Ido Shamay [Tue, 3 Feb 2015 15:57:21 +0000 (17:57 +0200)]
net/mlx4_en: Notify TX Vlan offload change
Notify users when TX vlan offload feature changed with ethtool.
Relevant command - ethtool -K <eth> txvlan on/off.
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Shamay [Tue, 3 Feb 2015 15:57:20 +0000 (17:57 +0200)]
net/mlx4_en: Adjust RX frag strides to frag sizes
This patch improves memory utilization and therefore the packets rate
for special MTU's. Instead of setting the frag_stride to the maximal
hard coded frag_size, use the actual frag_size that is set according to
the MTU, when setting the stride of the last frag.
So, for example, for MTU 1600, where the frag_size of the 2nd frag is
86, the frag_size is set to 128 instead of 4096. See below:
Before:
frag:0 - size:1536 prefix:0 stride:1536
frag:1 - size:86 prefix:1536 stride:4096
frag 0 allocator: - size:32768 frags:21
frag 1 allocator: - size:32768 frags:8
After:
frag:0 - size:1536 prefix:0 stride:1536
frag:1 - size:86 prefix:1536 stride:128
frag 0 allocator: - size:32768 frags:21
frag 1 allocator: - size:32768 frags:256
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Shamay [Tue, 3 Feb 2015 15:57:19 +0000 (17:57 +0200)]
net/mlx4_en: Print page allocator information
After Initialization of page_alloc, print actual allocated page
size and number of frags it contains. prints is done only when drv
message level is set on the interface.
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Tue, 3 Feb 2015 15:57:18 +0000 (17:57 +0200)]
net/mlx5_core: Move to use hex PCI device IDs
Align the IDs in the code with the modinfo, lspci -n, etc tools outputs.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Or Gerlitz [Tue, 3 Feb 2015 15:57:17 +0000 (17:57 +0200)]
net/mlx4_core: Fix misleading debug print on CQE stride support
We do support cache line sizes of 32 and 64 bytes without activating the
CQE stride feature. Fix a misleading print saying that these cache line
sizes aren't supported.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maor Gottlieb [Tue, 3 Feb 2015 15:57:16 +0000 (17:57 +0200)]
net/mlx4: mlx4_config_dev_retrieval() - Initialize struct config_dev before using
Add Initialization to struct config_dev before filling and using it.
Fix to warning:
warning: config_dev.rx_checksum_val may be used uninitialized in this function
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Maor Gottlieb [Tue, 3 Feb 2015 15:57:15 +0000 (17:57 +0200)]
net/mlx4_core: Fix mpt_entry initialization in mlx4_mr_rereg_mem_write()
a) Previously, mlx4_mr_rereg_write filled the MPT's start
and length with the old MPT's values.
Fixing the initialization to take the new start and length.
b) In addition access flags in mpt_status were initialized instead of
status due to bad boolean operation. Fixing the operation.
c) Initialization of pd_slave caused a protection error.
Fix - removing this initialization.
d) In resource_tracker.c: Fixing vf encoding to be one-based.
Fixes:
e630664c ('mlx4_core: Add helper functions to support MR re-registration')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Feb 2015 00:14:29 +0000 (16:14 -0800)]
Merge branch 'mlx4-next'
Or Gerlitz says:
====================
Add HA and LAG support to mlx4 RoCE and SRIOV services
This series takes advanges of bonding mlx4 Ethernet devices to support
a model of High-Availability and Link Aggregation for more environments.
The mlx4 driver reacts on netdev events generated by bonding when
slave state changes happen by programming a HW V2P (Virt-to-Phys)
port table. Bonding was extended to expose these state changes
through netdev events.
When an mlx4 interface such as the mlx4 IB/RoCE driver is subject to
this policy, QPs are created over virtual ports which are mapped
to one of the two physical ports. When a failure happens, the
re-programming of the V2P table allows traffic to keep flowing.
The mlx4 Ethernet driver interfaces are not subject to this
policy and act as usual.
A 2nd use-case for this model would be to add HA and Link Aggregation
support to single ported mlx4 Ethernet VFs. In this case, the PF Ethernet
intrfaces are bonded, all the VFs see single port devices (which is
supported already today), and VF QPs are subject to V2P.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:39 +0000 (16:48 +0200)]
IB/mlx4: Load balance ports in port aggregation mode
When the mlx4 IB (RoCE) device works in link aggregation mode, it
exposes a single port to upper layers. Therefore, applications always
set '1' in port_num attribute when modifying a QP or creating an address handle.
To make sure that a node uses all available ports the mlx4 driver will
override the port_num attribute with a round robin policy.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:38 +0000 (16:48 +0200)]
IB/mlx4: Create mirror flows in port aggregation mode
In port aggregation mode flows for port #1 (the only port) should be mirrored
on port #2. This is because packets can arrive from either physical ports.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:37 +0000 (16:48 +0200)]
IB/mlx4: Add port aggregation support
Register the interface with the mlx4 core driver with port aggregation support
and check for port aggregation mode when the 'add' function is called.
In this mode, only one physical port is reported to the upper layer
(RoCE/IB core stack and ULPs).
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:36 +0000 (16:48 +0200)]
IB/mlx4: Reuse mlx4_mac_to_u64()
This function is implemented twice... get rid of one copy.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:34 +0000 (16:48 +0200)]
net/mlx4_en: Port aggregation configuration
Capture NETDEV events generated by the bonding driver and based on that
make decisions of how to configure port aggregation in the mlx4 core driver.
This includes setting the V2P port table and re-creating the interested
interfaces in bonded/non-bonded mode.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:33 +0000 (16:48 +0200)]
net/mlx4_core: Port aggregation upper layer interface
Supply interface functions to bond and unbond ports of a mlx4 internal
interfaces. Example for such an interface is the one registered by the
mlx4 IB driver under RoCE.
There are
1. Functions to go in/out to/from bonded mode
2. Function to remap virtual ports to physical ports
The bond_mutex prevents simultaneous access to data that keep status of
the device in bonded mode.
The upper mlx4 interface marks to the mlx4 core module that they
want to be subject for such bonding by setting the MLX4_INTFF_BONDING
flag. Interface which goes to/from bonded mode is re-created.
The mlx4 Ethernet driver does not set this flag when registering the
interface, the IB driver does.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:32 +0000 (16:48 +0200)]
net/mlx4_core: Port aggregation low level interface
Implement the hardware interface required for port aggregation.
1. Disable RX port check on receive - don't perform a validity check
that matches to QP's port and the port where the packet is received.
2. Virtual to physical port remap - configure virtual to physical port
mapping. Port remap capability for virtual functions.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:31 +0000 (16:48 +0200)]
net/bonding: Notify state change on slaves
Use notifier chain to dispatch an event upon a change in slave state.
