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[SCSI] lpfc 8.3.29: T10 Diff fixes and enhancements

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T10 Diff fixes and enhancements:

- Add SLI4 Lancer support for T10 DIF / BlockGuard (121980)
- Fix SLI4 BlockGuard behavior when protection data is generated by HBA (121980)
- Enhance debugfs for injecting T10 DIF errors (123966, 132966)
- Fix Incorrect usage of bghm for BlockGuard errors (127022)

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart
2012-01-18 16:25:09 -05:00
committed by James Bottomley
parent 6b5151fd7b
commit acd6859b08
7 changed files with 1056 additions and 132 deletions
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54
drivers/scsi/lpfc/lpfc_sli.c
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@@ -7839,12 +7839,16 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
/* Always open the exchange */
bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
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:
/* word3 iocb=iotag wqe=payload_offset_len */
@@ -7858,12 +7862,16 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
/* Always open the exchange */
bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
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:
/* word3 iocb=IO_TAG wqe=reserved */
@@ -10672,12 +10680,14 @@ lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
struct lpfc_wcqe_complete *wcqe)
{
unsigned long iflags;
uint32_t status;
size_t offset = offsetof(struct lpfc_iocbq, iocb);
memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
sizeof(struct lpfc_iocbq) - offset);
/* Map WCQE parameters into irspiocb parameters */
pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
status = bf_get(lpfc_wcqe_c_status, wcqe);
pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
if (pIocbOut->iocb_flag & LPFC_IO_FCP)
if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
pIocbIn->iocb.un.fcpi.fcpi_parm =
@@ -10690,6 +10700,44 @@ lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
}
/* Convert BG errors for completion status */
if (status == CQE_STATUS_DI_ERROR) {
pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
else
pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
BGS_GUARD_ERR_MASK;
if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
BGS_APPTAG_ERR_MASK;
if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
BGS_REFTAG_ERR_MASK;
/* Check to see if there was any good data before the error */
if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
BGS_HI_WATER_MARK_PRESENT_MASK;
pIocbIn->iocb.unsli3.sli3_bg.bghm =
wcqe->total_data_placed;
}
/*
* Set ALL the error bits to indicate we don't know what
* type of error it is.
*/
if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
(BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
BGS_GUARD_ERR_MASK);
}
/* Pick up HBA exchange busy condition */
if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
spin_lock_irqsave(&phba->hbalock, iflags);