#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/pci.h>
-#include <linux/smp_lock.h>
-#include <linux/version.h>
#include <linux/interrupt.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <asm/byteorder.h>
#include <asm/io.h>
-#include <linux/config.h>
-#include <linux/slab.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_spi.h>
/* Core SCSI definitions */
#define AIC_LIB_PREFIX ahc
-#include "scsi.h"
-#include <scsi/scsi_host.h>
/* Name space conflict with BSD queue macros */
#ifdef LIST_HEAD
/************************* Forward Declarations *******************************/
struct ahc_softc;
typedef struct pci_dev *ahc_dev_softc_t;
-typedef Scsi_Cmnd *ahc_io_ctx_t;
+typedef struct scsi_cmnd *ahc_io_ctx_t;
/******************************* Byte Order ***********************************/
#define ahc_htobe16(x) cpu_to_be16(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 u_int aic7xxx_no_probe;
extern u_int aic7xxx_allow_memio;
-extern int aic7xxx_detect_complete;
-extern Scsi_Host_Template aic7xxx_driver_template;
+extern struct scsi_host_template aic7xxx_driver_template;
/***************************** Bus Space/DMA **********************************/
};
typedef struct ahc_linux_dma_tag* bus_dma_tag_t;
-struct ahc_linux_dmamap
-{
- dma_addr_t bus_addr;
-};
-typedef struct ahc_linux_dmamap* bus_dmamap_t;
+typedef dma_addr_t bus_dmamap_t;
typedef int bus_dma_filter_t(void*, dma_addr_t);
typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
*/
#define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)
-/************************** Timer DataStructures ******************************/
-typedef struct timer_list ahc_timer_t;
-
/********************************** Includes **********************************/
#ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT
#define AIC_DEBUG_REGISTERS 1
#include "aic7xxx.h"
/***************************** Timer Facilities *******************************/
-#define ahc_timer_init init_timer
-#define ahc_timer_stop del_timer_sync
-typedef void ahc_linux_callback_t (u_long);
-static __inline void ahc_timer_reset(ahc_timer_t *timer, int usec,
- ahc_callback_t *func, void *arg);
-static __inline void ahc_scb_timer_reset(struct scb *scb, u_int usec);
-
-static __inline void
-ahc_timer_reset(ahc_timer_t *timer, int usec, ahc_callback_t *func, void *arg)
-{
- struct ahc_softc *ahc;
-
- ahc = (struct ahc_softc *)arg;
- del_timer(timer);
- timer->data = (u_long)arg;
- timer->expires = jiffies + (usec * HZ)/1000000;
- timer->function = (ahc_linux_callback_t*)func;
- add_timer(timer);
-}
-
static __inline void
ahc_scb_timer_reset(struct scb *scb, u_int usec)
{
- mod_timer(&scb->io_ctx->eh_timeout, jiffies + (usec * HZ)/1000000);
}
/***************************** SMP support ************************************/
#include <linux/spinlock.h>
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) || defined(SCSI_HAS_HOST_LOCK))
-#define AHC_SCSI_HAS_HOST_LOCK 1
-#else
-#define AHC_SCSI_HAS_HOST_LOCK 0
-#endif
-
-#define AIC7XXX_DRIVER_VERSION "6.2.36"
-
-/**************************** 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
+#define AIC7XXX_DRIVER_VERSION "7.0"
/*************************** Device Data Structures ***************************/
/*
* 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_SLAVE_CONFIGURED = 0x80 /* slave_configure() has been called */
} ahc_linux_dev_flags;
-struct ahc_linux_target;
struct ahc_linux_device {
- TAILQ_ENTRY(ahc_linux_device) links;
-
/*
* The number of transactions currently
* queued to the device.
ahc_linux_dev_flags flags;
/*
- * Per device timer.
- */
- struct timer_list timer;
-
- /*
* The high limit for the tags variable.
*/
u_int maxtags;
*/
u_int commands_since_idle_or_otag;
#define AHC_OTAG_THRESH 500
-
- int lun;
- Scsi_Device *scsi_device;
- 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;
- struct ahc_softc *ahc;
};
/********************* Definitions Required by the Core ***********************/
* manner and are allocated below 4GB, the number of S/G segments is
* unrestricted.
*/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-/*
- * We dynamically adjust the number of segments in pre-2.5 kernels to
- * avoid fragmentation issues in the SCSI mid-layer's private memory
- * allocator. See aic7xxx_osm.c ahc_linux_size_nseg() for details.
- */
-extern u_int ahc_linux_nseg;
-#define AHC_NSEG ahc_linux_nseg
-#define AHC_LINUX_MIN_NSEG 64
-#else
#define AHC_NSEG 128
-#endif
/*
* Per-SCB OSM storage.
