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gpio: rcar: Fix runtime PM imbalance on error
[linux/fpc-iii.git] / drivers / net / ethernet / intel / ice / ice_ethtool.c
blob593fb37bd59e0f1e8df1d6700adf0df545f49ebb
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_flow.h"
8 #include "ice_lib.h"
9 #include "ice_dcb_lib.h"
10
11 struct ice_stats {
12 char stat_string[ETH_GSTRING_LEN];
13 int sizeof_stat;
14 int stat_offset;
15 };
16
17 #define ICE_STAT(_type, _name, _stat) { \
18 .stat_string = _name, \
19 .sizeof_stat = sizeof_field(_type, _stat), \
20 .stat_offset = offsetof(_type, _stat) \
21 }
22
23 #define ICE_VSI_STAT(_name, _stat) \
24 ICE_STAT(struct ice_vsi, _name, _stat)
25 #define ICE_PF_STAT(_name, _stat) \
26 ICE_STAT(struct ice_pf, _name, _stat)
27
28 static int ice_q_stats_len(struct net_device *netdev)
29 {
30 struct ice_netdev_priv *np = netdev_priv(netdev);
31
32 return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
33 (sizeof(struct ice_q_stats) / sizeof(u64)));
34 }
35
36 #define ICE_PF_STATS_LEN ARRAY_SIZE(ice_gstrings_pf_stats)
37 #define ICE_VSI_STATS_LEN ARRAY_SIZE(ice_gstrings_vsi_stats)
38
39 #define ICE_PFC_STATS_LEN ( \
40 (sizeof_field(struct ice_pf, stats.priority_xoff_rx) + \
41 sizeof_field(struct ice_pf, stats.priority_xon_rx) + \
42 sizeof_field(struct ice_pf, stats.priority_xoff_tx) + \
43 sizeof_field(struct ice_pf, stats.priority_xon_tx)) \
44 / sizeof(u64))
45 #define ICE_ALL_STATS_LEN(n) (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \
46 ICE_VSI_STATS_LEN + ice_q_stats_len(n))
47
48 static const struct ice_stats ice_gstrings_vsi_stats[] = {
49 ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
50 ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
51 ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
52 ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
53 ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
54 ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
55 ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
56 ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
57 ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards),
58 ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
59 ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
60 ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
61 ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
62 ICE_VSI_STAT("tx_linearize", tx_linearize),
63 };
64
65 enum ice_ethtool_test_id {
66 ICE_ETH_TEST_REG = 0,
67 ICE_ETH_TEST_EEPROM,
68 ICE_ETH_TEST_INTR,
69 ICE_ETH_TEST_LOOP,
70 ICE_ETH_TEST_LINK,
71 };
72
73 static const char ice_gstrings_test[][ETH_GSTRING_LEN] = {
74 "Register test (offline)",
75 "EEPROM test (offline)",
76 "Interrupt test (offline)",
77 "Loopback test (offline)",
78 "Link test (on/offline)",
79 };
80
81 #define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN)
82
83 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
84 * but they aren't. This device is capable of supporting multiple
85 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
86 * netdevs whereas the PF_STATs are for the physical function that's
87 * hosting these netdevs.
88 *
89 * The PF_STATs are appended to the netdev stats only when ethtool -S
90 * is queried on the base PF netdev.
91 */
92 static const struct ice_stats ice_gstrings_pf_stats[] = {
93 ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes),
94 ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes),
95 ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast),
96 ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast),
97 ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast),
98 ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast),
99 ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast),
100 ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast),
101 ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors),
102 ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64),
103 ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64),
104 ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127),
105 ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127),
106 ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255),
107 ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255),
108 ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511),
109 ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511),
110 ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023),
111 ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023),
112 ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522),
113 ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522),
114 ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big),
115 ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big),
116 ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx),
117 ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx),
118 ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx),
119 ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx),
120 ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down),
121 ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize),
122 ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments),
123 ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
124 ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
125 ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
126 ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
127 ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
128 ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
129 ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
130 ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults),
131 ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults),
132 };
133
134 static const u32 ice_regs_dump_list[] = {
135 PFGEN_STATE,
136 PRTGEN_STATUS,
137 QRX_CTRL(0),
138 QINT_TQCTL(0),
139 QINT_RQCTL(0),
140 PFINT_OICR_ENA,
141 QRX_ITR(0),
142 PF0INT_ITR_0(0),
143 PF0INT_ITR_1(0),
144 PF0INT_ITR_2(0),
145 };
146
147 struct ice_priv_flag {
148 char name[ETH_GSTRING_LEN];
149 u32 bitno; /* bit position in pf->flags */
150 };
151
152 #define ICE_PRIV_FLAG(_name, _bitno) { \
153 .name = _name, \
154 .bitno = _bitno, \
155 }
156
157 static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
158 ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
159 ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
160 ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF),
161 ICE_PRIV_FLAG("legacy-rx", ICE_FLAG_LEGACY_RX),
162 };
163
164 #define ICE_PRIV_FLAG_ARRAY_SIZE ARRAY_SIZE(ice_gstrings_priv_flags)
165
166 static void
167 ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
168 {
169 struct ice_netdev_priv *np = netdev_priv(netdev);
170 struct ice_vsi *vsi = np->vsi;
171 struct ice_pf *pf = vsi->back;
172 struct ice_hw *hw = &pf->hw;
173 struct ice_orom_info *orom;
174 struct ice_nvm_info *nvm;
175
176 nvm = &hw->nvm;
177 orom = &nvm->orom;
178
179 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
180 strscpy(drvinfo->version, ice_drv_ver, sizeof(drvinfo->version));
181
182 /* Display NVM version (from which the firmware version can be
183 * determined) which contains more pertinent information.
184 */
185 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
186 "%x.%02x 0x%x %d.%d.%d", nvm->major_ver, nvm->minor_ver,
187 nvm->eetrack, orom->major, orom->build, orom->patch);
188
189 strscpy(drvinfo->bus_info, pci_name(pf->pdev),
190 sizeof(drvinfo->bus_info));
191 drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE;
192 }
193
194 static int ice_get_regs_len(struct net_device __always_unused *netdev)
195 {
196 return sizeof(ice_regs_dump_list);
197 }
198
199 static void
200 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
201 {
202 struct ice_netdev_priv *np = netdev_priv(netdev);
203 struct ice_pf *pf = np->vsi->back;
204 struct ice_hw *hw = &pf->hw;
205 u32 *regs_buf = (u32 *)p;
206 int i;
207
208 regs->version = 1;
209
210 for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
211 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
212 }
213
214 static u32 ice_get_msglevel(struct net_device *netdev)
215 {
216 struct ice_netdev_priv *np = netdev_priv(netdev);
217 struct ice_pf *pf = np->vsi->back;
218
219 #ifndef CONFIG_DYNAMIC_DEBUG
220 if (pf->hw.debug_mask)
221 netdev_info(netdev, "hw debug_mask: 0x%llX\n",
222 pf->hw.debug_mask);
223 #endif /* !CONFIG_DYNAMIC_DEBUG */
224
225 return pf->msg_enable;
226 }
227
228 static void ice_set_msglevel(struct net_device *netdev, u32 data)
229 {
230 struct ice_netdev_priv *np = netdev_priv(netdev);
231 struct ice_pf *pf = np->vsi->back;
232
233 #ifndef CONFIG_DYNAMIC_DEBUG
234 if (ICE_DBG_USER & data)
235 pf->hw.debug_mask = data;
236 else
237 pf->msg_enable = data;
238 #else
239 pf->msg_enable = data;
240 #endif /* !CONFIG_DYNAMIC_DEBUG */
241 }
242
243 static int ice_get_eeprom_len(struct net_device *netdev)
244 {
245 struct ice_netdev_priv *np = netdev_priv(netdev);
246 struct ice_pf *pf = np->vsi->back;
247
248 return (int)pf->hw.nvm.flash_size;
249 }
250
251 static int
252 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
253 u8 *bytes)
254 {
255 struct ice_netdev_priv *np = netdev_priv(netdev);
256 struct ice_vsi *vsi = np->vsi;
257 struct ice_pf *pf = vsi->back;
258 struct ice_hw *hw = &pf->hw;
259 enum ice_status status;
260 struct device *dev;
261 int ret = 0;
262 u8 *buf;
263
264 dev = ice_pf_to_dev(pf);
265
266 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
267 netdev_dbg(netdev, "GEEPROM cmd 0x%08x, offset 0x%08x, len 0x%08x\n",
268 eeprom->cmd, eeprom->offset, eeprom->len);
269
270 buf = kzalloc(eeprom->len, GFP_KERNEL);
271 if (!buf)
272 return -ENOMEM;
273
274 status = ice_acquire_nvm(hw, ICE_RES_READ);
275 if (status) {
276 dev_err(dev, "ice_acquire_nvm failed, err %d aq_err %d\n",
277 status, hw->adminq.sq_last_status);
278 ret = -EIO;
279 goto out;
280 }
281
282 status = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->len, buf,
283 false);
284 if (status) {
285 dev_err(dev, "ice_read_flat_nvm failed, err %d aq_err %d\n",
286 status, hw->adminq.sq_last_status);
287 ret = -EIO;
288 goto release;
289 }
290
291 memcpy(bytes, buf, eeprom->len);
292 release:
293 ice_release_nvm(hw);
294 out:
295 kfree(buf);
296 return ret;
297 }
298
299 /**
300 * ice_active_vfs - check if there are any active VFs
301 * @pf: board private structure
302 *
303 * Returns true if an active VF is found, otherwise returns false
304 */
305 static bool ice_active_vfs(struct ice_pf *pf)
306 {
307 int i;
308
309 ice_for_each_vf(pf, i) {
310 struct ice_vf *vf = &pf->vf[i];
311
312 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
313 return true;
314 }
315
316 return false;
317 }
318
319 /**
320 * ice_link_test - perform a link test on a given net_device
321 * @netdev: network interface device structure
322 *
323 * This function performs one of the self-tests required by ethtool.
324 * Returns 0 on success, non-zero on failure.
325 */
326 static u64 ice_link_test(struct net_device *netdev)
327 {
328 struct ice_netdev_priv *np = netdev_priv(netdev);
329 enum ice_status status;
330 bool link_up = false;
331
332 netdev_info(netdev, "link test\n");
333 status = ice_get_link_status(np->vsi->port_info, &link_up);
334 if (status) {
335 netdev_err(netdev, "link query error, status = %d\n", status);
336 return 1;
337 }
338
339 if (!link_up)
340 return 2;
341
342 return 0;
343 }
344
345 /**
346 * ice_eeprom_test - perform an EEPROM test on a given net_device
347 * @netdev: network interface device structure
348 *
349 * This function performs one of the self-tests required by ethtool.
350 * Returns 0 on success, non-zero on failure.
351 */
352 static u64 ice_eeprom_test(struct net_device *netdev)
353 {
354 struct ice_netdev_priv *np = netdev_priv(netdev);
355 struct ice_pf *pf = np->vsi->back;
356
357 netdev_info(netdev, "EEPROM test\n");
358 return !!(ice_nvm_validate_checksum(&pf->hw));
359 }
360
361 /**
362 * ice_reg_pattern_test
363 * @hw: pointer to the HW struct
364 * @reg: reg to be tested
365 * @mask: bits to be touched
366 */
367 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask)
368 {
369 struct ice_pf *pf = (struct ice_pf *)hw->back;
370 struct device *dev = ice_pf_to_dev(pf);
371 static const u32 patterns[] = {
372 0x5A5A5A5A, 0xA5A5A5A5,
373 0x00000000, 0xFFFFFFFF
374 };
375 u32 val, orig_val;
376 int i;
377
378 orig_val = rd32(hw, reg);
379 for (i = 0; i < ARRAY_SIZE(patterns); ++i) {
380 u32 pattern = patterns[i] & mask;
381
382 wr32(hw, reg, pattern);
383 val = rd32(hw, reg);
384 if (val == pattern)
385 continue;
386 dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n"
387 , __func__, reg, pattern, val);
388 return 1;
389 }
390
391 wr32(hw, reg, orig_val);
392 val = rd32(hw, reg);
393 if (val != orig_val) {
394 dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n"
395 , __func__, reg, orig_val, val);
396 return 1;
397 }
398
399 return 0;
400 }
401
402 /**
403 * ice_reg_test - perform a register test on a given net_device
404 * @netdev: network interface device structure
405 *
406 * This function performs one of the self-tests required by ethtool.
407 * Returns 0 on success, non-zero on failure.
408 */
409 static u64 ice_reg_test(struct net_device *netdev)
410 {
411 struct ice_netdev_priv *np = netdev_priv(netdev);
412 struct ice_hw *hw = np->vsi->port_info->hw;
413 u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ?
414 hw->func_caps.common_cap.num_msix_vectors - 1 : 1;
415 struct ice_diag_reg_test_info {
416 u32 address;
417 u32 mask;
418 u32 elem_num;
419 u32 elem_size;
420 } ice_reg_list[] = {
421 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
422 GLINT_ITR(0, 1) - GLINT_ITR(0, 0)},
423 {GLINT_ITR(1, 0), 0x00000fff, int_elements,
424 GLINT_ITR(1, 1) - GLINT_ITR(1, 0)},
425 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
426 GLINT_ITR(2, 1) - GLINT_ITR(2, 0)},
427 {GLINT_CTL, 0xffff0001, 1, 0}
428 };
429 int i;
430
431 netdev_dbg(netdev, "Register test\n");
432 for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) {
433 u32 j;
434
435 for (j = 0; j < ice_reg_list[i].elem_num; ++j) {
436 u32 mask = ice_reg_list[i].mask;
437 u32 reg = ice_reg_list[i].address +
438 (j * ice_reg_list[i].elem_size);
439
440 /* bail on failure (non-zero return) */
441 if (ice_reg_pattern_test(hw, reg, mask))
442 return 1;
443 }
444 }
445
446 return 0;
447 }
448
449 /**
450 * ice_lbtest_prepare_rings - configure Tx/Rx test rings
451 * @vsi: pointer to the VSI structure
452 *
453 * Function configures rings of a VSI for loopback test without
454 * enabling interrupts or informing the kernel about new queues.
455 *
456 * Returns 0 on success, negative on failure.
457 */
458 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi)
459 {
460 int status;
461
462 status = ice_vsi_setup_tx_rings(vsi);
463 if (status)
464 goto err_setup_tx_ring;
465
466 status = ice_vsi_setup_rx_rings(vsi);
467 if (status)
468 goto err_setup_rx_ring;
469
470 status = ice_vsi_cfg(vsi);
471 if (status)
472 goto err_setup_rx_ring;
473
474 status = ice_vsi_start_all_rx_rings(vsi);
475 if (status)
476 goto err_start_rx_ring;
477
478 return status;
479
480 err_start_rx_ring:
481 ice_vsi_free_rx_rings(vsi);
482 err_setup_rx_ring:
483 ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
484 err_setup_tx_ring:
485 ice_vsi_free_tx_rings(vsi);
486
487 return status;
488 }
489
490 /**
491 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test
492 * @vsi: pointer to the VSI structure
493 *
494 * Function stops and frees VSI rings after a loopback test.
495 * Returns 0 on success, negative on failure.
496 */
497 static int ice_lbtest_disable_rings(struct ice_vsi *vsi)
498 {
499 int status;
500
501 status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
502 if (status)
503 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n",
504 vsi->vsi_num, status);
505
506 status = ice_vsi_stop_all_rx_rings(vsi);
507 if (status)
508 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n",
509 vsi->vsi_num, status);
510
511 ice_vsi_free_tx_rings(vsi);
512 ice_vsi_free_rx_rings(vsi);
513
514 return status;
515 }
516
517 /**
518 * ice_lbtest_create_frame - create test packet
519 * @pf: pointer to the PF structure
520 * @ret_data: allocated frame buffer
521 * @size: size of the packet data
522 *
523 * Function allocates a frame with a test pattern on specific offsets.
