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nfp_net_ethtool.c
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linux-6.19.14/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.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.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_rxfh_fields(struct net_device *netdev, 1307 struct ethtool_rxfh_fields *cmd) 1308{ 1309 struct nfp_net *nn = netdev_priv(netdev); 1310 u32 nfp_rss_flag; 1311 1312 cmd->data = 0; 1313 1314 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1315 return -EOPNOTSUPP; 1316 1317 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type); 1318 if (!nfp_rss_flag) 1319 return -EINVAL; 1320 1321 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1322 if (nn->rss_cfg & nfp_rss_flag) 1323 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1324 1325 return 0; 1326} 1327 1328#define NFP_FS_MAX_ENTRY 1024 1329 1330static int nfp_net_fs_to_ethtool(struct nfp_fs_entry *entry, struct ethtool_rxnfc *cmd) 1331{ 1332 struct ethtool_rx_flow_spec *fs = &cmd->fs; 1333 unsigned int i; 1334 1335 switch (entry->flow_type & ~FLOW_RSS) { 1336 case TCP_V4_FLOW: 1337 case UDP_V4_FLOW: 1338 case SCTP_V4_FLOW: 1339 fs->h_u.tcp_ip4_spec.ip4src = entry->key.sip4; 1340 fs->h_u.tcp_ip4_spec.ip4dst = entry->key.dip4; 1341 fs->h_u.tcp_ip4_spec.psrc = entry->key.sport; 1342 fs->h_u.tcp_ip4_spec.pdst = entry->key.dport; 1343 fs->m_u.tcp_ip4_spec.ip4src = entry->msk.sip4; 1344 fs->m_u.tcp_ip4_spec.ip4dst = entry->msk.dip4; 1345 fs->m_u.tcp_ip4_spec.psrc = entry->msk.sport; 1346 fs->m_u.tcp_ip4_spec.pdst = entry->msk.dport; 1347 break; 1348 case TCP_V6_FLOW: 1349 case UDP_V6_FLOW: 1350 case SCTP_V6_FLOW: 1351 for (i = 0; i < 4; i++) { 1352 fs->h_u.tcp_ip6_spec.ip6src[i] = entry->key.sip6[i]; 1353 fs->h_u.tcp_ip6_spec.ip6dst[i] = entry->key.dip6[i]; 1354 fs->m_u.tcp_ip6_spec.ip6src[i] = entry->msk.sip6[i]; 1355 fs->m_u.tcp_ip6_spec.ip6dst[i] = entry->msk.dip6[i]; 1356 } 1357 fs->h_u.tcp_ip6_spec.psrc = entry->key.sport; 1358 fs->h_u.tcp_ip6_spec.pdst = entry->key.dport; 1359 fs->m_u.tcp_ip6_spec.psrc = entry->msk.sport; 1360 fs->m_u.tcp_ip6_spec.pdst = entry->msk.dport; 1361 break; 1362 case IPV4_USER_FLOW: 1363 fs->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 1364 fs->h_u.usr_ip4_spec.ip4src = entry->key.sip4; 1365 fs->h_u.usr_ip4_spec.ip4dst = entry->key.dip4; 1366 fs->h_u.usr_ip4_spec.proto = entry->key.l4_proto; 1367 fs->m_u.usr_ip4_spec.ip4src = entry->msk.sip4; 1368 fs->m_u.usr_ip4_spec.ip4dst = entry->msk.dip4; 1369 fs->m_u.usr_ip4_spec.proto = entry->msk.l4_proto; 1370 break; 1371 case IPV6_USER_FLOW: 1372 for (i = 0; i < 4; i++) { 1373 fs->h_u.usr_ip6_spec.ip6src[i] = entry->key.sip6[i]; 1374 fs->h_u.usr_ip6_spec.ip6dst[i] = entry->key.dip6[i]; 1375 fs->m_u.usr_ip6_spec.ip6src[i] = entry->msk.sip6[i]; 1376 fs->m_u.usr_ip6_spec.ip6dst[i] = entry->msk.dip6[i]; 1377 } 1378 fs->h_u.usr_ip6_spec.l4_proto = entry->key.l4_proto; 1379 fs->m_u.usr_ip6_spec.l4_proto = entry->msk.l4_proto; 1380 break; 1381 case ETHER_FLOW: 1382 fs->h_u.ether_spec.h_proto = entry->key.l3_proto; 1383 fs->m_u.ether_spec.h_proto = entry->msk.l3_proto; 1384 break; 1385 default: 1386 return -EINVAL; 1387 } 1388 1389 fs->flow_type = entry->flow_type; 1390 fs->ring_cookie = entry->action; 1391 1392 if (fs->flow_type & FLOW_RSS) { 1393 /* Only rss_context of 0 is supported. */ 1394 cmd->rss_context = 0; 1395 /* RSS is used, mask the ring. */ 1396 fs->ring_cookie |= ETHTOOL_RX_FLOW_SPEC_RING; 1397 } 1398 1399 return 0; 1400} 1401 1402static int nfp_net_get_fs_rule(struct nfp_net *nn, struct ethtool_rxnfc *cmd) 1403{ 1404 struct nfp_fs_entry *entry; 1405 1406 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) 1407 return -EOPNOTSUPP; 1408 1409 if (cmd->fs.location >= NFP_FS_MAX_ENTRY) 1410 return -EINVAL; 1411 1412 list_for_each_entry(entry, &nn->fs.list, node) { 1413 if (entry->loc == cmd->fs.location) 1414 return nfp_net_fs_to_ethtool(entry, cmd); 1415 1416 if (entry->loc > cmd->fs.location) 1417 /* no need to continue */ 1418 return -ENOENT; 1419 } 1420 1421 return -ENOENT; 1422} 1423 1424static int nfp_net_get_fs_loc(struct nfp_net *nn, u32 *rule_locs) 1425{ 1426 struct nfp_fs_entry *entry; 1427 u32 count = 0; 1428 1429 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) 1430 return -EOPNOTSUPP; 1431 1432 list_for_each_entry(entry, &nn->fs.list, node) 1433 rule_locs[count++] = entry->loc; 1434 1435 return 0; 1436} 1437 1438static int nfp_net_get_rxnfc(struct net_device *netdev, 1439 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1440{ 1441 struct nfp_net *nn = netdev_priv(netdev); 1442 1443 switch (cmd->cmd) { 1444 case ETHTOOL_GRXRINGS: 