[PATCHv4 iproute2-next] bond: add arp_missed_max option
From: Hangbin Liu <hidden>
Date: 2021-11-30 04:30:05
Subsystem:
the rest · Maintainer:
Linus Torvalds
Bond arp_missed_max is the maximum number of arp_interval monitor cycle for missed ARP replies. If this number is exceeded, link is reported as down. Signed-off-by: Hangbin Liu <redacted> --- v2: use u8 for missed_max v3: rename the option name to arp_missed_max v4: no update, only kernel patch changed --- ip/iplink_bond.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/ip/iplink_bond.c b/ip/iplink_bond.c
index 59c9e36d..2bfdf82f 100644
--- a/ip/iplink_bond.c
+++ b/ip/iplink_bond.c@@ -153,6 +153,7 @@ static void print_explain(FILE *f) " [ ad_user_port_key PORTKEY ]\n" " [ ad_actor_sys_prio SYSPRIO ]\n" " [ ad_actor_system LLADDR ]\n" + " [ arp_missed_max MISSED_MAX ]\n" "\n" "BONDMODE := balance-rr|active-backup|balance-xor|broadcast|802.3ad|balance-tlb|balance-alb\n" "ARP_VALIDATE := none|active|backup|all|filter|filter_active|filter_backup\n"
@@ -181,6 +182,7 @@ static int bond_parse_opt(struct link_util *lu, int argc, char **argv, __u32 miimon, updelay, downdelay, peer_notify_delay, arp_interval, arp_validate; __u32 arp_all_targets, resend_igmp, min_links, lp_interval; __u32 packets_per_slave; + __u8 missed_max; unsigned int ifindex; while (argc > 0) {
@@ -258,6 +260,12 @@ static int bond_parse_opt(struct link_util *lu, int argc, char **argv, invarg("invalid arp_all_targets", *argv); arp_all_targets = get_index(arp_all_targets_tbl, *argv); addattr32(n, 1024, IFLA_BOND_ARP_ALL_TARGETS, arp_all_targets); + } else if (strcmp(*argv, "arp_missed_max") == 0) { + NEXT_ARG(); + if (get_u8(&missed_max, *argv, 0)) + invarg("invalid arp_missed_max", *argv); + + addattr8(n, 1024, IFLA_BOND_MISSED_MAX, missed_max); } else if (matches(*argv, "primary") == 0) { NEXT_ARG(); ifindex = ll_name_to_index(*argv);
@@ -453,6 +461,12 @@ static void bond_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) "arp_interval %u ", rta_getattr_u32(tb[IFLA_BOND_ARP_INTERVAL])); + if (tb[IFLA_BOND_MISSED_MAX]) + print_uint(PRINT_ANY, + "arp_missed_max", + "arp_missed_max %u ", + rta_getattr_u8(tb[IFLA_BOND_MISSED_MAX])); + if (tb[IFLA_BOND_ARP_IP_TARGET]) { struct rtattr *iptb[BOND_MAX_ARP_TARGETS + 1]; int i;
--
2.31.1