The current logic suffers from a slow response time to disable user DB
usage, and also fails to avoid DB FIFO drops under heavy load. This commit
fixes these deficiencies and makes the avoidance logic more optimal.
This is done by more efficiently notifying the ULDs of potential DB
problems, and implements a smoother flow control algorithm in iw_cxgb4,
which is the ULD that puts the most load on the DB fifo.
Design:
cxgb4:
Direct ULD callback from the DB FULL/DROP interrupt handler. This allows
the ULD to stop doing user DB writes as quickly as possible.
While user DB usage is disabled, the LLD will accumulate DB write events
for its queues. Then once DB usage is reenabled, a single DB write is
done for each queue with its accumulated write count. This reduces the
load put on the DB fifo when reenabling.
iw_cxgb4:
Instead of marking each qp to indicate DB writes are disabled, we create
a device-global status page that each user process maps. This allows
iw_cxgb4 to only set this single bit to disable all DB writes for all
user QPs vs traversing the idr of all the active QPs. If the libcxgb4
doesn't support this, then we fall back to the old approach of marking
each QP. Thus we allow the new driver to work with an older libcxgb4.
When the LLD upcalls iw_cxgb4 indicating DB FULL, we disable all DB writes
via the status page and transition the DB state to STOPPED. As user
processes see that DB writes are disabled, they call into iw_cxgb4
to submit their DB write events. Since the DB state is in STOPPED,
the QP trying to write gets enqueued on a new DB "flow control" list.
As subsequent DB writes are submitted for this flow controlled QP, the
amount of writes are accumulated for each QP on the flow control list.
So all the user QPs that are actively ringing the DB get put on this
list and the number of writes they request are accumulated.
When the LLD upcalls iw_cxgb4 indicating DB EMPTY, which is in a workq
context, we change the DB state to FLOW_CONTROL, and begin resuming all
the QPs that are on the flow control list. This logic runs on until
the flow control list is empty or we exit FLOW_CONTROL mode (due to
a DB DROP upcall, for example). QPs are removed from this list, and
their accumulated DB write counts written to the DB FIFO. Sets of QPs,
called chunks in the code, are removed at one time. The chunk size is 64.
So 64 QPs are resumed at a time, and before the next chunk is resumed, the
logic waits (blocks) for the DB FIFO to drain. This prevents resuming to
quickly and overflowing the FIFO. Once the flow control list is empty,
the db state transitions back to NORMAL and user QPs are again allowed
to write directly to the user DB register.
The algorithm is designed such that if the DB write load is high enough,
then all the DB writes get submitted by the kernel using this flow
controlled approach to avoid DB drops. As the load lightens though, we
resume to normal DB writes directly by user applications.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Based on original work by Anand Priyadarshee <anandp@chelsio.com>.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the bh safe variant with the hard irq safe variant.
We need a hard irq safe variant to deal with netpoll transmitting
packets from hard irq context, and we need it in most if not all of
the places using the bh safe variant.
Except on 32bit uni-processor the code is exactly the same so don't
bother with a bh variant, just have a hard irq safe variant that
everyone can use.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Conflicts:
drivers/net/usb/r8152.c
drivers/net/xen-netback/netback.c
Both the r8152 and netback conflicts were simple overlapping
changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Veaceslav Falico says:
====================
bonding: use correct ether type for alb
There have been reports that, while using the ETH_P_LOOP ether type
(0x0060), the ether type is treated as its packet length.
To avoid that and to not break already existing apps - add new ether type
ETH_P_LOOPBACK that contains the correct id - 0x9000.
====================
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Currently it's using the wrong ETH_P_LOOP type, which is sometimes treated
as packet length instead of ether type (because it's 0x0060).
Use the new ETH_P_LOOPBACK type.
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Per IEEE 802.3*, the correct packet type for loopback 0x9000. There's
already one ETH_P_LOOP 0x0060, which has been there for ages, however it's
plainly wrong as anything that small is considered a length field.
We can't remove it because legacy, so add a new type which corresponds to
the correct id.
http://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml
CC: "David S. Miller" <davem@davemloft.net>
CC: Stefan Richter <stefanr@s5r6.in-berlin.de>
CC: Simon Wunderlich <sw@simonwunderlich.de>
CC: Neil Jerram <Neil.Jerram@metaswitch.com>
CC: Simon Horman <horms@verge.net.au>
CC: Arvid Brodin <Arvid.Brodin@xdin.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates
This series contains updates to igb, i40e and i40evf.
