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org-hyperion-cules/scescsi.c
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gottfriedleibniz d79382bbfe Run codespell on README, build, and source files. (#824) 
* chore: run codespell on source/header files

Fixes most reported typos discovered by codespell (while trying to be
unopinionated about American vs. British English).

* chore: run codespell on build/readme files
2026-04-10 11:01:50 -07:00

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/* SCESCSI.C (C) Copyright Jan Jaeger, 1999-2012 */
/* (C) and others 2013-2021 */
/* Service Control Element SCSI Boot Support Functions */
/* */
/* Released under "The Q Public License Version 1" */
/* (http://www.hercules-390.org/herclic.html) as modifications to */
/* Hercules. */
/* z/Architecture support - (C) Copyright Jan Jaeger, 1999-2012 */
#include "hstdinc.h"
DISABLE_GCC_UNUSED_FUNCTION_WARNING;
#include "hercules.h"
#include "opcode.h"
#include "inline.h"
#include "service.h"
#if defined( _FEATURE_HARDWARE_LOADER )
/*-------------------------------------------------------------------*/
/* non-ARCH_DEP helper functions */
/* compiled only once, the first time */
/*-------------------------------------------------------------------*/
#ifndef _SCEHWL_C
#define _SCEHWL_C
#define BOOT_PARM_ADDR 0x01FFD000
#define SDIAS_STORE_STATUS_MAXSIZE 0x02000000
#define HWL_MAXFILETYPE 8 /* Number of supported files */
/*-------------------------------------------------------------------*/
/* SCSI Boot Request */
/*-------------------------------------------------------------------*/
typedef struct _SCSI_BOOT_BK
{
/*000*/ FWORD xml_off; /* Offset to XML data */
/*004*/ FWORD resv004;
/*008*/ FWORD scp_off; /* Offset to SCP data */
/*00C*/ FWORD resv00c;
/*010*/ FWORD resv010[78];
/*148*/ BYTE ldind; /* Load/Dump indicator */
#define SCSI_BOOT_LDIND_LOAD 0x10
#define SCSI_BOOT_LDIND_DUMP 0x20
/*149*/ BYTE resv149[3];
/*14C*/ HWORD resv14c;
/*14E*/ HWORD devno; /* Device Number */
/*150*/ FWORD resv150;
/*154*/ DBLWRD wwpn; /* World Wide Port Name */
/*15C*/ DBLWRD lun; /* LUN */
/*164*/ FWORD prog; /* Boot Program */
/*168*/ FWORD resv168[3];
/*174*/ DBLWRD brlba; /* br_lba */
/*17C*/ FWORD scp_len; /* Length of SCP Data */
/*180*/ FWORD resv180[65];
}
SCSI_BOOT_BK;
/*-------------------------------------------------------------------*/
/* Store Data In Absolute Storage */
/*-------------------------------------------------------------------*/
typedef struct _SCCB_SDIAS_BK
{
/*006*/ BYTE event_qual;
#define SCCB_SDIAS_ENVENTQUAL_EQ_INFO 0x01
#define SCCB_SDIAS_ENVENTQUAL_EQ_READ 0x00
/*007*/ BYTE data_id;
#define SCCB_SDIAS_DATAID_FCPDUMP 0x00
/*008*/ DBLWRD reserved2;
/*010*/ FWORD event_id;
#define SCCB_SDIAS_ENVENTID_4712 4712
/*014*/ HWORD reserved3;
/*016*/ BYTE asa_size;
#define SCCB_SDIAS_ASASIZE_32 0x00
#define SCCB_SDIAS_ASASIZE_64 0x01
/*017*/ BYTE event_status;
#define SCCB_SDIAS_STATUS_ALL_STORED 0x00
#define SCCB_SDIAS_STATUS_PART_STORED 0x03
#define SCCB_SDIAS_STATUS_NO_DATA 0x10
/*018*/ FWORD reserved4;
/*01C*/ FWORD blk_cnt;
/*020*/ DBLWRD asa;
/*028*/ FWORD reserved5;
/*02C*/ FWORD fbn;
/*030*/ FWORD reserved6;
/*034*/ FWORD lbn;
/*038*/ HWORD reserved7;
/*03A*/ HWORD dbs;
#define SCCB_SDIAS_DBS_1 0x01
}
SCCB_SDIAS_BK;
/*-------------------------------------------------------------------*/
/* Hardware load request */
/*-------------------------------------------------------------------*/
typedef struct _SCCB_HWL_BK
{
/*006*/ BYTE type;
#define SCCB_HWL_TYPE_LOAD 0x00 /* Load request */
#define SCCB_HWL_TYPE_RESET 0x01 /* Reset request */
#define SCCB_HWL_TYPE_INFO 0x02 /* Load info request */
