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Commit Graph

145941 Commits

Author SHA1 Message Date
Herbert Xu
9aaa156cf9 gro: Store shinfo in local variable in skb_gro_receive
This patch stores the two shinfo pointers in local variables
because they're used over and over again in skb_gro_receive.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:26:05 -07:00
Herbert Xu
66e92fcf1d gro: Nasty optimisations for page frags in skb_gro_receive
This patch reverses the direction of the frags array copy in
skb_gro_receive in order simplify the loop conditional.  It
also avoids touching the first element of the original frags
array.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:26:04 -07:00
Herbert Xu
cb18978cbf gro: Open-code final pskb_may_pull
As we know the only packets which need the final pskb_may_pull
are completely non-linear, and have all the required bits in
frag0, we can perform a straight memcpy instead of going through
pskb_may_pull and doing skb_copy_bits.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:26:02 -07:00
Herbert Xu
1075f3f65d ipv4: Use 32-bit loads for ID and length in GRO
This patch optimises the IPv4 GRO code by using 32-bit loads
(instead of 16-bit ones) on the ID and length checks in the receive
function.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:26:02 -07:00
Herbert Xu
a5b1cf288d gro: Avoid unnecessary comparison after skb_gro_header
For the overwhelming majority of cases, skb_gro_header's return
value cannot be NULL.  Yet we must check it because of its current
form.  This patch splits it up into multiple functions in order
to avoid this.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:26:01 -07:00
Herbert Xu
7489594cb2 gro: Optimise length comparison in skb_gro_header
By caching frag0_len, we can avoid checking both frag0 and the
length separately in skb_gro_header.  This helps as skb_gro_header
is called four times per packet which amounts to a few million
times at 10Gb/s.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:26:01 -07:00
Herbert Xu
30a3ae30c7 tcp: Optimise len/mss comparison
Instead of checking len > mss || len == 0, we can accomplish
both by checking (len - 1) > mss using the unsigned wraparound.
At nearly a million times a second, this might just help.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:26:00 -07:00
Herbert Xu
4a9a2968a1 tcp: Remove unnecessary window comparisons for GRO
The window has already been checked as part of the flag word
so there is no need to check it explicitly.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:25:59 -07:00
Herbert Xu
745898eaf0 tcp: Optimise GRO port comparisons
Instead of doing two 16-bit operations for the source/destination
ports, we can do one 32-bit operation to take care both.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:25:57 -07:00
Herbert Xu
78d3fd0b7d gro: Only use skb_gro_header for completely non-linear packets
Currently skb_gro_header is used for packets which put the hardware
header in skb->data with the rest in frags.  Since the drivers that
need this optimisation all provide completely non-linear packets,
we can gain extra optimisations by only performing the frag0
optimisation for completely non-linear packets.

In particular, we can simply test frag0 (instead of skb_headlen)
to see whether the optimisation is in force.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:25:57 -07:00
Herbert Xu
67147ba99a gro: Localise offset/headlen in skb_gro_offset
This patch stores the offset/headlen in local variables as they're
used repeatedly in skb_gro_offset.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:25:55 -07:00
Herbert Xu
78a478d0ef gro: Inline skb_gro_header and cache frag0 virtual address
The function skb_gro_header is called four times per packet which
quickly adds up at 10Gb/s.  This patch inlines it to allow better
optimisations.

Some architectures perform multiplication for page_address, which
is done by each skb_gro_header invocation.  This patch caches that
value in skb->cb to avoid the unnecessary multiplications.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:25:55 -07:00
Herbert Xu
42da6994ca gro: Open-code frags copy in skb_gro_receive
gcc does a poor job at generating code for the memcpy of the frags
array in skb_gro_receive, which is the primary purpose of that
function when merging frags.  In particular, it can't utilise the
alignment information of the source and destination.  This patch
open-codes the copy so we process words instead of bytes.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27 03:25:54 -07:00
Peter P Waskiewicz Jr
0fb2787bf2 ixgbe: Fix build warning
This patch fixes a build warning due to an unused label.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 21:41:18 -07:00
David S. Miller
8e401eccd3 phy: Eliminate references to BUS_ID_SIZE.
Just use the constant 20 to keep things working.

If someone is so motivated, this can be converted over to
dynamic strings.  I tried and it's a lot of work.

But for now this is good enough.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 21:16:25 -07:00
David S. Miller
079e24ed80 nl80211: Eliminate reference to BUS_ID_SIZE.
It's going away.  Just leave the constant "20" here so that
behavior doesn't change.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 21:15:00 -07:00
David S. Miller
0a372eb91f sh_eth: Remove references to BUS_ID_SIZE, use MII_BUS_ID_SIZE instead.
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 21:11:09 -07:00
David S. Miller
21a8cfe120 cpmac: Remove references to BUS_ID_SIZE, use MII_BUS_ID_SIZE.
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 21:10:22 -07:00
David S. Miller
0e53c7f954 ixp4xx_eth: Remove references to BUS_ID_SIZE.
Use MII_BUS_ID_SIZE instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 21:09:33 -07:00
David S. Miller
2b0cc7f78b net: Remove bogus reference to BUS_ID_SIZE in sysfs code.
BUS_ID_SIZE is really no more, and device names are dynamically
allocated and thus can be any necessary size.

