summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/amazon
diff options
context:
space:
mode:
authorJesper Dangaard Brouer <brouer@redhat.com>2020-05-14 13:50:13 +0300
committerAlexei Starovoitov <ast@kernel.org>2020-05-15 07:21:55 +0300
commit08fc1cfd2d250be853d33d6505ae11ff52b83b74 (patch)
tree1016ab5fd555dac5c05409deb5e786e9a92eab28 /drivers/net/ethernet/amazon
parentc88c35181d6ab83e439855681032653ef8728045 (diff)
downloadlinux-08fc1cfd2d250be853d33d6505ae11ff52b83b74.tar.xz
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/net/ethernet/amazon')
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_netdev.c1
-rw-r--r--drivers/net/ethernet/amazon/ena/ena_netdev.h5
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))