Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | Hey, Emacs, we're -*-Text-*- mode! |
| 2 | |
| 3 | ===== Release notes for ftape-3.04d 25/11/97 ===== |
| 4 | - The correct pre-processor statement for "else if" is "#elif" not |
| 5 | "elsif". |
| 6 | - Need to call zft_reset_position() when overwriting cartridges |
| 7 | previously written with ftape-2.x, sftape, or ancient |
| 8 | (pre-ftape-3.x) versions of zftape. |
| 9 | |
| 10 | ===== Release notes for ftape-3.04c 16/11/97 ===== |
| 11 | - fdc_probe() was calling DUMPREGS with a result length of "1" which |
| 12 | was just fine. Undo previous change. |
| 13 | |
| 14 | ===== Release notes for ftape-3.04b 14/11/97 ===== |
| 15 | |
| 16 | - patches/2.x.x/floppy.c.diff was somewhat broken, releasing i/o |
| 17 | regions it never had allocated. |
| 18 | - fdc_probe() was calling DUMPREGS with a result length of "1" instead |
| 19 | of "10" |
| 20 | - Writing deleted data marks if the first segents on track zero are |
| 21 | should work now. |
| 22 | - ftformat should now be able to handle those cases where the tape |
| 23 | drive sets the read only status bit (QIC-40/80 cartridges with |
| 24 | QIC-3010/3020 tape drives) because the header segment is damaged. |
| 25 | - the MTIOCFTCMD ioctl may now be issued by the superuser ONLY. |
| 26 | |
| 27 | ===== Release notes for ftape-3.04a 12/11/97 ===== |
| 28 | - Fix an "infinite loop can't be killed by signal" bug in |
| 29 | ftape_get_drive_status(). Only relevant when trying to access |
| 30 | buggy/misconfigured hardware |
| 31 | - Try to compensate a bug in the HP Colorado T3000's firmware: it |
| 32 | doesn't set the write protect bit for QIC80/QIC40 cartridges. |
| 33 | |
| 34 | ===== Release notes for ftape-3.04 06/11/97 ===== |
| 35 | - If positioning with fast seeking fails fall back to a slow seek |
| 36 | before giving up. |
| 37 | - (nearly) no retries on "no data errors" when verifying after |
| 38 | formatting. Improved tuning of the bad sector map after formatting. |
| 39 | - the directory layout has changed again to allow for easier kernel |
| 40 | integration |
| 41 | - Module parameter "ftape_tracing" now is called "ft_tracing" because |
| 42 | the "ftape_tracing" variable has the version checksum attached to it. |
| 43 | - `/proc/ftape' interface for 2.0.* kernels. `/proc/ftape' no longer |
| 44 | is a directory but a file that contains all the information formerly |
| 45 | provided in separate files under the `/proc/ftape/' directory. |
| 46 | - Most of the configuration options have been prefixed by "CONFIG_FT_" |
| 47 | in preparation of the kernel inclusion. The Makefiles under |
| 48 | "./ftape/" should be directly usable by the kernel. |
| 49 | - The MODVERSIONS stuff is now auto-detected. |
| 50 | - Broke backslashed multi line options in MCONFIG into separate lines |
| 51 | using GNU-make's "+=" feature. |
| 52 | - The html and dvi version of the manual is now installed under |
| 53 | '/usr/doc/ftape` with 'make install` |
| 54 | - New SMP define in MCONFIG. ftape works with SMP if this is defined. |
| 55 | - attempt to cope with "excessive overrun errors" by gradually |
| 56 | increasing FDC FIFO threshold. But this doesn't seem to have too |
| 57 | much an effect. |
| 58 | - New load time configuration parameter "ft_fdc_rate_limit". If you |
| 59 | encounter too many overrun errors with a 2Mb controller then you |
| 60 | might want to set this to 1000. |
| 61 | - overrun errors on the last sector in a segment sometimes result in |
| 62 | a zero DMA residue. Dunno why, but compensate for it. |
| 63 | - there were still fdc_read() timeout errors. I think I have fixed it |
| 64 | now, please FIXME. |
| 65 | - Sometimes ftape_write() failed to re-start the tape drive when a |
| 66 | segment without a good sector was reached ("wait for empty segment |
| 67 | failed"). This is fixed. Especially important for > QIC-3010. |
| 68 | - sftape (aka ftape-2.x) has vanished. I didn't work on it for |
| 69 | ages. It is probably still possible to use the old code with |
| 70 | ftape-3.04, if one really needs it (BUT RECOMPILE IT) |
| 71 | - zftape no longer alters the contents of already existing volume |
| 72 | table entries, which makes it possible to fill in missing fields, |
| 73 | like time stamps using some user space program. |
| 74 | - ./contrib/vtblc/ contains such a program. |
| 75 | - new perl script ./contrib/scripts/listtape that list the contents of a |
| 76 | floppy tape cartridge parsing the output of "mt volinfo" + "mt fsf" |
| 77 | - the MTWEOF implementation has changed a little bit (after I had a |
| 78 | look at amanda). Calling MTWEOF while the tape is still held open |
| 79 | after writing something to the tape now will terminate the current |
| 80 | volume, and start a new one at the current position. |
| 81 | - the volume table maintained by zftape now is a doubly linked list |
| 82 | that grows dynamically as needed. |
| 83 | |
| 84 | formatting floppy tape cartridges |
| 85 | --------------------------------- |
| 86 | * there is a new user space formatting program that does most of the |
| 87 | dirty work in user space (auto-detect, computing the sector |
| 88 | coordinates, adjusting time stamps and statistics). It has a |
| 89 | simple command line interface. |
| 90 | * ftape-format.o has vanished, it has been folded into the low level |
| 91 | ftape.o module, and the ioctl interface into zftape.o. Most of the |
| 92 | complicated stuff has been moved to user space, so there was no |
| 93 | need for a separate module anymore. |
| 94 | * there is a new ioctl MTIOCFTCMD that sends a bare QIC-117 command |
| 95 | to the tape drive. |
| 96 | * there is a new mmap() feature to map the dma buffers into user |
| 97 | space to be used by the user level formatting program. |
| 98 | * Formatting of yet unformatted or totally degaussed cartridges |
| 99 | should be possible now. FIXME. |
| 100 | |
| 101 | ===== Release notes for ftape-3.03b, <forgot the exact date> ==== |
| 102 | |
| 103 | ftape-3.03b was released as a beta release only. Its main new feature |
| 104 | was support of the DITTO-2GB drive. This was made possible by reverse |
| 105 | engineering done by <fill in his name> after Iomega failed to support |
| 106 | ftape. Although they had promised to do so (this makes me feel a bit |
| 107 | sad and uncomfortable about Iomega). |
