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From: "Xia, Chenbo" <chenbo.xia@intel.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"olivier.matz@6wind.com" <olivier.matz@6wind.com>,
	"amorenoz@redhat.com" <amorenoz@redhat.com>,
	"david.marchand@redhat.com" <david.marchand@redhat.com>
Subject: Re: [dpdk-dev] [PATCH v2 31/44] net/virtio: add Virtio-user vring file ops
Date: Fri, 22 Jan 2021 08:01:18 +0000
Message-ID: <MN2PR11MB40634797612E6400E324A4EC9CA00@MN2PR11MB4063.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20210119212507.1043636-32-maxime.coquelin@redhat.com>

> -----Original Message-----
> From: Maxime Coquelin <maxime.coquelin@redhat.com>
> Sent: Wednesday, January 20, 2021 5:25 AM
> To: dev@dpdk.org; Xia, Chenbo <chenbo.xia@intel.com>; olivier.matz@6wind.com;
> amorenoz@redhat.com; david.marchand@redhat.com
> Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
> Subject: [PATCH v2 31/44] net/virtio: add Virtio-user vring file ops
> 
> This patch introduces new callbacks for setting
> vring files (kick and call).
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
>  drivers/net/virtio/virtio_user/vhost.h        |  2 +
>  drivers/net/virtio/virtio_user/vhost_kernel.c | 41 +++++++++++++++--
>  drivers/net/virtio/virtio_user/vhost_user.c   | 46 +++++++++++++++++--
>  drivers/net/virtio/virtio_user/vhost_vdpa.c   | 18 ++++++--
>  .../net/virtio/virtio_user/virtio_user_dev.c  |  4 +-
>  5 files changed, 97 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/net/virtio/virtio_user/vhost.h
> b/drivers/net/virtio/virtio_user/vhost.h
> index 2d433d5966..94c524547e 100644
> --- a/drivers/net/virtio/virtio_user/vhost.h
> +++ b/drivers/net/virtio/virtio_user/vhost.h
> @@ -118,6 +118,8 @@ struct virtio_user_backend_ops {
>  	int (*set_vring_num)(struct virtio_user_dev *dev, struct
> vhost_vring_state *state);
>  	int (*set_vring_base)(struct virtio_user_dev *dev, struct
> vhost_vring_state *state);
>  	int (*get_vring_base)(struct virtio_user_dev *dev, struct
> vhost_vring_state *state);
> +	int (*set_vring_call)(struct virtio_user_dev *dev, struct
> vhost_vring_file *file);
> +	int (*set_vring_kick)(struct virtio_user_dev *dev, struct
> vhost_vring_file *file);
>  	int (*send_request)(struct virtio_user_dev *dev,
>  			    enum vhost_user_request req,
>  			    void *arg);
> diff --git a/drivers/net/virtio/virtio_user/vhost_kernel.c
> b/drivers/net/virtio/virtio_user/vhost_kernel.c
> index e12fe74f46..dc5358bc15 100644
> --- a/drivers/net/virtio/virtio_user/vhost_kernel.c
> +++ b/drivers/net/virtio/virtio_user/vhost_kernel.c
> @@ -259,11 +259,44 @@ vhost_kernel_get_vring_base(struct virtio_user_dev *dev,
> struct vhost_vring_stat
>  	return vhost_kernel_set_vring(dev, VHOST_GET_VRING_BASE, state);
>  }
> 
> +static int
> +vhost_kernel_set_vring_file(struct virtio_user_dev *dev, uint64_t req,
> +		struct vhost_vring_file *file)
> +{
> +	int ret, fd;
