2 * Copyright (C) 2015-2017 Netronome Systems, Inc.
4 * This software is dual licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree or the BSD 2-Clause License provided below. You have the
7 * option to license this software under the complete terms of either license.
9 * The BSD 2-Clause License:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * 1. Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * 2. Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 * Netronome network device driver: ethtool support
37 * Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
38 * Jason McMullan <jason.mcmullan@netronome.com>
39 * Rolf Neugebauer <rolf.neugebauer@netronome.com>
40 * Brad Petrus <brad.petrus@netronome.com>
43 #include <linux/bitfield.h>
44 #include <linux/kernel.h>
45 #include <linux/netdevice.h>
46 #include <linux/etherdevice.h>
47 #include <linux/interrupt.h>
48 #include <linux/pci.h>
49 #include <linux/ethtool.h>
51 #include "nfpcore/nfp.h"
52 #include "nfpcore/nfp_nsp.h"
54 #include "nfp_net_ctrl.h"
59 NFP_DUMP_NSP_DIAG = 0,
63 char name[ETH_GSTRING_LEN];
67 static const struct nfp_et_stat nfp_net_et_stats[] = {
68 /* Stats from the device */
69 { "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS },
70 { "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS },
71 { "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS },
72 { "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS },
73 { "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS },
74 { "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS },
75 { "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES },
76 { "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES },
77 { "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES },
79 { "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS },
80 { "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS },
81 { "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS },
82 { "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS },
83 { "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS },
84 { "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS },
85 { "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES },
86 { "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES },
87 { "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES },
89 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
90 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
91 /* see comments in outro functions in nfp_bpf_jit.c to find out
92 * how different BPF modes use app-specific counters
94 { "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES },
95 { "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES },
96 { "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES },
97 { "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES },
98 { "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES },
99 { "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES },
102 static const struct nfp_et_stat nfp_mac_et_stats[] = {
103 { "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, },
104 { "rx_frame_too_long_errors",
105 NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, },
106 { "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, },
107 { "rx_vlan_received_ok", NFP_MAC_STATS_RX_VLAN_RECEIVED_OK, },
108 { "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, },
109 { "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, },
110 { "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, },
111 { "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, },
112 { "rx_pause_mac_ctrl_frames",
113 NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, },
114 { "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, },
115 { "rx_frame_check_sequence_errors",
116 NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, },
117 { "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, },
118 { "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, },
119 { "rx_pkts", NFP_MAC_STATS_RX_PKTS, },
120 { "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, },
121 { "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, },
122 { "rx_pkts_65_to_127_octets",
123 NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, },
124 { "rx_pkts_128_to_255_octets",
125 NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, },
126 { "rx_pkts_256_to_511_octets",
127 NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, },
128 { "rx_pkts_512_to_1023_octets",
129 NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, },
130 { "rx_pkts_1024_to_1518_octets",
131 NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, },
132 { "rx_pkts_1519_to_max_octets",
133 NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, },
134 { "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, },
135 { "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, },
136 { "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, },
137 { "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, },
138 { "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, },
139 { "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, },
140 { "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, },
141 { "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, },
142 { "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, },
143 { "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, },
