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;
}
