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ibft: convert iscsi_ibft module to iscsi boot lib 

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

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
Signed-off-by: Peter Jones <pjones@redhat.com>
This commit is contained in:
Mike Christie 2010-04-12 18:06:18 +00:00 committed by Konrad Rzeszutek Wilk
parent ba4ee30c6c
commit b33a84a384
2 changed files with 248 additions and 451 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/firmware/Kconfig
View File

@ -132,6 +132,7 @@ config ISCSI_BOOT_SYSFS
config ISCSI_IBFT config ISCSI_IBFT
tristate "iSCSI Boot Firmware Table Attributes module" tristate "iSCSI Boot Firmware Table Attributes module"
select ISCSI_BOOT_SYSFS
depends on ISCSI_IBFT_FIND depends on ISCSI_IBFT_FIND
default n default n
help help

698
drivers/firmware/iscsi_ibft.c
View File

@ -82,6 +82,7 @@
#include <linux/string.h> #include <linux/string.h>
#include <linux/types.h> #include <linux/types.h>
#include <linux/acpi.h> #include <linux/acpi.h>
#include <linux/iscsi_boot_sysfs.h>
#define IBFT_ISCSI_VERSION "0.5.0" #define IBFT_ISCSI_VERSION "0.5.0"
#define IBFT_ISCSI_DATE "2010-Feb-25" #define IBFT_ISCSI_DATE "2010-Feb-25"
@ -169,74 +170,6 @@ enum ibft_id {
id_end_marker, id_end_marker,
}; };
/*
* 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. * The kobject and attribute structures.
*/ */
@ -249,29 +182,9 @@ struct ibft_kobject {
struct ibft_tgt *tgt; struct ibft_tgt *tgt;
struct ibft_hdr *hdr; struct ibft_hdr *hdr;
}; };
struct kobject kobj;
struct list_head node;
}; };
struct ibft_attribute { static struct iscsi_boot_kset *boot_kset;
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 const char nulls[16]; 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) static int ibft_verify_hdr(char *t, struct ibft_hdr *hdr, int id, int length)
{ {
if (hdr->id != id) { 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 " \ "field header.id to have %d but " \
"found %d instead!\n", id, hdr->id); "found %d instead!\n", t, id, hdr->id);
return -ENODEV; return -ENODEV;
} }
if (hdr->length != length) { 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 " \ "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 -ENODEV;
} }
return 0; 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. * Routines for parsing the iBFT data to be human readable.
*/ */
static ssize_t ibft_attr_show_initiator(struct ibft_kobject *entry, static ssize_t ibft_attr_show_initiator(void *data, int type, char *buf)
struct ibft_attribute *attr,
char *buf)
{ {
struct ibft_kobject *entry = data;
struct ibft_initiator *initiator = entry->initiator; struct ibft_initiator *initiator = entry->initiator;
void *ibft_loc = entry->header; void *ibft_loc = entry->header;
char *str = buf; char *str = buf;
@ -346,26 +251,26 @@ static ssize_t ibft_attr_show_initiator(struct ibft_kobject *entry,
if (!initiator) if (!initiator)
return 0; return 0;
switch (attr->type) { switch (type) {
case ibft_init_index: case ISCSI_BOOT_INI_INDEX:
str += sprintf(str, "%d\n", initiator->hdr.index); str += sprintf(str, "%d\n", initiator->hdr.index);
break; break;
case ibft_init_flags: case ISCSI_BOOT_INI_FLAGS:
str += sprintf(str, "%d\n", initiator->hdr.flags); str += sprintf(str, "%d\n", initiator->hdr.flags);
break; break;
