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kernel/linux-rt-4.4.41/drivers/misc/genwqe/genwqe_driver.h 2.09 KB
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  #ifndef __GENWQE_DRIVER_H__
  #define __GENWQE_DRIVER_H__
  
  /**
   * IBM Accelerator Family 'GenWQE'
   *
   * (C) Copyright IBM Corp. 2013
   *
   * Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
   * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
   * Author: Michael Jung <mijung@gmx.net>
   * Author: Michael Ruettger <michael@ibmra.de>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License (version 2 only)
   * as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU General Public License for more details.
   */
  
  #include <linux/types.h>
  #include <linux/stddef.h>
  #include <linux/cdev.h>
  #include <linux/list.h>
  #include <linux/kthread.h>
  #include <linux/scatterlist.h>
  #include <linux/iommu.h>
  #include <linux/spinlock.h>
  #include <linux/mutex.h>
  #include <linux/platform_device.h>
  #include <linux/printk.h>
  
  #include <asm/byteorder.h>
  #include <linux/genwqe/genwqe_card.h>
  
  #define DRV_VERSION		"2.0.25"
  
  /*
   * Static minor number assignement, until we decide/implement
   * something dynamic.
   */
  #define GENWQE_MAX_MINOR	128 /* up to 128 possible genwqe devices */
  
  /**
   * genwqe_requ_alloc() - Allocate a new DDCB execution request
   *
   * This data structure contains the user visiable fields of the DDCB
   * to be executed.
   *
   * Return: ptr to genwqe_ddcb_cmd data structure
   */
  struct genwqe_ddcb_cmd *ddcb_requ_alloc(void);
  
  /**
   * ddcb_requ_free() - Free DDCB execution request.
   * @req:       ptr to genwqe_ddcb_cmd data structure.
   */
  void ddcb_requ_free(struct genwqe_ddcb_cmd *req);
  
  u32  genwqe_crc32(u8 *buff, size_t len, u32 init);
  
  static inline void genwqe_hexdump(struct pci_dev *pci_dev,
  				  const void *buff, unsigned int size)
  {
  	char prefix[32];
  
  	scnprintf(prefix, sizeof(prefix), "%s %s: ",
  		  GENWQE_DEVNAME, pci_name(pci_dev));
  
  	print_hex_dump_debug(prefix, DUMP_PREFIX_OFFSET, 16, 1, buff,
  			     size, true);
  }
  
  #endif	/* __GENWQE_DRIVER_H__ */