Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Adaptec AAC series RAID controller driver |
Alan Cox | fa195af | 2008-10-27 15:16:36 +0000 | [diff] [blame] | 3 | * (c) Copyright 2001 Red Hat Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
| 5 | * based on the old aacraid driver that is.. |
| 6 | * Adaptec aacraid device driver for Linux. |
| 7 | * |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 8 | * Copyright (c) 2000-2010 Adaptec, Inc. |
| 9 | * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2, or (at your option) |
| 14 | * any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; see the file COPYING. If not, write to |
| 23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | * |
| 25 | * Module Name: |
| 26 | * comminit.c |
| 27 | * |
| 28 | * Abstract: This supports the initialization of the host adapter commuication interface. |
| 29 | * This is a platform dependent module for the pci cyclone board. |
| 30 | * |
| 31 | */ |
| 32 | |
| 33 | #include <linux/kernel.h> |
| 34 | #include <linux/init.h> |
| 35 | #include <linux/types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include <linux/pci.h> |
| 37 | #include <linux/spinlock.h> |
| 38 | #include <linux/slab.h> |
| 39 | #include <linux/blkdev.h> |
Raghava Aditya Renukunta | 78cbccd | 2016-04-25 23:32:37 -0700 | [diff] [blame] | 40 | #include <linux/delay.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <linux/completion.h> |
| 42 | #include <linux/mm.h> |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 43 | #include <scsi/scsi_host.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | #include "aacraid.h" |
| 46 | |
Mark Haverkamp | bed30de | 2005-08-03 15:38:51 -0700 | [diff] [blame] | 47 | struct aac_common aac_config = { |
| 48 | .irq_mod = 1 |
| 49 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
Raghava Aditya Renukunta | 78cbccd | 2016-04-25 23:32:37 -0700 | [diff] [blame] | 51 | static inline int aac_is_msix_mode(struct aac_dev *dev) |
| 52 | { |
Dave Carroll | 5684c7d | 2017-02-09 11:04:47 -0700 | [diff] [blame] | 53 | u32 status = 0; |
Raghava Aditya Renukunta | 78cbccd | 2016-04-25 23:32:37 -0700 | [diff] [blame] | 54 | |
Dave Carroll | 5684c7d | 2017-02-09 11:04:47 -0700 | [diff] [blame] | 55 | if (dev->pdev->device == PMC_DEVICE_S6 || |
| 56 | dev->pdev->device == PMC_DEVICE_S7 || |
| 57 | dev->pdev->device == PMC_DEVICE_S8) { |
| 58 | status = src_readl(dev, MUnit.OMR); |
| 59 | } |
Raghava Aditya Renukunta | 78cbccd | 2016-04-25 23:32:37 -0700 | [diff] [blame] | 60 | return (status & AAC_INT_MODE_MSIX); |
| 61 | } |
| 62 | |
| 63 | static inline void aac_change_to_intx(struct aac_dev *dev) |
| 64 | { |
| 65 | aac_src_access_devreg(dev, AAC_DISABLE_MSIX); |
| 66 | aac_src_access_devreg(dev, AAC_ENABLE_INTX); |
| 67 | } |
| 68 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign) |
| 70 | { |
| 71 | unsigned char *base; |
| 72 | unsigned long size, align; |
Mahesh Rajashekhara | ef61623 | 2015-03-26 10:41:30 -0400 | [diff] [blame] | 73 | const unsigned long fibsize = dev->max_fib_size; |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 74 | const unsigned long printfbufsiz = 256; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 75 | unsigned long host_rrq_size = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | struct aac_init *init; |
| 77 | dma_addr_t phys; |
Leubner, Achim | d8e96507 | 2009-04-01 07:16:08 -0700 | [diff] [blame] | 78 | unsigned long aac_max_hostphysmempages; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 80 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || |
| 81 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 82 | host_rrq_size = (dev->scsi_host_ptr->can_queue |
| 83 | + AAC_NUM_MGT_FIB) * sizeof(u32); |
