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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>
50
51#include "nfpcore/nfp.h"
52#include "nfpcore/nfp_nsp.h"
53#include "nfp_app.h"
54#include "nfp_net_ctrl.h"
55#include "nfp_net.h"
56#include "nfp_port.h"
57
58enum nfp_dump_diag {
59 NFP_DUMP_NSP_DIAG = 0,
60};
61
62struct nfp_et_stat {
63 char name[ETH_GSTRING_LEN];
64 int off;
65};
66
67static const struct nfp_et_stat nfp_net_et_stats[] = {
68
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 },
78
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 },
88
89 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
90 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
91
92
93
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 },
100};
101
102static 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_reveive_ok", NFP_MAC_STATS_RX_VLAN_REVEIVE_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, },
180};
181
182#define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)
183#define NN_ET_SWITCH_STATS_LEN 9
184#define NN_ET_RVEC_GATHER_STATS 7
185
186static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
187{
188 struct nfp_nsp *nsp;
189
190 if (!app)
191 return;
192
193 nsp = nfp_nsp_open(app->cpp);
194 if (IS_ERR(nsp))
195 return;
196
197 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",
198 nfp_nsp_get_abi_ver_major(nsp),
199 nfp_nsp_get_abi_ver_minor(nsp));
200
201 nfp_nsp_close(nsp);
202}
203
204static void
205nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,
206 const char *vnic_version, struct ethtool_drvinfo *drvinfo)
207{
208 char nsp_version[ETHTOOL_FWVERS_LEN] = {};
209
210 strlcpy(drvinfo->driver, pdev->driver->name, sizeof(drvinfo->driver));
211 strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version));
212
213 nfp_net_get_nspinfo(app, nsp_version);
214 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
215 "%s %s %s %s", vnic_version, nsp_version,
216 nfp_app_mip_name(app), nfp_app_name(app));
217}
218
219static void
220nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
221{
222 char vnic_version[ETHTOOL_FWVERS_LEN] = {};
223 struct nfp_net *nn = netdev_priv(netdev);
224
225 snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d",
226 nn->fw_ver.resv, nn->fw_ver.class,
227 nn->fw_ver.major, nn->fw_ver.minor);
228 strlcpy(drvinfo->bus_info, pci_name(nn->pdev),
229 sizeof(drvinfo->bus_info));
230
231 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
232}
233
234static void
235nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
236{
237 struct nfp_app *app;
238
239 app = nfp_app_from_netdev(netdev);
240 if (!app)
241 return;
242
243 nfp_get_drvinfo(app, app->pdev, "*", drvinfo);
244}
245
246
247
248
249
250
251
252
253static int
254nfp_net_get_link_ksettings(struct net_device *netdev,
255 struct ethtool_link_ksettings *cmd)
256{
257 static const u32 ls_to_ethtool[] = {
258 [NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = 0,
259 [NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = SPEED_UNKNOWN,
260 [NFP_NET_CFG_STS_LINK_RATE_1G] = SPEED_1000,
261 [NFP_NET_CFG_STS_LINK_RATE_10G] = SPEED_10000,
262 [NFP_NET_CFG_STS_LINK_RATE_25G] = SPEED_25000,
263 [NFP_NET_CFG_STS_LINK_RATE_40G] = SPEED_40000,
264 [NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000,
265 [NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000,
266 };
267 struct nfp_eth_table_port *eth_port;
268 struct nfp_port *port;
269 struct nfp_net *nn;
270 u32 sts, ls;
271
272
273 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
274 cmd->base.port = PORT_OTHER;
275 cmd->base.speed = SPEED_UNKNOWN;
276 cmd->base.duplex = DUPLEX_UNKNOWN;
277
278 port = nfp_port_from_netdev(netdev);
279 eth_port = nfp_port_get_eth_port(port);
280 if (eth_port)
281 cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ?
