New driver "sfc" for Solarstorm SFC4000 controller.
The driver supports the 10Xpress PHY and XFP modules on our reference designs SFE4001 and SFE4002 and the SMC models SMC10GPCIe-XFP and SMC10GPCIe-10BT. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:

committed by
Jeff Garzik

parent
358c12953b
commit
8ceee660aa
460
drivers/net/sfc/ethtool.c
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460
drivers/net/sfc/ethtool.c
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@@ -0,0 +1,460 @@
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/****************************************************************************
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* Driver for Solarflare Solarstorm network controllers and boards
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* Copyright 2005-2006 Fen Systems Ltd.
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* Copyright 2006-2008 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#include <linux/netdevice.h>
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#include <linux/ethtool.h>
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#include <linux/rtnetlink.h>
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#include "net_driver.h"
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#include "efx.h"
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#include "ethtool.h"
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#include "falcon.h"
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#include "gmii.h"
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#include "mac.h"
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static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable);
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struct ethtool_string {
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char name[ETH_GSTRING_LEN];
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};
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struct efx_ethtool_stat {
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const char *name;
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enum {
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EFX_ETHTOOL_STAT_SOURCE_mac_stats,
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EFX_ETHTOOL_STAT_SOURCE_nic,
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EFX_ETHTOOL_STAT_SOURCE_channel
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} source;
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unsigned offset;
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u64(*get_stat) (void *field); /* Reader function */
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};
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/* Initialiser for a struct #efx_ethtool_stat with type-checking */
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#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
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get_stat_function) { \
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.name = #stat_name, \
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.source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
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.offset = ((((field_type *) 0) == \
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&((struct efx_##source_name *)0)->field) ? \
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offsetof(struct efx_##source_name, field) : \
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offsetof(struct efx_##source_name, field)), \
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.get_stat = get_stat_function, \
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}
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static u64 efx_get_uint_stat(void *field)
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{
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return *(unsigned int *)field;
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}
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static u64 efx_get_ulong_stat(void *field)
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{
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return *(unsigned long *)field;
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}
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static u64 efx_get_u64_stat(void *field)
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{
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return *(u64 *) field;
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}
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static u64 efx_get_atomic_stat(void *field)
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{
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return atomic_read((atomic_t *) field);
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}
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#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
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EFX_ETHTOOL_STAT(field, mac_stats, field, \
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unsigned long, efx_get_ulong_stat)
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#define EFX_ETHTOOL_U64_MAC_STAT(field) \
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EFX_ETHTOOL_STAT(field, mac_stats, field, \
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u64, efx_get_u64_stat)
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#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
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EFX_ETHTOOL_STAT(name, nic, n_##name, \
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unsigned int, efx_get_uint_stat)
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#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
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EFX_ETHTOOL_STAT(field, nic, field, \
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atomic_t, efx_get_atomic_stat)
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#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
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EFX_ETHTOOL_STAT(field, channel, n_##field, \
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unsigned int, efx_get_uint_stat)
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static struct efx_ethtool_stat efx_ethtool_stats[] = {
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EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
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EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
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EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
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EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
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EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
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EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
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EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
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EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
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EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
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EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
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};
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/* Number of ethtool statistics */
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#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
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/**************************************************************************
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*
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* Ethtool operations
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*
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**************************************************************************
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*/
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/* Identify device by flashing LEDs */
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static int efx_ethtool_phys_id(struct net_device *net_dev, u32 seconds)
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{
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struct efx_nic *efx = net_dev->priv;
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efx->board_info.blink(efx, 1);
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schedule_timeout_interruptible(seconds * HZ);
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efx->board_info.blink(efx, 0);
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return 0;
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}
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/* This must be called with rtnl_lock held. */
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int efx_ethtool_get_settings(struct net_device *net_dev,
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struct ethtool_cmd *ecmd)
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{
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struct efx_nic *efx = net_dev->priv;
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int rc;
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mutex_lock(&efx->mac_lock);
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rc = falcon_xmac_get_settings(efx, ecmd);
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mutex_unlock(&efx->mac_lock);
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return rc;
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}
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/* This must be called with rtnl_lock held. */
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int efx_ethtool_set_settings(struct net_device *net_dev,
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struct ethtool_cmd *ecmd)
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{
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struct efx_nic *efx = net_dev->priv;
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int rc;
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mutex_lock(&efx->mac_lock);
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rc = falcon_xmac_set_settings(efx, ecmd);
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mutex_unlock(&efx->mac_lock);
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if (!rc)
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efx_reconfigure_port(efx);
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return rc;
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}
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static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
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struct ethtool_drvinfo *info)
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{
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struct efx_nic *efx = net_dev->priv;
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strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
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strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
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strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
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}
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static int efx_ethtool_get_stats_count(struct net_device *net_dev)
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{
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return EFX_ETHTOOL_NUM_STATS;