*/
-typedef enum {
- AHC_UP_EH_SEMAPHORE = 0x1
-} ahc_linux_scb_flags;
-
struct scb_platform_data {
struct ahc_linux_device *dev;
dma_addr_t buf_busaddr;
uint32_t xfer_len;
uint32_t sense_resid; /* Auto-Sense residual */
- ahc_linux_scb_flags flags;
};
/*
* alignment restrictions of the various platforms supported by
* this driver.
*/
-typedef enum {
- AHC_RUN_CMPLT_Q_TIMER = 0x10
-} ahc_linux_softc_flags;
-
-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;
+ struct scsi_target *starget[AHC_NUM_TARGETS];
spinlock_t spin_lock;
u_int qfrozen;
- struct timer_list completeq_timer;
- struct timer_list reset_timer;
- struct semaphore eh_sem;
+ struct completion *eh_done;
struct Scsi_Host *host; /* pointer to scsi host */
#define AHC_LINUX_NOIRQ ((uint32_t)~0)
uint32_t irq; /* IRQ for this adapter */
uint32_t bios_address;
- uint32_t mem_busaddr; /* Mem Base Addr */
- uint64_t hw_dma_mask;
- ahc_linux_softc_flags flags;
+ resource_size_t mem_busaddr; /* Mem Base Addr */
};
/************************** OS Utility Wrappers *******************************/
#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;
- }
-}
+void ahc_delay(long);
/***************************** Low Level I/O **********************************/
-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;
-
- if (ahc->tag == BUS_SPACE_MEMIO) {
- x = readb(ahc->bsh.maddr + port);
- } else {
- x = inb(ahc->bsh.ioport + port);
- }
- mb();
- return (x);
-}
-
-static __inline void
-ahc_outb(struct ahc_softc * ahc, long port, uint8_t val)
-{
- if (ahc->tag == BUS_SPACE_MEMIO) {
- writeb(val, ahc->bsh.maddr + port);
- } else {
- outb(val, ahc->bsh.ioport + port);
- }
- 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);
-}
+uint8_t ahc_inb(struct ahc_softc * ahc, long port);
+void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
+void ahc_outsb(struct ahc_softc * ahc, long port,
+ uint8_t *, int count);
+void ahc_insb(struct ahc_softc * ahc, long port,
+ uint8_t *, int count);
/**************************** Initialization **********************************/
int ahc_linux_register_host(struct ahc_softc *,
- Scsi_Host_Template *);
-
-uint64_t ahc_linux_get_memsize(void);
+ struct scsi_host_template *);
/*************************** Pretty Printing **********************************/
struct info_str {
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 acquisition and release of the above lock in midlayer entry points. */
-static __inline void ahc_midlayer_entrypoint_lock(struct ahc_softc *,
- unsigned long *flags);
-static __inline void ahc_midlayer_entrypoint_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);
-
-/* Lock held during ahc_list manipulation and ahc softc frees */
-extern spinlock_t ahc_list_spinlock;
-static __inline void ahc_list_lockinit(void);
-static __inline void ahc_list_lock(unsigned long *flags);
-static __inline void ahc_list_unlock(unsigned long *flags);
static __inline void
ahc_lockinit(struct ahc_softc *ahc)
spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
}
-static __inline void
-ahc_midlayer_entrypoint_lock(struct ahc_softc *ahc, unsigned long *flags)
-{
- /*
- * In 2.5.X and some 2.4.X versions, the midlayer takes our
- * lock just before calling us, so we avoid locking again.
- * For other kernel versions, the io_request_lock is taken
- * just before our entry point is called. In this case, we
- * trade the io_request_lock for our per-softc lock.
- */
-#if AHC_SCSI_HAS_HOST_LOCK == 0
- spin_unlock(&io_request_lock);
- spin_lock(&ahc->platform_data->spin_lock);
-#endif
-}
-
-static __inline void
-ahc_midlayer_entrypoint_unlock(struct ahc_softc *ahc, unsigned long *flags)
-{
-#if AHC_SCSI_HAS_HOST_LOCK == 0
- spin_unlock(&ahc->platform_data->spin_lock);
- spin_lock(&io_request_lock);
-#endif
-}
-
-static __inline void
-ahc_done_lockinit(struct ahc_softc *ahc)
-{
- /*
- * In 2.5.X, our own lock is held during completions.
- * In previous versions, the io_request_lock is used.
- * In either case, we can't initialize this lock again.
