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Some of the tun_debug() statements only inform us about entering
a function which can be easily achieved with ftrace or kprobe. As
tun_debug() is no-op unless TUN_DEBUG is set which requires editing the
source and recompiling, setting up ftrace or kprobe is easier. Drop these
debug statements.
Also drop the tun_debug() statement informing about SIOCSIFHWADDR ioctl.
We can monitor these through rtnetlink and it makes little sense to log
address changes through ioctl but not changes through rtnetlink. Moreover,
this tun_debug() is called even if the actual address change fails which
makes it even less useful.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
This macro is no-op unless TUN_DEBUG is defined (which requires editing and
recompiling the source) and only does something if variable debug is 2 but
that variable is zero initialized and never set to anything else. Moreover,
the only use of the macro informs about entering function tun_chr_open()
which can be easily achieved using ftrace or kprobe.
Drop DBG1() macro, its only use and global variable debug.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
The comment above tun_flow_save_rps_rxhash() starts with "/**" which
makes it look like kerneldoc comment and results in warnings when
building with W=1. Fix the format to make it look like a normal comment.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jacob Keller says:
====================
PCI: Implement function to read Device Serial Number
Several drivers read the Device Serial Number from the PCIe extended
configuration space. Each of these drivers implements a similar approach to
finding the position and then extracting the 8 bytes of data.
Implement a new helper function, pci_get_dsn, which can be used to extract
this data into an 8 byte array.
Modify the bnxt_en, qedf, ice, ixgbe and nfp drivers to use this new
function.
The intent for this is to reduce duplicate code across the various drivers,
and make it easier to write future code that wants to read the DSN. In
particular the ice driver will be using the DSN as its serial number when
implementing the DEVLINK_CMD_INFO_GET.
The new implementation in v2 significantly simplifies some of the callers
which just want to print the value out in MSB order. By returning things as
a u64 in CPU Endian order, the "%016llX" printf format specifier can be used
to correctly format the value.
Per patch changes since v1
PCI: Introduce pci_get_dsn
* Update commit message based on feedback from Bjorn Helgaas
* Modify the function to return a u64 (zero on no capability)
* This new implementation ensures that the first dword is the lower 32
bits and the second dword is the upper 32 bits.
bnxt_en: Use pci_get_dsn()
* Use the u64 return value from pci_get_dsn()
* Copy it into the dsn[] array by using put_unaligned_le64
* Fix a pre-existing typo in the netdev_info error message
scsi: qedf: Use pci_get_dsn()
* Use the u64 return value from pci_get_dsn()
* simplify the snprintf to use "%016llX"
* remove the unused 'i' variable
ice: Use pci_get_dsn()
* Use the u64 return value from pci_get_dsn()
* simplify the snprintf to use "%016llX"
ixgbe: Use pci_get_dsn()
* Use the u64 return value from pci_get_dsn()
* simplify the snprintf to use "%016llX"
nfp: Use pci_get_dsn()
* Added in v2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the newly added pci_get_dsn() function for obtaining the 64-bit
Device Serial Number in the nfp6000_read_serial and
nfp_6000_get_interface functions.
pci_get_dsn() reports the Device Serial number as a u64 value created by
combining two pci_read_config_dword functions. The lower 16 bits
represent the device interface value, and the next 48 bits represent the
serial value. Use put_unaligned_be32 and put_unaligned_be16 to convert
the serial value portion into a Big Endian formatted serial u8 array.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().
The original code used a simple for-loop to read the bytes in order into
a buffer one byte at a time.
The pci_get_dsn() function returns the DSN as a u64, correctly ordering
the upper and lower 32 bit dwords. Simplify the display code by using
%016llX to display the u64 DSN.
This should have equivalent behavior on both Little and Big Endian
systems. The bus will have correctly ordered the dwords in the CPU
endian format, while pci_get_dsn() will correctly order the lower and
higher dwords into a u64.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().
The pci_get_dsn() function will perform two pci_read_config_dword calls
to read the lower and upper config dwords. It bitwise ORs them into
a u64 value. Instead of using put_unaligned_le32 to convert the value to
LE32 format, just use the %016llX printf specifier. This will print the
u64 correct, putting the most significant byte of the value first. Since
pci_get_dsn() correctly orders the two dwords into a u64, this should
produce equivalent results in less code.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().
