1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /**************************************************************************** |
3 | * Driver for Solarflare network controllers and boards |
4 | * Copyright 2019 Solarflare Communications Inc. |
5 | * Copyright 2020-2022 Xilinx Inc. |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it |
8 | * under the terms of the GNU General Public License version 2 as published |
9 | * by the Free Software Foundation, incorporated herein by reference. |
10 | */ |
11 | |
12 | #include <linux/rhashtable.h> |
13 | #include "ef100_nic.h" |
14 | #include "mae.h" |
15 | #include "mcdi.h" |
16 | #include "mcdi_pcol.h" |
17 | #include "mcdi_pcol_mae.h" |
18 | #include "tc_encap_actions.h" |
19 | #include "tc_conntrack.h" |
20 | |
21 | int efx_mae_allocate_mport(struct efx_nic *efx, u32 *id, u32 *label) |
22 | { |
23 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_MPORT_ALLOC_ALIAS_OUT_LEN); |
24 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_ALLOC_ALIAS_IN_LEN); |
25 | size_t outlen; |
26 | int rc; |
27 | |
28 | if (WARN_ON_ONCE(!id)) |
29 | return -EINVAL; |
30 | if (WARN_ON_ONCE(!label)) |
31 | return -EINVAL; |
32 | |
33 | MCDI_SET_DWORD(inbuf, MAE_MPORT_ALLOC_ALIAS_IN_TYPE, |
34 | MC_CMD_MAE_MPORT_ALLOC_ALIAS_IN_MPORT_TYPE_ALIAS); |
35 | MCDI_SET_DWORD(inbuf, MAE_MPORT_ALLOC_ALIAS_IN_DELIVER_MPORT, |
36 | MAE_MPORT_SELECTOR_ASSIGNED); |
37 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_MPORT_ALLOC, inbuf, inlen: sizeof(inbuf), |
38 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
39 | if (rc) |
40 | return rc; |
41 | if (outlen < sizeof(outbuf)) |
42 | return -EIO; |
43 | *id = MCDI_DWORD(outbuf, MAE_MPORT_ALLOC_ALIAS_OUT_MPORT_ID); |
44 | *label = MCDI_DWORD(outbuf, MAE_MPORT_ALLOC_ALIAS_OUT_LABEL); |
45 | return 0; |
46 | } |
47 | |
48 | int efx_mae_free_mport(struct efx_nic *efx, u32 id) |
49 | { |
50 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_FREE_IN_LEN); |
51 | |
52 | BUILD_BUG_ON(MC_CMD_MAE_MPORT_FREE_OUT_LEN); |
53 | MCDI_SET_DWORD(inbuf, MAE_MPORT_FREE_IN_MPORT_ID, id); |
54 | return efx_mcdi_rpc(efx, MC_CMD_MAE_MPORT_FREE, inbuf, inlen: sizeof(inbuf), |
55 | NULL, outlen: 0, NULL); |
56 | } |
57 | |
58 | void efx_mae_mport_wire(struct efx_nic *efx, u32 *out) |
59 | { |
60 | efx_dword_t mport; |
61 | |
62 | EFX_POPULATE_DWORD_2(mport, |
63 | MAE_MPORT_SELECTOR_TYPE, MAE_MPORT_SELECTOR_TYPE_PPORT, |
64 | MAE_MPORT_SELECTOR_PPORT_ID, efx->port_num); |
65 | *out = EFX_DWORD_VAL(mport); |
66 | } |
67 | |
68 | void efx_mae_mport_uplink(struct efx_nic *efx __always_unused, u32 *out) |
69 | { |
70 | efx_dword_t mport; |
71 | |
72 | EFX_POPULATE_DWORD_3(mport, |
73 | MAE_MPORT_SELECTOR_TYPE, MAE_MPORT_SELECTOR_TYPE_FUNC, |
74 | MAE_MPORT_SELECTOR_FUNC_PF_ID, MAE_MPORT_SELECTOR_FUNC_PF_ID_CALLER, |
75 | MAE_MPORT_SELECTOR_FUNC_VF_ID, MAE_MPORT_SELECTOR_FUNC_VF_ID_NULL); |
76 | *out = EFX_DWORD_VAL(mport); |
77 | } |
78 | |
79 | void efx_mae_mport_vf(struct efx_nic *efx __always_unused, u32 vf_id, u32 *out) |
80 | { |
81 | efx_dword_t mport; |
82 | |
83 | EFX_POPULATE_DWORD_3(mport, |
84 | MAE_MPORT_SELECTOR_TYPE, MAE_MPORT_SELECTOR_TYPE_FUNC, |
85 | MAE_MPORT_SELECTOR_FUNC_PF_ID, MAE_MPORT_SELECTOR_FUNC_PF_ID_CALLER, |
86 | MAE_MPORT_SELECTOR_FUNC_VF_ID, vf_id); |
87 | *out = EFX_DWORD_VAL(mport); |
88 | } |
89 | |
90 | /* Constructs an mport selector from an mport ID, because they're not the same */ |
91 | void efx_mae_mport_mport(struct efx_nic *efx __always_unused, u32 mport_id, u32 *out) |
92 | { |
93 | efx_dword_t mport; |
94 | |
95 | EFX_POPULATE_DWORD_2(mport, |
96 | MAE_MPORT_SELECTOR_TYPE, MAE_MPORT_SELECTOR_TYPE_MPORT_ID, |
97 | MAE_MPORT_SELECTOR_MPORT_ID, mport_id); |
98 | *out = EFX_DWORD_VAL(mport); |
99 | } |
100 | |
101 | /* id is really only 24 bits wide */ |
102 | int efx_mae_fw_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id) |
103 | { |
104 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_MPORT_LOOKUP_OUT_LEN); |
105 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_LOOKUP_IN_LEN); |
106 | size_t outlen; |
107 | int rc; |
108 | |
109 | MCDI_SET_DWORD(inbuf, MAE_MPORT_LOOKUP_IN_MPORT_SELECTOR, selector); |
110 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_MPORT_LOOKUP, inbuf, inlen: sizeof(inbuf), |
111 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
112 | if (rc) |
113 | return rc; |
114 | if (outlen < sizeof(outbuf)) |
115 | return -EIO; |
116 | *id = MCDI_DWORD(outbuf, MAE_MPORT_LOOKUP_OUT_MPORT_ID); |
117 | return 0; |
118 | } |
119 | |
120 | int efx_mae_start_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue) |
121 | { |
122 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_COUNTERS_STREAM_START_V2_IN_LEN); |
123 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_COUNTERS_STREAM_START_OUT_LEN); |
124 | u32 out_flags; |
125 | size_t outlen; |
126 | int rc; |
127 | |
128 | MCDI_SET_WORD(inbuf, MAE_COUNTERS_STREAM_START_V2_IN_QID, |
129 | efx_rx_queue_index(rx_queue)); |
130 | MCDI_SET_WORD(inbuf, MAE_COUNTERS_STREAM_START_V2_IN_PACKET_SIZE, |
131 | efx->net_dev->mtu); |
132 | MCDI_SET_DWORD(inbuf, MAE_COUNTERS_STREAM_START_V2_IN_COUNTER_TYPES_MASK, |
133 | BIT(MAE_COUNTER_TYPE_AR) | BIT(MAE_COUNTER_TYPE_CT) | |
134 | BIT(MAE_COUNTER_TYPE_OR)); |
135 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_COUNTERS_STREAM_START, |
136 | inbuf, inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
137 | if (rc) |
138 | return rc; |
139 | if (outlen < sizeof(outbuf)) |
140 | return -EIO; |
141 | out_flags = MCDI_DWORD(outbuf, MAE_COUNTERS_STREAM_START_OUT_FLAGS); |
142 | if (out_flags & BIT(MC_CMD_MAE_COUNTERS_STREAM_START_OUT_USES_CREDITS_OFST)) { |
143 | netif_dbg(efx, drv, efx->net_dev, |
144 | "MAE counter stream uses credits\n" ); |
145 | rx_queue->grant_credits = true; |
146 | out_flags &= ~BIT(MC_CMD_MAE_COUNTERS_STREAM_START_OUT_USES_CREDITS_OFST); |
147 | } |
148 | if (out_flags) { |
149 | netif_err(efx, drv, efx->net_dev, |
150 | "MAE counter stream start: unrecognised flags %x\n" , |
151 | out_flags); |
152 | goto out_stop; |
153 | } |
154 | return 0; |
155 | out_stop: |
156 | efx_mae_stop_counters(efx, rx_queue); |
157 | return -EOPNOTSUPP; |
158 | } |
159 | |
160 | static bool efx_mae_counters_flushed(u32 *flush_gen, u32 *seen_gen) |
161 | { |
162 | int i; |
163 | |
164 | for (i = 0; i < EFX_TC_COUNTER_TYPE_MAX; i++) |
165 | if ((s32)(flush_gen[i] - seen_gen[i]) > 0) |
166 | return false; |
167 | return true; |
168 | } |
169 | |
170 | int efx_mae_stop_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue) |
171 | { |
172 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_COUNTERS_STREAM_STOP_V2_OUT_LENMAX); |
173 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_COUNTERS_STREAM_STOP_IN_LEN); |
174 | size_t outlen; |
175 | int rc, i; |
176 | |
177 | MCDI_SET_WORD(inbuf, MAE_COUNTERS_STREAM_STOP_IN_QID, |
178 | efx_rx_queue_index(rx_queue)); |
179 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_COUNTERS_STREAM_STOP, |
180 | inbuf, inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
181 | |
182 | if (rc) |
183 | return rc; |
184 | |
185 | netif_dbg(efx, drv, efx->net_dev, "Draining counters:\n" ); |
186 | /* Only process received generation counts */ |
187 | for (i = 0; (i < (outlen / 4)) && (i < EFX_TC_COUNTER_TYPE_MAX); i++) { |
188 | efx->tc->flush_gen[i] = MCDI_ARRAY_DWORD(outbuf, |
189 | MAE_COUNTERS_STREAM_STOP_V2_OUT_GENERATION_COUNT, |
190 | i); |
191 | netif_dbg(efx, drv, efx->net_dev, |
192 | "\ttype %u, awaiting gen %u\n" , i, |
193 | efx->tc->flush_gen[i]); |
194 | } |
195 | |
196 | efx->tc->flush_counters = true; |
197 | |
198 | /* Drain can take up to 2 seconds owing to FWRIVERHD-2884; whatever |
199 | * timeout we use, that delay is added to unload on nonresponsive |
200 | * hardware, so 2500ms seems like a reasonable compromise. |
201 | */ |
202 | if (!wait_event_timeout(efx->tc->flush_wq, |
203 | efx_mae_counters_flushed(efx->tc->flush_gen, |
204 | efx->tc->seen_gen), |
205 | msecs_to_jiffies(2500))) |
206 | netif_warn(efx, drv, efx->net_dev, |
207 | "Failed to drain counters RXQ, FW may be unhappy\n" ); |
208 | |
209 | efx->tc->flush_counters = false; |
210 | |
211 | return rc; |
212 | } |
213 | |
214 | void efx_mae_counters_grant_credits(struct work_struct *work) |
215 | { |
216 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_COUNTERS_STREAM_GIVE_CREDITS_IN_LEN); |
217 | struct efx_rx_queue *rx_queue = container_of(work, struct efx_rx_queue, |
218 | grant_work); |
219 | struct efx_nic *efx = rx_queue->efx; |
220 | unsigned int credits; |
221 | |
222 | BUILD_BUG_ON(MC_CMD_MAE_COUNTERS_STREAM_GIVE_CREDITS_OUT_LEN); |
223 | credits = READ_ONCE(rx_queue->notified_count) - rx_queue->granted_count; |
224 | MCDI_SET_DWORD(inbuf, MAE_COUNTERS_STREAM_GIVE_CREDITS_IN_NUM_CREDITS, |
225 | credits); |
226 | if (!efx_mcdi_rpc(efx, MC_CMD_MAE_COUNTERS_STREAM_GIVE_CREDITS, |
227 | inbuf, inlen: sizeof(inbuf), NULL, outlen: 0, NULL)) |
228 | rx_queue->granted_count += credits; |
229 | } |
230 | |
231 | static int efx_mae_table_get_desc(struct efx_nic *efx, |
232 | struct efx_tc_table_desc *desc, |
233 | u32 table_id) |
234 | { |
235 | MCDI_DECLARE_BUF(outbuf, MC_CMD_TABLE_DESCRIPTOR_OUT_LEN(16)); |
236 | MCDI_DECLARE_BUF(inbuf, MC_CMD_TABLE_DESCRIPTOR_IN_LEN); |
237 | unsigned int offset = 0, i; |
238 | size_t outlen; |
239 | int rc; |
240 | |
241 | memset(desc, 0, sizeof(*desc)); |
242 | |
243 | MCDI_SET_DWORD(inbuf, TABLE_DESCRIPTOR_IN_TABLE_ID, table_id); |
244 | more: |
245 | MCDI_SET_DWORD(inbuf, TABLE_DESCRIPTOR_IN_FIRST_FIELDS_INDEX, offset); |
246 | rc = efx_mcdi_rpc(efx, MC_CMD_TABLE_DESCRIPTOR, inbuf, inlen: sizeof(inbuf), |
247 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
248 | if (rc) |
249 | goto fail; |
250 | if (outlen < MC_CMD_TABLE_DESCRIPTOR_OUT_LEN(1)) { |
251 | rc = -EIO; |
252 | goto fail; |
253 | } |
254 | if (!offset) { /* first iteration: get metadata */ |
255 | desc->type = MCDI_WORD(outbuf, TABLE_DESCRIPTOR_OUT_TYPE); |
256 | desc->key_width = MCDI_WORD(outbuf, TABLE_DESCRIPTOR_OUT_KEY_WIDTH); |
257 | desc->resp_width = MCDI_WORD(outbuf, TABLE_DESCRIPTOR_OUT_RESP_WIDTH); |
258 | desc->n_keys = MCDI_WORD(outbuf, TABLE_DESCRIPTOR_OUT_N_KEY_FIELDS); |
259 | desc->n_resps = MCDI_WORD(outbuf, TABLE_DESCRIPTOR_OUT_N_RESP_FIELDS); |
260 | desc->n_prios = MCDI_WORD(outbuf, TABLE_DESCRIPTOR_OUT_N_PRIORITIES); |
261 | desc->flags = MCDI_BYTE(outbuf, TABLE_DESCRIPTOR_OUT_FLAGS); |
262 | rc = -EOPNOTSUPP; |
263 | if (desc->flags) |
264 | goto fail; |
265 | desc->scheme = MCDI_BYTE(outbuf, TABLE_DESCRIPTOR_OUT_SCHEME); |
266 | if (desc->scheme) |
267 | goto fail; |
268 | rc = -ENOMEM; |
269 | desc->keys = kcalloc(n: desc->n_keys, |
270 | size: sizeof(struct efx_tc_table_field_fmt), |
271 | GFP_KERNEL); |
272 | if (!desc->keys) |
273 | goto fail; |
274 | desc->resps = kcalloc(n: desc->n_resps, |
275 | size: sizeof(struct efx_tc_table_field_fmt), |
276 | GFP_KERNEL); |
277 | if (!desc->resps) |
278 | goto fail; |
279 | } |
280 | /* FW could have returned more than the 16 field_descrs we |
281 | * made room for in our outbuf |
282 | */ |
283 | outlen = min(outlen, sizeof(outbuf)); |
284 | for (i = 0; i + offset < desc->n_keys + desc->n_resps; i++) { |
285 | struct efx_tc_table_field_fmt *field; |
286 | MCDI_DECLARE_STRUCT_PTR(fdesc); |
287 | |
288 | if (outlen < MC_CMD_TABLE_DESCRIPTOR_OUT_LEN(i + 1)) { |
289 | offset += i; |
290 | goto more; |
291 | } |
292 | if (i + offset < desc->n_keys) |
293 | field = desc->keys + i + offset; |
294 | else |
295 | field = desc->resps + (i + offset - desc->n_keys); |
296 | fdesc = MCDI_ARRAY_STRUCT_PTR(outbuf, |
297 | TABLE_DESCRIPTOR_OUT_FIELDS, i); |
298 | field->field_id = MCDI_STRUCT_WORD(fdesc, |
299 | TABLE_FIELD_DESCR_FIELD_ID); |
300 | field->lbn = MCDI_STRUCT_WORD(fdesc, TABLE_FIELD_DESCR_LBN); |
301 | field->width = MCDI_STRUCT_WORD(fdesc, TABLE_FIELD_DESCR_WIDTH); |
