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13 years agoinet: Allowing more than 64k connections and heavily optimize bind(0) time.
Evgeniy Polyakov [Tue, 20 Jan 2009 00:46:02 +0000 (16:46 -0800)]
inet: Allowing more than 64k connections and heavily optimize bind(0) time.

With simple extension to the binding mechanism, which allows to bind more
than 64k sockets (or smaller amount, depending on sysctl parameters),
we have to traverse the whole bind hash table to find out empty bucket.
And while it is not a problem for example for 32k connections, bind()
completion time grows exponentially (since after each successful binding
we have to traverse one bucket more to find empty one) even if we start
each time from random offset inside the hash table.

So, when hash table is full, and we want to add another socket, we have
to traverse the whole table no matter what, so effectivelly this will be
the worst case performance and it will be constant.

Attached picture shows bind() time depending on number of already bound
sockets.

Green area corresponds to the usual binding to zero port process, which
turns on kernel port selection as described above. Red area is the bind
process, when number of reuse-bound sockets is not limited by 64k (or
sysctl parameters). The same exponential growth (hidden by the green
area) before number of ports reaches sysctl limit.

At this time bind hash table has exactly one reuse-enbaled socket in a
bucket, but it is possible that they have different addresses. Actually
kernel selects the first port to try randomly, so at the beginning bind
will take roughly constant time, but with time number of port to check
after random start will increase. And that will have exponential growth,
but because of above random selection, not every next port selection
will necessary take longer time than previous. So we have to consider
the area below in the graph (if you could zoom it, you could find, that
there are many different times placed there), so area can hide another.

Blue area corresponds to the port selection optimization.

This is rather simple design approach: hashtable now maintains (unprecise
and racely updated) number of currently bound sockets, and when number
of such sockets becomes greater than predefined value (I use maximum
port range defined by sysctls), we stop traversing the whole bind hash
table and just stop at first matching bucket after random start. Above
limit roughly corresponds to the case, when bind hash table is full and
we turned on mechanism of allowing to bind more reuse-enabled sockets,
so it does not change behaviour of other sockets.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Tested-by: Denys Fedoryschenko <denys@visp.net.lb>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoigb: Replace LRO with GRO
Herbert Xu [Mon, 19 Jan 2009 23:20:57 +0000 (15:20 -0800)]
igb: Replace LRO with GRO

This patch makes igb invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

Three things of note:

1) I've kept the LRO Kconfig option until we decide to enable
GRO across the board at which point it can also be killed.

2) The poll_controller stuff is broken in igb as it tries to do
the same work as the normal poll routine.  Since poll_controller
can be called in the middle of a poll, this can't be good.

I noticed this because poll_controller can invoke the GRO hooks
without flushing held GRO packets.

However, this should be harmless (assuming the poll_controller
bug above doesn't kill you first :) since the next ->poll will
clear the backlog.  The only time when we'll have a problem is
if we're already executing the GRO code on the same ring, but
that's no worse than what happens now.

3) I kept the ip_summed check before calling GRO so that we're
on par with previous behaviour.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotyphoon: replace users of __constant_{endian}
Harvey Harrison [Mon, 19 Jan 2009 06:03:01 +0000 (22:03 -0800)]
typhoon: replace users of __constant_{endian}

The base versions handle constant folding just fine, use them
directly.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: David Dillow <dave@thedillows.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosfc: Replace LRO with GRO
Herbert Xu [Mon, 19 Jan 2009 05:50:16 +0000 (21:50 -0800)]
sfc: Replace LRO with GRO

This patch makes sfc invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

Everything should appear identical to the user except that the
offload is now controlled by the GRO ethtool option instead of
LRO.  I've kept the lro module parameter as is since that's for
compatibility only.

I have eliminated efx_rx_mk_skb as the GRO layer can take care
of all packets regardless of whether GRO is enabled or not.

