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1187 lines
31 KiB
1187 lines
31 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* Copyright(c) 2013 - 2019 Intel Corporation. */ |
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#include <linux/ethtool.h> |
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#include <linux/vmalloc.h> |
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#include "fm10k.h" |
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struct fm10k_stats { |
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/* The stat_string is expected to be a format string formatted using |
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* vsnprintf by fm10k_add_stat_strings. Every member of a stats array |
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* should use the same format specifiers as they will be formatted |
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* using the same variadic arguments. |
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*/ |
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char stat_string[ETH_GSTRING_LEN]; |
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int sizeof_stat; |
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int stat_offset; |
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}; |
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#define FM10K_STAT_FIELDS(_type, _name, _stat) { \ |
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.stat_string = _name, \ |
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.sizeof_stat = sizeof_field(_type, _stat), \ |
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.stat_offset = offsetof(_type, _stat) \ |
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} |
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/* netdevice statistics */ |
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#define FM10K_NETDEV_STAT(_net_stat) \ |
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FM10K_STAT_FIELDS(struct net_device_stats, __stringify(_net_stat), \ |
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_net_stat) |
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static const struct fm10k_stats fm10k_gstrings_net_stats[] = { |
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FM10K_NETDEV_STAT(tx_packets), |
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FM10K_NETDEV_STAT(tx_bytes), |
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FM10K_NETDEV_STAT(tx_errors), |
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FM10K_NETDEV_STAT(rx_packets), |
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FM10K_NETDEV_STAT(rx_bytes), |
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FM10K_NETDEV_STAT(rx_errors), |
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FM10K_NETDEV_STAT(rx_dropped), |
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/* detailed Rx errors */ |
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FM10K_NETDEV_STAT(rx_length_errors), |
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FM10K_NETDEV_STAT(rx_crc_errors), |
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FM10K_NETDEV_STAT(rx_fifo_errors), |
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}; |
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#define FM10K_NETDEV_STATS_LEN ARRAY_SIZE(fm10k_gstrings_net_stats) |
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/* General interface statistics */ |
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#define FM10K_STAT(_name, _stat) \ |
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FM10K_STAT_FIELDS(struct fm10k_intfc, _name, _stat) |
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static const struct fm10k_stats fm10k_gstrings_global_stats[] = { |
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FM10K_STAT("tx_restart_queue", restart_queue), |
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FM10K_STAT("tx_busy", tx_busy), |
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FM10K_STAT("tx_csum_errors", tx_csum_errors), |
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FM10K_STAT("rx_alloc_failed", alloc_failed), |
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FM10K_STAT("rx_csum_errors", rx_csum_errors), |
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FM10K_STAT("tx_packets_nic", tx_packets_nic), |
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FM10K_STAT("tx_bytes_nic", tx_bytes_nic), |
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FM10K_STAT("rx_packets_nic", rx_packets_nic), |
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FM10K_STAT("rx_bytes_nic", rx_bytes_nic), |
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FM10K_STAT("rx_drops_nic", rx_drops_nic), |
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FM10K_STAT("rx_overrun_pf", rx_overrun_pf), |
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FM10K_STAT("rx_overrun_vf", rx_overrun_vf), |
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FM10K_STAT("swapi_status", hw.swapi.status), |
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FM10K_STAT("mac_rules_used", hw.swapi.mac.used), |
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FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail), |
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FM10K_STAT("reset_while_pending", hw.mac.reset_while_pending), |
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FM10K_STAT("tx_hang_count", tx_timeout_count), |
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}; |
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static const struct fm10k_stats fm10k_gstrings_pf_stats[] = { |
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FM10K_STAT("timeout", stats.timeout.count), |
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FM10K_STAT("ur", stats.ur.count), |
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FM10K_STAT("ca", stats.ca.count), |
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FM10K_STAT("um", stats.um.count), |
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FM10K_STAT("xec", stats.xec.count), |
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FM10K_STAT("vlan_drop", stats.vlan_drop.count), |
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FM10K_STAT("loopback_drop", stats.loopback_drop.count), |
