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mlxsw: spectrum: Add support for IPv6 traps

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Before we can start using IPv6, we need to trap certain control packets
to the CPU. Among others, these include Neighbour Discovery, DHCP and
neighbour misses.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arkadi Sharshevsky 2017-07-18 10:10:11 +02:00 committed by David S. Miller
parent e717e011ff
commit 8d54814e52
3 changed files with 53 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/ethernet/mellanox/mlxsw/reg.h
View File

@ -3679,16 +3679,17 @@ enum mlxsw_reg_htgt_trap_group {
MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP_IPV4,
MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF,
MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP_MISS,
MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS,
MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE,
MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME,
MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP,
MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT,
MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD,
MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND,
};
/* reg_htgt_trap_group

39
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@ -3345,12 +3345,35 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = {
MLXSW_SP_RXL_MARK(MTUERROR, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(TTLERROR, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(LBERROR, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(OSPF, TRAP_TO_CPU, OSPF, false),
MLXSW_SP_RXL_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false),
MLXSW_SP_RXL_MARK(IPV6_UNSPECIFIED_ADDRESS, TRAP_TO_CPU, ROUTER_EXP,
false),
MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_SRC, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, TRAP_TO_CPU, ROUTER_EXP,
false),
MLXSW_SP_RXL_MARK(IPV4_OSPF, TRAP_TO_CPU, OSPF, false),
MLXSW_SP_RXL_MARK(IPV6_OSPF, TRAP_TO_CPU, OSPF, false),
MLXSW_SP_RXL_MARK(IPV6_DHCP, TRAP_TO_CPU, DHCP, false),
MLXSW_SP_RXL_MARK(RTR_INGRESS0, TRAP_TO_CPU, REMOTE_ROUTE, false),
MLXSW_SP_RXL_MARK(HOST_MISS_IPV4, TRAP_TO_CPU, ARP_MISS, false),
MLXSW_SP_RXL_MARK(BGP_IPV4, TRAP_TO_CPU, BGP_IPV4, false),
MLXSW_SP_RXL_MARK(IPV4_BGP, TRAP_TO_CPU, BGP, false),
MLXSW_SP_RXL_MARK(IPV6_BGP, TRAP_TO_CPU, BGP, false),
MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, TRAP_TO_CPU, IPV6_ND,
false),
MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND,
false),
MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION, TRAP_TO_CPU, IPV6_ND,
false),
MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND,
false),
MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, TRAP_TO_CPU, IPV6_ND, false),
MLXSW_SP_RXL_MARK(IPV6_MC_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP,
false),
MLXSW_SP_RXL_MARK(HOST_MISS_IPV4, TRAP_TO_CPU, HOST_MISS, false),
MLXSW_SP_RXL_MARK(HOST_MISS_IPV6, TRAP_TO_CPU, HOST_MISS, false),
MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, TRAP_TO_CPU, ROUTER_EXP, false),
MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, ROUTER_EXP, false),
/* PKT Sample trap */
MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU,
false, SP_IP2ME, DISCARD),
@ -3389,12 +3412,13 @@ static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
rate = 16 * 1024;
burst_size = 10;
break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP_IPV4:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP_MISS:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND:
rate = 1024;
burst_size = 7;
break;
@ -3443,7 +3467,7 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
priority = 5;
tc = 5;
break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP_IPV4:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
priority = 4;
tc = 4;
@ -3455,10 +3479,11 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
tc = 3;
break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND:
priority = 2;
tc = 2;
break;
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP_MISS:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
priority = 1;

20
drivers/net/ethernet/mellanox/mlxsw/trap.h
View File

@ -61,16 +61,32 @@ enum {
MLXSW_TRAP_ID_MTUERROR = 0x52,
MLXSW_TRAP_ID_TTLERROR = 0x53,
MLXSW_TRAP_ID_LBERROR = 0x54,
MLXSW_TRAP_ID_OSPF = 0x55,
MLXSW_TRAP_ID_IPV4_OSPF = 0x55,
MLXSW_TRAP_ID_IP2ME = 0x5F,
MLXSW_TRAP_ID_IPV6_UNSPECIFIED_ADDRESS = 0x60,
MLXSW_TRAP_ID_IPV6_LINK_LOCAL_DEST = 0x61,
MLXSW_TRAP_ID_IPV6_LINK_LOCAL_SRC = 0x62,
MLXSW_TRAP_ID_IPV6_ALL_NODES_LINK = 0x63,
MLXSW_TRAP_ID_IPV6_OSPF = 0x64,
MLXSW_TRAP_ID_IPV6_MLDV12_LISTENER_QUERY = 0x65,
MLXSW_TRAP_ID_IPV6_MLDV1_LISTENER_REPORT = 0x66,
MLXSW_TRAP_ID_IPV6_MLDV1_LISTENER_DONE = 0x67,
MLXSW_TRAP_ID_IPV6_MLDV2_LISTENER_REPORT = 0x68,
MLXSW_TRAP_ID_IPV6_DHCP = 0x69,
MLXSW_TRAP_ID_IPV6_ALL_ROUTERS_LINK = 0x6F,
MLXSW_TRAP_ID_RTR_INGRESS0 = 0x70,
MLXSW_TRAP_ID_BGP_IPV4 = 0x88,
MLXSW_TRAP_ID_IPV4_BGP = 0x88,
MLXSW_TRAP_ID_IPV6_BGP = 0x89,
MLXSW_TRAP_ID_L3_IPV6_ROUTER_SOLICITATION = 0x8A,
MLXSW_TRAP_ID_L3_IPV6_ROUTER_ADVERTISMENT = 0x8B,
MLXSW_TRAP_ID_L3_IPV6_NEIGHBOR_SOLICITATION = 0x8C,
MLXSW_TRAP_ID_L3_IPV6_NEIGHBOR_ADVERTISMENT = 0x8D,
MLXSW_TRAP_ID_L3_IPV6_REDIRECTION = 0x8E,
MLXSW_TRAP_ID_HOST_MISS_IPV4 = 0x90,
MLXSW_TRAP_ID_IPV6_MC_LINK_LOCAL_DEST = 0x91,
MLXSW_TRAP_ID_HOST_MISS_IPV6 = 0x92,
MLXSW_TRAP_ID_ROUTER_ALERT_IPV4 = 0xD6,
MLXSW_TRAP_ID_ROUTER_ALERT_IPV6 = 0xD7,
MLXSW_TRAP_ID_ACL0 = 0x1C0,
MLXSW_TRAP_ID_MAX = 0x1FF