Commit Graph

444299 Commits

Author SHA1 Message Date
Mitch Williams 263fc48f97 i40e: notify VF of all types of resets
Currently, the PF driver only notifies the VFs for PF reset events.
Instead, notify the VFs for all types of resets, so they can attempt a
graceful reinit.

Change-ID: I03eb7afde25727198ef620f8b4e78bb667a11370
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 02:20:19 -07:00
Mitch Williams d732a18445 i40evf: fix crash when changing ring sizes
i40evf_set_ringparam was broken in several ways. First, it only changed
the size of the first ring, and second, changing the ring size would
often result in a panic because it would change the count before
deallocating resources, causing the driver to either free nonexistent
buffers, or leak leftover buffers.

Fix this by storing the descriptor count in the adapter structure, and
updating the count for each ring each time we allocate them. This
ensures that we always free the right size ring, and always end up with
the requested count when the device is (re)opened.

Change-ID: I298396cd3d452ba8509d9f2d33a93f25868a9a55
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 02:13:01 -07:00
Mitch Williams 337eb08e5a i40evf: set descriptor multiple to 32
Hardware requires descriptors to be allocated in groups of 32.

Change-ID: I752ccc96769d1bd8d3018c004b8aeff464045bf2
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 02:05:35 -07:00
Jesse Brandeburg 61a46a4c07 i40e: clamp jumbo frame size
The driver was allowing the user to set larger size MTU
than the hardware was being configured to support.

The driver was already using VLAN_HLEN when setting the
hardware max receivable frame size, so just add it to the
netdev MTU set entry point as well.

Change-ID: Ie20e2a35d04f8c411253e255bea79ca69aaeaea3
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 01:58:31 -07:00
Jesse Brandeburg d0277054ac i40e/i40evf: remove unused RX_LRO define
Remove unused defines and macros for RX_LRO.

Change-ID: I8ca6715edfa62b56837417a1c4ff68c2345dab6e
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 01:49:18 -07:00
Kamil Krawczyk c5cc0cfd27 i40e: remove check for large buffer
We introduced this check in case this structure changed in the future,
the AQ definition is now mature enough that this check is no longer necessary.

Change-ID: Ic66321d0a08557dc9d8cb84029185352cb534330
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 01:35:07 -07:00
Kamil Krawczyk 22dd9ae8af i40e: Rework register diagnostic
Register range, being subject to register diagnostic, can vary among
different NVMs. We will try to identify the full range and use it for
a register test. This is needed to avoid false test results. If we fail
to define the proper register range we will test only the first register
from that group.

Change-ID: Ieee7173c719733b61d3733177a94dc557eb7b3fd
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 01:27:46 -07:00
Jesse Brandeburg d3a90b70d8 i40e: don't use OR to check a value
A couple of FD checks ended up using bitwise OR to check
a value, which ends up always being evaluated to true.

This should fix the issue.  Thanks to DaveJ for noticing
and reporting the issue!

CC: Dave Jones <davej@redhat.com>
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-06-05 01:20:06 -07:00
WANG Cong ebbe495f19 ipv4: use skb frags api in udp4_hwcsum()
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-05 00:51:47 -07:00
WANG Cong 4cb28970a2 net: use the new API kvfree()
It is available since v3.15-rc5.

Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-05 00:49:51 -07:00
Manuel Schölling 9638f6713f dns_resolver: Do not accept domain names longer than 255 chars
According to RFC1035 "[...] the total length of a domain name (i.e.,
label octets and label length octets) is restricted to 255 octets or
less."

Signed-off-by: Manuel Schölling <manuel.schoelling@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-05 00:05:53 -07:00
David S. Miller 555878b9ee Merge branch 'isdn-capi'
Tilman Schmidt says:

====================
ISDN patches for net-next (v2)

Here's v2 of the series of patches for the ISDN CAPI subsystem
prepared by Paul Bolle and reviewed by yours truly. It reflects
GregKH's review, resulting in a substantial simplification.
Please merge via net-next.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 23:13:49 -07:00
Paul Bolle d1cadce15a isdn/capi: fix (middleware) device nodes
Since v2.4 the capi driver used the following device nodes if
"middleware" support was enabled:
    /dev/capi20
    /dev/capi/0
    /dev/capi/1
    [...]

/dev/capi20 is a character device node. /dev/capi/0 (and up) are tty
device nodes (with a different major).

This device node (naming) scheme is not documented anywhere, as far as I
know. It was originally provided by the capifs pseudo filesystem (before
udev became available). It is required for example by the pppd
capiplugin. It was supported until a few years ago. But a number of
developments broke it:
- v2.6.6 (May 2004) renamed /dev/capi20 to /dev/capi and removed the
  "/" from the name of capi's tty driver. The explanation of the patch
  that did this included two examples of udev rules "to restore the old
  namespace";
- either udev 154 (May 2010) or udev 179 (January 2012) stopped
  allowing to rename device nodes, and thus the ability to have
  /dev/capi20 appear instead of /dev/capi and /dev/capi/0 (and up)
  instead of /dev/capi0 (and up);
- v3.0 (July 2011) also removed capifs. That disabled another method to
  create the /dev/capi/0 (and up) device nodes.

