/* * Adaptec AIC7xxx device driver for Linux. * * Copyright (c) 1994 John Aycock * The University of Calgary Department of Computer Science. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * * $Id: aic7xxx_osm.h,v 1.1.1.1 2003/06/23 22:18:34 jharrell Exp $ * * Copyright (c) 2000-2001 Adaptec Inc. * 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, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. * * $Id: aic7xxx_osm.h,v 1.1.1.1 2003/06/23 22:18:34 jharrell Exp $ * */ #ifndef _AIC7XXX_LINUX_H_ #define _AIC7XXX_LINUX_H_ #include #include #include #include #include #include #include #include #include #include #ifndef KERNEL_VERSION #define KERNEL_VERSION(x,y,z) (((x)<<16)+((y)<<8)+(z)) #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) #include #endif /* Core SCSI definitions */ #include "../scsi.h" #include "../hosts.h" /* Name space conflict with BSD queue macros */ #ifdef LIST_HEAD #undef LIST_HEAD #endif #include "cam.h" #include "queue.h" #include "scsi_message.h" /************************* Forward Declarations *******************************/ struct ahc_softc; typedef struct pci_dev *ahc_dev_softc_t; typedef Scsi_Cmnd *ahc_io_ctx_t; /******************************* Byte Order ***********************************/ #define ahc_htobe16(x) cpu_to_be16(x) #define ahc_htobe32(x) cpu_to_be32(x) #define ahc_htobe64(x) cpu_to_be64(x) #define ahc_htole16(x) cpu_to_le16(x) #define ahc_htole32(x) cpu_to_le32(x) #define ahc_htole64(x) cpu_to_le64(x) #define ahc_be16toh(x) be16_to_cpu(x) #define ahc_be32toh(x) be32_to_cpu(x) #define ahc_be64toh(x) be64_to_cpu(x) #define ahc_le16toh(x) le16_to_cpu(x) #define ahc_le32toh(x) le32_to_cpu(x) #define ahc_le64toh(x) le64_to_cpu(x) #ifndef LITTLE_ENDIAN #define LITTLE_ENDIAN 1234 #endif #ifndef BIG_ENDIAN #define BIG_ENDIAN 4321 #endif #ifndef BYTE_ORDER #if defined(__BIG_ENDIAN) #define BYTE_ORDER BIG_ENDIAN #endif #if defined(__LITTLE_ENDIAN) #define BYTE_ORDER LITTLE_ENDIAN #endif #endif /* BYTE_ORDER */ /************************* Configuration Data *********************************/ extern int aic7xxx_no_probe; extern int aic7xxx_detect_complete; extern Scsi_Host_Template* aic7xxx_driver_template; /***************************** Bus Space/DMA **********************************/ #if LINUX_VERSION_CODE > KERNEL_VERSION(2,2,17) typedef dma_addr_t bus_addr_t; #else typedef uint32_t bus_addr_t; #endif typedef uint32_t bus_size_t; typedef enum { BUS_SPACE_MEMIO, BUS_SPACE_PIO } bus_space_tag_t; typedef union { u_long ioport; volatile uint8_t *maddr; } bus_space_handle_t; typedef struct bus_dma_segment { bus_addr_t ds_addr; bus_size_t ds_len; } bus_dma_segment_t; struct ahc_linux_dma_tag { bus_size_t alignment; bus_size_t boundary; bus_size_t maxsize; }; typedef struct ahc_linux_dma_tag* bus_dma_tag_t; struct ahc_linux_dmamap { bus_addr_t bus_addr; }; typedef struct ahc_linux_dmamap* bus_dmamap_t; typedef int bus_dma_filter_t(void*, bus_addr_t); typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); #define BUS_DMA_WAITOK 0x0 #define BUS_DMA_NOWAIT 0x1 #define BUS_DMA_ALLOCNOW 0x2 #define BUS_DMA_LOAD_SEGS 0x4 /* * Argument is an S/G list not * a single buffer. */ #define BUS_SPACE_MAXADDR 0xFFFFFFFF #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/, bus_size_t /*alignment*/, bus_size_t /*boundary*/, bus_addr_t /*lowaddr*/, bus_addr_t /*highaddr*/, bus_dma_filter_t*/*filter*/, void */*filterarg*/, bus_size_t /*maxsize*/, int /*nsegments*/, bus_size_t /*maxsegsz*/, int /*flags*/, bus_dma_tag_t */*dma_tagp*/); void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/); int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/, void** /*vaddr*/, int /*flags*/, bus_dmamap_t* /*mapp*/); void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/, void* /*vaddr*/, bus_dmamap_t /*map*/); void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/, bus_dmamap_t /*map*/); int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/, bus_dmamap_t /*map*/, void * /*buf*/, bus_size_t /*buflen*/, bus_dmamap_callback_t *, void */*callback_arg*/, int /*flags*/); int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t); /* * Operations performed by ahc_dmamap_sync(). */ #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ /* * XXX * ahc_dmamap_sync is only used on buffers allocated with * the pci_alloc_consistent() API. Although I'm not sure how * this works on architectures with a write buffer, Linux does * not have an API to sync "coherent" memory. Perhaps we need * to do an mb()? */ #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) /************************** SCSI Constants/Structures *************************/ #define SCSI_REV_2 2 #define SCSI_STATUS_OK 0x00 #define SCSI_STATUS_CHECK_COND 0x02 #define SCSI_STATUS_COND_MET 0x04 #define SCSI_STATUS_BUSY 0x08 #define SCSI_STATUS_INTERMED 0x10 #define SCSI_STATUS_INTERMED_COND_MET 0x14 #define SCSI_STATUS_RESERV_CONFLICT 0x18 #define SCSI_STATUS_CMD_TERMINATED 0x22 #define SCSI_STATUS_QUEUE_FULL 0x28 /* * 6 byte request sense CDB format. */ struct scsi_sense { uint8_t opcode; uint8_t byte2; uint8_t unused[2]; uint8_t length; uint8_t control; }; struct scsi_sense_data { uint8_t error_code; uint8_t segment; uint8_t flags; uint8_t info[4]; uint8_t extra_len; uint8_t cmd_spec_info[4]; uint8_t add_sense_code; uint8_t add_sense_code_qual; uint8_t fru; uint8_t sense_key_spec[3]; uint8_t extra_bytes[14]; }; struct scsi_inquiry { u_int8_t opcode; u_int8_t byte2; #define SI_EVPD 0x01 u_int8_t page_code; u_int8_t reserved; u_int8_t length; u_int8_t control; }; struct scsi_inquiry_data { uint8_t device; #define SID_TYPE(inq_data) ((inq_data)->device & 0x1f) #define SID_QUAL(inq_data) (((inq_data)->device & 0xE0) >> 5) #define SID_QUAL_LU_CONNECTED 0x00 /* * The specified peripheral device * type is currently connected to * logical unit. If the target cannot * determine whether or not a physical * device is currently connected, it * shall also use this peripheral * qualifier when returning the INQUIRY * data. This peripheral qualifier * does not mean that the device is * ready for access by the initiator. */ #define SID_QUAL_LU_OFFLINE 0x01 /* * The target is capable of supporting * the specified peripheral device type * on this logical unit; however, the * physical device is not currently * connected to this logical unit. */ #define SID_QUAL_RSVD 0x02 #define SID_QUAL_BAD_LU 0x03 /* * The target is not capable of * supporting a physical device on * this logical unit. For this * peripheral qualifier the peripheral * device type shall be set to 1Fh to * provide compatibility with previous * versions of SCSI. All other * peripheral device type values are * reserved for this peripheral * qualifier. */ #define SID_QUAL_IS_VENDOR_UNIQUE(inq_data) ((SID_QUAL(inq_data) & 0x08) != 0) uint8_t dev_qual2; #define SID_QUAL2 0x7F #define SID_IS_REMOVABLE(inq_data) (((inq_data)->dev_qual2 & 0x80) != 0) uint8_t version; #define SID_ANSI_REV(inq_data) ((inq_data)->version & 0x07) #define SCSI_REV_0 0 #define SCSI_REV_CCS 1 #define SCSI_REV_2 2 #define SCSI_REV_SPC 3 #define SCSI_REV_SPC2 4 #define SID_ECMA 0x38 #define SID_ISO 0xC0 uint8_t response_format; #define SID_AENC 0x80 #define SID_TrmIOP 0x40 uint8_t additional_length; uint8_t reserved[2]; uint8_t flags; #define SID_SftRe 0x01 #define SID_CmdQue 0x02 #define SID_Linked 0x08 #define SID_Sync 0x10 #define SID_WBus16 0x20 #define SID_WBus32 0x40 #define SID_RelAdr 0x80 #define SID_VENDOR_SIZE 8 char vendor[SID_VENDOR_SIZE]; #define SID_PRODUCT_SIZE 16 char product[SID_PRODUCT_SIZE]; #define SID_REVISION_SIZE 4 char revision[SID_REVISION_SIZE]; /* * The following fields were taken from SCSI Primary Commands - 2 * (SPC-2) Revision 