SA will query and cache class port info as part of
its initialization. SA will also invalidate and
refresh the cache based on specific events. Callers such
as IPoIB and CM can query the SA to get the classportinfo
information. Apart from making the caller code much simpler,
this change puts the onus on the SA to query and maintain
classportinfo much like how it maitains the address handle to the SM.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The Infiniband spec defines "A multicast address is defined by a
MGID and a MLID" (section 10.5).
The current code only uses the MGID for identifying multicast groups.
Update the driver to be compliant with this definition.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
After checking the path upwards towards root complex, actualy check
root complex atomic_req capability, and not our own NIC.
Verify that the PCIe device control register's atomic egress block
is cleared in the path.
Verify that the PCIe version is at least 2.
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
* pci/virtualization:
ixgbe: Use pcie_flr() instead of duplicating it
IB/hfi1: Use pcie_flr() instead of duplicating it
PCI: Call pcie_flr() from reset_chelsio_generic_dev()
PCI: Call pcie_flr() from reset_intel_82599_sfp_virtfn()
PCI: Export pcie_flr()
PCI: Add sysfs sriov_drivers_autoprobe to control VF driver binding
PCI: Avoid FLR for Intel 82579 NICs
Conflicts:
include/linux/pci.h
* pci/resource-mmap:
ia64: Use generic pci_mmap_resource_range()
ia64: Remove redundant checks for WC in pci_mmap_page_range()
ia64: Remove redundant valid_mmap_phys_addr_range() from pci_mmap_page_range()
PCI: Add I/O BAR support to generic pci_mmap_resource_range()
x86/PCI: Use generic pci_mmap_resource_range()
unicore32/PCI: Use generic pci_mmap_resource_range()
sh/PCI: Use generic pci_mmap_resource_range()
parisc: Use generic pci_mmap_resource_range()
mn10300/PCI: Use generic pci_mmap_resource_range()
MIPS: PCI: Use generic pci_mmap_resource_range()
cris/PCI: Use generic pci_mmap_resource_range()
ARM/PCI: Use generic pci_mmap_resource_range()
PCI: Add pci_mmap_resource_range() and use it for ARM64
PCI: Add BAR index argument to pci_mmap_page_range()
PCI: Use BAR index in sysfs attr->private instead of resource pointer
PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space
PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>
PCI: Add arch_can_pci_mmap_wc() macro
xtensa/PCI: Do not mmap PCI BARs to userspace as write-through
PCI: Only allow WC mmap on prefetchable resources
PCI: Fix another sanity check bug in /proc/pci mmap
PCI: Fix pci_mmap_fits() for HAVE_PCI_RESOURCE_TO_USER platforms
* pci/resource:
PCI: Don't resize resources when realigning all devices in system
PCI: Don't reassign resources that are already aligned
PCI: Factor pci_reassigndev_resource_alignment()
powerpc/powernv: Override pcibios_default_alignment() to force PCI devices to be page aligned
PCI: Add pcibios_default_alignment() for arch-specific alignment control
PCI: Fix calculation of bridge window's size and alignment
PCI: Ignore requested alignment for IOV BARs
PCI: Make PCI_ROM_ADDRESS_MASK a 32-bit constant
* pci/msi:
PCI/MSI: Use dev_printk() when possible
of/pci: Remove unused MSI controller helpers
PCI: mvebu: Remove useless MSI enabling code
PCI: aardvark: Move to MSI handling using generic MSI support
PCI/MSI: Make pci_msi_shutdown() and pci_msix_shutdown() static
PCI/MSI: Stop disabling MSI/MSI-X in pci_device_shutdown()
* pci/irq:
PCI: Disable boot interrupt quirk for ASUS M2N-LR
nvme/pci: Switch to pci_request_irq()
PCI/irq: Add pci_request_irq() and pci_free_irq() helpers
genirq: Return the IRQ name from free_irq()
genirq: Fix indentation in remove_irq()
* pci/ioremap:
PCI: versatile: Update PCI config space remap function
PCI: keystone-dw: Update PCI config space remap function
PCI: layerscape: Update PCI config space remap function
PCI: hisi: Update PCI config space remap function
PCI: tegra: Update PCI config space remap function
PCI: xgene: Update PCI config space remap function
PCI: armada8k: Update PCI config space remap function
PCI: designware: Update PCI config space remap function
PCI: iproc-platform: Update PCI config space remap function
PCI: qcom: Update PCI config space remap function
PCI: rockchip: Update PCI config space remap function
PCI: spear13xx: Update PCI config space remap function
PCI: xilinx-nwl: Update PCI config space remap function
PCI: xilinx: Update PCI config space remap function
PCI: ECAM: Map config region with pci_remap_cfgspace()
PCI: Implement devm_pci_remap_cfgspace()
devres: fix devm_ioremap_*() offset parameter kerneldoc description
ARM: Implement pci_remap_cfgspace() interface
ARM64: Implement pci_remap_cfgspace() interface
linux/io.h: Add pci_remap_cfgspace() interface
PCI: Remove __weak tag from pci_remap_iospace()
* pci/host-imx6:
PCI: imx6: Fix spelling mistake: "contol" -> "control"
PCI: imx6: Do not switch speed if Gen2 is disabled
PCI: imx6: Do not wait for speed change on i.MX7
PCI: imx6: Allow probe deferral by reset GPIO
PCI: imx6: Add code to support i.MX7D
Add PCI endpoint test driver that can verify base address register, legacy
interrupt/MSI interrupt and read/write/copy buffers between host and
device. The corresponding pci-epf-test function driver should be used on
the EP side.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Add device IDs for DRA74x and DRA72x devices. These devices have
configurable PCI endpoint.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The only difference between ->run_work and ->delay_work, is that
the latter is used to defer running a queue. This is done by
marking the queue stopped, and scheduling ->delay_work to run
sometime in the future. While the queue is stopped, direct runs
or runs through ->run_work will not run the queue.
