1 files changed, 1012 insertions, 0 deletions

diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
new file mode 100644
index 000000000000..bc4643af6dd1
--- /dev/null
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -0,0 +1,1012 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2005-2006 Fen Systems Ltd.
+ * Copyright 2006-2010 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 ethtool_string {
+	char name[ETH_GSTRING_LEN];
+};
+
+struct efx_ethtool_stat {
+	const char *name;
+	enum {
+		EFX_ETHTOOL_STAT_SOURCE_mac_stats,
+		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_ethtool_stat 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_ulong_stat(void *field)
+{
+	return *(unsigned long *)field;
+}
+
+static u64 efx_get_u64_stat(void *field)
+{
+	return *(u64 *) field;
+}
+
+static u64 efx_get_atomic_stat(void *field)
+{
+	return atomic_read((atomic_t *) field);
+}
+
+#define EFX_ETHTOOL_ULONG_MAC_STAT(field)			\
+	EFX_ETHTOOL_STAT(field, mac_stats, field, 		\
+			  unsigned long, efx_get_ulong_stat)
+
+#define EFX_ETHTOOL_U64_MAC_STAT(field)				\
+	EFX_ETHTOOL_STAT(field, mac_stats, field, 		\
+			  u64, efx_get_u64_stat)
+
+#define EFX_ETHTOOL_UINT_NIC_STAT(name)				\
+	EFX_ETHTOOL_STAT(name, nic, n_##name,			\
+			 unsigned int, efx_get_uint_stat)
+
+#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 struct efx_ethtool_stat efx_ethtool_stats[] = {
+	EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
+	EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
+	EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
+	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(pushes),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
+	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
+	EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
+	EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
+	EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
+	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
+	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
+	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
+	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
+	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
+};
+
+/* Number of ethtool statistics */
+#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
+
+#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
+
+/**************************************************************************
+ *
+ * Ethtool operations
+ *
+ **************************************************************************
+ */
+
+/* Identify device by flashing LEDs */
+static int efx_ethtool_phys_id(struct net_device *net_dev,
+			       enum ethtool_phys_id_state state)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	enum efx_led_mode mode = EFX_LED_DEFAULT;
+
+	switch (state) {
+	case ETHTOOL_ID_ON:
+		mode = EFX_LED_ON;
+		break;
+	case ETHTOOL_ID_OFF:
+		mode = EFX_LED_OFF;
+		break;
+	case ETHTOOL_ID_INACTIVE:
+		mode = EFX_LED_DEFAULT;
+		break;
+	case ETHTOOL_ID_ACTIVE:
+		return 1;	/* cycle on/off once per second */
+	}
+
+	efx->type->set_id_led(efx, mode);
+	return 0;
+}
+
+/* This must be called with rtnl_lock held. */
+static int efx_ethtool_get_settings(struct net_device *net_dev,
+				    struct ethtool_cmd *ecmd)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct efx_link_state *link_state = &efx->link_state;
+
+	mutex_lock(&efx->mac_lock);
+	efx->phy_op->get_settings(efx, ecmd);
+	mutex_unlock(&efx->mac_lock);
+
+	/* GMAC does not support 1000Mbps HD */
+	ecmd->supported &= ~SUPPORTED_1000baseT_Half;
+	/* Both MACs support pause frames (bidirectional and respond-only) */
+	ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+
+	if (LOOPBACK_INTERNAL(efx)) {
+		ethtool_cmd_speed_set(ecmd, link_state->speed);
+		ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
+	}
+
+	return 0;
+}
+
+/* This must be called with rtnl_lock held. */
