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04 Nov 2020 18:54:07 -0800 From: Dmitry Fomichev To: Keith Busch , Klaus Jensen , Kevin Wolf , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Max Reitz , Maxim Levitsky , Fam Zheng Subject: [PATCH v9 10/12] hw/block/nvme: Support Zone Descriptor Extensions Date: Thu, 5 Nov 2020 11:53:40 +0900 Message-Id: <20201105025342.9037-11-dmitry.fomichev@wdc.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20201105025342.9037-1-dmitry.fomichev@wdc.com> References: <20201105025342.9037-1-dmitry.fomichev@wdc.com> MIME-Version: 1.0 Received-SPF: pass client-ip=216.71.153.141; envelope-from=prvs=571894d84=dmitry.fomichev@wdc.com; helo=esa3.hgst.iphmx.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/04 21:53:45 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Zone Descriptor Extension is a label that can be assigned to a zone. It can be set to an Empty zone and it stays assigned until the zone is reset. This commit adds a new optional module property, "zoned.descr_ext_size". Its value must be a multiple of 64 bytes. If this value is non-zero, it becomes possible to assign extensions of that size to any Empty zones. The default value for this property is 0, therefore setting extensions is disabled by default. Signed-off-by: Hans Holmberg Signed-off-by: Dmitry Fomichev Reviewed-by: Klaus Jensen Reviewed-by: Niklas Cassel --- hw/block/nvme-ns.h | 8 +++++++ hw/block/nvme-ns.c | 25 ++++++++++++++++++-- hw/block/nvme.c | 54 +++++++++++++++++++++++++++++++++++++++++-- hw/block/trace-events | 2 ++ 4 files changed, 85 insertions(+), 4 deletions(-) diff --git a/hw/block/nvme-ns.h b/hw/block/nvme-ns.h index 421bab0a57..50a6a0e1ac 100644 --- a/hw/block/nvme-ns.h +++ b/hw/block/nvme-ns.h @@ -35,6 +35,7 @@ typedef struct NvmeNamespaceParams { uint64_t zone_cap_bs; uint32_t max_active_zones; uint32_t max_open_zones; + uint32_t zd_extension_size; } NvmeNamespaceParams; typedef struct NvmeNamespace { @@ -58,6 +59,7 @@ typedef struct NvmeNamespace { uint64_t zone_capacity; uint64_t zone_array_size; uint32_t zone_size_log2; + uint8_t *zd_extensions; int32_t nr_open_zones; int32_t nr_active_zones; @@ -127,6 +129,12 @@ static inline bool nvme_wp_is_valid(NvmeZone *zone) 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); diff --git a/hw/block/nvme-ns.c b/hw/block/nvme-ns.c index 2e45838c15..85dc73cf06 100644 --- a/hw/block/nvme-ns.c +++ b/hw/block/nvme-ns.c @@ -133,6 +133,18 @@ static int nvme_calc_zone_geometry(NvmeNamespace *ns, Error **errp) return -1; } + if (ns->params.zd_extension_size) { + if (ns->params.zd_extension_size & 0x3f) { + error_setg(errp, + "zone descriptor extension size must be a multiple of 64B"); + return -1; + } + if ((ns->params.zd_extension_size >> 6) > 0xff) { + error_setg(errp, "zone descriptor extension size is too large"); + return -1; + } + } + return 0; } @@ -144,6 +156,10 @@ static void nvme_init_zone_state(NvmeNamespace *ns) int i; ns->zone_array = g_malloc0(ns->zone_array_size); + if (ns->params.zd_extension_size) { + ns->zd_extensions = g_malloc0(ns->params.zd_extension_size * + ns->num_zones); + } QTAILQ_INIT(&ns->exp_open_zones); QTAILQ_INIT(&ns->imp_open_zones); @@ -186,7 +202,8 @@ static int nvme_zoned_init_ns(NvmeCtrl *n, NvmeNamespace *ns, int lba_index, id_ns_z->ozcs = ns->params.cross_zone_read ? 