1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright IBM Corp. 2018
6 #define KMSG_COMPONENT "qeth"
7 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
9 #include <linux/ethtool.h>
10 #include "qeth_core.h"
13 #define QETH_TXQ_STAT(_name, _stat) { \
15 .offset = offsetof(struct qeth_out_q_stats, _stat) \
18 #define QETH_CARD_STAT(_name, _stat) { \
20 .offset = offsetof(struct qeth_card_stats, _stat) \
24 char name[ETH_GSTRING_LEN];
28 static const struct qeth_stats txq_stats[] = {
29 QETH_TXQ_STAT("IO buffers", bufs),
30 QETH_TXQ_STAT("IO buffer elements", buf_elements),
31 QETH_TXQ_STAT("packed IO buffers", bufs_pack),
32 QETH_TXQ_STAT("skbs", tx_packets),
33 QETH_TXQ_STAT("packed skbs", skbs_pack),
34 QETH_TXQ_STAT("SG skbs", skbs_sg),
35 QETH_TXQ_STAT("HW csum skbs", skbs_csum),
36 QETH_TXQ_STAT("TSO skbs", skbs_tso),
37 QETH_TXQ_STAT("linearized skbs", skbs_linearized),
38 QETH_TXQ_STAT("linearized+error skbs", skbs_linearized_fail),
39 QETH_TXQ_STAT("TSO bytes", tso_bytes),
40 QETH_TXQ_STAT("Packing mode switches", packing_mode_switch),
41 QETH_TXQ_STAT("Queue stopped", stopped),
42 QETH_TXQ_STAT("Completion yield", completion_yield),
43 QETH_TXQ_STAT("Completion timer", completion_timer),
46 static const struct qeth_stats card_stats[] = {
47 QETH_CARD_STAT("rx0 IO buffers", rx_bufs),
48 QETH_CARD_STAT("rx0 HW csum skbs", rx_skb_csum),
49 QETH_CARD_STAT("rx0 SG skbs", rx_sg_skbs),
50 QETH_CARD_STAT("rx0 SG page frags", rx_sg_frags),
51 QETH_CARD_STAT("rx0 SG page allocs", rx_sg_alloc_page),
52 QETH_CARD_STAT("rx0 dropped, no memory", rx_dropped_nomem),
53 QETH_CARD_STAT("rx0 dropped, bad format", rx_dropped_notsupp),
54 QETH_CARD_STAT("rx0 dropped, runt", rx_dropped_runt),
57 #define TXQ_STATS_LEN ARRAY_SIZE(txq_stats)
58 #define CARD_STATS_LEN ARRAY_SIZE(card_stats)
60 static void qeth_add_stat_data(u64 **dst, void *src,
61 const struct qeth_stats stats[],
67 for (i = 0; i < size; i++) {
68 stat = (char *)src + stats[i].offset;
74 static void qeth_add_stat_strings(u8 **data, const char *prefix,
75 const struct qeth_stats stats[],
80 for (i = 0; i < size; i++) {
81 snprintf(*data, ETH_GSTRING_LEN, "%s%s", prefix, stats[i].name);
82 *data += ETH_GSTRING_LEN;
86 static int qeth_get_sset_count(struct net_device *dev, int stringset)
88 struct qeth_card *card = dev->ml_priv;
92 return CARD_STATS_LEN +
93 card->qdio.no_out_queues * TXQ_STATS_LEN;
99 static void qeth_get_ethtool_stats(struct net_device *dev,
100 struct ethtool_stats *stats, u64 *data)
102 struct qeth_card *card = dev->ml_priv;
105 qeth_add_stat_data(&data, &card->stats, card_stats, CARD_STATS_LEN);
106 for (i = 0; i < card->qdio.no_out_queues; i++)
107 qeth_add_stat_data(&data, &card->qdio.out_qs[i]->stats,
108 txq_stats, TXQ_STATS_LEN);
111 static void qeth_get_ringparam(struct net_device *dev,
112 struct ethtool_ringparam *param)
114 struct qeth_card *card = dev->ml_priv;
116 param->rx_max_pending = QDIO_MAX_BUFFERS_PER_Q;
117 param->rx_mini_max_pending = 0;
118 param->rx_jumbo_max_pending = 0;
119 param->tx_max_pending = QDIO_MAX_BUFFERS_PER_Q;
121 param->rx_pending = card->qdio.in_buf_pool.buf_count;
122 param->rx_mini_pending = 0;
123 param->rx_jumbo_pending = 0;
124 param->tx_pending = QDIO_MAX_BUFFERS_PER_Q;
127 static void qeth_get_strings(struct net_device *dev, u32 stringset, u8 *data)
129 struct qeth_card *card = dev->ml_priv;
130 char prefix[ETH_GSTRING_LEN] = "";
135 qeth_add_stat_strings(&data, prefix, card_stats,
