diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/switchib.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/switchib.c | 595 |
1 files changed, 0 insertions, 595 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/switchib.c b/drivers/net/ethernet/mellanox/mlxsw/switchib.c deleted file mode 100644 index 1e561132eb1e..000000000000 --- a/drivers/net/ethernet/mellanox/mlxsw/switchib.c +++ /dev/null @@ -1,595 +0,0 @@ -// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 -/* Copyright (c) 2016-2018 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/etherdevice.h> -#include <linux/slab.h> -#include <linux/device.h> -#include <linux/skbuff.h> -#include <linux/if_vlan.h> -#include <net/switchdev.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_sib_driver_name[] = "mlxsw_switchib"; -static const char mlxsw_sib2_driver_name[] = "mlxsw_switchib2"; - -struct mlxsw_sib_port; - -struct mlxsw_sib { - struct mlxsw_sib_port **ports; - struct mlxsw_core *core; - const struct mlxsw_bus_info *bus_info; - u8 hw_id[ETH_ALEN]; -}; - -struct mlxsw_sib_port { - struct mlxsw_sib *mlxsw_sib; - u8 local_port; - struct { - u8 module; - } mapping; -}; - -/* tx_v1_hdr_version - * Tx header version. - * Must be set to 1. - */ -MLXSW_ITEM32(tx_v1, hdr, version, 0x00, 28, 4); - -/* tx_v1_hdr_ctl - * Packet control type. - * 0 - Ethernet control (e.g. EMADs, LACP) - * 1 - Ethernet data - */ -MLXSW_ITEM32(tx_v1, hdr, ctl, 0x00, 26, 2); - -/* tx_v1_hdr_proto - * Packet protocol type. Must be set to 1 (Ethernet). - */ -MLXSW_ITEM32(tx_v1, hdr, proto, 0x00, 21, 3); - -/* tx_v1_hdr_swid - * Switch partition ID. Must be set to 0. - */ -MLXSW_ITEM32(tx_v1, hdr, swid, 0x00, 12, 3); - -/* tx_v1_hdr_control_tclass - * Indicates if the packet should use the control TClass and not one - * of the data TClasses. - */ -MLXSW_ITEM32(tx_v1, hdr, control_tclass, 0x00, 6, 1); - -/* tx_v1_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_v1, hdr, port_mid, 0x04, 16, 16); - -/* tx_v1_hdr_type - * 0 - Data packets - * 6 - Control packets - */ -MLXSW_ITEM32(tx_v1, hdr, type, 0x0C, 0, 4); - -static void -mlxsw_sib_tx_v1_hdr_construct(struct sk_buff *skb, - const struct mlxsw_tx_info *tx_info) -{ - char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN); - - memset(txhdr, 0, MLXSW_TXHDR_LEN); - - mlxsw_tx_v1_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1); - mlxsw_tx_v1_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL); - mlxsw_tx_v1_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH); - mlxsw_tx_v1_hdr_swid_set(txhdr, 0); - mlxsw_tx_v1_hdr_control_tclass_set(txhdr, 1); - mlxsw_tx_v1_hdr_port_mid_set(txhdr, tx_info->local_port); - mlxsw_tx_v1_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL); -} - -static int mlxsw_sib_hw_id_get(struct mlxsw_sib *mlxsw_sib) -{ - char spad_pl[MLXSW_REG_SPAD_LEN] = {0}; - int err; - - err = mlxsw_reg_query(mlxsw_sib->core, MLXSW_REG(spad), spad_pl); - if (err) - return err; - mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sib->hw_id); - return 0; -} - -static int -mlxsw_sib_port_admin_status_set(struct mlxsw_sib_port *mlxsw_sib_port, - bool is_up) -{ - struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib; - char paos_pl[MLXSW_REG_PAOS_LEN]; - - mlxsw_reg_paos_pack(paos_pl, mlxsw_sib_port->local_port, - is_up ? MLXSW_PORT_ADMIN_STATUS_UP : - MLXSW_PORT_ADMIN_STATUS_DOWN); - return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(paos), paos_pl); -} - -static int mlxsw_sib_port_mtu_set(struct mlxsw_sib_port *mlxsw_sib_port, - u16 mtu) -{ - struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib; - char pmtu_pl[MLXSW_REG_PMTU_LEN]; - int max_mtu; - int err; - - mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sib_port->local_port, 0); - err = mlxsw_reg_query(mlxsw_sib->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_sib_port->local_port, mtu); - return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(pmtu), pmtu_pl); -} - -static int mlxsw_sib_port_set(struct mlxsw_sib_port *mlxsw_sib_port, u8 port) -{ - struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib; - char plib_pl[MLXSW_REG_PLIB_LEN] = {0}; - int err; - - mlxsw_reg_plib_local_port_set(plib_pl, mlxsw_sib_port->local_port); - mlxsw_reg_plib_ib_port_set(plib_pl, port); - err = mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(plib), plib_pl); - return err; -} - -static int mlxsw_sib_port_swid_set(struct mlxsw_sib_port *mlxsw_sib_port, - u8 swid) -{ - struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib; - char pspa_pl[MLXSW_REG_PSPA_LEN]; - - mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sib_port->local_port); - return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(pspa), pspa_pl); -} - -static int mlxsw_sib_port_module_info_get(struct mlxsw_sib *mlxsw_sib, - 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_sib->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_sib_port_speed_set(struct mlxsw_sib_port *mlxsw_sib_port, - u16 speed, u16 width) -{ - struct mlxsw_sib *mlxsw_sib = mlxsw_sib_port->mlxsw_sib; - char ptys_pl[MLXSW_REG_PTYS_LEN]; - - mlxsw_reg_ptys_ib_pack(ptys_pl, mlxsw_sib_port->local_port, speed, - width); - return mlxsw_reg_write(mlxsw_sib->core, MLXSW_REG(ptys), ptys_pl); -} - -static bool mlxsw_sib_port_created(struct mlxsw_sib *mlxsw_sib, u8 local_port) -{ - return mlxsw_sib->ports[local_port] != NULL; -} - -static int __mlxsw_sib_port_create(struct mlxsw_sib *mlxsw_sib, u8 local_port, - u8 module, u8 width) -{ - struct mlxsw_sib_port *mlxsw_sib_port; - int err; - - mlxsw_sib_port = kzalloc(sizeof(*mlxsw_sib_port), GFP_KERNEL); - if (!mlxsw_sib_port) - return -ENOMEM; - mlxsw_sib_port->mlxsw_sib = mlxsw_sib; - mlxsw_sib_port->local_port = local_port; - mlxsw_sib_port->mapping.module = module; - - err = mlxsw_sib_port_swid_set(mlxsw_sib_port, 0); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set SWID\n", - mlxsw_sib_port->local_port); - goto err_port_swid_set; - } - - /* Expose the IB port number as it's front panel name */ - err = mlxsw_sib_port_set(mlxsw_sib_port, module + 1); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set IB port\n", - mlxsw_sib_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_sib_port_speed_set(mlxsw_sib_port, - MLXSW_REG_PTYS_IB_SPEED_EDR - 1, - BIT(3) - 1); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set speed\n", - mlxsw_sib_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_sib_port_mtu_set(mlxsw_sib_port, MLXSW_IB_DEFAULT_MTU); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to set MTU\n", - mlxsw_sib_port->local_port); - goto err_port_mtu_set; - } - - err = mlxsw_sib_port_admin_status_set(mlxsw_sib_port, true); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to change admin state to UP\n", - mlxsw_sib_port->local_port); - goto err_port_admin_set; - } - - mlxsw_core_port_ib_set(mlxsw_sib->core, mlxsw_sib_port->local_port, - mlxsw_sib_port); - mlxsw_sib->ports[local_port] = mlxsw_sib_port; - return 0; - -err_port_admin_set: -err_port_mtu_set: -err_port_speed_set: -err_port_ib_set: - mlxsw_sib_port_swid_set(mlxsw_sib_port, MLXSW_PORT_SWID_DISABLED_PORT); -err_port_swid_set: - kfree(mlxsw_sib_port); - return err; -} - -static int mlxsw_sib_port_create(struct mlxsw_sib *mlxsw_sib, u8 local_port, - u8 module, u8 width) -{ - int err; - - err = mlxsw_core_port_init(mlxsw_sib->core, local_port, - module + 1, false, 0, false, 0, - mlxsw_sib->hw_id, sizeof(mlxsw_sib->hw_id)); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Port %d: Failed to init core port\n", - local_port); - return