Re: [RFC PATCH net-next v6 01/15] queue_api: define queue api

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On Mon,  4 Mar 2024 18:01:36 -0800 Mina Almasry wrote:
> + * void *(*ndo_queue_mem_alloc)(struct net_device *dev, int idx);
> + *	Allocate memory for an RX queue. The memory returned in the form of
> + *	a void * can be passed to ndo_queue_mem_free() for freeing or to
> + *	ndo_queue_start to create an RX queue with this memory.
> + *
> + * void	(*ndo_queue_mem_free)(struct net_device *dev, void *);
> + *	Free memory from an RX queue.
> + *
> + * int (*ndo_queue_start)(struct net_device *dev, int idx, void *);
> + *	Start an RX queue at the specified index.
> + *
> + * int (*ndo_queue_stop)(struct net_device *dev, int idx, void **);
> + *	Stop the RX queue at the specified index.
>   */
>  struct net_device_ops {
>  	int			(*ndo_init)(struct net_device *dev);
> @@ -1679,6 +1693,16 @@ struct net_device_ops {
>  	int			(*ndo_hwtstamp_set)(struct net_device *dev,
>  						    struct kernel_hwtstamp_config *kernel_config,
>  						    struct netlink_ext_ack *extack);
> +	void *			(*ndo_queue_mem_alloc)(struct net_device *dev,
> +						       int idx);
> +	void			(*ndo_queue_mem_free)(struct net_device *dev,
> +						      void *queue_mem);
> +	int			(*ndo_queue_start)(struct net_device *dev,
> +						   int idx,
> +						   void *queue_mem);
> +	int			(*ndo_queue_stop)(struct net_device *dev,
> +						  int idx,
> +						  void **out_queue_mem);

The queue configuration object was quite an integral part of the design,
I'm slightly worried that it's not here :) Also we may want to rename
the about-to-be-merged ops from netdev_stat_ops and netdev_queue_ops,
and add these there?

https://lore.kernel.org/all/20240306195509.1502746-2-kuba@xxxxxxxxxx/

Very excited to hear that you made progress on this and ported GVE over!



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