n2piupc_biterr.h revision 3299:8139b10ae6b7
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#ifndef _N2PIUPC_BITERR_H 28#define _N2PIUPC_BITERR_H 29 30#pragma ident "%Z%%M% %I% %E% SMI" 31 32/* 33 * "Virtual register" definitions for the bit error performance counters. 34 * 35 * The N2 PIU presents two bit error counters. Bit 63 on the first counter 36 * serves as an enable for all bit error counters. Bit 62 serves as a clear 37 * for all the bit error counters. 38 * 39 * Busstat doesn't play well with a register that has counters, enable and 40 * clear, so this module presents to the rest of the driver and to busstat a 41 * new layered set of register interfaces. 42 * 43 * These are: 44 * SW_N2PIU_BITERR_CNT1_DATA Biterr counter 1 data (readonly) 45 * Maps directly to HW biterr 46 * counter 1. Returns data for 47 * bad_dllps, bad_tlps, 48 * phys_rcvr_errs 49 * 50 * SW_N2PIU_BITERR_CNT2_DATA Biterr counter 2 data (readonly) 51 * Maps to HW biterr counter 2, but 52 * offers evt select of individual 53 * lanes 0-7 or all lanes together 54 * 55 * SW_N2PIU_BITERR_CLR Setting bit 62 here clears all biterr 56 * counters (write-only) 57 * 58 * SW_N2PIU_BITERR_SEL Bit 63 is overall biterr enable. 59 * Bits 0-3 are event select for counter 2 60 * (read-write) 61 * 62 * Note: each is assigned an offset similar to the offset of real performance 63 * counter registers. Offsets for these registers extend beyond the real reg 64 * set. 65 */ 66 67#ifdef __cplusplus 68extern "C" { 69#endif 70 71#include <sys/sunddi.h> 72 73/* SW abstractions for the BITERR counters. */ 74 75/* Select register. Select enable for all biterr ctrs, and PIC3 events. */ 76#define SW_N2PIU_BITERR_SEL HVIO_N2PIU_PERFREG_NUM_REGS 77 78/* Clear register. This zeros out all biterr ctrs. */ 79#define SW_N2PIU_BITERR_CLR (HVIO_N2PIU_PERFREG_NUM_REGS + 1) 80 81/* Biterr counter 1. Same as in the PRM. */ 82#define SW_N2PIU_BITERR_CNT1_DATA (HVIO_N2PIU_PERFREG_NUM_REGS + 2) 83 84/* 85 * Biterr counter 2. Reports errors for all lanes, or for any individual lane. 86 * Select what to report with the SELect register above. Enabled only if the 87 * enable for all biterr counters is enabled. 88 */ 89#define SW_N2PIU_BITERR_CNT2_DATA (HVIO_N2PIU_PERFREG_NUM_REGS + 3) 90 91/* Biterr counter abstraction functions. */ 92extern int n2piupc_biterr_attach(void **); 93extern void n2piupc_biterr_detach(void *); 94extern int n2piupc_biterr_write(n2piupc_t *n2piupc_p, int regid, uint64_t data); 95extern int n2piupc_biterr_read(n2piupc_t *n2piupc_p, int regid, uint64_t *data); 96 97#ifdef __cplusplus 98} 99#endif 100 101#endif /* _N2PIUPC_BITERR_H */ 102