+static int efx_ethtool_set_settings(struct net_device *net_dev,
+				    struct ethtool_cmd *ecmd)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	int rc;
+
+	/* GMAC does not support 1000Mbps HD */
+	if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
+	    (ecmd->duplex != DUPLEX_FULL)) {
+		netif_dbg(efx, drv, efx->net_dev,
+			  "rejecting unsupported 1000Mbps HD setting\n");
+		return -EINVAL;
+	}
+
+	mutex_lock(&efx->mac_lock);
+	rc = efx->phy_op->set_settings(efx, ecmd);
+	mutex_unlock(&efx->mac_lock);
+	return rc;
+}
+
+static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
+				    struct ethtool_drvinfo *info)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
+	strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
+	if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+		efx_mcdi_print_fwver(efx, info->fw_version,
+				     sizeof(info->fw_version));
+	strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
+}
+
+static int efx_ethtool_get_regs_len(struct net_device *net_dev)
+{
+	return efx_nic_get_regs_len(netdev_priv(net_dev));
+}
+
+static void efx_ethtool_get_regs(struct net_device *net_dev,
+				 struct ethtool_regs *regs, void *buf)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	regs->version = efx->type->revision;
+	efx_nic_get_regs(efx, buf);
+}
+
+static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	return efx->msg_enable;
+}
+
+static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	efx->msg_enable = msg_enable;
+}
+
+/**
+ * efx_fill_test - fill in an individual self-test entry
+ * @test_index:		Index of the test
+ * @strings:		Ethtool strings, or %NULL
+ * @data:		Ethtool test results, or %NULL
+ * @test:		Pointer to test result (used only if data != %NULL)
+ * @unit_format:	Unit name format (e.g. "chan\%d")
+ * @unit_id:		Unit id (e.g. 0 for "chan0")
+ * @test_format:	Test name format (e.g. "loopback.\%s.tx.sent")
+ * @test_id:		Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
+ *
+ * Fill in an individual self-test entry.
+ */
+static void efx_fill_test(unsigned int test_index,
+			  struct ethtool_string *strings, u64 *data,
+			  int *test, const char *unit_format, int unit_id,
+			  const char *test_format, const char *test_id)
+{
+	struct ethtool_string unit_str, test_str;
+
+	/* Fill data value, if applicable */
+	if (data)
+		data[test_index] = *test;
+
+	/* Fill string, if applicable */
+	if (strings) {
+		if (strchr(unit_format, '%'))
+			snprintf(unit_str.name, sizeof(unit_str.name),
+				 unit_format, unit_id);
+		else
+			strcpy(unit_str.name, unit_format);
+		snprintf(test_str.name, sizeof(test_str.name),
+			 test_format, test_id);
+		snprintf(strings[test_index].name,
+			 sizeof(strings[test_index].name),
+			 "%-6s %-24s", unit_str.name, test_str.name);
+	}
+}
+
+#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
+#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
+#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
+#define EFX_LOOPBACK_NAME(_mode, _counter)			\
+	"loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
+
+/**
+ * efx_fill_loopback_test - fill in a block of loopback self-test entries
+ * @efx:		Efx NIC
+ * @lb_tests:		Efx loopback self-test results structure
+ * @mode:		Loopback test mode
+ * @test_index:		Starting index of the test
+ * @strings:		Ethtool strings, or %NULL
+ * @data:		Ethtool test results, or %NULL
+ */
+static int efx_fill_loopback_test(struct efx_nic *efx,
+				  struct efx_loopback_self_tests *lb_tests,
+				  enum efx_loopback_mode mode,
+				  unsigned int test_index,
+				  struct ethtool_string *strings, u64 *data)
+{
+	struct efx_channel *channel = efx_get_channel(efx, 0);
+	struct efx_tx_queue *tx_queue;
+
+	efx_for_each_channel_tx_queue(tx_queue, channel) {
+		efx_fill_test(test_index++, strings, data,
+			      &lb_tests->tx_sent[tx_queue->queue],
+			      EFX_TX_QUEUE_NAME(tx_queue),
+			      EFX_LOOPBACK_NAME(mode, "tx_sent"));
