v4.19.13 snapshot.
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
new file mode 100644
index 0000000..0dc7b5a
--- /dev/null
+++ b/drivers/scsi/aacraid/comminit.c
@@ -0,0 +1,670 @@
+/*
+ * Adaptec AAC series RAID controller driver
+ * (c) Copyright 2001 Red Hat Inc.
+ *
+ * based on the old aacraid driver that is..
+ * Adaptec aacraid device driver for Linux.
+ *
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com)
+ * 2016-2017 Microsemi Corp. (aacraid@microsemi.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Module Name:
+ * comminit.c
+ *
+ * Abstract: This supports the initialization of the host adapter commuication interface.
+ * This is a platform dependent module for the pci cyclone board.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/completion.h>
+#include <linux/mm.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+
+#include "aacraid.h"
+
+struct aac_common aac_config = {
+ .irq_mod = 1
+};
+
+static inline int aac_is_msix_mode(struct aac_dev *dev)
+{
+ u32 status = 0;
+
+ if (aac_is_src(dev))
+ status = src_readl(dev, MUnit.OMR);
+ return (status & AAC_INT_MODE_MSIX);
+}
+
+static inline void aac_change_to_intx(struct aac_dev *dev)
+{
+ aac_src_access_devreg(dev, AAC_DISABLE_MSIX);
+ aac_src_access_devreg(dev, AAC_ENABLE_INTX);
+}
+
+static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign)
+{
+ unsigned char *base;
+ unsigned long size, align;
+ const unsigned long fibsize = dev->max_fib_size;
+ const unsigned long printfbufsiz = 256;
+ unsigned long host_rrq_size, aac_init_size;
+ union aac_init *init;
+ dma_addr_t phys;
+ unsigned long aac_max_hostphysmempages;
+
+ if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) ||
+ (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) ||
+ (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 &&
+ !dev->sa_firmware)) {
+ host_rrq_size =
+ (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB)
+ * sizeof(u32);
+ aac_init_size = sizeof(union aac_init);
+ } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 &&
+ dev->sa_firmware) {
+ host_rrq_size = (dev->scsi_host_ptr->can_queue
+ + AAC_NUM_MGT_FIB) * sizeof(u32) * AAC_MAX_MSIX;
+ aac_init_size = sizeof(union aac_init) +
+ (AAC_MAX_HRRQ - 1) * sizeof(struct _rrq);
+ } else {
+ host_rrq_size = 0;
+ aac_init_size = sizeof(union aac_init);
+ }
+ size = fibsize + aac_init_size + commsize + commalign +
+ printfbufsiz + host_rrq_size;
+
+ base = dma_alloc_coherent(&dev->pdev->dev, size, &phys, GFP_KERNEL);
+ if (base == NULL) {
+ printk(KERN_ERR "aacraid: unable to create mapping.\n");
+ return 0;
+ }
+
+ dev->comm_addr = (void *)base;
+ dev->comm_phys = phys;
+ dev->comm_size = size;
+
+ if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) ||
+ (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) ||
+ (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3)) {
+ dev->host_rrq = (u32 *)(base + fibsize);
+ dev->host_rrq_pa = phys + fibsize;
+ memset(dev->host_rrq, 0, host_rrq_size);
+ }
+
+ dev->init = (union aac_init *)(base + fibsize + host_rrq_size);
+ dev->init_pa = phys + fibsize + host_rrq_size;
+
+ init = dev->init;
+
+ if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) {
+ int i;
+ u64 addr;
+
