[PATCH v2] common/mlx5: enable operation in iova virtual address mode

[Viacheslav Ovsiienko]

The ConnectX NIC series hardware provides advanced internal
MMU option and can operate directly over virtual addresses,
the host software should not care about any virtual-to-physical
address translations. It means the mlx5 PMDs can operate in DPDK
IOVA VA (virtual address) mode transparently.

To force IOVA VA mode the DPDK should be built with meson option:

  enable_iova_as_pa=false

With this option only drivers supporting IOVA VA mode are enabled.
This patch marks mlx5 drivers with require_iova_in_mbuf flag false
value, thus allowing their compilation for IOVA VA mode.

Signed-off-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>

---
v1: http://patches.dpdk.org/project/dpdk/patch/20230412125320.8585-1-viacheslavo@nvidia.com/
v2: fixed typos in commit message, reworded a little bit
---
 drivers/common/mlx5/meson.build   | 2 ++
 drivers/compress/mlx5/meson.build | 2 ++
 drivers/crypto/mlx5/meson.build   | 2 ++
 drivers/net/mlx5/meson.build      | 2 ++
 drivers/regex/mlx5/meson.build    | 2 ++
 5 files changed, 10 insertions(+)

diff --git a/drivers/common/mlx5/meson.build b/drivers/common/mlx5/meson.build
index 9dc809f192..26c6d80fe1 100644
--- a/drivers/common/mlx5/meson.build
+++ b/drivers/common/mlx5/meson.build
@@ -42,6 +42,8 @@ else
     cflags += [ '-UPEDANTIC' ]
 endif
 
+require_iova_in_mbuf = false
+
 mlx5_config = configuration_data()
 subdir(exec_env)
 configure_file(output: 'mlx5_autoconf.h', configuration: mlx5_config)
diff --git a/drivers/compress/mlx5/meson.build b/drivers/compress/mlx5/meson.build
index c906f2d7a2..26a0e0cd09 100644
--- a/drivers/compress/mlx5/meson.build
+++ b/drivers/compress/mlx5/meson.build
@@ -28,3 +28,5 @@ foreach option:cflags_options
         cflags += option
     endif
 endforeach
+
+require_iova_in_mbuf = false
diff --git a/drivers/crypto/mlx5/meson.build b/drivers/crypto/mlx5/meson.build
index a830a4c7b9..a2691ec0f0 100644
--- a/drivers/crypto/mlx5/meson.build
+++ b/drivers/crypto/mlx5/meson.build
@@ -30,3 +30,5 @@ foreach option:cflags_options
         cflags += option
     endif
 endforeach
+
+require_iova_in_mbuf = false
diff --git a/drivers/net/mlx5/meson.build b/drivers/net/mlx5/meson.build
index dba911693e..fde7241f7e 100644
--- a/drivers/net/mlx5/meson.build
+++ b/drivers/net/mlx5/meson.build
@@ -77,6 +77,8 @@ else
     cflags += [ '-UPEDANTIC' ]
 endif
 
+require_iova_in_mbuf = false
+
 testpmd_sources += files('mlx5_testpmd.c')
 
 subdir(exec_env)
diff --git a/drivers/regex/mlx5/meson.build b/drivers/regex/mlx5/meson.build
index 87404101b9..0f4ca46f44 100644
--- a/drivers/regex/mlx5/meson.build
+++ b/drivers/regex/mlx5/meson.build
@@ -32,3 +32,5 @@ foreach option:cflags_options
         cflags += option
     endif
 endforeach
+
+require_iova_in_mbuf = false
-- 
2.18.1