| 108 | |
| 109 | ===== Release notes for ftape-3.03a, 22/05/97 ==== |
| 110 | |
| 111 | - Finally fixed auto-un-loading of modules for kernels > 2.1.18 |
| 112 | - Add an "uninstall" target to the Makefile |
| 113 | - removed the kdtime hack |
| 114 | - texi2www didn't properly set the back-reference from a footnote back |
| 115 | to the regular text. |
| 116 | |
| 117 | zftape specific |
| 118 | --------------- |
| 119 | * hide the old compression map volume. Taper doesn't accept the |
| 120 | presence of non-Taper volumes and Taper-written volume on the same |
| 121 | tape. |
| 122 | * EOD (End Of Data) handling was still broken: the expected behavior |
| 123 | is to return a zero byte count at the first attempt to read past |
| 124 | EOD, return a zero byte count at the second attempt to read past |
| 125 | EOD and THEN return -EIO. |
| 126 | |
| 127 | ftape-format specific |
| 128 | --------------------- |
| 129 | * Detection of QIC-40 cartridges in select_tape_format() was broken |
| 130 | and made it impossible to format QIC-3010/3020 cartridges. |
| 131 | * There are strange "TR-1 Extra" cartridges out there which weren't |
| 132 | detected properly because the don't strictly conform to the |
| 133 | QIC-80, Rev. N, spec. |
| 134 | |
| 135 | ===== Release notes for ftape-3.03, 30/04/97 ===== |
| 136 | |
| 137 | - Removed kernel integration code from the package. I plan to provide |
| 138 | a package that can be integrated into the stock kernel separately |
| 139 | (hopefully soon). |
| 140 | As a result, a simple `make' command now will build everything. |
| 141 | - ALL compile time configuration options have been moved to the file |
| 142 | `MCONFIG'. |
| 143 | - Quite a few `low level' changes to allow formatting of cartridges. |
| 144 | - formatting is implemented as a separate module `ftape-format.o'. The |
| 145 | modified `mt' program contains sample code that shows how to use it. |
| 146 | - The VFS interface has been moved from the `ftape.o' module to the |
| 147 | high level modules `zftape.o' resp. `sftape.o'. `ftape.o' contains |
| 148 | the hardware support only. |
| 149 | - A bit of /proc support for kernels > 2.1.28 |
| 150 | - Moved documentation to Doc subdir. INSTALL now contains some real |
| 151 | installation notes. |
| 152 | - `install' target in Makefile. |
| 153 | |
| 154 | zftape specific: |
| 155 | ---------------- |
| 156 | |
| 157 | - zftape works for large cartridges now ( > 2^31 bytes) |
| 158 | - MTIOCVOLINFO and MTIOCGETSIZE now return the size in KILOBYTES, |
| 159 | NO LONGER in bytes. |
| 160 | |
| 161 | - permissions for write access to a cartridge have changed: |
| 162 | * zftape now also takes the file access mode into account |
| 163 | * zftape no longer allows writing in the middle of the recorded |
| 164 | media. The tape has to be positioned at BOT or EOD for write |
| 165 | access. |
| 166 | |
| 167 | - MTBSF has changed. It used to position at the beginning of the |
| 168 | previous file when called with count 1. This was different from the |
| 169 | expected behavior for other Un*x tape drivers (i.e. SCSI). MTBSF |
| 170 | with count 1 should merely position at the beginning of the current |
| 171 | volume. Fixed. As a result, `tar --verify' now produces the desired |
| 172 | result: it verifies the last written volume, not the pre-last |
| 173 | written volume. |
| 174 | |
| 175 | - The compression map has vanished --> no need for `mt erase' any |
| 176 | more. Fast seeking in a compressed volume is still be possible, but |
| 177 | takes slightly longer. As a side effect, you may experience an |
| 178 | additional volume showing up in front of all others for old |
| 179 | cartridges. This is the tape volume that holds the compression map. |
| 180 | |
| 181 | - The compression support for zftape has been moved to a separate |
| 182 | module `zft-compressor'. DON'T forget to load it before trying to |
| 183 | read back compressed volumes. The stock `zftape.o' module probes for |
| 184 | the module `zft-compressor' using the kerneld message channel; you |
| 185 | have to install `zft-compressor.o' in a place where modprobe can |
| 186 | find it if you want to use this. |
| 187 | |
| 188 | - New experimental feature that tries to get the broken down GMT time |
| 189 | from user space via a kernel daemon message channel. You need to |
| 190 | compile and start the `kdtime' daemon contained in the contrib |
| 191 | directory to use it. Needed (?) for time stamps in the header |
| 192 | segments and the volume table. |
| 193 | |
| 194 | - variable block size mode via MTSETBLK 0 |
| 195 | |
| 196 | - keep modules locked in memory after the block size has been changed |
| 197 | |
| 198 | sftape specific: |
| 199 | ---------------- |
| 200 | |
| 201 | - end of tape handling should be fixed, i.e. multi volume archives |
| 202 | written with `afio' can be read back now. |
| 203 | |
| 204 | |
| 205 | ===== Release notes for ftape-3.02a, 09/01/97 ===== |
| 206 | |
| 207 | No big news: |
| 208 | - call zft_init() resp. sft_init() when compiling the entire stuff |
| 209 | into the kernel image. |
| 210 | - fix bug in ftape-setup.c when NO_TRACE_AT_ALL was defined. |
| 211 | - fix bug in sftape-eof.c/zftape-eof.c for old kernels (1.2.*) |
| 212 | - add support for new module interface for recent kernels |
| 213 | |
| 214 | ===== Release notes for ftape-3.02, 16/12/96 ===== |
| 215 | - Fixed the `FDC unlock command failed' bug in fdc-io.c. When the FIFO |
| 216 | was already locked when ftape was loaded, ftape failed to unlock it. |
| 217 | - Fixed compilation of `contrib/gnumt'. It now finds `mtio.h' even if |
| 218 | ftape is NOT included into the kernel source tree. |
| 219 | - fc-10.c: include <asm/io.h> for inb() and outb(). |
| 220 | - ftape/sftape/zftape: all global variable now have either a `ftape_', |
| 221 | a `ft_', `sft_', `zft_' or `qic_' prefix to prevent name clashes |
| 222 | with other parts of the kernel when including ftape into the kernel |
| 223 | source tree. |
| 224 | - Kerneld support has changed. `ftape' now searches for a module |
| 225 | `ftape-frontend' when none of the frontend (`sftape' or `zftape') is |
| 226 | loaded. Please refer to the `Installation/Loading ftape' section of |
| 227 | the TeXinfo manual. |
| 228 | - Add load resp. boot-time configuration of ftape. There are now |
