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 34 struct nfp_et_stat { 35 char name[ETH_GSTRING_LEN]; 36 int off; 37 }; 38 39 static 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 74 static 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 }; 153 154 static 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 1 183 184 static 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 } 201 202 static void 203 nfp_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 } 215 216 static void 217 nfp_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 } 230 231 static int 232 nfp_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 } 261 262 static void 263 nfp_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 } 271 272 static void 273 nfp_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 } 295 296 static 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 }; 425 426 static 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 }; 434 435 static 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 u64 supported_modes[2], advertised_modes[2]; 440 struct nfp_eth_media_buf ethm = { 441 .eth_index = eth_port->eth_index, 442 }; 443 struct nfp_cpp *cpp = port->app->cpp; 444 445 if (nfp_eth_read_media(cpp, ðm)) { 446 bitmap_fill(port->speed_bitmap, NFP_SUP_SPEED_NUMBER); 447 return; 448 } 449 450 bitmap_zero(port->speed_bitmap, NFP_SUP_SPEED_NUMBER); 451 452 for (u32 i = 0; i < 2; i++) { 453 supported_modes[i] = le64_to_cpu(ethm.supported_modes[i]); 454 advertised_modes[i] = le64_to_cpu(ethm.advertised_modes[i]); 455 } 456 457 for (u32 i = 0; i < NFP_MEDIA_LINK_MODES_NUMBER; i++) { 458 if (i < 64) { 459 if (supported_modes[0] & BIT_ULL(i)) { 460 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 461 cmd->link_modes.supported); 462 __set_bit(nfp_eth_media_table[i].speed, 463 port->speed_bitmap); 464 } 465 466 if (advertised_modes[0] & BIT_ULL(i)) 467 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 468 cmd->link_modes.advertising); 469 } else { 470 if (supported_modes[1] & BIT_ULL(i - 64)) { 471 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 472 cmd->link_modes.supported); 473 __set_bit(nfp_eth_media_table[i].speed, 474 port->speed_bitmap); 475 } 476 477 if (advertised_modes[1] & BIT_ULL(i - 64)) 478 __set_bit(nfp_eth_media_table[i].ethtool_link_mode, 479 cmd->link_modes.advertising); 480 } 481 } 482 } 483 484 /** 485 * nfp_net_get_link_ksettings - Get Link Speed settings 486 * @netdev: network interface device structure 487 * @cmd: ethtool command 488 * 489 * Reports speed settings based on info in the BAR provided by the fw. 490 */ 491 static int 492 nfp_net_get_link_ksettings(struct net_device *netdev, 493 struct ethtool_link_ksettings *cmd) 494 { 495 struct nfp_eth_table_port *eth_port; 496 struct nfp_port *port; 497 struct nfp_net *nn; 498 unsigned int speed; 499 u16 sts; 500 501 /* Init to unknowns */ 502 ethtool_link_ksettings_zero_link_mode(cmd, supported); 503 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 504 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 505 cmd->base.port = PORT_OTHER; 506 cmd->base.speed = SPEED_UNKNOWN; 507 cmd->base.duplex = DUPLEX_UNKNOWN; 508 509 port = nfp_port_from_netdev(netdev); 510 eth_port = nfp_port_get_eth_port(port); 511 if (eth_port) { 512 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 513 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 514 nfp_add_media_link_mode(port, eth_port, cmd); 515 if (eth_port->supp_aneg) { 516 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 517 if (eth_port->aneg == NFP_ANEG_AUTO) { 518 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 519 cmd->base.autoneg = AUTONEG_ENABLE; 520 } 521 } 522 nfp_net_set_fec_link_mode(eth_port, cmd); 523 } 524 525 if (!netif_carrier_ok(netdev)) 526 return 0; 527 528 /* Use link speed from ETH table if available, otherwise try the BAR */ 529 if (eth_port) { 530 cmd->base.port = eth_port->port_type; 531 cmd->base.speed = eth_port->speed; 532 cmd->base.duplex = DUPLEX_FULL; 533 return 0; 534 } 535 536 if (!nfp_netdev_is_nfp_net(netdev)) 537 return -EOPNOTSUPP; 538 nn = netdev_priv(netdev); 539 540 sts = nn_readw(nn, NFP_NET_CFG_STS); 541 speed = nfp_net_lr2speed(FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts)); 542 if (!speed) 543 return -EOPNOTSUPP; 544 545 if (speed != SPEED_UNKNOWN) { 546 cmd->base.speed = speed; 547 cmd->base.duplex = DUPLEX_FULL; 548 } 549 550 return 0; 551 } 552 553 static int 554 nfp_net_set_link_ksettings(struct net_device *netdev, 555 const struct ethtool_link_ksettings *cmd) 556 { 557 bool req_aneg = (cmd->base.autoneg == AUTONEG_ENABLE); 558 struct nfp_eth_table_port *eth_port; 559 struct nfp_port *port; 560 struct nfp_nsp *nsp; 561 int err; 562 563 port = nfp_port_from_netdev(netdev); 564 eth_port = __nfp_port_get_eth_port(port); 565 if (!eth_port) 566 return -EOPNOTSUPP; 567 568 if (netif_running(netdev)) { 569 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n"); 570 return -EBUSY; 571 } 572 573 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index); 574 if (IS_ERR(nsp)) 575 return PTR_ERR(nsp); 576 577 if (req_aneg && !eth_port->supp_aneg) { 578 netdev_warn(netdev, "Autoneg is not supported.\n"); 579 err = -EOPNOTSUPP; 580 goto err_bad_set; 581 } 582 583 err = __nfp_eth_set_aneg(nsp, req_aneg ? NFP_ANEG_AUTO : NFP_ANEG_DISABLED); 584 if (err) 585 goto err_bad_set; 586 587 if (cmd->base.speed != SPEED_UNKNOWN) { 588 u32 speed = cmd->base.speed / eth_port->lanes; 589 bool is_supported = false; 590 591 for (u32 i = 0; i < NFP_SUP_SPEED_NUMBER; i++) { 592 if (cmd->base.speed == nfp_eth_speed_map[i] && 593 test_bit(i, port->speed_bitmap)) { 594 is_supported = true; 595 break; 596 } 597 } 598 599 if (!is_supported) { 600 netdev_err(netdev, "Speed %u is not supported.\n", 601 cmd->base.speed); 602 err = -EINVAL; 603 goto err_bad_set; 604 } 605 606 if (req_aneg) { 607 netdev_err(netdev, "Speed changing is not allowed when working on autoneg mode.