282 AUTONEG_ENABLE : AUTONEG_DISABLE;
283
284 if (!netif_carrier_ok(netdev))
285 return 0;
286
287
288 if (eth_port) {
289 cmd->base.port = eth_port->port_type;
290 cmd->base.speed = eth_port->speed;
291 cmd->base.duplex = DUPLEX_FULL;
292 return 0;
293 }
294
295 if (!nfp_netdev_is_nfp_net(netdev))
296 return -EOPNOTSUPP;
297 nn = netdev_priv(netdev);
298
299 sts = nn_readl(nn, NFP_NET_CFG_STS);
300
301 ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts);
302 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED)
303 return -EOPNOTSUPP;
304
305 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNKNOWN ||
306 ls >= ARRAY_SIZE(ls_to_ethtool))
307 return 0;
308
309 cmd->base.speed = ls_to_ethtool[sts];
310 cmd->base.duplex = DUPLEX_FULL;
311
312 return 0;
313}
314
315static int
316nfp_net_set_link_ksettings(struct net_device *netdev,
317 const struct ethtool_link_ksettings *cmd)
318{
319 struct nfp_eth_table_port *eth_port;
320 struct nfp_port *port;
321 struct nfp_nsp *nsp;
322 int err;
323
324 port = nfp_port_from_netdev(netdev);
325 eth_port = __nfp_port_get_eth_port(port);
326 if (!eth_port)
327 return -EOPNOTSUPP;
328
329 if (netif_running(netdev)) {
330 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until reboot.\n");
331 return -EBUSY;
332 }
333
334 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
335 if (IS_ERR(nsp))
336 return PTR_ERR(nsp);
337
338 err = __nfp_eth_set_aneg(nsp, cmd->base.autoneg == AUTONEG_ENABLE ?
339 NFP_ANEG_AUTO : NFP_ANEG_DISABLED);
340 if (err)
341 goto err_bad_set;
342 if (cmd->base.speed != SPEED_UNKNOWN) {
343 u32 speed = cmd->base.speed / eth_port->lanes;
344
345 err = __nfp_eth_set_speed(nsp, speed);
346 if (err)
347 goto err_bad_set;
348 }
349
350 err = nfp_eth_config_commit_end(nsp);
351 if (err > 0)
352 return 0;
353
354 nfp_net_refresh_port_table(port);
355
356 return err;
357
358err_bad_set:
359 nfp_eth_config_cleanup_end(nsp);
360 return err;
361}
362
363static void nfp_net_get_ringparam(struct net_device *netdev,
364 struct ethtool_ringparam *ring)
365{
366 struct nfp_net *nn = netdev_priv(netdev);
367
368 ring->rx_max_pending = NFP_NET_MAX_RX_DESCS;
369 ring->tx_max_pending = NFP_NET_MAX_TX_DESCS;
370 ring->rx_pending = nn->dp.rxd_cnt;
371 ring->tx_pending = nn->dp.txd_cnt;
372}
373
374static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt)
375{
376 struct nfp_net_dp *dp;
377
378 dp = nfp_net_clone_dp(nn);
379 if (!dp)
380 return -ENOMEM;
381
382 dp->rxd_cnt = rxd_cnt;
383 dp->txd_cnt = txd_cnt;
384
385 return nfp_net_ring_reconfig(nn, dp, NULL);
386}
387
388static int nfp_net_set_ringparam(struct net_device *netdev,
389 struct ethtool_ringparam *ring)
390{
391 struct nfp_net *nn = netdev_priv(netdev);
392 u32 rxd_cnt, txd_cnt;
393
394
395 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
396 return -EINVAL;
397
398
399 rxd_cnt = roundup_pow_of_two(ring->rx_pending);
400 txd_cnt = roundup_pow_of_two(ring->tx_pending);
401
402 if (rxd_cnt < NFP_NET_MIN_RX_DESCS || rxd_cnt > NFP_NET_MAX_RX_DESCS ||
403 txd_cnt < NFP_NET_MIN_TX_DESCS || txd_cnt > NFP_NET_MAX_TX_DESCS)
404 return -EINVAL;
405
406 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt)
407 return 0;
408
409 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n",
410 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt);
411
412 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt);
413}
414
415static __printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...)
