linux-kernel - Re: Re: [PATCH] RDMA/rxe: Fix port state on associating netdev successfully

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Date: Wed, 3 Jan 2024 15:15:26 +0800
From: zhenwei pi <pizhenwei@...edance.com>
To: Zhu Yanjun <yanjun.zhu@...ux.dev>, zyjzyj2000@...il.com, jgg@...pe.ca,
 leon@...nel.org
Cc: linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Re: [PATCH] RDMA/rxe: Fix port state on associating netdev
 successfully



On 1/3/24 14:47, Zhu Yanjun wrote:
> 在 2024/1/3 10:01, zhenwei pi 写道:
>> Originally, after adding a RXE device successfully, the RXE device
>> gets ready, it still reports 'PORT_DOWN' state. Set the state to
>> *IB_PORT_ACTIVE* once it becomes ready to access.
> 
> IB_PORT_ACTIVE is set in the function rxe_port_up.
> 
> The followings are the call chain.
> 
> rxe_net_add -- > rxe_register_device -- > ib_register_device -- > 
> enable_device_and_get -- > rxe_enable_driver -- > rxe_set_port_state -- 
>  > rxe_port_up
> 
> In this commit, in rxe_net_add, the port->attr.state is set to 
> IB_PORT_ACTIVE.
> 
> But then in the function rxe_init_port_param, port->attr.state is set to 
> IB_PORT_DOWN again.
> 
> Zhu Yanjun
> 

Thanks, I guess anything got wrong in my env(virtual interface in a 
virtual machine), let's drop this.

>>
>> Signed-off-by: zhenwei pi <pizhenwei@...edance.com>
>> ---
>>   drivers/infiniband/sw/rxe/rxe_net.c | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/infiniband/sw/rxe/rxe_net.c 
>> b/drivers/infiniband/sw/rxe/rxe_net.c
>> index cd59666158b1..eafcb2351a7b 100644
>> --- a/drivers/infiniband/sw/rxe/rxe_net.c
>> +++ b/drivers/infiniband/sw/rxe/rxe_net.c
>> @@ -524,6 +524,7 @@ int rxe_net_add(const char *ibdev_name, struct 
>> net_device *ndev)
>>   {
>>       int err;
>>       struct rxe_dev *rxe = NULL;
>> +    struct rxe_port *port;
>>       rxe = ib_alloc_device(rxe_dev, ib_dev);
>>       if (!rxe)
>> @@ -537,6 +538,11 @@ int rxe_net_add(const char *ibdev_name, struct 
>> net_device *ndev)
>>           return err;
>>       }
>> +    if (netif_running(ndev) && netif_carrier_ok(ndev)) {
>> +        port = &rxe->port;
>> +        port->attr.state = IB_PORT_ACTIVE;
>> +    }
>> +
>>       return 0;
>>   }
> 

-- 
zhenwei pi