mirror of https://gitee.com/openkylin/linux.git
458 lines
13 KiB
C
458 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2019 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/module.h>
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#include <linux/netdevice.h>
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#include "net_driver.h"
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#include "mcdi.h"
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#include "nic.h"
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#include "selftest.h"
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#include "ethtool_common.h"
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struct efx_sw_stat_desc {
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const char *name;
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enum {
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EFX_ETHTOOL_STAT_SOURCE_nic,
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EFX_ETHTOOL_STAT_SOURCE_channel,
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EFX_ETHTOOL_STAT_SOURCE_tx_queue
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} source;
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unsigned int 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_sw_stat_desc 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_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_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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#define EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(field) \
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EFX_ETHTOOL_STAT(field, channel, field, \
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unsigned int, efx_get_uint_stat)
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#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
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EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
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unsigned int, efx_get_uint_stat)
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static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
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EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
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EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
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EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
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EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
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EFX_ETHTOOL_UINT_TXQ_STAT(tso_fallbacks),
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EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
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EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
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EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets),
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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_inner_ip_hdr_chksum_err),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect),
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#ifdef CONFIG_RFS_ACCEL
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EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),
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EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),
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#endif
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};
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#define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
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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 = netdev_priv(net_dev);
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strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
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strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
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efx_mcdi_print_fwver(efx, info->fw_version,
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sizeof(info->fw_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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u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
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{
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struct efx_nic *efx = netdev_priv(net_dev);
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return efx->msg_enable;
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}
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void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
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{
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struct efx_nic *efx = netdev_priv(net_dev);
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efx->msg_enable = msg_enable;
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}
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void efx_ethtool_get_pauseparam(struct net_device *net_dev,
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struct ethtool_pauseparam *pause)
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{
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struct efx_nic *efx = netdev_priv(net_dev);
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pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
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pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
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pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
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}
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/**
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* efx_fill_test - fill in an individual self-test entry
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* @test_index: Index of the test
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* @strings: Ethtool strings, or %NULL
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* @data: Ethtool test results, or %NULL
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* @test: Pointer to test result (used only if data != %NULL)
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* @unit_format: Unit name format (e.g. "chan\%d")
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* @unit_id: Unit id (e.g. 0 for "chan0")
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* @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
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* @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
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*
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* Fill in an individual self-test entry.
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*/
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static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
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int *test, const char *unit_format, int unit_id,
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const char *test_format, const char *test_id)
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{
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char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
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/* Fill data value, if applicable */
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if (data)
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data[test_index] = *test;
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/* Fill string, if applicable */
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if (strings) {
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if (strchr(unit_format, '%'))
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snprintf(unit_str, sizeof(unit_str),
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unit_format, unit_id);
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else
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strcpy(unit_str, unit_format);
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snprintf(test_str, sizeof(test_str), test_format, test_id);
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snprintf(strings + test_index * ETH_GSTRING_LEN,
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ETH_GSTRING_LEN,
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"%-6s %-24s", unit_str, test_str);
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}
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}
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#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
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#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
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#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
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#define EFX_LOOPBACK_NAME(_mode, _counter) \
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"loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
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/**
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* efx_fill_loopback_test - fill in a block of loopback self-test entries
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* @efx: Efx NIC
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* @lb_tests: Efx loopback self-test results structure
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* @mode: Loopback test mode
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* @test_index: Starting index of the test
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* @strings: Ethtool strings, or %NULL
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* @data: Ethtool test results, or %NULL
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*
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* Fill in a block of loopback self-test entries. Return new test
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* index.
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*/
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static int efx_fill_loopback_test(struct efx_nic *efx,
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struct efx_loopback_self_tests *lb_tests,
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enum efx_loopback_mode mode,
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unsigned int test_index,
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u8 *strings, u64 *data)
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{
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struct efx_channel *channel =
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efx_get_channel(efx, efx->tx_channel_offset);
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struct efx_tx_queue *tx_queue;
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efx_for_each_channel_tx_queue(tx_queue, channel) {
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efx_fill_test(test_index++, strings, data,
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&lb_tests->tx_sent[tx_queue->queue],
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EFX_TX_QUEUE_NAME(tx_queue),
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EFX_LOOPBACK_NAME(mode, "tx_sent"));
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efx_fill_test(test_index++, strings, data,
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&lb_tests->tx_done[tx_queue->queue],
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EFX_TX_QUEUE_NAME(tx_queue),
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EFX_LOOPBACK_NAME(mode, "tx_done"));
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}
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efx_fill_test(test_index++, strings, data,
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&lb_tests->rx_good,
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"rx", 0,
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EFX_LOOPBACK_NAME(mode, "rx_good"));
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efx_fill_test(test_index++, strings, data,
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&lb_tests->rx_bad,
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"rx", 0,
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EFX_LOOPBACK_NAME(mode, "rx_bad"));
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return test_index;
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}
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/**
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* efx_ethtool_fill_self_tests - get self-test details
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* @efx: Efx NIC
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* @tests: Efx self-test results structure, or %NULL
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* @strings: Ethtool strings, or %NULL
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* @data: Ethtool test results, or %NULL
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*
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* Get self-test number of strings, strings, and/or test results.
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* Return number of strings (== number of test results).
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*
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* The reason for merging these three functions is to make sure that
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* they can never be inconsistent.
