From patchwork Wed Nov 11 07:33:26 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: jubin.john@intel.com X-Patchwork-Id: 7594161 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 542D29F7CA for ; Wed, 11 Nov 2015 07:33:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 897672060D for ; Wed, 11 Nov 2015 07:33:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7957620591 for ; Wed, 11 Nov 2015 07:33:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751253AbbKKHdu (ORCPT ); Wed, 11 Nov 2015 02:33:50 -0500 Received: from mga01.intel.com ([192.55.52.88]:39308 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751350AbbKKHdk (ORCPT ); Wed, 11 Nov 2015 02:33:40 -0500 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP; 10 Nov 2015 23:33:40 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,274,1444719600"; d="scan'208";a="817003795" Received: from phlsvsds.ph.intel.com ([10.228.195.38]) by orsmga001.jf.intel.com with ESMTP; 10 Nov 2015 23:33:41 -0800 Received: from phlsvsds.ph.intel.com (localhost.localdomain [127.0.0.1]) by phlsvsds.ph.intel.com (8.13.8/8.13.8) with ESMTP id tAB7XcxY015271; Wed, 11 Nov 2015 02:33:38 -0500 Received: (from jjohn@localhost) by phlsvsds.ph.intel.com (8.13.8/8.13.8/Submit) id tAB7XblV015268; Wed, 11 Nov 2015 02:33:37 -0500 X-Authentication-Warning: phlsvsds.ph.intel.com: jjohn set sender to jubin.john@intel.com using -f From: Jubin John To: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org Cc: linux-rdma@vger.kernel.org, dledford@redhat.com, mike.marciniszyn@intel.com, ira.weiny@intel.com Subject: [PATCH 06/13] staging/rdma/hfi1: Move s_sde to the read mostly portion of the hfi1_qp structure Date: Wed, 11 Nov 2015 02:33:26 -0500 Message-Id: <1447227213-15122-6-git-send-email-jubin.john@intel.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1447227213-15122-1-git-send-email-jubin.john@intel.com> References: <1447227213-15122-1-git-send-email-jubin.john@intel.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Harish Chegondi This would reduce L2 cache misses on s_sde in the _hfi1_schedule_send function when invoked from post_send thereby improving performance of post_send. Reviewed-by: Mike Marciniszyn Signed-off-by: Harish Chegondi Signed-off-by: Jubin John --- drivers/staging/rdma/hfi1/verbs.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/staging/rdma/hfi1/verbs.h b/drivers/staging/rdma/hfi1/verbs.h index 600bd1b..638094d 100644 --- a/drivers/staging/rdma/hfi1/verbs.h +++ b/drivers/staging/rdma/hfi1/verbs.h @@ -441,6 +441,7 @@ struct hfi1_qp { struct hfi1_swqe *s_wq; /* send work queue */ struct hfi1_mmap_info *ip; struct ahg_ib_header *s_hdr; /* next packet header to send */ + struct sdma_engine *s_sde; /* current sde */ u8 s_sc; /* SC[0..4] for next packet */ unsigned long timeout_jiffies; /* computed from timeout */ @@ -504,7 +505,6 @@ struct hfi1_qp { struct hfi1_swqe *s_wqe; struct hfi1_sge_state s_sge; /* current send request data */ struct hfi1_mregion *s_rdma_mr; - struct sdma_engine *s_sde; /* current sde */ u32 s_cur_size; /* size of send packet in bytes */ u32 s_len; /* total length of s_sge */ u32 s_rdma_read_len; /* total length of s_rdma_read_sge */