Salil [Thu, 3 Dec 2015 12:17:53 +0000 (12:17 +0000)]
net:hns: Add support of Hip06 SoC to the Hislicon Network Subsystem
This patchset adds support of Hisilicon Hip06 SoC to the existing HNS
ethernet driver.
The changes in the driver are mainly due to changes in the DMA
descriptor provided by the Hip06 ethernet hardware. These changes
need to co-exist with already present Hip05 DMA descriptor and its
operating functions. The decision to choose the correct type of DMA
descriptor is taken dynamically depending upon the version of the
hardware (i.e. V1/hip05 or V2/hip06, see already existing
hisilicon-hns-nic.txt binding file for detailed description). other
changes includes in SBM, DSAF and PPE modules as well. Changes
affecting the driver related to the newly added ethernet hardware
features in Hip06 would be added as separate patch over this and
subsequent patches.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: yankejian <yankejian@huawei.com>
Signed-off-by: huangdaode <huangdaode@hisilicon.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Signed-off-by: lisheng <lisheng011@huawei.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
yzhu1 [Thu, 3 Dec 2015 10:00:55 +0000 (18:00 +0800)]
net: bonding: remove redudant brackets
It is not necessary to use two brackets. As such, the redudant brackets
are removed.
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 4 Dec 2015 02:03:21 +0000 (21:03 -0500)]
Merge git://git./linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/renesas/ravb_main.c
kernel/bpf/syscall.c
net/ipv4/ipmr.c
All three conflicts were cases of overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 4 Dec 2015 00:02:46 +0000 (16:02 -0800)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"A lot of Thanksgiving turkey leftovers accumulated, here goes:
1) Fix bluetooth l2cap_chan object leak, from Johan Hedberg.
2) IDs for some new iwlwifi chips, from Oren Givon.
3) Fix rtlwifi lockups on boot, from Larry Finger.
4) Fix memory leak in fm10k, from Stephen Hemminger.
5) We have a route leak in the ipv6 tunnel infrastructure, fix from
Paolo Abeni.
6) Fix buffer pointer handling in arm64 bpf JIT,f rom Zi Shen Lim.
7) Wrong lockdep annotations in tcp md5 support, fix from Eric
Dumazet.
8) Work around some middle boxes which prevent proper handling of TCP
Fast Open, from Yuchung Cheng.
9) TCP repair can do huge kmalloc() requests, build paged SKBs
instead. From Eric Dumazet.
10) Fix msg_controllen overflow in scm_detach_fds, from Daniel
Borkmann.
11) Fix device leaks on ipmr table destruction in ipv4 and ipv6, from
Nikolay Aleksandrov.
12) Fix use after free in epoll with AF_UNIX sockets, from Rainer
Weikusat.
13) Fix double free in VRF code, from Nikolay Aleksandrov.
14) Fix skb leaks on socket receive queue in tipc, from Ying Xue.
15) Fix ifup/ifdown crach in xgene driver, from Iyappan Subramanian.
16) Fix clearing of persistent array maps in bpf, from Daniel
Borkmann.
17) In TCP, for the cross-SYN case, we don't initialize tp->copied_seq
early enough. From Eric Dumazet.
18) Fix out of bounds accesses in bpf array implementation when
updating elements, from Daniel Borkmann.
19) Fill gaps in RCU protection of np->opt in ipv6 stack, from Eric
Dumazet.
20) When dumping proxy neigh entries, we have to accomodate NULL
device pointers properly, from Konstantin Khlebnikov.
21) SCTP doesn't release all ipv6 socket resources properly, fix from
Eric Dumazet.
22) Prevent underflows of sch->q.qlen for multiqueue packet
schedulers, also from Eric Dumazet.
23) Fix MAC and unicast list handling in bnxt_en driver, from Jeffrey
Huang and Michael Chan.
24) Don't actively scan radar channels, from Antonio Quartulli"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (110 commits)
net: phy: reset only targeted phy
bnxt_en: Setup uc_list mac filters after resetting the chip.
bnxt_en: enforce proper storing of MAC address
bnxt_en: Fixed incorrect implementation of ndo_set_mac_address
net: lpc_eth: remove irq > NR_IRQS check from probe()
net_sched: fix qdisc_tree_decrease_qlen() races
openvswitch: fix hangup on vxlan/gre/geneve device deletion
ipv4: igmp: Allow removing groups from a removed interface
ipv6: sctp: implement sctp_v6_destroy_sock()
arm64: bpf: add 'store immediate' instruction
ipv6: kill sk_dst_lock
ipv6: sctp: add rcu protection around np->opt
net/neighbour: fix crash at dumping device-agnostic proxy entries
sctp: use GFP_USER for user-controlled kmalloc
sctp: convert sack_needed and sack_generation to bits
ipv6: add complete rcu protection around np->opt
bpf: fix allocation warnings in bpf maps and integer overflow
mvebu: dts: enable IP checksum with jumbo frames for Armada 38x on Port0
net: mvneta: enable setting custom TX IP checksum limit
net: mvneta: fix error path for building skb
...
Linus Torvalds [Thu, 3 Dec 2015 23:45:16 +0000 (15:45 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A collection of fixes from this series. The most important here is a
regression fix for an issue that some folks would hit in blk-merge.c,
and the NVMe queue depth limit for the screwed up Apple "nvme"
controller.
In more detail, this pull request contains:
- a set of fixes for null_blk, including a fix for a few corner cases
where we could hang the device. From Arianna and Paolo.
- lightnvm:
- A build improvement from Keith.
- Update the qemu pci id detection from Matias.
- Error handling fixes for leaks and other little fixes from
Sudip and Wenwei.
- fix from Eric where BLKRRPART would not return EBUSY for whole
device mounts, only when partitions were mounted.
- fix from Jan Kara, where EOF O_DIRECT reads would return
negatively.
- remove check for rq_mergeable() when checking limits for cloned
requests. The check doesn't make any sense. It's assuming that
since NOMERGE is set on the request that we don't have to
recalculate limits since the request didn't change, but that's not
true if the request has been redirected. From Hannes.
- correctly get the bio front segment value set for single segment
bio's, fixing a BUG() in blk-merge. From Ming"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme: temporary fix for Apple controller reset
null_blk: change type of completion_nsec to unsigned long
null_blk: guarantee device restart in all irq modes
null_blk: set a separate timer for each command
blk-merge: fix computing bio->bi_seg_front_size in case of single segment
direct-io: Fix negative return from dio read beyond eof
block: Always check queue limits for cloned requests
lightnvm: missing nvm_lock acquire
lightnvm: unconverted ppa returned in get_bb_tbl
lightnvm: refactor and change vendor id for qemu
lightnvm: do device max sectors boundary check first
lightnvm: fix ioctl memory leaks
lightnvm: free memory when gennvm register fails
lightnvm: Simplify config when disabled
Return EBUSY from BLKRRPART for mounted whole-dev fs
Linus Torvalds [Thu, 3 Dec 2015 23:23:17 +0000 (15:23 -0800)]
Merge tag 'trace-v4.4-rc3' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"During the merge window I added a new file that is used to filter
trace events on pids. It filters all events where only tasks with
their pid in that file exists. It also handles the sched_switch and
sched_wakeup trace events where the current task does not have its pid
in the file, but the task either being switched to or awaken does.