So the only case where we don't call GRO is if the packet checksum
is absent.  This is to keep the behaviour changes of the patch to
a minimum.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgbe: Replace LRO with GRO
Herbert Xu [Mon, 19 Jan 2009 05:49:45 +0000 (21:49 -0800)]
ixgbe: Replace LRO with GRO

This patch makes ixgbe invoke the GRO hooks instead of LRO.  As
GRO has a compatible external interface to LRO this is a very
straightforward replacement.

As GRO uses the napi structure to track the held packets, I've
modified the code paths involved to pass that along.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodccp: Debugging functions for feature negotiation
Gerrit Renker [Fri, 16 Jan 2009 23:36:33 +0000 (23:36 +0000)]
dccp: Debugging functions for feature negotiation

Since all feature-negotiation processing now takes place in feat.c,
functions for producing verbose debugging output are concentrated
there.

New functions to print out values, entry records, and options are
provided, and also a macro is defined to not always have the function
name in the output line.

Thanks a lot to Wei Yongjun and Giuseppe Galeota for help and
discussion with an earlier revision of this patch.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodccp: Initialisation and type-checking of feature sysctls
Gerrit Renker [Fri, 16 Jan 2009 23:36:32 +0000 (23:36 +0000)]
dccp: Initialisation and type-checking of feature sysctls

This patch takes care of initialising and type-checking sysctls
related to feature negotiation. Type checking is important since some
of the sysctls now directly impact the feature-negotiation process.

The sysctls are initialised with the known default values for each
feature.  For the type-checking the value constraints from RFC 4340
are used:

 * Sequence Window uses the specified Wmin=32, the maximum is ulong (4 bytes),
   tested and confirmed that it works up to 4294967295 - for Gbps speed;
 * Ack Ratio is between 0 .. 0xffff (2-byte unsigned integer);
 * CCIDs are between 0 .. 255;
 * request_retries, retries1, retries2 also between 0..255 for good measure;
 * tx_qlen is checked to be non-negative;
 * sync_ratelimit remains as before.

Notes:
------
 1. Die s@sysctl_dccp_feat@sysctl_dccp@g since the sysctls are now in feat.c.
 2. As pointed out by Arnaldo, the pattern of type-checking repeats itself in
    other places, sometimes with exactly the same kind of definitions (e.g.
    "static int zero;"). It may be a good idea (kernel janitors?) to consolidate
    type checking. For the sake of keeping the changeset small and in order not
    to affect other subsystems, I have not strived to generalise here.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodccp: Implement both feature-local and feature-remote Sequence Window feature
Gerrit Renker [Fri, 16 Jan 2009 23:36:31 +0000 (23:36 +0000)]
dccp: Implement both feature-local and feature-remote Sequence Window feature

This adds full support for local/remote Sequence Window feature, from which the
  * sequence-number-validity (W) and
  * acknowledgment-number-validity (W') windows
derive as specified in RFC 4340, 7.5.3.

Specifically, the following is contained in this patch:
  * integrated new socket fields into dccp_sk;
  * updated the update_gsr/gss routines with regard to these fields;
  * updated handler code: the Sequence Window feature is located at the TX side,
    so the local feature is meant if the handler-rx flag is false;
  * the initialisation of `rcv_wnd' in reqsk is removed, since
    - rcv_wnd is not used by the code anywhere;
    - sequence number checks are not done in the LISTEN state (cf. 7.5.3);
    - dccp_check_req checks the Ack number validity more rigorously;
  * the `struct dccp_minisock' became empty and is now removed.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodccp: Initialisation framework for feature negotiation
Gerrit Renker [Fri, 16 Jan 2009 23:36:30 +0000 (23:36 +0000)]
dccp: Initialisation framework for feature negotiation

This initialises feature negotiation from two tables, which are in
turn are initialised from sysctls.

As a novel feature, specifics of the implementation (e.g. that short
seqnos and ECN are not yet available) are advertised for robustness.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agocxgb3: ease msi-x settings conditions
Divy Le Ray [Mon, 19 Jan 2009 05:29:40 +0000 (21:29 -0800)]
cxgb3: ease msi-x settings conditions

The driver currently drops to line interrupt mode
if it did not get all the msi-x vectors it requested.

