[bpf-next V1-RFC PATCH 04/14] ixgbe: setup xdp_rxq_info

[Jesper Dangaard Brouer]

Driver hook points for xdp_rxq_info:
 * init+reg: ixgbe_setup_rx_resources()
 * unreg   : ixgbe_free_rx_resources()

Cc: intel-wired-...@lists.osuosl.org
Cc: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
Cc: Alexander Duyck <alexander.du...@gmail.com>
Signed-off-by: Jesper Dangaard Brouer <bro...@redhat.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe.h      |    2 ++
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |   11 ++++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h 
b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 468c3555a629..8611763d6129 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -53,6 +53,7 @@
 #include <linux/dca.h>
 #endif
 
+#include <net/xdp.h>
 #include <net/busy_poll.h>
 
 /* common prefix used by pr_<> macros */
@@ -371,6 +372,7 @@ struct ixgbe_ring {
                struct ixgbe_tx_queue_stats tx_stats;
                struct ixgbe_rx_queue_stats rx_stats;
        };
+       struct xdp_rxq_info xdp_rxq;
 } ____cacheline_internodealigned_in_smp;
 
 enum ixgbe_ring_f_enum {
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c 
b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 7737a05c717c..2a8196427776 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -2318,12 +2318,14 @@ static int ixgbe_clean_rx_irq(struct ixgbe_q_vector 
*q_vector,
 #endif /* IXGBE_FCOE */
        u16 cleaned_count = ixgbe_desc_unused(rx_ring);
        bool xdp_xmit = false;
+       struct xdp_buff xdp;
+
+       xdp.rxq = &rx_ring->xdp_rxq;
 
        while (likely(total_rx_packets < budget)) {
                union ixgbe_adv_rx_desc *rx_desc;
                struct ixgbe_rx_buffer *rx_buffer;
                struct sk_buff *skb;
-               struct xdp_buff xdp;
                unsigned int size;
 
                /* return some buffers to hardware, one at a time is too slow */
@@ -6444,6 +6446,12 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter 
*adapter,
        rx_ring->next_to_clean = 0;
        rx_ring->next_to_use = 0;
 
+       /* XDP RX-queue info */
+       xdp_rxq_info_init(&rx_ring->xdp_rxq);
+       rx_ring->xdp_rxq.dev         = adapter->netdev;
+       rx_ring->xdp_rxq.queue_index = rx_ring->queue_index;
+       xdp_rxq_info_reg(&rx_ring->xdp_rxq);
+
        rx_ring->xdp_prog = adapter->xdp_prog;
 
        return 0;
@@ -6541,6 +6549,7 @@ void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring)
        ixgbe_clean_rx_ring(rx_ring);
 
        rx_ring->xdp_prog = NULL;
+       xdp_rxq_info_unreg(&rx_ring->xdp_rxq);
        vfree(rx_ring->rx_buffer_info);
        rx_ring->rx_buffer_info = NULL;