From patchwork Mon Oct 31 10:21:35 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 9406565 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B86B760585 for ; Mon, 31 Oct 2016 21:10:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AAEF128CEC for ; Mon, 31 Oct 2016 21:10:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9FADD28CF9; Mon, 31 Oct 2016 21:10:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.4 required=2.0 tests=BAYES_00, DATE_IN_PAST_06_12, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E95028CEC for ; Mon, 31 Oct 2016 21:10:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S946958AbcJaVK3 (ORCPT ); Mon, 31 Oct 2016 17:10:29 -0400 Received: from mail.kernel.org ([198.145.29.136]:59928 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935253AbcJaVK2 (ORCPT ); Mon, 31 Oct 2016 17:10:28 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 65A22201CE; Mon, 31 Oct 2016 21:10:27 +0000 (UTC) Received: from localhost (unknown [209.136.131.136]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6A9B22011E; Mon, 31 Oct 2016 21:10:26 +0000 (UTC) From: Leon Romanovsky To: dledford@redhat.com Cc: linux-rdma@vger.kernel.org, Bodong Wang 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> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1477909297-14491-1-git-send-email-leon@kernel.org> References: <1477909297-14491-1-git-send-email-leon@kernel.org> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 {