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Add support for SIMs without autosense.

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If we asked to send sense data by setting CAM_SEND_SENSE, but SIM didn't
confirm transmission by setting CAM_SENT_SENSE, assume it was not sent.
Queue the I/O back to CTL for later REQUEST SENSE with ctl_queue_sense().
This is needed for error reporting on SPI HBAs like ahc(4)/ahd(4).

MFC after:	2 weeks
This commit is contained in:
mav 2017-02-26 19:23:03 +00:00
parent 427bf4fd96
commit fefece3ea9
1 changed files with 14 additions and 0 deletions
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14
sys/cam/ctl/scsi_ctl.c
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@ -1223,6 +1223,20 @@ ctlfedone(struct cam_periph *periph, union ccb *done_ccb)
* datamove done routine.
*/
if ((io->io_hdr.flags & CTL_FLAG_DMA_INPROG) == 0) {
/*
* If we asked to send sense data but it wasn't sent,
* queue the I/O back to CTL for later REQUEST SENSE.
*/
if ((done_ccb->ccb_h.flags & CAM_SEND_SENSE) != 0 &&
(done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP &&
(done_ccb->ccb_h.status & CAM_SENT_SENSE) == 0 &&
(io = ctl_alloc_io_nowait(bus_softc->port.ctl_pool_ref)) != NULL) {
PRIV_INFO(io) = PRIV_INFO(
(union ctl_io *)atio->ccb_h.io_ptr);
ctl_queue_sense(atio->ccb_h.io_ptr);
atio->ccb_h.io_ptr = io;
}
/* Abort ATIO if CTIO sending status has failed. */
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) !=
CAM_REQ_CMP) {