[PATCH 2/2] RFC: iscsi ibft: convert iscsi_ibft module to iscsi boot lib

From: michaelc
Date: Mon Apr 12 2010 - 14:07:30 EST

From: Mike Christie <michaelc@xxxxxxxxxxx>

This patch just converts the iscsi_ibft module to the
iscsi boot sysfs lib module.

This patch was made over the ibft-2.6 tree's ibft-1.03 branch:
http://git.kernel.org/?p=linux/kernel/git/konrad/ibft-2.6.git;a=shortlog;h=refs/heads/ibft-1.03

Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx>
---
drivers/firmware/Kconfig | 1 +
drivers/firmware/iscsi_ibft.c | 698 +++++++++++++++--------------------------
2 files changed, 248 insertions(+), 451 deletions(-)

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 571d218..a6c670b 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -132,6 +132,7 @@ config ISCSI_BOOT_SYSFS

config ISCSI_IBFT
tristate "iSCSI Boot Firmware Table Attributes module"
+ select ISCSI_BOOT_SYSFS
depends on ISCSI_IBFT_FIND
default n
help
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index b3ab24f..6d262be 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -82,6 +82,7 @@
#include <linux/string.h>
#include <linux/types.h>
#include <linux/acpi.h>
+#include <linux/iscsi_boot_sysfs.h>

#define IBFT_ISCSI_VERSION "0.5.0"
#define IBFT_ISCSI_DATE "2010-Feb-25"
@@ -170,74 +171,6 @@ enum ibft_id {
};

/*
- * We do not support the other types, hence the usage of NULL.
- * This maps to the enum ibft_id.
- */
-static const char *ibft_id_names[] =
- {NULL, NULL, "initiator", "ethernet%d", "target%d", NULL, NULL};
-
-/*
- * The text attributes names for each of the kobjects.
-*/
-enum ibft_eth_properties_enum {
- ibft_eth_index,
- ibft_eth_flags,
- ibft_eth_ip_addr,
- ibft_eth_subnet_mask,
- ibft_eth_origin,
- ibft_eth_gateway,
- ibft_eth_primary_dns,
- ibft_eth_secondary_dns,
- ibft_eth_dhcp,
- ibft_eth_vlan,
- ibft_eth_mac,
- /* ibft_eth_pci_bdf - this is replaced by link to the device itself. */
- ibft_eth_hostname,
- ibft_eth_end_marker,
-};
-
-static const char *ibft_eth_properties[] =
- {"index", "flags", "ip-addr", "subnet-mask", "origin", "gateway",
- "primary-dns", "secondary-dns", "dhcp", "vlan", "mac", "hostname",
- NULL};
-
-enum ibft_tgt_properties_enum {
- ibft_tgt_index,
- ibft_tgt_flags,
- ibft_tgt_ip_addr,
- ibft_tgt_port,
- ibft_tgt_lun,
- ibft_tgt_chap_type,
- ibft_tgt_nic_assoc,
- ibft_tgt_name,
- ibft_tgt_chap_name,
- ibft_tgt_chap_secret,
- ibft_tgt_rev_chap_name,
- ibft_tgt_rev_chap_secret,
- ibft_tgt_end_marker,
-};
-
-static const char *ibft_tgt_properties[] =
- {"index", "flags", "ip-addr", "port", "lun", "chap-type", "nic-assoc",
- "target-name", "chap-name", "chap-secret", "rev-chap-name",
- "rev-chap-name-secret", NULL};
-
-enum ibft_initiator_properties_enum {
- ibft_init_index,
- ibft_init_flags,
- ibft_init_isns_server,
- ibft_init_slp_server,
- ibft_init_pri_radius_server,
- ibft_init_sec_radius_server,
- ibft_init_initiator_name,
- ibft_init_end_marker,
-};
-
-static const char *ibft_initiator_properties[] =
- {"index", "flags", "isns-server", "slp-server", "pri-radius-server",
- "sec-radius-server", "initiator-name", NULL};
-
-/*
* The kobject and attribute structures.
*/

