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| author | Sreekanth Reddy <sreekanth.reddy@broadcom.com> | 2022-09-12 19:27:37 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-25 13:49:52 -0400 |
| commit | f2a79d2030ad9055e58f5b617f655fa5e270a57c (patch) | |
| tree | 1cfb76c86ad0c55c347a72e2391ba61e6495af56 /drivers/scsi/mpi3mr/mpi3mr.h | |
| parent | 7f9f953d537a7c8362ed6adafd25ef8deb548756 (diff) | |
| download | linux-f2a79d2030ad9055e58f5b617f655fa5e270a57c.tar.gz linux-f2a79d2030ad9055e58f5b617f655fa5e270a57c.tar.bz2 linux-f2a79d2030ad9055e58f5b617f655fa5e270a57c.zip | |
scsi: mpi3mr: Graceful handling of surprise removal of PCIe HBA
Implement graceful handling of surprise or orderly removal of PCIe HBA:
- Detect a hot removal of the controller at certain critical places in the
driver. Early detection will help to reduce the time taken for cleaning
up the hot-removed controller at the driver level.
- Poll the status of the port enable issued after reset once every 5
seconds to avoid a long delay in detecting unavailable controller.
Link: https://lore.kernel.org/r/20220912135742.11764-5-sreekanth.reddy@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpi3mr/mpi3mr.h')
| -rw-r--r-- | drivers/scsi/mpi3mr/mpi3mr.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index 0f47b451beb3..0eb0647fe580 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -118,6 +118,7 @@ extern atomic64_t event_counter; /* command/controller interaction timeout definitions in seconds */ #define MPI3MR_INTADMCMD_TIMEOUT 60 #define MPI3MR_PORTENABLE_TIMEOUT 300 +#define MPI3MR_PORTENABLE_POLL_INTERVAL 5 #define MPI3MR_ABORTTM_TIMEOUT 60 #define MPI3MR_RESETTM_TIMEOUT 60 #define MPI3MR_RESET_HOST_IOWAIT_TIMEOUT 5 @@ -1389,4 +1390,6 @@ void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, void mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc); void mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc); void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc); +void mpi3mr_flush_drv_cmds(struct mpi3mr_ioc *mrioc); +void mpi3mr_flush_cmds_for_unrecovered_controller(struct mpi3mr_ioc *mrioc); #endif /*MPI3MR_H_INCLUDED*/ |