diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/mctp.h | 11 | ||||
| -rw-r--r-- | include/trace/events/mctp.h | 5 | ||||
| -rw-r--r-- | include/uapi/linux/mctp.h | 18 |
3 files changed, 32 insertions, 2 deletions
diff --git a/include/net/mctp.h b/include/net/mctp.h index 706d329dd8e8..e80a4baf8379 100644 --- a/include/net/mctp.h +++ b/include/net/mctp.h @@ -126,7 +126,7 @@ struct mctp_sock { */ struct mctp_sk_key { mctp_eid_t peer_addr; - mctp_eid_t local_addr; + mctp_eid_t local_addr; /* MCTP_ADDR_ANY for local owned tags */ __u8 tag; /* incoming tag match; invert TO for local */ /* we hold a ref to sk when set */ @@ -163,6 +163,12 @@ struct mctp_sk_key { */ unsigned long dev_flow_state; struct mctp_dev *dev; + + /* a tag allocated with SIOCMCTPALLOCTAG ioctl will not expire + * automatically on timeout or response, instead SIOCMCTPDROPTAG + * is used. + */ + bool manual_alloc; }; struct mctp_skb_cb { @@ -239,6 +245,9 @@ int mctp_local_output(struct sock *sk, struct mctp_route *rt, struct sk_buff *skb, mctp_eid_t daddr, u8 req_tag); void mctp_key_unref(struct mctp_sk_key *key); +struct mctp_sk_key *mctp_alloc_local_tag(struct mctp_sock *msk, + mctp_eid_t daddr, mctp_eid_t saddr, + bool manual, u8 *tagp); /* routing <--> device interface */ unsigned int mctp_default_net(struct net *net); diff --git a/include/trace/events/mctp.h b/include/trace/events/mctp.h index 175b057c507f..165cf25f77a7 100644 --- a/include/trace/events/mctp.h +++ b/include/trace/events/mctp.h @@ -15,6 +15,7 @@ enum { MCTP_TRACE_KEY_REPLIED, MCTP_TRACE_KEY_INVALIDATED, MCTP_TRACE_KEY_CLOSED, + MCTP_TRACE_KEY_DROPPED, }; #endif /* __TRACE_MCTP_ENUMS */ @@ -22,6 +23,7 @@ TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_TIMEOUT); TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_REPLIED); TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_INVALIDATED); TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_CLOSED); +TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_DROPPED); TRACE_EVENT(mctp_key_acquire, TP_PROTO(const struct mctp_sk_key *key), @@ -66,7 +68,8 @@ TRACE_EVENT(mctp_key_release, { MCTP_TRACE_KEY_TIMEOUT, "timeout" }, { MCTP_TRACE_KEY_REPLIED, "replied" }, { MCTP_TRACE_KEY_INVALIDATED, "invalidated" }, - { MCTP_TRACE_KEY_CLOSED, "closed" }) + { MCTP_TRACE_KEY_CLOSED, "closed" }, + { MCTP_TRACE_KEY_DROPPED, "dropped" }) ) ); diff --git a/include/uapi/linux/mctp.h b/include/uapi/linux/mctp.h index 07b0318716fc..154ab56651f1 100644 --- a/include/uapi/linux/mctp.h +++ b/include/uapi/linux/mctp.h @@ -44,7 +44,25 @@ struct sockaddr_mctp_ext { #define MCTP_TAG_MASK 0x07 #define MCTP_TAG_OWNER 0x08 +#define MCTP_TAG_PREALLOC 0x10 #define MCTP_OPT_ADDR_EXT 1 +#define SIOCMCTPALLOCTAG (SIOCPROTOPRIVATE + 0) +#define SIOCMCTPDROPTAG (SIOCPROTOPRIVATE + 1) + +struct mctp_ioc_tag_ctl { + mctp_eid_t peer_addr; + + /* For SIOCMCTPALLOCTAG: must be passed as zero, kernel will + * populate with the allocated tag value. Returned tag value will + * always have TO and PREALLOC set. + * + * For SIOCMCTPDROPTAG: userspace provides tag value to drop, from + * a prior SIOCMCTPALLOCTAG call (and so must have TO and PREALLOC set). + */ + __u8 tag; + __u16 flags; +}; + #endif /* __UAPI_MCTP_H */ |