/* $OpenBSD: aacvar.h,v 1.13 2016/04/01 04:16:27 jsg Exp $ */ /*- * Copyright (c) 2000 Michael Smith * Copyright (c) 2000 BSDi * Copyright (c) 2000 Niklas Hallqvist * 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, 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. * * 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. * * $FreeBSD: /c/ncvs/src/sys/dev/aac/aacvar.h,v 1.1 2000/09/13 03:20:34 msmith Exp $ */ /* * This driver would not have rewritten for OpenBSD if it was not for the * hardware donation from Nocom. I want to thank them for their support. * Of course, credit should go to Mike Smith for the original work he did * in the FreeBSD driver where I found lots of inspiration. * - Niklas Hallqvist */ /* Debugging */ // #define AAC_DEBUG 0x0 #ifdef AAC_DEBUG #define AAC_DPRINTF(mask, args) if (aac_debug & (mask)) printf args #define AAC_D_INTR 0x001 #define AAC_D_MISC 0x002 #define AAC_D_CMD 0x004 #define AAC_D_QUEUE 0x008 #define AAC_D_IO 0x010 #define AAC_D_IOCTL 0x020 #define AAC_D_LOCK 0x040 #define AAC_D_THREAD 0x080 #define AAC_D_FIB 0x100 extern int aac_debug; #define AAC_PRINT_FIB(sc, fib) do { \ if (aac_debug & AAC_D_FIB) \ aac_print_fib((sc), (fib), __func__); \ } while (0) #else #define AAC_DPRINTF(mask, args) #define AAC_PRINT_FIB(sc, fib) #endif struct aac_code_lookup { char *string; u_int32_t code; }; struct aac_softc; /* * We allocate a small set of FIBs for the adapter to use to send us messages. */ #define AAC_ADAPTER_FIBS 8 /* * FIBs are allocated in page-size chunks and can grow up to the 512 * limit imposed by the hardware. */ #define AAC_FIB_COUNT (PAGE_SIZE/sizeof(struct aac_fib)) #define AAC_MAX_FIBS 512 #define AAC_FIBMAP_SIZE (PAGE_SIZE) /* * The controller reports status events in AIFs. We hang on to a number of * these in order to pass them out to user-space management tools. */ #define AAC_AIFQ_LENGTH 64 /* * Firmware messages are passed in the printf buffer. */ #define AAC_PRINTF_BUFSIZE 256 /* * We wait this many seconds for the adapter to come ready if it is still * booting. */ #define AAC_BOOT_TIMEOUT (3 * 60) /* * Timeout for immediate commands. */ #define AAC_IMMEDIATE_TIMEOUT 30 /* * Timeout for normal commands */ #define AAC_CMD_TIMEOUT 30 /* seconds */ /* * Rate at which we periodically check for timed out commands and kick the * controller. */ #define AAC_PERIODIC_INTERVAL 20 /* seconds */ /* * Wait this long for a lost interrupt to get detected. */ #define AAC_WATCH_TIMEOUT 10000 /* 10000 * 1ms = 10s */ /* * Delay 20ms after the qnotify in sync operations. Experimentally deduced. */ #define AAC_SYNC_DELAY 20000 /* * The firmware interface allows for a 16-bit s/g list length. We limit * ourselves to a reasonable maximum and ensure alignment. */ #define AAC_MAXSGENTRIES 64 /* max S/G entries, limit 65535 */ /* * We gather a number of adapter-visible items into a single structure. * * The ordering of this structure may be important; we copy the Linux driver: * * Adapter FIBs * Init struct * Queue headers (Comm