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-rw-r--r--drivers/nvme/host/Kconfig10
-rw-r--r--drivers/nvme/host/Makefile1
-rw-r--r--drivers/nvme/host/core.c136
-rw-r--r--drivers/nvme/host/fabrics.h3
-rw-r--r--drivers/nvme/host/fc.c49
-rw-r--r--drivers/nvme/host/hwmon.c259
-rw-r--r--drivers/nvme/host/multipath.c24
-rw-r--r--drivers/nvme/host/nvme.h38
-rw-r--r--drivers/nvme/host/pci.c92
-rw-r--r--drivers/nvme/host/rdma.c32
-rw-r--r--drivers/nvme/host/tcp.c17
-rw-r--r--drivers/nvme/target/admin-cmd.c133
-rw-r--r--drivers/nvme/target/core.c20
-rw-r--r--drivers/nvme/target/discovery.c70
-rw-r--r--drivers/nvme/target/fabrics-cmd.c15
-rw-r--r--drivers/nvme/target/fc.c31
-rw-r--r--drivers/nvme/target/io-cmd-bdev.c43
-rw-r--r--drivers/nvme/target/io-cmd-file.c20
-rw-r--r--drivers/nvme/target/loop.c11
-rw-r--r--drivers/nvme/target/nvmet.h10
-rw-r--r--drivers/nvme/target/rdma.c8
-rw-r--r--drivers/nvme/target/tcp.c14
22 files changed, 748 insertions, 288 deletions
diff --git a/drivers/nvme/host/Kconfig b/drivers/nvme/host/Kconfig
index 2b36f052bfb9..c6439638a419 100644
--- a/drivers/nvme/host/Kconfig
+++ b/drivers/nvme/host/Kconfig
@@ -23,6 +23,16 @@ config NVME_MULTIPATH
/dev/nvmeXnY device will show up for each NVMe namespaces,
even if it is accessible through multiple controllers.
+config NVME_HWMON
+ bool "NVMe hardware monitoring"
+ depends on (NVME_CORE=y && HWMON=y) || (NVME_CORE=m && HWMON)
+ help
+ This provides support for NVMe hardware monitoring. If enabled,
+ a hardware monitoring device will be created for each NVMe drive
+ in the system.
+
+ If unsure, say N.
+
config NVME_FABRICS
tristate
diff --git a/drivers/nvme/host/Makefile b/drivers/nvme/host/Makefile
index 8a4b671c5f0c..fc7b26be692d 100644
--- a/drivers/nvme/host/Makefile
+++ b/drivers/nvme/host/Makefile
@@ -14,6 +14,7 @@ nvme-core-$(CONFIG_TRACING) += trace.o
nvme-core-$(CONFIG_NVME_MULTIPATH) += multipath.o
nvme-core-$(CONFIG_NVM) += lightnvm.o
nvme-core-$(CONFIG_FAULT_INJECTION_DEBUG_FS) += fault_inject.o
+nvme-core-$(CONFIG_NVME_HWMON) += hwmon.o
nvme-y += pci.o
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 522280eb4115..6ec589268b9d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -116,10 +116,26 @@ static void nvme_queue_scan(struct nvme_ctrl *ctrl)
/*
* Only new queue scan work when admin and IO queues are both alive
*/
- if (ctrl->state == NVME_CTRL_LIVE)
+ if (ctrl->state == NVME_CTRL_LIVE && ctrl->tagset)
queue_work(nvme_wq, &ctrl->scan_work);
}
+/*
+ * Use this function to proceed with scheduling reset_work for a controller
+ * that had previously been set to the resetting state. This is intended for
+ * code paths that can't be interrupted by other reset attempts. A hot removal
+ * may prevent this from succeeding.
+ */
+int nvme_try_sched_reset(struct nvme_ctrl *ctrl)
+{
+ if (ctrl->state != NVME_CTRL_RESETTING)
+ return -EBUSY;
+ if (!queue_work(nvme_reset_wq, &ctrl->reset_work))
+ return -EBUSY;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(nvme_try_sched_reset);
+
int nvme_reset_ctrl(struct nvme_ctrl *ctrl)
{
if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_RESETTING))
@@ -137,8 +153,7 @@ int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl)
ret = nvme_reset_ctrl(ctrl);
if (!ret) {
flush_work(&ctrl->reset_work);
- if (ctrl->state != NVME_CTRL_LIVE &&
- ctrl->state != NVME_CTRL_ADMIN_ONLY)
+ if (ctrl->state != NVME_CTRL_LIVE)
ret = -ENETRESET;
}
@@ -268,6 +283,8 @@ void nvme_complete_rq(struct request *req)
trace_nvme_complete_rq(req);
+ nvme_cleanup_cmd(req);
+
if (nvme_req(req)->ctrl->kas)
nvme_req(req)->ctrl->comp_seen = true;
@@ -298,7 +315,7 @@ bool nvme_cancel_request(struct request *req, void *data, bool reserved)
if (blk_mq_request_completed(req))
return true;
- nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR;
+ nvme_req(req)->status = NVME_SC_HOST_ABORTED_CMD;
blk_mq_complete_request(req);
return true;
}
@@ -315,15 +332,6 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
old_state = ctrl->state;
switch (new_state) {
- case NVME_CTRL_ADMIN_ONLY:
- switch (old_state) {
- case NVME_CTRL_CONNECTING:
- changed = true;
- /* FALLTHRU */
- default:
- break;
- }
- break;
case NVME_CTRL_LIVE:
switch (old_state) {
case NVME_CTRL_NEW:
@@ -339,7 +347,6 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
switch (old_state) {
case NVME_CTRL_NEW:
case NVME_CTRL_LIVE:
- case NVME_CTRL_ADMIN_ONLY:
changed = true;
/* FALLTHRU */
default:
@@ -359,7 +366,6 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
case NVME_CTRL_DELETING:
switch (old_state) {
case NVME_CTRL_LIVE:
- case NVME_CTRL_ADMIN_ONLY:
case NVME_CTRL_RESETTING:
case NVME_CTRL_CONNECTING:
changed = true;
@@ -381,8 +387,10 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
break;
}
- if (changed)
+ if (changed) {
ctrl->state = new_state;
+ wake_up_all(&ctrl->state_wq);
+ }
spin_unlock_irqrestore(&ctrl->lock, flags);
if (changed && ctrl->state == NVME_CTRL_LIVE)
@@ -391,6 +399,39 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
}
EXPORT_SYMBOL_GPL(nvme_change_ctrl_state);
+/*
+ * Returns true for sink states that can't ever transition back to live.
+ */
+static bool nvme_state_terminal(struct nvme_ctrl *ctrl)
+{
+ switch (ctrl->state) {
+ case NVME_CTRL_NEW:
+ case NVME_CTRL_LIVE:
+ case NVME_CTRL_RESETTING:
+ case NVME_CTRL_CONNECTING:
+ return false;
+ case NVME_CTRL_DELETING:
+ case NVME_CTRL_DEAD:
+ return true;
+ default:
+ WARN_ONCE(1, "Unhandled ctrl state:%d", ctrl->state);
+ return true;
+ }
+}
+
+/*
+ * Waits for the controller state to be resetting, or returns false if it is
+ * not possible to ever transition to that state.
+ */
+bool nvme_wait_reset(struct nvme_ctrl *ctrl)
+{
+ wait_event(ctrl->state_wq,
+ nvme_change_ctrl_state(ctrl, NVME_CTRL_RESETTING) ||
+ nvme_state_terminal(ctrl));
+ return ctrl->state == NVME_CTRL_RESETTING;
+}
+EXPORT_SYMBOL_GPL(nvme_wait_reset);
+
static void nvme_free_ns_head(struct kref *ref)
{
struct nvme_ns_head *head =
@@ -572,8 +613,14 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
struct nvme_dsm_range *range;
struct bio *bio;
- range = kmalloc_array(segments, sizeof(*range),
- GFP_ATOMIC | __GFP_NOWARN);
+ /*
+ * Some devices do not consider the DSM 'Number of Ranges' field when
+ * determining how much data to DMA. Always allocate memory for maximum
+ * number of segments to prevent device reading beyond end of buffer.
+ */
+ static const size_t alloc_size = sizeof(*range) * NVME_DSM_MAX_RANGES;
+
+ range = kzalloc(alloc_size, GFP_ATOMIC | __GFP_NOWARN);
if (!range) {
/*
* If we fail allocation our range, fallback to the controller
@@ -587,7 +634,7 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
}
__rq_for_each_bio(bio, req) {
- u64 slba = nvme_block_nr(ns, bio->bi_iter.bi_sector);
+ u64 slba = nvme_sect_to_lba(ns, bio->bi_iter.bi_sector);
u32 nlb = bio->bi_iter.bi_size >> ns->lba_shift;
if (n < segments) {
@@ -613,7 +660,7 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
req->special_vec.bv_page = virt_to_page(range);
req->special_vec.bv_offset = offset_in_page(range);
- req->special_vec.bv_len = sizeof(*range) * segments;
+ req->special_vec.bv_len = alloc_size;
req->rq_flags |= RQF_SPECIAL_PAYLOAD;
return BLK_STS_OK;
@@ -628,7 +675,7 @@ static inline blk_status_t nvme_setup_write_zeroes(struct nvme_ns *ns,
cmnd->write_zeroes.opcode = nvme_cmd_write_zeroes;
cmnd->write_zeroes.nsid = cpu_to_le32(ns->head->ns_id);
cmnd->write_zeroes.slba =
- cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req)));
+ cpu_to_le64(nvme_sect_to_lba(ns, blk_rq_pos(req)));
cmnd->write_zeroes.length =
cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
cmnd->write_zeroes.control = 0;
@@ -652,7 +699,7 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
cmnd->rw.opcode = (rq_data_dir(req) ? nvme_cmd_write : nvme_cmd_read);
cmnd->rw.nsid = cpu_to_le32(ns->head->ns_id);
- cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req)));
+ 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);
if (req_op(req) == REQ_OP_WRITE && ctrl->nr_streams)
@@ -1306,8 +1353,6 @@ static void nvme_update_formats(struct nvme_ctrl *ctrl)
if (ns->disk && nvme_revalidate_disk(ns->disk))
nvme_set_queue_dying(ns);
up_read(&ctrl->namespaces_rwsem);
-
- nvme_remove_invalid_namespaces(ctrl, NVME_NSID_ALL);
}
static void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects)
@@ -1323,6 +1368,7 @@ static void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects)
nvme_unfreeze(ctrl);
nvme_mpath_unfreeze(ctrl->subsys);
mutex_unlock(&ctrl->subsys->lock);
+ nvme_remove_invalid_namespaces(ctrl, NVME_NSID_ALL);
mutex_unlock(&ctrl->scan_lock);
}
if (effects & NVME_CMD_EFFECTS_CCC)
@@ -1609,7 +1655,7 @@ static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type)
static void nvme_set_chunk_size(struct nvme_ns *ns)
{
- u32 chunk_size = (((u32)ns->noiob) << (ns->lba_shift - 9));
+ u32 chunk_size = nvme_lba_to_sect(ns, ns->noiob);
blk_queue_chunk_sectors(ns->queue, rounddown_pow_of_two(chunk_size));
}
@@ -1646,8 +1692,7 @@ static void nvme_config_discard(struct gendisk *disk, struct nvme_ns *ns)
static void nvme_config_write_zeroes(struct gendisk *disk, struct nvme_ns *ns)
{
- u32 max_sectors;
- unsigned short bs = 1 << ns->lba_shift;
+ u64 max_blocks;
if (!(ns->ctrl->oncs & NVME_CTRL_ONCS_WRITE_ZEROES) ||
(ns->ctrl->quirks & NVME_QUIRK_DISABLE_WRITE_ZEROES))
@@ -1663,11 +1708,12 @@ static void nvme_config_write_zeroes(struct gendisk *disk, struct nvme_ns *ns)
* nvme_init_identify() if available.
