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Fixup the checksum for CHECKSUM_COMPLETE when pulling skbs on RX path.
Otherwise we get splats when tc mirred is used to redirect packets to ifb.
Before fix:
nic: hw csum failure
Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add RTL8211B suspend / resume callbacks.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch enables virtio_net to switch over to a VF datapath when STANDBY
feature is enabled and a VF netdev is present with the same MAC address.
It allows live migration of a VM with a direct attached VF without the need
to setup a bond/team between a VF and virtio net device in the guest.
It uses the API that is exported by the net_failover driver to create and
and destroy a master failover netdev. When STANDBY feature is enabled, an
additional netdev(failover netdev) is created that acts as a master device
and tracks the state of the 2 lower netdevs. The original virtio_net netdev
is marked as 'standby' netdev and a passthru device with the same MAC is
registered as 'primary' netdev.
The hypervisor needs to unplug the VF device from the guest on the source
host and reset the MAC filter of the VF to initiate failover of datapath
to virtio before starting the migration. After the migration is completed,
the destination hypervisor sets the MAC filter on the VF and plugs it back
to the guest to switch over to VF datapath.
This patch is based on the discussion initiated by Jesse on this thread.
https://marc.info/?l=linux-virtualization&m=151189725224231&w=2
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This feature bit can be used by hypervisor to indicate virtio_net device to
act as a standby for another device with the same MAC address.
VIRTIO_NET_F_STANDBY is defined as bit 62 as it is a device feature bit.
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The net_failover driver provides an automated failover mechanism via APIs
to create and destroy a failover master netdev and manages a primary and
standby slave netdevs that get registered via the generic failover
infrastructure.
The failover netdev acts a master device and controls 2 slave devices. The
original paravirtual interface gets registered as 'standby' slave netdev and
a passthru/vf device with the same MAC gets registered as 'primary' slave
netdev. Both 'standby' and 'failover' netdevs are associated with the same
'pci' device. The user accesses the network interface via 'failover' netdev.
The 'failover' netdev chooses 'primary' netdev as default for transmits when
it is available with link up and running.
This can be used by paravirtual drivers to enable an alternate low latency
datapath. It also enables hypervisor controlled live migration of a VM with
direct attached VF by failing over to the paravirtual datapath when the VF
is unplugged.
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the registration/notification framework supported by the generic
failover infrastructure.
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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SCTP sockets originated in a VRF can improve their performance if CRC32c
computation is delegated to underlying devices: update device features,
setting NETIF_F_SCTP_CRC. Iterating the following command in the topology
proposed with [1],
# ip vrf exec vrf-h2 netperf -H 192.0.2.1 -t SCTP_STREAM -- -m 10K
the measured throughput in Mbit/s improved from 2395 ± 1% to 2720 ± 1%.
[1] https://www.spinics.net/lists/netdev/msg486007.html
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some drivers, such as DWC EQOS on Tegra, need to perform operations that
can sleep under this lock (clk_set_rate() in tegra_eqos_fix_speed()) for
proper operation. Since there is no need for this lock to be a spinlock,
convert it to a mutex instead.
Fixes: e6ea2d16fc61 ("net: stmmac: dwc-qos: Add Tegra186 support")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tested-by: Bhadram Varka <vbhadram@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tx-timeout mostly happens due to some issue in the device. In such cases,
debug dump would be helpful for identifying the cause of the issue.
This patch adds support to spill debug data during the Tx timeout. Here
bnx2x_panic_dump() API is used instead of bnx2x_panic(), since we still
want to allow the Tx-timeout recovery a chance to succeed.
Changes from previous version:
-------------------------------
v2: Fixed a coding error.
Please consider applying this to "net-next".
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Update the driver version to 12.0.0.4
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The driver exits port setup after failing the lpfc_sli4_get_parameters
command (messages 0356, 2541, & 1412).
The older CNA adapters do not support the MBX command. In the past
the code was allowed to fail and continue on with initialization.
However a nvme change moved a closing bracket and now makes all
failures terminal.
