#include <linux/moduleparam.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <linux/slab.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_devinfo.h>
unsigned compatible; /* for use with scsi_static_device_list entries */
};
+struct scsi_dev_info_list_table {
+ struct list_head node; /* our node for being on the master list */
+ struct list_head scsi_dev_info_list; /* head of dev info list */
+ const char *name; /* name of list for /proc (NULL for global) */
+ int key; /* unique numeric identifier */
+};
+
static const char spaces[] = " "; /* 16 of them */
static unsigned scsi_default_dev_flags;
{"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN | BLIST_INQUIRY_36},
- {"HITACHI", "DF400", "*", BLIST_SPARSELUN},
- {"HITACHI", "DF500", "*", BLIST_SPARSELUN},
- {"HITACHI", "DF600", "*", BLIST_SPARSELUN},
- {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
- {"HITACHI", "OPEN-E", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
+ {"HITACHI", "DF400", "*", BLIST_REPORTLUN2},
+ {"HITACHI", "DF500", "*", BLIST_REPORTLUN2},
+ {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
+ {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2},
{"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
{"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
{"HITACHI", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
{"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
{"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
{"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
+ {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
{"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
{"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
{"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
{ NULL, NULL, NULL, 0 },
};
+static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
+{
+ struct scsi_dev_info_list_table *devinfo_table;
+ int found = 0;
+
+ list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
+ if (devinfo_table->key == key) {
+ found = 1;
+ break;
+ }
+ if (!found)
+ return ERR_PTR(-EINVAL);
+
+ return devinfo_table;
+}
+
/*
* scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
* devinfo vendor and model strings.
static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
char *strflags, int flags)
{
+ return scsi_dev_info_list_add_keyed(compatible, vendor, model,
+ strflags, flags,
+ SCSI_DEVINFO_GLOBAL);
+}
+
+/**
+ * scsi_dev_info_list_add_keyed - add one dev_info list entry.
+ * @compatible: if true, null terminate short strings. Otherwise space pad.
+ * @vendor: vendor string
+ * @model: model (product) string
+ * @strflags: integer string
+ * @flags: if strflags NULL, use this flag value
+ * @key: specify list to use
+ *
+ * Description:
+ * Create and add one dev_info entry for @vendor, @model,
+ * @strflags or @flag in list specified by @key. If @compatible,
+ * add to the tail of the list, do not space pad, and set
+ * devinfo->compatible. The scsi_static_device_list entries are
+ * added with @compatible 1 and @clfags NULL.
+ *
+ * Returns: 0 OK, -error on failure.
+ **/
+int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
+ char *strflags, int flags, int key)
+{
struct scsi_dev_info_list *devinfo;
+ struct scsi_dev_info_list_table *devinfo_table =
+ scsi_devinfo_lookup_by_key(key);
+
+ if (IS_ERR(devinfo_table))
+ return PTR_ERR(devinfo_table);
devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
if (!devinfo) {
devinfo->compatible = compatible;
if (compatible)
- list_add_tail(&devinfo->dev_info_list, &scsi_dev_info_list);
+ list_add_tail(&devinfo->dev_info_list,
+ &devinfo_table->scsi_dev_info_list);
else
- list_add(&devinfo->dev_info_list, &scsi_dev_info_list);
+ list_add(&devinfo->dev_info_list,
+ &devinfo_table->scsi_dev_info_list);
return 0;
}
+EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
/**
* scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
* @model: model name
*
* Description:
- * Search the scsi_dev_info_list for an entry matching @vendor and
- * @model, if found, return the matching flags value, else return
- * the host or global default settings. Called during scan time.
+ * Search the global scsi_dev_info_list (specified by list zero)
+ * for an entry matching @vendor and @model, if found, return the
+ * matching flags value, else return the host or global default
+ * settings. Called during scan time.
**/
int scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model)
{
+ return scsi_get_device_flags_keyed(sdev, vendor, model,
+ SCSI_DEVINFO_GLOBAL);
+}
+
+
+/**
+ * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list
+ * @sdev: &scsi_device to get flags for
+ * @vendor: vendor name
+ * @model: model name
+ * @key: list to look up
+ *
+ * Description:
+ * Search the scsi_dev_info_list specified by @key for an entry
+ * matching @vendor and @model, if found, return the matching
+ * flags value, else return the host or global default settings.
+ * Called during scan time.
+ **/
+int scsi_get_device_flags_keyed(struct scsi_device *sdev,
+ const unsigned char *vendor,
+ const unsigned char *model,
+ int key)
+{
struct scsi_dev_info_list *devinfo;
- unsigned int bflags;
+ struct scsi_dev_info_list_table *devinfo_table;
+
+ devinfo_table = scsi_devinfo_lookup_by_key(key);
- bflags = sdev->sdev_bflags;
- if (!bflags)
- bflags = scsi_default_dev_flags;
+ if (IS_ERR(devinfo_table))
+ return PTR_ERR(devinfo_table);
- list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
+ list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
+ dev_info_list) {
if (devinfo->compatible) {
/*
* Behave like the older version of get_device_flags.
