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Diffstat (limited to 'hw/block/nvme-ns.h')
| -rw-r--r-- | hw/block/nvme-ns.h | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/hw/block/nvme-ns.h b/hw/block/nvme-ns.h deleted file mode 100644 index fb0a41f912..0000000000 --- a/hw/block/nvme-ns.h +++ /dev/null @@ -1,229 +0,0 @@ -/* - * QEMU NVM Express Virtual Namespace - * - * Copyright (c) 2019 CNEX Labs - * Copyright (c) 2020 Samsung Electronics - * - * Authors: - * Klaus Jensen <k.jensen@samsung.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See the - * COPYING file in the top-level directory. - * - */ - -#ifndef NVME_NS_H -#define NVME_NS_H - -#include "qemu/uuid.h" - -#define TYPE_NVME_NS "nvme-ns" -#define NVME_NS(obj) \ - OBJECT_CHECK(NvmeNamespace, (obj), TYPE_NVME_NS) - -typedef struct NvmeZone { - NvmeZoneDescr d; - uint64_t w_ptr; - QTAILQ_ENTRY(NvmeZone) entry; -} NvmeZone; - -typedef struct NvmeNamespaceParams { - bool detached; - bool shared; - uint32_t nsid; - QemuUUID uuid; - - uint16_t ms; - uint8_t mset; - uint8_t pi; - uint8_t pil; - - uint16_t mssrl; - uint32_t mcl; - uint8_t msrc; - - bool zoned; - bool cross_zone_read; - uint64_t zone_size_bs; - uint64_t zone_cap_bs; - uint32_t max_active_zones; - uint32_t max_open_zones; - uint32_t zd_extension_size; -} NvmeNamespaceParams; - -typedef struct NvmeNamespace { - DeviceState parent_obj; - BlockConf blkconf; - int32_t bootindex; - int64_t size; - int64_t mdata_offset; - NvmeIdNs id_ns; - const uint32_t *iocs; - uint8_t csi; - uint16_t status; - int attached; - - QTAILQ_ENTRY(NvmeNamespace) entry; - - NvmeIdNsZoned *id_ns_zoned; - NvmeZone *zone_array; - QTAILQ_HEAD(, NvmeZone) exp_open_zones; - QTAILQ_HEAD(, NvmeZone) imp_open_zones; - QTAILQ_HEAD(, NvmeZone) closed_zones; - QTAILQ_HEAD(, NvmeZone) full_zones; - uint32_t num_zones; - uint64_t zone_size; - uint64_t zone_capacity; - uint32_t zone_size_log2; - uint8_t *zd_extensions; - int32_t nr_open_zones; - int32_t nr_active_zones; - - NvmeNamespaceParams params; - - struct { - uint32_t err_rec; - } features; -} NvmeNamespace; - -static inline uint16_t nvme_ns_status(NvmeNamespace *ns) -{ - return ns->status; -} - -static inline uint32_t nvme_nsid(NvmeNamespace *ns) -{ - if (ns) { - return ns->params.nsid; - } - - return 0; -} - -static inline NvmeLBAF *nvme_ns_lbaf(NvmeNamespace *ns) -{ - NvmeIdNs *id_ns = &ns->id_ns; - return &id_ns->lbaf[NVME_ID_NS_FLBAS_INDEX(id_ns->flbas)]; -} - -static inline uint8_t nvme_ns_lbads(NvmeNamespace *ns) -{ - return nvme_ns_lbaf(ns)->ds; -} - -/* convert an LBA to the equivalent in bytes */ -static inline size_t nvme_l2b(NvmeNamespace *ns, uint64_t lba) -{ - return lba << nvme_ns_lbads(ns); -} - -static inline size_t nvme_lsize(NvmeNamespace *ns) -{ - return 1 << nvme_ns_lbads(ns); -} - -static inline uint16_t nvme_msize(NvmeNamespace *ns) -{ - return nvme_ns_lbaf(ns)->ms; -} - -static inline size_t nvme_m2b(NvmeNamespace *ns, uint64_t lba) -{ - return nvme_msize(ns) * lba; -} - -static inline bool nvme_ns_ext(NvmeNamespace *ns) -{ - return !!NVME_ID_NS_FLBAS_EXTENDED(ns->id_ns.flbas); -} - -/* calculate the number of LBAs that the namespace can accomodate */ -static inline uint64_t nvme_ns_nlbas(NvmeNamespace *ns) -{ - if (nvme_msize(ns)) { - return ns->size / (nvme_lsize(ns) + nvme_msize(ns)); - } - return ns->size >> nvme_ns_lbads(ns); -} - -typedef struct NvmeCtrl NvmeCtrl; - -static inline NvmeZoneState nvme_get_zone_state(NvmeZone *zone) -{ - return zone->d.zs >> 4; -} - -static inline void nvme_set_zone_state(NvmeZone *zone, NvmeZoneState state) -{ - zone->d.zs = state << 4; -} - -static inline uint64_t nvme_zone_rd_boundary(NvmeNamespace *ns, NvmeZone *zone) -{ - return zone->d.zslba + ns->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; -} - -static inline uint8_t *nvme_get_zd_extension(NvmeNamespace *ns, - uint32_t zone_idx) -{ - return &ns->zd_extensions[zone_idx * ns->params.zd_extension_size]; -} - -static inline void nvme_aor_inc_open(NvmeNamespace *ns) -{ - assert(ns->nr_open_zones >= 0); - if (ns->params.max_open_zones) { - ns->nr_open_zones++; - assert(ns->nr_open_zones <= ns->params.max_open_zones); - } -} - -static inline void nvme_aor_dec_open(NvmeNamespace *ns) -{ - if (ns->params.max_open_zones) { - assert(ns->nr_open_zones > 0); - ns->nr_open_zones--; - } - assert(ns->nr_open_zones >= 0); -} - -static inline void nvme_aor_inc_active(NvmeNamespace *ns) -{ - assert(ns->nr_active_zones >= 0); - if (ns->params.max_active_zones) { - ns->nr_active_zones++; - assert(ns->nr_active_zones <= ns->params.max_active_zones); - } -} - -static inline void nvme_aor_dec_active(NvmeNamespace *ns) -{ - if (ns->params.max_active_zones) { - assert(ns->nr_active_zones > 0); - ns->nr_active_zones--; - assert(ns->nr_active_zones >= ns->nr_open_zones); - } - assert(ns->nr_active_zones >= 0); -} - -void nvme_ns_init_format(NvmeNamespace *ns); -int nvme_ns_setup(NvmeCtrl *n, NvmeNamespace *ns, Error **errp); -void nvme_ns_drain(NvmeNamespace *ns); -void nvme_ns_shutdown(NvmeNamespace *ns); -void nvme_ns_cleanup(NvmeNamespace *ns); - -#endif /* NVME_NS_H */ |