Event is dispatched with slave specific info.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:30 +0000 (16:48 +0200)]
net/bonding: Move slave state changes to a helper function
Move slave state changes to a helper function, this is a pre-step for adding
functionality of dispatching an event when this helper is called.
This commit doesn't add new functionality.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Moni Shoua [Tue, 3 Feb 2015 14:48:29 +0000 (16:48 +0200)]
net/core: Add event for a change in slave state
Add event which provides an indication on a change in the state
of a bonding slave. The event handler should cast the pointer to the
appropriate type (struct netdev_bonding_info) in order to get the
full info about the slave.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 5 Feb 2015 00:09:38 +0000 (16:09 -0800)]
Merge branch 'tipc-next'
Jon Maloy says:
====================
tipc: some small fixes
During extensive testing and analysis of running dual links between
nodes, we have encountered some issues that potentially may cause
problems. We choose to fix those proactively in this series.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Tue, 3 Feb 2015 13:59:20 +0000 (08:59 -0500)]
tipc: separate link starting event from link timeout event
When a new link instance is created, it is trigged to start by
sending it a TIPC_STARTING_EVT, whereafter a regular link
reset is applied to it.
The starting event is codewise treated as a timeout event, and prompts
a link RESET message to be sent to the peer node, carrying a link
session identifier. The later link_reset() call nudges this session
identifier, whereafter all subsequent RESET messages will be sent out
with the new identifier. The latter session number overrides the former,
causing the peer to unconditionally accept it irrespective of its
current working state.
We don't think that this causes any problem, but it is not in accordance
with the protocol spec, and may cause confusion when debugging TIPC
sessions.
To avoid this, we make the starting event distinct from the
subsequent timeout events, by not allowing the former to send
out any RESET message. This eliminates the described problem.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Tue, 3 Feb 2015 13:59:19 +0000 (08:59 -0500)]
tipc: eliminate race during node creation
Instances of struct node are created in the function tipc_disc_rcv()
under the assumption that there is no race between received discovery
messages arriving from the same node. This assumption is wrong.
When we use more than one bearer, it is possible that discovery
messages from the same node arrive at the same moment, resulting in
creation of two instances of struct tipc_node. This may later cause
confusion during link establishment, and may result in one of the links
never becoming activated.
We fix this by making lookup and potential creation of nodes atomic.
Instead of first looking up the node, and in case of failure, create it,
we now start with looking up the node inside node_link_create(), and
return a reference to that one if found. Otherwise, we go ahead and
create the node as we did before.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Tue, 3 Feb 2015 13:59:18 +0000 (08:59 -0500)]
tipc: avoid stale link after aborted failover
During link failover it may happen that the remaining link goes
down while it is still in the process of taking over traffic
from a previously failed link. When this happens, we currently
abort the failover procedure and reset the first failed link to
non-failover mode, so that it will be ready to re-establish
contact with its peer when it comes available.
However, if the first link goes down because its bearer was manually
disabled, it is not enough to reset it; it must also be deleted;
which is supposed to happen when the failover procedure is finished.
Otherwise it will remain a zombie link: attached to the owner node
structure, in mode LINK_STOPPED, and permanently blocking any re-
establishing of the link to the peer via the interface in question.
We fix this by amending the failover abort procedure. Apart from
resetting the link to non-failover state, we test if the link is
also in LINK_STOPPED mode. If so, we delete it, using the conditional
tipc_link_delete() function introduced in the previous commit.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Tue, 3 Feb 2015 13:59:17 +0000 (08:59 -0500)]
tipc: add reference count to struct tipc_link
When a bearer is disabled, all pertaining links will be reset and
deleted. However, if there is a second active link towards a killed
link's destination, the delete has to be postponed until the failover
is finished. During this interval, we currently put the link in zombie
mode, i.e., we take it out of traffic, delete its timer, but leave it
attached to the owner node structure until all missing packets have
been received. When this is done, we detach the link from its node
and delete it, assuming that the synchronous timer deletion that was
initiated earlier in a different thread has finished.
This is unsafe, as the failover may finish before del_timer_sync()
has returned in the other thread.
We fix this by adding an atomic reference counter of type kref in
struct tipc_link. The counter keeps track of the references kept
to the link by the owner node and the timer. We then do a conditional
delete, based on the reference counter, both after the failover has
been finished and when the timer expires, if applicable. Whoever
comes last, will actually delete the link. This approach also implies
that we can make the deletion of the timer asynchronous.
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 4 Feb 2015 22:57:45 +0000 (14:57 -0800)]
Merge tag 'mac80211-next-for-davem-2015-02-03' of git://git./linux/kernel/git/jberg/mac80211-next
Last round of updates for net-next:
* revert a patch that caused a regression with mesh userspace (Bob)
* fix a number of suspend/resume related races
(from Emmanuel, Luca and myself - we'll look at backporting later)
* add software implementations for new ciphers (Jouni)
* add a new ACPI ID for Broadcom's rfkill (Mika)
* allow using netns FD for wireless (Vadim)
* some other cleanups (various)
Signed-off-by: David S. Miller <davem@davemloft.net>
Praveen Madhavan [Tue, 3 Feb 2015 11:48:26 +0000 (17:18 +0530)]
csiostor:Use firmware version from cxgb4/t4fw_version.h
This patch is to use firmware version macros from t4fw_version.h
and also enables 40g T5 adapter.
Signed-off-by: Praveen Madhavan <praveenm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicholas Mc Guire [Tue, 3 Feb 2015 08:45:11 +0000 (03:45 -0500)]
tlan: msecs_to_jiffies convrsion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).
As there is a discrepancy between the code and the comments this is in
a separate patch.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicholas Mc Guire [Tue, 3 Feb 2015 08:44:45 +0000 (03:44 -0500)]
tlan: use msecs_to_jiffies for conversion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 4 Feb 2015 21:56:37 +0000 (13:56 -0800)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2015-02-03
Here's what's likely the last bluetooth-next pull request for 3.20.
Notable changes include:
- xHCI workaround + a new id for the ath3k driver
- Several new ids for the btusb driver
- Support for new Intel Bluetooth controllers
- Minor cleanups to ieee802154 code
- Nested sleep warning fix in socket accept() code path
- Fixes for Out of Band pairing handling
- Support for LE scan restarting for HCI_QUIRK_STRICT_DUPLICATE_FILTER
- Improvements to data we expose through debugfs
- Proper handling of Hardware Error HCI events
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Tue, 3 Feb 2015 00:07:34 +0000 (16:07 -0800)]
net: add skb functions to process remote checksum offload
This patch adds skb_remcsum_process and skb_gro_remcsum_process to
perform the appropriate adjustments to the skb when receiving
remote checksum offload.
