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Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
This commit is contained in:
Tianling Shen 2022-11-05 16:56:57 +08:00
commit 5dd4ee6770
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GPG Key ID: 6850B6345C862176
14 changed files with 538 additions and 8 deletions
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1
target/linux/ath79/config-5.4
View File

@ -175,6 +175,7 @@ CONFIG_MTD_CMDLINE_PARTS=y
# CONFIG_MTD_MAP_BANK_WIDTH_4 is not set
# CONFIG_MTD_NAND_RB91X is not set
CONFIG_MTD_PARSER_CYBERTAN=y
# CONFIG_MTD_PARSER_TPLINK_SAFELOADER is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_SPLIT_ELF_FW=y

2
target/linux/ath79/patches-5.4/404-mtd-cybertan-trx-parser.patch
View File

@ -7,7 +7,7 @@
+obj-$(CONFIG_MTD_PARSER_CYBERTAN) += parser_cybertan.o
obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
obj-$(CONFIG_MTD_PARSER_TPLINK_SAFELOADER) += tplink_safeloader.o
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -102,6 +102,14 @@ config MTD_OF_PARTS_LINKSYS_NS

34
target/linux/bcm4908/patches-5.4/077-v5.17-net-broadcom-bcm4908enet-remove-redundant-variable-b.patch Normal file
View File

@ -0,0 +1,34 @@
From 62a3106697f3c6f9af64a2cd0f9ff58552010dc8 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.i.king@gmail.com>
Date: Wed, 22 Dec 2021 00:39:37 +0000
Subject: [PATCH] net: broadcom: bcm4908enet: remove redundant variable bytes
The variable bytes is being used to summate slot lengths,
however the value is never used afterwards. The summation
is redundant so remove variable bytes.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20211222003937.727325-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/broadcom/bcm4908_enet.c | 2 --
1 file changed, 2 deletions(-)
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -634,7 +634,6 @@ static int bcm4908_enet_poll_tx(struct n
struct bcm4908_enet_dma_ring_bd *buf_desc;
struct bcm4908_enet_dma_ring_slot *slot;
struct device *dev = enet->dev;
- unsigned int bytes = 0;
int handled = 0;
while (handled < weight && tx_ring->read_idx != tx_ring->write_idx) {
@@ -645,7 +644,6 @@ static int bcm4908_enet_poll_tx(struct n
dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE);
dev_kfree_skb(slot->skb);
- bytes += slot->len;
if (++tx_ring->read_idx == tx_ring->length)
tx_ring->read_idx = 0;

4
target/linux/bcm4908/patches-5.4/078-v6.1-net-broadcom-bcm4908_enet-handle-EPROBE_DEFER-when-g.patch → target/linux/bcm4908/patches-5.4/078-v6.1-0001-net-broadcom-bcm4908_enet-handle-EPROBE_DEFER-when-g.patch
View File

@ -20,7 +20,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -716,10 +716,14 @@ static int bcm4908_enet_probe(struct pla
@@ -714,10 +714,14 @@ static int bcm4908_enet_probe(struct pla
SET_NETDEV_DEV(netdev, &pdev->dev);
mac = of_get_mac_address(dev->of_node);
@ -37,7 +37,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
netdev->netdev_ops = &bcm4908_enet_netdev_ops;
netdev->min_mtu = ETH_ZLEN;
netdev->mtu = ETH_DATA_LEN;
@@ -728,14 +732,17 @@ static int bcm4908_enet_probe(struct pla
@@ -726,14 +730,17 @@ static int bcm4908_enet_probe(struct pla
netif_napi_add(netdev, &enet->rx_ring.napi, bcm4908_enet_poll_rx, NAPI_POLL_WEIGHT);
err = register_netdev(netdev);

65
target/linux/bcm4908/patches-5.4/078-v6.1-0002-net-broadcom-bcm4908_enet-update-TX-stats-after-actu.patch Normal file
View File