\n"); 608 err = -EINVAL; 609 goto err_bad_set; 610 } 611 612 err = __nfp_eth_set_speed(nsp, speed); 613 if (err) 614 goto err_bad_set; 615 } 616 617 err = nfp_eth_config_commit_end(nsp); 618 if (err > 0) 619 return 0; /* no change */ 620 621 nfp_net_refresh_port_table(port); 622 623 return err; 624 625 err_bad_set: 626 nfp_eth_config_cleanup_end(nsp); 627 return err; 628 } 629 630 static void nfp_net_get_ringparam(struct net_device *netdev, 631 struct ethtool_ringparam *ring, 632 struct kernel_ethtool_ringparam *kernel_ring, 633 struct netlink_ext_ack *extack) 634 { 635 struct nfp_net *nn = netdev_priv(netdev); 636 u32 qc_max = nn->dev_info->max_qc_size; 637 638 ring->rx_max_pending = qc_max; 639 ring->tx_max_pending = qc_max / nn->dp.ops->tx_min_desc_per_pkt; 640 ring->rx_pending = nn->dp.rxd_cnt; 641 ring->tx_pending = nn->dp.txd_cnt; 642 } 643 644 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt) 645 { 646 struct nfp_net_dp *dp; 647 648 dp = nfp_net_clone_dp(nn); 649 if (!dp) 650 return -ENOMEM; 651 652 dp->rxd_cnt = rxd_cnt; 653 dp->txd_cnt = txd_cnt; 654 655 return nfp_net_ring_reconfig(nn, dp, NULL); 656 } 657 658 static int nfp_net_set_ringparam(struct net_device *netdev, 659 struct ethtool_ringparam *ring, 660 struct kernel_ethtool_ringparam *kernel_ring, 661 struct netlink_ext_ack *extack) 662 { 663 u32 tx_dpp, qc_min, qc_max, rxd_cnt, txd_cnt; 664 struct nfp_net *nn = netdev_priv(netdev); 665 666 /* We don't have separate queues/rings for small/large frames. */ 667 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 668 return -EINVAL; 669 670 qc_min = nn->dev_info->min_qc_size; 671 qc_max = nn->dev_info->max_qc_size; 672 tx_dpp = nn->dp.ops->tx_min_desc_per_pkt; 673 /* Round up to supported values */ 674 rxd_cnt = roundup_pow_of_two(ring->rx_pending); 675 txd_cnt = roundup_pow_of_two(ring->tx_pending); 676 677 if (rxd_cnt < qc_min || rxd_cnt > qc_max || 678 txd_cnt < qc_min / tx_dpp || txd_cnt > qc_max / tx_dpp) 679 return -EINVAL; 680 681 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt) 682 return 0; 683 684 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n", 685 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt); 686 687 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt); 688 } 689 690 static int nfp_test_link(struct net_device *netdev) 691 { 692 if (!netif_carrier_ok(netdev) || !(netdev->flags & IFF_UP)) 693 return 1; 694 695 return 0; 696 } 697 698 static int nfp_test_nsp(struct net_device *netdev) 699 { 700 struct nfp_app *app = nfp_app_from_netdev(netdev); 701 struct nfp_nsp_identify *nspi; 702 struct nfp_nsp *nsp; 703 int err; 704 705 nsp = nfp_nsp_open(app->cpp); 706 if (IS_ERR(nsp)) { 707 err = PTR_ERR(nsp); 708 netdev_info(netdev, "NSP Test: failed to access the NSP: %d\n", err); 709 goto exit; 710 } 711 712 if (nfp_nsp_get_abi_ver_minor(nsp) < 15) { 713 err = -EOPNOTSUPP; 714 goto exit_close_nsp; 715 } 716 717 nspi = kzalloc(sizeof(*nspi), GFP_KERNEL); 718 if (!nspi) { 719 err = -ENOMEM; 720 goto exit_close_nsp; 721 } 722 723 err = nfp_nsp_read_identify(nsp, nspi, sizeof(*nspi)); 724 if (err < 0) 725 netdev_info(netdev, "NSP Test: reading bsp version failed %d\n", err); 726 727 kfree(nspi); 728 exit_close_nsp: 729 nfp_nsp_close(nsp); 730 exit: 731 return err; 732 } 733 734 static int nfp_test_fw(struct net_device *netdev) 735 { 736 struct nfp_net *nn = netdev_priv(netdev); 737 int err; 738 739 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_GEN); 740 if (err) 741 netdev_info(netdev, "FW Test: update failed %d\n", err); 742 743 return err; 744 } 745 746 static int nfp_test_reg(struct net_device *netdev) 747 { 748 struct nfp_app *app = nfp_app_from_netdev(netdev); 749 struct nfp_cpp *cpp = app->cpp; 750 u32 model = nfp_cpp_model(cpp); 751 u32 value; 752 int err; 753 754 err = nfp_cpp_model_autodetect(cpp, &value); 755 if (err < 0) { 756 netdev_info(netdev, "REG Test: NFP model detection failed %d\n", err); 757 return err; 758 } 759 760 return (value == model) ? 0 : 1; 761 } 762 763 static bool link_test_supported(struct net_device *netdev) 764 { 765 return true; 766 } 767 768 static bool nsp_test_supported(struct net_device *netdev) 769 { 770 if (nfp_app_from_netdev(netdev)) 771 return true; 772 773 return false; 774 } 775 776 static bool fw_test_supported(struct net_device *netdev) 777 { 778 if (nfp_netdev_is_nfp_net(netdev)) 779 return true; 780 781 return false; 782 } 783 784 static bool reg_test_supported(struct net_device *netdev) 785 { 786 if (nfp_app_from_netdev(netdev)) 787 return true; 788 789 return false; 790 } 791 792 static struct nfp_self_test_item { 793 char name[ETH_GSTRING_LEN]; 794 bool (*is_supported)(struct net_device *dev); 795 int (*func)(struct net_device *dev); 796 } nfp_self_test[] = { 797 {"Link Test", link_test_supported, nfp_test_link}, 798 {"NSP Test", nsp_test_supported, nfp_test_nsp}, 799 {"Firmware Test", fw_test_supported, nfp_test_fw}, 800 {"Register Test", reg_test_supported, nfp_test_reg} 801 }; 802 803 #define NFP_TEST_TOTAL_NUM ARRAY_SIZE(nfp_self_test) 804 805 static void nfp_get_self_test_strings(struct net_device *netdev, u8 *data) 806 { 807 int i; 808 809 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 810 if (nfp_self_test[i].is_supported(netdev)) 811 ethtool_sprintf(&data, nfp_self_test[i].name); 812 } 813 814 static int nfp_get_self_test_count(struct net_device *netdev) 815 { 816 int i, count = 0; 817 818 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 819 if (nfp_self_test[i].is_supported(netdev)) 820 count++; 821 822 return count; 823 } 824 825 static void nfp_net_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 826 u64 *data) 827 { 828 int i, ret, count = 0; 829 830 netdev_info(netdev, "Start self test\n"); 831 832 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) { 833 if (nfp_self_test[i].is_supported(netdev)) { 834 ret = nfp_self_test[i].func(netdev); 835 if (ret) 836 eth_test->flags |= ETH_TEST_FL_FAILED; 837 data[count++] = ret; 838 } 839 } 840 841 netdev_info(netdev, "Test end\n"); 842 } 843 844 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev) 845 { 846 struct nfp_net *nn = netdev_priv(netdev); 847 848 return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS + 849 NN_CTRL_PATH_STATS; 850 } 851 852 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data) 853 { 854 struct nfp_net *nn = netdev_priv(netdev); 855 int i; 856 857 for (i = 0; i < nn->max_r_vecs; i++) { 858 ethtool_sprintf(&data, "rvec_%u_rx_pkts", i); 