1 --- ref-2.3.99-pre6-atm-0.77/drivers/atm/fore200e.c
2 +++ linux-2.3.99-pre6-atm-0.77-fore200e-0.2f/drivers/atm/fore200e.c Sun May 21 15:21:38 2000
4 #define FORE200E_52BYTE_AAL0_SDU
7 -#define FORE200E_VERSION "0.2d"
8 +#define FORE200E_VERSION "0.2f"
11 #define FORE200E "fore200e: "
13 fore200e_push_rpd(fore200e, entry->rpd);
16 - printk(FORE200E "damaged PDU on %d.%d.%d\n",
17 - fore200e->atm_dev->number, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
18 + DPRINTK(1, "damaged PDU on %d.%d.%d\n",
19 + fore200e->atm_dev->number, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
22 fore200e_collect_rpd(fore200e, entry->rpd);
27 - tasklet_disable(&fore200e->tasklet);
28 + spin_lock_bh(&fore200e->tx_lock);
30 entry = &txq->host_entry[ txq->head ];
33 fore200e_irq_tx(fore200e);
35 if (*entry->status != STATUS_FREE) {
37 - tasklet_enable(&fore200e->tasklet);
39 + spin_unlock_bh(&fore200e->tx_lock);
41 /* retry once again? */
45 entry->data = kmalloc(tx_len, GFP_ATOMIC | GFP_DMA);
46 if (entry->data == NULL) {
48 - tasklet_enable(&fore200e->tasklet);
50 + spin_unlock_bh(&fore200e->tx_lock);
56 FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX);
59 - tasklet_enable(&fore200e->tasklet);
60 + spin_unlock_bh(&fore200e->tx_lock);
62 /* ensure DMA synchronisation */
63 fore200e->bus->dma_sync(fore200e, tpd->tsd[ 0 ].buffer, tpd->tsd[ 0 ].length, FORE200E_DMA_TODEVICE);
66 DPRINTK(2, "device %s being initialized\n", fore200e->name);
68 + spin_lock_init(&fore200e->tx_lock);
69 init_MUTEX(&fore200e->rate_sf);
71 cpq = fore200e->cp_queues = (struct cp_queues*) (fore200e->virt_base + FORE200E_CP_QUEUES_OFFSET);
72 --- ref-2.3.99-pre6-atm-0.77/drivers/atm/fore200e.h
73 +++ linux-2.3.99-pre6-atm-0.77-fore200e-0.2f/drivers/atm/fore200e.h Mon May 8 13:34:33 2000
75 struct stats* stats; /* last snapshot of the stats */
77 struct semaphore rate_sf; /* protects rate reservation ops */
78 + spinlock_t tx_lock; /* protects tx ops */
79 struct tasklet_struct tasklet; /* performs interrupt work */
82 --- /dev/null Thu Jan 1 01:00:00 1970
83 +++ linux-2.4.20/drivers/atm/fore200e.CHANGES Mon Dec 4 14:34:31 2000
85 +Version 0.2f (May, 21, 2000)
86 +----------------------------
88 + this is just the 'official' release of the preceding version.
89 + It also fixes a buglet spotted by Mitchell Blank Jr.
91 + - the driver no longer mess with vcc->timestamp.
94 +Version 0.2e (May, 8, 2000)
95 +---------------------------
97 + this is an experimental version, intended as a first attempt
98 + to fix the lockup problems encountered by a few users
99 + under heavy loads/SMP (probably introduced with the tasklet
102 + - use the spin_lock_bh() machinery to guard the
103 + critical section of the tx code.
104 + - minor fix to the Makefile test that tells the target
105 + endianess from <asm/byteorder.h>.
108 +Version 0.2d (Mar, 28, 2000)
109 +----------------------------
111 + - fix fatal bug in fore200e_open(): the ATM_VF_READY flag
112 + should be set, not cleared!
113 + - fix SBUS DMA direction flags.
114 + - move interrupt handler work to tasklet.
115 + - the compile no longer fails when the driver is compiled
116 + without any hardware support (i.e. with both PCA and SBA
117 + support disabled) (spotted by Arjan van de Ven). Also display
118 + a message to warn the user.
