ARM: Orion: Set eth packet size csum offload limit

commit 58569aee5a 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@rtp-net.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
[bwh: Backported to 3.2: adjust for the extra two parameters of
 orion_ge0{0,1}_init()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
[yangyl: Backported to 3.4: Adjust context]
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnaud Patard (Rtp) 2012-07-26 12:15:46 +02:00 committed by Greg Kroah-Hartman
parent e1d3e024ab
commit f993888a1a
7 changed files with 21 additions and 10 deletions

View file

@ -90,7 +90,7 @@ void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
{
orion_ge00_init(eth_data,
DOVE_GE00_PHYS_BASE, IRQ_DOVE_GE00_SUM,
0, get_tclk());
0, get_tclk(), 1600);
}
/*****************************************************************************

View file

@ -87,7 +87,7 @@ void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
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 mv643xx_eth_platform_data *eth_data)
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);
}

View file

@ -199,7 +199,8 @@ void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data)
{
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 mv643xx_eth_platform_data *eth_data)
{
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);
}

View file

@ -95,7 +95,8 @@ void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
{
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);
}

View file

@ -261,10 +261,12 @@ void __init orion_ge00_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)
{
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 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)
{
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);

View file

@ -40,13 +40,15 @@ void __init orion_ge00_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_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,

View file

@ -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;