ibcore: 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. Linux commit: 528e5a1bd3f0e9b760cb3a1062fce7513712a15d MFC after: 1 week Reviewed by: kib Sponsored by: Mellanox Technologies // NVIDIA Networking
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@ -1016,6 +1016,7 @@ static const struct {
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IB_QP_QKEY),
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[IB_QPT_GSI] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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[IB_QPT_RAW_PACKET] = IB_QP_RATE_LIMIT,
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}
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}
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},
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@ -1049,6 +1050,7 @@ static const struct {
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IB_QP_QKEY),
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[IB_QPT_GSI] = (IB_QP_CUR_STATE |
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IB_QP_QKEY),
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[IB_QPT_RAW_PACKET] = IB_QP_RATE_LIMIT,
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}
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},
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[IB_QPS_SQD] = {
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@ -1132,6 +1132,7 @@ enum ib_qp_attr_mask {
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IB_QP_RESERVED2 = (1<<22),
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IB_QP_RESERVED3 = (1<<23),
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IB_QP_RESERVED4 = (1<<24),
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IB_QP_RATE_LIMIT = (1<<25),
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};
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enum ib_qp_state {
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@ -1182,6 +1183,7 @@ struct ib_qp_attr {
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u8 rnr_retry;
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u8 alt_port_num;
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u8 alt_timeout;
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u32 rate_limit;
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};
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enum ib_wr_opcode {
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