Sun, Jul 28, 2019 at 08:52:47AM CEST, we...@ucloud.cn wrote:
>From: wenxu <we...@ucloud.cn>
>
>move tc indirect block to flow_offload and rename
>it to flow indirect block.The nf_tables can use the
>indr block architecture.
>
>Signed-off-by: wenxu <we...@ucloud.cn>
>---
>v3: subsys_initcall for init_flow_indr_rhashtable
>v4: no change
>
[...]
>diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
>index 00b9aab..66f89bc 100644
>--- a/include/net/flow_offload.h
>+++ b/include/net/flow_offload.h
>@@ -4,6 +4,7 @@
> #include <linux/kernel.h>
> #include <linux/list.h>
> #include <net/flow_dissector.h>
>+#include <linux/rhashtable.h>
>
> struct flow_match {
> struct flow_dissector *dissector;
>@@ -366,4 +367,42 @@ static inline void flow_block_init(struct flow_block
>*flow_block)
> INIT_LIST_HEAD(&flow_block->cb_list);
> }
>
>+typedef int flow_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv,
>+ enum tc_setup_type type, void *type_data);
>+
>+struct flow_indr_block_cb {
>+ struct list_head list;
>+ void *cb_priv;
>+ flow_indr_block_bind_cb_t *cb;
>+ void *cb_ident;
>+};
I don't understand why are you pushing this struct out of the c file to
the header. Please don't.
>+
>+typedef void flow_indr_block_ing_cmd_t(struct net_device *dev,
>+ struct flow_block *flow_block,
>+ struct flow_indr_block_cb *indr_block_cb,
>+ enum flow_block_command command);
>+
>+struct flow_indr_block_dev {
>+ struct rhash_head ht_node;
>+ struct net_device *dev;
>+ unsigned int refcnt;
>+ struct list_head cb_list;
>+ flow_indr_block_ing_cmd_t *ing_cmd_cb;
>+ struct flow_block *flow_block;
I don't understand why are you pushing this struct out of the c file to
the header. Please don't.
>+};
>+
>+struct flow_indr_block_dev *flow_indr_block_dev_lookup(struct net_device
>*dev);
>+
>+int __flow_indr_block_cb_register(struct net_device *dev, void *cb_priv,
>+ flow_indr_block_bind_cb_t *cb, void
>*cb_ident);
>+
>+void __flow_indr_block_cb_unregister(struct net_device *dev,
>+ flow_indr_block_bind_cb_t *cb, void
>*cb_ident);
>+
>+int flow_indr_block_cb_register(struct net_device *dev, void *cb_priv,
>+ flow_indr_block_bind_cb_t *cb, void *cb_ident);
>+
>+void flow_indr_block_cb_unregister(struct net_device *dev,
>+ flow_indr_block_bind_cb_t *cb, void
>*cb_ident);
>+
[...]
>+
>+int __flow_indr_block_cb_register(struct net_device *dev, void *cb_priv,
>+ flow_indr_block_bind_cb_t *cb,
>+ void *cb_ident)
>+{
>+ struct flow_indr_block_cb *indr_block_cb;
>+ struct flow_indr_block_dev *indr_dev;
>+ int err;
>+
>+ indr_dev = flow_indr_block_dev_get(dev);
>+ if (!indr_dev)
>+ return -ENOMEM;
>+
>+ indr_block_cb = flow_indr_block_cb_add(indr_dev, cb_priv, cb, cb_ident);
>+ err = PTR_ERR_OR_ZERO(indr_block_cb);
>+ if (err)
>+ goto err_dev_put;
>+
>+ if (indr_dev->ing_cmd_cb)
>+ indr_dev->ing_cmd_cb(indr_dev->dev, indr_dev->flow_block,
>indr_block_cb,
This line is over 80cols. Please run checkpatch script for your patch
and obey the warnings.
>+ FLOW_BLOCK_BIND);
>+
>+ return 0;
>+
>+err_dev_put:
>+ flow_indr_block_dev_put(indr_dev);
>+ return err;
>+}
>+EXPORT_SYMBOL_GPL(__flow_indr_block_cb_register);
[...]
>
>-static void tc_indr_block_ing_cmd(struct tc_indr_block_dev *indr_dev,
>- struct tc_indr_block_cb *indr_block_cb,
>+static void tc_indr_block_ing_cmd(struct net_device *dev,
I don't understand why you change struct tc_indr_block_dev * to
struct net_device * here. If you want to do that, please do that in a
separate patch, not it this one where only "the move" should happen.
>+ struct flow_block *flow_block,
>+ struct flow_indr_block_cb *indr_block_cb,
> enum flow_block_command command)
> {
>+ struct tcf_block *block = flow_block ?
>+ container_of(flow_block,
>+ struct tcf_block,
>+ flow_block) : NULL;
> struct flow_block_offload bo = {
> .command = command,
> .binder_type = FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS,
>- .net = dev_net(indr_dev->dev),
>- .block_shared = tcf_block_non_null_shared(indr_dev->block),
>+ .net = dev_net(dev),
>+ .block_shared = tcf_block_non_null_shared(block),
> };
> INIT_LIST_HEAD(&bo.cb_list);
>
[...]
