> -----Original Message-----
> From: dev <dev-boun...@dpdk.org> On Behalf Of Guinan Sun
> Sent: Thursday, July 30, 2020 6:25 PM
> To: Xing, Beilei <beilei.x...@intel.com>; Guo, Jia <jia....@intel.com>;
> dev@dpdk.org
> Cc: Sun, GuinanX <guinanx....@intel.com>; sta...@dpdk.org
> Subject: [dpdk-dev] [PATCH v2] net/i40e: fix link status
>
> If the PF driver supports the new speed reporting capabilities then use
> link_event_adv instead of link_event to get the speed.
>
> Fixes: 2a73125b7041 ("i40evf: fix link info update")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Guinan Sun <guinanx....@intel.com>
> ---
> v2:
> * Modify commit log.
> * Add code comments.
> * Delete useless codes.
> ---
> drivers/net/i40e/base/virtchnl.h | 16 +++++++++++-
> drivers/net/i40e/i40e_ethdev_vf.c | 42 +++++++++++++++++++++++++++++--
> 2 files changed, 55 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/i40e/base/virtchnl.h
> b/drivers/net/i40e/base/virtchnl.h
> index 4f498ca45..9c64fd469 100644
> --- a/drivers/net/i40e/base/virtchnl.h
> +++ b/drivers/net/i40e/base/virtchnl.h
> @@ -240,7 +240,8 @@ VIRTCHNL_CHECK_STRUCT_LEN(16,
> virtchnl_vsi_resource);
> #define VIRTCHNL_VF_OFFLOAD_ENCAP 0X00100000
> #define VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM 0X00200000
> #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM 0X00400000
> -
> +/* Define below the capability flags that are not offloads */
> +#define VIRTCHNL_VF_CAP_ADV_LINK_SPEED 0x00000080
You defined the new capability VIRTCHNL_VF_CAP_ADV_LINK_SPEED in the patch,
but didn't request the capability for i40evf?
> #define VF_BASE_MODE_OFFLOADS (VIRTCHNL_VF_OFFLOAD_L2 | \
> VIRTCHNL_VF_OFFLOAD_VLAN | \
> VIRTCHNL_VF_OFFLOAD_RSS_PF)
> @@ -536,10 +537,23 @@ enum virtchnl_event_codes { struct
> virtchnl_pf_event {
> enum virtchnl_event_codes event;
> union {
> + /* 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 and link information. The ability to
> understand
> + * new speeds is indicated by setting the capability flag
> + * VIRTCHNL_VF_CAP_ADV_LINK_SPEED in vf_cap_flags
> parameter
> + * in virtchnl_vf_resource struct and can be used to determine
> + * which link event struct to use below.
> + */
> struct {
> enum virtchnl_link_speed link_speed;
> bool link_status;
> } link_event;
> + struct {
> + /* link_speed provided in Mbps */
> + u32 link_speed;
> + u8 link_status;
> + } link_event_adv;
> } event_data;
>
> int severity;
> diff --git a/drivers/net/i40e/i40e_ethdev_vf.c
> b/drivers/net/i40e/i40e_ethdev_vf.c
> index 69cab8e73..f8cf45fbe 100644
> --- a/drivers/net/i40e/i40e_ethdev_vf.c
> +++ b/drivers/net/i40e/i40e_ethdev_vf.c
> @@ -1386,8 +1386,46 @@ i40evf_handle_pf_event(struct rte_eth_dev *dev,
> uint8_t *msg,
> break;
> 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.link_speed;
> +
> + if (vf->vf_res->vf_cap_flags &
> VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
> + vf->link_up =
> + pf_msg-
> >event_data.link_event_adv.link_status;
> +
> + switch (pf_msg-
> >event_data.link_event_adv.link_speed) {
> + case ETH_SPEED_NUM_100M:
> + vf->link_speed = I40E_LINK_SPEED_100MB;
> + break;
> + case ETH_SPEED_NUM_1G:
> + vf->link_speed = I40E_LINK_SPEED_1GB;
> + break;
> + case ETH_SPEED_NUM_2_5G:
> + vf->link_speed = I40E_LINK_SPEED_2_5GB;
> + break;
> + case ETH_SPEED_NUM_5G:
> + vf->link_speed = I40E_LINK_SPEED_5GB;
> + break;
> + case ETH_SPEED_NUM_10G:
> + vf->link_speed = I40E_LINK_SPEED_10GB;
> + break;
> + case ETH_SPEED_NUM_20G:
> + vf->link_speed = I40E_LINK_SPEED_20GB;
> + break;
> + case ETH_SPEED_NUM_25G:
> + vf->link_speed = I40E_LINK_SPEED_25GB;
> + break;
> + case ETH_SPEED_NUM_40G:
> + vf->link_speed = I40E_LINK_SPEED_40GB;
> + break;
> + default:
> + vf->link_speed =
> I40E_LINK_SPEED_UNKNOWN;
> + break;
> + }
> + } else {
> + vf->link_up =
> + pf_msg->event_data.link_event.link_status;
> + vf->link_speed =
> + pf_msg->event_data.link_event.link_speed;
> + }
> break;
> case VIRTCHNL_EVENT_PF_DRIVER_CLOSE:
> PMD_DRV_LOG(DEBUG,
> "VIRTCHNL_EVENT_PF_DRIVER_CLOSE event");
> --
> 2.17.1
