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Mon, 5 Oct 2020 15:43:45 +0000 (UTC) Received: from localhost (ovpn-112-117.ams2.redhat.com [10.36.112.117]) by smtp.corp.redhat.com (Postfix) with ESMTP id D88A45D9CC; Mon, 5 Oct 2020 15:43:44 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL v2 05/17] block/nvme: Use register definitions from 'block/nvme.h' Date: Mon, 5 Oct 2020 16:43:11 +0100 Message-Id: <20201005154323.31347-6-stefanha@redhat.com> In-Reply-To: <20201005154323.31347-1-stefanha@redhat.com> References: <20201005154323.31347-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/05 01:25:11 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.733, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-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 , Fam Zheng , Eduardo Habkost , qemu-block@nongnu.org, Max Reitz , Stefan Hajnoczi , Cleber Rosa , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Philippe Mathieu-Daudé Use the NVMe register definitions from "block/nvme.h" which ease a bit reviewing the code while matching the datasheet. Signed-off-by: Philippe Mathieu-Daudé Signed-off-by: Stefan Hajnoczi Message-Id: <20200922083821.578519-6-philmd@redhat.com> --- block/nvme.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/block/nvme.c b/block/nvme.c index bd82990b66..959569d262 100644 --- a/block/nvme.c +++ b/block/nvme.c @@ -718,22 +718,22 @@ static int nvme_init(BlockDriverState *bs, const char *device, int namespace, * Initialization". */ cap = le64_to_cpu(regs->cap); - if (!(cap & (1ULL << 37))) { + if (!NVME_CAP_CSS(cap)) { error_setg(errp, "Device doesn't support NVMe command set"); ret = -EINVAL; goto out; } - s->page_size = MAX(4096, 1 << (12 + ((cap >> 48) & 0xF))); - s->doorbell_scale = (4 << (((cap >> 32) & 0xF))) / sizeof(uint32_t); + s->page_size = MAX(4096, 1 << NVME_CAP_MPSMIN(cap)); + s->doorbell_scale = (4 << NVME_CAP_DSTRD(cap)) / sizeof(uint32_t); bs->bl.opt_mem_alignment = s->page_size; - timeout_ms = MIN(500 * ((cap >> 24) & 0xFF), 30000); + timeout_ms = MIN(500 * NVME_CAP_TO(cap), 30000); /* Reset device to get a clean state. */ regs->cc = cpu_to_le32(le32_to_cpu(regs->cc) & 0xFE); /* Wait for CSTS.RDY = 0. */ deadline = qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + timeout_ms * SCALE_MS; - while (le32_to_cpu(regs->csts) & 0x1) { + while (NVME_CSTS_RDY(le32_to_cpu(regs->csts))) { if (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) > deadline) { error_setg(errp, "Timeout while waiting for device to reset (%" PRId64 " ms)", @@ -761,18 +761,19 @@ static int nvme_init(BlockDriverState *bs, const char *device, int namespace, } s->nr_queues = 1; QEMU_BUILD_BUG_ON(NVME_QUEUE_SIZE & 0xF000); - regs->aqa = cpu_to_le32((NVME_QUEUE_SIZE << 16) | NVME_QUEUE_SIZE); + regs->aqa = cpu_to_le32((NVME_QUEUE_SIZE << AQA_ACQS_SHIFT) | + (NVME_QUEUE_SIZE << AQA_ASQS_SHIFT)); regs->asq = cpu_to_le64(s->queues[INDEX_ADMIN]->sq.iova); regs->acq = cpu_to_le64(s->queues[INDEX_ADMIN]->cq.iova); /* After setting up all control registers we can enable device now. */ - regs->cc = cpu_to_le32((ctz32(NVME_CQ_ENTRY_BYTES) << 20) | - (ctz32(NVME_SQ_ENTRY_BYTES) << 16) | - 0x1); + regs->cc = cpu_to_le32((ctz32(NVME_CQ_ENTRY_BYTES) << CC_IOCQES_SHIFT) | + (ctz32(NVME_SQ_ENTRY_BYTES) << CC_IOSQES_SHIFT) | + CC_EN_MASK); /* Wait for CSTS.RDY = 1. */ now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); deadline = now + timeout_ms * 1000000; - while (!(le32_to_cpu(regs->csts) & 0x1)) { + while (!NVME_CSTS_RDY(le32_to_cpu(regs->csts))) { if (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) > deadline) { error_setg(errp, "Timeout while waiting for device to start (%" PRId64 " ms)",