1283 lines · c
1/* Broadcom NetXtreme-C/E network driver.2 *3 * Copyright (c) 2014-2016 Broadcom Corporation4 * Copyright (c) 2016-2018 Broadcom Limited5 *6 * This program is free software; you can redistribute it and/or modify7 * it under the terms of the GNU General Public License as published by8 * the Free Software Foundation.9 */10 11#include <linux/ethtool.h>12#include <linux/module.h>13#include <linux/pci.h>14#include <linux/netdevice.h>15#include <linux/if_vlan.h>16#include <linux/interrupt.h>17#include <linux/etherdevice.h>18#include <net/dcbnl.h>19#include "bnxt_hsi.h"20#include "bnxt.h"21#include "bnxt_hwrm.h"22#include "bnxt_ulp.h"23#include "bnxt_sriov.h"24#include "bnxt_vfr.h"25#include "bnxt_ethtool.h"26 27#ifdef CONFIG_BNXT_SRIOV28static int bnxt_hwrm_fwd_async_event_cmpl(struct bnxt *bp,29 struct bnxt_vf_info *vf, u16 event_id)30{31 struct hwrm_fwd_async_event_cmpl_input *req;32 struct hwrm_async_event_cmpl *async_cmpl;33 int rc = 0;34 35 rc = hwrm_req_init(bp, req, HWRM_FWD_ASYNC_EVENT_CMPL);36 if (rc)37 goto exit;38 39 if (vf)40 req->encap_async_event_target_id = cpu_to_le16(vf->fw_fid);41 else42 /* broadcast this async event to all VFs */43 req->encap_async_event_target_id = cpu_to_le16(0xffff);44 async_cmpl =45 (struct hwrm_async_event_cmpl *)req->encap_async_event_cmpl;46 async_cmpl->type = cpu_to_le16(ASYNC_EVENT_CMPL_TYPE_HWRM_ASYNC_EVENT);47 async_cmpl->event_id = cpu_to_le16(event_id);48 49 rc = hwrm_req_send(bp, req);50exit:51 if (rc)52 netdev_err(bp->dev, "hwrm_fwd_async_event_cmpl failed. rc:%d\n",53 rc);54 return rc;55}56 57static int bnxt_vf_ndo_prep(struct bnxt *bp, int vf_id)58{59 if (!bp->pf.active_vfs) {60 netdev_err(bp->dev, "vf ndo called though sriov is disabled\n");61 return -EINVAL;62 }63 if (vf_id >= bp->pf.active_vfs) {64 netdev_err(bp->dev, "Invalid VF id %d\n", vf_id);65 return -EINVAL;66 }67 return 0;68}69 70int bnxt_set_vf_spoofchk(struct net_device *dev, int vf_id, bool setting)71{72 struct bnxt *bp = netdev_priv(dev);73 struct hwrm_func_cfg_input *req;74 bool old_setting = false;75 struct bnxt_vf_info *vf;76 u32 func_flags;77 int rc;78 79 if (bp->hwrm_spec_code < 0x10701)80 return -ENOTSUPP;81 82 rc = bnxt_vf_ndo_prep(bp, vf_id);83 if (rc)84 return rc;85 86 vf = &bp->pf.vf[vf_id];87 if (vf->flags & BNXT_VF_SPOOFCHK)88 old_setting = true;89 if (old_setting == setting)90 return 0;91 92 if (setting)93 func_flags = FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_ENABLE;94 else95 func_flags = FUNC_CFG_REQ_FLAGS_SRC_MAC_ADDR_CHECK_DISABLE;96 /*TODO: if the driver supports VLAN filter on guest VLAN,97 * the spoof check should also include vlan anti-spoofing98 */99 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req);100 if (!rc) {101 req->fid = cpu_to_le16(vf->fw_fid);102 req->flags = cpu_to_le32(func_flags);103 rc = hwrm_req_send(bp, req);104 if (!rc) {105 if (setting)106 vf->flags |= BNXT_VF_SPOOFCHK;107 else108 vf->flags &= ~BNXT_VF_SPOOFCHK;109 }110 }111 return rc;112}113 114static int bnxt_hwrm_func_qcfg_flags(struct bnxt *bp, struct bnxt_vf_info *vf)115{116 struct hwrm_func_qcfg_output *resp;117 struct hwrm_func_qcfg_input *req;118 int rc;119 120 rc = hwrm_req_init(bp, req, HWRM_FUNC_QCFG);121 if (rc)122 return rc;123 124 req->fid = cpu_to_le16(BNXT_PF(bp) ? vf->fw_fid : 0xffff);125 resp = hwrm_req_hold(bp, req);126 rc = hwrm_req_send(bp, req);127 if (!rc)128 vf->func_qcfg_flags = le16_to_cpu(resp->flags);129 hwrm_req_drop(bp, req);130 return rc;131}132 133bool bnxt_is_trusted_vf(struct bnxt *bp, struct bnxt_vf_info *vf)134{135 if (BNXT_PF(bp) && !(bp->fw_cap & BNXT_FW_CAP_TRUSTED_VF))136 return !!(vf->flags & BNXT_VF_TRUST);137 138 bnxt_hwrm_func_qcfg_flags(bp, vf);139 return !!(vf->func_qcfg_flags & FUNC_QCFG_RESP_FLAGS_TRUSTED_VF);140}141 142static int bnxt_hwrm_set_trusted_vf(struct bnxt *bp, struct bnxt_vf_info *vf)143{144 struct hwrm_func_cfg_input *req;145 int rc;146 147 if (!(bp->fw_cap & BNXT_FW_CAP_TRUSTED_VF))148 return 0;149 150 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req);151 if (rc)152 return rc;153 154 req->fid = cpu_to_le16(vf->fw_fid);155 if (vf->flags & BNXT_VF_TRUST)156 req->flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_TRUSTED_VF_ENABLE);157 else158 req->flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_TRUSTED_VF_DISABLE);159 return hwrm_req_send(bp, req);160}161 162int bnxt_set_vf_trust(struct net_device *dev, int vf_id, bool trusted)163{164 struct bnxt *bp = netdev_priv(dev);165 struct bnxt_vf_info *vf;166 167 if (bnxt_vf_ndo_prep(bp, vf_id))168 return -EINVAL;169 170 vf = &bp->pf.vf[vf_id];171 if (trusted)172 vf->flags |= BNXT_VF_TRUST;173 else174 vf->flags &= ~BNXT_VF_TRUST;175 176 bnxt_hwrm_set_trusted_vf(bp, vf);177 return 0;178}179 180int bnxt_get_vf_config(struct net_device *dev, int vf_id,181 struct ifla_vf_info *ivi)182{183 struct bnxt *bp = netdev_priv(dev);184 struct bnxt_vf_info *vf;185 int rc;186 187 rc = bnxt_vf_ndo_prep(bp, vf_id);188 if (rc)189 return rc;190 191 ivi->vf = vf_id;192 vf = &bp->pf.vf[vf_id];193 194 if (is_valid_ether_addr(vf->mac_addr))195 memcpy(&ivi->mac, vf->mac_addr, ETH_ALEN);196 else197 memcpy(&ivi->mac, vf->vf_mac_addr, ETH_ALEN);198 ivi->max_tx_rate = vf->max_tx_rate;199 ivi->min_tx_rate = vf->min_tx_rate;200 ivi->vlan = vf->vlan & VLAN_VID_MASK;201 ivi->qos = vf->vlan >> VLAN_PRIO_SHIFT;202 ivi->spoofchk = !!(vf->flags & BNXT_VF_SPOOFCHK);203 ivi->trusted = bnxt_is_trusted_vf(bp, vf);204 if (!(vf->flags & BNXT_VF_LINK_FORCED))205 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;206 else if (vf->flags & BNXT_VF_LINK_UP)207 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;208 else209 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;210 211 return 0;212}213 214int bnxt_set_vf_mac(struct net_device *dev, int vf_id, u8 *mac)215{216 struct bnxt *bp = netdev_priv(dev);217 struct hwrm_func_cfg_input *req;218 struct bnxt_vf_info *vf;219 int rc;220 221 rc = bnxt_vf_ndo_prep(bp, vf_id);222 if (rc)223 return rc;224 /* reject bc or mc mac addr, zero mac addr means allow225 * VF to use its own mac addr226 */227 if (is_multicast_ether_addr(mac)) {228 netdev_err(dev, "Invalid VF ethernet address\n");229 return -EINVAL;230 }231 vf = &bp->pf.vf[vf_id];232 233 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req);234 if (rc)235 return rc;236 237 memcpy(vf->mac_addr, mac, ETH_ALEN);238 239 req->fid = cpu_to_le16(vf->fw_fid);240 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_MAC_ADDR);241 memcpy(req->dflt_mac_addr, mac, ETH_ALEN);242 return hwrm_req_send(bp, req);243}244 245int bnxt_set_vf_vlan(struct net_device *dev, int vf_id, u16 vlan_id, u8 qos,246 __be16 vlan_proto)247{248 struct bnxt *bp = netdev_priv(dev);249 struct hwrm_func_cfg_input *req;250 struct bnxt_vf_info *vf;251 u16 vlan_tag;252 int rc;253 254 if (bp->hwrm_spec_code < 0x10201)255 return -ENOTSUPP;256 257 if (vlan_proto != htons(ETH_P_8021Q) &&258 (vlan_proto != htons(ETH_P_8021AD) ||259 !(bp->fw_cap & BNXT_FW_CAP_DFLT_VLAN_TPID_PCP)))260 return -EPROTONOSUPPORT;261 262 rc = bnxt_vf_ndo_prep(bp, vf_id);263 if (rc)264 return rc;265 266 if (vlan_id >= VLAN_N_VID || qos >= IEEE_8021Q_MAX_PRIORITIES ||267 (!vlan_id && qos))268 return -EINVAL;269 270 vf = &bp->pf.vf[vf_id];271 vlan_tag = vlan_id | (u16)qos << VLAN_PRIO_SHIFT;272 if (vlan_tag == vf->vlan)273 return 0;274 275 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req);276 if (!rc) {277 req->fid = cpu_to_le16(vf->fw_fid);278 req->dflt_vlan = cpu_to_le16(vlan_tag);279 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_VLAN);280 if (bp->fw_cap & BNXT_FW_CAP_DFLT_VLAN_TPID_PCP) {281 req->enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_TPID);282 req->tpid = vlan_proto;283 }284 rc = hwrm_req_send(bp, req);285 if (!rc)286 vf->vlan = vlan_tag;287 }288 return rc;289}290 291int bnxt_set_vf_bw(struct net_device *dev, int vf_id, int min_tx_rate,292 int max_tx_rate)293{294 struct bnxt *bp = netdev_priv(dev);295 struct hwrm_func_cfg_input *req;296 struct bnxt_vf_info *vf;297 u32 pf_link_speed;298 int rc;299 300 rc = bnxt_vf_ndo_prep(bp, vf_id);301 if (rc)302 return rc;303 304 vf = &bp->pf.vf[vf_id];305 pf_link_speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed);306 if (max_tx_rate > pf_link_speed) {307 netdev_info(bp->dev, "max tx rate %d exceed PF link speed for VF %d\n",308 max_tx_rate, vf_id);309 return -EINVAL;310 }311 312 if (min_tx_rate > pf_link_speed) {313 netdev_info(bp->dev, "min tx rate %d is invalid for VF %d\n",314 min_tx_rate, vf_id);315 return -EINVAL;316 }317 if (min_tx_rate == vf->min_tx_rate && max_tx_rate == vf->max_tx_rate)318 return 0;319 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req);320 if (!rc) {321 req->fid = cpu_to_le16(vf->fw_fid);322 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_MAX_BW |323 FUNC_CFG_REQ_ENABLES_MIN_BW);324 req->max_bw = cpu_to_le32(max_tx_rate);325 req->min_bw = cpu_to_le32(min_tx_rate);326 rc = hwrm_req_send(bp, req);327 if (!rc) {328 vf->min_tx_rate = min_tx_rate;329 vf->max_tx_rate = max_tx_rate;330 }331 }332 return rc;333}334 335int bnxt_set_vf_link_state(struct net_device *dev, int vf_id, int link)336{337 struct bnxt *bp = netdev_priv(dev);338 struct bnxt_vf_info *vf;339 int rc;340 341 rc = bnxt_vf_ndo_prep(bp, vf_id);342 if (rc)343 return rc;344 345 vf = &bp->pf.vf[vf_id];346 347 