* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
- * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#137 $
+ * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#166 $
*
*/
#ifndef _AIC79XX_LINUX_H_
#define _AIC79XX_LINUX_H_
+#include <linux/config.h>
#include <linux/types.h>
#include <linux/blkdev.h>
#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/interrupt.h> /* For tasklet support. */
-#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 ahd
-#include "scsi.h"
-#include <scsi/scsi_host.h>
/* Name space conflict with BSD queue macros */
#ifdef LIST_HEAD
/************************* Forward Declarations *******************************/
struct ahd_softc;
typedef struct pci_dev *ahd_dev_softc_t;
-typedef Scsi_Cmnd *ahd_io_ctx_t;
+typedef struct scsi_cmnd *ahd_io_ctx_t;
/******************************* Byte Order ***********************************/
#define ahd_htobe16(x) cpu_to_be16(x)
#define ahd_le32toh(x) le32_to_cpu(x)
#define ahd_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 uint32_t aic79xx_allow_memio;
-extern int aic79xx_detect_complete;
-extern Scsi_Host_Template aic79xx_driver_template;
+extern struct scsi_host_template aic79xx_driver_template;
/***************************** Bus Space/DMA **********************************/
};
typedef struct ahd_linux_dma_tag* bus_dma_tag_t;
-struct ahd_linux_dmamap
-{
- dma_addr_t bus_addr;
-};
-typedef struct ahd_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 ahd_timer_init init_timer
#define ahd_timer_stop del_timer_sync
typedef void ahd_linux_callback_t (u_long);
-static __inline void ahd_timer_reset(ahd_timer_t *timer, u_int usec,
+static __inline void ahd_timer_reset(ahd_timer_t *timer, int usec,
ahd_callback_t *func, void *arg);
-static __inline void ahd_scb_timer_reset(struct scb *scb, u_int usec);
static __inline void
-ahd_timer_reset(ahd_timer_t *timer, u_int usec, ahd_callback_t *func, void *arg)
+ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
{
struct ahd_softc *ahd;
add_timer(timer);
}
-static __inline void
-ahd_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 AHD_SCSI_HAS_HOST_LOCK 1
-#else
-#define AHD_SCSI_HAS_HOST_LOCK 0
-#endif
-
-#define AIC79XX_DRIVER_VERSION "1.3.11"
-
-/**************************** 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 ahd_cmd_internal {
- /* Area owned by the Linux scsi layer. */
- uint8_t private[offsetof(struct scsi_cmnd, SCp.Status)];
- union {
- STAILQ_ENTRY(ahd_cmd) ste;
- LIST_ENTRY(ahd_cmd) le;
- TAILQ_ENTRY(ahd_cmd) tqe;
- } links;
- uint32_t end;
-};
-
-struct ahd_cmd {
- union {
- struct ahd_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 AIC79XX_DRIVER_VERSION "3.0"
/*************************** Device Data Structures ***************************/
/*
* after a successfully completed inquiry command to the target when
* that inquiry data indicates a lun is present.
*/
-TAILQ_HEAD(ahd_busyq, ahd_cmd);
+
typedef enum {
- AHD_DEV_UNCONFIGURED = 0x01,
AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */
- AHD_DEV_TIMER_ACTIVE = 0x04, /* Our timer is active */
- AHD_DEV_ON_RUN_LIST = 0x08, /* Queued to be run later */
AHD_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */
AHD_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */
AHD_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */
- AHD_DEV_SLAVE_CONFIGURED = 0x80 /* slave_configure() has been called */
} ahd_linux_dev_flags;
struct ahd_linux_target;
struct ahd_linux_device {
TAILQ_ENTRY(ahd_linux_device) links;
- struct ahd_busyq busyq;
/*
* The number of transactions currently
*/
u_int commands_since_idle_or_otag;
#define AHD_OTAG_THRESH 500
-
- int lun;
- Scsi_Device *scsi_device;
- struct ahd_linux_target *target;
};
-typedef enum {
- AHD_DV_REQUIRED = 0x01,
- AHD_INQ_VALID = 0x02,
- AHD_BASIC_DV = 0x04,
- AHD_ENHANCED_DV = 0x08
-} ahd_linux_targ_flags;
-
-/* DV States */
-typedef enum {
- AHD_DV_STATE_EXIT = 0,
- AHD_DV_STATE_INQ_SHORT_ASYNC,
- AHD_DV_STATE_INQ_ASYNC,
- AHD_DV_STATE_INQ_ASYNC_VERIFY,
- AHD_DV_STATE_TUR,
- AHD_DV_STATE_REBD,
- AHD_DV_STATE_INQ_VERIFY,
- AHD_DV_STATE_WEB,
- AHD_DV_STATE_REB,
- AHD_DV_STATE_SU,
- AHD_DV_STATE_BUSY
-} ahd_dv_state;
-
struct ahd_linux_target {
- struct ahd_linux_device *devices[AHD_NUM_LUNS];
- int channel;
- int target;
- int refcount;
+ struct scsi_device *sdev[AHD_NUM_LUNS];
struct ahd_transinfo last_tinfo;
struct ahd_softc *ahd;
- ahd_linux_targ_flags flags;
- struct scsi_inquiry_data *inq_data;
- /*
- * The next "fallback" period to use for narrow/wide transfers.
