1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 /* Copyright (C) 2015-2018 Netronome Systems, Inc. */
6 * Netronome network device driver: ethtool support
7 * Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
8 * Jason McMullan <jason.mcmullan@netronome.com>
9 * Rolf Neugebauer <rolf.neugebauer@netronome.com>
10 * Brad Petrus <brad.petrus@netronome.com>
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>
23 #include "nfpcore/nfp.h"
24 #include "nfpcore/nfp_nsp.h"
27 #include "nfp_net_ctrl.h"
32 char name[ETH_GSTRING_LEN];
36 static const struct nfp_et_stat nfp_net_et_stats[] = {
37 /* Stats from the device */
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 },
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 },
58 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
59 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
60 /* see comments in outro functions in nfp_bpf_jit.c to find out
61 * how different BPF modes use app-specific counters
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 },
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, },
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
157 #define SFP_SFF_REV_COMPLIANCE 1
159 static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
166 nsp = nfp_nsp_open(app->cpp);
170 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",
171 nfp_nsp_get_abi_ver_major(nsp),
172 nfp_nsp_get_abi_ver_minor(nsp));
178 nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,
179 const char *vnic_version, struct ethtool_drvinfo *drvinfo)
181 char nsp_version[ETHTOOL_FWVERS_LEN] = {};
183 strlcpy(drvinfo->driver, pdev->driver->name, sizeof(drvinfo->driver));
184 strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version));
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));
193 nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
195 char vnic_version[ETHTOOL_FWVERS_LEN] = {};
196 struct nfp_net *nn = netdev_priv(netdev);
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));
204 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
208 nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
210 struct nfp_app *app = nfp_app_from_netdev(netdev);
212 strlcpy(drvinfo->bus_info, pci_name(app->pdev),
213 sizeof(drvinfo->bus_info));
214 nfp_get_drvinfo(app, app->pdev, "*", drvinfo);
218 nfp_net_set_fec_link_mode(struct nfp_eth_table_port *eth_port,
219 struct ethtool_link_ksettings *c)
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);
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);
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);
242 * nfp_net_get_link_ksettings - Get Link Speed settings
243 * @netdev: network interface device structure
244 * @cmd: ethtool command
246 * Reports speed settings based on info in the BAR provided by the fw.
249 nfp_net_get_link_ksettings(struct net_device *netdev,
250 struct ethtool_link_ksettings *cmd)
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,
262 struct nfp_eth_table_port *eth_port;
263 struct nfp_port *port;
267 /* Init to unknowns */
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;
273 port = nfp_port_from_netdev(netdev);
274 eth_port = nfp_port_get_eth_port(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);
281 if (!netif_carrier_ok(netdev))
284 /* Use link speed from ETH table if available, otherwise try the BAR */
286 cmd->base.port = eth_port->port_type;
287 cmd->base.speed = eth_port->speed;
288 cmd->base.duplex = DUPLEX_FULL;
292 if (!nfp_netdev_is_nfp_net(netdev))
294 nn = netdev_priv(netdev);
296 sts = nn_readl(nn, NFP_NET_CFG_STS);
298 ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts);
299 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED)
302 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNKNOWN ||
303 ls >= ARRAY_SIZE(ls_to_ethtool))
306 cmd->base.speed = ls_to_ethtool[ls];
307 cmd->base.duplex = DUPLEX_FULL;
313 nfp_net_set_link_ksettings(struct net_device *netdev,
314 const struct ethtool_link_ksettings *cmd)
316 struct nfp_eth_table_port *eth_port;
317 struct nfp_port *port;
321 port = nfp_port_from_netdev(netdev);
322 eth_port = __nfp_port_get_eth_port(port);
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");
331 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
335 err = __nfp_eth_set_aneg(nsp, cmd->base.autoneg == AUTONEG_ENABLE ?
