2562 lines · c
1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2/* Copyright (C) 2015-2018 Netronome Systems, Inc. */3 4/*5 * nfp_net_ethtool.c6 * Netronome network device driver: ethtool support7 * Authors: Jakub Kicinski <jakub.kicinski@netronome.com>8 * Jason McMullan <jason.mcmullan@netronome.com>9 * Rolf Neugebauer <rolf.neugebauer@netronome.com>10 * Brad Petrus <brad.petrus@netronome.com>11 */12 13#include <linux/bitfield.h>14#include <linux/kernel.h>15#include <linux/netdevice.h>16#include <linux/etherdevice.h>17#include <linux/interrupt.h>18#include <linux/pci.h>19#include <linux/ethtool.h>20#include <linux/firmware.h>21#include <linux/sfp.h>22 23#include "nfpcore/nfp.h"24#include "nfpcore/nfp_dev.h"25#include "nfpcore/nfp_nsp.h"26#include "nfp_app.h"27#include "nfp_main.h"28#include "nfp_net_ctrl.h"29#include "nfp_net_dp.h"30#include "nfp_net.h"31#include "nfp_port.h"32#include "nfpcore/nfp_cpp.h"33 34struct nfp_et_stat {35 char name[ETH_GSTRING_LEN];36 int off;37};38 39static const struct nfp_et_stat nfp_net_et_stats[] = {40 /* Stats from the device */41 { "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS },42 { "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS },43 { "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS },44 { "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS },45 { "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS },46 { "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS },47 { "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES },48 { "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES },49 { "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES },50 51 { "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS },52 { "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS },53 { "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS },54 { "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS },55 { "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS },56 { "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS },57 { "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES },58 { "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES },59 { "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES },60 61 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },62 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },63 /* see comments in outro functions in nfp_bpf_jit.c to find out64 * how different BPF modes use app-specific counters65 */66 { "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES },67 { "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES },68 { "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES },69 { "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES },70 { "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES },71 { "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES },72};73 74static const struct nfp_et_stat nfp_mac_et_stats[] = {75 { "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, },76 { "rx_frame_too_long_errors",77 NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, },78 { "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, },79 { "rx_vlan_received_ok", NFP_MAC_STATS_RX_VLAN_RECEIVED_OK, },80 { "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, },81 { "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, },82 { "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, },83 { "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, },84 { "rx_pause_mac_ctrl_frames",85 NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, },86 { "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, },87 { "rx_frame_check_sequence_errors",88 NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, },89 { "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, },90 { "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, },91 { "rx_pkts", NFP_MAC_STATS_RX_PKTS, },92 { "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, },93 { "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, },94 { "rx_pkts_65_to_127_octets",95 NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, },96 { "rx_pkts_128_to_255_octets",97 NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, },98 { "rx_pkts_256_to_511_octets",99 NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, },100 { "rx_pkts_512_to_1023_octets",101 NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, },102 { "rx_pkts_1024_to_1518_octets",103 NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, },104 { "rx_pkts_1519_to_max_octets",105 NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, },106 { "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, },107 { "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, },108 { "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, },109 { "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, },110 { "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, },111 { "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, },112 { "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, },113 { "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, },114 { "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, },115 { "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, },116 { "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, },117 { "rx_mac_ctrl_frames_received",118 NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, },119 { "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, },120 { "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, },121 { "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, },122 { "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, },123 { "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, },124 { "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, },125 { "tx_pause_mac_ctrl_frames",126 NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, },127 { "tx_frames_transmitted_ok",128 NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, },129 { "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, },130 { "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, },131 { "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, },132 { "tx_pkts_65_to_127_octets",133 NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, },134 { "tx_pkts_128_to_255_octets",135 NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, },136 { "tx_pkts_256_to_511_octets",137 NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, },138 { "tx_pkts_512_to_1023_octets",139 NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, },140 { "tx_pkts_1024_to_1518_octets",141 NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, },142 { "tx_pkts_1519_to_max_octets",143 NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, },144 { "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, },145 { "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, },146 { "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, },147 { "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, },148 { "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, },149 { "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, },150 { "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, },151 { "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, },152};153 154static const char nfp_tlv_stat_names[][ETH_GSTRING_LEN] = {155 [1] = "dev_rx_discards",156 [2] = "dev_rx_errors",157 [3] = "dev_rx_bytes",158 [4] = "dev_rx_uc_bytes",159 [5] = "dev_rx_mc_bytes",160 [6] = "dev_rx_bc_bytes",161 [7] = "dev_rx_pkts",162 [8] = "dev_rx_mc_pkts",163 [9] = "dev_rx_bc_pkts",164 165 [10] = "dev_tx_discards",166 [11] = "dev_tx_errors",167 [12] = "dev_tx_bytes",168 [13] = "dev_tx_uc_bytes",169 [14] = "dev_tx_mc_bytes",170 [15] = "dev_tx_bc_bytes",171 [16] = "dev_tx_pkts",172 [17] = "dev_tx_mc_pkts",173 [18] = "dev_tx_bc_pkts",174};175 176#define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)177#define NN_ET_SWITCH_STATS_LEN 9178#define NN_RVEC_GATHER_STATS 13179#define NN_RVEC_PER_Q_STATS 3180#define NN_CTRL_PATH_STATS 4181 182#define SFP_SFF_REV_COMPLIANCE 1183 184static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)185{186 struct nfp_nsp *nsp;187 188 if (!app)189 return;190 191 nsp = nfp_nsp_open(app->cpp);192 if (IS_ERR(nsp))193 return;194 195 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",196 nfp_nsp_get_abi_ver_major(nsp),197 nfp_nsp_get_abi_ver_minor(nsp));198 199 nfp_nsp_close(nsp);200}201 202static void203nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,204 const char *vnic_version, struct ethtool_drvinfo *drvinfo)205{206 char nsp_version[ETHTOOL_FWVERS_LEN] = {};207 208 strscpy(drvinfo->driver, dev_driver_string(&pdev->dev),209 sizeof(drvinfo->driver));210 nfp_net_get_nspinfo(app, nsp_version);211 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),212 "%s %s %s %s", vnic_version, nsp_version,213 nfp_app_mip_name(app), nfp_app_name(app));214}215 216static void217nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)218{219 char vnic_version[ETHTOOL_FWVERS_LEN] = {};220 struct nfp_net *nn = netdev_priv(netdev);221 222 snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d",223 nn->fw_ver.extend, nn->fw_ver.class,224 nn->fw_ver.major, nn->fw_ver.minor);225 strscpy(drvinfo->bus_info, pci_name(nn->pdev),226 sizeof(drvinfo->bus_info));227 228 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);229}230 231static int232nfp_net_nway_reset(struct net_device *netdev)233{234 struct nfp_eth_table_port *eth_port;235 struct nfp_port *port;236 int err;237 238 port = nfp_port_from_netdev(netdev);239 eth_port = nfp_port_get_eth_port(port);240 if (!eth_port)241 return -EOPNOTSUPP;242 243 if (!netif_running(netdev))244 return 0;245 246 err = nfp_eth_set_configured(port->app->cpp, eth_port->index, false);247 if (err) {248 netdev_info(netdev, "Link down failed: %d\n", err);249 return err;250 }251 252 err = nfp_eth_set_configured(port->app->cpp, eth_port->index, true);253 if (err) {254 netdev_info(netdev, "Link up failed: %d\n", err);255 return err;256 }257 258 netdev_info(netdev, "Link reset succeeded\n");259 return 0;260}261 262static void263nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)264{265 struct nfp_app *app = nfp_app_from_netdev(netdev);266 267 strscpy(drvinfo->bus_info, pci_name(app->pdev),268 sizeof(drvinfo->bus_info));269 nfp_get_drvinfo(app, app->pdev, "*", drvinfo);270}271 272static void273nfp_net_set_fec_link_mode(struct nfp_eth_table_port *eth_port,274 struct ethtool_link_ksettings *c)275{276 unsigned int modes;277 278 ethtool_link_ksettings_add_link_mode(c, supported, FEC_NONE);279 if (!nfp_eth_can_support_fec(eth_port)) {280 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_NONE);281 return;282 }283 284 modes = nfp_eth_supported_fec_modes(eth_port);285 if (modes & NFP_FEC_BASER) {286 ethtool_link_ksettings_add_link_mode(c, supported, FEC_BASER);287 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_BASER);288 }289 290 if (modes & NFP_FEC_REED_SOLOMON) {291 ethtool_link_ksettings_add_link_mode(c, supported, FEC_RS);292 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_RS);293 }294}295 296static const struct nfp_eth_media_link_mode {297 u16 ethtool_link_mode;298 u16 speed;299} nfp_eth_media_table[NFP_MEDIA_LINK_MODES_NUMBER] = {300 [NFP_MEDIA_1000BASE_CX] = {301 .ethtool_link_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,302 .speed = NFP_SPEED_1G,303 },304 [NFP_MEDIA_1000BASE_KX] = {305 .ethtool_link_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,306 .speed = NFP_SPEED_1G,307 },308 [NFP_MEDIA_10GBASE_KX4] = {309 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,310 .speed = NFP_SPEED_10G,311 },312 [NFP_MEDIA_10GBASE_KR] = {313 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,314 .speed = NFP_SPEED_10G,315 },316 [NFP_MEDIA_10GBASE_LR] = {317 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,318 .speed = NFP_SPEED_10G,319 },320 [NFP_MEDIA_10GBASE_CX4] = {321 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,322 .speed = NFP_SPEED_10G,323 },324 [NFP_MEDIA_10GBASE_CR] = {325 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseCR_Full_BIT,326 .speed = NFP_SPEED_10G,327 },328 [NFP_MEDIA_10GBASE_SR] = {329 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,330 .speed = NFP_SPEED_10G,331 },332 [NFP_MEDIA_10GBASE_ER] = {333 .ethtool_link_mode = ETHTOOL_LINK_MODE_10000baseER_Full_BIT,334 .speed = NFP_SPEED_10G,335 },336 [NFP_MEDIA_25GBASE_KR] = {337 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,338 .speed = NFP_SPEED_25G,339 },340 [NFP_MEDIA_25GBASE_KR_S] = {341 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,342 .speed = NFP_SPEED_25G,343 },344 [NFP_MEDIA_25GBASE_CR] = {345 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,346 .speed = NFP_SPEED_25G,347 },348 [NFP_MEDIA_25GBASE_CR_S] = {349 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,350 .speed = NFP_SPEED_25G,351 },352 [NFP_MEDIA_25GBASE_SR] = {353 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,354 .speed = NFP_SPEED_25G,355 },356 [NFP_MEDIA_25GBASE_LR] = {357 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,358 .speed = NFP_SPEED_25G,359 },360 [NFP_MEDIA_25GBASE_ER] = {361 .ethtool_link_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,362 .speed = NFP_SPEED_25G,363 },364 [NFP_MEDIA_40GBASE_CR4] = {365 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,366 .speed = NFP_SPEED_40G,367 },368 [NFP_MEDIA_40GBASE_KR4] = {369 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,370 .speed = NFP_SPEED_40G,371 },372 [NFP_MEDIA_40GBASE_SR4] = {373 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,374 .speed = NFP_SPEED_40G,375 },376 [NFP_MEDIA_40GBASE_LR4] = {377 .ethtool_link_mode = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,378 .speed = NFP_SPEED_40G,379 },380 [NFP_MEDIA_50GBASE_KR] = {381 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,382 .speed = NFP_SPEED_50G,383 },384 [NFP_MEDIA_50GBASE_SR] = {385 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,386 .speed = NFP_SPEED_50G,387 },388 [NFP_MEDIA_50GBASE_CR] = {389 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,390 .speed = NFP_SPEED_50G,391 },392 [NFP_MEDIA_50GBASE_LR] = {393 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,394 .speed = NFP_SPEED_50G,395 },396 [NFP_MEDIA_50GBASE_ER] = {397 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,398 .speed = NFP_SPEED_50G,399 },400 [NFP_MEDIA_50GBASE_FR] = {401 .ethtool_link_mode = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,402 .speed = NFP_SPEED_50G,403 },404 [NFP_MEDIA_100GBASE_KR4] = {405 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,406 .speed = NFP_SPEED_100G,407 },408 [NFP_MEDIA_100GBASE_SR4] = {409 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,410 .speed = NFP_SPEED_100G,411 },412 [NFP_MEDIA_100GBASE_CR4] = {413 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,414 .speed = NFP_SPEED_100G,415 },416 [NFP_MEDIA_100GBASE_KP4] = {417 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,418 .speed = NFP_SPEED_100G,419 },420 [NFP_MEDIA_100GBASE_CR10] = {421 .ethtool_link_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,422 .speed = NFP_SPEED_100G,423 },424};425 426static const unsigned int nfp_eth_speed_map[NFP_SUP_SPEED_NUMBER] = {427 [NFP_SPEED_1G] = SPEED_1000,428 [NFP_SPEED_10G] = SPEED_10000,429 [NFP_SPEED_25G] = SPEED_25000,430 [NFP_SPEED_40G] = SPEED_40000,431 [NFP_SPEED_50G] = SPEED_50000,432 [NFP_SPEED_100G] = SPEED_100000,433};434 435static void nfp_add_media_link_mode(struct nfp_port *port,436 struct nfp_eth_table_port *eth_port,437 struct ethtool_link_ksettings *cmd)438{439 bitmap_zero(port->speed_bitmap, NFP_SUP_SPEED_NUMBER);440 441 for (u32 i = 0; i < NFP_MEDIA_LINK_MODES_NUMBER; i++) {442 if (i < 64) {443 if (eth_port->link_modes_supp[0] & BIT_ULL(i)) {444 __set_bit(nfp_eth_media_table[i].ethtool_link_mode,445 cmd->link_modes.supported);446 __set_bit(nfp_eth_media_table[i].speed,447 port->speed_bitmap);448 }449 450 if (eth_port->link_modes_ad[0] & BIT_ULL(i))451 __set_bit(nfp_eth_media_table[i].ethtool_link_mode,452 cmd->link_modes.advertising);453 } else {454 if (eth_port->link_modes_supp[1] & BIT_ULL(i - 64)) {455 __set_bit(nfp_eth_media_table[i].ethtool_link_mode,456 cmd->link_modes.supported);457 __set_bit(nfp_eth_media_table[i].speed,458 port->speed_bitmap);459 }460 461 if (eth_port->link_modes_ad[1] & BIT_ULL(i - 64))462 __set_bit(nfp_eth_media_table[i].ethtool_link_mode,463 cmd->link_modes.advertising);464 }465 }466 467 /* We take all speeds as supported when it fails to read468 * link modes due to old management firmware that doesn't469 * support link modes reading or error occurring, so that470 * speed change of this port is allowed.471 */472 if (bitmap_empty(port->speed_bitmap, NFP_SUP_SPEED_NUMBER))473 bitmap_fill(port->speed_bitmap, NFP_SUP_SPEED_NUMBER);474}475 476/**477 * nfp_net_get_link_ksettings - Get Link Speed settings478 * @netdev: network interface device structure479 * @cmd: ethtool command480 *481 * Reports speed settings based on info in the BAR provided by the fw.482 */483static int484nfp_net_get_link_ksettings(struct net_device *netdev,485 struct ethtool_link_ksettings *cmd)486{487 struct nfp_eth_table_port *eth_port;488 struct nfp_port *port;489 struct nfp_net *nn;490 unsigned int speed;491 u16 sts;492 493 /* Init to unknowns */494 ethtool_link_ksettings_zero_link_mode(cmd, supported);495 ethtool_link_ksettings_zero_link_mode(cmd, advertising);496 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);497 cmd->base.port = PORT_OTHER;498 cmd->base.speed = SPEED_UNKNOWN;499 cmd->base.duplex = DUPLEX_UNKNOWN;500 501 port = nfp_port_from_netdev(netdev);502 eth_port = nfp_port_get_eth_port(port);503 if (eth_port) {504 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);505 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);506 nfp_add_media_link_mode(port, eth_port, cmd);507 if (eth_port->supp_aneg) {508 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);509 if (eth_port->aneg == NFP_ANEG_AUTO) {510 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);511 cmd->base.autoneg = AUTONEG_ENABLE;512 }513 }514 nfp_net_set_fec_link_mode(eth_port, cmd);515 }516 517 if (!netif_carrier_ok(netdev))518 return 0;519 520 /* Use link speed from ETH table if available, otherwise try the BAR */521 if (eth_port) {522 cmd->base.port = eth_port->port_type;523 cmd->base.speed = eth_port->speed;524 cmd->base.duplex = DUPLEX_FULL;525 return 0;526 }527 528 if (!nfp_netdev_is_nfp_net(netdev))529 return -EOPNOTSUPP;530 nn = netdev_priv(netdev);531 532 sts = nn_readw(nn, NFP_NET_CFG_STS);533 speed = nfp_net_lr2speed(FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts));534 if (!speed)535 return -EOPNOTSUPP;536 537 if (speed != SPEED_UNKNOWN) {538 cmd->base.speed = speed;539 cmd->base.duplex = DUPLEX_FULL;540 }541 542 return 0;543}544 545static int546nfp_net_set_link_ksettings(struct net_device *netdev,547 const struct ethtool_link_ksettings *cmd)548{549 bool req_aneg = (cmd->base.autoneg == AUTONEG_ENABLE);550 struct nfp_eth_table_port *eth_port;551 struct nfp_port *port;552 struct nfp_nsp *nsp;553 int err;554 555 port = nfp_port_from_netdev(netdev);556 eth_port = __nfp_port_get_eth_port(port);557 if (!eth_port)558 return -EOPNOTSUPP;559 560 if (netif_running(netdev)) {561 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n");562 return -EBUSY;563 }564 565 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);566 if (IS_ERR(nsp))567 return PTR_ERR(nsp);568 569 if (req_aneg && !eth_port->supp_aneg) {570 netdev_warn(netdev, "Autoneg is not supported.