Allow msi-x settings when a minimal amount of vectors
is provided.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoe1000e: Invoke VLAN GRO handler
Herbert Xu [Thu, 15 Jan 2009 04:37:59 +0000 (20:37 -0800)]
e1000e: Invoke VLAN GRO handler

Now that VLAN has GRO support as well, we can call its GRO handler
as well.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: Remove redundant NAPI functions
Ben Hutchings [Tue, 20 Jan 2009 00:43:59 +0000 (16:43 -0800)]
net: Remove redundant NAPI functions

Following the removal of the unused struct net_device * parameter from
the NAPI functions named *netif_rx_* in commit 908a7a1, they are
exactly equivalent to the corresponding *napi_* functions and are
therefore redundant.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosc92031: add a link to the datasheet
Cesar Eduardo Barros [Thu, 15 Jan 2009 04:34:24 +0000 (20:34 -0800)]
sc92031: add a link to the datasheet

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosc92031: use device id directly instead of made-up name
Cesar Eduardo Barros [Thu, 15 Jan 2009 04:34:04 +0000 (20:34 -0800)]
sc92031: use device id directly instead of made-up name

Instead of making up a name for the device ids, put them directly in the
device id table. Also move the vendor id to pci_ids.h.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosc92031: inline SC92031_DESCRIPTION
Cesar Eduardo Barros [Thu, 15 Jan 2009 04:33:44 +0000 (20:33 -0800)]
sc92031: inline SC92031_DESCRIPTION

SC92031_DESCRIPTION is only used in one place.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosc92031: remove meaningless version string
Cesar Eduardo Barros [Thu, 15 Jan 2009 04:33:27 +0000 (20:33 -0800)]
sc92031: remove meaningless version string

The version string makes no sense anymore, since this driver is only
maintained within the kernel.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agosc92031: more useful banner in kernel log
Cesar Eduardo Barros [Thu, 15 Jan 2009 04:33:07 +0000 (20:33 -0800)]
sc92031: more useful banner in kernel log

The banner currently printed when loading the module is mostly useless.

Replace it with a more informative one, printed after probing the device.

Output format copied from 8139cp/8139too.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: constify VFTs
Jan Engelhardt [Wed, 14 Jan 2009 21:52:18 +0000 (13:52 -0800)]
net: constify VFTs

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoWAN: Convert generic HDLC drivers to netdev_ops.
Krzysztof Hałasa [Thu, 8 Jan 2009 21:52:11 +0000 (22:52 +0100)]
WAN: Convert generic HDLC drivers to netdev_ops.

Also remove unneeded last_rx update from Synclink drivers.
Synclink part mostly by Stephen Hemminger.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoWAN: Allow hw HDLC drivers to override dev->get_stats.
Krzysztof Hałasa [Thu, 8 Jan 2009 18:55:57 +0000 (19:55 +0100)]
WAN: Allow hw HDLC drivers to override dev->get_stats.

Use the internal get_stats() by default.
Fixes LMC and wanXL drivers.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoWAN: Generic HDLC now uses IFF_WAN_HDLC private flag.
Krzysztof Hałasa [Thu, 8 Jan 2009 18:46:54 +0000 (19:46 +0100)]
WAN: Generic HDLC now uses IFF_WAN_HDLC private flag.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agowimax/i2400m: convert to net_device_ops
Inaky Perez-Gonzalez [Fri, 9 Jan 2009 16:43:49 +0000 (16:43 +0000)]
wimax/i2400m: convert to net_device_ops

