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path: root/drivers/block/mtip32xx
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Diffstat (limited to 'drivers/block/mtip32xx')
-rw-r--r--drivers/block/mtip32xx/Kconfig2
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c500
-rw-r--r--drivers/block/mtip32xx/mtip32xx.h18
3 files changed, 327 insertions, 193 deletions
diff --git a/drivers/block/mtip32xx/Kconfig b/drivers/block/mtip32xx/Kconfig
index 1fca1f996b45..0ba837fc62a8 100644
--- a/drivers/block/mtip32xx/Kconfig
+++ b/drivers/block/mtip32xx/Kconfig
@@ -4,6 +4,6 @@
config BLK_DEV_PCIESSD_MTIP32XX
tristate "Block Device Driver for Micron PCIe SSDs"
- depends on PCI && GENERIC_HARDIRQS
+ depends on PCI
help
This enables the block driver for Micron PCIe SSDs.
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 952dbfe22126..050c71267f14 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -126,64 +126,30 @@ struct mtip_compat_ide_task_request_s {
static bool mtip_check_surprise_removal(struct pci_dev *pdev)
{
u16 vendor_id = 0;
+ struct driver_data *dd = pci_get_drvdata(pdev);
+
+ if (dd->sr)
+ return true;
/* Read the vendorID from the configuration space */
pci_read_config_word(pdev, 0x00, &vendor_id);
- if (vendor_id == 0xFFFF)
+ if (vendor_id == 0xFFFF) {
+ dd->sr = true;
+ if (dd->queue)
+ set_bit(QUEUE_FLAG_DEAD, &dd->queue->queue_flags);
+ else
+ dev_warn(&dd->pdev->dev,
+ "%s: dd->queue is NULL\n", __func__);
+ if (dd->port) {
+ set_bit(MTIP_PF_SR_CLEANUP_BIT, &dd->port->flags);
+ wake_up_interruptible(&dd->port->svc_wait);
+ } else
+ dev_warn(&dd->pdev->dev,
+ "%s: dd->port is NULL\n", __func__);
return true; /* device removed */
-
- return false; /* device present */
-}
-
-/*
- * This function is called for clean the pending command in the
- * command slot during the surprise removal of device and return
- * error to the upper layer.
- *
- * @dd Pointer to the DRIVER_DATA structure.
- *
- * return value
- * None
- */
-static void mtip_command_cleanup(struct driver_data *dd)
-{
- int group = 0, commandslot = 0, commandindex = 0;
- struct mtip_cmd *command;
- struct mtip_port *port = dd->port;
- static int in_progress;
-
- if (in_progress)
- return;
-
- in_progress = 1;
-
- for (group = 0; group < 4; group++) {
- for (commandslot = 0; commandslot < 32; commandslot++) {
- if (!(port->allocated[group] & (1 << commandslot)))
- continue;
-
- commandindex = group << 5 | commandslot;
- command = &port->commands[commandindex];
-
- if (atomic_read(&command->active)
- && (command->async_callback)) {
- command->async_callback(command->async_data,
- -ENODEV);
- command->async_callback = NULL;
- command->async_data = NULL;
- }
-
- dma_unmap_sg(&port->dd->pdev->dev,
- command->sg,
- command->scatter_ents,
- command->direction);
- }
}
- up(&port->cmd_slot);
-
- set_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag);
- in_progress = 0;
+ return false; /* device present */
}
/*
@@ -222,10 +188,7 @@ static int get_slot(struct mtip_port *port)
}
dev_warn(&port->dd->pdev->dev, "Failed to get a tag.\n");
- if (mtip_check_surprise_removal(port->dd->pdev)) {
- /* Device not present, clean outstanding commands */
- mtip_command_cleanup(port->dd);
- }
+ mtip_check_surprise_removal(port->dd->pdev);
return -1;
}
@@ -246,6 +209,107 @@ static inline void release_slot(struct mtip_port *port, int tag)
}
/*
+ * IO completion function.
