| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Linux/drivers/net/ethernet/intel/i40e/ (Linux Kernel Version 6.17.9©) Datei vom 24.10.2025 mit Größe 179 kB |
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Impressum i40e_ethtool.c Sprache: C |
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// SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 2013 - 2018 Intel Corporation. */ /* ethtool support for i40e */ #include <linux/net/intel/libie/pctype.h> #include "i40e_devids.h" #include "i40e_diag.h" #include "i40e_txrx_common.h" #include "i40e_virtchnl_pf.h" /* ethtool statistics helpers */ /** * struct i40e_stats - definition for an ethtool statistic * @stat_string: statistic name to display in ethtool -S output * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) * @stat_offset: offsetof() the stat from a base pointer * * This structure defines a statistic to be added to the ethtool stats buffer. * It defines a statistic as offset from a common base pointer. Stats should * be defined in constant arrays using the I40E_STAT macro, with every element * of the array using the same _type for calculating the sizeof_stat and * stat_offset. * * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from * the i40e_add_ethtool_stat() helper function. * * The @stat_string is interpreted as a format string, allowing formatted * values to be inserted while looping over multiple structures for a given * statistics array. Thus, every statistic string in an array should have the * same type and number of format specifiers, to be formatted by variadic * arguments to the i40e_add_stat_string() helper function. **/ struct i40e_stats { char stat_string[ETH_GSTRING_LEN]; int sizeof_stat; int stat_offset; }; /* Helper macro to define an i40e_stat structure with proper size and type. * Use this when defining constant statistics arrays. Note that @_type expects * only a type name and is used multiple times. */ #define I40E_STAT(_type, _name, _stat) { \ .stat_string = _name, \ .sizeof_stat = sizeof_field(_type, _stat), \ .stat_offset = offsetof(_type, _stat) \ } /* Helper macro for defining some statistics directly copied from the netdev * stats structure. */ #define I40E_NETDEV_STAT(_net_stat) \ I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) /* Helper macro for defining some statistics related to queues */ #define I40E_QUEUE_STAT(_name, _stat) \ I40E_STAT(struct i40e_ring, _name, _stat) /* Stats associated with a Tx or Rx ring */ static const struct i40e_stats i40e_gstrings_queue_stats[] = { I40E_QUEUE_STAT("%s-%u.packets", stats.packets), I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), }; /** * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer * @data: location to store the stat value * @pointer: basis for where to copy from * @stat: the stat definition * * Copies the stat data defined by the pointer and stat structure pair into * the memory supplied as data. Used to implement i40e_add_ethtool_stats and * i40e_add_queue_stats. If the pointer is null, data will be zero'd. */ static void i40e_add_one_ethtool_stat(u64 *data, void *pointer, const struct i40e_stats *stat) { char *p; if (!pointer) { /* ensure that the ethtool data buffer is zero'd for any stats * which don't have a valid pointer. */ *data = 0; return; } p = (char *)pointer + stat->stat_offset; switch (stat->sizeof_stat) { case sizeof(u64): *data = *((u64 *)p); break; case sizeof(u32): *data = *((u32 *)p); break; case sizeof(u16): *data = *((u16 *)p); break; case sizeof(u8): *data = *((u8 *)p); break; default: WARN_ONCE(1, "unexpected stat size for %s", stat->stat_string); *data = 0; } } /** * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer * @data: ethtool stats buffer * @pointer: location to copy stats from * @stats: array of stats to copy * @size: the size of the stats definition * * Copy the stats defined by the stats array using the pointer as a base into * the data buffer supplied by ethtool. Updates the data pointer to point to * the next empty location for successive calls to __i40e_add_ethtool_stats. * If pointer is null, set the data values to zero and update the pointer to * skip these stats. **/ static void __i40e_add_ethtool_stats(u64 **data, void *pointer, const struct i40e_stats stats[], const unsigned int size) { unsigned int i; for (i = 0; i < size; i++) i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); } /** * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer * @data: ethtool stats buffer * @pointer: location where stats are stored * @stats: static const array of stat definitions * * Macro to ease the use of __i40e_add_ethtool_stats by taking a static * constant stats array and passing the ARRAY_SIZE(). This avoids typos by * ensuring that we pass the size associated with the given stats array. * * The parameter @stats is evaluated twice, so parameters with side effects * should be avoided. **/ #define i40e_add_ethtool_stats(data, pointer, stats) \ __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) /** * i40e_add_queue_stats - copy queue statistics into supplied buffer * @data: ethtool stats buffer * @ring: the ring to copy * * Queue statistics must be copied while protected by * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats. * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the * ring pointer is null, zero out the queue stat values and update the data * pointer. Otherwise safely copy the stats from the ring into the supplied * buffer and update the data pointer when finished. * * This function expects to be called while under rcu_read_lock(). **/ static void i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) { const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); const struct i40e_stats *stats = i40e_gstrings_queue_stats; unsigned int start; unsigned int i; /* To avoid invalid statistics values, ensure that we keep retrying * the copy until we get a consistent value according to * u64_stats_fetch_retry. But first, make sure our ring is * non-null before attempting to access its syncp. */ do { start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp); for (i = 0; i < size; i++) { i40e_add_one_ethtool_stat(&(*data)[i], ring, &stats[i]); } } while (ring && u64_stats_fetch_retry(&ring->syncp, start)); /* Once we successfully copy the stats in, update the data pointer */ *data += size; } /** * __i40e_add_stat_strings - copy stat strings into ethtool buffer * @p: ethtool supplied buffer * @stats: stat definitions array * @size: size of the stats array * * Format and copy the strings described by stats into the buffer pointed at * by p. **/ static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], const unsigned int size, ...) { unsigned int i; for (i = 0; i < size; i++) { va_list args; va_start(args, size); vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); *p += ETH_GSTRING_LEN; va_end(args); } } /** * i40e_add_stat_strings - copy stat strings into ethtool buffer * @p: ethtool supplied buffer * @stats: stat definitions array * * Format and copy the strings described by the const static stats value into * the buffer pointed at by p. * * The parameter @stats is evaluated twice, so parameters with side effects * should be avoided. Additionally, stats must be an array such that * ARRAY_SIZE can be called on it. **/ #define i40e_add_stat_strings(p, stats, ...) \ __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) #define I40E_PF_STAT(_name, _stat) \ I40E_STAT(struct i40e_pf, _name, _stat) #define I40E_VSI_STAT(_name, _stat) \ I40E_STAT(struct i40e_vsi, _name, _stat) #define I40E_VEB_STAT(_name, _stat) \ I40E_STAT(struct i40e_veb, _name, _stat) #define I40E_VEB_TC_STAT(_name, _stat) \ I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) #define I40E_PFC_STAT(_name, _stat) \ I40E_STAT(struct i40e_pfc_stats, _name, _stat) static const struct i40e_stats i40e_gstrings_net_stats[] = { I40E_NETDEV_STAT(rx_packets), I40E_NETDEV_STAT(tx_packets), I40E_NETDEV_STAT(rx_bytes), I40E_NETDEV_STAT(tx_bytes), I40E_NETDEV_STAT(rx_errors), I40E_NETDEV_STAT(tx_errors), I40E_NETDEV_STAT(rx_dropped), I40E_NETDEV_STAT(rx_missed_errors), I40E_NETDEV_STAT(tx_dropped), I40E_NETDEV_STAT(collisions), I40E_NETDEV_STAT(rx_length_errors), I40E_NETDEV_STAT(rx_crc_errors), }; static const struct i40e_stats i40e_gstrings_veb_stats[] = { I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), }; struct i40e_cp_veb_tc_stats { u64 tc_rx_packets; u64 tc_rx_bytes; u64 tc_tx_packets; u64 tc_tx_bytes; }; static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), }; static const struct i40e_stats i40e_gstrings_misc_stats[] = { I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), I40E_VSI_STAT("tx_linearize", tx_linearize), I40E_VSI_STAT("tx_force_wb", tx_force_wb), I40E_VSI_STAT("tx_busy", tx_busy), I40E_VSI_STAT("tx_stopped", tx_stopped), I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), I40E_VSI_STAT("rx_cache_waive", rx_page_waive), I40E_VSI_STAT("rx_cache_busy", rx_page_busy), I40E_VSI_STAT("tx_restart", tx_restart), }; /* These PF_STATs might look like duplicates of some NETDEV_STATs, * but they are separate. This device supports Virtualization, and * as such might have several netdevs supporting VMDq and FCoE going * through a single port. The NETDEV_STATs are for individual netdevs * seen at the top of the stack, and the PF_STATs are for the physical * function at the bottom of the stack hosting those netdevs. * * The PF_STATs are appended to the netdev stats only when ethtool -S * is queried on the base PF netdev, not on the VMDq or FCoE netdev. */ static const struct i40e_stats i40e_gstrings_stats[] = { I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), I40E_PF_STAT("port.rx_discards", stats.eth.rx_discards), I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), I40E_PF_STAT("port.tx_timeout", tx_timeout_count), I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), I40E_PF_STAT("port.arq_overflows", arq_overflows), I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), /* LPI stats */ I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), }; struct i40e_pfc_stats { u64 priority_xon_rx; u64 priority_xoff_rx; u64 priority_xon_tx; u64 priority_xoff_tx; u64 priority_xon_2_xoff; }; static const struct i40e_stats i40e_gstrings_pfc_stats[] = { I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), }; #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ I40E_MAX_USER_PRIORITY) #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ I40E_MAX_TRAFFIC_CLASS)) #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ I40E_PFC_STATS_LEN + \ I40E_VEB_STATS_LEN + \ I40E_VSI_STATS_LEN) /* Length of stats for a single queue */ #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) enum i40e_ethtool_test_id { I40E_ETH_TEST_REG = 0, I40E_ETH_TEST_EEPROM, I40E_ETH_TEST_INTR, I40E_ETH_TEST_LINK, }; static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { "Register test (offline)", "Eeprom test (offline)", "Interrupt test (offline)", "Link test (on/offline)" }; #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) struct i40e_priv_flags { char flag_string[ETH_GSTRING_LEN]; u8 bitno; bool read_only; }; #define I40E_PRIV_FLAG(_name, _bitno, _read_only) { \ .flag_string = _name, \ .bitno = _bitno, \ .read_only = _read_only, \ } static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { /* NOTE: MFP setting cannot be changed */ I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENA, 1), I40E_PRIV_FLAG("total-port-shutdown", I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, 1), I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENA, 0), I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENA, 0), I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENA, 0), I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENA, 0), I40E_PRIV_FLAG("link-down-on-close", I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, 0), I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX_ENA, 0), I40E_PRIV_FLAG("disable-source-pruning", I40E_FLAG_SOURCE_PRUNING_DIS, 0), I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_FW_LLDP_DIS, 0), I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), I40E_PRIV_FLAG("vf-vlan-pruning", I40E_FLAG_VF_VLAN_PRUNING_ENA, 0), I40E_PRIV_FLAG("mdd-auto-reset-vf", I40E_FLAG_MDD_AUTO_RESET_VF, 0), }; #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) /* Private flags with a global effect, restricted to PF 0 */ static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { I40E_PRIV_FLAG("vf-true-promisc-support", I40E_FLAG_TRUE_PROMISC_ENA, 0), }; #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) /** * i40e_partition_setting_complaint - generic complaint for MFP restriction * @pf: the PF struct **/ static void i40e_partition_setting_complaint(struct i40e_pf *pf) { dev_info(&pf->pdev->dev, "The link settings are allowed to be changed only from the first partition of a given port. Pleas } /** * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes * @pf: PF struct with phy_types * @ks: ethtool link ksettings struct to fill out * **/ static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, struct ethtool_link_ksettings *ks) { struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; u64 phy_types = pf->hw.phy.phy_types; ethtool_link_ksettings_zero_link_mode(ks, supported); ethtool_link_ksettings_zero_link_mode(ks, advertising); if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseT_Full); if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { ethtool_link_ksettings_add_link_mode(ks, supported, 100baseT_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 100baseT_Full); } } if (phy_types & I40E_CAP_PHY_TYPE_XAUI || phy_types & I40E_CAP_PHY_TYPE_XFI || phy_types & I40E_CAP_PHY_TYPE_SFI || phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseT_Full); } if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseT_Full); } if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { ethtool_link_ksettings_add_link_mode(ks, supported, 2500baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 2500baseT_Full); } if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { ethtool_link_ksettings_add_link_mode(ks, supported, 5000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 5000baseT_Full); } if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || phy_types & I40E_CAP_PHY_TYPE_XLPPI || phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseCR4_Full); if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseCR4_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseCR4_Full); } if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { ethtool_link_ksettings_add_link_mode(ks, supported, 100baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) ethtool_link_ksettings_add_link_mode(ks, advertising, 100baseT_Full); } if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseT_Full); } if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseSR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseSR4_Full); } if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseLR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseLR4_Full); } if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseKR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseKR4_Full); } if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { ethtool_link_ksettings_add_link_mode(ks, supported, 20000baseKR2_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 20000baseKR2_Full); } if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseKX4_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseKX4_Full); } if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseKR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseKR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseKX_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseKX_Full); } /* need to add 25G PHY types */ if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseKR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseKR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseCR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseCR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseSR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseSR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseCR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseCR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_BASER); } } /* need to add new 10G PHY types */ if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseCR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseCR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseSR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseSR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseLR_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseLR_Full); } if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseX_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseX_Full); } /* Autoneg PHY types */ if (phy_types & I40E_CAP_PHY_TYPE_SGMII || phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); } } /** * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask * @req_fec_info: mask request FEC info * @ks: ethtool ksettings to fill in **/ static void i40e_get_settings_link_up_fec(u8 req_fec_info, struct ethtool_link_ksettings *ks) { ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_BASER); ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_BASER); } else { ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); } } /** * i40e_get_settings_link_up - Get the Link settings for when link is up * @hw: hw structure * @ks: ethtool ksettings to fill in * @netdev: network interface device structure * @pf: pointer to physical function struct **/ static void i40e_get_settings_link_up(struct i40e_hw *hw, struct ethtool_link_ksettings *ks, struct net_device *netdev, struct i40e_pf *pf) { struct i40e_link_status *hw_link_info = &hw->phy.link_info; struct ethtool_link_ksettings cap_ksettings; u32 link_speed = hw_link_info->link_speed; /* Initialize supported and advertised settings based on phy settings */ switch (hw_link_info->phy_type) { case I40E_PHY_TYPE_40GBASE_CR4: case I40E_PHY_TYPE_40GBASE_CR4_CU: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseCR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseCR4_Full); break; case I40E_PHY_TYPE_XLAUI: case I40E_PHY_TYPE_XLPPI: case I40E_PHY_TYPE_40GBASE_AOC: ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseCR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseCR4_Full); break; case I40E_PHY_TYPE_40GBASE_SR4: ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseSR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseSR4_Full); break; case