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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 = (1 << 24) | (adapter->pdev->revision << 16) |
158 adapter->pdev->device;
159
160 regs_buff[0] = er32(CTRL);
161 regs_buff[1] = er32(STATUS);
162
163 regs_buff[2] = er32(RDLEN(0));
164 regs_buff[3] = er32(RDH(0));
165 regs_buff[4] = er32(RDT(0));
166
167 regs_buff[5] = er32(TDLEN(0));
168 regs_buff[6] = er32(TDH(0));
169 regs_buff[7] = er32(TDT(0));
170}
171
172static int igbvf_get_eeprom_len(struct net_device *netdev)
173{
174 return 0;
175}
176
177static int igbvf_get_eeprom(struct net_device *netdev,
178 struct ethtool_eeprom *eeprom, u8 *bytes)
179{
180 return -EOPNOTSUPP;
181}
182
183static int igbvf_set_eeprom(struct net_device *netdev,
184 struct ethtool_eeprom *eeprom, u8 *bytes)
185{
186 return -EOPNOTSUPP;
187}
188
189static void igbvf_get_drvinfo(struct net_device *netdev,
190 struct ethtool_drvinfo *drvinfo)
191{
192 struct igbvf_adapter *adapter = netdev_priv(netdev);
193
194 strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver));
195 strlcpy(drvinfo->version, igbvf_driver_version,
196 sizeof(drvinfo->version));
197 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
198 sizeof(drvinfo->bus_info));
199}
200
201static void igbvf_get_ringparam(struct net_device *netdev,
202 struct ethtool_ringparam *ring)
203{
204 struct igbvf_adapter *adapter = netdev_priv(netdev);
205 struct igbvf_ring *tx_ring = adapter->tx_ring;
206 struct igbvf_ring *rx_ring = adapter->rx_ring;
207
208 ring->rx_max_pending = IGBVF_MAX_RXD;
209 ring->tx_max_pending = IGBVF_MAX_TXD;
210 ring->rx_pending = rx_ring->count;
211 ring->tx_pending = tx_ring->count;
212}
213
214static int igbvf_set_ringparam(struct net_device *netdev,
215 struct ethtool_ringparam *ring)
216{
217 struct igbvf_adapter *adapter = netdev_priv(netdev);
218 struct igbvf_ring *temp_ring;
219 int err = 0;
220 u32 new_rx_count, new_tx_count;
221
222 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
223 return -EINVAL;
224
225 new_rx_count = max_t(u32, ring->rx_pending, IGBVF_MIN_RXD);
226 new_rx_count = min_t(u32, new_rx_count, IGBVF_MAX_RXD);
227 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
228
229 new_tx_count = max_t(u32, ring->tx_pending, IGBVF_MIN_TXD);
230 new_tx_count = min_t(u32, new_tx_count, IGBVF_MAX_TXD);
231 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
232
233 if ((new_tx_count == adapter->tx_ring->count) &&
234 (new_rx_count == adapter->rx_ring->count)) {
235 /* nothing to do */
236 return 0;
237 }
238
239 while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
240 usleep_range(1000, 2000);
241
242 if (!netif_running(adapter->netdev)) {
243 adapter->tx_ring->count = new_tx_count;
244 adapter->rx_ring->count = new_rx_count;
245 goto clear_reset;
246 }
247
248 temp_ring = vmalloc(sizeof(struct igbvf_ring));
249 if (!temp_ring) {
250 err = -ENOMEM;
251 goto clear_reset;
252 }
253
254 igbvf_down(adapter);
255
256 /* We can't just free everything and then setup again,
257 * because the ISRs in MSI-X mode get passed pointers
258 * to the Tx and Rx ring structs.
