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| author | Taehee Yoo <ap420073@gmail.com> | 2022-04-17 12:12:47 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-20 11:42:57 +0200 |
| commit | 45638f013a63219378f7a2f9b49c5acbfe031c5a (patch) | |
| tree | 80abb6d381f95119f9e8742fafa63137ba1d0c99 /drivers/net | |
| parent | net: atlantic: Implement xdp data plane (diff) | |
| download | linux-45638f013a63219378f7a2f9b49c5acbfe031c5a.tar.xz linux-45638f013a63219378f7a2f9b49c5acbfe031c5a.zip | |
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: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/aq_main.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/aq_ring.c | 23 | ||||
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/aq_ring.h | 2 |
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_main.c b/drivers/net/ethernet/aquantia/atlantic/aq_main.c index e794ee25b12b..88595863d8bc 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_main.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_main.c @@ -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) diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c index 9bb9b764d31c..ea740210803f 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c @@ -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, diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h index 52f40ea3f1df..0a6c34438c1d 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h @@ -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, |