1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2018, Intel Corporation. */
3
4 /* ethtool support for ice */
5
6 #include "ice.h"
7 #include "ice_lib.h"
8 #include "ice_dcb_lib.h"
9
10 struct ice_stats {
11 char stat_string[ETH_GSTRING_LEN];
12 int sizeof_stat;
13 int stat_offset;
14 };
15
16 #define ICE_STAT(_type, _name, _stat) { \
17 .stat_string = _name, \
18 .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
19 .stat_offset = offsetof(_type, _stat) \
20 }
21
22 #define ICE_VSI_STAT(_name, _stat) \
23 ICE_STAT(struct ice_vsi, _name, _stat)
24 #define ICE_PF_STAT(_name, _stat) \
25 ICE_STAT(struct ice_pf, _name, _stat)
26
ice_q_stats_len(struct net_device * netdev)27 static int ice_q_stats_len(struct net_device *netdev)
28 {
29 struct ice_netdev_priv *np = netdev_priv(netdev);
30
31 return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
32 (sizeof(struct ice_q_stats) / sizeof(u64)));
33 }
34
35 #define ICE_PF_STATS_LEN ARRAY_SIZE(ice_gstrings_pf_stats)
36 #define ICE_VSI_STATS_LEN ARRAY_SIZE(ice_gstrings_vsi_stats)
37
38 #define ICE_PFC_STATS_LEN ( \
39 (FIELD_SIZEOF(struct ice_pf, stats.priority_xoff_rx) + \
40 FIELD_SIZEOF(struct ice_pf, stats.priority_xon_rx) + \
41 FIELD_SIZEOF(struct ice_pf, stats.priority_xoff_tx) + \
42 FIELD_SIZEOF(struct ice_pf, stats.priority_xon_tx)) \
43 / sizeof(u64))
44 #define ICE_ALL_STATS_LEN(n) (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \
45 ICE_VSI_STATS_LEN + ice_q_stats_len(n))
46
47 static const struct ice_stats ice_gstrings_vsi_stats[] = {
48 ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
49 ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
50 ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
51 ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
52 ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
53 ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
54 ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
55 ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
56 ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards),
57 ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
58 ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
59 ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
60 ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
61 ICE_VSI_STAT("tx_linearize", tx_linearize),
62 };
63
64 enum ice_ethtool_test_id {
65 ICE_ETH_TEST_REG = 0,
66 ICE_ETH_TEST_EEPROM,
67 ICE_ETH_TEST_INTR,
68 ICE_ETH_TEST_LOOP,
69 ICE_ETH_TEST_LINK,
70 };
71
72 static const char ice_gstrings_test[][ETH_GSTRING_LEN] = {
73 "Register test (offline)",
74 "EEPROM test (offline)",
75 "Interrupt test (offline)",
76 "Loopback test (offline)",
77 "Link test (on/offline)",
78 };
79
80 #define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN)
81
82 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
83 * but they aren't. This device is capable of supporting multiple
84 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
85 * netdevs whereas the PF_STATs are for the physical function that's
86 * hosting these netdevs.
87 *
88 * The PF_STATs are appended to the netdev stats only when ethtool -S
89 * is queried on the base PF netdev.
90 */
91 static const struct ice_stats ice_gstrings_pf_stats[] = {
92 ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes),
93 ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes),
94 ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast),
95 ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast),
96 ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast),
97 ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast),
98 ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast),
99 ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast),
100 ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors),
101 ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64),
102 ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64),
103 ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127),
104 ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127),
105 ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255),
106 ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255),
107 ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511),
108 ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511),
109 ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023),
110 ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023),
111 ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522),
112 ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522),
113 ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big),
114 ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big),
115 ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx),
116 ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx),
117 ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx),
118 ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx),
119 ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down),
120 ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize),
121 ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments),
122 ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
123 ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
124 ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
125 ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
126 ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
127 ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
128 ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
129 ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults),
130 ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults),
131 };
132
133 static const u32 ice_regs_dump_list[] = {
134 PFGEN_STATE,
135 PRTGEN_STATUS,
136 QRX_CTRL(0),
137 QINT_TQCTL(0),
138 QINT_RQCTL(0),
139 PFINT_OICR_ENA,
140 QRX_ITR(0),
141 PF0INT_ITR_0(0),
142 PF0INT_ITR_1(0),
143 PF0INT_ITR_2(0),
144 };
145
146 struct ice_priv_flag {
147 char name[ETH_GSTRING_LEN];
148 u32 bitno; /* bit position in pf->flags */
149 };
150
151 #define ICE_PRIV_FLAG(_name, _bitno) { \
152 .name = _name, \
153 .bitno = _bitno, \
154 }
155
156 static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
157 ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
158 ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
159 };
160
161 #define ICE_PRIV_FLAG_ARRAY_SIZE ARRAY_SIZE(ice_gstrings_priv_flags)
162
163 static void
ice_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)164 ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
165 {
166 struct ice_netdev_priv *np = netdev_priv(netdev);
167 struct ice_vsi *vsi = np->vsi;
168 struct ice_pf *pf = vsi->back;
169
170 strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
171 strlcpy(drvinfo->version, ice_drv_ver, sizeof(drvinfo->version));
172 strlcpy(drvinfo->fw_version, ice_nvm_version_str(&pf->hw),
173 sizeof(drvinfo->fw_version));
174 strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
175 sizeof(drvinfo->bus_info));
176 drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE;
177 }
178
ice_get_regs_len(struct net_device __always_unused * netdev)179 static int ice_get_regs_len(struct net_device __always_unused *netdev)
180 {
181 return sizeof(ice_regs_dump_list);
182 }
183
184 static void
ice_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)185 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
186 {
187 struct ice_netdev_priv *np = netdev_priv(netdev);
188 struct ice_pf *pf = np->vsi->back;
189 struct ice_hw *hw = &pf->hw;
190 u32 *regs_buf = (u32 *)p;
191 int i;
192
193 regs->version = 1;
194
195 for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
196 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
197 }
198
ice_get_msglevel(struct net_device * netdev)199 static u32 ice_get_msglevel(struct net_device *netdev)
200 {
201 struct ice_netdev_priv *np = netdev_priv(netdev);
202 struct ice_pf *pf = np->vsi->back;
203
204 #ifndef CONFIG_DYNAMIC_DEBUG
205 if (pf->hw.debug_mask)
206 netdev_info(netdev, "hw debug_mask: 0x%llX\n",
207 pf->hw.debug_mask);
208 #endif /* !CONFIG_DYNAMIC_DEBUG */
209
210 return pf->msg_enable;
211 }
212
ice_set_msglevel(struct net_device * netdev,u32 data)213 static void ice_set_msglevel(struct net_device *netdev, u32 data)
214 {
215 struct ice_netdev_priv *np = netdev_priv(netdev);
216 struct ice_pf *pf = np->vsi->back;
217
218 #ifndef CONFIG_DYNAMIC_DEBUG
219 if (ICE_DBG_USER & data)
220 pf->hw.debug_mask = data;
221 else
222 pf->msg_enable = data;
223 #else
224 pf->msg_enable = data;
225 #endif /* !CONFIG_DYNAMIC_DEBUG */
226 }
227
ice_get_eeprom_len(struct net_device * netdev)228 static int ice_get_eeprom_len(struct net_device *netdev)
229 {
230 struct ice_netdev_priv *np = netdev_priv(netdev);
231 struct ice_pf *pf = np->vsi->back;
232
233 return (int)(pf->hw.nvm.sr_words * sizeof(u16));
234 }
235
236 static int
ice_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)237 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
238 u8 *bytes)
239 {
240 struct ice_netdev_priv *np = netdev_priv(netdev);
241 u16 first_word, last_word, nwords;
242 struct ice_vsi *vsi = np->vsi;
243 struct ice_pf *pf = vsi->back;
244 struct ice_hw *hw = &pf->hw;
245 enum ice_status status;
246 struct device *dev;
247 int ret = 0;
248 u16 *buf;
249
250 dev = &pf->pdev->dev;
251
252 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
253
254 first_word = eeprom->offset >> 1;
255 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
256 nwords = last_word - first_word + 1;
257
258 buf = devm_kcalloc(dev, nwords, sizeof(u16), GFP_KERNEL);
259 if (!buf)
260 return -ENOMEM;
261
262 status = ice_read_sr_buf(hw, first_word, &nwords, buf);
263 if (status) {
264 dev_err(dev, "ice_read_sr_buf failed, err %d aq_err %d\n",
265 status, hw->adminq.sq_last_status);
266 eeprom->len = sizeof(u16) * nwords;
267 ret = -EIO;
268 goto out;
269 }
270
271 memcpy(bytes, (u8 *)buf + (eeprom->offset & 1), eeprom->len);
272 out:
273 devm_kfree(dev, buf);
274 return ret;
275 }
276
277 /**
278 * ice_active_vfs - check if there are any active VFs
279 * @pf: board private structure
280 *
281 * Returns true if an active VF is found, otherwise returns false
282 */
ice_active_vfs(struct ice_pf * pf)283 static bool ice_active_vfs(struct ice_pf *pf)
284 {
285 struct ice_vf *vf = pf->vf;
286 int i;
287
288 for (i = 0; i < pf->num_alloc_vfs; i++, vf++)
289 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
290 return true;
291 return false;
292 }
293
294 /**
295 * ice_link_test - perform a link test on a given net_device
296 * @netdev: network interface device structure
297 *
298 * This function performs one of the self-tests required by ethtool.
299 * Returns 0 on success, non-zero on failure.
300 */
ice_link_test(struct net_device * netdev)301 static u64 ice_link_test(struct net_device *netdev)
302 {
303 struct ice_netdev_priv *np = netdev_priv(netdev);
304 enum ice_status status;
305 bool link_up = false;
306
307 netdev_info(netdev, "link test\n");
308 status = ice_get_link_status(np->vsi->port_info, &link_up);
309 if (status) {
310 netdev_err(netdev, "link query error, status = %d\n", status);
311 return 1;
312 }
313
314 if (!link_up)
315 return 2;
316
317 return 0;
318 }
319
320 /**
321 * ice_eeprom_test - perform an EEPROM test on a given net_device
322 * @netdev: network interface device structure
323 *
324 * This function performs one of the self-tests required by ethtool.
325 * Returns 0 on success, non-zero on failure.
326 */
ice_eeprom_test(struct net_device * netdev)327 static u64 ice_eeprom_test(struct net_device *netdev)
328 {
329 struct ice_netdev_priv *np = netdev_priv(netdev);
330 struct ice_pf *pf = np->vsi->back;
331
332 netdev_info(netdev, "EEPROM test\n");
333 return !!(ice_nvm_validate_checksum(&pf->hw));
334 }
335
336 /**
337 * ice_reg_pattern_test
338 * @hw: pointer to the HW struct
339 * @reg: reg to be tested
340 * @mask: bits to be touched
341 */
ice_reg_pattern_test(struct ice_hw * hw,u32 reg,u32 mask)342 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask)
343 {
344 struct ice_pf *pf = (struct ice_pf *)hw->back;
345 static const u32 patterns[] = {
346 0x5A5A5A5A, 0xA5A5A5A5,
347 0x00000000, 0xFFFFFFFF
348 };
349 u32 val, orig_val;
350 int i;
351
352 orig_val = rd32(hw, reg);
353 for (i = 0; i < ARRAY_SIZE(patterns); ++i) {
354 u32 pattern = patterns[i] & mask;
355
356 wr32(hw, reg, pattern);
357 val = rd32(hw, reg);
358 if (val == pattern)
359 continue;
360 dev_err(&pf->pdev->dev,
361 "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n"
362 , __func__, reg, pattern, val);
363 return 1;
364 }
365
366 wr32(hw, reg, orig_val);
367 val = rd32(hw, reg);
368 if (val != orig_val) {
369 dev_err(&pf->pdev->dev,
370 "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n"
371 , __func__, reg, orig_val, val);
372 return 1;
373 }
374
375 return 0;
376 }
377
378 /**
379 * ice_reg_test - perform a register test on a given net_device
380 * @netdev: network interface device structure
381 *
382 * This function performs one of the self-tests required by ethtool.
383 * Returns 0 on success, non-zero on failure.
384 */
ice_reg_test(struct net_device * netdev)385 static u64 ice_reg_test(struct net_device *netdev)
386 {
387 struct ice_netdev_priv *np = netdev_priv(netdev);
388 struct ice_hw *hw = np->vsi->port_info->hw;
389 u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ?
390 hw->func_caps.common_cap.num_msix_vectors - 1 : 1;
391 struct ice_diag_reg_test_info {
392 u32 address;
393 u32 mask;
394 u32 elem_num;
395 u32 elem_size;
396 } ice_reg_list[] = {
397 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
398 GLINT_ITR(0, 1) - GLINT_ITR(0, 0)},
399 {GLINT_ITR(1, 0), 0x00000fff, int_elements,
400 GLINT_ITR(1, 1) - GLINT_ITR(1, 0)},
401 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
402 GLINT_ITR(2, 1) - GLINT_ITR(2, 0)},
403 {GLINT_CTL, 0xffff0001, 1, 0}
404 };
405 int i;
406
407 netdev_dbg(netdev, "Register test\n");
408 for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) {
409 u32 j;
410
411 for (j = 0; j < ice_reg_list[i].elem_num; ++j) {
412 u32 mask = ice_reg_list[i].mask;
413 u32 reg = ice_reg_list[i].address +
414 (j * ice_reg_list[i].elem_size);
415
416 /* bail on failure (non-zero return) */
417 if (ice_reg_pattern_test(hw, reg, mask))
418 return 1;
419 }
420 }
421
422 return 0;
423 }
424
425 /**
426 * ice_lbtest_prepare_rings - configure Tx/Rx test rings
427 * @vsi: pointer to the VSI structure
428 *
429 * Function configures rings of a VSI for loopback test without
430 * enabling interrupts or informing the kernel about new queues.
431 *
432 * Returns 0 on success, negative on failure.
433 */
ice_lbtest_prepare_rings(struct ice_vsi * vsi)434 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi)
435 {
436 int status;
437
438 status = ice_vsi_setup_tx_rings(vsi);
439 if (status)
440 goto err_setup_tx_ring;
441
442 status = ice_vsi_setup_rx_rings(vsi);
443 if (status)
444 goto err_setup_rx_ring;
445
446 status = ice_vsi_cfg(vsi);
447 if (status)
448 goto err_setup_rx_ring;
449
450 status = ice_vsi_start_rx_rings(vsi);
451 if (status)
452 goto err_start_rx_ring;
453
454 return status;
455
456 err_start_rx_ring:
457 ice_vsi_free_rx_rings(vsi);
458 err_setup_rx_ring:
459 ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
460 err_setup_tx_ring:
461 ice_vsi_free_tx_rings(vsi);
462
463 return status;
464 }
465
466 /**
467 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test
468 * @vsi: pointer to the VSI structure
469 *
470 * Function stops and frees VSI rings after a loopback test.
471 * Returns 0 on success, negative on failure.