> +	unsigned int index = file->index;
> +
> +	/* Convert from queue index to queue-pair & offset */
> +	fd = dev->vhostfds[file->index / 2];
> +	file->index %= 2;
> +
> +	ret = vhost_kernel_ioctl(fd, req, file);
> +	if (ret < 0) {
> +		PMD_DRV_LOG(ERR, "Failed to set vring file (request %" PRIu64 ")",
> req);
> +		return -1;
> +	}
> +
> +	/* restore index back to queue index */
> +	file->index = index;
> +
> +	return 0;
> +}
> +
> +static int
> +vhost_kernel_set_vring_kick(struct virtio_user_dev *dev, struct
> vhost_vring_file *file)
> +{
> +	return vhost_kernel_set_vring_file(dev, VHOST_SET_VRING_KICK, file);
> +}
> +
> +static int
> +vhost_kernel_set_vring_call(struct virtio_user_dev *dev, struct
> vhost_vring_file *file)
> +{
> +	return vhost_kernel_set_vring_file(dev, VHOST_SET_VRING_CALL, file);
> +}
> +
>  static uint64_t vhost_req_user_to_kernel[] = {
>  	[VHOST_USER_RESET_OWNER] = VHOST_RESET_OWNER,
> -	[VHOST_USER_SET_VRING_CALL] = VHOST_SET_VRING_CALL,
>  	[VHOST_USER_SET_VRING_ADDR] = VHOST_SET_VRING_ADDR,
> -	[VHOST_USER_SET_VRING_KICK] = VHOST_SET_VRING_KICK,
>  };
> 
>  static int
> @@ -283,8 +316,6 @@ vhost_kernel_send_request(struct virtio_user_dev *dev,
> 
>  	switch (req_kernel) {
>  	case VHOST_SET_VRING_ADDR:
> -	case VHOST_SET_VRING_KICK:
> -	case VHOST_SET_VRING_CALL:
>  		queue_sel = *(unsigned int *)arg;
>  		vhostfd = dev->vhostfds[queue_sel / 2];
>  		*(unsigned int *)arg = queue_sel % 2;
> @@ -440,6 +471,8 @@ struct virtio_user_backend_ops virtio_ops_kernel = {
>  	.set_vring_num = vhost_kernel_set_vring_num,
>  	.set_vring_base = vhost_kernel_set_vring_base,
>  	.get_vring_base = vhost_kernel_get_vring_base,
> +	.set_vring_call = vhost_kernel_set_vring_call,
> +	.set_vring_kick = vhost_kernel_set_vring_kick,
>  	.send_request = vhost_kernel_send_request,
>  	.enable_qp = vhost_kernel_enable_queue_pair
>  };
> diff --git a/drivers/net/virtio/virtio_user/vhost_user.c
> b/drivers/net/virtio/virtio_user/vhost_user.c
> index c39be24ce4..06d17cadcb 100644
> --- a/drivers/net/virtio/virtio_user/vhost_user.c
> +++ b/drivers/net/virtio/virtio_user/vhost_user.c
> @@ -498,13 +498,51 @@ vhost_user_get_vring_base(struct virtio_user_dev *dev,
> struct vhost_vring_state
>  	return -1;
>  }
> 
> +static int
> +vhost_user_set_vring_file(struct virtio_user_dev *dev, enum
> vhost_user_request req,
> +		struct vhost_vring_file *file)
> +{
> +	int ret;
> +	int fd = file->fd;
> +	int num_fd = 0;
> +	struct vhost_user_msg msg = {
> +		.request = req,
> +		.flags = VHOST_USER_VERSION,
> +		.size = sizeof(msg.payload.u64),
> +		.payload.u64 = file->index & VHOST_USER_VRING_IDX_MASK,
> +	};
> +
> +	if (fd >= 0)
> +		num_fd++;
> +	else
> +		msg.payload.u64 |= VHOST_USER_VRING_NOFD_MASK;
> +
> +	ret = vhost_user_write(dev->vhostfd, &msg, &fd, num_fd);
> +	if (ret < 0) {
> +		PMD_DRV_LOG(ERR, "Failed to set vring file (request %d)", req);
> +		return -1;
> +	}
> +
