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 u16 nfp_eth_media_table[] = { 297 [NFP_MEDIA_1000BASE_CX] = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 298 [NFP_MEDIA_1000BASE_KX] = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 299 [NFP_MEDIA_10GBASE_KX4] = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 300 [NFP_MEDIA_10GBASE_KR] = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 301 [NFP_MEDIA_10GBASE_CX4] = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 302 [NFP_MEDIA_10GBASE_CR] = ETHTOOL_LINK_MODE_10000baseCR_Full_BIT, 303 [NFP_MEDIA_10GBASE_SR] = ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, 304 [NFP_MEDIA_10GBASE_ER] = ETHTOOL_LINK_MODE_10000baseER_Full_BIT, 305 [NFP_MEDIA_25GBASE_KR] = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 306 [NFP_MEDIA_25GBASE_KR_S] = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, 307 [NFP_MEDIA_25GBASE_CR] = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 308 [NFP_MEDIA_25GBASE_CR_S] = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, 309 [NFP_MEDIA_25GBASE_SR] = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, 310 [NFP_MEDIA_40GBASE_CR4] = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, 311 [NFP_MEDIA_40GBASE_KR4] = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 312 [NFP_MEDIA_40GBASE_SR4] = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, 313 [NFP_MEDIA_40GBASE_LR4] = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, 314 [NFP_MEDIA_50GBASE_KR] = ETHTOOL_LINK_MODE_50000baseKR_Full_BIT, 315 [NFP_MEDIA_50GBASE_SR] = ETHTOOL_LINK_MODE_50000baseSR_Full_BIT, 316 [NFP_MEDIA_50GBASE_CR] = ETHTOOL_LINK_MODE_50000baseCR_Full_BIT, 317 [NFP_MEDIA_50GBASE_LR] = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 318 [NFP_MEDIA_50GBASE_ER] = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 319 [NFP_MEDIA_50GBASE_FR] = ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT, 320 [NFP_MEDIA_100GBASE_KR4] = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, 321 [NFP_MEDIA_100GBASE_SR4] = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, 322 [NFP_MEDIA_100GBASE_CR4] = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 323 [NFP_MEDIA_100GBASE_KP4] = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, 324 [NFP_MEDIA_100GBASE_CR10] = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, 325 }; 326 327 static void nfp_add_media_link_mode(struct nfp_port *port, 328 struct nfp_eth_table_port *eth_port, 329 struct ethtool_link_ksettings *cmd) 330 { 331 u64 supported_modes[2], advertised_modes[2]; 332 struct nfp_eth_media_buf ethm = { 333 .eth_index = eth_port->eth_index, 334 }; 335 struct nfp_cpp *cpp = port->app->cpp; 336 337 if (nfp_eth_read_media(cpp, ðm)) 338 return; 339 340 for (u32 i = 0; i < 2; i++) { 341 supported_modes[i] = le64_to_cpu(ethm.supported_modes[i]); 342 advertised_modes[i] = le64_to_cpu(ethm.advertised_modes[i]); 343 } 344 345 for (u32 i = 0; i < NFP_MEDIA_LINK_MODES_NUMBER; i++) { 346 if (i < 64) { 347 if (supported_modes[0] & BIT_ULL(i)) 348 __set_bit(nfp_eth_media_table[i], 349 cmd->link_modes.supported); 350 351 if (advertised_modes[0] & BIT_ULL(i)) 352 __set_bit(nfp_eth_media_table[i], 353 cmd->link_modes.advertising); 354 } else { 355 if (supported_modes[1] & BIT_ULL(i - 64)) 356 __set_bit(nfp_eth_media_table[i], 357 cmd->link_modes.supported); 358 359 if (advertised_modes[1] & BIT_ULL(i - 64)) 360 __set_bit(nfp_eth_media_table[i], 361 cmd->link_modes.advertising); 362 } 363 } 364 } 365 366 /** 367 * nfp_net_get_link_ksettings - Get Link Speed settings 368 * @netdev: network interface device structure 369 * @cmd: ethtool command 370 * 371 * Reports speed settings based on info in the BAR provided by the fw. 372 */ 373 static int 374 nfp_net_get_link_ksettings(struct net_device *netdev, 375 struct ethtool_link_ksettings *cmd) 376 { 377 struct nfp_eth_table_port *eth_port; 378 struct nfp_port *port; 379 struct nfp_net *nn; 380 unsigned int speed; 381 u16 sts; 382 383 /* Init to unknowns */ 384 ethtool_link_ksettings_zero_link_mode(cmd, supported); 385 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 386 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 387 cmd->base.port = PORT_OTHER; 388 cmd->base.speed = SPEED_UNKNOWN; 389 cmd->base.duplex = DUPLEX_UNKNOWN; 390 391 port = nfp_port_from_netdev(netdev); 392 eth_port = nfp_port_get_eth_port(port); 393 if (eth_port) { 394 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 395 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 396 nfp_add_media_link_mode(port, eth_port, cmd); 397 if (eth_port->supp_aneg) { 398 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 399 if (eth_port->aneg == NFP_ANEG_AUTO) { 400 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 401 cmd->base.autoneg = AUTONEG_ENABLE; 402 } 403 } 404 nfp_net_set_fec_link_mode(eth_port, cmd); 405 } 406 407 if (!netif_carrier_ok(netdev)) 408 return 0; 409 410 /* Use link speed from ETH table if available, otherwise try the BAR */ 411 if (eth_port) { 412 cmd->base.port = eth_port->port_type; 413 cmd->base.speed = eth_port->speed; 414 cmd->base.duplex = DUPLEX_FULL; 415 return 0; 416 } 417 418 if (!nfp_netdev_is_nfp_net(netdev)) 419 return -EOPNOTSUPP; 420 nn = netdev_priv(netdev); 421 422 sts = nn_readw(nn, NFP_NET_CFG_STS); 423 speed = nfp_net_lr2speed(FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts)); 424 if (!speed) 425 return -EOPNOTSUPP; 426 427 if (speed != SPEED_UNKNOWN) { 428 cmd->base.speed = speed; 429 cmd->base.duplex = DUPLEX_FULL; 430 } 431 432 return 0; 433 } 434 435 static int 436 nfp_net_set_link_ksettings(struct net_device *netdev, 437 const struct ethtool_link_ksettings *cmd) 438 { 439 bool req_aneg = (cmd->base.autoneg == AUTONEG_ENABLE); 440 struct nfp_eth_table_port *eth_port; 441 struct nfp_port *port; 442 struct nfp_nsp *nsp; 443 int err; 444 445 port = nfp_port_from_netdev(netdev); 446 eth_port = __nfp_port_get_eth_port(port); 447 if (!eth_port) 448 return -EOPNOTSUPP; 449 450 if (netif_running(netdev)) { 451 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n"); 452 return -EBUSY; 453 } 454 455 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index); 456 if (IS_ERR(nsp)) 457 return PTR_ERR(nsp); 458 459 if (req_aneg && !eth_port->supp_aneg) { 460 netdev_warn(netdev, "Autoneg is not supported.