1445 cmd->data = nn->dp.num_rx_rings; 1446 return 0; 1447 case ETHTOOL_GRXCLSRLCNT: 1448 cmd->rule_cnt = nn->fs.count; 1449 return 0; 1450 case ETHTOOL_GRXCLSRULE: 1451 return nfp_net_get_fs_rule(nn, cmd); 1452 case ETHTOOL_GRXCLSRLALL: 1453 cmd->data = NFP_FS_MAX_ENTRY; 1454 return nfp_net_get_fs_loc(nn, rule_locs); 1455 default: 1456 return -EOPNOTSUPP; 1457 } 1458} 1459 1460static int nfp_net_set_rxfh_fields(struct net_device *netdev, 1461 const struct ethtool_rxfh_fields *nfc, 1462 struct netlink_ext_ack *extack) 1463{ 1464 struct nfp_net *nn = netdev_priv(netdev); 1465 u32 new_rss_cfg = nn->rss_cfg; 1466 u32 nfp_rss_flag; 1467 int err; 1468 1469 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1470 return -EOPNOTSUPP; 1471 1472 /* RSS only supports IP SA/DA and L4 src/dst ports */ 1473 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1474 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1475 return -EINVAL; 1476 1477 /* We need at least the IP SA/DA fields for hashing */ 1478 if (!(nfc->data & RXH_IP_SRC) || 1479 !(nfc->data & RXH_IP_DST)) 1480 return -EINVAL; 1481 1482 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type); 1483 if (!nfp_rss_flag) 1484 return -EINVAL; 1485 1486 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1487 case 0: 1488 new_rss_cfg &= ~nfp_rss_flag; 1489 break; 1490 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1491 new_rss_cfg |= nfp_rss_flag; 1492 break; 1493 default: 1494 return -EINVAL; 1495 } 1496 1497 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc); 1498 new_rss_cfg |= NFP_NET_CFG_RSS_MASK; 1499 1500 if (new_rss_cfg == nn->rss_cfg) 1501 return 0; 1502 1503 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL); 1504 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1505 if (err) 1506 return err; 1507 1508 nn->rss_cfg = new_rss_cfg; 1509 1510 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg); 1511 return 0; 1512} 1513 1514static int nfp_net_fs_from_ethtool(struct nfp_fs_entry *entry, struct ethtool_rx_flow_spec *fs) 1515{ 1516 unsigned int i; 1517 1518 /* FLOW_EXT/FLOW_MAC_EXT is not supported. */ 1519 switch (fs->flow_type & ~FLOW_RSS) { 1520 case TCP_V4_FLOW: 1521 case UDP_V4_FLOW: 1522 case SCTP_V4_FLOW: 1523 entry->msk.sip4 = fs->m_u.tcp_ip4_spec.ip4src; 1524 entry->msk.dip4 = fs->m_u.tcp_ip4_spec.ip4dst; 1525 entry->msk.sport = fs->m_u.tcp_ip4_spec.psrc; 1526 entry->msk.dport = fs->m_u.tcp_ip4_spec.pdst; 1527 entry->key.sip4 = fs->h_u.tcp_ip4_spec.ip4src & entry->msk.sip4; 1528 entry->key.dip4 = fs->h_u.tcp_ip4_spec.ip4dst & entry->msk.dip4; 1529 entry->key.sport = fs->h_u.tcp_ip4_spec.psrc & entry->msk.sport; 1530 entry->key.dport = fs->h_u.tcp_ip4_spec.pdst & entry->msk.dport; 1531 break; 1532 case TCP_V6_FLOW: 1533 case UDP_V6_FLOW: 1534 case SCTP_V6_FLOW: 1535 for (i = 0; i < 4; i++) { 1536 entry->msk.sip6[i] = fs->m_u.tcp_ip6_spec.ip6src[i]; 1537 entry->msk.dip6[i] = fs->m_u.tcp_ip6_spec.ip6dst[i]; 1538 entry->key.sip6[i] = fs->h_u.tcp_ip6_spec.ip6src[i] & entry->msk.sip6[i]; 1539 entry->key.dip6[i] = fs->h_u.tcp_ip6_spec.ip6dst[i] & entry->msk.dip6[i]; 1540 } 1541 entry->msk.sport = fs->m_u.tcp_ip6_spec.psrc; 1542 entry->msk.dport = fs->m_u.tcp_ip6_spec.pdst; 1543 entry->key.sport = fs->h_u.tcp_ip6_spec.psrc & entry->msk.sport; 1544 entry->key.dport = fs->h_u.tcp_ip6_spec.pdst & entry->msk.dport; 1545 break; 1546 case IPV4_USER_FLOW: 1547 entry->msk.sip4 = fs->m_u.usr_ip4_spec.ip4src; 1548 entry->msk.dip4 = fs->m_u.usr_ip4_spec.ip4dst; 1549 entry->msk.l4_proto = fs->m_u.usr_ip4_spec.proto; 1550 entry->key.sip4 = fs->h_u.usr_ip4_spec.ip4src & entry->msk.sip4; 1551 entry->key.dip4 = fs->h_u.usr_ip4_spec.ip4dst & entry->msk.dip4; 1552 entry->key.l4_proto = fs->h_u.usr_ip4_spec.proto & entry->msk.l4_proto; 1553 break; 1554 case IPV6_USER_FLOW: 1555 for (i = 0; i < 4; i++) { 1556 entry->msk.sip6[i] = fs->m_u.usr_ip6_spec.ip6src[i]; 1557 entry->msk.dip6[i] = fs->m_u.usr_ip6_spec.ip6dst[i]; 1558 entry->key.sip6[i] = fs->h_u.usr_ip6_spec.ip6src[i] & entry->msk.sip6[i]; 1559 entry->key.dip6[i] = fs->h_u.usr_ip6_spec.ip6dst[i] & entry->msk.dip6[i]; 1560 } 1561 entry->msk.l4_proto = fs->m_u.usr_ip6_spec.l4_proto; 1562 entry->key.l4_proto = fs->h_u.usr_ip6_spec.l4_proto & entry->msk.l4_proto; 1563 break; 1564 case ETHER_FLOW: 1565 entry->msk.l3_proto = fs->m_u.ether_spec.h_proto; 1566 entry->key.l3_proto = fs->h_u.ether_spec.h_proto & entry->msk.l3_proto; 1567 break; 1568 default: 1569 return -EINVAL; 1570 } 1571 1572 switch (fs->flow_type & ~FLOW_RSS) { 1573 case TCP_V4_FLOW: 1574 case TCP_V6_FLOW: 1575 entry->key.l4_proto = IPPROTO_TCP; 1576 entry->msk.l4_proto = 0xff; 1577 break; 1578 case UDP_V4_FLOW: 1579 case UDP_V6_FLOW: 1580 entry->key.l4_proto = IPPROTO_UDP; 1581 entry->msk.l4_proto = 0xff; 1582 break; 1583 case SCTP_V4_FLOW: 1584 case SCTP_V6_FLOW: 1585 entry->key.l4_proto = IPPROTO_SCTP; 1586 entry->msk.l4_proto = 0xff; 1587 break; 1588 } 1589 1590 entry->flow_type = fs->flow_type; 1591 entry->action = fs->ring_cookie; 1592 entry->loc = fs->location; 1593 1594 return 0; 1595} 1596 1597static int nfp_net_fs_check_existing(struct nfp_net *nn, struct nfp_fs_entry *new) 1598{ 1599 struct nfp_fs_entry *entry; 1600 1601 list_for_each_entry(entry, &nn->fs.list, node) { 1602 if (new->loc != entry->loc && 1603 !