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-rw-r--r--include/linux/ata.h12
-rw-r--r--include/linux/libata.h98
-rw-r--r--include/scsi/scsi_eh.h3
3 files changed, 95 insertions, 18 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 94f77cce27f..a8155ca4947 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -302,4 +302,16 @@ static inline int ata_ok(u8 status)
== ATA_DRDY);
}
+static inline int lba_28_ok(u64 block, u32 n_block)
+{
+ /* check the ending block number */
+ return ((block + n_block - 1) < ((u64)1 << 28)) && (n_block <= 256);
+}
+
+static inline int lba_48_ok(u64 block, u32 n_block)
+{
+ /* check the ending block number */
+ return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536);
+}
+
#endif /* __LINUX_ATA_H__ */
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 9e5db2949c5..474cdfa35d1 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -35,7 +35,8 @@
#include <linux/workqueue.h>
/*
- * compile-time options
+ * compile-time options: to be removed as soon as all the drivers are
+ * converted to the new debugging mechanism
*/
#undef ATA_DEBUG /* debugging output */
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
@@ -71,6 +72,38 @@
}
#endif
+/* NEW: debug levels */
+#define HAVE_LIBATA_MSG 1
+
+enum {
+ ATA_MSG_DRV = 0x0001,
+ ATA_MSG_INFO = 0x0002,
+ ATA_MSG_PROBE = 0x0004,
+ ATA_MSG_WARN = 0x0008,
+ ATA_MSG_MALLOC = 0x0010,
+ ATA_MSG_CTL = 0x0020,
+ ATA_MSG_INTR = 0x0040,
+ ATA_MSG_ERR = 0x0080,
+};
+
+#define ata_msg_drv(p) ((p)->msg_enable & ATA_MSG_DRV)
+#define ata_msg_info(p) ((p)->msg_enable & ATA_MSG_INFO)
+#define ata_msg_probe(p) ((p)->msg_enable & ATA_MSG_PROBE)
+#define ata_msg_warn(p) ((p)->msg_enable & ATA_MSG_WARN)
+#define ata_msg_malloc(p) ((p)->msg_enable & ATA_MSG_MALLOC)
+#define ata_msg_ctl(p) ((p)->msg_enable & ATA_MSG_CTL)
+#define ata_msg_intr(p) ((p)->msg_enable & ATA_MSG_INTR)
+#define ata_msg_err(p) ((p)->msg_enable & ATA_MSG_ERR)
+
+static inline u32 ata_msg_init(int dval, int default_msg_enable_bits)
+{
+ if (dval < 0 || dval >= (sizeof(u32) * 8))
+ return default_msg_enable_bits; /* should be 0x1 - only driver info msgs */
+ if (!dval)
+ return 0;
+ return (1 << dval) - 1;
+}
+
/* defines only for the constants which don't work well as enums */
#define ATA_TAG_POISON 0xfafbfcfdU
@@ -115,9 +148,9 @@ enum {
ATA_FLAG_PORT_DISABLED = (1 << 2), /* port is disabled, ignore it */
ATA_FLAG_SATA = (1 << 3),
ATA_FLAG_NO_LEGACY = (1 << 4), /* no legacy mode check */
- ATA_FLAG_SRST = (1 << 5), /* use ATA SRST, not E.D.D. */
+ ATA_FLAG_SRST = (1 << 5), /* (obsolete) use ATA SRST, not E.D.D. */
ATA_FLAG_MMIO = (1 << 6), /* use MMIO, not PIO */
- ATA_FLAG_SATA_RESET = (1 << 7), /* use COMRESET */
+ ATA_FLAG_SATA_RESET = (1 << 7), /* (obsolete) use COMRESET */
ATA_FLAG_PIO_DMA = (1 << 8), /* PIO cmds via DMA */
ATA_FLAG_NOINTR = (1 << 9), /* FIXME: Remove this once
* proper HSM is in place. */
@@ -189,10 +222,15 @@ enum hsm_task_states {
};
enum ata_completion_errors {
- AC_ERR_OTHER = (1 << 0),
- AC_ERR_DEV = (1 << 1),
- AC_ERR_ATA_BUS = (1 << 2),
- AC_ERR_HOST_BUS = (1 << 3),
+ AC_ERR_DEV = (1 << 0), /* device reported error */
+ AC_ERR_HSM = (1 << 1), /* host state machine violation */
+ AC_ERR_TIMEOUT = (1 << 2), /* timeout */
+ AC_ERR_MEDIA = (1 << 3), /* media error */
+ AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */
+ AC_ERR_HOST_BUS = (1 << 5), /* host bus error */
+ AC_ERR_SYSTEM = (1 << 6), /* system error */
+ AC_ERR_INVALID = (1 << 7), /* invalid argument */
+ AC_ERR_OTHER = (1 << 8), /* unknown */
};
/* forward declarations */
@@ -202,7 +240,9 @@ struct ata_port;
struct ata_queued_cmd;
/* typedefs */
-typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
+typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
+typedef int (*ata_reset_fn_t)(struct ata_port *, int, unsigned int *);
+typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *);
struct ata_ioports {
unsigned long cmd_addr;
@@ -359,6 +399,9 @@ struct ata_port {
unsigned int hsm_task_state;
unsigned long pio_task_timeout;
+ u32 msg_enable;
+ struct list_head eh_done_q;
+
void *private_data;
};
@@ -378,7 +421,9 @@ struct ata_port_operations {
u8 (*check_altstatus)(struct ata_port *ap);
void (*dev_select)(struct ata_port *ap, unsigned int device);
- void (*phy_reset) (struct ata_port *ap);
+ void (*phy_reset) (struct ata_port *ap); /* obsolete */
+ int (*probe_reset) (struct ata_port *ap, unsigned int *classes);
+
void (*post_set_mode) (struct ata_port *ap);
int (*check_atapi_dma) (struct ata_queued_cmd *qc);
@@ -387,7 +432,7 @@ struct ata_port_operations {
