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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2009 - 2018 Intel Corporation. */
3
4/* ethtool support for igbvf */
5
6#include <linux/netdevice.h>
7#include <linux/ethtool.h>
8#include <linux/pci.h>
9#include <linux/vmalloc.h>
10#include <linux/delay.h>
11
12#include "igbvf.h"
13#include <linux/if_vlan.h>
14
15struct igbvf_stats {
16 char stat_string[ETH_GSTRING_LEN];
17 int sizeof_stat;
18 int stat_offset;
19 int base_stat_offset;
20};
21
22#define IGBVF_STAT(current, base) \
23 sizeof(((struct igbvf_adapter *)0)->current), \
24 offsetof(struct igbvf_adapter, current), \
25 offsetof(struct igbvf_adapter, base)
26
27static const struct igbvf_stats igbvf_gstrings_stats[] = {
28 { "rx_packets", IGBVF_STAT(stats.gprc, stats.base_gprc) },
29 { "tx_packets", IGBVF_STAT(stats.gptc, stats.base_gptc) },
30 { "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
31 { "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
32 { "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
33 { "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
34 { "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
35 { "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
36 { "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
37 { "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
38 { "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
39 { "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
40 { "alloc_rx_buff_failed", IGBVF_STAT(alloc_rx_buff_failed, zero_base) },
41};
42
43#define IGBVF_GLOBAL_STATS_LEN ARRAY_SIZE(igbvf_gstrings_stats)
44
45static const char igbvf_gstrings_test[][ETH_GSTRING_LEN] = {
46 "Link test (on/offline)"
47};
48
49#define IGBVF_TEST_LEN ARRAY_SIZE(igbvf_gstrings_test)
50
51static int igbvf_get_link_ksettings(struct net_device *netdev,
52 struct ethtool_link_ksettings *cmd)
53{
54 struct igbvf_adapter *adapter = netdev_priv(netdev);
55 struct e1000_hw *hw = &adapter->hw;
56 u32 status;
57
58 ethtool_link_ksettings_zero_link_mode(cmd, supported);
59 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
60 ethtool_link_ksettings_zero_link_mode(cmd, advertising);
61 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
62
63 cmd->base.port = -1;
64
65 status = er32(STATUS);
66 if (status & E1000_STATUS_LU) {
67 if (status & E1000_STATUS_SPEED_1000)
68 cmd->base.speed = SPEED_1000;
69 else if (status & E1000_STATUS_SPEED_100)
70 cmd->base.speed = SPEED_100;
71 else
72 cmd->base.speed = SPEED_10;
73
74 if (status & E1000_STATUS_FD)
75 cmd->base.duplex = DUPLEX_FULL;
76 else
77 cmd->base.duplex = DUPLEX_HALF;
78 } else {
79 cmd->base.speed = SPEED_UNKNOWN;
80 cmd->base.duplex = DUPLEX_UNKNOWN;
81 }
82
83 cmd->base.autoneg = AUTONEG_DISABLE;
84
85 return 0;
86}
87
88static int igbvf_set_link_ksettings(struct net_device *netdev,
89 const struct ethtool_link_ksettings *cmd)
90{
91 return -EOPNOTSUPP;
92}
93
94static void igbvf_get_pauseparam(struct net_device *netdev,
95 struct ethtool_pauseparam *pause)
96{
97}
98
99static int igbvf_set_pauseparam(struct net_device *netdev,
100 struct ethtool_pauseparam *pause)
101{
102 return -EOPNOTSUPP;
103}
104
105static u32 igbvf_get_msglevel(struct net_device *netdev)
106{
107 struct igbvf_adapter *adapter = netdev_priv(netdev);
108
109 return adapter->msg_enable;
110}
111
112static void igbvf_set_msglevel(struct net_device *netdev, u32 data)
113{
114 struct igbvf_adapter *adapter = netdev_priv(netdev);
115
116 adapter->msg_enable = data;
117}
118
