1// SPDX-License-Identifier: GPL-2.0+
2// Copyright (c) 2016-2017 Hisilicon Limited.
3
4#include "hclge_main.h"
5#include "hclge_mbx.h"
6#include "hnae3.h"
7#include "hclge_comm_rss.h"
8
9#define CREATE_TRACE_POINTS
10#include "hclge_trace.h"
11
12static u16 hclge_errno_to_resp(int errno)
13{
14 int resp = abs(errno);
15
16 /* The status for pf to vf msg cmd is u16, constrainted by HW.
17 * We need to keep the same type with it.
18 * The intput errno is the stander error code, it's safely to
19 * use a u16 to store the abs(errno).
20 */
21 return (u16)resp;
22}
23
24/* hclge_gen_resp_to_vf: used to generate a synchronous response to VF when PF
25 * receives a mailbox message from VF.
26 * @vport: pointer to struct hclge_vport
27 * @vf_to_pf_req: pointer to hclge_mbx_vf_to_pf_cmd of the original mailbox
28 * message
29 * @resp_status: indicate to VF whether its request success(0) or failed.
30 */
31static int hclge_gen_resp_to_vf(struct hclge_vport *vport,
32 struct hclge_mbx_vf_to_pf_cmd *vf_to_pf_req,
33 struct hclge_respond_to_vf_msg *resp_msg)
34{
35 struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
36 struct hclge_dev *hdev = vport->back;
37 enum hclge_comm_cmd_status status;
38 struct hclge_desc desc;
39 u16 resp;
40
41 resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
42
43 if (resp_msg->len > HCLGE_MBX_MAX_RESP_DATA_SIZE) {
44 dev_err(&hdev->pdev->dev,
45 "PF fail to gen resp to VF len %u exceeds max len %u\n",
46 resp_msg->len,
47 HCLGE_MBX_MAX_RESP_DATA_SIZE);
48 /* If resp_msg->len is too long, set the value to max length
49 * and return the msg to VF
50 */
51 resp_msg->len = HCLGE_MBX_MAX_RESP_DATA_SIZE;
52 }
53
54 hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false);
55
56 resp_pf_to_vf->dest_vfid = vf_to_pf_req->mbx_src_vfid;
57 resp_pf_to_vf->msg_len = vf_to_pf_req->msg_len;
58 resp_pf_to_vf->match_id = vf_to_pf_req->match_id;
59
60 resp_pf_to_vf->msg.code = cpu_to_le16(HCLGE_MBX_PF_VF_RESP);
61 resp_pf_to_vf->msg.vf_mbx_msg_code =
62 cpu_to_le16(vf_to_pf_req->msg.code);
63 resp_pf_to_vf->msg.vf_mbx_msg_subcode =
64 cpu_to_le16(vf_to_pf_req->msg.subcode);
65 resp = hclge_errno_to_resp(errno: resp_msg->status);
66 if (resp < SHRT_MAX) {
67 resp_pf_to_vf->msg.resp_status = cpu_to_le16(resp);
68 } else {
69 dev_warn(&hdev->pdev->dev,
70 "failed to send response to VF, response status %u is out-of-bound\n",
71 resp);
72 resp_pf_to_vf->msg.resp_status = cpu_to_le16(EIO);
73 }
74
75 if (resp_msg->len > 0)
76 memcpy(resp_pf_to_vf->msg.resp_data, resp_msg->data,
77 resp_msg->len);
78
79 trace_hclge_pf_mbx_send(hdev, req: resp_pf_to_vf);
80
81 status = hclge_cmd_send(hw: &hdev->hw, desc: &desc, num: 1);
82 if (status)
83 dev_err(&hdev->pdev->dev,
84 "failed to send response to VF, status: %d, vfid: %u, code: %u, subcode: %u.\n",
85 status, vf_to_pf_req->mbx_src_vfid,
86 vf_to_pf_req->msg.code, vf_to_pf_req->msg.subcode);
87
88 return status;
89}
90
91static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len,
92 u16 mbx_opcode, u8 dest_vfid)
93{
94 struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
95 struct hclge_dev *hdev = vport->back;
96 enum hclge_comm_cmd_status status;
97 struct hclge_desc desc;
98
99 if (msg_len > HCLGE_MBX_MAX_MSG_SIZE) {
100 dev_err(&hdev->pdev->dev,
101 "msg data length(=%u) exceeds maximum(=%u)\n",
102 msg_len, HCLGE_MBX_MAX_MSG_SIZE);
103 return -EMSGSIZE;
104 }
105
106 resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
107
108 hclge_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_PF_TO_VF, false);
109
110 resp_pf_to_vf->dest_vfid = dest_vfid;
111 resp_pf_to_vf->msg_len = msg_len;
112 resp_pf_to_vf->msg.code = cpu_to_le16(mbx_opcode);
113
114 memcpy(resp_pf_to_vf->msg.msg_data, msg, msg_len);
115
116 trace_hclge_pf_mbx_send(hdev, req: resp_pf_to_vf);
117
118 status = hclge_cmd_send(hw: &hdev->hw, desc: &desc, num: 1);
119 if (status)
120 dev_err(&hdev->pdev->dev,
121 "failed to send mailbox to VF, status: %d, vfid: %u, opcode: %u\n",
122 status, dest_vfid, mbx_opcode);
123
124 return status;
125}
126
127int hclge_inform_vf_reset(struct hclge_vport *vport, u16 reset_type)
128{
129 __le16 msg_data;
130 u8 dest_vfid;
131
132 dest_vfid = (u8)vport->vport_id;
133 msg_data = cpu_to_le16(reset_type);
134
135 /* send this requested info to VF */
136 return hclge_send_mbx_msg(vport, msg: (u8 *)&msg_data, msg_len: sizeof(msg_data),
137 mbx_opcode: HCLGE_MBX_ASSERTING_RESET, dest_vfid);
138}
139
140int hclge_inform_reset_assert_to_vf(struct hclge_vport *vport)
141{
142 struct hclge_dev *hdev = vport->back;
143 u16 reset_type;
144
145 BUILD_BUG_ON(HNAE3_MAX_RESET > U16_MAX);
146
147 if (hdev->reset_type == HNAE3_FUNC_RESET)
148 reset_type = HNAE3_VF_PF_FUNC_RESET;
149 else if (hdev->reset_type == HNAE3_FLR_RESET)
150 reset_type = HNAE3_VF_FULL_RESET;
151 else
152 reset_type = HNAE3_VF_FUNC_RESET;
153
154 return hclge_inform_vf_reset(vport, reset_type);
155}
156
157static void hclge_free_vector_ring_chain(struct hnae3_ring_chain_node *head)
158{
159 struct hnae3_ring_chain_node *chain_tmp, *chain;
