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  */
22 enum ice_status
23 ice_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  */
55 u32 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 }
135