1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c
new file mode 100644
index 000000000000..027eba4e13f8
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_sriov.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018, Intel Corporation. */
+
+#include "ice_common.h"
+#include "ice_adminq_cmd.h"
+#include "ice_sriov.h"
+
+/**
+ * ice_aq_send_msg_to_vf
+ * @hw: pointer to the hardware structure
+ * @vfid: VF ID to send msg
+ * @v_opcode: opcodes for VF-PF communication
+ * @v_retval: return error code
+ * @msg: pointer to the msg buffer
+ * @msglen: msg length
+ * @cd: pointer to command details
+ *
+ * Send message to VF driver (0x0802) using mailbox
+ * queue and asynchronously sending message via
+ * ice_sq_send_cmd() function
+ */
+enum ice_status
+ice_aq_send_msg_to_vf(struct ice_hw *hw, u16 vfid, u32 v_opcode, u32 v_retval,
+		      u8 *msg, u16 msglen, struct ice_sq_cd *cd)
+{
+	struct ice_aqc_pf_vf_msg *cmd;
+	struct ice_aq_desc desc;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_mbx_opc_send_msg_to_vf);
+
+	cmd = &desc.params.virt;
+	cmd->id = cpu_to_le32(vfid);
+
+	desc.cookie_high = cpu_to_le32(v_opcode);
+	desc.cookie_low = cpu_to_le32(v_retval);
+
+	if (msglen)
+		desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+	return ice_sq_send_cmd(hw, &hw->mailboxq, &desc, msg, msglen, cd);
+}
+
+/**
+ * ice_conv_link_speed_to_virtchnl
+ * @adv_link_support: determines the format of the returned link speed
+ * @link_speed: variable containing the link_speed to be converted
+ *
+ * Convert link speed supported by HW to link speed supported by virtchnl.
+ * If adv_link_support is true, then return link speed in Mbps.  Else return
+ * link speed as a VIRTCHNL_LINK_SPEED_* casted to a u32. Note that the caller
+ * needs to cast back to an enum virtchnl_link_speed in the case where
+ * adv_link_support is false, but when adv_link_support is true the caller can
+ * expect the speed in Mbps.
+ */
+u32 ice_conv_link_speed_to_virtchnl(bool adv_link_support, u16 link_speed)
+{
+	u32 speed;
+
+	if (adv_link_support)
+		switch (link_speed) {
+		case ICE_AQ_LINK_SPEED_10MB:
+			speed = ICE_LINK_SPEED_10MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_100MB:
+			speed = ICE_LINK_SPEED_100MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_1000MB:
+			speed = ICE_LINK_SPEED_1000MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_2500MB:
+			speed = ICE_LINK_SPEED_2500MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_5GB:
+			speed = ICE_LINK_SPEED_5000MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_10GB:
+			speed = ICE_LINK_SPEED_10000MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_20GB:
+			speed = ICE_LINK_SPEED_20000MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_25GB:
+			speed = ICE_LINK_SPEED_25000MBPS;
+			break;
+		case ICE_AQ_LINK_SPEED_40GB:
+			speed = ICE_LINK_SPEED_40000MBPS;
+			break;
+		default:
+			speed = ICE_LINK_SPEED_UNKNOWN;
+			break;
+		}
+	else
+		/* Virtchnl speeds are not defined for every speed supported in
+		 * the hardware. To maintain compatibility with older AVF
+		 * drivers, while reporting the speed the new speed values are
+		 * resolved to the closest known virtchnl speeds
+		 */
+		switch (link_speed) {
+		case ICE_AQ_LINK_SPEED_10MB:
+		case ICE_AQ_LINK_SPEED_100MB:
+			speed = (u32)VIRTCHNL_LINK_SPEED_100MB;
+			break;
+		case ICE_AQ_LINK_SPEED_1000MB:
+		case ICE_AQ_LINK_SPEED_2500MB:
+		case ICE_AQ_LINK_SPEED_5GB:
+			speed = (u32)VIRTCHNL_LINK_SPEED_1GB;
+			break;
+		case ICE_AQ_LINK_SPEED_10GB:
+			speed = (u32)VIRTCHNL_LINK_SPEED_10GB;
+			break;
+		case ICE_AQ_LINK_SPEED_20GB:
+			speed = (u32)VIRTCHNL_LINK_SPEED_20GB;
+			break;
+		case ICE_AQ_LINK_SPEED_25GB:
+			speed = (u32)VIRTCHNL_LINK_SPEED_25GB;
+			break;
+		case ICE_AQ_LINK_SPEED_40GB:
+			/* fall through */
+			speed = (u32)VIRTCHNL_LINK_SPEED_40GB;
+			break;
+		default:
+			speed = (u32)VIRTCHNL_LINK_SPEED_UNKNOWN;
+			break;
+		}
+
+	return speed;
+}