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Ben Hutchings 5c97f6d487 Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 
[ Upstream commit 86c432ca5d ]

This reverts commits 65f0b417de,
d88d6b05fe,
fcfa060468,
747df2258b and
867955f568.

Depending on the processor model, write-combining may result in
reordering that the NIC will not tolerate.  This typically results
in a DMA error event and reset by the driver, logged as:

sfc 0000:0e:00.0: eth2: TX DMA Q reports TX_EV_PKT_ERR.
sfc 0000:0e:00.0: eth2: resetting (ALL)

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-03 11:40:53 -07:00
..
bitfield.h
efx.c Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 2011-10-03 11:40:53 -07:00
efx.h sfc: Don't use enums as a bitmask. 2011-05-17 17:53:22 -04:00
enum.h
ethtool.c sfc: Don't use enums as a bitmask. 2011-05-17 17:53:22 -04:00
falcon.c sfc: make function tables const 2011-04-14 21:53:42 -07:00
falcon_boards.c sfc: Update copyright dates 2011-02-28 23:57:24 +00:00
falcon_xmac.c sfc: make function tables const 2011-04-14 21:53:42 -07:00
filter.c sfc: Implement hardware acceleration of RFS 2011-02-17 21:00:33 +00:00
filter.h sfc: Generalise filter spec initialisation 2010-12-07 19:11:26 +00:00
io.h Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 2011-10-03 11:40:53 -07:00
Kconfig
mac.h sfc: make function tables const 2011-04-14 21:53:42 -07:00
Makefile sfc: Add support for SFE4003 board and TXC43128 PHY 2010-09-22 13:26:45 -07:00
mcdi.c Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 2011-10-03 11:40:53 -07:00
mcdi.h sfc: Update copyright dates 2011-02-28 23:57:24 +00:00
mcdi_mac.c sfc: make function tables const 2011-04-14 21:53:42 -07:00
mcdi_pcol.h Fix common misspellings 2011-03-31 11:26:23 -03:00
mcdi_phy.c ethtool: cosmetic: Use ethtool ethtool_cmd_speed API 2011-04-29 14:03:01 -07:00
mdio_10g.c sfc: Don't use enums as a bitmask. 2011-05-17 17:53:22 -04:00
mdio_10g.h sfc: Don't use enums as a bitmask. 2011-05-17 17:53:22 -04:00
mtd.c mtd: convert remaining users to mtd_device_register() 2011-05-25 02:25:00 +01:00
net_driver.h sfc: Don't use enums as a bitmask. 2011-05-17 17:53:22 -04:00
nic.c Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 2011-10-03 11:40:53 -07:00
nic.h Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 2011-10-03 11:40:53 -07:00
phy.h sfc: make function tables const 2011-04-14 21:53:42 -07:00
qt202x_phy.c sfc: make function tables const 2011-04-14 21:53:42 -07:00
regs.h sfc: Update copyright dates 2011-02-28 23:57:24 +00:00
rx.c Add appropriate <linux/prefetch.h> include for prefetch users 2011-05-22 21:41:57 -07:00
selftest.c sfc: Use netif_device_{detach,attach}() around reset and self-test 2011-05-16 23:34:28 +01:00
selftest.h sfc: Update copyright dates 2011-02-28 23:57:24 +00:00
siena.c Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 2011-10-03 11:40:53 -07:00
spi.h sfc: Update copyright dates 2011-02-28 23:57:24 +00:00
tenxpress.c ethtool: cosmetic: Use ethtool ethtool_cmd_speed API 2011-04-29 14:03:01 -07:00
tx.c sfc: Use netif_device_{detach,attach}() around reset and self-test 2011-05-16 23:34:28 +01:00
txc43128_phy.c sfc: make function tables const 2011-04-14 21:53:42 -07:00
workarounds.h Revert "sfc: Use write-combining to reduce TX latency" and follow-ups 2011-10-03 11:40:53 -07:00