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>
This commit is contained in:
parent
04d1c22761
commit
34dd5feb8b
@ -17,7 +17,7 @@ config IWM
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config IWM_DEBUG
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bool "Enable full debugging output in iwmc3200wifi"
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depends on IWM && DEBUG_FS
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---help---
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help
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This option will enable debug tracing and setting for iwm
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You can set the debug level and module through debugfs. By
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@ -30,3 +30,10 @@ config IWM_DEBUG
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Or, if you want the full debug, for all modules:
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echo 0xff > /sys/kernel/debug/iwm/phyN/debug/level
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echo 0xff > /sys/kernel/debug/iwm/phyN/debug/modules
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config IWM_TRACING
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bool "Enable event tracing for iwmc3200wifi"
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depends on IWM && EVENT_TRACING
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help
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Say Y here to trace all the commands and responses between
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the driver and firmware (including TX/RX frames) with ftrace.
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@ -3,3 +3,6 @@ iwmc3200wifi-objs += main.o netdev.o rx.o tx.o sdio.o hal.o fw.o
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iwmc3200wifi-objs += commands.o cfg80211.o eeprom.o
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iwmc3200wifi-$(CONFIG_IWM_DEBUG) += debugfs.o
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iwmc3200wifi-$(CONFIG_IWM_TRACING) += trace.o
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CFLAGS_trace.o := -I$(src)
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@ -104,6 +104,7 @@
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#include "hal.h"
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#include "umac.h"
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#include "debug.h"
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#include "trace.h"
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static int iwm_nonwifi_cmd_init(struct iwm_priv *iwm,
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struct iwm_nonwifi_cmd *cmd,
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@ -276,6 +277,7 @@ static int iwm_send_udma_nonwifi_cmd(struct iwm_priv *iwm,
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udma_cmd->handle_by_hw, cmd->seq_num, udma_cmd->addr,
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udma_cmd->op1_sz, udma_cmd->op2);
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trace_iwm_tx_nonwifi_cmd(iwm, udma_hdr);
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return iwm_bus_send_chunk(iwm, buf->start, buf->len);
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}
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@ -362,6 +364,7 @@ static int iwm_send_udma_wifi_cmd(struct iwm_priv *iwm,
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return ret;
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}
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trace_iwm_tx_wifi_cmd(iwm, umac_hdr);
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return iwm_bus_send_chunk(iwm, buf->start, buf->len);
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}
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@ -75,7 +75,8 @@ do { \
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/* UDMA IN OP CODE -- cmd bits [3:0] */
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#define UDMA_IN_OPCODE_MASK 0xF
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#define UDMA_HDI_IN_NW_CMD_OPCODE_POS 0
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#define UDMA_HDI_IN_NW_CMD_OPCODE_SEED 0xF
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#define UDMA_IN_OPCODE_GENERAL_RESP 0x0
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#define UDMA_IN_OPCODE_READ_RESP 0x1
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@ -48,6 +48,7 @@
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#include "umac.h"
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#include "lmac.h"
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#include "eeprom.h"
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#include "trace.h"
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#define IWM_COPYRIGHT "Copyright(c) 2009 Intel Corporation"
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#define IWM_AUTHOR "<ilw@linux.intel.com>"
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@ -1235,18 +1235,24 @@ static int iwm_rx_handle_wifi(struct iwm_priv *iwm, u8 *buf,
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u8 source, cmd_id;
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u16 seq_num;
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u32 count;
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u8 resp;
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wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf;
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cmd_id = wifi_hdr->sw_hdr.cmd.cmd;
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source = GET_VAL32(wifi_hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE);
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if (source >= IWM_SRC_NUM) {
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IWM_CRIT(iwm, "invalid source %d\n", source);
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return -EINVAL;
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}
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count = (GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_BYTE_COUNT));
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if (cmd_id == REPLY_RX_MPDU_CMD)
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trace_iwm_rx_packet(iwm, buf, buf_size);
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else if ((cmd_id == UMAC_NOTIFY_OPCODE_RX_TICKET) &&
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(source == UMAC_HDI_IN_SOURCE_FW))
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trace_iwm_rx_ticket(iwm, buf, buf_size);
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else
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trace_iwm_rx_wifi_cmd(iwm, wifi_hdr);
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count = GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_BYTE_COUNT);
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count += sizeof(struct iwm_umac_wifi_in_hdr) -
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sizeof(struct iwm_dev_cmd_hdr);
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if (count > buf_size) {