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}
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static void efx_ethtool_get_strings(struct net_device *net_dev,
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u32 string_set, u8 *strings)
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{
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struct ethtool_string *ethtool_strings =
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(struct ethtool_string *)strings;
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int i;
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if (string_set == ETH_SS_STATS)
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for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
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strncpy(ethtool_strings[i].name,
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efx_ethtool_stats[i].name,
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sizeof(ethtool_strings[i].name));
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}
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static void efx_ethtool_get_stats(struct net_device *net_dev,
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struct ethtool_stats *stats,
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u64 *data)
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{
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struct efx_nic *efx = net_dev->priv;
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struct efx_mac_stats *mac_stats = &efx->mac_stats;
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struct efx_ethtool_stat *stat;
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struct efx_channel *channel;
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int i;
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EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
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/* Update MAC and NIC statistics */
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net_dev->get_stats(net_dev);
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/* Fill detailed statistics buffer */
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for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
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stat = &efx_ethtool_stats[i];
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switch (stat->source) {
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case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
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data[i] = stat->get_stat((void *)mac_stats +
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stat->offset);
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break;
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case EFX_ETHTOOL_STAT_SOURCE_nic:
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data[i] = stat->get_stat((void *)efx + stat->offset);
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break;
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case EFX_ETHTOOL_STAT_SOURCE_channel:
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data[i] = 0;
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efx_for_each_channel(channel, efx)
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data[i] += stat->get_stat((void *)channel +
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stat->offset);
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break;
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}
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}
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}
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static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
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{
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struct efx_nic *efx = net_dev->priv;
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int rc;
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rc = ethtool_op_set_tx_csum(net_dev, enable);
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if (rc)
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return rc;
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efx_flush_queues(efx);
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return 0;
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}
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static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
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{
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struct efx_nic *efx = net_dev->priv;
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/* No way to stop the hardware doing the checks; we just
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* ignore the result.
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*/
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efx->rx_checksum_enabled = (enable ? 1 : 0);
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return 0;
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}
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static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
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{
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struct efx_nic *efx = net_dev->priv;
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return efx->rx_checksum_enabled;
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}
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/* Restart autonegotiation */
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static int efx_ethtool_nway_reset(struct net_device *net_dev)
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{
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struct efx_nic *efx = net_dev->priv;
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return mii_nway_restart(&efx->mii);
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}
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static u32 efx_ethtool_get_link(struct net_device *net_dev)
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{
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struct efx_nic *efx = net_dev->priv;
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return efx->link_up;
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}
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static int efx_ethtool_get_coalesce(struct net_device *net_dev,
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struct ethtool_coalesce *coalesce)
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{
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struct efx_nic *efx = net_dev->priv;
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struct efx_tx_queue *tx_queue;
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struct efx_rx_queue *rx_queue;
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struct efx_channel *channel;
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memset(coalesce, 0, sizeof(*coalesce));
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/* Find lowest IRQ moderation across all used TX queues */
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coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
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efx_for_each_tx_queue(tx_queue, efx) {
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channel = tx_queue->channel;
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if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
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if (channel->used_flags != EFX_USED_BY_RX_TX)
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coalesce->tx_coalesce_usecs_irq =
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channel->irq_moderation;
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else
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coalesce->tx_coalesce_usecs_irq = 0;
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}
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}
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/* Find lowest IRQ moderation across all used RX queues */
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coalesce->rx_coalesce_usecs_irq = ~((u32) 0);
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efx_for_each_rx_queue(rx_queue, efx) {
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channel = rx_queue->channel;
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if (channel->irq_moderation < coalesce->rx_coalesce_usecs_irq)
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coalesce->rx_coalesce_usecs_irq =
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channel->irq_moderation;
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}
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return 0;
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}
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/* Set coalescing parameters
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* The difficulties occur for shared channels
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*/
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static int efx_ethtool_set_coalesce(struct net_device *net_dev,
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struct ethtool_coalesce *coalesce)
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{
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struct efx_nic *efx = net_dev->priv;
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struct efx_channel *channel;
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struct efx_tx_queue *tx_queue;
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unsigned tx_usecs, rx_usecs;
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if (coalesce->use_adaptive_rx_coalesce ||
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coalesce->use_adaptive_tx_coalesce)
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return -EOPNOTSUPP;
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if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
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EFX_ERR(efx, "invalid coalescing setting. "
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"Only rx/tx_coalesce_usecs_irq are supported\n");
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return -EOPNOTSUPP;
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}
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rx_usecs = coalesce->rx_coalesce_usecs_irq;
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tx_usecs = coalesce->tx_coalesce_usecs_irq;
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/* If the channel is shared only allow RX parameters to be set */
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efx_for_each_tx_queue(tx_queue, efx) {
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if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
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tx_usecs) {
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EFX_ERR(efx, "Channel is shared. "
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"Only RX coalescing may be set\n");
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return -EOPNOTSUPP;
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}
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}
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efx_init_irq_moderation(efx, tx_usecs, rx_usecs);
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/* Reset channel to pick up new moderation value. Note that
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* this may change the value of the irq_moderation field
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* (e.g. to allow for hardware timer granularity).
