[dpdk-dev] [PATCH v1 42/72] common/mlx5/windows: add DevX UAR getters

[Ophir Munk]

The following getters are added: mlx5_os_get_devx_uar_mmap_offset,
mlx5_os_get_devx_uar_base_addr, mlx5_os_get_devx_uar_reg_addr,
mlx5_os_get_devx_uar_page_id.  This commit is the Windows equivalent of
the Linux implementation in (1).

(1)
commit 8638e19a10aa ("net/mlx5: remove more DV dependencies")

Signed-off-by: Ophir Munk <ophirmu at nvidia.com>
---
 drivers/common/mlx5/windows/mlx5_common_os.h | 74 ++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/drivers/common/mlx5/windows/mlx5_common_os.h b/drivers/common/mlx5/windows/mlx5_common_os.h
index ba16641..9ff6bef 100644
--- a/drivers/common/mlx5/windows/mlx5_common_os.h
+++ b/drivers/common/mlx5/windows/mlx5_common_os.h
@@ -15,6 +15,8 @@
 #include "mlx5_common_mr.h"
 #include "mlx5_win_ext.h"
 
+#define MLX5_BF_OFFSET 0x800
+
 /**
  * This API allocates aligned or non-aligned memory.  The free can be on either
  * aligned or nonaligned memory.  To be protected - even though there may be no
@@ -144,6 +146,78 @@ mlx5_os_get_umem_id(void *umem)
 	return ((struct mlx5_devx_umem *)umem)->umem_id;
 }
 
+/**
+ * Get mmap offset. Given a pointer to an DevX UAR object of type
+ * 'struct mlx5dv_devx_uar *' - return its mmap offset.
+ *
+ * @param[in] uar
+ *    Pointer to UAR object.
+ *
+ * @return
+ *    The mmap offset if uar is valid, 0 otherwise.
+ */
+static inline off_t
+mlx5_os_get_devx_uar_mmap_offset(void *uar)
+{
+	if (!uar)
+		return 0;
+	return 0;
+}
+
+/**
+ * Get base addr pointer. Given a pointer to an UAR object of type
+ * 'struct mlx5dv_devx_uar *' - return its base address.
+ *
+ * @param[in] uar
+ *    Pointer to an UAR object.
+ *
+ * @return
+ *    The base address if UAR is valid, NULL otherwise.
+ */
+static inline void *
+mlx5_os_get_devx_uar_base_addr(void *uar)
+{
+	if (!uar)
+		return NULL;
+	return ((devx_uar_handle *)uar)->uar_page;
+}
+
+/**
+ * Get reg addr pointer. Given a pointer to an UAR object of type
+ * 'struct mlx5dv_devx_uar *' - return its reg address.
+ *
+ * @param[in] uar
+ *    Pointer to an UAR object.
+ *
+ * @return
+ *    The reg address if UAR is valid, NULL otherwise.
+ */
+static inline void *
+mlx5_os_get_devx_uar_reg_addr(void *uar)
+{
+	if (!uar)
+		return NULL;
+	return ((char *)((devx_uar_handle *)uar)->uar_page) + MLX5_BF_OFFSET;
+}
+
+/**
+ * Get page id. Given a pointer to an UAR object of type
+ * 'struct mlx5dv_devx_uar *' - return its page id.
+ *
+ * @param[in] uar
+ *    Pointer to an UAR object.
+ *
+ * @return
+ *    The page id if UAR is valid, 0 otherwise.
+ */
+static inline uint32_t
+mlx5_os_get_devx_uar_page_id(void *uar)
+{
+	if (!uar)
+		return 0;
+	return ((devx_uar_handle *)uar)->uar_index;
+}
+
 void *mlx5_os_alloc_pd(void *ctx);
 int mlx5_os_dealloc_pd(void *pd);
 void *mlx5_os_umem_reg(void *ctx, void *addr, size_t size, uint32_t access);
-- 
2.8.4