Displaying 20 results from an estimated 25 matches for "irq_bypass_produc".
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irq_bypass_producer
2020 Aug 04
3
[PATCH V5 1/6] vhost: introduce vhost_vring_call
...on Wang wrote:
>>
>> On 2020/7/31 ??2:55, Zhu Lingshan wrote:
>>> This commit introduces struct vhost_vring_call which replaced
>>> raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
>>> Besides eventfd_ctx, it contains a spin lock and an
>>> irq_bypass_producer in its structure.
>>>
>>> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
>>> Suggested-by: Jason Wang <jasowang at redhat.com>
>>> ---
>>> ? drivers/vhost/vdpa.c? |? 4 ++--
>>> ? drivers/vhost/vhost.c | 22 ++++++++++++++++...
2020 Aug 04
3
[PATCH V5 1/6] vhost: introduce vhost_vring_call
...on Wang wrote:
>>
>> On 2020/7/31 ??2:55, Zhu Lingshan wrote:
>>> This commit introduces struct vhost_vring_call which replaced
>>> raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
>>> Besides eventfd_ctx, it contains a spin lock and an
>>> irq_bypass_producer in its structure.
>>>
>>> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
>>> Suggested-by: Jason Wang <jasowang at redhat.com>
>>> ---
>>> ? drivers/vhost/vdpa.c? |? 4 ++--
>>> ? drivers/vhost/vhost.c | 22 ++++++++++++++++...
2020 Aug 05
2
[PATCH V5 1/6] vhost: introduce vhost_vring_call
On 2020/8/4 ??5:21, Michael S. Tsirkin wrote:
>>>>> ? +struct vhost_vring_call {
>>>>> +??? struct eventfd_ctx *ctx;
>>>>> +??? struct irq_bypass_producer producer;
>>>>> +??? spinlock_t ctx_lock;
>>>> It's not clear to me why we need ctx_lock here.
>>>>
>>>> Thanks
>>> Hi Jason,
>>>
>>> we use this lock to protect the eventfd_ctx and irq from race conditions,
>>...
2020 Aug 05
2
[PATCH V5 1/6] vhost: introduce vhost_vring_call
On 2020/8/4 ??5:21, Michael S. Tsirkin wrote:
>>>>> ? +struct vhost_vring_call {
>>>>> +??? struct eventfd_ctx *ctx;
>>>>> +??? struct irq_bypass_producer producer;
>>>>> +??? spinlock_t ctx_lock;
>>>> It's not clear to me why we need ctx_lock here.
>>>>
>>>> Thanks
>>> Hi Jason,
>>>
>>> we use this lock to protect the eventfd_ctx and irq from race conditions,
>>...
2020 Aug 04
0
[PATCH V5 1/6] vhost: introduce vhost_vring_call
On 2020/7/31 ??2:55, Zhu Lingshan wrote:
> This commit introduces struct vhost_vring_call which replaced
> raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
> Besides eventfd_ctx, it contains a spin lock and an
> irq_bypass_producer in its structure.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> Suggested-by: Jason Wang <jasowang at redhat.com>
> ---
> drivers/vhost/vdpa.c | 4 ++--
> drivers/vhost/vhost.c | 22 ++++++++++++++++------
> drivers/vhost/vhost.h | 9 +++++++...
2020 Jul 17
0
[PATCH V2 1/6] vhost: introduce vhost_call_ctx
On 2020/7/16 ??7:23, Zhu Lingshan wrote:
> This commit introduces struct vhost_call_ctx which replaced
> raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
> Besides eventfd_ctx, it contains a spin lock and an
> irq_bypass_producer in its structure.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> Suggested-by: Jason Wang <jasowang at redhat.com>
> ---
> drivers/vhost/vdpa.c | 4 ++--
> drivers/vhost/vhost.c | 22 ++++++++++++++++------
> drivers/vhost/vhost.h | 9 +++++++...
2020 Jul 22
0
[PATCH V3 1/6] vhost: introduce vhost_vring_call
...On 7/22/2020 5:49 PM, Zhu Lingshan wrote:
> From: Zhu Lingshan <lingshan.zhu at intel.com>
>
> This commit introduces struct vhost_vring_call which replaced
> raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
> Besides eventfd_ctx, it contains a spin lock and an
> irq_bypass_producer in its structure.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> Signed-off-by: lszhu <lszhu at localhost.localdomain>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at live.com>
> ---
> drivers/vhost/vdpa.c | 4 ++--
> drivers/vhost/vhost.c...