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FM10K_STAT("nodesc_drop", stats.nodesc_drop.count), |
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}; |
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/* mailbox statistics */ |
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#define FM10K_MBX_STAT(_name, _stat) \ |
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FM10K_STAT_FIELDS(struct fm10k_mbx_info, _name, _stat) |
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static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = { |
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FM10K_MBX_STAT("mbx_tx_busy", tx_busy), |
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FM10K_MBX_STAT("mbx_tx_dropped", tx_dropped), |
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FM10K_MBX_STAT("mbx_tx_messages", tx_messages), |
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FM10K_MBX_STAT("mbx_tx_dwords", tx_dwords), |
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FM10K_MBX_STAT("mbx_tx_mbmem_pulled", tx_mbmem_pulled), |
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FM10K_MBX_STAT("mbx_rx_messages", rx_messages), |
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FM10K_MBX_STAT("mbx_rx_dwords", rx_dwords), |
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FM10K_MBX_STAT("mbx_rx_parse_err", rx_parse_err), |
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FM10K_MBX_STAT("mbx_rx_mbmem_pushed", rx_mbmem_pushed), |
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}; |
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/* per-queue ring statistics */ |
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#define FM10K_QUEUE_STAT(_name, _stat) \ |
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FM10K_STAT_FIELDS(struct fm10k_ring, _name, _stat) |
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static const struct fm10k_stats fm10k_gstrings_queue_stats[] = { |
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FM10K_QUEUE_STAT("%s_queue_%u_packets", stats.packets), |
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FM10K_QUEUE_STAT("%s_queue_%u_bytes", stats.bytes), |
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}; |
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#define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_global_stats) |
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#define FM10K_PF_STATS_LEN ARRAY_SIZE(fm10k_gstrings_pf_stats) |
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#define FM10K_MBX_STATS_LEN ARRAY_SIZE(fm10k_gstrings_mbx_stats) |
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#define FM10K_QUEUE_STATS_LEN ARRAY_SIZE(fm10k_gstrings_queue_stats) |
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#define FM10K_STATIC_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \ |
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FM10K_NETDEV_STATS_LEN + \ |
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FM10K_MBX_STATS_LEN) |
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static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = { |
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"Mailbox test (on/offline)" |
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}; |
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#define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN) |
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enum fm10k_self_test_types { |
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FM10K_TEST_MBX, |
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FM10K_TEST_MAX = FM10K_TEST_LEN |
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}; |
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enum { |
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FM10K_PRV_FLAG_LEN, |
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}; |
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static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = { |
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}; |
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static void __fm10k_add_stat_strings(u8 **p, const struct fm10k_stats stats[], |
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const unsigned int size, ...) |
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{ |
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unsigned int i; |
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for (i = 0; i < size; i++) { |
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va_list args; |
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va_start(args, size); |
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vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); |
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*p += ETH_GSTRING_LEN; |
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va_end(args); |
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} |
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} |
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#define fm10k_add_stat_strings(p, stats, ...) \ |
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__fm10k_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) |
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static void fm10k_get_stat_strings(struct net_device *dev, u8 *data) |
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{ |
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struct fm10k_intfc *interface = netdev_priv(dev); |
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unsigned int i; |
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fm10k_add_stat_strings(&data, fm10k_gstrings_net_stats); |
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fm10k_add_stat_strings(&data, fm10k_gstrings_global_stats); |
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fm10k_add_stat_strings(&data, fm10k_gstrings_mbx_stats); |
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if (interface->hw.mac.type != fm10k_mac_vf) |
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fm10k_add_stat_strings(&data, fm10k_gstrings_pf_stats); |
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for (i = 0; i < interface->hw.mac.max_queues; i++) { |
