redonkable/alistair23-linux
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ath6kl: adding tracing points for htc_mbox

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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@qca.qualcomm.com>
This commit is contained in:
Kalle Valo 2013-03-18 13:42:21 +02:00
parent d57f093aab
commit 4771979aab
2 changed files with 76 additions and 1 deletions
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21
drivers/net/wireless/ath/ath6kl/htc_mbox.c
View file

@ -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);

56
drivers/net/wireless/ath/ath6kl/trace.h
View file

@ -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 */