14, Dated 11 November 1999 */ #define SID_VENDOR_SPECIFIC_0_SIZE 20 u_int8_t vendor_specific0[SID_VENDOR_SPECIFIC_0_SIZE]; /* * An extension of SCSI Parallel Specific Values */ #define SID_SPI_IUS 0x01 #define SID_SPI_QAS 0x02 #define SID_SPI_CLOCK_ST 0x00 #define SID_SPI_CLOCK_DT 0x04 #define SID_SPI_CLOCK_DT_ST 0x0C #define SID_SPI_MASK 0x0F uint8_t spi3data; uint8_t reserved2; /* * Version Descriptors, stored 2 byte values. */ uint8_t version1[2]; uint8_t version2[2]; uint8_t version3[2]; uint8_t version4[2]; uint8_t version5[2]; uint8_t version6[2]; uint8_t version7[2]; uint8_t version8[2]; uint8_t reserved3[22]; #define SID_VENDOR_SPECIFIC_1_SIZE 160 uint8_t vendor_specific1[SID_VENDOR_SPECIFIC_1_SIZE]; }; /********************************** Includes **********************************/ /* Host template and function declarations referenced by the template. */ #include "aic7xxx_linux_host.h" /* Core driver definitions */ #include "aic7xxx.h" /* SMP support */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,17) #include #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93) #include #endif #define AIC7XXX_DRIVER_VERSION "6.2.4" /**************************** Front End Queues ********************************/ /* * Data structure used to cast the Linux struct scsi_cmnd to something * that allows us to use the queue macros. The linux structure has * plenty of space to hold the links fields as required by the queue * macros, but the queue macors require them to have the correct type. */ struct ahc_cmd_internal { /* Area owned by the Linux scsi layer. */ uint8_t private[offsetof(struct scsi_cmnd, SCp.Status)]; union { STAILQ_ENTRY(ahc_cmd) ste; LIST_ENTRY(ahc_cmd) le; TAILQ_ENTRY(ahc_cmd) tqe; } links; uint32_t end; }; struct ahc_cmd { union { struct ahc_cmd_internal icmd; struct scsi_cmnd scsi_cmd; } un; }; #define acmd_icmd(cmd) ((cmd)->un.icmd) #define acmd_scsi_cmd(cmd) ((cmd)->un.scsi_cmd) #define acmd_links un.icmd.links /*************************** Device Data Structures ***************************/ /* * A per probed device structure used to deal with some error recovery * scenarios that the Linux mid-layer code just doesn't know how to * handle. The structure allocated for a device only becomes persistant * after a successfully completed inquiry command to the target when * that inquiry data indicates a lun is present. */ TAILQ_HEAD(ahc_busyq, ahc_cmd); typedef enum { AHC_DEV_UNCONFIGURED = 0x01, AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ AHC_DEV_TIMER_ACTIVE = 0x04, /* Our timer is active */ AHC_DEV_ON_RUN_LIST = 0x08, /* Queued to be run later */ AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ AHC_DEV_PERIODIC_OTAG = 0x40 /* Send OTAG to prevent starvation */ } ahc_dev_flags; struct ahc_linux_target; struct ahc_linux_device { TAILQ_ENTRY(ahc_linux_device) links; struct ahc_busyq busyq; /* * The number of transactions currently * queued to the device. */ int active; /* * The currently allowed number of * transactions that can be queued to * the device. Must be signed for * conversion from tagged to untagged * mode where the device may have more * than one outstanding active transaction. */ int openings; /* * A positive count indicates that this * device's queue is halted. */ u_int qfrozen; /* * Cumulative command counter. */ u_long commands_issued; /* * The number of tagged transactions when * running at our current opening level * that have been successfully received by * this device since the last QUEUE FULL. */ u_int tag_success_count; #define AHC_TAG_SUCCESS_INTERVAL 50 ahc_dev_flags flags; /* * The high limit for the tags variable. */ u_int maxtags; /* * The computed number of tags outstanding * at the time of the last QUEUE FULL event. */ u_int tags_on_last_queuefull; /* * How many times we have seen a queue full * with the same number