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Properly handle transfers that only consume partial buffers.

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This commit is contained in:
Justin T. Gibbs 1999-01-14 05:57:32 +00:00
parent b54ee7dda4
commit 443af83864
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=42648
1 changed files with 10 additions and 6 deletions
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16
sys/cam/scsi/scsi_target.c
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@ -1,7 +1,7 @@
/*
* Implementation of a simple Target Mode SCSI Proccessor Target driver for CAM.
*
* Copyright (c) 1998 Justin T. Gibbs.
* Copyright (c) 1998, 1999 Justin T. Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -25,7 +25,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: scsi_target.c,v 1.5 1998/12/15 08:15:15 gibbs Exp $
* $Id: scsi_target.c,v 1.6 1998/12/17 00:03:14 gibbs Exp $
*/
#include <stddef.h> /* For offsetof */
@ -1439,16 +1439,20 @@ targdone(struct cam_periph *periph, union ccb *done_ccb)
break;
}
if (desc->bp != NULL)
panic("targ%d: desc->bp should be NULL",
periph->unit_number);
/* Queue us up for another buffer */
if (atio->cdb_io.cdb_bytes[0] == SEND) {
if (desc->bp != NULL)
TAILQ_INSERT_HEAD(
&softc->snd_buf_queue.queue,
bp, b_act);
TAILQ_INSERT_HEAD(&softc->snd_ccb_queue,
&atio->ccb_h,
periph_links.tqe);
} else {
if (desc->bp != NULL)
TAILQ_INSERT_HEAD(
&softc->rcv_buf_queue.queue,
bp, b_act);
TAILQ_INSERT_HEAD(&softc->rcv_ccb_queue,
&atio->ccb_h,
periph_links.tqe);