diff options
| author | Dave C Boutcher <sleddog@us.ibm.com> | 2005-09-13 10:09:02 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-09-13 10:15:10 -0500 |
| commit | 154fb614df83086ceb18a2c19908154e78d4dc98 (patch) | |
| tree | 4db0b4124cc635d4eadc245ea4716d13ec5d293b /drivers/scsi/ibmvscsi | |
| parent | 1c5363153dc7ae694404e7732b4ce36eecc94ca7 (diff) | |
| download | linux-154fb614df83086ceb18a2c19908154e78d4dc98.tar.gz | |
[SCSI] ibmvscsi compatibility fix
Linda Xie ever so gently pointed out that she had a patch to preserve compatibility with older SLES targets, and I told her we didn't need to push it to mainline. This patch explicitly checks the version of the IBMVSCSI target and ensures that large scatterlists are not sent to older targets. Signed-off-by: Linda Xie <lxie@us.ibm.com> Signed-off-by: Dave Boutcher <boutcher@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/ibmvscsi')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvscsi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 5b14934ba861..ff25210b00ba 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -727,6 +727,16 @@ static void adapter_info_rsp(struct srp_event_struct *evt_struct) if (hostdata->madapter_info.port_max_txu[0]) hostdata->host->max_sectors = hostdata->madapter_info.port_max_txu[0] >> 9; + + if (hostdata->madapter_info.os_type == 3 && + strcmp(hostdata->madapter_info.srp_version, "1.6a") <= 0) { + printk("ibmvscsi: host (Ver. %s) doesn't support large" + "transfers\n", + hostdata->madapter_info.srp_version); + printk("ibmvscsi: limiting scatterlists to %d\n", + MAX_INDIRECT_BUFS); + hostdata->host->sg_tablesize = MAX_INDIRECT_BUFS; + } } } |