2020 Aug 04
0
[PATCH V5 1/6] vhost: introduce vhost_vring_call
...> On 2020/7/31 ??2:55, Zhu Lingshan wrote:
> > > > This commit introduces struct vhost_vring_call which replaced
> > > > raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
> > > > Besides eventfd_ctx, it contains a spin lock and an
> > > > irq_bypass_producer in its structure.
> > > >
> > > > Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> > > > Suggested-by: Jason Wang <jasowang at redhat.com>
> > > > ---
> > > > ? drivers/vhost/vdpa.c? |? 4 ++--
> > > > ?...
2020 Sep 09
0
[PATCH] vhost_vdpa: remove unnecessary spin_lock in vhost_vring_call
...b45519ca66a7..99f27ce982da 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -302,7 +302,6 @@ static void vhost_vring_call_reset(struct vhost_vring_call *call_ctx)
> {
> call_ctx->ctx = NULL;
> memset(&call_ctx->producer, 0x0, sizeof(struct irq_bypass_producer));
> - spin_lock_init(&call_ctx->ctx_lock);
> }
>
> static void vhost_vq_reset(struct vhost_dev *dev,
> @@ -1637,9 +1636,7 @@ long vhost_vring_ioctl(struct vhost_dev *d, unsigned int ioctl, void __user *arg
> break;
> }
>
> - spin_lock(&vq...
2020 Jul 17
0
[PATCH V2 4/6] vhost_vdpa: implement IRQ offloading in vhost_vdpa
On 2020/7/16 ??7:23, Zhu Lingshan wrote:
> This patch introduce a set of functions for setup/unsetup
> and update irq offloading respectively by register/unregister
> and re-register the irq_bypass_producer.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> Suggested-by: Jason Wang <jasowang at redhat.com>
> ---
> drivers/vhost/Kconfig | 1 +
> drivers/vhost/vdpa.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 49 insertio...
2020 Jul 13
0
[PATCH 3/7] vhost_vdpa: implement IRQ offloading functions in vhost_vdpa
On 2020/7/12 ??10:49, Zhu Lingshan wrote:
> This patch introduce a set of functions for setup/unsetup
> and update irq offloading respectively by register/unregister
> and re-register the irq_bypass_producer.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> ---
> drivers/vhost/vdpa.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 69 insertions(+)
>
> diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> index 2fcc422..92...
2020 Jul 15
0
[PATCH 3/7] vhost_vdpa: implement IRQ offloading functions in vhost_vdpa
...rote:
>
>
> On 7/13/2020 4:22 PM, Jason Wang wrote:
>>
>> On 2020/7/12 ??10:49, Zhu Lingshan wrote:
>>> This patch introduce a set of functions for setup/unsetup
>>> and update irq offloading respectively by register/unregister
>>> and re-register the irq_bypass_producer.
>>>
>>> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
>>> ---
>>> ? drivers/vhost/vdpa.c | 69
>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++
>>> ? 1 file changed, 69 insertions(+)
>>>
>>> diff --gi...
2020 Aug 04
0
[PATCH V5 4/6] vhost_vdpa: implement IRQ offloading in vhost_vdpa
On 2020/7/31 ??2:55, Zhu Lingshan wrote:
> This patch introduce a set of functions for setup/unsetup
> and update irq offloading respectively by register/unregister
> and re-register the irq_bypass_producer.
>
> With these functions, this commit can setup/unsetup
> irq offloading through setting DRIVER_OK/!DRIVER_OK, and
> update irq offloading through SET_VRING_CALL.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> Suggested-by: Jason Wang <jasowang at red...
2020 Jul 28
0
[PATCH V4 4/6] vhost_vdpa: implement IRQ offloading in vhost_vdpa
On 2020/7/28 ??12:24, Zhu Lingshan wrote:
> This patch introduce a set of functions for setup/unsetup
> and update irq offloading respectively by register/unregister
> and re-register the irq_bypass_producer.
>
> With these functions, this commit can setup/unsetup
> irq offloading through setting DRIVER_OK/!DRIVER_OK, and
> update irq offloading through SET_VRING_CALL.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> Suggested-by: Jason Wang <jasowang at red...