Unfortunately, I forgot about sched_wakeup_new and sched_waking. Both
of these tracepoints use the same class as the sched_wakeup
tracepoint, and they too should be included in what gets filtered by
the set_event_pid file"
* tag 'trace-v4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Add sched_wakeup_new and sched_waking tracepoints for pid filter
David S. Miller [Thu, 3 Dec 2015 20:56:22 +0000 (15:56 -0500)]
Merge tag 'mac80211-for-davem-2015-12-02' of git://git./linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
A small set of fixes for 4.4:
* fix scanning in mac80211 to not actively scan radar
channels (from Antonio)
* fix uninitialized variable in remain-on-channel that
could lead to treating frame TX as remain-on-channel
and not sending the frame at all
* remove NL80211_FEATURE_FULL_AP_CLIENT_STATE again, it
was broken and needs more work, we'll enable it later
* fix call_rcu() induced use-after-reset/free in mesh
(that was suddenly causing issues in certain tests)
* always request block-ack window size 64 as we found
some APs will otherwise crash (really ...)
* fix P2P-Device teardown sequence to avoid restarting
with uninitialized data
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 09:12:03 +0000 (10:12 +0100)]
mlxsw: core: Change BUG to WARN in hwmon code
Better to just warn the user that something really odd is going on and
continue to run.
Suggested-by: Or Gerlitz <gerlitz.or@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jérôme Pouiller [Thu, 3 Dec 2015 09:02:35 +0000 (10:02 +0100)]
net: phy: reset only targeted phy
It is possible to address another chip on same MDIO bus. The case is
correctly handled for media advertising. It is taken into account
only if mii_data->phy_id == phydev->addr. However, this condition
was missing for reset case.
Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephen Boyd [Thu, 3 Dec 2015 07:55:15 +0000 (23:55 -0800)]
stmmac: ipq806x: Return error values instead of pointers
Typically we return error pointers when we want to use those
pointers in the non-error case, but this function is just
returning error pointers or NULL for success. Change the style to
plain int to follow normal kernel coding styles.
Cc: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Wed, 2 Dec 2015 20:19:37 +0000 (15:19 -0500)]
tipc: fix node reference count bug
Commit
5405ff6e15f40f2f ("tipc: convert node lock to rwlock")
introduced a bug to the node reference counter handling. When a
message is successfully sent in the function tipc_node_xmit(),
we return directly after releasing the node lock, instead of
continuing and decrementing the node reference counter as we
should do.
This commit fixes this bug.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 20:18:10 +0000 (15:18 -0500)]
Merge branch 'mvneta-ethtool-autoneg'
Stas Sergeev says:
====================
mvneta: implement ethtool autonegotiation control
These 2 patches add an ability to control the
autonegotiation via ethtool. For example:
ethtool -s eth0 autoneg off
ethtool -s eth0 autoneg on
This is needed if you want to connect the mvneta's MII
to different switches or PHYs: the ones the do support
the in-band status, and the ones that do not.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Stas Sergeev [Wed, 2 Dec 2015 17:35:11 +0000 (20:35 +0300)]
mvneta: implement ethtool autonegotiation control
This patch allows to do
ethtool -s eth0 autoneg off
ethtool -s eth0 autoneg on
to disable or enable autonegotiation at run-time.
Without that functionality, the only way to control the autonegotiation
is to modify the device tree.
This is needed if you plan to use the same kernel with
different ethernet switches, the ones that support the in-band
status and the ones that not.
CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: netdev@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stas Sergeev [Wed, 2 Dec 2015 17:33:56 +0000 (20:33 +0300)]
mvneta: consolidate autoneg enabling
This moves autoneg-related bit manipulations to the single place.
CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: netdev@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thierry Reding [Wed, 2 Dec 2015 16:30:29 +0000 (17:30 +0100)]
net: mv643xx: Use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thierry Reding [Wed, 2 Dec 2015 16:30:28 +0000 (17:30 +0100)]
net: mpc52xx: Use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thierry Reding [Wed, 2 Dec 2015 16:30:27 +0000 (17:30 +0100)]
net: bcm63xx: Use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thierry Reding [Wed, 2 Dec 2015 16:30:26 +0000 (17:30 +0100)]
net: bfin_mac: Use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guillaume Nault [Wed, 2 Dec 2015 15:27:39 +0000 (16:27 +0100)]
pppox: use standard module auto-loading feature
* Register PF_PPPOX with pppox module rather than with pppoe,
so that pppoe doesn't get loaded for any PF_PPPOX socket.
* Register PX_PROTO_* with standard MODULE_ALIAS_NET_PF_PROTO()
instead of using pppox's own naming scheme.
* While there, add auto-loading feature for pptp.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 20:07:14 +0000 (15:07 -0500)]
Merge branch 'bnxt_en-fixes'
Michael Chan says:
====================
bnxt_en: set mac address and uc_list bug fixes.
Fix ndo_set_mac_address() for PF and VF.
Re-apply uc_list after chip reset.
v2: Fix compile error if CONFIG_BNXT_SRIOV is not set.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Chan [Wed, 2 Dec 2015 06:54:08 +0000 (01:54 -0500)]
bnxt_en: Setup uc_list mac filters after resetting the chip.
Call bnxt_cfg_rx_mode() in bnxt_init_chip() to setup uc_list and
mc_list mac address filters. Before the patch, uc_list is not
setup again after chip reset (such as ethtool ring size change)
and macvlans don't work any more after that.
Modify bnxt_cfg_rx_mode() to return error codes appropriately so
that the init chip sequence can detect any failures.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeffrey Huang [Wed, 2 Dec 2015 06:54:07 +0000 (01:54 -0500)]
bnxt_en: enforce proper storing of MAC address
For PF, the bp->pf.mac_addr always holds the permanent MAC
addr assigned by the HW. For VF, the bp->vf.mac_addr always
holds the administrator assigned VF MAC addr. The random
generated VF MAC addr should never get stored to bp->vf.mac_addr.
This way, when the VF wants to change the MAC address, we can tell
if the adminstrator has already set it and disallow the VF from
changing it.
v2: Fix compile error if CONFIG_BNXT_SRIOV is not set.
Signed-off-by: Jeffrey Huang <huangjw@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeffrey Huang [Wed, 2 Dec 2015 06:54:06 +0000 (01:54 -0500)]
bnxt_en: Fixed incorrect implementation of ndo_set_mac_address
The existing ndo_set_mac_address only copies the new MAC addr
and didn't set the new MAC addr to the HW. The correct way is
to delete the existing default MAC filter from HW and add
the new one. Because of RFS filters are also dependent on the
default mac filter l2 context, the driver must go thru
close_nic() to delete the default MAC and RFS filters, then
open_nic() to set the default MAC address to HW.
