Add tracing points for htc layer, just dumping the packets to user space.
I wasn't really sure what to do with the status value, it might not always
be accurate, but I included it anyway.
I skipped htc_pipe (and usb) implementation for now. Need to add those
tracepoints later.
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/htc_mbox.c | 21 ++++++++++-
drivers/net/wireless/ath/ath6kl/trace.h | 56 ++++++++++++++++++++++++++++
2 files changed, 76 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath6kl/htc_mbox.c b/drivers/net/wireless/ath/ath6kl/htc_mbox.c
index fbb78df..65e5b71 100644
--- a/drivers/net/wireless/ath/ath6kl/htc_mbox.c
+++ b/drivers/net/wireless/ath/ath6kl/htc_mbox.c
@@ -19,6 +19,8 @@
#include "hif.h"
#include "debug.h"
#include "hif-ops.h"
+#include "trace.h"
+
#include <asm/unaligned.h>
#define CALC_TXRX_PADDED_LEN(dev, len) (__ALIGN_MASK((len), (dev)->block_mask))
@@ -537,6 +539,8 @@ static int ath6kl_htc_tx_issue(struct htc_target *target,
packet->buf, padded_len,
HIF_WR_ASYNC_BLOCK_INC, packet);
+ trace_ath6kl_htc_tx(status, packet->endpoint, packet->buf, send_len);
+
return status;
}
@@ -757,7 +761,8 @@ static void ath6kl_htc_tx_bundle(struct htc_endpoint *endpoint,
{
struct htc_target *target = endpoint->target;
struct hif_scatter_req *scat_req = NULL;
- int n_scat, n_sent_bundle = 0, tot_pkts_bundle = 0;
+ int n_scat, n_sent_bundle = 0, tot_pkts_bundle = 0, i;
+ struct htc_packet *packet;
int status;
u32 txb_mask;
u8 ac = WMM_NUM_AC;
@@ -832,6 +837,13 @@ static void ath6kl_htc_tx_bundle(struct htc_endpoint *endpoint,
ath6kl_dbg(ATH6KL_DBG_HTC,
"htc tx scatter bytes %d entries %d\n",
scat_req->len, scat_req->scat_entries);
+
+ for (i = 0; i < scat_req->scat_entries; i++) {
+ packet = scat_req->scat_list[i].packet;
+ trace_ath6kl_htc_tx(packet->status, packet->endpoint,
+ packet->buf, packet->act_len);
+ }
+
ath6kl_hif_submit_scat_req(target->dev, scat_req, false);
if (status)
@@ -1903,6 +1915,7 @@ static void ath6kl_htc_rx_complete(struct htc_endpoint *endpoint,
ath6kl_dbg(ATH6KL_DBG_HTC,
"htc rx complete ep %d packet 0x%p\n",
endpoint->eid, packet);
+
endpoint->ep_cb.rx(endpoint->target, packet);
}
@@ -2011,6 +2024,9 @@ static int ath6kl_htc_rx_process_packets(struct htc_target *target,
list_for_each_entry_safe(packet, tmp_pkt, comp_pktq, list) {
ep = &target->endpoint[packet->endpoint];
+ trace_ath6kl_htc_rx(packet->status, packet->endpoint,
+ packet->buf, packet->act_len);
+
/* process header for each of the recv packet */
status = ath6kl_htc_rx_process_hdr(target, packet, lk_ahds,
n_lk_ahd);
@@ -2291,6 +2307,9 @@ static struct htc_packet *htc_wait_for_ctrl_msg(struct htc_target *target)
if (ath6kl_htc_rx_packet(target, packet, packet->act_len))
goto fail_ctrl_rx;
+ trace_ath6kl_htc_rx(packet->status, packet->endpoint,
+ packet->buf, packet->act_len);
+
/* process receive header */
packet->status = ath6kl_htc_rx_process_hdr(target, packet, NULL, NULL);
diff --git a/drivers/net/wireless/ath/ath6kl/trace.h b/drivers/net/wireless/ath/ath6kl/trace.h
index 541729b..306d58d 100644
--- a/drivers/net/wireless/ath/ath6kl/trace.h
+++ b/drivers/net/wireless/ath/ath6kl/trace.h
@@ -185,6 +185,62 @@ TRACE_EVENT(ath6kl_sdio_irq,
)
);
+TRACE_EVENT(ath6kl_htc_rx,
+ TP_PROTO(int status, int endpoint, void *buf,
+ size_t buf_len),
+
+ TP_ARGS(status, endpoint, buf, buf_len),
+
+ TP_STRUCT__entry(
+ __field(int, status)
+ __field(int, endpoint)
+ __field(size_t, buf_len)
+ __dynamic_array(u8, buf, buf_len)
+ ),
+
+ TP_fast_assign(
+ __entry->status = status;
+ __entry->endpoint = endpoint;
+ __entry->buf_len = buf_len;
+ memcpy(__get_dynamic_array(buf), buf, buf_len);
+ ),
+
+ TP_printk(
+ "status %d endpoint %d len %d\n",
+ __entry->status,
+ __entry->endpoint,
+ __entry->buf_len
+ )
+);
+
+TRACE_EVENT(ath6kl_htc_tx,
+ TP_PROTO(int status, int endpoint, void *buf,
+ size_t buf_len),
+
+ TP_ARGS(status, endpoint, buf, buf_len),
+
+ TP_STRUCT__entry(
+ __field(int, status)
+ __field(int, endpoint)
+ __field(size_t, buf_len)
+ __dynamic_array(u8, buf, buf_len)
+ ),
+
+ TP_fast_assign(
+ __entry->status = status;
+ __entry->endpoint = endpoint;
+ __entry->buf_len = buf_len;
+ memcpy(__get_dynamic_array(buf), buf, buf_len);
+ ),
+
+ TP_printk(
+ "status %d endpoint %d len %d\n",
+ __entry->status,
+ __entry->endpoint,
+ __entry->buf_len
+ )
+);
+
#endif /* _ ATH6KL_TRACE_H || TRACE_HEADER_MULTI_READ*/
/* we don't want to use include/trace/events */
--
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