target/linux/layerscape/patches-5.4/701-net-0088-sdk_dpaa-remove-FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE.patch

   1 From 357ab2939dbddfb6849c55be9de577db078d9037 Mon Sep 17 00:00:00 2001
   2 From: Madalin Bucur <madalin.bucur@nxp.com>
   3 Date: Fri, 12 Oct 2018 16:56:57 +0300
   4 Subject: [PATCH] sdk_dpaa: remove FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
   5
   6 Remove FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE and record the
   7 receive CPU in skb queue mapping to maintain the same CPU
   8 for tx in forwarding scenarios.
   9
  10 Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
  11 ---
  12  drivers/net/ethernet/freescale/sdk_dpaa/Kconfig           | 13 +------------
  13  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c        |  2 +-
  14  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h        | 12 ++----------
  15  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c |  3 +--
  16  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.h |  2 +-
  17  drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c     |  2 ++
  18  6 files changed, 8 insertions(+), 26 deletions(-)
  19
  20 --- a/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig
  21 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig
  22 @@ -96,17 +96,6 @@ config FSL_DPAA_1588
  23          help
  24           Enable IEEE1588 support code.
  25
  26 -config FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
  27 -       bool "Use driver's Tx queue selection mechanism"
  28 -       default y
  29 -       depends on FSL_SDK_DPAA_ETH
  30 -       help
  31 -         The DPAA-Ethernet driver defines a ndo_select_queue() callback for optimal selection
  32 -         of the egress FQ. That will override the XPS support for this netdevice.
  33 -         If for whatever reason you want to be in control of the egress FQ-to-CPU selection and mapping,
  34 -         or simply don't want to use the driver's ndo_select_queue() callback, then unselect this
  35 -         and use the standard XPS support instead.
  36 -
  37  config FSL_DPAA_ETH_MAX_BUF_COUNT
  38         int "Maximum nuber of buffers in private bpool"
  39         depends on FSL_SDK_DPAA_ETH
  40 @@ -178,7 +167,7 @@ config FSL_DPAA_ETH_DEBUG
  41
  42  config FSL_DPAA_DBG_LOOP
  43         bool "DPAA Ethernet Debug loopback"
  44 -       depends on FSL_DPAA_ETH_DEBUGFS && FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
  45 +       depends on FSL_DPAA_ETH_DEBUGFS
  46         default n
  47         help
  48           This option allows to divert all received traffic on a certain interface A towards a
  49 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
  50 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.c
  51 @@ -678,7 +678,7 @@ static const struct net_device_ops dpa_p
  52         .ndo_get_stats64 = dpa_get_stats64,
  53         .ndo_set_mac_address = dpa_set_mac_address,
  54         .ndo_validate_addr = eth_validate_addr,
  55 -#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
  56 +#ifdef CONFIG_FMAN_PFC
  57         .ndo_select_queue = dpa_select_queue,
  58  #endif
  59         .ndo_set_rx_mode = dpa_set_rx_mode,
  60 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
  61 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
  62 @@ -635,23 +635,15 @@ static inline void _dpa_assign_wq(struct
  63         }
  64  }
  65
  66 -#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
  67 -/* Use in lieu of skb_get_queue_mapping() */
  68  #ifdef CONFIG_FMAN_PFC
  69 +/* Use in lieu of skb_get_queue_mapping() */
  70  #define dpa_get_queue_mapping(skb) \
  71         (((skb)->priority < CONFIG_FMAN_PFC_COS_COUNT) ? \
  72                 ((skb)->priority * dpa_num_cpus + smp_processor_id()) : \
  73                 ((CONFIG_FMAN_PFC_COS_COUNT - 1) * \
  74                         dpa_num_cpus + smp_processor_id()));
  75 -
  76  #else
  77 -#define dpa_get_queue_mapping(skb) \
  78 -       raw_smp_processor_id()
  79 -#endif
  80 -#else
  81 -/* Use the queue selected by XPS */
  82 -#define dpa_get_queue_mapping(skb) \
  83 -       skb_get_queue_mapping(skb)
  84 +#define dpa_get_queue_mapping(skb) skb_get_queue_mapping(skb)
  85  #endif
  86
  87  #ifdef CONFIG_PTP_1588_CLOCK_DPAA
  88 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c
  89 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.c
  90 @@ -841,14 +841,13 @@ bool dpa_bpid2pool_use(int bpid)
  91         return false;
  92  }
  93
  94 -#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
  95 +#ifdef CONFIG_FMAN_PFC
  96  u16 dpa_select_queue(struct net_device *net_dev, struct sk_buff *skb,
  97                      struct net_device *sb_dev,
  98                      select_queue_fallback_t fallback)
  99  {
 100         return dpa_get_queue_mapping(skb);
 101  }
 102 -EXPORT_SYMBOL(dpa_select_queue);
 103  #endif
 104
 105  struct dpa_fq *dpa_fq_alloc(struct device *dev,
 106 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.h
 107 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_common.h
 108 @@ -172,7 +172,7 @@ struct dpa_bp *dpa_bpid2pool(int bpid);
 109  void dpa_bpid2pool_map(int bpid, struct dpa_bp *dpa_bp);
 110  bool dpa_bpid2pool_use(int bpid);
 111  void dpa_bp_drain(struct dpa_bp *bp);
 112 -#ifdef CONFIG_FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE
 113 +#ifdef CONFIG_FMAN_PFC
 114  u16 dpa_select_queue(struct net_device *net_dev, struct sk_buff *skb,
 115                      struct net_device *sb_dev,
 116                      select_queue_fallback_t fallback);
 117 --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
 118 +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
 119 @@ -648,6 +648,8 @@ void __hot _dpa_rx(struct net_device *ne
 120         }
 121  #endif
 122
 123 +       skb_record_rx_queue(skb, raw_smp_processor_id());
 124 +
 125         if (use_gro) {
 126                 gro_result_t gro_result;
 127                 const struct qman_portal_config *pc =