I40E_PHY_TYPE_40GBASE_LR4: ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseLR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseLR4_Full); break; case I40E_PHY_TYPE_25GBASE_SR: case I40E_PHY_TYPE_25GBASE_LR: case I40E_PHY_TYPE_10GBASE_SR: case I40E_PHY_TYPE_10GBASE_LR: case I40E_PHY_TYPE_1000BASE_SX: case I40E_PHY_TYPE_1000BASE_LX: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseSR_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseSR_Full); i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseSR_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseSR_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseLR_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseLR_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseX_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseX_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseT_Full); if (hw_link_info->module_type[2] & I40E_MODULE_TYPE_1000BASE_SX || hw_link_info->module_type[2] & I40E_MODULE_TYPE_1000BASE_LX) { ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) ethtool_link_ksettings_add_link_mode( ks, advertising, 1000baseT_Full); } if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseT_Full); break; case I40E_PHY_TYPE_10GBASE_T: case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: case I40E_PHY_TYPE_1000BASE_T: case I40E_PHY_TYPE_100BASE_TX: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseT_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 5000baseT_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 2500baseT_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseT_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 100baseT_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 5000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 2500baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) ethtool_link_ksettings_add_link_mode(ks, advertising, 100baseT_Full); break; case I40E_PHY_TYPE_1000BASE_T_OPTICAL: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseT_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseT_Full); break; case I40E_PHY_TYPE_10GBASE_CR1_CU: case I40E_PHY_TYPE_10GBASE_CR1: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseT_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseT_Full); break; case I40E_PHY_TYPE_XAUI: case I40E_PHY_TYPE_XFI: case I40E_PHY_TYPE_SFI: case I40E_PHY_TYPE_10GBASE_SFPP_CU: case I40E_PHY_TYPE_10GBASE_AOC: ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseT_Full); i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); break; case I40E_PHY_TYPE_SGMII: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseT_Full); if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { ethtool_link_ksettings_add_link_mode(ks, supported, 100baseT_Full); if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) ethtool_link_ksettings_add_link_mode( ks, advertising, 100baseT_Full); } break; case I40E_PHY_TYPE_40GBASE_KR4: case I40E_PHY_TYPE_25GBASE_KR: case I40E_PHY_TYPE_20GBASE_KR2: case I40E_PHY_TYPE_10GBASE_KR: case I40E_PHY_TYPE_10GBASE_KX4: case I40E_PHY_TYPE_1000BASE_KX: ethtool_link_ksettings_add_link_mode(ks, supported, 40000baseKR4_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseKR_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 20000baseKR2_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseKR_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseKX4_Full); ethtool_link_ksettings_add_link_mode(ks, supported, 1000baseKX_Full); ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, 40000baseKR4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseKR_Full); i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); ethtool_link_ksettings_add_link_mode(ks, advertising, 20000baseKR2_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseKR_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseKX4_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 1000baseKX_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); break; case I40E_PHY_TYPE_25GBASE_CR: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseCR_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseCR_Full); i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); break; case I40E_PHY_TYPE_25GBASE_AOC: case I40E_PHY_TYPE_25GBASE_ACC: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, 25000baseCR_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 25000baseCR_Full); i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); ethtool_link_ksettings_add_link_mode(ks, supported, 10000baseCR_Full); ethtool_link_ksettings_add_link_mode(ks, advertising, 10000baseCR_Full); break; default: /* if we got here and link is up something bad is afoot */ netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", hw_link_info->phy_type); } /* Now that we've worked out everything that could be supported by the * current PHY type, get what is supported by the NVM and intersect * them to get what is truly supported */ memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); i40e_phy_type_to_ethtool(pf, &cap_ksettings); ethtool_intersect_link_masks(ks, &cap_ksettings); /* Set speed and duplex */ switch (link_speed) { case I40E_LINK_SPEED_40GB: ks->base.speed = SPEED_40000; break; case I40E_LINK_SPEED_25GB: ks->base.speed = SPEED_25000; break; case I40E_LINK_SPEED_20GB: ks->base.speed = SPEED_20000; break; case I40E_LINK_SPEED_10GB: ks->base.speed = SPEED_10000; break; case I40E_LINK_SPEED_5GB: ks->base.speed = SPEED_5000; break; case I40E_LINK_SPEED_2_5GB: ks->base.speed = SPEED_2500; break; case I40E_LINK_SPEED_1GB: ks->base.speed = SPEED_1000; break; case I40E_LINK_SPEED_100MB: ks->base.speed = SPEED_100; break; default: ks->base.speed = SPEED_UNKNOWN; break; } ks->base.duplex = DUPLEX_FULL; } /** * i40e_get_settings_link_down - Get the Link settings for when link is down * @hw: hw structure * @ks: ethtool ksettings to fill in * @pf: pointer to physical function struct * * Reports link settings that can be determined when link is down **/ static void i40e_get_settings_link_down(struct i40e_hw *hw, struct ethtool_link_ksettings *ks, struct i40e_pf *pf) { /* link is down and the driver needs to fall back on * supported phy types to figure out what info to display */ i40e_phy_type_to_ethtool(pf, ks); /* With no link speed and duplex are unknown */ ks->base.speed = SPEED_UNKNOWN; ks->base.duplex = DUPLEX_UNKNOWN; } /** * i40e_get_link_ksettings - Get Link Speed and Duplex settings * @netdev: network interface device structure * @ks: ethtool ksettings * * Reports speed/duplex settings based on media_type **/ static int i40e_get_link_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *ks) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; struct i40e_link_status *hw_link_info = &hw->phy.link_info; bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; ethtool_link_ksettings_zero_link_mode(ks, supported); ethtool_link_ksettings_zero_link_mode(ks, advertising); if (link_up) i40e_get_settings_link_up(hw, ks, netdev, pf); else i40e_get_settings_link_down(hw, ks, pf); /* Now set the settings that don't rely on link being up/down */ /* Set autoneg settings */ ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? AUTONEG_ENABLE : AUTONEG_DISABLE); /* Set media type settings */ switch (hw->phy.media_type) { case I40E_MEDIA_TYPE_BACKPLANE: ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); ethtool_link_ksettings_add_link_mode(ks, advertising, Backplane); ks->base.port = PORT_NONE; break; case I40E_MEDIA_TYPE_BASET: ethtool_link_ksettings_add_link_mode(ks, supported, TP); ethtool_link_ksettings_add_link_mode(ks, advertising, TP); ks->base.port = PORT_TP; break; case I40E_MEDIA_TYPE_DA: case I40E_MEDIA_TYPE_CX4: ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); ks->base.port = PORT_DA; break; case I40E_MEDIA_TYPE_FIBER: ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); ks->base.port = PORT_FIBRE; break; case I40E_MEDIA_TYPE_UNKNOWN: default: ks->base.port = PORT_OTHER; break; } /* Set flow control settings */ ethtool_link_ksettings_add_link_mode(ks, supported, Pause); ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); switch (hw->fc.requested_mode) { case I40E_FC_FULL: ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); break; case I40E_FC_TX_PAUSE: ethtool_link_ksettings_add_link_mode(ks, advertising, Asym_Pause); break; case I40E_FC_RX_PAUSE: ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); ethtool_link_ksettings_add_link_mode(ks, advertising, Asym_Pause); break; default: ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); ethtool_link_ksettings_del_link_mode(ks, advertising, Asym_Pause); break; } return 0; } #define I40E_LBIT_SIZE 8 /** * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed * @speed: speed in decimal * @ks: ethtool ksettings * * Return i40e_aq_link_speed based on speed **/ static enum i40e_aq_link_speed i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) { enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; bool speed_changed = false; int i, j; static const struct { __u32 speed; enum i40e_aq_link_speed link_speed; __u8 bit[I40E_LBIT_SIZE]; } i40e_speed_lut[] = { #define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, {SPEED_1000, I40E_LINK_SPEED_1GB, {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), I40E_LBIT(1000baseKX)} }, {SPEED_10000, I40E_LINK_SPEED_10GB, {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, {SPEED_25000, I40E_LINK_SPEED_25GB, {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), I40E_LBIT(25000baseSR)} }, {SPEED_40000, I40E_LINK_SPEED_40GB, {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, {SPEED_20000, I40E_LINK_SPEED_20GB, {I40E_LBIT(20000baseKR2)} }, {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } #undef I40E_LBIT }; for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { if (i40e_speed_lut[i].speed == speed) { for (j = 0; j < I40E_LBIT_SIZE; j++) { if (test_bit(i40e_speed_lut[i].bit[j], ks->link_modes.supported)) { speed_changed = true; break; } if (!i40e_speed_lut[i].bit[j]) break; } if (speed_changed) { link_speed = i40e_speed_lut[i].link_speed; break; } } } return link_speed; } #undef I40E_LBIT_SIZE /** * i40e_set_link_ksettings - Set Speed and Duplex * @netdev: network interface device structure * @ks: ethtool ksettings * * Set speed/duplex per media_types advertised/forced **/ static int i40e_set_link_ksettings(struct net_device *netdev, const struct ethtool_link_ksettings *ks) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_aq_get_phy_abilities_resp abilities; struct ethtool_link_ksettings safe_ks; struct ethtool_link_ksettings copy_ks; struct i40e_aq_set_phy_config config; struct i40e_pf *pf = np->vsi->back; enum i40e_aq_link_speed link_speed; struct i40e_vsi *vsi = np->vsi; struct i40e_hw *hw = &pf->hw; bool autoneg_changed = false; int timeout = 50; int status = 0; int err = 0; __u32 speed; u8 autoneg; /* Changing port settings is not supported if this isn't the * port's controlling PF */ if (hw->partition_id != 1) { i40e_partition_setting_complaint(pf); return -EOPNOTSUPP; } if (vsi->type != I40E_VSI_MAIN) return -EOPNOTSUPP; if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && hw->phy.media_type != I40E_MEDIA_TYPE_DA && hw->phy.link_info.link_info & I40E_AQ_LINK_UP) return -EOPNOTSUPP; if (hw->device_id == I40E_DEV_ID_KX_B || hw->device_id == I40E_DEV_ID_KX_C || hw->device_id == I40E_DEV_ID_20G_KR2 || hw->device_id == I40E_DEV_ID_20G_KR2_A || hw->device_id == I40E_DEV_ID_25G_B || hw->device_id == I40E_DEV_ID_KX_X722) { netdev_info(netdev, "Changing settings is not supported on backplane.\n"); return -EOPNOTSUPP; } /* copy the ksettings to copy_ks to avoid modifying the origin */ memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); /* save autoneg out of ksettings */ autoneg = copy_ks.base.autoneg; speed = copy_ks.base.speed; /* get our own copy of the bits to check against */ memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); safe_ks.base.cmd = copy_ks.base.cmd; safe_ks.base.link_mode_masks_nwords = copy_ks.base.link_mode_masks_nwords; i40e_get_link_ksettings(netdev, &safe_ks); /* Get link modes supported by hardware and check against modes * requested by the user. Return an error if unsupported mode was set. */ if (!bitmap_subset(copy_ks.link_modes.advertising, safe_ks.link_modes.supported, __ETHTOOL_LINK_MODE_MASK_NBITS)) return -EINVAL; /* set autoneg back to what it currently is */ copy_ks.base.autoneg = safe_ks.base.autoneg; copy_ks.base.speed = safe_ks.base.speed; /* If copy_ks.base and safe_ks.base are not the same now, then they are * trying to set something that we do not support. */ if (memcmp(©_ks.base, &safe_ks.base, sizeof(struct ethtool_link_settings))) { netdev_err(netdev, "Only speed and autoneg are supported.\n"); return -EOPNOTSUPP; } while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { timeout--; if (!timeout) return -EBUSY; usleep_range(1000, 2000); } /* Get the current phy config */ status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, NULL); if (status) { err = -EAGAIN; goto done; } /* Copy abilities to config in case autoneg is not * set below */ memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); config.abilities = abilities.abilities; /* Check autoneg */ if (autoneg == AUTONEG_ENABLE) { /* If autoneg was not already enabled */ if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { /* If autoneg is not supported, return error */ if (!ethtool_link_ksettings_test_link_mode(&safe_ks, supported, Autoneg)) { netdev_info(netdev, "Autoneg not supported on this phy\n"); err = -EINVAL; goto done; } /* Autoneg is allowed to change */ config.abilities = abilities.abilities | I40E_AQ_PHY_ENABLE_AN; autoneg_changed = true; } } else { /* If autoneg is currently enabled */ if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { /* If autoneg is supported 10GBASE_T is the only PHY * that can disable it, so otherwise return error */ if (ethtool_link_ksettings_test_link_mode(&safe_ks, supported, Autoneg) && hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); err = -EINVAL; goto done; } /* Autoneg is allowed to change */ config.abilities = abilities.abilities & ~I40E_AQ_PHY_ENABLE_AN; autoneg_changed = true; } } if (ethtool_link_ksettings_test_link_mode(ks, advertising, 100baseT_Full)) config.link_speed |= I40E_LINK_SPEED_100MB; if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1000baseT_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 1000baseX_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 1000baseKX_Full)) config.link_speed |= I40E_LINK_SPEED_1GB; if (ethtool_link_ksettings_test_link_mode(ks, advertising, 10000baseT_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 10000baseKX4_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 10000baseKR_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 10000baseCR_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 10000baseSR_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 10000baseLR_Full)) config.link_speed |= I40E_LINK_SPEED_10GB; if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2500baseT_Full)) config.link_speed |= I40E_LINK_SPEED_2_5GB; if (ethtool_link_ksettings_test_link_mode(ks, advertising, 5000baseT_Full)) config.link_speed |= I40E_LINK_SPEED_5GB; if (ethtool_link_ksettings_test_link_mode(ks, advertising, 20000baseKR2_Full)) config.link_speed |= I40E_LINK_SPEED_20GB; if (ethtool_link_ksettings_test_link_mode(ks, advertising, 25000baseCR_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 25000baseKR_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 25000baseSR_Full)) config.link_speed |= I40E_LINK_SPEED_25GB; if (ethtool_link_ksettings_test_link_mode(ks, advertising, 40000baseKR4_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 40000baseCR4_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 40000baseSR4_Full) || ethtool_link_ksettings_test_link_mode(ks, advertising, 40000baseLR4_Full)) config.link_speed |= I40E_LINK_SPEED_40GB; /* Autonegotiation must be disabled to change speed */ if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && (autoneg == AUTONEG_DISABLE || (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { link_speed = i40e_speed_to_link_speed(speed, ks); if (link_speed == I40E_LINK_SPEED_UNKNOWN) { netdev_info(netdev, "Given speed is not supported\n"); err = -EOPNOTSUPP; goto done; } else { config.link_speed = link_speed; } } else { if (safe_ks.base.speed != speed) { netdev_info(netdev, "Unable to set speed, disable autoneg\n"); err = -EOPNOTSUPP; goto done; } } /* If speed didn't get set, set it to what it currently is. * This is needed because if advertise is 0 (as it is when autoneg * is disabled) then speed won't get set. */ if (!config.link_speed) config.link_speed = abilities.link_speed; if (autoneg_changed || abilities.link_speed != config.link_speed) { /* copy over the rest of the abilities */ config.phy_type = abilities.phy_type; config.phy_type_ext = abilities.phy_type_ext; config.eee_capability = abilities.eee_capability; config.eeer = abilities.eeer_val; config.low_power_ctrl = abilities.d3_lpan; config.fec_config = abilities.fec_cfg_curr_mod_ext_info & I40E_AQ_PHY_FEC_CONFIG_MASK; /* save the requested speeds */ hw->phy.link_info.requested_speeds = config.link_speed; /* set link and auto negotiation so changes take effect */ config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; /* If link is up put link down */ if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { /* Tell the OS link is going down, the link will go * back up when fw says it is ready asynchronously */ i40e_print_link_message(vsi, false); netif_carrier_off(netdev); netif_tx_stop_all_queues(netdev); } /* make the aq call */ status = i40e_aq_set_phy_config(hw, &config, NULL); if (status) { netdev_info(netdev, "Set phy config failed, err %pe aq_err %s\n", ERR_PTR(status), libie_aq_str(hw->aq.asq_last_status)); err = -EAGAIN; goto done; } status = i40e_update_link_info(hw); if (status) netdev_dbg(netdev, "Updating link info failed with err %pe aq_err %s\n", ERR_PTR(status), libie_aq_str(hw->aq.asq_last_status)); } else { netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); } done: clear_bit(__I40E_CONFIG_BUSY, pf->state); return err; } static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_aq_get_phy_abilities_resp abilities; struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; int status = 0; int err = 0; /* Get the current phy config */ memset(&abilities, 0, sizeof(abilities)); status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, NULL); if (status) { err = -EAGAIN; goto