diff options
Diffstat (limited to 'drivers/net/ethernet/dec/tulip/de4x5.c')
| -rw-r--r-- | drivers/net/ethernet/dec/tulip/de4x5.c | 5591 |
1 files changed, 0 insertions, 5591 deletions
diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c deleted file mode 100644 index 71730ef4cd57..000000000000 --- a/drivers/net/ethernet/dec/tulip/de4x5.c +++ /dev/null @@ -1,5591 +0,0 @@ -/* de4x5.c: A DIGITAL DC21x4x DECchip and DE425/DE434/DE435/DE450/DE500 - ethernet driver for Linux. - - Copyright 1994, 1995 Digital Equipment Corporation. - - Testing resources for this driver have been made available - in part by NASA Ames Research Center (mjacob@nas.nasa.gov). - - The author may be reached at davies@maniac.ultranet.com. - - This program is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by the - Free Software Foundation; either version 2 of the License, or (at your - option) any later version. - - THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, Inc., - 675 Mass Ave, Cambridge, MA 02139, USA. - - Originally, this driver was written for the Digital Equipment - Corporation series of EtherWORKS ethernet cards: - - DE425 TP/COAX EISA - DE434 TP PCI - DE435 TP/COAX/AUI PCI - DE450 TP/COAX/AUI PCI - DE500 10/100 PCI Fasternet - - but it will now attempt to support all cards which conform to the - Digital Semiconductor SROM Specification. The driver currently - recognises the following chips: - - DC21040 (no SROM) - DC21041[A] - DC21140[A] - DC21142 - DC21143 - - So far the driver is known to work with the following cards: - - KINGSTON - Linksys - ZNYX342 - SMC8432 - SMC9332 (w/new SROM) - ZNYX31[45] - ZNYX346 10/100 4 port (can act as a 10/100 bridge!) - - The driver has been tested on a relatively busy network using the DE425, - DE434, DE435 and DE500 cards and benchmarked with 'ttcp': it transferred - 16M of data to a DECstation 5000/200 as follows: - - TCP UDP - TX RX TX RX - DE425 1030k 997k 1170k 1128k - DE434 1063k 995k 1170k 1125k - DE435 1063k 995k 1170k 1125k - DE500 1063k 998k 1170k 1125k in 10Mb/s mode - - All values are typical (in kBytes/sec) from a sample of 4 for each - measurement. Their error is +/-20k on a quiet (private) network and also - depend on what load the CPU has. - - ========================================================================= - This driver has been written substantially from scratch, although its - inheritance of style and stack interface from 'ewrk3.c' and in turn from - Donald Becker's 'lance.c' should be obvious. With the module autoload of - every usable DECchip board, I pinched Donald's 'next_module' field to - link my modules together. - - Up to 15 EISA cards can be supported under this driver, limited primarily - by the available IRQ lines. I have checked different configurations of - multiple depca, EtherWORKS 3 cards and de4x5 cards and have not found a - problem yet (provided you have at least depca.c v0.38) ... - - PCI support has been added to allow the driver to work with the DE434, - DE435, DE450 and DE500 cards. The I/O accesses are a bit of a kludge due - to the differences in the EISA and PCI CSR address offsets from the base - address. - - The ability to load this driver as a loadable module has been included - and used extensively during the driver development (to save those long - reboot sequences). Loadable module support under PCI and EISA has been - achieved by letting the driver autoprobe as if it were compiled into the - kernel. Do make sure you're not sharing interrupts with anything that - cannot accommodate interrupt sharing! - - To utilise this ability, you have to do 8 things: - - 0) have a copy of the loadable modules code installed on your system. - 1) copy de4x5.c from the /linux/drivers/net directory to your favourite - temporary directory. - 2) for fixed autoprobes (not recommended), edit the source code near - line 5594 to reflect the I/O address you're using, or assign these when - loading by: - - insmod de4x5 io=0xghh where g = bus number - hh = device number - - NB: autoprobing for modules is now supported by default. You may just - use: - - insmod de4x5 - - to load all available boards. For a specific board, still use - the 'io=?' above. - 3) compile de4x5.c, but include -DMODULE in the command line to ensure - that the correct bits are compiled (see end of source code). - 4) if you are wanting to add a new card, goto 5. Otherwise, recompile a - kernel with the de4x5 configuration turned off and reboot. - 5) insmod de4x5 [io=0xghh] - 6) run the net startup bits for your new eth?? interface(s) manually - (usually /etc/rc.inet[12] at boot