vDPA is an independent subsystem, so use a dedicated entry for that.
Signed-off-by: Jason Wang
---
MAINTAINERS | 10 --
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 4e2698cc7e23..314398f0e276 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
Cc: Eli Cohen
Signed-off-by: Jason Wang
---
MAINTAINERS | 6 ++
1 file changed, 6 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 314398f0e276..ed1851413fcc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18186,6 +18186,12 @@ S: Maintained
F: drivers/vdpa/
F
ccess to iommu iotlb")
Signed-off-by: Michael S. Tsirkin
Acked-by: Jason Wang
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index df3224b138ee..604d9d25ca47 100644
--- a/dr
. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:29:44AM +0800, Jason Wang wrote:
This patch introduce a config op to get valid iova range from the vDPA
device.
Signed-off-by: Jason Wang
---
include/linux/vdpa.h | 14 ++
1 file changed, 14 insertions(+)
diff --git a/include/linux/vdpa.h b
On 2020/8/7 上午11:37, Jason Wang wrote:
On 2020/8/7 上午3:18, Alex Dewar wrote:
In alloc_inout() in net/mlx5_vnet.c, there are a few places where memory
is allocated to *in and *out, but only the values of in and out are
null-checked (i.e. there is a missing dereference). Fix this.
Addresses
;Null pointer dereference")
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Signed-off-by: Colin Ian King
Acked-by: Jason Wang
---
drivers/vdpa/mlx5/net/mlx5_vnet.c | 13 ++---
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git
t;Uninitialized variables")
Signed-off-by: Alex Dewar
Acked-by: Jason Wang
---
drivers/vdpa/mlx5/core/mr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/vdpa/mlx5/core/mr.c b/drivers/vdpa/mlx5/core/mr.c
index f5dec0274133..ef1c550f8266 100644
--- a/drivers
On 2020/7/23 下午5:12, Jason Wang wrote:
We ignore the err of requesting config interrupt, fix this.
Fixes: e7991f376a4d ("ifcvf: implement config interrupt in IFCVF")
Cc: Zhu Lingshan
Signed-off-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_main.c | 4
1 file changed, 4
INULL)")
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Signed-off-by: Alex Dewar
Acked-by: Jason Wang
---
drivers/vdpa/mlx5/net/mlx5_vnet.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/vdpa/mlx5/net/mlx5_vn
On 2020/8/6 下午1:58, Michael S. Tsirkin wrote:
On Thu, Aug 06, 2020 at 11:37:38AM +0800, Jason Wang wrote:
On 2020/8/5 下午7:45, Michael S. Tsirkin wrote:
#define virtio_cread(vdev, structname, member, ptr) \
do
On 2020/8/6 下午8:29, Michael S. Tsirkin wrote:
On Thu, Aug 06, 2020 at 03:03:55PM +0300, Eli Cohen wrote:
On Wed, Aug 05, 2020 at 08:51:56AM -0400, Michael S. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:29:44AM +0800, Jason Wang wrote:
This patch introduce a config op to get valid iova range
On 2020/8/6 下午8:10, Eli Cohen wrote:
On Wed, Jun 17, 2020 at 06:29:44AM +0300, Jason Wang wrote:
This patch introduce a config op to get valid iova range from the vDPA
device.
Signed-off-by: Jason Wang
---
include/linux/vdpa.h | 14 ++
1 file changed, 14 insertions(+)
diff
On 2020/8/6 下午6:00, Michael S. Tsirkin wrote:
On Thu, Aug 06, 2020 at 03:27:38PM +0800, Jason Wang wrote:
On 2020/8/6 下午1:53, Michael S. Tsirkin wrote:
On Thu, Aug 06, 2020 at 11:23:05AM +0800, Jason Wang wrote:
On 2020/8/5 下午7:40, Michael S. Tsirkin wrote:
On Wed, Aug 05, 2020 at 02:14
On 2020/8/6 下午1:53, Michael S. Tsirkin wrote:
On Thu, Aug 06, 2020 at 11:23:05AM +0800, Jason Wang wrote:
On 2020/8/5 下午7:40, Michael S. Tsirkin wrote:
On Wed, Aug 05, 2020 at 02:14:07PM +0800, Jason Wang wrote:
On 2020/8/4 上午5:00, Michael S. Tsirkin wrote:
Some legacy guests just assume
On 2020/8/5 下午7:45, Michael S. Tsirkin wrote:
#define virtio_cread(vdev, structname, member, ptr) \
do {\
might_sleep(); \
/* Must
On 2020/8/5 下午8:58, Michael S. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:29:47AM +0800, Jason Wang wrote:
This patch introduces a new ioctl for vhost-vdpa device that can
report the iova range by the device. For device that depends on
platform IOMMU, we fetch the iova range via
On 2020/8/5 下午8:55, Michael S. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:29:46AM +0800, Jason Wang wrote:
In order to let userspace work correctly, get_iova_range() is a must
for the device that has its own DMA translation logic.
