From: "K. Y. Srinivasan"
Some miscellaneous fixes and adjustments.
Dexuan Cui (2):
Drivers: hv: vmbus: respect what we get from hv_get_synint_state()
Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
Stephen Hemminger (2):
hv: add SPDX license to trace
hv: add SPDX license id to Kc
From: Dexuan Cui
The pci-hyperv driver's channel callback hv_pci_onchannelcallback() is not
really a hot path, so we don't need to mark it as a perf_device, meaning
with this patch all HV_PCIE channels' target_cpu will be CPU0.
Signed-off-by: Dexuan Cui
Cc: sta...@vger.kernel.org
Cc: Stephen He
From: Dexuan Cui
I didn't really hit a bug, but just happened to notice the redundant line.
Signed-off-by: Dexuan Cui
Cc: Stephen Hemminger
Cc: K. Y. Srinivasan
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/hv/hv.c b/drivers/h
From: Stephen Hemminger
Missing license on Kconfig file.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 50b89ea0e60f..97954f575c3f 100644
--- a/drivers/
From: Stephen Hemminger
Missing license on Hyper-V VMBUS tracing files.
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_trace.c | 2 ++
drivers/hv/hv_trace.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/drivers/hv/hv_trace.c b/drivers/hv/hv_trace.c
From: "K. Y. Srinivasan"
Some miscellaneous fixes/improvements.
Arjan van de Ven (1):
use the new async probing feature for the hyperv drivers
Dexuan Cui (1):
Drivers: hv: vmbus: Fix the offer_in_progress in vmbus_process_offer()
Michael Kelley (4):
x86/hyperv: Add interrupt handler ann
From: Michael Kelley
Add comments describing intricacies of Hyper-V ring buffer
signaling code. This information is not in Hyper-V public
documents, so include here to capture the knowledge for
future coders.
There are no code changes in this commit.
Signed-off-by: Michael Kelley
Signed-off-b
From: Dexuan Cui
I didn't really hit a real bug, but just happened to spot the bug:
we have decreased the counter at the beginning of vmbus_process_offer(),
so we mustn't decrease it again.
Fixes: 6f3d791f3006 ("Drivers: hv: vmbus: Fix rescind handling issues")
Signed-off-by: Dexuan Cui
Cc: sta
From: Olaf Hering
Python3 changed the way how 'print' works.
Adjust the code to a syntax that is understood by python2 and python3.
Signed-off-by: Olaf Hering
Acked-by: Dexuan Cui
Signed-off-by: K. Y. Srinivasan
---
tools/hv/lsvmbus | 12 ++--
1 file changed, 6 insertions(+), 6 delet
From: Vitaly Kuznetsov
Commit ea81fdf0981d ("Tools: hv: vss: Skip freezing filesystems backed by
loop") added skip for filesystems backed by loop device. However, it seems
the detection of such cases is incomplete.
It was found that with 'devicemapper' storage driver docker creates the
following
From: Michael Kelley
Add standard interrupt handler annotations to
hyperv_vector_handler(). This does not fix any observed
bug, but avoids potential removal of the code by link
time optimization and makes it consistent with
hv_stimer0_vector_handler in the same source file.
Suggested-by: Thomas
From: Michael Kelley
The Hyper-V feature and hint flags in hyperv-tlfs.h are all defined
with the string "X64" in the name. Some of these flags are indeed
x86/x64 specific, but others are not. For the ones that are used
in architecture independent Hyper-V driver code, or will be used in
the upc
From: Arjan van de Ven
Recent kernels support asynchronous probing; most hyperv drivers
can be probed async easily so set the required flag for this.
Signed-off-by: Arjan van de Ven
Signed-off-by: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hid/hid-hyperv.c | 3
From: Michael Kelley
In architecture independent code for manipulating Hyper-V synthetic timers
and synthetic interrupts, pass in an ordinal number identifying the timer
or interrupt, rather than an actual MSR register address. Then in
x86/x64 specific code, map the ordinal number to the appropr
From: "K. Y. Srinivasan"
Implement APIC related enlightenments.
