diff options
Diffstat (limited to 'drivers/infiniband/core/uverbs.h')
| -rw-r--r-- | drivers/infiniband/core/uverbs.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index 88029f3b6853..ea0bc6885517 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -293,4 +293,29 @@ extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_FLOW_ACTION); extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_DM); extern const struct uverbs_object_def UVERBS_OBJECT(UVERBS_OBJECT_COUNTERS); +/* + * ib_uverbs_query_port_resp.port_cap_flags started out as just a copy of the + * PortInfo CapabilityMask, but was extended with unique bits. + */ +static inline u32 make_port_cap_flags(const struct ib_port_attr *attr) +{ + u32 res; + + /* All IBA CapabilityMask bits are passed through here, except bit 26, + * which is overridden with IP_BASED_GIDS. This is due to a historical + * mistake in the implementation of IP_BASED_GIDS. Otherwise all other + * bits match the IBA definition across all kernel versions. + */ + res = attr->port_cap_flags & ~(u32)IB_UVERBS_PCF_IP_BASED_GIDS; + + if (attr->ip_gids) + res |= IB_UVERBS_PCF_IP_BASED_GIDS; + + return res; +} + + +void copy_port_attr_to_resp(struct ib_port_attr *attr, + struct ib_uverbs_query_port_resp *resp, + struct ib_device *ib_dev, u8 port_num); #endif /* UVERBS_H */ |