of tags. This is used * to stop our adaptive queue depth algorithm * on devices with a fixed number of tags. */ u_int last_queuefull_same_count; #define AHC_LOCK_TAGS_COUNT 50 /* * How many transactions have been queued * without the device going idle. We use * this statistic to determine when to issue * an ordered tag to prevent transaction * starvation. This statistic is only updated * if the AHC_DEV_PERIODIC_OTAG flag is set * on this device. */ u_int commands_since_idle_or_otag; #define AHC_OTAG_THRESH 500 int lun; struct ahc_linux_target *target; }; struct ahc_linux_target { struct ahc_linux_device *devices[AHC_NUM_LUNS]; int channel; int target; int refcount; struct ahc_transinfo last_tinfo; }; /********************* Definitions Required by the Core ***********************/ /* * Number of SG segments we require. So long as the S/G segments for * a particular transaction are allocated in a physically contiguous * manner and are allocated below 4GB, the number of S/G segments is * unrestricted. */ #define AHC_NSEG 128 /* * Per-SCB OSM storage. */ struct scb_platform_data { struct ahc_linux_device *dev; uint32_t xfer_len; #if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0) uint32_t resid; /* Transfer residual */ #endif }; /* * Define a structure used for each host adapter. All members are * aligned on a boundary >= the size of the member to honor the * alignment restrictions of the various platforms supported by * this driver. */ TAILQ_HEAD(ahc_completeq, ahc_cmd); struct ahc_platform_data { /* * Fields accessed from interrupt context. */ struct ahc_linux_target *targets[AHC_NUM_TARGETS]; TAILQ_HEAD(, ahc_linux_device) device_runq; struct ahc_completeq completeq; #if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,0) spinlock_t spin_lock; #endif u_int qfrozen; struct timer_list reset_timer; struct semaphore eh_sem; struct Scsi_Host *host; /* pointer to scsi host */ uint32_t irq; /* IRQ for this adapter */ uint32_t bios_address; uint32_t mem_busaddr; /* Mem Base Addr */ bus_addr_t hw_dma_mask; }; /************************** OS Utility Wrappers *******************************/ #define printf printk #define M_NOWAIT GFP_ATOMIC #define M_WAITOK 0 #define malloc(size, type, flags) kmalloc(size, flags) #define free(ptr, type) kfree(ptr) static __inline void ahc_delay(long); static __inline void ahc_delay(long usec) { /* * udelay on Linux can have problems for * multi-millisecond waits. Wait at most * 1024us per call. */ while (usec > 0) { udelay(usec % 1024); usec -= 1024; } } /***************************** Low Level I/O **********************************/ #if defined(__powerpc__) || defined(__i386__) || defined(__ia64__) #define MMAPIO #endif static __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port); static __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val); static __inline void ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *, int count); static __inline void ahc_insb(struct ahc_softc * ahc, long port, uint8_t *, int count); static __inline uint8_t ahc_inb(struct ahc_softc * ahc, long port) { uint8_t x; #ifdef MMAPIO if (ahc->tag == BUS_SPACE_MEMIO) { x = readb(ahc->bsh.maddr + port); } else { x = inb(ahc->bsh.ioport + port); } #else x = inb(ahc->bsh.ioport + port); #endif mb(); return (x); } static __inline void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val) { #ifdef MMAPIO if (ahc->tag == BUS_SPACE_MEMIO) { writeb(val, ahc->bsh.maddr + port); } else { outb(val, ahc->bsh.ioport + port); } #else outb(val, ahc->bsh.ioport + port); #endif mb(); } static __inline void ahc_outsb(struct ahc_softc * ahc, long port, uint8_t *array, int count) { int i; /* * There is probably a more efficient way to do this on Linux * but we don't use this for anything speed critical and this * should work. */ for (i = 0; i < count; i++) ahc_outb(ahc, port, *array++); } static __inline void ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count) { int i; /* * There is probably a more efficient way to do this on Linux * but we don't use this for anything speed critical and this * should work. */ for (i = 0; i < count; i++) *array++ = ahc_inb(ahc, port); } /**************************** Initialization **********************************/ int ahc_linux_register_host(struct ahc_softc *, Scsi_Host_Template *); uint64_t ahc_linux_get_memsize(void); /*************************** Pretty Printing **********************************/ struct info_str { char *buffer; int length; off_t offset; int pos; }; void ahc_format_transinfo(struct info_str *info, struct ahc_transinfo *tinfo); /******************************** Locking *************************************/ /* Lock protecting internal data structures */ static __inline void ahc_lockinit(struct ahc_softc *); static __inline void ahc_lock(struct ahc_softc *, unsigned long *flags); static __inline void ahc_unlock(struct ahc_softc *, unsigned long *flags); /* Lock held during command compeletion to the upper layer */ static __inline void ahc_done_lockinit(struct ahc_softc *); static __inline void ahc_done_lock(struct ahc_softc *, unsigned long *flags); static __inline void ahc_done_unlock(struct ahc_softc *, unsigned long *flags); #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,93) static __inline void ahc_lockinit(struct ahc_softc *ahc) { spin_lock_init(&ahc->platform_data->spin_lock); } static __inline void ahc_lock(struct ahc_softc *ahc, unsigned long *flags) { *flags = 0; spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags); } static __inline void ahc_unlock(struct ahc_softc *ahc, unsigned long *flags) { spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags); } static __inline void ahc_done_lockinit(struct ahc_softc *ahc) { /* We don't own the iorequest lock, so we don't initialize it. */ } static __inline void ahc_done_lock(struct ahc_softc *ahc, unsigned long *flags) { *flags = 0; spin_lock_irqsave(&io_request_lock, *flags); } static __inline void ahc_done_unlock(struct ahc_softc *ahc, unsigned long *flags) { spin_unlock_irqrestore(&io_request_lock, *flags); } #else /* LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0) */ ahc_lockinit(struct ahc_softc *ahc) { } static __inline void ahc_lock(struct ahc_softc *ahc, unsigned long *flags) { *flags = 0; save_flags(*flags); cli(); } static __inline void ahc_unlock(struct ahc_softc *ahc, unsigned long *flags) { restore_flags(*flags); } ahc_done_lockinit(struct ahc_softc *ahc) { } static __inline void ahc_done_lock(struct ahc_softc *ahc, unsigned long *flags) { /* * The done lock is always held while * the ahc lock is held so blocking * interrupts again would have no effect. */ } static __inline void ahc_done_unlock(struct ahc_softc *ahc, unsigned long *flags) { } #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0) */ /******************************* PCI Definitions ******************************/ /* * PCIM_xxx: mask to locate subfield in register * PCIR_xxx: config register offset * PCIC_xxx: device class * PCIS_xxx: device subclass * PCIP_xxx: device programming interface * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) * PCID_xxx: device ID */ #define PCIR_DEVVENDOR 0x00 #define PCIR_VENDOR 0x00 #define PCIR_DEVICE 0x02 #define PCIR_COMMAND 0x04 #define PCIM_CMD_PORTEN 0x0001 #define PCIM_CMD_MEMEN 0x0002 #define PCIM_CMD_BUSMASTEREN 0x0004 #define PCIM_CMD_MWRICEN 0x0010 #define PCIM_CMD_PERRESPEN 0x0040 #define PCIR_STATUS 0x06 #define PCIR_REVID 0x08 #define PCIR_PROGIF 0x09 #define PCIR_SUBCLASS 0x0a #define PCIR_CLASS 0x0b #define PCIR_CACHELNSZ 0x0c #define PCIR_LATTIMER 0x0d #define PCIR_HEADERTYPE 0x0e #define PCIM_MFDEV 0x80 #define PCIR_BIST 0x0f #define PCIR_CAP_PTR 0x34 /* config registers