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoclaw: convert to net_device_ops
Frank Blaschka [Fri, 9 Jan 2009 03:43:59 +0000 (03:43 +0000)]
claw: convert to net_device_ops

claw convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetiucv: convert to net_device_ops
Frank Blaschka [Fri, 9 Jan 2009 03:43:58 +0000 (03:43 +0000)]
netiucv: convert to net_device_ops

netiucv convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoctcm: convert to net_device_ops
Frank Blaschka [Fri, 9 Jan 2009 03:43:57 +0000 (03:43 +0000)]
ctcm: convert to net_device_ops

ctcm convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agolcs: convert to net_device_ops
Frank Blaschka [Fri, 9 Jan 2009 03:43:56 +0000 (03:43 +0000)]
lcs: convert to net_device_ops

lcs convert to net_device_ops.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodmascc: convert to internal net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:42 +0000 (13:01 +0000)]
dmascc: convert to internal net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodmascc: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:41 +0000 (13:01 +0000)]
dmascc: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agomkiss: convert to internal network device stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:40 +0000 (13:01 +0000)]
mkiss: convert to internal network device stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoscc: convert to internal net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:39 +0000 (13:01 +0000)]
scc: convert to internal net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoyam: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:38 +0000 (13:01 +0000)]
yam: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoyam: convert to internal net_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:37 +0000 (13:01 +0000)]
yam: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agohdlcdrv: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:36 +0000 (13:01 +0000)]
hdlcdrv: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agohdlcdrv: convert to internal net_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:35 +0000 (13:01 +0000)]
hdlcdrv: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodmascc: convert to network_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:34 +0000 (13:01 +0000)]
dmascc: convert to network_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodmascc: convert to internal network device stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:33 +0000 (13:01 +0000)]
dmascc: convert to internal network device stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobpqether: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:32 +0000 (13:01 +0000)]
bpqether: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobpqether: convert to internal net_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:31 +0000 (13:01 +0000)]
bpqether: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobaycom: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:30 +0000 (13:01 +0000)]
baycom: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobaycom: convert to internal net_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:29 +0000 (13:01 +0000)]
baycom: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago6pack: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:28 +0000 (13:01 +0000)]
6pack: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoznet: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:27 +0000 (13:01 +0000)]
znet: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c559: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:26 +0000 (13:01 +0000)]
3c559: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotms380tr: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:25 +0000 (13:01 +0000)]
tms380tr: convert to net_device_ops

Conver this related group of drivers to new API

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoolympic: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:24 +0000 (13:01 +0000)]
olympic: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoolympic: convert to internal network device stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:23 +0000 (13:01 +0000)]
olympic: convert to internal network device stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agolanstreamer: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:22 +0000 (13:01 +0000)]
lanstreamer: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agolanstreamer: convert to internal network stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:21 +0000 (13:01 +0000)]
lanstreamer: convert to internal network stats

Use internal network_device_stats to keep track of statistics.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoibmtr: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:20 +0000 (13:01 +0000)]
ibmtr: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoibmtr: convert to internal network_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:19 +0000 (13:01 +0000)]
ibmtr: convert to internal network_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c59x: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:18 +0000 (13:01 +0000)]
3c59x: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c527: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:17 +0000 (13:01 +0000)]
3c527: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c523: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:16 +0000 (13:01 +0000)]
3c523: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c515: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:15 +0000 (13:01 +0000)]
3c515: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c509: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:14 +0000 (13:01 +0000)]
3c509: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c507: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:13 +0000 (13:01 +0000)]
3c507: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c505: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:12 +0000 (13:01 +0000)]
3c505: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years ago3c501: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:11 +0000 (13:01 +0000)]
3c501: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agocom20020: convert to net_devic_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:10 +0000 (13:01 +0000)]
com20020: convert to net_devic_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoarcnet: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:09 +0000 (13:01 +0000)]
arcnet: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoarcnet: convert to internal stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:08 +0000 (13:01 +0000)]
arcnet: convert to internal stats

Use pre-existing network_device_stats inside network_device rather than own
private structure.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoappletalk: remove unneeded stubs
Stephen Hemminger [Fri, 9 Jan 2009 13:01:07 +0000 (13:01 +0000)]
appletalk: remove unneeded stubs

