diff options
| -rw-r--r-- | drivers/scsi/hpsa.c | 39 | ||||
| -rw-r--r-- | drivers/scsi/hpsa.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/hpsa_cmd.h | 1 |
3 files changed, 37 insertions, 5 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 0f0aac9..796482b 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -569,12 +569,42 @@ static void set_performant_mode(struct ctlr_info *h, struct CommandList *c) } } +static int is_firmware_flash_cmd(u8 *cdb) +{ + return cdb[0] == BMIC_WRITE && cdb[6] == BMIC_FLASH_FIRMWARE; +} + +/* + * During firmware flash, the heartbeat register may not update as frequently + * as it should. So we dial down lockup detection during firmware flash. and + * dial it back up when firmware flash completes. + */ +#define HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH (240 * HZ) +#define HEARTBEAT_SAMPLE_INTERVAL (30 * HZ) +static void dial_down_lockup_detection_during_fw_flash(struct ctlr_info *h, + struct CommandList *c) +{ + if (!is_firmware_flash_cmd(c->Request.CDB)) + return; + atomic_inc(&h->firmware_flash_in_progress); + h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL_DURING_FLASH; +} + +static void dial_up_lockup_detection_on_fw_flash_complete(struct ctlr_info *h, + struct CommandList *c) +{ + if (is_firmware_flash_cmd(c->Request.CDB) && + atomic_dec_and_test(&h->firmware_flash_in_progress)) + h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; +} + static void enqueue_cmd_and_start_io(struct ctlr_info *h, struct CommandList *c) { unsigned long flags; set_performant_mode(h, c); + dial_down_lockup_detection_during_fw_flash(h, c); spin_lock_irqsave(&h->lock, flags); addQ(&h->reqQ, c); h->Qdepth++; @@ -3385,6 +3415,7 @@ static inline void finish_cmd(struct CommandList *c) spin_lock_irqsave(&c->h->lock, flags); removeQ(c); spin_unlock_irqrestore(&c->h->lock, flags); + dial_up_lockup_detection_on_fw_flash_complete(c->h, c); if (likely(c->cmd_type == CMD_SCSI)) complete_scsi_command(c); else if (c->cmd_type == CMD_IOCTL_PEND) @@ -4562,9 +4593,6 @@ static void controller_lockup_detected(struct ctlr_info *h) spin_unlock_irqrestore(&h->lock, flags); } -#define HEARTBEAT_SAMPLE_INTERVAL (10 * HZ) -#define HEARTBEAT_CHECK_MINIMUM_INTERVAL (HEARTBEAT_SAMPLE_INTERVAL / 2) - static void detect_controller_lockup(struct ctlr_info *h) { u64 now; @@ -4575,7 +4603,7 @@ static void detect_controller_lockup(struct ctlr_info *h) now = get_jiffies_64(); /* If we've received an interrupt recently, we're ok. */ if (time_after64(h->last_intr_timestamp + - (HEARTBEAT_CHECK_MINIMUM_INTERVAL), now)) + (h->heartbeat_sample_interval), now)) return; /* @@ -4584,7 +4612,7 @@ static void detect_controller_lockup(struct ctlr_info *h) * otherwise don't care about signals in this thread. */ if (time_after64(h->last_heartbeat_timestamp + - (HEARTBEAT_CHECK_MINIMUM_INTERVAL), now)) + (h->heartbeat_sample_interval), now)) return; /* If heartbeat has not changed since we last looked, we're not ok. */ @@ -4626,6 +4654,7 @@ static void add_ctlr_to_lockup_detector_list(struct ctlr_info *h) { unsigned long flags; + h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL; spin_lock_irqsave(&lockup_detector_lock, flags); list_add_tail(&h->lockup_list, &hpsa_ctlr_list); spin_unlock_irqrestore(&lockup_detector_lock, flags); diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index fb51ef7..9816479 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -129,6 +129,8 @@ struct ctlr_info { u64 last_intr_timestamp; u32 last_heartbeat; u64 last_heartbeat_timestamp; + u32 heartbeat_sample_interval; + atomic_t firmware_flash_in_progress; u32 lockup_detected; struct list_head lockup_list; /* Address of h->q[x] is passed to intr handler to know which queue */ diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index 43f1631..a894f2e 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -186,6 +186,7 @@ struct SenseSubsystem_info { #define BMIC_WRITE 0x27 #define BMIC_CACHE_FLUSH 0xc2 #define HPSA_CACHE_FLUSH 0x01 /* C2 was already being used by HPSA */ +#define BMIC_FLASH_FIRMWARE 0xF7 /* Command List Structure */ union SCSI3Addr { |
