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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_nsp.h"
25#include "nfp_app.h"
26#include "nfp_main.h"
27#include "nfp_net_ctrl.h"
28#include "nfp_net.h"
29#include "nfp_port.h"
30
31struct nfp_et_stat {
32 char name[ETH_GSTRING_LEN];
33 int off;
34};
35
36static const struct nfp_et_stat nfp_net_et_stats[] = {
37
38 { "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS },
39 { "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS },
40 { "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS },
41 { "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS },
42 { "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS },
43 { "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS },
44 { "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES },
45 { "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES },
46 { "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES },
47
48 { "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS },
49 { "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS },
50 { "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS },
51 { "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS },
52 { "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS },
53 { "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS },
54 { "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES },
55 { "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES },
56 { "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES },
57
58 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
59 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
60
61
62
63 { "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES },
64 { "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES },
65 { "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES },
66 { "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES },
67 { "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES },
68 { "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES },
69};
70
71static const struct nfp_et_stat nfp_mac_et_stats[] = {
72 { "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, },
73 { "rx_frame_too_long_errors",
74 NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, },
75 { "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, },
76 { "rx_vlan_received_ok", NFP_MAC_STATS_RX_VLAN_RECEIVED_OK, },
77 { "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, },
78 { "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, },
79 { "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, },
80 { "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, },
81 { "rx_pause_mac_ctrl_frames",
82 NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, },
83 { "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, },
84 { "rx_frame_check_sequence_errors",
85 NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, },
86 { "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, },
87 { "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, },
88 { "rx_pkts", NFP_MAC_STATS_RX_PKTS, },
89 { "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, },
90 { "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, },
91 { "rx_pkts_65_to_127_octets",
92 NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, },
93 { "rx_pkts_128_to_255_octets",
94 NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, },
95 { "rx_pkts_256_to_511_octets",
96 NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, },
97 { "rx_pkts_512_to_1023_octets",
98 NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, },
99 { "rx_pkts_1024_to_1518_octets",
100 NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, },
101 { "rx_pkts_1519_to_max_octets",
102 NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, },
103 { "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, },
104 { "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, },
105 { "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, },
106 { "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, },
107 { "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, },
108 { "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, },
109 { "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, },
110 { "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, },
111 { "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, },
112 { "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, },
113 { "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, },
114 { "rx_mac_ctrl_frames_received",
115 NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, },
116 { "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, },
117 { "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, },
118 { "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, },
119 { "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, },
120 { "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, },
121 { "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, },
122 { "tx_pause_mac_ctrl_frames",
123 NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, },
124 { "tx_frames_transmitted_ok",
125 NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, },
126 { "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, },
127 { "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, },
128 { "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, },
129 { "tx_pkts_65_to_127_octets",
130 NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, },
131 { "tx_pkts_128_to_255_octets",
132 NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, },
133 { "tx_pkts_256_to_511_octets",
134 NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, },
135 { "tx_pkts_512_to_1023_octets",
136 NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, },
137 { "tx_pkts_1024_to_1518_octets",
138 NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, },
139 { "tx_pkts_1519_to_max_octets",
140 NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, },
141 { "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, },
142 { "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, },
143 { "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, },
144 { "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, },
