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-rw-r--r--drivers/nvme/host/core.c165
-rw-r--r--drivers/nvme/host/nvme.h4
2 files changed, 141 insertions, 28 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index aeda4d0975fc..677fa4bf76d3 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -785,6 +785,30 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
return BLK_STS_OK;
}
+static void nvme_set_ref_tag(struct nvme_ns *ns, struct nvme_command *cmnd,
+ struct request *req)
+{
+ u32 upper, lower;
+ u64 ref48;
+
+ /* both rw and write zeroes share the same reftag format */
+ switch (ns->guard_type) {
+ case NVME_NVM_NS_16B_GUARD:
+ cmnd->rw.reftag = cpu_to_le32(t10_pi_ref_tag(req));
+ break;
+ case NVME_NVM_NS_64B_GUARD:
+ ref48 = ext_pi_ref_tag(req);
+ lower = lower_32_bits(ref48);
+ upper = upper_32_bits(ref48);
+
+ cmnd->rw.reftag = cpu_to_le32(lower);
+ cmnd->rw.cdw3 = cpu_to_le32(upper);
+ break;
+ default:
+ break;
+ }
+}
+
static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
struct request *req, struct nvme_command *cmnd)
{
@@ -806,8 +830,7 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
switch (ns->pi_type) {
case NVME_NS_DPS_PI_TYPE1:
case NVME_NS_DPS_PI_TYPE2:
- cmnd->write_zeroes.reftag =
- cpu_to_le32(t10_pi_ref_tag(req));
+ nvme_set_ref_tag(ns, cmnd, req);
break;
}
}
@@ -833,7 +856,8 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
cmnd->rw.opcode = op;
cmnd->rw.flags = 0;
cmnd->rw.nsid = cpu_to_le32(ns->head->ns_id);
- cmnd->rw.rsvd2 = 0;
+ cmnd->rw.cdw2 = 0;
+ cmnd->rw.cdw3 = 0;
cmnd->rw.metadata = 0;
cmnd->rw.slba = cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
@@ -864,7 +888,7 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
NVME_RW_PRINFO_PRCHK_REF;
if (op == nvme_cmd_zone_append)
control |= NVME_RW_APPEND_PIREMAP;
- cmnd->rw.reftag = cpu_to_le32(t10_pi_ref_tag(req));
+ nvme_set_ref_tag(ns, cmnd, req);
break;
}
}
@@ -1520,33 +1544,58 @@ int nvme_getgeo(struct block_device *bdev, struct hd_geometry *geo)
}
#ifdef CONFIG_BLK_DEV_INTEGRITY
-static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type,
+static void nvme_init_integrity(struct gendisk *disk, struct nvme_ns *ns,
u32 max_integrity_segments)
{
struct blk_integrity integrity = { };
- switch (pi_type) {
+ switch (ns->pi_type) {
case NVME_NS_DPS_PI_TYPE3:
- integrity.profile = &t10_pi_type3_crc;
- integrity.tag_size = sizeof(u16) + sizeof(u32);
- integrity.flags |= BLK_INTEGRITY_DEVICE_CAPABLE;
+ switch (ns->guard_type) {
+ case NVME_NVM_NS_16B_GUARD:
+ integrity.profile = &t10_pi_type3_crc;
+ integrity.tag_size = sizeof(u16) + sizeof(u32);
+ integrity.flags |= BLK_INTEGRITY_DEVICE_CAPABLE;
+ break;
+ case NVME_NVM_NS_64B_GUARD:
+ integrity.profile = &ext_pi_type3_crc64;
+ integrity.tag_size = sizeof(u16) + 6;
+ integrity.flags |= BLK_INTEGRITY_DEVICE_CAPABLE;
+ break;
+ default:
+ integrity.profile = NULL;
+ break;
+ }
break;
case NVME_NS_DPS_PI_TYPE1:
case NVME_NS_DPS_PI_TYPE2:
- integrity.profile = &t10_pi_type1_crc;
- integrity.tag_size = sizeof(u16);
