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