119static int igbvf_get_regs_len(struct net_device *netdev)
120{
121#define IGBVF_REGS_LEN 8
122 return IGBVF_REGS_LEN * sizeof(u32);
123}
124
125static void igbvf_get_regs(struct net_device *netdev,
126 struct ethtool_regs *regs, void *p)
127{
128 struct igbvf_adapter *adapter = netdev_priv(netdev);
129 struct e1000_hw *hw = &adapter->hw;
130 u32 *regs_buff = p;
131
132 memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
133
134 regs->version = (1u << 24) |
135 (adapter->pdev->revision << 16) |
136 adapter->pdev->device;
137
138 regs_buff[0] = er32(CTRL);
139 regs_buff[1] = er32(STATUS);
140
141 regs_buff[2] = er32(RDLEN(0));
142 regs_buff[3] = er32(RDH(0));
143 regs_buff[4] = er32(RDT(0));
144
145 regs_buff[5] = er32(TDLEN(0));
146 regs_buff[6] = er32(TDH(0));
147 regs_buff[7] = er32(TDT(0));
148}
149
150static int igbvf_get_eeprom_len(struct net_device *netdev)
151{
152 return 0;
153}
154
155static int igbvf_get_eeprom(struct net_device *netdev,
156 struct ethtool_eeprom *eeprom, u8 *bytes)
157{
158 return -EOPNOTSUPP;
159}
160
161static int igbvf_set_eeprom(struct net_device *netdev,
162 struct ethtool_eeprom *eeprom, u8 *bytes)
163{
164 return -EOPNOTSUPP;
165}
166
167static void igbvf_get_drvinfo(struct net_device *netdev,
168 struct ethtool_drvinfo *drvinfo)
169{
170 struct igbvf_adapter *adapter = netdev_priv(netdev);
171
172 strscpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver));
173 strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
174 sizeof(drvinfo->bus_info));
175}
176
177static void igbvf_get_ringparam(struct net_device *netdev,
178 struct ethtool_ringparam *ring,
179 struct kernel_ethtool_ringparam *kernel_ring,
180 struct netlink_ext_ack *extack)
181{
182 struct igbvf_adapter *adapter = netdev_priv(netdev);
183 struct igbvf_ring *tx_ring = adapter->tx_ring;
184 struct igbvf_ring *rx_ring = adapter->rx_ring;
185
186 ring->rx_max_pending = IGBVF_MAX_RXD;
187 ring->tx_max_pending = IGBVF_MAX_TXD;
188 ring->rx_pending = rx_ring->count;
189 ring->tx_pending = tx_ring->count;
190}
191
192static int igbvf_set_ringparam(struct net_device *netdev,
193 struct ethtool_ringparam *ring,
194 struct kernel_ethtool_ringparam *kernel_ring,
195 struct netlink_ext_ack *extack)
196{
197 struct igbvf_adapter *adapter = netdev_priv(netdev);
198 struct igbvf_ring *temp_ring;
199 int err = 0;
200 u32 new_rx_count, new_tx_count;
201
202 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
203 return -EINVAL;
204
205 new_rx_count = max_t(u32, ring->rx_pending, IGBVF_MIN_RXD);
206 new_rx_count = min_t(u32, new_rx_count, IGBVF_MAX_RXD);
207 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
208
209 new_tx_count = max_t(u32, ring->tx_pending, IGBVF_MIN_TXD);
210 new_tx_count = min_t(u32, new_tx_count, IGBVF_MAX_TXD);
211 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
212
213 if ((new_tx_count == adapter->tx_ring->count) &&
214 (new_rx_count == adapter->rx_ring->count)) {
215 /* nothing to do */
216 return 0;
217 }
218
219 while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
220 usleep_range(1000, 2000);
221
222 if (!netif_running(adapter->netdev)) {
223 adapter->tx_ring->count = new_tx_count;
224 adapter->rx_ring->count = new_rx_count;
225 goto clear_reset;
226 }
227
228 temp_ring = vmalloc(sizeof(struct igbvf_ring));
229 if (!temp_ring) {
230 err = -ENOMEM;
231 goto clear_reset;
232 }
233
234 igbvf_down(adapter);
235
236 /* We can't just free everything and then setup again,
237 * because the ISRs in MSI-X mode get passed pointers
238 * to the Tx and Rx ring structs.
