> -Original Message-
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Saturday, January 2, 2016 12:30
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; step...@networkplumber.org;
> net...@vger.kernel.org; linux-ker...@vger.kernel.org; driverdev-
> de...@l
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Tuesday, January 5, 2016 20:31
> ...
> > To get the payload of hvsock, we need raw=0 to skip the level-1 header
> > (i.e., struct vmpacket_descriptor desc) and we also need to skip the
> > level-2 header (i.e., struct vmpipe_proto_header
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Tuesday, January 5, 2016 20:39
> ...
> > +/*
> > + * vmbus_sendpacket_hvsock - Send the hvsock payload 'buf' of a length
> > 'len'
> > + */
> > +int vmbus_sendpacket_hvsock(struct vmbus_channel *channel, void *buf,
> u32 len)
> > ...
>
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> > diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
> >
> > +/* hvsock related definitions */
> > +enum hvsock_event {
> > + /* The host application is close()-ing the connection */
> > + HVSOCK_RESCIND_CHANNEL,
> > +};
>
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Tuesday, January 5, 2016 17:52
>
> Just some minor nitpicks below -- I have to admit I didn't test the feature.
>
> [..skip..]
>
> > +
> > + if (sk->sk_err) {
> > + ret = -sk->sk_err;
> > + goto out_wait_error;
>
This is for the recent kcm driver, which introduces AF_KCM(41) in
b7ac4eb(kcm: Kernel Connection Multiplexor module).
Signed-off-by: Dexuan Cui
Cc: Signed-off-by: Tom Herbert
---
net/core/sock.c | 9 ++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/net/core/sock.c b/net
mt_service
The patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Vitaly Kuznetsov
---
I posted the V6 of the hv_sock patchset in Jan:
[PATCH V6 0/8] in
This is for the hv_sock driver, which introduces AF_HYPERV(42).
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
---
net/core/sock.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/core/sock.c b/net/core/sock.c
index 7e73c26..51ff
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Monday, March 21, 2016 23:28
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org; de...@linuxdriverproject.org; o...@aepfle.de;
> a...@canonical.com; jasow...@redhat.
Hi Vitaly,
We got the below warning once -- it's pretty hard to repro it.
I think the cause may be: before the daemon is terminated, we can successfully
"rmmod hv_utils" -- as a result all the code/data segments of the module
shouldn't be accessed any more, but in the kernel we still has a dangli
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Friday, March 25, 2016 0:11
> To: Dexuan Cui
> Cc: driverdev-devel@linuxdriverproject.org; Chris Valean (Cloudbase Solutions
> SRL) ; KY Srinivasan
> Subject: Re: KVP daemon/module race on module unloading
>
mt_service
The patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Vitaly Kuznetsov
---
MAINTAINERS |2 +
include/linux/hyperv.h
cind callback (Thank Vitaly!)
- avoided the introduction of new VMBUS driver APIs vmbus_sendpacket_hvsock()
and vmbus_recvpacket_hvsock() and used vmbus_sendpacket()/vmbus_recvpacket()
in the higher level (i.e., the vmsock driver). Thank Vitaly!
Changes since v6 (http://lkml.iu.edu/hypermail/lin
> From: Joe Perches [mailto:j...@perches.com]
> Sent: Thursday, April 7, 2016 19:30
> To: Dexuan Cui ; gre...@linuxfoundation.org;
> da...@davemloft.net; net...@vger.kernel.org; linux-ker...@vger.kernel.org;
> de...@linuxdriverproject.org; o...@aepfle.de; a...@canonical.com;
> j
rnel/1601.3/01813.html)
- only a few minor changes of coding style and comments
Changes since v7
- a few minor changes of coding style: thanks, Joe Perches!
- added some lines of comments about GUID/UUID before the struct sockaddr_hv.
Dexuan Cui (1):
hv_sock: introduce Hyper-V Sockets
MAINTAINERS
mt_service
The patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Vitaly Kuznetsov
---
MAINTAINERS |2 +
include/linux/hyperv.h
> From: Joe Perches [mailto:j...@perches.com]
> Sent: Friday, April 8, 2016 9:15
> On Thu, 2016-04-07 at 18:36 -0700, Dexuan Cui wrote:
> > diff --git a/include/net/af_hvsock.h b/include/net/af_hvsock.h
> []
> > +#define VMBUS_RINGBUFFER_SIZE_HVSOCK_RECV (5 *
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Thursday, April 14, 2016 10:30
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org; de...@linuxdriverproject.org; o...@aepfle.de;
> a...@canonical.com; jasow.
