On 03/30/2015 06:13 PM, Doug Ledford wrote:
> On Fri, 2015-03-27 at 16:47 +0100, Michael Wang wrote:
>> Introduce helper has_iwarp() to help us check if an IB device
>> support IWARP protocol.
> This is a needless redirection. Just stick with the original
> rdma_transport_is_iwarp().
Agree, will leave it there :-)
Regards,
Michael Wang
>
>> Cc: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
>> Cc: Doug Ledford <dledford@xxxxxxxxxx>
>> Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
>> Cc: Sean Hefty <sean.hefty@xxxxxxxxx>
>> Signed-off-by: Michael Wang <yun.wang@xxxxxxxxxxxxxxxx>
>> ---
>> include/rdma/ib_verbs.h | 13 +++++++++++++
>> net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 2 +-
>> 2 files changed, 14 insertions(+), 1 deletion(-)
>>
>> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
>> index e796104..0ef9cd7 100644
>> --- a/include/rdma/ib_verbs.h
>> +++ b/include/rdma/ib_verbs.h
>> @@ -1836,6 +1836,19 @@ static inline int has_mcast(struct ib_device *device)
>> }
>>
>> /**
>> + * has_iwarp - Check if a device support IWARP protocol.
>> + *
>> + * @device: Device to be checked
>> + *
>> + * Return 0 when a device has none port to support
>> + * IWARP protocol.
>> + */
>> +static inline int has_iwarp(struct ib_device *device)
>> +{
>> + return rdma_transport_is_iwarp(device);
>> +}
>> +
>> +/**
>> * cap_smi - Check if the port of device has the capability
>> * Subnet Management Interface.
>> *
>> diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
>> index a7b5891..48aeb5e 100644
>> --- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
>> +++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
>> @@ -118,7 +118,7 @@ static void rdma_build_arg_xdr(struct svc_rqst *rqstp,
>>
>> static int rdma_read_max_sge(struct svcxprt_rdma *xprt, int sge_count)
>> {
>> - if (rdma_transport_is_iwarp(xprt->sc_cm_id->device))
>> + if (has_iwarp(xprt->sc_cm_id->device))
>> return 1;
>> else
>> return min_t(int, sge_count, xprt->sc_max_sge);
>
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