472 */
ice_lbtest_disable_rings(struct ice_vsi * vsi)473 static int ice_lbtest_disable_rings(struct ice_vsi *vsi)
474 {
475 int status;
476
477 status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
478 if (status)
479 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n",
480 vsi->vsi_num, status);
481
482 status = ice_vsi_stop_rx_rings(vsi);
483 if (status)
484 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n",
485 vsi->vsi_num, status);
486
487 ice_vsi_free_tx_rings(vsi);
488 ice_vsi_free_rx_rings(vsi);
489
490 return status;
491 }
492
493 /**
494 * ice_lbtest_create_frame - create test packet
495 * @pf: pointer to the PF structure
496 * @ret_data: allocated frame buffer
497 * @size: size of the packet data
498 *
499 * Function allocates a frame with a test pattern on specific offsets.
500 * Returns 0 on success, non-zero on failure.
501 */
ice_lbtest_create_frame(struct ice_pf * pf,u8 ** ret_data,u16 size)502 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size)
503 {
504 u8 *data;
505
506 if (!pf)
507 return -EINVAL;
508
509 data = devm_kzalloc(&pf->pdev->dev, size, GFP_KERNEL);
510 if (!data)
511 return -ENOMEM;
512
513 /* Since the ethernet test frame should always be at least
514 * 64 bytes long, fill some octets in the payload with test data.
515 */
516 memset(data, 0xFF, size);
517 data[32] = 0xDE;
518 data[42] = 0xAD;
519 data[44] = 0xBE;
520 data[46] = 0xEF;
521
522 *ret_data = data;
523
524 return 0;
525 }
526
527 /**
528 * ice_lbtest_check_frame - verify received loopback frame
529 * @frame: pointer to the raw packet data
530 *
531 * Function verifies received test frame with a pattern.
532 * Returns true if frame matches the pattern, false otherwise.
533 */
ice_lbtest_check_frame(u8 * frame)534 static bool ice_lbtest_check_frame(u8 *frame)
535 {
536 /* Validate bytes of a frame under offsets chosen earlier */
537 if (frame[32] == 0xDE &&
538 frame[42] == 0xAD &&
539 frame[44] == 0xBE &&
540 frame[46] == 0xEF &&
541 frame[48] == 0xFF)
542 return true;
543
544 return false;
545 }
546
547 /**
548 * ice_diag_send - send test frames to the test ring
549 * @tx_ring: pointer to the transmit ring
550 * @data: pointer to the raw packet data
551 * @size: size of the packet to send
552 *
553 * Function sends loopback packets on a test Tx ring.
554 */
ice_diag_send(struct ice_ring * tx_ring,u8 * data,u16 size)555 static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size)
556 {
557 struct ice_tx_desc *tx_desc;
558 struct ice_tx_buf *tx_buf;
559 dma_addr_t dma;
560 u64 td_cmd;
561
562 tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use);
563 tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use];
564
565 dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE);
566 if (dma_mapping_error(tx_ring->dev, dma))
567 return -EINVAL;
568
569 tx_desc->buf_addr = cpu_to_le64(dma);
570
571 /* These flags are required for a descriptor to be pushed out */
572 td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS);
573 tx_desc->cmd_type_offset_bsz =
574 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA |
575 (td_cmd << ICE_TXD_QW1_CMD_S) |
576 ((u64)0 << ICE_TXD_QW1_OFFSET_S) |
577 ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
578 ((u64)0 << ICE_TXD_QW1_L2TAG1_S));
579
580 tx_buf->next_to_watch = tx_desc;
581
582 /* Force memory write to complete before letting h/w know
583 * there are new descriptors to fetch.
584 */
585 wmb();
586
587 tx_ring->next_to_use++;
588 if (tx_ring->next_to_use >= tx_ring->count)
589 tx_ring->next_to_use = 0;
590
591 writel_relaxed(tx_ring->next_to_use, tx_ring->tail);
592
593 /* Wait until the packets get transmitted to the receive queue. */
594 usleep_range(1000, 2000);
595 dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE);
596
597 return 0;
598 }
599
600 #define ICE_LB_FRAME_SIZE 64
601 /**
602 * ice_lbtest_receive_frames - receive and verify test frames
603 * @rx_ring: pointer to the receive ring
604 *
605 * Function receives loopback packets and verify their correctness.
606 * Returns number of received valid frames.
607 */
ice_lbtest_receive_frames(struct ice_ring * rx_ring)608 static int ice_lbtest_receive_frames(struct ice_ring *rx_ring)
609 {
610 struct ice_rx_buf *rx_buf;
611 int valid_frames, i;
612 u8 *received_buf;
613
614 valid_frames = 0;
615
616 for (i = 0; i < rx_ring->count; i++) {
617 union ice_32b_rx_flex_desc *rx_desc;
618
619 rx_desc = ICE_RX_DESC(rx_ring, i);
620
621 if (!(rx_desc->wb.status_error0 &
622 cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS)))
623 continue;
624
625 rx_buf = &rx_ring->rx_buf[i];
626 received_buf = page_address(rx_buf->page);
627
628 if (ice_lbtest_check_frame(received_buf))
629 valid_frames++;
630 }
631
632 return valid_frames;
633 }
634
635 /**
636 * ice_loopback_test - perform a loopback test on a given net_device
637 * @netdev: network interface device structure
638 *
639 * This function performs one of the self-tests required by ethtool.
640 * Returns 0 on success, non-zero on failure.
641 */
ice_loopback_test(struct net_device * netdev)642 static u64 ice_loopback_test(struct net_device *netdev)
643 {
644 struct ice_netdev_priv *np = netdev_priv(netdev);
645 struct ice_vsi *orig_vsi = np->vsi, *test_vsi;
646 struct ice_pf *pf = orig_vsi->back;
647 struct ice_ring *tx_ring, *rx_ring;
648 u8 broadcast[ETH_ALEN], ret = 0;
649 int num_frames, valid_frames;
650 LIST_HEAD(tmp_list);
651 u8 *tx_frame;
652 int i;
653
654 netdev_info(netdev, "loopback test\n");
655
656 test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info);
657 if (!test_vsi) {
658 netdev_err(netdev, "Failed to create a VSI for the loopback test");
659 return 1;
660 }
661
662 test_vsi->netdev = netdev;
663 tx_ring = test_vsi->tx_rings[0];
664 rx_ring = test_vsi->rx_rings[0];
665
666 if (ice_lbtest_prepare_rings(test_vsi)) {
667 ret = 2;
668 goto lbtest_vsi_close;
669 }
670
671 if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) {
672 ret = 3;
673 goto lbtest_rings_dis;
674 }
675
676 /* Enable MAC loopback in firmware */
677 if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) {
678 ret = 4;
679 goto lbtest_mac_dis;
680 }
681
682 /* Test VSI needs to receive broadcast packets */
683 eth_broadcast_addr(broadcast);
684 if (ice_add_mac_to_list(test_vsi, &tmp_list, broadcast)) {
685 ret = 5;
686 goto lbtest_mac_dis;
687 }
688
689 if (ice_add_mac(&pf->hw, &tmp_list)) {
690 ret = 6;
691 goto free_mac_list;
692 }
693
694 if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) {
695 ret = 7;
696 goto remove_mac_filters;
697 }
698
699 num_frames = min_t(int, tx_ring->count, 32);
700 for (i = 0; i < num_frames; i++) {
701 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) {
702 ret = 8;
703 goto lbtest_free_frame;
704 }
705 }
706
707 valid_frames = ice_lbtest_receive_frames(rx_ring);
708 if (!valid_frames)
709 ret = 9;
710 else if (valid_frames != num_frames)
711 ret = 10;
712
713 lbtest_free_frame:
714 devm_kfree(&pf->pdev->dev, tx_frame);
715 remove_mac_filters:
716 if (ice_remove_mac(&pf->hw, &tmp_list))
717 netdev_err(netdev, "Could not remove MAC filter for the test VSI");
718 free_mac_list:
719 ice_free_fltr_list(&pf->pdev->dev, &tmp_list);
720 lbtest_mac_dis:
721 /* Disable MAC loopback after the test is completed. */
722 if (ice_aq_set_mac_loopback(&pf->hw, false, NULL))
723 netdev_err(netdev, "Could not disable MAC loopback\n");
724 lbtest_rings_dis:
725 if (ice_lbtest_disable_rings(test_vsi))
726 netdev_err(netdev, "Could not disable test rings\n");
727 lbtest_vsi_close:
728 test_vsi->netdev = NULL;
729 if (ice_vsi_release(test_vsi))
730 netdev_err(netdev, "Failed to remove the test VSI");
731
732 return ret;
733 }
734
735 /**
736 * ice_intr_test - perform an interrupt test on a given net_device
737 * @netdev: network interface device structure
738 *
739 * This function performs one of the self-tests required by ethtool.
740 * Returns 0 on success, non-zero on failure.
741 */
ice_intr_test(struct net_device * netdev)742 static u64 ice_intr_test(struct net_device *netdev)
743 {
744 struct ice_netdev_priv *np = netdev_priv(netdev);
745 struct ice_pf *pf = np->vsi->back;
746 u16 swic_old = pf->sw_int_count;
747
748 netdev_info(netdev, "interrupt test\n");
749
750 wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx),
751 GLINT_DYN_CTL_SW_ITR_INDX_M |
752 GLINT_DYN_CTL_INTENA_MSK_M |
753 GLINT_DYN_CTL_SWINT_TRIG_M);
754
755 usleep_range(1000, 2000);
756 return (swic_old == pf->sw_int_count);
757 }
758
759 /**
760 * ice_self_test - handler function for performing a self-test by ethtool
761 * @netdev: network interface device structure
762 * @eth_test: ethtool_test structure
763 * @data: required by ethtool.self_test
764 *
765 * This function is called after invoking 'ethtool -t devname' command where
766 * devname is the name of the network device on which ethtool should operate.
767 * It performs a set of self-tests to check if a device works properly.
768 */
769 static void
ice_self_test(struct net_device * netdev,struct ethtool_test * eth_test,u64 * data)770 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
771 u64 *data)
772 {
773 struct ice_netdev_priv *np = netdev_priv(netdev);
774 bool if_running = netif_running(netdev);
775 struct ice_pf *pf = np->vsi->back;
776
777 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
778 netdev_info(netdev, "offline testing starting\n");
779
780 set_bit(__ICE_TESTING, pf->state);
781
782 if (ice_active_vfs(pf)) {
783 dev_warn(&pf->pdev->dev,
784 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
785 data[ICE_ETH_TEST_REG] = 1;
786 data[ICE_ETH_TEST_EEPROM] = 1;
787 data[ICE_ETH_TEST_INTR] = 1;
788 data[ICE_ETH_TEST_LOOP] = 1;
789 data[ICE_ETH_TEST_LINK] = 1;
790 eth_test->flags |= ETH_TEST_FL_FAILED;
791 clear_bit(__ICE_TESTING, pf->state);
792 goto skip_ol_tests;
793 }
794 /* If the device is online then take it offline */
795 if (if_running)
796 /* indicate we're in test mode */
797 ice_stop(netdev);
798
799 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
800 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev);
801 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev);
802 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev);
803 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev);
804
805 if (data[ICE_ETH_TEST_LINK] ||
806 data[ICE_ETH_TEST_EEPROM] ||
807 data[ICE_ETH_TEST_LOOP] ||
808 data[ICE_ETH_TEST_INTR] ||
809 data[ICE_ETH_TEST_REG])
810 eth_test->flags |= ETH_TEST_FL_FAILED;
811
812 clear_bit(__ICE_TESTING, pf->state);
813
814 if (if_running) {
815 int status = ice_open(netdev);
816
817 if (status) {
818 dev_err(&pf->pdev->dev,
819 "Could not open device %s, err %d",
820 pf->int_name, status);
821 }
822 }
823 } else {
824 /* Online tests */
825 netdev_info(netdev, "online testing starting\n");
826
827 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
828 if (data[ICE_ETH_TEST_LINK])
829 eth_test->flags |= ETH_TEST_FL_FAILED;
830
831 /* Offline only tests, not run in online; pass by default */
832 data[ICE_ETH_TEST_REG] = 0;
833 data[ICE_ETH_TEST_EEPROM] = 0;
834 data[ICE_ETH_TEST_INTR] = 0;
835 data[ICE_ETH_TEST_LOOP] = 0;
836 }
837
838 skip_ol_tests:
839 netdev_info(netdev, "testing finished\n");
840 }
841
ice_get_strings(struct net_device * netdev,u32 stringset,u8 * data)842 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
843 {
844 struct ice_netdev_priv *np = netdev_priv(netdev);
845 struct ice_vsi *vsi = np->vsi;
846 char *p = (char *)data;
847 unsigned int i;
848
849 switch (stringset) {
850 case ETH_SS_STATS:
851 for (i = 0; i < ICE_VSI_STATS_LEN; i++) {
852 snprintf(p, ETH_GSTRING_LEN, "%s",
853 ice_gstrings_vsi_stats[i].stat_string);
854 p += ETH_GSTRING_LEN;
855 }
856
857 ice_for_each_alloc_txq(vsi, i) {
858 snprintf(p, ETH_GSTRING_LEN,
859 "tx_queue_%u_packets", i);
860 p += ETH_GSTRING_LEN;
861 snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i);
862 p += ETH_GSTRING_LEN;
863 }
864
865 ice_for_each_alloc_rxq(vsi, i) {
866 snprintf(p, ETH_GSTRING_LEN,
867 "rx_queue_%u_packets", i);
868 p += ETH_GSTRING_LEN;
869 snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i);
870 p += ETH_GSTRING_LEN;
871 }
872
873 if (vsi->type != ICE_VSI_PF)
874 return;
875
876 for (i = 0; i < ICE_PF_STATS_LEN; i++) {
877 snprintf(p, ETH_GSTRING_LEN, "%s",
878 ice_gstrings_pf_stats[i].stat_string);
879 p += ETH_GSTRING_LEN;
880 }
881
882 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
883 snprintf(p, ETH_GSTRING_LEN,
