Merge tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe pull requests via Christoph:
      - Support some passthrough commands without CAP_SYS_ADMIN (Kanchan
        Joshi)
      - Refactor PCIe probing and reset (Christoph Hellwig)
      - Various fabrics authentication fixes and improvements (Sagi
        Grimberg)
      - Avoid fallback to sequential scan due to transient issues (Uday
        Shankar)
      - Implement support for the DEAC bit in Write Zeroes (Christoph
        Hellwig)
      - Allow overriding the IEEE OUI and firmware revision in configfs
        for nvmet (Aleksandr Miloserdov)
      - Force reconnect when number of queue changes in nvmet (Daniel
        Wagner)
      - Minor fixes and improvements (Uros Bizjak, Joel Granados, Sagi
        Grimberg, Christoph Hellwig, Christophe JAILLET)
      - Fix and cleanup nvme-fc req allocation (Chaitanya Kulkarni)
      - Use the common tagset helpers in nvme-pci driver (Christoph
        Hellwig)
      - Cleanup the nvme-pci removal path (Christoph Hellwig)
      - Use kstrtobool() instead of strtobool (Christophe JAILLET)
      - Allow unprivileged passthrough of Identify Controller (Joel
        Granados)
      - Support io stats on the mpath device (Sagi Grimberg)
      - Minor nvmet cleanup (Sagi Grimberg)

 - MD pull requests via Song:
      - Code cleanups (Christoph)
      - Various fixes

 - Floppy pull request from Denis:
      - Fix a memory leak in the init error path (Yuan)

 - Series fixing some batch wakeup issues with sbitmap (Gabriel)

 - Removal of the pktcdvd driver that was deprecated more than 5 years
   ago, and subsequent removal of the devnode callback in struct
   block_device_operations as no users are now left (Greg)

 - Fix for partition read on an exclusively opened bdev (Jan)

 - Series of elevator API cleanups (Jinlong, Christoph)

 - Series of fixes and cleanups for blk-iocost (Kemeng)

 - Series of fixes and cleanups for blk-throttle (Kemeng)

 - Series adding concurrent support for sync queues in BFQ (Yu)

 - Series bringing drbd a bit closer to the out-of-tree maintained
   version (Christian, Joel, Lars, Philipp)

 - Misc drbd fixes (Wang)

 - blk-wbt fixes and tweaks for enable/disable (Yu)

 - Fixes for mq-deadline for zoned devices (Damien)

 - Add support for read-only and offline zones for null_blk
   (Shin'ichiro)

 - Series fixing the delayed holder tracking, as used by DM (Yu,
   Christoph)

 - Series enabling bio alloc caching for IRQ based IO (Pavel)

 - Series enabling userspace peer-to-peer DMA (Logan)

 - BFQ waker fixes (Khazhismel)

 - Series fixing elevator refcount issues (Christoph, Jinlong)

 - Series cleaning up references around queue destruction (Christoph)

 - Series doing quiesce by tagset, enabling cleanups in drivers
   (Christoph, Chao)

 - Series untangling the queue kobject and queue references (Christoph)

 - Misc fixes and cleanups (Bart, David, Dawei, Jinlong, Kemeng, Ye,
   Yang, Waiman, Shin'ichiro, Randy, Pankaj, Christoph)

* tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux: (247 commits)
  blktrace: Fix output non-blktrace event when blk_classic option enabled
  block: sed-opal: Don't include <linux/kernel.h>
  sed-opal: allow using IOC_OPAL_SAVE for locking too
  blk-cgroup: Fix typo in comment
  block: remove bio_set_op_attrs
  nvmet: don't open-code NVME_NS_ATTR_RO enumeration
  nvme-pci: use the tagset alloc/free helpers
  nvme: add the Apple shared tag workaround to nvme_alloc_io_tag_set
  nvme: only set reserved_tags in nvme_alloc_io_tag_set for fabrics controllers
  nvme: consolidate setting the tagset flags
  nvme: pass nr_maps explicitly to nvme_alloc_io_tag_set
  block: bio_copy_data_iter
  nvme-pci: split out a nvme_pci_ctrl_is_dead helper
  nvme-pci: return early on ctrl state mismatch in nvme_reset_work
  nvme-pci: rename nvme_disable_io_queues
  nvme-pci: cleanup nvme_suspend_queue
  nvme-pci: remove nvme_pci_disable
  nvme-pci: remove nvme_disable_admin_queue
  nvme: merge nvme_shutdown_ctrl into nvme_disable_ctrl
  nvme: use nvme_wait_ready in nvme_shutdown_ctrl
  ...