/*007*/ BYTE file;
#define SCCB_HWL_FILE_TYPE_1 0x01 /* Type 1 */
#define SCCB_HWL_FILE_SCSIBOOT 0x02 /* SCSI Boot Loader */
#define SCCB_HWL_FILE_CONFIG 0x03 /* Config */
/*008*/ FWORD resv1[2];
/*010*/ FWORD hwl; /* Pointer to HWL BK */
/*014*/ HWORD resv2;
/*016*/ BYTE asa; /* Archmode */
/*017*/ BYTE resv3;
/*018*/ DBLWRD asce; /* ASCE */
/*020*/ FWORD resv4[3];
/*02C*/ FWORD size; /* Length in 4K pages */
}
SCCB_HWL_BK;
/*-------------------------------------------------------------------*/
struct name2file
{
const char* name;
unsigned int file;
};
struct name2file n2flist[] =
{
{ "config", SCCB_HWL_FILE_CONFIG },
{ "scsiboot", SCCB_HWL_FILE_SCSIBOOT },
{ "type_1", SCCB_HWL_FILE_TYPE_1 },
#if 0
{ "netboot", 7 }, // Hercules implementation of PXE style netboot for OSA
#endif
{ NULL, 0 } // (end of list)
};
/*-------------------------------------------------------------------*/
static U64 scsi_lddev_wwpn [2]; // [0] = LOAD, [1] = DUMP
static U64 scsi_lddev_lun [2]; // [0] = LOAD, [1] = DUMP
static U32 scsi_lddev_prog [2]; // [0] = LOAD, [1] = DUMP
static U64 scsi_lddev_brlba [2]; // [0] = LOAD, [1] = DUMP
static BYTE* scsi_lddev_scpdata [2]; // [0] = LOAD, [1] = DUMP
static TID hwl_tid; /* Thread id of HW loader */
static char* hwl_fn [HWL_MAXFILETYPE]; /* Files by type */
#endif /* #ifndef _SCEHWL_C */
#endif /* defined( _FEATURE_HARDWARE_LOADER ) */
//-------------------------------------------------------------------
// ARCH_DEP() code
//-------------------------------------------------------------------
// ARCH_DEP (build-architecture / FEATURE-dependent) functions here.
// All BUILD architecture dependent (ARCH_DEP) function are compiled
// multiple times (once for each defined build architecture) and each
// time they are compiled with a different set of FEATURE_XXX defines
// appropriate for that architecture. Use #ifdef FEATURE_XXX guards
// to check whether the current BUILD architecture has that given
// feature #defined for it or not. WARNING: Do NOT use _FEATURE_XXX.
// The underscore feature #defines mean something else entirely. Only
// test for FEATURE_XXX. (WITHOUT the underscore)
//-------------------------------------------------------------------
#undef TBLTYP
#undef PTO_MASK
#undef PFRA_MASK
#undef TBLTO_MASK
#undef REGSEG_INV
#if __GEN_ARCH == 900 // (z/Arch)
#define TBLTYP DBLWRD /* Width of DAT table entry */
#define PTO_MASK ZSEGTAB_PTO /* Page Table Origin */
#define PFRA_MASK ZPGETAB_PFRA /* Page Frame Real Address Mask */
#define TBLTO_MASK REGTAB_TO /* Reg/Seg Table Origin Mask */
#define REGSEG_INV ZSEGTAB_I /* Invalid region/segment bit */
// Region Tables are basically higher level Segment tables, so the
// Region Invalid bit should be the same as the Segment Invalid bit.
CASSERT( REGTAB_I == ZSEGTAB_I, scescsi_c );
#else // (ESA/390) S/370 doesn't support FEATURE_HARDWARE_LOADER
#define TBLTYP FWORD /* Width of DAT table entry */
#define PTO_MASK SEGTAB_PTO /* Page Table Origin */
#define PFRA_MASK PAGETAB_PFRA /* Page Frame Real Address Mask */
#define TBLTO_MASK STD_STO /* Segment Table Origin Mask */
#define REGSEG_INV SEGTAB_INVALID /* Invalid segment bit */
#endif // __GEN_ARCH
static bool ARCH_DEP( load_pages )( CREG pto, int fd, U32 *pages )
{
TBLTYP* pte; /* Page Table Entry */
int pti; /* Page Table Entry iterator */
CREG pgo; /* Page Origin (i.e. PFRA) */
BYTE* page; /* Pointer to page in mainstor */
int rc; /* Return code from read() */
/* Remove bit definitions to form table origin */
pto &= PTO_MASK;
/* Keep loading file data into this page table's valid pages
until either the entire file has been loaded, or we run out
of page table entries or an abortive condition is detected.
