Wei Liu [Mon, 22 Apr 2013 02:20:41 +0000 (02:20 +0000)]
xen-netfront: reduce gso_max_size to account for max TCP header
The maximum packet including header that can be handled by netfront / netback
wire format is 65535. Reduce gso_max_size accordingly.
Drop skb and print warning when skb->len > 65535. This can 1) save the effort
to send malformed packet to netback, 2) help spotting misconfiguration of
netfront in the future.
Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This patch sets the coherent DMA mask to 64-bit after the be2net driver has
been acknowledged that the system is 64-bit DMA capable. The coherent DMA
mask is examined by the Intel IOMMU driver to determine whether to allow
pass through context mapping for all devices. With this patch, the be2net
driver combined with be2net compatible hardware provides comparable
performance to the case where vt-d is disabled. The main use-case for this
change is to decrease the time necessary to copy virtual machine memory
during KVM live migration instantiations.
Signed-off-by: Craig Hada <craig.hada@hp.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Use GET_PROFILE_CONFIG_V1 cmd for BE3-R, to query the maximum number of
TX rings available per function. On SH-R the same is queried via the
GET_FUNCTION_CONFIG cmd.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Avoid flashing BE3 UFI on BE3-R chip by verifying asic_revision
number of the chip.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Don't log "Out of MCCQ wrbs" msg. When the driver doesn't receive any
response from the FW it already logs a "FW not responding" message.
The driver runs out of MCCQ wrbs much later. Also, this message can
swamp the kernel log in HW/FW error scenarios.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Skyhawk-R and BE3-R (SuperNIC profile) require V2 version
of TXQ_CREATE cmd to be used.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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>
bnx2x: allow nvram test to run when device is down
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>
Patrick McHardy [Sun, 21 Apr 2013 00:09:34 +0000 (00:09 +0000)]
qeth: fix VLAN related compilation errors
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_add_vlan_mc':
>> drivers/s390/net/qeth_l3_main.c:1662:3: error: too few arguments to function '__vlan_find_dev_deep'
include/linux/if_vlan.h:88:27: note: declared here
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_add_vlan_mc6':
>> drivers/s390/net/qeth_l3_main.c:1723:3: error: too few arguments to function '__vlan_find_dev_deep'
include/linux/if_vlan.h:88:27: note: declared here
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_free_vlan_addresses4':
>> drivers/s390/net/qeth_l3_main.c:1767:2: error: too few arguments to function '__vlan_find_dev_deep'
include/linux/if_vlan.h:88:27: note: declared here
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_free_vlan_addresses6':
>> drivers/s390/net/qeth_l3_main.c:1797:2: error: too few arguments to function '__vlan_find_dev_deep'
include/linux/if_vlan.h:88:27: note: declared here
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_process_inbound_buffer':
>> drivers/s390/net/qeth_l3_main.c:1980:6: error: too few arguments to function '__vlan_hwaccel_put_tag'
include/linux/if_vlan.h:234:31: note: declared here
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_verify_vlan_dev':
>> drivers/s390/net/qeth_l3_main.c:2089:3: error: too few arguments to function '__vlan_find_dev_deep'
include/linux/if_vlan.h:88:27: note: declared here
Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Sun, 21 Apr 2013 00:09:32 +0000 (00:09 +0000)]
net: vlan: fix up vlan_proto_idx() for CONFIG_BUG=n
Add missing return statement for CONFIG_BUG=n.
Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
The reason is that in vlan_info_rcu_free() we don't take the VLAN protocol
into account when iterating over the vlan_devices_array.
Reported-by: Cong Wang <amwang@redhat.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Tested-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Apr 2013 21:55:29 +0000 (17:55 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:
====================
The following patchset contains a small batch of Netfilter
updates for your net-next tree, they are:
* Three patches that provide more accurate error reporting to
user-space, instead of -EPERM, in IPv4/IPv6 netfilter re-routing
code and NAT, from Patrick McHardy.
* Update copyright statements in Netfilter filters of
Patrick McHardy, from himself.
* Add Kconfig dependency on the raw/mangle tables to the
rpfilter, from Florian Westphal.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Andy Gospodarek [Tue, 16 Apr 2013 14:46:00 +0000 (14:46 +0000)]
bond: add support to read speed and duplex via ethtool
This patch adds support for the get_settings ethtool op to the bonding
driver. This was motivated by users who wanted to get the speed of the
bond and compare that against throughput to understand utilization.
The behavior before this patch was added was problematic when computing
line utilization after trying to get link-speed and throughput via SNMP.
Output from ethtool looks like this for a round-robin bond:
Settings for bond0:
Supported ports: [ ]
Supported link modes: Not reported
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes: Not reported
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 11000Mb/s
Duplex: Full
Port: Other
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
MDI-X: Unknown
Link detected: yes
I tested this and verified it works as expected. A test was also done
on a version backported to an older kernel and it worked well there.
v2: Switch to using ethtool_cmd_speed_set to set speed, added check to
SLAVE_IS_OK for each slave in bond, dropped mode-specific calculations
as they were not needed, and set port type to 'Other.'
v3: Fix useless assignment and checkpatch warning.
Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 01:29:11 +0000 (01:29 +0000)]
packet: move hw/sw timestamp extraction into a small helper
This patch introduces a small, internal helper function, that is used by
PF_PACKET. Based on the flags that are passed, it extracts the packet
timestamp in the receive path. This is merely a refactoring to remove
some duplicate code in tpacket_rcv(), to make it more readable, and to
enable others to use this function in PF_PACKET as well, e.g. for TX.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 01:29:10 +0000 (01:29 +0000)]
net: socket: move ktime2ts to ktime header api
Currently, ktime2ts is a small helper function that is only used in
net/socket.c. Move this helper into the ktime API as a small inline
function, so that i) it's maintained together with ktime routines,
and ii) also other files can make use of it. The function is named
ktime_to_timespec_cond() and placed into the generic part of ktime,
since we internally make use of ktime_to_timespec(). ktime_to_timespec()
itself does not check the ktime variable for zero, hence, we name
this function ktime_to_timespec_cond() for only a conditional
conversion, and adapt its users to it.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Apr 2013 20:16:42 +0000 (16:16 -0400)]
Merge branch 'qlcnic'
Rajesh Borundia says:
====================
* "qlcnic: Change 82xx adapter VLAN id endian type".
- Adapter requires VLAN id in little endian. VLAN id was being
converted to __le16 and then passed as a parameter. Pass VLAN id
as u16 and then use cpu_to_le16 at appropriate places. It is
appropriate for net-next as SR-IOV patches have a dependency on it.
* "qlcnic: Fix loopback test for SR-IOV PF".
- It is appropriate for net-next as change is needed for SRIOV PF
only.
* Remaining patches add enhancements to SR-IOV functionality like
- FLR handling
- Adapter reset recovery handling
- iproute2 tool support for configuring MAC address, Tx rate and
VLAN id.
- Mailbox polling support for SR-IOV PF in case mailbox interrupts
are disabled.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
o Do not disable mailbox interrupts while running
loopback test through SR-IOV PF.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
o Add support for VLAN id configuration per VF using
iproute2 tool.
o VLAN id's 1-4094 are treated as PVID by the PF and
Guest VLAN tagging is not allowed by default.
o PVID is disabled when the VLAN id is set to 0
o Guest VLAN tagging is allowed when the VLAN id is set to 4095.
o Only one Guest VLAN id is supported.
o VLAN id can be changed only when the VF driver is not loaded.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
o Add support for MAC address and Tx rate configuration
per VF via iproute2 tool.
o Tx rate change is allowed while the guest is running
and the VF driver is loaded.
o MAC address change is allowed only when VF driver
is not loaded.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
o FLR from Hypervisor - When hypervisor issues a VF FLR request,
adapter notifies the parent PF driver of the FLR request for PF
driver to perform any cleanup on behalf of that VF.
o FLR from VF Driver - VF driver may initiate a VF FLR request,
if VF state needs to be cleaned up before a re-initialization.
VF re-initialization during kdump is an example.
o PF driver cleans up all resources allocated on behalf of a VF,
on VF FLR notifications from the adapter or from the VF driver.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
o 82xx adapter requires VLAN id in little endian format.
Instead of passing vlan id parameter as __le16, pass the
parameter as u16 and use cpu_to_le16 at appropriate places.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Apr 2013 19:37:09 +0000 (15:37 -0400)]
Merge branch 'netlink-mmap'
Patrick McHardy says:
====================
The following patches contain an implementation of memory mapped I/O for
netlink. The implementation is modelled after AF_PACKET memory mapped I/O
with a few differences:
- In order to perform memory mapped I/O to userspace, the kernel allocates
skbs with the data area pointing to the data area of the mapped frames.
All netlink subsystems assume a linear data area, so for the sake of
simplicity, the mapped data area is not attached to the paged area but
to skb->data. This requires introduction of a special skb alloction
function that just allocates an skb head without the data area. Since this
is a quite rare use case, I introduced a new function based on __alloc_skb
instead of splitting it up into head and data alloction. The alternative
would be to introduce an __alloc_skb_head and __alloc_skb_data function,
which would actually be useful for a specific error case in memory mapped
netlink, but would require a couple of extra instructions for the common
skb allocation case, so it doesn't really seem worth it.
In order to get the destination memory area for skb->data before message
construction, memory mapped netlink I/O needs to look up the destination
socket during allocation instead of during transmission because the
ring is owned by the receiveing socket/process. A special skb allocation
function (netlink_alloc_skb) taking the destination pid as an argument is
used for this, all subsystems that want to support memory mapped I/O need
to use this function, automatic fallback to the receive queue happens
for unconverted subsystems. Dumps automatically use memory mapped I/O if
the receiving socket has enabled it.
