patch-2.2.14 linux/drivers/net/sk98lin/skvpd.c
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- Lines: 1199
- Date:
Tue Jan 4 10:12:18 2000
- Orig file:
v2.2.13/linux/drivers/net/sk98lin/skvpd.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.2.13/linux/drivers/net/sk98lin/skvpd.c linux/drivers/net/sk98lin/skvpd.c
@@ -0,0 +1,1198 @@
+/******************************************************************************
+ *
+ * Name: skvpd.c
+ * Project: GEnesis, PCI Gigabit Ethernet Adapter
+ * Version: $Revision: 1.24 $
+ * Date: $Date: 1999/03/11 14:25:49 $
+ * Purpose: Shared software to read and write VPD data
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * (C)Copyright 1998,1999 SysKonnect,
+ * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
+ *
+ * See the file "skge.c" for further information.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The information in this file is provided "AS IS" without warranty.
+ *
+ ******************************************************************************/
+
+/******************************************************************************
+ *
+ * History:
+ *
+ * $Log: skvpd.c,v $
+ * Revision 1.24 1999/03/11 14:25:49 malthoff
+ * Replace __STDC__ with SK_KR_PROTO.
+ *
+ * Revision 1.23 1999/01/11 15:13:11 gklug
+ * fix: syntax error
+ *
+ * Revision 1.22 1998/10/30 06:41:15 gklug
+ * rmv: WARNING
+ *
+ * Revision 1.21 1998/10/29 07:15:14 gklug
+ * fix: Write Stream function needs verify.
+ *
+ * Revision 1.20 1998/10/28 18:05:08 gklug
+ * chg: no DEBUG in VpdMayWrite
+ *
+ * Revision 1.19 1998/10/28 15:56:11 gklug
+ * fix: Return len at end of ReadStream
+ * fix: Write even less than 4 bytes correctly
+ *
+ * Revision 1.18 1998/10/28 09:00:47 gklug
+ * fix: unreferenced local vars
+ *
+ * Revision 1.17 1998/10/28 08:25:45 gklug
+ * fix: WARNING
+ *
+ * Revision 1.16 1998/10/28 08:17:30 gklug
+ * fix: typo
+ *
+ * Revision 1.15 1998/10/28 07:50:32 gklug
+ * fix: typo
+ *
+ * Revision 1.14 1998/10/28 07:20:38 gklug
+ * chg: Interface functions to use IoC as parameter as well
+ * fix: VpdRead/WriteDWord now return SK_U32
+ * chg: VPD_IN/OUT names conform to SK_IN/OUT
+ * add: usage of VPD_IN/OUT8 macros
+ * add: VpdRead/Write Stream functions to r/w a stream of data
+ * fix: VpdTransferBlock swapped illeagal
+ * add: VpdMayWrite
+ *
+ * Revision 1.13 1998/10/22 10:02:37 gklug
+ * fix: SysKonnectFileId typo
+ *
+ * Revision 1.12 1998/10/20 10:01:01 gklug
+ * fix: parameter to SkOsGetTime
+ *
+ * Revision 1.11 1998/10/15 12:51:48 malthoff
+ * Remove unrequired parameter p in vpd_setup_para().
+ *
+ * Revision 1.10 1998/10/08 14:52:43 malthoff
+ * Remove CvsId by SysKonnectFileId.
+ *
+ * Revision 1.9 1998/09/16 07:33:52 malthoff
+ * remove memcmp() by SK_MEMCMP and
+ * memcpy() by SK_MEMCPY() to be
+ * independant from the 'C' Standard Library.
+ *
+ * Revision 1.8 1998/08/19 12:52:35 malthoff
+ * compiler fix: use SK_VPD_KEY instead of S_VPD.
+ *
+ * Revision 1.7 1998/08/19 08:14:01 gklug
+ * fix: remove struct keyword as much as possible from the c-code (see CCC)
+ *
+ * Revision 1.6 1998/08/18 13:03:58 gklug
+ * SkOsGetTime now returns SK_U64
+ *
+ * Revision 1.5 1998/08/18 08:17:29 malthoff
+ * Ensure we issue a VPD read in vpd_read_dword().
+ * Discard all VPD keywords other than Vx or Yx, where
+ * x is '0..9' or 'A..Z'.
+ *
+ * Revision 1.4 1998/07/03 14:52:19 malthoff
+ * Add category SK_DBGCAT_FATAL to some debug macros.
+ * bug fix: correct the keyword name check in vpd_write().
+ *
+ * Revision 1.3 1998/06/26 11:16:53 malthoff
+ * Correct the modified File Identifier.
+ *
+ * Revision 1.2 1998/06/26 11:13:43 malthoff
+ * Modify the File Identifier.