- */
-}
-
-static __inline void
-ahc_done_lock(struct ahc_softc *ahc, unsigned long *flags)
-{
-#if AHC_SCSI_HAS_HOST_LOCK == 0
- spin_lock_irqsave(&io_request_lock, *flags);
-#endif
-}
-
-static __inline void
-ahc_done_unlock(struct ahc_softc *ahc, unsigned long *flags)
-{
-#if AHC_SCSI_HAS_HOST_LOCK == 0
- spin_unlock_irqrestore(&io_request_lock, *flags);
-#endif
-}
-
-static __inline void
-ahc_list_lockinit(void)
-{
- spin_lock_init(&ahc_list_spinlock);
-}
-
-static __inline void
-ahc_list_lock(unsigned long *flags)
-{
- spin_lock_irqsave(&ahc_list_spinlock, *flags);
-}
-
-static __inline void
-ahc_list_unlock(unsigned long *flags)
-{
- spin_unlock_irqrestore(&ahc_list_spinlock, *flags);
-}
-
/******************************* PCI Definitions ******************************/
/*
* PCIM_xxx: mask to locate subfield in register
#define PCIR_SUBVEND_0 0x2c
#define PCIR_SUBDEV_0 0x2e
-extern struct pci_driver aic7xxx_pci_driver;
-
typedef enum
{
AHC_POWER_STATE_D0,
} ahc_power_state;
/**************************** VL/EISA Routines ********************************/
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) \
- && (defined(__i386__) || defined(__alpha__)) \
- && (!defined(CONFIG_EISA)))
-#define CONFIG_EISA
-#endif
-
#ifdef CONFIG_EISA
-extern uint32_t aic7xxx_probe_eisa_vl;
int ahc_linux_eisa_init(void);
void ahc_linux_eisa_exit(void);
int aic7770_map_registers(struct ahc_softc *ahc,
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,
+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 */
- }
-}
+void ahc_pci_write_config(ahc_dev_softc_t pci,
+ int reg, uint32_t value,
+ int width);
static __inline int ahc_get_pci_function(ahc_dev_softc_t);
static __inline int
}
/**************************** Proc FS Support *********************************/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-int ahc_linux_proc_info(char *, char **, off_t, int, int, int);
-#else
int ahc_linux_proc_info(struct Scsi_Host *, char *, char **,
off_t, int, int);
-#endif
/*************************** Domain Validation ********************************/
/*********************** Transaction Access Wrappers *************************/
-static __inline void ahc_cmd_set_transaction_status(Scsi_Cmnd *, uint32_t);
+static __inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
static __inline void ahc_set_transaction_status(struct scb *, uint32_t);
-static __inline void ahc_cmd_set_scsi_status(Scsi_Cmnd *, uint32_t);
+static __inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
static __inline void ahc_set_scsi_status(struct scb *, uint32_t);
-static __inline uint32_t ahc_cmd_get_transaction_status(Scsi_Cmnd *cmd);
+static __inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
static __inline uint32_t ahc_get_transaction_status(struct scb *);
-static __inline uint32_t ahc_cmd_get_scsi_status(Scsi_Cmnd *cmd);
+static __inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
static __inline uint32_t ahc_get_scsi_status(struct scb *);
static __inline void ahc_set_transaction_tag(struct scb *, int, u_int);
static __inline u_long ahc_get_transfer_length(struct scb *);
static __inline void ahc_freeze_scb(struct scb *scb);
static __inline
-void ahc_cmd_set_transaction_status(Scsi_Cmnd *cmd, uint32_t status)
+void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
{
cmd->result &= ~(CAM_STATUS_MASK << 16);
cmd->result |= status << 16;
}
static __inline
-void ahc_cmd_set_scsi_status(Scsi_Cmnd *cmd, uint32_t status)
+void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
{
cmd->result &= ~0xFFFF;
cmd->result |= status;
}
static __inline
-uint32_t ahc_cmd_get_transaction_status(Scsi_Cmnd *cmd)
+uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
{
return ((cmd->result >> 16) & CAM_STATUS_MASK);
}
}
static __inline
-uint32_t ahc_cmd_get_scsi_status(Scsi_Cmnd *cmd)
+uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
{
return (cmd->result & 0xFFFF);
}
static __inline
void ahc_set_residual(struct scb *scb, u_long resid)
{
- scb->io_ctx->resid = resid;
+ scsi_set_resid(scb->io_ctx, resid);
}
static __inline
static __inline
u_long ahc_get_residual(struct scb *scb)
{
- return (scb->io_ctx->resid);
+ return scsi_get_resid(scb->io_ctx);
}
static __inline
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_set_tags(struct ahc_softc *ahc,
+void ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
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);
irqreturn_t
- ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
+ ahc_linux_isr(int irq, void *dev_id);
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 *);
+ u_int target, u_int lun, ac_code);
void ahc_print_path(struct ahc_softc *, struct scb *);
void ahc_platform_dump_card_state(struct ahc_softc *ahc);