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  1. 13 Jan, 2012 8 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 7c17d86a
      Linus Torvalds authored 
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits)
  pptp: Accept packet with seq zero
  RDS: Remove some unused iWARP code
  net: fsl: fec: handle 10Mbps speed in RMII mode
  drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c: add missing iounmap
  drivers/net/ethernet/tundra/tsi108_eth.c: add missing iounmap
  ksz884x: fix mtu for VLAN
  net_sched: sfq: add optional RED on top of SFQ
  dp83640: Fix NOHZ local_softirq_pending 08 warning
  gianfar: Fix invalid TX frames returned on error queue when time stamping
  gianfar: Fix missing sock reference when processing TX time stamps
  phylib: introduce mdiobus_alloc_size()
  net: decrement memcg jump label when limit, not usage, is changed
  net: reintroduce missing rcu_assign_pointer() calls
  inet_diag: Rename inet_diag_req_compat into inet_diag_req
  inet_diag: Rename inet_diag_req into inet_diag_req_v2
  bond_alb: don't disable softirq under bond_alb_xmit
  mac80211: fix rx->key NULL pointer dereference in promiscuous mode
  nl80211: fix old station flags compatibility
  mdio-octeon: use an unique MDIO bus name.
  mdio-gpio: use an unique MDIO bus name.
  ...
      7c17d86a
    • Bradley Peterson's avatar
      pptp: Accept packet with seq zero · 91dce7dd
      Bradley Peterson authored 
      Initialize the PPTP "seq received" value to 0xffffffff, so we don't
ignore packets with seq zero.
Signed-off-by: default avatarBradley Peterson <despite@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      91dce7dd
    • Roland Dreier's avatar
      RDS: Remove some unused iWARP code · 5b7bf42e
      Roland Dreier authored 
      rds_iw_flush_goal() just returns a count, but it is only called in one
place and its return value is ignored there.  So delete all the dead code.
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5b7bf42e
    • Eric Benard's avatar
      net: fsl: fec: handle 10Mbps speed in RMII mode · 8d82f219
      Eric Benard authored 
      when the link is 10 Mbps and the mode is RMII, it's necessary
to set FRCONT to 1 in MIIGSK_CFGR to divide the RMII source
clock by 10 in order to support 10 Mbps operations.
Signed-off-by: default avatarEric Bénard <eric@eukrea.com>
Acked-by: default avatarShawn Guo <shawn.guo@linaro.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8d82f219
    • Julia Lawall's avatar
      drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c: add missing iounmap · 25cecd7e
      Julia Lawall authored 
      Add missing iounmap in error handling code, in a case where the function
already preforms iounmap on some other execution path.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
statement S,S1;
int ret;
@@
e = \(ioremap\|ioremap_nocache\)(...)
... when != iounmap(e)
if (<+...e...+>) S
... when any
    when != iounmap(e)
*if (...)
   { ... when != iounmap(e)
     return ...; }
... when any
iounmap(e);
// </smpl>
Signed-off-by: default avatarJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      25cecd7e
    • Julia Lawall's avatar
      drivers/net/ethernet/tundra/tsi108_eth.c: add missing iounmap · 20d4369b
      Julia Lawall authored 
      Add missing iounmap in error handling code, in a case where the function
already preforms iounmap on some other execution path.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
statement S,S1;
int ret;
@@
e = \(ioremap\|ioremap_nocache\)(...)
... when != iounmap(e)
if (<+...e...+>) S
... when any
    when != iounmap(e)
*if (...)
   { ... when != iounmap(e)
     return ...; }
... when any
iounmap(e);
// </smpl>
Signed-off-by: default avatarJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      20d4369b
    • Doug Kehn's avatar
      ksz884x: fix mtu for VLAN · 83636580
      Doug Kehn authored 
      The Ethernet header does not account for the addition of a VLAN header.
Full size Ethernet frames containing VLAN header are not processed
because the frame is larger than the resulting hw mtu.
Signed-off-by: default avatarDoug Kehn <rdkehn@yahoo.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      83636580
    • Eric Dumazet's avatar
      net_sched: sfq: add optional RED on top of SFQ · ddecf0f4
      Eric Dumazet authored 
      Adds an optional Random Early Detection on each SFQ flow queue.

Traditional SFQ limits count of packets, while RED permits to also
control number of bytes per flow, and adds ECN capability as well.

1) We dont handle the idle time management in this RED implementation,
since each 'new flow' begins with a null qavg. We really want to address
backlogged flows.

2) if headdrop is selected, we try to ecn mark first packet instead of
currently enqueued packet. This gives faster feedback for tcp flows
compared to traditional RED [ marking the last packet in queue ]

Example of use :

tc qdisc add dev $DEV parent 1:1 handle 10: est 1sec 4sec sfq \
	limit 3000 headdrop flows 512 divisor 16384 \
	redflowlimit 100000 min 8000 max 60000 probability 0.20 ecn

qdisc sfq 10: parent 1:1 limit 3000p quantum 1514b depth 127 headdrop
flows 512/16384 divisor 16384
 ewma 6 min 8000b max 60000b probability 0.2 ecn
 prob_mark 0 prob_mark_head 4876 prob_drop 6131
 forced_mark 0 forced_mark_head 0 forced_drop 0
 Sent 1175211782 bytes 777537 pkt (dropped 6131, overlimits 11007
requeues 0)
 rate 99483Kbit 8219pps backlog 689392b 456p requeues 0

In this test, with 64 netperf TCP_STREAM sessions, 50% using ECN enabled
flows, we can see number of packets CE marked is smaller than number of
drops (for non ECN flows)

If same test is run, without RED, we can check backlog is much bigger.

qdisc sfq 10: parent 1:1 limit 3000p quantum 1514b depth 127 headdrop
flows 512/16384 divisor 16384
 Sent 1148683617 bytes 795006 pkt (dropped 0, overlimits 0 requeues 0)
 rate 98429Kbit 8521pps backlog 1221290b 841p requeues 0
Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
CC: Stephen Hemminger <shemminger@vyatta.com>
CC: Dave Taht <dave.taht@gmail.com>
Tested-by: default avatarDave Taht <dave.taht@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ddecf0f4
  3. 12 Jan, 2012 32 commits
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