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bnxt_en: Add PHY retry logic.
[linux-2.6-block.git] / drivers / net / ethernet / broadcom / bnxt / bnxt_sriov.c
CommitLineData
c0c050c5
MC		 1/* Broadcom NetXtreme-C/E network driver.
2 *
11f15ed3 3 * Copyright (c) 2014-2016 Broadcom Corporation
746df139 4 * Copyright (c) 2016-2018 Broadcom Limited
c0c050c5
MC		 5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation.
9 */
10
11#include <linux/module.h>
12#include <linux/pci.h>
13#include <linux/netdevice.h>
14#include <linux/if_vlan.h>
15#include <linux/interrupt.h>
16#include <linux/etherdevice.h>
17#include "bnxt_hsi.h"
18#include "bnxt.h"
2f593846 19#include "bnxt_ulp.h"
c0c050c5 20#include "bnxt_sriov.h"
4ab0c6a8 21#include "bnxt_vfr.h"
c0c050c5
MC		 22#include "bnxt_ethtool.h"
23
24#ifdef CONFIG_BNXT_SRIOV
350a7149
EW		 25static int bnxt_hwrm_fwd_async_event_cmpl(struct bnxt *bp,
26 struct bnxt_vf_info *vf, u16 event_id)
27{
28 struct hwrm_fwd_async_event_cmpl_output *resp = bp->hwrm_cmd_resp_addr;
29 struct hwrm_fwd_async_event_cmpl_input req = {0};
30 struct hwrm_async_event_cmpl *async_cmpl;
31 int rc = 0;
32
33 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FWD_ASYNC_EVENT_CMPL, -1, -1);
34 if (vf)
35 req.encap_async_event_target_id = cpu_to_le16(vf->fw_fid);
36 else
37 /* broadcast this async event to all VFs */
38 req.encap_async_event_target_id = cpu_to_le16(0xffff);
39 async_cmpl = (struct hwrm_async_event_cmpl *)req.encap_async_event_cmpl;
87c374de 40 async_cmpl->type = cpu_to_le16(ASYNC_EVENT_CMPL_TYPE_HWRM_ASYNC_EVENT);
350a7149
EW		 41 async_cmpl->event_id = cpu_to_le16(event_id);
42
43 mutex_lock(&bp->hwrm_cmd_lock);
44 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
45
46 if (rc) {
47 netdev_err(bp->dev, "hwrm_fwd_async_event_cmpl failed. rc:%d\n",
48 rc);
49 goto fwd_async_event_cmpl_exit;
50 }
51
52 if (resp->error_code) {
53 netdev_err(bp->dev, "hwrm_fwd_async_event_cmpl error %d\n",
54 resp->error_code);
55 rc = -1;
56 }
57
58fwd_async_event_cmpl_exit:
59 mutex_unlock(&bp->hwrm_cmd_lock);
60 return rc;
61}
62
c0c050c5
MC		 63static int bnxt_vf_ndo_prep(struct bnxt *bp, int vf_id)
64{
caefe526 65 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) {
c0c050c5
MC		 66 netdev_err(bp->dev, "vf ndo called though PF is down\n");
67 return -EINVAL;
68 }
69 if (!bp->pf.active_vfs) {
70 netdev_err(bp->dev, "vf ndo called though sriov is disabled\n");
71 return -EINVAL;
72 }
78f30004 73 if (vf_id >= bp->pf.active_vfs) {
c0c050c5
MC		 74 netdev_err(bp->dev, "Invalid VF id %d\n", vf_id);
75 return -EINVAL;
76 }
77 return 0;
78}
79
80int bnxt_set_vf_spoofchk(struct net_device *dev, int vf_id, bool setting)
81{
82 struct hwrm_func_cfg_input req = {0};
83 struct bnxt *bp = netdev_priv(dev);
84 struct bnxt_vf_info *vf;
85 bool old_setting = false;
86 u32 func_flags;
87 int rc;
88
8eb992e8
MC		 89 if (bp->hwrm_spec_code < 0x10701)
90 return -ENOTSUPP;
91
c0c050c5
MC		 92 rc = bnxt_vf_ndo_prep(bp, vf_id);
93 if (rc)
94 return rc;
95
96 vf = &bp->pf.vf[vf_id];
97 if (vf->flags & BNXT_VF_SPOOFCHK)
98 old_setting = true;
99 if (old_setting == setting)
100 return 0;
101
102 func_flags = vf->func_flags;
103 if (setting)
8eb992e8 104 func_flags |= FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_ENABLE;
c0c050c5 105 else
8eb992e8 106 func_flags |= FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_DISABLE;
c0c050c5
MC		 107 /*TODO: if the driver supports VLAN filter on guest VLAN,
108 * the spoof check should also include vlan anti-spoofing
109 */
110 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 111 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 112 req.flags = cpu_to_le32(func_flags);
113 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
114 if (!rc) {
115 vf->func_flags = func_flags;
116 if (setting)
117 vf->flags |= BNXT_VF_SPOOFCHK;
118 else
119 vf->flags &= ~BNXT_VF_SPOOFCHK;
120 }
121 return rc;
122}
123
746df139
VV		 124int bnxt_set_vf_trust(struct net_device *dev, int vf_id, bool trusted)
125{
126 struct bnxt *bp = netdev_priv(dev);
127 struct bnxt_vf_info *vf;
128
129 if (bnxt_vf_ndo_prep(bp, vf_id))
130 return -EINVAL;
131
132 vf = &bp->pf.vf[vf_id];
133 if (trusted)
134 vf->flags |= BNXT_VF_TRUST;
135 else
136 vf->flags &= ~BNXT_VF_TRUST;
137
138 return 0;
139}
140
c0c050c5
MC		 141int bnxt_get_vf_config(struct net_device *dev, int vf_id,
142 struct ifla_vf_info *ivi)
143{
144 struct bnxt *bp = netdev_priv(dev);
145 struct bnxt_vf_info *vf;
146 int rc;
