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path: root/drivers/message/i2o/iop.c
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Diffstat (limited to 'drivers/message/i2o/iop.c')
-rw-r--r--drivers/message/i2o/iop.c128
1 files changed, 68 insertions, 60 deletions
diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
index 40312053b38..c32022bc2a2 100644
--- a/drivers/message/i2o/iop.c
+++ b/drivers/message/i2o/iop.c
@@ -28,8 +28,10 @@
#include <linux/module.h>
#include <linux/i2o.h>
#include <linux/delay.h>
+#include "core.h"
-#define OSM_VERSION "$Rev$"
+#define OSM_NAME "i2o"
+#define OSM_VERSION "1.288"
#define OSM_DESCRIPTION "I2O subsystem"
/* global I2O controller list */
@@ -43,20 +45,6 @@ static struct i2o_dma i2o_systab;
static int i2o_hrt_get(struct i2o_controller *c);
-/* Module internal functions from other sources */
-extern struct i2o_driver i2o_exec_driver;
-extern int i2o_exec_lct_get(struct i2o_controller *);
-extern void i2o_device_remove(struct i2o_device *);
-
-extern int __init i2o_driver_init(void);
-extern void __exit i2o_driver_exit(void);
-extern int __init i2o_exec_init(void);
-extern void __exit i2o_exec_exit(void);
-extern int __init i2o_pci_init(void);
-extern void __exit i2o_pci_exit(void);
-extern int i2o_device_init(void);
-extern void i2o_device_exit(void);
-
/**
* i2o_msg_nop - Returns a message which is not used
* @c: I2O controller from which the message was created
@@ -92,16 +80,16 @@ void i2o_msg_nop(struct i2o_controller *c, u32 m)
* address from the read port (see the i2o spec). If no message is
* available returns I2O_QUEUE_EMPTY and msg is leaved untouched.
*/
-u32 i2o_msg_get_wait(struct i2o_controller *c, struct i2o_message __iomem **msg,
- int wait)
+u32 i2o_msg_get_wait(struct i2o_controller *c,
+ struct i2o_message __iomem ** msg, int wait)
{
unsigned long timeout = jiffies + wait * HZ;
u32 m;
while ((m = i2o_msg_get(c, msg)) == I2O_QUEUE_EMPTY) {
if (time_after(jiffies, timeout)) {
- pr_debug("%s: Timeout waiting for message frame.\n",
- c->name);
+ osm_debug("%s: Timeout waiting for message frame.\n",
+ c->name);
return I2O_QUEUE_EMPTY;
}
set_current_state(TASK_UNINTERRUPTIBLE);
@@ -466,7 +454,7 @@ static int i2o_iop_clear(struct i2o_controller *c)
*/
static int i2o_iop_init_outbound_queue(struct i2o_controller *c)
{
- u8 *status = c->status.virt;
+ volatile u8 *status = c->status.virt;
u32 m;
struct i2o_message __iomem *msg;
ulong timeout;
@@ -474,21 +462,20 @@ static int i2o_iop_init_outbound_queue(struct i2o_controller *c)
osm_debug("%s: Initializing Outbound Queue...\n", c->name);
- memset(status, 0, 4);
+ memset(c->status.virt, 0, 4);
m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
if (m == I2O_QUEUE_EMPTY)
return -ETIMEDOUT;
- writel(EIGHT_WORD_MSG_SIZE | TRL_OFFSET_6, &msg->u.head[0]);
+ writel(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6, &msg->u.head[0]);
writel(I2O_CMD_OUTBOUND_INIT << 24 | HOST_TID << 12 | ADAPTER_TID,
&msg->u.head[1]);
writel(i2o_exec_driver.context, &msg->u.s.icntxt);
- writel(0x0106, &msg->u.s.tcntxt); /* FIXME: why 0x0106, maybe in
- Spec? */
+ writel(0x00000000, &msg->u.s.tcntxt);
writel(PAGE_SIZE, &msg->body[0]);
/* Outbound msg frame size in words and Initcode */
- writel(MSG_FRAME_SIZE << 16 | 0x80, &msg->body[1]);
+ writel(I2O_OUTBOUND_MSG_FRAME_SIZE << 16 | 0x80, &msg->body[1]);
writel(0xd0000004, &msg->body[2]);
writel(i2o_dma_low(c->status.phys), &msg->body[3]);
writel(i2o_dma_high(c->status.phys), &msg->body[4]);
@@ -503,17 +490,15 @@ static int i2o_iop_init_outbound_queue(struct i2o_controller *c)
}
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
-
- rmb();
}
m = c->out_queue.phys;
/* Post frames */
- for (i = 0; i < NMBR_MSG_FRAMES; i++) {
+ for (i = 0; i < I2O_MAX_OUTBOUND_MSG_FRAMES; i++) {
i2o_flush_reply(c, m);
udelay(1); /* Promise */
- m += MSG_FRAME_SIZE * 4;
+ m += I2O_OUTBOUND_MSG_FRAME_SIZE * sizeof(u32);
}
return 0;
@@ -530,20 +515,20 @@ static int i2o_iop_init_outbound_queue(struct i2o_controller *c)
*/
static int i2o_iop_reset(struct i2o_controller *c)
{
- u8 *status = c->status.virt;
+ volatile u8 *status = c->status.virt;
struct i2o_message __iomem *msg;
u32 m;
unsigned long timeout;
i2o_status_block *sb = c->status_block.virt;
int rc = 0;
- pr_debug("%s: Resetting controller\n", c->name);
+ osm_debug("%s: Resetting controller\n", c->name);
