diff options
Diffstat (limited to 'include/net/netns/mctp.h')
| -rw-r--r-- | include/net/netns/mctp.h | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/include/net/netns/mctp.h b/include/net/netns/mctp.h index 1db8f9aaddb4..89555f90b97b 100644 --- a/include/net/netns/mctp.h +++ b/include/net/netns/mctp.h @@ -6,19 +6,25 @@ #ifndef __NETNS_MCTP_H__ #define __NETNS_MCTP_H__ +#include <linux/hash.h> +#include <linux/hashtable.h> #include <linux/mutex.h> #include <linux/types.h> +#define MCTP_BINDS_BITS 7 + struct netns_mctp { /* Only updated under RTNL, entries freed via RCU */ struct list_head routes; - /* Bound sockets: list of sockets bound by type. - * This list is updated from non-atomic contexts (under bind_lock), - * and read (under rcu) in packet rx + /* Bound sockets: hash table of sockets, keyed by + * (type, src_eid, dest_eid). + * Specific src_eid/dest_eid entries also have an entry for + * MCTP_ADDR_ANY. This list is updated from non-atomic contexts + * (under bind_lock), and read (under rcu) in packet rx. */ struct mutex bind_lock; - struct hlist_head binds; + DECLARE_HASHTABLE(binds, MCTP_BINDS_BITS); /* tag allocations. This list is read and updated from atomic contexts, * but elements are free()ed after a RCU grace-period @@ -34,4 +40,10 @@ struct netns_mctp { struct list_head neighbours; }; +static inline u32 mctp_bind_hash(u8 type, u8 local_addr, u8 peer_addr) +{ + return hash_32(type | (u32)local_addr << 8 | (u32)peer_addr << 16, + MCTP_BINDS_BITS); +} + #endif /* __NETNS_MCTP_H__ */ |