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@ -1254,8 +1260,6 @@ static int iwm_rx_handle_wifi(struct iwm_priv *iwm, u8 *buf,
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return -EINVAL;
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}
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resp = GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_STATUS);
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seq_num = le16_to_cpu(wifi_hdr->sw_hdr.cmd.seq_num);
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IWM_DBG_RX(iwm, DBG, "CMD:0x%x, source: 0x%x, seqnum: %d\n",
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@ -1330,6 +1334,7 @@ static int iwm_rx_handle_nonwifi(struct iwm_priv *iwm, u8 *buf,
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struct iwm_udma_in_hdr *hdr = (struct iwm_udma_in_hdr *)buf;
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struct iwm_nonwifi_cmd *cmd;
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trace_iwm_rx_nonwifi_cmd(iwm, buf, buf_size);
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seq_num = GET_VAL32(hdr->cmd, UDMA_HDI_IN_CMD_NON_WIFI_HW_SEQ_NUM);
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/*
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3
drivers/net/wireless/iwmc3200wifi/trace.c
Normal file
3
drivers/net/wireless/iwmc3200wifi/trace.c
Normal file
@ -0,0 +1,3 @@
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#include "iwm.h"
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#define CREATE_TRACE_POINTS
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#include "trace.h"
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drivers/net/wireless/iwmc3200wifi/trace.h
Normal file
283
drivers/net/wireless/iwmc3200wifi/trace.h
Normal file
@ -0,0 +1,283 @@
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#if !defined(__IWM_TRACE_H__) || defined(TRACE_HEADER_MULTI_READ)
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#define __IWM_TRACE_H__
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#include <linux/tracepoint.h>
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#if !defined(CONFIG_IWM_TRACING)
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#undef TRACE_EVENT
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#define TRACE_EVENT(name, proto, ...) \
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static inline void trace_ ## name(proto) {}
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#endif
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM iwm
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#define IWM_ENTRY __array(char, ndev_name, 16)
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#define IWM_ASSIGN strlcpy(__entry->ndev_name, iwm_to_ndev(iwm)->name, 16)
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#define IWM_PR_FMT "%s"
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#define IWM_PR_ARG __entry->ndev_name
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TRACE_EVENT(iwm_tx_nonwifi_cmd,
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TP_PROTO(struct iwm_priv *iwm, struct iwm_udma_out_nonwifi_hdr *hdr),
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TP_ARGS(iwm, hdr),
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TP_STRUCT__entry(
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IWM_ENTRY
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__field(u8, opcode)
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__field(u8, resp)
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__field(u8, eot)
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__field(u8, hw)
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__field(u16, seq)
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__field(u32, addr)
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__field(u32, op1)
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__field(u32, op2)
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),
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TP_fast_assign(
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IWM_ASSIGN;
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__entry->opcode = GET_VAL32(hdr->cmd, UMAC_HDI_OUT_CMD_OPCODE);
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__entry->resp = GET_VAL32(hdr->cmd, UDMA_HDI_OUT_NW_CMD_RESP);
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__entry->eot = GET_VAL32(hdr->cmd, UMAC_HDI_OUT_CMD_EOT);
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__entry->hw = GET_VAL32(hdr->cmd, UDMA_HDI_OUT_NW_CMD_HANDLE_BY_HW);
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__entry->seq = GET_VAL32(hdr->cmd, UDMA_HDI_OUT_CMD_NON_WIFI_HW_SEQ_NUM);
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__entry->addr = le32_to_cpu(hdr->addr);
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__entry->op1 = le32_to_cpu(hdr->op1_sz);
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__entry->op2 = le32_to_cpu(hdr->op2);
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),
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TP_printk(
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IWM_PR_FMT " Tx TARGET CMD: opcode 0x%x, resp %d, eot %d, "
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"hw %d, seq 0x%x, addr 0x%x, op1 0x%x, op2 0x%x",
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IWM_PR_ARG, __entry->opcode, __entry->resp, __entry->eot,
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__entry->hw, __entry->seq, __entry->addr, __entry->op1,
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__entry->op2
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)
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);
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TRACE_EVENT(iwm_tx_wifi_cmd,
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TP_PROTO(struct iwm_priv *iwm, struct iwm_umac_wifi_out_hdr *hdr),
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TP_ARGS(iwm, hdr),
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TP_STRUCT__entry(
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IWM_ENTRY
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__field(u8, opcode)
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__field(u8, lmac)
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__field(u8, resp)
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__field(u8, eot)
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__field(u8, ra_tid)
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__field(u8, credit_group)
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__field(u8, color)
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__field(u16, seq)
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),
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TP_fast_assign(
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IWM_ASSIGN;
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__entry->opcode = hdr->sw_hdr.cmd.cmd;
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__entry->lmac = 0;
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__entry->seq = hdr->sw_hdr.cmd.seq_num;
