[PATCH v2] common/cnxk: allow enabling IOVA field in mbuf

[Shijith Thotton]

The value of RTE_IOVA_IN_MBUF has always been disabled on CNXK
platforms, as IOVA in the mbuf is unnecessary. This update changes that
behavior to respect the value set by the user. A warning message will be
printed if the build is configured to enable IOVA on the CNXK platform.

Signed-off-by: Shijith Thotton <sthotton at marvell.com>
---
v2:
- Don't override the default value of RTE_IOVA_IN_MBUF in CNXK platform.
- Print a warning message if IOVA in mbuf is enabled on CNXK platform.

 config/arm/meson.build          | 8 ++------
 drivers/common/cnxk/meson.build | 6 ++++++
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/config/arm/meson.build b/config/arm/meson.build
index 55be7c8711..20f7f6508c 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -459,10 +459,7 @@ soc_cn9k = {
     'description': 'Marvell OCTEON 9',
     'implementer': '0x43',
     'part_number': '0xb2',
-    'numa': false,
-    'flags': [
-        ['RTE_IOVA_IN_MBUF', 0]
-    ]
+    'numa': false
 }
 
 soc_cn10k = {
@@ -471,8 +468,7 @@ soc_cn10k = {
     'flags': [
         ['RTE_MAX_LCORE', 24],
         ['RTE_MAX_NUMA_NODES', 1],
-        ['RTE_MEMPOOL_ALIGN', 128],
-        ['RTE_IOVA_IN_MBUF', 0]
+        ['RTE_MEMPOOL_ALIGN', 128]
     ],
     'part_number': '0xd49',
     'extra_march_features': ['crypto'],
diff --git a/drivers/common/cnxk/meson.build b/drivers/common/cnxk/meson.build
index abb0f6f01f..293a47524b 100644
--- a/drivers/common/cnxk/meson.build
+++ b/drivers/common/cnxk/meson.build
@@ -108,4 +108,10 @@ deps += ['bus_pci', 'net', 'telemetry']
 
 require_iova_in_mbuf = false
 
+cnxk_socs = ['cn9k', 'cn10k', 'cn20k']
+
+if dpdk_conf.get('RTE_IOVA_IN_MBUF') == 1 and soc_type in cnxk_socs
+    warning('IOVA in mbuf is not required on platform ' + soc_type)
+endif
+
 annotate_locks = false
-- 
2.25.1