| 229 | variables ft_fdc_base, ft_fdc_dma and ft_fdc_irq corresponding to |
| 230 | the former FDC_BASE etc. compile time definitions. One can also use |
| 231 | the kernel command line parameters to configure the driver if it is |
| 232 | compiled into the kernel. Also, the FC-10/FC-20 support is load-time |
| 233 | configurable now as well as the MACH-II hack (ft_probe_fc10, |
| 234 | resp. ft_mach2). Please refer to the section `Installation/Configure |
| 235 | ftape' of the TeXinfo manual. |
| 236 | - I removed the MODVERSIONS option from `Makefile.module'. Let me alone |
| 237 | with ftape and MODVERSIONS unless you include the ftape sources into |
| 238 | the kernel source tree. |
| 239 | - new vendors in `vendors.h': |
| 240 | * HP Colorado T3000 |
| 241 | * ComByte DoublePlay (including a bug fix for their broken |
| 242 | formatting software, thanks to whraven@njackn.com) |
| 243 | * Iomega DITTO 2GIG. NOTE: this drive cannot work with ftape because |
| 244 | the logical data layout of the cartridges used by this drive does |
| 245 | NOT conform to the QIC standards, it is a special Iomega specific |
| 246 | format. I've sent mail to Iomega but didn't receive an answer |
| 247 | yet. If you want this drive to be supported by ftape, ask Iomega |
| 248 | to give me information about it. |
| 249 | - zftape: |
| 250 | * re-introduced the MTIOC_ZFTAPE_GETBLKSZ ioctl for compatibility |
| 251 | with zftape 1.06a and earlier. Please don't use it when writing |
| 252 | new software, use the MTIOCVOLINFO ioctl instead. |
| 253 | * Major overhaul of the code that updates the header segments. Never |
| 254 | change the tape label unless erasing the tape. Thus we almost |
| 255 | never need to write the header segments, unless we would modify |
| 256 | the bad sector map which isn't done yet. Updating of volume table |
| 257 | and compression map more secure now although it takes a bit |
| 258 | longer. |
| 259 | * Fixed bug when aborting a write operation with a signal: zftape |
| 260 | now finishes the current volume (i.e. writes an eof marker) at the |
| 261 | current position. It didn't before which led to somehow *strange* |
| 262 | behavior in this cases. |
| 263 | * Keep module locked in memory when using it with the non-rewinding |
| 264 | devices and the tape is not logical at BOT. Needed for kerneld |
| 265 | support. |
| 266 | - sftape: |
| 267 | * Keep module locked in memory when using it with the non-rewinding |
| 268 | devices and the tape is not logical at BOT. Needed for kerneld |
| 269 | support. |
| 270 | |
| 271 | ===== Release notes for ftape-3.01, 14/11/96 ===== |
| 272 | |
| 273 | - Fixed silly bugs in ftape-3.00: |
| 274 | * MAKEDEV.ftape: major device number must be 27, not 23 |
| 275 | * sftape/sftape-read.c: sftape_read_header_segments() called |
| 276 | itself recursively instead of calling ftape_read_header_segment() |
| 277 | * zftape/qic-vtbl.h: conversion of ftape's file marks to zftape's |
| 278 | internal volume table was broken. |
| 279 | * patches/2.x.x/linux-2.0.21.dif: my RCS (resp. CVS) system replaced |
| 280 | the `$Revison:' etc. macros in the `ftape.h' concerning part of the |
| 281 | patch :-( Fixed. |
| 282 | * info/ftape.info: Fixed misspellings (`cp' <-> `cp -r' etc.) |
| 283 | * when ftape/sftape or ftape/zftape was compiled into the kernel the |
| 284 | variable ftape_status was declared twice. Fixed. |
| 285 | * removed reference to undeclared variable kernel_version when not |
| 286 | compiling as module |
| 287 | * fixed a bug introduced by the use of bit-fields for some flags |
| 288 | (i.e. write_protected, no_cartridge, formatted) |
| 289 | * flag `header_read' is now reset correctly to zero when tape is |
| 290 | removed. |
| 291 | - fixed a bug in sftape/sftape-eof.c that was already in the original |
| 292 | ftape code. MTFSF/BSF was not handled correctly when positioned |
| 293 | right before the file mark (think of tar) |
| 294 | - Changed TRACE macros (following a suggestion of Marcin Dalecki) to use |
| 295 | the predefined __FUNCTION__ macro of GCC. Spares about 4k of code. |
| 296 | - added new vendor id for Iomega DITTO 2GIG |
| 297 | - fixed a bug already present in zftape-1.06 when aborting a write |
| 298 | with a signal: we now finish the current volume at that |
| 299 | position. Header segments remain NOT up to date until an explicit call |
| 300 | to MTREW or MTOFFL is done. |
| 301 | |
| 302 | ===== Release notes for ftape-3.00, 14/10/96 ===== |
| 303 | |
| 304 | - Merged ftape with zftape. There are three modules now: |
| 305 | ftape for the hardware support, sftape for the implementation of the |
| 306 | original ftape eof mark stuff and zftape that implements zftape's way |
| 307 | of handling things (compression, volume table, tape blocks of |
| 308 | constant length) |
| 309 | - Documentation in TeXinfo format in the `info' subdirectory. |
| 310 | - New ioctls for zftape. See zftape/zftape.h |
| 311 | - Dummy formatting ioctl for ftape. See ftape.h |
| 312 | - Kernel patch files for the 2.*.* series to include ftape-3.00 in the |
| 313 | kernel source tree. These includes a kernel compatible Config.in |
| 314 | script and fairly large online information for the kernel configure |
| 315 | script. |
| 316 | - Support for compiling with Linux-1.2.13. |
| 317 | - Modified GNU mt from their cpio package that can handle the new |
| 318 | ioctls. |
| 319 | - ftape/sftape/zftape is kerneld save now! |
| 320 | |
| 321 | Notes on sftape: |
| 322 | - sftape implements the eof handling code of the original ftape. If |
| 323 | you like to stick with the original ftape stuff, you have to use |
| 324 | this module, not zftape. |
| 325 | - sftape is kerneld save, unlike the original ftape. |
| 326 | - we keep the entire header segment now in memory, so no need to read |
| 327 | it before updating the header segments. Additional memory |
| 328 | consumption: 256 bytes. |
| 329 | |
| 330 | Notes for zftape: |
| 331 | - zftape has support for tapes with format code 6 now, which use a |
| 332 | slightly different volume table format compared with other floppy |
| 333 | tapes. |
| 334 | - new ioctls for zftape. Have a look at zftape/zftape.h |
| 335 | - The internal volume table representation has changed for zftape. Old |
| 336 | cartridges are converted automatically. |
| 337 | - zftape no longer uses compression map segments, which have vanished |