done; } if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { struct i40e_aq_set_phy_config config; memset(&config, 0, sizeof(config)); config.phy_type = abilities.phy_type; config.abilities = abilities.abilities | I40E_AQ_PHY_ENABLE_ATOMIC_LINK; config.phy_type_ext = abilities.phy_type_ext; config.link_speed = abilities.link_speed; config.eee_capability = abilities.eee_capability; config.eeer = abilities.eeer_val; config.low_power_ctrl = abilities.d3_lpan; config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; status = i40e_aq_set_phy_config(hw, &config, NULL); if (status) { netdev_info(netdev, "Set phy config failed, err %pe aq_err %s\n", ERR_PTR(status), libie_aq_str(hw->aq.asq_last_status)); err = -EAGAIN; goto done; } i40e_set_fec_in_flags(fec_cfg, pf->flags); status = i40e_update_link_info(hw); if (status) /* debug level message only due to relation to the link * itself rather than to the FEC settings * (e.g. no physical connection etc.) */ netdev_dbg(netdev, "Updating link info failed with err %pe aq_err %s\n", ERR_PTR(status), libie_aq_str(hw->aq.asq_last_status)); } done: return err; } static int i40e_get_fec_param(struct net_device *netdev, struct ethtool_fecparam *fecparam) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_aq_get_phy_abilities_resp abilities; struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; int status = 0; int err = 0; u8 fec_cfg; /* Get the current phy config */ memset(&abilities, 0, sizeof(abilities)); status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, NULL); if (status) { err = -EAGAIN; goto done; } fecparam->fec = 0; fec_cfg = abilities.fec_cfg_curr_mod_ext_info; if (fec_cfg & I40E_AQ_SET_FEC_AUTO) fecparam->fec |= ETHTOOL_FEC_AUTO; else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | I40E_AQ_SET_FEC_ABILITY_RS)) fecparam->fec |= ETHTOOL_FEC_RS; else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | I40E_AQ_SET_FEC_ABILITY_KR)) fecparam->fec |= ETHTOOL_FEC_BASER; if (fec_cfg == 0) fecparam->fec |= ETHTOOL_FEC_OFF; if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) fecparam->active_fec = ETHTOOL_FEC_BASER; else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) fecparam->active_fec = ETHTOOL_FEC_RS; else fecparam->active_fec = ETHTOOL_FEC_OFF; done: return err; } static int i40e_set_fec_param(struct net_device *netdev, struct ethtool_fecparam *fecparam) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; u8 fec_cfg = 0; if (hw->device_id != I40E_DEV_ID_25G_SFP28 && hw->device_id != I40E_DEV_ID_25G_B && hw->device_id != I40E_DEV_ID_KX_X722) return -EPERM; if (hw->mac.type == I40E_MAC_X722 && !test_bit(I40E_HW_CAP_X722_FEC_REQUEST, hw->caps)) { netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM im return -EOPNOTSUPP; } switch (fecparam->fec) { case ETHTOOL_FEC_AUTO: fec_cfg = I40E_AQ_SET_FEC_AUTO; break; case ETHTOOL_FEC_RS: fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | I40E_AQ_SET_FEC_ABILITY_RS); break; case ETHTOOL_FEC_BASER: fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | I40E_AQ_SET_FEC_ABILITY_KR); break; case ETHTOOL_FEC_OFF: case ETHTOOL_FEC_NONE: fec_cfg = 0; break; default: dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", fecparam->fec); return -EINVAL; } return i40e_set_fec_cfg(netdev, fec_cfg); } static int i40e_nway_reset(struct net_device *netdev) { /* restart autonegotiation */ struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; int ret = 0; ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); if (ret) { netdev_info(netdev, "link restart failed, err %pe aq_err %s\n", ERR_PTR(ret), libie_aq_str(hw->aq.asq_last_status)); return -EIO; } return 0; } /** * i40e_get_pauseparam - Get Flow Control status * @netdev: netdevice structure * @pause: buffer to return pause parameters * * Return tx/rx-pause status **/ static void i40e_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; struct i40e_link_status *hw_link_info = &hw->phy.link_info; struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; pause->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? AUTONEG_ENABLE : AUTONEG_DISABLE); /* PFC enabled so report LFC as off */ if (dcbx_cfg->pfc.pfcenable) { pause->rx_pause = 0; pause->tx_pause = 0; return; } if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { pause->rx_pause = 1; } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { pause->tx_pause = 1; } else if (hw->fc.current_mode == I40E_FC_FULL) { pause->rx_pause = 1; pause->tx_pause = 1; } } /** * i40e_set_pauseparam - Set Flow Control parameter * @netdev: network interface device structure * @pause: return tx/rx flow control status **/ static int i40e_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_vsi *vsi = np->vsi; struct i40e_hw *hw = &pf->hw; struct i40e_link_status *hw_link_info = &hw->phy.link_info; struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; u8 aq_failures; int err = 0; int status; u32 is_an; /* Changing the port's flow control is not supported if this isn't the * port's controlling PF */ if (hw->partition_id != 1) { i40e_partition_setting_complaint(pf); return -EOPNOTSUPP; } if (vsi->type != I40E_VSI_MAIN) return -EOPNOTSUPP; is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; if (pause->autoneg != is_an) { netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); return -EOPNOTSUPP; } /* If we have link and don't have autoneg */ if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { /* Send message that it might not necessarily work*/ netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actua } if (dcbx_cfg->pfc.pfcenable) { netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n"); return -EOPNOTSUPP; } if (pause->rx_pause && pause->tx_pause) hw->fc.requested_mode = I40E_FC_FULL; else if (pause->rx_pause && !pause->tx_pause) hw->fc.requested_mode = I40E_FC_RX_PAUSE; else if (!pause->rx_pause && pause->tx_pause) hw->fc.requested_mode = I40E_FC_TX_PAUSE; else if (!pause->rx_pause && !pause->tx_pause) hw->fc.requested_mode = I40E_FC_NONE; else return -EINVAL; /* Tell the OS link is going down, the link will go back up when fw * says it is ready asynchronously */ i40e_print_link_message(vsi, false); netif_carrier_off(netdev); netif_tx_stop_all_queues(netdev); /* Set the fc mode and only restart an if link is up*/ status = i40e_set_fc(hw, &aq_failures, link_up); if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n ERR_PTR(status), libie_aq_str(hw->aq.asq_last_status)); err = -EAGAIN; } if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n", ERR_PTR(status), libie_aq_str(hw->aq.asq_last_status)); err = -EAGAIN; } if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n", ERR_PTR(status), libie_aq_str(hw->aq.asq_last_status)); err = -EAGAIN; } if (!test_bit(__I40E_DOWN, pf->state) && is_an) { /* Give it a little more time to try to come back */ msleep(75); if (!test_bit(__I40E_DOWN, pf->state)) return i40e_nway_reset(netdev); } return err; } static u32 i40e_get_msglevel(struct net_device *netdev) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; u32 debug_mask = pf->hw.debug_mask; if (debug_mask) netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); return pf->msg_enable; } static void i40e_set_msglevel(struct net_device *netdev, u32 data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; if (I40E_DEBUG_USER & data) pf->hw.debug_mask = data; else pf->msg_enable = data; } static int i40e_get_regs_len(struct net_device *netdev) { int reg_count = 0; int i; for (i = 0; i40e_reg_list[i].offset != 0; i++) reg_count += i40e_reg_list[i].elements; return reg_count * sizeof(u32); } static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; u32 *reg_buf = p; unsigned int i, j, ri; u32 reg; /* Tell ethtool which driver-version-specific regs output we have. * * At some point, if we have ethtool doing special formatting of * this data, it will rely on this version number to know how to * interpret things. Hence, this needs to be updated if/when the * diags register table is changed. */ regs->version = 1; /* loop through the diags reg table for what to print */ ri = 0; for (i = 0; i40e_reg_list[i].offset != 0; i++) { for (j = 0; j < i40e_reg_list[i].elements; j++) { reg = i40e_reg_list[i].offset + (j * i40e_reg_list[i].stride); reg_buf[ri++] = rd32(hw, reg); } } } static int i40e_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, u8 *bytes) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_hw *hw = &np->vsi->back->hw; struct i40e_pf *pf = np->vsi->back; int ret_val = 0, len, offset; u8 *eeprom_buff; u16 i, sectors; bool last; u32 magic; #define I40E_NVM_SECTOR_SIZE 4096 if (eeprom->len == 0) return -EINVAL; /* check for NVMUpdate access method */ magic = hw->vendor_id | (hw->device_id << 16); if (eeprom->magic && eeprom->magic != magic) { struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; int errno = 0; /* make sure it is the right magic for NVMUpdate */ if ((eeprom->magic >> 16) != hw->device_id) errno = -EINVAL; else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) errno = -EBUSY; else ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) dev_info(&pf->pdev->dev, "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", ret_val, hw->aq.asq_last_status, errno, (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), cmd->offset, cmd->data_size); return errno; } /* normal ethtool get_eeprom support */ eeprom->magic = hw->vendor_id | (hw->device_id << 16); eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); if (!eeprom_buff) return -ENOMEM; ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); if (ret_val) { dev_info(&pf->pdev->dev, "Failed Acquiring NVM resource for read err=%d status=0x%x\n", ret_val, hw->aq.asq_last_status); goto free_buff; } sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; len = I40E_NVM_SECTOR_SIZE; last = false; for (i = 0; i < sectors; i++) { if (i == (sectors - 1)) { len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); last = true; } offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i); ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), last, NULL); if (ret_val && hw->aq.asq_last_status == LIBIE_AQ_RC_EPERM) { dev_info(&pf->pdev->dev, "read NVM failed, invalid offset 0x%x\n", offset); break; } else if (ret_val && hw->aq.asq_last_status == LIBIE_AQ_RC_EACCES) { dev_info(&pf->pdev->dev, "read NVM failed, access, offset 0x%x\n", offset); break; } else if (ret_val) { dev_info(&pf->pdev->dev, "read NVM failed offset %d err=%d status=0x%x\n", offset, ret_val, hw->aq.asq_last_status); break; } } i40e_release_nvm(hw); memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); free_buff: kfree(eeprom_buff); return ret_val; } static int i40e_get_eeprom_len(struct net_device *netdev) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_hw *hw = &np->vsi->back->hw; u32 val; #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF if (hw->mac.type == I40E_MAC_X722) { val = X722_EEPROM_SCOPE_LIMIT + 1; return val; } val = FIELD_GET(I40E_GLPCI_LBARCTRL_FL_SIZE_MASK, rd32(hw, I40E_GLPCI_LBARCTRL)); /* register returns value in power of 2, 64Kbyte chunks. */ val = (64 * 1024) * BIT(val); return val; } static int i40e_set_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, u8 *bytes) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_hw *hw = &np->vsi->back->hw; struct i40e_pf *pf = np->vsi->back; struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; int ret_val = 0; int errno = 0; u32 magic; /* normal ethtool set_eeprom is not supported */ magic = hw->vendor_id | (hw->device_id << 16); if (eeprom->magic == magic) errno = -EOPNOTSUPP; /* check for NVMUpdate access method */ else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) errno = -EINVAL; else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) errno = -EBUSY; else ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) dev_info(&pf->pdev->dev, "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", ret_val, hw->aq.asq_last_status, errno, (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), cmd->offset, cmd->data_size); return errno; } static void i40e_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); i40e_nvm_version_str(&pf->hw, drvinfo->fw_version, sizeof(drvinfo->fw_version)); strscpy(drvinfo->bus_info, pci_name(pf->pdev), sizeof(drvinfo->bus_info)); drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; if (pf->hw.pf_id == 0) drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; } static u32 i40e_get_max_num_descriptors(struct i40e_pf *pf) { struct i40e_hw *hw = &pf->hw; switch (hw->mac.type) { case I40E_MAC_XL710: return I40E_MAX_NUM_DESCRIPTORS_XL710; default: return I40E_MAX_NUM_DESCRIPTORS; } } static void i40e_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, struct kernel_ethtool_ringparam *kernel_ring, struct netlink_ext_ack *extack) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_vsi *vsi = i40e_pf_get_main_vsi(pf); ring->rx_max_pending = i40e_get_max_num_descriptors(pf); ring->tx_max_pending = i40e_get_max_num_descriptors(pf); ring->rx_mini_max_pending = 0; ring->rx_jumbo_max_pending = 0; ring->rx_pending = vsi->rx_rings[0]->count; ring->tx_pending = vsi->tx_rings[0]->count; ring->rx_mini_pending = 0; ring->rx_jumbo_pending = 0; } static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) { if (i40e_enabled_xdp_vsi(vsi)) { return index < vsi->num_queue_pairs || (index >= vsi->alloc_queue_pairs && index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); } return index < vsi->num_queue_pairs; } static int i40e_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, struct kernel_ethtool_ringparam *kernel_ring, struct netlink_ext_ack *extack) { u32 new_rx_count, new_tx_count, max_num_descriptors; struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_hw *hw = &np->vsi->back->hw; struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; u16 tx_alloc_queue_pairs; int timeout = 50; int i, err = 0; if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) return -EINVAL; max_num_descriptors = i40e_get_max_num_descriptors(pf); if (ring->tx_pending > max_num_descriptors || ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || ring->rx_pending > max_num_descriptors || ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { netdev_info(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", ring->tx_pending, ring->rx_pending, I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors); return -EINVAL; } new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); /* if nothing to do return success */ if ((new_tx_count == vsi->tx_rings[0]->count) && (new_rx_count == vsi->rx_rings[0]->count)) return 0; /* If there is a AF_XDP page pool attached to any of Rx rings, * disallow changing the number of descriptors -- regardless * if the netdev is running or not. */ if (i40e_xsk_any_rx_ring_enabled(vsi)) return -EBUSY; while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { timeout--; if (!timeout) return -EBUSY; usleep_range(1000, 2000); } if (!netif_running(vsi->netdev)) { /* simple case - set for the next time the netdev is started */ for (i = 0; i < vsi->num_queue_pairs; i++) { vsi->tx_rings[i]->count = new_tx_count; vsi->rx_rings[i]->count = new_rx_count; if (i40e_enabled_xdp_vsi(vsi)) vsi->xdp_rings[i]->count = new_tx_count; } vsi->num_tx_desc = new_tx_count; vsi->num_rx_desc = new_rx_count; goto done; } /* We can't just free everything and then setup again, * because the ISRs in MSI-X mode get passed pointers * to the Tx and Rx ring structs. */ /* alloc updated Tx and XDP Tx resources */ tx_alloc_queue_pairs = vsi->alloc_queue_pairs * (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); if (new_tx_count != vsi->tx_rings[0]->count) { netdev_info(netdev, "Changing Tx descriptor count from %d to %d.\n", vsi->tx_rings[0]->count, new_tx_count); tx_rings = kcalloc(tx_alloc_queue_pairs, sizeof(struct i40e_ring), GFP_KERNEL); if (!tx_rings) { err = -ENOMEM; goto done; } for (i = 0; i < tx_alloc_queue_pairs; i++) { if (!i40e_active_tx_ring_index(vsi, i)) continue; tx_rings[i] = *vsi->tx_rings[i]; tx_rings[i].count = new_tx_count; /* the desc and bi pointers will be reallocated in the * setup call */ tx_rings[i].desc = NULL; tx_rings[i].rx_bi = NULL; err = i40e_setup_tx_descriptors(&tx_rings[i]); if (err) { while (i) { i--; if (!i40e_active_tx_ring_index(vsi, i)) continue; i40e_free_tx_resources(&tx_rings[i]); } kfree(tx_rings); tx_rings = NULL; goto done; } } } /* alloc updated Rx resources */ if (new_rx_count != vsi->rx_rings[0]->count) { netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n", vsi->rx_rings[0]->count, new_rx_count); rx_rings = kcalloc(vsi->alloc_queue_pairs, sizeof(struct i40e_ring), GFP_KERNEL); if (!rx_rings) { err = -ENOMEM; goto free_tx; } for (i = 0; i < vsi->num_queue_pairs; i++) { u16 unused; /* clone ring and setup updated count */ rx_rings[i] = *vsi->rx_rings[i]; rx_rings[i].count = new_rx_count; /* the desc and bi pointers will be reallocated in the * setup call */ rx_rings[i].desc = NULL; rx_rings[i].rx_bi = NULL; /* Clear cloned XDP RX-queue info before setup call */ memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); /* this is to allow wr32 to have something to write to * during early allocation of Rx buffers */ rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; err = i40e_setup_rx_descriptors(&rx_rings[i]); if (err) goto rx_unwind; /* now allocate the Rx buffers to make sure the OS * has enough memory, any failure here means abort */ unused = I40E_DESC_UNUSED(&rx_rings[i]); err = i40e_alloc_rx_buffers(&rx_rings[i], unused); rx_unwind: if (err) { do { i40e_free_rx_resources(&rx_rings[i]); } while (i--); kfree(rx_rings); rx_rings = NULL; goto free_tx; } } } /* Bring interface down, copy in the new ring info, * then restore the interface */ i40e_down(vsi); if (tx_rings) { for (i = 0; i < tx_alloc_queue_pairs; i++) { if (i40e_active_tx_ring_index(vsi, i)) { i40e_free_tx_resources(vsi->tx_rings[i]); *vsi->tx_rings[i] = tx_rings[i]; } } kfree(tx_rings); tx_rings = NULL; } if (rx_rings) { for (i = 0; i < vsi->num_queue_pairs; i++) { i40e_free_rx_resources(vsi->rx_rings[i]); /* get the real tail offset */ rx_rings[i].tail = vsi->rx_rings[i]->tail; /* this is to fake out the allocation routine * into thinking it has to realloc everything * but the recycling logic will let us re-use * the buffers allocated above */ rx_rings[i].next_to_use = 0; rx_rings[i].next_to_clean = 0; rx_rings[i].next_to_alloc = 0; /* do a struct copy */ *vsi->rx_rings[i] = rx_rings[i]; } kfree(rx_rings); rx_rings = NULL; } vsi->num_tx_desc = new_tx_count; vsi->num_rx_desc = new_rx_count; i40e_up(vsi); free_tx: /* error cleanup if the Rx allocations failed after getting