+		efx_fill_test(test_index++, strings, data,
+			      &lb_tests->tx_done[tx_queue->queue],
+			      EFX_TX_QUEUE_NAME(tx_queue),
+			      EFX_LOOPBACK_NAME(mode, "tx_done"));
+	}
+	efx_fill_test(test_index++, strings, data,
+		      &lb_tests->rx_good,
+		      "rx", 0,
+		      EFX_LOOPBACK_NAME(mode, "rx_good"));
+	efx_fill_test(test_index++, strings, data,
+		      &lb_tests->rx_bad,
+		      "rx", 0,
+		      EFX_LOOPBACK_NAME(mode, "rx_bad"));
+
+	return test_index;
+}
+
+/**
+ * efx_ethtool_fill_self_tests - get self-test details
+ * @efx:		Efx NIC
+ * @tests:		Efx self-test results structure, or %NULL
+ * @strings:		Ethtool strings, or %NULL
+ * @data:		Ethtool test results, or %NULL
+ */
+static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
+				       struct efx_self_tests *tests,
+				       struct ethtool_string *strings,
+				       u64 *data)
+{
+	struct efx_channel *channel;
+	unsigned int n = 0, i;
+	enum efx_loopback_mode mode;
+
+	efx_fill_test(n++, strings, data, &tests->phy_alive,
+		      "phy", 0, "alive", NULL);
+	efx_fill_test(n++, strings, data, &tests->nvram,
+		      "core", 0, "nvram", NULL);
+	efx_fill_test(n++, strings, data, &tests->interrupt,
+		      "core", 0, "interrupt", NULL);
+
+	/* Event queues */
+	efx_for_each_channel(channel, efx) {
+		efx_fill_test(n++, strings, data,
+			      &tests->eventq_dma[channel->channel],
+			      EFX_CHANNEL_NAME(channel),
+			      "eventq.dma", NULL);
+		efx_fill_test(n++, strings, data,
+			      &tests->eventq_int[channel->channel],
+			      EFX_CHANNEL_NAME(channel),
+			      "eventq.int", NULL);
+		efx_fill_test(n++, strings, data,
+			      &tests->eventq_poll[channel->channel],
+			      EFX_CHANNEL_NAME(channel),
+			      "eventq.poll", NULL);
+	}
+
+	efx_fill_test(n++, strings, data, &tests->registers,
+		      "core", 0, "registers", NULL);
+
+	if (efx->phy_op->run_tests != NULL) {
+		EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
+
+		for (i = 0; true; ++i) {
+			const char *name;
+
+			EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
+			name = efx->phy_op->test_name(efx, i);
+			if (name == NULL)
+				break;
+
+			efx_fill_test(n++, strings, data, &tests->phy_ext[i],
+				      "phy", 0, name, NULL);
+		}
+	}
+
+	/* Loopback tests */
+	for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
+		if (!(efx->loopback_modes & (1 << mode)))
+			continue;
+		n = efx_fill_loopback_test(efx,
+					   &tests->loopback[mode], mode, n,
+					   strings, data);
+	}
+
+	return n;
+}
+
+static int efx_ethtool_get_sset_count(struct net_device *net_dev,
+				      int string_set)
+{
+	switch (string_set) {
+	case ETH_SS_STATS:
+		return EFX_ETHTOOL_NUM_STATS;
+	case ETH_SS_TEST:
+		return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
+						   NULL, NULL, NULL);
+	default:
+		return -EINVAL;
+	}
+}
+
+static void efx_ethtool_get_strings(struct net_device *net_dev,
+				    u32 string_set, u8 *strings)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct ethtool_string *ethtool_strings =
+		(struct ethtool_string *)strings;
+	int i;
+
+	switch (string_set) {
+	case ETH_SS_STATS:
+		for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
+			strncpy(ethtool_strings[i].name,
+				efx_ethtool_stats[i].name,
+				sizeof(ethtool_strings[i].name));
+		break;
+	case ETH_SS_TEST:
+		efx_ethtool_fill_self_tests(efx, NULL,
+					    ethtool_strings, NULL);
+		break;
+	default:
+		/* No other string sets */
+		break;
+	}
+}
+
+static void efx_ethtool_get_stats(struct net_device *net_dev,
+				  struct ethtool_stats *stats,
+				  u64 *data)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct efx_mac_stats *mac_stats = &efx->mac_stats;
+	struct efx_ethtool_stat *stat;
+	struct efx_channel *channel;
+	struct efx_tx_queue *tx_queue;
+	struct rtnl_link_stats64 temp;
+	int i;
+
+	EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
+
+	/* Update MAC and NIC statistics */