*/
if (ns->ctrl->max_hw_sectors == UINT_MAX)
- max_sectors = ((u32)(USHRT_MAX + 1) * bs) >> 9;
+ max_blocks = (u64)USHRT_MAX + 1;
else
- max_sectors = ((u32)(ns->ctrl->max_hw_sectors + 1) * bs) >> 9;
+ max_blocks = ns->ctrl->max_hw_sectors + 1;
- blk_queue_max_write_zeroes_sectors(disk->queue, max_sectors);
+ blk_queue_max_write_zeroes_sectors(disk->queue,
+ nvme_lba_to_sect(ns, max_blocks));
}
static int nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
@@ -1710,7 +1756,7 @@ static bool nvme_ns_ids_equal(struct nvme_ns_ids *a, struct nvme_ns_ids *b)
static void nvme_update_disk_info(struct gendisk *disk,
struct nvme_ns *ns, struct nvme_id_ns *id)
{
- sector_t capacity = le64_to_cpu(id->nsze) << (ns->lba_shift - 9);
+ sector_t capacity = nvme_lba_to_sect(ns, le64_to_cpu(id->nsze));
unsigned short bs = 1 << ns->lba_shift;
u32 atomic_bs, phys_bs, io_opt;
@@ -2758,6 +2804,9 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
ctrl->oncs = le16_to_cpu(id->oncs);
ctrl->mtfa = le16_to_cpu(id->mtfa);
ctrl->oaes = le32_to_cpu(id->oaes);
+ ctrl->wctemp = le16_to_cpu(id->wctemp);
+ ctrl->cctemp = le16_to_cpu(id->cctemp);
+
atomic_set(&ctrl->abort_limit, id->acl + 1);
ctrl->vwc = id->vwc;
if (id->mdts)
@@ -2857,6 +2906,9 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
if (ret < 0)
return ret;
+ if (!ctrl->identified)
+ nvme_hwmon_init(ctrl);
+
ctrl->identified = true;
return 0;
@@ -2874,7 +2926,6 @@ static int nvme_dev_open(struct inode *inode, struct file *file)
switch (ctrl->state) {
case NVME_CTRL_LIVE:
- case NVME_CTRL_ADMIN_ONLY:
break;
default:
return -EWOULDBLOCK;
@@ -3168,7 +3219,6 @@ static ssize_t nvme_sysfs_show_state(struct device *dev,
static const char *const state_name[] = {
[NVME_CTRL_NEW] = "new",
[NVME_CTRL_LIVE] = "live",
- [NVME_CTRL_ADMIN_ONLY] = "only-admin",
[NVME_CTRL_RESETTING] = "resetting",
[NVME_CTRL_CONNECTING] = "connecting",
[NVME_CTRL_DELETING] = "deleting",
@@ -3679,11 +3729,10 @@ static void nvme_scan_work(struct work_struct *work)
struct nvme_id_ctrl *id;
unsigned nn;
- if (ctrl->state != NVME_CTRL_LIVE)
+ /* No tagset on a live ctrl means IO queues could not created */
+ if (ctrl->state != NVME_CTRL_LIVE || !ctrl->tagset)
return;
- WARN_ON_ONCE(!ctrl->tagset);
-
if (test_and_clear_bit(NVME_AER_NOTICE_NS_CHANGED, &ctrl->events)) {
dev_info(ctrl->device, "rescanning namespaces.\n");
nvme_clear_changed_ns_log(ctrl);
@@ -3844,13 +3893,13 @@ static void nvme_fw_act_work(struct work_struct *work)
if (time_after(jiffies, fw_act_timeout)) {
dev_warn(ctrl->device,
"Fw activation timeout, reset controller\n");
- nvme_reset_ctrl(ctrl);
- break;
+ nvme_try_sched_reset(ctrl);
+ return;
}
msleep(100);
}
- if (ctrl->state != NVME_CTRL_LIVE)
+ if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_LIVE))
return;
nvme_start_queues(ctrl);
@@ -3870,7 +3919,13 @@ static void nvme_handle_aen_notice(struct nvme_ctrl *ctrl, u32 result)
nvme_queue_scan(ctrl);
break;
case NVME_AER_NOTICE_FW_ACT_STARTING:
- queue_work(nvme_wq, &ctrl->fw_act_work);
+ /*
+ * We are (ab)using the RESETTING state to prevent subsequent
+ * recovery actions from interfering with the controller's
+ * firmware activation.
+ */
+ if (nvme_change_ctrl_state(ctrl, NVME_CTRL_RESETTING))
+ queue_work(nvme_wq, &ctrl->fw_act_work);
break;
#ifdef CONFIG_NVME_MULTIPATH
case NVME_AER_NOTICE_ANA:
@@ -3993,6 +4048,7 @@ int nvme_init_ctrl(struct nvme_ctrl *ctrl, struct device *dev,
INIT_WORK(&ctrl->async_event_work, nvme_async_event_work);
INIT_WORK(&ctrl->fw_act_work, nvme_fw_act_work);
INIT_WORK(&ctrl->delete_work, nvme_delete_ctrl_work);
+ init_waitqueue_head(&ctrl->state_wq);
INIT_DELAYED_WORK(&ctrl->ka_work, nvme_keep_alive_work);
memset(&ctrl->ka_cmd, 0, sizeof(ctrl->ka_cmd));
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index 93f08d77c896..a0ec40ab62ee 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -182,8 +182,7 @@ bool nvmf_ip_options_match(struct nvme_ctrl *ctrl,
static inline bool nvmf_check_ready(struct nvme_ctrl *ctrl, struct request *rq,
bool queue_live)
{
- if (likely(ctrl->state == NVME_CTRL_LIVE ||
- ctrl->state == NVME_CTRL_ADMIN_ONLY))
+ if (likely(ctrl->state == NVME_CTRL_LIVE))
return true;
return __nvmf_check_ready(ctrl, rq, queue_live);
}
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 265f89e11d8b..679a721ae229 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -1224,7 +1224,7 @@ nvme_fc_connect_admin_queue(struct nvme_fc_ctrl *ctrl,
lsreq->rqstlen = sizeof(*assoc_rqst);
lsreq->rspaddr = assoc_acc;
lsreq->rsplen = sizeof(*assoc_acc);
- lsreq->timeout = NVME_FC_CONNECT_TIMEOUT_SEC;
+ lsreq->timeout = NVME_FC_LS_TIMEOUT_SEC;
ret = nvme_fc_send_ls_req(ctrl->rport, lsop);
if (ret)
@@ -1264,7 +1264,7 @@ nvme_fc_connect_admin_queue(struct nvme_fc_ctrl *ctrl,
if (fcret) {
ret = -EBADF;
dev_err(ctrl->dev,
- "q %d connect failed: %s\n",
+ "q %d Create Association LS failed: %s\n",
queue->qnum, validation_errors[fcret]);
} else {
ctrl->association_id =
@@ -1332,7 +1332,7 @@ nvme_fc_connect_queue(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
lsreq->rqstlen = sizeof(*conn_rqst);
lsreq->rspaddr = conn_acc;
lsreq->rsplen = sizeof(*conn_acc);
- lsreq->timeout = NVME_FC_CONNECT_TIMEOUT_SEC;
+ lsreq->timeout = NVME_FC_LS_TIMEOUT_SEC;
ret = nvme_fc_send_ls_req(ctrl->rport, lsop);
if (ret)
@@ -1363,7 +1363,7 @@ nvme_fc_connect_queue(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
if (fcret) {
ret = -EBADF;
dev_err(ctrl->dev,
- "q %d connect failed: %s\n",
+ "q %d Create I/O Connection LS failed: %s\n",
queue->qnum, validation_errors[fcret]);
} else {
queue->connection_id =
@@ -1376,7 +1376,7 @@ out_free_buffer:
out_no_memory:
if (ret)
dev_err(ctrl->dev,
- "queue %d connect command failed (%d).\n",
+ "queue %d connect I/O queue failed (%d).\n",
queue->qnum, ret);
return ret;
}
@@ -1413,8 +1413,8 @@ nvme_fc_disconnect_assoc_done(struct nvmefc_ls_req *lsreq, int status)
static void
nvme_fc_xmt_disconnect_assoc(struct nvme_fc_ctrl *ctrl)
{
- struct fcnvme_ls_disconnect_rqst *discon_rqst;
- struct fcnvme_ls_disconnect_acc *discon_acc;
+ struct fcnvme_ls_disconnect_assoc_rqst *discon_rqst;
+ struct fcnvme_ls_disconnect_assoc_acc *discon_acc;
struct nvmefc_ls_req_op *lsop;
struct nvmefc_ls_req *lsreq;
int ret;
@@ -1430,11 +1430,11 @@ nvme_fc_xmt_disconnect_assoc(struct nvme_fc_ctrl *ctrl)
lsreq = &lsop->ls_req;
lsreq->private = (void *)&lsop[1];
- discon_rqst = (struct fcnvme_ls_disconnect_rqst *)
+ discon_rqst = (struct fcnvme_ls_disconnect_assoc_rqst *)
(lsreq->private + ctrl->lport->ops->lsrqst_priv_sz);
- discon_acc = (struct fcnvme_ls_disconnect_acc *)&discon_rqst[1];
+ discon_acc = (struct fcnvme_ls_disconnect_assoc_acc *)&discon_rqst[1];
- discon_rqst->w0.ls_cmd = FCNVME_LS_DISCONNECT;
+ discon_rqst->w0.ls_cmd = FCNVME_LS_DISCONNECT_ASSOC;
discon_rqst->desc_list_len = cpu_to_be32(
sizeof(struct fcnvme_lsdesc_assoc_id) +
sizeof(struct fcnvme_lsdesc_disconn_cmd));
@@ -1451,22 +1451,17 @@ nvme_fc_xmt_disconnect_assoc(struct nvme_fc_ctrl *ctrl)
discon_rqst->discon_cmd.desc_len =
fcnvme_lsdesc_len(
sizeof(struct fcnvme_lsdesc_disconn_cmd));
- discon_rqst->discon_cmd.scope = FCNVME_DISCONN_ASSOCIATION;
- discon_rqst->discon_cmd.id = cpu_to_be64(ctrl->association_id);
lsreq->rqstaddr = discon_rqst;
lsreq->rqstlen = sizeof(*discon_rqst);
lsreq->rspaddr = discon_acc;
lsreq->rsplen = sizeof(*discon_acc);
- lsreq->timeout = NVME_FC_CONNECT_TIMEOUT_SEC;
+ lsreq->timeout = NVME_FC_LS_TIMEOUT_SEC;
ret = nvme_fc_send_ls_req_async(ctrl->rport, lsop,
nvme_fc_disconnect_assoc_done);
if (ret)
kfree(lsop);
-
- /* only meaningful part to terminating the association */
- ctrl->association_id = 0;
}
@@ -1662,7 +1657,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
(freq->rcv_rsplen / 4) ||
be32_to_cpu(op->rsp_iu.xfrd_len) !=
freq->transferred_length ||
- op->rsp_iu.status_code ||
+ op->rsp_iu.ersp_result ||
sqe->common.command_id != cqe->command_id)) {
status = cpu_to_le16(NVME_SC_HOST_PATH_ERROR << 1);
dev_info(ctrl->ctrl.device,
@@ -1672,7 +1667,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
ctrl->cnum, be16_to_cpu(op->rsp_iu.iu_len),
be32_to_cpu(op->rsp_iu.xfrd_len),
freq->transferred_length,
- op->rsp_iu.status_code,
+ op->rsp_iu.ersp_result,
sqe->common.command_id,
cqe->command_id);
goto done;
@@ -1731,9 +1726,14 @@ __nvme_fc_init_request(struct nvme_fc_ctrl *ctrl,
op->rq = rq;