Revise the logic so that terminal failure only occurs if the command
failed on the newer adapters. Additionally, if parameters are set
that require information from the command and the command failed,
the parameters are erroneous and port set up should fail even on
the older adapters.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The lancer G5 chip family fails the CQ create with 16k page size. The
hardware incorrectly reports it supports large page sizes when it is
actually limited to 4k pages.
A prior patch resolved this for the A0 chip revision only. This patch
excludes all revisions of the G5 asic from using large page sizes. As
knowing the actual chip revision is unnecessary, the now unused definitions
are removed
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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modprobe -r lpfc produces the following:
Call Trace:
__blk_mq_run_hw_queue+0xa2/0xb0
__blk_mq_delay_run_hw_queue+0x9d/0xb0
? blk_mq_hctx_has_pending+0x32/0x80
blk_mq_run_hw_queue+0x50/0xd0
blk_mq_sched_insert_request+0x110/0x1b0
blk_execute_rq_nowait+0x76/0x180
nvme_keep_alive_work+0x8a/0xd0 [nvme_core]
process_one_work+0x17f/0x440
worker_thread+0x126/0x3c0
? manage_workers.isra.24+0x2a0/0x2a0
kthread+0xd1/0xe0
? insert_kthread_work+0x40/0x40
ret_from_fork_nospec_begin+0x21/0x21
? insert_kthread_work+0x40/0x40
However, rmmod lpfc would run correctly.
When an nvme remoteport is unregistered with the host nvme transport, it
needs to set the remoteport->dev_loss_tmo value 0 to indicate an immediate
termination of device loss and prevent any further keep alives to that
rport. The driver was never setting dev_loss_tmo causing the nvme
transport to continue to send the keep alive.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Under large configurations, the driver would start to log message 6065 -
NVME out of buffers (exchanges).
The driver is using the ndlp cmd_qdepth value when determining the max
outstanding ios for an adapter. This value, by default, is set to 65536,
which exceeds the maximum exchange counts supported on an adapter. The ndlp
cmd_qdepth has no relevance and outstanding io count should be capped at
the max exchange count with IO requests beyond that level getting bounced
back with an EBUSY status so that they are retried by the block layer.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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MDS diagnostics fail because of frame count mismatch.
Unavailability of SGL is the trigger for this issue. If ELS SGL is not
available to process MDS frame, IOCB is put in FCP txq but not attempted to
post afterwards. So, driver stops processing incoming frames as it runs out
of IOCB. lpfc_drain_txq attempts to submit IOCBS that are queued in ELS
txq but MDS frames are posted to FCP WQ.
Attempt to submit IOCBs that are present in FCP txq when MDS loopback is
running.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When issuing a nexus reset for directly attached device, we want to ignore
the PHY down events so libsas will not deform and reform the port.
In the case that the attached SAS changes for the reset, libsas will deform
and form a port.
For scenario that the PHY does not come up after a timeout period, then
report the PHY down to libsas.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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It is an step of executing task to get free slot. If the step fails, we
will cleanup LLDD resources and should return failure to upper layer or
internal caller to abort task execution of this time.
But in the current code, the caller of get_free_slot() doesn't return
failure when get_free_slot() failed. This patch is to fix it.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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For v2 hw, STP link from target is rejected after host reset because of a
SoC bug. The STP reject will be terminated after we have sent IO from each
PHY of a port.
This is not an problem before, as we don't need to setup STP link from
target immediately after host reset. But now, it is. Because we want to
send soft-reset immediately after host reset.
In order to terminate STP reject quickly, this patch send ATA reset command
through each PHY of a port. Notes: ATA reset command don't need target's
response.
Besides, we do abort dev for each device before terminating STP reject.
This is a quirk of v2 hw.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch adds a force PHY function for internal ATA command for v2 hw.
Because there is an SoC bug in v2 hw, and need send an IO through each PHY
of a port to work around a bug which occurs after a controller reset.
