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SubjectRe: [PATCH v5 17/27] IB/Verbs: Use management helper cap_ib_smi()
On Mon, Apr 20, 2015 at 10:39:37AM +0200, Michael Wang wrote:
>
> Introduce helper cap_ib_smi() to help us check if the port of an
> IB device support Infiniband Subnet Management Interface.
>
> Cc: Hal Rosenstock <hal@dev.mellanox.co.il>
> Cc: Steve Wise <swise@opengridcomputing.com>
> Cc: Tom Talpey <tom@talpey.com>
> Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
> Cc: Doug Ledford <dledford@redhat.com>
> Cc: Ira Weiny <ira.weiny@intel.com>
> Cc: Sean Hefty <sean.hefty@intel.com>
> Signed-off-by: Michael Wang <yun.wang@profitbricks.com>

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

> ---
> drivers/infiniband/core/agent.c | 2 +-
> drivers/infiniband/core/mad.c | 2 +-
> include/rdma/ib_verbs.h | 15 +++++++++++++++
> 3 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/infiniband/core/agent.c b/drivers/infiniband/core/agent.c
> index ffdef4d..61471ee 100644
> --- a/drivers/infiniband/core/agent.c
> +++ b/drivers/infiniband/core/agent.c
> @@ -156,7 +156,7 @@ int ib_agent_port_open(struct ib_device *device, int port_num)
> goto error1;
> }
>
> - if (rdma_tech_ib(device, port_num)) {
> + if (cap_ib_smi(device, port_num)) {
> /* Obtain send only MAD agent for SMI QP */
> port_priv->agent[0] = ib_register_mad_agent(device, port_num,
> IB_QPT_SMI, NULL, 0,
> diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
> index 4315aeb..ee3a05e 100644
> --- a/drivers/infiniband/core/mad.c
> +++ b/drivers/infiniband/core/mad.c
> @@ -2938,7 +2938,7 @@ static int ib_mad_port_open(struct ib_device *device,
> init_mad_qp(port_priv, &port_priv->qp_info[1]);
>
> cq_size = mad_sendq_size + mad_recvq_size;
> - has_smi = rdma_tech_ib(device, port_num);
> + has_smi = cap_ib_smi(device, port_num);
> if (has_smi)
> cq_size *= 2;
>
> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> index 624e963..873b9a6 100644
> --- a/include/rdma/ib_verbs.h
> +++ b/include/rdma/ib_verbs.h
> @@ -1788,6 +1788,21 @@ static inline int cap_ib_mad(struct ib_device *device, u8 port_num)
> return rdma_ib_or_iboe(device, port_num);
> }
>
> +/**
> + * cap_ib_smi - Check if the port of device has the capability Infiniband
> + * Subnet Management Interface.
> + *
> + * @device: Device to be checked
> + * @port_num: Port number of the device
> + *
> + * Return 0 when port of the device don't support Infiniband
> + * Subnet Management Interface.
> + */
> +static inline int cap_ib_smi(struct ib_device *device, u8 port_num)
> +{
> + return rdma_tech_ib(device, port_num);
> +}
> +
> int ib_query_gid(struct ib_device *device,
> u8 port_num, int index, union ib_gid *gid);
>
> --
> 2.1.0


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