147
148 rc = bnxt_vf_ndo_prep(bp, vf_id);
149 if (rc)
150 return rc;
151
152 ivi->vf = vf_id;
153 vf = &bp->pf.vf[vf_id];
154
91cdda40
VV		 155 if (is_valid_ether_addr(vf->mac_addr))
156 memcpy(&ivi->mac, vf->mac_addr, ETH_ALEN);
157 else
158 memcpy(&ivi->mac, vf->vf_mac_addr, ETH_ALEN);
c0c050c5
MC		 159 ivi->max_tx_rate = vf->max_tx_rate;
160 ivi->min_tx_rate = vf->min_tx_rate;
161 ivi->vlan = vf->vlan;
f0249056
MC		 162 if (vf->flags & BNXT_VF_QOS)
163 ivi->qos = vf->vlan >> VLAN_PRIO_SHIFT;
164 else
165 ivi->qos = 0;
166 ivi->spoofchk = !!(vf->flags & BNXT_VF_SPOOFCHK);
746df139 167 ivi->trusted = !!(vf->flags & BNXT_VF_TRUST);
c0c050c5
MC		 168 if (!(vf->flags & BNXT_VF_LINK_FORCED))
169 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
170 else if (vf->flags & BNXT_VF_LINK_UP)
171 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
172 else
173 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
174
175 return 0;
176}
177
178int bnxt_set_vf_mac(struct net_device *dev, int vf_id, u8 *mac)
179{
180 struct hwrm_func_cfg_input req = {0};
181 struct bnxt *bp = netdev_priv(dev);
182 struct bnxt_vf_info *vf;
183 int rc;
184
185 rc = bnxt_vf_ndo_prep(bp, vf_id);
186 if (rc)
187 return rc;
188 /* reject bc or mc mac addr, zero mac addr means allow
189 * VF to use its own mac addr
190 */
191 if (is_multicast_ether_addr(mac)) {
192 netdev_err(dev, "Invalid VF ethernet address\n");
193 return -EINVAL;
194 }
195 vf = &bp->pf.vf[vf_id];
196
197 memcpy(vf->mac_addr, mac, ETH_ALEN);
198 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 199 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 200 req.flags = cpu_to_le32(vf->func_flags);
201 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_MAC_ADDR);
202 memcpy(req.dflt_mac_addr, mac, ETH_ALEN);
203 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
204}
205
79aab093
MS		 206int bnxt_set_vf_vlan(struct net_device *dev, int vf_id, u16 vlan_id, u8 qos,
207 __be16 vlan_proto)
c0c050c5
MC		 208{
209 struct hwrm_func_cfg_input req = {0};
210 struct bnxt *bp = netdev_priv(dev);
211 struct bnxt_vf_info *vf;
212 u16 vlan_tag;
213 int rc;
214
cf6645f8
MC		 215 if (bp->hwrm_spec_code < 0x10201)
216 return -ENOTSUPP;
217
79aab093
MS		 218 if (vlan_proto != htons(ETH_P_8021Q))
219 return -EPROTONOSUPPORT;
220
c0c050c5
MC		 221 rc = bnxt_vf_ndo_prep(bp, vf_id);
222 if (rc)
223 return rc;
224
225 /* TODO: needed to implement proper handling of user priority,
226 * currently fail the command if there is valid priority
227 */
228 if (vlan_id > 4095 || qos)
229 return -EINVAL;
230
231 vf = &bp->pf.vf[vf_id];
232 vlan_tag = vlan_id;
233 if (vlan_tag == vf->vlan)
234 return 0;
235
236 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 237 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 238 req.flags = cpu_to_le32(vf->func_flags);
239 req.dflt_vlan = cpu_to_le16(vlan_tag);
240 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_VLAN);
241 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
242 if (!rc)
243 vf->vlan = vlan_tag;
244 return rc;
245}
246
247int bnxt_set_vf_bw(struct net_device *dev, int vf_id, int min_tx_rate,
248 int max_tx_rate)
249{
250 struct hwrm_func_cfg_input req = {0};
251 struct bnxt *bp = netdev_priv(dev);
252 struct bnxt_vf_info *vf;
253 u32 pf_link_speed;
254 int rc;
255
256 rc = bnxt_vf_ndo_prep(bp, vf_id);
257 if (rc)
258 return rc;
259
260 vf = &bp->pf.vf[vf_id];
261 pf_link_speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);
262 if (max_tx_rate > pf_link_speed) {
263 netdev_info(bp->dev, "max tx rate %d exceed PF link speed for VF %d\n",
264 max_tx_rate, vf_id);
265 return -EINVAL;
266 }
267
268 if (min_tx_rate > pf_link_speed || min_tx_rate > max_tx_rate) {
269 netdev_info(bp->dev, "min tx rate %d is invalid for VF %d\n",
270 min_tx_rate, vf_id);
271 return -EINVAL;
272 }
273 if (min_tx_rate == vf->min_tx_rate && max_tx_rate == vf->max_tx_rate)
274 return 0;
275 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
c193554e 276 req.fid = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 277 req.flags = cpu_to_le32(vf->func_flags);
278 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MAX_BW);
279 req.max_bw = cpu_to_le32(max_tx_rate);
280 req.enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_MIN_BW);
281 req.min_bw = cpu_to_le32(min_tx_rate);
282 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
283 if (!rc) {
284 vf->min_tx_rate = min_tx_rate;
285 vf->max_tx_rate = max_tx_rate;
286 }
287 return rc;
288}