*/
for (pti=0; *pages && pti < 256; pti++, pto += sizeof( pto ))
{
/* Abort if table entry is outside of main storage */
if (pto >= sysblk.mainsize)
{
// "%s is outside of main storage"
WRMSG( HHC00659, "E", "table" );
return false; // abort!
}
/* Point to table entry in main storage */
pte = (TBLTYP*)(sysblk.mainstor + pto);
/* Fetch this Page Table Entry */
FETCH_W( pgo, pte );
/* Process this entry if it's not invalid */
if (!(pgo & PAGETAB_INVALID))
{
/* Get Page Frame Real Address */
pgo &= PFRA_MASK;
/* Abort if page is outside of main storage */
if (pgo >= sysblk.mainsize)
{
// "%s is outside of main storage"
WRMSG( HHC00659, "E", "page" );
return false; // abort!
}
/* Get mainstor address of this page */
page = sysblk.mainstor + pgo;
/* Load one page's worth of file data into this page */
if ((rc = read( fd, page, STORAGE_KEY_PAGESIZE )) < 0)
{
// "I/O error on read(): rc=%d: \"%s\""
WRMSG( HHC00658, "E", rc, strerror( errno ));
return false; // abort!
}
/* Page successfully loaded; Decrement pages remaining */
(*pages)--;
/* Update page's referenced and changed Storage Key bits */
ARCH_DEP( or_storage_key )( pgo, (STORKEY_REF | STORKEY_CHANGE) );
}
}
/* Keep going if there are still pages remaining to be loaded */
return (*pages > 0) ? true : false;
}
static bool ARCH_DEP( walk_table )( CREG rto, int fd, U32 *pages, int tables )
{
TBLTYP* te; /* Pointer to Table Entry */
CREG to; /* Next Table's Origin */
U32 entries; /* Number of Table Entries */
U32 i; /* Table Entry Iterator */
bool keep_walking = true;
/* Tables have 2048 entries max. A table length
of 0 means 512 entries, 1 means 1024, etc. */
entries = ((rto & REGTAB_TL) + 1) * 512;
/* Remove bit definitions to form table origin */
rto &= TBLTO_MASK;
/* Walk trough all table entries to find valid entries */
for (i=0; keep_walking && i < entries; i++, rto += sizeof( rto ))
{
/* Point to table entry in main storage */
te = (TBLTYP*)(sysblk.mainstor + rto);
/* Fetch this Table Entry */
FETCH_W( to, te );
/* Process this entry if it's not invalid */
if (!(to & REGSEG_INV))
{
/* Walk the next level table if there's one to be walked.
Otherwise load next part of file into this table's pages.
*/
if ( ( to & REGTAB_TT ) != TT_SEGTAB )
keep_walking = ARCH_DEP( walk_table )( to, fd, pages, --tables );
else
keep_walking = ARCH_DEP( load_pages )( to, fd, pages );
}
}
return keep_walking;
}
#if defined( FEATURE_HARDWARE_LOADER )
/*-------------------------------------------------------------------*/
/* Function to load file to main storage */
/*-------------------------------------------------------------------*/
static void s390_hwl_loadfile ( SCCB_HWL_BK* hwl_bk ); // (fwd ref)
static void ARCH_DEP( hwl_loadfile )( SCCB_HWL_BK *hwl_bk )
{
U32 pages; /* Num pages to be loaded */
CREG asce; /* DAT Addr Space Ctl Elem */
int fd; /* fd of file to be loaded */
/* Open the file to be loaded */
if ((fd = open( hwl_fn[ hwl_bk->file ], O_RDONLY | O_BINARY )) < 0)
{
// "%s open error: %s"
WRMSG( HHC00650, "E", hwl_fn[ hwl_bk->file ], strerror( errno ));
return;
}
else
// "Loading %s"
WRMSG( HHC00651, "I", hwl_fn[ hwl_bk->file ]);
/* Retrieve number of pages to be loaded */
FETCH_FW( pages, hwl_bk->size );
/* Retrieve the ASCE to determine where in guest
storage that the file should be loaded into. */
FETCH_DW( asce, hwl_bk->asce );
/* Abort if ASCE points outside of main storage */
if (asce >= sysblk.mainsize)
{
// "%s is outside of main storage"
WRMSG( HHC00659, "E", "asce" );
close( fd );
return;
}
/* Load the file into guest storage */
switch (asce & ASCE_DT)
{
#if defined( FEATURE_001_ZARCH_INSTALLED_FACILITY )
