drivers/infiniband/hw/usnic/usnic_vnic.h

   1 /*
   2  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  *
  32  */
  33
  34 #ifndef USNIC_VNIC_H_
  35 #define USNIC_VNIC_H_
  36
  37 #include <linux/pci.h>
  38
  39 #include "vnic_dev.h"
  40
  41 /*                      =USNIC_VNIC_RES_TYPE= =VNIC_RES=   =DESC= */
  42 #define USNIC_VNIC_RES_TYPES \
  43         DEFINE_USNIC_VNIC_RES_AT(EOL, RES_TYPE_EOL, "EOL", 0) \
  44         DEFINE_USNIC_VNIC_RES(WQ, RES_TYPE_WQ, "WQ") \
  45         DEFINE_USNIC_VNIC_RES(RQ, RES_TYPE_RQ, "RQ") \
  46         DEFINE_USNIC_VNIC_RES(CQ, RES_TYPE_CQ, "CQ") \
  47         DEFINE_USNIC_VNIC_RES(INTR, RES_TYPE_INTR_CTRL, "INT") \
  48         DEFINE_USNIC_VNIC_RES(MAX, RES_TYPE_MAX, "MAX")\
  49
  50 #define DEFINE_USNIC_VNIC_RES_AT(usnic_vnic_res_t, vnic_res_type, desc, val) \
  51         USNIC_VNIC_RES_TYPE_##usnic_vnic_res_t = val,
  52 #define DEFINE_USNIC_VNIC_RES(usnic_vnic_res_t, vnic_res_type, desc) \
  53         USNIC_VNIC_RES_TYPE_##usnic_vnic_res_t,
  54 enum usnic_vnic_res_type {
  55         USNIC_VNIC_RES_TYPES
  56 };
  57 #undef DEFINE_USNIC_VNIC_RES
  58 #undef DEFINE_USNIC_VNIC_RES_AT
  59
  60 struct usnic_vnic_res {
  61         enum usnic_vnic_res_type        type;
  62         unsigned int                    vnic_idx;
  63         struct usnic_vnic               *vnic;
  64         void __iomem                    *ctrl;
  65         void                            *owner;
  66 };
  67
  68 struct usnic_vnic_res_chunk {
  69         enum usnic_vnic_res_type        type;
  70         int                             cnt;
  71         int                             free_cnt;
  72         struct usnic_vnic_res           **res;
  73         struct usnic_vnic               *vnic;
  74 };
  75
  76 struct usnic_vnic_res_desc {
  77         enum usnic_vnic_res_type        type;
  78         uint16_t                        cnt;
  79 };
  80
  81 struct usnic_vnic_res_spec {
  82         struct usnic_vnic_res_desc resources[USNIC_VNIC_RES_TYPE_MAX];
  83 };
  84
  85 const char *usnic_vnic_res_type_to_str(enum usnic_vnic_res_type res_type);
  86 const char *usnic_vnic_pci_name(struct usnic_vnic *vnic);
  87 int usnic_vnic_dump(struct usnic_vnic *vnic, char *buf, int buf_sz,
  88                         void *hdr_obj,
  89                         int (*printtitle)(void *, char*, int),
  90                         int (*printcols)(char *, int),
  91                         int (*printrow)(void *, char *, int));
  92 void usnic_vnic_res_spec_update(struct usnic_vnic_res_spec *spec,
  93                                 enum usnic_vnic_res_type trgt_type,
  94                                 u16 cnt);
  95 int usnic_vnic_res_spec_satisfied(const struct usnic_vnic_res_spec *min_spec,
  96                                         struct usnic_vnic_res_spec *res_spec);
  97 int usnic_vnic_spec_dump(char *buf, int buf_sz,
  98                                 struct usnic_vnic_res_spec *res_spec);
  99 int usnic_vnic_check_room(struct usnic_vnic *vnic,
 100                                 struct usnic_vnic_res_spec *res_spec);
 101 int usnic_vnic_res_cnt(struct usnic_vnic *vnic,
 102                                 enum usnic_vnic_res_type type);
 103 int usnic_vnic_res_free_cnt(struct usnic_vnic *vnic,
 104                                 enum usnic_vnic_res_type type);
 105 struct usnic_vnic_res_chunk *
 106 usnic_vnic_get_resources(struct usnic_vnic *vnic,
 107                                 enum usnic_vnic_res_type type,
 108                                 int cnt,
 109                                 void *owner);
 110 void usnic_vnic_put_resources(struct usnic_vnic_res_chunk *chunk);
 111 struct pci_dev *usnic_vnic_get_pdev(struct usnic_vnic *vnic);
 112 struct vnic_dev_bar *usnic_vnic_get_bar(struct usnic_vnic *vnic,
 113                                 int bar_num);
 114 struct usnic_vnic *usnic_vnic_alloc(struct pci_dev *pdev);
 115 void usnic_vnic_free(struct usnic_vnic *vnic);
 116 u16 usnic_vnic_get_index(struct usnic_vnic *vnic);
 117
 118 #endif /*!USNIC_VNIC_H_*/