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Nicolas Dichtel [Wed, 14 Nov 2012 05:14:06 +0000 (05:14 +0000)]
sit: rename rtnl functions for consistency
Functions in this file start with ipip6_.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:14:05 +0000 (05:14 +0000)]
sit/rtnl: add missing parameters on dump
IFLA_IPTUN_FLAGS and IFLA_IPTUN_PMTUDISC were missing.
There is only one possible flag in i_flag: SIT_ISATAP.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:14:04 +0000 (05:14 +0000)]
sit: always notify change when params are updated
netdev_state_change() was called only when end points or link was updated. Now
that all parameters are advertised via netlink, we must advertise any change.
This patch also prepares the support of sit tunnels management via rtnl. The
code which update tunnels will be put in a new function.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:14:03 +0000 (05:14 +0000)]
ipip: add support of link creation via rtnl
This patch add the support of 'ip link .. type ipip'.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:14:02 +0000 (05:14 +0000)]
ipip/rtnl: add IFLA_IPTUN_PMTUDISC on dump
This parameter was missing in the dump.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:14:01 +0000 (05:14 +0000)]
ipip: always notify change when params are updated
netdev_state_change() was called only when end points or link was updated. Now
that all parameters are advertised via netlink, we must advertise any change.
This patch also prepares the support of ipip tunnels management via rtnl. The
code which update tunnels will be put in a new function.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:14:00 +0000 (05:14 +0000)]
ip6tnl: add support of link creation via rtnl
This patch add the support of 'ip link .. type ip6tnl'.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:13:59 +0000 (05:13 +0000)]
ip6tnl: rename rtnl functions for consistency
Functions in this file start with ip6_tnl_.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Wed, 14 Nov 2012 05:13:58 +0000 (05:13 +0000)]
ip6tnl/rtnl: add IFLA_IPTUN_PROTO on dump
IPv6 tunnels can have three mode: 4in6, 6in6 and xin6.
This information was missing in the netlink message.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Tue, 13 Nov 2012 13:53:28 +0000 (13:53 +0000)]
vmxnet3: fix indentation
Minor indentation out of alignment.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Tue, 13 Nov 2012 07:53:08 +0000 (07:53 +0000)]
bridge: add root port blocking
This is Linux bridge implementation of root port guard.
If BPDU is received from a leaf (edge) port, it should not
be elected as root port.
Why would you want to do this?
If using STP on a bridge and the downstream bridges are not fully
trusted; this prevents a hostile guest for rerouting traffic.
Why not just use netfilter?
Netfilter does not track of follow spanning tree decisions.
It would be difficult and error prone to try and mirror STP
resolution in netfilter module.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Tue, 13 Nov 2012 07:53:07 +0000 (07:53 +0000)]
bridge: implement BPDU blocking
This is Linux bridge implementation of STP protection
(Cisco BPDU guard/Juniper BPDU block). BPDU block disables
the bridge port if a STP BPDU packet is received.
Why would you want to do this?
If running Spanning Tree on bridge, hostile devices on the network
may send BPDU and cause network failure. Enabling bpdu block
will detect and stop this.
How to recover the port?
The port will be restarted if link is brought down, or
removed and reattached. For example:
# ip li set dev eth0 down; ip li set dev eth0 up
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Tue, 13 Nov 2012 07:53:06 +0000 (07:53 +0000)]
bridge: add template for bridge port flags
Provide macro to build sysfs data structures and functions
for accessing flag bits. If flag bits change do netlink
notification.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Tue, 13 Nov 2012 07:53:05 +0000 (07:53 +0000)]
bridge: bridge port parameters over netlink
Expose bridge port parameter over netlink. By switching to a nested
message, this can be used for other bridge parameters.
This changes IFLA_PROTINFO attribute from one byte to a full nested
set of attributes. This is safe for application interface because the
old message used IFLA_PROTINFO and new one uses
IFLA_PROTINFO | NLA_F_NESTED.
The code adapts to old format requests, and therefore stays
compatible with user mode RSTP daemon. Since the type field
for nested and unnested attributes are different, and the old
code in libnetlink doesn't do the mask, it is also safe to use
with old versions of bridge monitor command.
Note: although mode is only a boolean, treating it as a
full byte since in the future someone will probably want to add more
values (like macvlan has).
