When mac80211 abandons an association attempt, it may free
all the data structures, but inform cfg80211 and userspace
about it only by sending the deauth frame it received, in
which case cfg80211 has no link to the BSS struct that was
used and will not cfg80211_unhold_bss() it.
Fix this by providing a way to inform cfg80211 of this with
the BSS entry passed, so that it can clean up properly, and
use this ability in the appropriate places in mac80211.
This isn't ideal: some code is more or less duplicated and
tracing is missing. However, it's a fairly small change and
it's thus easier to backport - cleanups can come later.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
NL80211_ATTR_MAC was used to set both the specific BSSID to be scanned
and the random MAC address to be used when privacy is enabled. When both
the features are enabled, both the BSSID and the local MAC address were
getting same value causing Probe Request frames to go with unintended
DA. Hence, this has been fixed by using a different NL80211_ATTR_BSSID
attribute to set the specific BSSID (which was the more recent addition
in cfg80211) for a scan.
Backwards compatibility with old userspace software is maintained to
some extent by allowing NL80211_ATTR_MAC to be used to set the specific
BSSID when scanning without enabling random MAC address use.
Scanning with random source MAC address was introduced by commit
ad2b26abc1 ("cfg80211: allow drivers to support random MAC addresses
for scan") and the issue was introduced with the addition of the second
user for the same attribute in commit 818965d391 ("cfg80211: Allow a
scan request for a specific BSSID").
Fixes: 818965d391 ("cfg80211: Allow a scan request for a specific BSSID")
Signed-off-by: Vamsi Krishna <vamsin@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Arend inadvertently inverted the logic while converting to
wdev_running(), fix that.
Fixes: 73c7da3dae ("cfg80211: add generic helper to check interface is running")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Andrew Lunn says:
====================
Fixes for the MV88e6xxx interrupt code
The interrupt code was never tested with a board who's probing
resulted in an -EPROBE_DEFFERED. So the clean up paths never got
tested. I now do have -EPROBE_DEFFERED, and things break badly during
cleanup. These are the fixes.
This is fixing code in net-next.
v2:
Fix typo pointed out by David Miller
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Freeing interrupts requires switch register access to mask the
interrupts. Hence we must hold the register mutex.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is not possible to use devm_request_threaded_irq() because we have
two stacked interrupt controllers in one device. The lower interrupt
controller cannot be removed until the upper is fully removed. This
happens too late with the devm API, resulting in error messages about
removing a domain while there is still an active interrupt. Swap to
using request_threaded_irq() and manage the release of the interrupt
manually.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
On error, remask the interrupts, release all maps, and remove the
domain. This cannot be done using the mv88e6xxx_g1_irq_free() because
some of these actions are not idempotent.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the g1 interrupt free code such that is masks any further
interrupts, and then releases the interrupt.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Trying to remove an IRQ domain that was not created results in an
Opps. Add the necessary checks that the irqs were created before
freeing them.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
1) cast to "int" is unnecessary:
u8 will be promoted to int before decrementing,
small positive numbers fit into "int", so their values won't be changed
during promotion.
Once everything is int including loop counters, signedness doesn't
matter: 32-bit operations will stay 32-bit operations.
But! Someone tried to make this loop smart by making everything of
the same type apparently in an attempt to optimise it.
Do the optimization, just differently.
Do the cast where it matters. :^)
2) frag size is unsigned entity and sum of fragments sizes is also
unsigned.
Make everything unsigned, leave no MOVSX instruction behind.
add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-4 (-4)
function old new delta
skb_cow_data 835 834 -1
ip_do_fragment 2549 2548 -1
ip6_fragment 3130 3128 -2
Total: Before=154865032, After=154865028, chg -0.00%
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Length of a netlink attribute may be u16 but lengths of basic attributes
are much smaller, so small we can save 16 bytes of .rodata and pocket
change inside .text.
