[PATCH net-next v4 02/33] bnxt: add XDP frame size to driver

[Jesper Dangaard Brouer]

This driver uses full PAGE_SIZE pages when XDP is enabled.

In case of XDP uses driver uses __bnxt_alloc_rx_page which does full
page DMA-map. Thus, xdp_adjust_tail grow is DMA compliant for XDP_TX
action that does DMA-sync.

Cc: Michael Chan <michael.c...@broadcom.com>
Cc: Andy Gospodarek <andrew.gospoda...@broadcom.com>
Signed-off-by: Jesper Dangaard Brouer <bro...@redhat.com>
Reviewed-by: Andy Gospodarek <go...@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c 
b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index c6f6f2033880..5e3b4a3b69ea 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -138,6 +138,7 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info 
*rxr, u16 cons,
        xdp_set_data_meta_invalid(&xdp);
        xdp.data_end = *data_ptr + *len;
        xdp.rxq = &rxr->xdp_rxq;
+       xdp.frame_sz = PAGE_SIZE; /* BNXT_RX_PAGE_MODE(bp) when XDP enabled */
        orig_data = xdp.data;
 
        rcu_read_lock();