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_fltr.h"
9 #include "ice_lib.h"
10 #include "ice_dcb_lib.h"
11 #include <net/dcbnl.h>
12
13 struct ice_stats {
14 char stat_string[ETH_GSTRING_LEN];
15 int sizeof_stat;
16 int stat_offset;
17 };
18
19 #define ICE_STAT(_type, _name, _stat) { \
20 .stat_string = _name, \
21 .sizeof_stat = sizeof_field(_type, _stat), \
22 .stat_offset = offsetof(_type, _stat) \
23 }
24
25 #define ICE_VSI_STAT(_name, _stat) \
26 ICE_STAT(struct ice_vsi, _name, _stat)
27 #define ICE_PF_STAT(_name, _stat) \
28 ICE_STAT(struct ice_pf, _name, _stat)
29
ice_q_stats_len(struct net_device * netdev)30 static int ice_q_stats_len(struct net_device *netdev)
31 {
32 struct ice_netdev_priv *np = netdev_priv(netdev);
33
34 return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
35 (sizeof(struct ice_q_stats) / sizeof(u64)));
36 }
37
38 #define ICE_PF_STATS_LEN ARRAY_SIZE(ice_gstrings_pf_stats)
39 #define ICE_VSI_STATS_LEN ARRAY_SIZE(ice_gstrings_vsi_stats)
40
41 #define ICE_PFC_STATS_LEN ( \
42 (sizeof_field(struct ice_pf, stats.priority_xoff_rx) + \
43 sizeof_field(struct ice_pf, stats.priority_xon_rx) + \
44 sizeof_field(struct ice_pf, stats.priority_xoff_tx) + \
45 sizeof_field(struct ice_pf, stats.priority_xon_tx)) \
46 / sizeof(u64))
47 #define ICE_ALL_STATS_LEN(n) (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \
48 ICE_VSI_STATS_LEN + ice_q_stats_len(n))
49
50 static const struct ice_stats ice_gstrings_vsi_stats[] = {
51 ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
52 ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
53 ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
54 ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
55 ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
56 ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
57 ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
58 ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
59 ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards),
60 ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
61 ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
62 ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
63 ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
64 ICE_VSI_STAT("tx_linearize", tx_linearize),
65 ICE_VSI_STAT("tx_busy", tx_busy),
66 ICE_VSI_STAT("tx_restart", tx_restart),
67 };
68
69 enum ice_ethtool_test_id {
70 ICE_ETH_TEST_REG = 0,
71 ICE_ETH_TEST_EEPROM,
72 ICE_ETH_TEST_INTR,
73 ICE_ETH_TEST_LOOP,
74 ICE_ETH_TEST_LINK,
75 };
76
77 static const char ice_gstrings_test[][ETH_GSTRING_LEN] = {
78 "Register test (offline)",
79 "EEPROM test (offline)",
80 "Interrupt test (offline)",
81 "Loopback test (offline)",
82 "Link test (on/offline)",
83 };
84
85 #define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN)
86
87 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
88 * but they aren't. This device is capable of supporting multiple
89 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
90 * netdevs whereas the PF_STATs are for the physical function that's
91 * hosting these netdevs.
92 *
93 * The PF_STATs are appended to the netdev stats only when ethtool -S
94 * is queried on the base PF netdev.
95 */
96 static const struct ice_stats ice_gstrings_pf_stats[] = {
97 ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes),
98 ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes),
99 ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast),
100 ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast),
101 ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast),
102 ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast),
103 ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast),
104 ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast),
105 ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors),
106 ICE_PF_STAT("tx_timeout.nic", tx_timeout_count),
107 ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64),
108 ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64),
109 ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127),
110 ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127),
111 ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255),
112 ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255),
113 ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511),
114 ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511),
115 ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023),
116 ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023),
117 ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522),
118 ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522),
119 ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big),
120 ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big),
121 ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx),
122 ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx),
123 ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx),
124 ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx),
125 ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down),
126 ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize),
127 ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments),
128 ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize),
129 ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber),
130 ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error),
131 ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors),
132 ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards),
133 ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors),
134 ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes),
135 ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults),
136 ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults),
137 ICE_PF_STAT("fdir_sb_match.nic", stats.fd_sb_match),
138 ICE_PF_STAT("fdir_sb_status.nic", stats.fd_sb_status),
139 ICE_PF_STAT("tx_hwtstamp_skipped", ptp.tx_hwtstamp_skipped),
140 ICE_PF_STAT("tx_hwtstamp_timeouts", ptp.tx_hwtstamp_timeouts),
141 ICE_PF_STAT("tx_hwtstamp_flushed", ptp.tx_hwtstamp_flushed),
142 ICE_PF_STAT("tx_hwtstamp_discarded", ptp.tx_hwtstamp_discarded),
143 ICE_PF_STAT("late_cached_phc_updates", ptp.late_cached_phc_updates),
144 };
145
146 static const u32 ice_regs_dump_list[] = {
147 PFGEN_STATE,
148 PRTGEN_STATUS,
149 QRX_CTRL(0),
150 QINT_TQCTL(0),
151 QINT_RQCTL(0),
152 PFINT_OICR_ENA,
153 QRX_ITR(0),
154 };
155
156 struct ice_priv_flag {
157 char name[ETH_GSTRING_LEN];
158 u32 bitno; /* bit position in pf->flags */
159 };
160
161 #define ICE_PRIV_FLAG(_name, _bitno) { \
162 .name = _name, \
163 .bitno = _bitno, \
164 }
165
166 static const struct ice_priv_flag ice_gstrings_priv_flags[] = {
167 ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA),
168 ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT),
169 ICE_PRIV_FLAG("vf-true-promisc-support",
170 ICE_FLAG_VF_TRUE_PROMISC_ENA),
171 ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF),
172 ICE_PRIV_FLAG("vf-vlan-pruning", ICE_FLAG_VF_VLAN_PRUNING),
173 ICE_PRIV_FLAG("legacy-rx", ICE_FLAG_LEGACY_RX),
174 };
175
176 #define ICE_PRIV_FLAG_ARRAY_SIZE ARRAY_SIZE(ice_gstrings_priv_flags)
177
178 static void
__ice_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo,struct ice_vsi * vsi)179 __ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo,
180 struct ice_vsi *vsi)
181 {
182 struct ice_pf *pf = vsi->back;
183 struct ice_hw *hw = &pf->hw;
184 struct ice_orom_info *orom;
185 struct ice_nvm_info *nvm;
186
187 nvm = &hw->flash.nvm;
188 orom = &hw->flash.orom;
189
190 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
191
192 /* Display NVM version (from which the firmware version can be
193 * determined) which contains more pertinent information.
194 */
195 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
196 "%x.%02x 0x%x %d.%d.%d", nvm->major, nvm->minor,
197 nvm->eetrack, orom->major, orom->build, orom->patch);
198
199 strscpy(drvinfo->bus_info, pci_name(pf->pdev),
200 sizeof(drvinfo->bus_info));
201 }
202
203 static void
ice_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)204 ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
205 {
206 struct ice_netdev_priv *np = netdev_priv(netdev);
207
208 __ice_get_drvinfo(netdev, drvinfo, np->vsi);
209 drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE;
210 }
211
ice_get_regs_len(struct net_device __always_unused * netdev)212 static int ice_get_regs_len(struct net_device __always_unused *netdev)
213 {
214 return sizeof(ice_regs_dump_list);
215 }
216
217 static void
ice_get_regs(struct net_device * netdev,struct ethtool_regs * regs,void * p)218 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
219 {
220 struct ice_netdev_priv *np = netdev_priv(netdev);
221 struct ice_pf *pf = np->vsi->back;
222 struct ice_hw *hw = &pf->hw;
223 u32 *regs_buf = (u32 *)p;
224 unsigned int i;
225
226 regs->version = 1;
227
228 for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
229 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
230 }
231
ice_get_msglevel(struct net_device * netdev)232 static u32 ice_get_msglevel(struct net_device *netdev)
233 {
234 struct ice_netdev_priv *np = netdev_priv(netdev);
235 struct ice_pf *pf = np->vsi->back;
236
237 #ifndef CONFIG_DYNAMIC_DEBUG
238 if (pf->hw.debug_mask)
239 netdev_info(netdev, "hw debug_mask: 0x%llX\n",
240 pf->hw.debug_mask);
241 #endif /* !CONFIG_DYNAMIC_DEBUG */
242
243 return pf->msg_enable;
244 }
245
ice_set_msglevel(struct net_device * netdev,u32 data)246 static void ice_set_msglevel(struct net_device *netdev, u32 data)
247 {
248 struct ice_netdev_priv *np = netdev_priv(netdev);
249 struct ice_pf *pf = np->vsi->back;
250
251 #ifndef CONFIG_DYNAMIC_DEBUG
252 if (ICE_DBG_USER & data)
253 pf->hw.debug_mask = data;
254 else
255 pf->msg_enable = data;
256 #else
257 pf->msg_enable = data;
258 #endif /* !CONFIG_DYNAMIC_DEBUG */
259 }
260
ice_get_eeprom_len(struct net_device * netdev)261 static int ice_get_eeprom_len(struct net_device *netdev)
262 {
263 struct ice_netdev_priv *np = netdev_priv(netdev);
264 struct ice_pf *pf = np->vsi->back;
265
266 return (int)pf->hw.flash.flash_size;
267 }
268
269 static int
ice_get_eeprom(struct net_device * netdev,struct ethtool_eeprom * eeprom,u8 * bytes)270 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
271 u8 *bytes)
272 {
273 struct ice_netdev_priv *np = netdev_priv(netdev);
274 struct ice_vsi *vsi = np->vsi;
275 struct ice_pf *pf = vsi->back;
276 struct ice_hw *hw = &pf->hw;
277 struct device *dev;
278 int ret;
279 u8 *buf;
280
281 dev = ice_pf_to_dev(pf);
282
283 eeprom->magic = hw->vendor_id | (hw->device_id << 16);
284 netdev_dbg(netdev, "GEEPROM cmd 0x%08x, offset 0x%08x, len 0x%08x\n",
285 eeprom->cmd, eeprom->offset, eeprom->len);
286
287 buf = kzalloc(eeprom->len, GFP_KERNEL);
288 if (!buf)
289 return -ENOMEM;
290
291 ret = ice_acquire_nvm(hw, ICE_RES_READ);
292 if (ret) {
293 dev_err(dev, "ice_acquire_nvm failed, err %d aq_err %s\n",
294 ret, ice_aq_str(hw->adminq.sq_last_status));
295 goto out;
296 }
297
298 ret = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->len, buf,
299 false);
300 if (ret) {
301 dev_err(dev, "ice_read_flat_nvm failed, err %d aq_err %s\n",
302 ret, ice_aq_str(hw->adminq.sq_last_status));
303 goto release;
304 }
305
306 memcpy(bytes, buf, eeprom->len);
307 release:
308 ice_release_nvm(hw);
309 out:
310 kfree(buf);
311 return ret;
312 }
313
314 /**
315 * ice_active_vfs - check if there are any active VFs
316 * @pf: board private structure
317 *
318 * Returns true if an active VF is found, otherwise returns false
319 */
ice_active_vfs(struct ice_pf * pf)320 static bool ice_active_vfs(struct ice_pf *pf)
321 {
322 bool active = false;
323 struct ice_vf *vf;
324 unsigned int bkt;
325
326 rcu_read_lock();
327 ice_for_each_vf_rcu(pf, bkt, vf) {
328 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
329 active = true;
330 break;
331 }
332 }
333 rcu_read_unlock();
334
335 return active;
336 }
337
338 /**
339 * ice_link_test - perform a link test on a given net_device
340 * @netdev: network interface device structure
341 *
342 * This function performs one of the self-tests required by ethtool.
343 * Returns 0 on success, non-zero on failure.
344 */
ice_link_test(struct net_device * netdev)345 static u64 ice_link_test(struct net_device *netdev)
346 {
347 struct ice_netdev_priv *np = netdev_priv(netdev);
348 bool link_up = false;
349 int status;
350
351 netdev_info(netdev, "link test\n");
352 status = ice_get_link_status(np->vsi->port_info, &link_up);
353 if (status) {
354 netdev_err(netdev, "link query error, status = %d\n",
355 status);
356 return 1;
357 }
358
359 if (!link_up)
360 return 2;
361
362 return 0;
363 }
364
365 /**
366 * ice_eeprom_test - perform an EEPROM test on a given net_device
367 * @netdev: network interface device structure
368 *
369 * This function performs one of the self-tests required by ethtool.
370 * Returns 0 on success, non-zero on failure.
371 */
ice_eeprom_test(struct net_device * netdev)372 static u64 ice_eeprom_test(struct net_device *netdev)
373 {
374 struct ice_netdev_priv *np = netdev_priv(netdev);
375 struct ice_pf *pf = np->vsi->back;
376
377 netdev_info(netdev, "EEPROM test\n");
378 return !!(ice_nvm_validate_checksum(&pf->hw));
379 }
380
381 /**
382 * ice_reg_pattern_test
383 * @hw: pointer to the HW struct
384 * @reg: reg to be tested
385 * @mask: bits to be touched
386 */
ice_reg_pattern_test(struct ice_hw * hw,u32 reg,u32 mask)387 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask)
388 {
389 struct ice_pf *pf = (struct ice_pf *)hw->back;
390 struct device *dev = ice_pf_to_dev(pf);
391 static const u32 patterns[] = {
392 0x5A5A5A5A, 0xA5A5A5A5,
393 0x00000000, 0xFFFFFFFF
394 };
395 u32 val, orig_val;
396 unsigned int i;
397
398 orig_val = rd32(hw, reg);
399 for (i = 0; i < ARRAY_SIZE(patterns); ++i) {
400 u32 pattern = patterns[i] & mask;
401
402 wr32(hw, reg, pattern);
403 val = rd32(hw, reg);
404 if (val == pattern)
405 continue;
406 dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n"
407 , __func__, reg, pattern, val);
408 return 1;
409 }
410
411 wr32(hw, reg, orig_val);
412 val = rd32(hw, reg);
413 if (val != orig_val) {
414 dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n"
415 , __func__, reg, orig_val, val);
416 return 1;
417 }
418
419 return 0;
420 }
421
422 /**
423 * ice_reg_test - perform a register test on a given net_device
424 * @netdev: network interface device structure
425 *
426 * This function performs one of the self-tests required by ethtool.
427 * Returns 0 on success, non-zero on failure.
428 */
ice_reg_test(struct net_device * netdev)429 static u64 ice_reg_test(struct net_device *netdev)
430 {
431 struct ice_netdev_priv *np = netdev_priv(netdev);
432 struct ice_hw *hw = np->vsi->port_info->hw;
433 u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ?
434 hw->func_caps.common_cap.num_msix_vectors - 1 : 1;
435 struct ice_diag_reg_test_info {
436 u32 address;
437 u32 mask;
438 u32 elem_num;
439 u32 elem_size;
440 } ice_reg_list[] = {
441 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
442 GLINT_ITR(0, 1) - GLINT_ITR(0, 0)},
443 {GLINT_ITR(1, 0), 0x00000fff, int_elements,
444 GLINT_ITR(1, 1) - GLINT_ITR(1, 0)},
445 {GLINT_ITR(0, 0), 0x00000fff, int_elements,
446 GLINT_ITR(2, 1) - GLINT_ITR(2, 0)},
447 {GLINT_CTL, 0xffff0001, 1, 0}
448 };
449 unsigned int i;
450
451 netdev_dbg(netdev, "Register test\n");
452 for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) {
453 u32 j;
454
455 for (j = 0; j < ice_reg_list[i].elem_num; ++j) {
456 u32 mask = ice_reg_list[i].mask;
457 u32 reg = ice_reg_list[i].address +
458 (j * ice_reg_list[i].elem_size);
459
460 /* bail on failure (non-zero return) */
461 if (ice_reg_pattern_test(hw, reg, mask))
462 return 1;
463 }
464 }
465
466 return 0;
467 }
468
469 /**
470 * ice_lbtest_prepare_rings - configure Tx/Rx test rings
471 * @vsi: pointer to the VSI structure
472 *
473 * Function configures rings of a VSI for loopback test without
474 * enabling interrupts or informing the kernel about new queues.
475 *
476 * Returns 0 on success, negative on failure.
477 */
ice_lbtest_prepare_rings(struct ice_vsi * vsi)478 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi)
479 {
480 int status;
481
482 status = ice_vsi_setup_tx_rings(vsi);
483 if (status)
484 goto err_setup_tx_ring;
485
486 status = ice_vsi_setup_rx_rings(vsi);
487 if (status)
488 goto err_setup_rx_ring;
489
490 status = ice_vsi_cfg(vsi);
491 if (status)
492 goto err_setup_rx_ring;
493
494 status = ice_vsi_start_all_rx_rings(vsi);
495 if (status)
496 goto err_start_rx_ring;
497
498 return status;
499
500 err_start_rx_ring:
501 ice_vsi_free_rx_rings(vsi);
502 err_setup_rx_ring:
503 ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
504 err_setup_tx_ring:
505 ice_vsi_free_tx_rings(vsi);
506
507 return status;
508 }
509
510 /**
511 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test
512 * @vsi: pointer to the VSI structure
513 *
514 * Function stops and frees VSI rings after a loopback test.
515 * Returns 0 on success, negative on failure.
516 */
ice_lbtest_disable_rings(struct ice_vsi * vsi)517 static int ice_lbtest_disable_rings(struct ice_vsi *vsi)
518 {
519 int status;
520
521 status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0);
522 if (status)
523 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n",
524 vsi->vsi_num, status);
525
526 status = ice_vsi_stop_all_rx_rings(vsi);
527 if (status)
528 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n",
529 vsi->vsi_num, status);
530
531 ice_vsi_free_tx_rings(vsi);
532 ice_vsi_free_rx_rings(vsi);
533
534 return status;
535 }
536
537 /**
538 * ice_lbtest_create_frame - create test packet
539 * @pf: pointer to the PF structure
540 * @ret_data: allocated frame buffer
541 * @size: size of the packet data
542 *
543 * Function allocates a frame with a test pattern on specific offsets.
544 * Returns 0 on success, non-zero on failure.
545 */
ice_lbtest_create_frame(struct ice_pf * pf,u8 ** ret_data,u16 size)546 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size)
547 {
548 u8 *data;
549
550 if (!pf)
551 return -EINVAL;
552
553 data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL);
554 if (!data)
555 return -ENOMEM;
556
557 /* Since the ethernet test frame should always be at least
558 * 64 bytes long, fill some octets in the payload with test data.
559 */
560 memset(data, 0xFF, size);
561 data[32] = 0xDE;
562 data[42] = 0xAD;
563 data[44] = 0xBE;
564 data[46] = 0xEF;
565
566 *ret_data = data;
567
568 return 0;
569 }
570
571 /**
572 * ice_lbtest_check_frame - verify received loopback frame
573 * @frame: pointer to the raw packet data
574 *
575 * Function verifies received test frame with a pattern.
576 * Returns true if frame matches the pattern, false otherwise.