vf->flags &= ~(BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED);348 switch (link) {349 case IFLA_VF_LINK_STATE_AUTO:350 vf->flags |= BNXT_VF_LINK_UP;351 break;352 case IFLA_VF_LINK_STATE_DISABLE:353 vf->flags |= BNXT_VF_LINK_FORCED;354 break;355 case IFLA_VF_LINK_STATE_ENABLE:356 vf->flags |= BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED;357 break;358 default:359 netdev_err(bp->dev, "Invalid link option\n");360 rc = -EINVAL;361 break;362 }363 if (vf->flags & (BNXT_VF_LINK_UP | BNXT_VF_LINK_FORCED))364 rc = bnxt_hwrm_fwd_async_event_cmpl(bp, vf,365 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE);366 return rc;367}368 369static int bnxt_set_vf_attr(struct bnxt *bp, int num_vfs)370{371 int i;372 struct bnxt_vf_info *vf;373 374 for (i = 0; i < num_vfs; i++) {375 vf = &bp->pf.vf[i];376 memset(vf, 0, sizeof(*vf));377 }378 return 0;379}380 381static int bnxt_hwrm_func_vf_resource_free(struct bnxt *bp, int num_vfs)382{383 struct hwrm_func_vf_resc_free_input *req;384 struct bnxt_pf_info *pf = &bp->pf;385 int i, rc;386 387 rc = hwrm_req_init(bp, req, HWRM_FUNC_VF_RESC_FREE);388 if (rc)389 return rc;390 391 hwrm_req_hold(bp, req);392 for (i = pf->first_vf_id; i < pf->first_vf_id + num_vfs; i++) {393 req->vf_id = cpu_to_le16(i);394 rc = hwrm_req_send(bp, req);395 if (rc)396 break;397 }398 hwrm_req_drop(bp, req);399 return rc;400}401 402static void bnxt_free_vf_resources(struct bnxt *bp)403{404 struct pci_dev *pdev = bp->pdev;405 int i;406 407 kfree(bp->pf.vf_event_bmap);408 bp->pf.vf_event_bmap = NULL;409 410 for (i = 0; i < 4; i++) {411 if (bp->pf.hwrm_cmd_req_addr[i]) {412 dma_free_coherent(&pdev->dev, BNXT_PAGE_SIZE,413 bp->pf.hwrm_cmd_req_addr[i],414 bp->pf.hwrm_cmd_req_dma_addr[i]);415 bp->pf.hwrm_cmd_req_addr[i] = NULL;416 }417 }418 419 bp->pf.active_vfs = 0;420 kfree(bp->pf.vf);421 bp->pf.vf = NULL;422}423 424static int bnxt_alloc_vf_resources(struct bnxt *bp, int num_vfs)425{426 struct pci_dev *pdev = bp->pdev;427 u32 nr_pages, size, i, j, k = 0;428 429 bp->pf.vf = kcalloc(num_vfs, sizeof(struct bnxt_vf_info), GFP_KERNEL);430 if (!bp->pf.vf)431 return -ENOMEM;432 433 bnxt_set_vf_attr(bp, num_vfs);434 435 size = num_vfs * BNXT_HWRM_REQ_MAX_SIZE;436 nr_pages = size / BNXT_PAGE_SIZE;437 if (size & (BNXT_PAGE_SIZE - 1))438 nr_pages++;439 440 for (i = 0; i < nr_pages; i++) {441 bp->pf.hwrm_cmd_req_addr[i] =442 dma_alloc_coherent(&pdev->dev, BNXT_PAGE_SIZE,443 &bp->pf.hwrm_cmd_req_dma_addr[i],444 GFP_KERNEL);445 446 if (!bp->pf.hwrm_cmd_req_addr[i])447 return -ENOMEM;448 449 for (j = 0; j < BNXT_HWRM_REQS_PER_PAGE && k < num_vfs; j++) {450 struct bnxt_vf_info *vf = &bp->pf.vf[k];451 452 vf->hwrm_cmd_req_addr = bp->pf.hwrm_cmd_req_addr[i] +453 j * BNXT_HWRM_REQ_MAX_SIZE;454 vf->hwrm_cmd_req_dma_addr =455 bp->pf.hwrm_cmd_req_dma_addr[i] + j *456 BNXT_HWRM_REQ_MAX_SIZE;457 k++;458 }459 }460 461 /* Max 128 VF's */462 bp->pf.vf_event_bmap = kzalloc(16, GFP_KERNEL);463 if (!bp->pf.vf_event_bmap)464 return -ENOMEM;465 466 bp->pf.hwrm_cmd_req_pages = nr_pages;467 return 0;468}469 470static int bnxt_hwrm_func_buf_rgtr(struct bnxt *bp)471{472 struct hwrm_func_buf_rgtr_input *req;473 int rc;474 475 rc = hwrm_req_init(bp, req, HWRM_FUNC_BUF_RGTR);476 if (rc)477 return rc;478 479 req->req_buf_num_pages = cpu_to_le16(bp->pf.hwrm_cmd_req_pages);480 req->req_buf_page_size = cpu_to_le16(BNXT_PAGE_SHIFT);481 req->req_buf_len = cpu_to_le16(BNXT_HWRM_REQ_MAX_SIZE);482 req->req_buf_page_addr0 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[0]);483 req->req_buf_page_addr1 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[1]);484 req->req_buf_page_addr2 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[2]);485 req->req_buf_page_addr3 = cpu_to_le64(bp->pf.hwrm_cmd_req_dma_addr[3]);486 487 return hwrm_req_send(bp, req);488}489 490static int __bnxt_set_vf_params(struct bnxt *bp, int vf_id)491{492 struct hwrm_func_cfg_input *req;493 struct bnxt_vf_info *vf;494 int rc;495 496 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req);497 if (rc)498 return rc;499 500 vf = &bp->pf.vf[vf_id];501 req->fid = cpu_to_le16(vf->fw_fid);502 503 if (is_valid_ether_addr(vf->mac_addr)) {504 req->enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_MAC_ADDR);505 memcpy(req->dflt_mac_addr, vf->mac_addr, ETH_ALEN);506 }507 if (vf->vlan) {508 req->enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_DFLT_VLAN);509 req->dflt_vlan = cpu_to_le16(vf->vlan);510 }511 if (vf->max_tx_rate) {512 req->enables |= cpu_to_le32(FUNC_CFG_REQ_ENABLES_MAX_BW |513 FUNC_CFG_REQ_ENABLES_MIN_BW);514 req->max_bw = cpu_to_le32(vf->max_tx_rate);515 req->min_bw = cpu_to_le32(vf->min_tx_rate);516 }517 if (vf->flags & BNXT_VF_TRUST)518 req->flags |= cpu_to_le32(FUNC_CFG_REQ_FLAGS_TRUSTED_VF_ENABLE);519 520 return hwrm_req_send(bp, req);521}522 523/* Only called by PF to reserve resources for VFs, returns actual number of524 * VFs configured, or < 0 on error.525 */526static int bnxt_hwrm_func_vf_resc_cfg(struct bnxt *bp, int num_vfs, bool reset)527{528 struct hwrm_func_vf_resource_cfg_input *req;529 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;530 u16 vf_tx_rings, vf_rx_rings, vf_cp_rings;531 u16 vf_stat_ctx, vf_vnics, vf_ring_grps;532 struct bnxt_pf_info *pf = &bp->pf;533 int i, rc = 0, min = 1;534 u16 vf_msix = 0;535 u16 vf_rss;536 537 rc = hwrm_req_init(bp, req, HWRM_FUNC_VF_RESOURCE_CFG);538 if (rc)539 return rc;540 541 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) {542 vf_msix = hw_resc->max_nqs - bnxt_nq_rings_in_use(bp);543 vf_ring_grps = 0;544 } else {545 vf_ring_grps = hw_resc->max_hw_ring_grps - bp->rx_nr_rings;546 }547 vf_cp_rings = bnxt_get_avail_cp_rings_for_en(bp);548 vf_stat_ctx = bnxt_get_avail_stat_ctxs_for_en(bp);549 if (bp->flags & BNXT_FLAG_AGG_RINGS)550 vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings * 2;551 else552 vf_rx_rings = hw_resc->max_rx_rings - bp->rx_nr_rings;553 vf_tx_rings = hw_resc->max_tx_rings - bp->tx_nr_rings;554 vf_vnics = hw_resc->max_vnics - bp->nr_vnics;555 vf_rss = hw_resc->max_rsscos_ctxs - bp->rsscos_nr_ctxs;556 557 req->min_rsscos_ctx = cpu_to_le16(BNXT_VF_MIN_RSS_CTX);558 if (pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) {559 min = 0;560 req->min_rsscos_ctx = cpu_to_le16(min);561 }562 if (pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL ||563 pf->vf_resv_strategy == BNXT_VF_RESV_STRATEGY_MINIMAL_STATIC) {564 req->min_cmpl_rings = cpu_to_le16(min);565 req->min_tx_rings = cpu_to_le16(min);566 req->min_rx_rings = cpu_to_le16(min);567 req->min_l2_ctxs = cpu_to_le16(min);568 req->min_vnics = cpu_to_le16(min);569 req->min_stat_ctx = cpu_to_le16(min);570 if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS))571 req->min_hw_ring_grps = cpu_to_le16(min);572 } else {573 vf_cp_rings /= num_vfs;574 vf_tx_rings /= num_vfs;575 vf_rx_rings /= num_vfs;576 if ((bp->fw_cap & BNXT_FW_CAP_PRE_RESV_VNICS) &&577 vf_vnics >= pf->max_vfs) {578 /* Take into account that FW has pre-reserved 1 VNIC for579 * each pf->max_vfs.580 */581 vf_vnics = (vf_vnics - pf->max_vfs + num_vfs) / num_vfs;582 } else {583 vf_vnics /= num_vfs;584 }585 vf_stat_ctx /= num_vfs;586 vf_ring_grps /= num_vfs;587 vf_rss /= num_vfs;588 589 vf_vnics = min_t(u16, vf_vnics, vf_rx_rings);590 req->min_cmpl_rings = cpu_to_le16(vf_cp_rings);591 req->min_tx_rings = cpu_to_le16(vf_tx_rings);592 req->min_rx_rings = cpu_to_le16(vf_rx_rings);593 req->min_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);594 req->min_vnics = cpu_to_le16(vf_vnics);595 req->min_stat_ctx = cpu_to_le16(vf_stat_ctx);596 req->min_hw_ring_grps = cpu_to_le16(vf_ring_grps);597 req->min_rsscos_ctx = cpu_to_le16(vf_rss);598 }599 req->max_cmpl_rings = cpu_to_le16(vf_cp_rings);600 req->max_tx_rings = cpu_to_le16(vf_tx_rings);601 req->max_rx_rings = cpu_to_le16(vf_rx_rings);602 req->max_l2_ctxs = cpu_to_le16(BNXT_VF_MAX_L2_CTX);603 req->max_vnics = cpu_to_le16(vf_vnics);604 req->max_stat_ctx = cpu_to_le16(vf_stat_ctx);605 req->max_hw_ring_grps = cpu_to_le16(vf_ring_grps);606 req->max_rsscos_ctx = cpu_to_le16(vf_rss);607 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS)608 req->max_msix = cpu_to_le16(vf_msix / num_vfs);609 610 hwrm_req_hold(bp, req);611 for (i = 0; i < num_vfs; i++) {612 if (reset)613 __bnxt_set_vf_params(bp, i);614 615 req->vf_id = cpu_to_le16(pf->first_vf_id + i);616 rc = hwrm_req_send(bp, req);617 if (rc)618 break;619 pf->active_vfs = i + 1;620 pf->vf[i].fw_fid = pf->first_vf_id + i;621 }622 623 if (pf->active_vfs) {624 u16 n = pf->active_vfs;625 626 hw_resc->max_tx_rings -= le16_to_cpu(req->min_tx_rings) * n;627 hw_resc->max_rx_rings -= le16_to_cpu(req->min_rx_rings) * n;628 hw_resc->max_hw_ring_grps -=629 le16_to_cpu(req->min_hw_ring_grps) * n;630 hw_resc->max_cp_rings -= le16_to_cpu(req->min_cmpl_rings) * n;631 hw_resc->max_rsscos_ctxs -=632 le16_to_cpu(req->min_rsscos_ctx) * n;633 hw_resc->max_stat_ctxs -= le16_to_cpu(req->min_stat_ctx) * n;634 hw_resc->max_vnics -= le16_to_cpu(req->min_vnics) * n;635 if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS)636 hw_resc->max_nqs -= vf_msix;637 638 rc = pf->active_vfs;639 }640 hwrm_req_drop(bp, req);641 return rc;642}643 644/* Only called by PF to reserve resources for VFs, returns actual number of645 * VFs configured, or < 0 on error.646 */647static int bnxt_hwrm_func_cfg(struct