/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2005-2006 Fen Systems Ltd.
* Copyright 2006-2013 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
#include <linux/in.h>
#include "net_driver.h"
#include "workarounds.h"
#include "selftest.h"
#include "efx.h"
#include "filter.h"
#include "nic.h"
struct efx_sw_stat_desc {
const char *name;
enum {
EFX_ETHTOOL_STAT_SOURCE_nic,
EFX_ETHTOOL_STAT_SOURCE_channel,
EFX_ETHTOOL_STAT_SOURCE_tx_queue
} source;
unsigned offset;
u64(*get_stat) (void *field); /* Reader function */
};
/* Initialiser for a struct efx_sw_stat_desc with type-checking */
#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
get_stat_function) { \
.name = #stat_name, \
.source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
.offset = ((((field_type *) 0) == \
&((struct efx_##source_name *)0)->field) ? \
offsetof(struct efx_##source_name, field) : \
offsetof(struct efx_##source_name, field)), \
.get_stat = get_stat_function, \
}
static u64 efx_get_uint_stat(void *field)
{
return *(unsigned int *)field;
}
static u64 efx_get_atomic_stat(void *field)
{
return atomic_read((atomic_t *) field);
}
#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
EFX_ETHTOOL_STAT(field, nic, field, \
atomic_t, efx_get_atomic_stat)
#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
EFX_ETHTOOL_STAT(field, channel, n_##field, \
unsigned int, efx_get_uint_stat)
#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
unsigned int, efx_get_uint_stat)
static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
EFX_ETHTOOL_UINT_TXQ_STAT(tso_fallbacks),
EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets),
EFX_ETHTOOL_ATOMIC_NI