So now users need to manually tweak their setup (eg, create /dev/capi/
and fill that with symlinks) to get things working. This is all rather
hacky and only discoverable by searching the web. Fix all this by
renaming /dev/capi back to /dev/capi20, and by setting the name of the
"capi_nc" tty driver to "capi!" so the tty device nodes appear as
/dev/capi/0 (and up).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 23:13:41 -07:00
Paul Bolle a79f5d2612 isdn/capi: Make verbose reporting depend on capidrv
The Kconfig symbol ISDN_DRV_AVMB1_VERBOSE_REASON is only used for
capi_info2str(). That function is only used in capidrv.c. So setting it
without setting ISDN_CAPI_CAPIDRV is pointless. Make it depend on
ISDN_CAPI_CAPIDRV, rename it to ISDN_CAPI_CAPIDRV_VERBOSE and put its
entry after ISDN_CAPI_CAPIDRV's entry.

Since this symbol seems to be primarily used for debugging, keep it off
by default. By now the last users of capidrv hopefully know all they
need to know about the reasons for disconnecting.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 23:13:41 -07:00
Paul Bolle ca05e3a755 isdn/capi: move capi_info2str to capidrv.c
capi_info2str() is apparently meant to be of general utility. It is
actually only used in capidrv.c. So move it from capiutil.c to
capidrv.c and (obviously) stop exporting it.

And, since we're touching this, merge the two versions of this
function.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 23:13:41 -07:00
David S. Miller 00d115fc75 Merge branch 'inet_csums'
Tom Herbert says:

====================
net: Support checksum in UDP

This patch series adds support for using checksums in UDP tunnels. With
this it is possible that two or more checksums may be set within the
same packet and we would like to do that efficiently.

This series also creates some new helper functions to be used by various
tunnel protocol implementations.

v2: Fixed indentation in tcp_v6_send_check arguments.
v3: Move udp_set_csum and udp6_set_csum to be not inlined
    Also have this functions call with a nocheck boolean argument
    instead of passing a sock structure.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:52:31 -07:00
Tom Herbert 359a0ea987 vxlan: Add support for UDP checksums (v4 sending, v6 zero csums)
Added VXLAN link configuration for sending UDP checksums, and allowing
TX and RX of UDP6 checksums.

Also, call common iptunnel_handle_offloads and added GSO support for
checksums.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:46:39 -07:00
Tom Herbert 4749c09c37 gre: Call gso_make_checksum
Call gso_make_checksum. This should have the benefit of using a
checksum that may have been previously computed for the packet.

This also adds NETIF_F_GSO_GRE_CSUM to differentiate devices that
offload GRE GSO with and without the GRE checksum offloaed.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:46:38 -07:00
Tom Herbert 0f4f4ffa7b net: Add GSO support for UDP tunnels with checksum
Added a new netif feature for GSO_UDP_TUNNEL_CSUM. This indicates
that a device is capable of computing the UDP checksum in the
encapsulating header of a UDP tunnel.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:46:38 -07:00
Tom Herbert e9c3a24b3a tcp: Call gso_make_checksum
Call common gso_make_checksum when calculating checksum for a
TCP GSO segment.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:46:38 -07:00
Tom Herbert 7e2b10c1e5 net: Support for multiple checksums with gso
When creating a GSO packet segment we may need to set more than
one checksum in the packet (for instance a TCP checksum and
UDP checksum for VXLAN encapsulation). To be efficient, we want
to do checksum calculation for any part of the packet at most once.

This patch adds csum_start offset to skb_gso_cb. This tracks the
starting offset for skb->csum which is initially set in skb_segment.
When a protocol needs to compute a transport checksum it calls
gso_make_checksum which computes the checksum value from the start
of transport header to csum_start and then adds in skb->csum to get
the full checksum. skb->csum and csum_start are then updated to reflect
the checksum of the resultant packet starting from the transport header.

This patch also adds a flag to skbuff, encap_hdr_csum, which is set
in *gso_segment fucntions to indicate that a tunnel protocol needs
checksum calculation

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:46:38 -07:00
Tom Herbert 77157e1973 l2tp: call udp{6}_set_csum
Call common functions to set checksum for UDP tunnel.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:46:38 -07:00
Tom Herbert af5fcba7f3 udp: Generic functions to set checksum
Added udp_set_csum and udp6_set_csum functions to set UDP checksums
in packets. These are for simple UDP packets such as those that might
be created in UDP tunnels.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 22:46:38 -07:00
Sven Wegener 3bfdc59a6c ipv6: Fix regression caused by efe4208 in udp_v6_mcast_next()
Commit efe4208 ("ipv6: make lookups simpler and faster") introduced a
regression in udp_v6_mcast_next(), resulting in multicast packets not
reaching the destination sockets under certain conditions.

The packet's IPv6 addresses are wrongly compared to the IPv6 addresses
from the function's socket argument, which indicates the starting point
for looping, instead of the loop variable. If the addresses from the
first socket do not match the packet's addresses, no socket in the list
will match.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 15:42:01 -07:00
David S. Miller 6579867c8b Merge branch 'bonding-macvlan'
Vlad Yasevich says:

====================
Fix support for macvlan devices on top bonding

Currently, macvlan devices do not work well over bond interfaces.
Everything works well, untill a failover is triggered in the bond
device and then macvlan becomes unreachble untill arp entries
are flushed.   This series adds needed functionality to
handle correct notifications and update switches with mac addresses
assigned to macvlans.

The first patch simply addes IFF_UNICAST_FLT flag to bonds since they
already correctly manage the unicast filter list of the slaves, so
we might as well prevent the bond from needlessly going into promiscuous
mode.

The second patch adds notifier handler to macvlan to trigger correct
ARP notifications.

The third patch adds handling for TLB and RLB modes that use special
ETH_P_LOOPBACK type packets to teach switch about mac addresses.
It also allow ARPs for the macvlan mac addresses to be handled by
RLB mode.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-06-04 15:14:17 -07:00