| 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 | |
| 18 | #include <linux/pci.h> |
| 19 | #include <linux/blkdev.h> |
| 20 | |
| 21 | #include <scsi/scsi_host.h> |
| 22 | |
| 23 | #include "aacraid.h" |
| 24 | |
| 25 | /** |
| 26 | * aac_nark_ioremap |
| 27 | * @dev: device to ioremap |
| 28 | * @size: mapping resize request |
| 29 | * |
| 30 | */ |
| 31 | static int aac_nark_ioremap(struct aac_dev * dev, u32 size) |
| 32 | { |
| 33 | if (!size) { |
| 34 | iounmap(addr: dev->regs.rx); |
| 35 | dev->regs.rx = NULL; |
| 36 | iounmap(addr: dev->base); |
| 37 | dev->base = NULL; |
| 38 | return 0; |
| 39 | } |
| 40 | dev->base_start = pci_resource_start(dev->pdev, 2); |
| 41 | dev->regs.rx = ioremap(offset: (u64)pci_resource_start(dev->pdev, 0) | |
| 42 | ((u64)pci_resource_start(dev->pdev, 1) << 32), |
| 43 | size: sizeof(struct rx_registers) - sizeof(struct rx_inbound)); |
| 44 | dev->base = NULL; |
| 45 | if (dev->regs.rx == NULL) |
| 46 | return -1; |
| 47 | dev->base = ioremap(offset: dev->base_start, size); |
| 48 | if (dev->base == NULL) { |
| 49 | iounmap(addr: dev->regs.rx); |
| 50 | dev->regs.rx = NULL; |
| 51 | return -1; |
| 52 | } |
| 53 | dev->IndexRegs = &((struct rx_registers __iomem *)dev->base)->IndexRegs; |
| 54 | return 0; |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * aac_nark_init - initialize an NEMER/ARK Split Bar card |
| 59 | * @dev: device to configure |
| 60 | * |
| 61 | */ |
| 62 | |
| 63 | int aac_nark_init(struct aac_dev * dev) |
| 64 | { |
| 65 | /* |
| 66 | * Fill in the function dispatch table. |
| 67 | */ |
| 68 | dev->a_ops.adapter_ioremap = aac_nark_ioremap; |
| 69 | dev->a_ops.adapter_comm = aac_rx_select_comm; |
| 70 | |
| 71 | return _aac_rx_init(dev); |
| 72 | } |
| 73 |