Tony, Are there comments with respect to this patch. Will this be merged in the next window? Regards Sriram
> -----Original Message----- > From: linux-omap-ow...@vger.kernel.org [mailto:linux-omap- > ow...@vger.kernel.org] On Behalf Of Govindarajan, Sriramakrishnan > Sent: Wednesday, October 28, 2009 7:19 PM > To: linux-omap@vger.kernel.org > Cc: Govindarajan, Sriramakrishnan > Subject: [PATCH] omap3evm: Migrate to smsc911x ethernet driver. > > Migrate to smsc911x ethernet driver instead of smc911x driver. > The smsc911x ethernet driver supports NAPI and performs better > under heavy traffic. With the smc911x driver we were witnessing > very high iowait time for high IO load over NFS. > > Signed-off-by: Sriramakrishnan <s...@ti.com> > --- > This patch is generated against tip of for-next branch. > > arch/arm/configs/omap3_evm_defconfig | 4 +- > arch/arm/mach-omap2/board-omap3evm.c | 36 > +++++++++++++++++++++++++-------- > 2 files changed, 29 insertions(+), 11 deletions(-) > > diff --git a/arch/arm/configs/omap3_evm_defconfig > b/arch/arm/configs/omap3_evm_defconfig > index d5ff477..50afc67 100644 > --- a/arch/arm/configs/omap3_evm_defconfig > +++ b/arch/arm/configs/omap3_evm_defconfig > @@ -617,8 +617,8 @@ CONFIG_MII=y > # CONFIG_DM9000 is not set > # CONFIG_ENC28J60 is not set > # CONFIG_ETHOC is not set > -CONFIG_SMC911X=y > -# CONFIG_SMSC911X is not set > +# CONFIG_SMC911X is not set > +CONFIG_SMSC911X=y > # CONFIG_DNET is not set > # CONFIG_IBM_NEW_EMAC_ZMII is not set > # CONFIG_IBM_NEW_EMAC_RGMII is not set > diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach- > omap2/board-omap3evm.c > index 5d2310e..9bcdaf7 100644 > --- a/arch/arm/mach-omap2/board-omap3evm.c > +++ b/arch/arm/mach-omap2/board-omap3evm.c > @@ -21,11 +21,13 @@ > #include <linux/gpio.h> > #include <linux/input.h> > #include <linux/leds.h> > +#include <linux/interrupt.h> > > #include <linux/spi/spi.h> > #include <linux/spi/ads7846.h> > #include <linux/i2c/twl4030.h> > #include <linux/usb/otg.h> > +#include <linux/smsc911x.h> > > #include <linux/regulator/machine.h> > > @@ -51,7 +53,8 @@ > #define OMAP3EVM_ETHR_GPIO_IRQ 176 > #define OMAP3EVM_SMC911X_CS 5 > > -static struct resource omap3evm_smc911x_resources[] = { > +#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) > +static struct resource omap3evm_smsc911x_resources[] = { > [0] = { > .start = OMAP3EVM_ETHR_START, > .end = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1), > @@ -60,18 +63,28 @@ static struct resource > omap3evm_smc911x_resources[] = { > [1] = { > .start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ), > .end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ), > - .flags = IORESOURCE_IRQ, > + .flags = (IORESOURCE_IRQ | IRQF_TRIGGER_LOW), > }, > }; > > -static struct platform_device omap3evm_smc911x_device = { > - .name = "smc911x", > +static struct smsc911x_platform_config smsc911x_config = { > + .phy_interface = PHY_INTERFACE_MODE_MII, > + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, > + .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, > + .flags = (SMSC911X_USE_32BIT | > SMSC911X_SAVE_MAC_ADDRESS), > +}; > + > +static struct platform_device omap3evm_smsc911x_device = { > + .name = "smsc911x", > .id = -1, > - .num_resources = ARRAY_SIZE(omap3evm_smc911x_resources), > - .resource = &omap3evm_smc911x_resources[0], > + .num_resources = ARRAY_SIZE(omap3evm_smsc911x_resources), > + .resource = &omap3evm_smsc911x_resources[0], > + .dev = { > + .platform_data = &smsc911x_config, > + }, > }; > > -static inline void __init omap3evm_init_smc911x(void) > +static inline void __init omap3evm_init_smsc911x(void) > { > int eth_cs; > struct clk *l3ck; > @@ -92,8 +105,14 @@ static inline void __init > omap3evm_init_smc911x(void) > } > > gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ); > + > + platform_device_register(&omap3evm_smsc911x_device); > } > > +#else > +static inline void __init omap3evm_init_smsc911x(void) { return; } > +#endif > + > static struct regulator_consumer_supply omap3evm_vmmc1_supply = { > .supply = "vmmc", > }; > @@ -335,12 +354,10 @@ static void __init omap3_evm_init_irq(void) > omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL); > omap_init_irq(); > omap_gpio_init(); > - omap3evm_init_smc911x(); > } > > static struct platform_device *omap3_evm_devices[] __initdata = { > &omap3_evm_lcd_device, > - &omap3evm_smc911x_device, > }; > > static void __init omap3_evm_init(void) > @@ -359,6 +376,7 @@ static void __init omap3_evm_init(void) > #endif > usb_musb_init(); > ads7846_dev_init(); > + omap3evm_init_smsc911x(); > } > > static void __init omap3_evm_map_io(void) [Hiremath, Vaibhav] I validated this patch on OMAP3EVM and it is working for me. At-least I could able to mount NFS and work without any issue, which was failing before with SMC911x. For me, earlier I was not able to mount NFS filesystem at all. Verified-by: Vaibhav Hiremath <hvaib...@ti.com> Thanks, Vaibhav > -- > 1.6.2.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux- > omap" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
