From: Mike Marciniszyn <mike.marciniszyn@intel.com>
Date: Fri, 14 Jun 2019 12:32:38 -0400
Subject: IB/hfi1: Create inline to get extended headers
Patch-mainline: v5.2-rc6
Git-commit: 9755f72496664eec70bc804104118b5797b6bf63
References: bsc#1114685 FATE#325854

This paves the way for another patch that reacts to a
flush sdma completion for RC.

Fixes: 81cd3891f021 ("IB/hfi1: Add support for 16B Management Packets")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/hfi1/hfi.h |   31 +++++++++++++++++++++++++++++++
 drivers/infiniband/hw/hfi1/rc.c  |   22 +---------------------
 2 files changed, 32 insertions(+), 21 deletions(-)

--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -519,6 +519,37 @@ static inline void hfi1_16B_set_qpn(stru
 	mgmt->src_qpn = cpu_to_be32(src_qp & OPA_16B_MGMT_QPN_MASK);
 }
 
+/**
+ * hfi1_get_rc_ohdr - get extended header
+ * @opah - the opaheader
+ */
+static inline struct ib_other_headers *
+hfi1_get_rc_ohdr(struct hfi1_opa_header *opah)
+{
+	struct ib_other_headers *ohdr;
+	struct ib_header *hdr = NULL;
+	struct hfi1_16b_header *hdr_16b = NULL;
+
+	/* Find out where the BTH is */
+	if (opah->hdr_type == HFI1_PKT_TYPE_9B) {
+		hdr = &opah->ibh;
+		if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
+			ohdr = &hdr->u.oth;
+		else
+			ohdr = &hdr->u.l.oth;
+	} else {
+		u8 l4;
+
+		hdr_16b = &opah->opah;
+		l4  = hfi1_16B_get_l4(hdr_16b);
+		if (l4 == OPA_16B_L4_IB_LOCAL)
+			ohdr = &hdr_16b->u.oth;
+		else
+			ohdr = &hdr_16b->u.l.oth;
+	}
+	return ohdr;
+}
+
 struct rvt_sge_state;
 
 /*
--- a/drivers/infiniband/hw/hfi1/rc.c
+++ b/drivers/infiniband/hw/hfi1/rc.c
@@ -1100,10 +1100,7 @@ static void reset_sending_psn(struct rvt
 void hfi1_rc_send_complete(struct rvt_qp *qp, struct hfi1_opa_header *opah)
 {
 	struct ib_other_headers *ohdr;
-	struct hfi1_qp_priv *priv = qp->priv;
 	struct rvt_swqe *wqe;
-	struct ib_header *hdr = NULL;
-	struct hfi1_16b_header *hdr_16b = NULL;
 	u32 opcode;
 	u32 psn;
 
@@ -1111,24 +1108,7 @@ void hfi1_rc_send_complete(struct rvt_qp
 	if (!(ib_rvt_state_ops[qp->state] & RVT_SEND_OR_FLUSH_OR_RECV_OK))
 		return;
 
-	/* Find out where the BTH is */
-	if (priv->hdr_type == HFI1_PKT_TYPE_9B) {
-		hdr = &opah->ibh;
-		if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
-			ohdr = &hdr->u.oth;
-		else
-			ohdr = &hdr->u.l.oth;
-	} else {
-		u8 l4;
-
-		hdr_16b = &opah->opah;
-		l4  = hfi1_16B_get_l4(hdr_16b);
-		if (l4 == OPA_16B_L4_IB_LOCAL)
-			ohdr = &hdr_16b->u.oth;
-		else
-			ohdr = &hdr_16b->u.l.oth;
-	}
-
+	ohdr = hfi1_get_rc_ohdr(opah);
 	opcode = ib_bth_get_opcode(ohdr);
 	if (opcode >= OP(RDMA_READ_RESPONSE_FIRST) &&
 	    opcode <= OP(ATOMIC_ACKNOWLEDGE)) {