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*/
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efx_for_each_channel(channel, efx)
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falcon_set_int_moderation(channel);
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return 0;
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}
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static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
|
||||
struct ethtool_pauseparam *pause)
|
||||
{
|
||||
struct efx_nic *efx = net_dev->priv;
|
||||
enum efx_fc_type flow_control = efx->flow_control;
|
||||
int rc;
|
||||
|
||||
flow_control &= ~(EFX_FC_RX | EFX_FC_TX | EFX_FC_AUTO);
|
||||
flow_control |= pause->rx_pause ? EFX_FC_RX : 0;
|
||||
flow_control |= pause->tx_pause ? EFX_FC_TX : 0;
|
||||
flow_control |= pause->autoneg ? EFX_FC_AUTO : 0;
|
||||
|
||||
/* Try to push the pause parameters */
|
||||
mutex_lock(&efx->mac_lock);
|
||||
rc = falcon_xmac_set_pause(efx, flow_control);
|
||||
mutex_unlock(&efx->mac_lock);
|
||||
|
||||
if (!rc)
|
||||
efx_reconfigure_port(efx);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
|
||||
struct ethtool_pauseparam *pause)
|
||||
{
|
||||
struct efx_nic *efx = net_dev->priv;
|
||||
|
||||
pause->rx_pause = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
|
||||
pause->tx_pause = (efx->flow_control & EFX_FC_TX) ? 1 : 0;
|
||||
pause->autoneg = (efx->flow_control & EFX_FC_AUTO) ? 1 : 0;
|
||||
}
|
||||
|
||||
|
||||
struct ethtool_ops efx_ethtool_ops = {
|
||||
.get_settings = efx_ethtool_get_settings,
|
||||
.set_settings = efx_ethtool_set_settings,
|
||||
.get_drvinfo = efx_ethtool_get_drvinfo,
|
||||
.nway_reset = efx_ethtool_nway_reset,
|
||||
.get_link = efx_ethtool_get_link,
|
||||
.get_coalesce = efx_ethtool_get_coalesce,
|
||||
.set_coalesce = efx_ethtool_set_coalesce,
|
||||
.get_pauseparam = efx_ethtool_get_pauseparam,
|
||||
.set_pauseparam = efx_ethtool_set_pauseparam,
|
||||
.get_rx_csum = efx_ethtool_get_rx_csum,
|
||||
.set_rx_csum = efx_ethtool_set_rx_csum,
|
||||
.get_tx_csum = ethtool_op_get_tx_csum,
|
||||
.set_tx_csum = efx_ethtool_set_tx_csum,
|
||||
.get_sg = ethtool_op_get_sg,
|
||||
.set_sg = ethtool_op_set_sg,
|
||||
.get_flags = ethtool_op_get_flags,
|
||||
.set_flags = ethtool_op_set_flags,
|
||||
.get_strings = efx_ethtool_get_strings,
|
||||
.phys_id = efx_ethtool_phys_id,
|
||||
.get_stats_count = efx_ethtool_get_stats_count,
|
||||
.get_ethtool_stats = efx_ethtool_get_stats,
|
||||
};
|
Reference in New Issue
Block a user