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Sun, 11 Nov 2012 20:16:08 +0000 (20:16 +0000)]
ipv6: remove obsolete comments in route.c
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Sun, 11 Nov 2012 13:56:28 +0000 (13:56 +0000)]
net/macb: clear unused address register
Only the first register set is used for matching but
we support getting the initial hw addr from any of
the registers.
To prevent stale entries and false matches clear unused
register sets. This most important for the at91_ether
driver where u-boot always uses the 2nd register set.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Sun, 11 Nov 2012 13:56:27 +0000 (13:56 +0000)]
net/macb: add support for phy irq via gpio pin
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Sun, 11 Nov 2012 13:56:26 +0000 (13:56 +0000)]
net/phy/davicom: add irq functions to DM9161E and DM9161A
Both these PHYs support interrupt generation on IC pin 32.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amerigo Wang [Sun, 11 Nov 2012 21:52:34 +0000 (21:52 +0000)]
net: unify for_each_ip_tunnel_rcu()
The defitions of for_each_ip_tunnel_rcu() are same,
so unify it. Also, don't hide the parameter 't'.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amerigo Wang [Sun, 11 Nov 2012 21:52:33 +0000 (21:52 +0000)]
net: convert __IPTUNNEL_XMIT() to an inline function
__IPTUNNEL_XMIT() is an ugly macro, convert it to a static
inline function, so make it more readable.
IPTUNNEL_XMIT() is unused, just remove it.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Wed, 7 Nov 2012 15:31:02 +0000 (15:31 +0000)]
ARM: net: bpf_jit_32: add VLAN instructions for BPF JIT
This patch is a follow-up for patch "net: filter: add vlan tag access"
to support the new VLAN_TAG/VLAN_TAG_PRESENT accessors in BPF JIT.
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Cc: Mircea Gherzan <mgherzan@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mircea Gherzan <mgherzan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Wed, 7 Nov 2012 15:28:28 +0000 (15:28 +0000)]
ARM: net: bpf_jit_32: add XOR instruction for BPF JIT
This patch is a follow-up for patch "filter: add XOR instruction for use
with X/K" that implements BPF ARM JIT parts for the BPF XOR operation.
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Cc: Mircea Gherzan <mgherzan@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mircea Gherzan <mgherzan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merav Sicron [Sun, 11 Nov 2012 03:56:08 +0000 (03:56 +0000)]
bnx2x: Add static declaration to several functions
This patch adds static declaration to several functions in bnx2x. It eliminates
newly introduced sparse warnings reported by Fengguang Wu.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Merav Sicron <meravs@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hannes Frederic Sowa [Tue, 6 Nov 2012 16:46:20 +0000 (16:46 +0000)]
ipv6: add knob to send unsolicited ND on link-layer address change
This patch introduces a new knob ndisc_notify. If enabled, the kernel
will transmit an unsolicited neighbour advertisement on link-layer address
change to update the neighbour tables of the corresponding hosts more quickly.
This is the equivalent to arp_notify in ipv4 world.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Akeem G. Abodunrin [Tue, 13 Nov 2012 04:03:25 +0000 (04:03 +0000)]
igb: Ethtool support to enable and disable EEE
This patch allows users to enable and disable EEE using Ethtool.
It also allows users to get EEE settings, as supported by the device.
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 13 Nov 2012 04:03:24 +0000 (04:03 +0000)]
igb: Improve performance and reduce size of igb_tx_map
This change is meant to both improve the performance and reduce the size of
igb_tx_map. To do this I have expanded the work done in the main loop by
pushing first into tx_buffer. This allows us to pull in the dma_mapping_error
check, the tx_buffer value assignment, and the initial DMA value assignment to
the Tx descriptor. The net result is that the function reduces in size by a
little over a 100 bytes and is about 1% or 2% faster.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 13 Nov 2012 04:03:23 +0000 (04:03 +0000)]
igb: Update igb Tx flags to improve code efficiency
This change is meant to improve the efficiency of the Tx flags in igb by
aligning them with the values that will later be written into either the
cmd_type or olinfo. By doing this we are able to reduce most of these
functions to either just a simple shift followed by an or in the case of
cmd_type, or an and followed by an or in the case of olinfo.
