[dpdk-dev] [PATCH v1 7/8] common/mlx5: exclude OS dependency in devx commands

[Ophir Munk]

Shared function mlx5_devx_cmd_mkey_create() reads the OS pagesize by
calling a Linux API: 'sysconf(_SC_PAGESIZE)'. Wrap this call with a
shared API 'mlx5_os_get_page_size()' which contains the specific OS
implementation.

Signed-off-by: Ophir Munk <ophirmu at mellanox.com>
---
 drivers/common/mlx5/linux/mlx5_common_os.c | 12 ++++++++++++
 drivers/common/mlx5/mlx5_common.h          |  1 +
 drivers/common/mlx5/mlx5_devx_cmds.c       |  2 +-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/common/mlx5/linux/mlx5_common_os.c b/drivers/common/mlx5/linux/mlx5_common_os.c
index 4e04d70..1b71347 100644
--- a/drivers/common/mlx5/linux/mlx5_common_os.c
+++ b/drivers/common/mlx5/linux/mlx5_common_os.c
@@ -125,6 +125,18 @@ mlx5_translate_port_name(const char *port_name_in,
 	port_info_out->name_type = MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN;
 }
 
+/**
+ * Get OS page size
+ *
+ * @return
+ *   OS pagesize
+ */
+size_t
+mlx5_os_get_page_size(void)
+{
+	return sysconf(_SC_PAGESIZE);
+}
+
 #ifdef MLX5_GLUE
 
 /**
diff --git a/drivers/common/mlx5/mlx5_common.h b/drivers/common/mlx5/mlx5_common.h
index 8e679c6..77f10e6 100644
--- a/drivers/common/mlx5/mlx5_common.h
+++ b/drivers/common/mlx5/mlx5_common.h
@@ -213,6 +213,7 @@ __rte_internal
 void mlx5_translate_port_name(const char *port_name_in,
 			      struct mlx5_switch_info *port_info_out);
 void mlx5_glue_constructor(void);
+size_t mlx5_os_get_page_size(void);
 
 extern uint8_t haswell_broadwell_cpu;
 
diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index 091a825..ccba1c1 100644
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -158,7 +158,7 @@ mlx5_devx_cmd_mkey_create(void *ctx,
 		return NULL;
 	}
 	memset(in, 0, in_size_dw * 4);
-	pgsize = sysconf(_SC_PAGESIZE);
+	pgsize = mlx5_os_get_page_size();
 	MLX5_SET(create_mkey_in, in, opcode, MLX5_CMD_OP_CREATE_MKEY);
 	mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
 	if (klm_num > 0) {
-- 
2.8.4