\n");571 err = -EOPNOTSUPP;572 goto err_bad_set;573 }574 575 err = __nfp_eth_set_aneg(nsp, req_aneg ? NFP_ANEG_AUTO : NFP_ANEG_DISABLED);576 if (err)577 goto err_bad_set;578 579 if (cmd->base.speed != SPEED_UNKNOWN) {580 u32 speed = cmd->base.speed / eth_port->lanes;581 bool is_supported = false;582 583 for (u32 i = 0; i < NFP_SUP_SPEED_NUMBER; i++) {584 if (cmd->base.speed == nfp_eth_speed_map[i] &&585 test_bit(i, port->speed_bitmap)) {586 is_supported = true;587 break;588 }589 }590 591 if (!is_supported) {592 netdev_err(netdev, "Speed %u is not supported.\n",593 cmd->base.speed);594 err = -EINVAL;595 goto err_bad_set;596 }597 598 if (req_aneg) {599 netdev_err(netdev, "Speed changing is not allowed when working on autoneg mode.\n");600 err = -EINVAL;601 goto err_bad_set;602 }603 604 err = __nfp_eth_set_speed(nsp, speed);605 if (err)606 goto err_bad_set;607 }608 609 err = nfp_eth_config_commit_end(nsp);610 if (err > 0)611 return 0; /* no change */612 613 nfp_net_refresh_port_table(port);614 615 return err;616 617err_bad_set:618 nfp_eth_config_cleanup_end(nsp);619 return err;620}621 622static void nfp_net_get_ringparam(struct net_device *netdev,623 struct ethtool_ringparam *ring,624 struct kernel_ethtool_ringparam *kernel_ring,625 struct netlink_ext_ack *extack)626{627 struct nfp_net *nn = netdev_priv(netdev);628 u32 qc_max = nn->dev_info->max_qc_size;629 630 ring->rx_max_pending = qc_max;631 ring->tx_max_pending = qc_max / nn->dp.ops->tx_min_desc_per_pkt;632 ring->rx_pending = nn->dp.rxd_cnt;633 ring->tx_pending = nn->dp.txd_cnt;634}635 636static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt,637 struct netlink_ext_ack *extack)638{639 struct nfp_net_dp *dp;640 641 dp = nfp_net_clone_dp(nn);642 if (!dp)643 return -ENOMEM;644 645 dp->rxd_cnt = rxd_cnt;646 dp->txd_cnt = txd_cnt;647 648 return nfp_net_ring_reconfig(nn, dp, extack);649}650 651static int nfp_net_set_ringparam(struct net_device *netdev,652 struct ethtool_ringparam *ring,653 struct kernel_ethtool_ringparam *kernel_ring,654 struct netlink_ext_ack *extack)655{656 u32 tx_dpp, qc_min, qc_max, rxd_cnt, txd_cnt;657 struct nfp_net *nn = netdev_priv(netdev);658 659 /* We don't have separate queues/rings for small/large frames. */660 if (ring->rx_mini_pending || ring->rx_jumbo_pending)661 return -EOPNOTSUPP;662 663 qc_min = nn->dev_info->min_qc_size;664 qc_max = nn->dev_info->max_qc_size;665 tx_dpp = nn->dp.ops->tx_min_desc_per_pkt;666 /* Round up to supported values */667 rxd_cnt = roundup_pow_of_two(ring->rx_pending);668 txd_cnt = roundup_pow_of_two(ring->tx_pending);669 670 if (rxd_cnt < qc_min || rxd_cnt > qc_max) {671 NL_SET_ERR_MSG_MOD(extack, "rx parameter out of bounds");672 return -EINVAL;673 }674 675 if (txd_cnt < qc_min / tx_dpp || txd_cnt > qc_max / tx_dpp) {676 NL_SET_ERR_MSG_MOD(extack, "tx parameter out of bounds");677 return -EINVAL;678 }679 680 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt)681 return 0;682 683 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n",684 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt);685 686 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt, extack);687}688 689static int nfp_test_link(struct net_device *netdev)690{691 if (!netif_carrier_ok(netdev) || !(netdev->flags & IFF_UP))692 return 1;693 694 return 0;695}696 697static int nfp_test_nsp(struct net_device *netdev)698{699 struct nfp_app *app = nfp_app_from_netdev(netdev);700 struct nfp_nsp_identify *nspi;701 struct nfp_nsp *nsp;702 int err;703 704 nsp = nfp_nsp_open(app->cpp);705 if (IS_ERR(nsp)) {706 err = PTR_ERR(nsp);707 netdev_info(netdev, "NSP Test: failed to access the NSP: %d\n", err);708 goto exit;709 }710 711 if (nfp_nsp_get_abi_ver_minor(nsp) < 15) {712 err = -EOPNOTSUPP;713 goto exit_close_nsp;714 }715 716 nspi = kzalloc(sizeof(*nspi), GFP_KERNEL);717 if (!nspi) {718 err = -ENOMEM;719 goto exit_close_nsp;720 }721 722 err = nfp_nsp_read_identify(nsp, nspi, sizeof(*nspi));723 if (err < 0)724 netdev_info(netdev, "NSP Test: reading bsp version failed %d\n", err);725 726 kfree(nspi);727exit_close_nsp:728 nfp_nsp_close(nsp);729exit:730 return err;731}732 733static int nfp_test_fw(struct net_device *netdev)734{735 struct nfp_net *nn = netdev_priv(netdev);736 int err;737 738 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_GEN);739 if (err)740 netdev_info(netdev, "FW Test: update failed %d\n", err);741 742 return err;743}744 745static int nfp_test_reg(struct net_device *netdev)746{747 struct nfp_app *app = nfp_app_from_netdev(netdev);748 struct nfp_cpp *cpp = app->cpp;749 u32 model = nfp_cpp_model(cpp);750 u32 value;751 int err;752 753 err = nfp_cpp_model_autodetect(cpp, &value);754 if (err < 0) {755 netdev_info(netdev, "REG Test: NFP model detection failed %d\n", err);756 return err;757 }758 759 return (value == model) ? 0 : 1;760}761 762static bool link_test_supported(struct net_device *netdev)763{764 return true;765}766 767static bool nsp_test_supported(struct net_device *netdev)768{769 if (nfp_app_from_netdev(netdev))770 return true;771 772 return false;773}774 775static bool fw_test_supported(struct net_device *netdev)776{777 if (nfp_netdev_is_nfp_net(netdev))778 return true;779 780 return false;781}782 783static bool reg_test_supported(struct net_device *netdev)784{785 if (nfp_app_from_netdev(netdev))786 return true;787 788 return false;789}790 791static struct nfp_self_test_item {792 char name[ETH_GSTRING_LEN];793 bool (*is_supported)(struct net_device *dev);794 int (*func)(struct net_device *dev);795} nfp_self_test[] = {796 {"Link Test", link_test_supported, nfp_test_link},797 {"NSP Test", nsp_test_supported, nfp_test_nsp},798 {"Firmware Test", fw_test_supported, nfp_test_fw},799 {"Register Test", reg_test_supported, nfp_test_reg}800};801 802#define NFP_TEST_TOTAL_NUM ARRAY_SIZE(nfp_self_test)803 804static void nfp_get_self_test_strings(struct net_device *netdev, u8 *data)805{806 int i;807 808 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++)809 if (nfp_self_test[i].is_supported(netdev))810 ethtool_puts(&data, nfp_self_test[i].name);811}812 813static int nfp_get_self_test_count(struct net_device *netdev)814{815 int i, count = 0;816 817 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++)818 if (nfp_self_test[i].is_supported(netdev))819 count++;820 821 return count;822}823 824static void nfp_net_self_test(struct net_device *netdev, struct ethtool_test *eth_test,825 u64 *data)826{827 int i, ret, count = 0;828 829 netdev_info(netdev, "Start self test\n");830 831 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) {832 if (nfp_self_test[i].is_supported(netdev)) {833 ret = nfp_self_test[i].func(netdev);834 if (ret)835 eth_test->flags |= ETH_TEST_FL_FAILED;836 data[count++] = ret;837 }838 }839 840 netdev_info(netdev, "Test end\n");841}842 843static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)844{845 struct nfp_net *nn = netdev_priv(netdev);846 847 return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS +848 NN_CTRL_PATH_STATS;849}850 851static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data)852{853 struct nfp_net *nn = netdev_priv(netdev);854 int i;855 856 for (i = 0; i < nn->max_r_vecs; i++) {857 ethtool_sprintf(&data, "rvec_%u_rx_pkts", i);858 ethtool_sprintf(&data, "rvec_%u_tx_pkts", i);859 ethtool_sprintf(&data, "rvec_%u_tx_busy", i);860 }861 862 ethtool_puts(&data, "hw_rx_csum_ok");863 ethtool_puts(&data, "hw_rx_csum_inner_ok");864 ethtool_puts(&data, "hw_rx_csum_complete");865 ethtool_puts(&data, "hw_rx_csum_err");866 ethtool_puts(&data, "rx_replace_buf_alloc_fail");867 ethtool_puts(&data, "rx_tls_decrypted_packets");868 ethtool_puts(&data, "hw_tx_csum");869 ethtool_puts(&data, "hw_tx_inner_csum");870 ethtool_puts(&data, "tx_gather");871 ethtool_puts(&data, "tx_lso");872 ethtool_puts(&data, "tx_tls_encrypted_packets");873 ethtool_puts(&data, "tx_tls_ooo");874 ethtool_puts(&data, "tx_tls_drop_no_sync_data");875 876 ethtool_puts(&data, "hw_tls_no_space");877 ethtool_puts(&data, "rx_tls_resync_req_ok");878 ethtool_puts(&data, "rx_tls_resync_req_ign");879 ethtool_puts(&data, "rx_tls_resync_sent");880 881 return data;882}883 884static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)885{886 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {};887 struct nfp_net *nn = netdev_priv(netdev);888 u64 tmp[NN_RVEC_GATHER_STATS];889 unsigned int i, j;890 891 for (i = 0; i < nn->max_r_vecs; i++) {892 unsigned int start;893 894 do {895 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync);896 data[0] = nn->r_vecs[i].rx_pkts;897 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok;898 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok;899 tmp[2] = nn->r_vecs[i].hw_csum_rx_complete;900 tmp[3] = nn->r_vecs[i].hw_csum_rx_error;901 tmp[4] = nn->r_vecs[i].rx_replace_buf_alloc_fail;902 tmp[5] = nn->r_vecs[i].hw_tls_rx;903 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start));904 