linux/drivers/net/e1000
Jesse Brandeburg 945a51517c intel drivers: repair missing flush operations
after review of all intel drivers, found several instances where
drivers had the incorrect pattern of:
memory mapped write();
delay();

which should always be:
memory mapped write();
write flush(); /* aka memory mapped read */
delay();

explanation:
The reason for including the flush is that writes can be held
(posted) in PCI/PCIe bridges, but the read always has to complete
synchronously and therefore has to flush all pending writes to a
device.  If a write is held and followed by a delay, the delay
means nothing because the write may not have reached hardware
(maybe even not until the next read)

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by:  Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-04 04:59:07 -07:00
..
e1000_ethtool.c intel drivers: repair missing flush operations 2011-08-04 04:59:07 -07:00
e1000_hw.c intel drivers: repair missing flush operations 2011-08-04 04:59:07 -07:00
e1000_hw.h Fix common misspellings 2011-03-31 11:26:23 -03:00
e1000_main.c e1000: always call e1000_check_for_link() on e1000_ce4100 MACs. 2011-07-21 22:53:41 -07:00
e1000_osdep.h e1000: fix sparse warning 2011-03-02 03:20:56 -08:00
e1000_param.c Intel Wired LAN drivers: Use static const 2010-12-10 22:12:32 -08:00
e1000.h e1000: do vlan cleanup 2011-07-21 13:47:57 -07:00
Makefile