Tx */ if (tx_rings) { for (i = 0; i < tx_alloc_queue_pairs; i++) { if (i40e_active_tx_ring_index(vsi, i)) i40e_free_tx_resources(vsi->tx_rings[i]); } kfree(tx_rings); tx_rings = NULL; } done: clear_bit(__I40E_CONFIG_BUSY, pf->state); return err; } /** * i40e_get_stats_count - return the stats count for a device * @netdev: the netdev to return the count for * * Returns the total number of statistics for this netdev. Note that even * though this is a function, it is required that the count for a specific * netdev must never change. Basing the count on static values such as the * maximum number of queues or the device type is ok. However, the API for * obtaining stats is *not* safe against changes based on non-static * values such as the *current* number of queues, or runtime flags. * * If a statistic is not always enabled, return it as part of the count * anyways, always return its string, and report its value as zero. **/ static int i40e_get_stats_count(struct net_device *netdev) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; int stats_len; if (vsi->type == I40E_VSI_MAIN && pf->hw.partition_id == 1) stats_len = I40E_PF_STATS_LEN; else stats_len = I40E_VSI_STATS_LEN; /* The number of stats reported for a given net_device must remain * constant throughout the life of that device. * * This is because the API for obtaining the size, strings, and stats * is spread out over three separate ethtool ioctls. There is no safe * way to lock the number of stats across these calls, so we must * assume that they will never change. * * Due to this, we report the maximum number of queues, even if not * every queue is currently configured. Since we always allocate * queues in pairs, we'll just use netdev->num_tx_queues * 2. This * works because the num_tx_queues is set at device creation and never * changes. */ stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; return stats_len; } static int i40e_get_sset_count(struct net_device *netdev, int sset) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; switch (sset) { case ETH_SS_TEST: return I40E_TEST_LEN; case ETH_SS_STATS: return i40e_get_stats_count(netdev); case ETH_SS_PRIV_FLAGS: return I40E_PRIV_FLAGS_STR_LEN + (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); default: return -EOPNOTSUPP; } } /** * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure * @tc: the TC statistics in VEB structure (veb->tc_stats) * @i: the index of traffic class in (veb->tc_stats) structure to copy * * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to * one dimensional structure i40e_cp_veb_tc_stats. * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC * statistics for the given TC. **/ static struct i40e_cp_veb_tc_stats i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) { struct i40e_cp_veb_tc_stats veb_tc = { .tc_rx_packets = tc->tc_rx_packets[i], .tc_rx_bytes = tc->tc_rx_bytes[i], .tc_tx_packets = tc->tc_tx_packets[i], .tc_tx_bytes = tc->tc_tx_bytes[i], }; return veb_tc; } /** * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure * @pf: the PF device structure * @i: the priority value to copy * * The PFC stats are found as arrays in pf->stats, which is not easy to pass * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure * of the PFC stats for the given priority. **/ static inline struct i40e_pfc_stats i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) { #define I40E_GET_PFC_STAT(stat, priority) \ .stat = pf->stats.stat[priority] struct i40e_pfc_stats pfc = { I40E_GET_PFC_STAT(priority_xon_rx, i), I40E_GET_PFC_STAT(priority_xoff_rx, i), I40E_GET_PFC_STAT(priority_xon_tx, i), I40E_GET_PFC_STAT(priority_xoff_tx, i), I40E_GET_PFC_STAT(priority_xon_2_xoff, i), }; return pfc; } /** * i40e_get_ethtool_stats - copy stat values into supplied buffer * @netdev: the netdev to collect stats for * @stats: ethtool stats command structure * @data: ethtool supplied buffer * * Copy the stats values for this netdev into the buffer. Expects data to be * pre-allocated to the size returned by i40e_get_stats_count.. Note that all * statistics must be copied in a static order, and the count must not change * for a given netdev. See i40e_get_stats_count for more details. * * If a statistic is not currently valid (such as a disabled queue), this * function reports its value as zero. **/ static void i40e_get_ethtool_stats(struct net_device *netdev, struct ethtool_stats *stats, u64 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_veb *veb = NULL; unsigned int i; bool veb_stats; u64 *p = data; i40e_update_stats(vsi); i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), i40e_gstrings_net_stats); i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); rcu_read_lock(); for (i = 0; i < netdev->num_tx_queues; i++) { i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); } rcu_read_unlock(); if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) goto check_data_pointer; veb = i40e_pf_get_main_veb(pf); veb_stats = veb && test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags); if (veb_stats) i40e_update_veb_stats(veb); /* If veb stats aren't enabled, pass NULL instead of the veb so that * we initialize stats to zero and update the data pointer * intelligently */ i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, i40e_gstrings_veb_stats); for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) if (veb_stats) { struct i40e_cp_veb_tc_stats veb_tc = i40e_get_veb_tc_stats(&veb->tc_stats, i); i40e_add_ethtool_stats(&data, &veb_tc, i40e_gstrings_veb_tc_stats); } else { i40e_add_ethtool_stats(&data, NULL, i40e_gstrings_veb_tc_stats); } i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); } check_data_pointer: WARN_ONCE(data - p != i40e_get_stats_count(netdev), "ethtool stats count mismatch!"); } /** * i40e_get_stat_strings - copy stat strings into supplied buffer * @netdev: the netdev to collect strings for * @data: supplied buffer to copy strings into * * Copy the strings related to stats for this netdev. Expects data to be * pre-allocated with the size reported by i40e_get_stats_count. Note that the * strings must be copied in a static order and the total count must not * change for a given netdev. See i40e_get_stats_count for more details. **/ static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; unsigned int i; u8 *p = data; i40e_add_stat_strings(&data, i40e_gstrings_net_stats); i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); for (i = 0; i < netdev->num_tx_queues; i++) { i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, "tx", i); i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, "rx", i); } if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) goto check_data_pointer; i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); i40e_add_stat_strings(&data, i40e_gstrings_stats); for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); check_data_pointer: WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, "stat strings count mismatch!"); } static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; unsigned int i; u8 *p = data; for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) ethtool_puts(&p, i40e_gstrings_priv_flags[i].flag_string); if (pf->hw.pf_id != 0) return; for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) ethtool_puts(&p, i40e_gl_gstrings_priv_flags[i].flag_string); } static void i40e_get_strings(struct net_device *netdev, u32 stringset, u8 *data) { switch (stringset) { case ETH_SS_TEST: memcpy(data, i40e_gstrings_test, I40E_TEST_LEN * ETH_GSTRING_LEN); break; case ETH_SS_STATS: i40e_get_stat_strings(netdev, data); break; case ETH_SS_PRIV_FLAGS: i40e_get_priv_flag_strings(netdev, data); break; default: break; } } static int i40e_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts_info *info) { struct i40e_pf *pf = i40e_netdev_to_pf(dev); /* only report HW timestamping if PTP is enabled */ if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags)) return ethtool_op_get_ts_info(dev, info); info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | SOF_TIMESTAMPING_TX_HARDWARE | SOF_TIMESTAMPING_RX_HARDWARE | SOF_TIMESTAMPING_RAW_HARDWARE; if (pf->ptp_clock) info->phc_index = ptp_clock_index(pf->ptp_clock); info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps)) info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); return 0; } static u64 i40e_link_test(struct net_device *netdev, u64 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; bool link_up = false; int status; netif_info(pf, hw, netdev, "link test\n"); status = i40e_get_link_status(&pf->hw, &link_up); if (status) { netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); *data = 1; return *data; } if (link_up) *data = 0; else *data = 1; return *data; } static u64 i40e_reg_test(struct net_device *netdev, u64 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; netif_info(pf, hw, netdev, "register test\n"); *data = i40e_diag_reg_test(&pf->hw); return *data; } static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; netif_info(pf, hw, netdev, "eeprom test\n"); *data = i40e_diag_eeprom_test(&pf->hw); /* forcebly clear the NVM Update state machine */ pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; return *data; } static u64 i40e_intr_test(struct net_device *netdev, u64 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; u16 swc_old = pf->sw_int_count; netif_info(pf, hw, netdev, "interrupt test\n"); wr32(&pf->hw, I40E_PFINT_DYN_CTL0, (I40E_PFINT_DYN_CTL0_INTENA_MASK | I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); usleep_range(1000, 2000); *data = (swc_old == pf->sw_int_count); return *data; } static inline bool i40e_active_vfs(struct i40e_pf *pf) { struct i40e_vf *vfs = pf->vf; int i; for (i = 0; i < pf->num_alloc_vfs; i++) if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) return true; return false; } static inline bool i40e_active_vmdqs(struct i40e_pf *pf) { return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); } static void i40e_diag_test(struct net_device *netdev, struct ethtool_test *eth_test, u64 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); bool if_running = netif_running(netdev); struct i40e_pf *pf = np->vsi->back; if (eth_test->flags == ETH_TEST_FL_OFFLINE) { /* Offline tests */ netif_info(pf, drv, netdev, "offline testing starting\n"); set_bit(__I40E_TESTING, pf->state); if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { dev_warn(&pf->pdev->dev, "Cannot start offline testing when PF is in reset state.\n"); goto skip_ol_tests; } if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { dev_warn(&pf->pdev->dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagn goto skip_ol_tests; } /* If the device is online then take it offline */ if (if_running) /* indicate we're in test mode */ i40e_close(netdev); else /* This reset does not affect link - if it is * changed to a type of reset that does affect * link then the following link test would have * to be moved to before the reset */ i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) eth_test->flags |= ETH_TEST_FL_FAILED; if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) eth_test->flags |= ETH_TEST_FL_FAILED; if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) eth_test->flags |= ETH_TEST_FL_FAILED; /* run reg test last, a reset is required after it */ if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) eth_test->flags |= ETH_TEST_FL_FAILED; clear_bit(__I40E_TESTING, pf->state); i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); if (if_running) i40e_open(netdev); } else { /* Online tests */ netif_info(pf, drv, netdev, "online testing starting\n"); if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) eth_test->flags |= ETH_TEST_FL_FAILED; /* Offline only tests, not run in online; pass by default */ data[I40E_ETH_TEST_REG] = 0; data[I40E_ETH_TEST_EEPROM] = 0; data[I40E_ETH_TEST_INTR] = 0; } netif_info(pf, drv, netdev, "testing finished\n"); return; skip_ol_tests: data[I40E_ETH_TEST_REG] = 1; data[I40E_ETH_TEST_EEPROM] = 1; data[I40E_ETH_TEST_INTR] = 1; data[I40E_ETH_TEST_LINK] = 1; eth_test->flags |= ETH_TEST_FL_FAILED; clear_bit(__I40E_TESTING, pf->state); netif_info(pf, drv, netdev, "testing failed\n"); } static void i40e_get_link_ext_stats(struct net_device *netdev, struct ethtool_link_ext_stats *stats) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; stats->link_down_events = pf->link_down_events; } static void i40e_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; u16 wol_nvm_bits; /* NVM bit on means WoL disabled for the port */ i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { wol->supported = 0; wol->wolopts = 0; } else { wol->supported = WAKE_MAGIC; wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); } } /** * i40e_set_wol - set the WakeOnLAN configuration * @netdev: the netdev in question * @wol: the ethtool WoL setting data **/ static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_vsi *vsi = np->vsi; struct i40e_hw *hw = &pf->hw; u16 wol_nvm_bits; /* WoL not supported if this isn't the controlling PF on the port */ if (hw->partition_id != 1) { i40e_partition_setting_complaint(pf); return -EOPNOTSUPP; } if (vsi->type != I40E_VSI_MAIN) return -EOPNOTSUPP; /* NVM bit on means WoL disabled for the port */ i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); if (BIT(hw->port) & wol_nvm_bits) return -EOPNOTSUPP; /* only magic packet is supported */ if (wol->wolopts & ~WAKE_MAGIC) return -EOPNOTSUPP; /* is this a new value? */ if (pf->wol_en != !!wol->wolopts) { pf->wol_en = !!wol->wolopts; device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); } return 0; } static int i40e_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; struct i40e_hw *hw = &pf->hw; int blink_freq = 2; u16 temp_status; int ret = 0; switch (state) { case ETHTOOL_ID_ACTIVE: if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { pf->led_status = i40e_led_get(hw); } else { if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL); ret = i40e_led_get_phy(hw, &temp_status, &pf->phy_led_val); pf->led_status = temp_status; } return blink_freq; case ETHTOOL_ID_ON: if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) i40e_led_set(hw, 0xf, false); else ret = i40e_led_set_phy(hw, true, pf->led_status, 0); break; case ETHTOOL_ID_OFF: if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) i40e_led_set(hw, 0x0, false); else ret = i40e_led_set_phy(hw, false, pf->led_status, 0); break; case ETHTOOL_ID_INACTIVE: if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { i40e_led_set(hw, pf->led_status, false); } else { ret = i40e_led_set_phy(hw, false, pf->led_status, (pf->phy_led_val | I40E_PHY_LED_MODE_ORIG)); if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) i40e_aq_set_phy_debug(hw, 0, NULL); } break; default: break; } if (ret) return -ENOENT; else return 0; } /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also * 125us (8000 interrupts per second) == ITR(62) */ /** * __i40e_get_coalesce - get per-queue coalesce settings * @netdev: the netdev to check * @ec: ethtool coalesce data structure * @queue: which queue to pick * * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs * are per queue. If queue is <0 then we default to queue 0 as the * representative value. **/ static int __i40e_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, int queue) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_ring *rx_ring, *tx_ring; struct i40e_vsi *vsi = np->vsi; ec->tx_max_coalesced_frames_irq = vsi->work_limit; /* rx and tx usecs has per queue value. If user doesn't specify the * queue, return queue 0's value to represent. */ if (queue < 0) queue = 0; else if (queue >= vsi->num_queue_pairs) return -EINVAL; rx_ring = vsi->rx_rings[queue]; tx_ring = vsi->tx_rings[queue]; if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) ec->use_adaptive_rx_coalesce = 1; if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) ec->use_adaptive_tx_coalesce = 1; ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; /* we use the _usecs_high to store/set the interrupt rate limit * that the hardware supports, that almost but not quite * fits the original intent of the ethtool variable, * the rx_coalesce_usecs_high limits total interrupts * per second from both tx/rx sources. */ ec->rx_coalesce_usecs_high = vsi->int_rate_limit; ec->tx_coalesce_usecs_high = vsi->int_rate_limit; return 0; } /** * i40e_get_coalesce - get a netdev's coalesce settings * @netdev: the netdev to check * @ec: ethtool coalesce data structure * @kernel_coal: ethtool CQE mode setting structure * @extack: extack for reporting error messages * * Gets the coalesce settings for a particular netdev. Note that if user has * modified per-queue settings, this only guarantees to represent queue 0. See * __i40e_get_coalesce for more details. **/ static int i40e_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, struct kernel_ethtool_coalesce *kernel_coal, struct netlink_ext_ack *extack) { return __i40e_get_coalesce(netdev, ec, -1); } /** * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue * @netdev: netdev structure * @ec: ethtool's coalesce settings * @queue: the particular queue to read * * Will read a specific queue's coalesce settings **/ static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, struct ethtool_coalesce *ec) { return __i40e_get_coalesce(netdev, ec, queue); } /** * i40e_set_itr_per_queue - set ITR values for specific queue * @vsi: the VSI to set values for * @ec: coalesce settings from ethtool * @queue: the queue to modify * * Change the ITR settings for a specific queue. **/ static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, struct ethtool_coalesce *ec, int queue) { struct i40e_ring *rx_ring = vsi->rx_rings[queue]; struct i40e_ring *tx_ring = vsi->tx_rings[queue]; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; struct i40e_q_vector *q_vector; u16 intrl; intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); if (ec->use_adaptive_rx_coalesce) rx_ring->itr_setting |= I40E_ITR_DYNAMIC; else rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; if (ec->use_adaptive_tx_coalesce) tx_ring->itr_setting |= I40E_ITR_DYNAMIC; else tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; q_vector = rx_ring->q_vector; q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); q_vector = tx_ring->q_vector; q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); /* The interrupt handler itself will take care of programming * the Tx and Rx ITR values based on the values we have entered * into the q_vector, no need to write the values now. */ wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); i40e_flush(hw); } /** * __i40e_set_coalesce - set coalesce settings for particular queue * @netdev: the netdev to change * @ec: ethtool coalesce settings * @queue: the queue to change * * Sets the coalesce settings for a particular queue. **/ static int __i40e_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, int queue) { struct i40e_netdev_priv *np = netdev_priv(netdev); u16 intrl_reg, cur_rx_itr, cur_tx_itr; struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; int i; if (ec->tx_max_coalesced_frames_irq) vsi->work_limit = ec->tx_max_coalesced_frames_irq; if (queue < 0) { cur_rx_itr = vsi->rx_rings[0]->itr_setting; cur_tx_itr = vsi->tx_rings[0]->itr_setting; } else if (queue < vsi->num_queue_pairs) { cur_rx_itr = vsi->rx_rings[queue]->itr_setting; cur_tx_itr = vsi->tx_rings[queue]->itr_setting; } else { netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", vsi->num_queue_pairs - 1); return -EINVAL; } cur_tx_itr &= ~I40E_ITR_DYNAMIC; cur_rx_itr &= ~I40E_ITR_DYNAMIC; /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); return -EINVAL; } if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", INTRL_REG_TO_USEC(I40E_MAX_INTRL)); return -EINVAL; } if (ec->rx_coalesce_usecs != cur_rx_itr && ec->use_adaptive_rx_coalesce) { netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is ena return -EINVAL; } if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); return -EINVAL; } if (ec->tx_coalesce_usecs != cur_tx_itr && ec->use_adaptive_tx_coalesce) { netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is ena return -EINVAL; } if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); return -EINVAL; } if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) ec->rx_coalesce_usecs = I40E_MIN_ITR; if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) ec->tx_coalesce_usecs = I40E_MIN_ITR; intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", vsi->int_rate_limit); } /* rx and tx usecs has per queue value. If user doesn't specify the * queue, apply to all queues. */ if (queue < 0) { for (i = 0; i < vsi->num_queue_pairs; i++) i40e_set_itr_per_queue(vsi, ec, i); } else { i40e_set_itr_per_queue(vsi, ec, queue); } return 0; } /** * i40e_set_coalesce - set coalesce settings for every queue on the netdev * @netdev: the netdev to change * @ec: ethtool coalesce settings * @kernel_coal: ethtool CQE mode setting structure * @extack: extack for reporting error messages * * This will set each queue to the same coalesce settings. **/ static int i40e_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, struct kernel_ethtool_coalesce *kernel_coal, struct netlink_ext_ack *extack) { return __i40e_set_coalesce(netdev, ec, -1); } /** * i40e_set_per_queue_coalesce - set specific queue's coalesce settings * @netdev: the netdev to change * @ec: ethtool's coalesce settings * @queue: the queue to change * * Sets the specified queue's coalesce settings. **/ static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, struct ethtool_coalesce *ec) { return __i40e_set_coalesce(netdev, ec, queue); } static int i40e_get_rxfh_fields(struct net_device *netdev, struct ethtool_rxfh_fields *cmd) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; u8 flow_pctype = 0; u64 i_set = 0; cmd->data = 0; switch (cmd->flow_type) { case TCP_V4_FLOW: flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; break; case UDP_V4_FLOW: flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; break; case TCP_V6_FLOW: flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; break; case UDP_V6_FLOW: flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; break; case SCTP_V4_FLOW: case AH_ESP_V4_FLOW: case AH_V4_FLOW: case ESP_V4_FLOW: case IPV4_FLOW: case SCTP_V6_FLOW: case AH_ESP_V6_FLOW: case AH_V6_FLOW: case ESP_V6_FLOW: case IPV6_FLOW: /* Default is src/dest for IP, no matter the L4 hashing */ cmd->data |= RXH_IP_SRC | RXH_IP_DST; break; default: return -EINVAL; } /* Read flow based hash input set register */ if (flow_pctype) { i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype)) | ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype)) << 32); } /* Process bits of hash input set */ if (i_set) { if (i_set & I40E_L4_SRC_MASK) cmd->data |= RXH_L4_B_0_1; if (i_set & I40E_L4_DST_MASK) cmd->data |= RXH_L4_B_2_3; if (cmd->flow_type == TCP_V4_FLOW || cmd->flow_type == UDP_V4_FLOW) { if (hw->mac.type == I40E_MAC_X722) { if (i_set & I40E_X722_L3_SRC_MASK) cmd->data |= RXH_IP_SRC; if (i_set & I40E_X722_L3_DST_MASK) cmd->data |= RXH_IP_DST; } else { if (i_set & I40E_L3_SRC_MASK) cmd->data |= RXH_IP_SRC; if (i_set & I40E_L3_DST_MASK) cmd->data |= RXH_IP_DST; } } else if (cmd->flow_type == TCP_V6_FLOW || cmd->flow_type == UDP_V6_FLOW) { if (i_set & I40E_L3_V6_SRC_MASK) cmd->data |= RXH_IP_SRC; if (i_set & I40E_L3_V6_DST_MASK) cmd->data |= RXH_IP_DST; } } return 0; } /** * i40e_check_mask - Check whether a mask field is set * @mask: the full mask value * @field: mask of the field to check * * If the given mask is fully set, return positive value. If the mask for the * field is fully unset, return zero. Otherwise return a negative error code. **/ static int i40e_check_mask(u64 mask, u64 field) { u64 value = mask & field; if (value == field) return 1; else if (!value) return 0; else return -1; } /** * i40e_parse_rx_flow_user_data - Deconstruct user-defined data * @fsp: pointer to rx flow specification * @data: pointer to userdef data structure for storage * * Read the user-defined data and deconstruct the value into a structure. No * other code should read the user-defined data, so as to ensure that every * place consistently reads the value correctly. * * The user-defined field is a 64bit Big Endian format value, which we * deconstruct by reading bits or bit fields from it. Single bit flags shall * be defined starting from the highest bits, while small bit field values * shall be defined starting from the lowest bits. * * Returns 0 if the data is valid, and non-zero if the userdef data is invalid * and the filter should be rejected. The data structure will always be * modified even if FLOW_EXT is not set. * **/ static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, struct i40e_rx_flow_userdef *data) { u64 value, mask; int valid; /* Zero memory first so it's always consistent. */ memset(data, 0, sizeof(*data)); if (!(fsp->flow_type & FLOW_EXT)) return 0; value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); if (valid < 0) { return -EINVAL; } else if (valid) { data->flex_word = value & I40E_USERDEF_FLEX_WORD; data->flex_offset = FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value); data->flex_filter = true; } return 0; } /** * i40e_fill_rx_flow_user_data - Fill in user-defined data field * @fsp: pointer to rx_flow specification * @data: pointer to return userdef data * * Reads the userdef data structure and properly fills in the user defined * fields of the rx_flow_spec. **/ static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, struct i40e_rx_flow_userdef *data) { u64 value = 0, mask = 0; if (data->flex_filter) { value |= data->flex_word; value |= (u64)data->flex_offset << 16; mask |= I40E_USERDEF_FLEX_FILTER; } if (value || mask) fsp->flow_type |= FLOW_EXT; *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); } /** * i40e_get_ethtool_fdir_all - Populates the rule count of a command * @pf: Pointer to the physical function struct * @cmd: The command to get or set Rx flow classification rules * @rule_locs: Array of used rule locations * * This function populates both the total and actual rule count of * the ethtool flow classification command * * Returns 0 on success or -EMSGSIZE if entry not found **/ static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, struct ethtool_rxnfc *cmd, u32 *rule_locs) { struct i40e_fdir_filter *rule; struct hlist_node *node2; int cnt = 0; /* report total rule count */ cmd->data = i40e_get_fd_cnt_all(pf); hlist_for_each_entry_safe(rule, node2, &pf->fdir_filter_list, fdir_node) { if (cnt == cmd->rule_cnt) return -EMSGSIZE; rule_locs[cnt] = rule->fd_id; cnt++; } cmd->rule_cnt = cnt; return 0; } /** * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow * @pf: Pointer to the physical function struct * @cmd: The command to get or set Rx flow classification rules * * This function looks up a filter based on the Rx flow classification * command and fills the flow spec info for it if found * * Returns 0 on success or -EINVAL if filter not found **/ static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) { struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; struct i40e_rx_flow_userdef userdef = {0}; struct i40e_fdir_filter *rule = NULL; struct hlist_node *node2; struct i40e_vsi *vsi; u64 input_set; u16 index; hlist_for_each_entry_safe(rule, node2, &pf->fdir_filter_list, fdir_node) { if (fsp->location <= rule->fd_id) break; } if (!rule || fsp->location != rule->fd_id) return -EINVAL; fsp->flow_type = rule->flow_type; if (fsp->flow_type == IP_USER_FLOW) { fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; fsp->h_u.usr_ip4_spec.proto = 0; fsp->m_u.usr_ip4_spec.proto = 0; } if (fsp->flow_type == IPV6_USER_FLOW || fsp->flow_type == UDP_V6_FLOW || fsp->flow_type == TCP_V6_FLOW || fsp->flow_type == SCTP_V6_FLOW) { /* Reverse the src and dest notion, since the HW views them * from Tx perspective where as the user expects it from * Rx filter view. */ fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, sizeof(__be32) * 4); memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, sizeof(__be32) * 4); } else { /* Reverse the src and dest notion, since the HW views them * from Tx perspective where as the user expects it from * Rx filter view. */ fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; } switch (rule->flow_type) { case SCTP_V4_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP; break; case TCP_V4_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; break; case UDP_V4_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; break; case SCTP_V6_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP; break; case TCP_V6_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; break; case UDP_V6_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; break; case IP_USER_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER; break; case IPV6_USER_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER; break; default: /* If we have stored a filter with a flow type not listed here * it is almost certainly a driver bug. WARN(), and then * assign the input_set as if all fields are enabled to avoid * reading unassigned memory. */ WARN(1, "Missing input set index for flow_type %d\n", rule->flow_type); input_set = 0xFFFFFFFFFFFFFFFFULL; goto no_input_set; } input_set = i40e_read_fd_input_set(pf, index); no_input_set: if (input_set & I40E_L3_V6_SRC_MASK) { fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); } if (input_set & I40E_L3_V6_DST_MASK) { fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); } if (input_set & I40E_L3_SRC_MASK) fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); if (input_set & I40E_L3_DST_MASK) fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); if (input_set & I40E_L4_SRC_MASK) fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); if (input_set & I40E_L4_DST_MASK) fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) fsp->ring_cookie = RX_CLS_FLOW_DISC; else fsp->ring_cookie = rule->q_index; if (rule->vlan_tag) { fsp->h_ext.vlan_etype = rule->vlan_etype; fsp->m_ext.vlan_etype = htons(0xFFFF); fsp->h_ext.vlan_tci = rule->vlan_tag; fsp->m_ext.vlan_tci = htons(0xFFFF); fsp->flow_type |= FLOW_EXT; } vsi = i40e_pf_get_main_vsi(pf); if (rule->dest_vsi != vsi->id) { vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); if (vsi && vsi->type == I40E_VSI_SRIOV) { /* VFs are zero-indexed by the driver, but ethtool * expects them to be one-indexed, so add one here */ u64 ring_vf = vsi->vf_id + 1; ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; fsp->ring_cookie |= ring_vf; } } if (rule->flex_filter) { userdef.flex_filter = true; userdef.flex_word = be16_to_cpu(rule->flex_word); userdef.flex_offset = rule->flex_offset; } i40e_fill_rx_flow_user_data(fsp, &userdef); return 0; } /** * i40e_get_rxnfc - command to get RX flow classification rules * @netdev: network interface device structure * @cmd: ethtool rxnfc command * @rule_locs: pointer to store rule data * * Returns Success if the command is supported. **/ static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, u32 *rule_locs) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; int ret = -EOPNOTSUPP; switch (cmd->cmd) { case ETHTOOL_GRXRINGS: cmd->data = vsi->rss_size; ret = 0; break; case ETHTOOL_GRXCLSRLCNT: cmd->rule_cnt = pf->fdir_pf_active_filters; /* report total rule count */ cmd->data = i40e_get_fd_cnt_all(pf); ret = 0; break; case ETHTOOL_GRXCLSRULE: ret = i40e_get_ethtool_fdir_entry(pf, cmd); break; case ETHTOOL_GRXCLSRLALL: ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); break; default: break; } return ret; } /** * i40e_get_rss_hash_bits - Read RSS Hash bits from register * @hw: hw structure * @nfc: pointer to user request * @i_setc: bits currently set * * Returns value of bits to be set per user request **/ static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, const struct ethtool_rxfh_fields *nfc, u64 i_setc) { u64 i_set = i_setc; u64 src_l3 = 0, dst_l3 = 0; if (nfc->data & RXH_L4_B_0_1) i_set |= I40E_L4_SRC_MASK; else i_set &= ~I40E_L4_SRC_MASK; if (nfc->data & RXH_L4_B_2_3) i_set |= I40E_L4_DST_MASK; else i_set &= ~I40E_L4_DST_MASK; if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { src_l3 = I40E_L3_V6_SRC_MASK; dst_l3 = I40E_L3_V6_DST_MASK; } else if (nfc->flow_type == TCP_V4_FLOW || nfc->flow_type == UDP_V4_FLOW) { if (hw->mac.type == I40E_MAC_X722) { src_l3 = I40E_X722_L3_SRC_MASK; dst_l3 = I40E_X722_L3_DST_MASK; } else { src_l3 = I40E_L3_SRC_MASK; dst_l3 = I40E_L3_DST_MASK; } } else { /* Any other flow type are not supported here */ return i_set; } if (nfc->data & RXH_IP_SRC) i_set |= src_l3; else i_set &= ~src_l3; if (nfc->data & RXH_IP_DST) i_set |= dst_l3; else i_set &= ~dst_l3; return i_set; } #define FLOW_PCTYPES_SIZE 64 static int i40e_set_rxfh_fields(struct net_device *netdev, const struct ethtool_rxfh_fields *nfc, struct netlink_ext_ack *extack) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); u64 i_set, i_setc; bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { dev_err(&pf->pdev->dev, "Change of RSS hash input set is not supported when MFP mode is enabled\n"); return -EOPNOTSUPP; } /* 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: set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, flow_pctypes); break; case TCP_V6_FLOW: set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, flow_pctypes); break; case UDP_V4_FLOW: set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) { set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, flow_pctypes); set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, flow_pctypes); } hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); break; case UDP_V6_FLOW: set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) { set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, flow_pctypes); set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, flow_pctypes); } hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); break; case AH_ESP_V4_FLOW: case AH_V4_FLOW: case ESP_V4_FLOW: case SCTP_V4_FLOW: if ((nfc->data & RXH_L4_B_0_1) || (nfc->data & RXH_L4_B_2_3)) return -EINVAL; hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER); break; case AH_ESP_V6_FLOW: case AH_V6_FLOW: case ESP_V6_FLOW: case SCTP_V6_FLOW: if ((nfc->data & RXH_L4_B_0_1) || (nfc->data & RXH_L4_B_2_3)) return -EINVAL; hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER); break; case IPV4_FLOW: hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) | BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); break; case IPV6_FLOW: hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER) | BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); break; default: return -EINVAL; } if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { u8 flow_id; for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), (u32)i_set); i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), (u32)(i_set >> 32)); hena |= BIT_ULL(flow_id); } } i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); i40e_flush(hw); return 0; } /** * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry * @vsi: Pointer to the targeted VSI * @input: The filter to update or NULL to indicate deletion * @sw_idx: Software index to the filter * @cmd: The command to get or set Rx flow classification rules * * This function updates (or deletes) a Flow Director entry from * the hlist of the corresponding PF * * Returns 0 on success **/ static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, struct i40e_fdir_filter *input, u16 sw_idx, struct ethtool_rxnfc *cmd) { struct i40e_fdir_filter *rule, *parent; struct i40e_pf *pf = vsi->back; struct hlist_node *node2; int err = -EINVAL; parent = NULL; rule = NULL; hlist_for_each_entry_safe(rule, node2, &pf->fdir_filter_list, fdir_node) { /* hash found, or no matching entry */ if (rule->fd_id >= sw_idx) break; parent = rule; } /* if there is an old rule occupying our place remove it */ if (rule && (rule->fd_id == sw_idx)) { /* Remove this rule, since we're either deleting it, or * replacing it. */ err = i40e_add_del_fdir(vsi, rule, false); hlist_del(&rule->fdir_node); kfree(rule); pf->fdir_pf_active_filters--; } /* If we weren't given an input, this is a delete, so just return the * error code indicating if there was an entry at the requested slot */ if (!input) return err; /* Otherwise, install the new rule as requested */ INIT_HLIST_NODE(&input->fdir_node); /* add filter to the list */ if (parent) hlist_add_behind(&input->fdir_node, &parent->fdir_node); else hlist_add_head(&input->fdir_node, &pf->fdir_filter_list); /* update counts */ pf->fdir_pf_active_filters++; return 0; } /** * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table * @pf: pointer to PF structure * * This function searches the list of filters and determines which FLX_PIT * entries are still required. It will prune any entries which are no longer * in use after the deletion. **/ static void i40e_prune_flex_pit_list(struct i40e_pf *pf) { struct i40e_flex_pit *entry, *tmp; struct i40e_fdir_filter *rule; /* First, we'll check the l3 table */ list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { bool found = false; hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { if (rule->flow_type != IP_USER_FLOW) continue; if (rule->flex_filter && rule->flex_offset == entry->src_offset) { found = true; break; } } /* If we didn't find the filter, then we can prune this entry * from the list. */ if (!found) { list_del(&entry->list); kfree(entry); } } /* Followed by the L4 table */ list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { bool found = false; hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { /* Skip this filter if it's L3, since we already * checked those in the above loop */ if (rule->flow_type == IP_USER_FLOW) continue; if (rule->flex_filter && rule->flex_offset == entry->src_offset) { found = true; break; } } /* If we didn't find the filter, then we can prune this entry * from the list. */ if (!found) { list_del(&entry->list); kfree(entry); } } } /** * i40e_del_fdir_entry - Deletes a Flow Director filter entry * @vsi: Pointer to the targeted VSI * @cmd: The command to get or set Rx flow classification rules * * The function removes a Flow Director filter entry from the * hlist of the corresponding PF * * Returns 0 on success */ static int i40e_del_fdir_entry(struct i40e_vsi *vsi, struct ethtool_rxnfc *cmd) { struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; struct i40e_pf *pf = vsi->back; int ret = 0; if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) return -EBUSY; if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) return -EBUSY; ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); i40e_prune_flex_pit_list(pf); i40e_fdir_check_and_reenable(pf); return ret; } /** * i40e_unused_pit_index - Find an unused PIT index for given list * @pf: the PF data structure * * Find the first unused flexible PIT index entry. We search both the L3 and * L4 flexible PIT lists so that the returned index is unique and unused by * either currently programmed L3 or L4 filters. We use a bit field as storage * to track which indexes are already used. **/ static u8 i40e_unused_pit_index(struct i40e_pf *pf) { unsigned long available_index = 0xFF; struct i40e_flex_pit *entry; /* We need to make sure that the new index isn't in use by either L3 * or L4 filters so that IP_USER_FLOW filters can program both L3 and * L4 to use the same index. */ list_for_each_entry(entry, &pf->l4_flex_pit_list, list) clear_bit(entry->pit_index, &available_index); list_for_each_entry(entry, &pf->l3_flex_pit_list, list) clear_bit(entry->pit_index, &available_index); return find_first_bit(&available_index, 8); } /** * i40e_find_flex_offset - Find an existing flex src_offset * @flex_pit_list: L3 or L4 flex PIT list * @src_offset: new src_offset to find * * Searches the flex_pit_list for an existing offset. If no offset is * currently programmed, then this will return an ERR_PTR if there is no space * to add a new offset, otherwise it returns NULL. **/ static struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, u16 src_offset) { struct i40e_flex_pit *entry; int size = 0; /* Search for the src_offset first. If we find a matching entry * already programmed, we can simply re-use it. */ list_for_each_entry(entry, flex_pit_list, list) { size++; if (entry->src_offset == src_offset) return entry; } /* If we haven't found an entry yet, then the provided src offset has * not yet been programmed. We will program the src offset later on, * but we need to indicate whether there is enough space to do so * here. We'll make use of ERR_PTR for this purpose. */ if (size >= I40E_FLEX_PIT_TABLE_SIZE) return ERR_PTR(-ENOSPC); return NULL; } /** * i40e_add_flex_offset - Add src_offset to flex PIT table list * @flex_pit_list: L3 or L4 flex PIT list * @src_offset: new src_offset to add * @pit_index: the PIT index to program * * This function programs the new src_offset to the list. It is expected that * i40e_find_flex_offset has already been tried and returned NULL, indicating * that this offset is not programmed, and that the list has enough space to * store another offset. * * Returns 0 on success, and negative value on error. **/ static int i40e_add_flex_offset(struct list_head *flex_pit_list, u16 src_offset, u8 pit_index) { struct i40e_flex_pit *new_pit, *entry; new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); if (!new_pit) return -ENOMEM; new_pit->src_offset = src_offset; new_pit->pit_index = pit_index; /* We need to insert this item such that the list is sorted by * src_offset in ascending order. */ list_for_each_entry(entry, flex_pit_list, list) { if (new_pit->src_offset < entry->src_offset) { list_add_tail(&new_pit->list, &entry->list); return 0; } /* If we found an entry with our offset already programmed we * can simply return here, after freeing the memory. However, * if the pit_index does not match we need to report an error. */ if (new_pit->src_offset == entry->src_offset) { int err = 0; /* If the PIT index is not the same we can't re-use * the entry, so we must report an error. */ if (new_pit->pit_index != entry->pit_index) err = -EINVAL; kfree(new_pit); return err; } } /* If we reached here, then we haven't yet added the item. This means * that we should add the item at the end of the list. */ list_add_tail(&new_pit->list, flex_pit_list); return 0; } /** * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table * @pf: Pointer to the PF structure * @flex_pit_list: list of flexible src offsets in use * @flex_pit_start: index to first entry for this section of the table * * In order to handle flexible data, the hardware uses a table of values * called the FLX_PIT table. This table is used to indicate which sections of * the input correspond to what PIT index values. Unfortunately, hardware is * very restrictive about programming this table. Entries must be ordered by * src_offset in ascending order, without duplicates. Additionally, unused * entries must be set to the unused index value, and must have valid size and * length according to the src_offset ordering. * * This function will reprogram the FLX_PIT register from a book-keeping * structure that we guarantee is already ordered correctly, and has no more * than 3 entries. * * To make things easier, we only support flexible values of one word length, * rather than allowing variable length flexible values. **/ static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, struct list_head *flex_pit_list, int flex_pit_start) { struct i40e_flex_pit *entry = NULL; u16 last_offset = 0; int i = 0, j = 0; /* First, loop over the list of flex PIT entries, and reprogram the * registers. */ list_for_each_entry(entry, flex_pit_list, list) { /* We have to be careful when programming values for the * largest SRC_OFFSET value. It is possible that adding * additional empty values at the end would overflow the space * for the SRC_OFFSET in the FLX_PIT register. To avoid this, * we check here and add the empty values prior to adding the * largest value. * * To determine this, we will use a loop from i+1 to 3, which * will determine whether the unused entries would have valid * SRC_OFFSET. Note that there cannot be extra entries past * this value, because the only valid values would have been * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not * have been added to the list in the first place. */ for (j = i + 1; j < 3; j++) { u16 offset = entry->src_offset + j; int index = flex_pit_start + i; u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 1, offset - 3); if (offset > I40E_MAX_FLEX_SRC_OFFSET) { i40e_write_rx_ctl(&pf->hw, I40E_PRTQF_FLX_PIT(index), value); i++; } } /* Now, we can program the actual value into the table */ i40e_write_rx_ctl(&pf->hw, I40E_PRTQF_FLX_PIT(flex_pit_start + i), I40E_FLEX_PREP_VAL(entry->pit_index + 50, 1, entry->src_offset)); i++; } /* In order to program the last entries in the table, we need to * determine the valid offset. If the list is empty, we'll just start * with 0. Otherwise, we'll start with the last item offset and add 1. * This ensures that all entries have valid sizes. If we don't do this * correctly, the hardware will disable flexible field parsing. */ if (!list_empty(flex_pit_list)) last_offset = list_prev_entry(entry, list)->src_offset + 1; for (; i < 3; i++, last_offset++) { i40e_write_rx_ctl(&pf->hw, I40E_PRTQF_FLX_PIT(flex_pit_start + i), I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 1, last_offset)); } } /** * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change * @pf: pointer to the PF structure * * This function reprograms both the L3 and L4 FLX_PIT tables. See the * internal helper function for implementation details. **/ static void i40e_reprogram_flex_pit(struct i40e_pf *pf) { __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, I40E_FLEX_PIT_IDX_START_L3); __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, I40E_FLEX_PIT_IDX_START_L4); /* We also need to program the L3 and L4 GLQF ORT register */ i40e_write_rx_ctl(&pf->hw, I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3, 1)); i40e_write_rx_ctl(&pf->hw, I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 3, 1)); } /** * i40e_flow_str - Converts a flow_type into a human readable string * @fsp: the flow specification * * Currently only flow types we support are included here, and the string * value attempts to match what ethtool would use to configure this flow type. **/ static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) { switch (fsp->flow_type & ~FLOW_EXT) { case TCP_V4_FLOW: return "tcp4"; case UDP_V4_FLOW: return "udp4"; case SCTP_V4_FLOW: return "sctp4"; case IP_USER_FLOW: return "ip4"; case TCP_V6_FLOW: return "tcp6"; case UDP_V6_FLOW: return "udp6"; case SCTP_V6_FLOW: return "sctp6"; case IPV6_USER_FLOW: return "ip6"; default: return "unknown"; } } /** * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index * @pit_index: PIT index to convert * * Returns the mask for a given PIT index. Will return 0 if the pit_index is * of range. **/ static u64 i40e_pit_index_to_mask(int pit_index) { switch (pit_index) { case 0: return I40E_FLEX_50_MASK; case 1: return I40E_FLEX_51_MASK; case 2: return I40E_FLEX_52_MASK; case 3: return I40E_FLEX_53_MASK; case 4: return I40E_FLEX_54_MASK; case 5: return I40E_FLEX_55_MASK; case 6: return I40E_FLEX_56_MASK; case 7: return I40E_FLEX_57_MASK; default: return 0; } } /** * i40e_print_input_set - Show changes between two input sets * @vsi: the vsi being configured * @old: the old input set * @new: the new input set * * Print the difference between old and new input sets by showing which series * of words are toggled on or off. Only displays the bits we actually support * changing. **/ static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) { struct i40e_pf *pf = vsi->back; bool old_value, new_value; int i; old_value = !!(old & I40E_L3_SRC_MASK); new_value = !!(new & I40E_L3_SRC_MASK); if (old_value != new_value) netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", old_value ? "ON" : "OFF", new_value ? "ON" : "OFF"); old_value = !!(old & I40E_L3_DST_MASK); new_value = !!(new & I40E_L3_DST_MASK); if (old_value != new_value) netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", old_value ? "ON" : "OFF", new_value ? "ON" : "OFF"); old_value = !!(old & I40E_L4_SRC_MASK); new_value = !!(new & I40E_L4_SRC_MASK); if (old_value != new_value) netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", old_value ? "ON" : "OFF", new_value ? "ON" : "OFF"); old_value = !!(old & I40E_L4_DST_MASK); new_value = !!(new & I40E_L4_DST_MASK); if (old_value != new_value) netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", old_value ? "ON" : "OFF", new_value ? "ON" : "OFF"); old_value = !!(old & I40E_VERIFY_TAG_MASK); new_value = !!(new & I40E_VERIFY_TAG_MASK); if (old_value != new_value) netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", old_value ? "ON" : "OFF", new_value ? "ON" : "OFF"); /* Show change of flexible filter entries */ for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { u64 flex_mask = i40e_pit_index_to_mask(i); old_value = !!(old & flex_mask); new_value = !!(new & flex_mask); if (old_value != new_value) netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", i, old_value ? "ON" : "OFF", new_value ? "ON" : "OFF"); } netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", old); netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", new); } /** * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid * @vsi: pointer to the targeted VSI * @fsp: pointer to Rx flow specification * @userdef: userdefined data from flow specification * * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support * for partial matches exists with a few limitations. First, hardware only * supports masking by word boundary (2 bytes) and not per individual bit. * Second, hardware is limited to using one mask for a flow type and cannot * use a separate mask for each filter. * * To support these limitations, if we already have a configured filter for * the specified type, this function enforces that new filters of the type * match the configured input set. Otherwise, if we do not have a filter of * the specified type, we allow the input set to be updated to match the * desired filter. * * To help ensure that administrators understand why filters weren't displayed * as supported, we print a diagnostic message displaying how the input set * would change and warning to delete the preexisting filters if required. * * Returns 0 on successful input set match, and a negative return code on * failure. **/ static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, struct ethtool_rx_flow_spec *fsp, struct i40e_rx_flow_userdef *userdef) { static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff)}; struct ethtool_tcpip6_spec *tcp_ip6_spec; struct ethtool_usrip6_spec *usr_ip6_spec; struct ethtool_tcpip4_spec *tcp_ip4_spec; struct ethtool_usrip4_spec *usr_ip4_spec; struct i40e_pf *pf = vsi->back; u64 current_mask, new_mask; bool new_flex_offset = false; bool flex_l3 = false; u16 *fdir_filter_count; u16 index, src_offset = 0; u8 pit_index = 0; int err; switch (fsp->flow_type & ~FLOW_EXT) { case SCTP_V4_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP; fdir_filter_count = &pf->fd_sctp4_filter_cnt; break; case TCP_V4_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; fdir_filter_count = &pf->fd_tcp4_filter_cnt; break; case UDP_V4_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; fdir_filter_count = &pf->fd_udp4_filter_cnt; break; case SCTP_V6_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP; fdir_filter_count = &pf->fd_sctp6_filter_cnt; break; case TCP_V6_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; fdir_filter_count = &pf->fd_tcp6_filter_cnt; break; case UDP_V6_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; fdir_filter_count = &pf->fd_udp6_filter_cnt; break; case IP_USER_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER; fdir_filter_count = &pf->fd_ip4_filter_cnt; flex_l3 = true; break; case IPV6_USER_FLOW: index = LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER; fdir_filter_count = &pf->fd_ip6_filter_cnt; flex_l3 = true; break; default: return -EOPNOTSUPP; } /* Read the current input set from register memory. */ current_mask = i40e_read_fd_input_set(pf, index); new_mask = current_mask; /* Determine, if any, the required changes to the input set in order * to support the provided mask. * * Hardware only supports masking at word (2 byte) granularity and does * not support full bitwise masking. This implementation simplifies * even further and only supports fully enabled or fully disabled * masks for each field, even though we could split the ip4src and * ip4dst fields. */ switch (fsp->flow_type & ~FLOW_EXT) { case SCTP_V4_FLOW: new_mask &= ~I40E_VERIFY_TAG_MASK; fallthrough; case TCP_V4_FLOW: case UDP_V4_FLOW: tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; /* IPv4 source address */ if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) new_mask |= I40E_L3_SRC_MASK; else if (!tcp_ip4_spec->ip4src) new_mask &= ~I40E_L3_SRC_MASK; else return -EOPNOTSUPP; /* IPv4 destination address */ if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) new_mask |= I40E_L3_DST_MASK; else if (!tcp_ip4_spec->ip4dst) new_mask &= ~I40E_L3_DST_MASK; else return -EOPNOTSUPP; /* L4 source port */ if (tcp_ip4_spec->psrc == htons(0xFFFF)) new_mask |= I40E_L4_SRC_MASK; else if (!tcp_ip4_spec->psrc) new_mask &= ~I40E_L4_SRC_MASK; else return -EOPNOTSUPP; /* L4 destination port */ if (tcp_ip4_spec->pdst == htons(0xFFFF)) new_mask |= I40E_L4_DST_MASK; else if (!tcp_ip4_spec->pdst) new_mask &= ~I40E_L4_DST_MASK; else return -EOPNOTSUPP; /* Filtering on Type of Service is not supported. */ if (tcp_ip4_spec->tos) return -EOPNOTSUPP; break; case SCTP_V6_FLOW: new_mask &= ~I40E_VERIFY_TAG_MASK; fallthrough; case TCP_V6_FLOW: case UDP_V6_FLOW: tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; /* Check if user provided IPv6 source address. */ if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, (struct in6_addr *)&ipv6_full_mask)) new_mask |= I40E_L3_V6_SRC_MASK; else if (ipv6_addr_any((struct in6_addr *) &tcp_ip6_spec->ip6src)) new_mask &= ~I40E_L3_V6_SRC_MASK; else return -EOPNOTSUPP; /* Check if user provided destination address. */ if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, (struct in6_addr *)&ipv6_full_mask)) new_mask |= I40E_L3_V6_DST_MASK; else if (ipv6_addr_any((struct in6_addr *) &tcp_ip6_spec->ip6dst)) new_mask &= ~I40E_L3_V6_DST_MASK; else return -EOPNOTSUPP; /* L4 source port */ if (tcp_ip6_spec->psrc == htons(0xFFFF)) new_mask |= I40E_L4_SRC_MASK; else if (!tcp_ip6_spec->psrc) new_mask &= ~I40E_L4_SRC_MASK; else return -EOPNOTSUPP; /* L4 destination port */ if (tcp_ip6_spec->pdst == htons(0xFFFF)) new_mask |= I40E_L4_DST_MASK; else if (!tcp_ip6_spec->pdst) new_mask &= ~I40E_L4_DST_MASK; else return -EOPNOTSUPP; /* Filtering on Traffic Classes is not supported. */ if (tcp_ip6_spec->tclass) return -EOPNOTSUPP; break; case IP_USER_FLOW: usr_ip4_spec = &fsp->m_u.usr_ip4_spec; /* IPv4 source address */ if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) new_mask |= I40E_L3_SRC_MASK; else if (!usr_ip4_spec->ip4src) new_mask &= ~I40E_L3_SRC_MASK; else return -EOPNOTSUPP; /* IPv4 destination address */ if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) new_mask |= I40E_L3_DST_MASK; else if (!usr_ip4_spec->ip4dst) new_mask &= ~I40E_L3_DST_MASK; else return -EOPNOTSUPP; /* First 4 bytes of L4 header */ if (usr_ip4_spec->l4_4_bytes) return -EOPNOTSUPP; /* Filtering on Type of Service is not supported. */ if (usr_ip4_spec->tos) return -EOPNOTSUPP; /* Filtering on IP version is not supported */ if (usr_ip4_spec->ip_ver) return -EINVAL; /* Filtering on