netdev - Re: [net-next PATCH v1 5/9] netdev-genl: Add netlink framework functions for napi

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Message-ID: <20230731123732.5e112027@kernel.org>
Date: Mon, 31 Jul 2023 12:37:32 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Amritha Nambiar <amritha.nambiar@...el.com>
Cc: netdev@...r.kernel.org, davem@...emloft.net, sridhar.samudrala@...el.com
Subject: Re: [net-next PATCH v1 5/9] netdev-genl: Add netlink framework
 functions for napi

On Fri, 28 Jul 2023 17:47:17 -0700 Amritha Nambiar wrote:
>  int netdev_nl_napi_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
>  {
> -	return -EOPNOTSUPP;
> +	struct netdev_nl_dump_ctx *ctx = netdev_dump_ctx(cb);
> +	struct net *net = sock_net(skb->sk);
> +	struct net_device *netdev;
> +	int idx = 0, s_idx, n_idx;
> +	int h, s_h;
> +	int err;
> +
> +	s_h = ctx->dev_entry_hash;
> +	s_idx = ctx->dev_entry_idx;
> +	n_idx = ctx->napi_idx;
> +
> +	rtnl_lock();
> +
> +	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
> +		struct hlist_head *head;
> +
> +		idx = 0;
> +		head = &net->dev_index_head[h];
> +		hlist_for_each_entry(netdev, head, index_hlist) {

Please rebased on latest net-next you can ditch all this iteration
stuff and use the new xarray.
-- 
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