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author | 2022-12-02 19:27:58 +0100 | |
---|---|---|
committer | 2022-12-02 12:35:30 -0700 | |
commit | f40eb99897af665f11858dd7b56edcb62c3f3c67 (patch) | |
tree | 22c77633f71b40fcef7edd19ddda8152f6ac7621 /include | |
parent | blk-cgroup: Fix some kernel-doc comments (diff) | |
download | linux-f40eb99897af665f11858dd7b56edcb62c3f3c67.tar.gz linux-f40eb99897af665f11858dd7b56edcb62c3f3c67.tar.bz2 linux-f40eb99897af665f11858dd7b56edcb62c3f3c67.zip |
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')
-rw-r--r-- | include/linux/pktcdvd.h | 197 | ||||
-rw-r--r-- | include/uapi/linux/pktcdvd.h | 112 |
2 files changed, 0 insertions, 309 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 */ diff --git a/include/uapi/linux/pktcdvd.h b/include/uapi/linux/pktcdvd.h deleted file mode 100644 index 9cbb55d21c94..000000000000 --- a/include/uapi/linux/pktcdvd.h +++ /dev/null @@ -1,112 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * 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 _UAPI__PKTCDVD_H -#define _UAPI__PKTCDVD_H - -#include <linux/types.h> - -/* - * 1 for normal debug messages, 2 is very verbose. 0 to turn it off. - */ -#define PACKET_DEBUG 1 - -#define MAX_WRITERS 8 - -#define PKT_RB_POOL_SIZE 512 - -/* - * How long we should hold a non-full packet before starting data gathering. - */ -#define PACKET_WAIT_TIME (HZ * 5 / 1000) - -/* - * use drive write caching -- we need deferred error handling to be - * able to successfully recover with this option (drive will return good - * status as soon as the cdb is validated). - */ -#if defined(CONFIG_CDROM_PKTCDVD_WCACHE) -#define USE_WCACHING 1 -#else -#define USE_WCACHING 0 -#endif - -/* - * No user-servicable parts beyond this point -> - */ - -/* - * device types - */ -#define PACKET_CDR 1 -#define PACKET_CDRW 2 -#define PACKET_DVDR 3 -#define PACKET_DVDRW 4 - -/* - * flags - */ -#define PACKET_WRITABLE 1 /* pd is writable */ -#define PACKET_NWA_VALID 2 /* next writable address valid */ -#define PACKET_LRA_VALID 3 /* last recorded address valid */ -#define PACKET_MERGE_SEGS 4 /* perform segment merging to keep */ - /* underlying cdrom device happy */ - -/* - * Disc status -- from READ_DISC_INFO - */ -#define PACKET_DISC_EMPTY 0 -#define PACKET_DISC_INCOMPLETE 1 -#define PACKET_DISC_COMPLETE 2 -#define PACKET_DISC_OTHER 3 - -/* - * write type, and corresponding data block type - */ -#define PACKET_MODE1 1 -#define PACKET_MODE2 2 -#define PACKET_BLOCK_MODE1 8 -#define PACKET_BLOCK_MODE2 10 - -/* - * Last session/border status - */ -#define PACKET_SESSION_EMPTY 0 -#define PACKET_SESSION_INCOMPLETE 1 -#define PACKET_SESSION_RESERVED 2 -#define PACKET_SESSION_COMPLETE 3 - -#define PACKET_MCN "4a656e734178626f65323030300000" - -#undef PACKET_USE_LS - -#define PKT_CTRL_CMD_SETUP 0 -#define PKT_CTRL_CMD_TEARDOWN 1 -#define PKT_CTRL_CMD_STATUS 2 - -struct pkt_ctrl_command { - __u32 command; /* in: Setup, teardown, status */ - __u32 dev_index; /* in/out: Device index */ - __u32 dev; /* in/out: Device nr for cdrw device */ - __u32 pkt_dev; /* in/out: Device nr for packet device */ - __u32 num_devices; /* out: Largest device index + 1 */ - __u32 padding; /* Not used */ -}; - -/* - * packet ioctls - */ -#define PACKET_IOCTL_MAGIC ('X') -#define PACKET_CTRL_CMD _IOWR(PACKET_IOCTL_MAGIC, 1, struct pkt_ctrl_command) - - -#endif /* _UAPI__PKTCDVD_H */ |