korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 12:28:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

vdpa_sim: make IOTLB entries limit configurable

Browse Source 
Some devices may require a higher limit for the number of IOTLB
entries, so let's make it configurable through a module parameter.

By default, it's initialized with the current limit (2048).

Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20201215144256.155342-5-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefano Garzarella 2020-12-15 15:42:42 +01:00 committed by Michael S. Tsirkin
parent 423248d60d
commit 2fc0ebfa03
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/vdpa/vdpa_sim/vdpa_sim.c
View File

@ -31,6 +31,11 @@ static int batch_mapping = 1;
module_param(batch_mapping, int, 0444);
MODULE_PARM_DESC(batch_mapping, "Batched mapping 1 -Enable; 0 - Disable");
static int max_iotlb_entries = 2048;
module_param(max_iotlb_entries, int, 0444);
MODULE_PARM_DESC(max_iotlb_entries,
"Maximum number of iotlb entries. 0 means unlimited. (default: 2048)");
static char *macaddr;
module_param(macaddr, charp, 0);
MODULE_PARM_DESC(macaddr, "Ethernet MAC address");
@ -371,7 +376,7 @@ static struct vdpasim *vdpasim_create(void)
if (!vdpasim->vqs)
goto err_iommu;
vdpasim->iommu = vhost_iotlb_alloc(2048, 0);
vdpasim->iommu = vhost_iotlb_alloc(max_iotlb_entries, 0);
if (!vdpasim->iommu)
goto err_iommu;