336 NFP_ANEG_AUTO : NFP_ANEG_DISABLED);
339 if (cmd->base.speed != SPEED_UNKNOWN) {
340 u32 speed = cmd->base.speed / eth_port->lanes;
342 err = __nfp_eth_set_speed(nsp, speed);
347 err = nfp_eth_config_commit_end(nsp);
349 return 0; /* no change */
351 nfp_net_refresh_port_table(port);
356 nfp_eth_config_cleanup_end(nsp);
360 static void nfp_net_get_ringparam(struct net_device *netdev,
361 struct ethtool_ringparam *ring)
363 struct nfp_net *nn = netdev_priv(netdev);
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;
371 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt)
373 struct nfp_net_dp *dp;
375 dp = nfp_net_clone_dp(nn);
379 dp->rxd_cnt = rxd_cnt;
380 dp->txd_cnt = txd_cnt;
382 return nfp_net_ring_reconfig(nn, dp, NULL);
385 static int nfp_net_set_ringparam(struct net_device *netdev,
386 struct ethtool_ringparam *ring)
388 struct nfp_net *nn = netdev_priv(netdev);
389 u32 rxd_cnt, txd_cnt;
391 /* We don't have separate queues/rings for small/large frames. */
392 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
395 /* Round up to supported values */
396 rxd_cnt = roundup_pow_of_two(ring->rx_pending);
397 txd_cnt = roundup_pow_of_two(ring->tx_pending);
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)
403 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt)
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);
409 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt);
412 __printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...)
417 vsnprintf(data, ETH_GSTRING_LEN, fmt, args);
420 return data + ETH_GSTRING_LEN;
423 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)
425 struct nfp_net *nn = netdev_priv(netdev);
427 return NN_RVEC_GATHER_STATS + nn->max_r_vecs * NN_RVEC_PER_Q_STATS +
431 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data)
433 struct nfp_net *nn = netdev_priv(netdev);
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);
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");
456 data = nfp_pr_et(data, "hw_tls_no_space");
461 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
463 u64 gathered_stats[NN_RVEC_GATHER_STATS] = {};
464 struct nfp_net *nn = netdev_priv(netdev);
465 u64 tmp[NN_RVEC_GATHER_STATS];
468 for (i = 0; i < nn->max_r_vecs; i++) {
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));
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));
495 data += NN_RVEC_PER_Q_STATS;
497 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
498 gathered_stats[j] += tmp[j];
501 for (j = 0; j < NN_RVEC_GATHER_STATS; j++)
502 *data++ = gathered_stats[j];
504 *data++ = atomic_read(&nn->ktls_no_space);
509 static unsigned int nfp_vnic_get_hw_stats_count(unsigned int num_vecs)
511 return NN_ET_GLOBAL_STATS_LEN + num_vecs * 4;
515 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int num_vecs, bool repr)
519 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2);
520 /* If repr is true first add SWITCH_STATS_LEN and then subtract it
521 * effectively swapping the RX and TX statistics (giving us the RX
522 * and TX from perspective of the switch).
524 swap_off = repr * NN_ET_SWITCH_STATS_LEN;
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);
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);
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);
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);
546 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem, unsigned int num_vecs)
550 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++)
551 *data++ = readq(mem + nfp_net_et_stats[i].off);
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);
563 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev)
565 struct nfp_port *port;
567 port = nfp_port_from_netdev(netdev);
568 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
571 return ARRAY_SIZE(nfp_mac_et_stats);
574 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data)
576 struct nfp_port *port;
579 port = nfp_port_from_netdev(netdev);
580 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
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);
589 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data)
591 struct nfp_port *port;
594 port = nfp_port_from_netdev(netdev);
595 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
598 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
599 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off);
604 static void nfp_net_get_strings(struct net_device *netdev,
605 u32 stringset, u8 *data)
607 struct nfp_net *nn = netdev_priv(netdev);
611 data = nfp_vnic_get_sw_stats_strings(netdev, data);
612 data = nfp_vnic_get_hw_stats_strings(data, nn->max_r_vecs,
