diff options
Diffstat (limited to 'net/core/devlink.c')
| -rw-r--r-- | net/core/devlink.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index 933e8d4d3968..1b5063088f1a 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -26,6 +26,10 @@ #include <net/net_namespace.h> #include <net/sock.h> #include <net/devlink.h> +#define CREATE_TRACE_POINTS +#include <trace/events/devlink.h> + +EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); static LIST_HEAD(devlink_list); @@ -1394,6 +1398,78 @@ static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, return -EOPNOTSUPP; } +static int devlink_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, + enum devlink_command cmd, u32 portid, + u32 seq, int flags, u16 mode) +{ + void *hdr; + + hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); + if (!hdr) + return -EMSGSIZE; + + if (devlink_nl_put_handle(msg, devlink)) + goto nla_put_failure; + + if (nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int devlink_nl_cmd_eswitch_mode_get_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink *devlink = info->user_ptr[0]; + const struct devlink_ops *ops = devlink->ops; + struct sk_buff *msg; + u16 mode; + int err; + + if (!ops || !ops->eswitch_mode_get) + return -EOPNOTSUPP; + + err = ops->eswitch_mode_get(devlink, &mode); + if (err) + return err; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + err = devlink_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_MODE_GET, + info->snd_portid, info->snd_seq, 0, mode); + + if (err) { + nlmsg_free(msg); + return err; + } + + return genlmsg_reply(msg, info); +} + +static int devlink_nl_cmd_eswitch_mode_set_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct devlink *devlink = info->user_ptr[0]; + const struct devlink_ops *ops = devlink->ops; + u16 mode; + + if (!info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) + return -EINVAL; + + mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); + + if (ops && ops->eswitch_mode_set) + return ops->eswitch_mode_set(devlink, mode); + return -EOPNOTSUPP; +} + static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, @@ -1407,6 +1483,7 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, + [DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 }, }; static const struct genl_ops devlink_nl_ops[] = { @@ -1525,6 +1602,20 @@ static const struct genl_ops devlink_nl_ops[] = { DEVLINK_NL_FLAG_NEED_SB | DEVLINK_NL_FLAG_LOCK_PORTS, }, + { + .cmd = DEVLINK_CMD_ESWITCH_MODE_GET, + .doit = devlink_nl_cmd_eswitch_mode_get_doit, + .policy = devlink_nl_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, + }, + { + .cmd = DEVLINK_CMD_ESWITCH_MODE_SET, + .doit = devlink_nl_cmd_eswitch_mode_set_doit, + .policy = devlink_nl_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, + }, }; /** |