svn commit: r291394 - head/sys/dev/sfxge/common

[Andrew Rybchenko]

Author: arybchik
Date: Fri Nov 27 16:07:20 2015
New Revision: 291394
URL: https://svnweb.freebsd.org/changeset/base/291394

Log:
  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.
  MFC after:      2 days

Modified:
  head/sys/dev/sfxge/common/hunt_nic.c

Modified: head/sys/dev/sfxge/common/hunt_nic.c
==============================================================================
--- head/sys/dev/sfxge/common/hunt_nic.c	Fri Nov 27 16:03:51 2015	(r291393)
+++ head/sys/dev/sfxge/common/hunt_nic.c	Fri Nov 27 16:07:20 2015	(r291394)
@@ -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);