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IB/core: Map iWarp AH type to undefined in rdma_ah_find_type 

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: 44c58487d5 ("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>
This commit is contained in:
Don Hiatt 2018-02-01 10:57:03 -08:00 committed by Jason Gunthorpe
parent 1029361084
commit 87daac68f7
1 changed files with 14 additions and 6 deletions
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18
include/rdma/ib_verbs.h
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@ -874,6 +874,7 @@ struct ib_mr_status {
__attribute_const__ enum ib_rate mult_to_ib_rate(int mult); __attribute_const__ enum ib_rate mult_to_ib_rate(int mult);
enum rdma_ah_attr_type { enum rdma_ah_attr_type {
RDMA_AH_ATTR_TYPE_UNDEFINED,
RDMA_AH_ATTR_TYPE_IB, RDMA_AH_ATTR_TYPE_IB,
RDMA_AH_ATTR_TYPE_ROCE, RDMA_AH_ATTR_TYPE_ROCE,
RDMA_AH_ATTR_TYPE_OPA, 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; 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, 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)) if (rdma_protocol_roce(dev, port_num))
return RDMA_AH_ATTR_TYPE_ROCE; return RDMA_AH_ATTR_TYPE_ROCE;
else if ((rdma_protocol_ib(dev, port_num)) && if (rdma_protocol_ib(dev, port_num)) {
(rdma_cap_opa_ah(dev, port_num))) if (rdma_cap_opa_ah(dev, port_num))
return RDMA_AH_ATTR_TYPE_OPA; return RDMA_AH_ATTR_TYPE_OPA;
else
return RDMA_AH_ATTR_TYPE_IB; return RDMA_AH_ATTR_TYPE_IB;
} }
return RDMA_AH_ATTR_TYPE_UNDEFINED;
}
/** /**
* ib_lid_cpu16 - Return lid in 16bit CPU encoding. * ib_lid_cpu16 - Return lid in 16bit CPU encoding.
* In the current implementation the only way to get * In the current implementation the only way to get