[dpdk-dev] [PATCH v2 1/2] i40e: generate MAC address for VF

[Helin Zhang <helin.zhang@intel.com>]

It generates a MAC address for each VFs during PF host
initialization.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
---
 doc/guides/rel_notes/release_16_04.rst | 5 +++++
 drivers/net/i40e/i40e_ethdev.h         | 1 +
 drivers/net/i40e/i40e_pf.c             | 3 +++
 3 files changed, 9 insertions(+)

v2:
 - It just generates a MAC address for each VFs during PF host
   initialization, and removes configuring from users.
 - Reworded the release notes.

diff --git a/doc/guides/rel_notes/release_16_04.rst b/doc/guides/rel_notes/release_16_04.rst
index 73494f9..1b9061d 100644
--- a/doc/guides/rel_notes/release_16_04.rst
+++ b/doc/guides/rel_notes/release_16_04.rst
@@ -137,6 +137,11 @@ Drivers
 
 * **vmxnet3: add TSO support.**
 
+* **i40e: Generates MAC address for each VFs.**
+
+  It generates a MAC address for each VFs during PF host initialization,
+  and keeps the VF MAC address the same among different VF launch.
+
 
 Libraries
 ~~~~~~~~~
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index db6173a..9109cd9 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -312,6 +312,7 @@ struct i40e_pf_vf {
 	uint16_t vf_idx; /* VF index in pf->vfs */
 	uint16_t lan_nb_qps; /* Actual queues allocated */
 	uint16_t reset_cnt; /* Total vf reset times */
+	struct ether_addr mac_addr;  /* Default MAC address */
 };
 
 /*
diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c
index cbf4e5b..5790377 100644
--- a/drivers/net/i40e/i40e_pf.c
+++ b/drivers/net/i40e/i40e_pf.c
@@ -315,6 +315,8 @@ i40e_pf_host_process_cmd_get_vf_resource(struct i40e_pf_vf *vf)
 	/* As assume Vf only has single VSI now, always return 0 */
 	vf_res->vsi_res[0].vsi_id = 0;
 	vf_res->vsi_res[0].num_queue_pairs = vf->vsi->nb_qps;
+	ether_addr_copy(&vf->mac_addr,
+		(struct ether_addr *)vf_res->vsi_res[0].default_mac_addr);
 
 send_msg:
 	i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
@@ -1045,6 +1047,7 @@ i40e_pf_host_init(struct rte_eth_dev *dev)
 		ret = i40e_pf_host_vf_reset(&pf->vfs[i], 0);
 		if (ret != I40E_SUCCESS)
 			goto fail;
+		eth_random_addr(pf->vfs[i].mac_addr.addr_bytes);
 	}
 
 	/* restore irq0 */
-- 
2.5.0