netdev - Re: [PATCH rdma-next v1 09/12] IB/mlx5: Register DEVX with mlx5

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Message-ID: <3bc6780f-5c3e-b121-e4ea-f7b8f00cbd13@dev.mellanox.co.il>
Date:   Mon, 24 Jun 2019 16:36:44 +0300
From:   Yishai Hadas <yishaih@....mellanox.co.il>
To:     Jason Gunthorpe <jgg@...lanox.com>
Cc:     Leon Romanovsky <leon@...nel.org>,
        Doug Ledford <dledford@...hat.com>,
        Leon Romanovsky <leonro@...lanox.com>,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Yishai Hadas <yishaih@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        linux-netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH rdma-next v1 09/12] IB/mlx5: Register DEVX with mlx5_core
 to get async events

On 6/24/2019 2:52 PM, Jason Gunthorpe wrote:
> On Tue, Jun 18, 2019 at 08:15:37PM +0300, Leon Romanovsky wrote:
>>   void __mlx5_ib_remove(struct mlx5_ib_dev *dev,
>> diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
>> index 9cf23ae6324e..556af34b788b 100644
>> +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
>> @@ -944,6 +944,13 @@ struct mlx5_ib_pf_eq {
>>   	mempool_t *pool;
>>   };
>>   
>> +struct mlx5_devx_event_table {
>> +	struct mlx5_nb devx_nb;
>> +	/* serialize updating the event_xa */
>> +	struct mutex event_xa_lock;
>> +	struct xarray event_xa;
>> +};
>> +
>>   struct mlx5_ib_dev {
>>   	struct ib_device		ib_dev;
>>   	struct mlx5_core_dev		*mdev;
>> @@ -994,6 +1001,7 @@ struct mlx5_ib_dev {
>>   	struct mlx5_srq_table   srq_table;
>>   	struct mlx5_async_ctx   async_ctx;
>>   	int			free_port;
>> +	struct mlx5_devx_event_table devx_event_table;
> 
> I really question if adding all these structs really does anything for
> readability..
> 

I would prefer this option to add only one structure (i.e. 
mlx5_devx_event_table) on ib_dev, it will hold internally the other 
related stuff.