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fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats, |
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"tx", i); |
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fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats, |
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"rx", i); |
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} |
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} |
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static void fm10k_get_strings(struct net_device *dev, |
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u32 stringset, u8 *data) |
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{ |
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switch (stringset) { |
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case ETH_SS_TEST: |
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memcpy(data, fm10k_gstrings_test, |
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FM10K_TEST_LEN * ETH_GSTRING_LEN); |
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break; |
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case ETH_SS_STATS: |
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fm10k_get_stat_strings(dev, data); |
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break; |
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case ETH_SS_PRIV_FLAGS: |
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memcpy(data, fm10k_prv_flags, |
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FM10K_PRV_FLAG_LEN * ETH_GSTRING_LEN); |
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break; |
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} |
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} |
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static int fm10k_get_sset_count(struct net_device *dev, int sset) |
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{ |
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struct fm10k_intfc *interface = netdev_priv(dev); |
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struct fm10k_hw *hw = &interface->hw; |
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int stats_len = FM10K_STATIC_STATS_LEN; |
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switch (sset) { |
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case ETH_SS_TEST: |
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return FM10K_TEST_LEN; |
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case ETH_SS_STATS: |
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stats_len += hw->mac.max_queues * 2 * FM10K_QUEUE_STATS_LEN; |
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if (hw->mac.type != fm10k_mac_vf) |
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stats_len += FM10K_PF_STATS_LEN; |
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return stats_len; |
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case ETH_SS_PRIV_FLAGS: |
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return FM10K_PRV_FLAG_LEN; |
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default: |
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return -EOPNOTSUPP; |
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} |
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} |
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static void __fm10k_add_ethtool_stats(u64 **data, void *pointer, |
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const struct fm10k_stats stats[], |
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const unsigned int size) |
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{ |
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unsigned int i; |
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if (!pointer) { |
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/* memory is not zero allocated so we have to clear it */ |
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for (i = 0; i < size; i++) |
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*((*data)++) = 0; |
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return; |
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} |
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for (i = 0; i < size; i++) { |
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char *p = (char *)pointer + stats[i].stat_offset; |
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switch (stats[i].sizeof_stat) { |
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case sizeof(u64): |
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*((*data)++) = *(u64 *)p; |
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break; |
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case sizeof(u32): |
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*((*data)++) = *(u32 *)p; |
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break; |
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case sizeof(u16): |
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*((*data)++) = *(u16 *)p; |
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break; |
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case sizeof(u8): |
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*((*data)++) = *(u8 *)p; |
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break; |
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default: |
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WARN_ONCE(1, "unexpected stat size for %s", |
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stats[i].stat_string); |
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*((*data)++) = 0; |
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} |
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} |
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} |
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#define fm10k_add_ethtool_stats(data, pointer, stats) \ |
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__fm10k_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) |
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static void fm10k_get_ethtool_stats(struct net_device *netdev, |
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struct ethtool_stats __always_unused *stats, |
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u64 *data) |