| 84 | size = fibsize + sizeof(struct aac_init) + commsize + |
| 85 | commalign + printfbufsiz + host_rrq_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
| 87 | base = pci_alloc_consistent(dev->pdev, size, &phys); |
| 88 | |
| 89 | if(base == NULL) |
| 90 | { |
| 91 | printk(KERN_ERR "aacraid: unable to create mapping.\n"); |
| 92 | return 0; |
| 93 | } |
| 94 | dev->comm_addr = (void *)base; |
| 95 | dev->comm_phys = phys; |
| 96 | dev->comm_size = size; |
| 97 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 98 | if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || |
| 99 | dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 100 | dev->host_rrq = (u32 *)(base + fibsize); |
| 101 | dev->host_rrq_pa = phys + fibsize; |
| 102 | memset(dev->host_rrq, 0, host_rrq_size); |
| 103 | } |
| 104 | |
| 105 | dev->init = (struct aac_init *)(base + fibsize + host_rrq_size); |
| 106 | dev->init_pa = phys + fibsize + host_rrq_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
| 108 | init = dev->init; |
| 109 | |
| 110 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION); |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 111 | if (dev->max_fib_size != sizeof(struct hw_fib)) |
| 112 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); |
Raghava Aditya Renukunta | a6cd454 | 2016-04-25 23:31:03 -0700 | [diff] [blame] | 113 | init->Sa_MSIXVectors = cpu_to_le32(SA_INIT_NUM_MSIXVECTORS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | init->fsrev = cpu_to_le32(dev->fsrev); |
| 115 | |
| 116 | /* |
| 117 | * Adapter Fibs are the first thing allocated so that they |
| 118 | * start page aligned |
| 119 | */ |
| 120 | dev->aif_base_va = (struct hw_fib *)base; |
| 121 | |
| 122 | init->AdapterFibsVirtualAddress = 0; |
| 123 | init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys); |
| 124 | init->AdapterFibsSize = cpu_to_le32(fibsize); |
| 125 | init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib)); |
Leubner, Achim | d8e96507 | 2009-04-01 07:16:08 -0700 | [diff] [blame] | 126 | /* |
| 127 | * number of 4k pages of host physical memory. The aacraid fw needs |
| 128 | * this number to be less than 4gb worth of pages. New firmware doesn't |
| 129 | * have any issues with the mapping system, but older Firmware did, and |
| 130 | * had *troubles* dealing with the math overloading past 32 bits, thus |
| 131 | * we must limit this field. |
| 132 | */ |
| 133 | aac_max_hostphysmempages = dma_get_required_mask(&dev->pdev->dev) >> 12; |
| 134 | if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES) |
| 135 | init->HostPhysMemPages = cpu_to_le32(aac_max_hostphysmempages); |
| 136 | else |
| 137 | init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 139 | init->InitFlags = cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | |
| 140 | INITFLAGS_DRIVER_SUPPORTS_PM); |
| 141 | init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); |
| 142 | init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); |
| 143 | init->MaxFibSize = cpu_to_le32(dev->max_fib_size); |
| 144 | init->MaxNumAif = cpu_to_le32(dev->max_num_aif); |
| 145 | |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 146 | if (dev->comm_interface == AAC_COMM_MESSAGE) { |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 147 | init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 148 | dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 149 | } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { |
| 150 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6); |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 151 | init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | |
| 152 | INITFLAGS_NEW_COMM_TYPE1_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED); |