With net_device_ops if set_mac_address is null, then error
is -EOPNOTSUPPORTED.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agorose: convert to network_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:06 +0000 (13:01 +0000)]
rose: convert to network_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agorose: convert to internal net_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:05 +0000 (13:01 +0000)]
rose: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetrom: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:04 +0000 (13:01 +0000)]
netrom: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetrom: convert to internal net_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:03 +0000 (13:01 +0000)]
netrom: convert to internal net_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agolec: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:01:02 +0000 (13:01 +0000)]
lec: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agolec: convert to internal network_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:01 +0000 (13:01 +0000)]
lec: convert to internal network_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoclip: convert to internal network_device_stats
Stephen Hemminger [Fri, 9 Jan 2009 13:01:00 +0000 (13:01 +0000)]
clip: convert to internal network_device_stats

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobr2684: convert to net_device_ops
Stephen Hemminger [Fri, 9 Jan 2009 13:00:59 +0000 (13:00 +0000)]
br2684: convert to net_device_ops

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoatm: br2684 internal stats
Stephen Hemminger [Fri, 9 Jan 2009 13:00:58 +0000 (13:00 +0000)]
atm: br2684 internal stats

Now that stats are in net_device, use them.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agousb/mcs7830: Don't use buffers from stack for USB transfers
Christian Eggers [Wed, 21 Jan 2009 20:56:24 +0000 (12:56 -0800)]
usb/mcs7830: Don't use buffers from stack for USB transfers

mcs7830_set_reg() and mcs7830_get_reg() are called with buffers
from stack which must not be used directly for USB transfers.
This causes corruption of the stack particulary on non x86
architectures because DMA may be used for these transfers.

Signed-off-by: Christian Eggers <christian.eggers@kathrein.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agousbnet: allow type check of devdbg arguments in non-debug build
Steve Glendinning [Wed, 21 Jan 2009 20:35:43 +0000 (12:35 -0800)]
usbnet: allow type check of devdbg arguments in non-debug build

Improve usbnet's devdbg to always type-check diagnostic arguments,
like dev_dbg (device.h).  This makes no change to the resulting size of
usbnet modules.

This patch also removes an #ifdef DEBUG directive from rndis_wlan so
it's devdbg statements are always type-checked at compile time.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonetfilter: ctnetlink: fix scheduling while atomic
Patrick McHardy [Wed, 21 Jan 2009 20:19:49 +0000 (12:19 -0800)]
netfilter: ctnetlink: fix scheduling while atomic

Caused by call to request_module() while holding nf_conntrack_lock.

Reported-and-tested-by: Kövesdi György <kgy@teledigit.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agogro: Fix merging of paged packets
Herbert Xu [Sat, 17 Jan 2009 19:48:13 +0000 (19:48 +0000)]
gro: Fix merging of paged packets

The previous fix to paged packets broke the merging because it
reset the skb->len before we added it to the merged packet.  This
wasn't detected because it simply resulted in the truncation of
the packet while the missing bit is subsequently retransmitted.

The fix is to store skb->len before we clobber it.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agogro: Fix error handling on extremely short frags
Herbert Xu [Sat, 17 Jan 2009 19:47:18 +0000 (19:47 +0000)]
gro: Fix error handling on extremely short frags

When a frag is shorter than an Ethernet header, we'd return a
zeroed packet instead of aborting.  This patch fixes that.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agogro: Fix handling of complete checksums in IPv6
Herbert Xu [Sat, 17 Jan 2009 19:46:16 +0000 (19:46 +0000)]
gro: Fix handling of complete checksums in IPv6

We need to perform skb_postpull_rcsum after pulling the IPv6
header in order to maintain the correctness of the complete
checksum.

