This patch fixes skb allocation, as lack of space for ev might push skb
tail beyond its end.
Also introduce eir_precalc_len() that can be used instead of magic
numbers for similar eir operations on skb.
Fixes: cf1bce1de7 ("Bluetooth: mgmt: Make use of mgmt_send_event_skb in MGMT_EV_DEVICE_FOUND")
Fixes: e96741437e ("Bluetooth: mgmt: Make use of mgmt_send_event_skb in MGMT_EV_DEVICE_CONNECTED")
Signed-off-by: Angela Czubak <acz@semihalf.com>
Signed-off-by: Marek Maslanka <mm@semihalf.com>
Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
clang static analysis reports this problem
hci_sync.c:4428:2: warning: Undefined or garbage value
returned to caller
return err;
^~~~~~~~~~
If there are no connections this function is a noop but
err is never set and a false error could be reported.
Return 0 as other hci_* functions do.
Fixes: 182ee45da0 ("Bluetooth: hci_sync: Rework hci_suspend_notifier")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Since the starting value in the for loop is greater than or equal to 1,
the restriction is CAS_FLAG_REG_PLUS is in the file cassini.h is
defined as 0x1 by macro, and the for loop and if condition is not
satisfied, so the code here is redundant.
Clean up the following smatch warning:
drivers/net/ethernet/sun/cassini.c:3513 cas_start_dma() warn: we never
enter this loop.
drivers/net/ethernet/sun/cassini.c:1239 cas_init_rx_dma() warn: we never
enter this loop.
drivers/net/ethernet/sun/cassini.c:1247 cas_init_rx_dma() warn: we never
enter this loop.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simon Horman says:
====================
Add AF_XDP zero-copy support for NFP
Niklas Söderlund says:
This series adds AF_XDP zero-copy support for the NFP driver. The series
is based on previous work done by Jakub Kicinski.
Patch 1/5 and 2/5 prepares the driver for AF_XDP support by refactoring
functions that will act differently once AF_XDP is active or not making
the driver easier to read and by preparing some functions to be reused
outside the local file scope. Patch 3/5 and 4/5 prepares the driver for
dealing the UMEM while finally patch 5/5 adds AF_XDP support.
Based on work by Jakub Kicinski.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds zero-copy Rx and Tx support for AF_XDP sockets. It do so
by adding a separate NAPI poll function that is attached to a each
channel when the XSK socket is attached with XDP_SETUP_XSK_POOL, and
restored when the XSK socket is terminated, this is done per channel.
Support for XDP_TX is implemented and the XDP buffer can safely be moved
from the Rx to the Tx queue and correctly freed and returned to the XSK
pool once it's transmitted.
Note that when AF_XDP zero-copy is enabled, the XDP action XDP_PASS
will allocate a new buffer and copy the zero-copy frame prior
passing it to the kernel stack.
This patch is based on previous work by Jakub Kicinski.
Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation for adding AF_XDP support add a configuration check to
make sure the buffer size can not be set to a larger value then the XSK
socket chunk size.
Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Each data path needs an array of xsk pools to track if an xsk socket is
in use. Add this array and make sure it's handled correctly when the
data path is duplicated.
Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are some common functionality that can be reused in the upcoming
AF_XDP support. Expose those functions in the header. While at it mark
some arguments of nfp_net_rx_csum() as const.
Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Horatiu Vultur says:
====================
net: sparx5: Add PTP Hardware Clock support
Add support for PTP Hardware Clock (PHC) for sparx5.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement the function get_ts_info in ethtool_ops which is needed to get
the HW capabilities for timestamping.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When doing 2-step timestamping the HW will generate an interrupt when it
managed to timestamp a frame. It is the SW responsibility to read it
from the FIFO.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update both the extraction and injection to do timestamping of the
frames. The extraction is always doing the timestamping while for
injection is doing the timestamping only if it is configured.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement the ioctl callbacks SIOCSHWTSTAMP and SIOCGHWTSTAMP to allow
to configure the ports to enable/disable timestamping for TX. The RX
timestamping is always enabled. The HW is capable to run both 1-step
timestamping and 2-step timestamping.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sparx5 has 3 PHC. Enable each of them, for now all the
timestamping is happening on the first PHC.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for ptp interrupt. This interrupt is used when using 2-step
timestamping. For each timestamp that is added in a queue, an interrupt
is generated.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Extend dt-bindings for sparx5 with ptp interrupt. This is generated
when doing 2-step timestamping and the timestamp can be read from the
FIFO.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the ifh is not changed, it is fixed for each frame for each
port that is sent out. Move this on the stack because this ifh needs to
be change based on the frames that are send out. This is needed for PTP
frames.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Arun Ramadoss says:
====================
Add support for LAN937x T1 Phy Driver
LAN937x is a Multi-port 100Base-T1 Switch and it internally uses LAN87xx
T1 Phy. This series of patch update the initialization routine for the
LAN87xx phy and also add LAN937x part support. Added the T1 Phy
master-slave configuration through ethtool.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
To configure the T1 phy as master or slave using the ethtool -s <dev>
master-slave <forced-master/forced-slave>, the config_aneg and read
status functions are added.
Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@microchip.com>
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
LAN937x T1 switch is based on LAN87xx Phy, so reusing the init script of
the LAN87xx. There is a workaround in accessing the DSP bank register
for LAN937x Phy. Whenever there is a bank switch to DSP registers, then
we need a one dummy read access before proceeding to the actual register
access.
Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@microchip.com>
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The new initialization sequence is the improvement to the existing init
routine. Init routine does soft reset, run init script and set
Hw_init. Added the new access_smi_poll_timeout() for polling smi
bank write.
Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@microchip.com>
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Radoslaw Biernacki
Minghao Chi
Tom Rix
Changcheng Deng
Jiapeng Chong
David S. Miller
Niklas Söderlund
Jakub Kicinski
Horatiu Vultur
Arun Ramadoss