577 */
ice_lbtest_check_frame(u8 * frame)578 static bool ice_lbtest_check_frame(u8 *frame)
579 {
580 /* Validate bytes of a frame under offsets chosen earlier */
581 if (frame[32] == 0xDE &&
582 frame[42] == 0xAD &&
583 frame[44] == 0xBE &&
584 frame[46] == 0xEF &&
585 frame[48] == 0xFF)
586 return true;
587
588 return false;
589 }
590
591 /**
592 * ice_diag_send - send test frames to the test ring
593 * @tx_ring: pointer to the transmit ring
594 * @data: pointer to the raw packet data
595 * @size: size of the packet to send
596 *
597 * Function sends loopback packets on a test Tx ring.
598 */
ice_diag_send(struct ice_tx_ring * tx_ring,u8 * data,u16 size)599 static int ice_diag_send(struct ice_tx_ring *tx_ring, u8 *data, u16 size)
600 {
601 struct ice_tx_desc *tx_desc;
602 struct ice_tx_buf *tx_buf;
603 dma_addr_t dma;
604 u64 td_cmd;
605
606 tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use);
607 tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use];
608
609 dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE);
610 if (dma_mapping_error(tx_ring->dev, dma))
611 return -EINVAL;
612
613 tx_desc->buf_addr = cpu_to_le64(dma);
614
615 /* These flags are required for a descriptor to be pushed out */
616 td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS);
617 tx_desc->cmd_type_offset_bsz =
618 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA |
619 (td_cmd << ICE_TXD_QW1_CMD_S) |
620 ((u64)0 << ICE_TXD_QW1_OFFSET_S) |
621 ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) |
622 ((u64)0 << ICE_TXD_QW1_L2TAG1_S));
623
624 tx_buf->next_to_watch = tx_desc;
625
626 /* Force memory write to complete before letting h/w know
627 * there are new descriptors to fetch.
628 */
629 wmb();
630
631 tx_ring->next_to_use++;
632 if (tx_ring->next_to_use >= tx_ring->count)
633 tx_ring->next_to_use = 0;
634
635 writel_relaxed(tx_ring->next_to_use, tx_ring->tail);
636
637 /* Wait until the packets get transmitted to the receive queue. */
638 usleep_range(1000, 2000);
639 dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE);
640
641 return 0;
642 }
643
644 #define ICE_LB_FRAME_SIZE 64
645 /**
646 * ice_lbtest_receive_frames - receive and verify test frames
647 * @rx_ring: pointer to the receive ring
648 *
649 * Function receives loopback packets and verify their correctness.
650 * Returns number of received valid frames.
651 */
ice_lbtest_receive_frames(struct ice_rx_ring * rx_ring)652 static int ice_lbtest_receive_frames(struct ice_rx_ring *rx_ring)
653 {
654 struct ice_rx_buf *rx_buf;
655 int valid_frames, i;
656 u8 *received_buf;
657
658 valid_frames = 0;
659
660 for (i = 0; i < rx_ring->count; i++) {
661 union ice_32b_rx_flex_desc *rx_desc;
662
663 rx_desc = ICE_RX_DESC(rx_ring, i);
664
665 if (!(rx_desc->wb.status_error0 &
666 (cpu_to_le16(BIT(ICE_RX_FLEX_DESC_STATUS0_DD_S)) |
667 cpu_to_le16(BIT(ICE_RX_FLEX_DESC_STATUS0_EOF_S)))))
668 continue;
669
670 rx_buf = &rx_ring->rx_buf[i];
671 received_buf = page_address(rx_buf->page) + rx_buf->page_offset;
672
673 if (ice_lbtest_check_frame(received_buf))
674 valid_frames++;
675 }
676
677 return valid_frames;
678 }
679
680 /**
681 * ice_loopback_test - perform a loopback test on a given net_device
682 * @netdev: network interface device structure
683 *
684 * This function performs one of the self-tests required by ethtool.
685 * Returns 0 on success, non-zero on failure.
686 */
ice_loopback_test(struct net_device * netdev)687 static u64 ice_loopback_test(struct net_device *netdev)
688 {
689 struct ice_netdev_priv *np = netdev_priv(netdev);
690 struct ice_vsi *orig_vsi = np->vsi, *test_vsi;
691 struct ice_pf *pf = orig_vsi->back;
692 u8 broadcast[ETH_ALEN], ret = 0;
693 int num_frames, valid_frames;
694 struct ice_tx_ring *tx_ring;
695 struct ice_rx_ring *rx_ring;
696 struct device *dev;
697 u8 *tx_frame;
698 int i;
699
700 dev = ice_pf_to_dev(pf);
701 netdev_info(netdev, "loopback test\n");
702
703 test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info);
704 if (!test_vsi) {
705 netdev_err(netdev, "Failed to create a VSI for the loopback test\n");
706 return 1;
707 }
708
709 test_vsi->netdev = netdev;
710 tx_ring = test_vsi->tx_rings[0];
711 rx_ring = test_vsi->rx_rings[0];
712
713 if (ice_lbtest_prepare_rings(test_vsi)) {
714 ret = 2;
715 goto lbtest_vsi_close;
716 }
717
718 if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) {
719 ret = 3;
720 goto lbtest_rings_dis;
721 }
722
723 /* Enable MAC loopback in firmware */
724 if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) {
725 ret = 4;
726 goto lbtest_mac_dis;
727 }
728
729 /* Test VSI needs to receive broadcast packets */
730 eth_broadcast_addr(broadcast);
731 if (ice_fltr_add_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) {
732 ret = 5;
733 goto lbtest_mac_dis;
734 }
735
736 if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) {
737 ret = 7;
738 goto remove_mac_filters;
739 }
740
741 num_frames = min_t(int, tx_ring->count, 32);
742 for (i = 0; i < num_frames; i++) {
743 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) {
744 ret = 8;
745 goto lbtest_free_frame;
746 }
747 }
748
749 valid_frames = ice_lbtest_receive_frames(rx_ring);
750 if (!valid_frames)
751 ret = 9;
752 else if (valid_frames != num_frames)
753 ret = 10;
754
755 lbtest_free_frame:
756 devm_kfree(dev, tx_frame);
757 remove_mac_filters:
758 if (ice_fltr_remove_mac(test_vsi, broadcast, ICE_FWD_TO_VSI))
759 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n");
760 lbtest_mac_dis:
761 /* Disable MAC loopback after the test is completed. */
762 if (ice_aq_set_mac_loopback(&pf->hw, false, NULL))
763 netdev_err(netdev, "Could not disable MAC loopback\n");
764 lbtest_rings_dis:
765 if (ice_lbtest_disable_rings(test_vsi))
766 netdev_err(netdev, "Could not disable test rings\n");
767 lbtest_vsi_close:
768 test_vsi->netdev = NULL;
769 if (ice_vsi_release(test_vsi))
770 netdev_err(netdev, "Failed to remove the test VSI\n");
771
772 return ret;
773 }
774
775 /**
776 * ice_intr_test - perform an interrupt test on a given net_device
777 * @netdev: network interface device structure
778 *
779 * This function performs one of the self-tests required by ethtool.
780 * Returns 0 on success, non-zero on failure.
781 */
ice_intr_test(struct net_device * netdev)782 static u64 ice_intr_test(struct net_device *netdev)
783 {
784 struct ice_netdev_priv *np = netdev_priv(netdev);
785 struct ice_pf *pf = np->vsi->back;
786 u16 swic_old = pf->sw_int_count;
787
788 netdev_info(netdev, "interrupt test\n");
789
790 wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx),
791 GLINT_DYN_CTL_SW_ITR_INDX_M |
792 GLINT_DYN_CTL_INTENA_MSK_M |
793 GLINT_DYN_CTL_SWINT_TRIG_M);
794
795 usleep_range(1000, 2000);
796 return (swic_old == pf->sw_int_count);
797 }
798
799 /**
800 * ice_self_test - handler function for performing a self-test by ethtool
801 * @netdev: network interface device structure
802 * @eth_test: ethtool_test structure
803 * @data: required by ethtool.self_test
804 *
805 * This function is called after invoking 'ethtool -t devname' command where
806 * devname is the name of the network device on which ethtool should operate.
807 * It performs a set of self-tests to check if a device works properly.
808 */
809 static void
ice_self_test(struct net_device * netdev,struct ethtool_test * eth_test,u64 * data)810 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test,
811 u64 *data)
812 {
813 struct ice_netdev_priv *np = netdev_priv(netdev);
814 bool if_running = netif_running(netdev);
815 struct ice_pf *pf = np->vsi->back;
816 struct device *dev;
817
818 dev = ice_pf_to_dev(pf);
819
820 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
821 netdev_info(netdev, "offline testing starting\n");
822
823 set_bit(ICE_TESTING, pf->state);
824
825 if (ice_active_vfs(pf)) {
826 dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
827 data[ICE_ETH_TEST_REG] = 1;
828 data[ICE_ETH_TEST_EEPROM] = 1;
829 data[ICE_ETH_TEST_INTR] = 1;
830 data[ICE_ETH_TEST_LOOP] = 1;
831 data[ICE_ETH_TEST_LINK] = 1;
832 eth_test->flags |= ETH_TEST_FL_FAILED;
833 clear_bit(ICE_TESTING, pf->state);
834 goto skip_ol_tests;
835 }
836 /* If the device is online then take it offline */
837 if (if_running)
838 /* indicate we're in test mode */
839 ice_stop(netdev);
840
841 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
842 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev);
843 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev);
844 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev);
845 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev);
846
847 if (data[ICE_ETH_TEST_LINK] ||
848 data[ICE_ETH_TEST_EEPROM] ||
849 data[ICE_ETH_TEST_LOOP] ||
850 data[ICE_ETH_TEST_INTR] ||
851 data[ICE_ETH_TEST_REG])
852 eth_test->flags |= ETH_TEST_FL_FAILED;
853
854 clear_bit(ICE_TESTING, pf->state);
855
856 if (if_running) {
857 int status = ice_open(netdev);
858
859 if (status) {
860 dev_err(dev, "Could not open device %s, err %d\n",
861 pf->int_name, status);
862 }
863 }
864 } else {
865 /* Online tests */
866 netdev_info(netdev, "online testing starting\n");
867
868 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev);
869 if (data[ICE_ETH_TEST_LINK])
870 eth_test->flags |= ETH_TEST_FL_FAILED;
871
872 /* Offline only tests, not run in online; pass by default */
873 data[ICE_ETH_TEST_REG] = 0;
874 data[ICE_ETH_TEST_EEPROM] = 0;
875 data[ICE_ETH_TEST_INTR] = 0;
876 data[ICE_ETH_TEST_LOOP] = 0;
877 }
878
879 skip_ol_tests:
880 netdev_info(netdev, "testing finished\n");
881 }
882
883 static void
__ice_get_strings(struct net_device * netdev,u32 stringset,u8 * data,struct ice_vsi * vsi)884 __ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data,
885 struct ice_vsi *vsi)
886 {
887 unsigned int i;
888 u8 *p = data;
889
890 switch (stringset) {
891 case ETH_SS_STATS:
892 for (i = 0; i < ICE_VSI_STATS_LEN; i++)
893 ethtool_sprintf(&p,
894 ice_gstrings_vsi_stats[i].stat_string);
895
896 if (ice_is_port_repr_netdev(netdev))
897 return;
898
899 ice_for_each_alloc_txq(vsi, i) {
900 ethtool_sprintf(&p, "tx_queue_%u_packets", i);
901 ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
902 }
903
904 ice_for_each_alloc_rxq(vsi, i) {
905 ethtool_sprintf(&p, "rx_queue_%u_packets", i);
906 ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
907 }
908
909 if (vsi->type != ICE_VSI_PF)
910 return;
911
912 for (i = 0; i < ICE_PF_STATS_LEN; i++)
913 ethtool_sprintf(&p,
914 ice_gstrings_pf_stats[i].stat_string);
915
916 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
917 ethtool_sprintf(&p, "tx_priority_%u_xon.nic", i);
918 ethtool_sprintf(&p, "tx_priority_%u_xoff.nic", i);
919 }
920 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
921 ethtool_sprintf(&p, "rx_priority_%u_xon.nic", i);
922 ethtool_sprintf(&p, "rx_priority_%u_xoff.nic", i);
923 }
924 break;
925 case ETH_SS_TEST:
926 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN);
927 break;
928 case ETH_SS_PRIV_FLAGS:
929 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++)
930 ethtool_sprintf(&p, ice_gstrings_priv_flags[i].name);
931 break;
932 default:
933 break;
934 }
935 }
936
ice_get_strings(struct net_device * netdev,u32 stringset,u8 * data)937 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
938 {
939 struct ice_netdev_priv *np = netdev_priv(netdev);
940
941 __ice_get_strings(netdev, stringset, data, np->vsi);
942 }
943
944 static int
ice_set_phys_id(struct net_device * netdev,enum ethtool_phys_id_state state)945 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
946 {
947 struct ice_netdev_priv *np = netdev_priv(netdev);
948 bool led_active;
949
950 switch (state) {
951 case ETHTOOL_ID_ACTIVE:
952 led_active = true;
953 break;
954 case ETHTOOL_ID_INACTIVE:
955 led_active = false;
956 break;
957 default:
958 return -EINVAL;
959 }
960
961 if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL))
962 return -EIO;
963
964 return 0;
965 }
966
967 /**
968 * ice_set_fec_cfg - Set link FEC options
969 * @netdev: network interface device structure
970 * @req_fec: FEC mode to configure
971 */
ice_set_fec_cfg(struct net_device * netdev,enum ice_fec_mode req_fec)972 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec)
973 {
974 struct ice_netdev_priv *np = netdev_priv(netdev);
975 struct ice_aqc_set_phy_cfg_data config = { 0 };
976 struct ice_vsi *vsi = np->vsi;
977 struct ice_port_info *pi;
978
979 pi = vsi->port_info;
980 if (!pi)
981 return -EOPNOTSUPP;
982
983 /* Changing the FEC parameters is not supported if not the PF VSI */
984 if (vsi->type != ICE_VSI_PF) {
985 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n");
986 return -EOPNOTSUPP;
987 }
988
989 /* Proceed only if requesting different FEC mode */
990 if (pi->phy.curr_user_fec_req == req_fec)
991 return 0;
992
993 /* Copy the current user PHY configuration. The current user PHY
994 * configuration is initialized during probe from PHY capabilities
995 * software mode, and updated on set PHY configuration.
996 */
997 memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config));
998
999 ice_cfg_phy_fec(pi, &config, req_fec);
1000 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
1001
1002 if (ice_aq_set_phy_cfg(pi->hw, pi, &config, NULL))
1003 return -EAGAIN;
1004
1005 /* Save requested FEC config */
1006 pi->phy.curr_user_fec_req = req_fec;
1007
1008 return 0;
1009 }
1010
1011 /**
1012 * ice_set_fecparam - Set FEC link options
1013 * @netdev: network interface device structure
1014 * @fecparam: Ethtool structure to retrieve FEC parameters
1015 */
1016 static int
ice_set_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1017 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1018 {
1019 struct ice_netdev_priv *np = netdev_priv(netdev);
1020 struct ice_vsi *vsi = np->vsi;
1021 enum ice_fec_mode fec;
1022
1023 switch (fecparam->fec) {
1024 case ETHTOOL_FEC_AUTO:
1025 fec = ICE_FEC_AUTO;
1026 break;
1027 case ETHTOOL_FEC_RS:
1028 fec = ICE_FEC_RS;
1029 break;
1030 case ETHTOOL_FEC_BASER:
1031 fec = ICE_FEC_BASER;
1032 break;
1033 case ETHTOOL_FEC_OFF:
1034 case ETHTOOL_FEC_NONE:
1035 fec = ICE_FEC_NONE;
1036 break;
1037 default:
1038 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n",
1039 fecparam->fec);
1040 return -EINVAL;
1041 }
1042
1043 return ice_set_fec_cfg(netdev, fec);
1044 }
1045
1046 /**
1047 * ice_get_fecparam - Get link FEC options
1048 * @netdev: network interface device structure
1049 * @fecparam: Ethtool structure to retrieve FEC parameters
1050 */
1051 static int
ice_get_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1052 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
1053 {
1054 struct ice_netdev_priv *np = netdev_priv(netdev);
1055 struct ice_aqc_get_phy_caps_data *caps;
1056 struct ice_link_status *link_info;
1057 struct ice_vsi *vsi = np->vsi;
1058 struct ice_port_info *pi;
1059 int err;
1060
1061 pi = vsi->port_info;
1062
1063 if (!pi)
1064 return -EOPNOTSUPP;
1065 link_info = &pi->phy.link_info;
1066
1067 /* Set FEC mode based on negotiated link info */
1068 switch (link_info->fec_info) {
1069 case ICE_AQ_LINK_25G_KR_FEC_EN:
1070 fecparam->active_fec = ETHTOOL_FEC_BASER;
1071 break;
1072 case ICE_AQ_LINK_25G_RS_528_FEC_EN:
1073 case ICE_AQ_LINK_25G_RS_544_FEC_EN:
1074 fecparam->active_fec = ETHTOOL_FEC_RS;
1075 break;
1076 default:
1077 fecparam->active_fec = ETHTOOL_FEC_OFF;
1078 break;
1079 }
1080
1081 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
1082 if (!caps)
1083 return -ENOMEM;
1084
1085 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
1086 caps, NULL);
1087 if (err)
1088 goto done;
1089
1090 /* Set supported/configured FEC modes based on PHY capability */
1091 if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC)
1092 fecparam->fec |= ETHTOOL_FEC_AUTO;
1093 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
1094 caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
1095 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN ||
1096 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
1097 fecparam->fec |= ETHTOOL_FEC_BASER;
1098 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
1099 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ ||
1100 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
1101 fecparam->fec |= ETHTOOL_FEC_RS;
1102 if (caps->link_fec_options == 0)
1103 fecparam->fec |= ETHTOOL_FEC_OFF;
1104
1105 done:
1106 kfree(caps);
1107 return err;
1108 }
1109
1110 /**
1111 * ice_nway_reset - restart autonegotiation
1112 * @netdev: network interface device structure
1113 */
ice_nway_reset(struct net_device * netdev)1114 static int ice_nway_reset(struct net_device *netdev)
1115 {
1116 struct ice_netdev_priv *np = netdev_priv(netdev);
1117 struct ice_vsi *vsi = np->vsi;
1118 int err;
1119
1120 /* If VSI state is up, then restart autoneg with link up */
1121 if (!test_bit(ICE_DOWN, vsi->back->state))
1122 err = ice_set_link(vsi, true);
1123 else
1124 err = ice_set_link(vsi, false);
1125
1126 return err;
1127 }
1128
1129 /**
1130 * ice_get_priv_flags - report device private flags
1131 * @netdev: network interface device structure
1132 *
1133 * The get string set count and the string set should be matched for each
1134 * flag returned. Add new strings for each flag to the ice_gstrings_priv_flags
1135 * array.
1136 *
1137 * Returns a u32 bitmap of flags.