+ init->r8.init_struct_revision =
+ cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_8);
+ init->r8.init_flags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED |
+ INITFLAGS_DRIVER_USES_UTC_TIME |
+ INITFLAGS_DRIVER_SUPPORTS_PM);
+ init->r8.init_flags |=
+ cpu_to_le32(INITFLAGS_DRIVER_SUPPORTS_HBA_MODE);
+ init->r8.rr_queue_count = cpu_to_le32(dev->max_msix);
+ init->r8.max_io_size =
+ cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
+ init->r8.max_num_aif = init->r8.reserved1 =
+ init->r8.reserved2 = 0;
+
+ for (i = 0; i < dev->max_msix; i++) {
+ addr = (u64)dev->host_rrq_pa + dev->vector_cap * i *
+ sizeof(u32);
+ init->r8.rrq[i].host_addr_high = cpu_to_le32(
+ upper_32_bits(addr));
+ init->r8.rrq[i].host_addr_low = cpu_to_le32(
+ lower_32_bits(addr));
+ init->r8.rrq[i].msix_id = i;
+ init->r8.rrq[i].element_count = cpu_to_le16(
+ (u16)dev->vector_cap);
+ init->r8.rrq[i].comp_thresh =
+ init->r8.rrq[i].unused = 0;
+ }
+
+ pr_warn("aacraid: Comm Interface type3 enabled\n");
+ } else {
+ init->r7.init_struct_revision =
+ cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION);
+ if (dev->max_fib_size != sizeof(struct hw_fib))
+ init->r7.init_struct_revision =
+ cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4);
+ init->r7.no_of_msix_vectors = cpu_to_le32(SA_MINIPORT_REVISION);
+ init->r7.fsrev = cpu_to_le32(dev->fsrev);
+
+ /*
+ * Adapter Fibs are the first thing allocated so that they
+ * start page aligned
+ */
+ dev->aif_base_va = (struct hw_fib *)base;
+
+ init->r7.adapter_fibs_virtual_address = 0;
+ init->r7.adapter_fibs_physical_address = cpu_to_le32((u32)phys);
+ init->r7.adapter_fibs_size = cpu_to_le32(fibsize);
+ init->r7.adapter_fib_align = cpu_to_le32(sizeof(struct hw_fib));
+
+ /*
+ * number of 4k pages of host physical memory. The aacraid fw
+ * needs this number to be less than 4gb worth of pages. New
+ * firmware doesn't have any issues with the mapping system, but
+ * older Firmware did, and had *troubles* dealing with the math
+ * overloading past 32 bits, thus we must limit this field.
+ */
+ aac_max_hostphysmempages =
+ dma_get_required_mask(&dev->pdev->dev) >> 12;
+ if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES)
+ init->r7.host_phys_mem_pages =
+ cpu_to_le32(aac_max_hostphysmempages);
+ else
+ init->r7.host_phys_mem_pages =
+ cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES);
+
+ init->r7.init_flags =
+ cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME |
+ INITFLAGS_DRIVER_SUPPORTS_PM);
+ init->r7.max_io_commands =
+ cpu_to_le32(dev->scsi_host_ptr->can_queue +
+ AAC_NUM_MGT_FIB);
+ init->r7.max_io_size =
+ cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9);
+ init->r7.max_fib_size = cpu_to_le32(dev->max_fib_size);
+ init->r7.max_num_aif = cpu_to_le32(dev->max_num_aif);
+
+ if (dev->comm_interface == AAC_COMM_MESSAGE) {
+ init->r7.init_flags |=
+ cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED);
+ pr_warn("aacraid: Comm Interface enabled\n");
+ } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) {
+ init->r7.init_struct_revision =
+ cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6);
+ init->r7.init_flags |=
+ cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED |
