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.c 6 * Netronome network device driver: ethtool support 7 * 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 out 64 * how different BPF modes use app-specific counters 65 */ 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 9 178#define NN_RVEC_GATHER_STATS 13 179#define NN_RVEC_PER_Q_STATS 3 180#define NN_CTRL_PATH_STATS 4 181 182#define SFP_SFF_REV_COMPLIANCE 1 183 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 void 203nfp_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 void 217nfp_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 int 232nfp_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 void 263nfp_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 void 273nfp_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 read 468 * link modes due to old management firmware that doesn't 469 * support link modes reading or error occurring, so that 470 * 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 settings 478 * @netdev: network interface device structure 479 * @cmd: ethtool command 480 * 481 * Reports speed settings based on info in the BAR provided by the fw. 482 */ 483static int 484nfp_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 int 546nfp_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 it 947 * effectively swapping the RX and TX statistics (giving us the RX 948 * 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 else 1102 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 void 1113nfp_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 else 1123 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 else 1139 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 else 1160 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 void 1170nfp_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 else 1178 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 else 1192 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 int 1236nfp_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 int 1260nfp_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 1024 1328 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 registers 1849 */ 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 dumps 1890 */ 1891static int 1892nfp_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 else 1919 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 TLV 1931 * based dumps), since flag 0 (default) calculates the length in 1932 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump 1933 * 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 int 1963nfp_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 int 1980nfp_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 int 1999nfp_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 int 2080nfp_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 to 2136 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp 2137 * count. 2138 */ 2139 factor = nn->tlv_caps.me_freq_mhz / 16; 2140 2141 /* Each pair of (usecs, max_frames) fields specifies that interrupts 2142 * should be coalesced until 2143 * (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 would 2147 * cause interrupts to never be generated. To disable coalescing, set 2148 * usecs = 0 and max_frames = 1. 2149 * 2150 * Some implementations ignore the value of max_frames and use the 2151 * condition time_since_first_completion >= usecs 2152 */ 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_ALEN 2337 2338static int 2339nfp_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 int 2353nfp_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 int 2387nfp_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 int 2420nfp_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 int 2449nfp_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 int 2468nfp_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