9b08a9d9e15130f0518b1f7608bbaa36e6eb15b0
[sfrench/cifs-2.6.git] / drivers / net / ethernet / qlogic / qed / qed_sriov.c
1 /* QLogic qed NIC Driver
2  * Copyright (c) 2015-2017  QLogic Corporation
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and /or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32
33 #include <linux/etherdevice.h>
34 #include <linux/crc32.h>
35 #include <linux/vmalloc.h>
36 #include <linux/qed/qed_iov_if.h>
37 #include "qed_cxt.h"
38 #include "qed_hsi.h"
39 #include "qed_hw.h"
40 #include "qed_init_ops.h"
41 #include "qed_int.h"
42 #include "qed_mcp.h"
43 #include "qed_reg_addr.h"
44 #include "qed_sp.h"
45 #include "qed_sriov.h"
46 #include "qed_vf.h"
47 static int qed_sriov_eqe_event(struct qed_hwfn *p_hwfn,
48                                u8 opcode,
49                                __le16 echo,
50                                union event_ring_data *data, u8 fw_return_code);
51 static int qed_iov_bulletin_set_mac(struct qed_hwfn *p_hwfn, u8 *mac, int vfid);
52
53 static u8 qed_vf_calculate_legacy(struct qed_vf_info *p_vf)
54 {
55         u8 legacy = 0;
56
57         if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
58             ETH_HSI_VER_NO_PKT_LEN_TUNN)
59                 legacy |= QED_QCID_LEGACY_VF_RX_PROD;
60
61         if (!(p_vf->acquire.vfdev_info.capabilities &
62               VFPF_ACQUIRE_CAP_QUEUE_QIDS))
63                 legacy |= QED_QCID_LEGACY_VF_CID;
64
65         return legacy;
66 }
67
68 /* IOV ramrods */
69 static int qed_sp_vf_start(struct qed_hwfn *p_hwfn, struct qed_vf_info *p_vf)
70 {
71         struct vf_start_ramrod_data *p_ramrod = NULL;
72         struct qed_spq_entry *p_ent = NULL;
73         struct qed_sp_init_data init_data;
74         int rc = -EINVAL;
75         u8 fp_minor;
76
77         /* Get SPQ entry */
78         memset(&init_data, 0, sizeof(init_data));
79         init_data.cid = qed_spq_get_cid(p_hwfn);
80         init_data.opaque_fid = p_vf->opaque_fid;
81         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
82
83         rc = qed_sp_init_request(p_hwfn, &p_ent,
84                                  COMMON_RAMROD_VF_START,
85                                  PROTOCOLID_COMMON, &init_data);
86         if (rc)
87                 return rc;
88
89         p_ramrod = &p_ent->ramrod.vf_start;
90
91         p_ramrod->vf_id = GET_FIELD(p_vf->concrete_fid, PXP_CONCRETE_FID_VFID);
92         p_ramrod->opaque_fid = cpu_to_le16(p_vf->opaque_fid);
93
94         switch (p_hwfn->hw_info.personality) {
95         case QED_PCI_ETH:
96                 p_ramrod->personality = PERSONALITY_ETH;
97                 break;
98         case QED_PCI_ETH_ROCE:
99                 p_ramrod->personality = PERSONALITY_RDMA_AND_ETH;
100                 break;
101         default:
102                 DP_NOTICE(p_hwfn, "Unknown VF personality %d\n",
103                           p_hwfn->hw_info.personality);
104                 return -EINVAL;
105         }
106
107         fp_minor = p_vf->acquire.vfdev_info.eth_fp_hsi_minor;
108         if (fp_minor > ETH_HSI_VER_MINOR &&
109             fp_minor != ETH_HSI_VER_NO_PKT_LEN_TUNN) {
110                 DP_VERBOSE(p_hwfn,
111                            QED_MSG_IOV,
112                            "VF [%d] - Requested fp hsi %02x.%02x which is slightly newer than PF's %02x.%02x; Configuring PFs version\n",
113                            p_vf->abs_vf_id,
114                            ETH_HSI_VER_MAJOR,
115                            fp_minor, ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);
116                 fp_minor = ETH_HSI_VER_MINOR;
117         }
118
119         p_ramrod->hsi_fp_ver.major_ver_arr[ETH_VER_KEY] = ETH_HSI_VER_MAJOR;
120         p_ramrod->hsi_fp_ver.minor_ver_arr[ETH_VER_KEY] = fp_minor;
121
122         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
123                    "VF[%d] - Starting using HSI %02x.%02x\n",
124                    p_vf->abs_vf_id, ETH_HSI_VER_MAJOR, fp_minor);
125
126         return qed_spq_post(p_hwfn, p_ent, NULL);
127 }
128
129 static int qed_sp_vf_stop(struct qed_hwfn *p_hwfn,
130                           u32 concrete_vfid, u16 opaque_vfid)
131 {
132         struct vf_stop_ramrod_data *p_ramrod = NULL;
133         struct qed_spq_entry *p_ent = NULL;
134         struct qed_sp_init_data init_data;
135         int rc = -EINVAL;
136
137         /* Get SPQ entry */
138         memset(&init_data, 0, sizeof(init_data));
139         init_data.cid = qed_spq_get_cid(p_hwfn);
140         init_data.opaque_fid = opaque_vfid;
141         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
142
143         rc = qed_sp_init_request(p_hwfn, &p_ent,
144                                  COMMON_RAMROD_VF_STOP,
145                                  PROTOCOLID_COMMON, &init_data);
146         if (rc)
147                 return rc;
148
149         p_ramrod = &p_ent->ramrod.vf_stop;
150
151         p_ramrod->vf_id = GET_FIELD(concrete_vfid, PXP_CONCRETE_FID_VFID);
152
153         return qed_spq_post(p_hwfn, p_ent, NULL);
154 }
155
156 bool qed_iov_is_valid_vfid(struct qed_hwfn *p_hwfn,
157                            int rel_vf_id,
158                            bool b_enabled_only, bool b_non_malicious)
159 {
160         if (!p_hwfn->pf_iov_info) {
161                 DP_NOTICE(p_hwfn->cdev, "No iov info\n");
162                 return false;
163         }
164
165         if ((rel_vf_id >= p_hwfn->cdev->p_iov_info->total_vfs) ||
166             (rel_vf_id < 0))
167                 return false;
168
169         if ((!p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_init) &&
170             b_enabled_only)
171                 return false;
172
173         if ((p_hwfn->pf_iov_info->vfs_array[rel_vf_id].b_malicious) &&
174             b_non_malicious)
175                 return false;
176
177         return true;
178 }
179
180 static struct qed_vf_info *qed_iov_get_vf_info(struct qed_hwfn *p_hwfn,
181                                                u16 relative_vf_id,
182                                                bool b_enabled_only)
183 {
184         struct qed_vf_info *vf = NULL;
185
186         if (!p_hwfn->pf_iov_info) {
187                 DP_NOTICE(p_hwfn->cdev, "No iov info\n");
188                 return NULL;
189         }
190
191         if (qed_iov_is_valid_vfid(p_hwfn, relative_vf_id,
192                                   b_enabled_only, false))
193                 vf = &p_hwfn->pf_iov_info->vfs_array[relative_vf_id];
194         else
195                 DP_ERR(p_hwfn, "qed_iov_get_vf_info: VF[%d] is not enabled\n",
196                        relative_vf_id);
197
198         return vf;
199 }
200
201 static struct qed_queue_cid *
202 qed_iov_get_vf_rx_queue_cid(struct qed_vf_queue *p_queue)
203 {
204         int i;
205
206         for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
207                 if (p_queue->cids[i].p_cid && !p_queue->cids[i].b_is_tx)
208                         return p_queue->cids[i].p_cid;
209         }
210
211         return NULL;
212 }
213
214 enum qed_iov_validate_q_mode {
215         QED_IOV_VALIDATE_Q_NA,
216         QED_IOV_VALIDATE_Q_ENABLE,
217         QED_IOV_VALIDATE_Q_DISABLE,
218 };
219
220 static bool qed_iov_validate_queue_mode(struct qed_hwfn *p_hwfn,
221                                         struct qed_vf_info *p_vf,
222                                         u16 qid,
223                                         enum qed_iov_validate_q_mode mode,
224                                         bool b_is_tx)
225 {
226         int i;
227
228         if (mode == QED_IOV_VALIDATE_Q_NA)
229                 return true;
230
231         for (i = 0; i < MAX_QUEUES_PER_QZONE; i++) {
232                 struct qed_vf_queue_cid *p_qcid;
233
234                 p_qcid = &p_vf->vf_queues[qid].cids[i];
235
236                 if (!p_qcid->p_cid)
237                         continue;
238
239                 if (p_qcid->b_is_tx != b_is_tx)
240                         continue;
241
242                 return mode == QED_IOV_VALIDATE_Q_ENABLE;
243         }
244
245         /* In case we haven't found any valid cid, then its disabled */
246         return mode == QED_IOV_VALIDATE_Q_DISABLE;
247 }
248
249 static bool qed_iov_validate_rxq(struct qed_hwfn *p_hwfn,
250                                  struct qed_vf_info *p_vf,
251                                  u16 rx_qid,
252                                  enum qed_iov_validate_q_mode mode)
253 {
254         if (rx_qid >= p_vf->num_rxqs) {
255                 DP_VERBOSE(p_hwfn,
256                            QED_MSG_IOV,
257                            "VF[0x%02x] - can't touch Rx queue[%04x]; Only 0x%04x are allocated\n",
258                            p_vf->abs_vf_id, rx_qid, p_vf->num_rxqs);
259                 return false;
260         }
261
262         return qed_iov_validate_queue_mode(p_hwfn, p_vf, rx_qid, mode, false);
263 }
264
265 static bool qed_iov_validate_txq(struct qed_hwfn *p_hwfn,
266                                  struct qed_vf_info *p_vf,
267                                  u16 tx_qid,
268                                  enum qed_iov_validate_q_mode mode)
269 {
270         if (tx_qid >= p_vf->num_txqs) {
271                 DP_VERBOSE(p_hwfn,
272                            QED_MSG_IOV,
273                            "VF[0x%02x] - can't touch Tx queue[%04x]; Only 0x%04x are allocated\n",
274                            p_vf->abs_vf_id, tx_qid, p_vf->num_txqs);
275                 return false;
276         }
277
278         return qed_iov_validate_queue_mode(p_hwfn, p_vf, tx_qid, mode, true);
279 }
280
281 static bool qed_iov_validate_sb(struct qed_hwfn *p_hwfn,
282                                 struct qed_vf_info *p_vf, u16 sb_idx)
283 {
284         int i;
285
286         for (i = 0; i < p_vf->num_sbs; i++)
287                 if (p_vf->igu_sbs[i] == sb_idx)
288                         return true;
289
290         DP_VERBOSE(p_hwfn,
291                    QED_MSG_IOV,
292                    "VF[0%02x] - tried using sb_idx %04x which doesn't exist as one of its 0x%02x SBs\n",
293                    p_vf->abs_vf_id, sb_idx, p_vf->num_sbs);
294
295         return false;
296 }
297
298 static bool qed_iov_validate_active_rxq(struct qed_hwfn *p_hwfn,
299                                         struct qed_vf_info *p_vf)
300 {
301         u8 i;
302
303         for (i = 0; i < p_vf->num_rxqs; i++)
304                 if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
305                                                 QED_IOV_VALIDATE_Q_ENABLE,
306                                                 false))
307                         return true;
308
309         return false;
310 }
311
312 static bool qed_iov_validate_active_txq(struct qed_hwfn *p_hwfn,
313                                         struct qed_vf_info *p_vf)
314 {
315         u8 i;
316
317         for (i = 0; i < p_vf->num_txqs; i++)
318                 if (qed_iov_validate_queue_mode(p_hwfn, p_vf, i,
319                                                 QED_IOV_VALIDATE_Q_ENABLE,
320                                                 true))
321                         return true;
322
323         return false;
324 }
325
326 static int qed_iov_post_vf_bulletin(struct qed_hwfn *p_hwfn,
327                                     int vfid, struct qed_ptt *p_ptt)
328 {
329         struct qed_bulletin_content *p_bulletin;
330         int crc_size = sizeof(p_bulletin->crc);
331         struct qed_dmae_params params;
332         struct qed_vf_info *p_vf;
333
334         p_vf = qed_iov_get_vf_info(p_hwfn, (u16) vfid, true);
335         if (!p_vf)
336                 return -EINVAL;
337
338         if (!p_vf->vf_bulletin)
339                 return -EINVAL;
340
341         p_bulletin = p_vf->bulletin.p_virt;
342
343         /* Increment bulletin board version and compute crc */
344         p_bulletin->version++;
345         p_bulletin->crc = crc32(0, (u8 *)p_bulletin + crc_size,
346                                 p_vf->bulletin.size - crc_size);
347
348         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
349                    "Posting Bulletin 0x%08x to VF[%d] (CRC 0x%08x)\n",
350                    p_bulletin->version, p_vf->relative_vf_id, p_bulletin->crc);
351
352         /* propagate bulletin board via dmae to vm memory */
353         memset(&params, 0, sizeof(params));
354         params.flags = QED_DMAE_FLAG_VF_DST;
355         params.dst_vfid = p_vf->abs_vf_id;
356         return qed_dmae_host2host(p_hwfn, p_ptt, p_vf->bulletin.phys,
357                                   p_vf->vf_bulletin, p_vf->bulletin.size / 4,
358                                   &params);
359 }
360
361 static int qed_iov_pci_cfg_info(struct qed_dev *cdev)
362 {
363         struct qed_hw_sriov_info *iov = cdev->p_iov_info;
364         int pos = iov->pos;
365
366         DP_VERBOSE(cdev, QED_MSG_IOV, "sriov ext pos %d\n", pos);
367         pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_CTRL, &iov->ctrl);
368
369         pci_read_config_word(cdev->pdev,
370                              pos + PCI_SRIOV_TOTAL_VF, &iov->total_vfs);
371         pci_read_config_word(cdev->pdev,
372                              pos + PCI_SRIOV_INITIAL_VF, &iov->initial_vfs);
373
374         pci_read_config_word(cdev->pdev, pos + PCI_SRIOV_NUM_VF, &iov->num_vfs);
375         if (iov->num_vfs) {
376                 DP_VERBOSE(cdev,
377                            QED_MSG_IOV,
378                            "Number of VFs are already set to non-zero value. Ignoring PCI configuration value\n");
379                 iov->num_vfs = 0;
380         }
381
382         pci_read_config_word(cdev->pdev,
383                              pos + PCI_SRIOV_VF_OFFSET, &iov->offset);
384
385         pci_read_config_word(cdev->pdev,
386                              pos + PCI_SRIOV_VF_STRIDE, &iov->stride);
387
388         pci_read_config_word(cdev->pdev,
389                              pos + PCI_SRIOV_VF_DID, &iov->vf_device_id);
390
391         pci_read_config_dword(cdev->pdev,
392                               pos + PCI_SRIOV_SUP_PGSIZE, &iov->pgsz);
393
394         pci_read_config_dword(cdev->pdev, pos + PCI_SRIOV_CAP, &iov->cap);
395
396         pci_read_config_byte(cdev->pdev, pos + PCI_SRIOV_FUNC_LINK, &iov->link);
397
398         DP_VERBOSE(cdev,
399                    QED_MSG_IOV,
400                    "IOV info: nres %d, cap 0x%x, ctrl 0x%x, total %d, initial %d, num vfs %d, offset %d, stride %d, page size 0x%x\n",
401                    iov->nres,
402                    iov->cap,
403                    iov->ctrl,
404                    iov->total_vfs,
405                    iov->initial_vfs,
406                    iov->nr_virtfn, iov->offset, iov->stride, iov->pgsz);
407
408         /* Some sanity checks */
409         if (iov->num_vfs > NUM_OF_VFS(cdev) ||
410             iov->total_vfs > NUM_OF_VFS(cdev)) {
411                 /* This can happen only due to a bug. In this case we set
412                  * num_vfs to zero to avoid memory corruption in the code that
413                  * assumes max number of vfs
414                  */
415                 DP_NOTICE(cdev,
416                           "IOV: Unexpected number of vfs set: %d setting num_vf to zero\n",
417                           iov->num_vfs);
418
419                 iov->num_vfs = 0;
420                 iov->total_vfs = 0;
421         }
422
423         return 0;
424 }
425
426 static void qed_iov_setup_vfdb(struct qed_hwfn *p_hwfn)
427 {
428         struct qed_hw_sriov_info *p_iov = p_hwfn->cdev->p_iov_info;
429         struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
430         struct qed_bulletin_content *p_bulletin_virt;
431         dma_addr_t req_p, rply_p, bulletin_p;
432         union pfvf_tlvs *p_reply_virt_addr;
433         union vfpf_tlvs *p_req_virt_addr;
434         u8 idx = 0;
435
436         memset(p_iov_info->vfs_array, 0, sizeof(p_iov_info->vfs_array));
437
438         p_req_virt_addr = p_iov_info->mbx_msg_virt_addr;