I guess you mean for a device.
However in absence of ths op
On 2020/8/5 下午8:51, Michael S. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:29:44AM +0800, Jason Wang wrote:
This patch introduce a config op to get valid iova range from the vDPA
device.
Signed-off-by: Jason Wang
---
include/linux/vdpa.h | 14 ++
1 file changed, 14 insertions
On 2020/8/5 下午8:06, Michael S. Tsirkin wrote:
On Wed, Aug 05, 2020 at 02:21:07PM +0800, Jason Wang wrote:
On 2020/8/4 上午5:00, Michael S. Tsirkin wrote:
VDPA sim accesses config space as native endian - this is
wrong since it's a modern device and actually uses LE.
It only supports modern
On 2020/8/5 下午7:40, Michael S. Tsirkin wrote:
On Wed, Aug 05, 2020 at 02:14:07PM +0800, Jason Wang wrote:
On 2020/8/4 上午5:00, Michael S. Tsirkin wrote:
Some legacy guests just assume features are 0 after reset.
We detect that config space is accessed before features are
set and set features
Add support library for mlx5 VDPA implementation
vdpa/mlx5: Add shared memory registration code
vdpa/mlx5: Add VDPA driver for supported mlx5 devices
Jason Wang (5):
vhost-vdpa: refine ioctl pre-processing
vhost: generialize backend features setting/getting
vhost-vdpa: support get/
On 2020/8/5 上午12:20, Eli Cohen wrote:
Hi Michael,
please note that this series depends on mlx5 core device driver patches
in mlx5-next branch in
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git.
git pull git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git
the driver.
Currently, only VFs are supported. In subsequent patches we will have
devlink support to control which VF is used for VDPA and which function
is used for regular networking.
Reviewed-by: Parav Pandit
Signed-off-by: Eli Cohen
---
Acked-by: Jason Wang
On 2020/8/5 上午12:20, Eli Cohen wrote:
Modify get_vq_state() so it returns an error code. In case of hardware
acceleration, the available index may be retrieved from the device, an
operation that can possibly fail.
Reviewed-by: Parav Pandit
Signed-off-by: Eli Cohen
Acked-by: Jason Wang
On 2020/8/4 上午4:58, Michael S. Tsirkin wrote:
Currently all config space fields are of the type __uXX.
This confuses people and some drivers (notably vdpa)
access them using CPU endian-ness - which only
works well for legacy or LE platforms.
Update virtio_cread/virtio_cwrite macros to allow
On 2020/8/4 上午5:00, Michael S. Tsirkin wrote:
VDPA sim accesses config space as native endian - this is
wrong since it's a modern device and actually uses LE.
It only supports modern guests so we could punt and
just force LE, but let's use the full virtio APIs since people
tend to copy/paste
On 2020/8/4 上午5:00, Michael S. Tsirkin wrote:
Some legacy guests just assume features are 0 after reset.
We detect that config space is accessed before features are
set and set features to 0 automatically.
