Introduce virtqueue_reset() to release all buffer inside vq.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 50
include/linux/virtio.h | 2 ++
2 files changed, 52 insertions(+)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/vi
Modify the "useless" to a more accurate "unused".
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 84129b8c3e2a..2ba60a14f557 100644
--- a/drivers/virtio
virtqueue_add_split() only supports virtual addresses, dma is completed
in virtqueue_add_split().
In some scenarios (such as the AF_XDP scenario), the memory is allocated
and DMA is completed in advance, so it is necessary for us to support
passing the DMA address to virtio core.
Signed-off-by: X
Added virtio_dma_map() to map DMA addresses for virtual memory in
advance. The purpose is to keep memory mapped across multiple add/get
buf operations.
Added virtio_dma_unmap() for unmap DMA address.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 92
These API has been introduced:
* virtio_dma_need_sync
* virtio_dma_sync_single_range_for_cpu
* virtio_dma_sync_single_range_for_device
These APIs can be used together with the premapped mechanism to sync the
DMA address.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 70 ++
virtqueue_add_packed() only supports virtual addresses, dma is completed
in virtqueue_add_packed().
In some scenarios (such as the AF_XDP scenario), the memory is allocated
and DMA is completed in advance, so it is necessary for us to support
passing the DMA address to virtio core.
Signed-off-by:
DMA-related logic is separated from the virtqueue_add_split to prepare
for subsequent support for premapped.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 219 ---
1 file changed, 152 insertions(+), 67 deletions(-)
diff --git a/drivers/virtio/virtio
Introduce virtqueue_add_inbuf_premapped() to submit premapped sgs.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 25 +
include/linux/virtio.h | 5 +
2 files changed, 30 insertions(+)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virt
DMA-related logic is separated from virtqueue_add_packed to prepare for
the subsequent support for premapped.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 150 ++-
1 file changed, 78 insertions(+), 72 deletions(-)
diff --git a/drivers/virtio/virtio
XDP socket(AF_XDP) is an excellent bypass kernel network framework. The zero
copy feature of xsk (XDP socket) needs to be supported by the driver. The
performance of zero copy is very good.
ENV: Qemu with vhost.
vhost cpu | Guest APP CPU |Guest Softirq CPU | PPS
---
Separating the logic of allocating indirect desc and checking queue
status to the upper layer function.
The proposal of this is convenient to refactor virtqueue_add_packed()
for premapped.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 29 -
1 file chang
On Tue, Feb 14, 2023 at 2:17 PM Cindy Lu wrote:
>
> While unplugging the vp_vdpa device, the kernel will crash
> The root cause is the function vp_modern_get_status() called following the
> vp_modern_remove().
This needs some tweaking, maybe it's better to say
vdpa_mgmtdev_unregister() will acces
On Tue, Feb 14, 2023 at 6:48 AM Si-Wei Liu wrote:
>
> Otherwise the virtqueue object to instate could point to invalid address
> that was unmapped from the MTT:
>
> mlx5_core :41:04.2: mlx5_cmd_out_err:782:(pid 8321):
> CREATE_GENERAL_OBJECT(0xa00) op_mod(0xd) failed, status
> bad parame
在 2023/1/31 22:53, Longpeng(Mike) 写道:
From: Longpeng
We must cleanup all memory maps when closing the vdpa fds, otherwise
some critical resources (e.g. memory, iommu map) will leaked if the
userspace exits unexpectedly (e.g. kill -9).
Sounds like a bug of the kernel, should we fix there?
T
On 2023/02/08 1:02, Frank Li wrote:
We project extending this module to support RDMA. The plan is based on
virtio-rdma[1].
It extends the virtio-net and we are plan to implement the proposed
spec based on this patch.
[1] virtio-rdma
- proposal:
https://eur01.safelinks.protection.outlook.com/?ur
Thanks for organizing the discussion.
On 2023/02/08 4:45, Frank Li wrote:
From: Frank Li
Recently more and more people are interested in PCI RC and EP connection,
especially network usage cases. I upstreamed a vntb solution last year.
But the transfer speed is not good enough. I initialized a d
On Mon, 13 Feb 2023 07:15:02 -0500, "Michael S. Tsirkin"
wrote:
> On Fri, Feb 03, 2023 at 05:09:12PM +0800, Xuan Zhuo wrote:
> > On Fri, 3 Feb 2023 04:05:38 -0500, "Michael S. Tsirkin"
> > wrote:
> > > On Thu, Feb 02, 2023 at 07:00:31PM +0800, Xuan Zhuo wrote:
> > > > Introduce virtqueue_reset(
On 2/13/2023 3:14 AM, Eugenio Perez Martin wrote:
On Mon, Feb 13, 2023 at 7:51 AM Si-Wei Liu wrote:
On 2/8/2023 1:42 AM, Eugenio Pérez wrote:
Only create iova_tree if and when it is needed.
