在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Introduce vp_active_vq() to configure vring to backend after vq attach
vring. And configure vq vector if necessary.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_pci_modern.c | 46 ++
1 file changed, 28 insertions(+), 18 del
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Add queue_reset in virtio_pci_common_cfg, and add related operation
functions.
For not breaks uABI, add a new struct virtio_pci_common_cfg_reset.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_pci_modern_dev.c | 36 ++
include/l
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Introduce virtqueue_resize() to implement the resize of vring.
Based on these, the driver can dynamically adjust the size of the vring.
For example: ethtool -G.
virtqueue_resize() implements resize based on the vq reset function. In
case of failure to allocate
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Separate the logic of packed to create vring queue.
For the convenience of passing parameters, add a structure
vring_packed.
This feature is required for subsequent virtuqueue reset vring.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 70
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
virtio ring split supports resize.
Only after the new vring is successfully allocated based on the new num,
we will release the old vring. In any case, an error is returned,
indicating that the vring still points to the old vring.
In the case of an error, the
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Introduce a function to initialize vq without allocating new ring,
desc_state, desc_extra.
Subsequent patches will call this function after reset vq to
reinitialize vq.
Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
---
drivers/virtio/virtio_ring.c |
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Separate the logic of initializing vq, and subsequent patches will call
it separately.
The feature of this part is that it does not depend on the information
passed by the upper layer and can be called repeatedly.
Signed-off-by: Xuan Zhuo
---
drivers/virtio
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Separate the logic of attach vring, subsequent patches will call it
separately.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 20 ++--
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Separate the logic of creating desc_state, desc_extra, and subsequent
patches will call it independently.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 53 ++--
1 file changed, 38 insertions(+), 15 deletions(-)
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Separate the logic of split to create vring queue.
This feature is required for subsequent virtuqueue reset vring.
Signed-off-by: Xuan Zhuo
---
drivers/virtio/virtio_ring.c | 53
1 file changed, 36 insertions(+), 17 del
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Introduce vring_free() to free the vring of vq.
Subsequent patches will use vring_free() alone.
Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
---
drivers/virtio/virtio_ring.c | 18 +-
1 file changed, 13 insertions(+), 5 deletions(-)
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
The parameter vq of vring_alloc_desc_extra() is useless. This patch
removes this parameter.
Subsequent patches will call this function to avoid passing useless
arguments.
Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
---
drivers/virtio/virtio_ring.c
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Added documentation for virtqueue_detach_unused_buf, allowing it to be
called on queue reset.
Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
---
drivers/virtio/virtio_ring.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drive
On Tue, Apr 12, 2022 at 10:47 AM Jason Wang wrote:
>
>
> 在 2022/4/6 上午11:43, Xuan Zhuo 写道:
> > Performing reset on a queue is divided into four steps:
> >
> > 1. transport: notify the device to reset the queue
> > 2. vring: recycle the buffer submitted
> > 3. vring: reset/resize the
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Performing reset on a queue is divided into four steps:
1. transport: notify the device to reset the queue
2. vring: recycle the buffer submitted
3. vring: reset/resize the vring (may re-alloc)
4. transport: mmap vring to device, and enable the
在 2022/4/6 上午11:43, Xuan Zhuo 写道:
Record the maximum queue num supported by the device.
virtio-net can display the maximum (supported by hardware) ring size in
ethtool -g eth0.
When the subsequent patch implements vring reset, it can judge whether
the ring size passed by the driver is legal ba
Hi Thomas,
On Mon, Apr 11, 2022 at 10:18 AM Thomas Gleixner wrote:
> > diff --git a/arch/m68k/include/asm/timex.h b/arch/m68k/include/asm/timex.h
> > index 6a21d9358280..5351b10e1b18 100644
> > --- a/arch/m68k/include/asm/timex.h
> > +++ b/arch/m68k/include/asm/timex.h
> > @@ -35,7 +35,7 @@ stati
- Ursprüngliche Mail -
> Von: "Nathan Chancellor"
> I attempted to print out the error code but it seems like there is no
> output in the console after "reboot: System halted". If I add an
> unconditional print right before the call to os_set_fd_block(), I see it
> during start up but I do
On 04/06, Christoph Hellwig wrote:
> Secure erase is a very different operation from discard in that it is
> a data integrity operation vs hint. Fully split the limits and helper
> infrastructure to make the separation more clear.
>
> Signed-off-by: Christoph Hellwig
> ---
> block/blk-core.c
Hi Richard,
On Sun, Apr 10, 2022 at 11:33:33AM +0200, Richard Weinberger wrote:
> - Ursprüngliche Mail -
> > Von: "Thorsten Leemhuis"
> > Hi, this is your Linux kernel regression tracker. Top-posting for once,
> > to make this easily accessible to everyone.
> >
> > Zhen Lei, Richard, wha
On Sat, Apr 09, 2022 at 06:50:41AM +0200, Christoph Hellwig wrote:
> Abstract away implementation details from file systems by providing a
> block_device based helper to retrieve the discard granularity.
>
> Signed-off-by: Christoph Hellwig
> Reviewed-by: Martin K. Petersen
> Acked-by: Christoph
On Sat, Apr 09, 2022 at 06:50:40AM +0200, Christoph Hellwig wrote:
> Just use a non-zero max_discard_sectors as an indicator for discard
> support, similar to what is done for write zeroes.
>
> The only places where needs special attention is the RAID5 driver,
> which must clear discard support fo
On Sat, Apr 09, 2022 at 06:50:24AM +0200, Christoph Hellwig wrote:
> Signed-off-by: Christoph Hellwig
> Reviewed-by: Johannes Thumshirn
Acked-by: David Sterba
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On Sat, Apr 09, 2022 at 06:50:40AM +0200, Christoph Hellwig wrote:
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index efb85c6d8e2d5..7e07dd69262a7 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -1607,10 +1607,8 @@ static void nvme_config_discar
On 09/04/2022 06:50, Christoph Hellwig wrote:
> Just use a non-zero max_discard_sectors as an indicator for discard
> support, similar to what is done for write zeroes.
>
> The only places where needs special attention is the RAID5 driver,
> which must clear discard support for security reasons by
On Sun, Apr 10 2022 at 23:49, Jason A. Donenfeld wrote:
> In the event that random_get_entropy() can't access a cycle counter or
> similar, falling back to returning 0 is really not the best we can do.
> Instead, at least calling ktime_read_raw_clock() would be preferable,
> because that always ne
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