+ *
+ * This completion function is called by the driver ISR when a
+ * command that was issued by the kernel completes. It first calls the
+ * asynchronous completion function which normally calls back into the block
+ * layer passing the asynchronous callback data, then unmaps the
+ * scatter list associated with the completed command, and finally
+ * clears the allocated bit associated with the completed command.
+ *
+ * @port Pointer to the port data structure.
+ * @tag Tag of the command.
+ * @data Pointer to driver_data.
+ * @status Completion status.
+ *
+ * return value
+ * None
+ */
+static void mtip_async_complete(struct mtip_port *port,
+ int tag,
+ void *data,
+ int status)
+{
+ struct mtip_cmd *command;
+ struct driver_data *dd = data;
+ int cb_status = status ? -EIO : 0;
+
+ if (unlikely(!dd) || unlikely(!port))
+ return;
+
+ command = &port->commands[tag];
+
+ if (unlikely(status == PORT_IRQ_TF_ERR)) {
+ dev_warn(&port->dd->pdev->dev,
+ "Command tag %d failed due to TFE\n", tag);
+ }
+
+ /* Upper layer callback */
+ if (likely(command->async_callback))
+ command->async_callback(command->async_data, cb_status);
+
+ command->async_callback = NULL;
+ command->comp_func = NULL;
+
+ /* Unmap the DMA scatter list entries */
+ dma_unmap_sg(&dd->pdev->dev,
+ command->sg,
+ command->scatter_ents,
+ command->direction);
+
+ /* Clear the allocated and active bits for the command */
+ atomic_set(&port->commands[tag].active, 0);
+ release_slot(port, tag);
+
+ up(&port->cmd_slot);
+}
+
+/*
+ * This function is called for clean the pending command in the
+ * command slot during the surprise removal of device and return
+ * error to the upper layer.
+ *
+ * @dd Pointer to the DRIVER_DATA structure.
+ *
+ * return value
+ * None
+ */
+static void mtip_command_cleanup(struct driver_data *dd)
+{
+ int tag = 0;
+ struct mtip_cmd *cmd;
+ struct mtip_port *port = dd->port;
+ unsigned int num_cmd_slots = dd->slot_groups * 32;
+
+ if (!test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag))
+ return;
+
+ if (!port)
+ return;
+
+ cmd = &port->commands[MTIP_TAG_INTERNAL];
+ if (atomic_read(&cmd->active))
+ if (readl(port->cmd_issue[MTIP_TAG_INTERNAL]) &
+ (1 << MTIP_TAG_INTERNAL))
+ if (cmd->comp_func)
+ cmd->comp_func(port, MTIP_TAG_INTERNAL,
+ cmd->comp_data, -ENODEV);
+
+ while (1) {
+ tag = find_next_bit(port->allocated, num_cmd_slots, tag);
+ if (tag >= num_cmd_slots)
+ break;
+
+ cmd = &port->commands[tag];
+ if (atomic_read(&cmd->active))
+ mtip_async_complete(port, tag, dd, -ENODEV);
+ }
+
+ set_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag);
+}
+
+/*
* Reset the HBA (without sleeping)
*
* @dd Pointer to the driver data structure.
@@ -584,6 +648,9 @@ static void mtip_timeout_function(unsigned long int data)
if (unlikely(!port))
return;
+ if (unlikely(port->dd->sr))
+ return;
+
if (test_bit(MTIP_DDF_RESUME_BIT, &port->dd->dd_flag)) {
mod_timer(&port->cmd_timer,
jiffies + msecs_to_jiffies(30000));
@@ -675,66 +742,6 @@ static void mtip_timeout_function(unsigned long int data)
}
/*
- * IO completion function.
- *
- * This completion function is called by the driver ISR when a
- * command that was issued by the kernel completes. It first calls the
- * asynchronous completion function which normally calls back into the block
- * layer passing the asynchronous callback data, then unmaps the
- * scatter list associated with the completed command, and finally
- * clears the allocated bit associated with the completed command.
