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
|
/* $FreeBSD$ */
/* $Id: isp_freebsd.c,v 1.1 1998/04/22 17:54:50 mjacob Exp $ */
/*
* Platform (FreeBSD) dependent common attachment code for Qlogic adapters.
*
*---------------------------------------
* Copyright (c) 1997, 1998 by Matthew Jacob
* NASA/Ames Research Center
* All rights reserved.
*---------------------------------------
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <dev/isp/isp_freebsd.h>
static void ispminphys __P((struct buf *));
static u_int32_t isp_adapter_info __P((int));
static struct scsi_adapter isp_switch = {
ispscsicmd, ispminphys, 0, 0, isp_adapter_info, "isp", { 0, 0 }
};
static struct scsi_device isp_dev = {
NULL, NULL, NULL, NULL, "isp", 0, { 0, 0 }
};
/*
* Complete attachment of hardware, include subdevices.
*/
void
isp_attach(isp)
struct ispsoftc *isp;
{
struct scsibus_data *scbus;
scbus = scsi_alloc_bus();
if(!scbus) {
return;
}
isp->isp_state = ISP_RUNSTATE;
isp->isp_osinfo._link.adapter_unit = isp->isp_osinfo.unit;
isp->isp_osinfo._link.adapter_softc = isp;
isp->isp_osinfo._link.adapter = &isp_switch;
isp->isp_osinfo._link.device = &isp_dev;
isp->isp_osinfo._link.flags = 0;
if (isp->isp_type & ISP_HA_FC) {
isp->isp_osinfo._link.adapter_targ = 0xff;
#if 0
isp->isp_osinfo._link.openings =
RQUEST_QUEUE_LEN(isp) / (MAX_FC_TARG-1);
#endif
scbus->maxtarg = MAX_FC_TARG-1;
} else {
isp->isp_osinfo._link.adapter_targ =
((sdparam *)isp->isp_param)->isp_initiator_id;
#if 0
isp->isp_osinfo._link.openings =
RQUEST_QUEUE_LEN(isp) / (MAX_TARGETS-1);
#endif
scbus->maxtarg = MAX_TARGETS-1;
}
/*
* Prepare the scsibus_data area for the upperlevel scsi code.
*/
scbus->adapter_link = &isp->isp_osinfo._link;
/*
* ask the adapter what subunits are present
*/
scsi_attachdevs(scbus);
}
/*
* minphys our xfers
*
* Unfortunately, the buffer pointer describes the target device- not the
* adapter device, so we can't use the pointer to find out what kind of
* adapter we are and adjust accordingly.
*/
static void
ispminphys(bp)
struct buf *bp;
{
/*
* XX: Only the 1020 has a 24 bit limit.
*/
if (bp->b_bcount >= (1 << 24)) {
bp->b_bcount = (1 << 24);
}
}
static u_int32_t
isp_adapter_info(unit)
int unit;
{
/*
* XXX: FIND ISP BASED UPON UNIT AND GET REAL QUEUE LIMIT FROM THAT
*/
return (2);
}
|