884 "tx_priority_%u_xon.nic", i);
885 p += ETH_GSTRING_LEN;
886 snprintf(p, ETH_GSTRING_LEN,
887 "tx_priority_%u_xoff.nic", i);
888 p += ETH_GSTRING_LEN;
889 }
890 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
891 snprintf(p, ETH_GSTRING_LEN,
892 "rx_priority_%u_xon.nic", i);
893 p += ETH_GSTRING_LEN;
894 snprintf(p, ETH_GSTRING_LEN,
895 "rx_priority_%u_xoff.nic", i);
896 p += ETH_GSTRING_LEN;
897 }
898 break;
899 case ETH_SS_TEST:
900 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN);
901 break;
902 case ETH_SS_PRIV_FLAGS:
903 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
904 snprintf(p, ETH_GSTRING_LEN, "%s",
905 ice_gstrings_priv_flags[i].name);
906 p += ETH_GSTRING_LEN;
907 }
908 break;
909 default:
910 break;
911 }
912 }
913
914 static int
ice_set_phys_id(struct net_device * netdev,enum ethtool_phys_id_state state)915 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
916 {
917 struct ice_netdev_priv *np = netdev_priv(netdev);
918 bool led_active;
919
920 switch (state) {
921 case ETHTOOL_ID_ACTIVE:
922 led_active = true;
923 break;
924 case ETHTOOL_ID_INACTIVE:
925 led_active = false;
926 break;
927 default:
928 return -EINVAL;
929 }
930
931 if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL))
932 return -EIO;
933
934 return 0;
935 }
936
937 /**
938 * ice_set_fec_cfg - Set link FEC options
939 * @netdev: network interface device structure
940 * @req_fec: FEC mode to configure
941 */
ice_set_fec_cfg(struct net_device * netdev,enum ice_fec_mode req_fec)942 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec)
943 {
944 struct ice_netdev_priv *np = netdev_priv(netdev);
945 struct ice_aqc_set_phy_cfg_data config = { 0 };
946 struct ice_aqc_get_phy_caps_data *caps;
947 struct ice_vsi *vsi = np->vsi;
948 u8 sw_cfg_caps, sw_cfg_fec;
949 struct ice_port_info *pi;
950 enum ice_status status;
951 int err = 0;
952
953 pi = vsi->port_info;
954 if (!pi)
955 return -EOPNOTSUPP;
956
957 /* Changing the FEC parameters is not supported if not the PF VSI */
958 if (vsi->type != ICE_VSI_PF) {
959 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n");
960 return -EOPNOTSUPP;
961 }
962
963 /* Get last SW configuration */
964 caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL);
965 if (!caps)
966 return -ENOMEM;
967
968 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG,
969 caps, NULL);
970 if (status) {
971 err = -EAGAIN;
972 goto done;
973 }
974
975 /* Copy SW configuration returned from PHY caps to PHY config */
976 ice_copy_phy_caps_to_cfg(caps, &config);
977 sw_cfg_caps = caps->caps;
978 sw_cfg_fec = caps->link_fec_options;
979
980 /* Get toloplogy caps, then copy PHY FEC topoloy caps to PHY config */
981 memset(caps, 0, sizeof(*caps));
982
983 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
984 caps, NULL);
985 if (status) {
986 err = -EAGAIN;
987 goto done;
988 }
989
990 config.caps |= (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC);
991 config.link_fec_opt = caps->link_fec_options;
992
993 ice_cfg_phy_fec(&config, req_fec);
994
995 /* If FEC mode has changed, then set PHY configuration and enable AN. */
996 if ((config.caps & ICE_AQ_PHY_ENA_AUTO_FEC) !=
997 (sw_cfg_caps & ICE_AQC_PHY_EN_AUTO_FEC) ||
998 config.link_fec_opt != sw_cfg_fec) {
999 if (caps->caps & ICE_AQC_PHY_AN_MODE)
1000 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
1001
1002 status = ice_aq_set_phy_cfg(pi->hw, pi->lport, &config, NULL);
1003
1004 if (status)
1005 err = -EAGAIN;
1006 }
1007
1008 done:
1009 devm_kfree(&vsi->back->pdev->dev, caps);
1010 return err;
1011 }
1012
1013 /**
1014 * ice_set_fecparam - Set FEC link options
1015 * @netdev: network interface device structure
1016 * @fecparam: Ethtool structure to retrieve FEC parameters
1017 */
1018 static int
ice_set_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1019 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1020 {
1021 struct ice_netdev_priv *np = netdev_priv(netdev);
1022 struct ice_vsi *vsi = np->vsi;
1023 enum ice_fec_mode fec;
1024
1025 switch (fecparam->fec) {
1026 case ETHTOOL_FEC_AUTO:
1027 fec = ICE_FEC_AUTO;
1028 break;
1029 case ETHTOOL_FEC_RS:
1030 fec = ICE_FEC_RS;
1031 break;
1032 case ETHTOOL_FEC_BASER:
1033 fec = ICE_FEC_BASER;
1034 break;
1035 case ETHTOOL_FEC_OFF:
1036 case ETHTOOL_FEC_NONE:
1037 fec = ICE_FEC_NONE;
1038 break;
1039 default:
1040 dev_warn(&vsi->back->pdev->dev, "Unsupported FEC mode: %d\n",
1041 fecparam->fec);
1042 return -EINVAL;
1043 }
1044
1045 return ice_set_fec_cfg(netdev, fec);
1046 }
1047
1048 /**
1049 * ice_get_fecparam - Get link FEC options
1050 * @netdev: network interface device structure
1051 * @fecparam: Ethtool structure to retrieve FEC parameters
1052 */
1053 static int
ice_get_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1054 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1055 {
1056 struct ice_netdev_priv *np = netdev_priv(netdev);
1057 struct ice_aqc_get_phy_caps_data *caps;
1058 struct ice_link_status *link_info;
1059 struct ice_vsi *vsi = np->vsi;
1060 struct ice_port_info *pi;
1061 enum ice_status status;
1062 int err = 0;
1063
1064 pi = vsi->port_info;
1065
1066 if (!pi)
1067 return -EOPNOTSUPP;
1068 link_info = &pi->phy.link_info;
1069
1070 /* Set FEC mode based on negotiated link info */
1071 switch (link_info->fec_info) {
1072 case ICE_AQ_LINK_25G_KR_FEC_EN:
1073 fecparam->active_fec = ETHTOOL_FEC_BASER;
1074 break;
1075 case ICE_AQ_LINK_25G_RS_528_FEC_EN:
1076 /* fall through */
1077 case ICE_AQ_LINK_25G_RS_544_FEC_EN:
1078 fecparam->active_fec = ETHTOOL_FEC_RS;
1079 break;
1080 default:
1081 fecparam->active_fec = ETHTOOL_FEC_OFF;
1082 break;
1083 }
1084
1085 caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL);
1086 if (!caps)
1087 return -ENOMEM;
1088
1089 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
1090 caps, NULL);
1091 if (status) {
1092 err = -EAGAIN;
1093 goto done;
1094 }
1095
1096 /* Set supported/configured FEC modes based on PHY capability */
1097 if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC)
1098 fecparam->fec |= ETHTOOL_FEC_AUTO;
1099 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
1100 caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1101 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN ||
1102 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1103 fecparam->fec |= ETHTOOL_FEC_BASER;
1104 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1105 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ ||
1106 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
1107 fecparam->fec |= ETHTOOL_FEC_RS;
1108 if (caps->link_fec_options == 0)
1109 fecparam->fec |= ETHTOOL_FEC_OFF;
1110
1111 done:
1112 devm_kfree(&vsi->back->pdev->dev, caps);
1113 return err;
1114 }
1115
1116 /**
1117 * ice_get_priv_flags - report device private flags
1118 * @netdev: network interface device structure
1119 *
1120 * The get string set count and the string set should be matched for each
1121 * flag returned. Add new strings for each flag to the ice_gstrings_priv_flags
1122 * array.
1123 *
1124 * Returns a u32 bitmap of flags.
1125 */
ice_get_priv_flags(struct net_device * netdev)1126 static u32 ice_get_priv_flags(struct net_device *netdev)
1127 {
1128 struct ice_netdev_priv *np = netdev_priv(netdev);
1129 struct ice_vsi *vsi = np->vsi;
1130 struct ice_pf *pf = vsi->back;
1131 u32 i, ret_flags = 0;
1132
1133 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1134 const struct ice_priv_flag *priv_flag;
1135
1136 priv_flag = &ice_gstrings_priv_flags[i];
1137
1138 if (test_bit(priv_flag->bitno, pf->flags))
1139 ret_flags |= BIT(i);
1140 }
1141
1142 return ret_flags;
1143 }
1144
1145 /**
1146 * ice_set_priv_flags - set private flags
1147 * @netdev: network interface device structure
1148 * @flags: bit flags to be set
1149 */
ice_set_priv_flags(struct net_device * netdev,u32 flags)1150 static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
1151 {
1152 struct ice_netdev_priv *np = netdev_priv(netdev);
1153 DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS);
1154 DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS);
1155 struct ice_vsi *vsi = np->vsi;
1156 struct ice_pf *pf = vsi->back;
1157 int ret = 0;
1158 u32 i;
1159
1160 if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE))
1161 return -EINVAL;
1162
1163 set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1164
1165 bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS);
1166 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1167 const struct ice_priv_flag *priv_flag;
1168
1169 priv_flag = &ice_gstrings_priv_flags[i];
1170
1171 if (flags & BIT(i))
1172 set_bit(priv_flag->bitno, pf->flags);
1173 else
1174 clear_bit(priv_flag->bitno, pf->flags);
1175 }
1176
1177 bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS);
1178
1179 if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) {
1180 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) {
1181 enum ice_status status;
1182
1183 /* Disable FW LLDP engine */
1184 status = ice_cfg_lldp_mib_change(&pf->hw, false);
1185
1186 /* If unregistering for LLDP events fails, this is
1187 * not an error state, as there shouldn't be any
1188 * events to respond to.
1189 */
1190 if (status)
1191 dev_info(&pf->pdev->dev,
1192 "Failed to unreg for LLDP events\n");
1193
1194 /* The AQ call to stop the FW LLDP agent will generate
1195 * an error if the agent is already stopped.
1196 */
1197 status = ice_aq_stop_lldp(&pf->hw, true, true, NULL);
1198 if (status)
1199 dev_warn(&pf->pdev->dev,
1200 "Fail to stop LLDP agent\n");
1201 /* Use case for having the FW LLDP agent stopped
1202 * will likely not need DCB, so failure to init is
1203 * not a concern of ethtool
1204 */
1205 status = ice_init_pf_dcb(pf, true);
1206 if (status)
1207 dev_warn(&pf->pdev->dev, "Fail to init DCB\n");
1208
1209 /* Forward LLDP packets to default VSI so that they
1210 * are passed up the stack
1211 */
1212 ice_cfg_sw_lldp(vsi, false, true);
1213 } else {
1214 enum ice_status status;
1215 bool dcbx_agent_status;
1216
1217 /* AQ command to start FW LLDP agent will return an
1218 * error if the agent is already started
1219 */
1220 status = ice_aq_start_lldp(&pf->hw, true, NULL);
1221 if (status)
1222 dev_warn(&pf->pdev->dev,
1223 "Fail to start LLDP Agent\n");
1224
1225 /* AQ command to start FW DCBX agent will fail if
1226 * the agent is already started
1227 */
1228 status = ice_aq_start_stop_dcbx(&pf->hw, true,
1229 &dcbx_agent_status,
1230 NULL);
1231 if (status)
1232 dev_dbg(&pf->pdev->dev,
1233 "Failed to start FW DCBX\n");
1234
1235 dev_info(&pf->pdev->dev, "FW DCBX agent is %s\n",
1236 dcbx_agent_status ? "ACTIVE" : "DISABLED");
1237
1238 /* Failure to configure MIB change or init DCB is not
1239 * relevant to ethtool. Print notification that
1240 * registration/init failed but do not return error
1241 * state to ethtool
1242 */
1243 status = ice_init_pf_dcb(pf, true);
1244 if (status)
1245 dev_dbg(&pf->pdev->dev, "Fail to init DCB\n");
1246
1247 /* Remove rule to direct LLDP packets to default VSI.
1248 * The FW LLDP engine will now be consuming them.
1249 */
1250 ice_cfg_sw_lldp(vsi, false, false);
1251
1252 /* Register for MIB change events */
1253 status = ice_cfg_lldp_mib_change(&pf->hw, true);
1254 if (status)
1255 dev_dbg(&pf->pdev->dev,
1256 "Fail to enable MIB change events\n");
1257 }
1258 }
1259 clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1260 return ret;
1261 }
1262
ice_get_sset_count(struct net_device * netdev,int sset)1263 static int ice_get_sset_count(struct net_device *netdev, int sset)
1264 {
1265 switch (sset) {
1266 case ETH_SS_STATS:
1267 /* The number (and order) of strings reported *must* remain
1268 * constant for a given netdevice. This function must not
1269 * report a different number based on run time parameters
1270 * (such as the number of queues in use, or the setting of
1271 * a private ethtool flag). This is due to the nature of the
1272 * ethtool stats API.
1273 *
1274 * Userspace programs such as ethtool must make 3 separate
1275 * ioctl requests, one for size, one for the strings, and
1276 * finally one for the stats. Since these cross into
1277 * userspace, changes to the number or size could result in
1278 * undefined memory access or incorrect string<->value
1279 * correlations for statistics.
1280 *
1281 * Even if it appears to be safe, changes to the size or
1282 * order of strings will suffer from race conditions and are
1283 * not safe.