160
161 chain = head->next;
162
163 while (chain) {
164 chain_tmp = chain->next;
165 kfree_sensitive(objp: chain);
166 chain = chain_tmp;
167 }
168}
169
170/* hclge_get_ring_chain_from_mbx: get ring type & tqp id & int_gl idx
171 * from mailbox message
172 * msg[0]: opcode
173 * msg[1]: <not relevant to this function>
174 * msg[2]: ring_num
175 * msg[3]: first ring type (TX|RX)
176 * msg[4]: first tqp id
177 * msg[5]: first int_gl idx
178 * msg[6] ~ msg[14]: other ring type, tqp id and int_gl idx
179 */
180static int hclge_get_ring_chain_from_mbx(
181 struct hclge_mbx_vf_to_pf_cmd *req,
182 struct hnae3_ring_chain_node *ring_chain,
183 struct hclge_vport *vport)
184{
185 struct hnae3_ring_chain_node *cur_chain, *new_chain;
186 struct hclge_dev *hdev = vport->back;
187 int ring_num;
188 int i;
189
190 ring_num = req->msg.ring_num;
191
192 if (ring_num > HCLGE_MBX_MAX_RING_CHAIN_PARAM_NUM)
193 return -EINVAL;
194
195 for (i = 0; i < ring_num; i++) {
196 if (req->msg.param[i].tqp_index >= vport->nic.kinfo.rss_size) {
197 dev_err(&hdev->pdev->dev, "tqp index(%u) is out of range(0-%u)\n",
198 req->msg.param[i].tqp_index,
199 vport->nic.kinfo.rss_size - 1U);
200 return -EINVAL;
201 }
202 }
203
204 hnae3_set_bit(ring_chain->flag, HNAE3_RING_TYPE_B,
205 req->msg.param[0].ring_type);
206 ring_chain->tqp_index =
207 hclge_get_queue_id(queue: vport->nic.kinfo.tqp
208 [req->msg.param[0].tqp_index]);
209 hnae3_set_field(ring_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
210 HNAE3_RING_GL_IDX_S, req->msg.param[0].int_gl_index);
211
212 cur_chain = ring_chain;
213
214 for (i = 1; i < ring_num; i++) {
215 new_chain = kzalloc(size: sizeof(*new_chain), GFP_KERNEL);
216 if (!new_chain)
217 goto err;
218
219 hnae3_set_bit(new_chain->flag, HNAE3_RING_TYPE_B,
220 req->msg.param[i].ring_type);
221
222 new_chain->tqp_index =
223 hclge_get_queue_id(queue: vport->nic.kinfo.tqp
224 [req->msg.param[i].tqp_index]);
225
226 hnae3_set_field(new_chain->int_gl_idx, HNAE3_RING_GL_IDX_M,
227 HNAE3_RING_GL_IDX_S,
228 req->msg.param[i].int_gl_index);
229
230 cur_chain->next = new_chain;
231 cur_chain = new_chain;
232 }
233
234 return 0;
235err:
236 hclge_free_vector_ring_chain(head: ring_chain);
237 return -ENOMEM;
238}
239
240static int hclge_map_unmap_ring_to_vf_vector(struct hclge_vport *vport, bool en,
241 struct hclge_mbx_vf_to_pf_cmd *req)
242{
243 struct hnae3_ring_chain_node ring_chain;
244 int vector_id = req->msg.vector_id;
245 int ret;
246
247 memset(&ring_chain, 0, sizeof(ring_chain));
248 ret = hclge_get_ring_chain_from_mbx(req, ring_chain: &ring_chain, vport);
249 if (ret)
250 return ret;
251
252 ret = hclge_bind_ring_with_vector(vport, vector_id, en, ring_chain: &ring_chain);
253
254 hclge_free_vector_ring_chain(head: &ring_chain);
255
256 return ret;
257}
258
259static int hclge_query_ring_vector_map(struct hclge_vport *vport,
260 struct hnae3_ring_chain_node *ring_chain,
261 struct hclge_desc *desc)
262{
263 struct hclge_ctrl_vector_chain_cmd *req =
264 (struct hclge_ctrl_vector_chain_cmd *)desc->data;
265 struct hclge_dev *hdev = vport->back;
266 u16 tqp_type_and_id;
267 int status;
268
269 hclge_cmd_setup_basic_desc(desc, HCLGE_OPC_ADD_RING_TO_VECTOR, true);
270
271 tqp_type_and_id = le16_to_cpu(req->tqp_type_and_id[0]);
272 hnae3_set_field(tqp_type_and_id, HCLGE_INT_TYPE_M, HCLGE_INT_TYPE_S,
273 hnae3_get_bit(ring_chain->flag, HNAE3_RING_TYPE_B));
274 hnae3_set_field(tqp_type_and_id, HCLGE_TQP_ID_M, HCLGE_TQP_ID_S,
275 ring_chain->tqp_index);
276 req->tqp_type_and_id[0] = cpu_to_le16(tqp_type_and_id);
277 req->vfid = vport->vport_id;
278
279 status = hclge_cmd_send(hw: &hdev->hw, desc, num: 1);
280 if (status)
281 dev_err(&hdev->pdev->dev,
282 "Get VF ring vector map info fail, status is %d.\n",
283 status);
284
285 return status;
286}
287
288static int hclge_get_vf_ring_vector_map(struct hclge_vport *vport,
289 struct hclge_mbx_vf_to_pf_cmd *req,
290 struct hclge_respond_to_vf_msg *resp)
291{
292#define HCLGE_LIMIT_RING_NUM 1
293#define HCLGE_RING_TYPE_OFFSET 0
294#define HCLGE_TQP_INDEX_OFFSET 1
295#define HCLGE_INT_GL_INDEX_OFFSET 2
296#define HCLGE_VECTOR_ID_OFFSET 3
297#define HCLGE_RING_VECTOR_MAP_INFO_LEN 4
298 struct hnae3_ring_chain_node ring_chain;
299 struct hclge_desc desc;
300 struct hclge_ctrl_vector_chain_cmd *data =
301 (struct hclge_ctrl_vector_chain_cmd *)desc.data;
302 u16 tqp_type_and_id;
303 u8 int_gl_index;
304 int ret;
305
306 req->msg.ring_num = HCLGE_LIMIT_RING_NUM;
307
308 memset(&ring_chain, 0, sizeof(ring_chain));
309 ret = hclge_get_ring_chain_from_mbx(req, ring_chain: &ring_chain, vport);
310 if (ret)
311 return ret;
312
313 ret = hclge_query_ring_vector_map(vport, ring_chain: &ring_chain, desc: &desc);
314 if (ret) {
315 hclge_free_vector_ring_chain(head: &ring_chain);
316 return ret;
317 }
318
319 tqp_type_and_id = le16_to_cpu(data->tqp_type_and_id[0]);
320 int_gl_index = hnae3_get_field(tqp_type_and_id,
321 HCLGE_INT_GL_IDX_M, HCLGE_INT_GL_IDX_S);
322
323 resp->data[HCLGE_RING_TYPE_OFFSET] = req->msg.param[0].ring_type;
