diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/gpxe/infiniband.h | 56 |
1 files changed, 51 insertions, 5 deletions
diff --git a/src/include/gpxe/infiniband.h b/src/include/gpxe/infiniband.h index 9337af353..c08191586 100644 --- a/src/include/gpxe/infiniband.h +++ b/src/include/gpxe/infiniband.h @@ -63,6 +63,7 @@ struct ibhdr { +struct ib_device; /** An Infiniband Work Queue */ struct ib_work_queue { @@ -71,9 +72,11 @@ struct ib_work_queue { /** Next work queue entry index * * This is the index of the next entry to be filled (i.e. the - * first empty entry). + * first empty entry). This value is not bounded by num_wqes; + * users must logical-AND with (num_wqes-1) to generate an + * array index. */ - unsigned int next_idx; + unsigned long next_idx; /** I/O buffers assigned to work queue */ struct io_buffer **iobufs; /** Driver private data */ @@ -92,6 +95,38 @@ struct ib_queue_pair { void *priv; }; +/** An Infiniband Completion Queue */ +struct ib_completion_queue { + /** Number of completion queue entries */ + unsigned int num_cqes; + /** Next completion queue entry index + * + * This is the index of the next entry to be filled (i.e. the + * first empty entry). This value is not bounded by num_wqes; + * users must logical-AND with (num_wqes-1) to generate an + * array index. + */ + unsigned long next_idx; + /** Driver private data */ + void *priv; +}; + +/** An Infiniband completion */ +struct ib_completion { + /** Length */ + size_t len; +}; + +/** An Infiniband completion handler + * + * @v ibdev Infiniband device + * @v completion Completion + * @v iobuf I/O buffer + */ +typedef void ( * ib_completer_t ) ( struct ib_device *ibdev, + struct ib_completion *completion, + struct io_buffer *iobuf ); + /** An Infiniband Address Vector */ struct ib_address_vector { /** Destination Queue Pair */ @@ -110,15 +145,13 @@ struct ib_address_vector { struct ib_gid gid; }; -struct ib_device; - /** * Infiniband device operations * * These represent a subset of the Infiniband Verbs. */ struct ib_device_operations { - /** Post Send work queue entry + /** Post send work queue entry * * @v ibdev Infiniband device * @v iobuf I/O buffer @@ -135,6 +168,19 @@ struct ib_device_operations { struct io_buffer *iobuf, struct ib_address_vector *av, struct ib_queue_pair *qp ); + /** Poll completion queue + * + * @v ibdev Infiniband device + * @v cq Completion queue + * @v complete_send Send completion handler + * @v complete_recv Receive completion handler + * + * The completion handler takes ownership of the I/O buffer. + */ + void ( * poll_cq ) ( struct ib_device *ibdev, + struct ib_completion_queue *cq, + ib_completer_t complete_send, + ib_completer_t complete_recv ); }; /** An Infiniband device */ |