524 * Returns 0 on success, non-zero on failure.
525 */
526 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size)
527 {
528 u8 *data;
529
530 if (!pf)
531 return -EINVAL;
532
533 data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL);
534 if (!data)
535 return -ENOMEM;
536
537 /* Since the ethernet test frame should always be at least
538 * 64 bytes long, fill some octets in the payload with test data.
539 */
540 memset(data, 0xFF, size);
541 data[32] = 0xDE;
542 data[42] = 0xAD;
543 data[44] = 0xBE;
544 data[46] = 0xEF;
545
546 *ret_data = data;
547
548 return 0;
549 }
550
551 /**
552 * ice_lbtest_check_frame - verify received loopback frame
553 * @frame: pointer to the raw packet data
554 *
555 * Function verifies received test frame with a pattern.
556 * Returns true if frame matches the pattern, false otherwise.
557 */
558 static bool ice_lbtest_check_frame(u8 *frame)
559 {
560 /* Validate bytes of a frame under offsets chosen earlier */
561 if (frame[32] == 0xDE &&
562 frame[42] == 0xAD &&
563 frame[44] == 0xBE &&
564 frame[46] == 0xEF &&
565 frame[48] == 0xFF)
566 return true;
567
568 return false;
569 }
570
571 /**
572 * ice_diag_send - send test frames to the test ring
573 * @tx_ring: pointer to the transmit ring
574 * @data: pointer to the raw packet data
575 * @size: size of the packet to send
576 *
577 * Function sends loopback packets on a test Tx ring.
578 */
579 static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size)
580 {
581 struct ice_tx_desc *tx_desc;
582 struct ice_tx_buf *tx_buf;
583 dma_addr_t dma;
584 u64 td_cmd;
585
586 tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use);
587 tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use];
588
589 dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE);
590 if (dma_mapping_error(tx_ring->dev, dma))
591 return -EINVAL;
592
593 tx_desc->buf_addr = cpu_to_le64(dma);
594
595 /* These flags are required for a descriptor to be pushed out */
596 td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS);
597 tx_desc->cmd_type_offset_bsz =
598 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA |
599 (td_cmd << ICE_TXD_QW1_CMD_S) |
600 ((u64)0 << ICE_TXD_QW1_OFFSET_S) |
601 ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
602 ((u64)0 << ICE_TXD_QW1_L2TAG1_S));
603
604 tx_buf->next_to_watch = tx_desc;
605
606 /* Force memory write to complete before letting h/w know
607 * there are new descriptors to fetch.
608 */
609 wmb();
610
611 tx_ring->next_to_use++;
612 if (tx_ring->next_to_use >= tx_ring->count)
613 tx_ring->next_to_use = 0;
614
615 writel_relaxed(tx_ring->next_to_use, tx_ring->tail);
616
617 /* Wait until the packets get transmitted to the receive queue. */
618 usleep_range(1000, 2000);
619 dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE);
620
621 return 0;
622 }
623
624 #define ICE_LB_FRAME_SIZE 64
625 /**
626 * ice_lbtest_receive_frames - receive and verify test frames
627 * @rx_ring: pointer to the receive ring
628 *
629 * Function receives loopback packets and verify their correctness.
630 * Returns number of received valid frames.
631 */
632 static int ice_lbtest_receive_frames(struct ice_ring *rx_ring)
633 {
634 struct ice_rx_buf *rx_buf;
635 int valid_frames, i;
636 u8 *received_buf;
637
638 valid_frames = 0;
639
640 for (i = 0; i < rx_ring->count; i++) {
641 union ice_32b_rx_flex_desc *rx_desc;
642
643 rx_desc = ICE_RX_DESC(rx_ring, i);
644
645 if (!(rx_desc->wb.status_error0 &
646 cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS)))
647 continue;
648
649 rx_buf = &rx_ring->rx_buf[i];
650 received_buf = page_address(rx_buf->page) + rx_buf->page_offset;
651
652 if (ice_lbtest_check_frame(received_buf))
653 valid_frames++;
654 }
655
656 return valid_frames;
657 }
658
659 /**
660 * ice_loopback_test - perform a loopback test on a given net_device
661 * @netdev: network interface device structure
662 *
663 * This function performs one of the self-tests required by ethtool.
664 * Returns 0 on success, non-zero on failure.
665 */
666 static u64 ice_loopback_test(struct net_device *netdev)
667 {
668 struct ice_netdev_priv *np = netdev_priv(netdev);
669 struct ice_vsi *orig_vsi = np->vsi, *test_vsi;
670 struct ice_pf *pf = orig_vsi->back;
671 struct ice_ring *tx_ring, *rx_ring;
672 u8 broadcast[ETH_ALEN], ret = 0;
673 int num_frames, valid_frames;
674 LIST_HEAD(tmp_list);
675 struct device *dev;
676 u8 *tx_frame;
677 int i;
678
679 dev = ice_pf_to_dev(pf);
680 netdev_info(netdev, "loopback test\n");
681
682 test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info);
683 if (!test_vsi) {
684 netdev_err(netdev, "Failed to create a VSI for the loopback test\n");
685 return 1;
686 }
687
688 test_vsi->netdev = netdev;
689 tx_ring = test_vsi->tx_rings[0];
690 rx_ring = test_vsi->rx_rings[0];
691
692 if (ice_lbtest_prepare_rings(test_vsi)) {
693 ret = 2;
694 goto lbtest_vsi_close;
695 }
696
697 if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) {
698 ret = 3;
699 goto lbtest_rings_dis;
700 }
701
702 /* Enable MAC loopback in firmware */
703 if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) {
704 ret = 4;
705 goto lbtest_mac_dis;
706 }
707
708 /* Test VSI needs to receive broadcast packets */
709 eth_broadcast_addr(broadcast);
710 if (ice_add_mac_to_list(test_vsi, &tmp_list, broadcast)) {
711 ret = 5;
712 goto lbtest_mac_dis;
713 }
714
715 if (ice_add_mac(&pf->hw, &tmp_list)) {
716 ret = 6;
717 goto free_mac_list;
718 }
719
720 if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) {
721 ret = 7;
722 goto remove_mac_filters;
723 }
724
725 num_frames = min_t(int, tx_ring->count, 32);
726 for (i = 0; i < num_frames; i++) {
727 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) {
728 ret = 8;
729 goto lbtest_free_frame;
730 }
731 }
732
733 valid_frames = ice_lbtest_receive_frames(rx_ring);
734 if (!valid_frames)
735 ret = 9;
736 else if (valid_frames != num_frames)
737 ret = 10;
738
739 lbtest_free_frame:
740 devm_kfree(dev, tx_frame);
741 remove_mac_filters:
742 if (ice_remove_mac(&pf->hw, &tmp_list))
743 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n");
744 free_mac_list:
745 ice_free_fltr_list(dev, &tmp_list);
746 lbtest_mac_dis:
747 /* Disable MAC loopback after the test is completed. */
748 if (ice_aq_set_mac_loopback(&pf->hw, false, NULL))
749 netdev_err(netdev, "Could not disable MAC loopback\n");
750 lbtest_rings_dis:
751 if (ice_lbtest_disable_rings(test_vsi))
752 netdev_err(netdev, "Could not disable test rings\n");
753 lbtest_vsi_close:
754 test_vsi->netdev = NULL;
755 if (ice_vsi_release(test_vsi))
756 netdev_err(netdev, "Failed to remove the test VSI\n");
757
758 return ret;
759 }
760
761 /**
762 * ice_intr_test - perform an interrupt test on a given net_device
763 * @netdev: network interface device structure
764 *
765 * This function performs one of the self-tests required by ethtool.
766 * Returns 0 on success, non-zero on failure.
767 */
768 static u64 ice_intr_test(struct net_device *netdev)
769 {
770 struct ice_netdev_priv *np = netdev_priv(netdev);
771 struct ice_pf *pf = np->vsi->back;
772 u16 swic_old = pf->sw_int_count;
773
774 netdev_info(netdev, "interrupt test\n");
775
776 wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx),
777 GLINT_DYN_CTL_SW_ITR_INDX_M |
778 GLINT_DYN_CTL_INTENA_MSK_M |
779 GLINT_DYN_CTL_SWINT_TRIG_M);
780
781 usleep_range(1000, 2000);
782 return (swic_old == pf->sw_int_count);
783 }
784
785 /**
786 * ice_self_test - handler function for performing a self-test by ethtool
787 * @netdev: network interface device structure
788 * @eth_test: ethtool_test structure
789 * @data: required by ethtool.self_test
790 *
791 * This function is called after invoking 'ethtool -t devname' command where
792 * devname is the name of the network device on which ethtool should operate.
793 * It performs a set of self-tests to check if a device works properly.
794 */
795 static void
796 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
797 u64 *data)
798 {
799 struct ice_netdev_priv *np = netdev_priv(netdev);
800 bool if_running = netif_running(netdev);
801 struct ice_pf *pf = np->vsi->back;
802 struct device *dev;
803
804 dev = ice_pf_to_dev(pf);
805
806 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
807 netdev_info(netdev, "offline testing starting\n");
808
809 set_bit(__ICE_TESTING, pf->state);
810
811 if (ice_active_vfs(pf)) {
812 dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
813 data[ICE_ETH_TEST_REG] = 1;
814 data[ICE_ETH_TEST_EEPROM] = 1;
815 data[ICE_ETH_TEST_INTR] = 1;
816 data[ICE_ETH_TEST_LOOP] = 1;
817 data[ICE_ETH_TEST_LINK] = 1;
818 eth_test->flags |= ETH_TEST_FL_FAILED;
819 clear_bit(__ICE_TESTING, pf->state);
820 goto skip_ol_tests;
821 }
822 /* If the device is online then take it offline */
823 if (if_running)
824 /* indicate we're in test mode */
825 ice_stop(netdev);
826
827 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
828 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev);
829 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev);
830 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev);
831 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev);
832
833 if (data[ICE_ETH_TEST_LINK] ||
834 data[ICE_ETH_TEST_EEPROM] ||
835 data[ICE_ETH_TEST_LOOP] ||
836 data[ICE_ETH_TEST_INTR] ||
837 data[ICE_ETH_TEST_REG])
838 eth_test->flags |= ETH_TEST_FL_FAILED;
839
840 clear_bit(__ICE_TESTING, pf->state);
841
842 if (if_running) {
843 int status = ice_open(netdev);
844
845 if (status) {
846 dev_err(dev, "Could not open device %s, err %d\n",
847 pf->int_name, status);
848 }
849 }
850 } else {
851 /* Online tests */
852 netdev_info(netdev, "online testing starting\n");
853
854 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
855 if (data[ICE_ETH_TEST_LINK])
856 eth_test->flags |= ETH_TEST_FL_FAILED;
857
858 /* Offline only tests, not run in online; pass by default */
859 data[ICE_ETH_TEST_REG] = 0;
860 data[ICE_ETH_TEST_EEPROM] = 0;
861 data[ICE_ETH_TEST_INTR] = 0;
862 data[ICE_ETH_TEST_LOOP] = 0;
863 }
864
865 skip_ol_tests:
866 netdev_info(netdev, "testing finished\n");
867 }
868
869 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
870 {
871 struct ice_netdev_priv *np = netdev_priv(netdev);
872 struct ice_vsi *vsi = np->vsi;
873 char *p = (char *)data;
874 unsigned int i;
875
876 switch (stringset) {
877 case ETH_SS_STATS:
878 for (i = 0; i < ICE_VSI_STATS_LEN; i++) {
879 snprintf(p, ETH_GSTRING_LEN, "%s",
880 ice_gstrings_vsi_stats[i].stat_string);
881 p += ETH_GSTRING_LEN;
882 }
883
884 ice_for_each_alloc_txq(vsi, i) {
885 snprintf(p, ETH_GSTRING_LEN,
886 "tx_queue_%u_packets", i);
887 p += ETH_GSTRING_LEN;
888 snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i);
889 p += ETH_GSTRING_LEN;
890 }
891
892 ice_for_each_alloc_rxq(vsi, i) {
893 snprintf(p, ETH_GSTRING_LEN,
894 "rx_queue_%u_packets", i);
895 p += ETH_GSTRING_LEN;
896 snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i);
897 p += ETH_GSTRING_LEN;
898 }
899
900 if (vsi->type != ICE_VSI_PF)
901 return;
902
903 for (i = 0; i < ICE_PF_STATS_LEN; i++) {
904 snprintf(p, ETH_GSTRING_LEN, "%s",
905 ice_gstrings_pf_stats[i].stat_string);
906 p += ETH_GSTRING_LEN;
907 }
908
909 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
910 snprintf(p, ETH_GSTRING_LEN,
911 "tx_priority_%u_xon.nic", i);
912 p += ETH_GSTRING_LEN;
913 snprintf(p, ETH_GSTRING_LEN,
914 "tx_priority_%u_xoff.nic", i);
915 p += ETH_GSTRING_LEN;
916 }
917 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
918 snprintf(p, ETH_GSTRING_LEN,
919 "rx_priority_%u_xon.nic", i);
920 p += ETH_GSTRING_LEN;
921 snprintf(p, ETH_GSTRING_LEN,
922 "rx_priority_%u_xoff.nic", i);
923 p += ETH_GSTRING_LEN;
924 }
925 break;
926 case ETH_SS_TEST:
927 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN);
928 break;
929 case ETH_SS_PRIV_FLAGS:
930 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
931 snprintf(p, ETH_GSTRING_LEN, "%s",
932 ice_gstrings_priv_flags[i].name);
933 p += ETH_GSTRING_LEN;
934 }
935 break;
936 default:
937 break;
938 }
939 }
940
941 static int
942 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
943 {
944 struct ice_netdev_priv *np = netdev_priv(netdev);
945 bool led_active;
946
947 switch (state) {
948 case ETHTOOL_ID_ACTIVE:
949 led_active = true;
950 break;
951 case ETHTOOL_ID_INACTIVE:
952 led_active = false;
953 break;
954 default:
955 return -EINVAL;
956 }
957
958 if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL))
959 return -EIO;
960
961 return 0;
962 }
963
964 /**
965 * ice_set_fec_cfg - Set link FEC options
966 * @netdev: network interface device structure
967 * @req_fec: FEC mode to configure
968 */
969 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec)
970 {
971 struct ice_netdev_priv *np = netdev_priv(netdev);
972 struct ice_aqc_set_phy_cfg_data config = { 0 };
973 struct ice_aqc_get_phy_caps_data *caps;
974 struct ice_vsi *vsi = np->vsi;
975 u8 sw_cfg_caps, sw_cfg_fec;
976 struct ice_port_info *pi;
977 enum ice_status status;
978 int err = 0;
979
980 pi = vsi->port_info;
981 if (!pi)
982 return -EOPNOTSUPP;
983
984 /* Changing the FEC parameters is not supported if not the PF VSI */
985 if (vsi->type != ICE_VSI_PF) {
986 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n");
987 return -EOPNOTSUPP;
988 }
989
990 /* Get last SW configuration */
991 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
992 if (!caps)
993 return -ENOMEM;
994
995 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG,
996 caps, NULL);
997 if (status) {
998 err = -EAGAIN;
999 goto done;
1000 }
1001
1002 /* Copy SW configuration returned from PHY caps to PHY config */
1003 ice_copy_phy_caps_to_cfg(caps, &config);
1004 sw_cfg_caps = caps->caps;
1005 sw_cfg_fec = caps->link_fec_options;
1006
1007 /* Get toloplogy caps, then copy PHY FEC topoloy caps to PHY config */
1008 memset(caps, 0, sizeof(*caps));
1009
1010 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
1011 caps, NULL);
1012 if (status) {
1013 err = -EAGAIN;
1014 goto done;
1015 }
1016
1017 config.caps |= (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC);
1018 config.link_fec_opt = caps->link_fec_options;
1019
1020 ice_cfg_phy_fec(&config, req_fec);
1021
1022 /* If FEC mode has changed, then set PHY configuration and enable AN. */
1023 if ((config.caps & ICE_AQ_PHY_ENA_AUTO_FEC) !=
1024 (sw_cfg_caps & ICE_AQC_PHY_EN_AUTO_FEC) ||
1025 config.link_fec_opt != sw_cfg_fec) {
1026 if (caps->caps & ICE_AQC_PHY_AN_MODE)
1027 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
1028
1029 status = ice_aq_set_phy_cfg(pi->hw, pi->lport, &config, NULL);
1030
1031 if (status)
1032 err = -EAGAIN;
1033 }
1034
1035 done:
1036 kfree(caps);
1037 return err;
1038 }
1039
1040 /**
1041 * ice_set_fecparam - Set FEC link options
1042 * @netdev: network interface device structure
1043 * @fecparam: Ethtool structure to retrieve FEC parameters
1044 */
1045 static int
1046 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1047 {
1048 struct ice_netdev_priv *np = netdev_priv(netdev);
1049 struct ice_vsi *vsi = np->vsi;
1050 enum ice_fec_mode fec;
1051
1052 switch (fecparam->fec) {
1053 case ETHTOOL_FEC_AUTO:
1054 fec = ICE_FEC_AUTO;
1055 break;
1056 case ETHTOOL_FEC_RS:
1057 fec = ICE_FEC_RS;
1058 break;
1059 case ETHTOOL_FEC_BASER:
1060 fec = ICE_FEC_BASER;
1061 break;
1062 case ETHTOOL_FEC_OFF:
1063 case ETHTOOL_FEC_NONE:
1064 fec = ICE_FEC_NONE;
1065 break;
1066 default:
1067 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n",
1068 fecparam->fec);
1069 return -EINVAL;
1070 }
1071
1072 return ice_set_fec_cfg(netdev, fec);
1073 }
1074
1075 /**
1076 * ice_get_fecparam - Get link FEC options
1077 * @netdev: network interface device structure
1078 * @fecparam: Ethtool structure to retrieve FEC parameters
1079 */
1080 static int
