114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
|
||
|
|
* Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* This software is available to you under a choice of one of two
|
||
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
||
|
|
* General Public License (GPL) Version 2, available from the file
|
||
|
|
* COPYING in the main directory of this source tree, or the
|
||
|
|
* OpenIB.org BSD license below:
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or
|
||
|
|
* without modification, are permitted provided that the following
|
||
|
|
* conditions are met:
|
||
|
|
*
|
||
|
|
* - Redistributions of source code must retain the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer.
|
||
|
|
*
|
||
|
|
* - Redistributions in binary form must reproduce the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer in the documentation and/or other materials
|
||
|
|
* provided with the distribution.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
* SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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 IB_PHYS_STATE_LINK_UP (5)
|
||
|
|
#define IB_PHYS_STATE_LINK_DOWN (3)
|
||
|
|
|
||
|
|
#define RXE_ROCE_V2_SPORT (0xc000)
|
||
|
|
|
||
|
|
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;
|
||
|
|
shash->flags = 0;
|
||
|
|
*(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);
|
||
|
|
void rxe_remove(struct rxe_dev *rxe);
|
||
|
|
void rxe_remove_all(void);
|
||
|
|
|
||
|
|
void rxe_rcv(struct sk_buff *skb);
|
||
|
|
|
||
|
|
static inline void rxe_dev_put(struct rxe_dev *rxe)
|
||
|
|
{
|
||
|
|
kref_put(&rxe->ref_cnt, rxe_release);
|
||
|
|
}
|
||
|
|
struct rxe_dev *net_to_rxe(struct net_device *ndev);
|
||
|
|
struct rxe_dev *get_rxe_by_name(const char *name);
|
||
|
|
|
||
|
|
void rxe_port_up(struct rxe_dev *rxe);
|
||
|
|
void rxe_port_down(struct rxe_dev *rxe);
|
||
|
|
|
||
|
|
#endif /* RXE_H */
|