From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: [PATCH rdma-next 2/4] IB/core: Support rate limit for packet pacing Date: Mon, 31 Oct 2016 12:21:35 +0200 Message-ID: <1477909297-14491-3-git-send-email-leon@kernel.org> References: <1477909297-14491-1-git-send-email-leon@kernel.org> Return-path: In-Reply-To: <1477909297-14491-1-git-send-email-leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Bodong Wang List-Id: linux-rdma@vger.kernel.org From: Bodong Wang 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 Reviewed-by: Matan Barak Signed-off-by: Leon Romanovsky --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html