+++ /dev/null
-// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
-/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/netdevice.h>
-#include <linux/ethtool.h>
-#include <linux/etherdevice.h>
-#include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/skbuff.h>
-#include <linux/if_vlan.h>
-
-#include "pci.h"
-#include "core.h"
-#include "reg.h"
-#include "port.h"
-#include "trap.h"
-#include "txheader.h"
-#include "ib.h"
-
-static const char mlxsw_sx_driver_name[] = "mlxsw_switchx2";
-static const char mlxsw_sx_driver_version[] = "1.0";
-
-struct mlxsw_sx_port;
-
-struct mlxsw_sx {
- struct mlxsw_sx_port **ports;
- struct mlxsw_core *core;
- const struct mlxsw_bus_info *bus_info;
- u8 hw_id[ETH_ALEN];
-};
-
-struct mlxsw_sx_port_pcpu_stats {
- u64 rx_packets;
- u64 rx_bytes;
- u64 tx_packets;
- u64 tx_bytes;
- struct u64_stats_sync syncp;
- u32 tx_dropped;
-};
-
-struct mlxsw_sx_port {
- struct net_device *dev;
- struct mlxsw_sx_port_pcpu_stats __percpu *pcpu_stats;
- struct mlxsw_sx *mlxsw_sx;
- u8 local_port;
- struct {
- u8 module;
- } mapping;
-};
-
-/* tx_hdr_version
- * Tx header version.
- * Must be set to 0.
- */
-MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);
-
-/* tx_hdr_ctl
- * Packet control type.
- * 0 - Ethernet control (e.g. EMADs, LACP)
- * 1 - Ethernet data
- */
-MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);
-
-/* tx_hdr_proto
- * Packet protocol type. Must be set to 1 (Ethernet).
- */
-MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);
-
-/* tx_hdr_etclass
- * Egress TClass to be used on the egress device on the egress port.
- * The MSB is specified in the 'ctclass3' field.
- * Range is 0-15, where 15 is the highest priority.
- */
-MLXSW_ITEM32(tx, hdr, etclass, 0x00, 18, 3);
-
-/* tx_hdr_swid
- * Switch partition ID.
- */
-MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);
-
-/* tx_hdr_port_mid
- * Destination local port for unicast packets.
- * Destination multicast ID for multicast packets.
- *
- * Control packets are directed to a specific egress port, while data
- * packets are transmitted through the CPU port (0) into the switch partition,
- * where forwarding rules are applied.
- */
-MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);
-
-/* tx_hdr_ctclass3
- * See field 'etclass'.
- */
-MLXSW_ITEM32(tx, hdr, ctclass3, 0x04, 14, 1);
-
-/* tx_hdr_rdq
- * RDQ for control packets sent to remote CPU.
- * Must be set to 0x1F for EMADs, otherwise 0.
- */
-MLXSW_ITEM32(tx, hdr, rdq, 0x04, 9, 5);
-
-/* tx_hdr_cpu_sig
- * Signature control for packets going to CPU. Must be set to 0.
- */
-MLXSW_ITEM32(tx, hdr, cpu_sig, 0x04, 0, 9);
-
-/* tx_hdr_sig
- * Stacking protocl signature. Must be set to 0xE0E0.
- */
-MLXSW_ITEM32(tx, hdr, sig, 0x0C, 16, 16);
-
-/* tx_hdr_stclass
- * Stacking TClass.
- */
-MLXSW_ITEM32(tx, hdr, stclass, 0x0C, 13, 3);
-
-/* tx_hdr_emad
- * EMAD bit. Must be set for EMADs.
- */
-MLXSW_ITEM32(tx, hdr, emad, 0x0C, 5, 1);
-
-/* tx_hdr_type
- * 0 - Data packets
- * 6 - Control packets
- */
-MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);
-
-static void mlxsw_sx_txhdr_construct(struct sk_buff *skb,
- const struct mlxsw_tx_info *tx_info)
-{
- char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
- bool is_emad = tx_info->is_emad;
-
- memset(txhdr, 0, MLXSW_TXHDR_LEN);
-
- /* We currently set default values for the egress tclass (QoS). */
- mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_0);
- mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
- mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
- mlxsw_tx_hdr_etclass_set(txhdr, is_emad ? MLXSW_TXHDR_ETCLASS_6 :
- MLXSW_TXHDR_ETCLASS_5);
- mlxsw_tx_hdr_swid_set(txhdr, 0);
- mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
- mlxsw_tx_hdr_ctclass3_set(txhdr, MLXSW_TXHDR_CTCLASS3);
- mlxsw_tx_hdr_rdq_set(txhdr, is_emad ? MLXSW_TXHDR_RDQ_EMAD :
- MLXSW_TXHDR_RDQ_OTHER);
- mlxsw_tx_hdr_cpu_sig_set(txhdr, MLXSW_TXHDR_CPU_SIG);
- mlxsw_tx_hdr_sig_set(txhdr, MLXSW_TXHDR_SIG);
- mlxsw_tx_hdr_stclass_set(txhdr, MLXSW_TXHDR_STCLASS_NONE);
- mlxsw_tx_hdr_emad_set(txhdr, is_emad ? MLXSW_TXHDR_EMAD :
- MLXSW_TXHDR_NOT_EMAD);
- mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
-}
-
-static int mlxsw_sx_port_admin_status_set(struct mlxsw_sx_port *mlxsw_sx_port,
- bool is_up)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char paos_pl[MLXSW_REG_PAOS_LEN];
-
- mlxsw_reg_paos_pack(paos_pl, mlxsw_sx_port->local_port,
- is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
- MLXSW_PORT_ADMIN_STATUS_DOWN);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(paos), paos_pl);
-}
-
-static int mlxsw_sx_port_oper_status_get(struct mlxsw_sx_port *mlxsw_sx_port,
- bool *p_is_up)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char paos_pl[MLXSW_REG_PAOS_LEN];
- u8 oper_status;
- int err;
-
- mlxsw_reg_paos_pack(paos_pl, mlxsw_sx_port->local_port, 0);
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(paos), paos_pl);
- if (err)
- return err;
- oper_status = mlxsw_reg_paos_oper_status_get(paos_pl);
- *p_is_up = oper_status == MLXSW_PORT_ADMIN_STATUS_UP;
- return 0;
-}
-
-static int __mlxsw_sx_port_mtu_set(struct mlxsw_sx_port *mlxsw_sx_port,
- u16 mtu)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char pmtu_pl[MLXSW_REG_PMTU_LEN];
- int max_mtu;
- int err;
-
- mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sx_port->local_port, 0);
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(pmtu), pmtu_pl);
- if (err)
- return err;
- max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
-
- if (mtu > max_mtu)
- return -EINVAL;
-
- mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sx_port->local_port, mtu);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(pmtu), pmtu_pl);
-}
-
-static int mlxsw_sx_port_mtu_eth_set(struct mlxsw_sx_port *mlxsw_sx_port,
- u16 mtu)
-{
- mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
- return __mlxsw_sx_port_mtu_set(mlxsw_sx_port, mtu);
-}
-
-static int mlxsw_sx_port_mtu_ib_set(struct mlxsw_sx_port *mlxsw_sx_port,
- u16 mtu)
-{
- return __mlxsw_sx_port_mtu_set(mlxsw_sx_port, mtu);
-}
-
-static int mlxsw_sx_port_ib_port_set(struct mlxsw_sx_port *mlxsw_sx_port,
