Commit d52238eb authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

mlxsw: spectrum: Push flow_block related functions into a separate file 



The code around flow_block is currently mixed in spectrum_acl.c.
However, as it really does not directly relate to ACL part only,
push the bits into a separate file.

Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3bc3ffb6

drivers/net/ethernet/mellanox/mlxsw/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ mlxsw_spectrum-objs := spectrum.o spectrum_buffers.o \ 
				   spectrum_acl_atcam.o spectrum_acl_erp.o \

				   spectrum1_acl_tcam.o spectrum2_acl_tcam.o \

				   spectrum_acl_bloom_filter.o spectrum_acl.o \

				   spectrum_flow.o \

				   spectrum_flower.o spectrum_cnt.o \

				   spectrum_fid.o spectrum_ipip.o \

				   spectrum_acl_flex_actions.o \

drivers/net/ethernet/mellanox/mlxsw/spectrum.h

+24 −10
Original line number Diff line number Diff line
@@ -654,15 +654,7 @@ struct mlxsw_sp_acl_rule_info { 
	unsigned int counter_index;

};



struct mlxsw_sp_flow_block;

struct mlxsw_sp_acl_ruleset;



/* spectrum_acl.c */

enum mlxsw_sp_acl_profile {

	MLXSW_SP_ACL_PROFILE_FLOWER,

	MLXSW_SP_ACL_PROFILE_MR,

};



/* spectrum_flow.c */

struct mlxsw_sp_flow_block {

	struct list_head binding_list;

	struct mlxsw_sp_acl_ruleset *ruleset_zero;
@@ -676,7 +668,12 @@ struct mlxsw_sp_flow_block { 
	struct net *net;

};



struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl);

struct mlxsw_sp_flow_block_binding {

	struct list_head list;

	struct net_device *dev;

	struct mlxsw_sp_port *mlxsw_sp_port;

	bool ingress;

};



static inline struct mlxsw_sp *

mlxsw_sp_flow_block_mlxsw_sp(struct mlxsw_sp_flow_block *block)
@@ -740,6 +737,23 @@ int mlxsw_sp_flow_block_unbind(struct mlxsw_sp *mlxsw_sp, 
			       struct mlxsw_sp_flow_block *block,

			       struct mlxsw_sp_port *mlxsw_sp_port,

			       bool ingress);



/* spectrum_acl.c */

struct mlxsw_sp_acl_ruleset;



enum mlxsw_sp_acl_profile {

	MLXSW_SP_ACL_PROFILE_FLOWER,

	MLXSW_SP_ACL_PROFILE_MR,

};



struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl);



int mlxsw_sp_acl_ruleset_bind(struct mlxsw_sp *mlxsw_sp,

			      struct mlxsw_sp_flow_block *block,

			      struct mlxsw_sp_flow_block_binding *binding);

void mlxsw_sp_acl_ruleset_unbind(struct mlxsw_sp *mlxsw_sp,

				 struct mlxsw_sp_flow_block *block,

				 struct mlxsw_sp_flow_block_binding *binding);

struct mlxsw_sp_acl_ruleset *

mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp *mlxsw_sp,

			    struct mlxsw_sp_flow_block *block, u32 chain_index,

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c

+6 −125
Original line number Diff line number Diff line
@@ -40,13 +40,6 @@ struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl) 
	return acl->afk;

}



struct mlxsw_sp_flow_block_binding {

	struct list_head list;

	struct net_device *dev;

	struct mlxsw_sp_port *mlxsw_sp_port;

	bool ingress;

};



struct mlxsw_sp_acl_ruleset_ht_key {

	struct mlxsw_sp_flow_block *block;

	u32 chain_index;
@@ -101,8 +94,7 @@ mlxsw_sp_acl_ruleset_is_singular(const struct mlxsw_sp_acl_ruleset *ruleset) 
	return ruleset->ref_count == 2;

}



static int

mlxsw_sp_acl_ruleset_bind(struct mlxsw_sp *mlxsw_sp,

int mlxsw_sp_acl_ruleset_bind(struct mlxsw_sp *mlxsw_sp,

			      struct mlxsw_sp_flow_block *block,

			      struct mlxsw_sp_flow_block_binding *binding)

{
@@ -113,8 +105,7 @@ mlxsw_sp_acl_ruleset_bind(struct mlxsw_sp *mlxsw_sp, 
				 binding->mlxsw_sp_port, binding->ingress);