So remove the BUG check here making sure BUS_ID_SIZE is at least
as large as IFNAMSIZ.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 21:05:19 -07:00
Jean Delvare
f21b75e9d6 r8169: Use a different default for each family
The r8169 driver supports 3 different families of network chips
(RTL8169, RTL8168 and RTL8101). When an unknown version is found, the
driver currently always defaults to the RTL8169 variant. This has very
little chance to ever work for chips of the other families. So better
define a per-family default.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:54:48 -07:00
Kevin Hao
3d6593e9cc net/ucc_geth: allow to set mac address on running device
Inspired by the patch for 8139too (bda6a15a).

Currently we can't set mac address on a running ucc_geth device.
But this is needed when you use this device as a bonding slave in
bonding device in balance-alb mode. So add this feature for ucc_geth
device.

Signed-off-by: Kevin Hao <kexin.hao@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:49:03 -07:00
Tanli Chang
9c5cd67080 niu: Add support for C10NEM
This patch is for supporting C10NEM. C10NEM is a switch module, which
has back-to-back XAUI link connected to blades.

Signed-off-by: Tanli Chang <tanli.chang@sun.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:45:50 -07:00
Don Skidmore
8ca783ab78 ixgbe: fix 82598 SFP initialization after driver load.
If we loaded the driver with out a SFP module plugged in it would
leave it in a state that make it later unable to link when a module
was plugged in.  This patch corrects that by:

ixgbe_probe() - moving the check for IXGBE_ERR_SFP_NOT_PRESENT from
after get_invariants() to after reset_hw() as now reset_hw() is
where this condition will be indentified.

ixgbe_reset_hw_82598() - Enable this function to now return
IXGBE_ERR_SFP_NOT_PRESENT.

ixgbe_identify_sfp_module_generic() - This where the lack of SFP
module is detected.  Modifications are added to allow a different
return value for modules that just haven't been plugged in yet.

Other functions were updated to allow correct logging.

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>
2009-05-26 20:40:47 -07:00
Peter P Waskiewicz Jr
f7c86a3252 ixgbe: Remove device ID 0x10d8
Device ID 0x10d8 is the default silicon device ID for 82599.  However, the
device will not be functional without an EEPROM, so we want to prevent the
driver from loading on the device.  Otherwise, the driver will load, but no
PHY setup or PCIe setup will occur, causing the device to be unusable.  To
prevent users from encountering this, just remove the device ID.

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>
2009-05-26 20:40:09 -07:00
Alexander Duyck
cbe7a81a73 igb/e1000e: update PSSR_MDIX value to reflect correct bit
The phy port status register has the MDI-X status bit on bit 11, not bit 3
as is currently setup in the define.  This patch corrects that so the
correct bit is checked on igp PHY types.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:35:06 -07:00
Jesper Dangaard Brouer
3ea73afafb igb: Record host memory receive overflow in net_stats
Based on previous patch from Jesper Dangaard Brouer.

The RNBC (Receive No Buffers Count) register for the 82576, indicate
that frames were received when there were no available buffers in host
memory to store those frames (receive descriptor head and tail
pointers were equal).  The packet is still received by the NIC if
there is space in the FIFO on the NIC.

As the RNBC value is not a packet drop, the driver stores this value
in net_stats.rx_fifo_errors to indicate that there were no system
buffers available for the incoming packet.  Actual dropped packets
are counted in the MPC value.

Saving the stats in dev->net_stats makes it visible via
/proc/net/dev as "fifo", and thus viewable to ifconfig
as "overruns" and 'netstat -i' as "RX-OVR".

The Receive No Buffers Count (RNBC) can already be queried by
ethtool -S as "rx_no_buffer_count".

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:35:06 -07:00
Jesper Dangaard Brouer
8c0ab70ab9 igb: Implement reading of reg RQDPC (Receive Queue Drop Packet Count)
Based on the previous patches from Jesper Dangaard Brouer <hawk@comx.dk>

Implement reading the per queue drop stats register
RQDPC (Receive Queue Drop Packet Count).  It counts the number of
packets dropped by a queue due to lack of descriptors available.

Notice RQDPC (Receive Queue Drop Packet Count) stats only gets
incremented, if the DROP_EN bit it set (in the SRRCTL register
for that queue).  If DROP_EN bit is NOT set, then the some what
equivalent count is stored in RNBC (not per queue basis).