Signed-off-by: Jeffrey Huang <huangjw@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 20:05:56 +0000 (15:05 -0500)]
Merge branch 'vsock-virtio'
Stefan Hajnoczi says:
====================
Add virtio transport for AF_VSOCK
v2:
* Rebased onto Linux v4.4-rc2
* vhost: Refuse to assign reserved CIDs
* vhost: Refuse guest CID if already in use
* vhost: Only accept correctly addressed packets (no spoofing!)
* vhost: Support flexible rx/tx descriptor layout
* vhost: Add missing total_tx_buf decrement
* virtio_transport: Fix total_tx_buf accounting
* virtio_transport: Add virtio_transport global mutex to prevent races
* common: Notify other side of SOCK_STREAM disconnect (fixes shutdown
semantics)
* common: Avoid recursive mutex_lock(tx_lock) for write_space (fixes deadlock)
* common: Define VIRTIO_VSOCK_TYPE_STREAM/DGRAM hardware interface constants
* common: Define VIRTIO_VSOCK_SHUTDOWN_RCV/SEND hardware interface constants
* common: Fix peer_buf_alloc inheritance on child socket
This patch series adds a virtio transport for AF_VSOCK (net/vmw_vsock/).
AF_VSOCK is designed for communication between virtual machines and
hypervisors. It is currently only implemented for VMware's VMCI transport.
This series implements the proposed virtio-vsock device specification from
here:
http://comments.gmane.org/gmane.comp.emulators.virtio.devel/855
Most of the work was done by Asias He and Gerd Hoffmann a while back. I have
picked up the series again.
The QEMU userspace changes are here:
https://github.com/stefanha/qemu/commits/vsock
Why virtio-vsock?
-----------------
Guest<->host communication is currently done over the virtio-serial device.
This makes it hard to port sockets API-based applications and is limited to
static ports.
virtio-vsock uses the sockets API so that applications can rely on familiar
SOCK_STREAM and SOCK_DGRAM semantics. Applications on the host can easily
connect to guest agents because the sockets API allows multiple connections to
a listen socket (unlike virtio-serial). This simplifies the guest<->host
communication and eliminates the need for extra processes on the host to
arbitrate virtio-serial ports.
Overview
--------
This series adds 3 pieces:
1. virtio_transport_common.ko - core virtio vsock code that uses vsock.ko
2. virtio_transport.ko - guest driver
3. drivers/vhost/vsock.ko - host driver
Howto
-----
The following kernel options are needed:
CONFIG_VSOCKETS=y
CONFIG_VIRTIO_VSOCKETS=y
CONFIG_VIRTIO_VSOCKETS_COMMON=y
CONFIG_VHOST_VSOCK=m
Launch QEMU as follows:
# qemu ... -device vhost-vsock-pci,id=vhost-vsock-pci0,guest-cid=3
Guest and host can communicate via AF_VSOCK sockets. The host's CID (address)
is 2 and the guest is automatically assigned a CID (use VMADDR_CID_ANY (-1) to
bind to it).
Status
------
There are a few design changes I'd like to make to the virtio-vsock device:
1. The 3-way handshake isn't necessary over a reliable transport (virtqueue).
Spoofing packets is also impossible so the security aspects of the 3-way
handshake (including syn cookie) add nothing. The next version will have a
single operation to establish a connection.
2. Credit-based flow control doesn't work for SOCK_DGRAM since multiple clients
can transmit to the same listen socket. There is no way for the clients to
coordinate buffer space with each other fairly. The next version will drop
credit-based flow control for SOCK_DGRAM and only rely on best-effort
delivery. SOCK_STREAM still has guaranteed delivery.
3. In the next version only the host will be able to establish connections
(i.e. to connect to a guest agent). This is for security reasons since
there is currently no ability to provide host services only to certain
guests. This also matches how AF_VSOCK works on modern VMware hypervisors.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Asias He [Wed, 2 Dec 2015 06:44:03 +0000 (14:44 +0800)]
VSOCK: Add Makefile and Kconfig
Enable virtio-vsock and vhost-vsock.
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Asias He [Wed, 2 Dec 2015 06:44:02 +0000 (14:44 +0800)]
VSOCK: Introduce vhost-vsock.ko
VM sockets vhost transport implementation. This module runs in host
kernel.
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Asias He [Wed, 2 Dec 2015 06:44:01 +0000 (14:44 +0800)]
VSOCK: Introduce virtio-vsock.ko
VM sockets virtio transport implementation. This module runs in guest
kernel.
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Asias He [Wed, 2 Dec 2015 06:44:00 +0000 (14:44 +0800)]
VSOCK: Introduce virtio-vsock-common.ko
This module contains the common code and header files for the following
virtio-vsock and virtio-vhost kernel modules.
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Asias He [Wed, 2 Dec 2015 06:43:59 +0000 (14:43 +0800)]
VSOCK: Introduce vsock_find_unbound_socket and vsock_bind_dgram_generic
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Wed, 2 Dec 2015 06:18:11 +0000 (22:18 -0800)]
mpls: support for dead routes
Adds support for RTNH_F_DEAD and RTNH_F_LINKDOWN flags on mpls
routes due to link events. Also adds code to ignore dead
routes during route selection.
Unlike ip routes, mpls routes are not deleted when the route goes
dead. This is current mpls behaviour and this patch does not change
that. With this patch however, routes will be marked dead.
dead routes are not notified to userspace (this is consistent with ipv4
routes).
dead routes:
-----------
$ip -f mpls route show
100
nexthop as to 200 via inet 10.1.1.2 dev swp1
nexthop as to 700 via inet 10.1.1.6 dev swp2
$ip link set dev swp1 down
$ip link show dev swp1
4: swp1: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN mode
DEFAULT group default qlen 1000
link/ether 00:02:00:00:00:01 brd ff:ff:ff:ff:ff:ff
$ip -f mpls route show
100
nexthop as to 200 via inet 10.1.1.2 dev swp1 dead linkdown
nexthop as to 700 via inet 10.1.1.6 dev swp2
linkdown routes:
----------------
$ip -f mpls route show
100
nexthop as to 200 via inet 10.1.1.2 dev swp1
nexthop as to 700 via inet 10.1.1.6 dev swp2
$ip link show dev swp1
4: swp1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP mode DEFAULT group default qlen 1000
link/ether 00:02:00:00:00:01 brd ff:ff:ff:ff:ff:ff
/* carrier goes down */
$ip link show dev swp1
4: swp1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast
state DOWN mode DEFAULT group default qlen 1000
link/ether 00:02:00:00:00:01 brd ff:ff:ff:ff:ff:ff
$ip -f mpls route show
100
nexthop as to 200 via inet 10.1.1.2 dev swp1 linkdown
nexthop as to 700 via inet 10.1.1.6 dev swp2
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Robert Shearman <rshearma@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Zapolskiy [Wed, 2 Dec 2015 06:12:13 +0000 (08:12 +0200)]
net: lpc_eth: remove irq > NR_IRQS check from probe()
If the driver is used on an ARM platform with SPARSE_IRQ defined,
semantics of NR_IRQS is different (minimal value of virtual irqs) and
by default it is set to 16, see arch/arm/include/asm/irq.h.
