diff options
| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2007-05-14 20:26:37 +0900 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-05-26 19:12:34 -0500 |
| commit | 985c0a7277760512c65bda2eb12c1c7213233eeb (patch) | |
| tree | ba11bcb2c38b9066589949483a71db4dc021cbdc | |
| parent | e1eaf460098e4fd168908af4e6951f921951e916 (diff) | |
[SCSI] a100u2w: convert to use the data buffer accessors
- remove the unnecessary map_single path.
- convert to use the new accessors for the sg lists and the
parameters.
Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| -rw-r--r-- | drivers/scsi/a100u2w.c | 50 |
1 files changed, 17 insertions, 33 deletions
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c index 7f4241bfb9c4..7cedc722fad9 100644 --- a/drivers/scsi/a100u2w.c +++ b/drivers/scsi/a100u2w.c @@ -796,7 +796,7 @@ static void orc_interrupt( *****************************************************************************/ static void inia100BuildSCB(ORC_HCS * pHCB, ORC_SCB * pSCB, struct scsi_cmnd * SCpnt) { /* Create corresponding SCB */ - struct scatterlist *pSrbSG; + struct scatterlist *sg; ORC_SG *pSG; /* Pointer to SG list */ int i, count_sg; ESCB *pEScb; @@ -813,30 +813,22 @@ static void inia100BuildSCB(ORC_HCS * pHCB, ORC_SCB * pSCB, struct scsi_cmnd * S pSCB->SCB_Reserved1 = 0; pSCB->SCB_SGLen = 0; - if ((pSCB->SCB_XferLen = (U32) SCpnt->request_bufflen)) { - pSG = (ORC_SG *) & pEScb->ESCB_SGList[0]; - if (SCpnt->use_sg) { - pSrbSG = (struct scatterlist *) SCpnt->request_buffer; - count_sg = pci_map_sg(pHCB->pdev, pSrbSG, SCpnt->use_sg, - SCpnt->sc_data_direction); - pSCB->SCB_SGLen = (U32) (count_sg * 8); - for (i = 0; i < count_sg; i++, pSG++, pSrbSG++) { - pSG->SG_Ptr = (U32) sg_dma_address(pSrbSG); - pSG->SG_Len = (U32) sg_dma_len(pSrbSG); - } - } else if (SCpnt->request_bufflen != 0) {/* Non SG */ - pSCB->SCB_SGLen = 0x8; - SCpnt->SCp.dma_handle = pci_map_single(pHCB->pdev, - SCpnt->request_buffer, - SCpnt->request_bufflen, - SCpnt->sc_data_direction); - pSG->SG_Ptr = (U32) SCpnt->SCp.dma_handle; - pSG->SG_Len = (U32) SCpnt->request_bufflen; - } else { - pSCB->SCB_SGLen = 0; - pSG->SG_Ptr = 0; - pSG->SG_Len = 0; + pSCB->SCB_XferLen = (U32) scsi_bufflen(SCpnt); + pSG = (ORC_SG *) & pEScb->ESCB_SGList[0]; + + count_sg = scsi_dma_map(SCpnt); + BUG_ON(count_sg < 0); + if (count_sg) { + pSCB->SCB_SGLen = (U32) (count_sg * 8); + scsi_for_each_sg(SCpnt, sg, count_sg, i) { + pSG->SG_Ptr = (U32) sg_dma_address(sg); + pSG->SG_Len = (U32) sg_dma_len(sg); + pSG++; } + } else { + pSCB->SCB_SGLen = 0; + pSG->SG_Ptr = 0; + pSG->SG_Len = 0; } pSCB->SCB_SGPAddr = (U32) pSCB->SCB_SensePAddr; pSCB->SCB_HaStat = 0; @@ -995,15 +987,7 @@ static void inia100SCBPost(BYTE * pHcb, BYTE * pScb) } pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16); - if (pSRB->use_sg) { - pci_unmap_sg(pHCB->pdev, - (struct scatterlist *)pSRB->request_buffer, - pSRB->use_sg, pSRB->sc_data_direction); - } else if (pSRB->request_bufflen != 0) { - pci_unmap_single(pHCB->pdev, pSRB->SCp.dma_handle, - pSRB->request_bufflen, - pSRB->sc_data_direction); - } + scsi_dma_unmap(pSRB); pSRB->scsi_done(pSRB); /* Notify system DONE */ |