Thread (8 messages) 8 messages, 5 authors, 2017-04-01

RE: [PATCH 1/6] virtio: wrap find_vqs

From: "Gonglei (Arei)" <arei.gonglei@huawei.com>
Date: 2017-03-30 00:51:20
Also in: dri-devel, kvm, linux-crypto, linux-remoteproc, linux-scsi, lkml 

-----Original Message-----
From: Michael S. Tsirkin [mailto:mst@redhat.com]
Sent: Thursday, March 30, 2017 4:49 AM
Subject: [PATCH 1/6] virtio: wrap find_vqs

We are going to add more parameters to find_vqs, let's wrap the call so
we don't need to tweak all drivers every time.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/block/virtio_blk.c                 | 3 +--
 drivers/char/virtio_console.c              | 6 +++---
 drivers/crypto/virtio/virtio_crypto_core.c | 3 +--
 drivers/gpu/drm/virtio/virtgpu_kms.c       | 3 +--
 drivers/net/caif/caif_virtio.c             | 3 +--
 drivers/net/virtio_net.c                   | 3 +--
 drivers/rpmsg/virtio_rpmsg_bus.c           | 2 +-
 drivers/scsi/virtio_scsi.c                 | 3 +--
 drivers/virtio/virtio_balloon.c            | 3 +--
 drivers/virtio/virtio_input.c              | 3 +--
 include/linux/virtio_config.h              | 9 +++++++++
 net/vmw_vsock/virtio_transport.c           | 6 +++---
 12 files changed, 24 insertions(+), 23 deletions(-)
Acked-by: Gonglei <arei.gonglei@huawei.com>


quoted hunk ↗ jump to hunk
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 1d4c9f8..c08c30c 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -455,8 +455,7 @@ static int init_vq(struct virtio_blk *vblk)
 	}

 	/* Discover virtqueues and write information to configuration.  */
-	err = vdev->config->find_vqs(vdev, num_vqs, vqs, callbacks, names,
-			&desc);
+	err = virtio_find_vqs(vdev, num_vqs, vqs, callbacks, names, &desc);
 	if (err)
 		goto out;

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index e9b7e0b..5da4c8e 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1945,9 +1945,9 @@ static int init_vqs(struct ports_device *portdev)
 		}
 	}
 	/* Find the queues. */
-	err = portdev->vdev->config->find_vqs(portdev->vdev, nr_queues, vqs,
-					      io_callbacks,
-					      (const char **)io_names, NULL);
+	err = virtio_find_vqs(portdev->vdev, nr_queues, vqs,
+			      io_callbacks,
+			      (const char **)io_names, NULL);
 	if (err)
 		goto free;

diff --git a/drivers/crypto/virtio/virtio_crypto_core.c
b/drivers/crypto/virtio/virtio_crypto_core.c
index 21472e4..a111cd72 100644
--- a/drivers/crypto/virtio/virtio_crypto_core.c
+++ b/drivers/crypto/virtio/virtio_crypto_core.c
@@ -119,8 +119,7 @@ static int virtcrypto_find_vqs(struct virtio_crypto *vi)
 		names[i] = vi->data_vq[i].name;
 	}

-	ret = vi->vdev->config->find_vqs(vi->vdev, total_vqs, vqs, callbacks,
-					 names, NULL);
+	ret = virtio_find_vqs(vi->vdev, total_vqs, vqs, callbacks, names, NULL);
 	if (ret)
 		goto err_find;

diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c
b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 4918668..1e1c90b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -175,8 +175,7 @@ int virtio_gpu_driver_load(struct drm_device *dev,
unsigned long flags)
 	DRM_INFO("virgl 3d acceleration not supported by guest\n");
 #endif

-	ret = vgdev->vdev->config->find_vqs(vgdev->vdev, 2, vqs,
-					    callbacks, names, NULL);
+	ret = virtio_find_vqs(vgdev->vdev, 2, vqs, callbacks, names, NULL);
 	if (ret) {
 		DRM_ERROR("failed to find virt queues\n");
 		goto err_vqs;
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index bc0eb47..6122768 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -679,8 +679,7 @@ static int cfv_probe(struct virtio_device *vdev)
 		goto err;