\n"); 461 err = -EOPNOTSUPP; 462 goto err_bad_set; 463 } 464 465 err = __nfp_eth_set_aneg(nsp, req_aneg ? NFP_ANEG_AUTO : NFP_ANEG_DISABLED); 466 if (err) 467 goto err_bad_set; 468 469 if (cmd->base.speed != SPEED_UNKNOWN) { 470 u32 speed = cmd->base.speed / eth_port->lanes; 471 472 if (req_aneg) { 473 netdev_err(netdev, "Speed changing is not allowed when working on autoneg mode.\n"); 474 err = -EINVAL; 475 goto err_bad_set; 476 } 477 478 err = __nfp_eth_set_speed(nsp, speed); 479 if (err) 480 goto err_bad_set; 481 } 482 483 err = nfp_eth_config_commit_end(nsp); 484 if (err > 0) 485 return 0; /* no change */ 486 487 nfp_net_refresh_port_table(port); 488 489 return err; 490 491 err_bad_set: 492 nfp_eth_config_cleanup_end(nsp); 493 return err; 494 } 495 496 static void nfp_net_get_ringparam(struct net_device *netdev, 497 struct ethtool_ringparam *ring, 498 struct kernel_ethtool_ringparam *kernel_ring, 499 struct netlink_ext_ack *extack) 500 { 501 struct nfp_net *nn = netdev_priv(netdev); 502 u32 qc_max = nn->dev_info->max_qc_size; 503 504 ring->rx_max_pending = qc_max; 505 ring->tx_max_pending = qc_max / nn->dp.ops->tx_min_desc_per_pkt; 506 ring->rx_pending = nn->dp.rxd_cnt; 507 ring->tx_pending = nn->dp.txd_cnt; 508 } 509 510 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt) 511 { 512 struct nfp_net_dp *dp; 513 514 dp = nfp_net_clone_dp(nn); 515 if (!dp) 516 return -ENOMEM; 517 518 dp->rxd_cnt = rxd_cnt; 519 dp->txd_cnt = txd_cnt; 520 521 return nfp_net_ring_reconfig(nn, dp, NULL); 522 } 523 524 static int nfp_net_set_ringparam(struct net_device *netdev, 525 struct ethtool_ringparam *ring, 526 struct kernel_ethtool_ringparam *kernel_ring, 527 struct netlink_ext_ack *extack) 528 { 529 u32 tx_dpp, qc_min, qc_max, rxd_cnt, txd_cnt; 530 struct nfp_net *nn = netdev_priv(netdev); 531 532 /* We don't have separate queues/rings for small/large frames. */ 533 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 534 return -EINVAL; 535 536 qc_min = nn->dev_info->min_qc_size; 537 qc_max = nn->dev_info->max_qc_size; 538 tx_dpp = nn->dp.ops->tx_min_desc_per_pkt; 539 /* Round up to supported values */ 540 rxd_cnt = roundup_pow_of_two(ring->rx_pending); 541 txd_cnt = roundup_pow_of_two(ring->tx_pending); 542 543 if (rxd_cnt < qc_min || rxd_cnt > qc_max || 544 txd_cnt < qc_min / tx_dpp || txd_cnt > qc_max / tx_dpp) 545 return -EINVAL; 546 547 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt) 548 return 0; 549 550 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n", 551 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt); 552 553 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt); 554 } 555 556 static int nfp_test_link(struct net_device *netdev) 557 { 558 if (!netif_carrier_ok(netdev) || !(netdev->flags & IFF_UP)) 559 return 1; 560 561 return 0; 562 } 563 564 static int nfp_test_nsp(struct net_device *netdev) 565 { 566 struct nfp_app *app = nfp_app_from_netdev(netdev); 567 struct nfp_nsp_identify *nspi; 568 struct nfp_nsp *nsp; 569 int err; 570 571 nsp = nfp_nsp_open(app->cpp); 572 if (IS_ERR(nsp)) { 573 err = PTR_ERR(nsp); 574 netdev_info(netdev, "NSP Test: failed to access the NSP: %d\n", err); 575 goto exit; 576 } 577 578 if (nfp_nsp_get_abi_ver_minor(nsp) < 15) { 579 err = -EOPNOTSUPP; 580 goto exit_close_nsp; 581 } 582 583 nspi = kzalloc(sizeof(*nspi), GFP_KERNEL); 584 if (!nspi) { 585 err = -ENOMEM; 586 goto exit_close_nsp; 587 } 588 589 err = nfp_nsp_read_identify(nsp, nspi, sizeof(*nspi)); 590 if (err < 0) 591 netdev_info(netdev, "NSP Test: reading bsp version failed %d\n", err); 592 593 kfree(nspi); 594 exit_close_nsp: 595 nfp_nsp_close(nsp); 596 exit: 597 return err; 598 } 599 600 static int nfp_test_fw(struct net_device *netdev) 601 { 602 struct nfp_net *nn = netdev_priv(netdev); 603 int err; 604 605 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_GEN); 606 if (err) 607 netdev_info(netdev, "FW Test: update failed %d\n", err); 608 609 return err; 610 } 611 612 static int nfp_test_reg(struct net_device *netdev) 613 { 614 struct nfp_app *app = nfp_app_from_netdev(netdev); 615 struct nfp_cpp *cpp = app->cpp; 616 u32 model = nfp_cpp_model(cpp); 617 u32 value; 618 int err; 619 620 err = nfp_cpp_model_autodetect(cpp, &value); 621 if (err < 0) { 622 netdev_info(netdev, "REG Test: NFP model detection failed %d\n", err); 623 return err; 624 } 625 626 return (value == model) ? 0 : 1; 627 } 628 629 static bool link_test_supported(struct net_device *netdev) 630 { 631 return true; 632 } 633 634 static bool nsp_test_supported(struct net_device *netdev) 635 { 636 if (nfp_app_from_netdev(netdev)) 637 return true; 638 639 return false; 640 } 641 642 static bool fw_test_supported(struct net_device *netdev) 643 { 644 if (nfp_netdev_is_nfp_net(netdev)) 645 return true; 646 647 return false; 648 } 649 650 static bool reg_test_supported(struct net_device *netdev) 651 { 652 if (nfp_app_from_netdev(netdev)) 653 return true; 654 655 return false; 656 } 657 658 static struct nfp_self_test_item { 659 char name[ETH_GSTRING_LEN]; 660 bool (*is_supported)(struct net_device *dev); 661 int (*func)(struct net_device *dev); 662 } nfp_self_test[] = { 663 {"Link Test", link_test_supported, nfp_test_link}, 664 {"NSP Test", nsp_test_supported, nfp_test_nsp}, 665 {"Firmware Test", fw_test_supported, nfp_test_fw}, 666 {"Register Test", reg_test_supported, nfp_test_reg} 667 }; 668 669 #define NFP_TEST_TOTAL_NUM ARRAY_SIZE(nfp_self_test) 670 671 static void nfp_get_self_test_strings(struct net_device *netdev, u8 *data) 672 { 673 int i; 674 675 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 676 if (nfp_self_test[i].is_supported(netdev)) 677 ethtool_sprintf(&data, nfp_self_test[i].name); 678 } 679 680 static int nfp_get_self_test_count(struct net_device *netdev) 681 { 682 int i, count = 0; 683 684 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) 685 if (nfp_self_test[i].is_supported(netdev)) 686 count++; 687 688 return count; 689 } 690 691 static void nfp_net_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 692 u64 *data) 693 { 694 int i, ret, count = 0; 695 696 netdev_info(netdev, "Start self test\n"); 697 698 for (i = 0; i < NFP_TEST_TOTAL_NUM; i++) { 699 if (nfp_self_test[i].is_supported(netdev)) { 700 ret = nfp_self_test[i].func(netdev); 701 if (ret) 702 eth_test->flags |= ETH_TEST_FL_FAILED; 703 