drivers/nvme/target/configfs.c

@@ -4,6 +4,7 @@
  * Copyright (c) 2015-2016 HGST, a Western Digital Company.
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/kstrtox.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -267,7 +268,7 @@ static ssize_t nvmet_param_pi_enable_store(struct config_item *item,
 	struct nvmet_port *port = to_nvmet_port(item);
 	bool val;
 
-	if (strtobool(page, &val))
+	if (kstrtobool(page, &val))
 		return -EINVAL;
 
 	if (nvmet_is_port_enabled(port, __func__))
@@ -532,7 +533,7 @@ static ssize_t nvmet_ns_enable_store(struct config_item *item,
 	bool enable;
 	int ret = 0;
 
-	if (strtobool(page, &enable))
+	if (kstrtobool(page, &enable))
 		return -EINVAL;
 
 	if (enable)
@@ -556,7 +557,7 @@ static ssize_t nvmet_ns_buffered_io_store(struct config_item *item,
 	struct nvmet_ns *ns = to_nvmet_ns(item);
 	bool val;
 
-	if (strtobool(page, &val))
+	if (kstrtobool(page, &val))
 		return -EINVAL;
 
 	mutex_lock(&ns->subsys->lock);
@@ -579,7 +580,7 @@ static ssize_t nvmet_ns_revalidate_size_store(struct config_item *item,
 	struct nvmet_ns *ns = to_nvmet_ns(item);
 	bool val;
 
-	if (strtobool(page, &val))
+	if (kstrtobool(page, &val))
 		return -EINVAL;
 
 	if (!val)
@@ -728,7 +729,7 @@ static ssize_t nvmet_passthru_enable_store(struct config_item *item,
 	bool enable;
 	int ret = 0;
 
-	if (strtobool(page, &enable))
+	if (kstrtobool(page, &enable))
 		return -EINVAL;
 
 	if (enable)
@@ -995,7 +996,7 @@ static ssize_t nvmet_subsys_attr_allow_any_host_store(struct config_item *item,
 	bool allow_any_host;
 	int ret = 0;
 
-	if (strtobool(page, &allow_any_host))
+	if (kstrtobool(page, &allow_any_host))
 		return -EINVAL;
 
 	down_write(&nvmet_config_sem);
@@ -1262,6 +1263,116 @@ static ssize_t nvmet_subsys_attr_model_store(struct config_item *item,
 }
 CONFIGFS_ATTR(nvmet_subsys_, attr_model);
 
