vnet: device flow offload infra

Change-Id: Ibea4a96bdec5e368301a03d8b11a0712fa0265e0
Signed-off-by: Damjan Marion <damarion@cisco.com>
This commit is contained in:
Damjan Marion
2018-03-16 01:25:27 +01:00
committed by Damjan Marion
parent cd330c878d
commit a35cc14d37
18 changed files with 1335 additions and 0 deletions

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src/vnet/flow/flow.c Normal file
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/*
* Copyright (c) 2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/flow/flow.h>
vnet_flow_main_t flow_main;
int
vnet_flow_get_range (vnet_main_t * vnm, char *owner, u32 count, u32 * start)
{
vnet_flow_main_t *fm = &flow_main;
vnet_flow_range_t *r;
/* skip 0 */
if (fm->flows_used == 0)
fm->flows_used = 1;
*start = fm->flows_used;
fm->flows_used += count;
vec_add2 (fm->ranges, r, 1);
r->start = *start;
r->count = count;
r->owner = format (0, "%s%c", owner, 0);
return 0;
}
int
vnet_flow_add (vnet_main_t * vnm, vnet_flow_t * flow, u32 * flow_index)
{
vnet_flow_main_t *fm = &flow_main;
vnet_flow_t *f;
pool_get (fm->global_flow_pool, f);
*flow_index = f - fm->global_flow_pool;
clib_memcpy (f, flow, sizeof (vnet_flow_t));
f->private_data = 0;
f->index = *flow_index;
return 0;
}
vnet_flow_t *
vnet_get_flow (u32 flow_index)
{
vnet_flow_main_t *fm = &flow_main;
if (pool_is_free_index (fm->global_flow_pool, flow_index))
return 0;
return pool_elt_at_index (fm->global_flow_pool, flow_index);
}
int
vnet_flow_del (vnet_main_t * vnm, u32 flow_index)
{
vnet_flow_main_t *fm = &flow_main;
vnet_flow_t *f = vnet_get_flow (flow_index);
uword hw_if_index;
uword private_data;
if (f == 0)
return VNET_FLOW_ERROR_NO_SUCH_ENTRY;
/* *INDENT-OFF* */
hash_foreach (hw_if_index, private_data, f->private_data,
({
vnet_flow_disable (vnm, flow_index, hw_if_index);
}));
/* *INDENT-ON* */
hash_free (f->private_data);
memset (f, 0, sizeof (*f));
pool_put (fm->global_flow_pool, f);
return 0;
}
int
vnet_flow_enable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index)
{
vnet_flow_t *f = vnet_get_flow (flow_index);
vnet_hw_interface_t *hi;
vnet_device_class_t *dev_class;
uword private_data;
int rv;
if (!vnet_hw_interface_is_valid (vnm, hw_if_index))
return VNET_FLOW_ERROR_NO_SUCH_INTERFACE;
/* don't enable flow twice */
if (hash_get (f->private_data, hw_if_index) != 0)
return VNET_FLOW_ERROR_ALREADY_DONE;
hi = vnet_get_hw_interface (vnm, hw_if_index);
dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
if (dev_class->flow_ops_function == 0)
return VNET_FLOW_ERROR_NOT_SUPPORTED;
rv = dev_class->flow_ops_function (vnm, VNET_FLOW_DEV_OP_ADD_FLOW,
hi->dev_instance, flow_index,
&private_data);
if (rv)
return rv;
hash_set (f->private_data, hw_if_index, private_data);
return 0;
}
int
vnet_flow_disable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index)
{
vnet_flow_t *f = vnet_get_flow (flow_index);
vnet_hw_interface_t *hi;
vnet_device_class_t *dev_class;
uword *p;
int rv;
if (!vnet_hw_interface_is_valid (vnm, hw_if_index))
return VNET_FLOW_ERROR_NO_SUCH_INTERFACE;
/* don't disable if not enabled */
if ((p = hash_get (f->private_data, hw_if_index)) == 0)
return VNET_FLOW_ERROR_ALREADY_DONE;
hi = vnet_get_hw_interface (vnm, hw_if_index);
dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
rv = dev_class->flow_ops_function (vnm, VNET_FLOW_DEV_OP_DEL_FLOW,
hi->dev_instance, flow_index, p);
if (rv)
return rv;
hash_unset (f->private_data, hw_if_index);
return 0;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/

