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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>
This commit is contained in:
Dasaratharaman Chandramouli 2017-04-29 14:41:30 -04:00 committed by Doug Ledford
parent 44c58487d5
commit 64b4646eaf
1 changed files with 21 additions and 3 deletions
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24
include/rdma/ib_verbs.h
View File

@ -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;
}