IB/core: Map iWarp AH type to undefined in rdma_ah_find_type (87daac68) · Commits · 戴 / test

iWarp devices do not support the creation of address handles so return AH_ATTR_TYPE_UNDEFINED for all iWarp devices. While we are here reduce the size of port_num to u8 and add a comment. Fixes: ("IB/core: Define 'ib' and 'roce' rdma_ah_attr types") Reported-by:

Parav Pandit <parav@mellanox.com> CC: Sean Hefty <sean.hefty@intel.com> Reviewed-by:

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

Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:

Don Hiatt <don.hiatt@intel.com> Signed-off-by:

Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:

Jason Gunthorpe <jgg@mellanox.com>

include/rdma/ib_verbs.h

+14 −6

Original line number	Diff line number	Diff line
		@@ -874,6 +874,7 @@ struct ib_mr_status {
		__attribute_const__ enum ib_rate mult_to_ib_rate(int mult);

		enum rdma_ah_attr_type {
		RDMA_AH_ATTR_TYPE_UNDEFINED,
		RDMA_AH_ATTR_TYPE_IB,
		RDMA_AH_ATTR_TYPE_ROCE,
		RDMA_AH_ATTR_TYPE_OPA,
		@@ -3810,19 +3811,26 @@ static inline void rdma_ah_set_grh(struct rdma_ah_attr *attr,
		grh->traffic_class = traffic_class;
		}

		/Get AH type /
		/**
		* rdma_ah_find_type - Return address handle type.
		*
		* @dev: Device to be checked
		* @port_num: Port number
		*/
		static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev,
		u32 port_num)
		u8 port_num)
		{
		if (rdma_protocol_roce(dev, port_num))
		return RDMA_AH_ATTR_TYPE_ROCE;
		else if ((rdma_protocol_ib(dev, port_num)) &&
		(rdma_cap_opa_ah(dev, port_num)))
		if (rdma_protocol_ib(dev, port_num)) {
		if (rdma_cap_opa_ah(dev, port_num))
		return RDMA_AH_ATTR_TYPE_OPA;
		else
		return RDMA_AH_ATTR_TYPE_IB;
		}

		return RDMA_AH_ATTR_TYPE_UNDEFINED;
		}

		/**
		* ib_lid_cpu16 - Return lid in 16bit CPU encoding.
		* In the current implementation the only way to get

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