V2: Addressed comments from Thomas Gleixner
and Michael Kelley (EOSG) .
V3: Address build issues reported by kbuild test robot
K. Y. Srinivasan (5):
X86: Hyper-V: Enlighten APIC access
X86: Hyper-V: Enable IPI enlightenments
From: "K. Y. Srinivasan"
Consolidate code for converting cpumask to vpset.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/mmu.c | 43 ++-
1 file changed, 2 insertions(+), 41 deletions(-)
diff --git a/arch/x86/hyperv/mmu
From: "K. Y. Srinivasan"
Support enhanced IPI enlightenments (to target more than 64 CPUs).
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/hv_apic.c | 42 +-
arch/x86/hyperv/mmu.c | 2 +-
arch/x86/include/asm/
From: "K. Y. Srinivasan"
Hyper-V supports hypercalls to implement IPI; use them.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/hv_apic.c | 117 +
arch/x86/hyperv/hv_init.c | 27 +++
arch/x86/include/asm/hyper
From: "K. Y. Srinivasan"
Consolidate the allocation of the hypercall input page.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/hv_init.c | 2 --
arch/x86/hyperv/mmu.c | 30 ++
arch/x86/include/asm/mshyperv.h | 1 -
From: "K. Y. Srinivasan"
Hyper-V supports MSR based APIC access; implement
the enlightenment.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Michael Kelley
---
arch/x86/hyperv/Makefile| 2 +-
arch/x86/hyperv/hv_apic.c | 104
arch/x86/hyperv/hv_in
From: "K. Y. Srinivasan"
Implement APIC related enlightenments.
K. Y. Srinivasan (5):
X86: Hyper-V: Enlighten APIC access
X86: Hyper-V: Enable IPI enlightenments
X86: Hyper-V: Enhanced IPI enlightenment
X86: Hyper-V: Consolidate code for converting cpumask to vpset
X86: Hyper-V: Consol
From: "K. Y. Srinivasan"
Support enhanced IPI enlightenments (to target more than 64 CPUs).
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 49 --
arch/x86/include/asm/hyperv-tlfs.h | 1 +
arch/x86/include/asm/mshyperv.h| 39 +++
From: "K. Y. Srinivasan"
Consolidate the allocation of the hypercall input page.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 2 --
arch/x86/hyperv/mmu.c | 33 +
arch/x86/include/asm/mshyperv.h | 1 -
3 files changed, 9 inser
From: "K. Y. Srinivasan"
Hyper-V supports MSR based APIC access; implement
the enlightenment.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/Makefile| 2 +-
arch/x86/hyperv/hv_apic.c | 98 +
arch/x86/hyperv/hv_init.c | 5 ++-
a
From: "K. Y. Srinivasan"
Consolidate code for converting cpumask to vpset.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 2 +-
arch/x86/hyperv/mmu.c | 45 +++---
arch/x86/include/asm/hyperv-tlfs.h | 2 +-
3 files changed
From: "K. Y. Srinivasan"
Hyper-V supports hypercalls to implement IPI; use them.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 125 +
arch/x86/hyperv/hv_init.c | 17 +
arch/x86/include/asm/hyperv-tlfs.h | 9 +++
arc
From: "K. Y. Srinivasan"
Miscellaneous fixes.
Dexuan Cui (4):
Drivers: hv: vmbus: Fix the descriptions of some function parameters
Drivers: hv: kvp: Fix the indentation of some "break" statements
Drivers: hv: kvp: Fix two "this statement may fall through" warnings
Drivers: hv: vmbus: Use
From: Dexuan Cui
No functional change.