439         req_p = p_iov_info->mbx_msg_phys_addr;
440         p_reply_virt_addr = p_iov_info->mbx_reply_virt_addr;
441         rply_p = p_iov_info->mbx_reply_phys_addr;
442         p_bulletin_virt = p_iov_info->p_bulletins;
443         bulletin_p = p_iov_info->bulletins_phys;
444         if (!p_req_virt_addr || !p_reply_virt_addr || !p_bulletin_virt) {
445                 DP_ERR(p_hwfn,
446                        "qed_iov_setup_vfdb called without allocating mem first\n");
447                 return;
448         }
449
450         for (idx = 0; idx < p_iov->total_vfs; idx++) {
451                 struct qed_vf_info *vf = &p_iov_info->vfs_array[idx];
452                 u32 concrete;
453
454                 vf->vf_mbx.req_virt = p_req_virt_addr + idx;
455                 vf->vf_mbx.req_phys = req_p + idx * sizeof(union vfpf_tlvs);
456                 vf->vf_mbx.reply_virt = p_reply_virt_addr + idx;
457                 vf->vf_mbx.reply_phys = rply_p + idx * sizeof(union pfvf_tlvs);
458
459                 vf->state = VF_STOPPED;
460                 vf->b_init = false;
461
462                 vf->bulletin.phys = idx *
463                                     sizeof(struct qed_bulletin_content) +
464                                     bulletin_p;
465                 vf->bulletin.p_virt = p_bulletin_virt + idx;
466                 vf->bulletin.size = sizeof(struct qed_bulletin_content);
467
468                 vf->relative_vf_id = idx;
469                 vf->abs_vf_id = idx + p_iov->first_vf_in_pf;
470                 concrete = qed_vfid_to_concrete(p_hwfn, vf->abs_vf_id);
471                 vf->concrete_fid = concrete;
472                 vf->opaque_fid = (p_hwfn->hw_info.opaque_fid & 0xff) |
473                                  (vf->abs_vf_id << 8);
474                 vf->vport_id = idx + 1;
475
476                 vf->num_mac_filters = QED_ETH_VF_NUM_MAC_FILTERS;
477                 vf->num_vlan_filters = QED_ETH_VF_NUM_VLAN_FILTERS;
478         }
479 }
480
481 static int qed_iov_allocate_vfdb(struct qed_hwfn *p_hwfn)
482 {
483         struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
484         void **p_v_addr;
485         u16 num_vfs = 0;
486
487         num_vfs = p_hwfn->cdev->p_iov_info->total_vfs;
488
489         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
490                    "qed_iov_allocate_vfdb for %d VFs\n", num_vfs);
491
492         /* Allocate PF Mailbox buffer (per-VF) */
493         p_iov_info->mbx_msg_size = sizeof(union vfpf_tlvs) * num_vfs;
494         p_v_addr = &p_iov_info->mbx_msg_virt_addr;
495         *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
496                                        p_iov_info->mbx_msg_size,
497                                        &p_iov_info->mbx_msg_phys_addr,
498                                        GFP_KERNEL);
499         if (!*p_v_addr)
500                 return -ENOMEM;
501
502         /* Allocate PF Mailbox Reply buffer (per-VF) */
503         p_iov_info->mbx_reply_size = sizeof(union pfvf_tlvs) * num_vfs;
504         p_v_addr = &p_iov_info->mbx_reply_virt_addr;
505         *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
506                                        p_iov_info->mbx_reply_size,
507                                        &p_iov_info->mbx_reply_phys_addr,
508                                        GFP_KERNEL);
509         if (!*p_v_addr)
510                 return -ENOMEM;
511
512         p_iov_info->bulletins_size = sizeof(struct qed_bulletin_content) *
513                                      num_vfs;
514         p_v_addr = &p_iov_info->p_bulletins;
515         *p_v_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
516                                        p_iov_info->bulletins_size,
517                                        &p_iov_info->bulletins_phys,
518                                        GFP_KERNEL);
519         if (!*p_v_addr)
520                 return -ENOMEM;
521
522         DP_VERBOSE(p_hwfn,
523                    QED_MSG_IOV,
524                    "PF's Requests mailbox [%p virt 0x%llx phys],  Response mailbox [%p virt 0x%llx phys] Bulletins [%p virt 0x%llx phys]\n",
525                    p_iov_info->mbx_msg_virt_addr,
526                    (u64) p_iov_info->mbx_msg_phys_addr,
527                    p_iov_info->mbx_reply_virt_addr,
528                    (u64) p_iov_info->mbx_reply_phys_addr,
529                    p_iov_info->p_bulletins, (u64) p_iov_info->bulletins_phys);
530
531         return 0;
532 }
533
534 static void qed_iov_free_vfdb(struct qed_hwfn *p_hwfn)
535 {
536         struct qed_pf_iov *p_iov_info = p_hwfn->pf_iov_info;
537
538         if (p_hwfn->pf_iov_info->mbx_msg_virt_addr)
539                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
540                                   p_iov_info->mbx_msg_size,
541                                   p_iov_info->mbx_msg_virt_addr,
542                                   p_iov_info->mbx_msg_phys_addr);
543
544         if (p_hwfn->pf_iov_info->mbx_reply_virt_addr)
545                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
546                                   p_iov_info->mbx_reply_size,
547                                   p_iov_info->mbx_reply_virt_addr,
548                                   p_iov_info->mbx_reply_phys_addr);
549
550         if (p_iov_info->p_bulletins)
551                 dma_free_coherent(&p_hwfn->cdev->pdev->dev,
552                                   p_iov_info->bulletins_size,
553                                   p_iov_info->p_bulletins,
554                                   p_iov_info->bulletins_phys);
555 }
556
557 int qed_iov_alloc(struct qed_hwfn *p_hwfn)
558 {
559         struct qed_pf_iov *p_sriov;
560
561         if (!IS_PF_SRIOV(p_hwfn)) {
562                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
563                            "No SR-IOV - no need for IOV db\n");
564                 return 0;
565         }
566
567         p_sriov = kzalloc(sizeof(*p_sriov), GFP_KERNEL);
568         if (!p_sriov)
569                 return -ENOMEM;
570
571         p_hwfn->pf_iov_info = p_sriov;
572
573         qed_spq_register_async_cb(p_hwfn, PROTOCOLID_COMMON,
574                                   qed_sriov_eqe_event);
575
576         return qed_iov_allocate_vfdb(p_hwfn);
577 }
578
579 void qed_iov_setup(struct qed_hwfn *p_hwfn)
580 {
581         if (!IS_PF_SRIOV(p_hwfn) || !IS_PF_SRIOV_ALLOC(p_hwfn))
582                 return;
583
584         qed_iov_setup_vfdb(p_hwfn);
585 }
586
587 void qed_iov_free(struct qed_hwfn *p_hwfn)
588 {
589         qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_COMMON);
590
591         if (IS_PF_SRIOV_ALLOC(p_hwfn)) {
592                 qed_iov_free_vfdb(p_hwfn);
593                 kfree(p_hwfn->pf_iov_info);
594         }
595 }
596
597 void qed_iov_free_hw_info(struct qed_dev *cdev)
598 {
599         kfree(cdev->p_iov_info);
600         cdev->p_iov_info = NULL;
601 }
602
603 int qed_iov_hw_info(struct qed_hwfn *p_hwfn)
604 {
605         struct qed_dev *cdev = p_hwfn->cdev;
606         int pos;
607         int rc;
608
609         if (IS_VF(p_hwfn->cdev))
610                 return 0;
611
612         /* Learn the PCI configuration */
613         pos = pci_find_ext_capability(p_hwfn->cdev->pdev,
614                                       PCI_EXT_CAP_ID_SRIOV);
615         if (!pos) {
616                 DP_VERBOSE(p_hwfn, QED_MSG_IOV, "No PCIe IOV support\n");
617                 return 0;
618         }
619
620         /* Allocate a new struct for IOV information */
621         cdev->p_iov_info = kzalloc(sizeof(*cdev->p_iov_info), GFP_KERNEL);
622         if (!cdev->p_iov_info)
623                 return -ENOMEM;
624
625         cdev->p_iov_info->pos = pos;
626
627         rc = qed_iov_pci_cfg_info(cdev);
628         if (rc)
629                 return rc;
630
631         /* We want PF IOV to be synonemous with the existance of p_iov_info;
632          * In case the capability is published but there are no VFs, simply
633          * de-allocate the struct.
634          */
635         if (!cdev->p_iov_info->total_vfs) {
636                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
637                            "IOV capabilities, but no VFs are published\n");
638                 kfree(cdev->p_iov_info);
639                 cdev->p_iov_info = NULL;
640                 return 0;
641         }
642
643         /* First VF index based on offset is tricky:
644          *  - If ARI is supported [likely], offset - (16 - pf_id) would
645          *    provide the number for eng0. 2nd engine Vfs would begin
646          *    after the first engine's VFs.
647          *  - If !ARI, VFs would start on next device.
648          *    so offset - (256 - pf_id) would provide the number.
649          * Utilize the fact that (256 - pf_id) is achieved only by later
650          * to differentiate between the two.
651          */
652
653         if (p_hwfn->cdev->p_iov_info->offset < (256 - p_hwfn->abs_pf_id)) {
654                 u32 first = p_hwfn->cdev->p_iov_info->offset +
655                             p_hwfn->abs_pf_id - 16;
656
657                 cdev->p_iov_info->first_vf_in_pf = first;
658
659                 if (QED_PATH_ID(p_hwfn))
660                         cdev->p_iov_info->first_vf_in_pf -= MAX_NUM_VFS_BB;
661         } else {
662                 u32 first = p_hwfn->cdev->p_iov_info->offset +
663                             p_hwfn->abs_pf_id - 256;
664
665                 cdev->p_iov_info->first_vf_in_pf = first;
666         }
667
668         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
669                    "First VF in hwfn 0x%08x\n",
670                    cdev->p_iov_info->first_vf_in_pf);
671
672         return 0;
673 }
674
675 static bool _qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn,
676                                      int vfid, bool b_fail_malicious)
677 {
678         /* Check PF supports sriov */
679         if (IS_VF(p_hwfn->cdev) || !IS_QED_SRIOV(p_hwfn->cdev) ||
680             !IS_PF_SRIOV_ALLOC(p_hwfn))
681                 return false;
682
683         /* Check VF validity */
684         if (!qed_iov_is_valid_vfid(p_hwfn, vfid, true, b_fail_malicious))
685                 return false;
686
687         return true;
688 }
689
690 static bool qed_iov_pf_sanity_check(struct qed_hwfn *p_hwfn, int vfid)
691 {
692         return _qed_iov_pf_sanity_check(p_hwfn, vfid, true);
693 }
694
695 static void qed_iov_set_vf_to_disable(struct qed_dev *cdev,
696                                       u16 rel_vf_id, u8 to_disable)
697 {
698         struct qed_vf_info *vf;
699         int i;
700
701         for_each_hwfn(cdev, i) {
702                 struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
703
704                 vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, false);
705                 if (!vf)
706                         continue;
707
708                 vf->to_disable = to_disable;
709         }
710 }
711
712 static void qed_iov_set_vfs_to_disable(struct qed_dev *cdev, u8 to_disable)
713 {
714         u16 i;
715
716         if (!IS_QED_SRIOV(cdev))
717                 return;
718
719         for (i = 0; i < cdev->p_iov_info->total_vfs; i++)
720                 qed_iov_set_vf_to_disable(cdev, i, to_disable);
721 }
722
723 static void qed_iov_vf_pglue_clear_err(struct qed_hwfn *p_hwfn,
724                                        struct qed_ptt *p_ptt, u8 abs_vfid)
725 {
726         qed_wr(p_hwfn, p_ptt,
727                PGLUE_B_REG_WAS_ERROR_VF_31_0_CLR + (abs_vfid >> 5) * 4,
728                1 << (abs_vfid & 0x1f));
729 }
730
731 static void qed_iov_vf_igu_reset(struct qed_hwfn *p_hwfn,
732                                  struct qed_ptt *p_ptt, struct qed_vf_info *vf)
733 {
734         int i;
735
736         /* Set VF masks and configuration - pretend */
737         qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);
738
739         qed_wr(p_hwfn, p_ptt, IGU_REG_STATISTIC_NUM_VF_MSG_SENT, 0);
740
741         /* unpretend */
742         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
743
744         /* iterate over all queues, clear sb consumer */
745         for (i = 0; i < vf->num_sbs; i++)
746                 qed_int_igu_init_pure_rt_single(p_hwfn, p_ptt,
747                                                 vf->igu_sbs[i],
748                                                 vf->opaque_fid, true);
749 }
750
751 static void qed_iov_vf_igu_set_int(struct qed_hwfn *p_hwfn,
752                                    struct qed_ptt *p_ptt,
753                                    struct qed_vf_info *vf, bool enable)
754 {
755         u32 igu_vf_conf;
756
757         qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);
758
759         igu_vf_conf = qed_rd(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION);
760
761         if (enable)
762                 igu_vf_conf |= IGU_VF_CONF_MSI_MSIX_EN;
763         else
764                 igu_vf_conf &= ~IGU_VF_CONF_MSI_MSIX_EN;
765
766         qed_wr(p_hwfn, p_ptt, IGU_REG_VF_CONFIGURATION, igu_vf_conf);
767
768         /* unpretend */
769         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
770 }
771
772 static int
773 qed_iov_enable_vf_access_msix(struct qed_hwfn *p_hwfn,
774                               struct qed_ptt *p_ptt, u8 abs_vf_id, u8 num_sbs)
775 {
776         u8 current_max = 0;
777         int i;
778
779         /* For AH onward, configuration is per-PF. Find maximum of all
780          * the currently enabled child VFs, and set the number to be that.
781          */
782         if (!QED_IS_BB(p_hwfn->cdev)) {
783                 qed_for_each_vf(p_hwfn, i) {
784                         struct qed_vf_info *p_vf;
785
786                         p_vf = qed_iov_get_vf_info(p_hwfn, (u16)i, true);
787                         if (!p_vf)
788                                 continue;
789
790                         current_max = max_t(u8, current_max, p_vf->num_sbs);
791                 }
792         }
793
794         if (num_sbs > current_max)
795                 return qed_mcp_config_vf_msix(p_hwfn, p_ptt,
796                                               abs_vf_id, num_sbs);
797
798         return 0;
799 }
800
801 static int qed_iov_enable_vf_access(struct qed_hwfn *p_hwfn,
802                                     struct qed_ptt *p_ptt,
803                                     struct qed_vf_info *vf)
804 {
805         u32 igu_vf_conf = IGU_VF_CONF_FUNC_EN;
806         int rc;
807
808         /* It's possible VF was previously considered malicious -
809          * clear the indication even if we're only going to disable VF.
810          */
811         vf->b_malicious = false;
812
813         if (vf->to_disable)
814                 return 0;
815
816         DP_VERBOSE(p_hwfn,
817                    QED_MSG_IOV,
818                    "Enable internal access for vf %x [abs %x]\n",
819                    vf->abs_vf_id, QED_VF_ABS_ID(p_hwfn, vf));
820
821         qed_iov_vf_pglue_clear_err(p_hwfn, p_ptt, QED_VF_ABS_ID(p_hwfn, vf));
822
823         qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);
824
825         rc = qed_iov_enable_vf_access_msix(p_hwfn, p_ptt,
826                                            vf->abs_vf_id, vf->num_sbs);
827         if (rc)
828                 return rc;
829
830         qed_fid_pretend(p_hwfn, p_ptt, (u16) vf->concrete_fid);
831
832         SET_FIELD(igu_vf_conf, IGU_VF_CONF_PARENT, p_hwfn->rel_pf_id);
833         STORE_RT_REG(p_hwfn, IGU_REG_VF_CONFIGURATION_RT_OFFSET, igu_vf_conf);
834
835         qed_init_run(p_hwfn, p_ptt, PHASE_VF, vf->abs_vf_id,
836                      p_hwfn->hw_info.hw_mode);
837
838         /* unpretend */
839         qed_fid_pretend(p_hwfn, p_ptt, (u16) p_hwfn->hw_info.concrete_fid);
840
841         vf->state = VF_FREE;
842
843         return rc;
844 }
845
846 /**
847  * @brief qed_iov_config_perm_table - configure the permission
848  *      zone table.