@@ -249,29 +182,9 @@ struct ibft_kobject {
struct ibft_tgt *tgt;
struct ibft_hdr *hdr;
};
- struct kobject kobj;
- struct list_head node;
};

-struct ibft_attribute {
- struct attribute attr;
- ssize_t (*show) (struct ibft_kobject *entry,
- struct ibft_attribute *attr, char *buf);
- union {
- struct ibft_initiator *initiator;
- struct ibft_nic *nic;
- struct ibft_tgt *tgt;
- struct ibft_hdr *hdr;
- };
- struct kobject *kobj;
- int type; /* The enum of the type. This can be any value of:
- ibft_eth_properties_enum, ibft_tgt_properties_enum,
- or ibft_initiator_properties_enum. */
- struct list_head node;
-};
-
-static LIST_HEAD(ibft_attr_list);
-static LIST_HEAD(ibft_kobject_list);
+static struct iscsi_boot_kset *boot_kset;

static const char nulls[16];

@@ -310,35 +223,27 @@ static ssize_t sprintf_string(char *str, int len, char *buf)
static int ibft_verify_hdr(char *t, struct ibft_hdr *hdr, int id, int length)
{
if (hdr->id != id) {
- printk(KERN_ERR "iBFT error: We expected the " \
+ printk(KERN_ERR "iBFT error: We expected the %s " \
"field header.id to have %d but " \
- "found %d instead!\n", id, hdr->id);
+ "found %d instead!\n", t, id, hdr->id);
return -ENODEV;
}
if (hdr->length != length) {
- printk(KERN_ERR "iBFT error: We expected the " \
+ printk(KERN_ERR "iBFT error: We expected the %s " \
"field header.length to have %d but " \
- "found %d instead!\n", length, hdr->length);
+ "found %d instead!\n", t, length, hdr->length);
return -ENODEV;
}

return 0;
}

-static void ibft_release(struct kobject *kobj)
-{
- struct ibft_kobject *ibft =
- container_of(kobj, struct ibft_kobject, kobj);
- kfree(ibft);
-}
-
/*
* Routines for parsing the iBFT data to be human readable.
*/
-static ssize_t ibft_attr_show_initiator(struct ibft_kobject *entry,
- struct ibft_attribute *attr,
- char *buf)
+static ssize_t ibft_attr_show_initiator(void *data, int type, char *buf)
{
+ struct ibft_kobject *entry = data;
struct ibft_initiator *initiator = entry->initiator;
void *ibft_loc = entry->header;
char *str = buf;
@@ -346,26 +251,26 @@ static ssize_t ibft_attr_show_initiator(struct ibft_kobject *entry,
if (!initiator)
return 0;

- switch (attr->type) {
- case ibft_init_index:
+ switch (type) {
+ case ISCSI_BOOT_INI_INDEX:
str += sprintf(str, "%d\n", initiator->hdr.index);
break;
- case ibft_init_flags:
+ case ISCSI_BOOT_INI_FLAGS:
str += sprintf(str, "%d\n", initiator->hdr.flags);
break;
- case ibft_init_isns_server:
+ case ISCSI_BOOT_INI_ISNS_SERVER:
str += sprintf_ipaddr(str, initiator->isns_server);
break;
- case ibft_init_slp_server:
+ case ISCSI_BOOT_INI_SLP_SERVER:
str += sprintf_ipaddr(str, initiator->slp_server);
break;
- case ibft_init_pri_radius_server:
+ case ISCSI_BOOT_INI_PRI_RADIUS_SERVER:
str += sprintf_ipaddr(str, initiator->pri_radius_server);
break;
- case ibft_init_sec_radius_server:
+ case ISCSI_BOOT_INI_SEC_RADIUS_SERVER:
str += sprintf_ipaddr(str, initiator->sec_radius_server);
break;
- case ibft_init_initiator_name:
+ case ISCSI_BOOT_INI_INITIATOR_NAME:
str += sprintf_string(str, initiator->initiator_name_len,
(char *)ibft_loc +
initiator->initiator_name_off);
@@ -377,10 +282,9 @@ static ssize_t ibft_attr_show_initiator(struct ibft_kobject *entry,
return str - buf;
}