416{
417 va_list args;
418
419 va_start(args, fmt);
420 vsnprintf(data, ETH_GSTRING_LEN, fmt, args);
421 va_end(args);
422
423 return data + ETH_GSTRING_LEN;
424}
425
426static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)
427{
428 struct nfp_net *nn = netdev_priv(netdev);
429
430 return NN_ET_RVEC_GATHER_STATS + nn->dp.num_r_vecs * 3;
431}
432
433static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data)
434{
435 struct nfp_net *nn = netdev_priv(netdev);
436 int i;
437
438 for (i = 0; i < nn->dp.num_r_vecs; i++) {
439 data = nfp_pr_et(data, "rvec_%u_rx_pkts", i);
440 data = nfp_pr_et(data, "rvec_%u_tx_pkts", i);
441 data = nfp_pr_et(data, "rvec_%u_tx_busy", i);
442 }
443
444 data = nfp_pr_et(data, "hw_rx_csum_ok");
445 data = nfp_pr_et(data, "hw_rx_csum_inner_ok");
446 data = nfp_pr_et(data, "hw_rx_csum_err");
447 data = nfp_pr_et(data, "hw_tx_csum");
448 data = nfp_pr_et(data, "hw_tx_inner_csum");
449 data = nfp_pr_et(data, "tx_gather");
450 data = nfp_pr_et(data, "tx_lso");
451
452 return data;
453}
454
455static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
456{
457 u64 gathered_stats[NN_ET_RVEC_GATHER_STATS] = {};
458 struct nfp_net *nn = netdev_priv(netdev);
459 u64 tmp[NN_ET_RVEC_GATHER_STATS];
460 unsigned int i, j;
461
462 for (i = 0; i < nn->dp.num_r_vecs; i++) {
463 unsigned int start;
464
465 do {
466 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync);
467 data[0] = nn->r_vecs[i].rx_pkts;
468 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok;
469 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok;
470 tmp[2] = nn->r_vecs[i].hw_csum_rx_error;
471 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start));
472
473 do {
474 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync);
475 data[1] = nn->r_vecs[i].tx_pkts;
476 data[2] = nn->r_vecs[i].tx_busy;
477 tmp[3] = nn->r_vecs[i].hw_csum_tx;
478 tmp[4] = nn->r_vecs[i].hw_csum_tx_inner;
479 tmp[5] = nn->r_vecs[i].tx_gather;
480 tmp[6] = nn->r_vecs[i].tx_lso;
481 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));
482
483 data += 3;
484
485 for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++)
486 gathered_stats[j] += tmp[j];
487 }
488
489 for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++)
490 *data++ = gathered_stats[j];
491
492 return data;
493}
494
495static unsigned int
496nfp_vnic_get_hw_stats_count(unsigned int rx_rings, unsigned int tx_rings)
497{
498 return NN_ET_GLOBAL_STATS_LEN + (rx_rings + tx_rings) * 2;
499}
500
501static u8 *
502nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int rx_rings,
503 unsigned int tx_rings, bool repr)
504{
505 int swap_off, i;
506
507 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2);
508
509
510
511
512 swap_off = repr * NN_ET_SWITCH_STATS_LEN;
513
514 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++)
515 data = nfp_pr_et(data, nfp_net_et_stats[i + swap_off].name);
516
517 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++)
518 data = nfp_pr_et(data, nfp_net_et_stats[i - swap_off].name);
519
520 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++)
521 data = nfp_pr_et(data, nfp_net_et_stats[i].name);
522
523 for (i = 0; i < tx_rings; i++) {
524 data = nfp_pr_et(data, "txq_%u_pkts", i);
525 data = nfp_pr_et(data, "txq_%u_bytes", i);
526 }
527
528 for (i = 0; i < rx_rings; i++) {
529 data = nfp_pr_et(data, "rxq_%u_pkts", i);
530 data = nfp_pr_et(data, "rxq_%u_bytes", i);
531 }
532
533 return data;
534}
535
536static u64 *
537nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem,
538 unsigned int rx_rings, unsigned int tx_rings)
539{
540 unsigned int i;
541
542 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++)
543 *data++ = readq(mem + nfp_net_et_stats[i].off);
544
545 for (i = 0; i < tx_rings; i++) {
546 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
547 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
548 }
549
550 for (i = 0; i < rx_rings; i++) {
551 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
552 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);