This force PHY function will be used in the later patch.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In future scenarios we will want to use the TMF struct for more task types
than SSP.
As such, we can add struct hisi_sas_tmf_task directly into struct
hisi_sas_slot, and this will mean we can remove the TMF parameters from the
task prep functions.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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We may reset the controller in many scenarios, such as SCSI EH and HW
errors. There should be no IO which returns from target when SCSI EH is
active. But for other scenarios, there may be. It is not necessary to make
such IOs fail.
This patch adds an function of trying to wait for any commands, or IO, to
complete before host reset. If no more CQ returned from host controller in
100ms, we assume no more IO can return, and then stop waiting. We wait 5s
at most.
The HW has a register CQE_SEND_CNT to indicate the total number of CQs that
has been reported to driver. We can use this register and it is reliable to
resd this register in such scenarios that require host reset.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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After the controller is reset, it is possible that the disks attached still
have outstanding IO to complete.
Thus, when the PHYs come back up after controller reset, it is possible
that these IOs complete at some unknown point later.
We want to ensure that all IOs are complete after the controller reset so
that all associated IPTT and other resources can be recycled safely.
To achieve this, re-init the disks by TMF or softreset (in case of ATA
devices).
If the init fails - maybe because the device was removed or link has not
come up - then do not release the device resources, but rather rely on SCSI
EH to handle the timeout for these resources later on.
This patch also does some cleanup to hisi_sas_init_disk(), including
removing superfluous cases in the switch statement.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When a SCSI host is registered, the SCSI mid-layer takes a reference to a
module in Scsi_host.hostt.module. In doing this, we are prevented from
removing the driver module for the host in dangerous scenario, like when a
disk is mounted.
Currently there is only one scsi_host_template (sht) for all HW versions,
and this is the main.c module. So this means that we can possibly remove
the HW module in this dangerous scenario, as SCSI mid-layer is only
referencing the main.c module.
To fix this, create a sht per module, referencing that same module to
create the Scsi host.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When a disk is discovered, it may be in an error state, or there may be
residual commands remaining in the disk.
To ensure any disk is in good state after discovery, reset via TMF (for SAS
disk) or softreset (for a SATA disk).
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch implements LED feature of directly attached disk for v3 hw.
In fact, this hw has created an SGPIO component for LED feature, and we can
control LEDs just by internal registers.
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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To reduce possibility of hitting unknown SoC bugs and aid debugging and
test, change allocation mode of device id from last used device id instead
of lowest available index.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Currently we find the lowest available empty bit in the IPTT bitmap to
allocate the IPTT for a command.
To reduce possibility of hitting unknown SoC bugs and also aid in the
debugging of those same bugs, change the allocation mode.
The next allocation method is to use the next free slot adjacent to the
most recently allocated slot, in a round-robin fashion.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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There is much common code and functionality between the HW versions to set
the PHY linkrate.
As such, this patch factors out the common code into a generic function
hisi_sas_phy_set_linkrate().
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fix a typo in hisi_sas_task_prep().
Fixes: 7eee4b921822 ("scsi: hisi_sas: relocate smp sg map")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Trivial fix to spelling mistake in pr_err message text.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Trivial fix to spelling mistake in pm8001_printk message text; also I
believe NOT_UNSUPPORTED should probably be NOT_SUPPORTED. Also fix the
indent of the pm8001_printk statement.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Commit 505aa4b6a883 ("scsi: sd: Defer spinning up drive while SANITIZE is
in progress") may not be sufficient, especially if the SCSI SANITIZE
command is sent via the bsg or sg pass-throughs, since they don't use the
sd driver.
Add "Sanitize in progress" plus some other recent "... in progress"
additional sense codes into the scsi mid-level so they are treated in a
similar fashion to "Format in progress".
