[PATCH] libata: use preallocated buffers

[linux-2.6] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 03231cb6b406479fe8cfed6c46e4e4a3338b0a85..0e1a3be39475e1ecba6bf6324ee1c0139af29850 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -33,6 +33,7 @@
 #include <asm/io.h>
 #include <linux/ata.h>
 #include <linux/workqueue.h>
+#include <scsi/scsi_host.h>
 
 /*
  * compile-time options: to be removed as soon as all the drivers are
@@ -251,7 +252,7 @@ struct ata_queued_cmd;
 /* typedefs */
 typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
 typedef void (*ata_probeinit_fn_t)(struct ata_port *);
-typedef int (*ata_reset_fn_t)(struct ata_port *, int, unsigned int *);
+typedef int (*ata_reset_fn_t)(struct ata_port *, unsigned int *);
 typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *);
 
 struct ata_ioports {
@@ -359,7 +360,7 @@ struct ata_device {
        unsigned long           flags;          /* ATA_DFLAG_xxx */
        unsigned int            class;          /* ATA_DEV_xxx */
        unsigned int            devno;          /* 0 or 1 */
-       u16                     *id;            /* IDENTIFY xxx DEVICE data */
+       u16                     id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
        u8                      pio_mode;
        u8                      dma_mode;
        u8                      xfer_mode;
@@ -424,6 +425,8 @@ struct ata_port {
        struct list_head        eh_done_q;
 
        void                    *private_data;
+
+       u8                      sector_buf[ATA_SECT_SIZE]; /* owned by EH */
 };
 
 struct ata_port_operations {
@@ -503,15 +506,14 @@ 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 sata_set_spd(struct ata_port *ap);
 extern int ata_drive_probe_reset(struct ata_port *ap,
                        ata_probeinit_fn_t probeinit,
                        ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
                        ata_postreset_fn_t postreset, unsigned int *classes);
 extern void ata_std_probeinit(struct ata_port *ap);
-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 int ata_std_softreset(struct ata_port *ap, unsigned int *classes);
+extern int sata_std_hardreset(struct ata_port *ap, unsigned int *class);
 extern void ata_std_postreset(struct ata_port *ap, unsigned int *classes);
 extern int ata_dev_revalidate(struct ata_port *ap, struct ata_device *dev,
                              int post_reset);
@@ -542,6 +544,9 @@ extern unsigned int ata_busy_sleep(struct ata_port *ap,
                                   unsigned long timeout);
 extern void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *),
                                void *data, unsigned long delay);
+extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
+                            unsigned long interval_msec,
+                            unsigned long timeout_msec);
 
 /*
  * Default driver ops implementations
@@ -635,7 +640,6 @@ extern unsigned long ata_pci_default_filter(const struct ata_port *, struct ata_
 /*
  * EH
  */
-extern int ata_scsi_error(struct Scsi_Host *host);
 extern void ata_eng_timeout(struct ata_port *ap);
 extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
 extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
@@ -976,4 +980,9 @@ static inline void ata_pad_free(struct ata_port *ap, struct device *dev)
        dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
 }
 
+static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
+{
+       return (struct ata_port *) &host->hostdata[0];
+}
+
 #endif /* __LINUX_LIBATA_H__ */