ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

vhost: clear desc, avail and used addresses on setting new mem table

Browse Source 
This fixes queue handling for QEMU 2.12 which is sending new memory
table but resetting only some queues

Fixes #339

Change-Id: Ic971725261720d7459e49a4f14bc15c2f2a77b1a
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/420372
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Chen Wang <chenx.wang@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Pawel Wodkowski 2018-07-25 20:09:03 +02:00 committed by Jim Harris
parent 911c12c657
commit 37e6827a85
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
lib/vhost/rte_vhost/vhost_user.c
View File

@ -584,6 +584,7 @@ vhost_setup_mem_table(struct virtio_net *dev)
{
struct VhostUserMemory memory = dev->mem_table;
struct rte_vhost_mem_region *reg;
struct vhost_virtqueue *vq;
void *mmap_addr;
uint64_t mmap_size;
uint64_t mmap_offset;
@ -597,6 +598,17 @@ vhost_setup_mem_table(struct virtio_net *dev)
dev->mem = NULL;
}
for (i = 0; i < dev->nr_vring; i++) {
vq = dev->virtqueue[i];
/* Those addresses won't be valid anymore in host address space
* after setting new mem table. Initiator need to resend these
* addresses.
*/
vq->desc = NULL;
vq->avail = NULL;
vq->used = NULL;
}
dev->nr_guest_pages = 0;
if (!dev->guest_pages) {
dev->max_guest_pages = 8;