+ INITFLAGS_NEW_COMM_TYPE1_SUPPORTED |
+ INITFLAGS_FAST_JBOD_SUPPORTED);
+ init->r7.host_rrq_addr_high =
+ cpu_to_le32(upper_32_bits(dev->host_rrq_pa));
+ init->r7.host_rrq_addr_low =
+ cpu_to_le32(lower_32_bits(dev->host_rrq_pa));
+ pr_warn("aacraid: Comm Interface type1 enabled\n");
+ } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) {
+ init->r7.init_struct_revision =
+ cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_7);
+ init->r7.init_flags |=
+ cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED |
+ INITFLAGS_NEW_COMM_TYPE2_SUPPORTED |
+ INITFLAGS_FAST_JBOD_SUPPORTED);
+ init->r7.host_rrq_addr_high =
+ cpu_to_le32(upper_32_bits(dev->host_rrq_pa));
+ init->r7.host_rrq_addr_low =
+ cpu_to_le32(lower_32_bits(dev->host_rrq_pa));
+ init->r7.no_of_msix_vectors =
+ cpu_to_le32(dev->max_msix);
+ /* must be the COMM_PREFERRED_SETTINGS values */
+ pr_warn("aacraid: Comm Interface type2 enabled\n");
+ }
+ }
+
+ /*
+ * Increment the base address by the amount already used
+ */
+ base = base + fibsize + host_rrq_size + aac_init_size;
+ phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size +
+ aac_init_size);
+
+ /*
+ * Align the beginning of Headers to commalign
+ */
+ align = (commalign - ((uintptr_t)(base) & (commalign - 1)));
+ base = base + align;
+ phys = phys + align;
+ /*
+ * Fill in addresses of the Comm Area Headers and Queues
+ */
+ *commaddr = base;
+ if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3)
+ init->r7.comm_header_address = cpu_to_le32((u32)phys);
+ /*
+ * Increment the base address by the size of the CommArea
+ */
+ base = base + commsize;
+ phys = phys + commsize;
+ /*
+ * Place the Printf buffer area after the Fast I/O comm area.
+ */
+ dev->printfbuf = (void *)base;
+ if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3) {
+ init->r7.printfbuf = cpu_to_le32(phys);
+ init->r7.printfbufsiz = cpu_to_le32(printfbufsiz);
+ }
+ memset(base, 0, printfbufsiz);
+ return 1;
+}
+
+static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize)
+{
+ atomic_set(&q->numpending, 0);
+ q->dev = dev;
+ init_waitqueue_head(&q->cmdready);
+ INIT_LIST_HEAD(&q->cmdq);
+ init_waitqueue_head(&q->qfull);
+ spin_lock_init(&q->lockdata);
+ q->lock = &q->lockdata;
+ q->headers.producer = (__le32 *)mem;
+ q->headers.consumer = (__le32 *)(mem+1);
+ *(q->headers.producer) = cpu_to_le32(qsize);
+ *(q->headers.consumer) = cpu_to_le32(qsize);
+ q->entries = qsize;
+}
+
+static void aac_wait_for_io_completion(struct aac_dev *aac)
+{
+ unsigned long flagv = 0;
+ int i = 0;
+
+ for (i = 60; i; --i) {
+ struct scsi_device *dev;
+ struct scsi_cmnd *command;
+ int active = 0;
+
+ __shost_for_each_device(dev, aac->scsi_host_ptr) {
+ spin_lock_irqsave(&dev->list_lock, flagv);
+ list_for_each_entry(command, &dev->cmd_list, list) {
+ if (command->SCp.phase == AAC_OWNER_FIRMWARE) {
+ active++;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&dev->list_lock, flagv);
+ if (active)
+ break;
+
+ }
+ /*
+ * We can exit If all the commands are complete
+ */
+ if (active == 0)
+ break;
+ ssleep(1);
+ }
+}
+
+/**
+ * aac_send_shutdown - shutdown an adapter
+ * @dev: Adapter to shutdown
+ *
+ * This routine will send a VM_CloseAll (shutdown) request to the adapter.
