sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-27 10:02:42 +03:00
Code Issues Packages Projects Releases Wiki Activity

[tcpip] Allow for architecture-specific TCP/IP checksum routines

Browse Source 
Calculating the TCP/IP checksum on received packets accounts for a
substantial fraction of the response latency.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2012-06-27 12:02:58 +01:00
parent 6a4ff519c8
commit 1d77d03216
3 changed files with 24 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/include/ipxe/tcpip.h
View File

@@ -13,6 +13,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <ipxe/socket.h>
#include <ipxe/in.h>
#include <ipxe/tables.h>
#include <bits/tcpip.h>
struct io_buffer;
struct net_device;
@@ -121,8 +122,15 @@ extern int tcpip_tx ( struct io_buffer *iobuf, struct tcpip_protocol *tcpip,
struct sockaddr_tcpip *st_dest,
struct net_device *netdev,
uint16_t *trans_csum );
extern uint16_t tcpip_continue_chksum ( uint16_t partial,
const void *data, size_t len );
extern uint16_t generic_tcpip_continue_chksum ( uint16_t partial,
const void *data, size_t len );
extern uint16_t tcpip_chksum ( const void *data, size_t len );
/* Use generic_tcpip_continue_chksum() if no architecture-specific
* version is available
*/
#ifndef tcpip_continue_chksum
#define tcpip_continue_chksum generic_tcpip_continue_chksum
#endif
#endif /* _IPXE_TCPIP_H */