259 */
260 if (new_tx_count != adapter->tx_ring->count) {
261 memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
262
263 temp_ring->count = new_tx_count;
264 err = igbvf_setup_tx_resources(adapter, temp_ring);
265 if (err)
266 goto err_setup;
267
268 igbvf_free_tx_resources(adapter->tx_ring);
269
270 memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
271 }
272
273 if (new_rx_count != adapter->rx_ring->count) {
274 memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
275
276 temp_ring->count = new_rx_count;
277 err = igbvf_setup_rx_resources(adapter, temp_ring);
278 if (err)
279 goto err_setup;
280
281 igbvf_free_rx_resources(adapter->rx_ring);
282
283 memcpy(adapter->rx_ring, temp_ring, sizeof(struct igbvf_ring));
284 }
285err_setup:
286 igbvf_up(adapter);
287 vfree(temp_ring);
288clear_reset:
289 clear_bit(__IGBVF_RESETTING, &adapter->state);
290 return err;
291}
292
293static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
294{
295 struct e1000_hw *hw = &adapter->hw;
296 *data = 0;
297
298 hw->mac.ops.check_for_link(hw);
299
300 if (!(er32(STATUS) & E1000_STATUS_LU))
301 *data = 1;
302
303 return *data;
304}
305
306static void igbvf_diag_test(struct net_device *netdev,
307 struct ethtool_test *eth_test, u64 *data)
308{
309 struct igbvf_adapter *adapter = netdev_priv(netdev);
310
311 set_bit(__IGBVF_TESTING, &adapter->state);
312
313 /* Link test performed before hardware reset so autoneg doesn't
314 * interfere with test result
315 */
316 if (igbvf_link_test(adapter, &data[0]))
317 eth_test->flags |= ETH_TEST_FL_FAILED;
318
319 clear_bit(__IGBVF_TESTING, &adapter->state);
320 msleep_interruptible(4 * 1000);
321}
322
323static void igbvf_get_wol(struct net_device *netdev,
324 struct ethtool_wolinfo *wol)
325{
326 wol->supported = 0;
327 wol->wolopts = 0;
328}
329
330static int igbvf_set_wol(struct net_device *netdev,
331 struct ethtool_wolinfo *wol)
332{
333 return -EOPNOTSUPP;
334}
335
336static int igbvf_get_coalesce(struct net_device *netdev,
337 struct ethtool_coalesce *ec)
338{
339 struct igbvf_adapter *adapter = netdev_priv(netdev);
340
341 if (adapter->requested_itr <= 3)
342 ec->rx_coalesce_usecs = adapter->requested_itr;
343 else
344 ec->rx_coalesce_usecs = adapter->current_itr >> 2;
345
346 return 0;
347}
348
349static int igbvf_set_coalesce(struct net_device *netdev,
350 struct ethtool_coalesce *ec)
351{
352 struct igbvf_adapter *adapter = netdev_priv(netdev);
353 struct e1000_hw *hw = &adapter->hw;
354
355 if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) &&
356 (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) {
357 adapter->current_itr = ec->rx_coalesce_usecs << 2;
358 adapter->requested_itr = 1000000000 /
359 (adapter->current_itr * 256);
360 } else if ((ec->rx_coalesce_usecs == 3) ||
361 (ec->rx_coalesce_usecs == 2)) {
362 adapter->current_itr = IGBVF_START_ITR;
363 adapter->requested_itr = ec->rx_coalesce_usecs;
364 } else if (ec->rx_coalesce_usecs == 0) {
365 /* The user's desire is to turn off interrupt throttling
366 * altogether, but due to HW limitations, we can't do that.
367 * Instead we set a very small value in EITR, which would
368 * allow ~967k interrupts per second, but allow the adapter's
369 * internal clocking to still function properly.