Area) * Printf buffer * * In addition, we add: * Sync Fib */ struct aac_common { /* fibs for the controller to send us messages */ struct aac_fib ac_fibs[AAC_ADAPTER_FIBS]; /* the init structure */ struct aac_adapter_init ac_init; /* arena within which the queue structures are kept */ u_int8_t ac_qbuf[sizeof(struct aac_queue_table) + AAC_QUEUE_ALIGN]; /* buffer for text messages from the controller */ char ac_printf[AAC_PRINTF_BUFSIZE]; /* fib for synchronous commands */ struct aac_fib ac_sync_fib; }; #define AAC_COMMON_ALLOCSIZE (8192 + sizeof(struct aac_common)) /* * Interface operations */ struct aac_interface { int (*aif_get_fwstatus)(struct aac_softc *); void (*aif_qnotify)(struct aac_softc *, int); int (*aif_get_istatus)(struct aac_softc *); void (*aif_set_istatus)(struct aac_softc *, int); void (*aif_set_mailbox)(struct aac_softc *, u_int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t); int (*aif_get_mailbox)(struct aac_softc *, int mb); void (*aif_set_interrupts)(struct aac_softc *, int); }; extern struct aac_interface aac_fa_interface; extern struct aac_interface aac_sa_interface; extern struct aac_interface aac_rx_interface; extern struct aac_interface aac_rkt_interface; #define AAC_GET_FWSTATUS(sc) ((sc)->aac_if.aif_get_fwstatus(sc)) #define AAC_QNOTIFY(sc, qbit) \ ((sc)->aac_if.aif_qnotify((sc), (qbit))) #define AAC_GET_ISTATUS(sc) ((sc)->aac_if.aif_get_istatus(sc)) #define AAC_CLEAR_ISTATUS(sc, mask) \ ((sc)->aac_if.aif_set_istatus((sc), (mask))) #define AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3) \ do { \ ((sc)->aac_if.aif_set_mailbox((sc), (command), (arg0), \ (arg1), (arg2), (arg3))); \ } while(0) #define AAC_GET_MAILBOX(sc, mb) \ ((sc)->aac_if.aif_get_mailbox(sc, (mb))) #define AAC_MASK_INTERRUPTS(sc) \ ((sc)->aac_if.aif_set_interrupts((sc), 0)) #define AAC_UNMASK_INTERRUPTS(sc) \ ((sc)->aac_if.aif_set_interrupts((sc), 1)) #define AAC_SETREG4(sc, reg, val) \ bus_space_write_4((sc)->aac_memt, (sc)->aac_memh, (reg), (val)) #define AAC_GETREG4(sc, reg) \ bus_space_read_4((sc)->aac_memt, (sc)->aac_memh, (reg)) #define AAC_SETREG2(sc, reg, val) \ bus_space_write_2((sc)->aac_memt, (sc)->aac_memh, (reg), (val)) #define AAC_GETREG2(sc, reg) \ bus_space_read_2((sc)->aac_memt, (sc)->aac_memh, (reg)) #define AAC_SETREG1(sc, reg, val) \ bus_space_write_1((sc)->aac_memt, (sc)->aac_memh, (reg), (val)) #define AAC_GETREG1(sc, reg) \ bus_space_read_1((sc)->aac_memt, (sc)->aac_memh, (reg)) /* Define the OS version specific locks */ typedef struct rwlock aac_lock_t; #define AAC_LOCK_INIT(l, s) do { \ rw_init((l), "aaclock"); \ AAC_DPRINTF(AAC_D_LOCK, ("%s: init lock @%s: %d\n", \ sc->aac_dev.dv_xname, __FUNCTION__, __LINE__)); \ } while (0) #define AAC_LOCK_ACQUIRE(l) do { \ AAC_DPRINTF(AAC_D_LOCK, ("%s: lock @%s: %d\n", \ sc->aac_dev.dv_xname, __FUNCTION__, __LINE__)); \ rw_enter_write((l)); \ } while (0) #define AAC_LOCK_RELEASE(l) do { \ rw_exit_write((l)); \ AAC_DPRINTF(AAC_D_LOCK, ("%s: unlock @%s: %d\n", \ sc->aac_dev.dv_xname, __FUNCTION__, __LINE__)); \ } while (0) /* * Per-container data structure */ struct aac_container { struct aac_mntobj co_mntobj; int co_found; TAILQ_ENTRY(aac_container) co_link; }; /* * A command contol block, one for each corresponding command index of the * controller. */ struct aac_command { TAILQ_ENTRY(aac_command) cm_link; /* list linkage */ struct aac_softc *cm_sc; /* controller that owns us */ struct aac_fib *cm_fib; /* FIB for this command */ bus_addr_t cm_fibphys; /* bus address of the FIB */ void *cm_data; size_t cm_datalen; bus_dmamap_t cm_datamap; struct aac_sg_table *cm_sgtable; /* pointer to s/g table */ u_int cm_flags; #define AAC_CMD_MAPPED (1<<0) /* command has had its data mapped */ #define AAC_CMD_DATAIN (1<<1) /* command involves data moving * from controller to host */ #define AAC_CMD_DATAOUT (1<<2) /* command involves data moving * from host to controller */ #define AAC_CMD_COMPLETED (1<<3) /* command has been completed */ #define AAC_CMD_TIMEDOUT (1<<4) /* command taken too long */ #define AAC_ON_AACQ_FREE (1<<5) #define AAC_ON_AACQ_READY (1<<6) #define AAC_ON_AACQ_BUSY (1<<7) #define AAC_ON_AACQ_BIO (1<<8) #define AAC_ON_AACQ_MASK ((1<<5)|(1<<6)|(1<<7)|(1<<8)) #define AAC_QUEUE_FRZN (1<<9) /* Freeze the processing of * commands on the queue. */ #define AAC_ACF_WATCHDOG (1<<10) void (*cm_complete)(struct aac_command *); void *cm_private; u_int32_t cm_blkno; u_int32_t cm_bcount; time_t cm_timestamp; /* command creation time */ int cm_queue; int cm_index; }; struct aac_fibmap { TAILQ_ENTRY(aac_fibmap) fm_link; /* list linkage */ struct aac_fib *aac_fibs; bus_dmamap_t aac_fibmap; bus_dma_segment_t aac_seg; int aac_nsegs; struct aac_command *aac_commands; }; /* * Command queue statistics */ #define AACQ_FREE 0 #define AACQ_BIO 1 #define AACQ_READY 2 #define AACQ_BUSY 3 #define AACQ_COUNT 4 /* total number of queues */ struct aac_qstat { u_int32_t q_length; u_int32_t q_max; }; /* * Per-controller structure. */ struct aac_softc { struct device aac_dev; void *aac_ih; struct scsi_link aac_link; /* Virtual SCSI bus for cache devs */ bus_space_tag_t aac_memt; bus_space_handle_t aac_memh; bus_dma_tag_t aac_dmat; /* parent DMA tag */ /* controller features, limits and status */ int aac_state; #define AAC_STATE_SUSPEND (1<<0) #define AAC_STATE_OPEN (1<<1) #define AAC_STATE_INTERRUPTS_ON (1<<2) #define AAC_STATE_AIF_SLEEPER (1<<3) struct FsaRevision aac_revision; int aac_hwif; /* controller hardware interface */ #define AAC_HWIF_I960RX 0 #define AAC_HWIF_STRONGARM 1 #define AAC_HWIF_FALCON 2 #define AAC_HWIF_RKT 3 #define AAC_HWIF_UNKNOWN -1 struct aac_common *aac_common; bus_dmamap_t aac_common_map; u_int32_t aac_common_busaddr; struct aac_interface aac_if; /* command/fib resources */ TAILQ_HEAD(,aac_fibmap) aac_fibmap_tqh; u_int total_fibs; struct aac_command *aac_commands; struct scsi_iopool aac_iopool; /* command management */ struct mutex aac_free_mtx; TAILQ_HEAD(,aac_command) aac_free; /* command structures * available for reuse */ TAILQ_HEAD(,aac_command) aac_ready; /* commands