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tipc: Hide media-specific addressing details from generic bearer code

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Reworks TIPC's media address data structure and associated processing
routines to transfer all media-specific details of address conversion
to the associated TIPC media adaptation code. TIPC's generic bearer code
now only needs to know which media type an address is associated with
and whether or not it is a broadcast address, and totally ignores the
"value" field that contains the actual media-specific addressing info.

These changes eliminate the need for a number of endianness conversion
operations and will make it easier for TIPC to support new media types
in the future.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
This commit is contained in:
Allan Stephens
2011-10-07 15:19:11 -04:00
committed by Paul Gortmaker
parent 4d163a326f
commit 3d749a6a26
6 changed files with 41 additions and 41 deletions
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17
net/tipc/bearer.h
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@ -59,17 +59,16 @@
#define TIPC_MEDIA_TYPE_ETH 1
/*
* Destination address structure used by TIPC bearers when sending messages
*
* IMPORTANT: The fields of this structure MUST be stored using the specified
* byte order indicated below, as the structure is exchanged between nodes
* as part of a link setup process.
* struct tipc_media_addr - destination address used by TIPC bearers
* @value: address info (format defined by media)
* @media_id: TIPC media type identifier
* @broadcast: non-zero if address is a broadcast address
*/
struct tipc_media_addr {
__be32 type; /* bearer type (network byte order) */
union {
__u8 eth_addr[6]; /* 48 bit Ethernet addr (byte array) */
} dev_addr;
u8 value[TIPC_MEDIA_ADDR_SIZE];
u8 media_id;
u8 broadcast;
};
struct tipc_bearer;