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1 | Sat May 12 12:00 2001 Gerard Roudier (groudier@club-internet.fr) | ||
2 | * version ncr53c8xx-3.4.3b | ||
3 | - Ensure LEDC bit in GPCNTL is cleared when reading the NVRAM. | ||
4 | Fix sent by Stig Telfer <stig@api-networks.com>. | ||
5 | - Define scsi_set_pci_device() as nil for kernel < 2.4.4. | ||
6 | |||
7 | Mon Feb 12 22:30 2001 Gerard Roudier (groudier@club-internet.fr) | ||
8 | * version ncr53c8xx-3.4.3 | ||
9 | - Call pci_enable_device() as AC wants this to be done. | ||
10 | - Get both the BAR cookies actual and PCI BAR values. | ||
11 | (see Changelog.sym53c8xx rev. 1.7.3 for details) | ||
12 | - Merge changes for linux-2.4 that declare the host template | ||
13 | in the driver object also when the driver is statically | ||
14 | linked with the kernel. | ||
15 | |||
16 | Sun Sep 24 21:30 2000 Gerard Roudier (groudier@club-internet.fr) | ||
17 | * version ncr53c8xx-3.4.2 | ||
18 | - See Changelog.sym53c8xx, driver version 1.7.2. | ||
19 | |||
20 | Wed Jul 26 23:30 2000 Gerard Roudier (groudier@club-internet.fr) | ||
21 | * version ncr53c8xx-3.4.1 | ||
22 | - Provide OpenFirmare path through the proc FS on PPC. | ||
23 | - Remove trailing argument #2 from a couple of #undefs. | ||
24 | |||
25 | Sun Jul 09 16:30 2000 Gerard Roudier (groudier@club-internet.fr) | ||
26 | * version ncr53c8xx-3.4.0 | ||
27 | - Remove the PROFILE C and SCRIPTS code. | ||
28 | This facility was not this useful and thus was not longer | ||
29 | desirable given the increasing complexity of the driver code. | ||
30 | - Merges from FreeBSD sym-1.6.2 driver: | ||
31 | * Clarify memory barriers needed by the driver for architectures | ||
32 | that implement a weak memory ordering. | ||
33 | - General cleanup: | ||
34 | Move definitions for barriers and IO/MMIO operations to the | ||
35 | sym53c8xx_defs.h header files. They are now shared by the | ||
36 | both drivers. | ||
37 | Use SCSI_NCR_IOMAPPED instead of NCR_IOMAPPED. | ||
38 | |||
39 | Thu May 11 12:30 2000 Pam Delaney (pam.delaney@lsil.com) | ||
40 | * revision 3.3b | ||
41 | |||
42 | Mon Apr 24 12:00 2000 Gerard Roudier (groudier@club-internet.fr) | ||
43 | * revision 3.2i | ||
44 | - Return value 1 (instead of 0) from the driver setup routine. | ||
45 | - Let the driver also attach controllers that have been set to | ||
46 | OFF in the NVRAM as it did prior to revision 3.2g. | ||
47 | |||
48 | Sat Apr 1 12:00 2000 Gerard Roudier (groudier@club-internet.fr) | ||
49 | * revision 3.2h | ||
50 | - Fix a compilation problem on Alpha introduced in version 3.2g. | ||
51 | (`port' changed to `base_io'). | ||
52 | - Move from `sym' to this driver a tiny change for __sparc__ that | ||
53 | applies to cache line size (? Probably from David S Miller). | ||
54 | - Make sure no data transfer will happen for Scsi_Cmnd requests | ||
55 | that supply SCSI_DATA_NONE direction (this avoids some BUG() | ||
56 | statement in the PCI code when a data buffer is also supplied). | ||
57 | |||
58 | Thu Mar 16 9:30 2000 Pam Delaney (pam.delaney@lsil.com) | ||
59 | * revision 3.3b-3 | ||
60 | - Added exclusion for the 53C1010 and 53C1010_66 chips | ||
61 | to the driver (change to sym53c8xx_comm.h). | ||
62 | |||
63 | Mon March 6 23:15 2000 Gerard Roudier (groudier@club-internet.fr) | ||
64 | * revision 3.2g | ||
65 | - Add the file sym53c8xx_comm.h that collects code that should | ||
66 | be shared by sym53c8xx and ncr53c8xx drivers. For now, it is | ||
67 | a header file that is only included by the ncr53c8xx driver, | ||
68 | but things will be cleaned up later. This code addresses | ||
69 | notably: | ||
70 | * Chip detection and PCI related initialisations | ||
71 | * NVRAM detection and reading | ||
72 | * DMA mapping | ||
73 | * Boot setup command | ||
74 | * And some other ... | ||
