From 1d12d98d284665c37b75b9538916b5fbb8fcde37 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 20 Jan 2006 01:05:00 +0100 Subject: [SCSI] dc395x: "fix" virt_addr calculation on AUTO_REQSENSE The patch below "fixes" calculation of the virt_addr for the AUTO_REQSENSE case. I put "fixes" in quotes because the real fix would be to completely remove it, but that's beyond the scope of this patch. Signed-off-by: Guennadi Liakhovetski Signed-off-by: James Bottomley --- drivers/scsi/dc395x.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index c8a32cf47d73..cbf825263f3b 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -246,6 +246,7 @@ struct ScsiReqBlk { * total_xfer_length in xferred. These values are restored in * pci_unmap_srb_sense. This is the only place xferred is used. */ + unsigned char *virt_addr_req; /* Saved virtual address of the request buffer */ u32 xferred; /* Saved copy of total_xfer_length */ u16 state; @@ -2017,7 +2018,7 @@ static void sg_update_list(struct ScsiReqBlk *srb, u32 left) sg_verify_length(srb); /* we need the corresponding virtual address */ - if (!segment) { + if (!segment || (srb->flag & AUTO_REQSENSE)) { srb->virt_addr += xferred; return; } @@ -3318,6 +3319,7 @@ static void pci_unmap_srb_sense(struct AdapterCtlBlk *acb, srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].address; srb->segment_x[0].length = srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].length; + srb->virt_addr = srb->virt_addr_req; } @@ -3711,6 +3713,8 @@ static void request_sense(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb, srb->xferred = srb->total_xfer_length; /* srb->segment_x : a one entry of S/G list table */ srb->total_xfer_length = sizeof(cmd->sense_buffer); + srb->virt_addr_req = srb->virt_addr; + srb->virt_addr = cmd->sense_buffer; srb->segment_x[0].length = sizeof(cmd->sense_buffer); /* Map sense buffer */ srb->segment_x[0].address = -- cgit v1.2.2