+ *
+ * Revision 1.1 1998/06/19 14:11:08 malthoff
+ * Created, Tests with AIX were performed successfully
+ *
+ *
+ ******************************************************************************/
+
+/*
+ Please refer skvpd.txt for infomation how to include this module
+ */
+static const char SysKonnectFileId[] =
+ "@(#)$Id: skvpd.c,v 1.24 1999/03/11 14:25:49 malthoff Exp $ (C) SK" ;
+
+#include "h/skdrv1st.h"
+#include "h/sktypes.h"
+#include "h/skdebug.h"
+#include "h/skdrv2nd.h"
+
+/*
+ * Static functions
+ */
+#ifndef SK_KR_PROTO
+static SK_VPD_PARA *vpd_find_para(
+ SK_AC *pAC,
+ char *key,
+ SK_VPD_PARA *p) ;
+#else /* SK_KR_PROTO */
+static SK_VPD_PARA *vpd_find_para() ;
+#endif /* SK_KR_PROTO */
+
+/*
+ * waits for a completetion of a VPD transfer
+ * The VPD transfer must complete within SK_TICKS_PER_SEC/16
+ *
+ * returns 0: success, transfer completes
+ * error exit(9) with a error message
+ */
+static int VpdWait(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC, /* IO Context */
+int event) /* event to wait for (VPD_READ / VPD_write) completion*/
+{
+ SK_U64 start_time ;
+ SK_U16 state ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd wait for %s\n",event?"Write":"Read")) ;
+ start_time = SkOsGetTime(pAC) ;
+ do {
+ if (SkOsGetTime(pAC) - start_time > SK_TICKS_PER_SEC/16) {
+ VPD_STOP(pAC,IoC) ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,
+ SK_DBGCAT_FATAL|SK_DBGCAT_ERR,
+ ("ERROR:vpd wait timeout\n")) ;
+ return(1) ;
+ }
+ VPD_IN16(pAC,IoC,PCI_VPD_ADR_REG,&state) ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("state = %x, event %x\n",state,event)) ;
+ } while((int)(state & PCI_VPD_FLAG) == event) ;
+
+ return(0) ;
+}
+
+
+/*
+ * Read the dword at address 'addr' from the VPD EEPROM.
+ *
+ * Needed Time: MIN 1,3 ms MAX 2,6 ms
+ *
+ * Note: The DWord is returned in the endianess of the machine the routine
+ * is running on.
+ *
+ * Returns the data read.
+ */
+SK_U32 VpdReadDWord(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC, /* IO Context */
+int addr) /* VPD address */
+{
+ SK_U32 Rtv ;
+
+ /* start VPD read */
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd read dword at 0x%x\n",addr)) ;
+ addr &= ~VPD_WRITE ; /* ensure the R/W bit is set to read */
+
+ VPD_OUT16(pAC,IoC,PCI_VPD_ADR_REG, (SK_U16) addr) ;
+
+ /* ignore return code here */
+ (void)VpdWait(pAC,IoC,VPD_READ) ;
+
+ /* Don't swap here, it's a data stream of bytes */
+ Rtv = 0 ;
+
+ VPD_IN32(pAC,IoC,PCI_VPD_DAT_REG,&Rtv) ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd read dword data = 0x%x\n",Rtv)) ;
+ return (Rtv) ;
+}
+
+/*
+ Write the dword 'data' at address 'addr' into the VPD EEPROM, and
+ verify that the data is written.
+
+ Needed Time:
+
+. MIN MAX
+. -------------------------------------------------------------------
+. write 1.8 ms 3.6 ms
+. internal write cyles 0.7 ms 7.0 ms
+. -------------------------------------------------------------------
+. over all program time 2.5 ms 10.6 ms
+. read 1.3 ms 2.6 ms
+. -------------------------------------------------------------------
+. over all 3.8 ms 13.2 ms
+.
+
+
+ Returns 0: success
+ 1: error, I2C transfer does not terminate
+ 2: error, data verify error
+
+ */
+static int VpdWriteDWord(
+SK_AC *pAC, /* pAC pointer */
+SK_IOC IoC, /* IO Context */
+int addr, /* VPD address */
+SK_U32 data) /* VPD data to write */
+{
+ /* start VPD write */
+ /* Don't swap here, it's a data stream of bytes */
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd write dword at addr 0x%x, data = 0x%x\n",addr,data)) ;
+ VPD_OUT32(pAC,IoC,PCI_VPD_DAT_REG, (SK_U32)data) ;
+ /* But do it here */
+ addr |= VPD_WRITE ;
+
+ VPD_OUT16(pAC,IoC,PCI_VPD_ADR_REG, (SK_U16)(addr | VPD_WRITE)) ;
+
+ /* this may take up to 10,6 ms */
+ if (VpdWait(pAC,IoC,VPD_WRITE)) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("Write Timed Out\n")) ;
+ return(1) ;
+ } ;
+
+ /* verify data */
+ if (VpdReadDWord(pAC,IoC,addr) != data) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR|SK_DBGCAT_FATAL,
+ ("Data Verify Error\n")) ;
+ return(2) ;
+ }
+ return(0) ;
+}
+
+/*
+ * Read one Stream of 'len' bytes of VPD data, starting at 'addr' from
+ * or to the I2C EEPROM.
+ *
+ * Returns number of bytes read / written.