1138 */
ice_get_priv_flags(struct net_device * netdev)1139 static u32 ice_get_priv_flags(struct net_device *netdev)
1140 {
1141 struct ice_netdev_priv *np = netdev_priv(netdev);
1142 struct ice_vsi *vsi = np->vsi;
1143 struct ice_pf *pf = vsi->back;
1144 u32 i, ret_flags = 0;
1145
1146 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1147 const struct ice_priv_flag *priv_flag;
1148
1149 priv_flag = &ice_gstrings_priv_flags[i];
1150
1151 if (test_bit(priv_flag->bitno, pf->flags))
1152 ret_flags |= BIT(i);
1153 }
1154
1155 return ret_flags;
1156 }
1157
1158 /**
1159 * ice_set_priv_flags - set private flags
1160 * @netdev: network interface device structure
1161 * @flags: bit flags to be set
1162 */
ice_set_priv_flags(struct net_device * netdev,u32 flags)1163 static int ice_set_priv_flags(struct net_device *netdev, u32 flags)
1164 {
1165 struct ice_netdev_priv *np = netdev_priv(netdev);
1166 DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS);
1167 DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS);
1168 struct ice_vsi *vsi = np->vsi;
1169 struct ice_pf *pf = vsi->back;
1170 struct device *dev;
1171 int ret = 0;
1172 u32 i;
1173
1174 if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE))
1175 return -EINVAL;
1176
1177 dev = ice_pf_to_dev(pf);
1178 set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1179
1180 bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS);
1181 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) {
1182 const struct ice_priv_flag *priv_flag;
1183
1184 priv_flag = &ice_gstrings_priv_flags[i];
1185
1186 if (flags & BIT(i))
1187 set_bit(priv_flag->bitno, pf->flags);
1188 else
1189 clear_bit(priv_flag->bitno, pf->flags);
1190 }
1191
1192 bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS);
1193
1194 /* Do not allow change to link-down-on-close when Total Port Shutdown
1195 * is enabled.
1196 */
1197 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, change_flags) &&
1198 test_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags)) {
1199 dev_err(dev, "Setting link-down-on-close not supported on this port\n");
1200 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags);
1201 ret = -EINVAL;
1202 goto ethtool_exit;
1203 }
1204
1205 if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) {
1206 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) {
1207 int status;
1208
1209 /* Disable FW LLDP engine */
1210 status = ice_cfg_lldp_mib_change(&pf->hw, false);
1211
1212 /* If unregistering for LLDP events fails, this is
1213 * not an error state, as there shouldn't be any
1214 * events to respond to.
1215 */
1216 if (status)
1217 dev_info(dev, "Failed to unreg for LLDP events\n");
1218
1219 /* The AQ call to stop the FW LLDP agent will generate
1220 * an error if the agent is already stopped.
1221 */
1222 status = ice_aq_stop_lldp(&pf->hw, true, true, NULL);
1223 if (status)
1224 dev_warn(dev, "Fail to stop LLDP agent\n");
1225 /* Use case for having the FW LLDP agent stopped
1226 * will likely not need DCB, so failure to init is
1227 * not a concern of ethtool
1228 */
1229 status = ice_init_pf_dcb(pf, true);
1230 if (status)
1231 dev_warn(dev, "Fail to init DCB\n");
1232
1233 pf->dcbx_cap &= ~DCB_CAP_DCBX_LLD_MANAGED;
1234 pf->dcbx_cap |= DCB_CAP_DCBX_HOST;
1235 } else {
1236 bool dcbx_agent_status;
1237 int status;
1238
1239 if (ice_get_pfc_mode(pf) == ICE_QOS_MODE_DSCP) {
1240 clear_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags);
1241 dev_err(dev, "QoS in L3 DSCP mode, FW Agent not allowed to start\n");
1242 ret = -EOPNOTSUPP;
1243 goto ethtool_exit;
1244 }
1245
1246 /* Remove rule to direct LLDP packets to default VSI.
1247 * The FW LLDP engine will now be consuming them.
1248 */
1249 ice_cfg_sw_lldp(vsi, false, false);
1250
1251 /* AQ command to start FW LLDP agent will return an
1252 * error if the agent is already started
1253 */
1254 status = ice_aq_start_lldp(&pf->hw, true, NULL);
1255 if (status)
1256 dev_warn(dev, "Fail to start LLDP Agent\n");
1257
1258 /* AQ command to start FW DCBX agent will fail if
1259 * the agent is already started
1260 */
1261 status = ice_aq_start_stop_dcbx(&pf->hw, true,
1262 &dcbx_agent_status,
1263 NULL);
1264 if (status)
1265 dev_dbg(dev, "Failed to start FW DCBX\n");
1266
1267 dev_info(dev, "FW DCBX agent is %s\n",
1268 dcbx_agent_status ? "ACTIVE" : "DISABLED");
1269
1270 /* Failure to configure MIB change or init DCB is not
1271 * relevant to ethtool. Print notification that
1272 * registration/init failed but do not return error
1273 * state to ethtool
1274 */
1275 status = ice_init_pf_dcb(pf, true);
1276 if (status)
1277 dev_dbg(dev, "Fail to init DCB\n");
1278
1279 /* Register for MIB change events */
1280 status = ice_cfg_lldp_mib_change(&pf->hw, true);
1281 if (status)
1282 dev_dbg(dev, "Fail to enable MIB change events\n");
1283
1284 pf->dcbx_cap &= ~DCB_CAP_DCBX_HOST;
1285 pf->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED;
1286
1287 ice_nway_reset(netdev);
1288 }
1289 }
1290 if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) {
1291 /* down and up VSI so that changes of Rx cfg are reflected. */
1292 ice_down_up(vsi);
1293 }
1294 /* don't allow modification of this flag when a single VF is in
1295 * promiscuous mode because it's not supported
1296 */
1297 if (test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, change_flags) &&
1298 ice_is_any_vf_in_unicast_promisc(pf)) {
1299 dev_err(dev, "Changing vf-true-promisc-support flag while VF(s) are in promiscuous mode not supported\n");
1300 /* toggle bit back to previous state */
1301 change_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags);
1302 ret = -EAGAIN;
1303 }
1304
1305 if (test_bit(ICE_FLAG_VF_VLAN_PRUNING, change_flags) &&
1306 ice_has_vfs(pf)) {
1307 dev_err(dev, "vf-vlan-pruning: VLAN pruning cannot be changed while VFs are active.\n");
1308 /* toggle bit back to previous state */
1309 change_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags);
1310 ret = -EOPNOTSUPP;
1311 }
1312 ethtool_exit:
1313 clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags);
1314 return ret;
1315 }
1316
ice_get_sset_count(struct net_device * netdev,int sset)1317 static int ice_get_sset_count(struct net_device *netdev, int sset)
1318 {
1319 switch (sset) {
1320 case ETH_SS_STATS:
1321 /* The number (and order) of strings reported *must* remain
1322 * constant for a given netdevice. This function must not
1323 * report a different number based on run time parameters
1324 * (such as the number of queues in use, or the setting of
1325 * a private ethtool flag). This is due to the nature of the
1326 * ethtool stats API.
1327 *
1328 * Userspace programs such as ethtool must make 3 separate
1329 * ioctl requests, one for size, one for the strings, and
1330 * finally one for the stats. Since these cross into
1331 * userspace, changes to the number or size could result in
1332 * undefined memory access or incorrect string<->value
1333 * correlations for statistics.
1334 *
1335 * Even if it appears to be safe, changes to the size or
1336 * order of strings will suffer from race conditions and are
1337 * not safe.
1338 */
1339 return ICE_ALL_STATS_LEN(netdev);
1340 case ETH_SS_TEST:
1341 return ICE_TEST_LEN;
1342 case ETH_SS_PRIV_FLAGS:
1343 return ICE_PRIV_FLAG_ARRAY_SIZE;
1344 default:
1345 return -EOPNOTSUPP;
1346 }
1347 }
1348
1349 static void
__ice_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats __always_unused * stats,u64 * data,struct ice_vsi * vsi)1350 __ice_get_ethtool_stats(struct net_device *netdev,
1351 struct ethtool_stats __always_unused *stats, u64 *data,
1352 struct ice_vsi *vsi)
1353 {
1354 struct ice_pf *pf = vsi->back;
1355 struct ice_tx_ring *tx_ring;
1356 struct ice_rx_ring *rx_ring;
1357 unsigned int j;
1358 int i = 0;
1359 char *p;
1360
1361 ice_update_pf_stats(pf);
1362 ice_update_vsi_stats(vsi);
1363
1364 for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
1365 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
1366 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
1367 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1368 }
1369
1370 if (ice_is_port_repr_netdev(netdev))
1371 return;
1372
1373 /* populate per queue stats */
1374 rcu_read_lock();
1375
1376 ice_for_each_alloc_txq(vsi, j) {
1377 tx_ring = READ_ONCE(vsi->tx_rings[j]);
1378 if (tx_ring) {
1379 data[i++] = tx_ring->stats.pkts;
1380 data[i++] = tx_ring->stats.bytes;
1381 } else {
1382 data[i++] = 0;
1383 data[i++] = 0;
1384 }
1385 }
1386
1387 ice_for_each_alloc_rxq(vsi, j) {
1388 rx_ring = READ_ONCE(vsi->rx_rings[j]);
1389 if (rx_ring) {
1390 data[i++] = rx_ring->stats.pkts;
1391 data[i++] = rx_ring->stats.bytes;
1392 } else {
1393 data[i++] = 0;
1394 data[i++] = 0;
1395 }
1396 }
1397
1398 rcu_read_unlock();
1399
1400 if (vsi->type != ICE_VSI_PF)
1401 return;
1402
1403 for (j = 0; j < ICE_PF_STATS_LEN; j++) {
1404 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
1405 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
1406 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1407 }
1408
1409 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1410 data[i++] = pf->stats.priority_xon_tx[j];
1411 data[i++] = pf->stats.priority_xoff_tx[j];
1412 }
1413
1414 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) {
1415 data[i++] = pf->stats.priority_xon_rx[j];
1416 data[i++] = pf->stats.priority_xoff_rx[j];
1417 }
1418 }
1419
1420 static void
ice_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats __always_unused * stats,u64 * data)1421 ice_get_ethtool_stats(struct net_device *netdev,
1422 struct ethtool_stats __always_unused *stats, u64 *data)
1423 {
1424 struct ice_netdev_priv *np = netdev_priv(netdev);
1425
1426 __ice_get_ethtool_stats(netdev, stats, data, np->vsi);
1427 }
1428
1429 #define ICE_PHY_TYPE_LOW_MASK_MIN_1G (ICE_PHY_TYPE_LOW_100BASE_TX | \
1430 ICE_PHY_TYPE_LOW_100M_SGMII)
1431
1432 #define ICE_PHY_TYPE_LOW_MASK_MIN_25G (ICE_PHY_TYPE_LOW_MASK_MIN_1G | \
1433 ICE_PHY_TYPE_LOW_1000BASE_T | \
1434 ICE_PHY_TYPE_LOW_1000BASE_SX | \
1435 ICE_PHY_TYPE_LOW_1000BASE_LX | \
1436 ICE_PHY_TYPE_LOW_1000BASE_KX | \
1437 ICE_PHY_TYPE_LOW_1G_SGMII | \
1438 ICE_PHY_TYPE_LOW_2500BASE_T | \
1439 ICE_PHY_TYPE_LOW_2500BASE_X | \
1440 ICE_PHY_TYPE_LOW_2500BASE_KX | \
1441 ICE_PHY_TYPE_LOW_5GBASE_T | \
1442 ICE_PHY_TYPE_LOW_5GBASE_KR | \
1443 ICE_PHY_TYPE_LOW_10GBASE_T | \
1444 ICE_PHY_TYPE_LOW_10G_SFI_DA | \
1445 ICE_PHY_TYPE_LOW_10GBASE_SR | \
1446 ICE_PHY_TYPE_LOW_10GBASE_LR | \
1447 ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 | \
1448 ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | \
1449 ICE_PHY_TYPE_LOW_10G_SFI_C2C)
1450
1451 #define ICE_PHY_TYPE_LOW_MASK_100G (ICE_PHY_TYPE_LOW_100GBASE_CR4 | \
1452 ICE_PHY_TYPE_LOW_100GBASE_SR4 | \
1453 ICE_PHY_TYPE_LOW_100GBASE_LR4 | \
1454 ICE_PHY_TYPE_LOW_100GBASE_KR4 | \
1455 ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | \
1456 ICE_PHY_TYPE_LOW_100G_CAUI4 | \
1457 ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | \
1458 ICE_PHY_TYPE_LOW_100G_AUI4 | \
1459 ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | \
1460 ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 | \
1461 ICE_PHY_TYPE_LOW_100GBASE_CP2 | \
1462 ICE_PHY_TYPE_LOW_100GBASE_SR2 | \
1463 ICE_PHY_TYPE_LOW_100GBASE_DR)
1464
1465 #define ICE_PHY_TYPE_HIGH_MASK_100G (ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4 | \
1466 ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |\
1467 ICE_PHY_TYPE_HIGH_100G_CAUI2 | \
1468 ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | \
1469 ICE_PHY_TYPE_HIGH_100G_AUI2)
1470
1471 /**
1472 * ice_mask_min_supported_speeds
1473 * @hw: pointer to the HW structure
1474 * @phy_types_high: PHY type high
1475 * @phy_types_low: PHY type low to apply minimum supported speeds mask
1476 *
1477 * Apply minimum supported speeds mask to PHY type low. These are the speeds
1478 * for ethtool supported link mode.
1479 */
1480 static void
ice_mask_min_supported_speeds(struct ice_hw * hw,u64 phy_types_high,u64 * phy_types_low)1481 ice_mask_min_supported_speeds(struct ice_hw *hw,
1482 u64 phy_types_high, u64 *phy_types_low)
1483 {
1484 /* if QSFP connection with 100G speed, minimum supported speed is 25G */
1485 if (*phy_types_low & ICE_PHY_TYPE_LOW_MASK_100G ||
1486 phy_types_high & ICE_PHY_TYPE_HIGH_MASK_100G)
1487 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_25G;
1488 else if (!ice_is_100m_speed_supported(hw))
1489 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_1G;
1490 }
1491
1492 #define ice_ethtool_advertise_link_mode(aq_link_speed, ethtool_link_mode) \
1493 do { \
1494 if (req_speeds & (aq_link_speed) || \
1495 (!req_speeds && \
1496 (advert_phy_type_lo & phy_type_mask_lo || \
1497 advert_phy_type_hi & phy_type_mask_hi))) \
1498 ethtool_link_ksettings_add_link_mode(ks, advertising,\
1499 ethtool_link_mode); \
1500 } while (0)
1501
1502 /**
1503 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
1504 * @netdev: network interface device structure
1505 * @ks: ethtool link ksettings struct to fill out
1506 */
1507 static void
ice_phy_type_to_ethtool(struct net_device * netdev,struct ethtool_link_ksettings * ks)1508 ice_phy_type_to_ethtool(struct net_device *netdev,
1509 struct ethtool_link_ksettings *ks)
1510 {
1511 struct ice_netdev_priv *np = netdev_priv(netdev);
1512 struct ice_vsi *vsi = np->vsi;
1513 struct ice_pf *pf = vsi->back;
1514 u64 advert_phy_type_lo = 0;
1515 u64 advert_phy_type_hi = 0;
1516 u64 phy_type_mask_lo = 0;
1517 u64 phy_type_mask_hi = 0;
1518 u64 phy_types_high = 0;
1519 u64 phy_types_low = 0;
1520 u16 req_speeds;
1521
1522 req_speeds = vsi->port_info->phy.link_info.req_speeds;
1523
1524 /* Check if lenient mode is supported and enabled, or in strict mode.
1525 *
1526 * In lenient mode the Supported link modes are the PHY types without
1527 * media. The Advertising link mode is either 1. the user requested
1528 * speed, 2. the override PHY mask, or 3. the PHY types with media.
1529 *
1530 * In strict mode Supported link mode are the PHY type with media,
1531 * and Advertising link modes are the media PHY type or the speed
1532 * requested by user.
1533 */
1534 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
1535 phy_types_low = le64_to_cpu(pf->nvm_phy_type_lo);
1536 phy_types_high = le64_to_cpu(pf->nvm_phy_type_hi);
1537
1538 ice_mask_min_supported_speeds(&pf->hw, phy_types_high,
1539 &phy_types_low);
1540 /* determine advertised modes based on link override only
1541 * if it's supported and if the FW doesn't abstract the
1542 * driver from having to account for link overrides
1543 */
1544 if (ice_fw_supports_link_override(&pf->hw) &&
1545 !ice_fw_supports_report_dflt_cfg(&pf->hw)) {
1546 struct ice_link_default_override_tlv *ldo;
1547
1548 ldo = &pf->link_dflt_override;
1549 /* If override enabled and PHY mask set, then
1550 * Advertising link mode is the intersection of the PHY
1551 * types without media and the override PHY mask.
1552 */
1553 if (ldo->options & ICE_LINK_OVERRIDE_EN &&
1554 (ldo->phy_type_low || ldo->phy_type_high)) {
1555 advert_phy_type_lo =
1556 le64_to_cpu(pf->nvm_phy_type_lo) &
1557 ldo->phy_type_low;
1558 advert_phy_type_hi =
1559 le64_to_cpu(pf->nvm_phy_type_hi) &
1560 ldo->phy_type_high;
1561 }
1562 }
1563 } else {
1564 /* strict mode */
1565 phy_types_low = vsi->port_info->phy.phy_type_low;
1566 phy_types_high = vsi->port_info->phy.phy_type_high;
1567 }
1568
1569 /* If Advertising link mode PHY type is not using override PHY type,
1570 * then use PHY type with media.
