virtchnl: Added support to exchange additional speed values

Introduced a new virtchnl capability flag and a struct to support exchange
of additional supported speeds.

Signed-off-by: Yashaswini Raghuram Prathivadi Bhayankaram <yashaswini.raghuram.prathivadi.bhayankaram@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h
index b41f7bc958ef..2c9756bd9c4c 100644
--- a/include/linux/avf/virtchnl.h
+++ b/include/linux/avf/virtchnl.h
@@ -252,6 +252,8 @@ VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_vsi_resource);
 #define VIRTCHNL_VF_OFFLOAD_RX_ENCAP_CSUM       0X00400000
 #define VIRTCHNL_VF_OFFLOAD_ADQ                 0X00800000
 
+/* Define below the capability flags that are not offloads */
+#define VIRTCHNL_VF_CAP_ADV_LINK_SPEED          0x00000080
 #define VF_BASE_MODE_OFFLOADS (VIRTCHNL_VF_OFFLOAD_L2 | \
                                VIRTCHNL_VF_OFFLOAD_VLAN | \
                                VIRTCHNL_VF_OFFLOAD_RSS_PF)
@@ -596,10 +598,23 @@ 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;