I provide a code comment fix which David Miller noticed in the last
series of patches I submitted.
Shannon provides a patch to cleanup the NAPI structs when deleting the
netdev.
Anjali provides several patches for i40e, first fixes a bug in the update
filter logic which was causing a kernel panic. Then provides a fix to
rename an error bit to correctly indicate the error. Adds a definition
for a new state variable to keep track of features automatically disabled
due to hardware resource limitations versus user enforced feature disabled.
Anjali provides a patch to add code to handle when there is a filter
programming error due to a full table, which also resolves a previous
compile warning about an unused "*pf" variable introduced in the last i40e
series patch submission.
Jesse provides three i40e patches to cleanup strings to make more
consistent and to align with other Intel drivers.
Akeem cleans up a misleading function header comment for i40e.
Mitch provides a fix for i40e/i40evf to use the correctly reported number
of MSI-X vectors in the PF an VF. Then provides a patch to use
dma_set_mask_and_coherent() which was introduced in v3.13 and simplifies
the DMA mapping code a bit.
v2:
- dropped the 2 ixgbe patches from Emil based on feedback from David Miller,
where the 2 fixes should be handled in the net core to fix all drivers
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Phoebe Buckheister says:
====================
ieee802154: fix endianness and header handling
This patch set enforces network byte order on all internal operations and
fields of the 802.15.4 stack and adds a general representation of 802.15.4
headers with operations to create and parse those headers. This reduces code
duplication in the current stack and also allows for upper layers to read
headers of packets they have just received; it is also necessary for 802.15.4
link layer security, which requires header mangling.
Changes since v1:
* fixed lowpan packet rx after reassembly. Control blocks were used to
retrieve source/dest addresses, but the CB is clobbered by reassembly.
Instead, parse the header anew in lowpan.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Have mac802154 header_ops.create fail with -EMSGSIZE if the length
passed will be too large to fit a frame. Since 6lowpan will ensure that
no packet payload will be too large, pass a length of 0 there. 802.15.4
dgram sockets will also return -EMSGSIZE on payloads larger than the
device MTU instead of -EINVAL.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fragmentation and reassembly information for 6lowpan is independent from
the 802.15.4 stack and used only by the 6lowpan reassembly process. Move
the ieee802154_frag_info struct to a private are, it needn't be in the
802.15.4 skb control block.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change all internal uses of ieee802154_addr_sa to ieee802154_addr,
except for those instances that communicate directly with userspace.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the operations on 802.15.4 header structs introduced in a previous
patch to create and parse all headers in the mac802154 stack. This patch
reduces code duplication between different parts of the mac802154 stack
that needed information from headers, and also fixes a few bugs that
seem to have gone unnoticed until now:
* 802.15.4 dgram sockets would return a slightly incorrect value for
the SIOCINQ ioctl
* mac802154 would not drop frames with the "security enabled" bit set,
even though it does not support security, in violation of the
standard
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch provides a set of structures to represent 802.15.4 MAC
headers, and a set of operations to push/pull/peek these structs from
skbs. We cannot simply pointer-cast the skb MAC header pointer to these
structs, because 802.15.4 headers are wildly variable - depending on the
first three bytes, virtually all other fields of the header may be
present or not, and be present with different lengths.
The new header creation/parsing routines also support 802.15.4 security
headers, which are currently not supported by the mac802154
implementation of the protocol.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Enable sparse warnings about endianness, replace the remaining fields
regarding network operations without explicit endianness annotations
with such that are annotated, and propagate this through the entire
stack.
Uses of ieee802154_addr_sa are not changed yet, this patch is only
concerned with all other fields (such as address filters, operation
parameters and the likes).
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a replacement ieee802154_addr struct with proper endianness on
fields. Short address fields are stored as __le16 as on the network,
extended (EUI64) addresses are __le64 as opposed to the u8[8] format
used previously. This disconnect with the netdev address, which is
stored as big-endian u8[8], is intentional.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The struct as currently defined uses host byte order for some fields,
and most big endian/EUI display byte order for other fields. Inside the
stack, endianness should ideally match network byte order where possible
to minimize the number of byteswaps done in critical paths, but this
patch does not address this; it is only preparatory.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull x86 fixes from Peter Anvin:
"Two x86 fixes: Suresh's eager FPU fix, and a fix to the NUMA quirk for
AMD northbridges.