239 */
240 if (new_tx_count != adapter->tx_ring->count) {
241 memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
242
243 temp_ring->count = new_tx_count;
244 err = igbvf_setup_tx_resources(adapter, temp_ring);
245 if (err)
246 goto err_setup;
247
248 igbvf_free_tx_resources(adapter->tx_ring);
249
250 memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
251 }
252
253 if (new_rx_count != adapter->rx_ring->count) {
254 memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
255
256 temp_ring->count = new_rx_count;
257 err = igbvf_setup_rx_resources(adapter, temp_ring);
258 if (err)
259 goto err_setup;
260
261 igbvf_free_rx_resources(adapter->rx_ring);
262
263 memcpy(adapter->rx_ring, temp_ring, sizeof(struct igbvf_ring));
264 }
265err_setup:
266 igbvf_up(adapter);
267 vfree(temp_ring);
268clear_reset:
269 clear_bit(__IGBVF_RESETTING, &adapter->state);
270 return err;
271}
272
273static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
274{
275 struct e1000_hw *hw = &adapter->hw;
276 *data = 0;
277
278 spin_lock_bh(&hw->mbx_lock);
279
280 hw->mac.ops.check_for_link(hw);
281
282 spin_unlock_bh(&hw->mbx_lock);
283
284 if (!(er32(STATUS) & E1000_STATUS_LU))
285 *data = 1;
286
287 return *data;
288}
289
290static void igbvf_diag_test(struct net_device *netdev,
291 struct ethtool_test *eth_test, u64 *data)
292{
293 struct igbvf_adapter *adapter = netdev_priv(netdev);
294
295 set_bit(__IGBVF_TESTING, &adapter->state);
296
297 /* Link test performed before hardware reset so autoneg doesn't
298 * interfere with test result
299 */
300 if (igbvf_link_test(adapter, &data[0]))
301 eth_test->flags |= ETH_TEST_FL_FAILED;
302
303 clear_bit(__IGBVF_TESTING, &adapter->state);
304 msleep_interruptible(4 * 1000);
305}
306
307static void igbvf_get_wol(struct net_device *netdev,
308 struct ethtool_wolinfo *wol)
309{
310 wol->supported = 0;
311 wol->wolopts = 0;
312}
313
314static int igbvf_set_wol(struct net_device *netdev,
315 struct ethtool_wolinfo *wol)
316{
317 return -EOPNOTSUPP;
318}
319
320static int igbvf_get_coalesce(struct net_device *netdev,
321 struct ethtool_coalesce *ec,
322 struct kernel_ethtool_coalesce *kernel_coal,
323 struct netlink_ext_ack *extack)
324{
325 struct igbvf_adapter *adapter = netdev_priv(netdev);
326
327 if (adapter->requested_itr <= 3)
328 ec->rx_coalesce_usecs = adapter->requested_itr;
329 else
330 ec->rx_coalesce_usecs = adapter->current_itr >> 2;
331
332 return 0;
333}
334
335static int igbvf_set_coalesce(struct net_device *netdev,
336 struct ethtool_coalesce *ec,
337 struct kernel_ethtool_coalesce *kernel_coal,
338 struct netlink_ext_ack *extack)
339{
340 struct igbvf_adapter *adapter = netdev_priv(netdev);
341 struct e1000_hw *hw = &adapter->hw;
342
343 if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) &&
344 (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) {
345 adapter->current_itr = ec->rx_coalesce_usecs << 2;
346 adapter->requested_itr = 1000000000 /
347 (adapter->current_itr * 256);
348 } else if ((ec->rx_coalesce_usecs == 3) ||
349 (ec->rx_coalesce_usecs == 2)) {
350 adapter->current_itr = IGBVF_START_ITR;
351 adapter->requested_itr = ec->rx_coalesce_usecs;
352 } else if (ec->rx_coalesce_usecs == 0) {
353 /* The user's desire is to turn off interrupt throttling
354 * altogether, but due to HW limitations, we can't do that.