((new->flow_type ^ entry->flow_type) & ~FLOW_RSS) && 1604 !memcmp(&new->key, &entry->key, sizeof(new->key)) && 1605 !memcmp(&new->msk, &entry->msk, sizeof(new->msk))) 1606 return entry->loc; 1607 } 1608 1609 /* -1 means no duplicates */ 1610 return -1; 1611} 1612 1613static int nfp_net_fs_add(struct nfp_net *nn, struct ethtool_rxnfc *cmd) 1614{ 1615 struct ethtool_rx_flow_spec *fs = &cmd->fs; 1616 struct nfp_fs_entry *new, *entry; 1617 bool unsupp_mask; 1618 int err, id; 1619 1620 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) 1621 return -EOPNOTSUPP; 1622 1623 /* Only default RSS context(0) is supported. */ 1624 if ((fs->flow_type & FLOW_RSS) && cmd->rss_context) 1625 return -EOPNOTSUPP; 1626 1627 if (fs->location >= NFP_FS_MAX_ENTRY) 1628 return -EINVAL; 1629 1630 if (fs->ring_cookie != RX_CLS_FLOW_DISC && 1631 fs->ring_cookie >= nn->dp.num_rx_rings) 1632 return -EINVAL; 1633 1634 /* FLOW_EXT/FLOW_MAC_EXT is not supported. */ 1635 switch (fs->flow_type & ~FLOW_RSS) { 1636 case TCP_V4_FLOW: 1637 case UDP_V4_FLOW: 1638 case SCTP_V4_FLOW: 1639 unsupp_mask = !!fs->m_u.tcp_ip4_spec.tos; 1640 break; 1641 case TCP_V6_FLOW: 1642 case UDP_V6_FLOW: 1643 case SCTP_V6_FLOW: 1644 unsupp_mask = !!fs->m_u.tcp_ip6_spec.tclass; 1645 break; 1646 case IPV4_USER_FLOW: 1647 unsupp_mask = !!fs->m_u.usr_ip4_spec.l4_4_bytes || 1648 !!fs->m_u.usr_ip4_spec.tos || 1649 !!fs->m_u.usr_ip4_spec.ip_ver; 1650 /* ip_ver must be ETH_RX_NFC_IP4. */ 1651 unsupp_mask |= fs->h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4; 1652 break; 1653 case IPV6_USER_FLOW: 1654 unsupp_mask = !!fs->m_u.usr_ip6_spec.l4_4_bytes || 1655 !!fs->m_u.usr_ip6_spec.tclass; 1656 break; 1657 case ETHER_FLOW: 1658 if (fs->h_u.ether_spec.h_proto == htons(ETH_P_IP) || 1659 fs->h_u.ether_spec.h_proto == htons(ETH_P_IPV6)) { 1660 nn_err(nn, "Please use ip4/ip6 flow type instead.\n"); 1661 return -EOPNOTSUPP; 1662 } 1663 /* Only unmasked ethtype is supported. */ 1664 unsupp_mask = !is_zero_ether_addr(fs->m_u.ether_spec.h_dest) || 1665 !is_zero_ether_addr(fs->m_u.ether_spec.h_source) || 1666 (fs->m_u.ether_spec.h_proto != htons(0xffff)); 1667 break; 1668 default: 1669 return -EOPNOTSUPP; 1670 } 1671 1672 if (unsupp_mask) 1673 return -EOPNOTSUPP; 1674 1675 new = kzalloc(sizeof(*new), GFP_KERNEL); 1676 if (!new) 1677 return -ENOMEM; 1678 1679 nfp_net_fs_from_ethtool(new, fs); 1680 1681 id = nfp_net_fs_check_existing(nn, new); 1682 if (id >= 0) { 1683 nn_err(nn, "Identical rule is existing in %d.\n", id); 1684 err = -EINVAL; 1685 goto err; 1686 } 1687 1688 /* Insert to list in ascending order of location. */ 1689 list_for_each_entry(entry, &nn->fs.list, node) { 1690 if (entry->loc == fs->location) { 1691 err = nfp_net_fs_del_hw(nn, entry); 1692 if (err) 1693 goto err; 1694 1695 nn->fs.count--; 1696 err = nfp_net_fs_add_hw(nn, new); 1697 if (err) 1698 goto err; 1699 1700 nn->fs.count++; 1701 list_replace(&entry->node, &new->node); 1702 kfree(entry); 1703 1704 return 0; 1705 } 1706 1707 if (entry->loc > fs->location) 1708 break; 1709 } 1710 1711 if (nn->fs.count == NFP_FS_MAX_ENTRY) { 1712 err = -ENOSPC; 1713 goto err; 1714 } 1715 1716 err = nfp_net_fs_add_hw(nn, new); 1717 if (err) 1718 goto err; 1719 1720 list_add_tail(&new->node, &entry->node); 1721 nn->fs.count++; 1722 1723 return 0; 1724 1725err: 1726 kfree(new); 1727 return err; 1728} 1729 1730static int nfp_net_fs_del(struct nfp_net *nn, struct ethtool_rxnfc *cmd) 1731{ 1732 struct nfp_fs_entry *entry; 1733 int err; 1734 1735 if (!