| 338 | from the QIC specs, but creates volume table entry that reserves |
| 339 | enough space for the compression map. |
| 340 | - zftape is kerneld save now. |
| 341 | - we keep the entire header segment now in memory, so no need to read |
| 342 | it before updating the header segments. Additional memory |
| 343 | consumption: 256 bytes. |
| 344 | |
| 345 | Notes for contrib/gnumt: |
| 346 | - modified mt from the GNU cpio package that supports all the new |
| 347 | ioctls of zftape. |
| 348 | Notes for contrib/swapout: |
| 349 | - This contains the swapout.c program that was written by Kai |
| 350 | Harrekilde-Pederson. I simply added a Makefile. |
| 351 | |
| 352 | ===== Release notes for ftape-2.10, 14/10/96 ===== |
| 353 | |
| 354 | The ftape maintainer has changed. |
| 355 | Kai Harrekilde-Petersen <khp@dolphinics.no> |
| 356 | has resigned from maintaining ftape, and I, |
| 357 | Claus-Justus Heine <claus@momo.math.rwth-aachen.de>, |
| 358 | have taken over. |
| 359 | |
| 360 | - Added support for tapes with `format code 6', i.e. QIC-3020 tapes |
| 361 | with more than 2^16 segments. |
| 362 | - merged changes made by Bas Laarhoven with ftape-2.09. Refer |
| 363 | to his release notes below. I've included them into this |
| 364 | file unchanged for your reference. |
| 365 | - disabled call stack back trace for now. This new feature |
| 366 | introduced by the interim release 2.0.x still seems to |
| 367 | be buggy. |
| 368 | - Tried to minimize differences between the ftape version |
| 369 | to be included into the kernel source tree and the standalone |
| 370 | module version. |
| 371 | - Reintroduced support for Linux-1.2.13. Please refer to the |
| 372 | Install-guide. |
| 373 | |
| 374 | ===== Release notes for ftape-2.09, 16/06/96 ===== |
| 375 | |
| 376 | There aren't any really big news in this release, mostly just that I |
| 377 | (the maintainer) have changed my email address (due to a new job). My |
| 378 | new address is <khp@dolphinics.no> |
| 379 | |
| 380 | - The CLK_48MHZ and FDC_82078SL options has gone (all 2Mbps cards seem |
| 381 | to use a 48MHz oscillator anyway and I haven't heard of an 'SL |
| 382 | chip out there). |
| 383 | - The S82078B has been `downgraded' to i82077AA compability. |
| 384 | - TESTING option revived. Right now, it'll enable the (seriously broken) |
| 385 | 2Mbps code. If you enable it, you'll experience a tape drive that's |
| 386 | *really* out to lunch! |
| 387 | - Some (bold) changes in the init code. Please notify me if they |
| 388 | break things for you. |
| 389 | |
| 390 | ===== Release notes for ftape-2.08, 14/03/96 ===== |
| 391 | |
| 392 | If you correct a problem with ftape, please send your patch to |
| 393 | khp@dolphinics.no too. |
| 394 | |
| 395 | - Updated to reflect that NR_MEM_LISTS is gone in 1.3.74 |
| 396 | - Teac 700 added to list of known drives. |
| 397 | - The registered device name is now "ft" rather than "ftape". |
| 398 | |
| 399 | ===== Release notes for ftape-2.07a, 14/03/96 ===== |
| 400 | |
| 401 | Bugfixes by Marcin Dalecki <dalecki@namu03.gwdg.de>: |
| 402 | - In the last release it just compiled against 1.3.70; |
| 403 | now the params to request_irq() and free_irq are() are fixed, so it also |
| 404 | works in 1.3.73 :-) |
| 405 | - Support for modules is now correct for newer kernels. |
| 406 | |
| 407 | ===== Release notes for ftape-2.07, 04/03/96 ===== |
| 408 | |
| 409 | |
| 410 | - ftape updated to compile against 1.3.70. |
| 411 | - Iomega 700 and Wangtek 3200 recognised. |
| 412 | |
| 413 | |
| 414 | ===== Release notes for ftape-2.06b, 13/02/96 ===== |
| 415 | |
| 416 | Another simple bugfix version. |
| 417 | |
| 418 | - Jumbo 700 recognised. |
| 419 | - Typo in vendors.h fixed. |
| 420 | |
| 421 | |
| 422 | ===== Release notes for ftape-2.06a, 10/02/96 ===== |
| 423 | |
| 424 | This release is a simple bugfix version. |
| 425 | |
| 426 | - Linux/SMP: ftape *should* work. |
| 427 | - FC-10/20: Only accepts IRQs 3-7, or 9. If IRQ 9, properly tell the card |
| 428 | to use IRQ 2. Thanks to Greg Crider (gcrider@iclnet.org) for finding and |
| 429 | locating this bug and testing the patch. |
| 430 | - Insight drive recognised correctly again. |
| 431 | - Motor-on wakeup version of the Iomega 250 drive added |
| 432 | |
| 433 | |
| 434 | ===== Release notes for ftape-2.06, 28/01/96 ===== |
| 435 | |
| 436 | Special thanks go to Neal Friedman and Steven Sorbom for their |
| 437 | help in producing and testing this release. |
| 438 | |
| 439 | I have continued to clean up the code, with an eye towards inclusion |
| 440 | of ftape in Linus' official kernel (In fact, as I type this, I am |
| 441 | running on a kernel with ftape support statically linked). I have |
| 442 | test-compiled ftape against my 1.2.13 tree without problems. |
| 443 | Hopefully, everything should be OK for the v1.2.x people. |
| 444 | |
| 445 | WARNING! Alan Cox has mailed me that ftape does *NOT* work with |
| 446 | Linux/SMP. If you try to run ftape under Linux/SMP, it will cause a |
| 447 | kernel deadlock (which is worse than a panic). |
| 448 | |
| 449 | - QIC-3020/TR-3: 1Mbps support works. Neal is capable of reading and |
| 450 | writing data to a tape. ftape will automatically detect the type of |
| 451 | tape (e.g. TR-3 vs QIC-80) and move the fdc in and out of |
| 452 | "perpendicular mode" as necessary. |
| 453 | - 2Mbps support is disabled by default, since it is not fully |
| 454 | debugged. If you are adventurous, remove -DFDC_82078SL in the |
| 455 | Makefile and see what happens :-) |
| 456 | - fdc detection: silly bugs removed (Only 2Mbps fdcs were affected) |
| 457 | and added detection of the National Semiconductors PC8744 fdc chip |
| 458 | (used in the PC873xx "super-IO" chips). |
| 459 | - Removed warning about incompatible types when compiling with Linux |
| 460 | 1.2.x. |
| 461 | - README.PCI updated with info about the DELL Dimension XPS P90. |
| 462 | - Connor TST3200R added to detected drives. |
| 463 | - `swapout' utility added to distribution. It will dirty 5Meg of |
| 464 | memory, trying to swap out other programs. Just say `make swapout' |
| 465 | to build it. ftape will do this automatically Real Soon Now (ie: |
| 466 | when I have found out which kernel memory alloc function to call). |
| 467 | |
| 468 | |
| 469 | ===== Release notes for ftape-2.05, 08/01/96 ===== |
