diff options
| author |   Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> | 2017-04-29 14:41:30 -0400 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-05-01 14:32:43 -0400 |
| commit | 64b4646eaf3dab4cc7b3040d10d565a83654446f (patch) | |
| tree | dc04ccefd69c916d547bcf34d7aa8cf477fccea1 /include | |
| parent | IB/core: Define 'ib' and 'roce' rdma_ah_attr types (diff) | |
| download | linux-dev-64b4646eaf3dab4cc7b3040d10d565a83654446f.tar.xz linux-dev-64b4646eaf3dab4cc7b3040d10d565a83654446f.zip | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/ib_verbs.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 803927b31742..f0cb4906478a 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -843,6 +843,7 @@ __attribute_const__ enum ib_rate mult_to_ib_rate(int mult); enum rdma_ah_attr_type { RDMA_AH_ATTR_TYPE_IB, RDMA_AH_ATTR_TYPE_ROCE, + RDMA_AH_ATTR_TYPE_OPA, }; struct ib_ah_attr { @@ -854,6 +855,11 @@ struct roce_ah_attr { u8 dmac[ETH_ALEN]; }; +struct opa_ah_attr { + u32 dlid; + u8 src_path_bits; +}; + struct rdma_ah_attr { struct ib_global_route grh; u8 sl; @@ -864,6 +870,7 @@ struct rdma_ah_attr { union { struct ib_ah_attr ib; struct roce_ah_attr roce; + struct opa_ah_attr opa; }; }; @@ -3490,16 +3497,20 @@ static inline u8 *rdma_ah_retrieve_dmac(struct rdma_ah_attr *attr) return NULL; } -static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u16 dlid) +static inline void rdma_ah_set_dlid(struct rdma_ah_attr *attr, u32 dlid) { if (attr->type == RDMA_AH_ATTR_TYPE_IB) - attr->ib.dlid = dlid; + attr->ib.dlid = (u16)dlid; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + attr->opa.dlid = dlid; } -static inline u16 rdma_ah_get_dlid(const struct rdma_ah_attr *attr) +static inline u32 rdma_ah_get_dlid(const struct rdma_ah_attr *attr) { if (attr->type == RDMA_AH_ATTR_TYPE_IB) return attr->ib.dlid; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + return attr->opa.dlid; return 0; } @@ -3518,12 +3529,16 @@ static inline void rdma_ah_set_path_bits(struct rdma_ah_attr *attr, { if (attr->type == RDMA_AH_ATTR_TYPE_IB) attr->ib.src_path_bits = src_path_bits; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + attr->opa.src_path_bits = src_path_bits; } static inline u8 rdma_ah_get_path_bits(const struct rdma_ah_attr *attr) { if (attr->type == RDMA_AH_ATTR_TYPE_IB) return attr->ib.src_path_bits; + else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) + return attr->opa.src_path_bits; return 0; } @@ -3619,6 +3634,9 @@ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, if ((rdma_protocol_roce(dev, port_num)) || (rdma_protocol_iwarp(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 return RDMA_AH_ATTR_TYPE_IB; } |