在 2021/3/31 下午4:11, Michael S. Tsirkin 写道:
On Mon, Mar 29, 2021 at 11:06:09AM +0200, Eric Dumazet wrote:
On Mon, Mar 29, 2021 at 10:52 AM Xuan Zhuo wrote:
On Wed, 13 Jan 2021 08:18:19 -0800, Eric Dumazet wrote:
From: Eric Dumazet
Both virtio net and napi_get_frags() allocate skbs
with a
在 2021/3/26 下午2:56, Yongji Xie 写道:
On Fri, Mar 26, 2021 at 2:16 PM Jason Wang wrote:
在 2021/3/26 下午1:14, Yongji Xie 写道:
+ }
+ map->bounce_page = page;
+
+ /* paired with vduse_domain_map_page() */
+ smp_mb();
So this is suspicious. It's better to explain like, we n
在 2021/3/25 下午3:38, Yongji Xie 写道:
On Thu, Mar 25, 2021 at 12:53 PM Jason Wang wrote:
在 2021/3/24 下午3:39, Yongji Xie 写道:
On Wed, Mar 24, 2021 at 11:54 AM Jason Wang wrote:
在 2021/3/15 下午1:37, Xie Yongji 写道:
This implements an MMU-based IOMMU driver to support mapping
kernel dma buffer
在 2021/3/24 下午4:55, Yongji Xie 写道:
On Wed, Mar 24, 2021 at 12:43 PM Jason Wang wrote:
在 2021/3/15 下午1:37, Xie Yongji 写道:
This VDUSE driver enables implementing vDPA devices in userspace.
Both control path and data path of vDPA devices will be able to
be handled in userspace.
In the
在 2021/3/24 下午3:39, Yongji Xie 写道:
On Wed, Mar 24, 2021 at 11:54 AM Jason Wang wrote:
在 2021/3/15 下午1:37, Xie Yongji 写道:
This implements an MMU-based IOMMU driver to support mapping
kernel dma buffer into userspace. The basic idea behind it is
treating MMU (VA->PA) as IOMMU (IOVA->PA
在 2021/3/15 下午1:37, Xie Yongji 写道:
This patch introduces a new ioctl VDUSE_INJECT_CONFIG_IRQ
to support injecting config interrupt.
Signed-off-by: Xie Yongji
I suggest to squash this into path 9.
Other looks good.
Thanks
---
drivers/vdpa/vdpa_user/vduse_dev.c | 24 ++
在 2021/3/15 下午1:37, Xie Yongji 写道:
This VDUSE driver enables implementing vDPA devices in userspace.
Both control path and data path of vDPA devices will be able to
be handled in userspace.
In the control path, the VDUSE driver will make use of message
mechnism to forward the config operation
在 2021/3/15 下午1:37, Xie Yongji 写道:
This implements an MMU-based IOMMU driver to support mapping
kernel dma buffer into userspace. The basic idea behind it is
treating MMU (VA->PA) as IOMMU (IOVA->PA). The driver will set
up MMU mapping instead of IOMMU mapping for the DMA transfer so
that the u
mapping. And corresponding vma->vm_file and offset will be
also passed as an opaque pointer.
Suggested-by: Jason Wang
Signed-off-by: Xie Yongji
---
drivers/vdpa/ifcvf/ifcvf_main.c | 2 +-
drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 +-
drivers/vdpa/vdpa.c | 9 +++-
drivers/v
在 2021/3/15 下午1:37, Xie Yongji 写道:
The upcoming patch is going to support VA mapping. So let's
factor out the logic of PA mapping firstly to make the code
more readable.
Suggested-by: Jason Wang
Signed-off-by: Xie Yongji
Acked-by: Jason Wang
While at it, I think it's better
在 2021/3/15 下午1:37, Xie Yongji 写道:
Use vhost_dev->mutex to protect vhost device iotlb from
concurrent access.
Fixes: 4c8cf318("vhost: introduce vDPA-based backend")
Signed-off-by: Xie Yongji
Acked-by: Jason Wang
Please cc stable for next version.
Thanks
---
drivers
"block",
"mgmtdev": "vdpasim_blk",
"vendor_id": 0,
"max_vqs": 1,
"max_vq_size": 256
}
}
}
# Delete the vDPA device after its use
$
failures.
