From: Kevin Barnett <kevin.barnett@xxxxxxxxxxxxx>
* synchronize: LUN resets, shutdowns, suspend, hibernate,
OFA, and controller offline events.
* prevent I/O during the the above conditions.
Reviewed-by: Scott Benesh <scott.benesh@xxxxxxxxxxxxx>
Reviewed-by: Scott Teel <scott.teel@xxxxxxxxxxxxx>
Signed-off-by: Kevin Barnett <kevin.barnett@xxxxxxxxxxxxx>
Signed-off-by: Don Brace <don.brace@xxxxxxxxxxxxx>
---
drivers/scsi/smartpqi/smartpqi.h | 48 -
drivers/scsi/smartpqi/smartpqi_init.c | 1157 +++++++++++++--------------------
2 files changed, 474 insertions(+), 731 deletions(-)
diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index 976bfd8c5192..0b94c755a74c 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -130,9 +130,12 @@ struct pqi_iu_header {
/* of this header */
__le16 response_queue_id; /* specifies the OQ where the */
/* response IU is to be delivered */
- u8 work_area[2]; /* reserved for driver use */
+ u16 driver_flags; /* reserved for driver use */
};
+/* manifest constants for pqi_iu_header.driver_flags */
+#define PQI_DRIVER_NONBLOCKABLE_REQUEST 0x1
+
/*
* According to the PQI spec, the IU header is only the first 4 bytes of our
* pqi_iu_header structure.
@@ -508,10 +511,6 @@ struct pqi_vendor_general_response {
#define PQI_OFA_SIGNATURE "OFA_QRM"
#define PQI_OFA_MAX_SG_DESCRIPTORS 64
-#define PQI_OFA_MEMORY_DESCRIPTOR_LENGTH \
- (offsetof(struct pqi_ofa_memory, sg_descriptor) + \
- (PQI_OFA_MAX_SG_DESCRIPTORS * sizeof(struct pqi_sg_descriptor)))
-
struct pqi_ofa_memory {
__le64 signature; /* "OFA_QRM" */
__le16 version; /* version of this struct (1 = 1st version) */
@@ -519,7 +518,7 @@ struct pqi_ofa_memory {
__le32 bytes_allocated; /* total allocated memory in bytes */
__le16 num_memory_descriptors;
u8 reserved1[2];
- struct pqi_sg_descriptor sg_descriptor[1];
+ struct pqi_sg_descriptor sg_descriptor[PQI_OFA_MAX_SG_DESCRIPTORS];
};
struct pqi_aio_error_info {
@@ -850,7 +849,8 @@ struct pqi_config_table_firmware_features {
#define PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT 13
#define PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT 14
#define PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME 15
-#define PQI_FIRMWARE_FEATURE_MAXIMUM 15
+#define PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN 16
+#define PQI_FIRMWARE_FEATURE_MAXIMUM 16
struct pqi_config_table_debug {
struct pqi_config_table_section_header header;
@@ -1071,7 +1071,6 @@ struct pqi_scsi_dev {
u8 volume_offline : 1;
u8 rescan : 1;
bool aio_enabled; /* only valid for physical disks */
- bool in_reset;
bool in_remove;
bool device_offline;
u8 vendor[8]; /* bytes 8-15 of inquiry data */
@@ -1107,6 +1106,7 @@ struct pqi_scsi_dev {
struct pqi_stream_data stream_data[NUM_STREAMS_PER_LUN];
atomic_t scsi_cmds_outstanding;
atomic_t raid_bypass_cnt;
+ u8 page_83_identifier[16];
};
/* VPD inquiry pages */
@@ -1212,10 +1212,8 @@ struct pqi_io_request {
struct pqi_event {
bool pending;
u8 event_type;
- __le16 event_id;
- __le32 additional_event_id;
- __le32 ofa_bytes_requested;
- __le16 ofa_cancel_reason;
+ u16 event_id;
+ u32 additional_event_id;
};
#define PQI_RESERVED_IO_SLOTS_LUN_RESET 1
@@ -1287,12 +1285,9 @@ struct pqi_ctrl_info {
struct mutex scan_mutex;
struct mutex lun_reset_mutex;
- struct mutex ofa_mutex; /* serialize ofa */
bool controller_online;
bool block_requests;
- bool block_device_reset;
- bool in_ofa;
- bool in_shutdown;
+ bool scan_blocked;
u8 inbound_spanning_supported : 1;
u8 outbound_spanning_supported : 1;
u8 pqi_mode_enabled : 1;
@@ -1300,6 +1295,7 @@ struct pqi_ctrl_info {
u8 soft_reset_handshake_supported : 1;
u8 raid_iu_timeout_supported : 1;
u8 tmf_iu_timeout_supported : 1;
+ u8 unique_wwid_in_report_phys_lun_supported : 1;
u8 enable_r1_writes : 1;
u8 enable_r5_writes : 1;
u8 enable_r6_writes : 1;
@@ -1341,14 +1337,14 @@ struct pqi_ctrl_info {
atomic_t num_blocked_threads;
wait_queue_head_t block_requests_wait;
- struct list_head raid_bypass_retry_list;
- spinlock_t raid_bypass_retry_list_lock;
- struct work_struct raid_bypass_retry_work;
-
+ struct mutex ofa_mutex;
struct pqi_ofa_memory *pqi_ofa_mem_virt_addr;
dma_addr_t pqi_ofa_mem_dma_handle;
void **pqi_ofa_chunk_virt_addr;
- atomic_t sync_cmds_outstanding;
+ struct work_struct ofa_memory_alloc_work;
+ struct work_struct ofa_quiesce_work;
+ u32 ofa_bytes_requested;
+ u16 ofa_cancel_reason;
};
enum pqi_ctrl_mode {
@@ -1619,16 +1615,6 @@ struct bmic_diag_options {
#pragma pack()
-static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
-{
- atomic_inc(&ctrl_info->num_busy_threads);
-}
-
-static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
-{
- atomic_dec(&ctrl_info->num_busy_threads);
-}
-
static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost)
{
void *hostdata = shost_priv(shost);
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 1eb677bc6c69..082b17e9bd80 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -45,6 +45,9 @@
#define PQI_EXTRA_SGL_MEMORY (12 * sizeof(struct pqi_sg_descriptor))
+#define PQI_POST_RESET_DELAY_SECS 5
+#define PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS 10
+
MODULE_AUTHOR("Microsemi");
MODULE_DESCRIPTION("Driver for Microsemi Smart Family Controller version "
DRIVER_VERSION);
@@ -54,7 +57,6 @@ MODULE_LICENSE("GPL");
static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info);
static void pqi_ctrl_offline_worker(struct work_struct *work);
-static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info);
static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info);
static void pqi_scan_start(struct Scsi_Host *shost);
static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
@@ -62,7 +64,7 @@ static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
struct pqi_io_request *io_request);
static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
struct pqi_iu_header *request, unsigned int flags,
- struct pqi_raid_error_info *error_info, unsigned long timeout_msecs);
+ struct pqi_raid_error_info *error_info);
static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
unsigned int cdb_length, struct pqi_queue_group *queue_group,
@@ -77,9 +79,8 @@ static int pqi_aio_submit_r56_write_io(struct pqi_ctrl_info *ctrl_info,
struct pqi_scsi_dev_raid_map_data *rmd);
static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info);
static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info);
-static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info);
-static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info,
- u32 bytes_requested);
+static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs);
+static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info);
static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info);
static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info);
static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
@@ -245,14 +246,66 @@ static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info,
sis_write_driver_scratch(ctrl_info, mode);
}
+static inline void pqi_ctrl_block_scan(struct pqi_ctrl_info *ctrl_info)
+{
+ ctrl_info->scan_blocked = true;
+ mutex_lock(&ctrl_info->scan_mutex);
+}
+
+static inline void pqi_ctrl_unblock_scan(struct pqi_ctrl_info *ctrl_info)
+{
+ ctrl_info->scan_blocked = false;
+ mutex_unlock(&ctrl_info->scan_mutex);
+}
+
+static inline bool pqi_ctrl_scan_blocked(struct pqi_ctrl_info *ctrl_info)
+{
+ return ctrl_info->scan_blocked;
+}
+
static inline void pqi_ctrl_block_device_reset(struct pqi_ctrl_info *ctrl_info)
{
- ctrl_info->block_device_reset = true;
+ mutex_lock(&ctrl_info->lun_reset_mutex);
+}
+
+static inline void pqi_ctrl_unblock_device_reset(struct pqi_ctrl_info *ctrl_info)
+{
+ mutex_unlock(&ctrl_info->lun_reset_mutex);
+}
+
+static inline void pqi_scsi_block_requests(struct pqi_ctrl_info *ctrl_info)
+{
+ struct Scsi_Host *shost;
+ unsigned int num_loops;
+ int msecs_sleep;
+
+ shost = ctrl_info->scsi_host;
+
+ scsi_block_requests(shost);
+
+ num_loops = 0;
+ msecs_sleep = 20;
+ while (scsi_host_busy(shost)) {
+ num_loops++;
+ if (num_loops == 10)
+ msecs_sleep = 500;
+ msleep(msecs_sleep);
+ }
+}
+
+static inline void pqi_scsi_unblock_requests(struct pqi_ctrl_info *ctrl_info)
+{
+ scsi_unblock_requests(ctrl_info->scsi_host);
+}
+
+static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
+{
+ atomic_inc(&ctrl_info->num_busy_threads);
}
-static inline bool pqi_device_reset_blocked(struct pqi_ctrl_info *ctrl_info)
+static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
{
- return ctrl_info->block_device_reset;
+ atomic_dec(&ctrl_info->num_busy_threads);
}
static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
@@ -263,44 +316,23 @@ static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info)
{
ctrl_info->block_requests = true;
- scsi_block_requests(ctrl_info->scsi_host);
}
static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info)
{
ctrl_info->block_requests = false;
wake_up_all(&ctrl_info->block_requests_wait);
- pqi_retry_raid_bypass_requests(ctrl_info);
