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