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yaml
---
r: 68835
b: refs/heads/master
c: a43e6bd
h: refs/heads/master
i:
  68833: 96896c5
  68831: ccf39b1
v: v3
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FUJITA Tomonori authored and James Bottomley committed Oct 12, 2007
1 parent c5cd889 commit 63e2b71
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Showing 2 changed files with 16 additions and 27 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 4bd6d7f35661a32ed50b72f02b684f894feeaa48
refs/heads/master: a43e6bd1be17573b4f9489190d440677bcb300f6
41 changes: 15 additions & 26 deletions trunk/drivers/fc4/fc.c
Original file line number Diff line number Diff line change
Expand Up @@ -427,15 +427,10 @@ static inline void fcp_scsi_receive(fc_channel *fc, int token, int status, fc_hd
memcpy(SCpnt->sense_buffer, ((char *)(rsp+1)), sense_len);
}

if (fcmd->data) {
if (SCpnt->use_sg)
dma_unmap_sg(fc->dev, (struct scatterlist *)SCpnt->request_buffer,
SCpnt->use_sg,
SCpnt->sc_data_direction);
else
dma_unmap_single(fc->dev, fcmd->data, SCpnt->request_bufflen,
SCpnt->sc_data_direction);
}
if (fcmd->data)
dma_unmap_sg(fc->dev, scsi_sglist(SCpnt),
scsi_sg_count(SCpnt),
SCpnt->sc_data_direction);
break;
default:
host_status=DID_ERROR; /* FIXME */
Expand Down Expand Up @@ -793,10 +788,14 @@ static int fcp_scsi_queue_it(fc_channel *fc, struct scsi_cmnd *SCpnt,
fcp_cntl = FCP_CNTL_QTYPE_SIMPLE;
} else
fcp_cntl = FCP_CNTL_QTYPE_UNTAGGED;
if (!SCpnt->request_bufflen && !SCpnt->use_sg) {

if (!scsi_bufflen(SCpnt)) {
cmd->fcp_cntl = fcp_cntl;
fcmd->data = (dma_addr_t)NULL;
} else {
struct scatterlist *sg;
int nents;

switch (SCpnt->cmnd[0]) {
case WRITE_6:
case WRITE_10:
Expand All @@ -805,22 +804,12 @@ static int fcp_scsi_queue_it(fc_channel *fc, struct scsi_cmnd *SCpnt,
default:
cmd->fcp_cntl = (FCP_CNTL_READ | fcp_cntl); break;
}
if (!SCpnt->use_sg) {
cmd->fcp_data_len = SCpnt->request_bufflen;
fcmd->data = dma_map_single (fc->dev, (char *)SCpnt->request_buffer,
SCpnt->request_bufflen,
SCpnt->sc_data_direction);
} else {
struct scatterlist *sg = (struct scatterlist *)SCpnt->request_buffer;
int nents;

FCD(("XXX: Use_sg %d %d\n", SCpnt->use_sg, sg->length))
nents = dma_map_sg (fc->dev, sg, SCpnt->use_sg,
SCpnt->sc_data_direction);
if (nents > 1) printk ("%s: SG for nents %d (use_sg %d) not handled yet\n", fc->name, nents, SCpnt->use_sg);
fcmd->data = sg_dma_address(sg);
cmd->fcp_data_len = sg_dma_len(sg);
}

sg = scsi_sglist(SCpnt);
nents = dma_map_sg(fc->dev, sg, scsi_sg_count(SCpnt),
SCpnt->sc_data_direction);
fcmd->data = sg_dma_address(sg);
cmd->fcp_data_len = sg_dma_len(sg);
}
memcpy (cmd->fcp_cdb, SCpnt->cmnd, SCpnt->cmd_len);
memset (cmd->fcp_cdb+SCpnt->cmd_len, 0, sizeof(cmd->fcp_cdb)-SCpnt->cmd_len);
Expand Down

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