Signed-off-by: Xie Yongji
Signed-off-by: Stefano Garzarella
Acked-by: Jason Wang
---
drivers/vhost/vdpa.c | 6 +-
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 7ae4080e57d8..850ed4b62942 100644
--- a/drivers
在 2021/3/16 上午12:34, Stefano Garzarella 写道:
Let's use the new 'get_config_size()' callback available instead of
using the 'virtio_id' to get the size of the device config space.
Signed-off-by: Stefano Garzarella
Acked-by: Jason Wang
---
drivers/vhost/vdpa
在 2021/3/16 上午12:34, Stefano Garzarella 写道:
This new callback is used to get the size of the configuration space
of vDPA devices.
Signed-off-by: Stefano Garzarella
Acked-by: Jason Wang
---
include/linux/vdpa.h | 4
drivers/vdpa/ifcvf/ifcvf_main.c | 6
f (pdev->device < 0x1040)
+ ret = pdev->subsystem_device;
+ else
+ ret = pdev->device - 0x1040;
+
+ return ret;
}
It would be better to keep the comment.
But anyway
Acked-by: Jason Wang
static u32 ifcvf_vdpa_get_vendor_id(struct vdpa_device *vdpa_dev)
在 2021/3/15 下午3:45, Zhu Lingshan 写道:
static u32 ifcvf_vdpa_get_device_id(struct vdpa_device *vdpa_dev)
{
- return VIRTIO_ID_NET;
+ struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
+ u32 ret = -EOPNOTSUPP;
+
+ if (ifcvf_probed_virtio_net(vf))
+ ret = VIRTIO_I
ERR(ifcvf->pdev, "VIRTIO_F_ACCESS_PLATFORM not
negotiated\n");
Should be "is not negotiated".
Otherwise:
Acked-by: Jason Wang
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset,
Lingshan
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_base.c | 12 ++--
drivers/vdpa/ifcvf/ifcvf_base.h | 2 ++
drivers/vdpa/ifcvf/ifcvf_main.c | 2 ++
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf
在 2021/3/15 下午3:44, Zhu Lingshan 写道:
This commit removes the version number string, using kernel
version is enough.
Signed-off-by: Zhu Lingshan
Reviewed-by: Leon Romanovsky
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_main.c | 2 --
1 file changed, 2 deletions(-)
diff --git
在 2021/3/15 下午3:44, Zhu Lingshan 写道:
IFCVF driver probes multiple types of devices now,
to distinguish the original device driven by IFCVF
from others, it is renamed as "N3000".
Signed-off-by: Zhu Lingshan
Acked-by: Jason Wang
If you want to have a general driver, you proba
在 2021/3/15 下午3:44, Zhu Lingshan 写道:
This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-net
for vDPA
Signed-off-by: Zhu Lingshan
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_base.h | 5 +
drivers/vdpa/ifcvf/ifcvf_main.c | 5 +
2 files changed, 10 insertions
在 2021/3/15 下午3:44, Zhu Lingshan 写道:
In this commit, ifcvf_get_vendor_id() will return
a device specific vendor id of the probed pci device
than a hard code.
Signed-off-by: Zhu Lingshan
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_main.c | 5 -
1 file changed, 4 insertions
_le(vq);
vhost_disable_cross_endian(vq);
And so user_be is used before being set.
To fix that, reverse the lines order as there is no other dependency
between them.
Signed-off-by: Laurent Vivier
Acked-by: Jason Wang
---
drivers/vhost/vhost.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
ethtool_sprintf(&p, "tx_queue_%u_%s", i,
+ virtnet_sq_stats_desc[j].desc);
}
break;
}
Acked-by: Jason Wang
On 2021/3/12 2:40 下午, Zhu, Lingshan wrote:
On 3/12/2021 1:52 PM, Jason Wang wrote:
On 2021/3/11 3:19 下午, Zhu, Lingshan wrote:
On 3/11/2021 2:20 PM, Jason Wang wrote:
On 2021/3/11 12:16 下午, Zhu Lingshan wrote:
On 3/11/2021 11:20 AM, Jason Wang wrote:
On 2021/3/10 5:00 下午, Zhu
is case to avoid to use an invalid pointer in
other functions such as vhost_vdpa_config_put().
