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net: atlantic: Implement .ndo_xdp_xmit handler

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

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Taehee Yoo 2022-04-17 10:12:47 +00:00 committed by David S. Miller
parent 26efaef759
commit 45638f013a
3 changed files with 26 additions and 0 deletions
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1
drivers/net/ethernet/aquantia/atlantic/aq_main.c
View File

@ -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)

23
drivers/net/ethernet/aquantia/atlantic/aq_ring.c
View File

@ -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,

2
drivers/net/ethernet/aquantia/atlantic/aq_ring.h
View File

@ -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,