This value may be less than the actual number of virtual irqs, which
may break the driver initialization. The check removal allows to use
the driver on such a platform, and, if irq controller driver works
correctly, the check is not needed on legacy platforms.
Fixes a runtime problem:
lpc-eth
31060000.ethernet: error getting resources.
lpc_eth: lpc-eth: not found (-6).
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 20:01:09 +0000 (15:01 -0500)]
Merge branch 'rsvb-compat-strings'
Simon Horman says:
====================
ravb: More compatibility strings
this short series adds generic gen2 and gen3, and soc-specific
compatibility strings for the missing gen2 SoCs.
Key Changes in v2:
* Include "rcar-" in generic bindings
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Simon Horman [Wed, 2 Dec 2015 05:58:33 +0000 (14:58 +0900)]
ravb: add device tree support for r8a779[123]
Simply document new compatibility strings.
As a previous patch adds a generic R-Car Gen2 compatibility string
there appears to be no need for a driver updates.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simon Horman [Wed, 2 Dec 2015 05:58:32 +0000 (14:58 +0900)]
ravb: add fallback compatibility strings
Add fallback compatibility strings for R-Car Gen 2 & 3 SoC Families.
This is in keeping with the fallback scheme being adopted wherever appropriate
for drivers for Renesas SoCs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 2 Dec 2015 04:08:51 +0000 (20:08 -0800)]
net_sched: fix qdisc_tree_decrease_qlen() races
qdisc_tree_decrease_qlen() suffers from two problems on multiqueue
devices.
One problem is that it updates sch->q.qlen and sch->qstats.drops
on the mq/mqprio root qdisc, while it should not : Daniele
reported underflows errors :
[ 681.774821] PAX: sch->q.qlen: 0 n: 1
[ 681.774825] PAX: size overflow detected in function qdisc_tree_decrease_qlen net/sched/sch_api.c:769 cicus.693_49 min, count: 72, decl: qlen; num: 0; context: sk_buff_head;
[ 681.774954] CPU: 2 PID: 19 Comm: ksoftirqd/2 Tainted: G O 4.2.6.
201511282239-1-grsec #1
[ 681.774955] Hardware name: ASUSTeK COMPUTER INC. X302LJ/X302LJ, BIOS X302LJ.202 03/05/2015
[ 681.774956]
ffffffffa9a04863 0000000000000000 0000000000000000 ffffffffa990ff7c
[ 681.774959]
ffffc90000d3bc38 ffffffffa95d2810 0000000000000007 ffffffffa991002b
[ 681.774960]
ffffc90000d3bc68 ffffffffa91a44f4 0000000000000001 0000000000000001
[ 681.774962] Call Trace:
[ 681.774967] [<
ffffffffa95d2810>] dump_stack+0x4c/0x7f
[ 681.774970] [<
ffffffffa91a44f4>] report_size_overflow+0x34/0x50
[ 681.774972] [<
ffffffffa94d17e2>] qdisc_tree_decrease_qlen+0x152/0x160
[ 681.774976] [<
ffffffffc02694b1>] fq_codel_dequeue+0x7b1/0x820 [sch_fq_codel]
[ 681.774978] [<
ffffffffc02680a0>] ? qdisc_peek_dequeued+0xa0/0xa0 [sch_fq_codel]
[ 681.774980] [<
ffffffffa94cd92d>] __qdisc_run+0x4d/0x1d0
[ 681.774983] [<
ffffffffa949b2b2>] net_tx_action+0xc2/0x160
[ 681.774985] [<
ffffffffa90664c1>] __do_softirq+0xf1/0x200
[ 681.774987] [<
ffffffffa90665ee>] run_ksoftirqd+0x1e/0x30
[ 681.774989] [<
ffffffffa90896b0>] smpboot_thread_fn+0x150/0x260
[ 681.774991] [<
ffffffffa9089560>] ? sort_range+0x40/0x40
[ 681.774992] [<
ffffffffa9085fe4>] kthread+0xe4/0x100
[ 681.774994] [<
ffffffffa9085f00>] ? kthread_worker_fn+0x170/0x170
[ 681.774995] [<
ffffffffa95d8d1e>] ret_from_fork+0x3e/0x70
mq/mqprio have their own ways to report qlen/drops by folding stats on
all their queues, with appropriate locking.
A second problem is that qdisc_tree_decrease_qlen() calls qdisc_lookup()
without proper locking : concurrent qdisc updates could corrupt the list
that qdisc_match_from_root() parses to find a qdisc given its handle.
Fix first problem adding a TCQ_F_NOPARENT qdisc flag that
qdisc_tree_decrease_qlen() can use to abort its tree traversal,
as soon as it meets a mq/mqprio qdisc children.
Second problem can be fixed by RCU protection.
Qdisc are already freed after RCU grace period, so qdisc_list_add() and
qdisc_list_del() simply have to use appropriate rcu list variants.
A future patch will add a per struct netdev_queue list anchor, so that
qdisc_tree_decrease_qlen() can have more efficient lookups.
Reported-by: Daniele Fucini <dfucini@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Cong Wang <cwang@twopensource.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Phil Sutter [Tue, 1 Dec 2015 21:45:15 +0000 (22:45 +0100)]
net: ipv6: restrict hop_limit sysctl setting to range [1; 255]
Setting a value bigger than 255 resulted in using only the lower eight
bits of that value as it is assigned to the u8 header field. To avoid
this unexpected result, reject such values.
Setting a value of zero is technically possible, but hosts receiving
such a packet have to treat it like hop_limit was set to one, according
to RFC2460. Therefore I don't see a use-case for that.
Setting a route's hop_limit to zero in iproute2 means to use the sysctl
default, which is not the case here: Setting e.g.
net.conf.eth0.hop_limit=0 will not make the kernel use
net.conf.all.hop_limit for outgoing packets on eth0. To avoid these
kinds of confusion, reject zero.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Paolo Abeni [Tue, 1 Dec 2015 17:33:36 +0000 (18:33 +0100)]
openvswitch: fix hangup on vxlan/gre/geneve device deletion
Each openvswitch tunnel vport (vxlan,gre,geneve) holds a reference
to the underlying tunnel device, but never released it when such
device is deleted.
Deleting the underlying device via the ip tool cause the kernel to
hangup in the netdev_wait_allrefs() loop.
This commit ensure that on device unregistration dp_detach_port_notify()
is called for all vports that hold the device reference, properly
releasing it.
Fixes:
614732eaa12d ("openvswitch: Use regular VXLAN net_device device")
Fixes:
b2acd1dc3949 ("openvswitch: Use regular GRE net_device instead of vport")
Fixes:
6b001e682e90 ("openvswitch: Use Geneve device.")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kazuya Mizuguchi [Tue, 1 Dec 2015 17:04:39 +0000 (02:04 +0900)]
ravb: ptp: Add CONFIG mode support
This patch makes PTP support active in CONFIG mode on R-Car Gen3.