This only includes Suresh's fix patch, not the "mostly a cleanup"
patch which had __init issues"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/amd/numa: Fix northbridge quirk to assign correct NUMA node
x86, fpu: Check tsk_used_math() in kernel_fpu_end() for eager FPU
- A recent ACPI resources handling fix overlooked the fact that it had
to update the ACPI PNP subsystem's resources parsing too and caused
confusing warning messages to be printed during system intialization
on some systems (with arguably buggy ACPI tables). Fix from Zhang Rui.
- Moving the early ACPI initialization before timekeeping_init() earlier
in this cycle broke fast TSC calibration on at least one system, so it
needs to be done later, but still before efi_enter_virtual_mode() to
allow the EFI initialization to refer to ACPI.
- A change related to code duplication reduction in the cpufreq core
inadvertently caused cpufreq intialization to fail for some CPUs
handled by intel_pstate by adding checks that may fail for that
driver, but aren't even necessary when it is used. The issue is
addressed by preventing those checks from run in the configurations
in which they aren't needed.
- If the Hardware Reduced ACPI flag is set in the ACPI tables, system
suspend, hibernation and ACPI power off will only work when special
sleep control and sleep status registeres are provided (their
addresses in the ACPI tables are not zero). If those registers are
not available, the features in question have no chances to work,
so they shouldn't even be regarded as supported. That helps with
power off in particular, because alternative power off methods may
be used then and they may actually work.
/
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Merge tag 'pm+acpi-3.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"Three of these are regression fixes, for two recent regressions and
one introduced during the 3.13 cycle, and the fourth one is a working
version of the fix that had to be reverted last time.
Specifics:
- A recent ACPI resources handling fix overlooked the fact that it
had to update the ACPI PNP subsystem's resources parsing too and
caused confusing warning messages to be printed during system
intialization on some systems (with arguably buggy ACPI tables).
Fix from Zhang Rui.
- Moving the early ACPI initialization before timekeeping_init()
earlier in this cycle broke fast TSC calibration on at least one
system, so it needs to be done later, but still before
efi_enter_virtual_mode() to allow the EFI initialization to refer
to ACPI.
- A change related to code duplication reduction in the cpufreq core
inadvertently caused cpufreq intialization to fail for some CPUs
handled by intel_pstate by adding checks that may fail for that
driver, but aren't even necessary when it is used. The issue is
addressed by preventing those checks from run in the configurations
in which they aren't needed.
- If the Hardware Reduced ACPI flag is set in the ACPI tables, system
suspend, hibernation and ACPI power off will only work when special
sleep control and sleep status registeres are provided (their
addresses in the ACPI tables are not zero). If those registers are
not available, the features in question have no chances to work, so
they shouldn't even be regarded as supported. That helps with
power off in particular, because alternative power off methods may
be used then and they may actually work"
* tag 'pm+acpi-3.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states
ACPI / init: Invoke early ACPI initialization later
cpufreq: Skip current frequency initialization for ->setpolicy drivers
PNP / ACPI: proper handling of ACPI IO/Memory resource parsing failures
- fix corruption with >2TB fast device due to truncation bug
- fix access beyond end of origin device due to a partial block
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Merge tag 'dm-3.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device-mapper fixes form Mike Snitzer:
"Two small fixes for the DM cache target:
- fix corruption with >2TB fast device due to truncation bug
- fix access beyond end of origin device due to a partial block"
* tag 'dm-3.14-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix access beyond end of origin device
dm cache: fix truncation bug when copying a block to/from >2TB fast device
In Linux 3.13, dma_set_mask_and_coherent was introduced, and we have
been encouraged to use it. It simplifies the DMA mapping code a bit as
well.
Change-ID: I66e340245af7d0dedfa8b40fec1f5e352754432e
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Now that the 2.4 firmware reports the correct number of MSI-X vectors,
use this value correctly when communicating with the VF, and when
setting up the interrupt linked list.
The PF has always reported the correct number of MSI-X vectors, so we
should never increment the value in the vf driver.