849  *      In E4, queue zone permission table size is 320x9. There
850  *      are 320 VF queues for single engine device (256 for dual
851  *      engine device), and each entry has the following format:
852  *      {Valid, VF[7:0]}
853  * @param p_hwfn
854  * @param p_ptt
855  * @param vf
856  * @param enable
857  */
858 static void qed_iov_config_perm_table(struct qed_hwfn *p_hwfn,
859                                       struct qed_ptt *p_ptt,
860                                       struct qed_vf_info *vf, u8 enable)
861 {
862         u32 reg_addr, val;
863         u16 qzone_id = 0;
864         int qid;
865
866         for (qid = 0; qid < vf->num_rxqs; qid++) {
867                 qed_fw_l2_queue(p_hwfn, vf->vf_queues[qid].fw_rx_qid,
868                                 &qzone_id);
869
870                 reg_addr = PSWHST_REG_ZONE_PERMISSION_TABLE + qzone_id * 4;
871                 val = enable ? (vf->abs_vf_id | BIT(8)) : 0;
872                 qed_wr(p_hwfn, p_ptt, reg_addr, val);
873         }
874 }
875
876 static void qed_iov_enable_vf_traffic(struct qed_hwfn *p_hwfn,
877                                       struct qed_ptt *p_ptt,
878                                       struct qed_vf_info *vf)
879 {
880         /* Reset vf in IGU - interrupts are still disabled */
881         qed_iov_vf_igu_reset(p_hwfn, p_ptt, vf);
882
883         qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 1);
884
885         /* Permission Table */
886         qed_iov_config_perm_table(p_hwfn, p_ptt, vf, true);
887 }
888
889 static u8 qed_iov_alloc_vf_igu_sbs(struct qed_hwfn *p_hwfn,
890                                    struct qed_ptt *p_ptt,
891                                    struct qed_vf_info *vf, u16 num_rx_queues)
892 {
893         struct qed_igu_block *p_block;
894         struct cau_sb_entry sb_entry;
895         int qid = 0;
896         u32 val = 0;
897
898         if (num_rx_queues > p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov)
899                 num_rx_queues = p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov;
900         p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov -= num_rx_queues;
901
902         SET_FIELD(val, IGU_MAPPING_LINE_FUNCTION_NUMBER, vf->abs_vf_id);
903         SET_FIELD(val, IGU_MAPPING_LINE_VALID, 1);
904         SET_FIELD(val, IGU_MAPPING_LINE_PF_VALID, 0);
905
906         for (qid = 0; qid < num_rx_queues; qid++) {
907                 p_block = qed_get_igu_free_sb(p_hwfn, false);
908                 vf->igu_sbs[qid] = p_block->igu_sb_id;
909                 p_block->status &= ~QED_IGU_STATUS_FREE;
910                 SET_FIELD(val, IGU_MAPPING_LINE_VECTOR_NUMBER, qid);
911
912                 qed_wr(p_hwfn, p_ptt,
913                        IGU_REG_MAPPING_MEMORY +
914                        sizeof(u32) * p_block->igu_sb_id, val);
915
916                 /* Configure igu sb in CAU which were marked valid */
917                 qed_init_cau_sb_entry(p_hwfn, &sb_entry,
918                                       p_hwfn->rel_pf_id, vf->abs_vf_id, 1);
919                 qed_dmae_host2grc(p_hwfn, p_ptt,
920                                   (u64)(uintptr_t)&sb_entry,
921                                   CAU_REG_SB_VAR_MEMORY +
922                                   p_block->igu_sb_id * sizeof(u64), 2, 0);
923         }
924
925         vf->num_sbs = (u8) num_rx_queues;
926
927         return vf->num_sbs;
928 }
929
930 static void qed_iov_free_vf_igu_sbs(struct qed_hwfn *p_hwfn,
931                                     struct qed_ptt *p_ptt,
932                                     struct qed_vf_info *vf)
933 {
934         struct qed_igu_info *p_info = p_hwfn->hw_info.p_igu_info;
935         int idx, igu_id;
936         u32 addr, val;
937
938         /* Invalidate igu CAM lines and mark them as free */
939         for (idx = 0; idx < vf->num_sbs; idx++) {
940                 igu_id = vf->igu_sbs[idx];
941                 addr = IGU_REG_MAPPING_MEMORY + sizeof(u32) * igu_id;
942
943                 val = qed_rd(p_hwfn, p_ptt, addr);
944                 SET_FIELD(val, IGU_MAPPING_LINE_VALID, 0);
945                 qed_wr(p_hwfn, p_ptt, addr, val);
946
947                 p_info->entry[igu_id].status |= QED_IGU_STATUS_FREE;
948                 p_hwfn->hw_info.p_igu_info->usage.free_cnt_iov++;
949         }
950
951         vf->num_sbs = 0;
952 }
953
954 static void qed_iov_set_link(struct qed_hwfn *p_hwfn,
955                              u16 vfid,
956                              struct qed_mcp_link_params *params,
957                              struct qed_mcp_link_state *link,
958                              struct qed_mcp_link_capabilities *p_caps)
959 {
960         struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
961                                                        vfid,
962                                                        false);
963         struct qed_bulletin_content *p_bulletin;
964
965         if (!p_vf)
966                 return;
967
968         p_bulletin = p_vf->bulletin.p_virt;
969         p_bulletin->req_autoneg = params->speed.autoneg;
970         p_bulletin->req_adv_speed = params->speed.advertised_speeds;
971         p_bulletin->req_forced_speed = params->speed.forced_speed;
972         p_bulletin->req_autoneg_pause = params->pause.autoneg;
973         p_bulletin->req_forced_rx = params->pause.forced_rx;
974         p_bulletin->req_forced_tx = params->pause.forced_tx;
975         p_bulletin->req_loopback = params->loopback_mode;
976
977         p_bulletin->link_up = link->link_up;
978         p_bulletin->speed = link->speed;
979         p_bulletin->full_duplex = link->full_duplex;
980         p_bulletin->autoneg = link->an;
981         p_bulletin->autoneg_complete = link->an_complete;
982         p_bulletin->parallel_detection = link->parallel_detection;
983         p_bulletin->pfc_enabled = link->pfc_enabled;
984         p_bulletin->partner_adv_speed = link->partner_adv_speed;
985         p_bulletin->partner_tx_flow_ctrl_en = link->partner_tx_flow_ctrl_en;
986         p_bulletin->partner_rx_flow_ctrl_en = link->partner_rx_flow_ctrl_en;
987         p_bulletin->partner_adv_pause = link->partner_adv_pause;
988         p_bulletin->sfp_tx_fault = link->sfp_tx_fault;
989
990         p_bulletin->capability_speed = p_caps->speed_capabilities;
991 }
992
993 static int qed_iov_init_hw_for_vf(struct qed_hwfn *p_hwfn,
994                                   struct qed_ptt *p_ptt,
995                                   struct qed_iov_vf_init_params *p_params)
996 {
997         struct qed_mcp_link_capabilities link_caps;
998         struct qed_mcp_link_params link_params;
999         struct qed_mcp_link_state link_state;
1000         u8 num_of_vf_avaiable_chains = 0;
1001         struct qed_vf_info *vf = NULL;
1002         u16 qid, num_irqs;
1003         int rc = 0;
1004         u32 cids;
1005         u8 i;
1006
1007         vf = qed_iov_get_vf_info(p_hwfn, p_params->rel_vf_id, false);
1008         if (!vf) {
1009                 DP_ERR(p_hwfn, "qed_iov_init_hw_for_vf : vf is NULL\n");
1010                 return -EINVAL;
1011         }
1012
1013         if (vf->b_init) {
1014                 DP_NOTICE(p_hwfn, "VF[%d] is already active.\n",
1015                           p_params->rel_vf_id);
1016                 return -EINVAL;
1017         }
1018
1019         /* Perform sanity checking on the requested queue_id */
1020         for (i = 0; i < p_params->num_queues; i++) {
1021                 u16 min_vf_qzone = FEAT_NUM(p_hwfn, QED_PF_L2_QUE);
1022                 u16 max_vf_qzone = min_vf_qzone +
1023                     FEAT_NUM(p_hwfn, QED_VF_L2_QUE) - 1;
1024
1025                 qid = p_params->req_rx_queue[i];
1026                 if (qid < min_vf_qzone || qid > max_vf_qzone) {
1027                         DP_NOTICE(p_hwfn,
1028                                   "Can't enable Rx qid [%04x] for VF[%d]: qids [0x%04x,...,0x%04x] available\n",
1029                                   qid,
1030                                   p_params->rel_vf_id,
1031                                   min_vf_qzone, max_vf_qzone);
1032                         return -EINVAL;
1033                 }
1034
1035                 qid = p_params->req_tx_queue[i];
1036                 if (qid > max_vf_qzone) {
1037                         DP_NOTICE(p_hwfn,
1038                                   "Can't enable Tx qid [%04x] for VF[%d]: max qid 0x%04x\n",
1039                                   qid, p_params->rel_vf_id, max_vf_qzone);
1040                         return -EINVAL;
1041                 }
1042
1043                 /* If client *really* wants, Tx qid can be shared with PF */
1044                 if (qid < min_vf_qzone)
1045                         DP_VERBOSE(p_hwfn,
1046                                    QED_MSG_IOV,
1047                                    "VF[%d] is using PF qid [0x%04x] for Txq[0x%02x]\n",
1048                                    p_params->rel_vf_id, qid, i);
1049         }
1050
1051         /* Limit number of queues according to number of CIDs */
1052         qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH, &cids);
1053         DP_VERBOSE(p_hwfn,
1054                    QED_MSG_IOV,
1055                    "VF[%d] - requesting to initialize for 0x%04x queues [0x%04x CIDs available]\n",
1056                    vf->relative_vf_id, p_params->num_queues, (u16)cids);
1057         num_irqs = min_t(u16, p_params->num_queues, ((u16)cids));
1058
1059         num_of_vf_avaiable_chains = qed_iov_alloc_vf_igu_sbs(p_hwfn,
1060                                                              p_ptt,
1061                                                              vf, num_irqs);
1062         if (!num_of_vf_avaiable_chains) {
1063                 DP_ERR(p_hwfn, "no available igu sbs\n");
1064                 return -ENOMEM;
1065         }
1066
1067         /* Choose queue number and index ranges */
1068         vf->num_rxqs = num_of_vf_avaiable_chains;
1069         vf->num_txqs = num_of_vf_avaiable_chains;
1070
1071         for (i = 0; i < vf->num_rxqs; i++) {
1072                 struct qed_vf_queue *p_queue = &vf->vf_queues[i];
1073
1074                 p_queue->fw_rx_qid = p_params->req_rx_queue[i];
1075                 p_queue->fw_tx_qid = p_params->req_tx_queue[i];
1076
1077                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1078                            "VF[%d] - Q[%d] SB %04x, qid [Rx %04x Tx %04x]\n",
1079                            vf->relative_vf_id, i, vf->igu_sbs[i],
1080                            p_queue->fw_rx_qid, p_queue->fw_tx_qid);
1081         }
1082
1083         /* Update the link configuration in bulletin */
1084         memcpy(&link_params, qed_mcp_get_link_params(p_hwfn),
1085                sizeof(link_params));
1086         memcpy(&link_state, qed_mcp_get_link_state(p_hwfn), sizeof(link_state));
1087         memcpy(&link_caps, qed_mcp_get_link_capabilities(p_hwfn),
1088                sizeof(link_caps));
1089         qed_iov_set_link(p_hwfn, p_params->rel_vf_id,
1090                          &link_params, &link_state, &link_caps);
1091
1092         rc = qed_iov_enable_vf_access(p_hwfn, p_ptt, vf);
1093         if (!rc) {
1094                 vf->b_init = true;
1095
1096                 if (IS_LEAD_HWFN(p_hwfn))
1097                         p_hwfn->cdev->p_iov_info->num_vfs++;
1098         }
1099
1100         return rc;
1101 }
1102
1103 static int qed_iov_release_hw_for_vf(struct qed_hwfn *p_hwfn,
1104                                      struct qed_ptt *p_ptt, u16 rel_vf_id)
1105 {
1106         struct qed_mcp_link_capabilities caps;
1107         struct qed_mcp_link_params params;
1108         struct qed_mcp_link_state link;
1109         struct qed_vf_info *vf = NULL;
1110
1111         vf = qed_iov_get_vf_info(p_hwfn, rel_vf_id, true);
1112         if (!vf) {
1113                 DP_ERR(p_hwfn, "qed_iov_release_hw_for_vf : vf is NULL\n");
1114                 return -EINVAL;
1115         }
1116
1117         if (vf->bulletin.p_virt)
1118                 memset(vf->bulletin.p_virt, 0, sizeof(*vf->bulletin.p_virt));
1119
1120         memset(&vf->p_vf_info, 0, sizeof(vf->p_vf_info));
1121
1122         /* Get the link configuration back in bulletin so
1123          * that when VFs are re-enabled they get the actual
1124          * link configuration.
1125          */
1126         memcpy(&params, qed_mcp_get_link_params(p_hwfn), sizeof(params));
1127         memcpy(&link, qed_mcp_get_link_state(p_hwfn), sizeof(link));
1128         memcpy(&caps, qed_mcp_get_link_capabilities(p_hwfn), sizeof(caps));
1129         qed_iov_set_link(p_hwfn, rel_vf_id, &params, &link, &caps);
1130
1131         /* Forget the VF's acquisition message */
1132         memset(&vf->acquire, 0, sizeof(vf->acquire));
1133
1134         /* disablng interrupts and resetting permission table was done during
1135          * vf-close, however, we could get here without going through vf_close
1136          */
1137         /* Disable Interrupts for VF */
1138         qed_iov_vf_igu_set_int(p_hwfn, p_ptt, vf, 0);
1139
1140         /* Reset Permission table */
1141         qed_iov_config_perm_table(p_hwfn, p_ptt, vf, 0);
1142
1143         vf->num_rxqs = 0;
1144         vf->num_txqs = 0;
1145         qed_iov_free_vf_igu_sbs(p_hwfn, p_ptt, vf);
1146
1147         if (vf->b_init) {
1148                 vf->b_init = false;
1149
1150                 if (IS_LEAD_HWFN(p_hwfn))
1151                         p_hwfn->cdev->p_iov_info->num_vfs--;
1152         }
1153
1154         return 0;
1155 }
1156
1157 static bool qed_iov_tlv_supported(u16 tlvtype)
1158 {
1159         return CHANNEL_TLV_NONE < tlvtype && tlvtype < CHANNEL_TLV_MAX;
1160 }
1161
1162 /* place a given tlv on the tlv buffer, continuing current tlv list */
1163 void *qed_add_tlv(struct qed_hwfn *p_hwfn, u8 **offset, u16 type, u16 length)
1164 {
1165         struct channel_tlv *tl = (struct channel_tlv *)*offset;
1166
1167         tl->type = type;
1168         tl->length = length;
1169
1170         /* Offset should keep pointing to next TLV (the end of the last) */
1171         *offset += length;
1172
1173         /* Return a pointer to the start of the added tlv */
1174         return *offset - length;
1175 }
1176
1177 /* list the types and lengths of the tlvs on the buffer */
1178 void qed_dp_tlv_list(struct qed_hwfn *p_hwfn, void *tlvs_list)
1179 {
1180         u16 i = 1, total_length = 0;
1181         struct channel_tlv *tlv;
1182
1183         do {
1184                 tlv = (struct channel_tlv *)((u8 *)tlvs_list + total_length);
1185
1186                 /* output tlv */
1187                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1188                            "TLV number %d: type %d, length %d\n",
1189                            i, tlv->type, tlv->length);
1190
1191                 if (tlv->type == CHANNEL_TLV_LIST_END)
1192                         return;
1193
1194                 /* Validate entry - protect against malicious VFs */
1195                 if (!tlv->length) {
1196                         DP_NOTICE(p_hwfn, "TLV of length 0 found\n");
1197                         return;
1198                 }
1199
1200                 total_length += tlv->length;
1201
1202                 if (total_length >= sizeof(struct tlv_buffer_size)) {
1203                         DP_NOTICE(p_hwfn, "TLV ==> Buffer overflow\n");
1204                         return;
1205                 }
1206
1207                 i++;
1208         } while (1);
1209 }
1210
1211 static void qed_iov_send_response(struct qed_hwfn *p_hwfn,
1212                                   struct qed_ptt *p_ptt,
1213                                   struct qed_vf_info *p_vf,
1214                                   u16 length, u8 status)
1215 {
1216         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
1217         struct qed_dmae_params params;
1218         u8 eng_vf_id;
1219
1220         mbx->reply_virt->default_resp.hdr.status = status;
1221
1222         qed_dp_tlv_list(p_hwfn, mbx->reply_virt);
1223
1224         eng_vf_id = p_vf->abs_vf_id;
1225
1226         memset(&params, 0, sizeof(struct qed_dmae_params));
1227         params.flags = QED_DMAE_FLAG_VF_DST;
1228         params.dst_vfid = eng_vf_id;
1229
1230         qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys + sizeof(u64),
1231                            mbx->req_virt->first_tlv.reply_address +
1232                            sizeof(u64),
1233                            (sizeof(union pfvf_tlvs) - sizeof(u64)) / 4,
1234                            &params);
1235
1236         /* Once PF copies the rc to the VF, the latter can continue
1237          * and send an additional message. So we have to make sure the
1238          * channel would be re-set to ready prior to that.
1239          */
1240         REG_WR(p_hwfn,
1241                GTT_BAR0_MAP_REG_USDM_RAM +
1242                USTORM_VF_PF_CHANNEL_READY_OFFSET(eng_vf_id), 1);
1243
1244         qed_dmae_host2host(p_hwfn, p_ptt, mbx->reply_phys,
1245                            mbx->req_virt->first_tlv.reply_address,
1246                            sizeof(u64) / 4, &params);
1247 }
1248
1249 static u16 qed_iov_vport_to_tlv(struct qed_hwfn *p_hwfn,
1250                                 enum qed_iov_vport_update_flag flag)
1251 {
1252         switch (flag) {
1253         case QED_IOV_VP_UPDATE_ACTIVATE:
1254                 return CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
1255         case QED_IOV_VP_UPDATE_VLAN_STRIP:
1256                 return CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
1257         case QED_IOV_VP_UPDATE_TX_SWITCH:
1258                 return CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
1259         case QED_IOV_VP_UPDATE_MCAST:
1260                 return CHANNEL_TLV_VPORT_UPDATE_MCAST;
1261         case QED_IOV_VP_UPDATE_ACCEPT_PARAM:
1262                 return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
1263         case QED_IOV_VP_UPDATE_RSS:
1264                 return CHANNEL_TLV_VPORT_UPDATE_RSS;
1265         case QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN:
1266                 return CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
1267         case QED_IOV_VP_UPDATE_SGE_TPA:
1268                 return CHANNEL_TLV_VPORT_UPDATE_SGE_TPA;
1269         default:
1270                 return 0;
1271         }
1272 }
1273
1274 static u16 qed_iov_prep_vp_update_resp_tlvs(struct qed_hwfn *p_hwfn,
1275                                             struct qed_vf_info *p_vf,
1276                                             struct qed_iov_vf_mbx *p_mbx,
1277                                             u8 status,
1278                                             u16 tlvs_mask, u16 tlvs_accepted)
1279 {
1280         struct pfvf_def_resp_tlv *resp;
1281         u16 size, total_len, i;
1282
1283         memset(p_mbx->reply_virt, 0, sizeof(union pfvf_tlvs));
1284         p_mbx->offset = (u8 *)p_mbx->reply_virt;
1285         size = sizeof(struct pfvf_def_resp_tlv);
1286         total_len = size;
1287
1288         qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_VPORT_UPDATE, size);
1289
1290         /* Prepare response for all extended tlvs if they are found by PF */
1291         for (i = 0; i < QED_IOV_VP_UPDATE_MAX; i++) {
1292                 if (!(tlvs_mask & BIT(i)))
1293                         continue;
1294
1295                 resp = qed_add_tlv(p_hwfn, &p_mbx->offset,
1296                                    qed_iov_vport_to_tlv(p_hwfn, i), size);
1297
1298                 if (tlvs_accepted & BIT(i))
1299                         resp->hdr.status = status;
1300                 else
1301                         resp->hdr.status = PFVF_STATUS_NOT_SUPPORTED;
1302
1303                 DP_VERBOSE(p_hwfn,
1304                            QED_MSG_IOV,
1305                            "VF[%d] - vport_update response: TLV %d, status %02x\n",
1306                            p_vf->relative_vf_id,
1307                            qed_iov_vport_to_tlv(p_hwfn, i), resp->hdr.status);
1308
1309                 total_len += size;
1310         }
1311
1312         qed_add_tlv(p_hwfn, &p_mbx->offset, CHANNEL_TLV_LIST_END,
1313                     sizeof(struct channel_list_end_tlv));
1314
1315         return total_len;
1316 }
1317
1318 static void qed_iov_prepare_resp(struct qed_hwfn *p_hwfn,
1319                                  struct qed_ptt *p_ptt,
1320                                  struct qed_vf_info *vf_info,
1321                                  u16 type, u16 length, u8 status)
1322 {
1323         struct qed_iov_vf_mbx *mbx = &vf_info->vf_mbx;
1324
1325         mbx->offset = (u8 *)mbx->reply_virt;
1326
1327         qed_add_tlv(p_hwfn, &mbx->offset, type, length);
1328         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
1329                     sizeof(struct channel_list_end_tlv));
1330
1331         qed_iov_send_response(p_hwfn, p_ptt, vf_info, length, status);
1332 }
1333
1334 static struct
1335 qed_public_vf_info *qed_iov_get_public_vf_info(struct qed_hwfn *p_hwfn,
1336                                                u16 relative_vf_id,
1337                                                bool b_enabled_only)
1338 {
1339         struct qed_vf_info *vf = NULL;
1340
1341         vf = qed_iov_get_vf_info(p_hwfn, relative_vf_id, b_enabled_only);
1342         if (!vf)
1343                 return NULL;
1344
1345         return &vf->p_vf_info;
1346 }
1347
1348 static void qed_iov_clean_vf(struct qed_hwfn *p_hwfn, u8 vfid)
1349 {
1350         struct qed_public_vf_info *vf_info;
1351
1352         vf_info = qed_iov_get_public_vf_info(p_hwfn, vfid, false);
1353
1354         if (!vf_info)
1355                 return;
1356
1357         /* Clear the VF mac */
1358         eth_zero_addr(vf_info->mac);
1359
1360         vf_info->rx_accept_mode = 0;
1361         vf_info->tx_accept_mode = 0;
1362 }
1363
1364 static void qed_iov_vf_cleanup(struct qed_hwfn *p_hwfn,
1365                                struct qed_vf_info *p_vf)
1366 {
1367         u32 i, j;
1368
1369         p_vf->vf_bulletin = 0;
1370         p_vf->vport_instance = 0;
1371         p_vf->configured_features = 0;
1372
1373         /* If VF previously requested less resources, go back to default */
1374         p_vf->num_rxqs = p_vf->num_sbs;
1375         p_vf->num_txqs = p_vf->num_sbs;
1376
1377         p_vf->num_active_rxqs = 0;
1378
1379         for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
1380                 struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];
1381
1382                 for (j = 0; j < MAX_QUEUES_PER_QZONE; j++) {
1383                         if (!p_queue->cids[j].p_cid)
1384                                 continue;
1385
1386                         qed_eth_queue_cid_release(p_hwfn,
1387                                                   p_queue->cids[j].p_cid);
1388                         p_queue->cids[j].p_cid = NULL;
1389                 }
1390         }
1391
1392         memset(&p_vf->shadow_config, 0, sizeof(p_vf->shadow_config));
1393         memset(&p_vf->acquire, 0, sizeof(p_vf->acquire));
1394         qed_iov_clean_vf(p_hwfn, p_vf->relative_vf_id);
1395 }
1396
1397 /* Returns either 0, or log(size) */
1398 static u32 qed_iov_vf_db_bar_size(struct qed_hwfn *p_hwfn,
1399                                   struct qed_ptt *p_ptt)
1400 {
1401         u32 val = qed_rd(p_hwfn, p_ptt, PGLUE_B_REG_VF_BAR1_SIZE);
1402
1403         if (val)
1404                 return val + 11;
1405         return 0;
1406 }
1407
1408 static void
1409 qed_iov_vf_mbx_acquire_resc_cids(struct qed_hwfn *p_hwfn,
1410                                  struct qed_ptt *p_ptt,
1411                                  struct qed_vf_info *p_vf,
1412                                  struct vf_pf_resc_request *p_req,
1413                                  struct pf_vf_resc *p_resp)
1414 {
1415         u8 num_vf_cons = p_hwfn->pf_params.eth_pf_params.num_vf_cons;
1416         u8 db_size = qed_db_addr_vf(1, DQ_DEMS_LEGACY) -
1417                      qed_db_addr_vf(0, DQ_DEMS_LEGACY);
1418         u32 bar_size;
1419
1420         p_resp->num_cids = min_t(u8, p_req->num_cids, num_vf_cons);
1421
1422         /* If VF didn't bother asking for QIDs than don't bother limiting
1423          * number of CIDs. The VF doesn't care about the number, and this
1424          * has the likely result of causing an additional acquisition.