144 { "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, },
145 { "rx_mac_ctrl_frames_received",
146 NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, },
147 { "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, },
148 { "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, },
149 { "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, },
150 { "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, },
151 { "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, },
152 { "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, },
153 { "tx_pause_mac_ctrl_frames",
154 NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, },
155 { "tx_frames_transmitted_ok",
156 NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, },
157 { "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, },
158 { "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, },
159 { "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, },
160 { "tx_pkts_65_to_127_octets",
161 NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, },
162 { "tx_pkts_128_to_255_octets",
163 NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, },
164 { "tx_pkts_256_to_511_octets",
165 NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, },
166 { "tx_pkts_512_to_1023_octets",
167 NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, },
168 { "tx_pkts_1024_to_1518_octets",
169 NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, },
170 { "tx_pkts_1519_to_max_octets",
171 NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, },
172 { "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, },
173 { "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, },
174 { "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, },
175 { "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, },
176 { "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, },
177 { "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, },
178 { "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, },
179 { "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, },
182 #define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)
183 #define NN_ET_SWITCH_STATS_LEN 9
184 #define NN_RVEC_GATHER_STATS 8
185 #define NN_RVEC_PER_Q_STATS 3
187 static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
194 nsp = nfp_nsp_open(app->cpp);
198 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",
199 nfp_nsp_get_abi_ver_major(nsp),
200 nfp_nsp_get_abi_ver_minor(nsp));
206 nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,
207 const char *vnic_version, struct ethtool_drvinfo *drvinfo)
209 char nsp_version[ETHTOOL_FWVERS_LEN] = {};
211 strlcpy(drvinfo->driver, pdev->driver->name, sizeof(drvinfo->driver));
212 strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version));
214 nfp_net_get_nspinfo(app, nsp_version);
215 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
216 "%s %s %s %s", vnic_version, nsp_version,
217 nfp_app_mip_name(app), nfp_app_name(app));
221 nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
223 char vnic_version[ETHTOOL_FWVERS_LEN] = {};
224 struct nfp_net *nn = netdev_priv(netdev);
226 snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d",
227 nn->fw_ver.resv, nn->fw_ver.class,
228 nn->fw_ver.major, nn->fw_ver.minor);
229 strlcpy(drvinfo->bus_info, pci_name(nn->pdev),
230 sizeof(drvinfo->bus_info));
232 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
236 nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
240 app = nfp_app_from_netdev(netdev);
244 nfp_get_drvinfo(app, app->pdev, "*", drvinfo);
248 nfp_net_set_fec_link_mode(struct nfp_eth_table_port *eth_port,
249 struct ethtool_link_ksettings *c)
253 ethtool_link_ksettings_add_link_mode(c, supported, FEC_NONE);
254 if (!nfp_eth_can_support_fec(eth_port)) {
255 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_NONE);
259 modes = nfp_eth_supported_fec_modes(eth_port);
260 if (modes & NFP_FEC_BASER) {
261 ethtool_link_ksettings_add_link_mode(c, supported, FEC_BASER);
262 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_BASER);
265 if (modes & NFP_FEC_REED_SOLOMON) {
266 ethtool_link_ksettings_add_link_mode(c, supported, FEC_RS);
267 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_RS);
272 * nfp_net_get_link_ksettings - Get Link Speed settings
273 * @netdev: network interface device structure
274 * @cmd: ethtool command
276 * Reports speed settings based on info in the BAR provided by the fw.
279 nfp_net_get_link_ksettings(struct net_device *netdev,
280 struct ethtool_link_ksettings *cmd)
282 static const u32 ls_to_ethtool[] = {
283 [NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = 0,
284 [NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = SPEED_UNKNOWN,
285 [NFP_NET_CFG_STS_LINK_RATE_1G] = SPEED_1000,
286 [NFP_NET_CFG_STS_LINK_RATE_10G] = SPEED_10000,
287 [NFP_NET_CFG_STS_LINK_RATE_25G] = SPEED_25000,
288 [NFP_NET_CFG_STS_LINK_RATE_40G] = SPEED_40000,
289 [NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000,
290 [NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000,
292 struct nfp_eth_table_port *eth_port;
293 struct nfp_port *port;
297 /* Init to unknowns */
298 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
299 cmd->base.port = PORT_OTHER;
300 cmd->base.speed = SPEED_UNKNOWN;
301 cmd->base.duplex = DUPLEX_UNKNOWN;
303 port = nfp_port_from_netdev(netdev);
304 eth_port = nfp_port_get_eth_port(port);
306 cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ?
