On 10/28/19 7:56 AM, Charles McLachlan wrote:

Supply the XDP callbacks in netdevice ops that enable lower level processing
of XDP frames.

Changes since last submission:
- Use of xdp_return_frame_rx_napi() in tx.c
- Addition of xdp_rxq_info_valid and xdp_rxq_info_failed to track when
  xdp_rxq_info failures occur.
- Renaming of rc to err and more use of unlikely().
- Cut some duplicated code and fix an array overrun.
- Actually increment n_rx_xdp_tx when packets are transmitted.

Hi:

I was hoping to try out this patch set, but when I rebooted the server
with these applied I hit the BUG_ON in efx_ef10_link_piobufs:

	if (tx_queue->queue == nic_data->pio_write_vi_base) {
		BUG_ON(index != 0);
		...