75 | - Add support for the new dynamic dma mapping kernel interface. | ||
76 | Requires Linux-2.3.47 (tested with pre-2.3.47-6). | ||
77 | - Get data transfer direction from the scsi command structure | ||
78 | (Scsi_Cmnd) when this information is available. | ||
79 | |||
80 | Mon March 6 23:15 2000 Gerard Roudier (groudier@club-internet.fr) | ||
81 | * revision 3.2g | ||
82 | - Add the file sym53c8xx_comm.h that collects code that should | ||
83 | be shared by sym53c8xx and ncr53c8xx drivers. For now, it is | ||
84 | a header file that is only included by the ncr53c8xx driver, | ||
85 | but things will be cleaned up later. This code addresses | ||
86 | notably: | ||
87 | * Chip detection and PCI related initialisations | ||
88 | * NVRAM detection and reading | ||
89 | * DMA mapping | ||
90 | * Boot setup command | ||
91 | * And some other ... | ||
92 | - Add support for the new dynamic dma mapping kernel interface. | ||
93 | Requires Linux-2.3.47 (tested with pre-2.3.47-6). | ||
94 | - Get data transfer direction from the scsi command structure | ||
95 | (Scsi_Cmnd) when this information is available. | ||
96 | |||
97 | Fri Jan 14 14:00 2000 Pam Delaney (pam.delaney@lsil.com) | ||
98 | * revision pre-3.3b-1 | ||
99 | - Merge parallel driver series 3.31 and 3.2e | ||
100 | |||
101 | Tue Jan 11 14:00 2000 Pam Delaney (pam.delaney@lsil.com) | ||
102 | * revision 3.31 | ||
103 | - Added support for mounting disks on wide-narrow-wide | ||
104 | scsi configurations. | ||
105 | - Built off of version 3.30 | ||
106 | |||
107 | Mon Jan 10 13:30 2000 Pam Delaney (pam.delaney@lsil.com) | ||
108 | * revision 3.30 | ||
109 | - Added capability to use the integrity checking code | ||
110 | in the kernel (optional). | ||
111 | - Disabled support for the 53C1010. | ||
112 | - Built off of version 3.2c | ||
113 | |||
114 | Sat Jan 8 22:00 2000 Gerard Roudier (groudier@club-internet.fr) | ||
115 | * revision 3.2e | ||
116 | - Add year 2000 copyright. | ||
117 | - Display correctly bus signals when bus is detected wrong. | ||
118 | - Remove the dead code that broke driver 3.2d. | ||
119 | |||
120 | Mon Dec 6 22:00 1999 Gerard Roudier (groudier@club-internet.fr) | ||
121 | * revision 3.2d | ||
122 | - Change messages written by the driver at initialisation and | ||
123 | through the /proc FS (rather cosmetic changes that consist in | ||
124 | printing out the PCI bus number and device/function). | ||
125 | - Get rid of the old PCI bios interface, but preserve kernel 2.0 | ||
126 | compatibility from a simple wrapper. | ||
127 | - Remove the compilation condition about having to acquire the | ||
128 | io_request_lock since it seems to be a definite feature now.:) | ||
129 | - proc_dir structure no longer needed for kernel >= 2.3.27. | ||
130 | - Change the driver detection code by the sym53c8xx one, modulo | ||
131 | some minor changes. The driver can now attach any number of | ||
132 | controllers (>40) and does no longer hoger stack space at | ||
133 | initialisation. | ||
134 | - Definitely disable overlapped PCI arbitration for all dual | ||
135 | function chips, since I cannot make sure for what chip revisions | ||
136 | it is actually safe. | ||
137 | - Add support for the SYM53C1510D. | ||
138 | - Update the poor Tekram sync factor table. | ||
139 | - Remove the compilation condition about having to acquire the | ||
140 | io_request_lock since it seems to be a definite feature now.:) | ||
141 | - proc_dir structure no longer needed for kernel >= 2.3.27. | ||
142 | |||
143 | Sat Sep 11 18:00 1999 Gerard Roudier (groudier@club-internet.fr) | ||
144 | * revision 3.2c | ||
145 | - Handle correctly (hopefully) jiffies wrap-around. | ||
146 | - Restore the entry used to detect 875 until revision 0xff. | ||
147 | (I removed it inadvertently, it seems :) ) | ||
148 | - Replace __initfunc() which is deprecated stuff by __init which | ||
