drivers/misc/genwqe/genwqe_driver.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef __GENWQE_DRIVER_H__
   3 #define __GENWQE_DRIVER_H__
   4
   5 /**
   6  * IBM Accelerator Family 'GenWQE'
   7  *
   8  * (C) Copyright IBM Corp. 2013
   9  *
  10  * Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
  11  * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
  12  * Author: Michael Jung <mijung@gmx.net>
  13  * Author: Michael Ruettger <michael@ibmra.de>
  14  */
  15
  16 #include <linux/types.h>
  17 #include <linux/stddef.h>
  18 #include <linux/cdev.h>
  19 #include <linux/list.h>
  20 #include <linux/kthread.h>
  21 #include <linux/scatterlist.h>
  22 #include <linux/iommu.h>
  23 #include <linux/spinlock.h>
  24 #include <linux/mutex.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/printk.h>
  27
  28 #include <asm/byteorder.h>
  29 #include <linux/genwqe/genwqe_card.h>
  30
  31 #define DRV_VERSION             "2.0.25"
  32
  33 /*
  34  * Static minor number assignement, until we decide/implement
  35  * something dynamic.
  36  */
  37 #define GENWQE_MAX_MINOR        128 /* up to 128 possible genwqe devices */
  38
  39 /**
  40  * genwqe_requ_alloc() - Allocate a new DDCB execution request
  41  *
  42  * This data structure contains the user visiable fields of the DDCB
  43  * to be executed.
  44  *
  45  * Return: ptr to genwqe_ddcb_cmd data structure
  46  */
  47 struct genwqe_ddcb_cmd *ddcb_requ_alloc(void);
  48
  49 /**
  50  * ddcb_requ_free() - Free DDCB execution request.
  51  * @req:       ptr to genwqe_ddcb_cmd data structure.
  52  */
  53 void ddcb_requ_free(struct genwqe_ddcb_cmd *req);
  54
  55 u32  genwqe_crc32(u8 *buff, size_t len, u32 init);
  56
  57 static inline void genwqe_hexdump(struct pci_dev *pci_dev,
  58                                   const void *buff, unsigned int size)
  59 {
  60         char prefix[32];
  61
  62         scnprintf(prefix, sizeof(prefix), "%s %s: ",
  63                   GENWQE_DEVNAME, pci_name(pci_dev));
  64
  65         print_hex_dump_debug(prefix, DUMP_PREFIX_OFFSET, 16, 1, buff,
  66                              size, true);
  67 }
  68
  69 #endif  /* __GENWQE_DRIVER_H__ */