-static ssize_t ibft_attr_show_nic(struct ibft_kobject *entry,
- struct ibft_attribute *attr,
- char *buf)
+static ssize_t ibft_attr_show_nic(void *data, int type, char *buf)
{
+ struct ibft_kobject *entry = data;
struct ibft_nic *nic = entry->nic;
void *ibft_loc = entry->header;
char *str = buf;
@@ -389,42 +293,42 @@ static ssize_t ibft_attr_show_nic(struct ibft_kobject *entry,
if (!nic)
return 0;

- switch (attr->type) {
- case ibft_eth_index:
+ switch (type) {
+ case ISCSI_BOOT_ETH_INDEX:
str += sprintf(str, "%d\n", nic->hdr.index);
break;
- case ibft_eth_flags:
+ case ISCSI_BOOT_ETH_FLAGS:
str += sprintf(str, "%d\n", nic->hdr.flags);
break;
- case ibft_eth_ip_addr:
+ case ISCSI_BOOT_ETH_IP_ADDR:
str += sprintf_ipaddr(str, nic->ip_addr);
break;
- case ibft_eth_subnet_mask:
+ case ISCSI_BOOT_ETH_SUBNET_MASK:
val = cpu_to_be32(~((1 << (32-nic->subnet_mask_prefix))-1));
str += sprintf(str, "%pI4", &val);
break;
- case ibft_eth_origin:
+ case ISCSI_BOOT_ETH_ORIGIN:
str += sprintf(str, "%d\n", nic->origin);
break;
- case ibft_eth_gateway:
+ case ISCSI_BOOT_ETH_GATEWAY:
str += sprintf_ipaddr(str, nic->gateway);
break;
- case ibft_eth_primary_dns:
+ case ISCSI_BOOT_ETH_PRIMARY_DNS:
str += sprintf_ipaddr(str, nic->primary_dns);
break;
- case ibft_eth_secondary_dns:
+ case ISCSI_BOOT_ETH_SECONDARY_DNS:
str += sprintf_ipaddr(str, nic->secondary_dns);
break;
- case ibft_eth_dhcp:
+ case ISCSI_BOOT_ETH_DHCP:
str += sprintf_ipaddr(str, nic->dhcp);
break;
- case ibft_eth_vlan:
+ case ISCSI_BOOT_ETH_VLAN:
str += sprintf(str, "%d\n", nic->vlan);
break;
- case ibft_eth_mac:
+ case ISCSI_BOOT_ETH_MAC:
str += sprintf(str, "%pM\n", nic->mac);
break;
- case ibft_eth_hostname:
+ case ISCSI_BOOT_ETH_HOSTNAME:
str += sprintf_string(str, nic->hostname_len,
(char *)ibft_loc + nic->hostname_off);
break;
@@ -435,10 +339,9 @@ static ssize_t ibft_attr_show_nic(struct ibft_kobject *entry,
return str - buf;
};

-static ssize_t ibft_attr_show_target(struct ibft_kobject *entry,
- struct ibft_attribute *attr,
- char *buf)
+static ssize_t ibft_attr_show_target(void *data, int type, char *buf)
{
+ struct ibft_kobject *entry = data;
struct ibft_tgt *tgt = entry->tgt;
void *ibft_loc = entry->header;
char *str = buf;
@@ -447,48 +350,48 @@ static ssize_t ibft_attr_show_target(struct ibft_kobject *entry,
if (!tgt)
return 0;