- u8 ib_port)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char plib_pl[MLXSW_REG_PLIB_LEN] = {0};
- int err;
-
- mlxsw_reg_plib_local_port_set(plib_pl, mlxsw_sx_port->local_port);
- mlxsw_reg_plib_ib_port_set(plib_pl, ib_port);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(plib), plib_pl);
- return err;
-}
-
-static int mlxsw_sx_port_swid_set(struct mlxsw_sx_port *mlxsw_sx_port, u8 swid)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char pspa_pl[MLXSW_REG_PSPA_LEN];
-
- mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sx_port->local_port);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(pspa), pspa_pl);
-}
-
-static int
-mlxsw_sx_port_system_port_mapping_set(struct mlxsw_sx_port *mlxsw_sx_port)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char sspr_pl[MLXSW_REG_SSPR_LEN];
-
- mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sx_port->local_port);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sspr), sspr_pl);
-}
-
-static int mlxsw_sx_port_module_info_get(struct mlxsw_sx *mlxsw_sx,
- u8 local_port, u8 *p_module,
- u8 *p_width)
-{
- char pmlp_pl[MLXSW_REG_PMLP_LEN];
- int err;
-
- mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(pmlp), pmlp_pl);
- if (err)
- return err;
- *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
- *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
- return 0;
-}
-
-static int mlxsw_sx_port_open(struct net_device *dev)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- int err;
-
- err = mlxsw_sx_port_admin_status_set(mlxsw_sx_port, true);
- if (err)
- return err;
- netif_start_queue(dev);
- return 0;
-}
-
-static int mlxsw_sx_port_stop(struct net_device *dev)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
-
- netif_stop_queue(dev);
- return mlxsw_sx_port_admin_status_set(mlxsw_sx_port, false);
-}
-
-static netdev_tx_t mlxsw_sx_port_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- struct mlxsw_sx_port_pcpu_stats *pcpu_stats;
- const struct mlxsw_tx_info tx_info = {
- .local_port = mlxsw_sx_port->local_port,
- .is_emad = false,
- };
- u64 len;
- int err;
-
- if (skb_cow_head(skb, MLXSW_TXHDR_LEN)) {
- this_cpu_inc(mlxsw_sx_port->pcpu_stats->tx_dropped);
- dev_kfree_skb_any(skb);
- return NETDEV_TX_OK;
- }
-
- memset(skb->cb, 0, sizeof(struct mlxsw_skb_cb));
-
- if (mlxsw_core_skb_transmit_busy(mlxsw_sx->core, &tx_info))
- return NETDEV_TX_BUSY;
-
- mlxsw_sx_txhdr_construct(skb, &tx_info);
- /* TX header is consumed by HW on the way so we shouldn't count its
- * bytes as being sent.
- */
- len = skb->len - MLXSW_TXHDR_LEN;
- /* Due to a race we might fail here because of a full queue. In that
- * unlikely case we simply drop the packet.
- */
- err = mlxsw_core_skb_transmit(mlxsw_sx->core, skb, &tx_info);
-
- if (!err) {
- pcpu_stats = this_cpu_ptr(mlxsw_sx_port->pcpu_stats);
- u64_stats_update_begin(&pcpu_stats->syncp);
- pcpu_stats->tx_packets++;
- pcpu_stats->tx_bytes += len;
- u64_stats_update_end(&pcpu_stats->syncp);
- } else {
- this_cpu_inc(mlxsw_sx_port->pcpu_stats->tx_dropped);
- dev_kfree_skb_any(skb);
- }
- return NETDEV_TX_OK;
-}
-
-static int mlxsw_sx_port_change_mtu(struct net_device *dev, int mtu)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- int err;
-
- err = mlxsw_sx_port_mtu_eth_set(mlxsw_sx_port, mtu);
- if (err)
- return err;
- dev->mtu = mtu;
- return 0;
-}
-
-static void
-mlxsw_sx_port_get_stats64(struct net_device *dev,
- struct rtnl_link_stats64 *stats)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- struct mlxsw_sx_port_pcpu_stats *p;
- u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
- u32 tx_dropped = 0;
- unsigned int start;
- int i;
-
- for_each_possible_cpu(i) {
- p = per_cpu_ptr(mlxsw_sx_port->pcpu_stats, i);
- do {
- start = u64_stats_fetch_begin_irq(&p->syncp);
- rx_packets = p->rx_packets;
- rx_bytes = p->rx_bytes;
- tx_packets = p->tx_packets;
- tx_bytes = p->tx_bytes;
- } while (u64_stats_fetch_retry_irq(&p->syncp, start));
-
- stats->rx_packets += rx_packets;
- stats->rx_bytes += rx_bytes;
- stats->tx_packets += tx_packets;
- stats->tx_bytes += tx_bytes;
- /* tx_dropped is u32, updated without syncp protection. */
- tx_dropped += p->tx_dropped;
- }
- stats->tx_dropped = tx_dropped;
-}
-
-static struct devlink_port *
-mlxsw_sx_port_get_devlink_port(struct net_device *dev)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
-
- return mlxsw_core_port_devlink_port_get(mlxsw_sx->core,
- mlxsw_sx_port->local_port);
-}
-
-static const struct net_device_ops mlxsw_sx_port_netdev_ops = {
- .ndo_open = mlxsw_sx_port_open,
- .ndo_stop = mlxsw_sx_port_stop,
- .ndo_start_xmit = mlxsw_sx_port_xmit,
- .ndo_change_mtu = mlxsw_sx_port_change_mtu,
- .ndo_get_stats64 = mlxsw_sx_port_get_stats64,
- .ndo_get_devlink_port = mlxsw_sx_port_get_devlink_port,
-};
-
-static void mlxsw_sx_port_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *drvinfo)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
-
- strlcpy(drvinfo->driver, mlxsw_sx_driver_name, sizeof(drvinfo->driver));
- strlcpy(drvinfo->version, mlxsw_sx_driver_version,
- sizeof(drvinfo->version));
- snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
- "%d.%d.%d",
- mlxsw_sx->bus_info->fw_rev.major,
- mlxsw_sx->bus_info->fw_rev.minor,
- mlxsw_sx->bus_info->fw_rev.subminor);
- strlcpy(drvinfo->bus_info, mlxsw_sx->bus_info->device_name,
- sizeof(drvinfo->bus_info));
-}
-
-struct mlxsw_sx_port_hw_stats {
- char str[ETH_GSTRING_LEN];
- u64 (*getter)(const char *payload);
-};
-
-static const struct mlxsw_sx_port_hw_stats mlxsw_sx_port_hw_stats[] = {
- {
- .str = "a_frames_transmitted_ok",
- .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
- },
- {
- .str = "a_frames_received_ok",
- .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
- },
- {
- .str = "a_frame_check_sequence_errors",
- .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
- },
- {
- .str = "a_alignment_errors",
- .getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
- },
- {
- .str = "a_octets_transmitted_ok",
- .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
- },
- {
- .str = "a_octets_received_ok",