1571 */
1572 if (!advert_phy_type_lo && !advert_phy_type_hi) {
1573 advert_phy_type_lo = vsi->port_info->phy.phy_type_low;
1574 advert_phy_type_hi = vsi->port_info->phy.phy_type_high;
1575 }
1576
1577 ethtool_link_ksettings_zero_link_mode(ks, supported);
1578 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1579
1580 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100BASE_TX |
1581 ICE_PHY_TYPE_LOW_100M_SGMII;
1582 if (phy_types_low & phy_type_mask_lo) {
1583 ethtool_link_ksettings_add_link_mode(ks, supported,
1584 100baseT_Full);
1585
1586 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100MB,
1587 100baseT_Full);
1588 }
1589
1590 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_T |
1591 ICE_PHY_TYPE_LOW_1G_SGMII;
1592 if (phy_types_low & phy_type_mask_lo) {
1593 ethtool_link_ksettings_add_link_mode(ks, supported,
1594 1000baseT_Full);
1595 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1596 1000baseT_Full);
1597 }
1598
1599 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_KX;
1600 if (phy_types_low & phy_type_mask_lo) {
1601 ethtool_link_ksettings_add_link_mode(ks, supported,
1602 1000baseKX_Full);
1603 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1604 1000baseKX_Full);
1605 }
1606
1607 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_SX |
1608 ICE_PHY_TYPE_LOW_1000BASE_LX;
1609 if (phy_types_low & phy_type_mask_lo) {
1610 ethtool_link_ksettings_add_link_mode(ks, supported,
1611 1000baseX_Full);
1612 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB,
1613 1000baseX_Full);
1614 }
1615
1616 phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_T;
1617 if (phy_types_low & phy_type_mask_lo) {
1618 ethtool_link_ksettings_add_link_mode(ks, supported,
1619 2500baseT_Full);
1620 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
1621 2500baseT_Full);
1622 }
1623
1624 phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_X |
1625 ICE_PHY_TYPE_LOW_2500BASE_KX;
1626 if (phy_types_low & phy_type_mask_lo) {
1627 ethtool_link_ksettings_add_link_mode(ks, supported,
1628 2500baseX_Full);
1629 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB,
1630 2500baseX_Full);
1631 }
1632
1633 phy_type_mask_lo = ICE_PHY_TYPE_LOW_5GBASE_T |
1634 ICE_PHY_TYPE_LOW_5GBASE_KR;
1635 if (phy_types_low & phy_type_mask_lo) {
1636 ethtool_link_ksettings_add_link_mode(ks, supported,
1637 5000baseT_Full);
1638 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_5GB,
1639 5000baseT_Full);
1640 }
1641
1642 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_T |
1643 ICE_PHY_TYPE_LOW_10G_SFI_DA |
1644 ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC |
1645 ICE_PHY_TYPE_LOW_10G_SFI_C2C;
1646 if (phy_types_low & phy_type_mask_lo) {
1647 ethtool_link_ksettings_add_link_mode(ks, supported,
1648 10000baseT_Full);
1649 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1650 10000baseT_Full);
1651 }
1652
1653 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_KR_CR1;
1654 if (phy_types_low & phy_type_mask_lo) {
1655 ethtool_link_ksettings_add_link_mode(ks, supported,
1656 10000baseKR_Full);
1657 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1658 10000baseKR_Full);
1659 }
1660
1661 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_SR;
1662 if (phy_types_low & phy_type_mask_lo) {
1663 ethtool_link_ksettings_add_link_mode(ks, supported,
1664 10000baseSR_Full);
1665 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1666 10000baseSR_Full);
1667 }
1668
1669 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_LR;
1670 if (phy_types_low & phy_type_mask_lo) {
1671 ethtool_link_ksettings_add_link_mode(ks, supported,
1672 10000baseLR_Full);
1673 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB,
1674 10000baseLR_Full);
1675 }
1676
1677 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_T |
1678 ICE_PHY_TYPE_LOW_25GBASE_CR |
1679 ICE_PHY_TYPE_LOW_25GBASE_CR_S |
1680 ICE_PHY_TYPE_LOW_25GBASE_CR1 |
1681 ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC |
1682 ICE_PHY_TYPE_LOW_25G_AUI_C2C;
1683 if (phy_types_low & phy_type_mask_lo) {
1684 ethtool_link_ksettings_add_link_mode(ks, supported,
1685 25000baseCR_Full);
1686 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1687 25000baseCR_Full);
1688 }
1689
1690 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_SR |
1691 ICE_PHY_TYPE_LOW_25GBASE_LR;
1692 if (phy_types_low & phy_type_mask_lo) {
1693 ethtool_link_ksettings_add_link_mode(ks, supported,
1694 25000baseSR_Full);
1695 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1696 25000baseSR_Full);
1697 }
1698
1699 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_KR |
1700 ICE_PHY_TYPE_LOW_25GBASE_KR_S |
1701 ICE_PHY_TYPE_LOW_25GBASE_KR1;
1702 if (phy_types_low & phy_type_mask_lo) {
1703 ethtool_link_ksettings_add_link_mode(ks, supported,
1704 25000baseKR_Full);
1705 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB,
1706 25000baseKR_Full);
1707 }
1708
1709 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_KR4;
1710 if (phy_types_low & phy_type_mask_lo) {
1711 ethtool_link_ksettings_add_link_mode(ks, supported,
1712 40000baseKR4_Full);
1713 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1714 40000baseKR4_Full);
1715 }
1716
1717 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_CR4 |
1718 ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC |
1719 ICE_PHY_TYPE_LOW_40G_XLAUI;
1720 if (phy_types_low & phy_type_mask_lo) {
1721 ethtool_link_ksettings_add_link_mode(ks, supported,
1722 40000baseCR4_Full);
1723 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1724 40000baseCR4_Full);
1725 }
1726
1727 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_SR4;
1728 if (phy_types_low & phy_type_mask_lo) {
1729 ethtool_link_ksettings_add_link_mode(ks, supported,
1730 40000baseSR4_Full);
1731 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1732 40000baseSR4_Full);
1733 }
1734
1735 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_LR4;
1736 if (phy_types_low & phy_type_mask_lo) {
1737 ethtool_link_ksettings_add_link_mode(ks, supported,
1738 40000baseLR4_Full);
1739 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB,
1740 40000baseLR4_Full);
1741 }
1742
1743 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_CR2 |
1744 ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC |
1745 ICE_PHY_TYPE_LOW_50G_LAUI2 |
1746 ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC |
1747 ICE_PHY_TYPE_LOW_50G_AUI2 |
1748 ICE_PHY_TYPE_LOW_50GBASE_CP |
1749 ICE_PHY_TYPE_LOW_50GBASE_SR |
1750 ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC |
1751 ICE_PHY_TYPE_LOW_50G_AUI1;
1752 if (phy_types_low & phy_type_mask_lo) {
1753 ethtool_link_ksettings_add_link_mode(ks, supported,
1754 50000baseCR2_Full);
1755 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1756 50000baseCR2_Full);
1757 }
1758
1759 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_KR2 |
1760 ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4;
1761 if (phy_types_low & phy_type_mask_lo) {
1762 ethtool_link_ksettings_add_link_mode(ks, supported,
1763 50000baseKR2_Full);
1764 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1765 50000baseKR2_Full);
1766 }
1767
1768 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_SR2 |
1769 ICE_PHY_TYPE_LOW_50GBASE_LR2 |
1770 ICE_PHY_TYPE_LOW_50GBASE_FR |
1771 ICE_PHY_TYPE_LOW_50GBASE_LR;
1772 if (phy_types_low & phy_type_mask_lo) {
1773 ethtool_link_ksettings_add_link_mode(ks, supported,
1774 50000baseSR2_Full);
1775 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB,
1776 50000baseSR2_Full);
1777 }
1778
1779 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_CR4 |
1780 ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC |
1781 ICE_PHY_TYPE_LOW_100G_CAUI4 |
1782 ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC |
1783 ICE_PHY_TYPE_LOW_100G_AUI4 |
1784 ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 |
1785 ICE_PHY_TYPE_LOW_100GBASE_CP2;
1786 phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |
1787 ICE_PHY_TYPE_HIGH_100G_CAUI2 |
1788 ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC |
1789 ICE_PHY_TYPE_HIGH_100G_AUI2;
1790 if (phy_types_low & phy_type_mask_lo ||
1791 phy_types_high & phy_type_mask_hi) {
1792 ethtool_link_ksettings_add_link_mode(ks, supported,
1793 100000baseCR4_Full);
1794 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1795 100000baseCR4_Full);
1796 }
1797
1798 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_SR4 |
1799 ICE_PHY_TYPE_LOW_100GBASE_SR2;
1800 if (phy_types_low & phy_type_mask_lo) {
1801 ethtool_link_ksettings_add_link_mode(ks, supported,
1802 100000baseSR4_Full);
1803 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1804 100000baseSR4_Full);
1805 }
1806
1807 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_LR4 |
1808 ICE_PHY_TYPE_LOW_100GBASE_DR;
1809 if (phy_types_low & phy_type_mask_lo) {
1810 ethtool_link_ksettings_add_link_mode(ks, supported,
1811 100000baseLR4_ER4_Full);
1812 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1813 100000baseLR4_ER4_Full);
1814 }
1815
1816 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_KR4 |
1817 ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4;
1818 phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4;
1819 if (phy_types_low & phy_type_mask_lo ||
1820 phy_types_high & phy_type_mask_hi) {
1821 ethtool_link_ksettings_add_link_mode(ks, supported,
1822 100000baseKR4_Full);
1823 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB,
1824 100000baseKR4_Full);
1825 }
1826 }
1827
1828 #define TEST_SET_BITS_TIMEOUT 50
1829 #define TEST_SET_BITS_SLEEP_MAX 2000
1830 #define TEST_SET_BITS_SLEEP_MIN 1000
1831
1832 /**
1833 * ice_get_settings_link_up - Get Link settings for when link is up
1834 * @ks: ethtool ksettings to fill in
1835 * @netdev: network interface device structure
1836 */
1837 static void
ice_get_settings_link_up(struct ethtool_link_ksettings * ks,struct net_device * netdev)1838 ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
1839 struct net_device *netdev)
1840 {
1841 struct ice_netdev_priv *np = netdev_priv(netdev);
1842 struct ice_port_info *pi = np->vsi->port_info;
1843 struct ice_link_status *link_info;
1844 struct ice_vsi *vsi = np->vsi;
1845
1846 link_info = &vsi->port_info->phy.link_info;
1847
1848 /* Get supported and advertised settings from PHY ability with media */
1849 ice_phy_type_to_ethtool(netdev, ks);
1850
1851 switch (link_info->link_speed) {
1852 case ICE_AQ_LINK_SPEED_100GB:
1853 ks->base.speed = SPEED_100000;
1854 break;
1855 case ICE_AQ_LINK_SPEED_50GB:
1856 ks->base.speed = SPEED_50000;
1857 break;
1858 case ICE_AQ_LINK_SPEED_40GB:
1859 ks->base.speed = SPEED_40000;
1860 break;
1861 case ICE_AQ_LINK_SPEED_25GB:
1862 ks->base.speed = SPEED_25000;
1863 break;
1864 case ICE_AQ_LINK_SPEED_20GB:
1865 ks->base.speed = SPEED_20000;
1866 break;
1867 case ICE_AQ_LINK_SPEED_10GB:
1868 ks->base.speed = SPEED_10000;
1869 break;
1870 case ICE_AQ_LINK_SPEED_5GB:
1871 ks->base.speed = SPEED_5000;
1872 break;
1873 case ICE_AQ_LINK_SPEED_2500MB:
1874 ks->base.speed = SPEED_2500;
1875 break;
1876 case ICE_AQ_LINK_SPEED_1000MB:
1877 ks->base.speed = SPEED_1000;
1878 break;
1879 case ICE_AQ_LINK_SPEED_100MB:
1880 ks->base.speed = SPEED_100;
1881 break;
1882 default:
1883 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n",
1884 link_info->link_speed);
1885 break;
1886 }
1887 ks->base.duplex = DUPLEX_FULL;
1888
1889 if (link_info->an_info & ICE_AQ_AN_COMPLETED)
1890 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1891 Autoneg);
1892
1893 /* Set flow control negotiated Rx/Tx pause */
1894 switch (pi->fc.current_mode) {
1895 case ICE_FC_FULL:
1896 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1897 break;
1898 case ICE_FC_TX_PAUSE:
1899 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause);
1900 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1901 Asym_Pause);
1902 break;
1903 case ICE_FC_RX_PAUSE:
1904 ethtool_link_ksettings_add_link_mode(ks, lp_advertising,
1905 Asym_Pause);
1906 break;
1907 case ICE_FC_PFC:
1908 default:
1909 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause);
1910 ethtool_link_ksettings_del_link_mode(ks, lp_advertising,
1911 Asym_Pause);
1912 break;
1913 }
1914 }
1915
1916 /**
1917 * ice_get_settings_link_down - Get the Link settings when link is down
1918 * @ks: ethtool ksettings to fill in
1919 * @netdev: network interface device structure
1920 *
1921 * Reports link settings that can be determined when link is down
1922 */
1923 static void
ice_get_settings_link_down(struct ethtool_link_ksettings * ks,struct net_device * netdev)1924 ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
1925 struct net_device *netdev)
1926 {
1927 /* link is down and the driver needs to fall back on
1928 * supported PHY types to figure out what info to display
1929 */
1930 ice_phy_type_to_ethtool(netdev, ks);
1931
1932 /* With no link, speed and duplex are unknown */
1933 ks->base.speed = SPEED_UNKNOWN;
1934 ks->base.duplex = DUPLEX_UNKNOWN;
1935 }
1936
1937 /**
1938 * ice_get_link_ksettings - Get Link Speed and Duplex settings
1939 * @netdev: network interface device structure
1940 * @ks: ethtool ksettings
1941 *
1942 * Reports speed/duplex settings based on media_type
1943 */
1944 static int
ice_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * ks)1945 ice_get_link_ksettings(struct net_device *netdev,
1946 struct ethtool_link_ksettings *ks)
1947 {
1948 struct ice_netdev_priv *np = netdev_priv(netdev);
1949 struct ice_aqc_get_phy_caps_data *caps;
1950 struct ice_link_status *hw_link_info;
1951 struct ice_vsi *vsi = np->vsi;
1952 int err;
1953
1954 ethtool_link_ksettings_zero_link_mode(ks, supported);
1955 ethtool_link_ksettings_zero_link_mode(ks, advertising);
1956 ethtool_link_ksettings_zero_link_mode(ks, lp_advertising);
1957 hw_link_info = &vsi->port_info->phy.link_info;
1958
1959 /* set speed and duplex */
1960 if (hw_link_info->link_info & ICE_AQ_LINK_UP)
1961 ice_get_settings_link_up(ks, netdev);
1962 else
1963 ice_get_settings_link_down(ks, netdev);
1964
1965 /* set autoneg settings */
1966 ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
1967 AUTONEG_ENABLE : AUTONEG_DISABLE;
1968
1969 /* set media type settings */
1970 switch (vsi->port_info->phy.media_type) {
1971 case ICE_MEDIA_FIBER:
1972 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1973 ks->base.port = PORT_FIBRE;
1974 break;
1975 case ICE_MEDIA_BASET:
1976 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
1977 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
1978 ks->base.port = PORT_TP;
1979 break;
1980 case ICE_MEDIA_BACKPLANE:
1981 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
1982 ethtool_link_ksettings_add_link_mode(ks, advertising,
1983 Backplane);
1984 ks->base.port = PORT_NONE;
1985 break;
1986 case ICE_MEDIA_DA:
1987 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
1988 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
1989 ks->base.port = PORT_DA;
1990 break;
1991 default:
1992 ks->base.port = PORT_OTHER;
1993 break;
1994 }
1995
1996 /* flow control is symmetric and always supported */
1997 ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
1998
1999 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
2000 if (!caps)
2001 return -ENOMEM;
2002
2003 err = ice_aq_get_phy_caps(vsi->port_info, false,
2004 ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);
2005 if (err)
2006 goto done;
2007
2008 /* Set the advertised flow control based on the PHY capability */
2009 if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) &&
2010 (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) {
2011 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
2012 ethtool_link_ksettings_add_link_mode(ks, advertising,
2013 Asym_Pause);
2014 } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) {
2015 ethtool_link_ksettings_add_link_mode(ks, advertising,
2016 Asym_Pause);
2017 } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) {
2018 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
2019 ethtool_link_ksettings_add_link_mode(ks, advertising,
2020 Asym_Pause);
2021 } else {
2022 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
2023 ethtool_link_ksettings_del_link_mode(ks, advertising,
2024 Asym_Pause);
2025 }
2026
2027 /* Set advertised FEC modes based on PHY capability */
2028 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE);
2029
2030 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ ||
2031 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ)
2032 ethtool_link_ksettings_add_link_mode(ks, advertising,
2033 FEC_BASER);
2034 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
2035 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
2036 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
2037
2038 err = ice_aq_get_phy_caps(vsi->port_info, false,
2039 ICE_AQC_REPORT_TOPO_CAP_MEDIA, caps, NULL);
2040 if (err)
2041 goto done;
2042
2043 /* Set supported FEC modes based on PHY capability */
2044 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE);
2045
2046 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN ||
2047 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN)
2048 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
2049 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN)
2050 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
2051
2052 /* Set supported and advertised autoneg */
2053 if (ice_is_phy_caps_an_enabled(caps)) {
2054 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
2055 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
2056 }
2057
2058 done:
2059 kfree(caps);
2060 return err;
2061 }
2062
2063 /**
2064 * ice_ksettings_find_adv_link_speed - Find advertising link speed
2065 * @ks: ethtool ksettings
2066 */
2067 static u16
ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings * ks)2068 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
2069 {
2070 u16 adv_link_speed = 0;
2071
2072 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2073 100baseT_Full))
2074 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
2075 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2076 1000baseX_Full))
2077 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2078 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2079 1000baseT_Full) ||
2080 ethtool_link_ksettings_test_link_mode(ks, advertising,
2081 1000baseKX_Full))
2082 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
2083 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2084 2500baseT_Full))
2085 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2086 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2087 2500baseX_Full))
2088 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
2089 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2090 5000baseT_Full))
2091 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
2092 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2093 10000baseT_Full) ||
2094 ethtool_link_ksettings_test_link_mode(ks, advertising,
2095 10000baseKR_Full))
2096 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2097 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2098 10000baseSR_Full) ||
2099 ethtool_link_ksettings_test_link_mode(ks, advertising,
2100 10000baseLR_Full))
2101 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
2102 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2103 25000baseCR_Full) ||
2104 ethtool_link_ksettings_test_link_mode(ks, advertising,
2105 25000baseSR_Full) ||
2106 ethtool_link_ksettings_test_link_mode(ks, advertising,
2107 25000baseKR_Full))
2108 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
2109 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2110 40000baseCR4_Full) ||
2111 ethtool_link_ksettings_test_link_mode(ks, advertising,
2112 40000baseSR4_Full) ||
2113 ethtool_link_ksettings_test_link_mode(ks, advertising,
2114 40000baseLR4_Full) ||
2115 ethtool_link_ksettings_test_link_mode(ks, advertising,
2116 40000baseKR4_Full))
2117 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;
2118 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2119 50000baseCR2_Full) ||
2120 ethtool_link_ksettings_test_link_mode(ks, advertising,
2121 50000baseKR2_Full))
2122 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2123 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2124 50000baseSR2_Full))
2125 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB;
2126 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2127 100000baseCR4_Full) ||
2128 ethtool_link_ksettings_test_link_mode(ks, advertising,
2129 100000baseSR4_Full) ||
2130 ethtool_link_ksettings_test_link_mode(ks, advertising,
2131 100000baseLR4_ER4_Full) ||
2132 ethtool_link_ksettings_test_link_mode(ks, advertising,
2133 100000baseKR4_Full))
2134 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB;
2135
2136 return adv_link_speed;
2137 }
2138
2139 /**
2140 * ice_setup_autoneg
2141 * @p: port info
2142 * @ks: ethtool_link_ksettings
2143 * @config: configuration that will be sent down to FW
2144 * @autoneg_enabled: autonegotiation is enabled or not
2145 * @autoneg_changed: will there a change in autonegotiation
2146 * @netdev: network interface device structure
2147 *
2148 * Setup PHY autonegotiation feature
2149 */
2150 static int
ice_setup_autoneg(struct ice_port_info * p,struct ethtool_link_ksettings * ks,struct ice_aqc_set_phy_cfg_data * config,u8 autoneg_enabled,u8 * autoneg_changed,struct net_device * netdev)2151 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
2152 struct ice_aqc_set_phy_cfg_data *config,
2153 u8 autoneg_enabled, u8 *autoneg_changed,
2154 struct net_device *netdev)
2155 {
2156 int err = 0;
2157
2158 *autoneg_changed = 0;
2159
2160 /* Check autoneg */
2161 if (autoneg_enabled == AUTONEG_ENABLE) {
2162 /* If autoneg was not already enabled */
2163 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
2164 /* If autoneg is not supported, return error */
2165 if (!ethtool_link_ksettings_test_link_mode(ks,
2166 supported,
2167 Autoneg)) {
2168 netdev_info(netdev, "Autoneg not supported on this phy.\n");
2169 err = -EINVAL;
2170 } else {
2171 /* Autoneg is allowed to change */
2172 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2173 *autoneg_changed = 1;
2174 }
2175 }
2176 } else {
2177 /* If autoneg is currently enabled */
2178 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
2179 /* If autoneg is supported 10GBASE_T is the only PHY
2180 * that can disable it, so otherwise return error
2181 */
2182 if (ethtool_link_ksettings_test_link_mode(ks,
2183 supported,
2184 Autoneg)) {
2185 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
2186 err = -EINVAL;
2187 } else {
2188 /* Autoneg is allowed to change */
2189 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2190 *autoneg_changed = 1;
2191 }
2192 }
2193 }
2194
2195 return err;
2196 }
2197
2198 /**
2199 * ice_set_phy_type_from_speed - set phy_types based on speeds
2200 * and advertised modes
2201 * @ks: ethtool link ksettings struct
2202 * @phy_type_low: pointer to the lower part of phy_type
2203 * @phy_type_high: pointer to the higher part of phy_type
2204 * @adv_link_speed: targeted link speeds bitmap
2205 */
2206 static void
ice_set_phy_type_from_speed(const struct ethtool_link_ksettings * ks,u64 * phy_type_low,u64 * phy_type_high,u16 adv_link_speed)2207 ice_set_phy_type_from_speed(const struct ethtool_link_ksettings *ks,
2208 u64 *phy_type_low, u64 *phy_type_high,
2209 u16 adv_link_speed)
2210 {
2211 /* Handle 1000M speed in a special way because ice_update_phy_type
2212 * enables all link modes, but having mixed copper and optical
2213 * standards is not supported.