- integrity.flags |= BLK_INTEGRITY_DEVICE_CAPABLE;
+ switch (ns->guard_type) {
+ case NVME_NVM_NS_16B_GUARD:
+ integrity.profile = &t10_pi_type1_crc;
+ integrity.tag_size = sizeof(u16);
+ integrity.flags |= BLK_INTEGRITY_DEVICE_CAPABLE;
+ break;
+ case NVME_NVM_NS_64B_GUARD:
+ integrity.profile = &ext_pi_type1_crc64;
+ integrity.tag_size = sizeof(u16);
+ integrity.flags |= BLK_INTEGRITY_DEVICE_CAPABLE;
+ break;
+ default:
+ integrity.profile = NULL;
+ break;
+ }
break;
default:
integrity.profile = NULL;
break;
}
- integrity.tuple_size = ms;
+
+ integrity.tuple_size = ns->ms;
blk_integrity_register(disk, &integrity);
blk_queue_max_integrity_segments(disk->queue, max_integrity_segments);
}
#else
-static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type,
+static void nvme_init_integrity(struct gendisk *disk, struct nvme_ns *ns,
u32 max_integrity_segments)
{
}
@@ -1588,20 +1637,73 @@ static bool nvme_ns_ids_equal(struct nvme_ns_ids *a, struct nvme_ns_ids *b)
a->csi == b->csi;
}
-static void nvme_configure_metadata(struct nvme_ns *ns, struct nvme_id_ns *id)
+static int nvme_init_ms(struct nvme_ns *ns, struct nvme_id_ns *id)
{
+ bool first = id->dps & NVME_NS_DPS_PI_FIRST;
+ unsigned lbaf = nvme_lbaf_index(id->flbas);
struct nvme_ctrl *ctrl = ns->ctrl;
+ struct nvme_command c = { };
+ struct nvme_id_ns_nvm *nvm;
+ int ret = 0;
+ u32 elbaf;
+
+ ns->pi_size = 0;
+ ns->ms = le16_to_cpu(id->lbaf[lbaf].ms);
+ if (!(ctrl->ctratt & NVME_CTRL_ATTR_ELBAS)) {
+ ns->pi_size = sizeof(struct t10_pi_tuple);
+ ns->guard_type = NVME_NVM_NS_16B_GUARD;
+ goto set_pi;
+ }
- /*
- * The PI implementation requires the metadata size to be equal to the
- * t10 pi tuple size.
- */
- ns->ms = le16_to_cpu(id->lbaf[id->flbas & NVME_NS_FLBAS_LBA_MASK].ms);
- if (ns->ms == sizeof(struct t10_pi_tuple))
+ nvm = kzalloc(sizeof(*nvm), GFP_KERNEL);
+ if (!nvm)
+ return -ENOMEM;
+
+ c.identify.opcode = nvme_admin_identify;
+ c.identify.nsid = cpu_to_le32(ns->head->ns_id);
+ c.identify.cns = NVME_ID_CNS_CS_NS;
+ c.identify.csi = NVME_CSI_NVM;
+
+ ret = nvme_submit_sync_cmd(ns->ctrl->admin_q, &c, nvm, sizeof(*nvm));
+ if (ret)
+ goto free_data;
+
+ elbaf = le32_to_cpu(nvm->elbaf[lbaf]);
+
+ /* no support for storage tag formats right now */
+ if (nvme_elbaf_sts(elbaf))
+ goto free_data;
+
+ ns->guard_type = nvme_elbaf_guard_type(elbaf);
+ switch (ns->guard_type) {
+ case NVME_NVM_NS_64B_GUARD:
+ ns->pi_size = sizeof(struct crc64_pi_tuple);
+ break;
+ case NVME_NVM_NS_16B_GUARD:
+ ns->pi_size = sizeof(struct t10_pi_tuple);
+ break;
+ default:
+ break;
+ }
+
+free_data:
+ kfree(nvm);
+set_pi:
+ if (ns->pi_size && (first || ns->ms == ns->pi_size))
ns->pi_type = id->dps & NVME_NS_DPS_PI_MASK;
else
ns->pi_type = 0;
+ return ret;
+}
+
+static void nvme_configure_metadata(struct nvme_ns *ns, struct nvme_id_ns *id)
+{
+ struct nvme_ctrl *ctrl = ns->ctrl;
+
+ if (nvme_init_ms(ns, id))
+ return;
+
ns->features &= ~(NVME_NS_METADATA_SUPPORTED | NVME_NS_EXT_LBAS);
if (!ns->ms || !(ctrl->ops->flags & NVME_F_METADATA_SUPPORTED))
return;
