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-rw-r--r--drivers/net/wireless/iwlwifi/dvm/main.c3
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-devtrace.h95
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-trans.h8
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/rx.c3
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/trans.c4
5 files changed, 103 insertions, 10 deletions
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 7ff3f14..963d02b 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -1334,6 +1334,9 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
/* Configure transport layer */
iwl_trans_configure(priv->trans, &trans_cfg);
+ trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
+ trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
+
/* At this point both hw and priv are allocated. */
SET_IEEE80211_DEV(priv->hw, priv->trans->dev);
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
index 59a5f78..678717b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
@@ -25,6 +25,39 @@
*****************************************************************************/
#if !defined(__IWLWIFI_DEVICE_TRACE) || defined(TRACE_HEADER_MULTI_READ)
+#include <linux/skbuff.h>
+#include <linux/ieee80211.h>
+#include <net/cfg80211.h>
+#include "iwl-trans.h"
+#if !defined(__IWLWIFI_DEVICE_TRACE)
+static inline bool iwl_trace_data(struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (void *)skb->data;
+
+ if (ieee80211_is_data(hdr->frame_control))
+ return skb->protocol != cpu_to_be16(ETH_P_PAE);
+ return false;
+}
+
+static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans,
+ void *rxbuf, size_t len)
+{
+ struct iwl_cmd_header *cmd = (void *)((u8 *)rxbuf + sizeof(__le32));
+ struct ieee80211_hdr *hdr;
+
+ if (cmd->cmd != trans->rx_mpdu_cmd)
+ return len;
+
+ hdr = (void *)((u8 *)cmd + sizeof(struct iwl_cmd_header) +
+ trans->rx_mpdu_cmd_hdr_size);
+ if (!ieee80211_is_data(hdr->frame_control))
+ return len;
+ /* maybe try to identify EAPOL frames? */
+ return sizeof(__le32) + sizeof(*cmd) + trans->rx_mpdu_cmd_hdr_size +
+ ieee80211_hdrlen(hdr->frame_control);
+}
+#endif
+
#define __IWLWIFI_DEVICE_TRACE
#include <linux/tracepoint.h>
@@ -235,6 +268,48 @@ TRACE_EVENT(iwlwifi_dbg,
);
#undef TRACE_SYSTEM
+#define TRACE_SYSTEM iwlwifi_data
+
+TRACE_EVENT(iwlwifi_dev_tx_data,
+ TP_PROTO(const struct device *dev,
+ struct sk_buff *skb,
+ void *data, size_t data_len),
+ TP_ARGS(dev, skb, data, data_len),
+ TP_STRUCT__entry(
+ DEV_ENTRY
+
+ __dynamic_array(u8, data, iwl_trace_data(skb) ? data_len : 0)
+ ),
+ TP_fast_assign(
+ DEV_ASSIGN;
+ if (iwl_trace_data(skb))
+ memcpy(__get_dynamic_array(data), data, data_len);
+ ),
+ TP_printk("[%s] TX frame data", __get_str(dev))
+);
+
+TRACE_EVENT(iwlwifi_dev_rx_data,
+ TP_PROTO(const struct device *dev,
+ const struct iwl_trans *trans,
+ void *rxbuf, size_t len),
+ TP_ARGS(dev, trans, rxbuf, len),
+ TP_STRUCT__entry(
+ DEV_ENTRY
+
+ __dynamic_array(u8, data,
+ len - iwl_rx_trace_len(trans, rxbuf, len))
+ ),
+ TP_fast_assign(
+ size_t offs = iwl_rx_trace_len(trans, rxbuf, len);
+ DEV_ASSIGN;
+ if (offs < len)
+ memcpy(__get_dynamic_array(data),
+ ((u8 *)rxbuf) + offs, len - offs);
+ ),
+ TP_printk("[%s] TX frame data", __get_str(dev))
+);
+
+#undef TRACE_SYSTEM
#define TRACE_SYSTEM iwlwifi
TRACE_EVENT(iwlwifi_dev_hcmd,
@@ -270,25 +345,28 @@ TRACE_EVENT(iwlwifi_dev_hcmd,
);
TRACE_EVENT(iwlwifi_dev_rx,
- TP_PROTO(const struct device *dev, void *rxbuf, size_t len),
- TP_ARGS(dev, rxbuf, len),
+ TP_PROTO(const struct device *dev, const struct iwl_trans *trans,
+ void *rxbuf, size_t len),
+ TP_ARGS(dev, trans, rxbuf, len),
TP_STRUCT__entry(
DEV_ENTRY
- __dynamic_array(u8, rxbuf, len)
+ __dynamic_array(u8, rxbuf, iwl_rx_trace_len(trans, rxbuf, len))
),
TP_fast_assign(
DEV_ASSIGN;
- memcpy(__get_dynamic_array(rxbuf), rxbuf, len);
+ memcpy(__get_dynamic_array(rxbuf), rxbuf,
+ iwl_rx_trace_len(trans, rxbuf, len));
),
TP_printk("[%s] RX cmd %#.2x",
__get_str(dev), ((u8 *)__get_dynamic_array(rxbuf))[4])
);
TRACE_EVENT(iwlwifi_dev_tx,
- TP_PROTO(const struct device *dev, void *tfd, size_t tfdlen,
+ TP_PROTO(const struct device *dev, struct sk_buff *skb,
+ void *tfd, size_t tfdlen,
void *buf0, size_t buf0_len,
void *buf1, size_t buf1_len),
- TP_ARGS(dev, tfd, tfdlen, buf0, buf0_len, buf1, buf1_len),
+ TP_ARGS(dev, skb, tfd, tfdlen, buf0, buf0_len, buf1, buf1_len),
TP_STRUCT__entry(
DEV_ENTRY
@@ -301,14 +379,15 @@ TRACE_EVENT(iwlwifi_dev_tx,
* for the possible padding).