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 19:17:51 +0000 (14:17 -0500)]
Merge branch 'netronome-NFP4000-NFP6000'
Jakub Kicinski says:
====================
Netronome NFP4000/NFP6000 NIC VF driver
This patchset adds support for VFs of Netronome's NFP-4000 and NFP-6000
based NICs. We are currently also preparing the submission for the PF
driver, but it is not quite ready yet. The PF driver can be found on
GitHub:
https://github.com/Netronome/nfp-drv-kmods
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 1 Dec 2015 14:55:22 +0000 (14:55 +0000)]
net: add driver for Netronome NFP4000/NFP6000 NIC VFs
Add driver for Virtual Functions for the Netronome's
NFP-4000 and NFP-6000 based NICs.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 1 Dec 2015 14:55:21 +0000 (14:55 +0000)]
pci_ids: add Netronome Systems vendor
Add PCI vendor id for Netronome Systems.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 17:11:00 +0000 (12:11 -0500)]
Merge branch '40GbE' of git://git./linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
40GbE Intel Wired LAN Driver Updates 2015-12-03
This series contains updates to i40e and i40evf only.
Mitch updates the i40evf driver by increasing the maximum number of queues,
since future devices will allow for more queue pairs. Cleans up a
duplicate printing of the driver info string done in init, since it is
already done in probe. Cleaned up the several allocations which did
not need to be at atomic level, where GFP_KERNEL would work just fine.
Then makes i40e_sync_vsi_filters() a more mature function, make having
a common exit point so it will properly release the busy lock on the VSI
and propagate errors to the callers. Then does some whitespace
housekeeping in i40evf.
Kiran moves and updates the detection/recovery of transmit queue hang code
to service_task from tx_timeout function. Also fixed memory leak when
users program flow-director filter using ethtool (sideband filter
programming), the cause being the check of 'tx_buffer->skb' was preventing
'raw_buf' from being freed as part of the cleanup.
Jesse enabled the ability to turn off/on packet split using ethtool priv
flags. Then does some housekeeping for both the i40e and i40evf drivers
which includes: remove unused/useless code, correct whitespace, remove
duplicate #include, fix incorrect comment, etc...
Neerav cleans up functions to gather Flow Control Rx XOFF stats, since
the recent change in the driver logic for checking transmit hang has been
moved, so these functions do not do anything meaningful any longer.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 17:08:48 +0000 (12:08 -0500)]
Merge branch 'mlx5-connectx-4-sriov'
Or Gerlitz says:
====================
Introducing ConnectX-4 Ethernet SRIOV
This patchset introduces the support of Ethernet SRIOV in ConnectX-4
family of 100G Ethernet NICs.
Some features are still missing, but all the basic SRIOV functionalities
are there already.
Basic Introduction:
ConnectX-4 HW architecture provides two kinds of underlying HW switches.
MPFS (Multi Physical Function Switch) or L2 Table in Software terms:
The HCA has one MPFS switch per physical port, this switch is responsible
of forwarding Unicast traffic to the various overlying Physical Functions (PFs).
Multicast traffic is flooded amongst all the PFs, Each PF can request to
forward a unicast MAC to its E-Switch Uplink vport (which we will cover later)
through SET_L2_TABLE_ENTRY HW command.
MPFS has five ports, four are connected to PFs (one for each) and one is connected
directly to the Physical Port (Physical Link).
E-Switch (Ethernet Switch):
The HCA has one per physical function. The main responsibility of this component is
to forward Unicast/Multicast and vlan tagged/untagged traffic to the various
Virtual Functions (VFs) allocated by the PF. Unlike MPFS, the PF needs to explicitly
create the E-Switch FDB table, Which is a HW flow table managed by the PF driver
whenever vport_group_manager capability bit is set for this PF.
E-Switch has Virtual Ports (vports) entities as its ports, vport0 and uplink vport
are special kind of vports that represents PF vport (vport0) and uplink vport which
is connected to the MPFS switch (if exists) as the PF external link.
vport1..vportN represent VF0..VF(N-1) egress/ingress ports.
E-Switch FDB contains forwarding rules such as:
UC MAC0 -> vport0(PF).
UC MAC1 -> vport1.
UC MAC2 -> vport2.
MC MACX -> vport0, vport2, Uplink.
MC MACY -> vport1, Uplink.
For unmatched traffic FDB has the following default rules:
Unmatched Traffic (src vport != Uplink) -> Uplink.
Unmatched Traffic (src vport == Uplink) -> vport0(PF).
NIC VPort context:
Each NIC (VF/PF) has its own vport context which will be used to store the current
NIC vport context (UC/MC and vlan lists) and other NIC properties such as MTU, promisc
mode, etc.. NIC (VF/PF) driver is responsible of constantly updating this context.
FDB rules population:
Each NIC vport (VF/PF) will notify E-Switch manager of its UC/MC vport
context changes via modify vport context command, which will be
translated to an event that will be handled by E-Switch manager (PF)
which will update FDB table accordingly.
Both PF and VF use the same driver and submit commands directly to the firmware.
The PF sees the vport_group_manager capability bit and as such runs the code
to populate the embedded switches as explained above.
The patch goes as follows:
Patches 1-2 introduces the basic PCI SRIOV functionalities and the support of
Connectx4 to enable specific VFs via enable/disable HCA commands. These two
patches will be also in use later for the IB SRIOV flow.
Patches 3-8 Introduces the basic E-Switch capabilities and commands to be used later by
VF to modify and update its NIC vport context, and by PF (E-Switch Manager) driver to
Query the VF NIC context and acts accordingly.
Patches 9-10 Provide the needed functionality of a NIC driver VF/PF to support SRIOV,
mainly vport context update support.
Patch 11 ("net/mlx5: Introducing E-Switch and l2 table"), Introduces the basic
E-Switch support and infrastructure to read vport context events and to update
MPFS L2 Table of the UC mac addresses request by the PF.
Patches 12-18 Introduces SRIOV enablemenet and E-Switch FDB table management
It adds the Basic E-Swtich public API to set and get sriov properties to be used
in PF netdev sriov ndos.
Patchset was applied ontop of commit 3f8c0f7 "gianfar: use of_property_read_bool()"
Saeed, Eli and Or.
changes from V0, addressed feedback from Alex Duyck:
- patch 09, remove the loop to seek the device address
- patch 09, avoid using array as returned value from helper function
- patch 10, fix possible buffer over-run
changes from V1, addressed feedback from and Julia Lawall and kbuild test robot
- patch 11 check the right variable for allocation failure
- patch 18 eliminated unneeded semicolon
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:25 +0000 (18:03 +0200)]
net/mlx5e: Add support for SR-IOV ndos
Implement and enable SR-IOV ndos to manage SR-IOV configuration via
netdev netlink API.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:24 +0000 (18:03 +0200)]
net/mlx5: E-Switch, Introduce get vf statistics
Add support to get VF statistics using query vport
counter command.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:23 +0000 (18:03 +0200)]
net/mlx5: E-Switch, Introduce set vport vlan (VST mode)
Add query and modify functions to control client vlan and qos
striping or insertion, in E-Switch vports contexts.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:22 +0000 (18:03 +0200)]
net/mlx5: E-Switch, Introduce HCA cap and E-Switch vport context
E-Switch vport context is unlike NIC vport context, managed by the
E-Switch manager or vport_group_manager and not by the NIC(VF) driver.
