diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2008-04-29 13:46:53 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-29 13:46:53 -0700 |
| commit | f56bcd8013566d4ad4759ae5fc85a6660e4655c7 (patch) | |
| tree | 58b7e23f81caf5e6d8ada5819170f0bfb783d7e3 /drivers/infiniband/ulp/ipoib/ipoib_main.c | |
| parent | 87528227dfa8776d12779d073c217f0835fd6d20 (diff) | |
| download | linux-stable-f56bcd8013566d4ad4759ae5fc85a6660e4655c7.tar.gz | |
IPoIB: Use separate CQ for UD send completions
Use a dedicated CQ for UD send completions. Also, do not arm the UD
send CQ, which reduces the number of interrupts generated. This patch
farther reduces overhead by not calling poll CQ for every posted send
WR -- it does polls only when there 16 or more outstanding work requests.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_main.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 7a4ed9d3d844..2442090ac8d1 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1298,7 +1298,8 @@ static int __init ipoib_init_module(void) ipoib_sendq_size = roundup_pow_of_two(ipoib_sendq_size); ipoib_sendq_size = min(ipoib_sendq_size, IPOIB_MAX_QUEUE_SIZE); - ipoib_sendq_size = max(ipoib_sendq_size, IPOIB_MIN_QUEUE_SIZE); + ipoib_sendq_size = max(ipoib_sendq_size, max(2 * MAX_SEND_CQE, + IPOIB_MIN_QUEUE_SIZE)); #ifdef CONFIG_INFINIBAND_IPOIB_CM ipoib_max_conn_qp = min(ipoib_max_conn_qp, IPOIB_CM_MAX_CONN_QP); #endif |