302 | field->masking = MCDI_STRUCT_BYTE(fdesc, TABLE_FIELD_DESCR_MASK_TYPE); |
303 | field->scheme = MCDI_STRUCT_BYTE(fdesc, TABLE_FIELD_DESCR_SCHEME); |
304 | } |
305 | return 0; |
306 | |
307 | fail: |
308 | kfree(objp: desc->keys); |
309 | kfree(objp: desc->resps); |
310 | return rc; |
311 | } |
312 | |
313 | static int efx_mae_table_hook_find(u16 n_fields, |
314 | struct efx_tc_table_field_fmt *fields, |
315 | u16 field_id) |
316 | { |
317 | unsigned int i; |
318 | |
319 | for (i = 0; i < n_fields; i++) { |
320 | if (fields[i].field_id == field_id) |
321 | return i; |
322 | } |
323 | return -EPROTO; |
324 | } |
325 | |
326 | #define TABLE_FIND_KEY(_desc, _id) \ |
327 | efx_mae_table_hook_find((_desc)->n_keys, (_desc)->keys, _id) |
328 | #define TABLE_FIND_RESP(_desc, _id) \ |
329 | efx_mae_table_hook_find((_desc)->n_resps, (_desc)->resps, _id) |
330 | |
331 | #define TABLE_HOOK_KEY(_meta, _name, _mcdi_name) ({ \ |
332 | int _rc = TABLE_FIND_KEY(&_meta->desc, TABLE_FIELD_ID_##_mcdi_name); \ |
333 | \ |
334 | if (_rc > U8_MAX) \ |
335 | _rc = -EOPNOTSUPP; \ |
336 | if (_rc >= 0) { \ |
337 | _meta->keys._name##_idx = _rc; \ |
338 | _rc = 0; \ |
339 | } \ |
340 | _rc; \ |
341 | }) |
342 | #define TABLE_HOOK_RESP(_meta, _name, _mcdi_name) ({ \ |
343 | int _rc = TABLE_FIND_RESP(&_meta->desc, TABLE_FIELD_ID_##_mcdi_name); \ |
344 | \ |
345 | if (_rc > U8_MAX) \ |
346 | _rc = -EOPNOTSUPP; \ |
347 | if (_rc >= 0) { \ |
348 | _meta->resps._name##_idx = _rc; \ |
349 | _rc = 0; \ |
350 | } \ |
351 | _rc; \ |
352 | }) |
353 | |
354 | static int efx_mae_table_hook_ct(struct efx_nic *efx, |
355 | struct efx_tc_table_ct *meta_ct) |
356 | { |
357 | int rc; |
358 | |
359 | rc = TABLE_HOOK_KEY(meta_ct, eth_proto, ETHER_TYPE); |
360 | if (rc) |
361 | return rc; |
362 | rc = TABLE_HOOK_KEY(meta_ct, ip_proto, IP_PROTO); |
363 | if (rc) |
364 | return rc; |
365 | rc = TABLE_HOOK_KEY(meta_ct, src_ip, SRC_IP); |
366 | if (rc) |
367 | return rc; |
368 | rc = TABLE_HOOK_KEY(meta_ct, dst_ip, DST_IP); |
369 | if (rc) |
370 | return rc; |
371 | rc = TABLE_HOOK_KEY(meta_ct, l4_sport, SRC_PORT); |
372 | if (rc) |
373 | return rc; |
374 | rc = TABLE_HOOK_KEY(meta_ct, l4_dport, DST_PORT); |
375 | if (rc) |
376 | return rc; |
377 | rc = TABLE_HOOK_KEY(meta_ct, zone, DOMAIN); |
378 | if (rc) |
379 | return rc; |
380 | rc = TABLE_HOOK_RESP(meta_ct, dnat, NAT_DIR); |
381 | if (rc) |
382 | return rc; |
383 | rc = TABLE_HOOK_RESP(meta_ct, nat_ip, NAT_IP); |
384 | if (rc) |
385 | return rc; |
386 | rc = TABLE_HOOK_RESP(meta_ct, l4_natport, NAT_PORT); |
387 | if (rc) |
388 | return rc; |
389 | rc = TABLE_HOOK_RESP(meta_ct, mark, CT_MARK); |
390 | if (rc) |
391 | return rc; |
392 | rc = TABLE_HOOK_RESP(meta_ct, counter_id, COUNTER_ID); |
393 | if (rc) |
394 | return rc; |
395 | meta_ct->hooked = true; |
396 | return 0; |
397 | } |
398 | |
399 | static void efx_mae_table_free_desc(struct efx_tc_table_desc *desc) |
400 | { |
401 | kfree(objp: desc->keys); |
402 | kfree(objp: desc->resps); |
403 | memset(desc, 0, sizeof(*desc)); |
404 | } |
405 | |
406 | static bool efx_mae_check_table_exists(struct efx_nic *efx, u32 tbl_req) |
407 | { |
408 | MCDI_DECLARE_BUF(outbuf, MC_CMD_TABLE_LIST_OUT_LEN(16)); |
409 | MCDI_DECLARE_BUF(inbuf, MC_CMD_TABLE_LIST_IN_LEN); |
410 | u32 tbl_id, tbl_total, tbl_cnt, pos = 0; |
411 | size_t outlen, msg_max; |
412 | bool ct_tbl = false; |
413 | int rc, idx; |
414 | |
415 | msg_max = sizeof(outbuf); |
416 | efx->tc->meta_ct.hooked = false; |
417 | more: |
418 | memset(outbuf, 0, sizeof(*outbuf)); |
419 | MCDI_SET_DWORD(inbuf, TABLE_LIST_IN_FIRST_TABLE_ID_INDEX, pos); |
420 | rc = efx_mcdi_rpc(efx, MC_CMD_TABLE_LIST, inbuf, inlen: sizeof(inbuf), outbuf, |
421 | outlen: msg_max, outlen_actual: &outlen); |
422 | if (rc) |
423 | return false; |
424 | |
425 | if (outlen < MC_CMD_TABLE_LIST_OUT_LEN(1)) |
426 | return false; |
427 | |
428 | tbl_total = MCDI_DWORD(outbuf, TABLE_LIST_OUT_N_TABLES); |
429 | tbl_cnt = MC_CMD_TABLE_LIST_OUT_TABLE_ID_NUM(min(outlen, msg_max)); |
430 | |
431 | for (idx = 0; idx < tbl_cnt; idx++) { |
432 | tbl_id = MCDI_ARRAY_DWORD(outbuf, TABLE_LIST_OUT_TABLE_ID, idx); |
433 | if (tbl_id == tbl_req) { |
434 | ct_tbl = true; |
435 | break; |
436 | } |
437 | } |
438 | |
439 | pos += tbl_cnt; |
440 | if (!ct_tbl && pos < tbl_total) |
441 | goto more; |
442 | |
443 | return ct_tbl; |
444 | } |
445 | |
446 | int efx_mae_get_tables(struct efx_nic *efx) |
447 | { |
448 | int rc; |
449 | |
450 | efx->tc->meta_ct.hooked = false; |
451 | if (efx_mae_check_table_exists(efx, TABLE_ID_CONNTRACK_TABLE)) { |
452 | rc = efx_mae_table_get_desc(efx, desc: &efx->tc->meta_ct.desc, |
453 | TABLE_ID_CONNTRACK_TABLE); |
454 | if (rc) { |
455 | pci_info(efx->pci_dev, |
456 | "FW does not support conntrack desc rc %d\n" , |
457 | rc); |
458 | return 0; |
459 | } |
460 | |
461 | rc = efx_mae_table_hook_ct(efx, meta_ct: &efx->tc->meta_ct); |
462 | if (rc) { |
463 | pci_info(efx->pci_dev, |
464 | "FW does not support conntrack hook rc %d\n" , |
465 | rc); |
466 | return 0; |
467 | } |
468 | } else { |
469 | pci_info(efx->pci_dev, |
470 | "FW does not support conntrack table\n" ); |
471 | } |
472 | return 0; |
473 | } |
474 | |
475 | void efx_mae_free_tables(struct efx_nic *efx) |
476 | { |
477 | efx_mae_table_free_desc(desc: &efx->tc->meta_ct.desc); |
478 | efx->tc->meta_ct.hooked = false; |
479 | } |
480 | |
481 | static int efx_mae_get_basic_caps(struct efx_nic *efx, struct mae_caps *caps) |
482 | { |
483 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_GET_CAPS_OUT_LEN); |
484 | size_t outlen; |
485 | int rc; |
486 | |
487 | BUILD_BUG_ON(MC_CMD_MAE_GET_CAPS_IN_LEN); |
488 | |
489 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_GET_CAPS, NULL, inlen: 0, outbuf, |
490 | outlen: sizeof(outbuf), outlen_actual: &outlen); |
491 | if (rc) |
492 | return rc; |
493 | if (outlen < sizeof(outbuf)) |
494 | return -EIO; |
495 | caps->match_field_count = MCDI_DWORD(outbuf, MAE_GET_CAPS_OUT_MATCH_FIELD_COUNT); |
496 | caps->encap_types = MCDI_DWORD(outbuf, MAE_GET_CAPS_OUT_ENCAP_TYPES_SUPPORTED); |
497 | caps->action_prios = MCDI_DWORD(outbuf, MAE_GET_CAPS_OUT_ACTION_PRIOS); |
498 | return 0; |
499 | } |
500 | |
501 | static int efx_mae_get_rule_fields(struct efx_nic *efx, u32 cmd, |
502 | u8 *field_support) |
503 | { |
504 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_GET_AR_CAPS_OUT_LEN(MAE_NUM_FIELDS)); |
505 | MCDI_DECLARE_STRUCT_PTR(caps); |
506 | unsigned int count; |
507 | size_t outlen; |
508 | int rc, i; |
509 | |
510 | /* AR and OR caps MCDIs have identical layout, so we are using the |
511 | * same code for both. |
512 | */ |
513 | BUILD_BUG_ON(MC_CMD_MAE_GET_AR_CAPS_OUT_LEN(MAE_NUM_FIELDS) < |
514 | MC_CMD_MAE_GET_OR_CAPS_OUT_LEN(MAE_NUM_FIELDS)); |
515 | BUILD_BUG_ON(MC_CMD_MAE_GET_AR_CAPS_IN_LEN); |
516 | BUILD_BUG_ON(MC_CMD_MAE_GET_OR_CAPS_IN_LEN); |
517 | |
518 | rc = efx_mcdi_rpc(efx, cmd, NULL, inlen: 0, outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
519 | if (rc) |
520 | return rc; |
521 | BUILD_BUG_ON(MC_CMD_MAE_GET_AR_CAPS_OUT_COUNT_OFST != |
522 | MC_CMD_MAE_GET_OR_CAPS_OUT_COUNT_OFST); |
523 | count = MCDI_DWORD(outbuf, MAE_GET_AR_CAPS_OUT_COUNT); |
524 | memset(field_support, MAE_FIELD_UNSUPPORTED, MAE_NUM_FIELDS); |
525 | BUILD_BUG_ON(MC_CMD_MAE_GET_AR_CAPS_OUT_FIELD_FLAGS_OFST != |
526 | MC_CMD_MAE_GET_OR_CAPS_OUT_FIELD_FLAGS_OFST); |
527 | caps = _MCDI_DWORD(outbuf, MAE_GET_AR_CAPS_OUT_FIELD_FLAGS); |
528 | /* We're only interested in the support status enum, not any other |
529 | * flags, so just extract that from each entry. |
530 | */ |
531 | for (i = 0; i < count; i++) |
532 | if (i * sizeof(*outbuf) + MC_CMD_MAE_GET_AR_CAPS_OUT_FIELD_FLAGS_OFST < outlen) |
533 | field_support[i] = EFX_DWORD_FIELD(caps[i], MAE_FIELD_FLAGS_SUPPORT_STATUS); |
534 | return 0; |
535 | } |
536 | |
537 | int efx_mae_get_caps(struct efx_nic *efx, struct mae_caps *caps) |
538 | { |
539 | int rc; |
540 | |
541 | rc = efx_mae_get_basic_caps(efx, caps); |
542 | if (rc) |
543 | return rc; |
544 | rc = efx_mae_get_rule_fields(efx, MC_CMD_MAE_GET_AR_CAPS, |
545 | field_support: caps->action_rule_fields); |
546 | if (rc) |
547 | return rc; |
548 | return efx_mae_get_rule_fields(efx, MC_CMD_MAE_GET_OR_CAPS, |
549 | field_support: caps->outer_rule_fields); |
550 | } |
551 | |
552 | /* Bit twiddling: |
553 | * Prefix: 1...110...0 |
554 | * ~: 0...001...1 |
555 | * + 1: 0...010...0 is power of two |
556 | * so (~x) & ((~x) + 1) == 0. Converse holds also. |
557 | */ |
558 | #define is_prefix_byte(_x) !(((_x) ^ 0xff) & (((_x) ^ 0xff) + 1)) |
559 | |
560 | enum mask_type { MASK_ONES, MASK_ZEROES, MASK_PREFIX, MASK_OTHER }; |
561 | |
562 | static const char *mask_type_name(enum mask_type typ) |
563 | { |
564 | switch (typ) { |
565 | case MASK_ONES: |
566 | return "all-1s" ; |
567 | case MASK_ZEROES: |
568 | return "all-0s" ; |
569 | case MASK_PREFIX: |
570 | return "prefix" ; |
571 | case MASK_OTHER: |
572 | return "arbitrary" ; |
573 | default: /* can't happen */ |
574 | return "unknown" ; |
575 | } |
576 | } |
577 | |
578 | /* Checks a (big-endian) bytestring is a bit prefix */ |
579 | static enum mask_type classify_mask(const u8 *mask, size_t len) |
580 | { |
581 | bool zeroes = true; /* All bits seen so far are zeroes */ |
582 | bool ones = true; /* All bits seen so far are ones */ |
583 | bool prefix = true; /* Valid prefix so far */ |
584 | size_t i; |
585 | |
586 | for (i = 0; i < len; i++) { |
587 | if (ones) { |
588 | if (!is_prefix_byte(mask[i])) |
589 | prefix = false; |
590 | } else if (mask[i]) { |
591 | prefix = false; |
592 | } |
593 | if (mask[i] != 0xff) |
594 | ones = false; |
595 | if (mask[i]) |
596 | zeroes = false; |
597 | } |
598 | if (ones) |
599 | return MASK_ONES; |
600 | if (zeroes) |
601 | return MASK_ZEROES; |
602 | if (prefix) |
603 | return MASK_PREFIX; |
604 | return MASK_OTHER; |
605 | } |
606 | |
607 | static int efx_mae_match_check_cap_typ(u8 support, enum mask_type typ) |
608 | { |
609 | switch (support) { |
610 | case MAE_FIELD_UNSUPPORTED: |
611 | case MAE_FIELD_SUPPORTED_MATCH_NEVER: |
612 | if (typ == MASK_ZEROES) |
613 | return 0; |
614 | return -EOPNOTSUPP; |
615 | case MAE_FIELD_SUPPORTED_MATCH_OPTIONAL: |
616 | if (typ == MASK_ZEROES) |
617 | return 0; |
618 | fallthrough; |
619 | case MAE_FIELD_SUPPORTED_MATCH_ALWAYS: |
620 | if (typ == MASK_ONES) |
621 | return 0; |
622 | return -EINVAL; |
623 | case MAE_FIELD_SUPPORTED_MATCH_PREFIX: |
624 | if (typ == MASK_OTHER) |
625 | return -EOPNOTSUPP; |
626 | return 0; |
627 | case MAE_FIELD_SUPPORTED_MATCH_MASK: |
628 | return 0; |
629 | default: |
630 | return -EIO; |
631 | } |
632 | } |
633 | |
634 | /* Validate field mask against hardware capabilities. Captures caller's 'rc' */ |
635 | #define CHECK(_mcdi, _field) ({ \ |
636 | enum mask_type typ = classify_mask((const u8 *)&mask->_field, \ |
637 | sizeof(mask->_field)); \ |
638 | \ |
639 | rc = efx_mae_match_check_cap_typ(supported_fields[MAE_FIELD_ ## _mcdi],\ |
640 | typ); \ |
641 | if (rc) \ |
642 | NL_SET_ERR_MSG_FMT_MOD(extack, \ |
643 | "No support for %s mask in field %s", \ |
644 | mask_type_name(typ), #_field); \ |
645 | rc; \ |
646 | }) |
647 | /* Booleans need special handling */ |
648 | #define CHECK_BIT(_mcdi, _field) ({ \ |
649 | enum mask_type typ = mask->_field ? MASK_ONES : MASK_ZEROES; \ |
650 | \ |
651 | rc = efx_mae_match_check_cap_typ(supported_fields[MAE_FIELD_ ## _mcdi],\ |
652 | typ); \ |
653 | if (rc) \ |
654 | NL_SET_ERR_MSG_FMT_MOD(extack, \ |
655 | "No support for %s mask in field %s", \ |
656 | mask_type_name(typ), #_field); \ |
657 | rc; \ |
658 | }) |
659 | |
660 | int efx_mae_match_check_caps(struct efx_nic *efx, |
661 | const struct efx_tc_match_fields *mask, |
662 | struct netlink_ext_ack *extack) |
663 | { |
664 | const u8 *supported_fields = efx->tc->caps->action_rule_fields; |