553 }
554
555 return data;
556}
557
558static unsigned int nfp_mac_get_stats_count(struct net_device *netdev)
559{
560 struct nfp_port *port;
561
562 port = nfp_port_from_netdev(netdev);
563 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
564 return 0;
565
566 return ARRAY_SIZE(nfp_mac_et_stats);
567}
568
569static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data)
570{
571 struct nfp_port *port;
572 unsigned int i;
573
574 port = nfp_port_from_netdev(netdev);
575 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
576 return data;
577
578 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
579 data = nfp_pr_et(data, "mac.%s", nfp_mac_et_stats[i].name);
580
581 return data;
582}
583
584static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data)
585{
586 struct nfp_port *port;
587 unsigned int i;
588
589 port = nfp_port_from_netdev(netdev);
590 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
591 return data;
592
593 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
594 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off);
595
596 return data;
597}
598
599static void nfp_net_get_strings(struct net_device *netdev,
600 u32 stringset, u8 *data)
601{
602 struct nfp_net *nn = netdev_priv(netdev);
603
604 switch (stringset) {
605 case ETH_SS_STATS:
606 data = nfp_vnic_get_sw_stats_strings(netdev, data);
607 data = nfp_vnic_get_hw_stats_strings(data, nn->dp.num_rx_rings,
608 nn->dp.num_tx_rings,
609 false);
610 data = nfp_mac_get_stats_strings(netdev, data);
611 break;
612 }
613}
614
615static void
616nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
617 u64 *data)
618{
619 struct nfp_net *nn = netdev_priv(netdev);
620
621 data = nfp_vnic_get_sw_stats(netdev, data);
622 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,
623 nn->dp.num_rx_rings, nn->dp.num_tx_rings);
624 data = nfp_mac_get_stats(netdev, data);
625}
626
627static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
628{
629 struct nfp_net *nn = netdev_priv(netdev);
630
631 switch (sset) {
632 case ETH_SS_STATS:
633 return nfp_vnic_get_sw_stats_count(netdev) +
634 nfp_vnic_get_hw_stats_count(nn->dp.num_rx_rings,
635 nn->dp.num_tx_rings) +
636 nfp_mac_get_stats_count(netdev);
637 default:
638 return -EOPNOTSUPP;
639 }
640}
641
642static void nfp_port_get_strings(struct net_device *netdev,
643 u32 stringset, u8 *data)
644{
645 struct nfp_port *port = nfp_port_from_netdev(netdev);
646
647 switch (stringset) {
648 case ETH_SS_STATS:
649 if (nfp_port_is_vnic(port))
650 data = nfp_vnic_get_hw_stats_strings(data, 0, 0, true);
651 else
652 data = nfp_mac_get_stats_strings(netdev, data);
653 break;
654 }
655}
656
657static void
658nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
659 u64 *data)
660{
661 struct nfp_port *port = nfp_port_from_netdev(netdev);
662
663 if (nfp_port_is_vnic(port))
664 data = nfp_vnic_get_hw_stats(data, port->vnic, 0, 0);
665 else
666 data = nfp_mac_get_stats(netdev, data);
667}
668
669static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
670{
671 struct nfp_port *port = nfp_port_from_netdev(netdev);
672 unsigned int count;
673
674 switch (sset) {
675 case ETH_SS_STATS:
676 if (nfp_port_is_vnic(port))
677 count = nfp_vnic_get_hw_stats_count(0, 0);
678 else
679 count = nfp_mac_get_stats_count(netdev);
680 return count;
681 default:
682 return -EOPNOTSUPP;
683 }
684}
685
686
687
688static u32 ethtool_flow_to_nfp_flag(u32 flow_type)
689{
690 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = {
691 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP,
692 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP,
693 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP,
694 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP,
695 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4,
696 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6,
697 };
698
699 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp))
700 return 0;
701
702 return xlate_ethtool_to_nfp[flow_type];
703}
704