1425          */
1426         if (!(p_vf->acquire.vfdev_info.capabilities &
1427               VFPF_ACQUIRE_CAP_QUEUE_QIDS))
1428                 return;
1429
1430         /* If doorbell bar was mapped by VF, limit the VF CIDs to an amount
1431          * that would make sure doorbells for all CIDs fall within the bar.
1432          * If it doesn't, make sure regview window is sufficient.
1433          */
1434         if (p_vf->acquire.vfdev_info.capabilities &
1435             VFPF_ACQUIRE_CAP_PHYSICAL_BAR) {
1436                 bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);
1437                 if (bar_size)
1438                         bar_size = 1 << bar_size;
1439
1440                 if (p_hwfn->cdev->num_hwfns > 1)
1441                         bar_size /= 2;
1442         } else {
1443                 bar_size = PXP_VF_BAR0_DQ_LENGTH;
1444         }
1445
1446         if (bar_size / db_size < 256)
1447                 p_resp->num_cids = min_t(u8, p_resp->num_cids,
1448                                          (u8)(bar_size / db_size));
1449 }
1450
1451 static u8 qed_iov_vf_mbx_acquire_resc(struct qed_hwfn *p_hwfn,
1452                                       struct qed_ptt *p_ptt,
1453                                       struct qed_vf_info *p_vf,
1454                                       struct vf_pf_resc_request *p_req,
1455                                       struct pf_vf_resc *p_resp)
1456 {
1457         u8 i;
1458
1459         /* Queue related information */
1460         p_resp->num_rxqs = p_vf->num_rxqs;
1461         p_resp->num_txqs = p_vf->num_txqs;
1462         p_resp->num_sbs = p_vf->num_sbs;
1463
1464         for (i = 0; i < p_resp->num_sbs; i++) {
1465                 p_resp->hw_sbs[i].hw_sb_id = p_vf->igu_sbs[i];
1466                 p_resp->hw_sbs[i].sb_qid = 0;
1467         }
1468
1469         /* These fields are filled for backward compatibility.
1470          * Unused by modern vfs.
1471          */
1472         for (i = 0; i < p_resp->num_rxqs; i++) {
1473                 qed_fw_l2_queue(p_hwfn, p_vf->vf_queues[i].fw_rx_qid,
1474                                 (u16 *)&p_resp->hw_qid[i]);
1475                 p_resp->cid[i] = i;
1476         }
1477
1478         /* Filter related information */
1479         p_resp->num_mac_filters = min_t(u8, p_vf->num_mac_filters,
1480                                         p_req->num_mac_filters);
1481         p_resp->num_vlan_filters = min_t(u8, p_vf->num_vlan_filters,
1482                                          p_req->num_vlan_filters);
1483
1484         qed_iov_vf_mbx_acquire_resc_cids(p_hwfn, p_ptt, p_vf, p_req, p_resp);
1485
1486         /* This isn't really needed/enforced, but some legacy VFs might depend
1487          * on the correct filling of this field.
1488          */
1489         p_resp->num_mc_filters = QED_MAX_MC_ADDRS;
1490
1491         /* Validate sufficient resources for VF */
1492         if (p_resp->num_rxqs < p_req->num_rxqs ||
1493             p_resp->num_txqs < p_req->num_txqs ||
1494             p_resp->num_sbs < p_req->num_sbs ||
1495             p_resp->num_mac_filters < p_req->num_mac_filters ||
1496             p_resp->num_vlan_filters < p_req->num_vlan_filters ||
1497             p_resp->num_mc_filters < p_req->num_mc_filters ||
1498             p_resp->num_cids < p_req->num_cids) {
1499                 DP_VERBOSE(p_hwfn,
1500                            QED_MSG_IOV,
1501                            "VF[%d] - Insufficient resources: rxq [%02x/%02x] txq [%02x/%02x] sbs [%02x/%02x] mac [%02x/%02x] vlan [%02x/%02x] mc [%02x/%02x] cids [%02x/%02x]\n",
1502                            p_vf->abs_vf_id,
1503                            p_req->num_rxqs,
1504                            p_resp->num_rxqs,
1505                            p_req->num_rxqs,
1506                            p_resp->num_txqs,
1507                            p_req->num_sbs,
1508                            p_resp->num_sbs,
1509                            p_req->num_mac_filters,
1510                            p_resp->num_mac_filters,
1511                            p_req->num_vlan_filters,
1512                            p_resp->num_vlan_filters,
1513                            p_req->num_mc_filters,
1514                            p_resp->num_mc_filters,
1515                            p_req->num_cids, p_resp->num_cids);
1516
1517                 /* Some legacy OSes are incapable of correctly handling this
1518                  * failure.
1519                  */
1520                 if ((p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
1521                      ETH_HSI_VER_NO_PKT_LEN_TUNN) &&
1522                     (p_vf->acquire.vfdev_info.os_type ==
1523                      VFPF_ACQUIRE_OS_WINDOWS))
1524                         return PFVF_STATUS_SUCCESS;
1525
1526                 return PFVF_STATUS_NO_RESOURCE;
1527         }
1528
1529         return PFVF_STATUS_SUCCESS;
1530 }
1531
1532 static void qed_iov_vf_mbx_acquire_stats(struct qed_hwfn *p_hwfn,
1533                                          struct pfvf_stats_info *p_stats)
1534 {
1535         p_stats->mstats.address = PXP_VF_BAR0_START_MSDM_ZONE_B +
1536                                   offsetof(struct mstorm_vf_zone,
1537                                            non_trigger.eth_queue_stat);
1538         p_stats->mstats.len = sizeof(struct eth_mstorm_per_queue_stat);
1539         p_stats->ustats.address = PXP_VF_BAR0_START_USDM_ZONE_B +
1540                                   offsetof(struct ustorm_vf_zone,
1541                                            non_trigger.eth_queue_stat);
1542         p_stats->ustats.len = sizeof(struct eth_ustorm_per_queue_stat);
1543         p_stats->pstats.address = PXP_VF_BAR0_START_PSDM_ZONE_B +
1544                                   offsetof(struct pstorm_vf_zone,
1545                                            non_trigger.eth_queue_stat);
1546         p_stats->pstats.len = sizeof(struct eth_pstorm_per_queue_stat);
1547         p_stats->tstats.address = 0;
1548         p_stats->tstats.len = 0;
1549 }
1550
1551 static void qed_iov_vf_mbx_acquire(struct qed_hwfn *p_hwfn,
1552                                    struct qed_ptt *p_ptt,
1553                                    struct qed_vf_info *vf)
1554 {
1555         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
1556         struct pfvf_acquire_resp_tlv *resp = &mbx->reply_virt->acquire_resp;
1557         struct pf_vf_pfdev_info *pfdev_info = &resp->pfdev_info;
1558         struct vfpf_acquire_tlv *req = &mbx->req_virt->acquire;
1559         u8 vfpf_status = PFVF_STATUS_NOT_SUPPORTED;
1560         struct pf_vf_resc *resc = &resp->resc;
1561         int rc;
1562
1563         memset(resp, 0, sizeof(*resp));
1564
1565         /* Write the PF version so that VF would know which version
1566          * is supported - might be later overriden. This guarantees that
1567          * VF could recognize legacy PF based on lack of versions in reply.
1568          */
1569         pfdev_info->major_fp_hsi = ETH_HSI_VER_MAJOR;
1570         pfdev_info->minor_fp_hsi = ETH_HSI_VER_MINOR;
1571
1572         if (vf->state != VF_FREE && vf->state != VF_STOPPED) {
1573                 DP_VERBOSE(p_hwfn,
1574                            QED_MSG_IOV,
1575                            "VF[%d] sent ACQUIRE but is already in state %d - fail request\n",
1576                            vf->abs_vf_id, vf->state);
1577                 goto out;
1578         }
1579
1580         /* Validate FW compatibility */
1581         if (req->vfdev_info.eth_fp_hsi_major != ETH_HSI_VER_MAJOR) {
1582                 if (req->vfdev_info.capabilities &
1583                     VFPF_ACQUIRE_CAP_PRE_FP_HSI) {
1584                         struct vf_pf_vfdev_info *p_vfdev = &req->vfdev_info;
1585
1586                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1587                                    "VF[%d] is pre-fastpath HSI\n",
1588                                    vf->abs_vf_id);
1589                         p_vfdev->eth_fp_hsi_major = ETH_HSI_VER_MAJOR;
1590                         p_vfdev->eth_fp_hsi_minor = ETH_HSI_VER_NO_PKT_LEN_TUNN;
1591                 } else {
1592                         DP_INFO(p_hwfn,
1593                                 "VF[%d] needs fastpath HSI %02x.%02x, which is incompatible with loaded FW's faspath HSI %02x.%02x\n",
1594                                 vf->abs_vf_id,
1595                                 req->vfdev_info.eth_fp_hsi_major,
1596                                 req->vfdev_info.eth_fp_hsi_minor,
1597                                 ETH_HSI_VER_MAJOR, ETH_HSI_VER_MINOR);
1598
1599                         goto out;
1600                 }
1601         }
1602
1603         /* On 100g PFs, prevent old VFs from loading */
1604         if ((p_hwfn->cdev->num_hwfns > 1) &&
1605             !(req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_100G)) {
1606                 DP_INFO(p_hwfn,
1607                         "VF[%d] is running an old driver that doesn't support 100g\n",
1608                         vf->abs_vf_id);
1609                 goto out;
1610         }
1611
1612         /* Store the acquire message */
1613         memcpy(&vf->acquire, req, sizeof(vf->acquire));
1614
1615         vf->opaque_fid = req->vfdev_info.opaque_fid;
1616
1617         vf->vf_bulletin = req->bulletin_addr;
1618         vf->bulletin.size = (vf->bulletin.size < req->bulletin_size) ?
1619                             vf->bulletin.size : req->bulletin_size;
1620
1621         /* fill in pfdev info */
1622         pfdev_info->chip_num = p_hwfn->cdev->chip_num;
1623         pfdev_info->db_size = 0;
1624         pfdev_info->indices_per_sb = PIS_PER_SB_E4;
1625
1626         pfdev_info->capabilities = PFVF_ACQUIRE_CAP_DEFAULT_UNTAGGED |
1627                                    PFVF_ACQUIRE_CAP_POST_FW_OVERRIDE;
1628         if (p_hwfn->cdev->num_hwfns > 1)
1629                 pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_100G;
1630
1631         /* Share our ability to use multiple queue-ids only with VFs
1632          * that request it.
1633          */
1634         if (req->vfdev_info.capabilities & VFPF_ACQUIRE_CAP_QUEUE_QIDS)
1635                 pfdev_info->capabilities |= PFVF_ACQUIRE_CAP_QUEUE_QIDS;
1636
1637         /* Share the sizes of the bars with VF */
1638         resp->pfdev_info.bar_size = qed_iov_vf_db_bar_size(p_hwfn, p_ptt);
1639
1640         qed_iov_vf_mbx_acquire_stats(p_hwfn, &pfdev_info->stats_info);
1641
1642         memcpy(pfdev_info->port_mac, p_hwfn->hw_info.hw_mac_addr, ETH_ALEN);
1643
1644         pfdev_info->fw_major = FW_MAJOR_VERSION;
1645         pfdev_info->fw_minor = FW_MINOR_VERSION;
1646         pfdev_info->fw_rev = FW_REVISION_VERSION;
1647         pfdev_info->fw_eng = FW_ENGINEERING_VERSION;
1648
1649         /* Incorrect when legacy, but doesn't matter as legacy isn't reading
1650          * this field.
1651          */
1652         pfdev_info->minor_fp_hsi = min_t(u8, ETH_HSI_VER_MINOR,
1653                                          req->vfdev_info.eth_fp_hsi_minor);
1654         pfdev_info->os_type = VFPF_ACQUIRE_OS_LINUX;
1655         qed_mcp_get_mfw_ver(p_hwfn, p_ptt, &pfdev_info->mfw_ver, NULL);
1656
1657         pfdev_info->dev_type = p_hwfn->cdev->type;
1658         pfdev_info->chip_rev = p_hwfn->cdev->chip_rev;
1659
1660         /* Fill resources available to VF; Make sure there are enough to
1661          * satisfy the VF's request.