case ibft_init_isns_server: case ISCSI_BOOT_INI_ISNS_SERVER:
str += sprintf_ipaddr(str, initiator->isns_server); str += sprintf_ipaddr(str, initiator->isns_server);
break; break;
case ibft_init_slp_server: case ISCSI_BOOT_INI_SLP_SERVER:
str += sprintf_ipaddr(str, initiator->slp_server); str += sprintf_ipaddr(str, initiator->slp_server);
break; break;
case ibft_init_pri_radius_server: case ISCSI_BOOT_INI_PRI_RADIUS_SERVER:
str += sprintf_ipaddr(str, initiator->pri_radius_server); str += sprintf_ipaddr(str, initiator->pri_radius_server);
break; break;
case ibft_init_sec_radius_server: case ISCSI_BOOT_INI_SEC_RADIUS_SERVER:
str += sprintf_ipaddr(str, initiator->sec_radius_server); str += sprintf_ipaddr(str, initiator->sec_radius_server);
break; break;
case ibft_init_initiator_name: case ISCSI_BOOT_INI_INITIATOR_NAME:
str += sprintf_string(str, initiator->initiator_name_len, str += sprintf_string(str, initiator->initiator_name_len,
(char *)ibft_loc + (char *)ibft_loc +
initiator->initiator_name_off); initiator->initiator_name_off);
@ -377,10 +282,9 @@ static ssize_t ibft_attr_show_initiator(struct ibft_kobject *entry,
return str - buf; return str - buf;
} }
static ssize_t ibft_attr_show_nic(struct ibft_kobject *entry, static ssize_t ibft_attr_show_nic(void *data, int type, char *buf)
struct ibft_attribute *attr,
char *buf)
{ {
struct ibft_kobject *entry = data;
struct ibft_nic *nic = entry->nic; struct ibft_nic *nic = entry->nic;
void *ibft_loc = entry->header; void *ibft_loc = entry->header;
char *str = buf; char *str = buf;
@ -389,42 +293,42 @@ static ssize_t ibft_attr_show_nic(struct ibft_kobject *entry,
if (!nic) if (!nic)
return 0; return 0;
switch (attr->type) { switch (type) {
case ibft_eth_index: case ISCSI_BOOT_ETH_INDEX:
str += sprintf(str, "%d\n", nic->hdr.index); str += sprintf(str, "%d\n", nic->hdr.index);
break; break;
case ibft_eth_flags: case ISCSI_BOOT_ETH_FLAGS:
str += sprintf(str, "%d\n", nic->hdr.flags); str += sprintf(str, "%d\n", nic->hdr.flags);
break; break;
case ibft_eth_ip_addr: case ISCSI_BOOT_ETH_IP_ADDR:
str += sprintf_ipaddr(str, nic->ip_addr); str += sprintf_ipaddr(str, nic->ip_addr);
break; break;
case ibft_eth_subnet_mask: case ISCSI_BOOT_ETH_SUBNET_MASK:
val = cpu_to_be32(~((1 << (32-nic->subnet_mask_prefix))-1)); val = cpu_to_be32(~((1 << (32-nic->subnet_mask_prefix))-1));
str += sprintf(str, "%pI4", &val); str += sprintf(str, "%pI4", &val);
break; break;
case ibft_eth_origin: case ISCSI_BOOT_ETH_ORIGIN:
str += sprintf(str, "%d\n", nic->origin); str += sprintf(str, "%d\n", nic->origin);
break; break;
case ibft_eth_gateway: case ISCSI_BOOT_ETH_GATEWAY:
str += sprintf_ipaddr(str, nic->gateway); str += sprintf_ipaddr(str, nic->gateway);
break; break;
case ibft_eth_primary_dns: case ISCSI_BOOT_ETH_PRIMARY_DNS:
str += sprintf_ipaddr(str, nic->primary_dns); str += sprintf_ipaddr(str, nic->primary_dns);
break; break;
case ibft_eth_secondary_dns: case ISCSI_BOOT_ETH_SECONDARY_DNS:
str += sprintf_ipaddr(str, nic->secondary_dns); str += sprintf_ipaddr(str, nic->secondary_dns);
break; break;
case ibft_eth_dhcp: case ISCSI_BOOT_ETH_DHCP:
str += sprintf_ipaddr(str, nic->dhcp); str += sprintf_ipaddr(str, nic->dhcp);
break; break;
case ibft_eth_vlan: case ISCSI_BOOT_ETH_VLAN:
str += sprintf(str, "%d\n", nic->vlan); str += sprintf(str, "%d\n", nic->vlan);