| 153 | init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32)); |
| 154 | init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff)); |
| 155 | dprintk((KERN_WARNING"aacraid: New Comm Interface type1 enabled\n")); |
| 156 | } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { |
| 157 | init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_7); |
| 158 | init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | |
| 159 | INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED); |
| 160 | init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32)); |
| 161 | init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff)); |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 162 | /* number of MSI-X */ |
| 163 | init->Sa_MSIXVectors = cpu_to_le32(dev->max_msix); |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 164 | dprintk((KERN_WARNING"aacraid: New Comm Interface type2 enabled\n")); |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 165 | } |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 166 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | /* |
| 168 | * Increment the base address by the amount already used |
| 169 | */ |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 170 | base = base + fibsize + host_rrq_size + sizeof(struct aac_init); |
| 171 | phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size + |
| 172 | sizeof(struct aac_init)); |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | /* |
| 175 | * Align the beginning of Headers to commalign |
| 176 | */ |
Al Viro | 142956a | 2007-10-29 05:11:28 +0000 | [diff] [blame] | 177 | align = (commalign - ((uintptr_t)(base) & (commalign - 1))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | base = base + align; |
| 179 | phys = phys + align; |
| 180 | /* |
| 181 | * Fill in addresses of the Comm Area Headers and Queues |
| 182 | */ |
| 183 | *commaddr = base; |
| 184 | init->CommHeaderAddress = cpu_to_le32((u32)phys); |
| 185 | /* |
| 186 | * Increment the base address by the size of the CommArea |
| 187 | */ |
| 188 | base = base + commsize; |
| 189 | phys = phys + commsize; |
| 190 | /* |
| 191 | * Place the Printf buffer area after the Fast I/O comm area. |
| 192 | */ |
| 193 | dev->printfbuf = (void *)base; |
| 194 | init->printfbuf = cpu_to_le32(phys); |
| 195 | init->printfbufsiz = cpu_to_le32(printfbufsiz); |
| 196 | memset(base, 0, printfbufsiz); |
| 197 | return 1; |
| 198 | } |
| 199 | |
| 200 | static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) |
| 201 | { |
Mahesh Rajashekhara | ef61623 | 2015-03-26 10:41:30 -0400 | [diff] [blame] | 202 | atomic_set(&q->numpending, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | q->dev = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | init_waitqueue_head(&q->cmdready); |
| 205 | INIT_LIST_HEAD(&q->cmdq); |
| 206 | init_waitqueue_head(&q->qfull); |
| 207 | spin_lock_init(&q->lockdata); |
| 208 | q->lock = &q->lockdata; |
Mark Haverkamp | 56b5871 | 2005-04-27 06:05:51 -0700 | [diff] [blame] | 209 | q->headers.producer = (__le32 *)mem; |
| 210 | q->headers.consumer = (__le32 *)(mem+1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | *(q->headers.producer) = cpu_to_le32(qsize); |
| 212 | *(q->headers.consumer) = cpu_to_le32(qsize); |
| 213 | q->entries = qsize; |
| 214 | } |
| 215 | |
| 216 | /** |
| 217 | * aac_send_shutdown - shutdown an adapter |
| 218 | * @dev: Adapter to shutdown |
| 219 | * |
| 220 | * This routine will send a VM_CloseAll (shutdown) request to the adapter. |
| 221 | */ |
| 222 | |
| 223 | int aac_send_shutdown(struct aac_dev * dev) |
| 224 | { |
| 225 | struct fib * fibctx; |
| 226 | struct aac_close *cmd; |
| 227 | int status; |