data[count++] = ret; 704 } 705 } 706 707 netdev_info(netdev, "Test end\n"); 708 } 709 710 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev) 711 { 712 struct nfp_net *nn = netdev_priv(netdev); 713 714 return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS + 715 NN_CTRL_PATH_STATS; 716 } 717 718 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data) 719 { 720 struct nfp_net *nn = netdev_priv(netdev); 721 int i; 722 723 for (i = 0; i < nn->max_r_vecs; i++) { 724 ethtool_sprintf(&data, "rvec_%u_rx_pkts", i); 725 ethtool_sprintf(&data, "rvec_%u_tx_pkts", i); 726 ethtool_sprintf(&data, "rvec_%u_tx_busy", i); 727 } 728 729 ethtool_sprintf(&data, "hw_rx_csum_ok"); 730 ethtool_sprintf(&data, "hw_rx_csum_inner_ok"); 731 ethtool_sprintf(&data, "hw_rx_csum_complete"); 732 ethtool_sprintf(&data, "hw_rx_csum_err"); 733 ethtool_sprintf(&data, "rx_replace_buf_alloc_fail"); 734 ethtool_sprintf(&data, "rx_tls_decrypted_packets"); 735 ethtool_sprintf(&data, "hw_tx_csum"); 736 ethtool_sprintf(&data, "hw_tx_inner_csum"); 737 ethtool_sprintf(&data, "tx_gather"); 738 ethtool_sprintf(&data, "tx_lso"); 739 ethtool_sprintf(&data, "tx_tls_encrypted_packets"); 740 ethtool_sprintf(&data, "tx_tls_ooo"); 741 ethtool_sprintf(&data, "tx_tls_drop_no_sync_data"); 742 743 ethtool_sprintf(&data, "hw_tls_no_space"); 744 ethtool_sprintf(&data, "rx_tls_resync_req_ok"); 745 ethtool_sprintf(&data, "rx_tls_resync_req_ign"); 746 ethtool_sprintf(&data, "rx_tls_resync_sent"); 747 748 return data; 749 } 750 751 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data) 752 { 753 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {}; 754 struct nfp_net *nn = netdev_priv(netdev); 755 u64 tmp[NN_RVEC_GATHER_STATS]; 756 unsigned int i, j; 757 758 for (i = 0; i < nn->max_r_vecs; i++) { 759 unsigned int start; 760 761 do { 762 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync); 763 data[0] = nn->r_vecs[i].rx_pkts; 764 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok; 765 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok; 766 tmp[2] = nn->r_vecs[i].hw_csum_rx_complete; 767 tmp[3] = nn->r_vecs[i].hw_csum_rx_error; 768 tmp[4] = nn->r_vecs[i].rx_replace_buf_alloc_fail; 769 tmp[5] = nn->r_vecs[i].hw_tls_rx; 770 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start)); 771 772 do { 773 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync); 774 data[1] = nn->r_vecs[i].tx_pkts; 775 data[2] = nn->r_vecs[i].tx_busy; 776 tmp[6] = nn->r_vecs[i].hw_csum_tx; 777 tmp[7] = nn->r_vecs[i].hw_csum_tx_inner; 778 tmp[8] = nn->r_vecs[i].tx_gather; 779 tmp[9] = nn->r_vecs[i].tx_lso; 780 tmp[10] = nn->r_vecs[i].hw_tls_tx; 781 tmp[11] = nn->r_vecs[i].tls_tx_fallback; 782 tmp[12] = nn->r_vecs[i].tls_tx_no_fallback; 783 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start)); 784 785 data += NN_RVEC_PER_Q_STATS; 786 787 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 788 gathered_stats[j] += tmp[j]; 789 } 790 791 for (j = 0; j < NN_RVEC_GATHER_STATS; j++) 792 *data++ = gathered_stats[j]; 793 794 *data++ = atomic_read(&nn->ktls_no_space); 795 *data++ = atomic_read(&nn->ktls_rx_resync_req); 796 *data++ = atomic_read(&nn->ktls_rx_resync_ign); 797 *data++ = atomic_read(&nn->ktls_rx_resync_sent); 798 799 return data; 800 } 801 802 static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs) 803 { 804 return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4; 805 } 806 807 static u8 * 808 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr) 809 { 810 int swap_off, i; 811 812 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2); 813 /* If repr is true first add SWITCH_STATS_LEN and then subtract it 814 * effectively swapping the RX and TX statistics (giving us the RX 815 * and TX from perspective of the switch). 816 */ 817 swap_off = repr * NN_ET_SWITCH_STATS_LEN; 818 819 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++) 820 ethtool_sprintf(&data, nfp_net_et_stats[i + swap_off].name); 821 822 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++) 823 ethtool_sprintf(&data, nfp_net_et_stats[i - swap_off].name); 824 825 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++) 826 ethtool_sprintf(&data, nfp_net_et_stats[i].name); 827 828 for (i = 0; i < num_vecs; i++) { 829 ethtool_sprintf(&data, "rxq_%u_pkts", i); 830 ethtool_sprintf(&data, "rxq_%u_bytes", i); 831 ethtool_sprintf(&data, "txq_%u_pkts", i); 832 ethtool_sprintf(&data, "txq_%u_bytes", i); 833 } 834 835 return data; 836 } 837 838 static u64 * 839 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs) 840 { 841 unsigned int i; 842 843 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++) 844 *data++ = readq(mem + nfp_net_et_stats[i].off); 845 846 for (i = 0; i < num_vecs; i++) { 847 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 848 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 849 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 850 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 851 } 852 853 return data; 854 } 855 856 static unsigned int nfp_vnic_get_tlv_stats_count(struct nfp_net *nn) 857 { 858 return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4; 859 } 860 861 static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data) 862 { 863 unsigned int i, id; 864 u8 __iomem *mem; 865 u64 id_word = 0; 866 867 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 868 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) { 869 if (!