diff options
| author |   Bruce Allan <bruce.w.allan@intel.com> | 2011-12-16 00:46:22 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2012-01-25 23:13:21 -0800 |
| commit | d6cb17d5f8015717f6963d24d52b06292a4cb40a (patch) | |
| tree | 46b6a9c4128ea3fb13e98e0b898ac408a9e7d887 | |
| parent | e1000e: use hardware default values for Transmit Control register (diff) | |
| download | linux-dev-d6cb17d5f8015717f6963d24d52b06292a4cb40a.tar.xz linux-dev-d6cb17d5f8015717f6963d24d52b06292a4cb40a.zip | |
e1000e: 82574/82583 Tx hang workaround
On 82574/82583, there is a hardware bug which might cause a Tx hang when
the internal buffer is full. Setting this bit enables a hardware fix to
work around the issue.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/82571.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c index a3e65fd26e09..0609ac69bb38 100644 --- a/drivers/net/ethernet/intel/e1000e/82571.c +++ b/drivers/net/ethernet/intel/e1000e/82571.c @@ -1227,6 +1227,10 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw) case e1000_82572: reg |= (1 << 23) | (1 << 24) | (1 << 25) | (1 << 26); break; + case e1000_82574: + case e1000_82583: + reg |= (1 << 26); + break; default: break; } |