149 | is not yet so. ;-) | ||
150 | - Add support of some 'resource handling' for linux-2.3.13. | ||
151 | Basically the BARs have been changed to something more complex | ||
152 | in the pci_dev structure. | ||
153 | - Remove some deprecated code. | ||
154 | |||
155 | Sat May 10 11:00 1999 Gerard Roudier (groudier@club-internet.fr) | ||
156 | * revision pre-3.2b-1 | ||
157 | - Support for the 53C895A by Pamela Delaney <pam.delaney@lsil.com> | ||
158 | The 53C895A contains all of the features of the 896 but has only | ||
159 | one channel and has a 32 bit PCI bus. It does 64 bit PCI addressing | ||
160 | using dual cycle PCI data transfers. | ||
161 | - Miscellaneous minor fixes. | ||
162 | - Some additions to the README.ncr53c8xx file. | ||
163 | |||
164 | Sun Apr 11 10:00 1999 Gerard Roudier (groudier@club-internet.fr) | ||
165 | * revision 3.2a | ||
166 | - Add 'hostid:#id' boot option. This option allows to change the | ||
167 | default SCSI id the driver uses for controllers. | ||
168 | - Remove nvram layouts and driver set-up structures from the C source, | ||
169 | and use the one defined in sym53c8xx_defs.h file. | ||
170 | (shared by both drivers). | ||
171 | - Set for now MAX LUNS to 16 (instead of 8). | ||
172 | |||
173 | Thu Mar 11 23:00 1999 Gerard Roudier (groudier@club-internet.fr) | ||
174 | * revision 3.2 (8xx-896 driver bundle) | ||
175 | - Only define the host template in ncr53c8xx.h and include the | ||
176 | sym53c8xx_defs.h file. | ||
177 | - Declare static all symbols that do not need to be visible from | ||
178 | outside the driver code. | ||
179 | - Add 'excl' boot command option that allows to pass to the driver | ||
180 | io address of devices not to attach. | ||
181 | - Add info() function called from the host template to print | ||
182 | driver/host information. | ||
183 | - Minor documentation additions. | ||
184 | |||
185 | Sat Mar 6 11:00 1999 Gerard Roudier (groudier@club-internet.fr) | ||
186 | * revision 3.1h | ||
187 | - Fix some oooold bug that hangs the bus if a device rejects a | ||
188 | negotiation. Btw, the corresponding stuff also needed some cleanup | ||
189 | and thus the change is a bit larger than it could have been. | ||
190 | - Still some typo that made compilation fail for 64 bit (trivial fix). | ||
191 | |||
192 | Sun Feb 14:00 1999 Gerard Roudier (groudier@club-internet.fr) | ||
193 | * revision 3.1g | ||
194 | - Deal correctly with 64 bit PCI address registers on Linux 2.2. | ||
195 | Pointed out by Leonard Zubkoff. | ||
196 | - Allow to tune request_irq() flags from the boot command line using | ||
197 | ncr53c8xx=irqm:??, as follows: | ||
198 | a) If bit 0x10 is set in irqm, SA_SHIRQ flag is not used. | ||
199 | b) If bit 0x20 is set in irqm, SA_INTERRUPT flag is not used. | ||
200 | By default the driver uses both SA_SHIRQ and SA_INTERRUPT. | ||
201 | Option 'ncr53c8xx=irqm:0x20' may be used when an IRQ is shared by | ||
202 | a 53C8XX adapter and a network board. | ||
203 | - Tiny mispelling fixed (ABORT instead of ABRT). Was fortunately | ||
204 | harmless. | ||
205 | - Negotiate SYNC data transfers with CCS devices. | ||
206 | |||
207 | Sat Jan 16 17:30 1999 Gerard Roudier (groudier@club-internet.fr) | ||
208 | * revision 3.1f | ||
209 | - Some PCI fix-ups not needed any more for PPC (from Cort). | ||
210 | - Cache line size set to 16 DWORDS for Sparc (from DSM). | ||
211 | - Waiting list look-up didn't work for the first command of the list. | ||
212 | - Remove 2 useless lines of code. | ||
213 | |||
214 | Sun Dec 13 18:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
215 | * revision 3.1e | ||
216 | - Same work-around as for the 53c876 rev <= 0x15 for 53c896 rev 1: | ||
217 | Disable overlapped arbitration. This will not make difference | ||
218 | since the chip has on-chip RAM. | ||