Fixes: 776f395004d8 ("vhost_vdpa: Support config interrupt in vdpa")
Cc: lingshan@intel.com
Cc: sta...@vger.kernel.org
Signed-off-by: Stefano Garzarella
Acked-by: Jason Wang
---
d
y_SYSCALL_64_after_hwframe+0x44/0xae
Fixes: 776f395004d8 ("vhost_vdpa: Support config interrupt in vdpa")
Cc: lingshan@intel.com
Cc: sta...@vger.kernel.org
Signed-off-by: Stefano Garzarella
Acked-by: Jason Wang
---
drivers/vhost/vdpa.c | 4 +++-
1 file changed, 3 insertion
On 2021/3/11 3:19 下午, Zhu, Lingshan wrote:
On 3/11/2021 2:20 PM, Jason Wang wrote:
On 2021/3/11 12:16 下午, Zhu Lingshan wrote:
On 3/11/2021 11:20 AM, Jason Wang wrote:
On 2021/3/10 5:00 下午, Zhu Lingshan wrote:
vDPA requres VIRTIO_F_ACCESS_PLATFORM as a must, this commit
examines this
On 2021/3/11 12:16 下午, Zhu Lingshan wrote:
On 3/11/2021 11:20 AM, Jason Wang wrote:
On 2021/3/10 5:00 下午, Zhu Lingshan wrote:
vDPA requres VIRTIO_F_ACCESS_PLATFORM as a must, this commit
examines this when set features.
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_base.c
On 2021/3/11 12:23 下午, Zhu Lingshan wrote:
On 3/11/2021 11:25 AM, Jason Wang wrote:
On 2021/3/10 5:00 下午, Zhu Lingshan wrote:
IFCVF driver probes multiple types of devices now,
to distinguish the original device driven by IFCVF
from others, it is renamed as "N3000".
Signed-o
On 2021/3/11 12:21 下午, Zhu Lingshan wrote:
On 3/11/2021 11:23 AM, Jason Wang wrote:
On 2021/3/10 5:00 下午, Zhu Lingshan wrote:
In this commit, ifcvf_get_vendor_id() will return
a device specific vendor id of the probed pci device
than a hard code.
Signed-off-by: Zhu Lingshan
On 2021/3/10 5:00 下午, Zhu Lingshan wrote:
IFCVF driver probes multiple types of devices now,
to distinguish the original device driven by IFCVF
from others, it is renamed as "N3000".
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_base.h | 8
drivers/vdpa/ifcvf/ifcvf_main
On 2021/3/10 5:00 下午, Zhu Lingshan wrote:
In this commit, ifcvf_get_vendor_id() will return
a device specific vendor id of the probed pci device
than a hard code.
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_main.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff
On 2021/3/10 5:00 下午, Zhu Lingshan wrote:
vDPA requres VIRTIO_F_ACCESS_PLATFORM as a must, this commit
examines this when set features.
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_base.c | 8
drivers/vdpa/ifcvf/ifcvf_base.h | 1 +
drivers/vdpa/ifcvf/ifcvf_main.c | 5
On 2021/2/23 7:50 下午, Xie Yongji wrote:
+
+ switch (cmd) {
+ case VDUSE_IOTLB_GET_FD: {
+ struct vduse_iotlb_entry entry;
+ struct vhost_iotlb_map *map;
+ struct vdpa_map_file *map_file;
+ struct file *f = NULL;
+
+
On 2021/3/9 10:31 上午, Xuan Zhuo wrote:
On Tue, 9 Mar 2021 10:17:16 +0800, Jason Wang wrote:
On 2021/3/8 4:52 下午, Xuan Zhuo wrote:
The number of queues implemented by many virtio backends is limited,
especially some machines have a large number of CPUs. In this case, it
is often impossible
On 2021/3/9 10:28 上午, Zhu, Lingshan wrote:
On 3/9/2021 10:23 AM, Jason Wang wrote:
On 2021/3/8 4:35 下午, Zhu Lingshan wrote:
This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-net
for vDPA
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_base.h | 5 +
drivers/vdpa
On 2021/3/8 4:35 下午, Zhu Lingshan wrote:
This commit removes the version number string, using kernel
version is enough.
