Update DIF support for passthru/strip/insert
Signed-off-by: James Smart <james.smart@xxxxxxxxxx>
---
lpfc_hw4.h | 3 +++
lpfc_scsi.c | 16 +++++++++++++++-
lpfc_sli.c | 16 ++++++++--------
lpfc_sli.h | 4 +++-
4 files changed, 29 insertions(+), 10 deletions(-)
diff -upNr a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
--- a/drivers/scsi/lpfc/lpfc_hw4.h 2012-10-23 09:51:51.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc_hw4.h 2012-10-29 11:18:40.486033030 -0400
@@ -3219,6 +3219,9 @@ struct wqe_common {
#define wqe_dif_SHIFT 0
#define wqe_dif_MASK 0x00000003
#define wqe_dif_WORD word7
+#define LPFC_WQE_DIF_PASSTHRU 1
+#define LPFC_WQE_DIF_STRIP 2
+#define LPFC_WQE_DIF_INSERT 3
#define wqe_ct_SHIFT 2
#define wqe_ct_MASK 0x00000003
#define wqe_ct_WORD word7
diff -upNr a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
--- a/drivers/scsi/lpfc/lpfc_scsi.c 2012-10-29 11:18:35.053032906 -0400
+++ b/drivers/scsi/lpfc/lpfc_scsi.c 2012-10-29 11:18:40.501033031 -0400
@@ -3227,6 +3227,21 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc
}
}
+ switch (scsi_get_prot_op(scsi_cmnd)) {
+ case SCSI_PROT_WRITE_STRIP:
+ case SCSI_PROT_READ_STRIP:
+ lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_STRIP;
+ break;
+ case SCSI_PROT_WRITE_INSERT:
+ case SCSI_PROT_READ_INSERT:
+ lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_INSERT;
+ break;
+ case SCSI_PROT_WRITE_PASS:
+ case SCSI_PROT_READ_PASS:
+ lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF_PASS;
+ break;
+ }
+
fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd);
fcp_cmnd->fcpDl = be32_to_cpu(fcpdl);
@@ -3236,7 +3251,6 @@ lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc
* we need to set word 4 of IOCB here
*/
iocb_cmd->un.fcpi.fcpi_parm = fcpdl;
- lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF;
return 0;
err:
diff -upNr a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
--- a/drivers/scsi/lpfc/lpfc_sli.c 2012-10-23 09:51:51.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc_sli.c 2012-10-29 11:18:40.506033031 -0400
@@ -8068,10 +8068,6 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba
LPFC_WQE_LENLOC_WORD4);
bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
- if (iocbq->iocb_flag & LPFC_IO_DIF) {
- iocbq->iocb_flag &= ~LPFC_IO_DIF;
- bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
- }
bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
break;
case CMD_FCP_IREAD64_CR:
@@ -8091,10 +8087,6 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba
LPFC_WQE_LENLOC_WORD4);
bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
- if (iocbq->iocb_flag & LPFC_IO_DIF) {
- iocbq->iocb_flag &= ~LPFC_IO_DIF;
- bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
- }
bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
break;
case CMD_FCP_ICMND64_CR:
@@ -8304,6 +8296,14 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba
break;
}
+ if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
+ bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
+ else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
+ bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
+ else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
+ bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
+ iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
+ LPFC_IO_DIF_INSERT);
bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
wqe->generic.wqe_com.abort_tag = abort_tag;
diff -upNr a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h
--- a/drivers/scsi/lpfc/lpfc_sli.h 2012-09-26 20:19:47.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc_sli.h 2012-10-29 11:18:40.517033031 -0400
@@ -69,7 +69,9 @@ struct lpfc_iocbq {
#define LPFC_USE_FCPWQIDX 0x80 /* Submit to specified FCPWQ index */
#define DSS_SECURITY_OP 0x100 /* security IO */
#define LPFC_IO_ON_TXCMPLQ 0x200 /* The IO is still on the TXCMPLQ */
-#define LPFC_IO_DIF 0x400 /* T10 DIF IO */
+#define LPFC_IO_DIF_PASS 0x400 /* T10 DIF IO pass-thru prot */
+#define LPFC_IO_DIF_STRIP 0x800 /* T10 DIF IO strip prot */
+#define LPFC_IO_DIF_INSERT 0x1000 /* T10 DIF IO insert prot */
#define LPFC_FIP_ELS_ID_MASK 0xc000 /* ELS_ID range 0-3, non-shifted mask */
#define LPFC_FIP_ELS_ID_SHIFT 14
--
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