(i % 4)) 870 id_word = readq(mem + i * 2); 871 872 id = (u16)id_word; 873 id_word >>= 16; 874 875 if (id < ARRAY_SIZE(nfp_tlv_stat_names) && 876 nfp_tlv_stat_names[id][0]) { 877 memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN); 878 data += ETH_GSTRING_LEN; 879 } else { 880 ethtool_sprintf(&data, "dev_unknown_stat%u", id); 881 } 882 } 883 884 for (i = 0; i < nn->max_r_vecs; i++) { 885 ethtool_sprintf(&data, "rxq_%u_pkts", i); 886 ethtool_sprintf(&data, "rxq_%u_bytes", i); 887 ethtool_sprintf(&data, "txq_%u_pkts", i); 888 ethtool_sprintf(&data, "txq_%u_bytes", i); 889 } 890 891 return data; 892 } 893 894 static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data) 895 { 896 u8 __iomem *mem; 897 unsigned int i; 898 899 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off; 900 mem += roundup(2 * nn->tlv_caps.vnic_stats_cnt, 8); 901 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) 902 *data++ = readq(mem + i * 8); 903 904 mem = nn->dp.ctrl_bar; 905 for (i = 0; i < nn->max_r_vecs; i++) { 906 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i)); 907 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8); 908 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i)); 909 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8); 910 } 911 912 return data; 913 } 914 915 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev) 916 { 917 struct nfp_port *port; 918 919 port = nfp_port_from_netdev(netdev); 920 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 921 return 0; 922 923 return ARRAY_SIZE(nfp_mac_et_stats); 924 } 925 926 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data) 927 { 928 struct nfp_port *port; 929 unsigned int i; 930 931 port = nfp_port_from_netdev(netdev); 932 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 933 return data; 934 935 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 936 ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name); 937 938 return data; 939 } 940 941 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data) 942 { 943 struct nfp_port *port; 944 unsigned int i; 945 946 port = nfp_port_from_netdev(netdev); 947 if (!__nfp_port_get_eth_port(port) || !port->eth_stats) 948 return data; 949 950 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++) 951 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off); 952 953 return data; 954 } 955 956 static void nfp_net_get_strings(struct net_device *netdev, 957 u32 stringset, u8 *data) 958 { 959 struct nfp_net *nn = netdev_priv(netdev); 960 961 switch (stringset) { 962 case ETH_SS_STATS: 963 data = nfp_vnic_get_sw_stats_strings(netdev, data); 964 if (!nn->tlv_caps.vnic_stats_off) 965 data = nfp_vnic_get_hw_stats_strings(data, 966 nn->max_r_vecs, 967 false); 968 else 969 data = nfp_vnic_get_tlv_stats_strings(nn, data); 970 data = nfp_mac_get_stats_strings(netdev, data); 971 data = nfp_app_port_get_stats_strings(nn->port, data); 972 break; 973 case ETH_SS_TEST: 974 nfp_get_self_test_strings(netdev, data); 975 break; 976 } 977 } 978 979 static void 980 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 981 u64 *data) 982 { 983 struct nfp_net *nn = netdev_priv(netdev); 984 985 data = nfp_vnic_get_sw_stats(netdev, data); 986 if (!nn->tlv_caps.vnic_stats_off) 987 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar, 988 nn->max_r_vecs); 989 else 990 data = nfp_vnic_get_tlv_stats(nn, data); 991 data = nfp_mac_get_stats(netdev, data); 992 data = nfp_app_port_get_stats(nn->port, data); 993 } 994 995 static int nfp_net_get_sset_count(struct net_device *netdev, int sset) 996 { 997 struct nfp_net *nn = netdev_priv(netdev); 998 unsigned int cnt; 999 1000 switch (sset) { 1001 case ETH_SS_STATS: 1002 cnt = nfp_vnic_get_sw_stats_count(netdev); 1003 if (!nn->tlv_caps.vnic_stats_off) 1004 cnt += nfp_vnic_get_hw_stats_count(nn->max_r_vecs); 1005 else 1006 cnt += nfp_vnic_get_tlv_stats_count(nn); 1007 cnt += nfp_mac_get_stats_count(netdev); 1008 cnt += nfp_app_port_get_stats_count(nn->port); 1009 return cnt; 1010 case ETH_SS_TEST: 1011 return nfp_get_self_test_count(netdev); 1012 default: 1013 return -EOPNOTSUPP; 1014 } 1015 } 1016 1017 static void nfp_port_get_strings(struct net_device *netdev, 1018 u32 stringset, u8 *data) 1019 { 1020 struct nfp_port *port = nfp_port_from_netdev(netdev); 1021 1022 switch (stringset) { 1023 case ETH_SS_STATS: 1024 if (nfp_port_is_vnic(port)) 1025 data = nfp_vnic_get_hw_stats_strings(data, 0, true); 1026 else 1027 data = nfp_mac_get_stats_strings(netdev, data); 1028 data = nfp_app_port_get_stats_strings(port, data); 1029 break; 1030 case ETH_SS_TEST: 1031 nfp_get_self_test_strings(netdev, data); 1032 break; 1033 } 1034 } 1035 1036 static void 1037 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats, 1038 u64 *data) 1039 { 1040 struct nfp_port *port = nfp_port_from_netdev(netdev); 1041 1042 if (nfp_port_is_vnic(port)) 1043 data = nfp_vnic_get_hw_stats(data, port->vnic, 0); 1044 else 1045 data = nfp_mac_get_stats(netdev, data); 1046 data = nfp_app_port_get_stats(port, data); 1047 } 1048 1049 static int nfp_port_get_sset_count(struct net_device *netdev, int sset) 1050 { 1051 struct nfp_port *port = nfp_port_from_netdev(netdev); 1052 unsigned int count; 1053 1054 switch (sset) { 1055 case ETH_SS_STATS: 1056 if (nfp_port_is_vnic(port)) 1057 count = nfp_vnic_get_hw_stats_count(0); 1058 else 1059 count = nfp_mac_get_stats_count(netdev); 1060 count += nfp_app_port_get_stats_count(port); 1061 return count; 1062 case ETH_SS_TEST: 1063 return nfp_get_self_test_count(netdev); 1064 default: 1065 return -EOPNOTSUPP; 1066 } 1067 } 1068 1069 static int nfp_port_fec_ethtool_to_nsp(u32 fec) 1070 { 1071 switch (fec) { 1072 case ETHTOOL_FEC_AUTO: 1073 return NFP_FEC_AUTO_BIT; 1074 case ETHTOOL_FEC_OFF: 1075 return NFP_FEC_DISABLED_BIT; 1076 case ETHTOOL_FEC_RS: 1077 return NFP_FEC_REED_SOLOMON_BIT; 1078 case ETHTOOL_FEC_BASER: 1079 return NFP_FEC_BASER_BIT; 1080 default: 1081 /* NSP only supports a single mode at a time */ 1082 return -EOPNOTSUPP; 1083 } 1084 } 1085 1086 static u32 nfp_port_fec_nsp_to_ethtool(u32 fec) 1087 { 1088 u32 result = 0; 1089 1090 if (fec & NFP_FEC_AUTO) 1091 result |= ETHTOOL_FEC_AUTO; 1092 if (fec & NFP_FEC_BASER) 1093 result |= ETHTOOL_FEC_BASER; 1094 if (fec & NFP_FEC_REED_SOLOMON) 1095 result |= ETHTOOL_FEC_RS; 1096 if (fec & NFP_FEC_DISABLED) 1097 result |= ETHTOOL_FEC_OFF; 1098 1099 return result ?: ETHTOOL_FEC_NONE; 1100 } 1101 1102 static int 1103 nfp_port_get_fecparam(struct net_device *netdev, 1104 struct ethtool_fecparam *param) 1105 { 1106 struct nfp_eth_table_port *eth_port; 1107 struct nfp_port *port; 1108 1109 param->active_fec = ETHTOOL_FEC_NONE; 1110 param->fec = ETHTOOL_FEC_NONE; 1111 1112 port = nfp_port_from_netdev(netdev); 1113 eth_port = nfp_port_get_eth_port(port); 1114 if (!eth_port) 1115 return -EOPNOTSUPP; 1116 1117 if (!nfp_eth_can_support_fec(eth_port)) 1118 return 0; 1119 1120 param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported); 1121 param->active_fec = nfp_port_fec_nsp_to_ethtool(BIT(eth_port->act_fec)); 1122 1123 return 0; 1124 } 1125 1126 static int 1127 nfp_port_set_fecparam(struct net_device *netdev, 1128 struct ethtool_fecparam *param) 1129 { 1130 struct nfp_eth_table_port *eth_port; 