The visible effect of looking up the destination socket during allocation
instead of transmission is that message ordering in userspace might
change in case allocation and transmission aren't performed atomically.
This usually doesn't matter since most subsystems have a BKL-like lock
like the rtnl mutex, to my knowledge the currently only existing case
where it might matter is nfnetlink_queue combined with the recently
introduced batched verdicts, but a) that subsystem already includes
sequence numbers which allow userspace to reorder messages in case it
cares to, also the reodering window is quite small and b) with memory
mapped transmission batching can be performed in a subsystem indepandant
manner.
- AF_NETLINK contains flow control for database dumps, with regular I/O
dump continuation are triggered based on the sockets receive queue space
and by recvmsg() calls. Since with memory mapped I/O there are no
recvmsg() calls under normal operation, this is done in netlink_poll(),
under the assumption that userspace has processed all pending frames
before invoking poll(), thus the ring is expected to have room for new
messages. Dumps currently don't benefit as much as they could from
memory mapped I/O because each single continuation requires a poll()
call. A more agressive approach seems like a good idea to me, especially
in case the socket is not subscribed to any multicast groups (IOW only
receiving explicitly requested data).
Besides that, the memory mapped netlink implementation extends the states
defined by AF_PACKET between userspace and the kernel by a SKIP status, this
is intended for the case that userspace wants to queue frames (specifically
when using nfnetlink_queue, an IDS and stream reassembly, requested by
Eric Leblond) for a longer period of time. The kernel skips over all frames
marked with SKIP when looking or unused frames and only fails when not finding
a free frame or when having skipped the entire ring.
Also noteworthy is memory mapped sendmsg: the kernel performs validation
of messages before accepting and processing them, in order to prevent
userspace from changing the messages contents after validation, the
kernel checks that the ring is only mapped once and the file descriptor
is not shared (in order to avoid having userspace set up another mapping
after the first mentioned check). If either of both is not true, the
message copied to an allocated skb and processed as with regular I/O.
I'd especially appreciate review of this part since I'm not really versed
in memory, file and process management,
The remaining interesting details are included in the changelogs of the
individual patches and the documentation, so I won't repeat them here.
As an example, nfnetlink_queue is convererted to support memory mapped
I/O. Other subsystems that would probably benefit are nfnetlink_log,
audit and maybe ISCSI, not sure.
Following are some numbers collected by Florian Westphal based on a
slightly older version, which included an experimental patch for the
nfnetlink_queue ordering issue.
===
Test hardware is a 12-core machine
Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz
ixgbe interfaces are used (i.e., multiqueue nics).
irqs are distributed across the cpus.
I've made several tests.
The simple one consists of 3GBit UDP traffic, packets are 1500 bytes
in size (i.e., no fragmentation), with a single nfqueue
and the test client programs in libmnl examples directory.
Packets are sent from one /24 net to another /24 net, i.e.
there are a few hundred flows active at any given time.
I've also tested with snort, but I disabled all rules.
6Gbit UDP traffic is generated in the snort case, and
6 nfqueues are used (i.e., 6 snorts run in parallel).
I've tested with 3 different kernels, all based on 3.7.1.
- 3.7.1, without the mmap patches
- 3.7.1, with Patricks mmap patches
- 3.7.1, with mmap patches and extended spinlock to ensure packet ids are
monotonically increasing and cannot be re-ordered. This is what we
currently ship in our product.
[ the spinlock that is extended is the per nfqueue spinlock, it will
be held from the time the netlink skb is allocated until the netlink
skb is sent to userspace:
snort is normally used in "batch mode", i.e., after processing 25 packets
a single "batch verdict" is sent to accept the packets seen so far.
"mmap snort" means RX_RING + sendmsg(), i.e. TX_RING is not used at this
time (except where noted below).
One reason is that snort has a reload thread, so kernel needs to copy;
also in the snort case no payload rewrite takes place, so compared
to the rx path the tx path is cheap.
Results:
3.7.1, without mmap patches, i.e. recv()+sendmsg() for everyone
nfq-queue: 1.7 gbit out
snort-recv-batch-25 5.1 gbit out
snort-recv-no-batch 3.1 gbit out
3.7.1 + mmap + without extended spinlocked section
nfq-queue: 1.7 gbit out (recv/sendmsg)
nfq-queue-mmap: 2.4 gbit out
snort-mmap-batch-25 5.6 gbit out (warning: since ids can be
re-ordered, this version is "broken").
snort-recv-batch-25 5.1 gbit out
snort-mmap-no-batch 4.6 gbit out (i.e., one verdict per packet)
Kernel 3.7.1 + mmap + extended spinlock section:
nfq-queue: 1.4 gbit out
nfq-queue-mmap: 2.3 gbit out
snort: 5.6 gbit out
Conclusions:
- The "extended spinlocked section" hurts performance in the
single queue case; with 6 snorts there is no measureable slowdown.
