Revision 22e1170310ec6afa41e0dc7ac9dfac735d82dcab authored by Stephen Hemminger on 12 July 2006, 22:23:48 UTC, committed by Jeff Garzik on 12 July 2006, 22:39:22 UTC
When the driver handles multiple packets per NAPI poll, it is better to reload the receive ring, then tell the hardware. Otherwise, under packet storm with flow control, the driver/hardware will degrade down to one packet getting through per pause-exchange. Likewise on transmit, don't wakeup until a little more than minimum ring space is available. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
1 parent afa195d
scsicam.h
/*
* scsicam.h - SCSI CAM support functions, use for HDIO_GETGEO, etc.
*
* Copyright 1993, 1994 Drew Eckhardt
* Visionary Computing
* (Unix and Linux consulting and custom programming)
* drew@Colorado.EDU
* +1 (303) 786-7975
*
* For more information, please consult the SCSI-CAM draft.
*/
#ifndef SCSICAM_H
#define SCSICAM_H
extern int scsicam_bios_param (struct block_device *bdev, sector_t capacity, int *ip);
extern int scsi_partsize(unsigned char *buf, unsigned long capacity,
unsigned int *cyls, unsigned int *hds, unsigned int *secs);
extern unsigned char *scsi_bios_ptable(struct block_device *bdev);
#endif /* def SCSICAM_H */
Computing file changes ...
