599 lines
16 KiB
C
599 lines
16 KiB
C
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// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
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/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */
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#include <net/devlink.h>
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#include "prestera_devlink.h"
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#include "prestera_hw.h"
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/* All driver-specific traps must be documented in
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* Documentation/networking/devlink/prestera.rst
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*/
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enum {
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DEVLINK_PRESTERA_TRAP_ID_BASE = DEVLINK_TRAP_GENERIC_ID_MAX,
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DEVLINK_PRESTERA_TRAP_ID_ARP_BC,
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DEVLINK_PRESTERA_TRAP_ID_IS_IS,
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DEVLINK_PRESTERA_TRAP_ID_OSPF,
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DEVLINK_PRESTERA_TRAP_ID_IP_BC_MAC,
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DEVLINK_PRESTERA_TRAP_ID_ROUTER_MC,
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DEVLINK_PRESTERA_TRAP_ID_VRRP,
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DEVLINK_PRESTERA_TRAP_ID_DHCP,
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DEVLINK_PRESTERA_TRAP_ID_MAC_TO_ME,
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DEVLINK_PRESTERA_TRAP_ID_IPV4_OPTIONS,
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DEVLINK_PRESTERA_TRAP_ID_IP_DEFAULT_ROUTE,
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DEVLINK_PRESTERA_TRAP_ID_IP_TO_ME,
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DEVLINK_PRESTERA_TRAP_ID_IPV4_ICMP_REDIRECT,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_0,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_1,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_2,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_3,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_4,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_5,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_6,
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DEVLINK_PRESTERA_TRAP_ID_ACL_CODE_7,
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DEVLINK_PRESTERA_TRAP_ID_BGP,
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DEVLINK_PRESTERA_TRAP_ID_SSH,
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DEVLINK_PRESTERA_TRAP_ID_TELNET,
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DEVLINK_PRESTERA_TRAP_ID_ICMP,
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DEVLINK_PRESTERA_TRAP_ID_MET_RED,
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DEVLINK_PRESTERA_TRAP_ID_IP_SIP_IS_ZERO,
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DEVLINK_PRESTERA_TRAP_ID_IP_UC_DIP_DA_MISMATCH,
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DEVLINK_PRESTERA_TRAP_ID_ILLEGAL_IPV4_HDR,
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DEVLINK_PRESTERA_TRAP_ID_ILLEGAL_IP_ADDR,
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DEVLINK_PRESTERA_TRAP_ID_INVALID_SA,
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DEVLINK_PRESTERA_TRAP_ID_LOCAL_PORT,
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DEVLINK_PRESTERA_TRAP_ID_PORT_NO_VLAN,
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DEVLINK_PRESTERA_TRAP_ID_RXDMA_DROP,
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};
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#define DEVLINK_PRESTERA_TRAP_NAME_ARP_BC \
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"arp_bc"
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#define DEVLINK_PRESTERA_TRAP_NAME_IS_IS \
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"is_is"
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#define DEVLINK_PRESTERA_TRAP_NAME_OSPF \
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"ospf"
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#define DEVLINK_PRESTERA_TRAP_NAME_IP_BC_MAC \
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"ip_bc_mac"
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#define DEVLINK_PRESTERA_TRAP_NAME_ROUTER_MC \
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"router_mc"
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#define DEVLINK_PRESTERA_TRAP_NAME_VRRP \
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"vrrp"
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#define DEVLINK_PRESTERA_TRAP_NAME_DHCP \
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"dhcp"
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#define DEVLINK_PRESTERA_TRAP_NAME_MAC_TO_ME \
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"mac_to_me"