324 resp->data[HCLGE_TQP_INDEX_OFFSET] = req->msg.param[0].tqp_index;
325 resp->data[HCLGE_INT_GL_INDEX_OFFSET] = int_gl_index;
326 resp->data[HCLGE_VECTOR_ID_OFFSET] = data->int_vector_id_l;
327 resp->len = HCLGE_RING_VECTOR_MAP_INFO_LEN;
328
329 hclge_free_vector_ring_chain(head: &ring_chain);
330
331 return ret;
332}
333
334static void hclge_set_vf_promisc_mode(struct hclge_vport *vport,
335 struct hclge_mbx_vf_to_pf_cmd *req)
336{
337 struct hnae3_handle *handle = &vport->nic;
338 struct hclge_dev *hdev = vport->back;
339
340 vport->vf_info.request_uc_en = req->msg.en_uc;
341 vport->vf_info.request_mc_en = req->msg.en_mc;
342 vport->vf_info.request_bc_en = req->msg.en_bc;
343
344 if (req->msg.en_limit_promisc)
345 set_bit(nr: HNAE3_PFLAG_LIMIT_PROMISC, addr: &handle->priv_flags);
346 else
347 clear_bit(nr: HNAE3_PFLAG_LIMIT_PROMISC,
348 addr: &handle->priv_flags);
349
350 set_bit(nr: HCLGE_VPORT_STATE_PROMISC_CHANGE, addr: &vport->state);
351 hclge_task_schedule(hdev, delay_time: 0);
352}
353
354static int hclge_set_vf_uc_mac_addr(struct hclge_vport *vport,
355 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
356{
357#define HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET 6
358
359 const u8 *mac_addr = (const u8 *)(mbx_req->msg.data);
360 struct hclge_dev *hdev = vport->back;
361 int status;
362
363 if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_MODIFY) {
364 const u8 *old_addr = (const u8 *)
365 (&mbx_req->msg.data[HCLGE_MBX_VF_OLD_MAC_ADDR_OFFSET]);
366
367 /* If VF MAC has been configured by the host then it
368 * cannot be overridden by the MAC specified by the VM.
369 */
370 if (!is_zero_ether_addr(addr: vport->vf_info.mac) &&
371 !ether_addr_equal(addr1: mac_addr, addr2: vport->vf_info.mac))
372 return -EPERM;
373
374 if (!is_valid_ether_addr(addr: mac_addr))
375 return -EINVAL;
376
377 spin_lock_bh(lock: &vport->mac_list_lock);
378 status = hclge_update_mac_node_for_dev_addr(vport, old_addr,
379 new_addr: mac_addr);
380 spin_unlock_bh(lock: &vport->mac_list_lock);
381 hclge_task_schedule(hdev, delay_time: 0);
382 } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_ADD) {
383 status = hclge_update_mac_list(vport, state: HCLGE_MAC_TO_ADD,
384 mac_type: HCLGE_MAC_ADDR_UC, addr: mac_addr);
385 } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_UC_REMOVE) {
386 status = hclge_update_mac_list(vport, state: HCLGE_MAC_TO_DEL,
387 mac_type: HCLGE_MAC_ADDR_UC, addr: mac_addr);
388 } else {
389 dev_err(&hdev->pdev->dev,
390 "failed to set unicast mac addr, unknown subcode %u\n",
391 mbx_req->msg.subcode);
392 return -EIO;
393 }
394
395 return status;
396}
397
398static int hclge_set_vf_mc_mac_addr(struct hclge_vport *vport,
399 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
400{
401 const u8 *mac_addr = (const u8 *)(mbx_req->msg.data);
402 struct hclge_dev *hdev = vport->back;
403
404 if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_ADD) {
405 hclge_update_mac_list(vport, state: HCLGE_MAC_TO_ADD,
406 mac_type: HCLGE_MAC_ADDR_MC, addr: mac_addr);
407 } else if (mbx_req->msg.subcode == HCLGE_MBX_MAC_VLAN_MC_REMOVE) {
408 hclge_update_mac_list(vport, state: HCLGE_MAC_TO_DEL,
409 mac_type: HCLGE_MAC_ADDR_MC, addr: mac_addr);
410 } else {
411 dev_err(&hdev->pdev->dev,
412 "failed to set mcast mac addr, unknown subcode %u\n",
413 mbx_req->msg.subcode);
414 return -EIO;
415 }
416
417 return 0;
418}
419
420int hclge_push_vf_port_base_vlan_info(struct hclge_vport *vport, u8 vfid,
421 u16 state,
422 struct hclge_vlan_info *vlan_info)
423{
424 struct hclge_mbx_port_base_vlan base_vlan;
425
426 base_vlan.state = cpu_to_le16(state);
427 base_vlan.vlan_proto = cpu_to_le16(vlan_info->vlan_proto);
428 base_vlan.qos = cpu_to_le16(vlan_info->qos);
429 base_vlan.vlan_tag = cpu_to_le16(vlan_info->vlan_tag);
430
431 return hclge_send_mbx_msg(vport, msg: (u8 *)&base_vlan, msg_len: sizeof(base_vlan),
432 mbx_opcode: HCLGE_MBX_PUSH_VLAN_INFO, dest_vfid: vfid);
433}
434
435static int hclge_set_vf_vlan_cfg(struct hclge_vport *vport,
436 struct hclge_mbx_vf_to_pf_cmd *mbx_req,
437 struct hclge_respond_to_vf_msg *resp_msg)
438{
439#define HCLGE_MBX_VLAN_STATE_OFFSET 0
440#define HCLGE_MBX_VLAN_INFO_OFFSET 2
441
442 struct hnae3_handle *handle = &vport->nic;
443 struct hclge_dev *hdev = vport->back;
444 struct hclge_vf_vlan_cfg *msg_cmd;
445 __be16 proto;
446 u16 vlan_id;
447
448 msg_cmd = (struct hclge_vf_vlan_cfg *)&mbx_req->msg;
449 switch (msg_cmd->subcode) {
450 case HCLGE_MBX_VLAN_FILTER:
451 proto = cpu_to_be16(le16_to_cpu(msg_cmd->proto));
452 vlan_id = le16_to_cpu(msg_cmd->vlan);
453 return hclge_set_vlan_filter(handle, proto, vlan_id,
454 is_kill: msg_cmd->is_kill);
455 case HCLGE_MBX_VLAN_RX_OFF_CFG:
456 return hclge_en_hw_strip_rxvtag(handle, enable: msg_cmd->enable);
457 case HCLGE_MBX_GET_PORT_BASE_VLAN_STATE:
458 /* vf does not need to know about the port based VLAN state
459 * on device HNAE3_DEVICE_VERSION_V3. So always return disable
460 * on device HNAE3_DEVICE_VERSION_V3 if vf queries the port
461 * based VLAN state.