- *
- * @port Pointer to the port data structure.
- * @tag Tag of the command.
- * @data Pointer to driver_data.
- * @status Completion status.
- *
- * return value
- * None
- */
-static void mtip_async_complete(struct mtip_port *port,
- int tag,
- void *data,
- int status)
-{
- struct mtip_cmd *command;
- struct driver_data *dd = data;
- int cb_status = status ? -EIO : 0;
-
- if (unlikely(!dd) || unlikely(!port))
- return;
-
- command = &port->commands[tag];
-
- if (unlikely(status == PORT_IRQ_TF_ERR)) {
- dev_warn(&port->dd->pdev->dev,
- "Command tag %d failed due to TFE\n", tag);
- }
-
- /* Upper layer callback */
- if (likely(command->async_callback))
- command->async_callback(command->async_data, cb_status);
-
- command->async_callback = NULL;
- command->comp_func = NULL;
-
- /* Unmap the DMA scatter list entries */
- dma_unmap_sg(&dd->pdev->dev,
- command->sg,
- command->scatter_ents,
- command->direction);
-
- /* Clear the allocated and active bits for the command */
- atomic_set(&port->commands[tag].active, 0);
- release_slot(port, tag);
-
- if (unlikely(command->unaligned))
- up(&port->cmd_slot_unal);
- else
- up(&port->cmd_slot);
-}
-
-/*
* Internal command completion callback function.
*
* This function is normally called by the driver ISR when an internal
@@ -854,7 +861,6 @@ static void mtip_handle_tfe(struct driver_data *dd)
"Missing completion func for tag %d",
tag);
if (mtip_check_surprise_removal(dd->pdev)) {
- mtip_command_cleanup(dd);
/* don't proceed further */
return;
}
@@ -1018,14 +1024,12 @@ static inline void mtip_workq_sdbfx(struct mtip_port *port, int group,
command->comp_data,
0);
} else {
- dev_warn(&dd->pdev->dev,
- "Null completion "
- "for tag %d",
+ dev_dbg(&dd->pdev->dev,
+ "Null completion for tag %d",
tag);
if (mtip_check_surprise_removal(
dd->pdev)) {
- mtip_command_cleanup(dd);
return;
}
}
@@ -1145,7 +1149,6 @@ static inline irqreturn_t mtip_handle_irq(struct driver_data *data)
if (unlikely(port_stat & PORT_IRQ_ERR)) {
if (unlikely(mtip_check_surprise_removal(dd->pdev))) {
- mtip_command_cleanup(dd);
/* don't proceed further */
return IRQ_HANDLED;
}
@@ -2806,34 +2809,51 @@ static ssize_t show_device_status(struct device_driver *drv, char *buf)
static ssize_t mtip_hw_read_device_status(struct file *f, char __user *ubuf,
size_t len, loff_t *offset)
{
+ struct driver_data *dd = (struct driver_data *)f->private_data;
int size = *offset;
- char buf[MTIP_DFS_MAX_BUF_SIZE];
+ char *buf;
+ int rv = 0;
if (!len || *offset)
return 0;
+ buf = kzalloc(MTIP_DFS_MAX_BUF_SIZE, GFP_KERNEL);
+ if (!buf) {
+ dev_err(&dd->pdev->dev,
+ "Memory allocation: status buffer\n");
+ return -ENOMEM;
+ }
+
size += show_device_status(NULL, buf);
*offset = size <= len ? size : len;
size = copy_to_user(ubuf, buf, *offset);
if (size)
- return -EFAULT;
+ rv = -EFAULT;
- return *offset;
+ kfree(buf);
+ return rv ? rv : *offset;
}
static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
size_t len, loff_t *offset)
{
struct driver_data *dd = (struct driver_data *)f->private_data;
- char buf[MTIP_DFS_MAX_BUF_SIZE];
+ char *buf;
u32 group_allocated;
int size = *offset;
- int n;
+ int n, rv = 0;
if (!len || size)
return 0;
+ buf = kzalloc(MTIP_DFS_MAX_BUF_SIZE, GFP_KERNEL);
+ if (!buf) {
+ dev_err(&dd->pdev->dev,