break; break;
case ibft_eth_mac: case ISCSI_BOOT_ETH_MAC:
str += sprintf(str, "%pM\n", nic->mac); str += sprintf(str, "%pM\n", nic->mac);
break; break;
case ibft_eth_hostname: case ISCSI_BOOT_ETH_HOSTNAME:
str += sprintf_string(str, nic->hostname_len, str += sprintf_string(str, nic->hostname_len,
(char *)ibft_loc + nic->hostname_off); (char *)ibft_loc + nic->hostname_off);
break; break;
@ -435,10 +339,9 @@ static ssize_t ibft_attr_show_nic(struct ibft_kobject *entry,
return str - buf; return str - buf;
}; };
static ssize_t ibft_attr_show_target(struct ibft_kobject *entry, static ssize_t ibft_attr_show_target(void *data, int type, char *buf)
struct ibft_attribute *attr,
char *buf)
{ {
struct ibft_kobject *entry = data;
struct ibft_tgt *tgt = entry->tgt; struct ibft_tgt *tgt = entry->tgt;
void *ibft_loc = entry->header; void *ibft_loc = entry->header;
char *str = buf; char *str = buf;
@ -447,48 +350,48 @@ static ssize_t ibft_attr_show_target(struct ibft_kobject *entry,
if (!tgt) if (!tgt)
return 0; return 0;
switch (attr->type) { switch (type) {
case ibft_tgt_index: case ISCSI_BOOT_TGT_INDEX:
str += sprintf(str, "%d\n", tgt->hdr.index); str += sprintf(str, "%d\n", tgt->hdr.index);
break; break;
case ibft_tgt_flags: case ISCSI_BOOT_TGT_FLAGS:
str += sprintf(str, "%d\n", tgt->hdr.flags); str += sprintf(str, "%d\n", tgt->hdr.flags);
break; break;
case ibft_tgt_ip_addr: case ISCSI_BOOT_TGT_IP_ADDR:
str += sprintf_ipaddr(str, tgt->ip_addr); str += sprintf_ipaddr(str, tgt->ip_addr);
break; break;
case ibft_tgt_port: case ISCSI_BOOT_TGT_PORT:
str += sprintf(str, "%d\n", tgt->port); str += sprintf(str, "%d\n", tgt->port);
break; break;
case ibft_tgt_lun: case ISCSI_BOOT_TGT_LUN:
for (i = 0; i < 8; i++) for (i = 0; i < 8; i++)
str += sprintf(str, "%x", (u8)tgt->lun[i]); str += sprintf(str, "%x", (u8)tgt->lun[i]);
str += sprintf(str, "\n"); str += sprintf(str, "\n");
break; break;
case ibft_tgt_nic_assoc: case ISCSI_BOOT_TGT_NIC_ASSOC:
str += sprintf(str, "%d\n", tgt->nic_assoc); str += sprintf(str, "%d\n", tgt->nic_assoc);
break; break;
case ibft_tgt_chap_type: case ISCSI_BOOT_TGT_CHAP_TYPE:
str += sprintf(str, "%d\n", tgt->chap_type); str += sprintf(str, "%d\n", tgt->chap_type);
break; break;
case ibft_tgt_name: case ISCSI_BOOT_TGT_NAME:
str += sprintf_string(str, tgt->tgt_name_len, str += sprintf_string(str, tgt->tgt_name_len,
(char *)ibft_loc + tgt->tgt_name_off); (char *)ibft_loc + tgt->tgt_name_off);
break; break;
case ibft_tgt_chap_name: case ISCSI_BOOT_TGT_CHAP_NAME:
str += sprintf_string(str, tgt->chap_name_len, str += sprintf_string(str, tgt->chap_name_len,
(char *)ibft_loc + tgt->chap_name_off); (char *)ibft_loc + tgt->chap_name_off);
break; break;
case ibft_tgt_chap_secret: case ISCSI_BOOT_TGT_CHAP_SECRET:
str += sprintf_string(str, tgt->chap_secret_len, str += sprintf_string(str, tgt->chap_secret_len,
(char *)ibft_loc + tgt->chap_secret_off); (char *)ibft_loc + tgt->chap_secret_off);
break; break;
case ibft_tgt_rev_chap_name: case ISCSI_BOOT_TGT_REV_CHAP_NAME:
str += sprintf_string(str, tgt->rev_chap_name_len, str += sprintf_string(str, tgt->rev_chap_name_len,
(char *)ibft_loc + (char *)ibft_loc +
tgt->rev_chap_name_off); tgt->rev_chap_name_off);
break; break;
case ibft_tgt_rev_chap_secret: case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