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__entry->resp = GET_VAL8(hdr->sw_hdr.cmd.flags, UMAC_DEV_CMD_FLAGS_RESP_REQ);
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__entry->color = GET_VAL32(hdr->sw_hdr.meta_data, UMAC_FW_CMD_TX_STA_COLOR);
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__entry->eot = GET_VAL32(hdr->hw_hdr.cmd, UMAC_HDI_OUT_CMD_EOT);
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__entry->ra_tid = GET_VAL32(hdr->hw_hdr.meta_data, UMAC_HDI_OUT_RATID);
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__entry->credit_group = GET_VAL32(hdr->hw_hdr.meta_data, UMAC_HDI_OUT_CREDIT_GRP);
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if (__entry->opcode == UMAC_CMD_OPCODE_WIFI_PASS_THROUGH ||
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__entry->opcode == UMAC_CMD_OPCODE_WIFI_IF_WRAPPER) {
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__entry->lmac = 1;
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__entry->opcode = ((struct iwm_lmac_hdr *)(hdr + 1))->id;
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}
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),
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TP_printk(
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IWM_PR_FMT " Tx %cMAC CMD: opcode 0x%x, resp %d, eot %d, "
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"seq 0x%x, sta_color 0x%x, ra_tid 0x%x, credit_group 0x%x",
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IWM_PR_ARG, __entry->lmac ? 'L' : 'U', __entry->opcode,
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__entry->resp, __entry->eot, __entry->seq, __entry->color,
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__entry->ra_tid, __entry->credit_group
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)
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);
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TRACE_EVENT(iwm_tx_packets,
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TP_PROTO(struct iwm_priv *iwm, u8 *buf, int len),
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TP_ARGS(iwm, buf, len),
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TP_STRUCT__entry(
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IWM_ENTRY
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__field(u8, eot)
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__field(u8, ra_tid)
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__field(u8, credit_group)
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__field(u8, color)
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__field(u16, seq)
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__field(u8, npkt)
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__field(u32, bytes)
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),
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TP_fast_assign(
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struct iwm_umac_wifi_out_hdr *hdr =
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(struct iwm_umac_wifi_out_hdr *)buf;
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IWM_ASSIGN;
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__entry->eot = GET_VAL32(hdr->hw_hdr.cmd, UMAC_HDI_OUT_CMD_EOT);
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__entry->ra_tid = GET_VAL32(hdr->hw_hdr.meta_data, UMAC_HDI_OUT_RATID);
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__entry->credit_group = GET_VAL32(hdr->hw_hdr.meta_data, UMAC_HDI_OUT_CREDIT_GRP);
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__entry->color = GET_VAL32(hdr->sw_hdr.meta_data, UMAC_FW_CMD_TX_STA_COLOR);
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__entry->seq = hdr->sw_hdr.cmd.seq_num;
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__entry->npkt = 1;
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__entry->bytes = len;
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if (!__entry->eot) {
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int count;
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u8 *ptr = buf;
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__entry->npkt = 0;
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while (ptr < buf + len) {
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count = GET_VAL32(hdr->sw_hdr.meta_data,
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UMAC_FW_CMD_BYTE_COUNT);
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ptr += ALIGN(sizeof(*hdr) + count, 16);
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hdr = (struct iwm_umac_wifi_out_hdr *)ptr;
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__entry->npkt++;
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}
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}
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),
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TP_printk(
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IWM_PR_FMT " Tx %spacket: eot %d, seq 0x%x, sta_color 0x%x, "
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"ra_tid 0x%x, credit_group 0x%x, embeded_packets %d, %d bytes",
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IWM_PR_ARG, !__entry->eot ? "concatenated " : "",
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__entry->eot, __entry->seq, __entry->color, __entry->ra_tid,
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__entry->credit_group, __entry->npkt, __entry->bytes
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)
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);
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TRACE_EVENT(iwm_rx_nonwifi_cmd,
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TP_PROTO(struct iwm_priv *iwm, void *buf, int len),
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TP_ARGS(iwm, buf, len),
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TP_STRUCT__entry(
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IWM_ENTRY
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__field(u8, opcode)
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__field(u16, seq)
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__field(u32, len)
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),
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TP_fast_assign(
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struct iwm_udma_in_hdr *hdr = buf;
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IWM_ASSIGN;
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__entry->opcode = GET_VAL32(hdr->cmd, UDMA_HDI_IN_NW_CMD_OPCODE);
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__entry->seq = GET_VAL32(hdr->cmd, UDMA_HDI_IN_CMD_NON_WIFI_HW_SEQ_NUM);
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__entry->len = len;
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),
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TP_printk(
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IWM_PR_FMT " Rx TARGET RESP: opcode 0x%x, seq 0x%x, len 0x%x",
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IWM_PR_ARG, __entry->opcode, __entry->seq, __entry->len
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)
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);
