2 * Copyright (C) 2015-2017 Netronome Systems, Inc.
4 * This software is dual licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree or the BSD 2-Clause License provided below. You have the
7 * option to license this software under the complete terms of either license.
9 * The BSD 2-Clause License:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * 1. Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * 2. Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 * Netronome network device driver: ethtool support
37 * Authors: Jakub Kicinski <jakub.kicinski@netronome.com>
38 * Jason McMullan <jason.mcmullan@netronome.com>
39 * Rolf Neugebauer <rolf.neugebauer@netronome.com>
40 * Brad Petrus <brad.petrus@netronome.com>
43 #include <linux/bitfield.h>
44 #include <linux/kernel.h>
45 #include <linux/netdevice.h>
46 #include <linux/etherdevice.h>
47 #include <linux/interrupt.h>
48 #include <linux/pci.h>
49 #include <linux/ethtool.h>
51 #include "nfpcore/nfp.h"
52 #include "nfpcore/nfp_nsp.h"
54 #include "nfp_net_ctrl.h"
59 NFP_DUMP_NSP_DIAG = 0,
63 char name[ETH_GSTRING_LEN];
67 static const struct nfp_et_stat nfp_net_et_stats[] = {
68 /* Stats from the device */
69 { "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS },
70 { "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS },
71 { "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS },
72 { "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS },
73 { "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS },
74 { "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS },
75 { "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES },
76 { "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES },
77 { "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES },
79 { "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS },
80 { "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS },
81 { "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS },
82 { "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS },
83 { "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS },
84 { "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS },
85 { "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES },
86 { "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES },
87 { "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES },
89 { "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
90 { "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
91 /* see comments in outro functions in nfp_bpf_jit.c to find out
92 * how different BPF modes use app-specific counters
94 { "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES },
95 { "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES },
96 { "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES },
97 { "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES },
98 { "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES },
99 { "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES },
102 static const struct nfp_et_stat nfp_mac_et_stats[] = {
103 { "rx_octets", NFP_MAC_STATS_RX_IN_OCTETS, },
104 { "rx_frame_too_long_errors",
105 NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS, },
106 { "rx_range_length_errors", NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS, },
107 { "rx_vlan_reveive_ok", NFP_MAC_STATS_RX_VLAN_REVEIVE_OK, },
108 { "rx_errors", NFP_MAC_STATS_RX_IN_ERRORS, },
109 { "rx_broadcast_pkts", NFP_MAC_STATS_RX_IN_BROADCAST_PKTS, },
110 { "rx_drop_events", NFP_MAC_STATS_RX_DROP_EVENTS, },
111 { "rx_alignment_errors", NFP_MAC_STATS_RX_ALIGNMENT_ERRORS, },
112 { "rx_pause_mac_ctrl_frames",
113 NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES, },
114 { "rx_frames_received_ok", NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK, },
115 { "rx_frame_check_sequence_errors",
116 NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS, },
117 { "rx_unicast_pkts", NFP_MAC_STATS_RX_UNICAST_PKTS, },
118 { "rx_multicast_pkts", NFP_MAC_STATS_RX_MULTICAST_PKTS, },
119 { "rx_pkts", NFP_MAC_STATS_RX_PKTS, },
120 { "rx_undersize_pkts", NFP_MAC_STATS_RX_UNDERSIZE_PKTS, },
121 { "rx_pkts_64_octets", NFP_MAC_STATS_RX_PKTS_64_OCTETS, },
122 { "rx_pkts_65_to_127_octets",
123 NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS, },
124 { "rx_pkts_128_to_255_octets",
125 NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS, },
126 { "rx_pkts_256_to_511_octets",
127 NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS, },
128 { "rx_pkts_512_to_1023_octets",
129 NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS, },
130 { "rx_pkts_1024_to_1518_octets",
131 NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS, },
132 { "rx_pkts_1519_to_max_octets",
133 NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS, },