1081 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1082 {
1083 struct ice_netdev_priv *np = netdev_priv(netdev);
1084 struct ice_aqc_get_phy_caps_data *caps;
1085 struct ice_link_status *link_info;
1086 struct ice_vsi *vsi = np->vsi;
1087 struct ice_port_info *pi;
1088 enum ice_status status;
1089 int err = 0;
1090
1091 pi = vsi->port_info;
1092
1093 if (!pi)
1094 return -EOPNOTSUPP;
1095 link_info = &pi->phy.link_info;
1096
1097 /* Set FEC mode based on negotiated link info */
1098 switch (link_info->fec_info) {
1099 case ICE_AQ_LINK_25G_KR_FEC_EN:
1100 fecparam->active_fec = ETHTOOL_FEC_BASER;
1101 break;
1102 case ICE_AQ_LINK_25G_RS_528_FEC_EN:
1103 case ICE_AQ_LINK_25G_RS_544_FEC_EN:
1104 fecparam->active_fec = ETHTOOL_FEC_RS;
1105 break;
1106 default:
1107 fecparam->active_fec = ETHTOOL_FEC_OFF;
1108 break;
1109 }
1110
1111 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
1112 if (!caps)
1113 return -ENOMEM;
1114
1115 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
1116 caps, NULL);
1117 if (status) {
1118 err = -EAGAIN;
1119 goto done;
1120 }
1121
1122 /* Set supported/configured FEC modes based on PHY capability */
1123 if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC)
1124 fecparam->fec |= ETHTOOL_FEC_AUTO;
1125 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
1126 caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1127 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN ||
1128 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1129 fecparam->fec |= ETHTOOL_FEC_BASER;
1130 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1131 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ ||
1132 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
1133 fecparam->fec |= ETHTOOL_FEC_RS;
1134 if (caps->link_fec_options == 0)
1135 fecparam->fec |= ETHTOOL_FEC_OFF;
1136
1137 done:
1138 kfree(caps);
1139 return err;
1140 }
1141
1142 /**
1143 * ice_nway_reset - restart autonegotiation
1144 * @netdev: network interface device structure
1145 */
1146 static int ice_nway_reset(struct net_device *netdev)
1147 {
1148 struct ice_netdev_priv *np = netdev_priv(netdev);
1149 struct ice_vsi *vsi = np->vsi;
1150 struct ice_port_info *pi;
1151 enum ice_status status;
1152
1153 pi = vsi->port_info;
1154 /* If VSI state is up, then restart autoneg with link up */
1155 if (!test_bit(__ICE_DOWN, vsi->back->state))
1156 status = ice_aq_set_link_restart_an(pi, true, NULL);
1157 else
1158 status = ice_aq_set_link_restart_an(pi, false, NULL);
1159
1160 if (status) {
1161 netdev_info(netdev, "link restart failed, err %d aq_err %d\n",
1162 status, pi->hw->adminq.sq_last_status);
1163 return -EIO;
1164 }
1165
1166 return 0;
1167 }
1168
1169 /**
1170 * ice_get_priv_flags - report device private flags
1171 * @netdev: network interface device structure
1172 *
1173 * The get string set count and the string set should be matched for each
1174 * flag returned. Add new strings for each flag to the ice_gstrings_priv_flags
1175 * array.
1176 *
1177 * Returns a u32 bitmap of flags.
1178 */
1179 static u32 ice_get_priv_flags(struct net_device *netdev)
1180 {
1181 struct ice_netdev_priv *np = netdev_priv(netdev);
1182 struct ice_vsi *vsi = np->vsi;
1183 struct ice_pf *pf = vsi->back;
1184 u32 i, ret_flags = 0;
1185
1186 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1187 const struct ice_priv_flag *priv_flag;
1188
1189 priv_flag = &ice_gstrings_priv_flags[i];
1190
1191 if (test_bit(priv_flag->bitno, pf->flags))
1192 ret_flags |= BIT(i);
1193 }
1194
1195 return ret_flags;
1196 }
1197
1198 /**
1199 * ice_set_priv_flags - set private flags
1200 * @netdev: network interface device structure
1201 * @flags: bit flags to be set
1202 */
1203 static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
1204 {
1205 struct ice_netdev_priv *np = netdev_priv(netdev);
1206 DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS);
1207 DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS);
1208 struct ice_vsi *vsi = np->vsi;
1209 struct ice_pf *pf = vsi->back;
1210 struct device *dev;
1211 int ret = 0;
1212 u32 i;
1213
1214 if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE))
1215 return -EINVAL;
1216
1217 dev = ice_pf_to_dev(pf);
1218 set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1219
1220 bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS);
1221 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1222 const struct ice_priv_flag *priv_flag;
1223
1224 priv_flag = &ice_gstrings_priv_flags[i];
1225
1226 if (flags & BIT(i))
1227 set_bit(priv_flag->bitno, pf->flags);
1228 else
1229 clear_bit(priv_flag->bitno, pf->flags);
1230 }
1231
1232 bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS);
1233
1234 if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) {
1235 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) {
1236 enum ice_status status;
1237
1238 /* Disable FW LLDP engine */
1239 status = ice_cfg_lldp_mib_change(&pf->hw, false);
1240
1241 /* If unregistering for LLDP events fails, this is
1242 * not an error state, as there shouldn't be any
1243 * events to respond to.
1244 */
1245 if (status)
1246 dev_info(dev, "Failed to unreg for LLDP events\n");
1247
1248 /* The AQ call to stop the FW LLDP agent will generate
1249 * an error if the agent is already stopped.
1250 */
1251 status = ice_aq_stop_lldp(&pf->hw, true, true, NULL);
1252 if (status)
1253 dev_warn(dev, "Fail to stop LLDP agent\n");
1254 /* Use case for having the FW LLDP agent stopped
1255 * will likely not need DCB, so failure to init is
1256 * not a concern of ethtool
1257 */
1258 status = ice_init_pf_dcb(pf, true);
1259 if (status)
1260 dev_warn(dev, "Fail to init DCB\n");
1261 } else {
1262 enum ice_status status;
1263 bool dcbx_agent_status;
1264
1265 /* AQ command to start FW LLDP agent will return an
1266 * error if the agent is already started
1267 */
1268 status = ice_aq_start_lldp(&pf->hw, true, NULL);
1269 if (status)
1270 dev_warn(dev, "Fail to start LLDP Agent\n");
1271
1272 /* AQ command to start FW DCBX agent will fail if
1273 * the agent is already started
1274 */
1275 status = ice_aq_start_stop_dcbx(&pf->hw, true,
1276 &dcbx_agent_status,
1277 NULL);
1278 if (status)
1279 dev_dbg(dev, "Failed to start FW DCBX\n");
1280
1281 dev_info(dev, "FW DCBX agent is %s\n",
1282 dcbx_agent_status ? "ACTIVE" : "DISABLED");
1283
1284 /* Failure to configure MIB change or init DCB is not
1285 * relevant to ethtool. Print notification that
1286 * registration/init failed but do not return error
1287 * state to ethtool
1288 */
1289 status = ice_init_pf_dcb(pf, true);
1290 if (status)
1291 dev_dbg(dev, "Fail to init DCB\n");
1292
1293 /* Remove rule to direct LLDP packets to default VSI.
1294 * The FW LLDP engine will now be consuming them.
1295 */
1296 ice_cfg_sw_lldp(vsi, false, false);
1297
1298 /* Register for MIB change events */
1299 status = ice_cfg_lldp_mib_change(&pf->hw, true);
1300 if (status)
1301 dev_dbg(dev, "Fail to enable MIB change events\n");
1302
1303 ice_nway_reset(netdev);
1304 }
1305 }
1306 if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) {
1307 /* down and up VSI so that changes of Rx cfg are reflected. */
1308 ice_down(vsi);
1309 ice_up(vsi);
1310 }
1311 clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1312 return ret;
1313 }
1314
1315 static int ice_get_sset_count(struct net_device *netdev, int sset)
1316 {
1317 switch (sset) {
1318 case ETH_SS_STATS:
1319 /* The number (and order) of strings reported *must* remain
1320 * constant for a given netdevice. This function must not
1321 * report a different number based on run time parameters
1322 * (such as the number of queues in use, or the setting of
1323 * a private ethtool flag). This is due to the nature of the
1324 * ethtool stats API.
1325 *
1326 * Userspace programs such as ethtool must make 3 separate
1327 * ioctl requests, one for size, one for the strings, and
1328 * finally one for the stats. Since these cross into
1329 * userspace, changes to the number or size could result in
1330 * undefined memory access or incorrect string<->value
1331 * correlations for statistics.
1332 *
1333 * Even if it appears to be safe, changes to the size or
1334 * order of strings will suffer from race conditions and are
1335 * not safe.
1336 */
1337 return ICE_ALL_STATS_LEN(netdev);
1338 case ETH_SS_TEST:
1339 return ICE_TEST_LEN;
1340 case ETH_SS_PRIV_FLAGS:
1341 return ICE_PRIV_FLAG_ARRAY_SIZE;
1342 default:
1343 return -EOPNOTSUPP;
1344 }
1345 }
1346
1347 static void
1348 ice_get_ethtool_stats(struct net_device *netdev,
1349 struct ethtool_stats __always_unused *stats, u64 *data)
1350 {
1351 struct ice_netdev_priv *np = netdev_priv(netdev);
1352 struct ice_vsi *vsi = np->vsi;
1353 struct ice_pf *pf = vsi->back;
1354 struct ice_ring *ring;
1355 unsigned int j;
1356 int i = 0;
1357 char *p;
1358
1359 ice_update_pf_stats(pf);
1360 ice_update_vsi_stats(vsi);
1361
1362 for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
1363 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
1364 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
1365 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1366 }
1367
1368 /* populate per queue stats */
1369 rcu_read_lock();
1370
1371 ice_for_each_alloc_txq(vsi, j) {
1372 ring = READ_ONCE(vsi->tx_rings[j]);
1373 if (ring) {
1374 data[i++] = ring->stats.pkts;
1375 data[i++] = ring->stats.bytes;
1376 } else {
1377 data[i++] = 0;
1378 data[i++] = 0;
1379 }
1380 }
1381
1382 ice_for_each_alloc_rxq(vsi, j) {
1383 ring = READ_ONCE(vsi->rx_rings[j]);
1384 if (ring) {
1385 data[i++] = ring->stats.pkts;
1386 data[i++] = ring->stats.bytes;
1387 } else {
1388 data[i++] = 0;
1389 data[i++] = 0;
1390 }
1391 }
1392
1393 rcu_read_unlock();
1394
1395 if (vsi->type != ICE_VSI_PF)
1396 return;
1397
1398 for (j = 0; j < ICE_PF_STATS_LEN; j++) {
1399 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
1400 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
1401 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1402 }
1403
1404 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1405 data[i++] = pf->stats.priority_xon_tx[j];
1406 data[i++] = pf->stats.priority_xoff_tx[j];
1407 }
1408
1409 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1410 data[i++] = pf->stats.priority_xon_rx[j];
1411 data[i++] = pf->stats.priority_xoff_rx[j];
1412 }
1413 }
1414
1415 /**
1416 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
1417 * @netdev: network interface device structure
1418 * @ks: ethtool link ksettings struct to fill out
1419 */
1420 static void
1421 ice_phy_type_to_ethtool(struct net_device *netdev,
1422 struct ethtool_link_ksettings *ks)
1423 {
1424 struct ice_netdev_priv *np = netdev_priv(netdev);
1425 struct ice_link_status *hw_link_info;
1426 bool need_add_adv_mode = false;
1427 struct ice_vsi *vsi = np->vsi;
1428 u64 phy_types_high;
1429 u64 phy_types_low;
1430
1431 hw_link_info = &vsi->port_info->phy.link_info;
1432 phy_types_low = vsi->port_info->phy.phy_type_low;
1433 phy_types_high = vsi->port_info->phy.phy_type_high;
1434
1435 ethtool_link_ksettings_zero_link_mode(ks, supported);
1436 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1437
1438 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
1439 phy_types_low & ICE_PHY_TYPE_LOW_100M_SGMII) {
1440 ethtool_link_ksettings_add_link_mode(ks, supported,
1441 100baseT_Full);
1442 if (!hw_link_info->req_speeds ||
1443 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100MB)
1444 ethtool_link_ksettings_add_link_mode(ks, advertising,
1445 100baseT_Full);
1446 }
1447 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
1448 phy_types_low & ICE_PHY_TYPE_LOW_1G_SGMII) {
1449 ethtool_link_ksettings_add_link_mode(ks, supported,
1450 1000baseT_Full);
1451 if (!hw_link_info->req_speeds ||
1452 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1453 ethtool_link_ksettings_add_link_mode(ks, advertising,
1454 1000baseT_Full);
1455 }
1456 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX) {
1457 ethtool_link_ksettings_add_link_mode(ks, supported,
1458 1000baseKX_Full);
1459 if (!hw_link_info->req_speeds ||
1460 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1461 ethtool_link_ksettings_add_link_mode(ks, advertising,
1462 1000baseKX_Full);
1463 }
1464 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_SX ||
1465 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_LX) {
1466 ethtool_link_ksettings_add_link_mode(ks, supported,
1467 1000baseX_Full);
1468 if (!hw_link_info->req_speeds ||
1469 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
1470 ethtool_link_ksettings_add_link_mode(ks, advertising,
1471 1000baseX_Full);
1472 }
1473 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T) {
1474 ethtool_link_ksettings_add_link_mode(ks, supported,
1475 2500baseT_Full);
1476 if (!hw_link_info->req_speeds ||
1477 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
1478 ethtool_link_ksettings_add_link_mode(ks, advertising,
1479 2500baseT_Full);
1480 }
1481 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_X ||
1482 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX) {
1483 ethtool_link_ksettings_add_link_mode(ks, supported,
1484 2500baseX_Full);
1485 if (!hw_link_info->req_speeds ||
1486 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
1487 ethtool_link_ksettings_add_link_mode(ks, advertising,
1488 2500baseX_Full);
1489 }
1490 if (phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
1491 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR) {
1492 ethtool_link_ksettings_add_link_mode(ks, supported,
1493 5000baseT_Full);
1494 if (!hw_link_info->req_speeds ||
1495 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_5GB)
1496 ethtool_link_ksettings_add_link_mode(ks, advertising,
1497 5000baseT_Full);
1498 }
1499 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
1500 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_DA ||
1501 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC ||
1502 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_C2C) {
1503 ethtool_link_ksettings_add_link_mode(ks, supported,
1504 10000baseT_Full);
1505 if (!hw_link_info->req_speeds ||
1506 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1507 ethtool_link_ksettings_add_link_mode(ks, advertising,
1508 10000baseT_Full);
1509 }
1510 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1) {
1511 ethtool_link_ksettings_add_link_mode(ks, supported,
1512 10000baseKR_Full);
1513 if (!hw_link_info->req_speeds ||
1514 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1515 ethtool_link_ksettings_add_link_mode(ks, advertising,
1516 10000baseKR_Full);
1517 }
1518 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_SR) {
1519 ethtool_link_ksettings_add_link_mode(ks, supported,
1520 10000baseSR_Full);
1521 if (!hw_link_info->req_speeds ||
1522 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1523 ethtool_link_ksettings_add_link_mode(ks, advertising,
1524 10000baseSR_Full);
1525 }
1526 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_LR) {
1527 ethtool_link_ksettings_add_link_mode(ks, supported,
1528 10000baseLR_Full);
1529 if (!hw_link_info->req_speeds ||
1530 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
1531 ethtool_link_ksettings_add_link_mode(ks, advertising,
1532 10000baseLR_Full);
1533 }
1534 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
1535 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
1536 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
1537 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
1538 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC ||
1539 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_C2C) {
1540 ethtool_link_ksettings_add_link_mode(ks, supported,
1541 25000baseCR_Full);
1542 if (!hw_link_info->req_speeds ||