Signed-off-by: Zhu Lingshan
---
Acked-by: Jason Wang
drivers/vdpa/ifcvf/ifcvf_main.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/vdpa/ifcvf
On 2021/3/8 4:35 下午, Zhu Lingshan wrote:
IFCVF driver probes multiple types of devices now,
to distinguish the original device driven by IFCVF
from others, it is renamed as "N3000".
Signed-off-by: Zhu Lingshan
Acked-by: Jason Wang
You probably need to rename the drive
On 2021/3/8 4:35 下午, Zhu Lingshan wrote:
This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-net
for vDPA
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_base.h | 5 +
drivers/vdpa/ifcvf/ifcvf_main.c | 5 +
2 files changed, 10 insertions(+)
diff --git a/drivers/vdpa
On 2021/3/8 4:35 下午, Zhu Lingshan wrote:
In this commit, ifcvf_get_vendor_id() will return
a device specific vendor id of the probed pci device
than a hard code.
Signed-off-by: Zhu Lingshan
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_main.c | 5 -
1 file changed, 4
(suggested by Jason Wang)
v6: 1. use __netif_tx_acquire()/__netif_tx_release(). (suggested by Jason Wang)
2. add note for why not lock. (suggested by Jason Wang)
3. Use variable 'flag' to record with or without locked. It is not safe to
use curr_queue_pairs in "vir
On 2021/3/8 3:16 下午, Yongji Xie wrote:
On Mon, Mar 8, 2021 at 3:02 PM Jason Wang wrote:
On 2021/3/8 12:50 下午, Yongji Xie wrote:
On Mon, Mar 8, 2021 at 11:04 AM Jason Wang wrote:
On 2021/3/5 4:12 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:37 PM Jason Wang wrote:
On 2021/3/5 3:27 下午
On 2021/3/8 1:43 下午, Xuan Zhuo wrote:
On Mon, 8 Mar 2021 11:41:03 +0800, Jason Wang wrote:
On 2021/3/5 6:29 下午, Xuan Zhuo wrote:
The number of queues implemented by many virtio backends is limited,
especially some machines have a large number of CPUs. In this case, it
is often impossible to
On 2021/3/8 1:05 下午, Yongji Xie wrote:
On Mon, Mar 8, 2021 at 11:52 AM Jason Wang wrote:
On 2021/3/8 11:45 上午, Yongji Xie wrote:
On Mon, Mar 8, 2021 at 11:17 AM Jason Wang wrote:
On 2021/3/5 3:59 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:27 PM Jason Wang wrote:
On 2021/3/5 3:13 下
On 2021/3/8 12:50 下午, Yongji Xie wrote:
On Mon, Mar 8, 2021 at 11:04 AM Jason Wang wrote:
On 2021/3/5 4:12 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:37 PM Jason Wang wrote:
On 2021/3/5 3:27 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:01 PM Jason Wang wrote:
On 2021/3/5 2:36 下午
On 2021/3/8 11:45 上午, Yongji Xie wrote:
On Mon, Mar 8, 2021 at 11:17 AM Jason Wang wrote:
On 2021/3/5 3:59 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:27 PM Jason Wang wrote:
On 2021/3/5 3:13 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 2:52 PM Jason Wang wrote:
On 2021/3/5 2:15 下午
Wang)
2. add note for why not lock. (suggested by Jason Wang)
3. Use variable 'flag' to record with or without locked. It is not safe to
use curr_queue_pairs in "virtnet_put_xdp_sq", because it may changed
after
"virtnet_get_xdp_sq".
v5
On 2021/3/5 3:59 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:27 PM Jason Wang wrote:
On 2021/3/5 3:13 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 2:52 PM Jason Wang wrote:
On 2021/3/5 2:15 下午, Yongji Xie wrote:
Sorry if I've asked this before.
But what's the reason for m
On 2021/3/5 4:12 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:37 PM Jason Wang wrote:
On 2021/3/5 3:27 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:01 PM Jason Wang wrote:
On 2021/3/5 2:36 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 11:42 AM Jason Wang wrote:
On 2021/3/5 11:30 上午
On 2021/3/5 10:19 下午, Zhu Lingshan wrote:
This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-net
for vDPA.
