iwmc3200wifi: add ftrace event tracing support
Add event tracer for iwmc3200wifi driver. When enabled, all the
commands and responses between the driver and firmware (also
including Tx/Rx frames) will be recorded in the ftrace ring buffer.
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwmc3200wifi/rx.c b/drivers/net/wireless/iwmc3200wifi/rx.c
index cbaf8ae..38d950b 100644
--- a/drivers/net/wireless/iwmc3200wifi/rx.c
+++ b/drivers/net/wireless/iwmc3200wifi/rx.c
@@ -1235,18 +1235,24 @@
u8 source, cmd_id;
u16 seq_num;
u32 count;
- u8 resp;
wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf;
cmd_id = wifi_hdr->sw_hdr.cmd.cmd;
-
source = GET_VAL32(wifi_hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE);
if (source >= IWM_SRC_NUM) {
IWM_CRIT(iwm, "invalid source %d\n", source);
return -EINVAL;
}
- count = (GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_BYTE_COUNT));
+ if (cmd_id == REPLY_RX_MPDU_CMD)
+ trace_iwm_rx_packet(iwm, buf, buf_size);
+ else if ((cmd_id == UMAC_NOTIFY_OPCODE_RX_TICKET) &&
+ (source == UMAC_HDI_IN_SOURCE_FW))
+ trace_iwm_rx_ticket(iwm, buf, buf_size);
+ else
+ trace_iwm_rx_wifi_cmd(iwm, wifi_hdr);
+
+ count = GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_BYTE_COUNT);
count += sizeof(struct iwm_umac_wifi_in_hdr) -
sizeof(struct iwm_dev_cmd_hdr);
if (count > buf_size) {
@@ -1254,8 +1260,6 @@
return -EINVAL;
}
- resp = GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_STATUS);
-
seq_num = le16_to_cpu(wifi_hdr->sw_hdr.cmd.seq_num);
IWM_DBG_RX(iwm, DBG, "CMD:0x%x, source: 0x%x, seqnum: %d\n",
@@ -1330,6 +1334,7 @@
struct iwm_udma_in_hdr *hdr = (struct iwm_udma_in_hdr *)buf;
struct iwm_nonwifi_cmd *cmd;
+ trace_iwm_rx_nonwifi_cmd(iwm, buf, buf_size);
seq_num = GET_VAL32(hdr->cmd, UDMA_HDI_IN_CMD_NON_WIFI_HW_SEQ_NUM);
/*