2214 */
2215 adv_link_speed &= ~ICE_AQ_LINK_SPEED_1000MB;
2216
2217 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2218 1000baseT_Full))
2219 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_T |
2220 ICE_PHY_TYPE_LOW_1G_SGMII;
2221
2222 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2223 1000baseKX_Full))
2224 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_KX;
2225
2226 if (ethtool_link_ksettings_test_link_mode(ks, advertising,
2227 1000baseX_Full))
2228 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_SX |
2229 ICE_PHY_TYPE_LOW_1000BASE_LX;
2230
2231 ice_update_phy_type(phy_type_low, phy_type_high, adv_link_speed);
2232 }
2233
2234 /**
2235 * ice_set_link_ksettings - Set Speed and Duplex
2236 * @netdev: network interface device structure
2237 * @ks: ethtool ksettings
2238 *
2239 * Set speed/duplex per media_types advertised/forced
2240 */
2241 static int
ice_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * ks)2242 ice_set_link_ksettings(struct net_device *netdev,
2243 const struct ethtool_link_ksettings *ks)
2244 {
2245 struct ice_netdev_priv *np = netdev_priv(netdev);
2246 u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT;
2247 struct ethtool_link_ksettings copy_ks = *ks;
2248 struct ethtool_link_ksettings safe_ks = {};
2249 struct ice_aqc_get_phy_caps_data *phy_caps;
2250 struct ice_aqc_set_phy_cfg_data config;
2251 u16 adv_link_speed, curr_link_speed;
2252 struct ice_pf *pf = np->vsi->back;
2253 struct ice_port_info *pi;
2254 u8 autoneg_changed = 0;
2255 u64 phy_type_high = 0;
2256 u64 phy_type_low = 0;
2257 bool linkup;
2258 int err;
2259
2260 pi = np->vsi->port_info;
2261
2262 if (!pi)
2263 return -EIO;
2264
2265 if (pi->phy.media_type != ICE_MEDIA_BASET &&
2266 pi->phy.media_type != ICE_MEDIA_FIBER &&
2267 pi->phy.media_type != ICE_MEDIA_BACKPLANE &&
2268 pi->phy.media_type != ICE_MEDIA_DA &&
2269 pi->phy.link_info.link_info & ICE_AQ_LINK_UP)
2270 return -EOPNOTSUPP;
2271
2272 phy_caps = kzalloc(sizeof(*phy_caps), GFP_KERNEL);
2273 if (!phy_caps)
2274 return -ENOMEM;
2275
2276 /* Get the PHY capabilities based on media */
2277 if (ice_fw_supports_report_dflt_cfg(pi->hw))
2278 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG,
2279 phy_caps, NULL);
2280 else
2281 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
2282 phy_caps, NULL);
2283 if (err)
2284 goto done;
2285
2286 /* save autoneg out of ksettings */
2287 autoneg = copy_ks.base.autoneg;
2288
2289 /* Get link modes supported by hardware.*/
2290 ice_phy_type_to_ethtool(netdev, &safe_ks);
2291
2292 /* and check against modes requested by user.
2293 * Return an error if unsupported mode was set.
2294 */
2295 if (!bitmap_subset(copy_ks.link_modes.advertising,
2296 safe_ks.link_modes.supported,
2297 __ETHTOOL_LINK_MODE_MASK_NBITS)) {
2298 if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags))
2299 netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
2300 err = -EOPNOTSUPP;
2301 goto done;
2302 }
2303
2304 /* get our own copy of the bits to check against */
2305 memset(&safe_ks, 0, sizeof(safe_ks));
2306 safe_ks.base.cmd = copy_ks.base.cmd;
2307 safe_ks.base.link_mode_masks_nwords =
2308 copy_ks.base.link_mode_masks_nwords;
2309 ice_get_link_ksettings(netdev, &safe_ks);
2310
2311 /* set autoneg back to what it currently is */
2312 copy_ks.base.autoneg = safe_ks.base.autoneg;
2313 /* we don't compare the speed */
2314 copy_ks.base.speed = safe_ks.base.speed;
2315
2316 /* If copy_ks.base and safe_ks.base are not the same now, then they are
2317 * trying to set something that we do not support.
2318 */
2319 if (memcmp(©_ks.base, &safe_ks.base, sizeof(copy_ks.base))) {
2320 err = -EOPNOTSUPP;
2321 goto done;
2322 }
2323
2324 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) {
2325 timeout--;
2326 if (!timeout) {
2327 err = -EBUSY;
2328 goto done;
2329 }
2330 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
2331 }
2332
2333 /* Copy the current user PHY configuration. The current user PHY
2334 * configuration is initialized during probe from PHY capabilities
2335 * software mode, and updated on set PHY configuration.
2336 */
2337 config = pi->phy.curr_user_phy_cfg;
2338
2339 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
2340
2341 /* Check autoneg */
2342 err = ice_setup_autoneg(pi, &safe_ks, &config, autoneg, &autoneg_changed,
2343 netdev);
2344
2345 if (err)
2346 goto done;
2347
2348 /* Call to get the current link speed */
2349 pi->phy.get_link_info = true;
2350 err = ice_get_link_status(pi, &linkup);
2351 if (err)
2352 goto done;
2353
2354 curr_link_speed = pi->phy.curr_user_speed_req;
2355 adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
2356
2357 /* If speed didn't get set, set it to what it currently is.
2358 * This is needed because if advertise is 0 (as it is when autoneg
2359 * is disabled) then speed won't get set.
2360 */
2361 if (!adv_link_speed)
2362 adv_link_speed = curr_link_speed;
2363
2364 /* Convert the advertise link speeds to their corresponded PHY_TYPE */
2365 ice_set_phy_type_from_speed(ks, &phy_type_low, &phy_type_high,
2366 adv_link_speed);
2367
2368 if (!autoneg_changed && adv_link_speed == curr_link_speed) {
2369 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
2370 goto done;
2371 }
2372
2373 /* save the requested speeds */
2374 pi->phy.link_info.req_speeds = adv_link_speed;
2375
2376 /* set link and auto negotiation so changes take effect */
2377 config.caps |= ICE_AQ_PHY_ENA_LINK;
2378
2379 /* check if there is a PHY type for the requested advertised speed */
2380 if (!(phy_type_low || phy_type_high)) {
2381 netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
2382 err = -EOPNOTSUPP;
2383 goto done;
2384 }
2385
2386 /* intersect requested advertised speed PHY types with media PHY types
2387 * for set PHY configuration
2388 */
2389 config.phy_type_high = cpu_to_le64(phy_type_high) &
2390 phy_caps->phy_type_high;
2391 config.phy_type_low = cpu_to_le64(phy_type_low) &
2392 phy_caps->phy_type_low;
2393
2394 if (!(config.phy_type_high || config.phy_type_low)) {
2395 /* If there is no intersection and lenient mode is enabled, then
2396 * intersect the requested advertised speed with NVM media type
2397 * PHY types.
2398 */
2399 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) {
2400 config.phy_type_high = cpu_to_le64(phy_type_high) &
2401 pf->nvm_phy_type_hi;
2402 config.phy_type_low = cpu_to_le64(phy_type_low) &
2403 pf->nvm_phy_type_lo;
2404 } else {
2405 netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n");
2406 err = -EOPNOTSUPP;
2407 goto done;
2408 }
2409 }
2410
2411 /* If link is up put link down */
2412 if (pi->phy.link_info.link_info & ICE_AQ_LINK_UP) {
2413 /* Tell the OS link is going down, the link will go
2414 * back up when fw says it is ready asynchronously
2415 */
2416 ice_print_link_msg(np->vsi, false);
2417 netif_carrier_off(netdev);
2418 netif_tx_stop_all_queues(netdev);
2419 }
2420
2421 /* make the aq call */
2422 err = ice_aq_set_phy_cfg(&pf->hw, pi, &config, NULL);
2423 if (err) {
2424 netdev_info(netdev, "Set phy config failed,\n");
2425 goto done;
2426 }
2427
2428 /* Save speed request */
2429 pi->phy.curr_user_speed_req = adv_link_speed;
2430 done:
2431 kfree(phy_caps);
2432 clear_bit(ICE_CFG_BUSY, pf->state);
2433
2434 return err;
2435 }
2436
2437 /**
2438 * ice_parse_hdrs - parses headers from RSS hash input
2439 * @nfc: ethtool rxnfc command
2440 *
2441 * This function parses the rxnfc command and returns intended
2442 * header types for RSS configuration
2443 */
ice_parse_hdrs(struct ethtool_rxnfc * nfc)2444 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc)
2445 {
2446 u32 hdrs = ICE_FLOW_SEG_HDR_NONE;
2447
2448 switch (nfc->flow_type) {
2449 case TCP_V4_FLOW:
2450 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4;
2451 break;
2452 case UDP_V4_FLOW:
2453 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4;
2454 break;
2455 case SCTP_V4_FLOW:
2456 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4;
2457 break;
2458 case TCP_V6_FLOW:
2459 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6;
2460 break;
2461 case UDP_V6_FLOW:
2462 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6;
2463 break;
2464 case SCTP_V6_FLOW:
2465 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6;
2466 break;
2467 default:
2468 break;
2469 }
2470 return hdrs;
2471 }
2472
2473 #define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)
2474 #define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)
2475 #define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)
2476 #define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)
2477 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)
2478 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)
2479 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)
2480 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)
2481 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \
2482 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)
2483 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \
2484 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)
2485
2486 /**
2487 * ice_parse_hash_flds - parses hash fields from RSS hash input
2488 * @nfc: ethtool rxnfc command
2489 *
2490 * This function parses the rxnfc command and returns intended
2491 * hash fields for RSS configuration
2492 */
ice_parse_hash_flds(struct ethtool_rxnfc * nfc)2493 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc)
2494 {
2495 u64 hfld = ICE_HASH_INVALID;
2496
2497 if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) {
2498 switch (nfc->flow_type) {
2499 case TCP_V4_FLOW:
2500 case UDP_V4_FLOW:
2501 case SCTP_V4_FLOW:
2502 if (nfc->data & RXH_IP_SRC)
2503 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA;
2504 if (nfc->data & RXH_IP_DST)
2505 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA;
2506 break;
2507 case TCP_V6_FLOW:
2508 case UDP_V6_FLOW:
2509 case SCTP_V6_FLOW:
2510 if (nfc->data & RXH_IP_SRC)
2511 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA;
2512 if (nfc->data & RXH_IP_DST)
2513 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA;
2514 break;
2515 default:
2516 break;
2517 }
2518 }
2519
2520 if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) {
2521 switch (nfc->flow_type) {
2522 case TCP_V4_FLOW:
2523 case TCP_V6_FLOW:
2524 if (nfc->data & RXH_L4_B_0_1)
2525 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT;
2526 if (nfc->data & RXH_L4_B_2_3)
2527 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT;
2528 break;
2529 case UDP_V4_FLOW:
2530 case UDP_V6_FLOW:
2531 if (nfc->data & RXH_L4_B_0_1)
2532 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT;
2533 if (nfc->data & RXH_L4_B_2_3)
2534 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT;
2535 break;
2536 case SCTP_V4_FLOW:
2537 case SCTP_V6_FLOW:
2538 if (nfc->data & RXH_L4_B_0_1)
2539 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT;
2540 if (nfc->data & RXH_L4_B_2_3)
2541 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT;
2542 break;
2543 default:
2544 break;
2545 }
2546 }
2547
2548 return hfld;
2549 }
2550
2551 /**
2552 * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2553 * @vsi: the VSI being configured
2554 * @nfc: ethtool rxnfc command
2555 *
2556 * Returns Success if the flow input set is supported.
2557 */
2558 static int
ice_set_rss_hash_opt(struct ice_vsi * vsi,struct ethtool_rxnfc * nfc)2559 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2560 {
2561 struct ice_pf *pf = vsi->back;
2562 struct device *dev;
2563 u64 hashed_flds;
2564 int status;
2565 u32 hdrs;
2566
2567 dev = ice_pf_to_dev(pf);
2568 if (ice_is_safe_mode(pf)) {
2569 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2570 vsi->vsi_num);
2571 return -EINVAL;
2572 }
2573
2574 hashed_flds = ice_parse_hash_flds(nfc);
2575 if (hashed_flds == ICE_HASH_INVALID) {
2576 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n",
2577 vsi->vsi_num);
2578 return -EINVAL;
2579 }
2580
2581 hdrs = ice_parse_hdrs(nfc);
2582 if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2583 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2584 vsi->vsi_num);
2585 return -EINVAL;
2586 }
2587
2588 status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs);
2589 if (status) {
2590 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n",
2591 vsi->vsi_num, status);
2592 return status;
2593 }
2594
2595 return 0;
2596 }
2597
2598 /**
2599 * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type
2600 * @vsi: the VSI being configured
2601 * @nfc: ethtool rxnfc command
2602 */
2603 static void
ice_get_rss_hash_opt(struct ice_vsi * vsi,struct ethtool_rxnfc * nfc)2604 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc)
2605 {
2606 struct ice_pf *pf = vsi->back;
2607 struct device *dev;
2608 u64 hash_flds;
2609 u32 hdrs;
2610
2611 dev = ice_pf_to_dev(pf);
2612
2613 nfc->data = 0;
2614 if (ice_is_safe_mode(pf)) {
2615 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n",
2616 vsi->vsi_num);
2617 return;
2618 }
2619
2620 hdrs = ice_parse_hdrs(nfc);
2621 if (hdrs == ICE_FLOW_SEG_HDR_NONE) {
2622 dev_dbg(dev, "Header type is not valid, vsi num = %d\n",
2623 vsi->vsi_num);
2624 return;
2625 }
2626
2627 hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs);
2628 if (hash_flds == ICE_HASH_INVALID) {
2629 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n",
2630 vsi->vsi_num);
2631 return;
2632 }
2633
2634 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA ||
2635 hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA)
2636 nfc->data |= (u64)RXH_IP_SRC;
2637
2638 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA ||
2639 hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA)
2640 nfc->data |= (u64)RXH_IP_DST;
2641
2642 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT ||
2643 hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT ||
2644 hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT)
2645 nfc->data |= (u64)RXH_L4_B_0_1;
2646
2647 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT ||
2648 hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT ||
2649 hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT)
2650 nfc->data |= (u64)RXH_L4_B_2_3;
2651 }
2652
2653 /**
2654 * ice_set_rxnfc - command to set Rx flow rules.
2655 * @netdev: network interface device structure
2656 * @cmd: ethtool rxnfc command
2657 *
2658 * Returns 0 for success and negative values for errors
2659 */
ice_set_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * cmd)2660 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2661 {
2662 struct ice_netdev_priv *np = netdev_priv(netdev);
2663 struct ice_vsi *vsi = np->vsi;
2664
2665 switch (cmd->cmd) {
2666 case ETHTOOL_SRXCLSRLINS:
2667 return ice_add_fdir_ethtool(vsi, cmd);
2668 case ETHTOOL_SRXCLSRLDEL:
2669 return ice_del_fdir_ethtool(vsi, cmd);
2670 case ETHTOOL_SRXFH:
2671 return ice_set_rss_hash_opt(vsi, cmd);
2672 default:
2673 break;
2674 }
2675 return -EOPNOTSUPP;
2676 }
2677
2678 /**
2679 * ice_get_rxnfc - command to get Rx flow classification rules
2680 * @netdev: network interface device structure
2681 * @cmd: ethtool rxnfc command
2682 * @rule_locs: buffer to rturn Rx flow classification rules
2683 *
2684 * Returns Success if the command is supported.
2685 */
2686 static int
ice_get_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * cmd,u32 __always_unused * rule_locs)2687 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2688 u32 __always_unused *rule_locs)
2689 {
2690 struct ice_netdev_priv *np = netdev_priv(netdev);
2691 struct ice_vsi *vsi = np->vsi;
2692 int ret = -EOPNOTSUPP;
2693 struct ice_hw *hw;
2694
2695 hw = &vsi->back->hw;
2696
2697 switch (cmd->cmd) {
2698 case ETHTOOL_GRXRINGS:
2699 cmd->data = vsi->rss_size;
2700 ret = 0;
2701 break;
2702 case ETHTOOL_GRXCLSRLCNT:
2703 cmd->rule_cnt = hw->fdir_active_fltr;
2704 /* report total rule count */
2705 cmd->data = ice_get_fdir_cnt_all(hw);
2706 ret = 0;
2707 break;
2708 case ETHTOOL_GRXCLSRULE:
2709 ret = ice_get_ethtool_fdir_entry(hw, cmd);
2710 break;
2711 case ETHTOOL_GRXCLSRLALL:
2712 ret = ice_get_fdir_fltr_ids(hw, cmd, (u32 *)rule_locs);
2713 break;
2714 case ETHTOOL_GRXFH:
2715 ice_get_rss_hash_opt(vsi, cmd);
2716 ret = 0;
2717 break;
2718 default:
2719 break;
2720 }
2721
2722 return ret;
2723 }
2724
2725 static void
ice_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)2726 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring,
2727 struct kernel_ethtool_ringparam *kernel_ring,
2728 struct netlink_ext_ack *extack)
2729 {
2730 struct ice_netdev_priv *np = netdev_priv(netdev);
2731 struct ice_vsi *vsi = np->vsi;
2732
2733 ring->rx_max_pending = ICE_MAX_NUM_DESC;
2734 ring->tx_max_pending = ICE_MAX_NUM_DESC;
2735 ring->rx_pending = vsi->rx_rings[0]->count;
2736 ring->tx_pending = vsi->tx_rings[0]->count;
2737
2738 /* Rx mini and jumbo rings are not supported */
2739 ring->rx_mini_max_pending = 0;
2740 ring->rx_jumbo_max_pending = 0;
2741 ring->rx_mini_pending = 0;
2742 ring->rx_jumbo_pending = 0;
2743 }
2744
2745 static int
ice_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)2746 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring,
2747 struct kernel_ethtool_ringparam *kernel_ring,
2748 struct netlink_ext_ack *extack)
2749 {
2750 struct ice_netdev_priv *np = netdev_priv(netdev);
2751 struct ice_tx_ring *xdp_rings = NULL;
2752 struct ice_tx_ring *tx_rings = NULL;
2753 struct ice_rx_ring *rx_rings = NULL;
2754 struct ice_vsi *vsi = np->vsi;
2755 struct ice_pf *pf = vsi->back;
2756 int i, timeout = 50, err = 0;
2757 u16 new_rx_cnt, new_tx_cnt;
2758
2759 if (ring->tx_pending > ICE_MAX_NUM_DESC ||
2760 ring->tx_pending < ICE_MIN_NUM_DESC ||
2761 ring->rx_pending > ICE_MAX_NUM_DESC ||
2762 ring->rx_pending < ICE_MIN_NUM_DESC) {
2763 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
2764 ring->tx_pending, ring->rx_pending,
2765 ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
2766 ICE_REQ_DESC_MULTIPLE);
2767 return -EINVAL;
2768 }
2769
2770 new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
2771 if (new_tx_cnt != ring->tx_pending)
2772 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n",
2773 new_tx_cnt);
2774 new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
2775 if (new_rx_cnt != ring->rx_pending)
2776 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n",
2777 new_rx_cnt);
2778
2779 /* if nothing to do return success */
2780 if (new_tx_cnt == vsi->tx_rings[0]->count &&
2781 new_rx_cnt == vsi->rx_rings[0]->count) {
2782 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
2783 return 0;
2784 }
2785
2786 /* If there is a AF_XDP UMEM attached to any of Rx rings,
2787 * disallow changing the number of descriptors -- regardless
2788 * if the netdev is running or not.
