diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/ib_verbs.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index b5732432bb29..73ed2e4e802f 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2296,6 +2296,8 @@ struct ib_device { */ int (*get_port_immutable)(struct ib_device *, u8, struct ib_port_immutable *); void (*get_dev_fw_str)(struct ib_device *, char *str, size_t str_len); + const struct cpumask *(*get_vector_affinity)(struct ib_device *ibdev, + int comp_vector); }; struct ib_client { @@ -3706,4 +3708,26 @@ static inline enum rdma_ah_attr_type rdma_ah_find_type(struct ib_device *dev, else return RDMA_AH_ATTR_TYPE_IB; } + +/** + * ib_get_vector_affinity - Get the affinity mappings of a given completion + * vector + * @device: the rdma device + * @comp_vector: index of completion vector + * + * Returns NULL on failure, otherwise a corresponding cpu map of the + * completion vector (returns all-cpus map if the device driver doesn't + * implement get_vector_affinity). + */ +static inline const struct cpumask * +ib_get_vector_affinity(struct ib_device *device, int comp_vector) +{ + if (comp_vector < 0 || comp_vector >= device->num_comp_vectors || + !device->get_vector_affinity) + return NULL; + + return device->get_vector_affinity(device, comp_vector); + +} + #endif /* IB_VERBS_H */ |