ice: Add support to detect SR-IOV capability and mailbox queues

Mailbox queue is a type of control queue that's used for communication
between PF and VF. This patch adds code to initialize, configure and
use mailbox queues.

This patch also adds support to detect and parse SR-IOV capabilities
returned by the hardware.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 68fbbb92d504..0fe054e4bfb8 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -1406,6 +1406,28 @@ ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count,
                 u16 cap = le16_to_cpu(cap_resp->cap);
 
                 switch (cap) {
+                case ICE_AQC_CAPS_SRIOV:
+                        caps->sr_iov_1_1 = (number == 1);
+                        ice_debug(hw, ICE_DBG_INIT,
+                                  "HW caps: SR-IOV = %d\n", caps->sr_iov_1_1);
+                        break;
+                case ICE_AQC_CAPS_VF:
+                        if (dev_p) {
+                                dev_p->num_vfs_exposed = number;
+                                ice_debug(hw, ICE_DBG_INIT,
+                                          "HW caps: VFs exposed = %d\n",
+                                          dev_p->num_vfs_exposed);
+                        } else if (func_p) {
+                                func_p->num_allocd_vfs = number;
+                                func_p->vf_base_id = logical_id;
+                                ice_debug(hw, ICE_DBG_INIT,
+                                          "HW caps: VFs allocated = %d\n",
+                                          func_p->num_allocd_vfs);
+                                ice_debug(hw, ICE_DBG_INIT,
+                                          "HW caps: VF base_id = %d\n",
+                                          func_p->vf_base_id);
+                        }
+                        break;
                 case ICE_AQC_CAPS_VSI:
                         if (dev_p) {
                                 dev_p->num_vsi_allocd_to_host = number;