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| author | Santosh Shilimkar <santosh.shilimkar@oracle.com> | 2016-03-08 20:19:01 +0300 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@oracle.com> | 2017-01-03 01:02:47 +0300 |
| commit | 56012459310a1dbcc55c2dbf5500a9f7571402cb (patch) | |
| tree | 38c3280346b68541e459497342a0246998a9089f /net/rds/ib_cm.c | |
| parent | 584a8279a44a800dea5a5c1e9d53a002e03016b4 (diff) | |
| download | linux-56012459310a1dbcc55c2dbf5500a9f7571402cb.tar.xz | |
RDS: IB: split the mr registration and invalidation path
MR invalidation in RDS is done in background thread and not in
data path like registration. So break the dependency between them
which helps to remove the performance bottleneck.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Diffstat (limited to 'net/rds/ib_cm.c')
| -rw-r--r-- | net/rds/ib_cm.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c index b9da1e59ecc1..3002acf75766 100644 --- a/net/rds/ib_cm.c +++ b/net/rds/ib_cm.c @@ -382,7 +382,10 @@ static int rds_ib_setup_qp(struct rds_connection *conn) * completion queue and send queue. This extra space is used for FRMR * registration and invalidation work requests */ - fr_queue_space = (rds_ibdev->use_fastreg ? RDS_IB_DEFAULT_FR_WR : 0); + fr_queue_space = rds_ibdev->use_fastreg ? + (RDS_IB_DEFAULT_FR_WR + 1) + + (RDS_IB_DEFAULT_FR_INV_WR + 1) + : 0; /* add the conn now so that connection establishment has the dev */ rds_ib_add_conn(rds_ibdev, conn); @@ -444,6 +447,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn) attr.send_cq = ic->i_send_cq; attr.recv_cq = ic->i_recv_cq; atomic_set(&ic->i_fastreg_wrs, RDS_IB_DEFAULT_FR_WR); + atomic_set(&ic->i_fastunreg_wrs, RDS_IB_DEFAULT_FR_INV_WR); /* * XXX this can fail if max_*_wr is too large? Are we supposed @@ -766,7 +770,8 @@ void rds_ib_conn_path_shutdown(struct rds_conn_path *cp) wait_event(rds_ib_ring_empty_wait, rds_ib_ring_empty(&ic->i_recv_ring) && (atomic_read(&ic->i_signaled_sends) == 0) && - (atomic_read(&ic->i_fastreg_wrs) == RDS_IB_DEFAULT_FR_WR)); + (atomic_read(&ic->i_fastreg_wrs) == RDS_IB_DEFAULT_FR_WR) && + (atomic_read(&ic->i_fastunreg_wrs) == RDS_IB_DEFAULT_FR_INV_WR)); tasklet_kill(&ic->i_send_tasklet); tasklet_kill(&ic->i_recv_tasklet); |