307 AUTONEG_ENABLE : AUTONEG_DISABLE;
308 nfp_net_set_fec_link_mode(eth_port, cmd);
311 if (!netif_carrier_ok(netdev))
314 /* Use link speed from ETH table if available, otherwise try the BAR */
316 cmd->base.port = eth_port->port_type;
317 cmd->base.speed = eth_port->speed;
318 cmd->base.duplex = DUPLEX_FULL;
322 if (!nfp_netdev_is_nfp_net(netdev))
324 nn = netdev_priv(netdev);
326 sts = nn_readl(nn, NFP_NET_CFG_STS);
328 ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts);
329 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED)
332 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNKNOWN ||
333 ls >= ARRAY_SIZE(ls_to_ethtool))
336 cmd->base.speed = ls_to_ethtool[sts];
337 cmd->base.duplex = DUPLEX_FULL;
343 nfp_net_set_link_ksettings(struct net_device *netdev,
344 const struct ethtool_link_ksettings *cmd)
346 struct nfp_eth_table_port *eth_port;
347 struct nfp_port *port;
351 port = nfp_port_from_netdev(netdev);
352 eth_port = __nfp_port_get_eth_port(port);
356 if (netif_running(netdev)) {
357 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n");
361 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
365 err = __nfp_eth_set_aneg(nsp, cmd->base.autoneg == AUTONEG_ENABLE ?
366 NFP_ANEG_AUTO : NFP_ANEG_DISABLED);
369 if (cmd->base.speed != SPEED_UNKNOWN) {
370 u32 speed = cmd->base.speed / eth_port->lanes;
372 err = __nfp_eth_set_speed(nsp, speed);
377 err = nfp_eth_config_commit_end(nsp);
379 return 0; /* no change */
381 nfp_net_refresh_port_table(port);
386 nfp_eth_config_cleanup_end(nsp);
390 static void nfp_net_get_ringparam(struct net_device *netdev,
391 struct ethtool_ringparam *ring)
393 struct nfp_net *nn = netdev_priv(netdev);
395 ring->rx_max_pending = NFP_NET_MAX_RX_DESCS;
396 ring->tx_max_pending = NFP_NET_MAX_TX_DESCS;
397 ring->rx_pending = nn->dp.rxd_cnt;
398 ring->tx_pending = nn->dp.txd_cnt;
401 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt)
403 struct nfp_net_dp *dp;
405 dp = nfp_net_clone_dp(nn);
409 dp->rxd_cnt = rxd_cnt;
410 dp->txd_cnt = txd_cnt;
412 return nfp_net_ring_reconfig(nn, dp, NULL);
415 static int nfp_net_set_ringparam(struct net_device *netdev,
416 struct ethtool_ringparam *ring)
418 struct nfp_net *nn = netdev_priv(netdev);
419 u32 rxd_cnt, txd_cnt;
421 /* We don't have separate queues/rings for small/large frames. */
422 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
425 /* Round up to supported values */
426 rxd_cnt = roundup_pow_of_two(ring->rx_pending);
427 txd_cnt = roundup_pow_of_two(ring->tx_pending);
429 if (rxd_cnt < NFP_NET_MIN_RX_DESCS || rxd_cnt > NFP_NET_MAX_RX_DESCS ||
430 txd_cnt < NFP_NET_MIN_TX_DESCS || txd_cnt > NFP_NET_MAX_TX_DESCS)
433 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt)
436 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n",
437 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt);
439 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt);
442 static __printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...)