- .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
- },
- {
- .str = "a_multicast_frames_xmitted_ok",
- .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
- },
- {
- .str = "a_broadcast_frames_xmitted_ok",
- .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
- },
- {
- .str = "a_multicast_frames_received_ok",
- .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
- },
- {
- .str = "a_broadcast_frames_received_ok",
- .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
- },
- {
- .str = "a_in_range_length_errors",
- .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
- },
- {
- .str = "a_out_of_range_length_field",
- .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
- },
- {
- .str = "a_frame_too_long_errors",
- .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
- },
- {
- .str = "a_symbol_error_during_carrier",
- .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
- },
- {
- .str = "a_mac_control_frames_transmitted",
- .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
- },
- {
- .str = "a_mac_control_frames_received",
- .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
- },
- {
- .str = "a_unsupported_opcodes_received",
- .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
- },
- {
- .str = "a_pause_mac_ctrl_frames_received",
- .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
- },
- {
- .str = "a_pause_mac_ctrl_frames_xmitted",
- .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
- },
-};
-
-#define MLXSW_SX_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sx_port_hw_stats)
-
-static void mlxsw_sx_port_get_strings(struct net_device *dev,
- u32 stringset, u8 *data)
-{
- u8 *p = data;
- int i;
-
- switch (stringset) {
- case ETH_SS_STATS:
- for (i = 0; i < MLXSW_SX_PORT_HW_STATS_LEN; i++) {
- memcpy(p, mlxsw_sx_port_hw_stats[i].str,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
- break;
- }
-}
-
-static void mlxsw_sx_port_get_stats(struct net_device *dev,
- struct ethtool_stats *stats, u64 *data)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
- int i;
- int err;
-
- mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sx_port->local_port,
- MLXSW_REG_PPCNT_IEEE_8023_CNT, 0);
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(ppcnt), ppcnt_pl);
- for (i = 0; i < MLXSW_SX_PORT_HW_STATS_LEN; i++)
- data[i] = !err ? mlxsw_sx_port_hw_stats[i].getter(ppcnt_pl) : 0;
-}
-
-static int mlxsw_sx_port_get_sset_count(struct net_device *dev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return MLXSW_SX_PORT_HW_STATS_LEN;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-struct mlxsw_sx_port_link_mode {
- u32 mask;
- u32 supported;
- u32 advertised;
- u32 speed;
-};
-
-static const struct mlxsw_sx_port_link_mode mlxsw_sx_port_link_mode[] = {
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII |
- MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
- .supported = SUPPORTED_1000baseKX_Full,
- .advertised = ADVERTISED_1000baseKX_Full,
- .speed = 1000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
- MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
- .supported = SUPPORTED_10000baseKX4_Full,
- .advertised = ADVERTISED_10000baseKX4_Full,
- .speed = 10000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
- MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
- MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
- MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
- .supported = SUPPORTED_10000baseKR_Full,
- .advertised = ADVERTISED_10000baseKR_Full,
- .speed = 10000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
- .supported = SUPPORTED_40000baseCR4_Full,
- .advertised = ADVERTISED_40000baseCR4_Full,
- .speed = 40000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
- .supported = SUPPORTED_40000baseKR4_Full,
- .advertised = ADVERTISED_40000baseKR4_Full,
- .speed = 40000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
- .supported = SUPPORTED_40000baseSR4_Full,
- .advertised = ADVERTISED_40000baseSR4_Full,
- .speed = 40000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
- .supported = SUPPORTED_40000baseLR4_Full,
- .advertised = ADVERTISED_40000baseLR4_Full,
- .speed = 40000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR |
- MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR |
- MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
- .speed = 25000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 |
- MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 |
- MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
- .speed = 50000,
- },
- {
- .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
- .speed = 100000,
- },
-};
-
-#define MLXSW_SX_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sx_port_link_mode)
-#define MLXSW_SX_PORT_BASE_SPEED 10000 /* Mb/s */
-
-static u32 mlxsw_sx_from_ptys_supported_port(u32 ptys_eth_proto)
-{
- if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
- MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
- MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
- MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
- MLXSW_REG_PTYS_ETH_SPEED_SGMII))
- return SUPPORTED_FIBRE;
-
- if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
- MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
- MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
- MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
- return SUPPORTED_Backplane;
- return 0;
-}
-
-static u32 mlxsw_sx_from_ptys_supported_link(u32 ptys_eth_proto)
-{
- u32 modes = 0;
- int i;
-
- for (i = 0; i < MLXSW_SX_PORT_LINK_MODE_LEN; i++) {
- if (ptys_eth_proto & mlxsw_sx_port_link_mode[i].mask)
- modes |= mlxsw_sx_port_link_mode[i].supported;
- }
- return modes;
-}
-
-static u32 mlxsw_sx_from_ptys_advert_link(u32 ptys_eth_proto)
-{
- u32 modes = 0;
- int i;
-
- for (i = 0; i < MLXSW_SX_PORT_LINK_MODE_LEN; i++) {
- if (ptys_eth_proto & mlxsw_sx_port_link_mode[i].mask)
- modes |= mlxsw_sx_port_link_mode[i].advertised;
- }
- return modes;
-}
-
-static void mlxsw_sx_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
- struct ethtool_link_ksettings *cmd)
-{
- u32 speed = SPEED_UNKNOWN;
- u8 duplex = DUPLEX_UNKNOWN;
- int i;
-
