1 files changed, 60 insertions, 30 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 66c3100c2b94..1ef3d3901b47 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -36,6 +36,8 @@
 #include <linux/workqueue.h>
 #include <scsi/scsi_host.h>
 
+#include <asm/libata-portmap.h>
+
 /*
  * compile-time options: to be removed as soon as all the drivers are
  * converted to the new debugging mechanism
@@ -44,7 +46,7 @@
 #undef ATA_VERBOSE_DEBUG        /* yet more debugging output */
 #undef ATA_IRQ_TRAP             /* define to ack screaming irqs */
 #undef ATA_NDEBUG               /* define to disable quick runtime checks */
-#undef ATA_ENABLE_PATA          /* define to enable PATA support in some
+#define ATA_ENABLE_PATA         /* define to enable PATA support in some
                                  * low-level drivers */
 
 
@@ -112,8 +114,6 @@ enum {
         /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */
         ATA_MAX_QUEUE           = 32,
         ATA_TAG_INTERNAL        = ATA_MAX_QUEUE - 1,
-        ATA_MAX_SECTORS         = 200,  /* FIXME */
-        ATA_MAX_SECTORS_LBA48   = 65535,
         ATA_MAX_BUS             = 2,
         ATA_DEF_BUSY_WAIT       = 10000,
         ATA_SHORT_PAUSE         = (HZ >> 6) + 1,
@@ -197,8 +197,8 @@ enum {
         ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */
 
         /* host set flags */
-        ATA_HOST_SIMPLEX        = (1 << 0),     /* Host is simplex, one DMA channel per host_set only */
-        
+        ATA_HOST_SIMPLEX        = (1 << 0),     /* Host is simplex, one DMA channel per host only */
+
         /* various lengths of time */
         ATA_TMOUT_BOOT          = 30 * HZ,      /* heuristic */
         ATA_TMOUT_BOOT_QUICK    = 7 * HZ,       /* heuristic */
@@ -225,8 +225,8 @@ enum {
         /* encoding various smaller bitmaps into a single
          * unsigned int bitmap
          */
-        ATA_BITS_PIO            = 5,
-        ATA_BITS_MWDMA          = 3,
+        ATA_BITS_PIO            = 7,
+        ATA_BITS_MWDMA          = 5,
         ATA_BITS_UDMA           = 8,
 
         ATA_SHIFT_PIO           = 0,
@@ -289,6 +289,11 @@ enum {
          * most devices.
          */
         ATA_SPINUP_WAIT         = 8000,
+        
+        /* Horkage types. May be set by libata or controller on drives
+           (some horkage may be drive/controller pair dependant */
+
+        ATA_HORKAGE_DIAGNOSTIC  = (1 << 0),     /* Failed boot diag */
 };
 
 enum hsm_task_states {
@@ -350,23 +355,32 @@ struct ata_probe_ent {
         struct scsi_host_template *sht;
         struct ata_ioports      port[ATA_MAX_PORTS];
         unsigned int            n_ports;
-        unsigned int            hard_port_no;
+        unsigned int            dummy_port_mask;
         unsigned int            pio_mask;
         unsigned int            mwdma_mask;
         unsigned int            udma_mask;
-        unsigned int            legacy_mode;
         unsigned long           irq;
+        unsigned long           irq2;
         unsigned int            irq_flags;
-        unsigned long           host_flags;
-        unsigned long           host_set_flags;
+        unsigned long           port_flags;
+        unsigned long           _host_flags;
         void __iomem            *mmio_base;
         void                    *private_data;
+
+        /* port_info for the secondary port.  Together with irq2, it's
+         * used to implement non-uniform secondary port.  Currently,
+         * the only user is ata_piix combined mode.  This workaround
+         * will be removed together with ata_probe_ent when init model
+         * is updated.
+         */
+        const struct ata_port_info *pinfo2;
 };
 
-struct ata_host_set {
+struct ata_host {
         spinlock_t              lock;
         struct device           *dev;
         unsigned long           irq;
+        unsigned long           irq2;
         void __iomem            *mmio_base;
         unsigned int            n_ports;
         void                    *private_data;
@@ -374,7 +388,6 @@ struct ata_host_set {
         unsigned long           flags;
         int                     simplex_claimed;        /* Keep seperate in case we
                                                            ever need to do this locked */
-        struct ata_host_set     *next;          /* for legacy mode */
         struct ata_port         *ports[0];
 };
 
@@ -420,7 +433,7 @@ struct ata_queued_cmd {
         void                    *private_data;
 };
 
-struct ata_host_stats {
+struct ata_port_stats {
         unsigned long           unhandled_irq;
         unsigned long           idle_irq;
         unsigned long           rw_reqbuf;
@@ -468,6 +481,7 @@ struct ata_device {
 
         /* error history */
         struct ata_ering        ering;
+        unsigned int            horkage;        /* List of broken features */
 };
 
 /* Offset into struct ata_device.  Fields above it are maintained
@@ -498,14 +512,13 @@ struct ata_eh_context {
 };
 
 struct ata_port {
-        struct Scsi_Host        *host;  /* our co-allocated scsi host */
+        struct Scsi_Host        *scsi_host; /* our co-allocated scsi host */
         const struct ata_port_operations *ops;
         spinlock_t              *lock;
         unsigned long           flags;  /* ATA_FLAG_xxx */
         unsigned int            pflags; /* ATA_PFLAG_xxx */
         unsigned int            id;     /* unique id req'd by scsi midlyr */
         unsigned int            port_no; /* unique port #; from zero */
-        unsigned int            hard_port_no;   /* hardware port #; from zero */
 
         struct ata_prd          *prd;    /* our SG list */
         dma_addr_t              prd_dma; /* and its DMA mapping */
@@ -524,7 +537,7 @@ struct ata_port {
         unsigned int            hw_sata_spd_limit;
         unsigned int            sata_spd_limit; /* SATA PHY speed limit */
 