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{ |
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struct fm10k_intfc *interface = netdev_priv(netdev); |
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struct net_device_stats *net_stats = &netdev->stats; |
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int i; |
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fm10k_update_stats(interface); |
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fm10k_add_ethtool_stats(&data, net_stats, fm10k_gstrings_net_stats); |
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fm10k_add_ethtool_stats(&data, interface, fm10k_gstrings_global_stats); |
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fm10k_add_ethtool_stats(&data, &interface->hw.mbx, |
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fm10k_gstrings_mbx_stats); |
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if (interface->hw.mac.type != fm10k_mac_vf) { |
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fm10k_add_ethtool_stats(&data, interface, |
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fm10k_gstrings_pf_stats); |
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} |
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for (i = 0; i < interface->hw.mac.max_queues; i++) { |
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struct fm10k_ring *ring; |
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ring = interface->tx_ring[i]; |
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fm10k_add_ethtool_stats(&data, ring, |
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fm10k_gstrings_queue_stats); |
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ring = interface->rx_ring[i]; |
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fm10k_add_ethtool_stats(&data, ring, |
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fm10k_gstrings_queue_stats); |
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} |
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} |
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/* If function below adds more registers this define needs to be updated */ |
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#define FM10K_REGS_LEN_Q 29 |
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static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i) |
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{ |
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int idx = 0; |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i)); |
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buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i)); |
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BUG_ON(idx != FM10K_REGS_LEN_Q); |
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} |
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/* If function above adds more registers this define needs to be updated */ |
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#define FM10K_REGS_LEN_VSI 43 |
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static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i) |
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{ |
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int idx = 0, j; |
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buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i)); |
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for (j = 0; j < 10; j++) |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j)); |
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for (j = 0; j < 32; j++) |
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buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j)); |
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BUG_ON(idx != FM10K_REGS_LEN_VSI); |
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} |
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static void fm10k_get_regs(struct net_device *netdev, |
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struct ethtool_regs *regs, void *p) |
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{ |
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struct fm10k_intfc *interface = netdev_priv(netdev); |
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struct fm10k_hw *hw = &interface->hw; |
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u32 *buff = p; |
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u16 i; |
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regs->version = BIT(24) | (hw->revision_id << 16) | hw->device_id; |
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switch (hw->mac.type) { |
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case fm10k_mac_pf: |
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/* General PF Registers */ |
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*(buff++) = fm10k_read_reg(hw, FM10K_CTRL); |
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*(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT); |
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*(buff++) = fm10k_read_reg(hw, FM10K_GCR); |
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*(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT); |
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for (i = 0; i < 8; i++) { |
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*(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i)); |
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*(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i)); |
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} |
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for (i = 0; i < 65; i++) { |
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fm10k_get_reg_vsi(hw, buff, i); |
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buff += FM10K_REGS_LEN_VSI; |
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} |
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*(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL); |
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*(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2); |
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for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) { |