905 do {906 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync);907 data[1] = nn->r_vecs[i].tx_pkts;908 data[2] = nn->r_vecs[i].tx_busy;909 tmp[6] = nn->r_vecs[i].hw_csum_tx;910 tmp[7] = nn->r_vecs[i].hw_csum_tx_inner;911 tmp[8] = nn->r_vecs[i].tx_gather;912 tmp[9] = nn->r_vecs[i].tx_lso;913 tmp[10] = nn->r_vecs[i].hw_tls_tx;914 tmp[11] = nn->r_vecs[i].tls_tx_fallback;915 tmp[12] = nn->r_vecs[i].tls_tx_no_fallback;916 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));917 918 data += NN_RVEC_PER_Q_STATS;919 920 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)921 gathered_stats[j] += tmp[j];922 }923 924 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)925 *data++ = gathered_stats[j];926 927 *data++ = atomic_read(&nn->ktls_no_space);928 *data++ = atomic_read(&nn->ktls_rx_resync_req);929 *data++ = atomic_read(&nn->ktls_rx_resync_ign);930 *data++ = atomic_read(&nn->ktls_rx_resync_sent);931 932 return data;933}934 935static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs)936{937 return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4;938}939 940static u8 *941nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr)942{943 int swap_off, i;944 945 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2);946 /* If repr is true first add SWITCH_STATS_LEN and then subtract it947 * effectively swapping the RX and TX statistics (giving us the RX948 * and TX from perspective of the switch).949 */950 swap_off = repr * NN_ET_SWITCH_STATS_LEN;951 952 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++)953 ethtool_puts(&data, nfp_net_et_stats[i + swap_off].name);954 955 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++)956 ethtool_puts(&data, nfp_net_et_stats[i - swap_off].name);957 958 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++)959 ethtool_puts(&data, nfp_net_et_stats[i].name);960 961 for (i = 0; i < num_vecs; i++) {962 ethtool_sprintf(&data, "rxq_%u_pkts", i);963 ethtool_sprintf(&data, "rxq_%u_bytes", i);964 ethtool_sprintf(&data, "txq_%u_pkts", i);965 ethtool_sprintf(&data, "txq_%u_bytes", i);966 }967 968 return data;969}970 971static u64 *972nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs)973{974 unsigned int i;975 976 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++)977 *data++ = readq(mem + nfp_net_et_stats[i].off);978 979 for (i = 0; i < num_vecs; i++) {980 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));981 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);982 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));983 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);984 }985 986 return data;987}988 989static unsigned int nfp_vnic_get_tlv_stats_count(struct nfp_net *nn)990{991 return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4;992}993 994static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data)995{996 unsigned int i, id;997 u8 __iomem *mem;998 u64 id_word = 0;999 1000 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off;1001 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) {1002 if (!(i % 4))1003 id_word = readq(mem + i * 2);1004 1005 id = (u16)id_word;1006 id_word >>= 16;1007 1008 if (id < ARRAY_SIZE(nfp_tlv_stat_names) &&1009 nfp_tlv_stat_names[id][0]) {1010 memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN);1011 data += ETH_GSTRING_LEN;1012 } else {1013 ethtool_sprintf(&data, "dev_unknown_stat%u", id);1014 }1015 }1016 1017 for (i = 0; i < nn->max_r_vecs; i++) {1018 ethtool_sprintf(&data, "rxq_%u_pkts", i);1019 ethtool_sprintf(&data, "rxq_%u_bytes", i);1020 ethtool_sprintf(&data, "txq_%u_pkts", i);1021 ethtool_sprintf(&data, "txq_%u_bytes", i);1022 }1023 1024 return data;1025}1026 1027static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data)1028{1029 u8 __iomem *mem;1030 unsigned int i;1031 1032 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off;1033 mem += roundup(2 * nn->tlv_caps.vnic_stats_cnt, 8);1034 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++)1035 *data++ = readq(mem + i * 8);1036 1037 mem = nn->dp.ctrl_bar;1038 for (i = 0; i < nn->max_r_vecs; i++) {1039 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));1040 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);1041 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));1042 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);1043 }1044 1045 return data;1046}1047 1048static unsigned int nfp_mac_get_stats_count(struct net_device *netdev)1049{1050 struct nfp_port *port;1051 1052 port = nfp_port_from_netdev(netdev);1053 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)1054 return 0;1055 1056 return ARRAY_SIZE(nfp_mac_et_stats);1057}1058 1059static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data)1060{1061 struct nfp_port *port;1062 unsigned int i;1063 1064 port = nfp_port_from_netdev(netdev);1065 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)1066 return data;1067 1068 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)1069 ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name);1070 1071 return data;1072}1073 1074static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data)1075{1076 struct nfp_port *port;1077 unsigned int i;1078 1079 port = nfp_port_from_netdev(netdev);1080 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)1081 return data;1082 1083 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)1084 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off);1085 1086 return data;1087}1088 1089static void nfp_net_get_strings(struct net_device *netdev,1090 u32 stringset, u8 *data)1091{1092 struct nfp_net *nn = netdev_priv(netdev);1093 1094 switch (stringset) {1095 case ETH_SS_STATS:1096 data = nfp_vnic_get_sw_stats_strings(netdev, data);1097 if (!nn->tlv_caps.vnic_stats_off)1098 data = nfp_vnic_get_hw_stats_strings(data,1099 nn->max_r_vecs,1100 false);1101 else1102 data = nfp_vnic_get_tlv_stats_strings(nn, data);1103 data = nfp_mac_get_stats_strings(netdev, data);1104 data = nfp_app_port_get_stats_strings(nn->port, data);1105 break;1106 case ETH_SS_TEST:1107 nfp_get_self_test_strings(netdev, data);1108 break;1109 }1110}1111 1112static void1113nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,1114 u64 *data)1115{1116 struct nfp_net *nn = netdev_priv(netdev);1117 1118 data = nfp_vnic_get_sw_stats(netdev, data);1119 if (!nn->tlv_caps.vnic_stats_off)1120 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,1121 nn->max_r_vecs);1122 else1123 data = nfp_vnic_get_tlv_stats(nn, data);1124 data = nfp_mac_get_stats(netdev, data);1125 data = nfp_app_port_get_stats(nn->port, data);1126}1127 1128static int nfp_net_get_sset_count(struct net_device *netdev, int sset)1129{1130 struct nfp_net *nn = netdev_priv(netdev);1131 unsigned int cnt;1132 1133 switch (sset) {1134 case ETH_SS_STATS:1135 cnt = nfp_vnic_get_sw_stats_count(netdev);1136 if (!nn->tlv_caps.vnic_stats_off)1137 cnt += nfp_vnic_get_hw_stats_count(nn->max_r_vecs);1138 else1139 cnt += nfp_vnic_get_tlv_stats_count(nn);1140 cnt += nfp_mac_get_stats_count(netdev);1141 cnt += nfp_app_port_get_stats_count(nn->port);1142 return cnt;1143 case ETH_SS_TEST:1144 return nfp_get_self_test_count(netdev);1145 default:1146 return -EOPNOTSUPP;1147 }1148}1149 1150static void nfp_port_get_strings(struct net_device *netdev,1151 u32 stringset, u8 *data)1152{1153 struct nfp_port *port = nfp_port_from_netdev(netdev);1154 1155 switch (stringset) {1156 case ETH_SS_STATS:1157 if (nfp_port_is_vnic(port))1158 data = nfp_vnic_get_hw_stats_strings(data, 0, true);1159 else1160 data = nfp_mac_get_stats_strings(netdev, data);1161 data = nfp_app_port_get_stats_strings(port, data);1162 break;1163 case ETH_SS_TEST:1164 nfp_get_self_test_strings(netdev, data);1165 break;1166 }1167}1168 1169static void1170nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,1171 u64 *data)1172{1173 struct nfp_port *port = nfp_port_from_netdev(netdev);1174 1175 if (nfp_port_is_vnic(port))1176 data = nfp_vnic_get_hw_stats(data, port->vnic, 0);1177 else1178 data = nfp_mac_get_stats(netdev, data);1179 data = nfp_app_port_get_stats(port, data);1180}1181 1182static int nfp_port_get_sset_count(struct net_device *netdev, int sset)1183{1184 struct nfp_port *port = nfp_port_from_netdev(netdev);1185 unsigned int count;1186 1187 switch (sset) {1188 case ETH_SS_STATS:1189 if (nfp_port_is_vnic(port))1190 count = nfp_vnic_get_hw_stats_count(0);1191 else1192 count = nfp_mac_get_stats_count(netdev);1193 count += nfp_app_port_get_stats_count(port);1194 return count;1195 case ETH_SS_TEST:1196 return nfp_get_self_test_count(netdev);1197 default:1198 return -EOPNOTSUPP;1199 }1200}1201 1202static int nfp_port_fec_ethtool_to_nsp(u32 fec)1203{1204 switch (fec) {1205 case ETHTOOL_FEC_AUTO:1206 return NFP_FEC_AUTO_BIT;1207 case ETHTOOL_FEC_OFF:1208 return NFP_FEC_DISABLED_BIT;1209 case ETHTOOL_FEC_RS:1210 return NFP_FEC_REED_SOLOMON_BIT;1211 case ETHTOOL_FEC_BASER:1212 return NFP_FEC_BASER_BIT;1213 default:1214 /* NSP only supports a single mode at a time */1215 return -EOPNOTSUPP;1216 }1217}1218 1219static u32 nfp_port_fec_nsp_to_ethtool(u32 fec)1220{1221 u32 result = 0;1222 1223 if (fec & NFP_FEC_AUTO)1224 result |= ETHTOOL_FEC_AUTO;1225 if (fec & NFP_FEC_BASER)1226 result |= ETHTOOL_FEC_BASER;1227 if (fec & NFP_FEC_REED_SOLOMON)1228 result |= ETHTOOL_FEC_RS;1229 if (fec & NFP_FEC_DISABLED)1230 result |= ETHTOOL_FEC_OFF;1231 1232 return result ?: ETHTOOL_FEC_NONE;1233}1234 1235static int1236nfp_port_get_fecparam(struct net_device *netdev,1237 struct ethtool_fecparam *param)1238{1239 struct nfp_eth_table_port *eth_port;1240 struct nfp_port *port;1241 1242 param->active_fec = ETHTOOL_FEC_NONE;1243 param->fec = ETHTOOL_FEC_NONE;1244 1245 port = nfp_port_from_netdev(netdev);1246 eth_port = nfp_port_get_eth_port(port);1247 if (!eth_port)1248 return -EOPNOTSUPP;1249 1250 if (!nfp_eth_can_support_fec(eth_port))1251 return 0;1252 1253 param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported);1254 param->active_fec = nfp_port_fec_nsp_to_ethtool(BIT(eth_port->act_fec));1255 1256 return 0;1257}1258 1259static int1260nfp_port_set_fecparam(struct net_device *netdev,1261 struct ethtool_fecparam *param)1262{1263 struct nfp_eth_table_port *eth_port;1264 struct nfp_port *port;1265 int err, fec;1266 1267 port = nfp_port_from_netdev(netdev);1268 eth_port = nfp_port_get_eth_port(port);1269 if (!eth_port)1270 return -EOPNOTSUPP;1271 1272 if (!nfp_eth_can_support_fec(eth_port))1273 return -EOPNOTSUPP;1274 1275 fec = nfp_port_fec_ethtool_to_nsp(param->fec);1276 if (fec < 0)1277 return fec;1278 1279 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec);1280 if (!err)1281 /* Only refresh if we did something */1282 nfp_net_refresh_port_table(port);1283 1284 return err < 0 ? err : 0;1285}1286 1287/* RX network flow classification (RSS, filters, etc)1288 */1289static u32 ethtool_flow_to_nfp_flag(u32 flow_type)1290{1291 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = {1292 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP,1293 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP,1294 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP,1295 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP,1296 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4,1297 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6,1298 };1299 1300 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp))1301 return 0;1302 1303 return xlate_ethtool_to_nfp[flow_type];1304}1305 1306static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,1307 struct ethtool_rxnfc *cmd)1308{1309 u32 nfp_rss_flag;1310 1311 cmd->data = 0;1312 1313 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))1314 return -EOPNOTSUPP;1315 1316 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);1317 if (!nfp_rss_flag)1318 return -EINVAL;1319 1320 cmd->data |= RXH_IP_SRC | RXH_IP_DST;1321 if (nn->rss_cfg & nfp_rss_flag)1322 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;1323 1324 return 0;1325}1326 1327#define NFP_FS_MAX_ENTRY 10241328 1329static int nfp_net_fs_to_ethtool(struct nfp_fs_entry *entry, struct ethtool_rxnfc *cmd)1330{1331 struct ethtool_rx_flow_spec *fs = &cmd->fs;1332 unsigned int i;1333 1334 switch (entry->flow_type & ~FLOW_RSS) {1335 case TCP_V4_FLOW:1336 case UDP_V4_FLOW:1337 case SCTP_V4_FLOW:1338 fs->h_u.tcp_ip4_spec.ip4src = entry->key.sip4;1339 fs->h_u.tcp_ip4_spec.ip4dst = entry->key.dip4;1340 fs->h_u.tcp_ip4_spec.psrc = entry->key.sport;1341 fs->h_u.tcp_ip4_spec.pdst = entry->key.dport;1342 fs->m_u.tcp_ip4_spec.ip4src = entry->msk.sip4;1343 fs->m_u.tcp_ip4_spec.ip4dst = entry->msk.dip4;1344 fs->m_u.tcp_ip4_spec.psrc = entry->msk.sport;1345 fs->m_u.tcp_ip4_spec.pdst = entry->msk.dport;1346 break;1347 case TCP_V6_FLOW:1348 case UDP_V6_FLOW:1349 case SCTP_V6_FLOW:1350 for (i = 0; i < 4; i++) {1351 fs->h_u.tcp_ip6_spec.ip6src[i] = entry->key.sip6[i];1352 fs->h_u.tcp_ip6_spec.ip6dst[i] = entry->key.dip6[i];1353 fs->m_u.tcp_ip6_spec.ip6src[i] = entry->msk.sip6[i];1354 fs->m_u.tcp_ip6_spec.ip6dst[i] = entry->msk.dip6[i];1355 }1356 fs->h_u.tcp_ip6_spec.psrc = entry->key.sport;1357 fs->h_u.tcp_ip6_spec.pdst = entry->key.dport;1358 fs->m_u.tcp_ip6_spec.psrc = entry->msk.sport;1359 fs->m_u.tcp_ip6_spec.pdst = entry->msk.dport;1360 break;1361 case IPV4_USER_FLOW:1362 fs->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;1363 fs->h_u.usr_ip4_spec.ip4src = entry->key.sip4;1364 fs->h_u.usr_ip4_spec.ip4dst = entry->key.dip4;1365 fs->h_u.usr_ip4_spec.proto = entry->key.l4_proto;1366 fs->m_u.usr_ip4_spec.ip4src = entry->msk.sip4;1367 fs->m_u.usr_ip4_spec.ip4dst = entry->msk.dip4;1368 fs->m_u.usr_ip4_spec.proto = entry->msk.l4_proto;1369 break;1370 case IPV6_USER_FLOW:1371 for (i = 0; i < 4; i++) {1372 fs->h_u.usr_ip6_spec.ip6src[i] = entry->key.sip6[i];1373 fs->h_u.usr_ip6_spec.ip6dst[i] = entry->key.dip6[i];1374 fs->m_u.usr_ip6_spec.ip6src[i] = entry->msk.sip6[i];1375 fs->m_u.usr_ip6_spec.ip6dst[i] = entry->msk.dip6[i];1376 }1377 fs->h_u.usr_ip6_spec.l4_proto = entry->key.l4_proto;1378 fs->m_u.usr_ip6_spec.l4_proto = entry->msk.l4_proto;1379 break;1380 case ETHER_FLOW:1381 fs->h_u.ether_spec.h_proto = entry->key.l3_proto;1382 fs->m_u.ether_spec.h_proto = entry->msk.l3_proto;1383 break;1384 default:1385 return -EINVAL;1386 }1387 1388 fs->flow_type = entry->flow_type;1389 fs->ring_cookie = entry->action;1390 1391 if (fs->flow_type & FLOW_RSS) {1392 /* Only rss_context of 0 is supported. */1393 cmd->rss_context = 0;1394 /* RSS is used, mask the ring. */1395 fs->ring_cookie |= ETHTOOL_RX_FLOW_SPEC_RING;1396 }1397 1398 return 0;1399}1400 1401static int nfp_net_get_fs_rule(struct nfp_net *nn, struct ethtool_rxnfc *cmd)1402{1403 struct nfp_fs_entry *entry;1404 1405 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))1406 return -EOPNOTSUPP;1407 1408 if (cmd->fs.location >= NFP_FS_MAX_ENTRY)1409 return -EINVAL;1410 1411 list_for_each_entry(entry, &nn->fs.list, node) {1412 if (entry->loc == cmd->fs.location)1413 return nfp_net_fs_to_ethtool(entry, cmd);1414 1415 if (entry->loc > cmd->fs.location)1416 /* no need to continue */1417 return -ENOENT;1418 }1419 1420 return -ENOENT;1421}1422 1423static int nfp_net_get_fs_loc(struct nfp_net *nn, u32 *rule_locs)1424{1425 struct nfp_fs_entry *entry;1426 u32 count = 0;1427 1428 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))1429 return -EOPNOTSUPP;1430 1431 list_for_each_entry(entry, &nn->fs.list, node)1432 rule_locs[count++] = entry->loc;1433 1434 return 0;1435}1436 1437static int nfp_net_get_rxnfc(struct net_device *netdev,1438 struct ethtool_rxnfc *cmd, u32 *rule_locs)1439{1440 struct nfp_net *nn = netdev_priv(netdev);1441 1442 switch (cmd->cmd) {1443 case ETHTOOL_GRXRINGS:1444 cmd->data = nn->dp.num_rx_rings;1445 return 0;1446 case ETHTOOL_GRXCLSRLCNT:1447 cmd->rule_cnt = nn->fs.count;1448 return 0;1449 case ETHTOOL_GRXCLSRULE:1450 return nfp_net_get_fs_rule(nn, cmd);1451 case ETHTOOL_GRXCLSRLALL:1452 cmd->data = NFP_FS_MAX_ENTRY;1453 return nfp_net_get_fs_loc(nn, rule_locs);1454 case ETHTOOL_GRXFH:1455 return nfp_net_get_rss_hash_opts(nn, cmd);1456 default:1457 return -EOPNOTSUPP;1458 }1459}1460 1461static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,1462 struct ethtool_rxnfc *nfc)1463{1464 u32 new_rss_cfg = nn->rss_cfg;1465 u32 nfp_rss_flag;1466 int err;1467 1468 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))1469 return -EOPNOTSUPP;1470 1471 /* RSS only supports IP SA/DA and L4 src/dst ports */1472 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |1473 RXH_L4_B_0_1 | RXH_L4_B_2_3))1474 return -EINVAL;1475 1476 /* We need at least the IP SA/DA fields for hashing */1477 if (!(nfc->data & RXH_IP_SRC) ||1478 !(nfc->data & RXH_IP_DST))1479 return -EINVAL;1480 1481 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type);1482 if (!nfp_rss_flag)1483 return -EINVAL;1484 1485 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {1486 case 0:1487 new_rss_cfg &= ~nfp_rss_flag;1488 break;1489 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):1490 new_rss_cfg |= nfp_rss_flag;1491 break;1492 default:1493 return -EINVAL;1494 }1495 1496 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc);1497 new_rss_cfg |= NFP_NET_CFG_RSS_MASK;1498 1499 if (new_rss_cfg == nn->rss_cfg)1500 return 0;1501 1502 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL);1503 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);1504 if (err)1505 return err;1506 1507 nn->rss_cfg = new_rss_cfg;1508 1509 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg);1510 return 0;1511}1512 1513static int nfp_net_fs_from_ethtool(struct nfp_fs_entry *entry, struct ethtool_rx_flow_spec *fs)1514{1515 unsigned int i;1516 1517 /* FLOW_EXT/FLOW_MAC_EXT is not supported. */1518 switch (fs->flow_type & ~FLOW_RSS) {1519 case TCP_V4_FLOW:1520 case UDP_V4_FLOW:1521 case SCTP_V4_FLOW:1522 entry->msk.sip4 = fs->m_u.tcp_ip4_spec.ip4src;1523 entry->msk.dip4 = fs->m_u.tcp_ip4_spec.ip4dst;1524 entry->msk.sport = fs->m_u.tcp_ip4_spec.psrc;1525 entry->msk.dport = fs->m_u.tcp_ip4_spec.pdst;1526 entry->key.sip4 = fs->h_u.tcp_ip4_spec.ip4src & entry->msk.sip4;1527 entry->key.dip4 = fs->h_u.tcp_ip4_spec.ip4dst & entry->msk.dip4;1528 entry->key.sport = fs->h_u.tcp_ip4_spec.psrc & entry->msk.sport;1529 entry->key.dport = fs->h_u.tcp_ip4_spec.pdst & entry->msk.dport;1530 break;1531 case TCP_V6_FLOW:1532 case UDP_V6_FLOW:1533 case SCTP_V6_FLOW:1534 for (i = 0; i < 4; i++) {1535 entry->msk.sip6[i] = fs->m_u.tcp_ip6_spec.ip6src[i];1536 entry->msk.dip6[i] = fs->m_u.tcp_ip6_spec.ip6dst[i];1537 entry->key.sip6[i] = fs->h_u.tcp_ip6_spec.ip6src[i] & entry->msk.sip6[i];1538 entry->key.dip6[i] = fs->h_u.tcp_ip6_spec.ip6dst[i] & entry->msk.dip6[i];1539 }1540 entry->msk.sport = fs->m_u.tcp_ip6_spec.psrc;1541 entry->msk.dport = fs->m_u.tcp_ip6_spec.pdst;1542 entry->key.sport = fs->h_u.tcp_ip6_spec.psrc & entry->msk.sport;1543 entry->key.dport = fs->h_u.tcp_ip6_spec.pdst & entry->msk.dport;1544 break;1545 case IPV4_USER_FLOW:1546 entry->msk.sip4 = fs->m_u.usr_ip4_spec.ip4src;1547 