup_module(void);
* Author(s), use "Name <email>" or just "Name", for multiple
* authors use multiple MODULE_AUTHOR() statements/lines.
*/
-#define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
+#define MODULE_AUTHOR(_author) MODULE_INFO_STRIP(author, _author)
/* What your module does. */
-#define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description)
+#define MODULE_DESCRIPTION(_description) MODULE_INFO_STRIP(description, _description)
-#ifdef MODULE
+#if defined(MODULE) && !defined(CONFIG_MODULE_STRIPPED)
/* Creates an alias so file2alias.c can find device table. */
#define MODULE_DEVICE_TABLE(type, name) \
extern typeof(name) __mod_##type##__##name##_device_table \
@@ -248,7 +249,9 @@ extern typeof(name) __mod_##type##__##na
*/
#if defined(MODULE) || !defined(CONFIG_SYSFS)
-#define MODULE_VERSION(_version) MODULE_INFO(version, _version)
+#define MODULE_VERSION(_version) MODULE_INFO_STRIP(version, _version)
+#elif defined(CONFIG_MODULE_STRIPPED)
+#define MODULE_VERSION(_version) __MODULE_INFO_DISABLED(version)
#else
#define MODULE_VERSION(_version) \
MODULE_INFO(version, _version); \
@@ -271,7 +274,7 @@ extern typeof(name) __mod_##type##__##na
/* Optional firmware file (or files) needed by the module
* format is simply firmware file name. Multiple firmware
* files require multiple MODULE_FIRMWARE() specifiers */
-#define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
+#define MODULE_FIRMWARE(_firmware) MODULE_INFO_STRIP(firmware, _firmware)
#define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns)
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -20,10 +20,24 @@
/* Chosen so that structs with an unsigned long line up. */
#define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long))
+/* This struct is here for syntactic coherency, it is not used */
+#define __MODULE_INFO_DISABLED(name) \
+ struct __UNIQUE_ID(name) {}
+
+#ifdef CONFIG_MODULE_STRIPPED
+#define __MODULE_INFO_STRIP(tag, name, info) __MODULE_INFO_DISABLED(name)
+#else
+#define __MODULE_INFO_STRIP(tag, name, info) __MODULE_INFO(tag, name, info)
+#endif
+
+#ifdef MODULE
#define __MODULE_INFO(tag, name, info) \
static const char __UNIQUE_ID(name)[] \
__used __attribute__((section(".modinfo"), unused, aligned(1))) \
= __MODULE_INFO_PREFIX __stringify(tag) "=" info
+#else
+#define __MODULE_INFO(tag, name, info) __MODULE_INFO_DISABLED(name)
+#endif
#define __MODULE_PARM_TYPE(name, _type) \
__MODULE_INFO(parmtype, name##type, #name ":" _type)
@@ -31,7 +45,7 @@ static const char __UNIQUE_ID(name)[]
/* One for each parameter, describing how to use it. Some files do
multiple of these per line, so can't just use MODULE_INFO. */
#define MODULE_PARM_DESC(_parm, desc) \
- __MODULE_INFO(parm, _parm, #_parm ":" desc)
+ __MODULE_INFO_STRIP(parm, _parm, #_parm ":" desc)
struct kernel_param;
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2213,6 +2213,13 @@ config TRIM_UNUSED_KSYMS
If unsure, or if you need to build out-of-tree modules, say N.
+config MODULE_STRIPPED
+ bool "Reduce module size"
+ depends on MODULES
+ help
+ Remove module parameter descriptions, author info, version, aliases,
+ device tables, etc.
+
endif # MODULES
config MODULES_TREE_LOOKUP
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3107,9 +3107,11 @@ static int setup_load_info(struct load_i
static int check_modinfo(struct module *mod, struct load_info *info, int flags)
{
- const char *modmagic = get_modinfo(info, "vermagic");
int err;
+#ifndef CONFIG_MODULE_STRIPPED
+ const char *modmagic = get_modinfo(info, "vermagic");
+
if (flags & MODULE_INIT_IGNORE_VERMAGIC)
modmagic = NULL;
@@ -3130,6 +3132,7 @@ static int check_modinfo(struct module *
mod->name);
add_taint_module(mod, TAINT_OOT_MODULE, LOCKDEP_STILL_OK);
}
+#endif
check_modinfo_retpoline(mod, info);
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2056,7 +2056,9 @@ static void read_symbols(const char *mod
symname = remove_dot(info.strtab + sym->st_name);
handle_modversions(mod, &info, sym, symname);
+#ifndef CONFIG_MODULE_STRIPPED
handle_moddevtable(mod, &info, sym, symname);
+#endif
}
/* Apply symbol namespaces from __kstrtabns_<symbol> entries. */
@@ -2270,8 +2272,10 @@ static void add_header(struct buffer *b,
buf_printf(b, "\n");
buf_printf(b, "BUILD_SALT;\n");
buf_printf(b, "\n");
+#ifndef CONFIG_MODULE_STRIPPED
buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
buf_printf(b, "MODULE_INFO(name, KBUILD_MODNAME);\n");
+#endif
buf_printf(b, "\n");
buf_printf(b, "__visible struct module __this_module\n");
buf_printf(b, "__section(.gnu.linkonce.this_module) = {\n");
@@ -2288,8 +2292,10 @@ static void add_header(struct buffer *b,
static void add_intree_flag(struct buffer *b, int is_intree)
{
+#ifndef CONFIG_MODULE_STRIPPED
if (is_intree)
buf_printf(b, "\nMODULE_INFO(intree, \"Y\");\n");
+#endif
}
/* Cannot check for assembler */
@@ -2302,8 +2308,10 @@ static void add_retpoline(struct buffer
static void add_staging_flag(struct buffer *b, const char *name)
{
+#ifndef CONFIG_MODULE_STRIPPED
if (strstarts(name, "drivers/staging"))
buf_printf(b, "\nMODULE_INFO(staging, \"Y\");\n");
+#endif
}
/**
@@ -2387,11 +2395,13 @@ static void add_depends(struct buffer *b
static void add_srcversion(struct buffer *b, struct module *mod)
{
+#ifndef CONFIG_MODULE_STRIPPED
if (mod->srcversion[0]) {
buf_printf(b, "\n");
buf_printf(b, "MODULE_INFO(srcversion, \"%s\");\n",
mod->srcversion);
}
+#endif
}
static void write_if_changed(struct buffer *b, const char *fname)
@@ -2661,7 +2671,9 @@ int main(int argc, char **argv)
add_staging_flag(&buf, mod->name);
err |= add_versions(&buf, mod);
add_depends(&buf, mod);
+#ifndef CONFIG_MODULE_STRIPPED
add_moddevtable(&buf, mod);
+#endif
add_srcversion(&buf, mod);
sprintf(fname, "%s.mod.c", mod->name);

3053
target/linux/generic/hack-5.4/210-darwin_scripts_include.patch Normal file
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File diff suppressed because it is too large Load Diff

22
target/linux/generic/hack-5.4/211-darwin-uuid-typedef-clash.patch Normal file
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@ -0,0 +1,22 @@
From e44fc2af1ddc452b6659d08c16973d65c73b7d0a Mon Sep 17 00:00:00 2001
From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Date: Wed, 5 Feb 2020 18:36:43 +0000
Subject: [PATCH] file2alias: build on macos
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
---
scripts/mod/file2alias.c | 3 +++
1 file changed, 3 insertions(+)
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -38,6 +38,9 @@ typedef struct {
__u8 b[16];
} guid_t;
+#ifdef __APPLE__
+#define uuid_t compat_uuid_t
+#endif
/* backwards compatibility, don't use in new code */
typedef struct {
__u8 b[16];

65
target/linux/generic/hack-5.4/212-byteshift_portability.patch Normal file
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@ -0,0 +1,65 @@
From 48232d3d931c95953ce2ddfe7da7bb164aef6a73 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:03:16 +0200
Subject: linux-3.6: fix portability of some includes files in tools/ used on the host
lede-commit: 6040b1d29ab1f047c5e49b748abcb6a3196add28
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
tools/include/tools/be_byteshift.h | 4 ++++
tools/include/tools/le_byteshift.h | 4 ++++
tools/include/tools/linux_types.h | 22 ++++++++++++++++++++++
3 files changed, 30 insertions(+)
create mode 100644 tools/include/tools/linux_types.h
--- a/tools/include/tools/be_byteshift.h
+++ b/tools/include/tools/be_byteshift.h
@@ -2,6 +2,10 @@
#ifndef _TOOLS_BE_BYTESHIFT_H
#define _TOOLS_BE_BYTESHIFT_H
+#ifndef __linux__
+#include "linux_types.h"
+#endif
+
#include <stdint.h>
static inline uint16_t __get_unaligned_be16(const uint8_t *p)
--- a/tools/include/tools/le_byteshift.h
+++ b/tools/include/tools/le_byteshift.h
@@ -2,6 +2,10 @@
#ifndef _TOOLS_LE_BYTESHIFT_H
#define _TOOLS_LE_BYTESHIFT_H
+#ifndef __linux__
+#include "linux_types.h"
+#endif
+
#include <stdint.h>
static inline uint16_t __get_unaligned_le16(const uint8_t *p)
--- /dev/null
+++ b/tools/include/tools/linux_types.h
@@ -0,0 +1,22 @@
+#ifndef __LINUX_TYPES_H
+#define __LINUX_TYPES_H
+
+#include <stdint.h>
+
+typedef uint8_t __u8;
+typedef uint8_t __be8;
+typedef uint8_t __le8;
+
+typedef uint16_t __u16;
+typedef uint16_t __be16;
+typedef uint16_t __le16;
+
+typedef uint32_t __u32;
+typedef uint32_t __be32;
+typedef uint32_t __le32;
+
+typedef uint64_t __u64;
+typedef uint64_t __be64;
+typedef uint64_t __le64;
+
+#endif

24
target/linux/generic/hack-5.4/214-spidev_h_portability.patch Normal file
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@ -0,0 +1,24 @@
From be9be95ff10e16a5b4ad36f903978d0cc5747024 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:04:08 +0200
Subject: kernel: fix linux/spi/spidev.h portability issues with musl
Felix will try to get this define included into musl
lede-commit: 795e7cf60de19e7a076a46874fab7bb88b43bbff
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/uapi/linux/spi/spidev.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/uapi/linux/spi/spidev.h
+++ b/include/uapi/linux/spi/spidev.h
@@ -117,7 +117,7 @@ struct spi_ioc_transfer {
/* not all platforms use <asm-generic/ioctl.h> or _IOC_TYPECHECK() ... */
#define SPI_MSGSIZE(N) \
- ((((N)*(sizeof (struct spi_ioc_transfer))) < (1 << _IOC_SIZEBITS)) \
+ ((((N)*(sizeof (struct spi_ioc_transfer))) < (1 << 13)) \
? ((N)*(sizeof (struct spi_ioc_transfer))) : 0)
#define SPI_IOC_MESSAGE(N) _IOW(SPI_IOC_MAGIC, 0, char[SPI_MSGSIZE(N)])

136
target/linux/generic/hack-5.4/220-gc_sections.patch Normal file
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@ -0,0 +1,136 @@
From e3d8676f5722b7622685581e06e8f53e6138e3ab Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 15 Jul 2017 23:42:36 +0200
Subject: use -ffunction-sections, -fdata-sections and --gc-sections
In combination with kernel symbol export stripping this significantly reduces
the kernel image size. Used on both ARM and MIPS architectures.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
Makefile | 10 +++----
arch/arm/Kconfig | 1 +
arch/arm/boot/compressed/Makefile | 1 +
arch/arm/kernel/vmlinux.lds.S | 26 ++++++++--------
arch/mips/Kconfig | 1 +
arch/mips/kernel/vmlinux.lds.S | 4 +--
include/asm-generic/vmlinux.lds.h | 63 ++++++++++++++++++++-------------------
7 files changed, 55 insertions(+), 51 deletions(-)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -111,6 +111,7 @@ config ARM
select HAVE_UID16
select HAVE_VIRT_CPU_ACCOUNTING_GEN
select IRQ_FORCED_THREADING
+ select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
select MODULES_USE_ELF_REL
select NEED_DMA_MAP_STATE
select OF_EARLY_FLATTREE if OF
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -106,6 +106,7 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
endif
+KBUILD_CFLAGS_KERNEL := $(patsubst -f%-sections,,$(KBUILD_CFLAGS_KERNEL))
# -fstack-protector-strong triggers protection checks in this code,
# but it is being used too early to link to meaningful stack_chk logic.
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -100,24 +100,24 @@ SECTIONS
}
.init.arch.info : {
__arch_info_begin = .;
- *(.arch.info.init)
+ KEEP(*(.arch.info.init))
__arch_info_end = .;
}
.init.tagtable : {
__tagtable_begin = .;
- *(.taglist.init)
+ KEEP(*(.taglist.init))
__tagtable_end = .;
}
#ifdef CONFIG_SMP_ON_UP
.init.smpalt : {
__smpalt_begin = .;
- *(.alt.smp.init)
+ KEEP(*(.alt.smp.init))
__smpalt_end = .;
}
#endif
.init.pv_table : {
__pv_table_begin = .;
- *(.pv_table)
+ KEEP(*(.pv_table))
__pv_table_end = .;
}
--- a/arch/arm/kernel/vmlinux.lds.h
+++ b/arch/arm/kernel/vmlinux.lds.h
@@ -22,13 +22,13 @@
#define ARM_MMU_DISCARD(x)
#else
#define ARM_MMU_KEEP(x)
-#define ARM_MMU_DISCARD(x) x
+#define ARM_MMU_DISCARD(x) KEEP(x)
#endif
#define PROC_INFO \
. = ALIGN(4); \
__proc_info_begin = .; \
- *(.proc.info.init) \
+ KEEP(*(.proc.info.init)) \
__proc_info_end = .;
#define HYPERVISOR_TEXT \
@@ -39,11 +39,11 @@
#define IDMAP_TEXT \
ALIGN_FUNCTION(); \
__idmap_text_start = .; \
- *(.idmap.text) \
+ KEEP(*(.idmap.text)) \
__idmap_text_end = .; \
. = ALIGN(PAGE_SIZE); \
__hyp_idmap_text_start = .; \
- *(.hyp.idmap.text) \
+ KEEP(*(.hyp.idmap.text)) \
__hyp_idmap_text_end = .;
#define ARM_DISCARD \
@@ -86,12 +86,12 @@
. = ALIGN(8); \
.ARM.unwind_idx : { \
__start_unwind_idx = .; \
- *(.ARM.exidx*) \
+ KEEP(*(.ARM.exidx*)) \
__stop_unwind_idx = .; \
} \
.ARM.unwind_tab : { \
__start_unwind_tab = .; \
- *(.ARM.extab*) \
+ KEEP(*(.ARM.extab*)) \
__stop_unwind_tab = .; \
}
@@ -102,14 +102,14 @@
#define ARM_VECTORS \
__vectors_start = .; \
.vectors 0xffff0000 : AT(__vectors_start) { \
- *(.vectors) \
+ KEEP(*(.vectors)) \
} \
. = __vectors_start + SIZEOF(.vectors); \
__vectors_end = .; \
\
__stubs_start = .; \
.stubs ADDR(.vectors) + 0x1000 : AT(__stubs_start) { \
- *(.stubs) \
+ KEEP(*(.stubs)) \
} \
. = __stubs_start + SIZEOF(.stubs); \
__stubs_end = .; \

109
target/linux/generic/hack-5.4/221-module_exports.patch Normal file
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@ -0,0 +1,109 @@
From b14784e7883390c20ed3ff904892255404a5914b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:05:53 +0200
Subject: add an optional config option for stripping all unnecessary symbol exports from the kernel image
lede-commit: bb5a40c64b7c4f4848509fa0a6625055fc9e66cc
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/asm-generic/vmlinux.lds.h | 18 +++++++++++++++---
include/linux/export.h | 9 ++++++++-
scripts/Makefile.build | 2 +-
3 files changed, 24 insertions(+), 5 deletions(-)
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -54,6 +54,16 @@
#define LOAD_OFFSET 0
#endif
+#ifndef SYMTAB_KEEP
+#define SYMTAB_KEEP KEEP(*(SORT(___ksymtab+*)))
+#define SYMTAB_KEEP_GPL KEEP(*(SORT(___ksymtab_gpl+*)))
+#endif
+
+#ifndef SYMTAB_DISCARD
+#define SYMTAB_DISCARD
+#define SYMTAB_DISCARD_GPL
+#endif
+
/* Align . to a 8 byte boundary equals to maximum function alignment. */
#define ALIGN_FUNCTION() . = ALIGN(8)
@@ -405,14 +415,14 @@
/* Kernel symbol table: Normal symbols */ \
__ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
__start___ksymtab = .; \
- KEEP(*(SORT(___ksymtab+*))) \
+ SYMTAB_KEEP \
__stop___ksymtab = .; \
} \
\
/* Kernel symbol table: GPL-only symbols */ \
__ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
__start___ksymtab_gpl = .; \
- KEEP(*(SORT(___ksymtab_gpl+*))) \
+ SYMTAB_KEEP_GPL \
__stop___ksymtab_gpl = .; \
} \
\
@@ -474,7 +484,7 @@
\
/* Kernel symbol table: strings */ \
__ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
- *(__ksymtab_strings) \
+ *(__ksymtab_strings+*) \
} \
\
/* __*init sections */ \
@@ -865,6 +875,8 @@
EXIT_TEXT \
EXIT_DATA \
EXIT_CALL \
+ SYMTAB_DISCARD \
+ SYMTAB_DISCARD_GPL \
*(.discard) \
*(.discard.*) \
*(.modinfo) \
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -98,18 +98,26 @@ struct kernel_symbol {
#else
+#ifdef MODULE
+#define __EXPORT_SUFFIX(sym)
+#else
+#define __EXPORT_SUFFIX(sym) "+" #sym
+#endif
+
#define ___export_symbol_common(sym, sec) \
extern typeof(sym) sym; \
__CRC_SYMBOL(sym, sec); \
static const char __kstrtab_##sym[] \
- __attribute__((section("__ksymtab_strings"), used, aligned(1))) \
+ __attribute__((section("__ksymtab_strings" \
+ __EXPORT_SUFFIX(sym)), used, aligned(1))) \
= #sym \
/* For every exported symbol, place a struct in the __ksymtab section */
#define ___EXPORT_SYMBOL_NS(sym, sec, ns) \
___export_symbol_common(sym, sec); \
static const char __kstrtabns_##sym[] \
- __attribute__((section("__ksymtab_strings"), used, aligned(1))) \
+ __attribute__((section("__ksymtab_strings" \
+ __EXPORT_SUFFIX(sym)), used, aligned(1))) \
= #ns; \
__KSYMTAB_ENTRY_NS(sym, sec)
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -353,7 +353,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(
# Linker scripts preprocessor (.lds.S -> .lds)
# ---------------------------------------------------------------------------
quiet_cmd_cpp_lds_S = LDS $@
- cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
+ cmd_cpp_lds_S = $(CPP) $(EXTRA_LDSFLAGS) $(cpp_flags) -P -U$(ARCH) \
-D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
$(obj)/%.lds: $(src)/%.lds.S FORCE

71
target/linux/generic/hack-5.4/230-openwrt_lzma_options.patch Normal file
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@ -0,0 +1,71 @@
From b3d00b452467f621317953d9e4c6f9ae8dcfd271 Mon Sep 17 00:00:00 2001
From: Imre Kaloz <kaloz@openwrt.org>
Date: Fri, 7 Jul 2017 17:06:55 +0200
Subject: use the openwrt lzma options for now
lede-commit: 548de949f392049420a6a1feeef118b30ab8ea8c
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
lib/decompress.c | 1 +
scripts/Makefile.lib | 2 +-
usr/gen_initramfs_list.sh | 10 +++++-----
3 files changed, 7 insertions(+), 6 deletions(-)
--- a/lib/decompress.c
+++ b/lib/decompress.c
@@ -49,6 +49,7 @@ static const struct compress_format comp
{ {0x1f, 0x9e}, "gzip", gunzip },
{ {0x42, 0x5a}, "bzip2", bunzip2 },
{ {0x5d, 0x00}, "lzma", unlzma },
+ { {0x6d, 0x00}, "lzma-openwrt", unlzma },
{ {0xfd, 0x37}, "xz", unxz },
{ {0x89, 0x4c}, "lzo", unlzo },
{ {0x02, 0x21}, "lz4", unlz4 },
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -328,7 +328,7 @@ quiet_cmd_bzip2 = BZIP2 $@
# ---------------------------------------------------------------------------
quiet_cmd_lzma = LZMA $@
- cmd_lzma = { cat $(real-prereqs) | lzma -9; $(size_append); } > $@
+ cmd_lzma = { cat $(real-prereqs) | lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so; $(size_append); } > $@
quiet_cmd_lzo = LZO $@
cmd_lzo = { cat $(real-prereqs) | lzop -9; $(size_append); } > $@
--- a/usr/gen_initramfs_list.sh
+++ b/usr/gen_initramfs_list.sh
@@ -229,7 +229,7 @@ cpio_list=
output="/dev/stdout"
output_file=""
is_cpio_compressed=
-compr="gzip -n -9 -f"
+compr="gzip -n -9 -f -"
arg="$1"
case "$arg" in
@@ -245,13 +245,13 @@ case "$arg" in
output=${cpio_list}
echo "$output_file" | grep -q "\.gz$" \
&& [ -x "`which gzip 2> /dev/null`" ] \
- && compr="gzip -n -9 -f"
+ && compr="gzip -n -9 -f -"
echo "$output_file" | grep -q "\.bz2$" \
&& [ -x "`which bzip2 2> /dev/null`" ] \
- && compr="bzip2 -9 -f"
+ && compr="bzip2 -9 -f -"
echo "$output_file" | grep -q "\.lzma$" \
&& [ -x "`which lzma 2> /dev/null`" ] \
- && compr="lzma -9 -f"
+ && compr="lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so"
echo "$output_file" | grep -q "\.xz$" \
&& [ -x "`which xz 2> /dev/null`" ] \
&& compr="xz --check=crc32 --lzma2=dict=1MiB"
@@ -320,7 +320,7 @@ if [ ! -z ${output_file} ]; then
if [ "${is_cpio_compressed}" = "compressed" ]; then
cat ${cpio_tfile} > ${output_file}
else
- (cat ${cpio_tfile} | ${compr} - > ${output_file}) \
+ (cat ${cpio_tfile} | ${compr} > ${output_file}) \
|| (rm -f ${output_file} ; false)
fi
[ -z ${cpio_file} ] && rm ${cpio_tfile}

