common/mlx5: add UMEM reg/dereg functions on Windows

[dpdk.git] / drivers / common / mlx5 / windows / mlx5_common_os.c

diff --git a/drivers/common/mlx5/windows/mlx5_common_os.c b/drivers/common/mlx5/windows/mlx5_common_os.c
index 9ca850e..50617e4 100644 (file)
--- a/drivers/common/mlx5/windows/mlx5_common_os.c
+++ b/drivers/common/mlx5/windows/mlx5_common_os.c
@@ -69,3 +69,63 @@ mlx5_os_dealloc_pd(void *pd)
        mlx5_free(pd);
        return 0;
 }
+
+/**
+ * Register umem.
+ *
+ * @param[in] ctx
+ *   Pointer to context.
+ * @param[in] addr
+ *   Pointer to memory start address.
+ * @param[in] size
+ *   Size of the memory to register.
+ * @param[out] access
+ *   UMEM access type
+ *
+ * @return
+ *   umem on successful registration, NULL and errno otherwise
+ */
+void *
+mlx5_os_umem_reg(void *ctx, void *addr, size_t size, uint32_t access)
+{
+       struct mlx5_devx_umem *umem;
+
+       umem = mlx5_malloc(MLX5_MEM_ZERO,
+               (sizeof(*umem)), 0, SOCKET_ID_ANY);
+       if (!umem) {
+               errno = ENOMEM;
+               return NULL;
+       }
+       umem->umem_hdl = mlx5_glue->devx_umem_reg(ctx, addr, size, access,
+               &umem->umem_id);
+       if (!umem->umem_hdl) {
+               mlx5_free(umem);
+               return NULL;
+       }
+       umem->addr = addr;
+       return umem;
+}
+
+/**
+ * Deregister umem.
+ *
+ * @param[in] pumem
+ *   Pointer to umem.
+ *
+ * @return
+ *   0 on successful release, negative number otherwise
+ */
+int
+mlx5_os_umem_dereg(void *pumem)
+{
+       struct mlx5_devx_umem *umem;
+       int err = 0;
+
+       if (!pumem)
+               return err;
+       umem = pumem;
+       if (umem->umem_hdl)
+               err = mlx5_glue->devx_umem_dereg(umem->umem_hdl);
+       mlx5_free(umem);
+       return err;
+}