(nn->cap_w1 & NFP_NET_CFG_CTRL_FLOW_STEER)) 1736 return -EOPNOTSUPP; 1737 1738 if (!nn->fs.count || cmd->fs.location >= NFP_FS_MAX_ENTRY) 1739 return -EINVAL; 1740 1741 list_for_each_entry(entry, &nn->fs.list, node) { 1742 if (entry->loc == cmd->fs.location) { 1743 err = nfp_net_fs_del_hw(nn, entry); 1744 if (err) 1745 return err; 1746 1747 list_del(&entry->node); 1748 kfree(entry); 1749 nn->fs.count--; 1750 1751 return 0; 1752 } else if (entry->loc > cmd->fs.location) { 1753 /* no need to continue */ 1754 break; 1755 } 1756 } 1757 1758 return -ENOENT; 1759} 1760 1761static int nfp_net_set_rxnfc(struct net_device *netdev, 1762 struct ethtool_rxnfc *cmd) 1763{ 1764 struct nfp_net *nn = netdev_priv(netdev); 1765 1766 switch (cmd->cmd) { 1767 case ETHTOOL_SRXCLSRLINS: 1768 return nfp_net_fs_add(nn, cmd); 1769 case ETHTOOL_SRXCLSRLDEL: 1770 return nfp_net_fs_del(nn, cmd); 1771 default: 1772 return -EOPNOTSUPP; 1773 } 1774} 1775 1776static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev) 1777{ 1778 struct nfp_net *nn = netdev_priv(netdev); 1779 1780 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1781 return 0; 1782 1783 return ARRAY_SIZE(nn->rss_itbl); 1784} 1785 1786static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev) 1787{ 1788 struct nfp_net *nn = netdev_priv(netdev); 1789 1790 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1791 return 0; 1792 1793 return nfp_net_rss_key_sz(nn); 1794} 1795 1796static int nfp_net_get_rxfh(struct net_device *netdev, 1797 struct ethtool_rxfh_param *rxfh) 1798{ 1799 struct nfp_net *nn = netdev_priv(netdev); 1800 int i; 1801 1802 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1803 return -EOPNOTSUPP; 1804 1805 if (rxfh->indir) 1806 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1807 rxfh->indir[i] = nn->rss_itbl[i]; 1808 if (rxfh->key) 1809 memcpy(rxfh->key, nn->rss_key, nfp_net_rss_key_sz(nn)); 1810 1811 rxfh->hfunc = nn->rss_hfunc; 1812 if (rxfh->hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT) 1813 rxfh->hfunc = ETH_RSS_HASH_UNKNOWN; 1814 1815 return 0; 1816} 1817 1818static int nfp_net_set_rxfh(struct net_device *netdev, 1819 struct ethtool_rxfh_param *rxfh, 1820 struct netlink_ext_ack *extack) 1821{ 1822 struct nfp_net *nn = netdev_priv(netdev); 1823 int i; 1824 1825 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) || 1826 !(rxfh->hfunc == ETH_RSS_HASH_NO_CHANGE || 1827 rxfh->hfunc == nn->rss_hfunc)) 1828 return -EOPNOTSUPP; 1829 1830 if (!rxfh->key && !rxfh->indir) 1831 return 0; 1832 1833 if (rxfh->key) { 1834 memcpy(nn->rss_key, rxfh->key, nfp_net_rss_key_sz(nn)); 1835 nfp_net_rss_write_key(nn); 1836 } 1837 if (rxfh->indir) { 1838 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1839 nn->rss_itbl[i] = rxfh->indir[i]; 1840 1841 nfp_net_rss_write_itbl(nn); 1842 } 1843 1844 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1845} 1846 1847/* Dump BAR registers 1848 */ 1849static int nfp_net_get_regs_len(struct net_device *netdev) 1850{ 1851 return NFP_NET_CFG_BAR_SZ; 1852} 1853 1854static void nfp_net_get_regs(struct net_device *netdev, 1855 struct ethtool_regs *regs, void *p) 1856{ 1857 struct nfp_net *nn = netdev_priv(netdev); 1858 u32 *regs_buf = p; 1859 int i; 1860 1861 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION); 1862 1863 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++) 1864 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32))); 1865} 1866 1867static int nfp_net_get_coalesce(struct net_device *netdev, 1868 struct ethtool_coalesce *ec, 1869 struct kernel_ethtool_coalesce *kernel_coal, 1870 struct netlink_ext_ack *extack) 1871{ 1872 struct nfp_net *nn = netdev_priv(netdev); 1873 1874 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1875 return -EOPNOTSUPP; 1876 1877 ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on; 1878 ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on; 1879 1880 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs; 1881 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames; 1882 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs; 1883 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames; 1884 1885 return 0; 1886} 1887 1888/* Other debug dumps 1889 */ 1890static int 1891nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer) 1892{ 1893 struct nfp_resource *res; 1894 int ret; 1895 1896 if (!app) 1897 return -EOPNOTSUPP; 1898 1899 dump->version = 1; 1900 dump->flag = NFP_DUMP_NSP_DIAG; 1901 1902 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG); 1903 if (IS_ERR(res)) 1904 return PTR_ERR(res); 1905 1906 if (buffer) { 1907 if (dump->len != nfp_resource_size(res)) { 1908 ret = -EINVAL; 1909 goto exit_release; 1910 } 1911 1912 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res), 1913 nfp_resource_address(res), 1914 buffer, dump->len); 1915 if (ret != dump->len) 1916 ret = ret < 0 ? ret : -EIO; 1917 else 1918 ret = 0; 1919 } else { 1920 dump->len = nfp_resource_size(res); 1921 ret = 0; 1922 } 1923exit_release: 1924 nfp_resource_release(res); 1925 1926 return ret; 1927} 1928 1929/* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV 1930 * based dumps), since flag 0 (default) calculates the length in 1931 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump 1932 * without setting the flag first, for backward compatibility. 