--- /dev/null
+--- ref-2.3.99-pre6-atm-0.77/drivers/atm/fore200e.c
++++ linux-2.3.99-pre6-atm-0.77-fore200e-0.2f/drivers/atm/fore200e.c Sun May 21 15:21:38 2000
+@@ -65,7 +65,7 @@
+ #define FORE200E_52BYTE_AAL0_SDU
+ #endif
+
+-#define FORE200E_VERSION "0.2d"
++#define FORE200E_VERSION "0.2f"
+
+
+ #define FORE200E "fore200e: "
+@@ -1215,8 +1215,8 @@
+ fore200e_push_rpd(fore200e, entry->rpd);
+ }
+ else {
+- printk(FORE200E "damaged PDU on %d.%d.%d\n",
+- fore200e->atm_dev->number, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
++ DPRINTK(1, "damaged PDU on %d.%d.%d\n",
++ fore200e->atm_dev->number, entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
+ }
+
+ fore200e_collect_rpd(fore200e, entry->rpd);
+@@ -1543,7 +1543,7 @@
+
+ retry_here:
+
+- tasklet_disable(&fore200e->tasklet);
++ spin_lock_bh(&fore200e->tx_lock);
+
+ entry = &txq->host_entry[ txq->head ];
+
+@@ -1553,8 +1553,8 @@
+ fore200e_irq_tx(fore200e);
+
+ if (*entry->status != STATUS_FREE) {
+-
+- tasklet_enable(&fore200e->tasklet);
++
++ spin_unlock_bh(&fore200e->tx_lock);
+
+ /* retry once again? */
+ if(--retry > 0)
+@@ -1593,8 +1593,9 @@
+
+ entry->data = kmalloc(tx_len, GFP_ATOMIC | GFP_DMA);
+ if (entry->data == NULL) {
+-
+- tasklet_enable(&fore200e->tasklet);
++
++ spin_unlock_bh(&fore200e->tx_lock);
++
+ if (vcc->pop)
+ vcc->pop(vcc, skb);
+ else
+@@ -1618,7 +1619,7 @@
+ FORE200E_NEXT_ENTRY(txq->head, QUEUE_SIZE_TX);
+ txq->txing++;
+
+- tasklet_enable(&fore200e->tasklet);
++ spin_unlock_bh(&fore200e->tx_lock);
+
+ /* ensure DMA synchronisation */
+ fore200e->bus->dma_sync(fore200e, tpd->tsd[ 0 ].buffer, tpd->tsd[ 0 ].length, FORE200E_DMA_TODEVICE);
+@@ -2355,6 +2356,7 @@
+
+ DPRINTK(2, "device %s being initialized\n", fore200e->name);
+
++ spin_lock_init(&fore200e->tx_lock);
+ init_MUTEX(&fore200e->rate_sf);
+
+ cpq = fore200e->cp_queues = (struct cp_queues*) (fore200e->virt_base + FORE200E_CP_QUEUES_OFFSET);
+--- ref-2.3.99-pre6-atm-0.77/drivers/atm/fore200e.h
++++ linux-2.3.99-pre6-atm-0.77-fore200e-0.2f/drivers/atm/fore200e.h Mon May 8 13:34:33 2000
+@@ -879,6 +879,7 @@
+ struct stats* stats; /* last snapshot of the stats */
+
+ struct semaphore rate_sf; /* protects rate reservation ops */
++ spinlock_t tx_lock; /* protects tx ops */
+ struct tasklet_struct tasklet; /* performs interrupt work */
+
+ } fore200e_t;
+--- /dev/null Thu Jan 1 01:00:00 1970
++++ linux-2.4.20/drivers/atm/fore200e.CHANGES Mon Dec 4 14:34:31 2000
+@@ -0,0 +1,167 @@
++Version 0.2f (May, 21, 2000)
++----------------------------
++
++ this is just the 'official' release of the preceding version.
++ It also fixes a buglet spotted by Mitchell Blank Jr.
++
++ - the driver no longer mess with vcc->timestamp.
++
++
++Version 0.2e (May, 8, 2000)
++---------------------------
++
++ this is an experimental version, intended as a first attempt
++ to fix the lockup problems encountered by a few users
++ under heavy loads/SMP (probably introduced with the tasklet
++ code).
++
++ - use the spin_lock_bh() machinery to guard the
++ critical section of the tx code.
++ - minor fix to the Makefile test that tells the target
++ endianess from <asm/byteorder.h>.