- if (!carrier_ok)
- goto out;
-
- for (i = 0; i < MLXSW_SX_PORT_LINK_MODE_LEN; i++) {
- if (ptys_eth_proto & mlxsw_sx_port_link_mode[i].mask) {
- speed = mlxsw_sx_port_link_mode[i].speed;
- duplex = DUPLEX_FULL;
- break;
- }
- }
-out:
- cmd->base.speed = speed;
- cmd->base.duplex = duplex;
-}
-
-static u8 mlxsw_sx_port_connector_port(u32 ptys_eth_proto)
-{
- if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
- MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
- MLXSW_REG_PTYS_ETH_SPEED_SGMII))
- return PORT_FIBRE;
-
- if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
- MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
- return PORT_DA;
-
- if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
- MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
- MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
- MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
- return PORT_NONE;
-
- return PORT_OTHER;
-}
-
-static int
-mlxsw_sx_port_get_link_ksettings(struct net_device *dev,
- struct ethtool_link_ksettings *cmd)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char ptys_pl[MLXSW_REG_PTYS_LEN];
- u32 eth_proto_cap;
- u32 eth_proto_admin;
- u32 eth_proto_oper;
- u32 supported, advertising, lp_advertising;
- int err;
-
- mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port, 0, false);
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
- if (err) {
- netdev_err(dev, "Failed to get proto");
- return err;
- }
- mlxsw_reg_ptys_eth_unpack(ptys_pl, ð_proto_cap,
- ð_proto_admin, ð_proto_oper);
-
- supported = mlxsw_sx_from_ptys_supported_port(eth_proto_cap) |
- mlxsw_sx_from_ptys_supported_link(eth_proto_cap) |
- SUPPORTED_Pause | SUPPORTED_Asym_Pause;
- advertising = mlxsw_sx_from_ptys_advert_link(eth_proto_admin);
- mlxsw_sx_from_ptys_speed_duplex(netif_carrier_ok(dev),
- eth_proto_oper, cmd);
-
- eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
- cmd->base.port = mlxsw_sx_port_connector_port(eth_proto_oper);
- lp_advertising = mlxsw_sx_from_ptys_advert_link(eth_proto_oper);
-
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
- supported);
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
- advertising);
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.lp_advertising,
- lp_advertising);
-
- return 0;
-}
-
-static u32 mlxsw_sx_to_ptys_advert_link(u32 advertising)
-{
- u32 ptys_proto = 0;
- int i;
-
- for (i = 0; i < MLXSW_SX_PORT_LINK_MODE_LEN; i++) {
- if (advertising & mlxsw_sx_port_link_mode[i].advertised)
- ptys_proto |= mlxsw_sx_port_link_mode[i].mask;
- }
- return ptys_proto;
-}
-
-static u32 mlxsw_sx_to_ptys_speed(u32 speed)
-{
- u32 ptys_proto = 0;
- int i;
-
- for (i = 0; i < MLXSW_SX_PORT_LINK_MODE_LEN; i++) {
- if (speed == mlxsw_sx_port_link_mode[i].speed)
- ptys_proto |= mlxsw_sx_port_link_mode[i].mask;
- }
- return ptys_proto;
-}
-
-static u32 mlxsw_sx_to_ptys_upper_speed(u32 upper_speed)
-{
- u32 ptys_proto = 0;
- int i;
-
- for (i = 0; i < MLXSW_SX_PORT_LINK_MODE_LEN; i++) {
- if (mlxsw_sx_port_link_mode[i].speed <= upper_speed)
- ptys_proto |= mlxsw_sx_port_link_mode[i].mask;
- }
- return ptys_proto;
-}
-
-static int
-mlxsw_sx_port_set_link_ksettings(struct net_device *dev,
- const struct ethtool_link_ksettings *cmd)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char ptys_pl[MLXSW_REG_PTYS_LEN];
- u32 speed;
- u32 eth_proto_new;
- u32 eth_proto_cap;
- u32 eth_proto_admin;
- u32 advertising;
- bool is_up;
- int err;
-
- speed = cmd->base.speed;
-
- ethtool_convert_link_mode_to_legacy_u32(&advertising,
- cmd->link_modes.advertising);
-
- eth_proto_new = cmd->base.autoneg == AUTONEG_ENABLE ?
- mlxsw_sx_to_ptys_advert_link(advertising) :
- mlxsw_sx_to_ptys_speed(speed);
-
- mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port, 0, false);
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
- if (err) {
- netdev_err(dev, "Failed to get proto");
- return err;
- }
- mlxsw_reg_ptys_eth_unpack(ptys_pl, ð_proto_cap, ð_proto_admin,
- NULL);
-
- eth_proto_new = eth_proto_new & eth_proto_cap;
- if (!eth_proto_new) {
- netdev_err(dev, "Not supported proto admin requested");
- return -EINVAL;
- }
- if (eth_proto_new == eth_proto_admin)
- return 0;
-
- mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port,
- eth_proto_new, true);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
- if (err) {
- netdev_err(dev, "Failed to set proto admin");
- return err;
- }
-
- err = mlxsw_sx_port_oper_status_get(mlxsw_sx_port, &is_up);
- if (err) {
- netdev_err(dev, "Failed to get oper status");
- return err;
- }
- if (!is_up)
- return 0;
-
- err = mlxsw_sx_port_admin_status_set(mlxsw_sx_port, false);
- if (err) {
- netdev_err(dev, "Failed to set admin status");
- return err;
- }
-
- err = mlxsw_sx_port_admin_status_set(mlxsw_sx_port, true);
- if (err) {
- netdev_err(dev, "Failed to set admin status");
- return err;
- }
-
- return 0;
-}
-
-static const struct ethtool_ops mlxsw_sx_port_ethtool_ops = {
- .get_drvinfo = mlxsw_sx_port_get_drvinfo,
- .get_link = ethtool_op_get_link,
- .get_strings = mlxsw_sx_port_get_strings,
- .get_ethtool_stats = mlxsw_sx_port_get_stats,
- .get_sset_count = mlxsw_sx_port_get_sset_count,
- .get_link_ksettings = mlxsw_sx_port_get_link_ksettings,
- .set_link_ksettings = mlxsw_sx_port_set_link_ksettings,
-};
-
-static int mlxsw_sx_hw_id_get(struct mlxsw_sx *mlxsw_sx)
-{
- char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
- int err;
-
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(spad), spad_pl);
- if (err)
- return err;
- mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sx->hw_id);
- return 0;
-}
-
-static int mlxsw_sx_port_dev_addr_get(struct mlxsw_sx_port *mlxsw_sx_port)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- struct net_device *dev = mlxsw_sx_port->dev;
- char ppad_pl[MLXSW_REG_PPAD_LEN];
- int err;
-
- mlxsw_reg_ppad_pack(ppad_pl, false, 0);
- err = mlxsw_reg_query(mlxsw_sx->core, MLXSW_REG(ppad), ppad_pl);
- if (err)
- return err;
- mlxsw_reg_ppad_mac_memcpy_from(ppad_pl, dev->dev_addr);
- /* The last byte value in base mac address is guaranteed
- * to be such it does not overflow when adding local_port
- * value.