859 ethtool_sprintf(&data, "rvec_%u_tx_pkts", i); 860 ethtool_sprintf(&data, "rvec_%u_tx_busy", i); 861 } 862 863 ethtool_sprintf(&data, "hw_rx_csum_ok"); 864 ethtool_sprintf(&data, "hw_rx_csum_inner_ok"); 865 ethtool_sprintf(&data, "hw_rx_csum_complete"); 866 ethtool_sprintf(&data, "hw_rx_csum_err"); 867 ethtool_sprintf(&data, "rx_replace_buf_alloc_fail"); 868 ethtool_sprintf(&data, "rx_tls_decrypted_packets"); 869 ethtool_sprintf(&data, "hw_tx_csum"); 870 ethtool_sprintf(&data, "hw_tx_inner_csum"); 871 ethtool_sprintf(&data, "tx_gather"); 872 ethtool_sprintf(&data, "tx_lso"); 873 ethtool_sprintf(&data, "tx_tls_encrypted_packets"); 874 ethtool_sprintf(&data, "tx_tls_ooo"); 875 ethtool_sprintf(&data, "tx_tls_drop_no_sync_data"); 876 877 ethtool_sprintf(&data, "hw_tls_no_space"); 878 ethtool_sprintf(&data, "rx_tls_resync_req_ok"); 879 ethtool_sprintf(&data, "rx_tls_resync_req_ign"); 880 ethtool_sprintf(&data, "rx_tls_resync_sent"); 881 882 return data; 883 } 884 885 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data) 886 { 887 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {}; 888 struct nfp_net *nn = netdev_priv(netdev); 889 u64 tmp[NN_RVEC_GATHER_STATS]; 890 unsigned int i, j; 891 892 for (i = 0; i < nn->max_r_vecs; i++) { 893 unsigned int start; 894 895 do { 896 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync); 897 data[0] = nn->r_vecs[i].rx_pkts; 898 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok; 899 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok; 900 tmp[2] = nn->r_vecs[i].hw_csum_rx_complete; 901 tmp[3] = nn->r_vecs[i].hw_csum_rx_error; 902 tmp[4] = nn->r_vecs[i].rx_replace_buf_alloc_fail; 903 tmp[5] = nn->r_vecs[i].hw_tls_rx; 904 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start)); 905 906 do { 907 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync); 908 data[1] = nn->r_vecs[i].tx_pkts; 909 data[2] = nn->r_vecs[i].tx_busy; 910 tmp[6] = nn->r_vecs[i].hw_csum_tx; 911 tmp[7] = nn->r_vecs[i].hw_csum_tx_inner; 912 tmp[8] = nn->r_vecs[i].tx_gather; 913 tmp[9] = nn->r_vecs[i].tx_lso; 914 tmp[10] = nn->r_vecs[i].hw_tls_tx; 915 tmp[11] = nn->r_vecs[i].tls_tx_fallback; 916 tmp[12] = nn->r_vecs[i].tls_tx_no_fallback; 917 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start)); 918 919 data += NN_RVEC_PER_Q_STATS; 920 921 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 922 gathered_stats[j] += tmp[j]; 923 } 924 925 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 926 *data++ = gathered_stats[j]; 927 928 *data++ = atomic_read(&nn->ktls_no_space); 929 *data++ = atomic_read(&nn->ktls_rx_resync_req); 930 *data++ = atomic_read(&nn->ktls_rx_resync_ign); 931 *data++ = atomic_read(&nn->ktls_rx_resync_sent); 932 933 return data; 934 } 935 936 static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs) 937 { 938 return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4; 939 } 940 941 static u8 * 942 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr) 943 { 944 int swap_off, i; 945 946 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2); 947 /* If repr is true first add SWITCH_STATS_LEN and then subtract it 948 * effectively swapping the RX and TX statistics (giving us the RX 949 * and TX from perspective of the switch). 950 */ 951 swap_off = repr * NN_ET_SWITCH_STATS_LEN; 952 953 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++) 954 ethtool_sprintf(&data, nfp_net_et_stats[i + swap_off].name); 955 956 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++) 957 ethtool_sprintf(&data, nfp_net_et_stats[i - swap_off].name); 958 959 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++) 960 ethtool_sprintf(&data, nfp_net_et_stats[i].name); 961 962 for (i = 0; i < num_vecs; i++) { 963 ethtool_sprintf(&data, "rxq_%u_pkts", i); 964 ethtool_sprintf(&data, "rxq_%u_bytes", i); 965 ethtool_sprintf(&data, "txq_%u_pkts", i); 966 ethtool_sprintf(&data, "txq_%u_bytes", i); 967 } 968 969 return data; 970 } 971 972 static u64 * 973 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs) 974 { 975 unsigned int i; 976 977 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++) 978 *data++ = readq(mem + nfp_net_et_stats[i].off); 979 980 for (i = 0; i < num_vecs; i++) { 981 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 982 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 983 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 984 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 985 } 986 987 return data; 988 } 989 990 static unsigned int nfp_vnic_get_tlv_stats_count(struct nfp_net *nn) 991 { 992 return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4; 993 } 994 995 static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data) 996 { 997 unsigned int i, id; 998 u8 __iomem *mem; 999 u64 id_word = 0; 1000 1001 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 1002 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) { 1003 if (!(i % 4)) 1004 id_word = readq(mem + i * 2); 1005 1006 id = (u16)id_word; 1007 id_word >>= 16; 1008 1009 if (id < ARRAY_SIZE(nfp_tlv_stat_names) && 1010 nfp_tlv_stat_names[id][0]) { 1011 memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN); 1012 data += ETH_GSTRING_LEN; 1013 } else { 1014 ethtool_sprintf(&data, "dev_unknown_stat%u", id); 1015 } 1016 } 1017 1018 for (i = 0; i < nn->max_r_vecs; i++) { 1019 ethtool_sprintf(&data, "rxq_%u_pkts", i); 1020 ethtool_sprintf(&data, "rxq_%u_bytes", i); 1021 ethtool_sprintf(&data, "txq_%u_pkts", i); 1022 ethtool_sprintf(&data, "txq_%u_bytes", i); 1023 } 1024 1025 return data; 1026 } 1027 1028 static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data) 1029 { 1030 u8 __iomem *mem; 1031 unsigned int i; 1032 1033 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 1034 mem += roundup(2 * nn->tlv_caps.vnic_stats_cnt, 8); 1035 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) 1036 *data++ = readq(mem + i * 8); 1037 1038 mem = nn->dp.ctrl_bar; 1039 for (i = 0; i < nn->max_r_vecs; i++) { 1040 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 1041 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 1042 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 1043 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 