289
290int bnxt_set_vf_link_state(struct net_device *dev, int vf_id, int link)
291{
292 struct bnxt *bp = netdev_priv(dev);
293 struct bnxt_vf_info *vf;
294 int rc;
295
296 rc = bnxt_vf_ndo_prep(bp, vf_id);
297 if (rc)
298 return rc;
299
300 vf = &bp->pf.vf[vf_id];
301
302 vf->flags &= ~(BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED);
303 switch (link) {
304 case IFLA_VF_LINK_STATE_AUTO:
305 vf->flags |= BNXT_VF_LINK_UP;
306 break;
307 case IFLA_VF_LINK_STATE_DISABLE:
308 vf->flags |= BNXT_VF_LINK_FORCED;
309 break;
310 case IFLA_VF_LINK_STATE_ENABLE:
311 vf->flags |= BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED;
312 break;
313 default:
314 netdev_err(bp->dev, "Invalid link option\n");
315 rc = -EINVAL;
316 break;
317 }
350a7149
EW		 318 if (vf->flags & (BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED))
319 rc = bnxt_hwrm_fwd_async_event_cmpl(bp, vf,
87c374de 320 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE);
c0c050c5
MC		 321 return rc;
322}
323
324static int bnxt_set_vf_attr(struct bnxt *bp, int num_vfs)
325{
326 int i;
327 struct bnxt_vf_info *vf;
328
329 for (i = 0; i < num_vfs; i++) {
330 vf = &bp->pf.vf[i];
331 memset(vf, 0, sizeof(*vf));
c0c050c5
MC		 332 }
333 return 0;
334}
335
4bb6cdce 336static int bnxt_hwrm_func_vf_resource_free(struct bnxt *bp, int num_vfs)
c0c050c5
MC		 337{
338 int i, rc = 0;
339 struct bnxt_pf_info *pf = &bp->pf;
340 struct hwrm_func_vf_resc_free_input req = {0};
341
342 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESC_FREE, -1, -1);
343
344 mutex_lock(&bp->hwrm_cmd_lock);
4bb6cdce 345 for (i = pf->first_vf_id; i < pf->first_vf_id + num_vfs; i++) {
c0c050c5
MC		 346 req.vf_id = cpu_to_le16(i);
347 rc = _hwrm_send_message(bp, &req, sizeof(req),
348 HWRM_CMD_TIMEOUT);
349 if (rc)
350 break;
351 }
352 mutex_unlock(&bp->hwrm_cmd_lock);
353 return rc;
354}
355
356static void bnxt_free_vf_resources(struct bnxt *bp)
357{
358 struct pci_dev *pdev = bp->pdev;
359 int i;
360
361 kfree(bp->pf.vf_event_bmap);
362 bp->pf.vf_event_bmap = NULL;
363
364 for (i = 0; i < 4; i++) {
365 if (bp->pf.hwrm_cmd_req_addr[i]) {
366 dma_free_coherent(&pdev->dev, BNXT_PAGE_SIZE,
367 bp->pf.hwrm_cmd_req_addr[i],
368 bp->pf.hwrm_cmd_req_dma_addr[i]);
369 bp->pf.hwrm_cmd_req_addr[i] = NULL;
370 }
371 }
372
373 kfree(bp->pf.vf);
374 bp->pf.vf = NULL;
375}
376
377static int bnxt_alloc_vf_resources(struct bnxt *bp, int num_vfs)
378{
379 struct pci_dev *pdev = bp->pdev;
380 u32 nr_pages, size, i, j, k = 0;
381
382 bp->pf.vf = kcalloc(num_vfs, sizeof(struct bnxt_vf_info), GFP_KERNEL);
383 if (!bp->pf.vf)
384 return -ENOMEM;
385
386 bnxt_set_vf_attr(bp, num_vfs);
387
388 size = num_vfs * BNXT_HWRM_REQ_MAX_SIZE;
389 nr_pages = size / BNXT_PAGE_SIZE;
390 if (size & (BNXT_PAGE_SIZE - 1))
391 nr_pages++;
392
393 for (i = 0; i < nr_pages; i++) {
394 bp->pf.hwrm_cmd_req_addr[i] =
395 dma_alloc_coherent(&pdev->dev, BNXT_PAGE_SIZE,
396 &bp->pf.hwrm_cmd_req_dma_addr[i],
397 GFP_KERNEL);
398
399 if (!bp->pf.hwrm_cmd_req_addr[i])
400 return -ENOMEM;
401
402 for (j = 0; j < BNXT_HWRM_REQS_PER_PAGE && k < num_vfs; j++) {
403 struct bnxt_vf_info *vf = &bp->pf.vf[k];
404
405 vf->hwrm_cmd_req_addr = bp->pf.hwrm_cmd_req_addr[i] +
406 j * BNXT_HWRM_REQ_MAX_SIZE;
407 vf->hwrm_cmd_req_dma_addr =
408 bp->pf.hwrm_cmd_req_dma_addr[i] + j *
409 BNXT_HWRM_REQ_MAX_SIZE;
410 k++;
411 }
412 }
413
414 /* Max 128 VF's */
415 bp->pf.vf_event_bmap = kzalloc(16, GFP_KERNEL);
416 if (!bp->pf.vf_event_bmap)
417 return -ENOMEM;
418
419 bp->pf.hwrm_cmd_req_pages = nr_pages;
420 return 0;
421}
422
423static int bnxt_hwrm_func_buf_rgtr(struct bnxt *bp)
424{
425 struct hwrm_func_buf_rgtr_input req = {0};
426
427 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_BUF_RGTR, -1, -1);
428
429 req.req_buf_num_pages = cpu_to_le16(bp->pf.hwrm_cmd_req_pages);
430 req.req_buf_page_size = cpu_to_le16(BNXT_PAGE_SHIFT);
431 req.req_buf_len = cpu_to_le16(BNXT_HWRM_REQ_MAX_SIZE);
432 req.req_buf_page_addr0 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[0]);
433 req.req_buf_page_addr1 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[1]);
434 req.req_buf_page_addr2 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[2]);
435 req.req_buf_page_addr3 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[3]);
436
437 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
438}
439
4673d664
MC		 440/* Only called by PF to reserve resources for VFs, returns actual number of
441 * VFs configured, or < 0 on error.
