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  1. 01 5月, 2010 1 次提交
  3. 27 4月, 2010 2 次提交
  5. 04 4月, 2010 1 次提交
    • J
      net: convert multicast list to list_head · 22bedad3
      由 Jiri Pirko 提交于 
      Converts the list and the core manipulating with it to be the same as uc_list.

+uses two functions for adding/removing mc address (normal and "global"
 variant) instead of a function parameter.
+removes dev_mcast.c completely.
+exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for
 manipulation with lists on a sandbox (used in bonding and 80211 drivers)
Signed-off-by: NJiri Pirko <jpirko@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      22bedad3
  7. 02 4月, 2010 2 次提交
  9. 30 3月, 2010 1 次提交
    • N
      r8169: offical fix for CVE-2009-4537 (overlength frame DMAs) · c0cd884a
      由 Neil Horman 提交于 
      Official patch to fix the r8169 frame length check error.

Based on this initial thread:
http://marc.info/?l=linux-netdev&m=126202972828626&w=1
This is the official patch to fix the frame length problems in the r8169
driver.  As noted in the previous thread, while this patch incurs a performance
hit on the driver, its possible to improve performance dynamically by updating
the mtu and rx_copybreak values at runtime to return performance to what it was
for those NICS which are unaffected by the ideosyncracy (if there are any).

Summary:

    A while back Eric submitted a patch for r8169 in which the proper
allocated frame size was written to RXMaxSize to prevent the NIC from dmaing too
much data.  This was done in commit fdd7b4c3.  A
long time prior to that however, Francois posted
126fa4b9, which expiclitly disabled the MaxSize
setting due to the fact that the hardware behaved in odd ways when overlong
frames were received on NIC's supported by this driver.  This was mentioned in a
security conference recently:
http://events.ccc.de/congress/2009/Fahrplan//events/3596.en.html

It seems that if we can't enable frame size filtering, then, as Eric correctly
noticed, we can find ourselves DMA-ing too much data to a buffer, causing
corruption.  As a result is seems that we are forced to allocate a frame which
is ready to handle a maximally sized receive.

This obviously has performance issues with it, so to mitigate that issue, this
patch does two things:

1) Raises the copybreak value to the frame allocation size, which should force
appropriately sized packets to get allocated on rx, rather than a full new 16k
buffer.

2) This patch only disables frame filtering initially (i.e., during the NIC
open), changing the MTU results in ring buffer allocation of a size in relation
to the new mtu (along with a warning indicating that this is dangerous).

Because of item (2), individuals who can't cope with the performance hit (or can
otherwise filter frames to prevent the bug), or who have hardware they are sure
is unaffected by this issue, can manually lower the copybreak and reset the mtu
such that performance is restored easily.
Signed-off-by: NNeil Horman <nhorman@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c0cd884a
  11. 28 3月, 2010 1 次提交
    • F
      r8169: fix broken register writes · 78f1cd02
      由 Francois Romieu 提交于 
      This is quite similar to b39fe41f
though said registers are not even documented as 64-bit registers
- as opposed to the initial TxDescStartAddress ones - but as single
bytes which must be combined into 32 bits at the MMIO read/write
level before being merged into a 64 bit logical entity.

