This adds device class, complete local name and short local name
to EIR data in Extended Controller Info as specified in docs.
Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

This command is used to retrieve the current state and basic
information of a controller. It is typically used right after
getting the response to the Read Controller Index List command
or an Index Added event (or its extended counterparts).

When any of the values in the EIR_Data field changes, the event
Extended Controller Information Changed will be used to inform
clients about the updated information.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Michał Narajowski <michal.narajowski@codecoup.pl>

Conwise CW6622 seems to have a problem with the stored link key
commands so just mark it as broken.

< HCI Command: Read Local Supported Features (0x04|0x0003) plen 0
> HCI Event: Command Complete (0x0e) plen 12
    Read Local Supported Features (0x04|0x0003) ncmd 1
    status 0x00
    Features: 0xff 0x3e 0x85 0x38 0x18 0x18 0x00 0x00
< HCI Command: Read Local Version Information (0x04|0x0001) plen 0
> HCI Event: Command Complete (0x0e) plen 12
    Read Local Version Information (0x04|0x0001) ncmd 1
    status 0x00
    HCI Version: 2.0 (0x3) HCI Revision: 0x1f4
    LMP Version: 2.0 (0x3) LMP Subversion: 0x1f4
    Manufacturer: CONWISE Technology Corporation Ltd (66)
...
< HCI Command: Read Local Supported Commands (0x04|0x0002) plen 0
> HCI Event: Command Complete (0x0e) plen 68
    Read Local Supported Commands (0x04|0x0002) ncmd 1
    status 0x00
    Commands: 7fffef03cedfffffffffff1ff20ff8ff3f
...
< HCI Command: Read Stored Link Key (0x03|0x000d) plen 7
    bdaddr 00:00:00:00:00:00 all 1
> HCI Event: Command Complete (0x0e) plen 8
    Read Stored Link Key (0x03|0x000d) ncmd 1
    status 0x11 max 0 num 0
    Error: Unsupported Feature or Parameter Value
Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

The workqueue "workqueue" queues multiple work items viz &qca->ws_awake_rx
&qca->ws_rx_vote_off, &qca->ws_awake_device, &qca->ws_tx_vote_off which
require strict execution ordering. Hence, an ordered dedicated workqueue
has been used to replace the deprecated create_singlethread_workqueue
instance.

WQ_MEM_RECLAIM has not been set since the driver is not being used on a
memory reclaim path.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

In case an unbound HCI raw socket is later on bound, ensure that the
monitor notification messages indicate a close and re-open. None of
the userspace tools use the socket this, but it is actually possible
to use an ioctl on an unbound socket and then later bind it.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

When opening and closing HCI raw sockets their main usage is for legacy
userspace. To track interaction with the modern mgmt interface, send
open and close monitoring messages for these action.

The HCI raw sockets is special since it supports unbound ioctl operation
and for that special case delay the notification message until at least
one ioctl has been executed. The difference between a bound and unbound
socket will be detailed by the fact the HCI index is present or not.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

The control open and close monitoring events require special channel
checks to ensure messages are only send when the right events happen.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

Assignment of the hci_pi(sk)->channel should be done early when binding
the HCI socket. This avoids confusion with the RAW channel that is used
for legacy access.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

Only when the cookie has been assigned, then send the open and close
monitor messages. Also if the socket is bound to a device, then include
the index into the message.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

Instead of keeping a version string around, use version and revision
numbers and then stringify them for use as module parameter.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

Instead of manually allocating cookie information each time, use helper
functions for generating and releasing cookies.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

The newly added bluetooth driver is based on the soc-specific support,
but lacks the obvious compile-time dependency on that:

drivers/bluetooth/btqcomsmd.o: In function `btqcomsmd_probe':
btqcomsmd.c:(.text.btqcomsmd_probe+0x40): undefined reference to `qcom_wcnss_open_channel'
btqcomsmd.c:(.text.btqcomsmd_probe+0x5c): undefined reference to `qcom_wcnss_open_channel'
Makefile:969: recipe for target 'vmlinux' failed

Fixes: 90c107dc8b2c ("Bluetooth: Introduce Qualcomm WCNSS SMD based HCI driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

In case of failure, the Set IO Capability command is suppose to return
command status and not command complete.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

The address information of the Get Clock Information return parameters
is copying from a different memory location. It uses &cmd->param while
it actually needs to be cmd->param.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

Instead of hiding everything behind a general managment events flag,
introduce indivdual flags that allow fine control over which events are
send to a given management channel.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

When an Advertising Instance is removed, the Advertising Removed event
shouldn't be sent to the same socket that issued the Remove
Advertising command (it gets a command complete event instead). The
mgmt_advertising_removed() function already has a parameter for
skipping a specific socket, but there was no code to propagate the
right value to this parameter. This patch fixes the issue by making
sure the intermediate hci_req_clear_adv_instance() function gets the
socket pointer.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

This adds support for tracing all management commands and events via the
monitor interface.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

This sends new notifications to the monitor support whenever a
management channel has been opened or closed. This allows tracing of
control channels really easily.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

The mgmt version information will be also needed for the control
changell tracing feature. This provides a helper to pack them.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

To further allow unique identification and tracking of control socket,
store cookie and comm information when binding the socket.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

The SOL_HCI level should be enforced when using socket options on the
HCI raw socket interface.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Device 0cf3:e009 is one of the QCA ROME family.