442 */
443static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs)
444{
445 struct hwrm_func_vf_resource_cfg_input req = {0};
446 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
447 u16 vf_tx_rings, vf_rx_rings, vf_cp_rings;
448 u16 vf_stat_ctx, vf_vnics, vf_ring_grps;
449 struct bnxt_pf_info *pf = &bp->pf;
450 int i, rc = 0;
451
452 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_RESOURCE_CFG, -1, -1);
453
454 vf_cp_rings = hw_resc->max_cp_rings - bp->cp_nr_rings;
455 vf_stat_ctx = hw_resc->max_stat_ctxs - bp->num_stat_ctxs;
456 if (bp->flags & BNXT_FLAG_AGG_RINGS)
457 vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings * 2;
458 else
459 vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings;
460 vf_ring_grps = hw_resc->max_hw_ring_grps - bp->rx_nr_rings;
461 vf_tx_rings = hw_resc->max_tx_rings - bp->tx_nr_rings;
462 vf_vnics = hw_resc->max_vnics - bp->nr_vnics;
463 vf_vnics = min_t(u16, vf_vnics, vf_rx_rings);
464
86c3380d
MC		 465 req.min_rsscos_ctx = cpu_to_le16(BNXT_VF_MIN_RSS_CTX);
466 req.max_rsscos_ctx = cpu_to_le16(BNXT_VF_MAX_RSS_CTX);
4673d664
MC		 467 if (pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL) {
468 req.min_cmpl_rings = cpu_to_le16(1);
469 req.min_tx_rings = cpu_to_le16(1);
470 req.min_rx_rings = cpu_to_le16(1);
86c3380d 471 req.min_l2_ctxs = cpu_to_le16(BNXT_VF_MIN_L2_CTX);
4673d664
MC		 472 req.min_vnics = cpu_to_le16(1);
473 req.min_stat_ctx = cpu_to_le16(1);
474 req.min_hw_ring_grps = cpu_to_le16(1);
475 } else {
476 vf_cp_rings /= num_vfs;
477 vf_tx_rings /= num_vfs;
478 vf_rx_rings /= num_vfs;
479 vf_vnics /= num_vfs;
480 vf_stat_ctx /= num_vfs;
481 vf_ring_grps /= num_vfs;
482
483 req.min_cmpl_rings = cpu_to_le16(vf_cp_rings);
484 req.min_tx_rings = cpu_to_le16(vf_tx_rings);
485 req.min_rx_rings = cpu_to_le16(vf_rx_rings);
86c3380d 486 req.min_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
4673d664
MC		 487 req.min_vnics = cpu_to_le16(vf_vnics);
488 req.min_stat_ctx = cpu_to_le16(vf_stat_ctx);
489 req.min_hw_ring_grps = cpu_to_le16(vf_ring_grps);
490 }
491 req.max_cmpl_rings = cpu_to_le16(vf_cp_rings);
492 req.max_tx_rings = cpu_to_le16(vf_tx_rings);
493 req.max_rx_rings = cpu_to_le16(vf_rx_rings);
86c3380d 494 req.max_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);
4673d664
MC		 495 req.max_vnics = cpu_to_le16(vf_vnics);
496 req.max_stat_ctx = cpu_to_le16(vf_stat_ctx);
497 req.max_hw_ring_grps = cpu_to_le16(vf_ring_grps);
498
499 mutex_lock(&bp->hwrm_cmd_lock);
500 for (i = 0; i < num_vfs; i++) {
501 req.vf_id = cpu_to_le16(pf->first_vf_id + i);
502 rc = _hwrm_send_message(bp, &req, sizeof(req),
503 HWRM_CMD_TIMEOUT);
504 if (rc) {
505 rc = -ENOMEM;
506 break;
507 }
508 pf->active_vfs = i + 1;
509 pf->vf[i].fw_fid = pf->first_vf_id + i;
510 }
511 mutex_unlock(&bp->hwrm_cmd_lock);
512 if (pf->active_vfs) {
596f9d55 513 u16 n = pf->active_vfs;
4673d664 514
596f9d55
MC		 515 hw_resc->max_tx_rings -= le16_to_cpu(req.min_tx_rings) * n;
516 hw_resc->max_rx_rings -= le16_to_cpu(req.min_rx_rings) * n;
517 hw_resc->max_hw_ring_grps -= le16_to_cpu(req.min_hw_ring_grps) *
518 n;
519 hw_resc->max_cp_rings -= le16_to_cpu(req.min_cmpl_rings) * n;
4673d664 520 hw_resc->max_rsscos_ctxs -= pf->active_vfs;
596f9d55
MC		 521 hw_resc->max_stat_ctxs -= le16_to_cpu(req.min_stat_ctx) * n;
522 hw_resc->max_vnics -= le16_to_cpu(req.min_vnics) * n;
4673d664
MC		 523
524 rc = pf->active_vfs;
525 }
526 return rc;
527}
528
529/* Only called by PF to reserve resources for VFs, returns actual number of
530 * VFs configured, or < 0 on error.
531 */
92268c32 532static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs)
c0c050c5
MC		 533{
534 u32 rc = 0, mtu, i;
535 u16 vf_tx_rings, vf_rx_rings, vf_cp_rings, vf_stat_ctx, vf_vnics;
6a4f2947
MC		 536 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
537 u16 vf_ring_grps, max_stat_ctxs;
c0c050c5
MC		 538 struct hwrm_func_cfg_input req = {0};
539 struct bnxt_pf_info *pf = &bp->pf;
391be5c2 540 int total_vf_tx_rings = 0;
c0c050c5
MC		 541
542 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
543
6a4f2947
MC		 544 max_stat_ctxs = hw_resc->max_stat_ctxs;
545
c0c050c5 546 /* Remaining rings are distributed equally amongs VF's for now */
6a4f2947
MC		 547 vf_cp_rings = (hw_resc->max_cp_rings - bp->cp_nr_rings) / num_vfs;
548 vf_stat_ctx = (max_stat_ctxs - bp->num_stat_ctxs) / num_vfs;
c0c050c5 549 if (bp->flags & BNXT_FLAG_AGG_RINGS)
6a4f2947 550 vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings * 2) /
92268c32 551 num_vfs;
c0c050c5 552 else
6a4f2947
MC		 553 vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings) /
554 num_vfs;
555 vf_ring_grps = (hw_resc->max_hw_ring_grps - bp->rx_nr_rings) / num_vfs;
556 vf_tx_rings = (hw_resc->max_tx_rings - bp->tx_nr_rings) / num_vfs;
557 vf_vnics = (hw_resc->max_vnics - bp->nr_vnics) / num_vfs;
