Branch data Line data Source code
1 : : /* SPDX-License-Identifier: BSD-3-Clause
2 : : * Copyright (c) 2024 NVIDIA Corporation & Affiliates
3 : : */
4 : :
5 : : #include <rte_bitops.h>
6 : :
7 : : #include "rte_ethdev.h"
8 : : #include "ethdev_linux_ethtool.h"
9 : :
10 : : /* Link modes sorted with index as defined in ethtool.
11 : : * Values are speed in Mbps with LSB indicating duplex.
12 : : *
13 : : * The ethtool bits definition should not change as it is a kernel API.
14 : : * Using raw numbers directly avoids checking API availability
15 : : * and allows to compile with new bits included even on an old kernel.
16 : : *
17 : : * The array below is built from bit definitions with this shell command:
18 : : * sed -rn 's;.*(ETHTOOL_LINK_MODE_)([0-9]+)([0-9a-zA-Z_]*).*= *([0-9]*).*;'\
19 : : * '[\4] = \2, /\* \1\2\3 *\/;p' /usr/include/linux/ethtool.h |
20 : : * awk '/_Half_/{$3=$3+1","}1'
21 : : */
22 : : static const uint32_t link_modes[] = {
23 : : [0] = 11, /* ETHTOOL_LINK_MODE_10baseT_Half_BIT */
24 : : [1] = 10, /* ETHTOOL_LINK_MODE_10baseT_Full_BIT */
25 : : [2] = 101, /* ETHTOOL_LINK_MODE_100baseT_Half_BIT */
26 : : [3] = 100, /* ETHTOOL_LINK_MODE_100baseT_Full_BIT */
27 : : [4] = 1001, /* ETHTOOL_LINK_MODE_1000baseT_Half_BIT */
28 : : [5] = 1000, /* ETHTOOL_LINK_MODE_1000baseT_Full_BIT */
29 : : [12] = 10000, /* ETHTOOL_LINK_MODE_10000baseT_Full_BIT */
30 : : [15] = 2500, /* ETHTOOL_LINK_MODE_2500baseX_Full_BIT */
31 : : [17] = 1000, /* ETHTOOL_LINK_MODE_1000baseKX_Full_BIT */
32 : : [18] = 10000, /* ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT */
33 : : [19] = 10000, /* ETHTOOL_LINK_MODE_10000baseKR_Full_BIT */
34 : : [20] = 10000, /* ETHTOOL_LINK_MODE_10000baseR_FEC_BIT */
35 : : [21] = 20000, /* ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT */
36 : : [22] = 20000, /* ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT */
37 : : [23] = 40000, /* ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT */
38 : : [24] = 40000, /* ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT */
39 : : [25] = 40000, /* ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT */
40 : : [26] = 40000, /* ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT */
41 : : [27] = 56000, /* ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT */
42 : : [28] = 56000, /* ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT */
43 : : [29] = 56000, /* ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT */
44 : : [30] = 56000, /* ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT */
45 : : [31] = 25000, /* ETHTOOL_LINK_MODE_25000baseCR_Full_BIT */
46 : : [32] = 25000, /* ETHTOOL_LINK_MODE_25000baseKR_Full_BIT */
47 : : [33] = 25000, /* ETHTOOL_LINK_MODE_25000baseSR_Full_BIT */
48 : : [34] = 50000, /* ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT */
49 : : [35] = 50000, /* ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT */
50 : : [36] = 100000, /* ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT */
51 : : [37] = 100000, /* ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT */
52 : : [38] = 100000, /* ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT */
53 : : [39] = 100000, /* ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT */
54 : : [40] = 50000, /* ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT */
55 : : [41] = 1000, /* ETHTOOL_LINK_MODE_1000baseX_Full_BIT */
56 : : [42] = 10000, /* ETHTOOL_LINK_MODE_10000baseCR_Full_BIT */
57 : : [43] = 10000, /* ETHTOOL_LINK_MODE_10000baseSR_Full_BIT */
58 : : [44] = 10000, /* ETHTOOL_LINK_MODE_10000baseLR_Full_BIT */
59 : : [45] = 10000, /* ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT */
60 : : [46] = 10000, /* ETHTOOL_LINK_MODE_10000baseER_Full_BIT */
61 : : [47] = 2500, /* ETHTOOL_LINK_MODE_2500baseT_Full_BIT */
62 : : [48] = 5000, /* ETHTOOL_LINK_MODE_5000baseT_Full_BIT */
63 : : [52] = 50000, /* ETHTOOL_LINK_MODE_50000baseKR_Full_BIT */
64 : : [53] = 50000, /* ETHTOOL_LINK_MODE_50000baseSR_Full_BIT */
65 : : [54] = 50000, /* ETHTOOL_LINK_MODE_50000baseCR_Full_BIT */
66 : : [55] = 50000, /* ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT */
67 : : [56] = 50000, /* ETHTOOL_LINK_MODE_50000baseDR_Full_BIT */
68 : : [57] = 100000, /* ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT */
69 : : [58] = 100000, /* ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT */
70 : : [59] = 100000, /* ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT */
71 : : [60] = 100000, /* ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT */
72 : : [61] = 100000, /* ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT */
73 : : [62] = 200000, /* ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT */
74 : : [63] = 200000, /* ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT */
75 : : [64] = 200000, /* ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT */
76 : : [65] = 200000, /* ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT */
77 : : [66] = 200000, /* ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT */
78 : : [67] = 100, /* ETHTOOL_LINK_MODE_100baseT1_Full_BIT */
79 : : [68] = 1000, /* ETHTOOL_LINK_MODE_1000baseT1_Full_BIT */
80 : : [69] = 400000, /* ETHTOOL_LINK_MODE_400000baseKR8_Full_BIT */
81 : : [70] = 400000, /* ETHTOOL_LINK_MODE_400000baseSR8_Full_BIT */
82 : : [71] = 400000, /* ETHTOOL_LINK_MODE_400000baseLR8_ER8_FR8_Full_BIT */
83 : : [72] = 400000, /* ETHTOOL_LINK_MODE_400000baseDR8_Full_BIT */
84 : : [73] = 400000, /* ETHTOOL_LINK_MODE_400000baseCR8_Full_BIT */
85 : : [75] = 100000, /* ETHTOOL_LINK_MODE_100000baseKR_Full_BIT */
86 : : [76] = 100000, /* ETHTOOL_LINK_MODE_100000baseSR_Full_BIT */
87 : : [77] = 100000, /* ETHTOOL_LINK_MODE_100000baseLR_ER_FR_Full_BIT */
88 : : [78] = 100000, /* ETHTOOL_LINK_MODE_100000baseCR_Full_BIT */
89 : : [79] = 100000, /* ETHTOOL_LINK_MODE_100000baseDR_Full_BIT */
90 : : [80] = 200000, /* ETHTOOL_LINK_MODE_200000baseKR2_Full_BIT */