time). - 7) enjoy! - - To unload a module, turn off the associated interface(s) - 'ifconfig eth?? down' then 'rmmod de4x5'. - - Automedia detection is included so that in principal you can disconnect - from, e.g. TP, reconnect to BNC and things will still work (after a - pause whilst the driver figures out where its media went). My tests - using ping showed that it appears to work.... - - By default, the driver will now autodetect any DECchip based card. - Should you have a need to restrict the driver to DIGITAL only cards, you - can compile with a DEC_ONLY define, or if loading as a module, use the - 'dec_only=1' parameter. - - I've changed the timing routines to use the kernel timer and scheduling - functions so that the hangs and other assorted problems that occurred - while autosensing the media should be gone. A bonus for the DC21040 - auto media sense algorithm is that it can now use one that is more in - line with the rest (the DC21040 chip doesn't have a hardware timer). - The downside is the 1 'jiffies' (10ms) resolution. - - IEEE 802.3u MII interface code has been added in anticipation that some - products may use it in the future. - - The SMC9332 card has a non-compliant SROM which needs fixing - I have - patched this driver to detect it because the SROM format used complies - to a previous DEC-STD format. - - I have removed the buffer copies needed for receive on Intels. I cannot - remove them for Alphas since the Tulip hardware only does longword - aligned DMA transfers and the Alphas get alignment traps with non - longword aligned data copies (which makes them really slow). No comment. - - I have added SROM decoding routines to make this driver work with any - card that supports the Digital Semiconductor SROM spec. This will help - all cards running the dc2114x series chips in particular. Cards using - the dc2104x chips should run correctly with the basic driver. I'm in - debt to <mjacob@feral.com> for the testing and feedback that helped get - this feature working. So far we have tested KINGSTON, SMC8432, SMC9332 - (with the latest SROM complying with the SROM spec V3: their first was - broken), ZNYX342 and LinkSys. ZYNX314 (dual 21041 MAC) and ZNYX 315 - (quad 21041 MAC) cards also appear to work despite their incorrectly - wired IRQs. - - I have added a temporary fix for interrupt problems when some SCSI cards - share the same interrupt as the DECchip based cards. The problem occurs - because the SCSI card wants to grab the interrupt as a fast interrupt - (runs the service routine with interrupts turned off) vs. this card - which really needs to run the service routine with interrupts turned on. - This driver will now add the interrupt service routine as a fast - interrupt if it is bounced from the slow interrupt. THIS IS NOT A - RECOMMENDED WAY TO RUN THE DRIVER and has been done for a limited time - until people sort out their compatibility issues and the kernel - interrupt service code is fixed. YOU SHOULD SEPARATE OUT THE FAST - INTERRUPT CARDS FROM THE SLOW INTERRUPT CARDS to ensure that they do not - run on the same interrupt. PCMCIA/CardBus is another can of worms... - - Finally, I think I have really fixed the module loading problem with - more than one DECchip based card. As a side effect, I don't mess with - the device structure any more which means that if more than 1 card in - 2.0.x is installed (4 in 2.1.x), the user will have to edit - linux/drivers/net/Space.c to make room for them. Hence, module loading - is the preferred way to use this driver, since it doesn't have this - limitation. - - Where SROM media detection is used and full duplex is specified in the - SROM, the feature is ignored unless lp->params.fdx is set at compile - time OR during a module load (insmod de4x5 args='eth??:fdx' [see - below]). This is because there is no way to automatically detect full - duplex links except through autonegotiation. When I include the - autonegotiation feature in the SROM autoconf code, this detection will - occur automatically for that case. - - Command line arguments are now allowed, similar to passing arguments - through LILO. This will allow a per adapter board set up of full duplex - and media. The only lexical constraints are: the board name (dev->name) - appears in the list before its parameters. The list of parameters ends - either at the end of the parameter list or with another board name. The - following parameters are allowed: - - fdx for full duplex - autosense to set the media/speed; with the following - sub-parameters: - TP, TP_NW, BNC, AUI, BNC_AUI, 100Mb, 10Mb, AUTO - - Case sensitivity is important for the sub-parameters. They *must* be - upper case. Examples: - - insmod de4x5 args='eth1:fdx autosense=BNC eth0:autosense=100Mb'. - - For a compiled in driver, at or above line 548, place e.g. - #define DE4X5_PARM "eth0:fdx autosense=AUI eth2:autosense=TP" - - Yes, I know full duplex isn't permissible on BNC or AUI; they're just - examples. By default, full duplex is turned off and AUTO is the default - autosense setting. In reality, I expect only the full duplex option to - be used. Note the use of single quotes in the two examples above and the - lack of commas to separate items. ALSO, you must get the requested media - correct in relation to what the adapter SROM says it has. There's no way - to determine this in advance other than by trial and error and common - sense, e.g. call a BNC connectored port 'BNC', not '10Mb'. - - Changed the bus probing. EISA used to be done first, followed by PCI. - Most people probably don't even know what a de425 is today and the EISA - probe has messed up some SCSI cards in the past, so now PCI is always - probed first followed by EISA if a) the architecture allows EISA and - either b) there have been no PCI cards detected or c) an EISA probe is - forced by the user. To force a probe include "force_eisa" in your - insmod "args" line; for built-in kernels either change the driver to do - this automatically or include #define DE4X5_FORCE_EISA on or before - line 1040 in the driver. - - TO DO: - ------ - - Revision History - ---------------- - - Version Date Description - - 0.1 17-Nov-94 Initial writing. ALPHA code release. - 0.2 13-Jan-95 Added PCI support for DE435's. - 0.21 19-Jan-95 Added auto media detection. - 0.22 10-Feb-95 Fix interrupt handler call <chris@cosy.sbg.ac.at>. - Fix recognition bug reported by <bkm@star.rl.ac.uk>. - Add request/release_region code. - Add loadable modules support for PCI. - Clean up loadable modules support. - 0.23 28-Feb-95 Added DC21041 and DC21140 support. - Fix missed frame counter value and initialisation. - Fixed EISA probe. - 0.24 11-Apr-95 Change delay routine to use <linux/udelay>. - Change TX_BUFFS_AVAIL macro. - Change media autodetection to allow manual setting. - Completed DE500 (DC21140) support. - 0.241 18-Apr-95 Interim release without DE500 Autosense Algorithm. - 0.242 10-May-95 Minor changes. - 0.30 12-Jun-95 Timer fix for DC21140. - Portability changes. - Add ALPHA changes from <jestabro@ant.tay1.dec.com>. - Add DE500 semi automatic autosense. - Add Link Fail interrupt TP failure detection. - Add timer based link change detection. - Plugged a memory leak in de4x5_queue_pkt(). - 0.31 13-Jun-95 Fixed PCI stuff for 1.3.1. - 0.32 26-Jun-95 Added verify_area() calls in de4x5_ioctl() from a - suggestion by <heiko@colossus.escape.de>. - 0.33 8-Aug-95 Add shared interrupt support (not released yet). - 0.331 21-Aug-95 Fix de4x5_open() with fast CPUs. - Fix de4x5_interrupt(). - Fix dc21140_autoconf() mess. - No shared interrupt support. - 0.332 11-Sep-95 Added MII management interface routines. - 0.40 5-Mar-96 Fix setup frame timeout <maartenb@hpkuipc.cern.ch>. - Add kernel timer code (h/w is too flaky). - Add MII based PHY autosense. - Add new multicasting code. - Add new autosense algorithms for media/mode - selection using kernel scheduling/timing. - Re-formatted. - Made changes suggested by <jeff@router.patch.net>: - Change driver to detect all DECchip based cards - with DEC_ONLY restriction a special case. - Changed driver to autoprobe as a module. No irq - checking is done now - assume BIOS is good! - Added SMC9332 detection <manabe@Roy.dsl.tutics.ac.jp> - 0.41 21-Mar-96 Don't check for get_hw_addr checksum unless DEC card - only <niles@axp745gsfc.nasa.gov> - Fix for multiple PCI cards reported by <jos@xos.nl> - Duh, put the IRQF_SHARED flag into request_interrupt(). - Fix SMC ethernet address in enet_det[]. - Print chip name instead of "UNKNOWN" during boot. - 0.42 26-Apr-96 Fix MII write TA bit error. - Fix bug in dc21040 and dc21041 autosense code. - Remove buffer copies on receive for Intels. - Change sk_buff handling during media disconnects to - eliminate DUP packets. - Add dynamic TX thresholding. - Change all chips to use perfect multicast filtering. - Fix alloc_device() bug <jari@markkus2.fimr.fi> - 0.43 21-Jun-96 Fix unconnected media TX retry bug. - Add Accton to the list of broken cards. - Fix TX under-run bug for non DC21140 chips. - Fix boot command probe bug in alloc_device() as - reported by <koen.gadeyne@barco.com> and - <orava@nether.tky.hut.fi>. - Add cache locks to prevent a