[net-next V9 PATCH 03/16] ixgbe: use xdp_return_frame API

[Jesper Dangaard Brouer]

Extend struct ixgbe_tx_buffer to store the xdp_mem_info.

Notice that this could be optimized further by putting this into
a union in the struct ixgbe_tx_buffer, but this patchset
works towards removing this again.  Thus, this is not done.

Signed-off-by: Jesper Dangaard Brouer <bro...@redhat.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe.h      |    1 +
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |    6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h 
b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 4f08c712e58e..abb5248e917e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -250,6 +250,7 @@ struct ixgbe_tx_buffer {
        DEFINE_DMA_UNMAP_ADDR(dma);
        DEFINE_DMA_UNMAP_LEN(len);
        u32 tx_flags;
+       struct xdp_mem_info xdp_mem;
 };
 
 struct ixgbe_rx_buffer {
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c 
b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index afadba99f7b8..0bfe6cf2bf8b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1216,7 +1216,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector 
*q_vector,
 
                /* free the skb */
                if (ring_is_xdp(tx_ring))
-                       page_frag_free(tx_buffer->data);
+                       xdp_return_frame(tx_buffer->data, &tx_buffer->xdp_mem);
                else
                        napi_consume_skb(tx_buffer->skb, napi_budget);
 
@@ -5797,7 +5797,7 @@ static void ixgbe_clean_tx_ring(struct ixgbe_ring 
*tx_ring)
 
                /* Free all the Tx ring sk_buffs */
                if (ring_is_xdp(tx_ring))
-                       page_frag_free(tx_buffer->data);
+                       xdp_return_frame(tx_buffer->data, &tx_buffer->xdp_mem);
                else
                        dev_kfree_skb_any(tx_buffer->skb);
 
@@ -8366,6 +8366,8 @@ static int ixgbe_xmit_xdp_ring(struct ixgbe_adapter 
*adapter,
        dma_unmap_len_set(tx_buffer, len, len);
        dma_unmap_addr_set(tx_buffer, dma, dma);
        tx_buffer->data = xdp->data;
+       tx_buffer->xdp_mem = xdp->rxq->mem;
+
        tx_desc->read.buffer_addr = cpu_to_le64(dma);
 
        /* put descriptor type bits */