+ "Memory allocation: register buffer\n");
+ return -ENOMEM;
+ }
+
size += sprintf(&buf[size], "H/ S ACTive : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
@@ -2888,21 +2908,30 @@ static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
*offset = size <= len ? size : len;
size = copy_to_user(ubuf, buf, *offset);
if (size)
- return -EFAULT;
+ rv = -EFAULT;
- return *offset;
+ kfree(buf);
+ return rv ? rv : *offset;
}
static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
size_t len, loff_t *offset)
{
struct driver_data *dd = (struct driver_data *)f->private_data;
- char buf[MTIP_DFS_MAX_BUF_SIZE];
+ char *buf;
int size = *offset;
+ int rv = 0;
if (!len || size)
return 0;
+ buf = kzalloc(MTIP_DFS_MAX_BUF_SIZE, GFP_KERNEL);
+ if (!buf) {
+ dev_err(&dd->pdev->dev,
+ "Memory allocation: flag buffer\n");
+ return -ENOMEM;
+ }
+
size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n",
dd->port->flags);
size += sprintf(&buf[size], "Flag-dd : [ %08lX ]\n",
@@ -2911,9 +2940,10 @@ static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
*offset = size <= len ? size : len;
size = copy_to_user(ubuf, buf, *offset);
if (size)
- return -EFAULT;
+ rv = -EFAULT;
- return *offset;
+ kfree(buf);
+ return rv ? rv : *offset;
}
static const struct file_operations mtip_device_status_fops = {
@@ -3006,6 +3036,46 @@ static void mtip_hw_debugfs_exit(struct driver_data *dd)
debugfs_remove_recursive(dd->dfs_node);
}
+static int mtip_free_orphan(struct driver_data *dd)
+{
+ struct kobject *kobj;
+
+ if (dd->bdev) {
+ if (dd->bdev->bd_holders >= 1)
+ return -2;
+
+ bdput(dd->bdev);
+ dd->bdev = NULL;
+ }
+
+ mtip_hw_debugfs_exit(dd);
+
+ spin_lock(&rssd_index_lock);
+ ida_remove(&rssd_index_ida, dd->index);
+ spin_unlock(&rssd_index_lock);
+
+ if (!test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag) &&
+ test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag)) {
+ put_disk(dd->disk);
+ } else {
+ if (dd->disk) {
+ kobj = kobject_get(&disk_to_dev(dd->disk)->kobj);
+ if (kobj) {
+ mtip_hw_sysfs_exit(dd, kobj);
+ kobject_put(kobj);
+ }
+ del_gendisk(dd->disk);
+ dd->disk = NULL;
+ }
+ if (dd->queue) {
+ dd->queue->queuedata = NULL;
+ blk_cleanup_queue(dd->queue);
+ dd->queue = NULL;
+ }
+ }
+ kfree(dd);
+ return 0;
+}
/*
* Perform any init/resume time hardware setup
@@ -3154,6 +3224,7 @@ static int mtip_service_thread(void *data)
unsigned long slot, slot_start, slot_wrap;
unsigned int num_cmd_slots = dd->slot_groups * 32;
struct mtip_port *port = dd->port;
+ int ret;
while (1) {
/*
@@ -3164,13 +3235,18 @@ static int mtip_service_thread(void *data)
!(port->flags & MTIP_PF_PAUSE_IO));
if (kthread_should_stop())
+ goto st_out;
+
+ set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
+
+ /* If I am an orphan, start self cleanup */
+ if (test_bit(MTIP_PF_SR_CLEANUP_BIT, &port->flags))
break;
if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT,
&dd->dd_flag)))
- break;
+ goto st_out;
- set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
if (test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) {
slot = 1;
/* used to restrict the loop to one iteration */
@@ -3201,7 +3277,7 @@ static int mtip_service_thread(void *data)
clear_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags);
} else if (test_bit(MTIP_PF_REBUILD_BIT, &port->flags)) {