T:  Bus=01 Lev=01 Prnt=01 Port=07 Cnt=04 Dev#=  4 Spd=12  MxCh= 0
D:  Ver= 2.01 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cf3 ProdID=e009 Rev=00.01
C:  #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Commit 5177a838 ("Bluetooth: Add debugfs fields for hardware and
firmware info") introduced hci_set_hw_info() and hci_set_fw_info().
These functions use kvasprintf_const() but are not marked with a
__printf attribute.  Adding such an attribute helps detecting issues
related to printf-formatting at build time.
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

wait_on_bit_timeout() returns one of the following three values:
* 0 to indicate success.
* -EINTR to indicate that a signal has been received;
* -EAGAIN to indicate timeout;
Make the wait_on_bit_timeout() callers check for these values.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

The Qualcomm WCNSS chip provides two SMD channels to the BT core; one
for command and one for event packets. This driver exposes the two
channels as a hci device.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

This patch assigns the next free HCI device identifier to Bluetooth
devices based on the Qualcomm Shared Memory channels.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Acked-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Just because we don't support certain types of frames yet doesn't mean
we have to flood the message log with warnings about "invalid" frames.
Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Acked-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

This patch removes handling to remove short address for a neigbour entry
if RS/RA/NS/NA doesn't contain a short address. If these messages
doesn't has any short address option, the existing short address from
ndisc cache will be used. The current behaviour will set that the
neigbour doesn't has a short address anymore.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

This patch sets the net namespace when creating SoftMAC interfaces. This
is important if the namespace at phy layer was switched before.
Currently we losing interfaces in some namespace and it's not possible
to recover that.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Instead of just having a LED trigger for power on a specific controller,
this adds the LED trigger "bluetooth-power" that combines the power
states of all controllers into a single trigger. This simplifies the
trigger selection and also supports multiple controllers per host
system via a single LED.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

The led_trigger field in hci_dev should be conditional based on if
CONFIG_BT_LEDS is set or not.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

Merge tag 'rxrpc-rewrite-20160917-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
rxrpc: Tracepoint addition and improvement

Here is a set of patches that add some more tracepoints and improve a couple
of existing ones.  New additions include:

 (1) Connection refcount tracking.

 (2) Client connection state machine tracking.

 (3) Tx and Rx packet lifecycle.

 (4) ACK reception and transmission.

 (5) recvmsg processing.

Updates include:

 (1) Print the symbolic packet name in the Rx packet tracepoint.

 (2) Additional call refcount trace events.

 (3) Improvements to sk_buff tracking with AF_RXRPC.

In addition:

 (1) Config option to inject packet loss during both transmission and
     reception.

 (2) Removal of some printks.

This series needs to be applied on top of the previously posted fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Merge tag 'rxrpc-rewrite-20160917-1' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
rxrpc: Fixes & miscellany

Here are some more AF_RXRPC fix patches with a couple of miscellaneous
changes also.  Fixes include:

 (1) Make RxRPC IPv6 support conditional on IPv6 being available.

 (2) Move the condition check in rxrpc_locate_data() into the caller and
     check the error return.

 (3) Fix the detection of the last received packet in recvmsg.

 (4) Account calls that need acceptance and clean up any unaccepted ones if
     the socket gets closed.

 (5) Fix the cleanup of client connections.

 (6) Fix the soft-ACK parsing and the retransmission of packets based on
     those ACKs.

 (7) Suppress transmission of an ACK when there's no pending ACK to
     transmit because another thread stole it.

And some miscellany:

 (8) Whitespace removal.

 (9) Switch-value consistency in rxrpc_send_call_packet().

(10) Fix the basic transmission packet size to allow for spur-of-the-moment
     jumbo DATA packet production.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Florian Westphal says:

====================
sched: convert queues to single-linked list

During Netfilter Workshop 2016 Eric Dumazet pointed out that qdisc
schedulers use doubly-linked lists, even though single-linked list
would be enough.

The double-linked skb lists incur one extra write on enqueue/dequeue
operations (to change ->prev pointer of next list elem).

This series converts qdiscs to single-linked version, listhead
maintains pointers to first (for dequeue) and last skb (for enqueue).

Most qdiscs don't queue at all and instead use a leaf qdisc (typically
pfifo_fast) so only a few schedulers needed changes.

I briefly tested netem and htb and they seemed fine.

UDP_STREAM netperf with 64 byte packets via veth+pfifo_fast shows
a small (~2%) improvement.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

This change replaces sk_buff_head struct in Qdiscs with new qdisc_skb_head.

Its similar to the skb_buff_head api, but does not use skb->prev pointers.

Qdiscs will commonly enqueue at the tail of a list and dequeue at head.
While skb_buff_head works fine for this, enqueue/dequeue needs to also
adjust the prev pointer of next element.

The ->prev pointer is not required for qdiscs so we can just leave
it undefined and avoid one cacheline write access for en/dequeue.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

After previous patch these functions are identical.
Replace __skb_dequeue in qdiscs with __qdisc_dequeue_head.

Next patch will then make __qdisc_dequeue_head handle
single-linked list instead of strcut sk_buff_head argument.

Doesn't change generated code.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

Moves qdisc stat accouting to qdisc_dequeue_head.

The only direct caller of the __qdisc_dequeue_head version open-codes
this now.

This allows us to later use __qdisc_dequeue_head as a replacement
of __skb_dequeue() (which operates on sk_buff_head list).
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

A followup change will replace the sk_buff_head in the qdisc
struct with a slightly different list.

Use of the sk_buff_head helpers will thus cause compiler
warnings.

Open-code these accesses in an extra change to ease review.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>