2020 Aug 04
0
[PATCH V5 4/6] vhost_vdpa: implement IRQ offloading in vhost_vdpa
...e:
>
> On 8/4/2020 4:51 PM, Jason Wang wrote:
>
>
> On 2020/7/31 ??2:55, Zhu Lingshan wrote:
>
> This patch introduce a set of functions for setup/unsetup
> and update irq offloading respectively by register/unregister
> and re-register the irq_bypass_producer.
>
> With these functions, this commit can setup/unsetup
> irq offloading through setting DRIVER_OK/!DRIVER_OK, and
> update irq offloading through SET_VRING_CALL.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
> Su...
2020 Aug 05
0
[PATCH V5 4/6] vhost_vdpa: implement IRQ offloading in vhost_vdpa
...wrote:
>
>
> On 8/4/2020 4:51 PM, Jason Wang wrote:
>>
>> On 2020/7/31 ??2:55, Zhu Lingshan wrote:
>>> This patch introduce a set of functions for setup/unsetup
>>> and update irq offloading respectively by register/unregister
>>> and re-register the irq_bypass_producer.
>>>
>>> With these functions, this commit can setup/unsetup
>>> irq offloading through setting DRIVER_OK/!DRIVER_OK, and
>>> update irq offloading through SET_VRING_CALL.
>>>
>>> Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com>
&...
2020 Aug 05
0
[PATCH V5 4/6] vhost_vdpa: implement IRQ offloading in vhost_vdpa
...PM, Jason Wang wrote:
>>>>
>>>> On 2020/7/31 ??2:55, Zhu Lingshan wrote:
>>>>> This patch introduce a set of functions for setup/unsetup
>>>>> and update irq offloading respectively by register/unregister
>>>>> and re-register the irq_bypass_producer.
>>>>>
>>>>> With these functions, this commit can setup/unsetup
>>>>> irq offloading through setting DRIVER_OK/!DRIVER_OK, and
>>>>> update irq offloading through SET_VRING_CALL.
>>>>>
>>>>> Signed-off-by:...
2020 Jul 20
0
[PATCH V2 3/6] vDPA: implement IRQ offloading helpers in vDPA core
...driver releasing and binding?
> Will add an vdpa_unsetup_irq() call in vhsot_vdpa_release().
> For binding, I think it is a new dev bound to the the driver,
> it should go through the vdpa_setup_irq() routine. or if it is
> a device re-bind to vhost_vdpa, I think we have cleaned up
> irq_bypass_producer for it as we would call vhdpa_unsetup_irq()
> in the release function.
I meant can the following things happen?
1) some vDPA device driver probe the hardware and call
vdpa_request_irq() in its PCI probe function.
2) vDPA device is probed by vhost-vDPA
Then irq bypass can't work since...
2020 Jul 21
0
[PATCH V2 3/6] vDPA: implement IRQ offloading helpers in vDPA core
...t; Will add an vdpa_unsetup_irq() call in vhsot_vdpa_release().
>>> For binding, I think it is a new dev bound to the the driver,
>>> it should go through the vdpa_setup_irq() routine. or if it is
>>> a device re-bind to vhost_vdpa, I think we have cleaned up
>>> irq_bypass_producer for it as we would call vhdpa_unsetup_irq()
>>> in the release function.
>>
>>
>> I meant can the following things happen?
>>
>> 1) some vDPA device driver probe the hardware and call
>> vdpa_request_irq() in its PCI probe function.
>> 2) vDPA d...
2020 Aug 05
0
[PATCH V5 1/6] vhost: introduce vhost_vring_call
...Zhu, Lingshan wrote:
>
>
> On 8/5/2020 10:16 AM, Jason Wang wrote:
>>
>> On 2020/8/4 ??5:21, Michael S. Tsirkin wrote:
>>>>>>> ?? +struct vhost_vring_call {
>>>>>>> +??? struct eventfd_ctx *ctx;
>>>>>>> +??? struct irq_bypass_producer producer;
>>>>>>> +??? spinlock_t ctx_lock;
>>>>>> It's not clear to me why we need ctx_lock here.
>>>>>>
>>>>>> Thanks
>>>>> Hi Jason,
>>>>>
>>>>> we use this lock to prote...