1// SPDX-License-Identifier: GPL-2.0-only
2/****************************************************************************
3 * Driver for AMD network controllers and boards
4 * Copyright (C) 2023, Advanced Micro Devices, Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11#include "net_driver.h"
12#include "ef100_nic.h"
13#include "efx_devlink.h"
14#include <linux/rtc.h>
15#include "mcdi.h"
16#include "mcdi_functions.h"
17#include "mcdi_pcol.h"
18#ifdef CONFIG_SFC_SRIOV
19#include "mae.h"
20#include "ef100_rep.h"
21#endif
22
23struct efx_devlink {
24 struct efx_nic *efx;
25};
26
27#ifdef CONFIG_SFC_SRIOV
28
29static int efx_devlink_port_addr_get(struct devlink_port *port, u8 *hw_addr,
30 int *hw_addr_len,
31 struct netlink_ext_ack *extack)
32{
33 struct efx_devlink *devlink = devlink_priv(devlink: port->devlink);
34 struct mae_mport_desc *mport_desc;
35 efx_qword_t pciefn;
36 u32 client_id;
37 int rc = 0;
38
39 mport_desc = container_of(port, struct mae_mport_desc, dl_port);
40
41 if (!ef100_mport_on_local_intf(efx: devlink->efx, mport_desc)) {
42 rc = -EINVAL;
43 NL_SET_ERR_MSG_FMT(extack,
44 "Port not on local interface (mport: %u)",
45 mport_desc->mport_id);
46 goto out;
47 }
48
49 if (ef100_mport_is_vf(mport_desc))
50 EFX_POPULATE_QWORD_3(pciefn,
51 PCIE_FUNCTION_PF, PCIE_FUNCTION_PF_NULL,
52 PCIE_FUNCTION_VF, mport_desc->vf_idx,
53 PCIE_FUNCTION_INTF, PCIE_INTERFACE_CALLER);
54 else
55 EFX_POPULATE_QWORD_3(pciefn,
56 PCIE_FUNCTION_PF, mport_desc->pf_idx,
57 PCIE_FUNCTION_VF, PCIE_FUNCTION_VF_NULL,
58 PCIE_FUNCTION_INTF, PCIE_INTERFACE_CALLER);
59
60 rc = efx_ef100_lookup_client_id(efx: devlink->efx, pciefn, id: &client_id);
61 if (rc) {
62 NL_SET_ERR_MSG_FMT(extack,
63 "No internal client_ID for port (mport: %u)",
64 mport_desc->mport_id);
65 goto out;
66 }
67
68 rc = ef100_get_mac_address(efx: devlink->efx, mac_address: hw_addr, client_handle: client_id, empty_ok: true);
69 if (rc != 0)
70 NL_SET_ERR_MSG_FMT(extack,
71 "No available MAC for port (mport: %u)",
72 mport_desc->mport_id);
73out:
74 *hw_addr_len = ETH_ALEN;
75 return rc;
76}
77
78static int efx_devlink_port_addr_set(struct devlink_port *port,
79 const u8 *hw_addr, int hw_addr_len,
80 struct netlink_ext_ack *extack)
81{
82 MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_CLIENT_MAC_ADDRESSES_IN_LEN(1));
83 struct efx_devlink *devlink = devlink_priv(devlink: port->devlink);
84 struct mae_mport_desc *mport_desc;
85 efx_qword_t pciefn;
86 u32 client_id;
87 int rc;
88
89 mport_desc = container_of(port, struct mae_mport_desc, dl_port);
90
91 if (!ef100_mport_is_vf(mport_desc)) {
92 NL_SET_ERR_MSG_FMT(extack,
93 "port mac change not allowed (mport: %u)",
94 mport_desc->mport_id);
95 return -EPERM;
96 }
97
98 EFX_POPULATE_QWORD_3(pciefn,
99 PCIE_FUNCTION_PF, PCIE_FUNCTION_PF_NULL,
100 PCIE_FUNCTION_VF, mport_desc->vf_idx,
101 PCIE_FUNCTION_INTF, PCIE_INTERFACE_CALLER);
102
103 rc = efx_ef100_lookup_client_id(efx: devlink->efx, pciefn, id: &client_id);
104 if (rc) {
105 NL_SET_ERR_MSG_FMT(extack,