- scsi_unblock_requests(ctrl_info->scsi_host);
}
-static unsigned long pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info,
- unsigned long timeout_msecs)
+static void pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
{
- unsigned long remaining_msecs;
-
if (!pqi_ctrl_blocked(ctrl_info))
- return timeout_msecs;
+ return;
atomic_inc(&ctrl_info->num_blocked_threads);
-
- if (timeout_msecs == NO_TIMEOUT) {
- wait_event(ctrl_info->block_requests_wait,
- !pqi_ctrl_blocked(ctrl_info));
- remaining_msecs = timeout_msecs;
- } else {
- unsigned long remaining_jiffies;
-
- remaining_jiffies =
- wait_event_timeout(ctrl_info->block_requests_wait,
- !pqi_ctrl_blocked(ctrl_info),
- msecs_to_jiffies(timeout_msecs));
- remaining_msecs = jiffies_to_msecs(remaining_jiffies);
- }
-
+ wait_event(ctrl_info->block_requests_wait,
+ !pqi_ctrl_blocked(ctrl_info));
atomic_dec(&ctrl_info->num_blocked_threads);
-
- return remaining_msecs;
}
static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info)
@@ -315,34 +347,25 @@ static inline bool pqi_device_offline(struct pqi_scsi_dev *device)
return device->device_offline;
}
-static inline void pqi_device_reset_start(struct pqi_scsi_dev *device)
-{
- device->in_reset = true;
-}
-
-static inline void pqi_device_reset_done(struct pqi_scsi_dev *device)
-{
- device->in_reset = false;
-}
-
-static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device)
+static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info)
{
- return device->in_reset;
+ mutex_lock(&ctrl_info->ofa_mutex);
}
-static inline void pqi_ctrl_ofa_start(struct pqi_ctrl_info *ctrl_info)
+static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info)
{
- ctrl_info->in_ofa = true;
+ mutex_unlock(&ctrl_info->ofa_mutex);
}
-static inline void pqi_ctrl_ofa_done(struct pqi_ctrl_info *ctrl_info)
+static inline void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info)
{
- ctrl_info->in_ofa = false;
+ mutex_lock(&ctrl_info->ofa_mutex);
+ mutex_unlock(&ctrl_info->ofa_mutex);
}
-static inline bool pqi_ctrl_in_ofa(struct pqi_ctrl_info *ctrl_info)
+static inline bool pqi_ofa_in_progress(struct pqi_ctrl_info *ctrl_info)
{
- return ctrl_info->in_ofa;
+ return mutex_is_locked(&ctrl_info->ofa_mutex);
}
static inline void pqi_device_remove_start(struct pqi_scsi_dev *device)
@@ -355,14 +378,20 @@ static inline bool pqi_device_in_remove(struct pqi_scsi_dev *device)
return device->in_remove;
}
-static inline void pqi_ctrl_shutdown_start(struct pqi_ctrl_info *ctrl_info)
+static inline int pqi_event_type_to_event_index(unsigned int event_type)
{
- ctrl_info->in_shutdown = true;
+ int index;
+
+ for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++)
+ if (event_type == pqi_supported_event_types[index])
+ return index;
+
+ return -1;
}
-static inline bool pqi_ctrl_in_shutdown(struct pqi_ctrl_info *ctrl_info)
+static inline bool pqi_is_supported_event(unsigned int event_type)
{
- return ctrl_info->in_shutdown;
+ return pqi_event_type_to_event_index(event_type) != -1;
}
static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *ctrl_info,
@@ -370,8 +399,6 @@ static inline void pqi_schedule_rescan_worker_with_delay(struct pqi_ctrl_info *c
{
if (pqi_ctrl_offline(ctrl_info))
return;
- if (pqi_ctrl_in_ofa(ctrl_info))
- return;
schedule_delayed_work(&ctrl_info->rescan_work, delay);
}
@@ -408,22 +435,15 @@ static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info)
static inline u8 pqi_read_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
{
- if (!ctrl_info->soft_reset_status)
- return 0;
-
return readb(ctrl_info->soft_reset_status);
}
-static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info,
- u8 clear)
+static inline void pqi_clear_soft_reset_status(struct pqi_ctrl_info *ctrl_info)
{
u8 status;
- if (!ctrl_info->soft_reset_status)
- return;
-
status = pqi_read_soft_reset_status(ctrl_info);
- status &= ~clear;
+ status &= ~PQI_SOFT_RESET_ABORT;
writeb(status, ctrl_info->soft_reset_status);
}
@@ -512,6 +532,7 @@ static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
put_unaligned_be32(cdb_length, &cdb[6]);
break;
case SA_FLUSH_CACHE:
+ request->header.driver_flags = PQI_DRIVER_NONBLOCKABLE_REQUEST;
request->data_direction = SOP_WRITE_FLAG;
cdb[0] = BMIC_WRITE;
cdb[6] = BMIC_FLUSH_CACHE;
@@ -606,7 +627,7 @@ static void pqi_free_io_request(struct pqi_io_request *io_request)
static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd,
u8 *scsi3addr, void *buffer, size_t buffer_length, u16 vpd_page,
- struct pqi_raid_error_info *error_info, unsigned long timeout_msecs)
+ struct pqi_raid_error_info *error_info)
{
int rc;
struct pqi_raid_path_request request;
@@ -618,7 +639,7 @@ static int pqi_send_scsi_raid_request(struct pqi_ctrl_info *ctrl_info, u8 cmd,
return rc;
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
- error_info, timeout_msecs);
+ error_info);
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
@@ -631,7 +652,7 @@ static inline int pqi_send_ctrl_raid_request(struct pqi_ctrl_info *ctrl_info,
u8 cmd, void *buffer, size_t buffer_length)
{
return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
- buffer, buffer_length, 0, NULL, NO_TIMEOUT);
+ buffer, buffer_length, 0, NULL);
}
static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info,
@@ -639,7 +660,7 @@ static inline int pqi_send_ctrl_raid_with_error(struct pqi_ctrl_info *ctrl_info,
struct pqi_raid_error_info *error_info)
{
return pqi_send_scsi_raid_request(ctrl_info, cmd, RAID_CTLR_LUNID,
- buffer, buffer_length, 0, error_info, NO_TIMEOUT);
+ buffer, buffer_length, 0, error_info);
}
static inline int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info,
@@ -661,7 +682,7 @@ static inline int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info,
u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length)
{
return pqi_send_scsi_raid_request(ctrl_info, INQUIRY, scsi3addr,
- buffer, buffer_length, vpd_page, NULL, NO_TIMEOUT);
+ buffer, buffer_length, vpd_page, NULL);
}
static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
@@ -683,8 +704,7 @@ static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
request.cdb[2] = (u8)bmic_device_index;
request.cdb[9] = (u8)(bmic_device_index >> 8);
- rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
- 0, NULL, NO_TIMEOUT);
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
@@ -741,7 +761,7 @@ static int pqi_get_advanced_raid_bypass_config(struct pqi_ctrl_info *ctrl_info)
request.cdb[2] = BMIC_SENSE_FEATURE_IO_PAGE;
request.cdb[3] = BMIC_SENSE_FEATURE_IO_PAGE_AIO_SUBPAGE;
- rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL, NO_TIMEOUT);
+ rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0, NULL);
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1, dir);
@@ -794,13 +814,6 @@ static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
int rc;
struct bmic_flush_cache *flush_cache;
- /*
- * Don't bother trying to flush the cache if the controller is
- * locked up.
- */
- if (pqi_ctrl_offline(ctrl_info))
- return -ENXIO;
-
flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL);
if (!flush_cache)
return -ENOMEM;
@@ -979,9 +992,6 @@ static void pqi_update_time_worker(struct work_struct *work)
ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
update_time_work);
- if (pqi_ctrl_offline(ctrl_info))
- return;
-
rc = pqi_write_current_time_to_host_wellness(ctrl_info);
if (rc)
dev_warn(&ctrl_info->pci_dev->dev,
@@ -1271,9 +1281,7 @@ static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
return -ENOMEM;
rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
- device->scsi3addr, raid_map, sizeof(*raid_map),
- 0, NULL, NO_TIMEOUT);
-
+ device->scsi3addr, raid_map, sizeof(*raid_map), 0, NULL);
if (rc)
goto error;
@@ -1288,8 +1296,7 @@ static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
return -ENOMEM;
rc = pqi_send_scsi_raid_request(ctrl_info, CISS_GET_RAID_MAP,
- device->scsi3addr, raid_map, raid_map_size,
- 0, NULL, NO_TIMEOUT);
+ device->scsi3addr, raid_map, raid_map_size, 0, NULL);
if (rc)
goto error;
@@ -1464,6 +1471,9 @@ static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info,
sizeof(device->phys_connector));
device->bay = id_phys->phys_bay_in_box;
+ memcpy(&device->page_83_identifier, &id_phys->page_83_identifier,
+ sizeof(device->page_83_identifier));
+
return 0;
}
@@ -1970,8 +1980,13 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
- if (pqi_ctrl_in_ofa(ctrl_info))
- pqi_ctrl_ofa_done(ctrl_info);
+ if (pqi_ofa_in_progress(ctrl_info)) {
+ list_for_each_entry_safe(device, next, &delete_list, delete_list_entry)
+ if (pqi_is_device_added(device))
+ pqi_device_remove_start(device);
+ pqi_ctrl_unblock_device_reset(ctrl_info);
+ pqi_scsi_unblock_requests(ctrl_info);
+ }
/* Remove all devices that have gone away. */
list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) {
@@ -1993,19 +2008,14 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
* Notify the SCSI ML if the queue depth of any existing device has
* changed.