Note: some legacy guests might not even access config space, if this is
reported in the
ll_packed(_vq, last_used_idx) :
virtqueue_poll_split(_vq, last_used_idx);
Acked-by: Jason Wang
y: Yi Wang
Acked-by: Jason Wang
---
drivers/virtio/virtio_pci_modern.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/virtio/virtio_pci_modern.c
b/drivers/virtio/virtio_pci_modern.c
index db93cedd262f..9bdc6f68221f 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/driv
pasim: vDPA device simulator")
Cc: sta...@vger.kernel.org
Signed-off-by: Max Gurtovoy
Signed-off-by: Jason Wang
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 31 +++
1 file changed, 27 insertions(+), 4 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/dr
: warning: incorrect type in argument 2 (different
address spaces)
drivers/net/tun.c:3296:42:expected struct tun_prog **prog_p
drivers/net/tun.c:3296:42:got struct tun_prog [noderef] __rcu **
Reported-by: Michael S. Tsirkin
Signed-off-by: Jason Wang
---
drivers/net/tun.c | 2 +-
1 file
o_has_feature(vb->vdev, VIRTIO_F_VERSION_1))
+ vb->cmd_id_received_cache = le32_to_cpu((__force
__le32)vb->cmd_id_received_cache);
+ }
return vb->cmd_id_received_cache;
}
Acked-by: Jason Wang
On 2020/7/28 下午2:40, Jason Wang wrote:
On 2020/7/28 下午2:32, Eli Cohen wrote:
On Tue, Jul 28, 2020 at 02:18:16PM +0800, Jason Wang wrote:
On 2020/7/28 下午2:05, Eli Cohen wrote:
Hi Michael,
please note that this series depends on mlx5 core device driver
patches
in mlx5-next branch in
git
On 2020/7/28 下午2:32, Eli Cohen wrote:
On Tue, Jul 28, 2020 at 02:18:16PM +0800, Jason Wang wrote:
On 2020/7/28 下午2:05, Eli Cohen wrote:
Hi Michael,
please note that this series depends on mlx5 core device driver patches
in mlx5-next branch in
git://git.kernel.org/pub/scm/linux/kernel/git
ror code
vdpa/mlx5: Add hardware descriptive header file
vdpa/mlx5: Add support library for mlx5 VDPA implementation
vdpa/mlx5: Add shared memory registration code
vdpa/mlx5: Add VDPA driver for supported mlx5 devices
Jason Wang (2):
vhost-vdpa: support batch updating
vdpa_sim:
IFCVF")
Cc: Zhu Lingshan
Signed-off-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_base.h | 2 +-
drivers/vdpa/ifcvf/ifcvf_main.c | 5 +++--
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h
index f4554412e607..29
We ignore the err of requesting config interrupt, fix this.
Fixes: e7991f376a4d ("ifcvf: implement config interrupt in IFCVF")
Cc: Zhu Lingshan
Signed-off-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_main.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/vdpa/ifcvf/if
ion
8. Avoid call put_device() since this is not a pci device driver.
Looks good to me.
Acked-by: Jason Wang
On 2020/7/20 下午3:14, Eli Cohen wrote:
Modify get_vq_state() so it returns an error code. In case of hardware
acceleration, the available index may be retrieved from the device, an
operation that can possibly fail.
Reviewed-by: Parav Pandit
Signed-off-by: Eli Cohen
Acked-by: Jason Wang
On 2020/7/20 下午3:14, Eli Cohen wrote:
Fix documentation to match actual function prototypes.
Reviewed-by: Parav Pandit
Signed-off-by: Eli Cohen
Acked-by: Jason Wang
---
drivers/vhost/iotlb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost
On 2020/7/20 下午7:16, Eugenio Pérez wrote:
On Mon, Jul 20, 2020 at 11:27 AM Michael S. Tsirkin wrote:
On Thu, Jul 16, 2020 at 07:16:27PM +0200, Eugenio Perez Martin wrote:
On Fri, Jul 10, 2020 at 7:58 AM Michael S. Tsirkin wrote:
On Fri, Jul 10, 2020 at 07:39:26AM +0200, Eugenio Perez
On 2020/7/17 上午1:16, Eugenio Perez Martin wrote:
On Fri, Jul 10, 2020 at 7:58 AM Michael S. Tsirkin wrote:
On Fri, Jul 10, 2020 at 07:39:26AM +0200, Eugenio Perez Martin wrote:
How about playing with the batch size? Make it a mod parameter instead
of the hard coded 64, and measure for all
to emulate
a software control virtqueue.
- we don't do it in virtio-vDPA driver
So remove this limitation.