106 "No internal client_ID for port (mport: %u)",
107 mport_desc->mport_id);
108 return rc;
109 }
110
111 MCDI_SET_DWORD(inbuf, SET_CLIENT_MAC_ADDRESSES_IN_CLIENT_HANDLE,
112 client_id);
113
114 ether_addr_copy(MCDI_PTR(inbuf, SET_CLIENT_MAC_ADDRESSES_IN_MAC_ADDRS),
115 src: hw_addr);
116
117 rc = efx_mcdi_rpc(efx: devlink->efx, MC_CMD_SET_CLIENT_MAC_ADDRESSES, inbuf,
118 inlen: sizeof(inbuf), NULL, outlen: 0, NULL);
119 if (rc)
120 NL_SET_ERR_MSG_FMT(extack,
121 "sfc MC_CMD_SET_CLIENT_MAC_ADDRESSES mcdi error (mport: %u)",
122 mport_desc->mport_id);
123
124 return rc;
125}
126
127static const struct devlink_port_ops sfc_devlink_port_ops = {
128 .port_fn_hw_addr_get = efx_devlink_port_addr_get,
129 .port_fn_hw_addr_set = efx_devlink_port_addr_set,
130};
131
132static void efx_devlink_del_port(struct devlink_port *dl_port)
133{
134 if (!dl_port)
135 return;
136 devl_port_unregister(devlink_port: dl_port);
137}
138
139static int efx_devlink_add_port(struct efx_nic *efx,
140 struct mae_mport_desc *mport)
141{
142 bool external = false;
143
144 if (!ef100_mport_on_local_intf(efx, mport_desc: mport))
145 external = true;
146
147 switch (mport->mport_type) {
148 case MAE_MPORT_DESC_MPORT_TYPE_VNIC:
149 if (mport->vf_idx != MAE_MPORT_DESC_VF_IDX_NULL)
150 devlink_port_attrs_pci_vf_set(devlink_port: &mport->dl_port, controller: 0, pf: mport->pf_idx,
151 vf: mport->vf_idx,
152 external);
153 else
154 devlink_port_attrs_pci_pf_set(devlink_port: &mport->dl_port, controller: 0, pf: mport->pf_idx,
155 external);
156 break;
157 default:
158 /* MAE_MPORT_DESC_MPORT_ALIAS and UNDEFINED */
159 return 0;
160 }
161
162 mport->dl_port.index = mport->mport_id;
163
164 return devl_port_register_with_ops(devlink: efx->devlink, devlink_port: &mport->dl_port,
165 port_index: mport->mport_id,
166 ops: &sfc_devlink_port_ops);
167}
168
169#endif
170
171static int efx_devlink_info_nvram_partition(struct efx_nic *efx,
172 struct devlink_info_req *req,
173 unsigned int partition_type,
174 const char *version_name)
175{
176 char buf[EFX_MAX_VERSION_INFO_LEN];
177 u16 version[4];
178 int rc;
179
180 rc = efx_mcdi_nvram_metadata(efx, type: partition_type, NULL, version, NULL,
181 descsize: 0);
182
183 /* If the partition does not exist, that is not an error. */
184 if (rc == -ENOENT)
185 return 0;
186
187 if (rc) {
188 netif_err(efx, drv, efx->net_dev, "mcdi nvram %s: failed (rc=%d)\n",
189 version_name, rc);
190 return rc;
191 }
192
193 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u", version[0],
194 version[1], version[2], version[3]);
195 devlink_info_version_stored_put(req, version_name, version_value: buf);
196
197 return 0;
198}
199
200static int efx_devlink_info_stored_versions(struct efx_nic *efx,
201 struct devlink_info_req *req)
202{
203 int err;
204
205 /* We do not care here about the specific error but just if an error
206 * happened. The specific error will be reported inside the call
207 * through system messages, and if any error happened in any call
208 * below, we report it through extack.
