target/linux/layerscape/patches-5.4/701-net-0097-sdk_dpaa-set-the-skb-queue-mapping-when-looping.patch

   1 From ae59df58bacb7d3daf2cf736f286a368ee703778 Mon Sep 17 00:00:00 2001
   2 From: Camelia Groza <camelia.groza@nxp.com>
   3 Date: Tue, 30 Oct 2018 18:18:57 +0200
   4 Subject: [PATCH] sdk_dpaa: set the skb queue mapping when looping
   5
   6 Save the current CPU ID on ingress, when FSL_DPAA_DBG_LOOP is set.
   7 Use the skb_set_queue_mapping() call instead of skb_record_rx_queue()
   8 because the stack isn't involved and won't compensate for the additional
   9 offset.
  10
  11 Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
  12 ---
  13  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 2 ++
  14  1 file changed, 2 insertions(+)
  15
  16 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
  17 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
  18 @@ -575,6 +575,8 @@ static inline int dpa_skb_loop(const str
  19                 return 0; /* loop disabled by default */
  20
  21         skb_push(skb, ETH_HLEN); /* compensate for eth_type_trans */
  22 +       /* Save the current CPU ID in order to maintain core affinity */
  23 +       skb_set_queue_mapping(skb, raw_smp_processor_id());
  24         dpa_tx(skb, dpa_loop_netdevs[priv->loop_to]);
  25
  26         return 1; /* Frame Tx on the selected interface */