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| author | Bart Van Assche <bart.vanassche@gmail.com> | 2010-02-02 19:23:54 +0000 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-03-01 23:51:38 -0800 |
| commit | 9c03dc9f19351edf25c1107e3cfd3cc538c7ab9e (patch) | |
| tree | b96f2a43eeeed19d60dc0e6337d9fc91f1f6d804 /drivers/infiniband/ulp/srp/ib_srp.h | |
| parent | 676ad585531e965416fd958747894541dabcec96 (diff) | |
| download | blackbird-op-linux-9c03dc9f19351edf25c1107e3cfd3cc538c7ab9e.tar.gz blackbird-op-linux-9c03dc9f19351edf25c1107e3cfd3cc538c7ab9e.zip | |
IB/srp: Split send and recieve CQs to reduce number of interrupts
We can reduce the number of IB interrupts from two interrupts per
srp_queuecommand() call to one by using separate CQs for send and
receive completions and processing send completions by polling every
time a TX IU is allocated.
Receive completion events still trigger an interrupt.
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.h')
| -rw-r--r-- | drivers/infiniband/ulp/srp/ib_srp.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h index e185b907fc12..5a80eac6fdaa 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.h +++ b/drivers/infiniband/ulp/srp/ib_srp.h @@ -60,7 +60,6 @@ enum { SRP_RQ_SHIFT = 6, SRP_RQ_SIZE = 1 << SRP_RQ_SHIFT, SRP_SQ_SIZE = SRP_RQ_SIZE - 1, - SRP_CQ_SIZE = SRP_SQ_SIZE + SRP_RQ_SIZE, SRP_TAG_TSK_MGMT = 1 << (SRP_RQ_SHIFT + 1), @@ -69,8 +68,6 @@ enum { SRP_FMR_DIRTY_SIZE = SRP_FMR_POOL_SIZE / 4 }; -#define SRP_OP_RECV (1 << 31) - enum srp_target_state { SRP_TARGET_LIVE, SRP_TARGET_CONNECTING, @@ -133,7 +130,8 @@ struct srp_target_port { int path_query_id; struct ib_cm_id *cm_id; - struct ib_cq *cq; + struct ib_cq *recv_cq; + struct ib_cq *send_cq; struct ib_qp *qp; int max_ti_iu_len; |
