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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=68.232.141.245; envelope-from=prvs=430b82a1d=dmitry.fomichev@wdc.com; helo=esa1.hgst.iphmx.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/17 17:34:28 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, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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, Matias Bjorling Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Added a Boolean flag to turn on simulation of Zone Active Excursions. If the flag, "active_excursions", is set to true, the driver will try to finish one of the currently open zone if max active zones limit is going to get exceeded. Signed-off-by: Dmitry Fomichev Reviewed-by: Alistair Francis --- hw/block/nvme.c | 24 +++++++++++++++++++++++- hw/block/nvme.h | 1 + 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 05a7cbcfcc..a29cbfcc96 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -540,6 +540,26 @@ static void nvme_auto_transition_zone(NvmeCtrl *n, Nvm= eNamespace *ns, { NvmeZone *zone; =20 + if (n->params.active_excursions && adding_active && + n->params.max_active_zones && + ns->nr_active_zones =3D=3D n->params.max_active_zones) { + zone =3D nvme_peek_zone_head(ns, ns->closed_zones); + if (zone) { + /* + * The namespace is at the limit of active zones. + * Try to finish one of the currently active zones + * to make the needed active zone resource available. + */ + nvme_aor_dec_active(n, ns); + nvme_assign_zone_state(n, ns, zone, NVME_ZONE_STATE_FULL); + zone->d.za &=3D ~(NVME_ZA_FINISH_RECOMMENDED | + NVME_ZA_RESET_RECOMMENDED); + zone->d.za |=3D NVME_ZA_FINISHED_BY_CTLR; + zone->tstamp =3D 0; + trace_pci_nvme_zone_finished_by_controller(zone->d.zslba); + } + } + if (implicit && n->params.max_open_zones && ns->nr_open_zones =3D=3D n->params.max_open_zones) { zone =3D nvme_remove_zone_head(n, ns, ns->imp_open_zones); @@ -2631,7 +2651,7 @@ static int nvme_zoned_init_ns(NvmeCtrl *n, NvmeNamesp= ace *ns, int lba_index, /* MAR/MOR are zeroes-based, 0xffffffff means no limit */ ns->id_ns_zoned->mar =3D cpu_to_le32(n->params.max_active_zones - 1); ns->id_ns_zoned->mor =3D cpu_to_le32(n->params.max_open_zones - 1); - ns->id_ns_zoned->zoc =3D 0; + ns->id_ns_zoned->zoc =3D cpu_to_le16(n->params.active_excursions ? 0x2= : 0); ns->id_ns_zoned->ozcs =3D n->params.cross_zone_read ? 0x01 : 0x00; =20 ns->id_ns_zoned->lbafe[lba_index].zsze =3D cpu_to_le64(n->params.zone_= size); @@ -2993,6 +3013,8 @@ static Property nvme_props[] =3D { DEFINE_PROP_INT32("max_active", NvmeCtrl, params.max_active_zones, 0), DEFINE_PROP_INT32("max_open", NvmeCtrl, params.max_open_zones, 0), DEFINE_PROP_BOOL("cross_zone_read", NvmeCtrl, params.cross_zone_read, = true), + DEFINE_PROP_BOOL("active_excursions", NvmeCtrl, params.active_excursio= ns, + false), DEFINE_PROP_UINT8("fill_pattern", NvmeCtrl, params.fill_pattern, 0), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/block/nvme.h b/hw/block/nvme.h index f5a4679702..8a0aaeb09a 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -15,6 +15,7 @@ typedef struct NvmeParams { =20 bool zoned; bool cross_zone_read; + bool active_excursions; uint8_t fill_pattern; uint32_t zamds_bs; uint64_t zone_size; --=20 2.21.0