In order to avoid type conversion errors I also adjusted the locations
where we were switching between CPU and little endian.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 13 Nov 2012 04:03:22 +0000 (04:03 +0000)]
igb: Make TSO check for CHECKSUM_PARTIAL to avoid skb_is_gso check
This change is meant to reduce the overhead for workloads that are not
using either TSO or checksum offloads. Most of the time the compiler
should jump ahead after failing this check to the VLAN check since in the
igb_tx_csum call we start with that check as well.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Akeem G. Abodunrin [Tue, 13 Nov 2012 04:03:21 +0000 (04:03 +0000)]
igb: Support for modifying UDP RSS flow hashing
This patch provides ability to enable or disable UDP RSS hashing. It gives
users option of generating RSS hash based on the UDP source and destination
ports numbers. Currently, UDP flow hash is always disabled in igb-driver.
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Carolyn Wyborny [Tue, 13 Nov 2012 04:03:20 +0000 (04:03 +0000)]
igb: Clear Go Link Disconnect for 82580 and later devices
Customers are requesting that the hw prevents PHY from establishing link
until the driver loads. This patch clears the Go Link Disconnect bit which
provides the requested behavior on parts 82580 and later.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Greg Rose [Tue, 13 Nov 2012 04:03:19 +0000 (04:03 +0000)]
ixgbevf: Reduce size of maximum rx buffer
There's no need to support up to 15k buffers since the HW is limited to
9.5k in SR-IOV mode. Instead, allocate buffers that fit and align inside
of a 32K memory buffer.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Greg Rose [Tue, 13 Nov 2012 04:03:18 +0000 (04:03 +0000)]
ixgbevf: Add flag to indicate when rx is in net poll
napi_gro_receive shouldn't be called from netpoll context. Doing
so was causing kernel panics when jumbo frames larger than 2K were set.
Add a flag to check if the Rx ring processing is occurring from interrupt
context or from netpoll context and call netif_rx() if in the polling
context.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Emil Tantilov [Tue, 13 Nov 2012 04:03:17 +0000 (04:03 +0000)]
ixgbevf: fix possible use of uninitialized variable
This patch resolves the following warning:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function ‘ixgbevf_probe’:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:1742:290: warning: ‘err’ may be used uninitialized in this function [-Wuninitialized]
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:1717:6: note: ‘err’ was declared here
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 13 Nov 2012 04:03:16 +0000 (04:03 +0000)]
ixgbevf: make sure probe fails on MSI-X enable error
This driver cannot work without MSI-X interrupts
so there is no mechanism to fall back to.
Signed-off-by: Jakub Kicinski <jakub.kicinski@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Tue, 13 Nov 2012 04:03:15 +0000 (04:03 +0000)]
ixgbe: Do not use DCA to prefetch the entire packet into the cache
The way the code was previously written it was causing DCA to prefetch the
entire packet into the cache when it was enabled. That is excessive as we
only really need the headers.
We are now prefetching the headers via software so doing this from DCA would
be redundant anyway. So clear the bit that was causing us to prefetch the
packet data and instead only use DCA for the descriptor rings.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
YOSHIFUJI Hideaki / 吉藤英明 [Mon, 12 Nov 2012 07:50:17 +0000 (07:50 +0000)]
ipv6 ndisc: Use pre-defined in6addr_linklocal_allnodes.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kirill Smelkov [Sat, 10 Nov 2012 17:11:02 +0000 (21:11 +0400)]
r8169: Drop tp arg from rtl8169_tx_vlan_tag()
Since
eab6d18d (vlan: Don't check for vlan group before
vlan_tx_tag_present.) we don't check tp->vlgrp and thus
tp is not needed in this function.
Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Dayanidhi Sreenivasan [Sun, 11 Nov 2012 22:07:55 +0000 (23:07 +0100)]
r8169: remove unused macros.
Signed-off-by: Dayanidhi Sreenivasan <dayanidhi.sreenivasan@gmail.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
David S. Miller [Sat, 10 Nov 2012 23:32:51 +0000 (18:32 -0500)]
Merge git://git./linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
Minor conflict between the BCM_CNIC define removal in net-next
and a bug fix added to net. Based upon a conflict resolution
patch posted by Stephen Rothwell.
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Fri, 9 Nov 2012 06:10:01 +0000 (06:10 +0000)]
ip6tnl: advertise tunnel param via rtnl
It is usefull for daemons that monitor link event to have the full parameters of
these interfaces when a rtnl message is sent.
It allows also to dump them via rtnetlink.