C5000X-PL vendor id 0x1AF4, device id 0x1000,
subvendor id 0x8086, sub device id 0x0001
To distinguish C5000X-PL from other ifcvf driven devices,
the original ifcvf device is named
ifcvf_vdpa_get_vendor_id(struct vdpa_device *vdpa_dev)
{
- return IFCVF_SUBSYS_VENDOR_ID;
+ struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev);
+ struct pci_dev *pdev = adapter->pdev;
+
+ return pdev->subsystem_vendor;
}
Acked-by: Jason Wang
stat
On 2021/3/5 3:27 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 3:01 PM Jason Wang wrote:
On 2021/3/5 2:36 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 11:42 AM Jason Wang wrote:
On 2021/3/5 11:30 上午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 11:05 AM Jason Wang wrote:
On 2021/3/4 4:58 下
On 2021/3/5 3:13 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 2:52 PM Jason Wang wrote:
On 2021/3/5 2:15 下午, Yongji Xie wrote:
Sorry if I've asked this before.
But what's the reason for maintaing a dedicated IOTLB here? I think we
could reuse vduse_dev->iommu since the devi
On 2021/3/1 11:22 上午, Xuan Zhuo wrote:
The number of queues implemented by many virtio backends is limited,
especially some machines have a large number of CPUs. In this case, it
is often impossible to allocate a separate queue for
XDP_TX/XDP_REDIRECT, then xdp cannot be loaded to work, even xd
On 2021/3/5 2:36 下午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 11:42 AM Jason Wang wrote:
On 2021/3/5 11:30 上午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 11:05 AM Jason Wang wrote:
On 2021/3/4 4:58 下午, Yongji Xie wrote:
On Thu, Mar 4, 2021 at 2:59 PM Jason Wang wrote:
On 2021/2/23 7:50
On 2021/3/5 11:37 上午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 11:11 AM Jason Wang wrote:
On 2021/3/4 4:19 下午, Yongji Xie wrote:
On Thu, Mar 4, 2021 at 3:30 PM Jason Wang wrote:
On 2021/2/23 7:50 下午, Xie Yongji wrote:
Add a parameter for the ioctl VDUSE_INJECT_VQ_IRQ to support
On 2021/3/5 11:30 上午, Yongji Xie wrote:
On Fri, Mar 5, 2021 at 11:05 AM Jason Wang wrote:
On 2021/3/4 4:58 下午, Yongji Xie wrote:
On Thu, Mar 4, 2021 at 2:59 PM Jason Wang wrote:
On 2021/2/23 7:50 下午, Xie Yongji wrote:
This patch introduces a workqueue to support injecting
virtqueue&#
On 2021/3/4 1:12 下午, Yongji Xie wrote:
On Thu, Mar 4, 2021 at 12:21 PM Jason Wang wrote:
On 2021/2/23 7:50 下午, Xie Yongji wrote:
This implements a MMU-based IOMMU driver to support mapping
kernel dma buffer into userspace. The basic idea behind it is
treating MMU (VA->PA) as IOMMU (I
On 2021/3/4 4:05 下午, Yongji Xie wrote:
On Thu, Mar 4, 2021 at 2:27 PM Jason Wang wrote:
On 2021/2/23 7:50 下午, Xie Yongji wrote:
This VDUSE driver enables implementing vDPA devices in userspace.
Both control path and data path of vDPA devices will be able to
be handled in userspace.
In the
On 2021/3/4 4:19 下午, Yongji Xie wrote:
On Thu, Mar 4, 2021 at 3:30 PM Jason Wang wrote:
On 2021/2/23 7:50 下午, Xie Yongji wrote:
Add a parameter for the ioctl VDUSE_INJECT_VQ_IRQ to support
injecting virtqueue's interrupt to the specified cpu.