8427af81 558 vf_vnics = min_t(u16, vf_vnics, vf_rx_rings);
c0c050c5
MC		 559
560 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MTU |
561 FUNC_CFG_REQ_ENABLES_MRU |
562 FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS |
563 FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS |
564 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
565 FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS |
566 FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS |
567 FUNC_CFG_REQ_ENABLES_NUM_L2_CTXS |
b72d4a68
MC		 568 FUNC_CFG_REQ_ENABLES_NUM_VNICS |
569 FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS);
c0c050c5
MC		 570
571 mtu = bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
572 req.mru = cpu_to_le16(mtu);
573 req.mtu = cpu_to_le16(mtu);
574
575 req.num_rsscos_ctxs = cpu_to_le16(1);
576 req.num_cmpl_rings = cpu_to_le16(vf_cp_rings);
577 req.num_tx_rings = cpu_to_le16(vf_tx_rings);
578 req.num_rx_rings = cpu_to_le16(vf_rx_rings);
b72d4a68 579 req.num_hw_ring_grps = cpu_to_le16(vf_ring_grps);
c0c050c5 580 req.num_l2_ctxs = cpu_to_le16(4);
c0c050c5
MC		 581
582 req.num_vnics = cpu_to_le16(vf_vnics);
583 /* FIXME spec currently uses 1 bit for stats ctx */
584 req.num_stat_ctxs = cpu_to_le16(vf_stat_ctx);
585
586 mutex_lock(&bp->hwrm_cmd_lock);
92268c32 587 for (i = 0; i < num_vfs; i++) {
391be5c2
MC		 588 int vf_tx_rsvd = vf_tx_rings;
589
c193554e 590 req.fid = cpu_to_le16(pf->first_vf_id + i);
c0c050c5
MC		 591 rc = _hwrm_send_message(bp, &req, sizeof(req),
592 HWRM_CMD_TIMEOUT);
593 if (rc)
594 break;
92268c32 595 pf->active_vfs = i + 1;
c193554e 596 pf->vf[i].fw_fid = le16_to_cpu(req.fid);
391be5c2
MC		 597 rc = __bnxt_hwrm_get_tx_rings(bp, pf->vf[i].fw_fid,
598 &vf_tx_rsvd);
599 if (rc)
600 break;
601 total_vf_tx_rings += vf_tx_rsvd;
c0c050c5
MC		 602 }
603 mutex_unlock(&bp->hwrm_cmd_lock);
4673d664
MC		 604 if (rc)
605 rc = -ENOMEM;
606 if (pf->active_vfs) {
6a4f2947
MC		 607 hw_resc->max_tx_rings -= total_vf_tx_rings;
608 hw_resc->max_rx_rings -= vf_rx_rings * num_vfs;
609 hw_resc->max_hw_ring_grps -= vf_ring_grps * num_vfs;
610 hw_resc->max_cp_rings -= vf_cp_rings * num_vfs;
611 hw_resc->max_rsscos_ctxs -= num_vfs;
612 hw_resc->max_stat_ctxs -= vf_stat_ctx * num_vfs;
613 hw_resc->max_vnics -= vf_vnics * num_vfs;
4673d664 614 rc = pf->active_vfs;
c0c050c5
MC		 615 }
616 return rc;
617}
618
4673d664
MC		 619static int bnxt_func_cfg(struct bnxt *bp, int num_vfs)
620{
621 if (bp->flags & BNXT_FLAG_NEW_RM)
622 return bnxt_hwrm_func_vf_resc_cfg(bp, num_vfs);
623 else
624 return bnxt_hwrm_func_cfg(bp, num_vfs);
625}
626
c0c050c5
MC		 627static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs)
628{
629 int rc = 0, vfs_supported;
630 int min_rx_rings, min_tx_rings, min_rss_ctxs;
6a4f2947 631 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;
c0c050c5 632 int tx_ok = 0, rx_ok = 0, rss_ok = 0;
02157079 633 int avail_cp, avail_stat;
c0c050c5
MC		 634
635 /* Check if we can enable requested num of vf's. At a mininum
636 * we require 1 RX 1 TX rings for each VF. In this minimum conf
637 * features like TPA will not be available.
638 */
639 vfs_supported = *num_vfs;
640
6a4f2947
MC		 641 avail_cp = hw_resc->max_cp_rings - bp->cp_nr_rings;
642 avail_stat = hw_resc->max_stat_ctxs - bp->num_stat_ctxs;
02157079
MC		 643 avail_cp = min_t(int, avail_cp, avail_stat);
644
c0c050c5
MC		 645 while (vfs_supported) {
646 min_rx_rings = vfs_supported;
647 min_tx_rings = vfs_supported;
648 min_rss_ctxs = vfs_supported;
649
650 if (bp->flags & BNXT_FLAG_AGG_RINGS) {
6a4f2947 651 if (hw_resc->max_rx_rings - bp->rx_nr_rings * 2 >=
c0c050c5
MC		 652 min_rx_rings)
653 rx_ok = 1;
654 } else {
6a4f2947 655 if (hw_resc->max_rx_rings - bp->rx_nr_rings >=
c0c050c5
MC		 656 min_rx_rings)
657 rx_ok = 1;
658 }
6a4f2947 659 if (hw_resc->max_vnics - bp->nr_vnics < min_rx_rings ||
02157079 660 avail_cp < min_rx_rings)
8427af81 661 rx_ok = 0;
c0c050c5 662
6a4f2947 663 if (hw_resc->max_tx_rings - bp->tx_nr_rings >= min_tx_rings &&
02157079 664 avail_cp >= min_tx_rings)
c0c050c5
MC		 665 tx_ok = 1;
666
6a4f2947
MC		 667 if (hw_resc->max_rsscos_ctxs - bp->rsscos_nr_ctxs >=
668 min_rss_ctxs)
c0c050c5
MC		 669 rss_ok = 1;
670
671 if (tx_ok && rx_ok && rss_ok)
672 break;
673
674 vfs_supported--;
675 }
676
677 if (!vfs_supported) {
678 netdev_err(bp->dev, "Cannot enable VF's as all resources are used by PF\n");
679 return -EINVAL;
680 }
681
682 if (vfs_supported != *num_vfs) {
683 netdev_info(bp->dev, "Requested VFs %d, can enable %d\n",
684 *num_vfs, vfs_supported);
685 *num_vfs = vfs_supported;
686 }
687
688 rc = bnxt_alloc_vf_resources(bp, *num_vfs);
689 if (rc)
690 goto err_out1;
691
692 /* Reserve resources for VFs */
4673d664
MC		 693 rc = bnxt_func_cfg(bp, *num_vfs);
694 if (rc != *num_vfs) {
695 if (rc <= 0) {
696 netdev_warn(bp->dev, "Unable to reserve resources for SRIOV.\n");