@ -0,0 +1,65 @@
From ef3556ee16c68735ec69bd08df41d1cd83b14ad3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Thu, 27 Oct 2022 13:24:30 +0200
Subject: [PATCH] net: broadcom: bcm4908_enet: update TX stats after actual
transmission
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Queueing packets doesn't guarantee their transmission. Update TX stats
after hardware confirms consuming submitted data.
This also fixes a possible race and NULL dereference.
bcm4908_enet_start_xmit() could try to access skb after freeing it in
the bcm4908_enet_poll_tx().
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: 4feffeadbcb2e ("net: broadcom: bcm4908enet: add BCM4908 controller driver")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221027112430.8696-1-zajec5@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/broadcom/bcm4908_enet.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -560,8 +560,6 @@ static int bcm4908_enet_start_xmit(struc
if (++ring->write_idx == ring->length - 1)
ring->write_idx = 0;
- enet->netdev->stats.tx_bytes += skb->len;
- enet->netdev->stats.tx_packets++;
return NETDEV_TX_OK;
}
@@ -634,6 +632,7 @@ static int bcm4908_enet_poll_tx(struct n
struct bcm4908_enet_dma_ring_bd *buf_desc;
struct bcm4908_enet_dma_ring_slot *slot;
struct device *dev = enet->dev;
+ unsigned int bytes = 0;
int handled = 0;
while (handled < weight && tx_ring->read_idx != tx_ring->write_idx) {
@@ -644,12 +643,17 @@ static int bcm4908_enet_poll_tx(struct n
dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_TO_DEVICE);
dev_kfree_skb(slot->skb);
- if (++tx_ring->read_idx == tx_ring->length)
- tx_ring->read_idx = 0;
handled++;
+ bytes += slot->len;
+
+ if (++tx_ring->read_idx == tx_ring->length)
+ tx_ring->read_idx = 0;
}
+ enet->netdev->stats.tx_packets += handled;
+ enet->netdev->stats.tx_bytes += bytes;
+
if (handled < weight) {
napi_complete_done(napi, handled);
bcm4908_enet_dma_ring_intrs_on(enet, tx_ring);

152
target/linux/bcm4908/patches-5.4/079-v6.2-0001-net-broadcom-bcm4908_enet-use-build_skb.patch Normal file
View File