665 | __be32 ingress_port = cpu_to_be32(mask->ingress_port); |
666 | enum mask_type ingress_port_mask_type; |
667 | int rc; |
668 | |
669 | /* Check for _PREFIX assumes big-endian, so we need to convert */ |
670 | ingress_port_mask_type = classify_mask(mask: (const u8 *)&ingress_port, |
671 | len: sizeof(ingress_port)); |
672 | rc = efx_mae_match_check_cap_typ(support: supported_fields[MAE_FIELD_INGRESS_PORT], |
673 | typ: ingress_port_mask_type); |
674 | if (rc) { |
675 | NL_SET_ERR_MSG_FMT_MOD(extack, "No support for %s mask in field ingress_port" , |
676 | mask_type_name(ingress_port_mask_type)); |
677 | return rc; |
678 | } |
679 | if (CHECK(ETHER_TYPE, eth_proto) || |
680 | CHECK(VLAN0_TCI, vlan_tci[0]) || |
681 | CHECK(VLAN0_PROTO, vlan_proto[0]) || |
682 | CHECK(VLAN1_TCI, vlan_tci[1]) || |
683 | CHECK(VLAN1_PROTO, vlan_proto[1]) || |
684 | CHECK(ETH_SADDR, eth_saddr) || |
685 | CHECK(ETH_DADDR, eth_daddr) || |
686 | CHECK(IP_PROTO, ip_proto) || |
687 | CHECK(IP_TOS, ip_tos) || |
688 | CHECK(IP_TTL, ip_ttl) || |
689 | CHECK(SRC_IP4, src_ip) || |
690 | CHECK(DST_IP4, dst_ip) || |
691 | #ifdef CONFIG_IPV6 |
692 | CHECK(SRC_IP6, src_ip6) || |
693 | CHECK(DST_IP6, dst_ip6) || |
694 | #endif |
695 | CHECK(L4_SPORT, l4_sport) || |
696 | CHECK(L4_DPORT, l4_dport) || |
697 | CHECK(TCP_FLAGS, tcp_flags) || |
698 | CHECK_BIT(TCP_SYN_FIN_RST, tcp_syn_fin_rst) || |
699 | CHECK_BIT(IS_IP_FRAG, ip_frag) || |
700 | CHECK_BIT(IP_FIRST_FRAG, ip_firstfrag) || |
701 | CHECK_BIT(DO_CT, ct_state_trk) || |
702 | CHECK_BIT(CT_HIT, ct_state_est) || |
703 | CHECK(CT_MARK, ct_mark) || |
704 | CHECK(CT_DOMAIN, ct_zone) || |
705 | CHECK(RECIRC_ID, recirc_id)) |
706 | return rc; |
707 | /* Matches on outer fields are done in a separate hardware table, |
708 | * the Outer Rule table. Thus the Action Rule merely does an |
709 | * exact match on Outer Rule ID if any outer field matches are |
710 | * present. The exception is the VNI/VSID (enc_keyid), which is |
711 | * available to the Action Rule match iff the Outer Rule matched |
712 | * (and thus identified the encap protocol to use to extract it). |
713 | */ |
714 | if (efx_tc_match_is_encap(mask)) { |
715 | rc = efx_mae_match_check_cap_typ( |
716 | support: supported_fields[MAE_FIELD_OUTER_RULE_ID], |
717 | typ: MASK_ONES); |
718 | if (rc) { |
719 | NL_SET_ERR_MSG_MOD(extack, "No support for encap rule ID matches" ); |
720 | return rc; |
721 | } |
722 | if (CHECK(ENC_VNET_ID, enc_keyid)) |
723 | return rc; |
724 | } else if (mask->enc_keyid) { |
725 | NL_SET_ERR_MSG_MOD(extack, "Match on enc_keyid requires other encap fields" ); |
726 | return -EINVAL; |
727 | } |
728 | return 0; |
729 | } |
730 | |
731 | /* Checks for match fields not supported in LHS Outer Rules */ |
732 | #define UNSUPPORTED(_field) ({ \ |
733 | enum mask_type typ = classify_mask((const u8 *)&mask->_field, \ |
734 | sizeof(mask->_field)); \ |
735 | \ |
736 | if (typ != MASK_ZEROES) { \ |
737 | NL_SET_ERR_MSG_MOD(extack, "Unsupported match field " #_field);\ |
738 | rc = -EOPNOTSUPP; \ |
739 | } \ |
740 | rc; \ |
741 | }) |
742 | #define UNSUPPORTED_BIT(_field) ({ \ |
743 | if (mask->_field) { \ |
744 | NL_SET_ERR_MSG_MOD(extack, "Unsupported match field " #_field);\ |
745 | rc = -EOPNOTSUPP; \ |
746 | } \ |
747 | rc; \ |
748 | }) |
749 | |
750 | /* LHS rules are (normally) inserted in the Outer Rule table, which means |
751 | * they use ENC_ fields in hardware to match regular (not enc_) fields from |
752 | * &struct efx_tc_match_fields. |
753 | */ |
754 | int efx_mae_match_check_caps_lhs(struct efx_nic *efx, |
755 | const struct efx_tc_match_fields *mask, |
756 | struct netlink_ext_ack *extack) |
757 | { |
758 | const u8 *supported_fields = efx->tc->caps->outer_rule_fields; |
759 | __be32 ingress_port = cpu_to_be32(mask->ingress_port); |
760 | enum mask_type ingress_port_mask_type; |
761 | int rc; |
762 | |
763 | /* Check for _PREFIX assumes big-endian, so we need to convert */ |
764 | ingress_port_mask_type = classify_mask(mask: (const u8 *)&ingress_port, |
765 | len: sizeof(ingress_port)); |
766 | rc = efx_mae_match_check_cap_typ(support: supported_fields[MAE_FIELD_INGRESS_PORT], |
767 | typ: ingress_port_mask_type); |
768 | if (rc) { |
769 | NL_SET_ERR_MSG_FMT_MOD(extack, "No support for %s mask in field %s\n" , |
770 | mask_type_name(ingress_port_mask_type), |
771 | "ingress_port" ); |
772 | return rc; |
773 | } |
774 | if (CHECK(ENC_ETHER_TYPE, eth_proto) || |
775 | CHECK(ENC_VLAN0_TCI, vlan_tci[0]) || |
776 | CHECK(ENC_VLAN0_PROTO, vlan_proto[0]) || |
777 | CHECK(ENC_VLAN1_TCI, vlan_tci[1]) || |
778 | CHECK(ENC_VLAN1_PROTO, vlan_proto[1]) || |
779 | CHECK(ENC_ETH_SADDR, eth_saddr) || |
780 | CHECK(ENC_ETH_DADDR, eth_daddr) || |
781 | CHECK(ENC_IP_PROTO, ip_proto) || |
782 | CHECK(ENC_IP_TOS, ip_tos) || |
783 | CHECK(ENC_IP_TTL, ip_ttl) || |
784 | CHECK_BIT(ENC_IP_FRAG, ip_frag) || |
785 | UNSUPPORTED_BIT(ip_firstfrag) || |
786 | CHECK(ENC_SRC_IP4, src_ip) || |
787 | CHECK(ENC_DST_IP4, dst_ip) || |
788 | #ifdef CONFIG_IPV6 |
789 | CHECK(ENC_SRC_IP6, src_ip6) || |
790 | CHECK(ENC_DST_IP6, dst_ip6) || |
791 | #endif |
792 | CHECK(ENC_L4_SPORT, l4_sport) || |
793 | CHECK(ENC_L4_DPORT, l4_dport) || |
794 | UNSUPPORTED(tcp_flags) || |
795 | CHECK_BIT(TCP_SYN_FIN_RST, tcp_syn_fin_rst)) |
796 | return rc; |
797 | if (efx_tc_match_is_encap(mask)) { |
798 | /* can't happen; disallowed for local rules, translated |
799 | * for foreign rules. |
800 | */ |
801 | NL_SET_ERR_MSG_MOD(extack, "Unexpected encap match in LHS rule" ); |
802 | return -EOPNOTSUPP; |
803 | } |
804 | if (UNSUPPORTED(enc_keyid) || |
805 | /* Can't filter on conntrack in LHS rules */ |
806 | UNSUPPORTED_BIT(ct_state_trk) || |
807 | UNSUPPORTED_BIT(ct_state_est) || |
808 | UNSUPPORTED(ct_mark) || |
809 | UNSUPPORTED(recirc_id)) |
810 | return rc; |
811 | return 0; |
812 | } |
813 | #undef UNSUPPORTED |
814 | #undef CHECK_BIT |
815 | #undef CHECK |
816 | |
817 | #define CHECK(_mcdi) ({ \ |
818 | rc = efx_mae_match_check_cap_typ(supported_fields[MAE_FIELD_ ## _mcdi],\ |
819 | MASK_ONES); \ |
820 | if (rc) \ |
821 | NL_SET_ERR_MSG_FMT_MOD(extack, \ |
822 | "No support for field %s", #_mcdi); \ |
823 | rc; \ |
824 | }) |
825 | /* Checks that the fields needed for encap-rule matches are supported by the |
826 | * MAE. All the fields are exact-match, except possibly ENC_IP_TOS. |
827 | */ |
828 | int efx_mae_check_encap_match_caps(struct efx_nic *efx, bool ipv6, |
829 | u8 ip_tos_mask, __be16 udp_sport_mask, |
830 | struct netlink_ext_ack *extack) |
831 | { |
832 | u8 *supported_fields = efx->tc->caps->outer_rule_fields; |
833 | enum mask_type typ; |
834 | int rc; |
835 | |
836 | if (CHECK(ENC_ETHER_TYPE)) |
837 | return rc; |
838 | if (ipv6) { |
839 | if (CHECK(ENC_SRC_IP6) || |
840 | CHECK(ENC_DST_IP6)) |
841 | return rc; |
842 | } else { |
843 | if (CHECK(ENC_SRC_IP4) || |
844 | CHECK(ENC_DST_IP4)) |
845 | return rc; |
846 | } |
847 | if (CHECK(ENC_L4_DPORT) || |
848 | CHECK(ENC_IP_PROTO)) |
849 | return rc; |
850 | typ = classify_mask(mask: (const u8 *)&udp_sport_mask, len: sizeof(udp_sport_mask)); |
851 | rc = efx_mae_match_check_cap_typ(support: supported_fields[MAE_FIELD_ENC_L4_SPORT], |
852 | typ); |
853 | if (rc) { |
854 | NL_SET_ERR_MSG_FMT_MOD(extack, "No support for %s mask in field %s" , |
855 | mask_type_name(typ), "enc_src_port" ); |
856 | return rc; |
857 | } |
858 | typ = classify_mask(mask: &ip_tos_mask, len: sizeof(ip_tos_mask)); |
859 | rc = efx_mae_match_check_cap_typ(support: supported_fields[MAE_FIELD_ENC_IP_TOS], |
860 | typ); |
861 | if (rc) { |
862 | NL_SET_ERR_MSG_FMT_MOD(extack, "No support for %s mask in field %s" , |
863 | mask_type_name(typ), "enc_ip_tos" ); |
864 | return rc; |
865 | } |
866 | return 0; |
867 | } |
868 | #undef CHECK |
869 | |
870 | int efx_mae_check_encap_type_supported(struct efx_nic *efx, enum efx_encap_type typ) |
871 | { |
872 | unsigned int bit; |
873 | |
874 | switch (typ & EFX_ENCAP_TYPES_MASK) { |
875 | case EFX_ENCAP_TYPE_VXLAN: |
876 | bit = MC_CMD_MAE_GET_CAPS_OUT_ENCAP_TYPE_VXLAN_LBN; |
877 | break; |
878 | case EFX_ENCAP_TYPE_GENEVE: |
879 | bit = MC_CMD_MAE_GET_CAPS_OUT_ENCAP_TYPE_GENEVE_LBN; |
880 | break; |
881 | default: |
882 | return -EOPNOTSUPP; |
883 | } |
884 | if (efx->tc->caps->encap_types & BIT(bit)) |
885 | return 0; |
886 | return -EOPNOTSUPP; |
887 | } |
888 | |
889 | int efx_mae_allocate_counter(struct efx_nic *efx, struct efx_tc_counter *cnt) |
890 | { |
891 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_COUNTER_ALLOC_OUT_LEN(1)); |
892 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_COUNTER_ALLOC_V2_IN_LEN); |
893 | size_t outlen; |
894 | int rc; |
895 | |
896 | if (!cnt) |
897 | return -EINVAL; |
898 | |
899 | MCDI_SET_DWORD(inbuf, MAE_COUNTER_ALLOC_V2_IN_REQUESTED_COUNT, 1); |
900 | MCDI_SET_DWORD(inbuf, MAE_COUNTER_ALLOC_V2_IN_COUNTER_TYPE, cnt->type); |
901 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_COUNTER_ALLOC, inbuf, inlen: sizeof(inbuf), |
902 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
903 | if (rc) |
904 | return rc; |
905 | /* pcol says this can't happen, since count is 1 */ |
906 | if (outlen < sizeof(outbuf)) |
907 | return -EIO; |
908 | cnt->fw_id = MCDI_DWORD(outbuf, MAE_COUNTER_ALLOC_OUT_COUNTER_ID); |
909 | cnt->gen = MCDI_DWORD(outbuf, MAE_COUNTER_ALLOC_OUT_GENERATION_COUNT); |
910 | return 0; |
911 | } |
912 | |
913 | int efx_mae_free_counter(struct efx_nic *efx, struct efx_tc_counter *cnt) |
914 | { |
915 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_COUNTER_FREE_OUT_LEN(1)); |
916 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_COUNTER_FREE_V2_IN_LEN); |
917 | size_t outlen; |
918 | int rc; |
919 | |
920 | MCDI_SET_DWORD(inbuf, MAE_COUNTER_FREE_V2_IN_COUNTER_ID_COUNT, 1); |
921 | MCDI_SET_DWORD(inbuf, MAE_COUNTER_FREE_V2_IN_FREE_COUNTER_ID, cnt->fw_id); |
922 | MCDI_SET_DWORD(inbuf, MAE_COUNTER_FREE_V2_IN_COUNTER_TYPE, cnt->type); |
923 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_COUNTER_FREE, inbuf, inlen: sizeof(inbuf), |
924 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
925 | if (rc) |
926 | return rc; |
927 | /* pcol says this can't happen, since count is 1 */ |
928 | if (outlen < sizeof(outbuf)) |
929 | return -EIO; |
930 | /* FW freed a different ID than we asked for, should also never happen. |
931 | * Warn because it means we've now got a different idea to the FW of |
932 | * what counters exist, which could cause mayhem later. |
933 | */ |
934 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_COUNTER_FREE_OUT_FREED_COUNTER_ID) != |
935 | cnt->fw_id)) |
936 | return -EIO; |
937 | return 0; |
938 | } |
939 | |
940 | static int efx_mae_encap_type_to_mae_type(enum efx_encap_type type) |
941 | { |
942 | switch (type & EFX_ENCAP_TYPES_MASK) { |
943 | case EFX_ENCAP_TYPE_NONE: |
944 | return MAE_MCDI_ENCAP_TYPE_NONE; |
945 | case EFX_ENCAP_TYPE_VXLAN: |
946 | return MAE_MCDI_ENCAP_TYPE_VXLAN; |
947 | case EFX_ENCAP_TYPE_GENEVE: |
948 | return MAE_MCDI_ENCAP_TYPE_GENEVE; |
949 | default: |
950 | return -EOPNOTSUPP; |
951 | } |
952 | } |
953 | |
954 | int efx_mae_allocate_encap_md(struct efx_nic *efx, |
955 | struct efx_tc_encap_action *encap) |
956 | { |
957 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ENCAP_HEADER_ALLOC_IN_LEN(EFX_TC_MAX_ENCAP_HDR)); |
958 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ENCAP_HEADER_ALLOC_OUT_LEN); |
959 | size_t inlen, outlen; |
960 | int rc; |
961 | |
962 | rc = efx_mae_encap_type_to_mae_type(type: encap->type); |
963 | if (rc < 0) |
964 | return rc; |
965 | MCDI_SET_DWORD(inbuf, MAE_ENCAP_HEADER_ALLOC_IN_ENCAP_TYPE, rc); |
966 | inlen = MC_CMD_MAE_ENCAP_HEADER_ALLOC_IN_LEN(encap->encap_hdr_len); |
967 | if (WARN_ON(inlen > sizeof(inbuf))) /* can't happen */ |
968 | return -EINVAL; |
969 | memcpy(MCDI_PTR(inbuf, MAE_ENCAP_HEADER_ALLOC_IN_HDR_DATA), |
970 | encap->encap_hdr, |
971 | encap->encap_hdr_len); |
