From: Bruce Allan Date: Mon, 26 Oct 2009 11:23:06 +0000 (+0000) Subject: e1000e: increase swflag acquisition timeout for ICHx/PCH X-Git-Tag: v2.6.32-rc6~9^2~27 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=53ac5a887519f0c3fc94a6acdfc22aa4e97f64f7;p=platform%2Fkernel%2Flinux-stable.git e1000e: increase swflag acquisition timeout for ICHx/PCH In some conditions (e.g. when AMT is enabled on the system), it is possible to take an extended period of time to for the driver to acquire the sw/fw/hw hardware semaphore used to protect against concurrent access of a shared resource (e.g. PHY registers). This could cause PHY registers to not get configured properly resulting in link issues. Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index ead6651..fb2222d6 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -122,6 +122,8 @@ #define HV_LED_CONFIG PHY_REG(768, 30) /* LED Configuration */ +#define SW_FLAG_TIMEOUT 1000 /* SW Semaphore flag timeout in milliseconds */ + /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ /* Offset 04h HSFSTS */ union ich8_hws_flash_status { @@ -599,7 +601,7 @@ static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw) goto out; } - timeout = PHY_CFG_TIMEOUT * 2; + timeout = SW_FLAG_TIMEOUT; extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; ew32(EXTCNF_CTRL, extcnf_ctrl);