on hold for * controller resources */ TAILQ_HEAD(,aac_command) aac_busy; TAILQ_HEAD(,aac_command) aac_bio; /* command management */ struct aac_queue_table *aac_queues; struct aac_queue_entry *aac_qentries[AAC_QUEUE_COUNT]; struct aac_qstat aac_qstat[AACQ_COUNT]; /* queue statistics */ /* connected containters */ TAILQ_HEAD(,aac_container) aac_container_tqh; aac_lock_t aac_container_lock; /* Protect the sync fib */ #define AAC_SYNC_LOCK_FORCE (1 << 0) aac_lock_t aac_sync_lock; aac_lock_t aac_io_lock; struct { u_int8_t hd_present; u_int8_t hd_is_logdrv; u_int8_t hd_is_arraydrv; u_int8_t hd_is_master; u_int8_t hd_is_parity; u_int8_t hd_is_hotfix; u_int8_t hd_master_no; u_int8_t hd_lock; u_int8_t hd_heads; u_int8_t hd_secs; u_int16_t hd_devtype; u_int32_t hd_size; u_int8_t hd_ldr_no; u_int8_t hd_rw_attribs; u_int32_t hd_start_sec; } aac_hdr[AAC_MAX_CONTAINERS]; int aac_container_count; /* management interface */ aac_lock_t aac_aifq_lock; struct aac_aif_command aac_aifq[AAC_AIFQ_LENGTH]; int aac_aifq_head; int aac_aifq_tail; struct selinfo aac_select; struct proc *aifthread; int aifflags; #define AAC_AIFFLAGS_RUNNING (1 << 0) #define AAC_AIFFLAGS_AIF (1 << 1) #define AAC_AIFFLAGS_EXIT (1 << 2) #define AAC_AIFFLAGS_EXITED (1 << 3) #define AAC_AIFFLAGS_COMPLETE (1 << 4) #define AAC_AIFFLAGS_PRINTF (1 << 5) #define AAC_AIFFLAGS_PENDING (AAC_AIFFLAGS_AIF | AAC_AIFFLAGS_COMPLETE | \ AAC_AIFFLAGS_PRINTF) u_int32_t flags; #define AAC_FLAGS_PERC2QC (1 << 0) #define AAC_FLAGS_ENABLE_CAM (1 << 1) /* No SCSI passthrough */ #define AAC_FLAGS_CAM_NORESET (1 << 2) /* Fake SCSI resets */ #define AAC_FLAGS_CAM_PASSONLY (1 << 3) /* Only create pass devices */ #define AAC_FLAGS_SG_64BIT (1 << 4) /* Use 64-bit S/G addresses */ #define AAC_FLAGS_4GB_WINDOW (1 << 5) /* Device can access host mem * 2GB-4GB range */ #define AAC_FLAGS_NO4GB (1 << 6) /* Can't access host mem >2GB*/ #define AAC_FLAGS_256FIBS (1 << 7) /* Can only do 256 commands */ #define AAC_FLAGS_BROKEN_MEMMAP (1 << 8) /* Broken HostPhysMemPages */ u_int32_t supported_options; int aac_max_fibs; void *aac_sdh; }; int aac_attach(struct aac_softc *); int aac_intr(void *); /* These all require correctly aligned buffers */ static __inline__ void aac_enc16(u_int8_t *, u_int16_t); static __inline__ void aac_enc32(u_int8_t *, u_int32_t); static __inline__ u_int16_t aac_dec16(u_int8_t *); static __inline__ u_int32_t aac_dec32(u_int8_t *); static __inline__ void aac_enc16(addr, value) u_int8_t *addr; u_int16_t value; { *(u_int16_t *)addr = htole16(value); } static __inline__ void aac_enc32(addr, value) u_int8_t *addr; u_int32_t value; { *(u_int32_t *)addr = htole32(value); } static __inline__ u_int16_t aac_dec16(addr) u_int8_t *addr; { return letoh16(*(u_int16_t *)addr); } static __inline__ u_int32_t aac_dec32(addr) u_int8_t *addr; { return letoh32(*(u_int32_t *)addr); } /* Declarations copied from aac.c */ #ifdef AAC_DEBUG void aac_print_fib(struct aac_softc *, struct aac_fib *, const char *); void aac_print_aif(struct aac_softc *, struct