16-bit is worse on x86-64 than 8-bit because of operand size override prefix.
add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-19 (-19)
function old new delta
validate_nla 418 417 -1
nla_policy_len 66 64 -2
nla_attr_minlen 32 16 -16
Total: Before=154865051, After=154865032, chg -0.00%
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
size_t is way too much for an integer not exceeding 64.
Space savings: 10 bytes!
add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-10 (-10)
function old new delta
napi_consume_skb 165 163 -2
__kfree_skb_flush 56 53 -3
__kfree_skb_defer 97 92 -5
Total: Before=154865639, After=154865629, chg -0.00%
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- 6 patches adding functionality to detect a WiFi interface under
other virtual interfaces, like VLANs. They introduce a cache for
the detected the WiFi configuration to avoid RTNL locking in
critical sections. Patches have been prepared by Marek Lindner
and Sven Eckelmann
- Enable automatic module loading for genl requests, by Sven Eckelmann
- Fix a potential race condition on interface removal. This is not
happening very often in practice, but requires bigger changes to fix,
so we are sending this to net-next. By Linus Luessing
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Merge tag 'batadv-next-for-davem-20161119' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
This feature patchset includes the following changes:
- 6 patches adding functionality to detect a WiFi interface under
other virtual interfaces, like VLANs. They introduce a cache for
the detected the WiFi configuration to avoid RTNL locking in
critical sections. Patches have been prepared by Marek Lindner
and Sven Eckelmann
- Enable automatic module loading for genl requests, by Sven Eckelmann
- Fix a potential race condition on interface removal. This is not
happening very often in practice, but requires bigger changes to fix,
so we are sending this to net-next. By Linus Luessing
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove static function __packet_rcv_vnet(), which only called
virtio_net_hdr_from_skb() and BUG()ged out if an error code was
returned. Instead, call virtio_net_hdr_from_skb() from the former
call sites of __packet_rcv_vnet() and actually use the error handling
code that is already there.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the common virtio_net_hdr_to_skb() instead of open coding it.
Other call sites were changed by commit fd2a0437dc, but this one was
missed, maybe because it is split in two parts of the source code.
Interim comparisons of 'vnet_hdr->gso_type' still work as both the
vnet_hdr and skb notion of gso_type is zero when there is no gso.
Fixes: fd2a0437dc ("virtio_net: introduce virtio_net_hdr_{from,to}_skb")
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
virtio_net_hdr_from_skb() clears the memory for the header, so there
is no point for the callers to do the same.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
No point storing the return value of virtio_net_hdr_to_skb() or
virtio_net_hdr_from_skb() to a variable when the value is used only
once as a boolean in an immediately following if statement.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allocate resources dynamically for Upper layer driver's (ULD) like
cxgbit, iw_cxgb4, cxgb4i and chcr. The resources allocated include Tx
queues which are allocated when ULD register with cxgb4 driver and freed
while un-registering. The Tx queues which are shared by ULD shall be
allocated by first registering driver and un-allocated by last
unregistering driver.
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We obviously intended a bitwise AND here, not a logical one.
Fixes: 8c978d0592 ("liquidio CN23XX: Mailbox support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Relocate mdix code to phy driver to be called at config_init().
Signed-off-by: Woojung Huh <woojung.huh@microchip.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: Enable COMPILE_TEST for Marvell & Freescale drivers
This patch series allows building the Freescale and Marvell Ethernet network
drivers with COMPILE_TEST.
Changes in v4:
- add proper HAS_DMA to fix build errors on m32r
- provide an inline stub for mvebu_mbus_get_dram_win_info
- added an additional patch to fix build errors with mv88e6xxx on m32r
Changes in v3:
- reorder patches to avoid introducing a build warning between commits
Changes in v2:
- rename register define clash when building for i386 (spotted by LKP)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Some architectures may not define IRQ_DOMAIN (like m32r), fixes
undefined references to IRQ_DOMAIN functions.