If we combine the handlers, then we need to handle two things:
1) If a delayed/stopped run is scheduled, then we should not run
the queue before that has been completed.
2) If a queue is delayed/stopped, the handler needs to restart
the queue. Normally a run of a queue with the stopped bit set
would be a no-op.
Case 1 is handled by modifying a currently pending queue run
to the deadline set by the caller of blk_mq_delay_queue().
Subsequent attempts to queue a queue run will find the work
item already pending, and direct runs will see a stopped queue
as before.
Case 2 is handled by adding a new bit, BLK_MQ_S_START_ON_RUN,
that tells the work handler that it should clear a stopped
queue and run the handler.
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This modifies (or adds, if not currently pending) an existing
delayed work item.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
They serve the exact same purpose. Get rid of the non-delayed
work variant, and just run it without delay for the normal case.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Parse the BSS max idle period element and set the BSS configuration
accordingly so the driver can use this information to configure the
max idle period and to use protected management frames for keep alive
when required.
The BSS max idle period element is defined in IEEE802.11-2016,
section 9.4.2.79
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
cfg80211_roamed() and cfg80211_roamed_bss() take the same arguments
except that cfg80211_roamed() requires the BSSID and
cfg80211_roamed_bss() requires the bss entry.
Unify the two functions by using a struct for driver initiated
roaming information so that either the BSSID or the bss entry can be
passed as an argument to the unified function.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
[modified the ath6k, brcm80211, rndis and wlan-ng drivers accordingly]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
[modify brcmfmac to remove the useless cast, spotted by Arend]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are no in-tree callers of this function and it isn't exported.
Signed-off-by: Aaron Conole <aconole@bytheb.org>
Signed-off-by: Simon Horman <horms@verge.net.au>
This allows the driver to pass in struct ieee80211_tx_status directly.
Make ieee80211_tx_status_noskb a wrapper around it.
As with ieee80211_tx_status_noskb, there is no _ni variant of this call,
because it probably won't be needed.
Even if the driver won't provide any extra status info other than what's
in struct ieee80211_tx_info already, it can optimize status reporting
this way by passing in the station pointer.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
[use C99 initializers]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Rename .tx_status_noskb to .tx_status_ext and pass a new on-stack
struct ieee80211_tx_status instead of struct ieee80211_tx_info.
This struct can be used to pass extra information, e.g. for dynamic tx
power control
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This field will need to be used again for HE, so rename it now.
Again, mostly done with this spatch:
@@
expression status;
@@
-status->vht_nss
+status->nss
@@
expression status;
@@
-status.vht_nss
+status.nss
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If the R-Car RST driver is not included, compile-testing R-Car clock
drivers fails with a link error:
undefined reference to `rcar_rst_read_mode_pins'
To fix this, provide a dummy version. Use the exact same test logic as
in drivers/soc/renesas/Makefile, as there is no Kconfig symbol (yet) to
control compilation of the R-Car RST driver.
Fixes: 527c02f66d ("soc: renesas: Add R-Car RST driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Add missing pinctrl binding these which would be used in
devicetree related files.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This merges in the powerpc topic/xive branch to bring in the code for
the in-kernel XICS interrupt controller emulation to use the new XIVE
(eXternal Interrupt Virtualization Engine) hardware in the POWER9 chip
directly, rather than via a XICS emulation in firmware.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
We want to use kthread_stop() in order to ensure the threads are
shut down before we tear down the nfs_callback_info in nfs_callback_down.
Tested-and-reviewed-by: Kinglong Mee <kinglongmee@gmail.com>
Reported-by: Kinglong Mee <kinglongmee@gmail.com>
Fixes: bb6aeba736 ("NFSv4.x: Switch to using svc_set_num_threads()...")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Introduce an enumeration type for the queue mode. This patch does
not change any functionality but makes the DM code easier to read.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Support for l2 multicast flood control was added in commit b6cb5ac833
("net: bridge: add per-port multicast flood flag"). It allows broadcast
as it was introduced specifically for unknown multicast flood control.