462 */
463 resp_msg->data[0] =
464 hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3 ?
465 HNAE3_PORT_BASE_VLAN_DISABLE :
466 vport->port_base_vlan_cfg.state;
467 resp_msg->len = sizeof(u8);
468 return 0;
469 case HCLGE_MBX_ENABLE_VLAN_FILTER:
470 return hclge_enable_vport_vlan_filter(vport, request_en: msg_cmd->enable);
471 default:
472 return 0;
473 }
474}
475
476static int hclge_set_vf_alive(struct hclge_vport *vport,
477 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
478{
479 bool alive = !!mbx_req->msg.data[0];
480 int ret = 0;
481
482 if (alive)
483 ret = hclge_vport_start(vport);
484 else
485 hclge_vport_stop(vport);
486
487 return ret;
488}
489
490static void hclge_get_basic_info(struct hclge_vport *vport,
491 struct hclge_respond_to_vf_msg *resp_msg)
492{
493 struct hnae3_knic_private_info *kinfo = &vport->nic.kinfo;
494 struct hnae3_ae_dev *ae_dev = vport->back->ae_dev;
495 struct hclge_basic_info *basic_info;
496 unsigned int i;
497 u32 pf_caps;
498
499 basic_info = (struct hclge_basic_info *)resp_msg->data;
500 for (i = 0; i < kinfo->tc_info.num_tc; i++)
501 basic_info->hw_tc_map |= BIT(i);
502
503 pf_caps = le32_to_cpu(basic_info->pf_caps);
504 if (test_bit(HNAE3_DEV_SUPPORT_VLAN_FLTR_MDF_B, ae_dev->caps))
505 hnae3_set_bit(pf_caps, HNAE3_PF_SUPPORT_VLAN_FLTR_MDF_B, 1);
506
507 basic_info->pf_caps = cpu_to_le32(pf_caps);
508 resp_msg->len = HCLGE_MBX_MAX_RESP_DATA_SIZE;
509}
510
511static void hclge_get_vf_queue_info(struct hclge_vport *vport,
512 struct hclge_respond_to_vf_msg *resp_msg)
513{
514#define HCLGE_TQPS_RSS_INFO_LEN 6
515
516 struct hclge_mbx_vf_queue_info *queue_info;
517 struct hclge_dev *hdev = vport->back;
518
519 /* get the queue related info */
520 queue_info = (struct hclge_mbx_vf_queue_info *)resp_msg->data;
521 queue_info->num_tqps = cpu_to_le16(vport->alloc_tqps);
522 queue_info->rss_size = cpu_to_le16(vport->nic.kinfo.rss_size);
523 queue_info->rx_buf_len = cpu_to_le16(hdev->rx_buf_len);
524 resp_msg->len = HCLGE_TQPS_RSS_INFO_LEN;
525}
526
527static void hclge_get_vf_mac_addr(struct hclge_vport *vport,
528 struct hclge_respond_to_vf_msg *resp_msg)
529{
530 ether_addr_copy(dst: resp_msg->data, src: vport->vf_info.mac);
531 resp_msg->len = ETH_ALEN;
532}
533
534static void hclge_get_vf_queue_depth(struct hclge_vport *vport,
535 struct hclge_respond_to_vf_msg *resp_msg)
536{
537#define HCLGE_TQPS_DEPTH_INFO_LEN 4
538
539 struct hclge_mbx_vf_queue_depth *queue_depth;
540 struct hclge_dev *hdev = vport->back;
541
542 /* get the queue depth info */
543 queue_depth = (struct hclge_mbx_vf_queue_depth *)resp_msg->data;
544 queue_depth->num_tx_desc = cpu_to_le16(hdev->num_tx_desc);
545 queue_depth->num_rx_desc = cpu_to_le16(hdev->num_rx_desc);
546
547 resp_msg->len = HCLGE_TQPS_DEPTH_INFO_LEN;
548}
549
550static void hclge_get_vf_media_type(struct hclge_vport *vport,
551 struct hclge_respond_to_vf_msg *resp_msg)
552{
553#define HCLGE_VF_MEDIA_TYPE_OFFSET 0
554#define HCLGE_VF_MODULE_TYPE_OFFSET 1
555#define HCLGE_VF_MEDIA_TYPE_LENGTH 2
556
557 struct hclge_dev *hdev = vport->back;
558
559 resp_msg->data[HCLGE_VF_MEDIA_TYPE_OFFSET] =
560 hdev->hw.mac.media_type;
561 resp_msg->data[HCLGE_VF_MODULE_TYPE_OFFSET] =
562 hdev->hw.mac.module_type;
563 resp_msg->len = HCLGE_VF_MEDIA_TYPE_LENGTH;
564}
565
566int hclge_push_vf_link_status(struct hclge_vport *vport)
567{
568#define HCLGE_VF_LINK_STATE_UP 1U
569#define HCLGE_VF_LINK_STATE_DOWN 0U
570
571 struct hclge_mbx_link_status link_info;
572 struct hclge_dev *hdev = vport->back;
573 u16 link_status;
574
575 /* mac.link can only be 0 or 1 */
576 switch (vport->vf_info.link_state) {
577 case IFLA_VF_LINK_STATE_ENABLE:
578 link_status = HCLGE_VF_LINK_STATE_UP;
579 break;
580 case IFLA_VF_LINK_STATE_DISABLE:
581 link_status = HCLGE_VF_LINK_STATE_DOWN;
582 break;
583 case IFLA_VF_LINK_STATE_AUTO:
584 default:
585 link_status = (u16)hdev->hw.mac.link;
586 break;
587 }
588
589 link_info.link_status = cpu_to_le16(link_status);
590 link_info.speed = cpu_to_le32(hdev->hw.mac.speed);
591 link_info.duplex = cpu_to_le16(hdev->hw.mac.duplex);
592 link_info.flag = HCLGE_MBX_PUSH_LINK_STATUS_EN;
593
594 /* send this requested info to VF */
595 return hclge_send_mbx_msg(vport, msg: (u8 *)&link_info, msg_len: sizeof(link_info),
596 mbx_opcode: HCLGE_MBX_LINK_STAT_CHANGE, dest_vfid: vport->vport_id);
597}
598
599static void hclge_get_link_mode(struct hclge_vport *vport,
600 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
601{
602#define HCLGE_SUPPORTED 1
603 struct hclge_mbx_link_mode link_mode;
604 struct hclge_dev *hdev = vport->back;
605 unsigned long advertising;
606 unsigned long supported;
607 unsigned long send_data;
608 u8 dest_vfid;
609
610 advertising = hdev->hw.mac.advertising[0];
611 supported = hdev->hw.mac.supported[0];