145 { "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, },
146 { "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, },
147 { "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, },
148 { "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, },
149};
150
151static const char nfp_tlv_stat_names[][ETH_GSTRING_LEN] = {
152 [1] = "dev_rx_discards",
153 [2] = "dev_rx_errors",
154 [3] = "dev_rx_bytes",
155 [4] = "dev_rx_uc_bytes",
156 [5] = "dev_rx_mc_bytes",
157 [6] = "dev_rx_bc_bytes",
158 [7] = "dev_rx_pkts",
159 [8] = "dev_rx_mc_pkts",
160 [9] = "dev_rx_bc_pkts",
161
162 [10] = "dev_tx_discards",
163 [11] = "dev_tx_errors",
164 [12] = "dev_tx_bytes",
165 [13] = "dev_tx_uc_bytes",
166 [14] = "dev_tx_mc_bytes",
167 [15] = "dev_tx_bc_bytes",
168 [16] = "dev_tx_pkts",
169 [17] = "dev_tx_mc_pkts",
170 [18] = "dev_tx_bc_pkts",
171};
172
173#define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)
174#define NN_ET_SWITCH_STATS_LEN 9
175#define NN_RVEC_GATHER_STATS 13
176#define NN_RVEC_PER_Q_STATS 3
177#define NN_CTRL_PATH_STATS 4
178
179#define SFP_SFF_REV_COMPLIANCE 1
180
181static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
182{
183 struct nfp_nsp *nsp;
184
185 if (!app)
186 return;
187
188 nsp = nfp_nsp_open(app->cpp);
189 if (IS_ERR(nsp))
190 return;
191
192 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",
193 nfp_nsp_get_abi_ver_major(nsp),
194 nfp_nsp_get_abi_ver_minor(nsp));
195
196 nfp_nsp_close(nsp);
197}
198
199static void
200nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,
201 const char *vnic_version, struct ethtool_drvinfo *drvinfo)
202{
203 char nsp_version[ETHTOOL_FWVERS_LEN] = {};
204
205 strlcpy(drvinfo->driver, pdev->driver->name, sizeof(drvinfo->driver));
206 nfp_net_get_nspinfo(app, nsp_version);
207 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
208 "%s %s %s %s", vnic_version, nsp_version,
209 nfp_app_mip_name(app), nfp_app_name(app));
210}
211
212static void
213nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
214{
215 char vnic_version[ETHTOOL_FWVERS_LEN] = {};
216 struct nfp_net *nn = netdev_priv(netdev);
217
218 snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d",
219 nn->fw_ver.resv, nn->fw_ver.class,
220 nn->fw_ver.major, nn->fw_ver.minor);
221 strlcpy(drvinfo->bus_info, pci_name(nn->pdev),
222 sizeof(drvinfo->bus_info));
223
224 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
225}
226
227static void
228nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
229{
230 struct nfp_app *app = nfp_app_from_netdev(netdev);
231
232 strlcpy(drvinfo->bus_info, pci_name(app->pdev),
233 sizeof(drvinfo->bus_info));
234 nfp_get_drvinfo(app, app->pdev, "*", drvinfo);
235}
236
237static void
238nfp_net_set_fec_link_mode(struct nfp_eth_table_port *eth_port,
239 struct ethtool_link_ksettings *c)
240{
241 unsigned int modes;
242
243 ethtool_link_ksettings_add_link_mode(c, supported, FEC_NONE);
244 if (!nfp_eth_can_support_fec(eth_port)) {
245 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_NONE);
246 return;
247 }
248
249 modes = nfp_eth_supported_fec_modes(eth_port);
250 if (modes & NFP_FEC_BASER) {
251 ethtool_link_ksettings_add_link_mode(c, supported, FEC_BASER);
252 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_BASER);
253 }
254
255 if (modes & NFP_FEC_REED_SOLOMON) {
256 ethtool_link_ksettings_add_link_mode(c, supported, FEC_RS);
257 ethtool_link_ksettings_add_link_mode(c, advertising, FEC_RS);
258 }
259}
260
261
262
263
264
265
266
267
268static int
269nfp_net_get_link_ksettings(struct net_device *netdev,
270 struct ethtool_link_ksettings *cmd)
271{
272 static const u32 ls_to_ethtool[] = {
273 [NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = 0,
274 [NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = SPEED_UNKNOWN,
275 [NFP_NET_CFG_STS_LINK_RATE_1G] = SPEED_1000,
276 [NFP_NET_CFG_STS_LINK_RATE_10G] = SPEED_10000,
277 [NFP_NET_CFG_STS_LINK_RATE_25G] = SPEED_25000,
278 [NFP_NET_CFG_STS_LINK_RATE_40G] = SPEED_40000,
279 [NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000,
280 [NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000,
281 };
282 struct nfp_eth_table_port *eth_port;
283 struct nfp_port *port;
284 struct nfp_net *nn;
285 u32 sts, ls;
286
287
288 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
289 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
290 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
291 cmd->base.port = PORT_OTHER;
292 cmd->base.speed = SPEED_UNKNOWN;
293 cmd->base.duplex = DUPLEX_UNKNOWN;
294
295 port = nfp_port_from_netdev(netdev);
296 eth_port = nfp_port_get_eth_port(port);
297 if (eth_port) {
298 cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ?
299 AUTONEG_ENABLE : AUTONEG_DISABLE;
300 nfp_net_set_fec_link_mode(eth_port, cmd);
301 }
302
303 if (!netif_carrier_ok(netdev))
304 return 0;
305
306
307 if (eth_port) {
308 cmd->base.port = eth_port->port_type;
309 cmd->base.speed = eth_port->speed;
310 cmd->base.duplex = DUPLEX_FULL;
311 return 0;
312 }
313
314 if (!nfp_netdev_is_nfp_net(netdev))
315 return -EOPNOTSUPP;
316 nn = netdev_priv(netdev);
317
318 sts = nn_readl(nn, NFP_NET_CFG_STS);
319
320 ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts);
321 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED)
322 return -EOPNOTSUPP;
323
324 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNKNOWN ||
325 ls >= ARRAY_SIZE(ls_to_ethtool))
326 return 0;
327
328 cmd->base.speed = ls_to_ethtool[ls];
329 cmd->base.duplex = DUPLEX_FULL;
330
331 return 0;
332}
333
334static int
335nfp_net_set_link_ksettings(struct net_device *netdev,
336 const struct ethtool_link_ksettings *cmd)
337{
338 struct nfp_eth_table_port *eth_port;
339 struct nfp_port *port;
340 struct nfp_nsp *nsp;
341 int err;
342
343 port = nfp_port_from_netdev(netdev);
344 eth_port = __nfp_port_get_eth_port(port);
345 if (!eth_port)
346 return -EOPNOTSUPP;
347
348 if (netif_running(netdev)) {
349 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until driver reload.\n");
350 return -EBUSY;
351 }
352
353 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
354 if (IS_ERR(nsp))
355 return PTR_ERR(nsp);
356
357 err = __nfp_eth_set_aneg(nsp, cmd->base.autoneg == AUTONEG_ENABLE ?