Updated vxlan and gue to use these functions.
Tested: Ran TCP_RR and TCP_STREAM netperf for VXLAN and GUE, did
not see any change in performance.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Siva Mannem [Mon, 2 Feb 2015 17:21:54 +0000 (22:51 +0530)]
bridge: Let bridge not age 'externally' learnt FDB entries, they are removed when 'external' entity notifies the aging
When 'learned_sync' flag is turned on, the offloaded switch
port syncs learned MAC addresses to bridge's FDB via switchdev notifier
(NETDEV_SWITCH_FDB_ADD). Currently, FDB entries learnt via this mechanism are
wrongly being deleted by bridge aging logic. This patch ensures that FDB
entries synced from offloaded switch ports are not deleted by bridging logic.
Such entries can only be deleted via switchdev notifier
(NETDEV_SWITCH_FDB_DEL).
Signed-off-by: Siva Mannem <siva.mannem.lnx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
LEROY Christophe [Mon, 2 Feb 2015 17:06:54 +0000 (18:06 +0100)]
net: fs_enet: Implement NETIF_F_SG feature
Freescale ethernet controllers have the capability to re-assemble fragmented
data into a single ethernet frame. This patch uses this capability and
implements NETIP_F_SG feature into the fs_enet ethernet driver.
On a MPC885, I get 53% performance improvement on a ftp transfer of a 15Mb file:
* Without the patch : 2,8 Mbps
* With the patch : 4,3 Mbps
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Wed, 4 Feb 2015 07:48:24 +0000 (23:48 -0800)]
xps: fix xps for stacked devices
A typical qdisc setup is the following :
bond0 : bonding device, using HTB hierarchy
eth1/eth2 : slaves, multiqueue NIC, using MQ + FQ qdisc
XPS allows to spread packets on specific tx queues, based on the cpu
doing the send.
Problem is that dequeues from bond0 qdisc can happen on random cpus,
due to the fact that qdisc_run() can dequeue a batch of packets.
CPUA -> queue packet P1 on bond0 qdisc, P1->ooo_okay=1
CPUA -> queue packet P2 on bond0 qdisc, P2->ooo_okay=0
CPUB -> dequeue packet P1 from bond0
enqueue packet on eth1/eth2
CPUC -> dequeue packet P2 from bond0
enqueue packet on eth1/eth2 using sk cache (ooo_okay is 0)
get_xps_queue() then might select wrong queue for P1, since current cpu
might be different than CPUA.
P2 might be sent on the old queue (stored in sk->sk_tx_queue_mapping),
if CPUC runs a bit faster (or CPUB spins a bit on qdisc lock)
Effect of this bug is TCP reorders, and more generally not optimal
TX queue placement. (A victim bulk flow can be migrated to the wrong TX
queue for a while)
To fix this, we have to record sender cpu number the first time
dev_queue_xmit() is called for one tx skb.
We can union napi_id (used on receive path) and sender_cpu,
granted we clear sender_cpu in skb_scrub_packet() (credit to Willem for
this union idea)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Nandita Dukkipati <nanditad@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 4 Feb 2015 00:22:20 +0000 (16:22 -0800)]
Merge branch 'netlabel-next'
Markus Elfring says:
====================
netlabel: Deletion of a few unnecessary checks
Further update suggestions were taken into account after patches were applied
from static source code analysis.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Markus Elfring [Mon, 2 Feb 2015 10:00:24 +0000 (11:00 +0100)]
netlabel: Less function calls in netlbl_mgmt_add_common() after error detection
The functions "cipso_v4_doi_putdef" and "kfree" could be called in some cases
by the netlbl_mgmt_add_common() function during error handling even if the
passed variables contained still a null pointer.
* This implementation detail could be improved by adjustments for jump labels.
* Let us return immediately after the first failed function call according to
the current Linux coding style convention.
* Let us delete also an unnecessary check for the variable "entry" there.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Markus Elfring [Mon, 2 Feb 2015 09:40:30 +0000 (10:40 +0100)]
netlabel: Deletion of an unnecessary check before the function call "cipso_v4_doi_free"
The cipso_v4_doi_free() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Markus Elfring [Mon, 2 Feb 2015 09:01:45 +0000 (10:01 +0100)]
netlabel: Deletion of an unnecessary check before the function call "cipso_v4_doi_putdef"
The cipso_v4_doi_putdef() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Shruti Kanetkar [Sun, 1 Feb 2015 21:58:31 +0000 (15:58 -0600)]
net/fsl_pq_mdio: Document supported compatibles
The device tree binding(s) document has fallen out of sync with the
driver code. Update the list of supported devices to reflect current
driver capabilities
Change-Id: I440d8de2ee2d9c3b7b23e69b3da851cab18a4c9a
Signed-off-by: Shruti Kanetkar <Kanetkar.Shruti@gmail.com>
Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mika Westerberg [Thu, 29 Jan 2015 16:26:00 +0000 (18:26 +0200)]
net: rfkill: Add Broadcom BCM2E40 bluetooth ACPI ID
This is yet another Broadcom bluetooth chip with ACPI ID BCM2E40.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johan Hedberg [Tue, 3 Feb 2015 08:01:13 +0000 (10:01 +0200)]
Bluetooth: Fix potential NULL dereference
The bnep_get_device function may be triggered by an ioctl just after a
connection has gone down. In such a case the respective L2CAP chan->conn
pointer will get set to NULL (by l2cap_chan_del). This patch adds a
missing NULL check for this case in the bnep_get_device() function.
Reported-by: Patrik Flykt <patrik.flykt@linux.intel.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Matej Dubovy [Mon, 2 Feb 2015 17:50:14 +0000 (18:50 +0100)]
Bluetooth: btusb: Add support for Lite-On (04ca) Broadcom based, BCM43142
Please add support for sub BT chip on the combo card
Broadcom 43142A0 (in Lenovo E145), 04ca:2007
/sys/kernel/debug/usb/devices
T: Bus=05 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=04ca ProdID=2007 Rev= 1.12
S: Manufacturer=Broadcom Corp
S: Product=BCM43142A0
S: SerialNumber=
28E347EC73BD
C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)
Firmware for 04ca:2007 can be extracted from the latest Lenovo E145
Bluetooth driver for Windows (driver is however described as BCM20702
but contains also firwmare for BCM43142).
Search for BCM43142A0_001.001.011.0122.0153.hex within hex files, then
it must be converted using hex2hcd utility. Rename file to
BCM43142A0-04ca-2007.hcd, then move to /lib/firmware/brcm/.