| 228 | |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 229 | fibctx = aac_fib_alloc(dev); |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 230 | if (!fibctx) |
| 231 | return -ENOMEM; |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 232 | aac_fib_init(fibctx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Raghava Aditya Renukunta | fbd18598 | 2016-02-03 15:06:06 -0800 | [diff] [blame] | 234 | mutex_lock(&dev->ioctl_mutex); |
| 235 | dev->adapter_shutdown = 1; |
| 236 | mutex_unlock(&dev->ioctl_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
Raghava Aditya Renukunta | fbd18598 | 2016-02-03 15:06:06 -0800 | [diff] [blame] | 238 | cmd = (struct aac_close *) fib_data(fibctx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | cmd->command = cpu_to_le32(VM_CloseAll); |
Mahesh Rajashekhara | 2c10cd4 | 2013-03-19 12:37:26 +0530 | [diff] [blame] | 240 | cmd->cid = cpu_to_le32(0xfffffffe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 242 | status = aac_fib_send(ContainerCommand, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | fibctx, |
| 244 | sizeof(struct aac_close), |
| 245 | FsaNormal, |
Mark Haverkamp | 9203344 | 2005-09-20 12:56:50 -0700 | [diff] [blame] | 246 | -2 /* Timeout silently */, 1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | NULL, NULL); |
| 248 | |
Mark Haverkamp | 90ee346 | 2006-08-03 08:03:07 -0700 | [diff] [blame] | 249 | if (status >= 0) |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 250 | aac_fib_complete(fibctx); |
Penchala Narasimha Reddy Chilakala, ERS-HCLTech | cacb6dc | 2009-12-21 18:39:27 +0530 | [diff] [blame] | 251 | /* FIB should be freed only after getting the response from the F/W */ |
| 252 | if (status != -ERESTARTSYS) |
| 253 | aac_fib_free(fibctx); |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 254 | if ((dev->pdev->device == PMC_DEVICE_S7 || |
| 255 | dev->pdev->device == PMC_DEVICE_S8 || |
| 256 | dev->pdev->device == PMC_DEVICE_S9) && |
| 257 | dev->msi_enabled) |
| 258 | aac_src_access_devreg(dev, AAC_ENABLE_INTX); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | return status; |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * aac_comm_init - Initialise FSA data structures |
| 264 | * @dev: Adapter to initialise |
| 265 | * |
| 266 | * Initializes the data structures that are required for the FSA commuication |
| 267 | * interface to operate. |
| 268 | * Returns |
| 269 | * 1 - if we were able to init the commuication interface. |
| 270 | * 0 - If there were errors initing. This is a fatal error. |
| 271 | */ |
| 272 | |
Adrian Bunk | 4833869 | 2005-04-25 19:45:58 -0700 | [diff] [blame] | 273 | static int aac_comm_init(struct aac_dev * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | { |
| 275 | unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; |
| 276 | unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; |
| 277 | u32 *headers; |
| 278 | struct aac_entry * queues; |
| 279 | unsigned long size; |
| 280 | struct aac_queue_block * comm = dev->queues; |
| 281 | /* |
| 282 | * Now allocate and initialize the zone structures used as our |
| 283 | * pool of FIB context records. The size of the zone is based |
| 284 | * on the system memory size. We also initialize the mutex used |
| 285 | * to protect the zone. |
| 286 | */ |
| 287 | spin_lock_init(&dev->fib_lock); |
| 288 | |
| 289 | /* |
André Goddard Rosa | af901ca | 2009-11-14 13:09:05 -0200 | [diff] [blame] | 290 | * Allocate the physically contiguous space for the commuication |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | * queue headers. |
| 292 | */ |
| 293 | |
| 294 | size = hdrsize + queuesize; |
| 295 | |
| 296 | if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) |
| 297 | return -ENOMEM; |
| 298 | |