- if (!mtip_ftl_rebuild_poll(dd))
+ if (mtip_ftl_rebuild_poll(dd) < 0)
set_bit(MTIP_DDF_REBUILD_FAILED_BIT,
&dd->dd_flag);
clear_bit(MTIP_PF_REBUILD_BIT, &port->flags);
@@ -3209,8 +3285,30 @@ static int mtip_service_thread(void *data)
clear_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
if (test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags))
+ goto st_out;
+ }
+
+ /* wait for pci remove to exit */
+ while (1) {
+ if (test_bit(MTIP_DDF_REMOVE_DONE_BIT, &dd->dd_flag))
break;
+ msleep_interruptible(1000);
+ if (kthread_should_stop())
+ goto st_out;
+ }
+
+ while (1) {
+ ret = mtip_free_orphan(dd);
+ if (!ret) {
+ /* NOTE: All data structures are invalid, do not
+ * access any here */
+ return 0;
+ }
+ msleep_interruptible(1000);
+ if (kthread_should_stop())
+ goto st_out;
}
+st_out:
return 0;
}
@@ -3437,13 +3535,13 @@ static int mtip_hw_init(struct driver_data *dd)
rv = -EFAULT;
goto out3;
}
+ mtip_dump_identify(dd->port);
if (*(dd->port->identify + MTIP_FTL_REBUILD_OFFSET) ==
MTIP_FTL_REBUILD_MAGIC) {
set_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags);
return MTIP_FTL_REBUILD_MAGIC;
}
- mtip_dump_identify(dd->port);
/* check write protect, over temp and rebuild statuses */
rv = mtip_read_log_page(dd->port, ATA_LOG_SATA_NCQ,
@@ -3467,8 +3565,8 @@ static int mtip_hw_init(struct driver_data *dd)
}
if (buf[288] == 0xBF) {
dev_info(&dd->pdev->dev,
- "Drive indicates rebuild has failed.\n");
- /* TODO */
+ "Drive is in security locked state.\n");
+ set_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag);
}
}
@@ -3523,9 +3621,8 @@ static int mtip_hw_exit(struct driver_data *dd)
* Send standby immediate (E0h) to the drive so that it
* saves its state.
*/
- if (!test_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag)) {
-
- if (!test_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags))
+ if (!dd->sr) {
+ if (!test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag))
if (mtip_standby_immediate(dd->port))
dev_warn(&dd->pdev->dev,
"STANDBY IMMEDIATE failed\n");
@@ -3551,6 +3648,7 @@ static int mtip_hw_exit(struct driver_data *dd)
dd->port->command_list_dma);
/* Free the memory allocated for the for structure. */
kfree(dd->port);
+ dd->port = NULL;
return 0;
}
@@ -3572,7 +3670,8 @@ static int mtip_hw_shutdown(struct driver_data *dd)
* Send standby immediate (E0h) to the drive so that it
* saves its state.
*/
- mtip_standby_immediate(dd->port);
+ if (!dd->sr && dd->port)
+ mtip_standby_immediate(dd->port);
return 0;
}
@@ -3887,6 +3986,10 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
bio_endio(bio, -ENODATA);
return;
}
+ if (test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag)) {
+ bio_endio(bio, -ENXIO);
+ return;
+ }
}
if (unlikely(bio->bi_rw & REQ_DISCARD)) {
@@ -4010,6 +4113,8 @@ static int mtip_block_initialize(struct driver_data *dd)
dd->disk->private_data = dd;
dd->index = index;
+ mtip_hw_debugfs_init(dd);
+
/*
* if rebuild pending, start the service thread, and delay the block
* queue creation and add_disk()
@@ -4068,6 +4173,7 @@ skip_create_disk:
/* Enable the block device and add it to /dev */
add_disk(dd->disk);
+ dd->bdev = bdget_disk(dd->disk, 0);
/*
* Now that the disk is active, initialize any sysfs attributes
* managed by the protocol layer.