614 data = nfp_mac_get_stats_strings(netdev, data);
615 data = nfp_app_port_get_stats_strings(nn->port, data);
621 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
624 struct nfp_net *nn = netdev_priv(netdev);
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);
632 static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
634 struct nfp_net *nn = netdev_priv(netdev);
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);
647 static void nfp_port_get_strings(struct net_device *netdev,
648 u32 stringset, u8 *data)
650 struct nfp_port *port = nfp_port_from_netdev(netdev);
654 if (nfp_port_is_vnic(port))
655 data = nfp_vnic_get_hw_stats_strings(data, 0, true);
657 data = nfp_mac_get_stats_strings(netdev, data);
658 data = nfp_app_port_get_stats_strings(port, data);
664 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
667 struct nfp_port *port = nfp_port_from_netdev(netdev);
669 if (nfp_port_is_vnic(port))
670 data = nfp_vnic_get_hw_stats(data, port->vnic, 0);
672 data = nfp_mac_get_stats(netdev, data);
673 data = nfp_app_port_get_stats(port, data);
676 static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
678 struct nfp_port *port = nfp_port_from_netdev(netdev);
683 if (nfp_port_is_vnic(port))
684 count = nfp_vnic_get_hw_stats_count(0);
686 count = nfp_mac_get_stats_count(netdev);
687 count += nfp_app_port_get_stats_count(port);
694 static int nfp_port_fec_ethtool_to_nsp(u32 fec)
697 case ETHTOOL_FEC_AUTO:
698 return NFP_FEC_AUTO_BIT;
699 case ETHTOOL_FEC_OFF:
700 return NFP_FEC_DISABLED_BIT;
702 return NFP_FEC_REED_SOLOMON_BIT;
703 case ETHTOOL_FEC_BASER:
704 return NFP_FEC_BASER_BIT;
706 /* NSP only supports a single mode at a time */
711 static u32 nfp_port_fec_nsp_to_ethtool(u32 fec)
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;
724 return result ?: ETHTOOL_FEC_NONE;
728 nfp_port_get_fecparam(struct net_device *netdev,
729 struct ethtool_fecparam *param)
731 struct nfp_eth_table_port *eth_port;
732 struct nfp_port *port;
734 param->active_fec = ETHTOOL_FEC_NONE_BIT;
735 param->fec = ETHTOOL_FEC_NONE_BIT;
737 port = nfp_port_from_netdev(netdev);
738 eth_port = nfp_port_get_eth_port(port);
742 if (!nfp_eth_can_support_fec(eth_port))
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);
752 nfp_port_set_fecparam(struct net_device *netdev,
753 struct ethtool_fecparam *param)
755 struct nfp_eth_table_port *eth_port;
756 struct nfp_port *port;
759 port = nfp_port_from_netdev(netdev);
760 eth_port = nfp_port_get_eth_port(port);
764 if (!nfp_eth_can_support_fec(eth_port))
767 fec = nfp_port_fec_ethtool_to_nsp(param->fec);
771 err = nfp_eth_set_fec(port->app->cpp, eth_port->index, fec);
773 /* Only refresh if we did something */
774 nfp_net_refresh_port_table(port);
776 return err < 0 ? err : 0;
779 /* RX network flow classification (RSS, filters, etc)
781 static u32 ethtool_flow_to_nfp_flag(u32 flow_type)
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,
792 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp))
795 return xlate_ethtool_to_nfp[flow_type];
798 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,
799 struct ethtool_rxnfc *cmd)
805 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
808 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);
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;
819 static int nfp_net_get_rxnfc(struct net_device *netdev,
820 struct ethtool_rxnfc *cmd, u32 *rule_locs)
822 struct nfp_net *nn = netdev_priv(netdev);
825 case ETHTOOL_GRXRINGS:
826 cmd->data = nn->dp.num_rx_rings;
829 return nfp_net_get_rss_hash_opts(nn, cmd);
835 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,
836 struct ethtool_rxnfc *nfc)
838 u32 new_rss_cfg = nn->rss_cfg;
842 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
845 /* RSS only supports IP SA/DA and L4 src/dst ports */
846 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
847 RXH_L4_B_0_1 | RXH_L4_B_2_3))
850 /* We need at least the IP SA/DA fields for hashing */
851 if (!(nfc->data & RXH_IP_SRC) ||
852 !(nfc->data & RXH_IP_DST))
855 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type);
859 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
861 new_rss_cfg &= ~nfp_rss_flag;
863 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
864 new_rss_cfg |= nfp_rss_flag;
870 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc);
871 new_rss_cfg |= NFP_NET_CFG_RSS_MASK;
873 if (new_rss_cfg == nn->rss_cfg)
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);
881 nn->rss_cfg = new_rss_cfg;
883 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg);
887 static int nfp_net_set_rxnfc(struct net_device *netdev,
888 struct ethtool_rxnfc *cmd)