134 { "rx_jabbers", NFP_MAC_STATS_RX_JABBERS, },
135 { "rx_fragments", NFP_MAC_STATS_RX_FRAGMENTS, },
136 { "rx_oversize_pkts", NFP_MAC_STATS_RX_OVERSIZE_PKTS, },
137 { "rx_pause_frames_class0", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0, },
138 { "rx_pause_frames_class1", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1, },
139 { "rx_pause_frames_class2", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2, },
140 { "rx_pause_frames_class3", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3, },
141 { "rx_pause_frames_class4", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4, },
142 { "rx_pause_frames_class5", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5, },
143 { "rx_pause_frames_class6", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6, },
144 { "rx_pause_frames_class7", NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7, },
145 { "rx_mac_ctrl_frames_received",
146 NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED, },
147 { "rx_mac_head_drop", NFP_MAC_STATS_RX_MAC_HEAD_DROP, },
148 { "tx_queue_drop", NFP_MAC_STATS_TX_QUEUE_DROP, },
149 { "tx_octets", NFP_MAC_STATS_TX_OUT_OCTETS, },
150 { "tx_vlan_transmitted_ok", NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK, },
151 { "tx_errors", NFP_MAC_STATS_TX_OUT_ERRORS, },
152 { "tx_broadcast_pkts", NFP_MAC_STATS_TX_BROADCAST_PKTS, },
153 { "tx_pause_mac_ctrl_frames",
154 NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES, },
155 { "tx_frames_transmitted_ok",
156 NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK, },
157 { "tx_unicast_pkts", NFP_MAC_STATS_TX_UNICAST_PKTS, },
158 { "tx_multicast_pkts", NFP_MAC_STATS_TX_MULTICAST_PKTS, },
159 { "tx_pkts_64_octets", NFP_MAC_STATS_TX_PKTS_64_OCTETS, },
160 { "tx_pkts_65_to_127_octets",
161 NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS, },
162 { "tx_pkts_128_to_255_octets",
163 NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS, },
164 { "tx_pkts_256_to_511_octets",
165 NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS, },
166 { "tx_pkts_512_to_1023_octets",
167 NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS, },
168 { "tx_pkts_1024_to_1518_octets",
169 NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS, },
170 { "tx_pkts_1519_to_max_octets",
171 NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS, },
172 { "tx_pause_frames_class0", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0, },
173 { "tx_pause_frames_class1", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1, },
174 { "tx_pause_frames_class2", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2, },
175 { "tx_pause_frames_class3", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3, },
176 { "tx_pause_frames_class4", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4, },
177 { "tx_pause_frames_class5", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5, },
178 { "tx_pause_frames_class6", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6, },
179 { "tx_pause_frames_class7", NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7, },
182 #define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)
183 #define NN_ET_SWITCH_STATS_LEN 9
184 #define NN_ET_RVEC_GATHER_STATS 7
186 static void nfp_net_get_nspinfo(struct nfp_app *app, char *version)
193 nsp = nfp_nsp_open(app->cpp);
197 snprintf(version, ETHTOOL_FWVERS_LEN, "%hu.%hu",
198 nfp_nsp_get_abi_ver_major(nsp),
199 nfp_nsp_get_abi_ver_minor(nsp));
205 nfp_get_drvinfo(struct nfp_app *app, struct pci_dev *pdev,
206 const char *vnic_version, struct ethtool_drvinfo *drvinfo)
208 char nsp_version[ETHTOOL_FWVERS_LEN] = {};
210 strlcpy(drvinfo->driver, pdev->driver->name, sizeof(drvinfo->driver));
211 strlcpy(drvinfo->version, nfp_driver_version, sizeof(drvinfo->version));
213 nfp_net_get_nspinfo(app, nsp_version);
214 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
215 "%s %s %s %s", vnic_version, nsp_version,
216 nfp_app_mip_name(app), nfp_app_name(app));
220 nfp_net_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
222 char vnic_version[ETHTOOL_FWVERS_LEN] = {};
223 struct nfp_net *nn = netdev_priv(netdev);
225 snprintf(vnic_version, sizeof(vnic_version), "%d.%d.%d.%d",
226 nn->fw_ver.resv, nn->fw_ver.class,
227 nn->fw_ver.major, nn->fw_ver.minor);
228 strlcpy(drvinfo->bus_info, pci_name(nn->pdev),
229 sizeof(drvinfo->bus_info));
231 nfp_get_drvinfo(nn->app, nn->pdev, vnic_version, drvinfo);
235 nfp_app_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
239 app = nfp_app_from_netdev(netdev);
243 nfp_get_drvinfo(app, app->pdev, "*", drvinfo);
247 * nfp_net_get_link_ksettings - Get Link Speed settings
248 * @netdev: network interface device structure
249 * @cmd: ethtool command
251 * Reports speed settings based on info in the BAR provided by the fw.