This patch also adds a missing iph reload after pulling.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agovia-velocity: fix hot spin
roel kluin [Sat, 17 Jan 2009 11:14:31 +0000 (11:14 +0000)]
via-velocity: fix hot spin

while(--j >= 0) keeps spinning when j is unsigned:

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agomyri10ge: don't forget pci_disable_device()
Brice Goglin [Sat, 17 Jan 2009 08:27:19 +0000 (08:27 +0000)]
myri10ge: don't forget pci_disable_device()

Don't forget to call pci_disable_device() in myri10ge_remove()
and when myri10ge_probe() fails.

By the way, update the copyright years.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoNET: net_namespace, fix lock imbalance
Jiri Slaby [Sat, 17 Jan 2009 06:47:12 +0000 (06:47 +0000)]
NET: net_namespace, fix lock imbalance

register_pernet_gen_subsys omits mutex_unlock in one fail path.
Fix it.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Tue, 20 Jan 2009 22:37:10 +0000 (14:37 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6

13 years agoRevert "xfrm: For 32/64 compatability wrt. xfrm_usersa_info"
David S. Miller [Tue, 20 Jan 2009 17:49:51 +0000 (09:49 -0800)]
Revert "xfrm: For 32/64 compatability wrt. xfrm_usersa_info"

This reverts commit fc8c7dc1b29560c016a67a34ccff32a712b5aa86.

As indicated by Jiri Klimes, this won't work.  These numbers are
not only used the size validation, they are also used to locate
attributes sitting after the message.

Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agowimax/i2400m: error paths that need to free an skb should use kfree_skb()
Inaky Perez-Gonzalez [Mon, 19 Jan 2009 13:19:30 +0000 (13:19 +0000)]
wimax/i2400m: error paths that need to free an skb should use kfree_skb()

Roel Kluin reported a bug in two error paths where skbs were wrongly
being freed using kfree(). He provided a fix where it was replaced to
kfree_skb(), as it should be.

However, in i2400mu_rx(), the error path was missing returning an
indication of the failure. Changed to reset rx_skb to NULL and return
it to the caller, i2400mu_rxd(). It will be treated as a transient
error and just ignore the packet.

Depending on the buffering conditions inside the device, the data
packet might be dropped or the device will signal the host again for
data-ready-to-read and the host will retry.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agomv643xx_eth: prevent interrupt storm on ifconfig down
Gabriel Paubert [Tue, 20 Jan 2009 01:18:09 +0000 (17:18 -0800)]
mv643xx_eth: prevent interrupt storm on ifconfig down

Contrary to what the docs say, the 'extended interrupt cause' bit in
the interrupt cause register (bit 1) appears to not be maskable on at
least some of the mv643xx_eth platforms, making writing zeroes to the
interrupt mask register but not the extended interrupt mask register
insufficient to stop interrupts from occuring.  Therefore, also write
zeroes to the extended interrupt mask register when shutting down the
port.

This fixes the interrupt storm seen on the Pegasos board when shutting
down the interface.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agomv643xx_eth: fix multicast filter programming
Lennert Buytenhek [Tue, 20 Jan 2009 01:17:18 +0000 (17:17 -0800)]
mv643xx_eth: fix multicast filter programming

Commit 66e63ffbc04706568d8789cbb00eaa8ddbcae648 ("mv643xx_eth:
implement ->set_rx_mode()") cleaned up mv643xx_eth's multicast filter
programming, but broke it as well.

The non-special multicast filter table (for multicast addresses that
are not of the form 01:00:5e:00:00:xx) consists of 256 hash table
buckets organised as 64 32-bit words, where the 'accept' bits are
in the LSB of each byte, so in bits 24 16 8 0 of each 32-bit word.
The old code got this right, but the referenced commit broke this by
using bits 3 2 1 0 instead.  This commit fixes this up.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoRevert "mv643xx_eth: use longer DMA bursts".
Lennert Buytenhek [Tue, 20 Jan 2009 01:16:00 +0000 (17:16 -0800)]
Revert "mv643xx_eth: use longer DMA bursts".

This reverts commit cd4ccf76bfd2c36d351e68be7e6a597268f98a1a.