1662          */
1663         vfpf_status = qed_iov_vf_mbx_acquire_resc(p_hwfn, p_ptt, vf,
1664                                                   &req->resc_request, resc);
1665         if (vfpf_status != PFVF_STATUS_SUCCESS)
1666                 goto out;
1667
1668         /* Start the VF in FW */
1669         rc = qed_sp_vf_start(p_hwfn, vf);
1670         if (rc) {
1671                 DP_NOTICE(p_hwfn, "Failed to start VF[%02x]\n", vf->abs_vf_id);
1672                 vfpf_status = PFVF_STATUS_FAILURE;
1673                 goto out;
1674         }
1675
1676         /* Fill agreed size of bulletin board in response */
1677         resp->bulletin_size = vf->bulletin.size;
1678         qed_iov_post_vf_bulletin(p_hwfn, vf->relative_vf_id, p_ptt);
1679
1680         DP_VERBOSE(p_hwfn,
1681                    QED_MSG_IOV,
1682                    "VF[%d] ACQUIRE_RESPONSE: pfdev_info- chip_num=0x%x, db_size=%d, idx_per_sb=%d, pf_cap=0x%llx\n"
1683                    "resources- n_rxq-%d, n_txq-%d, n_sbs-%d, n_macs-%d, n_vlans-%d\n",
1684                    vf->abs_vf_id,
1685                    resp->pfdev_info.chip_num,
1686                    resp->pfdev_info.db_size,
1687                    resp->pfdev_info.indices_per_sb,
1688                    resp->pfdev_info.capabilities,
1689                    resc->num_rxqs,
1690                    resc->num_txqs,
1691                    resc->num_sbs,
1692                    resc->num_mac_filters,
1693                    resc->num_vlan_filters);
1694         vf->state = VF_ACQUIRED;
1695
1696         /* Prepare Response */
1697 out:
1698         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_ACQUIRE,
1699                              sizeof(struct pfvf_acquire_resp_tlv), vfpf_status);
1700 }
1701
1702 static int __qed_iov_spoofchk_set(struct qed_hwfn *p_hwfn,
1703                                   struct qed_vf_info *p_vf, bool val)
1704 {
1705         struct qed_sp_vport_update_params params;
1706         int rc;
1707
1708         if (val == p_vf->spoof_chk) {
1709                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1710                            "Spoofchk value[%d] is already configured\n", val);
1711                 return 0;
1712         }
1713
1714         memset(&params, 0, sizeof(struct qed_sp_vport_update_params));
1715         params.opaque_fid = p_vf->opaque_fid;
1716         params.vport_id = p_vf->vport_id;
1717         params.update_anti_spoofing_en_flg = 1;
1718         params.anti_spoofing_en = val;
1719
1720         rc = qed_sp_vport_update(p_hwfn, &params, QED_SPQ_MODE_EBLOCK, NULL);
1721         if (!rc) {
1722                 p_vf->spoof_chk = val;
1723                 p_vf->req_spoofchk_val = p_vf->spoof_chk;
1724                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1725                            "Spoofchk val[%d] configured\n", val);
1726         } else {
1727                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1728                            "Spoofchk configuration[val:%d] failed for VF[%d]\n",
1729                            val, p_vf->relative_vf_id);
1730         }
1731
1732         return rc;
1733 }
1734
1735 static int qed_iov_reconfigure_unicast_vlan(struct qed_hwfn *p_hwfn,
1736                                             struct qed_vf_info *p_vf)
1737 {
1738         struct qed_filter_ucast filter;
1739         int rc = 0;
1740         int i;
1741
1742         memset(&filter, 0, sizeof(filter));
1743         filter.is_rx_filter = 1;
1744         filter.is_tx_filter = 1;
1745         filter.vport_to_add_to = p_vf->vport_id;
1746         filter.opcode = QED_FILTER_ADD;
1747
1748         /* Reconfigure vlans */
1749         for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++) {
1750                 if (!p_vf->shadow_config.vlans[i].used)
1751                         continue;
1752
1753                 filter.type = QED_FILTER_VLAN;
1754                 filter.vlan = p_vf->shadow_config.vlans[i].vid;
1755                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1756                            "Reconfiguring VLAN [0x%04x] for VF [%04x]\n",
1757                            filter.vlan, p_vf->relative_vf_id);
1758                 rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1759                                              &filter, QED_SPQ_MODE_CB, NULL);
1760                 if (rc) {
1761                         DP_NOTICE(p_hwfn,
1762                                   "Failed to configure VLAN [%04x] to VF [%04x]\n",
1763                                   filter.vlan, p_vf->relative_vf_id);
1764                         break;
1765                 }
1766         }
1767
1768         return rc;
1769 }
1770
1771 static int
1772 qed_iov_reconfigure_unicast_shadow(struct qed_hwfn *p_hwfn,
1773                                    struct qed_vf_info *p_vf, u64 events)
1774 {
1775         int rc = 0;
1776
1777         if ((events & BIT(VLAN_ADDR_FORCED)) &&
1778             !(p_vf->configured_features & (1 << VLAN_ADDR_FORCED)))
1779                 rc = qed_iov_reconfigure_unicast_vlan(p_hwfn, p_vf);
1780
1781         return rc;
1782 }
1783
1784 static int qed_iov_configure_vport_forced(struct qed_hwfn *p_hwfn,
1785                                           struct qed_vf_info *p_vf, u64 events)
1786 {
1787         int rc = 0;
1788         struct qed_filter_ucast filter;
1789
1790         if (!p_vf->vport_instance)
1791                 return -EINVAL;
1792
1793         if ((events & BIT(MAC_ADDR_FORCED)) ||
1794             p_vf->p_vf_info.is_trusted_configured) {
1795                 /* Since there's no way [currently] of removing the MAC,
1796                  * we can always assume this means we need to force it.
1797                  */
1798                 memset(&filter, 0, sizeof(filter));
1799                 filter.type = QED_FILTER_MAC;
1800                 filter.opcode = QED_FILTER_REPLACE;
1801                 filter.is_rx_filter = 1;
1802                 filter.is_tx_filter = 1;
1803                 filter.vport_to_add_to = p_vf->vport_id;
1804                 ether_addr_copy(filter.mac, p_vf->bulletin.p_virt->mac);
1805
1806                 rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1807                                              &filter, QED_SPQ_MODE_CB, NULL);
1808                 if (rc) {
1809                         DP_NOTICE(p_hwfn,
1810                                   "PF failed to configure MAC for VF\n");
1811                         return rc;
1812                 }
1813                 if (p_vf->p_vf_info.is_trusted_configured)
1814                         p_vf->configured_features |=
1815                                 BIT(VFPF_BULLETIN_MAC_ADDR);
1816                 else
1817                         p_vf->configured_features |=
1818                                 BIT(MAC_ADDR_FORCED);
1819         }
1820
1821         if (events & BIT(VLAN_ADDR_FORCED)) {
1822                 struct qed_sp_vport_update_params vport_update;
1823                 u8 removal;
1824                 int i;
1825
1826                 memset(&filter, 0, sizeof(filter));
1827                 filter.type = QED_FILTER_VLAN;
1828                 filter.is_rx_filter = 1;
1829                 filter.is_tx_filter = 1;
1830                 filter.vport_to_add_to = p_vf->vport_id;
1831                 filter.vlan = p_vf->bulletin.p_virt->pvid;
1832                 filter.opcode = filter.vlan ? QED_FILTER_REPLACE :
1833                                               QED_FILTER_FLUSH;
1834
1835                 /* Send the ramrod */
1836                 rc = qed_sp_eth_filter_ucast(p_hwfn, p_vf->opaque_fid,
1837                                              &filter, QED_SPQ_MODE_CB, NULL);
1838                 if (rc) {
1839                         DP_NOTICE(p_hwfn,
1840                                   "PF failed to configure VLAN for VF\n");
1841                         return rc;
1842                 }
1843
1844                 /* Update the default-vlan & silent vlan stripping */
1845                 memset(&vport_update, 0, sizeof(vport_update));
1846                 vport_update.opaque_fid = p_vf->opaque_fid;
1847                 vport_update.vport_id = p_vf->vport_id;
1848                 vport_update.update_default_vlan_enable_flg = 1;
1849                 vport_update.default_vlan_enable_flg = filter.vlan ? 1 : 0;
1850                 vport_update.update_default_vlan_flg = 1;
1851                 vport_update.default_vlan = filter.vlan;
1852
1853                 vport_update.update_inner_vlan_removal_flg = 1;
1854                 removal = filter.vlan ? 1
1855                                       : p_vf->shadow_config.inner_vlan_removal;
1856                 vport_update.inner_vlan_removal_flg = removal;
1857                 vport_update.silent_vlan_removal_flg = filter.vlan ? 1 : 0;
1858                 rc = qed_sp_vport_update(p_hwfn,
1859                                          &vport_update,
1860                                          QED_SPQ_MODE_EBLOCK, NULL);
1861                 if (rc) {
1862                         DP_NOTICE(p_hwfn,
1863                                   "PF failed to configure VF vport for vlan\n");
1864                         return rc;
1865                 }
1866
1867                 /* Update all the Rx queues */
1868                 for (i = 0; i < QED_MAX_VF_CHAINS_PER_PF; i++) {
1869                         struct qed_vf_queue *p_queue = &p_vf->vf_queues[i];
1870                         struct qed_queue_cid *p_cid = NULL;
1871
1872                         /* There can be at most 1 Rx queue on qzone. Find it */
1873                         p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
1874                         if (!p_cid)
1875                                 continue;
1876
1877                         rc = qed_sp_eth_rx_queues_update(p_hwfn,
1878                                                          (void **)&p_cid,
1879                                                          1, 0, 1,
1880                                                          QED_SPQ_MODE_EBLOCK,
1881                                                          NULL);
1882                         if (rc) {
1883                                 DP_NOTICE(p_hwfn,
1884                                           "Failed to send Rx update fo queue[0x%04x]\n",
1885                                           p_cid->rel.queue_id);
1886                                 return rc;
1887                         }
1888                 }
1889
1890                 if (filter.vlan)
1891                         p_vf->configured_features |= 1 << VLAN_ADDR_FORCED;
1892                 else
1893                         p_vf->configured_features &= ~BIT(VLAN_ADDR_FORCED);
1894         }
1895
1896         /* If forced features are terminated, we need to configure the shadow
1897          * configuration back again.
1898          */
1899         if (events)
1900                 qed_iov_reconfigure_unicast_shadow(p_hwfn, p_vf, events);
1901
1902         return rc;
1903 }
1904
1905 static void qed_iov_vf_mbx_start_vport(struct qed_hwfn *p_hwfn,
1906                                        struct qed_ptt *p_ptt,
1907                                        struct qed_vf_info *vf)
1908 {
1909         struct qed_sp_vport_start_params params = { 0 };
1910         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
1911         struct vfpf_vport_start_tlv *start;
1912         u8 status = PFVF_STATUS_SUCCESS;
1913         struct qed_vf_info *vf_info;
1914         u64 *p_bitmap;
1915         int sb_id;
1916         int rc;
1917
1918         vf_info = qed_iov_get_vf_info(p_hwfn, (u16) vf->relative_vf_id, true);
1919         if (!vf_info) {
1920                 DP_NOTICE(p_hwfn->cdev,
1921                           "Failed to get VF info, invalid vfid [%d]\n",
1922                           vf->relative_vf_id);
1923                 return;
1924         }
1925
1926         vf->state = VF_ENABLED;
1927         start = &mbx->req_virt->start_vport;
1928
1929         qed_iov_enable_vf_traffic(p_hwfn, p_ptt, vf);
1930
1931         /* Initialize Status block in CAU */
1932         for (sb_id = 0; sb_id < vf->num_sbs; sb_id++) {
1933                 if (!start->sb_addr[sb_id]) {
1934                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
1935                                    "VF[%d] did not fill the address of SB %d\n",
1936                                    vf->relative_vf_id, sb_id);
1937                         break;
1938                 }
1939
1940                 qed_int_cau_conf_sb(p_hwfn, p_ptt,
1941                                     start->sb_addr[sb_id],
1942                                     vf->igu_sbs[sb_id], vf->abs_vf_id, 1);
1943         }
1944
1945         vf->mtu = start->mtu;
1946         vf->shadow_config.inner_vlan_removal = start->inner_vlan_removal;
1947
1948         /* Take into consideration configuration forced by hypervisor;
1949          * If none is configured, use the supplied VF values [for old
1950          * vfs that would still be fine, since they passed '0' as padding].
1951          */
1952         p_bitmap = &vf_info->bulletin.p_virt->valid_bitmap;
1953         if (!(*p_bitmap & BIT(VFPF_BULLETIN_UNTAGGED_DEFAULT_FORCED))) {
1954                 u8 vf_req = start->only_untagged;
1955
1956                 vf_info->bulletin.p_virt->default_only_untagged = vf_req;
1957                 *p_bitmap |= 1 << VFPF_BULLETIN_UNTAGGED_DEFAULT;
1958         }
1959
1960         params.tpa_mode = start->tpa_mode;
1961         params.remove_inner_vlan = start->inner_vlan_removal;
1962         params.tx_switching = true;
1963
1964         params.only_untagged = vf_info->bulletin.p_virt->default_only_untagged;
1965         params.drop_ttl0 = false;
1966         params.concrete_fid = vf->concrete_fid;
1967         params.opaque_fid = vf->opaque_fid;
1968         params.vport_id = vf->vport_id;
1969         params.max_buffers_per_cqe = start->max_buffers_per_cqe;
1970         params.mtu = vf->mtu;
1971         params.check_mac = true;
1972
1973         rc = qed_sp_eth_vport_start(p_hwfn, &params);
1974         if (rc) {
1975                 DP_ERR(p_hwfn,
1976                        "qed_iov_vf_mbx_start_vport returned error %d\n", rc);
1977                 status = PFVF_STATUS_FAILURE;
1978         } else {
1979                 vf->vport_instance++;
1980
1981                 /* Force configuration if needed on the newly opened vport */
1982                 qed_iov_configure_vport_forced(p_hwfn, vf, *p_bitmap);
1983
1984                 __qed_iov_spoofchk_set(p_hwfn, vf, vf->req_spoofchk_val);
1985         }
1986         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_START,
1987                              sizeof(struct pfvf_def_resp_tlv), status);
1988 }
1989
1990 static void qed_iov_vf_mbx_stop_vport(struct qed_hwfn *p_hwfn,
1991                                       struct qed_ptt *p_ptt,
1992                                       struct qed_vf_info *vf)
1993 {
1994         u8 status = PFVF_STATUS_SUCCESS;
1995         int rc;
1996
1997         vf->vport_instance--;
1998         vf->spoof_chk = false;
1999
2000         if ((qed_iov_validate_active_rxq(p_hwfn, vf)) ||
2001             (qed_iov_validate_active_txq(p_hwfn, vf))) {
2002                 vf->b_malicious = true;
2003                 DP_NOTICE(p_hwfn,
2004                           "VF [%02x] - considered malicious; Unable to stop RX/TX queuess\n",
2005                           vf->abs_vf_id);
2006                 status = PFVF_STATUS_MALICIOUS;
2007                 goto out;
2008         }
2009
2010         rc = qed_sp_vport_stop(p_hwfn, vf->opaque_fid, vf->vport_id);
2011         if (rc) {
2012                 DP_ERR(p_hwfn, "qed_iov_vf_mbx_stop_vport returned error %d\n",
2013                        rc);
2014                 status = PFVF_STATUS_FAILURE;
2015         }
2016
2017         /* Forget the configuration on the vport */
2018         vf->configured_features = 0;
2019         memset(&vf->shadow_config, 0, sizeof(vf->shadow_config));
2020
2021 out:
2022         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_VPORT_TEARDOWN,
2023                              sizeof(struct pfvf_def_resp_tlv), status);
2024 }
2025
2026 static void qed_iov_vf_mbx_start_rxq_resp(struct qed_hwfn *p_hwfn,
2027                                           struct qed_ptt *p_ptt,
2028                                           struct qed_vf_info *vf,
2029                                           u8 status, bool b_legacy)
2030 {
2031         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2032         struct pfvf_start_queue_resp_tlv *p_tlv;
2033         struct vfpf_start_rxq_tlv *req;
2034         u16 length;
2035
2036         mbx->offset = (u8 *)mbx->reply_virt;
2037
2038         /* Taking a bigger struct instead of adding a TLV to list was a
2039          * mistake, but one which we're now stuck with, as some older
2040          * clients assume the size of the previous response.
2041          */
2042         if (!b_legacy)
2043                 length = sizeof(*p_tlv);
2044         else
2045                 length = sizeof(struct pfvf_def_resp_tlv);
2046
2047         p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_RXQ,
2048                             length);
2049         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2050                     sizeof(struct channel_list_end_tlv));
2051
2052         /* Update the TLV with the response */
2053         if ((status == PFVF_STATUS_SUCCESS) && !b_legacy) {
2054                 req = &mbx->req_virt->start_rxq;
2055                 p_tlv->offset = PXP_VF_BAR0_START_MSDM_ZONE_B +
2056                                 offsetof(struct mstorm_vf_zone,
2057                                          non_trigger.eth_rx_queue_producers) +
2058                                 sizeof(struct eth_rx_prod_data) * req->rx_qid;
2059         }
2060
2061         qed_iov_send_response(p_hwfn, p_ptt, vf, length, status);
2062 }
2063
2064 static u8 qed_iov_vf_mbx_qid(struct qed_hwfn *p_hwfn,
2065                              struct qed_vf_info *p_vf, bool b_is_tx)
2066 {
2067         struct qed_iov_vf_mbx *p_mbx = &p_vf->vf_mbx;
2068         struct vfpf_qid_tlv *p_qid_tlv;
2069
2070         /* Search for the qid if the VF published its going to provide it */
2071         if (!(p_vf->acquire.vfdev_info.capabilities &
2072               VFPF_ACQUIRE_CAP_QUEUE_QIDS)) {
2073                 if (b_is_tx)
2074                         return QED_IOV_LEGACY_QID_TX;
2075                 else
2076                         return QED_IOV_LEGACY_QID_RX;
2077         }
2078
2079         p_qid_tlv = (struct vfpf_qid_tlv *)
2080                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2081                                              CHANNEL_TLV_QID);
2082         if (!p_qid_tlv) {
2083                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2084                            "VF[%2x]: Failed to provide qid\n",
2085                            p_vf->relative_vf_id);
2086
2087                 return QED_IOV_QID_INVALID;
2088         }
2089
2090         if (p_qid_tlv->qid >= MAX_QUEUES_PER_QZONE) {
2091                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2092                            "VF[%02x]: Provided qid out-of-bounds %02x\n",
2093                            p_vf->relative_vf_id, p_qid_tlv->qid);
2094                 return QED_IOV_QID_INVALID;
2095         }
2096
2097         return p_qid_tlv->qid;
2098 }
2099
2100 static void qed_iov_vf_mbx_start_rxq(struct qed_hwfn *p_hwfn,
2101                                      struct qed_ptt *p_ptt,
2102                                      struct qed_vf_info *vf)
2103 {
2104         struct qed_queue_start_common_params params;
2105         struct qed_queue_cid_vf_params vf_params;
2106         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2107         u8 status = PFVF_STATUS_NO_RESOURCE;
2108         u8 qid_usage_idx, vf_legacy = 0;
2109         struct vfpf_start_rxq_tlv *req;
2110         struct qed_vf_queue *p_queue;
2111         struct qed_queue_cid *p_cid;
2112         struct qed_sb_info sb_dummy;
2113         int rc;
2114
2115         req = &mbx->req_virt->start_rxq;
2116
2117         if (!qed_iov_validate_rxq(p_hwfn, vf, req->rx_qid,
2118                                   QED_IOV_VALIDATE_Q_DISABLE) ||
2119             !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2120                 goto out;
2121
2122         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2123         if (qid_usage_idx == QED_IOV_QID_INVALID)
2124                 goto out;
2125
2126         p_queue = &vf->vf_queues[req->rx_qid];
2127         if (p_queue->cids[qid_usage_idx].p_cid)
2128                 goto out;
2129
2130         vf_legacy = qed_vf_calculate_legacy(vf);
2131
2132         /* Acquire a new queue-cid */
2133         memset(&params, 0, sizeof(params));
2134         params.queue_id = p_queue->fw_rx_qid;
2135         params.vport_id = vf->vport_id;
2136         params.stats_id = vf->abs_vf_id + 0x10;
2137         /* Since IGU index is passed via sb_info, construct a dummy one */
2138         memset(&sb_dummy, 0, sizeof(sb_dummy));
2139         sb_dummy.igu_sb_id = req->hw_sb;
2140         params.p_sb = &sb_dummy;
2141         params.sb_idx = req->sb_index;
2142
2143         memset(&vf_params, 0, sizeof(vf_params));
2144         vf_params.vfid = vf->relative_vf_id;
2145         vf_params.vf_qid = (u8)req->rx_qid;
2146         vf_params.vf_legacy = vf_legacy;
2147         vf_params.qid_usage_idx = qid_usage_idx;
2148         p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2149                                      &params, true, &vf_params);
2150         if (!p_cid)
2151                 goto out;
2152
2153         /* Legacy VFs have their Producers in a different location, which they
2154          * calculate on their own and clean the producer prior to this.