- switch (attr->type) {
- case ibft_tgt_index:
+ switch (type) {
+ case ISCSI_BOOT_TGT_INDEX:
str += sprintf(str, "%d\n", tgt->hdr.index);
break;
- case ibft_tgt_flags:
+ case ISCSI_BOOT_TGT_FLAGS:
str += sprintf(str, "%d\n", tgt->hdr.flags);
break;
- case ibft_tgt_ip_addr:
+ case ISCSI_BOOT_TGT_IP_ADDR:
str += sprintf_ipaddr(str, tgt->ip_addr);
break;
- case ibft_tgt_port:
+ case ISCSI_BOOT_TGT_PORT:
str += sprintf(str, "%d\n", tgt->port);
break;
- case ibft_tgt_lun:
+ case ISCSI_BOOT_TGT_LUN:
for (i = 0; i < 8; i++)
str += sprintf(str, "%x", (u8)tgt->lun[i]);
str += sprintf(str, "\n");
break;
- case ibft_tgt_nic_assoc:
+ case ISCSI_BOOT_TGT_NIC_ASSOC:
str += sprintf(str, "%d\n", tgt->nic_assoc);
break;
- case ibft_tgt_chap_type:
+ case ISCSI_BOOT_TGT_CHAP_TYPE:
str += sprintf(str, "%d\n", tgt->chap_type);
break;
- case ibft_tgt_name:
+ case ISCSI_BOOT_TGT_NAME:
str += sprintf_string(str, tgt->tgt_name_len,
(char *)ibft_loc + tgt->tgt_name_off);
break;
- case ibft_tgt_chap_name:
+ case ISCSI_BOOT_TGT_CHAP_NAME:
str += sprintf_string(str, tgt->chap_name_len,
(char *)ibft_loc + tgt->chap_name_off);
break;
- case ibft_tgt_chap_secret:
+ case ISCSI_BOOT_TGT_CHAP_SECRET:
str += sprintf_string(str, tgt->chap_secret_len,
(char *)ibft_loc + tgt->chap_secret_off);
break;
- case ibft_tgt_rev_chap_name:
+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
str += sprintf_string(str, tgt->rev_chap_name_len,
(char *)ibft_loc +
tgt->rev_chap_name_off);
break;
- case ibft_tgt_rev_chap_secret:
+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
str += sprintf_string(str, tgt->rev_chap_secret_len,
(char *)ibft_loc +
tgt->rev_chap_secret_off);
@@ -500,40 +403,6 @@ static ssize_t ibft_attr_show_target(struct ibft_kobject *entry,
return str - buf;
}

-/*
- * The routine called for all sysfs attributes.
- */
-static ssize_t ibft_show_attribute(struct kobject *kobj,
- struct attribute *attr,
- char *buf)
-{
- struct ibft_kobject *dev =
- container_of(kobj, struct ibft_kobject, kobj);
- struct ibft_attribute *ibft_attr =
- container_of(attr, struct ibft_attribute, attr);
- ssize_t ret = -EIO;
- char *str = buf;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
-
- if (ibft_attr->show)
- ret = ibft_attr->show(dev, ibft_attr, str);
-
- return ret;
-}
-
-static const struct sysfs_ops ibft_attr_ops = {
- .show = ibft_show_attribute,
-};
-
-static struct kobj_type ibft_ktype = {
- .release = ibft_release,
- .sysfs_ops = &ibft_attr_ops,
-};
-
-static struct kset *ibft_kset;
-
static int __init ibft_check_device(void)
{
int len;
@@ -561,12 +430,149 @@ static int __init ibft_check_device(void)
}

