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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-12-02 21:27:58 +0300
committerJens Axboe <axboe@kernel.dk>2022-12-02 22:35:30 +0300
commitf40eb99897af665f11858dd7b56edcb62c3f3c67 (patch)
tree22c77633f71b40fcef7edd19ddda8152f6ac7621 /include/linux/pktcdvd.h
parent1d6df9d352bb2a3c2ddb32851dfcafb417c47762 (diff)
downloadlinux-f40eb99897af665f11858dd7b56edcb62c3f3c67.tar.xz
pktcdvd: remove driver.
Way back in 2016 in commit 5a8b187c61e9 ("pktcdvd: mark as unmaintained and deprecated") this driver was marked as "will be removed soon". 5 years seems long enough to have it stick around after that, so finally remove the thing now. Reported-by: Christoph Hellwig <hch@infradead.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Thomas Maier <balagi@justmail.de> Cc: Peter Osterlund <petero2@telia.com> Cc: linux-block@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20221202182758.1339039-1-gregkh@linuxfoundation.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/pktcdvd.h')
-rw-r--r--include/linux/pktcdvd.h197
1 files changed, 0 insertions, 197 deletions
diff --git a/include/linux/pktcdvd.h b/include/linux/pktcdvd.h
deleted file mode 100644
index f9c5ac80d59b..000000000000
--- a/include/linux/pktcdvd.h
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2000 Jens Axboe <axboe@suse.de>
- * Copyright (C) 2001-2004 Peter Osterlund <petero2@telia.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Packet writing layer for ATAPI and SCSI CD-R, CD-RW, DVD-R, and
- * DVD-RW devices.
- *
- */
-#ifndef __PKTCDVD_H
-#define __PKTCDVD_H
-
-#include <linux/blkdev.h>
-#include <linux/completion.h>
-#include <linux/cdrom.h>
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-#include <linux/mempool.h>
-#include <uapi/linux/pktcdvd.h>
-
-/* default bio write queue congestion marks */
-#define PKT_WRITE_CONGESTION_ON 10000
-#define PKT_WRITE_CONGESTION_OFF 9000
-
-
-struct packet_settings
-{
- __u32 size; /* packet size in (512 byte) sectors */
- __u8 fp; /* fixed packets */
- __u8 link_loss; /* the rest is specified
- * as per Mt Fuji */
- __u8 write_type;
- __u8 track_mode;
- __u8 block_mode;
-};
-
-/*
- * Very crude stats for now
- */
-struct packet_stats
-{
- unsigned long pkt_started;
- unsigned long pkt_ended;
- unsigned long secs_w;
- unsigned long secs_rg;
- unsigned long secs_r;
-};
-
-struct packet_cdrw
-{
- struct list_head pkt_free_list;
- struct list_head pkt_active_list;
- spinlock_t active_list_lock; /* Serialize access to pkt_active_list */
- struct task_struct *thread;
- atomic_t pending_bios;
-};
-
-/*
- * Switch to high speed reading after reading this many kilobytes
- * with no interspersed writes.