27
target/linux/generic/hack-5.4/250-netfilter_depends.patch Normal file
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@ -0,0 +1,27 @@
From: Felix Fietkau <nbd@nbd.name>
Subject: hack: net: remove bogus netfilter dependencies
lede-commit: 589d2a377dee27d206fc3725325309cf649e4df6
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
net/netfilter/Kconfig | 2 --
1 file changed, 2 deletions(-)
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -240,7 +240,6 @@ config NF_CONNTRACK_FTP
config NF_CONNTRACK_H323
tristate "H.323 protocol support"
- depends on IPV6 || IPV6=n
depends on NETFILTER_ADVANCED
help
H.323 is a VoIP signalling protocol from ITU-T. As one of the most
@@ -1100,7 +1099,6 @@ config NETFILTER_XT_TARGET_SECMARK
config NETFILTER_XT_TARGET_TCPMSS
tristate '"TCPMSS" target support'
- depends on IPV6 || IPV6=n
default m if NETFILTER_ADVANCED=n
---help---
This option adds a `TCPMSS' target, which allows you to alter the

198
target/linux/generic/hack-5.4/251-sound_kconfig.patch Normal file
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@ -0,0 +1,198 @@
From da3c50704f14132f4adf80d48e9a4cd5d46e54c9 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Fri, 7 Jul 2017 17:09:21 +0200
Subject: kconfig: owrt specifc dependencies
Signed-off-by: John Crispin <john@phrozen.org>
---
crypto/Kconfig | 10 +++++-----
drivers/bcma/Kconfig | 1 +
drivers/ssb/Kconfig | 3 ++-
lib/Kconfig | 8 ++++----
net/netfilter/Kconfig | 2 +-
net/wireless/Kconfig | 17 ++++++++++-------
sound/core/Kconfig | 4 ++--
7 files changed, 25 insertions(+), 20 deletions(-)
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -33,7 +33,7 @@ config CRYPTO_FIPS
this is.
config CRYPTO_ALGAPI
- tristate
+ tristate "ALGAPI"
select CRYPTO_ALGAPI2
help
This option provides the API for cryptographic algorithms.
@@ -42,7 +42,7 @@ config CRYPTO_ALGAPI2
tristate
config CRYPTO_AEAD
- tristate
+ tristate "AEAD"
select CRYPTO_AEAD2
select CRYPTO_ALGAPI
@@ -53,7 +53,7 @@ config CRYPTO_AEAD2
select CRYPTO_RNG2
config CRYPTO_BLKCIPHER
- tristate
+ tristate "BLKCIPHER"
select CRYPTO_BLKCIPHER2
select CRYPTO_ALGAPI
@@ -63,7 +63,7 @@ config CRYPTO_BLKCIPHER2
select CRYPTO_RNG2
config CRYPTO_HASH
- tristate
+ tristate "HASH"
select CRYPTO_HASH2
select CRYPTO_ALGAPI
@@ -72,7 +72,7 @@ config CRYPTO_HASH2
select CRYPTO_ALGAPI2
config CRYPTO_RNG
- tristate
+ tristate "RNG"
select CRYPTO_RNG2
select CRYPTO_ALGAPI
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -16,6 +16,7 @@ if BCMA
# Support for Block-I/O. SELECT this from the driver that needs it.
config BCMA_BLOCKIO
bool
+ default y
config BCMA_HOST_PCI_POSSIBLE
bool
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -29,6 +29,7 @@ config SSB_SPROM
config SSB_BLOCKIO
bool
depends on SSB
+ default y
config SSB_PCIHOST_POSSIBLE
bool
@@ -49,7 +50,7 @@ config SSB_PCIHOST
config SSB_B43_PCI_BRIDGE
bool
depends on SSB_PCIHOST
- default n
+ default y
config SSB_PCMCIAHOST_POSSIBLE
bool
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -402,16 +402,16 @@ config BCH_CONST_T
# Textsearch support is select'ed if needed
#
config TEXTSEARCH
- bool
+ bool "Textsearch support"
config TEXTSEARCH_KMP
- tristate
+ tristate "Textsearch KMP"
config TEXTSEARCH_BM
- tristate
+ tristate "Textsearch BM"
config TEXTSEARCH_FSM
- tristate
+ tristate "Textsearch FSM"
config BTREE
bool
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -11,7 +11,7 @@ config NETFILTER_INGRESS
infrastructure.
config NETFILTER_NETLINK
- tristate
+ tristate "Netfilter NFNETLINK interface"
config NETFILTER_FAMILY_BRIDGE
bool
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
config WIRELESS_EXT
- bool
+ bool "Wireless extensions"
config WEXT_CORE
def_bool y
@@ -12,10 +12,10 @@ config WEXT_PROC
depends on WEXT_CORE
config WEXT_SPY
- bool
+ bool "WEXT_SPY"
config WEXT_PRIV
- bool
+ bool "WEXT_PRIV"
config CFG80211
tristate "cfg80211 - wireless configuration API"
@@ -203,7 +203,7 @@ config CFG80211_WEXT_EXPORT
endif # CFG80211
config LIB80211
- tristate
+ tristate "LIB80211"
default n
help
This options enables a library of common routines used
@@ -212,16 +212,16 @@ config LIB80211
Drivers should select this themselves if needed.
config LIB80211_CRYPT_WEP
- tristate
+ tristate "LIB80211_CRYPT_WEP"
select CRYPTO_LIB_ARC4
config LIB80211_CRYPT_CCMP
- tristate
+ tristate "LIB80211_CRYPT_CCMP"
select CRYPTO_AES
select CRYPTO_CCM
config LIB80211_CRYPT_TKIP
- tristate
+ tristate "LIB80211_CRYPT_TKIP"
select CRYPTO_LIB_ARC4
config LIB80211_DEBUG
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -17,7 +17,7 @@ config SND_DMAENGINE_PCM
tristate
config SND_HWDEP
- tristate
+ tristate "Sound hardware support"
config SND_SEQ_DEVICE
tristate
@@ -27,7 +27,7 @@ config SND_RAWMIDI
select SND_SEQ_DEVICE if SND_SEQUENCER != n
config SND_COMPRESS_OFFLOAD
- tristate
+ tristate "Compression offloading support"
config SND_JACK
bool

125
target/linux/generic/hack-5.4/259-regmap_dynamic.patch Normal file
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@ -0,0 +1,125 @@
From 811d9e2268a62b830cfe93cd8bc929afcb8b198b Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 15 Jul 2017 21:12:38 +0200
Subject: kernel: move regmap bloat out of the kernel image if it is only being used in modules
lede-commit: 96f39119815028073583e4fca3a9c5fe9141e998
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/base/regmap/Kconfig | 15 ++++++++++-----
drivers/base/regmap/Makefile | 12 ++++++++----
drivers/base/regmap/regmap.c | 3 +++
include/linux/regmap.h | 2 +-
4 files changed, 22 insertions(+), 10 deletions(-)
--- a/drivers/base/regmap/Kconfig
+++ b/drivers/base/regmap/Kconfig
@@ -4,9 +4,8 @@
# subsystems should select the appropriate symbols.
config REGMAP
- default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ || REGMAP_SCCB || REGMAP_I3C)
select IRQ_DOMAIN if REGMAP_IRQ
- bool
+ tristate
config REGCACHE_COMPRESSED
select LZO_COMPRESS
@@ -18,38 +17,49 @@ config REGMAP_AC97
config REGMAP_I2C
tristate
+ select REGMAP
depends on I2C
config REGMAP_SLIMBUS
tristate
+ select REGMAP
depends on SLIMBUS
config REGMAP_SPI
tristate
+ select REGMAP
+ depends on SPI_MASTER
depends on SPI
config REGMAP_SPMI
tristate
+ select REGMAP
depends on SPMI
config REGMAP_W1
tristate
+ select REGMAP
depends on W1
config REGMAP_MMIO
tristate
+ select REGMAP
config REGMAP_IRQ
bool
+ select REGMAP
config REGMAP_SOUNDWIRE
tristate
+ select REGMAP
depends on SOUNDWIRE
config REGMAP_SCCB
tristate
+ select REGMAP
depends on I2C
config REGMAP_I3C
tristate
+ select REGMAP
depends on I3C
--- a/drivers/base/regmap/Makefile
+++ b/drivers/base/regmap/Makefile
@@ -2,10 +2,14 @@
# For include/trace/define_trace.h to include trace.h
CFLAGS_regmap.o := -I$(src)
-obj-$(CONFIG_REGMAP) += regmap.o regcache.o
-obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
-obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
-obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
+regmap-core-objs = regmap.o regcache.o regcache-rbtree.o regcache-flat.o
+ifdef CONFIG_DEBUG_FS
+regmap-core-objs += regmap-debugfs.o
+endif
+ifdef CONFIG_REGCACHE_COMPRESSED
+regmap-core-objs += regcache-lzo.o
+endif
+obj-$(CONFIG_REGMAP) += regmap-core.o
obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o
obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
obj-$(CONFIG_REGMAP_SLIMBUS) += regmap-slimbus.o
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -9,6 +9,7 @@
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/export.h>
+#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/err.h>
#include <linux/of.h>
@@ -3124,3 +3125,5 @@ static int __init regmap_initcall(void)
return 0;
}
postcore_initcall(regmap_initcall);
+
+MODULE_LICENSE("GPL");
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -185,7 +185,7 @@ struct reg_sequence {
pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
})
-#ifdef CONFIG_REGMAP
+#if IS_REACHABLE(CONFIG_REGMAP)
enum regmap_endian {
/* Unspecified -> 0 -> Backwards compatible default */

70
target/linux/generic/hack-5.4/260-crypto_test_dependencies.patch Normal file
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@ -0,0 +1,70 @@
From fd1799b0bf5efa46dd3e6dfbbf3955564807e508 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:12:51 +0200
Subject: kernel: prevent cryptomgr from pulling in useless extra dependencies for tests that are not run
Reduces kernel size after LZMA by about 5k on MIPS
lede-commit: 044c316167e076479a344c59905e5b435b84a77f
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
crypto/Kconfig | 13 ++++++-------
crypto/algboss.c | 4 ++++
2 files changed, 10 insertions(+), 7 deletions(-)
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -120,13 +120,13 @@ config CRYPTO_MANAGER
cbc(aes).
config CRYPTO_MANAGER2
- def_tristate CRYPTO_MANAGER || (CRYPTO_MANAGER!=n && CRYPTO_ALGAPI=y)
- select CRYPTO_AEAD2
- select CRYPTO_HASH2
- select CRYPTO_BLKCIPHER2
- select CRYPTO_AKCIPHER2
- select CRYPTO_KPP2
- select CRYPTO_ACOMP2
+ def_tristate CRYPTO_MANAGER || (CRYPTO_MANAGER!=n && CRYPTO_ALGAPI=y && !CRYPTO_MANAGER_DISABLE_TESTS)
+ select CRYPTO_AEAD2 if !CRYPTO_MANAGER_DISABLE_TESTS
+ select CRYPTO_HASH2 if !CRYPTO_MANAGER_DISABLE_TESTS
+ select CRYPTO_BLKCIPHER2 if !CRYPTO_MANAGER_DISABLE_TESTS
+ select CRYPTO_AKCIPHER2 if !CRYPTO_MANAGER_DISABLE_TESTS
+ select CRYPTO_KPP2 if !CRYPTO_MANAGER_DISABLE_TESTS
+ select CRYPTO_ACOMP2 if !CRYPTO_MANAGER_DISABLE_TESTS
config CRYPTO_USER
tristate "Userspace cryptographic algorithm configuration"
@@ -136,8 +136,6 @@ config CRYPTO_USER
Userspace configuration for cryptographic instantiations such as
cbc(aes).
-if CRYPTO_MANAGER2
-
config CRYPTO_MANAGER_DISABLE_TESTS
bool "Disable run-time self tests"
default y
@@ -145,6 +143,8 @@ config CRYPTO_MANAGER_DISABLE_TESTS
Disable run-time self tests that normally take place at
algorithm registration.
+if CRYPTO_MANAGER2
+
config CRYPTO_MANAGER_EXTRA_TESTS
bool "Enable extra run-time crypto self tests"
depends on DEBUG_KERNEL && !CRYPTO_MANAGER_DISABLE_TESTS
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -242,8 +242,12 @@ static int cryptomgr_schedule_test(struc
type = alg->cra_flags;
/* Do not test internal algorithms. */
+#ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
+ type |= CRYPTO_ALG_TESTED;
+#else
if (type & CRYPTO_ALG_INTERNAL)
type |= CRYPTO_ALG_TESTED;
+#endif
param->type = type;

15
target/linux/generic/hack-5.4/260-lib-arc4-unhide.patch Normal file
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@ -0,0 +1,15 @@
This makes it possible to select CONFIG_CRYPTO_LIB_ARC4 directly. We
need this to be able to compile this into the kernel and make use of it
from backports.
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1151,7 +1151,7 @@ config CRYPTO_ANUBIS
<http://www.larc.usp.br/~pbarreto/AnubisPage.html>
config CRYPTO_LIB_ARC4
- tristate
+ tristate "ARC4 cipher library"
config CRYPTO_ARC4
tristate "ARC4 cipher algorithm"

84
target/linux/generic/hack-5.4/280-rfkill-stubs.patch Normal file
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@ -0,0 +1,84 @@
From 236c1acdfef5958010ac9814a9872e0a46fd78ee Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Fri, 7 Jul 2017 17:13:44 +0200
Subject: rfkill: add fake rfkill support
allow building of modules depending on RFKILL even if RFKILL is not enabled.
Signed-off-by: John Crispin <john@phrozen.org>
---
include/linux/rfkill.h | 2 +-
net/Makefile | 2 +-
net/rfkill/Kconfig | 14 +++++++++-----
net/rfkill/Makefile | 2 +-
4 files changed, 12 insertions(+), 8 deletions(-)
--- a/include/linux/rfkill.h
+++ b/include/linux/rfkill.h
@@ -64,7 +64,7 @@ struct rfkill_ops {
int (*set_block)(void *data, bool blocked);
};
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
+#if defined(CONFIG_RFKILL_FULL) || defined(CONFIG_RFKILL_FULL_MODULE)
/**
* rfkill_alloc - Allocate rfkill structure
* @name: name of the struct -- the string is not copied internally
--- a/net/Makefile
+++ b/net/Makefile
@@ -53,7 +53,7 @@ obj-$(CONFIG_TIPC) += tipc/
obj-$(CONFIG_NETLABEL) += netlabel/
obj-$(CONFIG_IUCV) += iucv/
obj-$(CONFIG_SMC) += smc/
-obj-$(CONFIG_RFKILL) += rfkill/
+obj-$(CONFIG_RFKILL_FULL) += rfkill/
obj-$(CONFIG_NET_9P) += 9p/
obj-$(CONFIG_CAIF) += caif/
ifneq ($(CONFIG_DCB),)
--- a/net/rfkill/Kconfig
+++ b/net/rfkill/Kconfig
@@ -2,7 +2,11 @@
#
# RF switch subsystem configuration
#
-menuconfig RFKILL
+config RFKILL
+ bool
+ default y
+
+menuconfig RFKILL_FULL
tristate "RF switch subsystem support"
help
Say Y here if you want to have control over RF switches
@@ -14,19 +18,19 @@ menuconfig RFKILL
# LED trigger support
config RFKILL_LEDS
bool
- depends on RFKILL
+ depends on RFKILL_FULL
depends on LEDS_TRIGGERS = y || RFKILL = LEDS_TRIGGERS
default y
config RFKILL_INPUT
bool "RF switch input support" if EXPERT
- depends on RFKILL
+ depends on RFKILL_FULL
depends on INPUT = y || RFKILL = INPUT
default y if !EXPERT
config RFKILL_GPIO
tristate "GPIO RFKILL driver"
- depends on RFKILL
+ depends on RFKILL_FULL
depends on GPIOLIB || COMPILE_TEST
default n
help
--- a/net/rfkill/Makefile
+++ b/net/rfkill/Makefile
@@ -5,5 +5,5 @@
rfkill-y += core.o
rfkill-$(CONFIG_RFKILL_INPUT) += input.o
-obj-$(CONFIG_RFKILL) += rfkill.o
+obj-$(CONFIG_RFKILL_FULL) += rfkill.o
obj-$(CONFIG_RFKILL_GPIO) += rfkill-gpio.o

64
target/linux/generic/hack-5.4/300-MIPS-r4k_cache-use-more-efficient-cache-blast.patch Normal file
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@ -0,0 +1,64 @@
From: Ben Menchaca <ben.menchaca@qca.qualcomm.com>
Date: Fri, 7 Jun 2013 18:35:22 -0500
Subject: MIPS: r4k_cache: use more efficient cache blast
Optimize the compiler output for larger cache blast cases that are
common for DMA-based networking.
Signed-off-by: Ben Menchaca <ben.menchaca@qca.qualcomm.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/arch/mips/include/asm/r4kcache.h
+++ b/arch/mips/include/asm/r4kcache.h
@@ -617,14 +617,46 @@ static inline void prot##extra##blast_##
unsigned long end) \
{ \
unsigned long lsize = cpu_##desc##_line_size(); \
+ unsigned long lsize_2 = lsize * 2; \
+ unsigned long lsize_3 = lsize * 3; \
+ unsigned long lsize_4 = lsize * 4; \
+ unsigned long lsize_5 = lsize * 5; \
+ unsigned long lsize_6 = lsize * 6; \
+ unsigned long lsize_7 = lsize * 7; \
+ unsigned long lsize_8 = lsize * 8; \
unsigned long addr = start & ~(lsize - 1); \
- unsigned long aend = (end - 1) & ~(lsize - 1); \
+ unsigned long aend = (end + lsize - 1) & ~(lsize - 1); \
+ int lines = (aend - addr) / lsize; \
\
- while (1) { \
+ while (lines >= 8) { \
+ prot##cache_op(hitop, addr); \
+ prot##cache_op(hitop, addr + lsize); \
+ prot##cache_op(hitop, addr + lsize_2); \
+ prot##cache_op(hitop, addr + lsize_3); \
+ prot##cache_op(hitop, addr + lsize_4); \
+ prot##cache_op(hitop, addr + lsize_5); \
+ prot##cache_op(hitop, addr + lsize_6); \
+ prot##cache_op(hitop, addr + lsize_7); \
+ addr += lsize_8; \
+ lines -= 8; \
+ } \
+ \
+ if (lines & 0x4) { \
+ prot##cache_op(hitop, addr); \
+ prot##cache_op(hitop, addr + lsize); \
+ prot##cache_op(hitop, addr + lsize_2); \
+ prot##cache_op(hitop, addr + lsize_3); \
+ addr += lsize_4; \
+ } \
+ \
+ if (lines & 0x2) { \
+ prot##cache_op(hitop, addr); \
+ prot##cache_op(hitop, addr + lsize); \
+ addr += lsize_2; \
+ } \
+ \
+ if (lines & 0x1) { \
prot##cache_op(hitop, addr); \
- if (addr == aend) \
- break; \
- addr += lsize; \
} \
}

38
target/linux/generic/hack-5.4/301-mips_image_cmdline_hack.patch Normal file
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@ -0,0 +1,38 @@
From: John Crispin <john@phrozen.org>
Subject: hack: kernel: add generic image_cmdline hack to MIPS targets
lede-commit: d59f5b3a987a48508257a0ddbaeadc7909f9f976
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
arch/mips/Kconfig | 4 ++++
arch/mips/kernel/head.S | 6 ++++++
2 files changed, 10 insertions(+)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1156,6 +1156,10 @@ config SYNC_R4K
config MIPS_MACHINE
def_bool n
+config IMAGE_CMDLINE_HACK
+ bool "OpenWrt specific image command line hack"
+ default n
+
config NO_IOPORT_MAP
def_bool n
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -79,6 +79,12 @@ FEXPORT(__kernel_entry)
j kernel_entry
#endif /* CONFIG_BOOT_RAW */
+#ifdef CONFIG_IMAGE_CMDLINE_HACK
+ .ascii "CMDLINE:"
+EXPORT(__image_cmdline)
+ .fill 0x400
+#endif /* CONFIG_IMAGE_CMDLINE_HACK */
+
__REF
NESTED(kernel_entry, 16, sp) # kernel entry point

