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authorTaehee Yoo <ap420073@gmail.com>2022-04-17 10:12:47 +0000
committerDavid S. Miller <davem@davemloft.net>2022-04-20 10:42:57 +0100
commit45638f013a63219378f7a2f9b49c5acbfe031c5a (patch)
tree80abb6d381f95119f9e8742fafa63137ba1d0c99
parent26efaef759a1bc43e819ee44cfd8a1fc4514e8c9 (diff)
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>
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/aq_main.c1
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/aq_ring.c23
-rw-r--r--drivers/net/ethernet/aquantia/atlantic/aq_ring.h2
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,