@ -0,0 +1,152 @@
From 3a1cc23a75abcd9cea585eb84846507363d58397 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 25 Oct 2022 15:22:45 +0200
Subject: [PATCH] net: broadcom: bcm4908_enet: use build_skb()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RX code can be more efficient with the build_skb(). Allocating actual
SKB around eth packet buffer - right before passing it up - results in
a better cache usage.
Without RPS (echo 0 > rps_cpus) BCM4908 NAT masq performance "jumps"
between two speeds: ~900 Mbps and 940 Mbps (it's a 4 CPUs SoC). This
change bumps the lower speed from 905 Mb/s to 918 Mb/s (tested using
single stream iperf 2.0.5 traffic).
There are more optimizations to consider. One obvious to try is GRO
however as BCM4908 doesn't do hw csum is may actually lower performance.
Sometimes. Some early testing:
┌─────────────────────────────────┬─────────────────────┬────────────────────┐
│ │ netif_receive_skb() │ napi_gro_receive() │
├─────────────────────────────────┼─────────────────────┼────────────────────┤
│ netdev_alloc_skb() │ 905 Mb/s │ 892 Mb/s │
│ napi_alloc_frag() + build_skb() │ 918 Mb/s │ 917 Mb/s │
└─────────────────────────────────┴─────────────────────┴────────────────────┘
Another ideas:
1. napi_build_skb()
2. skb_copy_from_linear_data() for small packets
Those need proper testing first though. That can be done later.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20221025132245.22871-1-zajec5@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
drivers/net/ethernet/broadcom/bcm4908_enet.c | 53 +++++++++++++-------
1 file changed, 36 insertions(+), 17 deletions(-)
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -36,13 +36,24 @@
#define ENET_MAX_ETH_OVERHEAD (ETH_HLEN + BRCM_MAX_TAG_LEN + VLAN_HLEN + \
ETH_FCS_LEN + 4) /* 32 */
+#define ENET_RX_SKB_BUF_SIZE (NET_SKB_PAD + NET_IP_ALIGN + \
+ ETH_HLEN + BRCM_MAX_TAG_LEN + VLAN_HLEN + \
+ ENET_MTU_MAX + ETH_FCS_LEN + 4)
+#define ENET_RX_SKB_BUF_ALLOC_SIZE (SKB_DATA_ALIGN(ENET_RX_SKB_BUF_SIZE) + \
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
+#define ENET_RX_BUF_DMA_OFFSET (NET_SKB_PAD + NET_IP_ALIGN)
+#define ENET_RX_BUF_DMA_SIZE (ENET_RX_SKB_BUF_SIZE - ENET_RX_BUF_DMA_OFFSET)
+
struct bcm4908_enet_dma_ring_bd {
__le32 ctl;
__le32 addr;
} __packed;
struct bcm4908_enet_dma_ring_slot {
- struct sk_buff *skb;
+ union {
+ void *buf; /* RX */
+ struct sk_buff *skb; /* TX */
+ };
unsigned int len;
dma_addr_t dma_addr;
};
@@ -259,22 +270,21 @@ static int bcm4908_enet_dma_alloc_rx_buf
u32 tmp;
int err;
- slot->len = ENET_MTU_MAX + ENET_MAX_ETH_OVERHEAD;
-
- slot->skb = netdev_alloc_skb(enet->netdev, slot->len);
- if (!slot->skb)
+ slot->buf = napi_alloc_frag(ENET_RX_SKB_BUF_ALLOC_SIZE);
+ if (!slot->buf)
return -ENOMEM;
- slot->dma_addr = dma_map_single(dev, slot->skb->data, slot->len, DMA_FROM_DEVICE);
+ slot->dma_addr = dma_map_single(dev, slot->buf + ENET_RX_BUF_DMA_OFFSET,
+ ENET_RX_BUF_DMA_SIZE, DMA_FROM_DEVICE);
err = dma_mapping_error(dev, slot->dma_addr);
if (err) {
dev_err(dev, "Failed to map DMA buffer: %d\n", err);
- kfree_skb(slot->skb);
- slot->skb = NULL;
+ skb_free_frag(slot->buf);
+ slot->buf = NULL;
return err;
}
- tmp = slot->len << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT;
+ tmp = ENET_RX_BUF_DMA_SIZE << DMA_CTL_LEN_DESC_BUFLENGTH_SHIFT;
tmp |= DMA_CTL_STATUS_OWN;
if (idx == enet->rx_ring.length - 1)
tmp |= DMA_CTL_STATUS_WRAP;
@@ -314,11 +324,11 @@ static void bcm4908_enet_dma_uninit(stru
for (i = rx_ring->length - 1; i >= 0; i--) {
slot = &rx_ring->slots[i];
- if (!slot->skb)
+ if (!slot->buf)
continue;
dma_unmap_single(dev, slot->dma_addr, slot->len, DMA_FROM_DEVICE);
- kfree_skb(slot->skb);
- slot->skb = NULL;
+ skb_free_frag(slot->buf);
+ slot->buf = NULL;
}
}
@@ -574,6 +584,7 @@ static int bcm4908_enet_poll_rx(struct n
while (handled < weight) {
struct bcm4908_enet_dma_ring_bd *buf_desc;
struct bcm4908_enet_dma_ring_slot slot;
+ struct sk_buff *skb;
u32 ctl;
int len;
int err;
@@ -597,16 +608,24 @@ static int bcm4908_enet_poll_rx(struct n
if (len < ETH_ZLEN ||
(ctl & (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) != (DMA_CTL_STATUS_SOP | DMA_CTL_STATUS_EOP)) {
- kfree_skb(slot.skb);
+ skb_free_frag(slot.buf);
enet->netdev->stats.rx_dropped++;
break;
}
- dma_unmap_single(dev, slot.dma_addr, slot.len, DMA_FROM_DEVICE);
+ dma_unmap_single(dev, slot.dma_addr, ENET_RX_BUF_DMA_SIZE, DMA_FROM_DEVICE);
+
+ skb = build_skb(slot.buf, ENET_RX_SKB_BUF_ALLOC_SIZE);
+ if (unlikely(!skb)) {
+ skb_free_frag(slot.buf);
+ enet->netdev->stats.rx_dropped++;
+ break;
+ }
+ skb_reserve(skb, ENET_RX_BUF_DMA_OFFSET);
+ skb_put(skb, len - ETH_FCS_LEN);
+ skb->protocol = eth_type_trans(skb, enet->netdev);
- skb_put(slot.skb, len - ETH_FCS_LEN);
- slot.skb->protocol = eth_type_trans(slot.skb, enet->netdev);
- netif_receive_skb(slot.skb);
+ netif_receive_skb(skb);
enet->netdev->stats.rx_packets++;
enet->netdev->stats.rx_bytes += len;

