[PATCH 2/7] I2O: SPARC fixes

From: Markus Lidel
Date: Thu Dec 15 2005 - 19:29:27 EST

Next message: Markus Lidel: "[PATCH 3/7] I2O: Remove wrong I2O device class"
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Changes:
--------
- Fixed lot of BE <-> LE bugs which prevent it from working on SPARC.

Signed-off-by: Markus Lidel <Markus.Lidel@xxxxxxxxxxxxxxxxx> Index: linux-2.6/drivers/message/i2o/Kconfig
===================================================================
--- linux-2.6.orig/drivers/message/i2o/Kconfig
+++ linux-2.6/drivers/message/i2o/Kconfig
@@ -24,6 +24,18 @@ config I2O

If unsure, say N.

+config I2O_LCT_NOTIFY_ON_CHANGES
+ bool "Enable LCT notification"
+ depends on I2O
+ default y
+ ---help---
+ Only say N here if you have a I2O controller from SUN. The SUN
+ firmware doesn't support LCT notification on changes. If this option
+ is enabled on such a controller the driver will hang up in a endless
+ loop. On all other controllers say Y.
+
+ If unsure, say Y.
+
config I2O_EXT_ADAPTEC
bool "Enable Adaptec extensions"
depends on I2O
Index: linux-2.6/drivers/message/i2o/device.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/device.c
+++ linux-2.6/drivers/message/i2o/device.c
@@ -341,56 +341,83 @@ int i2o_device_parse_lct(struct i2o_cont
{
struct i2o_device *dev, *tmp;
i2o_lct *lct;
- int i;
- int max;
+ u32 *dlct = c->dlct.virt;
+ int max = 0, i = 0;
+ u16 table_size;
+ u32 buf;

down(&c->lct_lock);

kfree(c->lct);

- lct = c->dlct.virt;
+ buf = le32_to_cpu(*dlct++);
+ table_size = buf & 0xffff;

- c->lct = kmalloc(lct->table_size * 4, GFP_KERNEL);
- if (!c->lct) {
+ lct = c->lct = kmalloc(table_size * 4, GFP_KERNEL);
+ if (!lct) {
up(&c->lct_lock);
return -ENOMEM;
}

- if (lct->table_size * 4 > c->dlct.len) {
- memcpy(c->lct, c->dlct.virt, c->dlct.len);
- up(&c->lct_lock);
- return -EAGAIN;
- }
-
- memcpy(c->lct, c->dlct.virt, lct->table_size * 4);
+ lct->lct_ver = buf >> 28;
+ lct->boot_tid = buf >> 16 & 0xfff;
+ lct->table_size = table_size;
+ lct->change_ind = le32_to_cpu(*dlct++);
+ lct->iop_flags = le32_to_cpu(*dlct++);

- lct = c->lct;
-
- max = (lct->table_size - 3) / 9;
+ table_size -= 3;

pr_debug("%s: LCT has %d entries (LCT size: %d)\n", c->name, max,
lct->table_size);

- /* remove devices, which are not in the LCT anymore */
- list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ while (table_size > 0) {
+ i2o_lct_entry *entry = &lct->lct_entry[max];
int found = 0;

- for (i = 0; i < max; i++) {
- if (lct->lct_entry[i].tid == dev->lct_data.tid) {
+ buf = le32_to_cpu(*dlct++);
+ entry->entry_size = buf & 0xffff;
+ entry->tid = buf >> 16 & 0xfff;
+
+ entry->change_ind = le32_to_cpu(*dlct++);
+ entry->device_flags = le32_to_cpu(*dlct++);
+
+ buf = le32_to_cpu(*dlct++);
+ entry->class_id = buf & 0xfff;
+ entry->version = buf >> 12 & 0xf;
+ entry->vendor_id = buf >> 16;
+
+ entry->sub_class = le32_to_cpu(*dlct++);
+
+ buf = le32_to_cpu(*dlct++);
+ entry->user_tid = buf & 0xfff;
+ entry->parent_tid = buf >> 12 & 0xfff;
+ entry->bios_info = buf >> 24;
+
+ memcpy(&entry->identity_tag, dlct, 8);
+ dlct += 2;
+
+ entry->event_capabilities = le32_to_cpu(*dlct++);
+
+ /* add new devices, which are new in the LCT */
+ list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ if (entry->tid == dev->lct_data.tid) {
found = 1;
break;
}
}

if (!found)
- i2o_device_remove(dev);
+ i2o_device_add(c, entry);
+
+ table_size -= 9;
+ max++;
}