+	dev_get_stats(net_dev, &temp);
+
+	/* Fill detailed statistics buffer */
+	for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
+		stat = &efx_ethtool_stats[i];
+		switch (stat->source) {
+		case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
+			data[i] = stat->get_stat((void *)mac_stats +
+						 stat->offset);
+			break;
+		case EFX_ETHTOOL_STAT_SOURCE_nic:
+			data[i] = stat->get_stat((void *)efx + stat->offset);
+			break;
+		case EFX_ETHTOOL_STAT_SOURCE_channel:
+			data[i] = 0;
+			efx_for_each_channel(channel, efx)
+				data[i] += stat->get_stat((void *)channel +
+							  stat->offset);
+			break;
+		case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
+			data[i] = 0;
+			efx_for_each_channel(channel, efx) {
+				efx_for_each_channel_tx_queue(tx_queue, channel)
+					data[i] +=
+						stat->get_stat((void *)tx_queue
+							       + stat->offset);
+			}
+			break;
+		}
+	}
+}
+
+static void efx_ethtool_self_test(struct net_device *net_dev,
+				  struct ethtool_test *test, u64 *data)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct efx_self_tests *efx_tests;
+	int already_up;
+	int rc = -ENOMEM;
+
+	efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
+	if (!efx_tests)
+		goto fail;
+
+
+	ASSERT_RTNL();
+	if (efx->state != STATE_RUNNING) {
+		rc = -EIO;
+		goto fail1;
+	}
+
+	netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
+		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
+
+	/* We need rx buffers and interrupts. */
+	already_up = (efx->net_dev->flags & IFF_UP);
+	if (!already_up) {
+		rc = dev_open(efx->net_dev);
+		if (rc) {
+			netif_err(efx, drv, efx->net_dev,
+				  "failed opening device.\n");
+			goto fail1;
+		}
+	}
+
+	rc = efx_selftest(efx, efx_tests, test->flags);
+
+	if (!already_up)
+		dev_close(efx->net_dev);
+
+	netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
+		   rc == 0 ? "passed" : "failed",
+		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
+
+fail1:
+	/* Fill ethtool results structures */
+	efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
+	kfree(efx_tests);
+fail:
+	if (rc)
+		test->flags |= ETH_TEST_FL_FAILED;
+}
+
+/* Restart autonegotiation */
+static int efx_ethtool_nway_reset(struct net_device *net_dev)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	return mdio45_nway_restart(&efx->mdio);
+}
+
+static int efx_ethtool_get_coalesce(struct net_device *net_dev,
+				    struct ethtool_coalesce *coalesce)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct efx_channel *channel;
+
+	memset(coalesce, 0, sizeof(*coalesce));
+
+	/* Find lowest IRQ moderation across all used TX queues */
+	coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
+	efx_for_each_channel(channel, efx) {
+		if (!efx_channel_has_tx_queues(channel))
+			continue;
+		if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
+			if (channel->channel < efx->n_rx_channels)
+				coalesce->tx_coalesce_usecs_irq =
+					channel->irq_moderation;
+			else
+				coalesce->tx_coalesce_usecs_irq = 0;
+		}
+	}
+
+	coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
+	coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
+
+	coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
+	coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
+
+	return 0;
+}
+
+/* Set coalescing parameters
+ * The difficulties occur for shared channels
+ */
+static int efx_ethtool_set_coalesce(struct net_device *net_dev,
+				    struct ethtool_coalesce *coalesce)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct efx_channel *channel;
+	unsigned tx_usecs, rx_usecs, adaptive;
+
+	if (coalesce->use_adaptive_tx_coalesce)
+		return -EOPNOTSUPP;
+
+	if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
+		netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
+			  "Only rx/tx_coalesce_usecs_irq are supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	rx_usecs = coalesce->rx_coalesce_usecs_irq;
+	tx_usecs = coalesce->tx_coalesce_usecs_irq;
