From nobody Mon Feb 9 12:15:06 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1586930905; cv=none; d=zohomail.com; s=zohoarc; b=eyN/1RDmG2ntVcOXD6IerJEglIBvwCQZRbUySGjkQXeaRjJ+etxylQhD968uqurhKEv82HJq8LfChAo1BUY0+5IEtNf5Yma7ONUMrnYzCqCkzKqzdGGY3Zf4U6WJ5y4ZGHME6P9YbF+GEViNKH3WQGshk7x5R6PHW7BdZdrsEec= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1586930905; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=6q2dVl/YWGV54lTnKIwyXp54Ne4BsKos0ddXIurAhWg=; b=coidQnHP6LgRTISkJLhzgnW38Q6/k/fiSAiBDO0ENBNPnNF+Y0zLQ/8SzkgsNoT2k+HDgv5AMTtqVRGzF4vC7EUXZMLYPaofNoXBilQNHJeE2T4gBKy/4zL7RULrFWlTIInBuLeD4B0jLSIMbrq3TX+0IzN+O0cTCxDpEeLwRrQ= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1586930905649187.585658660813; Tue, 14 Apr 2020 23:08:25 -0700 (PDT) Received: from localhost ([::1]:43780 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jObDk-00060R-BJ for importer@patchew.org; Wed, 15 Apr 2020 02:08:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35638) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOaz2-0002vW-JN for qemu-devel@nongnu.org; Wed, 15 Apr 2020 01:53:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jOaz0-0002s8-N8 for qemu-devel@nongnu.org; Wed, 15 Apr 2020 01:53:12 -0400 Received: from charlie.dont.surf ([128.199.63.193]:47576) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jOayw-0002ad-2X; Wed, 15 Apr 2020 01:53:06 -0400 Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by charlie.dont.surf (Postfix) with ESMTPSA id 7AE27BFDAE; Wed, 15 Apr 2020 05:52:30 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v7 34/48] nvme: refactor NvmeRequest Date: Wed, 15 Apr 2020 07:51:26 +0200 Message-Id: <20200415055140.466900-35-its@irrelevant.dk> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200415055140.466900-1-its@irrelevant.dk> References: <20200415055140.466900-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 128.199.63.193 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Beata Michalska , Klaus Jensen , qemu-devel@nongnu.org, Max Reitz , Klaus Jensen , Keith Busch , Javier Gonzalez , Maxim Levitsky Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Klaus Jensen Add a reference to the NvmeNamespace and move clearing of the structure from "clear before use" to "clear after use". Signed-off-by: Klaus Jensen --- hw/block/nvme.c | 38 +++++++++++++++++++++----------------- hw/block/nvme.h | 1 + 2 files changed, 22 insertions(+), 17 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 94d42046149e..a7c5f93fc545 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -159,6 +159,12 @@ static void nvme_irq_deassert(NvmeCtrl *n, NvmeCQueue = *cq) } } =20 +static void nvme_req_clear(NvmeRequest *req) +{ + req->ns =3D NULL; + memset(&req->cqe, 0x0, sizeof(req->cqe)); +} + static uint16_t nvme_map_addr_cmb(NvmeCtrl *n, QEMUIOVector *iov, hwaddr a= ddr, size_t len) { @@ -404,6 +410,7 @@ static void nvme_post_cqes(void *opaque) nvme_inc_cq_tail(cq); pci_dma_write(&n->parent_obj, addr, (void *)&req->cqe, sizeof(req->cqe)); + nvme_req_clear(req); QTAILQ_INSERT_TAIL(&sq->req_list, req, entry); } if (cq->tail !