op->rqno = rqno;
- cmdiu->scsi_id = NVME_CMD_SCSI_ID;
+ cmdiu->format_id = NVME_CMD_FORMAT_ID;
cmdiu->fc_id = NVME_CMD_FC_ID;
cmdiu->iu_len = cpu_to_be16(sizeof(*cmdiu) / sizeof(u32));
+ if (queue->qnum)
+ cmdiu->rsv_cat = fccmnd_set_cat_css(0,
+ (NVME_CC_CSS_NVM >> NVME_CC_CSS_SHIFT));
+ else
+ cmdiu->rsv_cat = fccmnd_set_cat_admin(0);
op->fcp_req.cmddma = fc_dma_map_single(ctrl->lport->dev,
&op->cmd_iu, sizeof(op->cmd_iu), DMA_TO_DEVICE);
@@ -2173,8 +2173,6 @@ nvme_fc_unmap_data(struct nvme_fc_ctrl *ctrl, struct request *rq,
fc_dma_unmap_sg(ctrl->lport->dev, freq->sg_table.sgl, op->nents,
rq_dma_dir(rq));
- nvme_cleanup_cmd(rq);
-
sg_free_table_chained(&freq->sg_table, SG_CHUNK_SIZE);
freq->sg_cnt = 0;
@@ -2305,6 +2303,7 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
if (!(op->flags & FCOP_FLAGS_AEN))
nvme_fc_unmap_data(ctrl, op->rq, op);
+ nvme_cleanup_cmd(op->rq);
nvme_fc_ctrl_put(ctrl);
if (ctrl->rport->remoteport.port_state == FC_OBJSTATE_ONLINE &&
@@ -2695,7 +2694,7 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
/* warn if maxcmd is lower than queue_size */
dev_warn(ctrl->ctrl.device,
"queue_size %zu > ctrl maxcmd %u, reducing "
- "to queue_size\n",
+ "to maxcmd\n",
opts->queue_size, ctrl->ctrl.maxcmd);
opts->queue_size = ctrl->ctrl.maxcmd;
}
@@ -2703,7 +2702,8 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
if (opts->queue_size > ctrl->ctrl.sqsize + 1) {
/* warn if sqsize is lower than queue_size */
dev_warn(ctrl->ctrl.device,
- "queue_size %zu > ctrl sqsize %u, clamping down\n",
+ "queue_size %zu > ctrl sqsize %u, reducing "
+ "to sqsize\n",
opts->queue_size, ctrl->ctrl.sqsize + 1);
opts->queue_size = ctrl->ctrl.sqsize + 1;
}
@@ -2739,6 +2739,7 @@ out_term_aen_ops:
out_disconnect_admin_queue:
/* send a Disconnect(association) LS to fc-nvme target */
nvme_fc_xmt_disconnect_assoc(ctrl);
+ ctrl->association_id = 0;
out_delete_hw_queue:
__nvme_fc_delete_hw_queue(ctrl, &ctrl->queues[0], 0);
out_free_queue:
@@ -2830,6 +2831,8 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl)
if (ctrl->association_id)
nvme_fc_xmt_disconnect_assoc(ctrl);
+ ctrl->association_id = 0;
+
if (ctrl->ctrl.tagset) {
nvme_fc_delete_hw_io_queues(ctrl);
nvme_fc_free_io_queues(ctrl);
diff --git a/drivers/nvme/host/hwmon.c b/drivers/nvme/host/hwmon.c
new file mode 100644
index 000000000000..a5af21f5d370
--- /dev/null
+++ b/drivers/nvme/host/hwmon.c
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NVM Express hardware monitoring support
+ * Copyright (c) 2019, Guenter Roeck
+ */
+
+#include <linux/hwmon.h>
+#include <asm/unaligned.h>
+
+#include "nvme.h"
+
+/* These macros should be moved to linux/temperature.h */
+#define MILLICELSIUS_TO_KELVIN(t) DIV_ROUND_CLOSEST((t) + 273150, 1000)
+#define KELVIN_TO_MILLICELSIUS(t) ((t) * 1000L - 273150)
+
+struct nvme_hwmon_data {
+ struct nvme_ctrl *ctrl;
+ struct nvme_smart_log log;
+ struct mutex read_lock;
+};
+
+static int nvme_get_temp_thresh(struct nvme_ctrl *ctrl, int sensor, bool under,
+ long *temp)
+{
+ unsigned int threshold = sensor << NVME_TEMP_THRESH_SELECT_SHIFT;
+ u32 status;
+ int ret;
+
+ if (under)
+ threshold |= NVME_TEMP_THRESH_TYPE_UNDER;
+
+ ret = nvme_get_features(ctrl, NVME_FEAT_TEMP_THRESH, threshold, NULL, 0,
+ &status);
+ if (ret > 0)
+ return -EIO;
+ if (ret < 0)
+ return ret;
+ *temp = KELVIN_TO_MILLICELSIUS(status & NVME_TEMP_THRESH_MASK);
+
+ return 0;
+}
+
+static int nvme_set_temp_thresh(struct nvme_ctrl *ctrl, int sensor, bool under,
+ long temp)
+{
+ unsigned int threshold = sensor << NVME_TEMP_THRESH_SELECT_SHIFT;
+ int ret;
+
+ temp = MILLICELSIUS_TO_KELVIN(temp);
+ threshold |= clamp_val(temp, 0, NVME_TEMP_THRESH_MASK);
+
+ if (under)
+ threshold |= NVME_TEMP_THRESH_TYPE_UNDER;
+
+ ret = nvme_set_features(ctrl, NVME_FEAT_TEMP_THRESH, threshold, NULL, 0,
+ NULL);
+ if (ret > 0)
+ return -EIO;
+
+ return ret;
+}
+
+static int nvme_hwmon_get_smart_log(struct nvme_hwmon_data *data)
+{
+ int ret;
+
+ ret = nvme_get_log(data->ctrl, NVME_NSID_ALL, NVME_LOG_SMART, 0,
+ &data->log, sizeof(data->log), 0);
+
+ return ret <= 0 ? ret : -EIO;
+}
+
+static int nvme_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
+{
+ struct nvme_hwmon_data *data = dev_get_drvdata(dev);
+ struct nvme_smart_log *log = &data->log;
+ int temp;
+ int err;
+
+ /*
+ * First handle attributes which don't require us to read
+ * the smart log.
+ */
+ switch (attr) {
+ case hwmon_temp_max:
+ return nvme_get_temp_thresh(data->ctrl, channel, false, val);
+ case hwmon_temp_min:
+ return nvme_get_temp_thresh(data->ctrl, channel, true, val);
+ case hwmon_temp_crit:
+ *val = KELVIN_TO_MILLICELSIUS(data->ctrl->cctemp);
+ return 0;
+ default:
+ break;
+ }
+
+ mutex_lock(&data->read_lock);
+ err = nvme_hwmon_get_smart_log(data);
+ if (err)
+ goto unlock;
+
+ switch (attr) {
+ case hwmon_temp_input:
+ if (!channel)
+ temp = get_unaligned_le16(log->temperature);
+ else
+ temp = le16_to_cpu(log->temp_sensor[channel - 1]);
+ *val = KELVIN_TO_MILLICELSIUS(temp);
+ break;
+ case hwmon_temp_alarm:
+ *val = !!(log->critical_warning & NVME_SMART_CRIT_TEMPERATURE);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+unlock:
+ mutex_unlock(&data->read_lock);
+ return err;
+}
+
+static int nvme_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long val)
+{
+ struct nvme_hwmon_data *data = dev_get_drvdata(dev);
+
+ switch (attr) {
+ case hwmon_temp_max:
+ return nvme_set_temp_thresh(data->ctrl, channel, false, val);
+ case hwmon_temp_min:
+ return nvme_set_temp_thresh(data->ctrl, channel, true, val);
+ default:
+ break;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+static const char * const nvme_hwmon_sensor_names[] = {
+ "Composite",
+ "Sensor 1",
+ "Sensor 2",
+ "Sensor 3",
+ "Sensor 4",
+ "Sensor 5",
+ "Sensor 6",
+ "Sensor 7",
+ "Sensor 8",
+};
+
+static int nvme_hwmon_read_string(struct device *dev,
+ enum hwmon_sensor_types type, u32 attr,
+ int channel, const char **str)
+{
+ *str = nvme_hwmon_sensor_names[channel];
+ return 0;
+}
+
+static umode_t nvme_hwmon_is_visible(const void *_data,
+ enum hwmon_sensor_types type,
+ u32 attr, int channel)
+{
+ const struct nvme_hwmon_data *data = _data;
+
+ switch (attr) {
+ case hwmon_temp_crit:
+ if (!channel && data->ctrl->cctemp)
+ return 0444;
+ break;
+ case hwmon_temp_max:
+ case hwmon_temp_min:
+ if ((!channel && data->ctrl->wctemp) ||
+ (channel && data->log.temp_sensor[channel - 1])) {
+ if (data->ctrl->quirks &
+ NVME_QUIRK_NO_TEMP_THRESH_CHANGE)
+ return 0444;
+ return 0644;
+ }
+ break;
+ case hwmon_temp_alarm:
+ if (!channel)
+ return 0444;
+ break;
+ case hwmon_temp_input:
+ case hwmon_temp_label:
+ if (!channel || data->log.temp_sensor[channel - 1])
+ return 0444;
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static const struct hwmon_channel_info *nvme_hwmon_info[] = {
+ HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ),
+ HWMON_CHANNEL_INFO(temp,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_CRIT | HWMON_T_LABEL | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_LABEL),
+ NULL
+};
+
+static const struct hwmon_ops nvme_hwmon_ops = {
+ .is_visible = nvme_hwmon_is_visible,
+ .read = nvme_hwmon_read,
+ .read_string = nvme_hwmon_read_string,
+ .write = nvme_hwmon_write,
+};
+
+static const struct hwmon_chip_info nvme_hwmon_chip_info = {
+ .ops = &nvme_hwmon_ops,
+ .info = nvme_hwmon_info,
+};
+
+void nvme_hwmon_init(struct nvme_ctrl *ctrl)
+{
+ struct device *dev = ctrl->dev;
+ struct nvme_hwmon_data *data;
+ struct device *hwmon;
+ int err;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return;
+
+ data->ctrl = ctrl;
+ mutex_init(&data->read_lock);
+
+ err = nvme_hwmon_get_smart_log(data);
+ if (err) {
+ dev_warn(dev, "Failed to read smart log (error %d)\n", err);
+ devm_kfree(dev, data);
+ return;
+ }
+
+ hwmon = devm_hwmon_device_register_with_info(dev, "nvme", data,
+ &nvme_hwmon_chip_info,
+ NULL);
+ if (IS_ERR(hwmon)) {
+ dev_warn(dev, "Failed to instantiate hwmon device\n");
+ devm_kfree(dev, data);
+ }
+}
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 30de7efef003..797c18337d96 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -95,6 +95,7 @@ void nvme_failover_req(struct request *req)
}
break;
case NVME_SC_HOST_PATH_ERROR:
+ case NVME_SC_HOST_ABORTED_CMD:
/*
* Temporary transport disruption in talking to the controller.
* Try to send on a new path.