39
target/linux/generic/hack-5.4/321-powerpc_crtsavres_prereq.patch Normal file
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@ -0,0 +1,39 @@
From 107c0964cb8db7ca28ac5199426414fdab3c274d Mon Sep 17 00:00:00 2001
From: "Alexandros C. Couloumbis" <alex@ozo.com>
Date: Fri, 7 Jul 2017 17:14:51 +0200
Subject: hack: arch: powerpc: drop register save/restore library from modules
Upstream GCC uses a libgcc function for saving/restoring registers. This
makes the code bigger, and upstream kernels need to carry that function
for every single kernel module. Our GCC is patched to avoid those
references, so we can drop the extra bloat for modules.
lede-commit: e8e1084654f50904e6bf77b70b2de3f137d7b3ec
Signed-off-by: Alexandros C. Couloumbis <alex@ozo.com>
---
arch/powerpc/Makefile | 1 -
1 file changed, 1 deletion(-)
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -61,20 +61,6 @@ machine-$(CONFIG_PPC64) += 64
machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
UTS_MACHINE := $(subst $(space),,$(machine-y))
-# XXX This needs to be before we override LD below
-ifdef CONFIG_PPC32
-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
-else
-KBUILD_LDS_MODULE += $(srctree)/arch/powerpc/kernel/module.lds
-ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
-# Have the linker provide sfpr if possible.
-# There is a corresponding test in arch/powerpc/lib/Makefile
-KBUILD_LDFLAGS_MODULE += --save-restore-funcs
-else
-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
-endif
-endif
-
ifdef CONFIG_CPU_LITTLE_ENDIAN
KBUILD_CFLAGS += -mlittle-endian
KBUILD_LDFLAGS += -EL

1040
target/linux/generic/hack-5.4/531-debloat_lzma.patch Normal file
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File diff suppressed because it is too large Load Diff

41
target/linux/generic/hack-5.4/550-loop-Report-EOPNOTSUPP-properly.patch Normal file
View File

@ -0,0 +1,41 @@
From 2e864386e62e702a343be2507062ee08d5dfc810 Mon Sep 17 00:00:00 2001
From: Evan Green <evgreen@chromium.org>
Date: Thu, 14 Nov 2019 15:50:07 -0800
Subject: loop: Report EOPNOTSUPP properly
Properly plumb out EOPNOTSUPP from loop driver operations, which may
get returned when for instance a discard operation is attempted but not
supported by the underlying block device. Before this change, everything
was reported in the log as an I/O error, which is scary and not
helpful in debugging.
Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
---
drivers/block/loop.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -461,7 +461,7 @@ static void lo_complete_rq(struct reques
if (!cmd->use_aio || cmd->ret < 0 || cmd->ret == blk_rq_bytes(rq) ||
req_op(rq) != REQ_OP_READ) {
if (cmd->ret < 0)
- ret = BLK_STS_IOERR;
+ ret = errno_to_blk_status(cmd->ret);
goto end_io;
}
@@ -1950,7 +1950,10 @@ static void loop_handle_cmd(struct loop_
failed:
/* complete non-aio request */
if (!cmd->use_aio || ret) {
- cmd->ret = ret ? -EIO : 0;
+ if (ret == -EOPNOTSUPP)
+ cmd->ret = ret;
+ else
+ cmd->ret = ret ? -EIO : 0;
blk_mq_complete_request(rq);
}
}

101
target/linux/generic/hack-5.4/551-loop-Better-discard-support-for-block-devices.patch Normal file
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@ -0,0 +1,101 @@
From 3117c3f45edbcc269baaebd3d13f39b7bf884aa6 Mon Sep 17 00:00:00 2001
From: Evan Green <evgreen@chromium.org>
Date: Thu, 14 Nov 2019 15:50:08 -0800
Subject: loop: Better discard support for block devices
If the backing device for a loop device is itself a block device,
then mirror the "write zeroes" capabilities of the underlying
block device into the loop device. Copy this capability into both
max_write_zeroes_sectors and max_discard_sectors of the loop device.
The reason for this is that REQ_OP_DISCARD on a loop device translates
into blkdev_issue_zeroout(), rather than blkdev_issue_discard(). This
presents a consistent interface for loop devices (that discarded data
is zeroed), regardless of the backing device type of the loop device.
There should be no behavior change for loop devices backed by regular
files.
This change fixes blktest block/003, and removes an extraneous
error print in block/013 when testing on a loop device backed
by a block device that does not support discard.
Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
drivers/block/loop.c | 40 +++++++++++++++++++++++++++++-----------
1 file changed, 29 insertions(+), 11 deletions(-)
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -427,11 +427,12 @@ static int lo_fallocate(struct loop_devi
* information.
*/
struct file *file = lo->lo_backing_file;
+ struct request_queue *q = lo->lo_queue;
int ret;
mode |= FALLOC_FL_KEEP_SIZE;
- if ((!file->f_op->fallocate) || lo->lo_encrypt_key_size) {
+ if (!blk_queue_discard(q)) {
ret = -EOPNOTSUPP;
goto out;
}
@@ -862,6 +863,21 @@ static void loop_config_discard(struct l
struct file *file = lo->lo_backing_file;
struct inode *inode = file->f_mapping->host;
struct request_queue *q = lo->lo_queue;
+ struct request_queue *backingq;
+
+ /*
+ * If the backing device is a block device, mirror its zeroing
+ * capability. REQ_OP_DISCARD translates to a zero-out even when backed
+ * by block devices to keep consistent behavior with file-backed loop
+ * devices.
+ */
+ if (S_ISBLK(inode->i_mode) && !lo->lo_encrypt_key_size) {
+ backingq = bdev_get_queue(inode->i_bdev);
+ blk_queue_max_discard_sectors(q,
+ backingq->limits.max_write_zeroes_sectors);
+
+ blk_queue_max_write_zeroes_sectors(q,
+ backingq->limits.max_write_zeroes_sectors);
/*
* We use punch hole to reclaim the free space used by the
@@ -869,22 +885,24 @@ static void loop_config_discard(struct l
* encryption is enabled, because it may give an attacker
* useful information.
*/
- if ((!file->f_op->fallocate) ||
- lo->lo_encrypt_key_size) {
+ } else if ((!file->f_op->fallocate) || lo->lo_encrypt_key_size) {
q->limits.discard_granularity = 0;
q->limits.discard_alignment = 0;
blk_queue_max_discard_sectors(q, 0);
blk_queue_max_write_zeroes_sectors(q, 0);
- blk_queue_flag_clear(QUEUE_FLAG_DISCARD, q);
- return;
- }
- q->limits.discard_granularity = inode->i_sb->s_blocksize;
- q->limits.discard_alignment = 0;
+ } else {
+ q->limits.discard_granularity = inode->i_sb->s_blocksize;
+ q->limits.discard_alignment = 0;
- blk_queue_max_discard_sectors(q, UINT_MAX >> 9);
- blk_queue_max_write_zeroes_sectors(q, UINT_MAX >> 9);
- blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
+ blk_queue_max_discard_sectors(q, UINT_MAX >> 9);
+ blk_queue_max_write_zeroes_sectors(q, UINT_MAX >> 9);
+ }
+
+ if (q->limits.max_write_zeroes_sectors)
+ blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
+ else
+ blk_queue_flag_clear(QUEUE_FLAG_DISCARD, q);
}
static void loop_unprepare_queue(struct loop_device *lo)

82
target/linux/generic/hack-5.4/640-bridge-only-accept-EAP-locally.patch Normal file
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@ -0,0 +1,82 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:18:54 +0200
Subject: bridge: only accept EAP locally
When bridging, do not forward EAP frames to other ports, only deliver
them locally, regardless of the state.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
[add disable_eap_hack sysfs attribute]
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
---
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -103,10 +103,14 @@ int br_handle_frame_finish(struct net *n
}
}
+ BR_INPUT_SKB_CB(skb)->brdev = br->dev;
+
+ if (skb->protocol == htons(ETH_P_PAE) && !br->disable_eap_hack)
+ return br_pass_frame_up(skb);
+
if (p->state == BR_STATE_LEARNING)
goto drop;
- BR_INPUT_SKB_CB(skb)->brdev = br->dev;
BR_INPUT_SKB_CB(skb)->src_port_isolated = !!(p->flags & BR_ISOLATED);
if (IS_ENABLED(CONFIG_INET) &&
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -345,6 +345,8 @@ struct net_bridge {
u16 group_fwd_mask;
u16 group_fwd_mask_required;
+ bool disable_eap_hack;
+
/* STP */
bridge_id designated_root;
bridge_id bridge_id;
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -166,6 +166,30 @@ static ssize_t group_fwd_mask_store(stru
}
static DEVICE_ATTR_RW(group_fwd_mask);
+static ssize_t disable_eap_hack_show(struct device *d,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct net_bridge *br = to_bridge(d);
+ return sprintf(buf, "%u\n", br->disable_eap_hack);
+}
+
+static int set_disable_eap_hack(struct net_bridge *br, unsigned long val)
+{
+ br->disable_eap_hack = !!val;
+
+ return 0;
+}
+
+static ssize_t disable_eap_hack_store(struct device *d,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t len)
+{
+ return store_bridge_parm(d, buf, len, set_disable_eap_hack);
+}
+static DEVICE_ATTR_RW(disable_eap_hack);
+
static ssize_t priority_show(struct device *d, struct device_attribute *attr,
char *buf)
{
@@ -851,6 +875,7 @@ static struct attribute *bridge_attrs[]
&dev_attr_ageing_time.attr,
&dev_attr_stp_state.attr,
&dev_attr_group_fwd_mask.attr,
+ &dev_attr_disable_eap_hack.attr,
&dev_attr_priority.attr,
&dev_attr_bridge_id.attr,
&dev_attr_root_id.attr,

212
target/linux/generic/hack-5.4/645-netfilter-connmark-introduce-set-dscpmark.patch Normal file
View File

@ -0,0 +1,212 @@
From eda40b8c8c82e0f2789d6bc8bf63846dce2e8f32 Mon Sep 17 00:00:00 2001
From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Date: Sat, 23 Mar 2019 09:29:49 +0000
Subject: [PATCH] netfilter: connmark: introduce set-dscpmark
set-dscpmark is a method of storing the DSCP of an ip packet into
conntrack mark. In combination with a suitable tc filter action
(act_ctinfo) DSCP values are able to be stored in the mark on egress and
restored on ingress across links that otherwise alter or bleach DSCP.
This is useful for qdiscs such as CAKE which are able to shape according
to policies based on DSCP.
Ingress classification is traditionally a challenging task since
iptables rules haven't yet run and tc filter/eBPF programs are pre-NAT
lookups, hence are unable to see internal IPv4 addresses as used on the
typical home masquerading gateway.
x_tables CONNMARK set-dscpmark target solves the problem of storing the
DSCP to the conntrack mark in a way suitable for the new act_ctinfo tc
action to restore.
The set-dscpmark option accepts 2 parameters, a 32bit 'dscpmask' and a
32bit 'statemask'. The dscp mask must be 6 contiguous bits and
represents the area where the DSCP will be stored in the connmark. The
state mask is a minimum 1 bit length mask that must not overlap with the
dscpmask. It represents a flag which is set when the DSCP has been
stored in the conntrack mark. This is useful to implement a 'one shot'
iptables based classification where the 'complicated' iptables rules are
only run once to classify the connection on initial (egress) packet and
subsequent packets are all marked/restored with the same DSCP. A state
mask of zero disables the setting of a status bit/s.
example syntax with a suitably modified iptables user space application:
iptables -A QOS_MARK_eth0 -t mangle -j CONNMARK --set-dscpmark 0xfc000000/0x01000000
Would store the DSCP in the top 6 bits of the 32bit mark field, and use
the LSB of the top byte as the 'DSCP has been stored' marker.
|----0xFC----conntrack mark----000000---|
| Bits 31-26 | bit 25 | bit24 |~~~ Bit 0|
| DSCP | unused | flag |unused |
|-----------------------0x01---000000---|
^ ^
| |
---| Conditional flag
| set this when dscp
|-ip diffserv-| stored in mark
| 6 bits |
|-------------|
an identically configured tc action to restore looks like:
tc filter show dev eth0 ingress
filter parent ffff: protocol all pref 10 u32 chain 0
filter parent ffff: protocol all pref 10 u32 chain 0 fh 800: ht divisor 1
filter parent ffff: protocol all pref 10 u32 chain 0 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1: not_in_hw
match 00000000/00000000 at 0
action order 1: ctinfo zone 0 pipe
index 2 ref 1 bind 1 dscp 0xfc000000/0x1000000
action order 2: mirred (Egress Redirect to device ifb4eth0) stolen
index 1 ref 1 bind 1
|----0xFC----conntrack mark----000000---|
| Bits 31-26 | bit 25 | bit24 |~~~ Bit 0|
| DSCP | unused | flag |unused |
|-----------------------0x01---000000---|
| |
| |
---| Conditional flag
v only restore if set
|-ip diffserv-|
| 6 bits |
|-------------|
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
---
include/uapi/linux/netfilter/xt_connmark.h | 10 ++++
net/netfilter/xt_connmark.c | 55 ++++++++++++++++++----
2 files changed, 57 insertions(+), 8 deletions(-)
--- a/include/uapi/linux/netfilter/xt_connmark.h
+++ b/include/uapi/linux/netfilter/xt_connmark.h
@@ -20,6 +20,11 @@ enum {
};
enum {
+ XT_CONNMARK_VALUE = (1 << 0),
+ XT_CONNMARK_DSCP = (1 << 1)
+};
+
+enum {
D_SHIFT_LEFT = 0,
D_SHIFT_RIGHT,
};
@@ -34,6 +39,11 @@ struct xt_connmark_tginfo2 {
__u8 shift_dir, shift_bits, mode;
};
+struct xt_connmark_tginfo3 {
+ __u32 ctmark, ctmask, nfmask;
+ __u8 shift_dir, shift_bits, mode, func;
+};
+
struct xt_connmark_mtinfo1 {
__u32 mark, mask;
__u8 invert;
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -24,12 +24,13 @@ MODULE_ALIAS("ipt_connmark");
MODULE_ALIAS("ip6t_connmark");
static unsigned int
-connmark_tg_shift(struct sk_buff *skb, const struct xt_connmark_tginfo2 *info)
+connmark_tg_shift(struct sk_buff *skb, const struct xt_connmark_tginfo3 *info)
{
enum ip_conntrack_info ctinfo;
u_int32_t new_targetmark;
struct nf_conn *ct;
u_int32_t newmark;
+ u_int8_t dscp;
ct = nf_ct_get(skb, &ctinfo);
if (ct == NULL)
@@ -37,12 +38,24 @@ connmark_tg_shift(struct sk_buff *skb, c
switch (info->mode) {
case XT_CONNMARK_SET:
- newmark = (ct->mark & ~info->ctmask) ^ info->ctmark;
- if (info->shift_dir == D_SHIFT_RIGHT)
- newmark >>= info->shift_bits;
- else
- newmark <<= info->shift_bits;
+ newmark = ct->mark;
+ if (info->func & XT_CONNMARK_VALUE) {
+ newmark = (newmark & ~info->ctmask) ^ info->ctmark;
+ if (info->shift_dir == D_SHIFT_RIGHT)
+ newmark >>= info->shift_bits;
+ else
+ newmark <<= info->shift_bits;
+ } else if (info->func & XT_CONNMARK_DSCP) {
+ if (skb->protocol == htons(ETH_P_IP))
+ dscp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2;
+ else /* protocol doesn't have diffserv */
+ break;
+ newmark = (newmark & ~info->ctmark) |
+ (info->ctmask | (dscp << info->shift_bits));
+ }
if (ct->mark != newmark) {
ct->mark = newmark;
nf_conntrack_event_cache(IPCT_MARK, ct);
@@ -81,20 +94,36 @@ static unsigned int
connmark_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_connmark_tginfo1 *info = par->targinfo;
- const struct xt_connmark_tginfo2 info2 = {
+ const struct xt_connmark_tginfo3 info3 = {
.ctmark = info->ctmark,
.ctmask = info->ctmask,
.nfmask = info->nfmask,
.mode = info->mode,
+ .func = XT_CONNMARK_VALUE
};
- return connmark_tg_shift(skb, &info2);
+ return connmark_tg_shift(skb, &info3);
}
static unsigned int
connmark_tg_v2(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct xt_connmark_tginfo2 *info = par->targinfo;
+ const struct xt_connmark_tginfo3 info3 = {
+ .ctmark = info->ctmark,
+ .ctmask = info->ctmask,
+ .nfmask = info->nfmask,
+ .mode = info->mode,
+ .func = XT_CONNMARK_VALUE
+ };
+
+ return connmark_tg_shift(skb, &info3);
+}
+
+static unsigned int
+connmark_tg_v3(struct sk_buff *skb, const struct xt_action_param *par)
+{
+ const struct xt_connmark_tginfo3 *info = par->targinfo;
return connmark_tg_shift(skb, info);
}
@@ -165,6 +194,16 @@ static struct xt_target connmark_tg_reg[
.targetsize = sizeof(struct xt_connmark_tginfo2),
.destroy = connmark_tg_destroy,
.me = THIS_MODULE,
+ },
+ {
+ .name = "CONNMARK",
+ .revision = 3,
+ .family = NFPROTO_UNSPEC,
+ .checkentry = connmark_tg_check,
+ .target = connmark_tg_v3,
+ .targetsize = sizeof(struct xt_connmark_tginfo3),
+ .destroy = connmark_tg_destroy,
+ .me = THIS_MODULE,
}
};

70
target/linux/generic/hack-5.4/647-netfilter-flow-acct.patch Normal file
View File

@ -0,0 +1,70 @@
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -158,6 +158,8 @@ struct nf_flow_table_hw {
int nf_flow_table_hw_register(const struct nf_flow_table_hw *offload);
void nf_flow_table_hw_unregister(const struct nf_flow_table_hw *offload);
+void nf_flow_table_acct(struct flow_offload *flow, struct sk_buff *skb, int dir);
+
extern struct work_struct nf_flow_offload_hw_work;
#define MODULE_ALIAS_NF_FLOWTABLE(family) \
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -13,6 +13,7 @@
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_tuple.h>
+#include <net/netfilter/nf_conntrack_acct.h>
struct flow_offload_entry {
struct flow_offload flow;
@@ -164,6 +165,22 @@ void flow_offload_free(struct flow_offlo
}
EXPORT_SYMBOL_GPL(flow_offload_free);
+void nf_flow_table_acct(struct flow_offload *flow, struct sk_buff *skb, int dir)
+{
+ struct flow_offload_entry *entry;
+ struct nf_conn_acct *acct;
+
+ entry = container_of(flow, struct flow_offload_entry, flow);
+ acct = nf_conn_acct_find(entry->ct);
+ if (acct) {
+ struct nf_conn_counter *counter = acct->counter;
+
+ atomic64_inc(&counter[dir].packets);
+ atomic64_add(skb->len, &counter[dir].bytes);
+ }
+}
+EXPORT_SYMBOL_GPL(nf_flow_table_acct);
+
static u32 flow_offload_hash(const void *data, u32 len, u32 seed)
{
const struct flow_offload_tuple *tuple = data;
--- a/net/netfilter/nf_flow_table_ip.c
+++ b/net/netfilter/nf_flow_table_ip.c
@@ -12,6 +12,7 @@
#include <net/ip6_route.h>
#include <net/neighbour.h>
#include <net/netfilter/nf_flow_table.h>
+
/* For layer 4 checksum field offset. */
#include <linux/tcp.h>
#include <linux/udp.h>
@@ -296,6 +297,7 @@ nf_flow_offload_ip_hook(void *priv, stru
skb->dev = outdev;
nexthop = rt_nexthop(rt, flow->tuplehash[!dir].tuple.src_v4.s_addr);
skb_dst_set_noref(skb, &rt->dst);
+ nf_flow_table_acct(flow, skb, dir);
neigh_xmit(NEIGH_ARP_TABLE, outdev, &nexthop, skb);
return NF_STOLEN;
@@ -526,6 +528,7 @@ nf_flow_offload_ipv6_hook(void *priv, st
skb->dev = outdev;
nexthop = rt6_nexthop(rt, &flow->tuplehash[!dir].tuple.src_v6);
skb_dst_set_noref(skb, &rt->dst);
+ nf_flow_table_acct(flow, skb, dir);
neigh_xmit(NEIGH_ND_TABLE, outdev, nexthop, skb);
return NF_STOLEN;

589
target/linux/generic/hack-5.4/650-netfilter-add-xt_OFFLOAD-target.patch Normal file
View File