219 | |||
220 | Thu Nov 26 22:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
221 | * revision 3.1d | ||
222 | - The SISL RAID change requires now remap_pci_mem() stuff to be | ||
223 | compiled for __i386__ when normal IOs are used. | ||
224 | - Minor spelling fixes in doc files. | ||
225 | |||
226 | Sat Nov 21 18:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
227 | * revision 3.1c | ||
228 | - Ignore chips that are driven by SISL RAID (DAC 960). | ||
229 | Change sent by Leonard Zubkoff and slightly reworked. | ||
230 | - Still a buglet in the tags initial settings that needed to be fixed. | ||
231 | It was not possible to disable TGQ at system startup for devices | ||
232 | that claim TGQ support. The driver used at least 2 for the queue | ||
233 | depth but did'nt keep track of user settings for tags depth lower | ||
234 | than 2. | ||
235 | |||
236 | Wed Nov 11 10:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
237 | * revision 3.1b | ||
238 | - The driver was unhappy when configured with default_tags > MAX_TAGS | ||
239 | Hopefully doubly-fixed. | ||
240 | - Update the Configure.help driver section that speaks of TAGS. | ||
241 | |||
242 | Wed Oct 21 21:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
243 | * revision 3.1a | ||
244 | - Changes from Eddie Dost for Sparc and Alpha: | ||
245 | ioremap/iounmap support for Sparc. | ||
246 | pcivtophys changed to bus_dvma_to_phys. | ||
247 | - Add the 53c876 description to the chip table. This is only useful | ||
248 | for printing the right name of the controller. | ||
249 | - DEL-441 Item 2 work-around for the 53c876 rev <= 5 (0x15). | ||
250 | - Add additional checking of INQUIRY data: | ||
251 | Check INQUIRY data received length is at least 7. Byte 7 of | ||
252 | inquiry data contains device features bits and the driver might | ||
253 | be confused by garbage. Also check peripheral qualifier. | ||
254 | - Cleanup of the SCSI tasks management: | ||
255 | Remove the special case for 32 tags. Now the driver only uses the | ||
256 | scheme that allows up to 64 tags per LUN. | ||
257 | Merge some code from the 896 driver. | ||
258 | Use a 1,3,5,...MAXTAGS*2+1 tag numbering. Previous driver could | ||
259 | use any tag number from 1 to 253 and some non conformant devices | ||
260 | might have problems with large tag numbers. | ||
261 | - 'no_sync' changed to 'no_disc' in the README file. This is an old | ||
262 | and trivial mistake that seems to demonstrate the README file is | ||
263 | not often read. :) | ||
264 | |||
265 | Sun Oct 4 14:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
266 | * revision 3.0i | ||
267 | - Cosmetic changes for sparc (but not for the driver) that needs | ||
268 | __irq_itoa() to be used for printed IRQ value to be understandable. | ||
269 | - Some problems with the driver that didn't occur using driver 2.5f | ||
270 | were due to a SCSI selection problem triggered by a clearly | ||
271 | documented feature that in fact seems not to work: (53C8XX chips | ||
272 | are claimed by the manuals to be able to execute SCSI scripts just | ||
273 | after abitration while the SCSI core is performing SCSI selection). | ||
274 | This optimization is broken and has been removed. | ||
275 | - Some broken scsi devices are confused when a negotiation is started | ||
276 | on a LUN that does not correspond to a real device. According to | ||
277 | SCSI specs, this is a device firmware bug. This has been worked | ||
278 | around by only starting negotiation if the LUN has previously be | ||
279 | used for at least 1 successful SCSI command. | ||
280 | - The 'last message sent' printed out on M_REJECT message reception | ||
281 | was read from the SFBR i/o register after the previous message had | ||
282 | been sent. | ||
283 | This was not correct and affects all previous driver versions and | ||
