target/linux/bcm4908/patches-5.10/079-v6.2-0002-net-broadcom-bcm4908_enet-report-queued-and-transmit.patch

   1 From 471ef777ec79baadc5cd9773d08f95f49cf5e2b1 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   3 Date: Mon, 31 Oct 2022 11:48:56 +0100
   4 Subject: [PATCH] net: broadcom: bcm4908_enet: report queued and transmitted
   5  bytes
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
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   9
  10 This allows BQL to operate avoiding buffer bloat and reducing latency.
  11
  12 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  13 Link: https://lore.kernel.org/r/20221031104856.32388-1-zajec5@gmail.com
  14 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  15 ---
  16  drivers/net/ethernet/broadcom/bcm4908_enet.c | 4 ++++
  17  1 file changed, 4 insertions(+)
  18
  19 --- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
  20 +++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
  21 @@ -504,6 +504,7 @@ static int bcm4908_enet_stop(struct net_
  22         netif_carrier_off(netdev);
  23         napi_disable(&rx_ring->napi);
  24         napi_disable(&tx_ring->napi);
  25 +       netdev_reset_queue(netdev);
  26
  27         bcm4908_enet_dma_rx_ring_disable(enet, &enet->rx_ring);
  28         bcm4908_enet_dma_tx_ring_disable(enet, &enet->tx_ring);
  29 @@ -563,6 +564,8 @@ static int bcm4908_enet_start_xmit(struc
  30         if (ring->write_idx + 1 == ring->length - 1)
  31                 tmp |= DMA_CTL_STATUS_WRAP;
  32
  33 +       netdev_sent_queue(enet->netdev, skb->len);
  34 +
  35         buf_desc->addr = cpu_to_le32((uint32_t)slot->dma_addr);
  36         buf_desc->ctl = cpu_to_le32(tmp);
  37
  38 @@ -670,6 +673,7 @@ static int bcm4908_enet_poll_tx(struct n
  39                         tx_ring->read_idx = 0;
  40         }
  41
  42 +       netdev_completed_queue(enet->netdev, handled, bytes);
  43         enet->netdev->stats.tx_packets += handled;
  44         enet->netdev->stats.tx_bytes += bytes;
  45