diff mbox series

[v2] table: relax requirements for table entry action data

Message ID 20210326202224.15655-1-cristian.dumitrescu@intel.com (mailing list archive)
State Accepted
Delegated to: Thomas Monjalon
Headers show
Series [v2] table: relax requirements for table entry action data | expand

Checks

Context Check Description
ci/intel-Testing success Testing PASS
ci/Intel-compilation success Compilation OK
ci/iol-testing success Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-abi-testing success Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/github-robot success github build: passed
ci/travis-robot success travis build: passed
ci/checkpatch success coding style OK

Commit Message

Dumitrescu, Cristian March 26, 2021, 8:22 p.m. UTC
From: Churchill Khangar <churchill.khangar@intel.com>

Currently, the table entry action data is required to be NULL when the
action data size is zero. We now require that action data is ignored
when the action data size is zero. This is to allow for a table entry
instance to be allocated once with max action data size for the table
and reused repeatedly for actions of different sizes, including zero.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Churchill Khangar <churchill.khangar@intel.com>
---
 lib/librte_pipeline/rte_swx_ctl.c | 3 +--
 lib/librte_table/rte_swx_table.h  | 9 +++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

Comments

Thomas Monjalon April 19, 2021, 6:21 p.m. UTC | #1
26/03/2021 21:22, Cristian Dumitrescu:
> From: Churchill Khangar <churchill.khangar@intel.com>
> 
> Currently, the table entry action data is required to be NULL when the
> action data size is zero. We now require that action data is ignored
> when the action data size is zero. This is to allow for a table entry
> instance to be allocated once with max action data size for the table
> and reused repeatedly for actions of different sizes, including zero.
> 
> Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
> Signed-off-by: Churchill Khangar <churchill.khangar@intel.com>

Applied, thanks
diff mbox series

Patch

diff --git a/lib/librte_pipeline/rte_swx_ctl.c b/lib/librte_pipeline/rte_swx_ctl.c
index 2e4538bd0..ca30767ef 100644
--- a/lib/librte_pipeline/rte_swx_ctl.c
+++ b/lib/librte_pipeline/rte_swx_ctl.c
@@ -338,8 +338,7 @@  table_entry_check(struct rte_swx_ctl_pipeline *ctl,
 
 		/* action_data. */
 		a = &ctl->actions[entry->action_id];
-		CHECK((a->data_size && entry->action_data) ||
-		      (!a->data_size && !entry->action_data), EINVAL);
+		CHECK(!(a->data_size && !entry->action_data), EINVAL);
 	}
 
 	return 0;
diff --git a/lib/librte_table/rte_swx_table.h b/lib/librte_table/rte_swx_table.h
index 00446718f..e23f2304c 100644
--- a/lib/librte_table/rte_swx_table.h
+++ b/lib/librte_table/rte_swx_table.h
@@ -101,10 +101,11 @@  struct rte_swx_table_entry {
 	/** Action ID for the current entry. */
 	uint64_t action_id;
 
-	/** Action data for the current entry. Its size is defined by the action
-	 * specified by the *action_id*. It must be NULL when the action data
-	 * size of the *action_id* action is NULL. It must never exceed the
-	 * *action_data_size* of the table.
+	/** Action data for the current entry. Considering S as the action data
+	 * size of the *action_id* action, which must be less than or equal to
+	 * the table *action_data_size*, the *action_data* field must point to
+	 * an array of S bytes when S is non-zero. The *action_data* field is
+	 * ignored when S is zero.
 	 */
 	uint8_t *action_data;
 };