1543 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1544 ethtool_link_ksettings_add_link_mode(ks, advertising,
1545 25000baseCR_Full);
1546 }
1547 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_SR ||
1548 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_LR) {
1549 ethtool_link_ksettings_add_link_mode(ks, supported,
1550 25000baseSR_Full);
1551 if (!hw_link_info->req_speeds ||
1552 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1553 ethtool_link_ksettings_add_link_mode(ks, advertising,
1554 25000baseSR_Full);
1555 }
1556 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
1557 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
1558 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1) {
1559 ethtool_link_ksettings_add_link_mode(ks, supported,
1560 25000baseKR_Full);
1561 if (!hw_link_info->req_speeds ||
1562 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
1563 ethtool_link_ksettings_add_link_mode(ks, advertising,
1564 25000baseKR_Full);
1565 }
1566 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
1567 ethtool_link_ksettings_add_link_mode(ks, supported,
1568 40000baseKR4_Full);
1569 if (!hw_link_info->req_speeds ||
1570 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1571 ethtool_link_ksettings_add_link_mode(ks, advertising,
1572 40000baseKR4_Full);
1573 }
1574 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
1575 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC ||
1576 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI) {
1577 ethtool_link_ksettings_add_link_mode(ks, supported,
1578 40000baseCR4_Full);
1579 if (!hw_link_info->req_speeds ||
1580 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1581 ethtool_link_ksettings_add_link_mode(ks, advertising,
1582 40000baseCR4_Full);
1583 }
1584 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_SR4) {
1585 ethtool_link_ksettings_add_link_mode(ks, supported,
1586 40000baseSR4_Full);
1587 if (!hw_link_info->req_speeds ||
1588 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1589 ethtool_link_ksettings_add_link_mode(ks, advertising,
1590 40000baseSR4_Full);
1591 }
1592 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_LR4) {
1593 ethtool_link_ksettings_add_link_mode(ks, supported,
1594 40000baseLR4_Full);
1595 if (!hw_link_info->req_speeds ||
1596 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
1597 ethtool_link_ksettings_add_link_mode(ks, advertising,
1598 40000baseLR4_Full);
1599 }
1600 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 ||
1601 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC ||
1602 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2 ||
1603 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC ||
1604 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2 ||
1605 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP ||
1606 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR ||
1607 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC ||
1608 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1) {
1609 ethtool_link_ksettings_add_link_mode(ks, supported,
1610 50000baseCR2_Full);
1611 if (!hw_link_info->req_speeds ||
1612 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1613 ethtool_link_ksettings_add_link_mode(ks, advertising,
1614 50000baseCR2_Full);
1615 }
1616 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 ||
1617 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) {
1618 ethtool_link_ksettings_add_link_mode(ks, supported,
1619 50000baseKR2_Full);
1620 if (!hw_link_info->req_speeds ||
1621 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1622 ethtool_link_ksettings_add_link_mode(ks, advertising,
1623 50000baseKR2_Full);
1624 }
1625 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR2 ||
1626 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR2 ||
1627 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_FR ||
1628 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR) {
1629 ethtool_link_ksettings_add_link_mode(ks, supported,
1630 50000baseSR2_Full);
1631 if (!hw_link_info->req_speeds ||
1632 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB)
1633 ethtool_link_ksettings_add_link_mode(ks, advertising,
1634 50000baseSR2_Full);
1635 }
1636 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 ||
1637 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC ||
1638 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4 ||
1639 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC ||
1640 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4 ||
1641 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 ||
1642 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2 ||
1643 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC ||
1644 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2 ||
1645 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC ||
1646 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2) {
1647 ethtool_link_ksettings_add_link_mode(ks, supported,
1648 100000baseCR4_Full);
1649 if (!hw_link_info->req_speeds ||
1650 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1651 need_add_adv_mode = true;
1652 }
1653 if (need_add_adv_mode) {
1654 need_add_adv_mode = false;
1655 ethtool_link_ksettings_add_link_mode(ks, advertising,
1656 100000baseCR4_Full);
1657 }
1658 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR4 ||
1659 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR2) {
1660 ethtool_link_ksettings_add_link_mode(ks, supported,
1661 100000baseSR4_Full);
1662 if (!hw_link_info->req_speeds ||
1663 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1664 need_add_adv_mode = true;
1665 }
1666 if (need_add_adv_mode) {
1667 need_add_adv_mode = false;
1668 ethtool_link_ksettings_add_link_mode(ks, advertising,
1669 100000baseSR4_Full);
1670 }
1671 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_LR4 ||
1672 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_DR) {
1673 ethtool_link_ksettings_add_link_mode(ks, supported,
1674 100000baseLR4_ER4_Full);
1675 if (!hw_link_info->req_speeds ||
1676 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1677 need_add_adv_mode = true;
1678 }
1679 if (need_add_adv_mode) {
1680 need_add_adv_mode = false;
1681 ethtool_link_ksettings_add_link_mode(ks, advertising,
1682 100000baseLR4_ER4_Full);
1683 }
1684 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 ||
1685 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 ||
1686 phy_types_high & ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4) {
1687 ethtool_link_ksettings_add_link_mode(ks, supported,
1688 100000baseKR4_Full);
1689 if (!hw_link_info->req_speeds ||
1690 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB)
1691 need_add_adv_mode = true;
1692 }
1693 if (need_add_adv_mode)
1694 ethtool_link_ksettings_add_link_mode(ks, advertising,
1695 100000baseKR4_Full);
1696
1697 /* Autoneg PHY types */
1698 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
1699 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
1700 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX ||
1701 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T ||
1702 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX ||
1703 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
1704 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR ||
1705 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
1706 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 ||
1707 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
1708 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
1709 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
1710 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
1711 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
1712 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
1713 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 ||
1714 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
1715 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
1716 ethtool_link_ksettings_add_link_mode(ks, supported,
1717 Autoneg);
1718 ethtool_link_ksettings_add_link_mode(ks, advertising,
1719 Autoneg);
1720 }
1721 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 ||
1722 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 ||
1723 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP ||
1724 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) {
1725 ethtool_link_ksettings_add_link_mode(ks, supported,
1726 Autoneg);
1727 ethtool_link_ksettings_add_link_mode(ks, advertising,
1728 Autoneg);
1729 }
1730 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 ||
1731 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 ||
1732 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 ||
1733 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2) {
1734 ethtool_link_ksettings_add_link_mode(ks, supported,
1735 Autoneg);
1736 ethtool_link_ksettings_add_link_mode(ks, advertising,
1737 Autoneg);
1738 }
1739 }
1740
1741 #define TEST_SET_BITS_TIMEOUT 50
1742 #define TEST_SET_BITS_SLEEP_MAX 2000
1743 #define TEST_SET_BITS_SLEEP_MIN 1000
1744
1745 /**
1746 * ice_get_settings_link_up - Get Link settings for when link is up
1747 * @ks: ethtool ksettings to fill in
1748 * @netdev: network interface device structure
1749 */
1750 static void
1751 ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
1752 struct net_device *netdev)
1753 {
1754 struct ice_netdev_priv *np = netdev_priv(netdev);
1755 struct ice_port_info *pi = np->vsi->port_info;
1756 struct ice_link_status *link_info;
1757 struct ice_vsi *vsi = np->vsi;
1758
1759 link_info = &vsi->port_info->phy.link_info;
1760
1761 /* Get supported and advertised settings from PHY ability with media */
1762 ice_phy_type_to_ethtool(netdev, ks);
1763
1764 switch (link_info->link_speed) {
1765 case ICE_AQ_LINK_SPEED_100GB:
1766 ks->base.speed = SPEED_100000;
1767 break;
1768 case ICE_AQ_LINK_SPEED_50GB:
1769 ks->base.speed = SPEED_50000;
1770 break;
1771 case ICE_AQ_LINK_SPEED_40GB:
1772 ks->base.speed = SPEED_40000;
1773 break;
1774 case ICE_AQ_LINK_SPEED_25GB:
1775 ks->base.speed = SPEED_25000;
1776 break;
1777 case ICE_AQ_LINK_SPEED_20GB:
1778 ks->base.speed = SPEED_20000;
1779 break;
1780 case ICE_AQ_LINK_SPEED_10GB:
1781 ks->base.speed = SPEED_10000;
1782 break;
1783 case ICE_AQ_LINK_SPEED_5GB:
1784 ks->base.speed = SPEED_5000;
1785 break;
1786 case ICE_AQ_LINK_SPEED_2500MB:
1787 ks->base.speed = SPEED_2500;
1788 break;
1789 case ICE_AQ_LINK_SPEED_1000MB:
1790 ks->base.speed = SPEED_1000;
1791 break;
1792 case ICE_AQ_LINK_SPEED_100MB:
1793 ks->base.speed = SPEED_100;
1794 break;
1795 default:
1796 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n",
1797 link_info->link_speed);
1798 break;
1799 }
1800 ks->base.duplex = DUPLEX_FULL;
1801
1802 if (link_info->an_info & ICE_AQ_AN_COMPLETED)
1803 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1804 Autoneg);
1805
1806 /* Set flow control negotiated Rx/Tx pause */
1807 switch (pi->fc.current_mode) {
1808 case ICE_FC_FULL:
1809 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1810 break;
1811 case ICE_FC_TX_PAUSE:
1812 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1813 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1814 Asym_Pause);
1815 break;
1816 case ICE_FC_RX_PAUSE:
1817 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1818 Asym_Pause);
1819 break;
1820 case ICE_FC_PFC:
1821 default:
1822 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause);
1823 ethtool_link_ksettings_del_link_mode(ks, lp_advertising,
1824 Asym_Pause);
1825 break;
1826 }
1827 }
1828
1829 /**
1830 * ice_get_settings_link_down - Get the Link settings when link is down
1831 * @ks: ethtool ksettings to fill in
1832 * @netdev: network interface device structure
1833 *
1834 * Reports link settings that can be determined when link is down
1835 */
1836 static void
1837 ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
1838 struct net_device *netdev)
1839 {
1840 /* link is down and the driver needs to fall back on
1841 * supported PHY types to figure out what info to display
1842 */
1843 ice_phy_type_to_ethtool(netdev, ks);
1844
1845 /* With no link, speed and duplex are unknown */
1846 ks->base.speed = SPEED_UNKNOWN;
1847 ks->base.duplex = DUPLEX_UNKNOWN;
1848 }
1849
1850 /**
1851 * ice_get_link_ksettings - Get Link Speed and Duplex settings
1852 * @netdev: network interface device structure
1853 * @ks: ethtool ksettings
1854 *
1855 * Reports speed/duplex settings based on media_type
1856 */
1857 static int
1858 ice_get_link_ksettings(struct net_device *netdev,
1859 struct ethtool_link_ksettings *ks)
1860 {
1861 struct ice_netdev_priv *np = netdev_priv(netdev);
1862 struct ice_aqc_get_phy_caps_data *caps;
1863 struct ice_link_status *hw_link_info;
1864 struct ice_vsi *vsi = np->vsi;
1865 enum ice_status status;
1866 int err = 0;
1867
1868 ethtool_link_ksettings_zero_link_mode(ks, supported);
1869 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1870 ethtool_link_ksettings_zero_link_mode(ks, lp_advertising);
1871 hw_link_info = &vsi->port_info->phy.link_info;
1872
1873 /* set speed and duplex */
1874 if (hw_link_info->link_info & ICE_AQ_LINK_UP)
1875 ice_get_settings_link_up(ks, netdev);
1876 else
1877 ice_get_settings_link_down(ks, netdev);
1878
1879 /* set autoneg settings */
1880 ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
1881 AUTONEG_ENABLE : AUTONEG_DISABLE;
1882
1883 /* set media type settings */
1884 switch (vsi->port_info->phy.media_type) {
1885 case ICE_MEDIA_FIBER:
1886 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1887 ks->base.port = PORT_FIBRE;
1888 break;
1889 case ICE_MEDIA_BASET:
1890 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1891 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1892 ks->base.port = PORT_TP;
1893 break;
1894 case ICE_MEDIA_BACKPLANE:
1895 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
1896 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1897 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
1898 ethtool_link_ksettings_add_link_mode(ks, advertising,
1899 Backplane);
1900 ks->base.port = PORT_NONE;
1901 break;
1902 case ICE_MEDIA_DA:
1903 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1904 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1905 ks->base.port = PORT_DA;
1906 break;
1907 default:
1908 ks->base.port = PORT_OTHER;
1909 break;
1910 }
1911
1912 /* flow control is symmetric and always supported */
1913 ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1914
1915 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
1916 if (!caps)
1917 return -ENOMEM;
1918
1919 status = ice_aq_get_phy_caps(vsi->port_info, false,
1920 ICE_AQC_REPORT_SW_CFG, caps, NULL);
1921 if (status) {
1922 err = -EIO;
1923 goto done;
1924 }
1925
1926 /* Set the advertised flow control based on the PHY capability */
1927 if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) &&
1928 (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) {
1929 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1930 ethtool_link_ksettings_add_link_mode(ks, advertising,
1931 Asym_Pause);
1932 } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) {
1933 ethtool_link_ksettings_add_link_mode(ks, advertising,
1934 Asym_Pause);
1935 } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) {
1936 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
1937 ethtool_link_ksettings_add_link_mode(ks, advertising,
1938 Asym_Pause);
1939 } else {
1940 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
1941 ethtool_link_ksettings_del_link_mode(ks, advertising,
1942 Asym_Pause);
1943 }
1944
1945 /* Set advertised FEC modes based on PHY capability */
1946 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE);
1947
1948 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1949 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1950 ethtool_link_ksettings_add_link_mode(ks, advertising,
