Commit graph

50 commits

Author SHA1 Message Date
Eric Dumazet
89d71a66c4 net: Use netdev_alloc_skb_ip_align()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-13 11:48:18 -07:00
Stephen Hemminger
61357325f3 netdev: convert bulk of drivers to netdev_tx_t
In a couple of cases collapse some extra code like:
   int retval = NETDEV_TX_OK;
   ...
   return retval;
into
   return NETDEV_TX_OK;

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-01 01:14:07 -07:00
Roel Kluin
082ba88a5e atlx: strncpy does not null terminate string
strlcpy() will always null terminate the string.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Jay Cliburn <jcliburn@gmail.com>
Cc: Chris Snook <csnook@redhat.com>
Cc: Jie Yang <jie.yang@atheros.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-09 21:45:31 -07:00
Eric Dumazet
17d0cdfa8f net: ntohs() misuse
Some drivers incorrectly use ntohs() instead of htons()

A cleanup as htons() returns same result than ntohs(),
but better to use the proper one.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-11 17:23:24 -07:00
David S. Miller
b2f8f7525c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/forcedeth.c
2009-06-03 02:43:41 -07:00
Eric Dumazet
cdd0db058d net: dont update dev->trans_start
Second round of drivers for Gb cards (and NIU one I forgot in the 10GB round)

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29 01:46:27 -07:00
Alex Chiang
5ad1890035 atlx: move modinfo data from atlx.h to atl1.c
Both atl1.c and atl2.c include atlx.h, which defines some modinfo
stuff. But atl2.c seems like it doesn't want the modinfo data
from atlx.h, as it defines its own.

Running modinfo on atl2.ko, we get conflicting information:

$ /sbin/modinfo drivers/net/atlx/atl2.ko | egrep "version|description|author"
version:        2.2.3
description:    Atheros Fast Ethernet Network Driver
author:         Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>
version:        2.1.3
author:         Xiong Huang <xiong.huang@atheros.com>, 	Chris Snook <csnook@redhat.com>, Jay Cliburn <jcliburn@gmail.com>

Move the modinfo data out of atlx.h and into atl1.c to eliminate
the confusion:

$ /sbin/modinfo drivers/net/atlx/atl1.ko | egrep "version|description|author"
version:        2.1.3
author:         Xiong Huang <xiong.huang@atheros.com>, 	Chris Snook <csnook@redhat.com>, Jay Cliburn <jcliburn@gmail.com>
description:    Atheros L1 Gigabit Ethernet Driver

$ /sbin/modinfo drivers/net/atlx/atl2.ko | egrep "version|description|author"
version:        2.2.3
description:    Atheros Fast Ethernet Network Driver
author:         Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>

Reported-by: Scott Scriven <scott.scriven@hp.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Jay Cliburn <jcliburn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:50:12 -07:00
Alexander Beregalov
0ee904c35c drivers/net: replace BUG() with BUG_ON() if possible
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13 15:44:36 -07:00
Yang Hongyang
284901a90a dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:11 -07:00
Hannes Eder
b79d8fff0e drivers/net/atlx: fix sparse warnings: fix signedness
Impact: While being at it: statics do not need to be initialized with 0.

Fix this sparse warnings:
  drivers/net/atlx/atl1.c:109:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2870:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2880:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2894:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2904:1: warning: incorrect type in initializer (different signedness)
  drivers/net/atlx/atl2.c:2913:1: warning: incorrect type in initializer (different signedness)

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Jay Cliburn <jcliburn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-17 17:26:07 -08:00
Hannes Eder
9dc20f553f drivers/net/atlx: fix sparse warnings: make symbols static
Fix this sparse warnings:

  drivers/net/atlx/atl1.c:198:16: warning: symbol 'atl1_check_options' was not declared. Should it be static?
  drivers/net/atlx/atl1.c:526:5: warning: symbol 'atl1_read_mac_addr' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25 23:58:35 -08:00
Stephen Hemminger
008298231a netdev: add more functions to netdevice ops
This patch moves neigh_setup and hard_start_xmit into the network device ops
structure. For bisection, fix all the previously converted drivers as well.
Bonding driver took the biggest hit on this.

Added a prefetch of the hard_start_xmit in the fast path to try and reduce
any impact this would have.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-20 20:14:53 -08:00
Stephen Hemminger
825a84d1d3 atlx: convert to net_device_ops
Convert this driver to network device ops. Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-19 22:42:48 -08:00
David S. Miller
198d6ba4d7 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/isdn/i4l/isdn_net.c
	fs/cifs/connect.c
2008-11-18 23:38:23 -08:00
J. K. Cliburn
3b259e3659 atl1: Do not enumerate options unsupported by chip
Of the various WOL options provided in include/linux/ethtool.h, the
L1 NIC supports only magic packet.  Remove all options except magic
packet from the atl1 driver.

Signed-off-by: Jay Cliburn <jcliburn@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-14 18:19:18 -05:00
David S. Miller
babcda74e9 drivers/net: Kill now superfluous ->last_rx stores.
The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Drivers need not do it any more.