*/
- list_for_each_entry(device, &ctrl_info->scsi_device_list,
- scsi_device_list_entry) {
- if (device->sdev) {
- if (device->queue_depth !=
- device->advertised_queue_depth) {
- device->advertised_queue_depth = device->queue_depth;
- scsi_change_queue_depth(device->sdev,
- device->advertised_queue_depth);
- }
- if (device->rescan) {
- scsi_rescan_device(&device->sdev->sdev_gendev);
- device->rescan = false;
- }
+ list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) {
+ if (device->sdev && device->queue_depth != device->advertised_queue_depth) {
+ device->advertised_queue_depth = device->queue_depth;
+ scsi_change_queue_depth(device->sdev, device->advertised_queue_depth);
+ }
+ if (device->rescan) {
+ scsi_rescan_device(&device->sdev->sdev_gendev);
+ device->rescan = false;
}
}
@@ -2073,6 +2083,16 @@ static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
return !device->is_physical_device || !pqi_skip_device(device->scsi3addr);
}
+static inline void pqi_set_physical_device_wwid(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device, struct report_phys_lun_extended_entry *phys_lun_ext_entry)
+{
+ if (ctrl_info->unique_wwid_in_report_phys_lun_supported ||
+ pqi_is_device_with_sas_address(device))
+ device->wwid = phys_lun_ext_entry->wwid;
+ else
+ device->wwid = cpu_to_be64(get_unaligned_be64(&device->page_83_identifier));
+}
+
static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
{
int i;
@@ -2238,7 +2258,7 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
pqi_assign_bus_target_lun(device);
if (device->is_physical_device) {
- device->wwid = phys_lun_ext_entry->wwid;
+ pqi_set_physical_device_wwid(ctrl_info, device, phys_lun_ext_entry);
if ((phys_lun_ext_entry->device_flags &
CISS_REPORT_PHYS_DEV_FLAG_AIO_ENABLED) &&
phys_lun_ext_entry->aio_handle) {
@@ -2278,21 +2298,27 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
{
- int rc = 0;
+ int rc;
+ int mutex_acquired;
if (pqi_ctrl_offline(ctrl_info))
return -ENXIO;
- if (!mutex_trylock(&ctrl_info->scan_mutex)) {
+ mutex_acquired = mutex_trylock(&ctrl_info->scan_mutex);
+
+ if (!mutex_acquired) {
+ if (pqi_ctrl_scan_blocked(ctrl_info))
+ return -EBUSY;
pqi_schedule_rescan_worker_delayed(ctrl_info);
- rc = -EINPROGRESS;
- } else {
- rc = pqi_update_scsi_devices(ctrl_info);
- if (rc)
- pqi_schedule_rescan_worker_delayed(ctrl_info);
- mutex_unlock(&ctrl_info->scan_mutex);
+ return -EINPROGRESS;
}
+ rc = pqi_update_scsi_devices(ctrl_info);
+ if (rc && !pqi_ctrl_scan_blocked(ctrl_info))
+ pqi_schedule_rescan_worker_delayed(ctrl_info);
+
+ mutex_unlock(&ctrl_info->scan_mutex);
+
return rc;
}
@@ -2301,8 +2327,6 @@ static void pqi_scan_start(struct Scsi_Host *shost)
struct pqi_ctrl_info *ctrl_info;
ctrl_info = shost_to_hba(shost);
- if (pqi_ctrl_in_ofa(ctrl_info))
- return;
pqi_scan_scsi_devices(ctrl_info);
}
@@ -2319,27 +2343,8 @@ static int pqi_scan_finished(struct Scsi_Host *shost,
return !mutex_is_locked(&ctrl_info->scan_mutex);
}
-static void pqi_wait_until_scan_finished(struct pqi_ctrl_info *ctrl_info)
-{
- mutex_lock(&ctrl_info->scan_mutex);
- mutex_unlock(&ctrl_info->scan_mutex);
-}
-
-static void pqi_wait_until_lun_reset_finished(struct pqi_ctrl_info *ctrl_info)
-{
- mutex_lock(&ctrl_info->lun_reset_mutex);
- mutex_unlock(&ctrl_info->lun_reset_mutex);
-}
-
-static void pqi_wait_until_ofa_finished(struct pqi_ctrl_info *ctrl_info)
-{
- mutex_lock(&ctrl_info->ofa_mutex);
- mutex_unlock(&ctrl_info->ofa_mutex);
-}
-
-static inline void pqi_set_encryption_info(
- struct pqi_encryption_info *encryption_info, struct raid_map *raid_map,
- u64 first_block)
+static inline void pqi_set_encryption_info(struct pqi_encryption_info *encryption_info,
+ struct raid_map *raid_map, u64 first_block)
{
u32 volume_blk_size;
@@ -3251,8 +3256,8 @@ static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
&request.header.iu_length);
request.event_type = event->event_type;
- request.event_id = event->event_id;
- request.additional_event_id = event->additional_event_id;
+ put_unaligned_le16(event->event_id, &request.event_id);
+ put_unaligned_le16(event->additional_event_id, &request.additional_event_id);
pqi_send_event_ack(ctrl_info, &request, sizeof(request));
}
@@ -3263,8 +3268,8 @@ static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status(
struct pqi_ctrl_info *ctrl_info)
{
- unsigned long timeout;
u8 status;
+ unsigned long timeout;
timeout = (PQI_SOFT_RESET_STATUS_TIMEOUT_SECS * PQI_HZ) + jiffies;
@@ -3276,120 +3281,169 @@ static enum pqi_soft_reset_status pqi_poll_for_soft_reset_status(
if (status & PQI_SOFT_RESET_ABORT)
return RESET_ABORT;
+ if (!sis_is_firmware_running(ctrl_info))
+ return RESET_NORESPONSE;
+
if (time_after(jiffies, timeout)) {
- dev_err(&ctrl_info->pci_dev->dev,
+ dev_warn(&ctrl_info->pci_dev->dev,
"timed out waiting for soft reset status\n");
return RESET_TIMEDOUT;
}
- if (!sis_is_firmware_running(ctrl_info))
- return RESET_NORESPONSE;
-
ssleep(PQI_SOFT_RESET_STATUS_POLL_INTERVAL_SECS);
}
}
-static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info,
- enum pqi_soft_reset_status reset_status)
+static void pqi_process_soft_reset(struct pqi_ctrl_info *ctrl_info)
{
int rc;
+ unsigned int delay_secs;
+ enum pqi_soft_reset_status reset_status;
+
+ if (ctrl_info->soft_reset_handshake_supported)
+ reset_status = pqi_poll_for_soft_reset_status(ctrl_info);
+ else
+ reset_status = RESET_INITIATE_FIRMWARE;
+
+ pqi_ofa_free_host_buffer(ctrl_info);
+
+ delay_secs = PQI_POST_RESET_DELAY_SECS;
switch (reset_status) {
- case RESET_INITIATE_DRIVER:
case RESET_TIMEDOUT:
+ delay_secs = PQI_POST_OFA_RESET_DELAY_UPON_TIMEOUT_SECS;
+ fallthrough;
+ case RESET_INITIATE_DRIVER:
dev_info(&ctrl_info->pci_dev->dev,
- "resetting controller %u\n", ctrl_info->ctrl_id);
+ "Online Firmware Activation: resetting controller\n");
sis_soft_reset(ctrl_info);
fallthrough;
case RESET_INITIATE_FIRMWARE:
- rc = pqi_ofa_ctrl_restart(ctrl_info);
- pqi_ofa_free_host_buffer(ctrl_info);
+ ctrl_info->pqi_mode_enabled = false;
+ pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
+ rc = pqi_ofa_ctrl_restart(ctrl_info, delay_secs);
+ pqi_ctrl_ofa_done(ctrl_info);
dev_info(&ctrl_info->pci_dev->dev,
- "Online Firmware Activation for controller %u: %s\n",
- ctrl_info->ctrl_id, rc == 0 ? "SUCCESS" : "FAILED");
+ "Online Firmware Activation: %s\n",
+ rc == 0 ? "SUCCESS" : "FAILED");
break;
case RESET_ABORT:
- pqi_ofa_ctrl_unquiesce(ctrl_info);
dev_info(&ctrl_info->pci_dev->dev,
- "Online Firmware Activation for controller %u: %s\n",
- ctrl_info->ctrl_id, "ABORTED");
+ "Online Firmware Activation ABORTED\n");
+ if (ctrl_info->soft_reset_handshake_supported)
+ pqi_clear_soft_reset_status(ctrl_info);
+ pqi_ctrl_ofa_done(ctrl_info);
+ pqi_ofa_ctrl_unquiesce(ctrl_info);
break;
case RESET_NORESPONSE:
- pqi_ofa_free_host_buffer(ctrl_info);
+ fallthrough;
+ default:
+ dev_err(&ctrl_info->pci_dev->dev,
+ "unexpected Online Firmware Activation reset status: 0x%x\n",
+ reset_status);
+ pqi_ctrl_ofa_done(ctrl_info);
+ pqi_ofa_ctrl_unquiesce(ctrl_info);
pqi_take_ctrl_offline(ctrl_info);
break;
}
}
-static void pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info,
- struct pqi_event *event)
+static void pqi_ofa_memory_alloc_worker(struct work_struct *work)
{
- u16 event_id;
- enum pqi_soft_reset_status status;
