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/*
* Grammar for the PCIE-AER injection.
*
* Copyright (c) 2009 by Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
*
* Based on mce.y of mce-inject, which is written by Andi Kleen
* <andi.kleen@intel.com>.
*
* 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; version 2 of the
* License.
*/
%{
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include "aer.h"
static struct aer_error_inj aerr;
static void init(void);
%}
%union {
int num;
char *str;
}
%token AER DOMAIN BUS DEV FN PCI_ID UNCOR_STATUS COR_STATUS HEADER_LOG
%token <num> TRAIN DLP POISON_TLP FCP COMP_TIME COMP_ABORT UNX_COMP RX_OVER
%token <num> MALF_TLP ECRC UNSUP
%token <num> RCVR BAD_TLP BAD_DLLP REP_ROLL REP_TIMER
%token <num> SYMBOL NUMBER
%token <str> PCI_ID_STR
%type<num> uncor_status_list uncor_status cor_status_list cor_status
%%
input: /* empty */
| input aer_start aer { submit_aer(&aerr); }
;
aer_start: AER { init(); }
;
aer: aer_term
| aer aer_term
;
aer_term: UNCOR_STATUS uncor_status_list { aerr.uncor_status = $2; }
| COR_STATUS cor_status_list { aerr.cor_status = $2; }
| DOMAIN NUMBER BUS NUMBER DEV NUMBER FN NUMBER { aerr.domain = $2;
aerr.bus = $4;
aerr.dev = $6;
aerr.fn = $8; }
| BUS NUMBER DEV NUMBER FN NUMBER { aerr.domain = 0;
aerr.bus = $2;
aerr.dev = $4;
aerr.fn = $6; }
| PCI_ID PCI_ID_STR { parse_pci_id($2, &aerr);
free($2); }
| HEADER_LOG NUMBER NUMBER NUMBER NUMBER { aerr.header_log0 = $2;
aerr.header_log1 = $3;
aerr.header_log2 = $4;
aerr.header_log3 = $5; }
;
uncor_status_list: /* empty */ { $$ = 0; }
| uncor_status_list uncor_status { $$ = $1 | $2; }
;
uncor_status: TRAIN | DLP | POISON_TLP | FCP | COMP_TIME | COMP_ABORT
| UNX_COMP | RX_OVER | MALF_TLP | ECRC | UNSUP | NUMBER
;
cor_status_list: /* empty */ { $$ = 0; }
| cor_status_list cor_status { $$ = $1 | $2; }
;
cor_status: RCVR | BAD_TLP | BAD_DLLP | REP_ROLL | REP_TIMER | NUMBER
;
%%
static void init(void)
{
init_aer(&aerr);
}
int parse_pci_id(const char *str, struct aer_error_inj *aerr)
{
int cnt;
cnt = sscanf(str, "%04hx:%02hhx:%02hhx.%01hhx",
&aerr->domain, &aerr->bus, &aerr->dev, &aerr->fn);
if (cnt != 4) {
cnt = sscanf(str, "%02hhx:%02hhx.%01hhx",
&aerr->bus, &aerr->dev, &aerr->fn);
if (cnt == 3)
aerr->domain = 0;
else
return 1;
}
return 0;
}
void yyerror(char const *msg, ...)
{
va_list ap;
va_start(ap, msg);
fprintf(stderr, "%s:%d: ", filename, yylineno);
vfprintf(stderr, msg, ap);
fputc('\n', stderr);
va_end(ap);
exit(1);
}
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