-        /* record runtime error info, protected by host_set lock */
+        /* record runtime error info, protected by host lock */
         struct ata_eh_info      eh_info;
         /* EH context owned by EH */
         struct ata_eh_context   eh_context;
@@ -538,8 +551,8 @@ struct ata_port {
         unsigned int            active_tag;
         u32                     sactive;
 
-        struct ata_host_stats   stats;
-        struct ata_host_set     *host_set;
+        struct ata_port_stats   stats;
+        struct ata_host         *host;
         struct device           *dev;
 
         struct work_struct      port_task;
@@ -615,7 +628,7 @@ struct ata_port_operations {
         int (*port_start) (struct ata_port *ap);
         void (*port_stop) (struct ata_port *ap);
 
-        void (*host_stop) (struct ata_host_set *host_set);
+        void (*host_stop) (struct ata_host *host);
 
         void (*bmdma_stop) (struct ata_queued_cmd *qc);
         u8   (*bmdma_status) (struct ata_port *ap);
@@ -623,7 +636,7 @@ struct ata_port_operations {
 
 struct ata_port_info {
         struct scsi_host_template       *sht;
-        unsigned long           host_flags;
+        unsigned long           flags;
         unsigned long           pio_mask;
         unsigned long           mwdma_mask;
         unsigned long           udma_mask;
@@ -649,6 +662,8 @@ extern const unsigned long sata_deb_timing_normal[];
 extern const unsigned long sata_deb_timing_hotplug[];
 extern const unsigned long sata_deb_timing_long[];
 
+extern const struct ata_port_operations ata_dummy_port_ops;
+
 static inline const unsigned long *
 sata_ehc_deb_timing(struct ata_eh_context *ehc)
 {
@@ -658,6 +673,11 @@ sata_ehc_deb_timing(struct ata_eh_context *ehc)
                 return sata_deb_timing_normal;
 }
 
+static inline int ata_port_is_dummy(struct ata_port *ap)
+{
+        return ap->ops == &ata_dummy_port_ops;
+}
+
 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);
@@ -676,19 +696,30 @@ extern void ata_std_ports(struct ata_ioports *ioaddr);
 extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
                              unsigned int n_ports);
 extern void ata_pci_remove_one (struct pci_dev *pdev);
-extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t state);
+extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t mesg);
 extern void ata_pci_device_do_resume(struct pci_dev *pdev);
-extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t state);
+extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
 extern int ata_pci_device_resume(struct pci_dev *pdev);
 extern int ata_pci_clear_simplex(struct pci_dev *pdev);
 #endif /* CONFIG_PCI */
 extern int ata_device_add(const struct ata_probe_ent *ent);
 extern void ata_port_detach(struct ata_port *ap);
-extern void ata_host_set_remove(struct ata_host_set *host_set);
+extern void ata_host_init(struct ata_host *, struct device *,
+                          unsigned long, const struct ata_port_operations *);
+extern void ata_host_remove(struct ata_host *host);
 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_release(struct Scsi_Host *host);
+extern void ata_sas_port_destroy(struct ata_port *);
+extern struct ata_port *ata_sas_port_alloc(struct ata_host *,
+                                           struct ata_port_info *, struct Scsi_Host *);
+extern int ata_sas_port_init(struct ata_port *);
+extern int ata_sas_port_start(struct ata_port *ap);
+extern void ata_sas_port_stop(struct ata_port *ap);
+extern int ata_sas_slave_configure(struct scsi_device *, struct ata_port *);
+extern int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
+                            struct ata_port *ap);
 extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
 extern int sata_scr_valid(struct ata_port *ap);
 extern int sata_scr_read(struct ata_port *ap, int reg, u32 *val);
@@ -697,10 +728,9 @@ extern int sata_scr_write_flush(struct ata_port *ap, int reg, u32 val);
 extern int ata_port_online(struct ata_port *ap);
 extern int ata_port_offline(struct ata_port *ap);
 extern int ata_scsi_device_resume(struct scsi_device *);
-extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t state);
-extern int ata_host_set_suspend(struct ata_host_set *host_set,
-                                pm_message_t mesg);
-extern void ata_host_set_resume(struct ata_host_set *host_set);
+extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t mesg);
+extern int ata_host_suspend(struct ata_host *host, pm_message_t mesg);
+extern void ata_host_resume(struct ata_host *host);
 extern int ata_ratelimit(void);
 extern unsigned int ata_busy_sleep(struct ata_port *ap,
                                    unsigned long timeout_pat,
@@ -725,7 +755,7 @@ 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_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 void ata_host_stop (struct ata_host *host);
 extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
 extern void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
                                unsigned int buflen, int write_data);
@@ -811,7 +841,7 @@ struct pci_bits {
         unsigned long           val;
 };
 
-extern void ata_pci_host_stop (struct ata_host_set *host_set);
+extern void ata_pci_host_stop (struct ata_host *host);
 extern struct ata_probe_ent *
 ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
 extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);