diff options
| author | Vipul Pandya <vipul@chelsio.com> | 2013-03-14 05:09:00 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-14 11:35:58 -0400 |
| commit | 80ccdd60512fc19fa87bf02876c59aeeb82fe4bc (patch) | |
| tree | 1121801ace06f0c4821fcd1a619032cb9540cbee /drivers/infiniband/hw/cxgb4/qp.c | |
| parent | 3cbdb928e2ddd16649769c8597a3ebc06c7594fd (diff) | |
RDMA/cxgb4: Add module_params to enable DB FC & Coalescing on T5
Both DB Flow-Control and DB Coalescing are disabled by default on T5
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/qp.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/qp.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index da4869f41e35..28592d45809b 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -1455,8 +1455,9 @@ int c4iw_destroy_qp(struct ib_qp *ib_qp) rhp->db_state = NORMAL; idr_for_each(&rhp->qpidr, enable_qp_db, NULL); } - if (rhp->qpcnt <= db_coalescing_threshold) - cxgb4_enable_db_coalescing(rhp->rdev.lldi.ports[0]); + if (db_coalescing_threshold >= 0) + if (rhp->qpcnt <= db_coalescing_threshold) + cxgb4_enable_db_coalescing(rhp->rdev.lldi.ports[0]); spin_unlock_irq(&rhp->lock); atomic_dec(&qhp->refcnt); wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); @@ -1574,8 +1575,9 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attrs, rhp->db_state = FLOW_CONTROL; idr_for_each(&rhp->qpidr, disable_qp_db, NULL); } - if (rhp->qpcnt > db_coalescing_threshold) - cxgb4_disable_db_coalescing(rhp->rdev.lldi.ports[0]); + if (db_coalescing_threshold >= 0) + if (rhp->qpcnt > db_coalescing_threshold) + cxgb4_disable_db_coalescing(rhp->rdev.lldi.ports[0]); ret = insert_handle_nolock(rhp, &rhp->qpidr, qhp, qhp->wq.sq.qid); spin_unlock_irq(&rhp->lock); if (ret) |