@ -0,0 +1,589 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Tue, 20 Feb 2018 15:56:02 +0100
Subject: [PATCH] netfilter: add xt_OFFLOAD target
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
create mode 100644 net/netfilter/xt_OFFLOAD.c
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -56,8 +56,6 @@ config NF_TABLES_ARP
help
This option enables the ARP support for nf_tables.
-endif # NF_TABLES
-
config NF_FLOW_TABLE_IPV4
tristate "Netfilter flow table IPv4 module"
depends on NF_FLOW_TABLE
@@ -66,6 +64,8 @@ config NF_FLOW_TABLE_IPV4
To compile it as a module, choose M here.
+endif # NF_TABLES
+
config NF_DUP_IPV4
tristate "Netfilter IPv4 packet duplication to alternate destination"
depends on !NF_CONNTRACK || NF_CONNTRACK
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -45,7 +45,6 @@ config NFT_FIB_IPV6
multicast or blackhole.
endif # NF_TABLES_IPV6
-endif # NF_TABLES
config NF_FLOW_TABLE_IPV6
tristate "Netfilter flow table IPv6 module"
@@ -55,6 +54,8 @@ config NF_FLOW_TABLE_IPV6
To compile it as a module, choose M here.
+endif # NF_TABLES
+
config NF_DUP_IPV6
tristate "Netfilter IPv6 packet duplication to alternate destination"
depends on !NF_CONNTRACK || NF_CONNTRACK
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -702,8 +702,6 @@ config NFT_FIB_NETDEV
endif # NF_TABLES_NETDEV
-endif # NF_TABLES
-
config NF_FLOW_TABLE_INET
tristate "Netfilter flow table mixed IPv4/IPv6 module"
depends on NF_FLOW_TABLE
@@ -712,11 +710,12 @@ config NF_FLOW_TABLE_INET
To compile it as a module, choose M here.
+endif # NF_TABLES
+
config NF_FLOW_TABLE
tristate "Netfilter flow table module"
depends on NETFILTER_INGRESS
depends on NF_CONNTRACK
- depends on NF_TABLES
help
This option adds the flow table core infrastructure.
@@ -1005,6 +1004,15 @@ config NETFILTER_XT_TARGET_NOTRACK
depends on NETFILTER_ADVANCED
select NETFILTER_XT_TARGET_CT
+config NETFILTER_XT_TARGET_FLOWOFFLOAD
+ tristate '"FLOWOFFLOAD" target support'
+ depends on NF_FLOW_TABLE
+ depends on NETFILTER_INGRESS
+ help
+ This option adds a `FLOWOFFLOAD' target, which uses the nf_flow_offload
+ module to speed up processing of packets by bypassing the usual
+ netfilter chains
+
config NETFILTER_XT_TARGET_RATEEST
tristate '"RATEEST" target support'
depends on NETFILTER_ADVANCED
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -144,6 +144,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CLASSIF
obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o
obj-$(CONFIG_NETFILTER_XT_TARGET_CT) += xt_CT.o
obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_FLOWOFFLOAD) += xt_FLOWOFFLOAD.o
obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
obj-$(CONFIG_NETFILTER_XT_TARGET_HMARK) += xt_HMARK.o
obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
--- /dev/null
+++ b/net/netfilter/xt_FLOWOFFLOAD.c
@@ -0,0 +1,427 @@
+/*
+ * Copyright (C) 2018 Felix Fietkau <nbd@nbd.name>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/xt_FLOWOFFLOAD.h>
+#include <net/ip.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_extend.h>
+#include <net/netfilter/nf_conntrack_helper.h>
+#include <net/netfilter/nf_flow_table.h>
+
+static struct nf_flowtable nf_flowtable;
+static HLIST_HEAD(hooks);
+static DEFINE_SPINLOCK(hooks_lock);
+static struct delayed_work hook_work;
+
+struct xt_flowoffload_hook {
+ struct hlist_node list;
+ struct nf_hook_ops ops;
+ struct net *net;
+ bool registered;
+ bool used;
+};
+
+static unsigned int
+xt_flowoffload_net_hook(void *priv, struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ switch (skb->protocol) {
+ case htons(ETH_P_IP):
+ return nf_flow_offload_ip_hook(priv, skb, state);
+ case htons(ETH_P_IPV6):
+ return nf_flow_offload_ipv6_hook(priv, skb, state);
+ }
+
+ return NF_ACCEPT;
+}
+
+int nf_flow_table_iterate(struct nf_flowtable *flow_table,
+ void (*iter)(struct flow_offload *flow, void *data),
+ void *data);
+
+static int
+xt_flowoffload_create_hook(struct net_device *dev)
+{
+ struct xt_flowoffload_hook *hook;
+ struct nf_hook_ops *ops;
+
+ hook = kzalloc(sizeof(*hook), GFP_ATOMIC);
+ if (!hook)
+ return -ENOMEM;
+
+ ops = &hook->ops;
+ ops->pf = NFPROTO_NETDEV;
+ ops->hooknum = NF_NETDEV_INGRESS;
+ ops->priority = 10;
+ ops->priv = &nf_flowtable;
+ ops->hook = xt_flowoffload_net_hook;
+ ops->dev = dev;
+
+ hlist_add_head(&hook->list, &hooks);
+ mod_delayed_work(system_power_efficient_wq, &hook_work, 0);
+
+ return 0;
+}
+
+static struct xt_flowoffload_hook *
+flow_offload_lookup_hook(struct net_device *dev)
+{
+ struct xt_flowoffload_hook *hook;
+
+ hlist_for_each_entry(hook, &hooks, list) {
+ if (hook->ops.dev == dev)
+ return hook;
+ }
+
+ return NULL;
+}
+
+static void
+xt_flowoffload_check_device(struct net_device *dev)
+{
+ struct xt_flowoffload_hook *hook;
+
+ spin_lock_bh(&hooks_lock);
+ hook = flow_offload_lookup_hook(dev);
+ if (hook)
+ hook->used = true;
+ else
+ xt_flowoffload_create_hook(dev);
+ spin_unlock_bh(&hooks_lock);
+}
+
+static void
+xt_flowoffload_register_hooks(void)
+{
+ struct xt_flowoffload_hook *hook;
+
+restart:
+ hlist_for_each_entry(hook, &hooks, list) {
+ if (hook->registered)
+ continue;
+
+ hook->registered = true;
+ hook->net = dev_net(hook->ops.dev);
+ spin_unlock_bh(&hooks_lock);
+ nf_register_net_hook(hook->net, &hook->ops);
+ spin_lock_bh(&hooks_lock);
+ goto restart;
+ }
+
+}
+
+static void
+xt_flowoffload_cleanup_hooks(void)
+{
+ struct xt_flowoffload_hook *hook;
+
+restart:
+ hlist_for_each_entry(hook, &hooks, list) {
+ if (hook->used || !hook->registered)
+ continue;
+
+ hlist_del(&hook->list);
+ spin_unlock_bh(&hooks_lock);
+ nf_unregister_net_hook(hook->net, &hook->ops);
+ kfree(hook);
+ spin_lock_bh(&hooks_lock);
+ goto restart;
+ }
+
+}
+
+static void
+xt_flowoffload_check_hook(struct flow_offload *flow, void *data)
+{
+ struct flow_offload_tuple *tuple = &flow->tuplehash[0].tuple;
+ struct xt_flowoffload_hook *hook;
+ bool *found = data;
+ struct rtable *rt = (struct rtable *)tuple->dst_cache;
+
+ spin_lock_bh(&hooks_lock);
+ hlist_for_each_entry(hook, &hooks, list) {
+ if (hook->ops.dev->ifindex != tuple->iifidx &&
+ hook->ops.dev->ifindex != rt->dst.dev->ifindex)
+ continue;
+
+ hook->used = true;
+ *found = true;
+ }
+ spin_unlock_bh(&hooks_lock);
+}
+
+static void
+xt_flowoffload_hook_work(struct work_struct *work)
+{
+ struct xt_flowoffload_hook *hook;
+ bool found = false;
+ int err;
+
+ spin_lock_bh(&hooks_lock);
+ xt_flowoffload_register_hooks();
+ hlist_for_each_entry(hook, &hooks, list)
+ hook->used = false;
+ spin_unlock_bh(&hooks_lock);
+
+ err = nf_flow_table_iterate(&nf_flowtable, xt_flowoffload_check_hook,
+ &found);
+ if (err && err != -EAGAIN)
+ goto out;
+
+ spin_lock_bh(&hooks_lock);
+ xt_flowoffload_cleanup_hooks();
+ spin_unlock_bh(&hooks_lock);
+
+out:
+ if (found)
+ queue_delayed_work(system_power_efficient_wq, &hook_work, HZ);
+}
+
+static bool
+xt_flowoffload_skip(struct sk_buff *skb, int family)
+{
+ if (skb_sec_path(skb))
+ return true;
+
+ if (family == NFPROTO_IPV4) {
+ const struct ip_options *opt = &(IPCB(skb)->opt);
+
+ if (unlikely(opt->optlen))
+ return true;
+ }
+
+ return false;
+}
+
+static struct dst_entry *
+xt_flowoffload_dst(const struct nf_conn *ct, enum ip_conntrack_dir dir,
+ const struct xt_action_param *par, int ifindex)
+{
+ struct dst_entry *dst = NULL;
+ struct flowi fl;
+
+ memset(&fl, 0, sizeof(fl));
+ switch (xt_family(par)) {
+ case NFPROTO_IPV4:
+ fl.u.ip4.daddr = ct->tuplehash[dir].tuple.src.u3.ip;
+ fl.u.ip4.flowi4_oif = ifindex;
+ break;
+ case NFPROTO_IPV6:
+ fl.u.ip6.saddr = ct->tuplehash[dir].tuple.dst.u3.in6;
+ fl.u.ip6.daddr = ct->tuplehash[dir].tuple.src.u3.in6;
+ fl.u.ip6.flowi6_oif = ifindex;
+ break;
+ }
+
+ nf_route(xt_net(par), &dst, &fl, false, xt_family(par));
+
+ return dst;
+}
+
+static int
+xt_flowoffload_route(struct sk_buff *skb, const struct nf_conn *ct,
+ const struct xt_action_param *par,
+ struct nf_flow_route *route, enum ip_conntrack_dir dir)
+{
+ struct dst_entry *this_dst, *other_dst;
+
+ this_dst = xt_flowoffload_dst(ct, !dir, par, xt_out(par)->ifindex);
+ other_dst = xt_flowoffload_dst(ct, dir, par, xt_in(par)->ifindex);
+
+ route->tuple[dir].dst = this_dst;
+ route->tuple[!dir].dst = other_dst;
+
+ if (!this_dst || !other_dst)
+ return -ENOENT;
+
+ if (dst_xfrm(this_dst) || dst_xfrm(other_dst))
+ return -EINVAL;
+
+ return 0;
+}
+
+static unsigned int
+flowoffload_tg(struct sk_buff *skb, const struct xt_action_param *par)
+{
+ const struct xt_flowoffload_target_info *info = par->targinfo;
+ struct tcphdr _tcph, *tcph = NULL;
+ enum ip_conntrack_info ctinfo;
+ enum ip_conntrack_dir dir;
+ struct nf_flow_route route;
+ struct flow_offload *flow = NULL;
+ struct nf_conn *ct;
+ struct net *net;
+
+ if (xt_flowoffload_skip(skb, xt_family(par)))
+ return XT_CONTINUE;
+
+ ct = nf_ct_get(skb, &ctinfo);
+ if (ct == NULL)
+ return XT_CONTINUE;
+
+ switch (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum) {
+ case IPPROTO_TCP:
+ if (ct->proto.tcp.state != TCP_CONNTRACK_ESTABLISHED)
+ return XT_CONTINUE;
+
+ tcph = skb_header_pointer(skb, par->thoff,
+ sizeof(_tcph), &_tcph);
+ if (unlikely(!tcph || tcph->fin || tcph->rst))
+ return XT_CONTINUE;
+ break;
+ case IPPROTO_UDP:
+ break;
+ default:
+ return XT_CONTINUE;
+ }
+
+ if (nf_ct_ext_exist(ct, NF_CT_EXT_HELPER) ||
+ ct->status & IPS_SEQ_ADJUST)
+ return XT_CONTINUE;
+
+ if (!nf_ct_is_confirmed(ct))
+ return XT_CONTINUE;
+
+ if (!xt_in(par) || !xt_out(par))
+ return XT_CONTINUE;
+
+ if (test_and_set_bit(IPS_OFFLOAD_BIT, &ct->status))
+ return XT_CONTINUE;
+
+ dir = CTINFO2DIR(ctinfo);
+
+ if (xt_flowoffload_route(skb, ct, par, &route, dir) == 0)
+ flow = flow_offload_alloc(ct, &route);
+
+ dst_release(route.tuple[dir].dst);
+ dst_release(route.tuple[!dir].dst);
+
+ if (!flow)
+ goto err_flow_route;
+
+ if (tcph) {
+ ct->proto.tcp.seen[0].flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
+ ct->proto.tcp.seen[1].flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
+ }
+
+ if (flow_offload_add(&nf_flowtable, flow) < 0)
+ goto err_flow_add;
+
+ xt_flowoffload_check_device(xt_in(par));
+ xt_flowoffload_check_device(xt_out(par));
+
+ net = read_pnet(&nf_flowtable.ft_net);
+ if (!net)
+ write_pnet(&nf_flowtable.ft_net, xt_net(par));
+
+ if (info->flags & XT_FLOWOFFLOAD_HW)
+ nf_flow_offload_hw_add(xt_net(par), flow, ct);
+
+ return XT_CONTINUE;
+
+err_flow_add:
+ flow_offload_free(flow);
+err_flow_route:
+ clear_bit(IPS_OFFLOAD_BIT, &ct->status);
+ return XT_CONTINUE;
+}
+
+
+static int flowoffload_chk(const struct xt_tgchk_param *par)
+{
+ struct xt_flowoffload_target_info *info = par->targinfo;
+
+ if (info->flags & ~XT_FLOWOFFLOAD_MASK)
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct xt_target offload_tg_reg __read_mostly = {
+ .family = NFPROTO_UNSPEC,
+ .name = "FLOWOFFLOAD",
+ .revision = 0,
+ .targetsize = sizeof(struct xt_flowoffload_target_info),
+ .usersize = sizeof(struct xt_flowoffload_target_info),
+ .checkentry = flowoffload_chk,
+ .target = flowoffload_tg,
+ .me = THIS_MODULE,
+};
+
+static int xt_flowoffload_table_init(struct nf_flowtable *table)
+{
+ table->flags = NF_FLOWTABLE_F_HW;
+ nf_flow_table_init(table);
+ return 0;
+}
+
+static void xt_flowoffload_table_cleanup(struct nf_flowtable *table)
+{
+ nf_flow_table_free(table);
+}
+
+static int flow_offload_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct xt_flowoffload_hook *hook = NULL;
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+ if (event != NETDEV_UNREGISTER)
+ return NOTIFY_DONE;
+
+ spin_lock_bh(&hooks_lock);
+ hook = flow_offload_lookup_hook(dev);
+ if (hook) {
+ hlist_del(&hook->list);
+ }
+ spin_unlock_bh(&hooks_lock);
+ if (hook) {
+ nf_unregister_net_hook(hook->net, &hook->ops);
+ kfree(hook);
+ }
+
+ nf_flow_table_cleanup(dev);
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block flow_offload_netdev_notifier = {
+ .notifier_call = flow_offload_netdev_event,
+};
+
+static int __init xt_flowoffload_tg_init(void)
+{
+ int ret;
+
+ register_netdevice_notifier(&flow_offload_netdev_notifier);
+
+ INIT_DELAYED_WORK(&hook_work, xt_flowoffload_hook_work);
+
+ ret = xt_flowoffload_table_init(&nf_flowtable);
+ if (ret)
+ return ret;
+
+ ret = xt_register_target(&offload_tg_reg);
+ if (ret)
+ xt_flowoffload_table_cleanup(&nf_flowtable);
+
+ return ret;
+}
+
+static void __exit xt_flowoffload_tg_exit(void)
+{
+ xt_unregister_target(&offload_tg_reg);
+ xt_flowoffload_table_cleanup(&nf_flowtable);
+ unregister_netdevice_notifier(&flow_offload_netdev_notifier);
+}
+
+MODULE_LICENSE("GPL");
+module_init(xt_flowoffload_tg_init);
+module_exit(xt_flowoffload_tg_exit);
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -7,7 +7,6 @@
#include <linux/netdevice.h>
#include <net/ip.h>
#include <net/ip6_route.h>
-#include <net/netfilter/nf_tables.h>
#include <net/netfilter/nf_flow_table.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
@@ -338,8 +337,7 @@ flow_offload_lookup(struct nf_flowtable
}
EXPORT_SYMBOL_GPL(flow_offload_lookup);
-static int
-nf_flow_table_iterate(struct nf_flowtable *flow_table,
+int nf_flow_table_iterate(struct nf_flowtable *flow_table,
void (*iter)(struct flow_offload *flow, void *data),
void *data)
{
@@ -372,6 +370,7 @@ nf_flow_table_iterate(struct nf_flowtabl
return err;
}
+EXPORT_SYMBOL_GPL(nf_flow_table_iterate);
static void nf_flow_offload_gc_step(struct flow_offload *flow, void *data)
{
--- /dev/null
+++ b/include/uapi/linux/netfilter/xt_FLOWOFFLOAD.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _XT_FLOWOFFLOAD_H
+#define _XT_FLOWOFFLOAD_H
+
+#include <linux/types.h>
+
+enum {
+ XT_FLOWOFFLOAD_HW = 1 << 0,
+
+ XT_FLOWOFFLOAD_MASK = XT_FLOWOFFLOAD_HW
+};
+
+struct xt_flowoffload_target_info {
+ __u32 flags;
+};
+
+#endif /* _XT_FLOWOFFLOAD_H */
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -128,6 +128,10 @@ static inline void flow_offload_dead(str
flow->flags |= FLOW_OFFLOAD_DYING;
}
+int nf_flow_table_iterate(struct nf_flowtable *flow_table,
+ void (*iter)(struct flow_offload *flow, void *data),
+ void *data);
+
int nf_flow_snat_port(const struct flow_offload *flow,
struct sk_buff *skb, unsigned int thoff,
u8 protocol, enum flow_offload_tuple_dir dir);

24
target/linux/generic/hack-5.4/651-wireless_mesh_header.patch Normal file
View File

@ -0,0 +1,24 @@
From 6d3bc769657b0ee7c7506dad9911111c4226a7ea Mon Sep 17 00:00:00 2001
From: Imre Kaloz <kaloz@openwrt.org>
Date: Fri, 7 Jul 2017 17:21:05 +0200
Subject: mac80211: increase wireless mesh header size
lede-commit 3d4466cfd8f75f717efdb1f96fdde3c70d865fc1
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
include/linux/netdevice.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -138,8 +138,8 @@ static inline bool dev_xmit_complete(int
#if defined(CONFIG_HYPERV_NET)
# define LL_MAX_HEADER 128
-#elif defined(CONFIG_WLAN) || IS_ENABLED(CONFIG_AX25)
-# if defined(CONFIG_MAC80211_MESH)
+#elif defined(CONFIG_WLAN) || IS_ENABLED(CONFIG_AX25) || 1
+# if defined(CONFIG_MAC80211_MESH) || 1
# define LL_MAX_HEADER 128
# else
# define LL_MAX_HEADER 96

27
target/linux/generic/hack-5.4/660-fq_codel_defaults.patch Normal file
View File

@ -0,0 +1,27 @@
From a6ccb238939b25851474a279b20367fd24a0e816 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:21:53 +0200
Subject: hack: net: fq_codel: tune defaults for small devices
Assume that x86_64 devices always have a big memory and do not need this
optimization compared to devices with only 32 MB or 64 MB RAM.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
net/sched/sch_fq_codel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -462,7 +462,11 @@ static int fq_codel_init(struct Qdisc *s
sch->limit = 10*1024;
q->flows_cnt = 1024;
+#ifdef CONFIG_X86_64
q->memory_limit = 32 << 20; /* 32 MBytes */
+#else
+ q->memory_limit = 4 << 20; /* 4 MBytes */
+#endif
q->drop_batch_size = 64;
q->quantum = psched_mtu(qdisc_dev(sch));
INIT_LIST_HEAD(&q->new_flows);

100
target/linux/generic/hack-5.4/661-use_fq_codel_by_default.patch Normal file
View File

@ -0,0 +1,100 @@
From 1d418f7e88035ed7a94073f6354246c66e9193e9 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:22:58 +0200
Subject: fq_codel: switch default qdisc from pfifo_fast to fq_codel and remove pfifo_fast
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/net/sch_generic.h | 3 ++-
net/sched/Kconfig | 3 ++-
net/sched/sch_api.c | 2 +-
net/sched/sch_fq_codel.c | 3 ++-
net/sched/sch_generic.c | 4 ++--
5 files changed, 9 insertions(+), 6 deletions(-)
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -569,12 +569,13 @@ extern struct Qdisc_ops noop_qdisc_ops;
extern struct Qdisc_ops pfifo_fast_ops;
extern struct Qdisc_ops mq_qdisc_ops;
extern struct Qdisc_ops noqueue_qdisc_ops;
+extern struct Qdisc_ops fq_codel_qdisc_ops;
extern const struct Qdisc_ops *default_qdisc_ops;
static inline const struct Qdisc_ops *
get_default_qdisc_ops(const struct net_device *dev, int ntx)
{
return ntx < dev->real_num_tx_queues ?
- default_qdisc_ops : &pfifo_fast_ops;
+ default_qdisc_ops : &fq_codel_qdisc_ops;
}
struct Qdisc_class_common {
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -4,8 +4,9 @@
#
menuconfig NET_SCHED
- bool "QoS and/or fair queueing"
+ def_bool y
select NET_SCH_FIFO
+ select NET_SCH_FQ_CODEL
---help---
When the kernel has several packets to send out over a network
device, it has to decide which ones to send first, which ones to
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -2271,7 +2271,7 @@ static int __init pktsched_init(void)
return err;
}
- register_qdisc(&pfifo_fast_ops);
+ register_qdisc(&fq_codel_qdisc_ops);
register_qdisc(&pfifo_qdisc_ops);
register_qdisc(&bfifo_qdisc_ops);
register_qdisc(&pfifo_head_drop_qdisc_ops);
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -702,7 +702,7 @@ static const struct Qdisc_class_ops fq_c
.walk = fq_codel_walk,
};
-static struct Qdisc_ops fq_codel_qdisc_ops __read_mostly = {
+struct Qdisc_ops fq_codel_qdisc_ops __read_mostly = {
.cl_ops = &fq_codel_class_ops,
.id = "fq_codel",
.priv_size = sizeof(struct fq_codel_sched_data),
@@ -717,6 +717,7 @@ static struct Qdisc_ops fq_codel_qdisc_o
.dump_stats = fq_codel_dump_stats,
.owner = THIS_MODULE,
};
+EXPORT_SYMBOL(fq_codel_qdisc_ops);
static int __init fq_codel_module_init(void)
{
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -32,7 +32,7 @@
#include <net/xfrm.h>
/* Qdisc to use by default */
-const struct Qdisc_ops *default_qdisc_ops = &pfifo_fast_ops;
+const struct Qdisc_ops *default_qdisc_ops = &fq_codel_qdisc_ops;
EXPORT_SYMBOL(default_qdisc_ops);
/* Main transmission queue. */
@@ -1034,12 +1034,12 @@ static void attach_one_default_qdisc(str
void *_unused)
{
struct Qdisc *qdisc;
- const struct Qdisc_ops *ops = default_qdisc_ops;
+ const struct Qdisc_ops *ops = &fq_codel_qdisc_ops;
if (dev->priv_flags & IFF_NO_QUEUE)
ops = &noqueue_qdisc_ops;
else if(dev->type == ARPHRD_CAN)
- ops = &pfifo_fast_ops;
+ ops = &fq_codel_qdisc_ops;
qdisc = qdisc_create_dflt(dev_queue, ops, TC_H_ROOT, NULL);
if (!qdisc) {