2155          */
2156         if (!(vf_legacy & QED_QCID_LEGACY_VF_RX_PROD))
2157                 REG_WR(p_hwfn,
2158                        GTT_BAR0_MAP_REG_MSDM_RAM +
2159                        MSTORM_ETH_VF_PRODS_OFFSET(vf->abs_vf_id, req->rx_qid),
2160                        0);
2161
2162         rc = qed_eth_rxq_start_ramrod(p_hwfn, p_cid,
2163                                       req->bd_max_bytes,
2164                                       req->rxq_addr,
2165                                       req->cqe_pbl_addr, req->cqe_pbl_size);
2166         if (rc) {
2167                 status = PFVF_STATUS_FAILURE;
2168                 qed_eth_queue_cid_release(p_hwfn, p_cid);
2169         } else {
2170                 p_queue->cids[qid_usage_idx].p_cid = p_cid;
2171                 p_queue->cids[qid_usage_idx].b_is_tx = false;
2172                 status = PFVF_STATUS_SUCCESS;
2173                 vf->num_active_rxqs++;
2174         }
2175
2176 out:
2177         qed_iov_vf_mbx_start_rxq_resp(p_hwfn, p_ptt, vf, status,
2178                                       !!(vf_legacy &
2179                                          QED_QCID_LEGACY_VF_RX_PROD));
2180 }
2181
2182 static void
2183 qed_iov_pf_update_tun_response(struct pfvf_update_tunn_param_tlv *p_resp,
2184                                struct qed_tunnel_info *p_tun,
2185                                u16 tunn_feature_mask)
2186 {
2187         p_resp->tunn_feature_mask = tunn_feature_mask;
2188         p_resp->vxlan_mode = p_tun->vxlan.b_mode_enabled;
2189         p_resp->l2geneve_mode = p_tun->l2_geneve.b_mode_enabled;
2190         p_resp->ipgeneve_mode = p_tun->ip_geneve.b_mode_enabled;
2191         p_resp->l2gre_mode = p_tun->l2_gre.b_mode_enabled;
2192         p_resp->ipgre_mode = p_tun->l2_gre.b_mode_enabled;
2193         p_resp->vxlan_clss = p_tun->vxlan.tun_cls;
2194         p_resp->l2gre_clss = p_tun->l2_gre.tun_cls;
2195         p_resp->ipgre_clss = p_tun->ip_gre.tun_cls;
2196         p_resp->l2geneve_clss = p_tun->l2_geneve.tun_cls;
2197         p_resp->ipgeneve_clss = p_tun->ip_geneve.tun_cls;
2198         p_resp->geneve_udp_port = p_tun->geneve_port.port;
2199         p_resp->vxlan_udp_port = p_tun->vxlan_port.port;
2200 }
2201
2202 static void
2203 __qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2204                               struct qed_tunn_update_type *p_tun,
2205                               enum qed_tunn_mode mask, u8 tun_cls)
2206 {
2207         if (p_req->tun_mode_update_mask & BIT(mask)) {
2208                 p_tun->b_update_mode = true;
2209
2210                 if (p_req->tunn_mode & BIT(mask))
2211                         p_tun->b_mode_enabled = true;
2212         }
2213
2214         p_tun->tun_cls = tun_cls;
2215 }
2216
2217 static void
2218 qed_iov_pf_update_tun_param(struct vfpf_update_tunn_param_tlv *p_req,
2219                             struct qed_tunn_update_type *p_tun,
2220                             struct qed_tunn_update_udp_port *p_port,
2221                             enum qed_tunn_mode mask,
2222                             u8 tun_cls, u8 update_port, u16 port)
2223 {
2224         if (update_port) {
2225                 p_port->b_update_port = true;
2226                 p_port->port = port;
2227         }
2228
2229         __qed_iov_pf_update_tun_param(p_req, p_tun, mask, tun_cls);
2230 }
2231
2232 static bool
2233 qed_iov_pf_validate_tunn_param(struct vfpf_update_tunn_param_tlv *p_req)
2234 {
2235         bool b_update_requested = false;
2236
2237         if (p_req->tun_mode_update_mask || p_req->update_tun_cls ||
2238             p_req->update_geneve_port || p_req->update_vxlan_port)
2239                 b_update_requested = true;
2240
2241         return b_update_requested;
2242 }
2243
2244 static void qed_pf_validate_tunn_mode(struct qed_tunn_update_type *tun, int *rc)
2245 {
2246         if (tun->b_update_mode && !tun->b_mode_enabled) {
2247                 tun->b_update_mode = false;
2248                 *rc = -EINVAL;
2249         }
2250 }
2251
2252 static int
2253 qed_pf_validate_modify_tunn_config(struct qed_hwfn *p_hwfn,
2254                                    u16 *tun_features, bool *update,
2255                                    struct qed_tunnel_info *tun_src)
2256 {
2257         struct qed_eth_cb_ops *ops = p_hwfn->cdev->protocol_ops.eth;
2258         struct qed_tunnel_info *tun = &p_hwfn->cdev->tunnel;
2259         u16 bultn_vxlan_port, bultn_geneve_port;
2260         void *cookie = p_hwfn->cdev->ops_cookie;
2261         int i, rc = 0;
2262
2263         *tun_features = p_hwfn->cdev->tunn_feature_mask;
2264         bultn_vxlan_port = tun->vxlan_port.port;
2265         bultn_geneve_port = tun->geneve_port.port;
2266         qed_pf_validate_tunn_mode(&tun_src->vxlan, &rc);
2267         qed_pf_validate_tunn_mode(&tun_src->l2_geneve, &rc);
2268         qed_pf_validate_tunn_mode(&tun_src->ip_geneve, &rc);
2269         qed_pf_validate_tunn_mode(&tun_src->l2_gre, &rc);
2270         qed_pf_validate_tunn_mode(&tun_src->ip_gre, &rc);
2271
2272         if ((tun_src->b_update_rx_cls || tun_src->b_update_tx_cls) &&
2273             (tun_src->vxlan.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2274              tun_src->l2_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2275              tun_src->ip_geneve.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2276              tun_src->l2_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN ||
2277              tun_src->ip_gre.tun_cls != QED_TUNN_CLSS_MAC_VLAN)) {
2278                 tun_src->b_update_rx_cls = false;
2279                 tun_src->b_update_tx_cls = false;
2280                 rc = -EINVAL;
2281         }
2282
2283         if (tun_src->vxlan_port.b_update_port) {
2284                 if (tun_src->vxlan_port.port == tun->vxlan_port.port) {
2285                         tun_src->vxlan_port.b_update_port = false;
2286                 } else {
2287                         *update = true;
2288                         bultn_vxlan_port = tun_src->vxlan_port.port;
2289                 }
2290         }
2291
2292         if (tun_src->geneve_port.b_update_port) {
2293                 if (tun_src->geneve_port.port == tun->geneve_port.port) {
2294                         tun_src->geneve_port.b_update_port = false;
2295                 } else {
2296                         *update = true;
2297                         bultn_geneve_port = tun_src->geneve_port.port;
2298                 }
2299         }
2300
2301         qed_for_each_vf(p_hwfn, i) {
2302                 qed_iov_bulletin_set_udp_ports(p_hwfn, i, bultn_vxlan_port,
2303                                                bultn_geneve_port);
2304         }
2305
2306         qed_schedule_iov(p_hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
2307         ops->ports_update(cookie, bultn_vxlan_port, bultn_geneve_port);
2308
2309         return rc;
2310 }
2311
2312 static void qed_iov_vf_mbx_update_tunn_param(struct qed_hwfn *p_hwfn,
2313                                              struct qed_ptt *p_ptt,
2314                                              struct qed_vf_info *p_vf)
2315 {
2316         struct qed_tunnel_info *p_tun = &p_hwfn->cdev->tunnel;
2317         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2318         struct pfvf_update_tunn_param_tlv *p_resp;
2319         struct vfpf_update_tunn_param_tlv *p_req;
2320         u8 status = PFVF_STATUS_SUCCESS;
2321         bool b_update_required = false;
2322         struct qed_tunnel_info tunn;
2323         u16 tunn_feature_mask = 0;
2324         int i, rc = 0;
2325
2326         mbx->offset = (u8 *)mbx->reply_virt;
2327
2328         memset(&tunn, 0, sizeof(tunn));
2329         p_req = &mbx->req_virt->tunn_param_update;
2330
2331         if (!qed_iov_pf_validate_tunn_param(p_req)) {
2332                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2333                            "No tunnel update requested by VF\n");
2334                 status = PFVF_STATUS_FAILURE;
2335                 goto send_resp;
2336         }
2337
2338         tunn.b_update_rx_cls = p_req->update_tun_cls;
2339         tunn.b_update_tx_cls = p_req->update_tun_cls;
2340
2341         qed_iov_pf_update_tun_param(p_req, &tunn.vxlan, &tunn.vxlan_port,
2342                                     QED_MODE_VXLAN_TUNN, p_req->vxlan_clss,
2343                                     p_req->update_vxlan_port,
2344                                     p_req->vxlan_port);
2345         qed_iov_pf_update_tun_param(p_req, &tunn.l2_geneve, &tunn.geneve_port,
2346                                     QED_MODE_L2GENEVE_TUNN,
2347                                     p_req->l2geneve_clss,
2348                                     p_req->update_geneve_port,
2349                                     p_req->geneve_port);
2350         __qed_iov_pf_update_tun_param(p_req, &tunn.ip_geneve,
2351                                       QED_MODE_IPGENEVE_TUNN,
2352                                       p_req->ipgeneve_clss);
2353         __qed_iov_pf_update_tun_param(p_req, &tunn.l2_gre,
2354                                       QED_MODE_L2GRE_TUNN, p_req->l2gre_clss);
2355         __qed_iov_pf_update_tun_param(p_req, &tunn.ip_gre,
2356                                       QED_MODE_IPGRE_TUNN, p_req->ipgre_clss);
2357
2358         /* If PF modifies VF's req then it should
2359          * still return an error in case of partial configuration
2360          * or modified configuration as opposed to requested one.
2361          */
2362         rc = qed_pf_validate_modify_tunn_config(p_hwfn, &tunn_feature_mask,
2363                                                 &b_update_required, &tunn);
2364
2365         if (rc)
2366                 status = PFVF_STATUS_FAILURE;
2367
2368         /* If QED client is willing to update anything ? */
2369         if (b_update_required) {
2370                 u16 geneve_port;
2371
2372                 rc = qed_sp_pf_update_tunn_cfg(p_hwfn, p_ptt, &tunn,
2373                                                QED_SPQ_MODE_EBLOCK, NULL);
2374                 if (rc)
2375                         status = PFVF_STATUS_FAILURE;
2376
2377                 geneve_port = p_tun->geneve_port.port;
2378                 qed_for_each_vf(p_hwfn, i) {
2379                         qed_iov_bulletin_set_udp_ports(p_hwfn, i,
2380                                                        p_tun->vxlan_port.port,
2381                                                        geneve_port);
2382                 }
2383         }
2384
2385 send_resp:
2386         p_resp = qed_add_tlv(p_hwfn, &mbx->offset,
2387                              CHANNEL_TLV_UPDATE_TUNN_PARAM, sizeof(*p_resp));
2388
2389         qed_iov_pf_update_tun_response(p_resp, p_tun, tunn_feature_mask);
2390         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2391                     sizeof(struct channel_list_end_tlv));
2392
2393         qed_iov_send_response(p_hwfn, p_ptt, p_vf, sizeof(*p_resp), status);
2394 }
2395
2396 static void qed_iov_vf_mbx_start_txq_resp(struct qed_hwfn *p_hwfn,
2397                                           struct qed_ptt *p_ptt,
2398                                           struct qed_vf_info *p_vf,
2399                                           u32 cid, u8 status)
2400 {
2401         struct qed_iov_vf_mbx *mbx = &p_vf->vf_mbx;
2402         struct pfvf_start_queue_resp_tlv *p_tlv;
2403         bool b_legacy = false;
2404         u16 length;
2405
2406         mbx->offset = (u8 *)mbx->reply_virt;
2407
2408         /* Taking a bigger struct instead of adding a TLV to list was a
2409          * mistake, but one which we're now stuck with, as some older
2410          * clients assume the size of the previous response.
2411          */
2412         if (p_vf->acquire.vfdev_info.eth_fp_hsi_minor ==
2413             ETH_HSI_VER_NO_PKT_LEN_TUNN)
2414                 b_legacy = true;
2415
2416         if (!b_legacy)
2417                 length = sizeof(*p_tlv);
2418         else
2419                 length = sizeof(struct pfvf_def_resp_tlv);
2420
2421         p_tlv = qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_START_TXQ,
2422                             length);
2423         qed_add_tlv(p_hwfn, &mbx->offset, CHANNEL_TLV_LIST_END,
2424                     sizeof(struct channel_list_end_tlv));
2425
2426         /* Update the TLV with the response */
2427         if ((status == PFVF_STATUS_SUCCESS) && !b_legacy)
2428                 p_tlv->offset = qed_db_addr_vf(cid, DQ_DEMS_LEGACY);
2429
2430         qed_iov_send_response(p_hwfn, p_ptt, p_vf, length, status);
2431 }
2432
2433 static void qed_iov_vf_mbx_start_txq(struct qed_hwfn *p_hwfn,
2434                                      struct qed_ptt *p_ptt,
2435                                      struct qed_vf_info *vf)
2436 {
2437         struct qed_queue_start_common_params params;
2438         struct qed_queue_cid_vf_params vf_params;
2439         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2440         u8 status = PFVF_STATUS_NO_RESOURCE;
2441         struct vfpf_start_txq_tlv *req;
2442         struct qed_vf_queue *p_queue;
2443         struct qed_queue_cid *p_cid;
2444         struct qed_sb_info sb_dummy;
2445         u8 qid_usage_idx, vf_legacy;
2446         u32 cid = 0;
2447         int rc;
2448         u16 pq;
2449
2450         memset(&params, 0, sizeof(params));
2451         req = &mbx->req_virt->start_txq;
2452
2453         if (!qed_iov_validate_txq(p_hwfn, vf, req->tx_qid,
2454                                   QED_IOV_VALIDATE_Q_NA) ||
2455             !qed_iov_validate_sb(p_hwfn, vf, req->hw_sb))
2456                 goto out;
2457
2458         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2459         if (qid_usage_idx == QED_IOV_QID_INVALID)
2460                 goto out;
2461
2462         p_queue = &vf->vf_queues[req->tx_qid];
2463         if (p_queue->cids[qid_usage_idx].p_cid)
2464                 goto out;
2465
2466         vf_legacy = qed_vf_calculate_legacy(vf);
2467
2468         /* Acquire a new queue-cid */
2469         params.queue_id = p_queue->fw_tx_qid;
2470         params.vport_id = vf->vport_id;
2471         params.stats_id = vf->abs_vf_id + 0x10;
2472
2473         /* Since IGU index is passed via sb_info, construct a dummy one */
2474         memset(&sb_dummy, 0, sizeof(sb_dummy));
2475         sb_dummy.igu_sb_id = req->hw_sb;
2476         params.p_sb = &sb_dummy;
2477         params.sb_idx = req->sb_index;
2478
2479         memset(&vf_params, 0, sizeof(vf_params));
2480         vf_params.vfid = vf->relative_vf_id;
2481         vf_params.vf_qid = (u8)req->tx_qid;
2482         vf_params.vf_legacy = vf_legacy;
2483         vf_params.qid_usage_idx = qid_usage_idx;
2484
2485         p_cid = qed_eth_queue_to_cid(p_hwfn, vf->opaque_fid,
2486                                      &params, false, &vf_params);
2487         if (!p_cid)
2488                 goto out;
2489
2490         pq = qed_get_cm_pq_idx_vf(p_hwfn, vf->relative_vf_id);
2491         rc = qed_eth_txq_start_ramrod(p_hwfn, p_cid,
2492                                       req->pbl_addr, req->pbl_size, pq);
2493         if (rc) {
2494                 status = PFVF_STATUS_FAILURE;
2495                 qed_eth_queue_cid_release(p_hwfn, p_cid);
2496         } else {
2497                 status = PFVF_STATUS_SUCCESS;
2498                 p_queue->cids[qid_usage_idx].p_cid = p_cid;
2499                 p_queue->cids[qid_usage_idx].b_is_tx = true;
2500                 cid = p_cid->cid;
2501         }
2502
2503 out:
2504         qed_iov_vf_mbx_start_txq_resp(p_hwfn, p_ptt, vf, cid, status);
2505 }
2506
2507 static int qed_iov_vf_stop_rxqs(struct qed_hwfn *p_hwfn,
2508                                 struct qed_vf_info *vf,
2509                                 u16 rxq_id,
2510                                 u8 qid_usage_idx, bool cqe_completion)
2511 {
2512         struct qed_vf_queue *p_queue;
2513         int rc = 0;
2514
2515         if (!qed_iov_validate_rxq(p_hwfn, vf, rxq_id, QED_IOV_VALIDATE_Q_NA)) {
2516                 DP_VERBOSE(p_hwfn,
2517                            QED_MSG_IOV,
2518                            "VF[%d] Tried Closing Rx 0x%04x.%02x which is inactive\n",
2519                            vf->relative_vf_id, rxq_id, qid_usage_idx);
2520                 return -EINVAL;
2521         }
2522
2523         p_queue = &vf->vf_queues[rxq_id];
2524
2525         /* We've validated the index and the existence of the active RXQ -
2526          * now we need to make sure that it's using the correct qid.
