svn commit: r293920 - stable/10/sys/dev/sfxge/common

[Andrew Rybchenko]

Author: arybchik
Date: Thu Jan 14 14:08:57 2016
New Revision: 293920
URL: https://svnweb.freebsd.org/changeset/base/293920

Log:
  MFC r291394
  
  sfxge: unlink PIO buffers from VIs in WC mapping in hunt_nic_fini()
  
  PIO is not yet supported in the FreeBSD driver.
  
  Submitted by:   Andy Moreton <amoreton at solarflare.com>
  Sponsored by:   Solarflare Communications, Inc.

Modified:
  stable/10/sys/dev/sfxge/common/hunt_nic.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/dev/sfxge/common/hunt_nic.c
==============================================================================
--- stable/10/sys/dev/sfxge/common/hunt_nic.c	Thu Jan 14 14:08:13 2016	(r293919)
+++ stable/10/sys/dev/sfxge/common/hunt_nic.c	Thu Jan 14 14:08:57 2016	(r293920)
@@ -1709,10 +1709,22 @@ fail1:
 hunt_nic_fini(
 	__in		efx_nic_t *enp)
 {
+	uint32_t i;
+	int rc;
+
 	(void) efx_mcdi_vadaptor_free(enp, enp->en_vport_id);
 	enp->en_vport_id = 0;
 
-	/* FIXME: do we need to unlink piobufs ? */
+	/* Unlink piobufs from extra VIs in WC mapping */
+	if (enp->en_u.hunt.enu_piobuf_count > 0) {
+		for (i = 0; i < enp->en_u.hunt.enu_piobuf_count; i++) {
+			rc = efx_mcdi_unlink_piobuf(enp,
+			    enp->en_u.hunt.enu_pio_write_vi_base + i);
+			if (rc != 0)
+				break;
+		}
+	}
+
 	hunt_nic_free_piobufs(enp);
 
 	(void) efx_mcdi_free_vis(enp);