diff options
| author | Don Hiatt <don.hiatt@intel.com> | 2018-02-01 19:57:03 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-02-01 23:43:31 +0100 |
| commit | 87daac68f77a3e21a1113f816e6a7be0b38bdde8 (patch) | |
| tree | 3bee6322911da075f1c51a438958b2e4d2dfbf9b /include/rdma | |
| parent | IB/ipoib: Fix for potential no-carrier state (diff) | |
| download | linux-87daac68f77a3e21a1113f816e6a7be0b38bdde8.tar.xz linux-87daac68f77a3e21a1113f816e6a7be0b38bdde8.zip | |
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: 44c58487d51a ("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>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 5263c86fd103..73b2387e3f74 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -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; } /** |