254 nfp_net_get_link_ksettings(struct net_device *netdev,
255 struct ethtool_link_ksettings *cmd)
257 static const u32 ls_to_ethtool[] = {
258 [NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED] = 0,
259 [NFP_NET_CFG_STS_LINK_RATE_UNKNOWN] = SPEED_UNKNOWN,
260 [NFP_NET_CFG_STS_LINK_RATE_1G] = SPEED_1000,
261 [NFP_NET_CFG_STS_LINK_RATE_10G] = SPEED_10000,
262 [NFP_NET_CFG_STS_LINK_RATE_25G] = SPEED_25000,
263 [NFP_NET_CFG_STS_LINK_RATE_40G] = SPEED_40000,
264 [NFP_NET_CFG_STS_LINK_RATE_50G] = SPEED_50000,
265 [NFP_NET_CFG_STS_LINK_RATE_100G] = SPEED_100000,
267 struct nfp_eth_table_port *eth_port;
268 struct nfp_port *port;
272 /* Init to unknowns */
273 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
274 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
275 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
276 cmd->base.port = PORT_OTHER;
277 cmd->base.speed = SPEED_UNKNOWN;
278 cmd->base.duplex = DUPLEX_UNKNOWN;
280 port = nfp_port_from_netdev(netdev);
281 eth_port = nfp_port_get_eth_port(port);
283 cmd->base.autoneg = eth_port->aneg != NFP_ANEG_DISABLED ?
284 AUTONEG_ENABLE : AUTONEG_DISABLE;
286 if (!netif_carrier_ok(netdev))
289 /* Use link speed from ETH table if available, otherwise try the BAR */
291 cmd->base.port = eth_port->port_type;
292 cmd->base.speed = eth_port->speed;
293 cmd->base.duplex = DUPLEX_FULL;
297 if (!nfp_netdev_is_nfp_net(netdev))
299 nn = netdev_priv(netdev);
301 sts = nn_readl(nn, NFP_NET_CFG_STS);
303 ls = FIELD_GET(NFP_NET_CFG_STS_LINK_RATE, sts);
304 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNSUPPORTED)
307 if (ls == NFP_NET_CFG_STS_LINK_RATE_UNKNOWN ||
308 ls >= ARRAY_SIZE(ls_to_ethtool))
311 cmd->base.speed = ls_to_ethtool[ls];
312 cmd->base.duplex = DUPLEX_FULL;
318 nfp_net_set_link_ksettings(struct net_device *netdev,
319 const struct ethtool_link_ksettings *cmd)
321 struct nfp_eth_table_port *eth_port;
322 struct nfp_port *port;
326 port = nfp_port_from_netdev(netdev);
327 eth_port = __nfp_port_get_eth_port(port);
331 if (netif_running(netdev)) {
332 netdev_warn(netdev, "Changing settings not allowed on an active interface. It may cause the port to be disabled until reboot.\n");
336 nsp = nfp_eth_config_start(port->app->cpp, eth_port->index);
340 err = __nfp_eth_set_aneg(nsp, cmd->base.autoneg == AUTONEG_ENABLE ?
341 NFP_ANEG_AUTO : NFP_ANEG_DISABLED);
344 if (cmd->base.speed != SPEED_UNKNOWN) {
345 u32 speed = cmd->base.speed / eth_port->lanes;
347 err = __nfp_eth_set_speed(nsp, speed);
352 err = nfp_eth_config_commit_end(nsp);
354 return 0; /* no change */
356 nfp_net_refresh_port_table(port);
361 nfp_eth_config_cleanup_end(nsp);
365 static void nfp_net_get_ringparam(struct net_device *netdev,
366 struct ethtool_ringparam *ring)
368 struct nfp_net *nn = netdev_priv(netdev);
370 ring->rx_max_pending = NFP_NET_MAX_RX_DESCS;
371 ring->tx_max_pending = NFP_NET_MAX_TX_DESCS;
372 ring->rx_pending = nn->dp.rxd_cnt;
373 ring->tx_pending = nn->dp.txd_cnt;
376 static int nfp_net_set_ring_size(struct nfp_net *nn, u32 rxd_cnt, u32 txd_cnt)
378 struct nfp_net_dp *dp;
380 dp = nfp_net_clone_dp(nn);
384 dp->rxd_cnt = rxd_cnt;
385 dp->txd_cnt = txd_cnt;
387 return nfp_net_ring_reconfig(nn, dp, NULL);
390 static int nfp_net_set_ringparam(struct net_device *netdev,
391 struct ethtool_ringparam *ring)
393 struct nfp_net *nn = netdev_priv(netdev);
394 u32 rxd_cnt, txd_cnt;
396 /* We don't have separate queues/rings for small/large frames. */
397 if (ring->rx_mini_pending || ring->rx_jumbo_pending)
400 /* Round up to supported values */
401 rxd_cnt = roundup_pow_of_two(ring->rx_pending);
402 txd_cnt = roundup_pow_of_two(ring->tx_pending);
404 if (rxd_cnt < NFP_NET_MIN_RX_DESCS || rxd_cnt > NFP_NET_MAX_RX_DESCS ||
405 txd_cnt < NFP_NET_MIN_TX_DESCS || txd_cnt > NFP_NET_MAX_TX_DESCS)
408 if (nn->dp.rxd_cnt == rxd_cnt && nn->dp.txd_cnt == txd_cnt)
411 nn_dbg(nn, "Change ring size: RxQ %u->%u, TxQ %u->%u\n",
412 nn->dp.rxd_cnt, rxd_cnt, nn->dp.txd_cnt, txd_cnt);
414 return nfp_net_set_ring_size(nn, rxd_cnt, txd_cnt);
417 static __printf(2, 3) u8 *nfp_pr_et(u8 *data, const char *fmt, ...)