| 470 | |
| 471 | - For v1.2.x Kernels, you must apply the patch linux-1.2/ksyms.patch to |
| 472 | the kernel and rebuild it (it adds the __get_dma_pages symbol to |
| 473 | ksyms.c). |
| 474 | - Included new asm-i386/io.h file from v1.3.x kernel series, to enable |
| 475 | gcc v.2.7.[12] to compile v1.2.x kernels (linux-1.2/io.h). |
| 476 | - Module versions: If you wish to compile ftape as a versioned module, |
| 477 | you must first compile your kernel with CONFIG_MODVERSIONS=y. |
| 478 | Otherwise, you will get complaints that <linux/modversions.h> does not |
| 479 | exist (if that happens, a `touch modversions.h' will help you out). |
| 480 | - CLK_48MHZ: new define in the Makefile (default: non-zero). If you have |
| 481 | a tape controller card that uses the i82078(-1) chip, but cannot get |
| 482 | it to work with ftape, try set it to 0 (and please report this). |
| 483 | - QIC-3010/3020: Complete support is still missing, but will hopefully |
| 484 | come soon. Steven Sorbom has kindly provided me with hints about |
| 485 | this. Writing of QIC-3020 tapes definitely does NOT work (do not try |
| 486 | it! - the drive will not be in "perpendicular mode" and this will ruin |
| 487 | the formatting info on the tape). |
| 488 | - ftape_num_buffers is out of fashion: use NR_BUFFERS instead (and |
| 489 | recompile if you want to change it :-). |
| 490 | |
| 491 | |
| 492 | ===== Release notes for ftape-2.04, 01/01/96 ===== |
| 493 | |
| 494 | This version by Kai Harrekilde-Petersen <khp@dolphinics.no> |
| 495 | |
| 496 | - ALERT! Support for Kernels earlier then v1.1.85 is about to go away. |
| 497 | I intend to clean up some of the code (getting rid of an annoyingly |
| 498 | large numbers of #ifdef mostly), which means that support for |
| 499 | pre-1.1.85 kernels must go as well. |
| 500 | - NR_FTAPE_BUFFERS is gone; You can instead select the number of dma |
| 501 | buffers by saying `insmod ftape.o ftape_num_buffer=<n>' instead. |
| 502 | - Configure script gone. ftape will now automagically determine your |
| 503 | kernel version by /usr/include/linux/version.h instead. |
| 504 | - CONFIG_MODVERSIONS now work. All combinations of versioned / |
| 505 | unversioned kernel and ftape module works (at least with my 1.3.52 |
| 506 | kernel). |
| 507 | - If you have problems with inserting ftape into an old (1.2.x) |
| 508 | kernel (e.g. insmod says "1.2.8 does not match 1.2.8), recompile |
| 509 | your modules utilities with your new compiler. |
| 510 | - Reveal TB1400 drive added to vendors.h |
| 511 | - Support for the i82078-1 (2Mbps) chip is coming along. The |
| 512 | biggest problem is that I don't have such a card, which makes |
| 513 | testing / debugging somewhat problematic. The second biggest |
| 514 | problem is that I do not have the QIC-3010/3020 standards either. |
| 515 | Status right now is that the chip is detected, and it should be |
| 516 | possible to put it into 2Mbps mode. However, I do not know what |
| 517 | "extras" are needed to complete the support. Although putting the |
| 518 | i82078 into 1Mbps mode ought to work out of the box, it doesn't |
| 519 | (right now, ftape complains about id am errors). |
| 520 | |
| 521 | |
| 522 | ===== Release notes for ftape-2.04beta5, 29/12/95 ===== |
| 523 | |
| 524 | Bas offline linux-tape |
| 525 | ---------------------- |
| 526 | For reasons only known to the majordomo mail list processor, Bas was |
| 527 | kicked off the linux-tape list sometime during the summer. Being |
| 528 | overworked at his for-pay job, he didn't notice it much. Instead I |
| 529 | (Kai, khp@dolphinics.no) has worked on ftape to produce the 2.04(beta) |
| 530 | version. |
| 531 | |
| 532 | zftape |
| 533 | ------ |
| 534 | Note that there exists a much improved version of ftape, written by |
| 535 | Claus-Justus Heine <claus@willi.math.rwth-aachen.de> which is named |
| 536 | zftape, which conforms to the QIC-80 specs on how to mark backups, and |
| 537 | is capable of doing automatic compression. However, zftape makes |
| 538 | substantial changes to ftape, and I (Kai) have therefore declined to |
| 539 | integrate zftape into ftape. Hopefully, this will happen soon. |
| 540 | |
| 541 | CONFIG_QIC117 removed from the kernel |
| 542 | ------------------------------------- |
| 543 | The biggest change of all is that ftape now will allocate its dma |
| 544 | buffers when it is inserted. The means that the CONFIG_QIC117 option |
| 545 | has disappeared from the Linux kernel as of v1.3.34. If you have an |
| 546 | earlier kernel, simply answer 'no' to the question will do the trick |
| 547 | (if you get complains about __get_free_pages() missing, contact the |
| 548 | linux-tape mailing list). |
| 549 | |
| 550 | Note that ftape-2.04beta will work equally well on kernels with and |
| 551 | without `ftape support'. The only catch is, that you will waste |
| 552 | around 96-128Kb of precious DMA'able memory on a box that has ftape |
| 553 | support compiled in. |
| 554 | |
| 555 | Now for the real changes: |
| 556 | |
| 557 | - FC-20 can now use DMA channels 1, 2, and 3. Thanks to Daniel |
| 558 | Cohen, catman@wpi.edu. |
| 559 | - ftape no longer requires a (gigantic) 96Kb buffer to be statically |
| 560 | allocated by the kernel. |
| 561 | - Added new Iomega drive (8882) to vendors.h |
| 562 | - -fno-strength-reduce added to Makefile, since GCC is broken. |
| 563 | - i82078-1 (2Mbps) FDC support started. |
| 564 | |
| 565 | |
| 566 | ===== Release notes for ftape-2.03b, 27/05/95 ===== |
| 567 | |
| 568 | - Prevented verify_area to return error if called with zero length. |
| 569 | - Fixed a bug in flush_buffers that caused too much padding to be |
| 570 | written when a final segment had bad sectors. |
| 571 | - Increased maximum fast-seek overshoot value from 5 to 10 segments. |
| 572 | - Breaking loop after 5 retries when positioning fails. |
| 573 | - Fixed wrong calculation of tape length for QIC-3010 and QIC-3020 |
| 574 | tapes (densities were swapped). |
| 575 | - Fixed wrong calculation of overshoot on seek_forward: Wrong sign |
| 576 | of error. |
| 577 | - Suppress (false) error message due to new tape loaded. |
| 578 | - Added two new CMS drives (11c3 and 11c5) to vendors.h. |
| 579 | |
| 580 | |
| 581 | ===== Release notes for ftape-2.03a, 09/05/95 ===== |
| 582 | |