612 dest_vfid = mbx_req->mbx_src_vfid;
613 send_data = mbx_req->msg.data[0] == HCLGE_SUPPORTED ? supported :
614 advertising;
615 link_mode.idx = cpu_to_le16((u16)mbx_req->msg.data[0]);
616 link_mode.link_mode = cpu_to_le64(send_data);
617
618 hclge_send_mbx_msg(vport, msg: (u8 *)&link_mode, msg_len: sizeof(link_mode),
619 mbx_opcode: HCLGE_MBX_LINK_STAT_MODE, dest_vfid);
620}
621
622static int hclge_mbx_reset_vf_queue(struct hclge_vport *vport,
623 struct hclge_mbx_vf_to_pf_cmd *mbx_req,
624 struct hclge_respond_to_vf_msg *resp_msg)
625{
626#define HCLGE_RESET_ALL_QUEUE_DONE 1U
627 struct hnae3_handle *handle = &vport->nic;
628 struct hclge_dev *hdev = vport->back;
629 u16 queue_id;
630 int ret;
631
632 queue_id = le16_to_cpu(*(__le16 *)mbx_req->msg.data);
633 resp_msg->data[0] = HCLGE_RESET_ALL_QUEUE_DONE;
634 resp_msg->len = sizeof(u8);
635
636 /* pf will reset vf's all queues at a time. So it is unnecessary
637 * to reset queues if queue_id > 0, just return success.
638 */
639 if (queue_id > 0)
640 return 0;
641
642 ret = hclge_reset_tqp(handle);
643 if (ret)
644 dev_err(&hdev->pdev->dev, "failed to reset vf %u queue, ret = %d\n",
645 vport->vport_id - HCLGE_VF_VPORT_START_NUM, ret);
646
647 return ret;
648}
649
650static int hclge_reset_vf(struct hclge_vport *vport)
651{
652 struct hclge_dev *hdev = vport->back;
653
654 dev_warn(&hdev->pdev->dev, "PF received VF reset request from VF %u!",
655 vport->vport_id - HCLGE_VF_VPORT_START_NUM);
656
657 return hclge_func_reset_cmd(hdev, func_id: vport->vport_id);
658}
659
660static void hclge_notify_vf_config(struct hclge_vport *vport)
661{
662 struct hclge_dev *hdev = vport->back;
663 struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev: hdev->pdev);
664 struct hclge_port_base_vlan_config *vlan_cfg;
665 int ret;
666
667 hclge_push_vf_link_status(vport);
668 if (test_bit(HCLGE_VPORT_NEED_NOTIFY_RESET, &vport->need_notify)) {
669 ret = hclge_inform_vf_reset(vport, reset_type: HNAE3_VF_PF_FUNC_RESET);
670 if (ret) {
671 dev_err(&hdev->pdev->dev,
672 "failed to inform VF %u reset!",
673 vport->vport_id - HCLGE_VF_VPORT_START_NUM);
674 return;
675 }
676 vport->need_notify = 0;
677 return;
678 }
679
680 if (ae_dev->dev_version < HNAE3_DEVICE_VERSION_V3 &&
681 test_bit(HCLGE_VPORT_NEED_NOTIFY_VF_VLAN, &vport->need_notify)) {
682 vlan_cfg = &vport->port_base_vlan_cfg;
683 ret = hclge_push_vf_port_base_vlan_info(vport: &hdev->vport[0],
684 vfid: vport->vport_id,
685 state: vlan_cfg->state,
686 vlan_info: &vlan_cfg->vlan_info);
687 if (ret) {
688 dev_err(&hdev->pdev->dev,
689 "failed to inform VF %u port base vlan!",
690 vport->vport_id - HCLGE_VF_VPORT_START_NUM);
691 return;
692 }
693 clear_bit(nr: HCLGE_VPORT_NEED_NOTIFY_VF_VLAN, addr: &vport->need_notify);
694 }
695}
696
697static void hclge_vf_keep_alive(struct hclge_vport *vport)
698{
699 struct hclge_dev *hdev = vport->back;
700
701 vport->last_active_jiffies = jiffies;
702
703 if (test_bit(HCLGE_VPORT_STATE_INITED, &vport->state) &&
704 !test_bit(HCLGE_VPORT_STATE_ALIVE, &vport->state)) {
705 set_bit(nr: HCLGE_VPORT_STATE_ALIVE, addr: &vport->state);
706 dev_info(&hdev->pdev->dev, "VF %u is alive!",
707 vport->vport_id - HCLGE_VF_VPORT_START_NUM);
708 hclge_notify_vf_config(vport);
709 }
710}
711
712static int hclge_set_vf_mtu(struct hclge_vport *vport,
713 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
714{
715 struct hclge_mbx_mtu_info *mtu_info;
716 u32 mtu;
717
718 mtu_info = (struct hclge_mbx_mtu_info *)mbx_req->msg.data;
719 mtu = le32_to_cpu(mtu_info->mtu);
720
721 return hclge_set_vport_mtu(vport, new_mtu: mtu);
722}
723
724static int hclge_get_queue_id_in_pf(struct hclge_vport *vport,
725 struct hclge_mbx_vf_to_pf_cmd *mbx_req,
726 struct hclge_respond_to_vf_msg *resp_msg)
727{
728 struct hnae3_handle *handle = &vport->nic;
729 struct hclge_dev *hdev = vport->back;
730 u16 queue_id, qid_in_pf;
731
732 queue_id = le16_to_cpu(*(__le16 *)mbx_req->msg.data);
733 if (queue_id >= handle->kinfo.num_tqps) {
734 dev_err(&hdev->pdev->dev, "Invalid queue id(%u) from VF %u\n",
735 queue_id, mbx_req->mbx_src_vfid);
736 return -EINVAL;
737 }
738
739 qid_in_pf = hclge_covert_handle_qid_global(handle: &vport->nic, queue_id);
740 *(__le16 *)resp_msg->data = cpu_to_le16(qid_in_pf);
741 resp_msg->len = sizeof(qid_in_pf);
742 return 0;
743}
744
745static int hclge_get_rss_key(struct hclge_vport *vport,
746 struct hclge_mbx_vf_to_pf_cmd *mbx_req,
747 struct hclge_respond_to_vf_msg *resp_msg)
748{
749#define HCLGE_RSS_MBX_RESP_LEN 8
750 struct hclge_dev *hdev = vport->back;
751 struct hclge_comm_rss_cfg *rss_cfg;
752 u8 index;
753
754 index = mbx_req->msg.data[0];
755 rss_cfg = &hdev->rss_cfg;
756
757 /* Check the query index of rss_hash_key from VF, make sure no
758 * more than the size of rss_hash_key.