+ */
+static int VpdWriteStream(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC, /* IO Context */
+char *buf, /* data buffer */
+int Addr, /* VPD start address */
+int Len) /* number of bytes to read / to write */
+{
+ int i ;
+ int j ;
+ SK_U16 AdrReg ;
+ int Rtv ;
+ SK_U8 * pComp; /* Compare pointer */
+ SK_U8 Data ; /* Input Data for Compare */
+
+ /* Init Compare Pointer */
+ pComp = (SK_U8 *) buf;
+
+ for (i=0; i < Len; i ++, buf++) {
+ if ((i%sizeof(SK_U32)) == 0) {
+ /*
+ * At the begin of each cycle read the Data Reg
+ * So it is initialized even if only a few bytes
+ * are written.
+ */
+ AdrReg = (SK_U16) Addr ;
+ AdrReg &= ~VPD_WRITE ; /* READ operation */
+
+ VPD_OUT16(pAC,IoC,PCI_VPD_ADR_REG, AdrReg) ;
+
+ /* ignore return code here */
+ Rtv = VpdWait(pAC,IoC,VPD_READ) ;
+ if (Rtv != 0) {
+ return(i) ;
+ }
+ }
+
+ /* Write current Byte */
+ VPD_OUT8(pAC,IoC,PCI_VPD_DAT_REG+(i%sizeof(SK_U32)),
+ *(SK_U8*)buf) ;
+
+ if (((i%sizeof(SK_U32)) == 3) || (i == (Len - 1))) {
+ /* New Address needs to be written to VPD_ADDR reg */
+ AdrReg = (SK_U16) Addr ;
+ Addr += sizeof(SK_U32);
+ AdrReg |= VPD_WRITE ; /* WRITE operation */
+
+ VPD_OUT16(pAC,IoC,PCI_VPD_ADR_REG, AdrReg) ;
+
+ /* Wait for termination */
+ Rtv = VpdWait(pAC,IoC,VPD_WRITE) ;
+ if (Rtv != 0) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("Write Timed Out\n")) ;
+ return(i - (i%sizeof(SK_U32))) ;
+ }
+
+ /*
+ * Now re-read to verify
+ */
+ AdrReg &= ~VPD_WRITE ; /* READ operation */
+
+ VPD_OUT16(pAC,IoC,PCI_VPD_ADR_REG, AdrReg) ;
+
+ /* Wait for termination */
+ Rtv = VpdWait(pAC,IoC,VPD_READ) ;
+ if (Rtv != 0) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("Verify Timed Out\n")) ;
+ return(i - (i%sizeof(SK_U32))) ;
+ }
+
+ for (j = 0; j <= (int) (i%sizeof(SK_U32));
+ j ++, pComp ++ ) {
+ VPD_IN8(pAC,IoC,PCI_VPD_DAT_REG+j, &Data) ;
+ if (Data != *pComp) {
+ /* Verify Error */
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,
+ SK_DBGCAT_ERR,
+ ("WriteStream Verify Error\n"));
+ return(i - (i%sizeof(SK_U32)) + j);
+ }
+ }
+
+ }
+ }
+
+ return(Len);
+}
+
+
+/*
+ * Read one Stream of 'len' bytes of VPD data, starting at 'addr' from
+ * or to the I2C EEPROM.
+ *
+ * Returns number of bytes read / written.
+ */
+static int VpdReadStream(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC, /* IO Context */
+char *buf, /* data buffer */
+int Addr, /* VPD start address */
+int Len) /* number of bytes to read / to write */
+{
+ int i ;
+ SK_U16 AdrReg ;
+ int Rtv ;
+
+ for (i=0; i < Len; i ++, buf++) {
+ if ((i%sizeof(SK_U32)) == 0) {
+ /* New Address needs to be written to VPD_ADDR reg */
+ AdrReg = (SK_U16) Addr ;
+ Addr += sizeof(SK_U32);
+ AdrReg &= ~VPD_WRITE ; /* READ operation */
+
+ VPD_OUT16(pAC,IoC,PCI_VPD_ADR_REG, AdrReg) ;
+
+ /* ignore return code here */
+ Rtv = VpdWait(pAC,IoC,VPD_READ) ;
+ if (Rtv != 0) {
+ return(i) ;
+ }
+
+ }
+ VPD_IN8(pAC,IoC,PCI_VPD_DAT_REG+(i%sizeof(SK_U32)),
+ (SK_U8 *)buf) ;
+ }
+
+ return(Len) ;
+}
+
+/*
+ * Read ore wirtes 'len' bytes of VPD data, starting at 'addr' from
+ * or to the I2C EEPROM.
+ *
+ * Returns number of bytes read / written.
