Author: adrian
Date: Sat Dec 9 23:16:02 2017
New Revision: 326737
URL: https://svnweb.freebsd.org/changeset/base/326737
Log:
[net80211] add a method for checking if a VAP WME AC has a NOACK policy or
not.
A subsequent set of commits will introduce this instead of a whole lot of
gymnastics to check the WME category.
Modified:
head/sys/net80211/ieee80211_proto.c
head/sys/net80211/ieee80211_proto.h
Modified: head/sys/net80211/ieee80211_proto.c
==============================================================================
--- head/sys/net80211/ieee80211_proto.c Sat Dec 9 21:55:19 2017
(r326736)
+++ head/sys/net80211/ieee80211_proto.c Sat Dec 9 23:16:02 2017
(r326737)
@@ -1308,6 +1308,12 @@ ieee80211_wme_updateparams(struct ieee80211vap *vap)
}
}
+/*
+ * Fetch the WME parameters for the given VAP.
+ *
+ * When net80211 grows p2p, etc support, this may return different
+ * parameters for each VAP.
+ */
void
ieee80211_wme_vap_getparams(struct ieee80211vap *vap, struct chanAccParams *wp)
{
@@ -1315,11 +1321,37 @@ ieee80211_wme_vap_getparams(struct ieee80211vap *vap,
memcpy(wp, &vap->iv_ic->ic_wme.wme_chanParams, sizeof(*wp));
}
+/*
+ * For NICs which only support one set of WME paramaters (ie, softmac NICs)
+ * there may be different VAP WME parameters but only one is "active".
+ * This returns the "NIC" WME parameters for the currently active
+ * context.
+ */
void
ieee80211_wme_ic_getparams(struct ieee80211com *ic, struct chanAccParams *wp)
{
memcpy(wp, &ic->ic_wme.wme_chanParams, sizeof(*wp));
+}
+
+/*
+ * Return whether to use QoS on a given WME queue.
+ *
+ * This is intended to be called from the transmit path of softmac drivers
+ * which are setting NoAck bits in transmit descriptors.
+ *
+ * Ideally this would be set in some transmit field before the packet is
+ * queued to the driver but net80211 isn't quite there yet.
+ */
+int
+ieee80211_wme_vap_ac_is_noack(struct ieee80211vap *vap, int ac)
+{
+ /* Bounds/sanity check */
+ if (ac < 0 || ac >= WME_NUM_AC)
+ return (0);
+
+ /* Again, there's only one global context for now */
+ return (!!
vap->iv_ic->ic_wme.wme_chanParams.cap_wmeParams[ac].wmep_noackPolicy);
}
static void
Modified: head/sys/net80211/ieee80211_proto.h
==============================================================================
--- head/sys/net80211/ieee80211_proto.h Sat Dec 9 21:55:19 2017
(r326736)
+++ head/sys/net80211/ieee80211_proto.h Sat Dec 9 23:16:02 2017
(r326737)
@@ -298,6 +298,7 @@ void ieee80211_wme_vap_getparams(struct ieee80211vap
*
struct chanAccParams *);
void ieee80211_wme_ic_getparams(struct ieee80211com *ic,
struct chanAccParams *);
+int ieee80211_wme_vap_ac_is_noack(struct ieee80211vap *vap, int ac);
/*
* Return the WME TID from a QoS frame. If no TID
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