284 | the original FreeBSD one as well. The SCSI scripts has been fixed | ||
285 | so that it now provides the right information to the C code. | ||
286 | |||
287 | Sat Jul 18 13:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
288 | * revision 3.0g | ||
289 | - Preliminary fixes for Big Endian (sent by Eddie C. Dost). | ||
290 | Big Endian architectures should work again with the driver. | ||
291 | Eddie's patch has been partially applied since current 2.1.109 | ||
292 | does not have all the Sparc changes of the vger tree. | ||
293 | - Use of BITS_PER_LONG instead of (~0UL == 0xffffffffUL) has fixed | ||
294 | the problem observed when the driver was compiled using EGCS or | ||
295 | PGCC. | ||
296 | |||
297 | Mon Jul 13 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
298 | * revision 3.0f | ||
299 | - Some spelling fixes. | ||
300 | - linux/config.h misplaced in ncr53c8xx.h | ||
301 | - MODULE_PARM stuff added for linux 2.1. | ||
302 | - check INQUIRY response data format is exactly 2. | ||
303 | - use BITS_PER_LONG if defined. | ||
304 | |||
305 | Sun Jun 28 12:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
306 | * revision 3.0e | ||
307 | - Some cleanup, spelling fixes, version checks, documentations | ||
308 | changes, etc ... | ||
309 | |||
310 | Sat Jun 20 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
311 | * revision 3.0c | ||
312 | - Add a boot setup option that allows to set up device queue depths | ||
313 | at boot-up. This option is very useful since Linux does not | ||
314 | allow to change scsi device queue depth once the system has been | ||
315 | booted up. | ||
316 | |||
317 | Sun Jun 15 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
318 | * revision 3.0a | ||
319 | - Support for up to 64 TAGS per LUN. | ||
320 | - Rewrite the TARGET vs LUN capabilities management. | ||
321 | CmdQueue is now handled as a LUN capability as it shall be. | ||
322 | This also fixes a bug triggered when disabling tagged command | ||
323 | queuing for a device that had this feature enabled. | ||
324 | - Remove the ncr_opennings() stuff that was useless under Linux | ||
325 | and hard to understand to me. | ||
326 | - Add "setverbose" procfs driver command. It allows to tune | ||
327 | verbose level after boot-up. Setting this level to zero, for | ||
328 | example avoid flooding the syslog file. | ||
329 | - Add KERN_XXX to some printk's. | ||
330 | |||
331 | Tue Jun 10 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
332 | * revision 3.0 | ||
333 | - Linux config changes for 2.0.34: | ||
334 | Remove NVRAM detection config option. This option is now enabled | ||
335 | by default but can be disabled by editing the driver header file. | ||
336 | Add a PROFILE config option. | ||
337 | - Update Configure.help | ||
338 | - Add calls to new function mdelay() for milli-seconds delay if | ||
339 | kernel version >= 2.1.105. | ||
340 | - Replace all printf(s) by printk(s). After all, the ncr53c8xx is | ||
341 | a driver for Linux. | ||
342 | - Perform auto-sense on COMMAND TERMINATED. Not sure it is useful. | ||
343 | - Some other minor changes. | ||
344 | |||
345 | Tue Jun 4 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
346 | * revision 2.6n | ||
347 | - Code cleanup and simplification: | ||
348 | Remove kernel 1.2.X and 1.3.X support. | ||
349 | Remove the _old_ target capabilities table. | ||
350 | Remove the error recovery code that have'nt been really useful. | ||
351 | Use a single alignment boundary (CACHE_LINE_SIZE) for data | ||
352 | structures. | ||
353 | - Several aggressive SCRIPTS optimizations and changes: | ||
354 | Reselect SCRIPTS code rewritten. | ||
355 | Support for selection/reselection without ATN. | ||
356 | And some others. | ||
357 | - Miscallaneous changes in the C code: | ||
