LXR linux/drivers/infiniband/hw/ocrdma/ocrdma

   1/* This file is part of the Emulex RoCE Device Driver for
   2 * RoCE (RDMA over Converged Ethernet) adapters.
   3 * Copyright (C) 2012-2015 Emulex. All rights reserved.
   4 * EMULEX and SLI are trademarks of Emulex.
   5 * www.emulex.com
   6 *
   7 * This software is available to you under a choice of one of two licenses.
   8 * You may choose to be licensed under the terms of the GNU General Public
   9 * License (GPL) Version 2, available from the file COPYING in the main
  10 * directory of this source tree, or the BSD license below:
  11 *
  12 * Redistribution and use in source and binary forms, with or without
  13 * modification, are permitted provided that the following conditions
  14 * are met:
  15 *
  16 * - Redistributions of source code must retain the above copyright notice,
  17 *   this list of conditions and the following disclaimer.
  18 *
  19 * - Redistributions in binary form must reproduce the above copyright
  20 *   notice, this list of conditions and the following disclaimer in
  21 *   the documentation and/or other materials provided with the distribution.
  22 *
  23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
  25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34 *
  35 * Contact Information:
  36 * linux-drivers@emulex.com
  37 *
  38 * Emulex
  39 * 3333 Susan Street
  40 * Costa Mesa, CA 92626
  41 */
  42
  43#ifndef __OCRDMA_HW_H__
  44#define __OCRDMA_HW_H__
  45
  46#include "ocrdma_sli.h"
  47
  48static inline void ocrdma_cpu_to_le32(void *dst, u32 len)
  49{
  50#ifdef __BIG_ENDIAN
  51        int i = 0;
  52        u32 *src_ptr = dst;
  53        u32 *dst_ptr = dst;
  54        for (; i < (len / 4); i++)
  55                *(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
  56#endif
  57}
  58
  59static inline void ocrdma_le32_to_cpu(void *dst, u32 len)
  60{
  61#ifdef __BIG_ENDIAN
  62        int i = 0;
  63        u32 *src_ptr = dst;
  64        u32 *dst_ptr = dst;
  65        for (; i < (len / sizeof(u32)); i++)
  66                *(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
  67#endif
  68}
  69
  70static inline void ocrdma_copy_cpu_to_le32(void *dst, void *src, u32 len)
  71{
  72#ifdef __BIG_ENDIAN
  73        int i = 0;
  74        u32 *src_ptr = src;
  75        u32 *dst_ptr = dst;
  76        for (; i < (len / sizeof(u32)); i++)
  77                *(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
  78#else
  79        memcpy(dst, src, len);
  80#endif
  81}
  82
  83static inline void ocrdma_copy_le32_to_cpu(void *dst, void *src, u32 len)
  84{
  85#ifdef __BIG_ENDIAN
  86        int i = 0;
  87        u32 *src_ptr = src;
  88        u32 *dst_ptr = dst;
  89        for (; i < len / sizeof(u32); i++)
  90                *(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
  91#else
  92        memcpy(dst, src, len);
  93#endif
  94}
  95
  96static inline u64 ocrdma_get_db_addr(struct ocrdma_dev *dev, u32 pdid)
  97{
  98        return dev->nic_info.unmapped_db + (pdid * dev->nic_info.db_page_size);
  99}
 100
 101int ocrdma_init_hw(struct ocrdma_dev *);
 102void ocrdma_cleanup_hw(struct ocrdma_dev *);
 103
 104enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps);
 105void ocrdma_ring_cq_db(struct ocrdma_dev *, u16 cq_id, bool armed,
 106                       bool solicited, u16 cqe_popped);
 107
 108/* verbs specific mailbox commands */
 109int ocrdma_mbx_get_link_speed(struct ocrdma_dev *dev, u8 *lnk_speed,
 110                              u8 *lnk_st);
 111int ocrdma_query_config(struct ocrdma_dev *,
 112                        struct ocrdma_mbx_query_config *config);
 113
 114int ocrdma_mbx_alloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
 115int ocrdma_mbx_dealloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
 116
 117int ocrdma_mbx_alloc_lkey(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
 118                          u32 pd_id, int addr_check);
 119int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *, int fmr, u32 lkey);
 120
 121int ocrdma_reg_mr(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
 122                        u32 pd_id, int acc);
 123int ocrdma_mbx_create_cq(struct ocrdma_dev *, struct ocrdma_cq *,
 124                                int entries, int dpp_cq, u16 pd_id);
 125int ocrdma_mbx_destroy_cq(struct ocrdma_dev *, struct ocrdma_cq *);
 126
 127int ocrdma_mbx_create_qp(struct ocrdma_qp *, struct ib_qp_init_attr *attrs,
 128                         u8 enable_dpp_cq, u16 dpp_cq_id, u16 *dpp_offset,
 129                         u16 *dpp_credit_lmt);
 130int ocrdma_mbx_modify_qp(struct ocrdma_dev *, struct ocrdma_qp *,
 131                         struct ib_qp_attr *attrs, int attr_mask);
 132int ocrdma_mbx_query_qp(struct ocrdma_dev *, struct ocrdma_qp *,
 133                        struct ocrdma_qp_params *param);
 134int ocrdma_mbx_destroy_qp(struct ocrdma_dev *, struct ocrdma_qp *);
 135int ocrdma_mbx_create_srq(struct ocrdma_dev *, struct ocrdma_srq *,
 136                          struct ib_srq_init_attr *,
 137                          struct ocrdma_pd *);
 138int ocrdma_mbx_modify_srq(struct ocrdma_srq *, struct ib_srq_attr *);
 139int ocrdma_mbx_query_srq(struct ocrdma_srq *, struct ib_srq_attr *);
 140int ocrdma_mbx_destroy_srq(struct ocrdma_dev *, struct ocrdma_srq *);
 141
 142int ocrdma_alloc_av(struct ocrdma_dev *, struct ocrdma_ah *);
 143int ocrdma_free_av(struct ocrdma_dev *, struct ocrdma_ah *);
 144
 145int ocrdma_qp_state_change(struct ocrdma_qp *, enum ib_qp_state new_state,
 146                            enum ib_qp_state *old_ib_state);
 147bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
 148bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
 149void ocrdma_flush_qp(struct ocrdma_qp *);
 150int ocrdma_get_irq(struct ocrdma_dev *dev, struct ocrdma_eq *eq);
 151
 152int ocrdma_mbx_rdma_stats(struct ocrdma_dev *, bool reset);
 153char *port_speed_string(struct ocrdma_dev *dev);
 154void ocrdma_init_service_level(struct ocrdma_dev *);
 155void ocrdma_alloc_pd_pool(struct ocrdma_dev *dev);
 156void ocrdma_free_pd_range(struct ocrdma_dev *dev);
 157void ocrdma_update_link_state(struct ocrdma_dev *dev, u8 lstate);
 158
 159#endif                          /* __OCRDMA_HW_H__ */
 160