358 NFP_ANEG_AUTO : NFP_ANEG_DISABLED);
359 if (err)
360 goto err_bad_set;
361 if (cmd->base.speed != SPEED_UNKNOWN) {
362 u32 speed = cmd->base.speed / eth_port->lanes;
363
364 err = __nfp_eth_set_speed(nsp, speed);
365 if (err)
366 goto err_bad_set;
367 }
368
369 err = nfp_eth_config_commit_end(nsp);
370 if (err > 0)
371 return 0;
372
373 nfp_net_refresh_port_table(port);
374
375 return err;
376
377err_bad_set:
378 nfp_eth_config_cleanup_end(nsp);
379 return err;
380}
381
382static void nfp_net_get_ringparam(struct net_device *netdev,
383 struct ethtool_ringparam *ring)
384{
385 struct nfp_net *nn = netdev_priv(netdev);
386
387 ring->rx_max_pending = NFP_NET_MAX_RX_DESCS;
388 ring->tx_max_pending = NFP_NET_MAX_TX_DESCS;
389 ring->rx_pending = nn->dp.rxd_cnt;
390 ring->tx_pending = nn->dp.txd_cnt;
391}
392
393static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt)
394{
395 struct nfp_net_dp *dp;
396
397 dp = nfp_net_clone_dp(nn);
398 if (!dp)
399 return -ENOMEM;
400
401 dp->rxd_cnt = rxd_cnt;
402 dp->txd_cnt = txd_cnt;
403
404 return nfp_net_ring_reconfig(nn, dp, NULL);
405}
406
407static int nfp_net_set_ringparam(struct net_device *netdev,
408 struct ethtool_ringparam *ring)
409{
410 struct nfp_net *nn = netdev_priv(netdev);
411 u32 rxd_cnt, txd_cnt;
412
413
414 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
415 return -EINVAL;
416
417
418 rxd_cnt = roundup_pow_of_two(ring->rx_pending);
419 txd_cnt = roundup_pow_of_two(ring->tx_pending);
420
421 if (rxd_cnt < NFP_NET_MIN_RX_DESCS || rxd_cnt > NFP_NET_MAX_RX_DESCS ||
422 txd_cnt < NFP_NET_MIN_TX_DESCS || txd_cnt > NFP_NET_MAX_TX_DESCS)
423 return -EINVAL;
424
425 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt)
426 return 0;
427
428 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n",
429 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt);
430
431 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt);
432}
433
434static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)
435{
436 struct nfp_net *nn = netdev_priv(netdev);
437
438 return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS +
439 NN_CTRL_PATH_STATS;
440}
441
442static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data)
443{
444 struct nfp_net *nn = netdev_priv(netdev);
445 int i;
446
447 for (i = 0; i < nn->max_r_vecs; i++) {
448 ethtool_sprintf(&data, "rvec_%u_rx_pkts", i);
449 ethtool_sprintf(&data, "rvec_%u_tx_pkts", i);
450 ethtool_sprintf(&data, "rvec_%u_tx_busy", i);
451 }
452
453 ethtool_sprintf(&data, "hw_rx_csum_ok");
454 ethtool_sprintf(&data, "hw_rx_csum_inner_ok");
455 ethtool_sprintf(&data, "hw_rx_csum_complete");
456 ethtool_sprintf(&data, "hw_rx_csum_err");
457 ethtool_sprintf(&data, "rx_replace_buf_alloc_fail");
458 ethtool_sprintf(&data, "rx_tls_decrypted_packets");
459 ethtool_sprintf(&data, "hw_tx_csum");
460 ethtool_sprintf(&data, "hw_tx_inner_csum");
461 ethtool_sprintf(&data, "tx_gather");
462 ethtool_sprintf(&data, "tx_lso");
463 ethtool_sprintf(&data, "tx_tls_encrypted_packets");
464 ethtool_sprintf(&data, "tx_tls_ooo");
465 ethtool_sprintf(&data, "tx_tls_drop_no_sync_data");
466
467 ethtool_sprintf(&data, "hw_tls_no_space");
468 ethtool_sprintf(&data, "rx_tls_resync_req_ok");
469 ethtool_sprintf(&data, "rx_tls_resync_req_ign");
470 ethtool_sprintf(&data, "rx_tls_resync_sent");
471
472 return data;
473}
474
475static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
476{
477 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {};
478 struct nfp_net *nn = netdev_priv(netdev);
479 u64 tmp[NN_RVEC_GATHER_STATS];
480 unsigned int i, j;
481
482 for (i = 0; i < nn->max_r_vecs; i++) {
483 unsigned int start;
484
485 do {
486 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync);
487 data[0] = nn->r_vecs[i].rx_pkts;
488 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok;
489 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok;
490 tmp[2] = nn->r_vecs[i].hw_csum_rx_complete;
491 tmp[3] = nn->r_vecs[i].hw_csum_rx_error;
492 tmp[4] = nn->r_vecs[i].rx_replace_buf_alloc_fail;
493 tmp[5] = nn->r_vecs[i].hw_tls_rx;
494 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start));
495
496 do {
497 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync);
498 data[1] = nn->r_vecs[i].tx_pkts;
499 data[2] = nn->r_vecs[i].tx_busy;
500 tmp[6] = nn->r_vecs[i].hw_csum_tx;
501 tmp[7] = nn->r_vecs[i].hw_csum_tx_inner;
502 tmp[8] = nn->r_vecs[i].tx_gather;
503 tmp[9] = nn->r_vecs[i].tx_lso;
504 tmp[10] = nn->r_vecs[i].hw_tls_tx;
505 tmp[11] = nn->r_vecs[i].tls_tx_fallback;
506 tmp[12] = nn->r_vecs[i].tls_tx_no_fallback;
507 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));
508
509 data += NN_RVEC_PER_Q_STATS;
510
511 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
512 gathered_stats[j] += tmp[j];
513 }
514
515 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
516 *data++ = gathered_stats[j];
517
518 *data++ = atomic_read(&nn->ktls_no_space);
519 *data++ = atomic_read(&nn->ktls_rx_resync_req);
520 *data++ = atomic_read(&nn->ktls_rx_resync_ign);
521 *data++ = atomic_read(&nn->ktls_rx_resync_sent);
522
523 return data;
524}
525
526static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs)
527{
528 return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4;
529}
530
531static u8 *
532nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr)
533{
534 int swap_off, i;
535
536 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2);
537
538
539
540
541 swap_off = repr * NN_ET_SWITCH_STATS_LEN;
542
543 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++)
544 ethtool_sprintf(&data, nfp_net_et_stats[i + swap_off].name);
545
546 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++)
547 ethtool_sprintf(&data, nfp_net_et_stats[i - swap_off].name);
548
549 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++)
550 ethtool_sprintf(&data, nfp_net_et_stats[i].name);
551
552 for (i = 0; i < num_vecs; i++) {
553 ethtool_sprintf(&data, "rxq_%u_pkts", i);
554 ethtool_sprintf(&data, "rxq_%u_bytes", i);
555 ethtool_sprintf(&data, "txq_%u_pkts", i);
556 ethtool_sprintf(&data, "txq_%u_bytes", i);
557 }
558
559 return data;
560}
561
562static u64 *
563nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs)
564{
565 unsigned int i;
566
567 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++)
568 *data++ = readq(mem + nfp_net_et_stats[i].off);
569
570 for (i = 0; i < num_vecs; i++) {
571 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
572 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);
573 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
574 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
575 }
576
577 return data;
578}
579
580static unsigned int nfp_vnic_get_tlv_stats_count(struct nfp_net *nn)
581{
582 return nn->tlv_caps.vnic_stats_cnt + nn->max_r_vecs * 4;
583}
584
585static u8 *nfp_vnic_get_tlv_stats_strings(struct nfp_net *nn, u8 *data)
586{
587 unsigned int i, id;
588 u8 __iomem *mem;
589 u64 id_word = 0;
590
591 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off;
592 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++) {
593 if (!(i % 4))
594 id_word = readq(mem + i * 2);
595
596 id = (u16)id_word;
597 id_word >>= 16;
598
599 if (id < ARRAY_SIZE(nfp_tlv_stat_names) &&
600 nfp_tlv_stat_names[id][0]) {
601 memcpy(data, nfp_tlv_stat_names[id], ETH_GSTRING_LEN);
602 data += ETH_GSTRING_LEN;
603 } else {
604 ethtool_sprintf(&data, "dev_unknown_stat%u", id);
605 }
606 }
607
608 for (i = 0; i < nn->max_r_vecs; i++) {
609 ethtool_sprintf(&data, "rxq_%u_pkts", i);
610 ethtool_sprintf(&data, "rxq_%u_bytes", i);
611 ethtool_sprintf(&data, "txq_%u_pkts", i);
612 ethtool_sprintf(&data, "txq_%u_bytes", i);
613 }
614
615 return data;
616}
617
618static u64 *nfp_vnic_get_tlv_stats(struct nfp_net *nn, u64 *data)
619{
620 u8 __iomem *mem;
621 unsigned int i;
622
623 mem = nn->dp.ctrl_bar + nn->tlv_caps.vnic_stats_off;
624 mem += roundup(2 * nn->tlv_caps.vnic_stats_cnt, 8);
625 for (i = 0; i < nn->tlv_caps.vnic_stats_cnt; i++)
626 *data++ = readq(mem + i * 8);
627
628 mem = nn->dp.ctrl_bar;
629 for (i = 0; i < nn->max_r_vecs; i++) {
630 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
631 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);
632 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
633 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
634 }
635
636 return data;
637}
638
639static unsigned int nfp_mac_get_stats_count(struct net_device *netdev)
640{
641 struct nfp_port *port;
642
643 port = nfp_port_from_netdev(netdev);
644 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
645 return 0;
646
647 return ARRAY_SIZE(nfp_mac_et_stats);
648}
649
650static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data)
651{
652 struct nfp_port *port;
653 unsigned int i;
654
655 port = nfp_port_from_netdev(netdev);
656 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
657 return data;
658
659 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
660 ethtool_sprintf(&data, "mac.%s", nfp_mac_et_stats[i].name);
661
662 return data;
663}
664
665static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data)
666{
667 struct nfp_port *port;
668 unsigned int i;
669
670 port = nfp_port_from_netdev(netdev);
671 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
672 return data;
673
674 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
675 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off);
676
677 return data;
678}
679
680static void nfp_net_get_strings(struct net_device *netdev,
681 u32 stringset, u8 *data)
682{
683 struct nfp_net *nn = netdev_priv(netdev);
684
685 switch (stringset) {
686 case ETH_SS_STATS:
687 data = nfp_vnic_get_sw_stats_strings(netdev, data);
688 if (!nn->tlv_caps.vnic_stats_off)
689 data = nfp_vnic_get_hw_stats_strings(data,
690 nn->max_r_vecs,
691 false);
692 else
693 data = nfp_vnic_get_tlv_stats_strings(nn, data);
694 data = nfp_mac_get_stats_strings(netdev, data);
695 data = nfp_app_port_get_stats_strings(nn->port, data);
696 break;
697 }
698}
699
700static void
701nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
702 u64 *data)
703{
704 struct nfp_net *nn = netdev_priv(netdev);
705
706 data = nfp_vnic_get_sw_stats(netdev, data);
707 if (!nn->tlv_caps.vnic_stats_off)
708 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,
709 nn->max_r_vecs);
710 else
711 data = nfp_vnic_get_tlv_stats(nn, data);
712 data = nfp_mac_get_stats(netdev, data);
713 data = nfp_app_port_get_stats(nn->port, data);
714}
715
716static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
717{
