linux-stable/drivers/net/e1000
Jesse Brandeburg 81c5228514 e1000: fix loss of multicast packets
e1000 (and e1000e, igb, ixgbe, ixgb) all do a series of
operations each time a multicast address is added.  The flow goes
something like

1) stack adds one multicast address
2) stack passes whole current list of unicast and multicast
   addresses to driver
3) driver clears entire list in hardware
4) driver programs each multicast address using iomem in a loop

This was causing multicast packets to be lost during the
reprogramming process.

reference with test program:
http://kerneltrap.org/mailarchive/linux-netdev/2009/3/14/5160514/thread

Thanks to Dave Boutcher for his report and test program.

This driver fix prepares an array all at once in memory and
programs it in one shot to the hardware, not requiring an "erase"
cycle.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-04 16:36:53 -07:00
..
e1000.h e1000: drop lltx, remove unnecessary lock 2009-01-21 14:42:47 -08:00
e1000_ethtool.c e1000: Use device_set_wakeup_enable 2008-11-16 01:35:56 -08:00
e1000_hw.c trivial: fix then -> than typos in comments and documentation 2009-01-06 11:28:06 +01:00
e1000_hw.h e1000: convert uint16_t style integers to u16 2008-04-16 20:41:45 -04:00
e1000_main.c e1000: fix loss of multicast packets 2009-04-04 16:36:53 -07:00
e1000_osdep.h e1000: Remove spaces after casts and function names 2008-07-22 19:38:52 -04:00
e1000_param.c e1000: fix stack size 2008-08-27 13:56:27 -07:00
Makefile