From patchwork Wed Apr 15 05:51:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 1270896 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=irrelevant.dk Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 492BmS4jVJz9sSM for ; Wed, 15 Apr 2020 16:10:32 +1000 (AEST) Received: from localhost ([::1]:43808 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jObFk-0008VJ-Ix for incoming@patchwork.ozlabs.org; Wed, 15 Apr 2020 02:10:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35559) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jOaz1-0002r9-03 for qemu-devel@nongnu.org; Wed, 15 Apr 2020 01:53:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jOayy-0002qY-Uk for qemu-devel@nongnu.org; Wed, 15 Apr 2020 01:53:10 -0400 Received: from charlie.dont.surf ([128.199.63.193]:47570) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jOayv-0002Zr-18; Wed, 15 Apr 2020 01:53:05 -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 A1791BFD94; Wed, 15 Apr 2020 05:52:28 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v7 29/48] nvme: add request mapping helper Date: Wed, 15 Apr 2020 07:51:21 +0200 Message-Id: <20200415055140.466900-30-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 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Klaus Jensen Introduce the nvme_map helper to remove some noise in the main nvme_rw function. Signed-off-by: Klaus Jensen Reviewed-by: Maxim Levitsky --- hw/block/nvme.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 66f92f6f6f2d..1f4ce48b9cbb 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -359,6 +359,15 @@ static uint16_t nvme_dma_prp(NvmeCtrl *n, uint8_t *ptr, uint32_t len, return status; } +static uint16_t nvme_map(NvmeCtrl *n, NvmeCmd *cmd, QEMUSGList *qsg, + QEMUIOVector *iov, size_t len, NvmeRequest *req) +{ + uint64_t prp1 = le64_to_cpu(cmd->dptr.prp1); + uint64_t prp2 = le64_to_cpu(cmd->dptr.prp2); + + return nvme_map_prp(n, qsg, iov, prp1, prp2, len, req); +} + static void nvme_post_cqes(void *opaque) { NvmeCQueue *cq = opaque; @@ -546,8 +555,6 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns, NvmeCmd *cmd, NvmeRwCmd *rw = (NvmeRwCmd *)cmd; uint32_t nlb = le32_to_cpu(rw->nlb) + 1; uint64_t slba = le64_to_cpu(rw->slba); - uint64_t prp1 = le64_to_cpu(rw->dptr.prp1); - uint64_t prp2 = le64_to_cpu(rw->dptr.prp2); uint8_t lba_index = NVME_ID_NS_FLBAS_INDEX(ns->id_ns.flbas); uint8_t data_shift = ns->id_ns.lbaf[lba_index].ds; @@ -564,7 +571,7 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns, NvmeCmd *cmd, return NVME_LBA_RANGE | NVME_DNR; } - if (nvme_map_prp(n, &req->qsg, &req->iov, prp1, prp2, data_size, req)) { + if (nvme_map(n, cmd, &req->qsg, &req->iov, data_size, req)) { block_acct_invalid(blk_get_stats(n->conf.blk), acct); return NVME_INVALID_FIELD | NVME_DNR; }