+ */
+static int VpdTransferBlock(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC, /* IO Context */
+char *buf, /* data buffer */
+int addr, /* VPD start address */
+int len, /* number of bytes to read / to write */
+int dir) /* transfer direction may be VPD_READ or VPD_WRITE */
+{
+ int Rtv ; /* Return value */
+ int vpd_rom_size ;
+ SK_U32 our_reg2 ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd %s block, addr = 0x%x, len = %d\n",
+ dir?"write":"read",addr,len)) ;
+
+ if (len == 0)
+ return (0) ;
+
+ VPD_IN32(pAC,IoC,PCI_OUR_REG_2,&our_reg2) ;
+ vpd_rom_size = 256 << ((our_reg2 & PCI_VPD_ROM_SZ) >> 14);
+ if (addr > vpd_rom_size - 4) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR|SK_DBGCAT_FATAL,
+ ("Address error: 0x%x, exp. < 0x%x\n",
+ addr, vpd_rom_size - 4)) ;
+ return (0) ;
+ }
+ if (addr + len > vpd_rom_size) {
+ len = vpd_rom_size - addr ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("Warning: len was cut to %d\n",len)) ;
+ }
+
+ if (dir == VPD_READ) {
+ Rtv = VpdReadStream(pAC, IoC, buf, addr, len);
+ } else {
+ Rtv = VpdWriteStream(pAC, IoC, buf, addr, len);
+ }
+
+ return (Rtv) ;
+}
+
+#ifdef SKDIAG
+
+/*
+ * Read 'len' bytes of VPD data, starting at 'addr'.
+ *
+ * Returns number of bytes read.
+ */
+int VpdReadBlock(
+SK_AC *pAC, /* pAC pointer */
+SK_IOC IoC, /* IO Context */
+char *buf, /* buffer were the data should be stored */
+int addr, /* start reading at the VPD address */
+int len) /* number of bytes to read */
+{
+ return (VpdTransferBlock(pAC, IoC, buf, addr, len, VPD_READ)) ;
+}
+
+/*
+ * Write 'len' bytes of *but to the VPD EEPROM, starting at 'addr'.
+ *
+ * Returns number of bytes writes.
+ */
+int VpdWriteBlock(
+SK_AC *pAC, /* pAC pointer */
+SK_IOC IoC, /* IO Context */
+char *buf, /* buffer, holds the data to write */
+int addr, /* start writing at the VPD address */
+int len) /* number of bytes to write */
+{
+ return (VpdTransferBlock(pAC, IoC, buf, addr, len, VPD_WRITE)) ;
+}
+#endif /* SKDIAG */
+
+/*
+ * (re)initialize the VPD buffer
+ *
+ * Reads the VPD data from the EEPROM into the VPD buffer.
+ * Get the remaining read only and read / write space.
+ *
+ * return 0: success
+ * 1: fatal VPD error
+ */
+static int VpdInit(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC) /* IO Context */
+{
+ SK_VPD_PARA *r, rp ; /* RW or RV */
+ int i ;
+ unsigned char x ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_INIT,("VpdInit .. ")) ;
+ /* read the VPD data into the VPD buffer */
+ if (VpdTransferBlock(pAC,IoC,pAC->vpd.vpd_buf,0,VPD_SIZE,VPD_READ)
+ != VPD_SIZE) {
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("Block Read Error\n")) ;
+ return(1) ;
+ }
+
+ /* find the end tag of the RO area */
+ if (!(r = vpd_find_para(pAC,VPD_RV,&rp))) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("Encoding Error: RV Tag not found\n")) ;
+ return (1) ;
+ }
+ if (r->p_val + r->p_len > pAC->vpd.vpd_buf + VPD_SIZE/2) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("Encoding Error: Invalid VPD struct size\n")) ;
+ return (1) ;
+ }
+ pAC->vpd.v.vpd_free_ro = r->p_len - 1 ;
+
+ /* test the checksum */
+ for (i = 0, x = 0; (unsigned)i<=(unsigned)VPD_SIZE/2 - r->p_len; i++) {
+ x += pAC->vpd.vpd_buf[i] ;
+ }
+ if (x != 0) {
+ /* checksum error */
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("VPD Checksum Error\n")) ;
+ return (1) ;
+ }
+
+ /* find and check the end tag of the RW area */
+ if (!(r = vpd_find_para(pAC,VPD_RW,&rp))) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("Encoding Error: RV Tag not found\n")) ;
+ return (1) ;
+ }
+ if (r->p_val < pAC->vpd.vpd_buf + VPD_SIZE/2) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("Encoding Error: Invalid VPD struct size\n")) ;
+ return (1) ;
+ }
+ pAC->vpd.v.vpd_free_rw = r->p_len ;
+
+ /* everything seems to be ok */
+ pAC->vpd.v.vpd_status |= VPD_VALID ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_INIT,
+ ("done. Free RO = %d, Free RW = %d\n",
+ pAC->vpd.v.vpd_free_ro, pAC->vpd.v.vpd_free_rw)) ;
+
+ return(0) ;
+}
+
+/*
+ * find the Keyword 'key' in the VPD buffer and fills the
+ * parameter sturct 'p' with it's values
+ *
+ * returns *p success