358 | Count actual number of CCB queued to the controller (future use). | ||
359 | Lots of other minor changes. | ||
360 | |||
361 | Wed May 13 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
362 | * revision 2.6m | ||
363 | - Problem of missed SCSI bus reset with the 53C895 fixed by | ||
364 | Richard Waltham. The 53C895 needs about 650 us for the bus | ||
365 | mode to settle. Delays used while resetting the controller | ||
366 | and the bus have been adjusted. Thanks Richard! | ||
367 | - Some simplification for 64 bit arch done ccb address testing. | ||
368 | - Add a check of the MSG_OUT phase after Selection with ATN. | ||
369 | - The new tagged queue stuff seems ok, so some informationnal | ||
370 | message have been conditionned by verbose >= 3. | ||
371 | - Donnot reset if a SBMC interrupt reports the same bus mode. | ||
372 | - Print out the whole driver set-up. Some options were missing and | ||
373 | the print statement was misplaced for modules. | ||
374 | - Ignore a SCSI parity interrupt if the chip is not connected to | ||
375 | the SCSI bus. | ||
376 | |||
377 | Sat May 1 16:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
378 | * revision 2.6l | ||
379 | - Add CCB done queue support for Alpha and perhaps some other | ||
380 | architectures. | ||
381 | - Add some barriers to enforce memory ordering for x86 and | ||
382 | Alpha architectures. | ||
383 | - Fix something that looks like an old bug in the nego SIR | ||
384 | interrupt code in case of negotiation failure. | ||
385 | |||
386 | Sat Apr 25 21:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
387 | * revision 2.6k | ||
388 | - Remove all accesses to the on-chip RAM from the C code: | ||
389 | Use SCRIPTS to load the on-chip RAM. | ||
390 | Use SCRIPTS to repair the start queue on selection timeout. | ||
391 | Use the copy of script in main memory to calculate the chip | ||
392 | context on phase mismatch. | ||
393 | - The above allows now to use the on-chip RAM without requiring | ||
394 | to get access to the on-chip RAM from the C code. This makes | ||
395 | on-chip RAM useable for linux-1.2.13 and for Linux-Alpha for | ||
396 | instance. | ||
397 | - Some simplifications and cleanups in the SCRIPTS and C code. | ||
398 | - Buglet fixed in parity error recovery SCRIPTS (never tested). | ||
399 | - Minor updates in README.ncr53c8xx. | ||
400 | |||
401 | Wed Apr 15 21:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
402 | * revision 2.6j | ||
403 | - Incorporate changes from linux-2.1.95 ncr53c8xx driver version. | ||
404 | - Add SMP support for linux-2.1.95 and above. | ||
405 | - Fix a bug when QUEUE FULL is returned and no commands are | ||
406 | disconnected. This happens with Atlas I / L912 and may happen | ||
407 | with Atlas II / LXY4. | ||
408 | - Nail another one on CHECK condition when requeuing the command | ||
409 | for auto-sense. | ||
410 | - Call scsi_done() for all completed commands after interrupt | ||
411 | handling. | ||
412 | - Increase the done queue to 24 entries. | ||
413 | |||
414 | Sat Apr 4 20:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
415 | * revision 2.6i | ||
416 | - CTEST0 is used by the 53C885 for Power Management and | ||
417 | priority setting between the 2 functions. | ||
418 | Use SDID instead as actual target number. Just have had to | ||
419 | overwrite it with SSID on reselection. | ||
420 | - Split DATA_IN and DATA_OUT scripts into 2 sub-scripts. | ||
421 | 64 segments are moved from on-chip RAM scripts. | ||
422 | If more segments, a script in main memory is used for the | ||
423 | additional segments. | ||
424 | - Since the SCRIPTS processor continues SCRIPTS execution after | ||
425 | having won arbitration, do some stuff prior to testing any SCSI | ||
426 | phase on reselection. This should have the vertue to process | ||