137 for (i = 0; i < card->qdio.no_out_queues; i++) {
138 snprintf(prefix, ETH_GSTRING_LEN, "tx%u ", i);
139 qeth_add_stat_strings(&data, prefix, txq_stats,
149 static void qeth_get_drvinfo(struct net_device *dev,
150 struct ethtool_drvinfo *info)
152 struct qeth_card *card = dev->ml_priv;
154 strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3",
155 sizeof(info->driver));
156 strlcpy(info->version, "1.0", sizeof(info->version));
157 strlcpy(info->fw_version, card->info.mcl_level,
158 sizeof(info->fw_version));
159 snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
160 CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
163 static void qeth_get_channels(struct net_device *dev,
164 struct ethtool_channels *channels)
166 struct qeth_card *card = dev->ml_priv;
168 channels->max_rx = dev->num_rx_queues;
169 channels->max_tx = card->qdio.no_out_queues;
170 channels->max_other = 0;
171 channels->max_combined = 0;
172 channels->rx_count = dev->real_num_rx_queues;
173 channels->tx_count = dev->real_num_tx_queues;
174 channels->other_count = 0;
175 channels->combined_count = 0;
178 /* Helper function to fill 'advertising' and 'supported' which are the same. */
179 /* Autoneg and full-duplex are supported and advertised unconditionally. */
180 /* Always advertise and support all speeds up to specified, and only one */
181 /* specified port type. */
182 static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd,
183 int maxspeed, int porttype)
185 ethtool_link_ksettings_zero_link_mode(cmd, supported);
186 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
187 ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising);
189 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
190 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
194 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
195 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
198 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
199 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
202 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
203 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
207 /* partially does fall through, to also select lower speeds */
210 ethtool_link_ksettings_add_link_mode(cmd, supported,
212 ethtool_link_ksettings_add_link_mode(cmd, advertising,
216 ethtool_link_ksettings_add_link_mode(cmd, supported,
218 ethtool_link_ksettings_add_link_mode(cmd, advertising,
222 ethtool_link_ksettings_add_link_mode(cmd, supported,
224 ethtool_link_ksettings_add_link_mode(cmd, advertising,
226 ethtool_link_ksettings_add_link_mode(cmd, supported,
228 ethtool_link_ksettings_add_link_mode(cmd, advertising,
232 ethtool_link_ksettings_add_link_mode(cmd, supported,
234 ethtool_link_ksettings_add_link_mode(cmd, advertising,
236 ethtool_link_ksettings_add_link_mode(cmd, supported,
238 ethtool_link_ksettings_add_link_mode(cmd, advertising,
242 ethtool_link_ksettings_add_link_mode(cmd, supported,
244 ethtool_link_ksettings_add_link_mode(cmd, advertising,
246 ethtool_link_ksettings_add_link_mode(cmd, supported,
248 ethtool_link_ksettings_add_link_mode(cmd, advertising,
252 ethtool_link_ksettings_add_link_mode(cmd, supported,
254 ethtool_link_ksettings_add_link_mode(cmd, advertising,
256 ethtool_link_ksettings_add_link_mode(cmd, supported,
258 ethtool_link_ksettings_add_link_mode(cmd, advertising,
265 static int qeth_get_link_ksettings(struct net_device *netdev,
266 struct ethtool_link_ksettings *cmd)
268 struct qeth_card *card = netdev->ml_priv;
