drivers/infiniband/hw/i40iw/i40iw_vf.c

   1 /*******************************************************************************
   2 *
   3 * Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
   4 *
   5 * This software is available to you under a choice of one of two
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   7 * General Public License (GPL) Version 2, available from the file
   8 * COPYING in the main directory of this source tree, or the
   9 * OpenFabrics.org BSD license below:
  10 *
  11 *   Redistribution and use in source and binary forms, with or
  12 *   without modification, are permitted provided that the following
  13 *   conditions are met:
  14 *
  15 *    - Redistributions of source code must retain the above
  16 *       copyright notice, this list of conditions and the following
  17 *       disclaimer.
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  19 *    - Redistributions in binary form must reproduce the above
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  33 *******************************************************************************/
  34
  35 #include "i40iw_osdep.h"
  36 #include "i40iw_register.h"
  37 #include "i40iw_status.h"
  38 #include "i40iw_hmc.h"
  39 #include "i40iw_d.h"
  40 #include "i40iw_type.h"
  41 #include "i40iw_p.h"
  42 #include "i40iw_vf.h"
  43
  44 /**
  45  * i40iw_manage_vf_pble_bp - manage vf pble
  46  * @cqp: cqp for cqp' sq wqe
  47  * @info: pble info
  48  * @scratch: pointer for completion
  49  * @post_sq: to post and ring
  50  */
  51 enum i40iw_status_code i40iw_manage_vf_pble_bp(struct i40iw_sc_cqp *cqp,
  52                                                struct i40iw_manage_vf_pble_info *info,
  53                                                u64 scratch,
  54                                                bool post_sq)
  55 {
  56         u64 *wqe;
  57         u64 temp, header, pd_pl_pba = 0;
  58
  59         wqe = i40iw_sc_cqp_get_next_send_wqe(cqp, scratch);
  60         if (!wqe)
  61                 return I40IW_ERR_RING_FULL;
  62
  63         temp = LS_64(info->pd_entry_cnt, I40IW_CQPSQ_MVPBP_PD_ENTRY_CNT) |
  64             LS_64(info->first_pd_index, I40IW_CQPSQ_MVPBP_FIRST_PD_INX) |
  65             LS_64(info->sd_index, I40IW_CQPSQ_MVPBP_SD_INX);
  66         set_64bit_val(wqe, 16, temp);
  67
  68         header = LS_64((info->inv_pd_ent ? 1 : 0), I40IW_CQPSQ_MVPBP_INV_PD_ENT) |
  69             LS_64(I40IW_CQP_OP_MANAGE_VF_PBLE_BP, I40IW_CQPSQ_OPCODE) |
  70             LS_64(cqp->polarity, I40IW_CQPSQ_WQEVALID);
  71         set_64bit_val(wqe, 24, header);
  72
  73         pd_pl_pba = LS_64(info->pd_pl_pba >> 3, I40IW_CQPSQ_MVPBP_PD_PLPBA);
  74         set_64bit_val(wqe, 32, pd_pl_pba);
  75
  76         i40iw_debug_buf(cqp->dev, I40IW_DEBUG_WQE, "MANAGE VF_PBLE_BP WQE", wqe, I40IW_CQP_WQE_SIZE * 8);
  77
  78         if (post_sq)
  79                 i40iw_sc_cqp_post_sq(cqp);
  80         return 0;
  81 }
  82
  83 const struct i40iw_vf_cqp_ops iw_vf_cqp_ops = {
  84         i40iw_manage_vf_pble_bp
  85 };