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bh=A9T6du9sxukvLBvTrDzzy9owmsrvi3lkb2vYV1QBYOY=; b=i0OGwTa4oI9+5K5q9E6NOMgCCpjTZesLudtRzvAVDrrIB7szZVFSl2VVrywGZuc8Wv RihuyOKKQ87gnYlh42Lw2gcBJdBSx9OtApaBZsu3cbEwL1F6t3xabN1r4dsi1bZaE83N h8Sj0smC8gIrW0ivBY/0bhzWQK0iw64sZSdjejtY3edQdBara1sL3XmtNOJrc9QqODUF 0XibAHpXVquFzVCpE4O4nZK0SPG4yA12BhkN80nBC2+Ps5yL7kF6J9KLcAP22SYQoxkv WHpog2ANdjQhHTO7ylHLurOWa0LsBz25h4A+6ULz/V+uB5X3p/2pp4AFQQgvPm4y20w9 vIvg== X-Gm-Message-State: AOAM532ToKkV3Be4rgbpykBjbdJHGEj4i9lPOiwJ2TCX5Jv0mmeHoe2y GdAl6kAuarbksdFNNHi4ljhWTRxMPwdv5w== X-Google-Smtp-Source: ABdhPJyBClL+QlSbZheygKXeh2SNz8CEus6Vc/7EUHKdQ3zChpIh+fkRnF8LHfafyU/Cd6K9kCpF8g== X-Received: by 2002:a63:3714:: with SMTP id e20mr12440910pga.410.1610712377348; Fri, 15 Jan 2021 04:06:17 -0800 (PST) From: Minwoo Im To: qemu-devel@nongnu.org, qemu-block@nongnu.org Subject: [RFC PATCH 1/5] hw/block/nvme: add controller id parameter Date: Fri, 15 Jan 2021 21:05:54 +0900 Message-Id: <20210115120558.29313-2-minwoo.im.dev@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210115120558.29313-1-minwoo.im.dev@gmail.com> References: <20210115120558.29313-1-minwoo.im.dev@gmail.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::536; envelope-from=minwoo.im.dev@gmail.com; helo=mail-pg1-x536.google.com 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: Keith Busch , Klaus Jensen , Minwoo Im , Kevin Wolf , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" There is Contrller ID field in Identify Controller data structure and nvme device has never set this field, 0 by default. Added a parameter for controller identifier in a NVM subsystem. This is reflected to Identify Controller data structrue of the controller. This parameter is helpful when a user wants to set up multi-controller in a NVM subsystem. Signed-off-by: Minwoo Im --- hw/block/nvme.c | 10 ++++++++++ hw/block/nvme.h | 1 + 2 files changed, 11 insertions(+) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index cf0fe28fe6eb..132e61c0ee7b 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -23,6 +23,7 @@ * max_ioqpairs=3D, \ * aerl=3D, aer_max_queued=3D, \ * mdts=3D,zoned.append_size_limit=3D \ + * cntlid=3D * -device nvme-ns,drive=3D,bus=3D,nsid=3D,\ * zoned=3D * @@ -50,6 +51,12 @@ * completion when there are no outstanding AERs. When the maximum numbe= r of * enqueued events are reached, subsequent events will be dropped. * + * - `cntlid` + * NVM subsystem unique controller identifier (default: 0). This proper= ty + * is used if a user wants to set up multi-controller in a NVM subsystem. + * This value will be reported through Identify Controller data structure + * with a field named CNTLID[79:78]. + * * - `zoned.append_size_limit` * The maximum I/O size in bytes that is allowed in Zone Append command. * The default is 128KiB. Since internally this this value is maintained= as @@ -4275,6 +4282,8 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pc= i_dev) =20 n->bar.vs =3D NVME_SPEC_VER; n->bar.intmc =3D n->bar.intms =3D 0; + + id->cntlid =3D n->params.cntlid; } =20 static void nvme_realize(PCIDevice *pci_dev, Error **errp) @@ -4345,6 +4354,7 @@ static Property nvme_props[] =3D { DEFINE_BLOCK_PROPERTIES(NvmeCtrl, namespace.blkconf), DEFINE_PROP_LINK("pmrdev", NvmeCtrl, pmrdev, TYPE_MEMORY_BACKEND, HostMemoryBackend *), + DEFINE_PROP_UINT32("cntlid", NvmeCtrl, params.cntlid, 0), DEFINE_PROP_STRING("serial", NvmeCtrl, params.serial), DEFINE_PROP_UINT32("cmb_size_mb", NvmeCtrl, params.cmb_size_mb, 0), DEFINE_PROP_UINT32("num_queues", NvmeCtrl, params.num_queues, 0), diff --git a/hw/block/nvme.h b/hw/block/nvme.h index b7fbcca39d9f..6aa9e89ac5a8 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -11,6 +11,7 @@ =20 typedef struct NvmeParams { char *serial; + uint32_t cntlid; uint32_t num_queues; /* deprecated since 5.1 */ uint32_t max_ioqpairs; uint16_t msix_qsize; --=20 2.17.1