The E-Switch manager can access (read/modify) any of its vports
E-Switch context.
Currently E-Switch vport context includes only clietnt and server
vlan insertion and striping data (for later support of VST mode).
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:21 +0000 (18:03 +0200)]
net/mlx5: E-Switch, Introduce Vport administration functions
Implement set VF mac/link state and query VF config
to be used later in nedev VF ndos or any other management API.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:20 +0000 (18:03 +0200)]
net/mlx5: E-Switch, Add SR-IOV (FDB) support
Enabling E-Switch SRIOV for nvfs+1 vports.
Create E-Switch FDB for L2 UC/MC mac steering between VFs/PF and
external vport (Uplink).
FDB contains forwarding rules such as:
UC MAC0 -> vport0(PF).
UC MAC1 -> vport1.
UC MAC2 -> vport2.
MC MACX -> vport0, vport2, Uplink.
MC MACY -> vport1, Uplink.
For unmatched traffic FDB has the following default rules:
Unmached Traffic (src vport != Uplink) -> Uplink.
Unmached Traffic (src vport == Uplink) -> vport0(PF).
FDB rules population:
Each NIC vport (VF) will notify E-Switch manager of its UC/MC vport
context changes via modify vport context command, which will be
translated to an event that will be handled by E-Switch manager (PF)
which will update FDB table accordingly.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:19 +0000 (18:03 +0200)]
net/mlx5: E-Switch, Introduce FDB hardware capabilities
Define needed hardware structures and capabilities needed
for E-Switch FDB flow tables and read them on driver load.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:18 +0000 (18:03 +0200)]
net/mlx5: Introducing E-Switch and l2 table
E-Switch is the software entity that represents and manages ConnectX4
inter-HCA ethernet l2 switching.
E-Switch has its own Virtual Ports, each Vport/vNIC/VF can be
connected to the device through a vport of an e-switch.
Each e-switch is managed by one vNIC identified by
HCA_CAP.vport_group_manager (usually it is the PF/vport[0]),
and its main responsibility is to forward each packet to the
right vport.
e-Switch needs to manage its own l2-table and FDB tables.
L2 table is a flow table that is managed by FW, it is needed for
Multi-host (Multi PF) configuration for inter HCA switching between
PFs.
FDB table is a flow table that is totally managed by e-Switch driver,
its main responsibility is to switch packets between e-Swtich internal
vports and uplink vport that belong to the same.
This patch introduces only e-Swtich l2 table management, FDB managemnt
will come later when ethernet SRIOV/VFs will be enabled.
preperation for ethernet sriov and l2 table management.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:17 +0000 (18:03 +0200)]
net/mlx5e: Write vlan list into vport context
Each Vport/vNIC must notify underlying e-Switch layer
for vlan table changes in-order to update SR-IOV FDB tables.
We do that at vlan_rx_add_vid and vlan_rx_kill_vid ndos.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:16 +0000 (18:03 +0200)]
net/mlx5e: Write UC/MC list and promisc mode into vport context
Each Vport/vNIC must notify underlying e-Switch layer
for UC/MC list and promisc mode updates, in-order to update
l2 tables and SR-IOV FDB tables.
We do that at set_rx_mode ndo.
preperation for ethernet-SRIOV and l2 table management.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:15 +0000 (18:03 +0200)]
net/mlx5: Introduce access functions to modify/query vport vlans
Those functions are needed to notify the upcoming L2 table and SR-IOV
E-Switch(FDB) manager(PF), of the NIC vport (vf) vlan table changes.
preperation for ethernet sriov and l2 table management.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:14 +0000 (18:03 +0200)]
net/mlx5: Introduce access functions to modify/query vport promisc mode
Those functions are needed to notify the upcoming SR-IOV
E-Switch(FDB) manager(PF), of the NIC vport (vf) promisc mode changes.
Preperation for ethernet sriov and l2 table management.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:13 +0000 (18:03 +0200)]
net/mlx5: Introduce access functions to modify/query vport state
In preparation for SR-IOV we add here an API to enable each e-switch
manager (PF) to configure its VFs link states in e-switch
preparation for ethernet sriov.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:12 +0000 (18:03 +0200)]
net/mlx5: Introduce access functions to modify/query vport mac lists
Those functions are needed to notify the upcoming L2 table and SR-IOV
E-Switch(FDB) manager(PF), of the NIC vport (vf) UC/MC mac lists
changes.
preperation for ethernet sriov and l2 table management.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:11 +0000 (18:03 +0200)]
net/mlx5: Update access functions to Query/Modify vport MAC address
In preparation for SR-IOV we add here an API to enable each e-switch
client (PF/VF) to configure its L2 MAC addresses and for the e-switch
manager (usually the PF) to access them in order to be able to
configure them into the e-switch.
Therefore we now pass vport num parameter to
mlx5_query_nic_vport_context, so PF can access other vports contexts.
preperation for ethernet sriov and l2 table management.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed [Tue, 1 Dec 2015 16:03:10 +0000 (18:03 +0200)]
net/mlx5: Add HW capabilities and structs for SR-IOV E-Switch
Update HCA capabilities and HW struct to include needed
capabilities for upcoming Ethernet Switch (SR-IOV E-Switch).
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eli Cohen [Tue, 1 Dec 2015 16:03:09 +0000 (18:03 +0200)]
net/mlx5_core: Add base sriov support
This patch adds SRIOV base support for mlx5 supported devices. The same
driver is used for both PFs and VFs; VFs are identified by the driver
through the flag MLX5_PCI_DEV_IS_VF added to the pci table entries.
Virtual functions are created as usual through writing a value to the
sriov_numvs sysfs file of the PF device. Upon instantiating VFs, they will
all be probed by the driver on the hypervisor. One can gracefully unbind
them through /sys/bus/pci/drivers/mlx5_core/unbind.
mlx5_wait_for_vf_pages() was added to ensure that when a VF dies without
executing proper teardown, the hypervisor driver waits till all of the
pages that were allocated at the hypervisor to maintain its operation
are returned.
In order for the VF to be operational, the PF needs to call enable_hca
for it. This can be done before the VFs are created through a call to
pci_enable_sriov.
If the there are VFs assigned to a VMs when the driver of the PF is
unloaded, all the VF will experience system error and PF driver unloads
cleanly; in this case pci_disable_sriov is not called and the devices
will show when running lspci. Once the PF driver is reloaded, it will
sync its data structures which maintain state on its VFs.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eli Cohen [Tue, 1 Dec 2015 16:03:08 +0000 (18:03 +0200)]
net/mlx5_core: Modify enable/disable hca functions
Modify these functions to have func_id argument to state which device we
are referring to. This is done as a preparation for SRIOV support where
a PF driver needs to control its virtual functions.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Tue, 1 Dec 2015 15:31:08 +0000 (16:31 +0100)]
ipv4: igmp: Allow removing groups from a removed interface
When a multicast group is joined on a socket, a struct ip_mc_socklist
is appended to the sockets mc_list containing information about the
joined group.