224
target/linux/generic/hack-5.4/662-remove_pfifo_fast.patch Normal file
View File

@ -0,0 +1,224 @@
From b531d492d5ef1cf9dba0f4888eb5fd8624a6d762 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:23:42 +0200
Subject: net: sched: switch default qdisc from pfifo_fast to fq_codel and remove pfifo_fast
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
net/sched/sch_generic.c | 140 ------------------------------------------------
1 file changed, 140 deletions(-)
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -594,211 +594,6 @@ struct Qdisc_ops noqueue_qdisc_ops __rea
.owner = THIS_MODULE,
};
-static const u8 prio2band[TC_PRIO_MAX + 1] = {
- 1, 2, 2, 2, 1, 2, 0, 0 , 1, 1, 1, 1, 1, 1, 1, 1
-};
-
-/* 3-band FIFO queue: old style, but should be a bit faster than
- generic prio+fifo combination.
- */
-
-#define PFIFO_FAST_BANDS 3
-
-/*
- * Private data for a pfifo_fast scheduler containing:
- * - rings for priority bands
- */
-struct pfifo_fast_priv {
- struct skb_array q[PFIFO_FAST_BANDS];
-};
-
-static inline struct skb_array *band2list(struct pfifo_fast_priv *priv,
- int band)
-{
- return &priv->q[band];
-}
-
-static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc *qdisc,
- struct sk_buff **to_free)
-{
- int band = prio2band[skb->priority & TC_PRIO_MAX];
- struct pfifo_fast_priv *priv = qdisc_priv(qdisc);
- struct skb_array *q = band2list(priv, band);
- unsigned int pkt_len = qdisc_pkt_len(skb);
- int err;
-
- err = skb_array_produce(q, skb);
-
- if (unlikely(err)) {
- if (qdisc_is_percpu_stats(qdisc))
- return qdisc_drop_cpu(skb, qdisc, to_free);
- else
- return qdisc_drop(skb, qdisc, to_free);
- }
-
- qdisc_update_stats_at_enqueue(qdisc, pkt_len);
- return NET_XMIT_SUCCESS;
-}
-
-static struct sk_buff *pfifo_fast_dequeue(struct Qdisc *qdisc)
-{
- struct pfifo_fast_priv *priv = qdisc_priv(qdisc);
- struct sk_buff *skb = NULL;
- int band;
-
- for (band = 0; band < PFIFO_FAST_BANDS && !skb; band++) {
- struct skb_array *q = band2list(priv, band);
-
- if (__skb_array_empty(q))
- continue;
-
- skb = __skb_array_consume(q);
- }
- if (likely(skb)) {
- qdisc_update_stats_at_dequeue(qdisc, skb);
- } else {
- WRITE_ONCE(qdisc->empty, true);
- }
-
- return skb;
-}
-
-static struct sk_buff *pfifo_fast_peek(struct Qdisc *qdisc)
-{
- struct pfifo_fast_priv *priv = qdisc_priv(qdisc);
- struct sk_buff *skb = NULL;
- int band;
-
- for (band = 0; band < PFIFO_FAST_BANDS && !skb; band++) {
- struct skb_array *q = band2list(priv, band);
-
- skb = __skb_array_peek(q);
- }
-
- return skb;
-}
-
-static void pfifo_fast_reset(struct Qdisc *qdisc)
-{
- int i, band;
- struct pfifo_fast_priv *priv = qdisc_priv(qdisc);
-
- for (band = 0; band < PFIFO_FAST_BANDS; band++) {
- struct skb_array *q = band2list(priv, band);
- struct sk_buff *skb;
-
- /* NULL ring is possible if destroy path is due to a failed
- * skb_array_init() in pfifo_fast_init() case.
- */
- if (!q->ring.queue)
- continue;
-
- while ((skb = __skb_array_consume(q)) != NULL)
- kfree_skb(skb);
- }
-
- if (qdisc_is_percpu_stats(qdisc)) {
- for_each_possible_cpu(i) {
- struct gnet_stats_queue *q;
-
- q = per_cpu_ptr(qdisc->cpu_qstats, i);
- q->backlog = 0;
- q->qlen = 0;
- }
- }
-}
-
-static int pfifo_fast_dump(struct Qdisc *qdisc, struct sk_buff *skb)
-{
- struct tc_prio_qopt opt = { .bands = PFIFO_FAST_BANDS };
-
- memcpy(&opt.priomap, prio2band, TC_PRIO_MAX + 1);
- if (nla_put(skb, TCA_OPTIONS, sizeof(opt), &opt))
- goto nla_put_failure;
- return skb->len;
-
-nla_put_failure:
- return -1;
-}
-
-static int pfifo_fast_init(struct Qdisc *qdisc, struct nlattr *opt,
- struct netlink_ext_ack *extack)
-{
- unsigned int qlen = qdisc_dev(qdisc)->tx_queue_len;
- struct pfifo_fast_priv *priv = qdisc_priv(qdisc);
- int prio;
-
- /* guard against zero length rings */
- if (!qlen)
- return -EINVAL;
-
- for (prio = 0; prio < PFIFO_FAST_BANDS; prio++) {
- struct skb_array *q = band2list(priv, prio);
- int err;
-
- err = skb_array_init(q, qlen, GFP_KERNEL);
- if (err)
- return -ENOMEM;
- }
-
- /* Can by-pass the queue discipline */
- qdisc->flags |= TCQ_F_CAN_BYPASS;
- return 0;
-}
-
-static void pfifo_fast_destroy(struct Qdisc *sch)
-{
- struct pfifo_fast_priv *priv = qdisc_priv(sch);
- int prio;
-
- for (prio = 0; prio < PFIFO_FAST_BANDS; prio++) {
- struct skb_array *q = band2list(priv, prio);
-
- /* NULL ring is possible if destroy path is due to a failed
- * skb_array_init() in pfifo_fast_init() case.
- */
- if (!q->ring.queue)
- continue;
- /* Destroy ring but no need to kfree_skb because a call to
- * pfifo_fast_reset() has already done that work.
- */
- ptr_ring_cleanup(&q->ring, NULL);
- }
-}
-
-static int pfifo_fast_change_tx_queue_len(struct Qdisc *sch,
- unsigned int new_len)
-{
- struct pfifo_fast_priv *priv = qdisc_priv(sch);
- struct skb_array *bands[PFIFO_FAST_BANDS];
- int prio;
-
- for (prio = 0; prio < PFIFO_FAST_BANDS; prio++) {
- struct skb_array *q = band2list(priv, prio);
-
- bands[prio] = q;
- }
-
- return skb_array_resize_multiple(bands, PFIFO_FAST_BANDS, new_len,
- GFP_KERNEL);
-}
-
-struct Qdisc_ops pfifo_fast_ops __read_mostly = {
- .id = "pfifo_fast",
- .priv_size = sizeof(struct pfifo_fast_priv),
- .enqueue = pfifo_fast_enqueue,
- .dequeue = pfifo_fast_dequeue,
- .peek = pfifo_fast_peek,
- .init = pfifo_fast_init,
- .destroy = pfifo_fast_destroy,
- .reset = pfifo_fast_reset,
- .dump = pfifo_fast_dump,
- .change_tx_queue_len = pfifo_fast_change_tx_queue_len,
- .owner = THIS_MODULE,
- .static_flags = TCQ_F_NOLOCK | TCQ_F_CPUSTATS,
-};
-EXPORT_SYMBOL(pfifo_fast_ops);
-
struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue,
const struct Qdisc_ops *ops,
struct netlink_ext_ack *extack)

140
target/linux/generic/hack-5.4/700-swconfig_switch_drivers.patch Normal file
View File

@ -0,0 +1,140 @@
From 36e516290611e613aa92996cb4339561452695b4 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:24:23 +0200
Subject: net: swconfig: adds openwrt switch layer
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/net/phy/Kconfig | 83 +++++++++++++++++++++++++++++++++++++++++++++++
drivers/net/phy/Makefile | 15 +++++++++
include/uapi/linux/Kbuild | 1 +
3 files changed, 99 insertions(+)
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -249,6 +249,89 @@ config LED_TRIGGER_PHY
for any speed known to the PHY.
+comment "Switch configuration API + drivers"
+
+config SWCONFIG
+ tristate "Switch configuration API"
+ ---help---
+ Switch configuration API using netlink. This allows
+ you to configure the VLAN features of certain switches.
+
+config SWCONFIG_LEDS
+ bool "Switch LED trigger support"
+ depends on (SWCONFIG && LEDS_TRIGGERS)
+
+config ADM6996_PHY
+ tristate "Driver for ADM6996 switches"
+ select SWCONFIG
+ ---help---
+ Currently supports the ADM6996FC and ADM6996M switches.
+ Support for FC is very limited.
+
+config AR8216_PHY
+ tristate "Driver for Atheros AR8216 switches"
+ select ETHERNET_PACKET_MANGLE
+ select SWCONFIG
+
+config AR8216_PHY_LEDS
+ bool "Atheros AR8216 switch LED support"
+ depends on (AR8216_PHY && LEDS_CLASS)
+
+source "drivers/net/phy/b53/Kconfig"
+
+config IP17XX_PHY
+ tristate "Driver for IC+ IP17xx switches"
+ select SWCONFIG
+
+config MVSWITCH_PHY
+ tristate "Driver for Marvell 88E6060 switches"
+ select ETHERNET_PACKET_MANGLE
+
+config MVSW61XX_PHY
+ tristate "Driver for Marvell 88E6171/6172 switches"
+ select SWCONFIG
+
+config PSB6970_PHY
+ tristate "Lantiq XWAY Tantos (PSB6970) Ethernet switch"
+ select SWCONFIG
+ select ETHERNET_PACKET_MANGLE
+
+config RTL8306_PHY
+ tristate "Driver for Realtek RTL8306S switches"
+ select SWCONFIG
+
+config RTL8366_SMI
+ tristate "Driver for the RTL8366 SMI interface"
+ depends on GPIOLIB
+ ---help---
+ This module implements the SMI interface protocol which is used
+ by some RTL8366 ethernet switch devices via the generic GPIO API.
+
+if RTL8366_SMI
+
+config RTL8366_SMI_DEBUG_FS
+ bool "RTL8366 SMI interface debugfs support"
+ depends on DEBUG_FS
+ default n
+
+config RTL8366S_PHY
+ tristate "Driver for the Realtek RTL8366S switch"
+ select SWCONFIG
+
+config RTL8366RB_PHY
+ tristate "Driver for the Realtek RTL8366RB switch"
+ select SWCONFIG
+
+config RTL8367_PHY
+ tristate "Driver for the Realtek RTL8367R/M switches"
+ select SWCONFIG
+
+config RTL8367B_PHY
+ tristate "Driver fot the Realtek RTL8367R-VB switch"
+ select SWCONFIG
+
+endif # RTL8366_SMI
+
comment "MII PHY device drivers"
config SFP
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -22,6 +22,21 @@ libphy-$(CONFIG_LED_TRIGGER_PHY) += phy_
obj-$(CONFIG_PHYLINK) += phylink.o
obj-$(CONFIG_PHYLIB) += libphy.o
+obj-$(CONFIG_SWCONFIG) += swconfig.o
+obj-$(CONFIG_ADM6996_PHY) += adm6996.o
+obj-$(CONFIG_AR8216_PHY) += ar8216.o ar8327.o
+obj-$(CONFIG_SWCONFIG_B53) += b53/
+obj-$(CONFIG_IP17XX_PHY) += ip17xx.o
+obj-$(CONFIG_MVSWITCH_PHY) += mvswitch.o
+obj-$(CONFIG_MVSW61XX_PHY) += mvsw61xx.o
+obj-$(CONFIG_PSB6970_PHY) += psb6970.o
+obj-$(CONFIG_RTL8306_PHY) += rtl8306.o
+obj-$(CONFIG_RTL8366_SMI) += rtl8366_smi.o
+obj-$(CONFIG_RTL8366S_PHY) += rtl8366s.o
+obj-$(CONFIG_RTL8366RB_PHY) += rtl8366rb.o
+obj-$(CONFIG_RTL8367_PHY) += rtl8367.o
+obj-$(CONFIG_RTL8367B_PHY) += rtl8367b.o
+
obj-$(CONFIG_MDIO_ASPEED) += mdio-aspeed.o
obj-$(CONFIG_MDIO_BCM_IPROC) += mdio-bcm-iproc.o
obj-$(CONFIG_MDIO_BCM_UNIMAC) += mdio-bcm-unimac.o
--- a/include/linux/platform_data/b53.h
+++ b/include/linux/platform_data/b53.h
@@ -29,6 +29,9 @@ struct b53_platform_data {
u32 chip_id;
u16 enabled_ports;
+ /* allow to specify an ethX alias */
+ const char *alias;
+
/* only used by MMAP'd driver */
unsigned big_endian:1;
void __iomem *regs;

27
target/linux/generic/hack-5.4/702-phy_add_aneg_done_function.patch Normal file
View File

@ -0,0 +1,27 @@
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -524,6 +524,12 @@ struct phy_driver {
/* Determines the negotiated speed and duplex */
int (*read_status)(struct phy_device *phydev);
+ /*
+ * Update the value in phydev->link to reflect the
+ * current link value
+ */
+ int (*update_link)(struct phy_device *phydev);
+
/* Clears any pending interrupts */
int (*ack_interrupt)(struct phy_device *phydev);
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1827,6 +1827,9 @@ int genphy_update_link(struct phy_device
if (bmcr & BMCR_ANRESTART)
goto done;
+ if (phydev->drv && phydev->drv->update_link)
+ return phydev->drv->update_link(phydev);
+
/* The link state is latched low so that momentary link
* drops can be detected. Do not double-read the status
* in polling mode to detect such short link drops.

176
target/linux/generic/hack-5.4/721-phy_packets.patch Normal file
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@ -0,0 +1,176 @@
From ffe387740bbe88dd88bbe04d6375902708003d6e Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:25:00 +0200
Subject: net: add packet mangeling patch
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/linux/netdevice.h | 11 +++++++++++
include/linux/skbuff.h | 14 ++++----------
net/Kconfig | 6 ++++++
net/core/dev.c | 18 ++++++++++++++----
net/core/skbuff.c | 17 +++++++++++++++++
net/ethernet/eth.c | 6 ++++++
6 files changed, 58 insertions(+), 14 deletions(-)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1546,6 +1546,7 @@ enum netdev_priv_flags {
IFF_FAILOVER_SLAVE = 1<<28,
IFF_L3MDEV_RX_HANDLER = 1<<29,
IFF_LIVE_RENAME_OK = 1<<30,
+ IFF_NO_IP_ALIGN = 1<<31,
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
@@ -1578,6 +1579,7 @@ enum netdev_priv_flags {
#define IFF_FAILOVER_SLAVE IFF_FAILOVER_SLAVE
#define IFF_L3MDEV_RX_HANDLER IFF_L3MDEV_RX_HANDLER
#define IFF_LIVE_RENAME_OK IFF_LIVE_RENAME_OK
+#define IFF_NO_IP_ALIGN IFF_NO_IP_ALIGN
/**
* struct net_device - The DEVICE structure.
@@ -1879,6 +1881,11 @@ struct net_device {
const struct tlsdev_ops *tlsdev_ops;
#endif
+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
+ void (*eth_mangle_rx)(struct net_device *dev, struct sk_buff *skb);
+ struct sk_buff *(*eth_mangle_tx)(struct net_device *dev, struct sk_buff *skb);
+#endif
+
const struct header_ops *header_ops;
unsigned int flags;
@@ -1961,6 +1968,10 @@ struct net_device {
struct mpls_dev __rcu *mpls_ptr;
#endif
+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
+ void *phy_ptr; /* PHY device specific data */
+#endif
+
/*
* Cache lines mostly used on receive path (including eth_type_trans())
*/
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2667,6 +2667,10 @@ static inline int pskb_trim(struct sk_bu
return (len < skb->len) ? __pskb_trim(skb, len) : 0;
}
+extern struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,
+ unsigned int length, gfp_t gfp);
+
+
/**
* pskb_trim_unique - remove end from a paged unique (not cloned) buffer
* @skb: buffer to alter
@@ -2798,16 +2802,6 @@ static inline struct sk_buff *dev_alloc_
}
-static inline struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,
- unsigned int length, gfp_t gfp)
-{
- struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp);
-
- if (NET_IP_ALIGN && skb)
- skb_reserve(skb, NET_IP_ALIGN);
- return skb;
-}
-
static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev,
unsigned int length)
{
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -26,6 +26,12 @@ menuconfig NET
if NET
+config ETHERNET_PACKET_MANGLE
+ bool
+ help
+ This option can be selected by phy drivers that need to mangle
+ packets going in or out of an ethernet device.
+
config WANT_COMPAT_NETLINK_MESSAGES
bool
help
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3195,10 +3195,20 @@ static int xmit_one(struct sk_buff *skb,
if (dev_nit_active(dev))
dev_queue_xmit_nit(skb, dev);
- len = skb->len;
- trace_net_dev_start_xmit(skb, dev);
- rc = netdev_start_xmit(skb, dev, txq, more);
- trace_net_dev_xmit(skb, rc, dev, len);
+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
+ if (!dev->eth_mangle_tx ||
+ (skb = dev->eth_mangle_tx(dev, skb)) != NULL)
+#else
+ if (1)
+#endif
+ {
+ len = skb->len;
+ trace_net_dev_start_xmit(skb, dev);
+ rc = netdev_start_xmit(skb, dev, txq, more);
+ trace_net_dev_xmit(skb, rc, dev, len);
+ } else {
+ rc = NETDEV_TX_OK;
+ }
return rc;
}
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -60,6 +60,7 @@
#include <linux/prefetch.h>
#include <linux/if_vlan.h>
#include <linux/mpls.h>
+#include <linux/if.h>
#include <net/protocol.h>
#include <net/dst.h>
@@ -540,6 +541,22 @@ skb_fail:
}
EXPORT_SYMBOL(__napi_alloc_skb);
+struct sk_buff *__netdev_alloc_skb_ip_align(struct net_device *dev,
+ unsigned int length, gfp_t gfp)
+{
+ struct sk_buff *skb = __netdev_alloc_skb(dev, length + NET_IP_ALIGN, gfp);
+
+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
+ if (dev && (dev->priv_flags & IFF_NO_IP_ALIGN))
+ return skb;
+#endif
+
+ if (NET_IP_ALIGN && skb)
+ skb_reserve(skb, NET_IP_ALIGN);
+ return skb;
+}
+EXPORT_SYMBOL(__netdev_alloc_skb_ip_align);
+
void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, int off,
int size, unsigned int truesize)
{
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -171,6 +171,12 @@ __be16 eth_type_trans(struct sk_buff *sk
const struct ethhdr *eth;
skb->dev = dev;
+
+#ifdef CONFIG_ETHERNET_PACKET_MANGLE
+ if (dev->eth_mangle_rx)
+ dev->eth_mangle_rx(dev, skb);
+#endif
+
skb_reset_mac_header(skb);
eth = (struct ethhdr *)skb->data;

98
target/linux/generic/hack-5.4/773-bgmac-add-srab-switch.patch Normal file
View File