+ * 0: parameter was not found or VPD encoding error
+ */
+static SK_VPD_PARA *vpd_find_para(
+SK_AC *pAC, /* common data base */
+char *key, /* keyword to find (e.g. "MN") */
+SK_VPD_PARA *p) /* parameter description struct */
+{
+ char *v ; /* points to vpd buffer */
+ int max ; /* Maximum Number of Iterations */
+
+ v = pAC->vpd.vpd_buf ;
+ max = 128 ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd find para %s .. ",key)) ;
+
+ /* check mandatory resource type ID string (Product Name) */
+ if (*v != (char) RES_ID) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("Error: 0x%x missing\n",RES_ID)) ;
+ return (0) ;
+ }
+
+ if (strcmp(key,VPD_NAME) == 0) {
+ p->p_len = VPD_GET_RES_LEN(v) ;
+ p->p_val = VPD_GET_VAL(v) ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("found, len = %d\n",p->p_len)) ;
+ return(p) ;
+ }
+
+ v += 3 + VPD_GET_RES_LEN(v) + 3 ;
+ for ( ; ; ) {
+ if (SK_MEMCMP(key,v,2) == 0) {
+ p->p_len = VPD_GET_VPD_LEN(v) ;
+ p->p_val = VPD_GET_VAL(v) ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("found, len = %d\n",p->p_len)) ;
+ return (p) ;
+ }
+
+ /* exit when reaching the "RW" Tag or the maximum of itera. */
+ max-- ;
+ if (SK_MEMCMP(VPD_RW,v,2) == 0 || max == 0) {
+ break ;
+ }
+
+ if (SK_MEMCMP(VPD_RV,v,2) == 0) {
+ v += 3 + VPD_GET_VPD_LEN(v) + 3 ; /* skip VPD-W */
+ } else {
+ v += 3 + VPD_GET_VPD_LEN(v) ;
+ }
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("scanning '%c%c' len = %d\n",v[0],v[1],v[2])) ;
+ }
+
+#ifdef DEBUG
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,("not found\n")) ;
+ if (max == 0) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("Key/Len Encoding error\n")) ;
+ }
+#endif
+ return (0) ;
+}
+
+/*
+ * Move 'n' bytes. Begin with the last byte if 'n' is > 0,
+ * Start with the last byte if n is < 0.
+ *
+ * returns nothing
+ */
+static void vpd_move_para(
+char *start, /* start of memory block */
+char *end, /* end of memory block to move */
+int n) /* number of bytes the memory block has to be moved */
+{
+ char *p ;
+ int i ; /* number of byte copied */
+
+ if (n == 0)
+ return ;
+
+ i = end - start + 1 ;
+ if (n < 0) {
+ p = start + n ;
+ while (i != 0) {
+ *p++ = *start++ ;
+ i-- ;
+ }
+ } else {
+ p = end + n ;
+ while (i != 0) {
+ *p-- = *end-- ;
+ i-- ;
+ }
+ }
+}
+
+/*
+ * setup the VPD keyword 'key' at 'ip'.
+ *
+ * returns nothing
+ */
+static void vpd_insert_key(
+char *key, /* keyword to insert */
+char *buf, /* buffer with the keyword value */
+int len, /* length of the value string */
+char *ip) /* inseration point */
+{
+ SK_VPD_KEY *p ;
+
+ p = (SK_VPD_KEY *) ip ;
+ p->p_key[0] = key[0] ;
+ p->p_key[1] = key[1] ;
+ p->p_len = (unsigned char) len ;
+ SK_MEMCPY(&p->p_val,buf,len) ;
+}
+
+/*
+ * Setup the VPD end tag "RV" / "RW".
+ * Also correct the remaining space variables vpd_free_ro / vpd_free_rw.
+ *
+ * returns 0: success
+ * 1: encoding error
+ */
+static int vpd_mod_endtag(
+SK_AC *pAC, /* common data base */
+char *etp) /* end pointer input position */
+{
+ SK_VPD_KEY *p ;
+ unsigned char x ;
+ int i ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd modify endtag at 0x%x = '%c%c'\n",etp,etp[0],etp[1])) ;
+
+ p = (SK_VPD_KEY *) etp ;
+
+ if (p->p_key[0] != 'R' || (p->p_key[1] != 'V' && p->p_key[1] != 'W')) {
+ /* something wrong here, encoding error */
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR | SK_DBGCAT_FATAL,
+ ("Encoding Error: invalid end tag\n")) ;
+ return(1) ;
+ }
+ if (etp > pAC->vpd.vpd_buf + VPD_SIZE/2) {
+ /* create "RW" tag */
+ p->p_len = (unsigned char)(pAC->vpd.vpd_buf+VPD_SIZE-etp-3-1) ;
+ pAC->vpd.v.vpd_free_rw = (int) p->p_len ;
+ i = pAC->vpd.v.vpd_free_rw ;
+ etp += 3 ;
+ } else {
+ /* create "RV" tag */
+ p->p_len = (unsigned char)(pAC->vpd.vpd_buf+VPD_SIZE/2-etp-3) ;
+ pAC->vpd.v.vpd_free_ro = (int) p->p_len - 1 ;
+
+ /* setup checksum */
+ for (i = 0, x = 0; i < VPD_SIZE/2 - p->p_len; i++) {
+ x += pAC->vpd.vpd_buf[i] ;
+ }
+ p->p_val = (char) 0 - x ;
+ i = pAC->vpd.v.vpd_free_ro ;
+ etp += 4 ;
+ }
+ while (i) {
+ *etp++ = 0x00 ;
+ i-- ;
+ }
+
+ return (0) ;
+}
+
+/*
+ * Insert a VPD keyword into the VPD buffer.
+ *
+ * The keyword 'key' is inserted at the position 'ip' in the
+ * VPD buffer.
