1// SPDX-License-Identifier: GPL-2.0
  2/* Copyright (c) 2018, Intel Corporation. */
  3
  4#include "ice_common.h"
  5#include "ice_adminq_cmd.h"
  6#include "ice_sriov.h"
  7
  8/**
  9 * ice_aq_send_msg_to_vf
 10 * @hw: pointer to the hardware structure
 11 * @vfid: VF ID to send msg
 12 * @v_opcode: opcodes for VF-PF communication
 13 * @v_retval: return error code
 14 * @msg: pointer to the msg buffer
 15 * @msglen: msg length
 16 * @cd: pointer to command details
 17 *
 18 * Send message to VF driver (0x0802) using mailbox
 19 * queue and asynchronously sending message via
 20 * ice_sq_send_cmd() function
 21 */
 22enum ice_status
 23ice_aq_send_msg_to_vf(struct ice_hw *hw, u16 vfid, u32 v_opcode, u32 v_retval,
 24		      u8 *msg, u16 msglen, struct ice_sq_cd *cd)
 25{
 26	struct ice_aqc_pf_vf_msg *cmd;
 27	struct ice_aq_desc desc;
 28
 29	ice_fill_dflt_direct_cmd_desc(&desc, ice_mbx_opc_send_msg_to_vf);
 30
 31	cmd = &desc.params.virt;
 32	cmd->id = cpu_to_le32(vfid);
 33
 34	desc.cookie_high = cpu_to_le32(v_opcode);
 35	desc.cookie_low = cpu_to_le32(v_retval);
 36
 37	if (msglen)
 38		desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
 39
 40	return ice_sq_send_cmd(hw, &hw->mailboxq, &desc, msg, msglen, cd);
 41}
 42
 43/**
 44 * ice_conv_link_speed_to_virtchnl
 45 * @adv_link_support: determines the format of the returned link speed
 46 * @link_speed: variable containing the link_speed to be converted
 47 *
 48 * Convert link speed supported by HW to link speed supported by virtchnl.
 49 * If adv_link_support is true, then return link speed in Mbps. Else return
 50 * link speed as a VIRTCHNL_LINK_SPEED_* casted to a u32. Note that the caller
 51 * needs to cast back to an enum virtchnl_link_speed in the case where
 52 * adv_link_support is false, but when adv_link_support is true the caller can
 53 * expect the speed in Mbps.
 54 */
 55u32 ice_conv_link_speed_to_virtchnl(bool adv_link_support, u16 link_speed)
 56{
 57	u32 speed;
 58
 59	if (adv_link_support)
 60		switch (link_speed) {
 61		case ICE_AQ_LINK_SPEED_10MB:
 62			speed = ICE_LINK_SPEED_10MBPS;
 63			break;
 64		case ICE_AQ_LINK_SPEED_100MB:
 65			speed = ICE_LINK_SPEED_100MBPS;
 66			break;
 67		case ICE_AQ_LINK_SPEED_1000MB:
 68			speed = ICE_LINK_SPEED_1000MBPS;
 69			break;
 70		case ICE_AQ_LINK_SPEED_2500MB:
 71			speed = ICE_LINK_SPEED_2500MBPS;
 72			break;
 73		case ICE_AQ_LINK_SPEED_5GB:
 74			speed = ICE_LINK_SPEED_5000MBPS;
 75			break;
 76		case ICE_AQ_LINK_SPEED_10GB:
 77			speed = ICE_LINK_SPEED_10000MBPS;
 78			break;
 79		case ICE_AQ_LINK_SPEED_20GB:
 80			speed = ICE_LINK_SPEED_20000MBPS;
 81			break;
 82		case ICE_AQ_LINK_SPEED_25GB:
 83			speed = ICE_LINK_SPEED_25000MBPS;
 84			break;
 85		case ICE_AQ_LINK_SPEED_40GB:
 86			speed = ICE_LINK_SPEED_40000MBPS;
 87			break;
 88		case ICE_AQ_LINK_SPEED_50GB:
 89			speed = ICE_LINK_SPEED_50000MBPS;
 90			break;
 91		case ICE_AQ_LINK_SPEED_100GB:
 92			speed = ICE_LINK_SPEED_100000MBPS;
 93			break;
 94		default:
 95			speed = ICE_LINK_SPEED_UNKNOWN;
 96			break;
 97		}
 98	else
 99		/* Virtchnl speeds are not defined for every speed supported in
100		 * the hardware. To maintain compatibility with older AVF
101		 * drivers, while reporting the speed the new speed values are
102		 * resolved to the closest known virtchnl speeds
103		 */
104		switch (link_speed) {
105		case ICE_AQ_LINK_SPEED_10MB:
106		case ICE_AQ_LINK_SPEED_100MB:
107			speed = (u32)VIRTCHNL_LINK_SPEED_100MB;
108			break;
109		case ICE_AQ_LINK_SPEED_1000MB:
110		case ICE_AQ_LINK_SPEED_2500MB:
111		case ICE_AQ_LINK_SPEED_5GB:
112			speed = (u32)VIRTCHNL_LINK_SPEED_1GB;
113			break;
114		case ICE_AQ_LINK_SPEED_10GB:
115			speed = (u32)VIRTCHNL_LINK_SPEED_10GB;
116			break;
117		case ICE_AQ_LINK_SPEED_20GB:
118			speed = (u32)VIRTCHNL_LINK_SPEED_20GB;
119			break;
120		case ICE_AQ_LINK_SPEED_25GB:
121			speed = (u32)VIRTCHNL_LINK_SPEED_25GB;
122			break;
123		case ICE_AQ_LINK_SPEED_40GB:
124		case ICE_AQ_LINK_SPEED_50GB:
125		case ICE_AQ_LINK_SPEED_100GB:
126			speed = (u32)VIRTCHNL_LINK_SPEED_40GB;
127			break;
128		default:
129			speed = (u32)VIRTCHNL_LINK_SPEED_UNKNOWN;
130			break;
131		}
132
133	return speed;
134}