case TT_R1TABL: ARCH_DEP( walk_table )( asce, fd, &pages, 3 ); break;
case TT_R2TABL: ARCH_DEP( walk_table )( asce, fd, &pages, 2 ); break;
case TT_R3TABL: ARCH_DEP( walk_table )( asce, fd, &pages, 1 ); break;
#endif
case TT_SEGTAB: ARCH_DEP( walk_table )( asce, fd, &pages, 0 ); break;
}
/* We're done. Close input file and return */
close( fd );
}
/*-------------------------------------------------------------------*/
/* Async thread to process service processor file load */
/*-------------------------------------------------------------------*/
static void* ARCH_DEP(hwl_thread)(void* arg)
{
SCCB_HWL_BK *hwl_bk = (SCCB_HWL_BK*) arg;
if(hwl_bk->file < HWL_MAXFILETYPE && hwl_fn[hwl_bk->file])
{
switch(hwl_bk->type) {
/* INFO request returns the required region size in 4K pages */
case SCCB_HWL_TYPE_INFO:
{
struct stat st;
if(!stat(hwl_fn[hwl_bk->file], &st) )
{
U32 size;
size = st.st_size;
size += 0x00000FFF;
size &= 0xFFFFF000;
size >>= 12;
STORE_FW(hwl_bk->size,size);
}
else
// "Hardware loader %s: %s"
WRMSG( HHC00652, "E", hwl_fn[ hwl_bk->file ], strerror( errno ));
}
break;
/* Load request will load the image into fixed virtual storage
the Segment Table Origin is listed in the hwl_bk */
case SCCB_HWL_TYPE_LOAD:
#if defined( FEATURE_001_ZARCH_INSTALLED_FACILITY )
if(!hwl_bk->asa)
s390_hwl_loadfile(hwl_bk);
else
#endif
ARCH_DEP(hwl_loadfile)(hwl_bk);
break;
}
}
else
// "Hardware loader file type %d not supported"
WRMSG( HHC00653, "E", hwl_bk->file );
hwl_tid = 0;
OBTAIN_INTLOCK(NULL);
sclp_attention(SCCB_EVD_TYPE_HWL);
RELEASE_INTLOCK(NULL);
return NULL;
}
/*-------------------------------------------------------------------*/
/* Function to process service processor file load */
/*-------------------------------------------------------------------*/
static int ARCH_DEP(hwl_request)(U32 sclp_command, SCCB_EVD_HDR *evd_hdr)
{
SCCB_HWL_BK *hwl_bk = (SCCB_HWL_BK*)(evd_hdr + 1);
static SCCB_HWL_BK static_hwl_bk;
static int hwl_pending;
if(sclp_command == SCLP_READ_EVENT_DATA)
{
int pending_req = hwl_pending;
/* Return no data if the hardware loader thread is still active */
if(hwl_tid)
return 0;
/* Update the hwl_bk copy in the SCCB */
if(hwl_pending)
*hwl_bk = static_hwl_bk;
/* Reset the pending flag */
hwl_pending = 0;
/* Return true if a request was pending */
return pending_req;
}
switch(hwl_bk->type) {
case SCCB_HWL_TYPE_INFO:
case SCCB_HWL_TYPE_LOAD:
/* Return error if the hwl thread is already active */
if( hwl_tid )
return -1;
/* Take a copy of the hwl_bk in the SCCB */
static_hwl_bk = *hwl_bk;
/* Reset pending flag */
hwl_pending = 0;
/* Create the hwl thread */
if( create_thread(&hwl_tid, &sysblk.detattr,
ARCH_DEP(hwl_thread), &static_hwl_bk, "hwl_thread") )
return -1;
/* Set pending flag */
hwl_pending = 1;
return 0;
default:
// "Unknown hardware loader request type %2.2X"
WRMSG( HHC00654, "E", hwl_bk->type );
return -1;
}
}
/*-------------------------------------------------------------------*/
/* Function to request service processor file load */
/*-------------------------------------------------------------------*/
void ARCH_DEP(sclp_hwl_request) (SCCB_HEADER *sccb)
{
SCCB_EVD_HDR *evd_hdr = (SCCB_EVD_HDR*)(sccb + 1);
SCCB_HWL_BK *hwl_bk = (SCCB_HWL_BK*)(evd_hdr + 1);
// "Hardware loader: %s request: SCCB = 0x%"PRIX64
WRMSG( HHC00661, "I",
SCCB_HWL_TYPE_INFO == hwl_bk->type ? "INFO" :
SCCB_HWL_TYPE_LOAD == hwl_bk->type ? "LOAD" : "unknown",
(BYTE*)sccb - (BYTE*)sysblk.mainstor );
if( ARCH_DEP(hwl_request)(SCLP_WRITE_EVENT_DATA, evd_hdr) )
{
/* Set response code X'0040' in SCCB header */