| 299 | queues = (struct aac_entry *)(((ulong)headers) + hdrsize); |
| 300 | |
| 301 | /* Adapter to Host normal priority Command queue */ |
| 302 | comm->queue[HostNormCmdQueue].base = queues; |
| 303 | aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); |
| 304 | queues += HOST_NORM_CMD_ENTRIES; |
| 305 | headers += 2; |
| 306 | |
| 307 | /* Adapter to Host high priority command queue */ |
| 308 | comm->queue[HostHighCmdQueue].base = queues; |
| 309 | aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); |
| 310 | |
| 311 | queues += HOST_HIGH_CMD_ENTRIES; |
| 312 | headers +=2; |
| 313 | |
| 314 | /* Host to adapter normal priority command queue */ |
| 315 | comm->queue[AdapNormCmdQueue].base = queues; |
| 316 | aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); |
| 317 | |
| 318 | queues += ADAP_NORM_CMD_ENTRIES; |
| 319 | headers += 2; |
| 320 | |
| 321 | /* host to adapter high priority command queue */ |
| 322 | comm->queue[AdapHighCmdQueue].base = queues; |
| 323 | aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); |
| 324 | |
| 325 | queues += ADAP_HIGH_CMD_ENTRIES; |
| 326 | headers += 2; |
| 327 | |
| 328 | /* adapter to host normal priority response queue */ |
| 329 | comm->queue[HostNormRespQueue].base = queues; |
| 330 | aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); |
| 331 | queues += HOST_NORM_RESP_ENTRIES; |
| 332 | headers += 2; |
| 333 | |
| 334 | /* adapter to host high priority response queue */ |
| 335 | comm->queue[HostHighRespQueue].base = queues; |
| 336 | aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); |
| 337 | |
| 338 | queues += HOST_HIGH_RESP_ENTRIES; |
| 339 | headers += 2; |
| 340 | |
| 341 | /* host to adapter normal priority response queue */ |
| 342 | comm->queue[AdapNormRespQueue].base = queues; |
| 343 | aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); |
| 344 | |
| 345 | queues += ADAP_NORM_RESP_ENTRIES; |
| 346 | headers += 2; |
| 347 | |
| 348 | /* host to adapter high priority response queue */ |
| 349 | comm->queue[AdapHighRespQueue].base = queues; |
| 350 | aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); |
| 351 | |
| 352 | comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; |
| 353 | comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; |
| 354 | comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; |
| 355 | comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; |
| 356 | |
| 357 | return 0; |
| 358 | } |
| 359 | |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 360 | void aac_define_int_mode(struct aac_dev *dev) |
| 361 | { |
Mahesh Rajashekhara | 84859c9 | 2015-08-28 06:38:40 -0400 | [diff] [blame] | 362 | int i, msi_count, min_msix; |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 363 | |
| 364 | msi_count = i = 0; |
| 365 | /* max. vectors from GET_COMM_PREFERRED_SETTINGS */ |
| 366 | if (dev->max_msix == 0 || |
| 367 | dev->pdev->device == PMC_DEVICE_S6 || |
| 368 | dev->sync_mode) { |
| 369 | dev->max_msix = 1; |
| 370 | dev->vector_cap = |
| 371 | dev->scsi_host_ptr->can_queue + |
| 372 | AAC_NUM_MGT_FIB; |
| 373 | return; |
| 374 | } |
| 375 | |
| 376 | /* Don't bother allocating more MSI-X vectors than cpus */ |
| 377 | msi_count = min(dev->max_msix, |
| 378 | (unsigned int)num_online_cpus()); |
| 379 | |
| 380 | dev->max_msix = msi_count; |
| 381 | |
| 382 | if (msi_count > AAC_MAX_MSIX) |
| 383 | msi_count = AAC_MAX_MSIX; |
| 384 | |
| 385 | for (i = 0; i < msi_count; i++) |
| 386 | dev->msixentry[i].entry = i; |
| 387 | |
| 388 | if (msi_count > 1 && |
| 389 | pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) { |
Mahesh Rajashekhara | 84859c9 | 2015-08-28 06:38:40 -0400 | [diff] [blame] | 390 | min_msix = 2; |