 	/* Get the TX virtio ring. This is a "guest side vring". */
-	err = vdev->config->find_vqs(vdev, 1, &cfv->vq_tx, &vq_cbs, &names,
-			NULL);
+	err = virtio_find_vqs(vdev, 1, &cfv->vq_tx, &vq_cbs, &names, NULL);
 	if (err)
 		goto err;

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ea9890d..6802169 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2079,8 +2079,7 @@ static int virtnet_find_vqs(struct virtnet_info *vi)
 		names[txq2vq(i)] = vi->sq[i].name;
 	}

-	ret = vi->vdev->config->find_vqs(vi->vdev, total_vqs, vqs, callbacks,
-					 names, NULL);
+	ret = virtio_find_vqs(vi->vdev, total_vqs, vqs, callbacks, names, NULL);
 	if (ret)
 		goto err_find;

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c
b/drivers/rpmsg/virtio_rpmsg_bus.c
index 5e66e08..f7cade0 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -869,7 +869,7 @@ static int rpmsg_probe(struct virtio_device *vdev)
 	init_waitqueue_head(&vrp->sendq);

 	/* We expect two virtqueues, rx and tx (and in this order) */
-	err = vdev->config->find_vqs(vdev, 2, vqs, vq_cbs, names, NULL);
+	err = virtio_find_vqs(vdev, 2, vqs, vq_cbs, names, NULL);
 	if (err)
 		goto free_vrp;

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 939c47d..e9222dc 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -870,8 +870,7 @@ static int virtscsi_init(struct virtio_device *vdev,
 	}

 	/* Discover virtqueues and write information to configuration.  */
-	err = vdev->config->find_vqs(vdev, num_vqs, vqs, callbacks, names,
-			&desc);
+	err = virtio_find_vqs(vdev, num_vqs, vqs, callbacks, names, &desc);
 	if (err)
 		goto out;

diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 34adf9b..408c174 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -418,8 +418,7 @@ static int init_vqs(struct virtio_balloon *vb)
 	 * optionally stat.
 	 */
 	nvqs = virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_STATS_VQ) ? 3 :
2;
-	err = vb->vdev->config->find_vqs(vb->vdev, nvqs, vqs, callbacks, names,
-			NULL);
+	err = virtio_find_vqs(vb->vdev, nvqs, vqs, callbacks, names, NULL);
 	if (err)
 		return err;

diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c
index 79f1293..3a0468f 100644
--- a/drivers/virtio/virtio_input.c
+++ b/drivers/virtio/virtio_input.c
@@ -173,8 +173,7 @@ static int virtinput_init_vqs(struct virtio_input *vi)
 	static const char * const names[] = { "events", "status" };
 	int err;

-	err = vi->vdev->config->find_vqs(vi->vdev, 2, vqs, cbs, names,
-			NULL);
+	err = virtio_find_vqs(vi->vdev, 2, vqs, cbs, names, NULL);
 	if (err)
 		return err;
 	vi->evt = vqs[0];
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 8355bab..47f3d80 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -179,6 +179,15 @@ struct virtqueue *virtio_find_single_vq(struct
virtio_device *vdev,
 	return vq;
 }

+static inline
+int virtio_find_vqs(struct virtio_device *vdev, unsigned nvqs,
+			struct virtqueue *vqs[], vq_callback_t *callbacks[],
+			const char * const names[],
+			struct irq_affinity *desc)
+{
+	return vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names, desc);
+}
+
 /**
  * virtio_device_ready - enable vq use in probe function
  * @vdev: the device
diff --git a/net/vmw_vsock/virtio_transport.c
b/net/vmw_vsock/virtio_transport.c
index 68675a1..97e26e2 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -573,9 +573,9 @@ static int virtio_vsock_probe(struct virtio_device
*vdev)

 	vsock->vdev = vdev;

-	ret = vsock->vdev->config->find_vqs(vsock->vdev, VSOCK_VQ_MAX,
-					    vsock->vqs, callbacks, names,
-					    NULL);
+	ret = virtio_find_vqs(vsock->vdev, VSOCK_VQ_MAX,
+			      vsock->vqs, callbacks, names,
+			      NULL);
 	if (ret < 0)
 		goto out;

--
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