From: Sumit Saxena Date: Thu, 28 Jan 2016 15:34:34 +0000 (+0530) Subject: megaraid_sas: Introduce module parameter for SCSI command timeout X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=e3d178ca773ff997c6c94989d0b14a2c0eae761c;p=openwrt%2Fstaging%2Fblogic.git megaraid_sas: Introduce module parameter for SCSI command timeout This patch will introduce module-parameter for SCSI command timeout value and fix setting of resetwaittime beyond a value. Signed-off-by: Kashyap Desai Signed-off-by: Sumit Saxena Reviewed-by: Tomas Henzl Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index d2ea97769c76..54922e5f4faa 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -83,7 +83,7 @@ module_param(throttlequeuedepth, int, S_IRUGO); MODULE_PARM_DESC(throttlequeuedepth, "Adapter queue depth when throttled due to I/O timeout. Default: 16"); -int resetwaittime = MEGASAS_RESET_WAIT_TIME; +unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; module_param(resetwaittime, int, S_IRUGO); MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout " "before resetting adapter. Default: 180"); @@ -100,6 +100,10 @@ unsigned int dual_qdepth_disable; module_param(dual_qdepth_disable, int, S_IRUGO); MODULE_PARM_DESC(dual_qdepth_disable, "Disable dual queue depth feature. Default: 0"); +unsigned int scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; +module_param(scmd_timeout, int, S_IRUGO); +MODULE_PARM_DESC(scmd_timeout, "scsi command timeout (10-90s), default 90s. See megasas_reset_timer."); + MODULE_LICENSE("GPL"); MODULE_VERSION(MEGASAS_VERSION); MODULE_AUTHOR("megaraidlinux.pdl@avagotech.com"); @@ -1850,7 +1854,7 @@ static int megasas_slave_configure(struct scsi_device *sdev) * The RAID firmware may require extended timeouts. */ blk_queue_rq_timeout(sdev->request_queue, - MEGASAS_DEFAULT_CMD_TIMEOUT * HZ); + scmd_timeout * HZ); return 0; } @@ -2645,7 +2649,7 @@ blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) unsigned long flags; if (time_after(jiffies, scmd->jiffies_at_alloc + - (MEGASAS_DEFAULT_CMD_TIMEOUT * 2) * HZ)) { + (scmd_timeout * 2) * HZ)) { return BLK_EH_NOT_HANDLED; } @@ -5254,6 +5258,11 @@ static int megasas_init_fw(struct megasas_instance *instance) instance->throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH; + if (resetwaittime > MEGASAS_RESET_WAIT_TIME) + resetwaittime = MEGASAS_RESET_WAIT_TIME; + + if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT)) + scmd_timeout = MEGASAS_DEFAULT_CMD_TIMEOUT; /* Launch SR-IOV heartbeat timer */ if (instance->requestorId) { diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 64926f7ef119..e740e2608a37 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -91,7 +91,7 @@ void megasas_start_timer(struct megasas_instance *instance, struct timer_list *timer, void *fn, unsigned long interval); extern struct megasas_mgmt_info megasas_mgmt_info; -extern int resetwaittime; +extern unsigned int resetwaittime; extern unsigned int dual_qdepth_disable; static void megasas_free_rdpq_fusion(struct megasas_instance *instance); static void megasas_free_reply_fusion(struct megasas_instance *instance);