From patchwork Mon Sep 7 11:08:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 274403 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=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=ham 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 E2023C43461 for ; Mon, 7 Sep 2020 11:15:52 +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 74436206E6 for ; Mon, 7 Sep 2020 11:15:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="K8a0EWPa" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 74436206E6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52862 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kFF7n-0003qP-I7 for qemu-devel@archiver.kernel.org; Mon, 07 Sep 2020 07:15:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58614) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kFF23-0001uy-LB for qemu-devel@nongnu.org; Mon, 07 Sep 2020 07:09:55 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:59551 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kFF21-0007sH-QT for qemu-devel@nongnu.org; Mon, 07 Sep 2020 07:09:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599476993; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lRuhktsTR3pRXfEZU+LhEedgEn/X4rqYqpI6TCkcoOQ=; b=K8a0EWPaWuZ9LJz/Np/dRRMJPeckz5Z08adVFp5gWRFB5+cyQ6OCJmfUkr6jLy2WDl0QHe aatS1Q1zN7TklZPb+qmwiyLfZw+lzcT50v5UBBxSJMiv4B9vvkTrYtGN1ROf5moJMt3KPa blyGyZ9ZHYuSntjqy5OQA0RDJtm6WoY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-301-WiZ8oIitM4m0TToLaKW2Og-1; Mon, 07 Sep 2020 07:09:49 -0400 X-MC-Unique: WiZ8oIitM4m0TToLaKW2Og-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 3756E1DDEC; Mon, 7 Sep 2020 11:09:48 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-114-154.ams2.redhat.com [10.36.114.154]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4226D7E43B; Mon, 7 Sep 2020 11:09:47 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PULL 05/64] block/nvme: Define INDEX macros to ease code review Date: Mon, 7 Sep 2020 13:08:37 +0200 Message-Id: <20200907110936.261684-6-kwolf@redhat.com> In-Reply-To: <20200907110936.261684-1-kwolf@redhat.com> References: <20200907110936.261684-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0.002 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.120; envelope-from=kwolf@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/07 02:54:37 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Philippe Mathieu-Daudé Use definitions instead of '0' or '1' indexes. Also this will be useful when using multi-queues later. Reviewed-by: Stefan Hajnoczi Reviewed-by: Stefano Garzarella Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20200821195359.1285345-5-philmd@redhat.com> Signed-off-by: Kevin Wolf --- block/nvme.c | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) diff --git a/block/nvme.c b/block/nvme.c index ca8b039f4f..488d4ddb3b 100644 --- a/block/nvme.c +++ b/block/nvme.c @@ -103,6 +103,9 @@ typedef volatile struct { QEMU_BUILD_BUG_ON(offsetof(NVMeRegs, doorbells) != 0x1000); +#define INDEX_ADMIN 0 +#define INDEX_IO(n) (1 + n) + struct BDRVNVMeState { AioContext *aio_context; QEMUVFIOState *vfio; @@ -531,7 +534,7 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp) } cmd.dptr.prp1 = cpu_to_le64(iova); - if (nvme_cmd_sync(bs, s->queues[0], &cmd)) { + if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) { error_setg(errp, "Failed to identify controller"); goto out; } @@ -555,7 +558,7 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp) cmd.cdw10 = 0; cmd.nsid = cpu_to_le32(namespace); - if (nvme_cmd_sync(bs, s->queues[0], &cmd)) { + if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) { error_setg(errp, "Failed