Author: mav
Date: Sun Feb 26 19:23:03 2017
New Revision: 314307
URL: https://svnweb.freebsd.org/changeset/base/314307
Log:
Add support for SIMs without autosense.
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
Modified:
head/sys/cam/ctl/scsi_ctl.c
Modified: head/sys/cam/ctl/scsi_ctl.c
==============================================================================
--- head/sys/cam/ctl/scsi_ctl.c Sun Feb 26 19:00:55 2017 (r314306)
+++ head/sys/cam/ctl/scsi_ctl.c Sun Feb 26 19:23:03 2017 (r314307)
@@ -1223,6 +1223,20 @@ ctlfedone(struct cam_periph *periph, uni
* 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) {
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