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Commit 53817a30 authored by Jinesh K. Jayakumar's avatar Jinesh K. Jayakumar Committed by Gerrit - the friendly Code Review server
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msm: ipa: eth: Add support for trace events 



Add support in IPA offload sub-system to provide trace events for LAN Rx
packets.

Change-Id: I65a3bb144234655e0acbefaaefe7abab9421f1ef
Signed-off-by: default avatarJinesh K. Jayakumar <jineshk@codeaurora.org>
parent da2faffc

drivers/platform/msm/ipa/ipa_v3/ethernet/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ ipa-eth-y := \ 
	ipa_eth_offload.o \

	ipa_eth_pci.o \

	ipa_eth_pm.o \

	ipa_eth_trace.o \

	ipa_eth_uc.o \

	ipa_eth_utils.o

drivers/platform/msm/ipa/ipa_v3/ethernet/ipa_eth_ep.c

+3 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/if_vlan.h>



#include "ipa_eth_i.h"

#include "ipa_eth_trace.h"



static void handle_ipa_receive(struct ipa_eth_channel *ch,

			       unsigned long data)
@@ -20,6 +21,8 @@ static void handle_ipa_receive(struct ipa_eth_channel *ch, 
	bool success = false;

	struct sk_buff *skb = (struct sk_buff *) data;



	trace_lan_rx_skb(ch, skb);



	ch->exception_total++;



#ifndef IPA_ETH_EP_LOOPBACK

drivers/platform/msm/ipa/ipa_v3/ethernet/ipa_eth_trace.c

0 → 100644
+14 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2020, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#define CREATE_TRACE_POINTS

#include "ipa_eth_trace.h"

drivers/platform/msm/ipa/ipa_v3/ethernet/ipa_eth_trace.h

0 → 100644
+57 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2020, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#undef TRACE_SYSTEM

#define TRACE_SYSTEM ipa_eth



#define TRACE_INCLUDE_PATH .

#define TRACE_INCLUDE_FILE ipa_eth_trace



#if !defined(_IPA_ETH_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)

#define _IPA_ETH_TRACE_H



#include <linux/tracepoint.h>



#include "ipa_eth_i.h"



/*

 * Tracepoint for tracking all packets received through IPA LAN exception.

 */

TRACE_EVENT(lan_rx_skb,

	TP_PROTO(struct ipa_eth_channel *ch, struct sk_buff *skb),

	TP_ARGS(ch, skb),

	TP_STRUCT__entry(

		__field(const char *, dev)

		__field(int, queue)

		__field(int, ep_num)

		__field(const struct ethhdr *, eth_hdr)

		__field(unsigned int, eth_proto)

		__field(unsigned int, skb_len)

	),

	TP_fast_assign(

		__entry->dev = ch->eth_dev->net_dev->name;

		__entry->queue = ch->queue;

		__entry->ep_num = ch->ipa_ep_num;

		__entry->eth_hdr = (struct ethhdr *)skb->data;

		__entry->eth_proto = ntohs(__entry->eth_hdr->h_proto);

		__entry->skb_len = skb->len;

	),

	TP_printk("dev=%s queue=%d ep_num=%d eth_proto=%04X skb_len=%u",

		__entry->dev, __entry->queue, __entry->ep_num,

		__entry->eth_proto, __entry->skb_len

	)

);



#endif /* _IPA_ETH_TRACE_H */



/* This part must be outside protection */

#include <trace/define_trace.h>