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#define DEVLINK_PRESTERA_TRAP_NAME_IPV4_OPTIONS \
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"ipv4_options"
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#define DEVLINK_PRESTERA_TRAP_NAME_IP_DEFAULT_ROUTE \
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"ip_default_route"
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#define DEVLINK_PRESTERA_TRAP_NAME_IP_TO_ME \
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"ip_to_me"
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#define DEVLINK_PRESTERA_TRAP_NAME_IPV4_ICMP_REDIRECT \
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"ipv4_icmp_redirect"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_0 \
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"acl_code_0"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_1 \
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"acl_code_1"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_2 \
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"acl_code_2"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_3 \
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"acl_code_3"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_4 \
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"acl_code_4"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_5 \
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"acl_code_5"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_6 \
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"acl_code_6"
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#define DEVLINK_PRESTERA_TRAP_NAME_ACL_CODE_7 \
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"acl_code_7"
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#define DEVLINK_PRESTERA_TRAP_NAME_BGP \
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"bgp"
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#define DEVLINK_PRESTERA_TRAP_NAME_SSH \
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"ssh"
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#define DEVLINK_PRESTERA_TRAP_NAME_TELNET \
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"telnet"
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#define DEVLINK_PRESTERA_TRAP_NAME_ICMP \
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"icmp"
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#define DEVLINK_PRESTERA_TRAP_NAME_RXDMA_DROP \
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"rxdma_drop"
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#define DEVLINK_PRESTERA_TRAP_NAME_PORT_NO_VLAN \
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"port_no_vlan"
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#define DEVLINK_PRESTERA_TRAP_NAME_LOCAL_PORT \
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"local_port"
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#define DEVLINK_PRESTERA_TRAP_NAME_INVALID_SA \
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"invalid_sa"
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#define DEVLINK_PRESTERA_TRAP_NAME_ILLEGAL_IP_ADDR \
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"illegal_ip_addr"
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#define DEVLINK_PRESTERA_TRAP_NAME_ILLEGAL_IPV4_HDR \
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"illegal_ipv4_hdr"
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#define DEVLINK_PRESTERA_TRAP_NAME_IP_UC_DIP_DA_MISMATCH \
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"ip_uc_dip_da_mismatch"
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#define DEVLINK_PRESTERA_TRAP_NAME_IP_SIP_IS_ZERO \
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"ip_sip_is_zero"
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#define DEVLINK_PRESTERA_TRAP_NAME_MET_RED \
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"met_red"
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struct prestera_trap {
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struct devlink_trap trap;
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u8 cpu_code;
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};
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struct prestera_trap_item {
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enum devlink_trap_action action;
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void *trap_ctx;
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};
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struct prestera_trap_data {
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struct prestera_switch *sw;
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struct prestera_trap_item *trap_items_arr;
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u32 traps_count;
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};
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#define PRESTERA_TRAP_METADATA DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT
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#define PRESTERA_TRAP_CONTROL(_id, _group_id, _action) \
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DEVLINK_TRAP_GENERIC(CONTROL, _action, _id, \
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DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
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PRESTERA_TRAP_METADATA)
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#define PRESTERA_TRAP_DRIVER_CONTROL(_id, _group_id) \
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DEVLINK_TRAP_DRIVER(CONTROL, TRAP, DEVLINK_PRESTERA_TRAP_ID_##_id, \
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DEVLINK_PRESTERA_TRAP_NAME_##_id, \
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DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
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PRESTERA_TRAP_METADATA)
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#define PRESTERA_TRAP_EXCEPTION(_id, _group_id) \
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DEVLINK_TRAP_GENERIC(EXCEPTION, TRAP, _id, \
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DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
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PRESTERA_TRAP_METADATA)
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#define PRESTERA_TRAP_DRIVER_EXCEPTION(_id, _group_id) \
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DEVLINK_TRAP_DRIVER(EXCEPTION, TRAP, DEVLINK_PRESTERA_TRAP_ID_##_id, \
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DEVLINK_PRESTERA_TRAP_NAME_##_id, \
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DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
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PRESTERA_TRAP_METADATA)
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#define PRESTERA_TRAP_DRIVER_DROP(_id, _group_id) \
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DEVLINK_TRAP_DRIVER(DROP, DROP, DEVLINK_PRESTERA_TRAP_ID_##_id, \
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DEVLINK_PRESTERA_TRAP_NAME_##_id, \
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DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
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PRESTERA_TRAP_METADATA)
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static const struct devlink_trap_group prestera_trap_groups_arr[] = {
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/* No policer is associated with following groups (policerid == 0)*/
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DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 0),
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DEVLINK_TRAP_GROUP_GENERIC(L3_DROPS, 0),
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DEVLINK_TRAP_GROUP_GENERIC(L3_EXCEPTIONS, 0),
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DEVLINK_TRAP_GROUP_GENERIC(NEIGH_DISCOVERY, 0),
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DEVLINK_TRAP_GROUP_GENERIC(ACL_TRAP, 0),
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DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 0),
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DEVLINK_TRAP_GROUP_GENERIC(ACL_SAMPLE, 0),
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DEVLINK_TRAP_GROUP_GENERIC(OSPF, 0),
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DEVLINK_TRAP_GROUP_GENERIC(STP, 0),
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DEVLINK_TRAP_GROUP_GENERIC(LACP, 0),
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DEVLINK_TRAP_GROUP_GENERIC(LLDP, 0),
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DEVLINK_TRAP_GROUP_GENERIC(VRRP, 0),
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DEVLINK_TRAP_GROUP_GENERIC(DHCP, 0),
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DEVLINK_TRAP_GROUP_GENERIC(BGP, 0),
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DEVLINK_TRAP_GROUP_GENERIC(LOCAL_DELIVERY, 0),
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DEVLINK_TRAP_GROUP_GENERIC(BUFFER_DROPS, 0),
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};
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/* Initialize trap list, as well as associate CPU code with them. */
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static struct prestera_trap prestera_trap_items_arr[] = {
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ARP_BC, NEIGH_DISCOVERY),
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.cpu_code = 5,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(IS_IS, LOCAL_DELIVERY),
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.cpu_code = 13,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(OSPF, OSPF),
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.cpu_code = 16,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(IP_BC_MAC, LOCAL_DELIVERY),
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.cpu_code = 19,
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},
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{