+ struct pqi_ctrl_info *ctrl_info;
- event_id = get_unaligned_le16(&event->event_id);
+ ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_memory_alloc_work);
- mutex_lock(&ctrl_info->ofa_mutex);
+ pqi_ctrl_ofa_start(ctrl_info);
+ pqi_ofa_setup_host_buffer(ctrl_info);
+ pqi_ofa_host_memory_update(ctrl_info);
+}
- if (event_id == PQI_EVENT_OFA_QUIESCE) {
- dev_info(&ctrl_info->pci_dev->dev,
- "Received Online Firmware Activation quiesce event for controller %u\n",
- ctrl_info->ctrl_id);
- pqi_ofa_ctrl_quiesce(ctrl_info);
- pqi_acknowledge_event(ctrl_info, event);
- if (ctrl_info->soft_reset_handshake_supported) {
- status = pqi_poll_for_soft_reset_status(ctrl_info);
- pqi_process_soft_reset(ctrl_info, status);
- } else {
- pqi_process_soft_reset(ctrl_info,
- RESET_INITIATE_FIRMWARE);
- }
+static void pqi_ofa_quiesce_worker(struct work_struct *work)
+{
+ struct pqi_ctrl_info *ctrl_info;
+ struct pqi_event *event;
- } else if (event_id == PQI_EVENT_OFA_MEMORY_ALLOCATION) {
- pqi_acknowledge_event(ctrl_info, event);
- pqi_ofa_setup_host_buffer(ctrl_info,
- le32_to_cpu(event->ofa_bytes_requested));
- pqi_ofa_host_memory_update(ctrl_info);
- } else if (event_id == PQI_EVENT_OFA_CANCELED) {
- pqi_ofa_free_host_buffer(ctrl_info);
- pqi_acknowledge_event(ctrl_info, event);
+ ctrl_info = container_of(work, struct pqi_ctrl_info, ofa_quiesce_work);
+
+ event = &ctrl_info->events[pqi_event_type_to_event_index(PQI_EVENT_TYPE_OFA)];
+
+ pqi_ofa_ctrl_quiesce(ctrl_info);
+ pqi_acknowledge_event(ctrl_info, event);
+ pqi_process_soft_reset(ctrl_info);
+}
+
+static bool pqi_ofa_process_event(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_event *event)
+{
+ bool ack_event;
+
+ ack_event = true;
+
+ switch (event->event_id) {
+ case PQI_EVENT_OFA_MEMORY_ALLOCATION:
+ dev_info(&ctrl_info->pci_dev->dev,
+ "received Online Firmware Activation memory allocation request\n");
+ schedule_work(&ctrl_info->ofa_memory_alloc_work);
+ break;
+ case PQI_EVENT_OFA_QUIESCE:
dev_info(&ctrl_info->pci_dev->dev,
- "Online Firmware Activation(%u) cancel reason : %u\n",
- ctrl_info->ctrl_id, event->ofa_cancel_reason);
+ "received Online Firmware Activation quiesce request\n");
+ schedule_work(&ctrl_info->ofa_quiesce_work);
+ ack_event = false;
+ break;
+ case PQI_EVENT_OFA_CANCELED:
+ dev_info(&ctrl_info->pci_dev->dev,
+ "received Online Firmware Activation cancel request: reason: %u\n",
+ ctrl_info->ofa_cancel_reason);
+ pqi_ofa_free_host_buffer(ctrl_info);
+ pqi_ctrl_ofa_done(ctrl_info);
+ break;
+ default:
+ dev_err(&ctrl_info->pci_dev->dev,
+ "received unknown Online Firmware Activation request: event ID: %u\n",
+ event->event_id);
+ break;
}
- mutex_unlock(&ctrl_info->ofa_mutex);
+ return ack_event;
}
static void pqi_event_worker(struct work_struct *work)
{
unsigned int i;
+ bool rescan_needed;
struct pqi_ctrl_info *ctrl_info;
struct pqi_event *event;
+ bool ack_event;
ctrl_info = container_of(work, struct pqi_ctrl_info, event_work);
pqi_ctrl_busy(ctrl_info);
- pqi_wait_if_ctrl_blocked(ctrl_info, NO_TIMEOUT);
+ pqi_wait_if_ctrl_blocked(ctrl_info);
if (pqi_ctrl_offline(ctrl_info))
goto out;
- pqi_schedule_rescan_worker_delayed(ctrl_info);
-
+ rescan_needed = false;
event = ctrl_info->events;
for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
if (event->pending) {
event->pending = false;
if (event->event_type == PQI_EVENT_TYPE_OFA) {
- pqi_ctrl_unbusy(ctrl_info);
- pqi_ofa_process_event(ctrl_info, event);
- return;
+ ack_event = pqi_ofa_process_event(ctrl_info, event);
+ } else {
+ ack_event = true;
+ rescan_needed = true;
}
- pqi_acknowledge_event(ctrl_info, event);
+ if (ack_event)
+ pqi_acknowledge_event(ctrl_info, event);
}
event++;
}
+ if (rescan_needed)
+ pqi_schedule_rescan_worker_delayed(ctrl_info);
+
out:
pqi_ctrl_unbusy(ctrl_info);
}
@@ -3446,37 +3500,18 @@ static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
del_timer_sync(&ctrl_info->heartbeat_timer);
}
-static inline int pqi_event_type_to_event_index(unsigned int event_type)
-{
- int index;
-
- for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++)
- if (event_type == pqi_supported_event_types[index])
- return index;
-
- return -1;
-}
-
-static inline bool pqi_is_supported_event(unsigned int event_type)
-{
- return pqi_event_type_to_event_index(event_type) != -1;
-}
-
-static void pqi_ofa_capture_event_payload(struct pqi_event *event,
- struct pqi_event_response *response)
+static void pqi_ofa_capture_event_payload(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_event *event, struct pqi_event_response *response)
{
- u16 event_id;
-
- event_id = get_unaligned_le16(&event->event_id);
-
- if (event->event_type == PQI_EVENT_TYPE_OFA) {
- if (event_id == PQI_EVENT_OFA_MEMORY_ALLOCATION) {
- event->ofa_bytes_requested =
- response->data.ofa_memory_allocation.bytes_requested;
- } else if (event_id == PQI_EVENT_OFA_CANCELED) {
- event->ofa_cancel_reason =
- response->data.ofa_cancelled.reason;
- }
+ switch (event->event_id) {
+ case PQI_EVENT_OFA_MEMORY_ALLOCATION:
+ ctrl_info->ofa_bytes_requested =
+ get_unaligned_le32(&response->data.ofa_memory_allocation.bytes_requested);
+ break;
+ case PQI_EVENT_OFA_CANCELED:
+ ctrl_info->ofa_cancel_reason =
+ get_unaligned_le16(&response->data.ofa_cancelled.reason);
+ break;
}
}
@@ -3510,17 +3545,17 @@ static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
num_events++;
response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH);
- event_index =
- pqi_event_type_to_event_index(response->event_type);
+ event_index = pqi_event_type_to_event_index(response->event_type);
if (event_index >= 0 && response->request_acknowledge) {
event = &ctrl_info->events[event_index];
event->pending = true;
event->event_type = response->event_type;
- event->event_id = response->event_id;
- event->additional_event_id = response->additional_event_id;
+ event->event_id = get_unaligned_le16(&response->event_id);
+ event->additional_event_id =
+ get_unaligned_le32(&response->additional_event_id);
if (event->event_type == PQI_EVENT_TYPE_OFA)
- pqi_ofa_capture_event_payload(event, response);
+ pqi_ofa_capture_event_payload(ctrl_info, event, response);
}
oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS;
@@ -3537,8 +3572,7 @@ static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
#define PQI_LEGACY_INTX_MASK 0x1
-static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info,
- bool enable_intx)
+static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info, bool enable_intx)
{
u32 intx_mask;
struct pqi_device_registers __iomem *pqi_registers;
@@ -4216,59 +4250,36 @@ static int pqi_process_raid_io_error_synchronous(
return rc;
}
+static inline bool pqi_is_blockable_request(struct pqi_iu_header *request)
+{
+ return (request->driver_flags & PQI_DRIVER_NONBLOCKABLE_REQUEST) == 0;
+}
+
static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
struct pqi_iu_header *request, unsigned int flags,
- struct pqi_raid_error_info *error_info, unsigned long timeout_msecs)
+ struct pqi_raid_error_info *error_info)
{
int rc = 0;
struct pqi_io_request *io_request;
- unsigned long start_jiffies;
- unsigned long msecs_blocked;
size_t iu_length;
DECLARE_COMPLETION_ONSTACK(wait);
- /*
- * Note that specifying PQI_SYNC_FLAGS_INTERRUPTABLE and a timeout value
- * are mutually exclusive.