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_BACKOUT;
}
else
{
/* Set response code X'0020' in SCCB header */
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_COMPLETE;
}
/* Indicate Event Processed */
evd_hdr->flag |= SCCB_EVD_FLAG_PROC;
}
/*-------------------------------------------------------------------*/
/* Function to read service processor file load event data */
/*-------------------------------------------------------------------*/
void ARCH_DEP(sclp_hwl_event) (SCCB_HEADER *sccb)
{
SCCB_EVD_HDR *evd_hdr = (SCCB_EVD_HDR*)(sccb + 1);
U16 sccb_len;
U16 evd_len;
if( ARCH_DEP(hwl_request)(SCLP_READ_EVENT_DATA, evd_hdr) )
{
/* Zero all fields */
memset (evd_hdr, 0, sizeof(SCCB_EVD_HDR));
/* Set length in event header */
evd_len = sizeof(SCCB_EVD_HDR) + sizeof(SCCB_HWL_BK);
STORE_HW(evd_hdr->totlen, evd_len);
/* Set type in event header */
evd_hdr->type = SCCB_EVD_TYPE_HWL;
/* Update SCCB length field if variable request */
if (sccb->type & SCCB_TYPE_VARIABLE)
{
FETCH_HW(evd_len, evd_hdr->totlen);
sccb_len = evd_len + sizeof(SCCB_HEADER);
STORE_HW(sccb->length, sccb_len);
sccb->type &= ~SCCB_TYPE_VARIABLE;
}
/* Set response code X'0020' in SCCB header */
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_COMPLETE;
}
}
/*-------------------------------------------------------------------*/
/* Function to request service processor store status info */
/*-------------------------------------------------------------------*/
void ARCH_DEP(sclp_sdias_request) (SCCB_HEADER *sccb)
{
SCCB_EVD_HDR *evd_hdr = (SCCB_EVD_HDR*)(sccb + 1);
#if 0
if( ARCH_DEP(sdias_request)(SCLP_WRITE_EVENT_DATA, evd_hdr) )
{
/* Set response code X'0040' in SCCB header */
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_BACKOUT;
}
else
{
/* Set response code X'0020' in SCCB header */
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_COMPLETE;
}
#else
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_BACKOUT;
#endif
/* Indicate Event Processed */
evd_hdr->flag |= SCCB_EVD_FLAG_PROC;
}
/*-------------------------------------------------------------------*/
/* Function to read service processor store status info event data */
/*-------------------------------------------------------------------*/
void ARCH_DEP(sclp_sdias_event) (SCCB_HEADER *sccb)
{
#if 0
SCCB_EVD_HDR *evd_hdr = (SCCB_EVD_HDR*)(sccb + 1);
U16 sccb_len;
U16 evd_len;
if( ARCH_DEP(sdias_request)(SCLP_READ_EVENT_DATA, evd_hdr) )
{
/* Zero all fields */
memset (evd_hdr, 0, sizeof(SCCB_EVD_HDR));
/* Set length in event header */
evd_len = sizeof(SCCB_EVD_HDR) + sizeof(SCCB_HWL_BK);
STORE_HW(evd_hdr->totlen, evd_len);
/* Set type in event header */
evd_hdr->type = SCCB_EVD_TYPE_HWL;
/* Update SCCB length field if variable request */
if (sccb->type & SCCB_TYPE_VARIABLE)
{
FETCH_HW(evd_len, evd_hdr->totlen);
sccb_len = evd_len + sizeof(SCCB_HEADER);
STORE_HW(sccb->length, sccb_len);
sccb->type &= ~SCCB_TYPE_VARIABLE;
}
/* Set response code X'0020' in SCCB header */
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_COMPLETE;
}
#else
sccb->reas = SCCB_REAS_NONE;
sccb->resp = SCCB_RESP_BACKOUT;
#endif
}
#endif /* defined( FEATURE_HARDWARE_LOADER ) */
#if defined( _FEATURE_HARDWARE_LOADER )
static BYTE *sdias_hsa;
static U32 sdias_size;
/*-------------------------------------------------------------------*/
/* Function to clear store status information in the HSA */
/*-------------------------------------------------------------------*/
void ARCH_DEP(sdias_store_status_clear)(REGS *regs)
{
UNREFERENCED(regs);
sdias_size = 0;
if(sdias_hsa)
free(sdias_hsa);
sdias_hsa = NULL;
}
