2020-08-27 14:54:40 +00:00
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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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2016-06-16 13:45:23 +00:00
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/*
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* Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
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* Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
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*/
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#ifndef RXE_H
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#define RXE_H
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2016-09-28 20:26:26 +00:00
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#ifdef pr_fmt
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#undef pr_fmt
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#endif
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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2016-06-16 13:45:23 +00:00
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#include <linux/module.h>
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#include <linux/skbuff.h>
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#include <linux/crc32.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/ib_pack.h>
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#include <rdma/ib_smi.h>
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#include <rdma/ib_umem.h>
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#include <rdma/ib_cache.h>
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#include <rdma/ib_addr.h>
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2017-04-20 17:55:55 +00:00
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#include <crypto/hash.h>
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2016-06-16 13:45:23 +00:00
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#include "rxe_net.h"
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#include "rxe_opcode.h"
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#include "rxe_hdr.h"
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#include "rxe_param.h"
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#include "rxe_verbs.h"
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2018-01-01 11:07:11 +00:00
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#include "rxe_loc.h"
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2016-06-16 13:45:23 +00:00
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2018-03-20 20:19:50 +00:00
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/*
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* Version 1 and Version 2 are identical on 64 bit machines, but on 32 bit
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* machines Version 2 has a different struct layout.
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*/
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#define RXE_UVERBS_ABI_VERSION 2
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2016-06-16 13:45:23 +00:00
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#define RXE_ROCE_V2_SPORT (0xc000)
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2017-04-20 17:55:55 +00:00
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static inline u32 rxe_crc32(struct rxe_dev *rxe,
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u32 crc, void *next, size_t len)
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{
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2017-06-02 15:28:54 +00:00
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u32 retval;
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2017-04-20 17:55:55 +00:00
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int err;
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SHASH_DESC_ON_STACK(shash, rxe->tfm);
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shash->tfm = rxe->tfm;
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*(u32 *)shash_desc_ctx(shash) = crc;
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err = crypto_shash_update(shash, next, len);
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if (unlikely(err)) {
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pr_warn_ratelimited("failed crc calculation, err: %d\n", err);
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return crc32_le(crc, next, len);
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}
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2017-06-02 15:28:54 +00:00
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retval = *(u32 *)shash_desc_ctx(shash);
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barrier_data(shash_desc_ctx(shash));
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return retval;
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2017-04-20 17:55:55 +00:00
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}
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2018-04-20 14:30:54 +00:00
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void rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
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2016-06-16 13:45:23 +00:00
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2019-02-15 19:03:57 +00:00
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int rxe_add(struct rxe_dev *rxe, unsigned int mtu, const char *ibdev_name);
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2016-06-16 13:45:23 +00:00
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2018-04-20 14:05:03 +00:00
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void rxe_rcv(struct sk_buff *skb);
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2016-06-16 13:45:23 +00:00
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2019-02-13 04:12:52 +00:00
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/* The caller must do a matching ib_device_put(&dev->ib_dev) */
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static inline struct rxe_dev *rxe_get_dev_from_net(struct net_device *ndev)
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{
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struct ib_device *ibdev =
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ib_device_get_by_netdev(ndev, RDMA_DRIVER_RXE);
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if (!ibdev)
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return NULL;
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return container_of(ibdev, struct rxe_dev, ib_dev);
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}
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2016-06-16 13:45:23 +00:00
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void rxe_port_up(struct rxe_dev *rxe);
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void rxe_port_down(struct rxe_dev *rxe);
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2018-12-14 16:05:49 +00:00
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void rxe_set_port_state(struct rxe_dev *rxe);
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2016-06-16 13:45:23 +00:00
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#endif /* RXE_H */
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