- */
-
if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) {
if (down_interruptible(&ctrl_info->sync_request_sem))
return -ERESTARTSYS;
} else {
- if (timeout_msecs == NO_TIMEOUT) {
- down(&ctrl_info->sync_request_sem);
- } else {
- start_jiffies = jiffies;
- if (down_timeout(&ctrl_info->sync_request_sem,
- msecs_to_jiffies(timeout_msecs)))
- return -ETIMEDOUT;
- msecs_blocked =
- jiffies_to_msecs(jiffies - start_jiffies);
- if (msecs_blocked >= timeout_msecs) {
- rc = -ETIMEDOUT;
- goto out;
- }
- timeout_msecs -= msecs_blocked;
- }
+ down(&ctrl_info->sync_request_sem);
}
pqi_ctrl_busy(ctrl_info);
- timeout_msecs = pqi_wait_if_ctrl_blocked(ctrl_info, timeout_msecs);
- if (timeout_msecs == 0) {
- pqi_ctrl_unbusy(ctrl_info);
- rc = -ETIMEDOUT;
- goto out;
- }
+ if (pqi_is_blockable_request(request))
+ pqi_wait_if_ctrl_blocked(ctrl_info);
if (pqi_ctrl_offline(ctrl_info)) {
- pqi_ctrl_unbusy(ctrl_info);
rc = -ENXIO;
goto out;
}
- atomic_inc(&ctrl_info->sync_cmds_outstanding);
-
io_request = pqi_alloc_io_request(ctrl_info);
put_unaligned_le16(io_request->index,
@@ -4288,18 +4299,7 @@ static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
pqi_start_io(ctrl_info, &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
io_request);
- pqi_ctrl_unbusy(ctrl_info);
-
- if (timeout_msecs == NO_TIMEOUT) {
- pqi_wait_for_completion_io(ctrl_info, &wait);
- } else {
- if (!wait_for_completion_io_timeout(&wait,
- msecs_to_jiffies(timeout_msecs))) {
- dev_warn(&ctrl_info->pci_dev->dev,
- "command timed out\n");
- rc = -ETIMEDOUT;
- }
- }
+ pqi_wait_for_completion_io(ctrl_info, &wait);
if (error_info) {
if (io_request->error_info)
@@ -4312,8 +4312,8 @@ static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
pqi_free_io_request(io_request);
- atomic_dec(&ctrl_info->sync_cmds_outstanding);
out:
+ pqi_ctrl_unbusy(ctrl_info);
up(&ctrl_info->sync_request_sem);
return rc;
@@ -4350,8 +4350,7 @@ static int pqi_submit_admin_request_synchronous(
rc = pqi_poll_for_admin_response(ctrl_info, response);
if (rc == 0)
- rc = pqi_validate_admin_response(response,
- request->function_code);
+ rc = pqi_validate_admin_response(response, request->function_code);
return rc;
}
@@ -4721,7 +4720,7 @@ static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info,
goto out;
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
- 0, NULL, NO_TIMEOUT);
+ 0, NULL);
pqi_pci_unmap(ctrl_info->pci_dev,
request.data.report_event_configuration.sg_descriptors, 1,
@@ -4757,7 +4756,7 @@ static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info,
goto out;
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
- NULL, NO_TIMEOUT);
+ NULL);
pqi_pci_unmap(ctrl_info->pci_dev,
request.data.report_event_configuration.sg_descriptors, 1,
@@ -5277,12 +5276,6 @@ static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
device, scmd, queue_group);
}
-static inline void pqi_schedule_bypass_retry(struct pqi_ctrl_info *ctrl_info)
-{
- if (!pqi_ctrl_blocked(ctrl_info))
- schedule_work(&ctrl_info->raid_bypass_retry_work);
-}
-
static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
{
struct scsi_cmnd *scmd;
@@ -5299,7 +5292,7 @@ static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
return false;
device = scmd->device->hostdata;
- if (pqi_device_offline(device))
+ if (pqi_device_offline(device) || pqi_device_in_remove(device))
return false;
ctrl_info = shost_to_hba(scmd->device->host);
@@ -5309,155 +5302,26 @@ static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
return true;
}
-static inline void pqi_add_to_raid_bypass_retry_list(
- struct pqi_ctrl_info *ctrl_info,
- struct pqi_io_request *io_request, bool at_head)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags);
- if (at_head)
- list_add(&io_request->request_list_entry,
- &ctrl_info->raid_bypass_retry_list);
- else
- list_add_tail(&io_request->request_list_entry,
- &ctrl_info->raid_bypass_retry_list);
- spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags);
-}
-
-static void pqi_queued_raid_bypass_complete(struct pqi_io_request *io_request,
+static void pqi_aio_io_complete(struct pqi_io_request *io_request,
void *context)
{
struct scsi_cmnd *scmd;
scmd = io_request->scmd;
+ scsi_dma_unmap(scmd);
+ if (io_request->status == -EAGAIN ||
+ pqi_raid_bypass_retry_needed(io_request))
+ set_host_byte(scmd, DID_IMM_RETRY);
pqi_free_io_request(io_request);
pqi_scsi_done(scmd);
}
-static void pqi_queue_raid_bypass_retry(struct pqi_io_request *io_request)
+static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
+ struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
+ struct pqi_queue_group *queue_group)
{
- struct scsi_cmnd *scmd;
- struct pqi_ctrl_info *ctrl_info;
-
- io_request->io_complete_callback = pqi_queued_raid_bypass_complete;
- scmd = io_request->scmd;
- scmd->result = 0;
- ctrl_info = shost_to_hba(scmd->device->host);
-
- pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, false);
- pqi_schedule_bypass_retry(ctrl_info);
-}
-
-static int pqi_retry_raid_bypass(struct pqi_io_request *io_request)
-{
- struct scsi_cmnd *scmd;
- struct pqi_scsi_dev *device;
- struct pqi_ctrl_info *ctrl_info;
- struct pqi_queue_group *queue_group;
-
- scmd = io_request->scmd;
- device = scmd->device->hostdata;
- if (pqi_device_in_reset(device)) {
- pqi_free_io_request(io_request);
- set_host_byte(scmd, DID_RESET);
- pqi_scsi_done(scmd);
- return 0;
- }
-
- ctrl_info = shost_to_hba(scmd->device->host);
- queue_group = io_request->queue_group;
-
- pqi_reinit_io_request(io_request);
-
- return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request,
- device, scmd, queue_group);
-}
-
-static inline struct pqi_io_request *pqi_next_queued_raid_bypass_request(
- struct pqi_ctrl_info *ctrl_info)
-{
- unsigned long flags;
- struct pqi_io_request *io_request;
-
- spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags);
- io_request = list_first_entry_or_null(
- &ctrl_info->raid_bypass_retry_list,
- struct pqi_io_request, request_list_entry);
- if (io_request)
- list_del(&io_request->request_list_entry);
- spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags);
-
- return io_request;
-}
-
-static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info)
-{
- int rc;
- struct pqi_io_request *io_request;
-
- pqi_ctrl_busy(ctrl_info);
-
- while (1) {
- if (pqi_ctrl_blocked(ctrl_info))
- break;
- io_request = pqi_next_queued_raid_bypass_request(ctrl_info);
- if (!io_request)
- break;
- rc = pqi_retry_raid_bypass(io_request);
- if (rc) {
- pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request,
- true);
- pqi_schedule_bypass_retry(ctrl_info);
- break;
- }
- }
-
- pqi_ctrl_unbusy(ctrl_info);
-}
-
-static void pqi_raid_bypass_retry_worker(struct work_struct *work)
-{
- struct pqi_ctrl_info *ctrl_info;
-
- ctrl_info = container_of(work, struct pqi_ctrl_info,
- raid_bypass_retry_work);
- pqi_retry_raid_bypass_requests(ctrl_info);
-}
-
-static void pqi_clear_all_queued_raid_bypass_retries(
- struct pqi_ctrl_info *ctrl_info)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags);
- INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list);
- spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags);
-}
-
-static void pqi_aio_io_complete(struct pqi_io_request *io_request,
- void *context)
-{
- struct scsi_cmnd *scmd;
-
- scmd = io_request->scmd;
- scsi_dma_unmap(scmd);
- if (io_request->status == -EAGAIN)
- set_host_byte(scmd, DID_IMM_RETRY);
- else if (pqi_raid_bypass_retry_needed(io_request)) {
- pqi_queue_raid_bypass_retry(io_request);
- return;
- }
- pqi_free_io_request(io_request);
- pqi_scsi_done(scmd);
-}
-
-static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
- struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
- struct pqi_queue_group *queue_group)
-{
- return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
- scmd->cmnd, scmd->cmd_len, queue_group, NULL, false);
+ return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
+ scmd->cmnd, scmd->cmd_len, queue_group, NULL, false);
}
static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
@@ -5698,6 +5562,14 @@ static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info,
return hw_queue;
}
+static inline bool pqi_is_bypass_eligible_request(struct scsi_cmnd *scmd)
+{
+ if (blk_rq_is_passthrough(scmd->request))
+ return false;
+
+ return scmd->retries == 0;
+}
+
/*
* This function gets called just before we hand the completed SCSI request
* back to the SML.
@@ -5806,7 +5678,6 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm
bool raid_bypassed;
device = scmd->device->hostdata;
- ctrl_info = shost_to_hba(shost);
if (!device) {
set_host_byte(scmd, DID_NO_CONNECT);
@@ -5816,15 +5687,15 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm
atomic_inc(&device->scsi_cmds_outstanding);
+ ctrl_info = shost_to_hba(shost);
+
if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) {
set_host_byte(scmd, DID_NO_CONNECT);
pqi_scsi_done(scmd);
return 0;
}
- pqi_ctrl_busy(ctrl_info);
- if (pqi_ctrl_blocked(ctrl_info) || pqi_device_in_reset(device) ||
- pqi_ctrl_in_ofa(ctrl_info) || pqi_ctrl_in_shutdown(ctrl_info)) {
+ if (pqi_ctrl_blocked(ctrl_info)) {
rc = SCSI_MLQUEUE_HOST_BUSY;
goto out;
}
@@ -5841,13 +5712,12 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm
if (pqi_is_logical_device(device)) {
raid_bypassed = false;
if (device->raid_bypass_enabled &&
- !blk_rq_is_passthrough(scmd->request)) {
- if (!pqi_is_parity_write_stream(ctrl_info, scmd)) {
- rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
- if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) {
- raid_bypassed = true;
- atomic_inc(&device->raid_bypass_cnt);
- }
+ pqi_is_bypass_eligible_request(scmd) &&
+ !pqi_is_parity_write_stream(ctrl_info, scmd)) {
+ rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group);
+ if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) {
+ raid_bypassed = true;
+ atomic_inc(&device->raid_bypass_cnt);
}
}
if (!raid_bypassed)
@@ -5860,7 +5730,6 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm
}
out:
- pqi_ctrl_unbusy(ctrl_info);
if (rc)