890 struct nfp_net *nn = netdev_priv(netdev);
894 return nfp_net_set_rss_hash_opt(nn, cmd);
900 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)
902 struct nfp_net *nn = netdev_priv(netdev);
904 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
907 return ARRAY_SIZE(nn->rss_itbl);
910 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)
912 struct nfp_net *nn = netdev_priv(netdev);
914 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
917 return nfp_net_rss_key_sz(nn);
920 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
923 struct nfp_net *nn = netdev_priv(netdev);
926 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
930 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
931 indir[i] = nn->rss_itbl[i];
933 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn));
935 *hfunc = nn->rss_hfunc;
936 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
937 *hfunc = ETH_RSS_HASH_UNKNOWN;
943 static int nfp_net_set_rxfh(struct net_device *netdev,
944 const u32 *indir, const u8 *key,
947 struct nfp_net *nn = netdev_priv(netdev);
950 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
951 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc))
958 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn));
959 nfp_net_rss_write_key(nn);
962 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
963 nn->rss_itbl[i] = indir[i];
965 nfp_net_rss_write_itbl(nn);
968 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
971 /* Dump BAR registers
973 static int nfp_net_get_regs_len(struct net_device *netdev)
975 return NFP_NET_CFG_BAR_SZ;
978 static void nfp_net_get_regs(struct net_device *netdev,
979 struct ethtool_regs *regs, void *p)
981 struct nfp_net *nn = netdev_priv(netdev);
985 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION);
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)));
991 static int nfp_net_get_coalesce(struct net_device *netdev,
992 struct ethtool_coalesce *ec)
994 struct nfp_net *nn = netdev_priv(netdev);
996 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
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;
1007 /* Other debug dumps
1010 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer)
1012 struct nfp_resource *res;
1019 dump->flag = NFP_DUMP_NSP_DIAG;
1021 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG);
1023 return PTR_ERR(res);
1026 if (dump->len != nfp_resource_size(res)) {
1031 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res),
1032 nfp_resource_address(res),
1034 if (ret != dump->len)
1035 ret = ret < 0 ? ret : -EIO;
1039 dump->len = nfp_resource_size(res);
1043 nfp_resource_release(res);
1048 /* Set the dump flag/level. Calculate the dump length for flag > 0 only (new TLV
1049 * based dumps), since flag 0 (default) calculates the length in
1050 * nfp_app_get_dump_flag(), and we need to support triggering a level 0 dump
1051 * without setting the flag first, for backward compatibility.
1053 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)
1055 struct nfp_app *app = nfp_app_from_netdev(netdev);
1061 if (val->flag == NFP_DUMP_NSP_DIAG) {
1062 app->pf->dump_flag = val->flag;
1066 if (!app->pf->dumpspec)
1069 len = nfp_net_dump_calculate_size(app->pf, app->pf->dumpspec,
1074 app->pf->dump_flag = val->flag;
1075 app->pf->dump_len = len;
1081 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
1083 struct nfp_app *app = nfp_app_from_netdev(netdev);
1088 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)
1089 return nfp_dump_nsp_diag(app, dump, NULL);
1091 dump->flag = app->pf->dump_flag;
1092 dump->len = app->pf->dump_len;
1098 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
1101 struct nfp_app *app = nfp_app_from_netdev(netdev);
1106 if (app->pf->dump_flag == NFP_DUMP_NSP_DIAG)
1107 return nfp_dump_nsp_diag(app, dump, buffer);
1109 dump->flag = app->pf->dump_flag;
1110 dump->len = app->pf->dump_len;
1112 return nfp_net_dump_populate_buffer(app->pf, app->pf->dumpspec, dump,
1117 nfp_port_get_module_info(struct net_device *netdev,
1118 struct ethtool_modinfo *modinfo)
1120 struct nfp_eth_table_port *eth_port;
1121 struct nfp_port *port;
1122 unsigned int read_len;
1123 struct nfp_nsp *nsp;
1127 port = nfp_port_from_netdev(netdev);
1128 eth_port = nfp_port_get_eth_port(port);
1132 nsp = nfp_nsp_open(port->app->cpp);
1135 netdev_err(netdev, "Failed to access the NSP: %d\n", err);
1139 if (!nfp_nsp_has_read_module_eeprom(nsp)) {
1140 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");
1142 goto exit_close_nsp;
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,
1152 goto exit_close_nsp;
1155 modinfo->type = ETH_MODULE_SFF_8079;
1156 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