422 vsnprintf(data, ETH_GSTRING_LEN, fmt, args);
425 return data + ETH_GSTRING_LEN;
428 static unsigned int nfp_vnic_get_sw_stats_count(struct net_device *netdev)
430 struct nfp_net *nn = netdev_priv(netdev);
432 return NN_ET_RVEC_GATHER_STATS + nn->dp.num_r_vecs * 3;
435 static u8 *nfp_vnic_get_sw_stats_strings(struct net_device *netdev, u8 *data)
437 struct nfp_net *nn = netdev_priv(netdev);
440 for (i = 0; i < nn->dp.num_r_vecs; i++) {
441 data = nfp_pr_et(data, "rvec_%u_rx_pkts", i);
442 data = nfp_pr_et(data, "rvec_%u_tx_pkts", i);
443 data = nfp_pr_et(data, "rvec_%u_tx_busy", i);
446 data = nfp_pr_et(data, "hw_rx_csum_ok");
447 data = nfp_pr_et(data, "hw_rx_csum_inner_ok");
448 data = nfp_pr_et(data, "hw_rx_csum_err");
449 data = nfp_pr_et(data, "hw_tx_csum");
450 data = nfp_pr_et(data, "hw_tx_inner_csum");
451 data = nfp_pr_et(data, "tx_gather");
452 data = nfp_pr_et(data, "tx_lso");
457 static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
459 u64 gathered_stats[NN_ET_RVEC_GATHER_STATS] = {};
460 struct nfp_net *nn = netdev_priv(netdev);
461 u64 tmp[NN_ET_RVEC_GATHER_STATS];
464 for (i = 0; i < nn->dp.num_r_vecs; i++) {
468 start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync);
469 data[0] = nn->r_vecs[i].rx_pkts;
470 tmp[0] = nn->r_vecs[i].hw_csum_rx_ok;
471 tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok;
472 tmp[2] = nn->r_vecs[i].hw_csum_rx_error;
473 } while (u64_stats_fetch_retry(&nn->r_vecs[i].rx_sync, start));
476 start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync);
477 data[1] = nn->r_vecs[i].tx_pkts;
478 data[2] = nn->r_vecs[i].tx_busy;
479 tmp[3] = nn->r_vecs[i].hw_csum_tx;
480 tmp[4] = nn->r_vecs[i].hw_csum_tx_inner;
481 tmp[5] = nn->r_vecs[i].tx_gather;
482 tmp[6] = nn->r_vecs[i].tx_lso;
483 } while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));
487 for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++)
488 gathered_stats[j] += tmp[j];
491 for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++)
492 *data++ = gathered_stats[j];
498 nfp_vnic_get_hw_stats_count(unsigned int rx_rings, unsigned int tx_rings)
500 return NN_ET_GLOBAL_STATS_LEN + (rx_rings + tx_rings) * 2;
504 nfp_vnic_get_hw_stats_strings(u8 *data, unsigned int rx_rings,
505 unsigned int tx_rings, bool repr)
509 BUILD_BUG_ON(NN_ET_GLOBAL_STATS_LEN < NN_ET_SWITCH_STATS_LEN * 2);
510 /* If repr is true first add SWITCH_STATS_LEN and then subtract it
511 * effectively swapping the RX and TX statistics (giving us the RX
512 * and TX from perspective of the switch).