121 +Version 0.2c (Mar, 23, 2000)
122 +----------------------------
124 + this is a minor interim release. It does not provide significant
125 + improvement to the driver code.
127 + - initiate transition to the new-style PCI driver support.
128 + - minor cosmetic changes.
129 + - fix typos in Documentation/networking/fore200e.txt.
132 +Version 0.2b (Feb, 23, 2000)
133 +----------------------------
135 + - update of PCI and SBUS DVMA code to 2.3.47-7 (DVMA functions
136 + now have a 'direction' argument).
139 +Version 0.2a (Feb, 11, 2000)
140 +----------------------------
142 + this release completes the transition of the driver to the new
143 + DVMA interface. Many thanks to Marconi Networks (formerly FORE
144 + Systems) for having placed their binary firmware images under GPL.
146 + - switch to the new PCI interface (requires 2.3.42+).
147 + - minor code cleanup.
148 + - add FORE firmware copyright notice.
151 +Version 0.2 (Jan, 22, 2000)
152 +---------------------------
154 + as the driver is now shipped with the regular linux-atm
155 + distributions, it is now released as a diff against the latest
158 + - drop support of 2.2.x and pre-2.3.36 kernels.
159 + - switch to the new SBUS interface.
162 +Version 0.1f (Jan, 22, 2000)
163 +----------------------------
165 + this is an interim release that makes the driver ready for the
166 + important 2.3.35+ transition. Significant parts of the driver
167 + have been rewritten to comply to the principles of the new SBUS
168 + interface introduced by the latest 2.3 kernels.
171 + - rewrite memory management routines.
172 + - rewrite DMA/DVMA management routines.
173 + - rewrite I/O management routines (and fix design weakness).
174 + - fix a bug in the initialization of the buffer supply queue.
175 + - cmd polling now gives up immediately if an error condition
178 + note that the driver remains useable with 2.2 and earlier 2.3 kernels,
179 + but future releases will drop support of pre-2.3.36 kernels.
182 +Version 0.1e (Dec, 23, 1999)
183 +----------------------------
185 + - support of S/UNI hardware loopback modes via SUNI_GETLOOP/SUNI_SETLOOP
187 + - add the related ioctl entries in arch/sparc64/kernel/ioctl32.c.
188 + - add a simple 'sunimode' utility to get/set the S/UNI loopback mode
189 + (should also work with all the drivers that use suni.c/suni.h).
190 + - fix handling of 52-byte AAL0 SDUs used by atmdump-like applications:
191 + * if qos.txtp.max_sdu == 52, the following tx SDU format is expected
193 + <4-byte cell header><48-byte AAL0 payload>[<48-byte AAL0 payload>...]
195 + <--- 52-byte AAL0 SDU used by atmdump --->[<- opt. extra payloads ->]
196 + otherwise, the following tx SDU format is assumed:
197 + <48-byte AAL0 payload>[<48-byte AAL0 payload>...]
198 + * if qos.txtp.max_sdu == 52, the rx SDUs are delivered as follows:
199 + <4-byte cell header><48-byte AAL0 payload>
201 + <- 52-byte AAL0 SDU expected by atmdump ->
202 + otherwise, the SDUs are delivered as: <48-byte AAL0 payload>
205 +Version 0.1d (Dec, 16, 1999)
206 +----------------------------
208 + - add a retry mechanism so that the driver does not immediately give up
209 + if the tx queue is saturated. Saturation of the transmit queue may occur
210 + under extreme conditions, when a fast host continuously submits very
211 + small frames or raw AAL0 cells.
212 + - add a new config option to tune the retry mecanism.
213 + - improve AAL0 support. Attempting to transmit incomplete cell payloads
214 + over an AAL0 VC simply used to nuke the PCA board.
217 +Version 0.1c (Nov, 22, 1999)
218 +----------------------------
220 + - endian-dependent code no longer depends on arch-specific definitions
221 + (e.g. __powerpc__ or __sparc_v9__) but on __BIG_ENDIAN/__LITTLE_ENDIAN
222 + - the right PCA-200E firmware is no longer selected according to
223 + a list of well-known archs in Config.in, but is guessed from
224 + <asm/byteorder.h> in Makefile.
225 + - rbd/rsd handles now use the FORE200E_BUF2HDL() and FORE200E_HDL2BUF()
227 + - minor cosmetic changes.