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.trap = PRESTERA_TRAP_CONTROL(STP, STP, TRAP),
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.cpu_code = 26,
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},
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{
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.trap = PRESTERA_TRAP_CONTROL(LACP, LACP, TRAP),
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.cpu_code = 27,
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},
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{
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.trap = PRESTERA_TRAP_CONTROL(LLDP, LLDP, TRAP),
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.cpu_code = 28,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ROUTER_MC, LOCAL_DELIVERY),
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.cpu_code = 29,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(VRRP, VRRP),
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.cpu_code = 30,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(DHCP, DHCP),
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.cpu_code = 33,
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},
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{
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.trap = PRESTERA_TRAP_EXCEPTION(MTU_ERROR, L3_EXCEPTIONS),
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.cpu_code = 63,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(MAC_TO_ME, LOCAL_DELIVERY),
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.cpu_code = 65,
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},
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{
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.trap = PRESTERA_TRAP_EXCEPTION(TTL_ERROR, L3_EXCEPTIONS),
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.cpu_code = 133,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_EXCEPTION(IPV4_OPTIONS,
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L3_EXCEPTIONS),
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.cpu_code = 141,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(IP_DEFAULT_ROUTE,
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LOCAL_DELIVERY),
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.cpu_code = 160,
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},
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{
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.trap = PRESTERA_TRAP_CONTROL(LOCAL_ROUTE, LOCAL_DELIVERY,
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TRAP),
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.cpu_code = 161,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_EXCEPTION(IPV4_ICMP_REDIRECT,
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L3_EXCEPTIONS),
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.cpu_code = 180,
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},
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{
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.trap = PRESTERA_TRAP_CONTROL(ARP_RESPONSE, NEIGH_DISCOVERY,
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TRAP),
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.cpu_code = 188,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_0, ACL_TRAP),
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.cpu_code = 192,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_1, ACL_TRAP),
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.cpu_code = 193,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_2, ACL_TRAP),
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.cpu_code = 194,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_3, ACL_TRAP),
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.cpu_code = 195,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_4, ACL_TRAP),
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.cpu_code = 196,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_5, ACL_TRAP),
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.cpu_code = 197,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_6, ACL_TRAP),
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.cpu_code = 198,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ACL_CODE_7, ACL_TRAP),
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.cpu_code = 199,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(BGP, BGP),
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.cpu_code = 206,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(SSH, LOCAL_DELIVERY),
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.cpu_code = 207,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(TELNET, LOCAL_DELIVERY),
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.cpu_code = 208,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_CONTROL(ICMP, LOCAL_DELIVERY),
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.cpu_code = 209,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_DROP(RXDMA_DROP, BUFFER_DROPS),
