From ded6f77c05b113001d449cf2cc810e090f20ec4a Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Sat, 16 Dec 2023 13:30:01 +0100 Subject: devlink: extend multicast filtering by port index Expose the previously introduced notification multicast messages filtering infrastructure and allow the user to select messages using port index. Signed-off-by: Jiri Pirko Signed-off-by: Paolo Abeni --- net/devlink/devl_internal.h | 9 +++++++++ net/devlink/health.c | 6 +++++- net/devlink/netlink.c | 10 +++++++++- net/devlink/netlink_gen.c | 5 +++-- net/devlink/port.c | 5 ++++- 5 files changed, 30 insertions(+), 5 deletions(-) (limited to 'net/devlink') diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h index 82e0fb3bbebf..c7a8e13f917c 100644 --- a/net/devlink/devl_internal.h +++ b/net/devlink/devl_internal.h @@ -195,6 +195,8 @@ struct devlink_obj_desc { struct rcu_head rcu; const char *bus_name; const char *dev_name; + unsigned int port_index; + bool port_index_valid; long data[]; }; @@ -206,6 +208,13 @@ static inline void devlink_nl_obj_desc_init(struct devlink_obj_desc *desc, desc->dev_name = dev_name(devlink->dev); } +static inline void devlink_nl_obj_desc_port_set(struct devlink_obj_desc *desc, + struct devlink_port *devlink_port) +{ + desc->port_index = devlink_port->index; + desc->port_index_valid = true; +} + int devlink_nl_notify_filter(struct sock *dsk, struct sk_buff *skb, void *data); static inline void devlink_nl_notify_send_desc(struct devlink *devlink, diff --git a/net/devlink/health.c b/net/devlink/health.c index 1d59ec0202f6..acb8c0e174bb 100644 --- a/net/devlink/health.c +++ b/net/devlink/health.c @@ -490,6 +490,7 @@ static void devlink_recover_notify(struct devlink_health_reporter *reporter, enum devlink_command cmd) { struct devlink *devlink = reporter->devlink; + struct devlink_obj_desc desc; struct sk_buff *msg; int err; @@ -509,7 +510,10 @@ static void devlink_recover_notify(struct devlink_health_reporter *reporter, return; } - devlink_nl_notify_send(devlink, msg); + devlink_nl_obj_desc_init(&desc, devlink); + if (reporter->devlink_port) + devlink_nl_obj_desc_port_set(&desc, reporter->devlink_port); + devlink_nl_notify_send_desc(devlink, msg, &desc); } void diff --git a/net/devlink/netlink.c b/net/devlink/netlink.c index 3176be2585cb..499885c8b9ca 100644 --- a/net/devlink/netlink.c +++ b/net/devlink/netlink.c @@ -73,8 +73,13 @@ int devlink_nl_notify_filter_set_doit(struct sk_buff *skb, flt->dev_name = pos; } + if (attrs[DEVLINK_ATTR_PORT_INDEX]) { + flt->port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); + flt->port_index_valid = true; + } + /* Don't attach empty filter. */ - if (!flt->bus_name && !flt->dev_name) { + if (!flt->bus_name && !flt->dev_name && !flt->port_index_valid) { kfree(flt); flt = NULL; } @@ -101,6 +106,9 @@ static bool devlink_obj_desc_match(const struct devlink_obj_desc *desc, if (desc->dev_name && flt->dev_name && strcmp(desc->dev_name, flt->dev_name)) return false; + if (desc->port_index_valid && flt->port_index_valid && + desc->port_index != flt->port_index) + return false; return true; } diff --git a/net/devlink/netlink_gen.c b/net/devlink/netlink_gen.c index 1cb0e05305d2..c81cf2dd154f 100644 --- a/net/devlink/netlink_gen.c +++ b/net/devlink/netlink_gen.c @@ -561,9 +561,10 @@ static const struct nla_policy devlink_selftests_run_nl_policy[DEVLINK_ATTR_SELF }; /* DEVLINK_CMD_NOTIFY_FILTER_SET - do */ -static const struct nla_policy devlink_notify_filter_set_nl_policy[DEVLINK_ATTR_DEV_NAME + 1] = { +static const struct nla_policy devlink_notify_filter_set_nl_policy[DEVLINK_ATTR_PORT_INDEX + 1] = { [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING, }, [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING, }, + [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32, }, }; /* Ops table for devlink */ @@ -1243,7 +1244,7 @@ const struct genl_split_ops devlink_nl_ops[74] = { .cmd = DEVLINK_CMD_NOTIFY_FILTER_SET, .doit = devlink_nl_notify_filter_set_doit, .policy = devlink_notify_filter_set_nl_policy, - .maxattr = DEVLINK_ATTR_DEV_NAME, + .maxattr = DEVLINK_ATTR_PORT_INDEX, .flags = GENL_CMD_CAP_DO, }, }; diff --git a/net/devlink/port.c b/net/devlink/port.c index 758df3000a1b..62e54e152ecf 100644 --- a/net/devlink/port.c +++ b/net/devlink/port.c @@ -507,6 +507,7 @@ static void devlink_port_notify(struct devlink_port *devlink_port, enum devlink_command cmd) { struct devlink *devlink = devlink_port->devlink; + struct devlink_obj_desc desc; struct sk_buff *msg; int err; @@ -525,7 +526,9 @@ static void devlink_port_notify(struct devlink_port *devlink_port, return; } - devlink_nl_notify_send(devlink, msg); + devlink_nl_obj_desc_init(&desc, devlink); + devlink_nl_obj_desc_port_set(&desc, devlink_port); + devlink_nl_notify_send_desc(devlink, msg, &desc); } static void devlink_ports_notify(struct devlink *devlink, -- cgit v1.2.3-70-g09d2