355 * Instead we set a very small value in EITR, which would
356 * allow ~967k interrupts per second, but allow the adapter's
357 * internal clocking to still function properly.
358 */
359 adapter->current_itr = 4;
360 adapter->requested_itr = 1000000000 /
361 (adapter->current_itr * 256);
362 } else {
363 return -EINVAL;
364 }
365
366 writel(adapter->current_itr,
367 hw->hw_addr + adapter->rx_ring->itr_register);
368
369 return 0;
370}
371
372static int igbvf_nway_reset(struct net_device *netdev)
373{
374 struct igbvf_adapter *adapter = netdev_priv(netdev);
375
376 if (netif_running(netdev))
377 igbvf_reinit_locked(adapter);
378 return 0;
379}
380
381static void igbvf_get_ethtool_stats(struct net_device *netdev,
382 struct ethtool_stats *stats,
383 u64 *data)
384{
385 struct igbvf_adapter *adapter = netdev_priv(netdev);
386 int i;
387
388 igbvf_update_stats(adapter);
389 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
390 char *p = (char *)adapter +
391 igbvf_gstrings_stats[i].stat_offset;
392 char *b = (char *)adapter +
393 igbvf_gstrings_stats[i].base_stat_offset;
394 data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
395 sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
396 (*(u32 *)p - *(u32 *)b));
397 }
398}
399
400static int igbvf_get_sset_count(struct net_device *dev, int stringset)
401{
402 switch (stringset) {
403 case ETH_SS_TEST:
404 return IGBVF_TEST_LEN;
405 case ETH_SS_STATS:
406 return IGBVF_GLOBAL_STATS_LEN;
407 default:
408 return -EINVAL;
409 }
410}
411
412static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
413 u8 *data)
414{
415 u8 *p = data;
416 int i;
417
418 switch (stringset) {
419 case ETH_SS_TEST:
420 memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
421 break;
422 case ETH_SS_STATS:
423 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
424 memcpy(p, igbvf_gstrings_stats[i].stat_string,
425 ETH_GSTRING_LEN);
426 p += ETH_GSTRING_LEN;
427 }
428 break;
429 }
430}
431
432static const struct ethtool_ops igbvf_ethtool_ops = {
433 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,
434 .get_drvinfo = igbvf_get_drvinfo,
435 .get_regs_len = igbvf_get_regs_len,
436 .get_regs = igbvf_get_regs,
437 .get_wol = igbvf_get_wol,
438 .set_wol = igbvf_set_wol,
439 .get_msglevel = igbvf_get_msglevel,
440 .set_msglevel = igbvf_set_msglevel,
441 .nway_reset = igbvf_nway_reset,
442 .get_link = ethtool_op_get_link,
443 .get_eeprom_len = igbvf_get_eeprom_len,
444 .get_eeprom = igbvf_get_eeprom,
445 .set_eeprom = igbvf_set_eeprom,
446 .get_ringparam = igbvf_get_ringparam,
447 .set_ringparam = igbvf_set_ringparam,
448 .get_pauseparam = igbvf_get_pauseparam,
449 .set_pauseparam = igbvf_set_pauseparam,
450 .self_test = igbvf_diag_test,
451 .get_sset_count = igbvf_get_sset_count,
452 .get_strings = igbvf_get_strings,
453 .get_ethtool_stats = igbvf_get_ethtool_stats,
454 .get_coalesce = igbvf_get_coalesce,
455 .set_coalesce = igbvf_set_coalesce,
456 .get_link_ksettings = igbvf_get_link_ksettings,
457 .set_link_ksettings = igbvf_set_link_ksettings,
458};
459
460void igbvf_set_ethtool_ops(struct net_device *netdev)
461{
462 netdev->ethtool_ops = &igbvf_ethtool_ops;
463}
1/*******************************************************************************
2
3 Intel(R) 82576 Virtual Function Linux driver
4 Copyright(c) 2009 - 2012 Intel Corporation.
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, see <http://www.gnu.org/licenses/>.