447 vsnprintf(data, ETH_GSTRING_LEN, fmt, args);
450 return data + ETH_GSTRING_LEN;
453 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)
455 struct nfp_net *nn = netdev_priv(netdev);
457 return NN_RVEC_GATHER_STATS + nn->dp.num_r_vecs * NN_RVEC_PER_Q_STATS;
460 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data)
462 struct nfp_net *nn = netdev_priv(netdev);
465 for (i = 0; i < nn->dp.num_r_vecs; i++) {
466 data = nfp_pr_et(data, "rvec_%u_rx_pkts", i);
467 data = nfp_pr_et(data, "rvec_%u_tx_pkts", i);
468 data = nfp_pr_et(data, "rvec_%u_tx_busy", i);
471 data = nfp_pr_et(data, "hw_rx_csum_ok");
472 data = nfp_pr_et(data, "hw_rx_csum_inner_ok");
473 data = nfp_pr_et(data, "hw_rx_csum_err");
474 data = nfp_pr_et(data, "rx_replace_buf_alloc_fail");
475 data = nfp_pr_et(data, "hw_tx_csum");
476 data = nfp_pr_et(data, "hw_tx_inner_csum");
477 data = nfp_pr_et(data, "tx_gather");
478 data = nfp_pr_et(data, "tx_lso");
483 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
485 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {};
486 struct nfp_net *nn = netdev_priv(netdev);
487 u64 tmp[NN_RVEC_GATHER_STATS];
490 for (i = 0; i < nn->dp.num_r_vecs; i++) {
494 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync);
495 data[0] = nn->r_vecs[i].rx_pkts;
496 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok;
497 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok;
498 tmp[2] = nn->r_vecs[i].hw_csum_rx_error;
499 tmp[3] = nn->r_vecs[i].rx_replace_buf_alloc_fail;
500 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start));
503 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync);
504 data[1] = nn->r_vecs[i].tx_pkts;
505 data[2] = nn->r_vecs[i].tx_busy;
506 tmp[4] = nn->r_vecs[i].hw_csum_tx;
507 tmp[5] = nn->r_vecs[i].hw_csum_tx_inner;
508 tmp[6] = nn->r_vecs[i].tx_gather;
509 tmp[7] = nn->r_vecs[i].tx_lso;
510 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));
512 data += NN_RVEC_PER_Q_STATS;
514 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
515 gathered_stats[j] += tmp[j];
518 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
519 *data++ = gathered_stats[j];
525 nfp_vnic_get_hw_stats_count(unsigned int rx_rings, unsigned int tx_rings)
527 return NN_ET_GLOBAL_STATS_LEN + (rx_rings + tx_rings) * 2;
531 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int rx_rings,
532 unsigned int tx_rings, bool repr)
536 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2);
537 /* If repr is true first add SWITCH_STATS_LEN and then subtract it
538 * effectively swapping the RX and TX statistics (giving us the RX
539 * and TX from perspective of the switch).
541 swap_off = repr * NN_ET_SWITCH_STATS_LEN;
543 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++)
544 data = nfp_pr_et(data, nfp_net_et_stats[i + swap_off].name);
546 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++)
547 data = nfp_pr_et(data, nfp_net_et_stats[i - swap_off].name);
549 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++)
550 data = nfp_pr_et(data, nfp_net_et_stats[i].name);
552 for (i = 0; i < tx_rings; i++) {
553 data = nfp_pr_et(data, "txq_%u_pkts", i);
554 data = nfp_pr_et(data, "txq_%u_bytes", i);
557 for (i = 0; i < rx_rings; i++) {
558 data = nfp_pr_et(data, "rxq_%u_pkts", i);
559 data = nfp_pr_et(data, "rxq_%u_bytes", i);
566 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem,
567 unsigned int rx_rings, unsigned int tx_rings)
571 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++)
572 *data++ = readq(mem + nfp_net_et_stats[i].off);
574 for (i = 0; i < tx_rings; i++) {
575 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
576 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
579 for (i = 0; i < rx_rings; i++) {
580 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
581 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);
587 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev)
589 struct nfp_port *port;
591 port = nfp_port_from_netdev(netdev);