m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
if (m == I2O_QUEUE_EMPTY)
return -ETIMEDOUT;
- memset(status, 0, 8);
+ memset(c->status_block.virt, 0, 8);
/* Quiesce all IOPs first */
i2o_iop_quiesce_all();
@@ -568,8 +553,6 @@ static int i2o_iop_reset(struct i2o_controller *c)
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
-
- rmb();
}
switch (*status) {
@@ -984,11 +967,11 @@ int i2o_status_get(struct i2o_controller *c)
{
struct i2o_message __iomem *msg;
u32 m;
- u8 *status_block;
+ volatile u8 *status_block;
unsigned long timeout;
status_block = (u8 *) c->status_block.virt;
- memset(status_block, 0, sizeof(i2o_status_block));
+ memset(c->status_block.virt, 0, sizeof(i2o_status_block));
m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
if (m == I2O_QUEUE_EMPTY)
@@ -1017,8 +1000,6 @@ int i2o_status_get(struct i2o_controller *c)
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
-
- rmb();
}
#ifdef DEBUG
@@ -1107,6 +1088,11 @@ static void i2o_iop_release(struct device *dev)
i2o_iop_free(c);
};
+/* I2O controller class */
+static struct class i2o_controller_class = {
+ .name = "i2o_controller",
+};
+
/**
* i2o_iop_alloc - Allocate and initialize a i2o_controller struct
*
@@ -1136,8 +1122,14 @@ struct i2o_controller *i2o_iop_alloc(void)
sprintf(c->name, "iop%d", c->unit);
device_initialize(&c->device);
+ class_device_initialize(&c->classdev);
+
c->device.release = &i2o_iop_release;
+ c->classdev.class = &i2o_controller_class;
+ c->classdev.dev = &c->device;
+
snprintf(c->device.bus_id, BUS_ID_SIZE, "iop%d", c->unit);
+ snprintf(c->classdev.class_id, BUS_ID_SIZE, "iop%d", c->unit);
#if BITS_PER_LONG == 64
spin_lock_init(&c->context_list_lock);
@@ -1161,45 +1153,55 @@ int i2o_iop_add(struct i2o_controller *c)
{
int rc;
- if((rc = device_add(&c->device))) {
- printk(KERN_ERR "%s: could not register controller\n", c->name);
+ if ((rc = device_add(&c->device))) {
+ osm_err("%s: could not add controller\n", c->name);
goto iop_reset;
}
- printk(KERN_INFO "%s: Activating I2O controller...\n", c->name);
- printk(KERN_INFO "%s: This may take a few minutes if there are many "
- "devices\n", c->name);
+ if ((rc = class_device_add(&c->classdev))) {
+ osm_err("%s: could not add controller class\n", c->name);
+ goto device_del;
+ }
+
+ osm_info("%s: Activating I2O controller...\n", c->name);
+ osm_info("%s: This may take a few minutes if there are many devices\n",
+ c->name);
if ((rc = i2o_iop_activate(c))) {
- printk(KERN_ERR "%s: could not activate controller\n",
- c->name);
- goto iop_reset;
+ osm_err("%s: could not activate controller\n", c->name);
+ goto class_del;
}
- pr_debug("%s: building sys table...\n", c->name);
+ osm_debug("%s: building sys table...\n", c->name);
if ((rc = i2o_systab_build()))
- goto iop_reset;
+ goto class_del;
- pr_debug("%s: online controller...\n", c->name);
+ osm_debug("%s: online controller...\n", c->name);
if ((rc = i2o_iop_online(c)))
- goto iop_reset;
+ goto class_del;
- pr_debug("%s: getting LCT...\n", c->name);
+ osm_debug("%s: getting LCT...\n", c->name);
if ((rc = i2o_exec_lct_get(c)))
- goto iop_reset;
+ goto class_del;
list_add(&c->list, &i2o_controllers);
i2o_driver_notify_controller_add_all(c);
- printk(KERN_INFO "%s: Controller added\n", c->name);
+ osm_info("%s: Controller added\n", c->name);
return 0;
-iop_reset:
+ class_del:
+ class_device_del(&c->classdev);
+
+ device_del:
+ device_del(&c->device);
+
+ iop_reset:
i2o_iop_reset(c);
return rc;
@@ -1260,16 +1262,18 @@ static int __init i2o_iop_init(void)
if (rc)
goto exit;
- rc = i2o_driver_init();
- if (rc)
+ if ((rc = class_register(&i2o_controller_class))) {
+ osm_err("can't register class i2o_controller\n");
goto device_exit;
+ }
- rc = i2o_exec_init();
- if (rc)
+ if ((rc = i2o_driver_init()))
+ goto class_exit;
+
+ if ((rc = i2o_exec_init()))
goto driver_exit;
- rc = i2o_pci_init();
- if (rc < 0)
+ if ((rc = i2o_pci_init()))
goto exec_exit;
return 0;
@@ -1280,6 +1284,9 @@ static int __init i2o_iop_init(void)
driver_exit:
i2o_driver_exit();
+ class_exit:
+ class_unregister(&i2o_controller_class);
+
device_exit:
i2o_device_exit();
@@ -1297,6 +1304,7 @@ static void __exit i2o_iop_exit(void)
i2o_pci_exit();
i2o_exec_exit();
i2o_driver_exit();
+ class_unregister(&i2o_controller_class);
i2o_device_exit();
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-25 20:18:19 +0000