From patchwork Mon Jul 20 11:37:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 277711 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D0DDC433E4 for ; Mon, 20 Jul 2020 11:42:16 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 68A362176B for ; Mon, 20 Jul 2020 11:42:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=irrelevant.dk header.i=@irrelevant.dk header.b="ReUC2jk4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 68A362176B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=irrelevant.dk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57754 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jxUBT-00055g-LY for qemu-devel@archiver.kernel.org; Mon, 20 Jul 2020 07:42:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37294) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jxU7R-0007M5-7t; Mon, 20 Jul 2020 07:38:05 -0400 Received: from charlie.dont.surf ([128.199.63.193]:46878) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jxU7O-0005Al-AO; Mon, 20 Jul 2020 07:38:04 -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 4E585BFAB3; Mon, 20 Jul 2020 11:37:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=irrelevant.dk; s=default; t=1595245079; bh=+tWOIeXB0ZO5Ihx+AnxRD0s9Xn4zPdaK6mml9KOBePY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ReUC2jk4agOh0Mp4OnMjL4i9sQnXcTrixD1gNvSFjDK8Uo3LE2aT16rZ16qzBi1VT xV0XUAKjc66UCycZgi1YQ4WLlmh5CdUyZVpXTDVMZNZicdTTdzTSxtu82dsVuiIkug Xf8uOrtQnpVDRe324u/TarOSXH728oINT0YvXmmFQ4UOo5+6m1L9cRD5CgAPQmCYb2 EHJ52tBTC5vcLenktEDf8YzZJc3iYfEAe1SpEdsuQi7VgD/WeYol6JUQr9/9WzQLRE T/GJ5ye/hoctDTEno/hLmqhDiKgF7Eo4spNthHnUrsGl96CSuti2Swxy1rXisSOa5s gn2aojqgMqvzQ== From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH 07/16] hw/block/nvme: add request mapping helper Date: Mon, 20 Jul 2020 13:37:39 +0200 Message-Id: <20200720113748.322965-8-its@irrelevant.dk> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200720113748.322965-1-its@irrelevant.dk> References: <20200720113748.322965-1-its@irrelevant.dk> MIME-Version: 1.0 Received-SPF: pass client-ip=128.199.63.193; envelope-from=its@irrelevant.dk; helo=charlie.dont.surf X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/20 07:37:55 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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 , qemu-block@nongnu.org, Klaus Jensen , Max Reitz , Keith Busch , Klaus Jensen , Maxim Levitsky Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.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 f1e04608804b..68c33a11c144 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -413,6 +413,15 @@ 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, 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, &req->qsg, &req->iov, prp1, prp2, len, req); +} + static void nvme_post_cqes(void *opaque) { NvmeCQueue *cq = opaque; @@ -600,8 +609,6 @@ 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; @@ -618,7 +625,7 @@ 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, data_size, req)) { block_acct_invalid(blk_get_stats(n->conf.blk), acct); return NVME_INVALID_FIELD | NVME_DNR; }