1951 FEC_BASER);
1952 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1953 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
1954 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
1955
1956 status = ice_aq_get_phy_caps(vsi->port_info, false,
1957 ICE_AQC_REPORT_TOPO_CAP, caps, NULL);
1958 if (status) {
1959 err = -EIO;
1960 goto done;
1961 }
1962
1963 /* Set supported FEC modes based on PHY capability */
1964 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
1965
1966 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
1967 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN)
1968 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
1969 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
1970 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
1971
1972 done:
1973 kfree(caps);
1974 return err;
1975 }
1976
1977 /**
1978 * ice_ksettings_find_adv_link_speed - Find advertising link speed
1979 * @ks: ethtool ksettings
1980 */
1981 static u16
1982 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
1983 {
1984 u16 adv_link_speed = 0;
1985
1986 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1987 100baseT_Full))
1988 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
1989 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1990 1000baseX_Full))
1991 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
1992 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1993 1000baseT_Full) ||
1994 ethtool_link_ksettings_test_link_mode(ks, advertising,
1995 1000baseKX_Full))
1996 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
1997 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
1998 2500baseT_Full))
1999 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2000 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2001 2500baseX_Full))
2002 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2003 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2004 5000baseT_Full))
2005 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
2006 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2007 10000baseT_Full) ||
2008 ethtool_link_ksettings_test_link_mode(ks, advertising,
2009 10000baseKR_Full))
2010 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2011 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2012 10000baseSR_Full) ||
2013 ethtool_link_ksettings_test_link_mode(ks, advertising,
2014 10000baseLR_Full))
2015 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2016 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2017 25000baseCR_Full) ||
2018 ethtool_link_ksettings_test_link_mode(ks, advertising,
2019 25000baseSR_Full) ||
2020 ethtool_link_ksettings_test_link_mode(ks, advertising,
2021 25000baseKR_Full))
2022 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
2023 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2024 40000baseCR4_Full) ||
2025 ethtool_link_ksettings_test_link_mode(ks, advertising,
2026 40000baseSR4_Full) ||
2027 ethtool_link_ksettings_test_link_mode(ks, advertising,
2028 40000baseLR4_Full) ||
2029 ethtool_link_ksettings_test_link_mode(ks, advertising,
2030 40000baseKR4_Full))
2031 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
2032 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2033 50000baseCR2_Full) ||
2034 ethtool_link_ksettings_test_link_mode(ks, advertising,
2035 50000baseKR2_Full))
2036 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2037 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2038 50000baseSR2_Full))
2039 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2040 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2041 100000baseCR4_Full) ||
2042 ethtool_link_ksettings_test_link_mode(ks, advertising,
2043 100000baseSR4_Full) ||
2044 ethtool_link_ksettings_test_link_mode(ks, advertising,
2045 100000baseLR4_ER4_Full) ||
2046 ethtool_link_ksettings_test_link_mode(ks, advertising,
2047 100000baseKR4_Full))
2048 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;
2049
2050 return adv_link_speed;
2051 }
2052
2053 /**
2054 * ice_setup_autoneg
2055 * @p: port info
2056 * @ks: ethtool_link_ksettings
2057 * @config: configuration that will be sent down to FW
2058 * @autoneg_enabled: autonegotiation is enabled or not
2059 * @autoneg_changed: will there a change in autonegotiation
2060 * @netdev: network interface device structure
2061 *
2062 * Setup PHY autonegotiation feature
2063 */
2064 static int
2065 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
2066 struct ice_aqc_set_phy_cfg_data *config,
2067 u8 autoneg_enabled, u8 *autoneg_changed,
2068 struct net_device *netdev)
2069 {
2070 int err = 0;
2071
2072 *autoneg_changed = 0;
2073
2074 /* Check autoneg */
2075 if (autoneg_enabled == AUTONEG_ENABLE) {
2076 /* If autoneg was not already enabled */
2077 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
2078 /* If autoneg is not supported, return error */
2079 if (!ethtool_link_ksettings_test_link_mode(ks,
2080 supported,
2081 Autoneg)) {
2082 netdev_info(netdev, "Autoneg not supported on this phy.\n");
2083 err = -EINVAL;
2084 } else {
2085 /* Autoneg is allowed to change */
2086 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2087 *autoneg_changed = 1;
2088 }
2089 }
2090 } else {
2091 /* If autoneg is currently enabled */
2092 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
2093 /* If autoneg is supported 10GBASE_T is the only PHY
2094 * that can disable it, so otherwise return error
2095 */
2096 if (ethtool_link_ksettings_test_link_mode(ks,
2097 supported,
2098 Autoneg)) {
2099 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
2100 err = -EINVAL;
2101 } else {
2102 /* Autoneg is allowed to change */
2103 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2104 *autoneg_changed = 1;
2105 }
2106 }
2107 }
2108
2109 return err;
2110 }
2111
2112 /**
2113 * ice_set_link_ksettings - Set Speed and Duplex
2114 * @netdev: network interface device structure
2115 * @ks: ethtool ksettings
2116 *
2117 * Set speed/duplex per media_types advertised/forced
2118 */
2119 static int
2120 ice_set_link_ksettings(struct net_device *netdev,
2121 const struct ethtool_link_ksettings *ks)
2122 {
2123 u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT, lport = 0;
2124 struct ice_netdev_priv *np = netdev_priv(netdev);
2125 struct ethtool_link_ksettings safe_ks, copy_ks;
2126 struct ice_aqc_get_phy_caps_data *abilities;
2127 u16 adv_link_speed, curr_link_speed, idx;
2128 struct ice_aqc_set_phy_cfg_data config;
2129 struct ice_pf *pf = np->vsi->back;
2130 struct ice_port_info *p;
2131 u8 autoneg_changed = 0;
2132 enum ice_status status;
2133 u64 phy_type_high;
2134 u64 phy_type_low;
2135 int err = 0;
2136 bool linkup;
2137
2138 p = np->vsi->port_info;
2139
2140 if (!p)
2141 return -EOPNOTSUPP;
2142
2143 /* Check if this is LAN VSI */
2144 ice_for_each_vsi(pf, idx)
2145 if (pf->vsi[idx]->type == ICE_VSI_PF) {
2146 if (np->vsi != pf->vsi[idx])
2147 return -EOPNOTSUPP;
2148 break;
2149 }
2150
2151 if (p->phy.media_type != ICE_MEDIA_BASET &&
2152 p->phy.media_type != ICE_MEDIA_FIBER &&
2153 p->phy.media_type != ICE_MEDIA_BACKPLANE &&
2154 p->phy.media_type != ICE_MEDIA_DA &&
2155 p->phy.link_info.link_info & ICE_AQ_LINK_UP)
2156 return -EOPNOTSUPP;
2157
2158 /* copy the ksettings to copy_ks to avoid modifying the original */
2159 memcpy(&copy_ks, ks, sizeof(copy_ks));
2160
2161 /* save autoneg out of ksettings */
2162 autoneg = copy_ks.base.autoneg;
2163
2164 memset(&safe_ks, 0, sizeof(safe_ks));
2165
2166 /* Get link modes supported by hardware.*/
2167 ice_phy_type_to_ethtool(netdev, &safe_ks);
2168
2169 /* and check against modes requested by user.
2170 * Return an error if unsupported mode was set.
2171 */
2172 if (!bitmap_subset(copy_ks.link_modes.advertising,
2173 safe_ks.link_modes.supported,
2174 __ETHTOOL_LINK_MODE_MASK_NBITS))
2175 return -EINVAL;
2176
2177 /* get our own copy of the bits to check against */
2178 memset(&safe_ks, 0, sizeof(safe_ks));
2179 safe_ks.base.cmd = copy_ks.base.cmd;
2180 safe_ks.base.link_mode_masks_nwords =
2181 copy_ks.base.link_mode_masks_nwords;
2182 ice_get_link_ksettings(netdev, &safe_ks);
2183
2184 /* set autoneg back to what it currently is */
2185 copy_ks.base.autoneg = safe_ks.base.autoneg;
2186 /* we don't compare the speed */
2187 copy_ks.base.speed = safe_ks.base.speed;
2188
2189 /* If copy_ks.base and safe_ks.base are not the same now, then they are
2190 * trying to set something that we do not support.
2191 */
2192 if (memcmp(&copy_ks.base, &safe_ks.base, sizeof(copy_ks.base)))
2193 return -EOPNOTSUPP;
2194
2195 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2196 timeout--;
2197 if (!timeout)
2198 return -EBUSY;
2199 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
2200 }
2201
2202 abilities = kzalloc(sizeof(*abilities), GFP_KERNEL);
2203 if (!abilities)
2204 return -ENOMEM;
2205
2206 /* Get the current PHY config */
2207 status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_SW_CFG, abilities,
2208 NULL);
2209 if (status) {
2210 err = -EAGAIN;
2211 goto done;
2212 }
2213
2214 /* Copy abilities to config in case autoneg is not set below */
2215 memset(&config, 0, sizeof(config));
2216 config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE;
2217 if (abilities->caps & ICE_AQC_PHY_AN_MODE)
2218 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2219
2220 /* Check autoneg */
2221 err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed,
2222 netdev);
2223
2224 if (err)
2225 goto done;
2226
2227 /* Call to get the current link speed */
2228 p->phy.get_link_info = true;
2229 status = ice_get_link_status(p, &linkup);
2230 if (status) {
2231 err = -EAGAIN;
2232 goto done;
2233 }
2234
2235 curr_link_speed = p->phy.link_info.link_speed;
2236 adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
2237
2238 /* If speed didn't get set, set it to what it currently is.
2239 * This is needed because if advertise is 0 (as it is when autoneg
2240 * is disabled) then speed won't get set.
2241 */
2242 if (!adv_link_speed)
2243 adv_link_speed = curr_link_speed;
2244
2245 /* Convert the advertise link speeds to their corresponded PHY_TYPE */
2246 ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed);
2247
2248 if (!autoneg_changed && adv_link_speed == curr_link_speed) {
2249 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
2250 goto done;
2251 }
2252
2253 /* copy over the rest of the abilities */
2254 config.low_power_ctrl = abilities->low_power_ctrl;
2255 config.eee_cap = abilities->eee_cap;
2256 config.eeer_value = abilities->eeer_value;
2257 config.link_fec_opt = abilities->link_fec_options;
2258
2259 /* save the requested speeds */
2260 p->phy.link_info.req_speeds = adv_link_speed;
2261
2262 /* set link and auto negotiation so changes take effect */
2263 config.caps |= ICE_AQ_PHY_ENA_LINK;
2264
2265 if (phy_type_low || phy_type_high) {
2266 config.phy_type_high = cpu_to_le64(phy_type_high) &
2267 abilities->phy_type_high;
2268 config.phy_type_low = cpu_to_le64(phy_type_low) &
2269 abilities->phy_type_low;
2270 } else {
2271 err = -EAGAIN;
2272 netdev_info(netdev, "Nothing changed. No PHY_TYPE is corresponded to advertised link speed.\n");
2273 goto done;
2274 }
2275
2276 /* If link is up put link down */
2277 if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) {
2278 /* Tell the OS link is going down, the link will go
2279 * back up when fw says it is ready asynchronously
2280 */
2281 ice_print_link_msg(np->vsi, false);
2282 netif_carrier_off(netdev);
2283 netif_tx_stop_all_queues(netdev);
2284 }
2285
2286 /* make the aq call */
2287 status = ice_aq_set_phy_cfg(&pf->hw, lport, &config, NULL);
2288 if (status) {
2289 netdev_info(netdev, "Set phy config failed,\n");
2290 err = -EAGAIN;
2291 }
2292
2293 done:
2294 kfree(abilities);
2295 clear_bit(__ICE_CFG_BUSY, pf->state);
2296
2297 return err;
2298 }
2299
2300 /**
2301 * ice_parse_hdrs - parses headers from RSS hash input
2302 * @nfc: ethtool rxnfc command
2303 *
2304 * This function parses the rxnfc command and returns intended
2305 * header types for RSS configuration
2306 */
2307 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc)
2308 {
2309 u32 hdrs = ICE_FLOW_SEG_HDR_NONE;
2310
2311 switch (nfc->flow_type) {
2312 case TCP_V4_FLOW:
2313 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4;
2314 break;
2315 case UDP_V4_FLOW:
2316 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4;
2317 break;
2318 case SCTP_V4_FLOW:
2319 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4;
2320 break;
2321 case TCP_V6_FLOW:
2322 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6;
2323 break;
2324 case UDP_V6_FLOW:
2325 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6;
2326 break;
2327 case SCTP_V6_FLOW:
2328 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6;
2329 break;
2330 default:
2331 break;
2332 }
2333 return hdrs;
2334 }
2335
2336 #define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)
2337 #define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)
2338 #define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)
2339 #define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)
2340 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)
2341 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)
2342 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)
2343 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)
2344 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \
2345 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)
2346 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \
2347 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)
2348
2349 /**
2350 * ice_parse_hash_flds - parses hash fields from RSS hash input
2351 * @nfc: ethtool rxnfc command
2352 *
2353 * This function parses the rxnfc command and returns intended
2354 * hash fields for RSS configuration
2355 */
2356 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc)
2357 {
2358 u64 hfld = ICE_HASH_INVALID;
2359
2360 if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) {
2361 switch (nfc->flow_type) {
2362 case TCP_V4_FLOW:
2363 case UDP_V4_FLOW:
2364 case SCTP_V4_FLOW:
2365 if (nfc->data & RXH_IP_SRC)
2366 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA;
2367 if (nfc->data & RXH_IP_DST)
2368 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA;
2369 break;
2370 case TCP_V6_FLOW:
2371 case UDP_V6_FLOW:
2372 case SCTP_V6_FLOW:
2373 if (nfc->data & RXH_IP_SRC)
2374 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA;
2375 if (nfc->data & RXH_IP_DST)
2376 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA;
2377 break;
2378 default:
2379 break;
2380 }
2381 }
2382
2383 if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) {
2384 switch (nfc->flow_type) {
2385 case TCP_V4_FLOW:
2386 case TCP_V6_FLOW:
2387 if (nfc->data & RXH_L4_B_0_1)
2388 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT;
2389 if (nfc->data & RXH_L4_B_2_3)
2390 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT;
2391 break;
2392 case UDP_V4_FLOW:
2393 case UDP_V6_FLOW:
2394 if (nfc->data & RXH_L4_B_0_1)
2395 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT;
2396 if (nfc->data & RXH_L4_B_2_3)
2397 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT;
2398 break;
2399 case SCTP_V4_FLOW:
2400 case SCTP_V6_FLOW:
2401 if (nfc->data & RXH_L4_B_0_1)
2402 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT;
2403 if (nfc->data & RXH_L4_B_2_3)
2404 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT;
2405 break;
2406 default:
2407 break;
2408 }
2409 }
2410
2411 return hfld;
2412 }
2413
2414 /**
2415 * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2416 * @vsi: the VSI being configured
2417 * @nfc: ethtool rxnfc command
2418 *
2419 * Returns Success if the flow input set is supported.