void (*bmdma_start) (struct ata_queued_cmd *qc);
void (*qc_prep) (struct ata_queued_cmd *qc);
- int (*qc_issue) (struct ata_queued_cmd *qc);
+ unsigned int (*qc_issue) (struct ata_queued_cmd *qc);
void (*eng_timeout) (struct ata_port *ap);
@@ -435,6 +480,14 @@ extern void ata_port_probe(struct ata_port *);
extern void __sata_phy_reset(struct ata_port *ap);
extern void sata_phy_reset(struct ata_port *ap);
extern void ata_bus_reset(struct ata_port *ap);
+extern int ata_drive_probe_reset(struct ata_port *ap,
+ ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
+ ata_postreset_fn_t postreset, unsigned int *classes);
+extern int ata_std_softreset(struct ata_port *ap, int verbose,
+ unsigned int *classes);
+extern int sata_std_hardreset(struct ata_port *ap, int verbose,
+ unsigned int *class);
+extern void ata_std_postreset(struct ata_port *ap, unsigned int *classes);
extern void ata_port_disable(struct ata_port *);
extern void ata_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI
@@ -450,6 +503,8 @@ extern int ata_scsi_detect(struct scsi_host_template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
extern int ata_scsi_error(struct Scsi_Host *host);
+extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
+extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
extern int ata_scsi_release(struct Scsi_Host *host);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
extern int ata_scsi_device_resume(struct scsi_device *);
@@ -457,6 +512,9 @@ extern int ata_scsi_device_suspend(struct scsi_device *);
extern int ata_device_resume(struct ata_port *, struct ata_device *);
extern int ata_device_suspend(struct ata_port *, struct ata_device *);
extern int ata_ratelimit(void);
+extern unsigned int ata_busy_sleep(struct ata_port *ap,
+ unsigned long timeout_pat,
+ unsigned long timeout);
/*
* Default driver ops implementations
@@ -470,12 +528,13 @@ extern void ata_std_dev_select (struct ata_port *ap, unsigned int device);
extern u8 ata_check_status(struct ata_port *ap);
extern u8 ata_altstatus(struct ata_port *ap);
extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
+extern int ata_std_probe_reset(struct ata_port *ap, unsigned int *classes);
extern int ata_port_start (struct ata_port *ap);
extern void ata_port_stop (struct ata_port *ap);
extern void ata_host_stop (struct ata_host_set *host_set);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
-extern int ata_qc_issue_prot(struct ata_queued_cmd *qc);
+extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
unsigned int buflen);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
@@ -645,9 +704,9 @@ static inline u8 ata_wait_idle(struct ata_port *ap)
if (status & (ATA_BUSY | ATA_DRQ)) {
unsigned long l = ap->ioaddr.status_addr;
- printk(KERN_WARNING
- "ATA: abnormal status 0x%X on port 0x%lX\n",
- status, l);
+ if (ata_msg_warn(ap))
+ printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%lX\n",
+ status, l);
}
return status;
@@ -739,7 +798,8 @@ static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
status = ata_busy_wait(ap, bits, 1000);
if (status & bits)
- DPRINTK("abnormal status 0x%X\n", status);
+ if (ata_msg_err(ap))
+ printk(KERN_ERR "abnormal status 0x%X\n", status);
/* get controller status; clear intr, err bits */
if (ap->flags & ATA_FLAG_MMIO) {
@@ -757,8 +817,10 @@ static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
post_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
}
- VPRINTK("irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
- host_stat, post_stat, status);
+ if (ata_msg_intr(ap))
+ printk(KERN_INFO "%s: irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
+ __FUNCTION__,
+ host_stat, post_stat, status);
return status;
}
@@ -795,7 +857,7 @@ static inline int ata_try_flush_cache(const struct ata_device *dev)
static inline unsigned int ac_err_mask(u8 status)
{
if (status & ATA_BUSY)
- return AC_ERR_ATA_BUS;
+ return AC_ERR_HSM;
if (status & (ATA_ERR | ATA_DF))
return AC_ERR_DEV;
return 0;
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index fabd879c2f2..d160880b2a8 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -35,6 +35,9 @@ static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
}
+extern void scsi_eh_finish_cmd(struct scsi_cmnd *scmd,
+ struct list_head *done_q);
+extern void scsi_eh_flush_done_q(struct list_head *done_q);
extern void scsi_report_bus_reset(struct Scsi_Host *, int);
extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
extern int scsi_block_when_processing_errors(struct scsi_device *);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-25 14:29:08 +0000