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Sun, 31 Mar 2024 12:30:46 -0700 (PDT) From: Minwoo Im To: Klaus Jensen , Keith Busch Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, Minwoo Im , Klaus Jensen Subject: [PATCH v2 1/4] hw/nvme: add Identify Endurance Group List Date: Mon, 1 Apr 2024 04:30:29 +0900 Message-Id: <20240331193032.5186-2-minwoo.im.dev@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240331193032.5186-1-minwoo.im.dev@gmail.com> References: <20240331193032.5186-1-minwoo.im.dev@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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::533; envelope-from=minwoo.im.dev@gmail.com; helo=mail-pg1-x533.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1711913534034100003 Content-Type: text/plain; charset="utf-8" From: Minwoo Im Commit 73064edfb864 ("hw/nvme: flexible data placement emulation") intorudced NVMe FDP feature to nvme-subsys and nvme-ctrl with a single endurance group #1 supported. This means that controller should return proper identify data to host with Identify Endurance Group List (CNS 19h). But, yes, only just for the endurance group #1. This patch allows host applications to ask for which endurance group is available and utilize FDP through that endurance group. Signed-off-by: Minwoo Im Reviewed-by: Klaus Jensen --- hw/nvme/ctrl.c | 22 ++++++++++++++++++++++ include/block/nvme.h | 1 + 2 files changed, 23 insertions(+) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index f026245d1e9e..cfe53a358871 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -5629,6 +5629,26 @@ static uint16_t nvme_identify_nslist_csi(NvmeCtrl *n= , NvmeRequest *req, return nvme_c2h(n, list, data_len, req); } =20 +static uint16_t nvme_endurance_group_list(NvmeCtrl *n, NvmeRequest *req) +{ + uint16_t list[NVME_CONTROLLER_LIST_SIZE] =3D {}; + uint16_t *nr_ids =3D &list[0]; + uint16_t *ids =3D &list[1]; + uint16_t endgid =3D le32_to_cpu(req->cmd.cdw11) & 0xffff; + + /* + * The current nvme-subsys only supports Endurance Group #1. + */ + if (!endgid) { + *nr_ids =3D 1; + ids[0] =3D 1; + } else { + *nr_ids =3D 0; + } + + return nvme_c2h(n, list, sizeof(list), req); +} + static uint16_t nvme_identify_ns_descr_list(NvmeCtrl *n, NvmeRequest *req) { NvmeNamespace *ns; @@ -5732,6 +5752,8 @@ static uint16_t nvme_identify(NvmeCtrl *n, NvmeReques= t *req) return nvme_identify_nslist(n, req, false); case NVME_ID_CNS_CS_NS_ACTIVE_LIST: return nvme_identify_nslist_csi(n, req, true); + case NVME_ID_CNS_ENDURANCE_GROUP_LIST: + return nvme_endurance_group_list(n, req); case NVME_ID_CNS_CS_NS_PRESENT_LIST: return nvme_identify_nslist_csi(n, req, false); case NVME_ID_CNS_NS_DESCR_LIST: diff --git a/include/block/nvme.h b/include/block/nvme.h index bb231d0b9ad0..7c77d38174a7 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -1074,6 +1074,7 @@ enum NvmeIdCns { NVME_ID_CNS_CTRL_LIST =3D 0x13, NVME_ID_CNS_PRIMARY_CTRL_CAP =3D 0x14, NVME_ID_CNS_SECONDARY_CTRL_LIST =3D 0x15, + NVME_ID_CNS_ENDURANCE_GROUP_LIST =3D 0x19, NVME_ID_CNS_CS_NS_PRESENT_LIST =3D 0x1a, NVME_ID_CNS_CS_NS_PRESENT =3D 0x1b, NVME_ID_CNS_IO_COMMAND_SET =3D 0x1c, --=20 2.34.1