for header type 0 devices */ #define PCIR_MAPS 0x10 #define PCIR_SUBVEND_0 0x2c #define PCIR_SUBDEV_0 0x2e #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) extern struct pci_driver aic7xxx_pci_driver; #endif typedef enum { AHC_POWER_STATE_D0, AHC_POWER_STATE_D1, AHC_POWER_STATE_D2, AHC_POWER_STATE_D3 } ahc_power_state; void ahc_power_state_change(struct ahc_softc *ahc, ahc_power_state new_state); /**************************** VL/EISA Routines ********************************/ int aic7770_linux_probe(Scsi_Host_Template *); int aic7770_map_registers(struct ahc_softc *ahc); int aic7770_map_int(struct ahc_softc *ahc, u_int irq); /******************************* PCI Routines *********************************/ /* * We need to use the bios32.h routines if we are kernel version 2.1.92 or less. */ #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,1,92) #if defined(__sparc_v9__) || defined(__powerpc__) #error "PPC and Sparc platforms are only support under 2.1.92 and above" #endif #include #endif int ahc_linux_pci_probe(Scsi_Host_Template *); int ahc_pci_map_registers(struct ahc_softc *ahc); int ahc_pci_map_int(struct ahc_softc *ahc); static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width); static __inline uint32_t ahc_pci_read_config(ahc_dev_softc_t pci, int reg, int width) { switch (width) { case 1: { uint8_t retval; pci_read_config_byte(pci, reg, &retval); return (retval); } case 2: { uint16_t retval; pci_read_config_word(pci, reg, &retval); return (retval); } case 4: { uint32_t retval; pci_read_config_dword(pci, reg, &retval); return (retval); } default: panic("ahc_pci_read_config: Read size too big"); /* NOTREACHED */ return (0); } } static __inline void ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width); static __inline void ahc_pci_write_config(ahc_dev_softc_t pci, int reg, uint32_t value, int width) { switch (width) { case 1: pci_write_config_byte(pci, reg, value); break; case 2: pci_write_config_word(pci, reg, value); break; case 4: pci_write_config_dword(pci, reg, value); break; default: panic("ahc_pci_write_config: Write size too big"); /* NOTREACHED */ } } static __inline int ahc_get_pci_function(ahc_dev_softc_t); static __inline int ahc_get_pci_function(ahc_dev_softc_t pci) { return (PCI_FUNC(pci->devfn)); } static __inline int ahc_get_pci_slot(ahc_dev_softc_t); static __inline int ahc_get_pci_slot(ahc_dev_softc_t pci) { return (PCI_SLOT(pci->devfn)); } static __inline int ahc_get_pci_bus(ahc_dev_softc_t); static __inline int ahc_get_pci_bus(ahc_dev_softc_t pci) { return (pci->bus->number); } static __inline void ahc_flush_device_writes(struct ahc_softc *); static __inline void ahc_flush_device_writes(struct ahc_softc *ahc) { /* XXX Is this sufficient for all architectures??? */ ahc_inb(ahc, INTSTAT); } #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,0) #define pci_map_sg(pdev, sg_list, nseg, direction) (nseg) #define pci_unmap_sg(pdev, sg_list, nseg, direction) #define sg_dma_address(sg) (VIRT_TO_BUS((sg)->address)) #define sg_dma_len(sg) ((sg)->length) #define pci_map_single(pdev, buffer, bufflen, direction) \ (VIRT_TO_BUS(buffer)) #define pci_unmap_single(pdev, buffer, buflen, direction) #endif /*********************** Transaction Access Wrappers **************************/ static __inline void ahc_set_transaction_status(struct scb *, uint32_t); static __inline void ahc_set_transaction_status(struct scb *scb, uint32_t status) { scb->io_ctx->result &= ~(CAM_STATUS_MASK << 16); scb->io_ctx->result |= status << 16; } static __inline void ahc_set_scsi_status(struct scb *, uint32_t); static __inline void ahc_set_scsi_status(struct scb *scb, uint32_t status) { scb->io_ctx->result &= ~0xFFFF; scb->io_ctx->result |= status; } static __inline uint32_t ahc_get_transaction_status(struct scb *); static __inline uint32_t ahc_get_transaction_status(struct