1 /* $FreeBSD: src/sys/dev/mpt/mpt_freebsd.h,v 1.3.2.3 2002/09/24 21:37:25 mjacob Exp $ */
2 /* $DragonFly: src/sys/dev/disk/mpt/mpt_freebsd.h,v 1.8 2005/10/12 17:35:50 dillon Exp $ */
4 * LSI MPT Host Adapter FreeBSD Wrapper Definitions (CAM version)
6 * Copyright (c) 2000, 2001 by Greg Ansley, Adam Prewett
8 * Partially derived from Matty Jacobs ISP driver.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice immediately at the beginning of the file, without modification,
15 * this list of conditions, and the following disclaimer.
16 * 2. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * Additional Copyright (c) 2002 by Matthew Jacob under same license.
33 #ifndef _MPT_FREEBSD_H_
34 #define _MPT_FREEBSD_H_
38 #include <sys/param.h>
39 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/queue.h>
43 #include <sys/malloc.h>
45 #include <sys/endian.h>
47 #include <sys/malloc.h>
48 #include <sys/mutex.h>
49 #include <sys/condvar.h>
53 #include <sys/thread2.h>
55 #include <machine/bus_memio.h>
56 #include <machine/bus_pio.h>
57 #include <machine/bus.h>
58 #include <machine/clock.h>
59 #include <machine/cpu.h>
61 #include <bus/cam/cam.h>
62 #include <bus/cam/cam_debug.h>
63 #include <bus/cam/cam_ccb.h>
64 #include <bus/cam/cam_sim.h>
65 #include <bus/cam/cam_xpt.h>
66 #include <bus/cam/cam_xpt_sim.h>
67 #include <bus/cam/cam_debug.h>
68 #include <bus/cam/scsi/scsi_all.h>
69 #include <bus/cam/scsi/scsi_message.h>
73 #include "mpilib/mpi_type.h"
74 #include "mpilib/mpi.h"
75 #include "mpilib/mpi_cnfg.h"
76 #include "mpilib/mpi_fc.h"
77 #include "mpilib/mpi_init.h"
78 #include "mpilib/mpi_ioc.h"
79 #include "mpilib/mpi_lan.h"
80 #include "mpilib/mpi_targ.h"
83 #define INLINE __inline
87 #define MPT_LOCK(mpt) crit_enter()
88 #define MPT_UNLOCK(mpt) crit_exit()
89 #define MPT_LOCK_SETUP(mpt)
90 #define MPT_LOCK_DESTROY(mpt)
92 #if LOCKING_WORKED_AS_IT_SHOULD
93 #define MPT_IFLAGS INTR_ENTROPY | INTR_MPSAFE
94 #define MPT_LOCK_SETUP(mpt) \
95 mtx_init(&mpt->mpt_lock, "mpt", NULL, MTX_DEF); \
96 mpt->mpt_locksetup = 1
97 #define MPT_LOCK_DESTROY(mpt) \
98 if (mpt->mpt_locksetup) { \
99 mtx_destroy(&mpt->mpt_lock); \
100 mpt->mpt_locksetup = 0; \
103 #define MPT_LOCK(mpt) mtx_lock(&(mpt)->mpt_lock)
104 #define MPT_UNLOCK(mpt) mtx_unlock(&(mpt)->mpt_lock)
106 #define MPT_IFLAGS INTR_ENTROPY
107 #define MPT_LOCK_SETUP(mpt) do { } while (0)
108 #define MPT_LOCK_DESTROY(mpt) do { } while (0)
109 #define MPT_LOCK(mpt) do { } while (0)
110 #define MPT_UNLOCK(mpt) do { } while (0)
116 /* Max MPT Reply we are willing to accept (must be power of 2) */
117 #define MPT_REPLY_SIZE 128
119 #define MPT_MAX_REQUESTS(mpt) ((mpt)->is_fc? 1024 : 256)
120 #define MPT_REQUEST_AREA 512
121 #define MPT_SENSE_SIZE 32 /* included in MPT_REQUEST_SIZE */
122 #define MPT_REQ_MEM_SIZE(mpt) (MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA)
125 * We cannot tell prior to getting IOC facts how big the IOC's request
126 * area is. Because of this we cannot tell at compile time how many
127 * simple SG elements we can fit within an IOC request prior to having
128 * to put in a chain element.
130 * Experimentally we know that the Ultra4 parts have a 96 byte request
131 * element size and the Fibre Channel units have a 144 byte request
132 * element size. Therefore, if we have 512-32 (== 480) bytes of request
133 * area to play with, we have room for between 3 and 5 request sized
134 * regions- the first of which is the command plus a simple SG list,
135 * the rest of which are chained continuation SG lists. Given that the
136 * normal request we use is 48 bytes w/o the first SG element, we can
137 * assume we have 480-48 == 432 bytes to have simple SG elements and/or
138 * chain elements. If we assume 32 bit addressing, this works out to
139 * 54 SG or chain elements. If we assume 5 chain elements, then we have
140 * a maximum of 49 separate actual SG segments.
143 #define MPT_SGL_MAX 49
145 #define MPT_RQSL(mpt) (mpt->request_frame_size << 2)
146 #define MPT_NSGL(mpt) (MPT_RQSL(mpt) / sizeof (SGE_SIMPLE32))
148 #define MPT_NSGL_FIRST(mpt) \
149 (((mpt->request_frame_size << 2) - \
150 sizeof (MSG_SCSI_IO_REQUEST) - \
151 sizeof (SGE_IO_UNION)) / sizeof (SGE_SIMPLE32))
154 * Convert a physical address returned from IOC to kvm address
155 * needed to access the data.