+	adaptive = coalesce->use_adaptive_rx_coalesce;
+
+	/* If the channel is shared only allow RX parameters to be set */
+	efx_for_each_channel(channel, efx) {
+		if (efx_channel_has_rx_queue(channel) &&
+		    efx_channel_has_tx_queues(channel) &&
+		    tx_usecs) {
+			netif_err(efx, drv, efx->net_dev, "Channel is shared. "
+				  "Only RX coalescing may be set\n");
+			return -EOPNOTSUPP;
+		}
+	}
+
+	efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
+	efx_for_each_channel(channel, efx)
+		efx->type->push_irq_moderation(channel);
+
+	return 0;
+}
+
+static void efx_ethtool_get_ringparam(struct net_device *net_dev,
+				      struct ethtool_ringparam *ring)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
+	ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
+	ring->rx_mini_max_pending = 0;
+	ring->rx_jumbo_max_pending = 0;
+	ring->rx_pending = efx->rxq_entries;
+	ring->tx_pending = efx->txq_entries;
+	ring->rx_mini_pending = 0;
+	ring->rx_jumbo_pending = 0;
+}
+
+static int efx_ethtool_set_ringparam(struct net_device *net_dev,
+				     struct ethtool_ringparam *ring)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
+	    ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
+	    ring->tx_pending > EFX_MAX_DMAQ_SIZE)
+		return -EINVAL;
+
+	if (ring->rx_pending < EFX_MIN_RING_SIZE ||
+	    ring->tx_pending < EFX_MIN_RING_SIZE) {
+		netif_err(efx, drv, efx->net_dev,
+			  "TX and RX queues cannot be smaller than %ld\n",
+			  EFX_MIN_RING_SIZE);
+		return -EINVAL;
+	}
+
+	return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
+}
+
+static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
+				      struct ethtool_pauseparam *pause)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	u8 wanted_fc, old_fc;
+	u32 old_adv;
+	bool reset;
+	int rc = 0;
+
+	mutex_lock(&efx->mac_lock);
+
+	wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
+		     (pause->tx_pause ? EFX_FC_TX : 0) |
+		     (pause->autoneg ? EFX_FC_AUTO : 0));
+
+	if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
+		netif_dbg(efx, drv, efx->net_dev,
+			  "Flow control unsupported: tx ON rx OFF\n");
+		rc = -EINVAL;
+		goto out;
+	}
+
+	if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
+		netif_dbg(efx, drv, efx->net_dev,
+			  "Autonegotiation is disabled\n");
+		rc = -EINVAL;
+		goto out;
+	}
+
+	/* TX flow control may automatically turn itself off if the
+	 * link partner (intermittently) stops responding to pause
+	 * frames. There isn't any indication that this has happened,
+	 * so the best we do is leave it up to the user to spot this
+	 * and fix it be cycling transmit flow control on this end. */
+	reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
+	if (EFX_WORKAROUND_11482(efx) && reset) {
+		if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
+			/* Recover by resetting the EM block */
+			falcon_stop_nic_stats(efx);
+			falcon_drain_tx_fifo(efx);
+			efx->mac_op->reconfigure(efx);
+			falcon_start_nic_stats(efx);
+		} else {
+			/* Schedule a reset to recover */
+			efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
+		}
+	}
+
+	old_adv = efx->link_advertising;
+	old_fc = efx->wanted_fc;
+	efx_link_set_wanted_fc(efx, wanted_fc);
+	if (efx->link_advertising != old_adv ||
+	    (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
+		rc = efx->phy_op->reconfigure(efx);
+		if (rc) {
+			netif_err(efx, drv, efx->net_dev,
+				  "Unable to advertise requested flow "
+				  "control setting\n");
+			goto out;
+		}
+	}
+
+	/* Reconfigure the MAC. The PHY *may* generate a link state change event
+	 * if the user just changed the advertised capabilities, but there's no
+	 * harm doing this twice */
+	efx->mac_op->reconfigure(efx);
+
+out:
+	mutex_unlock(&efx->mac_lock);
+
+	return rc;
+}
+
+static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
+				       struct ethtool_pauseparam *pause)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