1284 */
1285 return ICE_ALL_STATS_LEN(netdev);
1286 case ETH_SS_TEST:
1287 return ICE_TEST_LEN;
1288 case ETH_SS_PRIV_FLAGS:
1289 return ICE_PRIV_FLAG_ARRAY_SIZE;
1290 default:
1291 return -EOPNOTSUPP;
1292 }
1293 }
1294
1295 static void
ice_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats __always_unused * stats,u64 * data)1296 ice_get_ethtool_stats(struct net_device *netdev,
1297 struct ethtool_stats __always_unused *stats, u64 *data)
1298 {
1299 struct ice_netdev_priv *np = netdev_priv(netdev);
1300 struct ice_vsi *vsi = np->vsi;
1301 struct ice_pf *pf = vsi->back;
1302 struct ice_ring *ring;
1303 unsigned int j;
1304 int i = 0;
1305 char *p;
1306
1307 ice_update_pf_stats(pf);
1308 ice_update_vsi_stats(vsi);
1309
1310 for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
1311 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
1312 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
1313 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1314 }
1315
1316 /* populate per queue stats */
1317 rcu_read_lock();
1318
1319 ice_for_each_alloc_txq(vsi, j) {
1320 ring = READ_ONCE(vsi->tx_rings[j]);
1321 if (ring) {
1322 data[i++] = ring->stats.pkts;
1323 data[i++] = ring->stats.bytes;
1324 } else {
1325 data[i++] = 0;
1326 data[i++] = 0;
1327 }
1328 }
1329
1330 ice_for_each_alloc_rxq(vsi, j) {
1331 ring = READ_ONCE(vsi->rx_rings[j]);
1332 if (ring) {
1333 data[i++] = ring->stats.pkts;
1334 data[i++] = ring->stats.bytes;
1335 } else {
1336 data[i++] = 0;
1337 data[i++] = 0;
1338 }
1339 }
1340
1341 rcu_read_unlock();
1342
1343 if (vsi->type != ICE_VSI_PF)
1344 return;
1345
1346 for (j = 0; j < ICE_PF_STATS_LEN; j++) {
1347 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
1348 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
1349 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1350 }
1351
1352 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1353 data[i++] = pf->stats.priority_xon_tx[j];
1354 data[i++] = pf->stats.priority_xoff_tx[j];
1355 }
1356
1357 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1358 data[i++] = pf->stats.priority_xon_rx[j];
1359 data[i++] = pf->stats.priority_xoff_rx[j];
1360 }
1361 }
1362
1363 /**
1364 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
1365 * @netdev: network interface device structure
1366 * @ks: ethtool link ksettings struct to fill out
1367 */
1368 static void
ice_phy_type_to_ethtool(struct net_device * netdev,struct ethtool_link_ksettings * ks)1369 ice_phy_type_to_ethtool(struct net_device *netdev,
1370 struct ethtool_link_ksettings *ks)
1371 {
1372 struct ice_netdev_priv *np = netdev_priv(netdev);
1373 struct ice_link_status *hw_link_info;
1374 bool need_add_adv_mode = false;
1375 struct ice_vsi *vsi = np->vsi;
1376 u64 phy_types_high;
1377 u64 phy_types_low;
1378
1379 hw_link_info = &vsi->port_info->phy.link_info;
1380 phy_types_low = vsi->port_info->phy.phy_type_low;
1381 phy_types_high = vsi->port_info->phy.phy_type_high;
1382
1383 ethtool_link_ksettings_zero_link_mode(ks, supported);
1384 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1385
1386 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
1387 phy_types_low & ICE_PHY_TYPE_LOW_100M_SGMII) {
1388 ethtool_link_ksettings_add_link_mode(ks, supported,
1389 100baseT_Full);
1390 if (!hw_link_info->req_speeds ||
1391 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100MB)
1392 ethtool_link_ksettings_add_link_mode(ks, advertising,
1393 100baseT_Full);
1394 }
1395 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
1396 phy_types_low & ICE_PHY_TYPE_LOW_1G_SGMII) {
1397 ethtool_link_ksettings_add_link_mode(ks, supported,
1398 1000baseT_Full);
1399 if (!hw_link_info->req_speeds ||
1400 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1401 ethtool_link_ksettings_add_link_mode(ks, advertising,
1402 1000baseT_Full);
1403 }
1404 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX) {
1405 ethtool_link_ksettings_add_link_mode(ks, supported,
1406 1000baseKX_Full);
1407 if (!hw_link_info->req_speeds ||
1408 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1409 ethtool_link_ksettings_add_link_mode(ks, advertising,
1410 1000baseKX_Full);
1411 }
1412 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_SX ||
1413 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_LX) {
1414 ethtool_link_ksettings_add_link_mode(ks, supported,
1415 1000baseX_Full);
1416 if (!hw_link_info->req_speeds ||
1417 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1418 ethtool_link_ksettings_add_link_mode(ks, advertising,
1419 1000baseX_Full);
1420 }
1421 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T) {
1422 ethtool_link_ksettings_add_link_mode(ks, supported,
1423 2500baseT_Full);
1424 if (!hw_link_info->req_speeds ||
1425 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
1426 ethtool_link_ksettings_add_link_mode(ks, advertising,
1427 2500baseT_Full);
1428 }
1429 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_X ||
1430 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX) {
1431 ethtool_link_ksettings_add_link_mode(ks, supported,
1432 2500baseX_Full);
1433 if (!hw_link_info->req_speeds ||
1434 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
1435 ethtool_link_ksettings_add_link_mode(ks, advertising,
1436 2500baseX_Full);
1437 }
1438 if (phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
1439 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR) {
1440 ethtool_link_ksettings_add_link_mode(ks, supported,
1441 5000baseT_Full);
1442 if (!hw_link_info->req_speeds ||
1443 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_5GB)
1444 ethtool_link_ksettings_add_link_mode(ks, advertising,
1445 5000baseT_Full);
1446 }
1447 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
1448 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_DA ||
1449 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC ||
1450 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_C2C) {
1451 ethtool_link_ksettings_add_link_mode(ks, supported,
1452 10000baseT_Full);
1453 if (!hw_link_info->req_speeds ||
1454 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1455 ethtool_link_ksettings_add_link_mode(ks, advertising,
1456 10000baseT_Full);
1457 }
1458 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1) {
1459 ethtool_link_ksettings_add_link_mode(ks, supported,
1460 10000baseKR_Full);
1461 if (!hw_link_info->req_speeds ||
1462 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1463 ethtool_link_ksettings_add_link_mode(ks, advertising,
1464 10000baseKR_Full);
1465 }
1466 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_SR) {
1467 ethtool_link_ksettings_add_link_mode(ks, supported,
1468 10000baseSR_Full);
1469 if (!hw_link_info->req_speeds ||
1470 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1471 ethtool_link_ksettings_add_link_mode(ks, advertising,
1472 10000baseSR_Full);
1473 }
1474 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_LR) {
1475 ethtool_link_ksettings_add_link_mode(ks, supported,
1476 10000baseLR_Full);
1477 if (!hw_link_info->req_speeds ||
1478 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1479 ethtool_link_ksettings_add_link_mode(ks, advertising,
1480 10000baseLR_Full);
1481 }
1482 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
1483 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
1484 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
1485 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
1486 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC ||
1487 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_C2C) {
1488 ethtool_link_ksettings_add_link_mode(ks, supported,
1489 25000baseCR_Full);
1490 if (!hw_link_info->req_speeds ||
1491 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1492 ethtool_link_ksettings_add_link_mode(ks, advertising,
1493 25000baseCR_Full);
1494 }
1495 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_SR ||
1496 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_LR) {
1497 ethtool_link_ksettings_add_link_mode(ks, supported,
1498 25000baseSR_Full);
1499 if (!hw_link_info->req_speeds ||
1500 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1501 ethtool_link_ksettings_add_link_mode(ks, advertising,
1502 25000baseSR_Full);
1503 }
1504 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
1505 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
1506 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1) {
1507 ethtool_link_ksettings_add_link_mode(ks, supported,
1508 25000baseKR_Full);
1509 if (!hw_link_info->req_speeds ||
1510 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1511 ethtool_link_ksettings_add_link_mode(ks, advertising,
1512 25000baseKR_Full);
1513 }
1514 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
1515 ethtool_link_ksettings_add_link_mode(ks, supported,
1516 40000baseKR4_Full);
1517 if (!hw_link_info->req_speeds ||
1518 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1519 ethtool_link_ksettings_add_link_mode(ks, advertising,
1520 40000baseKR4_Full);
1521 }
1522 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
1523 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC ||
1524 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI) {
1525 ethtool_link_ksettings_add_link_mode(ks, supported,
1526 40000baseCR4_Full);
1527 if (!hw_link_info->req_speeds ||
1528 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1529 ethtool_link_ksettings_add_link_mode(ks, advertising,
1530 40000baseCR4_Full);
1531 }
1532 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_SR4) {
1533 ethtool_link_ksettings_add_link_mode(ks, supported,
1534 40000baseSR4_Full);
1535 if (!hw_link_info->req_speeds ||
1536 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1537 ethtool_link_ksettings_add_link_mode(ks, advertising,
1538 40000baseSR4_Full);
1539 }
1540 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_LR4) {
1541 ethtool_link_ksettings_add_link_mode(ks, supported,
1542 40000baseLR4_Full);
1543 if (!hw_link_info->req_speeds ||
1544 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1545 ethtool_link_ksettings_add_link_mode(ks, advertising,
1546 40000baseLR4_Full);
1547 }
1548 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 ||
1549 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC ||
1550 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2 ||
1551 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC ||
1552 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2 ||
1553 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP ||
1554 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR ||
1555 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC ||
1556 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1) {
1557 ethtool_link_ksettings_add_link_mode(ks, supported,
1558 50000baseCR2_Full);
1559 if (!hw_link_info->req_speeds ||
1560 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1561 ethtool_link_ksettings_add_link_mode(ks, advertising,
1562 50000baseCR2_Full);
1563 }
1564 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 ||
1565 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) {
1566 ethtool_link_ksettings_add_link_mode(ks, supported,
1567 50000baseKR2_Full);
1568 if (!hw_link_info->req_speeds ||
1569 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1570 ethtool_link_ksettings_add_link_mode(ks, advertising,
1571 50000baseKR2_Full);
1572 }
1573 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR2 ||
1574 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR2 ||
1575 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_FR ||
1576 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR) {
1577 ethtool_link_ksettings_add_link_mode(ks, supported,
1578 50000baseSR2_Full);
1579 if (!hw_link_info->req_speeds ||
1580 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1581 ethtool_link_ksettings_add_link_mode(ks, advertising,
1582 50000baseSR2_Full);
1583 }
1584 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 ||
1585 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC ||
1586 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4 ||
1587 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC ||
1588 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4 ||
1589 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 ||
1590 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2 ||
1591 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC ||
1592 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2 ||
1593 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC ||
1594 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2) {
1595 ethtool_link_ksettings_add_link_mode(ks, supported,
1596 100000baseCR4_Full);
1597 if (!hw_link_info->req_speeds ||
1598 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1599 need_add_adv_mode = true;
1600 }
1601 if (need_add_adv_mode) {
1602 need_add_adv_mode = false;
1603 ethtool_link_ksettings_add_link_mode(ks, advertising,
1604 100000baseCR4_Full);
1605 }
1606 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR4 ||
1607 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR2) {
1608 ethtool_link_ksettings_add_link_mode(ks, supported,
1609 100000baseSR4_Full);
1610 if (!hw_link_info->req_speeds ||
1611 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1612 need_add_adv_mode = true;
1613 }
1614 if (need_add_adv_mode) {
1615 need_add_adv_mode = false;
1616 ethtool_link_ksettings_add_link_mode(ks, advertising,
1617 100000baseSR4_Full);
1618 }
1619 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_LR4 ||
1620 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_DR) {
1621 ethtool_link_ksettings_add_link_mode(ks, supported,
1622 100000baseLR4_ER4_Full);
1623 if (!hw_link_info->req_speeds ||
1624 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1625 need_add_adv_mode = true;
1626 }
1627 if (need_add_adv_mode) {
1628 need_add_adv_mode = false;
1629 ethtool_link_ksettings_add_link_mode(ks, advertising,
1630 100000baseLR4_ER4_Full);
1631 }
1632 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 ||
1633 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 ||
1634 phy_types_high & ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4) {
1635 ethtool_link_ksettings_add_link_mode(ks, supported,
1636 100000baseKR4_Full);
1637 if (!hw_link_info->req_speeds ||
1638 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1639 need_add_adv_mode = true;
1640 }
1641 if (need_add_adv_mode)
1642 ethtool_link_ksettings_add_link_mode(ks, advertising,
1643 100000baseKR4_Full);
1644
1645 /* Autoneg PHY types */
1646 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
1647 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
1648 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX ||
1649 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T ||
1650 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX ||
1651 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
1652 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR ||
1653 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
1654 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 ||
1655 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
1656 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
1657 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
1658 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
1659 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
1660 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
1661 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 ||
1662 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
1663 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
1664 ethtool_link_ksettings_add_link_mode(ks, supported,
1665 Autoneg);
1666 ethtool_link_ksettings_add_link_mode(ks, advertising,
1667 Autoneg);
1668 }