But as broadcast is a special case of multicast, this may also need to
be disabled. For this purpose, introduce a flag to disable the flooding
of received l2 broadcasts. This approach is backwards compatible and
provides flexibility in filtering for the desired packet types.
Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Mike Manning <mmanning@brocade.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch updates the comment for netif_dormant() function to reflect
the intended usage.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull vfs fixes from Al Viro:
- fix orangefs handling of faults on write() - I'd missed that one back
when orangefs was going through review.
- readdir counterpart of "9p: cope with bogus responses from server in
p9_client_{read,write}" - server might be lying or broken, and we'd
better not overrun the kmalloc'ed buffer we are copying the results
into.
- NFS O_DIRECT read/write can leave iov_iter advanced by too much;
that's what had been causing iov_iter_pipe() warnings davej had been
seeing.
- statx_timestamp.tv_nsec type fix (s32 -> u32). That one really should
go in before 4.11.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
uapi: change the type of struct statx_timestamp.tv_nsec to unsigned
fix nfs O_DIRECT advancing iov_iter too much
p9_client_readdir() fix
orangefs_bufmap_copy_from_iovec(): fix EFAULT handling
When max_size is not set or if it set to a sufficiently large
value, the nelems counter can overflow. This would cause havoc
with the automatic shrinking as it would then attempt to fit a
huge number of entries into a tiny hash table.
This patch fixes this by adding max_elems to struct rhashtable
to cap the number of elements. This is set to 2^31 as nelems is
not a precise count. This is sufficiently smaller than UINT_MAX
that it should be safe.
When max_size is set max_elems will be lowered to at most twice
max_size as is the status quo.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
KVM/ARM Changes for v4.12.
Changes include:
- Using the common sysreg definitions between KVM and arm64
- Improved hyp-stub implementation with support for kexec and kdump on the 32-bit side
- Proper PMU exception handling
- Performance improvements of our GIC handling
- Support for irqchip in userspace with in-kernel arch-timers and PMU support
- A fix for a race condition in our PSCI code
Conflicts:
Documentation/virtual/kvm/api.txt
include/uapi/linux/kvm.h
kvm_make_all_requests() provides a synchronization that waits until all
kicked VCPUs have acknowledged the kick. This is important for
KVM_REQ_MMU_RELOAD as it prevents freeing while lockless paging is
underway.
This patch adds the synchronization property into all requests that are
currently being used with kvm_make_all_requests() in order to preserve
the current behavior and only introduce a new framework. Removing it
from requests where it is not necessary is left for future patches.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
kvm_vcpu_kick() must issue a general memory barrier prior to reading
vcpu->mode in order to ensure correctness of the mutual-exclusion
memory barrier pattern used with vcpu->requests. While the cmpxchg
called from kvm_vcpu_kick():
kvm_vcpu_kick
kvm_arch_vcpu_should_kick
kvm_vcpu_exiting_guest_mode
cmpxchg
implies general memory barriers before and after the operation, that
implication is only valid when cmpxchg succeeds. We need an explicit
barrier for when it fails, otherwise a VCPU thread on its entry path
that reads zero for vcpu->requests does not exclude the possibility
the requesting thread sees !IN_GUEST_MODE when it reads vcpu->mode.
kvm_make_all_cpus_request already had a barrier, so we remove it, as
now it would be redundant.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Some operations must ensure that the guest is not running with stale
data, but if the guest is halted, then the update can wait until another
event happens. kvm_make_all_requests() currently doesn't wake up, so we
can mark all requests used with it.
First 8 bits were arbitrarily reserved for request numbers.
Most uses of requests have the request type as a constant, so a compiler
will optimize the '&'.
An alternative would be to have an inline function that would return
whether the request needs a wake-up or not, but I like this one better
even though it might produce worse assembly.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Users were expected to use kvm_check_request() for testing and clearing,
but request have expanded their use since then and some users want to
only test or do a faster clear.
Make sure that requests are not directly accessed with bit operations.
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch makes KVM capable of using the XIVE interrupt controller
to provide the standard PAPR "XICS" style hypercalls. It is necessary
for proper operations when the host uses XIVE natively.
This has been lightly tested on an actual system, including PCI
pass-through with a TG3 device.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[mpe: Cleanup pr_xxx(), unsplit pr_xxx() strings, etc., fix build
failures by adding KVM_XIVE which depends on KVM_XICS and XIVE, and
adding empty stubs for the kvm_xive_xxx() routines, fixup subject,
integrate fixes from Paul for building PR=y HV=n]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
AXP803 is a new PMIC chip produced by X-Powers, usually paired with A64
via RSB bus. The PMIC itself is like AXP288, but with RSB support and
dedicated VBUS and ACIN.
Add support for it in the axp20x mfd driver.
Currently only power key function is supported.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The function is in no fast-path, there is no need for it to
be static inline in a header file. This also removes the
need to include iommu trace-points in iommu.h.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
We make use of 'struct device' in iommu.h, so include
device.h to make it available explicitly.
Re-order the other headers while at it.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