1933 */ 1934static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val) 1935{ 1936 struct nfp_app *app = nfp_app_from_netdev(netdev); 1937 s64 len; 1938 1939 if (!app) 1940 return -EOPNOTSUPP; 1941 1942 if (val->flag == NFP_DUMP_NSP_DIAG) { 1943 app->pf->dump_flag = val->flag; 1944 return 0; 1945 } 1946 1947 if (!app->pf->dumpspec) 1948 return -EOPNOTSUPP; 1949 1950 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec, 1951 val->flag); 1952 if (len < 0) 1953 return len; 1954 1955 app->pf->dump_flag = val->flag; 1956 app->pf->dump_len = len; 1957 1958 return 0; 1959} 1960 1961static int 1962nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump) 1963{ 1964 struct nfp_app *app = nfp_app_from_netdev(netdev); 1965 1966 if (!app) 1967 return -EOPNOTSUPP; 1968 1969 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1970 return nfp_dump_nsp_diag(app, dump, NULL); 1971 1972 dump->flag = app->pf->dump_flag; 1973 dump->len = app->pf->dump_len; 1974 1975 return 0; 1976} 1977 1978static int 1979nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump, 1980 void *buffer) 1981{ 1982 struct nfp_app *app = nfp_app_from_netdev(netdev); 1983 1984 if (!app) 1985 return -EOPNOTSUPP; 1986 1987 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1988 return nfp_dump_nsp_diag(app, dump, buffer); 1989 1990 dump->flag = app->pf->dump_flag; 1991 dump->len = app->pf->dump_len; 1992 1993 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump, 1994 buffer); 1995} 1996 1997static int 1998nfp_port_get_module_info(struct net_device *netdev, 1999 struct ethtool_modinfo *modinfo) 2000{ 2001 struct nfp_eth_table_port *eth_port; 2002 struct nfp_port *port; 2003 unsigned int read_len; 2004 struct nfp_nsp *nsp; 2005 int err = 0; 2006 u8 data; 2007 2008 port = nfp_port_from_netdev(netdev); 2009 if (!port) 2010 return -EOPNOTSUPP; 2011 2012 /* update port state to get latest interface */ 2013 set_bit(NFP_PORT_CHANGED, &port->flags); 2014 eth_port = nfp_port_get_eth_port(port); 2015 if (!eth_port) 2016 return -EOPNOTSUPP; 2017 2018 nsp = nfp_nsp_open(port->app->cpp); 2019 if (IS_ERR(nsp)) { 2020 err = PTR_ERR(nsp); 2021 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 2022 return err; 2023 } 2024 2025 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 2026 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 2027 err = -EOPNOTSUPP; 2028 goto exit_close_nsp; 2029 } 2030 2031 switch (eth_port->interface) { 2032 case NFP_INTERFACE_SFP: 2033 case NFP_INTERFACE_SFP28: 2034 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 2035 SFP_SFF8472_COMPLIANCE, &data, 2036 1, &read_len); 2037 if (err < 0) 2038 goto exit_close_nsp; 2039 2040 if (!data) { 2041 modinfo->type = ETH_MODULE_SFF_8079; 2042 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 2043 } else { 2044 modinfo->type = ETH_MODULE_SFF_8472; 2045 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 2046 } 2047 break; 2048 case NFP_INTERFACE_QSFP: 2049 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 2050 SFP_SFF_REV_COMPLIANCE, &data, 2051 1, &read_len); 2052 if (err < 0) 2053 goto exit_close_nsp; 2054 2055 if (data < 0x3) { 2056 modinfo->type = ETH_MODULE_SFF_8436; 2057 modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN; 2058 } else { 2059 modinfo->type = ETH_MODULE_SFF_8636; 2060 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 2061 } 2062 break; 2063 case NFP_INTERFACE_QSFP28: 2064 modinfo->type = ETH_MODULE_SFF_8636; 2065 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 2066 break; 2067 default: 2068 netdev_err(netdev, "Unsupported module 0x%x detected\n", 2069 eth_port->interface); 2070 err = -EINVAL; 2071 } 2072 2073exit_close_nsp: 2074 nfp_nsp_close(nsp); 2075 return err; 2076} 2077 2078static int 2079nfp_port_get_module_eeprom(struct net_device *netdev, 2080 struct ethtool_eeprom *eeprom, u8 *data) 2081{ 2082 struct nfp_eth_table_port *eth_port; 2083 struct nfp_port *port; 2084 struct nfp_nsp *nsp; 2085 int err; 2086 2087 port = nfp_port_from_netdev(netdev); 2088 eth_port = __nfp_port_get_eth_port(port); 2089 if (!eth_port) 2090 return -EOPNOTSUPP; 2091 2092 nsp = nfp_nsp_open(port->app->cpp); 2093 if (IS_ERR(nsp)) { 2094 err = PTR_ERR(nsp); 2095 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 2096 return err; 2097 } 2098 2099 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 2100 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 2101 err = -EOPNOTSUPP; 2102 goto exit_close_nsp; 2103 } 2104 2105 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 2106 eeprom->offset, data, eeprom->len, 2107 &eeprom->len); 2108 if (err < 0) { 2109 