91 : : [81] = 200000, /* ETHTOOL_LINK_MODE_200000baseSR2_Full_BIT */
92 : : [82] = 200000, /* ETHTOOL_LINK_MODE_200000baseLR2_ER2_FR2_Full_BIT */
93 : : [83] = 200000, /* ETHTOOL_LINK_MODE_200000baseDR2_Full_BIT */
94 : : [84] = 200000, /* ETHTOOL_LINK_MODE_200000baseCR2_Full_BIT */
95 : : [85] = 400000, /* ETHTOOL_LINK_MODE_400000baseKR4_Full_BIT */
96 : : [86] = 400000, /* ETHTOOL_LINK_MODE_400000baseSR4_Full_BIT */
97 : : [87] = 400000, /* ETHTOOL_LINK_MODE_400000baseLR4_ER4_FR4_Full_BIT */
98 : : [88] = 400000, /* ETHTOOL_LINK_MODE_400000baseDR4_Full_BIT */
99 : : [89] = 400000, /* ETHTOOL_LINK_MODE_400000baseCR4_Full_BIT */
100 : : [90] = 101, /* ETHTOOL_LINK_MODE_100baseFX_Half_BIT */
101 : : [91] = 100, /* ETHTOOL_LINK_MODE_100baseFX_Full_BIT */
102 : : [92] = 10, /* ETHTOOL_LINK_MODE_10baseT1L_Full_BIT */
103 : : [93] = 800000, /* ETHTOOL_LINK_MODE_800000baseCR8_Full_BIT */
104 : : [94] = 800000, /* ETHTOOL_LINK_MODE_800000baseKR8_Full_BIT */
105 : : [95] = 800000, /* ETHTOOL_LINK_MODE_800000baseDR8_Full_BIT */
106 : : [96] = 800000, /* ETHTOOL_LINK_MODE_800000baseDR8_2_Full_BIT */
107 : : [97] = 800000, /* ETHTOOL_LINK_MODE_800000baseSR8_Full_BIT */
108 : : [98] = 800000, /* ETHTOOL_LINK_MODE_800000baseVR8_Full_BIT */
109 : : [99] = 10, /* ETHTOOL_LINK_MODE_10baseT1S_Full_BIT */
110 : : [100] = 11, /* ETHTOOL_LINK_MODE_10baseT1S_Half_BIT */
111 : : [101] = 11, /* ETHTOOL_LINK_MODE_10baseT1S_P2MP_Half_BIT */
112 : : };
113 : :
114 : : uint32_t
115 : 0 : rte_eth_link_speed_ethtool(enum ethtool_link_mode_bit_indices bit)
116 : : {
117 : : uint32_t speed;
118 : : int duplex;
119 : :
120 : : /* get mode from array */
121 [ # # ]: 0 : if (bit >= RTE_DIM(link_modes))
122 : : return RTE_ETH_LINK_SPEED_AUTONEG;
123 : 0 : speed = link_modes[bit];
124 [ # # ]: 0 : if (speed == 0)
125 : : return RTE_ETH_LINK_SPEED_AUTONEG;
126 : : RTE_BUILD_BUG_ON(RTE_ETH_LINK_SPEED_AUTONEG != 0);
127 : :
128 : : /* duplex is LSB */
129 : 0 : duplex = (speed & 1) ?
130 : : RTE_ETH_LINK_HALF_DUPLEX :
131 : : RTE_ETH_LINK_FULL_DUPLEX;
132 : 0 : speed &= RTE_GENMASK32(31, 1);
133 : :
134 : 0 : return rte_eth_speed_bitflag(speed, duplex);
135 : : }
136 : :
137 : : uint32_t
138 : 0 : rte_eth_link_speed_glink(const uint32_t *bitmap, int8_t nwords)
139 : : {
140 : : uint8_t word, bit;
141 : : uint32_t ethdev_bitmap = 0;
142 : :
143 [ # # ]: 0 : if (nwords < 1)
144 : : return 0;
145 : :
146 [ # # ]: 0 : for (word = 0; word < nwords; word++) {
147 [ # # ]: 0 : for (bit = 0; bit < 32; bit++) {
148 [ # # ]: 0 : if ((bitmap[word] & RTE_BIT32(bit)) == 0)
149 : 0 : continue;
150 : 0 : ethdev_bitmap |= rte_eth_link_speed_ethtool(word * 32 + bit);
151 : : }
152 : : }
153 : :
154 : : return ethdev_bitmap;
155 : : }
156 : :
157 : : uint32_t
158 : 0 : rte_eth_link_speed_gset(uint32_t legacy_bitmap)
159 : : {
160 : 0 : return rte_eth_link_speed_glink(&legacy_bitmap, 1);
161 : : }
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