- */
- dev->dev_addr[ETH_ALEN - 1] += mlxsw_sx_port->local_port;
- return 0;
-}
-
-static int mlxsw_sx_port_stp_state_set(struct mlxsw_sx_port *mlxsw_sx_port,
- u16 vid, enum mlxsw_reg_spms_state state)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char *spms_pl;
- int err;
-
- spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
- if (!spms_pl)
- return -ENOMEM;
- mlxsw_reg_spms_pack(spms_pl, mlxsw_sx_port->local_port);
- mlxsw_reg_spms_vid_pack(spms_pl, vid, state);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(spms), spms_pl);
- kfree(spms_pl);
- return err;
-}
-
-static int mlxsw_sx_port_ib_speed_set(struct mlxsw_sx_port *mlxsw_sx_port,
- u16 speed, u16 width)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char ptys_pl[MLXSW_REG_PTYS_LEN];
-
- mlxsw_reg_ptys_ib_pack(ptys_pl, mlxsw_sx_port->local_port, speed,
- width);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
-}
-
-static int
-mlxsw_sx_port_speed_by_width_set(struct mlxsw_sx_port *mlxsw_sx_port, u8 width)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- u32 upper_speed = MLXSW_SX_PORT_BASE_SPEED * width;
- char ptys_pl[MLXSW_REG_PTYS_LEN];
- u32 eth_proto_admin;
-
- eth_proto_admin = mlxsw_sx_to_ptys_upper_speed(upper_speed);
- mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sx_port->local_port,
- eth_proto_admin, true);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(ptys), ptys_pl);
-}
-
-static int
-mlxsw_sx_port_mac_learning_mode_set(struct mlxsw_sx_port *mlxsw_sx_port,
- enum mlxsw_reg_spmlr_learn_mode mode)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_sx_port->mlxsw_sx;
- char spmlr_pl[MLXSW_REG_SPMLR_LEN];
-
- mlxsw_reg_spmlr_pack(spmlr_pl, mlxsw_sx_port->local_port, mode);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(spmlr), spmlr_pl);
-}
-
-static int __mlxsw_sx_port_eth_create(struct mlxsw_sx *mlxsw_sx, u8 local_port,
- u8 module, u8 width)
-{
- struct mlxsw_sx_port *mlxsw_sx_port;
- struct net_device *dev;
- int err;
-
- dev = alloc_etherdev(sizeof(struct mlxsw_sx_port));
- if (!dev)
- return -ENOMEM;
- SET_NETDEV_DEV(dev, mlxsw_sx->bus_info->dev);
- dev_net_set(dev, mlxsw_core_net(mlxsw_sx->core));
- mlxsw_sx_port = netdev_priv(dev);
- mlxsw_sx_port->dev = dev;
- mlxsw_sx_port->mlxsw_sx = mlxsw_sx;
- mlxsw_sx_port->local_port = local_port;
- mlxsw_sx_port->mapping.module = module;
-
- mlxsw_sx_port->pcpu_stats =
- netdev_alloc_pcpu_stats(struct mlxsw_sx_port_pcpu_stats);
- if (!mlxsw_sx_port->pcpu_stats) {
- err = -ENOMEM;
- goto err_alloc_stats;
- }
-
- dev->netdev_ops = &mlxsw_sx_port_netdev_ops;
- dev->ethtool_ops = &mlxsw_sx_port_ethtool_ops;
-
- err = mlxsw_sx_port_dev_addr_get(mlxsw_sx_port);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Unable to get port mac address\n",
- mlxsw_sx_port->local_port);
- goto err_dev_addr_get;
- }
-
- netif_carrier_off(dev);
-
- dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
- NETIF_F_VLAN_CHALLENGED;
-
- dev->min_mtu = 0;
- dev->max_mtu = ETH_MAX_MTU;
-
- /* Each packet needs to have a Tx header (metadata) on top all other
- * headers.
- */
- dev->needed_headroom = MLXSW_TXHDR_LEN;
-
- err = mlxsw_sx_port_system_port_mapping_set(mlxsw_sx_port);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set system port mapping\n",
- mlxsw_sx_port->local_port);
- goto err_port_system_port_mapping_set;
- }
-
- err = mlxsw_sx_port_swid_set(mlxsw_sx_port, 0);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set SWID\n",
- mlxsw_sx_port->local_port);
- goto err_port_swid_set;
- }
-
- err = mlxsw_sx_port_speed_by_width_set(mlxsw_sx_port, width);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set speed\n",
- mlxsw_sx_port->local_port);
- goto err_port_speed_set;
- }
-
- err = mlxsw_sx_port_mtu_eth_set(mlxsw_sx_port, ETH_DATA_LEN);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set MTU\n",
- mlxsw_sx_port->local_port);
- goto err_port_mtu_set;
- }
-
- err = mlxsw_sx_port_admin_status_set(mlxsw_sx_port, false);
- if (err)
- goto err_port_admin_status_set;
-
- err = mlxsw_sx_port_stp_state_set(mlxsw_sx_port,
- MLXSW_PORT_DEFAULT_VID,
- MLXSW_REG_SPMS_STATE_FORWARDING);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set STP state\n",
- mlxsw_sx_port->local_port);
- goto err_port_stp_state_set;
- }
-
- err = mlxsw_sx_port_mac_learning_mode_set(mlxsw_sx_port,
- MLXSW_REG_SPMLR_LEARN_MODE_DISABLE);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set MAC learning mode\n",
- mlxsw_sx_port->local_port);
- goto err_port_mac_learning_mode_set;
- }
-
- err = register_netdev(dev);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to register netdev\n",
- mlxsw_sx_port->local_port);
- goto err_register_netdev;
- }
-
- mlxsw_core_port_eth_set(mlxsw_sx->core, mlxsw_sx_port->local_port,
- mlxsw_sx_port, dev);
- mlxsw_sx->ports[local_port] = mlxsw_sx_port;
- return 0;
-
-err_register_netdev:
-err_port_mac_learning_mode_set:
-err_port_stp_state_set:
-err_port_admin_status_set:
-err_port_mtu_set:
-err_port_speed_set:
- mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
-err_port_swid_set:
-err_port_system_port_mapping_set:
-err_dev_addr_get:
- free_percpu(mlxsw_sx_port->pcpu_stats);
-err_alloc_stats:
- free_netdev(dev);
- return err;
-}
-
-static int mlxsw_sx_port_eth_create(struct mlxsw_sx *mlxsw_sx, u8 local_port,
- u8 module, u8 width)
-{
- int err;
-
- err = mlxsw_core_port_init(mlxsw_sx->core, local_port,
- module + 1, false, 0, false, 0,
- mlxsw_sx->hw_id, sizeof(mlxsw_sx->hw_id));
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to init core port\n",
