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