err; - } - err = __mlxsw_sib_port_create(mlxsw_sib, local_port, module, width); - if (err) - goto err_port_create; - - return 0; - -err_port_create: - mlxsw_core_port_fini(mlxsw_sib->core, local_port); - return err; -} - -static void __mlxsw_sib_port_remove(struct mlxsw_sib *mlxsw_sib, u8 local_port) -{ - struct mlxsw_sib_port *mlxsw_sib_port = mlxsw_sib->ports[local_port]; - - mlxsw_core_port_clear(mlxsw_sib->core, local_port, mlxsw_sib); - mlxsw_sib->ports[local_port] = NULL; - mlxsw_sib_port_admin_status_set(mlxsw_sib_port, false); - mlxsw_sib_port_swid_set(mlxsw_sib_port, MLXSW_PORT_SWID_DISABLED_PORT); - kfree(mlxsw_sib_port); -} - -static void mlxsw_sib_port_remove(struct mlxsw_sib *mlxsw_sib, u8 local_port) -{ - __mlxsw_sib_port_remove(mlxsw_sib, local_port); - mlxsw_core_port_fini(mlxsw_sib->core, local_port); -} - -static void mlxsw_sib_ports_remove(struct mlxsw_sib *mlxsw_sib) -{ - int i; - - for (i = 1; i < MLXSW_PORT_MAX_IB_PORTS; i++) - if (mlxsw_sib_port_created(mlxsw_sib, i)) - mlxsw_sib_port_remove(mlxsw_sib, i); - kfree(mlxsw_sib->ports); -} - -static int mlxsw_sib_ports_create(struct mlxsw_sib *mlxsw_sib) -{ - size_t alloc_size; - u8 module, width; - int i; - int err; - - alloc_size = sizeof(struct mlxsw_sib_port *) * MLXSW_PORT_MAX_IB_PORTS; - mlxsw_sib->ports = kzalloc(alloc_size, GFP_KERNEL); - if (!mlxsw_sib->ports) - return -ENOMEM; - - for (i = 1; i < MLXSW_PORT_MAX_IB_PORTS; i++) { - err = mlxsw_sib_port_module_info_get(mlxsw_sib, i, &module, - &width); - if (err) - goto err_port_module_info_get; - if (!width) - continue; - err = mlxsw_sib_port_create(mlxsw_sib, 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_sib_port_created(mlxsw_sib, i)) - mlxsw_sib_port_remove(mlxsw_sib, i); - kfree(mlxsw_sib->ports); - return err; -} - -static void -mlxsw_sib_pude_ib_event_func(struct mlxsw_sib_port *mlxsw_sib_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_sib_port->mapping.module + 1); - else - pr_info("ib link for port %d - down\n", - mlxsw_sib_port->mapping.module + 1); -} - -static void mlxsw_sib_pude_event_func(const struct mlxsw_reg_info *reg, - char *pude_pl, void *priv) -{ - struct mlxsw_sib *mlxsw_sib = priv; - struct mlxsw_sib_port *mlxsw_sib_port; - enum mlxsw_reg_pude_oper_status status; - u8 local_port; - - local_port = mlxsw_reg_pude_local_port_get(pude_pl); - mlxsw_sib_port = mlxsw_sib->ports[local_port]; - if (!mlxsw_sib_port) { - dev_warn(mlxsw_sib->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); - mlxsw_sib_pude_ib_event_func(mlxsw_sib_port, status); -} - -static const struct mlxsw_listener mlxsw_sib_listener[] = { - MLXSW_EVENTL(mlxsw_sib_pude_event_func, PUDE, EMAD), -}; - -static int mlxsw_sib_taps_init(struct mlxsw_sib *mlxsw_sib) -{ - int i; - int err; - - for (i = 0; i < ARRAY_SIZE(mlxsw_sib_listener); i++) { - err = mlxsw_core_trap_register(mlxsw_sib->core, - &mlxsw_sib_listener[i], - mlxsw_sib); - if (err) - goto err_rx_listener_register; - } - - return 0; - -err_rx_listener_register: - for (i--; i >= 0; i--) { - mlxsw_core_trap_unregister(mlxsw_sib->core, - &mlxsw_sib_listener[i], - mlxsw_sib); - } - - return err; -} - -static void mlxsw_sib_traps_fini(struct mlxsw_sib *mlxsw_sib) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(mlxsw_sib_listener); i++) { - mlxsw_core_trap_unregister(mlxsw_sib->core, - &mlxsw_sib_listener[i], mlxsw_sib); - } -} - -static int mlxsw_sib_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_SIB_EMAD); - return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); -} - -static int mlxsw_sib_init(struct mlxsw_core *mlxsw_core, - const struct mlxsw_bus_info *mlxsw_bus_info, - struct netlink_ext_ack *extack) -{ - struct mlxsw_sib *mlxsw_sib = mlxsw_core_driver_priv(mlxsw_core); - int err; - - mlxsw_sib->core = mlxsw_core; - mlxsw_sib->bus_info = mlxsw_bus_info; - - err = mlxsw_sib_hw_id_get(mlxsw_sib); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Failed to get switch HW ID\n"); - return err; - } - - err = mlxsw_sib_ports_create(mlxsw_sib); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Failed to create ports\n"); - return err; - } - - err = mlxsw_sib_taps_init(mlxsw_sib); - if (err) { - dev_err(mlxsw_sib->bus_info->dev, "Failed to set traps\n"); - goto err_traps_init_err; - } - - return 0; - -err_traps_init_err: - mlxsw_sib_ports_remove(mlxsw_sib); - return err; -} - -static void mlxsw_sib_fini(struct mlxsw_core *mlxsw_core) -{ - struct mlxsw_sib *mlxsw_sib = mlxsw_core_driver_priv(mlxsw_core); - - mlxsw_sib_traps_fini(mlxsw_sib); - mlxsw_sib_ports_remove(mlxsw_sib); -} - -static const struct mlxsw_config_profile mlxsw_sib_config_profile = { - .used_max_system_port = 1, - .max_system_port = 48000, - .used_max_ib_mc = 1, - .max_ib_mc = 27, - .used_max_pkey = 1, - .max_pkey = 32, - .swid_config = { - { - .used_type = 1, - .type = MLXSW_PORT_SWID_TYPE_IB, - } - }, -}; - -static struct mlxsw_driver mlxsw_sib_driver = { - .kind = mlxsw_sib_driver_name, - .priv_size = sizeof(struct mlxsw_sib), - .init = mlxsw_sib_init, - .fini = mlxsw_sib_fini, - .basic_trap_groups_set = mlxsw_sib_basic_trap_groups_set, - .txhdr_construct = mlxsw_sib_tx_v1_hdr_construct, - .txhdr_len = MLXSW_TXHDR_LEN, - .profile = &mlxsw_sib_config_profile, -}; - -static struct mlxsw_driver mlxsw_sib2_driver = { - .kind = mlxsw_sib2_driver_name, - .priv_size = sizeof(struct mlxsw_sib), - .init = mlxsw_sib_init, - .fini = mlxsw_sib_fini, - .basic_trap_groups_set = mlxsw_sib_basic_trap_groups_set, - .txhdr_construct = mlxsw_sib_tx_v1_hdr_construct, - .txhdr_len = MLXSW_TXHDR_LEN, - .profile = &mlxsw_sib_config_profile, -}; - -static const struct pci_device_id mlxsw_sib_pci_id_table[] = { - {PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SWITCHIB), 0}, - {0, }, -}; - -static struct pci_driver mlxsw_sib_pci_driver = { - .name = mlxsw_sib_driver_name, - .id_table = mlxsw_sib_pci_id_table, -}; - -static const struct pci_device_id mlxsw_sib2_pci_id_table[] = { - {PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SWITCHIB2), 0}, - {0, }, -}; - -static struct pci_driver mlxsw_sib2_pci_driver = { - .name = mlxsw_sib2_driver_name, - .id_table = mlxsw_sib2_pci_id_table, -}; - -static int __init mlxsw_sib_module_init(void) -{ - int err; - - err = mlxsw_core_driver_register(&mlxsw_sib_driver); - if (err) - return err; - - err = mlxsw_core_driver_register(&mlxsw_sib2_driver); - if (err) - goto err_sib2_driver_register; - - err = mlxsw_pci_driver_register(&mlxsw_sib_pci_driver); - if (err) - goto err_sib_pci_driver_register; - - err = mlxsw_pci_driver_register(&mlxsw_sib2_pci_driver); - if (err) - goto err_sib2_pci_driver_register; - - return 0; - -err_sib2_pci_driver_register: - mlxsw_pci_driver_unregister(&mlxsw_sib_pci_driver); -err_sib_pci_driver_register: - mlxsw_core_driver_unregister(&mlxsw_sib2_driver); -err_sib2_driver_register: - mlxsw_core_driver_unregister(&mlxsw_sib_driver); - return err; -} - -static void __exit mlxsw_sib_module_exit(void) -{ - mlxsw_pci_driver_unregister(&mlxsw_sib2_pci_driver); - mlxsw_pci_driver_unregister(&mlxsw_sib_pci_driver); - mlxsw_core_driver_unregister(&mlxsw_sib2_driver); - mlxsw_core_driver_unregister(&mlxsw_sib_driver); -} - -module_init(mlxsw_sib_module_init); -module_exit(mlxsw_sib_module_exit); - -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_AUTHOR("Elad Raz <eladr@@mellanox.com>"); -MODULE_DESCRIPTION("Mellanox SwitchIB and SwitchIB-2 driver"); -MODULE_ALIAS("mlxsw_switchib2"); -MODULE_DEVICE_TABLE(pci, mlxsw_sib_pci_id_table); -MODULE_DEVICE_TABLE(pci, mlxsw_sib2_pci_id_table); |