Signed-off-by: Matej Dubovy <matej.dubovy@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Markus Elfring [Sat, 31 Jan 2015 17:10:03 +0000 (18:10 +0100)]
net: sctp: Deletion of an unnecessary check before the function call "kfree"
The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-By: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 3 Feb 2015 03:28:19 +0000 (19:28 -0800)]
Merge branch 'udpv6_lockless_send'
Vladislav Yasevich says:
====================
ipv6: Add lockless UDP send path
This series introduces a lockless UDPv6 send path similar to
what Herbert Xu did for IPv4 a while ago.
There are some difference from IPv4. IPv6 caching for flow
label is a bit different, as well as it requires another cork
cork structure that holds the IPv6 ancillary data.
Please take a look.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Sat, 31 Jan 2015 15:40:18 +0000 (10:40 -0500)]
ipv6: Allow for partial checksums on non-ufo packets
Currntly, if we are not doing UFO on the packet, all UDP
packets will start with CHECKSUM_NONE and thus perform full
checksum computations in software even if device support
IPv6 checksum offloading.
Let's start start with CHECKSUM_PARTIAL if the device
supports it and we are sending only a single packet at
or below mtu size.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Sat, 31 Jan 2015 15:40:17 +0000 (10:40 -0500)]
udpv6: Add lockless sendmsg() support
This commit adds the same functionaliy to IPv6 that
commit
903ab86d195cca295379699299c5fc10beba31c7
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue Mar 1 02:36:48 2011 +0000
udp: Add lockless transmit path
added to IPv4.
UDP transmit path can now run without a socket lock,
thus allowing multiple threads to send to a single socket
more efficiently.
This is only used when corking/MSG_MORE is not used.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Sat, 31 Jan 2015 15:40:16 +0000 (10:40 -0500)]
ipv6: Introduce udpv6_send_skb()
Now that we can individually construct IPv6 skbs to send, add a
udpv6_send_skb() function to populate the udp header and send the
skb. This allows udp_v6_push_pending_frames() to re-use this
function as well as enables us to add lockless sendmsg() support.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Sat, 31 Jan 2015 15:40:15 +0000 (10:40 -0500)]
ipv6: introduce ipv6_make_skb
This commit is very similar to
commit
1c32c5ad6fac8cee1a77449f5abf211e911ff830
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue Mar 1 02:36:47 2011 +0000
inet: Add ip_make_skb and ip_finish_skb
It adds IPv6 version of the helpers ip6_make_skb and ip6_finish_skb.
The job of ip6_make_skb is to collect messages into an ipv6 packet
and poplulate ipv6 eader. The job of ip6_finish_skb is to transmit
the generated skb. Together they replicated the job of
ip6_push_pending_frames() while also provide the capability to be
called independently. This will be needed to add lockless UDP sendmsg
support.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Sat, 31 Jan 2015 15:40:14 +0000 (10:40 -0500)]
ipv6: Append sending data to arbitrary queue
Add the ability to append data to arbitrary queue. This
will be needed later to implement lockless UDP sends.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Sat, 31 Jan 2015 15:40:13 +0000 (10:40 -0500)]
ipv6: pull cork initialization into its own function.
Pull IPv6 cork initialization into its own function that
can be re-used. IPv6 specific cork data did not have an
explicit data structure. This patch creats eone so that
just ipv6 cork data can be as arguemts. Also, since
IPv6 tries to save the flow label into inet_cork_full
tructure, pass the full cork.
Adjust ip6_cork_release() to take cork data structures.
Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Anish Bhatt [Sat, 31 Jan 2015 01:20:17 +0000 (17:20 -0800)]
cxgb4 : Improve IEEE DCBx support, other minor open-lldp fixes
* Add support for IEEE ets & pfc api.
* Fix bug that resulted in incorrect bandwidth percentage being returned for
CEE peers
* Convert pfc enabled info from firmware format to what dcbnl expects before
returning
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Fri, 30 Jan 2015 21:58:19 +0000 (22:58 +0100)]
net/tulip: don't warn about unknown ARM architecture
ARM has 32-byte cache lines, which according to the comment in
the init registers function seems to work best with the default
value of 0x4800 that is also used on sparc and parisc.
This adds ARM to the same list, to use that default but no
longer warn about it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arnd Bergmann [Fri, 30 Jan 2015 21:57:01 +0000 (22:57 +0100)]
net: hip04: add missing MODULE_LICENSE
The hip04 ethernet driver causes a new compile-time warning
when built as a loadable module:
WARNING: modpost: missing MODULE_LICENSE() in drivers/net/ethernet/hisilicon/hip04_eth.o
see include/linux/module.h for more information
This adds the license as "GPL", which matches the header of the file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Westphal [Fri, 30 Jan 2015 19:45:20 +0000 (20:45 +0100)]
net: dctcp: loosen requirement to assert ECT(0) during 3WHS
One deployment requirement of DCTCP is to be able to run
in a DC setting along with TCP traffic. As Glenn Judd's
NSDI'15 paper "Attaining the Promise and Avoiding the Pitfalls
of TCP in the Datacenter" [1] (tba) explains, one way to
solve this on switch side is to split DCTCP and TCP traffic
in two queues per switch port based on the DSCP: one queue
soley intended for DCTCP traffic and one for non-DCTCP traffic.
For the DCTCP queue, there's the marking threshold K as
explained in commit
e3118e8359bb ("net: tcp: add DCTCP congestion
control algorithm") for RED marking ECT(0) packets with CE.
For the non-DCTCP queue, there's f.e. a classic tail drop queue.
As already explained in
e3118e8359bb, running DCTCP at scale
when not marking SYN/SYN-ACK packets with ECT(0) has severe
consequences as for non-ECT(0) packets, traversing the RED
marking DCTCP queue will result in a severe reduction of
connection probability.
This is due to the DCTCP queue being dominated by ECT(0) traffic
and switches handle non-ECT traffic in the RED marking queue
after passing K as drops, where K is usually a low watermark
in order to leave enough tailroom for bursts. Splitting DCTCP
traffic among several queues (ECN and non-ECN queue) is being
considered a terrible idea in the network community as it
splits single flows across multiple network paths.
Therefore, commit
e3118e8359bb implements this on Linux as
ECT(0) marked traffic, as we argue that marking all packets
of a DCTCP flow is the only viable solution and also doesn't
speak against the draft.
However, recently, a DCTCP implementation for FreeBSD hit also
their mainline kernel [2]. In order to let them play well
together with Linux' DCTCP, we would need to loosen the
requirement that ECT(0) has to be asserted during the 3WHS as
not implemented in FreeBSD. This simplifies the ECN test and
lets DCTCP work together with FreeBSD.
Joint work with Daniel Borkmann.