=3D cq->head) { @@ -513,10 +520,10 @@ static inline uint16_t nvme_check_mdts(NvmeCtrl *n, s= ize_t len, return NVME_SUCCESS; } =20 -static inline uint16_t nvme_check_bounds(NvmeCtrl *n, NvmeNamespace *ns, - uint64_t slba, uint32_t nlb, - NvmeRequest *req) +static inline uint16_t nvme_check_bounds(NvmeCtrl *n, uint64_t slba, + uint32_t nlb, NvmeRequest *req) { + NvmeNamespace *ns =3D req->ns; uint64_t nsze =3D le64_to_cpu(ns->id_ns.nsze); =20 if (unlikely(UINT64_MAX - slba < nlb || slba + nlb > nsze)) { @@ -554,8 +561,7 @@ static void nvme_rw_cb(void *opaque, int ret) nvme_enqueue_req_completion(cq, req); } =20 -static uint16_t nvme_flush(NvmeCtrl *n, NvmeNamespace *ns, NvmeCmd *cmd, - NvmeRequest *req) +static uint16_t nvme_flush(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req) { block_acct_start(blk_get_stats(n->conf.blk), &req->acct, 0, BLOCK_ACCT_FLUSH); @@ -564,10 +570,10 @@ static uint16_t nvme_flush(NvmeCtrl *n, NvmeNamespace= *ns, NvmeCmd *cmd, return NVME_NO_COMPLETE; } =20 -static uint16_t nvme_write_zeroes(NvmeCtrl *n, NvmeNamespace *ns, NvmeCmd = *cmd, - NvmeRequest *req) +static uint16_t nvme_write_zeroes(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *= req) { NvmeRwCmd *rw =3D (NvmeRwCmd *)cmd; + NvmeNamespace *ns =3D req->ns; const uint8_t lba_index =3D NVME_ID_NS_FLBAS_INDEX(ns->id_ns.flbas); const uint8_t data_shift =3D ns->id_ns.lbaf[lba_index].ds; uint64_t slba =3D le64_to_cpu(rw->slba); @@ -578,7 +584,7 @@ static uint16_t nvme_write_zeroes(NvmeCtrl *n, NvmeName= space *ns, NvmeCmd *cmd, =20 trace_nvme_dev_write_zeroes(nvme_cid(req), slba, nlb); =20 - status =3D nvme_check_bounds(n, ns, slba, nlb, req); + status =3D nvme_check_bounds(n, slba, nlb, req); if (status) { return status; } @@ -590,10 +596,10 @@ static uint16_t nvme_write_zeroes(NvmeCtrl *n, NvmeNa= mespace *ns, NvmeCmd *cmd, return NVME_NO_COMPLETE; } =20 -static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns, NvmeCmd *cmd, - NvmeRequest *req) +static uint16_t nvme_rw(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req) { NvmeRwCmd *rw =3D (NvmeRwCmd *)cmd; + NvmeNamespace *ns =3D req->ns; uint32_t nlb =3D le32_to_cpu(rw->nlb) + 1; uint64_t slba =3D le64_to_cpu(rw->slba); =20 @@ -613,7 +619,7 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns,= NvmeCmd *cmd, return status; } =20 - status =3D nvme_check_bounds(n, ns, slba, nlb, req); + status =3D nvme_check_bounds(n, slba, nlb, req); if (status) { block_acct_invalid(blk_get_stats(n->conf.blk), acct); return status; @@ -647,7 +653,6 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns,= NvmeCmd *cmd, =20 static uint16_t nvme_io_cmd(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req) { - NvmeNamespace *ns; uint32_t nsid =3D le32_to_cpu(cmd->nsid); =20 trace_nvme_dev_io_cmd(nvme_cid(req), nsid, le16_to_cpu(req->sq->sqid), @@ -658,15 +663,15 @@ static uint16_t nvme_io_cmd(NvmeCtrl *n, NvmeCmd *cmd= , NvmeRequest *req) return NVME_INVALID_NSID | NVME_DNR; } =20 - ns =3D &n->namespaces[nsid - 1]; + req->ns =3D &n->namespaces[nsid - 1]; switch (cmd->opcode) { case NVME_CMD_FLUSH: - return nvme_flush(n, ns, cmd, req); + return nvme_flush(n, cmd, req); case NVME_CMD_WRITE_ZEROES: - return nvme_write_zeroes(n, ns, cmd, req); + return nvme_write_zeroes(n, cmd, req); case NVME_CMD_WRITE: case NVME_CMD_READ: - return nvme_rw(n, ns, cmd, req); + return nvme_rw(n, cmd, req); default: trace_nvme_dev_err_invalid_opc(cmd->opcode); return NVME_INVALID_OPCODE | NVME_DNR; @@ -1463,7 +1468,6 @@ static void nvme_process_sq(void *opaque) req =3D QTAILQ_FIRST(&sq->req_list); QTAILQ_REMOVE(&sq->req_list, req, entry); QTAILQ_INSERT_TAIL(&sq->out_req_list, req, entry); - memset(&req->cqe, 0, sizeof(req->cqe)); req->cqe.cid =3D cmd.cid; =20 status =3D sq->sqid ? nvme_io_cmd(n, &cmd, req) : diff --git a/hw/block/nvme.h b/hw/block/nvme.h index a25568723d0d..11a42fa213ab 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -29,6 +29,7 @@ typedef struct NvmeAsyncEvent { =20 typedef struct NvmeRequest { struct NvmeSQueue *sq; + struct NvmeNamespace *ns; BlockAIOCB *aiocb; uint16_t status; NvmeCqe cqe; --=20 2.26.0