Change-ID: Ifeefc631c321390192219ce2af9ada6180c1492f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We have a separate handler for MDD events, a generic reset is not required.
Change-ID: I77858e2d479e4e65c52aede67109464649ea0253
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The FDIR replay logic was being run a little too soon (before the
queues were enabled) and hence the tail bump was not effective till
a later transaction happened on the queue.
Change-ID: Icfd7cd2e79fc3cae3cbd3f703a2b3a148b4e7bf6
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add code to enforce the following policy:
- If the HW reports filter programming error, we check if it's due to a
full table.
- If so, we go ahead and turn off new rule addition for ATR and then SB
in that order.
- We monitor the programmed filter count, if enough room is created due
to filter deletion/reset, we then re-enable SB and ATR new rule addition.
Change-ID: I69d24b29e5c45bc4fa861258e11c2fa7b8868748
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This variable is a bit mask. It is needed to differentiate between
user enforced feature disables and auto disable of features due to
HW resource limitations.
Change-ID: Ib4b4f6ae1bb2668c12e482d2555100bc8ad713d5
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In a similar way to how ixgbe works, print a short one-line string
showing what features and number of queues the driver and hardware has
enabled at probe time.
Example (wrapped for the commit message):
i40e 0000:06:00.1: Features: PF-id[1] VFs: 64 VSIs: 66 QP: 32 FDir RSS
ATR NTUPLE DCB
Change-ID: I177bf7f93d1c4c921529c92fdf66e614f6b4f755
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch cleans up the strings that the driver prints during normal
operation and moves many strings into dev_dbg. It also cleans up
strings printed during reset.
Change-ID: I1835cc4e3c3b22596182b683284e6bb87eac61b2
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This cleans up strings for consistency, q is replaced with queue.
Change-ID: Ia5f9dfae9af261f4c24485854264e02363729cf3
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
1) Fix a name of the error bit to correctly indicate the error.
2) Added a fd_id field in the 32 byte desc at the place(qw0) where it gets
reported in the programming error desc WB. In a normal data desc
the fd_id field is reported in qw3.
Change-ID: Ide9a24bff7273da5889c36635d629bc3b5212010
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The update filter logic was causing a kernel panic in the original code.
We need to compare the input set to decide whether or not to delete a
filter since we do not have a hash stored. This new design helps fix the issue.
Change-ID: I2462b108e58ca4833312804cda730b4660cc18c9
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We've been deleting the netdev before getting around to deleting the napi
structs. Unfortunately, we then didn't delete the napi structs because we
have a check for netdev, thus we were leaving garbage around in the system.
Change-ID: Ife540176f6c9f801147495b3f2d2ac2e61ddcc58
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
For systems with multiple servers and routed fabric, all
northbridges get assigned to the first server. Fix this by also
using the node reported from the PCI bus. For single-fabric
systems, the northbriges are on PCI bus 0 by definition, which
are on NUMA node 0 by definition, so this is invarient on most
systems.
Tested on fam10h and fam15h single and multi-fabric systems and
candidate for stable.
Signed-off-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Steffen Persvold <sp@numascale.com>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/1394710981-3596-1-git-send-email-daniel@numascale.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull drm fixes from Dave Airlie:
"Pretty minor set of fixes for radeon, ttm and vmwgfx. The ttm ones
are a regression and an oops seen on server chipsets"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Fix a surface reference corner-case in legacy emulation mode
drm/radeon/cik: properly set compute ring status on disable
drm/radeon/cik: stop the sdma engines in the enable() function
drm/radeon/cik: properly set sdma ring status on disable
drm/radeon: fix runpm disabling on non-PX harder
drm/ttm: don't oops if no invalidate_caches()
drm/ttm: Work around performance regression with VM_PFNMAP
Pull i2c Kconfig fix from Wolfram Sang.
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: Remove usage of orphaned symbol OF_I2C
Pull networking fixes from David Miller:
"I know this is a bit more than you want to see, and I've told the
wireless folks under no uncertain terms that they must severely scale
back the extent of the fixes they are submitting this late in the
game.
Anyways:
1) vmxnet3's netpoll doesn't perform the equivalent of an ISR, which
is the correct implementation, like it should. Instead it does
something like a NAPI poll operation. This leads to crashes.
From Neil Horman and Arnd Bergmann.