718 struct nfp_net *nn = netdev_priv(netdev);
719 unsigned int cnt;
720
721 switch (sset) {
722 case ETH_SS_STATS:
723 cnt = nfp_vnic_get_sw_stats_count(netdev);
724 if (!nn->tlv_caps.vnic_stats_off)
725 cnt += nfp_vnic_get_hw_stats_count(nn->max_r_vecs);
726 else
727 cnt += nfp_vnic_get_tlv_stats_count(nn);
728 cnt += nfp_mac_get_stats_count(netdev);
729 cnt += nfp_app_port_get_stats_count(nn->port);
730 return cnt;
731 default:
732 return -EOPNOTSUPP;
733 }
734}
735
736static void nfp_port_get_strings(struct net_device *netdev,
737 u32 stringset, u8 *data)
738{
739 struct nfp_port *port = nfp_port_from_netdev(netdev);
740
741 switch (stringset) {
742 case ETH_SS_STATS:
743 if (nfp_port_is_vnic(port))
744 data = nfp_vnic_get_hw_stats_strings(data, 0, true);
745 else
746 data = nfp_mac_get_stats_strings(netdev, data);
747 data = nfp_app_port_get_stats_strings(port, data);
748 break;
749 }
750}
751
752static void
753nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
754 u64 *data)
755{
756 struct nfp_port *port = nfp_port_from_netdev(netdev);
757
758 if (nfp_port_is_vnic(port))
759 data = nfp_vnic_get_hw_stats(data, port->vnic, 0);
760 else
761 data = nfp_mac_get_stats(netdev, data);
762 data = nfp_app_port_get_stats(port, data);
763}
764
765static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
766{
767 struct nfp_port *port = nfp_port_from_netdev(netdev);
768 unsigned int count;
769
770 switch (sset) {
771 case ETH_SS_STATS:
772 if (nfp_port_is_vnic(port))
773 count = nfp_vnic_get_hw_stats_count(0);
774 else
775 count = nfp_mac_get_stats_count(netdev);
776 count += nfp_app_port_get_stats_count(port);
777 return count;
778 default:
779 return -EOPNOTSUPP;
780 }
781}
782
783static int nfp_port_fec_ethtool_to_nsp(u32 fec)
784{
785 switch (fec) {
786 case ETHTOOL_FEC_AUTO:
787 return NFP_FEC_AUTO_BIT;
788 case ETHTOOL_FEC_OFF:
789 return NFP_FEC_DISABLED_BIT;
790 case ETHTOOL_FEC_RS:
791 return NFP_FEC_REED_SOLOMON_BIT;
792 case ETHTOOL_FEC_BASER:
793 return NFP_FEC_BASER_BIT;
794 default:
795
796 return -EOPNOTSUPP;
797 }
798}
799
800static u32 nfp_port_fec_nsp_to_ethtool(u32 fec)
801{
802 u32 result = 0;
803
804 if (fec & NFP_FEC_AUTO)
805 result |= ETHTOOL_FEC_AUTO;
806 if (fec & NFP_FEC_BASER)
807 result |= ETHTOOL_FEC_BASER;
808 if (fec & NFP_FEC_REED_SOLOMON)
809 result |= ETHTOOL_FEC_RS;
810 if (fec & NFP_FEC_DISABLED)
811 result |= ETHTOOL_FEC_OFF;
812
813 return result ?: ETHTOOL_FEC_NONE;
814}
815
816static int
817nfp_port_get_fecparam(struct net_device *netdev,
818 struct ethtool_fecparam *param)
819{
820 struct nfp_eth_table_port *eth_port;
821 struct nfp_port *port;
822
823 param->active_fec = ETHTOOL_FEC_NONE;
824 param->fec = ETHTOOL_FEC_NONE;
825
826 port = nfp_port_from_netdev(netdev);
827 eth_port = nfp_port_get_eth_port(port);
828 if (!eth_port)
829 return -EOPNOTSUPP;
830
831 if (!nfp_eth_can_support_fec(eth_port))
832 return 0;
833
834 param->fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec_modes_supported);
835 param->active_fec = nfp_port_fec_nsp_to_ethtool(eth_port->fec);
836
837 return 0;
838}
839
840static int
841nfp_port_set_fecparam(struct net_device *netdev,
842 struct ethtool_fecparam *param)
843{
844 struct nfp_eth_table_port *eth_port;
845 struct nfp_port *port;
846 int err, fec;
847
848 port = nfp_port_from_netdev(netdev);
849 eth_port = nfp_port_get_eth_port(port);
850 if (!eth_port)
851 return -EOPNOTSUPP;
852
853 if (!nfp_eth_can_support_fec(eth_port))
854 return -EOPNOTSUPP;
855
856 fec = nfp_port_fec_ethtool_to_nsp(param->fec);
857 if (fec < 0)
858 return fec;
859
860 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec);
861 if (!err)
862
863 nfp_net_refresh_port_table(port);
864
865 return err < 0 ? err : 0;
866}
867
868
869
870static u32 ethtool_flow_to_nfp_flag(u32 flow_type)
871{
872 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = {
873 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP,
874 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP,
875 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP,
876 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP,
877 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4,
878 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6,
879 };
880
881 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp))
882 return 0;
883
884 return xlate_ethtool_to_nfp[flow_type];
885}
886
887static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,
888 struct ethtool_rxnfc *cmd)
889{
890 u32 nfp_rss_flag;
891
892 cmd->data = 0;
893
894 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
895 return -EOPNOTSUPP;
896
897 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);
898 if (!nfp_rss_flag)
899 return -EINVAL;
900
901 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
902 if (nn->rss_cfg & nfp_rss_flag)
903 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
904
905 return 0;
906}
907
908static int nfp_net_get_rxnfc(struct net_device *netdev,
909 struct ethtool_rxnfc *cmd, u32 *rule_locs)
910{
911 struct nfp_net *nn = netdev_priv(netdev);
912
913 switch (cmd->cmd) {
914 case ETHTOOL_GRXRINGS:
915 cmd->data = nn->dp.num_rx_rings;
916 return 0;
917 case ETHTOOL_GRXFH:
918 return nfp_net_get_rss_hash_opts(nn, cmd);
919 default:
920 return -EOPNOTSUPP;
921 }