On the Pegasos board, we can't do DMA burst that are longer than
one cache line.  For now, go back to using 32 byte DMA bursts for
all mv643xx_eth platforms -- we can switch the ARM-based platforms
back to doing long 128 byte bursts in the next development cycle.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reported-by: Alan Curry <pacman@kosh.dhis.org>
Reported-by: Gabriel Paubert <paubert@iram.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: Fix data corruption when splicing from sockets.
Jarek Poplawski [Tue, 20 Jan 2009 01:03:56 +0000 (17:03 -0800)]
net: Fix data corruption when splicing from sockets.

The trick in socket splicing where we try to convert the skb->data
into a page based reference using virt_to_page() does not work so
well.

The idea is to pass the virt_to_page() reference via the pipe
buffer, and refcount the buffer using a SKB reference.

But if we are splicing from a socket to a socket (via sendpage)
this doesn't work.

The from side processing will grab the page (and SKB) references.
The sendpage() calls will grab page references only, return, and
then the from side processing completes and drops the SKB ref.

The page based reference to skb->data is not enough to keep the
kmalloc() buffer backing it from being reused.  Yet, that is
all that the socket send side has at this point.

This leads to data corruption if the skb->data buffer is reused
by SLAB before the send side socket actually gets the TX packet
out to the device.

The fix employed here is to simply allocate a page and copy the
skb->data bytes into that page.

This will hurt performance, but there is no clear way to fix this
properly without a copy at the present time, and it is important
to get rid of the data corruption.

With fixes from Herbert Xu.

Tested-by: Willy Tarreau <w@1wt.eu>
Foreseen-by: Changli Gao <xiaosuo@gmail.com>
Diagnosed-by: Willy Tarreau <w@1wt.eu>
Reported-by: Willy Tarreau <w@1wt.eu>
Fixed-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotg3: Fix firmware loading
Matt Carlson [Tue, 20 Jan 2009 00:57:45 +0000 (16:57 -0800)]
tg3: Fix firmware loading

This patch modifies how the tg3 driver handles device firmware.

The patch starts by consolidating David Woodhouse's earlier patch under
the same name.  Specifically, the patch moves the request_firmware call
into a separate tg3_request_firmware() function and calls that function
from tg3_open() rather than tg3_init_one().

The patch then goes on to limit the number of devices that will make
request_firmware calls.  The original firmware patch unnecessarily
requested TSO firmware for devices that did not need it.  This patch
reduces the set of devices making TSO firmware patches to approximately
the following device set : 5703, 5704, and 5705.

Finally, the patch reduces the effects of a request_firmware() failure.
For those devices that are requesting TSO firmware, the driver will turn
off the TSO capability.  If TSO firmware becomes available at a later
time, the device can be closed and then opened again to reacquire the
TSO capability.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgbe: Fix usage of netif_*_all_queues() with netif_carrier_{off|on}()
Peter P Waskiewicz Jr [Tue, 20 Jan 2009 00:55:03 +0000 (16:55 -0800)]
ixgbe: Fix usage of netif_*_all_queues() with netif_carrier_{off|on}()

netif_carrier_off() is sufficient to stop Tx into the driver.  Stopping the Tx
queues is redundant and unnecessary.  By the same token, netif_carrier_on()
will be sufficient to re-enable Tx, so waking the queues is unnecessary.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgbe: fix tag stripping for VLAN ID 0
Don Skidmore [Tue, 20 Jan 2009 00:54:36 +0000 (16:54 -0800)]
ixgbe: fix tag stripping for VLAN ID 0

Register VLAN ID 0 so that frames with VLAN ID 0 are received and get
their tag stripped when ixgbe is not in DCB mode.  VLAN ID 0 means
that the frame is 'priority tagged' only - it is not a VLAN, but the
priority value is the tag in valid.  The functions
ixgbe_vlan_rx_register() and ixgbe_vlan_rx_kill_vid() were moved up a
couple functions to correct compiling issues with this change.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Eric W Multanen <eric.w.multanen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoixgbe: fix dca issue with relaxed ordering turned on
Don Skidmore [Tue, 20 Jan 2009 00:54:13 +0000 (16:54 -0800)]
ixgbe: fix dca issue with relaxed ordering turned on