2527          */
2528         if (!p_queue->cids[qid_usage_idx].p_cid ||
2529             p_queue->cids[qid_usage_idx].b_is_tx) {
2530                 struct qed_queue_cid *p_cid;
2531
2532                 p_cid = qed_iov_get_vf_rx_queue_cid(p_queue);
2533                 DP_VERBOSE(p_hwfn,
2534                            QED_MSG_IOV,
2535                            "VF[%d] - Tried Closing Rx 0x%04x.%02x, but Rx is at %04x.%02x\n",
2536                            vf->relative_vf_id,
2537                            rxq_id, qid_usage_idx, rxq_id, p_cid->qid_usage_idx);
2538                 return -EINVAL;
2539         }
2540
2541         /* Now that we know we have a valid Rx-queue - close it */
2542         rc = qed_eth_rx_queue_stop(p_hwfn,
2543                                    p_queue->cids[qid_usage_idx].p_cid,
2544                                    false, cqe_completion);
2545         if (rc)
2546                 return rc;
2547
2548         p_queue->cids[qid_usage_idx].p_cid = NULL;
2549         vf->num_active_rxqs--;
2550
2551         return 0;
2552 }
2553
2554 static int qed_iov_vf_stop_txqs(struct qed_hwfn *p_hwfn,
2555                                 struct qed_vf_info *vf,
2556                                 u16 txq_id, u8 qid_usage_idx)
2557 {
2558         struct qed_vf_queue *p_queue;
2559         int rc = 0;
2560
2561         if (!qed_iov_validate_txq(p_hwfn, vf, txq_id, QED_IOV_VALIDATE_Q_NA))
2562                 return -EINVAL;
2563
2564         p_queue = &vf->vf_queues[txq_id];
2565         if (!p_queue->cids[qid_usage_idx].p_cid ||
2566             !p_queue->cids[qid_usage_idx].b_is_tx)
2567                 return -EINVAL;
2568
2569         rc = qed_eth_tx_queue_stop(p_hwfn, p_queue->cids[qid_usage_idx].p_cid);
2570         if (rc)
2571                 return rc;
2572
2573         p_queue->cids[qid_usage_idx].p_cid = NULL;
2574         return 0;
2575 }
2576
2577 static void qed_iov_vf_mbx_stop_rxqs(struct qed_hwfn *p_hwfn,
2578                                      struct qed_ptt *p_ptt,
2579                                      struct qed_vf_info *vf)
2580 {
2581         u16 length = sizeof(struct pfvf_def_resp_tlv);
2582         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2583         u8 status = PFVF_STATUS_FAILURE;
2584         struct vfpf_stop_rxqs_tlv *req;
2585         u8 qid_usage_idx;
2586         int rc;
2587
2588         /* There has never been an official driver that used this interface
2589          * for stopping multiple queues, and it is now considered deprecated.
2590          * Validate this isn't used here.
2591          */
2592         req = &mbx->req_virt->stop_rxqs;
2593         if (req->num_rxqs != 1) {
2594                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2595                            "Odd; VF[%d] tried stopping multiple Rx queues\n",
2596                            vf->relative_vf_id);
2597                 status = PFVF_STATUS_NOT_SUPPORTED;
2598                 goto out;
2599         }
2600
2601         /* Find which qid-index is associated with the queue */
2602         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2603         if (qid_usage_idx == QED_IOV_QID_INVALID)
2604                 goto out;
2605
2606         rc = qed_iov_vf_stop_rxqs(p_hwfn, vf, req->rx_qid,
2607                                   qid_usage_idx, req->cqe_completion);
2608         if (!rc)
2609                 status = PFVF_STATUS_SUCCESS;
2610 out:
2611         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_RXQS,
2612                              length, status);
2613 }
2614
2615 static void qed_iov_vf_mbx_stop_txqs(struct qed_hwfn *p_hwfn,
2616                                      struct qed_ptt *p_ptt,
2617                                      struct qed_vf_info *vf)
2618 {
2619         u16 length = sizeof(struct pfvf_def_resp_tlv);
2620         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2621         u8 status = PFVF_STATUS_FAILURE;
2622         struct vfpf_stop_txqs_tlv *req;
2623         u8 qid_usage_idx;
2624         int rc;
2625
2626         /* There has never been an official driver that used this interface
2627          * for stopping multiple queues, and it is now considered deprecated.
2628          * Validate this isn't used here.
2629          */
2630         req = &mbx->req_virt->stop_txqs;
2631         if (req->num_txqs != 1) {
2632                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2633                            "Odd; VF[%d] tried stopping multiple Tx queues\n",
2634                            vf->relative_vf_id);
2635                 status = PFVF_STATUS_NOT_SUPPORTED;
2636                 goto out;
2637         }
2638
2639         /* Find which qid-index is associated with the queue */
2640         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, true);
2641         if (qid_usage_idx == QED_IOV_QID_INVALID)
2642                 goto out;
2643
2644         rc = qed_iov_vf_stop_txqs(p_hwfn, vf, req->tx_qid, qid_usage_idx);
2645         if (!rc)
2646                 status = PFVF_STATUS_SUCCESS;
2647
2648 out:
2649         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_STOP_TXQS,
2650                              length, status);
2651 }
2652
2653 static void qed_iov_vf_mbx_update_rxqs(struct qed_hwfn *p_hwfn,
2654                                        struct qed_ptt *p_ptt,
2655                                        struct qed_vf_info *vf)
2656 {
2657         struct qed_queue_cid *handlers[QED_MAX_VF_CHAINS_PER_PF];
2658         u16 length = sizeof(struct pfvf_def_resp_tlv);
2659         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
2660         struct vfpf_update_rxq_tlv *req;
2661         u8 status = PFVF_STATUS_FAILURE;
2662         u8 complete_event_flg;
2663         u8 complete_cqe_flg;
2664         u8 qid_usage_idx;
2665         int rc;
2666         u8 i;
2667
2668         req = &mbx->req_virt->update_rxq;
2669         complete_cqe_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_CQE_FLAG);
2670         complete_event_flg = !!(req->flags & VFPF_RXQ_UPD_COMPLETE_EVENT_FLAG);
2671
2672         qid_usage_idx = qed_iov_vf_mbx_qid(p_hwfn, vf, false);
2673         if (qid_usage_idx == QED_IOV_QID_INVALID)
2674                 goto out;
2675
2676         /* There shouldn't exist a VF that uses queue-qids yet uses this
2677          * API with multiple Rx queues. Validate this.
2678          */
2679         if ((vf->acquire.vfdev_info.capabilities &
2680              VFPF_ACQUIRE_CAP_QUEUE_QIDS) && req->num_rxqs != 1) {
2681                 DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2682                            "VF[%d] supports QIDs but sends multiple queues\n",
2683                            vf->relative_vf_id);
2684                 goto out;
2685         }
2686
2687         /* Validate inputs - for the legacy case this is still true since
2688          * qid_usage_idx for each Rx queue would be LEGACY_QID_RX.
2689          */
2690         for (i = req->rx_qid; i < req->rx_qid + req->num_rxqs; i++) {
2691                 if (!qed_iov_validate_rxq(p_hwfn, vf, i,
2692                                           QED_IOV_VALIDATE_Q_NA) ||
2693                     !vf->vf_queues[i].cids[qid_usage_idx].p_cid ||
2694                     vf->vf_queues[i].cids[qid_usage_idx].b_is_tx) {
2695                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2696                                    "VF[%d]: Incorrect Rxqs [%04x, %02x]\n",
2697                                    vf->relative_vf_id, req->rx_qid,
2698                                    req->num_rxqs);
2699                         goto out;
2700                 }
2701         }
2702
2703         /* Prepare the handlers */
2704         for (i = 0; i < req->num_rxqs; i++) {
2705                 u16 qid = req->rx_qid + i;
2706
2707                 handlers[i] = vf->vf_queues[qid].cids[qid_usage_idx].p_cid;
2708         }
2709
2710         rc = qed_sp_eth_rx_queues_update(p_hwfn, (void **)&handlers,
2711                                          req->num_rxqs,
2712                                          complete_cqe_flg,
2713                                          complete_event_flg,
2714                                          QED_SPQ_MODE_EBLOCK, NULL);
2715         if (rc)
2716                 goto out;
2717
2718         status = PFVF_STATUS_SUCCESS;
2719 out:
2720         qed_iov_prepare_resp(p_hwfn, p_ptt, vf, CHANNEL_TLV_UPDATE_RXQ,
2721                              length, status);
2722 }
2723
2724 void *qed_iov_search_list_tlvs(struct qed_hwfn *p_hwfn,
2725                                void *p_tlvs_list, u16 req_type)
2726 {
2727         struct channel_tlv *p_tlv = (struct channel_tlv *)p_tlvs_list;
2728         int len = 0;
2729
2730         do {
2731                 if (!p_tlv->length) {
2732                         DP_NOTICE(p_hwfn, "Zero length TLV found\n");
2733                         return NULL;
2734                 }
2735
2736                 if (p_tlv->type == req_type) {
2737                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2738                                    "Extended tlv type %d, length %d found\n",
2739                                    p_tlv->type, p_tlv->length);
2740                         return p_tlv;
2741                 }
2742
2743                 len += p_tlv->length;
2744                 p_tlv = (struct channel_tlv *)((u8 *)p_tlv + p_tlv->length);
2745
2746                 if ((len + p_tlv->length) > TLV_BUFFER_SIZE) {
2747                         DP_NOTICE(p_hwfn, "TLVs has overrun the buffer size\n");
2748                         return NULL;
2749                 }
2750         } while (p_tlv->type != CHANNEL_TLV_LIST_END);
2751
2752         return NULL;
2753 }
2754
2755 static void
2756 qed_iov_vp_update_act_param(struct qed_hwfn *p_hwfn,
2757                             struct qed_sp_vport_update_params *p_data,
2758                             struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2759 {
2760         struct vfpf_vport_update_activate_tlv *p_act_tlv;
2761         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACTIVATE;
2762
2763         p_act_tlv = (struct vfpf_vport_update_activate_tlv *)
2764                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2765         if (!p_act_tlv)
2766                 return;
2767
2768         p_data->update_vport_active_rx_flg = p_act_tlv->update_rx;
2769         p_data->vport_active_rx_flg = p_act_tlv->active_rx;
2770         p_data->update_vport_active_tx_flg = p_act_tlv->update_tx;
2771         p_data->vport_active_tx_flg = p_act_tlv->active_tx;
2772         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACTIVATE;
2773 }
2774
2775 static void
2776 qed_iov_vp_update_vlan_param(struct qed_hwfn *p_hwfn,
2777                              struct qed_sp_vport_update_params *p_data,
2778                              struct qed_vf_info *p_vf,
2779                              struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2780 {
2781         struct vfpf_vport_update_vlan_strip_tlv *p_vlan_tlv;
2782         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_VLAN_STRIP;
2783
2784         p_vlan_tlv = (struct vfpf_vport_update_vlan_strip_tlv *)
2785                      qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2786         if (!p_vlan_tlv)
2787                 return;
2788
2789         p_vf->shadow_config.inner_vlan_removal = p_vlan_tlv->remove_vlan;
2790
2791         /* Ignore the VF request if we're forcing a vlan */
2792         if (!(p_vf->configured_features & BIT(VLAN_ADDR_FORCED))) {
2793                 p_data->update_inner_vlan_removal_flg = 1;
2794                 p_data->inner_vlan_removal_flg = p_vlan_tlv->remove_vlan;
2795         }
2796
2797         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_VLAN_STRIP;
2798 }
2799
2800 static void
2801 qed_iov_vp_update_tx_switch(struct qed_hwfn *p_hwfn,
2802                             struct qed_sp_vport_update_params *p_data,
2803                             struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2804 {
2805         struct vfpf_vport_update_tx_switch_tlv *p_tx_switch_tlv;
2806         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_TX_SWITCH;
2807
2808         p_tx_switch_tlv = (struct vfpf_vport_update_tx_switch_tlv *)
2809                           qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2810                                                    tlv);
2811         if (!p_tx_switch_tlv)
2812                 return;
2813
2814         p_data->update_tx_switching_flg = 1;
2815         p_data->tx_switching_flg = p_tx_switch_tlv->tx_switching;
2816         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_TX_SWITCH;
2817 }
2818
2819 static void
2820 qed_iov_vp_update_mcast_bin_param(struct qed_hwfn *p_hwfn,
2821                                   struct qed_sp_vport_update_params *p_data,
2822                                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2823 {
2824         struct vfpf_vport_update_mcast_bin_tlv *p_mcast_tlv;
2825         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_MCAST;
2826
2827         p_mcast_tlv = (struct vfpf_vport_update_mcast_bin_tlv *)
2828             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2829         if (!p_mcast_tlv)
2830                 return;
2831
2832         p_data->update_approx_mcast_flg = 1;
2833         memcpy(p_data->bins, p_mcast_tlv->bins,
2834                sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
2835         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_MCAST;
2836 }
2837
2838 static void
2839 qed_iov_vp_update_accept_flag(struct qed_hwfn *p_hwfn,
2840                               struct qed_sp_vport_update_params *p_data,
2841                               struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2842 {
2843         struct qed_filter_accept_flags *p_flags = &p_data->accept_flags;
2844         struct vfpf_vport_update_accept_param_tlv *p_accept_tlv;
2845         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_PARAM;
2846
2847         p_accept_tlv = (struct vfpf_vport_update_accept_param_tlv *)
2848             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2849         if (!p_accept_tlv)
2850                 return;
2851
2852         p_flags->update_rx_mode_config = p_accept_tlv->update_rx_mode;
2853         p_flags->rx_accept_filter = p_accept_tlv->rx_accept_filter;
2854         p_flags->update_tx_mode_config = p_accept_tlv->update_tx_mode;
2855         p_flags->tx_accept_filter = p_accept_tlv->tx_accept_filter;
2856         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_PARAM;
2857 }
2858
2859 static void
2860 qed_iov_vp_update_accept_any_vlan(struct qed_hwfn *p_hwfn,
2861                                   struct qed_sp_vport_update_params *p_data,
2862                                   struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2863 {
2864         struct vfpf_vport_update_accept_any_vlan_tlv *p_accept_any_vlan;
2865         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_ACCEPT_ANY_VLAN;
2866
2867         p_accept_any_vlan = (struct vfpf_vport_update_accept_any_vlan_tlv *)
2868                             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt,
2869                                                      tlv);
2870         if (!p_accept_any_vlan)
2871                 return;
2872
2873         p_data->accept_any_vlan = p_accept_any_vlan->accept_any_vlan;
2874         p_data->update_accept_any_vlan_flg =
2875                     p_accept_any_vlan->update_accept_any_vlan_flg;
2876         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_ACCEPT_ANY_VLAN;
2877 }
2878
2879 static void
2880 qed_iov_vp_update_rss_param(struct qed_hwfn *p_hwfn,
2881                             struct qed_vf_info *vf,
2882                             struct qed_sp_vport_update_params *p_data,
2883                             struct qed_rss_params *p_rss,
2884                             struct qed_iov_vf_mbx *p_mbx,
2885                             u16 *tlvs_mask, u16 *tlvs_accepted)
2886 {
2887         struct vfpf_vport_update_rss_tlv *p_rss_tlv;
2888         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_RSS;
2889         bool b_reject = false;
2890         u16 table_size;
2891         u16 i, q_idx;
2892
2893         p_rss_tlv = (struct vfpf_vport_update_rss_tlv *)
2894                     qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2895         if (!p_rss_tlv) {
2896                 p_data->rss_params = NULL;
2897                 return;
2898         }
2899
2900         memset(p_rss, 0, sizeof(struct qed_rss_params));
2901
2902         p_rss->update_rss_config = !!(p_rss_tlv->update_rss_flags &
2903                                       VFPF_UPDATE_RSS_CONFIG_FLAG);
2904         p_rss->update_rss_capabilities = !!(p_rss_tlv->update_rss_flags &
2905                                             VFPF_UPDATE_RSS_CAPS_FLAG);
2906         p_rss->update_rss_ind_table = !!(p_rss_tlv->update_rss_flags &
2907                                          VFPF_UPDATE_RSS_IND_TABLE_FLAG);
2908         p_rss->update_rss_key = !!(p_rss_tlv->update_rss_flags &
2909                                    VFPF_UPDATE_RSS_KEY_FLAG);
2910
2911         p_rss->rss_enable = p_rss_tlv->rss_enable;
2912         p_rss->rss_eng_id = vf->relative_vf_id + 1;
2913         p_rss->rss_caps = p_rss_tlv->rss_caps;
2914         p_rss->rss_table_size_log = p_rss_tlv->rss_table_size_log;
2915         memcpy(p_rss->rss_key, p_rss_tlv->rss_key, sizeof(p_rss->rss_key));
2916
2917         table_size = min_t(u16, ARRAY_SIZE(p_rss->rss_ind_table),
2918                            (1 << p_rss_tlv->rss_table_size_log));
2919
2920         for (i = 0; i < table_size; i++) {
2921                 struct qed_queue_cid *p_cid;
2922
2923                 q_idx = p_rss_tlv->rss_ind_table[i];
2924                 if (!qed_iov_validate_rxq(p_hwfn, vf, q_idx,
2925                                           QED_IOV_VALIDATE_Q_ENABLE)) {
2926                         DP_VERBOSE(p_hwfn,
2927                                    QED_MSG_IOV,
2928                                    "VF[%d]: Omitting RSS due to wrong queue %04x\n",
2929                                    vf->relative_vf_id, q_idx);
2930                         b_reject = true;
2931                         goto out;
2932                 }
2933
2934                 p_cid = qed_iov_get_vf_rx_queue_cid(&vf->vf_queues[q_idx]);
2935                 p_rss->rss_ind_table[i] = p_cid;
2936         }
2937
2938         p_data->rss_params = p_rss;
2939 out:
2940         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_RSS;
2941         if (!b_reject)
2942                 *tlvs_accepted |= 1 << QED_IOV_VP_UPDATE_RSS;
2943 }
2944
2945 static void
2946 qed_iov_vp_update_sge_tpa_param(struct qed_hwfn *p_hwfn,
2947                                 struct qed_vf_info *vf,
2948                                 struct qed_sp_vport_update_params *p_data,
2949                                 struct qed_sge_tpa_params *p_sge_tpa,
2950                                 struct qed_iov_vf_mbx *p_mbx, u16 *tlvs_mask)
2951 {
2952         struct vfpf_vport_update_sge_tpa_tlv *p_sge_tpa_tlv;
2953         u16 tlv = CHANNEL_TLV_VPORT_UPDATE_SGE_TPA;
2954
2955         p_sge_tpa_tlv = (struct vfpf_vport_update_sge_tpa_tlv *)
2956             qed_iov_search_list_tlvs(p_hwfn, p_mbx->req_virt, tlv);
2957
2958         if (!p_sge_tpa_tlv) {
2959                 p_data->sge_tpa_params = NULL;
2960                 return;
2961         }
2962
2963         memset(p_sge_tpa, 0, sizeof(struct qed_sge_tpa_params));
2964
2965         p_sge_tpa->update_tpa_en_flg =
2966             !!(p_sge_tpa_tlv->update_sge_tpa_flags & VFPF_UPDATE_TPA_EN_FLAG);
2967         p_sge_tpa->update_tpa_param_flg =
2968             !!(p_sge_tpa_tlv->update_sge_tpa_flags &
2969                 VFPF_UPDATE_TPA_PARAM_FLAG);
2970
2971         p_sge_tpa->tpa_ipv4_en_flg =
2972             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_IPV4_EN_FLAG);
2973         p_sge_tpa->tpa_ipv6_en_flg =
2974             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_IPV6_EN_FLAG);
2975         p_sge_tpa->tpa_pkt_split_flg =
2976             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_PKT_SPLIT_FLAG);
2977         p_sge_tpa->tpa_hdr_data_split_flg =
2978             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_HDR_DATA_SPLIT_FLAG);
2979         p_sge_tpa->tpa_gro_consistent_flg =
2980             !!(p_sge_tpa_tlv->sge_tpa_flags & VFPF_TPA_GRO_CONSIST_FLAG);
2981
2982         p_sge_tpa->tpa_max_aggs_num = p_sge_tpa_tlv->tpa_max_aggs_num;
2983         p_sge_tpa->tpa_max_size = p_sge_tpa_tlv->tpa_max_size;
2984         p_sge_tpa->tpa_min_size_to_start = p_sge_tpa_tlv->tpa_min_size_to_start;
2985         p_sge_tpa->tpa_min_size_to_cont = p_sge_tpa_tlv->tpa_min_size_to_cont;
2986         p_sge_tpa->max_buffers_per_cqe = p_sge_tpa_tlv->max_buffers_per_cqe;
2987
2988         p_data->sge_tpa_params = p_sge_tpa;
2989
2990         *tlvs_mask |= 1 << QED_IOV_VP_UPDATE_SGE_TPA;
2991 }
2992
2993 static int qed_iov_pre_update_vport(struct qed_hwfn *hwfn,
2994                                     u8 vfid,
2995                                     struct qed_sp_vport_update_params *params,
2996                                     u16 *tlvs)
2997 {
2998         u8 mask = QED_ACCEPT_UCAST_UNMATCHED | QED_ACCEPT_MCAST_UNMATCHED;
2999         struct qed_filter_accept_flags *flags = &params->accept_flags;
3000         struct qed_public_vf_info *vf_info;
3001
3002         /* Untrusted VFs can't even be trusted to know that fact.