45
target/linux/bcm4908/patches-5.4/079-v6.2-0002-net-broadcom-bcm4908_enet-report-queued-and-transmit.patch Normal file
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@ -0,0 +1,45 @@
From 471ef777ec79baadc5cd9773d08f95f49cf5e2b1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Mon, 31 Oct 2022 11:48:56 +0100
Subject: [PATCH] net: broadcom: bcm4908_enet: report queued and transmitted
bytes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This allows BQL to operate avoiding buffer bloat and reducing latency.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20221031104856.32388-1-zajec5@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/broadcom/bcm4908_enet.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
@@ -504,6 +504,7 @@ static int bcm4908_enet_stop(struct net_
netif_carrier_off(netdev);
napi_disable(&rx_ring->napi);
napi_disable(&tx_ring->napi);
+ netdev_reset_queue(netdev);
bcm4908_enet_dma_rx_ring_disable(enet, &enet->rx_ring);
bcm4908_enet_dma_tx_ring_disable(enet, &enet->tx_ring);
@@ -563,6 +564,8 @@ static int bcm4908_enet_start_xmit(struc
if (ring->write_idx + 1 == ring->length - 1)
tmp |= DMA_CTL_STATUS_WRAP;
+ netdev_sent_queue(enet->netdev, skb->len);
+
buf_desc->addr = cpu_to_le32((uint32_t)slot->dma_addr);
buf_desc->ctl = cpu_to_le32(tmp);
@@ -670,6 +673,7 @@ static int bcm4908_enet_poll_tx(struct n
tx_ring->read_idx = 0;
}
+ netdev_completed_queue(enet->netdev, handled, bytes);
enet->netdev->stats.tx_packets += handled;
enet->netdev->stats.tx_bytes += bytes;

1
target/linux/bcm53xx/config-5.4
View File

@ -260,6 +260,7 @@ CONFIG_MTD_NAND_BRCMNAND=y
CONFIG_MTD_NAND_CORE=y
CONFIG_MTD_NAND_ECC_SW_HAMMING=y
CONFIG_MTD_OF_PARTS_LINKSYS_NS=y
CONFIG_MTD_PARSER_TPLINK_SAFELOADER=y
CONFIG_MTD_PARSER_TRX=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD_SPI_NOR=y

229
target/linux/generic/backport-5.4/420-v6.2-mtd-parsers-add-TP-Link-SafeLoader-partitions-table-.patch Normal file
View File