bnxt *bp, int num_vfs)648{649 u16 vf_tx_rings, vf_rx_rings, vf_cp_rings, vf_stat_ctx, vf_vnics;650 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;651 struct bnxt_pf_info *pf = &bp->pf;652 struct hwrm_func_cfg_input *req;653 int total_vf_tx_rings = 0;654 u16 vf_ring_grps;655 u32 mtu, i;656 int rc;657 658 rc = bnxt_hwrm_func_cfg_short_req_init(bp, &req);659 if (rc)660 return rc;661 662 /* Remaining rings are distributed equally amongs VF's for now */663 vf_cp_rings = bnxt_get_avail_cp_rings_for_en(bp) / num_vfs;664 vf_stat_ctx = bnxt_get_avail_stat_ctxs_for_en(bp) / num_vfs;665 if (bp->flags & BNXT_FLAG_AGG_RINGS)666 vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings * 2) /667 num_vfs;668 else669 vf_rx_rings = (hw_resc->max_rx_rings - bp->rx_nr_rings) /670 num_vfs;671 vf_ring_grps = (hw_resc->max_hw_ring_grps - bp->rx_nr_rings) / num_vfs;672 vf_tx_rings = (hw_resc->max_tx_rings - bp->tx_nr_rings) / num_vfs;673 vf_vnics = (hw_resc->max_vnics - bp->nr_vnics) / num_vfs;674 vf_vnics = min_t(u16, vf_vnics, vf_rx_rings);675 676 req->enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ADMIN_MTU |677 FUNC_CFG_REQ_ENABLES_MRU |678 FUNC_CFG_REQ_ENABLES_NUM_RSSCOS_CTXS |679 FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS |680 FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS |681 FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS |682 FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS |683 FUNC_CFG_REQ_ENABLES_NUM_L2_CTXS |684 FUNC_CFG_REQ_ENABLES_NUM_VNICS |685 FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS);686 687 mtu = bp->dev->mtu + ETH_HLEN + VLAN_HLEN;688 req->mru = cpu_to_le16(mtu);689 req->admin_mtu = cpu_to_le16(mtu);690 691 req->num_rsscos_ctxs = cpu_to_le16(1);692 req->num_cmpl_rings = cpu_to_le16(vf_cp_rings);693 req->num_tx_rings = cpu_to_le16(vf_tx_rings);694 req->num_rx_rings = cpu_to_le16(vf_rx_rings);695 req->num_hw_ring_grps = cpu_to_le16(vf_ring_grps);696 req->num_l2_ctxs = cpu_to_le16(4);697 698 req->num_vnics = cpu_to_le16(vf_vnics);699 /* FIXME spec currently uses 1 bit for stats ctx */700 req->num_stat_ctxs = cpu_to_le16(vf_stat_ctx);701 702 hwrm_req_hold(bp, req);703 for (i = 0; i < num_vfs; i++) {704 int vf_tx_rsvd = vf_tx_rings;705 706 req->fid = cpu_to_le16(pf->first_vf_id + i);707 rc = hwrm_req_send(bp, req);708 if (rc)709 break;710 pf->active_vfs = i + 1;711 pf->vf[i].fw_fid = le16_to_cpu(req->fid);712 rc = __bnxt_hwrm_get_tx_rings(bp, pf->vf[i].fw_fid,713 &vf_tx_rsvd);714 if (rc)715 break;716 total_vf_tx_rings += vf_tx_rsvd;717 }718 hwrm_req_drop(bp, req);719 if (pf->active_vfs) {720 hw_resc->max_tx_rings -= total_vf_tx_rings;721 hw_resc->max_rx_rings -= vf_rx_rings * num_vfs;722 hw_resc->max_hw_ring_grps -= vf_ring_grps * num_vfs;723 hw_resc->max_cp_rings -= vf_cp_rings * num_vfs;724 hw_resc->max_rsscos_ctxs -= num_vfs;725 hw_resc->max_stat_ctxs -= vf_stat_ctx * num_vfs;726 hw_resc->max_vnics -= vf_vnics * num_vfs;727 rc = pf->active_vfs;728 }729 return rc;730}731 732static int bnxt_func_cfg(struct bnxt *bp, int num_vfs, bool reset)733{734 if (BNXT_NEW_RM(bp))735 return bnxt_hwrm_func_vf_resc_cfg(bp, num_vfs, reset);736 else737 return bnxt_hwrm_func_cfg(bp, num_vfs);738}739 740int bnxt_cfg_hw_sriov(struct bnxt *bp, int *num_vfs, bool reset)741{742 int rc;743 744 /* Register buffers for VFs */745 rc = bnxt_hwrm_func_buf_rgtr(bp);746 if (rc)747 return rc;748 749 /* Reserve resources for VFs */750 rc = bnxt_func_cfg(bp, *num_vfs, reset);751 if (rc != *num_vfs) {752 if (rc <= 0) {753 netdev_warn(bp->dev, "Unable to reserve resources for SRIOV.\n");754 *num_vfs = 0;755 return rc;756 }757 netdev_warn(bp->dev, "Only able to reserve resources for %d VFs.\n",758 rc);759 *num_vfs = rc;760 }761 762 return 0;763}764 765static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs)766{767 int rc = 0, vfs_supported;768 int min_rx_rings, min_tx_rings, min_rss_ctxs;769 struct bnxt_hw_resc *hw_resc = &bp->hw_resc;770 int tx_ok = 0, rx_ok = 0, rss_ok = 0;771 int avail_cp, avail_stat;772 773 /* Check if we can enable requested num of vf's. At a mininum774 * we require 1 RX 1 TX rings for each VF. In this minimum conf775 * features like TPA will not be available.776 */777 vfs_supported = *num_vfs;778 779 avail_cp = bnxt_get_avail_cp_rings_for_en(bp);780 avail_stat = bnxt_get_avail_stat_ctxs_for_en(bp);781 avail_cp = min_t(int, avail_cp, avail_stat);782 783 while (vfs_supported) {784 min_rx_rings = vfs_supported;785 min_tx_rings = vfs_supported;786 min_rss_ctxs = vfs_supported;787 788 if (bp->flags & BNXT_FLAG_AGG_RINGS) {789 if (hw_resc->max_rx_rings - bp->rx_nr_rings * 2 >=790 min_rx_rings)791 rx_ok = 1;792 } else {793 