From: Bodong Wang <bodong@xxxxxxxxxxxx>
Add new member rate_limit to ib_qp_attr, it shows the packet pacing rate
in Kbps, 0 means unlimited.
IB_QP_RATE_LIMIT is added to ib_attr_mask, and it could be used by RAW
QPs when changing QP state from RTR to RTS, RTS to RTS.
Signed-off-by: Bodong Wang <bodong@xxxxxxxxxxxx>
Reviewed-by: Matan Barak <matanb@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
---
drivers/infiniband/core/verbs.c | 2 ++
include/rdma/ib_verbs.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 8368764..3e688b3 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1014,6 +1014,7 @@ static const struct {
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_CUR_STATE |
IB_QP_QKEY),
+ [IB_QPT_RAW_PACKET] = IB_QP_RATE_LIMIT,
}
}
},
@@ -1047,6 +1048,7 @@ 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 5ad43a4..a065361 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 {
--
2.7.4
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