+ * The keywords behind the input position will
+ * be moved. The VPD end tag "RV" or "RW" is generated again.
+ *
+ * returns 0: success
+ * 2: value string was cut
+ * 4: VPD full, keyword was not written
+ * 6: fatal VPD error
+ *
+ */
+int VpdSetupPara(
+SK_AC *pAC, /* common data base */
+char *key, /* keyword to insert */
+char *buf, /* buffer with the keyword value */
+int len, /* length of the keyword value */
+int type, /* VPD_RO_KEY or VPD_RW_KEY */
+int op) /* operation to do: ADD_KEY or OWR_KEY */
+{
+ SK_VPD_PARA vp ;
+ char *etp ; /* end tag position */
+ int free ; /* remaining space in selected area */
+ char *ip ; /* input position inside the VPD buffer */
+ int rtv ; /* return code */
+ int head ; /* additional haeder bytes to move */
+ int found ; /* additinoal bytes if the keyword was found */
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("vpd setup para key = %s, val = %s\n",key,buf)) ;
+
+ rtv = 0 ;
+ ip = 0 ;
+ if (type == VPD_RW_KEY) {
+ /* end tag is "RW" */
+ free = pAC->vpd.v.vpd_free_rw ;
+ etp = pAC->vpd.vpd_buf + (VPD_SIZE - free - 1 - 3) ;
+ } else {
+ /* end tag is "RV" */
+ free = pAC->vpd.v.vpd_free_ro ;
+ etp = pAC->vpd.vpd_buf + (VPD_SIZE/2 - free - 4) ;
+ }
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("Free RO = %d, Free RW = %d\n",
+ pAC->vpd.v.vpd_free_ro, pAC->vpd.v.vpd_free_rw)) ;
+
+ head = 0 ;
+ found = 0 ;
+ if (op == OWR_KEY) {
+ if (vpd_find_para(pAC,key,&vp)) {
+ found = 3 ;
+ ip = vp.p_val - 3 ;
+ free += vp.p_len + 3 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("Overwrite Key\n")) ;
+ } else {
+ op = ADD_KEY ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_CTRL,
+ ("Add Key\n")) ;
+ }
+ }
+ if (op == ADD_KEY) {
+ ip = etp ;
+ vp.p_len = 0 ;
+ head = 3 ;
+ }
+
+ if (len + 3 > free) {
+ if (free < 7) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("VPD Buffer Overflow, keyword not written\n"));
+ return (4) ;
+ }
+ /* cut it again */
+ len = free - 3 ;
+ rtv = 2 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("VPD Buffer Full, Keyword was cut\n")) ;
+ }
+
+ vpd_move_para(ip + vp.p_len + found, etp+2, len-vp.p_len+head) ;
+ vpd_insert_key(key, buf, len, ip) ;
+ if (vpd_mod_endtag(pAC, etp + len - vp.p_len + head)) {
+ pAC->vpd.v.vpd_status &= ~VPD_VALID ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("VPD Encoding Error\n")) ;
+ return(6) ;
+ }
+
+ return (rtv) ;
+}
+
+
+/*
+ * Read the contents of the VPD EEPROM and copy it to the
+ * VPD buffer if not already done.
+ *
+ * return: A pointer to the vpd_status structure. The structure contain
+ * this fields.
+ */
+SK_VPD_STATUS *VpdStat(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC) /* IO Context */
+{
+ if (!(pAC->vpd.v.vpd_status & VPD_VALID)) {
+ (void)VpdInit(pAC,IoC) ;
+ }
+ return(&pAC->vpd.v) ;
+}
+
+
+/*
+ * Read the contents of the VPD EEPROM and copy it to the VPD
+ * buffer if not already done.
+ * Scan the VPD buffer for VPD keywords and create the VPD
+ * keyword list by copying the keywords to 'buf', all after
+ * each other and terminated with a '\0'.
+ *
+ * Exceptions: o The Resource Type ID String (product name) is called "Name"
+ * o The VPD end tags 'RV' and 'RW' are not listed
+ *
+ * The number of copied keywords is counted in 'elements'.