}



static void

mlxsw_sp_acl_ruleset_unbind(struct mlxsw_sp *mlxsw_sp,

void mlxsw_sp_acl_ruleset_unbind(struct mlxsw_sp *mlxsw_sp,

				 struct mlxsw_sp_flow_block *block,

				 struct mlxsw_sp_flow_block_binding *binding)

{
@@ -125,12 +116,6 @@ mlxsw_sp_acl_ruleset_unbind(struct mlxsw_sp *mlxsw_sp, 
			    binding->mlxsw_sp_port, binding->ingress);

}



static bool

mlxsw_sp_acl_ruleset_block_bound(const struct mlxsw_sp_flow_block *block)

{

	return block->ruleset_zero;

}



static int

mlxsw_sp_acl_ruleset_block_bind(struct mlxsw_sp *mlxsw_sp,

				struct mlxsw_sp_acl_ruleset *ruleset,
@@ -168,110 +153,6 @@ mlxsw_sp_acl_ruleset_block_unbind(struct mlxsw_sp *mlxsw_sp, 
	block->ruleset_zero = NULL;

}



struct mlxsw_sp_flow_block *

mlxsw_sp_flow_block_create(struct mlxsw_sp *mlxsw_sp, struct net *net)

{

	struct mlxsw_sp_flow_block *block;



	block = kzalloc(sizeof(*block), GFP_KERNEL);

	if (!block)

		return NULL;

	INIT_LIST_HEAD(&block->binding_list);

	block->mlxsw_sp = mlxsw_sp;

	block->net = net;

	return block;

}



void mlxsw_sp_flow_block_destroy(struct mlxsw_sp_flow_block *block)

{

	WARN_ON(!list_empty(&block->binding_list));

	kfree(block);

}



static struct mlxsw_sp_flow_block_binding *

mlxsw_sp_flow_block_lookup(struct mlxsw_sp_flow_block *block,

			   struct mlxsw_sp_port *mlxsw_sp_port, bool ingress)

{

	struct mlxsw_sp_flow_block_binding *binding;



	list_for_each_entry(binding, &block->binding_list, list)

		if (binding->mlxsw_sp_port == mlxsw_sp_port &&

		    binding->ingress == ingress)

			return binding;

	return NULL;

}



int mlxsw_sp_flow_block_bind(struct mlxsw_sp *mlxsw_sp,

			     struct mlxsw_sp_flow_block *block,

			     struct mlxsw_sp_port *mlxsw_sp_port,

			     bool ingress,

			     struct netlink_ext_ack *extack)

{

	struct mlxsw_sp_flow_block_binding *binding;

	int err;



	if (WARN_ON(mlxsw_sp_flow_block_lookup(block, mlxsw_sp_port, ingress)))

		return -EEXIST;



	if (ingress && block->ingress_blocker_rule_count) {

		NL_SET_ERR_MSG_MOD(extack, "Block cannot be bound to ingress because it contains unsupported rules");

		return -EOPNOTSUPP;

	}



	if (!ingress && block->egress_blocker_rule_count) {

		NL_SET_ERR_MSG_MOD(extack, "Block cannot be bound to egress because it contains unsupported rules");

		return -EOPNOTSUPP;

	}



	binding = kzalloc(sizeof(*binding), GFP_KERNEL);

	if (!binding)

		return -ENOMEM;

	binding->mlxsw_sp_port = mlxsw_sp_port;

	binding->ingress = ingress;



	if (mlxsw_sp_acl_ruleset_block_bound(block)) {

		err = mlxsw_sp_acl_ruleset_bind(mlxsw_sp, block, binding);

		if (err)

			goto err_ruleset_bind;

	}



	if (ingress)

		block->ingress_binding_count++;

	else

		block->egress_binding_count++;

	list_add(&binding->list, &block->binding_list);

	return 0;



err_ruleset_bind:

	kfree(binding);

	return err;

}



int mlxsw_sp_flow_block_unbind(struct mlxsw_sp *mlxsw_sp,

			       struct mlxsw_sp_flow_block *block,

			       struct mlxsw_sp_port *mlxsw_sp_port,

			       bool ingress)

{

	struct mlxsw_sp_flow_block_binding *binding;



	binding = mlxsw_sp_flow_block_lookup(block, mlxsw_sp_port, ingress);

	if (!binding)

		return -ENOENT;



	list_del(&binding->list);



	if (ingress)

		block->ingress_binding_count--;

	else

		block->egress_binding_count--;



	if (mlxsw_sp_acl_ruleset_block_bound(block))

		mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding);



	kfree(binding);

	return 0;

