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| author | Hannes Reinecke <hare@suse.de> | 2015-04-24 13:18:22 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-05-25 12:20:51 -0700 |
| commit | 811ddc057aac7228858fbb9cdd88137714dd807a (patch) | |
| tree | c606d02f01da190f76a9931d1b2ba516b0432a51 /drivers/scsi/advansys.c | |
| parent | 9c17c62aedb003cb7ea644c15f8cbb249c29c8ae (diff) | |
| download | op-kernel-dev-811ddc057aac7228858fbb9cdd88137714dd807a.zip op-kernel-dev-811ddc057aac7228858fbb9cdd88137714dd807a.tar.gz | |
advansys: use DMA-API for mapping sense buffer
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/advansys.c')
| -rw-r--r-- | drivers/scsi/advansys.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index b595e8b..dba8c1a 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -1844,7 +1844,7 @@ typedef struct adv_scsi_req_q { uchar target_lun; /* Device target logical unit number. */ ADV_PADDR data_addr; /* Data buffer physical address. */ ADV_DCNT data_cnt; /* Data count. Ucode sets to residual. */ - ADV_PADDR sense_addr; + __le32 sense_addr; ADV_PADDR carr_pa; uchar mflag; uchar sense_len; @@ -6084,6 +6084,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) adv_sgblk_t *sgblkp; struct scsi_cmnd *scp; ADV_DCNT resid_cnt; + dma_addr_t sense_addr; ASC_DBG(1, "adv_dvc_varp 0x%p, scsiqp 0x%p\n", adv_dvc_varp, scsiqp); @@ -6121,6 +6122,10 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) ASC_STATS(boardp->shost, callback); ASC_DBG(1, "shost 0x%p\n", boardp->shost); + sense_addr = le32_to_cpu(scsiqp->sense_addr); + dma_unmap_single(boardp->dev, sense_addr, + SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE); + /* * 'done_status' contains the command's ending status. */ @@ -8018,9 +8023,9 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, u32 srb_tag = scp->request->tag; adv_req_t *reqp; ADV_SCSI_REQ_Q *scsiqp; - int i; int ret; int use_sg; + dma_addr_t sense_addr; /* * Allocate an adv_req_t structure from the board to execute @@ -8061,19 +8066,21 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, /* Set CDB length and copy it to the request structure. */ scsiqp->cdb_len = scp->cmd_len; /* Copy first 12 CDB bytes to cdb[]. */ - for (i = 0; i < scp->cmd_len && i < 12; i++) { - scsiqp->cdb[i] = scp->cmnd[i]; - } + memcpy(scsiqp->cdb, scp->cmnd, scp->cmd_len < 12 ? scp->cmd_len : 12); /* Copy last 4 CDB bytes, if present, to cdb16[]. */ - for (; i < scp->cmd_len; i++) { - scsiqp->cdb16[i - 12] = scp->cmnd[i]; + if (scp->cmd_len > 12) { + int cdb16_len = scp->cmd_len - 12; + + memcpy(scsiqp->cdb16, &scp->cmnd[12], cdb16_len); } scsiqp->target_id = scp->device->id; scsiqp->target_lun = scp->device->lun; - scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - scsiqp->sense_len = SCSI_SENSE_BUFFERSIZE; + sense_addr = dma_map_single(boardp->dev, scp->sense_buffer, + SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE); + scsiqp->sense_addr = cpu_to_le32(sense_addr); + scsiqp->sense_len = cpu_to_le32(SCSI_SENSE_BUFFERSIZE); /* Build ADV_SCSI_REQ_Q */ |