+ */
+
+int aac_send_shutdown(struct aac_dev * dev)
+{
+ struct fib * fibctx;
+ struct aac_close *cmd;
+ int status = 0;
+
+ if (aac_adapter_check_health(dev))
+ return status;
+
+ if (!dev->adapter_shutdown) {
+ mutex_lock(&dev->ioctl_mutex);
+ dev->adapter_shutdown = 1;
+ mutex_unlock(&dev->ioctl_mutex);
+ }
+
+ aac_wait_for_io_completion(dev);
+
+ fibctx = aac_fib_alloc(dev);
+ if (!fibctx)
+ return -ENOMEM;
+ aac_fib_init(fibctx);
+
+ cmd = (struct aac_close *) fib_data(fibctx);
+ cmd->command = cpu_to_le32(VM_CloseAll);
+ cmd->cid = cpu_to_le32(0xfffffffe);
+
+ status = aac_fib_send(ContainerCommand,
+ fibctx,
+ sizeof(struct aac_close),
+ FsaNormal,
+ -2 /* Timeout silently */, 1,
+ NULL, NULL);
+
+ if (status >= 0)
+ aac_fib_complete(fibctx);
+ /* FIB should be freed only after getting the response from the F/W */
+ if (status != -ERESTARTSYS)
+ aac_fib_free(fibctx);
+ if (aac_is_src(dev) &&
+ dev->msi_enabled)
+ aac_set_intx_mode(dev);
+ return status;
+}
+
+/**
+ * aac_comm_init - Initialise FSA data structures
+ * @dev: Adapter to initialise
+ *
+ * Initializes the data structures that are required for the FSA commuication
+ * interface to operate.
+ * Returns
+ * 1 - if we were able to init the commuication interface.
+ * 0 - If there were errors initing. This is a fatal error.
+ */
+
+static int aac_comm_init(struct aac_dev * dev)
+{
+ unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2;
+ unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES;
+ u32 *headers;
+ struct aac_entry * queues;
+ unsigned long size;
+ struct aac_queue_block * comm = dev->queues;
+ /*
+ * Now allocate and initialize the zone structures used as our
+ * pool of FIB context records. The size of the zone is based
+ * on the system memory size. We also initialize the mutex used
+ * to protect the zone.
+ */
+ spin_lock_init(&dev->fib_lock);
+
+ /*
+ * Allocate the physically contiguous space for the commuication
+ * queue headers.
+ */
+
+ size = hdrsize + queuesize;
+
+ if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT))
+ return -ENOMEM;
+
+ queues = (struct aac_entry *)(((ulong)headers) + hdrsize);
+
+ /* Adapter to Host normal priority Command queue */
+ comm->queue[HostNormCmdQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES);
+ queues += HOST_NORM_CMD_ENTRIES;
+ headers += 2;
+
+ /* Adapter to Host high priority command queue */
+ comm->queue[HostHighCmdQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES);
+
+ queues += HOST_HIGH_CMD_ENTRIES;
+ headers +=2;
+
+ /* Host to adapter normal priority command queue */
+ comm->queue[AdapNormCmdQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES);
+
+ queues += ADAP_NORM_CMD_ENTRIES;
+ headers += 2;
+
+ /* host to adapter high priority command queue */
+ comm->queue[AdapHighCmdQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES);
+
+ queues += ADAP_HIGH_CMD_ENTRIES;
+ headers += 2;
+
+ /* adapter to host normal priority response queue */
+ comm->queue[HostNormRespQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES);
+ queues += HOST_NORM_RESP_ENTRIES;
+ headers += 2;
+
+ /* adapter to host high priority response queue */
