diff mbox

[for-next,02/24] IB/hfi1: Add field to reference the rcd from the QP priv struct

Message ID 20180702152153.16400.85818.stgit@scvm10.sc.intel.com (mailing list archive)
State Changes Requested
Headers show

Commit Message

Dennis Dalessandro July 2, 2018, 3:22 p.m. UTC 
From: Mike Marciniszyn <mike.marciniszyn@intel.com>

This patch adds a priv field to reference the rcd as well as the routine
that is used to initialize the field when the QP is created and after
the qpn has been assigned.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
---
 drivers/infiniband/hw/hfi1/tid_rdma.c |   40 +++++++++++++++++++++++++++++++++
 drivers/infiniband/hw/hfi1/tid_rdma.h |    3 ++
 drivers/infiniband/hw/hfi1/verbs.c    |    1 +
 drivers/infiniband/hw/hfi1/verbs.h    |    2 ++
 drivers/infiniband/sw/rdmavt/qp.c     |    9 +++++++
 include/rdma/rdma_vt.h                |    7 ++++++
 6 files changed, 61 insertions(+), 1 deletions(-)


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diff mbox

Patch

diff --git a/drivers/infiniband/hw/hfi1/tid_rdma.c b/drivers/infiniband/hw/hfi1/tid_rdma.c
index 7463de3..be2a4d1 100644
--- a/drivers/infiniband/hw/hfi1/tid_rdma.c
+++ b/drivers/infiniband/hw/hfi1/tid_rdma.c
@@ -46,6 +46,7 @@ 
  *
  */
 
+#include "hfi.h"
 #include "verbs.h"
 #include "tid_rdma.h"
 
@@ -68,3 +69,42 @@  void hfi1_rc_rcv_tid_rdma_read_req(struct hfi1_packet *packet)
 void hfi1_rc_rcv_tid_rdma_read_resp(struct hfi1_packet *packet)
 {
 }
+
+/**
+ * qp_to_rcd - determine the receive context used by a qp
+ * @qp - the qp
+ *
+ * This routine returns the receive context associated
+ * with a a qp's qpn.
+ *
+ * Returns the context.
+ */
+static struct hfi1_ctxtdata *qp_to_rcd(struct rvt_dev_info *rdi,
+				       struct rvt_qp *qp)
+{
+	struct hfi1_ibdev *verbs_dev = container_of(rdi,
+						    struct hfi1_ibdev,
+						    rdi);
+	struct hfi1_devdata *dd = container_of(verbs_dev,
+					       struct hfi1_devdata,
+					       verbs_dev);
+	unsigned int ctxt;
+
+	if (qp->ibqp.qp_num == 0)
+		ctxt = 0;
+	else
+		ctxt = ((qp->ibqp.qp_num >> dd->qos_shift) %
+			(dd->n_krcv_queues - 1)) + 1;
+
+	return dd->rcd[ctxt];
+}
+
+int hfi1_qp_priv_init(struct rvt_dev_info *rdi, struct rvt_qp *qp,
+		      struct ib_qp_init_attr *init_attr)
+{
+	struct hfi1_qp_priv *qpriv = qp->priv;
+
+	qpriv->rcd = qp_to_rcd(rdi, qp);
+
+	return 0;
+}
diff --git a/drivers/infiniband/hw/hfi1/tid_rdma.h b/drivers/infiniband/hw/hfi1/tid_rdma.h
index 8333986..3fcef36 100644
--- a/drivers/infiniband/hw/hfi1/tid_rdma.h
+++ b/drivers/infiniband/hw/hfi1/tid_rdma.h
@@ -59,4 +59,7 @@ 
 
 void hfi1_rc_rcv_tid_rdma_read_resp(struct hfi1_packet *packet);
 
+int hfi1_qp_priv_init(struct rvt_dev_info *rdi, struct rvt_qp *qp,
+		      struct ib_qp_init_attr *init_attr);
+
 #endif /* HFI1_TID_RDMA_H */
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 5cef122..bdf5336 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1929,6 +1929,7 @@  int hfi1_register_ib_device(struct hfi1_devdata *dd)
 	dd->verbs_dev.rdi.dparms.max_mad_size = OPA_MGMT_MAD_SIZE;
 
 	dd->verbs_dev.rdi.driver_f.qp_priv_alloc = qp_priv_alloc;
+	dd->verbs_dev.rdi.driver_f.qp_priv_init = hfi1_qp_priv_init;
 	dd->verbs_dev.rdi.driver_f.qp_priv_free = qp_priv_free;
 	dd->verbs_dev.rdi.driver_f.free_all_qps = free_all_qps;
 	dd->verbs_dev.rdi.driver_f.notify_qp_reset = notify_qp_reset;
diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h
index a4d0650..1f08edd 100644
--- a/drivers/infiniband/hw/hfi1/verbs.h
+++ b/drivers/infiniband/hw/hfi1/verbs.h
@@ -71,6 +71,7 @@ 
 struct hfi1_packet;
 
 #include "iowait.h"
+#include "tid_rdma.h"
 
 #define HFI1_MAX_RDMA_ATOMIC     16
 
@@ -156,6 +157,7 @@  struct hfi1_qp_priv {
 	struct hfi1_ahg_info *s_ahg;              /* ahg info for next header */
 	struct sdma_engine *s_sde;                /* current sde */
 	struct send_context *s_sendcontext;       /* current sendcontext */
+	struct hfi1_ctxtdata *rcd;                /* QP's receive context */
 	u8 s_sc;		                  /* SC[0..4] for next packet */
 	struct iowait s_iowait;
 	struct rvt_qp *owner;
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index d29e3c9..e55ecbb 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -1,5 +1,5 @@ 
 /*
- * Copyright(c) 2016, 2017 Intel Corporation.
+ * Copyright(c) 2016 - 2018 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -913,6 +913,13 @@  struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 		qp->ibqp.qp_num = err;
 		qp->port_num = init_attr->port_num;
 		rvt_init_qp(rdi, qp, init_attr->qp_type);
+		if (rdi->driver_f.qp_priv_init) {
+			err = rdi->driver_f.qp_priv_init(rdi, qp, init_attr);
+			if (err) {
+				ret = ERR_PTR(err);
+				goto bail_rq_wq;
+			}
+		}
 		break;
 
 	default:
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index e79229a..6e259f9 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -242,6 +242,13 @@  struct rvt_driver_provided {
 	void * (*qp_priv_alloc)(struct rvt_dev_info *rdi, struct rvt_qp *qp);
 
 	/*
+	 * Init a struture allocated with qp_priv_alloc(). This should be
+	 * called after all qp fields have been initialized in rdmavt.
+	 */
+	int (*qp_priv_init)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
+			    struct ib_qp_init_attr *init_attr);
+
+	/*
 	 * Free the driver's private qp structure.
 	 */
 	void (*qp_priv_free)(struct rvt_dev_info *rdi, struct rvt_qp *qp);