From patchwork Fri Nov 20 16:35:10 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 7669781 Return-Path: X-Original-To: patchwork-linux-block@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 D871A9F731 for ; Fri, 20 Nov 2015 16:41:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id ECE0E20384 for ; Fri, 20 Nov 2015 16:41:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EBA2D20459 for ; Fri, 20 Nov 2015 16:41:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1163157AbbKTQlQ (ORCPT ); Fri, 20 Nov 2015 11:41:16 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:52069 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161582AbbKTQlN (ORCPT ); Fri, 20 Nov 2015 11:41:13 -0500 Received: from p3ee3e1bb.dip0.t-ipconnect.de ([62.227.225.187] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZzokJ-0007LR-Df; Fri, 20 Nov 2015 16:41:12 +0000 From: Christoph Hellwig To: keith.busch@intel.com, axboe@fb.com Cc: linux-nvme@lists.infradead.org, linux-block@vger.kernel.org Subject: [PATCH 15/47] nvme: move nvme_setup_flush and nvme_setup_rw to common code Date: Fri, 20 Nov 2015 17:35:10 +0100 Message-Id: <1448037342-18384-16-git-send-email-hch@lst.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1448037342-18384-1-git-send-email-hch@lst.de> References: <1448037342-18384-1-git-send-email-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Spam-Status: No, score=-7.5 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 And mark them inline so that we don't slow down the I/O submission path by having to turn it into a forced out of line call. Signed-off-by: Christoph Hellwig Signed-off-by: Keith Busch --- drivers/nvme/host/nvme.h | 51 ++++++++++++++++++++++++++++++++++++++++++++++++ drivers/nvme/host/pci.c | 49 ---------------------------------------------- 2 files changed, 51 insertions(+), 49 deletions(-) diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index c06bb9c..682fd35 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -86,6 +86,57 @@ static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector) return (sector >> (ns->lba_shift - 9)); } +static inline void nvme_setup_flush(struct nvme_ns *ns, + struct nvme_command *cmnd) +{ + memset(cmnd, 0, sizeof(*cmnd)); + cmnd->common.opcode = nvme_cmd_flush; + cmnd->common.nsid = cpu_to_le32(ns->ns_id); +} + +static inline void nvme_setup_rw(struct nvme_ns *ns, struct request *req, + struct nvme_command *cmnd) +{ + u16 control = 0; + u32 dsmgmt = 0; + + if (req->cmd_flags & REQ_FUA) + control |= NVME_RW_FUA; + if (req->cmd_flags & (REQ_FAILFAST_DEV | REQ_RAHEAD)) + control |= NVME_RW_LR; + + if (req->cmd_flags & REQ_RAHEAD) + dsmgmt |= NVME_RW_DSM_FREQ_PREFETCH; + + memset(cmnd, 0, sizeof(*cmnd)); + cmnd->rw.opcode = (rq_data_dir(req) ? nvme_cmd_write : nvme_cmd_read); + cmnd->rw.command_id = req->tag; + cmnd->rw.nsid = cpu_to_le32(ns->ns_id); + cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req))); + cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1); + + if (ns->ms) { + switch (ns->pi_type) { + case NVME_NS_DPS_PI_TYPE3: + control |= NVME_RW_PRINFO_PRCHK_GUARD; + break; + case NVME_NS_DPS_PI_TYPE1: + case NVME_NS_DPS_PI_TYPE2: + control |= NVME_RW_PRINFO_PRCHK_GUARD | + NVME_RW_PRINFO_PRCHK_REF; + cmnd->rw.reftag = cpu_to_le32( + nvme_block_nr(ns, blk_rq_pos(req))); + break; + } + if (!blk_integrity_rq(req)) + control |= NVME_RW_PRINFO_PRACT; + } + + cmnd->rw.control = cpu_to_le16(control); + cmnd->rw.dsmgmt = cpu_to_le32(dsmgmt); +} + + static inline int nvme_error_status(u16 status) { switch (status & 0x7ff) { diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 92fb388..7b49b13 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -856,55 +856,6 @@ static int nvme_setup_discard(struct nvme_queue *nvmeq, struct nvme_ns *ns, return BLK_MQ_RQ_QUEUE_OK; } -static void nvme_setup_flush(struct nvme_ns *ns, struct nvme_command *cmnd) -{ - memset(cmnd, 0, sizeof(*cmnd)); - cmnd->common.opcode = nvme_cmd_flush; - cmnd->common.nsid = cpu_to_le32(ns->ns_id); -} - -static void nvme_setup_rw(struct nvme_ns *ns, struct request *req, - struct nvme_command *cmnd) -{ - u16 control = 0; - u32 dsmgmt = 0; - - if (req->cmd_flags & REQ_FUA) - control |= NVME_RW_FUA; - if (req->cmd_flags & (REQ_FAILFAST_DEV | REQ_RAHEAD)) - control |= NVME_RW_LR; - - if (req->cmd_flags & REQ_RAHEAD) - dsmgmt |= NVME_RW_DSM_FREQ_PREFETCH; - - memset(cmnd, 0, sizeof(*cmnd)); - cmnd->rw.opcode = (rq_data_dir(req) ? nvme_cmd_write : nvme_cmd_read); - cmnd->rw.command_id = req->tag; - cmnd->rw.nsid = cpu_to_le32(ns->ns_id); - cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req))); - cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1); - - if (ns->ms) { - switch (ns->pi_type) { - case NVME_NS_DPS_PI_TYPE3: - control |= NVME_RW_PRINFO_PRCHK_GUARD; - break; - case NVME_NS_DPS_PI_TYPE1: - case NVME_NS_DPS_PI_TYPE2: - control |= NVME_RW_PRINFO_PRCHK_GUARD | - NVME_RW_PRINFO_PRCHK_REF; - cmnd->rw.reftag = cpu_to_le32( - nvme_block_nr(ns, blk_rq_pos(req))); - break; - } - if (!blk_integrity_rq(req)) - control |= NVME_RW_PRINFO_PRACT; - } - - cmnd->rw.control = cpu_to_le16(control); - cmnd->rw.dsmgmt = cpu_to_le32(dsmgmt); -} - /* * NOTE: ns is NULL when called on the admin queue. */