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| author | Sumit Saxena <sumit.saxena@broadcom.com> | 2022-04-29 23:16:40 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-05-02 23:02:42 +0200 |
| commit | 7dbd0dd8cde356d2a747d5c87dad7c2233dad8a4 (patch) | |
| tree | 2f267532409bd086ef9b6c6905fcd99a32b461c6 /include/uapi/scsi | |
| parent | scsi: mpi3mr: Expose adapter state to sysfs (diff) | |
| download | linux-7dbd0dd8cde356d2a747d5c87dad7c2233dad8a4.tar.xz linux-7dbd0dd8cde356d2a747d5c87dad7c2233dad8a4.zip | |
scsi: mpi3mr: Add support for NVMe passthrough
Add support for management applications to send an MPI3 Encapsulated NVMe
passthru command to the NVMe devices attached to an Avenger controller.
Since the NVMe drives are exposed as SCSI devices by the controller, the
standard NVMe applications cannot be used to interact with the drives and
the command sets supported are also limited by the controller firmware.
Special handling is required for MPI3 Encapsulated NVMe passthru commands
for PRP/SGL setup in the commands.
Link: https://lore.kernel.org/r/20220429211641.642010-8-sumit.saxena@broadcom.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/uapi/scsi')
| -rw-r--r-- | include/uapi/scsi/scsi_bsg_mpi3mr.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/scsi/scsi_bsg_mpi3mr.h b/include/uapi/scsi/scsi_bsg_mpi3mr.h index b2c88d5d9c4c..fdc3517f9e19 100644 --- a/include/uapi/scsi/scsi_bsg_mpi3mr.h +++ b/include/uapi/scsi/scsi_bsg_mpi3mr.h @@ -490,6 +490,14 @@ struct mpi3_nvme_encapsulated_error_reply { __le32 nvme_completion_entry[4]; }; +#define MPI3MR_NVME_PRP_SIZE 8 /* PRP size */ +#define MPI3MR_NVME_CMD_PRP1_OFFSET 24 /* PRP1 offset in NVMe cmd */ +#define MPI3MR_NVME_CMD_PRP2_OFFSET 32 /* PRP2 offset in NVMe cmd */ +#define MPI3MR_NVME_CMD_SGL_OFFSET 24 /* SGL offset in NVMe cmd */ +#define MPI3MR_NVME_DATA_FORMAT_PRP 0 +#define MPI3MR_NVME_DATA_FORMAT_SGL1 1 +#define MPI3MR_NVME_DATA_FORMAT_SGL2 2 + /* MPI3: task management related definitions */ struct mpi3_scsi_task_mgmt_request { __le16 host_tag; |