[PATCH] I2O: SPARC fixes

Fix lot of BE <-> LE bugs which prevent it from working on SPARC.

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

5 files changed, 111 insertions, 101 deletions

diff --git a/drivers/message/i2o/Kconfig b/drivers/message/i2o/Kconfig
index 43a942a29c2e..fef677103880 100644
--- a/drivers/message/i2o/Kconfig
+++ b/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
diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c
index 002ae0ed8966..1db26215937f 100644
--- a/drivers/message/i2o/device.c
+++ b/drivers/message/i2o/device.c
@@ -341,56 +341,83 @@ int i2o_device_parse_lct(struct i2o_controller *c)
 {
         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_controller *c)
                 }
 
                 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 *i2o_dev, int cmd, void *oplist,
                    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 *i2o_dev, int cmd, void *oplist,
         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 *i2o_dev, int cmd, void *oplist,
         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 *i2o_dev, int cmd, void *oplist,
 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;
 }
 
 /*
diff --git a/drivers/message/i2o/exec-osm.c b/drivers/message/i2o/exec-osm.c
index 71a09332e7c0..d24548f4c033 100644
--- a/drivers/message/i2o/exec-osm.c
+++ b/drivers/message/i2o/exec-osm.c
@@ -77,7 +77,7 @@ static struct i2o_exec_wait *i2o_exec_wait_alloc(void)
 
         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(struct device *d,
         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 device *d,
         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 i2o_controller *c)
         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 i2o_controller *c, u32 change_ind)
 
         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);
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index 2bd15c70773b..ed2df54bf464 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -1050,8 +1050,8 @@ static int i2o_block_probe(struct device *dev)
         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 *dev)
          *      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);
 
diff --git a/drivers/message/i2o/i2o_scsi.c b/drivers/message/i2o/i2o_scsi.c
index 7a784fd60804..24061dfd46e4 100644
--- a/drivers/message/i2o/i2o_scsi.c
+++ b/drivers/message/i2o/i2o_scsi.c
@@ -113,7 +113,7 @@ static struct i2o_scsi_host *i2o_scsi_host_alloc(struct i2o_controller *c)
 
         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_host_alloc(struct i2o_controller *c)
         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 *dev)
                         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 *dev)
                 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 *dev)
                 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 *dev)
                           "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;
 };