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vhost-user: introduce shared vhost-user state

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When multi queue is enabled e.g. for a virtio-net device,
each queue pair will have a vhost_dev, and the only thing
shared between vhost devs currently is the chardev. This
patch introduces a vhost-user state structure which will
be shared by all vhost devs of the same virtio device.

Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Tiwei Bie 2018-05-24 18:33:33 +08:00 • committed by Michael S. Tsirkin
parent 5f57fbeaaf
commit 4d0cf552d3
10 changed files with 152 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

20
backends/cryptodev-vhost-user.c
View file

@ -26,6 +26,7 @@
#include "qapi/error.h"
#include "qapi/qmp/qerror.h"
#include "qemu/error-report.h"
#include "hw/virtio/vhost-user.h"
#include "standard-headers/linux/virtio_crypto.h"
#include "sysemu/cryptodev-vhost.h"
#include "chardev/char-fe.h"
@ -46,6 +47,7 @@
typedef struct CryptoDevBackendVhostUser {
CryptoDevBackend parent_obj;
VhostUserState *vhost_user;
CharBackend chr;
char *chr_name;
bool opened;
@ -102,7 +104,7 @@ cryptodev_vhost_user_start(int queues,
continue;
}
options.opaque = &s->chr;
options.opaque = s->vhost_user;
options.backend_type = VHOST_BACKEND_TYPE_USER;
options.cc = b->conf.peers.ccs[i];
s->vhost_crypto[i] = cryptodev_vhost_init(&options);
@ -185,6 +187,7 @@ static void cryptodev_vhost_user_init(
size_t i;
Error *local_err = NULL;
Chardev *chr;
VhostUserState *user;
CryptoDevBackendClient *cc;
CryptoDevBackendVhostUser *s =
CRYPTODEV_BACKEND_VHOST_USER(backend);
@ -215,6 +218,15 @@ static void cryptodev_vhost_user_init(
}
}
user = vhost_user_init();
if (!user) {
error_setg(errp, "Failed to init vhost_user");
return;
}
user->chr = &s->chr;
s->vhost_user = user;
qemu_chr_fe_set_handlers(&s->chr, NULL, NULL,
cryptodev_vhost_user_event, NULL, s, NULL, true);
@ -299,6 +311,12 @@ static void cryptodev_vhost_user_cleanup(
backend->conf.peers.ccs[i] = NULL;
}
}
if (s->vhost_user) {
vhost_user_cleanup(s->vhost_user);
g_free(s->vhost_user);
s->vhost_user = NULL;
}
}
static void cryptodev_vhost_user_set_chardev(Object *obj,