/drivers/scsi/aacraid/nark.c

http://github.com/mirrors/linux · C · 71 lines · 35 code · 7 blank · 29 comment · 5 complexity · c4d18267e33d9015470145a975c845b0 MD5 · raw file

  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Adaptec AAC series RAID controller driver
  4. *
  5. * based on the old aacraid driver that is..
  6. * Adaptec aacraid device driver for Linux.
  7. *
  8. * Copyright (c) 2000-2010 Adaptec, Inc.
  9. * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
  10. * 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
  11. *
  12. * Module Name:
  13. * nark.c
  14. *
  15. * Abstract: Hardware Device Interface for NEMER/ARK
  16. */
  17. #include <linux/pci.h>
  18. #include <linux/blkdev.h>
  19. #include <scsi/scsi_host.h>
  20. #include "aacraid.h"
  21. /**
  22. * aac_nark_ioremap
  23. * @size: mapping resize request
  24. *
  25. */
  26. static int aac_nark_ioremap(struct aac_dev * dev, u32 size)
  27. {
  28. if (!size) {
  29. iounmap(dev->regs.rx);
  30. dev->regs.rx = NULL;
  31. iounmap(dev->base);
  32. dev->base = NULL;
  33. return 0;
  34. }
  35. dev->base_start = pci_resource_start(dev->pdev, 2);
  36. dev->regs.rx = ioremap((u64)pci_resource_start(dev->pdev, 0) |
  37. ((u64)pci_resource_start(dev->pdev, 1) << 32),
  38. sizeof(struct rx_registers) - sizeof(struct rx_inbound));
  39. dev->base = NULL;
  40. if (dev->regs.rx == NULL)
  41. return -1;
  42. dev->base = ioremap(dev->base_start, size);
  43. if (dev->base == NULL) {
  44. iounmap(dev->regs.rx);
  45. dev->regs.rx = NULL;
  46. return -1;
  47. }
  48. dev->IndexRegs = &((struct rx_registers __iomem *)dev->base)->IndexRegs;
  49. return 0;
  50. }
  51. /**
  52. * aac_nark_init - initialize an NEMER/ARK Split Bar card
  53. * @dev: device to configure
  54. *
  55. */
  56. int aac_nark_init(struct aac_dev * dev)
  57. {
  58. /*
  59. * Fill in the function dispatch table.
  60. */
  61. dev->a_ops.adapter_ioremap = aac_nark_ioremap;
  62. dev->a_ops.adapter_comm = aac_rx_select_comm;
  63. return _aac_rx_init(dev);
  64. }