> +	return 0;
> +}
> +
> +static int
> +vhost_user_set_vring_call(struct virtio_user_dev *dev, struct
> vhost_vring_file *file)
> +{
> +	return vhost_user_set_vring_file(dev, VHOST_USER_SET_VRING_CALL, file);
> +}
> +
> +static int
> +vhost_user_set_vring_kick(struct virtio_user_dev *dev, struct
> vhost_vring_file *file)
> +{
> +	return vhost_user_set_vring_file(dev, VHOST_USER_SET_VRING_KICK, file);
> +}
> +
>  static struct vhost_user_msg m;
> 
>  const char * const vhost_msg_strings[] = {
>  	[VHOST_USER_RESET_OWNER] = "VHOST_RESET_OWNER",
> -	[VHOST_USER_SET_VRING_CALL] = "VHOST_SET_VRING_CALL",
>  	[VHOST_USER_SET_VRING_ADDR] = "VHOST_SET_VRING_ADDR",
> -	[VHOST_USER_SET_VRING_KICK] = "VHOST_SET_VRING_KICK",
>  	[VHOST_USER_SET_STATUS] = "VHOST_SET_STATUS",
>  	[VHOST_USER_GET_STATUS] = "VHOST_GET_STATUS",
>  };
> @@ -577,8 +615,6 @@ vhost_user_sock(struct virtio_user_dev *dev,
>  		msg.size = sizeof(m.payload.addr);
>  		break;
> 
> -	case VHOST_USER_SET_VRING_KICK:
> -	case VHOST_USER_SET_VRING_CALL:
>  	case VHOST_USER_SET_VRING_ERR:
>  		file = arg;
>  		msg.payload.u64 = file->index & VHOST_USER_VRING_IDX_MASK;
> @@ -749,6 +785,8 @@ struct virtio_user_backend_ops virtio_ops_user = {
>  	.set_vring_num = vhost_user_set_vring_num,
>  	.set_vring_base = vhost_user_set_vring_base,
>  	.get_vring_base = vhost_user_get_vring_base,
> +	.set_vring_call = vhost_user_set_vring_call,
> +	.set_vring_kick = vhost_user_set_vring_kick,
>  	.send_request = vhost_user_sock,
>  	.enable_qp = vhost_user_enable_queue_pair
>  };
> diff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c
> b/drivers/net/virtio/virtio_user/vhost_vdpa.c
> index 323751093a..304a808b55 100644
> --- a/drivers/net/virtio/virtio_user/vhost_vdpa.c
> +++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c
> @@ -38,9 +38,7 @@
> 
>  static uint64_t vhost_req_user_to_vdpa[] = {
>  	[VHOST_USER_RESET_OWNER] = VHOST_RESET_OWNER,
> -	[VHOST_USER_SET_VRING_CALL] = VHOST_SET_VRING_CALL,
>  	[VHOST_USER_SET_VRING_ADDR] = VHOST_SET_VRING_ADDR,
> -	[VHOST_USER_SET_VRING_KICK] = VHOST_SET_VRING_KICK,
>  	[VHOST_USER_SET_STATUS] = VHOST_VDPA_SET_STATUS,
>  	[VHOST_USER_GET_STATUS] = VHOST_VDPA_GET_STATUS,
>  };
> @@ -364,6 +362,18 @@ vhost_vdpa_get_vring_base(struct virtio_user_dev *dev,
> struct vhost_vring_state
>  	return vhost_vdpa_ioctl(dev->vhostfd, VHOST_GET_VRING_BASE, state);
>  }
> 
> +static int
> +vhost_vdpa_set_vring_call(struct virtio_user_dev *dev, struct
> vhost_vring_file *file)
> +{
> +	return vhost_vdpa_ioctl(dev->vhostfd, VHOST_SET_VRING_CALL, file);
> +}
> +
> +static int
> +vhost_vdpa_set_vring_kick(struct virtio_user_dev *dev, struct
> vhost_vring_file *file)
> +{
> +	return vhost_vdpa_ioctl(dev->vhostfd, VHOST_SET_VRING_KICK, file);
> +}
> +
>  /* with below features, vhost vdpa does not need to do the checksum and TSO,
>   * these info will be passed to virtio_user through virtio net header.
