diff options
| author | Mike Marciniszyn <mike.marciniszyn@qlogic.com> | 2011-01-10 17:42:22 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2011-01-10 17:42:22 -0800 |
| commit | 994bcd28a36af1413381dfe0aac065e2cbc2af40 (patch) | |
| tree | 26f4685a39d94dbfbab346862061ef6f577653f2 /drivers/infiniband/hw/qib/qib_iba7322.c | |
| parent | 2a600f14d25fda341b5633c75cc50a7574fc1007 (diff) | |
IB/qib: Issue pre-emptive NAKs on eager buffer overflow
Under congestion resulting in eager buffer overflow attempt to send
pre-emptive NAKs if header queue entries with TID errors are generated
and a valid header is present. This prevents long timeouts and flow
restarts if a trailing set of packets are dropped due to eager
overflows. Pre-emptive NAKs are currently only supported for RDMA
writes.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_iba7322.c')
0 files changed, 0 insertions, 0 deletions