summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/sw/rxe/rxe.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe.h')
-rw-r--r--drivers/infiniband/sw/rxe/rxe.h87
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe.h b/drivers/infiniband/sw/rxe/rxe.h
new file mode 100644
index 000000000..623fd17df
--- /dev/null
+++ b/drivers/infiniband/sw/rxe/rxe.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
+ * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
+ */
+
+#ifndef RXE_H
+#define RXE_H
+
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/crc32.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_pack.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_umem.h>
+#include <rdma/ib_cache.h>
+#include <rdma/ib_addr.h>
+#include <crypto/hash.h>
+
+#include "rxe_net.h"
+#include "rxe_opcode.h"
+#include "rxe_hdr.h"
+#include "rxe_param.h"
+#include "rxe_verbs.h"
+#include "rxe_loc.h"
+
+/*
+ * Version 1 and Version 2 are identical on 64 bit machines, but on 32 bit
+ * machines Version 2 has a different struct layout.
+ */
+#define RXE_UVERBS_ABI_VERSION 2
+
+#define RXE_ROCE_V2_SPORT (0xc000)
+
+extern bool rxe_initialized;
+
+static inline u32 rxe_crc32(struct rxe_dev *rxe,
+ u32 crc, void *next, size_t len)
+{
+ u32 retval;
+ int err;
+
+ SHASH_DESC_ON_STACK(shash, rxe->tfm);
+
+ shash->tfm = rxe->tfm;
+ *(u32 *)shash_desc_ctx(shash) = crc;
+ err = crypto_shash_update(shash, next, len);
+ if (unlikely(err)) {
+ pr_warn_ratelimited("failed crc calculation, err: %d\n", err);
+ return crc32_le(crc, next, len);
+ }
+
+ retval = *(u32 *)shash_desc_ctx(shash);
+ barrier_data(shash_desc_ctx(shash));
+ return retval;
+}
+
+void rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
+
+int rxe_add(struct rxe_dev *rxe, unsigned int mtu, const char *ibdev_name);
+
+void rxe_rcv(struct sk_buff *skb);
+
+/* The caller must do a matching ib_device_put(&dev->ib_dev) */
+static inline struct rxe_dev *rxe_get_dev_from_net(struct net_device *ndev)
+{
+ struct ib_device *ibdev =
+ ib_device_get_by_netdev(ndev, RDMA_DRIVER_RXE);
+
+ if (!ibdev)
+ return NULL;
+ return container_of(ibdev, struct rxe_dev, ib_dev);
+}
+
+void rxe_port_up(struct rxe_dev *rxe);
+void rxe_port_down(struct rxe_dev *rxe);
+void rxe_set_port_state(struct rxe_dev *rxe);
+
+#endif /* RXE_H */