If the interface is hot unplugged, this entry becomes stale. Prior to
commit
52ad353a5344f ("igmp: fix the problem when mc leave group") it
was possible to remove the stale entry by performing a
IP_DROP_MEMBERSHIP, passing either the old ifindex or ip address on
the interface. However, this fix enforces that the interface must
still exist. Thus with time, the number of stale entries grows, until
sysctl_igmp_max_memberships is reached and then it is not possible to
join and more groups.
The previous patch fixes an issue where a IP_DROP_MEMBERSHIP is
performed without specifying the interface, either by ifindex or ip
address. However here we do supply one of these. So loosen the
restriction on device existence to only apply when the interface has
not been specified. This then restores the ability to clean up the
stale entries.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Fixes:
52ad353a5344f "(igmp: fix the problem when mc leave group")
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 1 Dec 2015 15:20:07 +0000 (07:20 -0800)]
ipv6: sctp: implement sctp_v6_destroy_sock()
Dmitry Vyukov reported a memory leak using IPV6 SCTP sockets.
We need to call inet6_destroy_sock() to properly release
inet6 specific fields.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 17:04:05 +0000 (12:04 -0500)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth
Johan Hedberg says:
====================
pull request: bluetooth 2015-12-01
Here's a Bluetooth fix for the 4.4-rc series that fixes a memory leak of
the Security Manager L2CAP channel that'll happen for every LE
connection.
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jarod Wilson [Mon, 30 Nov 2015 22:33:36 +0000 (17:33 -0500)]
alx: remove pointless assignment
Reasonably sure this doesn't serve any purpose.
CC: Jay Cliburn <jcliburn@gmail.com>
CC: Chris Snook <chris.snook@gmail.com>
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 16:49:30 +0000 (11:49 -0500)]
Merge branch 'bonding-team-offload'
Jiri Pirko says:
====================
bonding/team offload + mlxsw implementation
This patchset introduces needed infrastructure for link aggregation
offload - for both team and bonding. It also implements the offload
in mlxsw driver.
Particulary, this patchset introduces possibility for upper driver
(bond/team/bridge/..) to pass type-specific info down to notifier listeners.
Info is passed along with NETDEV_CHANGEUPPER/NETDEV_PRECHANGEUPPER
notifiers. Listeners (drivers of netdevs being enslaved) can react
accordingly.
Other extension is for run-time use. This patchset introduces
new netdev notifier type - NETDEV_CHANGELOWERSTATE. Along with this
notification, the upper driver (bond/team/bridge/..) can pass some
information about lower device change, particulary link-up and
TX-enabled states. Listeners (drivers of netdevs being enslaved)
can react accordingly.
The last part of the patchset is implementation of LAG offload in mlxsw,
using both previously introduced infrastructre extensions.
Note that bond-speficic (and ugly) NETDEV_BONDING_INFO used by mlx4
can be removed and mlx4 can use the extensions this patchset adds.
I plan to convert it and get rid of NETDEV_BONDING_INFO in
a follow-up patchset.
v2->v3:
- one small fix in patch 1
v1->v2:
- added patch 1 and 2 per Andy's request
- couple of more or less cosmetic changes described in couple other patches
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:30 +0000 (12:12 +0100)]
mlxsw: spectrum: Implement LAG tx enabled lower state change
Enabling/disabling TX on a LAG port means enabling/disabling distribution
in our HW.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:29 +0000 (12:12 +0100)]
mlxsw: spectrum: Implement FDB add/remove/dump for LAG
Implement FDB offloading for lagged ports, including learning LAG FDB
entries, adding/removing static FDB entries and dumping existing LAG FDB
entries.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:28 +0000 (12:12 +0100)]
mlxsw: spectrum: Implement LAG port join/leave
Implement basic procedures for joining/leaving port to/from LAG. That
includes HW setup of collector, core LAG mapping setup.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:27 +0000 (12:12 +0100)]
mlxsw: reg: Add definition of LAG unicast record for SFN register
LAG-related records have specific format in SFN register.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:26 +0000 (12:12 +0100)]
mlxsw: reg: Add definition of LAG unicast record for SFD register
LAG-related records have specific format in SFD register.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:25 +0000 (12:12 +0100)]
mlxsw: reg: Add link aggregation configuration registers definitions
Add definitions of SLDR, SLCR2, SLCOR registers that are used to
configure LAG.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:24 +0000 (12:12 +0100)]
mlxsw: pci: Implement LAG processing for received packets
Completion queue element for receive queue provides information if the
packet was received via LAG port. Extract this info and pass it along
to core.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:23 +0000 (12:12 +0100)]
mlxsw: core: Add support for packets received from LAG port
Lower layer (pci) has information if the packet is received via LAG port.
If that is the case, it fills up rx_info accordingly. However upper
layer does not care about lag_id/port_index for received packets so
convert it to local_port before passing it up. For that conversion, lag
mapping array is introduced. Upper layer is responsible for setting up
the mapping according to what is set in HW.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:22 +0000 (12:12 +0100)]
mlxsw: spectrum: Add set_rx_mode ndo stub
Add just a stub for now. This allows to pass check in dev_ifsioc,
SIOCADDMULTI and SIOCDELMULTI cases. Teamd is using these to add LACP
slow MAC.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:21 +0000 (12:12 +0100)]
bonding: set inactive flags on release
Be correct and symmetric to enslave and set inactive flags during release.
That gives LAG offload drivers - lower state change listeners - possibility
to do proper cleanup.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:20 +0000 (12:12 +0100)]
bonding: implement lower state change propagation
Let netdev notifier listeners know about link and slave state change.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:19 +0000 (12:12 +0100)]
bonding: allow notifications for bond_set_slave_link_state
Similar to state notifications.
We allow caller to indicate if the notification should happen now or later,
depending on if he holds rtnl mutex or not. Introduce bond_slave_link_notify
function (similar to bond_slave_state_notify) which is later on called
with rtnl mutex and goes over slaves and executes delayed notification.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:18 +0000 (12:12 +0100)]
team: implement lower state change propagation
Let netdev notifier listeners know about link-up and port-enable state
changes.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:17 +0000 (12:12 +0100)]
team: rtnl_lock for options set
During options set, there will be needed to hold rtnl_mutex in order to
safely call netdev notifiers.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:16 +0000 (12:12 +0100)]
net: introduce lower state changed info structure for LAG lowers
This is shared info structure for bonding and team. Serves to pass down
info about link state and port activity to notification listeners.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:15 +0000 (12:12 +0100)]
net: introduce change lower state notifier
When lower device like bonding slave, team/bridge port, etc changes its
state, it is useful for others to notice this change. Currently this is
implemented specificly for bonding as NETDEV_BONDING_INFO notifier. This
patch aims to replace this specific usage and make this more generic to
be used for all upper-lower devices.
