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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com,
	jfreimann@redhat.com, nicknickolaev@gmail.com,
	i.maximets@samsung.com, bruce.richardson@intel.com,
	alejandro.lucero@netronome.com
Cc: dgilbert@redhat.com, stable@dpdk.org,
	Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH v5 12/19] vhost: add support for postcopy's listen message
Date: Tue,  9 Oct 2018 22:54:19 +0200	[thread overview]
Message-ID: <20181009205426.21219-13-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20181009205426.21219-1-maxime.coquelin@redhat.com>

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/librte_vhost/vhost.h      |  1 +
 lib/librte_vhost/vhost_user.c | 21 +++++++++++++++++++++
 lib/librte_vhost/vhost_user.h |  3 ++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 4c591a410..702be37ff 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -359,6 +359,7 @@ 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 651320f9a..35fb4a773 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 04295d9a6..9c5cde639 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 {
-- 
2.17.1

  parent reply	other threads:[~2018-10-09 20:55 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-09 20:54 [dpdk-dev] [PATCH v5 00/19] vhost: add postcopy live-migration support Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 01/19] vhost: fix messages results handling Maxime Coquelin
2018-10-10  7:25   ` Maxime Coquelin
2018-10-11  9:32     ` Ilya Maximets
2018-10-11  9:36       ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 02/19] vhost: fix return code of messages requiring replies Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 03/19] vhost: clarify reply-ack in case a reply was already sent Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 04/19] vhost: fix payload size of reply Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 05/19] vhost: fix error handling when mem table gets updated Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 06/19] vhost: define postcopy protocol flag Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 07/19] vhost: add number of fds to vhost-user messages and use it Maxime Coquelin
2018-10-10 10:06   ` Tiwei Bie
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 08/19] vhost: pass socket fd to message handling callbacks Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 09/19] vhost: enable fds passing when sending vhost-user messages Maxime Coquelin
2018-10-10 10:09   ` Tiwei Bie
2018-10-10 10:26     ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 10/19] vhost: add config flag for postcopy feature Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 11/19] vhost: introduce postcopy's advise message Maxime Coquelin
2018-10-09 20:54 ` Maxime Coquelin [this message]
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 13/19] vhost: register new regions with userfaultfd Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 14/19] vhost: avoid useless VhostUserMemory copy Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 15/19] vhost: send userfault range addresses back to qemu Maxime Coquelin
2018-10-10 10:13   ` Tiwei Bie
2018-10-10 10:25     ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 16/19] vhost: add support to postcopy's end request Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 17/19] vhost: restrict postcopy live-migration enablement Maxime Coquelin
2018-10-10 10:17   ` Tiwei Bie
2018-10-10 10:23     ` Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 18/19] net/vhost: add parameter to enable postcopy support Maxime Coquelin
2018-10-09 20:54 ` [dpdk-dev] [PATCH v5 19/19] vhost: enable postcopy protocol feature Maxime Coquelin

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