ethdev: remove DUP action from flow API

Upcoming changes in relation to the handling of actions list will make the
DUP action redundant as specifying several QUEUE actions will achieve the
same behavior. Besides, no PMD implements this action.

By removing an entry from enum rte_flow_action_type, this patch breaks ABI
compatibility for the following public functions:

- rte_flow_copy()
- rte_flow_create()
- rte_flow_query()
- rte_flow_validate()

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>

diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index f0b4b7b..2ddb08f 100644 (file)
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -164,8 +164,6 @@ enum index {
        ACTION_QUEUE_INDEX,
        ACTION_DROP,
        ACTION_COUNT,
-       ACTION_DUP,
-       ACTION_DUP_INDEX,
        ACTION_RSS,
        ACTION_RSS_TYPES,
        ACTION_RSS_TYPE,
@@ -625,7 +623,6 @@ static const enum index next_action[] = {
        ACTION_QUEUE,
        ACTION_DROP,
        ACTION_COUNT,
-       ACTION_DUP,
        ACTION_RSS,
        ACTION_PF,
        ACTION_VF,
@@ -645,12 +642,6 @@ static const enum index action_queue[] = {
        ZERO,
 };
 
-static const enum index action_dup[] = {
-       ACTION_DUP_INDEX,
-       ACTION_NEXT,
-       ZERO,
-};
-
 static const enum index action_rss[] = {
        ACTION_RSS_TYPES,
        ACTION_RSS_KEY,
@@ -1597,20 +1588,6 @@ static const struct token token_list[] = {
                .next = NEXT(NEXT_ENTRY(ACTION_NEXT)),
                .call = parse_vc,
        },
-       [ACTION_DUP] = {
-               .name = "dup",
-               .help = "duplicate packets to a given queue index",
-               .priv = PRIV_ACTION(DUP, sizeof(struct rte_flow_action_dup)),
-               .next = NEXT(action_dup),
-               .call = parse_vc,
-       },
-       [ACTION_DUP_INDEX] = {
-               .name = "index",
-               .help = "queue index to duplicate packets to",
-               .next = NEXT(action_dup, NEXT_ENTRY(UNSIGNED)),
-               .args = ARGS(ARGS_ENTRY(struct rte_flow_action_dup, index)),
-               .call = parse_vc_conf,
-       },
        [ACTION_RSS] = {
                .name = "rss",
                .help = "spread packets among several queues",

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index f3ff008..d5862ce 100644 (file)
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1082,7 +1082,6 @@ static const struct {
        MK_FLOW_ACTION(QUEUE, sizeof(struct rte_flow_action_queue)),
        MK_FLOW_ACTION(DROP, 0),
        MK_FLOW_ACTION(COUNT, 0),
-       MK_FLOW_ACTION(DUP, sizeof(struct rte_flow_action_dup)),
        MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)), /* +queue[] */
        MK_FLOW_ACTION(PF, 0),
        MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),

diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index 51826d0..a237e4f 100644 (file)
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -1299,26 +1299,6 @@ Query structure to retrieve and reset flow rule counters:
    | ``bytes``     | out | number of bytes through this rule |
    +---------------+-----+-----------------------------------+
 
-Action: ``DUP``
-^^^^^^^^^^^^^^^
-
-Duplicates packets to a given queue index.
-
-This is normally combined with QUEUE, however when used alone, it is
-actually similar to QUEUE + PASSTHRU.
-
-- Non-terminating by default.
-
-.. _table_rte_flow_action_dup:
-
-.. table:: DUP
-
-   +-----------+------------------------------------+
-   | Field     | Value                              |
-   +===========+====================================+
-   | ``index`` | queue index to duplicate packet to |
-   +-----------+------------------------------------+
-
 Action: ``RSS``
 ^^^^^^^^^^^^^^^
 
@@ -2010,9 +1990,6 @@ Unsupported actions
   and tagging (`Action: MARK`_ or `Action: FLAG`_) may be implemented in
   software as long as the target queue is used by a single rule.
 
-- A rule specifying both `Action: DUP`_ + `Action: QUEUE`_ may be translated
-  to two hidden rules combining `Action: QUEUE`_ and `Action: PASSTHRU`_.
-
 - When a single target queue is provided, `Action: RSS`_ can also be
   implemented through `Action: QUEUE`_.
 

diff --git a/doc/guides/rel_notes/release_18_05.rst b/doc/guides/rel_notes/release_18_05.rst
index 816ab23..e6865c9 100644 (file)
--- a/doc/guides/rel_notes/release_18_05.rst
+++ b/doc/guides/rel_notes/release_18_05.rst
@@ -258,6 +258,8 @@ API Changes
    fall-back value. Previously, setting ``nb_tx_desc`` to zero would have
    resulted in an error.
 
+* ethdev: unused DUP action was removed from the flow API.
+
 
 ABI Changes
 -----------
@@ -298,12 +300,13 @@ ABI Changes
   type ``uint16_t``: ``burst_size``, ``ring_size``, and ``nb_queues``. These
   are parameter values recommended for use by the PMD.
 