514 swap_off = repr * NN_ET_SWITCH_STATS_LEN;
516 for (i = 0; i < NN_ET_SWITCH_STATS_LEN; i++)
517 data = nfp_pr_et(data, nfp_net_et_stats[i + swap_off].name);
519 for (i = NN_ET_SWITCH_STATS_LEN; i < NN_ET_SWITCH_STATS_LEN * 2; i++)
520 data = nfp_pr_et(data, nfp_net_et_stats[i - swap_off].name);
522 for (i = NN_ET_SWITCH_STATS_LEN * 2; i < NN_ET_GLOBAL_STATS_LEN; i++)
523 data = nfp_pr_et(data, nfp_net_et_stats[i].name);
525 for (i = 0; i < tx_rings; i++) {
526 data = nfp_pr_et(data, "txq_%u_pkts", i);
527 data = nfp_pr_et(data, "txq_%u_bytes", i);
530 for (i = 0; i < rx_rings; i++) {
531 data = nfp_pr_et(data, "rxq_%u_pkts", i);
532 data = nfp_pr_et(data, "rxq_%u_bytes", i);
539 nfp_vnic_get_hw_stats(u64 *data, u8 __iomem *mem,
540 unsigned int rx_rings, unsigned int tx_rings)
544 for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++)
545 *data++ = readq(mem + nfp_net_et_stats[i].off);
547 for (i = 0; i < tx_rings; i++) {
548 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i));
549 *data++ = readq(mem + NFP_NET_CFG_TXR_STATS(i) + 8);
552 for (i = 0; i < rx_rings; i++) {
553 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i));
554 *data++ = readq(mem + NFP_NET_CFG_RXR_STATS(i) + 8);
560 static unsigned int nfp_mac_get_stats_count(struct net_device *netdev)
562 struct nfp_port *port;
564 port = nfp_port_from_netdev(netdev);
565 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
568 return ARRAY_SIZE(nfp_mac_et_stats);
571 static u8 *nfp_mac_get_stats_strings(struct net_device *netdev, u8 *data)
573 struct nfp_port *port;
576 port = nfp_port_from_netdev(netdev);
577 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
580 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
581 data = nfp_pr_et(data, "mac.%s", nfp_mac_et_stats[i].name);
586 static u64 *nfp_mac_get_stats(struct net_device *netdev, u64 *data)
588 struct nfp_port *port;
591 port = nfp_port_from_netdev(netdev);
592 if (!__nfp_port_get_eth_port(port) || !port->eth_stats)
595 for (i = 0; i < ARRAY_SIZE(nfp_mac_et_stats); i++)
596 *data++ = readq(port->eth_stats + nfp_mac_et_stats[i].off);
601 static void nfp_net_get_strings(struct net_device *netdev,
602 u32 stringset, u8 *data)
604 struct nfp_net *nn = netdev_priv(netdev);
608 data = nfp_vnic_get_sw_stats_strings(netdev, data);
609 data = nfp_vnic_get_hw_stats_strings(data, nn->dp.num_rx_rings,
612 data = nfp_mac_get_stats_strings(netdev, data);
618 nfp_net_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
621 struct nfp_net *nn = netdev_priv(netdev);
623 data = nfp_vnic_get_sw_stats(netdev, data);
624 data = nfp_vnic_get_hw_stats(data, nn->dp.ctrl_bar,
625 nn->dp.num_rx_rings, nn->dp.num_tx_rings);
626 data = nfp_mac_get_stats(netdev, data);
629 static int nfp_net_get_sset_count(struct net_device *netdev, int sset)
631 struct nfp_net *nn = netdev_priv(netdev);
635 return nfp_vnic_get_sw_stats_count(netdev) +
636 nfp_vnic_get_hw_stats_count(nn->dp.num_rx_rings,
637 nn->dp.num_tx_rings) +
638 nfp_mac_get_stats_count(netdev);
644 static void nfp_port_get_strings(struct net_device *netdev,
645 u32 stringset, u8 *data)
647 struct nfp_port *port = nfp_port_from_netdev(netdev);
651 if (nfp_port_is_vnic(port))
652 data = nfp_vnic_get_hw_stats_strings(data, 0, 0, true);
654 data = nfp_mac_get_stats_strings(netdev, data);
660 nfp_port_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
663 struct nfp_port *port = nfp_port_from_netdev(netdev);
665 if (nfp_port_is_vnic(port))
666 data = nfp_vnic_get_hw_stats(data, port->vnic, 0, 0);
668 data = nfp_mac_get_stats(netdev, data);
671 static int nfp_port_get_sset_count(struct net_device *netdev, int sset)
