[ofw] [PATCH] hca/wv: set max inline data during QP creation

[Sean Hefty]

Pass through the user's specified max inline data value when creating a QP.
Currently, if the user specifies a value, it gets ignored when the QP is
created.  The inline data value supported is then returned to the user,
which may be less than requested.

This fixes a failure running dtest over mthca adapters.  Mlx4 adapters end
up working for userspace apps because the max_inline_data is passed from the
UVP to the kernel via the UMV buffer.  However, for completeness, fixup
kernel calls for QP creation from IBAL for mlx4.

Signed-off-by: Sean Hefty <sean.hefty at intel.com>
---
It looks like all existing calls to create QPs through IBAL zero the
QP creation attributes, so max_inline_data appears to always be initialized.

Index: hw/mlx4/kernel/hca/qp.c
===================================================================
--- hw/mlx4/kernel/hca/qp.c	(revision 2100)
+++ hw/mlx4/kernel/hca/qp.c	(working copy)
@@ -135,7 +135,7 @@
 		qp_init_attr.cap.max_send_sge = p_create_attr->sq_sge;
 		qp_init_attr.cap.max_recv_wr = p_create_attr->rq_depth;
 		qp_init_attr.cap.max_send_wr = p_create_attr->sq_depth;
-		qp_init_attr.cap.max_inline_data = 0;	/* absent in IBAL */
+		qp_init_attr.cap.max_inline_data = p_create_attr->sq_max_inline;
 	}
 	qp_init_attr.sq_sig_type = (p_create_attr->sq_signaled) ?
IB_SIGNAL_ALL_WR : IB_SIGNAL_REQ_WR;
 	qp_init_attr.qp_type = to_qp_type(p_create_attr->qp_type);
Index: hw/mthca/kernel/hca_verbs.c
===================================================================
--- hw/mthca/kernel/hca_verbs.c	(revision 2100)
+++ hw/mthca/kernel/hca_verbs.c	(working copy)
@@ -1050,6 +1050,7 @@
 	qp_init_attr.recv_cq = (struct ib_cq *)p_create_attr->h_rq_cq;
 	qp_init_attr.send_cq = (struct ib_cq *)p_create_attr->h_sq_cq;
 	qp_init_attr.srq = (struct ib_srq *)p_create_attr->h_srq;
+	qp_init_attr.cap.max_inline_data = p_create_attr->sq_max_inline;
 	qp_init_attr.cap.max_recv_sge = p_create_attr->rq_sge;
 	qp_init_attr.cap.max_send_sge = p_create_attr->sq_sge;
 	qp_init_attr.cap.max_recv_wr = p_create_attr->rq_depth;
Index: core/winverbs/kernel/wv_qp.c
===================================================================
--- core/winverbs/kernel/wv_qp.c	(revision 2100)
+++ core/winverbs/kernel/wv_qp.c	(working copy)
@@ -47,6 +47,7 @@
 	pVerbsAttr->h_srq = (pQp->pSrq != NULL) ? pQp->pSrq->hVerbsSrq : NULL;
 
 	pVerbsAttr->qp_type = (ib_qp_type_t) pAttr->QpType;
+	pVerbsAttr->sq_max_inline = pAttr->MaxInlineSend;
 	pVerbsAttr->sq_depth = pAttr->SendDepth;
 	pVerbsAttr->rq_depth = pAttr->ReceiveDepth;
 	pVerbsAttr->sq_sge = pAttr->SendSge;