@@ -4077,7 +4183,6 @@ skip_create_disk:
mtip_hw_sysfs_init(dd, kobj);
kobject_put(kobj);
}
- mtip_hw_debugfs_init(dd);
if (dd->mtip_svc_handler) {
set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag);
@@ -4103,7 +4208,8 @@ start_service_thread:
return rv;
kthread_run_error:
- mtip_hw_debugfs_exit(dd);
+ bdput(dd->bdev);
+ dd->bdev = NULL;
/* Delete our gendisk. This also removes the device from /dev */
del_gendisk(dd->disk);
@@ -4112,6 +4218,7 @@ read_capacity_error:
blk_cleanup_queue(dd->queue);
block_queue_alloc_init_error:
+ mtip_hw_debugfs_exit(dd);
disk_index_error:
spin_lock(&rssd_index_lock);
ida_remove(&rssd_index_ida, index);
@@ -4141,40 +4248,48 @@ static int mtip_block_remove(struct driver_data *dd)
{
struct kobject *kobj;
- if (dd->mtip_svc_handler) {
- set_bit(MTIP_PF_SVC_THD_STOP_BIT, &dd->port->flags);
- wake_up_interruptible(&dd->port->svc_wait);
- kthread_stop(dd->mtip_svc_handler);
- }
+ if (!dd->sr) {
+ mtip_hw_debugfs_exit(dd);
- /* Clean up the sysfs attributes, if created */
- if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) {
- kobj = kobject_get(&disk_to_dev(dd->disk)->kobj);
- if (kobj) {
- mtip_hw_sysfs_exit(dd, kobj);
- kobject_put(kobj);
+ if (dd->mtip_svc_handler) {
+ set_bit(MTIP_PF_SVC_THD_STOP_BIT, &dd->port->flags);
+ wake_up_interruptible(&dd->port->svc_wait);
+ kthread_stop(dd->mtip_svc_handler);
}
- }
- mtip_hw_debugfs_exit(dd);
- /*
- * Delete our gendisk structure. This also removes the device
- * from /dev
- */
- if (dd->disk) {
- if (dd->disk->queue)
- del_gendisk(dd->disk);
- else
- put_disk(dd->disk);
- }
-
- spin_lock(&rssd_index_lock);
- ida_remove(&rssd_index_ida, dd->index);
- spin_unlock(&rssd_index_lock);
+ /* Clean up the sysfs attributes, if created */
+ if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) {
+ kobj = kobject_get(&disk_to_dev(dd->disk)->kobj);
+ if (kobj) {
+ mtip_hw_sysfs_exit(dd, kobj);
+ kobject_put(kobj);
+ }
+ }
+ /*
+ * Delete our gendisk structure. This also removes the device
+ * from /dev
+ */
+ if (dd->bdev) {
+ bdput(dd->bdev);
+ dd->bdev = NULL;
+ }
+ if (dd->disk) {
+ if (dd->disk->queue) {
+ del_gendisk(dd->disk);
+ blk_cleanup_queue(dd->queue);
+ dd->queue = NULL;
+ } else
+ put_disk(dd->disk);
+ }
+ dd->disk = NULL;
- blk_cleanup_queue(dd->queue);
- dd->disk = NULL;
- dd->queue = NULL;
+ spin_lock(&rssd_index_lock);
+ ida_remove(&rssd_index_ida, dd->index);
+ spin_unlock(&rssd_index_lock);
+ } else {
+ dev_info(&dd->pdev->dev, "device %s surprise removal\n",
+ dd->disk->disk_name);
+ }
/* De-initialize the protocol layer. */
mtip_hw_exit(dd);
@@ -4490,8 +4605,7 @@ done:
static void mtip_pci_remove(struct pci_dev *pdev)
{
struct driver_data *dd = pci_get_drvdata(pdev);
- int counter = 0;
- unsigned long flags;
+ unsigned long flags, to;