209 */
210 err = efx_devlink_info_nvram_partition(efx, req,
211 NVRAM_PARTITION_TYPE_BUNDLE,
212 DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID);
213
214 err |= efx_devlink_info_nvram_partition(efx, req,
215 NVRAM_PARTITION_TYPE_MC_FIRMWARE,
216 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT);
217
218 err |= efx_devlink_info_nvram_partition(efx, req,
219 NVRAM_PARTITION_TYPE_SUC_FIRMWARE,
220 EFX_DEVLINK_INFO_VERSION_FW_MGMT_SUC);
221
222 err |= efx_devlink_info_nvram_partition(efx, req,
223 NVRAM_PARTITION_TYPE_EXPANSION_ROM,
224 EFX_DEVLINK_INFO_VERSION_FW_EXPROM);
225
226 err |= efx_devlink_info_nvram_partition(efx, req,
227 NVRAM_PARTITION_TYPE_EXPANSION_UEFI,
228 EFX_DEVLINK_INFO_VERSION_FW_UEFI);
229 return err;
230}
231
232#define EFX_VER_FLAG(_f) \
233 (MC_CMD_GET_VERSION_V5_OUT_ ## _f ## _PRESENT_LBN)
234
235static void efx_devlink_info_running_v2(struct efx_nic *efx,
236 struct devlink_info_req *req,
237 unsigned int flags, efx_dword_t *outbuf)
238{
239 char buf[EFX_MAX_VERSION_INFO_LEN];
240 union {
241 const __le32 *dwords;
242 const __le16 *words;
243 const char *str;
244 } ver;
245 struct rtc_time build_date;
246 unsigned int build_id;
247 size_t offset;
248 __maybe_unused u64 tstamp;
249
250 if (flags & BIT(EFX_VER_FLAG(BOARD_EXT_INFO))) {
251 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%s",
252 MCDI_PTR(outbuf, GET_VERSION_V2_OUT_BOARD_NAME));
253 devlink_info_version_fixed_put(req,
254 DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
255 version_value: buf);
256
257 /* Favour full board version if present (in V5 or later) */
258 if (~flags & BIT(EFX_VER_FLAG(BOARD_VERSION))) {
259 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u",
260 MCDI_DWORD(outbuf,
261 GET_VERSION_V2_OUT_BOARD_REVISION));
262 devlink_info_version_fixed_put(req,
263 DEVLINK_INFO_VERSION_GENERIC_BOARD_REV,
264 version_value: buf);
265 }
266
267 ver.str = MCDI_PTR(outbuf, GET_VERSION_V2_OUT_BOARD_SERIAL);
268 if (ver.str[0])
269 devlink_info_board_serial_number_put(req, bsn: ver.str);
270 }
271
272 if (flags & BIT(EFX_VER_FLAG(FPGA_EXT_INFO))) {
273 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
274 GET_VERSION_V2_OUT_FPGA_VERSION);
275 offset = snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u_%c%u",
276 le32_to_cpu(ver.dwords[0]),
277 'A' + le32_to_cpu(ver.dwords[1]),
278 le32_to_cpu(ver.dwords[2]));
279
280 ver.str = MCDI_PTR(outbuf, GET_VERSION_V2_OUT_FPGA_EXTRA);
281 if (ver.str[0])
282 snprintf(buf: &buf[offset], EFX_MAX_VERSION_INFO_LEN - offset,
283 fmt: " (%s)", ver.str);
284
285 devlink_info_version_running_put(req,
286 EFX_DEVLINK_INFO_VERSION_FPGA_REV,
287 version_value: buf);
288 }
289
290 if (flags & BIT(EFX_VER_FLAG(CMC_EXT_INFO))) {
291 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
292 GET_VERSION_V2_OUT_CMCFW_VERSION);
293 offset = snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
294 le32_to_cpu(ver.dwords[0]),
295 le32_to_cpu(ver.dwords[1]),
296 le32_to_cpu(ver.dwords[2]),
297 le32_to_cpu(ver.dwords[3]));
298
299#ifdef CONFIG_RTC_LIB
300 tstamp = MCDI_QWORD(outbuf,
301 GET_VERSION_V2_OUT_CMCFW_BUILD_DATE);
302 if (tstamp) {
303 rtc_time64_to_tm(time: tstamp, tm: &build_date);