The original code used a for-loop that looped over each of the 8 bytes
and copied them into a temporary buffer. pci_get_dsn() uses two calls to
pci_read_config_dword, and correctly bitwise ORs them into a u64. Thus,
we can simplify the snprintf significantly using %016llX on a u64 value.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().
Use of put_unaligned_le64 should be correct. pci_get_dsn() will perform
two pci_read_config_dword calls. The first dword will be placed in the
first 32 bits of the u64, while the second dword will be placed in the
upper 32 bits of the u64.
On Little Endian systems, the least significant byte comes first, which
will be the least significant byte of the first dword, followed by the
least significant byte of the second dword. Since the _le32 variations
do not perform byte swapping, we will correctly copy the dwords into the
dsn[] array in the same order as before.
On Big Endian systems, the most significant byte of the second dword
will come first. put_unaligned_le64 will perform a CPU_TO_LE64, which
will swap things correctly before copying. This should also end up with
the correct bytes in the dsn[] array.
While at it, fix a small typo in the netdev_info error message when the
DSN cannot be read.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Several device drivers read their Device Serial Number from the PCIe
extended config space.
Introduce a new helper function, pci_get_dsn(). This function reads the
eight bytes of the DSN and returns them as a u64. If the capability does not
exist for the device, the function returns 0.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We already have a function called page_offset(), and this macro
is unused, so just delete it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a PTP clock driver called ptp_vmw, for guests running on VMware ESXi
hypervisor. The driver attaches to a VMware virtual device called
"precision clock" that provides a mechanism for querying host system time.
Similar to existing virtual PTP clock drivers (e.g. ptp_kvm), ptp_vmw
utilizes the kernel's PTP hardware clock API to implement a clock device
that can be used as a reference in Chrony for synchronizing guest time with
host.
The driver is only applicable to x86 guests running in VMware virtual
machines with precision clock virtual device present. It uses a VMware
specific hypercall mechanism to read time from the device.
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Vivek Thampi <vithampi@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
First set of patches for v5.7. Lots of mt76 patches as they missed the
v5.6 deadline and hence they were postponed to the next version.
Otherwise nothing special standing out.
mt76
Major changes:
* dual-band concurrent support for MT7615
* fixes for rx path race conditions
* coverage class support for MT7615
* beacon fixes for USB devices
* MT7615 LED support
* set_antenna support for MT7615
* tracing improvements
* preparation for supporting new USB devices
* tx power fixes
brcmfmac
* support BRCM 4364 found in MacBook Pro 15,2
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Merge tag 'wireless-drivers-next-2020-03-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for v5.7
First set of patches for v5.7. Lots of mt76 patches as they missed the
v5.6 deadline and hence they were postponed to the next version.
Otherwise nothing special standing out.
mt76
Major changes:
* dual-band concurrent support for MT7615
* fixes for rx path race conditions
* coverage class support for MT7615
* beacon fixes for USB devices
* MT7615 LED support
* set_antenna support for MT7615
* tracing improvements
* preparation for supporting new USB devices
* tx power fixes
brcmfmac
* support BRCM 4364 found in MacBook Pro 15,2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
in this function,‘ret’ is always assigned,so this's definition
'ret = 0' make no sense.
Signed-off-by: tangbin <tangbin@cmss.chinamobile.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel says:
====================
mlxsw: Offload FIFO
Petr says:
If an ETS or PRIO band contains an offloaded qdisc, it is possible to
obtain offloaded counters for that band. However, some of the bands will
likely simply contain the default invisible FIFO qdisc, which does not
present the counters.
To remedy this situation, make FIFO offloadable, and offload it by mlxsw
when below PRIO and ETS for the sole purpose of providing counters for the
bands that do not include other qdiscs.
- In patch #1, FIFO is extended to support offloading.
- Patches #2 and #3 restructure bits of mlxsw to facilitate
the offload logic.
- Patch #4 then implements the offload itself.
- Patch #5 changes the ETS selftest to use the new counters.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the SW-datapath ETS selftests use "ip link" stats to obtain the
number of packets that went through a given band. mlxsw then uses ethtool
per-priority counters.
