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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/infiniband/hw/hfi1/verbs_txreq.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/verbs_txreq.h')
-rw-r--r--drivers/infiniband/hw/hfi1/verbs_txreq.h79
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 000000000..2a7e0ae89
--- /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 */