The RQDPC register is only 12 bit, thus the precision might
suffer due to overrun in-netween the watchdog polling interval.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:35:05 -07:00
Jeff Kirsher
3c514ce2f9 igb: add RQDPC (Receive Queue Drop Packet Count) register macro
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:35:04 -07:00
Alexander Beregalov
b93d584772 8139*: convert printk() to pr_<foo>()
Also convert DPRINTK to pr_debug and dev_printk to dev_<foo>.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:35:04 -07:00
Alexander Beregalov
39738e161f 3c5xx: convert printk() to pr_<foo>()
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:35:03 -07:00
Alexander Beregalov
646cdb3283 3c50x: convert printk() to pr_<foo>()
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-26 20:35:02 -07:00
Eric Dumazet
d3f65f7c3c atl1: use netdev->stats
Get rid of private struct net_device_stats in "struct atl1e_adapter",
and use one provided in struct net_device instead.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 23:48:43 -07:00
Eric Dumazet
08baf56108 net: txq_trans_update() helper
We would like to get rid of netdev->trans_start = jiffies; that about all net
drivers have to use in their start_xmit() function, and use txq->trans_start
instead.

This can be done generically in core network, as suggested by David.

Some devices, (particularly loopback) dont need trans_start update, because
they dont have transmit watchdog. We could add a new device flag, or rely
on fact that txq->tran_start can be updated is txq->xmit_lock_owner is
different than -1. Use a helper function to hide our choice.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:58:01 -07:00
Yoshihiro Shimoda
65ac885149 net: sh_eth: Add support SH7724
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:49:56 -07:00
Yoshihiro Shimoda
380af9e390 net: sh_eth: CPU dependency code collect to "struct sh_eth_cpu_data"
This improves readability by collecting CPU dependency code.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:49:55 -07:00
Yoshihiro Shimoda
862df49750 net: sh_eth: fix receive desciptor loop
Fix the problem that this driver not update rxdesc in sh_eth_rx.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:49:55 -07:00
Yoshihiro Shimoda
0029d64af5 net: sh_eth: fix TX/RX descriptor not set physical memory
Fix the probrem that TX/RX descirptor not set physical memory.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:49:54 -07:00
Yoshihiro Shimoda
e88aae7bb1 net: sh_eth: fix cache coherency issue
Fix the problem that may not work receive process by cache coherency issue.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:49:53 -07:00
Jarek Poplawski
a1dcb6628b pkt_sched: gen_estimator: Fix signed integers right-shifts.
Right-shifts of signed integers are implementation-defined so unportable.

With feedback from: Eric Dumazet <dada1@cosmosbay.com>

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:47:01 -07:00
Gabriel Paubert
dfa9264fe1 net: Remove obsolete MV64360 config option
Signed-off-by: Gabriel Paubert <paubert@iram.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:46:19 -07:00
Zhu Yi
d0fc1d5e3f iwmc3200wifi: fix link error when CFG80211 is not selected
The patch makes iwmc3200wifi select CFG80211 instead of LIB80211.
This fixed module link error reported by Randy Dunlap
<randy.dunlap@oracle.com> when compiling iwmc3200wifi without
cfg80211 selected. WIRELESS_EXT is also selected by iwmc3200wifi.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 22:41:51 -07:00
Alexander Beregalov
e3804cbebb net: remove COMPAT_NET_DEV_OPS
All drivers are already converted to new net_device_ops API
and nobody uses old API anymore.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 01:53:53 -07:00
David S. Miller
c649c0e31d Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/ath/ath5k/phy.c
	drivers/net/wireless/iwlwifi/iwl-agn.c
	drivers/net/wireless/iwlwifi/iwl3945-base.c
2009-05-25 01:42:21 -07:00
Andreas Eversberg
daebafed7f mISDN: Added PCI ID for new Junghanns.net Single E1 cards.
The new ID is validated by Cologne Chip.
LEDs control is also supported.

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:56:56 -07:00
Andreas Eversberg
b0579d7459 mISDN: Fix DTMF detection enable/disable
DTMF detection was enabled when it was not supposed to.

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:55:47 -07:00
Arnaldo Carvalho de Melo
8c90e11e35 mISDN: Use kernel_{send,recv}msg instead of open coding
Reducing the number of direct users of sock_{recv,send}msg.
Modified version to match the latest context.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:55:46 -07:00
Karsten Keil
eac74af9b5 mISDN: Cleanup debug messages
This patch make debug printk's KERN_DEBUG and also fix some
codestyle issues.

Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:55:45 -07:00
Andreas Eversberg
7245a2fe3c mISDN: Add PCI ID for Junghanns 8S card
new id for HFC-8S

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:55:45 -07:00
Roel Kluin
ddacd14e8d mISDN: get_free_devid() failure ignored
dev->id is unsigned so a get_free_devid() error is ignored.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:55:31 -07:00