[1] https://www.usenix.org/conference/nsdi15/technical-sessions/presentation/judd
[2] https://github.com/freebsd/freebsd/commit/
8ad879445281027858a7fa706d13e458095b595f
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Glenn Judd <glenn.judd@morganstanley.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 3 Feb 2015 02:46:57 +0000 (18:46 -0800)]
Merge branch 'net-timestamp'
Willem de Bruijn says:
====================
net-timestamp: blinding
Changes
(v2 -> v3)
- rebase only: v2 did not make it to patchwork / netdev
(v1 -> v2)
- fix capability check in patch 2
this could be moved into net/core/sock.c as sk_capable_nouser()
(rfc -> v1)
- dropped patch 4: timestamp batching
due to complexity, as discussed
- dropped patch 5: default mode
because it does not really cover all use cases, as discussed
- added documentation
- minor fix, see patch 2
Two issues were raised during recent timestamping discussions:
1. looping full packets on the error queue exposes packet headers
2. TCP timestamping with retransmissions generates many timestamps
This RFC patchset is an attempt at addressing both without breaking
legacy behavior.
Patch 1 reintroduces the "no payload" timestamp option, which loops
timestamps onto an empty skb. This reduces the pressure on SO_RCVBUF
from looping many timestamps. It does not reduce the number of recv()
calls needed to process them. The timestamp cookie mechanism developed
in http://patchwork.ozlabs.org/patch/427213/ did, but this is
considerably simpler.
Patch 2 then gives administrators the power to block all timestamp
requests that contain data by unprivileged users. I proposed this
earlier as a backward compatible workaround in the discussion of
net-timestamp: pull headers for SOCK_STREAM
http://patchwork.ozlabs.org/patch/414810/
Patch 3 only updates the txtimestamp example to test this option.
Verified that with option '-n', length is zero in all cases and
option '-I' (PKTINFO) stops working.
====================
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Fri, 30 Jan 2015 18:29:33 +0000 (13:29 -0500)]
net-timestamp: no-payload option in txtimestamp test
Demonstrate how SOF_TIMESTAMPING_OPT_TSONLY can be used and
test the implementation.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Fri, 30 Jan 2015 18:29:32 +0000 (13:29 -0500)]
net-timestamp: no-payload only sysctl
Tx timestamps are looped onto the error queue on top of an skb. This
mechanism leaks packet headers to processes unless the no-payload
options SOF_TIMESTAMPING_OPT_TSONLY is set.
Add a sysctl that optionally drops looped timestamp with data. This
only affects processes without CAP_NET_RAW.
The policy is checked when timestamps are generated in the stack.
It is possible for timestamps with data to be reported after the
sysctl is set, if these were queued internally earlier.
No vulnerability is immediately known that exploits knowledge
gleaned from packet headers, but it may still be preferable to allow
administrators to lock down this path at the cost of possible
breakage of legacy applications.
Signed-off-by: Willem de Bruijn <willemb@google.com>
----
Changes
(v1 -> v2)
- test socket CAP_NET_RAW instead of capable(CAP_NET_RAW)
(rfc -> v1)
- document the sysctl in Documentation/sysctl/net.txt
- fix access control race: read .._OPT_TSONLY only once,
use same value for permission check and skb generation.
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Fri, 30 Jan 2015 18:29:31 +0000 (13:29 -0500)]
net-timestamp: no-payload option
Add timestamping option SOF_TIMESTAMPING_OPT_TSONLY. For transmit
timestamps, this loops timestamps on top of empty packets.
Doing so reduces the pressure on SO_RCVBUF. Payload inspection and
cmsg reception (aside from timestamps) are no longer possible. This
works together with a follow on patch that allows administrators to
only allow tx timestamping if it does not loop payload or metadata.
Signed-off-by: Willem de Bruijn <willemb@google.com>
----
Changes (rfc -> v1)
- add documentation
- remove unnecessary skb->len test (thanks to Richard Cochran)
Signed-off-by: David S. Miller <davem@davemloft.net>
Johan Hedberg [Mon, 2 Feb 2015 11:23:42 +0000 (13:23 +0200)]
Bluetooth: Remove mgmt_rp_read_local_oob_ext_data struct
This extended return parameters struct conflicts with the new Read Local
OOB Extended Data command definition. To avoid the conflict simply
rename the old "extended" version to the normal one and update the code
appropriately to take into account the two possible response PDU sizes.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Marcel Holtmann [Mon, 2 Feb 2015 07:57:18 +0000 (23:57 -0800)]
Bluetooth: Set HCI_QUIRK_STRICT_DUPLICATE_FILTER for BTUSB_INTEL_NEW
The Intel Snowfield Peak Bluetooth controllers use a strict scanning
filter policy that filters based on Bluetooth device addresses and
not on RSSI.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Jakub Pawlowski [Mon, 2 Feb 2015 07:07:55 +0000 (23:07 -0800)]
Bluetooth: Add restarting to service discovery
When using LE_SCAN_FILTER_DUP_ENABLE, some controllers would send
advertising report from each LE device only once. That means that we
don't get any updates on RSSI value, and makes Service Discovery very
slow. This patch adds restarting scan when in Service Discovery, and
device with filtered uuid is found, but it's not in RSSI range to send
event yet. This way if device moves into range, we will quickly get RSSI
update.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Jakub Pawlowski [Mon, 2 Feb 2015 07:07:54 +0000 (23:07 -0800)]
Bluetooth: Add le_scan_restart work for LE scan restarting
Currently there is no way to restart le scan, and it's needed in
service scan method. The way it work: it disable, and then enable le
scan on controller.
During the restart, we must remember when the scan was started, and
it's duration, to later re-schedule the le_scan_disable work, that was
stopped during the stop scan phase.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
David Ahern [Fri, 30 Jan 2015 03:59:33 +0000 (20:59 -0700)]
net: rocker: Add support for retrieving port level statistics
Add support for retrieving port level statistics from device.
Hook is added for ethtool's stats functionality. For example,
$ ethtool -S eth3
NIC statistics:
rx_packets: 12
rx_bytes: 2790
rx_dropped: 0
rx_errors: 0
tx_packets: 8
tx_bytes: 728
tx_dropped: 0
tx_errors: 0
Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 2 Feb 2015 07:16:40 +0000 (23:16 -0800)]
Merge branch 'switchdev_offload_flags'
Roopa Prabhu says:
====================
switchdev offload flags
This patch series introduces new offload flags for switchdev.
Kernel network subsystems can use this flag to accelerate
network functions by offloading to hw.
I expect that there will be need for subsystem specific feature
flag in the future.
This patch series currently only addresses bridge driver link
attribute offloads to hardware.