17
18 The full GNU General Public License is included in this distribution in
19 the file called "COPYING".
20
21 Contact Information:
22 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24
25*******************************************************************************/
26
27/* ethtool support for igbvf */
28
29#include <linux/netdevice.h>
30#include <linux/ethtool.h>
31#include <linux/pci.h>
32#include <linux/vmalloc.h>
33#include <linux/delay.h>
34
35#include "igbvf.h"
36#include <linux/if_vlan.h>
37
38struct igbvf_stats {
39 char stat_string[ETH_GSTRING_LEN];
40 int sizeof_stat;
41 int stat_offset;
42 int base_stat_offset;
43};
44
45#define IGBVF_STAT(current, base) \
46 sizeof(((struct igbvf_adapter *)0)->current), \
47 offsetof(struct igbvf_adapter, current), \
48 offsetof(struct igbvf_adapter, base)
49
50static const struct igbvf_stats igbvf_gstrings_stats[] = {
51 { "rx_packets", IGBVF_STAT(stats.gprc, stats.base_gprc) },
52 { "tx_packets", IGBVF_STAT(stats.gptc, stats.base_gptc) },
53 { "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
54 { "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
55 { "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
56 { "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
57 { "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
58 { "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
59 { "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
60 { "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
61 { "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
62 { "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
63 { "alloc_rx_buff_failed", IGBVF_STAT(alloc_rx_buff_failed, zero_base) },
64};
65
66#define IGBVF_GLOBAL_STATS_LEN ARRAY_SIZE(igbvf_gstrings_stats)
67
68static const char igbvf_gstrings_test[][ETH_GSTRING_LEN] = {
69 "Link test (on/offline)"
70};
71
72#define IGBVF_TEST_LEN ARRAY_SIZE(igbvf_gstrings_test)
73
74static int igbvf_get_settings(struct net_device *netdev,
75 struct ethtool_cmd *ecmd)
76{
77 struct igbvf_adapter *adapter = netdev_priv(netdev);
78 struct e1000_hw *hw = &adapter->hw;
79 u32 status;
80
81 ecmd->supported = SUPPORTED_1000baseT_Full;
82
83 ecmd->advertising = ADVERTISED_1000baseT_Full;
84
85 ecmd->port = -1;
86 ecmd->transceiver = XCVR_DUMMY1;
87
88 status = er32(STATUS);
89 if (status & E1000_STATUS_LU) {
90 if (status & E1000_STATUS_SPEED_1000)
91 ethtool_cmd_speed_set(ecmd, SPEED_1000);
92 else if (status & E1000_STATUS_SPEED_100)
93 ethtool_cmd_speed_set(ecmd, SPEED_100);
94 else
95 ethtool_cmd_speed_set(ecmd, SPEED_10);
96
97 if (status & E1000_STATUS_FD)
98 ecmd->duplex = DUPLEX_FULL;
99 else
100 ecmd->duplex = DUPLEX_HALF;
101 } else {
102 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
103 ecmd->duplex = DUPLEX_UNKNOWN;
104 }
105
106 ecmd->autoneg = AUTONEG_DISABLE;
107
108 return 0;
109}
110
111static int igbvf_set_settings(struct net_device *netdev,
112 struct ethtool_cmd *ecmd)
113{
114 return -EOPNOTSUPP;
115}
116
117static void igbvf_get_pauseparam(struct net_device *netdev,
118 struct ethtool_pauseparam *pause)
119{
120}
121
122static int igbvf_set_pauseparam(struct net_device *netdev,
123 struct ethtool_pauseparam *pause)
124{
125 return -EOPNOTSUPP;
126}
127
128static u32 igbvf_get_msglevel(struct net_device *netdev)
129{
130 struct igbvf_adapter *adapter = netdev_priv(netdev);
131
132 return adapter->msg_enable;
133}
134
135static void igbvf_set_msglevel(struct net_device *netdev, u32 data)
136{
137 struct igbvf_adapter *adapter = netdev_priv(netdev);