1044 } 1045 1046 return data; 1047 } 1048 1049 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev) 1050 { 1051 struct nfp_port *port; 1052 1053 port = nfp_port_from_netdev(netdev); 1054 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 1055 return 0; 1056 1057 return ARRAY_SIZE(nfp_mac_et_stats); 1058 } 1059 1060 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data) 1061 { 1062 struct nfp_port *port; 1063 unsigned int i; 1064 1065 port = nfp_port_from_netdev(netdev); 1066 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 1067 return data; 1068 1069 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 1070 ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name); 1071 1072 return data; 1073 } 1074 1075 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data) 1076 { 1077 struct nfp_port *port; 1078 unsigned int i; 1079 1080 port = nfp_port_from_netdev(netdev); 1081 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 1082 return data; 1083 1084 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 1085 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off); 1086 1087 return data; 1088 } 1089 1090 static void nfp_net_get_strings(struct net_device *netdev, 1091 u32 stringset, u8 *data) 1092 { 1093 struct nfp_net *nn = netdev_priv(netdev); 1094 1095 switch (stringset) { 1096 case ETH_SS_STATS: 1097 data = nfp_vnic_get_sw_stats_strings(netdev, data); 1098 if (!nn->tlv_caps.vnic_stats_off) 1099 data = nfp_vnic_get_hw_stats_strings(data, 1100 nn->max_r_vecs, 1101 false); 1102 else 1103 data = nfp_vnic_get_tlv_stats_strings(nn, data); 1104 data = nfp_mac_get_stats_strings(netdev, data); 1105 data = nfp_app_port_get_stats_strings(nn->port, data); 1106 break; 1107 case ETH_SS_TEST: 1108 nfp_get_self_test_strings(netdev, data); 1109 break; 1110 } 1111 } 1112 1113 static void 1114 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 1115 u64 *data) 1116 { 1117 struct nfp_net *nn = netdev_priv(netdev); 1118 1119 data = nfp_vnic_get_sw_stats(netdev, data); 1120 if (!nn->tlv_caps.vnic_stats_off) 1121 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar, 1122 nn->max_r_vecs); 1123 else 1124 data = nfp_vnic_get_tlv_stats(nn, data); 1125 data = nfp_mac_get_stats(netdev, data); 1126 data = nfp_app_port_get_stats(nn->port, data); 1127 } 1128 1129 static int nfp_net_get_sset_count(struct net_device *netdev, int sset) 1130 { 1131 struct nfp_net *nn = netdev_priv(netdev); 1132 unsigned int cnt; 1133 1134 switch (sset) { 1135 case ETH_SS_STATS: 1136 cnt = nfp_vnic_get_sw_stats_count(netdev); 1137 if (!nn->tlv_caps.vnic_stats_off) 1138 cnt += nfp_vnic_get_hw_stats_count(nn->max_r_vecs); 1139 else 1140 cnt += nfp_vnic_get_tlv_stats_count(nn); 1141 cnt += nfp_mac_get_stats_count(netdev); 1142 cnt += nfp_app_port_get_stats_count(nn->port); 1143 return cnt; 1144 case ETH_SS_TEST: 1145 return nfp_get_self_test_count(netdev); 1146 default: 1147 return -EOPNOTSUPP; 1148 } 1149 } 1150 1151 static void nfp_port_get_strings(struct net_device *netdev, 1152 u32 stringset, u8 *data) 1153 { 1154 struct nfp_port *port = nfp_port_from_netdev(netdev); 1155 1156 switch (stringset) { 1157 case ETH_SS_STATS: 1158 if (nfp_port_is_vnic(port)) 1159 data = nfp_vnic_get_hw_stats_strings(data, 0, true); 1160 else 1161 data = nfp_mac_get_stats_strings(netdev, data); 1162 data = nfp_app_port_get_stats_strings(port, data); 1163 break; 1164 case ETH_SS_TEST: 1165 nfp_get_self_test_strings(netdev, data); 1166 break; 1167 } 1168 } 1169 1170 static void 1171 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 1172 u64 *data) 1173 { 1174 struct nfp_port *port = nfp_port_from_netdev(netdev); 1175 1176 if (nfp_port_is_vnic(port)) 1177 data = nfp_vnic_get_hw_stats(data, port->vnic, 0); 1178 else 1179 data = nfp_mac_get_stats(netdev, data); 1180 data = nfp_app_port_get_stats(port, data); 1181 } 1182 1183 static int nfp_port_get_sset_count(struct net_device *netdev, int sset) 1184 { 1185 struct nfp_port *port = nfp_port_from_netdev(netdev); 1186 unsigned int count; 1187 1188 switch (sset) { 1189 case ETH_SS_STATS: 1190 if (nfp_port_is_vnic(port)) 1191 count = nfp_vnic_get_hw_stats_count(0); 1192 else 1193 count = nfp_mac_get_stats_count(netdev); 1194 count += nfp_app_port_get_stats_count(port); 1195 return count; 1196 case ETH_SS_TEST: 1197 return nfp_get_self_test_count(netdev); 1198 default: 1199 return -EOPNOTSUPP; 1200 } 1201 } 1202 1203 static int nfp_port_fec_ethtool_to_nsp(u32 fec) 1204 { 1205 switch (fec) { 1206 case ETHTOOL_FEC_AUTO: 1207 return NFP_FEC_AUTO_BIT; 1208 case ETHTOOL_FEC_OFF: 1209 return NFP_FEC_DISABLED_BIT; 1210 case ETHTOOL_FEC_RS: 1211 return NFP_FEC_REED_SOLOMON_BIT; 1212 case ETHTOOL_FEC_BASER: 1213 return NFP_FEC_BASER_BIT; 1214 default: 1215 /* NSP only supports a single mode at a time */ 1216 return -EOPNOTSUPP; 1217 } 1218 } 1219 1220 static u32 nfp_port_fec_nsp_to_ethtool(u32 fec) 1221 { 1222 u32 result = 0; 1223 1224 if (fec & NFP_FEC_AUTO) 1225 result |= ETHTOOL_FEC_AUTO; 1226 if (fec & NFP_FEC_BASER) 1227 result |= ETHTOOL_FEC_BASER; 1228 if (fec & NFP_FEC_REED_SOLOMON) 1229 result |= ETHTOOL_FEC_RS; 1230 if (fec & NFP_FEC_DISABLED) 1231 result |= ETHTOOL_FEC_OFF; 1232 1233 return result ?: ETHTOOL_FEC_NONE; 1234 } 1235 1236 static int 1237 nfp_port_get_fecparam(struct net_device *netdev, 1238 struct ethtool_fecparam *param) 1239 { 1240 struct nfp_eth_table_port *eth_port; 1241 struct nfp_port *port; 1242 1243 param->active_fec = ETHTOOL_FEC_NONE; 1244 param->fec = ETHTOOL_FEC_NONE; 1245 1246 port = nfp_port_from_netdev(netdev); 1247 eth_port = nfp_port_get_eth_port(port); 1248 if (!eth_port) 1249 return -EOPNOTSUPP; 1250 1251 if (!nfp_eth_can_support_fec(eth_port)) 1252 return 0; 1253 1254 param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported); 1255 param->active_fec = nfp_port_fec_nsp_to_ethtool(BIT(eth_port->act_fec)); 1256 1257 return 0; 1258 } 1259 1260 static int 1261 nfp_port_set_fecparam(struct net_device *netdev, 1262 struct ethtool_fecparam *param) 1263 { 1264 struct nfp_eth_table_port *eth_port; 1265 struct nfp_port *port; 1266 int err, fec; 1267 1268 port = nfp_port_from_netdev(netdev); 1269 eth_port = nfp_port_get_eth_port(port); 1270 if (!eth_port) 1271 