From: Jason Wang <jasowang@redhat.com>
To: Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
virtualization@lists.linux-foundation.org
Cc: Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Johannes Berg <johannes@sipsolutions.net>,
"Michael S. Tsirkin" <mst@redhat.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Hans de Goede <hdegoede@redhat.com>,
Mark Gross <markgross@kernel.org>,
Vadim Pasternak <vadimp@nvidia.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Cornelia Huck <cohuck@redhat.com>,
Halil Pasic <pasic@linux.ibm.com>,
Eric Farman <farman@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Vincent Whitchurch <vincent.whitchurch@axis.com>,
linux-um@lists.infradead.org, netdev@vger.kernel.org,
platform-driver-x86@vger.kernel.org,
linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org,
kvm@vger.kernel.org, bpf@vger.kernel.org,
kangjie.xu@linux.alibaba.com
Subject: Re: [PATCH v12 31/40] virtio: find_vqs() add arg sizes
Date: Thu, 21 Jul 2022 17:17:57 +0800 [thread overview]
Message-ID: <d79d26ce-c149-283a-8fd7-825b029aa51d@redhat.com> (raw)
In-Reply-To: <20220720030436.79520-32-xuanzhuo@linux.alibaba.com>
在 2022/7/20 11:04, Xuan Zhuo 写道:
> find_vqs() adds a new parameter sizes to specify the size of each vq
> vring.
>
> NULL as sizes means that all queues in find_vqs() use the maximum size.
> A value in the array is 0, which means that the corresponding queue uses
> the maximum size.
>
> In the split scenario, the meaning of size is the largest size, because
> it may be limited by memory, the virtio core will try a smaller size.
> And the size is power of 2.
>
> Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
> Acked-by: Hans de Goede <hdegoede@redhat.com>
> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Jason Wang <jasowang@redhat.com>
> ---
> arch/um/drivers/virtio_uml.c | 2 +-
> drivers/platform/mellanox/mlxbf-tmfifo.c | 1 +
> drivers/remoteproc/remoteproc_virtio.c | 1 +
> drivers/s390/virtio/virtio_ccw.c | 1 +
> drivers/virtio/virtio_mmio.c | 1 +
> drivers/virtio/virtio_pci_common.c | 2 +-
> drivers/virtio/virtio_pci_common.h | 2 +-
> drivers/virtio/virtio_pci_modern.c | 7 +++++--
> drivers/virtio/virtio_vdpa.c | 1 +
> include/linux/virtio_config.h | 14 +++++++++-----
> 10 files changed, 22 insertions(+), 10 deletions(-)
>
> diff --git a/arch/um/drivers/virtio_uml.c b/arch/um/drivers/virtio_uml.c
> index e719af8bdf56..79e38afd4b91 100644
> --- a/arch/um/drivers/virtio_uml.c
> +++ b/arch/um/drivers/virtio_uml.c
> @@ -1011,7 +1011,7 @@ static struct virtqueue *vu_setup_vq(struct virtio_device *vdev,
>
> static int vu_find_vqs(struct virtio_device *vdev, unsigned nvqs,
> struct virtqueue *vqs[], vq_callback_t *callbacks[],
> - const char * const names[], const bool *ctx,
> + const char * const names[], u32 sizes[], const bool *ctx,
> struct irq_affinity *desc)
> {
> struct virtio_uml_device *vu_dev = to_virtio_uml_device(vdev);
> diff --git a/drivers/platform/mellanox/mlxbf-tmfifo.c b/drivers/platform/mellanox/mlxbf-tmfifo.c
> index 1ae3c56b66b0..8be13d416f48 100644
> --- a/drivers/platform/mellanox/mlxbf-tmfifo.c
> +++ b/drivers/platform/mellanox/mlxbf-tmfifo.c
> @@ -928,6 +928,7 @@ static int mlxbf_tmfifo_virtio_find_vqs(struct virtio_device *vdev,
> struct virtqueue *vqs[],
> vq_callback_t *callbacks[],
> const char * const names[],
> + u32 sizes[],
> const bool *ctx,
> struct irq_affinity *desc)
> {
> diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
> index 0f7706e23eb9..81c4f5776109 100644
> --- a/drivers/remoteproc/remoteproc_virtio.c
> +++ b/drivers/remoteproc/remoteproc_virtio.c
> @@ -158,6 +158,7 @@ static int rproc_virtio_find_vqs(struct virtio_device *vdev, unsigned int nvqs,
> struct virtqueue *vqs[],
> vq_callback_t *callbacks[],
> const char * const names[],
> + u32 sizes[],
> const bool * ctx,
> struct irq_affinity *desc)
> {
> diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c
> index 6b86d0280d6b..72500cd2dbf5 100644
> --- a/drivers/s390/virtio/virtio_ccw.c
> +++ b/drivers/s390/virtio/virtio_ccw.c
> @@ -635,6 +635,7 @@ static int virtio_ccw_find_vqs(struct virtio_device *vdev, unsigned nvqs,
> struct virtqueue *vqs[],
> vq_callback_t *callbacks[],
> const char * const names[],
> + u32 sizes[],
> const bool *ctx,
> struct irq_affinity *desc)
> {
> diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
> index a20d5a6b5819..5e3ba3cc7fd0 100644
> --- a/drivers/virtio/virtio_mmio.c
> +++ b/drivers/virtio/virtio_mmio.c
> @@ -474,6 +474,7 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned int nvqs,
> struct virtqueue *vqs[],
> vq_callback_t *callbacks[],
> const char * const names[],
> + u32 sizes[],
> const bool *ctx,
> struct irq_affinity *desc)
> {
> diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
> index ad258a9d3b9f..7ad734584823 100644
> --- a/drivers/virtio/virtio_pci_common.c
> +++ b/drivers/virtio/virtio_pci_common.c
> @@ -396,7 +396,7 @@ static int vp_find_vqs_intx(struct virtio_device *vdev, unsigned int nvqs,
> /* the config->find_vqs() implementation */
> int vp_find_vqs(struct virtio_device *vdev, unsigned int nvqs,
> struct virtqueue *vqs[], vq_callback_t *callbacks[],
> - const char * const names[], const bool *ctx,
> + const char * const names[], u32 sizes[], const bool *ctx,
> struct irq_affinity *desc)
> {
> int err;
> diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
> index 23112d84218f..a5ff838b85a5 100644
> --- a/drivers/virtio/virtio_pci_common.h
> +++ b/drivers/virtio/virtio_pci_common.h
> @@ -110,7 +110,7 @@ void vp_del_vqs(struct virtio_device *vdev);
> /* the config->find_vqs() implementation */
> int vp_find_vqs(struct virtio_device *vdev, unsigned int nvqs,
> struct virtqueue *vqs[], vq_callback_t *callbacks[],
> - const char * const names[], const bool *ctx,
> + const char * const names[], u32 sizes[], const bool *ctx,
> struct irq_affinity *desc);
> const char *vp_bus_name(struct virtio_device *vdev);
>
> diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
> index 4d28b6918c80..19ec491d515a 100644
> --- a/drivers/virtio/virtio_pci_modern.c
> +++ b/drivers/virtio/virtio_pci_modern.c
> @@ -355,12 +355,15 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
> static int vp_modern_find_vqs(struct virtio_device *vdev, unsigned int nvqs,
> struct virtqueue *vqs[],
> vq_callback_t *callbacks[],
> - const char * const names[], const bool *ctx,
> + const char * const names[],
> + u32 sizes[],
> + const bool *ctx,
> struct irq_affinity *desc)
> {
> struct virtio_pci_device *vp_dev = to_vp_device(vdev);
> struct virtqueue *vq;
> - int rc = vp_find_vqs(vdev, nvqs, vqs, callbacks, names, ctx, desc);
> + int rc = vp_find_vqs(vdev, nvqs, vqs, callbacks, names, sizes, ctx,
> + desc);
>
> if (rc)
> return rc;
> diff --git a/drivers/virtio/virtio_vdpa.c b/drivers/virtio/virtio_vdpa.c
> index 9670cc79371d..832d2c5b1b19 100644
> --- a/drivers/virtio/virtio_vdpa.c
> +++ b/drivers/virtio/virtio_vdpa.c
> @@ -269,6 +269,7 @@ static int virtio_vdpa_find_vqs(struct virtio_device *vdev, unsigned int nvqs,
> struct virtqueue *vqs[],
> vq_callback_t *callbacks[],
> const char * const names[],
> + u32 sizes[],
> const bool *ctx,
> struct irq_affinity *desc)
> {
> diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
> index 36ec7be1f480..888f7e96f0c7 100644
> --- a/include/linux/virtio_config.h
> +++ b/include/linux/virtio_config.h
> @@ -55,6 +55,7 @@ struct virtio_shm_region {
> * include a NULL entry for vqs that do not need a callback
> * names: array of virtqueue names (mainly for debugging)
> * include a NULL entry for vqs unused by driver
> + * sizes: array of virtqueue sizes
> * Returns 0 on success or error status
> * @del_vqs: free virtqueues found by find_vqs().
