IB/core: Add rdma_cap_opa_ah to expose opa address handles
rdma_cap_opa_ah(..) enables core components to check if the corresponding port supports OPA extended addressing. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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@ -501,6 +501,7 @@ static inline struct rdma_hw_stats *rdma_alloc_hw_stats_struct(
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/* Address format 0x000FF000 */
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#define RDMA_CORE_CAP_AF_IB 0x00001000
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#define RDMA_CORE_CAP_ETH_AH 0x00002000
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#define RDMA_CORE_CAP_OPA_AH 0x00004000
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/* Protocol 0xFFF00000 */
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#define RDMA_CORE_CAP_PROT_IB 0x00100000
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@ -2604,6 +2605,21 @@ static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num)
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return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_ETH_AH;
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}
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/**
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* rdma_cap_opa_ah - Check if the port of device supports
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* OPA Address handles
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* @device: Device to check
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* @port_num: Port number to check
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*
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* Return: true if we are running on an OPA device which supports
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* the extended OPA addressing.
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*/
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static inline bool rdma_cap_opa_ah(struct ib_device *device, u8 port_num)
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{
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return (device->port_immutable[port_num].core_cap_flags &
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RDMA_CORE_CAP_OPA_AH) == RDMA_CORE_CAP_OPA_AH;
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}
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/**
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* rdma_max_mad_size - Return the max MAD size required by this RDMA Port.
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*
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