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 37 -
1 file changed, 37 deletions(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index
On 2020/7/16 下午6:25, Eli Cohen wrote:
On Thu, Jul 16, 2020 at 05:35:18PM +0800, Jason Wang wrote:
On 2020/7/16 下午4:21, Eli Cohen wrote:
On Thu, Jul 16, 2020 at 04:11:00PM +0800, Jason Wang wrote:
On 2020/7/16 下午3:23, Eli Cohen wrote:
Currently, get_vq_state() is used only to pass
On 2020/7/19 上午3:49, Eli Cohen wrote:
On Fri, Jul 17, 2020 at 04:57:29PM +0800, Jason Wang wrote:
Looks like checking intialized is enough. Will fix this.
+
+static void mlx5_vdpa_set_vq_ready(struct vdpa_device *vdev, u16 idx, bool
ready)
+{
+ struct mlx5_vdpa_dev *mvdev = to_mvdev
On 2020/7/16 下午7:54, Eli Cohen wrote:
On Thu, Jul 16, 2020 at 05:14:32PM +0800, Jason Wang wrote:
+static void suspend_vqs(struct mlx5_vdpa_net *ndev)
+{
+ int i;
+
+ for (i = 0; i < MLX5_MAX_SUPPORTED_VQS; i++)
+ suspend_vq(ndev, >vqs[i]);
In teardown_virt
On 2020/7/16 下午4:21, Eli Cohen wrote:
On Thu, Jul 16, 2020 at 04:11:00PM +0800, Jason Wang wrote:
On 2020/7/16 下午3:23, Eli Cohen wrote:
Currently, get_vq_state() is used only to pass the available index value
of a vq. Extend the struct to return status on the VQ to the caller.
For now
On 2020/7/16 下午4:28, Eli Cohen wrote:
On Thu, Jul 16, 2020 at 04:13:21PM +0800, Jason Wang wrote:
On 2020/7/16 下午3:23, Eli Cohen wrote:
Add code to support registering guest's memory region for the device.
It would be better to use "userspace" memory here since vhost-vDPA
cou
On 2020/7/16 下午3:23, Eli Cohen wrote:
Add a front end VDPA driver that registers in the VDPA bus and provides
networking to a guest. The VDPA driver creates the necessary resources
on the VF it is driving such that data path will be offloaded.
Notifications are being communicated through the
On 2020/7/16 下午3:23, Eli Cohen wrote:
Add code to support registering guest's memory region for the device.
It would be better to use "userspace" memory here since vhost-vDPA could
be used by e.g dpdk application on the host in the future.
Thanks
On 2020/7/16 下午3:23, Eli Cohen wrote:
Currently, get_vq_state() is used only to pass the available index value
of a vq. Extend the struct to return status on the VQ to the caller.
For now, define VQ_STATE_NOT_READY. In the future it will be extended to
include other infomration.
Modify
On 2020/7/16 下午3:23, Eli Cohen wrote:
Fix documentation to match actual function prototypes.
Reviewed-by: Parav Pandit
Signed-off-by: Eli Cohen
Acked-by: Jason Wang
---
drivers/vhost/iotlb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost
On 2020/7/16 下午1:42, Michael S. Tsirkin wrote:
On Wed, Jul 15, 2020 at 10:02:32PM +0800, Jason Wang wrote:
On 2020/7/15 下午9:58, Michael S. Tsirkin wrote:
VDPA sim stores config space as native endian, but that
is wrong: modern guests expect LE.
I coded up the following to fix it up
On 2020/7/15 下午9:58, Michael S. Tsirkin wrote:
VDPA sim stores config space as native endian, but that
is wrong: modern guests expect LE.
I coded up the following to fix it up, but it is wrong too:
vdpasim_create is called before guest features are known.
So what should we do? New ioctl to
On 2020/7/15 下午5:50, Michael S. Tsirkin wrote:
On Wed, Jul 15, 2020 at 10:31:09AM +0200, Pierre Morel wrote:
If protected virtualization is active on s390, the virtio queues are
not accessible to the host, unless VIRTIO_F_IOMMU_PLATFORM has been
negotiated. Use the new
changed
please can I get back your acked-by with these changes?
Yes.
