niu: Refinements to kernel logging.

[safe/jmp/linux-2.6] / drivers / block / cciss.h

diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
index dd1926d..1d95db2 100644 (file)
--- a/drivers/block/cciss.h
+++ b/drivers/block/cciss.h
@@ -2,6 +2,7 @@
 #define CCISS_H
 
 #include <linux/genhd.h>
+#include <linux/mutex.h>
 
 #include "cciss_cmd.h"
 
@@ -11,6 +12,7 @@
 
 #define IO_OK          0
 #define IO_ERROR       1
+#define IO_NEEDS_RETRY  3
 
 #define VENDOR_LEN     8
 #define MODEL_LEN      16
@@ -28,7 +30,7 @@ struct access_method {
 };
 typedef struct _drive_info_struct
 {
-       __u32   LunID;  
+       unsigned char LunID[8];
        int     usage_count;
        struct request_queue *queue;
        sector_t nr_blocks;
@@ -50,17 +52,16 @@ typedef struct _drive_info_struct
        char vendor[VENDOR_LEN + 1]; /* SCSI vendor string */
        char model[MODEL_LEN + 1];   /* SCSI model string */
        char rev[REV_LEN + 1];       /* SCSI revision string */
+       char device_initialized;     /* indicates whether dev is initialized */
 } drive_info_struct;
 
-#ifdef CONFIG_CISS_SCSI_TAPE
-
-struct sendcmd_reject_list {
-       int ncompletions;
-       unsigned long *complete; /* array of NR_CMDS tags */
+struct Cmd_sg_list {
+       SGDescriptor_struct     *sgchain;
+       dma_addr_t              sg_chain_dma;
+       int                     chain_block_size;
 };
 
-#endif
-struct ctlr_info 
+struct ctlr_info
 {
        int     ctlr;
        char    devname[8];
@@ -80,6 +81,16 @@ struct ctlr_info
        int     num_luns;
        int     highest_lun;
        int     usage_count;  /* number of opens all all minor devices */
+       /* Need space for temp sg list
+        * number of scatter/gathers supported
+        * number of scatter/gathers in chained block
+        */
+       struct  scatterlist **scatter_list;
+       int     maxsgentries;
+       int     chainsize;
+       int     max_cmd_sgentries;
+       struct Cmd_sg_list **cmd_sg_list;
+
 #      define DOORBELL_INT     0
 #      define PERF_MODE_INT    1
 #      define SIMPLE_MODE_INT  2
@@ -93,7 +104,7 @@ struct ctlr_info
        BYTE    cciss_read_capacity;
 
        // information about each logical volume
-       drive_info_struct drv[CISS_MAX_LUN];
+       drive_info_struct *drv[CISS_MAX_LUN];
 
        struct access_method access;
 
@@ -115,6 +126,8 @@ struct ctlr_info
        int                     nr_frees; 
        int                     busy_configuring;
        int                     busy_initializing;
+       int                     busy_scanning;
+       struct mutex            busy_shutting_down;
 
        /* This element holds the zero based queue number of the last
         * queue to be started.  It is used for fairness.
@@ -127,11 +140,10 @@ struct ctlr_info
        void *scsi_ctlr; /* ptr to structure containing scsi related stuff */
        /* list of block side commands the scsi error handling sucked up */
        /* and saved for later processing */
-       struct sendcmd_reject_list scsi_rejects;
 #endif
        unsigned char alive;
-       struct completion *rescan_wait;
-       struct task_struct *cciss_scan_thread;
+       struct list_head scan_list;
+       struct completion scan_wait;
        struct device dev;
 };