+	pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
+	pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
+}
+
+
+static void efx_ethtool_get_wol(struct net_device *net_dev,
+				struct ethtool_wolinfo *wol)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	return efx->type->get_wol(efx, wol);
+}
+
+
+static int efx_ethtool_set_wol(struct net_device *net_dev,
+			       struct ethtool_wolinfo *wol)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	return efx->type->set_wol(efx, wol->wolopts);
+}
+
+static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	int rc;
+
+	rc = efx->type->map_reset_flags(flags);
+	if (rc < 0)
+		return rc;
+
+	return efx_reset(efx, rc);
+}
+
+static int
+efx_ethtool_get_rxnfc(struct net_device *net_dev,
+		      struct ethtool_rxnfc *info, void *rules __always_unused)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	switch (info->cmd) {
+	case ETHTOOL_GRXRINGS:
+		info->data = efx->n_rx_channels;
+		return 0;
+
+	case ETHTOOL_GRXFH: {
+		unsigned min_revision = 0;
+
+		info->data = 0;
+		switch (info->flow_type) {
+		case TCP_V4_FLOW:
+			info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+			/* fall through */
+		case UDP_V4_FLOW:
+		case SCTP_V4_FLOW:
+		case AH_ESP_V4_FLOW:
+		case IPV4_FLOW:
+			info->data |= RXH_IP_SRC | RXH_IP_DST;
+			min_revision = EFX_REV_FALCON_B0;
+			break;
+		case TCP_V6_FLOW:
+			info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+			/* fall through */
+		case UDP_V6_FLOW:
+		case SCTP_V6_FLOW:
+		case AH_ESP_V6_FLOW:
+		case IPV6_FLOW:
+			info->data |= RXH_IP_SRC | RXH_IP_DST;
+			min_revision = EFX_REV_SIENA_A0;
+			break;
+		default:
+			break;
+		}
+		if (efx_nic_rev(efx) < min_revision)
+			info->data = 0;
+		return 0;
+	}
+
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
+				     struct ethtool_rx_ntuple *ntuple)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
+	struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
+	struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
+	struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
+	struct efx_filter_spec filter;
+	int rc;
+
+	/* Range-check action */
+	if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
+	    ntuple->fs.action >= (s32)efx->n_rx_channels)
+		return -EINVAL;
+
+	if (~ntuple->fs.data_mask)
+		return -EINVAL;
+
+	efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
+			   (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
+			   0xfff : ntuple->fs.action);
+
+	switch (ntuple->fs.flow_type) {
+	case TCP_V4_FLOW:
+	case UDP_V4_FLOW: {
+		u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
+			    IPPROTO_TCP : IPPROTO_UDP);
+
+		/* Must match all of destination, */
+		if (ip_mask->ip4dst | ip_mask->pdst)
+			return -EINVAL;
+		/* all or none of source, */
+		if ((ip_mask->ip4src | ip_mask->psrc) &&
+		    ((__force u32)~ip_mask->ip4src |
+		     (__force u16)~ip_mask->psrc))
+			return -EINVAL;
+		/* and nothing else */
+		if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
+			return -EINVAL;
+
+		if (!ip_mask->ip4src)
+			rc = efx_filter_set_ipv4_full(&filter, proto,
+						      ip_entry->ip4dst,
+						      ip_entry->pdst,
+						      ip_entry->ip4src,
+						      ip_entry->psrc);
+		else
+			rc = efx_filter_set_ipv4_local(&filter, proto,
+						       ip_entry->ip4dst,
+						       ip_entry->pdst);
+		if (rc)
+			return rc;
+		break;
+	}
+
+	case ETHER_FLOW:
+		/* Must match all of destination, */
+		if (!is_zero_ether_addr(mac_mask->h_dest))
+			return -EINVAL;
+		/* all or none of VID, */
+		if (ntuple->fs.vlan_tag_mask != 0xf000 &&
+		    ntuple->fs.vlan_tag_mask != 0xffff)
+			return -EINVAL;
+		/* and nothing else */
+		if (!is_broadcast_ether_addr(mac_mask->h_source) ||
+		    mac_mask->h_proto != htons(0xffff))
+			return -EINVAL;
+
+		rc = efx_filter_set_eth_local(
+			&filter,
+			(ntuple->fs.vlan_tag_mask == 0xf000) ?
