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23 Sep 2020 11:21:01 -0700 From: Dmitry Fomichev To: Keith Busch , Klaus Jensen , Kevin Wolf , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Maxim Levitsky , Fam Zheng Subject: [PATCH v4 07/14] hw/block/nvme: Make Zoned NS Command Set definitions Date: Thu, 24 Sep 2020 03:20:14 +0900 Message-Id: <20200923182021.3724-8-dmitry.fomichev@wdc.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200923182021.3724-1-dmitry.fomichev@wdc.com> References: <20200923182021.3724-1-dmitry.fomichev@wdc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=68.232.143.124; envelope-from=prvs=5287de305=dmitry.fomichev@wdc.com; helo=esa2.hgst.iphmx.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/23 14:20:48 X-ACL-Warn: Detected OS = FreeBSD 9.x or newer [fuzzy] X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-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: Niklas Cassel , Damien Le Moal , qemu-block@nongnu.org, Dmitry Fomichev , qemu-devel@nongnu.org, Alistair Francis , Matias Bjorling Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Define values and structures that are needed to support Zoned Namespace Command Set (NVMe TP 4053) in PCI NVMe controller emulator. All new protocol definitions are located in include/block/nvme.h and everything added that is specific to this implementation is kept in hw/block/nvme.h. In order to improve scalability, all open, closed and full zones are organized in separate linked lists. Consequently, almost all zone operations don't require scanning of the entire zone array (which potentially can be quite large) - it is only necessary to enumerate one or more zone lists. Zone lists are designed to be position-independent as they can be persisted to the backing file as a part of zone metadata. NvmeZoneList struct defined in this patch serves as a head of every zone list. NvmeZone structure encapsulates NvmeZoneDescriptor defined in Zoned Command Set specification and adds a few more fields that are internal to this implementation. Signed-off-by: Niklas Cassel Signed-off-by: Hans Holmberg Signed-off-by: Ajay Joshi Signed-off-by: Matias Bjorling Signed-off-by: Shin'ichiro Kawasaki Signed-off-by: Alexey Bogoslavsky Signed-off-by: Dmitry Fomichev --- hw/block/nvme.h | 124 +++++++++++++++++++++++++++++++++++++++++++ include/block/nvme.h | 107 +++++++++++++++++++++++++++++++++++++ 2 files changed, 231 insertions(+) diff --git a/hw/block/nvme.h b/hw/block/nvme.h index 71e4344471..d9f307f0ed 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -3,6 +3,9 @@ #include "block/nvme.h" +#define NVME_DEFAULT_ZONE_SIZE 128 /* MiB */ +#define NVME_DEFAULT_MAX_ZA_SIZE 128 /* KiB */ + typedef struct NvmeParams { char *serial; uint32_t num_queues; /* deprecated since 5.1 */ @@ -12,6 +15,13 @@ typedef struct NvmeParams { uint8_t aerl; uint32_t aer_max_queued; uint8_t mdts; + + bool zoned; + bool cross_zone_read; + uint8_t fill_pattern; + uint32_t zasl_kb; + uint64_t zone_size_mb; + uint64_t zone_capacity_mb; } NvmeParams; typedef struct NvmeAsyncEvent { @@ -24,6 +34,7 @@ typedef struct NvmeRequest { struct NvmeNamespace *ns; BlockAIOCB *aiocb; uint16_t status; + int64_t fill_ofs; NvmeCqe cqe; NvmeCmd cmd; BlockAcctCookie acct; @@ -62,12 +73,36 @@ typedef struct NvmeCQueue { QTAILQ_HEAD(, NvmeRequest) req_list; } NvmeCQueue; +typedef struct NvmeZone { + NvmeZoneDescr d; + uint64_t w_ptr; + uint32_t next; + uint32_t prev; + uint8_t rsvd80[8]; +} NvmeZone; + +#define NVME_ZONE_LIST_NIL UINT_MAX + +typedef struct NvmeZoneList { + uint32_t head; + uint32_t tail; + uint32_t size; + uint8_t rsvd12[4]; +} NvmeZoneList; + typedef struct NvmeNamespace { NvmeIdNs id_ns; uint32_t nsid; uint8_t csi; bool attached; QemuUUID uuid; + + NvmeIdNsZoned *id_ns_zoned; + NvmeZone *zone_array; + NvmeZoneList *exp_open_zones; + NvmeZoneList *imp_open_zones; + NvmeZoneList *closed_zones; + NvmeZoneList *full_zones; } NvmeNamespace; static inline NvmeLBAF *nvme_ns_lbaf(NvmeNamespace *ns) @@ -126,6 +161,15 @@ typedef struct NvmeCtrl { QTAILQ_HEAD(, NvmeAsyncEvent) aer_queue; int aer_queued; + int zone_file_fd; + uint32_t num_zones; + uint64_t zone_size; + uint64_t zone_capacity; + uint64_t zone_array_size; + uint32_t zone_size_log2; + uint32_t zasl_bs; + uint8_t zasl; + NvmeNamespace *namespaces; NvmeSQueue **sq; NvmeCQueue **cq; @@ -141,4 +185,84 @@ static inline uint64_t nvme_ns_nlbas(NvmeCtrl *n, NvmeNamespace *ns) return n->ns_size >> nvme_ns_lbads(ns); } +static inline uint8_t nvme_get_zone_state(NvmeZone *zone) +{ + return zone->d.zs >> 4; +} + +static inline void nvme_set_zone_state(NvmeZone *zone, enum NvmeZoneState state) +{ + zone->d.zs = state << 4; +} + +static inline uint64_t nvme_zone_rd_boundary(NvmeCtrl *n, NvmeZone *zone) +{ + return zone->d.zslba + n->zone_size; +} + +static inline uint64_t nvme_zone_wr_boundary(NvmeZone *zone) +{ + return zone->d.zslba + zone->d.zcap; +} + +static inline bool nvme_wp_is_valid(NvmeZone *zone) +{ + uint8_t st = nvme_get_zone_state(zone); + + return st != NVME_ZONE_STATE_FULL && + st != NVME_ZONE_STATE_READ_ONLY && + st != NVME_ZONE_STATE_OFFLINE; +} + +/* + * Initialize a zone list head. + */ +static inline void nvme_init_zone_list(NvmeZoneList *zl) +{ + zl->head = NVME_ZONE_LIST_NIL; + zl->tail = NVME_ZONE_LIST_NIL; + zl->size = 0; +} + +/* + * Initialize the number of entries contained in a zone list. + */ +static inline uint32_t nvme_zone_list_size(NvmeZoneList *zl) +{ + return zl->size; +} + +/* + * Check if the zone is not currently included into any zone list. + */ +static inline bool nvme_zone_not_in_list(NvmeZone *zone) +{ + return (bool)(zone->prev == 0 && zone->next == 0); +} + +/* + * Return the zone at the head of zone list or NULL if the list is empty. + */ +static inline NvmeZone *nvme_peek_zone_head(NvmeNamespace *ns, NvmeZoneList *zl) +{ + if (zl->head == NVME_ZONE_LIST_NIL) { + return NULL; + } + return &ns->zone_array[zl->head]; +} + +/* + * Return the next zone in the list. + */ +static inline NvmeZone *nvme_next_zone_in_list(NvmeNamespace *ns, NvmeZone *z, + NvmeZoneList *zl) +{ + assert(!nvme_zone_not_in_list(z)); + + if (z->next == NVME_ZONE_LIST_NIL) { + return NULL; + } + return &ns->zone_array[z->next]; +} + #endif /* HW_NVME_H */ diff --git a/include/block/nvme.h b/include/block/nvme.h index f8356394f5..ced66cf4eb 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -488,6 +488,9 @@ enum NvmeIoCommands { NVME_CMD_COMPARE = 0x05, NVME_CMD_WRITE_ZEROES = 0x08, NVME_CMD_DSM = 0x09, + NVME_CMD_ZONE_MGMT_SEND = 0x79, + NVME_CMD_ZONE_MGMT_RECV = 0x7a, + NVME_CMD_ZONE_APPEND = 0x7d, }; typedef struct QEMU_PACKED NvmeDeleteQ { @@ -677,6 +680,7 @@ enum NvmeStatusCodes { NVME_SGL_DESCR_TYPE_INVALID = 0x0011, NVME_INVALID_USE_OF_CMB = 0x0012, NVME_CMD_SET_CMB_REJECTED = 0x002b, + NVME_INVALID_CMD_SET = 0x002c, NVME_LBA_RANGE = 0x0080, NVME_CAP_EXCEEDED = 0x0081, NVME_NS_NOT_READY = 0x0082, @@ -701,6 +705,14 @@ enum NvmeStatusCodes { NVME_CONFLICTING_ATTRS = 0x0180, NVME_INVALID_PROT_INFO = 0x0181, NVME_WRITE_TO_RO = 0x0182, + NVME_ZONE_BOUNDARY_ERROR = 0x01b8, + NVME_ZONE_FULL = 0x01b9, + NVME_ZONE_READ_ONLY = 0x01ba, + NVME_ZONE_OFFLINE = 0x01bb, + NVME_ZONE_INVALID_WRITE = 0x01bc, + NVME_ZONE_TOO_MANY_ACTIVE = 0x01bd, + NVME_ZONE_TOO_MANY_OPEN = 0x01be, + NVME_ZONE_INVAL_TRANSITION = 0x01bf, NVME_WRITE_FAULT = 0x0280, NVME_UNRECOVERED_READ = 0x0281, NVME_E2E_GUARD_ERROR = 0x0282, @@ -885,6 +897,11 @@ typedef struct QEMU_PACKED NvmeIdCtrl { uint8_t vs[1024]; } NvmeIdCtrl; +typedef struct NvmeIdCtrlZoned { + uint8_t zasl; + uint8_t rsvd1[4095]; +} NvmeIdCtrlZoned; + enum NvmeIdCtrlOacs { NVME_OACS_SECURITY = 1 << 0, NVME_OACS_FORMAT = 1 << 1, @@ -1009,6 +1026,12 @@ typedef struct QEMU_PACKED NvmeLBAF { uint8_t rp; } NvmeLBAF; +typedef struct QEMU_PACKED NvmeLBAFE { + uint64_t zsze; + uint8_t zdes; + uint8_t rsvd9[7]; +} NvmeLBAFE; + #define NVME_NSID_BROADCAST 0xffffffff typedef struct QEMU_PACKED NvmeIdNs { @@ -1063,10 +1086,24 @@ enum NvmeNsIdentifierType { enum NvmeCsi { NVME_CSI_NVM = 0x00, + NVME_CSI_ZONED = 0x02, }; #define NVME_SET_CSI(vec, csi) (vec |= (uint8_t)(1 << (csi))) +typedef struct QEMU_PACKED NvmeIdNsZoned { + uint16_t