From: Stefano Garzarella <sgarzare@redhat.com>
To: virtualization@lists.linux-foundation.org
Cc: Stefan Hajnoczi <stefanha@redhat.com>,
linux-kernel@vger.kernel.org, Laurent Vivier <lvivier@redhat.com>,
Max Gurtovoy <mgurtovoy@nvidia.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Eli Cohen <elic@nvidia.com>, Jason Wang <jasowang@redhat.com>
Subject: [PATCH v2 06/17] vdpa_sim: add struct vdpasim_dev_attr for device attributes
Date: Thu, 26 Nov 2020 15:49:39 +0100 [thread overview]
Message-ID: <20201126144950.92850-7-sgarzare@redhat.com> (raw)
In-Reply-To: <20201126144950.92850-1-sgarzare@redhat.com>
vdpasim_dev_attr will contain device specific attributes. We starting
moving the number of virtqueues (i.e. nvqs) to vdpasim_dev_attr.
vdpasim_create() creates a new vDPA simulator following the device
attributes defined in the vdpasim_dev_attr parameter.
Co-developed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 62204e064841..f98262add0e1 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -55,11 +55,16 @@ static u64 vdpasim_features = (1ULL << VIRTIO_F_ANY_LAYOUT) |
(1ULL << VIRTIO_F_ACCESS_PLATFORM) |
(1ULL << VIRTIO_NET_F_MAC);
+struct vdpasim_dev_attr {
+ int nvqs;
+};
+
/* State of each vdpasim device */
struct vdpasim {
struct vdpa_device vdpa;
struct vdpasim_virtqueue *vqs;
struct work_struct work;
+ struct vdpasim_dev_attr dev_attr;
/* spinlock to synchronize virtqueue state */
spinlock_t lock;
struct virtio_net_config config;
@@ -68,7 +73,6 @@ struct vdpasim {
u32 status;
u32 generation;
u64 features;
- int nvqs;
/* spinlock to synchronize iommu table */
spinlock_t iommu_lock;
};
@@ -133,7 +137,7 @@ static void vdpasim_reset(struct vdpasim *vdpasim)
{
int i;
- for (i = 0; i < vdpasim->nvqs; i++)
+ for (i = 0; i < vdpasim->dev_attr.nvqs; i++)
vdpasim_vq_reset(&vdpasim->vqs[i]);
spin_lock(&vdpasim->iommu_lock);
@@ -334,7 +338,7 @@ static const struct dma_map_ops vdpasim_dma_ops = {
static const struct vdpa_config_ops vdpasim_config_ops;
static const struct vdpa_config_ops vdpasim_batch_config_ops;
-static struct vdpasim *vdpasim_create(void)
+static struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr)
{
const struct vdpa_config_ops *ops;
struct vdpasim *vdpasim;
@@ -346,11 +350,12 @@ static struct vdpasim *vdpasim_create(void)
else
ops = &vdpasim_config_ops;
- vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL, ops, VDPASIM_VQ_NUM);
+ vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL, ops,
+ dev_attr->nvqs);
if (!vdpasim)
goto err_alloc;
- vdpasim->nvqs = VDPASIM_VQ_NUM;
+ vdpasim->dev_attr = *dev_attr;
INIT_WORK(&vdpasim->work, vdpasim_work);
spin_lock_init(&vdpasim->lock);
spin_lock_init(&vdpasim->iommu_lock);
@@ -361,7 +366,7 @@ static struct vdpasim *vdpasim_create(void)
goto err_iommu;
set_dma_ops(dev, &vdpasim_dma_ops);
- vdpasim->vqs = kcalloc(vdpasim->nvqs, sizeof(struct vdpasim_virtqueue),
+ vdpasim->vqs = kcalloc(dev_attr->nvqs, sizeof(struct vdpasim_virtqueue),
GFP_KERNEL);
if (!vdpasim->vqs)
goto err_iommu;
@@ -384,7 +389,7 @@ static struct vdpasim *vdpasim_create(void)
eth_random_addr(vdpasim->config.mac);
}
- for (i = 0; i < vdpasim->nvqs; i++)
+ for (i = 0; i < dev_attr->nvqs; i++)