Signed-off-by: Dexuan Cui
Cc: K. Y. Srinivasan
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_kvp.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv
From: Dexuan Cui
A cpumask structure on the stack can cause a warning with
CONFIG_NR_CPUS=8192 (e.g. Ubuntu 16.04 and 18.04 use this):
drivers/hv//channel_mgmt.c: In function ‘init_vp_index’:
drivers/hv//channel_mgmt.c:702:1: warning: the frame size of 1032 bytes
is larger than 1024 bytes [-Wf
From: Dexuan Cui
No functional change.
Added descriptions for some parameters.
Fixed some typos.
Removed some out-of-date comments.
Signed-off-by: Dexuan Cui
Cc: Jonathan Corbet
Cc: linux-...@vger.kernel.org
Cc: K. Y. Srinivasan
Cc: Haiyang Zhang
Cc: Stephen Hemminger
Signed-off-by: K. Y.
From: Dexuan Cui
We don't need to call process_ib_ipinfo() if message->kvp_hdr.operation is
KVP_OP_GET_IP_INFO in kvp_send_key(), because here we just need to pass on
the op code from the host to the userspace; when the userspace returns
the info requested by the host, we pass the info on to the
From: "K. Y. Srinivasan"
Miscellaneous fixes.
V2: Only the patch "Drivers: hv: vmbus: Implement Direct Mode for
stimer0"
has been modified to address review comments from Dan Carpenter.
Dexuan Cui (1):
tools: hv: fix compiler warnings about major/target_fname
Haiyang Zhang (2
From: Haiyang Zhang
The comments doesn't match what the current code does, also have a
typo. This patch corrects them.
Signed-off-by: Haiyang Zhang
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel_mgmt.c | 6 ++
include/linux/hyperv.h| 2 +-
2 files changed, 3 insertions(+), 5 d
From: Haiyang Zhang
On Hyper-V the VF NIC has the same MAC as the related synthetic NIC.
VF NIC can work under the synthetic NIC transparently, without its
own IP address. The existing KVP daemon only gets IP from the first
NIC matching a MAC address, and may not be able to find the IP in
this ca
From: Vitaly Kuznetsov
We have a mix of different ideas of which loglevel should be used. Unify
on the following:
- pr_info() for normal operation
- pr_warn() for 'strange' host behavior
- pr_err() for all errors.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/
From: Joe Perches
Just a trivial tyop fix.
Signed-off-by: Joe Perches
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index b6cacc4cccf2..31142b72f1b9 100644
--- a/drivers/hv/hv.c
+++ b/d
From: "lantianyu1...@gmail.com"
Some hv_get/set** helper functions in ring_buffer code are
only called once or not used. This patch is to clear up these codes.
Signed-off-by: Tianyu Lan
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/ring_buffer.c | 49 -
From: Vitaly Kuznetsov
Instead of doing pfn_to_page() and continuosly casting page to unsigned
long just cache the pfn of the page with page_to_pfn().
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c | 27 +--
1 file changed,
From: Michael Kelley
The 2016 version of Hyper-V offers the option to operate the guest VM
per-vcpu stimer's in Direct Mode, which means the timer interupts on its
own vector rather than queueing a VMbus message. Direct Mode reduces
timer processing overhead in both the hypervisor and the guest,
From: Jia-Ju Bai
The kzalloc function is called with GFP_ATOMIC.
But according to driver call graph, it is not in atomic context,
namely no spinlock is held nor in an interrupt handler.
This GFP_ATOMIC is unnecessary, and replace with GFP_KERNEL.
Signed-off-by: Jia-Ju Bai
Reviewed-by: Vitaly K
From: Vitaly Kuznetsov
Hyper-V balloon driver makes non-trivial calculations to convert Linux's
representation of free/used memory to what Hyper-V host expects to see. Add
a tracepoint to see what's being sent and where the data comes from.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. S
From: Vitaly Kuznetsov
Our num_pages_onlined accounting is buggy:
1) In case we're offlining a memory block which was present at boot (e.g.
when there was no hotplug at all) we subtract 32k from 0 and as
num_pages_onlined is unsigned get a very big positive number.