L4 protocol is not supported */ if (usr_ip4_spec->proto) return -EINVAL; break; case IPV6_USER_FLOW: usr_ip6_spec = &fsp->m_u.usr_ip6_spec; /* Check if user provided IPv6 source address. */ if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, (struct in6_addr *)&ipv6_full_mask)) new_mask |= I40E_L3_V6_SRC_MASK; else if (ipv6_addr_any((struct in6_addr *) &usr_ip6_spec->ip6src)) new_mask &= ~I40E_L3_V6_SRC_MASK; else return -EOPNOTSUPP; /* Check if user provided destination address. */ if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, (struct in6_addr *)&ipv6_full_mask)) new_mask |= I40E_L3_V6_DST_MASK; else if (ipv6_addr_any((struct in6_addr *) &usr_ip6_spec->ip6dst)) new_mask &= ~I40E_L3_V6_DST_MASK; else return -EOPNOTSUPP; if (usr_ip6_spec->l4_4_bytes) return -EOPNOTSUPP; /* Filtering on Traffic class is not supported. */ if (usr_ip6_spec->tclass) return -EOPNOTSUPP; /* Filtering on L4 protocol is not supported */ if (usr_ip6_spec->l4_proto) return -EINVAL; break; default: return -EOPNOTSUPP; } if (fsp->flow_type & FLOW_EXT) { /* Allow only 802.1Q and no etype defined, as * later it's modified to 0x8100 */ if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && fsp->h_ext.vlan_etype != 0) return -EOPNOTSUPP; if (fsp->m_ext.vlan_tci == htons(0xFFFF)) new_mask |= I40E_VLAN_SRC_MASK; else new_mask &= ~I40E_VLAN_SRC_MASK; } /* First, clear all flexible filter entries */ new_mask &= ~I40E_FLEX_INPUT_MASK; /* If we have a flexible filter, try to add this offset to the correct * flexible filter PIT list. Once finished, we can update the mask. * If the src_offset changed, we will get a new mask value which will * trigger an input set change. */ if (userdef->flex_filter) { struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; /* Flexible offset must be even, since the flexible payload * must be aligned on 2-byte boundary. */ if (userdef->flex_offset & 0x1) { dev_warn(&pf->pdev->dev, "Flexible data offset must be 2-byte aligned\n"); return -EINVAL; } src_offset = userdef->flex_offset >> 1; /* FLX_PIT source offset value is only so large */ if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { dev_warn(&pf->pdev->dev, "Flexible data must reside within first 64 bytes of the packet payload\n"); return -EINVAL; } /* See if this offset has already been programmed. If we get * an ERR_PTR, then the filter is not safe to add. Otherwise, * if we get a NULL pointer, this means we will need to add * the offset. */ flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, src_offset); if (IS_ERR(flex_pit)) return PTR_ERR(flex_pit); /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) * packet types, and thus we need to program both L3 and L4 * flexible values. These must have identical flexible index, * as otherwise we can't correctly program the input set. So * we'll find both an L3 and L4 index and make sure they are * the same. */ if (flex_l3) { l3_flex_pit = i40e_find_flex_offset(&pf->l3_flex_pit_list, src_offset); if (IS_ERR(l3_flex_pit)) return PTR_ERR(l3_flex_pit); if (flex_pit) { /* If we already had a matching L4 entry, we * need to make sure that the L3 entry we * obtained uses the same index. */ if (l3_flex_pit) { if (l3_flex_pit->pit_index != flex_pit->pit_index) { return -EINVAL; } } else { new_flex_offset = true; } } else { flex_pit = l3_flex_pit; } } /* If we didn't find an existing flex offset, we need to * program a new one. However, we don't immediately program it * here because we will wait to program until after we check * that it is safe to change the input set. */ if (!flex_pit) { new_flex_offset = true; pit_index = i40e_unused_pit_index(pf); } else { pit_index = flex_pit->pit_index; } /* Update the mask with the new offset */ new_mask |= i40e_pit_index_to_mask(pit_index); } /* If the mask and flexible filter offsets for this filter match the * currently programmed values we don't need any input set change, so * this filter is safe to install. */ if (new_mask == current_mask && !new_flex_offset) return 0; netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", i40e_flow_str(fsp)); i40e_print_input_set(vsi, current_mask, new_mask); if (new_flex_offset) { netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", pit_index, src_offset); } /* Hardware input sets are global across multiple ports, so even the * main port cannot change them when in MFP mode as this would impact * any filters on the other ports. */ if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\ return -EOPNOTSUPP; } /* This filter requires us to update the input set. However, hardware * only supports one input set per flow type, and does not support * separate masks for each filter. This means that we can only support * a single mask for all filters of a specific type. * * If we have preexisting filters, they obviously depend on the * current programmed input set. Display a diagnostic message in this * case explaining why the filter could not be accepted. */ if (*fdir_filter_count) { netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting fil i40e_flow_str(fsp), *fdir_filter_count); return -EOPNOTSUPP; } i40e_write_fd_input_set(pf, index, new_mask); /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented * frames. If we're programming the input set for IPv4/Other, we also * need to program the IPv4/Fragmented input set. Since we don't have * separate support, we'll always assume and enforce that the two flow * types must have matching input sets. */ if (index == LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) i40e_write_fd_input_set(pf, LIBIE_FILTER_PCTYPE_FRAG_IPV4, new_mask); /* Add the new offset and update table, if necessary */ if (new_flex_offset) { err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, pit_index); if (err) return err; if (flex_l3) { err = i40e_add_flex_offset(&pf->l3_flex_pit_list, src_offset, pit_index); if (err) return err; } i40e_reprogram_flex_pit(pf); } return 0; } /** * i40e_match_fdir_filter - Return true of two filters match * @a: pointer to filter struct * @b: pointer to filter struct * * Returns true if the two filters match exactly the same criteria. I.e. they * match the same flow type and have the same parameters. We don't need to * check any input-set since all filters of the same flow type must use the * same input set. **/ static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, struct i40e_fdir_filter *b) { /* The filters do not much if any of these criteria differ. */ if (a->dst_ip != b->dst_ip || a->src_ip != b->src_ip || a->dst_port != b->dst_port || a->src_port != b->src_port || a->flow_type != b->flow_type || a->ipl4_proto != b->ipl4_proto || a->vlan_tag != b->vlan_tag || a->vlan_etype != b->vlan_etype) return false; return true; } /** * i40e_disallow_matching_filters - Check that new filters differ * @vsi: pointer to the targeted VSI * @input: new filter to check * * Due to hardware limitations, it is not possible for two filters that match * similar criteria to be programmed at the same time. This is true for a few * reasons: * * (a) all filters matching a particular flow type must use the same input * set, that is they must match the same criteria. * (b) different flow types will never match the same packet, as the flow type * is decided by hardware before checking which rules apply. * (c) hardware has no way to distinguish which order filters apply in. * * Due to this, we can't really support using the location data to order * filters in the hardware parsing. It is technically possible for the user to * request two filters matching the same criteria but which select different * queues. In this case, rather than keep both filters in the list, we reject * the 2nd filter when the user requests adding it. * * This avoids needing to track location for programming the filter to * hardware, and ensures that we avoid some strange scenarios involving * deleting filters which match the same criteria. **/ static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, struct i40e_fdir_filter *input) { struct i40e_pf *pf = vsi->back; struct i40e_fdir_filter *rule; struct hlist_node *node2; /* Loop through every filter, and check that it doesn't match */ hlist_for_each_entry_safe(rule, node2, &pf->fdir_filter_list, fdir_node) { /* Don't check the filters match if they share the same fd_id, * since the new filter is actually just updating the target * of the old filter. */ if (rule->fd_id == input->fd_id) continue; /* If any filters match, then print a warning message to the * kernel message buffer and bail out. */ if (i40e_match_fdir_filter(rule, input)) { dev_warn(&pf->pdev->dev, "Existing user defined filter %d already matches this flow.\n", rule->fd_id); return -EINVAL; } } return 0; } /** * i40e_add_fdir_ethtool - Add/Remove Flow Director filters * @vsi: pointer to the targeted VSI * @cmd: command to get or set RX flow classification rules * * Add Flow Director filters for a specific flow spec based on their * protocol. Returns 0 if the filters were successfully added. **/ static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, struct ethtool_rxnfc *cmd) { struct i40e_rx_flow_userdef userdef; struct ethtool_rx_flow_spec *fsp; struct i40e_fdir_filter *input; u16 dest_vsi = 0, q_index = 0; struct i40e_pf *pf; int ret = -EINVAL; u8 dest_ctl; if (!vsi) return -EINVAL; pf = vsi->back; if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags)) return -EOPNOTSUPP; if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) return -ENOSPC; if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) return -EBUSY; if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) return -EBUSY; fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; /* Parse the user-defined field */ if (i40e_parse_rx_flow_user_data(fsp, &userdef)) return -EINVAL; /* Extended MAC field is not supported */ if (fsp->flow_type & FLOW_MAC_EXT) return -EINVAL; ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); if (ret) return ret; if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + pf->hw.func_caps.fd_filters_guaranteed)) { return -EINVAL; } /* ring_cookie is either the drop index, or is a mask of the queue * index and VF id we wish to target. */ if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; } else { u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); if (!vf) { if (ring >= vsi->num_queue_pairs) return -EINVAL; dest_vsi = vsi->id; } else { /* VFs are zero-indexed, so we subtract one here */ vf--; if (vf >= pf->num_alloc_vfs) return -EINVAL; if (ring >= pf->vf[vf].num_queue_pairs) return -EINVAL; dest_vsi = pf->vf[vf].lan_vsi_id; } dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; q_index = ring; } input = kzalloc(sizeof(*input), GFP_KERNEL); if (!input) return -ENOMEM; input->fd_id = fsp->location; input->q_index = q_index; input->dest_vsi = dest_vsi; input->dest_ctl = dest_ctl; input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; input->flow_type = fsp->flow_type & ~FLOW_EXT; input->vlan_etype = fsp->h_ext.vlan_etype; if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) input->vlan_etype = cpu_to_be16(ETH_P_8021Q); if (fsp->m_ext.vlan_tci && input->vlan_etype) input->vlan_tag = fsp->h_ext.vlan_tci; if (input->flow_type == IPV6_USER_FLOW || input->flow_type == UDP_V6_FLOW || input->flow_type == TCP_V6_FLOW || input->flow_type == SCTP_V6_FLOW) { /* Reverse the src and dest notion, since the HW expects them * to be from Tx perspective where as the input from user is * from Rx filter view. */ input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; input->src_port = fsp->h_u.tcp_ip6_spec.pdst; memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, sizeof(__be32) * 4); memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, sizeof(__be32) * 4); } else { /* Reverse the src and dest notion, since the HW expects them * to be from Tx perspective where as the input from user is * from Rx filter view. */ input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; input->src_port = fsp->h_u.tcp_ip4_spec.pdst; input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; } if (userdef.flex_filter) { input->flex_filter = true; input->flex_word = cpu_to_be16(userdef.flex_word); input->flex_offset = userdef.flex_offset; } /* Avoid programming two filters with identical match criteria. */ ret = i40e_disallow_matching_filters(vsi, input); if (ret) goto free_filter_memory; /* Add the input filter to the fdir_input_list, possibly replacing * a previous filter. Do not free the input structure after adding it * to the list as this would cause a use-after-free bug. */ i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); ret = i40e_add_del_fdir(vsi, input, true); if (ret) goto remove_sw_rule; return 0; remove_sw_rule: hlist_del(&input->fdir_node); pf->fdir_pf_active_filters--; free_filter_memory: kfree(input); return ret; } /** * i40e_set_rxnfc - command to set RX flow classification rules * @netdev: network interface device structure * @cmd: ethtool rxnfc command * * Returns Success if the command is supported. **/ static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; int ret = -EOPNOTSUPP; switch (cmd->cmd) { case ETHTOOL_SRXCLSRLINS: ret = i40e_add_fdir_ethtool(vsi, cmd); break; case ETHTOOL_SRXCLSRLDEL: ret = i40e_del_fdir_entry(vsi, cmd); break; default: break; } return ret; } /** * i40e_max_channels - get Max number of combined channels supported * @vsi: vsi pointer **/ static unsigned int i40e_max_channels(struct i40e_vsi *vsi) { /* TODO: This code assumes DCB and FD is disabled for now. */ return vsi->alloc_queue_pairs; } /** * i40e_get_channels - Get the current channels enabled and max supported etc. * @dev: network interface device structure * @ch: ethtool channels structure * * We don't support separate tx and rx queues as channels. The other count * represents how many queues are being used for control. max_combined counts * how many queue pairs we can support. They may not be mapped 1 to 1 with * q_vectors since we support a lot more queue pairs than q_vectors. **/ static void i40e_get_channels(struct net_device *dev, struct ethtool_channels *ch) { struct i40e_netdev_priv *np = netdev_priv(dev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; /* report maximum channels */ ch->max_combined = i40e_max_channels(vsi); /* report info for other vector */ ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0; ch->max_other = ch->other_count; /* Note: This code assumes DCB is disabled for now. */ ch->combined_count = vsi->num_queue_pairs; } /** * i40e_set_channels - Set the new channels count. * @dev: network interface device structure * @ch: ethtool channels structure * * The new channels count may not be the same as requested by the user * since it gets rounded down to a power of 2 value. **/ static int i40e_set_channels(struct net_device *dev, struct ethtool_channels *ch) { const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; struct i40e_netdev_priv *np = netdev_priv(dev); unsigned int count = ch->combined_count; struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_fdir_filter *rule; struct hlist_node *node2; int new_count; int err = 0; /* We do not support setting channels for any other VSI at present */ if (vsi->type != I40E_VSI_MAIN) return -EINVAL; /* We do not support setting channels via ethtool when TCs are * configured through mqprio */ if (i40e_is_tc_mqprio_enabled(pf)) return -EINVAL; /* 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 != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0)) return -EINVAL; /* verify the number of channels does not exceed hardware limits */ if (count > i40e_max_channels(vsi)) return -EINVAL; /* verify that the number of channels does not invalidate any current * flow director rules */ hlist_for_each_entry_safe(rule, node2, &pf->fdir_filter_list, fdir_node) { if (rule->dest_ctl != drop && count <= rule->q_index) { dev_warn(&pf->pdev->dev, "Existing user defined filter %d assigns flow to queue %d\n", rule->fd_id, rule->q_index); err = -EINVAL; } } if (err) { dev_err(&pf->pdev->dev, "Existing filter rules must be deleted to reduce combined channel count to %d\n", count); return err; } /* update feature limits from largest to smallest supported values */ /* TODO: Flow director limit, DCB etc */ /* use rss_reconfig to rebuild with new queue count and update traffic * class queue mapping */ new_count = i40e_reconfig_rss_queues(pf, count); if (new_count > 0) return 0; else return -EINVAL; } /** * i40e_get_rxfh_key_size - get the RSS hash key size * @netdev: network interface device structure * * Returns the table size. **/ static u32 i40e_get_rxfh_key_size(struct net_device *netdev) { return I40E_HKEY_ARRAY_SIZE; } /** * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size * @netdev: network interface device structure * * Returns the table size. **/ static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) { return I40E_HLUT_ARRAY_SIZE; } /** * i40e_get_rxfh - get the rx flow hash indirection table * @netdev: network interface device structure * @rxfh: pointer to param struct (indir, key, hfunc) * * Reads the indirection table directly from the hardware. Returns 0 on * success. **/ static int i40e_get_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; u8 *lut, *seed = NULL; int ret; u16 i; rxfh->hfunc = ETH_RSS_HASH_TOP; if (!rxfh->indir) return 0; seed = rxfh->key; lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); if (!lut) return -ENOMEM; ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); if (ret) goto out; for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) rxfh->indir[i] = (u32)(lut[i]); out: kfree(lut); return ret; } /** * i40e_set_rxfh - set the rx flow hash indirection table * @netdev: network interface device structure * @rxfh: pointer to param struct (indir, key, hfunc) * @extack: extended ACK from the Netlink message * * Returns -EINVAL if the table specifies an invalid queue id, otherwise * returns 0 after programming the table. **/ static int i40e_set_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh, struct netlink_ext_ack *extack) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; u8 *seed = NULL; u16 i; if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && rxfh->hfunc != ETH_RSS_HASH_TOP) return -EOPNOTSUPP; if (rxfh->key) { if (!vsi->rss_hkey_user) { vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, GFP_KERNEL); if (!vsi->rss_hkey_user) return -ENOMEM; } memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE); seed = vsi->rss_hkey_user; } if (!vsi->rss_lut_user) { vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); if (!vsi->rss_lut_user) return -ENOMEM; } /* Each 