@ -0,0 +1,98 @@
From 3cb240533ab787899dc7f17aa7d6c5b4810e2e58 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Fri, 7 Jul 2017 17:26:01 +0200
Subject: bcm53xx: bgmac: use srab switch driver
use the srab switch driver on these SoCs.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/net/ethernet/broadcom/bgmac-bcma.c | 1 +
drivers/net/ethernet/broadcom/bgmac.c | 24 ++++++++++++++++++++++++
drivers/net/ethernet/broadcom/bgmac.h | 4 ++++
3 files changed, 29 insertions(+)
--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
@@ -268,6 +268,7 @@ static int bgmac_probe(struct bcma_devic
bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
+ bgmac->feature_flags |= BGMAC_FEAT_SRAB;
break;
default:
bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -12,6 +12,7 @@
#include <linux/bcma/bcma.h>
#include <linux/etherdevice.h>
#include <linux/interrupt.h>
+#include <linux/platform_data/b53.h>
#include <linux/bcm47xx_nvram.h>
#include <linux/phy.h>
#include <linux/phy_fixed.h>
@@ -1407,6 +1408,17 @@ static const struct ethtool_ops bgmac_et
.set_link_ksettings = phy_ethtool_set_link_ksettings,
};
+static struct b53_platform_data bgmac_b53_pdata = {
+};
+
+static struct platform_device bgmac_b53_dev = {
+ .name = "b53-srab-switch",
+ .id = -1,
+ .dev = {
+ .platform_data = &bgmac_b53_pdata,
+ },
+};
+
/**************************************************
* MII
**************************************************/
@@ -1538,6 +1550,14 @@ int bgmac_enet_probe(struct bgmac *bgmac
net_dev->hw_features = net_dev->features;
net_dev->vlan_features = net_dev->features;
+ if ((bgmac->feature_flags & BGMAC_FEAT_SRAB) && !bgmac_b53_pdata.regs) {
+ bgmac_b53_pdata.regs = ioremap_nocache(0x18007000, 0x1000);
+
+ err = platform_device_register(&bgmac_b53_dev);
+ if (!err)
+ bgmac->b53_device = &bgmac_b53_dev;
+ }
+
err = register_netdev(bgmac->net_dev);
if (err) {
dev_err(bgmac->dev, "Cannot register net device\n");
@@ -1560,6 +1580,10 @@ EXPORT_SYMBOL_GPL(bgmac_enet_probe);
void bgmac_enet_remove(struct bgmac *bgmac)
{
+ if (bgmac->b53_device)
+ platform_device_unregister(&bgmac_b53_dev);
+ bgmac->b53_device = NULL;
+
unregister_netdev(bgmac->net_dev);
phy_disconnect(bgmac->net_dev->phydev);
netif_napi_del(&bgmac->napi);
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -427,6 +427,7 @@
#define BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII BIT(18)
#define BGMAC_FEAT_CC7_IF_TYPE_RGMII BIT(19)
#define BGMAC_FEAT_IDM_MASK BIT(20)
+#define BGMAC_FEAT_SRAB BIT(21)
struct bgmac_slot_info {
union {
@@ -532,6 +533,9 @@ struct bgmac {
void (*cmn_maskset32)(struct bgmac *bgmac, u16 offset, u32 mask,
u32 set);
int (*phy_connect)(struct bgmac *bgmac);
+
+ /* platform device for associated switch */
+ struct platform_device *b53_device;
};
struct bgmac *bgmac_alloc(struct device *dev);

145
target/linux/generic/hack-5.4/901-debloat_sock_diag.patch Normal file
View File

@ -0,0 +1,145 @@
From 3b6115d6b57a263bdc8c9b1df273bd4a7955eead Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 8 Jul 2017 08:16:31 +0200
Subject: debloat: add some debloat patches, strip down procfs and make O_DIRECT support optional, saves ~15K after lzma on MIPS
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
net/Kconfig | 3 +++
net/core/Makefile | 3 ++-
net/core/sock.c | 2 ++
net/ipv4/Kconfig | 1 +
net/netlink/Kconfig | 1 +
net/packet/Kconfig | 1 +
net/unix/Kconfig | 1 +
7 files changed, 11 insertions(+), 1 deletion(-)
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -103,6 +103,9 @@ source "net/netlabel/Kconfig"
endif # if INET
+config SOCK_DIAG
+ bool
+
config NETWORK_SECMARK
bool "Security Marking"
help
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -10,9 +10,10 @@ obj-$(CONFIG_SYSCTL) += sysctl_net_core.
obj-y += dev.o ethtool.o dev_addr_lists.o dst.o netevent.o \
neighbour.o rtnetlink.o utils.o link_watch.o filter.o \
- sock_diag.o dev_ioctl.o tso.o sock_reuseport.o \
+ dev_ioctl.o tso.o sock_reuseport.o \
fib_notifier.o xdp.o flow_offload.o
+obj-$(CONFIG_SOCK_DIAG) += sock_diag.o
obj-y += net-sysfs.o
obj-$(CONFIG_PAGE_POOL) += page_pool.o
obj-$(CONFIG_PROC_FS) += net-procfs.o
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -140,6 +140,7 @@
static DEFINE_MUTEX(proto_list_mutex);
static LIST_HEAD(proto_list);
+static atomic64_t cookie_gen;
static void sock_inuse_add(struct net *net, int val);
@@ -539,6 +540,18 @@ discard_and_relse:
}
EXPORT_SYMBOL(__sk_receive_skb);
+u64 sock_gen_cookie(struct sock *sk)
+{
+ while (1) {
+ u64 res = atomic64_read(&sk->sk_cookie);
+
+ if (res)
+ return res;
+ res = atomic64_inc_return(&cookie_gen);
+ atomic64_cmpxchg(&sk->sk_cookie, 0, res);
+ }
+}
+
struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie)
{
struct dst_entry *dst = __sk_dst_get(sk);
@@ -1746,9 +1759,11 @@ static void __sk_free(struct sock *sk)
if (likely(sk->sk_net_refcnt))
sock_inuse_add(sock_net(sk), -1);
+#ifdef CONFIG_SOCK_DIAG
if (unlikely(sk->sk_net_refcnt && sock_diag_has_destroy_listeners(sk)))
sock_diag_broadcast_destroy(sk);
else
+#endif
sk_destruct(sk);
}
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -19,19 +19,6 @@ static const struct sock_diag_handler *s
static int (*inet_rcv_compat)(struct sk_buff *skb, struct nlmsghdr *nlh);
static DEFINE_MUTEX(sock_diag_table_mutex);
static struct workqueue_struct *broadcast_wq;
-static atomic64_t cookie_gen;
-
-u64 sock_gen_cookie(struct sock *sk)
-{
- while (1) {
- u64 res = atomic64_read(&sk->sk_cookie);
-
- if (res)
- return res;
- res = atomic64_inc_return(&cookie_gen);
- atomic64_cmpxchg(&sk->sk_cookie, 0, res);
- }
-}
int sock_diag_check_cookie(struct sock *sk, const __u32 *cookie)
{
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -400,6 +400,7 @@ config INET_TUNNEL
config INET_DIAG
tristate "INET: socket monitoring interface"
+ select SOCK_DIAG
default y
---help---
Support for INET (TCP, DCCP, etc) socket monitoring interface used by
--- a/net/netlink/Kconfig
+++ b/net/netlink/Kconfig
@@ -5,6 +5,7 @@
config NETLINK_DIAG
tristate "NETLINK: socket monitoring interface"
+ select SOCK_DIAG
default n
---help---
Support for NETLINK socket monitoring interface used by the ss tool.
--- a/net/packet/Kconfig
+++ b/net/packet/Kconfig
@@ -19,6 +19,7 @@ config PACKET
config PACKET_DIAG
tristate "Packet: sockets monitoring interface"
depends on PACKET
+ select SOCK_DIAG
default n
---help---
Support for PF_PACKET sockets monitoring interface used by the ss tool.
--- a/net/unix/Kconfig
+++ b/net/unix/Kconfig
@@ -28,6 +28,7 @@ config UNIX_SCM
config UNIX_DIAG
tristate "UNIX: socket monitoring interface"
depends on UNIX
+ select SOCK_DIAG
default n
---help---
Support for UNIX socket monitoring interface used by the ss tool.

408
target/linux/generic/hack-5.4/902-debloat_proc.patch Normal file
View File

@ -0,0 +1,408 @@
From 9e3f1d0805b2d919904dd9a4ff0d956314cc3cba Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 8 Jul 2017 08:20:09 +0200
Subject: debloat: procfs
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
fs/locks.c | 2 ++
fs/proc/Kconfig | 5 +++++
fs/proc/consoles.c | 3 +++
fs/proc/proc_tty.c | 11 ++++++++++-
include/net/snmp.h | 18 +++++++++++++++++-
ipc/msg.c | 3 +++
ipc/sem.c | 2 ++
ipc/shm.c | 2 ++
ipc/util.c | 3 +++
kernel/exec_domain.c | 2 ++
kernel/irq/proc.c | 9 +++++++++
kernel/time/timer_list.c | 2 ++
mm/vmalloc.c | 2 ++
mm/vmstat.c | 8 +++++---
net/8021q/vlanproc.c | 6 ++++++
net/core/net-procfs.c | 18 ++++++++++++------
net/core/sock.c | 2 ++
net/ipv4/fib_trie.c | 18 ++++++++++++------
net/ipv4/proc.c | 3 +++
net/ipv4/route.c | 3 +++
20 files changed, 105 insertions(+), 17 deletions(-)
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -2989,6 +2989,8 @@ static const struct seq_operations locks
static int __init proc_locks_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
proc_create_seq_private("locks", 0, NULL, &locks_seq_operations,
sizeof(struct locks_iterator), NULL);
return 0;
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -100,6 +100,11 @@ config PROC_CHILDREN
Say Y if you are running any user-space software which takes benefit from
this interface. For example, rkt is such a piece of software.
+config PROC_STRIPPED
+ default n
+ depends on EXPERT
+ bool "Strip non-essential /proc functionality to reduce code size"
+
config PROC_PID_ARCH_STATUS
def_bool n
depends on PROC_FS
--- a/fs/proc/consoles.c
+++ b/fs/proc/consoles.c
@@ -92,6 +92,9 @@ static const struct seq_operations conso
static int __init proc_consoles_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
+
proc_create_seq("consoles", 0, NULL, &consoles_op);
return 0;
}
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -133,7 +133,10 @@ static const struct seq_operations tty_d
void proc_tty_register_driver(struct tty_driver *driver)
{
struct proc_dir_entry *ent;
-
+
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
+
if (!driver->driver_name || driver->proc_entry ||
!driver->ops->proc_show)
return;
@@ -150,6 +153,9 @@ void proc_tty_unregister_driver(struct t
{
struct proc_dir_entry *ent;
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
+
ent = driver->proc_entry;
if (!ent)
return;
@@ -164,6 +170,9 @@ void proc_tty_unregister_driver(struct t
*/
void __init proc_tty_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
+
if (!proc_mkdir("tty", NULL))
return;
proc_mkdir("tty/ldisc", NULL); /* Preserved: it's userspace visible */
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -118,6 +118,21 @@ struct linux_xfrm_mib {
#define DECLARE_SNMP_STAT(type, name) \
extern __typeof__(type) __percpu *name
+#ifdef CONFIG_PROC_STRIPPED
+#define __SNMP_STATS_DUMMY(mib) \
+ do { (void) mib->mibs[0]; } while(0)
+
+#define __SNMP_INC_STATS(mib, field) __SNMP_STATS_DUMMY(mib)
+#define SNMP_INC_STATS_ATOMIC_LONG(mib, field) __SNMP_STATS_DUMMY(mib)
+#define SNMP_INC_STATS(mib, field) __SNMP_STATS_DUMMY(mib)
+#define SNMP_DEC_STATS(mib, field) __SNMP_STATS_DUMMY(mib)
+#define __SNMP_ADD_STATS(mib, field, addend) __SNMP_STATS_DUMMY(mib)
+#define SNMP_ADD_STATS(mib, field, addend) __SNMP_STATS_DUMMY(mib)
+#define SNMP_UPD_PO_STATS(mib, basefield, addend) __SNMP_STATS_DUMMY(mib)
+#define __SNMP_UPD_PO_STATS(mib, basefield, addend) __SNMP_STATS_DUMMY(mib)
+
+#else
+
#define __SNMP_INC_STATS(mib, field) \
__this_cpu_inc(mib->mibs[field])
@@ -148,8 +163,9 @@ struct linux_xfrm_mib {
__this_cpu_add(ptr[basefield##OCTETS], addend); \
} while (0)
+#endif
-#if BITS_PER_LONG==32
+#if (BITS_PER_LONG==32) && !defined(CONFIG_PROC_STRIPPED)
#define __SNMP_ADD_STATS64(mib, field, addend) \
do { \
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -1317,6 +1317,9 @@ void __init msg_init(void)
{
msg_init_ns(&init_ipc_ns);
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
+
ipc_init_proc_interface("sysvipc/msg",
" key msqid perms cbytes qnum lspid lrpid uid gid cuid cgid stime rtime ctime\n",
IPC_MSG_IDS, sysvipc_msg_proc_show);
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -243,6 +243,8 @@ void sem_exit_ns(struct ipc_namespace *n
void __init sem_init(void)
{
sem_init_ns(&init_ipc_ns);
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
ipc_init_proc_interface("sysvipc/sem",
" key semid perms nsems uid gid cuid cgid otime ctime\n",
IPC_SEM_IDS, sysvipc_sem_proc_show);
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -144,6 +144,8 @@ pure_initcall(ipc_ns_init);
void __init shm_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
ipc_init_proc_interface("sysvipc/shm",
#if BITS_PER_LONG <= 32
" key shmid perms size cpid lpid nattch uid gid cuid cgid atime dtime ctime rss swap\n",
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -140,6 +140,9 @@ void __init ipc_init_proc_interface(cons
struct proc_dir_entry *pde;
struct ipc_proc_iface *iface;
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
+
iface = kmalloc(sizeof(*iface), GFP_KERNEL);
if (!iface)
return;
--- a/kernel/exec_domain.c
+++ b/kernel/exec_domain.c
@@ -29,6 +29,8 @@ static int execdomains_proc_show(struct
static int __init proc_execdomains_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
proc_create_single("execdomains", 0, NULL, execdomains_proc_show);
return 0;
}
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -341,6 +341,9 @@ void register_irq_proc(unsigned int irq,
void __maybe_unused *irqp = (void *)(unsigned long) irq;
char name [MAX_NAMELEN];
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED) && !IS_ENABLED(CONFIG_SMP))
+ return;
+
if (!root_irq_dir || (desc->irq_data.chip == &no_irq_chip))
return;
@@ -394,6 +397,9 @@ void unregister_irq_proc(unsigned int ir
{
char name [MAX_NAMELEN];
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED) && !IS_ENABLED(CONFIG_SMP))
+ return;
+
if (!root_irq_dir || !desc->dir)
return;
#ifdef CONFIG_SMP
@@ -432,6 +438,9 @@ void init_irq_proc(void)
unsigned int irq;
struct irq_desc *desc;
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED) && !IS_ENABLED(CONFIG_SMP))
+ return;
+
/* create /proc/irq */
root_irq_dir = proc_mkdir("irq", NULL);
if (!root_irq_dir)
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -370,6 +370,8 @@ static int __init init_timer_list_procfs
{
struct proc_dir_entry *pe;
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
pe = proc_create_seq_private("timer_list", 0400, NULL, &timer_list_sops,
sizeof(struct timer_list_iter), NULL);
if (!pe)
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -3552,6 +3552,8 @@ static const struct seq_operations vmall
static int __init proc_vmalloc_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
if (IS_ENABLED(CONFIG_NUMA))
proc_create_seq_private("vmallocinfo", 0400, NULL,
&vmalloc_op,
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1988,10 +1988,12 @@ void __init init_mm_internals(void)
start_shepherd_timer();
#endif
#ifdef CONFIG_PROC_FS
- proc_create_seq("buddyinfo", 0444, NULL, &fragmentation_op);
- proc_create_seq("pagetypeinfo", 0400, NULL, &pagetypeinfo_op);
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED)) {
+ proc_create_seq("buddyinfo", 0444, NULL, &fragmentation_op);
+ proc_create_seq("pagetypeinfo", 0400, NULL, &pagetypeinfo_op);
+ proc_create_seq("zoneinfo", 0444, NULL, &zoneinfo_op);
+ }
proc_create_seq("vmstat", 0444, NULL, &vmstat_op);
- proc_create_seq("zoneinfo", 0444, NULL, &zoneinfo_op);
#endif
}
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -93,6 +93,9 @@ void vlan_proc_cleanup(struct net *net)
{
struct vlan_net *vn = net_generic(net, vlan_net_id);
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return;
+
if (vn->proc_vlan_conf)
remove_proc_entry(name_conf, vn->proc_vlan_dir);
@@ -112,6 +115,9 @@ int __net_init vlan_proc_init(struct net
{
struct vlan_net *vn = net_generic(net, vlan_net_id);
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
+
vn->proc_vlan_dir = proc_net_mkdir(net, name_root, net->proc_net);
if (!vn->proc_vlan_dir)
goto err;
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -279,10 +279,12 @@ static int __net_init dev_proc_net_init(
if (!proc_create_net("dev", 0444, net->proc_net, &dev_seq_ops,
sizeof(struct seq_net_private)))
goto out;
- if (!proc_create_seq("softnet_stat", 0444, net->proc_net,
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED) &&
+ !proc_create_seq("softnet_stat", 0444, net->proc_net,
&softnet_seq_ops))
goto out_dev;
- if (!proc_create_net("ptype", 0444, net->proc_net, &ptype_seq_ops,
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED) &&
+ !proc_create_net("ptype", 0444, net->proc_net, &ptype_seq_ops,
sizeof(struct seq_net_private)))
goto out_softnet;
@@ -292,9 +294,11 @@ static int __net_init dev_proc_net_init(
out:
return rc;
out_ptype:
- remove_proc_entry("ptype", net->proc_net);
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED))
+ remove_proc_entry("ptype", net->proc_net);
out_softnet:
- remove_proc_entry("softnet_stat", net->proc_net);
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED))
+ remove_proc_entry("softnet_stat", net->proc_net);
out_dev:
remove_proc_entry("dev", net->proc_net);
goto out;
@@ -304,8 +308,10 @@ static void __net_exit dev_proc_net_exit
{
wext_proc_exit(net);
- remove_proc_entry("ptype", net->proc_net);
- remove_proc_entry("softnet_stat", net->proc_net);
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED)) {
+ remove_proc_entry("ptype", net->proc_net);
+ remove_proc_entry("softnet_stat", net->proc_net);
+ }
remove_proc_entry("dev", net->proc_net);
}
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -3606,6 +3606,8 @@ static __net_initdata struct pernet_oper
static int __init proto_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
return register_pernet_subsys(&proto_net_ops);
}
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2844,11 +2844,13 @@ static const struct seq_operations fib_r
int __net_init fib_proc_init(struct net *net)
{
- if (!proc_create_net("fib_trie", 0444, net->proc_net, &fib_trie_seq_ops,
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED) &&
+ !proc_create_net("fib_trie", 0444, net->proc_net, &fib_trie_seq_ops,
sizeof(struct fib_trie_iter)))
goto out1;
- if (!proc_create_net_single("fib_triestat", 0444, net->proc_net,
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED) &&
+ !proc_create_net_single("fib_triestat", 0444, net->proc_net,
fib_triestat_seq_show, NULL))
goto out2;
@@ -2859,17 +2861,21 @@ int __net_init fib_proc_init(struct net
return 0;
out3:
- remove_proc_entry("fib_triestat", net->proc_net);
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED))
+ remove_proc_entry("fib_triestat", net->proc_net);
out2:
- remove_proc_entry("fib_trie", net->proc_net);
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED))
+ remove_proc_entry("fib_trie", net->proc_net);
out1:
return -ENOMEM;
}
void __net_exit fib_proc_exit(struct net *net)
{
- remove_proc_entry("fib_trie", net->proc_net);
- remove_proc_entry("fib_triestat", net->proc_net);
+ if (!IS_ENABLED(CONFIG_PROC_STRIPPED)) {
+ remove_proc_entry("fib_trie", net->proc_net);
+ remove_proc_entry("fib_triestat", net->proc_net);
+ }
remove_proc_entry("route", net->proc_net);
}
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -522,5 +522,8 @@ static __net_initdata struct pernet_oper
int __init ip_misc_proc_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
+
return register_pernet_subsys(&ip_proc_ops);
}
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -408,6 +408,9 @@ static struct pernet_operations ip_rt_pr
static int __init ip_rt_proc_init(void)
{
+ if (IS_ENABLED(CONFIG_PROC_STRIPPED))
+ return 0;
+
return register_pernet_subsys(&ip_rt_proc_ops);
}

74
target/linux/generic/hack-5.4/904-debloat_dma_buf.patch Normal file
View File

@ -0,0 +1,74 @@
From e3692cb2fcd5ba1244512a0f43b8118f65f1c375 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 8 Jul 2017 08:20:43 +0200
Subject: debloat: dmabuf
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/base/Kconfig | 2 +-
drivers/dma-buf/Makefile | 10 +++++++---
drivers/dma-buf/dma-buf.c | 4 +++-
kernel/sched/core.c | 1 +
4 files changed, 12 insertions(+), 5 deletions(-)
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -179,7 +179,7 @@ config SOC_BUS
source "drivers/base/regmap/Kconfig"
config DMA_SHARED_BUFFER
- bool
+ tristate
default n
select IRQ_WORK
help
--- a/drivers/dma-buf/Makefile
+++ b/drivers/dma-buf/Makefile
@@ -1,9 +1,13 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
- dma-resv.o seqno-fence.o
-obj-$(CONFIG_SYNC_FILE) += sync_file.o
-obj-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
-obj-$(CONFIG_UDMABUF) += udmabuf.o
+obj-$(CONFIG_DMA_SHARED_BUFFER) := dma-shared-buffer.o
+
+dma-buf-objs-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
+ dma-resv.o seqno-fence.o
+dma-buf-objs-$(CONFIG_SYNC_FILE) += sync_file.o
+dma-buf-objs-$(CONFIG_SW_SYNC) += sw_sync.o sync_debug.o
+dma-buf-objs-$(CONFIG_UDMABUF) += udmabuf.o
+
+dma-shared-buffer-objs := $(dma-buf-objs-y)
dmabuf_selftests-y := \
selftest.o \
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -1298,4 +1298,5 @@ static void __exit dma_buf_deinit(void)
dma_buf_uninit_debugfs();
kern_unmount(dma_buf_mnt);
}
-__exitcall(dma_buf_deinit);
+module_exit(dma_buf_deinit);
+MODULE_LICENSE("GPL");
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2673,6 +2673,7 @@ int wake_up_state(struct task_struct *p,
{
return try_to_wake_up(p, state, 0);
}
+EXPORT_SYMBOL_GPL(wake_up_state);
/*
* Perform scheduler related setup for a newly forked process p.
--- a/fs/d_path.c
+++ b/fs/d_path.c
@@ -307,6 +307,7 @@ char *dynamic_dname(struct dentry *dentr
buffer += buflen - sz;
return memcpy(buffer, temp, sz);
}
+EXPORT_SYMBOL_GPL(dynamic_dname);
char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
{