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fm10k_get_reg_q(hw, buff, i); |
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buff += FM10K_REGS_LEN_Q; |
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} |
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*(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL); |
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for (i = 0; i < 8; i++) |
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*(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i)); |
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/* Interrupt Throttling Registers */ |
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for (i = 0; i < 130; i++) |
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*(buff++) = fm10k_read_reg(hw, FM10K_ITR(i)); |
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break; |
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case fm10k_mac_vf: |
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/* General VF registers */ |
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*(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL); |
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*(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP); |
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*(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME); |
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/* Interrupt Throttling Registers */ |
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for (i = 0; i < 8; i++) |
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*(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i)); |
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fm10k_get_reg_vsi(hw, buff, 0); |
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buff += FM10K_REGS_LEN_VSI; |
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for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) { |
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if (i < hw->mac.max_queues) |
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fm10k_get_reg_q(hw, buff, i); |
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else |
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memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q); |
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buff += FM10K_REGS_LEN_Q; |
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} |
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break; |
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default: |
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return; |
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} |
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} |
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/* If function above adds more registers these define need to be updated */ |
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#define FM10K_REGS_LEN_PF \ |
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(162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q)) |
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#define FM10K_REGS_LEN_VF \ |
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(11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q)) |
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static int fm10k_get_regs_len(struct net_device *netdev) |
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{ |
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struct fm10k_intfc *interface = netdev_priv(netdev); |
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struct fm10k_hw *hw = &interface->hw; |
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switch (hw->mac.type) { |
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case fm10k_mac_pf: |
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return FM10K_REGS_LEN_PF * sizeof(u32); |
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case fm10k_mac_vf: |
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return FM10K_REGS_LEN_VF * sizeof(u32); |
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default: |
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return 0; |
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} |
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} |
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static void fm10k_get_drvinfo(struct net_device *dev, |
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struct ethtool_drvinfo *info) |
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{ |
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struct fm10k_intfc *interface = netdev_priv(dev); |
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strncpy(info->driver, fm10k_driver_name, |
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sizeof(info->driver) - 1); |
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strncpy(info->bus_info, pci_name(interface->pdev), |
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sizeof(info->bus_info) - 1); |
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} |
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static void fm10k_get_pauseparam(struct net_device *dev, |
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struct ethtool_pauseparam *pause) |
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{ |
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struct fm10k_intfc *interface = netdev_priv(dev); |
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|
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/* record fixed values for autoneg and tx pause */ |
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pause->autoneg = 0; |
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pause->tx_pause = 1; |
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|
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pause->rx_pause = interface->rx_pause ? 1 : 0; |
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} |
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static int fm10k_set_pauseparam(struct net_device *dev, |
|
struct ethtool_pauseparam *pause) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
struct fm10k_hw *hw = &interface->hw; |
|
|
|
if (pause->autoneg || !pause->tx_pause) |
|
return -EINVAL; |
|
|
|
/* we can only support pause on the PF to avoid head-of-line blocking */ |