1669 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 ||
1670 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 ||
1671 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP ||
1672 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) {
1673 ethtool_link_ksettings_add_link_mode(ks, supported,
1674 Autoneg);
1675 ethtool_link_ksettings_add_link_mode(ks, advertising,
1676 Autoneg);
1677 }
1678 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 ||
1679 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 ||
1680 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 ||
1681 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2) {
1682 ethtool_link_ksettings_add_link_mode(ks, supported,
1683 Autoneg);
1684 ethtool_link_ksettings_add_link_mode(ks, advertising,
1685 Autoneg);
1686 }
1687 }
1688
1689 #define TEST_SET_BITS_TIMEOUT 50
1690 #define TEST_SET_BITS_SLEEP_MAX 2000
1691 #define TEST_SET_BITS_SLEEP_MIN 1000
1692
1693 /**
1694 * ice_get_settings_link_up - Get Link settings for when link is up
1695 * @ks: ethtool ksettings to fill in
1696 * @netdev: network interface device structure
1697 */
1698 static void
ice_get_settings_link_up(struct ethtool_link_ksettings * ks,struct net_device * netdev)1699 ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
1700 struct net_device *netdev)
1701 {
1702 struct ice_netdev_priv *np = netdev_priv(netdev);
1703 struct ice_port_info *pi = np->vsi->port_info;
1704 struct ethtool_link_ksettings cap_ksettings;
1705 struct ice_link_status *link_info;
1706 struct ice_vsi *vsi = np->vsi;
1707 bool unrecog_phy_high = false;
1708 bool unrecog_phy_low = false;
1709
1710 link_info = &vsi->port_info->phy.link_info;
1711
1712 /* Initialize supported and advertised settings based on PHY settings */
1713 switch (link_info->phy_type_low) {
1714 case ICE_PHY_TYPE_LOW_100BASE_TX:
1715 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1716 ethtool_link_ksettings_add_link_mode(ks, supported,
1717 100baseT_Full);
1718 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1719 ethtool_link_ksettings_add_link_mode(ks, advertising,
1720 100baseT_Full);
1721 break;
1722 case ICE_PHY_TYPE_LOW_100M_SGMII:
1723 ethtool_link_ksettings_add_link_mode(ks, supported,
1724 100baseT_Full);
1725 break;
1726 case ICE_PHY_TYPE_LOW_1000BASE_T:
1727 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1728 ethtool_link_ksettings_add_link_mode(ks, supported,
1729 1000baseT_Full);
1730 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1731 ethtool_link_ksettings_add_link_mode(ks, advertising,
1732 1000baseT_Full);
1733 break;
1734 case ICE_PHY_TYPE_LOW_1G_SGMII:
1735 ethtool_link_ksettings_add_link_mode(ks, supported,
1736 1000baseT_Full);
1737 break;
1738 case ICE_PHY_TYPE_LOW_1000BASE_SX:
1739 case ICE_PHY_TYPE_LOW_1000BASE_LX:
1740 ethtool_link_ksettings_add_link_mode(ks, supported,
1741 1000baseX_Full);
1742 break;
1743 case ICE_PHY_TYPE_LOW_1000BASE_KX:
1744 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1745 ethtool_link_ksettings_add_link_mode(ks, supported,
1746 1000baseKX_Full);
1747 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1748 ethtool_link_ksettings_add_link_mode(ks, advertising,
1749 1000baseKX_Full);
1750 break;
1751 case ICE_PHY_TYPE_LOW_2500BASE_T:
1752 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1753 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1754 ethtool_link_ksettings_add_link_mode(ks, supported,
1755 2500baseT_Full);
1756 ethtool_link_ksettings_add_link_mode(ks, advertising,
1757 2500baseT_Full);
1758 break;
1759 case ICE_PHY_TYPE_LOW_2500BASE_X:
1760 ethtool_link_ksettings_add_link_mode(ks, supported,
1761 2500baseX_Full);
1762 break;
1763 case ICE_PHY_TYPE_LOW_2500BASE_KX:
1764 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1765 ethtool_link_ksettings_add_link_mode(ks, supported,
1766 2500baseX_Full);
1767 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1768 ethtool_link_ksettings_add_link_mode(ks, advertising,
1769 2500baseX_Full);
1770 break;
1771 case ICE_PHY_TYPE_LOW_5GBASE_T:
1772 case ICE_PHY_TYPE_LOW_5GBASE_KR:
1773 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1774 ethtool_link_ksettings_add_link_mode(ks, supported,
1775 5000baseT_Full);
1776 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1777 ethtool_link_ksettings_add_link_mode(ks, advertising,
1778 5000baseT_Full);
1779 break;
1780 case ICE_PHY_TYPE_LOW_10GBASE_T:
1781 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1782 ethtool_link_ksettings_add_link_mode(ks, supported,
1783 10000baseT_Full);
1784 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1785 ethtool_link_ksettings_add_link_mode(ks, advertising,
1786 10000baseT_Full);
1787 break;
1788 case ICE_PHY_TYPE_LOW_10G_SFI_DA:
1789 case ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC:
1790 case ICE_PHY_TYPE_LOW_10G_SFI_C2C:
1791 ethtool_link_ksettings_add_link_mode(ks, supported,
1792 10000baseT_Full);
1793 break;
1794 case ICE_PHY_TYPE_LOW_10GBASE_SR:
1795 ethtool_link_ksettings_add_link_mode(ks, supported,
1796 10000baseSR_Full);
1797 break;
1798 case ICE_PHY_TYPE_LOW_10GBASE_LR:
1799 ethtool_link_ksettings_add_link_mode(ks, supported,
1800 10000baseLR_Full);
1801 break;
1802 case ICE_PHY_TYPE_LOW_10GBASE_KR_CR1:
1803 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1804 ethtool_link_ksettings_add_link_mode(ks, supported,
1805 10000baseKR_Full);
1806 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1807 ethtool_link_ksettings_add_link_mode(ks, advertising,
1808 10000baseKR_Full);
1809 break;
1810 case ICE_PHY_TYPE_LOW_25GBASE_T:
1811 case ICE_PHY_TYPE_LOW_25GBASE_CR:
1812 case ICE_PHY_TYPE_LOW_25GBASE_CR_S:
1813 case ICE_PHY_TYPE_LOW_25GBASE_CR1:
1814 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1815 ethtool_link_ksettings_add_link_mode(ks, supported,
1816 25000baseCR_Full);
1817 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1818 ethtool_link_ksettings_add_link_mode(ks, advertising,
1819 25000baseCR_Full);
1820 break;
1821 case ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC:
1822 case ICE_PHY_TYPE_LOW_25G_AUI_C2C:
1823 ethtool_link_ksettings_add_link_mode(ks, supported,
1824 25000baseCR_Full);
1825 break;
1826 case ICE_PHY_TYPE_LOW_25GBASE_SR:
1827 case ICE_PHY_TYPE_LOW_25GBASE_LR:
1828 ethtool_link_ksettings_add_link_mode(ks, supported,
1829 25000baseSR_Full);
1830 break;
1831 case ICE_PHY_TYPE_LOW_25GBASE_KR:
1832 case ICE_PHY_TYPE_LOW_25GBASE_KR1:
1833 case ICE_PHY_TYPE_LOW_25GBASE_KR_S:
1834 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1835 ethtool_link_ksettings_add_link_mode(ks, supported,
1836 25000baseKR_Full);
1837 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1838 ethtool_link_ksettings_add_link_mode(ks, advertising,
1839 25000baseKR_Full);
1840 break;
1841 case ICE_PHY_TYPE_LOW_40GBASE_CR4:
1842 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1843 ethtool_link_ksettings_add_link_mode(ks, supported,
1844 40000baseCR4_Full);
1845 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1846 ethtool_link_ksettings_add_link_mode(ks, advertising,
1847 40000baseCR4_Full);
1848 break;
1849 case ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC:
1850 case ICE_PHY_TYPE_LOW_40G_XLAUI:
1851 ethtool_link_ksettings_add_link_mode(ks, supported,
1852 40000baseCR4_Full);
1853 break;
1854 case ICE_PHY_TYPE_LOW_40GBASE_SR4:
1855 ethtool_link_ksettings_add_link_mode(ks, supported,
1856 40000baseSR4_Full);
1857 break;
1858 case ICE_PHY_TYPE_LOW_40GBASE_LR4:
1859 ethtool_link_ksettings_add_link_mode(ks, supported,
1860 40000baseLR4_Full);
1861 break;
1862 case ICE_PHY_TYPE_LOW_40GBASE_KR4:
1863 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1864 ethtool_link_ksettings_add_link_mode(ks, supported,
1865 40000baseKR4_Full);
1866 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1867 ethtool_link_ksettings_add_link_mode(ks, advertising,
1868 40000baseKR4_Full);
1869 break;
1870 case ICE_PHY_TYPE_LOW_50GBASE_CR2:
1871 case ICE_PHY_TYPE_LOW_50GBASE_CP:
1872 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1873 ethtool_link_ksettings_add_link_mode(ks, supported,
1874 50000baseCR2_Full);
1875 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1876 ethtool_link_ksettings_add_link_mode(ks, advertising,
1877 50000baseCR2_Full);
1878 break;
1879 case ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC:
1880 case ICE_PHY_TYPE_LOW_50G_LAUI2:
1881 case ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC:
1882 case ICE_PHY_TYPE_LOW_50G_AUI2:
1883 case ICE_PHY_TYPE_LOW_50GBASE_SR:
1884 case ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC:
1885 case ICE_PHY_TYPE_LOW_50G_AUI1:
1886 ethtool_link_ksettings_add_link_mode(ks, supported,
1887 50000baseCR2_Full);
1888 break;
1889 case ICE_PHY_TYPE_LOW_50GBASE_KR2:
1890 case ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4:
1891 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1892 ethtool_link_ksettings_add_link_mode(ks, supported,
1893 50000baseKR2_Full);
1894 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1895 ethtool_link_ksettings_add_link_mode(ks, advertising,
1896 50000baseKR2_Full);
1897 break;
1898 case ICE_PHY_TYPE_LOW_50GBASE_SR2:
1899 case ICE_PHY_TYPE_LOW_50GBASE_LR2:
1900 case ICE_PHY_TYPE_LOW_50GBASE_FR:
1901 case ICE_PHY_TYPE_LOW_50GBASE_LR:
1902 ethtool_link_ksettings_add_link_mode(ks, supported,
1903 50000baseSR2_Full);
1904 break;
1905 case ICE_PHY_TYPE_LOW_100GBASE_CR4:
1906 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1907 ethtool_link_ksettings_add_link_mode(ks, supported,
1908 100000baseCR4_Full);
1909 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1910 ethtool_link_ksettings_add_link_mode(ks, advertising,
1911 100000baseCR4_Full);
1912 break;
1913 case ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC:
1914 case ICE_PHY_TYPE_LOW_100G_CAUI4:
1915 case ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC:
1916 case ICE_PHY_TYPE_LOW_100G_AUI4:
1917 case ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4:
1918 ethtool_link_ksettings_add_link_mode(ks, supported,
1919 100000baseCR4_Full);
1920 break;
1921 case ICE_PHY_TYPE_LOW_100GBASE_CP2:
1922 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1923 ethtool_link_ksettings_add_link_mode(ks, supported,
1924 100000baseCR4_Full);
1925 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1926 ethtool_link_ksettings_add_link_mode(ks, advertising,
1927 100000baseCR4_Full);
1928 break;
1929 case ICE_PHY_TYPE_LOW_100GBASE_SR4:
1930 case ICE_PHY_TYPE_LOW_100GBASE_SR2:
1931 ethtool_link_ksettings_add_link_mode(ks, supported,
1932 100000baseSR4_Full);
1933 break;
1934 case ICE_PHY_TYPE_LOW_100GBASE_LR4:
1935 case ICE_PHY_TYPE_LOW_100GBASE_DR:
1936 ethtool_link_ksettings_add_link_mode(ks, supported,
1937 100000baseLR4_ER4_Full);
1938 break;
1939 case ICE_PHY_TYPE_LOW_100GBASE_KR4:
1940 case ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4:
1941 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1942 ethtool_link_ksettings_add_link_mode(ks, supported,
1943 100000baseKR4_Full);
1944 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1945 ethtool_link_ksettings_add_link_mode(ks, advertising,
1946 100000baseKR4_Full);
1947 break;
1948 default:
1949 unrecog_phy_low = true;
1950 }
1951
1952 switch (link_info->phy_type_high) {
1953 case ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4:
1954 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1955 ethtool_link_ksettings_add_link_mode(ks, supported,
1956 100000baseKR4_Full);
1957 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1958 ethtool_link_ksettings_add_link_mode(ks, advertising,
1959 100000baseKR4_Full);
1960 break;
1961 case ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC:
1962 case ICE_PHY_TYPE_HIGH_100G_CAUI2:
1963 case ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC:
1964 case ICE_PHY_TYPE_HIGH_100G_AUI2:
1965 ethtool_link_ksettings_add_link_mode(ks, supported,
1966 100000baseCR4_Full);
1967 break;
1968 default:
1969 unrecog_phy_high = true;
1970 }
1971
1972 if (unrecog_phy_low && unrecog_phy_high) {
1973 /* if we got here and link is up something bad is afoot */
1974 netdev_info(netdev,
1975 "WARNING: Unrecognized PHY_Low (0x%llx).\n",
1976 (u64)link_info->phy_type_low);
1977 netdev_info(netdev,
1978 "WARNING: Unrecognized PHY_High (0x%llx).\n",
1979 (u64)link_info->phy_type_high);
1980 }
1981
1982 /* Now that we've worked out everything that could be supported by the
1983 * current PHY type, get what is supported by the NVM and intersect
1984 * them to get what is truly supported
1985 */
1986 memset(&cap_ksettings, 0, sizeof(cap_ksettings));
1987 ice_phy_type_to_ethtool(netdev, &cap_ksettings);
1988 ethtool_intersect_link_masks(ks, &cap_ksettings);
1989
1990 switch (link_info->link_speed) {
1991 case ICE_AQ_LINK_SPEED_100GB:
1992 ks->base.speed = SPEED_100000;
1993 break;
1994 case ICE_AQ_LINK_SPEED_50GB:
1995 ks->base.speed = SPEED_50000;
1996 break;
1997 case ICE_AQ_LINK_SPEED_40GB:
1998 ks->base.speed = SPEED_40000;
1999 break;
2000 case ICE_AQ_LINK_SPEED_25GB:
2001 ks->base.speed = SPEED_25000;
2002 break;
2003 case ICE_AQ_LINK_SPEED_20GB:
2004 ks->base.speed = SPEED_20000;
2005 break;
2006 case ICE_AQ_LINK_SPEED_10GB:
2007 ks->base.speed = SPEED_10000;
2008 break;
2009 case ICE_AQ_LINK_SPEED_5GB:
2010 ks->base.speed = SPEED_5000;
2011 break;
2012 case ICE_AQ_LINK_SPEED_2500MB:
2013 ks->base.speed = SPEED_2500;
2014 break;
2015 case ICE_AQ_LINK_SPEED_1000MB:
2016 ks->base.speed = SPEED_1000;
2017 break;
2018 case ICE_AQ_LINK_SPEED_100MB:
2019 ks->base.speed = SPEED_100;
2020 break;
2021 default:
2022 netdev_info(netdev,
2023 "WARNING: Unrecognized link_speed (0x%x).\n",
2024 link_info->link_speed);
2025 break;
2026 }
2027 ks->base.duplex = DUPLEX_FULL;
2028
2029 if (link_info->an_info & ICE_AQ_AN_COMPLETED)
2030 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
2031 Autoneg);
2032
2033 /* Set flow control negotiated Rx/Tx pause */
2034 switch (pi->fc.current_mode) {
2035 case ICE_FC_FULL:
2036 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
2037 break;
2038 case ICE_FC_TX_PAUSE:
2039 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
2040 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
2041 Asym_Pause);
2042 break;
2043 case ICE_FC_RX_PAUSE:
2044 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
2045 Asym_Pause);
2046 break;
2047 case ICE_FC_PFC:
2048 /* fall through */
2049 default:
2050 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause);
2051 ethtool_link_ksettings_del_link_mode(ks, lp_advertising,
2052 Asym_Pause);
2053 break;
2054 }
2055 }
2056
2057 /**
2058 * ice_get_settings_link_down - Get the Link settings when link is down
2059 * @ks: ethtool ksettings to fill in
2060 * @netdev: network interface device structure
2061 *
2062 * Reports link settings that can be determined when link is down
2063 */
2064 static void
ice_get_settings_link_down(struct ethtool_link_ksettings * ks,struct net_device * netdev)2065 ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
2066 struct net_device *netdev)
2067 {
2068 /* link is down and the driver needs to fall back on
2069 * supported PHY types to figure out what info to display
2070 */
2071 ice_phy_type_to_ethtool(netdev, ks);
2072
2073 /* With no link, speed and duplex are unknown */
2074 ks->base.speed = SPEED_UNKNOWN;
2075 ks->base.duplex = DUPLEX_UNKNOWN;
2076 }
2077
2078 /**
2079 * ice_get_link_ksettings - Get Link Speed and Duplex settings
2080 * @netdev: network interface device structure
2081 * @ks: ethtool ksettings
2082 *
2083 * Reports speed/duplex settings based on media_type
2084 */
2085 static int
ice_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * ks)2086 ice_get_link_ksettings(struct net_device *netdev,
2087 struct ethtool_link_ksettings *ks)
2088 {
