Commit Graph

602534 Commits

Author SHA1 Message Date
Andrew Rybchenko 34813fe26e sfc: Implement list of VLANs added over interface
Right now it contains dummy VLAN entry with unspecified VID only.
The entry is used for the case when HW VLAN filtering is not used.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:26 -07:00
Andrew Rybchenko b3a3c03c38 sfc: Make EF10 filter management helper functions VLAN-aware
It is a step to support VLAN filtering in HW.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:25 -07:00
Andrew Rybchenko afa4ce1255 sfc: Store unicast and multicast promisc flag with address cache
These flags are built when address cache is updated.
The information will be required when VLAN filtering is added and address
cache is used without re-sync.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:25 -07:00
Andrew Rybchenko dc3273e0c3 sfc: Move filter IDs to per-VLAN data structure
It is a step to support VLAN filtering in HW.
Until then, there is only one struct efx_ef10_filter_vlan per struct
efx_ef10_filter_table, with no VLAN information yet.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:25 -07:00
Andrew Rybchenko 6a37958b8a sfc: Forget filter ID when the filter is marked old
It is required to remove setting of filter IDs to invalid from multicast
and unicast addresses caching functions.
Add initialization to invalid when filter table is created.
Add paranoid checks to track consistency.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:25 -07:00
Edward Cree dd98708cf6 sfc: Assert filter_sem write locked when required
Based on a patch by Andrew Rybchenko <Andrew.Rybchenko@oktetlabs.ru>

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:25 -07:00
Andrew Rybchenko ebfcd0fd90 sfc: Add efx_nic member with fixed netdev features
It allows to change set of fixed features on datapath reset.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:25 -07:00
Andrew Rybchenko b071c3a222 sfc: Move last mc_promisc flag to EF10 filter table state
It is used for EF10 only and logically belongs to EF10 filter table state.
It is OK that it is reset to false on filter table recreation since all
filters are removed on destruction.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:24 -07:00
Andrew Rybchenko 100a9db52f sfc: Define macro with EF10 offload feature
It is useful to simplify features addition.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:26:24 -07:00
David S. Miller 56108c1183 RxRPC rewrite
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Merge tag 'rxrpc-rewrite-20160615' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
rxrpc: Rework endpoint record handling

Here's the next part of the AF_RXRPC rewrite.  In this set I rework
endpoint record handling.  There are two types of endpoint record, local
and peer.  The local endpoint record is used as an anchor for the transport
socket that AF_RXRPC uses (at the moment a UDP socket).  Local endpoints
can be shared between AF_RXRPC sockets under certain restricted
circumstances.

The peer endpoint is a record of the remote end.  It is (or will be) used
to keep track MTU and RTT values and, with these changes, is used to find
the call(s) to abort when a network error occurs.

The following significant changes are made:

 (1) The local endpoint event handling code is split out into its own file.

 (2) The local endpoint list bottom half-excluding spinlock is removed as
     things are arranged such that sk_user_data will not change whilst the
     transport socket callbacks are in progress.

 (3) Local endpoints can now only be shared if they have the same transport
     address (as before) and have a local service ID of 0 (ie. they're not
     listening for incoming calls).  This prevents callbacks from a server
     to one process being picked up by another process.

 (4) Local endpoint destruction is now accomplished by the same work item
     as processes events, meaning that the destructor doesn't need to wait
     for the event processor.

 (5) Peer endpoints are now held in a hash table rather than a flat list.

 (6) Peer endpoints are now destroyed by RCU rather than by work item.

 (7) Peer endpoints are now differentiated by local endpoint and remote
     transport port in addition to remote transport address and transport
     type and family.

     This means that a firewall that excludes access between a particular
     local port and remote port won't cause calls to be aborted that use a
     different port pair.

 (8) Error report handling now no longer assumes that the source is always
     an IPv4 ICMP message from a UDP port and has assumptions that an ICMP
     message comes from an IPv4 socket removed.  At some point IPv6 support
     will be added.

 (9) Peer endpoints rather than local endpoints are now the anchor point
     for distributing network error reports.