2420 */
2421 static int
2422 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2423 {
2424 struct ice_pf *pf = vsi->back;
2425 enum ice_status status;
2426 struct device *dev;
2427 u64 hashed_flds;
2428 u32 hdrs;
2429
2430 dev = ice_pf_to_dev(pf);
2431 if (ice_is_safe_mode(pf)) {
2432 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2433 vsi->vsi_num);
2434 return -EINVAL;
2435 }
2436
2437 hashed_flds = ice_parse_hash_flds(nfc);
2438 if (hashed_flds == ICE_HASH_INVALID) {
2439 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n",
2440 vsi->vsi_num);
2441 return -EINVAL;
2442 }
2443
2444 hdrs = ice_parse_hdrs(nfc);
2445 if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2446 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2447 vsi->vsi_num);
2448 return -EINVAL;
2449 }
2450
2451 status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs);
2452 if (status) {
2453 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n",
2454 vsi->vsi_num, status);
2455 return -EINVAL;
2456 }
2457
2458 return 0;
2459 }
2460
2461 /**
2462 * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type
2463 * @vsi: the VSI being configured
2464 * @nfc: ethtool rxnfc command
2465 */
2466 static void
2467 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2468 {
2469 struct ice_pf *pf = vsi->back;
2470 struct device *dev;
2471 u64 hash_flds;
2472 u32 hdrs;
2473
2474 dev = ice_pf_to_dev(pf);
2475
2476 nfc->data = 0;
2477 if (ice_is_safe_mode(pf)) {
2478 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2479 vsi->vsi_num);
2480 return;
2481 }
2482
2483 hdrs = ice_parse_hdrs(nfc);
2484 if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2485 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2486 vsi->vsi_num);
2487 return;
2488 }
2489
2490 hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs);
2491 if (hash_flds == ICE_HASH_INVALID) {
2492 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n",
2493 vsi->vsi_num);
2494 return;
2495 }
2496
2497 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA ||
2498 hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA)
2499 nfc->data |= (u64)RXH_IP_SRC;
2500
2501 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA ||
2502 hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA)
2503 nfc->data |= (u64)RXH_IP_DST;
2504
2505 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT ||
2506 hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT ||
2507 hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT)
2508 nfc->data |= (u64)RXH_L4_B_0_1;
2509
2510 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT ||
2511 hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT ||
2512 hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT)
2513 nfc->data |= (u64)RXH_L4_B_2_3;
2514 }
2515
2516 /**
2517 * ice_set_rxnfc - command to set Rx flow rules.
2518 * @netdev: network interface device structure
2519 * @cmd: ethtool rxnfc command
2520 *
2521 * Returns 0 for success and negative values for errors
2522 */
2523 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2524 {
2525 struct ice_netdev_priv *np = netdev_priv(netdev);
2526 struct ice_vsi *vsi = np->vsi;
2527
2528 switch (cmd->cmd) {
2529 case ETHTOOL_SRXFH:
2530 return ice_set_rss_hash_opt(vsi, cmd);
2531 default:
2532 break;
2533 }
2534 return -EOPNOTSUPP;
2535 }
2536
2537 /**
2538 * ice_get_rxnfc - command to get Rx flow classification rules
2539 * @netdev: network interface device structure
2540 * @cmd: ethtool rxnfc command
2541 * @rule_locs: buffer to rturn Rx flow classification rules
2542 *
2543 * Returns Success if the command is supported.
2544 */
2545 static int
2546 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2547 u32 __always_unused *rule_locs)
2548 {
2549 struct ice_netdev_priv *np = netdev_priv(netdev);
2550 struct ice_vsi *vsi = np->vsi;
2551 int ret = -EOPNOTSUPP;
2552
2553 switch (cmd->cmd) {
2554 case ETHTOOL_GRXRINGS:
2555 cmd->data = vsi->rss_size;
2556 ret = 0;
2557 break;
2558 case ETHTOOL_GRXFH:
2559 ice_get_rss_hash_opt(vsi, cmd);
2560 ret = 0;
2561 break;
2562 default:
2563 break;
2564 }
2565
2566 return ret;
2567 }
2568
2569 static void
2570 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2571 {
2572 struct ice_netdev_priv *np = netdev_priv(netdev);
2573 struct ice_vsi *vsi = np->vsi;
2574
2575 ring->rx_max_pending = ICE_MAX_NUM_DESC;
2576 ring->tx_max_pending = ICE_MAX_NUM_DESC;
2577 ring->rx_pending = vsi->rx_rings[0]->count;
2578 ring->tx_pending = vsi->tx_rings[0]->count;
2579
2580 /* Rx mini and jumbo rings are not supported */
2581 ring->rx_mini_max_pending = 0;
2582 ring->rx_jumbo_max_pending = 0;
2583 ring->rx_mini_pending = 0;
2584 ring->rx_jumbo_pending = 0;
2585 }
2586
2587 static int
2588 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
2589 {
2590 struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
2591 struct ice_netdev_priv *np = netdev_priv(netdev);
2592 struct ice_ring *xdp_rings = NULL;
2593 struct ice_vsi *vsi = np->vsi;
2594 struct ice_pf *pf = vsi->back;
2595 int i, timeout = 50, err = 0;
2596 u32 new_rx_cnt, new_tx_cnt;
2597
2598 if (ring->tx_pending > ICE_MAX_NUM_DESC ||
2599 ring->tx_pending < ICE_MIN_NUM_DESC ||
2600 ring->rx_pending > ICE_MAX_NUM_DESC ||
2601 ring->rx_pending < ICE_MIN_NUM_DESC) {
2602 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
2603 ring->tx_pending, ring->rx_pending,
2604 ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
2605 ICE_REQ_DESC_MULTIPLE);
2606 return -EINVAL;
2607 }
2608
2609 new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
2610 if (new_tx_cnt != ring->tx_pending)
2611 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n",
2612 new_tx_cnt);
2613 new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
2614 if (new_rx_cnt != ring->rx_pending)
2615 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n",
2616 new_rx_cnt);
2617
2618 /* if nothing to do return success */
2619 if (new_tx_cnt == vsi->tx_rings[0]->count &&
2620 new_rx_cnt == vsi->rx_rings[0]->count) {
2621 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
2622 return 0;
2623 }
2624
2625 /* If there is a AF_XDP UMEM attached to any of Rx rings,
2626 * disallow changing the number of descriptors -- regardless
2627 * if the netdev is running or not.
2628 */
2629 if (ice_xsk_any_rx_ring_ena(vsi))
2630 return -EBUSY;
2631
2632 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
2633 timeout--;
2634 if (!timeout)
2635 return -EBUSY;
2636 usleep_range(1000, 2000);
2637 }
2638
2639 /* set for the next time the netdev is started */
2640 if (!netif_running(vsi->netdev)) {
2641 for (i = 0; i < vsi->alloc_txq; i++)
2642 vsi->tx_rings[i]->count = new_tx_cnt;
2643 for (i = 0; i < vsi->alloc_rxq; i++)
2644 vsi->rx_rings[i]->count = new_rx_cnt;
2645 if (ice_is_xdp_ena_vsi(vsi))
2646 for (i = 0; i < vsi->num_xdp_txq; i++)
2647 vsi->xdp_rings[i]->count = new_tx_cnt;
2648 vsi->num_tx_desc = new_tx_cnt;
2649 vsi->num_rx_desc = new_rx_cnt;
2650 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
2651 goto done;
2652 }
2653
2654 if (new_tx_cnt == vsi->tx_rings[0]->count)
2655 goto process_rx;
2656
2657 /* alloc updated Tx resources */
2658 netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
2659 vsi->tx_rings[0]->count, new_tx_cnt);
2660
2661 tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL);
2662 if (!tx_rings) {
2663 err = -ENOMEM;
2664 goto done;
2665 }
2666
2667 ice_for_each_txq(vsi, i) {
2668 /* clone ring and setup updated count */
2669 tx_rings[i] = *vsi->tx_rings[i];
2670 tx_rings[i].count = new_tx_cnt;
2671 tx_rings[i].desc = NULL;
2672 tx_rings[i].tx_buf = NULL;
2673 err = ice_setup_tx_ring(&tx_rings[i]);
2674 if (err) {
2675 while (i--)
2676 ice_clean_tx_ring(&tx_rings[i]);
2677 kfree(tx_rings);
2678 goto done;
2679 }
2680 }
2681
2682 if (!ice_is_xdp_ena_vsi(vsi))
2683 goto process_rx;
2684
2685 /* alloc updated XDP resources */
2686 netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n",
2687 vsi->xdp_rings[0]->count, new_tx_cnt);
2688
2689 xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL);
2690 if (!xdp_rings) {
2691 err = -ENOMEM;
2692 goto free_tx;
2693 }
2694
2695 for (i = 0; i < vsi->num_xdp_txq; i++) {
2696 /* clone ring and setup updated count */
2697 xdp_rings[i] = *vsi->xdp_rings[i];
2698 xdp_rings[i].count = new_tx_cnt;
2699 xdp_rings[i].desc = NULL;
2700 xdp_rings[i].tx_buf = NULL;
2701 err = ice_setup_tx_ring(&xdp_rings[i]);
2702 if (err) {
2703 while (i--)
2704 ice_clean_tx_ring(&xdp_rings[i]);
2705 kfree(xdp_rings);
2706 goto free_tx;
2707 }
2708 ice_set_ring_xdp(&xdp_rings[i]);
2709 }
2710
2711 process_rx:
2712 if (new_rx_cnt == vsi->rx_rings[0]->count)
2713 goto process_link;
2714
2715 /* alloc updated Rx resources */
2716 netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
2717 vsi->rx_rings[0]->count, new_rx_cnt);
2718
2719 rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL);
2720 if (!rx_rings) {
2721 err = -ENOMEM;
2722 goto done;
2723 }
2724
2725 ice_for_each_rxq(vsi, i) {
2726 /* clone ring and setup updated count */
2727 rx_rings[i] = *vsi->rx_rings[i];
2728 rx_rings[i].count = new_rx_cnt;
2729 rx_rings[i].desc = NULL;
2730 rx_rings[i].rx_buf = NULL;
2731 /* this is to allow wr32 to have something to write to
2732 * during early allocation of Rx buffers
2733 */
2734 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;
2735
2736 err = ice_setup_rx_ring(&rx_rings[i]);
2737 if (err)
2738 goto rx_unwind;
2739
2740 /* allocate Rx buffers */
2741 err = ice_alloc_rx_bufs(&rx_rings[i],
2742 ICE_DESC_UNUSED(&rx_rings[i]));
2743 rx_unwind:
2744 if (err) {
2745 while (i) {
2746 i--;
2747 ice_free_rx_ring(&rx_rings[i]);
2748 }
2749 kfree(rx_rings);
2750 err = -ENOMEM;
2751 goto free_tx;
2752 }
2753 }
2754
2755 process_link:
2756 /* Bring interface down, copy in the new ring info, then restore the
2757 * interface. if VSI is up, bring it down and then back up
2758 */
2759 if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
2760 ice_down(vsi);
2761
2762 if (tx_rings) {
2763 ice_for_each_txq(vsi, i) {
2764 ice_free_tx_ring(vsi->tx_rings[i]);
2765 *vsi->tx_rings[i] = tx_rings[i];
2766 }
2767 kfree(tx_rings);
2768 }
2769
2770 if (rx_rings) {
2771 ice_for_each_rxq(vsi, i) {
2772 ice_free_rx_ring(vsi->rx_rings[i]);
2773 /* copy the real tail offset */
2774 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2775 /* this is to fake out the allocation routine
2776 * into thinking it has to realloc everything
2777 * but the recycling logic will let us re-use
2778 * the buffers allocated above
2779 */
2780 rx_rings[i].next_to_use = 0;
2781 rx_rings[i].next_to_clean = 0;
2782 rx_rings[i].next_to_alloc = 0;
2783 *vsi->rx_rings[i] = rx_rings[i];
2784 }
2785 kfree(rx_rings);
2786 }
2787
2788 if (xdp_rings) {
2789 for (i = 0; i < vsi->num_xdp_txq; i++) {
2790 ice_free_tx_ring(vsi->xdp_rings[i]);
2791 *vsi->xdp_rings[i] = xdp_rings[i];
2792 }
2793 kfree(xdp_rings);
2794 }
2795
2796 vsi->num_tx_desc = new_tx_cnt;
2797 vsi->num_rx_desc = new_rx_cnt;
2798 ice_up(vsi);
2799 }
2800 goto done;
2801
2802 free_tx:
2803 /* error cleanup if the Rx allocations failed after getting Tx */
2804 if (tx_rings) {
2805 ice_for_each_txq(vsi, i)
2806 ice_free_tx_ring(&tx_rings[i]);
2807 kfree(tx_rings);
2808 }
2809
2810 done:
2811 clear_bit(__ICE_CFG_BUSY, pf->state);
2812 return err;
2813 }
2814
2815 /**
2816 * ice_get_pauseparam - Get Flow Control status
2817 * @netdev: network interface device structure
2818 * @pause: ethernet pause (flow control) parameters
2819 *
2820 * Get requested flow control status from PHY capability.
2821 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which
2822 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report
2823 * the negotiated Rx/Tx pause via lp_advertising.
2824 */
2825 static void
2826 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2827 {
2828 struct ice_netdev_priv *np = netdev_priv(netdev);
2829 struct ice_port_info *pi = np->vsi->port_info;
2830 struct ice_aqc_get_phy_caps_data *pcaps;
2831 struct ice_dcbx_cfg *dcbx_cfg;
2832 enum ice_status status;
2833
2834 /* Initialize pause params */
2835 pause->rx_pause = 0;
2836 pause->tx_pause = 0;
2837
2838 dcbx_cfg = &pi->local_dcbx_cfg;
2839
2840 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2841 if (!pcaps)
2842 return;
2843
2844 /* Get current PHY config */
2845 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
2846 NULL);
2847 if (status)
2848 goto out;
2849
2850 pause->autoneg = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
2851 AUTONEG_ENABLE : AUTONEG_DISABLE);
2852
2853 if (dcbx_cfg->pfc.pfcena)
2854 /* PFC enabled so report LFC as off */
2855 goto out;
2856
2857 if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE)
2858 pause->tx_pause = 1;
2859 if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
2860 pause->rx_pause = 1;
2861
2862 out:
2863 kfree(pcaps);
2864 }
2865
2866 /**
2867 * ice_set_pauseparam - Set Flow Control parameter
2868 * @netdev: network interface device structure
2869 * @pause: return Tx/Rx flow control status
2870 */
2871 static int
2872 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2873 {
2874 struct ice_netdev_priv *np = netdev_priv(netdev);
2875 struct ice_aqc_get_phy_caps_data *pcaps;
2876 struct ice_link_status *hw_link_info;
2877 struct ice_pf *pf = np->vsi->back;
2878 struct ice_dcbx_cfg *dcbx_cfg;
2879 struct ice_vsi *vsi = np->vsi;
2880 struct ice_hw *hw = &pf->hw;
2881 struct ice_port_info *pi;
2882 enum ice_status status;
2883 u8 aq_failures;
2884 bool link_up;
2885 int err = 0;
2886 u32 is_an;
2887
2888 pi = vsi->port_info;
2889 hw_link_info = &pi->phy.link_info;
2890 dcbx_cfg = &pi->local_dcbx_cfg;
2891 link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
2892
2893 /* Changing the port's flow control is not supported if this isn't the
2894 * PF VSI
2895 */
2896 if (vsi->type != ICE_VSI_PF) {
2897 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
2898 return -EOPNOTSUPP;
2899 }
2900
2901 /* Get pause param reports configured and negotiated flow control pause
2902 * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is
2903 * defined get pause param pause->autoneg reports SW configured setting,
2904 * so compare pause->autoneg with SW configured to prevent the user from
2905 * using set pause param to chance autoneg.
