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| author | Bruce Allan <bruce.w.allan@intel.com> | 2010-11-24 09:01:30 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2010-12-11 09:13:11 +0300 |
| commit | cbd006cb7d4e7b76c6febf7f51e970bced132914 (patch) | |
| tree | 4cd536bfbec78ea5efc7d67d2e328da367c0cf7b /drivers/net/e1000e/ethtool.c | |
| parent | ed5c2b0b78e5467f7948bef92b21f3c76823f392 (diff) | |
| download | linux-cbd006cb7d4e7b76c6febf7f51e970bced132914.tar.xz | |
e1000e: 82577/8 must acquire h/w semaphore before workaround
The workaround function e1000_configure_k1_pchlan() assumes the h/w
semaphore is already acquired. This was originally missed when setting up
the part for the ethtool loopback test.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/e1000e/ethtool.c')
| -rw-r--r-- | drivers/net/e1000e/ethtool.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 5c6bc6ac069c..c10dc694d733 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -1249,6 +1249,7 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) u32 ctrl_reg = 0; u32 stat_reg = 0; u16 phy_reg = 0; + s32 ret_val = 0; hw->mac.autoneg = 0; @@ -1308,7 +1309,13 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) case e1000_phy_82577: case e1000_phy_82578: /* Workaround: K1 must be disabled for stable 1Gbps operation */ + ret_val = hw->phy.ops.acquire(hw); + if (ret_val) { + e_err("Cannot setup 1Gbps loopback.\n"); + return ret_val; + } e1000_configure_k1_ich8lan(hw, false); + hw->phy.ops.release(hw); break; case e1000_phy_82579: /* Disable PHY energy detect power down */ |