Some cases had to be skipped over because the drivers
were making use of the ->last_rx value themselves.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03 21:11:17 -08:00
Stephen Hemminger
e053b628d3 atlx: timer cleanup
Do some cleanup on timer usage in this driver:
  * Use round_jiffies to align wakeups and reduce power.
  * Remove atl1_watchdog which does nothing but rearm itself
  * Use setup_timer() function

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-02 08:00:15 -05:00
Stephen Hemminger
02e7173149 atlx: use embedded net_device_stats
There is now a net_device_stats structure inside net_device that should
be used if possible by devices. Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-02 07:59:55 -05:00
Jay Cliburn
dc5596d920 atl1: fix vlan tag regression
Commit 401c0aabec introduced a regression
in the atl1 driver by storing the VLAN tag in the wrong TX descriptor
field.

This patch causes the VLAN tag to be stored in its proper location.

Tested-by: Ramon Casellas <ramon.casellas@cttc.es>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-10-31 00:46:34 -04:00
Jay Cliburn
c8f2d9bc12 atl1: update introductory comments
Update the driver's introductory comments.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 16:09:24 -07:00
Jay Cliburn
e1098328e8 atl1: remove LLTX
NETIF_F_LLTX is deprecated. Remove private TX locking from the driver
and remove the NETIF_F_LLTX feature flag.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 16:07:34 -07:00
Jay Cliburn
b29be6d3f2 atl1: fix transmit timeout bug
See http://marc.info/?l=linux-netdev&m=121931988219314&w=2

Stop the queue and turn off carrier to prevent transmit timeouts
when the cable is unplugged/replugged.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-08 16:06:47 -07:00
Jay Cliburn
82c26a9d11 atl1: disable TSO by default
The atl1 driver is causing stalled connections and file corruption
whenever TSO is enabled.  Two examples are here:

http://lkml.org/lkml/2008/7/15/325
http://lkml.org/lkml/2008/8/18/543

Disable TSO by default until we can determine the source of the
problem.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-27 05:36:27 -04:00
Jay Cliburn
c2ac3ef35c atl1: deal with hardware rx checksum bug
The L1 hardware contains a bug that flags a fragmented IP packet
as having an incorrect TCP/UDP checksum, even though the packet
is perfectly valid and its checksum is correct.  There's no way to
distinguish between one of these good packets and a packet that
actually contains a TCP/UDP checksum error, so all we can do is
allow the packet to be handed up to the higher layers and let it
be sorted out there.

Add a comment describing this condition and remove the code that
currently fails to handle what may or may not be a checksum error.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-08-07 01:54:57 -04:00
David S. Miller
39d48157ac atl1: Do not wake queue before queue has been started.
Based upon a bug report by Alexey Dobriyan, the patch is
also tested by him and confirmed to fix the problem.

Packet flow during link state events should not be done by
waking and stopping the TX queue anyways, that is handled
transparently by netif_carrier_{on,off}().

So, remove the netif_{wake,stop}_queue() calls in the link
check code, and add the necessary netif_start_queue() call
to atl1_up().

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-07-21 08:28:37 -07:00
David S. Miller
0344f1c66b Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	net/mac80211/tx.c
2008-06-19 16:00:04 -07:00
Radu Cristescu
58c7821c42 atl1: relax eeprom mac address error check
The atl1 driver tries to determine the MAC address thusly:

	- If an EEPROM exists, read the MAC address from EEPROM and
	  validate it.
	- If an EEPROM doesn't exist, try to read a MAC address from
	  SPI flash.
	- If that fails, try to read a MAC address directly from the
	  MAC Station Address register.
	- If that fails, assign a random MAC address provided by the
	  kernel.

We now have a report of a system fitted with an EEPROM containing all
zeros where we expect the MAC address to be, and we currently handle
this as an error condition.  Turns out, on this system the BIOS writes
a valid MAC address to the NIC's MAC Station Address register, but we
never try to read it because we return an error when we find the all-
zeros address in EEPROM.

This patch relaxes the error check and continues looking for a MAC
address even if it finds an illegal one in EEPROM.

Signed-off-by: Radu Cristescu <advantis@gmx.net>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-17 23:09:21 -04:00
David S. Miller
4ae127d1b6 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/smc911x.c
2008-06-13 20:52:39 -07:00
Jay Cliburn
ae6b4d9ab6 atl1: fix suspend regression
Using vendor magic to force the PHY into power save mode breaks
suspend.  It isn't needed anyway, so remove it.