scb *scb) { return ((scb->io_ctx->result >> 16) & CAM_STATUS_MASK); } static __inline uint32_t ahc_get_scsi_status(struct scb *); static __inline uint32_t ahc_get_scsi_status(struct scb *scb) { return (scb->io_ctx->result & 0xFFFF); } static __inline void ahc_set_transaction_tag(struct scb *, int, u_int); static __inline void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) { /* * Nothing to do for linux as the incoming transaction * has no concept of tag/non tagged, etc. */ } static __inline u_long ahc_get_transfer_length(struct scb *); static __inline u_long ahc_get_transfer_length(struct scb *scb) { return (scb->platform_data->xfer_len); } static __inline int ahc_get_transfer_dir(struct scb *); static __inline int ahc_get_transfer_dir(struct scb *scb) { #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,40) return (scb->io_ctx->sc_data_direction); #else if (scb->io_ctx->bufflen == 0) return (CAM_DIR_NONE); switch(scb->io_ctx->cmnd[0]) { case 0x08: /* READ(6) */ case 0x28: /* READ(10) */ case 0xA8: /* READ(12) */ return (CAM_DIR_IN); case 0x0A: /* WRITE(6) */ case 0x2A: /* WRITE(10) */ case 0xAA: /* WRITE(12) */ return (CAM_DIR_OUT); default: return (CAM_DIR_NONE); } #endif } static __inline void ahc_set_residual(struct scb *, u_long); static __inline void ahc_set_residual(struct scb *scb, u_long resid) { #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0) scb->io_ctx->resid = resid; #else scb->platform_data->resid = resid; #endif } static __inline void ahc_set_sense_residual(struct scb *, u_long); static __inline void ahc_set_sense_residual(struct scb *scb, u_long resid) { /* This can't be reported in Linux */ } static __inline u_long ahc_get_residual(struct scb *); static __inline u_long ahc_get_residual(struct scb *scb) { #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0) return (scb->io_ctx->resid); #else return (scb->platform_data->resid); #endif } static __inline int ahc_perform_autosense(struct scb *); static __inline int ahc_perform_autosense(struct scb *scb) { /* * We always perform autosense in Linux. * On other platforms this is set on a * per-transaction basis. */ return (1); } static __inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) { return (sizeof(struct scsi_sense_data)); } static __inline void ahc_notify_xfer_settings_change(struct ahc_softc *, struct ahc_devinfo *); static __inline void ahc_notify_xfer_settings_change(struct ahc_softc *ahc, struct ahc_devinfo *devinfo) { /* Nothing to do here for linux */ } static __inline void ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb); static __inline void ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) { ahc->flags &= ~AHC_RESOURCE_SHORTAGE; } int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg); void ahc_platform_free(struct ahc_softc *ahc); void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb); static __inline void ahc_freeze_scb(struct scb *scb); static __inline void ahc_freeze_scb(struct scb *scb) { /* Noting to do here for linux */ } void ahc_platform_set_tags(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, ahc_queue_alg); int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, char channel, int lun, u_int tag, role_t role, uint32_t status); void ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs); void ahc_platform_flushwork(struct ahc_softc *ahc); int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *); void ahc_done(struct ahc_softc*, struct scb*); void ahc_send_async(struct ahc_softc *, char channel, u_int target, u_int lun, ac_code, void *); void ahc_print_path(struct ahc_softc *, struct scb *); void ahc_platform_dump_card_state(struct ahc_softc *ahc); #ifdef CONFIG_PCI #define AHC_PCI_CONFIG 1 #else #define AHC_PCI_CONFIG 0 #endif #define bootverbose aic7xxx_verbose extern int aic7xxx_verbose; #endif /* _AIC7XXX_LINUX_H_ */