2089 struct ice_netdev_priv *np = netdev_priv(netdev);
2090 struct ice_aqc_get_phy_caps_data *caps;
2091 struct ice_link_status *hw_link_info;
2092 struct ice_vsi *vsi = np->vsi;
2093 enum ice_status status;
2094 int err = 0;
2095
2096 ethtool_link_ksettings_zero_link_mode(ks, supported);
2097 ethtool_link_ksettings_zero_link_mode(ks, advertising);
2098 ethtool_link_ksettings_zero_link_mode(ks, lp_advertising);
2099 hw_link_info = &vsi->port_info->phy.link_info;
2100
2101 /* set speed and duplex */
2102 if (hw_link_info->link_info & ICE_AQ_LINK_UP)
2103 ice_get_settings_link_up(ks, netdev);
2104 else
2105 ice_get_settings_link_down(ks, netdev);
2106
2107 /* set autoneg settings */
2108 ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
2109 AUTONEG_ENABLE : AUTONEG_DISABLE;
2110
2111 /* set media type settings */
2112 switch (vsi->port_info->phy.media_type) {
2113 case ICE_MEDIA_FIBER:
2114 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
2115 ks->base.port = PORT_FIBRE;
2116 break;
2117 case ICE_MEDIA_BASET:
2118 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
2119 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
2120 ks->base.port = PORT_TP;
2121 break;
2122 case ICE_MEDIA_BACKPLANE:
2123 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
2124 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
2125 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
2126 ethtool_link_ksettings_add_link_mode(ks, advertising,
2127 Backplane);
2128 ks->base.port = PORT_NONE;
2129 break;
2130 case ICE_MEDIA_DA:
2131 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
2132 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
2133 ks->base.port = PORT_DA;
2134 break;
2135 default:
2136 ks->base.port = PORT_OTHER;
2137 break;
2138 }
2139
2140 /* flow control is symmetric and always supported */
2141 ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
2142
2143 caps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*caps), GFP_KERNEL);
2144 if (!caps)
2145 return -ENOMEM;
2146
2147 status = ice_aq_get_phy_caps(vsi->port_info, false,
2148 ICE_AQC_REPORT_SW_CFG, caps, NULL);
2149 if (status) {
2150 err = -EIO;
2151 goto done;
2152 }
2153
2154 /* Set the advertised flow control based on the PHY capability */
2155 if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) &&
2156 (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) {
2157 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
2158 ethtool_link_ksettings_add_link_mode(ks, advertising,
2159 Asym_Pause);
2160 } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) {
2161 ethtool_link_ksettings_add_link_mode(ks, advertising,
2162 Asym_Pause);
2163 } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) {
2164 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
2165 ethtool_link_ksettings_add_link_mode(ks, advertising,
2166 Asym_Pause);
2167 } else {
2168 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
2169 ethtool_link_ksettings_del_link_mode(ks, advertising,
2170 Asym_Pause);
2171 }
2172
2173 /* Set advertised FEC modes based on PHY capability */
2174 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE);
2175
2176 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
2177 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
2178 ethtool_link_ksettings_add_link_mode(ks, advertising,
2179 FEC_BASER);
2180 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
2181 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
2182 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
2183
2184 status = ice_aq_get_phy_caps(vsi->port_info, false,
2185 ICE_AQC_REPORT_TOPO_CAP, caps, NULL);
2186 if (status) {
2187 err = -EIO;
2188 goto done;
2189 }
2190
2191 /* Set supported FEC modes based on PHY capability */
2192 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
2193
2194 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
2195 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN)
2196 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
2197 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
2198 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
2199
2200 done:
2201 devm_kfree(&vsi->back->pdev->dev, caps);
2202 return err;
2203 }
2204
2205 /**
2206 * ice_ksettings_find_adv_link_speed - Find advertising link speed
2207 * @ks: ethtool ksettings
2208 */
2209 static u16
ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings * ks)2210 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
2211 {
2212 u16 adv_link_speed = 0;
2213
2214 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2215 100baseT_Full))
2216 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
2217 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2218 1000baseX_Full))
2219 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2220 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2221 1000baseT_Full) ||
2222 ethtool_link_ksettings_test_link_mode(ks, advertising,
2223 1000baseKX_Full))
2224 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2225 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2226 2500baseT_Full))
2227 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2228 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2229 2500baseX_Full))
2230 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2231 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2232 5000baseT_Full))
2233 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
2234 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2235 10000baseT_Full) ||
2236 ethtool_link_ksettings_test_link_mode(ks, advertising,
2237 10000baseKR_Full))
2238 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2239 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2240 10000baseSR_Full) ||
2241 ethtool_link_ksettings_test_link_mode(ks, advertising,
2242 10000baseLR_Full))
2243 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2244 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2245 25000baseCR_Full) ||
2246 ethtool_link_ksettings_test_link_mode(ks, advertising,
2247 25000baseSR_Full) ||
2248 ethtool_link_ksettings_test_link_mode(ks, advertising,
2249 25000baseKR_Full))
2250 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
2251 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2252 40000baseCR4_Full) ||
2253 ethtool_link_ksettings_test_link_mode(ks, advertising,
2254 40000baseSR4_Full) ||
2255 ethtool_link_ksettings_test_link_mode(ks, advertising,
2256 40000baseLR4_Full) ||
2257 ethtool_link_ksettings_test_link_mode(ks, advertising,
2258 40000baseKR4_Full))
2259 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
2260 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2261 50000baseCR2_Full) ||
2262 ethtool_link_ksettings_test_link_mode(ks, advertising,
2263 50000baseKR2_Full))
2264 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2265 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2266 50000baseSR2_Full))
2267 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2268 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2269 100000baseCR4_Full) ||
2270 ethtool_link_ksettings_test_link_mode(ks, advertising,
2271 100000baseSR4_Full) ||
2272 ethtool_link_ksettings_test_link_mode(ks, advertising,
2273 100000baseLR4_ER4_Full) ||
2274 ethtool_link_ksettings_test_link_mode(ks, advertising,
2275 100000baseKR4_Full))
2276 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;
2277
2278 return adv_link_speed;
2279 }
2280
2281 /**
2282 * ice_setup_autoneg
2283 * @p: port info
2284 * @ks: ethtool_link_ksettings
2285 * @config: configuration that will be sent down to FW
2286 * @autoneg_enabled: autonegotiation is enabled or not
2287 * @autoneg_changed: will there a change in autonegotiation
2288 * @netdev: network interface device structure
2289 *
2290 * Setup PHY autonegotiation feature
2291 */
2292 static int
ice_setup_autoneg(struct ice_port_info * p,struct ethtool_link_ksettings * ks,struct ice_aqc_set_phy_cfg_data * config,u8 autoneg_enabled,u8 * autoneg_changed,struct net_device * netdev)2293 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
2294 struct ice_aqc_set_phy_cfg_data *config,
2295 u8 autoneg_enabled, u8 *autoneg_changed,
2296 struct net_device *netdev)
2297 {
2298 int err = 0;
2299
2300 *autoneg_changed = 0;
2301
2302 /* Check autoneg */
2303 if (autoneg_enabled == AUTONEG_ENABLE) {
2304 /* If autoneg was not already enabled */
2305 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
2306 /* If autoneg is not supported, return error */
2307 if (!ethtool_link_ksettings_test_link_mode(ks,
2308 supported,
2309 Autoneg)) {
2310 netdev_info(netdev, "Autoneg not supported on this phy.\n");
2311 err = -EINVAL;
2312 } else {
2313 /* Autoneg is allowed to change */
2314 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2315 *autoneg_changed = 1;
2316 }
2317 }
2318 } else {
2319 /* If autoneg is currently enabled */
2320 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
2321 /* If autoneg is supported 10GBASE_T is the only PHY
2322 * that can disable it, so otherwise return error
2323 */
2324 if (ethtool_link_ksettings_test_link_mode(ks,
2325 supported,
2326 Autoneg)) {
2327 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
2328 err = -EINVAL;
2329 } else {
2330 /* Autoneg is allowed to change */
2331 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2332 *autoneg_changed = 1;
2333 }
2334 }
2335 }
2336
2337 return err;
2338 }
2339
2340 /**
2341 * ice_set_link_ksettings - Set Speed and Duplex
2342 * @netdev: network interface device structure
2343 * @ks: ethtool ksettings
2344 *
2345 * Set speed/duplex per media_types advertised/forced
2346 */
2347 static int
ice_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * ks)2348 ice_set_link_ksettings(struct net_device *netdev,
2349 const struct ethtool_link_ksettings *ks)
2350 {
2351 u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT, lport = 0;
2352 struct ice_netdev_priv *np = netdev_priv(netdev);
2353 struct ethtool_link_ksettings safe_ks, copy_ks;
2354 struct ice_aqc_get_phy_caps_data *abilities;
2355 u16 adv_link_speed, curr_link_speed, idx;
2356 struct ice_aqc_set_phy_cfg_data config;
2357 struct ice_pf *pf = np->vsi->back;
2358 struct ice_port_info *p;
2359 u8 autoneg_changed = 0;
2360 enum ice_status status;
2361 u64 phy_type_high;
2362 u64 phy_type_low;
2363 int err = 0;
2364 bool linkup;
2365
2366 p = np->vsi->port_info;
2367
2368 if (!p)
2369 return -EOPNOTSUPP;
2370
2371 /* Check if this is LAN VSI */
2372 ice_for_each_vsi(pf, idx)
2373 if (pf->vsi[idx]->type == ICE_VSI_PF) {
2374 if (np->vsi != pf->vsi[idx])
2375 return -EOPNOTSUPP;
2376 break;
2377 }
2378
2379 if (p->phy.media_type != ICE_MEDIA_BASET &&
2380 p->phy.media_type != ICE_MEDIA_FIBER &&
2381 p->phy.media_type != ICE_MEDIA_BACKPLANE &&
2382 p->phy.media_type != ICE_MEDIA_DA &&
2383 p->phy.link_info.link_info & ICE_AQ_LINK_UP)
2384 return -EOPNOTSUPP;
2385
2386 /* copy the ksettings to copy_ks to avoid modifying the original */
2387 memcpy(©_ks, ks, sizeof(copy_ks));
2388
2389 /* save autoneg out of ksettings */
2390 autoneg = copy_ks.base.autoneg;
2391
2392 memset(&safe_ks, 0, sizeof(safe_ks));
2393
2394 /* Get link modes supported by hardware.*/
2395 ice_phy_type_to_ethtool(netdev, &safe_ks);
2396
2397 /* and check against modes requested by user.
2398 * Return an error if unsupported mode was set.
2399 */
2400 if (!bitmap_subset(copy_ks.link_modes.advertising,
2401 safe_ks.link_modes.supported,
2402 __ETHTOOL_LINK_MODE_MASK_NBITS))
2403 return -EINVAL;
2404
2405 /* get our own copy of the bits to check against */
2406 memset(&safe_ks, 0, sizeof(safe_ks));
2407 safe_ks.base.cmd = copy_ks.base.cmd;
2408 safe_ks.base.link_mode_masks_nwords =
2409 copy_ks.base.link_mode_masks_nwords;
2410 ice_get_link_ksettings(netdev, &safe_ks);
2411
2412 /* set autoneg back to what it currently is */
2413 copy_ks.base.autoneg = safe_ks.base.autoneg;
2414 /* we don't compare the speed */
2415 copy_ks.base.speed = safe_ks.base.speed;
2416
2417 /* If copy_ks.base and safe_ks.base are not the same now, then they are
2418 * trying to set something that we do not support.
2419 */
2420 if (memcmp(©_ks.base, &safe_ks.base, sizeof(copy_ks.base)))
2421 return -EOPNOTSUPP;
2422
2423 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2424 timeout--;
2425 if (!timeout)
2426 return -EBUSY;
2427 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
2428 }
2429
2430 abilities = devm_kzalloc(&pf->pdev->dev, sizeof(*abilities),
2431 GFP_KERNEL);
2432 if (!abilities)
2433 return -ENOMEM;
2434
2435 /* Get the current PHY config */
2436 status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_SW_CFG, abilities,
2437 NULL);
2438 if (status) {
2439 err = -EAGAIN;
2440 goto done;
2441 }
2442
2443 /* Copy abilities to config in case autoneg is not set below */
2444 memset(&config, 0, sizeof(config));
2445 config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE;
2446 if (abilities->caps & ICE_AQC_PHY_AN_MODE)
2447 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2448
2449 /* Check autoneg */
2450 err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed,
2451 netdev);
2452
2453 if (err)
2454 goto done;
2455
2456 /* Call to get the current link speed */
2457 p->phy.get_link_info = true;
2458 status = ice_get_link_status(p, &linkup);
2459 if (status) {
2460 err = -EAGAIN;
2461 goto done;
2462 }
2463
2464 curr_link_speed = p->phy.link_info.link_speed;
2465 adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
2466
2467 /* If speed didn't get set, set it to what it currently is.
2468 * This is needed because if advertise is 0 (as it is when autoneg
2469 * is disabled) then speed won't get set.
2470 */
2471 if (!adv_link_speed)
2472 adv_link_speed = curr_link_speed;
2473
2474 /* Convert the advertise link speeds to their corresponded PHY_TYPE */
2475 ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed);
2476
2477 if (!autoneg_changed && adv_link_speed == curr_link_speed) {
2478 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
2479 goto done;
2480 }
2481
2482 /* copy over the rest of the abilities */
2483 config.low_power_ctrl = abilities->low_power_ctrl;
2484 config.eee_cap = abilities->eee_cap;
2485 config.eeer_value = abilities->eeer_value;
2486 config.link_fec_opt = abilities->link_fec_options;
2487
2488 /* save the requested speeds */
2489 p->phy.link_info.req_speeds = adv_link_speed;
2490
2491 /* set link and auto negotiation so changes take effect */
2492 config.caps |= ICE_AQ_PHY_ENA_LINK;
2493
2494 if (phy_type_low || phy_type_high) {
2495 config.phy_type_high = cpu_to_le64(phy_type_high) &
2496 abilities->phy_type_high;
2497 config.phy_type_low = cpu_to_le64(phy_type_low) &
2498 abilities->phy_type_low;
2499 } else {
2500 err = -EAGAIN;
2501 netdev_info(netdev, "Nothing changed. No PHY_TYPE is corresponded to advertised link speed.\n");
2502 goto done;
2503 }
2504
2505 /* If link is up put link down */
2506 if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) {
2507 /* Tell the OS link is going down, the link will go
2508 * back up when fw says it is ready asynchronously
2509 */
2510 ice_print_link_msg(np->vsi, false);
2511 netif_carrier_off(netdev);
2512 netif_tx_stop_all_queues(netdev);
2513 }
2514
2515 /* make the aq call */
2516 status = ice_aq_set_phy_cfg(&pf->hw, lport, &config, NULL);
2517 if (status) {
2518 netdev_info(netdev, "Set phy config failed,\n");
2519 err = -EAGAIN;
2520 }
2521
2522 done:
2523 devm_kfree(&pf->pdev->dev, abilities);
2524 clear_bit(__ICE_CFG_BUSY, pf->state);
2525
2526 return err;
2527 }
2528
2529 /**
2530 * ice_get_rxnfc - command to get Rx flow classification rules
2531 * @netdev: network interface device structure
2532 * @cmd: ethtool rxnfc command
2533 * @rule_locs: buffer to rturn Rx flow classification rules
2534 *
2535 * Returns Success if the command is supported.