It is based on what is done for GRE tunnels.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Fri, 9 Nov 2012 06:10:00 +0000 (06:10 +0000)]
sit: advertise tunnel param via rtnl
It is usefull for daemons that monitor link event to have the full parameters of
these interfaces when a rtnl message is sent.
It allows also to dump them via rtnetlink.
It is based on what is done for GRE tunnels.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Fri, 9 Nov 2012 06:09:59 +0000 (06:09 +0000)]
ipip: advertise tunnel param via rtnl
It is usefull for daemons that monitor link event to have the full parameters of
these interfaces when a rtnl message is sent.
It allows also to dump them via rtnetlink.
It is based on what is done for GRE tunnels.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Fri, 9 Nov 2012 05:34:56 +0000 (05:34 +0000)]
gre6: fix rtnl dump messages
Spotted after a code review.
Introduced by
c12b395a46646bab69089ce7016ac78177f6001f (gre: Support GRE over
IPv6).
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Masanari Iida [Fri, 9 Nov 2012 05:02:49 +0000 (05:02 +0000)]
isdn: Fix typo in drivers/isdn
Correct spelling typo in printk within drivers/isdn
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wang Dongsheng [Fri, 9 Nov 2012 04:43:51 +0000 (04:43 +0000)]
gianfar: ethernet vanishes after restoring from hibernation
If a gianfar ethernet device is down prior to hibernating a
system, it will no longer be present upon system restore.
For example:
~# ifconfig eth0 down
~# echo disk > /sys/power/state
<trigger a restore from hibernation>
~# ifconfig eth0 up
SIOCSIFFLAGS: No such device
This happens because the restore function bails out early upon
finding devices that were not up at hibernation. In doing so,
it never gets to the netif_device_attach call at the end of
the restore function. Adding the netif_device_attach as done
here also makes the gfar_restore code consistent with what is
done in the gfar_resume code.
Cc: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Claudiu Manoil [Thu, 8 Nov 2012 22:11:41 +0000 (22:11 +0000)]
gianfar: Fix alloc_skb_resources on -ENOMEM cleanup path
Should gfar_init_bds() return with -ENOMEM inside gfar_alloc_skb_resources(),
free_skb_resources() will be called twice in a row on the "cleanup" path,
leading to duplicate kfree() calls for rx_|tx_queue->rx_|tx_skbuff resulting
in segmentation fault.
This patch prevents the segmentation fault to happen in the future
(rx_|tx_sbkbuff set to NULL), and corrects the error path handling
for gfar_init_bds().
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amerigo Wang [Thu, 8 Nov 2012 17:47:28 +0000 (17:47 +0000)]
virtio_net: use net_*_ratelimited() helpers
These can be converted to net_*_ratelimited().
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sasha Levin [Thu, 8 Nov 2012 10:23:03 +0000 (10:23 +0000)]
vmxnet3: convert BUG_ON(true) into a simple BUG()
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 8 Nov 2012 09:59:52 +0000 (09:59 +0000)]
ipip: add GSO support
In commit
6b78f16e4b (gre: add GSO support) we added GSO support to GRE
tunnels.
This patch does the same for IPIP tunnels.
Performance of single TCP flow over an IPIP tunnel is increased by 40%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve Glendinning [Thu, 8 Nov 2012 06:26:21 +0000 (06:26 +0000)]
usbnet: ratelimit kevent may have been dropped warnings
when something goes wrong, a flood of these messages can be
generated by usbnet (thousands per second). This doesn't
generally *help* the condition so this patch ratelimits the
rate of their generation.
There's an underlying problem in usbnet's kevent deferral
mechanism which needs fixing, specifically that events *can*
get dropped and not handled. This patch doesn't address this,
but just mitigates fallout caused by the current implemention.
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Thu, 8 Nov 2012 02:37:01 +0000 (02:37 +0000)]
doc: packet_mmap: update doc to implementation status
This improves the packet_mmap.txt document in the following ways:
* Add initial information about different TPACKET versions
* Add initial information about packet fanout
* Add pointer to BPF document (since this also could be of interest)
* 'Fix' minor, rather cosmetic things
Information partially taken from related commit messages.
Reported-by: Ronny Meeus <ronny.meeus@gmail.com>
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Cc: Ulisses Alonso Camaró <uaca@alumni.uv.es>
Cc: Johann Baudy <johann.baudy@gnu-log.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nick Bowler [Wed, 7 Nov 2012 06:20:34 +0000 (06:20 +0000)]
phylib: mdio: Add sysfs attribute for PHY identifiers.