- I tried to re-write the mmap-snort to work without batch verdicts, but
results were not very encouraging:
snort-mmap-batch-25 5.6 gbit out (what we currenlty ship)
snort-recv-batch-25 5.1 gbit out (without using mmap)
snort-mmap-batch-1 4.6 gbit out (with mmap but without batch verdicts)
snort-mmap-txring-25 5.2 gbit out (with mmap but without batch verdicts)
snort-mmap-txring-1 4.6 gbit out (with mmap but without batch verdicts)
The difference between the last two is that in the txring-25 case, we
put a verdict into the tx ring after every packet, but will only
invoke sendmsg(, NULL, 0) after processing 25 packets. So the only
difference is the number of sendmsg calls/context switches.
So, i.o.w, kernel 3.7.1 + mmap + the extra locking crap is faster
than 3.7.1 + mmap-without-extra-locking and single-verdict-per packet.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:47:05 +0000 (06:47 +0000)]
netlink: add flow control for memory mapped I/O
Add flow control for memory mapped RX. Since user-space usually doesn't
invoke recvmsg() when using memory mapped I/O, flow control is performed
in netlink_poll(). Dumps are allowed to continue if at least half of the
ring frames are unused.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:47:04 +0000 (06:47 +0000)]
netlink: implement memory mapped recvmsg()
Add support for mmap'ed recvmsg(). To allow the kernel to construct messages
into the mapped area, a dataless skb is allocated and the data pointer is
set to point into the ring frame. This means frames will be delivered to
userspace in order of allocation instead of order of transmission. This
usually doesn't matter since the order is either not determinable by
userspace or message creation/transmission is serialized. The only case
where this can have a visible difference is nfnetlink_queue. Userspace
can't assume mmap'ed messages have ordered IDs anymore and needs to check
this if using batched verdicts.
For non-mapped sockets, nothing changes.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:47:03 +0000 (06:47 +0000)]
netlink: implement memory mapped sendmsg()
Add support for mmap'ed sendmsg() to netlink. Since the kernel validates
received messages before processing them, the code makes sure userspace
can't modify the message contents after invoking sendmsg(). To do that
only a single mapping of the TX ring is allowed to exist and the socket
must not be shared. If either of these two conditions does not hold, it
falls back to copying.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:47:02 +0000 (06:47 +0000)]
netlink: add mmap'ed netlink helper functions
Add helper functions for looking up mmap'ed frame headers, reading and
writing their status, allocating skbs with mmap'ed data areas and a poll
function.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:47:01 +0000 (06:47 +0000)]
netlink: mmaped netlink: ring setup
Add support for mmap'ed RX and TX ring setup and teardown based on the
af_packet.c code. The following patches will use this to add the real
mmap'ed receive and transmit functionality.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:47:00 +0000 (06:47 +0000)]
netlink: add netlink_skb_set_owner_r()
For mmap'ed I/O a netlink specific skb destructor needs to be invoked
after the final kfree_skb() to clean up state. This doesn't work currently
since the skb's ownership is transfered to the receiving socket using
skb_set_owner_r(), which orphans the skb, thereby invoking the destructor
prematurely.
Since netlink doesn't account skbs to the originating socket, there's no
need to orphan the skb. Add a netlink specific skb_set_owner_r() variant
that does not orphan the skb and use a netlink specific destructor to
call sock_rfree().
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:46:59 +0000 (06:46 +0000)]
netlink: don't orphan skb in netlink_trim()
Netlink doesn't account skbs to the sending socket, so the there's no
need to orphan the skb before trimming it.
Removing the skb_orphan() call is required for mmap'ed netlink, which uses
a netlink specific skb destructor that must not be invoked before the
final freeing of the skb.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:46:58 +0000 (06:46 +0000)]
net: add function to allocate sk_buff head without data area
Add a function to allocate a sk_buff head without any data. This will
be used by memory mapped netlink to attach data from the mmaped area
to the skb.