Looking at the current state of bridge l2 offload in the kernel,
- flag 'self' is the way to directly manage the bridge device in hw via
the ndo_bridge_setlink/ndo_bridge_getlink calls
- flag 'master' is always used to manage the in kernel bridge devices
via the same ndo_bridge_setlink/ndo_bridge_getlink calls
Today these are used separately. The nic offloads use hwmode "vepa/veb" to go
directly to hw with the "self" flag.
At this point i am trying not to introduce any new user facing flags/attributes.
In the model where we want the kernel bridging to be accelerated with
hardware, we very much want the bridge driver to be involved.
In this proposal,
- The offload flag/bit helps switch asic drivers to indicate that they
accelerate the kernel networking objects/functions
- The user does not have to specify a new flag to do so. A bridge created with
switch asic ports will be accelerated if the switch driver supports it.
- The user can continue to directly manage l2 in nics (ixgbe) using the
existing hwmode/self flags
- It also does not stop users from using the 'self' flag to talk to the
switch asic driver directly
- Involving the bridge driver makes sure the add/del notifications to user
space go out after both kernel and hardware are programmed
(To selectively offload bridge port attributes,
example learning in hw only etc, we can introduce offload bits for
per bridge port flag attribute as in my previous patch
https://patchwork.ozlabs.org/patch/413211/. I have not included that in this
series)
v2
- try a different name for the offload flag/bit
- tries to solve the stacked netdev case by traversing the lowerdev
list to reach the switch port
v3 -
- Tested with bond as bridge port for the stacked device case.
Includes a bond_fix_features change to not ignore the
NETIF_F_HW_NETFUNC_OFFLOAD flag
- Some checkpatch fixes
v4 -
- rename flag to NETIF_F_HW_SWITCH_OFFLOAD
- add ndo_bridge_setlink/dellink handlers in bond and team drivers as
suggested by jiri.
- introduce default ndo_dflt_netdev_switch_port_bridge_setlink/dellink
handlers that masters can use to call offload api on lowerdevs.
====================
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Roopa Prabhu [Fri, 30 Jan 2015 06:40:17 +0000 (22:40 -0800)]
team: handle NETIF_F_HW_SWITCH_OFFLOAD flag and add ndo_bridge_setlink/dellink handlers
Currently ndo_bridge_setlink and ndo_bridge_dellink handlers point
to the default switchdev handlers
This follows my bonding driver changes.
I have only compile tested this patch. However similar
bonding code has been tested.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Fri, 30 Jan 2015 06:40:16 +0000 (22:40 -0800)]
bonding: handle NETIF_F_HW_SWITCH_OFFLOAD flag and add ndo_bridge_setlink/dellink handlers
We want bond to pick up the offload flag if any of its slaves have it.
NETIF_F_HW_SWITCH_OFFLOAD flag is added to the mask, so that
netdev_increment_features does not ignore it.
This also adds ndo_bridge_setlink and ndo_bridge_dellink handlers.
These currently point to the default handlers provided by the
switchdev api.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Fri, 30 Jan 2015 06:40:15 +0000 (22:40 -0800)]
rocker: set feature NETIF_F_HW_SWITCH_OFFLOAD
This patch sets the NETIF_F_HW_SWITCH_OFFLOAD feature flag on rocker ports
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Fri, 30 Jan 2015 06:40:14 +0000 (22:40 -0800)]
bridge: offload bridge port attributes to switch asic if feature flag set
This patch adds support to set/del bridge port attributes in hardware from
the bridge driver.
With this, when the user sends a bridge setlink message with no flags or
master flags set,
- the bridge driver ndo_bridge_setlink handler sets settings in the kernel
- calls the swicthdev api to propagate the attrs to the switchdev
hardware
You can still use the self flag to go to the switch hw or switch port
driver directly.
With this, it also makes sure a notification goes out only after the
attributes are set both in the kernel and hw.
The patch calls switchdev api only if BRIDGE_FLAGS_SELF is not set.
This is because the offload cases with BRIDGE_FLAGS_SELF are handled in
the caller (in rtnetlink.c).
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Fri, 30 Jan 2015 06:40:13 +0000 (22:40 -0800)]
swdevice: add new apis to set and del bridge port attributes
This patch adds two new api's netdev_switch_port_bridge_setlink
and netdev_switch_port_bridge_dellink to offload bridge port attributes
to switch port
(The names of the apis look odd with 'switch_port_bridge',
but am more inclined to change the prefix of the api to something else.
Will take any suggestions).
The api's look at the NETIF_F_HW_SWITCH_OFFLOAD feature flag to
pass bridge port attributes to the port device.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Fri, 30 Jan 2015 06:40:12 +0000 (22:40 -0800)]
bridge: add flags argument to ndo_bridge_setlink and ndo_bridge_dellink
bridge flags are needed inside ndo_bridge_setlink/dellink handlers to
avoid another call to parse IFLA_AF_SPEC inside these handlers
This is used later in this series
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Fri, 30 Jan 2015 06:40:11 +0000 (22:40 -0800)]
netdev: introduce new NETIF_F_HW_SWITCH_OFFLOAD feature flag for switch device offloads
This is a high level feature flag for all switch asic offloads
switch drivers set this flag on switch ports. Logical devices like
bridge, bonds, vxlans can inherit this flag from their slaves/ports.
The patch also adds the flag to NETIF_F_ONE_FOR_ALL, so that it gets
propagated to the upperdevices (bridges and bonds).
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sonic Zhang [Fri, 30 Jan 2015 05:49:32 +0000 (13:49 +0800)]
stmmac: DMA threshold mode or SF mode can be different among multiple device instance
- In tx_hard_error_bump_tc interrupt, tc should be bumped only when current
device instance is in DMA threshold mode. Check per device xstats.threshold
other than global tc.
- Set per device xstats.threshold to SF_DMA_MODE when current device
instance is set to SF mode.
v2-changes:
- fix ident style
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hariprasad Shenai [Fri, 30 Jan 2015 03:19:27 +0000 (08:49 +0530)]
cxgb4: Remove preprocessor check for CONFIG_CXGB4_DCB
In commit
dc9daab226aa ("cxgb4: Added support in debugfs to dump
sge_qinfo") a preprocessor check for CONFIG_CXGB4_DCB got added, which should
have been CONFIG_CHELSIO_T4_DCB. After adding the right preprocessor, build
fails due to missing function ethqset2pinfo. Fixing that as well.