|
if (hw->mac.type == fm10k_mac_pf) |
|
interface->rx_pause = pause->rx_pause ? ~0 : 0; |
|
else if (pause->rx_pause) |
|
return -EINVAL; |
|
|
|
if (netif_running(dev)) |
|
fm10k_update_rx_drop_en(interface); |
|
|
|
return 0; |
|
} |
|
|
|
static u32 fm10k_get_msglevel(struct net_device *netdev) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
|
|
return interface->msg_enable; |
|
} |
|
|
|
static void fm10k_set_msglevel(struct net_device *netdev, u32 data) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
|
|
interface->msg_enable = data; |
|
} |
|
|
|
static void fm10k_get_ringparam(struct net_device *netdev, |
|
struct ethtool_ringparam *ring) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
|
|
ring->rx_max_pending = FM10K_MAX_RXD; |
|
ring->tx_max_pending = FM10K_MAX_TXD; |
|
ring->rx_mini_max_pending = 0; |
|
ring->rx_jumbo_max_pending = 0; |
|
ring->rx_pending = interface->rx_ring_count; |
|
ring->tx_pending = interface->tx_ring_count; |
|
ring->rx_mini_pending = 0; |
|
ring->rx_jumbo_pending = 0; |
|
} |
|
|
|
static int fm10k_set_ringparam(struct net_device *netdev, |
|
struct ethtool_ringparam *ring) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
struct fm10k_ring *temp_ring; |
|
int i, err = 0; |
|
u32 new_rx_count, new_tx_count; |
|
|
|
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) |
|
return -EINVAL; |
|
|
|
new_tx_count = clamp_t(u32, ring->tx_pending, |
|
FM10K_MIN_TXD, FM10K_MAX_TXD); |
|
new_tx_count = ALIGN(new_tx_count, FM10K_REQ_TX_DESCRIPTOR_MULTIPLE); |
|
|
|
new_rx_count = clamp_t(u32, ring->rx_pending, |
|
FM10K_MIN_RXD, FM10K_MAX_RXD); |
|
new_rx_count = ALIGN(new_rx_count, FM10K_REQ_RX_DESCRIPTOR_MULTIPLE); |
|
|
|
if ((new_tx_count == interface->tx_ring_count) && |
|
(new_rx_count == interface->rx_ring_count)) { |
|
/* nothing to do */ |
|
return 0; |
|
} |
|
|
|
while (test_and_set_bit(__FM10K_RESETTING, interface->state)) |
|
usleep_range(1000, 2000); |
|
|
|
if (!netif_running(interface->netdev)) { |
|
for (i = 0; i < interface->num_tx_queues; i++) |
|
interface->tx_ring[i]->count = new_tx_count; |
|
for (i = 0; i < interface->num_rx_queues; i++) |
|
interface->rx_ring[i]->count = new_rx_count; |
|
interface->tx_ring_count = new_tx_count; |
|
interface->rx_ring_count = new_rx_count; |
|
goto clear_reset; |
|
} |
|
|
|
/* allocate temporary buffer to store rings in */ |
|
i = max_t(int, interface->num_tx_queues, interface->num_rx_queues); |
|
temp_ring = vmalloc(array_size(i, sizeof(struct fm10k_ring))); |
|
|
|
if (!temp_ring) { |
|
err = -ENOMEM; |
|
goto clear_reset; |
|
} |
|
|
|
fm10k_down(interface); |
|
|
|
/* Setup new Tx resources and free the old Tx resources in that order. |
|
* We can then assign the new resources to the rings via a memcpy. |
|
* The advantage to this approach is that we are guaranteed to still |
|
* have resources even in the case of an allocation failure. |
|
*/ |
|
if (new_tx_count != interface->tx_ring_count) { |
|
for (i = 0; i < interface->num_tx_queues; i++) { |
|
memcpy(&temp_ring[i], interface->tx_ring[i], |
|
sizeof(struct fm10k_ring)); |
|
|
|
temp_ring[i].count = new_tx_count; |
|
err = fm10k_setup_tx_resources(&temp_ring[i]); |
|
if (err) { |
|
while (i) { |
|
i--; |
|
fm10k_free_tx_resources(&temp_ring[i]); |
|
} |
|
goto err_setup; |
|
} |
|
} |
|
|
|
for (i = 0; i < interface->num_tx_queues; i++) { |
|
fm10k_free_tx_resources(interface->tx_ring[i]); |
|
|
|
memcpy(interface->tx_ring[i], &temp_ring[i], |
|
sizeof(struct fm10k_ring)); |
|
} |
|
|
|
interface->tx_ring_count = new_tx_count; |
|
} |
|
|
|
/* Repeat the process for the Rx rings if needed */ |
|
if (new_rx_count != interface->rx_ring_count) { |
|
for (i = 0; i < interface->num_rx_queues; i++) { |
|
memcpy(&temp_ring[i], interface->rx_ring[i], |
|
sizeof(struct fm10k_ring)); |
|
|
|
temp_ring[i].count = new_rx_count; |
|
err = fm10k_setup_rx_resources(&temp_ring[i]); |
|
if (err) { |
|
while (i) { |
|
i--; |
|
fm10k_free_rx_resources(&temp_ring[i]); |
|
} |
|
goto err_setup; |
|
} |
|
} |
|
|
|
for (i = 0; i < interface->num_rx_queues; i++) { |
|
fm10k_free_rx_resources(interface->rx_ring[i]); |
|
|
|
memcpy(interface->rx_ring[i], &temp_ring[i], |
|
sizeof(struct fm10k_ring)); |
|
} |
|
|
|
interface->rx_ring_count = new_rx_count; |
|
} |
|
|
|
err_setup: |
|
fm10k_up(interface); |
|
vfree(temp_ring); |
|
clear_reset: |
|
clear_bit(__FM10K_RESETTING, interface->state); |
|
return err; |
|
} |
|
|
|
static int fm10k_get_coalesce(struct net_device *dev, |
|
struct ethtool_coalesce *ec) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
|
|
ec->use_adaptive_tx_coalesce = ITR_IS_ADAPTIVE(interface->tx_itr); |
|
ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE; |
|
|
|
ec->use_adaptive_rx_coalesce = ITR_IS_ADAPTIVE(interface->rx_itr); |
|
ec->rx_coalesce_usecs = interface->rx_itr & ~FM10K_ITR_ADAPTIVE; |
|
|
|
return 0; |
|
} |
|
|
|
static int fm10k_set_coalesce(struct net_device *dev, |
|
struct ethtool_coalesce *ec) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
u16 tx_itr, rx_itr; |
|
int i; |
|
|
|
/* verify limits */ |
|
if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) || |
|
(ec->tx_coalesce_usecs > FM10K_ITR_MAX)) |
|
return -EINVAL; |
|
|
|
/* record settings */ |
|
tx_itr = ec->tx_coalesce_usecs; |
|
rx_itr = ec->rx_coalesce_usecs; |
|
|
|
/* set initial values for adaptive ITR */ |
|
if (ec->use_adaptive_tx_coalesce) |
|
tx_itr = FM10K_ITR_ADAPTIVE | FM10K_TX_ITR_DEFAULT; |
|
|
|
if (ec->use_adaptive_rx_coalesce) |
|
rx_itr = FM10K_ITR_ADAPTIVE | FM10K_RX_ITR_DEFAULT; |
|
|
|
/* update interface */ |
|
interface->tx_itr = tx_itr; |
|
interface->rx_itr = rx_itr; |
|
|
|
/* update q_vectors */ |
|
for (i = 0; i < interface->num_q_vectors; i++) { |
|
struct fm10k_q_vector *qv = interface->q_vector[i]; |
|
|
|
qv->tx.itr = tx_itr; |
|
qv->rx.itr = rx_itr; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface, |
|
struct ethtool_rxnfc *cmd) |
|
{ |
|
cmd->data = 0; |
|
|
|
/* Report default options for RSS on fm10k */ |
|
switch (cmd->flow_type) { |
|
case TCP_V4_FLOW: |
|
case TCP_V6_FLOW: |
|
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
|
fallthrough; |
|
case UDP_V4_FLOW: |
|
if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP, |
|
interface->flags)) |
|
