svn commit: r353584 - stable/12/sys/cam/scsi

[Alexander Motin]

Author: mav
Date: Tue Oct 15 18:47:06 2019
New Revision: 353584
URL: https://svnweb.freebsd.org/changeset/base/353584

Log:
  MFC r352743: Add kern.cam.da.X.quirks tunable, similar existing for ada.
  
  Submitted by:	Michael Lass
  Differential Revision:	https://reviews.freebsd.org/D20677

Modified:
  stable/12/sys/cam/scsi/scsi_da.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/cam/scsi/scsi_da.c
==============================================================================
--- stable/12/sys/cam/scsi/scsi_da.c	Tue Oct 15 18:44:50 2019	(r353583)
+++ stable/12/sys/cam/scsi/scsi_da.c	Tue Oct 15 18:47:06 2019	(r353584)
@@ -2679,6 +2679,7 @@ daregister(struct cam_periph *periph, void *arg)
 	struct ccb_getdev *cgd;
 	char tmpstr[80];
 	caddr_t match;
+	int quirks;
 
 	cgd = (struct ccb_getdev *)arg;
 	if (cgd == NULL) {
@@ -2734,6 +2735,13 @@ daregister(struct cam_periph *periph, void *arg)
 	xpt_path_inq(&cpi, periph->path);
 	if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
 		softc->quirks |= DA_Q_NO_6_BYTE;
+
+	/* Override quirks if tunable is set */
+	snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.quirks",
+		 periph->unit_number);
+	quirks = softc->quirks;
+	TUNABLE_INT_FETCH(tmpstr, &quirks);
+	softc->quirks = quirks;
 
 	if (SID_TYPE(&cgd->inq_data) == T_ZBC_HM)
 		softc->zone_mode = DA_ZONE_HOST_MANAGED;