Tested-by: Avuton Olrich <avuton@gmail.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-10 18:20:39 -04:00
David S. Miller
65b53e4cc9 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:

	drivers/net/tg3.c
	drivers/net/wireless/rt2x00/rt2x00dev.c
	net/mac80211/ieee80211_i.h
2008-06-10 02:22:26 -07:00
David S. Miller
8b91ac0973 Merge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2008-06-04 11:50:00 -07:00
Alexey Dobriyan
aefdbf1a3b atl1: fix 4G memory corruption bug
When using 4+ GB RAM and SWIOTLB is active, the driver corrupts
memory by writing an skb after the relevant DMA page has been
unmapped.  Although this doesn't happen when *not* using bounce
buffers, clearing the pointer to the DMA page after unmapping
it fixes the problem.

http://marc.info/?t=120861317000005&r=2&w=2

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-30 22:07:25 -04:00
Stephen Hemminger
b102df14d7 atl1: use netdev_alloc_skb
Use netdev_alloc_skb for rx buffer allocation. This sets skb->dev
and can be overriden for NUMA machines.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-22 14:12:35 -04:00
Al Viro
d63ddcec20 misc drivers/net endianness noise
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-22 06:34:15 -04:00
Al Viro
4ec7ffa2df misc drivers/net endianness noise
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-21 16:55:59 -07:00
Jay Cliburn
e8f720fdec atl1: bump version number
atl1-2.1.3.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-13 01:30:25 -04:00
Jay Cliburn
bf455a2247 atl1: add shutdown callback
Add a shutdown callback that points to atl1_suspend().  This, along
with a working suspend function, fixes wake-on-lan.

Tested-by: Per Olofsson <pelle@dsv.su.se>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-13 01:30:24 -04:00
Jay Cliburn
08e0f1dc83 atl1: fix broken suspend and resume
Fix atl1_suspend() and atl1_resume() so they actually work.  We'll use
the suspend function for wake-on-lan in addition to just suspending.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-13 01:30:24 -04:00
Jay Cliburn
ff772b27e5 atl1: add PHY power save mode
Using vendor-provided magic, add code to enter power save mode
on the PHY.  We'll need this for suspend and wake-on-lan.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-13 01:30:23 -04:00
Chris Snook
8ec7226a93 [netdrvr] atlx: code movement: move atl1 parameter parsing
Move some code from atlx.c to atl1.c to prevent build conflict with
the upcoming atl2 code.  No changes, just movement.

Signed-off-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-25 02:08:52 -04:00
David S. Miller
76fef2b6bf Merge branch 'upstream-net26' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
Conflicts:

	drivers/s390/net/qeth_main.c
2008-03-22 18:22:42 -07:00
Jay Cliburn
6446a860f8 atl1: reduce forward declarations
Rearrange functions to allow removal of some forward declarations.
Make certain global functions static along the way.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:25 -04:00
Jay Cliburn
0dde4ef99d atl1: make functions static
Make needlessly global functions static.  In a couple of cases this
requires removing forward declarations and reordering functions.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:25 -04:00
Jay Cliburn
235ffa136c atl1: print debug info if rrd error
Add some debug printks if we encounter a potentially bad receive
return descriptor.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:25 -04:00
Jay Cliburn
460578bfe4 atl1: use netif_msg
Use netif_msg_* for console messages emitted by the driver. Add a
parameter to allow control of messaging at driver startup, and also
add the ability to control it with ethtool.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:25 -04:00
Jay Cliburn
5ca3bc3041 atl1: use csum_start
Use skb->csum_start for tx checksum offload preparation. Also swap
the variables css and cso so they hold the intended values of csum
start and offset, respectively.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:25 -04:00
Jay Cliburn
401c0aabec atl1: simplify tx packet descriptor
The transmit packet descriptor consists of four 32-bit words, with word 3
upper bits overloaded depending upon the condition of its bits 3 and 4.
The driver currently duplicates all word 2 and some word 3 register bit
definitions unnecessarily and also uses a set of nested structures in its
definition of the TPD without good cause. This patch adds a lengthy
comment describing the TPD, eliminates duplicate TPD bit definitions,
and simplifies the TPD structure itself. It also expands the TSO check
to correctly handle custom checksum versus TSO processing using the revised
TPD definitions. Finally, shorten some variable names in the transmit
processing path to reduce line lengths, rename some variables to better
describe their purpose (e.g., nseg versus m), and add a comment or two
to better describe what the code is doing.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:25 -04:00
Jay Cliburn
c67c9a2f11 atl1: add ethtool register dump
Add the ethtool register dump option to the atl1 driver.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:23 -04:00
Jay Cliburn
9d90fb1ac9 atl1: fix broken TSO
The L1 tx packet descriptor expects TCP Header Length to be expressed as a
number of 32-bit dwords.  The atl1 driver uses tcp_hdrlen() to populate the
field, but tcp_hdrlen() returns the header length in bytes, not in dwords.
Add a shift to convert tcp_hdrlen() to dwords when we write it to the tpd.

Also, some of our bit assignments are made to the wrong tpd words.  Change
those to the correct words.

Finally, since all this fixes TSO, enable TSO by default.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:23 -04:00
Jay Cliburn
305282ba19 atl1: move common functions to atlx files
The future atl2 driver and the existing atl1 driver can share certain
functions and definitions.  Move these shareable functions and definitions
out of atl1-specific files and into atlx.c and atlx.h.  Some transitory
hackery will be present until atl2 is merged.

Reduce the number of source files by moving ethtool, hw, and param
functions from separate files into atl1_main.c, then rename it to just
atl1.c.

Move all atl1-specific definitions from atl1_hw.h to atl1.h.

Finally, clean up to make checkpatch.pl happy.

Signed-off-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-17 07:49:23 -04:00
Renamed from drivers/net/atlx/atl1_main.c (Browse further)