vringh_set_iotlb(&vdpasim->vqs[i].vring, vdpasim->iommu);
vdpasim->vdpa.dma_dev = dev;
@@ -712,7 +717,11 @@ static const struct vdpa_config_ops vdpasim_batch_config_ops = {
static int __init vdpasim_dev_init(void)
{
- vdpasim_dev = vdpasim_create();
+ struct vdpasim_dev_attr dev_attr = {};
+
+ dev_attr.nvqs = VDPASIM_VQ_NUM;
+
+ vdpasim_dev = vdpasim_create(&dev_attr);
if (!IS_ERR(vdpasim_dev))
return 0;
--
2.26.2
next prev parent reply other threads:[~2020-11-26 14:50 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-26 14:49 [PATCH v2 00/17] vdpa: generalize vdpa simulator Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 01/17] vdpa: remove unnecessary 'default n' in Kconfig entries Stefano Garzarella
2020-11-30 3:01 ` Jason Wang
2020-11-26 14:49 ` [PATCH v2 02/17] vdpa_sim: remove unnecessary headers inclusion Stefano Garzarella
2020-11-30 3:04 ` Jason Wang
2020-11-30 11:10 ` Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 03/17] vdpa_sim: remove hard-coded virtq count Stefano Garzarella
2020-11-30 3:05 ` Jason Wang
2020-11-26 14:49 ` [PATCH v2 04/17] vdpa_sim: remove the limit of IOTLB entries Stefano Garzarella
2020-11-30 3:07 ` Jason Wang
2020-11-30 11:24 ` Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 05/17] vdpa_sim: rename vdpasim_config_ops variables Stefano Garzarella
2020-11-30 3:07 ` Jason Wang
2020-11-26 14:49 ` Stefano Garzarella [this message]
2020-11-30 3:09 ` [PATCH v2 06/17] vdpa_sim: add struct vdpasim_dev_attr for device attributes Jason Wang
2020-11-26 14:49 ` [PATCH v2 07/17] vdpa_sim: add device id field in vdpasim_dev_attr Stefano Garzarella
2020-11-30 3:10 ` Jason Wang
2020-11-26 14:49 ` [PATCH v2 08/17] vdpa_sim: add supported_features " Stefano Garzarella
2020-11-30 3:14 ` Jason Wang
2020-11-26 14:49 ` [PATCH v2 09/17] vdpa_sim: add work_fn " Stefano Garzarella
2020-11-30 3:16 ` Jason Wang
2020-11-26 14:49 ` [PATCH v2 10/17] vdpa_sim: store parsed MAC address in a buffer Stefano Garzarella
2020-11-30 3:20 ` Jason Wang
2020-11-26 14:49 ` [PATCH v2 11/17] vdpa_sim: make 'config' generic and usable for any device type Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 12/17] vdpa_sim: add get_config callback in vdpasim_dev_attr Stefano Garzarella
2020-11-30 3:25 ` Jason Wang
2020-11-30 14:14 ` Stefano Garzarella
2020-12-01 3:44 ` Jason Wang
2020-12-01 10:52 ` Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 13/17] vdpa_sim: set vringh notify callback Stefano Garzarella
2020-11-30 3:27 ` Jason Wang
2020-11-30 14:16 ` Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 14/17] vdpa_sim: use kvmalloc to allocate vdpasim->buffer Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 15/17] vdpa_sim: make vdpasim->buffer size configurable Stefano Garzarella
2020-11-26 14:49 ` [PATCH v2 16/17] vdpa_sim: split vdpasim_virtqueue's iov field in out_iov and in_iov Stefano Garzarella
2020-11-30 3:29 ` Jason Wang
2020-11-26 14:49 ` [PATCH v2 17/17] vdpa: split vdpasim to core and net modules Stefano Garzarella
2020-11-30 3:31 ` Jason Wang
2020-11-30 14:17 ` Stefano Garzarella
2020-11-26 15:12 ` [PATCH v2 00/17] vdpa: generalize vdpa simulator Max Gurtovoy
2020-11-26 15:24 ` Stefano Garzarella
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