673 struct nfp_port *port = nfp_port_from_netdev(netdev);
678 if (nfp_port_is_vnic(port))
679 count = nfp_vnic_get_hw_stats_count(0, 0);
681 count = nfp_mac_get_stats_count(netdev);
688 /* RX network flow classification (RSS, filters, etc)
690 static u32 ethtool_flow_to_nfp_flag(u32 flow_type)
692 static const u32 xlate_ethtool_to_nfp[IPV6_FLOW + 1] = {
693 [TCP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_TCP,
694 [TCP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_TCP,
695 [UDP_V4_FLOW] = NFP_NET_CFG_RSS_IPV4_UDP,
696 [UDP_V6_FLOW] = NFP_NET_CFG_RSS_IPV6_UDP,
697 [IPV4_FLOW] = NFP_NET_CFG_RSS_IPV4,
698 [IPV6_FLOW] = NFP_NET_CFG_RSS_IPV6,
701 if (flow_type >= ARRAY_SIZE(xlate_ethtool_to_nfp))
704 return xlate_ethtool_to_nfp[flow_type];
707 static int nfp_net_get_rss_hash_opts(struct nfp_net *nn,
708 struct ethtool_rxnfc *cmd)
714 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
717 nfp_rss_flag = ethtool_flow_to_nfp_flag(cmd->flow_type);
721 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
722 if (nn->rss_cfg & nfp_rss_flag)
723 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
728 static int nfp_net_get_rxnfc(struct net_device *netdev,
729 struct ethtool_rxnfc *cmd, u32 *rule_locs)
731 struct nfp_net *nn = netdev_priv(netdev);
734 case ETHTOOL_GRXRINGS:
735 cmd->data = nn->dp.num_rx_rings;
738 return nfp_net_get_rss_hash_opts(nn, cmd);
744 static int nfp_net_set_rss_hash_opt(struct nfp_net *nn,
745 struct ethtool_rxnfc *nfc)
747 u32 new_rss_cfg = nn->rss_cfg;
751 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
754 /* RSS only supports IP SA/DA and L4 src/dst ports */
755 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
756 RXH_L4_B_0_1 | RXH_L4_B_2_3))
759 /* We need at least the IP SA/DA fields for hashing */
760 if (!(nfc->data & RXH_IP_SRC) ||
761 !(nfc->data & RXH_IP_DST))
764 nfp_rss_flag = ethtool_flow_to_nfp_flag(nfc->flow_type);
768 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
770 new_rss_cfg &= ~nfp_rss_flag;
772 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
773 new_rss_cfg |= nfp_rss_flag;
779 new_rss_cfg |= FIELD_PREP(NFP_NET_CFG_RSS_HFUNC, nn->rss_hfunc);
780 new_rss_cfg |= NFP_NET_CFG_RSS_MASK;
782 if (new_rss_cfg == nn->rss_cfg)
785 writel(new_rss_cfg, nn->dp.ctrl_bar + NFP_NET_CFG_RSS_CTRL);
786 err = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
790 nn->rss_cfg = new_rss_cfg;
792 nn_dbg(nn, "Changed RSS config to 0x%x\n", nn->rss_cfg);
796 static int nfp_net_set_rxnfc(struct net_device *netdev,
797 struct ethtool_rxnfc *cmd)
799 struct nfp_net *nn = netdev_priv(netdev);
803 return nfp_net_set_rss_hash_opt(nn, cmd);
809 static u32 nfp_net_get_rxfh_indir_size(struct net_device *netdev)
811 struct nfp_net *nn = netdev_priv(netdev);
813 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
816 return ARRAY_SIZE(nn->rss_itbl);
819 static u32 nfp_net_get_rxfh_key_size(struct net_device *netdev)
821 struct nfp_net *nn = netdev_priv(netdev);
823 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
826 return nfp_net_rss_key_sz(nn);
829 static int nfp_net_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
832 struct nfp_net *nn = netdev_priv(netdev);
835 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY))
839 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
840 indir[i] = nn->rss_itbl[i];
842 memcpy(key, nn->rss_key, nfp_net_rss_key_sz(nn));
844 *hfunc = nn->rss_hfunc;
845 if (*hfunc >= 1 << ETH_RSS_HASH_FUNCS_COUNT)
846 *hfunc = ETH_RSS_HASH_UNKNOWN;
852 static int nfp_net_set_rxfh(struct net_device *netdev,
853 const u32 *indir, const u8 *key,
