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

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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 <[email protected]>
CC: Sean Hefty <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
Reviewed-by: Shiraz Saleem <[email protected]>
Signed-off-by: Don Hiatt <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
This commit is contained in:
Don Hiatt 2018-02-01 10:57:03 -08:00 • committed by Jason Gunthorpe
commit 87daac68f7
1 changed files with 14 additions and 6 deletions
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20
include/rdma/ib_verbs.h
View file

@ -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,
@ -3810,17 +3811,24 @@ 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)))
return RDMA_AH_ATTR_TYPE_OPA;
else
if (rdma_protocol_ib(dev, port_num)) {
if (rdma_cap_opa_ah(dev, port_num))
return RDMA_AH_ATTR_TYPE_OPA;
return RDMA_AH_ATTR_TYPE_IB;
}
return RDMA_AH_ATTR_TYPE_UNDEFINED;
}
/**