- /* add new devices, which are new in the LCT */
- for (i = 0; i < max; i++) {
+ /* remove devices, which are not in the LCT anymore */
+ list_for_each_entry_safe(dev, tmp, &c->devices, list) {
int found = 0;

- list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ for (i = 0; i < max; i++) {
if (lct->lct_entry[i].tid == dev->lct_data.tid) {
found = 1;
break;
@@ -398,8 +425,9 @@ int i2o_device_parse_lct(struct i2o_cont
}

if (!found)
- i2o_device_add(c, &lct->lct_entry[i]);
+ i2o_device_remove(dev);
}
+
up(&c->lct_lock);

return 0;
@@ -422,9 +450,6 @@ int i2o_parm_issue(struct i2o_device *i2
int oplen, void *reslist, int reslen)
{
struct i2o_message *msg;
- u32 *res32 = (u32 *) reslist;
- u32 *restmp = (u32 *) reslist;
- int len = 0;
int i = 0;
int rc;
struct i2o_dma res;
@@ -448,7 +473,6 @@ int i2o_parm_issue(struct i2o_device *i2
msg->body[i++] = cpu_to_le32(0x00000000);
msg->body[i++] = cpu_to_le32(0x4C000000 | oplen); /* OperationList */
memcpy(&msg->body[i], oplist, oplen);
-
i += (oplen / 4 + (oplen % 4 ? 1 : 0));
msg->body[i++] = cpu_to_le32(0xD0000000 | res.len); /* ResultList */
msg->body[i++] = cpu_to_le32(res.phys);
@@ -466,36 +490,7 @@ int i2o_parm_issue(struct i2o_device *i2
memcpy(reslist, res.virt, res.len);
i2o_dma_free(dev, &res);

- /* Query failed */
- if (rc)
- return rc;
- /*
- * Calculate number of bytes of Result LIST
- * We need to loop through each Result BLOCK and grab the length
- */
- restmp = res32 + 1;
- len = 1;
- for (i = 0; i < (res32[0] & 0X0000FFFF); i++) {
- if (restmp[0] & 0x00FF0000) { /* BlockStatus != SUCCESS */
- printk(KERN_WARNING
- "%s - Error:\n ErrorInfoSize = 0x%02x, "
- "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
- (cmd ==
- I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET" :
- "PARAMS_GET", res32[1] >> 24,
- (res32[1] >> 16) & 0xFF, res32[1] & 0xFFFF);
-
- /*
- * If this is the only request,than we return an error
- */
- if ((res32[0] & 0x0000FFFF) == 1) {
- return -((res32[1] >> 16) & 0xFF); /* -BlockStatus */
- }
- }
- len += restmp[0] & 0x0000FFFF; /* Length of res BLOCK */
- restmp += restmp[0] & 0x0000FFFF; /* Skip to next BLOCK */
- }
- return (len << 2); /* bytes used by result list */
+ return rc;
}

/*
@@ -504,28 +499,25 @@ int i2o_parm_issue(struct i2o_device *i2
int i2o_parm_field_get(struct i2o_device *i2o_dev, int group, int field,
void *buf, int buflen)
{
- u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
+ u32 opblk[] = { cpu_to_le32(0x00000001),
+ cpu_to_le32((u16) group << 16 | I2O_PARAMS_FIELD_GET),
+ cpu_to_le32((s16) field << 16 | 0x00000001)
+ };
u8 *resblk; /* 8 bytes for header */
- int size;
-
- if (field == -1) /* whole group */
- opblk[4] = -1;
+ int rc;

resblk = kmalloc(buflen + 8, GFP_KERNEL | GFP_ATOMIC);
if (!resblk)
return -ENOMEM;

- size = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
- sizeof(opblk), resblk, buflen + 8);
+ rc = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
+ sizeof(opblk), resblk, buflen + 8);

memcpy(buf, resblk + 8, buflen); /* cut off header */

kfree(resblk);

- if (size > buflen)
- return buflen;
-
- return size;
+ return rc;
}

/*
Index: linux-2.6/drivers/message/i2o/exec-osm.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/exec-osm.c
+++ linux-2.6/drivers/message/i2o/exec-osm.c
@@ -77,7 +77,7 @@ static struct i2o_exec_wait *i2o_exec_wa

wait = kmalloc(sizeof(*wait), GFP_KERNEL);
if (!wait)
- return ERR_PTR(-ENOMEM);
+ return NULL;

memset(wait, 0, sizeof(*wait));