This adds a phy_id sysfs attribute to MDIO devices, containing the
32-bit PHY identifier reported by the device. This attribute can
be useful when debugging problems related to phy drivers. Other
enumerable buses already have similar attributes.
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Howells [Wed, 7 Nov 2012 02:37:31 +0000 (02:37 +0000)]
Make the wanxl firmware array const
Make the wanxl firmware array const so that it goes in the read-only section.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Howells [Wed, 7 Nov 2012 02:37:24 +0000 (02:37 +0000)]
Fix the wanxl firmware to include missing constants
Fix the wanxl firmware to include missing constants such as PARITY_NONE. It
should be #including the linux/hdlc/ioctl.h header.
To make this work, we also have to guard parts of ioctl.h with !__ASSEMBLY__.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Howells [Wed, 7 Nov 2012 02:37:17 +0000 (02:37 +0000)]
UAPI: (Scripted) Disintegrate include/linux/hdlc
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Howells [Wed, 7 Nov 2012 02:37:09 +0000 (02:37 +0000)]
UAPI: Fix compilation of the wanxl firmware blob.
The wanxl firmware needs access to some bits of UAPI stuff, so the -I flag in
the Makefile needs adjusting to point at the UAPI headers.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hannes Frederic Sowa [Tue, 6 Nov 2012 16:18:41 +0000 (16:18 +0000)]
ipv6: send unsolicited neighbour advertisements to all-nodes
As documented in RFC4861 (Neighbor Discovery for IP version 6) 7.2.6.,
unsolicited neighbour advertisements should be sent to the all-nodes
multicast address.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Amerigo Wang [Thu, 8 Nov 2012 03:42:38 +0000 (03:42 +0000)]
netconsole: add oops_only module option
Some people wants to log only oops messages via netconsole,
(this is also why netoops was invented)
so add a module option for netconsole. This can be tuned
via /sys/module/netconsole/parameters/oops_only at run time
as well.
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Doug Goldstein [Sun, 21 Oct 2012 19:53:57 +0000 (19:53 +0000)]
vlan: set sysfs device_type to 'vlan'
Sets the sysfs device_type to 'vlan' for udev. This makes it easier for
applications that query network information via udev to identify vlans
instead of using strrchr().
Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nobuhiro Iwamatsu [Wed, 7 Nov 2012 21:44:27 +0000 (21:44 +0000)]
irda: sh-irda: Remove SH7377 support
The shmobile SH7377 already was removed from source tree.
This remove SH7377 support for sh-irda.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nobuhiro Iwamatsu [Wed, 7 Nov 2012 21:44:26 +0000 (21:44 +0000)]
irda: sh-irda: Remove SH7367 support
The shmobile SH7367 already was removed from source tree.
This remove SH7367 support for sh-irda.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Wed, 7 Nov 2012 21:56:33 +0000 (21:56 +0000)]
ipv6: remove rt6i_peer_genid from rt6_info and its handler
6431cbc25f(Create a mechanism for upward inetpeer propagation into routes)
introduces these codes, but this mechanism is never enabled since
rt6i_peer_genid always is zero whether it is not assigned or assigned by
rt6_peer_genid(). After
5943634fc5 (ipv4: Maintain redirect and PMTU info
in struct rtable again), the ipv4 related codes of this mechanism has been
removed, I think we maybe able to remove them now.
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Coolidge [Wed, 7 Nov 2012 14:39:19 +0000 (14:39 +0000)]
net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
cdc_eem frames might need to contain 802.1Q VLAN Ethernet frames.
URB/skb sizing from usbnet will default to the hard_mtu,
so account for the VLAN header by expanding that via hard_header_len
Signed-off-by: Ian Coolidge <iancoolidge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Coolidge [Wed, 7 Nov 2012 14:39:18 +0000 (14:39 +0000)]
usb: gadget: g_ether: fix frame size check for 802.1Q
Checking skb->len against ETH_FRAME_LEN assumes a 1514
ethernet frame size. With an 802.1Q VLAN header, ethernet
frame length can now be 1518. Validate frame length against that.