138
139 adapter->msg_enable = data;
140}
141
142static int igbvf_get_regs_len(struct net_device *netdev)
143{
144#define IGBVF_REGS_LEN 8
145 return IGBVF_REGS_LEN * sizeof(u32);
146}
147
148static void igbvf_get_regs(struct net_device *netdev,
149 struct ethtool_regs *regs, void *p)
150{
151 struct igbvf_adapter *adapter = netdev_priv(netdev);
152 struct e1000_hw *hw = &adapter->hw;
153 u32 *regs_buff = p;
154
155 memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
156
157 regs->version = (1u << 24) |
158 (adapter->pdev->revision << 16) |
159 adapter->pdev->device;
160
161 regs_buff[0] = er32(CTRL);
162 regs_buff[1] = er32(STATUS);
163
164 regs_buff[2] = er32(RDLEN(0));
165 regs_buff[3] = er32(RDH(0));
166 regs_buff[4] = er32(RDT(0));
167
168 regs_buff[5] = er32(TDLEN(0));
169 regs_buff[6] = er32(TDH(0));
170 regs_buff[7] = er32(TDT(0));
171}
172
173static int igbvf_get_eeprom_len(struct net_device *netdev)
174{
175 return 0;
176}
177
178static int igbvf_get_eeprom(struct net_device *netdev,
179 struct ethtool_eeprom *eeprom, u8 *bytes)
180{
181 return -EOPNOTSUPP;
182}
183
184static int igbvf_set_eeprom(struct net_device *netdev,
185 struct ethtool_eeprom *eeprom, u8 *bytes)
186{
187 return -EOPNOTSUPP;
188}
189
190static void igbvf_get_drvinfo(struct net_device *netdev,
191 struct ethtool_drvinfo *drvinfo)
192{
193 struct igbvf_adapter *adapter = netdev_priv(netdev);
194
195 strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver));
196 strlcpy(drvinfo->version, igbvf_driver_version,
197 sizeof(drvinfo->version));
198 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
199 sizeof(drvinfo->bus_info));
200}
201
202static void igbvf_get_ringparam(struct net_device *netdev,
203 struct ethtool_ringparam *ring)
204{
205 struct igbvf_adapter *adapter = netdev_priv(netdev);
206 struct igbvf_ring *tx_ring = adapter->tx_ring;
207 struct igbvf_ring *rx_ring = adapter->rx_ring;
208
209 ring->rx_max_pending = IGBVF_MAX_RXD;
210 ring->tx_max_pending = IGBVF_MAX_TXD;
211 ring->rx_pending = rx_ring->count;
212 ring->tx_pending = tx_ring->count;
213}
214
215static int igbvf_set_ringparam(struct net_device *netdev,
216 struct ethtool_ringparam *ring)
217{
218 struct igbvf_adapter *adapter = netdev_priv(netdev);
219 struct igbvf_ring *temp_ring;
220 int err = 0;
221 u32 new_rx_count, new_tx_count;
222
223 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
224 return -EINVAL;
225
226 new_rx_count = max_t(u32, ring->rx_pending, IGBVF_MIN_RXD);
227 new_rx_count = min_t(u32, new_rx_count, IGBVF_MAX_RXD);
228 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
229
230 new_tx_count = max_t(u32, ring->tx_pending, IGBVF_MIN_TXD);
231 new_tx_count = min_t(u32, new_tx_count, IGBVF_MAX_TXD);
232 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
233
234 if ((new_tx_count == adapter->tx_ring->count) &&
235 (new_rx_count == adapter->rx_ring->count)) {
236 /* nothing to do */
237 return 0;
238 }
239
240 while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
241 usleep_range(1000, 2000);
242
243 if (!netif_running(adapter->netdev)) {
244 adapter->tx_ring->count = new_tx_count;
245 adapter->rx_ring->count = new_rx_count;
246 goto clear_reset;
247 }
248
249 temp_ring = vmalloc(sizeof(struct igbvf_ring));
250 if (!temp_ring) {
251 err = -ENOMEM;
252 goto clear_reset;
253 }
254
255 igbvf_down(adapter);
256
257 /* We can't just free everything and then setup again,
258 * because the ISRs in MSI-X mode get passed pointers
259 * to the Tx and Rx ring structs.
