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post_recv() now works, and we can pass data on the IPoIB queue pair

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using entirely our own code.
This commit is contained in:
Michael Brown
2007-09-15 23:33:25 +01:00
parent 838b972cd3
commit 37fc40bc8c
5 changed files with 234 additions and 74 deletions
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36
src/include/gpxe/infiniband.h
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@@ -64,9 +64,19 @@ struct ibhdr {
struct ib_device;
struct ib_queue_pair;
struct ib_completion_queue;
/** An Infiniband Work Queue */
struct ib_work_queue {
/** Containing queue pair */
struct ib_queue_pair *qp;
/** "Is a send queue" flag */
int is_send;
/** Associated completion queue */
struct ib_completion_queue *cq;
/** List of work queues on this completion queue */
struct list_head list;
/** Number of work queue entries */
unsigned int num_wqes;
/** Next work queue entry index
@@ -85,8 +95,6 @@ struct ib_work_queue {
/** An Infiniband Queue Pair */
struct ib_queue_pair {
/** List of queue pairs sharing a completion queue */
struct list_head list;
/** Queue Pair Number */
unsigned long qpn;
/** Send queue */
@@ -113,8 +121,8 @@ struct ib_completion_queue {
* array index.
*/
unsigned long next_idx;
/** List of associated queue pairs */
struct list_head queue_pairs;
/** List of work queues completing to this queue */
struct list_head work_queues;
/** Device private data */
void *dev_priv;
};
@@ -183,6 +191,22 @@ struct ib_device_operations {
struct ib_queue_pair *qp,
struct ib_address_vector *av,
struct io_buffer *iobuf );
/**
* Post receive work queue entry
*
* @v ibdev Infiniband device
* @v qp Queue pair
* @v iobuf I/O buffer
* @ret rc Return status code
*
* If this method returns success, the I/O buffer remains
* owned by the queue pair. If this method returns failure,
* the I/O buffer is immediately released; the failure is
* interpreted as "failure to enqueue buffer".
*/
int ( * post_recv ) ( struct ib_device *ibdev,
struct ib_queue_pair *qp,
struct io_buffer *iobuf );
/** Poll completion queue
*
* @v ibdev Infiniband device
@@ -205,8 +229,8 @@ struct ib_device {
};
extern struct ib_queue_pair * ib_find_qp ( struct list_head *list,
unsigned long qpn );
extern struct ib_work_queue * ib_find_wq ( struct ib_completion_queue *cq,
unsigned long qpn, int is_send );