diff options
Diffstat (limited to 'drivers/scsi/scsi_tgt_if.c')
| -rw-r--r-- | drivers/scsi/scsi_tgt_if.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_tgt_if.c b/drivers/scsi/scsi_tgt_if.c index f2344ab8deff..0e08817fdecf 100644 --- a/drivers/scsi/scsi_tgt_if.c +++ b/drivers/scsi/scsi_tgt_if.c @@ -33,6 +33,14 @@ #include "scsi_tgt_priv.h" +#if TGT_RING_SIZE < PAGE_SIZE +# define TGT_RING_SIZE PAGE_SIZE +#endif + +#define TGT_RING_PAGES (TGT_RING_SIZE >> PAGE_SHIFT) +#define TGT_EVENT_PER_PAGE (PAGE_SIZE / sizeof(struct tgt_event)) +#define TGT_MAX_EVENTS (TGT_EVENT_PER_PAGE * TGT_RING_PAGES) + struct tgt_ring { u32 tr_idx; unsigned long tr_pages[TGT_RING_PAGES]; |