Re: [PATCH net-next v3 1/8] net: convert netmem_tx flag to enum

[sashiko-bot@kernel.org]

> From: Bobby Eshleman <bobbyeshleman@meta.com>
> 
> Devices that support netmem TX previously set dev->netmem_tx = true.
> This was checked in validate_xmit_unreadable_skb() to drop unreadable
> skbs (skbs with dmabuf-backed frags) before they reach drivers that
> would mishandle them or devices that would not have the iommu mappings
> for them.
> 
> A subsequent patch will introduce a third state for virtual devices
> that forward unreadable skbs without ever performing DMA on them. To
> prepare for that, convert the boolean dev->netmem_tx into an enum:
> 
> NETMEM_TX_NONE   - no netmem TX support (drop unreadable skbs)
> NETMEM_TX_DMA    - full support, device does DMA
> 
> Update the existing NIC drivers (bnxt, gve, mlx5, fbnic) and the
> validators in net/core to use the new enum. No functional change.
> 
> Acked-by: Harshitha Ramamurthy <hramamurthy@google.com>
> Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>

Sashiko has reviewed this patch and found no issues.

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