diff options
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe.h')
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe.h | 87 |
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 */ |