+
+static int
+cgx_change_mode(struct otx2_eth_dev *dev, struct cgx_set_link_mode_args *cfg)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+ struct cgx_set_link_mode_req *req;
+
+ req = otx2_mbox_alloc_msg_cgx_set_link_mode(mbox);
+ req->args.speed = cfg->speed;
+ req->args.duplex = cfg->duplex;
+ req->args.an = cfg->an;
+
+ return otx2_mbox_process(mbox);
+}
+
+#define SPEED_NONE 0
+static inline uint32_t
+nix_parse_link_speeds(struct otx2_eth_dev *dev, uint32_t link_speeds)
+{
+ uint32_t link_speed = SPEED_NONE;
+
+ /* 50G and 100G to be supported for board version C0 and above */
+ if (!otx2_dev_is_Ax(dev)) {
+ if (link_speeds & ETH_LINK_SPEED_100G)
+ link_speed = 100000;
+ if (link_speeds & ETH_LINK_SPEED_50G)
+ link_speed = 50000;
+ }
+ if (link_speeds & ETH_LINK_SPEED_40G)
+ link_speed = 40000;
+ if (link_speeds & ETH_LINK_SPEED_25G)
+ link_speed = 25000;
+ if (link_speeds & ETH_LINK_SPEED_20G)
+ link_speed = 20000;
+ if (link_speeds & ETH_LINK_SPEED_10G)
+ link_speed = 10000;
+ if (link_speeds & ETH_LINK_SPEED_5G)
+ link_speed = 5000;
+ if (link_speeds & ETH_LINK_SPEED_1G)
+ link_speed = 1000;
+
+ return link_speed;
+}
+
+static inline uint8_t
+nix_parse_eth_link_duplex(uint32_t link_speeds)
+{
+ if ((link_speeds & ETH_LINK_SPEED_10M_HD) ||
+ (link_speeds & ETH_LINK_SPEED_100M_HD))
+ return ETH_LINK_HALF_DUPLEX;
+ else
+ return ETH_LINK_FULL_DUPLEX;
+}
+
+int
+otx2_apply_link_speed(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct rte_eth_conf *conf = ð_dev->data->dev_conf;
+ struct cgx_set_link_mode_args cfg;
+
+ /* If VF/SDP/LBK, link attributes cannot be changed */
+ if (otx2_dev_is_vf_or_sdp(dev) || otx2_dev_is_lbk(dev))
+ return 0;
+
+ memset(&cfg, 0, sizeof(struct cgx_set_link_mode_args));
+ cfg.speed = nix_parse_link_speeds(dev, conf->link_speeds);
+ if (cfg.speed != SPEED_NONE && cfg.speed != dev->speed) {
+ cfg.duplex = nix_parse_eth_link_duplex(conf->link_speeds);
+ cfg.an = (conf->link_speeds & ETH_LINK_SPEED_FIXED) == 0;
+
+ return cgx_change_mode(dev, &cfg);
+ }
+ return 0;
+}