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[SCSI] qla2xxx: Correct discrepancies during OVERRUN handling on FWI2-capable cards. 

For recent ISPs, software must detect OVERRUN conditions by
checking the SS_RESIDUAL_OVER bit during CS_COMPLETE handling.
Update the driver to perform this check, which is consistent with
what earlier firmwares did by explicitly cracking open the
FCP_RSP statuses and returning an CS_DATA_OVERRUN.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Andrew Vasquez 2008-02-28 14:06:10 -08:00 committed by James Bottomley
parent 7c7f1f299b
commit 3e8ce320cf
1 changed files with 5 additions and 0 deletions
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5
drivers/scsi/qla2xxx/qla_isr.c
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@ -958,6 +958,11 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
}
}
/* Check for overrun. */
if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
scsi_status & SS_RESIDUAL_OVER)
comp_status = CS_DATA_OVERRUN;
/*
* Based on Host and scsi status generate status code for Linux
*/