- local_port);
- return err;
- }
- err = __mlxsw_sx_port_eth_create(mlxsw_sx, local_port, module, width);
- if (err)
- goto err_port_create;
-
- return 0;
-
-err_port_create:
- mlxsw_core_port_fini(mlxsw_sx->core, local_port);
- return err;
-}
-
-static void __mlxsw_sx_port_eth_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = mlxsw_sx->ports[local_port];
-
- mlxsw_core_port_clear(mlxsw_sx->core, local_port, mlxsw_sx);
- unregister_netdev(mlxsw_sx_port->dev); /* This calls ndo_stop */
- mlxsw_sx->ports[local_port] = NULL;
- mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
- free_percpu(mlxsw_sx_port->pcpu_stats);
- free_netdev(mlxsw_sx_port->dev);
-}
-
-static bool mlxsw_sx_port_created(struct mlxsw_sx *mlxsw_sx, u8 local_port)
-{
- return mlxsw_sx->ports[local_port] != NULL;
-}
-
-static int __mlxsw_sx_port_ib_create(struct mlxsw_sx *mlxsw_sx, u8 local_port,
- u8 module, u8 width)
-{
- struct mlxsw_sx_port *mlxsw_sx_port;
- int err;
-
- mlxsw_sx_port = kzalloc(sizeof(*mlxsw_sx_port), GFP_KERNEL);
- if (!mlxsw_sx_port)
- return -ENOMEM;
- mlxsw_sx_port->mlxsw_sx = mlxsw_sx;
- mlxsw_sx_port->local_port = local_port;
- mlxsw_sx_port->mapping.module = module;
-
- err = mlxsw_sx_port_system_port_mapping_set(mlxsw_sx_port);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set system port mapping\n",
- mlxsw_sx_port->local_port);
- goto err_port_system_port_mapping_set;
- }
-
- /* Adding port to Infiniband swid (1) */
- err = mlxsw_sx_port_swid_set(mlxsw_sx_port, 1);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set SWID\n",
- mlxsw_sx_port->local_port);
- goto err_port_swid_set;
- }
-
- /* Expose the IB port number as it's front panel name */
- err = mlxsw_sx_port_ib_port_set(mlxsw_sx_port, module + 1);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set IB port\n",
- mlxsw_sx_port->local_port);
- goto err_port_ib_set;
- }
-
- /* Supports all speeds from SDR to FDR (bitmask) and support bus width
- * of 1x, 2x and 4x (3 bits bitmask)
- */
- err = mlxsw_sx_port_ib_speed_set(mlxsw_sx_port,
- MLXSW_REG_PTYS_IB_SPEED_EDR - 1,
- BIT(3) - 1);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set speed\n",
- mlxsw_sx_port->local_port);
- goto err_port_speed_set;
- }
-
- /* Change to the maximum MTU the device supports, the SMA will take
- * care of the active MTU
- */
- err = mlxsw_sx_port_mtu_ib_set(mlxsw_sx_port, MLXSW_IB_DEFAULT_MTU);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to set MTU\n",
- mlxsw_sx_port->local_port);
- goto err_port_mtu_set;
- }
-
- err = mlxsw_sx_port_admin_status_set(mlxsw_sx_port, true);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Port %d: Failed to change admin state to UP\n",
- mlxsw_sx_port->local_port);
- goto err_port_admin_set;
- }
-
- mlxsw_core_port_ib_set(mlxsw_sx->core, mlxsw_sx_port->local_port,
- mlxsw_sx_port);
- mlxsw_sx->ports[local_port] = mlxsw_sx_port;
- return 0;
-
-err_port_admin_set:
-err_port_mtu_set:
-err_port_speed_set:
-err_port_ib_set:
- mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
-err_port_swid_set:
-err_port_system_port_mapping_set:
- kfree(mlxsw_sx_port);
- return err;
-}
-
-static void __mlxsw_sx_port_ib_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
-{
- struct mlxsw_sx_port *mlxsw_sx_port = mlxsw_sx->ports[local_port];
-
- mlxsw_core_port_clear(mlxsw_sx->core, local_port, mlxsw_sx);
- mlxsw_sx->ports[local_port] = NULL;
- mlxsw_sx_port_admin_status_set(mlxsw_sx_port, false);
- mlxsw_sx_port_swid_set(mlxsw_sx_port, MLXSW_PORT_SWID_DISABLED_PORT);
- kfree(mlxsw_sx_port);
-}
-
-static void __mlxsw_sx_port_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
-{
- enum devlink_port_type port_type =
- mlxsw_core_port_type_get(mlxsw_sx->core, local_port);
-
- if (port_type == DEVLINK_PORT_TYPE_ETH)
- __mlxsw_sx_port_eth_remove(mlxsw_sx, local_port);
- else if (port_type == DEVLINK_PORT_TYPE_IB)
- __mlxsw_sx_port_ib_remove(mlxsw_sx, local_port);
-}
-
-static void mlxsw_sx_port_remove(struct mlxsw_sx *mlxsw_sx, u8 local_port)
-{
- __mlxsw_sx_port_remove(mlxsw_sx, local_port);
- mlxsw_core_port_fini(mlxsw_sx->core, local_port);
-}
-
-static void mlxsw_sx_ports_remove(struct mlxsw_sx *mlxsw_sx)
-{
- int i;
-
- for (i = 1; i < mlxsw_core_max_ports(mlxsw_sx->core); i++)
- if (mlxsw_sx_port_created(mlxsw_sx, i))
- mlxsw_sx_port_remove(mlxsw_sx, i);
- kfree(mlxsw_sx->ports);
- mlxsw_sx->ports = NULL;
-}
-
-static int mlxsw_sx_ports_create(struct mlxsw_sx *mlxsw_sx)
-{
- unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sx->core);
- size_t alloc_size;
- u8 module, width;
- int i;
- int err;
-
- alloc_size = sizeof(struct mlxsw_sx_port *) * max_ports;
- mlxsw_sx->ports = kzalloc(alloc_size, GFP_KERNEL);
- if (!mlxsw_sx->ports)
- return -ENOMEM;
-
- for (i = 1; i < max_ports; i++) {
- err = mlxsw_sx_port_module_info_get(mlxsw_sx, i, &module,
- &width);
- if (err)
- goto err_port_module_info_get;
- if (!width)
- continue;
- err = mlxsw_sx_port_eth_create(mlxsw_sx, i, module, width);
- if (err)
- goto err_port_create;
- }
- return 0;
-
-err_port_create:
-err_port_module_info_get:
- for (i--; i >= 1; i--)
- if (mlxsw_sx_port_created(mlxsw_sx, i))
- mlxsw_sx_port_remove(mlxsw_sx, i);
- kfree(mlxsw_sx->ports);
- mlxsw_sx->ports = NULL;
- return err;
-}
-
-static void mlxsw_sx_pude_eth_event_func(struct mlxsw_sx_port *mlxsw_sx_port,
- enum mlxsw_reg_pude_oper_status status)
-{
- if (status == MLXSW_PORT_OPER_STATUS_UP) {
- netdev_info(mlxsw_sx_port->dev, "link up\n");
- netif_carrier_on(mlxsw_sx_port->dev);
- } else {