2789 */
2790 if (ice_xsk_any_rx_ring_ena(vsi))
2791 return -EBUSY;
2792
2793 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) {
2794 timeout--;
2795 if (!timeout)
2796 return -EBUSY;
2797 usleep_range(1000, 2000);
2798 }
2799
2800 /* set for the next time the netdev is started */
2801 if (!netif_running(vsi->netdev)) {
2802 ice_for_each_alloc_txq(vsi, i)
2803 vsi->tx_rings[i]->count = new_tx_cnt;
2804 ice_for_each_alloc_rxq(vsi, i)
2805 vsi->rx_rings[i]->count = new_rx_cnt;
2806 if (ice_is_xdp_ena_vsi(vsi))
2807 ice_for_each_xdp_txq(vsi, i)
2808 vsi->xdp_rings[i]->count = new_tx_cnt;
2809 vsi->num_tx_desc = (u16)new_tx_cnt;
2810 vsi->num_rx_desc = (u16)new_rx_cnt;
2811 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
2812 goto done;
2813 }
2814
2815 if (new_tx_cnt == vsi->tx_rings[0]->count)
2816 goto process_rx;
2817
2818 /* alloc updated Tx resources */
2819 netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
2820 vsi->tx_rings[0]->count, new_tx_cnt);
2821
2822 tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL);
2823 if (!tx_rings) {
2824 err = -ENOMEM;
2825 goto done;
2826 }
2827
2828 ice_for_each_txq(vsi, i) {
2829 /* clone ring and setup updated count */
2830 tx_rings[i] = *vsi->tx_rings[i];
2831 tx_rings[i].count = new_tx_cnt;
2832 tx_rings[i].desc = NULL;
2833 tx_rings[i].tx_buf = NULL;
2834 tx_rings[i].tx_tstamps = &pf->ptp.port.tx;
2835 err = ice_setup_tx_ring(&tx_rings[i]);
2836 if (err) {
2837 while (i--)
2838 ice_clean_tx_ring(&tx_rings[i]);
2839 kfree(tx_rings);
2840 goto done;
2841 }
2842 }
2843
2844 if (!ice_is_xdp_ena_vsi(vsi))
2845 goto process_rx;
2846
2847 /* alloc updated XDP resources */
2848 netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n",
2849 vsi->xdp_rings[0]->count, new_tx_cnt);
2850
2851 xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL);
2852 if (!xdp_rings) {
2853 err = -ENOMEM;
2854 goto free_tx;
2855 }
2856
2857 ice_for_each_xdp_txq(vsi, i) {
2858 /* clone ring and setup updated count */
2859 xdp_rings[i] = *vsi->xdp_rings[i];
2860 xdp_rings[i].count = new_tx_cnt;
2861 xdp_rings[i].next_dd = ICE_RING_QUARTER(&xdp_rings[i]) - 1;
2862 xdp_rings[i].next_rs = ICE_RING_QUARTER(&xdp_rings[i]) - 1;
2863 xdp_rings[i].desc = NULL;
2864 xdp_rings[i].tx_buf = NULL;
2865 err = ice_setup_tx_ring(&xdp_rings[i]);
2866 if (err) {
2867 while (i--)
2868 ice_clean_tx_ring(&xdp_rings[i]);
2869 kfree(xdp_rings);
2870 goto free_tx;
2871 }
2872 ice_set_ring_xdp(&xdp_rings[i]);
2873 }
2874
2875 process_rx:
2876 if (new_rx_cnt == vsi->rx_rings[0]->count)
2877 goto process_link;
2878
2879 /* alloc updated Rx resources */
2880 netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
2881 vsi->rx_rings[0]->count, new_rx_cnt);
2882
2883 rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL);
2884 if (!rx_rings) {
2885 err = -ENOMEM;
2886 goto done;
2887 }
2888
2889 ice_for_each_rxq(vsi, i) {
2890 /* clone ring and setup updated count */
2891 rx_rings[i] = *vsi->rx_rings[i];
2892 rx_rings[i].count = new_rx_cnt;
2893 rx_rings[i].cached_phctime = pf->ptp.cached_phc_time;
2894 rx_rings[i].desc = NULL;
2895 rx_rings[i].rx_buf = NULL;
2896 /* this is to allow wr32 to have something to write to
2897 * during early allocation of Rx buffers
2898 */
2899 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;
2900
2901 err = ice_setup_rx_ring(&rx_rings[i]);
2902 if (err)
2903 goto rx_unwind;
2904
2905 /* allocate Rx buffers */
2906 err = ice_alloc_rx_bufs(&rx_rings[i],
2907 ICE_DESC_UNUSED(&rx_rings[i]));
2908 rx_unwind:
2909 if (err) {
2910 while (i) {
2911 i--;
2912 ice_free_rx_ring(&rx_rings[i]);
2913 }
2914 kfree(rx_rings);
2915 err = -ENOMEM;
2916 goto free_tx;
2917 }
2918 }
2919
2920 process_link:
2921 /* Bring interface down, copy in the new ring info, then restore the
2922 * interface. if VSI is up, bring it down and then back up
2923 */
2924 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
2925 ice_down(vsi);
2926
2927 if (tx_rings) {
2928 ice_for_each_txq(vsi, i) {
2929 ice_free_tx_ring(vsi->tx_rings[i]);
2930 *vsi->tx_rings[i] = tx_rings[i];
2931 }
2932 kfree(tx_rings);
2933 }
2934
2935 if (rx_rings) {
2936 ice_for_each_rxq(vsi, i) {
2937 ice_free_rx_ring(vsi->rx_rings[i]);
2938 /* copy the real tail offset */
2939 rx_rings[i].tail = vsi->rx_rings[i]->tail;
2940 /* this is to fake out the allocation routine
2941 * into thinking it has to realloc everything
2942 * but the recycling logic will let us re-use
2943 * the buffers allocated above
2944 */
2945 rx_rings[i].next_to_use = 0;
2946 rx_rings[i].next_to_clean = 0;
2947 rx_rings[i].next_to_alloc = 0;
2948 *vsi->rx_rings[i] = rx_rings[i];
2949 }
2950 kfree(rx_rings);
2951 }
2952
2953 if (xdp_rings) {
2954 ice_for_each_xdp_txq(vsi, i) {
2955 ice_free_tx_ring(vsi->xdp_rings[i]);
2956 *vsi->xdp_rings[i] = xdp_rings[i];
2957 }
2958 kfree(xdp_rings);
2959 }
2960
2961 vsi->num_tx_desc = new_tx_cnt;
2962 vsi->num_rx_desc = new_rx_cnt;
2963 ice_up(vsi);
2964 }
2965 goto done;
2966
2967 free_tx:
2968 /* error cleanup if the Rx allocations failed after getting Tx */
2969 if (tx_rings) {
2970 ice_for_each_txq(vsi, i)
2971 ice_free_tx_ring(&tx_rings[i]);
2972 kfree(tx_rings);
2973 }
2974
2975 done:
2976 clear_bit(ICE_CFG_BUSY, pf->state);
2977 return err;
2978 }
2979
2980 /**
2981 * ice_get_pauseparam - Get Flow Control status
2982 * @netdev: network interface device structure
2983 * @pause: ethernet pause (flow control) parameters
2984 *
2985 * Get requested flow control status from PHY capability.
2986 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which
2987 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report
2988 * the negotiated Rx/Tx pause via lp_advertising.
2989 */
2990 static void
ice_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)2991 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
2992 {
2993 struct ice_netdev_priv *np = netdev_priv(netdev);
2994 struct ice_port_info *pi = np->vsi->port_info;
2995 struct ice_aqc_get_phy_caps_data *pcaps;
2996 struct ice_dcbx_cfg *dcbx_cfg;
2997 int status;
2998
2999 /* Initialize pause params */
3000 pause->rx_pause = 0;
3001 pause->tx_pause = 0;
3002
3003 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
3004
3005 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
3006 if (!pcaps)
3007 return;
3008
3009 /* Get current PHY config */
3010 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
3011 NULL);
3012 if (status)
3013 goto out;
3014
3015 pause->autoneg = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
3016 AUTONEG_DISABLE;
3017
3018 if (dcbx_cfg->pfc.pfcena)
3019 /* PFC enabled so report LFC as off */
3020 goto out;
3021
3022 if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE)
3023 pause->tx_pause = 1;
3024 if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
3025 pause->rx_pause = 1;
3026
3027 out:
3028 kfree(pcaps);
3029 }
3030
3031 /**
3032 * ice_set_pauseparam - Set Flow Control parameter
3033 * @netdev: network interface device structure
3034 * @pause: return Tx/Rx flow control status
3035 */
3036 static int
ice_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pause)3037 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
3038 {
3039 struct ice_netdev_priv *np = netdev_priv(netdev);
3040 struct ice_aqc_get_phy_caps_data *pcaps;
3041 struct ice_link_status *hw_link_info;
3042 struct ice_pf *pf = np->vsi->back;
3043 struct ice_dcbx_cfg *dcbx_cfg;
3044 struct ice_vsi *vsi = np->vsi;
3045 struct ice_hw *hw = &pf->hw;
3046 struct ice_port_info *pi;
3047 u8 aq_failures;
3048 bool link_up;
3049 u32 is_an;
3050 int err;
3051
3052 pi = vsi->port_info;
3053 hw_link_info = &pi->phy.link_info;
3054 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
3055 link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;
3056
3057 /* Changing the port's flow control is not supported if this isn't the
3058 * PF VSI
3059 */
3060 if (vsi->type != ICE_VSI_PF) {
3061 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
3062 return -EOPNOTSUPP;
3063 }
3064
3065 /* Get pause param reports configured and negotiated flow control pause
3066 * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is
3067 * defined get pause param pause->autoneg reports SW configured setting,
3068 * so compare pause->autoneg with SW configured to prevent the user from
3069 * using set pause param to chance autoneg.
3070 */
3071 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL);
3072 if (!pcaps)
3073 return -ENOMEM;
3074
3075 /* Get current PHY config */
3076 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
3077 NULL);
3078 if (err) {
3079 kfree(pcaps);
3080 return err;
3081 }
3082
3083 is_an = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
3084 AUTONEG_DISABLE;
3085
3086 kfree(pcaps);
3087
3088 if (pause->autoneg != is_an) {
3089 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
3090 return -EOPNOTSUPP;
3091 }
3092
3093 /* If we have link and don't have autoneg */
3094 if (!test_bit(ICE_DOWN, pf->state) &&
3095 !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
3096 /* Send message that it might not necessarily work*/
3097 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
3098 }
3099
3100 if (dcbx_cfg->pfc.pfcena) {
3101 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n");
3102 return -EOPNOTSUPP;
3103 }
3104 if (pause->rx_pause && pause->tx_pause)
3105 pi->fc.req_mode = ICE_FC_FULL;
3106 else if (pause->rx_pause && !pause->tx_pause)
3107 pi->fc.req_mode = ICE_FC_RX_PAUSE;
3108 else if (!pause->rx_pause && pause->tx_pause)
3109 pi->fc.req_mode = ICE_FC_TX_PAUSE;
3110 else if (!pause->rx_pause && !pause->tx_pause)
3111 pi->fc.req_mode = ICE_FC_NONE;
3112 else
3113 return -EINVAL;
3114
3115 /* Set the FC mode and only restart AN if link is up */
3116 err = ice_set_fc(pi, &aq_failures, link_up);
3117
3118 if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
3119 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %s\n",
3120 err, ice_aq_str(hw->adminq.sq_last_status));
3121 err = -EAGAIN;
3122 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
3123 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %s\n",
3124 err, ice_aq_str(hw->adminq.sq_last_status));
3125 err = -EAGAIN;
3126 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
3127 netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %s\n",
3128 err, ice_aq_str(hw->adminq.sq_last_status));
3129 err = -EAGAIN;
3130 }
3131
3132 return err;
3133 }
3134
3135 /**
3136 * ice_get_rxfh_key_size - get the RSS hash key size
3137 * @netdev: network interface device structure
3138 *
3139 * Returns the table size.
3140 */
ice_get_rxfh_key_size(struct net_device __always_unused * netdev)3141 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
3142 {
3143 return ICE_VSIQF_HKEY_ARRAY_SIZE;
3144 }
3145
3146 /**
3147 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size
3148 * @netdev: network interface device structure
3149 *
3150 * Returns the table size.
3151 */
ice_get_rxfh_indir_size(struct net_device * netdev)3152 static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
3153 {
3154 struct ice_netdev_priv *np = netdev_priv(netdev);
3155
3156 return np->vsi->rss_table_size;
3157 }
3158
3159 static int
ice_get_rxfh_context(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc,u32 rss_context)3160 ice_get_rxfh_context(struct net_device *netdev, u32 *indir,
3161 u8 *key, u8 *hfunc, u32 rss_context)
3162 {
3163 struct ice_netdev_priv *np = netdev_priv(netdev);
3164 struct ice_vsi *vsi = np->vsi;
3165 struct ice_pf *pf = vsi->back;
3166 u16 qcount, offset;
3167 int err, num_tc, i;
3168 u8 *lut;
3169
3170 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3171 netdev_warn(netdev, "RSS is not supported on this VSI!\n");
3172 return -EOPNOTSUPP;
3173 }
3174
3175 if (rss_context && !ice_is_adq_active(pf)) {
3176 netdev_err(netdev, "RSS context cannot be non-zero when ADQ is not configured.\n");
3177 return -EINVAL;
3178 }
3179
3180 qcount = vsi->mqprio_qopt.qopt.count[rss_context];
3181 offset = vsi->mqprio_qopt.qopt.offset[rss_context];
3182
3183 if (rss_context && ice_is_adq_active(pf)) {
3184 num_tc = vsi->mqprio_qopt.qopt.num_tc;
3185 if (rss_context >= num_tc) {
3186 netdev_err(netdev, "RSS context:%d > num_tc:%d\n",
3187 rss_context, num_tc);
3188 return -EINVAL;
3189 }
3190 /* Use channel VSI of given TC */
3191 vsi = vsi->tc_map_vsi[rss_context];
3192 }
3193
3194 if (hfunc)
3195 *hfunc = ETH_RSS_HASH_TOP;
3196
3197 if (!indir)
3198 return 0;
3199
3200 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3201 if (!lut)
3202 return -ENOMEM;
3203
3204 err = ice_get_rss_key(vsi, key);
3205 if (err)
3206 goto out;
3207
3208 err = ice_get_rss_lut(vsi, lut, vsi->rss_table_size);
3209 if (err)
3210 goto out;
3211
3212 if (ice_is_adq_active(pf)) {
3213 for (i = 0; i < vsi->rss_table_size; i++)
3214 indir[i] = offset + lut[i] % qcount;
3215 goto out;
3216 }
3217
3218 for (i = 0; i < vsi->rss_table_size; i++)
3219 indir[i] = lut[i];
3220
3221 out:
3222 kfree(lut);
3223 return err;
3224 }
3225
3226 /**
3227 * ice_get_rxfh - get the Rx flow hash indirection table
3228 * @netdev: network interface device structure
3229 * @indir: indirection table
3230 * @key: hash key
3231 * @hfunc: hash function
3232 *
3233 * Reads the indirection table directly from the hardware.
3234 */
3235 static int
ice_get_rxfh(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc)3236 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
3237 {
3238 return ice_get_rxfh_context(netdev, indir, key, hfunc, 0);
3239 }
3240
3241 /**
3242 * ice_set_rxfh - set the Rx flow hash indirection table
3243 * @netdev: network interface device structure
3244 * @indir: indirection table
3245 * @key: hash key
3246 * @hfunc: hash function
3247 *
3248 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise
3249 * returns 0 after programming the table.
