// SPDX-License-Identifier: GPL-2.0-only /**************************************************************************** * Driver for Solarflare network controllers and boards * Copyright 2005-2006 Fen Systems Ltd. * Copyright 2006-2013 Solarflare Communications Inc. */ #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 ef4_sw_stat_desc { … }; /* Initialiser for a struct ef4_sw_stat_desc with type-checking */ #define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ get_stat_function) … static u64 ef4_get_uint_stat(void *field) { … } static u64 ef4_get_atomic_stat(void *field) { … } #define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) … #define EF4_ETHTOOL_UINT_CHANNEL_STAT(field) … #define EF4_ETHTOOL_UINT_TXQ_STAT(field) … static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = …; #define EF4_ETHTOOL_SW_STAT_COUNT … #define EF4_ETHTOOL_EEPROM_MAGIC … /************************************************************************** * * Ethtool operations * ************************************************************************** */ /* Identify device by flashing LEDs */ static int ef4_ethtool_phys_id(struct net_device *net_dev, enum ethtool_phys_id_state state) { … } /* This must be called with rtnl_lock held. */ static int ef4_ethtool_get_link_ksettings(struct net_device *net_dev, struct ethtool_link_ksettings *cmd) { … } /* This must be called with rtnl_lock held. */ static int ef4_ethtool_set_link_ksettings(struct net_device *net_dev, const struct ethtool_link_ksettings *cmd) { … } static void ef4_ethtool_get_drvinfo(struct net_device *net_dev, struct ethtool_drvinfo *info) { … } static int ef4_ethtool_get_regs_len(struct net_device *net_dev) { … } static void ef4_ethtool_get_regs(struct net_device *net_dev, struct ethtool_regs *regs, void *buf) { … } static u32 ef4_ethtool_get_msglevel(struct net_device *net_dev) { … } static void ef4_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable) { … } /** * ef4_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 ef4_fill_test(unsigned int test_index, u8 *strings, u64 *data, int *test, const char *unit_format, int unit_id, const char *test_format, const char *test_id) { … } #define EF4_CHANNEL_NAME(_channel) … #define EF4_TX_QUEUE_NAME(_tx_queue) … #define EF4_RX_QUEUE_NAME(_rx_queue) … #define EF4_LOOPBACK_NAME(_mode, _counter) … /** * ef4_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 * * Fill in a block of loopback self-test entries. Return new test * index. */ static int ef4_fill_loopback_test(struct ef4_nic *efx, struct ef4_loopback_self_tests *lb_tests, enum ef4_loopback_mode mode, unsigned int test_index, u8 *strings, u64 *data) { … } /** * ef4_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 * * Get self-test number of strings, strings, and/or test results. * Return number of strings (== number of test results). * * The reason for merging these three functions is to make sure that * they can never be inconsistent. */ static int ef4_ethtool_fill_self_tests(struct ef4_nic *efx, struct ef4_self_tests *tests, u8 *strings, u64 *data) { … } static size_t ef4_describe_per_queue_stats(struct ef4_nic *efx, u8 *strings) { … } static int ef4_ethtool_get_sset_count(struct net_device *net_dev, int string_set) { … } static void ef4_ethtool_get_strings(struct net_device *net_dev, u32 string_set, u8 *strings) { … } static void ef4_ethtool_get_stats(struct net_device *net_dev, struct ethtool_stats *stats, u64 *data) { … } static void ef4_ethtool_self_test(struct net_device *net_dev, struct ethtool_test *test, u64 *data) { … } /* Restart autonegotiation */ static int ef4_ethtool_nway_reset(struct net_device *net_dev) { … } /* * Each channel has a single IRQ and moderation timer, started by any * completion (or other event). Unless the module parameter * separate_tx_channels is set, IRQs and moderation are therefore * shared between RX and TX completions. In this case, when RX IRQ * moderation is explicitly changed then TX IRQ moderation is * automatically changed too, but otherwise we fail if the two values * are requested to be different. * * The hardware does not support a limit on the number of completions * before an IRQ, so we do not use the max_frames fields. We should * report and require that max_frames == (usecs != 0), but this would * invalidate existing user documentation. * * The hardware does not have distinct settings for interrupt * moderation while the previous IRQ is being handled, so we should * not use the 'irq' fields. However, an earlier developer * misunderstood the meaning of the 'irq' fields and the driver did * not support the standard fields. To avoid invalidating existing * user documentation, we report and accept changes through either the * standard or 'irq' fields. If both are changed at the same time, we * prefer the standard field. * * We implement adaptive IRQ moderation, but use a different algorithm * from that assumed in the definition of struct ethtool_coalesce. * Therefore we do not use any of the adaptive moderation parameters * in it. */ static int ef4_ethtool_get_coalesce(struct net_device *net_dev, struct ethtool_coalesce *coalesce, struct kernel_ethtool_coalesce *kernel_coal, struct netlink_ext_ack *extack) { … } static int ef4_ethtool_set_coalesce(struct net_device *net_dev, struct ethtool_coalesce *coalesce, struct kernel_ethtool_coalesce *kernel_coal, struct netlink_ext_ack *extack) { … } static void ef4_ethtool_get_ringparam(struct net_device *net_dev, struct ethtool_ringparam *ring, struct kernel_ethtool_ringparam *kernel_ring, struct netlink_ext_ack *extack) { … } static int ef4_ethtool_set_ringparam(struct net_device *net_dev, struct ethtool_ringparam *ring, struct kernel_ethtool_ringparam *kernel_ring, struct netlink_ext_ack *extack) { … } static int ef4_ethtool_set_pauseparam(struct net_device *net_dev, struct ethtool_pauseparam *pause) { … } static void ef4_ethtool_get_pauseparam(struct net_device *net_dev, struct ethtool_pauseparam *pause) { … } static void ef4_ethtool_get_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) { … } static int ef4_ethtool_set_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) { … } static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags) { … } /* MAC address mask including only I/G bit */ static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = …; #define IP4_ADDR_FULL_MASK … #define IP_PROTO_FULL_MASK … #define PORT_FULL_MASK … #define ETHER_TYPE_FULL_MASK … static inline void ip6_fill_mask(__be32 *mask) { … } static int ef4_ethtool_get_class_rule(struct ef4_nic *efx, struct ethtool_rx_flow_spec *rule) { … } static int ef4_ethtool_get_rxnfc(struct net_device *net_dev, struct ethtool_rxnfc *info, u32 *rule_locs) { … } static inline bool ip6_mask_is_full(__be32 mask[4]) { … } static inline bool ip6_mask_is_empty(__be32 mask[4]) { … } static int ef4_ethtool_set_class_rule(struct ef4_nic *efx, struct ethtool_rx_flow_spec *rule) { … } static int ef4_ethtool_set_rxnfc(struct net_device *net_dev, struct ethtool_rxnfc *info) { … } static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev) { … } static int ef4_ethtool_get_rxfh(struct net_device *net_dev, struct ethtool_rxfh_param *rxfh) { … } static int ef4_ethtool_set_rxfh(struct net_device *net_dev, struct ethtool_rxfh_param *rxfh, struct netlink_ext_ack *extack) { … } static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev, struct ethtool_eeprom *ee, u8 *data) { … } static int ef4_ethtool_get_module_info(struct net_device *net_dev, struct ethtool_modinfo *modinfo) { … } const struct ethtool_ops ef4_ethtool_ops = …;
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