return -EOPNOTSUPP; 1272 1273 if (!nfp_eth_can_support_fec(eth_port)) 1274 return -EOPNOTSUPP; 1275 1276 fec = nfp_port_fec_ethtool_to_nsp(param->fec); 1277 if (fec < 0) 1278 return fec; 1279 1280 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec); 1281 if (!err) 1282 /* Only refresh if we did something */ 1283 nfp_net_refresh_port_table(port); 1284 1285 return err < 0 ? err : 0; 1286 } 1287 1288 /* RX network flow classification (RSS, filters, etc) 1289 */ 1290 static u32 ethtool_flow_to_nfp_flag(u32 flow_type) 1291 { 1292 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = { 1293 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP, 1294 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP, 1295 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP, 1296 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP, 1297 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4, 1298 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6, 1299 }; 1300 1301 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp)) 1302 return 0; 1303 1304 return xlate_ethtool_to_nfp[flow_type]; 1305 } 1306 1307 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn, 1308 struct ethtool_rxnfc *cmd) 1309 { 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 static int nfp_net_get_rxnfc(struct net_device *netdev, 1329 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1330 { 1331 struct nfp_net *nn = netdev_priv(netdev); 1332 1333 switch (cmd->cmd) { 1334 case ETHTOOL_GRXRINGS: 1335 cmd->data = nn->dp.num_rx_rings; 1336 return 0; 1337 case ETHTOOL_GRXFH: 1338 return nfp_net_get_rss_hash_opts(nn, cmd); 1339 default: 1340 return -EOPNOTSUPP; 1341 } 1342 } 1343 1344 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn, 1345 struct ethtool_rxnfc *nfc) 1346 { 1347 u32 new_rss_cfg = nn->rss_cfg; 1348 u32 nfp_rss_flag; 1349 int err; 1350 1351 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1352 return -EOPNOTSUPP; 1353 1354 /* RSS only supports IP SA/DA and L4 src/dst ports */ 1355 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1356 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1357 return -EINVAL; 1358 1359 /* We need at least the IP SA/DA fields for hashing */ 1360 if (!(nfc->data & RXH_IP_SRC) || 1361 !(nfc->data & RXH_IP_DST)) 1362 return -EINVAL; 1363 1364 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type); 1365 if (!nfp_rss_flag) 1366 return -EINVAL; 1367 1368 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1369 case 0: 1370 new_rss_cfg &= ~nfp_rss_flag; 1371 break; 1372 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1373 new_rss_cfg |= nfp_rss_flag; 1374 break; 1375 default: 1376 return -EINVAL; 1377 } 1378 1379 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc); 1380 new_rss_cfg |= NFP_NET_CFG_RSS_MASK; 1381 1382 if (new_rss_cfg == nn->rss_cfg) 1383 return 0; 1384 1385 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL); 1386 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1387 if (err) 1388 return err; 1389 1390 nn->rss_cfg = new_rss_cfg; 1391 1392 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg); 1393 return 0; 1394 } 1395 1396 static int nfp_net_set_rxnfc(struct net_device *netdev, 1397 struct ethtool_rxnfc *cmd) 1398 { 1399 struct nfp_net *nn = netdev_priv(netdev); 1400 1401 switch (cmd->cmd) { 1402 case ETHTOOL_SRXFH: 1403 return nfp_net_set_rss_hash_opt(nn, cmd); 1404 default: 1405 return -EOPNOTSUPP; 1406 } 1407 } 1408 1409 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev) 1410 { 1411 struct nfp_net *nn = netdev_priv(netdev); 1412 1413 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1414 return 0; 1415 1416 return ARRAY_SIZE(nn->rss_itbl); 1417 } 1418 1419 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev) 1420 { 1421 struct nfp_net *nn = netdev_priv(netdev); 1422 1423 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1424 return -EOPNOTSUPP; 1425 1426 return nfp_net_rss_key_sz(nn); 1427 } 1428 1429 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1430 u8 *hfunc) 1431 { 1432 struct nfp_net *nn = netdev_priv(netdev); 1433 int i; 1434 1435 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1436 return -EOPNOTSUPP; 1437 1438 if (indir) 1439 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1440 indir[i] = nn->rss_itbl[i]; 1441 if (key) 1442 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn)); 1443 if (hfunc) { 1444 *hfunc = nn->rss_hfunc; 1445 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT) 1446 *hfunc = ETH_RSS_HASH_UNKNOWN; 1447 } 1448 1449 return 0; 1450 } 1451 1452 static int nfp_net_set_rxfh(struct net_device *netdev, 1453 const u32 *indir, const u8 *key, 1454 const u8 hfunc) 1455 { 1456 struct nfp_net *nn = netdev_priv(netdev); 1457 int i; 1458 1459 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) || 1460 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc)) 1461 return -EOPNOTSUPP; 1462 1463 if (!key && !indir) 1464 return 0; 1465 1466 if (key) { 1467 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn)); 1468 nfp_net_rss_write_key(nn); 1469 } 1470 if (indir) { 1471 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1472 nn->rss_itbl[i] = indir[i]; 1473 1474 nfp_net_rss_write_itbl(nn); 1475 } 1476 1477 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1478 } 1479 1480 /* Dump BAR registers 1481 */ 1482 static int nfp_net_get_regs_len(struct net_device *netdev) 1483 { 1484 return NFP_NET_CFG_BAR_SZ; 1485 } 1486 1487 static void nfp_net_get_regs(struct net_device *netdev, 1488 struct ethtool_regs *regs, void *p) 1489 { 1490 struct nfp_net *nn = netdev_priv(netdev); 1491 u32 *regs_buf = p; 1492 int i; 1493 1494 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION); 1495 1496 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++) 1497 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32))); 1498 } 1499 1500 static int nfp_net_get_coalesce(struct net_device *netdev, 1501 struct ethtool_coalesce *ec, 1502 struct kernel_ethtool_coalesce *kernel_coal, 1503 struct netlink_ext_ack *extack) 1504 { 1505 struct nfp_net *nn = netdev_priv(netdev); 1506 1507 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1508 return -EINVAL; 1509 1510 ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on; 