>   */
> @@ -393,8 +403,6 @@ vhost_vdpa_send_request(struct virtio_user_dev *dev,
> 
>  	switch (req_vdpa) {
>  	case VHOST_SET_VRING_ADDR:
> -	case VHOST_SET_VRING_KICK:
> -	case VHOST_SET_VRING_CALL:
>  		PMD_DRV_LOG(DEBUG, "vhostfd=%d, index=%u",
>  			    dev->vhostfd, *(unsigned int *)arg);
>  		break;
> @@ -474,6 +482,8 @@ struct virtio_user_backend_ops virtio_ops_vdpa = {
>  	.set_vring_num = vhost_vdpa_set_vring_num,
>  	.set_vring_base = vhost_vdpa_set_vring_base,
>  	.get_vring_base = vhost_vdpa_get_vring_base,
> +	.set_vring_call = vhost_vdpa_set_vring_call,
> +	.set_vring_kick = vhost_vdpa_set_vring_kick,
>  	.send_request = vhost_vdpa_send_request,
>  	.enable_qp = vhost_vdpa_enable_queue_pair,
>  	.dma_map = vhost_vdpa_dma_map_batch,
> diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c
> b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> index 0b30c10016..4383e403da 100644
> --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
> +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> @@ -40,7 +40,7 @@ virtio_user_create_queue(struct virtio_user_dev *dev,
> uint32_t queue_sel)
> 
>  	file.index = queue_sel;
>  	file.fd = dev->callfds[queue_sel];
> -	dev->ops->send_request(dev, VHOST_USER_SET_VRING_CALL, &file);
> +	dev->ops->set_vring_call(dev, &file);
> 
>  	return 0;
>  }
> @@ -89,7 +89,7 @@ virtio_user_kick_queue(struct virtio_user_dev *dev, uint32_t
> queue_sel)
>  	 */
>  	file.index = queue_sel;
>  	file.fd = dev->kickfds[queue_sel];
> -	dev->ops->send_request(dev, VHOST_USER_SET_VRING_KICK, &file);
> +	dev->ops->set_vring_kick(dev, &file);
> 
>  	return 0;
>  }
> --
> 2.29.2

Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>

  reply	other threads:[~2021-01-22  8:01 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-19 21:24 [dpdk-dev] [PATCH v2 00/44] net/virtio: Virtio PMD rework Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 01/44] bus/vdev: add helper to get vdev from eth dev Maxime Coquelin
2021-01-20  0:56   ` Thomas Monjalon
2021-01-25 10:53     ` Maxime Coquelin
2021-01-25 11:04       ` Thomas Monjalon
2021-01-21  8:58   ` Xia, Chenbo
2021-01-25 14:51     ` Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 02/44] bus/vdev: add driver IOVA VA mode requirement Maxime Coquelin
2021-01-20 15:32   ` David Marchand
2021-01-20 17:47     ` Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 03/44] net/virtio: fix getting old status on reconnect Maxime Coquelin
2021-01-21  7:12   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 04/44] net/virtio: introduce Virtio bus type Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 05/44] net/virtio: refactor virtio-user device Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 06/44] net/virtio: introduce PCI device metadata Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 07/44] net/virtio: move PCI device init in dedicated file Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 08/44] net/virtio: move PCI specific dev init to PCI ethdev init Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 09/44] net/virtio: move MSIX detection to PCI ethdev Maxime Coquelin
2021-01-21  7:12   ` Xia, Chenbo
2021-01-25 12:41     ` Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 10/44] net/virtio: force IOVA as VA mode for Virtio-user Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 11/44] net/virtio: store PCI type in Virtio device metadata Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 12/44] net/virtio: add callback for device closing Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 13/44] net/virtio: validate features at bus level Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 14/44] net/virtio: remove bus type enum Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 15/44] net/virtio: move PCI-specific fields to PCI device Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 16/44] net/virtio: pack virtio HW struct Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 17/44] net/virtio: move legacy IO to Virtio PCI Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 18/44] net/virtio: introduce generic virtio header Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 19/44] net/virtio: move features definition to generic header Maxime Coquelin