856 struct nfp_net *nn = netdev_priv(netdev);
859 if (!(nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) ||
860 !(hfunc == ETH_RSS_HASH_NO_CHANGE || hfunc == nn->rss_hfunc))
867 memcpy(nn->rss_key, key, nfp_net_rss_key_sz(nn));
868 nfp_net_rss_write_key(nn);
871 for (i = 0; i < ARRAY_SIZE(nn->rss_itbl); i++)
872 nn->rss_itbl[i] = indir[i];
874 nfp_net_rss_write_itbl(nn);
877 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_RSS);
880 /* Dump BAR registers
882 static int nfp_net_get_regs_len(struct net_device *netdev)
884 return NFP_NET_CFG_BAR_SZ;
887 static void nfp_net_get_regs(struct net_device *netdev,
888 struct ethtool_regs *regs, void *p)
890 struct nfp_net *nn = netdev_priv(netdev);
894 regs->version = nn_readl(nn, NFP_NET_CFG_VERSION);
896 for (i = 0; i < NFP_NET_CFG_BAR_SZ / sizeof(u32); i++)
897 regs_buf[i] = readl(nn->dp.ctrl_bar + (i * sizeof(u32)));
900 static int nfp_net_get_coalesce(struct net_device *netdev,
901 struct ethtool_coalesce *ec)
903 struct nfp_net *nn = netdev_priv(netdev);
905 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
908 ec->rx_coalesce_usecs = nn->rx_coalesce_usecs;
909 ec->rx_max_coalesced_frames = nn->rx_coalesce_max_frames;
910 ec->tx_coalesce_usecs = nn->tx_coalesce_usecs;
911 ec->tx_max_coalesced_frames = nn->tx_coalesce_max_frames;
919 nfp_dump_nsp_diag(struct nfp_app *app, struct ethtool_dump *dump, void *buffer)
921 struct nfp_resource *res;
928 dump->flag = NFP_DUMP_NSP_DIAG;
930 res = nfp_resource_acquire(app->cpp, NFP_RESOURCE_NSP_DIAG);
935 if (dump->len != nfp_resource_size(res)) {
940 ret = nfp_cpp_read(app->cpp, nfp_resource_cpp_id(res),
941 nfp_resource_address(res),
943 if (ret != dump->len)
944 ret = ret < 0 ? ret : -EIO;
948 dump->len = nfp_resource_size(res);
952 nfp_resource_release(res);
957 static int nfp_app_set_dump(struct net_device *netdev, struct ethtool_dump *val)
959 struct nfp_app *app = nfp_app_from_netdev(netdev);
964 if (val->flag != NFP_DUMP_NSP_DIAG)
971 nfp_app_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
973 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, NULL);
977 nfp_app_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
980 return nfp_dump_nsp_diag(nfp_app_from_netdev(netdev), dump, buffer);
983 static int nfp_net_set_coalesce(struct net_device *netdev,
984 struct ethtool_coalesce *ec)
986 struct nfp_net *nn = netdev_priv(netdev);
989 if (ec->rx_coalesce_usecs_irq ||
990 ec->rx_max_coalesced_frames_irq ||
991 ec->tx_coalesce_usecs_irq ||
992 ec->tx_max_coalesced_frames_irq ||
993 ec->stats_block_coalesce_usecs ||
994 ec->use_adaptive_rx_coalesce ||
995 ec->use_adaptive_tx_coalesce ||
997 ec->rx_coalesce_usecs_low ||
998 ec->rx_max_coalesced_frames_low ||
999 ec->tx_coalesce_usecs_low ||
1000 ec->tx_max_coalesced_frames_low ||
1001 ec->pkt_rate_high ||
1002 ec->rx_coalesce_usecs_high ||
1003 ec->rx_max_coalesced_frames_high ||
1004 ec->tx_coalesce_usecs_high ||
1005 ec->tx_max_coalesced_frames_high ||
1006 ec->rate_sample_interval)
1009 /* Compute factor used to convert coalesce '_usecs' parameters to
1010 * ME timestamp ticks. There are 16 ME clock cycles for each timestamp
1013 factor = nn->me_freq_mhz / 16;
1015 /* Each pair of (usecs, max_frames) fields specifies that interrupts
1016 * should be coalesced until
1017 * (usecs > 0 && time_since_first_completion >= usecs) ||
1018 * (max_frames > 0 && completed_frames >= max_frames)
1020 * It is illegal to set both usecs and max_frames to zero as this would
1021 * cause interrupts to never be generated. To disable coalescing, set
1022 * usecs = 0 and max_frames = 1.