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TRACE_EVENT(iwm_rx_wifi_cmd,
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TP_PROTO(struct iwm_priv *iwm, struct iwm_umac_wifi_in_hdr *hdr),
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TP_ARGS(iwm, hdr),
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TP_STRUCT__entry(
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IWM_ENTRY
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__field(u8, cmd)
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__field(u8, source)
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__field(u16, seq)
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__field(u32, count)
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),
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TP_fast_assign(
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IWM_ASSIGN;
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__entry->cmd = hdr->sw_hdr.cmd.cmd;
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__entry->source = GET_VAL32(hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE);
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__entry->count = GET_VAL32(hdr->sw_hdr.meta_data, UMAC_FW_CMD_BYTE_COUNT);
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__entry->seq = le16_to_cpu(hdr->sw_hdr.cmd.seq_num);
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),
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TP_printk(
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IWM_PR_FMT " Rx %s RESP: cmd 0x%x, seq 0x%x, count 0x%x",
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IWM_PR_ARG, __entry->source == UMAC_HDI_IN_SOURCE_FHRX ? "LMAC" :
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__entry->source == UMAC_HDI_IN_SOURCE_FW ? "UMAC" : "UDMA",
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__entry->cmd, __entry->seq, __entry->count
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)
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);
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#define iwm_ticket_action_symbol \
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{ IWM_RX_TICKET_DROP, "DROP" }, \
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{ IWM_RX_TICKET_RELEASE, "RELEASE" }, \
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{ IWM_RX_TICKET_SNIFFER, "SNIFFER" }, \
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{ IWM_RX_TICKET_ENQUEUE, "ENQUEUE" }
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TRACE_EVENT(iwm_rx_ticket,
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TP_PROTO(struct iwm_priv *iwm, void *buf, int len),
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TP_ARGS(iwm, buf, len),
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TP_STRUCT__entry(
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IWM_ENTRY
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__field(u8, action)
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__field(u8, reason)
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__field(u16, id)
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__field(u16, flags)
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),
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TP_fast_assign(
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struct iwm_rx_ticket *ticket =
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((struct iwm_umac_notif_rx_ticket *)buf)->tickets;
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IWM_ASSIGN;
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__entry->id = le16_to_cpu(ticket->id);
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__entry->action = le16_to_cpu(ticket->action);
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__entry->flags = le16_to_cpu(ticket->flags);
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__entry->reason = (__entry->flags & IWM_RX_TICKET_DROP_REASON_MSK) >> IWM_RX_TICKET_DROP_REASON_POS;
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),
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TP_printk(
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IWM_PR_FMT " Rx ticket: id 0x%x, action %s, %s 0x%x%s",
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IWM_PR_ARG, __entry->id,
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__print_symbolic(__entry->action, iwm_ticket_action_symbol),
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__entry->reason ? "reason" : "flags",
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__entry->reason ? __entry->reason : __entry->flags,
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__entry->flags & IWM_RX_TICKET_AMSDU_MSK ? ", AMSDU frame" : ""
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)
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);
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TRACE_EVENT(iwm_rx_packet,
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TP_PROTO(struct iwm_priv *iwm, void *buf, int len),
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TP_ARGS(iwm, buf, len),
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TP_STRUCT__entry(
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IWM_ENTRY
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__field(u8, source)
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__field(u16, id)
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__field(u32, len)
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),
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TP_fast_assign(
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struct iwm_umac_wifi_in_hdr *hdr = buf;
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IWM_ASSIGN;
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__entry->source = GET_VAL32(hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE);
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__entry->id = le16_to_cpu(hdr->sw_hdr.cmd.seq_num);
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__entry->len = len - sizeof(*hdr);
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),
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TP_printk(
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IWM_PR_FMT " Rx %s packet: id 0x%x, %d bytes",
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IWM_PR_ARG, __entry->source == UMAC_HDI_IN_SOURCE_FHRX ?
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"LMAC" : "UMAC", __entry->id, __entry->len
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)
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);
|
||||
#endif
|
||||
|
||||
#undef TRACE_INCLUDE_PATH
|
||||
#define TRACE_INCLUDE_PATH .
|
||||
#undef TRACE_INCLUDE_FILE
|
||||
#define TRACE_INCLUDE_FILE trace
|
||||
#include <trace/define_trace.h>
|
@ -346,6 +346,7 @@ static int iwm_tx_send_concat_packets(struct iwm_priv *iwm,
|
||||
/* mark EOP for the last packet */
|
||||
iwm_udma_wifi_hdr_set_eop(iwm, txq->concat_ptr, 1);
|
||||
|
||||
trace_iwm_tx_packets(iwm, txq->concat_buf, txq->concat_count);
|
||||
ret = iwm_bus_send_chunk(iwm, txq->concat_buf, txq->concat_count);
|
||||
|
||||
txq->concat_count = 0;
|
||||
|
Loading…
Reference in New Issue
Block a user