228 + - spend some time playing with AAL0. Seems to work with MTU = 48 bytes.
231 +Version 0.1b (Nov, 16, 1999)
232 +----------------------------
234 + - improve the configuration process in order to avoid confusion
235 + caused by the firmware stuff.
236 + - update accordingly the build process and the help file.
238 + (note that the driver code is unchanged)
241 +Version 0.1a (Nov, 2, 1999)
242 +---------------------------
244 + - use new mutex initializer in 2.3.1+ kernels.
245 + - add CHANGES file.
248 +Version 0.1 (Oct, 25, 1999)
249 +---------------------------
251 + - first public release
252 --- /dev/null Thu Jan 1 01:00:00 1970
253 +++ linux-2.4.20/drivers/atm/fore200e.README Mon Dec 4 14:34:31 2000
256 +linux-2.4.0-test9-fore200e-0.3.tar
257 +----------------------------------
259 +This package updates the support of the FORE Systems 200E-series ATM
260 +adapters by the Linux operating system. Note that the driver itself is
261 +now distributed with the regular Linux kernel distribution.
263 +It is based on the earlier PCA-200E driver written by Uwe Dannowski.
265 +This device driver simultaneously supports PCA-200E and SBA-200E adapters on
266 +i386, alpha (untested), powerpc, sparc and sparc64 hosts.
268 +The intent is to enable the use of different models of FORE adapters at the
269 +same time, by servers that have several bus interfaces (such as PCI+SBUS,
270 +PCI+MCA or PCI+EISA).
271 +Only PCI and SBUS devices are currently supported by the driver, but support
272 +for other bus interfaces such as EISA should not be too hard to add (this may
273 +be more tricky for the MCA bus, though, as FORE made some MCA-specific
274 +modifications to the adapter's AALI interface).
276 +The driver is shipped with firmware data being uploaded to the ATM adapters
277 +at system boot time or at module loading time. The supplied firmware images
278 +should work with all adapters.
280 +However, if you encounter problems (the firmware doesn't start or the driver
281 +is unable to read the PROM data), you may consider trying another firmware
282 +version. Alternative binary firmware images can be found somewhere on the
283 +ForeThough CD-ROM supplied with your adapter by FORE Systems.
285 +You can also get the latest firmware images from FORE Systems at
286 +http://www.fore.com. Register TACTics Online and go to
287 +the 'software updates' pages. The firmware binaries are part of
288 +the various ForeThough software distributions.
290 +Notice that different versions of the PCA-200E firmware exist, depending
291 +on the endianess of the host architecture. The driver is shipped with
292 +both little and big endian PCA firmware images.
294 +Name and location of the alternative firmware images can be set at kernel
295 +configuration time. See the INSTALL file for details.
297 +Also note that the firmware binaries are the intellectual property
298 +of FORE Systems, Inc. Please read the fore200e_firmware_copyright file.
302 +Driver features summary
303 +-----------------------
305 + - simultaneously supports PCA-200E and SBA-200E adapters;
306 + - works on i386, powerpc, SBUS-based sparc and
307 + SBUS or PCI-based sparc64 architectures;
308 + - now targeted to 2.4.0-test9 kernels;
309 + - uses new DVMA PCI and SBUS interfaces;
310 + - useable as a removable kernel module;
311 + - supports FORE pseudo-CBR rate control;
312 + - the reserved CBR rate can be changed after VC setup;
313 + - supports AAL0, AAL3/4 and AAL5;
314 + - supports S/UNI hardware loopback modes;
315 + - internal design focuses on portability and extensibility.
318 +Restrictions / Known bugs
319 +-------------------------
321 + - only VP=0 is supported;
322 + - 'insmod' coredumps when attempting to load the driver on sparc64
323 + hosts (at least using the old Ultrapenguin 1.1.9 distribution);
324 + - some memory resources cannot be freed on sparc, sparc64 and powerpc,
325 + because the required support is still missing in 2.2 and 2.3 kernels.
326 + You shouldn't try to unload the module driver on these platforms.
332 +Feedback is welcome. Please send success stories/bug reports/
333 +patches/improvement/comments/flames to <lizzi@cnam.fr>.