xref: /titanic_51/usr/src/uts/sun4v/io/n2piupc/n2piupc_biterr.h (revision ea1a228c80597366447774aa1988868492330eb5)
1*ea1a228cSschwartz /*
2*ea1a228cSschwartz  * CDDL HEADER START
3*ea1a228cSschwartz  *
4*ea1a228cSschwartz  * The contents of this file are subject to the terms of the
5*ea1a228cSschwartz  * Common Development and Distribution License (the "License").
6*ea1a228cSschwartz  * You may not use this file except in compliance with the License.
7*ea1a228cSschwartz  *
8*ea1a228cSschwartz  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*ea1a228cSschwartz  * or http://www.opensolaris.org/os/licensing.
10*ea1a228cSschwartz  * See the License for the specific language governing permissions
11*ea1a228cSschwartz  * and limitations under the License.
12*ea1a228cSschwartz  *
13*ea1a228cSschwartz  * When distributing Covered Code, include this CDDL HEADER in each
14*ea1a228cSschwartz  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*ea1a228cSschwartz  * If applicable, add the following below this CDDL HEADER, with the
16*ea1a228cSschwartz  * fields enclosed by brackets "[]" replaced with your own identifying
17*ea1a228cSschwartz  * information: Portions Copyright [yyyy] [name of copyright owner]
18*ea1a228cSschwartz  *
19*ea1a228cSschwartz  * CDDL HEADER END
20*ea1a228cSschwartz  */
21*ea1a228cSschwartz 
22*ea1a228cSschwartz /*
23*ea1a228cSschwartz  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24*ea1a228cSschwartz  * Use is subject to license terms.
25*ea1a228cSschwartz  */
26*ea1a228cSschwartz 
27*ea1a228cSschwartz #ifndef	_N2PIUPC_BITERR_H
28*ea1a228cSschwartz #define	_N2PIUPC_BITERR_H
29*ea1a228cSschwartz 
30*ea1a228cSschwartz #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*ea1a228cSschwartz 
32*ea1a228cSschwartz /*
33*ea1a228cSschwartz  * "Virtual register" definitions for the bit error performance counters.
34*ea1a228cSschwartz  *
35*ea1a228cSschwartz  * The N2 PIU presents two bit error counters.  Bit 63 on the first counter
36*ea1a228cSschwartz  * serves as an enable for all bit error counters.   Bit 62 serves as a clear
37*ea1a228cSschwartz  * for all the bit error counters.
38*ea1a228cSschwartz  *
39*ea1a228cSschwartz  * Busstat doesn't play well with a register that has counters, enable and
40*ea1a228cSschwartz  * clear, so this module presents to the rest of the driver and to busstat a
41*ea1a228cSschwartz  * new layered set of register interfaces.
42*ea1a228cSschwartz  *
43*ea1a228cSschwartz  * These are:
44*ea1a228cSschwartz  *	SW_N2PIU_BITERR_CNT1_DATA	Biterr counter 1 data (readonly)
45*ea1a228cSschwartz  *						Maps directly to HW biterr
46*ea1a228cSschwartz  *						counter 1.  Returns data for
47*ea1a228cSschwartz  *						bad_dllps, bad_tlps,
48*ea1a228cSschwartz  *						phys_rcvr_errs
49*ea1a228cSschwartz  *
50*ea1a228cSschwartz  *	SW_N2PIU_BITERR_CNT2_DATA	Biterr counter 2 data (readonly)
51*ea1a228cSschwartz  *						Maps to HW biterr counter 2, but
52*ea1a228cSschwartz  *						offers evt select of individual
53*ea1a228cSschwartz  *						lanes 0-7 or all lanes together
54*ea1a228cSschwartz  *
55*ea1a228cSschwartz  *	SW_N2PIU_BITERR_CLR		Setting bit 62 here clears all biterr
56*ea1a228cSschwartz  *						counters (write-only)
57*ea1a228cSschwartz  *
58*ea1a228cSschwartz  *	SW_N2PIU_BITERR_SEL		Bit 63 is overall biterr enable.
59*ea1a228cSschwartz  *					Bits 0-3 are event select for counter 2
60*ea1a228cSschwartz  *					(read-write)
61*ea1a228cSschwartz  *
62*ea1a228cSschwartz  * Note: each is assigned an offset similar to the offset of real performance
63*ea1a228cSschwartz  * counter registers.  Offsets for these registers extend beyond the real reg
64*ea1a228cSschwartz  * set.
65*ea1a228cSschwartz  */
66*ea1a228cSschwartz 
67*ea1a228cSschwartz #ifdef	__cplusplus
68*ea1a228cSschwartz extern "C" {
69*ea1a228cSschwartz #endif
70*ea1a228cSschwartz 
71*ea1a228cSschwartz #include <sys/sunddi.h>
72*ea1a228cSschwartz 
73*ea1a228cSschwartz /* SW abstractions for the BITERR counters. */
74*ea1a228cSschwartz 
75*ea1a228cSschwartz /* Select register.  Select enable for all biterr ctrs, and PIC3 events. */
76*ea1a228cSschwartz #define	SW_N2PIU_BITERR_SEL		HVIO_N2PIU_PERFREG_NUM_REGS
77*ea1a228cSschwartz 
78*ea1a228cSschwartz /* Clear register.  This zeros out all biterr ctrs. */
79*ea1a228cSschwartz #define	SW_N2PIU_BITERR_CLR		(HVIO_N2PIU_PERFREG_NUM_REGS + 1)
80*ea1a228cSschwartz 
81*ea1a228cSschwartz /* Biterr counter 1.  Same as in the PRM. */
82*ea1a228cSschwartz #define	SW_N2PIU_BITERR_CNT1_DATA	(HVIO_N2PIU_PERFREG_NUM_REGS + 2)
83*ea1a228cSschwartz 
84*ea1a228cSschwartz /*
85*ea1a228cSschwartz  * Biterr counter 2.  Reports errors for all lanes, or for any individual lane.
86*ea1a228cSschwartz  * Select what to report with the SELect register above.  Enabled only if the
87*ea1a228cSschwartz  * enable for all biterr counters is enabled.
88*ea1a228cSschwartz  */
89*ea1a228cSschwartz #define	SW_N2PIU_BITERR_CNT2_DATA	(HVIO_N2PIU_PERFREG_NUM_REGS + 3)
90*ea1a228cSschwartz 
91*ea1a228cSschwartz /* Biterr counter abstraction functions. */
92*ea1a228cSschwartz extern int n2piupc_biterr_attach(void **);
93*ea1a228cSschwartz extern void n2piupc_biterr_detach(void *);
94*ea1a228cSschwartz extern int n2piupc_biterr_write(n2piupc_t *n2piupc_p, int regid, uint64_t data);
95*ea1a228cSschwartz extern int n2piupc_biterr_read(n2piupc_t *n2piupc_p, int regid, uint64_t *data);
96*ea1a228cSschwartz 
97*ea1a228cSschwartz #ifdef	__cplusplus
98*ea1a228cSschwartz }
99*ea1a228cSschwartz #endif
100*ea1a228cSschwartz 
101*ea1a228cSschwartz #endif	/* _N2PIUPC_BITERR_H */
102