@@ -158,9 +159,11 @@ void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl)
struct nvme_ns *ns;
mutex_lock(&ctrl->scan_lock);
+ down_read(&ctrl->namespaces_rwsem);
list_for_each_entry(ns, &ctrl->namespaces, list)
if (nvme_mpath_clear_current_path(ns))
kblockd_schedule_work(&ns->head->requeue_work);
+ up_read(&ctrl->namespaces_rwsem);
mutex_unlock(&ctrl->scan_lock);
}
@@ -444,8 +447,14 @@ static int nvme_parse_ana_log(struct nvme_ctrl *ctrl, void *data,
for (i = 0; i < le16_to_cpu(ctrl->ana_log_buf->ngrps); i++) {
struct nvme_ana_group_desc *desc = base + offset;
- u32 nr_nsids = le32_to_cpu(desc->nnsids);
- size_t nsid_buf_size = nr_nsids * sizeof(__le32);
+ u32 nr_nsids;
+ size_t nsid_buf_size;
+
+ if (WARN_ON_ONCE(offset > ctrl->ana_log_size - sizeof(*desc)))
+ return -EINVAL;
+
+ nr_nsids = le32_to_cpu(desc->nnsids);
+ nsid_buf_size = nr_nsids * sizeof(__le32);
if (WARN_ON_ONCE(desc->grpid == 0))
return -EINVAL;
@@ -465,8 +474,6 @@ static int nvme_parse_ana_log(struct nvme_ctrl *ctrl, void *data,
return error;
offset += nsid_buf_size;
- if (WARN_ON_ONCE(offset > ctrl->ana_log_size - sizeof(*desc)))
- return -EINVAL;
}
return 0;
@@ -522,14 +529,13 @@ static int nvme_update_ana_state(struct nvme_ctrl *ctrl,
return 0;
}
-static int nvme_read_ana_log(struct nvme_ctrl *ctrl, bool groups_only)
+static int nvme_read_ana_log(struct nvme_ctrl *ctrl)
{
u32 nr_change_groups = 0;
int error;
mutex_lock(&ctrl->ana_lock);
- error = nvme_get_log(ctrl, NVME_NSID_ALL, NVME_LOG_ANA,
- groups_only ? NVME_ANA_LOG_RGO : 0,
+ error = nvme_get_log(ctrl, NVME_NSID_ALL, NVME_LOG_ANA, 0,
ctrl->ana_log_buf, ctrl->ana_log_size, 0);
if (error) {
dev_warn(ctrl->device, "Failed to get ANA log: %d\n", error);
@@ -565,7 +571,7 @@ static void nvme_ana_work(struct work_struct *work)
{
struct nvme_ctrl *ctrl = container_of(work, struct nvme_ctrl, ana_work);
- nvme_read_ana_log(ctrl, false);
+ nvme_read_ana_log(ctrl);
}
static void nvme_anatt_timeout(struct timer_list *t)
@@ -715,7 +721,7 @@ int nvme_mpath_init(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
goto out;
}
- error = nvme_read_ana_log(ctrl, true);
+ error = nvme_read_ana_log(ctrl);
if (error)
goto out_free_ana_log_buf;
return 0;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 38a83ef5bcd3..3b9cbe0668fa 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -15,6 +15,7 @@
#include <linux/sed-opal.h>
#include <linux/fault-inject.h>
#include <linux/rcupdate.h>
+#include <linux/wait.h>
#include <trace/events/block.h>
@@ -114,6 +115,11 @@ enum nvme_quirks {
* Prevent tag overlap between queues
*/
NVME_QUIRK_SHARED_TAGS = (1 << 13),
+
+ /*
+ * Don't change the value of the temperature threshold feature
+ */
+ NVME_QUIRK_NO_TEMP_THRESH_CHANGE = (1 << 14),
};
/*
@@ -161,7 +167,6 @@ static inline u16 nvme_req_qid(struct request *req)
enum nvme_ctrl_state {
NVME_CTRL_NEW,
NVME_CTRL_LIVE,
- NVME_CTRL_ADMIN_ONLY, /* Only admin queue live */
NVME_CTRL_RESETTING,
NVME_CTRL_CONNECTING,
NVME_CTRL_DELETING,
@@ -199,6 +204,7 @@ struct nvme_ctrl {
struct cdev cdev;
struct work_struct reset_work;
struct work_struct delete_work;
+ wait_queue_head_t state_wq;
struct nvme_subsystem *subsys;
struct list_head subsys_entry;
@@ -230,6 +236,8 @@ struct nvme_ctrl {
u16 kas;
u8 npss;
u8 apsta;
+ u16 wctemp;
+ u16 cctemp;
u32 oaes;
u32 aen_result;
u32 ctratt;
@@ -418,9 +426,20 @@ static inline int nvme_reset_subsystem(struct nvme_ctrl *ctrl)
return ctrl->ops->reg_write32(ctrl, NVME_REG_NSSR, 0x4E564D65);
}
-static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector)
+/*
+ * Convert a 512B sector number to a device logical block number.
+ */
+static inline u64 nvme_sect_to_lba(struct nvme_ns *ns, sector_t sector)
+{
+ return sector >> (ns->lba_shift - SECTOR_SHIFT);
+}
+
+/*
+ * Convert a device logical block number to a 512B sector number.
+ */
+static inline sector_t nvme_lba_to_sect(struct nvme_ns *ns, u64 lba)
{
- return (sector >> (ns->lba_shift - 9));
+ return lba << (ns->lba_shift - SECTOR_SHIFT);
}
static inline void nvme_end_request(struct request *req, __le16 status,
@@ -445,10 +464,16 @@ static inline void nvme_put_ctrl(struct nvme_ctrl *ctrl)
put_device(ctrl->device);
}
+static inline bool nvme_is_aen_req(u16 qid, __u16 command_id)
+{
+ return !qid && command_id >= NVME_AQ_BLK_MQ_DEPTH;
+}
+
void nvme_complete_rq(struct request *req);
bool nvme_cancel_request(struct request *req, void *data, bool reserved);
bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
enum nvme_ctrl_state new_state);
+bool nvme_wait_reset(struct nvme_ctrl *ctrl);
int nvme_disable_ctrl(struct nvme_ctrl *ctrl);
int nvme_enable_ctrl(struct nvme_ctrl *ctrl);
int nvme_shutdown_ctrl(struct nvme_ctrl *ctrl);
@@ -499,6 +524,7 @@ int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count);
void nvme_stop_keep_alive(struct nvme_ctrl *ctrl);
int nvme_reset_ctrl(struct nvme_ctrl *ctrl);
int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl);
+int nvme_try_sched_reset(struct nvme_ctrl *ctrl);
int nvme_delete_ctrl(struct nvme_ctrl *ctrl);
int nvme_get_log(struct nvme_ctrl *ctrl, u32 nsid, u8 log_page, u8 lsp,
@@ -649,4 +675,10 @@ static inline struct nvme_ns *nvme_get_ns_from_dev(struct device *dev)
return dev_to_disk(dev)->private_data;
}
+#ifdef CONFIG_NVME_HWMON
+void nvme_hwmon_init(struct nvme_ctrl *ctrl);
+#else
+static inline void nvme_hwmon_init(struct nvme_ctrl *ctrl) { }
+#endif
+
#endif /* _NVME_H */
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index bb88681f4dc3..dcaad5831cee 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -773,7 +773,8 @@ static blk_status_t nvme_setup_prp_simple(struct nvme_dev *dev,
struct bio_vec *bv)
{
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
- unsigned int first_prp_len = dev->ctrl.page_size - bv->bv_offset;
+ unsigned int offset = bv->bv_offset & (dev->ctrl.page_size - 1);
+ unsigned int first_prp_len = dev->ctrl.page_size - offset;
iod->first_dma = dma_map_bvec(dev->dev, bv, rq_dma_dir(req), 0);
if (dma_mapping_error(dev->dev, iod->first_dma))
@@ -924,7 +925,6 @@ static void nvme_pci_complete_rq(struct request *req)
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
struct nvme_dev *dev = iod->nvmeq->dev;
- nvme_cleanup_cmd(req);
if (blk_integrity_rq(req))
dma_unmap_page(dev->dev, iod->meta_dma,
rq_integrity_vec(req)->bv_len, rq_data_dir(req));
@@ -967,8 +967,7 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, u16 idx)
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
- if (unlikely(nvmeq->qid == 0 &&
- cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
+ if (unlikely(nvme_is_aen_req(nvmeq->qid, cqe->command_id))) {
nvme_complete_async_event(&nvmeq->dev->ctrl,
cqe->status, &cqe->result);
return;
@@ -2263,10 +2262,7 @@ static bool __nvme_disable_io_queues(struct nvme_dev *dev, u8 opcode)
return true;
}
-/*
- * return error value only when tagset allocation failed
- */
-static int nvme_dev_add(struct nvme_dev *dev)
+static void nvme_dev_add(struct nvme_dev *dev)
{
int ret;
@@ -2296,7 +2292,7 @@ static int nvme_dev_add(struct nvme_dev *dev)
if (ret) {
dev_warn(dev->ctrl.device,
"IO queues tagset allocation failed %d\n", ret);
- return ret;
+ return;
}
dev->ctrl.tagset = &dev->tagset;
} else {
@@ -2307,7 +2303,6 @@ static int nvme_dev_add(struct nvme_dev *dev)
}
nvme_dbbuf_set(dev);
- return 0;
}
static int nvme_pci_enable(struct nvme_dev *dev)
@@ -2467,6 +2462,14 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
mutex_unlock(&dev->shutdown_lock);
}
+static int nvme_disable_prepare_reset(struct nvme_dev *dev, bool shutdown)
+{
+ if (!nvme_wait_reset(&dev->ctrl))
+ return -EBUSY;
+ nvme_dev_disable(dev, shutdown);
+ return 0;
+}
+
static int nvme_setup_prp_pools(struct nvme_dev *dev)
{
dev->prp_page_pool = dma_pool_create("prp list page", dev->dev,
@@ -2490,14 +2493,20 @@ static void nvme_release_prp_pools(struct nvme_dev *dev)
dma_pool_destroy(dev->prp_small_pool);
}
+static void nvme_free_tagset(struct nvme_dev *dev)
+{
+ if (dev->tagset.tags)
+ blk_mq_free_tag_set(&dev->tagset);
+ dev->ctrl.tagset = NULL;
+}
+
static void nvme_pci_free_ctrl(struct nvme_ctrl *ctrl)
{
struct nvme_dev *dev = to_nvme_dev(ctrl);
nvme_dbbuf_dma_free(dev);
put_device(dev->dev);
- if (dev->tagset.tags)
- blk_mq_free_tag_set(&dev->tagset);
+ nvme_free_tagset(dev);
if (dev->ctrl.admin_q)
blk_put_queue(dev->ctrl.admin_q);
kfree(dev->queues);
@@ -2508,6 +2517,11 @@ static void nvme_pci_free_ctrl(struct nvme_ctrl *ctrl)
static void nvme_remove_dead_ctrl(struct nvme_dev *dev)
{
+ /*
+ * Set state to deleting now to avoid blocking nvme_wait_reset(), which
+ * may be holding this pci_dev's device lock.
+ */
+ nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_DELETING);
nvme_get_ctrl(&dev->ctrl);
nvme_dev_disable(dev, false);
nvme_kill_queues(&dev->ctrl);
@@ -2521,7 +2535,6 @@ static void nvme_reset_work(struct work_struct *work)
container_of(work, struct nvme_dev, ctrl.reset_work);
bool was_suspend = !!(dev->ctrl.ctrl_config & NVME_CC_SHN_NORMAL);
int result;
- enum nvme_ctrl_state new_state = NVME_CTRL_LIVE;
if (WARN_ON(dev->ctrl.state != NVME_CTRL_RESETTING)) {
result = -ENODEV;
@@ -2615,13 +2628,11 @@ static void nvme_reset_work(struct work_struct *work)
dev_warn(dev->ctrl.device, "IO queues not created\n");
nvme_kill_queues(&dev->ctrl);
nvme_remove_namespaces(&dev->ctrl);
- new_state = NVME_CTRL_ADMIN_ONLY;
+ nvme_free_tagset(dev);
} else {
nvme_start_queues(&dev->ctrl);
nvme_wait_freeze(&dev->ctrl);
- /* hit this only when allocate tagset fails */
- if (nvme_dev_add(dev))
- new_state = NVME_CTRL_ADMIN_ONLY;
+ nvme_dev_add(dev);
nvme_unfreeze(&dev->ctrl);
}
@@ -2629,9 +2640,9 @@ static void nvme_reset_work(struct work_struct *work)
* If only admin queue live, keep it to do further investigation or
* recovery.
*/
- if (!nvme_change_ctrl_state(&dev->ctrl, new_state)) {
+ if (!nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_LIVE)) {
dev_warn(dev->ctrl.device,
- "failed to mark controller state %d\n", new_state);
+ "failed to mark controller live state\n");
result = -ENODEV;
goto out;
}
@@ -2672,7 +2683,7 @@ static int nvme_pci_reg_write32(struct nvme_ctrl *ctrl, u32 off, u32 val)
static int nvme_pci_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val)
{
- *val = readq(to_nvme_dev(ctrl)->bar + off);
+ *val = lo_hi_readq(to_nvme_dev(ctrl)->bar + off);
return 0;
}
@@ -2836,19 +2847,28 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
static void nvme_reset_prepare(struct pci_dev *pdev)
{
struct nvme_dev *dev = pci_get_drvdata(pdev);
- nvme_dev_disable(dev, false);
+
+ /*
+ * We don't need to check the return value from waiting for the reset
+ * state as pci_dev device lock is held, making it impossible to race
+ * with ->remove().