| 583 | - Fixed display of old error (even if already cleared) in ftape_open. |
| 584 | - Improved tape length detection, ioctls would fail for 425 ft tapes. |
| 585 | Until the tape length is calculated with data from the header |
| 586 | segment, we'll use worst-case values. |
| 587 | - Clear eof_mark after rewinding ioctls. |
| 588 | - Fixed wrong version message (2.03 had 2.02g id). |
| 589 | - Fixed bug that caused the fdc to be reset very frequently. |
| 590 | This shouldn't affect normal operation but the timing of the |
| 591 | report routines has changed again and that may cause problems. |
| 592 | We'll just have to find out.... |
| 593 | - Implemented correct write precompensation setting for QIC-3010/3020. |
| 594 | - Cleaned up fdc_interrupt_wait routine. Hope it still works :-) |
| 595 | - Finally removed (already disabled) special eof mark handling for |
| 596 | gnu tar. |
| 597 | - Changed order of get_dma_residue and disable_dma in fdc-isr.c |
| 598 | because the current order would fail on at least one system. |
| 599 | We're back to the original order again, hope (and expect) this |
| 600 | doesn't break any other system. |
| 601 | |
| 602 | |
| 603 | ===== Release notes for ftape-2.03, 07/05/95 ===== |
| 604 | |
| 605 | (Changes refer to the first ftape-2.02 release) |
| 606 | |
| 607 | Support for wide and extended length tapes |
| 608 | ------------------------------------------ |
| 609 | The Conner TSM 420 and 850 drives are reported to be working. |
| 610 | I haven't received any reports about other brands; the TSM 420 |
| 611 | and 850 seem to be the most widely used wide drives. |
| 612 | Extended length tapes (425 ft) with normal QIC-80 drives |
| 613 | are operating too (At least I've had no reports stating otherwise). |
| 614 | _Not_ yet completely supported (although they may work) are |
| 615 | QIC-3020 drives and 2 Mbps floppy disk controllers won't work at |
| 616 | the highest speed. |
| 617 | If someone is kind enough to send me one of these, I'll include |
| 618 | support for it too ;-) |
| 619 | |
| 620 | Easier configuration |
| 621 | -------------------- |
| 622 | Problems due to wrong settings in the Makefile are prevented |
| 623 | by using a configuration script that sets the necessary (kernel |
| 624 | version dependent) compile time options. |
| 625 | This kernel version is now determined from the sources found |
| 626 | at /usr/src/linux, or if not found, the old way using |
| 627 | /proc/version. |
| 628 | Versioned modules will be used automatically when supported |
| 629 | by- and configured in- the kernel. |
| 630 | Note that the current modules code (1.1.87) is still broken |
| 631 | and _needs_ the fix included in the insmod directory. |
| 632 | Please don't send me any more Oops reports caused by insmod :-( |
| 633 | |
| 634 | Reduced module size |
| 635 | ------------------- |
| 636 | The standard module size is much reduced and some compile time |
| 637 | options can even reduce it further. (I don't recommend this |
| 638 | for normal use but it can be handy for rescue diskettes) |
| 639 | |
| 640 | Option: Approx. module size: |
| 641 | |
| 642 | <standard> 150 Kb |
| 643 | NO_TRACE 125 Kb |
| 644 | NO_TRACE_AT_ALL 67 Kb |
| 645 | |
| 646 | |
| 647 | Much improved driver interruption |
| 648 | --------------------------------- |
| 649 | Most possible loops have been broken and signal detection |
| 650 | has been improved. |
| 651 | In most cases the driver can be aborted by ^C (SIGINT) and |
| 652 | SIGKILL (kill -9) will generate be a sure kill. |
| 653 | (Note that aborting a tape operation may damage the last |
| 654 | data written to tape) |
| 655 | |
| 656 | Improved error recovery |
| 657 | ----------------------- |
| 658 | Ftape now returns an error (ENODATA) to the application if |
| 659 | a segment proves to be unrecoverable and then skips the |
| 660 | bad segment. |
| 661 | This causes most applications to continue to work (tar |
| 662 | and afio) loosing only a small amount (up to 29 Kb) of data. |
| 663 | Retried read operations will now be done slightly off-track |
| 664 | to improve the chance of success. Serious head off-track |
| 665 | errors will be detected. |
| 666 | |
| 667 | FC-10 and FC-20 controllers |
| 668 | --------------------------- |
| 669 | Ftape now supports both the old CMS FC-10 and the newer FC-20 |
| 670 | controllers. |
| 671 | Because the operation of these cards is still undocumented, |
| 672 | thus far they will only work with the default settings (See |
| 673 | Makefile). Any feed-back on how to use them with other settings |
| 674 | will be welcome ! |
| 675 | Compilation will fail if one changes the settings to illegal |
| 676 | values. |
| 677 | |
| 678 | Kernels and compilers |
| 679 | --------------------- |
| 680 | Ftape is currently being developed using the 2.5.8 compiler. |
| 681 | The older 2.4.5 probably works too (Set option in Makefile!). |
| 682 | I have no experience with any later compilers nor Elf support. |
| 683 | Any information on this is welcome. |
| 684 | The latest kernel I have tested ftape with is 1.2.6. |
| 685 | |
| 686 | Compression |
| 687 | ----------- |
| 688 | An impressive collection of changes for ftape including |
| 689 | on-the-fly compression is still lying on my desk. |
| 690 | If 2.03 proves to be reliable I might start integrating these |
| 691 | but as usual, I'm short in time :-( |
| 692 | |
| 693 | Formatting |
| 694 | ---------- |
| 695 | There is still no way to format tapes under Linux. As far as |
| 696 | I know all attempts to write such a program have died now. |
| 697 | Since formatted tapes are rather common now, I think all we |
| 698 | need is a utility that writes a worst case pattern and verifies |
| 699 | that with the drive put in verify mode, reducing margins. |
| 700 | Any takers ? |
| 701 | |
| 702 | Furthermore |
| 703 | ----------- |
| 704 | Cleaned up messages. |
| 705 | Prepared to support multiple tape drives on one fdc. |
| 706 | Thanks to all the people who sent bug reports and helped me |
| 707 | improve the driver. Without trying to be complete I'll mention |
| 708 | Gary Anderson (without his accurate reports and unreliable |
| 709 | hardware there wouldn't be a 2.03), Stefan Kneifel (FC-20), |
| 710 | Robert Broughton (FC-20, you were almost there ;-), Bjorn |
| 711 | Ekwall (for the versioned modules and buggy insmod ;-), Peter |
