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IB/core: Support rate limit for packet pacing

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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 <[email protected]>
Reviewed-by: Matan Barak <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Bodong Wang 2016-12-01 13:43:14 +02:00 • committed by Doug Ledford
commit 528e5a1bd3
2 changed files with 4 additions and 0 deletions
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2
include/rdma/ib_verbs.h
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@ -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 {