}



static struct mlxsw_sp_acl_ruleset *

mlxsw_sp_acl_ruleset_create(struct mlxsw_sp *mlxsw_sp,

			    struct mlxsw_sp_flow_block *block, u32 chain_index,

drivers/net/ethernet/mellanox/mlxsw/spectrum_flow.c

0 → 100644
+120 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

/* Copyright (c) 2017-2020 Mellanox Technologies. All rights reserved */



#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/errno.h>

#include <linux/list.h>

#include <net/net_namespace.h>



#include "spectrum.h"



struct mlxsw_sp_flow_block *

mlxsw_sp_flow_block_create(struct mlxsw_sp *mlxsw_sp, struct net *net)

{

	struct mlxsw_sp_flow_block *block;



	block = kzalloc(sizeof(*block), GFP_KERNEL);

	if (!block)

		return NULL;

	INIT_LIST_HEAD(&block->binding_list);

	block->mlxsw_sp = mlxsw_sp;

	block->net = net;

	return block;

}



void mlxsw_sp_flow_block_destroy(struct mlxsw_sp_flow_block *block)

{

	WARN_ON(!list_empty(&block->binding_list));

	kfree(block);

}



static struct mlxsw_sp_flow_block_binding *

mlxsw_sp_flow_block_lookup(struct mlxsw_sp_flow_block *block,

			   struct mlxsw_sp_port *mlxsw_sp_port, bool ingress)

{

	struct mlxsw_sp_flow_block_binding *binding;



	list_for_each_entry(binding, &block->binding_list, list)

		if (binding->mlxsw_sp_port == mlxsw_sp_port &&

		    binding->ingress == ingress)

			return binding;

	return NULL;

}



static bool

mlxsw_sp_flow_block_ruleset_bound(const struct mlxsw_sp_flow_block *block)

{

	return block->ruleset_zero;

}



int mlxsw_sp_flow_block_bind(struct mlxsw_sp *mlxsw_sp,

			     struct mlxsw_sp_flow_block *block,

			     struct mlxsw_sp_port *mlxsw_sp_port,

			     bool ingress,

			     struct netlink_ext_ack *extack)

{

	struct mlxsw_sp_flow_block_binding *binding;

	int err;



	if (WARN_ON(mlxsw_sp_flow_block_lookup(block, mlxsw_sp_port, ingress)))

		return -EEXIST;



	if (ingress && block->ingress_blocker_rule_count) {

		NL_SET_ERR_MSG_MOD(extack, "Block cannot be bound to ingress because it contains unsupported rules");

		return -EOPNOTSUPP;

	}



	if (!ingress && block->egress_blocker_rule_count) {

		NL_SET_ERR_MSG_MOD(extack, "Block cannot be bound to egress because it contains unsupported rules");

		return -EOPNOTSUPP;

	}



	binding = kzalloc(sizeof(*binding), GFP_KERNEL);

	if (!binding)

		return -ENOMEM;

	binding->mlxsw_sp_port = mlxsw_sp_port;

	binding->ingress = ingress;



	if (mlxsw_sp_flow_block_ruleset_bound(block)) {

		err = mlxsw_sp_acl_ruleset_bind(mlxsw_sp, block, binding);

		if (err)

			goto err_ruleset_bind;

	}



	if (ingress)

		block->ingress_binding_count++;

	else

		block->egress_binding_count++;

	list_add(&binding->list, &block->binding_list);

	return 0;



err_ruleset_bind:

	kfree(binding);

	return err;

}



int mlxsw_sp_flow_block_unbind(struct mlxsw_sp *mlxsw_sp,

			       struct mlxsw_sp_flow_block *block,

			       struct mlxsw_sp_port *mlxsw_sp_port,

			       bool ingress)

{

	struct mlxsw_sp_flow_block_binding *binding;



	binding = mlxsw_sp_flow_block_lookup(block, mlxsw_sp_port, ingress);

	if (!binding)

		return -ENOENT;



	list_del(&binding->list);



	if (ingress)

		block->ingress_binding_count--;

	else

		block->egress_binding_count--;



	if (mlxsw_sp_flow_block_ruleset_bound(block))

		mlxsw_sp_acl_ruleset_unbind(mlxsw_sp, block, binding);



	kfree(binding);

	return 0;

}

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