From patchwork Tue Nov 17 02:59:28 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: 7632011 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B121EBF90C for ; Tue, 17 Nov 2015 02:59:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E054B204D1 for ; Tue, 17 Nov 2015 02:59:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CBF0C2052A for ; Tue, 17 Nov 2015 02:59:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751942AbbKQC7o (ORCPT ); Mon, 16 Nov 2015 21:59:44 -0500 Received: from mga09.intel.com ([134.134.136.24]:52175 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751884AbbKQC7m (ORCPT ); Mon, 16 Nov 2015 21:59:42 -0500 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP; 16 Nov 2015 18:59:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,305,1444719600"; d="scan'208";a="840197806" Received: from phlsvsds.ph.intel.com ([10.228.195.38]) by fmsmga001.fm.intel.com with ESMTP; 16 Nov 2015 18:59:42 -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 tAH2xeQD029714; Mon, 16 Nov 2015 21:59:41 -0500 Received: (from jjohn@localhost) by phlsvsds.ph.intel.com (8.13.8/8.13.8/Submit) id tAH2xevm029710; Mon, 16 Nov 2015 21:59:40 -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 v2 06/13] staging/rdma/hfi1: Move s_sde to the read mostly portion of the hfi1_qp structure Date: Mon, 16 Nov 2015 21:59:28 -0500 Message-Id: <1447729175-28745-7-git-send-email-jubin.john@intel.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1447729175-28745-1-git-send-email-jubin.john@intel.com> References: <1447729175-28745-1-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=-7.7 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 */