u8 __iomem * nfp_pf_map_rtsym(struct nfp_pf *pf, const char *name, const char *sym_fmt, unsigned int min_size, struct nfp_cpp_area **area) { char pf_symbol[256]; snprintf(pf_symbol, sizeof(pf_symbol), sym_fmt, nfp_cppcore_pcie_unit(pf->cpp)); return nfp_rtsym_map(pf->rtbl, pf_symbol, name, min_size, area); }
int nfp_pf_rtsym_read_optional(struct nfp_pf *pf, const char *format, unsigned int default_val) { char name[256]; int err = 0; u64 val; snprintf(name, sizeof(name), format, nfp_cppcore_pcie_unit(pf->cpp)); val = nfp_rtsym_read_le(pf->rtbl, name, &err); if (err) { if (err == -ENOENT) return default_val; nfp_err(pf->cpp, "Unable to read symbol %s\n", name); return err; } return val; }
static int nfp_flower_spawn_vnic_reprs(struct nfp_app *app, enum nfp_flower_cmsg_port_vnic_type vnic_type, enum nfp_repr_type repr_type, unsigned int cnt) { u8 nfp_pcie = nfp_cppcore_pcie_unit(app->pf->cpp); struct nfp_flower_priv *priv = app->priv; atomic_t *replies = &priv->reify_replies; struct nfp_flower_repr_priv *repr_priv; enum nfp_port_type port_type; struct nfp_repr *nfp_repr; struct nfp_reprs *reprs; int i, err, reify_cnt; const u8 queue = 0; port_type = repr_type == NFP_REPR_TYPE_PF ? NFP_PORT_PF_PORT : NFP_PORT_VF_PORT; reprs = nfp_reprs_alloc(cnt); if (!reprs) return -ENOMEM; for (i = 0; i < cnt; i++) { struct net_device *repr; struct nfp_port *port; u32 port_id; repr = nfp_repr_alloc(app); if (!repr) { err = -ENOMEM; goto err_reprs_clean; } repr_priv = kzalloc(sizeof(*repr_priv), GFP_KERNEL); if (!repr_priv) { err = -ENOMEM; goto err_reprs_clean; } nfp_repr = netdev_priv(repr); nfp_repr->app_priv = repr_priv; /* For now we only support 1 PF */ WARN_ON(repr_type == NFP_REPR_TYPE_PF && i); port = nfp_port_alloc(app, port_type, repr); if (IS_ERR(port)) { err = PTR_ERR(port); nfp_repr_free(repr); goto err_reprs_clean; } if (repr_type == NFP_REPR_TYPE_PF) { port->pf_id = i; port->vnic = priv->nn->dp.ctrl_bar; } else { port->pf_id = 0; port->vf_id = i; port->vnic = app->pf->vf_cfg_mem + i * NFP_NET_CFG_BAR_SZ; } eth_hw_addr_random(repr); port_id = nfp_flower_cmsg_pcie_port(nfp_pcie, vnic_type, i, queue); err = nfp_repr_init(app, repr, port_id, port, priv->nn->dp.netdev); if (err) { nfp_port_free(port); nfp_repr_free(repr); goto err_reprs_clean; } RCU_INIT_POINTER(reprs->reprs[i], repr); nfp_info(app->cpp, "%s%d Representor(%s) created\n", repr_type == NFP_REPR_TYPE_PF ? "PF" : "VF", i, repr->name); } nfp_app_reprs_set(app, repr_type, reprs); atomic_set(replies, 0); reify_cnt = nfp_flower_reprs_reify(app, repr_type, true); if (reify_cnt < 0) { err = reify_cnt; nfp_warn(app->cpp, "Failed to notify firmware about repr creation\n"); goto err_reprs_remove; } err = nfp_flower_wait_repr_reify(app, replies, reify_cnt); if (err) goto err_reprs_remove; return 0; err_reprs_remove: reprs = nfp_app_reprs_set(app, repr_type, NULL); err_reprs_clean: nfp_reprs_clean_and_free(app, reprs); return err; }