V2: Updated description since the patch also fixes build failure
Reported-by: Paul Bolle <pebolle@tiscal.nl>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mohammad Jamal [Fri, 23 Jan 2015 13:55:27 +0000 (19:25 +0530)]
ieee802154: cc2520: Fix space before , coding style issue
This patch removes the warnings (space before , ) shown by
checkpatch.pl
Signed-off-by: Mohammad Jamal <md.jamalmohiuddin@gmail.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Mohammad Jamal [Fri, 23 Jan 2015 13:58:29 +0000 (19:28 +0530)]
ieee802154: cc2520: Replace shift operations by BIT macro
This patch replaces the shifting operations by BIT macro
Signed-off-by: Mohammad Jamal <md.jamalmohiuddin@gmail.com>
Acked-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
David S. Miller [Sun, 1 Feb 2015 20:33:31 +0000 (12:33 -0800)]
Merge branch 'hso-next'
Olivier Sobrie says:
====================
hso: fix some problems in the disconnect path
These patches attempt to fix some problems I observed when the hso
device is disconnected.
Several patches of this serie are fixing crashes or memleaks when a
hso device is disconnected.
This serie of patches is based on v3.18.
changes in v2:
- Last patch of the serie dropped since another patch fix the issue.
See http://marc.info/?l=linux-usb&m=
142186699418489 for more info.
- Added an extra patch avoiding name conflicts for the rfkill interface.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:22:03 +0000 (13:22 +0100)]
hso: fix rfkill name conflicts
By using only the usb interface number for the rfkill name, we might
have a name conflicts in case two similar hso devices are connected.
In this patch, the name of the hso rfkill interface embed the value
of a counter that is incremented each time a new rfkill interface is
added.
Suggested-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:22:02 +0000 (13:22 +0100)]
hso: add missing cancel_work_sync in disconnect()
For hso serial devices, two cancel_work_sync were missing in the
disconnect method.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:22:01 +0000 (13:22 +0100)]
hso: update serial_table in usb disconnect method
The serial_table is used to map the minor number of the usb serial device
to its associated context. The table is updated in the probe method and
in hso_serial_ref_free() which is called either from the tty cleanup
method or from the usb disconnect method.
This patch ensures that the serial_table is updated in the disconnect
method and no more from the cleanup method to avoid the following
potential race condition.
- hso_disconnect() is called for usb interface "x". Because the serial
port was open and because the cleanup method of the tty_port hasn't
been called yet, hso_serial_ref_free() is not run.
- hso_probe() is called and fails for a new hso serial usb interface
"y". The function hso_free_interface() is called and iterates
over the element of serial_table to find the device associated to
the usb interface context.
If the usb interface context of usb interface "y" has been created
at the same place as for usb interface "x", then the cleanup
functions are called for usb interfaces "x" and "y" and
hso_serial_ref_free() is called for both interfaces.
- release_tty() is called for serial port linked to usb interface "x"
and possibly crash because the tty_port structure contained in the
hso_device structure has been freed.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:22:00 +0000 (13:22 +0100)]
hso: move tty_unregister outside hso_serial_common_free()
The function hso_serial_common_free() is called either by the cleanup
method of the tty or by the usb disconnect method.
In the former case, the usb_disconnect() has been already called
and the sysfs group associated to the device has been removed.
By calling tty_unregister directly from the usb_disconnect() method,
we avoid a warning due to the removal of the sysfs group of the usb
device.
Example of warning:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 778 at fs/sysfs/group.c:225 sysfs_remove_group+0x50/0x94()
sysfs group
c0645a88 not found for kobject 'ttyHS5'
Modules linked in:
CPU: 0 PID: 778 Comm: kworker/0:3 Tainted: G W 3.18.0+ #105
Workqueue: events release_one_tty
[<
c000dfe4>] (unwind_backtrace) from [<
c000c014>] (show_stack+0x14/0x1c)
[<
c000c014>] (show_stack) from [<
c0016bac>] (warn_slowpath_common+0x5c/0x7c)
[<
c0016bac>] (warn_slowpath_common) from [<
c0016c60>] (warn_slowpath_fmt+0x30/0x40)
[<
c0016c60>] (warn_slowpath_fmt) from [<
c00ddd14>] (sysfs_remove_group+0x50/0x94)
[<
c00ddd14>] (sysfs_remove_group) from [<
c0221e44>] (device_del+0x30/0x190)
[<
c0221e44>] (device_del) from [<
c0221fb0>] (device_unregister+0xc/0x18)
[<
c0221fb0>] (device_unregister) from [<
c0221fec>] (device_destroy+0x30/0x3c)
[<
c0221fec>] (device_destroy) from [<
c01fe1dc>] (tty_unregister_device+0x2c/0x5c)
[<
c01fe1dc>] (tty_unregister_device) from [<
c029a428>] (hso_serial_common_free+0x2c/0x88)
[<
c029a428>] (hso_serial_common_free) from [<
c029a4c0>] (hso_serial_ref_free+0x3c/0xb8)
[<
c029a4c0>] (hso_serial_ref_free) from [<
c01ff430>] (release_one_tty+0x30/0x84)
[<
c01ff430>] (release_one_tty) from [<
c00271d4>] (process_one_work+0x21c/0x3c8)
[<
c00271d4>] (process_one_work) from [<
c0027758>] (worker_thread+0x3d8/0x560)
[<
c0027758>] (worker_thread) from [<
c002be4c>] (kthread+0xc0/0xcc)
[<
c002be4c>] (kthread) from [<
c0009630>] (ret_from_fork+0x14/0x24)
---[ end trace
cb88537fdc8fa208 ]---
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:21:59 +0000 (13:21 +0100)]
hso: replace reset_device work by usb_queue_reset_device()
There is no need for a dedicated reset work in the hso driver since
there is already a reset work foreseen in usb_interface that does
the same.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:21:58 +0000 (13:21 +0100)]
hso: rename hso_dev into serial in hso_free_interface()
In other functions of the driver, variables of type "struct hso_serial"
are denoted by "serial" and variables of type "struct hso_device" are
denoted by "hso_dev". This patch makes the hso_free_interface()
consistent with these notations.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:21:57 +0000 (13:21 +0100)]
hso: fix small indentation error
Simply remove the useless extra tab.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:21:56 +0000 (13:21 +0100)]
hso: fix memory leak in hso_create_rfkill()
When the rfkill interface was created, a buffer containing the name
of the rfkill node was allocated. This buffer was never freed when the
device disappears.
To fix the problem, we put the name given to rfkill_alloc() in
the hso_net structure.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:21:55 +0000 (13:21 +0100)]
hso: fix memory leak when device disconnects
In the disconnect path, tx_buffer should freed like tx_data to avoid
a memory leak when the device disconnects.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:21:54 +0000 (13:21 +0100)]
hso: fix crash when device disappears while serial port is open
When the device disappear, the function hso_disconnect() is called to
perform cleanup. In the cleanup function, hso_free_interface() calls
tty_port_tty_hangup() in view of scheduling a work to hang up the tty if
needed. If the port was not open then hso_serial_ref_free() is called
directly to cleanup everything. Otherwise, hso_serial_ref_free() is called
when the last fd associated to the port is closed.
