scsi: mpi3mr: Scan the devices during resume time

Scan the target devices during system resume time and add or remove the
target device with the SML if the corresponding target device is newly
added or removed respectively.

Link: https://lore.kernel.org/r/20220912135742.11764-8-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h
index 883ed59..5b10504 100644 (file)
--- a/drivers/scsi/mpi3mr/mpi3mr.h
+++ b/drivers/scsi/mpi3mr/mpi3mr.h
@@ -132,6 +132,8 @@ extern atomic64_t event_counter;
 
 #define MPI3MR_DEFAULT_CFG_PAGE_SZ             1024 /* in bytes */
 
+#define MPI3MR_RESET_TOPOLOGY_SETTLE_TIME      10
+
 #define MPI3MR_SCMD_TIMEOUT    (60 * HZ)
 #define MPI3MR_EH_SCMD_TIMEOUT (60 * HZ)
 

diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index e3df044..f841a44 100644 (file)
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -4042,10 +4042,8 @@ retry_init:
                goto out_failed;
        }
 
-       if (!is_resume) {
-               mrioc->device_refresh_on = 1;
-               mpi3mr_add_event_wait_for_device_refresh(mrioc);
-       }
+       mrioc->device_refresh_on = 1;
+       mpi3mr_add_event_wait_for_device_refresh(mrioc);
 
        ioc_info(mrioc, "sending port enable\n");
        retval = mpi3mr_issue_port_enable(mrioc, 1);
@@ -4912,7 +4910,7 @@ int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc,
                    mrioc->name, reset_reason);
                goto out;
        }
-       ssleep(10);
+       ssleep(MPI3MR_RESET_TOPOLOGY_SETTLE_TIME);
 
 out:
        if (!retval) {

diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 282ec4b..d61837f 100644 (file)
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -5228,13 +5228,17 @@ mpi3mr_resume(struct device *dev)
        }
 
        mrioc->stop_drv_processing = 0;
+       mpi3mr_invalidate_devhandles(mrioc);
+       mpi3mr_free_enclosure_list(mrioc);
        mpi3mr_memset_buffers(mrioc);
        r = mpi3mr_reinit_ioc(mrioc, 1);
        if (r) {
                ioc_err(mrioc, "resuming controller failed[%d]\n", r);
                return r;
        }
+       ssleep(MPI3MR_RESET_TOPOLOGY_SETTLE_TIME);
        scsi_unblock_requests(shost);
+       mrioc->device_refresh_on = 0;
        mpi3mr_start_watchdog(mrioc);
 
        return 0;