str += sprintf_string(str, tgt->rev_chap_secret_len, str += sprintf_string(str, tgt->rev_chap_secret_len,
(char *)ibft_loc + (char *)ibft_loc +
tgt->rev_chap_secret_off); tgt->rev_chap_secret_off);
@ -500,40 +403,6 @@ static ssize_t ibft_attr_show_target(struct ibft_kobject *entry,
return str - buf; 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) static int __init ibft_check_device(void)
{ {
int len; int len;
@ -560,13 +429,150 @@ static int __init ibft_check_device(void)
return 0; return 0;
} }
/*
* 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 = S_IRUGO;
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 = S_IRUGO;
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. * Helper function for ibft_register_kobjects.
*/ */
static int __init ibft_create_kobject(struct acpi_table_ibft *header, static int __init ibft_create_kobject(struct acpi_table_ibft *header,
struct ibft_hdr *hdr, struct ibft_hdr *hdr)
struct list_head *list)
{ {
struct iscsi_boot_kobj *boot_kobj = NULL;
struct ibft_kobject *ibft_kobj = NULL; struct ibft_kobject *ibft_kobj = NULL;
struct ibft_nic *nic = (struct ibft_nic *)hdr; struct ibft_nic *nic = (struct ibft_nic *)hdr;
struct pci_dev *pci_dev; struct pci_dev *pci_dev;
@ -583,14 +589,47 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,
case id_initiator: case id_initiator:
rc = ibft_verify_hdr("initiator", hdr, id_initiator, rc = ibft_verify_hdr("initiator", hdr, id_initiator,
sizeof(*ibft_kobj->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; break;
case id_nic: case id_nic:
rc = ibft_verify_hdr("ethernet", hdr, id_nic, rc = ibft_verify_hdr("ethernet", hdr, id_nic,
sizeof(*ibft_kobj->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; break;
case id_target: case id_target:
rc = ibft_verify_hdr("target", hdr, id_target, rc = ibft_verify_hdr("target", hdr, id_target,
sizeof(*ibft_kobj->tgt)); 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; break;
case id_reserved: case id_reserved:
case id_control: case id_control:
@ -608,22 +647,10 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,
if (rc) { if (rc) {
/* Skip adding this kobject, but exit with non-fatal error. */ /* Skip adding this kobject, but exit with non-fatal error. */
kfree(ibft_kobj); rc = 0;
goto out_invalid_struct; 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) { if (hdr->id == id_nic) {
/* /*
* We don't search for the device in other domains than * 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, pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
(nic->pci_bdf & 0xff)); (nic->pci_bdf & 0xff));
if (pci_dev) { if (pci_dev) {
rc = sysfs_create_link(&ibft_kobj->kobj, rc = sysfs_create_link(&boot_kobj->kobj,
&pci_dev->dev.kobj, "device"); &pci_dev->dev.kobj, "device");
pci_dev_put(pci_dev); pci_dev_put(pci_dev);
} }
} }
/* Nothing broke so lets add it to the list. */
list_add_tail(&ibft_kobj->node, list);
out:
return rc;
out_invalid_struct:
/* Unsupported structs are skipped. */
return 0; return 0;
free_ibft_obj:
kfree(ibft_kobj);
return rc;
} }
/* /*
@ -654,8 +678,7 @@ out_invalid_struct:
* found add them on the passed-in list. We do not support the other * found add them on the passed-in list. We do not support the other
* fields at this point, so they are skipped. * fields at this point, so they are skipped.