2) Commit 6df8d9aaf3af (
From: Dexuan Cui
This patch fixes the below warnings with new glibc and gcc:
hv_vss_daemon.c:100:13: warning: In the GNU C Library, "major" is defined
by . For historical compatibility, it is currently
defined by as well, but we plan to remove this soon.
To use "major", include directly.
h
From: Olaf Hering
The usage of strchr requires inclusion of string.h.
Fixes: 0c38cda64aec ("tools: hv: remove unnecessary header files and netlink
related code")
Signed-off-by: Olaf Hering
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_fcopy_daemon.c | 1 +
1 file changed, 1 insertion(+)
d
From: Michael Kelley
Fix bugs in signaling the Hyper-V host when freeing space in the
host->guest ring buffer:
1. The interrupt_mask must not be used to determine whether to signal
on the host->guest ring buffer
2. The ring buffer write_index must be read (via hv_get_bytes_to_write)
*after
From: "K. Y. Srinivasan"
Implement APIC related enlightenments.
V2: Addressed comments from Thomas Gleixner
and Michael Kelley (EOSG) .
K. Y. Srinivasan (5):
X86: Hyper-V: Enlighten APIC access
X86: Hyper-V: Enable IPI enlightenments
X86: Hyper-V: Enhanced IPI enlightenment
X86: Hyper-
From: "K. Y. Srinivasan"
Hyper-V supports hypercalls to implement IPI; use them.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 118 +
arch/x86/hyperv/hv_init.c | 27 +
arch/x86/include/asm/hyperv-tlfs.h | 15
From: "K. Y. Srinivasan"
Hyper-V supports MSR based APIC access; implement
the enlightenment.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/Makefile| 2 +-
arch/x86/hyperv/hv_apic.c | 101
arch/x86/hyperv/hv_init.c | 5 +-
From: "K. Y. Srinivasan"
Consolidate the allocation of the hypercall input page.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_init.c | 2 --
arch/x86/hyperv/mmu.c | 30 ++
arch/x86/include/asm/mshyperv.h | 1 -
3 files changed, 6 insertio
From: "K. Y. Srinivasan"
Support enhanced IPI enlightenments (to target more than 64 CPUs).
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/hv_apic.c | 42 +-
arch/x86/hyperv/mmu.c | 2 +-
arch/x86/include/asm/hyperv-tlfs.h | 15 ++
From: "K. Y. Srinivasan"
Consolidate code for converting cpumask to vpset.
Signed-off-by: K. Y. Srinivasan
---
arch/x86/hyperv/mmu.c | 43 ++-
1 file changed, 2 insertions(+), 41 deletions(-)
diff --git a/arch/x86/hyperv/mmu.c b/arch/x86/hyperv/mmu.c
in
From: K. Y. Srinivasan
Some miscellaneous fixes.
K. Y. Srinivasan (1):
Drivers: hv: vmbus: Prevent sending data on a rescinded channel
Vitaly Kuznetsov (4):
Drivers: hv: vmbus: Raise retry/wait limits in vmbus_post_msg()
hv: allocate synic pages for all present CPUs
hv: init percpu_list
From: Vitaly Kuznetsov
DoS protection conditions were altered in WS2016 and now it's easy to get
-EAGAIN returned from vmbus_post_msg() (e.g. when we try changing MTU on a
netvsc device in a loop). All vmbus_post_msg() callers don't retry the
operation and we usually end up with a non-functional
From: Vitaly Kuznetsov
It may happen that secondary CPUs are still alive and resetting
hv_context.tsc_page will cause a consequent crash in read_hv_clock_tsc()
as we don't check for it being not NULL there. It is safe as we're not
freeing this page anyways.
Signed-off-by: Vitaly Kuznetsov
Signe
From: K. Y. Srinivasan
After the channel is rescinded, the host does not read from the rescinded
channel.
