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Use resid field of CTIO to detect under/overruns.

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MFC after:	2 weeks
This commit is contained in:
Alexander Motin 2017-02-26 12:54:27 +00:00
parent a6036a44fd
commit 15b2cdedca
1 changed files with 4 additions and 3 deletions
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7
sys/cam/ctl/scsi_ctl.c
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@ -1253,7 +1253,8 @@ ctlfedone(struct cam_periph *periph, union ccb *done_ccb)
*/
switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) {
case CAM_REQ_CMP:
io->scsiio.kern_data_resid -= csio->dxfer_len;
io->scsiio.kern_data_resid -=
csio->dxfer_len - csio->resid;
io->io_hdr.port_status = 0;
break;
default:
@ -1280,8 +1281,8 @@ ctlfedone(struct cam_periph *periph, union ccb *done_ccb)
* pieces, figure out where we are in the list, and
* continue sending pieces if necessary.
*/
if ((cmd_info->flags & CTLFE_CMD_PIECEWISE)
&& (io->io_hdr.port_status == 0)) {
if ((cmd_info->flags & CTLFE_CMD_PIECEWISE) &&
io->io_hdr.port_status == 0 && csio->resid == 0) {
ccb_flags flags;
uint8_t *data_ptr;
uint32_t dxfer_len;