new file mode 100644
@@ -0,0 +1,161 @@
+/* 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);
+}
new file mode 100644
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2024 NVIDIA Corporation & Affiliates
+ */
+
+#ifndef ETHDEV_ETHTOOL_H
+#define ETHDEV_ETHTOOL_H
+
+#include <stdint.h>
+#include <linux/ethtool.h>
+
+#include <rte_compat.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Convert bit from ETHTOOL_LINK_MODE_* to RTE_ETH_LINK_SPEED_*
+ */
+__rte_internal
+uint32_t rte_eth_link_speed_ethtool(enum ethtool_link_mode_bit_indices bit);
+
+/*
+ * Convert bitmap from ETHTOOL_GLINKSETTINGS ethtool_link_settings::link_mode_masks
+ * to bitmap RTE_ETH_LINK_SPEED_*
+ */
+__rte_internal
+uint32_t rte_eth_link_speed_glink(const uint32_t *bitmap, int8_t nwords);
+
+/*
+ * Convert bitmap from deprecated ETHTOOL_GSET ethtool_cmd::supported
+ * to bitmap RTE_ETH_LINK_SPEED_*
+ */
+__rte_internal
+uint32_t rte_eth_link_speed_gset(uint32_t legacy_bitmap);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ETHDEV_ETHTOOL_H */
@@ -44,6 +44,15 @@ driver_sdk_headers += files(
'ethdev_vdev.h',
)
+if is_linux
+ driver_sdk_headers += files(
+ 'ethdev_linux_ethtool.h',
+ )
+ sources += files(
+ 'ethdev_linux_ethtool.c',
+ )
+endif
+
deps += ['net', 'kvargs', 'meter', 'telemetry']
if is_freebsd
@@ -350,6 +350,9 @@ INTERNAL {
rte_eth_hairpin_queue_peer_unbind;
rte_eth_hairpin_queue_peer_update;
rte_eth_ip_reassembly_dynfield_register;
+ rte_eth_link_speed_ethtool; # WINDOWS_NO_EXPORT
+ rte_eth_link_speed_glink; # WINDOWS_NO_EXPORT
+ rte_eth_link_speed_gset; # WINDOWS_NO_EXPORT
rte_eth_pkt_burst_dummy;
rte_eth_representor_id_get;
rte_eth_switch_domain_alloc;