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Saturday, April 23, 2016 0:21
> To: de...@linuxdriverproject.org
> Cc: linux-ker...@vger.kernel.org; KY Srinivasan ; Haiyang
> Zhang ; Dexuan Cui
> Subject: [PATCH] tools: hv: lsvmbus: add pci pass-through UUID
>
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Monday, April 25, 2016 19:06
> To: de...@linuxdriverproject.org
> Cc: linux-ker...@vger.kernel.org; KY Srinivasan ; Haiyang
> Zhang ; Dexuan Cui
> Subject: [PATCH v2] tools: hv: lsvmbus: add pci pass-through UUID
>
> From: Cathy Avery [mailto:cav...@redhat.com]
> Sent: Wednesday, April 27, 2016 0:19
> To: Dexuan Cui ; gre...@linuxfoundation.org;
> da...@davemloft.net; net...@vger.kernel.org; linux-ker...@vger.kernel.org;
> de...@linuxdriverproject.org; o...@aepfle.de; Jason Wang
> ; KY Sr
ed the code according to suggestions from Cathy Avery: split big
functions into small ones, set .setsockopt and getsockopt to
sock_no_setsockopt/sock_no_getsockopt
- inline'd some small list helper functions
Dexuan Cui (2):
hv_sock: introduce Hyper-V Sockets
net: add the AF_HYPERV entri
mt_service
The patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Vitaly Kuznetsov
Cc: Cathy Avery
---
MAINTAINERS |2 +
include/l
This is for the hv_sock driver, which introduces AF_HYPERV(42).
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Vitaly Kuznetsov
Cc: Cathy Avery
---
net/core/sock.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/net/core/sock.c
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Saturday, May 7, 2016 1:04
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org; de...@linuxdriverproject.org; o...@aepfle.de;
> a...@canonical.com; jasow.
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Sunday, May 8, 2016 1:41
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org; de...@linuxdriverproject.org; o...@aepfle.de;
> a...@canonical.com; jasow...@redhat.com;
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Monday, May 9, 2016 1:45
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org; de...@linuxdriverproject.org; o...@aepfle.de;
> a...@canonical.com; jasow...@redhat.com;
.
the buffers are allocated by kmalloc() in __hvsock_create() now.
- minimized the sizes of the send/recv buffers and the vmbus ringbuffers.
Dexuan Cui (1):
hv_sock: introduce Hyper-V Sockets
MAINTAINERS |2 +
include/linux/hyperv.h | 14 +
include/linu
mt_service
The patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Vitaly Kuznetsov
Cc: Cathy Avery
---
You can also get the patch on this branch:
http
mt_service
The patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Vitaly Kuznetsov
Cc: Cathy Avery
---
You can also get the patch on this branch:
http
s_open() fails, hvsock_close_connection() can do nothing and we
count on vmbus_onoffer_rescind() -> vmbus_device_unregister() to clean up
the device.
6) some stylistic modificiation.
Dexuan Cui (1):
hv_sock: introduce Hyper-V Sockets
MAINTAINERS |2 +
include/linux/hyperv.h
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Monday, May 16, 2016 1:16
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org; de...@linuxdriverproject.org; o...@aepfle.de;
> a...@canonical.com; jasow.
ported-by: Rolf Neugebauer
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 3 +++
drivers/hv/channel_mgmt.c | 20 +---
include/linux/hyperv.h| 3 +++
3 files changed, 15 insertions(+), 11 deletions(-)
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 5
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Tuesday, May 17, 2016 16:15
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; linux-ker...@vger.kernel.org; driverdev-
> de...@linuxdriverproject.org; o...@aepfle.de; a...@canonical.com;
> jasow...@redhat.com; KY Sr
> From: devel [mailto:driverdev-devel-boun...@linuxdriverproject.org] On Behalf
> Of Dexuan Cui
> >
> > Do we need to do tasklet_schedule() to make sure there are no events
> > pending? This is probably not a big issue as some other event will
> > trigger scheduling b
ported-by: Rolf Neugebauer
Cc: Vitaly Kuznetsov
Signed-off-by: Dexuan Cui
---
v2: added tasklet_schedule() after tasklet_enable(). Thanks, Vitaly!
drivers/hv/channel.c | 5 +
drivers/hv/channel_mgmt.c | 24 +---
include/linux/hyperv.h| 3 +++
3 files changed
> From: devel [mailto:driverdev-devel-boun...@linuxdriverproject.org] On Behalf
> Of Dexuan Cui
> Sent: Tuesday, May 17, 2016 10:46
> To: David Miller
> Cc: o...@aepfle.de; gre...@linuxfoundation.org; jasow...@redhat.com;
> linux-ker...@vger.kernel.org; j...@perches.com; net.
