Commit 45638f01 authored by Taehee Yoo's avatar Taehee Yoo Committed by David S. Miller
Browse files

net: atlantic: Implement .ndo_xdp_xmit handler 



aq_xdp_xmit() is the callback function of .ndo_xdp_xmit.
It internally calls aq_nic_xmit_xdpf() to send packet.

Signed-off-by: default avatarTaehee Yoo <ap420073@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 26efaef7

drivers/net/ethernet/aquantia/atlantic/aq_main.c

+1 −0
Original line number Diff line number Diff line
@@ -508,6 +508,7 @@ static const struct net_device_ops aq_ndev_ops = { 
	.ndo_vlan_rx_kill_vid = aq_ndo_vlan_rx_kill_vid,

	.ndo_setup_tc = aq_ndo_setup_tc,

	.ndo_bpf = aq_xdp,

	.ndo_xdp_xmit = aq_xdp_xmit,

};



static int __init aq_ndev_init_module(void)

drivers/net/ethernet/aquantia/atlantic/aq_ring.c

+23 −0
Original line number Diff line number Diff line
@@ -389,6 +389,29 @@ static void aq_rx_checksum(struct aq_ring_s *self, 
		__skb_incr_checksum_unnecessary(skb);

}



int aq_xdp_xmit(struct net_device *dev, int num_frames,

		struct xdp_frame **frames, u32 flags)

{

	struct aq_nic_s *aq_nic = netdev_priv(dev);

	unsigned int vec, i, drop = 0;

	int cpu = smp_processor_id();

	struct aq_nic_cfg_s *aq_cfg;

	struct aq_ring_s *ring;



	aq_cfg = aq_nic_get_cfg(aq_nic);

	vec = cpu % aq_cfg->vecs;

	ring = aq_nic->aq_ring_tx[AQ_NIC_CFG_TCVEC2RING(aq_cfg, 0, vec)];



	for (i = 0; i < num_frames; i++) {

		struct xdp_frame *xdpf = frames[i];



		if (aq_nic_xmit_xdpf(aq_nic, ring, xdpf) == NETDEV_TX_BUSY)

			drop++;

	}



	return num_frames - drop;

}



static struct sk_buff *aq_xdp_run_prog(struct aq_nic_s *aq_nic,

				       struct xdp_buff *xdp,

				       struct aq_ring_s *rx_ring,

drivers/net/ethernet/aquantia/atlantic/aq_ring.h

+2 −0
Original line number Diff line number Diff line
@@ -199,6 +199,8 @@ void aq_ring_update_queue_state(struct aq_ring_s *ring); 
void aq_ring_queue_wake(struct aq_ring_s *ring);

void aq_ring_queue_stop(struct aq_ring_s *ring);

bool aq_ring_tx_clean(struct aq_ring_s *self);

int aq_xdp_xmit(struct net_device *dev, int num_frames,

		struct xdp_frame **frames, u32 flags);

int aq_ring_rx_clean(struct aq_ring_s *self,

		     struct napi_struct *napi,

		     int *work_done,