Instead, change both to use qdiscs. In SW datapath this is the obvious
choice, and now that mlxsw offloads FIFO, this should work on the offloaded
datapath as well. This has the effect of verifying that the FIFO offload
works.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are two peculiarities about offloading FIFO:
- sometimes the qdisc has an unspecified handle (it is "invisible")
- it may be created before the qdisc that it will be a child of
These features make the offload a bit more tricky. The approach chosen in
this patch is to make note of all the FIFOs that needed to be rejected
because their parents were not known. Later when the parent is created,
they are offloaded
FIFO is only offloaded for its counters, queue length is ignored.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PRIO and ETS will need to check the value of qdisc handle in their
handlers. Add it to the callback and propagate through.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to have a tidy structure where to put information related to Qdisc
offloads, introduce a new structure. Move there the two existing pieces of
data: root_qdisc and tclass_qdiscs. Embed them directly, because there's no
reason to go through pointer anymore. Convert users, update init/fini
functions.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Invoke ndo_setup_tc() as appropriate to signal init / replacement,
destroying and dumping of pFIFO / bFIFO Qdisc.
A lot of the FIFO logic is used for pFIFO_head_drop as well, but that's a
semantically very different Qdisc that isn't really in the same boat as
pFIFO / bFIFO. Split some of the functions to keep the Qdisc intact.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski says:
====================
ethtool: consolidate parameter checking for irq coalescing
This set aims to simplify and unify the unsupported irq
coalescing parameter handling.
First patch adds a bitmask which drivers should fill in
in their ethtool_ops structs to declare which parameters
they support. Core will then ensure that driver callback
won't see any parameter outside of that set.
This allows us to save some LoC and make sure all drivers
respond the same to unsupported parameters.
If any parameter driver does not support is set to a value
other than 0 core will return -EINVAL. In the future we can
reject any present but unsupported netlink attribute, without
assuming 0 means unset. We can also add some prints or extack,
perhaps a'la Intel's current code.
I started converting the drivers alphabetically but then
realized that for the first set it's probably best to
address a representative mix of actively developed drivers.
According to my unreliable math there are roughly 69 drivers
in the tree which support some form of interrupt coalescing
settings via ethtool. Of these roughly 17 reject parameters
they don't support.
I hope drivers which ignore the parameters don't care, and
won't care about the slight change in behavior. Once all
drivers are converted we can make the checking mandatory.
I've only tested the e1000e and virtio patches, the rest builds.
v2: fix up ice and virtio conversions
v3: (patch 1)
- move the (temporary) check if driver defines types
earlier (Michal)
- rename used_types -> nonzero_params, and
coalesce_types -> supported_coalesce_params (Alex)
- use EOPNOTSUPP instead of EINVAL (Andrew, Michal)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
As a side effect of these changes the error code for
unsupported params changes from EINVAL to EOPNOTSUPP.
v2: correctly handle rx-frames (and adjust the commit msg)
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver did not previously reject unsupported parameters.
v3: adjust commit message for new member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver did not previously reject unsupported parameters.
v3: adjust commit message for new member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver did not previously reject unsupported parameters.
v3: adjust commit message for new member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
As a side effect of these changes the info message about
the bad parameter will no longer be printed. We also
always reject the tx_coalesce_usecs_high param, even
if the target queue pair does not have a TX queue.
Error code changes from EINVAL to EOPNOTSUPP.
v2: allow adaptive TX
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
No functional changes.
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
As a side effect of these changes the error code for
unsupported params changes from EINVAL to EOPNOTSUPP.
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
No functional changes.
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
No functional changes.
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
The error code changes from EINVAL to EOPNOTSUPP.
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver correctly rejects all unsupported parameters.
We are only losing the error print.
v3: adjust commit message for new error code and member name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linux supports 22 different interrupt coalescing parameters.
No driver implements them all. Some drivers just ignore the
ones they don't support, while others have to carry a long
list of checks to reject unsupported settings.
To simplify the drivers add the ability to specify inside
ethtool_ops which parameters are supported and let the core
reject attempts to set any other one.
This commit makes the mechanism an opt-in, only drivers which
set ethtool_opts->coalesce_types to a non-zero value will have
the checks enforced.
The same mask is used for global and per queue settings.
v3: - move the (temporary) check if driver defines types
earlier (Michal)
- rename used_types -> nonzero_params, and
coalesce_types -> supported_coalesce_params (Alex)
- use EOPNOTSUPP instead of EINVAL (Andrew, Michal)
Leaving the long series of ifs for now, it seems nice to
be able to grep for the field and flag names. This will
probably have to be revisited once netlink support lands.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the commit e0a4b99773 ("hsr: use upper/lower device infrastructure"),
dev_get() was removed but dev_put() in the error path wasn't removed.