2) Segmentation of SKBs requires proper socket orphaning of the
fragments, otherwise we might access stale state released by the
release callbacks.
This is a 5 patch fix, but the initial patches are giving
variables and such significantly clearer names such that the
actual fix itself at the end looks trivial.
From Michael S. Tsirkin.
3) TCP control block release can deadlock if invoked from a timer on
an already "owned" socket. Fix from Eric Dumazet.
4) In the bridge multicast code, we must validate that the
destination address of general queries is the link local all-nodes
multicast address. From Linus Lüssing.
5) The x86 BPF JIT support for negative offsets puts the parameter
for the helper function call in the wrong register. Fix from
Alexei Starovoitov.
6) The descriptor type used for RTL_GIGA_MAC_VER_17 chips in the
r8169 driver is incorrect. Fix from Hayes Wang.
7) The xen-netback driver tests skb_shinfo(skb)->gso_type bits to see
if a packet is a GSO frame, but that's not the correct test. It
should use skb_is_gso(skb) instead. Fix from Wei Liu.
8) Negative msg->msg_namelen values should generate an error, from
Matthew Leach.
9) at86rf230 can deadlock because it takes the same lock from it's
ISR and it's hard_start_xmit method, without disabling interrupts
in the latter. Fix from Alexander Aring.
10) The FEC driver's restart doesn't perform operations in the correct
order, so promiscuous settings can get lost. Fix from Stefan
Wahren.
11) Fix SKB leak in SCTP cookie handling, from Daniel Borkmann.
12) Reference count and memory leak fixes in TIPC from Ying Xue and
Erik Hugne.
13) Forced eviction in inet_frag_evictor() must strictly make sure all
frags are deleted, otherwise module unload (f.e. 6lowpan) can
crash. Fix from Florian Westphal.
14) Remove assumptions in AF_UNIX's use of csum_partial() (which it
uses as a hash function), which breaks on PowerPC. From Anton
Blanchard.
The main gist of the issue is that csum_partial() is defined only
as a value that, once folded (f.e. via csum_fold()) produces a
correct 16-bit checksum. It is legitimate, therefore, for
csum_partial() to produce two different 32-bit values over the
same data if their respective alignments are different.
15) Fix endiannes bug in MAC address handling of ibmveth driver, also
from Anton Blanchard.
16) Error checks for ipv6 exthdrs offload registration are reversed,
from Anton Nayshtut.
17) Externally triggered ipv6 addrconf routes should count against the
garbage collection threshold. Fix from Sabrina Dubroca.
18) The PCI shutdown handler added to the bnx2 driver can wedge the
chip if it was not brought up earlier already, which in particular
causes the firmware to shut down the PHY. Fix from Michael Chan.
19) Adjust the sanity WARN_ON_ONCE() in qdisc_list_add() because as
currently coded it can and does trigger in legitimate situations.
From Eric Dumazet.
20) BNA driver fails to build on ARM because of a too large udelay()
call, fix from Ben Hutchings.
21) Fair-Queue qdisc holds locks during GFP_KERNEL allocations, fix
from Eric Dumazet.
22) The vlan passthrough ops added in the previous release causes a
regression in source MAC address setting of outgoing headers in
some circumstances. Fix from Peter Boström"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (70 commits)
ipv6: Avoid unnecessary temporary addresses being generated
eth: fec: Fix lost promiscuous mode after reconnecting cable
bonding: set correct vlan id for alb xmit path
at86rf230: fix lockdep splats
net/mlx4_en: Deregister multicast vxlan steering rules when going down
vmxnet3: fix building without CONFIG_PCI_MSI
MAINTAINERS: add networking selftests to NETWORKING
net: socket: error on a negative msg_namelen
MAINTAINERS: Add tools/net to NETWORKING [GENERAL]
packet: doc: Spelling s/than/that/
net/mlx4_core: Load the IB driver when the device supports IBoE
net/mlx4_en: Handle vxlan steering rules for mac address changes
net/mlx4_core: Fix wrong dump of the vxlan offloads device capability
xen-netback: use skb_is_gso in xenvif_start_xmit
r8169: fix the incorrect tx descriptor version
tools/net/Makefile: Define PACKAGE to fix build problems
x86: bpf_jit: support negative offsets
bridge: multicast: enable snooping on general queries only
bridge: multicast: add sanity check for general query destination
tcp: tcp_release_cb() should release socket ownership
...