if (hw_resc->max_rx_rings - bp->rx_nr_rings >=794 min_rx_rings)795 rx_ok = 1;796 }797 if (hw_resc->max_vnics - bp->nr_vnics < min_rx_rings ||798 avail_cp < min_rx_rings)799 rx_ok = 0;800 801 if (hw_resc->max_tx_rings - bp->tx_nr_rings >= min_tx_rings &&802 avail_cp >= min_tx_rings)803 tx_ok = 1;804 805 if (hw_resc->max_rsscos_ctxs - bp->rsscos_nr_ctxs >=806 min_rss_ctxs)807 rss_ok = 1;808 809 if (tx_ok && rx_ok && rss_ok)810 break;811 812 vfs_supported--;813 }814 815 if (!vfs_supported) {816 netdev_err(bp->dev, "Cannot enable VF's as all resources are used by PF\n");817 return -EINVAL;818 }819 820 if (vfs_supported != *num_vfs) {821 netdev_info(bp->dev, "Requested VFs %d, can enable %d\n",822 *num_vfs, vfs_supported);823 *num_vfs = vfs_supported;824 }825 826 rc = bnxt_alloc_vf_resources(bp, *num_vfs);827 if (rc)828 goto err_out1;829 830 rc = bnxt_cfg_hw_sriov(bp, num_vfs, false);831 if (rc)832 goto err_out2;833 834 rc = pci_enable_sriov(bp->pdev, *num_vfs);835 if (rc)836 goto err_out2;837 838 if (bp->eswitch_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV)839 return 0;840 841 /* Create representors for VFs in switchdev mode */842 devl_lock(bp->dl);843 rc = bnxt_vf_reps_create(bp);844 devl_unlock(bp->dl);845 if (rc) {846 netdev_info(bp->dev, "Cannot enable VFS as representors cannot be created\n");847 goto err_out3;848 }849 850 return 0;851 852err_out3:853 /* Disable SR-IOV */854 pci_disable_sriov(bp->pdev);855 856err_out2:857 /* Free the resources reserved for various VF's */858 bnxt_hwrm_func_vf_resource_free(bp, *num_vfs);859 860 /* Restore the max resources */861 bnxt_hwrm_func_qcaps(bp);862 863err_out1:864 bnxt_free_vf_resources(bp);865 866 return rc;867}868 869void bnxt_sriov_disable(struct bnxt *bp)870{871 u16 num_vfs = pci_num_vf(bp->pdev);872 873 if (!num_vfs)874 return;875 876 /* synchronize VF and VF-rep create and destroy */877 devl_lock(bp->dl);878 bnxt_vf_reps_destroy(bp);879 880 if (pci_vfs_assigned(bp->pdev)) {881 bnxt_hwrm_fwd_async_event_cmpl(882 bp, NULL, ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD);883 netdev_warn(bp->dev, "Unable to free %d VFs because some are assigned to VMs.\n",884 num_vfs);885 } else {886 pci_disable_sriov(bp->pdev);887 /* Free the HW resources reserved for various VF's */888 bnxt_hwrm_func_vf_resource_free(bp, num_vfs);889 }890 devl_unlock(bp->dl);891 892 bnxt_free_vf_resources(bp);893 894 /* Reclaim all resources for the PF. */895 rtnl_lock();896 bnxt_restore_pf_fw_resources(bp);897 rtnl_unlock();898}899 900int bnxt_sriov_configure(struct pci_dev *pdev, int num_vfs)901{902 struct net_device *dev = pci_get_drvdata(pdev);903 struct bnxt *bp = netdev_priv(dev);904 905 rtnl_lock();906 if (!netif_running(dev)) {907 netdev_warn(dev, "Reject SRIOV config request since if is down!\n");908 rtnl_unlock();909 return 0;910 }911 if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state)) {912 netdev_warn(dev, "Reject SRIOV config request when FW reset is in progress\n");913 rtnl_unlock();914 return 0;915 }916 bp->sriov_cfg = true;917 rtnl_unlock();918 919 if (pci_vfs_assigned(bp->pdev)) {920 netdev_warn(dev, "Unable to configure SRIOV since some VFs are assigned to VMs.\n");921 num_vfs = 0;922 goto sriov_cfg_exit;923 }924 925 /* Check if enabled VFs is same as requested */926 if (num_vfs && num_vfs == bp->pf.active_vfs)927 goto sriov_cfg_exit;928 929 /* if there are previous existing VFs, clean them up */930 bnxt_sriov_disable(bp);931 if (!num_vfs)932 goto sriov_cfg_exit;933 934 bnxt_sriov_enable(bp, &num_vfs);935 936sriov_cfg_exit:937 bp->sriov_cfg = false;938 wake_up(&bp->sriov_cfg_wait);939 940 return num_vfs;941}942 943static int bnxt_hwrm_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,944 void *encap_resp, __le64 encap_resp_addr,945 __le16 encap_resp_cpr, u32 msg_size)946{947 struct hwrm_fwd_resp_input *req;948 int rc;949 950 if (BNXT_FWD_RESP_SIZE_ERR(msg_size)) {951 netdev_warn_once(bp->dev, "HWRM fwd response too big (%d bytes)\n",952 msg_size);953 return -EINVAL;954 }955 956 rc = hwrm_req_init(bp, req, HWRM_FWD_RESP);957 if (!rc) {958 /* Set the new target id */959 req->target_id = cpu_to_le16(vf->fw_fid);960 req->encap_resp_target_id = cpu_to_le16(vf->fw_fid);961 req->encap_resp_len = cpu_to_le16(msg_size);962 req->encap_resp_addr = encap_resp_addr;963 req->encap_resp_cmpl_ring = encap_resp_cpr;964 memcpy(req->encap_resp, encap_resp, msg_size);965 966 rc = hwrm_req_send(bp, req);967 }968 if (rc)969 netdev_err(bp->dev, "hwrm_fwd_resp failed. rc:%d\n", rc);970 return rc;971}972 973static int bnxt_hwrm_fwd_err_resp(struct bnxt *bp, struct bnxt_vf_info *vf,974 u32 msg_size)975{976 struct hwrm_reject_fwd_resp_input *req;977 int rc;978 979 if (BNXT_REJ_FWD_RESP_SIZE_ERR(msg_size))980 return -EINVAL;981 982 rc = hwrm_req_init(bp, req, HWRM_REJECT_FWD_RESP);983 if (!rc) {984 /* Set the new target id */985 req->target_id = cpu_to_le16(vf->fw_fid);986 req->encap_resp_target_id = cpu_to_le16(vf->fw_fid);987 memcpy(req->encap_request, vf->hwrm_cmd_req_addr, msg_size);988 989 rc = hwrm_req_send(bp, req);990 }991 if (rc)992 netdev_err(bp->dev, "hwrm_fwd_err_resp failed. rc:%d\n", rc);993 return rc;994}995 996static int bnxt_hwrm_exec_fwd_resp(struct bnxt *bp, struct bnxt_vf_info *vf,997 u32 msg_size)998{999 struct hwrm_exec_fwd_resp_input *req;1000 int rc;1001 1002 if (BNXT_EXEC_FWD_RESP_SIZE_ERR(msg_size))1003 return -EINVAL;1004 1005 rc = hwrm_req_init(bp, req, HWRM_EXEC_FWD_RESP);1006 if (!rc) {1007 /* Set the new target id */1008 req->target_id = cpu_to_le16(vf->fw_fid);1009 req->encap_resp_target_id = cpu_to_le16(vf->fw_fid);1010 memcpy(req->encap_request, vf->hwrm_cmd_req_addr, msg_size);1011 1012 rc = hwrm_req_send(bp, req);1013 }1014 if (rc)1015 netdev_err(bp->dev, "hwrm_exec_fw_resp failed. rc:%d\n", rc);1016 return rc;1017}1018 1019static int bnxt_vf_configure_mac(struct bnxt *bp, struct bnxt_vf_info *vf)1020{1021 u32 msg_size = sizeof(struct hwrm_func_vf_cfg_input);1022 struct hwrm_func_vf_cfg_input *req =1023 (struct hwrm_func_vf_cfg_input *)vf->hwrm_cmd_req_addr;1024 1025 /* Allow VF to set a valid MAC address, if trust is set to on or1026 * if the PF assigned MAC address is zero1027 */1028 if (req->enables & cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR)) {1029 bool trust = bnxt_is_trusted_vf(bp, vf);1030 1031 if (is_valid_ether_addr(req->dflt_mac_addr) &&1032 (trust || !is_valid_ether_addr(vf->mac_addr) ||1033 ether_addr_equal(req->dflt_mac_addr, vf->mac_addr))) {1034 ether_addr_copy(vf->vf_mac_addr, req->dflt_mac_addr);1035 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);1036 }1037 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);1038 }1039 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);1040}1041 1042static int bnxt_vf_validate_set_mac(struct bnxt *bp, struct bnxt_vf_info *vf)1043{1044 u32 msg_size = sizeof(struct hwrm_cfa_l2_filter_alloc_input);1045 struct hwrm_cfa_l2_filter_alloc_input *req =1046 (struct hwrm_cfa_l2_filter_alloc_input *)vf->hwrm_cmd_req_addr;1047 bool mac_ok = false;1048 1049 if (!is_valid_ether_addr((const u8 *)req->l2_addr))1050 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);1051 1052 /* Allow VF to set a valid MAC address, if trust is set to on.1053 * Or VF MAC address must first match MAC address in PF's context.1054 * Otherwise, it must match the VF MAC address if firmware spec >=1055 * 1.2.21056 */1057 if (bnxt_is_trusted_vf(bp, vf)) {1058 mac_ok = true;1059 } else if (is_valid_ether_addr(vf->mac_addr)) {1060 if (ether_addr_equal((const u8 *)req->l2_addr, vf->mac_addr))1061 mac_ok = true;1062 } else if (is_valid_ether_addr(vf->vf_mac_addr)) {1063 if (ether_addr_equal((const u8 *)req->l2_addr, vf->vf_mac_addr))1064 mac_ok = true;1065 } else {1066 /* There are two cases:1067 * 1.If firmware spec < 0x10202,VF MAC address is not forwarded1068 * to the PF and so it doesn't have to match1069 * 2.Allow VF to modify it's own MAC when PF has not assigned a1070 * valid MAC address and firmware spec >= 0x102021071 */1072 mac_ok = true;1073 }1074 if (mac_ok)1075 return bnxt_hwrm_exec_fwd_resp(bp, vf, msg_size);1076 return bnxt_hwrm_fwd_err_resp(bp, vf, msg_size);1077}1078 1079static int bnxt_vf_set_link(struct bnxt *bp, struct bnxt_vf_info *vf)1080{1081 int rc = 0;1082 1083 if (!(vf->flags & BNXT_VF_LINK_FORCED)) {1084 /* real link */1085 rc = bnxt_hwrm_exec_fwd_resp(1086 bp, vf, sizeof(struct hwrm_port_phy_qcfg_input));1087 } else {1088 struct hwrm_port_phy_qcfg_output_compat phy_qcfg_resp = {};1089 struct hwrm_port_phy_qcfg_input *phy_qcfg_req;1090 1091 phy_qcfg_req =1092 (struct hwrm_port_phy_qcfg_input *)vf->hwrm_cmd_req_addr;1093 mutex_lock(&bp->link_lock);1094 memcpy(&phy_qcfg_resp, &bp->link_info.phy_qcfg_resp,1095 sizeof(phy_qcfg_resp));1096 mutex_unlock(&bp->link_lock);1097 phy_qcfg_resp.resp_len = cpu_to_le16(sizeof(phy_qcfg_resp));1098 phy_qcfg_resp.seq_id = phy_qcfg_req->seq_id;1099 /* New SPEEDS2 fields are beyond the legacy structure, so1100 * clear the SPEEDS2_SUPPORTED flag.1101 */1102 phy_qcfg_resp.option_flags &=1103 ~PORT_PHY_QCAPS_RESP_FLAGS2_SPEEDS2_SUPPORTED;1104 phy_qcfg_resp.valid = 1;1105 1106 if (vf->flags & BNXT_VF_LINK_UP) {1107 /* if physical link is down, force link up on VF */1108 if (phy_qcfg_resp.link !