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linux/drivers/scsi/megaraid
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Shivasharan S f870bcbe9a scsi: megaraid_sas: NVMe passthrough command support 
NVMe passthrough via MFI interface. Current MegaRAID product supports
different types of encapsulation via the MFI framework.

NVMe native command should be framed by application and it should be
embedded in MFI as payload. The driver will provide interface to send
the MFI frame along with the payload (in this case, payload is NVMe
native command) to the firmware. Driver already has an existing, similar
interface for SATA and SMP passthrough.

1. Driver will pass MFI command to the firmware if the latter supports
   NVMe encapsulated processing (not all SAS3.5 firmware supports this
   feature).

2. Driver exposes sysfs entry support_nvme_encapsulation. This is
   required for backward compatibility for applications using earlier
   driver versions that did not process IOCTL frames and could result in
   host hang.

   This is already fixed as part of commit 82add4e1b3 ("scsi:
   megaraid_sas: Incorrect processing of IOCTL frames for SMP/STP
   commands")

[mkp: clarified commit message]

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-01-22 20:03:58 -05:00
..
Kconfig.megaraid
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mbox_defs.h
mega_common.h scsi: use 64-bit LUNs 2014-07-17 22:07:37 +02:00
megaraid_ioctl.h scsi: megaraid: Convert timers to use timer_setup() 2017-11-01 11:27:08 -07:00
megaraid_mbox.c scsi: megaraid: Convert timers to use timer_setup() 2017-11-01 11:27:08 -07:00
megaraid_mbox.h
megaraid_mm.c scsi: megaraid: Convert timers to use timer_setup() 2017-11-01 11:27:08 -07:00
megaraid_mm.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
megaraid_sas_base.c scsi: megaraid_sas: NVMe passthrough command support 2018-01-22 20:03:58 -05:00
megaraid_sas_fp.c scsi: megaraid_sas: Update LD map after populating drv_map driver map copy 2018-01-10 23:25:17 -05:00
megaraid_sas_fusion.c scsi: megaraid_sas: NVMe passthrough command support 2018-01-22 20:03:58 -05:00
megaraid_sas_fusion.h scsi: megaraid_sas: re-work DCMD refire code 2018-01-10 23:25:19 -05:00
megaraid_sas.h scsi: megaraid_sas: NVMe passthrough command support 2018-01-22 20:03:58 -05:00