157 #define MPT_REPLY_PTOV(m, x) \
158 ((void *)(&m->reply[((x << 1) - m->reply_phys)]))
160 #define ccb_mpt_ptr sim_priv.entries[0].ptr
161 #define ccb_req_ptr sim_priv.entries[1].ptr
164 REQ_FREE, REQ_IN_PROGRESS, REQ_TIMEOUT, REQ_ON_CHIP, REQ_DONE
166 typedef struct req_entry {
167 u_int16_t index; /* Index of this entry */
168 union ccb * ccb; /* CAM request */
169 void * req_vbuf; /* Virtual Address of Entry */
170 void * sense_vbuf; /* Virtual Address of sense data */
171 bus_addr_t req_pbuf; /* Physical Address of Entry */
172 bus_addr_t sense_pbuf; /* Physical Address of sense data */
173 bus_dmamap_t dmap; /* DMA map for data buffer */
174 SLIST_ENTRY(req_entry) link; /* Pointer to next in list */
175 enum mpt_req_state debug; /* Debugging */
176 u_int32_t sequence; /* Sequence Number */
177 struct callout timeout;
181 /* Structure for saving proper values for modifyable PCI configuration registers */
184 u_int16_t LatencyTimer_LineSize;
186 u_int32_t Mem0_BAR[2];
187 u_int32_t Mem1_BAR[2];
193 typedef struct mpt_softc {
202 bus : 1; /* FC929/1030 have two busses */
207 u_int16_t mpt_global_credits;
208 u_int16_t request_frame_size;
209 u_int8_t mpt_max_devices;
210 u_int8_t mpt_max_buses;
215 u_int16_t mpt_ini_id;
219 * Device Configuration Information
223 fCONFIG_PAGE_SCSI_PORT_0 _port_page0;
224 fCONFIG_PAGE_SCSI_PORT_1 _port_page1;
225 fCONFIG_PAGE_SCSI_PORT_2 _port_page2;
226 fCONFIG_PAGE_SCSI_DEVICE_0 _dev_page0[16];
227 fCONFIG_PAGE_SCSI_DEVICE_1 _dev_page1[16];
228 uint16_t _tag_enable;
229 uint16_t _disc_enable;
230 uint16_t _update_params0;
231 uint16_t _update_params1;
233 #define mpt_port_page0 cfg.spi._port_page0
234 #define mpt_port_page1 cfg.spi._port_page1
235 #define mpt_port_page2 cfg.spi._port_page2
236 #define mpt_dev_page0 cfg.spi._dev_page0
237 #define mpt_dev_page1 cfg.spi._dev_page1
238 #define mpt_tag_enable cfg.spi._tag_enable
239 #define mpt_disc_enable cfg.spi._disc_enable
240 #define mpt_update_params0 cfg.spi._update_params0
241 #define mpt_update_params1 cfg.spi._update_params1
250 struct resource * pci_irq; /* Interrupt map for chip */
251 void * ih; /* Interupt handle */
252 struct mpt_pci_cfg pci_cfg; /* saved PCI conf registers */
258 struct resource * pci_reg; /* Register map for chip */
259 int pci_reg_id; /* Resource ID */
260 bus_space_tag_t pci_st; /* Bus tag for registers */
261 bus_space_handle_t pci_sh; /* Bus handle for registers */
262 vm_offset_t pci_pa; /* Physical Address */
264 bus_dma_tag_t parent_dmat; /* DMA tag for parent PCI bus */
265 bus_dma_tag_t reply_dmat; /* DMA tag for reply memory */
266 bus_dmamap_t reply_dmap; /* DMA map for reply memory */
267 char * reply; /* KVA of reply memory */
268 bus_addr_t reply_phys; /* BusAddr of reply memory */
271 bus_dma_tag_t buffer_dmat; /* DMA tag for buffers */
272 bus_dma_tag_t request_dmat; /* DMA tag for request memroy */
273 bus_dmamap_t request_dmap; /* DMA map for request memroy */
274 char * request; /* KVA of Request memory */
275 bus_addr_t request_phys; /* BusADdr of request memory */
278 * CAM && Software Management
281 request_t * request_pool;
282 SLIST_HEAD(req_queue, req_entry) request_free_list;
284 struct cam_sim * sim;
285 struct cam_path * path;
287 u_int32_t sequence; /* Sequence Number */
288 u_int32_t timeouts; /* timeout count */
289 u_int32_t success; /* successes afer timeout */
291 /* Opposing port in a 929 or 1030, or NULL */
292 struct mpt_softc * mpt2;
299 static INLINE void mpt_write(mpt_softc_t *, size_t, u_int32_t);
300 static INLINE u_int32_t mpt_read(mpt_softc_t *, int);
303 mpt_write(mpt_softc_t *mpt, size_t offset, u_int32_t val)
305 bus_space_write_4(mpt->pci_st, mpt->pci_sh, offset, val);
308 static INLINE u_int32_t
309 mpt_read(mpt_softc_t *mpt, int offset)
311 return (bus_space_read_4(mpt->pci_st, mpt->pci_sh, offset));
314 void mpt_cam_attach(mpt_softc_t *);
315 void mpt_cam_detach(mpt_softc_t *);
316 void mpt_done(mpt_softc_t *, u_int32_t);
317 void mpt_set_config_regs(mpt_softc_t *);
319 #endif /* _MPT_FREEBSD_H */