> From: David Miller [mailto:da...@davemloft.net]
> Sent: Thursday, May 19, 2016 12:13
> To: Dexuan Cui
> Cc: KY Srinivasan ; o...@aepfle.de;
> gre...@linuxfoundation.org; jasow...@redhat.com; linux-
> ker...@vger.kernel.org; j...@perches.com; net...@vger.kernel.org;
> a
> From: devel [mailto:driverdev-devel-boun...@linuxdriverproject.org] On
> Behalf Of Dexuan Cui
> Sent: Wednesday, May 18, 2016 11:44
> To: gre...@linuxfoundation.org; linux-ker...@vger.kernel.org; driverdev-
> de...@linuxdriverproject.org; o...@aepfle.de; a...@canonical.com;
> j
the per-cpu and the global lists.
Reported-by: Rolf Neugebauer
Cc: Vitaly Kuznetsov
Signed-off-by: Dexuan Cui
---
v2: added tasklet_schedule() after tasklet_enable(). Thanks, Vitaly!
v3: I shouldn't have moved percpu_channel_deq()
from hv_process_channel_removal() to vmbus_close_int
> From: Vitaly Kuznetsov [mailto:vkuzn...@redhat.com]
> Sent: Wednesday, June 1, 2016 0:27
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; linux-ker...@vger.kernel.org; driverdev-
> de...@linuxdriverproject.org; o...@aepfle.de; a...@canonical.com;
> jasow...@redhat.com; KY Sr
> >> [5.472143] BUG: unable to handle kernel paging request at
> >> 00079fff5288
> >> [5.477107] IP: [] vmbus_onoffer+0x311/0x570
> >> [hv_vmbus]
> >> ...
> >> Vitaly
> >
> > I can't reproduce the panic somehow, but I did find a bug in
> vmbus_process_offer():
> >
> > "hv_event_taskle
the per-cpu and the global lists.
Reported-by: Rolf Neugebauer
Signed-off-by: Dexuan Cui
---
v2: added tasklet_schedule() after tasklet_enable(). Thanks, Vitaly!
v3: I shouldn't have moved percpu_channel_deq()
from hv_process_channel_removal() to vmbus_close_internal(): the
channel couldn&#
ike.notify_recv_init
.notify_recv_pre_block
.notify_recv_pre_dequeue
.notify_recv_post_dequeue
.notify_send_init
.notify_send_pre_block
.notify_send_pre_enqueue
.notify_send_post_enqueue
etc.
So I think we'd better introduce a new address fami
This will be used by the coming net/hvsock driver.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 753dbad..e4867a7 100644
--- a/include/linux/hyperv.h
+++ b/include/linux
A helper function is also added.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 7 +++
1 file changed, 7 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index e4867a7..c0eddd7 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -235,6
When the hvsock channel's outbound ringbuffer is full (i.e.,
hv_ringbuffer_write() returns -EAGAIN), we should avoid the unnecessary
signaling the host.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drive
Only the coming hv_sock driver has a "true" value for this flag.
We treat the hvsock offers/channels as special VMBus devices.
Since the hv_sock driver handles all the hvsock offers/channels, we need to
tweak vmbus_match() for hv_sock driver, so we introduce this flag.
Signed-off-by:
A function to send the type of message is also added.
The coming net/hvsock driver will use this function to proactively request
the host to offer a VMBus channel for a new hvsock connection.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 15 +++
drivers/hv
The hvsock driver needs this API to release all the resources related
to the channel.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel_mgmt.c | 33 -
drivers/hv/connection.c | 4 ++--
include/linux/hyperv.h| 2 ++
3 files changed, 32 insertions(+), 7
This will be used by the coming hv_sock driver.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel_mgmt.c | 11 +++
include/linux/hyperv.h| 9 +
2 files changed, 20 insertions(+)
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 4611b50..b782944 100644
ectly by the traditional BSD-style socket APIs.
