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authorMaxime Coquelin <maxime.coquelin@redhat.com>2018-10-12 14:40:40 +0200
committerFerruh Yigit <ferruh.yigit@intel.com>2018-10-18 10:24:39 +0200
commit25807d6893d3cb13f68188ae17ef9d1b5b5cb8db (patch)
tree0ba3c36b6c76d5ae0d596403dcc63a47e894345a /lib/librte_vhost
parent9eefef3b5970f1e2f13d9a72e1fcd9990ad19c8a (diff)
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vhost: support postcopy listen message
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Diffstat (limited to 'lib/librte_vhost')
-rw-r--r--lib/librte_vhost/vhost.h1
-rw-r--r--lib/librte_vhost/vhost_user.c21
-rw-r--r--lib/librte_vhost/vhost_user.h3
3 files changed, 24 insertions, 1 deletions
diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index d81da06..b4abad3 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -369,6 +369,7 @@ struct virtio_net {
rte_spinlock_t slave_req_lock;
int postcopy_ufd;
+ int postcopy_listening;
/*
* Device id to identify a specific backend device.
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 970ad58..0515892 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -76,6 +76,7 @@ static const char *vhost_message_str[VHOST_USER_MAX] = {
[VHOST_USER_CRYPTO_CREATE_SESS] = "VHOST_USER_CRYPTO_CREATE_SESS",
[VHOST_USER_CRYPTO_CLOSE_SESS] = "VHOST_USER_CRYPTO_CLOSE_SESS",
[VHOST_USER_POSTCOPY_ADVISE] = "VHOST_USER_POSTCOPY_ADVISE",
+ [VHOST_USER_POSTCOPY_LISTEN] = "VHOST_USER_POSTCOPY_LISTEN",
};
static uint64_t
@@ -132,6 +133,8 @@ vhost_backend_cleanup(struct virtio_net *dev)
close(dev->postcopy_ufd);
dev->postcopy_ufd = -1;
}
+
+ dev->postcopy_listening = 0;
}
/*
@@ -1549,6 +1552,23 @@ vhost_user_set_postcopy_advise(struct virtio_net **pdev,
#endif
}
+static int
+vhost_user_set_postcopy_listen(struct virtio_net **pdev,
+ struct VhostUserMsg *msg __rte_unused,
+ int main_fd __rte_unused)
+{
+ struct virtio_net *dev = *pdev;
+
+ if (dev->mem && dev->mem->nregions) {
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "Regions already registered at postcopy-listen\n");
+ return VH_RESULT_ERR;
+ }
+ dev->postcopy_listening = 1;
+
+ return VH_RESULT_OK;
+}
+
typedef int (*vhost_message_handler_t)(struct virtio_net **pdev,
struct VhostUserMsg *msg,
int main_fd);
@@ -1577,6 +1597,7 @@ static vhost_message_handler_t vhost_message_handlers[VHOST_USER_MAX] = {
[VHOST_USER_SET_SLAVE_REQ_FD] = vhost_user_set_req_fd,
[VHOST_USER_IOTLB_MSG] = vhost_user_iotlb_msg,
[VHOST_USER_POSTCOPY_ADVISE] = vhost_user_set_postcopy_advise,
+ [VHOST_USER_POSTCOPY_LISTEN] = vhost_user_set_postcopy_listen,
};
diff --git a/lib/librte_vhost/vhost_user.h b/lib/librte_vhost/vhost_user.h
index 2030b40..55d8659 100644
--- a/lib/librte_vhost/vhost_user.h
+++ b/lib/librte_vhost/vhost_user.h
@@ -51,7 +51,8 @@ typedef enum VhostUserRequest {
VHOST_USER_CRYPTO_CREATE_SESS = 26,
VHOST_USER_CRYPTO_CLOSE_SESS = 27,
VHOST_USER_POSTCOPY_ADVISE = 28,
- VHOST_USER_MAX = 29
+ VHOST_USER_POSTCOPY_LISTEN = 29,
+ VHOST_USER_MAX = 30
} VhostUserRequest;
typedef enum VhostUserSlaveRequest {