diff options
| author | John Fastabend <[email protected]> | 2010-10-28 00:59:57 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2010-10-28 17:19:00 +0000 |
| commit | 9806307a1c5a2a79e268ae4e78b437d38c8adf7f (patch) | |
| tree | 1a4ceada09e85a3cd9083790c6b16a16e99bb928 /net/dccp/ccids/ccid2.c | |
| parent | e1000e: Add check for reset flags before displaying reset message (diff) | |
| download | kernel-9806307a1c5a2a79e268ae4e78b437d38c8adf7f.tar.gz kernel-9806307a1c5a2a79e268ae4e78b437d38c8adf7f.zip | |
ixgbe: DCB, fix TX hang occurring in stress condition with PFC
The DCB credits refill quantum _must_ be greater than half the max
packet size. This is needed to guarantee that TX DMA operations
are not attempted during a pause state. Additionally, the min IFG
must be set correctly for DCB mode. If a DMA operation is
requested unexpectedly during the pause state the HW data
store may be corrupted leading to a DMA hang. The DMA hang
requires a reset to correct. This fixes the HW configuration
to avoid this condition.
Signed-off-by: John Fastabend <[email protected]>
Tested-by: Ross Brattain <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/dccp/ccids/ccid2.c')
0 files changed, 0 insertions, 0 deletions