1131 struct nfp_port *port; 1132 int err, fec; 1133 1134 port = nfp_port_from_netdev(netdev); 1135 eth_port = nfp_port_get_eth_port(port); 1136 if (!eth_port) 1137 return -EOPNOTSUPP; 1138 1139 if (!nfp_eth_can_support_fec(eth_port)) 1140 return -EOPNOTSUPP; 1141 1142 fec = nfp_port_fec_ethtool_to_nsp(param->fec); 1143 if (fec < 0) 1144 return fec; 1145 1146 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec); 1147 if (!err) 1148 /* Only refresh if we did something */ 1149 nfp_net_refresh_port_table(port); 1150 1151 return err < 0 ? err : 0; 1152 } 1153 1154 /* RX network flow classification (RSS, filters, etc) 1155 */ 1156 static u32 ethtool_flow_to_nfp_flag(u32 flow_type) 1157 { 1158 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = { 1159 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP, 1160 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP, 1161 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP, 1162 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP, 1163 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4, 1164 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6, 1165 }; 1166 1167 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp)) 1168 return 0; 1169 1170 return xlate_ethtool_to_nfp[flow_type]; 1171 } 1172 1173 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn, 1174 struct ethtool_rxnfc *cmd) 1175 { 1176 u32 nfp_rss_flag; 1177 1178 cmd->data = 0; 1179 1180 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1181 return -EOPNOTSUPP; 1182 1183 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type); 1184 if (!nfp_rss_flag) 1185 return -EINVAL; 1186 1187 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1188 if (nn->rss_cfg & nfp_rss_flag) 1189 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1190 1191 return 0; 1192 } 1193 1194 static int nfp_net_get_rxnfc(struct net_device *netdev, 1195 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1196 { 1197 struct nfp_net *nn = netdev_priv(netdev); 1198 1199 switch (cmd->cmd) { 1200 case ETHTOOL_GRXRINGS: 1201 cmd->data = nn->dp.num_rx_rings; 1202 return 0; 1203 case ETHTOOL_GRXFH: 1204 return nfp_net_get_rss_hash_opts(nn, cmd); 1205 default: 1206 return -EOPNOTSUPP; 1207 } 1208 } 1209 1210 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn, 1211 struct ethtool_rxnfc *nfc) 1212 { 1213 u32 new_rss_cfg = nn->rss_cfg; 1214 u32 nfp_rss_flag; 1215 int err; 1216 1217 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1218 return -EOPNOTSUPP; 1219 1220 /* RSS only supports IP SA/DA and L4 src/dst ports */ 1221 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1222 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1223 return -EINVAL; 1224 1225 /* We need at least the IP SA/DA fields for hashing */ 1226 if (!(nfc->data & RXH_IP_SRC) || 1227 !(nfc->data & RXH_IP_DST)) 1228 return -EINVAL; 1229 1230 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type); 1231 if (!nfp_rss_flag) 1232 return -EINVAL; 1233 1234 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1235 case 0: 1236 new_rss_cfg &= ~nfp_rss_flag; 1237 break; 1238 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1239 new_rss_cfg |= nfp_rss_flag; 1240 break; 1241 default: 1242 return -EINVAL; 1243 } 1244 1245 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc); 1246 new_rss_cfg |= NFP_NET_CFG_RSS_MASK; 1247 1248 if (new_rss_cfg == nn->rss_cfg) 1249 return 0; 1250 1251 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL); 1252 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1253 if (err) 1254 return err; 1255 1256 nn->rss_cfg = new_rss_cfg; 1257 1258 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg); 1259 return 0; 1260 } 1261 1262 static int nfp_net_set_rxnfc(struct net_device *netdev, 1263 struct ethtool_rxnfc *cmd) 1264 { 1265 struct nfp_net *nn = netdev_priv(netdev); 1266 1267 switch (cmd->cmd) { 1268 case ETHTOOL_SRXFH: 1269 return nfp_net_set_rss_hash_opt(nn, cmd); 1270 default: 1271 return -EOPNOTSUPP; 1272 } 1273 } 1274 1275 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev) 1276 { 1277 struct nfp_net *nn = netdev_priv(netdev); 1278 1279 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1280 return 0; 1281 1282 return ARRAY_SIZE(nn->rss_itbl); 1283 } 1284 1285 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev) 1286 { 1287 struct nfp_net *nn = netdev_priv(netdev); 1288 1289 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1290 return -EOPNOTSUPP; 1291 1292 return nfp_net_rss_key_sz(nn); 1293 } 1294 1295 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1296 u8 *hfunc) 1297 { 1298 struct nfp_net *nn = netdev_priv(netdev); 1299 int i; 1300 1301 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY)) 1302 return -EOPNOTSUPP; 1303 1304 if (indir) 1305 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1306 indir[i] = nn->rss_itbl[i]; 1307 if (key) 1308 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn)); 1309 if (hfunc) { 1310 *hfunc = nn->rss_hfunc; 1311 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT) 1312 *hfunc = ETH_RSS_HASH_UNKNOWN; 1313 } 1314 1315 return 0; 1316 } 1317 1318 static int nfp_net_set_rxfh(struct net_device *netdev, 1319 const u32 *indir, const u8 *key, 1320 const u8 hfunc) 1321 { 1322 struct nfp_net *nn = netdev_priv(netdev); 1323 int i; 1324 1325 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) || 1326 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc)) 1327 return -EOPNOTSUPP; 1328 1329 if (!key && !indir) 1330 return 0; 1331 1332 if (key) { 1333 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn)); 1334 nfp_net_rss_write_key(nn); 1335 } 1336 if (indir) { 1337 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++) 1338 nn->rss_itbl[i] = indir[i]; 1339 1340 nfp_net_rss_write_itbl(nn); 1341 } 1342 1343 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS); 1344 } 1345 1346 /* Dump BAR registers 1347 */ 1348 static int nfp_net_get_regs_len(struct net_device *netdev) 1349 { 1350 return NFP_NET_CFG_BAR_SZ; 1351 } 1352 1353 static void nfp_net_get_regs(struct net_device *netdev, 1354 struct ethtool_regs *regs, void *p) 1355 { 1356 struct nfp_net *nn = netdev_priv(netdev); 1357 u32 *regs_buf = p; 1358 int i; 1359 1360 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION); 1361 1362 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++) 