Hyper-V Socket is only available on new Windows hosts. The patch
implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
Cc: Vitaly Kuznetsov
---
MAINTA
> From: Olaf Hering [mailto:o...@aepfle.de]
> Sent: Tuesday, January 26, 2016 18:24
> To: Dexuan Cui
> Cc: gre...@linuxfoundation.org; da...@davemloft.net;
> step...@networkplumber.org; net...@vger.kernel.org; linux-
> ker...@vger.kernel.org; driverdev-devel@linuxdriv
> From: Greg KH [mailto:gre...@linuxfoundation.org]
> Sent: Monday, February 8, 2016 13:34
> To: KY Srinivasan
> Cc: linux-ker...@vger.kernel.org; de...@linuxdriverproject.org;
> o...@aepfle.de;
> a...@canonical.com; vkuzn...@redhat.com; jasow...@redhat.com; Dexuan
> Cui
> From: devel [mailto:driverdev-devel-boun...@linuxdriverproject.org] On Behalf
> Of Dexuan Cui
> Sent: Tuesday, January 26, 2016 17:40
> ...
> Dexuan Cui (8):
> Drivers: hv: vmbus: add a helper function to set a channel's pending
> send size
> Drivers: hv: vmb
d long" by mistake -- it
should
be "phys_addr_t".
As a result, Hyper-V network driver in 32-PAE Linux guest can't work again.
Fixes: "commmit 34437e67a672: x86/mm: Fix slow_virt_to_phys() to handle large
PAT bit"
Signed-off-by: Dexuan Cui
Cc: Toshi Kani
Cc: Andrew Morton
Looking forward to your comments!
Dexuan Cui (7):
Drivers: hv: vmbus: define the new offer type for Hyper-V socket
(hvsock)
Drivers: hv: vmbus: define a new VMBus message type for hvsock
Drivers: hv: vmbus: add APIs to send/recv hvsock packet and get the
r/w-ability
Drivers: hv: vm
A helper function is also added.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 7 +++
1 file changed, 7 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 30d3a1f..aa21814 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -236,6
A function to send the type of message is also added.
The coming net/hvsock driver will use this function to proactively request
the host to offer a VMBus channel for a new hvsock connection.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 15 +++
drivers/hv
This will be used by the coming net/hvsock driver.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 131 ++
drivers/hv/hyperv_vmbus.h | 4 ++
drivers/hv/ring_buffer.c | 14 +
include/linux/hyperv.h| 33
4 files
With the 2 APIs supplied by the VMBus driver, the coming net/hvsock driver
can register 2 callbacks and can know when a new hvsock connection is
offered by the host, and when a hvsock connection is being closed by the
host.
Signed-off-by: Dexuan Cui
---
drivers/hv/Makefile | 4
This will be used by the coming net/hvsock driver.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 307910b3..c52f4cb 100644
--- a/include/linux/hyperv.h
+++ b/include/linux
other directly by the traditional BSD-style socket APIs.
Hyper-V VM Sockets is only available on Windows 10 host and later. The
patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
---
MAINTAINERS |
_cb() to A, trying to set channel->onchannel_callbackto NULL;
on A, if the IPI handler happens between
"if (channel->onchannel_callback != NULL)" and invoking
channel->onchannel_callback, we'll invoke a function pointer of NULL.
This is why the patch is necessary.
Signed-off-b
Looking forward to your comments!
Dexuan Cui (7):
Drivers: hv: vmbus: define the new offer type for Hyper-V socket
(hvsock)
Drivers: hv: vmbus: define a new VMBus message type for hvsock
Drivers: hv: vmbus: add APIs to send/recv hvsock packet and get the
r/w-ability
Drivers: hv: vm
It is to fix:
hv_kvp_daemon.c:705:2: warning: format not a string literal and no format
arguments [-Wformat-security]
Signed-off-by: Dexuan Cui
---
tools/hv/hv_kvp_daemon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
> -Original Message-
> From: Paul Bolle
> Sent: Tuesday, July 7, 2015 17:38
> To: Dexuan Cui
> Subject: Re: [PATCH 6/7] hvsock: introduce Hyper-V VM Sockets feature
>
> Just two nits.
