[RFC,1/5] hw/nvme: use blk_get_*() to access zone info in the block layer

Message ID	20230816064617.3310-2-faithilikerun@gmail.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org> From: Sam Li <faithilikerun@gmail.com> To: qemu-devel@nongnu.org Cc: Peter Xu <peterx@redhat.com>, stefanha@redhat.com, David Hildenbrand <david@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Markus Armbruster <armbru@redhat.com>, Keith Busch <kbusch@kernel.org>, Hanna Reitz <hreitz@redhat.com>, dmitry.fomichev@wdc.com, Eric Blake <eblake@redhat.com>, Klaus Jensen <its@irrelevant.dk>, =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>, dlemoal@kernel.org, Paolo Bonzini <pbonzini@redhat.com>, hare@suse.de, qemu-block@nongnu.org, Sam Li <faithilikerun@gmail.com> Subject: [RFC 1/5] hw/nvme: use blk_get_*() to access zone info in the block layer Date: Wed, 16 Aug 2023 14:46:13 +0800 Message-Id: <20230816064617.3310-2-faithilikerun@gmail.com> In-Reply-To: <20230816064617.3310-1-faithilikerun@gmail.com> References: <20230816064617.3310-1-faithilikerun@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::62d; envelope-from=faithilikerun@gmail.com; helo=mail-pl1-x62d.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 Precedence: list Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org
Series	Add persistence to NVMe ZNS emulation \| expand [RFC,0/5] Add persistence to NVMe ZNS emulation [RFC,1/5] hw/nvme: use blk_get_*() to access zone info in the block layer [RFC,2/5] qcow2: add zone device metadata with zd_extension [RFC,3/5] hw/nvme: make the metadata of ZNS emulation persistent

diff --git a/block/block-backend.c b/block/block-backend.c index 4009ed5fed..ad410286a0 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2362,6 +2362,62 @@ int blk_get_max_iov(BlockBackend *blk) return blk->root->bs->bl.max_iov; } +uint8_t blk_get_zone_model(BlockBackend *blk) +{ + BlockDriverState *bs = blk_bs(blk); + IO_CODE(); + return bs ? bs->bl.zoned: 0; + +} + +uint8_t blk_get_zone_profile(BlockBackend *blk) +{ + BlockDriverState *bs = blk_bs(blk); + IO_CODE(); + return bs ? bs->bl.zoned_profile: 0; + +} + +uint32_t blk_get_zone_size(BlockBackend *blk) +{ + BlockDriverState *bs = blk_bs(blk); + IO_CODE(); + + return bs ? bs->bl.zone_size : 0; +} + +uint32_t blk_get_zone_capacity(BlockBackend *blk) +{ + BlockDriverState *bs = blk_bs(blk); + IO_CODE(); + + return bs ? bs->bl.zone_capacity : 0; +} + +uint32_t blk_get_max_open_zones(BlockBackend *blk) +{ + BlockDriverState *bs = blk_bs(blk); + IO_CODE(); + + return bs ? bs->bl.max_open_zones : 0; +} + +uint32_t blk_get_max_active_zones(BlockBackend *blk) +{ + BlockDriverState *bs = blk_bs(blk); + IO_CODE(); + + return bs ? bs->bl.max_active_zones : 0; +} + +uint32_t blk_get_max_append_sectors(BlockBackend *blk) +{ + BlockDriverState *bs = blk_bs(blk); + IO_CODE(); + + return bs ? bs->bl.max_append_sectors : 0; +} + void *blk_try_blockalign(BlockBackend *blk, size_t size) { IO_CODE(); diff --git a/block/qcow2.c b/block/qcow2.c index 5ccf79cbe7..9de90ccc9f 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -2172,6 +2172,8 @@ static void qcow2_refresh_limits(BlockDriverState *bs, Error **errp) bs->bl.pwrite_zeroes_alignment = s->subcluster_size; bs->bl.pdiscard_alignment = s->cluster_size; bs->bl.zoned = s->zoned_header.zoned; + bs->bl.zoned_profile = s->zoned_header.zoned_profile; + bs->bl.zone_capacity = s->zoned_header.zone_capacity; bs->bl.nr_zones = s->zoned_header.nr_zones; bs->wps = s->wps; bs->bl.max_append_sectors = s->zoned_header.max_append_sectors; @@ -4083,8 +4085,22 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp) s->zoned_header.zoned = BLK_Z_HM; s->zoned_header.zone_size = qcow2_opts->zone_size; s->zoned_header.zone_nr_conv = qcow2_opts->zone_nr_conv; - s->zoned_header.max_open_zones = qcow2_opts->max_open_zones; - s->zoned_header.max_active_zones = qcow2_opts->max_active_zones; + + if (!qcow2_opts->max_active_zones) { + if (qcow2_opts->max_open_zones > qcow2_opts->max_active_zones) { + error_setg(errp, "max_open_zones (%u) exceeds " + "max_active_zones (%u)", qcow2_opts->max_open_zones, + qcow2_opts->max_active_zones); + return -1; + } + + if (!qcow2_opts->max_open_zones) { + s->zoned_header.max_open_zones = qcow2_opts->max_active_zones; + } + s->zoned_header.max_open_zones = qcow2_opts->max_open_zones; + s->zoned_header.max_active_zones = qcow2_opts->max_active_zones; + } + s->zoned_header.max_append_sectors = qcow2_opts->max_append_sectors; s->zoned_header.nr_zones = qcow2_opts->size / qcow2_opts->zone_size; diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index 539d273553..4e1608f0c1 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -417,18 +417,6 @@ static void nvme_assign_zone_state(NvmeNamespace *ns, NvmeZone *zone, static uint16_t nvme_zns_check_resources(NvmeNamespace *ns, uint32_t act, uint32_t opn, uint32_t zrwa) { - if (ns->params.max_active_zones != 0 && - ns->nr_active_zones + act > ns->params.max_active_zones) { - trace_pci_nvme_err_insuff_active_res(ns->params.max_active_zones); - return NVME_ZONE_TOO_MANY_ACTIVE | NVME_DNR; - } - - if (ns->params.max_open_zones != 0 && - ns->nr_open_zones + opn > ns->params.max_open_zones) { - trace_pci_nvme_err_insuff_open_res(ns->params.max_open_zones); - return NVME_ZONE_TOO_MANY_OPEN | NVME_DNR; - } - if (zrwa > ns->zns.numzrwa) { return NVME_NOZRWA | NVME_DNR; } @@ -1988,9 +1976,9 @@ static uint16_t nvme_zrm_reset(NvmeNamespace *ns, NvmeZone *zone) static void nvme_zrm_auto_transition_zone(NvmeNamespace *ns) { NvmeZone *zone; + int moz = blk_get_max_open_zones(ns->blkconf.blk); - if (ns->params.max_open_zones && - ns->nr_open_zones == ns->params.max_open_zones) { + if (moz && ns->nr_open_zones == moz) { zone = QTAILQ_FIRST(&ns->imp_open_zones); if (zone) { /* @@ -2165,7 +2153,7 @@ void nvme_rw_complete_cb(void *opaque, int ret) block_acct_done(stats, acct); } - if (ns->params.zoned && nvme_is_write(req)) { + if (blk_get_zone_model(blk) && nvme_is_write(req)) { nvme_finalize_zoned_write(ns, req); } @@ -2887,7 +2875,7 @@ static void nvme_copy_out_completed_cb(void *opaque, int ret) goto out; } - if (ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { nvme_advance_zone_wp(ns, iocb->zone, nlb); } @@ -2999,7 +2987,7 @@ static void nvme_copy_in_completed_cb(void *opaque, int ret) goto invalid; } - if (ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { status = nvme_check_zone_write(ns, iocb->zone, iocb->slba, nlb); if (status) { goto invalid; @@ -3093,7 +3081,7 @@ static void nvme_do_copy(NvmeCopyAIOCB *iocb) } } - if (ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { status = nvme_check_zone_read(ns, slba, nlb); if (status) { goto invalid; @@ -3169,7 +3157,7 @@ static uint16_t nvme_copy(NvmeCtrl *n, NvmeRequest *req) iocb->slba = le64_to_cpu(copy->sdlba); - if (ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { iocb->zone = nvme_get_zone_by_slba(ns, iocb->slba); if (!iocb->zone) { status = NVME_LBA_RANGE | NVME_DNR; @@ -3440,7 +3428,7 @@ static uint16_t nvme_read(NvmeCtrl *n, NvmeRequest *req) goto invalid; } - if (ns->params.zoned) { + if (blk_get_zone_model(blk)) { status = nvme_check_zone_read(ns, slba, nlb); if (status) { trace_pci_nvme_err_zone_read_not_ok(slba, nlb, status); @@ -3555,7 +3543,7 @@ static uint16_t nvme_do_write(NvmeCtrl *n, NvmeRequest *req, bool append, goto invalid; } - if (ns->params.zoned) { + if (blk_get_zone_model(blk)) { zone = nvme_get_zone_by_slba(ns, slba); assert(zone); @@ -3673,7 +3661,7 @@ static uint16_t nvme_get_mgmt_zone_slba_idx(NvmeNamespace *ns, NvmeCmd *c, uint32_t dw10 = le32_to_cpu(c->cdw10); uint32_t dw11 = le32_to_cpu(c->cdw11); - if (!ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { trace_pci_nvme_err_invalid_opc(c->opcode); return NVME_INVALID_OPCODE | NVME_DNR; } @@ -6534,7 +6522,7 @@ done: static uint16_t nvme_format_check(NvmeNamespace *ns, uint8_t lbaf, uint8_t pi) { - if (ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { return NVME_INVALID_FORMAT | NVME_DNR; } diff --git a/hw/nvme/ns.c b/hw/nvme/ns.c index 44aba8f4d9..f076593ada 100644 --- a/hw/nvme/ns.c +++ b/hw/nvme/ns.c @@ -25,7 +25,6 @@ #include "trace.h" #define MIN_DISCARD_GRANULARITY (4 * KiB) -#define NVME_DEFAULT_ZONE_SIZE (128 * MiB) void nvme_ns_init_format(NvmeNamespace *ns) { @@ -177,19 +176,11 @@ static int nvme_ns_init_blk(NvmeNamespace *ns, Error **errp) static int nvme_ns_zoned_check_calc_geometry(NvmeNamespace *ns, Error **errp) { - uint64_t zone_size, zone_cap; + BlockBackend *blk = ns->blkconf.blk; + uint64_t zone_size = blk_get_zone_size(blk); + uint64_t zone_cap = blk_get_zone_capacity(blk); /* Make sure that the values of ZNS properties are sane */ - if (ns->params.zone_size_bs) { - zone_size = ns->params.zone_size_bs; - } else { - zone_size = NVME_DEFAULT_ZONE_SIZE; - } - if (ns->params.zone_cap_bs) { - zone_cap = ns->params.zone_cap_bs; - } else { - zone_cap = zone_size; - } if (zone_cap > zone_size) { error_setg(errp, "zone capacity %"PRIu64"B exceeds " "zone size %"PRIu64"B", zone_cap, zone_size); @@ -266,6 +257,7 @@ static void nvme_ns_zoned_init_state(NvmeNamespace *ns) static void nvme_ns_init_zoned(NvmeNamespace *ns) { + BlockBackend *blk = ns->blkconf.blk; NvmeIdNsZoned *id_ns_z; int i; @@ -274,8 +266,8 @@ static void nvme_ns_init_zoned(NvmeNamespace *ns) id_ns_z = g_new0(NvmeIdNsZoned, 1); /* MAR/MOR are zeroes-based, FFFFFFFFFh means no limit */ - id_ns_z->mar = cpu_to_le32(ns->params.max_active_zones - 1); - id_ns_z->mor = cpu_to_le32(ns->params.max_open_zones - 1); + id_ns_z->mar = cpu_to_le32(blk_get_max_active_zones(blk) - 1); + id_ns_z->mor = cpu_to_le32(blk_get_max_open_zones(blk) - 1); id_ns_z->zoc = 0; id_ns_z->ozcs = ns->params.cross_zone_read ? NVME_ID_NS_ZONED_OZCS_RAZB : 0x00; @@ -539,6 +531,7 @@ static bool nvme_ns_init_fdp(NvmeNamespace *ns, Error **errp) static int nvme_ns_check_constraints(NvmeNamespace *ns, Error **errp) { + BlockBackend *blk = ns->blkconf.blk; unsigned int pi_size; if (!ns->blkconf.blk) { @@ -577,25 +570,13 @@ static int nvme_ns_check_constraints(NvmeNamespace *ns, Error **errp) return -1; } - if (ns->params.zoned && ns->endgrp && ns->endgrp->fdp.enabled) { + if (blk_get_zone_profile(blk) == BLK_ZP_ZNS && ns->endgrp + && ns->endgrp->fdp.enabled) { error_setg(errp, "cannot be a zoned- in an FDP configuration"); return -1; } - if (ns->params.zoned) { - if (ns->params.max_active_zones) { - if (ns->params.max_open_zones > ns->params.max_active_zones) { - error_setg(errp, "max_open_zones (%u) exceeds " - "max_active_zones (%u)", ns->params.max_open_zones, - ns->params.max_active_zones); - return -1; - } - - if (!ns->params.max_open_zones) { - ns->params.max_open_zones = ns->params.max_active_zones; - } - } - + if (blk_get_zone_model(blk)) { if (ns->params.zd_extension_size) { if (ns->params.zd_extension_size & 0x3f) { error_setg(errp, "zone descriptor extension size must be a " @@ -630,14 +611,14 @@ static int nvme_ns_check_constraints(NvmeNamespace *ns, Error **errp) return -1; } - if (ns->params.max_active_zones) { - if (ns->params.numzrwa > ns->params.max_active_zones) { + int maz = blk_get_max_active_zones(blk); + if (maz) { + if (ns->params.numzrwa > maz) { error_setg(errp, "number of zone random write area " "resources (zoned.numzrwa, %d) must be less " "than or equal to maximum active resources " "(zoned.max_active_zones, %d)", - ns->params.numzrwa, - ns->params.max_active_zones); + ns->params.numzrwa, maz); return -1; } } @@ -660,7 +641,7 @@ int nvme_ns_setup(NvmeNamespace *ns, Error **errp) if (nvme_ns_init(ns, errp)) { return -1; } - if (ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { if (nvme_ns_zoned_check_calc_geometry(ns, errp) != 0) { return -1; } @@ -683,15 +664,17 @@ void nvme_ns_drain(NvmeNamespace *ns) void nvme_ns_shutdown(NvmeNamespace *ns) { - blk_flush(ns->blkconf.blk); - if (ns->params.zoned) { + + BlockBackend *blk = ns->blkconf.blk; + blk_flush(blk); + if (blk_get_zone_model(blk)) { nvme_zoned_ns_shutdown(ns); } } void nvme_ns_cleanup(NvmeNamespace *ns) { - if (ns->params.zoned) { + if (blk_get_zone_model(ns->blkconf.blk)) { g_free(ns->id_ns_zoned); g_free(ns->zone_array); g_free(ns->zd_extensions); @@ -806,11 +789,6 @@ static Property nvme_ns_props[] = { DEFINE_PROP_UINT16("mssrl", NvmeNamespace, params.mssrl, 128), DEFINE_PROP_UINT32("mcl", NvmeNamespace, params.mcl, 128), DEFINE_PROP_UINT8("msrc", NvmeNamespace, params.msrc, 127), - DEFINE_PROP_BOOL("zoned", NvmeNamespace, params.zoned, false), - DEFINE_PROP_SIZE("zoned.zone_size", NvmeNamespace, params.zone_size_bs, - NVME_DEFAULT_ZONE_SIZE), - DEFINE_PROP_SIZE("zoned.zone_capacity", NvmeNamespace, params.zone_cap_bs, - 0), DEFINE_PROP_BOOL("zoned.cross_read", NvmeNamespace, params.cross_zone_read, false), DEFINE_PROP_UINT32("zoned.max_active", NvmeNamespace, diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index 5f2ae7b28b..76677a86e9 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -189,10 +189,7 @@ typedef struct NvmeNamespaceParams { 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; diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h index be4dcef59d..3be221e752 100644 --- a/include/sysemu/block-backend-io.h +++ b/include/sysemu/block-backend-io.h @@ -99,6 +99,13 @@ void blk_error_action(BlockBackend *blk, BlockErrorAction action, void blk_iostatus_set_err(BlockBackend *blk, int error); int blk_get_max_iov(BlockBackend *blk); int blk_get_max_hw_iov(BlockBackend *blk); +uint8_t blk_get_zone_model(BlockBackend *blk); +uint8_t blk_get_zone_profile(BlockBackend *blk); +uint32_t blk_get_zone_size(BlockBackend *blk); +uint32_t blk_get_zone_capacity(BlockBackend *blk); +uint32_t blk_get_max_open_zones(BlockBackend *blk); +uint32_t blk_get_max_active_zones(BlockBackend *blk); +uint32_t blk_get_max_append_sectors(BlockBackend *blk); void blk_io_plug(void); void blk_io_unplug(void);

[RFC,1/5] hw/nvme: use blk_get_*() to access zone info in the block layer

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