705static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,
706 struct ethtool_rxnfc *cmd)
707{
708 u32 nfp_rss_flag;
709
710 cmd->data = 0;
711
712 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
713 return -EOPNOTSUPP;
714
715 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);
716 if (!nfp_rss_flag)
717 return -EINVAL;
718
719 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
720 if (nn->rss_cfg & nfp_rss_flag)
721 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
722
723 return 0;
724}
725
726static int nfp_net_get_rxnfc(struct net_device *netdev,
727 struct ethtool_rxnfc *cmd, u32 *rule_locs)
728{
729 struct nfp_net *nn = netdev_priv(netdev);
730
731 switch (cmd->cmd) {
732 case ETHTOOL_GRXRINGS:
733 cmd->data = nn->dp.num_rx_rings;
734 return 0;
735 case ETHTOOL_GRXFH:
736 return nfp_net_get_rss_hash_opts(nn, cmd);
737 default:
738 return -EOPNOTSUPP;
739 }
740}
741
742static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,
743 struct ethtool_rxnfc *nfc)
744{
745 u32 new_rss_cfg = nn->rss_cfg;
746 u32 nfp_rss_flag;
747 int err;
748
749 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
750 return -EOPNOTSUPP;
751
752
753 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
754 RXH_L4_B_0_1 | RXH_L4_B_2_3))
755 return -EINVAL;
756
757
758 if (!(nfc->data & RXH_IP_SRC) ||
759 !(nfc->data & RXH_IP_DST))
760 return -EINVAL;
761
762 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type);
763 if (!nfp_rss_flag)
764 return -EINVAL;
765
766 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
767 case 0:
768 new_rss_cfg &= ~nfp_rss_flag;
769 break;
770 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
771 new_rss_cfg |= nfp_rss_flag;
772 break;
773 default:
774 return -EINVAL;
775 }
776
777 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc);
778 new_rss_cfg |= NFP_NET_CFG_RSS_MASK;
779
780 if (new_rss_cfg == nn->rss_cfg)
781 return 0;
782
783 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL);
784 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
785 if (err)
786 return err;
787
788 nn->rss_cfg = new_rss_cfg;
789
790 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg);
791 return 0;
792}
793
794static int nfp_net_set_rxnfc(struct net_device *netdev,
795 struct ethtool_rxnfc *cmd)
796{
797 struct nfp_net *nn = netdev_priv(netdev);
798
799 switch (cmd->cmd) {
800 case ETHTOOL_SRXFH:
801 return nfp_net_set_rss_hash_opt(nn, cmd);
802 default:
803 return -EOPNOTSUPP;
804 }
805}
806
807static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)
808{
809 struct nfp_net *nn = netdev_priv(netdev);
810
811 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
812 return 0;
813
814 return ARRAY_SIZE(nn->rss_itbl);
815}
816
817static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)
818{
819 struct nfp_net *nn = netdev_priv(netdev);
820
821 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
822 return -EOPNOTSUPP;
823
824 return nfp_net_rss_key_sz(nn);
825}
826
827static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
828 u8 *hfunc)
829{
830 struct nfp_net *nn = netdev_priv(netdev);
831 int i;
832
833 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
834 return -EOPNOTSUPP;
835
836 if (indir)
837 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
838 indir[i] = nn->rss_itbl[i];
839 if (key)
840 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn));
841 if (hfunc) {
842 *hfunc = nn->rss_hfunc;
843 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
844 *hfunc = ETH_RSS_HASH_UNKNOWN;
845 }
846
847 return 0;
848}
849
850static int nfp_net_set_rxfh(struct net_device *netdev,
851 const u32 *indir, const u8 *key,
852 const u8 hfunc)
853{
854 struct nfp_net *nn = netdev_priv(netdev);
855 int i;
856
857 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
858 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc))
859 return -EOPNOTSUPP;
860
861 if (!key && !indir)
862 return 0;
863
864 if (key) {
865 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn));
866 nfp_net_rss_write_key(nn);
867 }
868 if (indir) {