Additionally change skb_release_all() to check whether the skb has a
data area to allow the skb destructor to clear the data pointer in case
only a head has been allocated.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:46:57 +0000 (06:46 +0000)]
netlink: rename ssk to sk in struct netlink_skb_params
Memory mapped netlink needs to store the receiving userspace socket
when sending from the kernel to userspace. Rename 'ssk' to 'sk' to
avoid confusion.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Apr 2013 18:46:27 +0000 (14:46 -0400)]
Merge branch '8021ad'
Patrick McHardy says:
====================
The following patches add support for 802.1ad (provider tagging) to the
VLAN driver. The patchset consists of the following parts:
- renaming of the NET_F_HW_VLAN feature flags to indicate that they only
operate on CTAGs
- preparation for 802.1ad VLAN filtering offload by adding a proto argument
to the rx_{add,kill}_vid net_device_ops callbacks
- preparation of the VLAN code to support multiple protocols by making the
protocol used for tagging a property of the VLAN device and converting
the device lookup functions accordingly
- second step of preparation of the VLAN code by making the packet tagging
functions take a protocol argument
- introducation of 802.1ad support in the VLAN code, consisting mainly of
checking for ETH_P_8021AD in a couple of places and testing the netdevice
offload feature checks to take the protocol into account
- announcement of STAG offloading capabilities in a couple of drivers for
virtual network devices
The patchset is based on net-next.git and has been tested with single and
double tagging with and without HW acceleration (for CTAGs).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Fri, 19 Apr 2013 02:04:32 +0000 (02:04 +0000)]
net: vlan: announce STAG offload capability in some drivers
- macvlan: propagate STAG filtering capabilities from underlying device
- ifb: announce STAG tagging support in addition to CTAG tagging support
- veth: announce STAG tagging/stripping support in addition to CTAG support
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Fri, 19 Apr 2013 02:04:31 +0000 (02:04 +0000)]
net: vlan: add 802.1ad support
Add support for 802.1ad VLAN devices. This mainly consists of checking for
ETH_P_8021AD in addition to ETH_P_8021Q in a couple of places and check
offloading capabilities based on the used protocol.
Configuration is done using "ip link":
# ip link add link eth0 eth0.1000 \
type vlan proto 802.1ad id 1000
# ip link add link eth0.1000 eth0.1000.1000 \
type vlan proto 802.1q id 1000
52:54:00:12:34:56 > 92:b1:54:28:e4:8c, ethertype 802.1Q (0x8100), length 106: vlan 1000, p 0, ethertype 802.1Q, vlan 1000, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
20.1.0.2 > 20.1.0.1: ICMP echo request, id 3003, seq 8, length 64
92:b1:54:28:e4:8c > 52:54:00:12:34:56, ethertype 802.1Q-QinQ (0x88a8), length 106: vlan 1000, p 0, ethertype 802.1Q, vlan 1000, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 47944, offset 0, flags [none], proto ICMP (1), length 84)
20.1.0.1 > 20.1.0.2: ICMP echo reply, id 3003, seq 8, length 64
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Fri, 19 Apr 2013 02:04:30 +0000 (02:04 +0000)]
net: vlan: add protocol argument to packet tagging functions
Add a protocol argument to the VLAN packet tagging functions. In case of HW
tagging, we need that protocol available in the ndo_start_xmit functions,
so it is stored in a new field in the skb. The new field fits into a hole
(on 64 bit) and doesn't increase the sks's size.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Fri, 19 Apr 2013 02:04:28 +0000 (02:04 +0000)]
net: vlan: prepare for 802.1ad VLAN filtering offload
Change the rx_{add,kill}_vid callbacks to take a protocol argument in
preparation of 802.1ad support. The protocol argument used so far is
always htons(ETH_P_8021Q).
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Fri, 19 Apr 2013 02:04:27 +0000 (02:04 +0000)]
net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_*
Rename the hardware VLAN acceleration features to include "CTAG" to indicate
that they only support CTAGs. Follow up patches will introduce 802.1ad
server provider tagging (STAGs) and require the distinction for hardware not
supporting acclerating both.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Apr 2013 18:19:07 +0000 (14:19 -0400)]
Merge branch 'intel'
Jeff Kirsher says:
====================
This series contains updates to ixgbe and igb.
The ixgbe changes contains 2 patches from the community, one which is a
fix from akepner to fix a issue where netif_running() in shutdown was
not done under rtnl_lock. The other community fix from Joe Perches
cleans up #ifdef CONFIG_DEBUG_FS which is no longer necessary. The
last ixgbe patch, from Jacob Keller, adds support for WoL on 82559
SFP+ LOM.
The remaining patches are against igb, 10 of which were previously
submitted in a pull request where changes were requested.
The following igb patches:
igb: Support for 100base-fx SFP
igb: Support to read and export SFF-8472/8079 data
are v2 based on feedback from Dan Carpenter and Ben Hutchings in
the previous pull request.
The largest set of changes are in my patch to cleanup code comments
and whitespace to align the igb driver with the networking style of
code comments. While cleaning up the code comments, fixed several
other whitespace/checkpatch.pl code formatting issues.
Other notable igb patches are EEE capable devices query the PHY to
determine what the link partner is advertising, added support for
i354 devices and added support for spoofchk config.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Matthew Vick [Thu, 21 Feb 2013 03:32:52 +0000 (03:32 +0000)]
igb: Enable EEE LP advertisement
On EEE-capable devices, query the PHY to determine what the link partner is
advertising.
Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jeff Kirsher [Sat, 23 Feb 2013 07:29:56 +0000 (07:29 +0000)]
igb: Fix code comments and whitespace
Aligns the multi-line code comments with the desired style for the
networking tree. Also cleaned up whitespace issues found during the
cleanup of code comments (i.e. remove unnecessary blank lines,
use tabs where possible, properly wrap lines and keep strings on a
single line)
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Alexander Duyck [Tue, 12 Feb 2013 02:31:01 +0000 (02:31 +0000)]
igb: Use rx/tx_itr_setting when setting up initial value of itr
It turns out that the InterruptThrottleRate module parameter was only
having the effect of locking the ITR at the starting ITR value. This was
because the values stored in rx_itr_setting and tx_itr_setting were being
ignored when configuring the initial itr_val of the q_vector.
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>
Alexander Duyck [Thu, 7 Feb 2013 08:55:46 +0000 (08:55 +0000)]
igb: Pull adapter out of main path in igb_xmit_frame_ring
We only need the adapter pointer in the case of ptp. As such we can pull the
adapter out of the main path and place it inside the if statement to avoid
the temptation of accessing the adapter pointer in the fast path.
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>
Alexander Duyck [Fri, 1 Feb 2013 08:56:47 +0000 (08:56 +0000)]
igb: Mask off check of frag_off as we only want fragment offset
We were incorrectly checking the entire frag_off field when we only wanted the
fragment offset. As a result we were not pulling in TCP headers when the DNF
flag was set.
To correct that we will now check for frag off using the IP_OFFSET mask.
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>
This patch fixes code and comments as identified in the 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>
This patch adds support for 100base-fx SFP and report proper link speed/duplex
via Ethtool.
v2: fix smatch warnings
CC: Dan Carpenter <dan.carpenter@oracle.com> 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>
Add some empty static inlines instead to make
the code more readable.
Signed-off-by: Joe Perches <joe@perches.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 3 Apr 2013 04:41:37 +0000 (04:41 +0000)]
ixgbe: Add support for WoL on 82599 SFP+ LOM
This patch adds software support for WoL for the 82599 SFP+ LOM device,
(ID 0x8976)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
akepner [Wed, 13 Mar 2013 14:54:58 +0000 (14:54 +0000)]
ixgbe: in shutdown, do netif_running() under rtnl_lock
During shutdown it's possible for __dev_close() (which holds
rtnl_lock) to clear the __LINK_STATE_START bit, and for ixgbe
to then read that bit (without holding rtnl_lock), and then
not fail to free irqs, etc. The result is a crash like this:
David S. Miller [Thu, 18 Apr 2013 19:00:59 +0000 (15:00 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
This series contains updates to ixgbe only.
v2- Dropped the following 2 patches from the series:
ixgbe: Support using build_skb in the case that jumbo frames are disabled
ixgbe: walk pci-e bus to find minimum width
Ben Hutchings found a bug with Alex's patch, so that patch was dropped
permanently. Jacob's "walk PCIe bus" patch is being re-worked for
a more generic solution so that other drivers can benefit.
In the remaining patches...
Alex provides a fix where we were incorrectly checking the entire frag_off
field when we only wanted the fragment offset. Alex also cleans up
the check for PAGE_SIZE, since the default configuration allocates 32K
for all buffers.
Emil provides a change to the calculation of eerd so that it is consistent
between the read and write functions by using | instead of +.
Jacob adds support for displaying PCIe Gen3 link speed, which was
previously missing from the ixgbe driver. He also provides a patch
to clean up ixgbe_get_bus_info_generic to call some conversion
functions, which are used also in another patch provided by Jacob.
Jacob modifies the driver to enable certain devices (which have an
internal switch) to read from the physical slot rather than reading
data from the internal switch.
Don provides a couple of fixes (which are more appropriate for net-next),
one of which resolves an issue where ixgbe was only turning on the laser
when the adapter was up which caused issues for those who wanted to
access the MNG firmware while the port was in a down state. The other
fix is for WoL when currently linked at 1G. Lastly Don bumps the driver
version keep the in-kernel driver up to date with the current functionality.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Host queues (Qdisc + NIC) can hold packets so long that TCP can
eventually retransmit a packet before the first transmit even left
the host.
Its not clear right now if we could avoid this in the first place :
- We could arm RTO timer not at the time we enqueue packets, but
at the time we TX complete them (tcp_wfree())
- Cancel the sending of the new copy of the packet if prior one
is still in queue.
This patch adds instrumentation so that we can at least see how
often this problem happens.
TCPSpuriousRtxHostQueues SNMP counter is incremented every time
we detect the fast clone is not yet freed in tcp_transmit_skb()
Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Sat, 6 Apr 2013 13:24:29 +0000 (15:24 +0200)]
netfilter: add my copyright statements
Add copyright statements to all netfilter files which have had significant
changes done by myself in the past.
