mac80211: track needed RX chains for channel contexts
On each channel that the device is operating on, it
may need to listen using one or more chains depending
on the SMPS settings of the interfaces using it. The
previous channel context changes completely removed
this ability (before, it was available as the SMPS
mode).
Add per-context tracking of the required static and
dynamic RX chains and notify the driver on changes.
To achieve this, track the chains and SMPS mode used
on each virtual interface and update the channel
context whenever this changes.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index a3f5fe2..6293647 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -29,11 +29,16 @@
#define VIF_PR_ARG __get_str(vif_name), __entry->vif_type, __entry->p2p ? "/p2p" : ""
#define CHANCTX_ENTRY __field(int, freq) \
- __field(int, chantype)
+ __field(int, chantype) \
+ __field(u8, rx_chains_static) \
+ __field(u8, rx_chains_dynamic)
#define CHANCTX_ASSIGN __entry->freq = ctx->conf.channel->center_freq; \
- __entry->chantype = ctx->conf.channel_type
-#define CHANCTX_PR_FMT " freq:%d MHz chantype:%d"
-#define CHANCTX_PR_ARG __entry->freq, __entry->chantype
+ __entry->chantype = ctx->conf.channel_type; \
+ __entry->rx_chains_static = ctx->conf.rx_chains_static; \
+ __entry->rx_chains_dynamic = ctx->conf.rx_chains_dynamic
+#define CHANCTX_PR_FMT " freq:%d MHz chantype:%d chains:%d/%d"
+#define CHANCTX_PR_ARG __entry->freq, __entry->chantype, \
+ __entry->rx_chains_static, __entry->rx_chains_dynamic