1363 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32))); 1364 } 1365 1366 static int nfp_net_get_coalesce(struct net_device *netdev, 1367 struct ethtool_coalesce *ec, 1368 struct kernel_ethtool_coalesce *kernel_coal, 1369 struct netlink_ext_ack *extack) 1370 { 1371 struct nfp_net *nn = netdev_priv(netdev); 1372 1373 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1374 return -EINVAL; 1375 1376 ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on; 1377 ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on; 1378 1379 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs; 1380 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames; 1381 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs; 1382 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames; 1383 1384 return 0; 1385 } 1386 1387 /* Other debug dumps 1388 */ 1389 static int 1390 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer) 1391 { 1392 struct nfp_resource *res; 1393 int ret; 1394 1395 if (!app) 1396 return -EOPNOTSUPP; 1397 1398 dump->version = 1; 1399 dump->flag = NFP_DUMP_NSP_DIAG; 1400 1401 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG); 1402 if (IS_ERR(res)) 1403 return PTR_ERR(res); 1404 1405 if (buffer) { 1406 if (dump->len != nfp_resource_size(res)) { 1407 ret = -EINVAL; 1408 goto exit_release; 1409 } 1410 1411 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res), 1412 nfp_resource_address(res), 1413 buffer, dump->len); 1414 if (ret != dump->len) 1415 ret = ret < 0 ? ret : -EIO; 1416 else 1417 ret = 0; 1418 } else { 1419 dump->len = nfp_resource_size(res); 1420 ret = 0; 1421 } 1422 exit_release: 1423 nfp_resource_release(res); 1424 1425 return ret; 1426 } 1427 1428 /* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV 1429 * based dumps), since flag 0 (default) calculates the length in 1430 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump 1431 * without setting the flag first, for backward compatibility. 1432 */ 1433 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val) 1434 { 1435 struct nfp_app *app = nfp_app_from_netdev(netdev); 1436 s64 len; 1437 1438 if (!app) 1439 return -EOPNOTSUPP; 1440 1441 if (val->flag == NFP_DUMP_NSP_DIAG) { 1442 app->pf->dump_flag = val->flag; 1443 return 0; 1444 } 1445 1446 if (!app->pf->dumpspec) 1447 return -EOPNOTSUPP; 1448 1449 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec, 1450 val->flag); 1451 if (len < 0) 1452 return len; 1453 1454 app->pf->dump_flag = val->flag; 1455 app->pf->dump_len = len; 1456 1457 return 0; 1458 } 1459 1460 static int 1461 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump) 1462 { 1463 struct nfp_app *app = nfp_app_from_netdev(netdev); 1464 1465 if (!app) 1466 return -EOPNOTSUPP; 1467 1468 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1469 return nfp_dump_nsp_diag(app, dump, NULL); 1470 1471 dump->flag = app->pf->dump_flag; 1472 dump->len = app->pf->dump_len; 1473 1474 return 0; 1475 } 1476 1477 static int 1478 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump, 1479 void *buffer) 1480 { 1481 struct nfp_app *app = nfp_app_from_netdev(netdev); 1482 1483 if (!app) 1484 return -EOPNOTSUPP; 1485 1486 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG) 1487 return nfp_dump_nsp_diag(app, dump, buffer); 1488 1489 dump->flag = app->pf->dump_flag; 1490 dump->len = app->pf->dump_len; 1491 1492 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump, 1493 buffer); 1494 } 1495 1496 static int 1497 nfp_port_get_module_info(struct net_device *netdev, 1498 struct ethtool_modinfo *modinfo) 1499 { 1500 struct nfp_eth_table_port *eth_port; 1501 struct nfp_port *port; 1502 unsigned int read_len; 1503 struct nfp_nsp *nsp; 1504 int err = 0; 1505 u8 data; 1506 1507 port = nfp_port_from_netdev(netdev); 1508 if (!port) 1509 return -EOPNOTSUPP; 1510 1511 /* update port state to get latest interface */ 1512 set_bit(NFP_PORT_CHANGED, &port->flags); 1513 eth_port = nfp_port_get_eth_port(port); 1514 if (!eth_port) 1515 return -EOPNOTSUPP; 1516 1517 nsp = nfp_nsp_open(port->app->cpp); 1518 if (IS_ERR(nsp)) { 1519 err = PTR_ERR(nsp); 1520 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1521 return err; 1522 } 1523 1524 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1525 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1526 err = -EOPNOTSUPP; 1527 goto exit_close_nsp; 1528 } 1529 1530 switch (eth_port->interface) { 1531 case NFP_INTERFACE_SFP: 1532 case NFP_INTERFACE_SFP28: 1533 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1534 SFP_SFF8472_COMPLIANCE, &data, 1535 1, &read_len); 1536 if (err < 0) 1537 goto exit_close_nsp; 1538 1539 if (!data) { 1540 modinfo->type = ETH_MODULE_SFF_8079; 1541 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 1542 } else { 1543 modinfo->type = ETH_MODULE_SFF_8472; 1544 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 1545 } 1546 break; 1547 case NFP_INTERFACE_QSFP: 1548 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1549 SFP_SFF_REV_COMPLIANCE, &data, 1550 1, &read_len); 1551 if (err < 0) 1552 goto exit_close_nsp; 1553 1554 if (data < 0x3) { 1555 modinfo->type = ETH_MODULE_SFF_8436; 1556 modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN; 1557 } else { 1558 modinfo->type = ETH_MODULE_SFF_8636; 1559 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1560 } 1561 break; 1562 case NFP_INTERFACE_QSFP28: 1563 modinfo->type = ETH_MODULE_SFF_8636; 1564 modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN; 1565 break; 1566 default: 1567 netdev_err(netdev, "Unsupported module 0x%x detected\n", 1568 eth_port->interface); 1569 err = -EINVAL; 1570 } 1571 1572 exit_close_nsp: 1573 nfp_nsp_close(nsp); 1574 return err; 1575 } 1576 1577 static int 1578 nfp_port_get_module_eeprom(struct net_device *netdev, 1579 struct ethtool_eeprom *eeprom, u8 *data) 1580 { 1581 struct nfp_eth_table_port *eth_port; 1582 struct nfp_port *port; 1583 struct nfp_nsp *nsp; 1584 int err; 1585 1586 port = nfp_port_from_netdev(netdev); 1587 eth_port = __nfp_port_get_eth_port(port); 1588 if (!eth_port) 1589 return -EOPNOTSUPP; 1590 1591 nsp = nfp_nsp_open(port->app->cpp); 1592 if (IS_ERR(nsp)) { 1593 err = PTR_ERR(nsp); 1594 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1595 return err; 1596 } 1597 1598 if (!nfp_nsp_has_read_module_eeprom(nsp)) { 1599 