304 snprintf(buf: &buf[offset], EFX_MAX_VERSION_INFO_LEN - offset,
305 fmt: " (%ptRd)", &build_date);
306 }
307#endif
308
309 devlink_info_version_running_put(req,
310 EFX_DEVLINK_INFO_VERSION_FW_MGMT_CMC,
311 version_value: buf);
312 }
313
314 ver.words = (__le16 *)MCDI_PTR(outbuf, GET_VERSION_V2_OUT_VERSION);
315 offset = snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
316 le16_to_cpu(ver.words[0]), le16_to_cpu(ver.words[1]),
317 le16_to_cpu(ver.words[2]), le16_to_cpu(ver.words[3]));
318 if (flags & BIT(EFX_VER_FLAG(MCFW_EXT_INFO))) {
319 build_id = MCDI_DWORD(outbuf, GET_VERSION_V2_OUT_MCFW_BUILD_ID);
320 snprintf(buf: &buf[offset], EFX_MAX_VERSION_INFO_LEN - offset,
321 fmt: " (%x) %s", build_id,
322 MCDI_PTR(outbuf, GET_VERSION_V2_OUT_MCFW_BUILD_NAME));
323 }
324 devlink_info_version_running_put(req,
325 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT,
326 version_value: buf);
327
328 if (flags & BIT(EFX_VER_FLAG(SUCFW_EXT_INFO))) {
329 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
330 GET_VERSION_V2_OUT_SUCFW_VERSION);
331#ifdef CONFIG_RTC_LIB
332 tstamp = MCDI_QWORD(outbuf,
333 GET_VERSION_V2_OUT_SUCFW_BUILD_DATE);
334 rtc_time64_to_tm(time: tstamp, tm: &build_date);
335#else
336 memset(&build_date, 0, sizeof(build_date));
337#endif
338 build_id = MCDI_DWORD(outbuf, GET_VERSION_V2_OUT_SUCFW_CHIP_ID);
339
340 snprintf(buf, EFX_MAX_VERSION_INFO_LEN,
341 fmt: "%u.%u.%u.%u type %x (%ptRd)",
342 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
343 le32_to_cpu(ver.dwords[2]), le32_to_cpu(ver.dwords[3]),
344 build_id, &build_date);
345
346 devlink_info_version_running_put(req,
347 EFX_DEVLINK_INFO_VERSION_FW_MGMT_SUC,
348 version_value: buf);
349 }
350}
351
352static void efx_devlink_info_running_v3(struct efx_nic *efx,
353 struct devlink_info_req *req,
354 unsigned int flags, efx_dword_t *outbuf)
355{
356 char buf[EFX_MAX_VERSION_INFO_LEN];
357 union {
358 const __le32 *dwords;
359 const __le16 *words;
360 const char *str;
361 } ver;
362
363 if (flags & BIT(EFX_VER_FLAG(DATAPATH_HW_VERSION))) {
364 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
365 GET_VERSION_V3_OUT_DATAPATH_HW_VERSION);
366
367 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u",
368 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
369 le32_to_cpu(ver.dwords[2]));
370
371 devlink_info_version_running_put(req,
372 EFX_DEVLINK_INFO_VERSION_DATAPATH_HW,
373 version_value: buf);
374 }
375
376 if (flags & BIT(EFX_VER_FLAG(DATAPATH_FW_VERSION))) {
377 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
378 GET_VERSION_V3_OUT_DATAPATH_FW_VERSION);
379
380 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u",
381 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
382 le32_to_cpu(ver.dwords[2]));
383
384 devlink_info_version_running_put(req,
385 EFX_DEVLINK_INFO_VERSION_DATAPATH_FW,
386 version_value: buf);
387 }
388}
389
390static void efx_devlink_info_running_v4(struct efx_nic *efx,
391 struct devlink_info_req *req,
392 unsigned int flags, efx_dword_t *outbuf)
393{
394 char buf[EFX_MAX_VERSION_INFO_LEN];
395 union {
396 const __le32 *dwords;
397 const __le16 *words;
398 const char *str;
399 } ver;
400
401 if (flags & BIT(EFX_VER_FLAG(SOC_BOOT_VERSION))) {