+ *
+ * returns 0: success
+ * 2: buffer overfull, one or more keywords are missing
+ * 6: fatal VPD error
+ *
+ * example values after returning:
+ *
+ * buf = "Name\0PN\0EC\0MN\0SN\0CP\0VF\0VL\0YA\0"
+ * *len = 30
+ * *elements = 9
+ */
+int VpdKeys(
+SK_AC *pAC, /* common data base */
+SK_IOC IoC, /* IO Context */
+char *buf, /* buffer where to copy the keywords */
+int *len, /* buffer length */
+int *elements) /* number of keywords returned */
+{
+ char *v ;
+ int n ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_RX,("list vpd keys .. ")) ;
+ *elements = 0 ;
+ if (!(pAC->vpd.v.vpd_status & VPD_VALID)) {
+ if (VpdInit(pAC,IoC) != 0 ) {
+ *len = 0 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("VPD Init Error, terminated\n")) ;
+ return(6) ;
+ }
+ }
+
+ if ((signed)strlen(VPD_NAME) + 1 <= *len) {
+ v = pAC->vpd.vpd_buf ;
+ strcpy(buf,VPD_NAME) ;
+ n = strlen(VPD_NAME) + 1 ;
+ buf += n ;
+ *elements = 1 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_RX,
+ ("'%c%c' ",v[0],v[1])) ;
+ } else {
+ *len = 0 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("buffer overflow\n")) ;
+ return(2) ;
+ }
+
+ v += 3 + VPD_GET_RES_LEN(v) + 3 ;
+ for ( ; ; ) {
+ /* exit when reaching the "RW" Tag */
+ if (SK_MEMCMP(VPD_RW,v,2) == 0) {
+ break ;
+ }
+
+ if (SK_MEMCMP(VPD_RV,v,2) == 0) {
+ v += 3 + VPD_GET_VPD_LEN(v) + 3 ; /* skip VPD-W */
+ continue ;
+ }
+
+ if (n+3 <= *len) {
+ SK_MEMCPY(buf,v,2) ;
+ buf += 2 ;
+ *buf++ = '\0' ;
+ n += 3 ;
+ v += 3 + VPD_GET_VPD_LEN(v) ;
+ *elements += 1 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_RX,
+ ("'%c%c' ",v[0],v[1])) ;
+ } else {
+ *len = n ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("buffer overflow\n")) ;
+ return (2) ;
+ }
+ }
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_RX,("\n")) ;
+ *len = n ;
+ return(0) ;
+}
+
+
+/*
+ * Read the contents of the VPD EEPROM and copy it to the
+ * VPD buffer if not already done. Search for the VPD keyword
+ * 'key' and copy its value to 'buf'. Add a terminating '\0'.
+ * If the value does not fit into the buffer cut it after
+ * 'len' - 1 bytes.
+ *
+ * returns 0: success
+ * 1: keyword not found
+ * 2: value string was cut
+ * 3: VPD transfer timeout
+ * 6: fatal VPD error
+ */
+int VpdRead(
+SK_AC *pAC, /* common data base */
+SK_IOC IoC, /* IO Context */
+char *key, /* keyword to read (e.g. "MN") */
+char *buf, /* buffer where to copy the keyword value */
+int *len) /* buffer length */
+{
+ SK_VPD_PARA *p, vp ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_RX,("vpd read %s .. ",key)) ;
+ if (!(pAC->vpd.v.vpd_status & VPD_VALID)) {
+ if (VpdInit(pAC,IoC) != 0 ) {
+ *len = 0 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("vpd init error\n")) ;
+ return(6) ;
+ }
+ }
+
+ if ((p = vpd_find_para(pAC,key,&vp))) {
+ if (p->p_len > (*(unsigned *)len)-1) {
+ p->p_len = *len - 1 ;
+ }
+ SK_MEMCPY(buf,p->p_val,p->p_len) ;
+ buf[p->p_len] = '\0' ;
+ *len = p->p_len ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_RX,
+ ("%c%c%c%c.., len = %d\n",
+ buf[0],buf[1],buf[2],buf[3],*len)) ;
+ } else {
+ *len = 0 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,("not found\n")) ;
+ return (1) ;
+ }
+ return (0) ;
+}
+
+
+/*
+ * Check whether a given key may be written
+ *
+ * returns
+ * SK_TRUE Yes it may be written
+ * SK_FALSE No it may be written
+ */
+SK_BOOL VpdMayWrite(
+char *key) /* keyword to write (allowed values "Yx", "Vx") */
+{
+ if ((*key != 'Y' && *key != 'V') ||
+ key[1] < '0' || key[1] > 'Z' ||
+ (key[1] > '9' && key[1] < 'A') || strlen(key) != 2) {
+
+ return (SK_FALSE) ;
+ }
+ return (SK_TRUE) ;
+}
+
+/*
+ * Read the contents of the VPD EEPROM and copy it to the VPD
+ * buffer if not already done. Insert/overwrite the keyword 'key'
+ * in the VPD buffer. Cut the keyword value if it does not fit
+ * into the VPD read / write area.
+ *
+ * returns 0: success
+ * 2: value string was cut
+ * 3: VPD transfer timeout
+ * 4: VPD full, keyword was not written
+ * 5: keyword cannot be written
+ * 6: fatal VPD error
+ */
+int VpdWrite(
+SK_AC *pAC, /* common data base */
+SK_IOC IoC, /* IO Context */
+char *key, /* keyword to write (allowed values "Yx", "Vx") */
+char *buf) /* buffer where the keyword value can be read from */
+{
+ int len ; /* lenght of the keyword to write */
+ int rtv ; /* return code */
+ int rtv2 ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_TX,
+ ("vpd write %s = %s\n",key,buf)) ;
+
+ if ((*key != 'Y' && *key != 'V') ||
+ key[1] < '0' || key[1] > 'Z' ||
+ (key[1] > '9' && key[1] < 'A') || strlen(key) != 2) {
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("illegal key tag, keyword not written\n")) ;
+ return (5) ;
+ }
+
+ if (!(pAC->vpd.v.vpd_status & VPD_VALID)) {
+ if (VpdInit(pAC,IoC) != 0 ) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("vpd init error\n")) ;
+ return(6) ;
+ }
+ }
+
+ rtv = 0 ;
+ len = strlen(buf) ;
+ if (len > VPD_MAX_LEN) {
+ /* cut it */
+ len = VPD_MAX_LEN ;
+ rtv = 2 ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("keyword to long, cut after %d bytes\n",VPD_MAX_LEN)) ;
+ }
+ if ((rtv2 = VpdSetupPara(pAC,key,buf,len,VPD_RW_KEY,OWR_KEY)) != 0) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("vpd write error\n")) ;
+ return(rtv2) ;
+ }
+
+ return (rtv) ;
+}
+
+/*
+ * Read the contents of the VPD EEPROM and copy it to the
+ * VPD buffer if not already done. Remove the VPD keyword
+ * 'key' from the VPD buffer.