+ comm->queue[HostHighRespQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES);
+
+ queues += HOST_HIGH_RESP_ENTRIES;
+ headers += 2;
+
+ /* host to adapter normal priority response queue */
+ comm->queue[AdapNormRespQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES);
+
+ queues += ADAP_NORM_RESP_ENTRIES;
+ headers += 2;
+
+ /* host to adapter high priority response queue */
+ comm->queue[AdapHighRespQueue].base = queues;
+ aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES);
+
+ comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock;
+ comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock;
+ comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock;
+ comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock;
+
+ return 0;
+}
+
+void aac_define_int_mode(struct aac_dev *dev)
+{
+ int i, msi_count, min_msix;
+
+ msi_count = i = 0;
+ /* max. vectors from GET_COMM_PREFERRED_SETTINGS */
+ if (dev->max_msix == 0 ||
+ dev->pdev->device == PMC_DEVICE_S6 ||
+ dev->sync_mode) {
+ dev->max_msix = 1;
+ dev->vector_cap =
+ dev->scsi_host_ptr->can_queue +
+ AAC_NUM_MGT_FIB;
+ return;
+ }
+
+ /* Don't bother allocating more MSI-X vectors than cpus */
+ msi_count = min(dev->max_msix,
+ (unsigned int)num_online_cpus());
+
+ dev->max_msix = msi_count;
+
+ if (msi_count > AAC_MAX_MSIX)
+ msi_count = AAC_MAX_MSIX;
+
+ if (msi_count > 1 &&
+ pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) {
+ min_msix = 2;
+ i = pci_alloc_irq_vectors(dev->pdev,
+ min_msix, msi_count,
+ PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
+ if (i > 0) {
+ dev->msi_enabled = 1;
+ msi_count = i;
+ } else {
+ dev->msi_enabled = 0;
+ dev_err(&dev->pdev->dev,
+ "MSIX not supported!! Will try INTX 0x%x.\n", i);
+ }
+ }
+
+ if (!dev->msi_enabled)
+ dev->max_msix = msi_count = 1;
+ else {
+ if (dev->max_msix > msi_count)
+ dev->max_msix = msi_count;
+ }
+ if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && dev->sa_firmware)
+ dev->vector_cap = dev->scsi_host_ptr->can_queue +
+ AAC_NUM_MGT_FIB;
+ else
+ dev->vector_cap = (dev->scsi_host_ptr->can_queue +
+ AAC_NUM_MGT_FIB) / msi_count;
+
+}
+struct aac_dev *aac_init_adapter(struct aac_dev *dev)
+{
+ u32 status[5];
+ struct Scsi_Host * host = dev->scsi_host_ptr;
+ extern int aac_sync_mode;
+
+ /*
+ * Check the preferred comm settings, defaults from template.
+ */
+ dev->management_fib_count = 0;
+ spin_lock_init(&dev->manage_lock);
+ spin_lock_init(&dev->sync_lock);
+ spin_lock_init(&dev->iq_lock);
+ dev->max_fib_size = sizeof(struct hw_fib);
+ dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size
+ - sizeof(struct aac_fibhdr)
+ - sizeof(struct aac_write) + sizeof(struct sgentry))
+ / sizeof(struct sgentry);
+ dev->comm_interface = AAC_COMM_PRODUCER;
+ dev->raw_io_interface = dev->raw_io_64 = 0;
+
+
+ /*
+ * Enable INTX mode, if not done already Enabled
+ */
+ if (aac_is_msix_mode(dev)) {
+ aac_change_to_intx(dev);
+ dev_info(&dev->pdev->dev, "Changed firmware to INTX mode");
+ }
+
+ if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
+ 0, 0, 0, 0, 0, 0,
+ status+0, status+1, status+2, status+3, status+4)) &&
+ (status[0] == 0x00000001)) {
+ dev->doorbell_mask = status[3];