592 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
595 return ARRAY_SIZE(nfp_mac_et_stats);
598 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data)
600 struct nfp_port *port;
603 port = nfp_port_from_netdev(netdev);
604 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
607 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
608 data = nfp_pr_et(data, "mac.%s", nfp_mac_et_stats[i].name);
613 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data)
615 struct nfp_port *port;
618 port = nfp_port_from_netdev(netdev);
619 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
622 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
623 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off);
628 static void nfp_net_get_strings(struct net_device *netdev,
629 u32 stringset, u8 *data)
631 struct nfp_net *nn = netdev_priv(netdev);
635 data = nfp_vnic_get_sw_stats_strings(netdev, data);
636 data = nfp_vnic_get_hw_stats_strings(data, nn->dp.num_rx_rings,
639 data = nfp_mac_get_stats_strings(netdev, data);
645 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
648 struct nfp_net *nn = netdev_priv(netdev);
650 data = nfp_vnic_get_sw_stats(netdev, data);
651 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,
652 nn->dp.num_rx_rings, nn->dp.num_tx_rings);
653 data = nfp_mac_get_stats(netdev, data);
656 static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
658 struct nfp_net *nn = netdev_priv(netdev);
662 return nfp_vnic_get_sw_stats_count(netdev) +
663 nfp_vnic_get_hw_stats_count(nn->dp.num_rx_rings,
664 nn->dp.num_tx_rings) +
665 nfp_mac_get_stats_count(netdev);
671 static void nfp_port_get_strings(struct net_device *netdev,
672 u32 stringset, u8 *data)
674 struct nfp_port *port = nfp_port_from_netdev(netdev);
678 if (nfp_port_is_vnic(port))
679 data = nfp_vnic_get_hw_stats_strings(data, 0, 0, true);
681 data = nfp_mac_get_stats_strings(netdev, data);
687 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
690 struct nfp_port *port = nfp_port_from_netdev(netdev);
692 if (nfp_port_is_vnic(port))
693 data = nfp_vnic_get_hw_stats(data, port->vnic, 0, 0);
695 data = nfp_mac_get_stats(netdev, data);
698 static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
700 struct nfp_port *port = nfp_port_from_netdev(netdev);
705 if (nfp_port_is_vnic(port))
706 count = nfp_vnic_get_hw_stats_count(0, 0);
708 count = nfp_mac_get_stats_count(netdev);
715 static int nfp_port_fec_ethtool_to_nsp(u32 fec)
718 case ETHTOOL_FEC_AUTO:
719 return NFP_FEC_AUTO_BIT;
720 case ETHTOOL_FEC_OFF:
721 return NFP_FEC_DISABLED_BIT;
723 return NFP_FEC_REED_SOLOMON_BIT;
724 case ETHTOOL_FEC_BASER:
725 return NFP_FEC_BASER_BIT;
727 /* NSP only supports a single mode at a time */
732 static u32 nfp_port_fec_nsp_to_ethtool(u32 fec)
736 if (fec & NFP_FEC_AUTO)
737 result |= ETHTOOL_FEC_AUTO;
738 if (fec & NFP_FEC_BASER)
739 result |= ETHTOOL_FEC_BASER;
740 if (fec & NFP_FEC_REED_SOLOMON)
741 result |= ETHTOOL_FEC_RS;
742 if (fec & NFP_FEC_DISABLED)
743 result |= ETHTOOL_FEC_OFF;
745 return result ?: ETHTOOL_FEC_NONE;
749 nfp_port_get_fecparam(struct net_device *netdev,
750 struct ethtool_fecparam *param)
752 struct nfp_eth_table_port *eth_port;
753 struct nfp_port *port;
755 param->active_fec = ETHTOOL_FEC_NONE_BIT;
756 param->fec = ETHTOOL_FEC_NONE_BIT;
758 port = nfp_port_from_netdev(netdev);
759 eth_port = nfp_port_get_eth_port(port);
763 if (!nfp_eth_can_support_fec(eth_port))
766 param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported);
767 param->active_fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec);
773 nfp_port_set_fecparam(struct net_device *netdev,
774 struct ethtool_fecparam *param)
776 struct nfp_eth_table_port *eth_port;
777 struct nfp_port *port;
780 port = nfp_port_from_netdev(netdev);
781 eth_port = nfp_port_get_eth_port(port);
785 if (!nfp_eth_can_support_fec(eth_port))
788 fec = nfp_port_fec_ethtool_to_nsp(param->fec);
792 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec);
