diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 07cb671bb855..2eba0c39ac1c 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -2714,6 +2714,7 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; int prot_group_type = 0; int fcpdl; + struct lpfc_vport *vport = phba->pport; /* * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd @@ -2819,6 +2820,14 @@ lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, */ iocb_cmd->un.fcpi.fcpi_parm = fcpdl; + /* + * For First burst, we may need to adjust the initial transfer + * length for DIF + */ + if (iocb_cmd->un.fcpi.fcpi_XRdy && + (fcpdl < vport->cfg_first_burst_size)) + iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl; + return 0; err: if (lpfc_cmd->seg_cnt) @@ -3371,6 +3380,7 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; int prot_group_type = 0; int fcpdl; + struct lpfc_vport *vport = phba->pport; /* * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd @@ -3486,6 +3496,14 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, */ iocb_cmd->un.fcpi.fcpi_parm = fcpdl; + /* + * For First burst, we may need to adjust the initial transfer + * length for DIF + */ + if (iocb_cmd->un.fcpi.fcpi_XRdy && + (fcpdl < vport->cfg_first_burst_size)) + iocb_cmd->un.fcpi.fcpi_XRdy = fcpdl; + /* * If the OAS driver feature is enabled and the lun is enabled for * OAS, set the oas iocb related flags.