(10) Both types of endpoint records are now disposed of as soon as all
     references to them are gone.  There is less hanging around and once
     their usage counts hit zero, records can no longer be resurrected.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 22:22:17 -07:00
David S. Miller 9c9ad41293 Merge branch 'liquidio-next'
Raghu Vatsavayi says:

====================
liquidio: Updates and Bug fixes

Following are updates for liquidio bug fixes and driver
support for new firmware interface. These updates are divided
into smaller logical patches as mentioned by you. These set of
nine patches should be applied in the following order as some of
them depend on earlier patches in the list.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:33 -07:00
Raghu Vatsavayi 6a885b60da liquidio: Introduce new octeon2/3 header
Added support for new instruction header for octeon2/octeon3(ih) and
corresponding changes.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:32 -07:00
Raghu Vatsavayi 0cece6c583 liquidio: Replace ifidx for FW commands
This patch decoupled the firmware side ifidx and host side interface
number. It also has some minor name change for linkinfo sturct field.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:32 -07:00
Raghu Vatsavayi 7275ebfc50 liquidio: New driver FW command structure
This patch is for new driver/firmware control command structure
(octnic_packet_params and octnic_cmd_setup ) and resultant code changes.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:32 -07:00
Raghu Vatsavayi a5b3788881 liquidio: Consider PTP for packet size calculations
This patch is to refactor packet size calculations to support PTP enabled
for 66xx and 68xx cards and also other cards that do not support PTP.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:32 -07:00
Raghu Vatsavayi cabeb13be9 liquidio: RX desc alloc changes
This patch is to add page based buffers for receive side descriptors of
the driver and separate free routines for rx and tx buffers.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:32 -07:00
Raghu Vatsavayi 96ae48b7fa liquidio:RX queue alloc changes
This patch is to allocate rx queue's memory based on numa node and also use
page based buffers for rx traffic improvements.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:31 -07:00
Raghu Vatsavayi fcd2b5e36c liquidio:Scatter gather list per IQ
This patch is to allocate and manage scatter gather lists per
input queue(iq's) and remove queue's interdependence.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:31 -07:00
Raghu Vatsavayi 26236fa9a1 liquidio: Host queue mapping changes
This patch is to allocate the input queues based on Numa node in tx path
and queue mapping changes based on the mapping info provided by firmware.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:31 -07:00
Raghu Vatsavayi ddc173a688 liquidio: Avoid double free during soft command
This patch is to resolve the double free issue by checking proper return
values from soft command.

Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:44:31 -07:00
Tom Herbert 0b797c8589 ila: Fix checksum neutral mapping
The algorithm for checksum neutral mapping is incorrect. This problem
was being hidden since we were previously always performing checksum
offload on the translated addresses and only with IPv6 HW csum.
Enabling an ILA router shows the issue.

Corrected algorithm:

old_loc is the original locator in the packet, new_loc is the value
to overwrite with and is found in the lookup table. old_flag is
the old flag value (zero of CSUM_NEUTRAL_FLAG) and new_flag is
then (old_flag ^ CSUM_NEUTRAL_FLAG) & CSUM_NEUTRAL_FLAG.

Need SUM(new_id + new_flag + diff) == SUM(old_id + old_flag) for
checksum neutral translation.

Solving for diff gives:

diff = (old_id - new_id) + (old_flag - new_flag)

compute_csum_diff8(new_id, old_id) gives old_id - new_id

If old_flag is set
   old_flag - new_flag = old_flag = CSUM_NEUTRAL_FLAG
Else
   old_flag - new_flag = -new_flag = ~CSUM_NEUTRAL_FLAG

Tested:
  - Implemented a user space program that creates random addresses
    and random locators to overwrite. Compares the checksum over
    the address before and after translation (must always be equal)
  - Enabled ILA router and showed proper operation.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:40:00 -07:00
Philip Prindeville 22a59be8b7 net: ipv4: Add ability to have GRE ignore DF bit in IPv4 payloads
In the presence of firewalls which improperly block ICMP Unreachable
    (including Fragmentation Required) messages, Path MTU Discovery is
    prevented from working.

    A workaround is to handle IPv4 payloads opaquely, ignoring the DF bit--as
    is done for other payloads like AppleTalk--and doing transparent
    fragmentation and reassembly.

    Redux includes the enforcement of mutual exclusion between this feature
    and Path MTU Discovery as suggested by Alexander Duyck.