- */
- uint8_t dv_next_narrow_period;
- uint8_t dv_next_wide_period;
- uint8_t dv_max_width;
- uint8_t dv_max_ppr_options;
- uint8_t dv_last_ppr_options;
- u_int dv_echo_size;
- ahd_dv_state dv_state;
- u_int dv_state_retry;
- uint8_t *dv_buffer;
- uint8_t *dv_buffer1;
-
- /*
- * Cumulative counter of errors.
- */
- u_long errors_detected;
- u_long cmds_since_error;
};
/********************* 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 aic79xx_osm.c ahd_linux_size_nseg() for details.
- */
-extern u_int ahd_linux_nseg;
-#define AHD_NSEG ahd_linux_nseg
-#define AHD_LINUX_MIN_NSEG 64
-#else
#define AHD_NSEG 128
-#endif
/*
* Per-SCB OSM storage.
*/
-typedef enum {
- AHD_SCB_UP_EH_SEM = 0x1
-} ahd_linux_scb_flags;
-
struct scb_platform_data {
struct ahd_linux_device *dev;
dma_addr_t buf_busaddr;
uint32_t xfer_len;
uint32_t sense_resid; /* Auto-Sense residual */
- ahd_linux_scb_flags flags;
};
/*
* alignment restrictions of the various platforms supported by
* this driver.
*/
-typedef enum {
- AHD_DV_WAIT_SIMQ_EMPTY = 0x01,
- AHD_DV_WAIT_SIMQ_RELEASE = 0x02,
- AHD_DV_ACTIVE = 0x04,
- AHD_DV_SHUTDOWN = 0x08,
- AHD_RUN_CMPLT_Q_TIMER = 0x10
-} ahd_linux_softc_flags;
-
-TAILQ_HEAD(ahd_completeq, ahd_cmd);
-
struct ahd_platform_data {
/*
* Fields accessed from interrupt context.
*/
- struct ahd_linux_target *targets[AHD_NUM_TARGETS];
- TAILQ_HEAD(, ahd_linux_device) device_runq;
- struct ahd_completeq completeq;
+ struct scsi_target *starget[AHD_NUM_TARGETS];
spinlock_t spin_lock;
- struct tasklet_struct runq_tasklet;
- u_int qfrozen;
- pid_t dv_pid;
- struct timer_list completeq_timer;
- struct timer_list reset_timer;
- struct timer_list stats_timer;
- struct semaphore eh_sem;
- struct semaphore dv_sem;
- struct semaphore dv_cmd_sem; /* XXX This needs to be in
- * the target struct
- */
- struct scsi_device *dv_scsi_dev;
+ struct completion *eh_done;
struct Scsi_Host *host; /* pointer to scsi host */
#define AHD_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;
- ahd_linux_softc_flags flags;
};
/************************** OS Utility Wrappers *******************************/
/**************************** Initialization **********************************/
int ahd_linux_register_host(struct ahd_softc *,
- Scsi_Host_Template *);
+ struct scsi_host_template *);
uint64_t ahd_linux_get_memsize(void);
struct ahd_transinfo *tinfo);
/******************************** Locking *************************************/
-/* Lock protecting internal data structures */
-static __inline void ahd_lockinit(struct ahd_softc *);
-static __inline void ahd_lock(struct ahd_softc *, unsigned long *flags);
-static __inline void ahd_unlock(struct ahd_softc *, unsigned long *flags);
-
-/* Lock acquisition and release of the above lock in midlayer entry points. */
-static __inline void ahd_midlayer_entrypoint_lock(struct ahd_softc *,
- unsigned long *flags);
-static __inline void ahd_midlayer_entrypoint_unlock(struct ahd_softc *,
- unsigned long *flags);
-
-/* Lock held during command compeletion to the upper layer */
-static __inline void ahd_done_lockinit(struct ahd_softc *);
-static __inline void ahd_done_lock(struct ahd_softc *, unsigned long *flags);
-static __inline void ahd_done_unlock(struct ahd_softc *, unsigned long *flags);
-
-/* Lock held during ahd_list manipulation and ahd softc frees */
-extern spinlock_t ahd_list_spinlock;
-static __inline void ahd_list_lockinit(void);
-static __inline void ahd_list_lock(unsigned long *flags);
-static __inline void ahd_list_unlock(unsigned long *flags);
-
static __inline void
ahd_lockinit(struct ahd_softc *ahd)
{
spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags);
}
-static __inline void
-ahd_midlayer_entrypoint_lock(struct ahd_softc *ahd, 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 AHD_SCSI_HAS_HOST_LOCK == 0
- spin_unlock(&io_request_lock);
- spin_lock(&ahd->platform_data->spin_lock);
-#endif
-}
-
-static __inline void
-ahd_midlayer_entrypoint_unlock(struct ahd_softc *ahd, unsigned long *flags)
-{
-#if AHD_SCSI_HAS_HOST_LOCK == 0
