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path: root/drivers/scsi/aacraid/sa.c
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Diffstat (limited to 'drivers/scsi/aacraid/sa.c')
-rw-r--r--drivers/scsi/aacraid/sa.c135
1 files changed, 80 insertions, 55 deletions
diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c
index 0680249ab86..e66477c9824 100644
--- a/drivers/scsi/aacraid/sa.c
+++ b/drivers/scsi/aacraid/sa.c
@@ -1,11 +1,12 @@
/*
* Adaptec AAC series RAID controller driver
- * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com>
+ * (c) Copyright 2001 Red Hat Inc.
*
* based on the old aacraid driver that is..
* Adaptec aacraid device driver for Linux.
*
- * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com)
+ * Copyright (c) 2000-2010 Adaptec, Inc.
+ * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.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
@@ -31,22 +32,19 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
-#include <linux/sched.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/time.h>
#include <linux/interrupt.h>
-#include <asm/semaphore.h>
#include <scsi/scsi_host.h>
#include "aacraid.h"
-static irqreturn_t aac_sa_intr(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t aac_sa_intr(int irq, void *dev_id)
{
struct aac_dev *dev = dev_id;
unsigned short intstat, mask;
@@ -66,11 +64,11 @@ static irqreturn_t aac_sa_intr(int irq, void *dev_id, struct pt_regs *regs)
sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
sa_writew(dev, DoorbellReg_s, PrintfDone);
} else if (intstat & DOORBELL_1) { // dev -> Host Normal Command Ready
- aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
+ aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
} else if (intstat & DOORBELL_2) { // dev -> Host Normal Response Ready
- aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
+ aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
} else if (intstat & DOORBELL_3) { // dev -> Host Normal Command Not Full
sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
} else if (intstat & DOORBELL_4) { // dev -> Host Normal Response Not Full
@@ -82,6 +80,27 @@ static irqreturn_t aac_sa_intr(int irq, void *dev_id, struct pt_regs *regs)
}
/**
+ * aac_sa_disable_interrupt - disable interrupt
+ * @dev: Which adapter to enable.
+ */
+
+static void aac_sa_disable_interrupt (struct aac_dev *dev)
+{
+ sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
+}
+
+/**
+ * aac_sa_enable_interrupt - enable interrupt
+ * @dev: Which adapter to enable.
+ */
+
+static void aac_sa_enable_interrupt (struct aac_dev *dev)
+{
+ sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 |
+ DOORBELL_2 | DOORBELL_3 | DOORBELL_4));
+}
+
+/**
* aac_sa_notify_adapter - handle adapter notification
* @dev: Adapter that notification is for
* @event: Event to notidy
@@ -179,8 +198,7 @@ static int sa_sync_cmd(struct aac_dev *dev, u32 command,
ok = 1;
break;
}
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
+ msleep(1);
}
if (ok != 1)
@@ -214,9 +232,8 @@ static int sa_sync_cmd(struct aac_dev *dev, u32 command,
static void aac_sa_interrupt_adapter (struct aac_dev *dev)
{
- u32 ret;
sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
- &ret, NULL, NULL, NULL, NULL);
+ NULL, NULL, NULL, NULL, NULL);
}
/**
@@ -228,29 +245,21 @@ static void aac_sa_interrupt_adapter (struct aac_dev *dev)
static void aac_sa_start_adapter(struct aac_dev *dev)
{
- u32 ret;
struct aac_init *init;
/*
* Fill in the remaining pieces of the init.
*/
init = dev->init;
init->HostElapsedSeconds = cpu_to_le32(get_seconds());
-
- /*
- * Tell the adapter we are back and up and running so it will scan its command
- * queues and enable our interrupts
- */
- dev->irq_mask = (PrintfReady | DOORBELL_1 | DOORBELL_2 | DOORBELL_3 | DOORBELL_4);
- /*
- * First clear out all interrupts. Then enable the one's that
- * we can handle.