260 */
261 if (new_tx_count != adapter->tx_ring->count) {
262 memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
263
264 temp_ring->count = new_tx_count;
265 err = igbvf_setup_tx_resources(adapter, temp_ring);
266 if (err)
267 goto err_setup;
268
269 igbvf_free_tx_resources(adapter->tx_ring);
270
271 memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
272 }
273
274 if (new_rx_count != adapter->rx_ring->count) {
275 memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
276
277 temp_ring->count = new_rx_count;
278 err = igbvf_setup_rx_resources(adapter, temp_ring);
279 if (err)
280 goto err_setup;
281
282 igbvf_free_rx_resources(adapter->rx_ring);
283
284 memcpy(adapter->rx_ring, temp_ring, sizeof(struct igbvf_ring));
285 }
286err_setup:
287 igbvf_up(adapter);
288 vfree(temp_ring);
289clear_reset:
290 clear_bit(__IGBVF_RESETTING, &adapter->state);
291 return err;
292}
293
294static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
295{
296 struct e1000_hw *hw = &adapter->hw;
297 *data = 0;
298
299 hw->mac.ops.check_for_link(hw);
300
301 if (!(er32(STATUS) & E1000_STATUS_LU))
302 *data = 1;
303
304 return *data;
305}
306
307static void igbvf_diag_test(struct net_device *netdev,
308 struct ethtool_test *eth_test, u64 *data)
309{
310 struct igbvf_adapter *adapter = netdev_priv(netdev);
311
312 set_bit(__IGBVF_TESTING, &adapter->state);
313
314 /* Link test performed before hardware reset so autoneg doesn't
315 * interfere with test result
316 */
317 if (igbvf_link_test(adapter, &data[0]))
318 eth_test->flags |= ETH_TEST_FL_FAILED;
319
320 clear_bit(__IGBVF_TESTING, &adapter->state);
321 msleep_interruptible(4 * 1000);
322}
323
324static void igbvf_get_wol(struct net_device *netdev,
325 struct ethtool_wolinfo *wol)
326{
327 wol->supported = 0;
328 wol->wolopts = 0;
329}
330
331static int igbvf_set_wol(struct net_device *netdev,
332 struct ethtool_wolinfo *wol)
333{
334 return -EOPNOTSUPP;
335}
336
337static int igbvf_get_coalesce(struct net_device *netdev,
338 struct ethtool_coalesce *ec)
339{
340 struct igbvf_adapter *adapter = netdev_priv(netdev);
341
342 if (adapter->requested_itr <= 3)
343 ec->rx_coalesce_usecs = adapter->requested_itr;
344 else
345 ec->rx_coalesce_usecs = adapter->current_itr >> 2;
346
347 return 0;
348}
349
350static int igbvf_set_coalesce(struct net_device *netdev,
351 struct ethtool_coalesce *ec)
352{
353 struct igbvf_adapter *adapter = netdev_priv(netdev);
354 struct e1000_hw *hw = &adapter->hw;
355
356 if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) &&
357 (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) {
358 adapter->current_itr = ec->rx_coalesce_usecs << 2;
359 adapter->requested_itr = 1000000000 /
360 (adapter->current_itr * 256);
361 } else if ((ec->rx_coalesce_usecs == 3) ||
362 (ec->rx_coalesce_usecs == 2)) {
363 adapter->current_itr = IGBVF_START_ITR;
364 adapter->requested_itr = ec->rx_coalesce_usecs;
365 } else if (ec->rx_coalesce_usecs == 0) {
366 /* The user's desire is to turn off interrupt throttling
367 * altogether, but due to HW limitations, we can't do that.