+ */
+ nvme_disable_prepare_reset(dev, false);
+ nvme_sync_queues(&dev->ctrl);
}
static void nvme_reset_done(struct pci_dev *pdev)
{
struct nvme_dev *dev = pci_get_drvdata(pdev);
- nvme_reset_ctrl_sync(&dev->ctrl);
+
+ if (!nvme_try_sched_reset(&dev->ctrl))
+ flush_work(&dev->ctrl.reset_work);
}
static void nvme_shutdown(struct pci_dev *pdev)
{
struct nvme_dev *dev = pci_get_drvdata(pdev);
- nvme_dev_disable(dev, true);
+ nvme_disable_prepare_reset(dev, true);
}
/*
@@ -2901,7 +2921,7 @@ static int nvme_resume(struct device *dev)
if (ndev->last_ps == U32_MAX ||
nvme_set_power_state(ctrl, ndev->last_ps) != 0)
- nvme_reset_ctrl(ctrl);
+ return nvme_try_sched_reset(&ndev->ctrl);
return 0;
}
@@ -2929,17 +2949,14 @@ static int nvme_suspend(struct device *dev)
*/
if (pm_suspend_via_firmware() || !ctrl->npss ||
!pcie_aspm_enabled(pdev) ||
- (ndev->ctrl.quirks & NVME_QUIRK_SIMPLE_SUSPEND)) {
- nvme_dev_disable(ndev, true);
- return 0;
- }
+ (ndev->ctrl.quirks & NVME_QUIRK_SIMPLE_SUSPEND))
+ return nvme_disable_prepare_reset(ndev, true);
nvme_start_freeze(ctrl);
nvme_wait_freeze(ctrl);
nvme_sync_queues(ctrl);
- if (ctrl->state != NVME_CTRL_LIVE &&
- ctrl->state != NVME_CTRL_ADMIN_ONLY)
+ if (ctrl->state != NVME_CTRL_LIVE)
goto unfreeze;
ret = nvme_get_power_state(ctrl, &ndev->last_ps);
@@ -2963,11 +2980,10 @@ static int nvme_suspend(struct device *dev)
/*
* Clearing npss forces a controller reset on resume. The
- * correct value will be resdicovered then.
+ * correct value will be rediscovered then.
*/
- nvme_dev_disable(ndev, true);
+ ret = nvme_disable_prepare_reset(ndev, true);
ctrl->npss = 0;
- ret = 0;
}
unfreeze:
nvme_unfreeze(ctrl);
@@ -2977,9 +2993,7 @@ unfreeze:
static int nvme_simple_suspend(struct device *dev)
{
struct nvme_dev *ndev = pci_get_drvdata(to_pci_dev(dev));
-
- nvme_dev_disable(ndev, true);
- return 0;
+ return nvme_disable_prepare_reset(ndev, true);
}
static int nvme_simple_resume(struct device *dev)
@@ -2987,8 +3001,7 @@ static int nvme_simple_resume(struct device *dev)
struct pci_dev *pdev = to_pci_dev(dev);
struct nvme_dev *ndev = pci_get_drvdata(pdev);
- nvme_reset_ctrl(&ndev->ctrl);
- return 0;
+ return nvme_try_sched_reset(&ndev->ctrl);
}
static const struct dev_pm_ops nvme_dev_pm_ops = {
@@ -3067,7 +3080,8 @@ static const struct pci_device_id nvme_id_table[] = {
NVME_QUIRK_DEALLOCATE_ZEROES, },
{ PCI_VDEVICE(INTEL, 0xf1a5), /* Intel 600P/P3100 */
.driver_data = NVME_QUIRK_NO_DEEPEST_PS |
- NVME_QUIRK_MEDIUM_PRIO_SQ },
+ NVME_QUIRK_MEDIUM_PRIO_SQ |
+ NVME_QUIRK_NO_TEMP_THRESH_CHANGE },
{ PCI_VDEVICE(INTEL, 0xf1a6), /* Intel 760p/Pro 7600p */
.driver_data = NVME_QUIRK_IGNORE_DEV_SUBNQN, },
{ PCI_VDEVICE(INTEL, 0x5845), /* Qemu emulated controller */
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 4d280160dd3f..dce59459ed41 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1160,8 +1160,6 @@ static void nvme_rdma_unmap_data(struct nvme_rdma_queue *queue,
}
ib_dma_unmap_sg(ibdev, req->sg_table.sgl, req->nents, rq_dma_dir(rq));
-
- nvme_cleanup_cmd(rq);
sg_free_table_chained(&req->sg_table, SG_CHUNK_SIZE);
}
@@ -1501,8 +1499,8 @@ static void nvme_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc)
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
- if (unlikely(nvme_rdma_queue_idx(queue) == 0 &&
- cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH))
+ if (unlikely(nvme_is_aen_req(nvme_rdma_queue_idx(queue),
+ cqe->command_id)))
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
else
@@ -1701,6 +1699,14 @@ nvme_rdma_timeout(struct request *rq, bool reserved)
dev_warn(ctrl->ctrl.device, "I/O %d QID %d timeout\n",
rq->tag, nvme_rdma_queue_idx(queue));
+ /*
+ * Restart the timer if a controller reset is already scheduled. Any
+ * timed out commands would be handled before entering the connecting
+ * state.
+ */
+ if (ctrl->ctrl.state == NVME_CTRL_RESETTING)
+ return BLK_EH_RESET_TIMER;
+
if (ctrl->ctrl.state != NVME_CTRL_LIVE) {
/*
* Teardown immediately if controller times out while starting
@@ -1760,7 +1766,6 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
if (unlikely(err < 0)) {
dev_err(queue->ctrl->ctrl.device,
"Failed to map data (%d)\n", err);
- nvme_cleanup_cmd(rq);
goto err;
}
@@ -1771,18 +1776,19 @@ static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx,
err = nvme_rdma_post_send(queue, sqe, req->sge, req->num_sge,
req->mr ? &req->reg_wr.wr : NULL);
- if (unlikely(err)) {
- nvme_rdma_unmap_data(queue, rq);
- goto err;
- }
+ if (unlikely(err))
+ goto err_unmap;
return BLK_STS_OK;
+err_unmap:
+ nvme_rdma_unmap_data(queue, rq);
err:
if (err == -ENOMEM || err == -EAGAIN)
ret = BLK_STS_RESOURCE;
else
ret = BLK_STS_IOERR;
+ nvme_cleanup_cmd(rq);
unmap_qe:
ib_dma_unmap_single(dev, req->sqe.dma, sizeof(struct nvme_command),
DMA_TO_DEVICE);
@@ -2125,8 +2131,16 @@ err_unreg_client:
static void __exit nvme_rdma_cleanup_module(void)
{
+ struct nvme_rdma_ctrl *ctrl;
+
nvmf_unregister_transport(&nvme_rdma_transport);
ib_unregister_client(&nvme_rdma_ib_client);
+
+ mutex_lock(&nvme_rdma_ctrl_mutex);
+ list_for_each_entry(ctrl, &nvme_rdma_ctrl_list, list)
+ nvme_delete_ctrl(&ctrl->ctrl);
+ mutex_unlock(&nvme_rdma_ctrl_mutex);
+ flush_workqueue(nvme_delete_wq);
}
module_init(nvme_rdma_init_module);
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 385a5212c10f..6d43b23a0fc8 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -491,8 +491,8 @@ static int nvme_tcp_handle_comp(struct nvme_tcp_queue *queue,
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
- if (unlikely(nvme_tcp_queue_id(queue) == 0 &&
- cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH))
+ if (unlikely(nvme_is_aen_req(nvme_tcp_queue_id(queue),
+ cqe->command_id)))
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
else
@@ -1386,7 +1386,9 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl,
queue->sock->sk->sk_data_ready = nvme_tcp_data_ready;
queue->sock->sk->sk_state_change = nvme_tcp_state_change;
queue->sock->sk->sk_write_space = nvme_tcp_write_space;
+#ifdef CONFIG_NET_RX_BUSY_POLL
queue->sock->sk->sk_ll_usec = 1;
+#endif
write_unlock_bh(&queue->sock->sk->sk_callback_lock);
return 0;
@@ -2044,6 +2046,14 @@ nvme_tcp_timeout(struct request *rq, bool reserved)
struct nvme_tcp_ctrl *ctrl = req->queue->ctrl;
struct nvme_tcp_cmd_pdu *pdu = req->pdu;
+ /*
+ * Restart the timer if a controller reset is already scheduled. Any
+ * timed out commands would be handled before entering the connecting
+ * state.
+ */
+ if (ctrl->ctrl.state == NVME_CTRL_RESETTING)
+ return BLK_EH_RESET_TIMER;
+
dev_warn(ctrl->ctrl.device,
"queue %d: timeout request %#x type %d\n",
nvme_tcp_queue_id(req->queue), rq->tag, pdu->hdr.type);
@@ -2126,6 +2136,7 @@ static blk_status_t nvme_tcp_setup_cmd_pdu(struct nvme_ns *ns,
ret = nvme_tcp_map_data(queue, rq);
if (unlikely(ret)) {
+ nvme_cleanup_cmd(rq);
dev_err(queue->ctrl->ctrl.device,
"Failed to map data (%d)\n", ret);
return ret;
@@ -2208,7 +2219,7 @@ static int nvme_tcp_poll(struct blk_mq_hw_ctx *hctx)
struct nvme_tcp_queue *queue = hctx->driver_data;
struct sock *sk = queue->sock->sk;
- if (sk_can_busy_loop(sk) && skb_queue_empty(&sk->sk_receive_queue))
+ if (sk_can_busy_loop(sk) && skb_queue_empty_lockless(&sk->sk_receive_queue))
sk_busy_loop(sk, true);
nvme_tcp_try_recv(queue);
return queue->nr_cqe;
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 831a062d27cb..56c21b501185 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -31,7 +31,7 @@ u64 nvmet_get_log_page_offset(struct nvme_command *cmd)
static void nvmet_execute_get_log_page_noop(struct nvmet_req *req)
{
- nvmet_req_complete(req, nvmet_zero_sgl(req, 0, req->data_len));
+ nvmet_req_complete(req, nvmet_zero_sgl(req, 0, req->transfer_len));
}
static void nvmet_execute_get_log_page_error(struct nvmet_req *req)
@@ -134,7 +134,7 @@ static void nvmet_execute_get_log_page_smart(struct nvmet_req *req)
u16 status = NVME_SC_INTERNAL;
unsigned long flags;
- if (req->data_len != sizeof(*log))
+ if (req->transfer_len != sizeof(*log))
goto out;
log = kzalloc(sizeof(*log), GFP_KERNEL);
@@ -196,7 +196,7 @@ static void nvmet_execute_get_log_changed_ns(struct nvmet_req *req)
u16 status = NVME_SC_INTERNAL;
size_t len;
- if (req->data_len != NVME_MAX_CHANGED_NAMESPACES * sizeof(__le32))
+ if (req->transfer_len != NVME_MAX_CHANGED_NAMESPACES * sizeof(__le32))
goto out;
mutex_lock(&ctrl->lock);
@@ -206,7 +206,7 @@ static void nvmet_execute_get_log_changed_ns(struct nvmet_req *req)
len = ctrl->nr_changed_ns * sizeof(__le32);
status = nvmet_copy_to_sgl(req, 0, ctrl->changed_ns_list, len);
if (!status)
- status = nvmet_zero_sgl(req, len, req->data_len - len);
+ status = nvmet_zero_sgl(req, len, req->transfer_len - len);
ctrl->nr_changed_ns = 0;
nvmet_clear_aen_bit(req, NVME_AEN_BIT_NS_ATTR);
mutex_unlock(&ctrl->lock);
@@ -282,6 +282,36 @@ out:
nvmet_req_complete(req, status);
}
+static void nvmet_execute_get_log_page(struct nvmet_req *req)
+{
+ if (!nvmet_check_data_len(req, nvmet_get_log_page_len(req->cmd)))
+ return;
+
+ switch (req->cmd->get_log_page.lid) {
+ case NVME_LOG_ERROR:
+ return nvmet_execute_get_log_page_error(req);
+ case NVME_LOG_SMART:
+ return nvmet_execute_get_log_page_smart(req);
+ case NVME_LOG_FW_SLOT:
+ /*
+ * We only support a single firmware slot which always is
+ * active, so we can zero out the whole firmware slot log and
+ * still claim to fully implement this mandatory log page.