=1109 PORT_PHY_QCFG_RESP_LINK_LINK) {1110 phy_qcfg_resp.link =1111 PORT_PHY_QCFG_RESP_LINK_LINK;1112 phy_qcfg_resp.link_speed = cpu_to_le16(1113 PORT_PHY_QCFG_RESP_LINK_SPEED_10GB);1114 phy_qcfg_resp.duplex_cfg =1115 PORT_PHY_QCFG_RESP_DUPLEX_CFG_FULL;1116 phy_qcfg_resp.duplex_state =1117 PORT_PHY_QCFG_RESP_DUPLEX_STATE_FULL;1118 phy_qcfg_resp.pause =1119 (PORT_PHY_QCFG_RESP_PAUSE_TX |1120 PORT_PHY_QCFG_RESP_PAUSE_RX);1121 }1122 } else {1123 /* force link down */1124 phy_qcfg_resp.link = PORT_PHY_QCFG_RESP_LINK_NO_LINK;1125 phy_qcfg_resp.link_speed = 0;1126 phy_qcfg_resp.duplex_state =1127 PORT_PHY_QCFG_RESP_DUPLEX_STATE_HALF;1128 phy_qcfg_resp.pause = 0;1129 }1130 rc = bnxt_hwrm_fwd_resp(bp, vf, &phy_qcfg_resp,1131 phy_qcfg_req->resp_addr,1132 phy_qcfg_req->cmpl_ring,1133 sizeof(phy_qcfg_resp));1134 }1135 return rc;1136}1137 1138static int bnxt_vf_req_validate_snd(struct bnxt *bp, struct bnxt_vf_info *vf)1139{1140 int rc = 0;1141 struct input *encap_req = vf->hwrm_cmd_req_addr;1142 u32 req_type = le16_to_cpu(encap_req->req_type);1143 1144 switch (req_type) {1145 case HWRM_FUNC_VF_CFG:1146 rc = bnxt_vf_configure_mac(bp, vf);1147 break;1148 case HWRM_CFA_L2_FILTER_ALLOC:1149 rc = bnxt_vf_validate_set_mac(bp, vf);1150 break;1151 case HWRM_FUNC_CFG:1152 /* TODO Validate if VF is allowed to change mac address,1153 * mtu, num of rings etc1154 */1155 rc = bnxt_hwrm_exec_fwd_resp(1156 bp, vf, sizeof(struct hwrm_func_cfg_input));1157 break;1158 case HWRM_PORT_PHY_QCFG:1159 rc = bnxt_vf_set_link(bp, vf);1160 break;1161 default:1162 break;1163 }1164 return rc;1165}1166 1167void bnxt_hwrm_exec_fwd_req(struct bnxt *bp)1168{1169 u32 i = 0, active_vfs = bp->pf.active_vfs, vf_id;1170 1171 /* Scan through VF's and process commands */1172 while (1) {1173 vf_id = find_next_bit(bp->pf.vf_event_bmap, active_vfs, i);1174 if (vf_id >= active_vfs)1175 break;1176 1177 clear_bit(vf_id, bp->pf.vf_event_bmap);1178 bnxt_vf_req_validate_snd(bp, &bp->pf.vf[vf_id]);1179 i = vf_id + 1;1180 }1181}1182 1183int bnxt_approve_mac(struct bnxt *bp, const u8 *mac, bool strict)1184{1185 struct hwrm_func_vf_cfg_input *req;1186 int rc = 0;1187 1188 if (!BNXT_VF(bp))1189 return 0;1190 1191 if (bp->hwrm_spec_code < 0x10202) {1192 if (is_valid_ether_addr(bp->vf.mac_addr))1193 rc = -EADDRNOTAVAIL;1194 goto mac_done;1195 }1196 1197 rc = hwrm_req_init(bp, req, HWRM_FUNC_VF_CFG);1198 if (rc)1199 goto mac_done;1200 1201 req->enables = cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_DFLT_MAC_ADDR);1202 memcpy(req->dflt_mac_addr, mac, ETH_ALEN);1203 if (!strict)1204 hwrm_req_flags(bp, req, BNXT_HWRM_CTX_SILENT);1205 rc = hwrm_req_send(bp, req);1206mac_done:1207 if (rc && strict) {1208 rc = -EADDRNOTAVAIL;1209 netdev_warn(bp->dev, "VF MAC address %pM not approved by the PF\n",1210 mac);1211 return rc;1212 }1213 return 0;1214}1215 1216void bnxt_update_vf_mac(struct bnxt *bp)1217{1218 struct hwrm_func_qcaps_output *resp;1219 struct hwrm_func_qcaps_input *req;1220 bool inform_pf = false;1221 1222 if (hwrm_req_init(bp, req, HWRM_FUNC_QCAPS))1223 return;1224 1225 req->fid = cpu_to_le16(0xffff);1226 1227 resp = hwrm_req_hold(bp, req);1228 if (hwrm_req_send(bp, req))1229 goto update_vf_mac_exit;1230 1231 /* Store MAC address from the firmware. There are 2 cases:1232 * 1. MAC address is valid. It is assigned from the PF and we1233 * need to override the current VF MAC address with it.1234 * 2. MAC address is zero. The VF will use a random MAC address by1235 * default but the stored zero MAC will allow the VF user to change1236 * the random MAC address using ndo_set_mac_address() if he wants.1237 */1238 if (!ether_addr_equal(resp->mac_address, bp->vf.mac_addr)) {1239 memcpy(bp->vf.mac_addr, resp->mac_address, ETH_ALEN);1240 /* This means we are now using our own MAC address, let1241 * the PF know about this MAC address.1242 */1243 if (!is_valid_ether_addr(bp->vf.mac_addr))1244 inform_pf = true;1245 }1246 1247 /* overwrite netdev dev_addr with admin VF MAC */1248 if (is_valid_ether_addr(bp->vf.mac_addr))1249 eth_hw_addr_set(bp->dev, bp->vf.mac_addr);1250update_vf_mac_exit:1251 hwrm_req_drop(bp, req);1252 if (inform_pf)1253 bnxt_approve_mac(bp, bp->dev->dev_addr, false);1254}1255 1256#else1257 1258int bnxt_cfg_hw_sriov(struct bnxt *bp, int *num_vfs, bool reset)1259{1260 if (*num_vfs)1261 return -EOPNOTSUPP;1262 return 0;1263}1264 1265void bnxt_sriov_disable(struct bnxt *bp)1266{1267}1268 1269void bnxt_hwrm_exec_fwd_req(struct bnxt *bp)1270{1271 netdev_err(bp->dev, "Invalid VF message received when SRIOV is not enable\n");1272}1273 1274void bnxt_update_vf_mac(struct bnxt *bp)1275{1276}1277 1278int bnxt_approve_mac(struct bnxt *bp, const u8 *mac, bool strict)1279{1280 return 0;1281}1282#endif1283