368 * Instead we set a very small value in EITR, which would
369 * allow ~967k interrupts per second, but allow the adapter's
370 * internal clocking to still function properly.
371 */
372 adapter->current_itr = 4;
373 adapter->requested_itr = 1000000000 /
374 (adapter->current_itr * 256);
375 } else {
376 return -EINVAL;
377 }
378
379 writel(adapter->current_itr,
380 hw->hw_addr + adapter->rx_ring->itr_register);
381
382 return 0;
383}
384
385static int igbvf_nway_reset(struct net_device *netdev)
386{
387 struct igbvf_adapter *adapter = netdev_priv(netdev);
388
389 if (netif_running(netdev))
390 igbvf_reinit_locked(adapter);
391 return 0;
392}
393
394static void igbvf_get_ethtool_stats(struct net_device *netdev,
395 struct ethtool_stats *stats,
396 u64 *data)
397{
398 struct igbvf_adapter *adapter = netdev_priv(netdev);
399 int i;
400
401 igbvf_update_stats(adapter);
402 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
403 char *p = (char *)adapter +
404 igbvf_gstrings_stats[i].stat_offset;
405 char *b = (char *)adapter +
406 igbvf_gstrings_stats[i].base_stat_offset;
407 data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
408 sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
409 (*(u32 *)p - *(u32 *)b));
410 }
411}
412
413static int igbvf_get_sset_count(struct net_device *dev, int stringset)
414{
415 switch (stringset) {
416 case ETH_SS_TEST:
417 return IGBVF_TEST_LEN;
418 case ETH_SS_STATS:
419 return IGBVF_GLOBAL_STATS_LEN;
420 default:
421 return -EINVAL;
422 }
423}
424
425static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
426 u8 *data)
427{
428 u8 *p = data;
429 int i;
430
431 switch (stringset) {
432 case ETH_SS_TEST:
433 memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
434 break;
435 case ETH_SS_STATS:
436 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
437 memcpy(p, igbvf_gstrings_stats[i].stat_string,
438 ETH_GSTRING_LEN);
439 p += ETH_GSTRING_LEN;
440 }
441 break;
442 }
443}
444
445static const struct ethtool_ops igbvf_ethtool_ops = {
446 .get_settings = igbvf_get_settings,
447 .set_settings = igbvf_set_settings,
448 .get_drvinfo = igbvf_get_drvinfo,
449 .get_regs_len = igbvf_get_regs_len,
450 .get_regs = igbvf_get_regs,
451 .get_wol = igbvf_get_wol,
452 .set_wol = igbvf_set_wol,
453 .get_msglevel = igbvf_get_msglevel,
454 .set_msglevel = igbvf_set_msglevel,
455 .nway_reset = igbvf_nway_reset,
456 .get_link = ethtool_op_get_link,
457 .get_eeprom_len = igbvf_get_eeprom_len,
458 .get_eeprom = igbvf_get_eeprom,
459 .set_eeprom = igbvf_set_eeprom,
460 .get_ringparam = igbvf_get_ringparam,
461 .set_ringparam = igbvf_set_ringparam,
462 .get_pauseparam = igbvf_get_pauseparam,
463 .set_pauseparam = igbvf_set_pauseparam,
464 .self_test = igbvf_diag_test,
465 .get_sset_count = igbvf_get_sset_count,
466 .get_strings = igbvf_get_strings,
467 .get_ethtool_stats = igbvf_get_ethtool_stats,
468 .get_coalesce = igbvf_get_coalesce,
469 .set_coalesce = igbvf_set_coalesce,
470};
471
472void igbvf_set_ethtool_ops(struct net_device *netdev)
473{
474 netdev->ethtool_ops = &igbvf_ethtool_ops;
475}