Acked-by: Jason Wang
Thanks
2) Rewording for warning messages
Regards,
Pierre
Pierre Morel (2):
virtio: let arch validate VIRTIO features
s390: virtio: PV needs VIRTIO I/O device protection
arch/s390/mm
-by: Jason Wang
); \
+ mb(); \
+ } \
+} while (0) \
struct virtio_device;
struct virtqueue;
Acked-by: Jason Wang
virtio_scsi_ctrl_tmf_req);
Acked-by: Jason Wang
_active, sizeof(vb->cmd_id_active));
err = virtqueue_add_outbuf(vq, , 1, >cmd_id_active, GFP_KERNEL);
Acked-by: Jason Wang
On 2020/7/10 下午1:39, Eugenio Perez Martin wrote:
It is allocated 1 thread in lcore 1 (F_THREAD=1) which belongs to the
same NUMA as testpmd. Actually, it is the testpmd master core, so it
should be a good idea to move it to another lcore of the same NUMA
node.
Is this enough for pktgen to
On 2020/7/10 上午1:37, Michael S. Tsirkin wrote:
On Thu, Jul 09, 2020 at 06:46:13PM +0200, Eugenio Perez Martin wrote:
On Wed, Jul 1, 2020 at 4:10 PM Jason Wang wrote:
On 2020/7/1 下午9:04, Eugenio Perez Martin wrote:
On Wed, Jul 1, 2020 at 2:40 PM Jason Wang wrote:
On 2020/7/1 下午6:43
On 2020/7/8 下午9:13, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/8/2020 4:52 PM, Jason Wang wrote:
On 2020/7/7 下午10:45, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/7/2020 3:17 PM, Jason Wang wrote:
On 2020/7/6 下午5:32, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/3/2020 12:46 PM, Jason
On 2020/7/7 下午10:45, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/7/2020 3:17 PM, Jason Wang wrote:
On 2020/7/6 下午5:32, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/3/2020 12:46 PM, Jason Wang wrote:
On 2020/7/2 下午9:35, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/2/2020 3:40 PM, Jason
On 2020/7/6 下午5:32, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/3/2020 12:46 PM, Jason Wang wrote:
On 2020/7/2 下午9:35, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/2/2020 3:40 PM, Jason Wang wrote:
On 2020/7/2 下午5:51, Michael S. Tsirkin wrote:
On Thu, Jul 02, 2020 at 01:51:21PM +0530
On 2020/7/2 下午9:35, Kishon Vijay Abraham I wrote:
Hi Jason,
On 7/2/2020 3:40 PM, Jason Wang wrote:
On 2020/7/2 下午5:51, Michael S. Tsirkin wrote:
On Thu, Jul 02, 2020 at 01:51:21PM +0530, Kishon Vijay Abraham I wrote:
This series enhances Linux Vhost support to enable SoC-to-SoC
On 2020/7/2 下午5:51, Michael S. Tsirkin wrote:
On Thu, Jul 02, 2020 at 01:51:21PM +0530, Kishon Vijay Abraham I wrote:
This series enhances Linux Vhost support to enable SoC-to-SoC
communication over MMIO. This series enables rpmsg communication between
two SoCs using both PCIe RC<->EP and
tform: Clarify that IRQ 0 is invalid")
Signed-off-by: Bjorn Helgaas
Cc: Michael S. Tsirkin
Cc: Jason Wang
Cc: virtualizat...@lists.linux-foundation.org
---
drivers/virtio/virtio_mmio.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/virtio/virtio_mmio.c
On 2020/7/1 下午9:04, Eugenio Perez Martin wrote:
On Wed, Jul 1, 2020 at 2:40 PM Jason Wang wrote:
On 2020/7/1 下午6:43, Eugenio Perez Martin wrote:
On Tue, Jun 23, 2020 at 6:15 PM Eugenio Perez Martin
wrote:
On Mon, Jun 22, 2020 at 6:29 PM Michael S. Tsirkin wrote:
On Mon, Jun 22, 2020
On 2020/7/1 下午6:43, Eugenio Perez Martin wrote:
On Tue, Jun 23, 2020 at 6:15 PM Eugenio Perez Martin
wrote:
On Mon, Jun 22, 2020 at 6:29 PM Michael S. Tsirkin wrote:
On Mon, Jun 22, 2020 at 06:11:21PM +0200, Eugenio Perez Martin wrote:
On Mon, Jun 22, 2020 at 5:55 PM Michael S. Tsirkin
.
