diff options
Diffstat (limited to 'drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c index 5fbbd479cfb0..3055124b4dd7 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c @@ -1,5 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ +#include <linux/bpf.h> + #include "lan966x_main.h" static int lan966x_fdma_channel_active(struct lan966x *lan966x) @@ -16,7 +18,7 @@ static struct page *lan966x_fdma_rx_alloc_page(struct lan966x_rx *rx, if (unlikely(!page)) return NULL; - db->dataptr = page_pool_get_dma_addr(page); + db->dataptr = page_pool_get_dma_addr(page) + XDP_PACKET_HEADROOM; return page; } @@ -72,7 +74,7 @@ static int lan966x_fdma_rx_alloc_page_pool(struct lan966x_rx *rx) .nid = NUMA_NO_NODE, .dev = lan966x->dev, .dma_dir = DMA_FROM_DEVICE, - .offset = 0, + .offset = XDP_PACKET_HEADROOM, .max_len = rx->max_mtu - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)), }; @@ -432,11 +434,13 @@ static int lan966x_fdma_rx_check_frame(struct lan966x_rx *rx, u64 *src_port) if (unlikely(!page)) return FDMA_ERROR; - dma_sync_single_for_cpu(lan966x->dev, (dma_addr_t)db->dataptr, + dma_sync_single_for_cpu(lan966x->dev, + (dma_addr_t)db->dataptr + XDP_PACKET_HEADROOM, FDMA_DCB_STATUS_BLOCKL(db->status), DMA_FROM_DEVICE); - lan966x_ifh_get_src_port(page_address(page), src_port); + lan966x_ifh_get_src_port(page_address(page) + XDP_PACKET_HEADROOM, + src_port); if (WARN_ON(*src_port >= lan966x->num_phys_ports)) return FDMA_ERROR; @@ -466,6 +470,7 @@ static struct sk_buff *lan966x_fdma_rx_get_frame(struct lan966x_rx *rx, skb_mark_for_recycle(skb); + skb_reserve(skb, XDP_PACKET_HEADROOM); skb_put(skb, FDMA_DCB_STATUS_BLOCKL(db->status)); lan966x_ifh_get_timestamp(skb->data, ×tamp); @@ -786,7 +791,8 @@ static int lan966x_fdma_get_max_frame(struct lan966x *lan966x) return lan966x_fdma_get_max_mtu(lan966x) + IFH_LEN_BYTES + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + - VLAN_HLEN * 2; + VLAN_HLEN * 2 + + XDP_PACKET_HEADROOM; } int lan966x_fdma_change_mtu(struct lan966x *lan966x) |