[infiniband] Add notion of a queue pair type

src/drivers/net/ipoib.c

@@ -519,7 +519,8 @@ static int ipoib_open ( struct net_device *netdev ) {
 	}
 
 	/* Allocate queue pair */
-	ipoib->qp = ib_create_qp ( ibdev, IPOIB_NUM_SEND_WQES, ipoib->cq,
+	ipoib->qp = ib_create_qp ( ibdev, IB_QPT_UD,
+				   IPOIB_NUM_SEND_WQES, ipoib->cq,
 				   IPOIB_NUM_RECV_WQES, ipoib->cq, 0 );
 	if ( ! ipoib->qp ) {
 		DBGC ( ipoib, "IPoIB %p could not allocate queue pair\n",

src/include/gpxe/ib_gma.h

@@ -18,6 +18,7 @@ struct ib_completion_queue;
 struct ib_queue_pair;
 union ib_mad;
 struct ib_gma;
+enum ib_queue_pair_type;
 
 /** A GMA attribute handler */
 struct ib_gma_handler {
@@ -68,7 +69,7 @@ struct ib_gma {
 extern int ib_gma_request ( struct ib_gma *gma, union ib_mad *mad,
 			    struct ib_address_vector *av, int retry );
 extern int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
-			   unsigned long qkey );
+			   enum ib_queue_pair_type type );
 extern void ib_destroy_gma ( struct ib_gma *gma );
 
 #endif /* _GPXE_IB_GMA_H */

src/include/gpxe/infiniband.h

@@ -83,6 +83,13 @@ struct ib_multicast_gid {
 	struct ib_gid gid;
 };
 
+/** An Infiniband queue pair type */
+enum ib_queue_pair_type {
+	IB_QPT_SMA,
+	IB_QPT_GMA,
+	IB_QPT_UD,
+};
+
 /** An Infiniband Queue Pair */
 struct ib_queue_pair {
 	/** Containing Infiniband device */
@@ -91,6 +98,8 @@ struct ib_queue_pair {
 	struct list_head list;
 	/** Queue Pair Number */
 	unsigned long qpn;
+	/** Queue pair type */
+	enum ib_queue_pair_type type;
 	/** Queue key */
 	unsigned long qkey;
 	/** Send queue */
@@ -395,9 +404,10 @@ extern void ib_destroy_cq ( struct ib_device *ibdev,
 extern void ib_poll_cq ( struct ib_device *ibdev,
 			 struct ib_completion_queue *cq );
 extern struct ib_queue_pair *
-ib_create_qp ( struct ib_device *ibdev, unsigned int num_send_wqes,
-	       struct ib_completion_queue *send_cq, unsigned int num_recv_wqes,
-	       struct ib_completion_queue *recv_cq, unsigned long qkey );
+ib_create_qp ( struct ib_device *ibdev, enum ib_queue_pair_type type,
+	       unsigned int num_send_wqes, struct ib_completion_queue *send_cq,
+	       unsigned int num_recv_wqes, struct ib_completion_queue *recv_cq,
+	       unsigned long qkey );
 extern int ib_modify_qp ( struct ib_device *ibdev, struct ib_queue_pair *qp,
 			  unsigned long mod_list, unsigned long qkey );
 extern void ib_destroy_qp ( struct ib_device *ibdev,

src/net/infiniband.c

@@ -143,6 +143,7 @@ void ib_poll_cq ( struct ib_device *ibdev,
  * Create queue pair
  *
  * @v ibdev		Infiniband device
+ * @v type		Queue pair type
  * @v num_send_wqes	Number of send work queue entries
  * @v send_cq		Send completion queue
  * @v num_recv_wqes	Number of receive work queue entries
@@ -151,6 +152,7 @@ void ib_poll_cq ( struct ib_device *ibdev,
  * @ret qp		Queue pair
  */
 struct ib_queue_pair * ib_create_qp ( struct ib_device *ibdev,
+				      enum ib_queue_pair_type type,
 				      unsigned int num_send_wqes,
 				      struct ib_completion_queue *send_cq,
 				      unsigned int num_recv_wqes,
@@ -171,6 +173,7 @@ struct ib_queue_pair * ib_create_qp ( struct ib_device *ibdev,
 		goto err_alloc_qp;
 	qp->ibdev = ibdev;
 	list_add ( &qp->list, &ibdev->qps );
+	qp->type = type;
 	qp->qkey = qkey;
 	qp->send.qp = qp;
 	qp->send.is_send = 1;
@@ -515,7 +518,7 @@ int ib_open ( struct ib_device *ibdev ) {
 	}
 
 	/* Create general management agent */
-	if ( ( rc = ib_create_gma ( &ibdev->gma, ibdev, IB_QKEY_GMA ) ) != 0 ){
+	if ( ( rc = ib_create_gma ( &ibdev->gma, ibdev, IB_QPT_GMA ) ) != 0 ) {
 		DBGC ( ibdev, "IBDEV %p could not create GMA: %s\n",
 		       ibdev, strerror ( rc ) );
 		goto err_create_gma;

src/net/infiniband/ib_gma.c

@@ -343,11 +343,12 @@ int ib_gma_request ( struct ib_gma *gma, union ib_mad *mad,
  *
  * @v gma		General management agent
  * @v ibdev		Infiniband device
- * @v qkey		Queue key
+ * @v type		Queue pair type
  * @ret rc		Return status code
  */
 int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
-		    unsigned long qkey ) {
+		    enum ib_queue_pair_type type ) {
+	unsigned long qkey;
 	int rc;
 
 	/* Initialise fields */
@@ -366,7 +367,8 @@ int ib_create_gma ( struct ib_gma *gma, struct ib_device *ibdev,
 	}
 
 	/* Create queue pair */
-	gma->qp = ib_create_qp ( ibdev, IB_GMA_NUM_SEND_WQES, gma->cq,
+	qkey = ( ( type == IB_QPT_SMA ) ? IB_QKEY_SMA : IB_QKEY_GMA );
+	gma->qp = ib_create_qp ( ibdev, type, IB_GMA_NUM_SEND_WQES, gma->cq,
 				 IB_GMA_NUM_RECV_WQES, gma->cq, qkey );
 	if ( ! gma->qp ) {
 		DBGC ( gma, "GMA %p could not allocate queue pair\n", gma );

src/net/infiniband/ib_sma.c

@@ -286,7 +286,7 @@ int ib_create_sma ( struct ib_sma *sma, struct ib_device *ibdev ) {
 	int rc;
 
 	/* Initialise GMA */
-	if ( ( rc = ib_create_gma ( &sma->gma, ibdev, 0 ) ) != 0 ) {
+	if ( ( rc = ib_create_gma ( &sma->gma, ibdev, IB_QPT_SMA ) ) != 0 ) {
 		DBGC ( sma, "SMA %p could not create GMA: %s\n",
 		       sma, strerror ( rc ) );
 		goto err_create_gma;