releases/5.0.14/net-hns-use-napi_poll_weight-for-hns-driver.patch

   1 From ecc38cf4248965b95d40a4b1db2e84bf5347054e Mon Sep 17 00:00:00 2001
   2 From: Yonglong Liu <liuyonglong@huawei.com>
   3 Date: Thu, 4 Apr 2019 16:46:43 +0800
   4 Subject: net: hns: Use NAPI_POLL_WEIGHT for hns driver
   5
   6 [ Upstream commit acb1ce15a61154aa501891d67ebf79bc9ea26818 ]
   7
   8 When the HNS driver loaded, always have an error print:
   9 "netif_napi_add() called with weight 256"
  10
  11 This is because the kernel checks the NAPI polling weights
  12 requested by drivers and it prints an error message if a driver
  13 requests a weight bigger than 64.
  14
  15 So use NAPI_POLL_WEIGHT to fix it.
  16
  17 Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
  18 Signed-off-by: Peng Li <lipeng321@huawei.com>
  19 Signed-off-by: David S. Miller <davem@davemloft.net>
  20 Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
  21 ---
  22  drivers/net/ethernet/hisilicon/hns/hns_enet.c | 7 ++-----
  23  1 file changed, 2 insertions(+), 5 deletions(-)
  24
  25 diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
  26 index e5a7c0761dbd..4cd86ba1f050 100644
  27 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
  28 +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
  29 @@ -29,9 +29,6 @@
  30
  31  #define SERVICE_TIMER_HZ (1 * HZ)
  32
  33 -#define NIC_TX_CLEAN_MAX_NUM 256
  34 -#define NIC_RX_CLEAN_MAX_NUM 64
  35 -
  36  #define RCB_IRQ_NOT_INITED 0
  37  #define RCB_IRQ_INITED 1
  38  #define HNS_BUFFER_SIZE_2048 2048
  39 @@ -2153,7 +2150,7 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
  40                         hns_nic_tx_fini_pro_v2;
  41
  42                 netif_napi_add(priv->netdev, &rd->napi,
  43 -                              hns_nic_common_poll, NIC_TX_CLEAN_MAX_NUM);
  44 +                              hns_nic_common_poll, NAPI_POLL_WEIGHT);
  45                 rd->ring->irq_init_flag = RCB_IRQ_NOT_INITED;
  46         }
  47         for (i = h->q_num; i < h->q_num * 2; i++) {
  48 @@ -2166,7 +2163,7 @@ static int hns_nic_init_ring_data(struct hns_nic_priv *priv)
  49                         hns_nic_rx_fini_pro_v2;
  50
  51                 netif_napi_add(priv->netdev, &rd->napi,
  52 -                              hns_nic_common_poll, NIC_RX_CLEAN_MAX_NUM);
  53 +                              hns_nic_common_poll, NAPI_POLL_WEIGHT);
  54                 rd->ring->irq_init_flag = RCB_IRQ_NOT_INITED;
  55         }
  56
  57 --
  58 2.20.1
  59