drivers/misc/genwqe/genwqe_driver.h

   1 #ifndef __GENWQE_DRIVER_H__
   2 #define __GENWQE_DRIVER_H__
   3
   4 /**
   5  * IBM Accelerator Family 'GenWQE'
   6  *
   7  * (C) Copyright IBM Corp. 2013
   8  *
   9  * Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
  10  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  11  * Author: Michael Jung <mijung@de.ibm.com>
  12  * Author: Michael Ruettger <michael@ibmra.de>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License (version 2 only)
  16  * as published by the Free Software Foundation.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21  * GNU General Public License for more details.
  22  */
  23
  24 #include <linux/types.h>
  25 #include <linux/stddef.h>
  26 #include <linux/cdev.h>
  27 #include <linux/list.h>
  28 #include <linux/kthread.h>
  29 #include <linux/scatterlist.h>
  30 #include <linux/iommu.h>
  31 #include <linux/spinlock.h>
  32 #include <linux/mutex.h>
  33 #include <linux/platform_device.h>
  34 #include <linux/printk.h>
  35
  36 #include <asm/byteorder.h>
  37 #include <linux/genwqe/genwqe_card.h>
  38
  39 #define DRV_VERS_STRING         "2.0.0"
  40
  41 /*
  42  * Static minor number assignement, until we decide/implement
  43  * something dynamic.
  44  */
  45 #define GENWQE_MAX_MINOR        128 /* up to 128 possible genwqe devices */
  46
  47 /**
  48  * genwqe_requ_alloc() - Allocate a new DDCB execution request
  49  *
  50  * This data structure contains the user visiable fields of the DDCB
  51  * to be executed.
  52  *
  53  * Return: ptr to genwqe_ddcb_cmd data structure
  54  */
  55 struct genwqe_ddcb_cmd *ddcb_requ_alloc(void);
  56
  57 /**
  58  * ddcb_requ_free() - Free DDCB execution request.
  59  * @req:       ptr to genwqe_ddcb_cmd data structure.
  60  */
  61 void ddcb_requ_free(struct genwqe_ddcb_cmd *req);
  62
  63 u32  genwqe_crc32(u8 *buff, size_t len, u32 init);
  64
  65 static inline void genwqe_hexdump(struct pci_dev *pci_dev,
  66                                   const void *buff, unsigned int size)
  67 {
  68         char prefix[32];
  69
  70         scnprintf(prefix, sizeof(prefix), "%s %s: ",
  71                   GENWQE_DEVNAME, pci_name(pci_dev));
  72
  73         print_hex_dump_debug(prefix, DUMP_PREFIX_OFFSET, 16, 1, buff,
  74                              size, true);
  75 }
  76
  77 #endif  /* __GENWQE_DRIVER_H__ */