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scsi: mpi3mr: Fix controller init failure on fault during queue creation

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Firmware can enter a transient fault while creating operational queues.
The driver fails the load immediately.

Add a retry loop that checks controller status and history bit after
queue creation. If either indicates a fault, retry init up to a set
limit before failing.

Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Link: https://lore.kernel.org/r/20250820084138.228471-3-chandrakanth.patil@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Chandrakanth Patil
2025-08-20 14:11:34 +05:30
committed by Martin K. Petersen
parent d6c8e8b7c9
commit 829fa1582b
1 changed files with 10 additions and 0 deletions
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10
drivers/scsi/mpi3mr/mpi3mr_fw.c
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@@ -2353,6 +2353,8 @@ static int mpi3mr_create_op_queues(struct mpi3mr_ioc *mrioc)
{
int retval = 0;
u16 num_queues = 0, i = 0, msix_count_op_q = 1;
u32 ioc_status;
enum mpi3mr_iocstate ioc_state;
num_queues = min_t(int, mrioc->facts.max_op_reply_q,
mrioc->facts.max_op_req_q);
@@ -2408,6 +2410,14 @@ static int mpi3mr_create_op_queues(struct mpi3mr_ioc *mrioc)
retval = -1;
goto out_failed;
}
ioc_status = readl(&mrioc->sysif_regs->ioc_status);
ioc_state = mpi3mr_get_iocstate(mrioc);
if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) ||
ioc_state != MRIOC_STATE_READY) {
mpi3mr_print_fault_info(mrioc);
retval = -1;
goto out_failed;
}
mrioc->num_op_reply_q = mrioc->num_op_req_q = i;
ioc_info(mrioc,
"successfully created %d operational queue pairs(default/polled) queue = (%d/%d)\n",