Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/hfi1/verbs_txreq.h b/drivers/infiniband/hw/hfi1/verbs_txreq.h
new file mode 100644
index 0000000000..2a7e0ae892
--- /dev/null
+++ b/drivers/infiniband/hw/hfi1/verbs_txreq.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
+/*
+ * Copyright(c) 2016 - 2018 Intel Corporation.
+ */
+
+#ifndef HFI1_VERBS_TXREQ_H
+#define HFI1_VERBS_TXREQ_H
+
+#include <linux/types.h>
+#include <linux/slab.h>
+
+#include "verbs.h"
+#include "sdma_txreq.h"
+#include "iowait.h"
+
+struct verbs_txreq {
+	struct hfi1_sdma_header	phdr;
+	struct sdma_txreq       txreq;
+	struct rvt_qp           *qp;
+	struct rvt_swqe         *wqe;
+	struct rvt_mregion	*mr;
+	struct rvt_sge_state    *ss;
+	struct sdma_engine     *sde;
+	struct send_context     *psc;
+	u16                     hdr_dwords;
+	u16			s_cur_size;
+};
+
+struct hfi1_ibdev;
+struct verbs_txreq *__get_txreq(struct hfi1_ibdev *dev,
+				struct rvt_qp *qp);
+
+#define VERBS_TXREQ_GFP (GFP_ATOMIC | __GFP_NOWARN)
+static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev,
+					    struct rvt_qp *qp)
+	__must_hold(&qp->slock)
+{
+	struct verbs_txreq *tx;
+	struct hfi1_qp_priv *priv = qp->priv;
+
+	tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP);
+	if (unlikely(!tx)) {
+		/* call slow path to get the lock */
+		tx = __get_txreq(dev, qp);
+		if (!tx)
+			return tx;
+	}
+	tx->qp = qp;
+	tx->mr = NULL;
+	tx->sde = priv->s_sde;
+	tx->psc = priv->s_sendcontext;
+	/* so that we can test if the sdma descriptors are there */
+	tx->txreq.num_desc = 0;
+	/* Set the header type */
+	tx->phdr.hdr.hdr_type = priv->hdr_type;
+	tx->txreq.flags = 0;
+	return tx;
+}
+
+static inline struct verbs_txreq *get_waiting_verbs_txreq(struct iowait_work *w)
+{
+	struct sdma_txreq *stx;
+
+	stx = iowait_get_txhead(w);
+	if (stx)
+		return container_of(stx, struct verbs_txreq, txreq);
+	return NULL;
+}
+
+static inline bool verbs_txreq_queued(struct iowait_work *w)
+{
+	return iowait_packet_queued(w);
+}
+
+void hfi1_put_txreq(struct verbs_txreq *tx);
+int verbs_txreq_init(struct hfi1_ibdev *dev);
+void verbs_txreq_exit(struct hfi1_ibdev *dev);
+
+#endif                         /* HFI1_VERBS_TXREQ_H */