- spin_unlock(&ahd->platform_data->spin_lock);
- spin_lock(&io_request_lock);
-#endif
-}
-
-static __inline void
-ahd_done_lockinit(struct ahd_softc *ahd)
-{
- /*
- * 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
-ahd_done_lock(struct ahd_softc *ahd, unsigned long *flags)
-{
-#if AHD_SCSI_HAS_HOST_LOCK == 0
- spin_lock(&io_request_lock);
-#endif
-}
-
-static __inline void
-ahd_done_unlock(struct ahd_softc *ahd, unsigned long *flags)
-{
-#if AHD_SCSI_HAS_HOST_LOCK == 0
- spin_unlock(&io_request_lock);
-#endif
-}
-
-static __inline void
-ahd_list_lockinit(void)
-{
- spin_lock_init(&ahd_list_spinlock);
-}
-
-static __inline void
-ahd_list_lock(unsigned long *flags)
-{
- spin_lock_irqsave(&ahd_list_spinlock, *flags);
-}
-
-static __inline void
-ahd_list_unlock(unsigned long *flags)
-{
- spin_unlock_irqrestore(&ahd_list_spinlock, *flags);
-}
-
/******************************* PCI Definitions ******************************/
/*
* PCIM_xxx: mask to locate subfield in register
}
/**************************** Proc FS Support *********************************/
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
-int ahd_linux_proc_info(char *, char **, off_t, int, int, int);
-#else
int ahd_linux_proc_info(struct Scsi_Host *, char *, char **,
off_t, int, int);
-#endif
-
-/*************************** Domain Validation ********************************/
-#define AHD_DV_CMD(cmd) ((cmd)->scsi_done == ahd_linux_dv_complete)
-#define AHD_DV_SIMQ_FROZEN(ahd) \
- ((((ahd)->platform_data->flags & AHD_DV_ACTIVE) != 0) \
- && (ahd)->platform_data->qfrozen == 1)
/*********************** Transaction Access Wrappers **************************/
-static __inline void ahd_cmd_set_transaction_status(Scsi_Cmnd *, uint32_t);
+static __inline void ahd_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
static __inline void ahd_set_transaction_status(struct scb *, uint32_t);
-static __inline void ahd_cmd_set_scsi_status(Scsi_Cmnd *, uint32_t);
+static __inline void ahd_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
static __inline void ahd_set_scsi_status(struct scb *, uint32_t);
-static __inline uint32_t ahd_cmd_get_transaction_status(Scsi_Cmnd *cmd);
+static __inline uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd);
static __inline uint32_t ahd_get_transaction_status(struct scb *);
-static __inline uint32_t ahd_cmd_get_scsi_status(Scsi_Cmnd *cmd);
+static __inline uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd);
static __inline uint32_t ahd_get_scsi_status(struct scb *);
static __inline void ahd_set_transaction_tag(struct scb *, int, u_int);
static __inline u_long ahd_get_transfer_length(struct scb *);
static __inline void ahd_freeze_scb(struct scb *scb);
static __inline
-void ahd_cmd_set_transaction_status(Scsi_Cmnd *cmd, uint32_t status)
+void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
{
cmd->result &= ~(CAM_STATUS_MASK << 16);
cmd->result |= status << 16;
}
static __inline
-void ahd_cmd_set_scsi_status(Scsi_Cmnd *cmd, uint32_t status)
+void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
{
cmd->result &= ~0xFFFF;
cmd->result |= status;
}
static __inline
-uint32_t ahd_cmd_get_transaction_status(Scsi_Cmnd *cmd)
+uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd)
{
return ((cmd->result >> 16) & CAM_STATUS_MASK);
}
}
static __inline
-uint32_t ahd_cmd_get_scsi_status(Scsi_Cmnd *cmd)
+uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd)
{
return (cmd->result & 0xFFFF);
}
role_t role, uint32_t status);
irqreturn_t
ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs);
-void ahd_platform_flushwork(struct ahd_softc *ahd);
-int ahd_softc_comp(struct ahd_softc *, struct ahd_softc *);
void ahd_done(struct ahd_softc*, struct scb*);
void ahd_send_async(struct ahd_softc *, char channel,
u_int target, u_int lun, ac_code, void *);
void ahd_print_path(struct ahd_softc *, struct scb *);
-void ahd_platform_dump_card_state(struct ahd_softc *ahd);
#ifdef CONFIG_PCI
#define AHD_PCI_CONFIG 1
git://git.onelab.eu / linux-2.6.git / blobdiff