atomic_dec(&device->scsi_cmds_outstanding);
@@ -5970,100 +5839,22 @@ static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info,
}
}
-static void pqi_fail_io_queued_for_all_devices(struct pqi_ctrl_info *ctrl_info)
-{
- unsigned int i;
- unsigned int path;
- struct pqi_queue_group *queue_group;
- unsigned long flags;
- struct pqi_io_request *io_request;
- struct pqi_io_request *next;
- struct scsi_cmnd *scmd;
-
- for (i = 0; i < ctrl_info->num_queue_groups; i++) {
- queue_group = &ctrl_info->queue_groups[i];
-
- for (path = 0; path < 2; path++) {
- spin_lock_irqsave(&queue_group->submit_lock[path],
- flags);
-
- list_for_each_entry_safe(io_request, next,
- &queue_group->request_list[path],
- request_list_entry) {
-
- scmd = io_request->scmd;
- if (!scmd)
- continue;
-
- list_del(&io_request->request_list_entry);
- set_host_byte(scmd, DID_RESET);
- pqi_scsi_done(scmd);
- }
-
- spin_unlock_irqrestore(
- &queue_group->submit_lock[path], flags);
- }
- }
-}
-
static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
struct pqi_scsi_dev *device, unsigned long timeout_secs)
{
unsigned long timeout;
- timeout = (timeout_secs * PQI_HZ) + jiffies;
-
- while (atomic_read(&device->scsi_cmds_outstanding)) {
- pqi_check_ctrl_health(ctrl_info);
- if (pqi_ctrl_offline(ctrl_info))
- return -ENXIO;
- if (timeout_secs != NO_TIMEOUT) {
- if (time_after(jiffies, timeout)) {
- dev_err(&ctrl_info->pci_dev->dev,
- "timed out waiting for pending IO\n");
- return -ETIMEDOUT;
- }
- }
- usleep_range(1000, 2000);
- }
-
- return 0;
-}
-
-static int pqi_ctrl_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
- unsigned long timeout_secs)
-{
- bool io_pending;
- unsigned long flags;
- unsigned long timeout;
- struct pqi_scsi_dev *device;
timeout = (timeout_secs * PQI_HZ) + jiffies;
- while (1) {
- io_pending = false;
-
- spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
- list_for_each_entry(device, &ctrl_info->scsi_device_list,
- scsi_device_list_entry) {
- if (atomic_read(&device->scsi_cmds_outstanding)) {
- io_pending = true;
- break;
- }
- }
- spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
- flags);
-
- if (!io_pending)
- break;
+ while (atomic_read(&device->scsi_cmds_outstanding)) {
pqi_check_ctrl_health(ctrl_info);
if (pqi_ctrl_offline(ctrl_info))
return -ENXIO;
-
if (timeout_secs != NO_TIMEOUT) {
if (time_after(jiffies, timeout)) {
dev_err(&ctrl_info->pci_dev->dev,
- "timed out waiting for pending IO\n");
+ "timed out waiting for pending I/O\n");
return -ETIMEDOUT;
}
}
@@ -6073,18 +5864,6 @@ static int pqi_ctrl_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
return 0;
}
-static int pqi_ctrl_wait_for_pending_sync_cmds(struct pqi_ctrl_info *ctrl_info)
-{
- while (atomic_read(&ctrl_info->sync_cmds_outstanding)) {
- pqi_check_ctrl_health(ctrl_info);
- if (pqi_ctrl_offline(ctrl_info))
- return -ENXIO;
- usleep_range(1000, 2000);
- }
-
- return 0;
-}
-
static void pqi_lun_reset_complete(struct pqi_io_request *io_request,
void *context)
{
@@ -6156,13 +5935,11 @@ static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info,
return rc;
}
-/* Performs a reset at the LUN level. */
-
#define PQI_LUN_RESET_RETRIES 3
#define PQI_LUN_RESET_RETRY_INTERVAL_MSECS 10000
#define PQI_LUN_RESET_PENDING_IO_TIMEOUT_SECS 120
-static int _pqi_device_reset(struct pqi_ctrl_info *ctrl_info,
+static int pqi_lun_reset_with_retries(struct pqi_ctrl_info *ctrl_info,
struct pqi_scsi_dev *device)
{
int rc;
@@ -6188,23 +5965,15 @@ static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info,
{
int rc;
- mutex_lock(&ctrl_info->lun_reset_mutex);
-
pqi_ctrl_block_requests(ctrl_info);
pqi_ctrl_wait_until_quiesced(ctrl_info);
pqi_fail_io_queued_for_device(ctrl_info, device);
rc = pqi_wait_until_inbound_queues_empty(ctrl_info);
- pqi_device_reset_start(device);
- pqi_ctrl_unblock_requests(ctrl_info);
-
if (rc)
rc = FAILED;
else
- rc = _pqi_device_reset(ctrl_info, device);
-
- pqi_device_reset_done(device);
-
- mutex_unlock(&ctrl_info->lun_reset_mutex);
+ rc = pqi_lun_reset_with_retries(ctrl_info, device);
+ pqi_ctrl_unblock_requests(ctrl_info);
return rc;
}
@@ -6220,29 +5989,25 @@ static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
ctrl_info = shost_to_hba(shost);
device = scmd->device->hostdata;
+ mutex_lock(&ctrl_info->lun_reset_mutex);
+
dev_err(&ctrl_info->pci_dev->dev,
"resetting scsi %d:%d:%d:%d\n",
shost->host_no, device->bus, device->target, device->lun);
pqi_check_ctrl_health(ctrl_info);
- if (pqi_ctrl_offline(ctrl_info) ||
- pqi_device_reset_blocked(ctrl_info)) {
+ if (pqi_ctrl_offline(ctrl_info))
rc = FAILED;
- goto out;
- }
-
- pqi_wait_until_ofa_finished(ctrl_info);
-
- atomic_inc(&ctrl_info->sync_cmds_outstanding);
- rc = pqi_device_reset(ctrl_info, device);
- atomic_dec(&ctrl_info->sync_cmds_outstanding);
+ else
+ rc = pqi_device_reset(ctrl_info, device);
-out:
dev_err(&ctrl_info->pci_dev->dev,
"reset of scsi %d:%d:%d:%d: %s\n",
shost->host_no, device->bus, device->target, device->lun,
rc == SUCCESS ? "SUCCESS" : "FAILED");
+ mutex_unlock(&ctrl_info->lun_reset_mutex);
+
return rc;
}
@@ -6544,7 +6309,7 @@ static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
put_unaligned_le32(iocommand.Request.Timeout, &request.timeout);
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
- PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info, NO_TIMEOUT);
+ PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info);
if (iocommand.buf_size > 0)
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
@@ -6596,9 +6361,6 @@ static int pqi_ioctl(struct scsi_device *sdev, unsigned int cmd,
ctrl_info = shost_to_hba(sdev->host);
- if (pqi_ctrl_in_ofa(ctrl_info) || pqi_ctrl_in_shutdown(ctrl_info))
- return -EBUSY;
-
switch (cmd) {
case CCISS_DEREGDISK:
case CCISS_REGNEWDISK:
@@ -7145,9 +6907,7 @@ static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info));
if (!shost) {
- dev_err(&ctrl_info->pci_dev->dev,
- "scsi_host_alloc failed for controller %u\n",
- ctrl_info->ctrl_id);
+ dev_err(&ctrl_info->pci_dev->dev, "scsi_host_alloc failed\n");
return -ENOMEM;
}
@@ -7405,7 +7165,7 @@ static int pqi_config_table_update(struct pqi_ctrl_info *ctrl_info,
&request.data.config_table_update.last_section);
return pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
- 0, NULL, NO_TIMEOUT);
+ 0, NULL);
}
static int pqi_enable_firmware_features(struct pqi_ctrl_info *ctrl_info,
@@ -7483,7 +7243,8 @@ static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info,
break;
case PQI_FIRMWARE_FEATURE_SOFT_RESET_HANDSHAKE:
ctrl_info->soft_reset_handshake_supported =
- firmware_feature->enabled;
+ firmware_feature->enabled &&
+ ctrl_info->soft_reset_status;
break;
case PQI_FIRMWARE_FEATURE_RAID_IU_TIMEOUT:
ctrl_info->raid_iu_timeout_supported = firmware_feature->enabled;
@@ -7491,6 +7252,10 @@ static void pqi_ctrl_update_feature_flags(struct pqi_ctrl_info *ctrl_info,
case PQI_FIRMWARE_FEATURE_TMF_IU_TIMEOUT:
ctrl_info->tmf_iu_timeout_supported = firmware_feature->enabled;
break;
+ case PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN:
+ ctrl_info->unique_wwid_in_report_phys_lun_supported =
+ firmware_feature->enabled;
+ break;
}
pqi_firmware_feature_status(ctrl_info, firmware_feature);
@@ -7581,6 +7346,11 @@ static struct pqi_firmware_feature pqi_firmware_features[] = {
.feature_bit = PQI_FIRMWARE_FEATURE_RAID_BYPASS_ON_ENCRYPTED_NVME,
.feature_status = pqi_firmware_feature_status,
},
+ {
+ .feature_name = "Unique WWID in Report Physical LUN",
+ .feature_bit = PQI_FIRMWARE_FEATURE_UNIQUE_WWID_IN_REPORT_PHYS_LUN,
+ .feature_status = pqi_ctrl_update_feature_flags,
+ },
};
static void pqi_process_firmware_features(
@@ -7665,14 +7435,34 @@ static void pqi_process_firmware_features_section(
mutex_unlock(&pqi_firmware_features_mutex);
}
+/*
+ * Reset all controller settings that can be initialized during the processing
+ * of the PQI Configuration Table.
+ */
+
+static void pqi_ctrl_reset_config(struct pqi_ctrl_info *ctrl_info)
+{
+ ctrl_info->heartbeat_counter = NULL;
+ ctrl_info->soft_reset_status = NULL;
+ ctrl_info->soft_reset_handshake_supported = false;
+ ctrl_info->enable_r1_writes = false;
+ ctrl_info->enable_r5_writes = false;
+ ctrl_info->enable_r6_writes = false;
+ ctrl_info->raid_iu_timeout_supported = false;
+ ctrl_info->tmf_iu_timeout_supported = false;
+ ctrl_info->unique_wwid_in_report_phys_lun_supported = false;
+}
+
static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
{
u32 table_length;
u32 section_offset;
+ bool firmware_feature_section_present;
void __iomem *table_iomem_addr;
struct pqi_config_table *config_table;
struct pqi_config_table_section_header *section;
struct pqi_config_table_section_info section_info;
+ struct pqi_config_table_section_info feature_section_info;
table_length = ctrl_info->config_table_length;
if (table_length == 0)
@@ -7692,6 +7482,7 @@ static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
table_iomem_addr = ctrl_info->iomem_base + ctrl_info->config_table_offset;
memcpy_fromio(config_table, table_iomem_addr, table_length);
+ firmware_feature_section_present = false;
section_info.ctrl_info = ctrl_info;
section_offset = get_unaligned_le32(&config_table->first_section_offset);
@@ -7704,7 +7495,8 @@ static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
switch (get_unaligned_le16(§ion->section_id)) {
case PQI_CONFIG_TABLE_SECTION_FIRMWARE_FEATURES:
- pqi_process_firmware_features_section(§ion_info);
+ firmware_feature_section_present = true;
+ feature_section_info = section_info;
break;
case PQI_CONFIG_TABLE_SECTION_HEARTBEAT:
if (pqi_disable_heartbeat)
@@ -7722,13 +7514,21 @@ static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
table_iomem_addr +
section_offset +
offsetof(struct pqi_config_table_soft_reset,
- soft_reset_status);
+ soft_reset_status);
break;
}
section_offset = get_unaligned_le16(§ion->next_section_offset);
}
+ /*
+ * We process the firmware feature section after all other sections
+ * have been processed so that the feature bit callbacks can take
+ * into account the settings configured by other sections.