- netdev_info(mlxsw_sx_port->dev, "link down\n");
- netif_carrier_off(mlxsw_sx_port->dev);
- }
-}
-
-static void mlxsw_sx_pude_ib_event_func(struct mlxsw_sx_port *mlxsw_sx_port,
- enum mlxsw_reg_pude_oper_status status)
-{
- if (status == MLXSW_PORT_OPER_STATUS_UP)
- pr_info("ib link for port %d - up\n",
- mlxsw_sx_port->mapping.module + 1);
- else
- pr_info("ib link for port %d - down\n",
- mlxsw_sx_port->mapping.module + 1);
-}
-
-static void mlxsw_sx_pude_event_func(const struct mlxsw_reg_info *reg,
- char *pude_pl, void *priv)
-{
- struct mlxsw_sx *mlxsw_sx = priv;
- struct mlxsw_sx_port *mlxsw_sx_port;
- enum mlxsw_reg_pude_oper_status status;
- enum devlink_port_type port_type;
- u8 local_port;
-
- local_port = mlxsw_reg_pude_local_port_get(pude_pl);
- mlxsw_sx_port = mlxsw_sx->ports[local_port];
- if (!mlxsw_sx_port) {
- dev_warn(mlxsw_sx->bus_info->dev, "Port %d: Link event received for non-existent port\n",
- local_port);
- return;
- }
-
- status = mlxsw_reg_pude_oper_status_get(pude_pl);
- port_type = mlxsw_core_port_type_get(mlxsw_sx->core, local_port);
- if (port_type == DEVLINK_PORT_TYPE_ETH)
- mlxsw_sx_pude_eth_event_func(mlxsw_sx_port, status);
- else if (port_type == DEVLINK_PORT_TYPE_IB)
- mlxsw_sx_pude_ib_event_func(mlxsw_sx_port, status);
-}
-
-static void mlxsw_sx_rx_listener_func(struct sk_buff *skb, u8 local_port,
- void *priv)
-{
- struct mlxsw_sx *mlxsw_sx = priv;
- struct mlxsw_sx_port *mlxsw_sx_port = mlxsw_sx->ports[local_port];
- struct mlxsw_sx_port_pcpu_stats *pcpu_stats;
-
- if (unlikely(!mlxsw_sx_port)) {
- dev_warn_ratelimited(mlxsw_sx->bus_info->dev, "Port %d: skb received for non-existent port\n",
- local_port);
- return;
- }
-
- skb->dev = mlxsw_sx_port->dev;
-
- pcpu_stats = this_cpu_ptr(mlxsw_sx_port->pcpu_stats);
- u64_stats_update_begin(&pcpu_stats->syncp);
- pcpu_stats->rx_packets++;
- pcpu_stats->rx_bytes += skb->len;
- u64_stats_update_end(&pcpu_stats->syncp);
-
- skb->protocol = eth_type_trans(skb, skb->dev);
- netif_receive_skb(skb);
-}
-
-static int mlxsw_sx_port_type_set(struct mlxsw_core *mlxsw_core, u8 local_port,
- enum devlink_port_type new_type)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_core_driver_priv(mlxsw_core);
- u8 module, width;
- int err;
-
- if (!mlxsw_sx->ports || !mlxsw_sx->ports[local_port]) {
- dev_err(mlxsw_sx->bus_info->dev, "Port number \"%d\" does not exist\n",
- local_port);
- return -EINVAL;
- }
-
- if (new_type == DEVLINK_PORT_TYPE_AUTO)
- return -EOPNOTSUPP;
-
- __mlxsw_sx_port_remove(mlxsw_sx, local_port);
- err = mlxsw_sx_port_module_info_get(mlxsw_sx, local_port, &module,
- &width);
- if (err)
- goto err_port_module_info_get;
-
- if (new_type == DEVLINK_PORT_TYPE_ETH)
- err = __mlxsw_sx_port_eth_create(mlxsw_sx, local_port, module,
- width);
- else if (new_type == DEVLINK_PORT_TYPE_IB)
- err = __mlxsw_sx_port_ib_create(mlxsw_sx, local_port, module,
- width);
-
-err_port_module_info_get:
- return err;
-}
-
-enum {
- MLXSW_REG_HTGT_TRAP_GROUP_SX2_RX = 1,
- MLXSW_REG_HTGT_TRAP_GROUP_SX2_CTRL = 2,
-};
-
-#define MLXSW_SX_RXL(_trap_id) \
- MLXSW_RXL(mlxsw_sx_rx_listener_func, _trap_id, TRAP_TO_CPU, \
- false, SX2_RX, FORWARD)
-
-static const struct mlxsw_listener mlxsw_sx_listener[] = {
- MLXSW_EVENTL(mlxsw_sx_pude_event_func, PUDE, EMAD),
- MLXSW_SX_RXL(FDB_MC),
- MLXSW_SX_RXL(STP),
- MLXSW_SX_RXL(LACP),
- MLXSW_SX_RXL(EAPOL),
- MLXSW_SX_RXL(LLDP),
- MLXSW_SX_RXL(MMRP),
- MLXSW_SX_RXL(MVRP),
- MLXSW_SX_RXL(RPVST),
- MLXSW_SX_RXL(DHCP),
- MLXSW_SX_RXL(IGMP_QUERY),
- MLXSW_SX_RXL(IGMP_V1_REPORT),
- MLXSW_SX_RXL(IGMP_V2_REPORT),
- MLXSW_SX_RXL(IGMP_V2_LEAVE),
- MLXSW_SX_RXL(IGMP_V3_REPORT),
-};
-
-static int mlxsw_sx_traps_init(struct mlxsw_sx *mlxsw_sx)
-{
- char htgt_pl[MLXSW_REG_HTGT_LEN];
- int i;
- int err;
-
- mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_SX2_RX,
- MLXSW_REG_HTGT_INVALID_POLICER,
- MLXSW_REG_HTGT_DEFAULT_PRIORITY,
- MLXSW_REG_HTGT_DEFAULT_TC);
- mlxsw_reg_htgt_local_path_rdq_set(htgt_pl,
- MLXSW_REG_HTGT_LOCAL_PATH_RDQ_SX2_RX);
-
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(htgt), htgt_pl);
- if (err)
- return err;
-
- mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_SX2_CTRL,
- MLXSW_REG_HTGT_INVALID_POLICER,
- MLXSW_REG_HTGT_DEFAULT_PRIORITY,
- MLXSW_REG_HTGT_DEFAULT_TC);
- mlxsw_reg_htgt_local_path_rdq_set(htgt_pl,
- MLXSW_REG_HTGT_LOCAL_PATH_RDQ_SX2_CTRL);
-
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(htgt), htgt_pl);
- if (err)
- return err;
-
- for (i = 0; i < ARRAY_SIZE(mlxsw_sx_listener); i++) {
- err = mlxsw_core_trap_register(mlxsw_sx->core,
- &mlxsw_sx_listener[i],
- mlxsw_sx);
- if (err)
- goto err_listener_register;
-
- }
- return 0;
-
-err_listener_register:
- for (i--; i >= 0; i--) {
- mlxsw_core_trap_unregister(mlxsw_sx->core,
- &mlxsw_sx_listener[i],
- mlxsw_sx);
- }
- return err;
-}
-
-static void mlxsw_sx_traps_fini(struct mlxsw_sx *mlxsw_sx)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(mlxsw_sx_listener); i++) {
- mlxsw_core_trap_unregister(mlxsw_sx->core,
- &mlxsw_sx_listener[i],
- mlxsw_sx);
- }
-}
-
-static int mlxsw_sx_flood_init(struct mlxsw_sx *mlxsw_sx)
-{
- char sfgc_pl[MLXSW_REG_SFGC_LEN];
- char sgcr_pl[MLXSW_REG_SGCR_LEN];
- char *sftr_pl;
- int err;
-
- /* Configure a flooding table, which includes only CPU port. */
- sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
- if (!sftr_pl)
- return -ENOMEM;
- mlxsw_reg_sftr_pack(sftr_pl, 0, 0, MLXSW_REG_SFGC_TABLE_TYPE_SINGLE, 0,
- MLXSW_PORT_CPU_PORT, true);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sftr), sftr_pl);
