diff options
| author | Bruce Allan <bruce.w.allan@intel.com> | 2009-10-26 11:23:06 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-26 16:16:19 -0700 |
| commit | 53ac5a887519f0c3fc94a6acdfc22aa4e97f64f7 (patch) | |
| tree | 633a65d0b39bf9846d5f00621663ab506abd4bae /drivers/net | |
| parent | db2932ecf8dc07f65b410e921f96c5c51170c0ae (diff) | |
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 <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/e1000e/ich8lan.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index ead66510e22..fb2222d60a7 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); |