@@ -271,8 +271,8 @@ static ssize_t i2o_exec_show_vendor_id(s
struct i2o_device *dev = to_i2o_device(d);
u16 id;

- if (i2o_parm_field_get(dev, 0x0000, 0, &id, 2)) {
- sprintf(buf, "0x%04x", id);
+ if (!i2o_parm_field_get(dev, 0x0000, 0, &id, 2)) {
+ sprintf(buf, "0x%04x", le16_to_cpu(id));
return strlen(buf) + 1;
}

@@ -293,8 +293,8 @@ static ssize_t i2o_exec_show_product_id(
struct i2o_device *dev = to_i2o_device(d);
u16 id;

- if (i2o_parm_field_get(dev, 0x0000, 1, &id, 2)) {
- sprintf(buf, "0x%04x", id);
+ if (!i2o_parm_field_get(dev, 0x0000, 1, &id, 2)) {
+ sprintf(buf, "0x%04x", le16_to_cpu(id));
return strlen(buf) + 1;
}

@@ -364,7 +364,9 @@ static void i2o_exec_lct_modified(struct
if (i2o_device_parse_lct(c) != -EAGAIN)
change_ind = c->lct->change_ind + 1;

+#ifdef CONFIG_I2O_LCT_NOTIFY_ON_CHANGES
i2o_exec_lct_notify(c, change_ind);
+#endif
};

/**
@@ -512,7 +514,8 @@ static int i2o_exec_lct_notify(struct i2

dev = &c->pdev->dev;

- if (i2o_dma_realloc(dev, &c->dlct, sb->expected_lct_size, GFP_KERNEL))
+ if (i2o_dma_realloc
+ (dev, &c->dlct, le32_to_cpu(sb->expected_lct_size), GFP_KERNEL))
return -ENOMEM;

msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
Index: linux-2.6/drivers/message/i2o/i2o_block.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/i2o_block.c
+++ linux-2.6/drivers/message/i2o/i2o_block.c
@@ -1050,8 +1050,8 @@ static int i2o_block_probe(struct device
int rc;
u64 size;
u32 blocksize;
- u32 flags, status;
u16 body_size = 4;
+ u16 power;
unsigned short max_sectors;

#ifdef CONFIG_I2O_EXT_ADAPTEC
@@ -1109,22 +1109,20 @@ static int i2o_block_probe(struct device
* Ask for the current media data. If that isn't supported
* then we ask for the device capacity data
*/
- if (i2o_parm_field_get(i2o_dev, 0x0004, 1, &blocksize, 4) ||
- i2o_parm_field_get(i2o_dev, 0x0000, 3, &blocksize, 4)) {
- blk_queue_hardsect_size(queue, blocksize);
+ if (!i2o_parm_field_get(i2o_dev, 0x0004, 1, &blocksize, 4) ||
+ !i2o_parm_field_get(i2o_dev, 0x0000, 3, &blocksize, 4)) {
+ blk_queue_hardsect_size(queue, le32_to_cpu(blocksize));
} else
osm_warn("unable to get blocksize of %s\n", gd->disk_name);

- if (i2o_parm_field_get(i2o_dev, 0x0004, 0, &size, 8) ||
- i2o_parm_field_get(i2o_dev, 0x0000, 4, &size, 8)) {
- set_capacity(gd, size >> KERNEL_SECTOR_SHIFT);
+ if (!i2o_parm_field_get(i2o_dev, 0x0004, 0, &size, 8) ||
+ !i2o_parm_field_get(i2o_dev, 0x0000, 4, &size, 8)) {
+ set_capacity(gd, le64_to_cpu(size) >> KERNEL_SECTOR_SHIFT);
} else
osm_warn("could not get size of %s\n", gd->disk_name);

- if (!i2o_parm_field_get(i2o_dev, 0x0000, 2, &i2o_blk_dev->power, 2))
- i2o_blk_dev->power = 0;
- i2o_parm_field_get(i2o_dev, 0x0000, 5, &flags, 4);
- i2o_parm_field_get(i2o_dev, 0x0000, 6, &status, 4);
+ if (!i2o_parm_field_get(i2o_dev, 0x0000, 2, &power, 2))
+ i2o_blk_dev->power = power;

i2o_event_register(i2o_dev, &i2o_block_driver, 0, 0xffffffff);