    Cc: Alexander Duyck <alexander.duyck@gmail.com>
    Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
    Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:39:59 -07:00
David Ahern 810e530bfa net: vrf: Switch dst dev to loopback on device delete
Attempting to delete a VRF device with a socket bound to it can stall:

  unregister_netdevice: waiting for red to become free. Usage count = 1

The unregister is waiting for the dst to be released and with it
references to the vrf device. Similar to dst_ifdown switch the dst
dev to loopback on delete for all of the dst's for the vrf device
and release the references to the vrf device.

Fixes: 193125dbd8 ("net: Introduce VRF device driver")
Fixes: 35402e3136 ("net: Add IPv6 support to VRF device")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 21:39:59 -07:00
David S. Miller 042ce72230 Mellanox shared code between RDMA and net-next trees
This is Mellanox mlx5_core shared code for both net-next and RDMA
 trees for 4.8 kernel cycle.
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Merge tag 'shared' of git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma

Mellanox shared code between RDMA and net-next trees

This is Mellanox mlx5_core shared code for both net-next and RDMA
trees for 4.8 kernel cycle.
2016-06-15 21:37:10 -07:00
Arnd Bergmann a78c16e1b9 mdio: mux: avoid 'maybe-uninitialized' warning
The latest changes to the MDIO code introduced a false-positive
warning with gcc-6 (possibly others):

drivers/net/phy/mdio-mux.c: In function 'mdio_mux_init':
drivers/net/phy/mdio-mux.c:188:3: error: 'parent_bus_node' may be used uninitialized in this function [-Werror=maybe-uninitialized]

It's easy to avoid the warning by making sure the parent_bus_node
is initialized in both cases at the start of the function, since
the later 'of_node_put()' call is also valid for a NULL pointer
argument.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: f20e6657a8 ("mdio: mux: Enhanced MDIO mux framework for integrated multiplexers")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:48:52 -07:00
David S. Miller b06f95272e Merge branch '6lowpan-ndisc'
Alexander Aring says:

====================
6lowpan: introduce 6lowpan-nd

David can you please pick-up this patch-serie for your net-next tree?
Thanks in advance.

This patch series introduces the ndisc ops callback structure to add different
handling for IPv6 neighbour discovery cache functionality. It implements at first
the two following use-cases:

 - 6CO handling as userspace option (For all 6LoWPAN layers, BTLE/802.15.4) [0]
 - short address handling for 802.15.4 6LoWPAN only [1]

Since my last patch series, I completely changed the whole ndisc_ops callback
structure to not replace the whole ndisc functionality at recv/send level of
NS/NA/RS/RA which I send in my previous patch-series "6lowpan: introduce basic
6lowpan-nd". I changed it now to add different handling in a very low-level way
of ndisc functionality.

The ndisc_ops don't must be registered to dev->ndisc_ops anymore, if they are not
set, then no additional ipv6 ndisc handling will be done.

This patch series now introduce a complete handling of short address for
802.15.4 6LoWPAN in case of send/recv of NA/NS/RS and RA. In case of RA
(receive only) and PIO we also need a second prefix + short-address based
address.

This callback structure can be used later (I hope) for RFC 6775 [0]. This RFC
defines some new option fields and messages for 6LoWPAN-ND. This patch series
does not implement RFC 6775 (except we decide now to handle 6CO in userspace).

Additional we can use the current ops for parse/fill ndisc options for kernel
handled ndisc messages to add 6CIO, see [2].

I tested RA/NS/NA/RS messages with short address which seems to work, what I
didn't test is the redirect messages since I don't know how to generate them.
The short address for redirect messages are also some special case here, because
the short address by a L3 target address lookuped by neighbour cache need to be
added.

btw:
According to [3] sending redirect messages should be also disabled by default
on 6lowpan interfaces, but can be activated afterwards. This is maybe
something for the ipv6_devconf structure. There is a "accept_redirects" but
no "disable_redirects".