| 391 | i = pci_enable_msix_range(dev->pdev, |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 392 | dev->msixentry, |
Mahesh Rajashekhara | 84859c9 | 2015-08-28 06:38:40 -0400 | [diff] [blame] | 393 | min_msix, |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 394 | msi_count); |
Mahesh Rajashekhara | 84859c9 | 2015-08-28 06:38:40 -0400 | [diff] [blame] | 395 | if (i > 0) { |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 396 | dev->msi_enabled = 1; |
Mahesh Rajashekhara | 84859c9 | 2015-08-28 06:38:40 -0400 | [diff] [blame] | 397 | msi_count = i; |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 398 | } else { |
| 399 | dev->msi_enabled = 0; |
Raghava Aditya Renukunta | e4d5c4e | 2016-04-25 23:31:43 -0700 | [diff] [blame] | 400 | dev_err(&dev->pdev->dev, |
| 401 | "MSIX not supported!! Will try INTX 0x%x.\n", i); |
Mahesh Rajashekhara | de665f2 | 2015-08-28 06:38:34 -0400 | [diff] [blame] | 402 | } |
| 403 | } |
| 404 | |
| 405 | if (!dev->msi_enabled) |
| 406 | dev->max_msix = msi_count = 1; |
| 407 | else { |
| 408 | if (dev->max_msix > msi_count) |
| 409 | dev->max_msix = msi_count; |
| 410 | } |
| 411 | dev->vector_cap = |
| 412 | (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) / |
| 413 | msi_count; |
| 414 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | struct aac_dev *aac_init_adapter(struct aac_dev *dev) |
| 416 | { |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 417 | u32 status[5]; |
| 418 | struct Scsi_Host * host = dev->scsi_host_ptr; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 419 | extern int aac_sync_mode; |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 420 | |
| 421 | /* |
| 422 | * Check the preferred comm settings, defaults from template. |
| 423 | */ |
Penchala Narasimha Reddy Chilakala, ERS-HCLTech | cacb6dc | 2009-12-21 18:39:27 +0530 | [diff] [blame] | 424 | dev->management_fib_count = 0; |
| 425 | spin_lock_init(&dev->manage_lock); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 426 | spin_lock_init(&dev->sync_lock); |
Mahesh Rajashekhara | c699278 | 2015-08-28 06:38:36 -0400 | [diff] [blame] | 427 | spin_lock_init(&dev->iq_lock); |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 428 | dev->max_fib_size = sizeof(struct hw_fib); |
| 429 | dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size |
| 430 | - sizeof(struct aac_fibhdr) |
Mark Haverkamp | 63a70ee | 2005-09-20 12:57:04 -0700 | [diff] [blame] | 431 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
| 432 | / sizeof(struct sgentry); |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 433 | dev->comm_interface = AAC_COMM_PRODUCER; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 434 | dev->raw_io_interface = dev->raw_io_64 = 0; |
| 435 | |
Raghava Aditya Renukunta | 78cbccd | 2016-04-25 23:32:37 -0700 | [diff] [blame] | 436 | |
| 437 | /* |
| 438 | * Enable INTX mode, if not done already Enabled |
| 439 | */ |
| 440 | if (aac_is_msix_mode(dev)) { |
| 441 | aac_change_to_intx(dev); |
| 442 | dev_info(&dev->pdev->dev, "Changed firmware to INTX mode"); |
| 443 | } |
| 444 | |
Mark Haverkamp | 7a8cf29 | 2005-09-22 09:15:24 -0700 | [diff] [blame] | 445 | if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 446 | 0, 0, 0, 0, 0, 0, |
| 447 | status+0, status+1, status+2, status+3, NULL)) && |
Mark Haverkamp | 7a8cf29 | 2005-09-22 09:15:24 -0700 | [diff] [blame] | 448 | (status[0] == 0x00000001)) { |
Mahesh Rajashekhara | dafde94 | 2015-03-26 10:41:28 -0400 | [diff] [blame] | 449 | dev->doorbell_mask = status[3]; |
Salyzyn, Mark | a3940da | 2008-01-08 12:48:25 -0800 | [diff] [blame] | 450 | if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64)) |