869 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
870 nn->rss_itbl[i] = indir[i];
871
872 nfp_net_rss_write_itbl(nn);
873 }
874
875 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
876}
877
878
879
880static int nfp_net_get_regs_len(struct net_device *netdev)
881{
882 return NFP_NET_CFG_BAR_SZ;
883}
884
885static void nfp_net_get_regs(struct net_device *netdev,
886 struct ethtool_regs *regs, void *p)
887{
888 struct nfp_net *nn = netdev_priv(netdev);
889 u32 *regs_buf = p;
890 int i;
891
892 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION);
893
894 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++)
895 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32)));
896}
897
898static int nfp_net_get_coalesce(struct net_device *netdev,
899 struct ethtool_coalesce *ec)
900{
901 struct nfp_net *nn = netdev_priv(netdev);
902
903 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
904 return -EINVAL;
905
906 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs;
907 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames;
908 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs;
909 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames;
910
911 return 0;
912}
913
914
915
916static int
917nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer)
918{
919 struct nfp_resource *res;
920 int ret;
921
922 if (!app)
923 return -EOPNOTSUPP;
924
925 dump->version = 1;
926 dump->flag = NFP_DUMP_NSP_DIAG;
927
928 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG);
929 if (IS_ERR(res))
930 return PTR_ERR(res);
931
932 if (buffer) {
933 if (dump->len != nfp_resource_size(res)) {
934 ret = -EINVAL;
935 goto exit_release;
936 }
937
938 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res),
939 nfp_resource_address(res),
940 buffer, dump->len);
941 if (ret != dump->len)
942 ret = ret < 0 ? ret : -EIO;
943 else
944 ret = 0;
945 } else {
946 dump->len = nfp_resource_size(res);
947 ret = 0;
948 }
949exit_release:
950 nfp_resource_release(res);
951
952 return ret;
953}
954
955static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)
956{
957 struct nfp_app *app = nfp_app_from_netdev(netdev);
958
959 if (!app)
960 return -EOPNOTSUPP;
961
962 if (val->flag != NFP_DUMP_NSP_DIAG)
963 return -EINVAL;
964
965 return 0;
966}
967
968static int
969nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
970{
971 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, NULL);
972}
973
974static int
975nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
976 void *buffer)
977{
978 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, buffer);
979}
980
981static int nfp_net_set_coalesce(struct net_device *netdev,
982 struct ethtool_coalesce *ec)
983{
984 struct nfp_net *nn = netdev_priv(netdev);
985 unsigned int factor;
986
987 if (ec->rx_coalesce_usecs_irq ||
988 ec->rx_max_coalesced_frames_irq ||
989 ec->tx_coalesce_usecs_irq ||
990 ec->tx_max_coalesced_frames_irq ||
991 ec->stats_block_coalesce_usecs ||
992 ec->use_adaptive_rx_coalesce ||
993 ec->use_adaptive_tx_coalesce ||
994 ec->pkt_rate_low ||
995 ec->rx_coalesce_usecs_low ||
996 ec->rx_max_coalesced_frames_low ||
997 ec->tx_coalesce_usecs_low ||
998 ec->tx_max_coalesced_frames_low ||
999 ec->pkt_rate_high ||
1000 ec->rx_coalesce_usecs_high ||
1001 ec->rx_max_coalesced_frames_high ||
1002 ec->tx_coalesce_usecs_high ||
1003 ec->tx_max_coalesced_frames_high ||
1004 ec->rate_sample_interval)
1005 return -EOPNOTSUPP;
1006
1007
1008
1009
1010
1011 factor = nn->me_freq_mhz / 16;
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
1027 return -EINVAL;
1028
1029
1030 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames)
1031 return -EINVAL;
1032
1033 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames)
1034 return -EINVAL;
1035
1036 if (ec->rx_coalesce_usecs * factor >= ((1 << 16) - 1))
1037 return -EINVAL;
1038
1039 if (ec->tx_coalesce_usecs * factor >= ((1 << 16) - 1))
1040 return -EINVAL;
1041
1042 if (ec->rx_max_coalesced_frames >= ((1 << 16) - 1))
1043 return -EINVAL;