+ */
+ return nvmet_execute_get_log_page_noop(req);
+ case NVME_LOG_CHANGED_NS:
+ return nvmet_execute_get_log_changed_ns(req);
+ case NVME_LOG_CMD_EFFECTS:
+ return nvmet_execute_get_log_cmd_effects_ns(req);
+ case NVME_LOG_ANA:
+ return nvmet_execute_get_log_page_ana(req);
+ }
+ pr_err("unhandled lid %d on qid %d\n",
+ req->cmd->get_log_page.lid, req->sq->qid);
+ req->error_loc = offsetof(struct nvme_get_log_page_command, lid);
+ nvmet_req_complete(req, NVME_SC_INVALID_FIELD | NVME_SC_DNR);
+}
+
static void nvmet_execute_identify_ctrl(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
@@ -565,6 +595,28 @@ out:
nvmet_req_complete(req, status);
}
+static void nvmet_execute_identify(struct nvmet_req *req)
+{
+ if (!nvmet_check_data_len(req, NVME_IDENTIFY_DATA_SIZE))
+ return;
+
+ switch (req->cmd->identify.cns) {
+ case NVME_ID_CNS_NS:
+ return nvmet_execute_identify_ns(req);
+ case NVME_ID_CNS_CTRL:
+ return nvmet_execute_identify_ctrl(req);
+ case NVME_ID_CNS_NS_ACTIVE_LIST:
+ return nvmet_execute_identify_nslist(req);
+ case NVME_ID_CNS_NS_DESC_LIST:
+ return nvmet_execute_identify_desclist(req);
+ }
+
+ pr_err("unhandled identify cns %d on qid %d\n",
+ req->cmd->identify.cns, req->sq->qid);
+ req->error_loc = offsetof(struct nvme_identify, cns);
+ nvmet_req_complete(req, NVME_SC_INVALID_FIELD | NVME_SC_DNR);
+}
+
/*
* A "minimum viable" abort implementation: the command is mandatory in the
* spec, but we are not required to do any useful work. We couldn't really
@@ -574,6 +626,8 @@ out:
*/
static void nvmet_execute_abort(struct nvmet_req *req)
{
+ if (!nvmet_check_data_len(req, 0))
+ return;
nvmet_set_result(req, 1);
nvmet_req_complete(req, 0);
}
@@ -658,6 +712,9 @@ static void nvmet_execute_set_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 status = 0;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
switch (cdw10 & 0xff) {
case NVME_FEAT_NUM_QUEUES:
nvmet_set_result(req,
@@ -721,6 +778,9 @@ static void nvmet_execute_get_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 status = 0;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
switch (cdw10 & 0xff) {
/*
* These features are mandatory in the spec, but we don't
@@ -785,6 +845,9 @@ void nvmet_execute_async_event(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
mutex_lock(&ctrl->lock);
if (ctrl->nr_async_event_cmds >= NVMET_ASYNC_EVENTS) {
mutex_unlock(&ctrl->lock);
@@ -801,6 +864,9 @@ void nvmet_execute_keep_alive(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
pr_debug("ctrl %d update keep-alive timer for %d secs\n",
ctrl->cntlid, ctrl->kato);
@@ -813,77 +879,36 @@ u16 nvmet_parse_admin_cmd(struct nvmet_req *req)
struct nvme_command *cmd = req->cmd;
u16 ret;
+ if (nvme_is_fabrics(cmd))
+ return nvmet_parse_fabrics_cmd(req);
+ if (req->sq->ctrl->subsys->type == NVME_NQN_DISC)
+ return nvmet_parse_discovery_cmd(req);
+
ret = nvmet_check_ctrl_status(req, cmd);
if (unlikely(ret))
return ret;
switch (cmd->common.opcode) {
case nvme_admin_get_log_page:
- req->data_len = nvmet_get_log_page_len(cmd);
-
- switch (cmd->get_log_page.lid) {
- case NVME_LOG_ERROR:
- req->execute = nvmet_execute_get_log_page_error;
- return 0;
- case NVME_LOG_SMART:
- req->execute = nvmet_execute_get_log_page_smart;
- return 0;
- case NVME_LOG_FW_SLOT:
- /*
- * We only support a single firmware slot which always
- * is active, so we can zero out the whole firmware slot
- * log and still claim to fully implement this mandatory
- * log page.
- */
- req->execute = nvmet_execute_get_log_page_noop;
- return 0;
- case NVME_LOG_CHANGED_NS:
- req->execute = nvmet_execute_get_log_changed_ns;
- return 0;
- case NVME_LOG_CMD_EFFECTS:
- req->execute = nvmet_execute_get_log_cmd_effects_ns;
- return 0;
- case NVME_LOG_ANA:
- req->execute = nvmet_execute_get_log_page_ana;
- return 0;
- }
- break;
+ req->execute = nvmet_execute_get_log_page;
+ return 0;
case nvme_admin_identify:
- req->data_len = NVME_IDENTIFY_DATA_SIZE;
- switch (cmd->identify.cns) {
- case NVME_ID_CNS_NS:
- req->execute = nvmet_execute_identify_ns;
- return 0;
- case NVME_ID_CNS_CTRL:
- req->execute = nvmet_execute_identify_ctrl;
- return 0;
- case NVME_ID_CNS_NS_ACTIVE_LIST:
- req->execute = nvmet_execute_identify_nslist;
- return 0;
- case NVME_ID_CNS_NS_DESC_LIST:
- req->execute = nvmet_execute_identify_desclist;
- return 0;
- }
- break;
+ req->execute = nvmet_execute_identify;
+ return 0;
case nvme_admin_abort_cmd:
req->execute = nvmet_execute_abort;
- req->data_len = 0;
return 0;
case nvme_admin_set_features:
req->execute = nvmet_execute_set_features;
- req->data_len = 0;
return 0;
case nvme_admin_get_features:
req->execute = nvmet_execute_get_features;
- req->data_len = 0;
return 0;
case nvme_admin_async_event:
req->execute = nvmet_execute_async_event;
- req->data_len = 0;
return 0;
case nvme_admin_keep_alive:
req->execute = nvmet_execute_keep_alive;
- req->data_len = 0;
return 0;
}
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 3a67e244e568..28438b833c1b 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -892,14 +892,10 @@ bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
}
if (unlikely(!req->sq->ctrl))
- /* will return an error for any Non-connect command: */
+ /* will return an error for any non-connect command: */
status = nvmet_parse_connect_cmd(req);
else if (likely(req->sq->qid != 0))
status = nvmet_parse_io_cmd(req);
- else if (nvme_is_fabrics(req->cmd))
- status = nvmet_parse_fabrics_cmd(req);
- else if (req->sq->ctrl->subsys->type == NVME_NQN_DISC)
- status = nvmet_parse_discovery_cmd(req);
else
status = nvmet_parse_admin_cmd(req);
@@ -930,15 +926,17 @@ void nvmet_req_uninit(struct nvmet_req *req)
}
EXPORT_SYMBOL_GPL(nvmet_req_uninit);
-void nvmet_req_execute(struct nvmet_req *req)
+bool nvmet_check_data_len(struct nvmet_req *req, size_t data_len)
{
- if (unlikely(req->data_len != req->transfer_len)) {
+ if (unlikely(data_len != req->transfer_len)) {
req->error_loc = offsetof(struct nvme_common_command, dptr);
nvmet_req_complete(req, NVME_SC_SGL_INVALID_DATA | NVME_SC_DNR);
- } else
- req->execute(req);
+ return false;
+ }
+
+ return true;
}
-EXPORT_SYMBOL_GPL(nvmet_req_execute);
+EXPORT_SYMBOL_GPL(nvmet_check_data_len);
int nvmet_req_alloc_sgl(struct nvmet_req *req)
{
@@ -966,7 +964,7 @@ int nvmet_req_alloc_sgl(struct nvmet_req *req)
}
req->sg = sgl_alloc(req->transfer_len, GFP_KERNEL, &req->sg_cnt);
- if (!req->sg)
+ if (unlikely(!req->sg))
return -ENOMEM;
return 0;
diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c
index 3764a8900850..0c2274b21e15 100644
--- a/drivers/nvme/target/discovery.c
+++ b/drivers/nvme/target/discovery.c
@@ -157,7 +157,7 @@ static size_t discovery_log_entries(struct nvmet_req *req)
return entries;
}
-static void nvmet_execute_get_disc_log_page(struct nvmet_req *req)
+static void nvmet_execute_disc_get_log_page(struct nvmet_req *req)
{
const int entry_size = sizeof(struct nvmf_disc_rsp_page_entry);
struct nvmet_ctrl *ctrl = req->sq->ctrl;
@@ -171,6 +171,16 @@ static void nvmet_execute_get_disc_log_page(struct nvmet_req *req)
u16 status = 0;
void *buffer;
+ if (!nvmet_check_data_len(req, data_len))
+ return;
+
+ if (req->cmd->get_log_page.lid != NVME_LOG_DISC) {
+ req->error_loc =
+ offsetof(struct nvme_get_log_page_command, lid);
+ status = NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
+ goto out;
+ }
+
/* Spec requires dword aligned offsets */
if (offset & 0x3) {
status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
@@ -227,20 +237,35 @@ out:
nvmet_req_complete(req, status);
}
-static void nvmet_execute_identify_disc_ctrl(struct nvmet_req *req)
+static void nvmet_execute_disc_identify(struct nvmet_req *req)
{
struct nvmet_ctrl *ctrl = req->sq->ctrl;
struct nvme_id_ctrl *id;
+ const char model[] = "Linux";
u16 status = 0;
+ if (!nvmet_check_data_len(req, NVME_IDENTIFY_DATA_SIZE))
+ return;
+
+ if (req->cmd->identify.cns != NVME_ID_CNS_CTRL) {
+ req->error_loc = offsetof(struct nvme_identify, cns);
+ status = NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
+ goto out;
+ }
+
id = kzalloc(sizeof(*id), GFP_KERNEL);
if (!id) {
status = NVME_SC_INTERNAL;
goto out;
}
+ memset(id->sn, ' ', sizeof(id->sn));
+ bin2hex(id->sn, &ctrl->subsys->serial,
+ min(sizeof(ctrl->subsys->serial), sizeof(id->sn) / 2));
memset(id->fr, ' ', sizeof(id->fr));
- strncpy((char *)id->fr, UTS_RELEASE, sizeof(id->fr));
+ memcpy_and_pad(id->mn, sizeof(id->mn), model, sizeof(model) - 1, ' ');
+ memcpy_and_pad(id->fr, sizeof(id->fr),
+ UTS_RELEASE, strlen(UTS_RELEASE), ' ');
/* no limit on data transfer sizes for now */
id->mdts = 0;
@@ -273,6 +298,9 @@ static void nvmet_execute_disc_set_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 stat;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
switch (cdw10 & 0xff) {
case NVME_FEAT_KATO:
stat = nvmet_set_feat_kato(req);
@@ -296,6 +324,9 @@ static void nvmet_execute_disc_get_features(struct nvmet_req *req)
u32 cdw10 = le32_to_cpu(req->cmd->common.cdw10);
u16 stat = 0;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
switch (cdw10 & 0xff) {
case NVME_FEAT_KATO:
nvmet_get_feat_kato(req);
@@ -328,47 +359,22 @@ u16 nvmet_parse_discovery_cmd(struct nvmet_req *req)
switch (cmd->common.opcode) {
case nvme_admin_set_features:
req->execute = nvmet_execute_disc_set_features;
- req->data_len = 0;
return 0;