Signed-off-by: Ian Coolidge <iancoolidge@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 8 Nov 2012 00:08:42 +0000 (19:08 -0500)]
Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
Included changes:
- minimal fixes to the packet layout to avoid the __packed attribute when not
needed
- new packet type called UNICAST_4ADDR: in this packet it is possible to find
both source and destination node (in the classic UNICAST header only the
destination field exists).
- a new feature: Distributed ARP Table (D.A.T.). It aims to reduce ARP lookups
latency by means of a simil-DHT approach.
Nicolas Dichtel [Wed, 7 Nov 2012 05:05:38 +0000 (05:05 +0000)]
ndisc: fix a typo in a comment in ndisc_recv_na()
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vipul Pandya [Wed, 7 Nov 2012 03:45:46 +0000 (03:45 +0000)]
cxgb4: Fix initialization of SGE_CONTROL register
INGPADBOUNDARY_MASK is already shifted. No need to shift it again. On reloading
a driver it was resulting in a bad SGE FL MTU sizes [1536, 9088] error. This
only causes an issue on systems that have L1 cache size of 32B, 128B, 512B,
2048B or 4096B.
Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Wei Yongjun [Wed, 7 Nov 2012 02:54:30 +0000 (02:54 +0000)]
ksz884x: use module_pci_driver to simplify the code
Use the module_pci_driver() macro to make the code simpler
by eliminating module_init and module_exit calls.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lee Jones [Tue, 6 Nov 2012 23:55:03 +0000 (23:55 +0000)]
isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES
It doesn't make much sense to enable ISDN services if you don't
intend to connect to a network. Therefore insisting that ISDN
depends on NETDEVICES seems logical. We can then remove any
guards mentioning NETDEVICES inside all subordinate drivers.
This also has the nice side-effect of fixing the warning below
when ISDN_I4L && !CONFIG_NETDEVICES at compile time.
This patch fixes:
drivers/isdn/i4l/isdn_common.c: In function ‘isdn_ioctl’:
drivers/isdn/i4l/isdn_common.c:1278:8: warning: unused variable ‘s’ [-Wunused-variable]
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merav Sicron [Wed, 7 Nov 2012 00:45:48 +0000 (00:45 +0000)]
bnx2x: Support loading cnic resources at run-time
This patch replaces the BCM_CNIC define with a flag which can change at run-time
and which does not use the CONFIG_CNIC kconfig option.
For the PF/hypervisor driver cnic is always supported, however allocation of
cnic resources and configuration of the HW for offload mode is done only when
the cnic module registers bnx2x.
Signed-off-by: Merav Sicron <meravs@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merav Sicron [Wed, 7 Nov 2012 00:45:47 +0000 (00:45 +0000)]
bnx2x: HSI change for 'update' ramrod
This patch updates the driver-FW HSI to support changes to the 'update' ramrod
(FW supports this change since 7.8.2). This ramrod is sent when the cnic module
registers bnx2x, to enable changing the nic_mode configuration in HW at
run-time.
Signed-off-by: Merav Sicron <meravs@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paul Chavent [Tue, 6 Nov 2012 23:10:47 +0000 (23:10 +0000)]
packet: tx_ring: allow the user to choose tx data offset
The tx data offset of packet mmap tx ring used to be :
(TPACKET2_HDRLEN - sizeof(struct sockaddr_ll))
The problem is that, with SOCK_RAW socket, the payload (14 bytes after
the beginning of the user data) is misaligned.
This patch allows to let the user gives an offset for it's tx data if
he desires.
Set sock option PACKET_TX_HAS_OFF to 1, then specify in each frame of
your tx ring tp_net for SOCK_DGRAM, or tp_mac for SOCK_RAW.
Signed-off-by: Paul Chavent <paul.chavent@onera.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Frank Li [Tue, 6 Nov 2012 20:14:49 +0000 (20:14 +0000)]
net: fec: reduce spin lock time in fec_ptp_adjfreq
move below calculate out of spin lock section
diff = fep->cc.mult;
diff *= ppb;
diff = div_u64(diff, 1000000000ULL);
diff is local variable and not neccesary in spin lock
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Frank Li [Tue, 6 Nov 2012 20:14:43 +0000 (20:14 +0000)]
net: fec: default select FEC_PTP at mx6 platform
Remove PPS.
Limit FEC_PTP option for i.MX chip only.
FEC_PTP default is on at mx6 platform.