How userspace know which CPU is this ir
On 2021/3/4 4:58 下午, Yongji Xie wrote:
On Thu, Mar 4, 2021 at 2:59 PM Jason Wang wrote:
On 2021/2/23 7:50 下午, Xie Yongji wrote:
This patch introduces a workqueue to support injecting
virtqueue's interrupt asynchronously. This is mainly
for performance considerations which makes sur
On 2021/3/4 9:50 下午, Cornelia Huck wrote:
On Thu, 4 Mar 2021 16:24:16 +0800
Jason Wang wrote:
On 2021/3/3 4:29 下午, Cornelia Huck wrote:
On Wed, 3 Mar 2021 12:01:01 +0800
Jason Wang wrote:
On 2021/3/2 8:08 下午, Cornelia Huck wrote:
On Mon, 1 Mar 2021 11:51:08 +0800
Jason Wang wrote
On 2021/3/3 4:29 下午, Cornelia Huck wrote:
On Wed, 3 Mar 2021 12:01:01 +0800
Jason Wang wrote:
On 2021/3/2 8:08 下午, Cornelia Huck wrote:
On Mon, 1 Mar 2021 11:51:08 +0800
Jason Wang wrote:
On 2021/3/1 5:25 上午, Michael S. Tsirkin wrote:
On Fri, Feb 26, 2021 at 04:19:16PM +0800, Jason
On 2021/2/23 7:50 下午, Xie Yongji wrote:
Add a parameter for the ioctl VDUSE_INJECT_VQ_IRQ to support
injecting virtqueue's interrupt to the specified cpu.
How userspace know which CPU is this irq for? It looks to me we need to
do it at different level.
E.g introduce some API in sys to all
On 2021/2/23 7:50 下午, Xie Yongji wrote:
This patch introduces a workqueue to support injecting
virtqueue's interrupt asynchronously. This is mainly
for performance considerations which makes sure the push()
and pop() for used vring can be asynchronous.
Do you have pref numbers for this patch
On 2021/2/23 7:50 下午, Xie Yongji wrote:
VDUSE (vDPA Device in Userspace) is a framework to support
implementing software-emulated vDPA devices in userspace. This
document is intended to clarify the VDUSE design and usage.
Signed-off-by: Xie Yongji
---
Documentation/userspace-api/index.rst |
On 2021/2/23 7:50 下午, Xie Yongji wrote:
This VDUSE driver enables implementing vDPA devices in userspace.
Both control path and data path of vDPA devices will be able to
be handled in userspace.
In the control path, the VDUSE driver will make use of message
mechnism to forward the config opera
On 2021/2/23 7:50 下午, Xie Yongji wrote:
This implements a MMU-based IOMMU driver to support mapping
kernel dma buffer into userspace. The basic idea behind it is
treating MMU (VA->PA) as IOMMU (IOVA->PA). The driver will set
up MMU mapping instead of IOMMU mapping for the DMA transfer so
that t
mapping. And corresponding vma->vm_file and offset will be
also passed as an opaque pointer.
Suggested-by: Jason Wang
Signed-off-by: Xie Yongji
---
drivers/vdpa/ifcvf/ifcvf_main.c | 2 +-
drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 +-
drivers/vdpa/vdpa.c | 9 +++-
driv
On 2021/3/2 5:51 下午, Michael S. Tsirkin wrote:
On Tue, Mar 02, 2021 at 04:14:18AM -0500, Jason Wang wrote:
When CAP_IPC_LOCK is set we should not check locked memory against
rlimit as what has been implemented in mlock().
Signed-off-by: Jason Wang
Indeed and it's not just
On 2021/3/2 5:47 下午, Michael S. Tsirkin wrote:
On Mon, Mar 01, 2021 at 11:56:50AM +0800, Jason Wang wrote:
On 2021/3/1 5:34 上午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 10:24:41AM -0800, Si-Wei Liu wrote:
Detecting it isn't enough though, we will need a new ioctl to notif
ility.
"
Fixes: 4c8cf31885f6 ("vhost: introduce vDPA-based backend")
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index ef688c8c0e0e..e93572e2e344 100644
--- a/
When CAP_IPC_LOCK is set we should not check locked memory against
rlimit as what has been implemented in mlock().
Signed-off-by: Jason Wang
---
drivers/vhost/vdpa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index
On 2021/2/23 7:50 下午, Xie Yongji wrote:
Add an opaque pointer for DMA mapping.
Suggested-by: Jason Wang
Signed-off-by: Xie Yongji
Acked-by: Jason Wang
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 6 +++---
drivers/vhost/vdpa.c | 2 +-
include/linux/vdpa.h | 2
On 2021/2/23 7:50 下午, Xie Yongji wrote:
Add an opaque pointer for vhost IOTLB. And introduce
vhost_iotlb_add_range_ctx() to accept it.