entry->msk.dip4 = fs->m_u.usr_ip4_spec.ip4dst;1548 entry->msk.l4_proto = fs->m_u.usr_ip4_spec.proto;1549 entry->key.sip4 = fs->h_u.usr_ip4_spec.ip4src & entry->msk.sip4;1550 entry->key.dip4 = fs->h_u.usr_ip4_spec.ip4dst & entry->msk.dip4;1551 entry->key.l4_proto = fs->h_u.usr_ip4_spec.proto & entry->msk.l4_proto;1552 break;1553 case IPV6_USER_FLOW:1554 for (i = 0; i < 4; i++) {1555 entry->msk.sip6[i] = fs->m_u.usr_ip6_spec.ip6src[i];1556 entry->msk.dip6[i] = fs->m_u.usr_ip6_spec.ip6dst[i];1557 entry->key.sip6[i] = fs->h_u.usr_ip6_spec.ip6src[i] & entry->msk.sip6[i];1558 entry->key.dip6[i] = fs->h_u.usr_ip6_spec.ip6dst[i] & entry->msk.dip6[i];1559 }1560 entry->msk.l4_proto = fs->m_u.usr_ip6_spec.l4_proto;1561 entry->key.l4_proto = fs->h_u.usr_ip6_spec.l4_proto & entry->msk.l4_proto;1562 break;1563 case ETHER_FLOW:1564 entry->msk.l3_proto = fs->m_u.ether_spec.h_proto;1565 entry->key.l3_proto = fs->h_u.ether_spec.h_proto & entry->msk.l3_proto;1566 break;1567 default:1568 return -EINVAL;1569 }1570 1571 switch (fs->flow_type & ~FLOW_RSS) {1572 case TCP_V4_FLOW:1573 case TCP_V6_FLOW:1574 entry->key.l4_proto = IPPROTO_TCP;1575 entry->msk.l4_proto = 0xff;1576 break;1577 case UDP_V4_FLOW:1578 case UDP_V6_FLOW:1579 entry->key.l4_proto = IPPROTO_UDP;1580 entry->msk.l4_proto = 0xff;1581 break;1582 case SCTP_V4_FLOW:1583 case SCTP_V6_FLOW:1584 entry->key.l4_proto = IPPROTO_SCTP;1585 entry->msk.l4_proto = 0xff;1586 break;1587 }1588 1589 entry->flow_type = fs->flow_type;1590 entry->action = fs->ring_cookie;1591 entry->loc = fs->location;1592 1593 return 0;1594}1595 1596static int nfp_net_fs_check_existing(struct nfp_net *nn, struct nfp_fs_entry *new)1597{1598 struct nfp_fs_entry *entry;1599 1600 list_for_each_entry(entry, &nn->fs.list, node) {1601 if (new->loc != entry->loc &&1602 !((new->flow_type ^ entry->flow_type) & ~FLOW_RSS) &&1603 !memcmp(&new->key, &entry->key, sizeof(new->key)) &&1604 !memcmp(&new->msk, &entry->msk, sizeof(new->msk)))1605 return entry->loc;1606 }1607 1608 /* -1 means no duplicates */1609 return -1;1610}1611 1612static int nfp_net_fs_add(struct nfp_net *nn, struct ethtool_rxnfc *cmd)1613{1614 struct ethtool_rx_flow_spec *fs = &cmd->fs;1615 struct nfp_fs_entry *new, *entry;1616 bool unsupp_mask;1617 int err, id;1618 1619 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))1620 return -EOPNOTSUPP;1621 1622 /* Only default RSS context(0) is supported. */1623 if ((fs->flow_type & FLOW_RSS) && cmd->rss_context)1624 return -EOPNOTSUPP;1625 1626 if (fs->location >= NFP_FS_MAX_ENTRY)1627 return -EINVAL;1628 1629 if (fs->ring_cookie != RX_CLS_FLOW_DISC &&1630 fs->ring_cookie >= nn->dp.num_rx_rings)1631 return -EINVAL;1632 1633 /* FLOW_EXT/FLOW_MAC_EXT is not supported. */1634 switch (fs->flow_type & ~FLOW_RSS) {1635 case TCP_V4_FLOW:1636 case UDP_V4_FLOW:1637 case SCTP_V4_FLOW:1638 unsupp_mask = !!fs->m_u.tcp_ip4_spec.tos;1639 break;1640 case TCP_V6_FLOW:1641 case UDP_V6_FLOW:1642 case SCTP_V6_FLOW:1643 unsupp_mask = !!fs->m_u.tcp_ip6_spec.tclass;1644 break;1645 case IPV4_USER_FLOW:1646 unsupp_mask = !!fs->m_u.usr_ip4_spec.l4_4_bytes ||1647 !!fs->m_u.usr_ip4_spec.tos ||1648 !!fs->m_u.usr_ip4_spec.ip_ver;1649 /* ip_ver must be ETH_RX_NFC_IP4. */1650 unsupp_mask |= fs->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4;1651 break;1652 case IPV6_USER_FLOW:1653 unsupp_mask = !!fs->m_u.usr_ip6_spec.l4_4_bytes ||1654 !!fs->m_u.usr_ip6_spec.tclass;1655 break;1656 case ETHER_FLOW:1657 if (fs->h_u.ether_spec.h_proto == htons(ETH_P_IP) ||1658 fs->h_u.ether_spec.h_proto == htons(ETH_P_IPV6)) {1659 nn_err(nn, "Please use ip4/ip6 flow type instead.\n");1660 return -EOPNOTSUPP;1661 }1662 /* Only unmasked ethtype is supported. */1663 unsupp_mask = !is_zero_ether_addr(fs->m_u.ether_spec.h_dest) ||1664 !is_zero_ether_addr(fs->m_u.ether_spec.h_source) ||1665 (fs->m_u.ether_spec.h_proto != htons(0xffff));1666 break;1667 default:1668 return -EOPNOTSUPP;1669 }1670 1671 if (unsupp_mask)1672 return -EOPNOTSUPP;1673 1674 new = kzalloc(sizeof(*new), GFP_KERNEL);1675 if (!new)1676 return -ENOMEM;1677 1678 nfp_net_fs_from_ethtool(new, fs);1679 1680 id = nfp_net_fs_check_existing(nn, new);1681 if (id >= 0) {1682 nn_err(nn, "Identical rule is existing in %d.\n", id);1683 err = -EINVAL;1684 goto err;1685 }1686 1687 /* Insert to list in ascending order of location. */1688 list_for_each_entry(entry, &nn->fs.list, node) {1689 if (entry->loc == fs->location) {1690 err = nfp_net_fs_del_hw(nn, entry);1691 if (err)1692 goto err;1693 1694 nn->fs.count--;1695 err = nfp_net_fs_add_hw(nn, new);1696 if (err)1697 goto err;1698 1699 nn->fs.count++;1700 list_replace(&entry->node, &new->node);1701 kfree(entry);1702 1703 return 0;1704 }1705 1706 if (entry->loc > fs->location)1707 break;1708 }1709 1710 if (nn->fs.count == NFP_FS_MAX_ENTRY) {1711 err = -ENOSPC;1712 goto err;1713 }1714 1715 err = nfp_net_fs_add_hw(nn, new);1716 if (err)1717 goto err;1718 1719 list_add_tail(&new->node, &entry->node);1720 nn->fs.count++;1721 1722 return 0;1723 1724err:1725 kfree(new);1726 return err;1727}1728 1729static int nfp_net_fs_del(struct nfp_net *nn, struct ethtool_rxnfc *cmd)1730{1731 struct nfp_fs_entry *entry;1732 int err;1733 1734 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER))1735 return -EOPNOTSUPP;1736 1737 if (!nn->fs.count || cmd->fs.location >= NFP_FS_MAX_ENTRY)1738 return -EINVAL;1739 1740 list_for_each_entry(entry, &nn->fs.list, node) {1741 if (entry->loc == cmd->fs.location) {1742 err = nfp_net_fs_del_hw(nn, entry);1743 if (err)1744 return err;1745 1746 list_del(&entry->node);1747 kfree(entry);1748 nn->fs.count--;1749 1750 return 0;1751 } else if (entry->loc > cmd->fs.location) {1752 /* no need to continue */1753 break;1754 }1755 }1756 1757 return -ENOENT;1758}1759 1760static int nfp_net_set_rxnfc(struct net_device *netdev,1761 struct ethtool_rxnfc *cmd)1762{1763 struct nfp_net *nn = netdev_priv(netdev);1764 1765 switch (cmd->cmd) {1766 case ETHTOOL_SRXFH:1767 return nfp_net_set_rss_hash_opt(nn, cmd);1768 case ETHTOOL_SRXCLSRLINS:1769 return nfp_net_fs_add(nn, cmd);1770 case ETHTOOL_SRXCLSRLDEL:1771 return nfp_net_fs_del(nn, cmd);1772 default:1773 return -EOPNOTSUPP;1774 }1775}1776 1777static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)1778{1779 struct nfp_net *nn = netdev_priv(netdev);1780 1781 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))1782 return 0;1783 1784 return ARRAY_SIZE(nn->rss_itbl);1785}1786 1787static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)1788{1789 struct nfp_net *nn = netdev_priv(netdev);1790 1791 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))1792 return -EOPNOTSUPP;1793 1794 return nfp_net_rss_key_sz(nn);1795}1796 1797static int nfp_net_get_rxfh(struct net_device *netdev,1798 struct ethtool_rxfh_param *rxfh)1799{1800 struct nfp_net *nn = netdev_priv(netdev);1801 int i;1802 1803 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))1804 return -EOPNOTSUPP;1805 1806 if (rxfh->indir)1807 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)1808 rxfh->indir[i] = nn->rss_itbl[i];1809 if (rxfh->key)1810 memcpy(rxfh->key, nn->rss_key, nfp_net_rss_key_sz(nn));1811 1812 rxfh->hfunc = nn->rss_hfunc;1813 if (rxfh->hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)1814 rxfh->hfunc = ETH_RSS_HASH_UNKNOWN;1815 1816 return 0;1817}1818 1819static int nfp_net_set_rxfh(struct net_device *netdev,1820 struct ethtool_rxfh_param *rxfh,1821 struct netlink_ext_ack *extack)1822{1823 struct nfp_net *nn = netdev_priv(netdev);1824 int i;1825 1826 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||1827 !(rxfh->hfunc == ETH_RSS_HASH_NO_CHANGE ||1828 rxfh->hfunc == nn->rss_hfunc))1829 return -EOPNOTSUPP;1830 1831 if (!rxfh->key && !rxfh->indir)1832 return 0;1833 1834 if (rxfh->key) {1835 memcpy(nn->rss_key, rxfh->key, nfp_net_rss_key_sz(nn));1836 nfp_net_rss_write_key(nn);1837 }1838 if (rxfh->indir) {1839 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)1840 nn->rss_itbl[i] = rxfh->indir[i];1841 1842 nfp_net_rss_write_itbl(nn);1843 }1844 1845 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);1846}1847 1848/* Dump BAR registers1849 */1850static int nfp_net_get_regs_len(struct net_device *netdev)1851{1852 return NFP_NET_CFG_BAR_SZ;1853}1854 1855static void nfp_net_get_regs(struct net_device *netdev,1856 struct ethtool_regs *regs, void *p)1857{1858 struct nfp_net *nn = netdev_priv(netdev);1859 u32 *regs_buf = p;1860 int i;1861 1862 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION);1863 1864 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++)1865 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32)));1866}1867 1868static int nfp_net_get_coalesce(struct net_device *netdev,1869 struct ethtool_coalesce *ec,1870 struct kernel_ethtool_coalesce *kernel_coal,1871 struct netlink_ext_ack *extack)1872{1873 struct nfp_net *nn = netdev_priv(netdev);1874 1875 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))1876 return -EOPNOTSUPP;1877 1878 ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on;1879 ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on;1880 1881 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs;1882 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames;1883 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs;1884 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames;1885 1886 return 0;1887}1888 1889/* Other debug dumps1890 */1891static int1892nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer)1893{1894 struct nfp_resource *res;1895 