1820df7a2d
Host ATM Research Platform (HARP), Network Computing Services, Inc. This software was developed with the support of the Defense Advanced Research Projects Agency (DARPA).
271 lines
6.3 KiB
C
271 lines
6.3 KiB
C
/*
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $Id: eni_if.c,v 1.6 1998/08/26 23:28:53 mks Exp $
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*
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*/
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/*
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* Efficient ENI Adapter Support
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* -----------------------------
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*
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* Network interface layer support
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*
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*/
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#ifndef lint
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static char *RCSid = "@(#) $Id: eni_if.c,v 1.6 1998/08/26 23:28:53 mks Exp $";
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#endif
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#include <netatm/kern_include.h>
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#include <dev/hea/eni_stats.h>
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#include <dev/hea/eni.h>
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#include <dev/hea/eni_suni.h>
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#include <dev/hea/eni_var.h>
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static void eni_get_stats __P((Eni_unit *));
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/*
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* SUNI statistics counters take one of three forms:
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* single byte value (0x0 - 0xff)
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* two byte value (0x0 - 0xffff)
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* two + 1/2 (three) byte value
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* (0x0 - 0x0fffff)
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*/
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#define READ_ONE(x) ( (eup->eu_suni[(x)] & 0xff) )
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#define READ_TWO(x) ( (eup->eu_suni[(x)+1] & 0xff) << 8 | \
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(eup->eu_suni[(x)] & 0xff) )
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#define READ_THREE(x) ( (eup->eu_suni[(x)+2] & 0xf) << 16 | \
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(eup->eu_suni[(x)+1] & 0xff) << 8 | \
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(eup->eu_suni[(x)] & 0xff) )
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/*
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* Do an initial read of the error counters without saving them.
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* In effect, this will "zero" our idea of the number of errors
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* which have occurred since the driver was loaded.
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*
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* Arguments:
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* eup pointer to per unit structure
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*
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* Returns:
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* none
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*
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*/
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void
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eni_zero_stats ( eup )
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Eni_unit *eup;
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{
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int val;
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/*
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* Write the SUNI master control register which
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* will cause all the statistics counters to be
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* loaded.
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*/
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eup->eu_suni[SUNI_MASTER_REG] = eup->eu_suni[SUNI_MASTER_REG];
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/*
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* Delay to allow for counter load time...
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*/
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DELAY ( SUNI_DELAY );
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/*
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* Statistics counters contain the number of events
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* since the last time the counter was read.
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*/
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val = READ_TWO ( SUNI_SECT_BIP_REG ); /* oc3_sect_bip8 */
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val = READ_TWO ( SUNI_PATH_BIP_REG ); /* oc3_path_bip8 */
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val = READ_THREE ( SUNI_LINE_BIP_REG ); /* oc3_line_bip24 */
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val = READ_THREE ( SUNI_LINE_FEBE_REG ); /* oc3_line_febe */
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val = READ_TWO ( SUNI_PATH_FEBE_REG ); /* oc3_path_febe */
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val = READ_ONE ( SUNI_HECS_REG ); /* oc3_hec_corr */
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val = READ_ONE ( SUNI_UHECS_REG ); /* oc3_hec_uncorr */
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}
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/*
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* Retrieve SUNI stats
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*
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* Arguments:
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* eup pointer to per unit structure
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*
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* Returns:
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* none
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*
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*/
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static void
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eni_get_stats ( eup )
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Eni_unit *eup;
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{
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/*
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* Write the SUNI master control register which
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* will cause all the statistics counters to be
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* loaded.
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*/
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eup->eu_suni[SUNI_MASTER_REG] = eup->eu_suni[SUNI_MASTER_REG];
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/*
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* Delay to allow for counter load time...
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*/
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DELAY ( 10 );
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/*
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* Statistics counters contain the number of events
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* since the last time the counter was read.
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*/
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eup->eu_stats.eni_st_oc3.oc3_sect_bip8 +=
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READ_TWO ( SUNI_SECT_BIP_REG );
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eup->eu_stats.eni_st_oc3.oc3_path_bip8 +=
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READ_TWO ( SUNI_PATH_BIP_REG );
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eup->eu_stats.eni_st_oc3.oc3_line_bip24 +=
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READ_THREE ( SUNI_LINE_BIP_REG );
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eup->eu_stats.eni_st_oc3.oc3_line_febe +=
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READ_THREE ( SUNI_LINE_FEBE_REG );
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eup->eu_stats.eni_st_oc3.oc3_path_febe +=
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READ_TWO ( SUNI_PATH_FEBE_REG );
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eup->eu_stats.eni_st_oc3.oc3_hec_corr +=
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READ_ONE ( SUNI_HECS_REG );
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eup->eu_stats.eni_st_oc3.oc3_hec_uncorr +=
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READ_ONE ( SUNI_UHECS_REG );
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}
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/*
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* Handle netatm core service interface ioctl requests
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*
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* Called at splnet.
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*
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* Arguments:
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* code ioctl function (sub)code
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* data data to/from ioctl
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* arg optional code-specific argument
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*
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* Returns:
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* 0 request processed successfully
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* error request failed - reason code
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*
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*/
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int
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eni_atm_ioctl ( code, data, arg )
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int code;
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caddr_t data;
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caddr_t arg;
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{
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struct atminfreq *aip = (struct atminfreq *)data;
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struct atm_pif *pip = (struct atm_pif *)arg;
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Eni_unit *eup = (Eni_unit *)pip;
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caddr_t buf = aip->air_buf_addr;
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struct air_vinfo_rsp *avr;
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int count, len, buf_len = aip->air_buf_len;
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int err = 0;
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char ifname[2*IFNAMSIZ];
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ATM_DEBUG2("eni_atm_ioctl: code=%d, opcode=%d\n",
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code, aip->air_opcode );
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switch ( aip->air_opcode ) {
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case AIOCS_INF_VST:
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/*
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* Get vendor statistics
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*/
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if ( eup == NULL )
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return ( ENXIO );
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sprintf ( ifname, "%s%d", pip->pif_name, pip->pif_unit );
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/*
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* Cast response structure onto user's buffer
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*/
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avr = (struct air_vinfo_rsp *)buf;
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/*
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* How large is the response structure
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*/
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len = sizeof(struct air_vinfo_rsp);
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/*
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* Sanity check - enough room for response structure?
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*/
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if ( buf_len < len )
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return ( ENOSPC );
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/*
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* Copy interface name into response structure
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*/
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if ( err = copyout ( ifname, avr->avsp_intf, IFNAMSIZ ) )
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break;
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/*
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* Advance the buffer address and decrement the size
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*/
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buf += len;
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buf_len -= len;
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/*
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* Get the vendor stats (SUNI) from the hardware
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*/
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eni_get_stats ( eup );
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/*
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* Stick as much of it as we have room for
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* into the response
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*/
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count = MIN ( sizeof(Eni_stats), buf_len );
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/*
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* Copy stats into user's buffer. Return value is
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* amount of data copied.
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*/
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if ( err = copyout ((void *)&eup->eu_stats, buf,
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count))
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break;
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buf += count;
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buf_len -= count;
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if ( count < sizeof(Eni_stats) )
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err = ENOSPC;
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/*
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* Record amount we're returning as vendor info...
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*/
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if (err = copyout(&count, &avr->avsp_len, sizeof(int)))
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break;
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/*
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* Update the reply pointers and length
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*/
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aip->air_buf_addr = buf;
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aip->air_buf_len = buf_len;
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break;
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default:
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err = ENOSYS; /* Operation not supported */
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break;
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}
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return ( err );
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}
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