Introduce NETDEV_CHANGELOWERSTATE netdev notifier type and
netdev_lower_state_changed() helper.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:14 +0000 (12:12 +0100)]
bonding: fill-up LAG changeupper info struct and pass it along
Initialize netdev_lag_upper_info structure by TX type according to
current bonding mode and pass it along via netdev_master_upper_dev_link.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:13 +0000 (12:12 +0100)]
team: fill-up LAG changeupper info struct and pass it along
Initialize netdev_lag_upper_info structure by TX type according to
current team mode and pass it along via netdev_master_upper_dev_link.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:12 +0000 (12:12 +0100)]
net: add info struct for LAG changeupper
This struct will be shared by bonding and team to pass internal
information to notifier listeners.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:11 +0000 (12:12 +0100)]
net: add possibility to pass information about upper device via notifier
Sometimes the drivers and other code would find it handy to know some
internal information about upper device being changed. So allow upper-code
to pass information down to notifier listeners during linking.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:10 +0000 (12:12 +0100)]
net: propagate upper priv via netdev_master_upper_dev_link
Eliminate netdev_master_upper_dev_link_private and pass priv directly as
a parameter of netdev_master_upper_dev_link.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:09 +0000 (12:12 +0100)]
net: add netif_is_lag_port helper
Some code does not mind if a device is bond slave or team port and treats
them the same, as generic LAG ports.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:08 +0000 (12:12 +0100)]
net: add netif_is_lag_master helper
Some code does not mind if the master is bond or team and treats them
the same, as generic LAG.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:07 +0000 (12:12 +0100)]
net: add netif_is_team_port helper
Similar to other helpers, caller can use this to find out if device is
team port.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:06 +0000 (12:12 +0100)]
net: add netif_is_team_master helper
Similar to other helpers, caller can use this to find out if device is
team master.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Pirko [Thu, 3 Dec 2015 11:12:05 +0000 (12:12 +0100)]
bonding: add 802.3ad support for 100G speeds
Similar to other speeds, add 100G to bonding 802.3ad code.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Thu, 3 Dec 2015 11:12:04 +0000 (12:12 +0100)]
net: Add support for CHANGEUPPER notifier error injection
Since CHANGEUPPER can now fail, add support for it in the newly
introduced netdev notifier error injection infrastructure.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Thu, 3 Dec 2015 11:12:03 +0000 (12:12 +0100)]
net: Check CHANGEUPPER notifier return value
switchdev drivers reflect the newly requested topology to hardware when
CHANGEUPPER is received, after software links were already formed.
However, the operation can fail and user will not be notified, as the
return value of the notifier is not checked.
Add this check and rollback software links if necessary.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Joe Perches [Thu, 3 Dec 2015 12:20:57 +0000 (04:20 -0800)]
i40e: Fix i40e_print_features() VEB mode output
Commit
7fd89545f337 ("i40e: remove BUG_ON from feature string building")
added defective output when I40E_FLAG_VEB_MODE_ENABLED was set in
function i40e_print_features.
Fix it.
Miscellanea:
- Remove unnecessary string variable
- Add space before not after fixed strings
- Use kmalloc not kzalloc
- Don't initialize i to 0, use result of first snprintf
Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 3 Dec 2015 16:43:32 +0000 (11:43 -0500)]
Merge branch '10GbE' of git://git./linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2015-12-03
This series contains updates to ixgbe and ixgbevf only.
Mark cleans up ixgbe_init_phy_ops_x550em, since this was designed to
initialize function pointers only and moves the KR PHY reset to the
ixgbe_setup_internal_phy_t_x550em which was designed to detect which
mode the PHY operates in and set it up. Added the new thermal alarm
type support used with newer X550EM_x devices. Fixed both ixgbe and
ixgbevf to use a private work queue to avoid hangs, which would
possibly occur when creating and destroying many VFS repeatedly.
Updated ixgbe PTP implementation to accommodate X550EM_x devices,
which handle clocking differently. Fixed specification violations
in the datasheet, which was reported by Dan Streetman. Fixed ixgbe
to check for and handle IPv6 extended headers so that Tx checksum
offload can be done, which was reported by Tom Herbert. Fixed ixgbe
link issue for some systems with X540 or X550 by only inhibiting the
turning PHY power off when manageability is present.
Alex Duyck refactors the MAC address configuration code, which in
turns fixes an issue where once 63 entries had been used, you could no
longer add additional filters. Updated ixgbe to use __dev_uc_sync
which also resolved an issue in which you could not remove an FDB
address without having to reset the port. Updated the ixgbe driver
to make use of all the free RAR entries for FDB use if needed.
v2: updated patch 13 to "Alex Duyck Approved" version, in the original
submission, I had grabbed a previous version of the patch and did not
catch it was superseded by a later version
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Yang Shi [Mon, 30 Nov 2015 22:24:07 +0000 (14:24 -0800)]
arm64: bpf: add 'store immediate' instruction
aarch64 doesn't have native store immediate instruction, such operation
has to be implemented by the below instruction sequence:
Load immediate to register
Store register
Signed-off-by: Yang Shi <yang.shi@linaro.org>
CC: Zi Shen Lim <zlim.lnx@gmail.com>
CC: Xi Wang <xi.wang@gmail.com>
Reviewed-by: Zi Shen Lim <zlim.lnx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 3 Dec 2015 05:53:57 +0000 (21:53 -0800)]
ipv6: kill sk_dst_lock
While testing the np->opt RCU conversion, I found that UDP/IPv6 was
using a mixture of xchg() and sk_dst_lock to protect concurrent changes
to sk->sk_dst_cache, leading to possible corruptions and crashes.
ip6_sk_dst_lookup_flow() uses sk_dst_check() anyway, so the simplest
way to fix the mess is to remove sk_dst_lock completely, as we did for
IPv4.
__ip6_dst_store() and ip6_dst_store() share same implementation.
sk_setup_caps() being called with socket lock being held or not,
we have to use sk_dst_set() instead of __sk_dst_set()
Note that I had to move the "np->dst_cookie = rt6_get_cookie(rt);"
in ip6_dst_store() before the sk_setup_caps(sk, dst) call.
This is because ip6_dst_store() can be called from process context,
without any lock held.
As soon as the dst is installed in sk->sk_dst_cache, dst can be freed
from another cpu doing a concurrent ip6_dst_store()
Doing the dst dereference before doing the install is needed to make
sure no use after free would trigger.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Thu, 3 Dec 2015 05:48:14 +0000 (21:48 -0800)]
ipv6: sctp: add rcu protection around np->opt
This patch completes the work I did in commit
45f6fad84cc3
("ipv6: add complete rcu protection around np->opt"), as I missed
sctp part.
This simply makes sure np->opt is used with proper RCU locking
and accessors.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mark Rustad [Thu, 19 Nov 2015 21:56:30 +0000 (13:56 -0800)]
ixgbevf: Handle extended IPv6 headers in Tx path
Check for and handle IPv6 extended headers so that Tx checksum
offload can be done. Also use skb_checksum_help for unexpected
cases. Thanks to Tom Herbert for noticing these problems. Thanks
to Alexander Duyck for seeing how to coalesce the error handling
into one location.
Reported-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>