32 bits pointed by 'indir' is stored with a lut entry */ if (rxfh->indir) for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]); else i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, vsi->rss_size); return i40e_config_rss(vsi, seed, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE); } /** * i40e_get_priv_flags - report device private flags * @dev: network interface device structure * * The get string set count and the string set should be matched for each * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags * array. * * Returns a u32 bitmap of flags. **/ static u32 i40e_get_priv_flags(struct net_device *dev) { struct i40e_netdev_priv *np = netdev_priv(dev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; u32 i, j, ret_flags = 0; for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { const struct i40e_priv_flags *priv_flag; priv_flag = &i40e_gstrings_priv_flags[i]; if (test_bit(priv_flag->bitno, pf->flags)) ret_flags |= BIT(i); } if (pf->hw.pf_id != 0) return ret_flags; for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { const struct i40e_priv_flags *priv_flag; priv_flag = &i40e_gl_gstrings_priv_flags[j]; if (test_bit(priv_flag->bitno, pf->flags)) ret_flags |= BIT(i + j); } return ret_flags; } /** * i40e_set_priv_flags - set private flags * @dev: network interface device structure * @flags: bit flags to be set **/ static int i40e_set_priv_flags(struct net_device *dev, u32 flags) { DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS); DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS); DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS); struct i40e_netdev_priv *np = netdev_priv(dev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; enum libie_aq_err adq_err; u32 reset_needed = 0; int status; u32 i, j; bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS); bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS); for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { const struct i40e_priv_flags *priv_flag; bool new_val; priv_flag = &i40e_gstrings_priv_flags[i]; new_val = (flags & BIT(i)) ? true : false; /* If this is a read-only flag, it can't be changed */ if (priv_flag->read_only && test_bit(priv_flag->bitno, orig_flags) != new_val) return -EOPNOTSUPP; if (new_val) set_bit(priv_flag->bitno, new_flags); else clear_bit(priv_flag->bitno, new_flags); } if (pf->hw.pf_id != 0) goto flags_complete; for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { const struct i40e_priv_flags *priv_flag; bool new_val; priv_flag = &i40e_gl_gstrings_priv_flags[j]; new_val = (flags & BIT(i + j)) ? true : false; /* If this is a read-only flag, it can't be changed */ if (priv_flag->read_only && test_bit(priv_flag->bitno, orig_flags) != new_val) return -EOPNOTSUPP; if (new_val) set_bit(priv_flag->bitno, new_flags); else clear_bit(priv_flag->bitno, new_flags); } flags_complete: bitmap_xor(changed_flags, new_flags, orig_flags, I40E_PF_FLAGS_NBITS); if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) || test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) || test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags)) reset_needed = BIT(__I40E_PF_RESET_REQUESTED); /* Before we finalize any flag changes, we need to perform some * checks to ensure that the changes are supported and safe. */ /* ATR eviction is not supported on all devices */ if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) && !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps)) return -EOPNOTSUPP; /* If the driver detected FW LLDP was disabled on init, this flag could * be set, however we do not support _changing_ the flag: * - on XL710 if NPAR is enabled or FW API version < 1.7 * - on X722 with FW API version < 1.6 * There are situations where older FW versions/NPAR enabled PFs could * disable LLDP, however we _must_ not allow the user to enable/disable * LLDP with this flag on unsupported FW versions. */ if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) && !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) { dev_warn(&pf->pdev->dev, "Device does not support changing FW LLDP\n"); return -EOPNOTSUPP; } if (test_bit(I40E_FLAG_RS_FEC, changed_flags) && pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && pf->hw.device_id != I40E_DEV_ID_25G_B) { dev_warn(&pf->pdev->dev, "Device does not support changing FEC configuration\n"); return -EOPNOTSUPP; } if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) && pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && pf->hw.device_id != I40E_DEV_ID_25G_B && pf->hw.device_id != I40E_DEV_ID_KX_X722) { dev_warn(&pf->pdev->dev, "Device does not support changing FEC configuration\n"); return -EOPNOTSUPP; } /* Process any additional changes needed as a result of flag changes. * The changed_flags value reflects the list of bits that were * changed in the code above. */ /* Flush current ATR settings if ATR was disabled */ if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) && !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) { set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); } if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) { u16 sw_flags = 0, valid_flags = 0; int ret; if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags)) sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 0, NULL); if (ret && pf->hw.aq.asq_last_status != LIBIE_AQ_RC_ESRCH) { dev_info(&pf->pdev->dev, "couldn't set switch config bits, err %pe aq_err %s\n", ERR_PTR(ret), libie_aq_str(pf->hw.aq.asq_last_status)); /* not a fatal problem, just keep going */ } } if (test_bit(I40E_FLAG_RS_FEC, changed_flags) || test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) { u8 fec_cfg = 0; if (test_bit(I40E_FLAG_RS_FEC, new_flags) && test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { fec_cfg = I40E_AQ_SET_FEC_AUTO; } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) { fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | I40E_AQ_SET_FEC_ABILITY_RS); } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | I40E_AQ_SET_FEC_ABILITY_KR); } if (i40e_set_fec_cfg(dev, fec_cfg)) dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); } if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) { dev_err(&pf->pdev->dev, "Setting link-down-on-close not supported on this port (because total-port-shutdown is ena return -EOPNOTSUPP; } if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) && pf->num_alloc_vfs) { dev_warn(&pf->pdev->dev, "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); return -EOPNOTSUPP; } if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) && I40E_2K_TOO_SMALL_WITH_PADDING) { dev_warn(&pf->pdev->dev, "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n"); return -EOPNOTSUPP; } if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) && test_bit(I40E_FLAG_MFP_ENA, new_flags)) dev_warn(&pf->pdev->dev, "Turning on link-down-on-close flag may affect other partitions\n"); if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) { if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) { #ifdef CONFIG_I40E_DCB i40e_dcb_sw_default_config(pf); #endif /* CONFIG_I40E_DCB */ i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); i40e_aq_stop_lldp(&pf->hw, true, false, NULL); } else { status = i40e_aq_start_lldp(&pf->hw, false, NULL); if (status) { adq_err = pf->hw.aq.asq_last_status; switch (adq_err) { case LIBIE_AQ_RC_EEXIST: dev_warn(&pf->pdev->dev, "FW LLDP agent is already running\n"); reset_needed = 0; break; case LIBIE_AQ_RC_EPERM: dev_warn(&pf->pdev->dev, "Device configuration forbids SW from starting the LLDP agent.\n"); return -EINVAL; case LIBIE_AQ_RC_EAGAIN: dev_warn(&pf->pdev->dev, "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); return -EBUSY; default: dev_warn(&pf->pdev->dev, "Starting FW LLDP agent failed: error: %pe, %s\n", ERR_PTR(status), libie_aq_str(adq_err)); return -EINVAL; } } } } /* Now that we've checked to ensure that the new flags are valid, load * them into place. Since we only modify flags either (a) during * initialization or (b) while holding the RTNL lock, we don't need * anything fancy here. */ bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS); /* Issue reset to cause things to take effect, as additional bits * are added we will need to create a mask of bits requiring reset */ if (reset_needed) i40e_do_reset(pf, reset_needed, true); return 0; } /** * i40e_get_module_info - get (Q)SFP+ module type info * @netdev: network interface device structure * @modinfo: module EEPROM size and layout information structure **/ static int i40e_get_module_info(struct net_device *netdev, struct ethtool_modinfo *modinfo) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; u32 sff8472_comp = 0; u32 sff8472_swap = 0; u32 sff8636_rev = 0; u32 type = 0; int status; /* Check if firmware supports reading module EEPROM. */ if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) { netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM imag return -EINVAL; } status = i40e_update_link_info(hw); if (status) return -EIO; if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); return -EINVAL; } type = hw->phy.link_info.module_type[0]; switch (type) { case I40E_MODULE_TYPE_SFP: status = i40e_aq_get_phy_register(hw, I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, I40E_I2C_EEPROM_DEV_ADDR, true, I40E_MODULE_SFF_8472_COMP, &sff8472_comp, NULL); if (status) return -EIO; status = i40e_aq_get_phy_register(hw, I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, I40E_I2C_EEPROM_DEV_ADDR, true, I40E_MODULE_SFF_8472_SWAP, &sff8472_swap, NULL); if (status) return -EIO; /* Check if the module requires address swap to access * the other EEPROM memory page. */ if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); modinfo->type = ETH_MODULE_SFF_8079; modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; } else if (sff8472_comp == 0x00) { /* Module is not SFF-8472 compliant */ modinfo->type = ETH_MODULE_SFF_8079; modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { /* Module is SFF-8472 compliant but doesn't implement * Digital Diagnostic Monitoring (DDM). */ modinfo->type = ETH_MODULE_SFF_8079; modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; } else { modinfo->type = ETH_MODULE_SFF_8472; modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; } break; case I40E_MODULE_TYPE_QSFP_PLUS: /* Read from memory page 0. */ status = i40e_aq_get_phy_register(hw, I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 0, true, I40E_MODULE_REVISION_ADDR, &sff8636_rev, NULL); if (status) return -EIO; /* Determine revision compliance byte */ if (sff8636_rev > 0x02) { /* Module is SFF-8636 compliant */ modinfo->type = ETH_MODULE_SFF_8636; modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; } else { modinfo->type = ETH_MODULE_SFF_8436; modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; } break; case I40E_MODULE_TYPE_QSFP28: modinfo->type = ETH_MODULE_SFF_8636; modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; break; default: netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n"); return -EOPNOTSUPP; } return 0; } /** * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents * @netdev: network interface device structure * @ee: EEPROM dump request structure * @data: buffer to be filled with EEPROM contents **/ static int i40e_get_module_eeprom(struct net_device *netdev, struct ethtool_eeprom *ee, u8 *data) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; bool is_sfp = false; u32 value = 0; int status; int i; if (!ee || !ee->len || !data) return -EINVAL; if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) is_sfp = true; for (i = 0; i < ee->len; i++) { u32 offset = i + ee->offset; u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; /* Check if we need to access the other memory page */ if (is_sfp) { if (offset >= ETH_MODULE_SFF_8079_LEN) { offset -= ETH_MODULE_SFF_8079_LEN; addr = I40E_I2C_EEPROM_DEV_ADDR2; } } else { while (offset >= ETH_MODULE_SFF_8436_LEN) { /* Compute memory page number and offset. */ offset -= ETH_MODULE_SFF_8436_LEN / 2; addr++; } } status = i40e_aq_get_phy_register(hw, I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, addr, true, offset, &value, NULL); if (status) return -EIO; data[i] = value; } return 0; } static void i40e_eee_capability_to_kedata_supported(__le16 eee_capability_, unsigned long *supported) { const int eee_capability = le16_to_cpu(eee_capability_); static const int lut[] = { ETHTOOL_LINK_MODE_100baseT_Full_BIT, ETHTOOL_LINK_MODE_1000baseT_Full_BIT, ETHTOOL_LINK_MODE_10000baseT_Full_BIT, ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, }; linkmode_zero(supported); for (unsigned int i = ARRAY_SIZE(lut); i--; ) if (eee_capability & BIT(i + 1)) linkmode_set_bit(lut[i], supported); } static int i40e_get_eee(struct net_device *netdev, struct ethtool_keee *edata) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_aq_get_phy_abilities_resp phy_cfg; struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; int status; /* Get initial PHY capabilities */ status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); if (status) return -EAGAIN; /* Check whether NIC configuration is compatible with Energy Efficient * Ethernet (EEE) mode. */ if (phy_cfg.eee_capability == 0) return -EOPNOTSUPP; i40e_eee_capability_to_kedata_supported(phy_cfg.eee_capability, edata->supported); linkmode_copy(edata->lp_advertised, edata->supported); /* Get current configuration */ status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); if (status) return -EAGAIN; linkmode_zero(edata->advertised); if (phy_cfg.eee_capability) linkmode_copy(edata->advertised, edata->supported); edata->eee_enabled = !!phy_cfg.eee_capability; edata->tx_lpi_enabled = pf->stats.tx_lpi_status; edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; return 0; } static int i40e_is_eee_param_supported(struct net_device *netdev, struct ethtool_keee *edata) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_ethtool_not_used { bool value; const char *name; } param[] = { {!!(edata->advertised[0] & ~edata->supported[0]), "advertise"}, {!!edata->tx_lpi_timer, "tx-timer"}, {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} }; int i; for (i = 0; i < ARRAY_SIZE(param); i++) { if (param[i].value) { netdev_info(netdev, "EEE setting %s not supported\n", param[i].name); return -EOPNOTSUPP; } } return 0; } static int i40e_set_eee(struct net_device *netdev, struct ethtool_keee *edata) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_aq_get_phy_abilities_resp abilities; struct i40e_aq_set_phy_config config; struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; struct i40e_hw *hw = &pf->hw; __le16 eee_capability; int status; /* Deny parameters we don't support */ if (i40e_is_eee_param_supported(netdev, edata)) return -EOPNOTSUPP; /* Get initial PHY capabilities */ status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, NULL); if (status) return -EAGAIN; /* Check whether NIC configuration is compatible with Energy Efficient * Ethernet (EEE) mode. */ if (abilities.eee_capability == 0) return -EOPNOTSUPP; /* Cache initial EEE capability */ eee_capability = abilities.eee_capability; /* Get current PHY configuration */ status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, NULL); if (status) return -EAGAIN; /* Cache current PHY configuration */ config.phy_type = abilities.phy_type; config.phy_type_ext = abilities.phy_type_ext; config.link_speed = abilities.link_speed; config.abilities = abilities.abilities | I40E_AQ_PHY_ENABLE_ATOMIC_LINK; config.eeer = abilities.eeer_val; config.low_power_ctrl = abilities.d3_lpan; config.fec_config = abilities.fec_cfg_curr_mod_ext_info & I40E_AQ_PHY_FEC_CONFIG_MASK; /* Set desired EEE state */ if (edata->eee_enabled) { config.eee_capability = eee_capability; config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); } else { config.eee_capability = 0; config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); } /* Apply modified PHY configuration */ status = i40e_aq_set_phy_config(hw, &config, NULL); if (status) return -EAGAIN; return 0; } static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { .get_drvinfo = i40e_get_drvinfo, .set_eeprom = i40e_set_eeprom, .get_eeprom_len = i40e_get_eeprom_len, .get_eeprom = i40e_get_eeprom, }; static const struct ethtool_ops i40e_ethtool_ops = { .supported_coalesce_params = ETHTOOL_COALESCE_USECS | ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ | ETHTOOL_COALESCE_USE_ADAPTIVE | ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH, .get_drvinfo = i40e_get_drvinfo, .get_regs_len = i40e_get_regs_len, .get_regs = i40e_get_regs, .nway_reset = i40e_nway_reset, .get_link = ethtool_op_get_link, .get_link_ext_stats = i40e_get_link_ext_stats, .get_wol = i40e_get_wol, .set_wol = i40e_set_wol, .set_eeprom = i40e_set_eeprom, .get_eeprom_len = i40e_get_eeprom_len, .get_eeprom = i40e_get_eeprom, .get_ringparam = i40e_get_ringparam, .set_ringparam = i40e_set_ringparam, .get_pauseparam = i40e_get_pauseparam, .set_pauseparam = i40e_set_pauseparam, .get_msglevel = i40e_get_msglevel, .set_msglevel = i40e_set_msglevel, .get_rxnfc = i40e_get_rxnfc, .set_rxnfc = i40e_set_rxnfc, .self_test = i40e_diag_test, .get_strings = i40e_get_strings, .get_eee = i40e_get_eee, .set_eee = i40e_set_eee, .set_phys_id = i40e_set_phys_id, .get_sset_count = i40e_get_sset_count, .get_ethtool_stats = i40e_get_ethtool_stats, .get_coalesce = i40e_get_coalesce, .set_coalesce = i40e_set_coalesce, .get_rxfh_key_size = i40e_get_rxfh_key_size, .get_rxfh_indir_size = i40e_get_rxfh_indir_size, .get_rxfh = i40e_get_rxfh, .set_rxfh = i40e_set_rxfh, .get_rxfh_fields = i40e_get_rxfh_fields, .set_rxfh_fields = i40e_set_rxfh_fields, .get_channels = i40e_get_channels, .set_channels = i40e_set_channels, .get_module_info = i40e_get_module_info, .get_module_eeprom = i40e_get_module_eeprom, .get_ts_info = i40e_get_ts_info, .get_priv_flags = i40e_get_priv_flags, .set_priv_flags = i40e_set_priv_flags, .get_per_queue_coalesce = i40e_get_per_queue_coalesce, .set_per_queue_coalesce = i40e_set_per_queue_coalesce, .get_link_ksettings = i40e_get_link_ksettings, .set_link_ksettings = i40e_set_link_ksettings, .get_fecparam = i40e_get_fec_param, .set_fecparam = i40e_set_fec_param, .flash_device = i40e_ddp_flash, }; void i40e_set_ethtool_ops(struct net_device *netdev) { struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_pf *pf = np->vsi->back; if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) netdev->ethtool_ops = &i40e_ethtool_ops; else netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; }
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2026-10-10