+			ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
+			mac_entry->h_dest);
+		if (rc)
+			return rc;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
+		return efx_filter_remove_filter(efx, &filter);
+
+	rc = efx_filter_insert_filter(efx, &filter, true);
+	return rc < 0 ? rc : 0;
+}
+
+static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
+				      struct ethtool_rxfh_indir *indir)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	size_t copy_size =
+		min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
+
+	if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+		return -EOPNOTSUPP;
+
+	indir->size = ARRAY_SIZE(efx->rx_indir_table);
+	memcpy(indir->ring_index, efx->rx_indir_table,
+	       copy_size * sizeof(indir->ring_index[0]));
+	return 0;
+}
+
+static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
+				      const struct ethtool_rxfh_indir *indir)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	size_t i;
+
+	if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
+		return -EOPNOTSUPP;
+
+	/* Validate size and indices */
+	if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
+		return -EINVAL;
+	for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
+		if (indir->ring_index[i] >= efx->n_rx_channels)
+			return -EINVAL;
+
+	memcpy(efx->rx_indir_table, indir->ring_index,
+	       sizeof(efx->rx_indir_table));
+	efx_nic_push_rx_indir_table(efx);
+	return 0;
+}
+
+const struct ethtool_ops efx_ethtool_ops = {
+	.get_settings		= efx_ethtool_get_settings,
+	.set_settings		= efx_ethtool_set_settings,
+	.get_drvinfo		= efx_ethtool_get_drvinfo,
+	.get_regs_len		= efx_ethtool_get_regs_len,
+	.get_regs		= efx_ethtool_get_regs,
+	.get_msglevel		= efx_ethtool_get_msglevel,
+	.set_msglevel		= efx_ethtool_set_msglevel,
+	.nway_reset		= efx_ethtool_nway_reset,
+	.get_link		= ethtool_op_get_link,
+	.get_coalesce		= efx_ethtool_get_coalesce,
+	.set_coalesce		= efx_ethtool_set_coalesce,
+	.get_ringparam		= efx_ethtool_get_ringparam,
+	.set_ringparam		= efx_ethtool_set_ringparam,
+	.get_pauseparam         = efx_ethtool_get_pauseparam,
+	.set_pauseparam         = efx_ethtool_set_pauseparam,
+	.get_sset_count		= efx_ethtool_get_sset_count,
+	.self_test		= efx_ethtool_self_test,
+	.get_strings		= efx_ethtool_get_strings,
+	.set_phys_id		= efx_ethtool_phys_id,
+	.get_ethtool_stats	= efx_ethtool_get_stats,
+	.get_wol                = efx_ethtool_get_wol,
+	.set_wol                = efx_ethtool_set_wol,
+	.reset			= efx_ethtool_reset,
+	.get_rxnfc		= efx_ethtool_get_rxnfc,
+	.set_rx_ntuple		= efx_ethtool_set_rx_ntuple,
+	.get_rxfh_indir		= efx_ethtool_get_rxfh_indir,
+	.set_rxfh_indir		= efx_ethtool_set_rxfh_indir,
+};