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Subject[PATCH 6/10] scsi: megaraid_sas - Report the Unconfigured PD (system PD) to OS
Report the Un-configured PD (system PD) to OS.

Signed-off-by Bo Yang<bo.yang@lsi.com>

---
drivers/scsi/megaraid/megaraid_sas.c | 57 +++++++++++++++++++----------------
1 file changed, 32 insertions(+), 25 deletions(-)
diff -rupN linux-2.6.28_orig/drivers/scsi/megaraid/megaraid_sas.c linux-2.6.28_new/drivers/scsi/megaraid/megaraid_sas.c
--- linux-2.6.28_orig/drivers/scsi/megaraid/megaraid_sas.c 2009-05-04 20:24:19.000000000 -0400
+++ linux-2.6.28_new/drivers/scsi/megaraid/megaraid_sas.c 2009-05-04 20:30:02.000000000 -0400
@@ -1114,24 +1114,45 @@ megasas_queue_command(struct scsi_cmnd *
return 0;
}

+static struct megasas_instance *megasas_lookup_instance(u16 host_no)
+{
+ int i;
+
+ for (i = 0; i < megasas_mgmt_info.max_index; i++) {
+
+ if ((megasas_mgmt_info.instance[i]) &&
+ (megasas_mgmt_info.instance[i]->host->host_no == host_no))
+ return megasas_mgmt_info.instance[i];
+ }
+
+ return NULL;
+}
+
static int megasas_slave_configure(struct scsi_device *sdev)
{
- /*
- * Don't export physical disk devices to the disk driver.
- *
- * FIXME: Currently we don't export them to the midlayer at all.
- * That will be fixed once LSI engineers have audited the
- * firmware for possible issues.
- */
- if (sdev->channel < MEGASAS_MAX_PD_CHANNELS && sdev->type == TYPE_DISK)
+ u16 pd_index = 0;
+ struct megasas_instance *instance;
+ instance = megasas_lookup_instance(sdev->host->host_no);
+
+ /* only export system physical disk devices to the midlayer */
+ if ((sdev->channel < MEGASAS_MAX_PD_CHANNELS) &&
+ (sdev->type == TYPE_DISK)) {
+ pd_index = (sdev->channel * MEGASAS_MAX_DEV_PER_CHANNEL) +
+ sdev->id;
+ if ((instance->pd_list[pd_index].driveState ==
+ MR_PD_STATE_SYSTEM)) {
+ blk_queue_rq_timeout(sdev->request_queue,
+ MEGASAS_DEFAULT_CMD_TIMEOUT * HZ);
+ return 0;
+ }
return -ENXIO;
+ }

/*
* The RAID firmware may require extended timeouts.
*/
- if (sdev->channel >= MEGASAS_MAX_PD_CHANNELS)
- blk_queue_rq_timeout(sdev->request_queue,
- MEGASAS_DEFAULT_CMD_TIMEOUT * HZ);
+ blk_queue_rq_timeout(sdev->request_queue,
+ MEGASAS_DEFAULT_CMD_TIMEOUT * HZ);
return 0;
}

@@ -3453,20 +3474,6 @@ megasas_mgmt_fw_ioctl(struct megasas_ins
return error;
}

-static struct megasas_instance *megasas_lookup_instance(u16 host_no)
-{
- int i;
-
- for (i = 0; i < megasas_mgmt_info.max_index; i++) {
-
- if ((megasas_mgmt_info.instance[i]) &&
- (megasas_mgmt_info.instance[i]->host->host_no == host_no))
- return megasas_mgmt_info.instance[i];
- }
-
- return NULL;
-}
-
static int megasas_mgmt_ioctl_fw(struct file *file, unsigned long arg)
{
struct megasas_iocpacket __user *user_ioc =

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