370 */
371 adapter->current_itr = 4;
372 adapter->requested_itr = 1000000000 /
373 (adapter->current_itr * 256);
374 } else {
375 return -EINVAL;
376 }
377
378 writel(adapter->current_itr,
379 hw->hw_addr + adapter->rx_ring->itr_register);
380
381 return 0;
382}
383
384static int igbvf_nway_reset(struct net_device *netdev)
385{
386 struct igbvf_adapter *adapter = netdev_priv(netdev);
387
388 if (netif_running(netdev))
389 igbvf_reinit_locked(adapter);
390 return 0;
391}
392
393static void igbvf_get_ethtool_stats(struct net_device *netdev,
394 struct ethtool_stats *stats,
395 u64 *data)
396{
397 struct igbvf_adapter *adapter = netdev_priv(netdev);
398 int i;
399
400 igbvf_update_stats(adapter);
401 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
402 char *p = (char *)adapter +
403 igbvf_gstrings_stats[i].stat_offset;
404 char *b = (char *)adapter +
405 igbvf_gstrings_stats[i].base_stat_offset;
406 data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
407 sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
408 (*(u32 *)p - *(u32 *)b));
409 }
410}
411
412static int igbvf_get_sset_count(struct net_device *dev, int stringset)
413{
414 switch (stringset) {
415 case ETH_SS_TEST:
416 return IGBVF_TEST_LEN;
417 case ETH_SS_STATS:
418 return IGBVF_GLOBAL_STATS_LEN;
419 default:
420 return -EINVAL;
421 }
422}
423
424static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
425 u8 *data)
426{
427 u8 *p = data;
428 int i;
429
430 switch (stringset) {
431 case ETH_SS_TEST:
432 memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
433 break;
434 case ETH_SS_STATS:
435 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
436 memcpy(p, igbvf_gstrings_stats[i].stat_string,
437 ETH_GSTRING_LEN);
438 p += ETH_GSTRING_LEN;
439 }
440 break;
441 }
442}
443
444static const struct ethtool_ops igbvf_ethtool_ops = {
445 .get_settings = igbvf_get_settings,
446 .set_settings = igbvf_set_settings,
447 .get_drvinfo = igbvf_get_drvinfo,
448 .get_regs_len = igbvf_get_regs_len,
449 .get_regs = igbvf_get_regs,
450 .get_wol = igbvf_get_wol,
451 .set_wol = igbvf_set_wol,
452 .get_msglevel = igbvf_get_msglevel,
453 .set_msglevel = igbvf_set_msglevel,
454 .nway_reset = igbvf_nway_reset,
455 .get_link = ethtool_op_get_link,
456 .get_eeprom_len = igbvf_get_eeprom_len,
457 .get_eeprom = igbvf_get_eeprom,
458 .set_eeprom = igbvf_set_eeprom,
459 .get_ringparam = igbvf_get_ringparam,
460 .set_ringparam = igbvf_set_ringparam,
461 .get_pauseparam = igbvf_get_pauseparam,
462 .set_pauseparam = igbvf_set_pauseparam,
463 .self_test = igbvf_diag_test,
464 .get_sset_count = igbvf_get_sset_count,
465 .get_strings = igbvf_get_strings,
466 .get_ethtool_stats = igbvf_get_ethtool_stats,
467 .get_coalesce = igbvf_get_coalesce,
468 .set_coalesce = igbvf_set_coalesce,
469};
470
471void igbvf_set_ethtool_ops(struct net_device *netdev)
472{
473 netdev->ethtool_ops = &igbvf_ethtool_ops;
474}
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 strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver));
173 strlcpy(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{
180 struct igbvf_adapter *adapter = netdev_priv(netdev);
181 struct igbvf_ring *tx_ring = adapter->tx_ring;
182 struct igbvf_ring *rx_ring = adapter->rx_ring;
183
184 ring->rx_max_pending = IGBVF_MAX_RXD;
185 ring->tx_max_pending = IGBVF_MAX_TXD;
186 ring->rx_pending = rx_ring->count;
187 ring->tx_pending = tx_ring->count;
188}
189
190static int igbvf_set_ringparam(struct net_device *netdev,
191 struct ethtool_ringparam *ring)
192{
193 struct igbvf_adapter *adapter = netdev_priv(netdev);
194 struct igbvf_ring *temp_ring;
195 int err = 0;
196 u32 new_rx_count, new_tx_count;
197
198 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
199 return -EINVAL;
200
201 new_rx_count = max_t(u32, ring->rx_pending, IGBVF_MIN_RXD);
202 new_rx_count = min_t(u32, new_rx_count, IGBVF_MAX_RXD);
203 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
204
205 new_tx_count = max_t(u32, ring->tx_pending, IGBVF_MIN_TXD);
206 new_tx_count = min_t(u32, new_tx_count, IGBVF_MAX_TXD);
207 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
208
209 if ((new_tx_count == adapter->tx_ring->count) &&
210 (new_rx_count == adapter->rx_ring->count)) {
211 /* nothing to do */
212 return 0;
213 }
214
215 while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
216 usleep_range(1000, 2000);
217
218 if (!netif_running(adapter->netdev)) {
219 adapter->tx_ring->count = new_tx_count;
220 adapter->rx_ring->count = new_rx_count;
221 goto clear_reset;
222 }
223
224 temp_ring = vmalloc(sizeof(struct igbvf_ring));
225 if (!temp_ring) {
226 err = -ENOMEM;
227 goto clear_reset;
228 }
229
230 igbvf_down(adapter);
231
232 /* We can't just free everything and then setup again,
233 * because the ISRs in MSI-X mode get passed pointers
234 * to the Tx and Rx ring structs.