if (eeprom->len) { 2110 netdev_warn(netdev, 2111 "Incomplete read from module EEPROM: %d\n", 2112 err); 2113 err = 0; 2114 } else { 2115 netdev_err(netdev, 2116 "Reading from module EEPROM failed: %d\n", 2117 err); 2118 } 2119 } 2120 2121exit_close_nsp: 2122 nfp_nsp_close(nsp); 2123 return err; 2124} 2125 2126static int nfp_net_set_coalesce(struct net_device *netdev, 2127 struct ethtool_coalesce *ec, 2128 struct kernel_ethtool_coalesce *kernel_coal, 2129 struct netlink_ext_ack *extack) 2130{ 2131 struct nfp_net *nn = netdev_priv(netdev); 2132 unsigned int factor; 2133 2134 /* Compute factor used to convert coalesce '_usecs' parameters to 2135 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp 2136 * count. 2137 */ 2138 factor = nn->tlv_caps.me_freq_mhz / 16; 2139 2140 /* Each pair of (usecs, max_frames) fields specifies that interrupts 2141 * should be coalesced until 2142 * (usecs > 0 && time_since_first_completion >= usecs) || 2143 * (max_frames > 0 && completed_frames >= max_frames) 2144 * 2145 * It is illegal to set both usecs and max_frames to zero as this would 2146 * cause interrupts to never be generated. To disable coalescing, set 2147 * usecs = 0 and max_frames = 1. 2148 * 2149 * Some implementations ignore the value of max_frames and use the 2150 * condition time_since_first_completion >= usecs 2151 */ 2152 2153 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 2154 return -EOPNOTSUPP; 2155 2156 /* ensure valid configuration */ 2157 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) { 2158 NL_SET_ERR_MSG_MOD(extack, 2159 "rx-usecs and rx-frames cannot both be zero"); 2160 return -EINVAL; 2161 } 2162 2163 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) { 2164 NL_SET_ERR_MSG_MOD(extack, 2165 "tx-usecs and tx-frames cannot both be zero"); 2166 return -EINVAL; 2167 } 2168 2169 if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor)) { 2170 NL_SET_ERR_MSG_MOD(extack, "rx-usecs too large"); 2171 return -EINVAL; 2172 } 2173 2174 if (nfp_net_coalesce_para_check(ec->rx_max_coalesced_frames)) { 2175 NL_SET_ERR_MSG_MOD(extack, "rx-frames too large"); 2176 return -EINVAL; 2177 } 2178 2179 if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor)) { 2180 NL_SET_ERR_MSG_MOD(extack, "tx-usecs too large"); 2181 return -EINVAL; 2182 } 2183 2184 if (nfp_net_coalesce_para_check(ec->tx_max_coalesced_frames)) { 2185 NL_SET_ERR_MSG_MOD(extack, "tx-frames too large"); 2186 return -EINVAL; 2187 } 2188 2189 /* configuration is valid */ 2190 nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce; 2191 nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce; 2192 2193 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs; 2194 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames; 2195 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs; 2196 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames; 2197 2198 /* write configuration to device */ 2199 nfp_net_coalesce_write_cfg(nn); 2200 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD); 2201} 2202 2203static void nfp_net_get_channels(struct net_device *netdev, 2204 struct ethtool_channels *channel) 2205{ 2206 struct nfp_net *nn = netdev_priv(netdev); 2207 unsigned int num_tx_rings; 2208 2209 num_tx_rings = nn->dp.num_tx_rings; 2210 if (nn->dp.xdp_prog) 2211 num_tx_rings -= nn->dp.num_rx_rings; 2212 2213 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs); 2214 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs); 2215 channel->max_combined = min(channel->max_rx, channel->max_tx); 2216 channel->max_other = NFP_NET_NON_Q_VECTORS; 2217 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings); 2218 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count; 2219 channel->tx_count = num_tx_rings - channel->combined_count; 2220 channel->other_count = NFP_NET_NON_Q_VECTORS; 2221} 2222 2223static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx, 2224 unsigned int total_tx) 2225{ 2226 struct nfp_net_dp *dp; 2227 2228 dp = nfp_net_clone_dp(nn); 2229 if (!dp) 2230 return -ENOMEM; 2231 2232 dp->num_rx_rings = total_rx; 2233 dp->num_tx_rings = total_tx; 2234 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */ 2235 if (dp->xdp_prog) 2236 dp->num_tx_rings += total_rx; 2237 2238 return nfp_net_ring_reconfig(nn, dp, NULL); 2239} 2240 2241static int nfp_net_set_channels(struct net_device *netdev, 2242 struct ethtool_channels *channel) 2243{ 2244 struct nfp_net *nn = netdev_priv(netdev); 2245 unsigned int total_rx, total_tx; 2246 2247 /* Reject unsupported */ 2248 if (channel->other_count != NFP_NET_NON_Q_VECTORS || 2249 (channel->rx_count && channel->tx_count)) 2250 return -EINVAL; 2251 2252 total_rx = channel->combined_count + channel->rx_count; 2253 total_tx = channel->combined_count + channel->tx_count; 2254 2255 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) || 2256 total_tx > min(nn->max_tx_rings, nn->max_r_vecs)) 2257 return -EINVAL; 2258 2259 return nfp_net_set_num_rings(nn, total_rx, total_tx); 2260} 2261 2262static int nfp_port_set_pauseparam(struct net_device *netdev, 2263 struct ethtool_pauseparam *pause) 2264{ 2265 struct nfp_eth_table_port *eth_port; 2266 struct nfp_port *port; 2267 int err; 2268 2269 port = nfp_port_from_netdev(netdev); 2270 eth_port = nfp_port_get_eth_port(port); 2271 if (!eth_port) 2272 return -EOPNOTSUPP; 2273 2274 if (pause->autoneg != AUTONEG_DISABLE) 2275 return -EOPNOTSUPP; 2276 2277 err = nfp_eth_set_pauseparam(port->app->cpp, eth_port->index, 2278 pause->tx_pause, pause->rx_pause); 2279 if (!err) 2280 /* Only refresh if we did something */ 2281 nfp_net_refresh_port_table(port); 2282 2283 return err < 0 ? err : 0; 2284} 2285 2286static void nfp_port_get_pauseparam(struct net_device *netdev, 2287 struct ethtool_pauseparam *pause) 2288{ 2289 struct nfp_eth_table_port *eth_port; 2290 struct nfp_port *port; 2291 2292 port = nfp_port_from_netdev(netdev); 2293 eth_port = nfp_port_get_eth_port(port); 2294 if (!eth_port) 2295 return; 2296 2297 /* Currently pause frame autoneg is fixed */ 2298 pause->autoneg = AUTONEG_DISABLE; 2299 pause->rx_pause = eth_port->rx_pause; 2300 pause->tx_pause = eth_port->tx_pause; 2301} 2302 2303static int nfp_net_set_phys_id(struct net_device *netdev, 2304 enum ethtool_phys_id_state state) 2305{ 2306 struct nfp_eth_table_port *eth_port; 2307 struct nfp_port *port; 2308 int err; 2309 2310 port = nfp_port_from_netdev(netdev); 2311 eth_port = __nfp_port_get_eth_port(port); 2312 if (!eth_port) 2313 return -EOPNOTSUPP; 2314 2315 switch (state) { 2316 case ETHTOOL_ID_ACTIVE: 2317 /* Control LED to blink */ 2318 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 1); 2319 break; 2320 2321 case ETHTOOL_ID_INACTIVE: 2322 /* Control LED to normal mode */ 2323 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 0); 2324 break; 2325 2326 case ETHTOOL_ID_ON: 2327 case ETHTOOL_ID_OFF: 2328 default: 2329 return -EOPNOTSUPP; 2330 } 2331 2332 return err; 2333} 2334 2335#define NFP_EEPROM_LEN ETH_ALEN 2336 2337static int 2338nfp_net_get_eeprom_len(struct net_device *netdev) 2339{ 2340 struct nfp_eth_table_port *eth_port; 2341 struct nfp_port *port; 2342 2343 port = nfp_port_from_netdev(netdev); 2344 eth_port = __nfp_port_get_eth_port(port); 2345 if (!eth_port) 2346 return 0; 2347 2348 return NFP_EEPROM_LEN; 2349} 2350 2351static int 2352nfp_net_get_nsp_hwindex(struct net_device *netdev, 2353 struct nfp_nsp **nspptr, 2354 u32 *index) 2355{ 2356 struct nfp_eth_table_port *eth_port; 2357 struct nfp_port *port; 2358 struct nfp_nsp *nsp; 2359 int err; 2360 2361 port = nfp_port_from_netdev(netdev); 2362 eth_port = __nfp_port_get_eth_port(port); 2363 if (!eth_port) 2364 return -EOPNOTSUPP; 2365 2366 nsp = nfp_nsp_open(port->app->cpp); 2367 if (IS_ERR(nsp)) { 2368 err = PTR_ERR(nsp); 2369 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 2370 return err; 2371 } 2372 2373 if (!nfp_nsp_has_hwinfo_lookup(nsp)) { 2374 netdev_err(netdev, "NSP doesn't support PF MAC generation\n"); 2375 nfp_nsp_close(nsp); 2376 return -EOPNOTSUPP; 2377 } 2378 2379 *nspptr = nsp; 2380 *index = eth_port->eth_index; 2381 2382 return 0; 2383} 2384 2385static int 2386nfp_net_get_port_mac_by_hwinfo(struct net_device *netdev, 2387 u8 *mac_addr) 2388{ 2389 char hwinfo[32] = {}; 2390 struct nfp_nsp *nsp; 2391 u32 index; 2392 int err; 2393 2394 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 2395 if (err) 2396 return err; 2397 2398 snprintf(hwinfo, sizeof(hwinfo), "eth%u.mac", index); 2399 err = nfp_nsp_hwinfo_lookup(nsp, hwinfo, sizeof(hwinfo)); 2400 nfp_nsp_close(nsp); 2401 if (err) { 2402 netdev_err(netdev, "Reading persistent MAC address failed: %d\n", 2403 err); 2404 return -EOPNOTSUPP; 2405 } 2406 2407 if (sscanf(hwinfo, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 2408 &mac_addr[0], &mac_addr[1], &mac_addr[2], 2409 &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) { 2410 netdev_err(netdev, "Can't parse persistent MAC address (%s)\n", 2411 hwinfo); 2412 return -EOPNOTSUPP; 2413 } 2414 2415 return 0; 2416} 2417 2418static int 2419nfp_net_set_port_mac_by_hwinfo(struct net_device *netdev, 2420 u8 *mac_addr) 2421{ 2422 char hwinfo[32] = {}; 2423 struct nfp_nsp *nsp; 2424 u32 index; 2425 int err; 2426 2427 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 2428 if (err) 2429 return err; 2430 2431 snprintf(hwinfo, sizeof(hwinfo), 2432 "eth%u.mac=%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 2433 index, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], 2434 mac_addr[4], mac_addr[5]); 2435 2436 err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo)); 2437 nfp_nsp_close(nsp); 2438 if (err) { 2439 netdev_err(netdev, "HWinfo set failed: %d, hwinfo: %s\n", 2440 err, hwinfo); 2441 return -EOPNOTSUPP; 2442 } 2443 2444 return 0; 2445} 2446 2447static int 2448nfp_net_get_eeprom(struct net_device *netdev, 2449 struct ethtool_eeprom *eeprom, u8 *bytes) 2450{ 2451 struct nfp_app *app = nfp_app_from_netdev(netdev); 2452 u8 buf[NFP_EEPROM_LEN] = {}; 2453 2454 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 2455 return -EOPNOTSUPP; 2456 2457 if (eeprom->len == 0) 2458 return -EINVAL; 2459 2460 eeprom->magic = app->pdev->vendor | (app->pdev->device << 16); 2461 memcpy(bytes, buf + eeprom->offset, eeprom->len); 2462 2463 return 0; 2464} 2465 2466static int 2467nfp_net_set_eeprom(struct net_device *netdev, 2468 struct ethtool_eeprom *eeprom, u8 *bytes) 2469{ 2470 struct nfp_app *app = nfp_app_from_netdev(netdev); 2471 u8 buf[NFP_EEPROM_LEN] = {}; 2472 2473 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 2474 return -EOPNOTSUPP; 2475 2476 if (eeprom->len == 0) 2477 return -EINVAL; 2478 2479 if (eeprom->magic != (app->pdev->vendor | app->pdev->device << 16)) 2480 return -EINVAL; 2481 2482 memcpy(buf + eeprom->offset, bytes, eeprom->len); 2483 if (nfp_net_set_port_mac_by_hwinfo(netdev, buf)) 2484 return -EOPNOTSUPP; 2485 2486 return 0; 2487} 2488 2489static const struct ethtool_ops nfp_net_ethtool_ops = { 2490 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 2491 ETHTOOL_COALESCE_MAX_FRAMES | 2492 ETHTOOL_COALESCE_USE_ADAPTIVE, 2493 .get_drvinfo = nfp_net_get_drvinfo, 2494 .nway_reset = nfp_net_nway_reset, 2495 .get_link = ethtool_op_get_link, 2496 .get_ringparam = nfp_net_get_ringparam, 2497 .set_ringparam = nfp_net_set_ringparam, 2498 .self_test = nfp_net_self_test, 2499 .get_strings = nfp_net_get_strings, 2500 .get_ethtool_stats = nfp_net_get_stats, 2501 .get_sset_count = nfp_net_get_sset_count, 2502 .get_rxnfc = nfp_net_get_rxnfc, 2503 .set_rxnfc = nfp_net_set_rxnfc, 2504 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size, 2505 .get_rxfh_key_size = nfp_net_get_rxfh_key_size, 2506 .get_rxfh = nfp_net_get_rxfh, 2507 .set_rxfh = nfp_net_set_rxfh, 2508 .get_rxfh_fields = nfp_net_get_rxfh_fields, 2509 .set_rxfh_fields = nfp_net_set_rxfh_fields, 2510 .get_regs_len = nfp_net_get_regs_len, 2511 .get_regs = nfp_net_get_regs, 2512 .set_dump = nfp_app_set_dump, 2513 .get_dump_flag = nfp_app_get_dump_flag, 2514 .get_dump_data = nfp_app_get_dump_data, 2515 .get_eeprom_len = nfp_net_get_eeprom_len, 2516 .get_eeprom = nfp_net_get_eeprom, 2517 .set_eeprom = nfp_net_set_eeprom, 2518 .get_module_info = nfp_port_get_module_info, 2519 .get_module_eeprom = nfp_port_get_module_eeprom, 2520 .get_coalesce = nfp_net_get_coalesce, 2521 .set_coalesce = nfp_net_set_coalesce, 2522 .get_channels = nfp_net_get_channels, 2523 .set_channels = nfp_net_set_channels, 2524 .get_link_ksettings = nfp_net_get_link_ksettings, 2525 .set_link_ksettings = nfp_net_set_link_ksettings, 2526 .get_fecparam = nfp_port_get_fecparam, 2527 .set_fecparam = nfp_port_set_fecparam, 2528 .set_pauseparam = nfp_port_set_pauseparam, 2529 .get_pauseparam = nfp_port_get_pauseparam, 2530 .set_phys_id = nfp_net_set_phys_id, 2531 .get_ts_info = ethtool_op_get_ts_info, 2532}; 2533 2534const struct ethtool_ops nfp_port_ethtool_ops = { 2535 .get_drvinfo = nfp_app_get_drvinfo, 2536 .nway_reset = nfp_net_nway_reset, 2537 .get_link = ethtool_op_get_link, 2538 .get_strings = nfp_port_get_strings, 2539 .get_ethtool_stats = nfp_port_get_stats, 2540 .self_test = nfp_net_self_test, 2541 .get_sset_count = nfp_port_get_sset_count, 2542 .set_dump = nfp_app_set_dump, 2543 .get_dump_flag = nfp_app_get_dump_flag, 2544 .get_dump_data = nfp_app_get_dump_data, 2545 .get_eeprom_len = nfp_net_get_eeprom_len, 2546 .get_eeprom = nfp_net_get_eeprom, 2547 .set_eeprom = nfp_net_set_eeprom, 2548 .get_module_info = nfp_port_get_module_info, 2549 .get_module_eeprom = nfp_port_get_module_eeprom, 2550 .get_link_ksettings = nfp_net_get_link_ksettings, 2551 .set_link_ksettings = nfp_net_set_link_ksettings, 2552 .get_fecparam = nfp_port_get_fecparam, 2553 .set_fecparam = nfp_port_set_fecparam, 2554 .set_pauseparam = nfp_port_set_pauseparam, 2555 .get_pauseparam = nfp_port_get_pauseparam, 2556 .set_phys_id = nfp_net_set_phys_id, 2557}; 2558 2559void nfp_net_set_ethtool_ops(struct net_device *netdev) 2560{ 2561 netdev->ethtool_ops = &nfp_net_ethtool_ops; 2562}
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