*/
__dynamic_array(u8, buf0, buf0_len)
- __dynamic_array(u8, buf1, buf1_len)
+ __dynamic_array(u8, buf1, iwl_trace_data(skb) ? 0 : buf1_len)
),
TP_fast_assign(
DEV_ASSIGN;
__entry->framelen = buf0_len + buf1_len;
memcpy(__get_dynamic_array(tfd), tfd, tfdlen);
memcpy(__get_dynamic_array(buf0), buf0, buf0_len);
- memcpy(__get_dynamic_array(buf1), buf1, buf1_len);
+ if (!iwl_trace_data(skb))
+ memcpy(__get_dynamic_array(buf1), buf1, buf1_len);
),
TP_printk("[%s] TX %.2x (%zu bytes)",
__get_str(dev), ((u8 *)__get_dynamic_array(buf0))[0],
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index ff11542..f75ea6d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -444,6 +444,10 @@ enum iwl_trans_state {
* @dev_cmd_headroom: room needed for the transport's private use before the
* device_cmd for Tx - for internal use only
* The user should use iwl_trans_{alloc,free}_tx_cmd.
+ * @rx_mpdu_cmd: MPDU RX command ID, must be assigned by opmode before
+ * starting the firmware, used for tracing
+ * @rx_mpdu_cmd_hdr_size: used for tracing, amount of data before the
+ * start of the 802.11 header in the @rx_mpdu_cmd
*/
struct iwl_trans {
const struct iwl_trans_ops *ops;
@@ -457,6 +461,8 @@ struct iwl_trans {
u32 hw_id;
char hw_id_str[52];
+ u8 rx_mpdu_cmd, rx_mpdu_cmd_hdr_size;
+
bool pm_support;
wait_queue_head_t wait_command_queue;
@@ -516,6 +522,8 @@ static inline int iwl_trans_start_fw(struct iwl_trans *trans,
{
might_sleep();
+ WARN_ON_ONCE(!trans->rx_mpdu_cmd);
+
return trans->ops->start_fw(trans, fw);
}
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 17c8e5d..137af4c 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -411,7 +411,8 @@ static void iwl_rx_handle_rxbuf(struct iwl_trans *trans,
len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
len += sizeof(u32); /* account for status word */
- trace_iwlwifi_dev_rx(trans->dev, pkt, len);
+ trace_iwlwifi_dev_rx(trans->dev, trans, pkt, len);
+ trace_iwlwifi_dev_rx_data(trans->dev, trans, pkt, len);
/* Reclaim a command buffer only if this packet is a response
* to a (driver-originated) command.
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index fe0fffd..2349043 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1385,11 +1385,13 @@ static int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
dma_sync_single_for_device(trans->dev, txcmd_phys, firstlen,
DMA_BIDIRECTIONAL);
- trace_iwlwifi_dev_tx(trans->dev,
+ trace_iwlwifi_dev_tx(trans->dev, skb,
&txq->tfds[txq->q.write_ptr],
sizeof(struct iwl_tfd),
&dev_cmd->hdr, firstlen,
skb->data + hdr_len, secondlen);
+ trace_iwlwifi_dev_tx_data(trans->dev, skb,
+ skb->data + hdr_len, secondlen);
/* start timer if queue currently empty */
if (txq->need_update && q->read_ptr == q->write_ptr &&
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