The is an issue where setting Relaxed Ordering (RO) bit
(in a PCI-E write transaction) on 82598 causing the chipset
to drop DCA hints.  This patch forces RO not to be set for
descriptors as well as payload.  This will only be in effect
while DCA is enabled and no performance difference was
noticed in testing.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: Add debug info to track down GSO checksum bug
Herbert Xu [Tue, 20 Jan 2009 00:26:44 +0000 (16:26 -0800)]
net: Add debug info to track down GSO checksum bug

I'm trying to track down why people're hitting the checksum warning
in skb_gso_segment.  As the problem seems to be hitting lots of
people and I can't reproduce it or locate the bug, here is a patch
to print out more details which hopefully should help us to track
this down.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agokorina: drop leftover assignment
Phil Sutter [Thu, 15 Jan 2009 12:29:57 +0000 (12:29 +0000)]
korina: drop leftover assignment

As the assigned value is being overwritten shortly after, it can be
dropped and so the whole variable definition moved to the start of the
function.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agokorina: adjust headroom for new skb's also
Phil Sutter [Thu, 15 Jan 2009 12:29:56 +0000 (12:29 +0000)]
korina: adjust headroom for new skb's also

This is copy and paste from the original driver. As skb_reserve() is
also called within korina_alloc_ring() when initially allocating the
receive descriptors, the same should be done when allocating new space
after passing an skb to upper layers.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agokorina: fix loop back of receive descriptors
Phil Sutter [Thu, 15 Jan 2009 12:29:55 +0000 (12:29 +0000)]
korina: fix loop back of receive descriptors

After the last loop iteration, i has the value RC32434_NUM_RDS and
therefore leads to an index overflow when used afterwards to address the
last element. This is yet another another bug introduced when rewriting
parts of the driver for upstream preparation, as the original driver
used 'RC32434_NUM_RDS - 1' instead.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agocxgb3: Fix LRO misalignment
Divy Le Ray [Mon, 19 Jan 2009 06:01:32 +0000 (22:01 -0800)]
cxgb3: Fix LRO misalignment

The lro manager's frag_align_pad setting was missing,
leading to misaligned access to the skb passed up
to the stack.

Tested-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agomacb: avoid lockup when TGO during underrun
Richard Röjfors [Mon, 19 Jan 2009 05:57:35 +0000 (21:57 -0800)]
macb: avoid lockup when TGO during underrun

In rare cases when an underrun occur, all macb buffers where consumed
and the netif_queue was stopped infinitely. This happens then the TGO
(transfer ongoing) bit in the TSR is set (and UND). It seems like
clening up after the underrun makes the driver and the macb hardware
end up in an inconsistent state. The result of this is that in the
following calls to macb_tx no TX buffers are released -> the
netif_queue was stopped, and never woken up again.

The solution is to disable the transmitter, if TGO is set, before
clening up after the underrun, and re-enable the transmitter when the
cleaning up is done.

Signed-off-by: Richard Röjfors <richard.rojfors@endian.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet/9p: fid->fid is used uninitialized
Roel Kluin [Mon, 19 Jan 2009 05:32:11 +0000 (21:32 -0800)]
net/9p: fid->fid is used uninitialized

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobnx2x: Version update
Eilon Greenstein [Sun, 18 Jan 2009 07:26:13 +0000 (23:26 -0800)]
bnx2x: Version update

Updating the version and the year of updated files

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobnx2x: Barriers for the compiler
Eilon Greenstein [Wed, 14 Jan 2009 06:42:44 +0000 (06:42 +0000)]
bnx2x: Barriers for the compiler

To make sure no swapping are made by the compiler, changed HAS_WORK to inline
functions and added all the necessary barriers

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>