3003          * Simply indicate everything is configured fine, and trace
3004          * configuration 'behind their back'.
3005          */
3006         if (!(*tlvs & BIT(QED_IOV_VP_UPDATE_ACCEPT_PARAM)))
3007                 return 0;
3008
3009         vf_info = qed_iov_get_public_vf_info(hwfn, vfid, true);
3010
3011         if (flags->update_rx_mode_config) {
3012                 vf_info->rx_accept_mode = flags->rx_accept_filter;
3013                 if (!vf_info->is_trusted_configured)
3014                         flags->rx_accept_filter &= ~mask;
3015         }
3016
3017         if (flags->update_tx_mode_config) {
3018                 vf_info->tx_accept_mode = flags->tx_accept_filter;
3019                 if (!vf_info->is_trusted_configured)
3020                         flags->tx_accept_filter &= ~mask;
3021         }
3022
3023         return 0;
3024 }
3025
3026 static void qed_iov_vf_mbx_vport_update(struct qed_hwfn *p_hwfn,
3027                                         struct qed_ptt *p_ptt,
3028                                         struct qed_vf_info *vf)
3029 {
3030         struct qed_rss_params *p_rss_params = NULL;
3031         struct qed_sp_vport_update_params params;
3032         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3033         struct qed_sge_tpa_params sge_tpa_params;
3034         u16 tlvs_mask = 0, tlvs_accepted = 0;
3035         u8 status = PFVF_STATUS_SUCCESS;
3036         u16 length;
3037         int rc;
3038
3039         /* Valiate PF can send such a request */
3040         if (!vf->vport_instance) {
3041                 DP_VERBOSE(p_hwfn,
3042                            QED_MSG_IOV,
3043                            "No VPORT instance available for VF[%d], failing vport update\n",
3044                            vf->abs_vf_id);
3045                 status = PFVF_STATUS_FAILURE;
3046                 goto out;
3047         }
3048         p_rss_params = vzalloc(sizeof(*p_rss_params));
3049         if (p_rss_params == NULL) {
3050                 status = PFVF_STATUS_FAILURE;
3051                 goto out;
3052         }
3053
3054         memset(&params, 0, sizeof(params));
3055         params.opaque_fid = vf->opaque_fid;
3056         params.vport_id = vf->vport_id;
3057         params.rss_params = NULL;
3058
3059         /* Search for extended tlvs list and update values
3060          * from VF in struct qed_sp_vport_update_params.
3061          */
3062         qed_iov_vp_update_act_param(p_hwfn, &params, mbx, &tlvs_mask);
3063         qed_iov_vp_update_vlan_param(p_hwfn, &params, vf, mbx, &tlvs_mask);
3064         qed_iov_vp_update_tx_switch(p_hwfn, &params, mbx, &tlvs_mask);
3065         qed_iov_vp_update_mcast_bin_param(p_hwfn, &params, mbx, &tlvs_mask);
3066         qed_iov_vp_update_accept_flag(p_hwfn, &params, mbx, &tlvs_mask);
3067         qed_iov_vp_update_accept_any_vlan(p_hwfn, &params, mbx, &tlvs_mask);
3068         qed_iov_vp_update_sge_tpa_param(p_hwfn, vf, &params,
3069                                         &sge_tpa_params, mbx, &tlvs_mask);
3070
3071         tlvs_accepted = tlvs_mask;
3072
3073         /* Some of the extended TLVs need to be validated first; In that case,
3074          * they can update the mask without updating the accepted [so that
3075          * PF could communicate to VF it has rejected request].
3076          */
3077         qed_iov_vp_update_rss_param(p_hwfn, vf, &params, p_rss_params,
3078                                     mbx, &tlvs_mask, &tlvs_accepted);
3079
3080         if (qed_iov_pre_update_vport(p_hwfn, vf->relative_vf_id,
3081                                      &params, &tlvs_accepted)) {
3082                 tlvs_accepted = 0;
3083                 status = PFVF_STATUS_NOT_SUPPORTED;
3084                 goto out;
3085         }
3086
3087         if (!tlvs_accepted) {
3088                 if (tlvs_mask)
3089                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3090                                    "Upper-layer prevents VF vport configuration\n");
3091                 else
3092                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3093                                    "No feature tlvs found for vport update\n");
3094                 status = PFVF_STATUS_NOT_SUPPORTED;
3095                 goto out;
3096         }
3097
3098         rc = qed_sp_vport_update(p_hwfn, &params, QED_SPQ_MODE_EBLOCK, NULL);
3099
3100         if (rc)
3101                 status = PFVF_STATUS_FAILURE;
3102
3103 out:
3104         vfree(p_rss_params);
3105         length = qed_iov_prep_vp_update_resp_tlvs(p_hwfn, vf, mbx, status,
3106                                                   tlvs_mask, tlvs_accepted);
3107         qed_iov_send_response(p_hwfn, p_ptt, vf, length, status);
3108 }
3109
3110 static int qed_iov_vf_update_vlan_shadow(struct qed_hwfn *p_hwfn,
3111                                          struct qed_vf_info *p_vf,
3112                                          struct qed_filter_ucast *p_params)
3113 {
3114         int i;
3115
3116         /* First remove entries and then add new ones */
3117         if (p_params->opcode == QED_FILTER_REMOVE) {
3118                 for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++)
3119                         if (p_vf->shadow_config.vlans[i].used &&
3120                             p_vf->shadow_config.vlans[i].vid ==
3121                             p_params->vlan) {
3122                                 p_vf->shadow_config.vlans[i].used = false;
3123                                 break;
3124                         }
3125                 if (i == QED_ETH_VF_NUM_VLAN_FILTERS + 1) {
3126                         DP_VERBOSE(p_hwfn,
3127                                    QED_MSG_IOV,
3128                                    "VF [%d] - Tries to remove a non-existing vlan\n",
3129                                    p_vf->relative_vf_id);
3130                         return -EINVAL;
3131                 }
3132         } else if (p_params->opcode == QED_FILTER_REPLACE ||
3133                    p_params->opcode == QED_FILTER_FLUSH) {
3134                 for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++)
3135                         p_vf->shadow_config.vlans[i].used = false;
3136         }
3137
3138         /* In forced mode, we're willing to remove entries - but we don't add
3139          * new ones.
3140          */
3141         if (p_vf->bulletin.p_virt->valid_bitmap & BIT(VLAN_ADDR_FORCED))
3142                 return 0;
3143
3144         if (p_params->opcode == QED_FILTER_ADD ||
3145             p_params->opcode == QED_FILTER_REPLACE) {
3146                 for (i = 0; i < QED_ETH_VF_NUM_VLAN_FILTERS + 1; i++) {
3147                         if (p_vf->shadow_config.vlans[i].used)
3148                                 continue;
3149
3150                         p_vf->shadow_config.vlans[i].used = true;
3151                         p_vf->shadow_config.vlans[i].vid = p_params->vlan;
3152                         break;
3153                 }
3154
3155                 if (i == QED_ETH_VF_NUM_VLAN_FILTERS + 1) {
3156                         DP_VERBOSE(p_hwfn,
3157                                    QED_MSG_IOV,
3158                                    "VF [%d] - Tries to configure more than %d vlan filters\n",
3159                                    p_vf->relative_vf_id,
3160                                    QED_ETH_VF_NUM_VLAN_FILTERS + 1);
3161                         return -EINVAL;
3162                 }
3163         }
3164
3165         return 0;
3166 }
3167
3168 static int qed_iov_vf_update_mac_shadow(struct qed_hwfn *p_hwfn,
3169                                         struct qed_vf_info *p_vf,
3170                                         struct qed_filter_ucast *p_params)
3171 {
3172         int i;
3173
3174         /* If we're in forced-mode, we don't allow any change */
3175         if (p_vf->bulletin.p_virt->valid_bitmap & BIT(MAC_ADDR_FORCED))
3176                 return 0;
3177
3178         /* Don't keep track of shadow copy since we don't intend to restore. */
3179         if (p_vf->p_vf_info.is_trusted_configured)
3180                 return 0;
3181
3182         /* First remove entries and then add new ones */
3183         if (p_params->opcode == QED_FILTER_REMOVE) {
3184                 for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
3185                         if (ether_addr_equal(p_vf->shadow_config.macs[i],
3186                                              p_params->mac)) {
3187                                 eth_zero_addr(p_vf->shadow_config.macs[i]);
3188                                 break;
3189                         }
3190                 }
3191
3192                 if (i == QED_ETH_VF_NUM_MAC_FILTERS) {
3193                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3194                                    "MAC isn't configured\n");
3195                         return -EINVAL;
3196                 }
3197         } else if (p_params->opcode == QED_FILTER_REPLACE ||
3198                    p_params->opcode == QED_FILTER_FLUSH) {
3199                 for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++)
3200                         eth_zero_addr(p_vf->shadow_config.macs[i]);
3201         }
3202
3203         /* List the new MAC address */
3204         if (p_params->opcode != QED_FILTER_ADD &&
3205             p_params->opcode != QED_FILTER_REPLACE)
3206                 return 0;
3207
3208         for (i = 0; i < QED_ETH_VF_NUM_MAC_FILTERS; i++) {
3209                 if (is_zero_ether_addr(p_vf->shadow_config.macs[i])) {
3210                         ether_addr_copy(p_vf->shadow_config.macs[i],
3211                                         p_params->mac);
3212                         DP_VERBOSE(p_hwfn, QED_MSG_IOV,
3213                                    "Added MAC at %d entry in shadow\n", i);
3214                         break;
3215                 }
3216         }
3217
3218         if (i == QED_ETH_VF_NUM_MAC_FILTERS) {
3219                 DP_VERBOSE(p_hwfn, QED_MSG_IOV, "No available place for MAC\n");
3220                 return -EINVAL;
3221         }
3222
3223         return 0;
3224 }
3225
3226 static int
3227 qed_iov_vf_update_unicast_shadow(struct qed_hwfn *p_hwfn,
3228                                  struct qed_vf_info *p_vf,
3229                                  struct qed_filter_ucast *p_params)
3230 {
3231         int rc = 0;
3232
3233         if (p_params->type == QED_FILTER_MAC) {
3234                 rc = qed_iov_vf_update_mac_shadow(p_hwfn, p_vf, p_params);
3235                 if (rc)
3236                         return rc;
3237         }
3238
3239         if (p_params->type == QED_FILTER_VLAN)
3240                 rc = qed_iov_vf_update_vlan_shadow(p_hwfn, p_vf, p_params);
3241
3242         return rc;
3243 }
3244
3245 static int qed_iov_chk_ucast(struct qed_hwfn *hwfn,
3246                              int vfid, struct qed_filter_ucast *params)
3247 {
3248         struct qed_public_vf_info *vf;
3249
3250         vf = qed_iov_get_public_vf_info(hwfn, vfid, true);
3251         if (!vf)
3252                 return -EINVAL;
3253
3254         /* No real decision to make; Store the configured MAC */
3255         if (params->type == QED_FILTER_MAC ||
3256             params->type == QED_FILTER_MAC_VLAN) {
3257                 ether_addr_copy(vf->mac, params->mac);
3258
3259                 if (vf->is_trusted_configured) {
3260                         qed_iov_bulletin_set_mac(hwfn, vf->mac, vfid);
3261
3262                         /* Update and post bulleitin again */
3263                         qed_schedule_iov(hwfn, QED_IOV_WQ_BULLETIN_UPDATE_FLAG);
3264                 }
3265         }
3266
3267         return 0;
3268 }
3269
3270 static void qed_iov_vf_mbx_ucast_filter(struct qed_hwfn *p_hwfn,
3271                                         struct qed_ptt *p_ptt,
3272                                         struct qed_vf_info *vf)
3273 {
3274         struct qed_bulletin_content *p_bulletin = vf->bulletin.p_virt;
3275         struct qed_iov_vf_mbx *mbx = &vf->vf_mbx;
3276         struct vfpf_ucast_filter_tlv *req;
3277         u8 status = PFVF_STATUS_SUCCESS;
3278         struct qed_filter_ucast params;
3279         int rc;
3280
3281         /* Prepare the unicast filter params */
3282         memset(&params, 0, sizeof(struct qed_filter_ucast));
3283         req = &mbx->req_virt->ucast_filter;
3284         params.opcode = (enum qed_filter_opcode)req->opcode;
3285         params.type = (enum qed_filter_ucast_type)req->type;
3286
3287         params.is_rx_filter = 1;
3288         params.is_tx_filter = 1;
3289         params.vport_to_remove_from = vf->vport_id;
3290         params.vport_to_add_to = vf->vport_id;
3291         memcpy(params.mac, req->mac, ETH_ALEN);
3292         params.vlan = req->vlan;
3293
3294         DP_VERBOSE(p_hwfn,
3295                    QED_MSG_IOV,
3296                    "VF[%d]: opcode 0x%02x type 0x%02x [%s %s] [vport 0x%02x] MAC %02x:%02x:%02x:%02x:%02x:%02x, vlan 0x%04x\n",
3297                    vf->abs_vf_id, params.opcode, params.type,
3298                    params.is_rx_filter ? "RX" : "",
3299                    params.is_tx_filter ? "TX" : "",
3300                    params.vport_to_add_to,
3301                    params.mac[0], params.mac[1],
3302                    params.mac[2], params.mac[3],
3303                    params.mac[4], params.mac[5], params.vlan);
3304
3305         if (!vf->vport_instance) {
3306                 DP_VERBOSE(p_hwfn,
3307                            QED_MSG_IOV,
3308                            "No VPORT instance available for VF[%d], failing ucast MAC configuration\n",
3309                            vf->abs_vf_id);
3310                 status = PFVF_STATUS_FAILURE;
3311                 goto out;
3312         }
3313
3314         /* Update shadow copy of the VF configuration */
3315         if (qed_iov_vf_update_unicast_shadow(p_hwfn, vf, &params)) {
3316                 status = PFVF_STATUS_FAILURE;
3317                 goto out;
3318         }
3319
3320         /* Determine if the unicast filtering is acceptible by PF */
3321         if ((p_bulletin->valid_bitmap & BIT(VLAN_ADDR_FORCED)) &&
3322             (params.type == QED_FILTER_VLAN ||
3323              params.type == QED_FILTER_MAC_VLAN)) {
3324                 /* Once VLAN is forced or PVID is set, do not allow
3325                  * to add/replace any further VLANs.
3326                  */
3327                 if (params.opcode == QED_FILTER_ADD ||
3328                     params.opcode == QED_FILTER_REPLACE)
3329                         status = PFVF_STATUS_FORCED;
3330                 goto out;
3331         }
3332
3333         if ((p_bulletin->valid_bitmap & BIT(MAC_ADDR_FORCED)) &&
3334             (params.type == QED_FILTER_MAC ||
3335              params.type == QED_FILTER_MAC_VLAN)) {
3336                 if (!ether_addr_equal(p_bulletin->mac, params.mac) ||
3337                     (params.opcode != QED_FILTER_ADD &&
3338                      params.opcode != QED_FILTER_REPLACE))
3339                         status = PFVF_STATUS_FORCED;
3340                 goto out;
3341         }
3342
3343         rc = qed_iov_chk_ucast(p_hwfn, vf->relative_vf_id, &params);
3344         if (rc) {
3345                 status = PFVF_STATUS_FAILURE;
3346                 goto out;
3347         }
3348
3349         rc = qed_sp_eth_filter_ucast(p_hwfn, vf->opaque_fid, &params,
3350                                      QED_SPQ_MODE_CB, NULL);
3351         if (rc)