972 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ENCAP_HEADER_ALLOC, inbuf, |
973 | inlen, outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
974 | if (rc) |
975 | return rc; |
976 | if (outlen < sizeof(outbuf)) |
977 | return -EIO; |
978 | encap->fw_id = MCDI_DWORD(outbuf, MAE_ENCAP_HEADER_ALLOC_OUT_ENCAP_HEADER_ID); |
979 | return 0; |
980 | } |
981 | |
982 | int efx_mae_update_encap_md(struct efx_nic *efx, |
983 | struct efx_tc_encap_action *encap) |
984 | { |
985 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ENCAP_HEADER_UPDATE_IN_LEN(EFX_TC_MAX_ENCAP_HDR)); |
986 | size_t inlen; |
987 | int rc; |
988 | |
989 | rc = efx_mae_encap_type_to_mae_type(type: encap->type); |
990 | if (rc < 0) |
991 | return rc; |
992 | MCDI_SET_DWORD(inbuf, MAE_ENCAP_HEADER_UPDATE_IN_ENCAP_TYPE, rc); |
993 | MCDI_SET_DWORD(inbuf, MAE_ENCAP_HEADER_UPDATE_IN_EH_ID, |
994 | encap->fw_id); |
995 | inlen = MC_CMD_MAE_ENCAP_HEADER_UPDATE_IN_LEN(encap->encap_hdr_len); |
996 | if (WARN_ON(inlen > sizeof(inbuf))) /* can't happen */ |
997 | return -EINVAL; |
998 | memcpy(MCDI_PTR(inbuf, MAE_ENCAP_HEADER_UPDATE_IN_HDR_DATA), |
999 | encap->encap_hdr, |
1000 | encap->encap_hdr_len); |
1001 | |
1002 | BUILD_BUG_ON(MC_CMD_MAE_ENCAP_HEADER_UPDATE_OUT_LEN != 0); |
1003 | return efx_mcdi_rpc(efx, MC_CMD_MAE_ENCAP_HEADER_UPDATE, inbuf, |
1004 | inlen, NULL, outlen: 0, NULL); |
1005 | } |
1006 | |
1007 | int efx_mae_free_encap_md(struct efx_nic *efx, |
1008 | struct efx_tc_encap_action *encap) |
1009 | { |
1010 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ENCAP_HEADER_FREE_OUT_LEN(1)); |
1011 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ENCAP_HEADER_FREE_IN_LEN(1)); |
1012 | size_t outlen; |
1013 | int rc; |
1014 | |
1015 | MCDI_SET_DWORD(inbuf, MAE_ENCAP_HEADER_FREE_IN_EH_ID, encap->fw_id); |
1016 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ENCAP_HEADER_FREE, inbuf, |
1017 | inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1018 | if (rc) |
1019 | return rc; |
1020 | if (outlen < sizeof(outbuf)) |
1021 | return -EIO; |
1022 | /* FW freed a different ID than we asked for, should also never happen. |
1023 | * Warn because it means we've now got a different idea to the FW of |
1024 | * what encap_mds exist, which could cause mayhem later. |
1025 | */ |
1026 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_ENCAP_HEADER_FREE_OUT_FREED_EH_ID) != encap->fw_id)) |
1027 | return -EIO; |
1028 | /* We're probably about to free @encap, but let's just make sure its |
1029 | * fw_id is blatted so that it won't look valid if it leaks out. |
1030 | */ |
1031 | encap->fw_id = MC_CMD_MAE_ENCAP_HEADER_ALLOC_OUT_ENCAP_HEADER_ID_NULL; |
1032 | return 0; |
1033 | } |
1034 | |
1035 | int efx_mae_lookup_mport(struct efx_nic *efx, u32 vf_idx, u32 *id) |
1036 | { |
1037 | struct ef100_nic_data *nic_data = efx->nic_data; |
1038 | struct efx_mae *mae = efx->mae; |
1039 | struct rhashtable_iter walk; |
1040 | struct mae_mport_desc *m; |
1041 | int rc = -ENOENT; |
1042 | |
1043 | rhashtable_walk_enter(ht: &mae->mports_ht, iter: &walk); |
1044 | rhashtable_walk_start(iter: &walk); |
1045 | while ((m = rhashtable_walk_next(iter: &walk)) != NULL) { |
1046 | if (m->mport_type == MAE_MPORT_DESC_MPORT_TYPE_VNIC && |
1047 | m->interface_idx == nic_data->local_mae_intf && |
1048 | m->pf_idx == 0 && |
1049 | m->vf_idx == vf_idx) { |
1050 | *id = m->mport_id; |
1051 | rc = 0; |
1052 | break; |
1053 | } |
1054 | } |
1055 | rhashtable_walk_stop(iter: &walk); |
1056 | rhashtable_walk_exit(iter: &walk); |
1057 | return rc; |
1058 | } |
1059 | |
1060 | static bool efx_mae_asl_id(u32 id) |
1061 | { |
1062 | return !!(id & BIT(31)); |
1063 | } |
1064 | |
1065 | /* mport handling */ |
1066 | static const struct rhashtable_params efx_mae_mports_ht_params = { |
1067 | .key_len = sizeof(u32), |
1068 | .key_offset = offsetof(struct mae_mport_desc, mport_id), |
1069 | .head_offset = offsetof(struct mae_mport_desc, linkage), |
1070 | }; |
1071 | |
1072 | struct mae_mport_desc *efx_mae_get_mport(struct efx_nic *efx, u32 mport_id) |
1073 | { |
1074 | return rhashtable_lookup_fast(ht: &efx->mae->mports_ht, key: &mport_id, |
1075 | params: efx_mae_mports_ht_params); |
1076 | } |
1077 | |
1078 | static int efx_mae_add_mport(struct efx_nic *efx, struct mae_mport_desc *desc) |
1079 | { |
1080 | struct efx_mae *mae = efx->mae; |
1081 | int rc; |
1082 | |
1083 | rc = rhashtable_insert_fast(ht: &mae->mports_ht, obj: &desc->linkage, |
1084 | params: efx_mae_mports_ht_params); |
1085 | |
1086 | if (rc) { |
1087 | pci_err(efx->pci_dev, "Failed to insert MPORT %08x, rc %d\n" , |
1088 | desc->mport_id, rc); |
1089 | kfree(objp: desc); |
1090 | return rc; |
1091 | } |
1092 | |
1093 | return rc; |
1094 | } |
1095 | |
1096 | void efx_mae_remove_mport(void *desc, void *arg) |
1097 | { |
1098 | struct mae_mport_desc *mport = desc; |
1099 | |
1100 | synchronize_rcu(); |
1101 | kfree(objp: mport); |
1102 | } |
1103 | |
1104 | static int efx_mae_process_mport(struct efx_nic *efx, |
1105 | struct mae_mport_desc *desc) |
1106 | { |
1107 | struct ef100_nic_data *nic_data = efx->nic_data; |
1108 | struct mae_mport_desc *mport; |
1109 | |
1110 | mport = efx_mae_get_mport(efx, mport_id: desc->mport_id); |
1111 | if (!IS_ERR_OR_NULL(ptr: mport)) { |
1112 | netif_err(efx, drv, efx->net_dev, |
1113 | "mport with id %u does exist!!!\n" , desc->mport_id); |
1114 | return -EEXIST; |
1115 | } |
1116 | |
1117 | if (nic_data->have_own_mport && |
1118 | desc->mport_id == nic_data->own_mport) { |
1119 | WARN_ON(desc->mport_type != MAE_MPORT_DESC_MPORT_TYPE_VNIC); |
1120 | WARN_ON(desc->vnic_client_type != |
1121 | MAE_MPORT_DESC_VNIC_CLIENT_TYPE_FUNCTION); |
1122 | nic_data->local_mae_intf = desc->interface_idx; |
1123 | nic_data->have_local_intf = true; |
1124 | pci_dbg(efx->pci_dev, "MAE interface_idx is %u\n" , |
1125 | nic_data->local_mae_intf); |
1126 | } |
1127 | |
1128 | return efx_mae_add_mport(efx, desc); |
1129 | } |
1130 | |
1131 | #define MCDI_MPORT_JOURNAL_LEN \ |
1132 | ALIGN(MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_LENMAX_MCDI2, 4) |
1133 | |
1134 | int efx_mae_enumerate_mports(struct efx_nic *efx) |
1135 | { |
1136 | efx_dword_t *outbuf = kzalloc(MCDI_MPORT_JOURNAL_LEN, GFP_KERNEL); |
1137 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MPORT_READ_JOURNAL_IN_LEN); |
1138 | MCDI_DECLARE_STRUCT_PTR(desc); |
1139 | size_t outlen, stride, count; |
1140 | int rc = 0, i; |
1141 | |
1142 | if (!outbuf) |
1143 | return -ENOMEM; |
1144 | do { |
1145 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_MPORT_READ_JOURNAL, inbuf, |
1146 | inlen: sizeof(inbuf), outbuf, |
1147 | MCDI_MPORT_JOURNAL_LEN, outlen_actual: &outlen); |
1148 | if (rc) |
1149 | goto fail; |
1150 | if (outlen < MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_MPORT_DESC_DATA_OFST) { |
1151 | rc = -EIO; |
1152 | goto fail; |
1153 | } |
1154 | count = MCDI_DWORD(outbuf, MAE_MPORT_READ_JOURNAL_OUT_MPORT_DESC_COUNT); |
1155 | if (!count) |
1156 | continue; /* not break; we want to look at MORE flag */ |
1157 | stride = MCDI_DWORD(outbuf, MAE_MPORT_READ_JOURNAL_OUT_SIZEOF_MPORT_DESC); |
1158 | if (stride < MAE_MPORT_DESC_LEN) { |
1159 | rc = -EIO; |
1160 | goto fail; |
1161 | } |
1162 | if (outlen < MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_LEN(count * stride)) { |
1163 | rc = -EIO; |
1164 | goto fail; |
1165 | } |
1166 | |
1167 | for (i = 0; i < count; i++) { |
1168 | struct mae_mport_desc *d; |
1169 | |
1170 | d = kzalloc(size: sizeof(*d), GFP_KERNEL); |
1171 | if (!d) { |
1172 | rc = -ENOMEM; |
1173 | goto fail; |
1174 | } |
1175 | |
1176 | desc = (efx_dword_t *) |
1177 | _MCDI_PTR(outbuf, MC_CMD_MAE_MPORT_READ_JOURNAL_OUT_MPORT_DESC_DATA_OFST + |
1178 | i * stride); |
1179 | d->mport_id = MCDI_STRUCT_DWORD(desc, MAE_MPORT_DESC_MPORT_ID); |
1180 | d->flags = MCDI_STRUCT_DWORD(desc, MAE_MPORT_DESC_FLAGS); |
1181 | d->caller_flags = MCDI_STRUCT_DWORD(desc, |
1182 | MAE_MPORT_DESC_CALLER_FLAGS); |
1183 | d->mport_type = MCDI_STRUCT_DWORD(desc, |
1184 | MAE_MPORT_DESC_MPORT_TYPE); |
1185 | switch (d->mport_type) { |
1186 | case MAE_MPORT_DESC_MPORT_TYPE_NET_PORT: |
1187 | d->port_idx = MCDI_STRUCT_DWORD(desc, |
1188 | MAE_MPORT_DESC_NET_PORT_IDX); |
1189 | break; |
1190 | case MAE_MPORT_DESC_MPORT_TYPE_ALIAS: |
1191 | d->alias_mport_id = MCDI_STRUCT_DWORD(desc, |
1192 | MAE_MPORT_DESC_ALIAS_DELIVER_MPORT_ID); |
1193 | break; |
1194 | case MAE_MPORT_DESC_MPORT_TYPE_VNIC: |
1195 | d->vnic_client_type = MCDI_STRUCT_DWORD(desc, |
1196 | MAE_MPORT_DESC_VNIC_CLIENT_TYPE); |
1197 | d->interface_idx = MCDI_STRUCT_DWORD(desc, |
1198 | MAE_MPORT_DESC_VNIC_FUNCTION_INTERFACE); |
1199 | d->pf_idx = MCDI_STRUCT_WORD(desc, |
1200 | MAE_MPORT_DESC_VNIC_FUNCTION_PF_IDX); |
1201 | d->vf_idx = MCDI_STRUCT_WORD(desc, |
1202 | MAE_MPORT_DESC_VNIC_FUNCTION_VF_IDX); |
1203 | break; |
1204 | default: |
1205 | /* Unknown mport_type, just accept it */ |
1206 | break; |
1207 | } |
1208 | rc = efx_mae_process_mport(efx, desc: d); |
1209 | /* Any failure will be due to memory allocation faiure, |
1210 | * so there is no point to try subsequent entries. |
1211 | */ |
1212 | if (rc) |
1213 | goto fail; |
1214 | } |
1215 | } while (MCDI_FIELD(outbuf, MAE_MPORT_READ_JOURNAL_OUT, MORE) && |
1216 | !WARN_ON(!count)); |
1217 | fail: |
1218 | kfree(objp: outbuf); |
1219 | return rc; |
1220 | } |
1221 | |
1222 | /** |
1223 | * efx_mae_allocate_pedit_mac() - allocate pedit MAC address in HW. |
1224 | * @efx: NIC we're installing a pedit MAC address on |
1225 | * @ped: pedit MAC action to be installed |
1226 | * |
1227 | * Attempts to install @ped in HW and populates its id with an index of this |
1228 | * entry in the firmware MAC address table on success. |
1229 | * |
1230 | * Return: negative value on error, 0 in success. |
1231 | */ |
1232 | int efx_mae_allocate_pedit_mac(struct efx_nic *efx, |
1233 | struct efx_tc_mac_pedit_action *ped) |
1234 | { |
1235 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_MAC_ADDR_ALLOC_OUT_LEN); |
1236 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MAC_ADDR_ALLOC_IN_LEN); |
1237 | size_t outlen; |
1238 | int rc; |
1239 | |
1240 | BUILD_BUG_ON(MC_CMD_MAE_MAC_ADDR_ALLOC_IN_MAC_ADDR_LEN != |
1241 | sizeof(ped->h_addr)); |
1242 | memcpy(MCDI_PTR(inbuf, MAE_MAC_ADDR_ALLOC_IN_MAC_ADDR), ped->h_addr, |
1243 | sizeof(ped->h_addr)); |
1244 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_MAC_ADDR_ALLOC, inbuf, inlen: sizeof(inbuf), |
1245 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1246 | if (rc) |
1247 | return rc; |
1248 | if (outlen < sizeof(outbuf)) |
1249 | return -EIO; |
1250 | ped->fw_id = MCDI_DWORD(outbuf, MAE_MAC_ADDR_ALLOC_OUT_MAC_ID); |
1251 | return 0; |
1252 | } |
1253 | |
1254 | /** |
1255 | * efx_mae_free_pedit_mac() - free pedit MAC address in HW. |
1256 | * @efx: NIC we're installing a pedit MAC address on |
1257 | * @ped: pedit MAC action that needs to be freed |
1258 | * |
1259 | * Frees @ped in HW, check that firmware did not free a different one and clears |
1260 | * the id (which denotes the index of the entry in the MAC address table). |
1261 | */ |
1262 | void efx_mae_free_pedit_mac(struct efx_nic *efx, |
1263 | struct efx_tc_mac_pedit_action *ped) |
1264 | { |
1265 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_MAC_ADDR_FREE_OUT_LEN(1)); |
1266 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_MAC_ADDR_FREE_IN_LEN(1)); |
1267 | size_t outlen; |
1268 | int rc; |
1269 | |
1270 | MCDI_SET_DWORD(inbuf, MAE_MAC_ADDR_FREE_IN_MAC_ID, ped->fw_id); |
1271 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_MAC_ADDR_FREE, inbuf, |
1272 | inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1273 | if (rc || outlen < sizeof(outbuf)) |
1274 | return; |
1275 | /* FW freed a different ID than we asked for, should also never happen. |
1276 | * Warn because it means we've now got a different idea to the FW of |
