Commit 5a842c28 authored by Dragos Tatulea's avatar Dragos Tatulea Committed by Jakub Kicinski
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net/mlx5e: Add TX support for netmems 



Declare netmem TX support in netdev.

As required, use the netmem aware dma unmapping APIs
for unmapping netmems in tx completion path.

Signed-off-by: default avatarDragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: default avatarTariq Toukan <tariqt@nvidia.com>
Reviewed-by: default avatarMina Almasry <almasrymina@google.com>
Signed-off-by: default avatarMark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250616141441.1243044-13-mbloch@nvidia.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 46bcce5d

drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h

+2 −1
Original line number Diff line number Diff line
@@ -362,7 +362,8 @@ mlx5e_tx_dma_unmap(struct device *pdev, struct mlx5e_sq_dma *dma) 
		dma_unmap_single(pdev, dma->addr, dma->size, DMA_TO_DEVICE);

		break;

	case MLX5E_DMA_MAP_PAGE:

		dma_unmap_page(pdev, dma->addr, dma->size, DMA_TO_DEVICE);

		netmem_dma_unmap_page_attrs(pdev, dma->addr, dma->size,

					    DMA_TO_DEVICE, 0);

		break;

	default:

		WARN_ONCE(true, "mlx5e_tx_dma_unmap unknown DMA type!\n");

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

+2 −0
Original line number Diff line number Diff line
@@ -5741,6 +5741,8 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev) 


	netdev->priv_flags       |= IFF_UNICAST_FLT;



	netdev->netmem_tx = true;



	netif_set_tso_max_size(netdev, GSO_MAX_SIZE);

	mlx5e_set_xdp_feature(netdev);

	mlx5e_set_netdev_dev_addr(netdev);