>
> On ma, 2015-07-06 at 07:47 -0700, Dexuan Cui wrote:
> > --- /dev/n
> -Original Message-
> From: Olaf Hering [mailto:o...@aepfle.de]
> Sent: Tuesday, July 7, 2015 18:10
> To: Dexuan Cui; Paul Bolle
> Cc: gre...@linuxfoundation.org; da...@davemloft.net;
> net...@vger.kernel.org; linux-ker...@vger.kernel.org; driverdev-
> de...@linu
> -Original Message-
> From: Stephen Hemminger
> Sent: Wednesday, July 8, 2015 2:31
> Subject: Re: [PATCH 6/7] hvsock: introduce Hyper-V VM Sockets feature
>
> On Mon, 6 Jul 2015 07:47:29 -0700
> Dexuan Cui wrote:
>
> > Hyper-V VM sockets (hvsock
> -Original Message-
> From: Olaf Hering
> Sent: Tuesday, July 7, 2015 18:59
> Subject: Re: [PATCH 6/7] hvsock: introduce Hyper-V VM Sockets feature
>
> On Tue, Jul 07, Dexuan Cui wrote:
>
> > OK, removing the line seems better than 'default n'
fy_recv_init
.notify_recv_pre_block
.notify_recv_pre_dequeue
.notify_recv_post_dequeue
.notify_send_init
.notify_send_pre_block
.notify_send_pre_enqueue
.notify_send_post_enqueue
etc.
So I think we'd better introduce a new address family: AF_HYPE
A function to send the type of message is also added.
The coming net/hvsock driver will use this function to proactively request
the host to offer a VMBus channel for a new hvsock connection.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 15 +++
drivers/hv
A helper function is also added.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 7 +++
1 file changed, 7 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 30d3a1f..aa21814 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -236,6
This will be used by the coming net/hvsock driver.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 131 ++
drivers/hv/hyperv_vmbus.h | 4 ++
drivers/hv/ring_buffer.c | 14 +
include/linux/hyperv.h| 33
4 files
This will be used by the coming net/hvsock driver.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 307910b3..c52f4cb 100644
--- a/include/linux/hyperv.h
+++ b/include/linux
With the 2 APIs supplied by the VMBus driver, the coming net/hvsock driver
can register 2 callbacks and can know when a new hvsock connection is
offered by the host, and when a hvsock connection is being closed by the
host.
Signed-off-by: Dexuan Cui
---
drivers/hv/Makefile | 4
other directly by the traditional BSD-style socket APIs.
Hyper-V VM Sockets is only available on Windows 10 host and later. The
patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
---
Changes since v1:
-
_cb() to A, trying to set channel->onchannel_callbackto NULL;
on A, if the IPI handler happens between
"if (channel->onchannel_callback != NULL)" and invoking
channel->onchannel_callback, we'll invoke a function pointer of NULL.
This is why the patch is necessary.
Signed-off-b
> -Original Message-
> From: Vitaly Kuznetsov
> Sent: Monday, July 13, 2015 20:19
> Subject: [PATCH] Drivers: hv: vmbus: prevent new subchannel creation on device
> shutdown
>
> When a new subchannel offer from host comes during device shutdown (e.g.
> when a netvsc/storvsc module is unloa
> From: David Miller
> Sent: Thursday, July 16, 2015 12:13
>
> From: Dexuan Cui
> Date: Tue, 14 Jul 2015 02:58:03 -0700
>
> > A helper function is also added.
> >
> > diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
> > @@ -236,6 +236,7 @@
> -Original Message-
> From: David Miller
> Sent: Thursday, July 16, 2015 12:16
>
> From: Dexuan Cui
> Date: Tue, 14 Jul 2015 02:58:56 -0700
>
> > +int vmbus_sendpacket_hvsock(struct vmbus_channel *channel, void *buf,
> u32 len)
> > +{
>
> From: David Miller
> Sent: Thursday, July 16, 2015 12:19
>
> From: Dexuan Cui
> Date: Tue, 14 Jul 2015 03:00:48 -0700
>
> > + pr_debug("hvsock_sk_destruct: called\n");
>
> Debug logging just to state that a function is called is not appropria
> -Original Message-
> From: Stefan Hajnoczi
> Sent: Thursday, July 16, 2015 23:59
> On Mon, Jul 06, 2015 at 07:39:35AM -0700, Dexuan Cui wrote:
> > Hyper-V VM Sockets (hvsock) is a byte-stream based communication
> mechanism
> > between Windowsd 10 (or later)
> From: K. Y. Srinivasan
> Sent: Friday, July 17, 2015 3:17
> Subject: [PATCH net-next 1/1] hv_netvsc: Wait for sub-channels to be processed
> during probe
> diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
> ...