759 */
760 if (((index + 1) * HCLGE_RSS_MBX_RESP_LEN) >
761 sizeof(rss_cfg->rss_hash_key)) {
762 dev_warn(&hdev->pdev->dev,
763 "failed to get the rss hash key, the index(%u) invalid !\n",
764 index);
765 return -EINVAL;
766 }
767
768 memcpy(resp_msg->data,
769 &rss_cfg->rss_hash_key[index * HCLGE_RSS_MBX_RESP_LEN],
770 HCLGE_RSS_MBX_RESP_LEN);
771 resp_msg->len = HCLGE_RSS_MBX_RESP_LEN;
772 return 0;
773}
774
775static void hclge_link_fail_parse(struct hclge_dev *hdev, u8 link_fail_code)
776{
777 switch (link_fail_code) {
778 case HCLGE_LF_REF_CLOCK_LOST:
779 dev_warn(&hdev->pdev->dev, "Reference clock lost!\n");
780 break;
781 case HCLGE_LF_XSFP_TX_DISABLE:
782 dev_warn(&hdev->pdev->dev, "SFP tx is disabled!\n");
783 break;
784 case HCLGE_LF_XSFP_ABSENT:
785 dev_warn(&hdev->pdev->dev, "SFP is absent!\n");
786 break;
787 default:
788 break;
789 }
790}
791
792static void hclge_handle_link_change_event(struct hclge_dev *hdev,
793 struct hclge_mbx_vf_to_pf_cmd *req)
794{
795 hclge_task_schedule(hdev, delay_time: 0);
796
797 if (!req->msg.subcode)
798 hclge_link_fail_parse(hdev, link_fail_code: req->msg.data[0]);
799}
800
801static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
802{
803 u32 tail = hclge_read_dev(hw, HCLGE_COMM_NIC_CRQ_TAIL_REG);
804
805 return tail == hw->hw.cmq.crq.next_to_use;
806}
807
808static void hclge_handle_ncsi_error(struct hclge_dev *hdev)
809{
810 struct hnae3_ae_dev *ae_dev = hdev->ae_dev;
811
812 ae_dev->ops->set_default_reset_request(ae_dev, HNAE3_GLOBAL_RESET);
813 dev_warn(&hdev->pdev->dev, "requesting reset due to NCSI error\n");
814 ae_dev->ops->reset_event(hdev->pdev, NULL);
815}
816
817static void hclge_handle_vf_tbl(struct hclge_vport *vport,
818 struct hclge_mbx_vf_to_pf_cmd *mbx_req)
819{
820 struct hclge_dev *hdev = vport->back;
821 struct hclge_vf_vlan_cfg *msg_cmd;
822
823 msg_cmd = (struct hclge_vf_vlan_cfg *)&mbx_req->msg;
824 if (msg_cmd->subcode == HCLGE_MBX_VPORT_LIST_CLEAR) {
825 hclge_rm_vport_all_mac_table(vport, is_del_list: true, mac_type: HCLGE_MAC_ADDR_UC);
826 hclge_rm_vport_all_mac_table(vport, is_del_list: true, mac_type: HCLGE_MAC_ADDR_MC);
827 hclge_rm_vport_all_vlan_table(vport, is_del_list: true);
828 } else {
829 dev_warn(&hdev->pdev->dev, "Invalid cmd(%u)\n",
830 msg_cmd->subcode);
831 }
832}
833
834static int
835hclge_mbx_map_ring_to_vector_handler(struct hclge_mbx_ops_param *param)
836{
837 return hclge_map_unmap_ring_to_vf_vector(vport: param->vport, en: true,
838 req: param->req);
839}
840
841static int
842hclge_mbx_unmap_ring_to_vector_handler(struct hclge_mbx_ops_param *param)
843{
844 return hclge_map_unmap_ring_to_vf_vector(vport: param->vport, en: false,
845 req: param->req);
846}
847
848static int
849hclge_mbx_get_ring_vector_map_handler(struct hclge_mbx_ops_param *param)
850{
851 int ret;
852
853 ret = hclge_get_vf_ring_vector_map(vport: param->vport, req: param->req,
854 resp: param->resp_msg);
855 if (ret)
856 dev_err(&param->vport->back->pdev->dev,
857 "PF fail(%d) to get VF ring vector map\n",
858 ret);
859 return ret;
860}
861
862static int hclge_mbx_set_promisc_mode_handler(struct hclge_mbx_ops_param *param)
863{
864 hclge_set_vf_promisc_mode(vport: param->vport, req: param->req);
865 return 0;
866}
867
868static int hclge_mbx_set_unicast_handler(struct hclge_mbx_ops_param *param)
869{
870 int ret;
871
872 ret = hclge_set_vf_uc_mac_addr(vport: param->vport, mbx_req: param->req);
873 if (ret)
874 dev_err(&param->vport->back->pdev->dev,
875 "PF fail(%d) to set VF UC MAC Addr\n",
876 ret);
877 return ret;
878}
879
880static int hclge_mbx_set_multicast_handler(struct hclge_mbx_ops_param *param)
881{
882 int ret;
883
884 ret = hclge_set_vf_mc_mac_addr(vport: param->vport, mbx_req: param->req);
885 if (ret)
886 dev_err(&param->vport->back->pdev->dev,
887 "PF fail(%d) to set VF MC MAC Addr\n",
888 ret);
889 return ret;
890}
891
892static int hclge_mbx_set_vlan_handler(struct hclge_mbx_ops_param *param)
893{
894 int ret;
895
896 ret = hclge_set_vf_vlan_cfg(vport: param->vport, mbx_req: param->req, resp_msg: param->resp_msg);
897 if (ret)
898 dev_err(&param->vport->back->pdev->dev,
899 "PF failed(%d) to config VF's VLAN\n",
900 ret);
901 return ret;
902}
903
904static int hclge_mbx_set_alive_handler(struct hclge_mbx_ops_param *param)
905{
906 int ret;
907
908 ret = hclge_set_vf_alive(vport: param->vport, mbx_req: param->req);