[mkp: checkpatch]
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Since an SRP remote port is attached as a child to shost->shost_gendev
and as the only child, the translation from the shost pointer into an
rport pointer must happen by looking up the shost child that is an
rport. This patch fixes the following KASAN complaint:
BUG: KASAN: slab-out-of-bounds in srp_timed_out+0x57/0x110 [scsi_transport_srp]
Read of size 4 at addr ffff880035d3fcc0 by task kworker/1:0H/19
CPU: 1 PID: 19 Comm: kworker/1:0H Not tainted 4.16.0-rc3-dbg+ #1
Workqueue: kblockd blk_mq_timeout_work
Call Trace:
dump_stack+0x85/0xc7
print_address_description+0x65/0x270
kasan_report+0x231/0x350
srp_timed_out+0x57/0x110 [scsi_transport_srp]
scsi_times_out+0xc7/0x3f0 [scsi_mod]
blk_mq_terminate_expired+0xc2/0x140
bt_iter+0xbc/0xd0
blk_mq_queue_tag_busy_iter+0x1c7/0x350
blk_mq_timeout_work+0x325/0x3f0
process_one_work+0x441/0xa50
worker_thread+0x76/0x6c0
kthread+0x1b2/0x1d0
ret_from_fork+0x24/0x30
Fixes: e68ca75200fe ("scsi_transport_srp: Reduce failover time")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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CineS2 V7(A) and Octopus CI S2 Pro/Advanced cards support faster TS speeds
on the card's contained stv0910 demodulator when their FPGA was updated
with a recent (>= 1.7, version number applies to all mentioned cards)
vendor firmware. Enable this faster TS speed on card port 0 (contained
demod) and parallel stv0910 connections when the card firmware is at least
1.7 or later.
Note: The mentioned cards and their demods are handled via the STV0910_PR
and STV0910_P tuner types. DuoFlex modules with such demodulators are
handled via the STV0910 (without suffix) types where such TS speed
increase doesn't technically make sense.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Tested-by: Helmut Auer <post@helmutauer.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add a tsspeed config option to struct stv0910_cfg which can be used by
users of the driver to set the (parallel) TS speed (higher speeds enable
support for higher bitrate transponders). If tsspeed isn't set in the
config, it'll default to a sane value.
This commit also updates the two consumers of the stv0910 driver (ngene
and ddbridge) to have a default tsspeed in their stv0910_cfg templates.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Tested-by: Richard Scobie <rascobie@slingshot.co.nz>
Tested-by: Helmut Auer <post@helmutauer.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Fixes two checkpatch warnings
WARNING: function definition argument 'xxx' should also have an identifier name
in the ddb_mci_attach() prototype definition. checkpatch keeps complaining
on the "int (**fn_set_input)" as it seems to have issues with the
ptr-to-ptr, though this probably needs fixing in checkpatch.
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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In stop(), an (unlikely) out-of-bounds write error can occur when setting
the demod_in_use element indexed by state->demod to zero, as state->demod
isn't checked for being in the range of the array size of demod_in_use, and
state->demod maybe carrying the magic 0xff (demod unused) value. Prevent
this by checking state->demod not exceeding the array size before setting
the element value. To make the code a bit easier to read, replace the magic
value and the number of array elements with defines, and use them at a few
more places.
Detected by CoverityScan, CID#1468550 ("Out-of-bounds write")
Thanks to Colin for reporting the problem and providing an initial patch.
Fixes: daeeb1319e6f ("media: ddbridge: initial support for MCI-based MaxSX8 cards")
Reported-by: Colin Ian King <colin.king@canonical.com>
Cc: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Since commit cb84343fced1 ("media: lirc: do not call close() or open() on
unregistered devices") rc_open() will return -ENODEV if rcdev->registered
is false. Ensure this is set before we register the input device and the
lirc device, else we have a short window where the neither the lirc or
input device can be opened.
Fixes: cb84343fced1 ("media: lirc: do not call close() or open() on unregistered devices")
Cc: stable@vger.kernel.org # v4.16+
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Doing writes when the device is disabled seems to be a NOOP.
For CIR device, we should enable it, initialize it, and then disable it
until it's opened. CIR_WAKE should always be enabled.