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n"); 1600 err = -EOPNOTSUPP; 1601 goto exit_close_nsp; 1602 } 1603 1604 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index, 1605 eeprom->offset, data, eeprom->len, 1606 &eeprom->len); 1607 if (err < 0) { 1608 if (eeprom->len) { 1609 netdev_warn(netdev, 1610 "Incomplete read from module EEPROM: %d\n", 1611 err); 1612 err = 0; 1613 } else { 1614 netdev_err(netdev, 1615 "Reading from module EEPROM failed: %d\n", 1616 err); 1617 } 1618 } 1619 1620 exit_close_nsp: 1621 nfp_nsp_close(nsp); 1622 return err; 1623 } 1624 1625 static int nfp_net_set_coalesce(struct net_device *netdev, 1626 struct ethtool_coalesce *ec, 1627 struct kernel_ethtool_coalesce *kernel_coal, 1628 struct netlink_ext_ack *extack) 1629 { 1630 struct nfp_net *nn = netdev_priv(netdev); 1631 unsigned int factor; 1632 1633 /* Compute factor used to convert coalesce '_usecs' parameters to 1634 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp 1635 * count. 1636 */ 1637 factor = nn->tlv_caps.me_freq_mhz / 16; 1638 1639 /* Each pair of (usecs, max_frames) fields specifies that interrupts 1640 * should be coalesced until 1641 * (usecs > 0 && time_since_first_completion >= usecs) || 1642 * (max_frames > 0 && completed_frames >= max_frames) 1643 * 1644 * It is illegal to set both usecs and max_frames to zero as this would 1645 * cause interrupts to never be generated. To disable coalescing, set 1646 * usecs = 0 and max_frames = 1. 1647 * 1648 * Some implementations ignore the value of max_frames and use the 1649 * condition time_since_first_completion >= usecs 1650 */ 1651 1652 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD)) 1653 return -EINVAL; 1654 1655 /* ensure valid configuration */ 1656 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames) 1657 return -EINVAL; 1658 1659 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames) 1660 return -EINVAL; 1661 1662 if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor, 1663 ec->rx_max_coalesced_frames)) 1664 return -EINVAL; 1665 1666 if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor, 1667 ec->tx_max_coalesced_frames)) 1668 return -EINVAL; 1669 1670 /* configuration is valid */ 1671 nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce; 1672 nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce; 1673 1674 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs; 1675 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames; 1676 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs; 1677 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames; 1678 1679 /* write configuration to device */ 1680 nfp_net_coalesce_write_cfg(nn); 1681 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD); 1682 } 1683 1684 static void nfp_net_get_channels(struct net_device *netdev, 1685 struct ethtool_channels *channel) 1686 { 1687 struct nfp_net *nn = netdev_priv(netdev); 1688 unsigned int num_tx_rings; 1689 1690 num_tx_rings = nn->dp.num_tx_rings; 1691 if (nn->dp.xdp_prog) 1692 num_tx_rings -= nn->dp.num_rx_rings; 1693 1694 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs); 1695 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs); 1696 channel->max_combined = min(channel->max_rx, channel->max_tx); 1697 channel->max_other = NFP_NET_NON_Q_VECTORS; 1698 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings); 1699 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count; 1700 channel->tx_count = num_tx_rings - channel->combined_count; 1701 channel->other_count = NFP_NET_NON_Q_VECTORS; 1702 } 1703 1704 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx, 1705 unsigned int total_tx) 1706 { 1707 struct nfp_net_dp *dp; 1708 1709 dp = nfp_net_clone_dp(nn); 1710 if (!dp) 1711 return -ENOMEM; 1712 1713 dp->num_rx_rings = total_rx; 1714 dp->num_tx_rings = total_tx; 1715 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */ 1716 if (dp->xdp_prog) 1717 dp->num_tx_rings += total_rx; 1718 1719 return nfp_net_ring_reconfig(nn, dp, NULL); 1720 } 1721 1722 static int nfp_net_set_channels(struct net_device *netdev, 1723 struct ethtool_channels *channel) 1724 { 1725 struct nfp_net *nn = netdev_priv(netdev); 1726 unsigned int total_rx, total_tx; 1727 1728 /* Reject unsupported */ 1729 if (channel->other_count != NFP_NET_NON_Q_VECTORS || 1730 (channel->rx_count && channel->tx_count)) 1731 return -EINVAL; 1732 1733 total_rx = channel->combined_count + channel->rx_count; 1734 total_tx = channel->combined_count + channel->tx_count; 1735 1736 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) || 1737 total_tx > min(nn->max_tx_rings, nn->max_r_vecs)) 1738 return -EINVAL; 1739 1740 return nfp_net_set_num_rings(nn, total_rx, total_tx); 1741 } 1742 1743 static void nfp_port_get_pauseparam(struct net_device *netdev, 1744 struct ethtool_pauseparam *pause) 1745 { 1746 struct nfp_eth_table_port *eth_port; 1747 struct nfp_port *port; 1748 1749 port = nfp_port_from_netdev(netdev); 1750 eth_port = nfp_port_get_eth_port(port); 1751 if (!eth_port) 1752 return; 1753 1754 /* Currently pause frame support is fixed */ 1755 pause->autoneg = AUTONEG_DISABLE; 1756 pause->rx_pause = 1; 1757 pause->tx_pause = 1; 1758 } 1759 1760 static int nfp_net_set_phys_id(struct net_device *netdev, 1761 enum ethtool_phys_id_state state) 1762 { 1763 struct nfp_eth_table_port *eth_port; 1764 struct nfp_port *port; 1765 int err; 1766 1767 port = nfp_port_from_netdev(netdev); 1768 eth_port = __nfp_port_get_eth_port(port); 1769 if (!eth_port) 1770 return -EOPNOTSUPP; 1771 1772 switch (state) { 1773 case ETHTOOL_ID_ACTIVE: 1774 /* Control LED to blink */ 1775 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 1); 1776 break; 1777 1778 case ETHTOOL_ID_INACTIVE: 1779 /* Control LED to normal mode */ 1780 err = nfp_eth_set_idmode(port->app->cpp, eth_port->index, 0); 1781 break; 1782 1783 case ETHTOOL_ID_ON: 1784 case ETHTOOL_ID_OFF: 1785 default: 1786 return -EOPNOTSUPP; 1787 } 1788 1789 return err; 1790 } 1791 1792 #define NFP_EEPROM_LEN ETH_ALEN 1793 1794 static int 1795 nfp_net_get_eeprom_len(struct net_device *netdev) 1796 { 1797 struct nfp_eth_table_port *eth_port; 1798 struct nfp_port *port; 1799 1800 port = nfp_port_from_netdev(netdev); 1801 eth_port = __nfp_port_get_eth_port(port); 1802 if (!eth_port) 1803 return 0; 1804 1805 return NFP_EEPROM_LEN; 1806 } 1807 1808 