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Commit ad75b7d3 authored by Rahul Lakkireddy's avatar Rahul Lakkireddy Committed by David S. Miller
Browse files

cxgb4: implement ethtool dump data operations 



Implement operations to set/get dump data via ethtool.  Also add
template header that precedes dump data, which helps in decoding
and extracting the dump data.

Signed-off-by: default avatarRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4c7787ba

drivers/net/ethernet/chelsio/cxgb4/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -6,7 +6,7 @@ obj-$(CONFIG_CHELSIO_T4) += cxgb4.o 


cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o clip_tbl.o cxgb4_ethtool.o \

	      cxgb4_uld.o sched.o cxgb4_filter.o cxgb4_tc_u32.o \

	      cxgb4_ptp.o cxgb4_tc_flower.o

	      cxgb4_ptp.o cxgb4_tc_flower.o cxgb4_cudbg.o

cxgb4-$(CONFIG_CHELSIO_T4_DCB) +=  cxgb4_dcb.o

cxgb4-$(CONFIG_CHELSIO_T4_FCOE) +=  cxgb4_fcoe.o

cxgb4-$(CONFIG_DEBUG_FS) += cxgb4_debugfs.o

drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h

0 → 100644
+33 −0
Original line number Diff line number Diff line 
/*

 *  Copyright (C) 2017 Chelsio Communications.  All rights reserved.

 *

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

 *  under the terms and conditions of the GNU General Public License,

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

 *

 *  This program is distributed in the hope 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.

 *

 *  The full GNU General Public License is included in this distribution in

 *  the file called "COPYING".

 *

 */



#ifndef __CUDBG_IF_H__

#define __CUDBG_IF_H__



#define CUDBG_MAJOR_VERSION 1

#define CUDBG_MINOR_VERSION 14



enum cudbg_dbg_entity_type {

	CUDBG_MAX_ENTITY = 70,

};



struct cudbg_init {

	struct adapter *adap; /* Pointer to adapter structure */

	void *outbuf; /* Output buffer */

	u32 outbuf_size;  /* Output buffer size */

};

#endif /* __CUDBG_IF_H__ */

drivers/net/ethernet/chelsio/cxgb4/cudbg_lib_common.h

0 → 100644
+65 −0
Original line number Diff line number Diff line 
/*

 *  Copyright (C) 2017 Chelsio Communications.  All rights reserved.

 *

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

 *  under the terms and conditions of the GNU General Public License,

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

 *

 *  This program is distributed in the hope 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.

 *

 *  The full GNU General Public License is included in this distribution in

 *  the file called "COPYING".

 *

 */



#ifndef __CUDBG_LIB_COMMON_H__

#define __CUDBG_LIB_COMMON_H__



#define CUDBG_SIGNATURE 67856866 /* CUDB in ascii */



enum cudbg_dump_type {

	CUDBG_DUMP_TYPE_MINI = 1,

};



enum cudbg_compression_type {

	CUDBG_COMPRESSION_NONE = 1,

};



struct cudbg_hdr {

	u32 signature;

	u32 hdr_len;

	u16 major_ver;

	u16 minor_ver;

	u32 data_len;

	u32 hdr_flags;

	u16 max_entities;

	u8 chip_ver;

	u8 dump_type:3;

	u8 reserved1:1;

	u8 compress_type:4;

	u32 reserved[8];

};



struct cudbg_entity_hdr {

	u32 entity_type;

	u32 start_offset;

	u32 size;

	int hdr_flags;

	u32 sys_warn;

	u32 sys_err;

	u8 num_pad;

	u8 flag;             /* bit 0 is used to indicate ext data */

	u8 reserved1[2];

	u32 next_ext_offset; /* pointer to next extended entity meta data */

	u32 reserved[5];

};



struct cudbg_buffer {

	u32 size;

	u32 offset;

	char *data;

};

#endif /* __CUDBG_LIB_COMMON_H__ */

drivers/net/ethernet/chelsio/cxgb4/cxgb4.h

+3 −0
Original line number Diff line number Diff line
@@ -909,6 +909,9 @@ struct adapter { 
	/* TC flower offload */

	DECLARE_HASHTABLE(flower_anymatch_tbl, 9);

	struct timer_list flower_stats_timer;



	/* Ethtool Dump */

	struct ethtool_dump eth_dump;

};



/* Support for "sched-class" command to allow a TX Scheduling Class to be

drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c

0 → 100644
+73 −0
Original line number Diff line number Diff line 
/*

 *  Copyright (C) 2017 Chelsio Communications.  All rights reserved.

 *

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

 *  under the terms and conditions of the GNU General Public License,

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

 *

 *  This program is distributed in the hope 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.

 *

 *  The full GNU General Public License is included in this distribution in

 *  the file called "COPYING".

 *

 */



#include "cxgb4.h"

#include "cxgb4_cudbg.h"



u32 cxgb4_get_dump_length(struct adapter *adap, u32 flag)

{

	return 0;

}



int cxgb4_cudbg_collect(struct adapter *adap, void *buf, u32 *buf_size,

			u32 flag)

{

	struct cudbg_init cudbg_init = { 0 };

	struct cudbg_buffer dbg_buff = { 0 };

	u32 size, min_size, total_size = 0;

	struct cudbg_hdr *cudbg_hdr;



	size = *buf_size;



	cudbg_init.adap = adap;

	cudbg_init.outbuf = buf;

	cudbg_init.outbuf_size = size;



	dbg_buff.data = buf;

	dbg_buff.size = size;

	dbg_buff.offset = 0;



	cudbg_hdr = (struct cudbg_hdr *)buf;

	cudbg_hdr->signature = CUDBG_SIGNATURE;

	cudbg_hdr->hdr_len = sizeof(struct cudbg_hdr);

	cudbg_hdr->major_ver = CUDBG_MAJOR_VERSION;

	cudbg_hdr->minor_ver = CUDBG_MINOR_VERSION;

	cudbg_hdr->max_entities = CUDBG_MAX_ENTITY;

	cudbg_hdr->chip_ver = adap->params.chip;

	cudbg_hdr->dump_type = CUDBG_DUMP_TYPE_MINI;

	cudbg_hdr->compress_type = CUDBG_COMPRESSION_NONE;



	min_size = sizeof(struct cudbg_hdr) +

		   sizeof(struct cudbg_entity_hdr) *

		   cudbg_hdr->max_entities;

	if (size < min_size)

		return -ENOMEM;



	dbg_buff.offset += min_size;

	total_size = dbg_buff.offset;



	cudbg_hdr->data_len = total_size;

	*buf_size = total_size;

	return 0;

}



void cxgb4_init_ethtool_dump(struct adapter *adapter)

{

	adapter->eth_dump.flag = CXGB4_ETH_DUMP_NONE;

	adapter->eth_dump.version = adapter->params.fw_vers;

	adapter->eth_dump.len = 0;

}