int ret;1896 1897 if (!app)1898 return -EOPNOTSUPP;1899 1900 dump->version = 1;1901 dump->flag = NFP_DUMP_NSP_DIAG;1902 1903 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG);1904 if (IS_ERR(res))1905 return PTR_ERR(res);1906 1907 if (buffer) {1908 if (dump->len != nfp_resource_size(res)) {1909 ret = -EINVAL;1910 goto exit_release;1911 }1912 1913 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res),1914 nfp_resource_address(res),1915 buffer, dump->len);1916 if (ret != dump->len)1917 ret = ret < 0 ? ret : -EIO;1918 else1919 ret = 0;1920 } else {1921 dump->len = nfp_resource_size(res);1922 ret = 0;1923 }1924exit_release:1925 nfp_resource_release(res);1926 1927 return ret;1928}1929 1930/* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV1931 * based dumps), since flag 0 (default) calculates the length in1932 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump1933 * without setting the flag first, for backward compatibility.1934 */1935static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)1936{1937 struct nfp_app *app = nfp_app_from_netdev(netdev);1938 s64 len;1939 1940 if (!app)1941 return -EOPNOTSUPP;1942 1943 if (val->flag == NFP_DUMP_NSP_DIAG) {1944 app->pf->dump_flag = val->flag;1945 return 0;1946 }1947 1948 if (!app->pf->dumpspec)1949 return -EOPNOTSUPP;1950 1951 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec,1952 val->flag);1953 if (len < 0)1954 return len;1955 1956 app->pf->dump_flag = val->flag;1957 app->pf->dump_len = len;1958 1959 return 0;1960}1961 1962static int1963nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)1964{1965 struct nfp_app *app = nfp_app_from_netdev(netdev);1966 1967 if (!app)1968 return -EOPNOTSUPP;1969 1970 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)1971 return nfp_dump_nsp_diag(app, dump, NULL);1972 1973 dump->flag = app->pf->dump_flag;1974 dump->len = app->pf->dump_len;1975 1976 return 0;1977}1978 1979static int1980nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,1981 void *buffer)1982{1983 struct nfp_app *app = nfp_app_from_netdev(netdev);1984 1985 if (!app)1986 return -EOPNOTSUPP;1987 1988 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)1989 return nfp_dump_nsp_diag(app, dump, buffer);1990 1991 dump->flag = app->pf->dump_flag;1992 dump->len = app->pf->dump_len;1993 1994 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump,1995 buffer);1996}1997 1998static int1999nfp_port_get_module_info(struct net_device *netdev,2000 struct ethtool_modinfo *modinfo)2001{2002 struct nfp_eth_table_port *eth_port;2003 struct nfp_port *port;2004 unsigned int read_len;2005 struct nfp_nsp *nsp;2006 int err = 0;2007 u8 data;2008 2009 port = nfp_port_from_netdev(netdev);2010 if (!port)2011 return -EOPNOTSUPP;2012 2013 /* update port state to get latest interface */2014 set_bit(NFP_PORT_CHANGED, &port->flags);2015 eth_port = nfp_port_get_eth_port(port);2016 if (!eth_port)2017 return -EOPNOTSUPP;2018 2019 nsp = nfp_nsp_open(port->app->cpp);2020 if (IS_ERR(nsp)) {2021 err = PTR_ERR(nsp);2022 netdev_err(netdev, "Failed to access the NSP: %d\n", err);2023 return err;2024 }2025 2026 if (!nfp_nsp_has_read_module_eeprom(nsp)) {2027 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");2028 err = -EOPNOTSUPP;2029 goto exit_close_nsp;2030 }2031 2032 switch (eth_port->interface) {2033 case NFP_INTERFACE_SFP:2034 case NFP_INTERFACE_SFP28:2035 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,2036 SFP_SFF8472_COMPLIANCE, &data,2037 1, &read_len);2038 if (err < 0)2039 goto exit_close_nsp;2040 2041 if (!data) {2042 modinfo->type = ETH_MODULE_SFF_8079;2043 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;2044 } else {2045 modinfo->type = ETH_MODULE_SFF_8472;2046 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;2047 }2048 break;2049 case NFP_INTERFACE_QSFP:2050 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,2051 SFP_SFF_REV_COMPLIANCE, &data,2052 1, &read_len);2053 if (err < 0)2054 goto exit_close_nsp;2055 2056 if (data < 0x3) {2057 modinfo->type = ETH_MODULE_SFF_8436;2058 modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;2059 } else {2060 modinfo->type = ETH_MODULE_SFF_8636;2061 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;2062 }2063 break;2064 case NFP_INTERFACE_QSFP28:2065 modinfo->type = ETH_MODULE_SFF_8636;2066 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;2067 break;2068 default:2069 netdev_err(netdev, "Unsupported module 0x%x detected\n",2070 eth_port->interface);2071 err = -EINVAL;2072 }2073 2074exit_close_nsp:2075 nfp_nsp_close(nsp);2076 return err;2077}2078 2079static int2080nfp_port_get_module_eeprom(struct net_device *netdev,2081 struct ethtool_eeprom *eeprom, u8 *data)2082{2083 struct nfp_eth_table_port *eth_port;2084 struct nfp_port *port;2085 struct nfp_nsp *nsp;2086 int err;2087 2088 port = nfp_port_from_netdev(netdev);2089 eth_port = __nfp_port_get_eth_port(port);2090 if (!eth_port)2091 return -EOPNOTSUPP;2092 2093 nsp = nfp_nsp_open(port->app->cpp);2094 if (IS_ERR(nsp)) {2095 err = PTR_ERR(nsp);2096 netdev_err(netdev, "Failed to access the NSP: %d\n", err);2097 return err;2098 }2099 2100 if (!nfp_nsp_has_read_module_eeprom(nsp)) {2101 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");2102 err = -EOPNOTSUPP;2103 goto exit_close_nsp;2104 }2105 2106 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,2107 eeprom->offset, data, eeprom->len,2108 &eeprom->len);2109 if (err < 0) {2110 if (eeprom->len) {2111 netdev_warn(netdev,2112 "Incomplete read from module EEPROM: %d\n",2113 err);2114 err = 0;2115 } else {2116 netdev_err(netdev,2117 "Reading from module EEPROM failed: %d\n",2118 err);2119 }2120 }2121 2122exit_close_nsp:2123 nfp_nsp_close(nsp);2124 return err;2125}2126 2127static int nfp_net_set_coalesce(struct net_device *netdev,2128 struct ethtool_coalesce *ec,2129 struct kernel_ethtool_coalesce *kernel_coal,2130 struct netlink_ext_ack *extack)2131{2132 struct nfp_net *nn = netdev_priv(netdev);2133 unsigned int factor;2134 2135 /* Compute factor used to convert coalesce '_usecs' parameters to2136 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp2137 * count.2138 */2139 factor = nn->tlv_caps.me_freq_mhz / 16;2140 2141 /* Each pair of (usecs, max_frames) fields specifies that interrupts2142 * should be coalesced until2143 * (usecs > 0 && time_since_first_completion >= usecs) ||2144 * (max_frames > 0 && completed_frames >= max_frames)2145 *2146 * It is illegal to set both usecs and max_frames to zero as this would2147 * cause interrupts to never be generated. To disable coalescing, set2148 * usecs = 0 and max_frames = 1.2149 *2150 * Some implementations ignore the value of max_frames and use the2151 * condition time_since_first_completion >= usecs2152 */2153 2154 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))2155 return -EOPNOTSUPP;2156 2157 /* ensure valid configuration */2158 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) {2159 NL_SET_ERR_MSG_MOD(extack,2160 "rx-usecs and rx-frames cannot both be zero");2161 return -EINVAL;2162 }2163 2164 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) {2165 NL_SET_ERR_MSG_MOD(extack,2166 "tx-usecs and tx-frames cannot both be zero");2167 return -EINVAL;2168 }2169 2170 if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor)) {2171 NL_SET_ERR_MSG_MOD(extack, "rx-usecs too large");2172 return -EINVAL;2173 }2174 2175 if (nfp_net_coalesce_para_check(ec->rx_max_coalesced_frames)) {2176 NL_SET_ERR_MSG_MOD(extack, "rx-frames too large");2177 return -EINVAL;2178 }2179 2180 if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor)) {2181 NL_SET_ERR_MSG_MOD(extack, "tx-usecs too large");2182 return -EINVAL;2183 }2184 2185 if (nfp_net_coalesce_para_check(ec->tx_max_coalesced_frames)) {2186 NL_SET_ERR_MSG_MOD(extack, "tx-frames too large");2187 return -EINVAL;2188 }2189 2190 /* configuration is valid */2191 nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce;2192 nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce;2193 2194 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs;2195 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames;2196 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs;2197 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames;2198 2199 /* write configuration to device */2200 nfp_net_coalesce_write_cfg(nn);2201 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD);2202}2203 2204static void nfp_net_get_channels(struct net_device *netdev,2205 struct ethtool_channels *channel)2206{2207 struct nfp_net *nn = netdev_priv(netdev);2208 unsigned int num_tx_rings;2209 2210 num_tx_rings = nn->dp.num_tx_rings;2211 if (nn->dp.xdp_prog)2212 num_tx_rings -= nn->dp.num_rx_rings;2213 2214 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs);2215 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs);2216 channel->max_combined = min(channel->max_rx, channel->max_tx);2217 channel->max_other = NFP_NET_NON_Q_VECTORS;2218 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings);2219 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count;2220 channel->tx_count = num_tx_rings - channel->combined_count;2221 channel->other_count = NFP_NET_NON_Q_VECTORS;2222}2223 2224static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,2225 unsigned int total_tx)2226{2227 struct nfp_net_dp *dp;2228 2229 dp = nfp_net_clone_dp(nn);2230 if (!dp)2231 return -ENOMEM;2232 2233 dp->num_rx_rings = total_rx;2234 dp->num_tx_rings = total_tx;2235 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */2236 