Commit 471ef777 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Jakub Kicinski
Browse files

net: broadcom: bcm4908_enet: report queued and transmitted bytes 



This allows BQL to operate avoiding buffer bloat and reducing latency.

Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20221031104856.32388-1-zajec5@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 2cee6401

drivers/net/ethernet/broadcom/bcm4908_enet.c

+4 −0
Original line number Diff line number Diff line
@@ -505,6 +505,7 @@ static int bcm4908_enet_stop(struct net_device *netdev) 
	netif_carrier_off(netdev);

	napi_disable(&rx_ring->napi);

	napi_disable(&tx_ring->napi);

	netdev_reset_queue(netdev);



	bcm4908_enet_dma_rx_ring_disable(enet, &enet->rx_ring);

	bcm4908_enet_dma_tx_ring_disable(enet, &enet->tx_ring);
@@ -564,6 +565,8 @@ static netdev_tx_t bcm4908_enet_start_xmit(struct sk_buff *skb, struct net_devic 
	if (ring->write_idx + 1 == ring->length - 1)

		tmp |= DMA_CTL_STATUS_WRAP;



	netdev_sent_queue(enet->netdev, skb->len);



	buf_desc->addr = cpu_to_le32((uint32_t)slot->dma_addr);

	buf_desc->ctl = cpu_to_le32(tmp);
@@ -671,6 +674,7 @@ static int bcm4908_enet_poll_tx(struct napi_struct *napi, int weight) 
			tx_ring->read_idx = 0;

	}



	netdev_completed_queue(enet->netdev, handled, bytes);

	enet->netdev->stats.tx_packets += handled;

	enet->netdev->stats.tx_bytes += bytes;