set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag);
@@ -4500,17 +4614,22 @@ static void mtip_pci_remove(struct pci_dev *pdev)
list_add(&dd->remove_list, &removing_list);
spin_unlock_irqrestore(&dev_lock, flags);
- if (mtip_check_surprise_removal(pdev)) {
- while (!test_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag)) {
- counter++;
- msleep(20);
- if (counter == 10) {
- /* Cleanup the outstanding commands */
- mtip_command_cleanup(dd);
- break;
- }
- }
+ mtip_check_surprise_removal(pdev);
+ synchronize_irq(dd->pdev->irq);
+
+ /* Spin until workers are done */
+ to = jiffies + msecs_to_jiffies(4000);
+ do {
+ msleep(20);
+ } while (atomic_read(&dd->irq_workers_active) != 0 &&
+ time_before(jiffies, to));
+
+ if (atomic_read(&dd->irq_workers_active) != 0) {
+ dev_warn(&dd->pdev->dev,
+ "Completion workers still active!\n");
}
+ /* Cleanup the outstanding commands */
+ mtip_command_cleanup(dd);
/* Clean up the block layer. */
mtip_block_remove(dd);
@@ -4529,8 +4648,15 @@ static void mtip_pci_remove(struct pci_dev *pdev)
list_del_init(&dd->remove_list);
spin_unlock_irqrestore(&dev_lock, flags);
- kfree(dd);
+ if (!dd->sr)
+ kfree(dd);
+ else
+ set_bit(MTIP_DDF_REMOVE_DONE_BIT, &dd->dd_flag);
+
pcim_iounmap_regions(pdev, 1 << MTIP_ABAR);
+ pci_set_drvdata(pdev, NULL);
+ pci_dev_put(pdev);
+
}
/*
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index 3bb8a295fbe4..9be7a1582ad3 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -140,6 +140,7 @@ enum {
MTIP_PF_SVC_THD_ACTIVE_BIT = 4,
MTIP_PF_ISSUE_CMDS_BIT = 5,
MTIP_PF_REBUILD_BIT = 6,
+ MTIP_PF_SR_CLEANUP_BIT = 7,
MTIP_PF_SVC_THD_STOP_BIT = 8,
/* below are bit numbers in 'dd_flag' defined in driver_data */
@@ -147,15 +148,18 @@ enum {
MTIP_DDF_REMOVE_PENDING_BIT = 1,
MTIP_DDF_OVER_TEMP_BIT = 2,
MTIP_DDF_WRITE_PROTECT_BIT = 3,
- MTIP_DDF_STOP_IO = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) |
- (1 << MTIP_DDF_SEC_LOCK_BIT) |
- (1 << MTIP_DDF_OVER_TEMP_BIT) |
- (1 << MTIP_DDF_WRITE_PROTECT_BIT)),
-
+ MTIP_DDF_REMOVE_DONE_BIT = 4,
MTIP_DDF_CLEANUP_BIT = 5,
MTIP_DDF_RESUME_BIT = 6,
MTIP_DDF_INIT_DONE_BIT = 7,
MTIP_DDF_REBUILD_FAILED_BIT = 8,
+
+ MTIP_DDF_STOP_IO = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) |
+ (1 << MTIP_DDF_SEC_LOCK_BIT) |
+ (1 << MTIP_DDF_OVER_TEMP_BIT) |
+ (1 << MTIP_DDF_WRITE_PROTECT_BIT) |
+ (1 << MTIP_DDF_REBUILD_FAILED_BIT)),
+
};
struct smart_attr {
@@ -499,6 +503,8 @@ struct driver_data {
bool trim_supp; /* flag indicating trim support */
+ bool sr;
+
int numa_node; /* NUMA support */
char workq_name[32];
@@ -511,6 +517,8 @@ struct driver_data {
int isr_binding;
+ struct block_device *bdev;
+
int unal_qdepth; /* qdepth of unaligned IO queue */
struct list_head online_list; /* linkage for online list */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 20:04:28 +0000