+ if (status[1] & AAC_OPT_NEW_COMM_64)
+ dev->raw_io_64 = 1;
+ dev->sync_mode = aac_sync_mode;
+ if (dev->a_ops.adapter_comm &&
+ (status[1] & AAC_OPT_NEW_COMM)) {
+ dev->comm_interface = AAC_COMM_MESSAGE;
+ dev->raw_io_interface = 1;
+ if ((status[1] & AAC_OPT_NEW_COMM_TYPE1)) {
+ /* driver supports TYPE1 (Tupelo) */
+ dev->comm_interface = AAC_COMM_MESSAGE_TYPE1;
+ } else if (status[1] & AAC_OPT_NEW_COMM_TYPE2) {
+ /* driver supports TYPE2 (Denali, Yosemite) */
+ dev->comm_interface = AAC_COMM_MESSAGE_TYPE2;
+ } else if (status[1] & AAC_OPT_NEW_COMM_TYPE3) {
+ /* driver supports TYPE3 (Yosemite, Thor) */
+ dev->comm_interface = AAC_COMM_MESSAGE_TYPE3;
+ } else if (status[1] & AAC_OPT_NEW_COMM_TYPE4) {
+ /* not supported TYPE - switch to sync. mode */
+ dev->comm_interface = AAC_COMM_MESSAGE_TYPE2;
+ dev->sync_mode = 1;
+ }
+ }
+ if ((status[1] & le32_to_cpu(AAC_OPT_EXTENDED)) &&
+ (status[4] & le32_to_cpu(AAC_EXTOPT_SA_FIRMWARE)))
+ dev->sa_firmware = 1;
+ else
+ dev->sa_firmware = 0;
+
+ if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
+ (status[2] > dev->base_size)) {
+ aac_adapter_ioremap(dev, 0);
+ dev->base_size = status[2];
+ if (aac_adapter_ioremap(dev, status[2])) {
+ /* remap failed, go back ... */
+ dev->comm_interface = AAC_COMM_PRODUCER;
+ if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) {
+ printk(KERN_WARNING
+ "aacraid: unable to map adapter.\n");
+ return NULL;
+ }
+ }
+ }
+ }
+ dev->max_msix = 0;
+ dev->msi_enabled = 0;
+ dev->adapter_shutdown = 0;
+ if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS,
+ 0, 0, 0, 0, 0, 0,
+ status+0, status+1, status+2, status+3, status+4))
+ && (status[0] == 0x00000001)) {
+ /*
+ * status[1] >> 16 maximum command size in KB
+ * status[1] & 0xFFFF maximum FIB size
+ * status[2] >> 16 maximum SG elements to driver
+ * status[2] & 0xFFFF maximum SG elements from driver
+ * status[3] & 0xFFFF maximum number FIBs outstanding
+ */
+ host->max_sectors = (status[1] >> 16) << 1;
+ /* Multiple of 32 for PMC */
+ dev->max_fib_size = status[1] & 0xFFE0;
+ host->sg_tablesize = status[2] >> 16;
+ dev->sg_tablesize = status[2] & 0xFFFF;
+ if (aac_is_src(dev)) {
+ if (host->can_queue > (status[3] >> 16) -
+ AAC_NUM_MGT_FIB)
+ host->can_queue = (status[3] >> 16) -
+ AAC_NUM_MGT_FIB;
+ } else if (host->can_queue > (status[3] & 0xFFFF) -
+ AAC_NUM_MGT_FIB)
+ host->can_queue = (status[3] & 0xFFFF) -
+ AAC_NUM_MGT_FIB;
+
+ dev->max_num_aif = status[4] & 0xFFFF;
+ }
+ if (numacb > 0) {
+ if (numacb < host->can_queue)
+ host->can_queue = numacb;
+ else
+ pr_warn("numacb=%d ignored\n", numacb);
+ }
+
+ if (aac_is_src(dev))
+ aac_define_int_mode(dev);
+ /*
+ * Ok now init the communication subsystem
+ */
+
+ dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL);
+ if (dev->queues == NULL) {
+ printk(KERN_ERR "Error could not allocate comm region.\n");
+ return NULL;
+ }
+
+ if (aac_comm_init(dev)<0){
+ kfree(dev->queues);
+ return NULL;
+ }
+ /*
+ * Initialize the list of fibs
+ */
+ if (aac_fib_setup(dev) < 0) {
+ kfree(dev->queues);
+ return NULL;
+ }
+
+ INIT_LIST_HEAD(&dev->fib_list);
+ INIT_LIST_HEAD(&dev->sync_fib_list);
+
+ return dev;
+}
+