svn commit: r333015 - head/sys/net
Hans Petter Selasky
hselasky at FreeBSD.org
Thu Apr 26 08:58:28 UTC 2018
Author: hselasky
Date: Thu Apr 26 08:58:27 2018
New Revision: 333015
URL: https://svnweb.freebsd.org/changeset/base/333015
Log:
Add network device event for priority code point, PCP, changes.
When the PCP is changed for either a VLAN network interface or when
prio tagging is enabled for a regular ethernet network interface,
broadcast the IFNET_EVENT_PCP event so applications like ibcore can
update its GID tables accordingly.
MFC after: 3 days
Reviewed by: ae, kib
Differential Revision: https://reviews.freebsd.org/D15040
Sponsored by: Mellanox Technologies
Modified:
head/sys/net/if_ethersubr.c
head/sys/net/if_var.h
head/sys/net/if_vlan.c
Modified: head/sys/net/if_ethersubr.c
==============================================================================
--- head/sys/net/if_ethersubr.c Thu Apr 26 05:21:00 2018 (r333014)
+++ head/sys/net/if_ethersubr.c Thu Apr 26 08:58:27 2018 (r333015)
@@ -1128,10 +1128,13 @@ ether_ioctl(struct ifnet *ifp, u_long command, caddr_t
if (error != 0)
break;
if (ifr->ifr_lan_pcp > 7 &&
- ifr->ifr_lan_pcp != IFNET_PCP_NONE)
+ ifr->ifr_lan_pcp != IFNET_PCP_NONE) {
error = EINVAL;
- else
+ } else {
ifp->if_pcp = ifr->ifr_lan_pcp;
+ /* broadcast event about PCP change */
+ EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_PCP);
+ }
break;
case SIOCGLANPCP:
Modified: head/sys/net/if_var.h
==============================================================================
--- head/sys/net/if_var.h Thu Apr 26 05:21:00 2018 (r333014)
+++ head/sys/net/if_var.h Thu Apr 26 08:58:27 2018 (r333015)
@@ -421,6 +421,8 @@ EVENTHANDLER_DECLARE(ifnet_link_event, ifnet_link_even
/* Interface up/down event */
#define IFNET_EVENT_UP 0
#define IFNET_EVENT_DOWN 1
+#define IFNET_EVENT_PCP 2 /* priority code point, PCP */
+
typedef void (*ifnet_event_fn)(void *, struct ifnet *ifp, int event);
EVENTHANDLER_DECLARE(ifnet_event, ifnet_event_fn);
#endif /* _SYS_EVENTHANDLER_H_ */
Modified: head/sys/net/if_vlan.c
==============================================================================
--- head/sys/net/if_vlan.c Thu Apr 26 05:21:00 2018 (r333014)
+++ head/sys/net/if_vlan.c Thu Apr 26 08:58:27 2018 (r333015)
@@ -1947,6 +1947,8 @@ vlan_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data
}
ifv->ifv_pcp = ifr->ifr_vlan_pcp;
vlan_tag_recalculate(ifv);
+ /* broadcast event about PCP change */
+ EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_PCP);
break;
case SIOCSIFCAP:
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