@ -0,0 +1,229 @@
From aec4d5f5ffd0f0092bd9dc21ea90e0bc237d4b74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Sat, 15 Oct 2022 11:29:50 +0200
Subject: [PATCH] mtd: parsers: add TP-Link SafeLoader partitions table parser
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This parser deals with most TP-Link home routers. It reads info about
partitions and registers them in the MTD subsystem.
Example from TP-Link Archer C5 V2:
spi-nor spi0.0: s25fl128s1 (16384 Kbytes)
15 tplink-safeloader partitions found on MTD device spi0.0
Creating 15 MTD partitions on "spi0.0":
0x000000000000-0x000000040000 : "fs-uboot"
0x000000040000-0x000000440000 : "os-image"
0x000000440000-0x000000e40000 : "rootfs"
0x000000e40000-0x000000e40200 : "default-mac"
0x000000e40200-0x000000e40400 : "pin"
0x000000e40400-0x000000e40600 : "product-info"
0x000000e50000-0x000000e60000 : "partition-table"
0x000000e60000-0x000000e60200 : "soft-version"
0x000000e61000-0x000000e70000 : "support-list"
0x000000e70000-0x000000e80000 : "profile"
0x000000e80000-0x000000e90000 : "default-config"
0x000000e90000-0x000000ee0000 : "user-config"
0x000000ee0000-0x000000fe0000 : "log"
0x000000fe0000-0x000000ff0000 : "radio_bk"
0x000000ff0000-0x000001000000 : "radio"
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221015092950.27467-2-zajec5@gmail.com
---
drivers/mtd/parsers/Kconfig | 15 +++
drivers/mtd/parsers/Makefile | 1 +
drivers/mtd/parsers/tplink_safeloader.c | 150 ++++++++++++++++++++++++
3 files changed, 166 insertions(+)
create mode 100644 drivers/mtd/parsers/tplink_safeloader.c
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -113,6 +113,21 @@ config MTD_AFS_PARTS
for your particular device. It won't happen automatically. The
'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example.
+config MTD_PARSER_TPLINK_SAFELOADER
+ tristate "TP-Link Safeloader partitions parser"
+ depends on MTD && (ARCH_BCM_5301X || ATH79 || SOC_MT7620 || SOC_MT7621 || COMPILE_TEST)
+ help
+ TP-Link home routers use flash partitions to store various data. Info
+ about flash space layout is stored in a partitions table using a
+ custom ASCII-based format.
+
+ That format was first found in devices with SafeLoader bootloader and
+ was named after it. Later it was adapted to CFE and U-Boot
+ bootloaders.
+
+ This driver reads partitions table, parses it and creates MTD
+ partitions.
+
config MTD_PARSER_TRX
tristate "Parser for TRX format partitions"
depends on MTD && (BCM47XX || ARCH_BCM_5301X || COMPILE_TEST)
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -9,6 +9,7 @@ ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908) +=
ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)+= ofpart_linksys_ns.o
obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
+obj-$(CONFIG_MTD_PARSER_TPLINK_SAFELOADER) += tplink_safeloader.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
--- /dev/null
+++ b/drivers/mtd/parsers/tplink_safeloader.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright © 2022 Rafał Miłecki <rafal@milecki.pl>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+
+#define TPLINK_SAFELOADER_DATA_OFFSET 4
+#define TPLINK_SAFELOADER_MAX_PARTS 32
+
+struct safeloader_cmn_header {
+ __be32 size;
+ uint32_t unused;
+} __packed;
+
+static void *mtd_parser_tplink_safeloader_read_table(struct mtd_info *mtd)
+{
+ struct safeloader_cmn_header hdr;
+ struct device_node *np;
+ size_t bytes_read;
+ size_t offset;
+ size_t size;
+ char *buf;
+ int err;
+
+ np = mtd_get_of_node(mtd);
+ if (mtd_is_partition(mtd))
+ of_node_get(np);
+ else
+ np = of_get_child_by_name(np, "partitions");
+
+ if (of_property_read_u32(np, "partitions-table-offset", (u32 *)&offset)) {
+ pr_err("Failed to get partitions table offset\n");
+ goto err_put;
+ }
+
+ err = mtd_read(mtd, offset, sizeof(hdr), &bytes_read, (uint8_t *)&hdr);
+ if (err && !mtd_is_bitflip(err)) {
+ pr_err("Failed to read from %s at 0x%zx\n", mtd->name, offset);
+ goto err_put;
+ }
+
+ size = be32_to_cpu(hdr.size);
+
+ buf = kmalloc(size + 1, GFP_KERNEL);
+ if (!buf)
+ goto err_put;
+
+ err = mtd_read(mtd, offset + sizeof(hdr), size, &bytes_read, buf);
+ if (err && !mtd_is_bitflip(err)) {
+ pr_err("Failed to read from %s at 0x%zx\n", mtd->name, offset + sizeof(hdr));
+ goto err_kfree;
+ }
+
+ buf[size] = '\0';
+
+ of_node_put(np);
+
+ return buf;
+
+err_kfree:
+ kfree(buf);
+err_put:
+ of_node_put(np);
+ return NULL;
+}
+
+static int mtd_parser_tplink_safeloader_parse(struct mtd_info *mtd,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct mtd_partition *parts;
+ char name[65];
+ size_t offset;
+ size_t bytes;
+ char *buf;
+ int idx;
+ int err;
+
+ parts = kcalloc(TPLINK_SAFELOADER_MAX_PARTS, sizeof(*parts), GFP_KERNEL);
+ if (!parts) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+
+ buf = mtd_parser_tplink_safeloader_read_table(mtd);
+ if (!buf) {
+ err = -ENOENT;
+ goto err_out;
+ }
+
+ for (idx = 0, offset = TPLINK_SAFELOADER_DATA_OFFSET;
+ idx < TPLINK_SAFELOADER_MAX_PARTS &&
+ sscanf(buf + offset, "partition %64s base 0x%llx size 0x%llx%zn\n",
+ name, &parts[idx].offset, &parts[idx].size, &bytes) == 3;
+ idx++, offset += bytes + 1) {
+ parts[idx].name = kstrdup(name, GFP_KERNEL);
+ if (!parts[idx].name) {
+ err = -ENOMEM;
+ goto err_free;
+ }
+ }
+
+ if (idx == TPLINK_SAFELOADER_MAX_PARTS)
+ pr_warn("Reached maximum number of partitions!\n");
+
+ kfree(buf);
+
+ *pparts = parts;
+
+ return idx;
+
+err_free:
+ for (idx -= 1; idx >= 0; idx--)
+ kfree(parts[idx].name);
+err_out:
+ return err;
+};
+
+static void mtd_parser_tplink_safeloader_cleanup(const struct mtd_partition *pparts,
+ int nr_parts)
+{
+ int i;
+
+ for (i = 0; i < nr_parts; i++)
+ kfree(pparts[i].name);
+
+ kfree(pparts);
+}
+
+static const struct of_device_id mtd_parser_tplink_safeloader_of_match_table[] = {
+ { .compatible = "tplink,safeloader-partitions" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtd_parser_tplink_safeloader_of_match_table);
+
+static struct mtd_part_parser mtd_parser_tplink_safeloader = {
+ .parse_fn = mtd_parser_tplink_safeloader_parse,
+ .cleanup = mtd_parser_tplink_safeloader_cleanup,
+ .name = "tplink-safeloader",
+ .of_match_table = mtd_parser_tplink_safeloader_of_match_table,
+};
+module_mtd_part_parser(mtd_parser_tplink_safeloader);
+
+MODULE_LICENSE("GPL");