1044
1045 if (ec->tx_max_coalesced_frames >= ((1 << 16) - 1))
1046 return -EINVAL;
1047
1048
1049 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs;
1050 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames;
1051 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs;
1052 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames;
1053
1054
1055 nfp_net_coalesce_write_cfg(nn);
1056 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD);
1057}
1058
1059static void nfp_net_get_channels(struct net_device *netdev,
1060 struct ethtool_channels *channel)
1061{
1062 struct nfp_net *nn = netdev_priv(netdev);
1063 unsigned int num_tx_rings;
1064
1065 num_tx_rings = nn->dp.num_tx_rings;
1066 if (nn->dp.xdp_prog)
1067 num_tx_rings -= nn->dp.num_rx_rings;
1068
1069 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs);
1070 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs);
1071 channel->max_combined = min(channel->max_rx, channel->max_tx);
1072 channel->max_other = NFP_NET_NON_Q_VECTORS;
1073 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings);
1074 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count;
1075 channel->tx_count = num_tx_rings - channel->combined_count;
1076 channel->other_count = NFP_NET_NON_Q_VECTORS;
1077}
1078
1079static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,
1080 unsigned int total_tx)
1081{
1082 struct nfp_net_dp *dp;
1083
1084 dp = nfp_net_clone_dp(nn);
1085 if (!dp)
1086 return -ENOMEM;
1087
1088 dp->num_rx_rings = total_rx;
1089 dp->num_tx_rings = total_tx;
1090
1091 if (dp->xdp_prog)
1092 dp->num_tx_rings += total_rx;
1093
1094 return nfp_net_ring_reconfig(nn, dp, NULL);
1095}
1096
1097static int nfp_net_set_channels(struct net_device *netdev,
1098 struct ethtool_channels *channel)
1099{
1100 struct nfp_net *nn = netdev_priv(netdev);
1101 unsigned int total_rx, total_tx;
1102
1103
1104 if (!channel->combined_count ||
1105 channel->other_count != NFP_NET_NON_Q_VECTORS ||
1106 (channel->rx_count && channel->tx_count))
1107 return -EINVAL;
1108
1109 total_rx = channel->combined_count + channel->rx_count;
1110 total_tx = channel->combined_count + channel->tx_count;
1111
1112 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) ||
1113 total_tx > min(nn->max_tx_rings, nn->max_r_vecs))
1114 return -EINVAL;
1115
1116 return nfp_net_set_num_rings(nn, total_rx, total_tx);
1117}
1118
1119static const struct ethtool_ops nfp_net_ethtool_ops = {
1120 .get_drvinfo = nfp_net_get_drvinfo,
1121 .get_link = ethtool_op_get_link,
1122 .get_ringparam = nfp_net_get_ringparam,
1123 .set_ringparam = nfp_net_set_ringparam,
1124 .get_strings = nfp_net_get_strings,
1125 .get_ethtool_stats = nfp_net_get_stats,
1126 .get_sset_count = nfp_net_get_sset_count,
1127 .get_rxnfc = nfp_net_get_rxnfc,
1128 .set_rxnfc = nfp_net_set_rxnfc,
1129 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size,
1130 .get_rxfh_key_size = nfp_net_get_rxfh_key_size,
1131 .get_rxfh = nfp_net_get_rxfh,
1132 .set_rxfh = nfp_net_set_rxfh,
1133 .get_regs_len = nfp_net_get_regs_len,
1134 .get_regs = nfp_net_get_regs,
1135 .set_dump = nfp_app_set_dump,
1136 .get_dump_flag = nfp_app_get_dump_flag,
1137 .get_dump_data = nfp_app_get_dump_data,
1138 .get_coalesce = nfp_net_get_coalesce,
1139 .set_coalesce = nfp_net_set_coalesce,
1140 .get_channels = nfp_net_get_channels,
1141 .set_channels = nfp_net_set_channels,
1142 .get_link_ksettings = nfp_net_get_link_ksettings,
1143 .set_link_ksettings = nfp_net_set_link_ksettings,
1144};
1145
1146const struct ethtool_ops nfp_port_ethtool_ops = {
1147 .get_drvinfo = nfp_app_get_drvinfo,
1148 .get_link = ethtool_op_get_link,
1149 .get_strings = nfp_port_get_strings,
1150 .get_ethtool_stats = nfp_port_get_stats,
1151 .get_sset_count = nfp_port_get_sset_count,
1152 .set_dump = nfp_app_set_dump,
1153 .get_dump_flag = nfp_app_get_dump_flag,
1154 .get_dump_data = nfp_app_get_dump_data,
1155};
1156
1157void nfp_net_set_ethtool_ops(struct net_device *netdev)
1158{
1159 netdev->ethtool_ops = &nfp_net_ethtool_ops;
1160}
1161