Index: linux-2.6/drivers/message/i2o/i2o_scsi.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/i2o_scsi.c
+++ linux-2.6/drivers/message/i2o/i2o_scsi.c
@@ -113,7 +113,7 @@ static struct i2o_scsi_host *i2o_scsi_ho

list_for_each_entry(i2o_dev, &c->devices, list)
if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
- if (i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
+ if (!i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
&& (type == 0x01)) /* SCSI bus */
max_channel++;
}
@@ -146,7 +146,7 @@ static struct i2o_scsi_host *i2o_scsi_ho
i = 0;
list_for_each_entry(i2o_dev, &c->devices, list)
if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
- if (i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
+ if (!i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
&& (type == 0x01)) /* only SCSI bus */
i2o_shost->channel[i++] = i2o_dev;

@@ -238,13 +238,15 @@ static int i2o_scsi_probe(struct device
u8 type;
struct i2o_device *d = i2o_shost->channel[0];

- if (i2o_parm_field_get(d, 0x0000, 0, &type, 1)
+ if (!i2o_parm_field_get(d, 0x0000, 0, &type, 1)
&& (type == 0x01)) /* SCSI bus */
- if (i2o_parm_field_get(d, 0x0200, 4, &id, 4)) {
+ if (!i2o_parm_field_get(d, 0x0200, 4, &id, 4)) {
channel = 0;
if (i2o_dev->lct_data.class_id ==
I2O_CLASS_RANDOM_BLOCK_STORAGE)
- lun = i2o_shost->lun++;
+ lun =
+ cpu_to_le64(i2o_shost->
+ lun++);
else
lun = 0;
}
@@ -253,10 +255,10 @@ static int i2o_scsi_probe(struct device
break;

case I2O_CLASS_SCSI_PERIPHERAL:
- if (i2o_parm_field_get(i2o_dev, 0x0000, 3, &id, 4) < 0)
+ if (i2o_parm_field_get(i2o_dev, 0x0000, 3, &id, 4))
return -EFAULT;

- if (i2o_parm_field_get(i2o_dev, 0x0000, 4, &lun, 8) < 0)
+ if (i2o_parm_field_get(i2o_dev, 0x0000, 4, &lun, 8))
return -EFAULT;

parent = i2o_iop_find_device(c, i2o_dev->lct_data.parent_tid);
@@ -281,20 +283,22 @@ static int i2o_scsi_probe(struct device
return -EFAULT;
}

- if (id >= scsi_host->max_id) {
- osm_warn("SCSI device id (%d) >= max_id of I2O host (%d)", id,
- scsi_host->max_id);
+ if (le32_to_cpu(id) >= scsi_host->max_id) {
+ osm_warn("SCSI device id (%d) >= max_id of I2O host (%d)",
+ le32_to_cpu(id), scsi_host->max_id);
return -EFAULT;
}

- if (lun >= scsi_host->max_lun) {
- osm_warn("SCSI device id (%d) >= max_lun of I2O host (%d)",
- (unsigned int)lun, scsi_host->max_lun);
+ if (le64_to_cpu(lun) >= scsi_host->max_lun) {
+ osm_warn("SCSI device lun (%lu) >= max_lun of I2O host (%d)",
+ (long unsigned int)le64_to_cpu(lun),
+ scsi_host->max_lun);
return -EFAULT;
}

scsi_dev =
- __scsi_add_device(i2o_shost->scsi_host, channel, id, lun, i2o_dev);
+ __scsi_add_device(i2o_shost->scsi_host, channel, le32_to_cpu(id),
+ le64_to_cpu(lun), i2o_dev);

if (IS_ERR(scsi_dev)) {
osm_warn("can not add SCSI device %03x\n",
@@ -306,7 +310,8 @@ static int i2o_scsi_probe(struct device
"scsi");

osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %d\n",
- i2o_dev->lct_data.tid, channel, id, (unsigned int)lun);
+ i2o_dev->lct_data.tid, channel, le32_to_cpu(id),
+ (unsigned int)le64_to_cpu(lun));

return 0;
};

Next message: Markus Lidel: "[PATCH 3/7] I2O: Remove wrong I2O device class"
Previous message: Andi Kleen: "Re: [discuss] [patch 3/3] x86_64: Node local pda take 2 -- node local pda allocation"
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