return devinfo->flags;
}
}
- return bflags;
+ /* nothing found, return nothing */
+ if (key != SCSI_DEVINFO_GLOBAL)
+ return 0;
+
+ /* except for the global list, where we have an exception */
+ if (sdev->sdev_bflags)
+ return sdev->sdev_bflags;
+
+ return scsi_default_dev_flags;
}
+EXPORT_SYMBOL(scsi_get_device_flags_keyed);
#ifdef CONFIG_SCSI_PROC_FS
+struct double_list {
+ struct list_head *top;
+ struct list_head *bottom;
+};
+
static int devinfo_seq_show(struct seq_file *m, void *v)
{
+ struct double_list *dl = v;
+ struct scsi_dev_info_list_table *devinfo_table =
+ list_entry(dl->top, struct scsi_dev_info_list_table, node);
struct scsi_dev_info_list *devinfo =
- list_entry(v, struct scsi_dev_info_list, dev_info_list);
+ list_entry(dl->bottom, struct scsi_dev_info_list,
+ dev_info_list);
+
+ if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
+ devinfo_table->name)
+ seq_printf(m, "[%s]:\n", devinfo_table->name);
seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
- devinfo->vendor, devinfo->model, devinfo->flags);
+ devinfo->vendor, devinfo->model, devinfo->flags);
return 0;
}
-static void * devinfo_seq_start(struct seq_file *m, loff_t *pos)
+static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
{
- return seq_list_start(&scsi_dev_info_list, *pos);
+ struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
+ loff_t pos = *ppos;
+
+ if (!dl)
+ return NULL;
+
+ list_for_each(dl->top, &scsi_dev_info_list) {
+ struct scsi_dev_info_list_table *devinfo_table =
+ list_entry(dl->top, struct scsi_dev_info_list_table,
+ node);
+ list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
+ if (pos-- == 0)
+ return dl;
+ }
+
+ kfree(dl);
+ return NULL;
}
-static void * devinfo_seq_next(struct seq_file *m, void *v, loff_t *pos)
+static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
{
- return seq_list_next(v, &scsi_dev_info_list, pos);
+ struct double_list *dl = v;
+ struct scsi_dev_info_list_table *devinfo_table =
+ list_entry(dl->top, struct scsi_dev_info_list_table, node);
+
+ ++*ppos;
+ dl->bottom = dl->bottom->next;
+ while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
+ dl->top = dl->top->next;
+ if (dl->top == &scsi_dev_info_list) {
+ kfree(dl);
+ return NULL;
+ }
+ devinfo_table = list_entry(dl->top,
+ struct scsi_dev_info_list_table,
+ node);
+ dl->bottom = devinfo_table->scsi_dev_info_list.next;
+ }
+
+ return dl;
}
static void devinfo_seq_stop(struct seq_file *m, void *v)
{
+ kfree(v);
}
static const struct seq_operations scsi_devinfo_seq_ops = {
"scsi default device flag integer value");
/**
- * scsi_dev_info_list_delete - called from scsi.c:exit_scsi to remove the scsi_dev_info_list.
+ * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list
**/
void scsi_exit_devinfo(void)
{
- struct list_head *lh, *lh_next;
- struct scsi_dev_info_list *devinfo;
-
#ifdef CONFIG_SCSI_PROC_FS
remove_proc_entry("scsi/device_info", NULL);
#endif
- list_for_each_safe(lh, lh_next, &scsi_dev_info_list) {
+ scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
+}
+
+/**
+ * scsi_dev_info_add_list - add a new devinfo list
+ * @key: key of the list to add
+ * @name: Name of the list to add (for /proc/scsi/device_info)
+ *
+ * Adds the requested list, returns zero on success, -EEXIST if the
+ * key is already registered to a list, or other error on failure.
+ */
+int scsi_dev_info_add_list(int key, const char *name)
+{
+ struct scsi_dev_info_list_table *devinfo_table =
+ scsi_devinfo_lookup_by_key(key);
+
+ if (!IS_ERR(devinfo_table))
+ /* list already exists */
+ return -EEXIST;
+
+ devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
+
+ if (!devinfo_table)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&devinfo_table->node);
+ INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
+ devinfo_table->name = name;
+ devinfo_table->key = key;
+ list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
+
+ return 0;
+}
+EXPORT_SYMBOL(scsi_dev_info_add_list);
+
+/**
+ * scsi_dev_info_remove_list - destroy an added devinfo list
+ * @key: key of the list to destroy
+ *
+ * Iterates over the entire list first, freeing all the values, then
+ * frees the list itself. Returns 0 on success or -EINVAL if the key
+ * can't be found.
+ */
+int scsi_dev_info_remove_list(int key)
+{
+ struct list_head *lh, *lh_next;
+ struct scsi_dev_info_list_table *devinfo_table =
+ scsi_devinfo_lookup_by_key(key);
+
+ if (IS_ERR(devinfo_table))
+ /* no such list */
+ return -EINVAL;
+
+ /* remove from the master list */
+ list_del(&devinfo_table->node);
+
+ list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
+ struct scsi_dev_info_list *devinfo;
+
devinfo = list_entry(lh, struct scsi_dev_info_list,
dev_info_list);
kfree(devinfo);
}
+ kfree(devinfo_table);
+
+ return 0;
}
+EXPORT_SYMBOL(scsi_dev_info_remove_list);
/**
* scsi_init_devinfo - set up the dynamic device list.
#endif
int error, i;
- error = scsi_dev_info_list_add_str(scsi_dev_flags);
+ error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
if (error)
return error;
+ error = scsi_dev_info_list_add_str(scsi_dev_flags);
+ if (error)
+ goto out;
+
for (i = 0; scsi_static_device_list[i].vendor; i++) {
error = scsi_dev_info_list_add(1 /* compatibile */,
scsi_static_device_list[i].vendor,
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