static __init enum ipl_type get_ipl_type(void)
{
- struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
-
if (!(ipl_flags & IPL_DEVNO_VALID))
return IPL_TYPE_UNKNOWN;
if (!(ipl_flags & IPL_PARMBLOCK_VALID))
return IPL_TYPE_CCW;
- if (ipl->hdr.version > IPL_MAX_SUPPORTED_VERSION)
+ if (ipl_block.hdr.version > IPL_MAX_SUPPORTED_VERSION)
return IPL_TYPE_UNKNOWN;
- if (ipl->hdr.pbt != DIAG308_IPL_TYPE_FCP)
+ if (ipl_block.hdr.pbt != DIAG308_IPL_TYPE_FCP)
return IPL_TYPE_UNKNOWN;
- if (ipl->ipl_info.fcp.opt == DIAG308_IPL_OPT_DUMP)
+ if (ipl_block.ipl_info.fcp.opt == DIAG308_IPL_OPT_DUMP)
return IPL_TYPE_FCP_DUMP;
return IPL_TYPE_FCP;
}
static ssize_t sys_ipl_device_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
{
- struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
-
switch (ipl_info.type) {
case IPL_TYPE_CCW:
return sprintf(page, "0.%x.%04x\n", ipl_ssid, ipl_devno);
case IPL_TYPE_FCP:
case IPL_TYPE_FCP_DUMP:
- return sprintf(page, "0.0.%04x\n", ipl->ipl_info.fcp.devno);
+ return sprintf(page, "0.0.%04x\n",
+ ipl_block.ipl_info.fcp.devno);
default:
return 0;
}
struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
- return memory_read_from_buffer(buf, count, &off, IPL_PARMBLOCK_START,
- IPL_PARMBLOCK_SIZE);
+ return memory_read_from_buffer(buf, count, &off, &ipl_block,
+ ipl_block.hdr.len);
}
static struct bin_attribute ipl_parameter_attr =
__BIN_ATTR(binary_parameter, S_IRUGO, ipl_parameter_read, NULL,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
- unsigned int size = IPL_PARMBLOCK_START->ipl_info.fcp.scp_data_len;
- void *scp_data = &IPL_PARMBLOCK_START->ipl_info.fcp.scp_data;
+ unsigned int size = ipl_block.ipl_info.fcp.scp_data_len;
+ void *scp_data = &ipl_block.ipl_info.fcp.scp_data;
return memory_read_from_buffer(buf, count, &off, scp_data, size);
}
/* FCP ipl device attributes */
-DEFINE_IPL_ATTR_RO(ipl_fcp, wwpn, "0x%016llx\n", (unsigned long long)
- IPL_PARMBLOCK_START->ipl_info.fcp.wwpn);
-DEFINE_IPL_ATTR_RO(ipl_fcp, lun, "0x%016llx\n", (unsigned long long)
- IPL_PARMBLOCK_START->ipl_info.fcp.lun);
-DEFINE_IPL_ATTR_RO(ipl_fcp, bootprog, "%lld\n", (unsigned long long)
- IPL_PARMBLOCK_START->ipl_info.fcp.bootprog);
-DEFINE_IPL_ATTR_RO(ipl_fcp, br_lba, "%lld\n", (unsigned long long)
- IPL_PARMBLOCK_START->ipl_info.fcp.br_lba);
+DEFINE_IPL_ATTR_RO(ipl_fcp, wwpn, "0x%016llx\n",
+ (unsigned long long)ipl_block.ipl_info.fcp.wwpn);
+DEFINE_IPL_ATTR_RO(ipl_fcp, lun, "0x%016llx\n",
+ (unsigned long long)ipl_block.ipl_info.fcp.lun);
+DEFINE_IPL_ATTR_RO(ipl_fcp, bootprog, "%lld\n",
+ (unsigned long long)ipl_block.ipl_info.fcp.bootprog);
+DEFINE_IPL_ATTR_RO(ipl_fcp, br_lba, "%lld\n",
+ (unsigned long long)ipl_block.ipl_info.fcp.br_lba);
static ssize_t ipl_ccw_loadparm_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)
}
if (ipl_info.type == IPL_TYPE_FCP) {
- memcpy(reipl_block_fcp, IPL_PARMBLOCK_START, PAGE_SIZE);
+ memcpy(reipl_block_fcp, &ipl_block, sizeof(ipl_block));
/*
* Fix loadparm: There are systems where the (SCSI) LOADPARM
* is invalid in the SCSI IPL parameter block, so take it
void __init setup_ipl(void)
{
+ BUILD_BUG_ON(sizeof(struct ipl_parameter_block) != PAGE_SIZE);
+
ipl_info.type = get_ipl_type();
switch (ipl_info.type) {
case IPL_TYPE_CCW:
case IPL_TYPE_FCP:
case IPL_TYPE_FCP_DUMP:
ipl_info.data.fcp.dev_id.ssid = 0;
- ipl_info.data.fcp.dev_id.devno =
- IPL_PARMBLOCK_START->ipl_info.fcp.devno;
- ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn;
- ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
+ ipl_info.data.fcp.dev_id.devno = ipl_block.ipl_info.fcp.devno;
+ ipl_info.data.fcp.wwpn = ipl_block.ipl_info.fcp.wwpn;
+ ipl_info.data.fcp.lun = ipl_block.ipl_info.fcp.lun;
break;
case IPL_TYPE_NSS:
case IPL_TYPE_UNKNOWN:
rc = diag308(DIAG308_STORE, &ipl_block);
if ((rc == DIAG308_RC_OK) || (rc == DIAG308_RC_NOCONFIG))
diag308_set_works = 1;
+ if (rc != DIAG308_RC_OK && (ipl_flags & IPL_PARMBLOCK_VALID))
+ memcpy(&ipl_block, (void *)IPL_PARMBLOCK_ORIGIN, PAGE_SIZE);
}
void __init ipl_verify_parameters(void)