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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef included_vnet_flow_flow_h
#define included_vnet_flow_flow_h
#include <vppinfra/clib.h>
#include <vnet/unix/pcap.h>
#include <vnet/l3_types.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
#define foreach_flow_type \
_(IP4_N_TUPLE, ip4_n_tuple, "ipv4-n-tuple") \
_(IP6_N_TUPLE, ip6_n_tuple, "ipv4-n-tuple") \
_(IP4_VXLAN, ip4_vxlan, "ipv4-vxlan") \
_(IP6_VXLAN, ip6_vxlan, "ipv6-vxlan")
#define foreach_flow_entry_ip4_n_tuple \
_fe(ip4_address_and_mask_t, src_addr) \
_fe(ip4_address_and_mask_t, dst_addr) \
_fe(ip_port_and_mask_t, src_port) \
_fe(ip_port_and_mask_t, dst_port) \
_fe(ip_protocol_t, protocol)
#define foreach_flow_entry_ip6_n_tuple \
_fe(ip6_address_and_mask_t, src_addr) \
_fe(ip6_address_and_mask_t, dst_addr) \
_fe(ip_port_and_mask_t, src_port) \
_fe(ip_port_and_mask_t, dst_port) \
_fe(ip_protocol_t, protocol)
#define foreach_flow_entry_ip4_vxlan \
_fe(ip4_address_t, src_addr) \
_fe(ip4_address_t, dst_addr) \
_fe(u16, dst_port) \
_fe(u16, vni)
#define foreach_flow_entry_ip6_vxlan \
_fe(ip6_address_t, src_addr) \
_fe(ip6_address_t, dst_addr) \
_fe(u16, dst_port) \
_fe(u16, vni)
#define foreach_flow_action \
_(0, COUNT, "count") \
_(1, MARK, "mark") \
_(2, BUFFER_ADVANCE, "buffer-advance") \
_(3, REDIRECT_TO_NODE, "redirect-to-node") \
_(4, REDIRECT_TO_QUEUE, "redirect-to-queue") \
_(5, DROP, "drop")
typedef enum
{
#define _(v,n,s) VNET_FLOW_ACTION_##n = (1 << v),
foreach_flow_action
#undef _
} vnet_flow_action_t;
#define foreach_flow_error \
_( -1, NOT_SUPPORTED, "not supported") \
_( -2, ALREADY_DONE, "already done") \
_( -3, ALREADY_EXISTS, "already exists") \
_( -4, NO_SUCH_ENTRY, "no such entry") \
_( -5, NO_SUCH_INTERFACE, "no such interface") \
_( -6, INTERNAL, "internal error")
typedef enum
{
VNET_FLOW_NO_ERROR = 0,
#define _(v,n,s) VNET_FLOW_ERROR_##n = v,
foreach_flow_error
#undef _
} vnet_flow_error_t;
typedef struct
{
u16 port, mask;
} ip_port_and_mask_t;
typedef enum
{
VNET_FLOW_TYPE_UNKNOWN,
#define _(a,b,c) VNET_FLOW_TYPE_##a,
foreach_flow_type
#undef _
VNET_FLOW_N_TYPES,
} vnet_flow_type_t;
/*
* Create typedef struct vnet_flow_XXX_t
*/
#define _fe(a, b) a b;
#define _(a,b,c) \
typedef struct { \
int foo; \
foreach_flow_entry_##b \
} vnet_flow_##b##_t;
foreach_flow_type;
#undef _
#undef _fe
/* main flow struct */
typedef struct
{
/* flow type */
vnet_flow_type_t type;
/* flow index */
u32 index;
/* bitmap of flow actions (VNET_FLOW_ACTION_*) */
u32 actions;
/* flow id for VNET_FLOW_ACTION_MARK */
u32 mark_flow_id;
/* node index and next index for VNET_FLOW_ACTION_REDIRECT_TO_NODE */
u32 redirect_node_index;
u32 redirect_device_input_next_index;
/* queue for VNET_FLOW_ACTION_REDIRECT_TO_QUEUE */
u32 redirect_queue;
/* buffer offset for VNET_FLOW_ACTION_BUFFER_ADVANCE */
i32 buffer_advance;
union
{
#define _(a,b,c) vnet_flow_##b##_t b;
foreach_flow_type
#undef _
};
/* per-interface private data */
uword *private_data;
} vnet_flow_t;
int vnet_flow_get_range (vnet_main_t * vnm, char *owner, u32 count,
u32 * start);
int vnet_flow_add (vnet_main_t * vnm, vnet_flow_t * flow, u32 * flow_index);
int vnet_flow_enable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index);
int vnet_flow_disable (vnet_main_t * vnm, u32 flow_index, u32 hw_if_index);
int vnet_flow_del (vnet_main_t * vnm, u32 flow_index);
vnet_flow_t *vnet_get_flow (u32 flow_index);
typedef struct
{
u32 start;
u32 count;
u8 *owner;
} vnet_flow_range_t;
typedef struct
{
/* pool of device flow entries */
vnet_flow_t *global_flow_pool;
/* flow ids allocated */
u32 flows_used;
/* vector of flow ranges */
vnet_flow_range_t *ranges;
} vnet_flow_main_t;
extern vnet_flow_main_t flow_main;
format_function_t format_flow_actions;
#endif /* included_vnet_flow_flow_h */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/

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src/vnet/flow/flow_cli.c Normal file

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