697 *num_vfs = 0;
698 goto err_out2;
699 }
700 netdev_warn(bp->dev, "Only able to reserve resources for %d VFs.\n", rc);
701 *num_vfs = rc;
702 }
c0c050c5
MC		 703
704 /* Register buffers for VFs */
705 rc = bnxt_hwrm_func_buf_rgtr(bp);
706 if (rc)
707 goto err_out2;
708
2f593846
MC		 709 bnxt_ulp_sriov_cfg(bp, *num_vfs);
710
c0c050c5
MC		 711 rc = pci_enable_sriov(bp->pdev, *num_vfs);
712 if (rc)
713 goto err_out2;
714
715 return 0;
716
717err_out2:
718 /* Free the resources reserved for various VF's */
4bb6cdce 719 bnxt_hwrm_func_vf_resource_free(bp, *num_vfs);
c0c050c5
MC		 720
721err_out1:
722 bnxt_free_vf_resources(bp);
723
724 return rc;
725}
726
727void bnxt_sriov_disable(struct bnxt *bp)
728{
4bb6cdce 729 u16 num_vfs = pci_num_vf(bp->pdev);
c0c050c5 730
4bb6cdce
JH		 731 if (!num_vfs)
732 return;
c0c050c5 733
4ab0c6a8
SP		 734 /* synchronize VF and VF-rep create and destroy */
735 mutex_lock(&bp->sriov_lock);
736 bnxt_vf_reps_destroy(bp);
737
4bb6cdce 738 if (pci_vfs_assigned(bp->pdev)) {
19241368 739 bnxt_hwrm_fwd_async_event_cmpl(
87c374de 740 bp, NULL, ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD);
4bb6cdce
JH		 741 netdev_warn(bp->dev, "Unable to free %d VFs because some are assigned to VMs.\n",
742 num_vfs);
743 } else {
744 pci_disable_sriov(bp->pdev);
745 /* Free the HW resources reserved for various VF's */
746 bnxt_hwrm_func_vf_resource_free(bp, num_vfs);
747 }
4ab0c6a8 748 mutex_unlock(&bp->sriov_lock);
c0c050c5
MC		 749
750 bnxt_free_vf_resources(bp);
751
752 bp->pf.active_vfs = 0;
4a21b49b 753 /* Reclaim all resources for the PF. */
7b08f661
MC		 754 rtnl_lock();
755 bnxt_restore_pf_fw_resources(bp);
756 rtnl_unlock();
2f593846
MC		 757
758 bnxt_ulp_sriov_cfg(bp, 0);
c0c050c5
MC		 759}
760
761int bnxt_sriov_configure(struct pci_dev *pdev, int num_vfs)
762{
763 struct net_device *dev = pci_get_drvdata(pdev);
764 struct bnxt *bp = netdev_priv(dev);
765
766 if (!(bp->flags & BNXT_FLAG_USING_MSIX)) {
767 netdev_warn(dev, "Not allow SRIOV if the irq mode is not MSIX\n");
768 return 0;
769 }
770
771 rtnl_lock();
772 if (!netif_running(dev)) {
773 netdev_warn(dev, "Reject SRIOV config request since if is down!\n");
774 rtnl_unlock();
775 return 0;
776 }
777 bp->sriov_cfg = true;
778 rtnl_unlock();
4bb6cdce
JH		 779
780 if (pci_vfs_assigned(bp->pdev)) {
781 netdev_warn(dev, "Unable to configure SRIOV since some VFs are assigned to VMs.\n");
782 num_vfs = 0;
783 goto sriov_cfg_exit;
c0c050c5
MC		 784 }
785
786 /* Check if enabled VFs is same as requested */
4bb6cdce
JH		 787 if (num_vfs && num_vfs == bp->pf.active_vfs)
788 goto sriov_cfg_exit;
789
790 /* if there are previous existing VFs, clean them up */
791 bnxt_sriov_disable(bp);
792 if (!num_vfs)
793 goto sriov_cfg_exit;
c0c050c5
MC		 794
795 bnxt_sriov_enable(bp, &num_vfs);
796
4bb6cdce 797sriov_cfg_exit:
c0c050c5
MC		 798 bp->sriov_cfg = false;
799 wake_up(&bp->sriov_cfg_wait);
800
801 return num_vfs;
802}
803
804static int bnxt_hwrm_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
805 void *encap_resp, __le64 encap_resp_addr,
806 __le16 encap_resp_cpr, u32 msg_size)
807{
808 int rc = 0;
809 struct hwrm_fwd_resp_input req = {0};
810 struct hwrm_fwd_resp_output *resp = bp->hwrm_cmd_resp_addr;
811
59895f59
MC		 812 if (BNXT_FWD_RESP_SIZE_ERR(msg_size))
813 return -EINVAL;
814
c0c050c5
MC		 815 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FWD_RESP, -1, -1);
816
817 /* Set the new target id */
818 req.target_id = cpu_to_le16(vf->fw_fid);
c193554e 819 req.encap_resp_target_id = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 820 req.encap_resp_len = cpu_to_le16(msg_size);
821 req.encap_resp_addr = encap_resp_addr;
822 req.encap_resp_cmpl_ring = encap_resp_cpr;
823 memcpy(req.encap_resp, encap_resp, msg_size);
824
825 mutex_lock(&bp->hwrm_cmd_lock);
826 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
827
828 if (rc) {
829 netdev_err(bp->dev, "hwrm_fwd_resp failed. rc:%d\n", rc);
830 goto fwd_resp_exit;
831 }
832
833 if (resp->error_code) {
834 netdev_err(bp->dev, "hwrm_fwd_resp error %d\n",
835 resp->error_code);
836 rc = -1;
837 }
838
839fwd_resp_exit:
840 mutex_unlock(&bp->hwrm_cmd_lock);
841 return rc;
842}
843
844static int bnxt_hwrm_fwd_err_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
845 u32 msg_size)
846{
847 int rc = 0;
848 struct hwrm_reject_fwd_resp_input req = {0};
849 struct hwrm_reject_fwd_resp_output *resp = bp->hwrm_cmd_resp_addr;
850
59895f59
MC		 851 if (BNXT_REJ_FWD_RESP_SIZE_ERR(msg_size))
852 return -EINVAL;
853
c0c050c5
MC		 854 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_REJECT_FWD_RESP, -1, -1);
855 /* Set the new target id */
856 req.target_id = cpu_to_le16(vf->fw_fid);
c193554e 857 req.encap_resp_target_id = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 858 memcpy(req.encap_request, vf->hwrm_cmd_req_addr, msg_size);
859
