patch 'fib6: add runtime checks in AVX512 lookup' has been queued to stable release 21.11.9

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/02/24. 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/757dde39189e5f7b4aa7db06cdf6adc0794f9557

Thanks.

Kevin

---
>From 757dde39189e5f7b4aa7db06cdf6adc0794f9557 Mon Sep 17 00:00:00 2001
From: Vladimir Medvedkin <vladimir.medvedkin at intel.com>
Date: Tue, 8 Oct 2024 17:31:36 +0000
Subject: [PATCH] fib6: add runtime checks in AVX512 lookup

[ upstream commit 45ddc5660f9830f3b7b39ddaf57af02e80d589a4 ]

AVX512 lookup function requires CPU to support RTE_CPUFLAG_AVX512DQ and
RTE_CPUFLAG_AVX512BW. Add runtime checks of these two flags when deciding
if vector function can be used.

Fixes: 1e5630e40d95 ("fib6: add AVX512 lookup")

Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin at intel.com>
Reviewed-by: David Marchand <david.marchand at redhat.com>
---
 lib/fib/trie.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/fib/trie.c b/lib/fib/trie.c
index b096743086..e7ea4f2be2 100644
--- a/lib/fib/trie.c
+++ b/lib/fib/trie.c
@@ -52,6 +52,8 @@ get_vector_fn(enum rte_fib_trie_nh_sz nh_sz)
 {
 #ifdef CC_TRIE_AVX512_SUPPORT
-	if ((rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) <= 0) ||
-			(rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_512))
+	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) <= 0 ||
+			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512DQ) <= 0 ||
+			rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512BW) <= 0 ||
+			rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_512)
 		return NULL;
 	switch (nh_sz) {
-- 
2.47.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-11-27 17:17:38.915344568 +0000
+++ 0019-fib6-add-runtime-checks-in-AVX512-lookup.patch	2024-11-27 17:17:38.174269109 +0000
@@ -1 +1 @@
-From 45ddc5660f9830f3b7b39ddaf57af02e80d589a4 Mon Sep 17 00:00:00 2001
+From 757dde39189e5f7b4aa7db06cdf6adc0794f9557 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 45ddc5660f9830f3b7b39ddaf57af02e80d589a4 ]
+
@@ -11 +12,0 @@
-Cc: stable at dpdk.org
@@ -20 +21 @@
-index 09470e7287..7b33cdaa7b 100644
+index b096743086..e7ea4f2be2 100644
@@ -23 +24 @@
-@@ -47,6 +47,8 @@ get_vector_fn(enum rte_fib_trie_nh_sz nh_sz)
+@@ -52,6 +52,8 @@ get_vector_fn(enum rte_fib_trie_nh_sz nh_sz)