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:57 +0000 (08:14 +0000)]
net/at91_ether: fix comment and style issues
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:56 +0000 (08:14 +0000)]
net/at91_ether: clean up print outs
Convert all printk's to netdev_ counterparts and fix up some
printed texts.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:55 +0000 (08:14 +0000)]
net/at91_ether: drop board_data private struct member
No longer used after gpio phy interrupt support was
removed from at91_ether.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:54 +0000 (08:14 +0000)]
net/at91_ether: use stat function from macb
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:53 +0000 (08:14 +0000)]
net/at91_ether: use macb functions for get/set hwaddr
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:52 +0000 (08:14 +0000)]
net/macb: export macb_set_hwaddr and macb_get_hwaddr
for usage in at91_ether driver.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:51 +0000 (08:14 +0000)]
net/macb: support reversed hw addr
This is used on one AT91RM9200 board where a bootloader stores
the Ethernet address in the wrong order.
Support this on macb so address setting functions can be shared
with the at91_ether driver.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joachim Eastwood [Wed, 7 Nov 2012 08:14:50 +0000 (08:14 +0000)]
net/macb: check all address registers sets
The macb driver in u-boot uses the first register set while
the at91_ether driver in u-boot uses the second register set.
By checking all register set, like at91_ether does, this code
can be shared between the drivers.
This only changes behavior on macb if no vaild address
is found in the first register set.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 6 Nov 2012 17:49:01 +0000 (17:49 +0000)]
be2net: remove adapter->eq_next_idx
It's not used anywhere
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 6 Nov 2012 17:49:00 +0000 (17:49 +0000)]
be2net: remove roce on lancer
roce interface is suppored only on Skyhawk-R.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 6 Nov 2012 17:48:59 +0000 (17:48 +0000)]
be2net: fix access to SEMAPHORE reg
The SEMAPHORE register was being accessed from the csr BAR space. This BAR
may not be available in some Skyhawk-R configurations. Instead, access this
register via the PCI config space (it's available there too).
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 6 Nov 2012 17:48:58 +0000 (17:48 +0000)]
be2net: re-factor bar mapping code
1) separate NIC and roce bar mapping code
2) parse sli_intf::if_type inside be_map_pci_bars() as if_type must be
used only to identify bars.
3) Use pci_iomap/unmap() routines
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 6 Nov 2012 17:48:57 +0000 (17:48 +0000)]
be2net: do not use sli_family to identify skyhawk-R chip
SKYHAWK_FAMILY will not identify all revisions of the chip.
Use device-id check (skyhawk_chip() macro) instead.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 6 Nov 2012 17:48:56 +0000 (17:48 +0000)]
be2net: fix wrong usage of adapter->generation
adapter->generation was being incorrectly set as BE_GEN3 for Skyhawk-R.
Replace generation usage with XXX_chip() macros to identify the chip.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 6 Nov 2012 17:48:55 +0000 (17:48 +0000)]
be2net: remove LANCER A0 workaround
It's not needed anymore.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vipul Pandya [Tue, 6 Nov 2012 03:37:09 +0000 (03:37 +0000)]
cxgb4: Initialize data structures before using.
We should not assume reserve fields to be don't cares as fields may change.
Clearing data structures before using.
Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Leblond [Tue, 6 Nov 2012 02:10:10 +0000 (02:10 +0000)]
af-packet: fix oops when socket is not present
Due to a NULL dereference, the following patch is causing oops
in normal trafic condition:
commit
c0de08d04215031d68fa13af36f347a6cfa252ca
Author: Eric Leblond <eric@regit.org>
Date: Thu Aug 16 22:02:58 2012 +0000
af_packet: don't emit packet on orig fanout group
This buggy patch was a feature fix and has reached most stable
branches.
When skb->sk is NULL and when packet fanout is used, there is a
crash in match_fanout_group where skb->sk is accessed.
This patch fixes the issue by returning false as soon as the
socket is NULL: this correspond to the wanted behavior because
the kernel as to resend the skb to all the listening socket in
this case.
Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paolo Valente [Mon, 5 Nov 2012 20:29:24 +0000 (20:29 +0000)]
pkt_sched: enable QFQ to support TSO/GSO
If the max packet size for some class (configured through tc) is
violated by the actual size of the packets of that class, then QFQ
would not schedule classes correctly, and the data structures
implementing the bucket lists may get corrupted. This problem occurs
with TSO/GSO even if the max packet size is set to the MTU, and is,
e.g., the cause of the failure reported in [1]. Two patches have been
proposed to solve this problem in [2], one of them is a preliminary
version of this patch.