1277 | * what MAC addresses exist, which could cause mayhem later. |
1278 | */ |
1279 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_MAC_ADDR_FREE_OUT_FREED_MAC_ID) != ped->fw_id)) |
1280 | return; |
1281 | /* We're probably about to free @ped, but let's just make sure its |
1282 | * fw_id is blatted so that it won't look valid if it leaks out. |
1283 | */ |
1284 | ped->fw_id = MC_CMD_MAE_MAC_ADDR_ALLOC_OUT_MAC_ID_NULL; |
1285 | } |
1286 | |
1287 | int efx_mae_alloc_action_set(struct efx_nic *efx, struct efx_tc_action_set *act) |
1288 | { |
1289 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_SET_ALLOC_OUT_LEN); |
1290 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_SET_ALLOC_IN_LEN); |
1291 | size_t outlen; |
1292 | int rc; |
1293 | |
1294 | MCDI_POPULATE_DWORD_5(inbuf, MAE_ACTION_SET_ALLOC_IN_FLAGS, |
1295 | MAE_ACTION_SET_ALLOC_IN_VLAN_PUSH, act->vlan_push, |
1296 | MAE_ACTION_SET_ALLOC_IN_VLAN_POP, act->vlan_pop, |
1297 | MAE_ACTION_SET_ALLOC_IN_DECAP, act->decap, |
1298 | MAE_ACTION_SET_ALLOC_IN_DO_NAT, act->do_nat, |
1299 | MAE_ACTION_SET_ALLOC_IN_DO_DECR_IP_TTL, |
1300 | act->do_ttl_dec); |
1301 | |
1302 | if (act->src_mac) |
1303 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_SRC_MAC_ID, |
1304 | act->src_mac->fw_id); |
1305 | else |
1306 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_SRC_MAC_ID, |
1307 | MC_CMD_MAE_MAC_ADDR_ALLOC_OUT_MAC_ID_NULL); |
1308 | |
1309 | if (act->dst_mac) |
1310 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_DST_MAC_ID, |
1311 | act->dst_mac->fw_id); |
1312 | else |
1313 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_DST_MAC_ID, |
1314 | MC_CMD_MAE_MAC_ADDR_ALLOC_OUT_MAC_ID_NULL); |
1315 | |
1316 | if (act->count && !WARN_ON(!act->count->cnt)) |
1317 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_COUNTER_ID, |
1318 | act->count->cnt->fw_id); |
1319 | else |
1320 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_COUNTER_ID, |
1321 | MC_CMD_MAE_COUNTER_ALLOC_OUT_COUNTER_ID_NULL); |
1322 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_COUNTER_LIST_ID, |
1323 | MC_CMD_MAE_COUNTER_LIST_ALLOC_OUT_COUNTER_LIST_ID_NULL); |
1324 | if (act->vlan_push) { |
1325 | MCDI_SET_WORD_BE(inbuf, MAE_ACTION_SET_ALLOC_IN_VLAN0_TCI_BE, |
1326 | act->vlan_tci[0]); |
1327 | MCDI_SET_WORD_BE(inbuf, MAE_ACTION_SET_ALLOC_IN_VLAN0_PROTO_BE, |
1328 | act->vlan_proto[0]); |
1329 | } |
1330 | if (act->vlan_push >= 2) { |
1331 | MCDI_SET_WORD_BE(inbuf, MAE_ACTION_SET_ALLOC_IN_VLAN1_TCI_BE, |
1332 | act->vlan_tci[1]); |
1333 | MCDI_SET_WORD_BE(inbuf, MAE_ACTION_SET_ALLOC_IN_VLAN1_PROTO_BE, |
1334 | act->vlan_proto[1]); |
1335 | } |
1336 | if (act->encap_md) |
1337 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_ENCAP_HEADER_ID, |
1338 | act->encap_md->fw_id); |
1339 | else |
1340 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_ENCAP_HEADER_ID, |
1341 | MC_CMD_MAE_ENCAP_HEADER_ALLOC_OUT_ENCAP_HEADER_ID_NULL); |
1342 | if (act->deliver) |
1343 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_ALLOC_IN_DELIVER, |
1344 | act->dest_mport); |
1345 | BUILD_BUG_ON(MAE_MPORT_SELECTOR_NULL); |
1346 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_SET_ALLOC, inbuf, inlen: sizeof(inbuf), |
1347 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1348 | if (rc) |
1349 | return rc; |
1350 | if (outlen < sizeof(outbuf)) |
1351 | return -EIO; |
1352 | act->fw_id = MCDI_DWORD(outbuf, MAE_ACTION_SET_ALLOC_OUT_AS_ID); |
1353 | /* We rely on the high bit of AS IDs always being clear. |
1354 | * The firmware API guarantees this, but let's check it ourselves. |
1355 | */ |
1356 | if (WARN_ON_ONCE(efx_mae_asl_id(act->fw_id))) { |
1357 | efx_mae_free_action_set(efx, fw_id: act->fw_id); |
1358 | return -EIO; |
1359 | } |
1360 | return 0; |
1361 | } |
1362 | |
1363 | int efx_mae_free_action_set(struct efx_nic *efx, u32 fw_id) |
1364 | { |
1365 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_SET_FREE_OUT_LEN(1)); |
1366 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_SET_FREE_IN_LEN(1)); |
1367 | size_t outlen; |
1368 | int rc; |
1369 | |
1370 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_FREE_IN_AS_ID, fw_id); |
1371 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_SET_FREE, inbuf, inlen: sizeof(inbuf), |
1372 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1373 | if (rc) |
1374 | return rc; |
1375 | if (outlen < sizeof(outbuf)) |
1376 | return -EIO; |
1377 | /* FW freed a different ID than we asked for, should never happen. |
1378 | * Warn because it means we've now got a different idea to the FW of |
1379 | * what action-sets exist, which could cause mayhem later. |
1380 | */ |
1381 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_ACTION_SET_FREE_OUT_FREED_AS_ID) != fw_id)) |
1382 | return -EIO; |
1383 | return 0; |
1384 | } |
1385 | |
1386 | int efx_mae_alloc_action_set_list(struct efx_nic *efx, |
1387 | struct efx_tc_action_set_list *acts) |
1388 | { |
1389 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_SET_LIST_ALLOC_OUT_LEN); |
1390 | struct efx_tc_action_set *act; |
1391 | size_t inlen, outlen, i = 0; |
1392 | efx_dword_t *inbuf; |
1393 | int rc; |
1394 | |
1395 | list_for_each_entry(act, &acts->list, list) |
1396 | i++; |
1397 | if (i == 0) |
1398 | return -EINVAL; |
1399 | if (i == 1) { |
1400 | /* Don't wrap an ASL around a single AS, just use the AS_ID |
1401 | * directly. ASLs are a more limited resource. |
1402 | */ |
1403 | act = list_first_entry(&acts->list, struct efx_tc_action_set, list); |
1404 | acts->fw_id = act->fw_id; |
1405 | return 0; |
1406 | } |
1407 | if (i > MC_CMD_MAE_ACTION_SET_LIST_ALLOC_IN_AS_IDS_MAXNUM_MCDI2) |
1408 | return -EOPNOTSUPP; /* Too many actions */ |
1409 | inlen = MC_CMD_MAE_ACTION_SET_LIST_ALLOC_IN_LEN(i); |
1410 | inbuf = kzalloc(size: inlen, GFP_KERNEL); |
1411 | if (!inbuf) |
1412 | return -ENOMEM; |
1413 | i = 0; |
1414 | list_for_each_entry(act, &acts->list, list) { |
1415 | MCDI_SET_ARRAY_DWORD(inbuf, MAE_ACTION_SET_LIST_ALLOC_IN_AS_IDS, |
1416 | i, act->fw_id); |
1417 | i++; |
1418 | } |
1419 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_LIST_ALLOC_IN_COUNT, i); |
1420 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_SET_LIST_ALLOC, inbuf, inlen, |
1421 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1422 | if (rc) |
1423 | goto out_free; |
1424 | if (outlen < sizeof(outbuf)) { |
1425 | rc = -EIO; |
1426 | goto out_free; |
1427 | } |
1428 | acts->fw_id = MCDI_DWORD(outbuf, MAE_ACTION_SET_LIST_ALLOC_OUT_ASL_ID); |
1429 | /* We rely on the high bit of ASL IDs always being set. |
1430 | * The firmware API guarantees this, but let's check it ourselves. |
1431 | */ |
1432 | if (WARN_ON_ONCE(!efx_mae_asl_id(acts->fw_id))) { |
1433 | efx_mae_free_action_set_list(efx, acts); |
1434 | rc = -EIO; |
1435 | } |
1436 | out_free: |
1437 | kfree(objp: inbuf); |
1438 | return rc; |
1439 | } |
1440 | |
1441 | int efx_mae_free_action_set_list(struct efx_nic *efx, |
1442 | struct efx_tc_action_set_list *acts) |
1443 | { |
1444 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_SET_LIST_FREE_OUT_LEN(1)); |
1445 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_SET_LIST_FREE_IN_LEN(1)); |
1446 | size_t outlen; |
1447 | int rc; |
1448 | |
1449 | /* If this is just an AS_ID with no ASL wrapper, then there is |
1450 | * nothing for us to free. (The AS will be freed later.) |
1451 | */ |
1452 | if (efx_mae_asl_id(id: acts->fw_id)) { |
1453 | MCDI_SET_DWORD(inbuf, MAE_ACTION_SET_LIST_FREE_IN_ASL_ID, |
1454 | acts->fw_id); |
1455 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_SET_LIST_FREE, inbuf, |
1456 | inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1457 | if (rc) |
1458 | return rc; |
1459 | if (outlen < sizeof(outbuf)) |
1460 | return -EIO; |
1461 | /* FW freed a different ID than we asked for, should never happen. |
1462 | * Warn because it means we've now got a different idea to the FW of |
1463 | * what action-set-lists exist, which could cause mayhem later. |
1464 | */ |
1465 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_ACTION_SET_LIST_FREE_OUT_FREED_ASL_ID) != acts->fw_id)) |
1466 | return -EIO; |
1467 | } |
1468 | /* We're probably about to free @acts, but let's just make sure its |
1469 | * fw_id is blatted so that it won't look valid if it leaks out. |
1470 | */ |
1471 | acts->fw_id = MC_CMD_MAE_ACTION_SET_LIST_ALLOC_OUT_ACTION_SET_LIST_ID_NULL; |
1472 | return 0; |
1473 | } |
1474 | |
1475 | int efx_mae_register_encap_match(struct efx_nic *efx, |
1476 | struct efx_tc_encap_match *encap) |
1477 | { |
1478 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_OUTER_RULE_INSERT_IN_LEN(MAE_ENC_FIELD_PAIRS_LEN)); |
1479 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_OUTER_RULE_INSERT_OUT_LEN); |
1480 | MCDI_DECLARE_STRUCT_PTR(match_crit); |
1481 | size_t outlen; |
1482 | int rc; |
1483 | |
1484 | rc = efx_mae_encap_type_to_mae_type(type: encap->tun_type); |
1485 | if (rc < 0) |
1486 | return rc; |
1487 | match_crit = _MCDI_DWORD(inbuf, MAE_OUTER_RULE_INSERT_IN_FIELD_MATCH_CRITERIA); |
1488 | /* The struct contains IP src and dst, and udp dport. |
1489 | * So we actually need to filter on IP src and dst, L4 dport, and |
1490 | * ipproto == udp. |
1491 | */ |
1492 | MCDI_SET_DWORD(inbuf, MAE_OUTER_RULE_INSERT_IN_ENCAP_TYPE, rc); |
1493 | #ifdef CONFIG_IPV6 |
1494 | if (encap->src_ip | encap->dst_ip) { |
1495 | #endif |
1496 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP4_BE, |
1497 | encap->src_ip); |
1498 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP4_BE_MASK, |
1499 | ~(__be32)0); |
1500 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP4_BE, |
1501 | encap->dst_ip); |
1502 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP4_BE_MASK, |
1503 | ~(__be32)0); |
1504 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETHER_TYPE_BE, |
1505 | htons(ETH_P_IP)); |
1506 | #ifdef CONFIG_IPV6 |
1507 | } else { |
1508 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP6_BE), |
1509 | &encap->src_ip6, sizeof(encap->src_ip6)); |
1510 | memset(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP6_BE_MASK), |
1511 | 0xff, sizeof(encap->src_ip6)); |
1512 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP6_BE), |
1513 | &encap->dst_ip6, sizeof(encap->dst_ip6)); |
1514 | memset(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP6_BE_MASK), |
1515 | 0xff, sizeof(encap->dst_ip6)); |
1516 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETHER_TYPE_BE, |
1517 | htons(ETH_P_IPV6)); |
1518 | } |
1519 | #endif |
1520 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETHER_TYPE_BE_MASK, |
1521 | ~(__be16)0); |
1522 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_DPORT_BE, |
1523 | encap->udp_dport); |
1524 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_DPORT_BE_MASK, |
1525 | ~(__be16)0); |
1526 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_DPORT_BE, |
1527 | encap->udp_sport); |
1528 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_DPORT_BE_MASK, |
1529 | encap->udp_sport_mask); |
1530 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_PROTO, IPPROTO_UDP); |
1531 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_PROTO_MASK, ~0); |
1532 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_TOS, |
1533 | encap->ip_tos); |
1534 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_TOS_MASK, |
1535 | encap->ip_tos_mask); |
1536 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_OUTER_RULE_INSERT, inbuf, |
1537 | inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1538 | if (rc) |
1539 | return rc; |
1540 | if (outlen < sizeof(outbuf)) |
1541 | return -EIO; |
1542 | encap->fw_id = MCDI_DWORD(outbuf, MAE_OUTER_RULE_INSERT_OUT_OR_ID); |
1543 | return 0; |
1544 | } |
1545 | |
1546 | int efx_mae_unregister_encap_match(struct efx_nic *efx, |
1547 | struct efx_tc_encap_match *encap) |
1548 | { |