- kfree(sftr_pl);
- if (err)
- return err;
-
- /* Flood different packet types using the flooding table. */
- mlxsw_reg_sfgc_pack(sfgc_pl,
- MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST,
- MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
- MLXSW_REG_SFGC_TABLE_TYPE_SINGLE,
- 0);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sfgc), sfgc_pl);
- if (err)
- return err;
-
- mlxsw_reg_sfgc_pack(sfgc_pl,
- MLXSW_REG_SFGC_TYPE_BROADCAST,
- MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
- MLXSW_REG_SFGC_TABLE_TYPE_SINGLE,
- 0);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sfgc), sfgc_pl);
- if (err)
- return err;
-
- mlxsw_reg_sfgc_pack(sfgc_pl,
- MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_NON_IP,
- MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
- MLXSW_REG_SFGC_TABLE_TYPE_SINGLE,
- 0);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sfgc), sfgc_pl);
- if (err)
- return err;
-
- mlxsw_reg_sfgc_pack(sfgc_pl,
- MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV6,
- MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
- MLXSW_REG_SFGC_TABLE_TYPE_SINGLE,
- 0);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sfgc), sfgc_pl);
- if (err)
- return err;
-
- mlxsw_reg_sfgc_pack(sfgc_pl,
- MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV4,
- MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
- MLXSW_REG_SFGC_TABLE_TYPE_SINGLE,
- 0);
- err = mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sfgc), sfgc_pl);
- if (err)
- return err;
-
- mlxsw_reg_sgcr_pack(sgcr_pl, true);
- return mlxsw_reg_write(mlxsw_sx->core, MLXSW_REG(sgcr), sgcr_pl);
-}
-
-static int mlxsw_sx_basic_trap_groups_set(struct mlxsw_core *mlxsw_core)
-{
- char htgt_pl[MLXSW_REG_HTGT_LEN];
-
- mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_EMAD,
- MLXSW_REG_HTGT_INVALID_POLICER,
- MLXSW_REG_HTGT_DEFAULT_PRIORITY,
- MLXSW_REG_HTGT_DEFAULT_TC);
- mlxsw_reg_htgt_swid_set(htgt_pl, MLXSW_PORT_SWID_ALL_SWIDS);
- mlxsw_reg_htgt_local_path_rdq_set(htgt_pl,
- MLXSW_REG_HTGT_LOCAL_PATH_RDQ_SX2_EMAD);
- return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
-}
-
-static int mlxsw_sx_init(struct mlxsw_core *mlxsw_core,
- const struct mlxsw_bus_info *mlxsw_bus_info,
- struct netlink_ext_ack *extack)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_core_driver_priv(mlxsw_core);
- int err;
-
- mlxsw_sx->core = mlxsw_core;
- mlxsw_sx->bus_info = mlxsw_bus_info;
-
- err = mlxsw_sx_hw_id_get(mlxsw_sx);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Failed to get switch HW ID\n");
- return err;
- }
-
- err = mlxsw_sx_ports_create(mlxsw_sx);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Failed to create ports\n");
- return err;
- }
-
- err = mlxsw_sx_traps_init(mlxsw_sx);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Failed to set traps\n");
- goto err_listener_register;
- }
-
- err = mlxsw_sx_flood_init(mlxsw_sx);
- if (err) {
- dev_err(mlxsw_sx->bus_info->dev, "Failed to initialize flood tables\n");
- goto err_flood_init;
- }
-
- return 0;
-
-err_flood_init:
- mlxsw_sx_traps_fini(mlxsw_sx);
-err_listener_register:
- mlxsw_sx_ports_remove(mlxsw_sx);
- return err;
-}
-
-static void mlxsw_sx_fini(struct mlxsw_core *mlxsw_core)
-{
- struct mlxsw_sx *mlxsw_sx = mlxsw_core_driver_priv(mlxsw_core);
-
- mlxsw_sx_traps_fini(mlxsw_sx);
- mlxsw_sx_ports_remove(mlxsw_sx);
-}
-
-static const struct mlxsw_config_profile mlxsw_sx_config_profile = {
- .used_max_vepa_channels = 1,
- .max_vepa_channels = 0,
- .used_max_mid = 1,
- .max_mid = 7000,
- .used_max_pgt = 1,
- .max_pgt = 0,
- .used_max_system_port = 1,
- .max_system_port = 48000,
- .used_max_vlan_groups = 1,
- .max_vlan_groups = 127,
- .used_max_regions = 1,
- .max_regions = 400,
- .used_flood_tables = 1,
- .max_flood_tables = 2,
- .max_vid_flood_tables = 1,
- .used_flood_mode = 1,
- .flood_mode = 3,
- .used_max_ib_mc = 1,
- .max_ib_mc = 6,
- .used_max_pkey = 1,
- .max_pkey = 0,
- .swid_config = {
- {
- .used_type = 1,
- .type = MLXSW_PORT_SWID_TYPE_ETH,
- },
- {
- .used_type = 1,
- .type = MLXSW_PORT_SWID_TYPE_IB,
- }
- },
-};
-
-static struct mlxsw_driver mlxsw_sx_driver = {
- .kind = mlxsw_sx_driver_name,
- .priv_size = sizeof(struct mlxsw_sx),
- .init = mlxsw_sx_init,
- .fini = mlxsw_sx_fini,
- .basic_trap_groups_set = mlxsw_sx_basic_trap_groups_set,
- .txhdr_construct = mlxsw_sx_txhdr_construct,
- .txhdr_len = MLXSW_TXHDR_LEN,
- .profile = &mlxsw_sx_config_profile,
- .port_type_set = mlxsw_sx_port_type_set,
-};
-
-static const struct pci_device_id mlxsw_sx_pci_id_table[] = {
- {PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SWITCHX2), 0},
- {0, },
-};
-
-static struct pci_driver mlxsw_sx_pci_driver = {
- .name = mlxsw_sx_driver_name,
- .id_table = mlxsw_sx_pci_id_table,
-};
-
-static int __init mlxsw_sx_module_init(void)
-{
- int err;
-
- err = mlxsw_core_driver_register(&mlxsw_sx_driver);
- if (err)
- return err;
-
- err = mlxsw_pci_driver_register(&mlxsw_sx_pci_driver);
- if (err)
- goto err_pci_driver_register;
-
- return 0;
-
-err_pci_driver_register:
- mlxsw_core_driver_unregister(&mlxsw_sx_driver);
- return err;
-}
-
-static void __exit mlxsw_sx_module_exit(void)
-{
- mlxsw_pci_driver_unregister(&mlxsw_sx_pci_driver);
- mlxsw_core_driver_unregister(&mlxsw_sx_driver);
-}
-
-module_init(mlxsw_sx_module_init);
-module_exit(mlxsw_sx_module_exit);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
-MODULE_DESCRIPTION("Mellanox SwitchX-2 driver");
-MODULE_DEVICE_TABLE(pci, mlxsw_sx_pci_id_table);
projects / linux.git / commitdiff