794 /* Only refresh if we did something */
795 nfp_net_refresh_port_table(port);
797 return err < 0 ? err : 0;
800 /* RX network flow classification (RSS, filters, etc)
802 static u32 ethtool_flow_to_nfp_flag(u32 flow_type)
804 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = {
805 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP,
806 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP,
807 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP,
808 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP,
809 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4,
810 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6,
813 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp))
816 return xlate_ethtool_to_nfp[flow_type];
819 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,
820 struct ethtool_rxnfc *cmd)
826 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
829 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);
833 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
834 if (nn->rss_cfg & nfp_rss_flag)
835 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
840 static int nfp_net_get_rxnfc(struct net_device *netdev,
841 struct ethtool_rxnfc *cmd, u32 *rule_locs)
843 struct nfp_net *nn = netdev_priv(netdev);
846 case ETHTOOL_GRXRINGS:
847 cmd->data = nn->dp.num_rx_rings;
850 return nfp_net_get_rss_hash_opts(nn, cmd);
856 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,
857 struct ethtool_rxnfc *nfc)
859 u32 new_rss_cfg = nn->rss_cfg;
863 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
866 /* RSS only supports IP SA/DA and L4 src/dst ports */
867 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
868 RXH_L4_B_0_1 | RXH_L4_B_2_3))
871 /* We need at least the IP SA/DA fields for hashing */
872 if (!(nfc->data & RXH_IP_SRC) ||
873 !(nfc->data & RXH_IP_DST))
876 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type);
880 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
882 new_rss_cfg &= ~nfp_rss_flag;
884 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
885 new_rss_cfg |= nfp_rss_flag;
891 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc);
892 new_rss_cfg |= NFP_NET_CFG_RSS_MASK;
894 if (new_rss_cfg == nn->rss_cfg)
897 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL);
898 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
902 nn->rss_cfg = new_rss_cfg;
904 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg);
908 static int nfp_net_set_rxnfc(struct net_device *netdev,
909 struct ethtool_rxnfc *cmd)
911 struct nfp_net *nn = netdev_priv(netdev);
915 return nfp_net_set_rss_hash_opt(nn, cmd);
921 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)
923 struct nfp_net *nn = netdev_priv(netdev);
925 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
928 return ARRAY_SIZE(nn->rss_itbl);
931 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)
933 struct nfp_net *nn = netdev_priv(netdev);
935 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
938 return nfp_net_rss_key_sz(nn);
941 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
944 struct nfp_net *nn = netdev_priv(netdev);
947 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
951 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
952 indir[i] = nn->rss_itbl[i];
954 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn));
956 *hfunc = nn->rss_hfunc;
957 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
958 *hfunc = ETH_RSS_HASH_UNKNOWN;
964 static int nfp_net_set_rxfh(struct net_device *netdev,
965 const u32 *indir, const u8 *key,
968 struct nfp_net *nn = netdev_priv(netdev);
971 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
972 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc))
979 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn));
980 nfp_net_rss_write_key(nn);
983 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
984 nn->rss_itbl[i] = indir[i];
986 nfp_net_rss_write_itbl(nn);
989 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