/*
+ * Helper routiners to check to determine if the entry is valid
+ * in the proper iBFT structure.
+ */
+static mode_t ibft_check_nic_for(void *data, int type)
+{
+ struct ibft_kobject *entry = data;
+ struct ibft_nic *nic = entry->nic;
+ mode_t rc = 0;
+
+ switch (type) {
+ case ISCSI_BOOT_ETH_INDEX:
+ case ISCSI_BOOT_ETH_FLAGS:
+ rc = 1;
+ break;
+ case ISCSI_BOOT_ETH_IP_ADDR:
+ if (memcmp(nic->ip_addr, nulls, sizeof(nic->ip_addr)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_ETH_SUBNET_MASK:
+ if (nic->subnet_mask_prefix)
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_ETH_ORIGIN:
+ rc = 1;
+ break;
+ case ISCSI_BOOT_ETH_GATEWAY:
+ if (memcmp(nic->gateway, nulls, sizeof(nic->gateway)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_ETH_PRIMARY_DNS:
+ if (memcmp(nic->primary_dns, nulls,
+ sizeof(nic->primary_dns)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_ETH_SECONDARY_DNS:
+ if (memcmp(nic->secondary_dns, nulls,
+ sizeof(nic->secondary_dns)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_ETH_DHCP:
+ if (memcmp(nic->dhcp, nulls, sizeof(nic->dhcp)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_ETH_VLAN:
+ case ISCSI_BOOT_ETH_MAC:
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_ETH_HOSTNAME:
+ if (nic->hostname_off)
+ rc = S_IRUGO;
+ break;
+ default:
+ break;
+ }
+
+ return rc;
+}
+
+static mode_t __init ibft_check_tgt_for(void *data, int type)
+{
+ struct ibft_kobject *entry = data;
+ struct ibft_tgt *tgt = entry->tgt;
+ mode_t rc = 0;
+
+ switch (type) {
+ case ISCSI_BOOT_TGT_INDEX:
+ case ISCSI_BOOT_TGT_FLAGS:
+ case ISCSI_BOOT_TGT_IP_ADDR:
+ case ISCSI_BOOT_TGT_PORT:
+ case ISCSI_BOOT_TGT_LUN:
+ case ISCSI_BOOT_TGT_NIC_ASSOC:
+ case ISCSI_BOOT_TGT_CHAP_TYPE:
+ rc = S_IRUGO;
+ case ISCSI_BOOT_TGT_NAME:
+ if (tgt->tgt_name_len)
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_TGT_CHAP_NAME:
+ case ISCSI_BOOT_TGT_CHAP_SECRET:
+ if (tgt->chap_name_len)
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
+ if (tgt->rev_chap_name_len)
+ rc = S_IRUGO;
+ break;
+ default:
+ break;
+ }
+
+ return rc;
+}
+
+static mode_t __init ibft_check_initiator_for(void *data, int type)
+{
+ struct ibft_kobject *entry = data;
+ struct ibft_initiator *init = entry->initiator;
+ mode_t rc = 0;
+
+ switch (type) {
+ case ISCSI_BOOT_INI_INDEX:
+ case ISCSI_BOOT_INI_FLAGS:
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_INI_ISNS_SERVER:
+ if (memcmp(init->isns_server, nulls,
+ sizeof(init->isns_server)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_INI_SLP_SERVER:
+ if (memcmp(init->slp_server, nulls,
+ sizeof(init->slp_server)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_INI_PRI_RADIUS_SERVER:
+ if (memcmp(init->pri_radius_server, nulls,
+ sizeof(init->pri_radius_server)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_INI_SEC_RADIUS_SERVER:
+ if (memcmp(init->sec_radius_server, nulls,
+ sizeof(init->sec_radius_server)))
+ rc = S_IRUGO;
+ break;
+ case ISCSI_BOOT_INI_INITIATOR_NAME:
+ if (init->initiator_name_len)
+ rc = S_IRUGO;
+ break;
+ default:
+ break;
+ }
+
+ return rc;
+}
+
+/*
* Helper function for ibft_register_kobjects.
*/
static int __init ibft_create_kobject(struct acpi_table_ibft *header,
- struct ibft_hdr *hdr,
- struct list_head *list)
+ struct ibft_hdr *hdr)
{
+ struct iscsi_boot_kobj *boot_kobj = NULL;
struct ibft_kobject *ibft_kobj = NULL;
struct ibft_nic *nic = (struct ibft_nic *)hdr;
struct pci_dev *pci_dev;
@@ -583,14 +589,47 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,
case id_initiator:
rc = ibft_verify_hdr("initiator", hdr, id_initiator,
sizeof(*ibft_kobj->initiator));
+ if (rc)
+ break;
+
+ boot_kobj = iscsi_boot_create_initiator(boot_kset, hdr->index,
+ ibft_kobj,
+ ibft_attr_show_initiator,
+ ibft_check_initiator_for);
+ if (!boot_kobj) {
+ rc = -ENOMEM;
+ goto free_ibft_obj;
+ }
break;
case id_nic:
rc = ibft_verify_hdr("ethernet", hdr, id_nic,
sizeof(*ibft_kobj->nic));
+ if (rc)
+ break;
+
+ boot_kobj = iscsi_boot_create_ethernet(boot_kset, hdr->index,
+ ibft_kobj,
+ ibft_attr_show_nic,
+ ibft_check_nic_for);
+ if (!boot_kobj) {
+ rc = -ENOMEM;
+ goto free_ibft_obj;
+ }
break;
case id_target:
rc = ibft_verify_hdr("target", hdr, id_target,
sizeof(*ibft_kobj->tgt));
+ if (rc)
+ break;
+
+ boot_kobj = iscsi_boot_create_target(boot_kset, hdr->index,
+ ibft_kobj,
+ ibft_attr_show_target,
+ ibft_check_tgt_for);
+ if (!boot_kobj) {
+ rc = -ENOMEM;
+ goto free_ibft_obj;
+ }
break;
case id_reserved:
case id_control:
@@ -608,22 +647,10 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,