1549 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_OUTER_RULE_REMOVE_OUT_LEN(1)); |
1550 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_OUTER_RULE_REMOVE_IN_LEN(1)); |
1551 | size_t outlen; |
1552 | int rc; |
1553 | |
1554 | MCDI_SET_DWORD(inbuf, MAE_OUTER_RULE_REMOVE_IN_OR_ID, encap->fw_id); |
1555 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_OUTER_RULE_REMOVE, inbuf, |
1556 | inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1557 | if (rc) |
1558 | return rc; |
1559 | if (outlen < sizeof(outbuf)) |
1560 | return -EIO; |
1561 | /* FW freed a different ID than we asked for, should also never happen. |
1562 | * Warn because it means we've now got a different idea to the FW of |
1563 | * what encap_mds exist, which could cause mayhem later. |
1564 | */ |
1565 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_OUTER_RULE_REMOVE_OUT_REMOVED_OR_ID) != encap->fw_id)) |
1566 | return -EIO; |
1567 | /* We're probably about to free @encap, but let's just make sure its |
1568 | * fw_id is blatted so that it won't look valid if it leaks out. |
1569 | */ |
1570 | encap->fw_id = MC_CMD_MAE_OUTER_RULE_INSERT_OUT_OUTER_RULE_ID_NULL; |
1571 | return 0; |
1572 | } |
1573 | |
1574 | static int efx_mae_populate_lhs_match_criteria(MCDI_DECLARE_STRUCT_PTR(match_crit), |
1575 | const struct efx_tc_match *match) |
1576 | { |
1577 | if (match->mask.ingress_port) { |
1578 | if (~match->mask.ingress_port) |
1579 | return -EOPNOTSUPP; |
1580 | MCDI_STRUCT_SET_DWORD(match_crit, |
1581 | MAE_ENC_FIELD_PAIRS_INGRESS_MPORT_SELECTOR, |
1582 | match->value.ingress_port); |
1583 | } |
1584 | MCDI_STRUCT_SET_DWORD(match_crit, MAE_ENC_FIELD_PAIRS_INGRESS_MPORT_SELECTOR_MASK, |
1585 | match->mask.ingress_port); |
1586 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETHER_TYPE_BE, |
1587 | match->value.eth_proto); |
1588 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETHER_TYPE_BE_MASK, |
1589 | match->mask.eth_proto); |
1590 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN0_TCI_BE, |
1591 | match->value.vlan_tci[0]); |
1592 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN0_TCI_BE_MASK, |
1593 | match->mask.vlan_tci[0]); |
1594 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN0_PROTO_BE, |
1595 | match->value.vlan_proto[0]); |
1596 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN0_PROTO_BE_MASK, |
1597 | match->mask.vlan_proto[0]); |
1598 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN1_TCI_BE, |
1599 | match->value.vlan_tci[1]); |
1600 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN1_TCI_BE_MASK, |
1601 | match->mask.vlan_tci[1]); |
1602 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN1_PROTO_BE, |
1603 | match->value.vlan_proto[1]); |
1604 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_VLAN1_PROTO_BE_MASK, |
1605 | match->mask.vlan_proto[1]); |
1606 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETH_SADDR_BE), |
1607 | match->value.eth_saddr, ETH_ALEN); |
1608 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETH_SADDR_BE_MASK), |
1609 | match->mask.eth_saddr, ETH_ALEN); |
1610 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETH_DADDR_BE), |
1611 | match->value.eth_daddr, ETH_ALEN); |
1612 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_ETH_DADDR_BE_MASK), |
1613 | match->mask.eth_daddr, ETH_ALEN); |
1614 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_PROTO, |
1615 | match->value.ip_proto); |
1616 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_PROTO_MASK, |
1617 | match->mask.ip_proto); |
1618 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_TOS, |
1619 | match->value.ip_tos); |
1620 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_TOS_MASK, |
1621 | match->mask.ip_tos); |
1622 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_TTL, |
1623 | match->value.ip_ttl); |
1624 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_IP_TTL_MASK, |
1625 | match->mask.ip_ttl); |
1626 | MCDI_STRUCT_POPULATE_BYTE_1(match_crit, |
1627 | MAE_ENC_FIELD_PAIRS_ENC_VLAN_FLAGS, |
1628 | MAE_ENC_FIELD_PAIRS_ENC_IP_FRAG, |
1629 | match->value.ip_frag); |
1630 | MCDI_STRUCT_POPULATE_BYTE_1(match_crit, |
1631 | MAE_ENC_FIELD_PAIRS_ENC_VLAN_FLAGS_MASK, |
1632 | MAE_ENC_FIELD_PAIRS_ENC_IP_FRAG_MASK, |
1633 | match->mask.ip_frag); |
1634 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP4_BE, |
1635 | match->value.src_ip); |
1636 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP4_BE_MASK, |
1637 | match->mask.src_ip); |
1638 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP4_BE, |
1639 | match->value.dst_ip); |
1640 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP4_BE_MASK, |
1641 | match->mask.dst_ip); |
1642 | #ifdef CONFIG_IPV6 |
1643 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP6_BE), |
1644 | &match->value.src_ip6, sizeof(struct in6_addr)); |
1645 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_SRC_IP6_BE_MASK), |
1646 | &match->mask.src_ip6, sizeof(struct in6_addr)); |
1647 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP6_BE), |
1648 | &match->value.dst_ip6, sizeof(struct in6_addr)); |
1649 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_ENC_FIELD_PAIRS_ENC_DST_IP6_BE_MASK), |
1650 | &match->mask.dst_ip6, sizeof(struct in6_addr)); |
1651 | #endif |
1652 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_SPORT_BE, |
1653 | match->value.l4_sport); |
1654 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_SPORT_BE_MASK, |
1655 | match->mask.l4_sport); |
1656 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_DPORT_BE, |
1657 | match->value.l4_dport); |
1658 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_ENC_FIELD_PAIRS_ENC_L4_DPORT_BE_MASK, |
1659 | match->mask.l4_dport); |
1660 | /* No enc-keys in LHS rules. Caps check should have caught this; any |
1661 | * enc-keys from an fLHS should have been translated to regular keys |
1662 | * and any EM should be a pseudo (we're an OR so can't have a direct |
1663 | * EM with another OR). |
1664 | */ |
1665 | if (WARN_ON_ONCE(match->encap && !match->encap->type)) |
1666 | return -EOPNOTSUPP; |
1667 | if (WARN_ON_ONCE(match->mask.enc_src_ip)) |
1668 | return -EOPNOTSUPP; |
1669 | if (WARN_ON_ONCE(match->mask.enc_dst_ip)) |
1670 | return -EOPNOTSUPP; |
1671 | #ifdef CONFIG_IPV6 |
1672 | if (WARN_ON_ONCE(!ipv6_addr_any(&match->mask.enc_src_ip6))) |
1673 | return -EOPNOTSUPP; |
1674 | if (WARN_ON_ONCE(!ipv6_addr_any(&match->mask.enc_dst_ip6))) |
1675 | return -EOPNOTSUPP; |
1676 | #endif |
1677 | if (WARN_ON_ONCE(match->mask.enc_ip_tos)) |
1678 | return -EOPNOTSUPP; |
1679 | if (WARN_ON_ONCE(match->mask.enc_ip_ttl)) |
1680 | return -EOPNOTSUPP; |
1681 | if (WARN_ON_ONCE(match->mask.enc_sport)) |
1682 | return -EOPNOTSUPP; |
1683 | if (WARN_ON_ONCE(match->mask.enc_dport)) |
1684 | return -EOPNOTSUPP; |
1685 | if (WARN_ON_ONCE(match->mask.enc_keyid)) |
1686 | return -EOPNOTSUPP; |
1687 | return 0; |
1688 | } |
1689 | |
1690 | static int efx_mae_insert_lhs_outer_rule(struct efx_nic *efx, |
1691 | struct efx_tc_lhs_rule *rule, u32 prio) |
1692 | { |
1693 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_OUTER_RULE_INSERT_IN_LEN(MAE_ENC_FIELD_PAIRS_LEN)); |
1694 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_OUTER_RULE_INSERT_OUT_LEN); |
1695 | MCDI_DECLARE_STRUCT_PTR(match_crit); |
1696 | const struct efx_tc_lhs_action *act; |
1697 | size_t outlen; |
1698 | int rc; |
1699 | |
1700 | MCDI_SET_DWORD(inbuf, MAE_OUTER_RULE_INSERT_IN_PRIO, prio); |
1701 | /* match */ |
1702 | match_crit = _MCDI_DWORD(inbuf, MAE_OUTER_RULE_INSERT_IN_FIELD_MATCH_CRITERIA); |
1703 | rc = efx_mae_populate_lhs_match_criteria(match_crit, match: &rule->match); |
1704 | if (rc) |
1705 | return rc; |
1706 | |
1707 | /* action */ |
1708 | act = &rule->lhs_act; |
1709 | rc = efx_mae_encap_type_to_mae_type(type: act->tun_type); |
1710 | if (rc < 0) |
1711 | return rc; |
1712 | MCDI_SET_DWORD(inbuf, MAE_OUTER_RULE_INSERT_IN_ENCAP_TYPE, rc); |
1713 | /* We always inhibit CT lookup on TCP_INTERESTING_FLAGS, since the |
1714 | * SW path needs to process the packet to update the conntrack tables |
1715 | * on connection establishment (SYN) or termination (FIN, RST). |
1716 | */ |
1717 | MCDI_POPULATE_DWORD_6(inbuf, MAE_OUTER_RULE_INSERT_IN_LOOKUP_CONTROL, |
1718 | MAE_OUTER_RULE_INSERT_IN_DO_CT, !!act->zone, |
1719 | MAE_OUTER_RULE_INSERT_IN_CT_TCP_FLAGS_INHIBIT, 1, |
1720 | MAE_OUTER_RULE_INSERT_IN_CT_DOMAIN, |
1721 | act->zone ? act->zone->zone : 0, |
1722 | MAE_OUTER_RULE_INSERT_IN_CT_VNI_MODE, |
1723 | MAE_CT_VNI_MODE_ZERO, |
1724 | MAE_OUTER_RULE_INSERT_IN_DO_COUNT, !!act->count, |
1725 | MAE_OUTER_RULE_INSERT_IN_RECIRC_ID, |
1726 | act->rid ? act->rid->fw_id : 0); |
1727 | if (act->count) |
1728 | MCDI_SET_DWORD(inbuf, MAE_OUTER_RULE_INSERT_IN_COUNTER_ID, |
1729 | act->count->cnt->fw_id); |
1730 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_OUTER_RULE_INSERT, inbuf, |
1731 | inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1732 | if (rc) |
1733 | return rc; |
1734 | if (outlen < sizeof(outbuf)) |
1735 | return -EIO; |
1736 | rule->fw_id = MCDI_DWORD(outbuf, MAE_OUTER_RULE_INSERT_OUT_OR_ID); |
1737 | return 0; |
1738 | } |
1739 | |
1740 | static int efx_mae_populate_match_criteria(MCDI_DECLARE_STRUCT_PTR(match_crit), |
1741 | const struct efx_tc_match *match); |
1742 | |
1743 | static int efx_mae_insert_lhs_action_rule(struct efx_nic *efx, |
1744 | struct efx_tc_lhs_rule *rule, |
1745 | u32 prio) |
1746 | { |
1747 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_RULE_INSERT_IN_LEN(MAE_FIELD_MASK_VALUE_PAIRS_V2_LEN)); |
1748 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_RULE_INSERT_OUT_LEN); |
1749 | struct efx_tc_lhs_action *act = &rule->lhs_act; |
1750 | MCDI_DECLARE_STRUCT_PTR(match_crit); |
1751 | MCDI_DECLARE_STRUCT_PTR(response); |
1752 | size_t outlen; |
1753 | int rc; |
1754 | |
1755 | match_crit = _MCDI_DWORD(inbuf, MAE_ACTION_RULE_INSERT_IN_MATCH_CRITERIA); |
1756 | response = _MCDI_DWORD(inbuf, MAE_ACTION_RULE_INSERT_IN_RESPONSE); |
1757 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_ASL_ID, |
1758 | MC_CMD_MAE_ACTION_SET_LIST_ALLOC_OUT_ACTION_SET_LIST_ID_NULL); |
1759 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_AS_ID, |
1760 | MC_CMD_MAE_ACTION_SET_ALLOC_OUT_ACTION_SET_ID_NULL); |
1761 | EFX_POPULATE_DWORD_5(*_MCDI_STRUCT_DWORD(response, MAE_ACTION_RULE_RESPONSE_LOOKUP_CONTROL), |
1762 | MAE_ACTION_RULE_RESPONSE_DO_CT, !!act->zone, |
1763 | MAE_ACTION_RULE_RESPONSE_DO_RECIRC, |
1764 | act->rid && !act->zone, |
1765 | MAE_ACTION_RULE_RESPONSE_CT_VNI_MODE, |
1766 | MAE_CT_VNI_MODE_ZERO, |
1767 | MAE_ACTION_RULE_RESPONSE_RECIRC_ID, |
1768 | act->rid ? act->rid->fw_id : 0, |
1769 | MAE_ACTION_RULE_RESPONSE_CT_DOMAIN, |
1770 | act->zone ? act->zone->zone : 0); |
1771 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_COUNTER_ID, |
1772 | act->count ? act->count->cnt->fw_id : |
1773 | MC_CMD_MAE_COUNTER_ALLOC_OUT_COUNTER_ID_NULL); |
1774 | MCDI_SET_DWORD(inbuf, MAE_ACTION_RULE_INSERT_IN_PRIO, prio); |
1775 | rc = efx_mae_populate_match_criteria(match_crit, match: &rule->match); |
1776 | if (rc) |
1777 | return rc; |
1778 | |
1779 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_RULE_INSERT, inbuf, inlen: sizeof(inbuf), |
1780 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1781 | if (rc) |
1782 | return rc; |
1783 | if (outlen < sizeof(outbuf)) |
1784 | return -EIO; |
1785 | rule->fw_id = MCDI_DWORD(outbuf, MAE_ACTION_RULE_INSERT_OUT_AR_ID); |
1786 | return 0; |
1787 | } |
1788 | |
1789 | int efx_mae_insert_lhs_rule(struct efx_nic *efx, struct efx_tc_lhs_rule *rule, |
1790 | u32 prio) |
1791 | { |
1792 | if (rule->is_ar) |
1793 | return efx_mae_insert_lhs_action_rule(efx, rule, prio); |
1794 | return efx_mae_insert_lhs_outer_rule(efx, rule, prio); |
1795 | } |
1796 | |
1797 | static int efx_mae_remove_lhs_outer_rule(struct efx_nic *efx, |
1798 | struct efx_tc_lhs_rule *rule) |
1799 | { |