+ * Only the keywords in the read/write area can be deleted.
+ * Keywords in the read only area cannot be deleted.
+ *
+ * returns 0: success, keyword was removed
+ * 1: keyword not found
+ * 5: keyword cannot be deleted
+ * 6: fatal VPD error
+ */
+int VpdDelete(
+SK_AC *pAC, /* common data base */
+SK_IOC IoC, /* IO Context */
+char *key) /* keyword to read (e.g. "MN") */
+{
+ SK_VPD_PARA *p, vp ;
+ char *etp ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_TX,("vpd delete key %s\n",key)) ;
+ if (!(pAC->vpd.v.vpd_status & VPD_VALID)) {
+ if (VpdInit(pAC,IoC) != 0 ) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("vpd init error\n")) ;
+ return(6) ;
+ }
+ }
+
+ if ((p = vpd_find_para(pAC,key,&vp))) {
+ if (p->p_val < pAC->vpd.vpd_buf + VPD_SIZE/2) {
+ /* try to delete read only keyword */
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("cannot delete RO keyword\n")) ;
+ return (5) ;
+ }
+
+ etp = pAC->vpd.vpd_buf + (VPD_SIZE-pAC->vpd.v.vpd_free_rw-1-3) ;
+
+ vpd_move_para(vp.p_val+vp.p_len, etp+2,
+ - ((int)(vp.p_len + 3))) ;
+ if (vpd_mod_endtag(pAC, etp - vp.p_len - 3)) {
+ pAC->vpd.v.vpd_status &= ~VPD_VALID ;
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("vpd encoding error\n")) ;
+ return(6) ;
+ }
+ } else {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("keyword not found\n")) ;
+ return (1) ;
+ }
+
+ return (0) ;
+}
+
+/*
+ * If the VPD buffer contains valid data write the VPD
+ * read/write area back to the VPD EEPROM.
+ *
+ * returns 0: success
+ * 3: VPD transfer timeout
+ */
+int VpdUpdate(
+SK_AC *pAC, /* Adapters context */
+SK_IOC IoC) /* IO Context */
+{
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_TX,("vpd update .. ")) ;
+ if (pAC->vpd.v.vpd_status & VPD_VALID) {
+ if (VpdTransferBlock(pAC,IoC,pAC->vpd.vpd_buf + VPD_SIZE/2,
+ VPD_SIZE/2, VPD_SIZE/2, VPD_WRITE) != VPD_SIZE/2) {
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("transfer timed out\n")) ;
+ return(3) ;
+ }
+ }
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_TX,("done\n")) ;
+ return (0) ;
+}
+
+
+
+/*
+ * Read the contents of the VPD EEPROM and copy it to the VPD buffer
+ * if not already done. If the keyword "VF" is not present it will be
+ * created and the error log message will be stored to this keyword.
+ * If "VF" is not present the error log message will be stored to the
+ * keyword "VL". "VL" will created or overwritten if "VF" is present.
+ * The VPD read/write area is saved to the VPD EEPROM.
+ *
+ * returns nothing, errors will be ignored.
+ */
+void VpdErrLog(
+SK_AC *pAC, /* common data base */
+SK_IOC IoC, /* IO Context */
+char *msg) /* error log message */
+{
+ SK_VPD_PARA *v, vf ; /* VF */
+ int len ;
+
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_TX,
+ ("vpd error log msg %s\n",msg)) ;
+ if (!(pAC->vpd.v.vpd_status & VPD_VALID)) {
+ if (VpdInit(pAC,IoC) != 0 ) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_ERR,
+ ("vpd init error\n")) ;
+ return ;
+ }
+ }
+
+ len = strlen(msg) ;
+ if (len > VPD_MAX_LEN) {
+ /* cut it */
+ len = VPD_MAX_LEN ;
+ }
+ if ((v = vpd_find_para(pAC,VPD_VF,&vf))) {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_TX,("overwrite VL\n")) ;
+ (void)VpdSetupPara(pAC,VPD_VL,msg,len,VPD_RW_KEY,OWR_KEY) ;
+ } else {
+ SK_DBG_MSG(pAC,SK_DBGMOD_VPD,SK_DBGCAT_TX,("write VF\n")) ;
+ (void)VpdSetupPara(pAC,VPD_VF,msg,len,VPD_RW_KEY,ADD_KEY) ;
+ }
+
+ (void)VpdUpdate(pAC,IoC) ;
+}
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)