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 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 if (bit >= RTE_DIM(link_modes)) 122 return RTE_ETH_LINK_SPEED_AUTONEG; 123 speed = link_modes[bit]; 124 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 duplex = (speed & 1) ? 130 RTE_ETH_LINK_HALF_DUPLEX : 131 RTE_ETH_LINK_FULL_DUPLEX; 132 speed &= RTE_GENMASK32(31, 1); 133 134 return rte_eth_speed_bitflag(speed, duplex); 135 } 136 137 uint32_t 138 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 if (nwords < 1) 144 return 0; 145 146 for (word = 0; word < nwords; word++) { 147 for (bit = 0; bit < 32; bit++) { 148 if ((bitmap[word] & RTE_BIT32(bit)) == 0) 149 continue; 150 ethdev_bitmap |= rte_eth_link_speed_ethtool(word * 32 + bit); 151 } 152 } 153 154 return ethdev_bitmap; 155 } 156 157 uint32_t 158 rte_eth_link_speed_gset(uint32_t legacy_bitmap) 159 { 160 return rte_eth_link_speed_glink(&legacy_bitmap, 1); 161 } 162