drivers/infiniband/hw/usnic/usnic_vnic.h

   1 /*
   2  * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
   3  *
   4  * This program is free software; you may redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   9  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  10  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  11  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  12  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  13  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  14  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  15  * SOFTWARE.
  16  *
  17  */
  18
  19 #ifndef USNIC_VNIC_H_
  20 #define USNIC_VNIC_H_
  21
  22 #include <linux/pci.h>
  23
  24 #include "vnic_dev.h"
  25
  26 /*                      =USNIC_VNIC_RES_TYPE= =VNIC_RES=   =DESC= */
  27 #define USNIC_VNIC_RES_TYPES \
  28         DEFINE_USNIC_VNIC_RES_AT(EOL, RES_TYPE_EOL, "EOL", 0) \
  29         DEFINE_USNIC_VNIC_RES(WQ, RES_TYPE_WQ, "WQ") \
  30         DEFINE_USNIC_VNIC_RES(RQ, RES_TYPE_RQ, "RQ") \
  31         DEFINE_USNIC_VNIC_RES(CQ, RES_TYPE_CQ, "CQ") \
  32         DEFINE_USNIC_VNIC_RES(INTR, RES_TYPE_INTR_CTRL, "INT") \
  33         DEFINE_USNIC_VNIC_RES(MAX, RES_TYPE_MAX, "MAX")\
  34
  35 #define DEFINE_USNIC_VNIC_RES_AT(usnic_vnic_res_t, vnic_res_type, desc, val) \
  36         USNIC_VNIC_RES_TYPE_##usnic_vnic_res_t = val,
  37 #define DEFINE_USNIC_VNIC_RES(usnic_vnic_res_t, vnic_res_type, desc) \
  38         USNIC_VNIC_RES_TYPE_##usnic_vnic_res_t,
  39 enum usnic_vnic_res_type {
  40         USNIC_VNIC_RES_TYPES
  41 };
  42 #undef DEFINE_USNIC_VNIC_RES
  43 #undef DEFINE_USNIC_VNIC_RES_AT
  44
  45 struct usnic_vnic_res {
  46         enum usnic_vnic_res_type        type;
  47         unsigned int                    vnic_idx;
  48         struct usnic_vnic               *vnic;
  49         void __iomem                    *ctrl;
  50         void                            *owner;
  51 };
  52
  53 struct usnic_vnic_res_chunk {
  54         enum usnic_vnic_res_type        type;
  55         int                             cnt;
  56         int                             free_cnt;
  57         struct usnic_vnic_res           **res;
  58         struct usnic_vnic               *vnic;
  59 };
  60
  61 struct usnic_vnic_res_desc {
  62         enum usnic_vnic_res_type        type;
  63         uint16_t                        cnt;
  64 };
  65
  66 struct usnic_vnic_res_spec {
  67         struct usnic_vnic_res_desc resources[USNIC_VNIC_RES_TYPE_MAX];
  68 };
  69
  70 const char *usnic_vnic_res_type_to_str(enum usnic_vnic_res_type res_type);
  71 const char *usnic_vnic_pci_name(struct usnic_vnic *vnic);
  72 int usnic_vnic_dump(struct usnic_vnic *vnic, char *buf, int buf_sz,
  73                         void *hdr_obj,
  74                         int (*printtitle)(void *, char*, int),
  75                         int (*printcols)(char *, int),
  76                         int (*printrow)(void *, char *, int));
  77 void usnic_vnic_res_spec_update(struct usnic_vnic_res_spec *spec,
  78                                 enum usnic_vnic_res_type trgt_type,
  79                                 u16 cnt);
  80 int usnic_vnic_res_spec_satisfied(const struct usnic_vnic_res_spec *min_spec,
  81                                         struct usnic_vnic_res_spec *res_spec);
  82 int usnic_vnic_spec_dump(char *buf, int buf_sz,
  83                                 struct usnic_vnic_res_spec *res_spec);
  84 int usnic_vnic_check_room(struct usnic_vnic *vnic,
  85                                 struct usnic_vnic_res_spec *res_spec);
  86 int usnic_vnic_res_cnt(struct usnic_vnic *vnic,
  87                                 enum usnic_vnic_res_type type);
  88 int usnic_vnic_res_free_cnt(struct usnic_vnic *vnic,
  89                                 enum usnic_vnic_res_type type);
  90 struct usnic_vnic_res_chunk *
  91 usnic_vnic_get_resources(struct usnic_vnic *vnic,
  92                                 enum usnic_vnic_res_type type,
  93                                 int cnt,
  94                                 void *owner);
  95 void usnic_vnic_put_resources(struct usnic_vnic_res_chunk *chunk);
  96 struct pci_dev *usnic_vnic_get_pdev(struct usnic_vnic *vnic);
  97 struct vnic_dev_bar *usnic_vnic_get_bar(struct usnic_vnic *vnic,
  98                                 int bar_num);
  99 struct usnic_vnic *usnic_vnic_alloc(struct pci_dev *pdev);
 100 void usnic_vnic_free(struct usnic_vnic *vnic);
 101 u16 usnic_vnic_get_index(struct usnic_vnic *vnic);
 102
 103 #endif /*!USNIC_VNIC_H_*/