IB/core: Define 'opa' rdma_ah_attr type
OPA ah_attr types allows core components to specify attributes that may be specific to opa devices. For instance, opa type ah_attr provides 32 bit lids enabling larger OPA fabric sizes. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Don Hiatt <don.hiatt@intel.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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@ -843,6 +843,7 @@ __attribute_const__ enum ib_rate mult_to_ib_rate(int mult);
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enum rdma_ah_attr_type {
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RDMA_AH_ATTR_TYPE_IB,
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RDMA_AH_ATTR_TYPE_ROCE,
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RDMA_AH_ATTR_TYPE_OPA,
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};
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struct ib_ah_attr {
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@ -854,6 +855,11 @@ struct roce_ah_attr {
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u8 dmac[ETH_ALEN];
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};
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struct opa_ah_attr {
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u32 dlid;
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u8 src_path_bits;
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};
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struct rdma_ah_attr {
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struct ib_global_route grh;
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u8 sl;
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@ -864,6 +870,7 @@ struct rdma_ah_attr {
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union {
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struct ib_ah_attr ib;
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struct roce_ah_attr roce;
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struct opa_ah_attr opa;
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};
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};
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@ -3490,16 +3497,20 @@ static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr)
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return NULL;
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}
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static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u16 dlid)
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static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u32 dlid)
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{
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if (attr->type == RDMA_AH_ATTR_TYPE_IB)
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attr->ib.dlid = dlid;
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attr->ib.dlid = (u16)dlid;
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else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
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attr->opa.dlid = dlid;
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}
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static inline u16 rdma_ah_get_dlid(const struct rdma_ah_attr *attr)
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static inline u32 rdma_ah_get_dlid(const struct rdma_ah_attr *attr)
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{
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if (attr->type == RDMA_AH_ATTR_TYPE_IB)
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return attr->ib.dlid;
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else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
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return attr->opa.dlid;
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return 0;
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}
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@ -3518,12 +3529,16 @@ static inline void rdma_ah_set_path_bits(struct rdma_ah_attr *attr,
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{
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if (attr->type == RDMA_AH_ATTR_TYPE_IB)
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attr->ib.src_path_bits = src_path_bits;
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else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
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attr->opa.src_path_bits = src_path_bits;
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}
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static inline u8 rdma_ah_get_path_bits(const struct rdma_ah_attr *attr)
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{
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if (attr->type == RDMA_AH_ATTR_TYPE_IB)
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return attr->ib.src_path_bits;
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else if (attr->type == RDMA_AH_ATTR_TYPE_OPA)
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return attr->opa.src_path_bits;
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return 0;
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}
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@ -3619,6 +3634,9 @@ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev,
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if ((rdma_protocol_roce(dev, port_num)) ||
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(rdma_protocol_iwarp(dev, port_num)))
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return RDMA_AH_ATTR_TYPE_ROCE;
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else if ((rdma_protocol_ib(dev, port_num)) &&
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(rdma_cap_opa_ah(dev, port_num)))
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return RDMA_AH_ATTR_TYPE_OPA;
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else
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return RDMA_AH_ATTR_TYPE_IB;
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}
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