1158 modinfo->type = ETH_MODULE_SFF_8472;
1159 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1162 case NFP_INTERFACE_QSFP:
1163 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
1164 SFP_SFF_REV_COMPLIANCE, &data,
1167 goto exit_close_nsp;
1170 modinfo->type = ETH_MODULE_SFF_8436;
1171 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1173 modinfo->type = ETH_MODULE_SFF_8636;
1174 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1177 case NFP_INTERFACE_QSFP28:
1178 modinfo->type = ETH_MODULE_SFF_8636;
1179 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1182 netdev_err(netdev, "Unsupported module 0x%x detected\n",
1183 eth_port->interface);
1193 nfp_port_get_module_eeprom(struct net_device *netdev,
1194 struct ethtool_eeprom *eeprom, u8 *data)
1196 struct nfp_eth_table_port *eth_port;
1197 struct nfp_port *port;
1198 struct nfp_nsp *nsp;
1201 port = nfp_port_from_netdev(netdev);
1202 eth_port = __nfp_port_get_eth_port(port);
1206 nsp = nfp_nsp_open(port->app->cpp);
1209 netdev_err(netdev, "Failed to access the NSP: %d\n", err);
1213 if (!nfp_nsp_has_read_module_eeprom(nsp)) {
1214 netdev_info(netdev, "reading module EEPROM not supported. Please update flash\n");
1216 goto exit_close_nsp;
1219 err = nfp_nsp_read_module_eeprom(nsp, eth_port->eth_index,
1220 eeprom->offset, data, eeprom->len,
1225 "Incomplete read from module EEPROM: %d\n",
1230 "Reading from module EEPROM failed: %d\n",
1240 static int nfp_net_set_coalesce(struct net_device *netdev,
1241 struct ethtool_coalesce *ec)
1243 struct nfp_net *nn = netdev_priv(netdev);
1244 unsigned int factor;
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 ||
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)
1266 /* Compute factor used to convert coalesce '_usecs' parameters to
1267 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp
1270 factor = nn->me_freq_mhz / 16;
1272 /* Each pair of (usecs, max_frames) fields specifies that interrupts
1273 * should be coalesced until
1274 * (usecs > 0 && time_since_first_completion >= usecs) ||
1275 * (max_frames > 0 && completed_frames >= max_frames)
1277 * It is illegal to set both usecs and max_frames to zero as this would
1278 * cause interrupts to never be generated. To disable coalescing, set
1279 * usecs = 0 and max_frames = 1.
1281 * Some implementations ignore the value of max_frames and use the
1282 * condition time_since_first_completion >= usecs
1285 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
1288 /* ensure valid configuration */
1289 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames)
1292 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames)
1295 if (ec->rx_coalesce_usecs * factor >= ((1 << 16) - 1))
1298 if (ec->tx_coalesce_usecs * factor >= ((1 << 16) - 1))
1301 if (ec->rx_max_coalesced_frames >= ((1 << 16) - 1))
1304 if (ec->tx_max_coalesced_frames >= ((1 << 16) - 1))
1307 /* configuration is valid */
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;
1313 /* write configuration to device */
1314 nfp_net_coalesce_write_cfg(nn);
1315 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD);
1318 static void nfp_net_get_channels(struct net_device *netdev,
1319 struct ethtool_channels *channel)
1321 struct nfp_net *nn = netdev_priv(netdev);
1322 unsigned int num_tx_rings;
1324 num_tx_rings = nn->dp.num_tx_rings;
1325 if (nn->dp.xdp_prog)
1326 num_tx_rings -= nn->dp.num_rx_rings;
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;
1338 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,
1339 unsigned int total_tx)
1341 struct nfp_net_dp *dp;
1343 dp = nfp_net_clone_dp(nn);
1347 dp->num_rx_rings = total_rx;
1348 dp->num_tx_rings = total_tx;
1349 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */
1351 dp->num_tx_rings += total_rx;
1353 return nfp_net_ring_reconfig(nn, dp, NULL);
1356 static int nfp_net_set_channels(struct net_device *netdev,
1357 struct ethtool_channels *channel)
1359 struct nfp_net *nn = netdev_priv(netdev);
1360 unsigned int total_rx, total_tx;
1362 /* Reject unsupported */
1363 if (!channel->combined_count ||
1364 channel->other_count != NFP_NET_NON_Q_VECTORS ||
1365 (channel->rx_count && channel->tx_count))
1368 total_rx = channel->combined_count + channel->rx_count;
1369 total_tx = channel->combined_count + channel->tx_count;
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))
1375 return nfp_net_set_num_rings(nn, total_rx, total_tx);
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,
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,
1426 void nfp_net_set_ethtool_ops(struct net_device *netdev)
1428 netdev->ethtool_ops = &nfp_net_ethtool_ops;