32
target/linux/generic/hack-5.4/910-kobject_uevent.patch Normal file
View File

@ -0,0 +1,32 @@
From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 16 Jul 2017 16:56:10 +0200
Subject: lib: add uevent_next_seqnum()
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/linux/kobject.h | 5 +++++
lib/kobject_uevent.c | 37 +++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+)
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -179,6 +179,18 @@ out:
return r;
}
+u64 uevent_next_seqnum(void)
+{
+ u64 seq;
+
+ mutex_lock(&uevent_sock_mutex);
+ seq = ++uevent_seqnum;
+ mutex_unlock(&uevent_sock_mutex);
+
+ return seq;
+}
+EXPORT_SYMBOL_GPL(uevent_next_seqnum);
+
/**
* kobject_synth_uevent - send synthetic uevent with arguments
*

76
target/linux/generic/hack-5.4/911-kobject_add_broadcast_uevent.patch Normal file
View File

@ -0,0 +1,76 @@
From 0d37e6edc09c99e683dd91ca0e83bbc0df8477b3 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 16 Jul 2017 16:56:10 +0200
Subject: lib: add uevent_next_seqnum()
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
include/linux/kobject.h | 5 +++++
lib/kobject_uevent.c | 37 +++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+)
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -32,6 +32,8 @@
#define UEVENT_NUM_ENVP 32 /* number of env pointers */
#define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */
+struct sk_buff;
+
#ifdef CONFIG_UEVENT_HELPER
/* path to the userspace helper executed on an event */
extern char uevent_helper[];
@@ -245,4 +247,7 @@ int kobject_synth_uevent(struct kobject
__printf(2, 3)
int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...);
+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
+ gfp_t allocation);
+
#endif /* _KOBJECT_H_ */
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -690,6 +690,43 @@ int add_uevent_var(struct kobj_uevent_en
EXPORT_SYMBOL_GPL(add_uevent_var);
#if defined(CONFIG_NET)
+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
+ gfp_t allocation)
+{
+ struct uevent_sock *ue_sk;
+ int err = 0;
+
+ /* send netlink message */
+ mutex_lock(&uevent_sock_mutex);
+ list_for_each_entry(ue_sk, &uevent_sock_list, list) {
+ struct sock *uevent_sock = ue_sk->sk;
+ struct sk_buff *skb2;
+
+ skb2 = skb_clone(skb, allocation);
+ if (!skb2)
+ break;
+
+ err = netlink_broadcast(uevent_sock, skb2, pid, group,
+ allocation);
+ if (err)
+ break;
+ }
+ mutex_unlock(&uevent_sock_mutex);
+
+ kfree_skb(skb);
+ return err;
+}
+#else
+int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
+ gfp_t allocation)
+{
+ kfree_skb(skb);
+ return 0;
+}
+#endif
+EXPORT_SYMBOL_GPL(broadcast_uevent);
+
+#if defined(CONFIG_NET)
static int uevent_net_broadcast(struct sock *usk, struct sk_buff *skb,
struct netlink_ext_ack *extack)
{

40
target/linux/generic/hack-5.4/921-always-create-console-node-in-initramfs.patch Normal file
View File

@ -0,0 +1,40 @@
From 5d301596fdc72f6cb672f72eb3c66e7cddefb103 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 8 Jul 2017 08:26:02 +0200
Subject: initramfs: always create console node
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
usr/gen_initramfs_list.sh | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/usr/gen_initramfs_list.sh
+++ b/usr/gen_initramfs_list.sh
@@ -59,6 +59,18 @@ default_initramfs() {
EOF
}
+list_openwrt_initramfs() {
+ :
+}
+
+openwrt_initramfs() {
+ # make sure that /dev/console exists
+ cat <<-EOF >> ${output}
+ dir /dev 0755 0 0
+ nod /dev/console 0600 0 0 c 5 1
+ EOF
+}
+
filetype() {
local argv1="$1"
@@ -180,6 +192,8 @@ dir_filelist() {
if [ "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
${dep_list}print_mtime "$1"
+ ${dep_list}openwrt_initramfs
+
echo "${dirlist}" | \
while read x; do
${dep_list}parse ${x}

322
target/linux/generic/hack-5.4/952-net-conntrack-events-support-multiple-registrant.patch Normal file
View File

@ -0,0 +1,322 @@
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -72,6 +72,10 @@ struct nf_ct_event {
int report;
};
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+extern int nf_conntrack_register_notifier(struct net *net, struct notifier_block *nb);
+extern int nf_conntrack_unregister_notifier(struct net *net, struct notifier_block *nb);
+#else
struct nf_ct_event_notifier {
int (*fcn)(unsigned int events, struct nf_ct_event *item);
};
@@ -80,7 +84,7 @@ int nf_conntrack_register_notifier(struc
struct nf_ct_event_notifier *nb);
void nf_conntrack_unregister_notifier(struct net *net,
struct nf_ct_event_notifier *nb);
-
+#endif
void nf_ct_deliver_cached_events(struct nf_conn *ct);
int nf_conntrack_eventmask_report(unsigned int eventmask, struct nf_conn *ct,
u32 portid, int report);
@@ -105,12 +109,15 @@ static inline void
nf_conntrack_event_cache(enum ip_conntrack_events event, struct nf_conn *ct)
{
#ifdef CONFIG_NF_CONNTRACK_EVENTS
- struct net *net = nf_ct_net(ct);
struct nf_conntrack_ecache *e;
+#ifndef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+ struct net *net = nf_ct_net(ct);
if (!rcu_access_pointer(net->ct.nf_conntrack_event_cb))
return;
+#endif
+
e = nf_ct_ecache_find(ct);
if (e == NULL)
return;
@@ -123,31 +130,28 @@ static inline int
nf_conntrack_event_report(enum ip_conntrack_events event, struct nf_conn *ct,
u32 portid, int report)
{
-#ifdef CONFIG_NF_CONNTRACK_EVENTS
+#ifndef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
const struct net *net = nf_ct_net(ct);
if (!rcu_access_pointer(net->ct.nf_conntrack_event_cb))
return 0;
-
- return nf_conntrack_eventmask_report(1 << event, ct, portid, report);
-#else
- return 0;
#endif
+
+ return nf_conntrack_eventmask_report(1 << event, ct, portid, report);
}
static inline int
nf_conntrack_event(enum ip_conntrack_events event, struct nf_conn *ct)
{
-#ifdef CONFIG_NF_CONNTRACK_EVENTS
+#ifndef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
const struct net *net = nf_ct_net(ct);
if (!rcu_access_pointer(net->ct.nf_conntrack_event_cb))
return 0;
- return nf_conntrack_eventmask_report(1 << event, ct, 0, 0);
-#else
- return 0;
#endif
+
+ return nf_conntrack_eventmask_report(1 << event, ct, 0, 0);
}
#ifdef CONFIG_NF_CONNTRACK_EVENTS
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -112,7 +112,11 @@ struct netns_ct {
struct ct_pcpu __percpu *pcpu_lists;
struct ip_conntrack_stat __percpu *stat;
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+ struct atomic_notifier_head nf_conntrack_chain;
+#else
struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
+#endif
struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
struct nf_ip_net nf_ct_proto;
#if defined(CONFIG_NF_CONNTRACK_LABELS)
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -148,6 +148,14 @@ config NF_CONNTRACK_RTCACHE
To compile it as a module, choose M here. If unsure, say N.
The module will be called nf_conntrack_rtcache.
+config NF_CONNTRACK_CHAIN_EVENTS
+ bool "Register multiple callbacks to ct events"
+ depends on NF_CONNTRACK_EVENTS
+ help
+ Support multiple registrations.
+
+ If unsure, say `N'.
+
config NF_CONNTRACK_TIMEOUT
bool 'Connection tracking timeout'
depends on NETFILTER_ADVANCED
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -2523,6 +2523,9 @@ int nf_conntrack_init_net(struct net *ne
nf_conntrack_helper_pernet_init(net);
nf_conntrack_proto_pernet_init(net);
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+ ATOMIC_INIT_NOTIFIER_HEAD(&net->ct.nf_conntrack_chain);
+#endif
return 0;
err_expect:
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -17,6 +17,9 @@
#include <linux/stddef.h>
#include <linux/err.h>
#include <linux/percpu.h>
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+#include <linux/notifier.h>
+#endif
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/slab.h>
@@ -117,6 +120,38 @@ static void ecache_work(struct work_stru
schedule_delayed_work(&ctnet->ecache_dwork, delay);
}
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+int
+nf_conntrack_eventmask_report(unsigned int eventmask,
+ struct nf_conn *ct,
+ u32 portid,
+ int report)
+{
+ struct nf_conntrack_ecache *e;
+ struct net *net = nf_ct_net(ct);
+
+ e = nf_ct_ecache_find(ct);
+ if (e == NULL)
+ return 0;
+
+ if (nf_ct_is_confirmed(ct)) {
+ struct nf_ct_event item = {
+ .ct = ct,
+ .portid = e->portid ? e->portid : portid,
+ .report = report
+ };
+ /* This is a resent of a destroy event? If so, skip missed */
+ unsigned long missed = e->portid ? 0 : e->missed;
+
+ if (!((eventmask | missed) & e->ctmask))
+ return 0;
+
+ atomic_notifier_call_chain(&net->ct.nf_conntrack_chain, eventmask | missed, &item);
+ }
+
+ return 0;
+}
+#else
int nf_conntrack_eventmask_report(unsigned int eventmask, struct nf_conn *ct,
u32 portid, int report)
{
@@ -171,10 +206,52 @@ out_unlock:
rcu_read_unlock();
return ret;
}
+#endif
EXPORT_SYMBOL_GPL(nf_conntrack_eventmask_report);
/* deliver cached events and clear cache entry - must be called with locally
* disabled softirqs */
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+void nf_ct_deliver_cached_events(struct nf_conn *ct)
+{
+ unsigned long events, missed;
+ struct nf_conntrack_ecache *e;
+ struct nf_ct_event item;
+ struct net *net = nf_ct_net(ct);
+
+ e = nf_ct_ecache_find(ct);
+ if (e == NULL)
+ return;
+
+ events = xchg(&e->cache, 0);
+
+ if (!nf_ct_is_confirmed(ct) || nf_ct_is_dying(ct) || !events)
+ return;
+
+ /* We make a copy of the missed event cache without taking
+ * the lock, thus we may send missed events twice. However,
+ * this does not harm and it happens very rarely. */
+ missed = e->missed;
+
+ if (!((events | missed) & e->ctmask))
+ return;
+
+ item.ct = ct;
+ item.portid = 0;
+ item.report = 0;
+
+ atomic_notifier_call_chain(&net->ct.nf_conntrack_chain,
+ events | missed,
+ &item);
+
+ if (likely(!missed))
+ return;
+
+ spin_lock_bh(&ct->lock);
+ e->missed &= ~missed;
+ spin_unlock_bh(&ct->lock);
+}
+#else
void nf_ct_deliver_cached_events(struct nf_conn *ct)
{
struct net *net = nf_ct_net(ct);
@@ -225,6 +302,7 @@ void nf_ct_deliver_cached_events(struct
out_unlock:
rcu_read_unlock();
}
+#endif
EXPORT_SYMBOL_GPL(nf_ct_deliver_cached_events);
void nf_ct_expect_event_report(enum ip_conntrack_expect_events event,
@@ -257,6 +335,12 @@ out_unlock:
rcu_read_unlock();
}
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+int nf_conntrack_register_notifier(struct net *net, struct notifier_block *nb)
+{
+ return atomic_notifier_chain_register(&net->ct.nf_conntrack_chain, nb);
+}
+#else
int nf_conntrack_register_notifier(struct net *net,
struct nf_ct_event_notifier *new)
{
@@ -277,8 +361,15 @@ out_unlock:
mutex_unlock(&nf_ct_ecache_mutex);
return ret;
}
+#endif
EXPORT_SYMBOL_GPL(nf_conntrack_register_notifier);
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+int nf_conntrack_unregister_notifier(struct net *net, struct notifier_block *nb)
+{
+ return atomic_notifier_chain_unregister(&net->ct.nf_conntrack_chain, nb);
+}
+#else
void nf_conntrack_unregister_notifier(struct net *net,
struct nf_ct_event_notifier *new)
{
@@ -292,6 +383,7 @@ void nf_conntrack_unregister_notifier(st
mutex_unlock(&nf_ct_ecache_mutex);
/* synchronize_rcu() is called from ctnetlink_exit. */
}
+#endif
EXPORT_SYMBOL_GPL(nf_conntrack_unregister_notifier);
int nf_ct_expect_register_notifier(struct net *net,
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -28,6 +28,11 @@
#include <linux/netlink.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
+
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+#include <linux/notifier.h>
+#endif
+
#include <linux/slab.h>
#include <linux/siphash.h>
@@ -676,14 +681,22 @@ static size_t ctnetlink_nlmsg_size(const
;
}
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+static int ctnetlink_conntrack_event(struct notifier_block *this,
+ unsigned long events, void *ptr)
+#else
static int
ctnetlink_conntrack_event(unsigned int events, struct nf_ct_event *item)
+#endif
{
const struct nf_conntrack_zone *zone;
struct net *net;
struct nlmsghdr *nlh;
struct nfgenmsg *nfmsg;
struct nlattr *nest_parms;
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+ struct nf_ct_event *item = (struct nf_ct_event *)ptr;
+#endif
struct nf_conn *ct = item->ct;
struct sk_buff *skb;
unsigned int type;
@@ -3502,9 +3515,15 @@ static int ctnetlink_stat_exp_cpu(struct
}
#ifdef CONFIG_NF_CONNTRACK_EVENTS
+#ifdef CONFIG_NF_CONNTRACK_CHAIN_EVENTS
+static struct notifier_block ctnl_notifier = {
+ .notifier_call = ctnetlink_conntrack_event,
+};
+#else
static struct nf_ct_event_notifier ctnl_notifier = {
.fcn = ctnetlink_conntrack_event,
};
+#endif
static struct nf_exp_event_notifier ctnl_notifier_exp = {
.fcn = ctnetlink_expect_event,

11
target/linux/generic/hack-5.4/999-thermal-tristate.patch Normal file
View File

@ -0,0 +1,11 @@
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -4,7 +4,7 @@
#
menuconfig THERMAL
- bool "Generic Thermal sysfs driver"
+ tristate "Generic Thermal sysfs driver"
help
Generic Thermal Sysfs driver offers a generic mechanism for
thermal management. Usually it's made up of one or more thermal

26
target/linux/generic/pending-5.4/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch Normal file
View File

@ -0,0 +1,26 @@
From d9c8bc8c1408f3e8529db6e4e04017b4c579c342 Mon Sep 17 00:00:00 2001
From: Pawel Dembicki <paweldembicki@gmail.com>
Date: Sun, 18 Feb 2018 17:08:04 +0100
Subject: [PATCH] w1: gpio: fix problem with platfom data in w1-gpio
In devices, where fdt is used, is impossible to apply platform data
without proper fdt node.
This patch allow to use platform data in devices with fdt.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
---
drivers/w1/masters/w1-gpio.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -76,7 +76,7 @@ static int w1_gpio_probe(struct platform
enum gpiod_flags gflags = GPIOD_OUT_LOW_OPEN_DRAIN;
int err;
- if (of_have_populated_dt()) {
+ if (of_have_populated_dt() && !dev_get_platdata(&pdev->dev)) {
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;

57
target/linux/generic/pending-5.4/102-MIPS-only-process-negative-stack-offsets-on-stack-tr.patch Normal file
View File

@ -0,0 +1,57 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 18 Apr 2018 10:50:05 +0200
Subject: [PATCH] MIPS: only process negative stack offsets on stack traces
Fixes endless back traces in cases where the compiler emits a stack
pointer increase in a branch delay slot (probably for some form of
function return).
[ 3.475442] BUG: MAX_STACK_TRACE_ENTRIES too low!
[ 3.480070] turning off the locking correctness validator.
[ 3.485521] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.34 #0
[ 3.491475] Stack : 00000000 00000000 00000000 00000000 80e0fce2 00000034 00000000 00000000
[ 3.499764] 87c3838c 80696377 8061047c 00000000 00000001 00000001 87c2d850 6534689f
[ 3.508059] 00000000 00000000 80e10000 00000000 00000000 000000cf 0000000f 00000000
[ 3.516353] 00000000 806a0000 00076891 00000000 00000000 00000000 ffffffff 00000000
[ 3.524648] 806c0000 00000004 80e10000 806a0000 00000003 80690000 00000000 80700000
[ 3.532942] ...
[ 3.535362] Call Trace:
[ 3.537818] [<80010a48>] show_stack+0x58/0x100
[ 3.542207] [<804c2f78>] dump_stack+0xe8/0x170
[ 3.546613] [<80079f90>] save_trace+0xf0/0x110
[ 3.551010] [<8007b1ec>] mark_lock+0x33c/0x78c
[ 3.555413] [<8007bf48>] __lock_acquire+0x2ac/0x1a08
[ 3.560337] [<8007de60>] lock_acquire+0x64/0x8c
[ 3.564846] [<804e1570>] _raw_spin_lock_irqsave+0x54/0x78
[ 3.570186] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.574770] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.579257] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.583839] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.588329] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.592911] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.597401] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.601983] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.606473] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.611055] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.615545] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.620125] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.624619] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.629197] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.633691] [<801b618c>] kernfs_notify+0x94/0xac
[ 3.638269] [<801b7b10>] sysfs_notify+0x74/0xa0
[ 3.642763] [<801b618c>] kernfs_notify+0x94/0xac
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -365,6 +365,8 @@ static inline int is_sp_move_ins(union m
if (ip->i_format.opcode == addiu_op ||
ip->i_format.opcode == daddiu_op) {
+ if (ip->i_format.simmediate > 0)
+ return 0;
*frame_size = -ip->i_format.simmediate;
return 1;
}

79
target/linux/generic/pending-5.4/110-ehci_hcd_ignore_oc.patch Normal file
View File

@ -0,0 +1,79 @@
From: Florian Fainelli <florian@openwrt.org>
Subject: USB: EHCI: add ignore_oc flag to disable overcurrent checking
This patch adds an ignore_oc flag which can be set by EHCI controller
not supporting or wanting to disable overcurrent checking. The EHCI
platform data in include/linux/usb/ehci_pdriver.h is also augmented to
take advantage of this new flag.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
drivers/usb/host/ehci-hcd.c | 2 +-
drivers/usb/host/ehci-hub.c | 4 ++--
drivers/usb/host/ehci-platform.c | 1 +
drivers/usb/host/ehci.h | 1 +
include/linux/usb/ehci_pdriver.h | 1 +
5 files changed, 6 insertions(+), 3 deletions(-)
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -638,7 +638,7 @@ static int ehci_run (struct usb_hcd *hcd
"USB %x.%x started, EHCI %x.%02x%s\n",
((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f),
temp >> 8, temp & 0xff,
- ignore_oc ? ", overcurrent ignored" : "");
+ (ignore_oc || ehci->ignore_oc) ? ", overcurrent ignored" : "");
ehci_writel(ehci, INTR_MASK,
&ehci->regs->intr_enable); /* Turn On Interrupts */
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -641,7 +641,7 @@ ehci_hub_status_data (struct usb_hcd *hc
* always set, seem to clear PORT_OCC and PORT_CSC when writing to
* PORT_POWER; that's surprising, but maybe within-spec.
*/
- if (!ignore_oc)
+ if (!ignore_oc && !ehci->ignore_oc)
mask = PORT_CSC | PORT_PEC | PORT_OCC;
else
mask = PORT_CSC | PORT_PEC;
@@ -1011,7 +1011,7 @@ int ehci_hub_control(
if (temp & PORT_PEC)
status |= USB_PORT_STAT_C_ENABLE << 16;
- if ((temp & PORT_OCC) && !ignore_oc){
+ if ((temp & PORT_OCC) && (!ignore_oc && !ehci->ignore_oc)){
status |= USB_PORT_STAT_C_OVERCURRENT << 16;
/*
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -206,6 +206,8 @@ static int ehci_platform_probe(struct pl
hcd->has_tt = 1;
if (pdata->reset_on_resume)
priv->reset_on_resume = true;
+ if (pdata->ignore_oc)
+ ehci->ignore_oc = 1;
#ifndef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO
if (ehci->big_endian_mmio) {
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -218,6 +218,7 @@ struct ehci_hcd { /* one per controlle
unsigned frame_index_bug:1; /* MosChip (AKA NetMos) */
unsigned need_oc_pp_cycle:1; /* MPC834X port power */
unsigned imx28_write_fix:1; /* For Freescale i.MX28 */
+ unsigned ignore_oc:1;
/* required for usb32 quirk */
#define OHCI_CTRL_HCFS (3 << 6)
--- a/include/linux/usb/ehci_pdriver.h
+++ b/include/linux/usb/ehci_pdriver.h
@@ -50,6 +50,7 @@ struct usb_ehci_pdata {
unsigned no_io_watchdog:1;
unsigned reset_on_resume:1;
unsigned dma_mask_64:1;
+ unsigned ignore_oc:1;
/* Turn on all power and clocks */
int (*power_on)(struct platform_device *pdev);

82
target/linux/generic/pending-5.4/120-Fix-alloc_node_mem_map-with-ARCH_PFN_OFFSET-calcu.patch Normal file
View File