/*-------------------------------------------------------------------*/
/* Function to save store status information in the HSA */
/*-------------------------------------------------------------------*/
void ARCH_DEP(sdias_store_status)(REGS *regs)
{
UNREFERENCED(regs);
sdias_size = sysblk.mainsize < SDIAS_STORE_STATUS_MAXSIZE
? sysblk.mainsize : SDIAS_STORE_STATUS_MAXSIZE;
if(!sdias_hsa)
sdias_hsa = malloc(SDIAS_STORE_STATUS_MAXSIZE);
if(sdias_hsa)
memcpy(sdias_hsa,sysblk.mainstor,sdias_size);
else
// "Store Status save to HSA failed"
WRMSG( HHC00655, "E" );
}
#endif /* defined( _FEATURE_HARDWARE_LOADER ) */
#if defined( _FEATURE_SCSI_IPL )
/*-------------------------------------------------------------------*/
/* Function to store boot parameters in main storage */
/*-------------------------------------------------------------------*/
int ARCH_DEP(store_boot_parms) (DEVBLK *dev, int ldind)
{
PSA *psa;
SCSI_BOOT_BK *sb_bk;
BYTE *xml;
int scp_len;
if(sysblk.mainsize < (BOOT_PARM_ADDR + 0x1000))
return -1;
psa = (PSA*)sysblk.mainstor;
STORE_DW(psa->iplccw2,BOOT_PARM_ADDR);
sb_bk = (SCSI_BOOT_BK*)(sysblk.mainstor + BOOT_PARM_ADDR);
memset(sb_bk,0x00,0x1000);
sb_bk->ldind = ldind ? SCSI_BOOT_LDIND_DUMP : SCSI_BOOT_LDIND_LOAD;
STORE_HW(sb_bk->devno,dev->devnum);
STORE_DW(sb_bk->wwpn,scsi_lddev_wwpn[ldind]);
STORE_DW(sb_bk->lun,scsi_lddev_lun[ldind]);
STORE_FW(sb_bk->prog,scsi_lddev_prog[ldind]);
STORE_DW(sb_bk->brlba,scsi_lddev_brlba[ldind]);
if(scsi_lddev_scpdata[ldind])
{
scp_len = strlen((char*)scsi_lddev_scpdata[ldind]);
if(scp_len > 256)
scp_len = 256; // Sanity check
STORE_FW(sb_bk->scp_len,scp_len);
memcpy((BYTE*)(sb_bk+1), scsi_lddev_scpdata[ldind], scp_len);
}
else
scp_len = 0;
scp_len += 7;
scp_len &= ~7;
STORE_FW(sb_bk->xml_off,sizeof(SCSI_BOOT_BK) + scp_len);
STORE_FW(sb_bk->scp_off,sizeof(SCSI_BOOT_BK) + scp_len - 8); // ZZ:???
xml = (BYTE*)(sb_bk+1) + scp_len;
xml += sprintf((char*)xml, "<?xml version=\"1.0\" encoding =\"UTF-8\"?>\n" );
xml += sprintf((char*)xml, "<eServer_ipl_script version=\"1.0\">\n" );
xml += sprintf((char*)xml, "<type>%s</type>\n", ldind ? "dump" : "ipl" );
xml += sprintf((char*)xml, "<ipl_control_section id=\"herculesipl-1\">\n" );
xml += sprintf((char*)xml, "<ipl_platform_loader>\n" );
xml += sprintf((char*)xml, "<fcp_ipl>\n" );
xml += sprintf((char*)xml, "<devno>0x%4.4X</devno>\n", dev->devnum);
xml += sprintf((char*)xml, "<wwpn>0x%16.16"PRIX64"</wwpn>\n", scsi_lddev_wwpn[ldind]);
xml += sprintf((char*)xml, "<lun>0x%16.16"PRIX64"</lun>\n", scsi_lddev_lun[ldind]);
xml += sprintf((char*)xml, "<boot_program_selector>0x%8.8X</boot_program_selector>\n", scsi_lddev_prog[ldind]);
xml += sprintf((char*)xml, "<br_lba>0x%16.16"PRIX64"</br_lba>\n", scsi_lddev_brlba[ldind]);
xml += sprintf((char*)xml, "</fcp_ipl>\n" );
xml += sprintf((char*)xml, "</ipl_platform_loader>\n" );
if(scp_len)
{
xml += sprintf((char*)xml, "<system_control_program>\n" );
xml += sprintf((char*)xml, "<parameter_string>%s</parameter_string>\n", scsi_lddev_scpdata[ldind]);
xml += sprintf((char*)xml, "</system_control_program>\n" );
}
xml += sprintf((char*)xml, "</ipl_control_section>\n" );
xml += sprintf((char*)xml, "</eServer_ipl_script>\n" );
return 0;
}
/*-------------------------------------------------------------------*/
/* Function to BOOT bootstrap loader */
/*-------------------------------------------------------------------*/
int ARCH_DEP(load_boot) (DEVBLK *dev, int cpu, int clear, int ldind)
{
REGS *regs = sysblk.regs[cpu];
int bootfile;
bootfile = support_boot(dev);
if(bootfile < 0 || !hwl_fn[bootfile])
return -1; // Should not occur, has been validated.