2021-01-21  6:47   ` Xia, Chenbo
2021-01-25 12:35     ` Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 20/44] net/virtio: move virtqueue defines in " Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 21/44] net/virtio: move config definitions to " Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 22/44] net/virtio: make interrupt handling more generic Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 23/44] net/virtio: move vring alignment to generic header Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 24/44] net/virtio: remove last PCI refs in non-PCI code Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 25/44] net/virtio: make Vhost-user req sender consistent Maxime Coquelin
2021-01-21  8:50   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 26/44] net/virtio: add Virtio-user ops to set owner Maxime Coquelin
2021-01-22  3:27   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 27/44] net/virtio: add Virtio-user features ops Maxime Coquelin
2021-01-22  7:25   ` Xia, Chenbo
2021-01-25 14:53     ` Maxime Coquelin
2021-01-22  8:46   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 28/44] net/virtio: add Virtio-user protocol " Maxime Coquelin
2021-01-22  7:27   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 29/44] net/virtio: add Virtio-user memory tables ops Maxime Coquelin
2021-01-22  7:34   ` Xia, Chenbo
2021-01-25 14:56     ` Maxime Coquelin
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 30/44] net/virtio: add Virtio-user vring setting ops Maxime Coquelin
2021-01-22  7:49   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 31/44] net/virtio: add Virtio-user vring file ops Maxime Coquelin
2021-01-22  8:01   ` Xia, Chenbo [this message]
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 32/44] net/virtio: add Virtio-user vring address ops Maxime Coquelin
2021-01-22  8:02   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 33/44] net/virtio: add Virtio-user status ops Maxime Coquelin
2021-01-22  8:02   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 34/44] net/virtio: remove useless request ops Maxime Coquelin
2021-01-22  8:10   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 35/44] net/virtio: improve Virtio-user errors handling Maxime Coquelin
2021-01-22  8:10   ` Xia, Chenbo
2021-01-19 21:24 ` [dpdk-dev] [PATCH v2 36/44] net/virtio: move Vhost-user reqs to Vhost-user backend Maxime Coquelin
2021-01-21  8:56   ` Xia, Chenbo
2021-01-25 14:50     ` Maxime Coquelin
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 37/44] net/virtio: make server mode blocking Maxime Coquelin
2021-01-22  8:19   ` Xia, Chenbo
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 38/44] net/virtio: move protocol features to Vhost-user Maxime Coquelin
2021-01-22  8:20   ` Xia, Chenbo
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 39/44] net/virtio: introduce backend data Maxime Coquelin
2021-01-22  8:26   ` Xia, Chenbo
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 40/44] net/virtio: move Vhost-user specifics to its backend Maxime Coquelin
2021-01-22  8:49   ` Xia, Chenbo
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 41/44] net/virtio: move Vhost-kernel data " Maxime Coquelin
2021-01-22  8:55   ` Xia, Chenbo
2021-01-25 14:59     ` Maxime Coquelin
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 42/44] net/virtio: move Vhost-vDPA " Maxime Coquelin
2021-01-22  9:06   ` Xia, Chenbo
2021-01-25 15:02     ` Maxime Coquelin
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 43/44] net/virtio: improve Vhost-user error logging Maxime Coquelin
2021-01-22  9:11   ` Xia, Chenbo
2021-01-25 15:04     ` Maxime Coquelin
2021-01-26  6:10       ` Xia, Chenbo
2021-01-19 21:25 ` [dpdk-dev] [PATCH v2 44/44] net/virtio: handle Virtio-user setup failure properly Maxime Coquelin
2021-01-22  9:24   ` Xia, Chenbo
2021-01-25 16:16     ` Maxime Coquelin

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This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git