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ethdev: add port representor item to flow API

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For use in "transfer" flows. Supposed to match traffic
entering the embedded switch from the given ethdev.

Must not be combined with direction attributes.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Acked-by: Ori Kam <orika@nvidia.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
This commit is contained in:
Ivan Malov 2021-10-13 20:34:37 +03:00 committed by Ferruh Yigit
parent f9bdee267a
commit 081e42dab1
7 changed files with 121 additions and 0 deletions
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27
app/test-pmd/cmdline_flow.c
View File

@ -306,6 +306,8 @@ enum index {
ITEM_POL_PORT,
ITEM_POL_METER,
ITEM_POL_POLICY,
ITEM_PORT_REPRESENTOR,
ITEM_PORT_REPRESENTOR_PORT_ID,
/* Validate/create actions. */
ACTIONS,
@ -999,6 +1001,7 @@ static const enum index next_item[] = {
ITEM_GENEVE_OPT,
ITEM_INTEGRITY,
ITEM_CONNTRACK,
ITEM_PORT_REPRESENTOR,
END_SET,
ZERO,
};
@ -1367,6 +1370,12 @@ static const enum index item_integrity_lv[] = {
ZERO,
};
static const enum index item_port_representor[] = {
ITEM_PORT_REPRESENTOR_PORT_ID,
ITEM_NEXT,
ZERO,
};
static const enum index next_action[] = {
ACTION_END,
ACTION_VOID,
@ -3606,6 +3615,21 @@ static const struct token token_list[] = {
item_param),
.args = ARGS(ARGS_ENTRY(struct rte_flow_item_conntrack, flags)),
},
[ITEM_PORT_REPRESENTOR] = {
.name = "port_representor",
.help = "match traffic entering the embedded switch from the given ethdev",
.priv = PRIV_ITEM(PORT_REPRESENTOR,
sizeof(struct rte_flow_item_ethdev)),
.next = NEXT(item_port_representor),
.call = parse_vc,
},
[ITEM_PORT_REPRESENTOR_PORT_ID] = {
.name = "port_id",
.help = "ethdev port ID",
.next = NEXT(item_port_representor, NEXT_ENTRY(COMMON_UNSIGNED),
item_param),
.args = ARGS(ARGS_ENTRY(struct rte_flow_item_ethdev, port_id)),
},
/* Validate/create actions. */
[ACTIONS] = {
.name = "actions",
@ -8333,6 +8357,9 @@ flow_item_default_mask(const struct rte_flow_item *item)
case RTE_FLOW_ITEM_TYPE_PFCP:
mask = &rte_flow_item_pfcp_mask;
break;
case RTE_FLOW_ITEM_TYPE_PORT_REPRESENTOR:
mask = &rte_flow_item_ethdev_mask;
break;
default:
break;
}

1
doc/guides/nics/features/default.ini
View File

@ -120,6 +120,7 @@ pf =
pfcp =
phy_port =
port_id =
port_representor =
pppoed =
pppoes =
pppoe_proto_id =

59
doc/guides/prog_guide/rte_flow.rst
View File

@ -1425,6 +1425,65 @@ Matches a conntrack state after conntrack action.
- ``flags``: conntrack packet state flags.
- Default ``mask`` matches all state bits.
Item: ``PORT_REPRESENTOR``
^^^^^^^^^^^^^^^^^^^^^^^^^^
Matches traffic entering the embedded switch from the given ethdev.
Term **ethdev** and the concept of **port representor** are synonymous.
The **represented port** is an *entity* plugged to the embedded switch
at the opposite end of the "wire" leading to the ethdev.
::
.--------------------.
| PORT_REPRESENTOR | Ethdev (Application Port Referred to by its ID)
'--------------------'
||
\/
.----------------.
| Logical Port |
'----------------'
||
||
||
\/
.----------.
| Switch |
'----------'
:
:
:
:
.----------------.
| Logical Port |
'----------------'
:
:
.--------------------.
| REPRESENTED_PORT | Net / Guest / Another Ethdev (Same Application)
'--------------------'
- Incompatible with `Attribute: Traffic direction`_.
- Requires `Attribute: Transfer`_.
.. _table_rte_flow_item_ethdev:
.. table:: ``struct rte_flow_item_ethdev``
+----------+-------------+---------------------------+
| Field | Subfield | Value |
+==========+=============+===========================+
| ``spec`` | ``port_id`` | ethdev port ID |
+----------+-------------+---------------------------+
| ``last`` | ``port_id`` | upper range value |
+----------+-------------+---------------------------+
| ``mask`` | ``port_id`` | zeroed for wildcard match |
+----------+-------------+---------------------------+
- Default ``mask`` provides exact match behaviour.
Actions
~~~~~~~

2
doc/guides/rel_notes/release_21_11.rst
View File

@ -294,6 +294,8 @@ API Changes
* net: Renamed ``s_addr`` and ``d_addr`` fields of ``rte_ether_hdr`` structure
to ``src_addr`` and ``dst_addr``, respectively.
* ethdev: Added item ``PORT_REPRESENTOR`` to flow API.
* cryptodev: The API rte_cryptodev_pmd_is_valid_dev is modified to
rte_cryptodev_is_valid_dev as it can be used by the application as
well as PMD to check whether the device is valid or not.

4
doc/guides/testpmd_app_ug/testpmd_funcs.rst
View File

@ -3801,6 +3801,10 @@ This section lists supported pattern items and their attributes, if any.
- ``conntrack``: match conntrack state.
- ``port_representor``: match traffic entering the embedded switch from the given ethdev
- ``port_id {unsigned}``: ethdev port ID
Actions list
^^^^^^^^^^^^

1
lib/ethdev/rte_flow.c
View File

@ -100,6 +100,7 @@ static const struct rte_flow_desc_data rte_flow_desc_item[] = {
MK_FLOW_ITEM(GENEVE_OPT, sizeof(struct rte_flow_item_geneve_opt)),
MK_FLOW_ITEM(INTEGRITY, sizeof(struct rte_flow_item_integrity)),
MK_FLOW_ITEM(CONNTRACK, sizeof(uint32_t)),
MK_FLOW_ITEM(PORT_REPRESENTOR, sizeof(struct rte_flow_item_ethdev)),
};
/** Generate flow_action[] entry. */

27
lib/ethdev/rte_flow.h
View File

@ -574,6 +574,15 @@ enum rte_flow_item_type {
* @see struct rte_flow_item_conntrack.
*/
RTE_FLOW_ITEM_TYPE_CONNTRACK,
/**
* [META]
*
* Matches traffic entering the embedded switch from the given ethdev.
*
* @see struct rte_flow_item_ethdev
*/
RTE_FLOW_ITEM_TYPE_PORT_REPRESENTOR,
};
/**
@ -1799,6 +1808,24 @@ static const struct rte_flow_item_conntrack rte_flow_item_conntrack_mask = {
};
#endif
/**
* @warning
* @b EXPERIMENTAL: this structure may change without prior notice
*
* Provides an ethdev port ID for use with the following items:
* RTE_FLOW_ITEM_TYPE_PORT_REPRESENTOR.
*/
struct rte_flow_item_ethdev {
uint16_t port_id; /**< ethdev port ID */
};
/** Default mask for items based on struct rte_flow_item_ethdev */
#ifndef __cplusplus
static const struct rte_flow_item_ethdev rte_flow_item_ethdev_mask = {
.port_id = 0xffff,
};
#endif
/**
* Matching pattern item definition.
*