235 */
236 if (new_tx_count != adapter->tx_ring->count) {
237 memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
238
239 temp_ring->count = new_tx_count;
240 err = igbvf_setup_tx_resources(adapter, temp_ring);
241 if (err)
242 goto err_setup;
243
244 igbvf_free_tx_resources(adapter->tx_ring);
245
246 memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
247 }
248
249 if (new_rx_count != adapter->rx_ring->count) {
250 memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
251
252 temp_ring->count = new_rx_count;
253 err = igbvf_setup_rx_resources(adapter, temp_ring);
254 if (err)
255 goto err_setup;
256
257 igbvf_free_rx_resources(adapter->rx_ring);
258
259 memcpy(adapter->rx_ring, temp_ring, sizeof(struct igbvf_ring));
260 }
261err_setup:
262 igbvf_up(adapter);
263 vfree(temp_ring);
264clear_reset:
265 clear_bit(__IGBVF_RESETTING, &adapter->state);
266 return err;
267}
268
269static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
270{
271 struct e1000_hw *hw = &adapter->hw;
272 *data = 0;
273
274 spin_lock_bh(&hw->mbx_lock);
275
276 hw->mac.ops.check_for_link(hw);
277
278 spin_unlock_bh(&hw->mbx_lock);
279
280 if (!(er32(STATUS) & E1000_STATUS_LU))
281 *data = 1;
282
283 return *data;
284}
285
286static void igbvf_diag_test(struct net_device *netdev,
287 struct ethtool_test *eth_test, u64 *data)
288{
289 struct igbvf_adapter *adapter = netdev_priv(netdev);
290
291 set_bit(__IGBVF_TESTING, &adapter->state);
292
293 /* Link test performed before hardware reset so autoneg doesn't
294 * interfere with test result
295 */
296 if (igbvf_link_test(adapter, &data[0]))
297 eth_test->flags |= ETH_TEST_FL_FAILED;
298
299 clear_bit(__IGBVF_TESTING, &adapter->state);
300 msleep_interruptible(4 * 1000);
301}
302
303static void igbvf_get_wol(struct net_device *netdev,
304 struct ethtool_wolinfo *wol)
305{
306 wol->supported = 0;
307 wol->wolopts = 0;
308}
309
310static int igbvf_set_wol(struct net_device *netdev,
311 struct ethtool_wolinfo *wol)
312{
313 return -EOPNOTSUPP;
314}
315
316static int igbvf_get_coalesce(struct net_device *netdev,
317 struct ethtool_coalesce *ec)
318{
319 struct igbvf_adapter *adapter = netdev_priv(netdev);
320
321 if (adapter->requested_itr <= 3)
322 ec->rx_coalesce_usecs = adapter->requested_itr;
323 else
324 ec->rx_coalesce_usecs = adapter->current_itr >> 2;
325
326 return 0;
327}
328
329static int igbvf_set_coalesce(struct net_device *netdev,
330 struct ethtool_coalesce *ec)
331{
332 struct igbvf_adapter *adapter = netdev_priv(netdev);
333 struct e1000_hw *hw = &adapter->hw;
334
335 if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) &&
336 (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) {
337 adapter->current_itr = ec->rx_coalesce_usecs << 2;
338 adapter->requested_itr = 1000000000 /
339 (adapter->current_itr * 256);
340 } else if ((ec->rx_coalesce_usecs == 3) ||
341 (ec->rx_coalesce_usecs == 2)) {
342 adapter->current_itr = IGBVF_START_ITR;
343 adapter->requested_itr = ec->rx_coalesce_usecs;
344 } else if (ec->rx_coalesce_usecs == 0) {
345 /* The user's desire is to turn off interrupt throttling
346 * altogether, but due to HW limitations, we can't do that.