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
|
fallthrough; |
|
case SCTP_V4_FLOW: |
|
case SCTP_V6_FLOW: |
|
case AH_ESP_V4_FLOW: |
|
case AH_ESP_V6_FLOW: |
|
case AH_V4_FLOW: |
|
case AH_V6_FLOW: |
|
case ESP_V4_FLOW: |
|
case ESP_V6_FLOW: |
|
case IPV4_FLOW: |
|
case IPV6_FLOW: |
|
cmd->data |= RXH_IP_SRC | RXH_IP_DST; |
|
break; |
|
case UDP_V6_FLOW: |
|
if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP, |
|
interface->flags)) |
|
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
|
cmd->data |= RXH_IP_SRC | RXH_IP_DST; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, |
|
u32 __always_unused *rule_locs) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
int ret = -EOPNOTSUPP; |
|
|
|
switch (cmd->cmd) { |
|
case ETHTOOL_GRXRINGS: |
|
cmd->data = interface->num_rx_queues; |
|
ret = 0; |
|
break; |
|
case ETHTOOL_GRXFH: |
|
ret = fm10k_get_rss_hash_opts(interface, cmd); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface, |
|
struct ethtool_rxnfc *nfc) |
|
{ |
|
int rss_ipv4_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP, |
|
interface->flags); |
|
int rss_ipv6_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP, |
|
interface->flags); |
|
|
|
/* RSS does not support anything other than hashing |
|
* to queues on src and dst IPs and ports |
|
*/ |
|
if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | |
|
RXH_L4_B_0_1 | RXH_L4_B_2_3)) |
|
return -EINVAL; |
|
|
|
switch (nfc->flow_type) { |
|
case TCP_V4_FLOW: |
|
case TCP_V6_FLOW: |
|
if (!(nfc->data & RXH_IP_SRC) || |
|
!(nfc->data & RXH_IP_DST) || |
|
!(nfc->data & RXH_L4_B_0_1) || |
|
!(nfc->data & RXH_L4_B_2_3)) |
|
return -EINVAL; |
|
break; |
|
case UDP_V4_FLOW: |
|
if (!(nfc->data & RXH_IP_SRC) || |
|
!(nfc->data & RXH_IP_DST)) |
|
return -EINVAL; |
|
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
|
case 0: |
|
clear_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP, |
|
interface->flags); |
|
break; |
|
case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
|
set_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP, |
|
interface->flags); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
break; |
|
case UDP_V6_FLOW: |
|
if (!(nfc->data & RXH_IP_SRC) || |
|
!(nfc->data & RXH_IP_DST)) |
|
return -EINVAL; |
|
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
|
case 0: |
|
clear_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP, |
|
interface->flags); |
|
break; |
|
case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
|
set_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP, |
|
interface->flags); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
break; |
|
case AH_ESP_V4_FLOW: |
|
case AH_V4_FLOW: |
|
case ESP_V4_FLOW: |
|
case SCTP_V4_FLOW: |
|
case AH_ESP_V6_FLOW: |
|
case AH_V6_FLOW: |
|
case ESP_V6_FLOW: |
|
case SCTP_V6_FLOW: |
|
if (!(nfc->data & RXH_IP_SRC) || |
|
!(nfc->data & RXH_IP_DST) || |
|
(nfc->data & RXH_L4_B_0_1) || |
|
(nfc->data & RXH_L4_B_2_3)) |
|
return -EINVAL; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
/* If something changed we need to update the MRQC register. Note that |
|
* test_bit() is guaranteed to return strictly 0 or 1, so testing for |
|
* equality is safe. |
|
*/ |
|
if ((rss_ipv4_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP, |
|
interface->flags)) || |
|
(rss_ipv6_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP, |
|
interface->flags))) { |
|
struct fm10k_hw *hw = &interface->hw; |
|
bool warn = false; |
|
u32 mrqc; |
|
|
|
/* Perform hash on these packet types */ |
|
mrqc = FM10K_MRQC_IPV4 | |
|
FM10K_MRQC_TCP_IPV4 | |
|
FM10K_MRQC_IPV6 | |
|
FM10K_MRQC_TCP_IPV6; |
|
|
|
if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP, |
|
interface->flags)) { |
|
mrqc |= FM10K_MRQC_UDP_IPV4; |
|
warn = true; |
|
} |
|
if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP, |
|
interface->flags)) { |
|
mrqc |= FM10K_MRQC_UDP_IPV6; |
|
warn = true; |
|
} |
|
|
|
/* If we enable UDP RSS display a warning that this may cause |
|
* fragmented UDP packets to arrive out of order. |
|
*/ |
|
if (warn) |
|
netif_warn(interface, drv, interface->netdev, |
|
"enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); |
|
|
|
fm10k_write_reg(hw, FM10K_MRQC(0), mrqc); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
int ret = -EOPNOTSUPP; |
|
|
|
switch (cmd->cmd) { |
|
case ETHTOOL_SRXFH: |
|
ret = fm10k_set_rss_hash_opt(interface, cmd); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data) |
|
{ |
|
struct fm10k_hw *hw = &interface->hw; |
|
struct fm10k_mbx_info *mbx = &hw->mbx; |
|
u32 attr_flag, test_msg[6]; |
|
unsigned long timeout; |
|
int err = -EINVAL; |
|
|
|
/* For now this is a VF only feature */ |
|
if (hw->mac.type != fm10k_mac_vf) |
|
return 0; |
|
|
|
/* loop through both nested and unnested attribute types */ |
|
for (attr_flag = BIT(FM10K_TEST_MSG_UNSET); |
|
attr_flag < BIT(2 * FM10K_TEST_MSG_NESTED); |
|
attr_flag += attr_flag) { |
|
/* generate message to be tested */ |
|
fm10k_tlv_msg_test_create(test_msg, attr_flag); |
|
|
|
fm10k_mbx_lock(interface); |
|
mbx->test_result = FM10K_NOT_IMPLEMENTED; |
|
err = mbx->ops.enqueue_tx(hw, mbx, test_msg); |
|
fm10k_mbx_unlock(interface); |
|
|
|
/* wait up to 1 second for response */ |
|
timeout = jiffies + HZ; |
|
do { |
|
if (err < 0) |
|
goto err_out; |
|
|
|
usleep_range(500, 1000); |
|
|
|
fm10k_mbx_lock(interface); |
|
mbx->ops.process(hw, mbx); |
|
fm10k_mbx_unlock(interface); |
|
|
|
err = mbx->test_result; |
|
if (!err) |
|
break; |
|
} while (time_is_after_jiffies(timeout)); |
|
|
|
/* reporting errors */ |
|
if (err) |
|
goto err_out; |
|
} |
|
|
|
err_out: |
|
*data = err < 0 ? (attr_flag) : (err > 0); |
|
return err; |
|
} |
|
|
|
static void fm10k_self_test(struct net_device *dev, |
|
struct ethtool_test *eth_test, u64 *data) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
struct fm10k_hw *hw = &interface->hw; |
|
|
|
memset(data, 0, sizeof(*data) * FM10K_TEST_LEN); |
|
|
|
if (FM10K_REMOVED(hw->hw_addr)) { |
|
netif_err(interface, drv, dev, |
|
"Interface removed - test blocked\n"); |
|
eth_test->flags |= ETH_TEST_FL_FAILED; |
|
return; |
|
} |
|
|
|
if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX])) |
|
eth_test->flags |= ETH_TEST_FL_FAILED; |
|
} |
|
|
|
static u32 fm10k_get_priv_flags(struct net_device *netdev) |