1800 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_OUTER_RULE_REMOVE_OUT_LEN(1)); |
1801 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_OUTER_RULE_REMOVE_IN_LEN(1)); |
1802 | size_t outlen; |
1803 | int rc; |
1804 | |
1805 | MCDI_SET_DWORD(inbuf, MAE_OUTER_RULE_REMOVE_IN_OR_ID, rule->fw_id); |
1806 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_OUTER_RULE_REMOVE, inbuf, |
1807 | inlen: sizeof(inbuf), outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
1808 | if (rc) |
1809 | return rc; |
1810 | if (outlen < sizeof(outbuf)) |
1811 | return -EIO; |
1812 | /* FW freed a different ID than we asked for, should also never happen. |
1813 | * Warn because it means we've now got a different idea to the FW of |
1814 | * what encap_mds exist, which could cause mayhem later. |
1815 | */ |
1816 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_OUTER_RULE_REMOVE_OUT_REMOVED_OR_ID) != rule->fw_id)) |
1817 | return -EIO; |
1818 | /* We're probably about to free @rule, but let's just make sure its |
1819 | * fw_id is blatted so that it won't look valid if it leaks out. |
1820 | */ |
1821 | rule->fw_id = MC_CMD_MAE_OUTER_RULE_INSERT_OUT_OUTER_RULE_ID_NULL; |
1822 | return 0; |
1823 | } |
1824 | |
1825 | int efx_mae_remove_lhs_rule(struct efx_nic *efx, struct efx_tc_lhs_rule *rule) |
1826 | { |
1827 | if (rule->is_ar) |
1828 | return efx_mae_delete_rule(efx, id: rule->fw_id); |
1829 | return efx_mae_remove_lhs_outer_rule(efx, rule); |
1830 | } |
1831 | |
1832 | /* Populating is done by taking each byte of @value in turn and storing |
1833 | * it in the appropriate bits of @row. @value must be big-endian; we |
1834 | * convert it to little-endianness as we go. |
1835 | */ |
1836 | static int efx_mae_table_populate(struct efx_tc_table_field_fmt field, |
1837 | __le32 *row, size_t row_bits, |
1838 | void *value, size_t value_size) |
1839 | { |
1840 | unsigned int i; |
1841 | |
1842 | /* For now only scheme 0 is supported for any field, so we check here |
1843 | * (rather than, say, in calling code, which knows the semantics and |
1844 | * could in principle encode for other schemes). |
1845 | */ |
1846 | if (field.scheme) |
1847 | return -EOPNOTSUPP; |
1848 | if (DIV_ROUND_UP(field.width, 8) != value_size) |
1849 | return -EINVAL; |
1850 | if (field.lbn + field.width > row_bits) |
1851 | return -EINVAL; |
1852 | for (i = 0; i < value_size; i++) { |
1853 | unsigned int bn = field.lbn + i * 8; |
1854 | unsigned int wn = bn / 32; |
1855 | u64 v; |
1856 | |
1857 | v = ((u8 *)value)[value_size - i - 1]; |
1858 | v <<= (bn % 32); |
1859 | row[wn] |= cpu_to_le32(v & 0xffffffff); |
1860 | if (wn * 32 < row_bits) |
1861 | row[wn + 1] |= cpu_to_le32(v >> 32); |
1862 | } |
1863 | return 0; |
1864 | } |
1865 | |
1866 | static int efx_mae_table_populate_bool(struct efx_tc_table_field_fmt field, |
1867 | __le32 *row, size_t row_bits, bool value) |
1868 | { |
1869 | u8 v = value ? 1 : 0; |
1870 | |
1871 | if (field.width != 1) |
1872 | return -EINVAL; |
1873 | return efx_mae_table_populate(field, row, row_bits, value: &v, value_size: 1); |
1874 | } |
1875 | |
1876 | static int efx_mae_table_populate_ipv4(struct efx_tc_table_field_fmt field, |
1877 | __le32 *row, size_t row_bits, __be32 value) |
1878 | { |
1879 | /* IPv4 is placed in the first 4 bytes of an IPv6-sized field */ |
1880 | struct in6_addr v = {}; |
1881 | |
1882 | if (field.width != 128) |
1883 | return -EINVAL; |
1884 | v.s6_addr32[0] = value; |
1885 | return efx_mae_table_populate(field, row, row_bits, value: &v, value_size: sizeof(v)); |
1886 | } |
1887 | |
1888 | static int efx_mae_table_populate_u24(struct efx_tc_table_field_fmt field, |
1889 | __le32 *row, size_t row_bits, u32 value) |
1890 | { |
1891 | __be32 v = cpu_to_be32(value); |
1892 | |
1893 | /* We adjust value_size here since just 3 bytes will be copied, and |
1894 | * the pointer to the value is set discarding the first byte which is |
1895 | * the most significant byte for a big-endian 4-bytes value. |
1896 | */ |
1897 | return efx_mae_table_populate(field, row, row_bits, value: ((void *)&v) + 1, |
1898 | value_size: sizeof(v) - 1); |
1899 | } |
1900 | |
1901 | #define _TABLE_POPULATE(dst, dw, _field, _value) ({ \ |
1902 | typeof(_value) _v = _value; \ |
1903 | \ |
1904 | (_field.width == sizeof(_value) * 8) ? \ |
1905 | efx_mae_table_populate(_field, dst, dw, &_v, \ |
1906 | sizeof(_v)) : -EINVAL; \ |
1907 | }) |
1908 | #define TABLE_POPULATE_KEY_IPV4(dst, _table, _field, _value) \ |
1909 | efx_mae_table_populate_ipv4(efx->tc->meta_##_table.desc.keys \ |
1910 | [efx->tc->meta_##_table.keys._field##_idx],\ |
1911 | dst, efx->tc->meta_##_table.desc.key_width,\ |
1912 | _value) |
1913 | #define TABLE_POPULATE_KEY(dst, _table, _field, _value) \ |
1914 | _TABLE_POPULATE(dst, efx->tc->meta_##_table.desc.key_width, \ |
1915 | efx->tc->meta_##_table.desc.keys \ |
1916 | [efx->tc->meta_##_table.keys._field##_idx], \ |
1917 | _value) |
1918 | |
1919 | #define TABLE_POPULATE_RESP_BOOL(dst, _table, _field, _value) \ |
1920 | efx_mae_table_populate_bool(efx->tc->meta_##_table.desc.resps \ |
1921 | [efx->tc->meta_##_table.resps._field##_idx],\ |
1922 | dst, efx->tc->meta_##_table.desc.resp_width,\ |
1923 | _value) |
1924 | #define TABLE_POPULATE_RESP(dst, _table, _field, _value) \ |
1925 | _TABLE_POPULATE(dst, efx->tc->meta_##_table.desc.resp_width, \ |
1926 | efx->tc->meta_##_table.desc.resps \ |
1927 | [efx->tc->meta_##_table.resps._field##_idx], \ |
1928 | _value) |
1929 | |
1930 | #define TABLE_POPULATE_RESP_U24(dst, _table, _field, _value) \ |
1931 | efx_mae_table_populate_u24(efx->tc->meta_##_table.desc.resps \ |
1932 | [efx->tc->meta_##_table.resps._field##_idx],\ |
1933 | dst, efx->tc->meta_##_table.desc.resp_width,\ |
1934 | _value) |
1935 | |
1936 | static int efx_mae_populate_ct_key(struct efx_nic *efx, __le32 *key, size_t kw, |
1937 | struct efx_tc_ct_entry *conn) |
1938 | { |
1939 | bool ipv6 = conn->eth_proto == htons(ETH_P_IPV6); |
1940 | int rc; |
1941 | |
1942 | rc = TABLE_POPULATE_KEY(key, ct, eth_proto, conn->eth_proto); |
1943 | if (rc) |
1944 | return rc; |
1945 | rc = TABLE_POPULATE_KEY(key, ct, ip_proto, conn->ip_proto); |
1946 | if (rc) |
1947 | return rc; |
1948 | if (ipv6) |
1949 | rc = TABLE_POPULATE_KEY(key, ct, src_ip, conn->src_ip6); |
1950 | else |
1951 | rc = TABLE_POPULATE_KEY_IPV4(key, ct, src_ip, conn->src_ip); |
1952 | if (rc) |
1953 | return rc; |
1954 | if (ipv6) |
1955 | rc = TABLE_POPULATE_KEY(key, ct, dst_ip, conn->dst_ip6); |
1956 | else |
1957 | rc = TABLE_POPULATE_KEY_IPV4(key, ct, dst_ip, conn->dst_ip); |
1958 | if (rc) |
1959 | return rc; |
1960 | rc = TABLE_POPULATE_KEY(key, ct, l4_sport, conn->l4_sport); |
1961 | if (rc) |
1962 | return rc; |
1963 | rc = TABLE_POPULATE_KEY(key, ct, l4_dport, conn->l4_dport); |
1964 | if (rc) |
1965 | return rc; |
1966 | return TABLE_POPULATE_KEY(key, ct, zone, cpu_to_be16(conn->zone->zone)); |
1967 | } |
1968 | |
1969 | int efx_mae_insert_ct(struct efx_nic *efx, struct efx_tc_ct_entry *conn) |
1970 | { |
1971 | bool ipv6 = conn->eth_proto == htons(ETH_P_IPV6); |
1972 | __le32 *key = NULL, *resp = NULL; |
1973 | size_t inlen, kw, rw; |
1974 | efx_dword_t *inbuf; |
1975 | int rc = -ENOMEM; |
1976 | |
1977 | /* Check table access is supported */ |
1978 | if (!efx->tc->meta_ct.hooked) |
1979 | return -EOPNOTSUPP; |
1980 | |
1981 | /* key/resp widths are in bits; convert to dwords for IN_LEN */ |
1982 | kw = DIV_ROUND_UP(efx->tc->meta_ct.desc.key_width, 32); |
1983 | rw = DIV_ROUND_UP(efx->tc->meta_ct.desc.resp_width, 32); |
1984 | BUILD_BUG_ON(sizeof(__le32) != MC_CMD_TABLE_INSERT_IN_DATA_LEN); |
1985 | inlen = MC_CMD_TABLE_INSERT_IN_LEN(kw + rw); |
1986 | if (inlen > MC_CMD_TABLE_INSERT_IN_LENMAX_MCDI2) |
1987 | return -E2BIG; |
1988 | inbuf = kzalloc(size: inlen, GFP_KERNEL); |
1989 | if (!inbuf) |
1990 | return -ENOMEM; |
1991 | |
1992 | key = kcalloc(n: kw, size: sizeof(__le32), GFP_KERNEL); |
1993 | if (!key) |
1994 | goto out_free; |
1995 | resp = kcalloc(n: rw, size: sizeof(__le32), GFP_KERNEL); |
1996 | if (!resp) |
1997 | goto out_free; |
1998 | |
1999 | rc = efx_mae_populate_ct_key(efx, key, kw, conn); |
2000 | if (rc) |
2001 | goto out_free; |
2002 | |
2003 | rc = TABLE_POPULATE_RESP_BOOL(resp, ct, dnat, conn->dnat); |
2004 | if (rc) |
2005 | goto out_free; |
2006 | /* No support in hw for IPv6 NAT; field is only 32 bits */ |
2007 | if (!ipv6) |
2008 | rc = TABLE_POPULATE_RESP(resp, ct, nat_ip, conn->nat_ip); |
2009 | if (rc) |
2010 | goto out_free; |
2011 | rc = TABLE_POPULATE_RESP(resp, ct, l4_natport, conn->l4_natport); |
2012 | if (rc) |
2013 | goto out_free; |
2014 | rc = TABLE_POPULATE_RESP(resp, ct, mark, cpu_to_be32(conn->mark)); |
2015 | if (rc) |
2016 | goto out_free; |
2017 | rc = TABLE_POPULATE_RESP_U24(resp, ct, counter_id, conn->cnt->fw_id); |
2018 | if (rc) |
2019 | goto out_free; |
2020 | |
2021 | MCDI_SET_DWORD(inbuf, TABLE_INSERT_IN_TABLE_ID, TABLE_ID_CONNTRACK_TABLE); |
2022 | MCDI_SET_WORD(inbuf, TABLE_INSERT_IN_KEY_WIDTH, |
2023 | efx->tc->meta_ct.desc.key_width); |
2024 | /* MASK_WIDTH is zero as CT is a BCAM */ |
2025 | MCDI_SET_WORD(inbuf, TABLE_INSERT_IN_RESP_WIDTH, |
2026 | efx->tc->meta_ct.desc.resp_width); |
2027 | memcpy(MCDI_PTR(inbuf, TABLE_INSERT_IN_DATA), key, kw * sizeof(__le32)); |
2028 | memcpy(MCDI_PTR(inbuf, TABLE_INSERT_IN_DATA) + kw * sizeof(__le32), |
2029 | resp, rw * sizeof(__le32)); |
2030 | |
2031 | BUILD_BUG_ON(MC_CMD_TABLE_INSERT_OUT_LEN); |
2032 | |
2033 | rc = efx_mcdi_rpc(efx, MC_CMD_TABLE_INSERT, inbuf, inlen, NULL, outlen: 0, NULL); |
2034 | |
2035 | out_free: |
2036 | kfree(objp: resp); |
2037 | kfree(objp: key); |
2038 | kfree(objp: inbuf); |
2039 | return rc; |
2040 | } |
2041 | |
2042 | int efx_mae_remove_ct(struct efx_nic *efx, struct efx_tc_ct_entry *conn) |
2043 | { |
2044 | __le32 *key = NULL; |
2045 | efx_dword_t *inbuf; |
2046 | size_t inlen, kw; |
2047 | int rc = -ENOMEM; |
2048 | |
2049 | /* Check table access is supported */ |
2050 | if (!efx->tc->meta_ct.hooked) |
2051 | return -EOPNOTSUPP; |
2052 | |
2053 | /* key width is in bits; convert to dwords for IN_LEN */ |
2054 | kw = DIV_ROUND_UP(efx->tc->meta_ct.desc.key_width, 32); |
2055 | BUILD_BUG_ON(sizeof(__le32) != MC_CMD_TABLE_DELETE_IN_DATA_LEN); |
2056 | inlen = MC_CMD_TABLE_DELETE_IN_LEN(kw); |
2057 | if (inlen > MC_CMD_TABLE_DELETE_IN_LENMAX_MCDI2) |
2058 | return -E2BIG; |
2059 | inbuf = kzalloc(size: inlen, GFP_KERNEL); |
2060 | if (!inbuf) |
2061 | return -ENOMEM; |
2062 | |
2063 | key = kcalloc(n: kw, size: sizeof(__le32), GFP_KERNEL); |
2064 | if (!key) |
2065 | goto out_free; |
2066 | |
2067 | rc = efx_mae_populate_ct_key(efx, key, kw, conn); |
2068 | if (rc) |
2069 | goto out_free; |
2070 | |
2071 | MCDI_SET_DWORD(inbuf, TABLE_DELETE_IN_TABLE_ID, TABLE_ID_CONNTRACK_TABLE); |
2072 | MCDI_SET_WORD(inbuf, TABLE_DELETE_IN_KEY_WIDTH, |
2073 | efx->tc->meta_ct.desc.key_width); |
2074 | /* MASK_WIDTH is zero as CT is a BCAM */ |
2075 | /* RESP_WIDTH is zero for DELETE */ |
2076 | memcpy(MCDI_PTR(inbuf, TABLE_DELETE_IN_DATA), key, kw * sizeof(__le32)); |
2077 | |
2078 | BUILD_BUG_ON(MC_CMD_TABLE_DELETE_OUT_LEN); |
2079 | |
2080 | rc = efx_mcdi_rpc(efx, MC_CMD_TABLE_DELETE, inbuf, inlen, NULL, outlen: 0, NULL); |
2081 | |
2082 | out_free: |
2083 | kfree(objp: key); |
2084 | kfree(objp: inbuf); |
2085 | return rc; |
2086 | } |
2087 | |
2088 | static int efx_mae_populate_match_criteria(MCDI_DECLARE_STRUCT_PTR(match_crit), |
2089 | const struct efx_tc_match *match) |
2090 | { |
2091 | if (match->mask.ingress_port) { |
2092 | if (~match->mask.ingress_port) |
2093 | return -EOPNOTSUPP; |
2094 | MCDI_STRUCT_SET_DWORD(match_crit, |
2095 | MAE_FIELD_MASK_VALUE_PAIRS_V2_INGRESS_MPORT_SELECTOR, |
2096 | match->value.ingress_port); |
2097 | } |
2098 | MCDI_STRUCT_SET_DWORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_INGRESS_MPORT_SELECTOR_MASK, |