++
++
++Version 0.2d (Mar, 28, 2000)
++----------------------------
++
++ - fix fatal bug in fore200e_open(): the ATM_VF_READY flag
++ should be set, not cleared!
++ - fix SBUS DMA direction flags.
++ - move interrupt handler work to tasklet.
++ - the compile no longer fails when the driver is compiled
++ without any hardware support (i.e. with both PCA and SBA
++ support disabled) (spotted by Arjan van de Ven). Also display
++ a message to warn the user.
++
++
++Version 0.2c (Mar, 23, 2000)
++----------------------------
++
++ this is a minor interim release. It does not provide significant
++ improvement to the driver code.
++
++ - initiate transition to the new-style PCI driver support.
++ - minor cosmetic changes.
++ - fix typos in Documentation/networking/fore200e.txt.
++
++
++Version 0.2b (Feb, 23, 2000)
++----------------------------
++
++ - update of PCI and SBUS DVMA code to 2.3.47-7 (DVMA functions
++ now have a 'direction' argument).
++
++
++Version 0.2a (Feb, 11, 2000)
++----------------------------
++
++ this release completes the transition of the driver to the new
++ DVMA interface. Many thanks to Marconi Networks (formerly FORE
++ Systems) for having placed their binary firmware images under GPL.
++
++ - switch to the new PCI interface (requires 2.3.42+).
++ - minor code cleanup.
++ - add FORE firmware copyright notice.
++
++
++Version 0.2 (Jan, 22, 2000)
++---------------------------
++
++ as the driver is now shipped with the regular linux-atm
++ distributions, it is now released as a diff against the latest
++ linux-atm code.
++
++ - drop support of 2.2.x and pre-2.3.36 kernels.
++ - switch to the new SBUS interface.
++
++
++Version 0.1f (Jan, 22, 2000)
++----------------------------
++
++ this is an interim release that makes the driver ready for the
++ important 2.3.35+ transition. Significant parts of the driver
++ have been rewritten to comply to the principles of the new SBUS
++ interface introduced by the latest 2.3 kernels.
++
++ - clean code.
++ - rewrite memory management routines.
++ - rewrite DMA/DVMA management routines.
++ - rewrite I/O management routines (and fix design weakness).
++ - fix a bug in the initialization of the buffer supply queue.
++ - cmd polling now gives up immediately if an error condition
++ is detected.
++
++ note that the driver remains useable with 2.2 and earlier 2.3 kernels,
++ but future releases will drop support of pre-2.3.36 kernels.
++
++
++Version 0.1e (Dec, 23, 1999)
++----------------------------
++
++ - support of S/UNI hardware loopback modes via SUNI_GETLOOP/SUNI_SETLOOP
++ ioctls.
++ - add the related ioctl entries in arch/sparc64/kernel/ioctl32.c.
++ - add a simple 'sunimode' utility to get/set the S/UNI loopback mode
++ (should also work with all the drivers that use suni.c/suni.h).
++ - fix handling of 52-byte AAL0 SDUs used by atmdump-like applications:
++ * if qos.txtp.max_sdu == 52, the following tx SDU format is expected
++ by the driver:
++ <4-byte cell header><48-byte AAL0 payload>[<48-byte AAL0 payload>...]
++ i.e.
++ <--- 52-byte AAL0 SDU used by atmdump --->[<- opt. extra payloads ->]
++ otherwise, the following tx SDU format is assumed:
++ <48-byte AAL0 payload>[<48-byte AAL0 payload>...]
++ * if qos.txtp.max_sdu == 52, the rx SDUs are delivered as follows:
++ <4-byte cell header><48-byte AAL0 payload>
++ i.e.
++ <- 52-byte AAL0 SDU expected by atmdump ->
++ otherwise, the SDUs are delivered as: <48-byte AAL0 payload>
++
++
++Version 0.1d (Dec, 16, 1999)
++----------------------------
++
++ - add a retry mechanism so that the driver does not immediately give up
++ if the tx queue is saturated. Saturation of the transmit queue may occur
++ under extreme conditions, when a fast host continuously submits very
++ small frames or raw AAL0 cells.
++ - add a new config option to tune the retry mecanism.
++ - improve AAL0 support. Attempting to transmit incomplete cell payloads
++ over an AAL0 VC simply used to nuke the PCA board.
++
++
++Version 0.1c (Nov, 22, 1999)
++----------------------------
++
++ - endian-dependent code no longer depends on arch-specific definitions
++ (e.g. __powerpc__ or __sparc_v9__) but on __BIG_ENDIAN/__LITTLE_ENDIAN
++ - the right PCA-200E firmware is no longer selected according to
++ a list of well-known archs in Config.in, but is guessed from
++ <asm/byteorder.h> in Makefile.
