diff options
| author | Boaz Harrosh <bharrosh@panasas.com> | 2007-11-05 11:21:40 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-11 18:22:39 -0600 |
| commit | 9a3dd65bafcfa3338cfb4b6b7e12ff59aca0ac28 (patch) | |
| tree | c48e89bac733c362ab2526ffdf61b5965071c3c1 /drivers/scsi | |
| parent | fe7ed98fd49a28287aca8b0ba8da8fb9ca35a055 (diff) | |
[SCSI] wd7000: proper fix for boards without sg support
- code used to set sg_tablesize to zero for board revision
less than 6. This is no longer supported, therefore I
use sg_tablesize=1 and open code the sg handling for that case.
- Get rid of use of SG_NONE which will be removed soon.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/wd7000.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c index 03cd44f231d..b4304ae7852 100644 --- a/drivers/scsi/wd7000.c +++ b/drivers/scsi/wd7000.c @@ -1108,13 +1108,10 @@ static int wd7000_queuecommand(struct scsi_cmnd *SCpnt, scb->host = host; nseg = scsi_sg_count(SCpnt); - if (nseg) { + if (nseg > 1) { struct scatterlist *sg; unsigned i; - if (SCpnt->device->host->sg_tablesize == SG_NONE) { - panic("wd7000_queuecommand: scatter/gather not supported.\n"); - } dprintk("Using scatter/gather with %d elements.\n", nseg); sgb = scb->sgb; @@ -1128,7 +1125,10 @@ static int wd7000_queuecommand(struct scsi_cmnd *SCpnt, } } else { scb->op = 0; - any2scsi(scb->dataptr, isa_virt_to_bus(scsi_sglist(SCpnt))); + if (nseg) { + struct scatterlist *sg = scsi_sglist(SCpnt); + any2scsi(scb->dataptr, isa_page_to_bus(sg_page(sg)) + sg->offset); + } any2scsi(scb->maxlen, scsi_bufflen(SCpnt)); } @@ -1524,7 +1524,7 @@ static __init int wd7000_detect(struct scsi_host_template *tpnt) * For boards before rev 6.0, scatter/gather isn't supported. */ if (host->rev1 < 6) - sh->sg_tablesize = SG_NONE; + sh->sg_tablesize = 1; present++; /* count it */ |