linux-kernel - Re: [PATCH v5 07/27] IB/Verbs: Reform IB-ulp ipoib

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Date:	Tue, 21 Apr 2015 20:06:27 -0400
From:	"ira.weiny" <ira.weiny@...el.com>
To:	Michael Wang <yun.wang@...fitbricks.com>
Cc:	Roland Dreier <roland@...nel.org>,
	Sean Hefty <sean.hefty@...el.com>, linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org, hal@....mellanox.co.il,
	Tom Tucker <tom@...ngridcomputing.com>,
	Steve Wise <swise@...ngridcomputing.com>,
	Hoang-Nam Nguyen <hnguyen@...ibm.com>,
	Christoph Raisch <raisch@...ibm.com>,
	Mike Marciniszyn <infinipath@...el.com>,
	Eli Cohen <eli@...lanox.com>,
	Faisal Latif <faisal.latif@...el.com>,
	Jack Morgenstein <jackm@....mellanox.co.il>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	Haggai Eran <haggaie@...lanox.com>,
	Tom Talpey <tom@...pey.com>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Doug Ledford <dledford@...hat.com>
Subject: Re: [PATCH v5 07/27] IB/Verbs: Reform IB-ulp ipoib

On Mon, Apr 20, 2015 at 10:35:15AM +0200, Michael Wang wrote:
> 
> Use raw management helpers to reform IB-ulp ipoib.
> 
> Cc: Hal Rosenstock <hal@....mellanox.co.il>
> Cc: Steve Wise <swise@...ngridcomputing.com>
> Cc: Tom Talpey <tom@...pey.com>
> Cc: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
> Cc: Doug Ledford <dledford@...hat.com>
> Cc: Ira Weiny <ira.weiny@...el.com>
> Cc: Sean Hefty <sean.hefty@...el.com>
> Signed-off-by: Michael Wang <yun.wang@...fitbricks.com>

Reviewed-by: Ira Weiny <ira.weiny@...el.com>

> ---
>  drivers/infiniband/ulp/ipoib/ipoib_main.c | 15 ++++++++-------
>  1 file changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
> index 58b5aa3..60b379d 100644
> --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
> +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
> @@ -1654,9 +1654,7 @@ static void ipoib_add_one(struct ib_device *device)
>  	struct net_device *dev;
>  	struct ipoib_dev_priv *priv;
>  	int s, e, p;
> -
> -	if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB)
> -		return;
> +	int count = 0;
>  
>  	dev_list = kmalloc(sizeof *dev_list, GFP_KERNEL);
>  	if (!dev_list)
> @@ -1673,15 +1671,21 @@ static void ipoib_add_one(struct ib_device *device)
>  	}
>  
>  	for (p = s; p <= e; ++p) {
> -		if (rdma_port_get_link_layer(device, p) != IB_LINK_LAYER_INFINIBAND)
> +		if (!rdma_tech_ib(device, p))
>  			continue;
>  		dev = ipoib_add_port("ib%d", device, p);
>  		if (!IS_ERR(dev)) {
>  			priv = netdev_priv(dev);
>  			list_add_tail(&priv->list, dev_list);
> +			count++;
>  		}
>  	}
>  
> +	if (!count) {
> +		kfree(dev_list);
> +		return;
> +	}
> +
>  	ib_set_client_data(device, &ipoib_client, dev_list);
>  }
>  
> @@ -1690,9 +1694,6 @@ static void ipoib_remove_one(struct ib_device *device)
>  	struct ipoib_dev_priv *priv, *tmp;
>  	struct list_head *dev_list;
>  
> -	if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB)
> -		return;
> -
>  	dev_list = ib_get_client_data(device, &ipoib_client);
>  	if (!dev_list)
>  		return;
> -- 
> 2.1.0
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