struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl;
IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
- uint32_t vpi = (lpfc_cmd->cur_iocbq.vport
- ? lpfc_cmd->cur_iocbq.vport->vpi
- : 0);
dma_addr_t physaddr;
uint32_t i, num_bde = 0;
- int datadir = scsi_cmnd->sc_data_direction;
- int dma_error;
+ int nseg, datadir = scsi_cmnd->sc_data_direction;
/*
* There are three possibilities here - use scatter-gather segment, use
* data bde entry.
*/
bpl += 2;
- if (scsi_cmnd->use_sg) {
+ nseg = scsi_dma_map(scsi_cmnd);
+ if (nseg > 0) {
/*
* The driver stores the segment count returned from pci_map_sg
* because this a count of dma-mappings used to map the use_sg
* pages. They are not guaranteed to be the same for those
* architectures that implement an IOMMU.
*/
- sgel = (struct scatterlist *)scsi_cmnd->request_buffer;
- lpfc_cmd->seg_cnt = dma_map_sg(&phba->pcidev->dev, sgel,
- scsi_cmnd->use_sg, datadir);
- if (lpfc_cmd->seg_cnt == 0)
- return 1;
+ lpfc_cmd->seg_cnt = nseg;
if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
printk(KERN_ERR "%s: Too many sg segments from "
"dma_map_sg. Config %d, seg_cnt %d",
__FUNCTION__, phba->cfg_sg_seg_cnt,
lpfc_cmd->seg_cnt);
- dma_unmap_sg(&phba->pcidev->dev, sgel,
- lpfc_cmd->seg_cnt, datadir);
+ scsi_dma_unmap(scsi_cmnd);
return 1;
}
* single scsi command. Just run through the seg_cnt and format
* the bde's.
*/
- for (i = 0; i < lpfc_cmd->seg_cnt; i++) {
+ scsi_for_each_sg(scsi_cmnd, sgel, nseg, i) {
physaddr = sg_dma_address(sgel);
bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr));
bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
bpl->tus.f.bdeFlags = BUFF_USE_RCV;
bpl->tus.w = le32_to_cpu(bpl->tus.w);
bpl++;
- sgel++;
num_bde++;
}
- } else if (scsi_cmnd->request_buffer && scsi_cmnd->request_bufflen) {
- physaddr = dma_map_single(&phba->pcidev->dev,
- scsi_cmnd->request_buffer,
- scsi_cmnd->request_bufflen,
- datadir);
- dma_error = dma_mapping_error(physaddr);
- if (dma_error) {
- lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
- "%d (%d):0718 Unable to dma_map_single "
- "request_buffer: x%x\n",
- phba->brd_no, vpi, dma_error);
- return 1;
- }
-
- lpfc_cmd->nonsg_phys = physaddr;
- bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr));
- bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
- bpl->tus.f.bdeSize = scsi_cmnd->request_bufflen;
- if (datadir == DMA_TO_DEVICE)
- bpl->tus.f.bdeFlags = 0;
- else
- bpl->tus.f.bdeFlags = BUFF_USE_RCV;
- bpl->tus.w = le32_to_cpu(bpl->tus.w);
- num_bde = 1;
- bpl++;
- }
+ } else if (nseg < 0)
+ return 1;
/*
* Finish initializing those IOCB fields that are dependent on the
(num_bde * sizeof (struct ulp_bde64));
iocb_cmd->ulpBdeCount = 1;
iocb_cmd->ulpLe = 1;
- fcp_cmnd->fcpDl = be32_to_cpu(scsi_cmnd->request_bufflen);
+ fcp_cmnd->fcpDl = be32_to_cpu(scsi_bufflen(scsi_cmnd));
return 0;
}
* a request buffer, but did not request use_sg. There is a third
* case, but it does not require resource deallocation.