860 mutex_lock(&bp->hwrm_cmd_lock);
861 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
862
863 if (rc) {
864 netdev_err(bp->dev, "hwrm_fwd_err_resp failed. rc:%d\n", rc);
865 goto fwd_err_resp_exit;
866 }
867
868 if (resp->error_code) {
869 netdev_err(bp->dev, "hwrm_fwd_err_resp error %d\n",
870 resp->error_code);
871 rc = -1;
872 }
873
874fwd_err_resp_exit:
875 mutex_unlock(&bp->hwrm_cmd_lock);
876 return rc;
877}
878
879static int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,
880 u32 msg_size)
881{
882 int rc = 0;
883 struct hwrm_exec_fwd_resp_input req = {0};
884 struct hwrm_exec_fwd_resp_output *resp = bp->hwrm_cmd_resp_addr;
885
59895f59
MC		 886 if (BNXT_EXEC_FWD_RESP_SIZE_ERR(msg_size))
887 return -EINVAL;
888
c0c050c5
MC		 889 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_EXEC_FWD_RESP, -1, -1);
890 /* Set the new target id */
891 req.target_id = cpu_to_le16(vf->fw_fid);
c193554e 892 req.encap_resp_target_id = cpu_to_le16(vf->fw_fid);
c0c050c5
MC		 893 memcpy(req.encap_request, vf->hwrm_cmd_req_addr, msg_size);
894
895 mutex_lock(&bp->hwrm_cmd_lock);
896 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
897
898 if (rc) {
899 netdev_err(bp->dev, "hwrm_exec_fw_resp failed. rc:%d\n", rc);
900 goto exec_fwd_resp_exit;
901 }
902
903 if (resp->error_code) {
904 netdev_err(bp->dev, "hwrm_exec_fw_resp error %d\n",
905 resp->error_code);
906 rc = -1;
907 }
908
909exec_fwd_resp_exit:
910 mutex_unlock(&bp->hwrm_cmd_lock);
911 return rc;
912}
913
746df139 914static int bnxt_vf_configure_mac(struct bnxt *bp, struct bnxt_vf_info *vf)
91cdda40
VV		 915{
916 u32 msg_size = sizeof(struct hwrm_func_vf_cfg_input);
917 struct hwrm_func_vf_cfg_input *req =
918 (struct hwrm_func_vf_cfg_input *)vf->hwrm_cmd_req_addr;
919
746df139
VV		 920 /* Allow VF to set a valid MAC address, if trust is set to on or
921 * if the PF assigned MAC address is zero
91cdda40
VV		 922 */
923 if (req->enables & cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR)) {
924 if (is_valid_ether_addr(req->dflt_mac_addr) &&
746df139 925 ((vf->flags & BNXT_VF_TRUST) ||
707e7e96
MC		 926 !is_valid_ether_addr(vf->mac_addr) ||
927 ether_addr_equal(req->dflt_mac_addr, vf->mac_addr))) {
91cdda40
VV		 928 ether_addr_copy(vf->vf_mac_addr, req->dflt_mac_addr);
929 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
930 }
931 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);
932 }
933 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
934}
935
c0c050c5
MC		 936static int bnxt_vf_validate_set_mac(struct bnxt *bp, struct bnxt_vf_info *vf)
937{
938 u32 msg_size = sizeof(struct hwrm_cfa_l2_filter_alloc_input);
939 struct hwrm_cfa_l2_filter_alloc_input *req =
940 (struct hwrm_cfa_l2_filter_alloc_input *)vf->hwrm_cmd_req_addr;
91cdda40 941 bool mac_ok = false;
c0c050c5 942
746df139
VV		 943 if (!is_valid_ether_addr((const u8 *)req->l2_addr))
944 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);
945
946 /* Allow VF to set a valid MAC address, if trust is set to on.
947 * Or VF MAC address must first match MAC address in PF's context.
91cdda40
VV		 948 * Otherwise, it must match the VF MAC address if firmware spec >=
949 * 1.2.2
950 */
746df139
VV		 951 if (vf->flags & BNXT_VF_TRUST) {
952 mac_ok = true;
953 } else if (is_valid_ether_addr(vf->mac_addr)) {
91cdda40
VV		 954 if (ether_addr_equal((const u8 *)req->l2_addr, vf->mac_addr))
955 mac_ok = true;
956 } else if (is_valid_ether_addr(vf->vf_mac_addr)) {
957 if (ether_addr_equal((const u8 *)req->l2_addr, vf->vf_mac_addr))
958 mac_ok = true;
91cdda40 959 } else {
6fd544c8
Y		 960 /* There are two cases:
961 * 1.If firmware spec < 0x10202,VF MAC address is not forwarded
962 * to the PF and so it doesn't have to match
963 * 2.Allow VF to modify it's own MAC when PF has not assigned a
964 * valid MAC address and firmware spec >= 0x10202
965 */
91cdda40
VV		 966 mac_ok = true;
967 }
968 if (mac_ok)
c0c050c5 969 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);
91cdda40 970 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);
c0c050c5
MC		 971}
972
973static int bnxt_vf_set_link(struct bnxt *bp, struct bnxt_vf_info *vf)
974{
975 int rc = 0;
976
977 if (!(vf->flags & BNXT_VF_LINK_FORCED)) {
978 /* real link */
979 rc = bnxt_hwrm_exec_fwd_resp(
980 bp, vf, sizeof(struct hwrm_port_phy_qcfg_input));
981 } else {
982 struct hwrm_port_phy_qcfg_output phy_qcfg_resp;
983 struct hwrm_port_phy_qcfg_input *phy_qcfg_req;
984
985 phy_qcfg_req =
986 (struct hwrm_port_phy_qcfg_input *)vf->hwrm_cmd_req_addr;
987 mutex_lock(&bp->hwrm_cmd_lock);
988 memcpy(&phy_qcfg_resp, &bp->link_info.phy_qcfg_resp,
989 sizeof(phy_qcfg_resp));
990 mutex_unlock(&bp->hwrm_cmd_lock);
845adfe4 991 phy_qcfg_resp.resp_len = cpu_to_le16(sizeof(phy_qcfg_resp));
c0c050c5 992 phy_qcfg_resp.seq_id = phy_qcfg_req->seq_id;
845adfe4 993 phy_qcfg_resp.valid = 1;
c0c050c5
