diff options
| author |   Jesper Dangaard Brouer <brouer@redhat.com> | 2020-05-14 12:50:13 +0200 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-05-14 21:21:55 -0700 |
| commit | 08fc1cfd2d250be853d33d6505ae11ff52b83b74 (patch) | |
| tree | 1016ab5fd555dac5c05409deb5e786e9a92eab28 /drivers | |
| parent | net: ethernet: ti: Add XDP frame size to driver cpsw (diff) | |
| download | wireguard-linux-08fc1cfd2d250be853d33d6505ae11ff52b83b74.tar.xz wireguard-linux-08fc1cfd2d250be853d33d6505ae11ff52b83b74.zip | |
ena: Add XDP frame size to amazon NIC driver
Frame size ENA_PAGE_SIZE is limited to 16K on systems with larger
PAGE_SIZE than 16K. Change ENA_XDP_MAX_MTU to also take into account
the reserved tailroom.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Sameeh Jubran <sameehj@amazon.com>
Cc: Arthur Kiyanovski <akiyano@amazon.com>
Link: https://lore.kernel.org/bpf/158945341384.97035.907403694833419456.stgit@firesoul
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.h | 5 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 2818965427e9..85b87ed02dd5 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -1606,6 +1606,7 @@ static int ena_clean_rx_irq(struct ena_ring *rx_ring, struct napi_struct *napi, "%s qid %d\n", __func__, rx_ring->qid); res_budget = budget; xdp.rxq = &rx_ring->xdp_rxq; + xdp.frame_sz = ENA_PAGE_SIZE; do { xdp_verdict = XDP_PASS; diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index 7df67bf09b93..680099afcccf 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -151,8 +151,9 @@ * The buffer size we share with the device is defined to be ENA_PAGE_SIZE */ -#define ENA_XDP_MAX_MTU (ENA_PAGE_SIZE - ETH_HLEN - ETH_FCS_LEN - \ - VLAN_HLEN - XDP_PACKET_HEADROOM) +#define ENA_XDP_MAX_MTU (ENA_PAGE_SIZE - ETH_HLEN - ETH_FCS_LEN - \ + VLAN_HLEN - XDP_PACKET_HEADROOM - \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) #define ENA_IS_XDP_INDEX(adapter, index) (((index) >= (adapter)->xdp_first_ring) && \ ((index) < (adapter)->xdp_first_ring + (adapter)->xdp_num_queues)) |