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*/
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int efx_ethtool_fill_self_tests(struct efx_nic *efx,
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struct efx_self_tests *tests,
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u8 *strings, u64 *data)
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{
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struct efx_channel *channel;
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unsigned int n = 0, i;
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enum efx_loopback_mode mode;
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efx_fill_test(n++, strings, data, &tests->phy_alive,
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"phy", 0, "alive", NULL);
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efx_fill_test(n++, strings, data, &tests->nvram,
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"core", 0, "nvram", NULL);
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efx_fill_test(n++, strings, data, &tests->interrupt,
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"core", 0, "interrupt", NULL);
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/* Event queues */
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efx_for_each_channel(channel, efx) {
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efx_fill_test(n++, strings, data,
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&tests->eventq_dma[channel->channel],
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EFX_CHANNEL_NAME(channel),
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"eventq.dma", NULL);
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efx_fill_test(n++, strings, data,
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&tests->eventq_int[channel->channel],
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EFX_CHANNEL_NAME(channel),
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"eventq.int", NULL);
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}
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efx_fill_test(n++, strings, data, &tests->memory,
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"core", 0, "memory", NULL);
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efx_fill_test(n++, strings, data, &tests->registers,
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"core", 0, "registers", NULL);
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if (efx->phy_op->run_tests != NULL) {
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EFX_WARN_ON_PARANOID(efx->phy_op->test_name == NULL);
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for (i = 0; true; ++i) {
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const char *name;
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EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
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name = efx->phy_op->test_name(efx, i);
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if (name == NULL)
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break;
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efx_fill_test(n++, strings, data, &tests->phy_ext[i],
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"phy", 0, name, NULL);
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}
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}
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/* Loopback tests */
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for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
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if (!(efx->loopback_modes & (1 << mode)))
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continue;
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n = efx_fill_loopback_test(efx,
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&tests->loopback[mode], mode, n,
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strings, data);
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}
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return n;
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}
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static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
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{
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size_t n_stats = 0;
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struct efx_channel *channel;
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efx_for_each_channel(channel, efx) {
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if (efx_channel_has_tx_queues(channel)) {
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n_stats++;
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if (strings != NULL) {
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snprintf(strings, ETH_GSTRING_LEN,
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"tx-%u.tx_packets",
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channel->tx_queue[0].queue /
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EFX_TXQ_TYPES);
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strings += ETH_GSTRING_LEN;
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}
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}
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}
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efx_for_each_channel(channel, efx) {
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if (efx_channel_has_rx_queue(channel)) {
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n_stats++;
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if (strings != NULL) {
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snprintf(strings, ETH_GSTRING_LEN,
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"rx-%d.rx_packets", channel->channel);
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strings += ETH_GSTRING_LEN;
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}
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}
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}
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if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
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unsigned short xdp;
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for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
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n_stats++;
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if (strings) {
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snprintf(strings, ETH_GSTRING_LEN,
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"tx-xdp-cpu-%hu.tx_packets", xdp);
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strings += ETH_GSTRING_LEN;
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}
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}
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}
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return n_stats;
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}
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int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
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{
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struct efx_nic *efx = netdev_priv(net_dev);
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switch (string_set) {
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case ETH_SS_STATS:
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return efx->type->describe_stats(efx, NULL) +
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EFX_ETHTOOL_SW_STAT_COUNT +
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efx_describe_per_queue_stats(efx, NULL) +
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efx_ptp_describe_stats(efx, NULL);
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case ETH_SS_TEST:
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return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
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default:
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return -EINVAL;
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}
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}
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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 efx_nic *efx = netdev_priv(net_dev);
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int i;
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switch (string_set) {
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case ETH_SS_STATS:
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strings += (efx->type->describe_stats(efx, strings) *
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ETH_GSTRING_LEN);
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for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
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strlcpy(strings + i * ETH_GSTRING_LEN,
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efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
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strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
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strings += (efx_describe_per_queue_stats(efx, strings) *
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ETH_GSTRING_LEN);
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efx_ptp_describe_stats(efx, strings);
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break;
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case ETH_SS_TEST:
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efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
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break;
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default:
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/* No other string sets */
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break;
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}
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}
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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 = netdev_priv(net_dev);
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const struct efx_sw_stat_desc *stat;
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struct efx_channel *channel;
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struct efx_tx_queue *tx_queue;
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struct efx_rx_queue *rx_queue;
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int i;
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spin_lock_bh(&efx->stats_lock);
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/* Get NIC statistics */
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data += efx->type->update_stats(efx, data, NULL);
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/* Get software statistics */
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for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
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stat = &efx_sw_stat_desc[i];
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switch (stat->source) {
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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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case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
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data[i] = 0;
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efx_for_each_channel(channel, efx) {
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efx_for_each_channel_tx_queue(tx_queue, channel)
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data[i] +=
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stat->get_stat((void *)tx_queue
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+ stat->offset);
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}
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break;
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}
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}
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data += EFX_ETHTOOL_SW_STAT_COUNT;
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spin_unlock_bh(&efx->stats_lock);
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efx_for_each_channel(channel, efx) {
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if (efx_channel_has_tx_queues(channel)) {
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*data = 0;
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efx_for_each_channel_tx_queue(tx_queue, channel) {
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*data += tx_queue->tx_packets;
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}
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data++;
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}
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}
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efx_for_each_channel(channel, efx) {
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if (efx_channel_has_rx_queue(channel)) {
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*data = 0;
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efx_for_each_channel_rx_queue(rx_queue, channel) {
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*data += rx_queue->rx_packets;
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}
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data++;
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}
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}
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if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
|
|
int xdp;
|
|
|
|
for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
|
|
data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
|
|
data++;
|
|
}
|
|
}
|
|
|
|
efx_ptp_update_stats(efx, data);
|
|
}
|