Author: mav
Date: Sat Aug 8 11:22:45 2015
New Revision: 286447
URL: https://svnweb.freebsd.org/changeset/base/286447
Log:
Don't panic if disk lost TRIM support due to switching to PIO mode.
MFC after: 1 week
Modified:
head/sys/cam/ata/ata_da.c
Modified: head/sys/cam/ata/ata_da.c
==============================================================================
--- head/sys/cam/ata/ata_da.c Sat Aug 8 10:38:37 2015 (r286446)
+++ head/sys/cam/ata/ata_da.c Sat Aug 8 11:22:45 2015 (r286447)
@@ -767,10 +767,6 @@ adastrategy(struct bio *bp)
* Place it in the queue of disk activities for this disk
*/
if (bp->bio_cmd == BIO_DELETE) {
- KASSERT((softc->flags & ADA_FLAG_CAN_TRIM) ||
- ((softc->flags & ADA_FLAG_CAN_CFA) &&
- !(softc->flags & ADA_FLAG_CAN_48BIT)),
- ("BIO_DELETE but no supported TRIM method."));
bioq_disksort(&softc->trim_queue, bp);
} else {
if (ADA_SIO)
@@ -1544,7 +1540,14 @@ adastart(struct cam_periph *periph, unio
!(softc->flags & ADA_FLAG_CAN_48BIT)) {
ada_cfaerase(softc, bp, ataio);
} else {
- panic("adastart: BIO_DELETE without method, not
possible.");
+ /* This can happen if DMA was disabled. */
+ bioq_remove(&softc->trim_queue, bp);
+ bp->bio_error = EOPNOTSUPP;
+ bp->bio_flags |= BIO_ERROR;
+ biodone(bp);
+ xpt_release_ccb(start_ccb);
+ adaschedule(periph);
+ return;
}
softc->trim_running = 1;
start_ccb->ccb_h.ccb_state = ADA_CCB_TRIM;
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