case nvme_admin_get_features:
req->execute = nvmet_execute_disc_get_features;
- req->data_len = 0;
return 0;
case nvme_admin_async_event:
req->execute = nvmet_execute_async_event;
- req->data_len = 0;
return 0;
case nvme_admin_keep_alive:
req->execute = nvmet_execute_keep_alive;
- req->data_len = 0;
return 0;
case nvme_admin_get_log_page:
- req->data_len = nvmet_get_log_page_len(cmd);
-
- switch (cmd->get_log_page.lid) {
- case NVME_LOG_DISC:
- req->execute = nvmet_execute_get_disc_log_page;
- return 0;
- default:
- pr_err("unsupported get_log_page lid %d\n",
- cmd->get_log_page.lid);
- req->error_loc =
- offsetof(struct nvme_get_log_page_command, lid);
- return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
- }
+ req->execute = nvmet_execute_disc_get_log_page;
+ return 0;
case nvme_admin_identify:
- req->data_len = NVME_IDENTIFY_DATA_SIZE;
- switch (cmd->identify.cns) {
- case NVME_ID_CNS_CTRL:
- req->execute =
- nvmet_execute_identify_disc_ctrl;
- return 0;
- default:
- pr_err("unsupported identify cns %d\n",
- cmd->identify.cns);
- req->error_loc = offsetof(struct nvme_identify, cns);
- return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
- }
+ req->execute = nvmet_execute_disc_identify;
+ return 0;
default:
pr_err("unhandled cmd %d\n", cmd->common.opcode);
req->error_loc = offsetof(struct nvme_common_command, opcode);
diff --git a/drivers/nvme/target/fabrics-cmd.c b/drivers/nvme/target/fabrics-cmd.c
index d16b55ffe79f..f7297473d9eb 100644
--- a/drivers/nvme/target/fabrics-cmd.c
+++ b/drivers/nvme/target/fabrics-cmd.c
@@ -12,6 +12,9 @@ static void nvmet_execute_prop_set(struct nvmet_req *req)
u64 val = le64_to_cpu(req->cmd->prop_set.value);
u16 status = 0;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
if (req->cmd->prop_set.attrib & 1) {
req->error_loc =
offsetof(struct nvmf_property_set_command, attrib);
@@ -38,6 +41,9 @@ static void nvmet_execute_prop_get(struct nvmet_req *req)
u16 status = 0;
u64 val = 0;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
if (req->cmd->prop_get.attrib & 1) {
switch (le32_to_cpu(req->cmd->prop_get.offset)) {
case NVME_REG_CAP:
@@ -82,11 +88,9 @@ u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req)
switch (cmd->fabrics.fctype) {
case nvme_fabrics_type_property_set:
- req->data_len = 0;
req->execute = nvmet_execute_prop_set;
break;
case nvme_fabrics_type_property_get:
- req->data_len = 0;
req->execute = nvmet_execute_prop_get;
break;
default:
@@ -147,6 +151,9 @@ static void nvmet_execute_admin_connect(struct nvmet_req *req)
struct nvmet_ctrl *ctrl = NULL;
u16 status = 0;
+ if (!nvmet_check_data_len(req, sizeof(struct nvmf_connect_data)))
+ return;
+
d = kmalloc(sizeof(*d), GFP_KERNEL);
if (!d) {
status = NVME_SC_INTERNAL;
@@ -211,6 +218,9 @@ static void nvmet_execute_io_connect(struct nvmet_req *req)
u16 qid = le16_to_cpu(c->qid);
u16 status = 0;
+ if (!nvmet_check_data_len(req, sizeof(struct nvmf_connect_data)))
+ return;
+
d = kmalloc(sizeof(*d), GFP_KERNEL);
if (!d) {
status = NVME_SC_INTERNAL;
@@ -281,7 +291,6 @@ u16 nvmet_parse_connect_cmd(struct nvmet_req *req)
return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
}
- req->data_len = sizeof(struct nvmf_connect_data);
if (cmd->connect.qid == 0)
req->execute = nvmet_execute_admin_connect;
else
diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index ce8d819f86cc..a0db6371b43e 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -1495,20 +1495,20 @@ static void
nvmet_fc_ls_disconnect(struct nvmet_fc_tgtport *tgtport,
struct nvmet_fc_ls_iod *iod)
{
- struct fcnvme_ls_disconnect_rqst *rqst =
- (struct fcnvme_ls_disconnect_rqst *)iod->rqstbuf;
- struct fcnvme_ls_disconnect_acc *acc =
- (struct fcnvme_ls_disconnect_acc *)iod->rspbuf;
+ struct fcnvme_ls_disconnect_assoc_rqst *rqst =
+ (struct fcnvme_ls_disconnect_assoc_rqst *)iod->rqstbuf;
+ struct fcnvme_ls_disconnect_assoc_acc *acc =
+ (struct fcnvme_ls_disconnect_assoc_acc *)iod->rspbuf;
struct nvmet_fc_tgt_assoc *assoc;
int ret = 0;
memset(acc, 0, sizeof(*acc));
- if (iod->rqstdatalen < sizeof(struct fcnvme_ls_disconnect_rqst))
+ if (iod->rqstdatalen < sizeof(struct fcnvme_ls_disconnect_assoc_rqst))
ret = VERR_DISCONN_LEN;
else if (rqst->desc_list_len !=
fcnvme_lsdesc_len(
- sizeof(struct fcnvme_ls_disconnect_rqst)))
+ sizeof(struct fcnvme_ls_disconnect_assoc_rqst)))
ret = VERR_DISCONN_RQST_LEN;
else if (rqst->associd.desc_tag != cpu_to_be32(FCNVME_LSDESC_ASSOC_ID))
ret = VERR_ASSOC_ID;
@@ -1523,8 +1523,11 @@ nvmet_fc_ls_disconnect(struct nvmet_fc_tgtport *tgtport,
fcnvme_lsdesc_len(
sizeof(struct fcnvme_lsdesc_disconn_cmd)))
ret = VERR_DISCONN_CMD_LEN;
- else if ((rqst->discon_cmd.scope != FCNVME_DISCONN_ASSOCIATION) &&
- (rqst->discon_cmd.scope != FCNVME_DISCONN_CONNECTION))
+ /*
+ * As the standard changed on the LS, check if old format and scope
+ * something other than Association (e.g. 0).
+ */
+ else if (rqst->discon_cmd.rsvd8[0])
ret = VERR_DISCONN_SCOPE;
else {
/* match an active association */
@@ -1556,8 +1559,8 @@ nvmet_fc_ls_disconnect(struct nvmet_fc_tgtport *tgtport,
nvmet_fc_format_rsp_hdr(acc, FCNVME_LS_ACC,
fcnvme_lsdesc_len(
- sizeof(struct fcnvme_ls_disconnect_acc)),
- FCNVME_LS_DISCONNECT);
+ sizeof(struct fcnvme_ls_disconnect_assoc_acc)),
+ FCNVME_LS_DISCONNECT_ASSOC);
/* release get taken in nvmet_fc_find_target_assoc */
nvmet_fc_tgt_a_put(iod->assoc);
@@ -1632,7 +1635,7 @@ nvmet_fc_handle_ls_rqst(struct nvmet_fc_tgtport *tgtport,
/* Creates an IO Queue/Connection */
nvmet_fc_ls_create_connection(tgtport, iod);
break;
- case FCNVME_LS_DISCONNECT:
+ case FCNVME_LS_DISCONNECT_ASSOC:
/* Terminate a Queue/Connection or the Association */
nvmet_fc_ls_disconnect(tgtport, iod);
break;
@@ -2015,7 +2018,7 @@ nvmet_fc_fod_op_done(struct nvmet_fc_fcp_iod *fod)
}
/* data transfer complete, resume with nvmet layer */
- nvmet_req_execute(&fod->req);
+ fod->req.execute(&fod->req);
break;
case NVMET_FCOP_READDATA:
@@ -2231,7 +2234,7 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
* can invoke the nvmet_layer now. If read data, cmd completion will
* push the data
*/
- nvmet_req_execute(&fod->req);
+ fod->req.execute(&fod->req);
return;
transport_error:
@@ -2299,7 +2302,7 @@ nvmet_fc_rcv_fcp_req(struct nvmet_fc_target_port *target_port,
/* validate iu, so the connection id can be used to find the queue */
if ((cmdiubuf_len != sizeof(*cmdiu)) ||
- (cmdiu->scsi_id != NVME_CMD_SCSI_ID) ||
+ (cmdiu->format_id != NVME_CMD_FORMAT_ID) ||
(cmdiu->fc_id != NVME_CMD_FC_ID) ||
(be16_to_cpu(cmdiu->iu_len) != (sizeof(*cmdiu)/4)))
return -EIO;
diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index 32008d85172b..b6fca0e421ef 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -147,8 +147,12 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
int sg_cnt = req->sg_cnt;
struct bio *bio;
struct scatterlist *sg;
+ struct blk_plug plug;
sector_t sector;
- int op, op_flags = 0, i;
+ int op, i;
+
+ if (!nvmet_check_data_len(req, nvmet_rw_len(req)))
+ return;
if (!req->sg_cnt) {
nvmet_req_complete(req, 0);
@@ -156,21 +160,20 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
}
if (req->cmd->rw.opcode == nvme_cmd_write) {
- op = REQ_OP_WRITE;
- op_flags = REQ_SYNC | REQ_IDLE;
+ op = REQ_OP_WRITE | REQ_SYNC | REQ_IDLE;
if (req->cmd->rw.control & cpu_to_le16(NVME_RW_FUA))
- op_flags |= REQ_FUA;
+ op |= REQ_FUA;
} else {
op = REQ_OP_READ;
}
if (is_pci_p2pdma_page(sg_page(req->sg)))
- op_flags |= REQ_NOMERGE;
+ op |= REQ_NOMERGE;
sector = le64_to_cpu(req->cmd->rw.slba);
sector <<= (req->ns->blksize_shift - 9);
- if (req->data_len <= NVMET_MAX_INLINE_DATA_LEN) {
+ if (req->transfer_len <= NVMET_MAX_INLINE_DATA_LEN) {
bio = &req->b.inline_bio;
bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
} else {
@@ -180,8 +183,9 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
bio->bi_iter.bi_sector = sector;
bio->bi_private = req;
bio->bi_end_io = nvmet_bio_done;
- bio_set_op_attrs(bio, op, op_flags);
+ bio->bi_opf = op;
+ blk_start_plug(&plug);
for_each_sg(req->sg, sg, req->sg_cnt, i) {
while (bio_add_page(bio, sg_page(sg), sg->length, sg->offset)
!= sg->length) {
@@ -190,7 +194,7 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
bio = bio_alloc(GFP_KERNEL, min(sg_cnt, BIO_MAX_PAGES));
bio_set_dev(bio, req->ns->bdev);
bio->bi_iter.bi_sector = sector;
- bio_set_op_attrs(bio, op, op_flags);
+ bio->bi_opf = op;
bio_chain(bio, prev);
submit_bio(prev);
@@ -201,12 +205,16 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
}
submit_bio(bio);
+ blk_finish_plug(&plug);
}
static void nvmet_bdev_execute_flush(struct nvmet_req *req)
{
struct bio *bio = &req->b.inline_bio;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
bio_set_dev(bio, req->ns->bdev);
bio->bi_private = req;
@@ -261,12 +269,10 @@ static void nvmet_bdev_execute_discard(struct nvmet_req *req)
if (bio) {
bio->bi_private = req;
bio->bi_end_io = nvmet_bio_done;
- if (status) {
- bio->bi_status = BLK_STS_IOERR;
- bio_endio(bio);
- } else {
+ if (status)
+ bio_io_error(bio);
+ else
submit_bio(bio);
- }
} else {
nvmet_req_complete(req, status);
}
@@ -274,6 +280,9 @@ static void nvmet_bdev_execute_discard(struct nvmet_req *req)
static void nvmet_bdev_execute_dsm(struct nvmet_req *req)
{
+ if (!nvmet_check_data_len(req, nvmet_dsm_len(req)))
+ return;
+
switch (le32_to_cpu(req->cmd->dsm.attributes)) {