- Alex

[0] https://tools.ietf.org/html/rfc6775
[1] https://tools.ietf.org/html/rfc4944#section-8
[2] https://tools.ietf.org/html/rfc7400

changes since v3:
 - add acked-by and reviewed-by tags
 - fix url references in cover-letter
 - add cover-letter that this patch series is okay to go through net-next tree

changes since RFC:
 - add lowlevel functions __ndisc_opt_addr_space,
   __ndisc_opt_addr_data and __ndisc_fill_addr_option for corresponding
   functions which doesn't requires net_device argument.
 - move ndisc_ops e.g. ndisc_ops_fill_addr_option function call into the
   corresponding device argument function ndisc_fill_addr_option.
   (Introduced a special static inline function for redirect handling).
 - fix error handling in addrconf_prefix_rcv_add_addr.
   (Please see, introduce new API handling that second address registration
    (in case of 802.15.4 6LoWPAN) will still be notified if failed, because
    dev->addr was successful.
 - add ieee802154 sub-directory in short address entry for 6lowpan UAPI.
 - add lowpan_802154_is_valid_src_short_addr, because 802.15.4 6lowpan
   defines the first bit as multicast (don't know how this can be working
   at the end, because some hardware addresses will handle such addresses
   in L2 as unicast. See:
   https://www.iana.org/assignments/_6lowpan-parameters/_6lowpan-parameters.xhtml#_6lowpan-parameters-2

changes since v2:
 - Introduce ndisc_ops to have our own implementation for dealing with NS/NA
   which allows also to support RFC6775 (e.g. ARO).
 - add handling for handling 6CO as userspace option for RA messages in
   case of 6LoWPAN interfaces.
 - change lowpan_is_ll to check on linklayer type only.
 - added some reviewed-by's.
 - move short addr slaac to net/6lowpan instead ipv6 handling.
 - add handling for context based address compression in case for
   short address as link-layer address.
 - change strategy to use short address, a short address will always be used
   when it's available.
 - Handle override flag in NA messages to update short address information or
   not.
====================

Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:44:40 -07:00
Alexander Aring eab560e582 6lowpan: add support for 802.15.4 short addr handling
This patch adds necessary handling for use the short address for
802.15.4 6lowpan. It contains support for IPHC address compression
and new matching algorithmn to decide which link layer address will be
used for 802.15.4 frame.

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:24 -07:00
Alexander Aring cfce94653d 6lowpan: add support for getting short address
In case of sending RA messages we need some way to get the short address
from an 802.15.4 6LoWPAN interface. This patch will add a temporary
debugfs entry for experimental userspace api.

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:24 -07:00
Alexander Aring bbe5f5cefe 6lowpan: introduce 6lowpan-nd
This patch introduce different 6lowpan handling for receive and transmit
NS/NA messages for the ipv6 neighbour discovery. The first use-case is
for supporting 802.15.4 short addresses inside the option fields and
handling for RFC6775 6CO option field as userspace option.

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:23 -07:00
Alexander Aring cc84b3c6b4 ipv6: export several functions
This patch exports some neighbour discovery functions which can be used
by 6lowpan neighbour discovery ops functionality then.

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:23 -07:00
Alexander Aring f997c55c1d ipv6: introduce neighbour discovery ops
This patch introduces neighbour discovery ops callback structure. The
idea is to separate the handling for 6LoWPAN into the 6lowpan module.

These callback offers 6lowpan different handling, such as 802.15.4 short
address handling or RFC6775 (Neighbor Discovery Optimization for IPv6
over 6LoWPANs).

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:23 -07:00
Alexander Aring 4f672235cb addrconf: put prefix address add in an own function
This patch moves the functionality to add a RA PIO prefix generated
address in an own function. This move prepares to add a hook for
adding a second address for a second link-layer address. E.g. short
address for 802.15.4 6LoWPAN.

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:23 -07:00
Alexander Aring 8ec5da4150 ndisc: add __ndisc_fill_addr_option function
This patch adds __ndisc_fill_addr_option as low-level function for
ndisc_fill_addr_option which doesn't depend on net_device parameter.

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:23 -07:00
Alexander Aring 4f36ce84c5 ndisc: add __ndisc_opt_addr_data function
This patch adds __ndisc_opt_addr_data as low-level function for
ndisc_opt_addr_data which doesn't depend on net_device parameter.

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:22 -07:00
Alexander Aring 1e82f961ac ndisc: add __ndisc_opt_addr_space function
This patch adds __ndisc_opt_addr_space as low-level function for
ndisc_opt_addr_space which doesn't depend on net_device parameter.

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:22 -07:00
Alexander Aring 848484c931 6lowpan: remove ipv6 module request
Since we use exported function from ipv6 kernel module we don't need to
request the module anymore to have ipv6 functionality.

Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:22 -07:00
Alexander Aring 2ad3ed5919 6lowpan: add 802.15.4 short addr slaac
This patch adds the autoconfiguration if a valid 802.15.4 short address
is available for 802.15.4 6LoWPAN interfaces.

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:22 -07:00
Alexander Aring 8626a0c83b 6lowpan: add private neighbour data
This patch will introduce a 6lowpan neighbour private data. Like the
interface private data we handle private data for generic 6lowpan and
for link-layer specific 6lowpan.

The current first use case if to save the short address for a 802.15.4
6lowpan neighbour.

Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 20:41:22 -07:00
David S. Miller 6010097806 Merge branch 'cxgb4-sriov-sysfs'
Hariprasad Shenai says:

====================
Add SRIOV configuration via sysfs and few fixes

This series adds support to configure SR-IOV via PCI sysfs interface,
reduces resource allocation in kdump kernel by disabling offload. Also
synchronize unicast and multicast mac address, even in the interface is in
Promiscuous mode.

This patch series has been created against net-next tree and includes
patches on cxgb4 and cxgb4vf driver.

We have included all the maintainers of respective drivers. Kindly review
the change and let us know in case of any review comments.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:46:05 -07:00
Hariprasad Shenai d01f7abc91 cxgb4/cxgb4vf: Synchronize all MAC addresses
Even if interface is in Promiscuous mode/Allmulti mode synchronize
MAC addresses.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:46:05 -07:00
Hariprasad Shenai b6244201f4 cxgb4: Enable SR-IOV configuration via PCI sysfs interface
Implement callback in the driver for the new PCI bus driver
interface that allows the user to enable/disable SR-IOV
virtual functions in a device via the sysfs interface.

Deprecate module parameter used to configure SRIOV

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:46:04 -07:00
Hariprasad Shenai c5a8c0f3aa cxgb4: Force cxgb4 driver as MASTER in kdump kernel
When is_kdump_kernel() is true, Forcing cxgb4 driver as Master so we can
reinitialize the Firmware/Chip. Also reduce memory usage by disabling
offload.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:46:04 -07:00
David S. Miller 88da48f497 Merge branch 'sched_skb_free_defer'
Eric Dumazet says:

====================
net_sched: defer skb freeing while changing qdiscs

qdiscs/classes are changed under RTNL protection and often
while blocking BH and root qdisc spinlock.

When lots of skbs need to be dropped, we free
them under these locks causing TX/RX freezes,
and more generally latency spikes.

I saw spikes of 50+ ms on quite fast hardware...

This patch series adds a simple queue protected by RTNL
where skbs can be placed until RTNL is released.

Note that this might also serve in the future for optional
reinjection of packets when a qdisc is replaced.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:36 -07:00
Eric Dumazet fea024784f net_sched: sch_fq: defer skb freeing
sfq_reset() can use rtnl_kfree_skbs() instead of kfree_skb()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:36 -07:00
Eric Dumazet db4879d93c net_sched: sch_pie: defer skb freeing
pie_change() can use rtnl_qdisc_drop() to benefit from
deferred freeing.

pie_reset() is already using qdisc_reset_queue()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:36 -07:00
Eric Dumazet 2f08a9a162 net_sched: sch_netem: defer skb freeing
rtnl_kfree_skbs() can be used in tfifo_reset()

It would be nice if we could iterate through rb tree instead
of removing one skb at a time, and build a single skb chain.
But this is left for a future patch.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:35 -07:00
Eric Dumazet a5a9f5346f net_sched: sch_htb: defer skb freeing
Both htb_reset() and htb_destroy() can use __qdisc_reset_queue()
instead of __skb_queue_purge() to defer skb freeing of internal
queues.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:35 -07:00
Eric Dumazet e7e424cdc4 net_sched: sch_hhf: defer skb freeing
Both hhf_reset() and hhf_change() can use rtnl_kfree_skbs()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:35 -07:00
Eric Dumazet ece5d4c723 net_sched: fq_codel: defer skb freeing
Both fq_codel_change() and fq_codel_reset() can use rtnl_kfree_skbs()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:35 -07:00
Eric Dumazet e14ffdfdd6 net_sched: sch_fq: defer skb freeing
Both fq_change() and fq_reset() can use rtnl_kfree_skbs()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 14:08:35 -07:00