diff options
| author | Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com> | 2017-10-31 18:02:28 +0530 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-11-03 12:20:52 -0400 |
| commit | 016d5c35e27824f31c394009dd0f72f2c6b0dc85 (patch) | |
| tree | 8a631356de4f2c8b1fd937a7b9d4de35f09c2421 /drivers/scsi/mpt3sas/mpt3sas_ctl.c | |
| parent | d88e1eaba6eee7bfe10480e575b33ab8a3a68e77 (diff) | |
| download | linux-016d5c35e27824f31c394009dd0f72f2c6b0dc85.tar.bz2 | |
scsi: mpt3sas: SGL to PRP Translation for I/Os to NVMe devices
* Added support for translating the SGLs associated with incoming
commands either to IEE SGL or NVMe PRPs for NVMe devices.
* The hardware translation of IEEE SGL to NVMe PRPs has limitations
and if a command cannot be translated by hardware then it will go to
firmware and the firmware needs to translate it. This will have a
performance impact. To avoid that, the driver proactively checks
whether the translation will be done in hardware or not. If not, then
driver translates.
[mkp: clarified commit message]
Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_ctl.c')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_ctl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c index d448fedca3b9..67c7280c10a3 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -299,6 +299,7 @@ mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, } } } + _ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply); ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING; complete(&ioc->ctl_cmds.done); |