From patchwork Sun Aug 28 11:27:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Romanovsky X-Patchwork-Id: 9302709 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 5312B601C0 for ; Sun, 28 Aug 2016 11:27:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 44BDC288B6 for ; Sun, 28 Aug 2016 11:27:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 399D828900; Sun, 28 Aug 2016 11:27:26 +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=-6.9 required=2.0 tests=BAYES_00,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 D578E288B6 for ; Sun, 28 Aug 2016 11:27:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755391AbcH1L1Z (ORCPT ); Sun, 28 Aug 2016 07:27:25 -0400 Received: from mail.kernel.org ([198.145.29.136]:50680 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755273AbcH1L1Y (ORCPT ); Sun, 28 Aug 2016 07:27:24 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1BAB220221; Sun, 28 Aug 2016 11:27:23 +0000 (UTC) Received: from localhost (unknown [193.47.165.251]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 83C142024C; Sun, 28 Aug 2016 11:27:21 +0000 (UTC) From: Leon Romanovsky To: dledford@redhat.com Cc: linux-rdma@vger.kernel.org, Bodong Wang Subject: [PATCH rdma-next 2/3] IB/core: Support rate limit for packet pacing Date: Sun, 28 Aug 2016 14:27:10 +0300 Message-Id: <1472383631-3494-3-git-send-email-leon@kernel.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1472383631-3494-1-git-send-email-leon@kernel.org> References: <1472383631-3494-1-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 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 f2b776e..1221215 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -992,6 +992,7 @@ static const struct { IB_QP_QKEY), [IB_QPT_GSI] = (IB_QP_CUR_STATE | IB_QP_QKEY), + [IB_QPT_RAW_PACKET] = IB_QP_RATE_LIMIT, } } }, @@ -1025,6 +1026,7 @@ 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 8e90dd2..b27f233 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1088,6 +1088,7 @@ 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 { @@ -1137,6 +1138,7 @@ struct ib_qp_attr { u8 rnr_retry; u8 alt_port_num; u8 alt_timeout; + u32 rate_limit; }; enum ib_wr_opcode {