1511 ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on; 1512 1513 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs; 1514 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames; 1515 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs; 1516 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames; 1517 1518 return 0; 1519 } 1520 1521 /* Other debug dumps 1522 */ 1523 static int 1524 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer) 1525 { 1526 struct nfp_resource *res; 1527 int ret; 1528 1529 if (!app) 1530 return -EOPNOTSUPP; 1531 1532 dump->version = 1; 1533 dump->flag = NFP_DUMP_NSP_DIAG; 1534 1535 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG); 1536 if (IS_ERR(res)) 1537 return PTR_ERR(res); 1538 1539 if (buffer) { 1540 if (dump->len != nfp_resource_size(res)) { 1541 ret = -EINVAL; 1542 goto exit_release; 1543 } 1544 1545 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res), 1546 nfp_resource_address(res), 1547 buffer, dump->len); 1548 if (ret != dump->len) 1549 ret = ret < 0 ? ret : -EIO; 1550 else 1551 ret = 0; 1552 } else { 1553 dump->len = nfp_resource_size(res); 1554 ret = 0; 1555 } 1556 exit_release: 1557 nfp_resource_release(res); 1558 1559 return ret; 1560 } 1561 1562 /* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV 1563 * based dumps), since flag 0 (default) calculates the length in 1564 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump 1565 * without setting the flag first, for backward compatibility. 1566 */ 1567 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val) 1568 { 1569 struct nfp_app *app = nfp_app_from_netdev(netdev); 1570 s64 len; 1571 1572 if (!app) 1573 return -EOPNOTSUPP; 1574 1575 if (val->flag == NFP_DUMP_NSP_DIAG) { 1576 app->pf->dump_flag = val->flag; 1577 return 0; 1578 } 1579 1580 if (!app->pf->dumpspec) 1581 return -EOPNOTSUPP; 1582 1583 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec, 1584 val->flag); 1585 if (len < 0) 1586 return len; 1587 1588 app->pf->dump_flag = val->flag; 1589 app->pf->dump_len = len; 1590 1591 return 0; 1592 } 1593 1594 static int 1595 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump) 1596 { 1597 struct nfp_app *app = nfp_app_from_netdev(netdev); 1598 1599 if (!app) 1600 return -EOPNOTSUPP; 1601 1602 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1603 return nfp_dump_nsp_diag(app, dump, NULL); 1604 1605 dump->flag = app->pf->dump_flag; 1606 dump->len = app->pf->dump_len; 1607 1608 return 0; 1609 } 1610 1611 static int 1612 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump, 1613 void *buffer) 1614 { 1615 struct nfp_app *app = nfp_app_from_netdev(netdev); 1616 1617 if (!app) 1618 return -EOPNOTSUPP; 1619 1620 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1621 return nfp_dump_nsp_diag(app, dump, buffer); 1622 1623 dump->flag = app->pf->dump_flag; 1624 dump->len = app->pf->dump_len; 1625 1626 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump, 1627 buffer); 1628 } 1629 1630 static int 1631 nfp_port_get_module_info(struct net_device *netdev, 1632 struct ethtool_modinfo *modinfo) 1633 { 1634 struct nfp_eth_table_port *eth_port; 1635 struct nfp_port *port; 1636 unsigned int read_len; 1637 struct nfp_nsp *nsp; 1638 int err = 0; 1639 u8 data; 1640 1641 port = nfp_port_from_netdev(netdev); 1642 if (!port) 1643 return -EOPNOTSUPP; 1644 1645 /* update port state to get latest interface */ 1646 set_bit(NFP_PORT_CHANGED, &port->flags); 1647 eth_port = nfp_port_get_eth_port(port); 1648 if (!eth_port) 1649 return -EOPNOTSUPP; 1650 1651 nsp = nfp_nsp_open(port->app->cpp); 1652 if (IS_ERR(nsp)) { 1653 err = PTR_ERR(nsp); 1654 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1655 return err; 1656 } 1657 1658 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1659 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1660 err = -EOPNOTSUPP; 1661 goto exit_close_nsp; 1662 } 1663 1664 switch (eth_port->interface) { 1665 case NFP_INTERFACE_SFP: 1666 case NFP_INTERFACE_SFP28: 1667 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1668 SFP_SFF8472_COMPLIANCE, &data, 1669 1, &read_len); 1670 if (err < 0) 1671 goto exit_close_nsp; 1672 1673 if (!data) { 1674 modinfo->type = ETH_MODULE_SFF_8079; 1675 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 1676 } else { 1677 modinfo->type = ETH_MODULE_SFF_8472; 1678 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 1679 } 1680 break; 1681 case NFP_INTERFACE_QSFP: 1682 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1683 SFP_SFF_REV_COMPLIANCE, &data, 1684 1, &read_len); 1685 if (err < 0) 1686 goto exit_close_nsp; 1687 1688 if (data < 0x3) { 1689 modinfo->type = ETH_MODULE_SFF_8436; 1690 modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN; 1691 } else { 1692 modinfo->type = ETH_MODULE_SFF_8636; 1693 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1694 } 1695 break; 1696 case NFP_INTERFACE_QSFP28: 1697 modinfo->type = ETH_MODULE_SFF_8636; 1698 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1699 break; 1700 default: 1701 netdev_err(netdev, "Unsupported module 0x%x detected\n", 1702 eth_port->interface); 1703 err = -EINVAL; 1704 } 1705 1706 exit_close_nsp: 1707 nfp_nsp_close(nsp); 1708 return err; 1709 } 1710 1711 static int 1712 nfp_port_get_module_eeprom(struct net_device *netdev, 1713 struct ethtool_eeprom *eeprom, u8 *data) 1714 { 1715 struct nfp_eth_table_port *eth_port; 1716 struct nfp_port *port; 1717 struct nfp_nsp *nsp; 1718 int err; 1719 1720 port = nfp_port_from_netdev(netdev); 1721 eth_port = __nfp_port_get_eth_port(port); 1722 if (!eth_port) 1723 return -EOPNOTSUPP; 1724 1725 nsp = nfp_nsp_open(port->app->cpp); 1726 if (IS_ERR(nsp)) { 1727 err = PTR_ERR(nsp); 1728 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1729 return err; 1730 } 1731 1732 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1733 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1734 err = -EOPNOTSUPP; 1735 goto exit_close_nsp; 1736 } 1737 1738 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1739 eeprom->offset, data, eeprom->len, 1740 &eeprom->len); 1741 if (err < 0) { 1742 if (eeprom->len) { 1743 netdev_warn(netdev, 1744 "Incomplete read from module EEPROM: %d\n", 1745 err); 1746 err = 0; 1747 } else { 1748 netdev_err(netdev, 1749 "Reading from module EEPROM failed: %d\n", 1750 err); 1751 } 1752 } 1753 1754 exit_close_nsp: 1755 nfp_nsp_close(nsp); 1756 return err; 1757 } 1758 1759 static int nfp_net_set_coalesce(struct net_device *netdev, 1760 struct ethtool_coalesce *ec, 1761 struct kernel_ethtool_coalesce *kernel_coal, 1762 struct netlink_ext_ack *extack) 1763 { 1764 struct nfp_net *nn = netdev_priv(netdev); 1765 unsigned int factor; 1766 1767 /* Compute factor used to convert coalesce '_usecs' parameters to 1768 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp 1769 * count. 