Fail writes to a channel that has already been rescinded. If we permit writes
on a
rescinded channel, since the host will not respond we will have situations where
we will be unable to unlo
From: Vitaly Kuznetsov
Initializing hv_context.percpu_list in hv_synic_alloc() helps to prevent a
crash in percpu_channel_enq() when not all CPUs were online during
initialization and it naturally belongs there.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Cc:
---
drivers/
From: Vitaly Kuznetsov
It may happen that not all CPUs are online when we do hv_synic_alloc() and
in case more CPUs come online later we may try accessing these allocated
structures.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Cc:
---
drivers/hv/hv.c |4 ++--
1 files
From: Vitaly Kuznetsov
Since commit e513229b4c38 ("Drivers: hv: vmbus: prevent cpu offlining on
newer hypervisors") cpu offlining was disabled. It is still true that we
can't offline CPUs which have VMBus channels bound to them but we may have
'free' CPUs (e.v. we booted with maxcpus= parameter a
From: Vitaly Kuznetsov
To make it possible to online/offline CPUs switch to cpuhp infrastructure
for doing hv_synic_init()/hv_synic_cleanup().
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv.c | 15 +++
drivers/hv/hyperv_vmbus.h |4
From: K. Y. Srinivasan
Enhance CPU online/offline management.
Vitaly Kuznetsov (2):
hv: switch to cpuhp state machine for synic init/cleanup
hv: make CPU offlining prevention fine-grained
drivers/hv/hv.c | 46 +---
drivers/hv/hyperv_vmbus
From: K. Y. Srinivasan
Implement VF association based on serial number published by
the host.
Greg, as promised here is the patchset that would use the API for
detecting if the device is a vmbus device.
If you can take the first two patches, we can submit the netvsc
patch to the net-next tree.
From: Haiyang Zhang
Move some vPCI data structures to hyperv.h,
because we share them with other module.
Signed-off-by: Haiyang Zhang
Signed-off-by: K. Y. Srinivasan
---
drivers/pci/host/pci-hyperv.c | 91 --
include/linux/hyperv.h| 98 +
From: Haiyang Zhang
On Hyper-V, every VF interface has a corresponding synthetic
interface managed by netvsc that share the same MAC
address. netvsc registers for netdev events to manage this
association. Currently we use the MAC address to manage this
association but going forward, we want to us
From: Haiyang Zhang
We currently use MAC address to match VF and synthetic NICs. Hyper-V
provides a serial number to both devices for this purpose. This patch
implements the matching based on VF serial numbers. This is the way
specified by the protocol and more reliable.
Signed-off-by: Haiyang Z
From: K. Y. Srinivasan
Use the new APIs for eliminating a copy on the receive path. These new APIs also
help in minimizing the number of memory barriers we end up issuing (in the
ringbuffer code) since we can better control when we want to expose the ring
state to the host.
The patch is being re
From: K. Y. Srinivasan
Make in-place consumption of VMBus packets always possible. Currently we forbid
it when a packet 'wraps around' the ring so we can't provide a single
pointer to it.
The idea if this series is dead simple: let's make a single virtual mapping
for two copies (actually, two se
From: Vitaly Kuznetsov
With wrap around mappings for ring buffers we can always use a single
memcpy() to do the job.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Tested-by: Dexuan Cui
---
drivers/hv/ring_buffer.c | 24 +++-
1 files changed, 3 insertio
From: Vitaly Kuznetsov
Make it possible to always use a single memcpy() or to provide a direct
link to a packet on the ring buffer by creating virtual mapping for two
copies of the ring buffer with vmap(). Utilize currently empty
hv_ringbuffer_cleanup() to do the unmap.
While on it, replace size
From: Vitaly Kuznetsov
With wrap around mappings in place we can always provide drivers with
direct links to packets on the ring buffer, even when they wrap around.