922}
923
924static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,
925 struct ethtool_rxnfc *nfc)
926{
927 u32 new_rss_cfg = nn->rss_cfg;
928 u32 nfp_rss_flag;
929 int err;
930
931 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
932 return -EOPNOTSUPP;
933
934
935 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
936 RXH_L4_B_0_1 | RXH_L4_B_2_3))
937 return -EINVAL;
938
939
940 if (!(nfc->data & RXH_IP_SRC) ||
941 !(nfc->data & RXH_IP_DST))
942 return -EINVAL;
943
944 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type);
945 if (!nfp_rss_flag)
946 return -EINVAL;
947
948 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
949 case 0:
950 new_rss_cfg &= ~nfp_rss_flag;
951 break;
952 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
953 new_rss_cfg |= nfp_rss_flag;
954 break;
955 default:
956 return -EINVAL;
957 }
958
959 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc);
960 new_rss_cfg |= NFP_NET_CFG_RSS_MASK;
961
962 if (new_rss_cfg == nn->rss_cfg)
963 return 0;
964
965 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL);
966 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
967 if (err)
968 return err;
969
970 nn->rss_cfg = new_rss_cfg;
971
972 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg);
973 return 0;
974}
975
976static int nfp_net_set_rxnfc(struct net_device *netdev,
977 struct ethtool_rxnfc *cmd)
978{
979 struct nfp_net *nn = netdev_priv(netdev);
980
981 switch (cmd->cmd) {
982 case ETHTOOL_SRXFH:
983 return nfp_net_set_rss_hash_opt(nn, cmd);
984 default:
985 return -EOPNOTSUPP;
986 }
987}
988
989static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)
990{
991 struct nfp_net *nn = netdev_priv(netdev);
992
993 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
994 return 0;
995
996 return ARRAY_SIZE(nn->rss_itbl);
997}
998
999static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)
1000{
1001 struct nfp_net *nn = netdev_priv(netdev);
1002
1003 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
1004 return -EOPNOTSUPP;
1005
1006 return nfp_net_rss_key_sz(nn);
1007}
1008
1009static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1010 u8 *hfunc)
1011{
1012 struct nfp_net *nn = netdev_priv(netdev);
1013 int i;
1014
1015 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
1016 return -EOPNOTSUPP;
1017
1018 if (indir)
1019 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
1020 indir[i] = nn->rss_itbl[i];
1021 if (key)
1022 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn));
1023 if (hfunc) {
1024 *hfunc = nn->rss_hfunc;
1025 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
1026 *hfunc = ETH_RSS_HASH_UNKNOWN;
1027 }
1028
1029 return 0;
1030}
1031
1032static int nfp_net_set_rxfh(struct net_device *netdev,
1033 const u32 *indir, const u8 *key,
1034 const u8 hfunc)
1035{
1036 struct nfp_net *nn = netdev_priv(netdev);
1037 int i;
1038
1039 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
1040 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc))
1041 return -EOPNOTSUPP;
1042
1043 if (!key && !indir)
1044 return 0;
1045
1046 if (key) {
1047 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn));
1048 nfp_net_rss_write_key(nn);
1049 }
1050 if (indir) {
1051 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
1052 nn->rss_itbl[i] = indir[i];
1053
1054 nfp_net_rss_write_itbl(nn);
1055 }
1056
1057 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
1058}
1059
1060
1061
1062static int nfp_net_get_regs_len(struct net_device *netdev)
1063{
1064 return NFP_NET_CFG_BAR_SZ;
1065}
1066
1067static void nfp_net_get_regs(struct net_device *netdev,
1068 struct ethtool_regs *regs, void *p)
1069{
1070 struct nfp_net *nn = netdev_priv(netdev);
1071 u32 *regs_buf = p;
1072 int i;
1073
1074 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION);
1075
1076 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++)
1077 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32)));
1078}
1079
1080static int nfp_net_get_coalesce(struct net_device *netdev,
1081 struct ethtool_coalesce *ec,
1082 struct kernel_ethtool_coalesce *kernel_coal,
1083 struct netlink_ext_ack *extack)
1084{
1085 struct nfp_net *nn = netdev_priv(netdev);
1086
1087 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
1088 return -EINVAL;
1089
1090 ec->use_adaptive_rx_coalesce = nn->rx_coalesce_adapt_on;
1091 ec->use_adaptive_tx_coalesce = nn->tx_coalesce_adapt_on;
1092
1093 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs;
1094 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames;
1095 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs;
1096 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames;
1097
1098 return 0;
1099}
1100
1101
1102
1103static int
1104nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer)
1105{
1106 struct nfp_resource *res;
1107 int ret;
1108
1109 if (!app)
1110 return -EOPNOTSUPP;
1111
1112 dump->version = 1;
1113 dump->flag = NFP_DUMP_NSP_DIAG;
1114
1115 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG);
1116 if (IS_ERR(res))
1117 return PTR_ERR(res);
1118
1119 if (buffer) {
1120 if (dump->len != nfp_resource_size(res)) {
1121 ret = -EINVAL;
1122 goto exit_release;
1123 }
1124
1125 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res),
1126 nfp_resource_address(res),