2906 */
2907 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
2908 if (!pcaps)
2909 return -ENOMEM;
2910
2911 /* Get current PHY config */
2912 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
2913 NULL);
2914 if (status) {
2915 kfree(pcaps);
2916 return -EIO;
2917 }
2918
2919 is_an = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
2920 AUTONEG_ENABLE : AUTONEG_DISABLE);
2921
2922 kfree(pcaps);
2923
2924 if (pause->autoneg != is_an) {
2925 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
2926 return -EOPNOTSUPP;
2927 }
2928
2929 /* If we have link and don't have autoneg */
2930 if (!test_bit(__ICE_DOWN, pf->state) &&
2931 !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
2932 /* Send message that it might not necessarily work*/
2933 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
2934 }
2935
2936 if (dcbx_cfg->pfc.pfcena) {
2937 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
2938 return -EOPNOTSUPP;
2939 }
2940 if (pause->rx_pause && pause->tx_pause)
2941 pi->fc.req_mode = ICE_FC_FULL;
2942 else if (pause->rx_pause && !pause->tx_pause)
2943 pi->fc.req_mode = ICE_FC_RX_PAUSE;
2944 else if (!pause->rx_pause && pause->tx_pause)
2945 pi->fc.req_mode = ICE_FC_TX_PAUSE;
2946 else if (!pause->rx_pause && !pause->tx_pause)
2947 pi->fc.req_mode = ICE_FC_NONE;
2948 else
2949 return -EINVAL;
2950
2951 /* Set the FC mode and only restart AN if link is up */
2952 status = ice_set_fc(pi, &aq_failures, link_up);
2953
2954 if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
2955 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %d\n",
2956 status, hw->adminq.sq_last_status);
2957 err = -EAGAIN;
2958 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
2959 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %d\n",
2960 status, hw->adminq.sq_last_status);
2961 err = -EAGAIN;
2962 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
2963 netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %d\n",
2964 status, hw->adminq.sq_last_status);
2965 err = -EAGAIN;
2966 }
2967
2968 if (!test_bit(__ICE_DOWN, pf->state)) {
2969 /* Give it a little more time to try to come back. If still
2970 * down, restart autoneg link or reinitialize the interface.
2971 */
2972 msleep(75);
2973 if (!test_bit(__ICE_DOWN, pf->state))
2974 return ice_nway_reset(netdev);
2975
2976 ice_down(vsi);
2977 ice_up(vsi);
2978 }
2979
2980 return err;
2981 }
2982
2983 /**
2984 * ice_get_rxfh_key_size - get the RSS hash key size
2985 * @netdev: network interface device structure
2986 *
2987 * Returns the table size.
2988 */
2989 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
2990 {
2991 return ICE_VSIQF_HKEY_ARRAY_SIZE;
2992 }
2993
2994 /**
2995 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size
2996 * @netdev: network interface device structure
2997 *
2998 * Returns the table size.
2999 */
3000 static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
3001 {
3002 struct ice_netdev_priv *np = netdev_priv(netdev);
3003
3004 return np->vsi->rss_table_size;
3005 }
3006
3007 /**
3008 * ice_get_rxfh - get the Rx flow hash indirection table
3009 * @netdev: network interface device structure
3010 * @indir: indirection table
3011 * @key: hash key
3012 * @hfunc: hash function
3013 *
3014 * Reads the indirection table directly from the hardware.
3015 */
3016 static int
3017 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
3018 {
3019 struct ice_netdev_priv *np = netdev_priv(netdev);
3020 struct ice_vsi *vsi = np->vsi;
3021 struct ice_pf *pf = vsi->back;
3022 int ret = 0, i;
3023 u8 *lut;
3024
3025 if (hfunc)
3026 *hfunc = ETH_RSS_HASH_TOP;
3027
3028 if (!indir)
3029 return 0;
3030
3031 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3032 /* RSS not supported return error here */
3033 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3034 return -EIO;
3035 }
3036
3037 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3038 if (!lut)
3039 return -ENOMEM;
3040
3041 if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) {
3042 ret = -EIO;
3043 goto out;
3044 }
3045
3046 for (i = 0; i < vsi->rss_table_size; i++)
3047 indir[i] = (u32)(lut[i]);
3048
3049 out:
3050 kfree(lut);
3051 return ret;
3052 }
3053
3054 /**
3055 * ice_set_rxfh - set the Rx flow hash indirection table
3056 * @netdev: network interface device structure
3057 * @indir: indirection table
3058 * @key: hash key
3059 * @hfunc: hash function
3060 *
3061 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise
3062 * returns 0 after programming the table.
3063 */
3064 static int
3065 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key,
3066 const u8 hfunc)
3067 {
3068 struct ice_netdev_priv *np = netdev_priv(netdev);
3069 struct ice_vsi *vsi = np->vsi;
3070 struct ice_pf *pf = vsi->back;
3071 struct device *dev;
3072 u8 *seed = NULL;
3073
3074 dev = ice_pf_to_dev(pf);
3075 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3076 return -EOPNOTSUPP;
3077
3078 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3079 /* RSS not supported return error here */
3080 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3081 return -EIO;
3082 }
3083
3084 if (key) {
3085 if (!vsi->rss_hkey_user) {
3086 vsi->rss_hkey_user =
3087 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE,
3088 GFP_KERNEL);
3089 if (!vsi->rss_hkey_user)
3090 return -ENOMEM;
3091 }
3092 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
3093 seed = vsi->rss_hkey_user;
3094 }
3095
3096 if (!vsi->rss_lut_user) {
3097 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size,
3098 GFP_KERNEL);
3099 if (!vsi->rss_lut_user)
3100 return -ENOMEM;
3101 }
3102
3103 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
3104 if (indir) {
3105 int i;
3106
3107 for (i = 0; i < vsi->rss_table_size; i++)
3108 vsi->rss_lut_user[i] = (u8)(indir[i]);
3109 } else {
3110 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
3111 vsi->rss_size);
3112 }
3113
3114 if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size))
3115 return -EIO;
3116
3117 return 0;
3118 }
3119
3120 /**
3121 * ice_get_max_txq - return the maximum number of Tx queues for in a PF
3122 * @pf: PF structure
3123 */
3124 static int ice_get_max_txq(struct ice_pf *pf)
3125 {
3126 return min_t(int, num_online_cpus(),
3127 pf->hw.func_caps.common_cap.num_txq);
3128 }
3129
3130 /**
3131 * ice_get_max_rxq - return the maximum number of Rx queues for in a PF
3132 * @pf: PF structure
3133 */
3134 static int ice_get_max_rxq(struct ice_pf *pf)
3135 {
3136 return min_t(int, num_online_cpus(),
3137 pf->hw.func_caps.common_cap.num_rxq);
3138 }
3139
3140 /**
3141 * ice_get_combined_cnt - return the current number of combined channels
3142 * @vsi: PF VSI pointer
3143 *
3144 * Go through all queue vectors and count ones that have both Rx and Tx ring
3145 * attached
3146 */
3147 static u32 ice_get_combined_cnt(struct ice_vsi *vsi)
3148 {
3149 u32 combined = 0;
3150 int q_idx;
3151
3152 ice_for_each_q_vector(vsi, q_idx) {
3153 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
3154
3155 if (q_vector->rx.ring && q_vector->tx.ring)
3156 combined++;
3157 }
3158
3159 return combined;
3160 }
3161
3162 /**
3163 * ice_get_channels - get the current and max supported channels
3164 * @dev: network interface device structure
3165 * @ch: ethtool channel data structure
3166 */
3167 static void
3168 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch)
3169 {
3170 struct ice_netdev_priv *np = netdev_priv(dev);
3171 struct ice_vsi *vsi = np->vsi;
3172 struct ice_pf *pf = vsi->back;
3173
3174 /* check to see if VSI is active */
3175 if (test_bit(__ICE_DOWN, vsi->state))
3176 return;
3177
3178 /* report maximum channels */
3179 ch->max_rx = ice_get_max_rxq(pf);
3180 ch->max_tx = ice_get_max_txq(pf);
3181 ch->max_combined = min_t(int, ch->max_rx, ch->max_tx);
3182
3183 /* report current channels */
3184 ch->combined_count = ice_get_combined_cnt(vsi);
3185 ch->rx_count = vsi->num_rxq - ch->combined_count;
3186 ch->tx_count = vsi->num_txq - ch->combined_count;
3187 }
3188
3189 /**
3190 * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size
3191 * @vsi: VSI to reconfigure RSS LUT on
3192 * @req_rss_size: requested range of queue numbers for hashing
3193 *
3194 * Set the VSI's RSS parameters, configure the RSS LUT based on these.
3195 */
3196 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size)
3197 {
3198 struct ice_pf *pf = vsi->back;
3199 enum ice_status status;
3200 struct device *dev;
3201 struct ice_hw *hw;
3202 int err = 0;
3203 u8 *lut;
3204
3205 dev = ice_pf_to_dev(pf);
3206 hw = &pf->hw;
3207
3208 if (!req_rss_size)
3209 return -EINVAL;
3210
3211 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3212 if (!lut)
3213 return -ENOMEM;
3214
3215 /* set RSS LUT parameters */
3216 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3217 vsi->rss_size = 1;
3218 } else {
3219 struct ice_hw_common_caps *caps = &hw->func_caps.common_cap;
3220
3221 vsi->rss_size = min_t(int, req_rss_size,
3222 BIT(caps->rss_table_entry_width));
3223 }
3224
3225 /* create/set RSS LUT */
3226 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size);
3227 status = ice_aq_set_rss_lut(hw, vsi->idx, vsi->rss_lut_type, lut,
3228 vsi->rss_table_size);
3229 if (status) {
3230 dev_err(dev, "Cannot set RSS lut, err %d aq_err %d\n",
3231 status, hw->adminq.rq_last_status);
3232 err = -EIO;
3233 }
3234
3235 kfree(lut);
3236 return err;
3237 }
3238
3239 /**
3240 * ice_set_channels - set the number channels
3241 * @dev: network interface device structure
3242 * @ch: ethtool channel data structure
3243 */
3244 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch)
3245 {
3246 struct ice_netdev_priv *np = netdev_priv(dev);
3247 struct ice_vsi *vsi = np->vsi;
3248 struct ice_pf *pf = vsi->back;
3249 int new_rx = 0, new_tx = 0;
3250 u32 curr_combined;
3251
3252 /* do not support changing channels in Safe Mode */
3253 if (ice_is_safe_mode(pf)) {
3254 netdev_err(dev, "Changing channel in Safe Mode is not supported\n");
3255 return -EOPNOTSUPP;
3256 }
3257 /* do not support changing other_count */
3258 if (ch->other_count)
3259 return -EINVAL;
3260
3261 curr_combined = ice_get_combined_cnt(vsi);
3262
3263 /* these checks are for cases where user didn't specify a particular
3264 * value on cmd line but we get non-zero value anyway via
3265 * get_channels(); look at ethtool.c in ethtool repository (the user
3266 * space part), particularly, do_schannels() routine
3267 */
3268 if (ch->rx_count == vsi->num_rxq - curr_combined)
3269 ch->rx_count = 0;
3270 if (ch->tx_count == vsi->num_txq - curr_combined)
3271 ch->tx_count = 0;
3272 if (ch->combined_count == curr_combined)
3273 ch->combined_count = 0;
3274
3275 if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) {
3276 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n");
3277 return -EINVAL;
3278 }
3279
3280 new_rx = ch->combined_count + ch->rx_count;
3281 new_tx = ch->combined_count + ch->tx_count;
3282
3283 if (new_rx > ice_get_max_rxq(pf)) {
3284 netdev_err(dev, "Maximum allowed Rx channels is %d\n",
3285 ice_get_max_rxq(pf));
3286 return -EINVAL;
3287 }
3288 if (new_tx > ice_get_max_txq(pf)) {
3289 netdev_err(dev, "Maximum allowed Tx channels is %d\n",
3290 ice_get_max_txq(pf));
3291 return -EINVAL;
3292 }
3293
3294 ice_vsi_recfg_qs(vsi, new_rx, new_tx);
3295
3296 if (new_rx && !netif_is_rxfh_configured(dev))
3297 return ice_vsi_set_dflt_rss_lut(vsi, new_rx);
3298
3299 return 0;
3300 }
3301
3302 enum ice_container_type {
3303 ICE_RX_CONTAINER,
3304 ICE_TX_CONTAINER,
3305 };
3306
3307 /**
3308 * ice_get_rc_coalesce - get ITR values for specific ring container
3309 * @ec: ethtool structure to fill with driver's coalesce settings
3310 * @c_type: container type, Rx or Tx
3311 * @rc: ring container that the ITR values will come from
3312 *
3313 * Query the device for ice_ring_container specific ITR values. This is
3314 * done per ice_ring_container because each q_vector can have 1 or more rings
3315 * and all of said ring(s) will have the same ITR values.
3316 *
3317 * Returns 0 on success, negative otherwise.
3318 */
3319 static int
3320 ice_get_rc_coalesce(struct ethtool_coalesce *ec, enum ice_container_type c_type,
3321 struct ice_ring_container *rc)
3322 {
3323 struct ice_pf *pf;
3324
3325 if (!rc->ring)
3326 return -EINVAL;
3327
3328 pf = rc->ring->vsi->back;
3329
3330 switch (c_type) {
3331 case ICE_RX_CONTAINER:
3332 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3333 ec->rx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3334 ec->rx_coalesce_usecs_high = rc->ring->q_vector->intrl;
3335 break;
3336 case ICE_TX_CONTAINER:
3337 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting);
3338 ec->tx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3339 break;
3340 default:
3341 dev_dbg(ice_pf_to_dev(pf), "Invalid c_type %d\n", c_type);
3342 return -EINVAL;
3343 }
3344
3345 return 0;
3346 }
3347
3348 /**
3349 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings
3350 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings
3351 * @ec: coalesce settings to program the device with
3352 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3353 *
3354 * Return 0 on success, and negative under the following conditions:
3355 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed.
3356 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3357 */
3358 static int
3359 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3360 {
3361 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3362 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3363 &vsi->rx_rings[q_num]->q_vector->rx))
3364 return -EINVAL;
3365 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3366 &vsi->tx_rings[q_num]->q_vector->tx))
3367 return -EINVAL;
3368 } else if (q_num < vsi->num_rxq) {
3369 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER,
3370 &vsi->rx_rings[q_num]->q_vector->rx))
3371 return -EINVAL;
3372 } else if (q_num < vsi->num_txq) {
3373 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER,
3374 &vsi->tx_rings[q_num]->q_vector->tx))
3375 return -EINVAL;
3376 } else {
3377 return -EINVAL;
3378 }
3379
3380 return 0;
3381 }
3382
3383 /**
3384 * __ice_get_coalesce - get ITR/INTRL values for the device
3385 * @netdev: pointer to the netdev associated with this query
3386 * @ec: ethtool structure to fill with driver's coalesce settings
3387 * @q_num: queue number to get the coalesce settings for
3388 *
3389 * If the caller passes in a negative q_num then we return coalesce settings
3390 * based on queue number 0, else use the actual q_num passed in.
3391 */
3392 static int
3393 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3394 int q_num)
3395 {
3396 struct ice_netdev_priv *np = netdev_priv(netdev);
3397 struct ice_vsi *vsi = np->vsi;
3398
3399 if (q_num < 0)
3400 q_num = 0;
3401
3402 if (ice_get_q_coalesce(vsi, ec, q_num))
3403 return -EINVAL;
3404
3405 return 0;
3406 }
3407
3408 static int
3409 ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3410 {
3411 return __ice_get_coalesce(netdev, ec, -1);
3412 }
3413
3414 static int
3415 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num,
3416 struct ethtool_coalesce *ec)
3417 {
3418 return __ice_get_coalesce(netdev, ec, q_num);
3419 }
3420
3421 /**
3422 * ice_set_rc_coalesce - set ITR values for specific ring container
3423 * @c_type: container type, Rx or Tx
3424 * @ec: ethtool structure from user to update ITR settings
3425 * @rc: ring container that the ITR values will come from
3426 * @vsi: VSI associated to the ring container
3427 *
3428 * Set specific ITR values. This is done per ice_ring_container because each
3429 * q_vector can have 1 or more rings and all of said ring(s) will have the same
3430 * ITR values.
3431 *
3432 * Returns 0 on success, negative otherwise.
