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Diffstat (limited to 'drivers/scsi/cxlflash/vlun.h')
-rw-r--r--drivers/scsi/cxlflash/vlun.h82
1 files changed, 0 insertions, 82 deletions
diff --git a/drivers/scsi/cxlflash/vlun.h b/drivers/scsi/cxlflash/vlun.h
deleted file mode 100644
index 68e3ea52fe80..000000000000
--- a/drivers/scsi/cxlflash/vlun.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * CXL Flash Device Driver
- *
- * Written by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>, IBM Corporation
- * Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
- *
- * Copyright (C) 2015 IBM Corporation
- */
-
-#ifndef _CXLFLASH_VLUN_H
-#define _CXLFLASH_VLUN_H
-
-/* RHT - Resource Handle Table */
-#define MC_RHT_NMASK 16 /* in bits */
-#define MC_CHUNK_SHIFT MC_RHT_NMASK /* shift to go from LBA to chunk# */
-
-#define HIBIT (BITS_PER_LONG - 1)
-
-#define MAX_AUN_CLONE_CNT 0xFF
-
-/*
- * LXT - LBA Translation Table
- *
- * +-------+-------+-------+-------+-------+-------+-------+---+---+
- * | RLBA_BASE |LUN_IDX| P |SEL|
- * +-------+-------+-------+-------+-------+-------+-------+---+---+
- *
- * The LXT Entry contains the physical LBA where the chunk starts (RLBA_BASE).
- * AFU ORes the low order bits from the virtual LBA (offset into the chunk)
- * with RLBA_BASE. The result is the physical LBA to be sent to storage.
- * The LXT Entry also contains an index to a LUN TBL and a bitmask of which
- * outgoing (FC) * ports can be selected. The port select bit-mask is ANDed
- * with a global port select bit-mask maintained by the driver.
- * In addition, it has permission bits that are ANDed with the
- * RHT permissions to arrive at the final permissions for the chunk.
- *
- * LXT tables are allocated dynamically in groups. This is done to avoid
- * a malloc/free overhead each time the LXT has to grow or shrink.
- *
- * Based on the current lxt_cnt (used), it is always possible to know
- * how many are allocated (used+free). The number of allocated entries is
- * not stored anywhere.
- *
- * The LXT table is re-allocated whenever it needs to cross into another group.
- */
-#define LXT_GROUP_SIZE 8
-#define LXT_NUM_GROUPS(lxt_cnt) (((lxt_cnt) + 7)/8) /* alloc'ed groups */
-#define LXT_LUNIDX_SHIFT 8 /* LXT entry, shift for LUN index */
-#define LXT_PERM_SHIFT 4 /* LXT entry, shift for permission bits */
-
-struct ba_lun_info {
- u64 *lun_alloc_map;
- u32 lun_bmap_size;
- u32 total_aus;
- u64 free_aun_cnt;
-
- /* indices to be used for elevator lookup of free map */
- u32 free_low_idx;
- u32 free_curr_idx;
- u32 free_high_idx;
-
- u8 *aun_clone_map;
-};
-
-struct ba_lun {
- u64 lun_id;
- u64 wwpn;
- size_t lsize; /* LUN size in number of LBAs */
- size_t lba_size; /* LBA size in number of bytes */
- size_t au_size; /* Allocation Unit size in number of LBAs */
- struct ba_lun_info *ba_lun_handle;
-};
-
-/* Block Allocator */
-struct blka {
- struct ba_lun ba_lun;
- u64 nchunk; /* number of chunks */
- struct mutex mutex;
-};
-
-#endif /* ifndef _CXLFLASH_SUPERPIPE_H */