909 if (ret)
910 dev_err(&param->vport->back->pdev->dev,
911 "PF failed(%d) to set VF's ALIVE\n",
912 ret);
913 return ret;
914}
915
916static int hclge_mbx_get_qinfo_handler(struct hclge_mbx_ops_param *param)
917{
918 hclge_get_vf_queue_info(vport: param->vport, resp_msg: param->resp_msg);
919 return 0;
920}
921
922static int hclge_mbx_get_qdepth_handler(struct hclge_mbx_ops_param *param)
923{
924 hclge_get_vf_queue_depth(vport: param->vport, resp_msg: param->resp_msg);
925 return 0;
926}
927
928static int hclge_mbx_get_basic_info_handler(struct hclge_mbx_ops_param *param)
929{
930 hclge_get_basic_info(vport: param->vport, resp_msg: param->resp_msg);
931 return 0;
932}
933
934static int hclge_mbx_get_link_status_handler(struct hclge_mbx_ops_param *param)
935{
936 int ret;
937
938 ret = hclge_push_vf_link_status(vport: param->vport);
939 if (ret)
940 dev_err(&param->vport->back->pdev->dev,
941 "failed to inform link stat to VF, ret = %d\n",
942 ret);
943 return ret;
944}
945
946static int hclge_mbx_queue_reset_handler(struct hclge_mbx_ops_param *param)
947{
948 return hclge_mbx_reset_vf_queue(vport: param->vport, mbx_req: param->req,
949 resp_msg: param->resp_msg);
950}
951
952static int hclge_mbx_reset_handler(struct hclge_mbx_ops_param *param)
953{
954 return hclge_reset_vf(vport: param->vport);
955}
956
957static int hclge_mbx_keep_alive_handler(struct hclge_mbx_ops_param *param)
958{
959 hclge_vf_keep_alive(vport: param->vport);
960 return 0;
961}
962
963static int hclge_mbx_set_mtu_handler(struct hclge_mbx_ops_param *param)
964{
965 int ret;
966
967 ret = hclge_set_vf_mtu(vport: param->vport, mbx_req: param->req);
968 if (ret)
969 dev_err(&param->vport->back->pdev->dev,
970 "VF fail(%d) to set mtu\n", ret);
971 return ret;
972}
973
974static int hclge_mbx_get_qid_in_pf_handler(struct hclge_mbx_ops_param *param)
975{
976 return hclge_get_queue_id_in_pf(vport: param->vport, mbx_req: param->req,
977 resp_msg: param->resp_msg);
978}
979
980static int hclge_mbx_get_rss_key_handler(struct hclge_mbx_ops_param *param)
981{
982 return hclge_get_rss_key(vport: param->vport, mbx_req: param->req, resp_msg: param->resp_msg);
983}
984
985static int hclge_mbx_get_link_mode_handler(struct hclge_mbx_ops_param *param)
986{
987 hclge_get_link_mode(vport: param->vport, mbx_req: param->req);
988 return 0;
989}
990
991static int
992hclge_mbx_get_vf_flr_status_handler(struct hclge_mbx_ops_param *param)
993{
994 hclge_rm_vport_all_mac_table(vport: param->vport, is_del_list: false,
995 mac_type: HCLGE_MAC_ADDR_UC);
996 hclge_rm_vport_all_mac_table(vport: param->vport, is_del_list: false,
997 mac_type: HCLGE_MAC_ADDR_MC);
998 hclge_rm_vport_all_vlan_table(vport: param->vport, is_del_list: false);
999 return 0;
1000}
1001
1002static int hclge_mbx_vf_uninit_handler(struct hclge_mbx_ops_param *param)
1003{
1004 hclge_rm_vport_all_mac_table(vport: param->vport, is_del_list: true,
1005 mac_type: HCLGE_MAC_ADDR_UC);
1006 hclge_rm_vport_all_mac_table(vport: param->vport, is_del_list: true,
1007 mac_type: HCLGE_MAC_ADDR_MC);
1008 hclge_rm_vport_all_vlan_table(vport: param->vport, is_del_list: true);
1009 param->vport->mps = 0;
1010 return 0;
1011}
1012
1013static int hclge_mbx_get_media_type_handler(struct hclge_mbx_ops_param *param)
1014{
1015 hclge_get_vf_media_type(vport: param->vport, resp_msg: param->resp_msg);
1016 return 0;
1017}
1018
1019static int hclge_mbx_push_link_status_handler(struct hclge_mbx_ops_param *param)
1020{
1021 hclge_handle_link_change_event(hdev: param->vport->back, req: param->req);
1022 return 0;
1023}
1024
1025static int hclge_mbx_get_mac_addr_handler(struct hclge_mbx_ops_param *param)
1026{
1027 hclge_get_vf_mac_addr(vport: param->vport, resp_msg: param->resp_msg);
1028 return 0;
1029}
1030
1031static int hclge_mbx_ncsi_error_handler(struct hclge_mbx_ops_param *param)
1032{
1033 hclge_handle_ncsi_error(hdev: param->vport->back);
1034 return 0;
1035}
1036
1037static int hclge_mbx_handle_vf_tbl_handler(struct hclge_mbx_ops_param *param)
1038{
1039 hclge_handle_vf_tbl(vport: param->vport, mbx_req: param->req);
1040 return 0;
1041}
1042
1043static const hclge_mbx_ops_fn hclge_mbx_ops_list[HCLGE_MBX_OPCODE_MAX] = {
1044 [HCLGE_MBX_RESET] = hclge_mbx_reset_handler,
1045 [HCLGE_MBX_SET_UNICAST] = hclge_mbx_set_unicast_handler,
1046 [HCLGE_MBX_SET_MULTICAST] = hclge_mbx_set_multicast_handler,
