From patchwork Mon Mar 16 14:29:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 1255661 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 48h2sR2LNXz9sR4 for ; Tue, 17 Mar 2020 04:11:55 +1100 (AEDT) Received: from localhost ([::1]:43230 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jDtHN-0007UJ-6o for incoming@patchwork.ozlabs.org; Mon, 16 Mar 2020 13:11:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54727) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jDqlb-0000cO-EQ for qemu-devel@nongnu.org; Mon, 16 Mar 2020 10:30:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jDqlZ-00072R-Ij for qemu-devel@nongnu.org; Mon, 16 Mar 2020 10:30:54 -0400 Received: from charlie.dont.surf ([128.199.63.193]:48848) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jDqlT-00045b-R1; Mon, 16 Mar 2020 10:30:47 -0400 Received: from apples.local (80-62-117-52-mobile.dk.customer.tdc.net [80.62.117.52]) by charlie.dont.surf (Postfix) with ESMTPSA id 342B6BFAA8; Mon, 16 Mar 2020 14:29:55 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v6 39/42] pci: allocate pci id for nvme Date: Mon, 16 Mar 2020 07:29:25 -0700 Message-Id: <20200316142928.153431-40-its@irrelevant.dk> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200316142928.153431-1-its@irrelevant.dk> References: <20200316142928.153431-1-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 , 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 The emulated nvme device (hw/block/nvme.c) is currently using an internal Intel device id. Prepare to change that by allocating a device id under the 1b36 (Red Hat, Inc.) vendor id. Signed-off-by: Klaus Jensen Acked-by: Keith Busch Reviewed-by: Maxim Levitsky --- MAINTAINERS | 1 + docs/specs/nvme.txt | 25 +++++++++++++++++++++++++ docs/specs/pci-ids.txt | 1 + include/hw/pci/pci.h | 1 + 4 files changed, 28 insertions(+) create mode 100644 docs/specs/nvme.txt diff --git a/MAINTAINERS b/MAINTAINERS index 32867bc63670..fcffe790ef40 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1698,6 +1698,7 @@ L: qemu-block@nongnu.org S: Supported F: hw/block/nvme* F: tests/qtest/nvme-test.c +F: docs/specs/nvme.txt megasas M: Hannes Reinecke diff --git a/docs/specs/nvme.txt b/docs/specs/nvme.txt new file mode 100644 index 000000000000..b51552cb5c3f --- /dev/null +++ b/docs/specs/nvme.txt @@ -0,0 +1,25 @@ +NVM Express Controller +====================== + +The nvme device (-device nvme) emulates an NVM Express Controller. + + +Reference Specifications +------------------------ + +The device currently implements most mandatory features of NVMe v1.3d, see + + https://nvmexpress.org/resources/specifications/ + +for the specification. + + +Known issues +------------ + +* The device does not have any way of storing persistent state, so minor parts + of the implementation is in violation of the specification: + - The accounting numbers in the SMART/Health are reset across power cycles + +* Interrupt Coalescing is not supported and is disabled by default in volation + of the specification. diff --git a/docs/specs/pci-ids.txt b/docs/specs/pci-ids.txt index 4d53e5c7d9d5..abbdbca6be38 100644 --- a/docs/specs/pci-ids.txt +++ b/docs/specs/pci-ids.txt @@ -63,6 +63,7 @@ PCI devices (other than virtio): 1b36:000b PCIe Expander Bridge (-device pxb-pcie) 1b36:000d PCI xhci usb host adapter 1b36:000f mdpy (mdev sample device), linux/samples/vfio-mdev/mdpy.c +1b36:0010 PCIe NVMe device (-device nvme) All these devices are documented in docs/specs. diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index da9057b8db97..92231885bc23 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -104,6 +104,7 @@ extern bool pci_available; #define PCI_DEVICE_ID_REDHAT_XHCI 0x000d #define PCI_DEVICE_ID_REDHAT_PCIE_BRIDGE 0x000e #define PCI_DEVICE_ID_REDHAT_MDPY 0x000f +#define PCI_DEVICE_ID_REDHAT_NVME 0x0010 #define PCI_DEVICE_ID_REDHAT_QXL 0x0100 #define FMT_PCIBUS PRIx64