diff options
| author | Darren Trapp <darren.trapp@cavium.com> | 2019-02-15 14:37:13 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-19 18:58:35 -0500 |
| commit | 03aaa89fe46feccccf29e137131400f309431e64 (patch) | |
| tree | 811ae004d120284b72101151deef609136e66eb4 /drivers/scsi/qla2xxx/qla_nvme.c | |
| parent | ec322937a7f152d68755dc8316523bf6f831b48f (diff) | |
| download | linux-03aaa89fe46feccccf29e137131400f309431e64.tar.bz2 | |
scsi: qla2xxx: Add First Burst support for FC-NVMe devices
Add Support for First Burst for FC-NVMe protocol. This feature requires
First Burst support in the firmware.
Signed-off-by: Darren Trapp <darren.trapp@cavium.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_nvme.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_nvme.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 39d892bbd219..d6ba078d8255 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -358,17 +358,24 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) /* No data transfer how do we check buffer len == 0?? */ if (fd->io_dir == NVMEFC_FCP_READ) { - cmd_pkt->control_flags = - cpu_to_le16(CF_READ_DATA | CF_NVME_ENABLE); + cmd_pkt->control_flags = CF_READ_DATA; vha->qla_stats.input_bytes += fd->payload_length; vha->qla_stats.input_requests++; } else if (fd->io_dir == NVMEFC_FCP_WRITE) { - cmd_pkt->control_flags = - cpu_to_le16(CF_WRITE_DATA | CF_NVME_ENABLE); + cmd_pkt->control_flags = CF_WRITE_DATA; + if ((vha->flags.nvme_first_burst) && + (sp->fcport->nvme_prli_service_param & + NVME_PRLI_SP_FIRST_BURST)) { + if ((fd->payload_length <= + sp->fcport->nvme_first_burst_size) || + (sp->fcport->nvme_first_burst_size == 0)) + cmd_pkt->control_flags |= + CF_NVME_FIRST_BURST_ENABLE; + } vha->qla_stats.output_bytes += fd->payload_length; vha->qla_stats.output_requests++; } else if (fd->io_dir == 0) { - cmd_pkt->control_flags = cpu_to_le16(CF_NVME_ENABLE); + cmd_pkt->control_flags = 0; } /* Set NPORT-ID */ |