|
{ |
|
return 0; |
|
} |
|
|
|
static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags) |
|
{ |
|
if (priv_flags >= BIT(FM10K_PRV_FLAG_LEN)) |
|
return -EINVAL; |
|
|
|
return 0; |
|
} |
|
|
|
static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev) |
|
{ |
|
return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG; |
|
} |
|
|
|
void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir) |
|
{ |
|
u16 rss_i = interface->ring_feature[RING_F_RSS].indices; |
|
struct fm10k_hw *hw = &interface->hw; |
|
u32 table[4]; |
|
int i, j; |
|
|
|
/* record entries to reta table */ |
|
for (i = 0; i < FM10K_RETA_SIZE; i++) { |
|
u32 reta, n; |
|
|
|
/* generate a new table if we weren't given one */ |
|
for (j = 0; j < 4; j++) { |
|
if (indir) |
|
n = indir[4 * i + j]; |
|
else |
|
n = ethtool_rxfh_indir_default(4 * i + j, |
|
rss_i); |
|
|
|
table[j] = n; |
|
} |
|
|
|
reta = table[0] | |
|
(table[1] << 8) | |
|
(table[2] << 16) | |
|
(table[3] << 24); |
|
|
|
if (interface->reta[i] == reta) |
|
continue; |
|
|
|
interface->reta[i] = reta; |
|
fm10k_write_reg(hw, FM10K_RETA(0, i), reta); |
|
} |
|
} |
|
|
|
static int fm10k_get_reta(struct net_device *netdev, u32 *indir) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
int i; |
|
|
|
if (!indir) |
|
return 0; |
|
|
|
for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) { |
|
u32 reta = interface->reta[i]; |
|
|
|
indir[0] = (reta << 24) >> 24; |
|
indir[1] = (reta << 16) >> 24; |
|
indir[2] = (reta << 8) >> 24; |
|
indir[3] = (reta) >> 24; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int fm10k_set_reta(struct net_device *netdev, const u32 *indir) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
int i; |
|
u16 rss_i; |
|
|
|
if (!indir) |
|
return 0; |
|
|
|
/* Verify user input. */ |
|
rss_i = interface->ring_feature[RING_F_RSS].indices; |
|
for (i = fm10k_get_reta_size(netdev); i--;) { |
|
if (indir[i] < rss_i) |
|
continue; |
|
return -EINVAL; |
|
} |
|
|
|
fm10k_write_reta(interface, indir); |
|
|
|
return 0; |
|
} |
|
|
|
static u32 fm10k_get_rssrk_size(struct net_device __always_unused *netdev) |
|
{ |
|
return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG; |
|
} |
|
|
|
static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key, |
|
u8 *hfunc) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
int i, err; |
|
|
|
if (hfunc) |
|
*hfunc = ETH_RSS_HASH_TOP; |
|
|
|
err = fm10k_get_reta(netdev, indir); |
|
if (err || !key) |
|
return err; |
|
|
|
for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) |
|
*(__le32 *)key = cpu_to_le32(interface->rssrk[i]); |
|
|
|
return 0; |
|
} |
|
|
|
static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir, |
|
const u8 *key, const u8 hfunc) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(netdev); |
|
struct fm10k_hw *hw = &interface->hw; |
|
int i, err; |
|
|
|
/* We do not allow change in unsupported parameters */ |
|
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) |
|
return -EOPNOTSUPP; |
|
|
|
err = fm10k_set_reta(netdev, indir); |
|
if (err || !key) |
|
return err; |
|
|
|
for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) { |
|
u32 rssrk = le32_to_cpu(*(__le32 *)key); |
|
|
|
if (interface->rssrk[i] == rssrk) |
|
continue; |
|
|
|
interface->rssrk[i] = rssrk; |
|
fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static unsigned int fm10k_max_channels(struct net_device *dev) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
unsigned int max_combined = interface->hw.mac.max_queues; |
|
u8 tcs = netdev_get_num_tc(dev); |
|
|
|
/* For QoS report channels per traffic class */ |
|
if (tcs > 1) |
|
max_combined = BIT((fls(max_combined / tcs) - 1)); |
|
|
|
return max_combined; |
|
} |
|
|
|
static void fm10k_get_channels(struct net_device *dev, |
|
struct ethtool_channels *ch) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
|
|
/* report maximum channels */ |
|
ch->max_combined = fm10k_max_channels(dev); |
|
|
|
/* report info for other vector */ |
|
ch->max_other = NON_Q_VECTORS; |
|
ch->other_count = ch->max_other; |
|
|
|
/* record RSS queues */ |
|
ch->combined_count = interface->ring_feature[RING_F_RSS].indices; |
|
} |
|
|
|
static int fm10k_set_channels(struct net_device *dev, |
|
struct ethtool_channels *ch) |
|
{ |
|
struct fm10k_intfc *interface = netdev_priv(dev); |
|
unsigned int count = ch->combined_count; |
|
|
|
/* verify they are not requesting separate vectors */ |
|
if (!count || ch->rx_count || ch->tx_count) |
|
return -EINVAL; |
|
|
|
/* verify other_count has not changed */ |
|
if (ch->other_count != NON_Q_VECTORS) |
|
return -EINVAL; |
|
|
|
/* verify the number of channels does not exceed hardware limits */ |
|
if (count > fm10k_max_channels(dev)) |
|
return -EINVAL; |
|
|
|
interface->ring_feature[RING_F_RSS].limit = count; |
|
|
|
/* use setup TC to update any traffic class queue mapping */ |
|
return fm10k_setup_tc(dev, netdev_get_num_tc(dev)); |
|
} |
|
|
|
static const struct ethtool_ops fm10k_ethtool_ops = { |
|
.supported_coalesce_params = ETHTOOL_COALESCE_USECS | |
|
ETHTOOL_COALESCE_USE_ADAPTIVE, |
|
.get_strings = fm10k_get_strings, |
|
.get_sset_count = fm10k_get_sset_count, |
|
.get_ethtool_stats = fm10k_get_ethtool_stats, |
|
.get_drvinfo = fm10k_get_drvinfo, |
|
.get_link = ethtool_op_get_link, |
|
.get_pauseparam = fm10k_get_pauseparam, |
|
.set_pauseparam = fm10k_set_pauseparam, |
|
.get_msglevel = fm10k_get_msglevel, |
|
.set_msglevel = fm10k_set_msglevel, |
|
.get_ringparam = fm10k_get_ringparam, |
|
.set_ringparam = fm10k_set_ringparam, |
|
.get_coalesce = fm10k_get_coalesce, |
|
.set_coalesce = fm10k_set_coalesce, |
|
.get_rxnfc = fm10k_get_rxnfc, |
|
.set_rxnfc = fm10k_set_rxnfc, |
|
.get_regs = fm10k_get_regs, |
|
.get_regs_len = fm10k_get_regs_len, |
|
.self_test = fm10k_self_test, |
|
.get_priv_flags = fm10k_get_priv_flags, |
|
.set_priv_flags = fm10k_set_priv_flags, |
|
.get_rxfh_indir_size = fm10k_get_reta_size, |
|
.get_rxfh_key_size = fm10k_get_rssrk_size, |
|
.get_rxfh = fm10k_get_rssh, |
|
.set_rxfh = fm10k_set_rssh, |
|
.get_channels = fm10k_get_channels, |
|
.set_channels = fm10k_set_channels, |
|
.get_ts_info = ethtool_op_get_ts_info, |
|
}; |
|
|
|
void fm10k_set_ethtool_ops(struct net_device *dev) |
|
{ |
|
dev->ethtool_ops = &fm10k_ethtool_ops; |
|
}
|
|
|