Signed-off-by: Jason Wang
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 40 +---
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index c7334cc65bb2..a7a0962ed8a8 100644
--- a/drivers/vdpa
require set_map(), no behavior changes.
This capability is advertised via VHOST_BACKEND_F_IOTLB_BATCH capability.
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 30 +++---
include/uapi/linux/vhost.h | 2 ++
include/uapi/linux/vhost_types.h | 11
This patch makes userspace can get and set backend features to
vhost-vdpa.
Signed-off-by: Cindy Lu
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index db4c9cb44c61
Move the backend features setting/getting from net.c to vhost.c to be
reused by vhost-vdpa.
Signed-off-by: Jason Wang
---
drivers/vhost/net.c | 18 ++
drivers/vhost/vhost.c | 15 +++
drivers/vhost/vhost.h | 2 ++
3 files changed, 19 insertions(+), 16 deletions
Switch to use 'switch' to make the codes more easier to be extended.
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 77a0c9fb6cc3..db4c9cb44c61 100644
--- a/drivers
to get best performance.
Note, this only impacts the devices that want its own DMA
translation (less times of set_map() call). For other type of devices,
there's no changes in the behaviour.
Changes from RFCV1:
- tweak the comments per Michael's request
Jason Wang (5):
vhost-vdpa: refi
On 2020/6/30 下午1:29, Eli Cohen wrote:
Fix documentation to match actual function prototypes
"end" used instead of "last". Fix that.
Signed-off-by: Eli Cohen
---
Acked-by: Jason Wang
Thanks
drivers/vhost/iotlb.c | 4 ++--
1 file changed, 2 insertions(+), 2 dele
On 2020/6/29 下午11:49, Michael S. Tsirkin wrote:
On Mon, Jun 29, 2020 at 05:26:03PM +0800, Jason Wang wrote:
On 2020/6/28 下午5:58, Michael S. Tsirkin wrote:
On Thu, Jun 18, 2020 at 01:56:25PM +0800, Jason Wang wrote:
This patches extend the vhost IOTLB API to accept batch updating hints
form
On 2020/6/28 下午5:58, Michael S. Tsirkin wrote:
On Thu, Jun 18, 2020 at 01:56:25PM +0800, Jason Wang wrote:
This patches extend the vhost IOTLB API to accept batch updating hints
form userspace. When userspace wants update the device IOTLB in a
batch, it may do:
1) Write vhost_iotlb_msg
k
* @vdev: the device
*/
-static inline bool virtio_has_iommu_quirk(const struct virtio_device *vdev)
+static inline bool virtio_has_dma_quirk(const struct virtio_device *vdev)
{
/*
* Note the reverse polarity of the quirk feature (compared to most
Acked-by: Jason Wang
* other features), this is for compatibility with legacy systems.
*/
- return !virtio_has_feature(vdev, VIRTIO_F_IOMMU_PLATFORM);
+ return !virtio_has_feature(vdev, VIRTIO_F_ACCESS_PLATFORM);
}
static inline bool virtio_is_little_endian(struct virtio_device *vdev)
Acked-by: Jason Wang
On 2020/6/23 下午3:00, Eugenio Perez Martin wrote:
On Tue, Jun 23, 2020 at 4:51 AM Jason Wang wrote:
On 2020/6/23 上午12:00, Michael S. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:19:26AM +0800, Jason Wang wrote:
On 2020/6/11 下午7:34, Michael S. Tsirkin wrote:
static void
On 2020/6/23 上午12:00, Michael S. Tsirkin wrote:
On Wed, Jun 17, 2020 at 11:19:26AM +0800, Jason Wang wrote:
On 2020/6/11 下午7:34, Michael S. Tsirkin wrote:
static void vhost_vq_free_iovecs(struct vhost_virtqueue *vq)
{
kfree(vq->descs);
@@ -394,6 +400,9 @@ static l
On 2020/6/20 上午2:07, Eugenio Perez Martin wrote:
On Mon, Jun 15, 2020 at 2:28 PM Eugenio Perez Martin
wrote:
On Thu, Jun 11, 2020 at 5:22 PM Konrad Rzeszutek Wilk
wrote:
On Thu, Jun 11, 2020 at 07:34:19AM -0400, Michael S. Tsirkin wrote:
As testing shows no performance change, switch to
r provides access to virtio-mem paravirtualized memory
devices, allowing to hotplug and hotunplug memory.