1024 * Some implementations ignore the value of max_frames and use the
1025 * condition time_since_first_completion >= usecs
1028 if (!(nn->cap & NFP_NET_CFG_CTRL_IRQMOD))
1031 /* ensure valid configuration */
1032 if (!ec->rx_coalesce_usecs && !ec->rx_max_coalesced_frames)
1035 if (!ec->tx_coalesce_usecs && !ec->tx_max_coalesced_frames)
1038 if (ec->rx_coalesce_usecs * factor >= ((1 << 16) - 1))
1041 if (ec->tx_coalesce_usecs * factor >= ((1 << 16) - 1))
1044 if (ec->rx_max_coalesced_frames >= ((1 << 16) - 1))
1047 if (ec->tx_max_coalesced_frames >= ((1 << 16) - 1))
1050 /* configuration is valid */
1051 nn->rx_coalesce_usecs = ec->rx_coalesce_usecs;
1052 nn->rx_coalesce_max_frames = ec->rx_max_coalesced_frames;
1053 nn->tx_coalesce_usecs = ec->tx_coalesce_usecs;
1054 nn->tx_coalesce_max_frames = ec->tx_max_coalesced_frames;
1056 /* write configuration to device */
1057 nfp_net_coalesce_write_cfg(nn);
1058 return nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_IRQMOD);
1061 static void nfp_net_get_channels(struct net_device *netdev,
1062 struct ethtool_channels *channel)
1064 struct nfp_net *nn = netdev_priv(netdev);
1065 unsigned int num_tx_rings;
1067 num_tx_rings = nn->dp.num_tx_rings;
1068 if (nn->dp.xdp_prog)
1069 num_tx_rings -= nn->dp.num_rx_rings;
1071 channel->max_rx = min(nn->max_rx_rings, nn->max_r_vecs);
1072 channel->max_tx = min(nn->max_tx_rings, nn->max_r_vecs);
1073 channel->max_combined = min(channel->max_rx, channel->max_tx);
1074 channel->max_other = NFP_NET_NON_Q_VECTORS;
1075 channel->combined_count = min(nn->dp.num_rx_rings, num_tx_rings);
1076 channel->rx_count = nn->dp.num_rx_rings - channel->combined_count;
1077 channel->tx_count = num_tx_rings - channel->combined_count;
1078 channel->other_count = NFP_NET_NON_Q_VECTORS;
1081 static int nfp_net_set_num_rings(struct nfp_net *nn, unsigned int total_rx,
1082 unsigned int total_tx)
1084 struct nfp_net_dp *dp;
1086 dp = nfp_net_clone_dp(nn);
1090 dp->num_rx_rings = total_rx;
1091 dp->num_tx_rings = total_tx;
1092 /* nfp_net_check_config() will catch num_tx_rings > nn->max_tx_rings */
1094 dp->num_tx_rings += total_rx;
1096 return nfp_net_ring_reconfig(nn, dp, NULL);
1099 static int nfp_net_set_channels(struct net_device *netdev,
1100 struct ethtool_channels *channel)
1102 struct nfp_net *nn = netdev_priv(netdev);
1103 unsigned int total_rx, total_tx;
1105 /* Reject unsupported */
1106 if (!channel->combined_count ||
1107 channel->other_count != NFP_NET_NON_Q_VECTORS ||
1108 (channel->rx_count && channel->tx_count))
1111 total_rx = channel->combined_count + channel->rx_count;
1112 total_tx = channel->combined_count + channel->tx_count;
1114 if (total_rx > min(nn->max_rx_rings, nn->max_r_vecs) ||
1115 total_tx > min(nn->max_tx_rings, nn->max_r_vecs))
1118 return nfp_net_set_num_rings(nn, total_rx, total_tx);
1121 static const struct ethtool_ops nfp_net_ethtool_ops = {
1122 .get_drvinfo = nfp_net_get_drvinfo,
1123 .get_link = ethtool_op_get_link,
1124 .get_ringparam = nfp_net_get_ringparam,
1125 .set_ringparam = nfp_net_set_ringparam,
1126 .get_strings = nfp_net_get_strings,
1127 .get_ethtool_stats = nfp_net_get_stats,
1128 .get_sset_count = nfp_net_get_sset_count,
1129 .get_rxnfc = nfp_net_get_rxnfc,
1130 .set_rxnfc = nfp_net_set_rxnfc,
1131 .get_rxfh_indir_size = nfp_net_get_rxfh_indir_size,
1132 .get_rxfh_key_size = nfp_net_get_rxfh_key_size,
1133 .get_rxfh = nfp_net_get_rxfh,
1134 .set_rxfh = nfp_net_set_rxfh,
1135 .get_regs_len = nfp_net_get_regs_len,
1136 .get_regs = nfp_net_get_regs,
1137 .set_dump = nfp_app_set_dump,
1138 .get_dump_flag = nfp_app_get_dump_flag,
1139 .get_dump_data = nfp_app_get_dump_data,
1140 .get_coalesce = nfp_net_get_coalesce,
1141 .set_coalesce = nfp_net_set_coalesce,
1142 .get_channels = nfp_net_get_channels,
1143 .set_channels = nfp_net_set_channels,
1144 .get_link_ksettings = nfp_net_get_link_ksettings,
1145 .set_link_ksettings = nfp_net_set_link_ksettings,
1148 const struct ethtool_ops nfp_port_ethtool_ops = {
1149 .get_drvinfo = nfp_app_get_drvinfo,
1150 .get_link = ethtool_op_get_link,
1151 .get_strings = nfp_port_get_strings,
1152 .get_ethtool_stats = nfp_port_get_stats,
1153 .get_sset_count = nfp_port_get_sset_count,
1154 .set_dump = nfp_app_set_dump,
1155 .get_dump_flag = nfp_app_get_dump_flag,
1156 .get_dump_data = nfp_app_get_dump_data,
1159 void nfp_net_set_ethtool_ops(struct net_device *netdev)
1161 netdev->ethtool_ops = &nfp_net_ethtool_ops;