> @@ -1116,6 +1127,9 @@ int rndis_filter_device_add(str
> From: K. Y. Srinivasan
> Sent: Friday, July 17, 2015 3:17
> Subject: [PATCH net-next 1/1] hv_netvsc: Wait for sub-channels to be processed
> during probe
>
> The current code returns from probe without waiting for the proper handling
> of subchannels that may be requested. If the netvsc driver w
> -Original Message-
> From: Vitaly Kuznetsov
> Sent: Friday, July 17, 2015 23:04
> To: Dexuan Cui
> Dexuan Cui writes:
>
> >> From: David Miller
> >> Sent: Thursday, July 16, 2015 12:19
> >>
> >> From: Dexuan Cui
> >> Date
> From: KY Srinivasan
> Sent: Friday, July 17, 2015 23:33
> > From: Dexuan Cui
> > Sent: Friday, July 17, 2015 3:01 AM
> > > From: K. Y. Srinivasan
> > > Sent: Friday, July 17, 2015 3:17
> > > Subject: [PATCH net-next 1/1] hv_netvsc: Wait for sub-ch
> -Original Message-
> From: deve On Behalf of K. Y. Srinivasan
> Sent: Monday, July 20, 2015 11:37
>
> From: Christopher Oo
>
> Fixes a bug where previously hv_ringbuffer_read would pass in the old
> number of bytes available to read instead of the expected old read index
> when calculat
> From: devel [mailto:driverdev-devel-bounces...linuxdriverproject.org] On
> Behalf
> Of K. Y. Srinivasan
> Sent: Monday, July 20, 2015 11:37
>
> The current Hyper-V clock source is based on the per-partition reference
> counter
> and this counter is being accessed via s synthetic MSR -
> HV_X64
cv_pre_block
.notify_recv_pre_dequeue
.notify_recv_post_dequeue
.notify_send_init
.notify_send_pre_block
.notify_send_pre_enqueue
.notify_send_post_enqueue
etc.
So I think we'd better introduce a new address family: AF_HYPERV.
Please review the patchs
This will be used by the coming net/hvsock driver.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 133 ++
drivers/hv/hyperv_vmbus.h | 4 ++
drivers/hv/ring_buffer.c | 14 +
include/linux/hyperv.h| 32 +++
4 files
This will be used by the coming net/hvsock driver.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index fda9790..47c5c1a 100644
--- a/include/linux/hyperv.h
+++ b/include/linux
With the 2 APIs supplied by the VMBus driver, the coming net/hvsock driver
can register 2 callbacks and can know when a new hvsock connection is
offered by the host, and when a hvsock connection is being closed by the
host.
Signed-off-by: Dexuan Cui
---
drivers/hv/Makefile | 4
A function to send the type of message is also added.
The coming net/hvsock driver will use this function to proactively request
the host to offer a VMBus channel for a new hvsock connection.
Signed-off-by: Dexuan Cui
---
drivers/hv/channel.c | 15 +++
drivers/hv
A helper function is also added.
Signed-off-by: Dexuan Cui
---
include/linux/hyperv.h | 7 +++
1 file changed, 7 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 30d3a1f..2ca3ac1 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -236,6
_cb() to A, trying to set channel->onchannel_callbackto NULL;
on A, if the IPI handler happens between
"if (channel->onchannel_callback != NULL)" and invoking
channel->onchannel_callback, we'll invoke a function pointer of NULL.
This is why the patch is necessary.
Signed-off-b
other directly by the traditional BSD-style socket APIs.
Hyper-V VM Sockets is only available on Windows 10 host and later. The
patch implements the necessary support in the guest side by introducing
a new socket address family AF_HYPERV.
Signed-off-by: Dexuan Cui
---
Changes since v1:
-
> From: Vitaly Kuznetsov
> Sent: Tuesday, July 21, 2015 22:07
> > diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
>> ...
> > +int vmbus_recvpacket_hvsock(struct vmbus_channel *channel, void *buffer,
> > + u32 bufferlen, u32 *buffer_actual_len)
> > +{
> > + struct vm
> From: Dan Carpenter
> Sent: Wednesday, July 22, 2015 18:36
> To: Dexuan Cui
> On Wed, Jul 22, 2015 at 10:09:10AM +0000, Dexuan Cui wrote:
> > > I'd suggest you do something like
> > >
> > > if (ret == -EAGIAIN)
> > > retur
> From: Dan Carpenter
> Sent: Thursday, July 23, 2015 18:25
> On Thu, Jul 23, 2015 at 01:10:57PM +0300, Dan Carpenter wrote:
> > In this specific case, writing it as "if (ret != 0)" caused the bug. If
> > we had written it as "if (ret) return ret;" then there are no zeroes so
> > wouldn't have bee
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