4
target/linux/generic/pending-5.4/435-mtd-add-routerbootpart-parser-config.patch
View File

@ -16,7 +16,7 @@ Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -195,3 +195,12 @@ config MTD_REDBOOT_PARTS_READONLY
@@ -210,3 +210,12 @@ config MTD_REDBOOT_PARTS_READONLY
'FIS directory' images, enable this option.
endif # MTD_REDBOOT_PARTS
@ -31,7 +31,7 @@ Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
+ formatted DTS.
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -13,3 +13,4 @@ obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
@@ -14,3 +14,4 @@ obj-$(CONFIG_MTD_PARSER_TPLINK_SAFELOADE
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o

6
target/linux/ipq806x/patches-5.4/0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch
View File

@ -18,7 +18,7 @@ Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -138,6 +138,13 @@ config MTD_PARSER_TRX
@@ -153,6 +153,13 @@ config MTD_PARSER_TRX
This driver will parse TRX header and report at least two partitions:
kernel and rootfs.
@ -34,9 +34,9 @@ Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>
depends on MTD_NAND_SHARPSL || MTD_NAND_TMIO || COMPILE_TEST
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -11,6 +11,7 @@ ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)
obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o
@@ -12,6 +12,7 @@ obj-$(CONFIG_MTD_PARSER_IMAGETAG) += par
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_PARSER_TPLINK_SAFELOADER) += tplink_safeloader.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
+obj-$(CONFIG_MTD_QCOM_SMEM_PARTS) += qcom_smem_part.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o

1
target/linux/ramips/mt7620/config-5.4
View File

@ -167,6 +167,7 @@ CONFIG_MODULES_USE_ELF_REL=y
# CONFIG_MT7621_WDT is not set
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CMDLINE_PARTS=y
# CONFIG_MTD_PARSER_TPLINK_SAFELOADER is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y

1
target/linux/ramips/mt7621/config-5.4
View File

@ -158,6 +158,7 @@ CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_NAND_CORE=y
CONFIG_MTD_NAND_ECC_SW_HAMMING=y
CONFIG_MTD_NAND_MT7621=y
# CONFIG_MTD_PARSER_TPLINK_SAFELOADER is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD_ROUTERBOOT_PARTS=y

1
target/linux/ramips/mt76x8/config-5.4
View File

@ -164,6 +164,7 @@ CONFIG_MODULES_USE_ELF_REL=y
CONFIG_MT7621_WDT=y
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CMDLINE_PARTS=y
# CONFIG_MTD_PARSER_TPLINK_SAFELOADER is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_SPLIT_TPLINK_FW=y