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kernel/linux-rt-4.4.41/drivers/infiniband/hw/usnic/usnic_vnic.h 4.14 KB
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  /*
   * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
   *
   * This software is available to you under a choice of one of two
   * licenses.  You may choose to be licensed under the terms of the GNU
   * General Public License (GPL) Version 2, available from the file
   * COPYING in the main directory of this source tree, or the
   * BSD license below:
   *
   *     Redistribution and use in source and binary forms, with or
   *     without modification, are permitted provided that the following
   *     conditions are met:
   *
   *      - Redistributions of source code must retain the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer.
   *
   *      - Redistributions in binary form must reproduce the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer in the documentation and/or other materials
   *        provided with the distribution.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   *
   */
  
  #ifndef USNIC_VNIC_H_
  #define USNIC_VNIC_H_
  
  #include <linux/pci.h>
  
  #include "vnic_dev.h"
  
  /*                      =USNIC_VNIC_RES_TYPE= =VNIC_RES=   =DESC= */
  #define USNIC_VNIC_RES_TYPES \
  	DEFINE_USNIC_VNIC_RES_AT(EOL, RES_TYPE_EOL, "EOL", 0) \
  	DEFINE_USNIC_VNIC_RES(WQ, RES_TYPE_WQ, "WQ") \
  	DEFINE_USNIC_VNIC_RES(RQ, RES_TYPE_RQ, "RQ") \
  	DEFINE_USNIC_VNIC_RES(CQ, RES_TYPE_CQ, "CQ") \
  	DEFINE_USNIC_VNIC_RES(INTR, RES_TYPE_INTR_CTRL, "INT") \
  	DEFINE_USNIC_VNIC_RES(MAX, RES_TYPE_MAX, "MAX")\
  
  #define DEFINE_USNIC_VNIC_RES_AT(usnic_vnic_res_t, vnic_res_type, desc, val) \
  	USNIC_VNIC_RES_TYPE_##usnic_vnic_res_t = val,
  #define DEFINE_USNIC_VNIC_RES(usnic_vnic_res_t, vnic_res_type, desc) \
  	USNIC_VNIC_RES_TYPE_##usnic_vnic_res_t,
  enum usnic_vnic_res_type {
  	USNIC_VNIC_RES_TYPES
  };
  #undef DEFINE_USNIC_VNIC_RES
  #undef DEFINE_USNIC_VNIC_RES_AT
  
  struct usnic_vnic_res {
  	enum usnic_vnic_res_type	type;
  	unsigned int			vnic_idx;
  	struct usnic_vnic		*vnic;
  	void __iomem			*ctrl;
  	void				*owner;
  };
  
  struct usnic_vnic_res_chunk {
  	enum usnic_vnic_res_type	type;
  	int				cnt;
  	int				free_cnt;
  	struct usnic_vnic_res		**res;
  	struct usnic_vnic		*vnic;
  };
  
  struct usnic_vnic_res_desc {
  	enum usnic_vnic_res_type	type;
  	uint16_t			cnt;
  };
  
  struct usnic_vnic_res_spec {
  	struct usnic_vnic_res_desc resources[USNIC_VNIC_RES_TYPE_MAX];
  };
  
  const char *usnic_vnic_res_type_to_str(enum usnic_vnic_res_type res_type);
  const char *usnic_vnic_pci_name(struct usnic_vnic *vnic);
  int usnic_vnic_dump(struct usnic_vnic *vnic, char *buf, int buf_sz,
  			void *hdr_obj,
  			int (*printtitle)(void *, char*, int),
  			int (*printcols)(char *, int),
  			int (*printrow)(void *, char *, int));
  void usnic_vnic_res_spec_update(struct usnic_vnic_res_spec *spec,
  				enum usnic_vnic_res_type trgt_type,
  				u16 cnt);
  int usnic_vnic_res_spec_satisfied(const struct usnic_vnic_res_spec *min_spec,
  					struct usnic_vnic_res_spec *res_spec);
  int usnic_vnic_spec_dump(char *buf, int buf_sz,
  				struct usnic_vnic_res_spec *res_spec);
  int usnic_vnic_check_room(struct usnic_vnic *vnic,
  				struct usnic_vnic_res_spec *res_spec);
  int usnic_vnic_res_cnt(struct usnic_vnic *vnic,
  				enum usnic_vnic_res_type type);
  int usnic_vnic_res_free_cnt(struct usnic_vnic *vnic,
  				enum usnic_vnic_res_type type);
  struct usnic_vnic_res_chunk *
  usnic_vnic_get_resources(struct usnic_vnic *vnic,
  				enum usnic_vnic_res_type type,
  				int cnt,
  				void *owner);
  void usnic_vnic_put_resources(struct usnic_vnic_res_chunk *chunk);
  struct pci_dev *usnic_vnic_get_pdev(struct usnic_vnic *vnic);
  struct vnic_dev_bar *usnic_vnic_get_bar(struct usnic_vnic *vnic,
  				int bar_num);
  struct usnic_vnic *usnic_vnic_alloc(struct pci_dev *pdev);
  void usnic_vnic_free(struct usnic_vnic *vnic);
  u16 usnic_vnic_get_index(struct usnic_vnic *vnic);
  
  #endif /*!USNIC_VNIC_H_*/