402 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
403 GET_VERSION_V4_OUT_SOC_BOOT_VERSION);
404
405 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
406 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
407 le32_to_cpu(ver.dwords[2]),
408 le32_to_cpu(ver.dwords[3]));
409
410 devlink_info_version_running_put(req,
411 EFX_DEVLINK_INFO_VERSION_SOC_BOOT,
412 version_value: buf);
413 }
414
415 if (flags & BIT(EFX_VER_FLAG(SOC_UBOOT_VERSION))) {
416 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
417 GET_VERSION_V4_OUT_SOC_UBOOT_VERSION);
418
419 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
420 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
421 le32_to_cpu(ver.dwords[2]),
422 le32_to_cpu(ver.dwords[3]));
423
424 devlink_info_version_running_put(req,
425 EFX_DEVLINK_INFO_VERSION_SOC_UBOOT,
426 version_value: buf);
427 }
428
429 if (flags & BIT(EFX_VER_FLAG(SOC_MAIN_ROOTFS_VERSION))) {
430 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
431 GET_VERSION_V4_OUT_SOC_MAIN_ROOTFS_VERSION);
432
433 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
434 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
435 le32_to_cpu(ver.dwords[2]),
436 le32_to_cpu(ver.dwords[3]));
437
438 devlink_info_version_running_put(req,
439 EFX_DEVLINK_INFO_VERSION_SOC_MAIN,
440 version_value: buf);
441 }
442
443 if (flags & BIT(EFX_VER_FLAG(SOC_RECOVERY_BUILDROOT_VERSION))) {
444 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
445 GET_VERSION_V4_OUT_SOC_RECOVERY_BUILDROOT_VERSION);
446
447 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
448 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
449 le32_to_cpu(ver.dwords[2]),
450 le32_to_cpu(ver.dwords[3]));
451
452 devlink_info_version_running_put(req,
453 EFX_DEVLINK_INFO_VERSION_SOC_RECOVERY,
454 version_value: buf);
455 }
456
457 if (flags & BIT(EFX_VER_FLAG(SUCFW_VERSION)) &&
458 ~flags & BIT(EFX_VER_FLAG(SUCFW_EXT_INFO))) {
459 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
460 GET_VERSION_V4_OUT_SUCFW_VERSION);
461
462 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
463 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
464 le32_to_cpu(ver.dwords[2]),
465 le32_to_cpu(ver.dwords[3]));
466
467 devlink_info_version_running_put(req,
468 EFX_DEVLINK_INFO_VERSION_FW_MGMT_SUC,
469 version_value: buf);
470 }
471}
472
473static void efx_devlink_info_running_v5(struct efx_nic *efx,
474 struct devlink_info_req *req,
475 unsigned int flags, efx_dword_t *outbuf)
476{
477 char buf[EFX_MAX_VERSION_INFO_LEN];
478 union {
479 const __le32 *dwords;
480 const __le16 *words;
481 const char *str;
482 } ver;
483
484 if (flags & BIT(EFX_VER_FLAG(BOARD_VERSION))) {
485 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
486 GET_VERSION_V5_OUT_BOARD_VERSION);
487
488 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
489 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
490 le32_to_cpu(ver.dwords[2]),
491 le32_to_cpu(ver.dwords[3]));
492
493 devlink_info_version_running_put(req,
494 DEVLINK_INFO_VERSION_GENERIC_BOARD_REV,
495 version_value: buf);
496 }
497
498 if (flags & BIT(EFX_VER_FLAG(BUNDLE_VERSION))) {
499 ver.dwords = (__le32 *)MCDI_PTR(outbuf,
