diff options
| author | Justin Tee <justin.tee@broadcom.com> | 2024-04-30 01:15:45 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-05-07 04:53:58 +0300 |
| commit | af20bb73ac2591631d504f3f859f073bcdb7e11e (patch) | |
| tree | 27476189c4cc54aad0d4ae0c56b197469b8bb29d /drivers/scsi/lpfc/lpfc_init.c | |
| parent | e780c9423b1095ae9d96ce8fdbe2a92592d88073 (diff) | |
| download | linux-af20bb73ac2591631d504f3f859f073bcdb7e11e.tar.xz | |
scsi: lpfc: Add support for 32 byte CDBs
The driver's I/O path is updated to support 32 byte CDBs.
Changes to accommodate 32 byte CDBs include:
- Updating various size fields to allow for the larger 32 byte CDB.
- Starting the FCP command payload at an earlier offset in WQE submission
to fit the 32 byte CDB.
- Redefining relevant structs to __le32/__be32 data types for proper cpu
endianness macro usage.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20240429221547.6842-7-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 10e8b8479ad9..e1dfa96c2a55 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -4773,7 +4773,10 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) shost->max_id = LPFC_MAX_TARGET; shost->max_lun = vport->cfg_max_luns; shost->this_id = -1; - shost->max_cmd_len = 16; + if (phba->sli_rev == LPFC_SLI_REV4) + shost->max_cmd_len = LPFC_FCP_CDB_LEN_32; + else + shost->max_cmd_len = LPFC_FCP_CDB_LEN; if (phba->sli_rev == LPFC_SLI_REV4) { if (!phba->cfg_fcp_mq_threshold || @@ -8231,7 +8234,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) * our max amount and we need to limit lpfc_sg_seg_cnt * to minimize the risk of running out. */ - phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + + phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd32) + sizeof(struct fcp_rsp) + max_buf_size; /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ @@ -8253,7 +8256,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) * the FCP rsp, a SGE for each, and a SGE for up to * cfg_sg_seg_cnt data segments. */ - phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + + phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd32) + sizeof(struct fcp_rsp) + ((phba->cfg_sg_seg_cnt + extra) * sizeof(struct sli4_sge)); @@ -8316,7 +8319,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) phba->lpfc_cmd_rsp_buf_pool = dma_pool_create("lpfc_cmd_rsp_buf_pool", &phba->pcidev->dev, - sizeof(struct fcp_cmnd) + + sizeof(struct fcp_cmnd32) + sizeof(struct fcp_rsp), i, 0); if (!phba->lpfc_cmd_rsp_buf_pool) { |