if (rc) {
/* Skip adding this kobject, but exit with non-fatal error. */
- kfree(ibft_kobj);
- goto out_invalid_struct;
+ rc = 0;
+ goto free_ibft_obj;
}

- ibft_kobj->kobj.kset = ibft_kset;
-
- rc = kobject_init_and_add(&ibft_kobj->kobj, &ibft_ktype,
- NULL, ibft_id_names[hdr->id], hdr->index);
-
- if (rc) {
- kfree(ibft_kobj);
- goto out;
- }
-
- kobject_uevent(&ibft_kobj->kobj, KOBJ_ADD);
-
if (hdr->id == id_nic) {
/*
* We don't search for the device in other domains than
@@ -634,19 +661,16 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,
pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
(nic->pci_bdf & 0xff));
if (pci_dev) {
- rc = sysfs_create_link(&ibft_kobj->kobj,
+ rc = sysfs_create_link(&boot_kobj->kobj,
&pci_dev->dev.kobj, "device");
pci_dev_put(pci_dev);
}
}
+ return 0;

- /* Nothing broke so lets add it to the list. */
- list_add_tail(&ibft_kobj->node, list);
-out:
+free_ibft_obj:
+ kfree(ibft_kobj);
return rc;
-out_invalid_struct:
- /* Unsupported structs are skipped. */
- return 0;
}

/*
@@ -654,8 +678,7 @@ out_invalid_struct:
* found add them on the passed-in list. We do not support the other
* fields at this point, so they are skipped.
*/
-static int __init ibft_register_kobjects(struct acpi_table_ibft *header,
- struct list_head *list)
+static int __init ibft_register_kobjects(struct acpi_table_ibft *header)
{
struct ibft_control *control = NULL;
void *ptr, *end;
@@ -680,8 +703,7 @@ static int __init ibft_register_kobjects(struct acpi_table_ibft *header,
if (offset && offset < header->header.length &&
offset < eot_offset) {
rc = ibft_create_kobject(header,
- (void *)header + offset,
- list);
+ (void *)header + offset);
if (rc)
break;
}
@@ -690,240 +712,28 @@ static int __init ibft_register_kobjects(struct acpi_table_ibft *header,
return rc;
}

