brcmsmac: Add tracepoint for AMPDU session information

Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Tested-by: Daniel Wagner <wagi@monom.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h b/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h
index 2ef7580..871781e 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/brcms_trace_events.h
@@ -156,6 +156,34 @@ TRACE_EVENT(brcms_txstatus,
                  __entry->ackphyrxsh)
 );
 
+TRACE_EVENT(brcms_ampdu_session,
+       TP_PROTO(const struct device *dev, unsigned max_ampdu_len,
+                u16 max_ampdu_frames, u16 ampdu_len, u16 ampdu_frames,
+                u16 dma_len),
+       TP_ARGS(dev, max_ampdu_len, max_ampdu_frames, ampdu_len, ampdu_frames,
+               dma_len),
+       TP_STRUCT__entry(
+               __string(dev, dev_name(dev))
+               __field(unsigned, max_ampdu_len)
+               __field(u16, max_ampdu_frames)
+               __field(u16, ampdu_len)
+               __field(u16, ampdu_frames)
+               __field(u16, dma_len)
+       ),
+       TP_fast_assign(
+               __assign_str(dev, dev_name(dev));
+               __entry->max_ampdu_len = max_ampdu_len;
+               __entry->max_ampdu_frames = max_ampdu_frames;
+               __entry->ampdu_len = ampdu_len;
+               __entry->ampdu_frames = ampdu_frames;
+               __entry->dma_len = dma_len;
+       ),
+       TP_printk("[%s] ampdu session max_len=%u max_frames=%u len=%u frames=%u dma_len=%u",
+                 __get_str(dev), __entry->max_ampdu_len,
+                 __entry->max_ampdu_frames, __entry->ampdu_len,
+                 __entry->ampdu_frames, __entry->dma_len)
+);
+
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM brcmsmac_msg
 

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/dma.c b/drivers/net/wireless/brcm80211/brcmsmac/dma.c
index ba33443..0f44bd9 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmsmac/dma.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/dma.c
@@ -29,6 +29,7 @@
 #include "scb.h"
 #include "ampdu.h"
 #include "debug.h"
+#include "brcms_trace_events.h"
 
 /*
  * dma register field offset calculation
@@ -1311,6 +1312,13 @@ static void ampdu_finalize(struct dma_info *di)
        struct brcms_ampdu_session *session = &di->ampdu_session;
        struct sk_buff *p;
 
+       trace_brcms_ampdu_session(&session->wlc->hw->d11core->dev,
+                                 session->max_ampdu_len,
+                                 session->max_ampdu_frames,
+                                 session->ampdu_len,
+                                 skb_queue_len(&session->skb_list),
+                                 session->dma_len);
+
        if (WARN_ON(skb_queue_empty(&session->skb_list)))
                return;