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| author | Bodong Wang <bodong@mellanox.com> | 2016-12-01 14:43:14 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-12-13 21:39:50 +0300 |
| commit | 528e5a1bd3f0e9b760cb3a1062fce7513712a15d (patch) | |
| tree | 0578a99a085a57b799bd4797ad25eeef336f1f5b | |
| parent | d949167d68b304c0a00331cf33ef49a29b65d85f (diff) | |
| download | linux-528e5a1bd3f0e9b760cb3a1062fce7513712a15d.tar.xz | |
IB/core: Support rate limit for packet pacing
Add new member rate_limit to ib_qp_attr which holds the packet pacing rate
in kbps, 0 means unlimited.
IB_QP_RATE_LIMIT is added to ib_attr_mask and could be used by RAW
QPs when changing QP state from RTR to RTS, RTS to RTS.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 2 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index c976f29f7ad2..71580cc28c9e 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1016,6 +1016,7 @@ static const struct { IB_QP_QKEY), [IB_QPT_GSI] = (IB_QP_CUR_STATE | IB_QP_QKEY), + [IB_QPT_RAW_PACKET] = IB_QP_RATE_LIMIT, } } }, @@ -1049,6 +1050,7 @@ static const struct { IB_QP_QKEY), [IB_QPT_GSI] = (IB_QP_CUR_STATE | IB_QP_QKEY), + [IB_QPT_RAW_PACKET] = IB_QP_RATE_LIMIT, } }, [IB_QPS_SQD] = { diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 73417a22ee4d..8029d2a51f14 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1102,6 +1102,7 @@ enum ib_qp_attr_mask { IB_QP_RESERVED2 = (1<<22), IB_QP_RESERVED3 = (1<<23), IB_QP_RESERVED4 = (1<<24), + IB_QP_RATE_LIMIT = (1<<25), }; enum ib_qp_state { @@ -1151,6 +1152,7 @@ struct ib_qp_attr { u8 rnr_retry; u8 alt_port_num; u8 alt_timeout; + u32 rate_limit; }; enum ib_wr_opcode { |