Some notes:
- nf_conntrack_ecache.c was incorrectly attributed to Rusty and Netfilter
Core Team when it got split out of nf_conntrack_core.c. The copyrights
even state a date which lies six years before it was written. It was
written in 2005 by Harald and myself.
- net/ipv{4,6}/netfilter.c, net/netfitler/nf_queue.c were missing copyright
statements. I've added the copyright statement from net/netfilter/core.c,
where this code originated
- for nf_conntrack_proto_tcp.c I've also added Jozsef, since I didn't want
it to give the wrong impression
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Don Skidmore [Fri, 1 Mar 2013 07:09:43 +0000 (07:09 +0000)]
ixgbe: bump version number
Bump the version number reflect the corresponding functionality in the
out of tree driver.
Signed-of-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Don Skidmore [Thu, 28 Feb 2013 08:08:44 +0000 (08:08 +0000)]
ixgbe: Fix 1G link WoL
We reset during the shutdown path which will reset AUTOC register. This
would change LMS to 10G. If we were currently linked at 1G we will lose
link, which is a bad thing if we wanted WoL to work. For the fix I needed
to know if WoL is supported so I created a new bool in the ixgbe_hw struct.
If this is set we will not allow the reset to change the current LMS value
in AUTOC.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Don Skidmore [Thu, 21 Feb 2013 03:00:04 +0000 (03:00 +0000)]
ixgbe: fix MNG FW support when adapter not up
We were only turning the laser on when the adapter was up. This
causes issues for those who wanted to access the MNG FW while the
port was in a down state. This patch makes sure the laser is turned
on in probe and remain up even after the port is brought down.
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Tue, 9 Apr 2013 07:20:09 +0000 (07:20 +0000)]
ixgbe: enable devices with internal switch to read pci parent
This patch modifies the driver to enable certain devices, which have an internal
switch, to read data from the physical slot rather than reading data from the
internal switch. The internal switch will always report the same PCI width and
speed, which is not useful compared to knowing the width and speed of the slot
the physical card is plugged into.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Fri, 15 Feb 2013 09:18:15 +0000 (09:18 +0000)]
ixgbe: create conversion functions from link_status to bus/speed
This patch cleans up ixgbe_get_bus_info_generic to call some conversion
functions, which are used also in a follow on patch that needs to convert
between the link_status PCIe config values into ixgbe's internal enum
representations.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Fri, 15 Feb 2013 09:18:10 +0000 (09:18 +0000)]
ixgbe: Enable support for recognizing PCI-e Gen3 link speed
This patch adds support for displaying PCIe Gen3 link speed, which was
previously missing from the driver.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Alexander Duyck [Sat, 9 Feb 2013 01:19:55 +0000 (01:19 +0000)]
ixgbe: Drop check for PAGE_SIZE from ixgbe_xmit_frame_ring
The check for PAGE_SIZE is pointless now that the default configuration is to
allocate 32K for all buffers. Since the Tx descriptor limit is 16K we can
just drop the check and always compare the descriptors to the maximum size
supported.
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>
Emil Tantilov [Tue, 5 Feb 2013 09:43:26 +0000 (09:43 +0000)]
ixgbe: don't do arithmetic operations on bitmasks
Make the calculation of eerd consistent between the read and write functions
by using | instead of + for IXGBE_EEPROM_RW_REG_START
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Alexander Duyck [Fri, 1 Feb 2013 08:56:41 +0000 (08:56 +0000)]
ixgbe: Mask off check of frag_off as we only want fragment offset
We were incorrectly checking the entire frag_off field when we only wanted the
fragment offset. As a result we were not pulling in TCP headers when the DNF
flag was set.
To correct that we will now check for frag off using the IP_OFFSET mask.
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>
David S. Miller [Wed, 17 Apr 2013 18:18:43 +0000 (14:18 -0400)]
Merge branch 'tipc-ipoib'
Patrick McHardy says:
====================
The following patchset adds support for running TIPC over InfiniBand.
The patchset consists of three parts (+ a minor fix for the ethernet media
type):
- Preparation: removal of an the unused str2addr callback and move of the
bcast_addr from struct tipc_media to struct tipc_bearer. This is necessary
because InfiniBand doesn't have a fixed broadcast address like ethernet,
so it needs to be initialized with the device's broadcast address when
the bearer is enabled
- Introduction of a TIPC InfiniBand media type. A new media type is needed
to deal with the different address sizes
- Support for ETH_P_TIPC in IPoIB
Since the last posting I've addressed all feedback I received and rebased
to the current net-next tree.