if (dp->xdp_prog)2237 dp->num_tx_rings += total_rx;2238 2239 return nfp_net_ring_reconfig(nn, dp, NULL);2240}2241 2242static int nfp_net_set_channels(struct net_device *netdev,2243 struct ethtool_channels *channel)2244{2245 struct nfp_net *nn = netdev_priv(netdev);2246 unsigned int total_rx, total_tx;2247 2248 /* Reject unsupported */2249 if (channel->other_count != NFP_NET_NON_Q_VECTORS ||2250 (channel->rx_count && channel->tx_count))2251 return -EINVAL;2252 2253 total_rx = channel->combined_count + channel->rx_count;2254 total_tx = channel->combined_count + channel->tx_count;2255 2256 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) ||2257 total_tx > min(nn->max_tx_rings, nn->max_r_vecs))2258 return -EINVAL;2259 2260 return nfp_net_set_num_rings(nn, total_rx, total_tx);2261}2262 2263static int nfp_port_set_pauseparam(struct net_device *netdev,2264 struct ethtool_pauseparam *pause)2265{2266 struct nfp_eth_table_port *eth_port;2267 struct nfp_port *port;2268 int err;2269 2270 port = nfp_port_from_netdev(netdev);2271 eth_port = nfp_port_get_eth_port(port);2272 if (!eth_port)2273 return -EOPNOTSUPP;2274 2275 if (pause->autoneg != AUTONEG_DISABLE)2276 return -EOPNOTSUPP;2277 2278 err = nfp_eth_set_pauseparam(port->app->cpp, eth_port->index,2279 pause->tx_pause, pause->rx_pause);2280 if (!err)2281 /* Only refresh if we did something */2282 nfp_net_refresh_port_table(port);2283 2284 return err < 0 ? err : 0;2285}2286 2287static void nfp_port_get_pauseparam(struct net_device *netdev,2288 struct ethtool_pauseparam *pause)2289{2290 struct nfp_eth_table_port *eth_port;2291 struct nfp_port *port;2292 2293 port = nfp_port_from_netdev(netdev);2294 eth_port = nfp_port_get_eth_port(port);2295 if (!eth_port)2296 return;2297 2298 /* Currently pause frame autoneg is fixed */2299 pause->autoneg = AUTONEG_DISABLE;2300 pause->rx_pause = eth_port->rx_pause;2301 pause->tx_pause = eth_port->tx_pause;2302}2303 2304static int nfp_net_set_phys_id(struct net_device *netdev,2305 enum ethtool_phys_id_state state)2306{2307 struct nfp_eth_table_port *eth_port;2308 struct nfp_port *port;2309 int err;2310 2311 port = nfp_port_from_netdev(netdev);2312 eth_port = __nfp_port_get_eth_port(port);2313 if (!eth_port)2314 return -EOPNOTSUPP;2315 2316 switch (state) {2317 case ETHTOOL_ID_ACTIVE:2318 /* Control LED to blink */2319 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 1);2320 break;2321 2322 case ETHTOOL_ID_INACTIVE:2323 /* Control LED to normal mode */2324 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 0);2325 break;2326 2327 case ETHTOOL_ID_ON:2328 case ETHTOOL_ID_OFF:2329 default:2330 return -EOPNOTSUPP;2331 }2332 2333 return err;2334}2335 2336#define NFP_EEPROM_LEN ETH_ALEN2337 2338static int2339nfp_net_get_eeprom_len(struct net_device *netdev)2340{2341 struct nfp_eth_table_port *eth_port;2342 struct nfp_port *port;2343 2344 port = nfp_port_from_netdev(netdev);2345 eth_port = __nfp_port_get_eth_port(port);2346 if (!eth_port)2347 return 0;2348 2349 return NFP_EEPROM_LEN;2350}2351 2352static int2353nfp_net_get_nsp_hwindex(struct net_device *netdev,2354 struct nfp_nsp **nspptr,2355 u32 *index)2356{2357 struct nfp_eth_table_port *eth_port;2358 struct nfp_port *port;2359 struct nfp_nsp *nsp;2360 int err;2361 2362 port = nfp_port_from_netdev(netdev);2363 eth_port = __nfp_port_get_eth_port(port);2364 if (!eth_port)2365 return -EOPNOTSUPP;2366 2367 nsp = nfp_nsp_open(port->app->cpp);2368 if (IS_ERR(nsp)) {2369 err = PTR_ERR(nsp);2370 netdev_err(netdev, "Failed to access the NSP: %d\n", err);2371 return err;2372 }2373 2374 if (!nfp_nsp_has_hwinfo_lookup(nsp)) {2375 netdev_err(netdev, "NSP doesn't support PF MAC generation\n");2376 nfp_nsp_close(nsp);2377 return -EOPNOTSUPP;2378 }2379 2380 *nspptr = nsp;2381 *index = eth_port->eth_index;2382 2383 return 0;2384}2385 2386static int2387nfp_net_get_port_mac_by_hwinfo(struct net_device *netdev,2388 u8 *mac_addr)2389{2390 char hwinfo[32] = {};2391 struct nfp_nsp *nsp;2392 u32 index;2393 int err;2394 2395 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index);2396 if (err)2397 return err;2398 2399 snprintf(hwinfo, sizeof(hwinfo), "eth%u.mac", index);2400 err = nfp_nsp_hwinfo_lookup(nsp, hwinfo, sizeof(hwinfo));2401 nfp_nsp_close(nsp);2402 if (err) {2403 netdev_err(netdev, "Reading persistent MAC address failed: %d\n",2404 err);2405 return -EOPNOTSUPP;2406 }2407 2408 if (sscanf(hwinfo, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",2409 &mac_addr[0], &mac_addr[1], &mac_addr[2],2410 &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) {2411 netdev_err(netdev, "Can't parse persistent MAC address (%s)\n",2412 hwinfo);2413 return -EOPNOTSUPP;2414 }2415 2416 return 0;2417}2418 2419static int2420nfp_net_set_port_mac_by_hwinfo(struct net_device *netdev,2421 u8 *mac_addr)2422{2423 char hwinfo[32] = {};2424 struct nfp_nsp *nsp;2425 u32 index;2426 int err;2427 2428 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index);2429 if (err)2430 return err;2431 2432 snprintf(hwinfo, sizeof(hwinfo),2433 "eth%u.mac=%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",2434 index, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3],2435 mac_addr[4], mac_addr[5]);2436 2437 err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo));2438 nfp_nsp_close(nsp);2439 if (err) {2440 netdev_err(netdev, "HWinfo set failed: %d, hwinfo: %s\n",2441 err, hwinfo);2442 return -EOPNOTSUPP;2443 }2444 2445 return 0;2446}2447 2448static int2449nfp_net_get_eeprom(struct net_device *netdev,2450 struct ethtool_eeprom *eeprom, u8 *bytes)2451{2452 struct nfp_app *app = nfp_app_from_netdev(netdev);2453 u8 buf[NFP_EEPROM_LEN] = {};2454 2455 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf))2456 return -EOPNOTSUPP;2457 2458 if (eeprom->len == 0)2459 return -EINVAL;2460 2461 eeprom->magic = app->pdev->vendor | (app->pdev->device << 16);2462 memcpy(bytes, buf + eeprom->offset, eeprom->len);2463 2464 return 0;2465}2466 2467static int2468nfp_net_set_eeprom(struct net_device *netdev,2469 struct ethtool_eeprom *eeprom, u8 *bytes)2470{2471 struct nfp_app *app = nfp_app_from_netdev(netdev);2472 u8 buf[NFP_EEPROM_LEN] = {};2473 2474 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf))2475 return -EOPNOTSUPP;2476 2477 if (eeprom->len == 0)2478 return -EINVAL;2479 2480 if (eeprom->magic != (app->pdev->vendor | app->pdev->device << 16))2481 return -EINVAL;2482 2483 memcpy(buf + eeprom->offset, bytes, eeprom->len);2484 if (nfp_net_set_port_mac_by_hwinfo(netdev, buf))2485 return -EOPNOTSUPP;2486 2487 return 0;2488}2489 2490static const struct ethtool_ops nfp_net_ethtool_ops = {2491 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |2492 ETHTOOL_COALESCE_MAX_FRAMES |2493 ETHTOOL_COALESCE_USE_ADAPTIVE,2494 .get_drvinfo = nfp_net_get_drvinfo,2495 .nway_reset = nfp_net_nway_reset,2496 .get_link = ethtool_op_get_link,2497 .get_ringparam = nfp_net_get_ringparam,2498 .set_ringparam = nfp_net_set_ringparam,2499 .self_test = nfp_net_self_test,2500 .get_strings = nfp_net_get_strings,2501 .get_ethtool_stats = nfp_net_get_stats,2502 .get_sset_count = nfp_net_get_sset_count,2503 .get_rxnfc = nfp_net_get_rxnfc,2504 .set_rxnfc = nfp_net_set_rxnfc,2505 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size,2506 .get_rxfh_key_size = nfp_net_get_rxfh_key_size,2507 .get_rxfh = nfp_net_get_rxfh,2508 .set_rxfh = nfp_net_set_rxfh,2509 .get_regs_len = nfp_net_get_regs_len,2510 .get_regs = nfp_net_get_regs,2511 .set_dump = nfp_app_set_dump,2512 .get_dump_flag = nfp_app_get_dump_flag,2513 .get_dump_data = nfp_app_get_dump_data,2514 .get_eeprom_len = nfp_net_get_eeprom_len,2515 .get_eeprom = nfp_net_get_eeprom,2516 .set_eeprom = nfp_net_set_eeprom,2517 .get_module_info = nfp_port_get_module_info,2518 .get_module_eeprom = nfp_port_get_module_eeprom,2519 .get_coalesce = nfp_net_get_coalesce,2520 .set_coalesce = nfp_net_set_coalesce,2521 .get_channels = nfp_net_get_channels,2522 .set_channels = nfp_net_set_channels,2523 .get_link_ksettings = nfp_net_get_link_ksettings,2524 .set_link_ksettings = nfp_net_set_link_ksettings,2525 .get_fecparam = nfp_port_get_fecparam,2526 .set_fecparam = nfp_port_set_fecparam,2527 .set_pauseparam = nfp_port_set_pauseparam,2528 .get_pauseparam = nfp_port_get_pauseparam,2529 .set_phys_id = nfp_net_set_phys_id,2530 .get_ts_info = ethtool_op_get_ts_info,2531};2532 2533const struct ethtool_ops nfp_port_ethtool_ops = {2534 .get_drvinfo = nfp_app_get_drvinfo,2535 .nway_reset = nfp_net_nway_reset,2536 .get_link = ethtool_op_get_link,2537 .get_strings = nfp_port_get_strings,2538 .get_ethtool_stats = nfp_port_get_stats,2539 .self_test = nfp_net_self_test,2540 .get_sset_count = nfp_port_get_sset_count,2541 .set_dump = nfp_app_set_dump,2542 .get_dump_flag = nfp_app_get_dump_flag,2543 .get_dump_data = nfp_app_get_dump_data,2544 .get_eeprom_len = nfp_net_get_eeprom_len,2545 .get_eeprom = nfp_net_get_eeprom,2546 .set_eeprom = nfp_net_set_eeprom,2547 .get_module_info = nfp_port_get_module_info,2548 .get_module_eeprom = nfp_port_get_module_eeprom,2549 .get_link_ksettings = nfp_net_get_link_ksettings,2550 .set_link_ksettings = nfp_net_set_link_ksettings,2551 .get_fecparam = nfp_port_get_fecparam,2552 .set_fecparam = nfp_port_set_fecparam,2553 .set_pauseparam = nfp_port_set_pauseparam,2554 .get_pauseparam = nfp_port_get_pauseparam,2555 .set_phys_id = nfp_net_set_phys_id,2556};2557 2558void nfp_net_set_ethtool_ops(struct net_device *netdev)2559{2560 netdev->ethtool_ops = &nfp_net_ethtool_ops;2561}2562