2536 */
2537 static int
ice_get_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * cmd,u32 __always_unused * rule_locs)2538 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2539 u32 __always_unused *rule_locs)
2540 {
2541 struct ice_netdev_priv *np = netdev_priv(netdev);
2542 struct ice_vsi *vsi = np->vsi;
2543 int ret = -EOPNOTSUPP;
2544
2545 switch (cmd->cmd) {
2546 case ETHTOOL_GRXRINGS:
2547 cmd->data = vsi->rss_size;
2548 ret = 0;
2549 break;
2550 default:
2551 break;
2552 }
2553
2554 return ret;
2555 }
2556
2557 static void
ice_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring)2558 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2559 {
2560 struct ice_netdev_priv *np = netdev_priv(netdev);
2561 struct ice_vsi *vsi = np->vsi;
2562
2563 ring->rx_max_pending = ICE_MAX_NUM_DESC;
2564 ring->tx_max_pending = ICE_MAX_NUM_DESC;
2565 ring->rx_pending = vsi->rx_rings[0]->count;
2566 ring->tx_pending = vsi->tx_rings[0]->count;
2567
2568 /* Rx mini and jumbo rings are not supported */
2569 ring->rx_mini_max_pending = 0;
2570 ring->rx_jumbo_max_pending = 0;
2571 ring->rx_mini_pending = 0;
2572 ring->rx_jumbo_pending = 0;
2573 }
2574
2575 static int
ice_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring)2576 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2577 {
2578 struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
2579 struct ice_netdev_priv *np = netdev_priv(netdev);
2580 struct ice_vsi *vsi = np->vsi;
2581 struct ice_pf *pf = vsi->back;
2582 int i, timeout = 50, err = 0;
2583 u32 new_rx_cnt, new_tx_cnt;
2584
2585 if (ring->tx_pending > ICE_MAX_NUM_DESC ||
2586 ring->tx_pending < ICE_MIN_NUM_DESC ||
2587 ring->rx_pending > ICE_MAX_NUM_DESC ||
2588 ring->rx_pending < ICE_MIN_NUM_DESC) {
2589 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
2590 ring->tx_pending, ring->rx_pending,
2591 ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
2592 ICE_REQ_DESC_MULTIPLE);
2593 return -EINVAL;
2594 }
2595
2596 new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
2597 if (new_tx_cnt != ring->tx_pending)
2598 netdev_info(netdev,
2599 "Requested Tx descriptor count rounded up to %d\n",
2600 new_tx_cnt);
2601 new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
2602 if (new_rx_cnt != ring->rx_pending)
2603 netdev_info(netdev,
2604 "Requested Rx descriptor count rounded up to %d\n",
2605 new_rx_cnt);
2606
2607 /* if nothing to do return success */
2608 if (new_tx_cnt == vsi->tx_rings[0]->count &&
2609 new_rx_cnt == vsi->rx_rings[0]->count) {
2610 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
2611 return 0;
2612 }
2613
2614 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2615 timeout--;
2616 if (!timeout)
2617 return -EBUSY;
2618 usleep_range(1000, 2000);
2619 }
2620
2621 /* set for the next time the netdev is started */
2622 if (!netif_running(vsi->netdev)) {
2623 for (i = 0; i < vsi->alloc_txq; i++)
2624 vsi->tx_rings[i]->count = new_tx_cnt;
2625 for (i = 0; i < vsi->alloc_rxq; i++)
2626 vsi->rx_rings[i]->count = new_rx_cnt;
2627 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
2628 goto done;
2629 }
2630
2631 if (new_tx_cnt == vsi->tx_rings[0]->count)
2632 goto process_rx;
2633
2634 /* alloc updated Tx resources */
2635 netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
2636 vsi->tx_rings[0]->count, new_tx_cnt);
2637
2638 tx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_txq,
2639 sizeof(*tx_rings), GFP_KERNEL);
2640 if (!tx_rings) {
2641 err = -ENOMEM;
2642 goto done;
2643 }
2644
2645 for (i = 0; i < vsi->alloc_txq; i++) {
2646 /* clone ring and setup updated count */
2647 tx_rings[i] = *vsi->tx_rings[i];
2648 tx_rings[i].count = new_tx_cnt;
2649 tx_rings[i].desc = NULL;
2650 tx_rings[i].tx_buf = NULL;
2651 err = ice_setup_tx_ring(&tx_rings[i]);
2652 if (err) {
2653 while (i) {
2654 i--;
2655 ice_clean_tx_ring(&tx_rings[i]);
2656 }
2657 devm_kfree(&pf->pdev->dev, tx_rings);
2658 goto done;
2659 }
2660 }
2661
2662 process_rx:
2663 if (new_rx_cnt == vsi->rx_rings[0]->count)
2664 goto process_link;
2665
2666 /* alloc updated Rx resources */
2667 netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
2668 vsi->rx_rings[0]->count, new_rx_cnt);
2669
2670 rx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_rxq,
2671 sizeof(*rx_rings), GFP_KERNEL);
2672 if (!rx_rings) {
2673 err = -ENOMEM;
2674 goto done;
2675 }
2676
2677 for (i = 0; i < vsi->alloc_rxq; i++) {
2678 /* clone ring and setup updated count */
2679 rx_rings[i] = *vsi->rx_rings[i];
2680 rx_rings[i].count = new_rx_cnt;
2681 rx_rings[i].desc = NULL;
2682 rx_rings[i].rx_buf = NULL;
2683 /* this is to allow wr32 to have something to write to
2684 * during early allocation of Rx buffers
2685 */
2686 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;
2687
2688 err = ice_setup_rx_ring(&rx_rings[i]);
2689 if (err)
2690 goto rx_unwind;
2691
2692 /* allocate Rx buffers */
2693 err = ice_alloc_rx_bufs(&rx_rings[i],
2694 ICE_DESC_UNUSED(&rx_rings[i]));
2695 rx_unwind:
2696 if (err) {
2697 while (i) {
2698 i--;
2699 ice_free_rx_ring(&rx_rings[i]);
2700 }
2701 devm_kfree(&pf->pdev->dev, rx_rings);
2702 err = -ENOMEM;
2703 goto free_tx;
2704 }
2705 }
2706
2707 process_link:
2708 /* Bring interface down, copy in the new ring info, then restore the
2709 * interface. if VSI is up, bring it down and then back up
2710 */
2711 if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
2712 ice_down(vsi);
2713
2714 if (tx_rings) {
2715 for (i = 0; i < vsi->alloc_txq; i++) {
2716 ice_free_tx_ring(vsi->tx_rings[i]);
2717 *vsi->tx_rings[i] = tx_rings[i];
2718 }
2719 devm_kfree(&pf->pdev->dev, tx_rings);
2720 }
2721
2722 if (rx_rings) {
2723 for (i = 0; i < vsi->alloc_rxq; i++) {
2724 ice_free_rx_ring(vsi->rx_rings[i]);
2725 /* copy the real tail offset */
2726 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2727 /* this is to fake out the allocation routine
2728 * into thinking it has to realloc everything
2729 * but the recycling logic will let us re-use
2730 * the buffers allocated above
2731 */
2732 rx_rings[i].next_to_use = 0;
2733 rx_rings[i].next_to_clean = 0;
2734 rx_rings[i].next_to_alloc = 0;
2735 *vsi->rx_rings[i] = rx_rings[i];
2736 }
2737 devm_kfree(&pf->pdev->dev, rx_rings);
2738 }
2739
2740 ice_up(vsi);
2741 }
2742 goto done;
2743
2744 free_tx:
2745 /* error cleanup if the Rx allocations failed after getting Tx */
2746 if (tx_rings) {
2747 for (i = 0; i < vsi->alloc_txq; i++)
2748 ice_free_tx_ring(&tx_rings[i]);
2749 devm_kfree(&pf->pdev->dev, tx_rings);
2750 }
2751
2752 done:
2753 clear_bit(__ICE_CFG_BUSY, pf->state);
2754 return err;
2755 }
2756
ice_nway_reset(struct net_device * netdev)2757 static int ice_nway_reset(struct net_device *netdev)
2758 {
2759 /* restart autonegotiation */
2760 struct ice_netdev_priv *np = netdev_priv(netdev);
2761 struct ice_vsi *vsi = np->vsi;
2762 struct ice_port_info *pi;
2763 enum ice_status status;
2764
2765 pi = vsi->port_info;
2766 /* If VSI state is up, then restart autoneg with link up */
2767 if (!test_bit(__ICE_DOWN, vsi->back->state))
2768 status = ice_aq_set_link_restart_an(pi, true, NULL);
2769 else
2770 status = ice_aq_set_link_restart_an(pi, false, NULL);
2771
2772 if (status) {
2773 netdev_info(netdev, "link restart failed, err %d aq_err %d\n",
2774 status, pi->hw->adminq.sq_last_status);
2775 return -EIO;
2776 }
2777
2778 return 0;
2779 }
2780
2781 /**
2782 * ice_get_pauseparam - Get Flow Control status
2783 * @netdev: network interface device structure
2784 * @pause: ethernet pause (flow control) parameters
2785 *
2786 * Get requested flow control status from PHY capability.
2787 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which
2788 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report
2789 * the negotiated Rx/Tx pause via lp_advertising.
2790 */
2791 static void
ice_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)2792 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2793 {
2794 struct ice_netdev_priv *np = netdev_priv(netdev);
2795 struct ice_port_info *pi = np->vsi->port_info;
2796 struct ice_aqc_get_phy_caps_data *pcaps;
2797 struct ice_vsi *vsi = np->vsi;
2798 struct ice_dcbx_cfg *dcbx_cfg;
2799 enum ice_status status;
2800
2801 /* Initialize pause params */
2802 pause->rx_pause = 0;
2803 pause->tx_pause = 0;
2804
2805 dcbx_cfg = &pi->local_dcbx_cfg;
2806
2807 pcaps = devm_kzalloc(&vsi->back->pdev->dev, sizeof(*pcaps),
2808 GFP_KERNEL);
2809 if (!pcaps)
2810 return;
2811
2812 /* Get current PHY config */
2813 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
2814 NULL);
2815 if (status)
2816 goto out;
2817
2818 pause->autoneg = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
2819 AUTONEG_ENABLE : AUTONEG_DISABLE);
2820
2821 if (dcbx_cfg->pfc.pfcena)
2822 /* PFC enabled so report LFC as off */
2823 goto out;
2824
2825 if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE)
2826 pause->tx_pause = 1;
2827 if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
2828 pause->rx_pause = 1;
2829
2830 out:
2831 devm_kfree(&vsi->back->pdev->dev, pcaps);
2832 }
2833
2834 /**
2835 * ice_set_pauseparam - Set Flow Control parameter
2836 * @netdev: network interface device structure
2837 * @pause: return Tx/Rx flow control status
2838 */
2839 static int
ice_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)2840 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2841 {
2842 struct ice_netdev_priv *np = netdev_priv(netdev);
2843 struct ice_aqc_get_phy_caps_data *pcaps;
2844 struct ice_link_status *hw_link_info;
2845 struct ice_pf *pf = np->vsi->back;
2846 struct ice_dcbx_cfg *dcbx_cfg;
2847 struct ice_vsi *vsi = np->vsi;
2848 struct ice_hw *hw = &pf->hw;
2849 struct ice_port_info *pi;
2850 enum ice_status status;
2851 u8 aq_failures;
2852 bool link_up;
2853 int err = 0;
2854 u32 is_an;
2855
2856 pi = vsi->port_info;
2857 hw_link_info = &pi->phy.link_info;
2858 dcbx_cfg = &pi->local_dcbx_cfg;
2859 link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
2860
2861 /* Changing the port's flow control is not supported if this isn't the
2862 * PF VSI
2863 */
2864 if (vsi->type != ICE_VSI_PF) {
2865 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
2866 return -EOPNOTSUPP;
2867 }
2868
2869 /* Get pause param reports configured and negotiated flow control pause
2870 * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is
2871 * defined get pause param pause->autoneg reports SW configured setting,
2872 * so compare pause->autoneg with SW configured to prevent the user from
2873 * using set pause param to chance autoneg.
2874 */
2875 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2876 if (!pcaps)
2877 return -ENOMEM;
2878
2879 /* Get current PHY config */
2880 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
2881 NULL);
2882 if (status) {
2883 kfree(pcaps);
2884 return -EIO;
2885 }
2886
2887 is_an = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
2888 AUTONEG_ENABLE : AUTONEG_DISABLE);
2889
2890 kfree(pcaps);
2891
2892 if (pause->autoneg != is_an) {
2893 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
2894 return -EOPNOTSUPP;
2895 }
2896
2897 /* If we have link and don't have autoneg */
2898 if (!test_bit(__ICE_DOWN, pf->state) &&
2899 !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
2900 /* Send message that it might not necessarily work*/
2901 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
2902 }
2903
2904 if (dcbx_cfg->pfc.pfcena) {
2905 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
2906 return -EOPNOTSUPP;
2907 }
2908 if (pause->rx_pause && pause->tx_pause)
2909 pi->fc.req_mode = ICE_FC_FULL;
2910 else if (pause->rx_pause && !pause->tx_pause)
2911 pi->fc.req_mode = ICE_FC_RX_PAUSE;
2912 else if (!pause->rx_pause && pause->tx_pause)
2913 pi->fc.req_mode = ICE_FC_TX_PAUSE;
2914 else if (!pause->rx_pause && !pause->tx_pause)
2915 pi->fc.req_mode = ICE_FC_NONE;
2916 else
2917 return -EINVAL;
2918
2919 /* Tell the OS link is going down, the link will go back up when fw
2920 * says it is ready asynchronously
2921 */
2922 ice_print_link_msg(vsi, false);
2923 netif_carrier_off(netdev);
2924 netif_tx_stop_all_queues(netdev);
2925
2926 /* Set the FC mode and only restart AN if link is up */
2927 status = ice_set_fc(pi, &aq_failures, link_up);
2928
2929 if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
2930 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %d\n",
2931 status, hw->adminq.sq_last_status);
2932 err = -EAGAIN;
2933 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
2934 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %d\n",
2935 status, hw->adminq.sq_last_status);
2936 err = -EAGAIN;
2937 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
2938 netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %d\n",
2939 status, hw->adminq.sq_last_status);
2940 err = -EAGAIN;
2941 }
2942
2943 if (!test_bit(__ICE_DOWN, pf->state)) {
2944 /* Give it a little more time to try to come back. If still
2945 * down, restart autoneg link or reinitialize the interface.
2946 */
2947 msleep(75);
2948 if (!test_bit(__ICE_DOWN, pf->state))
2949 return ice_nway_reset(netdev);
2950
2951 ice_down(vsi);
2952 ice_up(vsi);
2953 }
2954
2955 return err;
2956 }
2957
2958 /**
2959 * ice_get_rxfh_key_size - get the RSS hash key size
2960 * @netdev: network interface device structure
2961 *
2962 * Returns the table size.
2963 */
ice_get_rxfh_key_size(struct net_device __always_unused * netdev)2964 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
2965 {
2966 return ICE_VSIQF_HKEY_ARRAY_SIZE;
2967 }
2968
2969 /**
2970 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size
2971 * @netdev: network interface device structure
2972 *
2973 * Returns the table size.
2974 */
ice_get_rxfh_indir_size(struct net_device * netdev)2975 static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
2976 {
2977 struct ice_netdev_priv *np = netdev_priv(netdev);
2978
2979 return np->vsi->rss_table_size;
2980 }
2981
2982 /**
2983 * ice_get_rxfh - get the Rx flow hash indirection table
2984 * @netdev: network interface device structure
2985 * @indir: indirection table
2986 * @key: hash key
2987 * @hfunc: hash function
2988 *
2989 * Reads the indirection table directly from the hardware.
2990 */
2991 static int
ice_get_rxfh(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc)2992 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
2993 {
2994 struct ice_netdev_priv *np = netdev_priv(netdev);
2995 struct ice_vsi *vsi = np->vsi;
2996 struct ice_pf *pf = vsi->back;
2997 int ret = 0, i;
2998 u8 *lut;
2999
3000 if (hfunc)
3001 *hfunc = ETH_RSS_HASH_TOP;
3002
3003 if (!indir)
3004 return 0;
3005
3006 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3007 /* RSS not supported return error here */
3008 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3009 return -EIO;
3010 }
3011
3012 lut = devm_kzalloc(&pf->pdev->dev, vsi->rss_table_size, GFP_KERNEL);
3013 if (!lut)
3014 return -ENOMEM;
3015
3016 if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) {
3017 ret = -EIO;
3018 goto out;
3019 }
3020
3021 for (i = 0; i < vsi->rss_table_size; i++)
3022 indir[i] = (u32)(lut[i]);
3023
3024 out:
3025 devm_kfree(&pf->pdev->dev, lut);
3026 return ret;
3027 }
3028
3029 /**
3030 * ice_set_rxfh - set the Rx flow hash indirection table
3031 * @netdev: network interface device structure
3032 * @indir: indirection table
3033 * @key: hash key
3034 * @hfunc: hash function
3035 *
3036 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise
3037 * returns 0 after programming the table.
