struct bpf_prog *prog,
struct sw_rx_data *bd,
struct eth_fast_path_rx_reg_cqe *cqe,
- u16 data_offset)
+ u16 *data_offset, u16 *len)
{
- u16 len = le16_to_cpu(cqe->len_on_first_bd);
struct xdp_buff xdp;
enum xdp_action act;
- xdp.data = page_address(bd->data) + data_offset;
- xdp.data_end = xdp.data + len;
+ xdp.data_hard_start = page_address(bd->data);
+ xdp.data = xdp.data_hard_start + *data_offset;
+ xdp.data_end = xdp.data + *len;
/* Queues always have a full reset currently, so for the time
* being until there's atomic program replace just mark read
act = bpf_prog_run_xdp(prog, &xdp);
rcu_read_unlock();
+ /* Recalculate, as XDP might have changed the headers */
+ *data_offset = xdp.data - xdp.data_hard_start;
+ *len = xdp.data_end - xdp.data;
+
if (act == XDP_PASS)
return true;
/* Now if there's a transmission problem, we'd still have to
* throw current buffer, as replacement was already allocated.
*/
- if (qede_xdp_xmit(edev, fp, bd, data_offset, len)) {
+ if (qede_xdp_xmit(edev, fp, bd, *data_offset, *len)) {
dma_unmap_page(rxq->dev, bd->mapping,
PAGE_SIZE, DMA_BIDIRECTIONAL);
__free_page(bd->data);
/* Run eBPF program if one is attached */
if (xdp_prog)
- if (!qede_rx_xdp(edev, fp, rxq, xdp_prog, bd, fp_cqe, pad))
+ if (!qede_rx_xdp(edev, fp, rxq, xdp_prog, bd, fp_cqe,
+ &pad, &len))
return 0;
/* If this is an error packet then drop it */