For each open port, tty_release() will call the close method,
hso_serial_close(), which drops the last kref and call
hso_serial_ref_free() which unregisters, destroys the tty port
and finally frees the structure in which the tty_port structure
is included. Later, in tty_release(), more precisely when release_tty()
is called, the tty_port previously freed is accessed to cancel
the tty buf workqueue and it leads to a crash.
In view of avoiding this crash, we add a cleanup method that is called
at the end of the hangup process and we drop the last kref in this
function when all the ports have been closed, when tty_port is no
more needed and when it is safe to free the structure containing the
tty_port structure.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Sobrie [Fri, 30 Jan 2015 12:21:53 +0000 (13:21 +0100)]
hso: remove useless header file timer.h
No timer related function is used in this driver.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marcel Holtmann [Sat, 31 Jan 2015 21:20:27 +0000 (13:20 -0800)]
Bluetooth: Fix OOB data present for BR/EDR Secure Connections Only mode
When using Secure Connections Only mode, then only P-256 OOB data is
valid and should be provided. In case userspace provides P-192 and P-256
OOB data, then the P-192 values will be set to zero. However the present
value of the IO capability exchange still mentioned that both values
would be available. Fix this by telling the controller clearly that only
the P-256 OOB data is present.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sun, 1 Feb 2015 05:01:07 +0000 (21:01 -0800)]
Bluetooth: Expose remote OOB information as debugfs entry
For debugging purposes it is good to know which OOB data is actually
currently loaded for each controller. So expose that list via debugfs.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sun, 1 Feb 2015 03:54:39 +0000 (19:54 -0800)]
Bluetooth: Expose hardware error code as debugfs entry
When the Hardware Error event is send by the controller, the Bluetooth
core stores the error code. Expose it via debugfs so it can be retrieved
later on.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sat, 31 Jan 2015 23:12:06 +0000 (15:12 -0800)]
Bluetooth: Expose debug keys usage setting via debugfs
To allow easier debugging when debug keys are generated, provide debugfs
entry for checking the setting of debug keys usage.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sat, 31 Jan 2015 23:07:52 +0000 (15:07 -0800)]
Bluetooth: Track changes from HCI Write Simple Pairing Debug Mode command
When the HCI Write Simple Pairing Debug Mode command has been issued,
the result needs to be tracked and stored. The hdev->ssp_debug_mode
variable is already present, but was never updated when the mode in
the controller was actually changed.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sat, 31 Jan 2015 23:07:51 +0000 (15:07 -0800)]
Bluetooth: Expose Secure Simple Pairing debug mode setting in debugfs
The value of the ssp_debug_mode should be accessible via debugfs to be
able to determine if a BR/EDR controller generates debugs keys or not.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Eric Dumazet [Thu, 29 Jan 2015 23:58:09 +0000 (15:58 -0800)]
ipv4: icmp: use percpu allocation
Get rid of nr_cpu_ids and use modern percpu allocation.
Note that the sockets themselves are not yet allocated
using NUMA affinity.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Karicheri, Muralidharan [Thu, 29 Jan 2015 23:15:51 +0000 (18:15 -0500)]
drivers: net: cpsw: make cpsw_ale.c a module to allow re-use on Keystone
NetCP on Keystone has cpsw ale function similar to other TI SoCs
and this driver is re-used. To allow both ti cpsw and keystone netcp
to re-use the driver, convert the cpsw ale to a module and configure
it through Kconfig option CONFIG_TI_CPSW_ALE. Currently it is statically
linked to both TI CPSW and NetCP and this causes issues when the above
drivers are built as dynamic modules. This patch addresses this issue
While at it, fix the Makefile and code to build both netcp_core and
netcp_ethss as dynamic modules. This is needed to support arm allmodconfig.
This also requires exporting of API calls provided by netcp_core so that
both the above can be dynamic modules.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Kenneth Klette Jonassen [Thu, 29 Jan 2015 19:08:03 +0000 (20:08 +0100)]
tcp: use SACK RTTs for CC
Current behavior only passes RTTs from sequentially acked data to CC.
If sender gets a combined ACK for segment 1 and SACK for segment 3, then the
computed RTT for CC is the time between sending segment 1 and receiving SACK
for segment 3.
Pass the minimum computed RTT from any acked data to CC, i.e. time between
sending segment 3 and receiving SACK for segment 3.
Signed-off-by: Kenneth Klette Jonassen <kennetkl@ifi.uio.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Marcel Holtmann [Sat, 31 Jan 2015 08:37:02 +0000 (00:37 -0800)]
Bluetooth: Allow remote OOB data to only provide P-192 or P-256 values
In case the remote only provided P-192 or P-256 data for OOB pairing,
then make sure that the data value pointers are correctly set. That way
the core can provide correct information when remote OOB data present
information have to be communicated.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sat, 31 Jan 2015 08:15:52 +0000 (00:15 -0800)]
Bluetooth: Fix OOB data present value for SMP pairing
Before setting the OOB data present flag with SMP pairing, check the
newly introduced present tracking that actual OOB data values have
been provided. The existence of remote OOB data structure does not
actually mean that the correct data values are available.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sat, 31 Jan 2015 07:20:56 +0000 (23:20 -0800)]
Bluetooth: Fix OOB data present value for BR/EDR Secure Connections
When BR/EDR Secure Connections has been enabled, the OOB data present
value can take 2 additional values. The host has to clearly provide
details about if P-192 OOB data, P-256 OOB data or a combination of
P-192 and P-256 OOB data is present.
In case BR/EDR Secure Connections is not enabled or not supported,
then check that P-192 OOB data is actually present and return the
correct value based on that.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Marcel Holtmann [Sat, 31 Jan 2015 07:20:55 +0000 (23:20 -0800)]
Bluetooth: Store OOB data present value for each set of remote OOB data
Instead of doing complex calculation every time the OOB data is used,
just calculate the OOB data present value and store it with the OOB
data raw values.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Jakub Pawlowski [Sat, 31 Jan 2015 02:55:58 +0000 (18:55 -0800)]
Bluetooth: Set HCI_QUIRK_STRICT_DUPLICATE_FILTER for BTUSB_INTEL
The Bluetooth controllers from Intel use a strict scanning filter
policy that filters based on Bluetooth device addresses and not on
RSSI. So tell the core about this.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Nicholas Mc Guire [Thu, 29 Jan 2015 17:22:51 +0000 (18:22 +0100)]
irda: use msecs_to_jiffies for conversions
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 constructs by msecs_to_jiffies(var).
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: David S. Miller <davem@davemloft.net>