1770 */ 1771 factor = nn->tlv_caps.me_freq_mhz / 16; 1772 1773 /* Each pair of (usecs, max_frames) fields specifies that interrupts 1774 * should be coalesced until 1775 * (usecs > 0 && time_since_first_completion >= usecs) || 1776 * (max_frames > 0 && completed_frames >= max_frames) 1777 * 1778 * It is illegal to set both usecs and max_frames to zero as this would 1779 * cause interrupts to never be generated. To disable coalescing, set 1780 * usecs = 0 and max_frames = 1. 1781 * 1782 * Some implementations ignore the value of max_frames and use the 1783 * condition time_since_first_completion >= usecs 1784 */ 1785 1786 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1787 return -EINVAL; 1788 1789 /* ensure valid configuration */ 1790 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) 1791 return -EINVAL; 1792 1793 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) 1794 return -EINVAL; 1795 1796 if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor, 1797 ec->rx_max_coalesced_frames)) 1798 return -EINVAL; 1799 1800 if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor, 1801 ec->tx_max_coalesced_frames)) 1802 return -EINVAL; 1803 1804 /* configuration is valid */ 1805 nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce; 1806 nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce; 1807 1808 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs; 1809 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames; 1810 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs; 1811 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames; 1812 1813 /* write configuration to device */ 1814 nfp_net_coalesce_write_cfg(nn); 1815 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD); 1816 } 1817 1818 static void nfp_net_get_channels(struct net_device *netdev, 1819 struct ethtool_channels *channel) 1820 { 1821 struct nfp_net *nn = netdev_priv(netdev); 1822 unsigned int num_tx_rings; 1823 1824 num_tx_rings = nn->dp.num_tx_rings; 1825 if (nn->dp.xdp_prog) 1826 num_tx_rings -= nn->dp.num_rx_rings; 1827 1828 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs); 1829 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs); 1830 channel->max_combined = min(channel->max_rx, channel->max_tx); 1831 channel->max_other = NFP_NET_NON_Q_VECTORS; 1832 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings); 1833 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count; 1834 channel->tx_count = num_tx_rings - channel->combined_count; 1835 channel->other_count = NFP_NET_NON_Q_VECTORS; 1836 } 1837 1838 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx, 1839 unsigned int total_tx) 1840 { 1841 struct nfp_net_dp *dp; 1842 1843 dp = nfp_net_clone_dp(nn); 1844 if (!dp) 1845 return -ENOMEM; 1846 1847 dp->num_rx_rings = total_rx; 1848 dp->num_tx_rings = total_tx; 1849 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */ 1850 if (dp->xdp_prog) 1851 dp->num_tx_rings += total_rx; 1852 1853 return nfp_net_ring_reconfig(nn, dp, NULL); 1854 } 1855 1856 static int nfp_net_set_channels(struct net_device *netdev, 1857 struct ethtool_channels *channel) 1858 { 1859 struct nfp_net *nn = netdev_priv(netdev); 1860 unsigned int total_rx, total_tx; 1861 1862 /* Reject unsupported */ 1863 if (channel->other_count != NFP_NET_NON_Q_VECTORS || 1864 (channel->rx_count && channel->tx_count)) 1865 return -EINVAL; 1866 1867 total_rx = channel->combined_count + channel->rx_count; 1868 total_tx = channel->combined_count + channel->tx_count; 1869 1870 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) || 1871 total_tx > min(nn->max_tx_rings, nn->max_r_vecs)) 1872 return -EINVAL; 1873 1874 return nfp_net_set_num_rings(nn, total_rx, total_tx); 1875 } 1876 1877 static void nfp_port_get_pauseparam(struct net_device *netdev, 1878 struct ethtool_pauseparam *pause) 1879 { 1880 struct nfp_eth_table_port *eth_port; 1881 struct nfp_port *port; 1882 1883 port = nfp_port_from_netdev(netdev); 1884 eth_port = nfp_port_get_eth_port(port); 1885 if (!eth_port) 1886 return; 1887 1888 /* Currently pause frame support is fixed */ 1889 pause->autoneg = AUTONEG_DISABLE; 1890 pause->rx_pause = 1; 1891 pause->tx_pause = 1; 1892 } 1893 1894 static int nfp_net_set_phys_id(struct net_device *netdev, 1895 enum ethtool_phys_id_state state) 1896 { 1897 struct nfp_eth_table_port *eth_port; 1898 struct nfp_port *port; 1899 int err; 1900 1901 port = nfp_port_from_netdev(netdev); 1902 eth_port = __nfp_port_get_eth_port(port); 1903 if (!eth_port) 1904 return -EOPNOTSUPP; 1905 1906 switch (state) { 1907 case ETHTOOL_ID_ACTIVE: 1908 /* Control LED to blink */ 1909 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 1); 1910 break; 1911 1912 case ETHTOOL_ID_INACTIVE: 1913 /* Control LED to normal mode */ 1914 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 0); 1915 break; 1916 1917 case ETHTOOL_ID_ON: 1918 case ETHTOOL_ID_OFF: 1919 default: 1920 return -EOPNOTSUPP; 1921 } 1922 1923 return err; 1924 } 1925 1926 #define NFP_EEPROM_LEN ETH_ALEN 1927 1928 static int 1929 nfp_net_get_eeprom_len(struct net_device *netdev) 1930 { 1931 struct nfp_eth_table_port *eth_port; 1932 struct nfp_port *port; 1933 1934 port = nfp_port_from_netdev(netdev); 1935 eth_port = __nfp_port_get_eth_port(port); 1936 if (!eth_port) 1937 return 0; 1938 1939 return NFP_EEPROM_LEN; 1940 } 1941 1942 static int 1943 nfp_net_get_nsp_hwindex(struct net_device *netdev, 1944 struct nfp_nsp **nspptr, 1945 u32 *index) 1946 { 1947 struct nfp_eth_table_port *eth_port; 1948 struct nfp_port *port; 1949 struct nfp_nsp *nsp; 1950 int err; 1951 1952 port = nfp_port_from_netdev(netdev); 1953 eth_port = __nfp_port_get_eth_port(port); 1954 if (!eth_port) 1955 return -EOPNOTSUPP; 1956 1957 nsp = nfp_nsp_open(port->app->cpp); 1958 if (IS_ERR(nsp)) { 1959 err = PTR_ERR(nsp); 1960 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1961 return err; 1962 } 1963 1964 if (!nfp_nsp_has_hwinfo_lookup(nsp)) { 1965 netdev_err(netdev, "NSP doesn't support PF MAC generation\n"); 1966 nfp_nsp_close(nsp); 1967 return -EOPNOTSUPP; 1968 } 1969 1970 *nspptr = nsp; 1971 *index = eth_port->eth_index; 1972 1973 return 0; 1974 } 1975 1976 static int 1977 nfp_net_get_port_mac_by_hwinfo(struct net_device *netdev, 1978 u8 *mac_addr) 1979 { 1980 char hwinfo[32] = {}; 1981 struct nfp_nsp *nsp; 1982 u32 index; 1983 int err; 1984 1985 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 1986 if (err) 1987 return err; 1988 1989 snprintf(hwinfo, sizeof(hwinfo), "eth%u.mac", index); 1990 err = nfp_nsp_hwinfo_lookup(nsp, hwinfo, sizeof(hwinfo)); 1991 nfp_nsp_close(nsp); 1992 if (err) { 1993 netdev_err(netdev, "Reading persistent MAC address failed: %d\n", 1994 err); 1995 return -EOPNOTSUPP; 1996 } 1997 1998 if (sscanf(hwinfo, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 1999 &mac_addr[0], &mac_addr[1], &mac_addr[2], 2000 &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) { 2001 netdev_err(netdev, "Can't parse persistent MAC address (%s)\n", 2002 hwinfo); 2003 return -EOPNOTSUPP; 2004 } 2005 2006 return 0; 2007 } 2008 2009 static int 2010 nfp_net_set_port_mac_by_hwinfo(struct net_device *netdev, 2011 u8 *mac_addr) 2012 { 2013 char hwinfo[32] = {}; 2014 struct nfp_nsp *nsp; 2015 u32 index; 2016 int err; 2017 2018 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 2019 if (err) 2020 return err; 2021 2022 snprintf(hwinfo, sizeof(hwinfo), 2023 "eth%u.mac=%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 2024 index, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], 2025 mac_addr[4], mac_addr[5]); 2026 2027 err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo)); 2028 nfp_nsp_close(nsp); 2029 if (err) { 2030 netdev_err(netdev, "HWinfo set failed: %d, hwinfo: %s\n", 2031 err, hwinfo); 2032 return -EOPNOTSUPP; 2033 } 2034 2035 return 0; 2036 } 2037 2038 static int 2039 nfp_net_get_eeprom(struct net_device *netdev, 2040 struct ethtool_eeprom *eeprom, u8 *bytes) 2041 { 2042 struct nfp_app *app = nfp_app_from_netdev(netdev); 2043 u8 buf[NFP_EEPROM_LEN] = {}; 2044 2045 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 2046 return -EOPNOTSUPP; 2047 2048 if (eeprom->len == 0) 2049 return -EINVAL; 2050 2051 eeprom->magic = app->pdev->vendor | (app->pdev->device << 16); 2052 memcpy(bytes, buf + eeprom->offset, eeprom->len); 2053 2054 return 0; 2055 } 2056 2057 static int 2058 nfp_net_set_eeprom(struct net_device *netdev, 2059 struct ethtool_eeprom *eeprom, u8 *bytes) 2060 { 2061 struct nfp_app *app = nfp_app_from_netdev(netdev); 2062 u8 buf[NFP_EEPROM_LEN] = {}; 2063 2064 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 2065 return -EOPNOTSUPP; 2066 2067 if (eeprom->len == 0) 2068 return -EINVAL; 2069 2070 if (eeprom->magic != (app->pdev->vendor | app->pdev->device << 16)) 2071 return -EINVAL; 2072 2073 memcpy(buf + eeprom->offset, bytes, eeprom->len); 2074 if (nfp_net_set_port_mac_by_hwinfo(netdev, buf)) 2075 return -EOPNOTSUPP; 2076 2077 return 0; 2078 } 2079 2080 static const struct ethtool_ops nfp_net_ethtool_ops = { 2081 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 2082 ETHTOOL_COALESCE_MAX_FRAMES | 2083 ETHTOOL_COALESCE_USE_ADAPTIVE, 2084 .get_drvinfo = nfp_net_get_drvinfo, 2085 .nway_reset = nfp_net_nway_reset, 2086 .get_link = ethtool_op_get_link, 2087 .get_ringparam = nfp_net_get_ringparam, 2088 .set_ringparam = nfp_net_set_ringparam, 2089 .self_test = nfp_net_self_test, 2090 .get_strings = nfp_net_get_strings, 2091 .get_ethtool_stats = nfp_net_get_stats, 2092 .get_sset_count = nfp_net_get_sset_count, 2093 .get_rxnfc = nfp_net_get_rxnfc, 2094 .set_rxnfc = nfp_net_set_rxnfc, 2095 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size, 2096 .get_rxfh_key_size = nfp_net_get_rxfh_key_size, 2097 .get_rxfh = nfp_net_get_rxfh, 2098 .set_rxfh = nfp_net_set_rxfh, 2099 .get_regs_len = nfp_net_get_regs_len, 2100 .get_regs = nfp_net_get_regs, 2101 .set_dump = nfp_app_set_dump, 2102 .get_dump_flag = nfp_app_get_dump_flag, 2103 .get_dump_data = nfp_app_get_dump_data, 2104 .get_eeprom_len = nfp_net_get_eeprom_len, 2105 .get_eeprom = nfp_net_get_eeprom, 2106 .set_eeprom = nfp_net_set_eeprom, 2107 .get_module_info = nfp_port_get_module_info, 2108 .get_module_eeprom = nfp_port_get_module_eeprom, 2109 .get_coalesce = nfp_net_get_coalesce, 2110 .set_coalesce = nfp_net_set_coalesce, 2111 .get_channels = nfp_net_get_channels, 2112 .set_channels = nfp_net_set_channels, 2113 .get_link_ksettings = nfp_net_get_link_ksettings, 2114 .set_link_ksettings = nfp_net_set_link_ksettings, 2115 .get_fecparam = nfp_port_get_fecparam, 2116 .set_fecparam = nfp_port_set_fecparam, 2117 .get_pauseparam = nfp_port_get_pauseparam, 2118 .set_phys_id = nfp_net_set_phys_id, 2119 }; 2120 2121 const struct ethtool_ops nfp_port_ethtool_ops = { 2122 .get_drvinfo = nfp_app_get_drvinfo, 2123 .nway_reset = nfp_net_nway_reset, 2124 .get_link = ethtool_op_get_link, 2125 .get_strings = nfp_port_get_strings, 2126 .get_ethtool_stats = nfp_port_get_stats, 2127 .self_test = nfp_net_self_test, 2128 .get_sset_count = nfp_port_get_sset_count, 2129 .set_dump = nfp_app_set_dump, 2130 .get_dump_flag = nfp_app_get_dump_flag, 2131 .get_dump_data = nfp_app_get_dump_data, 2132 .get_eeprom_len = nfp_net_get_eeprom_len, 2133 .get_eeprom = nfp_net_get_eeprom, 2134 .set_eeprom = nfp_net_set_eeprom, 2135 .get_module_info = nfp_port_get_module_info, 2136 .get_module_eeprom = nfp_port_get_module_eeprom, 2137 .get_link_ksettings = nfp_net_get_link_ksettings, 2138 .set_link_ksettings = nfp_net_set_link_ksettings, 2139 .get_fecparam = nfp_port_get_fecparam, 2140 .set_fecparam = nfp_port_set_fecparam, 2141 .get_pauseparam = nfp_port_get_pauseparam, 2142 .set_phys_id = nfp_net_set_phys_id, 2143 }; 2144 2145 void nfp_net_set_ethtool_ops(struct net_device *netdev) 2146 { 2147 netdev->ethtool_ops = &nfp_net_ethtool_ops; 2148 } 2149