[dpdk-dev] [PATCH v2 37/41] net/mlx5: add routine to extract pdn

[Srikanth Kaka]

add routine to extract pdn

Signed-off-by: Srikanth Kaka <srikant...@oneconvergence.com>
Signed-off-by: Vag Singh <vag.si...@oneconvergence.com>
Signed-off-by: Anand Thulasiram <av...@juniper.net>
---
 drivers/net/mlx5/freebsd/mlx5_os.c | 35 ++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/drivers/net/mlx5/freebsd/mlx5_os.c 
b/drivers/net/mlx5/freebsd/mlx5_os.c
index c05bf021d1..9992cb1d6a 100644
--- a/drivers/net/mlx5/freebsd/mlx5_os.c
+++ b/drivers/net/mlx5/freebsd/mlx5_os.c
@@ -2173,6 +2173,41 @@ mlx5_restore_doorbell_mapping_env(int value)
                setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
 }
 
+/**
+ * Extract pdn of PD object using DV API.
+ *
+ * @param[in] pd
+ *   Pointer to the verbs PD object.
+ * @param[out] pdn
+ *   Pointer to the PD object number variable.
+ *
+ * @return
+ *   0 on success, error value otherwise.
+ */
+int
+mlx5_os_get_pdn(void *pd, uint32_t *pdn)
+{
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+       struct mlx5dv_obj obj;
+       struct mlx5dv_pd pd_info;
+       int ret = 0;
+
+       obj.pd.in = pd;
+       obj.pd.out = &pd_info;
+       ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
+       if (ret) {
+               DRV_LOG(DEBUG, "Fail to get PD object info");
+               return ret;
+       }
+       *pdn = pd_info.pdn;
+       return 0;
+#else
+       (void)pd;
+       (void)pdn;
+       return -ENOTSUP;
+#endif /* HAVE_IBV_FLOW_DV_SUPPORT */
+}
+
 /**
  * Function API to open IB device.
  *
-- 
2.30.2