Fixes: dc30c35be7 ("net: dsa: mv88e6xxx: Implement interrupt support.")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All Marvell Ethernet drivers actually build fine with COMPILE_TEST with
a few warnings. We need to add a few HAS_DMA dependencies to fix linking
failures on problematic architectures like m32r.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation for allowing CONFIG_MVNETA_BM to build with COMPILE_TEST,
provide an inline stub for mvebu_mbus_get_dram_win_info().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are only a handful of Freescale Ethernet drivers that don't
actually build with COMPILE_TEST:
* FEC, for which we would need to define a default register layout if no
supported architecture is defined
* UCC_GETH which depends on PowerPC cpm.h header (which could be moved
to a generic location)
* GIANFAR needs to depend on HAS_DMA to fix linking failures on some
architectures (like m32r)
We need to fix an unmet dependency to get there though:
warning: (FSL_XGMAC_MDIO) selects OF_MDIO which has unmet direct
dependencies (OF && PHYLIB)
which would result in CONFIG_OF_MDIO=[ym] without CONFIG_OF to be set.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
FS is a global symbol used by the x86 32-bit architecture, fixes builds
re-definitions:
>> drivers/net/ethernet/freescale/gianfar_ptp.c:75:0: warning: "FS"
>> redefined
#define FS (1<<28) /* FIPER start indication */
In file included from arch/x86/include/uapi/asm/ptrace.h:5:0,
from arch/x86/include/asm/ptrace.h:6,
from arch/x86/include/asm/math_emu.h:4,
from arch/x86/include/asm/processor.h:11,
from include/linux/mutex.h:19,
from include/linux/kernfs.h:13,
from include/linux/sysfs.h:15,
from include/linux/kobject.h:21,
from include/linux/device.h:17,
from
drivers/net/ethernet/freescale/gianfar_ptp.c:23:
arch/x86/include/uapi/asm/ptrace-abi.h:15:0: note: this is the
location of the previous definition
#define FS 9
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update the connection type enumeration for backplane mode and return
an error when there is a mismatch between the mode and the connection
type.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allan W. Nielsen says:
====================
Adding PHY-Tunables and downshift support
(This is a re-post of the v3 patch set with a new cover letter - I was not
aware that the cover letters was used a commit comments in merge commits).
This series add support for PHY tunables, and uses this facility to
configure downshifting. The downshifting mechanism is implemented for MSCC
phys.
This series tries to address the comments provided back in mid October when
this feature was posted along with fast-link-failure. Fast-link-failure has
been separated out, but we would like to pick continue on that if/when we
agree on how the phy-tunables and downshifting should be done.
The proposed generic interface is similar to
ETHTOOL_GTUNABLE/ETHTOOL_STUNABLE, it uses the same type
(ethtool_tunable/tunable_type_id) but a new enum (phy_tunable_id) is added
to reflect the PHY tunable.
The implementation just call the newly added function pointers in
get_tunable/set_tunable phy_device structure.
To configure downshifting, the ethtool_tunable structure is used. 'id' must
be set to 'ETHTOOL_PHY_DOWNSHIFT', 'type_id' must be set to
'ETHTOOL_TUNABLE_U8' and 'data' value configure the amount of downshift
re-tries.
If configured to DOWNSHIFT_DEV_DISABLE, then downshift is disabled If
configured to DOWNSHIFT_DEV_DEFAULT_COUNT, then it is up to the device to
choose a device-specific re-try count.
Tested on Beaglebone Black with VSC 8531 PHY.
Change set:
v0:
- Link Speed downshift and Fast Link failure-2 features coded by using
Device tree.
v1:
- Split the Downshift and FLF2 features in different set of patches.
- Removed DT access and implemented IOCTL access suggested by Andrew.