if (ARCH_DEP(common_load_begin) (cpu, clear) != 0)
return -1;
if( ARCH_DEP(load_main) (hwl_fn[bootfile], 0, 0) < 0)
{
// "Cannot load bootstrap loader %s: %s"
WRMSG( HHC00656, "E", hwl_fn[ bootfile ], strerror( errno ));
return -1;
}
sysblk.main_clear = sysblk.xpnd_clear = 0;
if( ARCH_DEP(store_boot_parms)(dev, ldind) )
return -1;
return ARCH_DEP(common_load_finish)(regs);
}
#endif /* defined( _FEATURE_SCSI_IPL ) */
/*-------------------------------------------------------------------*/
/* (delineates ARCH_DEP from non-arch_dep) */
/*-------------------------------------------------------------------*/
#if !defined( _GEN_ARCH )
#if defined( _ARCH_NUM_1 )
#define _GEN_ARCH _ARCH_NUM_1
#include "scescsi.c"
#endif
#if defined( _ARCH_NUM_2 )
#undef _GEN_ARCH
#define _GEN_ARCH _ARCH_NUM_2
#include "scescsi.c"
#endif
/*-------------------------------------------------------------------*/
/* (delineates ARCH_DEP from non-arch_dep) */
/*-------------------------------------------------------------------*/
/*-------------------------------------------------------------------*/
/* non-ARCH_DEP section: compiled only ONCE after last arch built */
/*-------------------------------------------------------------------*/
/* Note: the last architecture has been built so the normal non- */
/* underscore FEATURE values are now #defined according to the */
/* LAST built architecture just built (usually zarch = 900). This */
/* means from this point onward (to the end of file) you should */
/* ONLY be testing the underscore _FEATURE values to see if the */
/* given feature was defined for *ANY* of the build architectures. */
/*-------------------------------------------------------------------*/
#if defined( _FEATURE_HARDWARE_LOADER )
static const char *file2name(unsigned int file)
{
struct name2file *ntf;
static char name[8];
for(ntf = n2flist; ntf->name && ntf->file != file; ntf++);
if(ntf->name)
return ntf->name;
MSGBUF(name,"type%u",file);
return name;
}
/*-------------------------------------------------------------------*/
/* Command to specify the bootstrap loader */
/*-------------------------------------------------------------------*/
int hwldr_cmd(int argc, char *argv[], char *cmdline)
{
struct name2file *ntf;
unsigned int file;
char c;
int n;
UNREFERENCED(cmdline);
if(argc > 1)
{
for(ntf = n2flist; ntf->name && strcasecmp(ntf->name,argv[1]); ntf++);
file = ntf->file;
if(!(!ntf->name
&& !strncasecmp("type",argv[1],4)
&& isdigit((unsigned char)*(argv[1]+4))
&& sscanf(argv[1]+4, "%u%c", &file, &c) == 1
&& file < HWL_MAXFILETYPE))
{
if(!ntf->name)
{
// "Invalid file %s"
WRMSG( HHC00657, "E", argv[1] );
return -1;
}
}
if(argc > 2)
{
for(n = 2; n < argc && file < HWL_MAXFILETYPE; n++, file++)
{
if(hwl_fn[file])
free(hwl_fn[file]);
if(strcasecmp(argv[n],"none") && strlen(argv[n]))
hwl_fn[file] = strdup(argv[n]);
else
hwl_fn[file] = NULL;
}
}
else
{
// "%-8s %s"
WRMSG( HHC00660, "I", file2name( file ), hwl_fn[ file ]);
return 0;
}
}
else
for(file = 0; file < HWL_MAXFILETYPE; file++)
if(hwl_fn[file])
// "%-8s %s"
WRMSG( HHC00660, "I", file2name( file ), hwl_fn[ file ]);
return 0;
}
#endif /* defined( _FEATURE_HARDWARE_LOADER ) */
#if defined( _FEATURE_SCSI_IPL )
/*-------------------------------------------------------------------*/
/* loaddev / dumpdev commands to specify boot parameters */
/*-------------------------------------------------------------------*/
int lddev_cmd( int argc, char* argv[], char* cmdline )
{
int i;
char c;
int ldind; /* LOAD/DUMP indicator: [0] = LOAD, [1] = DUMP */
