[dpdk-dev] [PATCH] net/iavf: fix link speed

[alvinx . zhang]

From: Alvin Zhang <alvinx.zh...@intel.com>

If the PF driver does not support the new speed reporting capabilities then
use link_event else use link_event_adv to get the speed.

Fixes: 48de41ca11f0 (net/iavf: enable link status update)
Cc: jingjing...@intel.com

Signed-off-by: Alvin Zhang <alvinx.zh...@intel.com>
---
 drivers/net/iavf/iavf_vchnl.c | 47 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c
index 2a0cdd9..104a769 100644
--- a/drivers/net/iavf/iavf_vchnl.c
+++ b/drivers/net/iavf/iavf_vchnl.c
@@ -130,6 +130,44 @@
        return err;
 }
 
+static uint32_t
+iavf_convert_link_speed(uint32_t virt_link_speed)
+{
+       uint32_t speed;
+
+       switch (virt_link_speed) {
+       case VIRTCHNL_LINK_SPEED_100MB:
+               speed = 100;
+               break;
+       case VIRTCHNL_LINK_SPEED_1GB:
+               speed = 1000;
+               break;
+       case VIRTCHNL_LINK_SPEED_10GB:
+               speed = 10000;
+               break;
+       case VIRTCHNL_LINK_SPEED_40GB:
+               speed = 40000;
+               break;
+       case VIRTCHNL_LINK_SPEED_20GB:
+               speed = 20000;
+               break;
+       case VIRTCHNL_LINK_SPEED_25GB:
+               speed = 25000;
+               break;
+       case VIRTCHNL_LINK_SPEED_2_5GB:
+               speed = 2500;
+               break;
+       case VIRTCHNL_LINK_SPEED_5GB:
+               speed = 5000;
+               break;
+       default:
+               speed = 0;
+               break;
+       }
+
+       return speed;
+}
+
 static void
 iavf_handle_pf_event_msg(struct rte_eth_dev *dev, uint8_t *msg,
                        uint16_t msglen)
@@ -151,7 +189,14 @@
        case VIRTCHNL_EVENT_LINK_CHANGE:
                PMD_DRV_LOG(DEBUG, "VIRTCHNL_EVENT_LINK_CHANGE event");
                vf->link_up = pf_msg->event_data.link_event.link_status;
-               vf->link_speed = pf_msg->event_data.link_event_adv.link_speed;
+               if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
+                       vf->link_speed =
+                               pf_msg->event_data.link_event_adv.link_speed;
+               } else {
+                       enum virtchnl_link_speed speed;
+                       speed = pf_msg->event_data.link_event.link_speed;
+                       vf->link_speed = iavf_convert_link_speed(speed);
+               }
                iavf_dev_link_update(dev, 0);
                _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC,
                                              NULL);
-- 
1.8.3.1