992 /* Dump BAR registers
994 static int nfp_net_get_regs_len(struct net_device *netdev)
996 return NFP_NET_CFG_BAR_SZ;
999 static void nfp_net_get_regs(struct net_device *netdev,
1000 struct ethtool_regs *regs, void *p)
1002 struct nfp_net *nn = netdev_priv(netdev);
1006 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION);
1008 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++)
1009 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32)));
1012 static int nfp_net_get_coalesce(struct net_device *netdev,
1013 struct ethtool_coalesce *ec)
1015 struct nfp_net *nn = netdev_priv(netdev);
1017 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
1020 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs;
1021 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames;
1022 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs;
1023 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames;
1028 /* Other debug dumps
1031 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer)
1033 struct nfp_resource *res;
1040 dump->flag = NFP_DUMP_NSP_DIAG;
1042 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG);
1044 return PTR_ERR(res);
1047 if (dump->len != nfp_resource_size(res)) {
1052 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res),
1053 nfp_resource_address(res),
1055 if (ret != dump->len)
1056 ret = ret < 0 ? ret : -EIO;
1060 dump->len = nfp_resource_size(res);
1064 nfp_resource_release(res);
1069 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)
1071 struct nfp_app *app = nfp_app_from_netdev(netdev);
1076 if (val->flag != NFP_DUMP_NSP_DIAG)
1083 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
1085 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, NULL);
1089 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
1092 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, buffer);
1095 static int nfp_net_set_coalesce(struct net_device *netdev,
1096 struct ethtool_coalesce *ec)
1098 struct nfp_net *nn = netdev_priv(netdev);
1099 unsigned int factor;
1101 if (ec->rx_coalesce_usecs_irq ||
1102 ec->rx_max_coalesced_frames_irq ||
1103 ec->tx_coalesce_usecs_irq ||
1104 ec->tx_max_coalesced_frames_irq ||
1105 ec->stats_block_coalesce_usecs ||
1106 ec->use_adaptive_rx_coalesce ||
1107 ec->use_adaptive_tx_coalesce ||
1109 ec->rx_coalesce_usecs_low ||
1110 ec->rx_max_coalesced_frames_low ||
1111 ec->tx_coalesce_usecs_low ||
1112 ec->tx_max_coalesced_frames_low ||
1113 ec->pkt_rate_high ||
1114 ec->rx_coalesce_usecs_high ||
1115 ec->rx_max_coalesced_frames_high ||
1116 ec->tx_coalesce_usecs_high ||
1117 ec->tx_max_coalesced_frames_high ||
1118 ec->rate_sample_interval)
1121 /* Compute factor used to convert coalesce '_usecs' parameters to
1122 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp
1125 factor = nn->me_freq_mhz / 16;
1127 /* Each pair of (usecs, max_frames) fields specifies that interrupts
1128 * should be coalesced until
1129 * (usecs > 0 && time_since_first_completion >= usecs) ||
1130 * (max_frames > 0 && completed_frames >= max_frames)
1132 * It is illegal to set both usecs and max_frames to zero as this would
1133 * cause interrupts to never be generated. To disable coalescing, set
1134 * usecs = 0 and max_frames = 1.
1136 * Some implementations ignore the value of max_frames and use the
1137 * condition time_since_first_completion >= usecs
1140 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
1143 /* ensure valid configuration */
1144 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames)
1147 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames)
1150 if (ec->rx_coalesce_usecs * factor >= ((1 << 16) - 1))
1153 if (ec->tx_coalesce_usecs * factor >= ((1 << 16) - 1))
1156 if (ec->rx_max_coalesced_frames >= ((1 << 16) - 1))
1159 if (ec->tx_max_coalesced_frames >= ((1 << 16) - 1))
1162 /* configuration is valid */
1163 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs;
1164 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames;