The symbol is an orphan, don't depend on it anymore.
Signed-off-by: Richard Weinberger <richard@nod.at>
[wsa: enhanced commit message]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fixes: 687b81d083 (i2c: move OF helpers into the core)
Cc: stable@kernel.org
If the HW Reduced ACPI mode bit is set in the FADT, ACPICA uses
the optional sleep control and sleep status registers for making
the system enter sleep states (including S5), so it is not possible
to use system sleep states or power it off using ACPI if the HW
Reduced ACPI mode bit is set and those registers are not available.
For this reason, add a new function, acpi_sleep_state_supported(),
checking if the HW Reduced ACPI mode bit is set and whether or not
system sleep states are usable in that case in addition to checking
the return value of acpi_get_sleep_type_data() and make the ACPI
sleep setup routines use that function to check the availability of
system sleep states.
Among other things, this prevents the kernel from attempting to
use ACPI for powering off HW Reduced ACPI systems without the sleep
control and sleep status registers, because ACPI power off doesn't
have a chance to work on them. That allows alternative power off
mechanisms that may actually work to be used on those systems. The
affected machines include Dell Venue 8 Pro, Asus T100TA, Haswell
Desktop SDP and Ivy Bridge EP Demo depot.
References: https://bugzilla.kernel.org/show_bug.cgi?id=70931
Reported-by: Adam Williamson <awilliam@redhat.com>
Tested-by: Aubrey Li <aubrey.li@linux.intel.com>
Cc: 3.4+ <stable@vger.kernel.org> # 3.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
most of these are only used locally, make them static.
fold lowpan_expire_frag_queue into its caller, its small enough.
Cc: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
tmp_prefered_lft is an offset to ifp->tstamp, not now. Therefore
age needs to be added to the condition.
Age calculation in ipv6_create_tempaddr is different from the one
in addrconf_verify and doesn't consider ADDRCONF_TIMER_FUZZ_MINUS.
This can cause age in ipv6_create_tempaddr to be less than the one
in addrconf_verify and therefore unnecessary temporary address to
be generated.
Use age calculation as in addrconf_modify to avoid this.
Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the sh_eth device is registered using OF, then the driver
should call of_mdiobus_register() to register the PHYs described
in the devicetree and then use of_phy_connect() to connect the
PHYs to the device.
This ensures that any PHYs registered in the device tree are
appropriately connected to the parent devices nodes so that
the PHY drivers can access their OF properties.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the Freescale fec is in promiscuous mode and network cable is
reconnected then the promiscuous mode get lost. The problem is caused
by a too soon call of set_multicast_list to re-enable promisc mode.
The FEC_R_CNTRL register changes are overwritten by fec_restart.
This patch fixes this by moving the call behind the init of FEC_R_CNTRL
register in fec_restart.
Successful tested on a i.MX28 board.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit d3ab3ffd1d
(bonding: use rlb_client_info->vlan_id instead of ->tag)
remove the rlb_client_info->tag, but occur some issues,
The vlan_get_tag() will return 0 for success and -EINVAL for
error, so the client_info->vlan_id always be set to 0 if the
vlan_get_tag return 0 for success, so the client_info would
never get a correct vlan id.
We should only set the vlan id to 0 when the vlan_get_tag return error.
Fixes: d3ab3ffd1d (bonding: use rlb_client_info->vlan_id instead of ->tag)
CC: Ding Tianhong <dingtianhong@huawei.com>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
nla_nest_end() already has return skb->len, so replace
return skb->len with return nla_nest_end instead().
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
bcm_enet_netpoll does not exist, and causing
bcm63xx_net to fail to build when NET_POLL_CONTROLLER
is defined.
Remove the bogus .ndo_poll_controller = bcm_enet_netpoll
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric W. Biederman says:
====================
Don't receive packets when the napi budget == 0
To the best of understanding processing any received packets when the
napi budget == 0 is broken driver behavior. At the same time I don't
think we have ever cared before so there are a handful of drivers that
need fixes.
I care now as I will shortly be using htis in netpoll to get the
tx queue processing without the rx queue processing.
Drivers that need fixes are few and far between, and so far I have only
found two of them. More similar patches later if I find more drivers
that need fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