Do the required updates to get_next_pkt_raw()/put_pkt_raw()
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Srinivasan
Teste
From: Vitaly Kuznetsov
In preparation for doing wrap around mappings for ring buffers cleanup
vmbus_open() function:
- check that ring sizes are PAGE_SIZE aligned (they are for all in-kernel
drivers now);
- kfree(open_info) on error only after we kzalloc() it (not an issue as it
is valid to c
From: K. Y. Srinivasan
Introduce a mechanism to control how channels will be affinitized. We will
support two policies:
1. HV_BALANCED: All performance critical channels will be dstributed
evenly amongst all the available NUMA nodes. Once the Node is assigned,
we will assign the CPU based on a s
From: Vitaly Kuznetsov
KVP daemon does fork()/exec() (with popen()) so we need to close our fds
to avoid sharing them with child processes. The immediate implication of
not doing so I see is SELinux complaining about 'ip' trying to access
'/dev/vmbus/hv_kvp'.
Signed-off-by: Vitaly Kuznetsov
Sig
From: K. Y. Srinivasan
Some miscellaneous adjustments to the vmbus driver.
K. Y. Srinivasan (3):
Drivers: hv: vmbus: Enable explicit signaling policy for NIC channels
Drivers: hv: vmbus: Reduce the delay between retries in
vmbus_post_msg()
Drivers: hv: vmbus: Implement a mechanism to t
From: K. Y. Srinivasan
On Hyper-V, performance critical channels use the monitor
mechanism to signal the host when the guest posts mesages
for the host. This mechanism minimizes the hypervisor intercepts
and also makes the host more efficient in that each time the
host is woken up, it processes a
From: K. Y. Srinivasan
The current delay between retries is unnecessarily high and is negatively
affecting the time it takes to boot the system.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/connection.c |8
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/h
From: K. Y. Srinivasan
For synthetic NIC channels, enable explicit signaling policy as netvsc wants to
explicitly control when the host is to be signaled.
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/channel.c | 18 --
drivers/hv/channel_mgmt.c |2 ++
drivers/hv/hy
From: Long Li
The host keeps sending heartbeat packets independent of the
guest responding to them. Even though we respond to the heartbeat messages at
interrupt level, we can have situations where there maybe multiple heartbeat
messages pending that have not been responded to. For instance this
From: Long Li
The host keeps sending heartbeat packets independent of the
guest responding to them. Even though we respond to the heartbeat messages at
interrupt level, we can have situations where there maybe multiple heartbeat
messages pending that have not been responded to. For instance this
From: Weibing Zhang
The link flag pthread is not needed.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/Makefile |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index a8c4644..0d1e61b 100644
--- a/tool
From: Alex Ng
Increase the timeout of backup operations. When system is under I/O load,
it needs more time to freeze. These timeout values should also match the
host timeout values more closely.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c |8 ++-
From: Vitaly Kuznetsov
I discovered that at least WS2016TP5 host has 60 seconds timeout for the
ICMSGTYPE_NEGOTIATE message so we need to lower guest's timeout a little
bit to make sure we always respond in time. Let's make it 55 seconds.
Signed-off-by: Vitaly Kuznetsov
Signed-off-by: K. Y. Sri
From: Vitaly Kuznetsov
With wrap around mappings in place we can always provide drivers with
direct links to packets on the ring buffer, even when they wrap around.
Do the required updates to get_next_pkt_raw()/put_pkt_raw()
The first version of this commit was reverted (65a532f3d50a) to deal wi
From: Stephen Hemminger
In commit 9a56e5d6a0ba ("Drivers: hv: make VMBus bus ids persistent")
the name of vmbus devices in sysfs changed to be (in 4.9-rc1):
/sys/bus/vmbus/vmbus-6aebe374-9ba0-11e6-933c-00259086b36b
The prefix ("vmbus-") is redundant and differs from how PCI is
represented in s
From: Weibing Zhang
hv_kvp_daemon.c: In function .kvp_mac_to_if_name.:
hv_kvp_daemon.c:705:2: warning: format not a string literal and no format
arguments [-Wformat-security]
snprintf(dev_id, sizeof(dev_id), kvp_net_dir);
^
hv_kvp_daemon.c:705:2: warning: format not a string literal and no f
From: Alex Ng
If the guest does not support memory hotplugging, it should respond to
the host with zero pages added and successful result code. This signals
to the host that hotplugging is not supported and the host will avoid
sending future hot-add requests.