aac_aif_command *); #endif void aac_handle_aif(struct aac_softc *, struct aac_fib *); /* * Queue primitives for driver queues. */ #define AACQ_ADD(sc, qname) \ do { \ struct aac_qstat *qs; \ \ qs = &(sc)->aac_qstat[qname]; \ \ qs->q_length++; \ if (qs->q_length > qs->q_max) \ qs->q_max = qs->q_length; \ } while (0) #define AACQ_REMOVE(sc, qname) (sc)->aac_qstat[qname].q_length-- #define AACQ_INIT(sc, qname) \ do { \ sc->aac_qstat[qname].q_length = 0; \ sc->aac_qstat[qname].q_max = 0; \ } while (0) #define AACQ_COMMAND_QUEUE(name, index) \ static __inline void \ aac_initq_ ## name (struct aac_softc *sc) \ { \ TAILQ_INIT(&sc->aac_ ## name); \ AACQ_INIT(sc, index); \ } \ static __inline void \ aac_enqueue_ ## name (struct aac_command *cm) \ { \ AAC_DPRINTF(AAC_D_CMD, (": enqueue " #name)); \ if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \ printf("command %p is on another queue, flags = %#x\n", \ cm, cm->cm_flags); \ panic("command is on another queue"); \ } \ TAILQ_INSERT_TAIL(&cm->cm_sc->aac_ ## name, cm, cm_link); \ cm->cm_flags |= AAC_ON_ ## index; \ AACQ_ADD(cm->cm_sc, index); \ } \ static __inline void \ aac_requeue_ ## name (struct aac_command *cm) \ { \ AAC_DPRINTF(AAC_D_CMD, (": requeue " #name)); \ if ((cm->cm_flags & AAC_ON_AACQ_MASK) != 0) { \ printf("command %p is on another queue, flags = %#x\n", \ cm, cm->cm_flags); \ panic("command is on another queue"); \ } \ TAILQ_INSERT_HEAD(&cm->cm_sc->aac_ ## name, cm, cm_link); \ cm->cm_flags |= AAC_ON_ ## index; \ AACQ_ADD(cm->cm_sc, index); \ } \ static __inline struct aac_command * \ aac_dequeue_ ## name (struct aac_softc *sc) \ { \ struct aac_command *cm; \ \ if ((cm = TAILQ_FIRST(&sc->aac_ ## name)) != NULL) { \ AAC_DPRINTF(AAC_D_CMD, (": dequeue " #name)); \ if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \ printf("dequeue - command %p not in queue, flags = %#x, " \ "bit = %#x\n", cm, cm->cm_flags, \ AAC_ON_ ## index); \ panic("command not in queue"); \ } \ TAILQ_REMOVE(&sc->aac_ ## name, cm, cm_link); \ cm->cm_flags &= ~AAC_ON_ ## index; \ AACQ_REMOVE(sc, index); \ } \ return(cm); \ } \ static __inline void \ aac_remove_ ## name (struct aac_command *cm) \ { \ AAC_DPRINTF(AAC_D_CMD, (": remove " #name)); \ if ((cm->cm_flags & AAC_ON_ ## index) == 0) { \ printf("remove - command %p not in queue, flags = %#x, " \ "bit = %#x\n", cm, cm->cm_flags, \ AAC_ON_ ## index); \ panic("command not in queue"); \ } \ TAILQ_REMOVE(&cm->cm_sc->aac_ ## name, cm, cm_link); \ cm->cm_flags &= ~AAC_ON_ ## index; \ AACQ_REMOVE(cm->cm_sc, index); \ } \ struct hack AACQ_COMMAND_QUEUE(free, AACQ_FREE); AACQ_COMMAND_QUEUE(ready, AACQ_READY); AACQ_COMMAND_QUEUE(busy, AACQ_BUSY); AACQ_COMMAND_QUEUE(bio, AACQ_BIO); static __inline void aac_print_printf(struct aac_softc *sc) { /* * XXX We have the ability to read the length of the printf string * from out of the mailboxes. */ printf("** %s: %.*s", sc->aac_dev.dv_xname, AAC_PRINTF_BUFSIZE, sc->aac_common->ac_printf); sc->aac_common->ac_printf[0] = 0; AAC_QNOTIFY(sc, AAC_DB_PRINTF); }