Suggested-by: Jason Wang
Signed-off-by: Xie Yongji
Acked-by: Jason Wang
---
drivers/vhost/iotlb.c | 20
include/linux
On 2021/2/23 7:50 下午, Xie Yongji wrote:
Increase the recursion depth of eventfd_signal() to 1. This
is the maximum recursion depth we have found so far.
Signed-off-by: Xie Yongji
Acked-by: Jason Wang
It might be useful to explain how/when we can reach for this condition.
Thanks
On 2021/2/23 7:50 下午, Xie Yongji wrote:
Use vhost_dev->mutex to protect vhost device iotlb from
concurrent access.
Fixes: 4c8cf318("vhost: introduce vDPA-based backend")
Signed-off-by: Xie Yongji
---
drivers/vhost/vdpa.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/vhost/v
t;)
Signed-off-by: Eli Cohen
Acked-by: Jason Wang
---
drivers/vdpa/mlx5/net/mlx5_vnet.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c
b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index dc7031132fff..7d21b857a94a 100644
--- a/drivers/vdp
On 2021/3/1 5:34 上午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 10:24:41AM -0800, Si-Wei Liu wrote:
Detecting it isn't enough though, we will need a new ioctl to notify
the kernel that it's a legacy guest. Ugh :(
Well, although I think adding an ioctl is doable, may I know what the use
On 2021/3/1 5:30 上午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 05:30:37PM +0800, Jason Wang wrote:
On 2021/2/24 4:43 下午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 04:26:43PM +0800, Jason Wang wrote:
Basically on first guest access QEMU would tell kernel whether
On 2021/3/1 5:25 上午, Michael S. Tsirkin wrote:
On Fri, Feb 26, 2021 at 04:19:16PM +0800, Jason Wang wrote:
On 2021/2/26 2:53 上午, Michael S. Tsirkin wrote:
On Thu, Feb 25, 2021 at 12:36:07PM +0800, Jason Wang wrote:
On 2021/2/24 7:12 下午, Cornelia Huck wrote:
On Wed, 24 Feb 2021 17:29:07
On 2021/2/26 2:53 上午, Michael S. Tsirkin wrote:
On Thu, Feb 25, 2021 at 12:36:07PM +0800, Jason Wang wrote:
On 2021/2/24 7:12 下午, Cornelia Huck wrote:
On Wed, 24 Feb 2021 17:29:07 +0800
Jason Wang wrote:
On 2021/2/23 6:58 下午, Cornelia Huck wrote:
On Tue, 23 Feb 2021 18:31:07 +0800
Jason
On 2021/2/24 7:12 下午, Cornelia Huck wrote:
On Wed, 24 Feb 2021 17:29:07 +0800
Jason Wang wrote:
On 2021/2/23 6:58 下午, Cornelia Huck wrote:
On Tue, 23 Feb 2021 18:31:07 +0800
Jason Wang wrote:
On 2021/2/23 6:04 下午, Cornelia Huck wrote:
On Tue, 23 Feb 2021 17:46:20 +0800
Jason Wang
On 2021/2/23 6:17 下午, Jason Wang wrote:
On 2021/2/23 6:01 下午, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 05:46:20PM +0800, Jason Wang wrote:
On 2021/2/23 下午5:25, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 09:09:28AM -0800, Si-Wei Liu wrote:
On 2/21/2021 8:14 PM, Jason Wang
On 2021/2/24 4:43 下午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 04:26:43PM +0800, Jason Wang wrote:
Basically on first guest access QEMU would tell kernel whether
guest is using the legacy or the modern interface.