Mark Haverkamp | 7a8cf29 | 2005-09-22 09:15:24 -0700 | [diff] [blame] | 451 | dev->raw_io_64 = 1; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 452 | dev->sync_mode = aac_sync_mode; |
| 453 | if (dev->a_ops.adapter_comm && |
| 454 | (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM))) { |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 455 | dev->comm_interface = AAC_COMM_MESSAGE; |
| 456 | dev->raw_io_interface = 1; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 457 | if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1))) { |
| 458 | /* driver supports TYPE1 (Tupelo) */ |
| 459 | dev->comm_interface = AAC_COMM_MESSAGE_TYPE1; |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 460 | } else if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE2))) { |
| 461 | /* driver supports TYPE2 (Denali) */ |
| 462 | dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 463 | } else if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE4)) || |
Mahesh Rajashekhara | 85d22bb | 2012-07-14 18:18:51 +0530 | [diff] [blame] | 464 | (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE3))) { |
| 465 | /* driver doesn't TYPE3 and TYPE4 */ |
| 466 | /* switch to sync. mode */ |
| 467 | dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; |
| 468 | dev->sync_mode = 1; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 469 | } |
| 470 | } |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 471 | if ((dev->comm_interface == AAC_COMM_MESSAGE) && |
| 472 | (status[2] > dev->base_size)) { |
Mark Haverkamp | 76a7f8f | 2006-09-19 09:00:02 -0700 | [diff] [blame] | 473 | aac_adapter_ioremap(dev, 0); |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 474 | dev->base_size = status[2]; |
Mark Haverkamp | 76a7f8f | 2006-09-19 09:00:02 -0700 | [diff] [blame] | 475 | if (aac_adapter_ioremap(dev, status[2])) { |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 476 | /* remap failed, go back ... */ |
Mark Haverkamp | 2871332 | 2007-01-23 14:59:20 -0800 | [diff] [blame] | 477 | dev->comm_interface = AAC_COMM_PRODUCER; |
Mark Haverkamp | 76a7f8f | 2006-09-19 09:00:02 -0700 | [diff] [blame] | 478 | if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) { |
Mark Haverkamp | 8e0c5eb | 2005-10-24 10:52:22 -0700 | [diff] [blame] | 479 | printk(KERN_WARNING |
| 480 | "aacraid: unable to map adapter.\n"); |
| 481 | return NULL; |
| 482 | } |
| 483 | } |
| 484 | } |
Mark Haverkamp | 7a8cf29 | 2005-09-22 09:15:24 -0700 | [diff] [blame] | 485 | } |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 486 | dev->max_msix = 0; |
| 487 | dev->msi_enabled = 0; |
Mahesh Rajashekhara | f9c4259 | 2015-03-26 10:41:29 -0400 | [diff] [blame] | 488 | dev->adapter_shutdown = 0; |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 489 | if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, |
| 490 | 0, 0, 0, 0, 0, 0, |
| 491 | status+0, status+1, status+2, status+3, status+4)) |
| 492 | && (status[0] == 0x00000001)) { |
| 493 | /* |
| 494 | * status[1] >> 16 maximum command size in KB |
| 495 | * status[1] & 0xFFFF maximum FIB size |
| 496 | * status[2] >> 16 maximum SG elements to driver |
| 497 | * status[2] & 0xFFFF maximum SG elements from driver |
| 498 | * status[3] & 0xFFFF maximum number FIBs outstanding |
| 499 | */ |
| 500 | host->max_sectors = (status[1] >> 16) << 1; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 501 | /* Multiple of 32 for PMC */ |
| 502 | dev->max_fib_size = status[1] & 0xFFE0; |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 503 | host->sg_tablesize = status[2] >> 16; |
| 504 | dev->sg_tablesize = status[2] & 0xFFFF; |
Mahesh Rajashekhara | 2b4df6e | 2013-01-10 17:52:51 +0530 | [diff] [blame] | 505 | if (dev->pdev->device == PMC_DEVICE_S7 || |
| 506 | dev->pdev->device == PMC_DEVICE_S8 || |