500 GET_VERSION_V5_OUT_BUNDLE_VERSION);
501
502 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
503 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),
504 le32_to_cpu(ver.dwords[2]),
505 le32_to_cpu(ver.dwords[3]));
506
507 devlink_info_version_running_put(req,
508 DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID,
509 version_value: buf);
510 }
511}
512
513static int efx_devlink_info_running_versions(struct efx_nic *efx,
514 struct devlink_info_req *req)
515{
516 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_VERSION_V5_OUT_LEN);
517 MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_VERSION_EXT_IN_LEN);
518 char buf[EFX_MAX_VERSION_INFO_LEN];
519 union {
520 const __le32 *dwords;
521 const __le16 *words;
522 const char *str;
523 } ver;
524 size_t outlength;
525 unsigned int flags;
526 int rc;
527
528 rc = efx_mcdi_rpc(efx, MC_CMD_GET_VERSION, inbuf, inlen: sizeof(inbuf),
529 outbuf, outlen: sizeof(outbuf), outlen_actual: &outlength);
530 if (rc || outlength < MC_CMD_GET_VERSION_OUT_LEN) {
531 netif_err(efx, drv, efx->net_dev,
532 "mcdi MC_CMD_GET_VERSION failed\n");
533 return rc;
534 }
535
536 /* Handle previous output */
537 if (outlength < MC_CMD_GET_VERSION_V2_OUT_LEN) {
538 ver.words = (__le16 *)MCDI_PTR(outbuf,
539 GET_VERSION_EXT_OUT_VERSION);
540 snprintf(buf, EFX_MAX_VERSION_INFO_LEN, fmt: "%u.%u.%u.%u",
541 le16_to_cpu(ver.words[0]),
542 le16_to_cpu(ver.words[1]),
543 le16_to_cpu(ver.words[2]),
544 le16_to_cpu(ver.words[3]));
545
546 devlink_info_version_running_put(req,
547 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT,
548 version_value: buf);
549 return 0;
550 }
551
552 /* Handle V2 additions */
553 flags = MCDI_DWORD(outbuf, GET_VERSION_V2_OUT_FLAGS);
554 efx_devlink_info_running_v2(efx, req, flags, outbuf);
555
556 if (outlength < MC_CMD_GET_VERSION_V3_OUT_LEN)
557 return 0;
558
559 /* Handle V3 additions */
560 efx_devlink_info_running_v3(efx, req, flags, outbuf);
561
562 if (outlength < MC_CMD_GET_VERSION_V4_OUT_LEN)
563 return 0;
564
565 /* Handle V4 additions */
566 efx_devlink_info_running_v4(efx, req, flags, outbuf);
567
568 if (outlength < MC_CMD_GET_VERSION_V5_OUT_LEN)
569 return 0;
570
571 /* Handle V5 additions */
572 efx_devlink_info_running_v5(efx, req, flags, outbuf);
573
574 return 0;
575}
576
577#define EFX_MAX_SERIALNUM_LEN (ETH_ALEN * 2 + 1)
578
579static int efx_devlink_info_board_cfg(struct efx_nic *efx,
580 struct devlink_info_req *req)
581{
582 char sn[EFX_MAX_SERIALNUM_LEN];
583 u8 mac_address[ETH_ALEN];
584 int rc;
585
586 rc = efx_mcdi_get_board_cfg(efx, mac_address: (u8 *)mac_address, NULL, NULL);
587 if (!rc) {
588 snprintf(buf: sn, EFX_MAX_SERIALNUM_LEN, fmt: "%pm", mac_address);
589 devlink_info_serial_number_put(req, sn);
590 }
591 return rc;
592}
593
594static int efx_devlink_info_get(struct devlink *devlink,
595 struct devlink_info_req *req,
596 struct netlink_ext_ack *extack)
597{
598 struct efx_devlink *devlink_private = devlink_priv(devlink);
599 struct efx_nic *efx = devlink_private->efx;
600 int err;
601
602 /* Several different MCDI commands are used. We report if errors
603 * happened through extack. Specific error information via system
604 * messages inside the calls.