3433 */
3434 static int
3435 ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec,
3436 struct ice_ring_container *rc, struct ice_vsi *vsi)
3437 {
3438 const char *c_type_str = (c_type == ICE_RX_CONTAINER) ? "rx" : "tx";
3439 u32 use_adaptive_coalesce, coalesce_usecs;
3440 struct ice_pf *pf = vsi->back;
3441 u16 itr_setting;
3442
3443 if (!rc->ring)
3444 return -EINVAL;
3445
3446 switch (c_type) {
3447 case ICE_RX_CONTAINER:
3448 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL ||
3449 (ec->rx_coalesce_usecs_high &&
3450 ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) {
3451 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n",
3452 c_type_str, pf->hw.intrl_gran,
3453 ICE_MAX_INTRL);
3454 return -EINVAL;
3455 }
3456 if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl) {
3457 rc->ring->q_vector->intrl = ec->rx_coalesce_usecs_high;
3458 wr32(&pf->hw, GLINT_RATE(rc->ring->q_vector->reg_idx),
3459 ice_intrl_usec_to_reg(ec->rx_coalesce_usecs_high,
3460 pf->hw.intrl_gran));
3461 }
3462
3463 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce;
3464 coalesce_usecs = ec->rx_coalesce_usecs;
3465
3466 break;
3467 case ICE_TX_CONTAINER:
3468 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce;
3469 coalesce_usecs = ec->tx_coalesce_usecs;
3470
3471 break;
3472 default:
3473 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n",
3474 c_type);
3475 return -EINVAL;
3476 }
3477
3478 itr_setting = rc->itr_setting & ~ICE_ITR_DYNAMIC;
3479 if (coalesce_usecs != itr_setting && use_adaptive_coalesce) {
3480 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n",
3481 c_type_str, c_type_str);
3482 return -EINVAL;
3483 }
3484
3485 if (coalesce_usecs > ICE_ITR_MAX) {
3486 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n",
3487 c_type_str, ICE_ITR_MAX);
3488 return -EINVAL;
3489 }
3490
3491 if (use_adaptive_coalesce) {
3492 rc->itr_setting |= ICE_ITR_DYNAMIC;
3493 } else {
3494 /* save the user set usecs */
3495 rc->itr_setting = coalesce_usecs;
3496 /* device ITR granularity is in 2 usec increments */
3497 rc->target_itr = ITR_REG_ALIGN(rc->itr_setting);
3498 }
3499
3500 return 0;
3501 }
3502
3503 /**
3504 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings
3505 * @vsi: VSI associated to the queue that need updating
3506 * @ec: coalesce settings to program the device with
3507 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3508 *
3509 * Return 0 on success, and negative under the following conditions:
3510 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed.
3511 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3512 */
3513 static int
3514 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3515 {
3516 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3517 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3518 &vsi->rx_rings[q_num]->q_vector->rx,
3519 vsi))
3520 return -EINVAL;
3521
3522 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3523 &vsi->tx_rings[q_num]->q_vector->tx,
3524 vsi))
3525 return -EINVAL;
3526 } else if (q_num < vsi->num_rxq) {
3527 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec,
3528 &vsi->rx_rings[q_num]->q_vector->rx,
3529 vsi))
3530 return -EINVAL;
3531 } else if (q_num < vsi->num_txq) {
3532 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec,
3533 &vsi->tx_rings[q_num]->q_vector->tx,
3534 vsi))
3535 return -EINVAL;
3536 } else {
3537 return -EINVAL;
3538 }
3539
3540 return 0;
3541 }
3542
3543 /**
3544 * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs
3545 * @netdev: netdev used for print
3546 * @itr_setting: previous user setting
3547 * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled
3548 * @coalesce_usecs: requested value of [tx|rx]-usecs
3549 * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs
3550 */
3551 static void
3552 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting,
3553 u32 use_adaptive_coalesce, u32 coalesce_usecs,
3554 const char *c_type_str)
3555 {
3556 if (use_adaptive_coalesce)
3557 return;
3558
3559 itr_setting = ITR_TO_REG(itr_setting);
3560
3561 if (itr_setting != coalesce_usecs && (coalesce_usecs % 2))
3562 netdev_info(netdev, "User set %s-usecs to %d, device only supports even values. Rounding down and attempting to set %s-usecs to %d\n",
3563 c_type_str, coalesce_usecs, c_type_str,
3564 ITR_REG_ALIGN(coalesce_usecs));
3565 }
3566
3567 /**
3568 * __ice_set_coalesce - set ITR/INTRL values for the device
3569 * @netdev: pointer to the netdev associated with this query
3570 * @ec: ethtool structure to fill with driver's coalesce settings
3571 * @q_num: queue number to get the coalesce settings for
3572 *
3573 * If the caller passes in a negative q_num then we set the coalesce settings
3574 * for all Tx/Rx queues, else use the actual q_num passed in.
3575 */
3576 static int
3577 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3578 int q_num)
3579 {
3580 struct ice_netdev_priv *np = netdev_priv(netdev);
3581 struct ice_vsi *vsi = np->vsi;
3582
3583 if (q_num < 0) {
3584 struct ice_q_vector *q_vector = vsi->q_vectors[0];
3585 int v_idx;
3586
3587 if (q_vector) {
3588 ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting,
3589 ec->use_adaptive_rx_coalesce,
3590 ec->rx_coalesce_usecs, "rx");
3591
3592 ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting,
3593 ec->use_adaptive_tx_coalesce,
3594 ec->tx_coalesce_usecs, "tx");
3595 }
3596
3597 ice_for_each_q_vector(vsi, v_idx) {
3598 /* In some cases if DCB is configured the num_[rx|tx]q
3599 * can be less than vsi->num_q_vectors. This check
3600 * accounts for that so we don't report a false failure
3601 */
3602 if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq)
3603 goto set_complete;
3604
3605 if (ice_set_q_coalesce(vsi, ec, v_idx))
3606 return -EINVAL;
3607 }
3608 goto set_complete;
3609 }
3610
3611 if (ice_set_q_coalesce(vsi, ec, q_num))
3612 return -EINVAL;
3613
3614 set_complete:
3615
3616 return 0;
3617 }
3618
3619 static int
3620 ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
3621 {
3622 return __ice_set_coalesce(netdev, ec, -1);
3623 }
3624
3625 static int
3626 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num,
3627 struct ethtool_coalesce *ec)
3628 {
3629 return __ice_set_coalesce(netdev, ec, q_num);
3630 }
3631
3632 #define ICE_I2C_EEPROM_DEV_ADDR 0xA0
3633 #define ICE_I2C_EEPROM_DEV_ADDR2 0xA2
3634 #define ICE_MODULE_TYPE_SFP 0x03
3635 #define ICE_MODULE_TYPE_QSFP_PLUS 0x0D
3636 #define ICE_MODULE_TYPE_QSFP28 0x11
3637 #define ICE_MODULE_SFF_ADDR_MODE 0x04
3638 #define ICE_MODULE_SFF_DIAG_CAPAB 0x40
3639 #define ICE_MODULE_REVISION_ADDR 0x01
3640 #define ICE_MODULE_SFF_8472_COMP 0x5E
3641 #define ICE_MODULE_SFF_8472_SWAP 0x5C
3642 #define ICE_MODULE_QSFP_MAX_LEN 640
3643
3644 /**
3645 * ice_get_module_info - get SFF module type and revision information
3646 * @netdev: network interface device structure
3647 * @modinfo: module EEPROM size and layout information structure
3648 */
3649 static int
3650 ice_get_module_info(struct net_device *netdev,
3651 struct ethtool_modinfo *modinfo)
3652 {
3653 struct ice_netdev_priv *np = netdev_priv(netdev);
3654 struct ice_vsi *vsi = np->vsi;
3655 struct ice_pf *pf = vsi->back;
3656 struct ice_hw *hw = &pf->hw;
3657 enum ice_status status;
3658 u8 sff8472_comp = 0;
3659 u8 sff8472_swap = 0;
3660 u8 sff8636_rev = 0;
3661 u8 value = 0;
3662
3663 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00,
3664 0, &value, 1, 0, NULL);
3665 if (status)
3666 return -EIO;
3667
3668 switch (value) {
3669 case ICE_MODULE_TYPE_SFP:
3670 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3671 ICE_MODULE_SFF_8472_COMP, 0x00, 0,
3672 &sff8472_comp, 1, 0, NULL);
3673 if (status)
3674 return -EIO;
3675 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3676 ICE_MODULE_SFF_8472_SWAP, 0x00, 0,
3677 &sff8472_swap, 1, 0, NULL);
3678 if (status)
3679 return -EIO;
3680
3681 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) {
3682 modinfo->type = ETH_MODULE_SFF_8079;
3683 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3684 } else if (sff8472_comp &&
3685 (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) {
3686 modinfo->type = ETH_MODULE_SFF_8472;
3687 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
3688 } else {
3689 modinfo->type = ETH_MODULE_SFF_8079;
3690 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
3691 }
3692 break;
3693 case ICE_MODULE_TYPE_QSFP_PLUS:
3694 case ICE_MODULE_TYPE_QSFP28:
3695 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
3696 ICE_MODULE_REVISION_ADDR, 0x00, 0,
3697 &sff8636_rev, 1, 0, NULL);
3698 if (status)
3699 return -EIO;
3700 /* Check revision compliance */
3701 if (sff8636_rev > 0x02) {
3702 /* Module is SFF-8636 compliant */
3703 modinfo->type = ETH_MODULE_SFF_8636;
3704 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
3705 } else {
3706 modinfo->type = ETH_MODULE_SFF_8436;
3707 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
3708 }
3709 break;
3710 default:
3711 netdev_warn(netdev, "SFF Module Type not recognized.\n");
3712 return -EINVAL;
3713 }
3714 return 0;
3715 }
3716
3717 /**
3718 * ice_get_module_eeprom - fill buffer with SFF EEPROM contents
3719 * @netdev: network interface device structure
3720 * @ee: EEPROM dump request structure
3721 * @data: buffer to be filled with EEPROM contents
3722 */
3723 static int
3724 ice_get_module_eeprom(struct net_device *netdev,
3725 struct ethtool_eeprom *ee, u8 *data)
3726 {
3727 struct ice_netdev_priv *np = netdev_priv(netdev);
3728 u8 addr = ICE_I2C_EEPROM_DEV_ADDR;
3729 struct ice_vsi *vsi = np->vsi;
3730 struct ice_pf *pf = vsi->back;
3731 struct ice_hw *hw = &pf->hw;
3732 enum ice_status status;
3733 bool is_sfp = false;
3734 u16 offset = 0;
3735 u8 value = 0;
3736 u8 page = 0;
3737 int i;
3738
3739 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0,
3740 &value, 1, 0, NULL);
3741 if (status)
3742 return -EIO;
3743
3744 if (!ee || !ee->len || !data)
3745 return -EINVAL;
3746
3747 if (value == ICE_MODULE_TYPE_SFP)
3748 is_sfp = true;
3749
3750 for (i = 0; i < ee->len; i++) {
3751 offset = i + ee->offset;
3752
3753 /* Check if we need to access the other memory page */
3754 if (is_sfp) {
3755 if (offset >= ETH_MODULE_SFF_8079_LEN) {
3756 offset -= ETH_MODULE_SFF_8079_LEN;
3757 addr = ICE_I2C_EEPROM_DEV_ADDR2;
3758 }
3759 } else {
3760 while (offset >= ETH_MODULE_SFF_8436_LEN) {
3761 /* Compute memory page number and offset. */
3762 offset -= ETH_MODULE_SFF_8436_LEN / 2;
3763 page++;
3764 }
3765 }
3766
3767 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, !is_sfp,
3768 &value, 1, 0, NULL);
3769 if (status)
3770 value = 0;
3771 data[i] = value;
3772 }
3773 return 0;
3774 }
3775
3776 static const struct ethtool_ops ice_ethtool_ops = {
3777 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
3778 ETHTOOL_COALESCE_USE_ADAPTIVE |
3779 ETHTOOL_COALESCE_RX_USECS_HIGH,
3780 .get_link_ksettings = ice_get_link_ksettings,
3781 .set_link_ksettings = ice_set_link_ksettings,
3782 .get_drvinfo = ice_get_drvinfo,
3783 .get_regs_len = ice_get_regs_len,
3784 .get_regs = ice_get_regs,
3785 .get_msglevel = ice_get_msglevel,
3786 .set_msglevel = ice_set_msglevel,
3787 .self_test = ice_self_test,
3788 .get_link = ethtool_op_get_link,
3789 .get_eeprom_len = ice_get_eeprom_len,
3790 .get_eeprom = ice_get_eeprom,
3791 .get_coalesce = ice_get_coalesce,
3792 .set_coalesce = ice_set_coalesce,
3793 .get_strings = ice_get_strings,
3794 .set_phys_id = ice_set_phys_id,
3795 .get_ethtool_stats = ice_get_ethtool_stats,
3796 .get_priv_flags = ice_get_priv_flags,
3797 .set_priv_flags = ice_set_priv_flags,
3798 .get_sset_count = ice_get_sset_count,
3799 .get_rxnfc = ice_get_rxnfc,
3800 .set_rxnfc = ice_set_rxnfc,
3801 .get_ringparam = ice_get_ringparam,
3802 .set_ringparam = ice_set_ringparam,
3803 .nway_reset = ice_nway_reset,
3804 .get_pauseparam = ice_get_pauseparam,
3805 .set_pauseparam = ice_set_pauseparam,
3806 .get_rxfh_key_size = ice_get_rxfh_key_size,
3807 .get_rxfh_indir_size = ice_get_rxfh_indir_size,
3808 .get_rxfh = ice_get_rxfh,
3809 .set_rxfh = ice_set_rxfh,
3810 .get_channels = ice_get_channels,
3811 .set_channels = ice_set_channels,
3812 .get_ts_info = ethtool_op_get_ts_info,
3813 .get_per_queue_coalesce = ice_get_per_q_coalesce,
3814 .set_per_queue_coalesce = ice_set_per_q_coalesce,
3815 .get_fecparam = ice_get_fecparam,
3816 .set_fecparam = ice_set_fecparam,
3817 .get_module_info = ice_get_module_info,
3818 .get_module_eeprom = ice_get_module_eeprom,
3819 };
3820
3821 static const struct ethtool_ops ice_ethtool_safe_mode_ops = {
3822 .get_link_ksettings = ice_get_link_ksettings,
3823 .set_link_ksettings = ice_set_link_ksettings,
3824 .get_drvinfo = ice_get_drvinfo,
3825 .get_regs_len = ice_get_regs_len,
3826 .get_regs = ice_get_regs,
3827 .get_msglevel = ice_get_msglevel,
3828 .set_msglevel = ice_set_msglevel,
3829 .get_link = ethtool_op_get_link,
3830 .get_eeprom_len = ice_get_eeprom_len,
3831 .get_eeprom = ice_get_eeprom,
3832 .get_strings = ice_get_strings,
3833 .get_ethtool_stats = ice_get_ethtool_stats,
3834 .get_sset_count = ice_get_sset_count,
3835 .get_ringparam = ice_get_ringparam,
3836 .set_ringparam = ice_set_ringparam,
3837 .nway_reset = ice_nway_reset,
3838 .get_channels = ice_get_channels,
3839 };
3840
3841 /**
3842 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops
3843 * @netdev: network interface device structure
3844 */
3845 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev)
3846 {
3847 netdev->ethtool_ops = &ice_ethtool_safe_mode_ops;
3848 }
3849
3850 /**
3851 * ice_set_ethtool_ops - setup netdev ethtool ops
3852 * @netdev: network interface device structure
3853 *
3854 * setup netdev ethtool ops with ice specific ops
3855 */
3856 void ice_set_ethtool_ops(struct net_device *netdev)
3857 {
3858 netdev->ethtool_ops = &ice_ethtool_ops;
3859 }
Linux with added FPC-III support