0x01 : 0x00; id_ns_z->lbafe[lba_index].zsze = cpu_to_le64(ns->zone_size); - id_ns_z->lbafe[lba_index].zdes = 0; + id_ns_z->lbafe[lba_index].zdes = + ns->params.zd_extension_size >> 6; /* Units of 64B */ ns->csi = NVME_CSI_ZONED; ns->id_ns.nsze = cpu_to_le64(ns->zone_size * ns->num_zones); @@ -204,7 +221,8 @@ static void nvme_clear_zone(NvmeNamespace *ns, NvmeZone *zone) zone->w_ptr = zone->d.wp; state = nvme_get_zone_state(zone); - if (zone->d.wp != zone->d.zslba) { + if (zone->d.wp != zone->d.zslba || + (zone->d.za & NVME_ZA_ZD_EXT_VALID)) { if (state != NVME_ZONE_STATE_CLOSED) { trace_pci_nvme_clear_ns_close(state, zone->d.zslba); nvme_set_zone_state(zone, NVME_ZONE_STATE_CLOSED); @@ -301,6 +319,7 @@ void nvme_ns_cleanup(NvmeNamespace *ns) if (ns->params.zoned) { g_free(ns->id_ns_zoned); g_free(ns->zone_array); + g_free(ns->zd_extensions); } } @@ -332,6 +351,8 @@ static Property nvme_ns_props[] = { params.max_active_zones, 0), DEFINE_PROP_UINT32("zoned.max_open", NvmeNamespace, params.max_open_zones, 0), + DEFINE_PROP_UINT32("zoned.descr_ext_size", NvmeNamespace, + params.zd_extension_size, 0), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/block/nvme.c b/hw/block/nvme.c index cbfd58b7c1..0db51995cc 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -1703,6 +1703,26 @@ static uint16_t nvme_offline_zone(NvmeNamespace *ns, NvmeZone *zone, return NVME_ZONE_INVAL_TRANSITION; } +static uint16_t nvme_set_zd_ext(NvmeNamespace *ns, NvmeZone *zone) +{ + uint16_t status; + uint8_t state = nvme_get_zone_state(zone); + + if (state == NVME_ZONE_STATE_EMPTY) { + nvme_auto_transition_zone(ns, false, true); + status = nvme_aor_check(ns, 1, 0); + if (status != NVME_SUCCESS) { + return status; + } + nvme_aor_inc_active(ns); + zone->d.za |= NVME_ZA_ZD_EXT_VALID; + nvme_assign_zone_state(ns, zone, NVME_ZONE_STATE_CLOSED); + return NVME_SUCCESS; + } + + return NVME_ZONE_INVAL_TRANSITION; +} + static uint16_t nvme_bulk_proc_zone(NvmeNamespace *ns, NvmeZone *zone, enum NvmeZoneProcessingMask proc_mask, op_handler_t op_hndlr) @@ -1798,6 +1818,7 @@ static uint16_t nvme_zone_mgmt_send(NvmeCtrl *n, NvmeRequest *req) NvmeCmd *cmd = (NvmeCmd *)&req->cmd; NvmeNamespace *ns = req->ns; NvmeZone *zone; + uint8_t *zd_ext; uint32_t dw13 = le32_to_cpu(cmd->cdw13); uint64_t slba = 0; uint32_t zone_idx = 0; @@ -1870,7 +1891,22 @@ static uint16_t nvme_zone_mgmt_send(NvmeCtrl *n, NvmeRequest *req) case NVME_ZONE_ACTION_SET_ZD_EXT: trace_pci_nvme_set_descriptor_extension(slba, zone_idx); - return NVME_INVALID_FIELD | NVME_DNR; + if (all || !ns->params.zd_extension_size) { + return NVME_INVALID_FIELD | NVME_DNR; + } + zd_ext = nvme_get_zd_extension(ns, zone_idx); + status = nvme_dma(n, zd_ext, ns->params.zd_extension_size, + DMA_DIRECTION_TO_DEVICE, req); + if (status) { + trace_pci_nvme_err_zd_extension_map_error(zone_idx); + return status; + } + + status = nvme_set_zd_ext(ns, zone); + if (status == NVME_SUCCESS) { + trace_pci_nvme_zd_extension_set(zone_idx); + return status; + } break; default: @@ -1940,7 +1976,10 @@ static uint16_t nvme_zone_mgmt_recv(NvmeCtrl *n, NvmeRequest *req) } zra = dw13 & 0xff; - if (zra != NVME_ZONE_REPORT) { + if (zra != NVME_ZONE_REPORT && zra != NVME_ZONE_REPORT_EXTENDED) { + return NVME_INVALID_FIELD | NVME_DNR; + } + if (zra == NVME_ZONE_REPORT_EXTENDED && !ns->params.zd_extension_size) { return NVME_INVALID_FIELD | NVME_DNR; } @@ -1961,6 +2000,9 @@ static uint16_t nvme_zone_mgmt_recv(NvmeCtrl *n, NvmeRequest *req) partial = (dw13 >> 16) & 0x01; zone_entry_sz = sizeof(NvmeZoneDescr); + if (zra == NVME_ZONE_REPORT_EXTENDED) { + zone_entry_sz += ns->params.zd_extension_size; + } max_zones = (data_size - sizeof(NvmeZoneReportHeader)) / zone_entry_sz; buf = g_malloc0(data_size); @@ -1992,6 +2034,14 @@ static uint16_t nvme_zone_mgmt_recv(NvmeCtrl *n, NvmeRequest *req) z->wp = cpu_to_le64(~0ULL); } + if (zra == NVME_ZONE_REPORT_EXTENDED) { + if (zs->d.za & NVME_ZA_ZD_EXT_VALID) { + memcpy(buf_p, nvme_get_zd_extension(ns, zone_idx), + ns->params.zd_extension_size); + } + buf_p += ns->params.zd_extension_size; + } + zone_idx++; } diff --git a/hw/block/trace-events b/hw/block/trace-events index e674522883..d42d2c8d61 100644 --- a/hw/block/trace-events +++ b/hw/block/trace-events @@ -95,6 +95,7 @@ pci_nvme_finish_zone(uint64_t slba, uint32_t zone_idx, int all) "finish zone, sl pci_nvme_reset_zone(uint64_t slba, uint32_t zone_idx, int all) "reset zone, slba=%"PRIu64", idx=%"PRIu32", all=%"PRIi32"" pci_nvme_offline_zone(uint64_t slba, uint32_t zone_idx, int all) "offline zone, slba=%"PRIu64", idx=%"PRIu32", all=%"PRIi32"" pci_nvme_set_descriptor_extension(uint64_t slba, uint32_t zone_idx) "set zone descriptor extension, slba=%"PRIu64", idx=%"PRIu32"" +pci_nvme_zd_extension_set(uint32_t zone_idx) "set descriptor extension for zone_idx=%"PRIu32"" pci_nvme_clear_ns_close(uint32_t state, uint64_t slba) "zone state=%"PRIu32", slba=%"PRIu64" transitioned to Closed state" pci_nvme_clear_ns_reset(uint32_t state, uint64_t slba) "zone state=%"PRIu32", slba=%"PRIu64" transitioned to Empty state" @@ -124,6 +125,7 @@ pci_nvme_err_zone_read_not_ok(uint64_t slba, uint32_t nlb, uint32_t status) "slb pci_nvme_err_append_too_large(uint64_t slba, uint32_t nlb, uint8_t zasl) "slba=%"PRIu64", nlb=%"PRIu32", zasl=%"PRIu8"" pci_nvme_err_insuff_active_res(uint32_t max_active) "max_active=%"PRIu32" zone limit exceeded" pci_nvme_err_insuff_open_res(uint32_t max_open) "max_open=%"PRIu32" zone limit exceeded" +pci_nvme_err_zd_extension_map_error(uint32_t zone_idx) "can't map descriptor extension for zone_idx=%"PRIu32"" pci_nvme_err_invalid_iocsci(uint32_t idx) "unsupported command set combination index %"PRIu32"" pci_nvme_err_invalid_del_sq(uint16_t qid) "invalid submission queue deletion, sid=%"PRIu16"" pci_nvme_err_invalid_create_sq_cqid(uint16_t cqid) "failed creating submission queue, invalid cqid=%"PRIu16""