-* ethdev: ABI for most flow API functions was updated.
+* ethdev: ABI for all flow API functions was updated.
 
-  This includes functions ``rte_flow_create``, ``rte_flow_destroy``,
-  ``rte_flow_error_set``, ``rte_flow_flush``, ``rte_flow_isolate``,
-  ``rte_flow_query`` and ``rte_flow_validate``, due to changes in error type
-  definitions (``enum rte_flow_error_type``).
+  This includes functions ``rte_flow_copy``, ``rte_flow_create``,
+  ``rte_flow_destroy``, ``rte_flow_error_set``, ``rte_flow_flush``,
+  ``rte_flow_isolate``, ``rte_flow_query`` and ``rte_flow_validate``, due to
+  changes in error type definitions (``enum rte_flow_error_type``) and
+  removal of the unused DUP action (``enum rte_flow_action_type``).
 
 
 Removed Items

diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index 06caea3..68c286b 100644 (file)
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -3385,10 +3385,6 @@ actions can sometimes be combined when the end result is unambiguous::
 
    drop / queue index 6 / end # drop has no effect
 
-::
-
-   drop / dup index 6 / end # same as above
-
 ::
 
    queue index 6 / rss queues 6 7 8 / end # queue has no effect
@@ -3424,10 +3420,6 @@ This section lists supported actions and their attributes, if any.
 
 - ``count``: enable counters for this rule.
 
-- ``dup``: duplicate packets to a given queue index.
-
-  - ``index {unsigned}``: queue index to duplicate packets to.
-
 - ``rss``: spread packets among several queues.
 
   - ``types [{RSS hash type} [...]] end``: RSS hash types, allowed tokens

diff --git a/lib/librte_ether/rte_ethdev_version.map b/lib/librte_ether/rte_ethdev_version.map
index 180d2ca..29ca68e 100644 (file)
--- a/lib/librte_ether/rte_ethdev_version.map
+++ b/lib/librte_ether/rte_ethdev_version.map
@@ -147,7 +147,6 @@ DPDK_17.08 {
 
        _rte_eth_dev_callback_process;
        rte_eth_dev_adjust_nb_rx_tx_desc;
-       rte_flow_copy;
        rte_tm_capabilities_get;
        rte_tm_hierarchy_commit;
        rte_tm_level_capabilities_get;
@@ -201,6 +200,7 @@ DPDK_18.05 {
 
        rte_eth_dev_count_avail;
        rte_eth_find_next_owned_by;
+       rte_flow_copy;
        rte_flow_create;
        rte_flow_destroy;
        rte_flow_error_set;

diff --git a/lib/librte_ether/rte_flow.c b/lib/librte_ether/rte_flow.c
index ada2808..80f9cb6 100644 (file)
--- a/lib/librte_ether/rte_flow.c
+++ b/lib/librte_ether/rte_flow.c
@@ -73,7 +73,6 @@ static const struct rte_flow_desc_data rte_flow_desc_action[] = {
        MK_FLOW_ACTION(QUEUE, sizeof(struct rte_flow_action_queue)),
        MK_FLOW_ACTION(DROP, 0),
        MK_FLOW_ACTION(COUNT, 0),
-       MK_FLOW_ACTION(DUP, sizeof(struct rte_flow_action_dup)),
        MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)), /* +queue[] */
        MK_FLOW_ACTION(PF, 0),
        MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),

diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
index d28a2a4..6ace24f 100644 (file)
--- a/lib/librte_ether/rte_flow.h
+++ b/lib/librte_ether/rte_flow.h
@@ -960,16 +960,6 @@ enum rte_flow_action_type {
         */
        RTE_FLOW_ACTION_TYPE_COUNT,
 
-       /**
-        * Duplicates packets to a given queue index.
-        *
-        * This is normally combined with QUEUE, however when used alone, it
-        * is actually similar to QUEUE + PASSTHRU.
-        *
-        * See struct rte_flow_action_dup.
-        */
-       RTE_FLOW_ACTION_TYPE_DUP,
-
        /**
         * Similar to QUEUE, except RSS is additionally performed on packets
         * to spread them among several queues according to the provided
@@ -1051,20 +1041,6 @@ struct rte_flow_query_count {
        uint64_t bytes; /**< Number of bytes through this rule [out]. */
 };
 
-/**
- * RTE_FLOW_ACTION_TYPE_DUP
- *
- * Duplicates packets to a given queue index.
- *
- * This is normally combined with QUEUE, however when used alone, it is
- * actually similar to QUEUE + PASSTHRU.
- *
- * Non-terminating by default.
- */
-struct rte_flow_action_dup {
-       uint16_t index; /**< Queue index to duplicate packets to. */
-};
-
 /**
  * RTE_FLOW_ACTION_TYPE_RSS
  *