3250 */
3251 static int
ice_set_rxfh(struct net_device * netdev,const u32 * indir,const u8 * key,const u8 hfunc)3252 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key,
3253 const u8 hfunc)
3254 {
3255 struct ice_netdev_priv *np = netdev_priv(netdev);
3256 struct ice_vsi *vsi = np->vsi;
3257 struct ice_pf *pf = vsi->back;
3258 struct device *dev;
3259 int err;
3260
3261 dev = ice_pf_to_dev(pf);
3262 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
3263 return -EOPNOTSUPP;
3264
3265 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
3266 /* RSS not supported return error here */
3267 netdev_warn(netdev, "RSS is not configured on this VSI!\n");
3268 return -EIO;
3269 }
3270
3271 if (ice_is_adq_active(pf)) {
3272 netdev_err(netdev, "Cannot change RSS params with ADQ configured.\n");
3273 return -EOPNOTSUPP;
3274 }
3275
3276 if (key) {
3277 if (!vsi->rss_hkey_user) {
3278 vsi->rss_hkey_user =
3279 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE,
3280 GFP_KERNEL);
3281 if (!vsi->rss_hkey_user)
3282 return -ENOMEM;
3283 }
3284 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
3285
3286 err = ice_set_rss_key(vsi, vsi->rss_hkey_user);
3287 if (err)
3288 return err;
3289 }
3290
3291 if (!vsi->rss_lut_user) {
3292 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size,
3293 GFP_KERNEL);
3294 if (!vsi->rss_lut_user)
3295 return -ENOMEM;
3296 }
3297
3298 /* Each 32 bits pointed by 'indir' is stored with a lut entry */
3299 if (indir) {
3300 int i;
3301
3302 for (i = 0; i < vsi->rss_table_size; i++)
3303 vsi->rss_lut_user[i] = (u8)(indir[i]);
3304 } else {
3305 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
3306 vsi->rss_size);
3307 }
3308
3309 err = ice_set_rss_lut(vsi, vsi->rss_lut_user, vsi->rss_table_size);
3310 if (err)
3311 return err;
3312
3313 return 0;
3314 }
3315
3316 static int
ice_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)3317 ice_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
3318 {
3319 struct ice_pf *pf = ice_netdev_to_pf(dev);
3320
3321 /* only report timestamping if PTP is enabled */
3322 if (!test_bit(ICE_FLAG_PTP, pf->flags))
3323 return ethtool_op_get_ts_info(dev, info);
3324
3325 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
3326 SOF_TIMESTAMPING_RX_SOFTWARE |
3327 SOF_TIMESTAMPING_SOFTWARE |
3328 SOF_TIMESTAMPING_TX_HARDWARE |
3329 SOF_TIMESTAMPING_RX_HARDWARE |
3330 SOF_TIMESTAMPING_RAW_HARDWARE;
3331
3332 info->phc_index = ice_get_ptp_clock_index(pf);
3333
3334 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
3335
3336 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
3337
3338 return 0;
3339 }
3340
3341 /**
3342 * ice_get_max_txq - return the maximum number of Tx queues for in a PF
3343 * @pf: PF structure
3344 */
ice_get_max_txq(struct ice_pf * pf)3345 static int ice_get_max_txq(struct ice_pf *pf)
3346 {
3347 return min3(pf->num_lan_msix, (u16)num_online_cpus(),
3348 (u16)pf->hw.func_caps.common_cap.num_txq);
3349 }
3350
3351 /**
3352 * ice_get_max_rxq - return the maximum number of Rx queues for in a PF
3353 * @pf: PF structure
3354 */
ice_get_max_rxq(struct ice_pf * pf)3355 static int ice_get_max_rxq(struct ice_pf *pf)
3356 {
3357 return min3(pf->num_lan_msix, (u16)num_online_cpus(),
3358 (u16)pf->hw.func_caps.common_cap.num_rxq);
3359 }
3360
3361 /**
3362 * ice_get_combined_cnt - return the current number of combined channels
3363 * @vsi: PF VSI pointer
3364 *
3365 * Go through all queue vectors and count ones that have both Rx and Tx ring
3366 * attached
3367 */
ice_get_combined_cnt(struct ice_vsi * vsi)3368 static u32 ice_get_combined_cnt(struct ice_vsi *vsi)
3369 {
3370 u32 combined = 0;
3371 int q_idx;
3372
3373 ice_for_each_q_vector(vsi, q_idx) {
3374 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx];
3375
3376 if (q_vector->rx.rx_ring && q_vector->tx.tx_ring)
3377 combined++;
3378 }
3379
3380 return combined;
3381 }
3382
3383 /**
3384 * ice_get_channels - get the current and max supported channels
3385 * @dev: network interface device structure
3386 * @ch: ethtool channel data structure
3387 */
3388 static void
ice_get_channels(struct net_device * dev,struct ethtool_channels * ch)3389 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch)
3390 {
3391 struct ice_netdev_priv *np = netdev_priv(dev);
3392 struct ice_vsi *vsi = np->vsi;
3393 struct ice_pf *pf = vsi->back;
3394
3395 /* report maximum channels */
3396 ch->max_rx = ice_get_max_rxq(pf);
3397 ch->max_tx = ice_get_max_txq(pf);
3398 ch->max_combined = min_t(int, ch->max_rx, ch->max_tx);
3399
3400 /* report current channels */
3401 ch->combined_count = ice_get_combined_cnt(vsi);
3402 ch->rx_count = vsi->num_rxq - ch->combined_count;
3403 ch->tx_count = vsi->num_txq - ch->combined_count;
3404
3405 /* report other queues */
3406 ch->other_count = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0;
3407 ch->max_other = ch->other_count;
3408 }
3409
3410 /**
3411 * ice_get_valid_rss_size - return valid number of RSS queues
3412 * @hw: pointer to the HW structure
3413 * @new_size: requested RSS queues
3414 */
ice_get_valid_rss_size(struct ice_hw * hw,int new_size)3415 static int ice_get_valid_rss_size(struct ice_hw *hw, int new_size)
3416 {
3417 struct ice_hw_common_caps *caps = &hw->func_caps.common_cap;
3418
3419 return min_t(int, new_size, BIT(caps->rss_table_entry_width));
3420 }
3421
3422 /**
3423 * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size
3424 * @vsi: VSI to reconfigure RSS LUT on
3425 * @req_rss_size: requested range of queue numbers for hashing
3426 *
3427 * Set the VSI's RSS parameters, configure the RSS LUT based on these.
3428 */
ice_vsi_set_dflt_rss_lut(struct ice_vsi * vsi,int req_rss_size)3429 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size)
3430 {
3431 struct ice_pf *pf = vsi->back;
3432 struct device *dev;
3433 struct ice_hw *hw;
3434 int err;
3435 u8 *lut;
3436
3437 dev = ice_pf_to_dev(pf);
3438 hw = &pf->hw;
3439
3440 if (!req_rss_size)
3441 return -EINVAL;
3442
3443 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL);
3444 if (!lut)
3445 return -ENOMEM;
3446
3447 /* set RSS LUT parameters */
3448 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags))
3449 vsi->rss_size = 1;
3450 else
3451 vsi->rss_size = ice_get_valid_rss_size(hw, req_rss_size);
3452
3453 /* create/set RSS LUT */
3454 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size);
3455 err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size);
3456 if (err)
3457 dev_err(dev, "Cannot set RSS lut, err %d aq_err %s\n", err,
3458 ice_aq_str(hw->adminq.sq_last_status));
3459
3460 kfree(lut);
3461 return err;
3462 }
3463
3464 /**
3465 * ice_set_channels - set the number channels
3466 * @dev: network interface device structure
3467 * @ch: ethtool channel data structure
3468 */
ice_set_channels(struct net_device * dev,struct ethtool_channels * ch)3469 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch)
3470 {
3471 struct ice_netdev_priv *np = netdev_priv(dev);
3472 struct ice_vsi *vsi = np->vsi;
3473 struct ice_pf *pf = vsi->back;
3474 int new_rx = 0, new_tx = 0;
3475 bool locked = false;
3476 u32 curr_combined;
3477 int ret = 0;
3478
3479 /* do not support changing channels in Safe Mode */
3480 if (ice_is_safe_mode(pf)) {
3481 netdev_err(dev, "Changing channel in Safe Mode is not supported\n");
3482 return -EOPNOTSUPP;
3483 }
3484 /* do not support changing other_count */
3485 if (ch->other_count != (test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1U : 0U))
3486 return -EINVAL;
3487
3488 if (ice_is_adq_active(pf)) {
3489 netdev_err(dev, "Cannot set channels with ADQ configured.\n");
3490 return -EOPNOTSUPP;
3491 }
3492
3493 if (test_bit(ICE_FLAG_FD_ENA, pf->flags) && pf->hw.fdir_active_fltr) {
3494 netdev_err(dev, "Cannot set channels when Flow Director filters are active\n");
3495 return -EOPNOTSUPP;
3496 }
3497
3498 curr_combined = ice_get_combined_cnt(vsi);
3499
3500 /* these checks are for cases where user didn't specify a particular
3501 * value on cmd line but we get non-zero value anyway via
3502 * get_channels(); look at ethtool.c in ethtool repository (the user
3503 * space part), particularly, do_schannels() routine
3504 */
3505 if (ch->rx_count == vsi->num_rxq - curr_combined)
3506 ch->rx_count = 0;
3507 if (ch->tx_count == vsi->num_txq - curr_combined)
3508 ch->tx_count = 0;
3509 if (ch->combined_count == curr_combined)
3510 ch->combined_count = 0;
3511
3512 if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) {
3513 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n");
3514 return -EINVAL;
3515 }
3516
3517 new_rx = ch->combined_count + ch->rx_count;
3518 new_tx = ch->combined_count + ch->tx_count;
3519
3520 if (new_rx < vsi->tc_cfg.numtc) {
3521 netdev_err(dev, "Cannot set less Rx channels, than Traffic Classes you have (%u)\n",
3522 vsi->tc_cfg.numtc);
3523 return -EINVAL;
3524 }
3525 if (new_tx < vsi->tc_cfg.numtc) {
3526 netdev_err(dev, "Cannot set less Tx channels, than Traffic Classes you have (%u)\n",
3527 vsi->tc_cfg.numtc);
3528 return -EINVAL;
3529 }
3530 if (new_rx > ice_get_max_rxq(pf)) {
3531 netdev_err(dev, "Maximum allowed Rx channels is %d\n",
3532 ice_get_max_rxq(pf));
3533 return -EINVAL;
3534 }
3535 if (new_tx > ice_get_max_txq(pf)) {
3536 netdev_err(dev, "Maximum allowed Tx channels is %d\n",
3537 ice_get_max_txq(pf));
3538 return -EINVAL;
3539 }
3540
3541 if (pf->adev) {
3542 mutex_lock(&pf->adev_mutex);
3543 device_lock(&pf->adev->dev);
3544 locked = true;
3545 if (pf->adev->dev.driver) {
3546 netdev_err(dev, "Cannot change channels when RDMA is active\n");
3547 ret = -EBUSY;
3548 goto adev_unlock;
3549 }
3550 }
3551
3552 ice_vsi_recfg_qs(vsi, new_rx, new_tx, locked);
3553
3554 if (!netif_is_rxfh_configured(dev)) {
3555 ret = ice_vsi_set_dflt_rss_lut(vsi, new_rx);
3556 goto adev_unlock;
3557 }
3558
3559 /* Update rss_size due to change in Rx queues */
3560 vsi->rss_size = ice_get_valid_rss_size(&pf->hw, new_rx);
3561
3562 adev_unlock:
3563 if (locked) {
3564 device_unlock(&pf->adev->dev);
3565 mutex_unlock(&pf->adev_mutex);
3566 }
3567 return ret;
3568 }
3569
3570 /**
3571 * ice_get_wol - get current Wake on LAN configuration
3572 * @netdev: network interface device structure
3573 * @wol: Ethtool structure to retrieve WoL settings
3574 */
ice_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)3575 static void ice_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
3576 {
3577 struct ice_netdev_priv *np = netdev_priv(netdev);
3578 struct ice_pf *pf = np->vsi->back;
3579
3580 if (np->vsi->type != ICE_VSI_PF)
3581 netdev_warn(netdev, "Wake on LAN is not supported on this interface!\n");
3582
3583 /* Get WoL settings based on the HW capability */
3584 if (ice_is_wol_supported(&pf->hw)) {
3585 wol->supported = WAKE_MAGIC;
3586 wol->wolopts = pf->wol_ena ? WAKE_MAGIC : 0;
3587 } else {
3588 wol->supported = 0;
3589 wol->wolopts = 0;
3590 }
3591 }
3592
3593 /**
3594 * ice_set_wol - set Wake on LAN on supported device
3595 * @netdev: network interface device structure
3596 * @wol: Ethtool structure to set WoL
3597 */
ice_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)3598 static int ice_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
3599 {
3600 struct ice_netdev_priv *np = netdev_priv(netdev);
3601 struct ice_vsi *vsi = np->vsi;
3602 struct ice_pf *pf = vsi->back;
3603
3604 if (vsi->type != ICE_VSI_PF || !ice_is_wol_supported(&pf->hw))
3605 return -EOPNOTSUPP;
3606
3607 /* only magic packet is supported */
3608 if (wol->wolopts && wol->wolopts != WAKE_MAGIC)
3609 return -EOPNOTSUPP;
3610
3611 /* Set WoL only if there is a new value */
3612 if (pf->wol_ena != !!wol->wolopts) {
3613 pf->wol_ena = !!wol->wolopts;
3614 device_set_wakeup_enable(ice_pf_to_dev(pf), pf->wol_ena);
3615 netdev_dbg(netdev, "WoL magic packet %sabled\n",
3616 pf->wol_ena ? "en" : "dis");
3617 }
3618
3619 return 0;
3620 }
3621
3622 /**
3623 * ice_get_rc_coalesce - get ITR values for specific ring container
3624 * @ec: ethtool structure to fill with driver's coalesce settings
3625 * @rc: ring container that the ITR values will come from
3626 *
3627 * Query the device for ice_ring_container specific ITR values. This is
3628 * done per ice_ring_container because each q_vector can have 1 or more rings
3629 * and all of said ring(s) will have the same ITR values.
3630 *
3631 * Returns 0 on success, negative otherwise.
3632 */
3633 static int
ice_get_rc_coalesce(struct ethtool_coalesce * ec,struct ice_ring_container * rc)3634 ice_get_rc_coalesce(struct ethtool_coalesce *ec, struct ice_ring_container *rc)
3635 {
3636 if (!rc->rx_ring)
3637 return -EINVAL;
3638
3639 switch (rc->type) {
3640 case ICE_RX_CONTAINER:
3641 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc);
3642 ec->rx_coalesce_usecs = rc->itr_setting;
3643 ec->rx_coalesce_usecs_high = rc->rx_ring->q_vector->intrl;
3644 break;
3645 case ICE_TX_CONTAINER:
3646 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc);
3647 ec->tx_coalesce_usecs = rc->itr_setting;
3648 break;
3649 default:
3650 dev_dbg(ice_pf_to_dev(rc->rx_ring->vsi->back), "Invalid c_type %d\n", rc->type);
3651 return -EINVAL;
3652 }
3653
3654 return 0;
3655 }
3656
3657 /**
3658 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings
3659 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings
3660 * @ec: coalesce settings to program the device with
3661 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3662 *
3663 * Return 0 on success, and negative under the following conditions:
3664 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed.
3665 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3666 */
3667 static int
ice_get_q_coalesce(struct ice_vsi * vsi,struct ethtool_coalesce * ec,int q_num)3668 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3669 {
3670 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3671 if (ice_get_rc_coalesce(ec,
3672 &vsi->rx_rings[q_num]->q_vector->rx))
3673 return -EINVAL;
3674 if (ice_get_rc_coalesce(ec,
3675 &vsi->tx_rings[q_num]->q_vector->tx))
3676 return -EINVAL;
3677 } else if (q_num < vsi->num_rxq) {
3678 if (ice_get_rc_coalesce(ec,
3679 &vsi->rx_rings[q_num]->q_vector->rx))
3680 return -EINVAL;
3681 } else if (q_num < vsi->num_txq) {
3682 if (ice_get_rc_coalesce(ec,
3683 &vsi->tx_rings[q_num]->q_vector->tx))
3684 return -EINVAL;
3685 } else {
3686 return -EINVAL;
3687 }
3688
3689 return 0;
3690 }
3691
3692 /**
3693 * __ice_get_coalesce - get ITR/INTRL values for the device
3694 * @netdev: pointer to the netdev associated with this query
3695 * @ec: ethtool structure to fill with driver's coalesce settings
3696 * @q_num: queue number to get the coalesce settings for
3697 *
3698 * If the caller passes in a negative q_num then we return coalesce settings
3699 * based on queue number 0, else use the actual q_num passed in.
3700 */
3701 static int
__ice_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,int q_num)3702 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3703 int q_num)
3704 {
3705 struct ice_netdev_priv *np = netdev_priv(netdev);
3706 struct ice_vsi *vsi = np->vsi;
3707
3708 if (q_num < 0)
3709 q_num = 0;
3710
3711 if (ice_get_q_coalesce(vsi, ec, q_num))
3712 return -EINVAL;
3713
3714 return 0;
3715 }
3716
ice_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)3717 static int ice_get_coalesce(struct net_device *netdev,
3718 struct ethtool_coalesce *ec,
3719 struct kernel_ethtool_coalesce *kernel_coal,
3720 struct netlink_ext_ack *extack)
3721 {
3722 return __ice_get_coalesce(netdev, ec, -1);
3723 }
3724
3725 static int
ice_get_per_q_coalesce(struct net_device * netdev,u32 q_num,struct ethtool_coalesce * ec)3726 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num,
3727 struct ethtool_coalesce *ec)
3728 {
3729 return __ice_get_coalesce(netdev, ec, q_num);
3730 }
3731
3732 /**
3733 * ice_set_rc_coalesce - set ITR values for specific ring container
3734 * @ec: ethtool structure from user to update ITR settings
3735 * @rc: ring container that the ITR values will come from
3736 * @vsi: VSI associated to the ring container
3737 *
3738 * Set specific ITR values. This is done per ice_ring_container because each
3739 * q_vector can have 1 or more rings and all of said ring(s) will have the same
3740 * ITR values.
3741 *
3742 * Returns 0 on success, negative otherwise.
3743 */
3744 static int
ice_set_rc_coalesce(struct ethtool_coalesce * ec,struct ice_ring_container * rc,struct ice_vsi * vsi)3745 ice_set_rc_coalesce(struct ethtool_coalesce *ec,
3746 struct ice_ring_container *rc, struct ice_vsi *vsi)
3747 {
3748 const char *c_type_str = (rc->type == ICE_RX_CONTAINER) ? "rx" : "tx";
3749 u32 use_adaptive_coalesce, coalesce_usecs;
3750 struct ice_pf *pf = vsi->back;
3751 u16 itr_setting;
3752
3753 if (!rc->rx_ring)
3754 return -EINVAL;
3755
3756 switch (rc->type) {
3757 case ICE_RX_CONTAINER:
3758 {
3759 struct ice_q_vector *q_vector = rc->rx_ring->q_vector;
3760
3761 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL ||
3762 (ec->rx_coalesce_usecs_high &&
3763 ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) {
3764 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n",
3765 c_type_str, pf->hw.intrl_gran,
3766 ICE_MAX_INTRL);
3767 return -EINVAL;
3768 }
3769 if (ec->rx_coalesce_usecs_high != q_vector->intrl &&
3770 (ec->use_adaptive_rx_coalesce || ec->use_adaptive_tx_coalesce)) {
3771 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high cannot be changed if adaptive-tx or adaptive-rx is enabled\n",
3772 c_type_str);
3773 return -EINVAL;
3774 }
3775 if (ec->rx_coalesce_usecs_high != q_vector->intrl)
3776 q_vector->intrl = ec->rx_coalesce_usecs_high;
3777
3778 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce;
3779 coalesce_usecs = ec->rx_coalesce_usecs;
3780
3781 break;
3782 }
3783 case ICE_TX_CONTAINER:
3784 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce;
3785 coalesce_usecs = ec->tx_coalesce_usecs;
3786
3787 break;
3788 default:
3789 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n",
3790 rc->type);
3791 return -EINVAL;
3792 }
3793
3794 itr_setting = rc->itr_setting;
3795 if (coalesce_usecs != itr_setting && use_adaptive_coalesce) {
3796 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n",
3797 c_type_str, c_type_str);
3798 return -EINVAL;
3799 }
3800
3801 if (coalesce_usecs > ICE_ITR_MAX) {
3802 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n",
3803 c_type_str, ICE_ITR_MAX);
3804 return -EINVAL;
3805 }
3806
3807 if (use_adaptive_coalesce) {
3808 rc->itr_mode = ITR_DYNAMIC;
3809 } else {
3810 rc->itr_mode = ITR_STATIC;
3811 /* store user facing value how it was set */
3812 rc->itr_setting = coalesce_usecs;
3813 /* write the change to the register */
3814 ice_write_itr(rc, coalesce_usecs);
3815 /* force writes to take effect immediately, the flush shouldn't
3816 * be done in the functions above because the intent is for
3817 * them to do lazy writes.
