stmicro/stmmac/stmmac_xdp.c

9 static int stmmac_xdp_enable_pool(struct stmmac_priv *priv,
12 	struct stmmac_channel *ch = &priv->channel[queue];
17 	if (queue >= priv->plat->rx_queues_to_use ||
18 	    queue >= priv->plat->tx_queues_to_use)
28 	err = xsk_pool_dma_map(pool, priv->device, STMMAC_RX_DMA_ATTR);
30 		netdev_err(priv->dev, "Failed to map xsk pool\n");
34 	need_update = netif_running(priv->dev) && stmmac_xdp_is_enabled(priv);
39 		stmmac_disable_rx_queue(priv, queue);
40 		stmmac_disable_tx_queue(priv, queue);
43 	set_bit(queue, priv->af_xdp_zc_qps);
46 		stmmac_enable_rx_queue(priv, queue);
47 		stmmac_enable_tx_queue(priv, queue);
50 		err = stmmac_xsk_wakeup(priv->dev, queue, XDP_WAKEUP_RX);
58 static int stmmac_xdp_disable_pool(struct stmmac_priv *priv, u16 queue)
60 	struct stmmac_channel *ch = &priv->channel[queue];
64 	if (queue >= priv->plat->rx_queues_to_use ||
65 	    queue >= priv->plat->tx_queues_to_use)
68 	pool = xsk_get_pool_from_qid(priv->dev, queue);
72 	need_update = netif_running(priv->dev) && stmmac_xdp_is_enabled(priv);
76 		stmmac_disable_rx_queue(priv, queue);
77 		stmmac_disable_tx_queue(priv, queue);
83 	clear_bit(queue, priv->af_xdp_zc_qps);
86 		stmmac_enable_rx_queue(priv, queue);
87 		stmmac_enable_tx_queue(priv, queue);
95 int stmmac_xdp_setup_pool(struct stmmac_priv *priv, struct xsk_buff_pool *pool,
98 	return pool ? stmmac_xdp_enable_pool(priv, pool, queue) :
99 		      stmmac_xdp_disable_pool(priv, queue);
102 int stmmac_xdp_set_prog(struct stmmac_priv *priv, struct bpf_prog *prog,
105 	struct net_device *dev = priv->dev;
123 	need_update = !!priv->xdp_prog != !!prog;
127 	old_prog = xchg(&priv->xdp_prog, prog);
132 	priv->sph = priv->sph_cap && !stmmac_xdp_is_enabled(priv);