-static void ibft_unregister(struct list_head *attr_list,
- struct list_head *kobj_list)
+static void ibft_unregister(void)
{
- struct ibft_kobject *data = NULL, *n;
- struct ibft_attribute *attr = NULL, *m;
-
- list_for_each_entry_safe(attr, m, attr_list, node) {
- sysfs_remove_file(attr->kobj, &attr->attr);
- list_del(&attr->node);
- kfree(attr);
- };
- list_del_init(attr_list);
-
- list_for_each_entry_safe(data, n, kobj_list, node) {
- list_del(&data->node);
- if (data->hdr->id == id_nic)
- sysfs_remove_link(&data->kobj, "device");
- kobject_put(&data->kobj);
+ struct iscsi_boot_kobj *boot_kobj, *tmp_kobj;
+ struct ibft_kobject *ibft_kobj;
+
+ list_for_each_entry_safe(boot_kobj, tmp_kobj,
+ &boot_kset->kobj_list, list) {
+ ibft_kobj = boot_kobj->data;
+ if (ibft_kobj->hdr->id == id_nic)
+ sysfs_remove_link(&boot_kobj->kobj, "device");
};
- list_del_init(kobj_list);
-}
-
-static int __init ibft_create_attribute(struct ibft_kobject *kobj_data,
- int type,
- const char *name,
- ssize_t (*show)(struct ibft_kobject *,
- struct ibft_attribute*,
- char *buf),
- struct list_head *list)
-{
- struct ibft_attribute *attr = NULL;
- struct ibft_hdr *hdr = kobj_data->hdr;
-
- attr = kmalloc(sizeof(*attr), GFP_KERNEL);
- if (!attr)
- return -ENOMEM;
-
- attr->attr.name = name;
- attr->attr.mode = S_IRUSR;
-
- attr->hdr = hdr;
- attr->show = show;
- attr->kobj = &kobj_data->kobj;
- attr->type = type;
-
- list_add_tail(&attr->node, list);
-
- return 0;
-}
-
-/*
- * Helper routiners to check to determine if the entry is valid
- * in the proper iBFT structure.
- */
-static int __init ibft_check_nic_for(struct ibft_nic *nic, int entry)
-{
- int rc = 0;
-
- switch (entry) {
- case ibft_eth_index:
- case ibft_eth_flags:
- rc = 1;
- break;
- case ibft_eth_ip_addr:
- if (memcmp(nic->ip_addr, nulls, sizeof(nic->ip_addr)))
- rc = 1;
- break;
- case ibft_eth_subnet_mask:
- if (nic->subnet_mask_prefix)
- rc = 1;
- break;
- case ibft_eth_origin:
- rc = 1;
- break;
- case ibft_eth_gateway:
- if (memcmp(nic->gateway, nulls, sizeof(nic->gateway)))
- rc = 1;
- break;
- case ibft_eth_primary_dns:
- if (memcmp(nic->primary_dns, nulls,
- sizeof(nic->primary_dns)))
- rc = 1;
- break;
- case ibft_eth_secondary_dns:
- if (memcmp(nic->secondary_dns, nulls,
- sizeof(nic->secondary_dns)))
- rc = 1;
- break;
- case ibft_eth_dhcp:
- if (memcmp(nic->dhcp, nulls, sizeof(nic->dhcp)))
- rc = 1;
- break;
- case ibft_eth_vlan:
- case ibft_eth_mac:
- rc = 1;
- break;
- case ibft_eth_hostname:
- if (nic->hostname_off)
- rc = 1;
- break;
- default:
- break;
- }
-
- return rc;
-}
-
-static int __init ibft_check_tgt_for(struct ibft_tgt *tgt, int entry)
-{
- int rc = 0;
-
- switch (entry) {
- case ibft_tgt_index:
- case ibft_tgt_flags:
- case ibft_tgt_ip_addr:
- case ibft_tgt_port:
- case ibft_tgt_lun:
- case ibft_tgt_nic_assoc:
- case ibft_tgt_chap_type:
- rc = 1;
- case ibft_tgt_name:
- if (tgt->tgt_name_len)
- rc = 1;
- break;
- case ibft_tgt_chap_name:
- case ibft_tgt_chap_secret:
- if (tgt->chap_name_len)
- rc = 1;
- break;
- case ibft_tgt_rev_chap_name:
- case ibft_tgt_rev_chap_secret:
- if (tgt->rev_chap_name_len)
- rc = 1;
- break;
- default:
- break;
- }
-
- return rc;
}