Signed-off-by: Alex Ng
Signed-off-b
From: Alex Ng
Adding log messages to help troubleshoot error cases and transaction
handling.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c | 25 +++--
1 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/hv/hv_snap
From: K. Y. Srinivasan
Signal the host when we determine the host is to be signaled -
on th read path. The currrent code determines the need to signal in the
ringbuffer code and actually issues the signal elsewhere. This can result
in the host viewing this interrupt as spurious since the host may
From: Alex Ng
We should intentionally declare the protocols to use for every known host
and default to using the latest protocol if the host is unknown or new.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_util.c |9 ++---
1 files changed, 6 insertions(+), 3
From: Weibing Zhang
Remove unnecessary header files and netlink related code as the daemons
do not use netlink to communicate with the kernel now.
Signed-off-by: Weibing Zhang
Signed-off-by: K. Y. Srinivasan
---
tools/hv/hv_fcopy_daemon.c |7 ---
tools/hv/hv_kvp_daemon.c |7
From: K. Y. Srinivasan
Some miscellaneous fixes and enhancements.
Alex Ng (6):
Drivers: hv: utils: Fix the mapping between host version and protocol
to use
Drivers: hv: balloon: Disable hot add when CONFIG_MEMORY_HOTPLUG is
not set
Drivers: hv: balloon: Add logging for dynamic memo
ritten anything. This is a rare
-* enough condition that it should not matter.
-* NOTE: in this case, the hvsock channel is an exception, because
-* it looks the host side's hvsock implementation has a throttling
-* mechanism which can hurt the performance otherwise.
-
From: Alex Ng
Added logging to help troubleshoot common ballooning, hot add,
and versioning issues.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c | 31 ---
1 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/driver
From: Alex Ng
Balloon driver was only printing the size of the info blob and not the
actual content. This fixes it so that the info blob (max page count as
configured in Hyper-V) is printed out.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c |9 +++-
the performance otherwise.
+*
+* KYS: Oct. 30, 2016:
+* It looks like Windows hosts have logic to deal with DOS attacks that
+* can be triggered if it receives interrupts when it is not expecting
+* the interrupt. The host expects interrupts only when the ring
+
From: Stephen Hemminger
In commit 9a56e5d6a0ba ("Drivers: hv: make VMBus bus ids persistent")
the name of vmbus devices in sysfs changed to be (in 4.9-rc1):
/sys/bus/vmbus/vmbus-6aebe374-9ba0-11e6-933c-00259086b36b
The prefix ("vmbus-") is redundant and differs from how PCI is
represented in s
From: K. Y. Srinivasan
Some miscellaneous fixes and enhancements.
V2: Fixed a build issue reported by Greg. Only Patch # 13 is affected.
Alex Ng (6):
Drivers: hv: utils: Fix the mapping between host version and protocol
to use
Drivers: hv: balloon: Disable hot add when CONFIG_MEMORY_HOT
From: Alex Ng
If the guest does not support memory hotplugging, it should respond to
the host with zero pages added and successful result code. This signals
to the host that hotplugging is not supported and the host will avoid
sending future hot-add requests.
Signed-off-by: Alex Ng
Signed-off-b
From: Alex Ng
Adding log messages to help troubleshoot error cases and transaction
handling.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c | 25 +++--
1 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/hv/hv_snap
From: Alex Ng
Increase the timeout of backup operations. When system is under I/O load,
it needs more time to freeze. These timeout values should also match the
host timeout values more closely.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_snapshot.c |8 ++-
From: Alex Ng
Balloon driver was only printing the size of the info blob and not the
actual content. This fixes it so that the info blob (max page count as
configured in Hyper-V) is printed out.
Signed-off-by: Alex Ng
Signed-off-by: K. Y. Srinivasan
---
drivers/hv/hv_balloon.c |9 +++-
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