3038 */
3039 static int
ice_set_rxfh(struct net_device * netdev,const u32 * indir,const u8 * key,const u8 hfunc)3040 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key,
3041 const u8 hfunc)
3042 {
3043 struct ice_netdev_priv *np = netdev_priv(netdev);
3044 struct ice_vsi *vsi = np->vsi;
3045 struct ice_pf *pf = vsi->back;
3046 u8 *seed = NULL;
3047
3048 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3049 return -EOPNOTSUPP;
3050
3051 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3052 /* RSS not supported return error here */
3053 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3054 return -EIO;
3055 }
3056
3057 if (key) {
3058 if (!vsi->rss_hkey_user) {
3059 vsi->rss_hkey_user =
3060 devm_kzalloc(&pf->pdev->dev,
3061 ICE_VSIQF_HKEY_ARRAY_SIZE,
3062 GFP_KERNEL);
3063 if (!vsi->rss_hkey_user)
3064 return -ENOMEM;
3065 }
3066 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
3067 seed = vsi->rss_hkey_user;
3068 }
3069
3070 if (!vsi->rss_lut_user) {
3071 vsi->rss_lut_user = devm_kzalloc(&pf->pdev->dev,
3072 vsi->rss_table_size,
3073 GFP_KERNEL);
3074 if (!vsi->rss_lut_user)
3075 return -ENOMEM;
3076 }
3077
3078 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
3079 if (indir) {
3080 int i;
3081
3082 for (i = 0; i < vsi->rss_table_size; i++)
3083 vsi->rss_lut_user[i] = (u8)(indir[i]);
3084 } else {
3085 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
3086 vsi->rss_size);
3087 }
3088
3089 if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size))
3090 return -EIO;
3091
3092 return 0;
3093 }
3094
3095 enum ice_container_type {
3096 ICE_RX_CONTAINER,
3097 ICE_TX_CONTAINER,
3098 };
3099
3100 /**
3101 * ice_get_rc_coalesce - get ITR values for specific ring container
3102 * @ec: ethtool structure to fill with driver's coalesce settings
3103 * @c_type: container type, Rx or Tx
3104 * @rc: ring container that the ITR values will come from
3105 *
3106 * Query the device for ice_ring_container specific ITR values. This is
3107 * done per ice_ring_container because each q_vector can have 1 or more rings
3108 * and all of said ring(s) will have the same ITR values.
3109 *
3110 * Returns 0 on success, negative otherwise.
3111 */
3112 static int
ice_get_rc_coalesce(struct ethtool_coalesce * ec,enum ice_container_type c_type,struct ice_ring_container * rc)3113 ice_get_rc_coalesce(struct ethtool_coalesce *ec, enum ice_container_type c_type,
3114 struct ice_ring_container *rc)
3115 {
3116 struct ice_pf *pf;
3117
3118 if (!rc->ring)
3119 return -EINVAL;
3120
3121 pf = rc->ring->vsi->back;
3122
3123 switch (c_type) {
3124 case ICE_RX_CONTAINER:
3125 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3126 ec->rx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3127 ec->rx_coalesce_usecs_high = rc->ring->q_vector->intrl;
3128 break;
3129 case ICE_TX_CONTAINER:
3130 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3131 ec->tx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3132 break;
3133 default:
3134 dev_dbg(&pf->pdev->dev, "Invalid c_type %d\n", c_type);
3135 return -EINVAL;
3136 }
3137
3138 return 0;
3139 }
3140
3141 /**
3142 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings
3143 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings
3144 * @ec: coalesce settings to program the device with
3145 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3146 *
3147 * Return 0 on success, and negative under the following conditions:
3148 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed.
3149 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3150 */
3151 static int
ice_get_q_coalesce(struct ice_vsi * vsi,struct ethtool_coalesce * ec,int q_num)3152 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3153 {
3154 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3155 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3156 &vsi->rx_rings[q_num]->q_vector->rx))
3157 return -EINVAL;
3158 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3159 &vsi->tx_rings[q_num]->q_vector->tx))
3160 return -EINVAL;
3161 } else if (q_num < vsi->num_rxq) {
3162 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3163 &vsi->rx_rings[q_num]->q_vector->rx))
3164 return -EINVAL;
3165 } else if (q_num < vsi->num_txq) {
3166 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3167 &vsi->tx_rings[q_num]->q_vector->tx))
3168 return -EINVAL;
3169 } else {
3170 return -EINVAL;
3171 }
3172
3173 return 0;
3174 }
3175
3176 /**
3177 * __ice_get_coalesce - get ITR/INTRL values for the device
3178 * @netdev: pointer to the netdev associated with this query
3179 * @ec: ethtool structure to fill with driver's coalesce settings
3180 * @q_num: queue number to get the coalesce settings for
3181 *
3182 * If the caller passes in a negative q_num then we return coalesce settings
3183 * based on queue number 0, else use the actual q_num passed in.
3184 */
3185 static int
__ice_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,int q_num)3186 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3187 int q_num)
3188 {
3189 struct ice_netdev_priv *np = netdev_priv(netdev);
3190 struct ice_vsi *vsi = np->vsi;
3191
3192 if (q_num < 0)
3193 q_num = 0;
3194
3195 if (ice_get_q_coalesce(vsi, ec, q_num))
3196 return -EINVAL;
3197
3198 return 0;
3199 }
3200
3201 static int
ice_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec)3202 ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3203 {
3204 return __ice_get_coalesce(netdev, ec, -1);
3205 }
3206
3207 static int
ice_get_per_q_coalesce(struct net_device * netdev,u32 q_num,struct ethtool_coalesce * ec)3208 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num,
3209 struct ethtool_coalesce *ec)
3210 {
3211 return __ice_get_coalesce(netdev, ec, q_num);
3212 }
3213
3214 /**
3215 * ice_set_rc_coalesce - set ITR values for specific ring container
3216 * @c_type: container type, Rx or Tx
3217 * @ec: ethtool structure from user to update ITR settings
3218 * @rc: ring container that the ITR values will come from
3219 * @vsi: VSI associated to the ring container
3220 *
3221 * Set specific ITR values. This is done per ice_ring_container because each
3222 * q_vector can have 1 or more rings and all of said ring(s) will have the same
3223 * ITR values.
3224 *
3225 * Returns 0 on success, negative otherwise.
3226 */
3227 static int
ice_set_rc_coalesce(enum ice_container_type c_type,struct ethtool_coalesce * ec,struct ice_ring_container * rc,struct ice_vsi * vsi)3228 ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec,
3229 struct ice_ring_container *rc, struct ice_vsi *vsi)
3230 {
3231 const char *c_type_str = (c_type == ICE_RX_CONTAINER) ? "rx" : "tx";
3232 u32 use_adaptive_coalesce, coalesce_usecs;
3233 struct ice_pf *pf = vsi->back;
3234 u16 itr_setting;
3235
3236 if (!rc->ring)
3237 return -EINVAL;
3238
3239 switch (c_type) {
3240 case ICE_RX_CONTAINER:
3241 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL ||
3242 (ec->rx_coalesce_usecs_high &&
3243 ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) {
3244 netdev_info(vsi->netdev,
3245 "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n",
3246 c_type_str, pf->hw.intrl_gran,
3247 ICE_MAX_INTRL);
3248 return -EINVAL;
3249 }
3250 if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl) {
3251 rc->ring->q_vector->intrl = ec->rx_coalesce_usecs_high;
3252 wr32(&pf->hw, GLINT_RATE(rc->ring->q_vector->reg_idx),
3253 ice_intrl_usec_to_reg(ec->rx_coalesce_usecs_high,
3254 pf->hw.intrl_gran));
3255 }
3256
3257 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce;
3258 coalesce_usecs = ec->rx_coalesce_usecs;
3259
3260 break;
3261 case ICE_TX_CONTAINER:
3262 if (ec->tx_coalesce_usecs_high) {
3263 netdev_info(vsi->netdev,
3264 "setting %s-usecs-high is not supported\n",
3265 c_type_str);
3266 return -EINVAL;
3267 }
3268
3269 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce;
3270 coalesce_usecs = ec->tx_coalesce_usecs;
3271
3272 break;
3273 default:
3274 dev_dbg(&pf->pdev->dev, "Invalid container type %d\n", c_type);
3275 return -EINVAL;
3276 }
3277
3278 itr_setting = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3279 if (coalesce_usecs != itr_setting && use_adaptive_coalesce) {
3280 netdev_info(vsi->netdev,
3281 "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n",
3282 c_type_str, c_type_str);
3283 return -EINVAL;
3284 }
3285
3286 if (coalesce_usecs > ICE_ITR_MAX) {
3287 netdev_info(vsi->netdev,
3288 "Invalid value, %s-usecs range is 0-%d\n",
3289 c_type_str, ICE_ITR_MAX);
3290 return -EINVAL;
3291 }
3292
3293 /* hardware only supports an ITR granularity of 2us */
3294 if (coalesce_usecs % 2 != 0) {
3295 netdev_info(vsi->netdev,
3296 "Invalid value, %s-usecs must be even\n",
3297 c_type_str);
3298 return -EINVAL;
3299 }
3300
3301 if (use_adaptive_coalesce) {
3302 rc->itr_setting |= ICE_ITR_DYNAMIC;
3303 } else {
3304 /* store user facing value how it was set */
3305 rc->itr_setting = coalesce_usecs;
3306 /* set to static and convert to value HW understands */
3307 rc->target_itr =
3308 ITR_TO_REG(ITR_REG_ALIGN(rc->itr_setting));
3309 }
3310
3311 return 0;
3312 }
3313
3314 /**
3315 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings
3316 * @vsi: VSI associated to the queue that need updating
3317 * @ec: coalesce settings to program the device with
3318 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3319 *
3320 * Return 0 on success, and negative under the following conditions:
3321 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed.
3322 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3323 */
3324 static int
ice_set_q_coalesce(struct ice_vsi * vsi,struct ethtool_coalesce * ec,int q_num)3325 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3326 {
3327 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3328 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3329 &vsi->rx_rings[q_num]->q_vector->rx,
3330 vsi))
3331 return -EINVAL;
3332
3333 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3334 &vsi->tx_rings[q_num]->q_vector->tx,
3335 vsi))
3336 return -EINVAL;
3337 } else if (q_num < vsi->num_rxq) {
3338 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3339 &vsi->rx_rings[q_num]->q_vector->rx,
3340 vsi))
3341 return -EINVAL;
3342 } else if (q_num < vsi->num_txq) {
3343 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3344 &vsi->tx_rings[q_num]->q_vector->tx,
3345 vsi))
3346 return -EINVAL;
3347 } else {
3348 return -EINVAL;
3349 }
3350
3351 return 0;
3352 }
3353
3354 /**
3355 * __ice_set_coalesce - set ITR/INTRL values for the device
3356 * @netdev: pointer to the netdev associated with this query
3357 * @ec: ethtool structure to fill with driver's coalesce settings
3358 * @q_num: queue number to get the coalesce settings for
3359 *
3360 * If the caller passes in a negative q_num then we set the coalesce settings
3361 * for all Tx/Rx queues, else use the actual q_num passed in.
3362 */
3363 static int
__ice_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,int q_num)3364 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3365 int q_num)
3366 {
3367 struct ice_netdev_priv *np = netdev_priv(netdev);
3368 struct ice_vsi *vsi = np->vsi;
3369
3370 if (q_num < 0) {
3371 int i;
3372
3373 ice_for_each_q_vector(vsi, i) {
3374 if (ice_set_q_coalesce(vsi, ec, i))
3375 return -EINVAL;
3376 }
3377 goto set_complete;
3378 }
3379
3380 if (ice_set_q_coalesce(vsi, ec, q_num))
3381 return -EINVAL;
3382
3383 set_complete:
3384
3385 return 0;
3386 }
3387
3388 static int
ice_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec)3389 ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3390 {
3391 return __ice_set_coalesce(netdev, ec, -1);
3392 }
3393
3394 static int
ice_set_per_q_coalesce(struct net_device * netdev,u32 q_num,struct ethtool_coalesce * ec)3395 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num,
3396 struct ethtool_coalesce *ec)
3397 {
3398 return __ice_set_coalesce(netdev, ec, q_num);
3399 }
3400
3401 static const struct ethtool_ops ice_ethtool_ops = {
3402 .get_link_ksettings = ice_get_link_ksettings,
3403 .set_link_ksettings = ice_set_link_ksettings,
3404 .get_drvinfo = ice_get_drvinfo,
3405 .get_regs_len = ice_get_regs_len,
3406 .get_regs = ice_get_regs,
3407 .get_msglevel = ice_get_msglevel,
3408 .set_msglevel = ice_set_msglevel,
3409 .self_test = ice_self_test,
3410 .get_link = ethtool_op_get_link,
3411 .get_eeprom_len = ice_get_eeprom_len,
3412 .get_eeprom = ice_get_eeprom,
3413 .get_coalesce = ice_get_coalesce,
3414 .set_coalesce = ice_set_coalesce,
3415 .get_strings = ice_get_strings,
3416 .set_phys_id = ice_set_phys_id,
3417 .get_ethtool_stats = ice_get_ethtool_stats,
3418 .get_priv_flags = ice_get_priv_flags,
3419 .set_priv_flags = ice_set_priv_flags,
3420 .get_sset_count = ice_get_sset_count,
3421 .get_rxnfc = ice_get_rxnfc,
3422 .get_ringparam = ice_get_ringparam,
3423 .set_ringparam = ice_set_ringparam,
3424 .nway_reset = ice_nway_reset,
3425 .get_pauseparam = ice_get_pauseparam,
3426 .set_pauseparam = ice_set_pauseparam,
3427 .get_rxfh_key_size = ice_get_rxfh_key_size,
3428 .get_rxfh_indir_size = ice_get_rxfh_indir_size,
3429 .get_rxfh = ice_get_rxfh,
3430 .set_rxfh = ice_set_rxfh,
3431 .get_ts_info = ethtool_op_get_ts_info,
3432 .get_per_queue_coalesce = ice_get_per_q_coalesce,
3433 .set_per_queue_coalesce = ice_set_per_q_coalesce,
3434 .get_fecparam = ice_get_fecparam,
3435 .set_fecparam = ice_set_fecparam,
3436 };
3437
3438 static const struct ethtool_ops ice_ethtool_safe_mode_ops = {
3439 .get_link_ksettings = ice_get_link_ksettings,
3440 .set_link_ksettings = ice_set_link_ksettings,
3441 .get_drvinfo = ice_get_drvinfo,
3442 .get_regs_len = ice_get_regs_len,
3443 .get_regs = ice_get_regs,
3444 .get_msglevel = ice_get_msglevel,
3445 .set_msglevel = ice_set_msglevel,
3446 .get_eeprom_len = ice_get_eeprom_len,
3447 .get_eeprom = ice_get_eeprom,
3448 .get_strings = ice_get_strings,
3449 .get_ethtool_stats = ice_get_ethtool_stats,
3450 .get_sset_count = ice_get_sset_count,
3451 .get_ringparam = ice_get_ringparam,
3452 .set_ringparam = ice_set_ringparam,
3453 .nway_reset = ice_nway_reset,
3454 };
3455
3456 /**
3457 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops
3458 * @netdev: network interface device structure
3459 */
ice_set_ethtool_safe_mode_ops(struct net_device * netdev)3460 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev)
3461 {
3462 netdev->ethtool_ops = &ice_ethtool_safe_mode_ops;
3463 }
3464
3465 /**
3466 * ice_set_ethtool_ops - setup netdev ethtool ops
3467 * @netdev: network interface device structure
3468 *
3469 * setup netdev ethtool ops with ice specific ops
3470 */
ice_set_ethtool_ops(struct net_device * netdev)3471 void ice_set_ethtool_ops(struct net_device *netdev)
3472 {
3473 netdev->ethtool_ops = &ice_ethtool_ops;
3474 }
3475
