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Re: [Qemu-devel] [PATCH COLO-Frame v16 32/35] net: Add notifier/callback
From: |
Jason Wang |
Subject: |
Re: [Qemu-devel] [PATCH COLO-Frame v16 32/35] net: Add notifier/callback for netdev init |
Date: |
Tue, 26 Apr 2016 14:59:18 +0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 |
On 04/21/2016 08:30 AM, Hailiang Zhang wrote:
> ping ... ?
>
> Hi Jason,
>
> Any comments on the net parts ?
Looks good overall, just few nits.
Thanks
>
> Thanks,
> Hailiang
>
> On 2016/4/8 14:26, zhanghailiang wrote:
>> 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 <address@hidden>
>> Cc: Jason Wang <address@hidden>
>> Cc: Yang Hongyang <address@hidden>
>> ---
>> 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 73e4c46..d8abe7a 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 MAX_QUEUE_NUM 1024
>>
>> @@ -176,6 +177,8 @@ struct NICInfo {
>> int nvectors;
>> };
>>
>> +void netdev_init_add_notifier(Notifier *notify);
>> +
>> extern int nb_nics;
>> extern NICInfo nd_table[MAX_NICS];
>> extern int default_net;
>> diff --git a/net/net.c b/net/net.c
>> index 0ad6217..6d846f4 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",
>> @@ -931,6 +934,10 @@ static int net_init_nic(const NetClientOptions
>> *opts, const char *name,
>> return idx;
>> }
>>
>> +void netdev_init_add_notifier(Notifier *notify)
>> +{
>> + notifier_list_add(&netdev_init_notifiers, notify);
>> +}
>>
>> static int (* const
>> net_client_init_fun[NET_CLIENT_OPTIONS_KIND__MAX])(
>> const NetClientOptions *opts,
>> @@ -1017,6 +1024,11 @@ static int net_client_init1(const void
>> *object, int is_netdev, Error **errp)
>> }
>> return -1;
>> }
>> + if (is_netdev) {
>> + const Netdev *netdev = object;
>> +
>> + notifier_list_notify(&netdev_init_notifiers, netdev->id);
>> + }
>> return 0;
>> }
>>
>>
>
>
- Re: [Qemu-devel] [PATCH COLO-Frame v16 21/35] qmp event: Add COLO_EXIT event to notify users while exited from COLO, (continued)
- [Qemu-devel] [PATCH COLO-Frame v16 19/35] COLO: Implement failover work for Primary VM, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 11/35] COLO: Load PVM's dirty pages into SVM's RAM cache temporarily, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 17/35] COLO failover: Introduce a new command to trigger a failover, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 18/35] COLO failover: Introduce state to record failover process, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 25/35] COLO: Update the global runstate after going into colo state, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 30/35] COLO: Split qemu_savevm_state_begin out of checkpoint process, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 32/35] net: Add notifier/callback for netdev init, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 15/35] COLO: Add checkpoint-delay parameter for migrate-set-parameters, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 08/35] COLO: Add a new RunState RUN_STATE_COLO, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 31/35] filter-buffer: Accept zero interval, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 29/35] COLO: Separate the process of saving/loading ram and device state, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 34/35] COLO: manage the status of buffer filters for PVM, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 35/35] COLO: Add block replication into colo process, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 33/35] COLO/filter: add each netdev a buffer filter, zhanghailiang, 2016/04/08
- [Qemu-devel] [PATCH COLO-Frame v16 22/35] COLO failover: Shutdown related socket fd when do failover, zhanghailiang, 2016/04/08