+static ssize_t nvmet_subsys_attr_ieee_oui_show(struct config_item *item,
+					    char *page)
+{
+	struct nvmet_subsys *subsys = to_subsys(item);
+
+	return sysfs_emit(page, "0x%06x\n", subsys->ieee_oui);
+}
+
+static ssize_t nvmet_subsys_attr_ieee_oui_store_locked(struct nvmet_subsys *subsys,
+		const char *page, size_t count)
+{
+	uint32_t val = 0;
+	int ret;
+
+	if (subsys->subsys_discovered) {
+		pr_err("Can't set IEEE OUI. 0x%06x is already assigned\n",
+		      subsys->ieee_oui);
+		return -EINVAL;
+	}
+
+	ret = kstrtou32(page, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	if (val >= 0x1000000)
+		return -EINVAL;
+
+	subsys->ieee_oui = val;
+
+	return count;
+}
+
+static ssize_t nvmet_subsys_attr_ieee_oui_store(struct config_item *item,
+					     const char *page, size_t count)
+{
+	struct nvmet_subsys *subsys = to_subsys(item);
+	ssize_t ret;
+
+	down_write(&nvmet_config_sem);
+	mutex_lock(&subsys->lock);
+	ret = nvmet_subsys_attr_ieee_oui_store_locked(subsys, page, count);
+	mutex_unlock(&subsys->lock);
+	up_write(&nvmet_config_sem);
+
+	return ret;
+}
+CONFIGFS_ATTR(nvmet_subsys_, attr_ieee_oui);
+
+static ssize_t nvmet_subsys_attr_firmware_show(struct config_item *item,
+					    char *page)
+{
+	struct nvmet_subsys *subsys = to_subsys(item);
+
+	return sysfs_emit(page, "%s\n", subsys->firmware_rev);
+}
+
+static ssize_t nvmet_subsys_attr_firmware_store_locked(struct nvmet_subsys *subsys,
+		const char *page, size_t count)
+{
+	int pos = 0, len;
+	char *val;
+
+	if (subsys->subsys_discovered) {
+		pr_err("Can't set firmware revision. %s is already assigned\n",
+		       subsys->firmware_rev);
+		return -EINVAL;
+	}
+
+	len = strcspn(page, "\n");
+	if (!len)
+		return -EINVAL;
+
+	if (len > NVMET_FR_MAX_SIZE) {
+		pr_err("Firmware revision size can not exceed %d Bytes\n",
+		       NVMET_FR_MAX_SIZE);
+		return -EINVAL;
+	}
+
+	for (pos = 0; pos < len; pos++) {
+		if (!nvmet_is_ascii(page[pos]))
+			return -EINVAL;
+	}
+
+	val = kmemdup_nul(page, len, GFP_KERNEL);
+	if (!val)
+		return -ENOMEM;
+
+	kfree(subsys->firmware_rev);
+
+	subsys->firmware_rev = val;
+
+	return count;
+}
+
+static ssize_t nvmet_subsys_attr_firmware_store(struct config_item *item,
+					     const char *page, size_t count)
+{
+	struct nvmet_subsys *subsys = to_subsys(item);
+	ssize_t ret;
+
+	down_write(&nvmet_config_sem);
+	mutex_lock(&subsys->lock);
+	ret = nvmet_subsys_attr_firmware_store_locked(subsys, page, count);
+	mutex_unlock(&subsys->lock);
+	up_write(&nvmet_config_sem);
+
+	return ret;
+}
+CONFIGFS_ATTR(nvmet_subsys_, attr_firmware);
+
 #ifdef CONFIG_BLK_DEV_INTEGRITY
 static ssize_t nvmet_subsys_attr_pi_enable_show(struct config_item *item,
 						char *page)
@@ -1275,7 +1386,7 @@ static ssize_t nvmet_subsys_attr_pi_enable_store(struct config_item *item,
 	struct nvmet_subsys *subsys = to_subsys(item);
 	bool pi_enable;
 
-	if (strtobool(page, &pi_enable))
+	if (kstrtobool(page, &pi_enable))
 		return -EINVAL;
 
 	subsys->pi_support = pi_enable;
@@ -1293,6 +1404,8 @@ static ssize_t nvmet_subsys_attr_qid_max_show(struct config_item *item,
 static ssize_t nvmet_subsys_attr_qid_max_store(struct config_item *item,
 					       const char *page, size_t cnt)
 {
+	struct nvmet_subsys *subsys = to_subsys(item);
+	struct nvmet_ctrl *ctrl;
 	u16 qid_max;
 
 	if (sscanf(page, "%hu\n", &qid_max) != 1)
@@ -1302,8 +1415,13 @@ static ssize_t nvmet_subsys_attr_qid_max_store(struct config_item *item,
 		return -EINVAL;
 
 	down_write(&nvmet_config_sem);
-	to_subsys(item)->max_qid = qid_max;
+	subsys->max_qid = qid_max;
+
+	/* Force reconnect */
+	list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)
+		ctrl->ops->delete_ctrl(ctrl);
 	up_write(&nvmet_config_sem);
+
 	return cnt;
 }
 CONFIGFS_ATTR(nvmet_subsys_, attr_qid_max);
@@ -1316,6 +1434,8 @@ static struct configfs_attribute *nvmet_subsys_attrs[] = {
 	&nvmet_subsys_attr_attr_cntlid_max,
 	&nvmet_subsys_attr_attr_model,
 	&nvmet_subsys_attr_attr_qid_max,
+	&nvmet_subsys_attr_attr_ieee_oui,
+	&nvmet_subsys_attr_attr_firmware,
 #ifdef CONFIG_BLK_DEV_INTEGRITY
 	&nvmet_subsys_attr_attr_pi_enable,
 #endif
@@ -1395,7 +1515,7 @@ static ssize_t nvmet_referral_enable_store(struct config_item *item,
 	struct nvmet_port *port = to_nvmet_port(item);
 	bool enable;
 
-	if (strtobool(page, &enable))
+	if (kstrtobool(page, &enable))
 		goto inval;
 
 	if (enable)