347 * Instead we set a very small value in EITR, which would
348 * allow ~967k interrupts per second, but allow the adapter's
349 * internal clocking to still function properly.
350 */
351 adapter->current_itr = 4;
352 adapter->requested_itr = 1000000000 /
353 (adapter->current_itr * 256);
354 } else {
355 return -EINVAL;
356 }
357
358 writel(adapter->current_itr,
359 hw->hw_addr + adapter->rx_ring->itr_register);
360
361 return 0;
362}
363
364static int igbvf_nway_reset(struct net_device *netdev)
365{
366 struct igbvf_adapter *adapter = netdev_priv(netdev);
367
368 if (netif_running(netdev))
369 igbvf_reinit_locked(adapter);
370 return 0;
371}
372
373static void igbvf_get_ethtool_stats(struct net_device *netdev,
374 struct ethtool_stats *stats,
375 u64 *data)
376{
377 struct igbvf_adapter *adapter = netdev_priv(netdev);
378 int i;
379
380 igbvf_update_stats(adapter);
381 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
382 char *p = (char *)adapter +
383 igbvf_gstrings_stats[i].stat_offset;
384 char *b = (char *)adapter +
385 igbvf_gstrings_stats[i].base_stat_offset;
386 data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
387 sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
388 (*(u32 *)p - *(u32 *)b));
389 }
390}
391
392static int igbvf_get_sset_count(struct net_device *dev, int stringset)
393{
394 switch (stringset) {
395 case ETH_SS_TEST:
396 return IGBVF_TEST_LEN;
397 case ETH_SS_STATS:
398 return IGBVF_GLOBAL_STATS_LEN;
399 default:
400 return -EINVAL;
401 }
402}
403
404static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
405 u8 *data)
406{
407 u8 *p = data;
408 int i;
409
410 switch (stringset) {
411 case ETH_SS_TEST:
412 memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
413 break;
414 case ETH_SS_STATS:
415 for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
416 memcpy(p, igbvf_gstrings_stats[i].stat_string,
417 ETH_GSTRING_LEN);
418 p += ETH_GSTRING_LEN;
419 }
420 break;
421 }
422}
423
424static const struct ethtool_ops igbvf_ethtool_ops = {
425 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS,
426 .get_drvinfo = igbvf_get_drvinfo,
427 .get_regs_len = igbvf_get_regs_len,
428 .get_regs = igbvf_get_regs,
429 .get_wol = igbvf_get_wol,
430 .set_wol = igbvf_set_wol,
431 .get_msglevel = igbvf_get_msglevel,
432 .set_msglevel = igbvf_set_msglevel,
433 .nway_reset = igbvf_nway_reset,
434 .get_link = ethtool_op_get_link,
435 .get_eeprom_len = igbvf_get_eeprom_len,
436 .get_eeprom = igbvf_get_eeprom,
437 .set_eeprom = igbvf_set_eeprom,
438 .get_ringparam = igbvf_get_ringparam,
439 .set_ringparam = igbvf_set_ringparam,
440 .get_pauseparam = igbvf_get_pauseparam,
441 .set_pauseparam = igbvf_set_pauseparam,
442 .self_test = igbvf_diag_test,
443 .get_sset_count = igbvf_get_sset_count,
444 .get_strings = igbvf_get_strings,
445 .get_ethtool_stats = igbvf_get_ethtool_stats,
446 .get_coalesce = igbvf_get_coalesce,
447 .set_coalesce = igbvf_set_coalesce,
448 .get_link_ksettings = igbvf_get_link_ksettings,
449 .set_link_ksettings = igbvf_set_link_ksettings,
450};
451
452void igbvf_set_ethtool_ops(struct net_device *netdev)
453{
454 netdev->ethtool_ops = &igbvf_ethtool_ops;
455}