| 507 | dev->pdev->device == PMC_DEVICE_S9) |
| 508 | host->can_queue = ((status[3] >> 16) ? (status[3] >> 16) : |
| 509 | (status[3] & 0xFFFF)) - AAC_NUM_MGT_FIB; |
| 510 | else |
| 511 | host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; |
Mahesh Rajashekhara | e8b12f0 | 2011-03-17 02:10:32 -0700 | [diff] [blame] | 512 | dev->max_num_aif = status[4] & 0xFFFF; |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 513 | /* |
| 514 | * NOTE: |
| 515 | * All these overrides are based on a fixed internal |
| 516 | * knowledge and understanding of existing adapters, |
| 517 | * acbsize should be set with caution. |
| 518 | */ |
| 519 | if (acbsize == 512) { |
| 520 | host->max_sectors = AAC_MAX_32BIT_SGBCOUNT; |
| 521 | dev->max_fib_size = 512; |
| 522 | dev->sg_tablesize = host->sg_tablesize |
| 523 | = (512 - sizeof(struct aac_fibhdr) |
Mark Haverkamp | 63a70ee | 2005-09-20 12:57:04 -0700 | [diff] [blame] | 524 | - sizeof(struct aac_write) + sizeof(struct sgentry)) |
| 525 | / sizeof(struct sgentry); |
Mark Haverkamp | 7c00ffa | 2005-05-16 18:28:42 -0700 | [diff] [blame] | 526 | host->can_queue = AAC_NUM_IO_FIB; |
| 527 | } else if (acbsize == 2048) { |
| 528 | host->max_sectors = 512; |
| 529 | dev->max_fib_size = 2048; |
| 530 | host->sg_tablesize = 65; |
| 531 | dev->sg_tablesize = 81; |
| 532 | host->can_queue = 512 - AAC_NUM_MGT_FIB; |
| 533 | } else if (acbsize == 4096) { |
| 534 | host->max_sectors = 1024; |
| 535 | dev->max_fib_size = 4096; |
| 536 | host->sg_tablesize = 129; |
| 537 | dev->sg_tablesize = 166; |
| 538 | host->can_queue = 256 - AAC_NUM_MGT_FIB; |
| 539 | } else if (acbsize == 8192) { |
| 540 | host->max_sectors = 2048; |
| 541 | dev->max_fib_size = 8192; |
| 542 | host->sg_tablesize = 257; |
| 543 | dev->sg_tablesize = 337; |
| 544 | host->can_queue = 128 - AAC_NUM_MGT_FIB; |
| 545 | } else if (acbsize > 0) { |
| 546 | printk("Illegal acbsize=%d ignored\n", acbsize); |
| 547 | } |
| 548 | } |
| 549 | { |
| 550 | |
| 551 | if (numacb > 0) { |
| 552 | if (numacb < host->can_queue) |
| 553 | host->can_queue = numacb; |
| 554 | else |
| 555 | printk("numacb=%d ignored\n", numacb); |
| 556 | } |
| 557 | } |
| 558 | |
Mahesh Rajashekhara | 2b4df6e | 2013-01-10 17:52:51 +0530 | [diff] [blame] | 559 | if (host->can_queue > AAC_NUM_IO_FIB) |
| 560 | host->can_queue = AAC_NUM_IO_FIB; |
| 561 | |
Mahesh Rajashekhara | 495c021 | 2015-03-26 10:41:25 -0400 | [diff] [blame] | 562 | if (dev->pdev->device == PMC_DEVICE_S6 || |
| 563 | dev->pdev->device == PMC_DEVICE_S7 || |
| 564 | dev->pdev->device == PMC_DEVICE_S8 || |
| 565 | dev->pdev->device == PMC_DEVICE_S9) |
| 566 | aac_define_int_mode(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | /* |
| 568 | * Ok now init the communication subsystem |
| 569 | */ |
| 570 | |
Salyzyn, Mark | 4dbc22d | 2007-04-16 11:21:50 -0400 | [diff] [blame] | 571 | dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | if (dev->queues == NULL) { |
| 573 | printk(KERN_ERR "Error could not allocate comm region.\n"); |
| 574 | return NULL; |
| 575 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | |
| 577 | if (aac_comm_init(dev)<0){ |
| 578 | kfree(dev->queues); |
| 579 | return NULL; |
| 580 | } |
| 581 | /* |
| 582 | * Initialize the list of fibs |
| 583 | */ |
Mark Haverkamp | bfb35aa8 | 2006-02-01 09:30:55 -0800 | [diff] [blame] | 584 | if (aac_fib_setup(dev) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | kfree(dev->queues); |
| 586 | return NULL; |
| 587 | } |
| 588 | |
| 589 | INIT_LIST_HEAD(&dev->fib_list); |
Mahesh Rajashekhara | 1160461 | 2012-02-08 22:51:04 -0800 | [diff] [blame] | 590 | INIT_LIST_HEAD(&dev->sync_fib_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 592 | return dev; |
| 593 | } |
| 594 | |