This patch addresses the above issues by: 1) setting QFQ parameters to
proper values for supporting TSO/GSO (in particular, setting the
maximum possible packet size to 64KB), 2) automatically increasing the
max packet size for a class, lmax, when a packet with a larger size
than the current value of lmax arrives.
The drawback of the first point is that the maximum weight for a class
is now limited to 4096, which is equal to 1/16 of the maximum weight
sum.
Finally, this patch also forcibly caps the timestamps of a class if
they are too high to be stored in the bucket list. This capping, taken
from QFQ+ [3], handles the unfrequent case described in the comment to
the function slot_insert.
[1] http://marc.info/?l=linux-netdev&m=
134968777902077&w=2
[2] http://marc.info/?l=linux-netdev&m=
135096573507936&w=2
[3] http://marc.info/?l=linux-netdev&m=
134902691421670&w=2
Signed-off-by: Paolo Valente <paolo.valente@unimore.it>
Tested-by: Cong Wang <amwang@redhat.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 5 Nov 2012 16:20:42 +0000 (16:20 +0000)]
mlx4: change TX coalescing defaults
mlx4 currently uses a too high tx coalescing setting, deferring
TX completion interrupts by up to 128 us.
With the recent skb_orphan() removal in commit
8112ec3b872,
performance of a single TCP flow is capped to ~4 Gbps, unless
we increase tcp_limit_output_bytes.
I suggest using 16 us instead of 128 us, allowing a finer control.
Performance of a single TCP flow is restored to previous levels,
while keeping TCP small queues fully enabled with default sysctl.
This patch is also a BQL prereq.
Reported-by: Vimalkumar <j.vimal@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yevgeny Petrilin <yevgenyp@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Antonio Quartulli [Sun, 14 Oct 2012 15:19:19 +0000 (17:19 +0200)]
batman-adv: enable fast client detection using unicast_4addr packets
The "early client detection mechanism" can be extended to find new clients by
means of unicast_4addr packets.
The unicast_4addr packet contains as well as the broadcast packet (which is
currently used in this mechanism) the address of the originating node and can
therefore be used to install new entries in the Global Translation Table
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Martin Hundebøll [Fri, 20 Apr 2012 15:02:45 +0000 (17:02 +0200)]
batman-adv: Add get_ethtool_stats() support for DAT
Added additional counters for D.A.T.
Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Antonio Quartulli [Wed, 8 Aug 2012 16:50:57 +0000 (18:50 +0200)]
batman-adv: Distributed ARP Table - add runtime switch
This patch adds a runtime switch that enables the user to turn the DAT feature
on or off at runtime
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Antonio Quartulli [Sun, 6 Nov 2011 11:23:55 +0000 (12:23 +0100)]
batman-adv: Distributed ARP Table - add compile option
This patch makes it possible to decide whether to include DAT within the
batman-adv binary or not.
It is extremely useful when the user wants to reduce the size of the resulting
module by cutting off any not needed feature.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Antonio Quartulli [Sun, 26 Jun 2011 01:37:18 +0000 (03:37 +0200)]
batman-adv: Distributed ARP Table - add snooping functions for ARP messages
In case of an ARP message going in or out the soft_iface, it is intercepted and
a special action is performed. In particular the DHT helper functions previously
implemented are used to store all the ARP entries belonging to the network in
order to provide a fast and unicast lookup instead of the classic broadcast
flooding mechanism.
Each node stores the entries it is responsible for (following the DHT rules) in
its soft_iface ARP table. This makes it possible to reuse the kernel data
structures and functions for ARP management.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Antonio Quartulli [Thu, 2 Jun 2011 10:29:51 +0000 (12:29 +0200)]
batman-adv: Distributed ARP Table - add ARP parsing functions
ARP messages are now parsed to make it possible to trigger special actions
depending on their types (snooping).
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Antonio Quartulli [Sat, 30 Jun 2012 18:01:19 +0000 (20:01 +0200)]
batman-adv: Distributed ARP Table - implement local storage
Since batman-adv cannot inter-operate with the host ARP table, this patch
introduces a batman-adv private storage for ARP entries exchanged within DAT.
This storage will represent the node local cache in the DAT protocol.
Signed-off-by: Antonio Quartulli <ordex@autistici.org>