netdev - Re: [PATCH net-next,v2 3/3] net: flow_offload: add flow

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Date:   Thu, 11 Jul 2019 15:23:34 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Pablo Neira Ayuso <pablo@...filter.org>
Cc:     netfilter-devel@...r.kernel.org, davem@...emloft.net,
        netdev@...r.kernel.org, jakub.kicinski@...ronome.com
Subject: Re: [PATCH net-next,v2 3/3] net: flow_offload: add flow_block
 structure and use it

Thu, Jul 11, 2019 at 03:09:23PM CEST, pablo@...filter.org wrote:
>This object stores the flow block callbacks that are attached to this
>block. This patch restores block sharing.
>
>Fixes: da3eeb904ff4 ("net: flow_offload: add list handling functions")
>Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
>---
>v3: add flow_block_init() - Jiri Pirko.

and rename flow/flow_block/

[...]


>@@ -951,7 +952,7 @@ struct nft_stats {
>  *	@stats: per-cpu chain stats
>  *	@chain: the chain
>  *	@dev_name: device name that this base chain is attached to (if any)
>- *	@cb_list: list of flow block callbacks (for hardware offload)
>+ *	@flow: flow block (for hardware offload)

You missed rename here: s/flow:/flow_block:/


>  */
> struct nft_base_chain {
> 	struct nf_hook_ops		ops;
>@@ -961,7 +962,7 @@ struct nft_base_chain {
> 	struct nft_stats __percpu	*stats;
> 	struct nft_chain		chain;
> 	char 				dev_name[IFNAMSIZ];
>-	struct list_head		cb_list;
>+	struct flow_block		flow_block;
> };
> 
> static inline struct nft_base_chain *nft_base_chain(const struct nft_chain *chain)
>diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
>index 9482e060483b..6b6b01234dd9 100644
>--- a/include/net/sch_generic.h
>+++ b/include/net/sch_generic.h
>@@ -399,7 +399,7 @@ struct tcf_block {
> 	refcount_t refcnt;
> 	struct net *net;
> 	struct Qdisc *q;
>-	struct list_head cb_list;
>+	struct flow_block flow_block;
> 	struct list_head owner_list;
> 	bool keep_dst;
> 	unsigned int offloadcnt; /* Number of oddloaded filters */
>diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c
>index a800fa78d96c..935c7f81a9ef 100644
>--- a/net/core/flow_offload.c
>+++ b/net/core/flow_offload.c
>@@ -198,7 +198,7 @@ struct flow_block_cb *flow_block_cb_lookup(struct flow_block_offload *f,

Reminding the block arg here.


> {
> 	struct flow_block_cb *block_cb;
> 
>-	list_for_each_entry(block_cb, f->driver_block_list, driver_list) {
>+	list_for_each_entry(block_cb, &f->block->cb_list, list) {
> 		if (block_cb->cb == cb &&
> 		    block_cb->cb_ident == cb_ident)
> 			return block_cb;

[...]