I consider these patches ready for merging. Since they mainly affect TIPC
code, I'd propose to have them either go through the TIPC tree or through
Dave directly (not sure how TIPC patches are managed).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:18:29 +0000 (06:18 +0000)]
IPoIB: add support for TIPC protocol
Support TIPC in the IPoIB driver. Since IPoIB now keeps track of its own
neighbour entries and doesn't require the packet to have a dst_entry
anymore, the only necessary changes are to:
- not drop multicast TIPC packets because of the unknown ethernet type
- handle unicast TIPC packets similar to IPv4/IPv6 unicast packets
in ipoib_start_xmit().
An alternative would be to remove all ethertype limitations since they're
not necessary anymore, all TIPC needs to know about is ARP and RARP since
it wants to always perform "path find", even if a path is already known.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 17 Apr 2013 06:18:28 +0000 (06:18 +0000)]
tipc: add InfiniBand media type
Add InfiniBand media type based on the ethernet media type.
The only real difference is that in case of InfiniBand, we need the entire
20 bytes of space reserved for media addresses, so the TIPC media type ID is
not explicitly stored in the packet payload.
Patrick McHardy [Wed, 17 Apr 2013 06:18:26 +0000 (06:18 +0000)]
tipc: move bcast_addr from struct tipc_media to struct tipc_bearer
Some network protocols, like InfiniBand, don't have a fixed broadcast
address but one that depends on the configuration. Move the bcast_addr
to struct tipc_bearer and initialize it with the broadcast address of
the network device when the bearer is enabled.
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Remove warning introduced by commit 418fc57 ("usbnet: cdc-ether: apply
usbnet_link_change"):
CHECK .../drivers/net/usb/cdc_ether.c
.../drivers/net/usb/cdc_ether.c:409:46: warning: incorrect type in argument 2 (different base types)
.../drivers/net/usb/cdc_ether.c:409:46: expected bool [unsigned] [usertype] <noident>
.../drivers/net/usb/cdc_ether.c:409:46: got restricted __le16 [usertype] wValue
Cc: Ming Lei <ming.lei@canonical.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Acked-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 11:07:17 +0000 (11:07 +0000)]
net: sctp: sctp_ulpq: remove 'malloced' struct member
The structure sctp_ulpq is embedded into sctp_association and never
separately allocated, also ulpq->malloced is always 0, so that
kfree() is never called. Therefore, remove this code.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 11:07:16 +0000 (11:07 +0000)]
net: sctp: sctp_bind_addr: remove dead code
The sctp_bind_addr structure has a 'malloced' member that is
always set to 0, thus in sctp_bind_addr_free() the kfree()
part can never be called. This part is embedded into
sctp_ep_common anyway and never alloced.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 11:07:15 +0000 (11:07 +0000)]
net: sctp: sctp_transport: remove unused variable
sctp_transport's member 'malloced' is set to 1, never evaluated
and the structure is kfreed anyway. So just remove it.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 11:07:14 +0000 (11:07 +0000)]
net: sctp: outqueue: simplify sctp_outq_uncork function
Just a minor edit to simplify the function. No need for this
error variable here.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 11:07:12 +0000 (11:07 +0000)]
net: sctp: sctp_outq: remove 'malloced' from its struct
sctp_outq is embedded into sctp_association, and thus never
kmalloced in any way. Also, malloced is always 0, thus kfree()
is never called. Therefore, remove that dead piece of code.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 11:07:11 +0000 (11:07 +0000)]
net: sctp: sctp_inq: remove dead code
sctp_inq is never kmalloced, since it's integrated into sctp_ep_common
and only initialized from eps and assocs. Therefore, remove the dead
code from there.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann [Tue, 16 Apr 2013 11:07:10 +0000 (11:07 +0000)]
net: sctp: sctp_ssnmap: remove 'malloced' element from struct
sctp_ssnmap_init() can only be called from sctp_ssnmap_new()
where malloced is always set to 1. Thus, when we call
sctp_ssnmap_free() the test for map->malloced evaluates always
to true.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 17 Apr 2013 17:30:32 +0000 (13:30 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch
Jesse Gross says:
====================
A number of improvements for net-next/3.10.
Highlights include:
* Properly exposing linux/openvswitch.h to userspace after the uapi
changes.
* Simplification of locking. It immediately makes things simpler to
reason about and avoids holding RTNL mutex for longer than
necessary. In the near future it will also enable tunnel
registration and more fine-grained locking.
* Miscellaneous cleanups and simplifications.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 7b7a2bbb690 (atl1: Remove unneeded PM_OPS definitions) removed the
definition of atl1_suspend for the !CONFIG_PM_SLEEP case.
So only call atl1_suspend() when CONFIG_PM_SLEEP is defined and fix the
following build error from randconfig:
drivers/net/ethernet/atheros/atlx/atl1.c: In function 'atl1_shutdown':
drivers/net/ethernet/atheros/atlx/atl1.c:2888:2: error: implicit declaration of function 'atl1_suspend' [-Werror=implicit-function-declaration]
Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / ~andy / linux / log