diff mbox series

[09/15] mpi3mr: Wait for diagnostic save during controller init

Message ID 20230224144320.10601-10-ranjan.kumar@broadcom.com
State Superseded
Headers show
Series mpi3mr: Few Enhancements and minor fixes | expand

Commit Message

Ranjan Kumar Feb. 24, 2023, 2:43 p.m. UTC 
If the controller reset operation is triggered to recover the
controller from the fault state then wait for the snapdump to
be saved in the firmware region before proceeding for
resetting the controller.

Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
---
 drivers/scsi/mpi3mr/mpi3mr_fw.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index e9b3552ccafb..936a6edb00f4 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -1201,7 +1201,7 @@  mpi3mr_revalidate_factsdata(struct mpi3mr_ioc *mrioc)
  */
 static int mpi3mr_bring_ioc_ready(struct mpi3mr_ioc *mrioc)
 {
-	u32 ioc_config, ioc_status, timeout;
+	u32 ioc_config, ioc_status, timeout, host_diagnostic;
 	int retval = 0;
 	enum mpi3mr_iocstate ioc_state;
 	u64 base_info;
@@ -1255,6 +1255,23 @@  static int mpi3mr_bring_ioc_ready(struct mpi3mr_ioc *mrioc)
 			    retval, mpi3mr_iocstate_name(ioc_state));
 	}
 	if (ioc_state != MRIOC_STATE_RESET) {
+		if (ioc_state == MRIOC_STATE_FAULT) {
+			timeout = MPI3_SYSIF_DIAG_SAVE_TIMEOUT * 10;
+			mpi3mr_print_fault_info(mrioc);
+			do {
+				host_diagnostic =
+					readl(&mrioc->sysif_regs->host_diagnostic);
+				if (!(host_diagnostic &
+				      MPI3_SYSIF_HOST_DIAG_SAVE_IN_PROGRESS))
+					break;
+				if (!pci_device_is_present(mrioc->pdev)) {
+					mrioc->unrecoverable = 1;
+					ioc_err(mrioc, "controller is not present at the bringup\n");
+					goto out_device_not_present;
+				}
+				msleep(100);
+			} while (--timeout);
+		}
 		mpi3mr_print_fault_info(mrioc);
 		ioc_info(mrioc, "issuing soft reset to bring to reset state\n");
 		retval = mpi3mr_issue_reset(mrioc,