269 enum qeth_link_types link_type;
270 struct carrier_info carrier_info;
273 if (IS_IQD(card) || IS_VM_NIC(card))
274 link_type = QETH_LINK_TYPE_10GBIT_ETH;
276 link_type = card->info.link_type;
278 cmd->base.duplex = DUPLEX_FULL;
279 cmd->base.autoneg = AUTONEG_ENABLE;
280 cmd->base.phy_address = 0;
281 cmd->base.mdio_support = 0;
282 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
283 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
286 case QETH_LINK_TYPE_FAST_ETH:
287 case QETH_LINK_TYPE_LANE_ETH100:
288 cmd->base.speed = SPEED_100;
289 cmd->base.port = PORT_TP;
291 case QETH_LINK_TYPE_GBIT_ETH:
292 case QETH_LINK_TYPE_LANE_ETH1000:
293 cmd->base.speed = SPEED_1000;
294 cmd->base.port = PORT_FIBRE;
296 case QETH_LINK_TYPE_10GBIT_ETH:
297 cmd->base.speed = SPEED_10000;
298 cmd->base.port = PORT_FIBRE;
300 case QETH_LINK_TYPE_25GBIT_ETH:
301 cmd->base.speed = SPEED_25000;
302 cmd->base.port = PORT_FIBRE;
305 cmd->base.speed = SPEED_10;
306 cmd->base.port = PORT_TP;
308 qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port);
310 /* Check if we can obtain more accurate information. */
311 /* If QUERY_CARD_INFO command is not supported or fails, */
312 /* just return the heuristics that was filled above. */
313 rc = qeth_query_card_info(card, &carrier_info);
314 if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */
316 if (rc) /* report error from the hardware operation */
318 /* on success, fill in the information got from the hardware */
321 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n",
322 carrier_info.card_type,
323 carrier_info.port_mode,
324 carrier_info.port_speed);
326 /* Update attributes for which we've obtained more authoritative */
327 /* information, leave the rest the way they where filled above. */
328 switch (carrier_info.card_type) {
329 case CARD_INFO_TYPE_1G_COPPER_A:
330 case CARD_INFO_TYPE_1G_COPPER_B:
331 cmd->base.port = PORT_TP;
332 qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port);
334 case CARD_INFO_TYPE_1G_FIBRE_A:
335 case CARD_INFO_TYPE_1G_FIBRE_B:
336 cmd->base.port = PORT_FIBRE;
337 qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port);
339 case CARD_INFO_TYPE_10G_FIBRE_A:
340 case CARD_INFO_TYPE_10G_FIBRE_B:
341 cmd->base.port = PORT_FIBRE;
342 qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port);
346 switch (carrier_info.port_mode) {
347 case CARD_INFO_PORTM_FULLDUPLEX:
348 cmd->base.duplex = DUPLEX_FULL;
350 case CARD_INFO_PORTM_HALFDUPLEX:
351 cmd->base.duplex = DUPLEX_HALF;
355 switch (carrier_info.port_speed) {
356 case CARD_INFO_PORTS_10M:
357 cmd->base.speed = SPEED_10;
359 case CARD_INFO_PORTS_100M:
360 cmd->base.speed = SPEED_100;
362 case CARD_INFO_PORTS_1G:
363 cmd->base.speed = SPEED_1000;
365 case CARD_INFO_PORTS_10G:
366 cmd->base.speed = SPEED_10000;
368 case CARD_INFO_PORTS_25G:
369 cmd->base.speed = SPEED_25000;
376 const struct ethtool_ops qeth_ethtool_ops = {
377 .get_link = ethtool_op_get_link,
378 .get_ringparam = qeth_get_ringparam,
379 .get_strings = qeth_get_strings,
380 .get_ethtool_stats = qeth_get_ethtool_stats,
381 .get_sset_count = qeth_get_sset_count,
382 .get_drvinfo = qeth_get_drvinfo,
383 .get_channels = qeth_get_channels,
384 .get_link_ksettings = qeth_get_link_ksettings,
387 const struct ethtool_ops qeth_osn_ethtool_ops = {
388 .get_strings = qeth_get_strings,
389 .get_ethtool_stats = qeth_get_ethtool_stats,
390 .get_sset_count = qeth_get_sset_count,
391 .get_drvinfo = qeth_get_drvinfo,