@ -0,0 +1,82 @@
From: Tobias Wolf <dev-NTEO@vplace.de>
Subject: mm: Fix alloc_node_mem_map with ARCH_PFN_OFFSET calculation
An rt288x (ralink) based router (Belkin F5D8235 v1) does not boot with any
kernel beyond version 4.3 resulting in:
BUG: Bad page state in process swapper pfn:086ac
bisect resulted in:
a1c34a3bf00af2cede839879502e12dc68491ad5 is the first bad commit
commit a1c34a3bf00af2cede839879502e12dc68491ad5
Author: Laura Abbott <laura@labbott.name>
Date: Thu Nov 5 18:48:46 2015 -0800
mm: Don't offset memmap for flatmem
Srinivas Kandagatla reported bad page messages when trying to remove the
bottom 2MB on an ARM based IFC6410 board
BUG: Bad page state in process swapper pfn:fffa8
page:ef7fb500 count:0 mapcount:0 mapping: (null) index:0x0
flags: 0x96640253(locked|error|dirty|active|arch_1|reclaim|mlocked)
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
bad because of flags:
flags: 0x200041(locked|active|mlocked)
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 3.19.0-rc3-00007-g412f9ba-dirty
#816
Hardware name: Qualcomm (Flattened Device Tree)
unwind_backtrace
show_stack
dump_stack
bad_page
free_pages_prepare
free_hot_cold_page
__free_pages
free_highmem_page
mem_init
start_kernel
Disabling lock debugging due to kernel taint
[...]
:040000 040000 2de013c372345fd471cd58f0553c9b38b0ef1cc4
0a8156f848733dfa21e16c196dfb6c0a76290709 M mm
This fix for ARM does not account ARCH_PFN_OFFSET for mem_map as later used by
page_to_pfn anymore.
The following output was generated with two hacked in printk statements:
printk("before %p vs. %p or %p\n", mem_map, mem_map - offset, mem_map -
(pgdat->node_start_pfn - ARCH_PFN_OFFSET));
if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
mem_map -= offset + (pgdat->node_start_pfn - ARCH_PFN_OFFSET);
printk("after %p\n", mem_map);
Output:
[ 0.000000] before 8861b280 vs. 8861b280 or 8851b280
[ 0.000000] after 8851b280
As seen in the first line mem_map with subtraction of offset does not equal the
mem_map after subtraction of ARCH_PFN_OFFSET.
After adding the offset of ARCH_PFN_OFFSET as well to mem_map as the
previously calculated offset is zero for the named platform it is able to boot
4.4 and 4.9-rc7 again.
Signed-off-by: Tobias Wolf <dev-NTEO@vplace.de>
---
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6851,7 +6851,7 @@ static void __ref alloc_node_mem_map(str
mem_map = NODE_DATA(0)->node_mem_map;
#if defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP) || defined(CONFIG_FLATMEM)
if (page_to_pfn(mem_map) != pgdat->node_start_pfn)
- mem_map -= offset;
+ mem_map -= offset + (pgdat->node_start_pfn - ARCH_PFN_OFFSET);
#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
}
#endif

18
target/linux/generic/pending-5.4/130-add-linux-spidev-compatible-si3210.patch Normal file
View File

@ -0,0 +1,18 @@
From: Giuseppe Lippolis <giu.lippolis@gmail.com>
Subject: Add the linux,spidev compatible in spidev Several device in ramips have this binding in the dts
Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
---
drivers/spi/spidev.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -673,6 +673,7 @@ static const struct of_device_id spidev_
{ .compatible = "lwn,bk4" },
{ .compatible = "dh,dhcom-board" },
{ .compatible = "menlo,m53cpld" },
+ { .compatible = "siliconlabs,si3210" },
{},
};
MODULE_DEVICE_TABLE(of, spidev_dt_ids);

62
target/linux/generic/pending-5.4/140-jffs2-use-.rename2-and-add-RENAME_WHITEOUT-support.patch Normal file
View File

@ -0,0 +1,62 @@
From: Felix Fietkau <nbd@nbd.name>
Subject: jffs2: use .rename2 and add RENAME_WHITEOUT support
It is required for renames on overlayfs
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -752,6 +752,24 @@ static int jffs2_mknod (struct inode *di
return ret;
}
+static int jffs2_whiteout (struct inode *old_dir, struct dentry *old_dentry)
+{
+ struct dentry *wh;
+ int err;
+
+ wh = d_alloc(old_dentry->d_parent, &old_dentry->d_name);
+ if (!wh)
+ return -ENOMEM;
+
+ err = jffs2_mknod(old_dir, wh, S_IFCHR | WHITEOUT_MODE,
+ WHITEOUT_DEV);
+ if (err)
+ return err;
+
+ d_rehash(wh);
+ return 0;
+}
+
static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
struct inode *new_dir_i, struct dentry *new_dentry,
unsigned int flags)
@@ -762,7 +780,7 @@ static int jffs2_rename (struct inode *o
uint8_t type;
uint32_t now;
- if (flags & ~RENAME_NOREPLACE)
+ if (flags & ~(RENAME_NOREPLACE|RENAME_WHITEOUT))
return -EINVAL;
/* The VFS will check for us and prevent trying to rename a
@@ -828,9 +846,14 @@ static int jffs2_rename (struct inode *o
if (d_is_dir(old_dentry) && !victim_f)
inc_nlink(new_dir_i);
- /* Unlink the original */
- ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
- old_dentry->d_name.name, old_dentry->d_name.len, NULL, now);
+ if (flags & RENAME_WHITEOUT)
+ /* Replace with whiteout */
+ ret = jffs2_whiteout(old_dir_i, old_dentry);
+ else
+ /* Unlink the original */
+ ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
+ old_dentry->d_name.name,
+ old_dentry->d_name.len, NULL, now);
/* We don't touch inode->i_nlink */

73
target/linux/generic/pending-5.4/141-jffs2-add-RENAME_EXCHANGE-support.patch Normal file
View File

@ -0,0 +1,73 @@
From: Felix Fietkau <nbd@nbd.name>
Subject: jffs2: add RENAME_EXCHANGE support
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -777,18 +777,31 @@ static int jffs2_rename (struct inode *o
int ret;
struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb);
struct jffs2_inode_info *victim_f = NULL;
+ struct inode *fst_inode = d_inode(old_dentry);
+ struct inode *snd_inode = d_inode(new_dentry);
uint8_t type;
uint32_t now;
- if (flags & ~(RENAME_NOREPLACE|RENAME_WHITEOUT))
+ if (flags & ~(RENAME_NOREPLACE|RENAME_WHITEOUT|RENAME_EXCHANGE))
return -EINVAL;
+ if ((flags & RENAME_EXCHANGE) && (old_dir_i != new_dir_i)) {
+ if (S_ISDIR(fst_inode->i_mode) && !S_ISDIR(snd_inode->i_mode)) {
+ inc_nlink(new_dir_i);
+ drop_nlink(old_dir_i);
+ }
+ else if (!S_ISDIR(fst_inode->i_mode) && S_ISDIR(snd_inode->i_mode)) {
+ drop_nlink(new_dir_i);
+ inc_nlink(old_dir_i);
+ }
+ }
+
/* The VFS will check for us and prevent trying to rename a
* file over a directory and vice versa, but if it's a directory,
* the VFS can't check whether the victim is empty. The filesystem
* needs to do that for itself.
*/
- if (d_really_is_positive(new_dentry)) {
+ if (d_really_is_positive(new_dentry) && !(flags & RENAME_EXCHANGE)) {
victim_f = JFFS2_INODE_INFO(d_inode(new_dentry));
if (d_is_dir(new_dentry)) {
struct jffs2_full_dirent *fd;
@@ -823,7 +836,7 @@ static int jffs2_rename (struct inode *o
if (ret)
return ret;
- if (victim_f) {
+ if (victim_f && !(flags & RENAME_EXCHANGE)) {
/* There was a victim. Kill it off nicely */
if (d_is_dir(new_dentry))
clear_nlink(d_inode(new_dentry));
@@ -849,6 +862,12 @@ static int jffs2_rename (struct inode *o
if (flags & RENAME_WHITEOUT)
/* Replace with whiteout */
ret = jffs2_whiteout(old_dir_i, old_dentry);
+ else if (flags & RENAME_EXCHANGE)
+ /* Replace the original */
+ ret = jffs2_do_link(c, JFFS2_INODE_INFO(old_dir_i),
+ d_inode(new_dentry)->i_ino, type,
+ old_dentry->d_name.name, old_dentry->d_name.len,
+ now);
else
/* Unlink the original */
ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
@@ -880,7 +899,7 @@ static int jffs2_rename (struct inode *o
return ret;
}
- if (d_is_dir(old_dentry))
+ if (d_is_dir(old_dentry) && !(flags & RENAME_EXCHANGE))
drop_nlink(old_dir_i);
new_dir_i->i_mtime = new_dir_i->i_ctime = old_dir_i->i_mtime = old_dir_i->i_ctime = ITIME(now);

45
target/linux/generic/pending-5.4/150-bridge_allow_receiption_on_disabled_port.patch Normal file
View File

@ -0,0 +1,45 @@
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: bridge: allow receiption on disabled port
When an ethernet device is enslaved to a bridge, and the bridge STP
detects loss of carrier (or operational state down), then normally
packet receiption is blocked.
This breaks control applications like WPA which maybe expecting to
receive packets to negotiate to bring link up. The bridge needs to
block forwarding packets from these disabled ports, but there is no
hard requirement to not allow local packet delivery.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -190,6 +190,9 @@ static void __br_handle_local_finish(str
/* note: already called with rcu_read_lock */
static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
+ struct net_bridge_port *p = br_port_get_rcu(skb->dev);
+
+ if (p->state != BR_STATE_DISABLED)
__br_handle_local_finish(skb);
/* return 1 to signal the okfn() was called so it's ok to use the skb */
@@ -340,6 +343,17 @@ rx_handler_result_t br_handle_frame(stru
forward:
switch (p->state) {
+ case BR_STATE_DISABLED:
+ if (ether_addr_equal(p->br->dev->dev_addr, dest))
+ skb->pkt_type = PACKET_HOST;
+
+ if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING,
+ dev_net(skb->dev), NULL, skb, skb->dev, NULL,
+ br_handle_local_finish) == 1) {
+ return RX_HANDLER_PASS;
+ }
+ break;
+
case BR_STATE_FORWARDING:
case BR_STATE_LEARNING:
if (ether_addr_equal(p->br->dev->dev_addr, dest))

63
target/linux/generic/pending-5.4/180-net-phy-at803x-add-support-for-AT8032.patch Normal file
View File

@ -0,0 +1,63 @@
From: Felix Fietkau <nbd@nbd.name>
Subject: net: phy: at803x: add support for AT8032
Like AT8030, this PHY needs the GPIO reset workaround
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -64,8 +64,10 @@
#define ATH8030_PHY_ID 0x004dd076
#define ATH8031_PHY_ID 0x004dd074
+#define ATH8032_PHY_ID 0x004dd023
#define ATH8035_PHY_ID 0x004dd072
#define AT803X_PHY_ID_MASK 0xffffffef
+#define AT8032_PHY_ID_MASK 0xffffffff
MODULE_DESCRIPTION("Atheros 803x PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
@@ -314,7 +316,7 @@ static int at803x_config_intr(struct phy
static void at803x_link_change_notify(struct phy_device *phydev)
{
/*
- * Conduct a hardware reset for AT8030 every time a link loss is
+ * Conduct a hardware reset for AT8030/2 every time a link loss is
* signalled. This is necessary to circumvent a hardware bug that
* occurs when the cable is unplugged while TX packets are pending
* in the FIFO. In such cases, the FIFO enters an error mode it
@@ -471,6 +473,24 @@ static struct phy_driver at803x_driver[]
.aneg_done = at803x_aneg_done,
.ack_interrupt = &at803x_ack_interrupt,
.config_intr = &at803x_config_intr,
+}, {
+ /* ATHEROS 8032 */
+ .phy_id = ATH8032_PHY_ID,
+ .name = "Atheros 8032 ethernet",
+ .phy_id_mask = AT8032_PHY_ID_MASK,
+ .probe = at803x_probe,
+ .config_init = at803x_config_init,
+ .link_change_notify = at803x_link_change_notify,
+ .set_wol = at803x_set_wol,
+ .get_wol = at803x_get_wol,
+ .suspend = at803x_suspend,
+ .resume = at803x_resume,
+ /* PHY_BASIC_FEATURES */
+ .read_status = at803x_read_status,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = at803x_ack_interrupt,
+ .config_intr = at803x_config_intr,
} };
module_phy_driver(at803x_driver);
@@ -478,6 +498,7 @@ module_phy_driver(at803x_driver);
static struct mdio_device_id __maybe_unused atheros_tbl[] = {
{ ATH8030_PHY_ID, AT803X_PHY_ID_MASK },
{ ATH8031_PHY_ID, AT803X_PHY_ID_MASK },
+ { ATH8032_PHY_ID, AT8032_PHY_ID_MASK },
{ ATH8035_PHY_ID, AT803X_PHY_ID_MASK },
{ }
};

31
target/linux/generic/pending-5.4/201-extra_optimization.patch Normal file
View File

@ -0,0 +1,31 @@
From: Felix Fietkau <nbd@nbd.name>
Subject: Upgrade to Linux 2.6.19
- Includes large parts of the patch from #1021 by dpalffy
- Includes RB532 NAND driver changes by n0-1
[john@phrozen.org: feix will add this to his upstream queue]
lede-commit: bff468813f78f81e36ebb2a3f4354de7365e640f
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
Makefile | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/Makefile
+++ b/Makefile
@@ -701,11 +701,11 @@ KBUILD_CFLAGS += $(call cc-disable-warni
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE
-KBUILD_CFLAGS += -O2
+KBUILD_CFLAGS += -O2 $(EXTRA_OPTIMIZATION)
else ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3
-KBUILD_CFLAGS += -O3
+KBUILD_CFLAGS += -O3 $(EXTRA_OPTIMIZATION)
else ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-KBUILD_CFLAGS += -Os
+KBUILD_CFLAGS += -Os -fno-reorder-blocks -fno-tree-ch $(EXTRA_OPTIMIZATION)
endif
ifdef CONFIG_CC_DISABLE_WARN_MAYBE_UNINITIALIZED

119
target/linux/generic/pending-5.4/203-kallsyms_uncompressed.patch Normal file
View File

@ -0,0 +1,119 @@
From: Felix Fietkau <nbd@nbd.name>
Subject: kernel: add a config option for keeping the kallsyms table uncompressed, saving ~9kb kernel size after lzma on ar71xx
[john@phrozen.org: added to my upstream queue 30.12.2016]
lede-commit: e0e3509b5ce2ccf93d4d67ea907613f5f7ec2eed
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
init/Kconfig | 11 +++++++++++
kernel/kallsyms.c | 8 ++++++++
scripts/kallsyms.c | 12 ++++++++++++
scripts/link-vmlinux.sh | 4 ++++
4 files changed, 35 insertions(+)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1295,6 +1295,17 @@ config SYSCTL_ARCH_UNALIGN_ALLOW
the unaligned access emulation.
see arch/parisc/kernel/unaligned.c for reference
+config KALLSYMS_UNCOMPRESSED
+ bool "Keep kallsyms uncompressed"
+ depends on KALLSYMS
+ help
+ Normally kallsyms contains compressed symbols (using a token table),
+ reducing the uncompressed kernel image size. Keeping the symbol table
+ uncompressed significantly improves the size of this part in compressed
+ kernel images.
+
+ Say N unless you need compressed kernel images to be small.
+
config HAVE_PCSPKR_PLATFORM
bool
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -75,6 +75,11 @@ static unsigned int kallsyms_expand_symb
* For every byte on the compressed symbol data, copy the table
* entry for that byte.
*/
+#ifdef CONFIG_KALLSYMS_UNCOMPRESSED
+ memcpy(result, data + 1, len - 1);
+ result += len - 1;
+ len = 0;
+#endif
while (len) {
tptr = &kallsyms_token_table[kallsyms_token_index[*data]];
data++;
@@ -107,6 +112,9 @@ tail:
*/
static char kallsyms_get_symbol_type(unsigned int off)
{
+#ifdef CONFIG_KALLSYMS_UNCOMPRESSED
+ return kallsyms_names[off + 1];
+#endif
/*
* Get just the first code, look it up in the token table,
* and return the first char from this token.
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -59,6 +59,7 @@ static struct addr_range percpu_range =
static struct sym_entry *table;
static unsigned int table_size, table_cnt;
static int all_symbols = 0;
+static int uncompressed = 0;
static int absolute_percpu = 0;
static int base_relative = 0;
@@ -440,6 +441,9 @@ static void write_src(void)
free(markers);
+ if (uncompressed)
+ return;
+
output_label("kallsyms_token_table");
off = 0;
for (i = 0; i < 256; i++) {
@@ -500,6 +504,9 @@ static void *find_token(unsigned char *s
{
int i;
+ if (uncompressed)
+ return NULL;
+
for (i = 0; i < len - 1; i++) {
if (str[i] == token[0] && str[i+1] == token[1])
return &str[i];
@@ -572,6 +579,9 @@ static void optimize_result(void)
{
int i, best;
+ if (uncompressed)
+ return;
+
/* using the '\0' symbol last allows compress_symbols to use standard
* fast string functions */
for (i = 255; i >= 0; i--) {
@@ -751,6 +761,8 @@ int main(int argc, char **argv)
absolute_percpu = 1;
else if (strcmp(argv[i], "--base-relative") == 0)
base_relative = 1;
+ else if (strcmp(argv[i], "--uncompressed") == 0)
+ uncompressed = 1;
else
usage();
}
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -152,6 +152,10 @@ kallsyms()
kallsymopt="${kallsymopt} --base-relative"
fi
+ if [ -n "${CONFIG_KALLSYMS_UNCOMPRESSED}" ]; then
+ kallsymopt="${kallsymopt} --uncompressed"
+ fi
+
local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL} \
${NOSTDINC_FLAGS} ${LINUXINCLUDE} ${KBUILD_CPPFLAGS}"

41
target/linux/generic/pending-5.4/205-backtrace_module_info.patch Normal file
View File

@ -0,0 +1,41 @@
From: Felix Fietkau <nbd@nbd.name>
Subject: kernel: when KALLSYMS is disabled, print module address + size for matching backtrace entries
[john@phrozen.org: felix will add this to his upstream queue]
lede-commit 53827cdc824556cda910b23ce5030c363b8f1461
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
lib/vsprintf.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -907,8 +907,10 @@ char *symbol_string(char *buf, char *end
struct printf_spec spec, const char *fmt)
{
unsigned long value;
-#ifdef CONFIG_KALLSYMS
char sym[KSYM_SYMBOL_LEN];
+#ifndef CONFIG_KALLSYMS
+ struct module *mod;
+ int len;
#endif
if (fmt[1] == 'R')
@@ -925,8 +927,14 @@ char *symbol_string(char *buf, char *end
return string_nocheck(buf, end, sym, spec);
#else
- return special_hex_number(buf, end, value, sizeof(void *));
+ len = snprintf(sym, sizeof(sym), "0x%lx", value);
+ mod = __module_address(value);
+ if (mod)
+ snprintf(sym + len, sizeof(sym) - len, " [%s@%p+0x%x]",
+ mod->name, mod->core_layout.base,
+ mod->core_layout.size);
#endif
+ return string(buf, end, sym, spec);
}
static const struct printf_spec default_str_spec = {

47
target/linux/generic/pending-5.4/240-remove-unsane-filenames-from-deps_initramfs-list.patch Normal file
View File

@ -0,0 +1,47 @@
From: Gabor Juhos <juhosg@openwrt.org>
Subject: usr: sanitize deps_initramfs list
If any filename in the intramfs dependency
list contains a colon, that causes a kernel
build error like this:
/devel/openwrt/build_dir/linux-ar71xx_generic/linux-3.6.6/usr/Makefile:58: *** multiple target patterns. Stop.
make[5]: *** [usr] Error 2
Fix it by removing such filenames from the
deps_initramfs list.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
usr/Makefile | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/usr/Makefile
+++ b/usr/Makefile
@@ -42,21 +42,23 @@ ifneq ($(wildcard $(obj)/$(datafile_d_y)
include $(obj)/$(datafile_d_y)
endif
+deps_initramfs_sane := $(foreach v,$(deps_initramfs),$(if $(findstring :,$(v)),,$(v)))
+
quiet_cmd_initfs = GEN $@
cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input)
targets := $(datafile_y)
# do not try to update files included in initramfs
-$(deps_initramfs): ;
+$(deps_initramfs_sane): ;
-$(deps_initramfs): klibcdirs
+$(deps_initramfs_sane): klibcdirs
# We rebuild initramfs_data.cpio if:
# 1) Any included file is newer than initramfs_data.cpio
# 2) There are changes in which files are included (added or deleted)
# 3) If gen_init_cpio are newer than initramfs_data.cpio
# 4) Arguments to gen_initramfs.sh changes
-$(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
+$(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs_sane) klibcdirs
$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/$(datafile_d_y)
$(call if_changed,initfs)

20
target/linux/generic/pending-5.4/261-enable_wilink_platform_without_drivers.patch Normal file
View File

@ -0,0 +1,20 @@
From: Imre Kaloz <kaloz@openwrt.org>
Subject: [PATCH] hack: net: wireless: make the wl12xx glue code available with
compat-wireless, too
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
drivers/net/wireless/ti/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/ti/Kconfig
+++ b/drivers/net/wireless/ti/Kconfig
@@ -20,7 +20,7 @@ source "drivers/net/wireless/ti/wlcore/K
config WILINK_PLATFORM_DATA
bool "TI WiLink platform data"
- depends on WLCORE_SDIO || WL1251_SDIO
+ depends on WLCORE_SDIO || WL1251_SDIO || ARCH_OMAP2PLUS
default y
---help---
Small platform data bit needed to pass data to the sdio modules.

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