- */
-#define HI_SPEED_SWITCH 512
-
-struct packet_iosched
-{
- atomic_t attention; /* Set to non-zero when queue processing is needed */
- int writing; /* Non-zero when writing, zero when reading */
- spinlock_t lock; /* Protecting read/write queue manipulations */
- struct bio_list read_queue;
- struct bio_list write_queue;
- sector_t last_write; /* The sector where the last write ended */
- int successive_reads;
-};
-
-/*
- * 32 buffers of 2048 bytes
- */
-#if (PAGE_SIZE % CD_FRAMESIZE) != 0
-#error "PAGE_SIZE must be a multiple of CD_FRAMESIZE"
-#endif
-#define PACKET_MAX_SIZE 128
-#define FRAMES_PER_PAGE (PAGE_SIZE / CD_FRAMESIZE)
-#define PACKET_MAX_SECTORS (PACKET_MAX_SIZE * CD_FRAMESIZE >> 9)
-
-enum packet_data_state {
- PACKET_IDLE_STATE, /* Not used at the moment */
- PACKET_WAITING_STATE, /* Waiting for more bios to arrive, so */
- /* we don't have to do as much */
- /* data gathering */
- PACKET_READ_WAIT_STATE, /* Waiting for reads to fill in holes */
- PACKET_WRITE_WAIT_STATE, /* Waiting for the write to complete */
- PACKET_RECOVERY_STATE, /* Recover after read/write errors */
- PACKET_FINISHED_STATE, /* After write has finished */
-
- PACKET_NUM_STATES /* Number of possible states */
-};
-
-/*
- * Information needed for writing a single packet
- */
-struct pktcdvd_device;
-
-struct packet_data
-{
- struct list_head list;
-
- spinlock_t lock; /* Lock protecting state transitions and */
- /* orig_bios list */
-
- struct bio_list orig_bios; /* Original bios passed to pkt_make_request */
- /* that will be handled by this packet */
- int write_size; /* Total size of all bios in the orig_bios */
- /* list, measured in number of frames */
-
- struct bio *w_bio; /* The bio we will send to the real CD */
- /* device once we have all data for the */
- /* packet we are going to write */
- sector_t sector; /* First sector in this packet */
- int frames; /* Number of frames in this packet */
-
- enum packet_data_state state; /* Current state */
- atomic_t run_sm; /* Incremented whenever the state */
- /* machine needs to be run */
- long sleep_time; /* Set this to non-zero to make the state */
- /* machine run after this many jiffies. */
-
- atomic_t io_wait; /* Number of pending IO operations */
- atomic_t io_errors; /* Number of read/write errors during IO */
-
- struct bio *r_bios[PACKET_MAX_SIZE]; /* bios to use during data gathering */
- struct page *pages[PACKET_MAX_SIZE / FRAMES_PER_PAGE];
-
- int cache_valid; /* If non-zero, the data for the zone defined */
- /* by the sector variable is completely cached */
- /* in the pages[] vector. */
-
- int id; /* ID number for debugging */
- struct pktcdvd_device *pd;
-};
-
-struct pkt_rb_node {
- struct rb_node rb_node;
- struct bio *bio;
-};
-
-struct packet_stacked_data
-{
- struct bio *bio; /* Original read request bio */
- struct pktcdvd_device *pd;
-};
-#define PSD_POOL_SIZE 64
-
-struct pktcdvd_device
-{
- struct block_device *bdev; /* dev attached */
- dev_t pkt_dev; /* our dev */
- char name[20];
- struct packet_settings settings;
- struct packet_stats stats;
- int refcnt; /* Open count */
- int write_speed; /* current write speed, kB/s */
- int read_speed; /* current read speed, kB/s */
- unsigned long offset; /* start offset */
- __u8 mode_offset; /* 0 / 8 */
- __u8 type;
- unsigned long flags;
- __u16 mmc3_profile;
- __u32 nwa; /* next writable address */
- __u32 lra; /* last recorded address */
- struct packet_cdrw cdrw;
- wait_queue_head_t wqueue;
-
- spinlock_t lock; /* Serialize access to bio_queue */
- struct rb_root bio_queue; /* Work queue of bios we need to handle */
- int bio_queue_size; /* Number of nodes in bio_queue */
- bool congested; /* Someone is waiting for bio_queue_size
- * to drop. */
- sector_t current_sector; /* Keep track of where the elevator is */
- atomic_t scan_queue; /* Set to non-zero when pkt_handle_queue */
- /* needs to be run. */
- mempool_t rb_pool; /* mempool for pkt_rb_node allocations */
-
- struct packet_iosched iosched;
- struct gendisk *disk;
-
- int write_congestion_off;
- int write_congestion_on;
-
- struct device *dev; /* sysfs pktcdvd[0-7] dev */
-
- struct dentry *dfs_d_root; /* debugfs: devname directory */
- struct dentry *dfs_f_info; /* debugfs: info file */
-};
-
-#endif /* __PKTCDVD_H */