1047 [HCLGE_MBX_SET_VLAN] = hclge_mbx_set_vlan_handler,
1048 [HCLGE_MBX_MAP_RING_TO_VECTOR] = hclge_mbx_map_ring_to_vector_handler,
1049 [HCLGE_MBX_UNMAP_RING_TO_VECTOR] = hclge_mbx_unmap_ring_to_vector_handler,
1050 [HCLGE_MBX_SET_PROMISC_MODE] = hclge_mbx_set_promisc_mode_handler,
1051 [HCLGE_MBX_GET_QINFO] = hclge_mbx_get_qinfo_handler,
1052 [HCLGE_MBX_GET_QDEPTH] = hclge_mbx_get_qdepth_handler,
1053 [HCLGE_MBX_GET_BASIC_INFO] = hclge_mbx_get_basic_info_handler,
1054 [HCLGE_MBX_GET_RSS_KEY] = hclge_mbx_get_rss_key_handler,
1055 [HCLGE_MBX_GET_MAC_ADDR] = hclge_mbx_get_mac_addr_handler,
1056 [HCLGE_MBX_GET_LINK_STATUS] = hclge_mbx_get_link_status_handler,
1057 [HCLGE_MBX_QUEUE_RESET] = hclge_mbx_queue_reset_handler,
1058 [HCLGE_MBX_KEEP_ALIVE] = hclge_mbx_keep_alive_handler,
1059 [HCLGE_MBX_SET_ALIVE] = hclge_mbx_set_alive_handler,
1060 [HCLGE_MBX_SET_MTU] = hclge_mbx_set_mtu_handler,
1061 [HCLGE_MBX_GET_QID_IN_PF] = hclge_mbx_get_qid_in_pf_handler,
1062 [HCLGE_MBX_GET_LINK_MODE] = hclge_mbx_get_link_mode_handler,
1063 [HCLGE_MBX_GET_MEDIA_TYPE] = hclge_mbx_get_media_type_handler,
1064 [HCLGE_MBX_VF_UNINIT] = hclge_mbx_vf_uninit_handler,
1065 [HCLGE_MBX_HANDLE_VF_TBL] = hclge_mbx_handle_vf_tbl_handler,
1066 [HCLGE_MBX_GET_RING_VECTOR_MAP] = hclge_mbx_get_ring_vector_map_handler,
1067 [HCLGE_MBX_GET_VF_FLR_STATUS] = hclge_mbx_get_vf_flr_status_handler,
1068 [HCLGE_MBX_PUSH_LINK_STATUS] = hclge_mbx_push_link_status_handler,
1069 [HCLGE_MBX_NCSI_ERROR] = hclge_mbx_ncsi_error_handler,
1070};
1071
1072static void hclge_mbx_request_handling(struct hclge_mbx_ops_param *param)
1073{
1074 hclge_mbx_ops_fn cmd_func = NULL;
1075 struct hclge_dev *hdev;
1076 int ret = 0;
1077
1078 hdev = param->vport->back;
1079 cmd_func = hclge_mbx_ops_list[param->req->msg.code];
1080 if (cmd_func)
1081 ret = cmd_func(param);
1082 else
1083 dev_err(&hdev->pdev->dev,
1084 "un-supported mailbox message, code = %u\n",
1085 param->req->msg.code);
1086
1087 /* PF driver should not reply IMP */
1088 if (hnae3_get_bit(param->req->mbx_need_resp, HCLGE_MBX_NEED_RESP_B) &&
1089 param->req->msg.code < HCLGE_MBX_GET_VF_FLR_STATUS) {
1090 param->resp_msg->status = ret;
1091 if (time_is_before_jiffies(hdev->last_mbx_scheduled +
1092 HCLGE_MBX_SCHED_TIMEOUT))
1093 dev_warn(&hdev->pdev->dev,
1094 "resp vport%u mbx(%u,%u) late\n",
1095 param->req->mbx_src_vfid,
1096 param->req->msg.code,
1097 param->req->msg.subcode);
1098
1099 hclge_gen_resp_to_vf(vport: param->vport, vf_to_pf_req: param->req, resp_msg: param->resp_msg);
1100 }
1101}
1102
1103void hclge_mbx_handler(struct hclge_dev *hdev)
1104{
1105 struct hclge_comm_cmq_ring *crq = &hdev->hw.hw.cmq.crq;
1106 struct hclge_respond_to_vf_msg resp_msg;
1107 struct hclge_mbx_vf_to_pf_cmd *req;
1108 struct hclge_mbx_ops_param param;
1109 struct hclge_desc *desc;
1110 unsigned int flag;
1111
1112 param.resp_msg = &resp_msg;
1113 /* handle all the mailbox requests in the queue */
1114 while (!hclge_cmd_crq_empty(hw: &hdev->hw)) {
1115 if (test_bit(HCLGE_COMM_STATE_CMD_DISABLE,
1116 &hdev->hw.hw.comm_state)) {
1117 dev_warn(&hdev->pdev->dev,
1118 "command queue needs re-initializing\n");
1119 return;
1120 }
1121
1122 desc = &crq->desc[crq->next_to_use];
1123 req = (struct hclge_mbx_vf_to_pf_cmd *)desc->data;
1124
1125 flag = le16_to_cpu(crq->desc[crq->next_to_use].flag);
1126 if (unlikely(!hnae3_get_bit(flag, HCLGE_CMDQ_RX_OUTVLD_B) ||
1127 req->mbx_src_vfid > hdev->num_req_vfs)) {
1128 dev_warn(&hdev->pdev->dev,
1129 "dropped invalid mailbox message, code = %u, vfid = %u\n",
1130 req->msg.code, req->mbx_src_vfid);
1131
1132 /* dropping/not processing this invalid message */
1133 crq->desc[crq->next_to_use].flag = 0;
1134 hclge_mbx_ring_ptr_move_crq(crq);
1135 continue;
1136 }
1137
1138 trace_hclge_pf_mbx_get(hdev, req);
1139
1140 /* clear the resp_msg before processing every mailbox message */
1141 memset(&resp_msg, 0, sizeof(resp_msg));
1142 param.vport = &hdev->vport[req->mbx_src_vfid];
1143 param.req = req;
1144 hclge_mbx_request_handling(param: &param);
1145
1146 crq->desc[crq->next_to_use].flag = 0;
1147 hclge_mbx_ring_ptr_move_crq(crq);
1148 }
1149
1150 /* Write back CMDQ_RQ header pointer, M7 need this pointer */
1151 hclge_write_dev(&hdev->hw, HCLGE_COMM_NIC_CRQ_HEAD_REG,
1152 crq->next_to_use);
1153}
1154

source code of linux/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c