- Added function pointers in get_tunable/set_tunable phy_device structure
v2:
- Added trace message with a hist is printed when downshifting clould not
be eanbled with the requested count
- (ethtool) Syntax is changed from "--set-phy-tunable downshift on|off|%d"
to "--set-phy-tunable [downshift on|off [count N]]" - as requested by
Andrew.
v3:
- Fixed Spelling in "net: phy: Add downshift get/set support in Microsemi
PHYs driver"
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Implements the phy tunable function pointers and implement downshift
functionality for MSCC PHYs.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adding validation support for the ETHTOOL_PHY_DOWNSHIFT. Functional
implementation needs to be done in the individual PHY drivers.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For operation in cabling environments that are incompatible with
1000BASE-T, PHY device may provide an automatic link speed downshift
operation. When enabled, the device automatically changes its 1000BASE-T
auto-negotiation to the next slower speed after a configured number of
failed attempts at 1000BASE-T. This feature is useful in setting up in
networks using older cable installations that include only pairs A and B,
and not pairs C and D.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adding get_tunable/set_tunable function pointer to the phy_driver
structure, and uses these function pointers to implement the
ETHTOOL_PHY_GTUNABLE/ETHTOOL_PHY_STUNABLE ioctls.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Defines a generic API to get/set phy tunables. The API is using the
existing ethtool_tunable/tunable_type_id types which is already being used
for mac level tunables.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Saeed Mahameed says:
====================
Mellanox 100G mlx5 update 2016-11-15
This series contains four humble mlx5 features.
From Gal,
- Add the support for PCIe statistics and expose them in ethtool
From Huy,
- Add the support for port module events reporting and statistics
- Add the support for driver version setting into FW (for display purposes only)
From Mohamad,
- Extended the command interface cache flexibility
This series was generated against commit
6a02f5eb6a ("Merge branch 'mlxsw-i2c")
V2:
- Changed plain "unsigned" to "unsigned int"
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch exposes two groups of PCIe counters:
- Performance counters.
- Timers and states counters.
Queried with ethtool -S <devname>.
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the needed infrastructure for future use of MPCNT register.
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If driver_version capability bit is enabled, set driver version
to firmware after the init HCA command, for display purposes.
Example of driver version: "Linux,mlx5_core,3.0-1"
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add driver_version capability bit is enabled, and set driver
version command in mlx5_ifc firmware header. The only purpose
of this command is to store a driver version/OS string in FW
to be reported and displayed in various management systems,
such as IPMI/BMC.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add port module event counters to ethtool -S command
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For each asynchronous port module event:
1. print with ratelimit to the dmesg log
2. increment the corresponding event counter
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add hardware structures and constants definitions needed for module
events support.
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add more cache command size sets and more entries for each set based on
the current commands set different sizes and commands frequency.
Fixes: e126ba97db ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Edward Cree says:
====================
sfc: Firmware-Assisted TSO version 2
The firmware on 8000 series SFC NICs supports a new TSO API ("FATSOv2"), and
7000 series NICs will also support this in an imminent release. This series
adds driver support for this TSO implementation.
The series also removes SWTSO, as it's now equivalent to GSO. This does not
actually remove very much code, because SWTSO was grotesquely intertwingled
with FATSOv1, which will also be removed once 7000 series supports FATSOv2.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It gives no advantage over GSO now that xmit_more exists. If we find
ourselves unable to handle a TSO skb (because our TXQ doesn't have a
TSOv2 context and the NIC doesn't support TSOv1), hand it back to GSO.
Also do that if the TSO handler fails with EINVAL for any other reason.
As Falcon-architecture NICs don't support any firmware-assisted TSO,
they no longer advertise TSO feature flags at all.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If we fail to init the TXQ because of insufficient TSOv2 contexts,
try again with TSOv2 disabled.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for FATSOv2 to the driver. FATSOv2 offloads far more of the task
of TCP segmentation to the firmware, such that we now just pass a single
super-packet to the NIC. This means TSO has a great deal in common with a
normal DMA transmit, apart from adding a couple of option descriptors.
NIC-specific checks have been moved off the fast path and in to
initialisation where possible.
This also moves FATSOv1/SWTSO to a new file (tx_tso.c). The end of transmit
and some error handling is now outside TSO, since it is common with other
code.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johannes Berg