2099 | match->mask.ingress_port); |
2100 | EFX_POPULATE_DWORD_5(*_MCDI_STRUCT_DWORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_FLAGS), |
2101 | MAE_FIELD_MASK_VALUE_PAIRS_V2_DO_CT, |
2102 | match->value.ct_state_trk, |
2103 | MAE_FIELD_MASK_VALUE_PAIRS_V2_CT_HIT, |
2104 | match->value.ct_state_est, |
2105 | MAE_FIELD_MASK_VALUE_PAIRS_V2_IS_IP_FRAG, |
2106 | match->value.ip_frag, |
2107 | MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_FIRST_FRAG, |
2108 | match->value.ip_firstfrag, |
2109 | MAE_FIELD_MASK_VALUE_PAIRS_V2_TCP_SYN_FIN_RST, |
2110 | match->value.tcp_syn_fin_rst); |
2111 | EFX_POPULATE_DWORD_5(*_MCDI_STRUCT_DWORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_FLAGS_MASK), |
2112 | MAE_FIELD_MASK_VALUE_PAIRS_V2_DO_CT, |
2113 | match->mask.ct_state_trk, |
2114 | MAE_FIELD_MASK_VALUE_PAIRS_V2_CT_HIT, |
2115 | match->mask.ct_state_est, |
2116 | MAE_FIELD_MASK_VALUE_PAIRS_V2_IS_IP_FRAG, |
2117 | match->mask.ip_frag, |
2118 | MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_FIRST_FRAG, |
2119 | match->mask.ip_firstfrag, |
2120 | MAE_FIELD_MASK_VALUE_PAIRS_V2_TCP_SYN_FIN_RST, |
2121 | match->mask.tcp_syn_fin_rst); |
2122 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_RECIRC_ID, |
2123 | match->value.recirc_id); |
2124 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_RECIRC_ID_MASK, |
2125 | match->mask.recirc_id); |
2126 | MCDI_STRUCT_SET_DWORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_CT_MARK, |
2127 | match->value.ct_mark); |
2128 | MCDI_STRUCT_SET_DWORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_CT_MARK_MASK, |
2129 | match->mask.ct_mark); |
2130 | MCDI_STRUCT_SET_WORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_CT_DOMAIN, |
2131 | match->value.ct_zone); |
2132 | MCDI_STRUCT_SET_WORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_CT_DOMAIN_MASK, |
2133 | match->mask.ct_zone); |
2134 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ETHER_TYPE_BE, |
2135 | match->value.eth_proto); |
2136 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ETHER_TYPE_BE_MASK, |
2137 | match->mask.eth_proto); |
2138 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN0_TCI_BE, |
2139 | match->value.vlan_tci[0]); |
2140 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN0_TCI_BE_MASK, |
2141 | match->mask.vlan_tci[0]); |
2142 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN0_PROTO_BE, |
2143 | match->value.vlan_proto[0]); |
2144 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN0_PROTO_BE_MASK, |
2145 | match->mask.vlan_proto[0]); |
2146 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN1_TCI_BE, |
2147 | match->value.vlan_tci[1]); |
2148 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN1_TCI_BE_MASK, |
2149 | match->mask.vlan_tci[1]); |
2150 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN1_PROTO_BE, |
2151 | match->value.vlan_proto[1]); |
2152 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_VLAN1_PROTO_BE_MASK, |
2153 | match->mask.vlan_proto[1]); |
2154 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ETH_SADDR_BE), |
2155 | match->value.eth_saddr, ETH_ALEN); |
2156 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ETH_SADDR_BE_MASK), |
2157 | match->mask.eth_saddr, ETH_ALEN); |
2158 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ETH_DADDR_BE), |
2159 | match->value.eth_daddr, ETH_ALEN); |
2160 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ETH_DADDR_BE_MASK), |
2161 | match->mask.eth_daddr, ETH_ALEN); |
2162 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_PROTO, |
2163 | match->value.ip_proto); |
2164 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_PROTO_MASK, |
2165 | match->mask.ip_proto); |
2166 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_TOS, |
2167 | match->value.ip_tos); |
2168 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_TOS_MASK, |
2169 | match->mask.ip_tos); |
2170 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_TTL, |
2171 | match->value.ip_ttl); |
2172 | MCDI_STRUCT_SET_BYTE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_IP_TTL_MASK, |
2173 | match->mask.ip_ttl); |
2174 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_SRC_IP4_BE, |
2175 | match->value.src_ip); |
2176 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_SRC_IP4_BE_MASK, |
2177 | match->mask.src_ip); |
2178 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_DST_IP4_BE, |
2179 | match->value.dst_ip); |
2180 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_DST_IP4_BE_MASK, |
2181 | match->mask.dst_ip); |
2182 | #ifdef CONFIG_IPV6 |
2183 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_SRC_IP6_BE), |
2184 | &match->value.src_ip6, sizeof(struct in6_addr)); |
2185 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_SRC_IP6_BE_MASK), |
2186 | &match->mask.src_ip6, sizeof(struct in6_addr)); |
2187 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_DST_IP6_BE), |
2188 | &match->value.dst_ip6, sizeof(struct in6_addr)); |
2189 | memcpy(MCDI_STRUCT_PTR(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_DST_IP6_BE_MASK), |
2190 | &match->mask.dst_ip6, sizeof(struct in6_addr)); |
2191 | #endif |
2192 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_L4_SPORT_BE, |
2193 | match->value.l4_sport); |
2194 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_L4_SPORT_BE_MASK, |
2195 | match->mask.l4_sport); |
2196 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_L4_DPORT_BE, |
2197 | match->value.l4_dport); |
2198 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_L4_DPORT_BE_MASK, |
2199 | match->mask.l4_dport); |
2200 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_TCP_FLAGS_BE, |
2201 | match->value.tcp_flags); |
2202 | MCDI_STRUCT_SET_WORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_TCP_FLAGS_BE_MASK, |
2203 | match->mask.tcp_flags); |
2204 | /* enc-keys are handled indirectly, through encap_match ID */ |
2205 | if (match->encap) { |
2206 | MCDI_STRUCT_SET_DWORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_OUTER_RULE_ID, |
2207 | match->encap->fw_id); |
2208 | MCDI_STRUCT_SET_DWORD(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_OUTER_RULE_ID_MASK, |
2209 | U32_MAX); |
2210 | /* enc_keyid (VNI/VSID) is not part of the encap_match */ |
2211 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ENC_VNET_ID_BE, |
2212 | match->value.enc_keyid); |
2213 | MCDI_STRUCT_SET_DWORD_BE(match_crit, MAE_FIELD_MASK_VALUE_PAIRS_V2_ENC_VNET_ID_BE_MASK, |
2214 | match->mask.enc_keyid); |
2215 | } else if (WARN_ON_ONCE(match->mask.enc_src_ip) || |
2216 | WARN_ON_ONCE(match->mask.enc_dst_ip) || |
2217 | WARN_ON_ONCE(!ipv6_addr_any(&match->mask.enc_src_ip6)) || |
2218 | WARN_ON_ONCE(!ipv6_addr_any(&match->mask.enc_dst_ip6)) || |
2219 | WARN_ON_ONCE(match->mask.enc_ip_tos) || |
2220 | WARN_ON_ONCE(match->mask.enc_ip_ttl) || |
2221 | WARN_ON_ONCE(match->mask.enc_sport) || |
2222 | WARN_ON_ONCE(match->mask.enc_dport) || |
2223 | WARN_ON_ONCE(match->mask.enc_keyid)) { |
2224 | /* No enc-keys should appear in a rule without an encap_match */ |
2225 | return -EOPNOTSUPP; |
2226 | } |
2227 | return 0; |
2228 | } |
2229 | |
2230 | int efx_mae_insert_rule(struct efx_nic *efx, const struct efx_tc_match *match, |
2231 | u32 prio, u32 acts_id, u32 *id) |
2232 | { |
2233 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_RULE_INSERT_IN_LEN(MAE_FIELD_MASK_VALUE_PAIRS_V2_LEN)); |
2234 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_RULE_INSERT_OUT_LEN); |
2235 | MCDI_DECLARE_STRUCT_PTR(match_crit); |
2236 | MCDI_DECLARE_STRUCT_PTR(response); |
2237 | size_t outlen; |
2238 | int rc; |
2239 | |
2240 | if (!id) |
2241 | return -EINVAL; |
2242 | |
2243 | match_crit = _MCDI_DWORD(inbuf, MAE_ACTION_RULE_INSERT_IN_MATCH_CRITERIA); |
2244 | response = _MCDI_DWORD(inbuf, MAE_ACTION_RULE_INSERT_IN_RESPONSE); |
2245 | if (efx_mae_asl_id(id: acts_id)) { |
2246 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_ASL_ID, acts_id); |
2247 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_AS_ID, |
2248 | MC_CMD_MAE_ACTION_SET_ALLOC_OUT_ACTION_SET_ID_NULL); |
2249 | } else { |
2250 | /* We only had one AS, so we didn't wrap it in an ASL */ |
2251 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_ASL_ID, |
2252 | MC_CMD_MAE_ACTION_SET_LIST_ALLOC_OUT_ACTION_SET_LIST_ID_NULL); |
2253 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_AS_ID, acts_id); |
2254 | } |
2255 | MCDI_SET_DWORD(inbuf, MAE_ACTION_RULE_INSERT_IN_PRIO, prio); |
2256 | rc = efx_mae_populate_match_criteria(match_crit, match); |
2257 | if (rc) |
2258 | return rc; |
2259 | |
2260 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_RULE_INSERT, inbuf, inlen: sizeof(inbuf), |
2261 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
2262 | if (rc) |
2263 | return rc; |
2264 | if (outlen < sizeof(outbuf)) |
2265 | return -EIO; |
2266 | *id = MCDI_DWORD(outbuf, MAE_ACTION_RULE_INSERT_OUT_AR_ID); |
2267 | return 0; |
2268 | } |
2269 | |
2270 | int efx_mae_update_rule(struct efx_nic *efx, u32 acts_id, u32 id) |
2271 | { |
2272 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_RULE_UPDATE_IN_LEN); |
2273 | MCDI_DECLARE_STRUCT_PTR(response); |
2274 | |
2275 | BUILD_BUG_ON(MC_CMD_MAE_ACTION_RULE_UPDATE_OUT_LEN); |
2276 | response = _MCDI_DWORD(inbuf, MAE_ACTION_RULE_UPDATE_IN_RESPONSE); |
2277 | |
2278 | MCDI_SET_DWORD(inbuf, MAE_ACTION_RULE_UPDATE_IN_AR_ID, id); |
2279 | if (efx_mae_asl_id(id: acts_id)) { |
2280 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_ASL_ID, acts_id); |
2281 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_AS_ID, |
2282 | MC_CMD_MAE_ACTION_SET_ALLOC_OUT_ACTION_SET_ID_NULL); |
2283 | } else { |
2284 | /* We only had one AS, so we didn't wrap it in an ASL */ |
2285 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_ASL_ID, |
2286 | MC_CMD_MAE_ACTION_SET_LIST_ALLOC_OUT_ACTION_SET_LIST_ID_NULL); |
2287 | MCDI_STRUCT_SET_DWORD(response, MAE_ACTION_RULE_RESPONSE_AS_ID, acts_id); |
2288 | } |
2289 | return efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_RULE_UPDATE, inbuf, inlen: sizeof(inbuf), |
2290 | NULL, outlen: 0, NULL); |
2291 | } |
2292 | |
2293 | int efx_mae_delete_rule(struct efx_nic *efx, u32 id) |
2294 | { |
2295 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MAE_ACTION_RULE_DELETE_OUT_LEN(1)); |
2296 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAE_ACTION_RULE_DELETE_IN_LEN(1)); |
2297 | size_t outlen; |
2298 | int rc; |
2299 | |
2300 | MCDI_SET_DWORD(inbuf, MAE_ACTION_RULE_DELETE_IN_AR_ID, id); |
2301 | rc = efx_mcdi_rpc(efx, MC_CMD_MAE_ACTION_RULE_DELETE, inbuf, inlen: sizeof(inbuf), |
2302 | outbuf, outlen: sizeof(outbuf), outlen_actual: &outlen); |
2303 | if (rc) |
2304 | return rc; |
2305 | if (outlen < sizeof(outbuf)) |
2306 | return -EIO; |
2307 | /* FW freed a different ID than we asked for, should also never happen. |
2308 | * Warn because it means we've now got a different idea to the FW of |
2309 | * what rules exist, which could cause mayhem later. |
2310 | */ |
2311 | if (WARN_ON(MCDI_DWORD(outbuf, MAE_ACTION_RULE_DELETE_OUT_DELETED_AR_ID) != id)) |
2312 | return -EIO; |
2313 | return 0; |
2314 | } |
2315 | |
2316 | int efx_init_mae(struct efx_nic *efx) |
2317 | { |
2318 | struct ef100_nic_data *nic_data = efx->nic_data; |
2319 | struct efx_mae *mae; |
2320 | int rc; |
2321 | |
2322 | if (!nic_data->have_mport) |
2323 | return -EINVAL; |
2324 | |
2325 | mae = kmalloc(size: sizeof(*mae), GFP_KERNEL); |
2326 | if (!mae) |
2327 | return -ENOMEM; |
2328 | |
2329 | rc = rhashtable_init(ht: &mae->mports_ht, params: &efx_mae_mports_ht_params); |
2330 | if (rc < 0) { |
2331 | kfree(objp: mae); |
2332 | return rc; |
2333 | } |
2334 | efx->mae = mae; |
2335 | mae->efx = efx; |
2336 | return 0; |
2337 | } |
2338 | |
2339 | void efx_fini_mae(struct efx_nic *efx) |
2340 | { |
2341 | struct efx_mae *mae = efx->mae; |
2342 | |
2343 | kfree(objp: mae); |
2344 | efx->mae = NULL; |
2345 | } |
2346 | |