605 */
606 err = efx_devlink_info_board_cfg(efx, req);
607
608 err |= efx_devlink_info_stored_versions(efx, req);
609
610 err |= efx_devlink_info_running_versions(efx, req);
611
612 if (err)
613 NL_SET_ERR_MSG_MOD(extack, "Errors when getting device info. Check system messages");
614
615 return 0;
616}
617
618static const struct devlink_ops sfc_devlink_ops = {
619 .info_get = efx_devlink_info_get,
620};
621
622#ifdef CONFIG_SFC_SRIOV
623static struct devlink_port *ef100_set_devlink_port(struct efx_nic *efx, u32 idx)
624{
625 struct mae_mport_desc *mport;
626 u32 id;
627 int rc;
628
629 if (!efx->mae)
630 return NULL;
631
632 if (efx_mae_lookup_mport(efx, vf: idx, id: &id)) {
633 /* This should not happen. */
634 if (idx == MAE_MPORT_DESC_VF_IDX_NULL)
635 pci_warn_once(efx->pci_dev, "No mport ID found for PF.\n");
636 else
637 pci_warn_once(efx->pci_dev, "No mport ID found for VF %u.\n",
638 idx);
639 return NULL;
640 }
641
642 mport = efx_mae_get_mport(efx, mport_id: id);
643 if (!mport) {
644 /* This should not happen. */
645 if (idx == MAE_MPORT_DESC_VF_IDX_NULL)
646 pci_warn_once(efx->pci_dev, "No mport found for PF.\n");
647 else
648 pci_warn_once(efx->pci_dev, "No mport found for VF %u.\n",
649 idx);
650 return NULL;
651 }
652
653 rc = efx_devlink_add_port(efx, mport);
654 if (rc) {
655 if (idx == MAE_MPORT_DESC_VF_IDX_NULL)
656 pci_warn(efx->pci_dev,
657 "devlink port creation for PF failed.\n");
658 else
659 pci_warn(efx->pci_dev,
660 "devlink_port creation for VF %u failed.\n",
661 idx);
662 return NULL;
663 }
664
665 return &mport->dl_port;
666}
667
668void ef100_rep_set_devlink_port(struct efx_rep *efv)
669{
670 efv->dl_port = ef100_set_devlink_port(efx: efv->parent, idx: efv->idx);
671}
672
673void ef100_pf_set_devlink_port(struct efx_nic *efx)
674{
675 efx->dl_port = ef100_set_devlink_port(efx, MAE_MPORT_DESC_VF_IDX_NULL);
676}
677
678void ef100_rep_unset_devlink_port(struct efx_rep *efv)
679{
680 efx_devlink_del_port(dl_port: efv->dl_port);
681}
682
683void ef100_pf_unset_devlink_port(struct efx_nic *efx)
684{
685 efx_devlink_del_port(dl_port: efx->dl_port);
686}
687#endif
688
689void efx_fini_devlink_lock(struct efx_nic *efx)
690{
691 if (efx->devlink)
692 devl_lock(devlink: efx->devlink);
693}
694
695void efx_fini_devlink_and_unlock(struct efx_nic *efx)
696{
697 if (efx->devlink) {
698 devl_unregister(devlink: efx->devlink);
699 devl_unlock(devlink: efx->devlink);
700 devlink_free(devlink: efx->devlink);
701 efx->devlink = NULL;
702 }
703}
704
705int efx_probe_devlink_and_lock(struct efx_nic *efx)
706{
707 struct efx_devlink *devlink_private;
708
709 if (efx->type->is_vf)
710 return 0;
711
712 efx->devlink = devlink_alloc(ops: &sfc_devlink_ops,
713 priv_size: sizeof(struct efx_devlink),
714 dev: &efx->pci_dev->dev);
715 if (!efx->devlink)
716 return -ENOMEM;
717
718 devl_lock(devlink: efx->devlink);
719 devlink_private = devlink_priv(devlink: efx->devlink);
720 devlink_private->efx = efx;
721
722 devl_register(devlink: efx->devlink);
723
724 return 0;
725}
726
727void efx_probe_devlink_unlock(struct efx_nic *efx)
728{
729 if (!efx->devlink)
730 return;
731
732 devl_unlock(devlink: efx->devlink);
733}
734

source code of linux/drivers/net/ethernet/sfc/efx_devlink.c