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Core rc keeps track of the users - let's use it to tweak the code and
use the common code path on suspend/resume.
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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It appears that we need to enable CIR device before attempting to touch
some of the registers. Previously, this was not a big issue, since we
were rarely seeing nvt_close() getting called.
Unfortunately, since commit cb84343fced1 ("media: lirc: do not call close()
or open() on unregistered devices") the initial open() during probe from
rc_setup_rx_device() is no longer successful, which means that userspace
clients will actually end up calling nvt_open()/nvt_close(). Since
nvt_open() is broken, the device doesn't seem to work as expected.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199597
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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media: uvcvideo: Support UVC 1.5 video probe & commit controls
The length of UVC 1.5 video control is 48, and it is 34 for UVC 1.1.
Change it to 48 for UVC 1.5 device, and the UVC 1.5 device can be
recognized.
More changes to the driver are needed for full UVC 1.5 compatibility.
However, at least the UVC 1.5 Realtek RTS5847/RTS5852 cameras have been
reported to work well.
[laurent.pinchart@ideasonboard.com: Factor out code to helper function, update size checks]
Cc: stable@vger.kernel.org
Signed-off-by: ming_qian <ming_qian@realsil.com.cn>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Ana Guerrero Lopez <ana.guerrero@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Kernel library has a common function to match user input from sysfs
against an array of strings. Thus, replace bch_read_string_list() by
__sysfs_match_string().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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There is couple of functions that are used exclusively in sysfs.c.
Move it to there and make them static.
Besides above, it will allow further clean up.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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There is couple of string arrays that are used exclusively in sysfs.c.
Move it to there and make them static.
Besides above, it will allow further clean up.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Currently bcache does not handle backing device failure, if backing
device is offline and disconnected from system, its bcache device can still
be accessible. If the bcache device is in writeback mode, I/O requests even
can success if the requests hit on cache device. That is to say, when and
how bcache handles offline backing device is undefined.
This patch tries to handle backing device offline in a rather simple way,
- Add cached_dev->status_update_thread kernel thread to update backing
device status in every 1 second.
- Add cached_dev->offline_seconds to record how many seconds the backing
device is observed to be offline. If the backing device is offline for
BACKING_DEV_OFFLINE_TIMEOUT (30) seconds, set dc->io_disable to 1 and
call bcache_device_stop() to stop the bache device which linked to the
offline backing device.
Now if a backing device is offline for BACKING_DEV_OFFLINE_TIMEOUT seconds,
its bcache device will be removed, then user space application writing on
it will get error immediately, and handler the device failure in time.
This patch is quite simple, does not handle more complicated situations.
Once the bcache device is stopped, users need to recovery the backing
device, register and attach it manually.
Changelog:
v3: call wait_for_kthread_stop() before exits kernel thread.
v2: remove "bcache: " prefix when calling pr_warn().
v1: initial version.
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cc: Michael Lyle <mlyle@lyle.org>
Cc: Junhui Tang <tang.junhui@zte.com.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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kref_init initializes the reference count to 1, not 0. This additional
reference is never released since the conversion to reference counters.
As a result, uvc_delete is not called anymore when UVC cameras are
disconnected.
Fix this by adding an additional kref_put in uvc_disconnect and in the
probe error path. This also allows to remove the temporary additional
reference in uvc_unregister_video.
Fixes: 9d15cd958c17 ("media: uvcvideo: Convert from using an atomic variable to a reference count")
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The 50Hz and 60Hz power line frequency settings disable short (1/120s
and 1/100s) exposure times for banding filter (causing overexposed
image near lamps). No flicker setting enables them (when banding
filter is disabled and they're not used).
Seems that the logic is just the wrong way around.
(This bug came from the Windows driver.)
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Power line frequency settings for OV7648 sensor contain autogain
and exposure commands, affecting unrelated controls. Remove them.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The ZS0211 internal autogain causes pumping and flickering with OV7648
sensor on 0ac8:307b webcam.
Implement OV7648 autogain and exposure control and use that instead.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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