> * @synchronize_cbs: synchronize with the virtqueue callbacks (optional)
> @@ -103,7 +104,9 @@ struct virtio_config_ops {
> void (*reset)(struct virtio_device *vdev);
> int (*find_vqs)(struct virtio_device *, unsigned nvqs,
> struct virtqueue *vqs[], vq_callback_t *callbacks[],
> - const char * const names[], const bool *ctx,
> + const char * const names[],
> + u32 sizes[],
> + const bool *ctx,
> struct irq_affinity *desc);
> void (*del_vqs)(struct virtio_device *);
> void (*synchronize_cbs)(struct virtio_device *);
> @@ -212,7 +215,7 @@ struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev,
> const char *names[] = { n };
> struct virtqueue *vq;
> int err = vdev->config->find_vqs(vdev, 1, &vq, callbacks, names, NULL,
> - NULL);
> + NULL, NULL);
> if (err < 0)
> return ERR_PTR(err);
> return vq;
> @@ -224,7 +227,8 @@ int virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
> const char * const names[],
> struct irq_affinity *desc)
> {
> - return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, NULL, desc);
> + return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, NULL,
> + NULL, desc);
> }
>
> static inline
> @@ -233,8 +237,8 @@ int virtio_find_vqs_ctx(struct virtio_device *vdev, unsigned nvqs,
> const char * const names[], const bool *ctx,
> struct irq_affinity *desc)
> {
> - return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, ctx,
> - desc);
> + return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, NULL,
> + ctx, desc);
> }
>
> /**
next prev parent reply other threads:[~2022-07-21 9:18 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-20 3:03 [PATCH v12 00/40] virtio pci support VIRTIO_F_RING_RESET Xuan Zhuo
2022-07-20 3:03 ` [PATCH v12 01/40] virtio: record the maximum queue num supported by the device Xuan Zhuo
2022-07-21 3:36 ` Jason Wang
2022-07-20 3:03 ` [PATCH v12 02/40] virtio: struct virtio_config_ops add callbacks for queue_reset Xuan Zhuo
2022-07-21 3:39 ` Jason Wang
2022-07-20 3:03 ` [PATCH v12 03/40] virtio_ring: update the document of the virtqueue_detach_unused_buf for queue reset Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 04/40] virtio_ring: extract the logic of freeing vring Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 05/40] virtio_ring: split vring_virtqueue Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 06/40] virtio_ring: introduce virtqueue_init() Xuan Zhuo
2022-07-21 7:07 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 07/40] virtio_ring: split: introduce vring_free_split() Xuan Zhuo
2022-07-21 7:08 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 08/40] virtio_ring: split: extract the logic of alloc queue Xuan Zhuo
2022-07-21 9:13 ` Jason Wang
2022-07-22 3:47 ` Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 09/40] virtio_ring: split: extract the logic of alloc state and extra Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 10/40] virtio_ring: split: extract the logic of attach vring Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 11/40] virtio_ring: split: extract the logic of vring init Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 12/40] virtio_ring: split: introduce virtqueue_reinit_split() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 13/40] virtio_ring: split: reserve vring_align, may_reduce_num Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 14/40] virtio_ring: split: introduce virtqueue_resize_split() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 15/40] virtio_ring: packed: introduce vring_free_packed Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 16/40] virtio_ring: packed: extract the logic of alloc queue Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 17/40] virtio_ring: packed: extract the logic of alloc state and extra Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 18/40] virtio_ring: packed: extract the logic of attach vring Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 19/40] virtio_ring: packed: extract the logic of vring init Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 20/40] virtio_ring: packed: introduce virtqueue_reinit_packed() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 21/40] virtio_ring: packed: introduce virtqueue_resize_packed() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 22/40] virtio_ring: introduce virtqueue_resize() Xuan Zhuo
2022-07-21 9:15 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 23/40] virtio_pci: struct virtio_pci_common_cfg add queue_notify_data Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 24/40] virtio: allow to unbreak/break virtqueue individually Xuan Zhuo
2022-07-21 9:14 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 25/40] virtio: queue_reset: add VIRTIO_F_RING_RESET Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 26/40] virtio_ring: struct virtqueue introduce reset Xuan Zhuo
2022-07-21 9:14 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 27/40] virtio_pci: struct virtio_pci_common_cfg add queue_reset Xuan Zhuo
2022-07-21 9:14 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 28/40] virtio_pci: introduce helper to get/set queue reset Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 29/40] virtio_pci: extract the logic of active vq for modern pci Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 30/40] virtio_pci: support VIRTIO_F_RING_RESET Xuan Zhuo
2022-07-21 9:15 ` Jason Wang
2022-07-22 3:05 ` Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 31/40] virtio: find_vqs() add arg sizes Xuan Zhuo
2022-07-21 9:17 ` Jason Wang [this message]
2022-07-20 3:04 ` [PATCH v12 32/40] virtio_pci: support the arg sizes of find_vqs() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 33/40] virtio_mmio: " Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 34/40] virtio: add helper virtio_find_vqs_ctx_size() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 35/40] virtio_net: set the default max ring size by find_vqs() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 36/40] virtio_net: get ringparam by virtqueue_get_vring_max_size() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 37/40] virtio_net: split free_unused_bufs() Xuan Zhuo
2022-07-20 3:04 ` [PATCH v12 38/40] virtio_net: support rx queue resize Xuan Zhuo
2022-07-21 9:25 ` Jason Wang
2022-07-25 6:38 ` Xuan Zhuo
2022-07-25 6:57 ` Jason Wang
2022-07-25 7:21 ` Xuan Zhuo
2022-07-25 7:28 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 39/40] virtio_net: support tx " Xuan Zhuo
2022-07-21 9:30 ` Jason Wang
2022-07-20 3:04 ` [PATCH v12 40/40] virtio_net: support set_ringparam Xuan Zhuo
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