1127 buffer, dump->len);
1128 if (ret != dump->len)
1129 ret = ret < 0 ? ret : -EIO;
1130 else
1131 ret = 0;
1132 } else {
1133 dump->len = nfp_resource_size(res);
1134 ret = 0;
1135 }
1136exit_release:
1137 nfp_resource_release(res);
1138
1139 return ret;
1140}
1141
1142
1143
1144
1145
1146
1147static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)
1148{
1149 struct nfp_app *app = nfp_app_from_netdev(netdev);
1150 s64 len;
1151
1152 if (!app)
1153 return -EOPNOTSUPP;
1154
1155 if (val->flag == NFP_DUMP_NSP_DIAG) {
1156 app->pf->dump_flag = val->flag;
1157 return 0;
1158 }
1159
1160 if (!app->pf->dumpspec)
1161 return -EOPNOTSUPP;
1162
1163 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec,
1164 val->flag);
1165 if (len < 0)
1166 return len;
1167
1168 app->pf->dump_flag = val->flag;
1169 app->pf->dump_len = len;
1170
1171 return 0;
1172}
1173
1174static int
1175nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
1176{
1177 struct nfp_app *app = nfp_app_from_netdev(netdev);
1178
1179 if (!app)
1180 return -EOPNOTSUPP;
1181
1182 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)
1183 return nfp_dump_nsp_diag(app, dump, NULL);
1184
1185 dump->flag = app->pf->dump_flag;
1186 dump->len = app->pf->dump_len;
1187
1188 return 0;
1189}
1190
1191static int
1192nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
1193 void *buffer)
1194{
1195 struct nfp_app *app = nfp_app_from_netdev(netdev);
1196
1197 if (!app)
1198 return -EOPNOTSUPP;
1199
1200 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)
1201 return nfp_dump_nsp_diag(app, dump, buffer);
1202
1203 dump->flag = app->pf->dump_flag;
1204 dump->len = app->pf->dump_len;
1205
1206 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump,
1207 buffer);
1208}
1209
1210static int
1211nfp_port_get_module_info(struct net_device *netdev,
1212 struct ethtool_modinfo *modinfo)
1213{
1214 struct nfp_eth_table_port *eth_port;
1215 struct nfp_port *port;
1216 unsigned int read_len;
1217 struct nfp_nsp *nsp;
1218 int err = 0;
1219 u8 data;
1220
1221 port = nfp_port_from_netdev(netdev);
1222 eth_port = nfp_port_get_eth_port(port);
1223 if (!eth_port)
1224 return -EOPNOTSUPP;
1225
1226 nsp = nfp_nsp_open(port->app->cpp);
1227 if (IS_ERR(nsp)) {
1228 err = PTR_ERR(nsp);
1229 netdev_err(netdev, "Failed to access the NSP: %d\n", err);
1230 return err;
1231 }
1232
1233 if (!nfp_nsp_has_read_module_eeprom(nsp)) {
1234 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");
1235 err = -EOPNOTSUPP;
1236 goto exit_close_nsp;
1237 }
1238
1239 switch (eth_port->interface) {
1240 case NFP_INTERFACE_SFP:
1241 case NFP_INTERFACE_SFP28:
1242 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
1243 SFP_SFF8472_COMPLIANCE, &data,
1244 1, &read_len);
1245 if (err < 0)
1246 goto exit_close_nsp;
1247
1248 if (!data) {
1249 modinfo->type = ETH_MODULE_SFF_8079;
1250 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
1251 } else {
1252 modinfo->type = ETH_MODULE_SFF_8472;
1253 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1254 }
1255 break;
1256 case NFP_INTERFACE_QSFP:
1257 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
1258 SFP_SFF_REV_COMPLIANCE, &data,
1259 1, &read_len);
1260 if (err < 0)
1261 goto exit_close_nsp;
1262
1263 if (data < 0x3) {
1264 modinfo->type = ETH_MODULE_SFF_8436;
1265 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1266 } else {
1267 modinfo->type = ETH_MODULE_SFF_8636;
1268 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1269 }
1270 break;
1271 case NFP_INTERFACE_QSFP28:
1272 modinfo->type = ETH_MODULE_SFF_8636;
1273 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1274 break;
1275 default:
1276 netdev_err(netdev, "Unsupported module 0x%x detected\n",
1277 eth_port->interface);
1278 err = -EINVAL;
1279 }
1280
1281exit_close_nsp:
1282 nfp_nsp_close(nsp);
1283 return err;
1284}
1285
1286static int
1287nfp_port_get_module_eeprom(struct net_device *netdev,
1288 struct ethtool_eeprom *eeprom, u8 *data)
1289{
1290 struct nfp_eth_table_port *eth_port;
1291 struct nfp_port *port;
1292 struct nfp_nsp *nsp;
1293 int err;
1294
1295 port = nfp_port_from_netdev(netdev);
1296 eth_port = __nfp_port_get_eth_port(port);
1297 if (!eth_port)
1298 return -EOPNOTSUPP;
1299
1300 nsp = nfp_nsp_open(port->app->cpp);
1301 if (IS_ERR(nsp)) {
1302 err = PTR_ERR(nsp);
1303 netdev_err(netdev, "Failed to access the NSP: %d\n", err);
1304 return err;
1305 }
1306
1307 if (!nfp_nsp_has_read_module_eeprom(nsp)) {
1308 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");
1309 err = -EOPNOTSUPP;
1310 goto exit_close_nsp;
1311 }
1312
1313 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
1314 eeprom->offset, data, eeprom->len,
1315 &eeprom->len);
1316 if (err < 0) {
1317 if (eeprom->len) {
1318 netdev_warn(netdev,
1319 "Incomplete read from module EEPROM: %d\n",
1320 err);
1321 err = 0;
1322 } else {
1323 netdev_err(netdev,
1324 "Reading from module EEPROM failed: %d\n",
1325 err);
1326 }
1327 }
1328
1329exit_close_nsp:
1330 nfp_nsp_close(nsp);
1331 return err;
1332}
1333
1334static int nfp_net_set_coalesce(struct net_device *netdev,
1335 struct ethtool_coalesce *ec,
1336 struct kernel_ethtool_coalesce *kernel_coal,
1337 struct netlink_ext_ack *extack)
1338{
1339 struct nfp_net *nn = netdev_priv(netdev);