case NVME_DSMGMT_AD:
nvmet_bdev_execute_discard(req);
@@ -295,6 +304,9 @@ static void nvmet_bdev_execute_write_zeroes(struct nvmet_req *req)
sector_t nr_sector;
int ret;
+ if (!nvmet_check_data_len(req, 0))
+ return;
+
sector = le64_to_cpu(write_zeroes->slba) <<
(req->ns->blksize_shift - 9);
nr_sector = (((sector_t)le16_to_cpu(write_zeroes->length) + 1) <<
@@ -319,20 +331,15 @@ u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req)
case nvme_cmd_read:
case nvme_cmd_write:
req->execute = nvmet_bdev_execute_rw;
- req->data_len = nvmet_rw_len(req);
return 0;
case nvme_cmd_flush:
req->execute = nvmet_bdev_execute_flush;
- req->data_len = 0;
return 0;
case nvme_cmd_dsm:
req->execute = nvmet_bdev_execute_dsm;
- req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) *
- sizeof(struct nvme_dsm_range);
return 0;
case nvme_cmd_write_zeroes:
req->execute = nvmet_bdev_execute_write_zeroes;
- req->data_len = 0;
return 0;
default:
pr_err("unhandled cmd %d on qid %d\n", cmd->common.opcode,
diff --git a/drivers/nvme/target/io-cmd-file.c b/drivers/nvme/target/io-cmd-file.c
index 05453f5d1448..caebfce06605 100644
--- a/drivers/nvme/target/io-cmd-file.c
+++ b/drivers/nvme/target/io-cmd-file.c
@@ -126,7 +126,7 @@ static void nvmet_file_io_done(struct kiocb *iocb, long ret, long ret2)
mempool_free(req->f.bvec, req->ns->bvec_pool);
}
- if (unlikely(ret != req->data_len))
+ if (unlikely(ret != req->transfer_len))
status = errno_to_nvme_status(req, ret);
nvmet_req_complete(req, status);
}
@@ -146,7 +146,7 @@ static bool nvmet_file_execute_io(struct nvmet_req *req, int ki_flags)
is_sync = true;
pos = le64_to_cpu(req->cmd->rw.slba) << req->ns->blksize_shift;
- if (unlikely(pos + req->data_len > req->ns->size)) {
+ if (unlikely(pos + req->transfer_len > req->ns->size)) {
nvmet_req_complete(req, errno_to_nvme_status(req, -ENOSPC));
return true;
}
@@ -173,7 +173,7 @@ static bool nvmet_file_execute_io(struct nvmet_req *req, int ki_flags)
nr_bvec--;
}
- if (WARN_ON_ONCE(total_len != req->data_len)) {
+ if (WARN_ON_ONCE(total_len != req->transfer_len)) {
ret = -EIO;
goto complete;
}
@@ -232,6 +232,9 @@ static void nvmet_file_execute_rw(struct nvmet_req *req)
{
ssize_t nr_bvec = req->sg_cnt;
+ if (!nvmet_check_data_len(req, nvmet_rw_len(req)))
+ return;
+
if (!req->sg_cnt || !nr_bvec) {
nvmet_req_complete(req, 0);
return;
@@ -273,6 +276,8 @@ static void nvmet_file_flush_work(struct work_struct *w)
static void nvmet_file_execute_flush(struct nvmet_req *req)
{
+ if (!nvmet_check_data_len(req, 0))
+ return;
INIT_WORK(&req->f.work, nvmet_file_flush_work);
schedule_work(&req->f.work);
}
@@ -331,6 +336,8 @@ static void nvmet_file_dsm_work(struct work_struct *w)
static void nvmet_file_execute_dsm(struct nvmet_req *req)
{
+ if (!nvmet_check_data_len(req, nvmet_dsm_len(req)))
+ return;
INIT_WORK(&req->f.work, nvmet_file_dsm_work);
schedule_work(&req->f.work);
}
@@ -359,6 +366,8 @@ static void nvmet_file_write_zeroes_work(struct work_struct *w)
static void nvmet_file_execute_write_zeroes(struct nvmet_req *req)
{
+ if (!nvmet_check_data_len(req, 0))
+ return;
INIT_WORK(&req->f.work, nvmet_file_write_zeroes_work);
schedule_work(&req->f.work);
}
@@ -371,20 +380,15 @@ u16 nvmet_file_parse_io_cmd(struct nvmet_req *req)
case nvme_cmd_read:
case nvme_cmd_write:
req->execute = nvmet_file_execute_rw;
- req->data_len = nvmet_rw_len(req);
return 0;
case nvme_cmd_flush:
req->execute = nvmet_file_execute_flush;
- req->data_len = 0;
return 0;
case nvme_cmd_dsm:
req->execute = nvmet_file_execute_dsm;
- req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) *
- sizeof(struct nvme_dsm_range);
return 0;
case nvme_cmd_write_zeroes:
req->execute = nvmet_file_execute_write_zeroes;
- req->data_len = 0;
return 0;
default:
pr_err("unhandled cmd for file ns %d on qid %d\n",
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 748a39fca771..a758bb3d5dd4 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -76,7 +76,6 @@ static void nvme_loop_complete_rq(struct request *req)
{
struct nvme_loop_iod *iod = blk_mq_rq_to_pdu(req);
- nvme_cleanup_cmd(req);
sg_free_table_chained(&iod->sg_table, SG_CHUNK_SIZE);
nvme_complete_rq(req);
}
@@ -102,8 +101,8 @@ static void nvme_loop_queue_response(struct nvmet_req *req)
* aborts. We don't even bother to allocate a struct request
* for them but rather special case them here.
*/
- if (unlikely(nvme_loop_queue_idx(queue) == 0 &&
- cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
+ if (unlikely(nvme_is_aen_req(nvme_loop_queue_idx(queue),
+ cqe->command_id))) {
nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
&cqe->result);
} else {
@@ -126,7 +125,7 @@ static void nvme_loop_execute_work(struct work_struct *work)
struct nvme_loop_iod *iod =
container_of(work, struct nvme_loop_iod, work);
- nvmet_req_execute(&iod->req);
+ iod->req.execute(&iod->req);
}
static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
@@ -157,8 +156,10 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
iod->sg_table.sgl = iod->first_sgl;
if (sg_alloc_table_chained(&iod->sg_table,
blk_rq_nr_phys_segments(req),
- iod->sg_table.sgl, SG_CHUNK_SIZE))
+ iod->sg_table.sgl, SG_CHUNK_SIZE)) {
+ nvme_cleanup_cmd(req);
return BLK_STS_RESOURCE;
+ }
iod->req.sg = iod->sg_table.sgl;
iod->req.sg_cnt = blk_rq_map_sg(req->q, req, iod->sg_table.sgl);
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index c51f8dd01dc4..46df45e837c9 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -304,8 +304,6 @@ struct nvmet_req {
} f;
};
int sg_cnt;
- /* data length as parsed from the command: */
- size_t data_len;
/* data length as parsed from the SGL descriptor: */
size_t transfer_len;
@@ -375,7 +373,7 @@ u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req);
bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
struct nvmet_sq *sq, const struct nvmet_fabrics_ops *ops);
void nvmet_req_uninit(struct nvmet_req *req);
-void nvmet_req_execute(struct nvmet_req *req);
+bool nvmet_check_data_len(struct nvmet_req *req, size_t data_len);
void nvmet_req_complete(struct nvmet_req *req, u16 status);
int nvmet_req_alloc_sgl(struct nvmet_req *req);
void nvmet_req_free_sgl(struct nvmet_req *req);
@@ -495,6 +493,12 @@ static inline u32 nvmet_rw_len(struct nvmet_req *req)
req->ns->blksize_shift;
}
+static inline u32 nvmet_dsm_len(struct nvmet_req *req)
+{
+ return (le32_to_cpu(req->cmd->dsm.nr) + 1) *
+ sizeof(struct nvme_dsm_range);
+}
+
u16 errno_to_nvme_status(struct nvmet_req *req, int errno);
/* Convert a 32-bit number to a 16-bit 0's based number */
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 36d906a7f70d..37d262a65877 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -603,7 +603,7 @@ static void nvmet_rdma_read_data_done(struct ib_cq *cq, struct ib_wc *wc)
return;
}
- nvmet_req_execute(&rsp->req);
+ rsp->req.execute(&rsp->req);
}
static void nvmet_rdma_use_inline_sg(struct nvmet_rdma_rsp *rsp, u32 len,
@@ -672,13 +672,13 @@ static u16 nvmet_rdma_map_sgl_keyed(struct nvmet_rdma_rsp *rsp,
return 0;
ret = nvmet_req_alloc_sgl(&rsp->req);
- if (ret < 0)
+ if (unlikely(ret < 0))
goto error_out;
ret = rdma_rw_ctx_init(&rsp->rw, cm_id->qp, cm_id->port_num,
rsp->req.sg, rsp->req.sg_cnt, 0, addr, key,
nvmet_data_dir(&rsp->req));
- if (ret < 0)
+ if (unlikely(ret < 0))
goto error_out;
rsp->n_rdma += ret;
@@ -746,7 +746,7 @@ static bool nvmet_rdma_execute_command(struct nvmet_rdma_rsp *rsp)
queue->cm_id->port_num, &rsp->read_cqe, NULL))
nvmet_req_complete(&rsp->req, NVME_SC_DATA_XFER_ERROR);
} else {
- nvmet_req_execute(&rsp->req);
+ rsp->req.execute(&rsp->req);
}
return true;
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index d535080b781f..af674fc0bb1e 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -320,7 +320,7 @@ static int nvmet_tcp_map_data(struct nvmet_tcp_cmd *cmd)
struct nvme_sgl_desc *sgl = &cmd->req.cmd->common.dptr.sgl;
u32 len = le32_to_cpu(sgl->length);
- if (!cmd->req.data_len)
+ if (!len)
return 0;
if (sgl->type == ((NVME_SGL_FMT_DATA_DESC << 4) |
@@ -813,13 +813,11 @@ free_crypto:
static void nvmet_tcp_handle_req_failure(struct nvmet_tcp_queue *queue,
struct nvmet_tcp_cmd *cmd, struct nvmet_req *req)
{
+ size_t data_len = le32_to_cpu(req->cmd->common.dptr.sgl.length);
int ret;
- /* recover the expected data transfer length */
- req->data_len = le32_to_cpu(req->cmd->common.dptr.sgl.length);
-
if (!nvme_is_write(cmd->req.cmd) ||
- req->data_len > cmd->req.port->inline_data_size) {
+ data_len > cmd->req.port->inline_data_size) {
nvmet_prepare_receive_pdu(queue);
return;
}
@@ -932,7 +930,7 @@ static int nvmet_tcp_done_recv_pdu(struct nvmet_tcp_queue *queue)
goto out;
}
- nvmet_req_execute(&queue->cmd->req);
+ queue->cmd->req.execute(&queue->cmd->req);
out:
nvmet_prepare_receive_pdu(queue);
return ret;
@@ -1052,7 +1050,7 @@ static int nvmet_tcp_try_recv_data(struct nvmet_tcp_queue *queue)
nvmet_tcp_prep_recv_ddgst(cmd);
return 0;
}
- nvmet_req_execute(&cmd->req);
+ cmd->req.execute(&cmd->req);
}
nvmet_prepare_receive_pdu(queue);
@@ -1092,7 +1090,7 @@ static int nvmet_tcp_try_recv_ddgst(struct nvmet_tcp_queue *queue)
if (!(cmd->flags & NVMET_TCP_F_INIT_FAILED) &&
cmd->rbytes_done == cmd->req.transfer_len)
- nvmet_req_execute(&cmd->req);
+ cmd->req.execute(&cmd->req);
ret = 0;
out:
nvmet_prepare_receive_pdu(queue);
generated by cgit (git 2.34.1) at 2024-06-08 12:50:03 +0000