- */
- sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
- sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 | DOORBELL_2 | DOORBELL_3 | DOORBELL_4));
/* We can only use a 32 bit address here */
sa_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS,
(u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0,
- &ret, NULL, NULL, NULL, NULL);
+ NULL, NULL, NULL, NULL, NULL);
+}
+
+static int aac_sa_restart_adapter(struct aac_dev *dev, int bled)
+{
+ return -EINVAL;
}
/**
@@ -286,6 +295,21 @@ static int aac_sa_check_health(struct aac_dev *dev)
}
/**
+ * aac_sa_ioremap
+ * @size: mapping resize request
+ *
+ */
+static int aac_sa_ioremap(struct aac_dev * dev, u32 size)
+{
+ if (!size) {
+ iounmap(dev->regs.sa);
+ return 0;
+ }
+ dev->base = dev->regs.sa = ioremap(dev->base_start, size);
+ return (dev->base == NULL) ? -1 : 0;
+}
+
+/**
* aac_sa_init - initialize an ARM based AAC card
* @dev: device to configure
*
@@ -304,15 +328,11 @@ int aac_sa_init(struct aac_dev *dev)
instance = dev->id;
name = dev->name;
- /*
- * Map in the registers from the adapter.
- */
-
- if((dev->regs.sa = ioremap((unsigned long)dev->scsi_host_ptr->base, 8192))==NULL)
- {
- printk(KERN_WARNING "aacraid: unable to map ARM.\n" );
+ if (aac_sa_ioremap(dev, dev->base_size)) {
+ printk(KERN_WARNING "%s: unable to map adapter.\n", name);
goto error_iounmap;
}
+
/*
* Check to see if the board failed any self tests.
*/
@@ -332,19 +352,13 @@ int aac_sa_init(struct aac_dev *dev)
* Wait for the adapter to be up and running. Wait up to 3 minutes.
*/
while (!(sa_readl(dev, Mailbox7) & KERNEL_UP_AND_RUNNING)) {
- if (time_after(jiffies, start+180*HZ)) {
+ if (time_after(jiffies, start+startup_timeout*HZ)) {
status = sa_readl(dev, Mailbox7);
printk(KERN_WARNING "%s%d: adapter kernel failed to start, init status = %lx.\n",
name, instance, status);
goto error_iounmap;
}
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- }
-
- if (request_irq(dev->scsi_host_ptr->irq, aac_sa_intr, SA_SHIRQ|SA_INTERRUPT, "aacraid", (void *)dev ) < 0) {
- printk(KERN_WARNING "%s%d: Interrupt unavailable.\n", name, instance);
- goto error_iounmap;
+ msleep(1);
}
/*
@@ -352,22 +366,37 @@ int aac_sa_init(struct aac_dev *dev)
*/
dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
+ dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
+ dev->a_ops.adapter_enable_int = aac_sa_enable_interrupt;
dev->a_ops.adapter_notify = aac_sa_notify_adapter;
dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
dev->a_ops.adapter_check_health = aac_sa_check_health;
+ dev->a_ops.adapter_restart = aac_sa_restart_adapter;
+ dev->a_ops.adapter_intr = aac_sa_intr;
+ dev->a_ops.adapter_deliver = aac_rx_deliver_producer;
+ dev->a_ops.adapter_ioremap = aac_sa_ioremap;
+ /*
+ * First clear out all interrupts. Then enable the one's that
+ * we can handle.
+ */
+ aac_adapter_disable_int(dev);
+ aac_adapter_enable_int(dev);
if(aac_init_adapter(dev) == NULL)
goto error_irq;
-
- /*
- * Start any kernel threads needed
- */
- dev->thread_pid = kernel_thread((int (*)(void *))aac_command_thread, dev, 0);
- if (dev->thread_pid < 0) {
- printk(KERN_ERR "aacraid: Unable to create command thread.\n");
- goto error_kfree;
+ dev->sync_mode = 0; /* sync. mode not supported */
+ if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr,
+ IRQF_SHARED, "aacraid", (void *)dev) < 0) {
+ printk(KERN_WARNING "%s%d: Interrupt unavailable.\n",
+ name, instance);
+ goto error_iounmap;
}
+ dev->dbg_base = dev->base_start;
+ dev->dbg_base_mapped = dev->base;
+ dev->dbg_size = dev->base_size;
+
+ aac_adapter_enable_int(dev);
/*
* Tell the adapter that all is configure, and it can start
@@ -376,15 +405,11 @@ int aac_sa_init(struct aac_dev *dev)
aac_sa_start_adapter(dev);
return 0;
-
-error_kfree:
- kfree(dev->queues);
-
error_irq:
- free_irq(dev->scsi_host_ptr->irq, (void *)dev);
+ aac_sa_disable_interrupt(dev);
+ free_irq(dev->pdev->irq, (void *)dev);
error_iounmap:
- iounmap(dev->regs.sa);
return -1;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 06:09:17 +0000