to identify namespace"); goto out; } @@ -644,7 +647,7 @@ static bool nvme_add_io_queue(BlockDriverState *bs, Error **errp) .cdw10 = cpu_to_le32(((queue_size - 1) << 16) | (n & 0xFFFF)), .cdw11 = cpu_to_le32(0x3), }; - if (nvme_cmd_sync(bs, s->queues[0], &cmd)) { + if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) { error_setg(errp, "Failed to create io queue [%d]", n); nvme_free_queue_pair(q); return false; @@ -655,7 +658,7 @@ static bool nvme_add_io_queue(BlockDriverState *bs, Error **errp) .cdw10 = cpu_to_le32(((queue_size - 1) << 16) | (n & 0xFFFF)), .cdw11 = cpu_to_le32(0x1 | (n << 16)), }; - if (nvme_cmd_sync(bs, s->queues[0], &cmd)) { + if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) { error_setg(errp, "Failed to create io queue [%d]", n); nvme_free_queue_pair(q); return false; @@ -739,16 +742,18 @@ static int nvme_init(BlockDriverState *bs, const char *device, int namespace, /* Set up admin queue. */ s->queues = g_new(NVMeQueuePair *, 1); - s->queues[0] = nvme_create_queue_pair(bs, 0, NVME_QUEUE_SIZE, errp); - if (!s->queues[0]) { + s->queues[INDEX_ADMIN] = nvme_create_queue_pair(bs, 0, + NVME_QUEUE_SIZE, + errp); + if (!s->queues[INDEX_ADMIN]) { ret = -EINVAL; goto out; } s->nr_queues = 1; QEMU_BUILD_BUG_ON(NVME_QUEUE_SIZE & 0xF000); s->regs->aqa = cpu_to_le32((NVME_QUEUE_SIZE << 16) | NVME_QUEUE_SIZE); - s->regs->asq = cpu_to_le64(s->queues[0]->sq.iova); - s->regs->acq = cpu_to_le64(s->queues[0]->cq.iova); + s->regs->asq = cpu_to_le64(s->queues[INDEX_ADMIN]->sq.iova); + s->regs->acq = cpu_to_le64(s->queues[INDEX_ADMIN]->cq.iova); /* After setting up all control registers we can enable device now. */ s->regs->cc = cpu_to_le32((ctz32(NVME_CQ_ENTRY_BYTES) << 20) | @@ -839,7 +844,7 @@ static int nvme_enable_disable_write_cache(BlockDriverState *bs, bool enable, .cdw11 = cpu_to_le32(enable ? 0x01 : 0x00), }; - ret = nvme_cmd_sync(bs, s->queues[0], &cmd); + ret = nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd); if (ret) { error_setg(errp, "Failed to configure NVMe write cache"); } @@ -1056,7 +1061,7 @@ static coroutine_fn int nvme_co_prw_aligned(BlockDriverState *bs, { int r; BDRVNVMeState *s = bs->opaque; - NVMeQueuePair *ioq = s->queues[1]; + NVMeQueuePair *ioq = s->queues[INDEX_IO(0)]; NVMeRequest *req; uint32_t cdw12 = (((bytes >> s->blkshift) - 1) & 0xFFFF) | @@ -1171,7 +1176,7 @@ static coroutine_fn int nvme_co_pwritev(BlockDriverState *bs, static coroutine_fn int nvme_co_flush(BlockDriverState *bs) { BDRVNVMeState *s = bs->opaque; - NVMeQueuePair *ioq = s->queues[1]; + NVMeQueuePair *ioq = s->queues[INDEX_IO(0)]; NVMeRequest *req; NvmeCmd cmd = { .opcode = NVME_CMD_FLUSH, @@ -1202,7 +1207,7 @@ static coroutine_fn int nvme_co_pwrite_zeroes(BlockDriverState *bs, BdrvRequestFlags flags) { BDRVNVMeState *s = bs->opaque; - NVMeQueuePair *ioq = s->queues[1]; + NVMeQueuePair *ioq = s->queues[INDEX_IO(0)]; NVMeRequest *req; uint32_t cdw12 = ((bytes >> s->blkshift) - 1) & 0xFFFF; @@ -1255,7 +1260,7 @@ static int coroutine_fn nvme_co_pdiscard(BlockDriverState *bs, int bytes) { BDRVNVMeState *s = bs->opaque; - NVMeQueuePair *ioq = s->queues[1]; + NVMeQueuePair *ioq = s->queues[INDEX_IO(0)]; NVMeRequest *req; NvmeDsmRange *buf; QEMUIOVector local_qiov; @@ -1398,7 +1403,7 @@ static void nvme_aio_unplug(BlockDriverState *bs) BDRVNVMeState *s = bs->opaque; assert(s->plugged); s->plugged = false; - for (i = 1; i < s->nr_queues; i++) { + for (i = INDEX_IO(0); i < s->nr_queues; i++) { NVMeQueuePair *q = s->queues[i]; qemu_mutex_lock(&q->lock); nvme_kick(q);