patch 'acl: fix rules with 8-byte field size' has been queued to stable release 21.11.2

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/13/22. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/7bbf330ca1699c46309144027c93471a18929eec

Thanks.

Kevin

---
>From 7bbf330ca1699c46309144027c93471a18929eec Mon Sep 17 00:00:00 2001
From: Konstantin Ananyev <konstantin.v.ananyev at yandex.ru>
Date: Sun, 15 May 2022 21:03:18 +0100
Subject: [PATCH] acl: fix rules with 8-byte field size

[ upstream commit 451098159c2209bc5c395a30d2dae325af93e8c2 ]

In theory ACL library allows fields with 8B long.
Though in practice they usually not used, not tested,
and as was revealed by Ido, this functionality is not working properly.
There are few places inside ACL build code-path that need to be addressed.

Bugzilla ID: 673
Fixes: dc276b5780c2 ("acl: new library")

Reported-by: Ido Goshen <ido at cgstowernetworks.com>
Signed-off-by: Konstantin Ananyev <konstantin.v.ananyev at yandex.ru>
Tested-by: Ido Goshen <ido at cgstowernetworks.com>
---
 lib/acl/acl_bld.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/lib/acl/acl_bld.c b/lib/acl/acl_bld.c
index 7ea30f4186..2816632803 100644
--- a/lib/acl/acl_bld.c
+++ b/lib/acl/acl_bld.c
@@ -13,4 +13,7 @@
 #define ACL_PTR_ALLOC	32
 
+/* account for situation when all fields are 8B long */
+#define ACL_MAX_INDEXES	(2 * RTE_ACL_MAX_FIELDS)
+
 /* macros for dividing rule sets heuristics */
 #define NODE_MAX	0x4000
@@ -81,5 +84,5 @@ struct acl_build_context {
 	struct rte_acl_trie       tries[RTE_ACL_MAX_TRIES];
 	struct rte_acl_bld_trie   bld_tries[RTE_ACL_MAX_TRIES];
-	uint32_t            data_indexes[RTE_ACL_MAX_TRIES][RTE_ACL_MAX_FIELDS];
+	uint32_t            data_indexes[RTE_ACL_MAX_TRIES][ACL_MAX_INDEXES];
 
 	/* memory free lists for nodes and blocks used for node ptrs */
@@ -989,5 +992,5 @@ build_trie(struct acl_build_context *context, struct rte_acl_build_rule *head,
 				uint64_t mask;
 				mask = RTE_ACL_MASKLEN_TO_BITMASK(
-					fld->mask_range.u32,
+					fld->mask_range.u64,
 					rule->config->defs[n].size);
 
@@ -1302,4 +1305,7 @@ acl_build_index(const struct rte_acl_config *config, uint32_t *data_index)
 			last_header = config->defs[n].input_index;
 			data_index[m++] = config->defs[n].offset;
+			if (config->defs[n].size > sizeof(uint32_t))
+				data_index[m++] = config->defs[n].offset +
+					sizeof(uint32_t);
 		}
 	}
@@ -1488,5 +1494,5 @@ acl_set_data_indexes(struct rte_acl_ctx *ctx)
 			n * sizeof(ctx->data_indexes[0]));
 		ctx->trie[i].data_index = ctx->data_indexes + ofs;
-		ofs += RTE_ACL_MAX_FIELDS;
+		ofs += ACL_MAX_INDEXES;
 	}
 }
@@ -1644,5 +1650,5 @@ rte_acl_build(struct rte_acl_ctx *ctx, const struct rte_acl_config *cfg)
 			rc = rte_acl_gen(ctx, bcx.tries, bcx.bld_tries,
 				bcx.num_tries, bcx.cfg.num_categories,
-				RTE_ACL_MAX_FIELDS * RTE_DIM(bcx.tries) *
+				ACL_MAX_INDEXES * RTE_DIM(bcx.tries) *
 				sizeof(ctx->data_indexes[0]), max_size);
 			if (rc == 0) {
-- 
2.34.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-06-09 12:34:29.913213048 +0100
+++ 0005-acl-fix-rules-with-8-byte-field-size.patch	2022-06-09 12:34:29.611980412 +0100
@@ -1 +1 @@
-From 451098159c2209bc5c395a30d2dae325af93e8c2 Mon Sep 17 00:00:00 2001
+From 7bbf330ca1699c46309144027c93471a18929eec Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 451098159c2209bc5c395a30d2dae325af93e8c2 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org