This is a note to let you know that I've just added the patch titled
ARM: Orion: Set eth packet size csum offload limit
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-orion-set-eth-packet-size-csum-offload-limit.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 58569aee5a1a5dcc25c34a0a2ed9a377874e6b05 Mon Sep 17 00:00:00 2001
From: "Arnaud Patard (Rtp)" <arnaud.patard@xxxxxxxxxxx>
Date: Thu, 26 Jul 2012 12:15:46 +0200
Subject: ARM: Orion: Set eth packet size csum offload limit
From: "Arnaud Patard (Rtp)" <arnaud.patard@xxxxxxxxxxx>
commit 58569aee5a1a5dcc25c34a0a2ed9a377874e6b05 upstream.
The mv643xx ethernet controller limits the packet size for the TX
checksum offloading. This patch sets this limits for Kirkwood and
Dove which have smaller limits that the default.
As a side note, this patch is an updated version of a patch sent some years
ago: http://lists.infradead.org/pipermail/linux-arm-kernel/2010-June/017320.html
which seems to have been lost.
Signed-off-by: Arnaud Patard <arnaud.patard@xxxxxxxxxxx>
Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
[bwh: Backported to 3.2: adjust for the extra two parameters of
orion_ge0{0,1}_init()]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
[yangyl: Backported to 3.4: Adjust context]
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-dove/common.c | 2 +-
arch/arm/mach-kirkwood/common.c | 4 ++--
arch/arm/mach-mv78xx0/common.c | 6 ++++--
arch/arm/mach-orion5x/common.c | 3 ++-
arch/arm/plat-orion/common.c | 8 ++++++--
arch/arm/plat-orion/include/plat/common.h | 6 ++++--
include/linux/mv643xx_eth.h | 2 ++
7 files changed, 21 insertions(+), 10 deletions(-)
--- a/arch/arm/mach-dove/common.c
+++ b/arch/arm/mach-dove/common.c
@@ -90,7 +90,7 @@ void __init dove_ge00_init(struct mv643x
{
orion_ge00_init(eth_data,
DOVE_GE00_PHYS_BASE, IRQ_DOVE_GE00_SUM,
- 0, get_tclk());
+ 0, get_tclk(), 1600);
}
/*****************************************************************************
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -87,7 +87,7 @@ void __init kirkwood_ge00_init(struct mv
orion_ge00_init(eth_data,
GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM,
- IRQ_KIRKWOOD_GE00_ERR, kirkwood_tclk);
+ IRQ_KIRKWOOD_GE00_ERR, kirkwood_tclk, 1600);
}
@@ -101,7 +101,7 @@ void __init kirkwood_ge01_init(struct mv
orion_ge01_init(eth_data,
GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM,
- IRQ_KIRKWOOD_GE01_ERR, kirkwood_tclk);
+ IRQ_KIRKWOOD_GE01_ERR, kirkwood_tclk, 1600);
}
--- a/arch/arm/mach-mv78xx0/common.c
+++ b/arch/arm/mach-mv78xx0/common.c
@@ -199,7 +199,8 @@ void __init mv78xx0_ge00_init(struct mv6
{
orion_ge00_init(eth_data,
GE00_PHYS_BASE, IRQ_MV78XX0_GE00_SUM,
- IRQ_MV78XX0_GE_ERR, get_tclk());
+ IRQ_MV78XX0_GE_ERR, get_tclk(),
+ MV643XX_TX_CSUM_DEFAULT_LIMIT);
}
@@ -210,7 +211,8 @@ void __init mv78xx0_ge01_init(struct mv6
{
orion_ge01_init(eth_data,
GE01_PHYS_BASE, IRQ_MV78XX0_GE01_SUM,
- NO_IRQ, get_tclk());
+ NO_IRQ, get_tclk(),
+ MV643XX_TX_CSUM_DEFAULT_LIMIT);
}
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -95,7 +95,8 @@ void __init orion5x_eth_init(struct mv64
{
orion_ge00_init(eth_data,
ORION5X_ETH_PHYS_BASE, IRQ_ORION5X_ETH_SUM,
- IRQ_ORION5X_ETH_ERR, orion5x_tclk);
+ IRQ_ORION5X_ETH_ERR, orion5x_tclk,
+ MV643XX_TX_CSUM_DEFAULT_LIMIT);
}
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -261,10 +261,12 @@ void __init orion_ge00_init(struct mv643
unsigned long mapbase,
unsigned long irq,
unsigned long irq_err,
- int tclk)
+ int tclk,
+ unsigned int tx_csum_limit)
{
fill_resources(&orion_ge00_shared, orion_ge00_shared_resources,
mapbase + 0x2000, SZ_16K - 1, irq_err);
+ orion_ge00_shared_data.tx_csum_limit = tx_csum_limit;
ge_complete(&orion_ge00_shared_data, tclk,
orion_ge00_resources, irq, &orion_ge00_shared,
eth_data, &orion_ge00);
@@ -314,10 +316,12 @@ void __init orion_ge01_init(struct mv643
unsigned long mapbase,
unsigned long irq,
unsigned long irq_err,
- int tclk)
+ int tclk,
+ unsigned int tx_csum_limit)
{
fill_resources(&orion_ge01_shared, orion_ge01_shared_resources,
mapbase + 0x2000, SZ_16K - 1, irq_err);
+ orion_ge01_shared_data.tx_csum_limit = tx_csum_limit;
ge_complete(&orion_ge01_shared_data, tclk,
orion_ge01_resources, irq, &orion_ge01_shared,
eth_data, &orion_ge01);
--- a/arch/arm/plat-orion/include/plat/common.h
+++ b/arch/arm/plat-orion/include/plat/common.h
@@ -40,13 +40,15 @@ void __init orion_ge00_init(struct mv643
unsigned long mapbase,
unsigned long irq,
unsigned long irq_err,
- int tclk);
+ int tclk,
+ unsigned int tx_csum_limit);
void __init orion_ge01_init(struct mv643xx_eth_platform_data *eth_data,
unsigned long mapbase,
unsigned long irq,
unsigned long irq_err,
- int tclk);
+ int tclk,
+ unsigned int tx_csum_limit);
void __init orion_ge10_init(struct mv643xx_eth_platform_data *eth_data,
unsigned long mapbase,
--- a/include/linux/mv643xx_eth.h
+++ b/include/linux/mv643xx_eth.h
@@ -15,6 +15,8 @@
#define MV643XX_ETH_SIZE_REG_4 0x2224
#define MV643XX_ETH_BASE_ADDR_ENABLE_REG 0x2290
+#define MV643XX_TX_CSUM_DEFAULT_LIMIT 0
+
struct mv643xx_eth_shared_platform_data {
struct mbus_dram_target_info *dram;
struct platform_device *shared_smi;
Patches currently in stable-queue which might be from arnaud.patard@xxxxxxxxxxx are
queue-3.4/arm-orion-set-eth-packet-size-csum-offload-limit.patch
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