UNREFERENCED(cmdline);
// [0] = LOAD, [1] = DUMP
ldind = ((islower((unsigned char)*argv[0]) ? toupper((unsigned char)*argv[0]) : *argv[0] ) == 'L')
? 0 : 1;
if(argc > 1)
{
// process all command line options here
for(i = 1; i < argc; i++)
{
if(!strcasecmp("portname",argv[i]) && (i+1) < argc)
{
if(sscanf(argv[++i], "%"SCNx64"%c", &scsi_lddev_wwpn[ldind], &c) != 1)
// "Invalid %s"
WRMSG( HHC00670, "E", "PORTNAME" );
continue;
}
else if(!strcasecmp("lun",argv[i]) && (i+1) < argc)
{
if(sscanf(argv[++i], "%"SCNx64"%c", &scsi_lddev_lun[ldind], &c) != 1)
// "Invalid %s"
WRMSG( HHC00670, "E", "LUN" );
continue;
}
else if(!strcasecmp("bootprog",argv[i]) && (i+1) < argc)
{
if(sscanf(argv[++i], "%"SCNx32"%c", &scsi_lddev_prog[ldind], &c) != 1)
// "Invalid %s"
WRMSG( HHC00670, "E", "BOOTPROG" );
continue;
}
else if(!strcasecmp("br_lba",argv[i]) && (i+1) < argc)
{
if(sscanf(argv[++i], "%"SCNx64"%c", &scsi_lddev_brlba[ldind], &c) != 1)
// "Invalid %s"
WRMSG( HHC00670, "E", "BR_LBA" );
continue;
}
else if(!strcasecmp("scpdata",argv[i]) && (i+1) < argc)
{
if(scsi_lddev_scpdata[ldind])
free(scsi_lddev_scpdata[ldind]);
if(strlen(argv[i+1]))
scsi_lddev_scpdata[ldind] = (BYTE*)strdup(argv[++i]);
else
scsi_lddev_scpdata[ldind] = NULL;
continue;
}
else
{
// "Invalid option %s"
WRMSG( HHC00671, "E", argv[i] );
return -1;
}
}
}
else
{
// "portname %16.16"PRIx64
// "lun %16.16"PRIx64
// "bootprog %8.8x"
// "br_lba %16.16"PRIx64
// "scpdata %s"
if (scsi_lddev_wwpn [ ldind ]) WRMSG( HHC00680, "I", scsi_lddev_wwpn [ ldind ] );
if (scsi_lddev_lun [ ldind ]) WRMSG( HHC00681, "I", scsi_lddev_lun [ ldind ] );
if (scsi_lddev_prog [ ldind ]) WRMSG( HHC00682, "I", scsi_lddev_prog [ ldind ] );
if (scsi_lddev_brlba [ ldind ]) WRMSG( HHC00683, "I", scsi_lddev_brlba [ ldind ] );
if (scsi_lddev_scpdata[ ldind ]) WRMSG( HHC00684, "I", scsi_lddev_scpdata[ ldind ] );
}
return 0;
}
/*-------------------------------------------------------------------*/
/* Function to validate if the bootfile */
/*-------------------------------------------------------------------*/
static inline int validate_boot(unsigned int file)
{
return ((file < HWL_MAXFILETYPE && hwl_fn[file]) ? (int) file : -1);
}
/*-------------------------------------------------------------------*/
/* Function to determine if device supports the boot process */
/*-------------------------------------------------------------------*/
int support_boot(DEVBLK *dev)
{
U32 dt, ct;
ct = dev->devid[1] << 16 | dev->devid[2] << 8 | dev->devid[3];
dt = dev->devid[4] << 16 | dev->devid[5] << 8 | dev->devid[6];
switch(ct) {
#if 0
case 0x173101:
switch(dt) {
case 0x173201: // OSA
return validate_boot(7);
}
break;
#endif
case 0x173103:
switch(dt) {
case 0x173203: // FCP
return validate_boot(SCCB_HWL_FILE_SCSIBOOT);
}
break;
}
return -1;
}
/*-------------------------------------------------------------------*/
/* Function to BOOT bootstrap loader */
/*-------------------------------------------------------------------*/
int load_boot (DEVBLK *dev, int cpu, int clear, int ldind)
{
switch(sysblk.arch_mode) {
#if defined( _370 )
case ARCH_370_IDX:
return s370_load_boot (dev, cpu, clear, ldind);
#endif
#if defined( _390 )
case ARCH_390_IDX:
return s390_load_boot (dev, cpu, clear, ldind);
#endif
#if defined( _900 )
case ARCH_900_IDX:
/* z/Arch always starts out in ESA390 mode */
return s390_load_boot (dev, cpu, clear, ldind);
#endif
default: CRASH();
}
return -1;
}
#endif /* defined( _FEATURE_SCSI_IPL ) */
#endif /* !defined( _GEN_ARCH ) */
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