E.g. virtio_pci_config_read/virtio_pci_config_write will
On 2021/2/23 6:58 下午, Cornelia Huck wrote:
On Tue, 23 Feb 2021 18:31:07 +0800
Jason Wang wrote:
On 2021/2/23 6:04 下午, Cornelia Huck wrote:
On Tue, 23 Feb 2021 17:46:20 +0800
Jason Wang wrote:
On 2021/2/23 下午5:25, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 09:09:28AM -0800, Si
On 2021/2/24 2:47 下午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 08:45:20AM +0200, Eli Cohen wrote:
On Wed, Feb 24, 2021 at 12:17:58AM -0500, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 11:20:01AM +0800, Jason Wang wrote:
On 2021/2/24 3:35 上午, Si-Wei Liu wrote:
On 2/23/2021 5
On 2021/2/24 2:46 下午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 02:04:36PM +0800, Jason Wang wrote:
On 2021/2/24 1:04 下午, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 11:35:57AM -0800, Si-Wei Liu wrote:
On 2/23/2021 5:26 AM, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 10
On 2021/2/24 1:04 下午, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 11:35:57AM -0800, Si-Wei Liu wrote:
On 2/23/2021 5:26 AM, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 10:03:57AM +0800, Jason Wang wrote:
On 2021/2/23 9:12 上午, Si-Wei Liu wrote:
On 2/21/2021 11:34 PM, Michael S
On 2021/2/24 1:17 下午, Michael S. Tsirkin wrote:
On Wed, Feb 24, 2021 at 11:20:01AM +0800, Jason Wang wrote:
On 2021/2/24 3:35 上午, Si-Wei Liu wrote:
On 2/23/2021 5:26 AM, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 10:03:57AM +0800, Jason Wang wrote:
On 2021/2/23 9:12 上午, Si-Wei Liu
On 2021/2/24 3:35 上午, Si-Wei Liu wrote:
On 2/23/2021 5:26 AM, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 10:03:57AM +0800, Jason Wang wrote:
On 2021/2/23 9:12 上午, Si-Wei Liu wrote:
On 2/21/2021 11:34 PM, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 12:14:17PM +0800, Jason
On 2021/2/23 6:04 下午, Cornelia Huck wrote:
On Tue, 23 Feb 2021 17:46:20 +0800
Jason Wang wrote:
On 2021/2/23 下午5:25, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 09:09:28AM -0800, Si-Wei Liu wrote:
On 2/21/2021 8:14 PM, Jason Wang wrote:
On 2021/2/19 7:54 下午, Si-Wei Liu wrote
On 2021/2/23 6:01 下午, Michael S. Tsirkin wrote:
On Tue, Feb 23, 2021 at 05:46:20PM +0800, Jason Wang wrote:
On 2021/2/23 下午5:25, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 09:09:28AM -0800, Si-Wei Liu wrote:
On 2/21/2021 8:14 PM, Jason Wang wrote:
On 2021/2/19 7:54 下午, Si-Wei Liu
On 2021/2/23 下午5:26, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 08:05:26AM +0200, Eli Cohen wrote:
On Sun, Feb 21, 2021 at 04:52:05PM -0500, Michael S. Tsirkin wrote:
On Sun, Feb 21, 2021 at 04:44:37PM +0200, Eli Cohen wrote:
On Fri, Feb 19, 2021 at 06:54:58AM -0500, Si-Wei Liu wrote:
On 2021/2/23 下午5:25, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 09:09:28AM -0800, Si-Wei Liu wrote:
On 2/21/2021 8:14 PM, Jason Wang wrote:
On 2021/2/19 7:54 下午, Si-Wei Liu wrote:
Commit 452639a64ad8 ("vdpa: make sure set_features is invoked
for legacy") made an exception
name vdpa0
3. Show vdpa devices
$ vdpa dev show
vdpa0: type network mgmtdev pci/:3b:00.1 vendor_id max_vqs 16 \
max_vq_size 256
Signed-off-by: Eli Cohen
Reviewed-by: Parav Pandit
Acked-by: Jason Wang
---
v0->v1:
set mgtdev->ndev NULL on dev delete
drivers/vdpa/ml
On 2021/2/23 1:09 上午, Si-Wei Liu wrote:
On 2/21/2021 8:14 PM, Jason Wang wrote:
On 2021/2/19 7:54 下午, Si-Wei Liu wrote:
Commit 452639a64ad8 ("vdpa: make sure set_features is invoked
for legacy") made an exception for legacy guests to reset
features to 0, when config space i
On 2021/2/23 9:12 上午, Si-Wei Liu wrote:
On 2/21/2021 11:34 PM, Michael S. Tsirkin wrote:
On Mon, Feb 22, 2021 at 12:14:17PM +0800, Jason Wang wrote:
On 2021/2/19 7:54 下午, Si-Wei Liu wrote:
Commit 452639a64ad8 ("vdpa: make sure set_features is invoked
for legacy") made an exc
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