*/ */
static int __init ibft_register_kobjects(struct acpi_table_ibft *header, static int __init ibft_register_kobjects(struct acpi_table_ibft *header)
struct list_head *list)
{ {
struct ibft_control *control = NULL; struct ibft_control *control = NULL;
void *ptr, *end; void *ptr, *end;
@ -680,8 +703,7 @@ static int __init ibft_register_kobjects(struct acpi_table_ibft *header,
if (offset && offset < header->header.length && if (offset && offset < header->header.length &&
offset < eot_offset) { offset < eot_offset) {
rc = ibft_create_kobject(header, rc = ibft_create_kobject(header,
(void *)header + offset, (void *)header + offset);
list);
if (rc) if (rc)
break; break;
} }
@ -690,240 +712,28 @@ static int __init ibft_register_kobjects(struct acpi_table_ibft *header,
return rc; return rc;
} }
static void ibft_unregister(struct list_head *attr_list, static void ibft_unregister(void)
struct list_head *kobj_list)
{ {
struct ibft_kobject *data = NULL, *n; struct iscsi_boot_kobj *boot_kobj, *tmp_kobj;
struct ibft_attribute *attr = NULL, *m; struct ibft_kobject *ibft_kobj;
list_for_each_entry_safe(attr, m, attr_list, node) { list_for_each_entry_safe(boot_kobj, tmp_kobj,
sysfs_remove_file(attr->kobj, &attr->attr); &boot_kset->kobj_list, list) {
list_del(&attr->node); ibft_kobj = boot_kobj->data;
kfree(attr); if (ibft_kobj->hdr->id == id_nic)
sysfs_remove_link(&boot_kobj->kobj, "device");
}; };
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);
};
list_del_init(kobj_list);
} }
static int __init ibft_create_attribute(struct ibft_kobject *kobj_data, static void ibft_cleanup(void)
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; ibft_unregister();
struct ibft_hdr *hdr = kobj_data->hdr; iscsi_boot_destroy_kset(boot_kset);
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;
} }
/* static void __exit ibft_exit(void)
* 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; ibft_cleanup();
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)
{
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;
}
/*
* Register the attributes for all of the kobjects.
*/
static int __init ibft_register_attributes(struct list_head *kobject_list,
struct list_head *attr_list)
{
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;
} }
/* /*
@ -933,26 +743,20 @@ static int __init ibft_init(void)
{ {
int rc = 0; int rc = 0;
ibft_kset = kset_create_and_add("ibft", NULL, firmware_kobj);
if (!ibft_kset)
return -ENOMEM;
if (ibft_addr) { if (ibft_addr) {
printk(KERN_INFO "iBFT detected at 0x%llx.\n", printk(KERN_INFO "iBFT detected at 0x%llx.\n",
(u64)isa_virt_to_bus(ibft_addr)); (u64)isa_virt_to_bus(ibft_addr));
rc = ibft_check_device(); rc = ibft_check_device();
if (rc) if (rc)
goto out_firmware_unregister; return rc;
boot_kset = iscsi_boot_create_kset("ibft");
if (!boot_kset)
return -ENOMEM;
/* Scan the IBFT for data and register the kobjects. */ /* Scan the IBFT for data and register the kobjects. */
rc = ibft_register_kobjects(ibft_addr, &ibft_kobject_list); rc = ibft_register_kobjects(ibft_addr);
if (rc)
goto out_free;
/* Register the attributes */
rc = ibft_register_attributes(&ibft_kobject_list,
&ibft_attr_list);
if (rc) if (rc)
goto out_free; goto out_free;
} else } else
@ -961,17 +765,9 @@ static int __init ibft_init(void)
return 0; return 0;
out_free: out_free:
ibft_unregister(&ibft_attr_list, &ibft_kobject_list); ibft_cleanup();
out_firmware_unregister:
kset_unregister(ibft_kset);
return rc; 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_init(ibft_init);
module_exit(ibft_exit); module_exit(ibft_exit);