1340 unsigned int factor;
1341
1342
1343
1344
1345
1346 factor = nn->me_freq_mhz / 16;
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
1362 return -EINVAL;
1363
1364
1365 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames)
1366 return -EINVAL;
1367
1368 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames)
1369 return -EINVAL;
1370
1371 if (nfp_net_coalesce_para_check(ec->rx_coalesce_usecs * factor,
1372 ec->rx_max_coalesced_frames))
1373 return -EINVAL;
1374
1375 if (nfp_net_coalesce_para_check(ec->tx_coalesce_usecs * factor,
1376 ec->tx_max_coalesced_frames))
1377 return -EINVAL;
1378
1379
1380 nn->rx_coalesce_adapt_on = !!ec->use_adaptive_rx_coalesce;
1381 nn->tx_coalesce_adapt_on = !!ec->use_adaptive_tx_coalesce;
1382
1383 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs;
1384 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames;
1385 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs;
1386 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames;
1387
1388
1389 nfp_net_coalesce_write_cfg(nn);
1390 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD);
1391}
1392
1393static void nfp_net_get_channels(struct net_device *netdev,
1394 struct ethtool_channels *channel)
1395{
1396 struct nfp_net *nn = netdev_priv(netdev);
1397 unsigned int num_tx_rings;
1398
1399 num_tx_rings = nn->dp.num_tx_rings;
1400 if (nn->dp.xdp_prog)
1401 num_tx_rings -= nn->dp.num_rx_rings;
1402
1403 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs);
1404 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs);
1405 channel->max_combined = min(channel->max_rx, channel->max_tx);
1406 channel->max_other = NFP_NET_NON_Q_VECTORS;
1407 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings);
1408 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count;
1409 channel->tx_count = num_tx_rings - channel->combined_count;
1410 channel->other_count = NFP_NET_NON_Q_VECTORS;
1411}
1412
1413static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,
1414 unsigned int total_tx)
1415{
1416 struct nfp_net_dp *dp;
1417
1418 dp = nfp_net_clone_dp(nn);
1419 if (!dp)
1420 return -ENOMEM;
1421
1422 dp->num_rx_rings = total_rx;
1423 dp->num_tx_rings = total_tx;
1424
1425 if (dp->xdp_prog)
1426 dp->num_tx_rings += total_rx;
1427
1428 return nfp_net_ring_reconfig(nn, dp, NULL);
1429}
1430
1431static int nfp_net_set_channels(struct net_device *netdev,
1432 struct ethtool_channels *channel)
1433{
1434 struct nfp_net *nn = netdev_priv(netdev);
1435 unsigned int total_rx, total_tx;
1436
1437
1438 if (channel->other_count != NFP_NET_NON_Q_VECTORS ||
1439 (channel->rx_count && channel->tx_count))
1440 return -EINVAL;
1441
1442 total_rx = channel->combined_count + channel->rx_count;
1443 total_tx = channel->combined_count + channel->tx_count;
1444
1445 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) ||
1446 total_tx > min(nn->max_tx_rings, nn->max_r_vecs))
1447 return -EINVAL;
1448
1449 return nfp_net_set_num_rings(nn, total_rx, total_tx);
1450}
1451
1452static const struct ethtool_ops nfp_net_ethtool_ops = {
1453 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1454 ETHTOOL_COALESCE_MAX_FRAMES |
1455 ETHTOOL_COALESCE_USE_ADAPTIVE,
1456 .get_drvinfo = nfp_net_get_drvinfo,
1457 .get_link = ethtool_op_get_link,
1458 .get_ringparam = nfp_net_get_ringparam,
1459 .set_ringparam = nfp_net_set_ringparam,
1460 .get_strings = nfp_net_get_strings,
1461 .get_ethtool_stats = nfp_net_get_stats,
1462 .get_sset_count = nfp_net_get_sset_count,
1463 .get_rxnfc = nfp_net_get_rxnfc,
1464 .set_rxnfc = nfp_net_set_rxnfc,
1465 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size,
1466 .get_rxfh_key_size = nfp_net_get_rxfh_key_size,
1467 .get_rxfh = nfp_net_get_rxfh,
1468 .set_rxfh = nfp_net_set_rxfh,
1469 .get_regs_len = nfp_net_get_regs_len,
1470 .get_regs = nfp_net_get_regs,
1471 .set_dump = nfp_app_set_dump,
1472 .get_dump_flag = nfp_app_get_dump_flag,
1473 .get_dump_data = nfp_app_get_dump_data,
1474 .get_module_info = nfp_port_get_module_info,
1475 .get_module_eeprom = nfp_port_get_module_eeprom,
1476 .get_coalesce = nfp_net_get_coalesce,
1477 .set_coalesce = nfp_net_set_coalesce,
1478 .get_channels = nfp_net_get_channels,
1479 .set_channels = nfp_net_set_channels,
1480 .get_link_ksettings = nfp_net_get_link_ksettings,
1481 .set_link_ksettings = nfp_net_set_link_ksettings,
1482 .get_fecparam = nfp_port_get_fecparam,
1483 .set_fecparam = nfp_port_set_fecparam,
1484};
1485
1486const struct ethtool_ops nfp_port_ethtool_ops = {
1487 .get_drvinfo = nfp_app_get_drvinfo,
1488 .get_link = ethtool_op_get_link,
1489 .get_strings = nfp_port_get_strings,
1490 .get_ethtool_stats = nfp_port_get_stats,
1491 .get_sset_count = nfp_port_get_sset_count,
1492 .set_dump = nfp_app_set_dump,
1493 .get_dump_flag = nfp_app_get_dump_flag,
1494 .get_dump_data = nfp_app_get_dump_data,
1495 .get_module_info = nfp_port_get_module_info,
1496 .get_module_eeprom = nfp_port_get_module_eeprom,
1497 .get_link_ksettings = nfp_net_get_link_ksettings,
1498 .set_link_ksettings = nfp_net_set_link_ksettings,
1499 .get_fecparam = nfp_port_get_fecparam,
1500 .set_fecparam = nfp_port_set_fecparam,
1501};
1502
1503void nfp_net_set_ethtool_ops(struct net_device *netdev)
1504{
1505 netdev->ethtool_ops = &nfp_net_ethtool_ops;
1506}
1507