427 | scripts in parallel with the SCSI core performing selection. | ||
428 | - Increase the done queue to 12 entries. | ||
429 | |||
430 | Sun Mar 29 12:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
431 | * revision 2.6h | ||
432 | - Some fixes. | ||
433 | |||
434 | Tue Mar 26 23:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
435 | * revision 2.6g | ||
436 | - New done queue. 8 entries by default (6 always useable). | ||
437 | Can be increased if needed. | ||
438 | - Resources management using doubly linked queues. | ||
439 | - New auto-sense and QUEUE FULL handling that does not need to | ||
440 | stall the NCR queue any more. | ||
441 | - New CCB starvation avoiding algorithm. | ||
442 | - Prepare CCBs for SCSI commands that cannot be queued, instead of | ||
443 | inserting these commands into the waiting list. The waiting list | ||
444 | is now only used while resetting and when memory for CCBs is not | ||
445 | yet available? | ||
446 | |||
447 | Sun Feb 8 22:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
448 | * revision 2.6f | ||
449 | - Some fixes in order to really support the 53C895, at least with | ||
450 | FAST-20 devices. | ||
451 | - Heavy changes in the target/lun resources management to allow | ||
452 | the scripts to jump directly to the CCB on reselection instead | ||
453 | of walking on the lun CCBs list. Up to 32 tags per lun are now | ||
454 | supported without script processor and PCI traffic overhead. | ||
455 | |||
456 | Sun Jan 11 22:00 1998 Gerard Roudier (groudier@club-internet.fr) | ||
457 | * revision 2.6d | ||
458 | - new (different ?) implementation of the start queue: | ||
459 | Use a simple CALL to a launch script in the CCB. | ||
460 | - implement a minimal done queue (1 entry :-) ). | ||
461 | this avoid scanning all CCBs on INT FLY (Only scan all CCBs, on | ||
462 | overflow). Hit ratio is better than 99.9 % on my system, so no | ||
463 | need to have a larger done queue. | ||
464 | - generalization of the restart of CCB on special condition as | ||
465 | Abort, QUEUE FULL, CHECK CONDITION. | ||
466 | This has been called 'silly scheduler'. | ||
467 | - make all the profiling code conditionned by a config option. | ||
468 | This spare some PCI traffic and C code when this feature is not | ||
469 | needed. | ||
470 | - handle more cleanly the situation where direction is unknown. | ||
471 | The pointers patching is now performed by the SCRIPTS processor. | ||
472 | - remove some useless scripts instructions. | ||
473 | |||
474 | Ported from driver 2.5 series: | ||
475 | ------------------------------ | ||
476 | - Use FAST-5 instead of SLOW for slow scsi devices according to | ||
477 | new SPI-2 draft. | ||
478 | - Make some changes in order to accommodate with 875 rev <= 3 | ||
479 | device errata listing 397. Minor consequences are: | ||
480 | . Leave use of PCI Write and Invalidate under user control. | ||
481 | Now, by default the driver does not enable PCI MWI and option | ||
482 | 'specf:y' is required in order to enable this feature. | ||
483 | . Memory Read Line is not enabled for 875 and 875-like chips. | ||
484 | . Programmed burst length set to 64 DWORDS (instead of 128). | ||
485 | (Note: SYMBIOS uses 32 DWORDS for the SDMS BIOS) | ||
486 | - Add 'buschk' boot option. | ||
487 | This option enables checking of SCSI BUS data lines after SCSI | ||
488 | RESET (set by default). (Submitted by Richard Waltham). | ||
489 | - Update the README file. | ||
490 | - Dispatch CONDITION MET and RESERVATION CONFLICT scsi status | ||
491 | as OK driver status. | ||
492 | - Update the README file and the Symbios NVRAM format definition | ||
493 | with removable media flags values (available with SDMS 4.09). | ||
494 | - Several PCI configuration registers fix-ups for powerpc. | ||
495 | (Patch sent by Cort). | ||