++ - rbd/rsd handles now use the FORE200E_BUF2HDL() and FORE200E_HDL2BUF()
++ macros.
++ - minor cosmetic changes.
++ - spend some time playing with AAL0. Seems to work with MTU = 48 bytes.
++
++
++Version 0.1b (Nov, 16, 1999)
++----------------------------
++
++ - improve the configuration process in order to avoid confusion
++ caused by the firmware stuff.
++ - update accordingly the build process and the help file.
++
++ (note that the driver code is unchanged)
++
++
++Version 0.1a (Nov, 2, 1999)
++---------------------------
++
++ - use new mutex initializer in 2.3.1+ kernels.
++ - add CHANGES file.
++
++
++Version 0.1 (Oct, 25, 1999)
++---------------------------
++
++ - first public release
+--- /dev/null Thu Jan 1 01:00:00 1970
++++ linux-2.4.20/drivers/atm/fore200e.README Mon Dec 4 14:34:31 2000
+@@ -0,0 +1,79 @@
++
++linux-2.4.0-test9-fore200e-0.3.tar
++----------------------------------
++
++This package updates the support of the FORE Systems 200E-series ATM
++adapters by the Linux operating system. Note that the driver itself is
++now distributed with the regular Linux kernel distribution.
++
++It is based on the earlier PCA-200E driver written by Uwe Dannowski.
++
++This device driver simultaneously supports PCA-200E and SBA-200E adapters on
++i386, alpha (untested), powerpc, sparc and sparc64 hosts.
++
++The intent is to enable the use of different models of FORE adapters at the
++same time, by servers that have several bus interfaces (such as PCI+SBUS,
++PCI+MCA or PCI+EISA).
++Only PCI and SBUS devices are currently supported by the driver, but support
++for other bus interfaces such as EISA should not be too hard to add (this may
++be more tricky for the MCA bus, though, as FORE made some MCA-specific
++modifications to the adapter's AALI interface).
++
++The driver is shipped with firmware data being uploaded to the ATM adapters
++at system boot time or at module loading time. The supplied firmware images
++should work with all adapters.
++
++However, if you encounter problems (the firmware doesn't start or the driver
++is unable to read the PROM data), you may consider trying another firmware
++version. Alternative binary firmware images can be found somewhere on the
++ForeThough CD-ROM supplied with your adapter by FORE Systems.
++
++You can also get the latest firmware images from FORE Systems at
++http://www.fore.com. Register TACTics Online and go to
++the 'software updates' pages. The firmware binaries are part of
++the various ForeThough software distributions.
++
++Notice that different versions of the PCA-200E firmware exist, depending
++on the endianess of the host architecture. The driver is shipped with
++both little and big endian PCA firmware images.
++
++Name and location of the alternative firmware images can be set at kernel
++configuration time. See the INSTALL file for details.
++
++Also note that the firmware binaries are the intellectual property
++of FORE Systems, Inc. Please read the fore200e_firmware_copyright file.
++
++
++
++Driver features summary
++-----------------------
++
++ - simultaneously supports PCA-200E and SBA-200E adapters;
++ - works on i386, powerpc, SBUS-based sparc and
++ SBUS or PCI-based sparc64 architectures;
++ - now targeted to 2.4.0-test9 kernels;
++ - uses new DVMA PCI and SBUS interfaces;
++ - useable as a removable kernel module;
++ - supports FORE pseudo-CBR rate control;
++ - the reserved CBR rate can be changed after VC setup;
++ - supports AAL0, AAL3/4 and AAL5;
++ - supports S/UNI hardware loopback modes;
++ - internal design focuses on portability and extensibility.
++
++
++Restrictions / Known bugs
++-------------------------
++
++ - only VP=0 is supported;
++ - 'insmod' coredumps when attempting to load the driver on sparc64
++ hosts (at least using the old Ultrapenguin 1.1.9 distribution);
++ - some memory resources cannot be freed on sparc, sparc64 and powerpc,
++ because the required support is still missing in 2.2 and 2.3 kernels.
++ You shouldn't try to unload the module driver on these platforms.
++
++
++Feedback
++--------
++
++Feedback is welcome. Please send success stories/bug reports/
++patches/improvement/comments/flames to <lizzi@cnam.fr>.
projects / packages / kernel.git / commitdiff