+ */
+ if (firmware_feature_section_present)
+ pqi_process_firmware_features_section(&feature_section_info);
+
kfree(config_table);
return 0;
@@ -7776,8 +7576,6 @@ static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info)
return pqi_revert_to_sis_mode(ctrl_info);
}
-#define PQI_POST_RESET_DELAY_B4_MSGU_READY 5000
-
static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
{
int rc;
@@ -7785,7 +7583,7 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
if (reset_devices) {
sis_soft_reset(ctrl_info);
- msleep(PQI_POST_RESET_DELAY_B4_MSGU_READY);
+ msleep(PQI_POST_RESET_DELAY_SECS * PQI_HZ);
} else {
rc = pqi_force_sis_mode(ctrl_info);
if (rc)
@@ -8095,6 +7893,8 @@ static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info)
ctrl_info->controller_online = true;
pqi_ctrl_unblock_requests(ctrl_info);
+ pqi_ctrl_reset_config(ctrl_info);
+
rc = pqi_process_config_table(ctrl_info);
if (rc)
return rc;
@@ -8140,7 +7940,8 @@ static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info)
return rc;
}
- pqi_schedule_update_time_worker(ctrl_info);
+ if (pqi_ofa_in_progress(ctrl_info))
+ pqi_ctrl_unblock_scan(ctrl_info);
pqi_scan_scsi_devices(ctrl_info);
@@ -8253,7 +8054,6 @@ static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
INIT_WORK(&ctrl_info->event_work, pqi_event_worker);
atomic_set(&ctrl_info->num_interrupts, 0);
- atomic_set(&ctrl_info->sync_cmds_outstanding, 0);
INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
@@ -8261,15 +8061,13 @@ static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0);
INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker);
+ INIT_WORK(&ctrl_info->ofa_memory_alloc_work, pqi_ofa_memory_alloc_worker);
+ INIT_WORK(&ctrl_info->ofa_quiesce_work, pqi_ofa_quiesce_worker);
+
sema_init(&ctrl_info->sync_request_sem,
PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS);
init_waitqueue_head(&ctrl_info->block_requests_wait);
- INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list);
- spin_lock_init(&ctrl_info->raid_bypass_retry_list_lock);
- INIT_WORK(&ctrl_info->raid_bypass_retry_work,
- pqi_raid_bypass_retry_worker);
-
ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1;
ctrl_info->irq_mode = IRQ_MODE_NONE;
ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS;
@@ -8334,81 +8132,57 @@ static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info)
static void pqi_ofa_ctrl_quiesce(struct pqi_ctrl_info *ctrl_info)
{
- pqi_cancel_update_time_worker(ctrl_info);
- pqi_cancel_rescan_worker(ctrl_info);
- pqi_wait_until_lun_reset_finished(ctrl_info);
- pqi_wait_until_scan_finished(ctrl_info);
- pqi_ctrl_ofa_start(ctrl_info);
+ pqi_ctrl_block_scan(ctrl_info);
+ pqi_scsi_block_requests(ctrl_info);
+ pqi_ctrl_block_device_reset(ctrl_info);
pqi_ctrl_block_requests(ctrl_info);
pqi_ctrl_wait_until_quiesced(ctrl_info);
- pqi_ctrl_wait_for_pending_io(ctrl_info, PQI_PENDING_IO_TIMEOUT_SECS);
- pqi_fail_io_queued_for_all_devices(ctrl_info);
- pqi_wait_until_inbound_queues_empty(ctrl_info);
pqi_stop_heartbeat_timer(ctrl_info);
- ctrl_info->pqi_mode_enabled = false;
- pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
}
static void pqi_ofa_ctrl_unquiesce(struct pqi_ctrl_info *ctrl_info)
{
- pqi_ofa_free_host_buffer(ctrl_info);
- ctrl_info->pqi_mode_enabled = true;
- pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
- ctrl_info->controller_online = true;
- pqi_ctrl_unblock_requests(ctrl_info);
pqi_start_heartbeat_timer(ctrl_info);
- pqi_schedule_update_time_worker(ctrl_info);
- pqi_clear_soft_reset_status(ctrl_info,
- PQI_SOFT_RESET_ABORT);
- pqi_scan_scsi_devices(ctrl_info);
+ pqi_ctrl_unblock_requests(ctrl_info);
+ pqi_ctrl_unblock_device_reset(ctrl_info);
+ pqi_scsi_unblock_requests(ctrl_info);
+ pqi_ctrl_unblock_scan(ctrl_info);
}
-static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info,
- u32 total_size, u32 chunk_size)
+static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info, u32 total_size, u32 chunk_size)
{
- u32 sg_count;
- u32 size;
int i;
- struct pqi_sg_descriptor *mem_descriptor = NULL;
+ u32 sg_count;
struct device *dev;
struct pqi_ofa_memory *ofap;
-
- dev = &ctrl_info->pci_dev->dev;
-
- sg_count = (total_size + chunk_size - 1);
- sg_count /= chunk_size;
+ struct pqi_sg_descriptor *mem_descriptor;
+ dma_addr_t dma_handle;
ofap = ctrl_info->pqi_ofa_mem_virt_addr;
- if (sg_count*chunk_size < total_size)
+ sg_count = DIV_ROUND_UP(total_size, chunk_size);
+ if (sg_count == 0 || sg_count > PQI_OFA_MAX_SG_DESCRIPTORS)
goto out;
- ctrl_info->pqi_ofa_chunk_virt_addr =
- kcalloc(sg_count, sizeof(void *), GFP_KERNEL);
+ ctrl_info->pqi_ofa_chunk_virt_addr = kmalloc_array(sg_count, sizeof(void *), GFP_KERNEL);
if (!ctrl_info->pqi_ofa_chunk_virt_addr)
goto out;
- for (size = 0, i = 0; size < total_size; size += chunk_size, i++) {
- dma_addr_t dma_handle;
+ dev = &ctrl_info->pci_dev->dev;
+ for (i = 0; i < sg_count; i++) {
ctrl_info->pqi_ofa_chunk_virt_addr[i] =
- dma_alloc_coherent(dev, chunk_size, &dma_handle,
- GFP_KERNEL);
-
+ dma_alloc_coherent(dev, chunk_size, &dma_handle, GFP_KERNEL);
if (!ctrl_info->pqi_ofa_chunk_virt_addr[i])
- break;
-
+ goto out_free_chunks;
mem_descriptor = &ofap->sg_descriptor[i];
put_unaligned_le64((u64)dma_handle, &mem_descriptor->address);
put_unaligned_le32(chunk_size, &mem_descriptor->length);
}
- if (!size || size < total_size)
- goto out_free_chunks;
-
put_unaligned_le32(CISS_SG_LAST, &mem_descriptor->flags);
put_unaligned_le16(sg_count, &ofap->num_memory_descriptors);
- put_unaligned_le32(size, &ofap->bytes_allocated);
+ put_unaligned_le32(sg_count * chunk_size, &ofap->bytes_allocated);
return 0;
@@ -8416,82 +8190,87 @@ static int pqi_ofa_alloc_mem(struct pqi_ctrl_info *ctrl_info,
while (--i >= 0) {
mem_descriptor = &ofap->sg_descriptor[i];
dma_free_coherent(dev, chunk_size,
- ctrl_info->pqi_ofa_chunk_virt_addr[i],
- get_unaligned_le64(&mem_descriptor->address));
+ ctrl_info->pqi_ofa_chunk_virt_addr[i],
+ get_unaligned_le64(&mem_descriptor->address));
}
kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
out:
- put_unaligned_le32 (0, &ofap->bytes_allocated);
return -ENOMEM;
}
static int pqi_ofa_alloc_host_buffer(struct pqi_ctrl_info *ctrl_info)
{
u32 total_size;
+ u32 chunk_size;
u32 min_chunk_size;
- u32 chunk_sz;
- total_size = le32_to_cpu(
- ctrl_info->pqi_ofa_mem_virt_addr->bytes_allocated);
- min_chunk_size = total_size / PQI_OFA_MAX_SG_DESCRIPTORS;
+ if (ctrl_info->ofa_bytes_requested == 0)
+ return 0;
- for (chunk_sz = total_size; chunk_sz >= min_chunk_size; chunk_sz /= 2)
- if (!pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_sz))
+ total_size = PAGE_ALIGN(ctrl_info->ofa_bytes_requested);
+ min_chunk_size = DIV_ROUND_UP(total_size, PQI_OFA_MAX_SG_DESCRIPTORS);
+ min_chunk_size = PAGE_ALIGN(min_chunk_size);
+
+ for (chunk_size = total_size; chunk_size >= min_chunk_size;) {
+ if (pqi_ofa_alloc_mem(ctrl_info, total_size, chunk_size) == 0)
return 0;
+ chunk_size /= 2;
+ chunk_size = PAGE_ALIGN(chunk_size);
+ }
return -ENOMEM;
}
-static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info,
- u32 bytes_requested)
+static void pqi_ofa_setup_host_buffer(struct pqi_ctrl_info *ctrl_info)
{
- struct pqi_ofa_memory *pqi_ofa_memory;
struct device *dev;
+ struct pqi_ofa_memory *ofap;
dev = &ctrl_info->pci_dev->dev;
- pqi_ofa_memory = dma_alloc_coherent(dev,
- PQI_OFA_MEMORY_DESCRIPTOR_LENGTH,
- &ctrl_info->pqi_ofa_mem_dma_handle,
- GFP_KERNEL);
- if (!pqi_ofa_memory)
+ ofap = dma_alloc_coherent(dev, sizeof(*ofap),
+ &ctrl_info->pqi_ofa_mem_dma_handle, GFP_KERNEL);
+ if (!ofap)
return;
- put_unaligned_le16(PQI_OFA_VERSION, &pqi_ofa_memory->version);
- memcpy(&pqi_ofa_memory->signature, PQI_OFA_SIGNATURE,
- sizeof(pqi_ofa_memory->signature));
- pqi_ofa_memory->bytes_allocated = cpu_to_le32(bytes_requested);
-
- ctrl_info->pqi_ofa_mem_virt_addr = pqi_ofa_memory;
