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etherswitch: Fix RT305x vlan group operation

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Fix an issue which prevents proper operation (addition/removal of members)
of RT305x vlan groups.

Tested by:	yamori813@yahoo.co.jp

Submitted by:	yamori813@yahoo.co.jp (initial version)
Reviewed by:	adrian
Differential Revision:	https://reviews.freebsd.org/D9607
This commit is contained in:
Stanislav Galabov 2017-02-20 08:10:41 +00:00
parent c2863c0a7e
commit 31735ccf8a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=313988
1 changed files with 30 additions and 3 deletions
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33
sys/dev/etherswitch/mtkswitch/mtkswitch_rt3050.c
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@ -405,11 +405,38 @@ mtkswitch_vlan_setvgroup(struct mtkswitch_softc *sc, etherswitch_vlangroup_t *v)
MTKSWITCH_LOCK(sc);
/* First, see if we can accomodate the request at all */
val = MTKSWITCH_READ(sc, MTKSWITCH_POC2);
if ((val & POC2_UNTAG_VLAN) == 0 ||
sc->sc_switchtype == MTK_SWITCH_RT3050) {
if (sc->sc_switchtype == MTK_SWITCH_RT3050 ||
(val & POC2_UNTAG_VLAN) == 0) {
/*
* There are 2 things we can't support in per-port untagging
* mode:
* 1. Adding a port as an untagged member if the port is not
* set up to do untagging.
* 2. Adding a port as a tagged member if the port is set up
* to do untagging.
*/
val &= VUB_MASK;
/* get all untagged members from the member list */
tmp = v->es_untagged_ports & v->es_member_ports;
if (val != tmp) {
/* fail if untagged members are not a subset of all members */
if (tmp != v->es_untagged_ports) {
/* Cannot accomodate request */
MTKSWITCH_UNLOCK(sc);
return (ENOTSUP);
}
/* fail if any untagged member is set up to do tagging */
if ((tmp & val) != tmp) {
/* Cannot accomodate request */
MTKSWITCH_UNLOCK(sc);
return (ENOTSUP);
}
/* now, get the list of all tagged members */
tmp = v->es_member_ports & ~tmp;
/* fail if any tagged member is set up to do untagging */
if ((tmp & val) != 0) {
/* Cannot accomodate request */
MTKSWITCH_UNLOCK(sc);
return (ENOTSUP);