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.cpu_code = 37,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_DROP(PORT_NO_VLAN, L2_DROPS),
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.cpu_code = 39,
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},
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{
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.trap = PRESTERA_TRAP_DRIVER_DROP(LOCAL_PORT, L2_DROPS),
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.cpu_code = 56,
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},
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||
|
|
{
|
||
|
|
.trap = PRESTERA_TRAP_DRIVER_DROP(INVALID_SA, L2_DROPS),
|
||
|
|
.cpu_code = 60,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.trap = PRESTERA_TRAP_DRIVER_DROP(ILLEGAL_IP_ADDR, L3_DROPS),
|
||
|
|
.cpu_code = 136,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.trap = PRESTERA_TRAP_DRIVER_DROP(ILLEGAL_IPV4_HDR, L3_DROPS),
|
||
|
|
.cpu_code = 137,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.trap = PRESTERA_TRAP_DRIVER_DROP(IP_UC_DIP_DA_MISMATCH,
|
||
|
|
L3_DROPS),
|
||
|
|
.cpu_code = 138,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.trap = PRESTERA_TRAP_DRIVER_DROP(IP_SIP_IS_ZERO, L3_DROPS),
|
||
|
|
.cpu_code = 145,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.trap = PRESTERA_TRAP_DRIVER_DROP(MET_RED, BUFFER_DROPS),
|
||
|
|
.cpu_code = 185,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int prestera_drop_counter_get(struct devlink *devlink,
|
||
|
|
const struct devlink_trap *trap,
|
||
|
|
u64 *p_drops);
|
||
|
|
|
||
|
|
static int prestera_dl_info_get(struct devlink *dl,
|
||
|
|
struct devlink_info_req *req,
|
||
|
|
struct netlink_ext_ack *extack)
|
||
|
|
{
|
||
|
|
struct prestera_switch *sw = devlink_priv(dl);
|
||
|
|
char buf[16];
|
||
|
|
|
||
|
|
snprintf(buf, sizeof(buf), "%d.%d.%d",
|
||
|
|
sw->dev->fw_rev.maj,
|
||
|
|
sw->dev->fw_rev.min,
|
||
|
|
sw->dev->fw_rev.sub);
|
||
|
|
|
||
|
|
return devlink_info_version_running_put(req,
|
||
|
|
DEVLINK_INFO_VERSION_GENERIC_FW,
|
||
|
|
buf);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int prestera_trap_init(struct devlink *devlink,
|
||
|
|
const struct devlink_trap *trap, void *trap_ctx);
|
||
|
|
|
||
|
|
static int prestera_trap_action_set(struct devlink *devlink,
|
||
|
|
const struct devlink_trap *trap,
|
||
|
|
enum devlink_trap_action action,
|
||
|
|
struct netlink_ext_ack *extack);
|
||
|
|
|
||
|
|
static const struct devlink_ops prestera_dl_ops = {
|
||
|
|
.info_get = prestera_dl_info_get,
|
||
|
|
.trap_init = prestera_trap_init,
|
||
|
|
.trap_action_set = prestera_trap_action_set,
|
||
|
|
.trap_drop_counter_get = prestera_drop_counter_get,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct prestera_switch *prestera_devlink_alloc(struct prestera_device *dev)
|
||
|
|
{
|
||
|
|
struct devlink *dl;
|
||
|
|
|
||
|
|
dl = devlink_alloc(&prestera_dl_ops, sizeof(struct prestera_switch),
|
||
|
|
dev->dev);
|
||
|
|
|
||
|
|
return devlink_priv(dl);
|
||
|
|
}
|
||
|
|
|
||
|
|
void prestera_devlink_free(struct prestera_switch *sw)
|
||
|
|
{
|
||
|
|
struct devlink *dl = priv_to_devlink(sw);
|
||
|
|
|
||
|
|
devlink_free(dl);
|
||
|
|
}
|
||
|
|
|
||
|
|
void prestera_devlink_register(struct prestera_switch *sw)
|
||
|
|
{
|
||
|
|
struct devlink *dl = priv_to_devlink(sw);
|
||
|
|
|
||
|
|
devlink_register(dl);
|
||
|
|
}
|
||
|
|
|
||
|
|
void prestera_devlink_unregister(struct prestera_switch *sw)
|
||
|
|
{
|
||
|
|
struct devlink *dl = priv_to_devlink(sw);
|
||
|
|
|
||
|
|
devlink_unregister(dl);
|
||
|
|
}
|
||
|
|
|
||
|
|
int prestera_devlink_port_register(struct prestera_port *port)
|
||
|
|
{
|
||
|
|
struct prestera_switch *sw = port->sw;
|
||
|
|
struct devlink *dl = priv_to_devlink(sw);
|
||
|
|
struct devlink_port_attrs attrs = {};
|
||
|
|
int err;
|
||
|
|
|
||
|
|
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
|
||
|
|
attrs.phys.port_number = port->fp_id;
|
||
|
|
attrs.switch_id.id_len = sizeof(sw->id);
|
||
|
|
memcpy(attrs.switch_id.id, &sw->id, attrs.switch_id.id_len);
|
||
|
|
|
||
|
|
devlink_port_attrs_set(&port->dl_port, &attrs);
|
||
|
|
|
||
|
|
err = devlink_port_register(dl, &port->dl_port, port->fp_id);
|
||
|
|
if (err) {
|
||
|
|
dev_err(prestera_dev(sw), "devlink_port_register failed: %d\n", err);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void prestera_devlink_port_unregister(struct prestera_port *port)
|
||
|
|
{
|
||
|
|
devlink_port_unregister(&port->dl_port);
|
||
|
|
}
|
||
|
|
|
||
|
|
int prestera_devlink_traps_register(struct prestera_switch *sw)
|
||
|
|
{
|
||
|
|
const u32 groups_count = ARRAY_SIZE(prestera_trap_groups_arr);
|
||
|
|
const u32 traps_count = ARRAY_SIZE(prestera_trap_items_arr);
|
||
|
|
struct devlink *devlink = priv_to_devlink(sw);
|
||
|
|
struct prestera_trap_data *trap_data;
|
||
|
|
struct prestera_trap *prestera_trap;
|
||
|
|
int err, i;
|
||
|
|
|
||
|
|