static int 1809 nfp_net_get_nsp_hwindex(struct net_device *netdev, 1810 struct nfp_nsp **nspptr, 1811 u32 *index) 1812 { 1813 struct nfp_eth_table_port *eth_port; 1814 struct nfp_port *port; 1815 struct nfp_nsp *nsp; 1816 int err; 1817 1818 port = nfp_port_from_netdev(netdev); 1819 eth_port = __nfp_port_get_eth_port(port); 1820 if (!eth_port) 1821 return -EOPNOTSUPP; 1822 1823 nsp = nfp_nsp_open(port->app->cpp); 1824 if (IS_ERR(nsp)) { 1825 err = PTR_ERR(nsp); 1826 netdev_err(netdev, "Failed to access the NSP: %d\n", err); 1827 return err; 1828 } 1829 1830 if (!nfp_nsp_has_hwinfo_lookup(nsp)) { 1831 netdev_err(netdev, "NSP doesn't support PF MAC generation\n"); 1832 nfp_nsp_close(nsp); 1833 return -EOPNOTSUPP; 1834 } 1835 1836 *nspptr = nsp; 1837 *index = eth_port->eth_index; 1838 1839 return 0; 1840 } 1841 1842 static int 1843 nfp_net_get_port_mac_by_hwinfo(struct net_device *netdev, 1844 u8 *mac_addr) 1845 { 1846 char hwinfo[32] = {}; 1847 struct nfp_nsp *nsp; 1848 u32 index; 1849 int err; 1850 1851 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 1852 if (err) 1853 return err; 1854 1855 snprintf(hwinfo, sizeof(hwinfo), "eth%u.mac", index); 1856 err = nfp_nsp_hwinfo_lookup(nsp, hwinfo, sizeof(hwinfo)); 1857 nfp_nsp_close(nsp); 1858 if (err) { 1859 netdev_err(netdev, "Reading persistent MAC address failed: %d\n", 1860 err); 1861 return -EOPNOTSUPP; 1862 } 1863 1864 if (sscanf(hwinfo, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 1865 &mac_addr[0], &mac_addr[1], &mac_addr[2], 1866 &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6) { 1867 netdev_err(netdev, "Can't parse persistent MAC address (%s)\n", 1868 hwinfo); 1869 return -EOPNOTSUPP; 1870 } 1871 1872 return 0; 1873 } 1874 1875 static int 1876 nfp_net_set_port_mac_by_hwinfo(struct net_device *netdev, 1877 u8 *mac_addr) 1878 { 1879 char hwinfo[32] = {}; 1880 struct nfp_nsp *nsp; 1881 u32 index; 1882 int err; 1883 1884 err = nfp_net_get_nsp_hwindex(netdev, &nsp, &index); 1885 if (err) 1886 return err; 1887 1888 snprintf(hwinfo, sizeof(hwinfo), 1889 "eth%u.mac=%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", 1890 index, mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], 1891 mac_addr[4], mac_addr[5]); 1892 1893 err = nfp_nsp_hwinfo_set(nsp, hwinfo, sizeof(hwinfo)); 1894 nfp_nsp_close(nsp); 1895 if (err) { 1896 netdev_err(netdev, "HWinfo set failed: %d, hwinfo: %s\n", 1897 err, hwinfo); 1898 return -EOPNOTSUPP; 1899 } 1900 1901 return 0; 1902 } 1903 1904 static int 1905 nfp_net_get_eeprom(struct net_device *netdev, 1906 struct ethtool_eeprom *eeprom, u8 *bytes) 1907 { 1908 struct nfp_net *nn = netdev_priv(netdev); 1909 u8 buf[NFP_EEPROM_LEN] = {}; 1910 1911 if (eeprom->len == 0) 1912 return -EINVAL; 1913 1914 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 1915 return -EOPNOTSUPP; 1916 1917 eeprom->magic = nn->pdev->vendor | (nn->pdev->device << 16); 1918 memcpy(bytes, buf + eeprom->offset, eeprom->len); 1919 1920 return 0; 1921 } 1922 1923 static int 1924 nfp_net_set_eeprom(struct net_device *netdev, 1925 struct ethtool_eeprom *eeprom, u8 *bytes) 1926 { 1927 struct nfp_net *nn = netdev_priv(netdev); 1928 u8 buf[NFP_EEPROM_LEN] = {}; 1929 1930 if (eeprom->len == 0) 1931 return -EINVAL; 1932 1933 if (eeprom->magic != (nn->pdev->vendor | nn->pdev->device << 16)) 1934 return -EINVAL; 1935 1936 if (nfp_net_get_port_mac_by_hwinfo(netdev, buf)) 1937 return -EOPNOTSUPP; 1938 1939 memcpy(buf + eeprom->offset, bytes, eeprom->len); 1940 if (nfp_net_set_port_mac_by_hwinfo(netdev, buf)) 1941 return -EOPNOTSUPP; 1942 1943 return 0; 1944 } 1945 1946 static const struct ethtool_ops nfp_net_ethtool_ops = { 1947 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 1948 ETHTOOL_COALESCE_MAX_FRAMES | 1949 ETHTOOL_COALESCE_USE_ADAPTIVE, 1950 .get_drvinfo = nfp_net_get_drvinfo, 1951 .nway_reset = nfp_net_nway_reset, 1952 .get_link = ethtool_op_get_link, 1953 .get_ringparam = nfp_net_get_ringparam, 1954 .set_ringparam = nfp_net_set_ringparam, 1955 .self_test = nfp_net_self_test, 1956 .get_strings = nfp_net_get_strings, 1957 .get_ethtool_stats = nfp_net_get_stats, 1958 .get_sset_count = nfp_net_get_sset_count, 1959 .get_rxnfc = nfp_net_get_rxnfc, 1960 .set_rxnfc = nfp_net_set_rxnfc, 1961 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size, 1962 .get_rxfh_key_size = nfp_net_get_rxfh_key_size, 1963 .get_rxfh = nfp_net_get_rxfh, 1964 .set_rxfh = nfp_net_set_rxfh, 1965 .get_regs_len = nfp_net_get_regs_len, 1966 .get_regs = nfp_net_get_regs, 1967 .set_dump = nfp_app_set_dump, 1968 .get_dump_flag = nfp_app_get_dump_flag, 1969 .get_dump_data = nfp_app_get_dump_data, 1970 .get_eeprom_len = nfp_net_get_eeprom_len, 1971 .get_eeprom = nfp_net_get_eeprom, 1972 .set_eeprom = nfp_net_set_eeprom, 1973 .get_module_info = nfp_port_get_module_info, 1974 .get_module_eeprom = nfp_port_get_module_eeprom, 1975 .get_coalesce = nfp_net_get_coalesce, 1976 .set_coalesce = nfp_net_set_coalesce, 1977 .get_channels = nfp_net_get_channels, 1978 .set_channels = nfp_net_set_channels, 1979 .get_link_ksettings = nfp_net_get_link_ksettings, 1980 .set_link_ksettings = nfp_net_set_link_ksettings, 1981 .get_fecparam = nfp_port_get_fecparam, 1982 .set_fecparam = nfp_port_set_fecparam, 1983 .get_pauseparam = nfp_port_get_pauseparam, 1984 .set_phys_id = nfp_net_set_phys_id, 1985 }; 1986 1987 const struct ethtool_ops nfp_port_ethtool_ops = { 1988 .get_drvinfo = nfp_app_get_drvinfo, 1989 .nway_reset = nfp_net_nway_reset, 1990 .get_link = ethtool_op_get_link, 1991 .get_strings = nfp_port_get_strings, 1992 .get_ethtool_stats = nfp_port_get_stats, 1993 .self_test = nfp_net_self_test, 1994 .get_sset_count = nfp_port_get_sset_count, 1995 .set_dump = nfp_app_set_dump, 1996 .get_dump_flag = nfp_app_get_dump_flag, 1997 .get_dump_data = nfp_app_get_dump_data, 1998 .get_module_info = nfp_port_get_module_info, 1999 .get_module_eeprom = nfp_port_get_module_eeprom, 2000 .get_link_ksettings = nfp_net_get_link_ksettings, 2001 .set_link_ksettings = nfp_net_set_link_ksettings, 2002 .get_fecparam = nfp_port_get_fecparam, 2003 .set_fecparam = nfp_port_set_fecparam, 2004 .get_pauseparam = nfp_port_get_pauseparam, 2005 .set_phys_id = nfp_net_set_phys_id, 2006 }; 2007 2008 void nfp_net_set_ethtool_ops(struct net_device *netdev) 2009 { 2010 netdev->ethtool_ops = &nfp_net_ethtool_ops; 2011 } 2012