3818 */
3819 ice_flush(&pf->hw);
3820 }
3821
3822 return 0;
3823 }
3824
3825 /**
3826 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings
3827 * @vsi: VSI associated to the queue that need updating
3828 * @ec: coalesce settings to program the device with
3829 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index
3830 *
3831 * Return 0 on success, and negative under the following conditions:
3832 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed.
3833 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings.
3834 */
3835 static int
ice_set_q_coalesce(struct ice_vsi * vsi,struct ethtool_coalesce * ec,int q_num)3836 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num)
3837 {
3838 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) {
3839 if (ice_set_rc_coalesce(ec,
3840 &vsi->rx_rings[q_num]->q_vector->rx,
3841 vsi))
3842 return -EINVAL;
3843
3844 if (ice_set_rc_coalesce(ec,
3845 &vsi->tx_rings[q_num]->q_vector->tx,
3846 vsi))
3847 return -EINVAL;
3848 } else if (q_num < vsi->num_rxq) {
3849 if (ice_set_rc_coalesce(ec,
3850 &vsi->rx_rings[q_num]->q_vector->rx,
3851 vsi))
3852 return -EINVAL;
3853 } else if (q_num < vsi->num_txq) {
3854 if (ice_set_rc_coalesce(ec,
3855 &vsi->tx_rings[q_num]->q_vector->tx,
3856 vsi))
3857 return -EINVAL;
3858 } else {
3859 return -EINVAL;
3860 }
3861
3862 return 0;
3863 }
3864
3865 /**
3866 * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs
3867 * @netdev: netdev used for print
3868 * @itr_setting: previous user setting
3869 * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled
3870 * @coalesce_usecs: requested value of [tx|rx]-usecs
3871 * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs
3872 */
3873 static void
ice_print_if_odd_usecs(struct net_device * netdev,u16 itr_setting,u32 use_adaptive_coalesce,u32 coalesce_usecs,const char * c_type_str)3874 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting,
3875 u32 use_adaptive_coalesce, u32 coalesce_usecs,
3876 const char *c_type_str)
3877 {
3878 if (use_adaptive_coalesce)
3879 return;
3880
3881 if (itr_setting != coalesce_usecs && (coalesce_usecs % 2))
3882 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",
3883 c_type_str, coalesce_usecs, c_type_str,
3884 ITR_REG_ALIGN(coalesce_usecs));
3885 }
3886
3887 /**
3888 * __ice_set_coalesce - set ITR/INTRL values for the device
3889 * @netdev: pointer to the netdev associated with this query
3890 * @ec: ethtool structure to fill with driver's coalesce settings
3891 * @q_num: queue number to get the coalesce settings for
3892 *
3893 * If the caller passes in a negative q_num then we set the coalesce settings
3894 * for all Tx/Rx queues, else use the actual q_num passed in.
3895 */
3896 static int
__ice_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,int q_num)3897 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec,
3898 int q_num)
3899 {
3900 struct ice_netdev_priv *np = netdev_priv(netdev);
3901 struct ice_vsi *vsi = np->vsi;
3902
3903 if (q_num < 0) {
3904 struct ice_q_vector *q_vector = vsi->q_vectors[0];
3905 int v_idx;
3906
3907 if (q_vector) {
3908 ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting,
3909 ec->use_adaptive_rx_coalesce,
3910 ec->rx_coalesce_usecs, "rx");
3911
3912 ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting,
3913 ec->use_adaptive_tx_coalesce,
3914 ec->tx_coalesce_usecs, "tx");
3915 }
3916
3917 ice_for_each_q_vector(vsi, v_idx) {
3918 /* In some cases if DCB is configured the num_[rx|tx]q
3919 * can be less than vsi->num_q_vectors. This check
3920 * accounts for that so we don't report a false failure
3921 */
3922 if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq)
3923 goto set_complete;
3924
3925 if (ice_set_q_coalesce(vsi, ec, v_idx))
3926 return -EINVAL;
3927
3928 ice_set_q_vector_intrl(vsi->q_vectors[v_idx]);
3929 }
3930 goto set_complete;
3931 }
3932
3933 if (ice_set_q_coalesce(vsi, ec, q_num))
3934 return -EINVAL;
3935
3936 ice_set_q_vector_intrl(vsi->q_vectors[q_num]);
3937
3938 set_complete:
3939 return 0;
3940 }
3941
ice_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * ec,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)3942 static int ice_set_coalesce(struct net_device *netdev,
3943 struct ethtool_coalesce *ec,
3944 struct kernel_ethtool_coalesce *kernel_coal,
3945 struct netlink_ext_ack *extack)
3946 {
3947 return __ice_set_coalesce(netdev, ec, -1);
3948 }
3949
3950 static int
ice_set_per_q_coalesce(struct net_device * netdev,u32 q_num,struct ethtool_coalesce * ec)3951 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num,
3952 struct ethtool_coalesce *ec)
3953 {
3954 return __ice_set_coalesce(netdev, ec, q_num);
3955 }
3956
3957 static void
ice_repr_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)3958 ice_repr_get_drvinfo(struct net_device *netdev,
3959 struct ethtool_drvinfo *drvinfo)
3960 {
3961 struct ice_repr *repr = ice_netdev_to_repr(netdev);
3962
3963 if (ice_check_vf_ready_for_cfg(repr->vf))
3964 return;
3965
3966 __ice_get_drvinfo(netdev, drvinfo, repr->src_vsi);
3967 }
3968
3969 static void
ice_repr_get_strings(struct net_device * netdev,u32 stringset,u8 * data)3970 ice_repr_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
3971 {
3972 struct ice_repr *repr = ice_netdev_to_repr(netdev);
3973
3974 /* for port representors only ETH_SS_STATS is supported */
3975 if (ice_check_vf_ready_for_cfg(repr->vf) ||
3976 stringset != ETH_SS_STATS)
3977 return;
3978
3979 __ice_get_strings(netdev, stringset, data, repr->src_vsi);
3980 }
3981
3982 static void
ice_repr_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats __always_unused * stats,u64 * data)3983 ice_repr_get_ethtool_stats(struct net_device *netdev,
3984 struct ethtool_stats __always_unused *stats,
3985 u64 *data)
3986 {
3987 struct ice_repr *repr = ice_netdev_to_repr(netdev);
3988
3989 if (ice_check_vf_ready_for_cfg(repr->vf))
3990 return;
3991
3992 __ice_get_ethtool_stats(netdev, stats, data, repr->src_vsi);
3993 }
3994
ice_repr_get_sset_count(struct net_device * netdev,int sset)3995 static int ice_repr_get_sset_count(struct net_device *netdev, int sset)
3996 {
3997 switch (sset) {
3998 case ETH_SS_STATS:
3999 return ICE_VSI_STATS_LEN;
4000 default:
4001 return -EOPNOTSUPP;
4002 }
4003 }
4004
4005 #define ICE_I2C_EEPROM_DEV_ADDR 0xA0
4006 #define ICE_I2C_EEPROM_DEV_ADDR2 0xA2
4007 #define ICE_MODULE_TYPE_SFP 0x03
4008 #define ICE_MODULE_TYPE_QSFP_PLUS 0x0D
4009 #define ICE_MODULE_TYPE_QSFP28 0x11
4010 #define ICE_MODULE_SFF_ADDR_MODE 0x04
4011 #define ICE_MODULE_SFF_DIAG_CAPAB 0x40
4012 #define ICE_MODULE_REVISION_ADDR 0x01
4013 #define ICE_MODULE_SFF_8472_COMP 0x5E
4014 #define ICE_MODULE_SFF_8472_SWAP 0x5C
4015 #define ICE_MODULE_QSFP_MAX_LEN 640
4016
4017 /**
4018 * ice_get_module_info - get SFF module type and revision information
4019 * @netdev: network interface device structure
4020 * @modinfo: module EEPROM size and layout information structure
4021 */
4022 static int
ice_get_module_info(struct net_device * netdev,struct ethtool_modinfo * modinfo)4023 ice_get_module_info(struct net_device *netdev,
4024 struct ethtool_modinfo *modinfo)
4025 {
4026 struct ice_netdev_priv *np = netdev_priv(netdev);
4027 struct ice_vsi *vsi = np->vsi;
4028 struct ice_pf *pf = vsi->back;
4029 struct ice_hw *hw = &pf->hw;
4030 u8 sff8472_comp = 0;
4031 u8 sff8472_swap = 0;
4032 u8 sff8636_rev = 0;
4033 u8 value = 0;
4034 int status;
4035
4036 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00,
4037 0, &value, 1, 0, NULL);
4038 if (status)
4039 return status;
4040
4041 switch (value) {
4042 case ICE_MODULE_TYPE_SFP:
4043 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
4044 ICE_MODULE_SFF_8472_COMP, 0x00, 0,
4045 &sff8472_comp, 1, 0, NULL);
4046 if (status)
4047 return status;
4048 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
4049 ICE_MODULE_SFF_8472_SWAP, 0x00, 0,
4050 &sff8472_swap, 1, 0, NULL);
4051 if (status)
4052 return status;
4053
4054 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) {
4055 modinfo->type = ETH_MODULE_SFF_8079;
4056 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4057 } else if (sff8472_comp &&
4058 (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) {
4059 modinfo->type = ETH_MODULE_SFF_8472;
4060 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
4061 } else {
4062 modinfo->type = ETH_MODULE_SFF_8079;
4063 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4064 }
4065 break;
4066 case ICE_MODULE_TYPE_QSFP_PLUS:
4067 case ICE_MODULE_TYPE_QSFP28:
4068 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR,
4069 ICE_MODULE_REVISION_ADDR, 0x00, 0,
4070 &sff8636_rev, 1, 0, NULL);
4071 if (status)
4072 return status;
4073 /* Check revision compliance */
4074 if (sff8636_rev > 0x02) {
4075 /* Module is SFF-8636 compliant */
4076 modinfo->type = ETH_MODULE_SFF_8636;
4077 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
4078 } else {
4079 modinfo->type = ETH_MODULE_SFF_8436;
4080 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN;
4081 }
4082 break;
4083 default:
4084 netdev_warn(netdev, "SFF Module Type not recognized.\n");
4085 return -EINVAL;
4086 }
4087 return 0;
4088 }
4089
4090 /**
4091 * ice_get_module_eeprom - fill buffer with SFF EEPROM contents
4092 * @netdev: network interface device structure
4093 * @ee: EEPROM dump request structure
4094 * @data: buffer to be filled with EEPROM contents
4095 */
4096 static int
ice_get_module_eeprom(struct net_device * netdev,struct ethtool_eeprom * ee,u8 * data)4097 ice_get_module_eeprom(struct net_device *netdev,
4098 struct ethtool_eeprom *ee, u8 *data)
4099 {
4100 struct ice_netdev_priv *np = netdev_priv(netdev);
4101 #define SFF_READ_BLOCK_SIZE 8
4102 u8 value[SFF_READ_BLOCK_SIZE] = { 0 };
4103 u8 addr = ICE_I2C_EEPROM_DEV_ADDR;
4104 struct ice_vsi *vsi = np->vsi;
4105 struct ice_pf *pf = vsi->back;
4106 struct ice_hw *hw = &pf->hw;
4107 bool is_sfp = false;
4108 unsigned int i, j;
4109 u16 offset = 0;
4110 u8 page = 0;
4111 int status;
4112
4113 if (!ee || !ee->len || !data)
4114 return -EINVAL;
4115
4116 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0, value, 1, 0,
4117 NULL);
4118 if (status)
4119 return status;
4120
4121 if (value[0] == ICE_MODULE_TYPE_SFP)
4122 is_sfp = true;
4123
4124 memset(data, 0, ee->len);
4125 for (i = 0; i < ee->len; i += SFF_READ_BLOCK_SIZE) {
4126 offset = i + ee->offset;
4127 page = 0;
4128
4129 /* Check if we need to access the other memory page */
4130 if (is_sfp) {
4131 if (offset >= ETH_MODULE_SFF_8079_LEN) {
4132 offset -= ETH_MODULE_SFF_8079_LEN;
4133 addr = ICE_I2C_EEPROM_DEV_ADDR2;
4134 }
4135 } else {
4136 while (offset >= ETH_MODULE_SFF_8436_LEN) {
4137 /* Compute memory page number and offset. */
4138 offset -= ETH_MODULE_SFF_8436_LEN / 2;
4139 page++;
4140 }
4141 }
4142
4143 /* Bit 2 of EEPROM address 0x02 declares upper
4144 * pages are disabled on QSFP modules.
4145 * SFP modules only ever use page 0.
4146 */
4147 if (page == 0 || !(data[0x2] & 0x4)) {
4148 u32 copy_len;
4149
4150 /* If i2c bus is busy due to slow page change or
4151 * link management access, call can fail. This is normal.
4152 * So we retry this a few times.
4153 */
4154 for (j = 0; j < 4; j++) {
4155 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page,
4156 !is_sfp, value,
4157 SFF_READ_BLOCK_SIZE,
4158 0, NULL);
4159 netdev_dbg(netdev, "SFF %02X %02X %02X %X = %02X%02X%02X%02X.%02X%02X%02X%02X (%X)\n",
4160 addr, offset, page, is_sfp,
4161 value[0], value[1], value[2], value[3],
4162 value[4], value[5], value[6], value[7],
4163 status);
4164 if (status) {
4165 usleep_range(1500, 2500);
4166 memset(value, 0, SFF_READ_BLOCK_SIZE);
4167 continue;
4168 }
4169 break;
4170 }
4171
4172 /* Make sure we have enough room for the new block */
4173 copy_len = min_t(u32, SFF_READ_BLOCK_SIZE, ee->len - i);
4174 memcpy(data + i, value, copy_len);
4175 }
4176 }
4177 return 0;
4178 }
4179
4180 static const struct ethtool_ops ice_ethtool_ops = {
4181 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
4182 ETHTOOL_COALESCE_USE_ADAPTIVE |
4183 ETHTOOL_COALESCE_RX_USECS_HIGH,
4184 .get_link_ksettings = ice_get_link_ksettings,
4185 .set_link_ksettings = ice_set_link_ksettings,
4186 .get_drvinfo = ice_get_drvinfo,
4187 .get_regs_len = ice_get_regs_len,
4188 .get_regs = ice_get_regs,
4189 .get_wol = ice_get_wol,
4190 .set_wol = ice_set_wol,
4191 .get_msglevel = ice_get_msglevel,
4192 .set_msglevel = ice_set_msglevel,
4193 .self_test = ice_self_test,
4194 .get_link = ethtool_op_get_link,
4195 .get_eeprom_len = ice_get_eeprom_len,
4196 .get_eeprom = ice_get_eeprom,
4197 .get_coalesce = ice_get_coalesce,
4198 .set_coalesce = ice_set_coalesce,
4199 .get_strings = ice_get_strings,
4200 .set_phys_id = ice_set_phys_id,
4201 .get_ethtool_stats = ice_get_ethtool_stats,
4202 .get_priv_flags = ice_get_priv_flags,
4203 .set_priv_flags = ice_set_priv_flags,
4204 .get_sset_count = ice_get_sset_count,
4205 .get_rxnfc = ice_get_rxnfc,
4206 .set_rxnfc = ice_set_rxnfc,
4207 .get_ringparam = ice_get_ringparam,
4208 .set_ringparam = ice_set_ringparam,
4209 .nway_reset = ice_nway_reset,
4210 .get_pauseparam = ice_get_pauseparam,
4211 .set_pauseparam = ice_set_pauseparam,
4212 .get_rxfh_key_size = ice_get_rxfh_key_size,
4213 .get_rxfh_indir_size = ice_get_rxfh_indir_size,
4214 .get_rxfh_context = ice_get_rxfh_context,
4215 .get_rxfh = ice_get_rxfh,
4216 .set_rxfh = ice_set_rxfh,
4217 .get_channels = ice_get_channels,
4218 .set_channels = ice_set_channels,
4219 .get_ts_info = ice_get_ts_info,
4220 .get_per_queue_coalesce = ice_get_per_q_coalesce,
4221 .set_per_queue_coalesce = ice_set_per_q_coalesce,
4222 .get_fecparam = ice_get_fecparam,
4223 .set_fecparam = ice_set_fecparam,
4224 .get_module_info = ice_get_module_info,
4225 .get_module_eeprom = ice_get_module_eeprom,
4226 };
4227
4228 static const struct ethtool_ops ice_ethtool_safe_mode_ops = {
4229 .get_link_ksettings = ice_get_link_ksettings,
4230 .set_link_ksettings = ice_set_link_ksettings,
4231 .get_drvinfo = ice_get_drvinfo,
4232 .get_regs_len = ice_get_regs_len,
4233 .get_regs = ice_get_regs,
4234 .get_wol = ice_get_wol,
4235 .set_wol = ice_set_wol,
4236 .get_msglevel = ice_get_msglevel,
4237 .set_msglevel = ice_set_msglevel,
4238 .get_link = ethtool_op_get_link,
4239 .get_eeprom_len = ice_get_eeprom_len,
4240 .get_eeprom = ice_get_eeprom,
4241 .get_strings = ice_get_strings,
4242 .get_ethtool_stats = ice_get_ethtool_stats,
4243 .get_sset_count = ice_get_sset_count,
4244 .get_ringparam = ice_get_ringparam,
4245 .set_ringparam = ice_set_ringparam,
4246 .nway_reset = ice_nway_reset,
4247 .get_channels = ice_get_channels,
4248 };
4249
4250 /**
4251 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops
4252 * @netdev: network interface device structure
4253 */
ice_set_ethtool_safe_mode_ops(struct net_device * netdev)4254 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev)
4255 {
4256 netdev->ethtool_ops = &ice_ethtool_safe_mode_ops;
4257 }
4258
4259 static const struct ethtool_ops ice_ethtool_repr_ops = {
4260 .get_drvinfo = ice_repr_get_drvinfo,
4261 .get_link = ethtool_op_get_link,
4262 .get_strings = ice_repr_get_strings,
4263 .get_ethtool_stats = ice_repr_get_ethtool_stats,
4264 .get_sset_count = ice_repr_get_sset_count,
4265 };
4266
4267 /**
4268 * ice_set_ethtool_repr_ops - setup VF's port representor ethtool ops
4269 * @netdev: network interface device structure
4270 */
ice_set_ethtool_repr_ops(struct net_device * netdev)4271 void ice_set_ethtool_repr_ops(struct net_device *netdev)
4272 {
4273 netdev->ethtool_ops = &ice_ethtool_repr_ops;
4274 }
4275
4276 /**
4277 * ice_set_ethtool_ops - setup netdev ethtool ops
4278 * @netdev: network interface device structure
4279 *
4280 * setup netdev ethtool ops with ice specific ops
4281 */
ice_set_ethtool_ops(struct net_device * netdev)4282 void ice_set_ethtool_ops(struct net_device *netdev)
4283 {
4284 netdev->ethtool_ops = &ice_ethtool_ops;
4285 }
4286