| 712 | Fox, Christopher Oliver, Ralph Whittaker and not the least |
| 713 | Linus Torvalds (for Linux and keeping me busy because of |
| 714 | changes to the kernel ;-) |
| 715 | Thanks to anyone I forgot, for the bug reports, the ftape |
| 716 | bashing and the mental support... |
| 717 | |
| 718 | |
| 719 | That's it for now. Have Fun, |
| 720 | |
| 721 | Bas. |
| 722 | |
| 723 | |
| 724 | ===== Release notes for ftape-2.02g, 06/05/95 ===== |
| 725 | |
| 726 | - Added extra test to break read-id loop with signal. |
| 727 | - Changed rewind code to handle negative overshoot for drives |
| 728 | that take very long to start or stop. |
| 729 | - Let use of get/set i/o-regions depend on kernel version. |
| 730 | - Changed code to use a more general test for conditional |
| 731 | compilations depending on kernel version. |
| 732 | - Improved micro-step functionality to go off-track only |
| 733 | while reading (id & data). |
| 734 | - Added failure on tape-not-referenced bit in ftape_command. |
| 735 | - Added FOREVER option to read-wait routine. |
| 736 | - Changed read-id to use shorter timeout causing smaller |
| 737 | rewinds on timeout. |
| 738 | - Made kernel-interface functions static. |
| 739 | |
| 740 | |
| 741 | ===== Release notes for ftape-2.02f, 03/05/95 ===== |
| 742 | |
| 743 | - Added support for dual tape drives on my system, extended Configure |
| 744 | script to detect host 'dodo'. |
| 745 | - Log media defect in history if ecc failed and no data was returned. |
| 746 | - Fixed Configure script that was failing for kernel versions with |
| 747 | double digit version or revision numbers. |
| 748 | |
| 749 | |
| 750 | ===== Release notes for ftape-2.02e, 01/05/95 ===== |
| 751 | |
| 752 | - Fixed reposition loop at logical eot (failing read_id). |
| 753 | - Fixed 34 segment offset when rewinding. |
| 754 | - Added fast seek capability for more than 255 segments. |
| 755 | - Fixed wrong busy result from ftape_command causing reverse |
| 756 | seek to fail. |
| 757 | - Added breakout from infinite rewind loop (if something fails). |
| 758 | |
| 759 | |
| 760 | ===== Release notes for ftape-2.02d, 30/04/95 ===== |
| 761 | |
| 762 | - Improved abortion on signals: Interrupt will make a graceful |
| 763 | exit, Kill will be less nice and should be used if everything |
| 764 | else fails. |
| 765 | - Included check for tape-head off track. |
| 766 | - Implemented exit from tape-start loop. |
| 767 | - Added kernel io-port registration. |
| 768 | - Implemented skip of failing segment (ENODATA) on ecc failure. |
| 769 | This allows afio and tar to continue when the tape is damaged. |
| 770 | - Made distinction between drive names with different codes. |
| 771 | |
| 772 | |
| 773 | ===== Release notes for ftape-2.02c, 22/04/95 ===== |
| 774 | |
| 775 | - Fixed too tight command queueing after tape stop/pause command |
| 776 | issued from within interrupt service routine (Showed as timeout |
| 777 | on Acknowledge errors during retries on some systems) |
| 778 | - Tried to fix timeouts when using 425 ft tape because the extended |
| 779 | length doesn't seem to be detected by the hardware. |
| 780 | We now use the format code from the header segment so adjust the |
| 781 | timing after reading the header segment. |
| 782 | - Fixed some messages stating 'unexpected something...' being not |
| 783 | unexpected anymore. |
| 784 | - Started preparations for merge of dynamic buffer allocation and |
| 785 | compression code. |
| 786 | - Changed some debug messages to include relevant segment information |
| 787 | at level 4. |
| 788 | - Included early bail-out when drive offline, preventing a lot of |
| 789 | false messages. |
| 790 | - Moved ftape_parameter_xxx() offsets into function instead of in calls. |
| 791 | - Removed 'weird, drive busy but no data' error when caused by |
| 792 | an error during a read-id. |
| 793 | - Improved 'timeout on acknowledge' diagnostics. |
| 794 | - Moved MODULE option into Configure. |
| 795 | - Reduced code size when no tracing at all was set (Claus Heine). |
| 796 | - No longer log error code 0 (no error) as an error. |
| 797 | |
| 798 | |
| 799 | ===== Release notes for ftape-2.02b, 09/04/95 ===== |
| 800 | |
| 801 | - Relaxed timing for status operation and displaying |
| 802 | abnormal results. Hopefully this shows what's going |
| 803 | wrong with the Conner TSM850R drives. |
| 804 | - Created script for configuration, using version number |
| 805 | of kernel source if available, otherwise /proc/version. |
| 806 | - Fixed conditionals in kernel-interface.c. |
| 807 | - Removed unavoidable TRACE output. |
| 808 | |
| 809 | |
| 810 | ===== Release notes for ftape-2.02a, 01/04/95 ===== |
| 811 | |
| 812 | - Implemented `new-style' (versioned) modules support for new |
| 813 | kernels. |
| 814 | - Reduced size of module by moving static data to bss. |
| 815 | - Now using version number of kernel source instead of running |
| 816 | kernel for kernel versions >= 1.1.82 |
| 817 | - Added feedback on drive speeds to vendor information. |
| 818 | - Included fixed insmod sources to distribution (Let's hope |
| 819 | the modules distribution get fixed soon :-/). |
| 820 | |
| 821 | Note that I haven't yet implemented any of the code extension I |
| 822 | received. I hope to find some time to do this soon. |
| 823 | |
| 824 | |
| 825 | ===== Release notes for ftape-2.02, 15/01/95 ===== |
| 826 | |
| 827 | |
| 828 | - Fixed failing repositioning when overshoot was incremented. |
| 829 | - Fixed rate selection: Because of a deficiency in the QIC-117 |
| 830 | specification one cannot distinguish between a not implemented |
| 831 | and a failing command. Therefor we now try to find out if the |
| 832 | drive does support this command before usage. |
| 833 | - Fixed error retry using wrong offset in fdc-isr. |
| 834 | - Improved retry code to retry only once on a single no-data |
| 835 | error in a segment. |
| 836 | - Validate sector number extracted from eof mark because an |
| 837 | invalid file mark (due to ???) could cause kernel panic. |
| 838 | - Split ftape-io.c into ftape-io.c and ftape-ctl.c files. |
| 839 | - Corrected too high media error count after writing to |
| 840 | a bad tape. |
| 841 | - Added #include <asm/segment.h> again because old kernel versions |
| 842 | need it. |
| 843 | - Fixed fdc not being disabled when open failed because no tape |