1165 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs;
1166 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames;
1168 /* write configuration to device */
1169 nfp_net_coalesce_write_cfg(nn);
1170 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD);
1173 static void nfp_net_get_channels(struct net_device *netdev,
1174 struct ethtool_channels *channel)
1176 struct nfp_net *nn = netdev_priv(netdev);
1177 unsigned int num_tx_rings;
1179 num_tx_rings = nn->dp.num_tx_rings;
1180 if (nn->dp.xdp_prog)
1181 num_tx_rings -= nn->dp.num_rx_rings;
1183 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs);
1184 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs);
1185 channel->max_combined = min(channel->max_rx, channel->max_tx);
1186 channel->max_other = NFP_NET_NON_Q_VECTORS;
1187 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings);
1188 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count;
1189 channel->tx_count = num_tx_rings - channel->combined_count;
1190 channel->other_count = NFP_NET_NON_Q_VECTORS;
1193 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,
1194 unsigned int total_tx)
1196 struct nfp_net_dp *dp;
1198 dp = nfp_net_clone_dp(nn);
1202 dp->num_rx_rings = total_rx;
1203 dp->num_tx_rings = total_tx;
1204 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */
1206 dp->num_tx_rings += total_rx;
1208 return nfp_net_ring_reconfig(nn, dp, NULL);
1211 static int nfp_net_set_channels(struct net_device *netdev,
1212 struct ethtool_channels *channel)
1214 struct nfp_net *nn = netdev_priv(netdev);
1215 unsigned int total_rx, total_tx;
1217 /* Reject unsupported */
1218 if (!channel->combined_count ||
1219 channel->other_count != NFP_NET_NON_Q_VECTORS ||
1220 (channel->rx_count && channel->tx_count))
1223 total_rx = channel->combined_count + channel->rx_count;
1224 total_tx = channel->combined_count + channel->tx_count;
1226 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) ||
1227 total_tx > min(nn->max_tx_rings, nn->max_r_vecs))
1230 return nfp_net_set_num_rings(nn, total_rx, total_tx);
1233 static const struct ethtool_ops nfp_net_ethtool_ops = {
1234 .get_drvinfo = nfp_net_get_drvinfo,
1235 .get_link = ethtool_op_get_link,
1236 .get_ringparam = nfp_net_get_ringparam,
1237 .set_ringparam = nfp_net_set_ringparam,
1238 .get_strings = nfp_net_get_strings,
1239 .get_ethtool_stats = nfp_net_get_stats,
1240 .get_sset_count = nfp_net_get_sset_count,
1241 .get_rxnfc = nfp_net_get_rxnfc,
1242 .set_rxnfc = nfp_net_set_rxnfc,
1243 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size,
1244 .get_rxfh_key_size = nfp_net_get_rxfh_key_size,
1245 .get_rxfh = nfp_net_get_rxfh,
1246 .set_rxfh = nfp_net_set_rxfh,
1247 .get_regs_len = nfp_net_get_regs_len,
1248 .get_regs = nfp_net_get_regs,
1249 .set_dump = nfp_app_set_dump,
1250 .get_dump_flag = nfp_app_get_dump_flag,
1251 .get_dump_data = nfp_app_get_dump_data,
1252 .get_coalesce = nfp_net_get_coalesce,
1253 .set_coalesce = nfp_net_set_coalesce,
1254 .get_channels = nfp_net_get_channels,
1255 .set_channels = nfp_net_set_channels,
1256 .get_link_ksettings = nfp_net_get_link_ksettings,
1257 .set_link_ksettings = nfp_net_set_link_ksettings,
1258 .get_fecparam = nfp_port_get_fecparam,
1259 .set_fecparam = nfp_port_set_fecparam,
1262 const struct ethtool_ops nfp_port_ethtool_ops = {
1263 .get_drvinfo = nfp_app_get_drvinfo,
1264 .get_link = ethtool_op_get_link,
1265 .get_strings = nfp_port_get_strings,
1266 .get_ethtool_stats = nfp_port_get_stats,
1267 .get_sset_count = nfp_port_get_sset_count,
1268 .set_dump = nfp_app_set_dump,
1269 .get_dump_flag = nfp_app_get_dump_flag,
1270 .get_dump_data = nfp_app_get_dump_data,
1271 .get_link_ksettings = nfp_net_get_link_ksettings,
1272 .set_link_ksettings = nfp_net_set_link_ksettings,
1273 .get_fecparam = nfp_port_get_fecparam,
1274 .set_fecparam = nfp_port_set_fecparam,
1277 void nfp_net_set_ethtool_ops(struct net_device *netdev)
1279 netdev->ethtool_ops = &nfp_net_ethtool_ops;