Acked-by: Jason Wang
.
Signed-off-by: Jason Wang
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 40 +---
1 file changed, 37 insertions(+), 3 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index c7334cc65bb2..a7a0962ed8a8 100644
--- a/drivers/vdpa
require set_map(), no behavior changes.
This capability is advertised via VHOST_BACKEND_F_IOTLB_BATCH capability.
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 30 +++---
include/uapi/linux/vhost.h | 2 ++
include/uapi/linux/vhost_types.h | 7
This patch makes userspace can get and set backend features to
vhost-vdpa.
Signed-off-by: Cindy Lu
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index db4c9cb44c61
Move the backend features setting/getting from net.c to vhost.c to be
reused by vhost-vdpa.
Signed-off-by: Jason Wang
---
drivers/vhost/net.c | 18 ++
drivers/vhost/vhost.c | 15 +++
drivers/vhost/vhost.h | 2 ++
3 files changed, 19 insertions(+), 16 deletions
Switch to use 'switch' to make the codes more easier to be extended.
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 77a0c9fb6cc3..db4c9cb44c61 100644
--- a/drivers
to get best performance.
Note, this only impact the devices that want its own DMA
translation. For other type of device, no changes in behaviour.
Please reivew.
Jason Wang (5):
vhost-vdpa: refine ioctl pre-processing
vhost: generialize backend features setting/getting
vhost-vdpa: sup
In order to let userspace work correctly, get_iova_range() is a must
for the device that has its own DMA translation logic.
Signed-off-by: Jason Wang
---
drivers/vdpa/vdpa.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c
index de211ef3738c
.
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 27 +++
include/uapi/linux/vhost.h | 4
include/uapi/linux/vhost_types.h | 5 +
3 files changed, 36 insertions(+)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 77a0c9fb6cc3
This patch implements get_iova_range method for vdpa_sim. Since
vdpa_sim is a software device, simply advertise a [0ULL, ~0ULL] range.
Signed-off-by: Jason Wang
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 11 +++
1 file changed, 11 insertions(+)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c
is enabled, determine a valid guest
address width
Please review.
Thanks
Jason Wang (4):
vdpa: introduce config op to get valid iova range
vdpa_sim: implement get_iova_range bus operation
vdpa: get_iova_range() is mandatory for device specific DMA
translation
vhost: vdpa: report iova
This patch introduce a config op to get valid iova range from the vDPA
device.
Signed-off-by: Jason Wang
---
include/linux/vdpa.h | 14 ++
1 file changed, 14 insertions(+)
diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 239db794357c..b7633ed2500c 100644
--- a/include
On 2020/6/11 下午7:34, Michael S. Tsirkin wrote:
static void vhost_vq_free_iovecs(struct vhost_virtqueue *vq)
{
kfree(vq->descs);
@@ -394,6 +400,9 @@ static long vhost_dev_alloc_iovecs(struct vhost_dev *dev)
for (i = 0; i < dev->nvqs; ++i) {
vq = dev->vqs[i];
VIRTIO_F_IOMMU_PLATFORM.
Signed-off-by: Pierre Morel
Acked-by: Jason Wang
---
arch/s390/mm/init.c | 6 ++
drivers/virtio/virtio.c | 9 +
include/linux/virtio.h | 2 ++
3 files changed, 17 insertions(+)
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 87b2d024e75a
On 2020/6/12 下午7:38, Pierre Morel wrote:
On 2020-06-12 11:21, Pierre Morel wrote:
On 2020-06-11 05:10, Jason Wang wrote:
On 2020/6/10 下午9:11, Pierre Morel wrote:
Protected Virtualisation protects the memory of the guest and
do not allow a the host to access all of its memory.
Let's
On 2020/6/11 下午5:06, Michael S. Tsirkin wrote:
On Thu, Jun 11, 2020 at 11:02:57AM +0800, Jason Wang wrote:
On 2020/6/10 下午7:05, Michael S. Tsirkin wrote:
+EXPORT_SYMBOL_GPL(vhost_get_vq_desc);
/* Reverse the effect of vhost_get_vq_desc. Useful for error handling. */
void
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