| 844 | drive was found. |
| 845 | - Fixed problem with soft error in sector 32 (shift operator with |
| 846 | shiftcount 32 is not defined). |
| 847 | |
| 848 | |
| 849 | ===== Release notes for ftape-2.01, 08/01/95 ===== |
| 850 | |
| 851 | |
| 852 | - Removed TESTING setting from distributed Makefile. |
| 853 | - Fixed `mt asf' failure: Rewind was deferred to close which |
| 854 | overruled the fsf ioctl. |
| 855 | - Prevented non-interruptible commands being interrupted. |
| 856 | - Added missing timeout.pause setting. |
| 857 | - Maximum tape speed read from drive type information table. |
| 858 | If the information is not in the table (0) the drive will |
| 859 | determine the speed itself and put a message in the logfile. |
| 860 | This information should then be added to the table in the |
| 861 | vendors.h file (and reported to me). |
| 862 | - Added call to ftape_init_drive after soft reset for those |
| 863 | (antique) drives that don't do an implicit seek_load_point |
| 864 | after a reset or power up. |
| 865 | - Don't try to set data rate if reset failed. |
| 866 | - Prevent update of seek variables when starting from the |
| 867 | beginning or the end of the tape. |
| 868 | - Fixed wrong adjustment of overshoot in seek_forward(). |
| 869 | - Added sync to Makefile (again). |
| 870 | - Added code to diagnose timer problems (calibr.c). |
| 871 | - Replaced time differences by timediff calls. |
| 872 | - Removed reference to do_floppy from object for recent kernels. |
| 873 | - Fixed wrong display of 'failing dma controller' message. |
| 874 | - Removed various no longer used #include statements. |
| 875 | - Added max. tape speed value to vendor-struct. |
| 876 | - Changed ftape-command to check pre-conditions and wait |
| 877 | if needed. |
| 878 | - Further updated qic117.h to rev G. |
| 879 | - Combined command name table and restrictions table to one. |
| 880 | Extended this table with some new fields. |
| 881 | - Increased timeout on Ack timer value and included code to |
| 882 | report out of spec behaviour. |
| 883 | - Increased rewind timeout margin to calculated + 20%. |
| 884 | - Improved data rate selection so it won't fail on some |
| 885 | older (pre standard) drives. |
| 886 | - Changed initialisation code so drive will be rewound if the |
| 887 | driver is reloaded and the tape is not at bot. |
| 888 | - Moved some of the flush operations from close to the ioctls. |
| 889 | - Added exit code value to failing verify area message. |
| 890 | - Loop until tape halted in smart-stop. |
| 891 | - Fast seek handled specially if located at bot or eot. |
| 892 | - Being more conservative on overshoot value. |
| 893 | |
| 894 | |
| 895 | ===== Release notes for ftape-2.00, 31/12/94 ===== |
| 896 | |
| 897 | The Install-guide is completely rewritten and now also includes |
| 898 | some information on how to use the driver. If you're either new |
| 899 | to ftape or new to Unix tape devices make sure to read it ! |
| 900 | |
| 901 | If you own a pci system and experience problems with the |
| 902 | ftape driver make sure to read the README.PCI file. It contains |
| 903 | some hints on how to fix your hardware. |
| 904 | |
| 905 | For anybody who hasn't noticed: The version number of the |
| 906 | driver has been incremented (The latest released version has |
| 907 | been version 1.14d). |
| 908 | This has been done for two major reasons: |
| 909 | |
| 910 | o A new (better) error recovery scheme is implemented. |
| 911 | o Support for new drive types has been added. |
| 912 | |
| 913 | All these improvements/changes will probably include a couple |
| 914 | of new (and old?) bugs. If you encounter any problems that you think |
| 915 | I'm not yet aware of, feel free to send a report to <bas@vimec.nl>. |
| 916 | I recommend keeping a version of ftape-1.14d available, just |
| 917 | in case ;-) |
| 918 | |
| 919 | This version should work with all kernel versions from 1.0.9 up |
| 920 | to 1.1.72 (and probably earlier and later versions too). |
| 921 | |
| 922 | |
| 923 | Major new features: |
| 924 | |
| 925 | - Better handling of tapes with defects: When a sector repeatedly |
| 926 | (SOFT_RETRIES in ftape.h) cannot be written to or read from it is |
| 927 | marked as an hard error and gets skipped. |
| 928 | The error correction code can handle up to three of these hard |
| 929 | errors provided there are no other errors in that segment (32 Kb). |
| 930 | |
| 931 | - Allows writing to tapes with defects (although the risk of loosing |
| 932 | data increases !) |
| 933 | Look for the media-defects entry printed with the statistics when |
| 934 | the tape is closed. A non-zero value here shows a bad tape. |
| 935 | [the actual count is wrong (too high), this is a known bug]. |
| 936 | |
| 937 | - Use of backup header segment if first one is failing. |
| 938 | |
| 939 | - Support for extended length tapes with QIC-80: both 425 and 1100 ft. |
| 940 | 0.25 inch tapes are now recognized and handled. |
| 941 | |
| 942 | - Support for new QIC-80 drives with 8 mm `wide' tapes (e.g. Conner |
| 943 | TSM 420). |
| 944 | |
| 945 | - Support for new QIC-3010 and QIC-3020 drives (experimental) with |
| 946 | both 0.25 inch and 8 mm tapes. |
| 947 | |
| 948 | Some minor features were added, a couple of small bugs were fixed and |
| 949 | probably some new ones introduced ;-). |
| 950 | |
| 951 | [lseek() didn't make it into this version] |
| 952 | |
| 953 | Have fun, |
| 954 | |
| 955 | Bas. |
| 956 | ---- |
| 957 | LocalWords: ftape MCONFIG mt VFS zftape resp sftape proc subdir MTIOCVOLINFO |
| 958 | LocalWords: MTIOCGETSIZE BOT EOD MTBSF zft kerneld modprobe kdtime contrib TR |
| 959 | LocalWords: MTSETBLK afio uninstall texi www EIO QIC init sft eof aka dma GB |
| 960 | LocalWords: SIGKILL MTIOCFTCMD mmap Iomega FDC fdc io gnumt mtio fc asm inb |
| 961 | LocalWords: outb ft qic frontend TeXinfo irq mach MODVERSIONS CONFIG html dvi |
| 962 | LocalWords: usr doc SMP Mb Dunno FIXME vtblc perl listtape volinfo fsf MTWEOF |
| 963 | LocalWords: amanda degaussed ComByte DoublePlay whraven njackn com MTIOC vtbl |
| 964 | LocalWords: GETBLKSZ MAKEDEV zftape's linux dif CVS Revison cp MTREW MTOFFL |
| 965 | LocalWords: MTFSF BSF Marcin Dalecki GCC Config cpio swapout Kai Harrekilde |
| 966 | LocalWords: Pederson khp dolphinics Justus claus momo rwth aachen Laarhoven |