trap_data = kzalloc(sizeof(*trap_data), GFP_KERNEL);
|
||
|
|
if (!trap_data)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
trap_data->trap_items_arr = kcalloc(traps_count,
|
||
|
|
sizeof(struct prestera_trap_item),
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (!trap_data->trap_items_arr) {
|
||
|
|
err = -ENOMEM;
|
||
|
|
goto err_trap_items_alloc;
|
||
|
|
}
|
||
|
|
|
||
|
|
trap_data->sw = sw;
|
||
|
|
trap_data->traps_count = traps_count;
|
||
|
|
sw->trap_data = trap_data;
|
||
|
|
|
||
|
|
err = devlink_trap_groups_register(devlink, prestera_trap_groups_arr,
|
||
|
|
groups_count);
|
||
|
|
if (err)
|
||
|
|
goto err_groups_register;
|
||
|
|
|
||
|
|
for (i = 0; i < traps_count; i++) {
|
||
|
|
prestera_trap = &prestera_trap_items_arr[i];
|
||
|
|
err = devlink_traps_register(devlink, &prestera_trap->trap, 1,
|
||
|
|
sw);
|
||
|
|
if (err)
|
||
|
|
goto err_trap_register;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err_trap_register:
|
||
|
|
for (i--; i >= 0; i--) {
|
||
|
|
prestera_trap = &prestera_trap_items_arr[i];
|
||
|
|
devlink_traps_unregister(devlink, &prestera_trap->trap, 1);
|
||
|
|
}
|
||
|
|
devlink_trap_groups_unregister(devlink, prestera_trap_groups_arr,
|
||
|
|
groups_count);
|
||
|
|
err_groups_register:
|
||
|
|
kfree(trap_data->trap_items_arr);
|
||
|
|
err_trap_items_alloc:
|
||
|
|
kfree(trap_data);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct prestera_trap_item *
|
||
|
|
prestera_get_trap_item_by_cpu_code(struct prestera_switch *sw, u8 cpu_code)
|
||
|
|
{
|
||
|
|
struct prestera_trap_data *trap_data = sw->trap_data;
|
||
|
|
struct prestera_trap *prestera_trap;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < trap_data->traps_count; i++) {
|
||
|
|
prestera_trap = &prestera_trap_items_arr[i];
|
||
|
|
if (cpu_code == prestera_trap->cpu_code)
|
||
|
|
return &trap_data->trap_items_arr[i];
|
||
|
|
}
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
void prestera_devlink_trap_report(struct prestera_port *port,
|
||
|
|
struct sk_buff *skb, u8 cpu_code)
|
||
|
|
{
|
||
|
|
struct prestera_trap_item *trap_item;
|
||
|
|
struct devlink *devlink;
|
||
|
|
|
||
|
|
devlink = port->dl_port.devlink;
|
||
|
|
|
||
|
|
trap_item = prestera_get_trap_item_by_cpu_code(port->sw, cpu_code);
|
||
|
|
if (unlikely(!trap_item))
|
||
|
|
return;
|
||
|
|
|
||
|
|
devlink_trap_report(devlink, skb, trap_item->trap_ctx,
|
||
|
|
&port->dl_port, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct prestera_trap_item *
|
||
|
|
prestera_devlink_trap_item_lookup(struct prestera_switch *sw, u16 trap_id)
|
||
|
|
{
|
||
|
|
struct prestera_trap_data *trap_data = sw->trap_data;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < ARRAY_SIZE(prestera_trap_items_arr); i++) {
|
||
|
|
if (prestera_trap_items_arr[i].trap.id == trap_id)
|
||
|
|
return &trap_data->trap_items_arr[i];
|
||
|
|
}
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int prestera_trap_init(struct devlink *devlink,
|
||
|
|
const struct devlink_trap *trap, void *trap_ctx)
|
||
|
|
{
|
||
|
|
struct prestera_switch *sw = devlink_priv(devlink);
|
||
|
|
struct prestera_trap_item *trap_item;
|
||
|
|
|
||
|
|
trap_item = prestera_devlink_trap_item_lookup(sw, trap->id);
|
||
|
|
if (WARN_ON(!trap_item))
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
trap_item->trap_ctx = trap_ctx;
|
||
|
|
trap_item->action = trap->init_action;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int prestera_trap_action_set(struct devlink *devlink,
|
||
|
|
const struct devlink_trap *trap,
|
||
|
|
enum devlink_trap_action action,
|
||
|
|
struct netlink_ext_ack *extack)
|
||
|
|
{
|
||
|
|
/* Currently, driver does not support trap action altering */
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int prestera_drop_counter_get(struct devlink *devlink,
|
||
|
|
const struct devlink_trap *trap,
|
||
|
|
u64 *p_drops)
|
||
|
|
{
|
||
|
|
struct prestera_switch *sw = devlink_priv(devlink);
|
||
|
|
enum prestera_hw_cpu_code_cnt_t cpu_code_type =
|
||
|
|
PRESTERA_HW_CPU_CODE_CNT_TYPE_DROP;
|
||
|
|
struct prestera_trap *prestera_trap =
|
||
|
|
container_of(trap, struct prestera_trap, trap);
|
||
|
|
|
||
|
|
return prestera_hw_cpu_code_counters_get(sw, prestera_trap->cpu_code,
|
||
|
|
cpu_code_type, p_drops);
|
||
|
|
}
|
||
|
|
|
||
|
|
void prestera_devlink_traps_unregister(struct prestera_switch *sw)
|
||
|
|
{
|
||
|
|
struct prestera_trap_data *trap_data = sw->trap_data;
|
||
|
|
struct devlink *dl = priv_to_devlink(sw);
|
||
|
|
const struct devlink_trap *trap;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for (i = 0; i < ARRAY_SIZE(prestera_trap_items_arr); ++i) {
|
||
|
|
trap = &prestera_trap_items_arr[i].trap;
|
||
|
|
devlink_traps_unregister(dl, trap, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
devlink_trap_groups_unregister(dl, prestera_trap_groups_arr,
|
||
|
|
ARRAY_SIZE(prestera_trap_groups_arr));
|
||
|
|
kfree(trap_data->trap_items_arr);
|
||
|
|
kfree(trap_data);
|
||
|
|
}
|