So, if creating hsr interface command is failed, the reference counter leak
of lower interface would occur.
Test commands:
ip link add dummy0 type dummy
ip link add ipvlan0 link dummy0 type ipvlan mode l2
ip link add ipvlan1 link dummy0 type ipvlan mode l2
ip link add hsr0 type hsr slave1 ipvlan0 slave2 ipvlan1
ip link del ipvlan0
Result:
[ 633.271992][ T1280] unregister_netdevice: waiting for ipvlan0 to become free. Usage count = -1
Fixes: e0a4b99773 ("hsr: use upper/lower device infrastructure")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Taehee Yoo says:
====================
net: rmnet: several code cleanup for rmnet module
This patchset is to cleanup rmnet module code.
1. The first patch is to add module alias
rmnet module can not be loaded automatically because there is no
alias name.
2. The second patch is to add extack error message code.
When rmnet netlink command fails, it doesn't print any error message.
So, users couldn't know the exact reason.
In order to tell the exact reason to the user, the extack error message
is used in this patch.
3. The third patch is to use GFP_KERNEL instead of GFP_ATOMIC.
In the sleepable context, GFP_KERNEL can be used.
So, in this patch, GFP_KERNEL is used instead of GFP_ATOMIC.
Change log:
- v1->v2: change error message in the second patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
In the current code, rmnet_register_real_device() and rmnet_newlink()
are using GFP_ATOMIC.
But, these functions are allowed to sleep.
So, GFP_KERNEL can be used.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When rmnet netlink command fails, it doesn't print any error message.
So, users couldn't know the exact reason.
In order to tell the exact reason to the user, the extack error message
is used in this patch.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the current rmnet code, there is no module alias.
So, RTNL couldn't load rmnet module automatically.
Test commands:
ip link add dummy0 type dummy
modprobe -rv rmnet
ip link add rmnet0 link dummy0 type rmnet mux_id 1
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Expose raw packet pacing APIs to be used by DEVX based applications.
The existing code was refactored to have a single flow with the new raw
APIs.
The new raw APIs considered the input of 'pp_rate_limit_context', uid,
'dedicated', upon looking for an existing entry.
This raw mode enables future device specification data in the raw
context without changing the existing logic and code.
The ability to ask for a dedicated entry gives control for application
to allocate entries according to its needs.
A dedicated entry may not be used by some other process and it also
enables the process spreading its resources to some different entries
for use different hardware resources as part of enforcing the rate.
The counter per entry was changed to be u64 to prevent any option to
overflow.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Russell King says:
====================
marvell10g tunable and power saving support
This patch series adds support for:
- mdix configuration (auto, mdi, mdix)
- energy detect power down (edpd)
- placing in edpd mode at probe
for both the 88x3310 and 88x2110 PHYs.
Antione, could you test this for the 88x2110 PHY please?
v3: fix return code in get_tunable/set_tunable
v2: fix comments from Antione.
====================
Tested-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Place the 88x3310 into powersaving mode when probing, which saves 600mW
per PHY. For both PHYs on the Macchiatobin double-shot, this saves
about 10% of the board idle power.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for the energy detect power down tunable, which saves
around 600mW when the link is down. The 88x3310 supports off, rx-only
and NLP every second. Enable EDPD by default for 88x3310.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for controlling the MDI-X state of the PHY.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit says:
====================
PCI: Add and use constant PCI_STATUS_ERROR_BITS and helper pci_status_get_and_clear_errors
Several drivers have own definitions for this constant, so move it
to the PCI core. In addition in multiple places the following code
sequence is used:
1. Read PCI_STATUS
2. Mask out non-error bits
3. Action based on set error bits
4. Write back set error bits to clear them
As this is a repeated pattern, add a helper to the PCI core.
Most affected drivers are network drivers. But as it's about core
PCI functionality, I suppose the series should go through the PCI
tree.
v2:
- fix formal issue with cover letter
v3:
- fix dumb typo in patch 7
v4:
- add patches 1-3
- move new constant PCI_STATUS_ERROR_BITS to include/linux/pci.h
- small improvements in commit messages
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Use new helper pci_status_get_and_clear_errors() to simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use new constant PCI_STATUS_ERROR_BITS to simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use new PCI core constant PCI_STATUS_ERROR_BITS to simplify the code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
