mwifiex: add sdio multiport aggregation debug information

This patch sdio multi port aggregation statistics which can be
used for debugging. This debug data is collected in
/sys/kernel/debug/mwifiex/mlan0/debug.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/marvell/mwifiex/ioctl.h

@@ -184,6 +184,7 @@ struct mwifiex_ds_tx_ba_stream_tbl {
 };
 
 #define DBG_CMD_NUM    5
+#define MWIFIEX_DBG_SDIO_MP_NUM    10
 
 struct tdls_peer_info {
 	u8 peer_addr[ETH_ALEN];
@@ -235,6 +236,11 @@ struct mwifiex_debug_info {
 	u8 cmd_sent;
 	u8 cmd_resp_received;
 	u8 event_received;
+	u32 last_mp_wr_bitmap[MWIFIEX_DBG_SDIO_MP_NUM];
+	u32 last_mp_wr_ports[MWIFIEX_DBG_SDIO_MP_NUM];
+	u32 last_mp_wr_len[MWIFIEX_DBG_SDIO_MP_NUM];
+	u32 last_mp_curr_wr_port[MWIFIEX_DBG_SDIO_MP_NUM];
+	u8 last_sdio_mp_index;
 };
 
 #define MWIFIEX_KEY_INDEX_UNICAST	0x40000000

drivers/net/wireless/marvell/mwifiex/main.h

@@ -223,6 +223,11 @@ struct mwifiex_dbg {
 	u16 last_cmd_resp_index;
 	u16 last_event[DBG_CMD_NUM];
 	u16 last_event_index;
+	u32 last_mp_wr_bitmap[MWIFIEX_DBG_SDIO_MP_NUM];
+	u32 last_mp_wr_ports[MWIFIEX_DBG_SDIO_MP_NUM];
+	u32 last_mp_wr_len[MWIFIEX_DBG_SDIO_MP_NUM];
+	u32 last_mp_curr_wr_port[MWIFIEX_DBG_SDIO_MP_NUM];
+	u8 last_sdio_mp_index;
 };
 
 enum MWIFIEX_HARDWARE_STATUS {

drivers/net/wireless/marvell/mwifiex/sdio.c

@@ -1684,6 +1684,7 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 	s32 f_precopy_cur_buf = 0;
 	s32 f_postcopy_cur_buf = 0;
 	u32 mport;
+	int index;
 
 	if (!card->mpa_tx.enabled ||
 	    (card->has_control_mask && (port == CTRL_PORT)) ||
@@ -1788,6 +1789,15 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 		ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
 						 card->mpa_tx.buf_len, mport);
 
+		/* Save the last multi port tx aggreagation info to debug log */
+		index = adapter->dbg.last_sdio_mp_index;
+		index = (index + 1) % MWIFIEX_DBG_SDIO_MP_NUM;
+		adapter->dbg.last_sdio_mp_index = index;
+		adapter->dbg.last_mp_wr_ports[index] = mport;
+		adapter->dbg.last_mp_wr_bitmap[index] = card->mp_wr_bitmap;
+		adapter->dbg.last_mp_wr_len[index] = card->mpa_tx.buf_len;
+		adapter->dbg.last_mp_curr_wr_port[index] = card->curr_wr_port;
+
 		MP_TX_AGGR_BUF_RESET(card);
 	}
 

drivers/net/wireless/marvell/mwifiex/util.c

@@ -78,6 +78,16 @@ static struct mwifiex_debug_data items[] = {
 	 item_addr(last_event), DBG_CMD_NUM},
 	{"last_event_index", item_size(last_event_index),
 	 item_addr(last_event_index), 1},
+	{"last_mp_wr_bitmap", item_size(last_mp_wr_bitmap),
+	 item_addr(last_mp_wr_bitmap), MWIFIEX_DBG_SDIO_MP_NUM},
+	{"last_mp_wr_ports", item_size(last_mp_wr_ports),
+	 item_addr(last_mp_wr_ports), MWIFIEX_DBG_SDIO_MP_NUM},
+	{"last_mp_wr_len", item_size(last_mp_wr_len),
+	 item_addr(last_mp_wr_len), MWIFIEX_DBG_SDIO_MP_NUM},
+	{"last_mp_curr_wr_port", item_size(last_mp_curr_wr_port),
+	 item_addr(last_mp_curr_wr_port), MWIFIEX_DBG_SDIO_MP_NUM},
+	{"last_sdio_mp_index", item_size(last_sdio_mp_index),
+	 item_addr(last_sdio_mp_index), 1},
 	{"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure),
 	 item_addr(num_cmd_host_to_card_failure), 1},
 	{"num_cmd_sleep_cfm_fail",
@@ -233,6 +243,16 @@ int mwifiex_get_debug_info(struct mwifiex_private *priv,
 		memcpy(info->last_event, adapter->dbg.last_event,
 		       sizeof(adapter->dbg.last_event));
 		info->last_event_index = adapter->dbg.last_event_index;
+		memcpy(info->last_mp_wr_bitmap, adapter->dbg.last_mp_wr_bitmap,
+		       sizeof(adapter->dbg.last_mp_wr_bitmap));
+		memcpy(info->last_mp_wr_ports, adapter->dbg.last_mp_wr_ports,
+		       sizeof(adapter->dbg.last_mp_wr_ports));
+		memcpy(info->last_mp_curr_wr_port,
+		       adapter->dbg.last_mp_curr_wr_port,
+		       sizeof(adapter->dbg.last_mp_curr_wr_port));
+		memcpy(info->last_mp_wr_len, adapter->dbg.last_mp_wr_len,
+		       sizeof(adapter->dbg.last_mp_wr_len));
+		info->last_sdio_mp_index = adapter->dbg.last_sdio_mp_index;
 		info->data_sent = adapter->data_sent;
 		info->cmd_sent = adapter->cmd_sent;
 		info->cmd_resp_received = adapter->cmd_resp_received;