*/
- if ((psb->seg_cnt > 0) && (psb->pCmd->use_sg)) {
- dma_unmap_sg(&phba->pcidev->dev, psb->pCmd->request_buffer,
- psb->seg_cnt, psb->pCmd->sc_data_direction);
- } else {
- if ((psb->nonsg_phys) && (psb->pCmd->request_bufflen)) {
- dma_unmap_single(&phba->pcidev->dev, psb->nonsg_phys,
- psb->pCmd->request_bufflen,
- psb->pCmd->sc_data_direction);
- }
- }
+ if (psb->seg_cnt > 0)
+ scsi_dma_unmap(psb->pCmd);
}
static void
}
}
- cmnd->resid = 0;
+ scsi_set_resid(cmnd, 0);
if (resp_info & RESID_UNDER) {
- cmnd->resid = be32_to_cpu(fcprsp->rspResId);
+ scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId));
lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
"%d (%d):0716 FCP Read Underrun, expected %d, "
"residual %d Data: x%x x%x x%x\n",
phba->brd_no, vpi, be32_to_cpu(fcpcmd->fcpDl),
- cmnd->resid, fcpi_parm, cmnd->cmnd[0],
+ scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0],
cmnd->underflow);
/*
*/
if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) &&
fcpi_parm &&
- (cmnd->resid != fcpi_parm)) {
+ (scsi_get_resid(cmnd) != fcpi_parm)) {
lpfc_printf_log(phba, KERN_WARNING,
LOG_FCP | LOG_FCP_ERROR,
"%d (%d):0735 FCP Read Check Error "
"and Underrun Data: x%x x%x x%x x%x\n",
phba->brd_no, vpi,
be32_to_cpu(fcpcmd->fcpDl),
- cmnd->resid, fcpi_parm, cmnd->cmnd[0]);
- cmnd->resid = cmnd->request_bufflen;
+ scsi_get_resid(cmnd), fcpi_parm,
+ cmnd->cmnd[0]);
+ scsi_set_resid(cmnd, scsi_bufflen(cmnd));
host_status = DID_ERROR;
}
/*
*/
if (!(resp_info & SNS_LEN_VALID) &&
(scsi_status == SAM_STAT_GOOD) &&
- (cmnd->request_bufflen - cmnd->resid) < cmnd->underflow) {
+ (scsi_bufflen(cmnd) - scsi_get_resid(cmnd)
+ < cmnd->underflow)) {
lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
"%d (%d):0717 FCP command x%x residual "
"underrun converted to error "
"Data: x%x x%x x%x\n",
phba->brd_no, vpi, cmnd->cmnd[0],
- cmnd->request_bufflen, cmnd->resid,
- cmnd->underflow);
-
+ cmnd->request_bufflen,
+ scsi_get_resid(cmnd), cmnd->underflow);
host_status = DID_ERROR;
}
} else if (resp_info & RESID_OVER) {
"%d (%d):0720 FCP command x%x residual "
"overrun error. Data: x%x x%x \n",
phba->brd_no, vpi, cmnd->cmnd[0],
- cmnd->request_bufflen, cmnd->resid);
+ scsi_bufflen(cmnd), scsi_get_resid(cmnd));
host_status = DID_ERROR;
/*
be32_to_cpu(fcprsp->rspResId),
fcpi_parm, cmnd->cmnd[0]);
host_status = DID_ERROR;
- cmnd->resid = cmnd->request_bufflen;
+ scsi_set_resid(cmnd, scsi_bufflen(cmnd));
}
out:
"x%x SNS x%x x%x Data: x%x x%x\n",
phba->brd_no, vpi, cmd->device->id,
cmd->device->lun, cmd, cmd->result,
- *lp, *(lp + 3), cmd->retries, cmd->resid);
+ *lp, *(lp + 3), cmd->retries,
+ scsi_get_resid(cmd));
}
result = cmd->result;
* bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first
* data bde entry.
*/
- if (scsi_cmnd->use_sg) {
- if (datadir == DMA_TO_DEVICE) {
- iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR;
- iocb_cmd->un.fcpi.fcpi_parm = 0;
- iocb_cmd->ulpPU = 0;
- fcp_cmnd->fcpCntl3 = WRITE_DATA;
- phba->fc4OutputRequests++;
- } else {
- iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR;
- iocb_cmd->ulpPU = PARM_READ_CHECK;
- iocb_cmd->un.fcpi.fcpi_parm =
- scsi_cmnd->request_bufflen;
- fcp_cmnd->fcpCntl3 = READ_DATA;
- phba->fc4InputRequests++;
- }
- } else if (scsi_cmnd->request_buffer && scsi_cmnd->request_bufflen) {
+ if (scsi_sg_count(scsi_cmnd)) {
if (datadir == DMA_TO_DEVICE) {
iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR;
iocb_cmd->un.fcpi.fcpi_parm = 0;
} else {
iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR;
iocb_cmd->ulpPU = PARM_READ_CHECK;
- iocb_cmd->un.fcpi.fcpi_parm =
- scsi_cmnd->request_bufflen;
+ iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd);
fcp_cmnd->fcpCntl3 = READ_DATA;
phba->fc4InputRequests++;
}
projects / linux-beck.git / commitdiff