int midlevel_result;
struct scsi_sense_hdr sense_hdr;
int have_sense;
+ int residual;
u64 uremainder64;
u8 flags;
u8 remainder_valid;
int result;
struct scsi_tape *stp;
struct completion *waiting;
+ struct bio *bio;
};
/* The tape buffer descriptor. */
struct st_buffer {
unsigned char dma; /* DMA-able buffer */
unsigned char do_dio; /* direct i/o set up? */
+ unsigned char cleared; /* internal buffer cleared after open? */
int buffer_size;
int buffer_blocks;
int buffer_bytes;
int syscall_result;
struct st_request *last_SRpnt;
struct st_cmdstatus cmdstat;
+ struct page **reserved_pages;
+ struct page **mapped_pages;
+ struct rq_map_data map_data;
unsigned char *b_data;
unsigned short use_sg; /* zero or max number of s/g segments for this adapter */
unsigned short sg_segs; /* number of segments in s/g list */
- unsigned short orig_frp_segs; /* number of segments allocated at first try */
unsigned short frp_segs; /* number of buffer segments */
- unsigned int frp_sg_current; /* driver buffer length currently in s/g list */
- struct st_buf_fragment *frp; /* the allocated buffer fragment list */
- struct scatterlist sg[1]; /* MUST BE last item */
-};
-
-/* The tape buffer fragment descriptor */
-struct st_buf_fragment {
- struct page *page;
- unsigned int length;
};
/* The tape mode definition */
unsigned char try_dio_now; /* try direct i/o before next close? */
unsigned char c_algo; /* compression algorithm */
unsigned char pos_unknown; /* after reset position unknown */
+ unsigned char sili; /* use SILI when reading in variable b mode */
int tape_type;
int long_timeout; /* timeout for commands known to take long time */