summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/megaraid
diff options
context:
space:
mode:
authorJames Bottomley <JBottomley@Parallels.com>2012-10-02 08:55:12 +0100
committerJames Bottomley <JBottomley@Parallels.com>2012-10-02 08:55:12 +0100
commitfe709ed827d370e6b0c0a9f9456da1c22bdcd118 (patch)
treec5a7fd72a745a5f6656a58acc9a1d277e26f9595 /drivers/scsi/megaraid
parent1c4cf1d5845b59cdcbfad8e67272cf5b219ab062 (diff)
parent0644f5393e915f13733bcc65f13195ff39aeb63e (diff)
downloadblackbird-op-linux-fe709ed827d370e6b0c0a9f9456da1c22bdcd118.tar.gz
blackbird-op-linux-fe709ed827d370e6b0c0a9f9456da1c22bdcd118.zip
Merge SCSI misc branch into isci-for-3.6 tag
Diffstat (limited to 'drivers/scsi/megaraid')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.h8
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_base.c39
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c12
3 files changed, 44 insertions, 15 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index e8f892647681..fcb005fa4bd1 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -33,9 +33,9 @@
/*
* MegaRAID SAS Driver meta data
*/
-#define MEGASAS_VERSION "00.00.06.15-rc1"
-#define MEGASAS_RELDATE "Mar. 19, 2012"
-#define MEGASAS_EXT_VERSION "Mon. Mar. 19 17:00:00 PDT 2012"
+#define MEGASAS_VERSION "00.00.06.18-rc1"
+#define MEGASAS_RELDATE "Jun. 17, 2012"
+#define MEGASAS_EXT_VERSION "Tue. Jun. 17 17:00:00 PDT 2012"
/*
* Device IDs
@@ -747,6 +747,7 @@ struct megasas_ctrl_info {
#define MEGASAS_RESET_NOTICE_INTERVAL 5
#define MEGASAS_IOCTL_CMD 0
#define MEGASAS_DEFAULT_CMD_TIMEOUT 90
+#define MEGASAS_THROTTLE_QUEUE_DEPTH 16
/*
* FW reports the maximum of number of commands that it can accept (maximum
@@ -1364,6 +1365,7 @@ struct megasas_instance {
unsigned long bar;
long reset_flags;
struct mutex reset_mutex;
+ int throttlequeuedepth;
};
enum {
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index ed38454228c6..0393ec478cdf 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -18,7 +18,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* FILE: megaraid_sas_base.c
- * Version : v00.00.06.15-rc1
+ * Version : v00.00.06.18-rc1
*
* Authors: LSI Corporation
* Sreenivas Bagalkote
@@ -71,6 +71,16 @@ static int msix_disable;
module_param(msix_disable, int, S_IRUGO);
MODULE_PARM_DESC(msix_disable, "Disable MSI-X interrupt handling. Default: 0");
+static int throttlequeuedepth = MEGASAS_THROTTLE_QUEUE_DEPTH;
+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;
+module_param(resetwaittime, int, S_IRUGO);
+MODULE_PARM_DESC(resetwaittime, "Wait time in seconds after I/O timeout "
+ "before resetting adapter. Default: 180");
+
MODULE_LICENSE("GPL");
MODULE_VERSION(MEGASAS_VERSION);
MODULE_AUTHOR("megaraidlinux@lsi.com");
@@ -1595,8 +1605,9 @@ megasas_check_and_restore_queue_depth(struct megasas_instance *instance)
{
unsigned long flags;
if (instance->flag & MEGASAS_FW_BUSY
- && time_after(jiffies, instance->last_time + 5 * HZ)
- && atomic_read(&instance->fw_outstanding) < 17) {
+ && time_after(jiffies, instance->last_time + 5 * HZ)
+ && atomic_read(&instance->fw_outstanding) <
+ instance->throttlequeuedepth + 1) {
spin_lock_irqsave(instance->host->host_lock, flags);
instance->flag &= ~MEGASAS_FW_BUSY;
@@ -1772,7 +1783,7 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance)
return SUCCESS;
}
- for (i = 0; i < wait_time; i++) {
+ for (i = 0; i < resetwaittime; i++) {
int outstanding = atomic_read(&instance->fw_outstanding);
@@ -1914,7 +1925,7 @@ blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd)
/* FW is busy, throttle IO */
spin_lock_irqsave(instance->host->host_lock, flags);
- instance->host->can_queue = 16;
+ instance->host->can_queue = instance->throttlequeuedepth;
instance->last_time = jiffies;
instance->flag |= MEGASAS_FW_BUSY;
@@ -3577,6 +3588,24 @@ static int megasas_init_fw(struct megasas_instance *instance)
kfree(ctrl_info);
+ /* Check for valid throttlequeuedepth module parameter */
+ if (instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0073SKINNY ||
+ instance->pdev->device == PCI_DEVICE_ID_LSI_SAS0071SKINNY) {
+ if (throttlequeuedepth > (instance->max_fw_cmds -
+ MEGASAS_SKINNY_INT_CMDS))
+ instance->throttlequeuedepth =
+ MEGASAS_THROTTLE_QUEUE_DEPTH;
+ else
+ instance->throttlequeuedepth = throttlequeuedepth;
+ } else {
+ if (throttlequeuedepth > (instance->max_fw_cmds -
+ MEGASAS_INT_CMDS))
+ instance->throttlequeuedepth =
+ MEGASAS_THROTTLE_QUEUE_DEPTH;
+ else
+ instance->throttlequeuedepth = throttlequeuedepth;
+ }
+
/*
* Setup tasklet for cmd completion
*/
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index a610cf1d4847..ddf094e7d0ac 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -94,6 +94,7 @@ int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
void megaraid_sas_kill_hba(struct megasas_instance *instance);
extern u32 megasas_dbg_lvl;
+extern int resetwaittime;
/**
* megasas_enable_intr_fusion - Enables interrupts
@@ -461,8 +462,8 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance)
* Allocate the dynamic array first and then allocate individual
* commands.
*/
- fusion->cmd_list = kmalloc(sizeof(struct megasas_cmd_fusion *)
- *max_cmd, GFP_KERNEL);
+ fusion->cmd_list = kzalloc(sizeof(struct megasas_cmd_fusion *)
+ * max_cmd, GFP_KERNEL);
if (!fusion->cmd_list) {
printk(KERN_DEBUG "megasas: out of memory. Could not alloc "
@@ -470,9 +471,6 @@ megasas_alloc_cmds_fusion(struct megasas_instance *instance)
goto fail_cmd_list;
}
- memset(fusion->cmd_list, 0, sizeof(struct megasas_cmd_fusion *)
- *max_cmd);
-
max_cmd = instance->max_fw_cmds;
for (i = 0; i < max_cmd; i++) {
fusion->cmd_list[i] = kmalloc(sizeof(struct megasas_cmd_fusion),
@@ -2063,9 +2061,9 @@ megasas_check_reset_fusion(struct megasas_instance *instance,
int megasas_wait_for_outstanding_fusion(struct megasas_instance *instance)
{
int i, outstanding, retval = 0;
- u32 fw_state, wait_time = MEGASAS_RESET_WAIT_TIME;
+ u32 fw_state;
- for (i = 0; i < wait_time; i++) {
+ for (i = 0; i < resetwaittime; i++) {
/* Check if firmware is in fault state */
fw_state = instance->instancet->read_fw_status_reg(
instance->reg_set) & MFI_STATE_MASK;
OpenPOWER on IntegriCloud