From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60960) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bUvGQ-0000oM-Um for qemu-devel@nongnu.org; Wed, 03 Aug 2016 08:27:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bUvGM-0006dM-N3 for qemu-devel@nongnu.org; Wed, 03 Aug 2016 08:27:10 -0400 Received: from szxga01-in.huawei.com ([58.251.152.64]:30681) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bUvGL-0006cD-Rb for qemu-devel@nongnu.org; Wed, 03 Aug 2016 08:27:06 -0400 From: zhanghailiang Date: Wed, 3 Aug 2016 20:26:09 +0800 Message-ID: <1470227172-13704-32-git-send-email-zhang.zhanghailiang@huawei.com> In-Reply-To: <1470227172-13704-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1470227172-13704-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH COLO-Frame v18 31/34] net: Add notifier/callback for netdev init List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: amit.shah@redhat.com, quintela@redhat.com, dgilbert@redhat.com, peter.huangpeng@huawei.com, eddie.dong@intel.com, wency@cn.fujitsu.com, lizhijian@cn.fujitsu.com, zhangchen.fnst@cn.fujitsu.com, xiecl.fnst@cn.fujitsu.com, zhanghailiang , Jason Wang , Yang Hongyang We can register some callback for this notifier, this will be used by COLO to register a callback which will add each netdev a buffer filter. Signed-off-by: zhanghailiang Cc: Jason Wang Cc: Yang Hongyang --- v17: - Rename netdev_init_add_notifier() to netdev_register_init_notifier() v16: - Simplify the codes by using some helpers in QEMU v14: - New patch --- include/net/net.h | 3 +++ net/net.c | 12 ++++++++++++ 2 files changed, 15 insertions(+) diff --git a/include/net/net.h b/include/net/net.h index e8d9e9e..b67fe20 100644 --- a/include/net/net.h +++ b/include/net/net.h @@ -8,6 +8,7 @@ #include "net/queue.h" #include "migration/vmstate.h" #include "qapi-types.h" +#include "qemu/notify.h" #define MAC_FMT "%02X:%02X:%02X:%02X:%02X:%02X" #define MAC_ARG(x) ((uint8_t *)(x))[0], ((uint8_t *)(x))[1], \ @@ -195,6 +196,8 @@ struct NICInfo { int nvectors; }; +void netdev_register_init_notifier(Notifier *notify); + extern int nb_nics; extern NICInfo nd_table[MAX_NICS]; extern const char *host_net_devices[]; diff --git a/net/net.c b/net/net.c index c124b11..4e8268d 100644 --- a/net/net.c +++ b/net/net.c @@ -56,6 +56,9 @@ static VMChangeStateEntry *net_change_state_entry; static QTAILQ_HEAD(, NetClientState) net_clients; +static NotifierList netdev_init_notifiers = + NOTIFIER_LIST_INITIALIZER(netdev_init_notifiers); + const char *host_net_devices[] = { "tap", "socket", @@ -929,6 +932,10 @@ static int net_init_nic(const Netdev *netdev, const char *name, return idx; } +void netdev_register_init_notifier(Notifier *notify) +{ + notifier_list_add(&netdev_init_notifiers, notify); +} static int (* const net_client_init_fun[NET_CLIENT_DRIVER__MAX])( const Netdev *netdev, @@ -1056,6 +1063,11 @@ static int net_client_init1(const void *object, bool is_netdev, Error **errp) } return -1; } + if (is_netdev) { + const Netdev *netdev = object; + + notifier_list_notify(&netdev_init_notifiers, netdev->id); + } return 0; } -- 1.8.3.1