1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/* $OpenBSD: ahcivar.h,v 1.9 2014/12/03 04:33:06 jsg Exp $ */
/*
* Copyright (c) 2006 David Gwynne <dlg@openbsd.org>
* Copyright (c) 2010 Conformal Systems LLC <info@conformal.com>
* Copyright (c) 2010 Jonathan Matthew <jonathan@d14n.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/timeout.h>
#include <dev/ata/atascsi.h>
#include <dev/ata/pmreg.h>
/* change to AHCI_DEBUG for dmesg spam */
#define NO_AHCI_DEBUG
struct ahci_dmamem {
bus_dmamap_t adm_map;
bus_dma_segment_t adm_seg;
size_t adm_size;
caddr_t adm_kva;
};
#define AHCI_DMA_MAP(_adm) ((_adm)->adm_map)
#define AHCI_DMA_DVA(_adm) ((u_int64_t)(_adm)->adm_map->dm_segs[0].ds_addr)
#define AHCI_DMA_KVA(_adm) ((void *)(_adm)->adm_kva)
struct ahci_softc;
struct ahci_port;
struct ahci_ccb {
/* ATA xfer associated with this CCB. Must be 1st struct member. */
struct ata_xfer ccb_xa;
int ccb_slot;
struct ahci_port *ccb_port;
bus_dmamap_t ccb_dmamap;
struct ahci_cmd_hdr *ccb_cmd_hdr;
struct ahci_cmd_table *ccb_cmd_table;
void (*ccb_done)(struct ahci_ccb *);
TAILQ_ENTRY(ahci_ccb) ccb_entry;
};
struct ahci_port {
struct ahci_softc *ap_sc;
bus_space_handle_t ap_ioh;
#ifdef AHCI_COALESCE
int ap_num;
#endif
struct ahci_rfis *ap_rfis;
struct ahci_dmamem *ap_dmamem_rfis;
struct ahci_dmamem *ap_dmamem_cmd_list;
struct ahci_dmamem *ap_dmamem_cmd_table;
volatile u_int32_t ap_active;
volatile u_int32_t ap_active_cnt;
volatile u_int32_t ap_sactive;
volatile u_int32_t ap_pmp_ncq_port;
struct ahci_ccb *ap_ccbs;
TAILQ_HEAD(, ahci_ccb) ap_ccb_free;
TAILQ_HEAD(, ahci_ccb) ap_ccb_pending;
struct mutex ap_ccb_mtx;
struct ahci_ccb *ap_ccb_err;
u_int32_t ap_state;
#define AP_S_NORMAL 0
#define AP_S_PMP_PROBE 1
#define AP_S_PMP_PORT_PROBE 2
#define AP_S_ERROR_RECOVERY 3
#define AP_S_FATAL_ERROR 4
int ap_pmp_ports;
int ap_port;
int ap_pmp_ignore_ifs;
/* For error recovery. */
#ifdef DIAGNOSTIC
int ap_err_busy;
#endif
u_int32_t ap_err_saved_sactive;
u_int32_t ap_err_saved_active;
u_int32_t ap_err_saved_active_cnt;
u_int8_t *ap_err_scratch;
#ifdef AHCI_DEBUG
char ap_name[16];
#define PORTNAME(_ap) ((_ap)->ap_name)
#else
#define PORTNAME(_ap) DEVNAME((_ap)->ap_sc)
#endif
};
struct ahci_softc {
struct device sc_dev;
void *sc_ih;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_size_t sc_ios;
bus_dma_tag_t sc_dmat;
int sc_flags;
#define AHCI_F_NO_NCQ (1<<0)
#define AHCI_F_IPMS_PROBE (1<<1) /* IPMS on failed PMP probe */
#define AHCI_F_NO_PMP (1<<2) /* ignore PMP capability */
#define AHCI_F_NO_MSI (1<<3) /* disable MSI */
u_int sc_ncmds;
struct ahci_port *sc_ports[AHCI_MAX_PORTS];
struct atascsi *sc_atascsi;
u_int32_t sc_cap;
#ifdef AHCI_COALESCE
u_int32_t sc_ccc_mask;
u_int32_t sc_ccc_ports;
u_int32_t sc_ccc_ports_cur;
#endif
int (*sc_port_start)(struct ahci_port *, int);
};
#define DEVNAME(_s) ((_s)->sc_dev.dv_xname)
#define ahci_port_start(_p, _f) ((_p)->ap_sc->sc_port_start((_p), (_f)))
int ahci_attach(struct ahci_softc *);
int ahci_detach(struct ahci_softc *, int);
int ahci_activate(struct device *, int);
int ahci_intr(void *);
|