-static int __init ibft_check_initiator_for(struct ibft_initiator *init,
- int entry)
+static void ibft_cleanup(void)
{
- int rc = 0;
-
- switch (entry) {
- case ibft_init_index:
- case ibft_init_flags:
- rc = 1;
- break;
- case ibft_init_isns_server:
- if (memcmp(init->isns_server, nulls,
- sizeof(init->isns_server)))
- rc = 1;
- break;
- case ibft_init_slp_server:
- if (memcmp(init->slp_server, nulls,
- sizeof(init->slp_server)))
- rc = 1;
- break;
- case ibft_init_pri_radius_server:
- if (memcmp(init->pri_radius_server, nulls,
- sizeof(init->pri_radius_server)))
- rc = 1;
- break;
- case ibft_init_sec_radius_server:
- if (memcmp(init->sec_radius_server, nulls,
- sizeof(init->sec_radius_server)))
- rc = 1;
- break;
- case ibft_init_initiator_name:
- if (init->initiator_name_len)
- rc = 1;
- break;
- default:
- break;
- }
-
- return rc;
+ ibft_unregister();
+ iscsi_boot_destroy_kset(boot_kset);
}

-/*
- * Register the attributes for all of the kobjects.
- */
-static int __init ibft_register_attributes(struct list_head *kobject_list,
- struct list_head *attr_list)
+static void __exit ibft_exit(void)
{
- int rc = 0, i = 0;
- struct ibft_kobject *data = NULL;
- struct ibft_attribute *attr = NULL, *m;
-
- list_for_each_entry(data, kobject_list, node) {
- switch (data->hdr->id) {
- case id_nic:
- for (i = 0; i < ibft_eth_end_marker && !rc; i++)
- if (ibft_check_nic_for(data->nic, i))
- rc = ibft_create_attribute(data, i,
- ibft_eth_properties[i],
- ibft_attr_show_nic, attr_list);
- break;
- case id_target:
- for (i = 0; i < ibft_tgt_end_marker && !rc; i++)
- if (ibft_check_tgt_for(data->tgt, i))
- rc = ibft_create_attribute(data, i,
- ibft_tgt_properties[i],
- ibft_attr_show_target,
- attr_list);
- break;
- case id_initiator:
- for (i = 0; i < ibft_init_end_marker && !rc; i++)
- if (ibft_check_initiator_for(
- data->initiator, i))
- rc = ibft_create_attribute(data, i,
- ibft_initiator_properties[i],
- ibft_attr_show_initiator,
- attr_list);
- break;
- default:
- break;
- }
- if (rc)
- break;
- }
- list_for_each_entry_safe(attr, m, attr_list, node) {
- rc = sysfs_create_file(attr->kobj, &attr->attr);
- if (rc) {
- list_del(&attr->node);
- kfree(attr);
- break;
- }
- }
-
- return rc;
+ ibft_cleanup();
}

/*
@@ -933,26 +743,20 @@ static int __init ibft_init(void)
{
int rc = 0;

- ibft_kset = kset_create_and_add("ibft", NULL, firmware_kobj);
- if (!ibft_kset)
- return -ENOMEM;
-
if (ibft_addr) {
printk(KERN_INFO "iBFT detected at 0x%llx.\n",
(u64)isa_virt_to_bus(ibft_addr));

rc = ibft_check_device();
if (rc)
- goto out_firmware_unregister;
+ return rc;

- /* Scan the IBFT for data and register the kobjects. */
- rc = ibft_register_kobjects(ibft_addr, &ibft_kobject_list);
- if (rc)
- goto out_free;
+ boot_kset = iscsi_boot_create_kset("ibft");
+ if (!boot_kset)
+ return -ENOMEM;

- /* Register the attributes */
- rc = ibft_register_attributes(&ibft_kobject_list,
- &ibft_attr_list);
+ /* Scan the IBFT for data and register the kobjects. */
+ rc = ibft_register_kobjects(ibft_addr);
if (rc)
goto out_free;
} else
@@ -961,17 +765,9 @@ static int __init ibft_init(void)
return 0;

out_free:
- ibft_unregister(&ibft_attr_list, &ibft_kobject_list);
-out_firmware_unregister:
- kset_unregister(ibft_kset);
+ ibft_cleanup();
return rc;
}

-static void __exit ibft_exit(void)
-{
- ibft_unregister(&ibft_attr_list, &ibft_kobject_list);
- kset_unregister(ibft_kset);
-}
-
module_init(ibft_init);
module_exit(ibft_exit);
--
1.6.6.1

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