Credits go to Ben Hutchings <ben@decadent.org.uk> for the MAR
registers (aka "multicast is broken for ages on ARM) and to
Timo Teräs <timo.teras@iki.fi> for the MAC registers.
Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      78f1cd02
  13. 27 3月, 2010 1 次提交
  15. 17 3月, 2010 1 次提交
  17. 04 3月, 2010 1 次提交
  19. 26 2月, 2010 1 次提交
  21. 20 2月, 2010 1 次提交
    • R
      r8169: enable 64-bit DMA by default for PCI Express devices (v2) · 35317688
      由 Robert Hancock 提交于 
      Currently use of 64-bit DMA is disabled in r8169 unless the user passes the
use_dac module option. This is reasonable for conventional PCI devices where
broken chipsets may not handle dual-address-cycle transfers properly for
32-bit slots and so this may not be safe. However, PCI Express should not have
this problem and not using 64-bit DMA results in DMA transfers needlessly using
the IOMMU or SWIOTLB. Set the use_dac module parameter to a new default value of
-1 which results in 64-bit DMA being enabled by default for PCI Express devices
only.
Signed-off-by: NRobert Hancock <hancockrwd@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      35317688
  23. 13 2月, 2010 2 次提交
  25. 08 1月, 2010 1 次提交
  27. 30 12月, 2009 1 次提交
  29. 16 12月, 2009 1 次提交
  31. 04 12月, 2009 1 次提交
  33. 30 11月, 2009 1 次提交
  35. 26 11月, 2009 1 次提交
  37. 14 11月, 2009 1 次提交
    • R
      r8169: Fix receive buffer length when MTU is between 1515 and 1536 · 8812304c
      由 Raimonds Cicans 提交于 
      In r8169 driver MTU is used to calculate receive buffer size.
Receive buffer size is used to configure hardware incoming packet filter.

For jumbo frames:
Receive buffer size = Max frame size = MTU + 14 (ethernet header) + 4
(vlan header) + 4 (ethernet checksum) = MTU + 22

Bug:
driver for all MTU up to 1536 use receive buffer size 1536

As you can see from formula, this mean all IP packets > 1536 - 22
(for vlan tagged, 1536 - 18 for not tagged) are dropped by hardware
filter.

Example:

host_good>  ifconfig eth0 mtu 1536
host_r8169> ifconfig eth0 mtu 1536
host_good>  ping host_r8169
Ok
host_good>  ping -s 1500 host_r8169
Fail
host_good>  ifconfig eth0 mtu 7000
host_r8169> ifconfig eth0 mtu 7000
host_good>  ping -s 1500 host_r8169
Ok

Bonus: got rid of magic number 8
Signed-off-by: NRaimonds Cicans <ray@apollo.lv>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8812304c
  39. 30 10月, 2009 1 次提交
  41. 24 10月, 2009 1 次提交
    • S
      r8169: fix Ethernet Hangup for RTL8110SC rev d · 05af2142
      由 Simon Wunderlich 提交于 
      The 8110SC rev d chip on our board shows a regression which the 8110SB chip
did not have. When inbound traffic is overflowing the receive descriptor queue,
"holes" in the ring buffer may occur which lead to a hangup until the buffer
is filled again. The packets are than completely processed, but the ring
remains porous and no packets are processed until the next overflow. Setting
the interface down and up can fix the problem temporary from userspace.

For some reason we don't know, this behaviour is not occuring if the RxVlan
bit for hardware VLAN untagging is set. There is another "Work around for
AMD plateform" in the current code which checks the VLAN status
word in receive descriptors, but does never come to effect when hardware
VLAN support is enabled. We assume that this is a bug in the chip.

The following patch fixes the problem. Without the patch we could reproduce
the hang within minutes (given other devices also generating lots of
interrupts), without we couldn't reproduce within a few days of long term
testing.

This version contains minor style adjustments and is sent with mutt which
will hopefully not destroy the formatting again.
Signed-off-by: NBernhard Schmidt <bernhard.schmidt@saxnet.de>
Signed-off-by: NSimon Wunderlich <simon.wunderlich@saxnet.de>
Acked-by: NFrancois Romieu <romieu@zoreil.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      05af2142
  43. 14 10月, 2009 2 次提交
  45. 07 9月, 2009 1 次提交
  47. 04 9月, 2009 1 次提交
  49. 01 9月, 2009 1 次提交
  51. 13 8月, 2009 6 次提交
  53. 27 7月, 2009 1 次提交
  55. 19 6月, 2009 1 次提交
  57. 18 6月, 2009 1 次提交
  59. 11 6月, 2009 1 次提交
  61. 09 6月, 2009 1 次提交