zoc; + uint16_t ozcs; + uint32_t mar; + uint32_t mor; + uint32_t rrl; + uint32_t frl; + uint8_t rsvd20[2796]; + NvmeLBAFE lbafe[16]; + uint8_t rsvd3072[768]; + uint8_t vs[256]; +} NvmeIdNsZoned; + /*Deallocate Logical Block Features*/ #define NVME_ID_NS_DLFEAT_GUARD_CRC(dlfeat) ((dlfeat) & 0x10) #define NVME_ID_NS_DLFEAT_WRITE_ZEROES(dlfeat) ((dlfeat) & 0x08) @@ -1098,6 +1135,71 @@ enum NvmeIdNsDps { DPS_FIRST_EIGHT = 8, }; +enum NvmeZoneAttr { + NVME_ZA_FINISHED_BY_CTLR = 1 << 0, + NVME_ZA_FINISH_RECOMMENDED = 1 << 1, + NVME_ZA_RESET_RECOMMENDED = 1 << 2, + NVME_ZA_ZD_EXT_VALID = 1 << 7, +}; + +typedef struct QEMU_PACKED NvmeZoneReportHeader { + uint64_t nr_zones; + uint8_t rsvd[56]; +} NvmeZoneReportHeader; + +enum NvmeZoneReceiveAction { + NVME_ZONE_REPORT = 0, + NVME_ZONE_REPORT_EXTENDED = 1, +}; + +enum NvmeZoneReportType { + NVME_ZONE_REPORT_ALL = 0, + NVME_ZONE_REPORT_EMPTY = 1, + NVME_ZONE_REPORT_IMPLICITLY_OPEN = 2, + NVME_ZONE_REPORT_EXPLICITLY_OPEN = 3, + NVME_ZONE_REPORT_CLOSED = 4, + NVME_ZONE_REPORT_FULL = 5, + NVME_ZONE_REPORT_READ_ONLY = 6, + NVME_ZONE_REPORT_OFFLINE = 7, +}; + +enum NvmeZoneType { + NVME_ZONE_TYPE_RESERVED = 0x00, + NVME_ZONE_TYPE_SEQ_WRITE = 0x02, +}; + +enum NvmeZoneSendAction { + NVME_ZONE_ACTION_RSD = 0x00, + NVME_ZONE_ACTION_CLOSE = 0x01, + NVME_ZONE_ACTION_FINISH = 0x02, + NVME_ZONE_ACTION_OPEN = 0x03, + NVME_ZONE_ACTION_RESET = 0x04, + NVME_ZONE_ACTION_OFFLINE = 0x05, + NVME_ZONE_ACTION_SET_ZD_EXT = 0x10, +}; + +typedef struct QEMU_PACKED NvmeZoneDescr { + uint8_t zt; + uint8_t zs; + uint8_t za; + uint8_t rsvd3[5]; + uint64_t zcap; + uint64_t zslba; + uint64_t wp; + uint8_t rsvd32[32]; +} NvmeZoneDescr; + +enum NvmeZoneState { + NVME_ZONE_STATE_RESERVED = 0x00, + NVME_ZONE_STATE_EMPTY = 0x01, + NVME_ZONE_STATE_IMPLICITLY_OPEN = 0x02, + NVME_ZONE_STATE_EXPLICITLY_OPEN = 0x03, + NVME_ZONE_STATE_CLOSED = 0x04, + NVME_ZONE_STATE_READ_ONLY = 0x0D, + NVME_ZONE_STATE_FULL = 0x0E, + NVME_ZONE_STATE_OFFLINE = 0x0F, +}; + static inline void _nvme_check_size(void) { QEMU_BUILD_BUG_ON(sizeof(NvmeBar) != 4096); @@ -1117,9 +1219,14 @@ static inline void _nvme_check_size(void) QEMU_BUILD_BUG_ON(sizeof(NvmeSmartLog) != 512); QEMU_BUILD_BUG_ON(sizeof(NvmeEffectsLog) != 4096); QEMU_BUILD_BUG_ON(sizeof(NvmeIdCtrl) != 4096); + QEMU_BUILD_BUG_ON(sizeof(NvmeIdCtrlZoned) != 4096); QEMU_BUILD_BUG_ON(sizeof(NvmeIdNsDescr) != 4); + QEMU_BUILD_BUG_ON(sizeof(NvmeLBAF) != 4); + QEMU_BUILD_BUG_ON(sizeof(NvmeLBAFE) != 16); QEMU_BUILD_BUG_ON(sizeof(NvmeIdNs) != 4096); + QEMU_BUILD_BUG_ON(sizeof(NvmeIdNsZoned) != 4096); QEMU_BUILD_BUG_ON(sizeof(NvmeSglDescriptor) != 16); QEMU_BUILD_BUG_ON(sizeof(NvmeIdNsDescr) != 4); + QEMU_BUILD_BUG_ON(sizeof(NvmeZoneDescr) != 64); } #endif