+ ctrl_info->pqi_ofa_mem_virt_addr = ofap;
if (pqi_ofa_alloc_host_buffer(ctrl_info) < 0) {
- dev_err(dev, "Failed to allocate host buffer of size = %u",
- bytes_requested);
+ dev_err(dev,
+ "failed to allocate host buffer for Online Firmware Activation\n");
+ dma_free_coherent(dev, sizeof(*ofap), ofap, ctrl_info->pqi_ofa_mem_dma_handle);
+ ctrl_info->pqi_ofa_mem_virt_addr = NULL;
+ return;
}
- return;
+ put_unaligned_le16(PQI_OFA_VERSION, &ofap->version);
+ memcpy(&ofap->signature, PQI_OFA_SIGNATURE, sizeof(ofap->signature));
}
static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info)
{
- int i;
- struct pqi_sg_descriptor *mem_descriptor;
+ unsigned int i;
+ struct device *dev;
struct pqi_ofa_memory *ofap;
+ struct pqi_sg_descriptor *mem_descriptor;
+ unsigned int num_memory_descriptors;
ofap = ctrl_info->pqi_ofa_mem_virt_addr;
-
if (!ofap)
return;
- if (!ofap->bytes_allocated)
+ dev = &ctrl_info->pci_dev->dev;
+
+ if (get_unaligned_le32(&ofap->bytes_allocated) == 0)
goto out;
mem_descriptor = ofap->sg_descriptor;
+ num_memory_descriptors =
+ get_unaligned_le16(&ofap->num_memory_descriptors);
- for (i = 0; i < get_unaligned_le16(&ofap->num_memory_descriptors);
- i++) {
- dma_free_coherent(&ctrl_info->pci_dev->dev,
+ for (i = 0; i < num_memory_descriptors; i++) {
+ dma_free_coherent(dev,
get_unaligned_le32(&mem_descriptor[i].length),
ctrl_info->pqi_ofa_chunk_virt_addr[i],
get_unaligned_le64(&mem_descriptor[i].address));
@@ -8499,47 +8278,46 @@ static void pqi_ofa_free_host_buffer(struct pqi_ctrl_info *ctrl_info)
kfree(ctrl_info->pqi_ofa_chunk_virt_addr);
out:
- dma_free_coherent(&ctrl_info->pci_dev->dev,
- PQI_OFA_MEMORY_DESCRIPTOR_LENGTH, ofap,
- ctrl_info->pqi_ofa_mem_dma_handle);
+ dma_free_coherent(dev, sizeof(*ofap), ofap,
+ ctrl_info->pqi_ofa_mem_dma_handle);
ctrl_info->pqi_ofa_mem_virt_addr = NULL;
}
static int pqi_ofa_host_memory_update(struct pqi_ctrl_info *ctrl_info)
{
+ u32 buffer_length;
struct pqi_vendor_general_request request;
- size_t size;
struct pqi_ofa_memory *ofap;
memset(&request, 0, sizeof(request));
- ofap = ctrl_info->pqi_ofa_mem_virt_addr;
-
request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
&request.header.iu_length);
put_unaligned_le16(PQI_VENDOR_GENERAL_HOST_MEMORY_UPDATE,
&request.function_code);
+ ofap = ctrl_info->pqi_ofa_mem_virt_addr;
+
if (ofap) {
- size = offsetof(struct pqi_ofa_memory, sg_descriptor) +
+ buffer_length = offsetof(struct pqi_ofa_memory, sg_descriptor) +
get_unaligned_le16(&ofap->num_memory_descriptors) *
sizeof(struct pqi_sg_descriptor);
put_unaligned_le64((u64)ctrl_info->pqi_ofa_mem_dma_handle,
&request.data.ofa_memory_allocation.buffer_address);
- put_unaligned_le32(size,
+ put_unaligned_le32(buffer_length,
&request.data.ofa_memory_allocation.buffer_length);
-
}
return pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
- 0, NULL, NO_TIMEOUT);
+ 0, NULL);
}
-static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info)
+static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int delay_secs)
{
- msleep(PQI_POST_RESET_DELAY_B4_MSGU_READY);
+ ssleep(delay_secs);
+
return pqi_ctrl_init_resume(ctrl_info);
}
@@ -8597,7 +8375,6 @@ static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info)
pqi_cancel_update_time_worker(ctrl_info);
pqi_ctrl_wait_until_quiesced(ctrl_info);
pqi_fail_all_outstanding_requests(ctrl_info);
- pqi_clear_all_queued_raid_bypass_retries(ctrl_info);
pqi_ctrl_unblock_requests(ctrl_info);
}
@@ -8730,24 +8507,12 @@ static void pqi_shutdown(struct pci_dev *pci_dev)
return;
}
- pqi_disable_events(ctrl_info);
pqi_wait_until_ofa_finished(ctrl_info);
- pqi_cancel_update_time_worker(ctrl_info);
- pqi_cancel_rescan_worker(ctrl_info);
- pqi_cancel_event_worker(ctrl_info);
-
- pqi_ctrl_shutdown_start(ctrl_info);
- pqi_ctrl_wait_until_quiesced(ctrl_info);
-
- rc = pqi_ctrl_wait_for_pending_io(ctrl_info, NO_TIMEOUT);
- if (rc) {
- dev_err(&pci_dev->dev,
- "wait for pending I/O failed\n");
- return;
- }
+ pqi_scsi_block_requests(ctrl_info);
pqi_ctrl_block_device_reset(ctrl_info);
- pqi_wait_until_lun_reset_finished(ctrl_info);
+ pqi_ctrl_block_requests(ctrl_info);
+ pqi_ctrl_wait_until_quiesced(ctrl_info);
/*
* Write all data in the controller's battery-backed cache to
@@ -8758,15 +8523,6 @@ static void pqi_shutdown(struct pci_dev *pci_dev)
dev_err(&pci_dev->dev,
"unable to flush controller cache\n");
- pqi_ctrl_block_requests(ctrl_info);
-
- rc = pqi_ctrl_wait_for_pending_sync_cmds(ctrl_info);
- if (rc) {
- dev_err(&pci_dev->dev,
- "wait for pending sync cmds failed\n");
- return;
- }
-
pqi_crash_if_pending_command(ctrl_info);
pqi_reset(ctrl_info);
}
@@ -8801,19 +8557,18 @@ static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t stat
ctrl_info = pci_get_drvdata(pci_dev);
- pqi_disable_events(ctrl_info);
- pqi_cancel_update_time_worker(ctrl_info);
- pqi_cancel_rescan_worker(ctrl_info);
- pqi_wait_until_scan_finished(ctrl_info);
- pqi_wait_until_lun_reset_finished(ctrl_info);
pqi_wait_until_ofa_finished(ctrl_info);
- pqi_flush_cache(ctrl_info, SUSPEND);
+
+ pqi_ctrl_block_scan(ctrl_info);
+ pqi_scsi_block_requests(ctrl_info);
+ pqi_ctrl_block_device_reset(ctrl_info);
pqi_ctrl_block_requests(ctrl_info);
pqi_ctrl_wait_until_quiesced(ctrl_info);
- pqi_wait_until_inbound_queues_empty(ctrl_info);
- pqi_ctrl_wait_for_pending_io(ctrl_info, NO_TIMEOUT);
+ pqi_flush_cache(ctrl_info, SUSPEND);
pqi_stop_heartbeat_timer(ctrl_info);
+ pqi_crash_if_pending_command(ctrl_info);
+
if (state.event == PM_EVENT_FREEZE)
return 0;
@@ -8846,8 +8601,10 @@ static __maybe_unused int pqi_resume(struct pci_dev *pci_dev)
pci_dev->irq, rc);
return rc;
}
- pqi_start_heartbeat_timer(ctrl_info);
+ pqi_ctrl_unblock_device_reset(ctrl_info);
pqi_ctrl_unblock_requests(ctrl_info);
+ pqi_scsi_unblock_requests(ctrl_info);
+ pqi_ctrl_unblock_scan(ctrl_info);
return 0;
}
@@ -9288,7 +9045,7 @@ static void __attribute__((unused)) verify_structures(void)
BUILD_BUG_ON(offsetof(struct pqi_iu_header,
response_queue_id) != 0x4);
BUILD_BUG_ON(offsetof(struct pqi_iu_header,
- work_area) != 0x6);
+ driver_flags) != 0x6);
BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8);
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
@@ -9386,7 +9143,7 @@ static void __attribute__((unused)) verify_structures(void)
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
header.iu_length) != 2);
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
- header.work_area) != 6);
+ header.driver_flags) != 6);
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
request_id) != 8);
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
@@ -9442,7 +9199,7 @@ static void __attribute__((unused)) verify_structures(void)
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
header.iu_length) != 2);
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
- header.work_area) != 6);
+ header.driver_flags) != 6);
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
request_id) != 8);
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
@@ -9466,7 +9223,7 @@ static void __attribute__((unused)) verify_structures(void)
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
header.response_queue_id) != 4);
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
- header.work_area) != 6);
+ header.driver_flags) != 6);
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
request_id) != 8);
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
@@ -9495,7 +9252,7 @@ static void __attribute__((unused)) verify_structures(void)
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
header.response_queue_id) != 4);
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
- header.work_area) != 6);
+ header.driver_flags) != 6);
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
request_id) != 8);
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
