cregit-Linux how code gets into the kernel

Release 4.7 drivers/net/fjes/fjes_ethtool.c

Directory: drivers/net/fjes
/*
 *  FUJITSU Extended Socket Network Device driver
 *  Copyright (c) 2015 FUJITSU LIMITED
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, see <http://www.gnu.org/licenses/>.
 *
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 */

/* ethtool support for fjes */

#include <linux/vmalloc.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/platform_device.h>

#include "fjes.h"


struct fjes_stats {
	
char stat_string[ETH_GSTRING_LEN];
	
int sizeof_stat;
	
int stat_offset;
};


#define FJES_STAT(name, stat) { \
        .stat_string = name, \
        .sizeof_stat = FIELD_SIZEOF(struct fjes_adapter, stat), \
        .stat_offset = offsetof(struct fjes_adapter, stat) \
}


static const struct fjes_stats fjes_gstrings_stats[] = {
	FJES_STAT("rx_packets", stats64.rx_packets),
	FJES_STAT("tx_packets", stats64.tx_packets),
	FJES_STAT("rx_bytes", stats64.rx_bytes),
	FJES_STAT("tx_bytes", stats64.rx_bytes),
	FJES_STAT("rx_dropped", stats64.rx_dropped),
	FJES_STAT("tx_dropped", stats64.tx_dropped),
};


static void fjes_get_ethtool_stats(struct net_device *netdev, struct ethtool_stats *stats, u64 *data) { struct fjes_adapter *adapter = netdev_priv(netdev); char *p; int i; for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) { p = (char *)adapter + fjes_gstrings_stats[i].stat_offset; data[i] = (fjes_gstrings_stats[i].sizeof_stat == sizeof(u64)) ? *(u64 *)p : *(u32 *)p; } }

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static void fjes_get_strings(struct net_device *netdev, u32 stringset, u8 *data) { u8 *p = data; int i; switch (stringset) { case ETH_SS_STATS: for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) { memcpy(p, fjes_gstrings_stats[i].stat_string, ETH_GSTRING_LEN); p += ETH_GSTRING_LEN; } break; } }

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static int fjes_get_sset_count(struct net_device *netdev, int sset) { switch (sset) { case ETH_SS_STATS: return ARRAY_SIZE(fjes_gstrings_stats); default: return -EOPNOTSUPP; } }

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static void fjes_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) { struct fjes_adapter *adapter = netdev_priv(netdev); struct platform_device *plat_dev; plat_dev = adapter->plat_dev; strlcpy(drvinfo->driver, fjes_driver_name, sizeof(drvinfo->driver)); strlcpy(drvinfo->version, fjes_driver_version, sizeof(drvinfo->version)); strlcpy(drvinfo->fw_version, "none", sizeof(drvinfo->fw_version)); snprintf(drvinfo->bus_info, sizeof(drvinfo->bus_info), "platform:%s", plat_dev->name); }

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static int fjes_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) { ecmd->supported = 0; ecmd->advertising = 0; ecmd->duplex = DUPLEX_FULL; ecmd->autoneg = AUTONEG_DISABLE; ecmd->transceiver = XCVR_DUMMY1; ecmd->port = PORT_NONE; ethtool_cmd_speed_set(ecmd, 20000); /* 20Gb/s */ return 0; }

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static const struct ethtool_ops fjes_ethtool_ops = { .get_settings = fjes_get_settings, .get_drvinfo = fjes_get_drvinfo, .get_ethtool_stats = fjes_get_ethtool_stats, .get_strings = fjes_get_strings, .get_sset_count = fjes_get_sset_count, };
void fjes_set_ethtool_ops(struct net_device *netdev) { netdev->ethtool_ops = &fjes_ethtool_ops; }

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Directory: drivers/net/fjes
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