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authorArend van Spriel <arend@broadcom.com>2013-06-06 13:18:05 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-06-12 15:06:24 -0400
commitea0737d6e24b44b632e9094108bb987b0338ea74 (patch)
tree219d9ead57df2fe0e5ef234a2a9f4a9856249a85 /drivers/net
parentcf3a6872b981037e29517b3e61e199bde14abc65 (diff)
brcmfmac: add trace event for capturing BDC header
The BDC header contains PropTx TLV signals that are useful to capture for debugging. This event captures the header and tlv's in binary form. This can be post-processed using trace-cmd plugin. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c3
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h21
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
index 59c77aa3b959..dd85401063cb 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
@@ -30,6 +30,7 @@
#include "dhd_bus.h"
#include "fwsignal.h"
#include "dhd_dbg.h"
+#include "tracepoint.h"
struct brcmf_proto_cdc_dcmd {
__le32 cmd; /* dongle command value */
@@ -292,6 +293,7 @@ void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx, u8 offset,
h->flags2 = 0;
h->data_offset = offset;
BDC_SET_IF_IDX(h, ifidx);
+ trace_brcmf_bdchdr(pktbuf->data);
}
int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
@@ -309,6 +311,7 @@ int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
return -EBADE;
}
+ trace_brcmf_bdchdr(pktbuf->data);
h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
*ifidx = BDC_GET_IF_IDX(h);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
index 9df1f7a681e0..bc2917112899 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
@@ -87,6 +87,27 @@ TRACE_EVENT(brcmf_hexdump,
TP_printk("hexdump [length=%lu]", __entry->len)
);
+TRACE_EVENT(brcmf_bdchdr,
+ TP_PROTO(void *data),
+ TP_ARGS(data),
+ TP_STRUCT__entry(
+ __field(u8, flags)
+ __field(u8, prio)
+ __field(u8, flags2)
+ __field(u32, siglen)
+ __dynamic_array(u8, signal, *((u8 *)data + 3) * 4)
+ ),
+ TP_fast_assign(
+ __entry->flags = *(u8 *)data;
+ __entry->prio = *((u8 *)data + 1);
+ __entry->flags2 = *((u8 *)data + 2);
+ __entry->siglen = *((u8 *)data + 3) * 4;
+ memcpy(__get_dynamic_array(signal),
+ (u8 *)data + 4, __entry->siglen);
+ ),
+ TP_printk("bdc: prio=%d siglen=%d", __entry->prio, __entry->siglen)
+);
+
#ifdef CONFIG_BRCM_TRACING
#undef TRACE_INCLUDE_PATH