The cleanup keeps being responsible of last VQ but this change allows it
to merge both cleanup func
Otherwise the virtqueue object to instate could point to invalid address
that was unmapped from the MTT:
mlx5_core :41:04.2: mlx5_cmd_out_err:782:(pid 8321):
CREATE_GENERAL_OBJECT(0xa00) op_mod(0xd) failed, status
bad parameter(0x3), syndrome (0x5fa1c), err(-22)
Fixes: cae15c2ed8e6 ("vd
+ Eugenio
On 2/11/2023 10:55 PM, Eli Cohen wrote:
On 11/02/2023 8:08, Si-Wei Liu wrote:
Otherwise the virtqueue object to instate could point to invalid address
that was unmapped from the MTT:
mlx5_core :41:04.2: mlx5_cmd_out_err:782:(pid 8321):
CREATE_GENERAL_OBJECT(0xa00) op_mod(0
On Mon, Feb 13 2023 at 22:50, Yongji Xie wrote:
> On Mon, Feb 13, 2023 at 8:00 PM Michael S. Tsirkin wrote:
> I can try to split irq_create_affinity_masks() into a common part and
> an irq specific part, and move the common part to a common dir such as
> /lib and export it. Then we can use the com
On Fri, Feb 10, 2023 at 10:34 AM Saurabh Sengar
wrote:
>
> acpi_sleep_state_supported() is defined only when CONFIG_ACPI=y. The
> function is in acpi_bus.h, and acpi_bus.h can only be used in
> CONFIG_ACPI=y cases. Add the stub function to linux/acpi.h to make
> compilation successful for !CONFIG_
On Mon, Feb 13, 2023 at 02:24:40PM +0200, Eli Cohen wrote:
>
> On 13/02/2023 14:19, Michael S. Tsirkin wrote:
> > On Mon, Feb 06, 2023 at 02:20:16PM +0200, Eli Cohen wrote:
> > > Initialize itolb spinlock.
> > >
> > > Fixes: 5262912ef3cf ("vdpa/mlx5: Add support for control VQ and MAC
> > > sett
On Tue, Feb 07, 2023 at 08:08:43PM +0800, Nanyong Sun wrote:
> From: Rong Wang
>
> Once enable iommu domain for one device, the MSI
> translation tables have to be there for software-managed MSI.
> Otherwise, platform with software-managed MSI without an
> irq bypass function, can not get a corre
On Mon, Feb 06, 2023 at 02:20:16PM +0200, Eli Cohen wrote:
> Initialize itolb spinlock.
>
> Fixes: 5262912ef3cf ("vdpa/mlx5: Add support for control VQ and MAC setting")
> Signed-off-by: Eli Cohen
threading was broken here but whatevs.
> ---
> drivers/vdpa/mlx5/core/resources.c | 1 +
> 1 file
On Fri, Feb 03, 2023 at 05:09:12PM +0800, Xuan Zhuo wrote:
> On Fri, 3 Feb 2023 04:05:38 -0500, "Michael S. Tsirkin"
> wrote:
> > On Thu, Feb 02, 2023 at 07:00:31PM +0800, Xuan Zhuo wrote:
> > > Introduce virtqueue_reset() to release all buffer inside vq.
> > >
> > > Signed-off-by: Xuan Zhuo
> >
On Mon, Feb 06, 2023 at 10:41:16AM +0800, Xuan Zhuo wrote:
> On Fri, 3 Feb 2023 04:17:59 -0500, "Michael S. Tsirkin"
> wrote:
> > On Fri, Feb 03, 2023 at 11:33:31AM +0800, Xuan Zhuo wrote:
> > > On Thu, 02 Feb 2023 15:41:44 +0100, Paolo Abeni wrote:
> > > > On Thu, 2023-02-02 at 19:00 +0800, Xua
On Thu, Feb 02, 2023 at 02:41:24PM +0800, Zheng Wang wrote:
> There is no check about the return value of kmalloc in
> virtscsi_rescan_hotunplug. Add the check to avoid use
> of null pointer 'inq_result' in case of the failure
> of kmalloc.
>
> Signed-off-by: Zheng Wang
> ---
I fixed a typo in s
On Sun, Jan 29, 2023 at 02:19:51PM +0800, Jason Wang wrote:
> On Sun, Jan 29, 2023 at 10:51 AM Longpeng(Mike) wrote:
> >
> > From: Longpeng
> >
> > Support doorbell mapping for vdpasim devices, then we can test the notify
> > passthrough feature even if there's no real hardware on hand.
> >
> > A
On Tue, Jan 31, 2023 at 08:58:37AM +0100, Eugenio Perez Martin wrote:
> On Tue, Jan 31, 2023 at 4:16 AM Jason Wang wrote:
> >
> > On Tue, Jan 31, 2023 at 12:39 AM Eugenio Perez Martin
> > wrote:
> > >
> > > On Sun, Jan 29, 2023 at 7:01 AM Jason Wang wrote:
> > > >
> > > > On Thu, Jan 19, 2023 at
On Mon, Jan 30, 2023 at 07:53:55PM +0800, Yongji Xie wrote:
> On Fri, Jan 27, 2023 at 4:22 PM Michael S. Tsirkin wrote:
> >
> > On Mon, Dec 19, 2022 at 05:36:02PM +0800, Yongji Xie wrote:
> > > On Mon, Dec 19, 2022 at 3:33 PM Michael S. Tsirkin
> > > wrote:
> > > >
> > > > On Mon, Dec 05, 2022 a
On Mon, Feb 13, 2023 at 10:04:17AM +0530, Neeraj Upadhyay wrote:
> Add a uAPI for starting and stopping a SCMI vhost based
> backend.
>
> Signed-off-by: Neeraj Upadhyay
> ---
>
> SCMI Vhost backend implementation is work in progress:
> https://lore.kernel.org/linux-arm-kernel/20220609071956.518
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