@@ -1717,7 +1819,7 @@ static void nvme_update_disk_info(struct gendisk *disk,
if (ns->ms) {
if (IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY) &&
(ns->features & NVME_NS_METADATA_SUPPORTED))
- nvme_init_integrity(disk, ns->ms, ns->pi_type,
+ nvme_init_integrity(disk, ns,
ns->ctrl->max_integrity_segments);
else if (!nvme_ns_has_pi(ns))
capacity = 0;
@@ -1772,7 +1874,7 @@ static void nvme_set_chunk_sectors(struct nvme_ns *ns, struct nvme_id_ns *id)
static int nvme_update_ns_info(struct nvme_ns *ns, struct nvme_id_ns *id)
{
- unsigned lbaf = id->flbas & NVME_NS_FLBAS_LBA_MASK;
+ unsigned lbaf = nvme_lbaf_index(id->flbas);
int ret;
blk_mq_freeze_queue(ns->disk->queue);
@@ -2117,20 +2219,27 @@ static int nvme_configure_timestamp(struct nvme_ctrl *ctrl)
return ret;
}
-static int nvme_configure_acre(struct nvme_ctrl *ctrl)
+static int nvme_configure_host_options(struct nvme_ctrl *ctrl)
{
struct nvme_feat_host_behavior *host;
+ u8 acre = 0, lbafee = 0;
int ret;
/* Don't bother enabling the feature if retry delay is not reported */
- if (!ctrl->crdt[0])
+ if (ctrl->crdt[0])
+ acre = NVME_ENABLE_ACRE;
+ if (ctrl->ctratt & NVME_CTRL_ATTR_ELBAS)
+ lbafee = NVME_ENABLE_LBAFEE;
+
+ if (!acre && !lbafee)
return 0;
host = kzalloc(sizeof(*host), GFP_KERNEL);
if (!host)
return 0;
- host->acre = NVME_ENABLE_ACRE;
+ host->acre = acre;
+ host->lbafee = lbafee;
ret = nvme_set_features(ctrl, NVME_FEAT_HOST_BEHAVIOR, 0,
host, sizeof(*host), NULL);
kfree(host);
@@ -2968,7 +3077,7 @@ int nvme_init_ctrl_finish(struct nvme_ctrl *ctrl)
if (ret < 0)
return ret;
- ret = nvme_configure_acre(ctrl);
+ ret = nvme_configure_host_options(ctrl);
if (ret < 0)
return ret;
@@ -4704,12 +4813,14 @@ static inline void _nvme_check_size(void)
BUILD_BUG_ON(sizeof(struct nvme_id_ctrl) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_id_ns) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_id_ns_zns) != NVME_IDENTIFY_DATA_SIZE);
+ BUILD_BUG_ON(sizeof(struct nvme_id_ns_nvm) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_id_ctrl_zns) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_id_ctrl_nvm) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_lba_range_type) != 64);
BUILD_BUG_ON(sizeof(struct nvme_smart_log) != 512);
BUILD_BUG_ON(sizeof(struct nvme_dbbuf) != 64);
BUILD_BUG_ON(sizeof(struct nvme_directive_cmd) != 64);
+ BUILD_BUG_ON(sizeof(struct nvme_feat_host_behavior) != 512);
}
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 293a93a15fa6..f4b674a8ce20 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -453,9 +453,11 @@ struct nvme_ns {
int lba_shift;
u16 ms;
+ u16 pi_size;
u16 sgs;
u32 sws;
u8 pi_type;
+ u8 guard_type;
#ifdef CONFIG_BLK_DEV_ZONED
u64 zsze;
#endif
@@ -478,7 +480,7 @@ struct nvme_ns {
/* NVMe ns supports metadata actions by the controller (generate/strip) */
static inline bool nvme_ns_has_pi(struct nvme_ns *ns)
{
- return ns->pi_type && ns->ms == sizeof(struct t10_pi_tuple);
+ return ns->pi_type && ns->ms == ns->pi_size;
}
struct nvme_ctrl_ops {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 09:56:32 +0000