MC		 994
995 if (vf->flags & BNXT_VF_LINK_UP) {
996 /* if physical link is down, force link up on VF */
73b9bad6
MC		 997 if (phy_qcfg_resp.link !=
998 PORT_PHY_QCFG_RESP_LINK_LINK) {
c0c050c5
MC		 999 phy_qcfg_resp.link =
1000 PORT_PHY_QCFG_RESP_LINK_LINK;
11f15ed3
MC		 1001 phy_qcfg_resp.link_speed = cpu_to_le16(
1002 PORT_PHY_QCFG_RESP_LINK_SPEED_10GB);
acb20054
MC		 1003 phy_qcfg_resp.duplex_cfg =
1004 PORT_PHY_QCFG_RESP_DUPLEX_CFG_FULL;
1005 phy_qcfg_resp.duplex_state =
1006 PORT_PHY_QCFG_RESP_DUPLEX_STATE_FULL;
c0c050c5
MC		 1007 phy_qcfg_resp.pause =
1008 (PORT_PHY_QCFG_RESP_PAUSE_TX |
1009 PORT_PHY_QCFG_RESP_PAUSE_RX);
1010 }
1011 } else {
1012 /* force link down */
1013 phy_qcfg_resp.link = PORT_PHY_QCFG_RESP_LINK_NO_LINK;
1014 phy_qcfg_resp.link_speed = 0;
acb20054
MC		 1015 phy_qcfg_resp.duplex_state =
1016 PORT_PHY_QCFG_RESP_DUPLEX_STATE_HALF;
c0c050c5
MC		 1017 phy_qcfg_resp.pause = 0;
1018 }
1019 rc = bnxt_hwrm_fwd_resp(bp, vf, &phy_qcfg_resp,
1020 phy_qcfg_req->resp_addr,
1021 phy_qcfg_req->cmpl_ring,
1022 sizeof(phy_qcfg_resp));
1023 }
1024 return rc;
1025}
1026
1027static int bnxt_vf_req_validate_snd(struct bnxt *bp, struct bnxt_vf_info *vf)
1028{
1029 int rc = 0;
a8643e16
MC		 1030 struct input *encap_req = vf->hwrm_cmd_req_addr;
1031 u32 req_type = le16_to_cpu(encap_req->req_type);
c0c050c5
MC		 1032
1033 switch (req_type) {
91cdda40 1034 case HWRM_FUNC_VF_CFG:
746df139 1035 rc = bnxt_vf_configure_mac(bp, vf);
91cdda40 1036 break;
c0c050c5
MC		 1037 case HWRM_CFA_L2_FILTER_ALLOC:
1038 rc = bnxt_vf_validate_set_mac(bp, vf);
1039 break;
1040 case HWRM_FUNC_CFG:
1041 /* TODO Validate if VF is allowed to change mac address,
1042 * mtu, num of rings etc
1043 */
1044 rc = bnxt_hwrm_exec_fwd_resp(
1045 bp, vf, sizeof(struct hwrm_func_cfg_input));
1046 break;
1047 case HWRM_PORT_PHY_QCFG:
1048 rc = bnxt_vf_set_link(bp, vf);
1049 break;
1050 default:
1051 break;
1052 }
1053 return rc;
1054}
1055
1056void bnxt_hwrm_exec_fwd_req(struct bnxt *bp)
1057{
1058 u32 i = 0, active_vfs = bp->pf.active_vfs, vf_id;
1059
1060 /* Scan through VF's and process commands */
1061 while (1) {
1062 vf_id = find_next_bit(bp->pf.vf_event_bmap, active_vfs, i);
1063 if (vf_id >= active_vfs)
1064 break;
1065
1066 clear_bit(vf_id, bp->pf.vf_event_bmap);
1067 bnxt_vf_req_validate_snd(bp, &bp->pf.vf[vf_id]);
1068 i = vf_id + 1;
1069 }
1070}
379a80a1
MC		 1071
1072void bnxt_update_vf_mac(struct bnxt *bp)
1073{
1074 struct hwrm_func_qcaps_input req = {0};
1075 struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
1076
1077 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCAPS, -1, -1);
1078 req.fid = cpu_to_le16(0xffff);
1079
1080 mutex_lock(&bp->hwrm_cmd_lock);
1081 if (_hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT))
1082 goto update_vf_mac_exit;
1083
3874d6a8
JH		 1084 /* Store MAC address from the firmware. There are 2 cases:
1085 * 1. MAC address is valid. It is assigned from the PF and we
1086 * need to override the current VF MAC address with it.
1087 * 2. MAC address is zero. The VF will use a random MAC address by
1088 * default but the stored zero MAC will allow the VF user to change
1089 * the random MAC address using ndo_set_mac_address() if he wants.
1090 */
11f15ed3
MC		 1091 if (!ether_addr_equal(resp->mac_address, bp->vf.mac_addr))
1092 memcpy(bp->vf.mac_addr, resp->mac_address, ETH_ALEN);
3874d6a8
JH		 1093
1094 /* overwrite netdev dev_addr with admin VF MAC */
1095 if (is_valid_ether_addr(bp->vf.mac_addr))
1096 memcpy(bp->dev->dev_addr, bp->vf.mac_addr, ETH_ALEN);
379a80a1
MC		 1097update_vf_mac_exit:
1098 mutex_unlock(&bp->hwrm_cmd_lock);
1099}
1100
84c33dd3
MC		 1101int bnxt_approve_mac(struct bnxt *bp, u8 *mac)
1102{
1103 struct hwrm_func_vf_cfg_input req = {0};
1104 int rc = 0;
1105
1106 if (!BNXT_VF(bp))
1107 return 0;
1108
1109 if (bp->hwrm_spec_code < 0x10202) {
1110 if (is_valid_ether_addr(bp->vf.mac_addr))
1111 rc = -EADDRNOTAVAIL;
1112 goto mac_done;
1113 }
1114 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1);
1115 req.enables = cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR);
1116 memcpy(req.dflt_mac_addr, mac, ETH_ALEN);
1117 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1118mac_done:
1119 if (rc) {
1120 rc = -EADDRNOTAVAIL;
1121 netdev_warn(bp->dev, "VF MAC address %pM not approved by the PF\n",
1122 mac);
1123 }
1124 return rc;
1125}
c0c050c5
MC		 1126#else
1127
1128void bnxt_sriov_disable(struct bnxt *bp)
1129{
1130}
1131
1132void bnxt_hwrm_exec_fwd_req(struct bnxt *bp)
1133{
379a80a1
MC		 1134 netdev_err(bp->dev, "Invalid VF message received when SRIOV is not enable\n");
1135}
1136
1137void bnxt_update_vf_mac(struct bnxt *bp)
1138{
c0c050c5 1139}
84c33dd3
MC		 1140
1141int bnxt_approve_mac(struct bnxt *bp, u8 *mac)
1142{
1143 return 0;
1144}
c0c050c5 1145#endif
Linux 6.x block layer and io_uring tree(s)