race condition as - reported by <csd@microplex.com> and - <baba@beckman.uiuc.edu>. - Upgraded alloc_device() code. - 0.431 28-Jun-96 Fix potential bug in queue_pkt() from discussion - with <csd@microplex.com> - 0.44 13-Aug-96 Fix RX overflow bug in 2114[023] chips. - Fix EISA probe bugs reported by <os2@kpi.kharkov.ua> - and <michael@compurex.com>. - 0.441 9-Sep-96 Change dc21041_autoconf() to probe quiet BNC media - with a loopback packet. - 0.442 9-Sep-96 Include AUI in dc21041 media printout. Bug reported - by <bhat@mundook.cs.mu.OZ.AU> - 0.45 8-Dec-96 Include endian functions for PPC use, from work - by <cort@cs.nmt.edu> and <g.thomas@opengroup.org>. - 0.451 28-Dec-96 Added fix to allow autoprobe for modules after - suggestion from <mjacob@feral.com>. - 0.5 30-Jan-97 Added SROM decoding functions. - Updated debug flags. - Fix sleep/wakeup calls for PCI cards, bug reported - by <cross@gweep.lkg.dec.com>. - Added multi-MAC, one SROM feature from discussion - with <mjacob@feral.com>. - Added full module autoprobe capability. - Added attempt to use an SMC9332 with broken SROM. - Added fix for ZYNX multi-mac cards that didn't - get their IRQs wired correctly. - 0.51 13-Feb-97 Added endian fixes for the SROM accesses from - <paubert@iram.es> - Fix init_connection() to remove extra device reset. - Fix MAC/PHY reset ordering in dc21140m_autoconf(). - Fix initialisation problem with lp->timeout in - typeX_infoblock() from <paubert@iram.es>. - Fix MII PHY reset problem from work done by - <paubert@iram.es>. - 0.52 26-Apr-97 Some changes may not credit the right people - - a disk crash meant I lost some mail. - Change RX interrupt routine to drop rather than - defer packets to avoid hang reported by - <g.thomas@opengroup.org>. - Fix srom_exec() to return for COMPACT and type 1 - infoblocks. - Added DC21142 and DC21143 functions. - Added byte counters from <phil@tazenda.demon.co.uk> - Added IRQF_DISABLED temporary fix from - <mjacob@feral.com>. - 0.53 12-Nov-97 Fix the *_probe() to include 'eth??' name during - module load: bug reported by - <Piete.Brooks@cl.cam.ac.uk> - Fix multi-MAC, one SROM, to work with 2114x chips: - bug reported by <cmetz@inner.net>. - Make above search independent of BIOS device scan - direction. - Completed DC2114[23] autosense functions. - 0.531 21-Dec-97 Fix DE500-XA 100Mb/s bug reported by - <robin@intercore.com - Fix type1_infoblock() bug introduced in 0.53, from - problem reports by - <parmee@postecss.ncrfran.france.ncr.com> and - <jo@ice.dillingen.baynet.de>. - Added argument list to set up each board from either - a module's command line or a compiled in #define. - Added generic MII PHY functionality to deal with - newer PHY chips. - Fix the mess in 2.1.67. - 0.532 5-Jan-98 Fix bug in mii_get_phy() reported by - <redhat@cococo.net>. - Fix bug in pci_probe() for 64 bit systems reported - by <belliott@accessone.com>. - 0.533 9-Jan-98 Fix more 64 bit bugs reported by <jal@cs.brown.edu>. - 0.534 24-Jan-98 Fix last (?) endian bug from <geert@linux-m68k.org> - 0.535 21-Feb-98 Fix Ethernet Address PROM reset bug for DC21040. - 0.536 21-Mar-98 Change pci_probe() to use the pci_dev structure. - **Incompatible with 2.0.x from here.** - 0.540 5-Jul-98 Atomicize assertion of dev->interrupt for SMP - from <lma@varesearch.com> - Add TP, AUI and BNC cases to 21140m_autoconf() for - case where a 21140 under SROM control uses, e.g. AUI - from problem report by <delchini@lpnp09.in2p3.fr> - Add MII parallel detection to 2114x_autoconf() for - case where no autonegotiation partner exists from - problem report by <mlapsley@ndirect.co.uk>. - Add ability to force connection type directly even - when using SROM control from problem report by - <earl@exis.net>. - Updated the PCI interface to conform with the latest - version. I hope nothing is broken... - Add TX done interrupt modification from suggestion - by <Austin.Donnelly@cl.cam.ac.uk>. - Fix is_anc_capable() bug reported by - <Austin.Donnelly@cl.cam.ac.uk>. - Fix type[13]_infoblock() bug: during MII search, PHY - lp->rst not run because lp->ibn not initialised - - from report & fix by <paubert@iram.es>. - Fix probe bug with EISA & PCI cards present from - report by <eirik@netcom.com>. - 0.541 24-Aug-98 Fix compiler problems associated with i386-string - ops from multiple bug reports and temporary fix - from <paubert@iram.es>. - Fix pci_probe() to correctly emulate the old - pcibios_find_class() function. - Add an_exception() for old ZYNX346 and fix compile - warning on PPC & SPARC, from <ecd@skynet.be>. - Fix lastPCI to correctly work with compiled in - kernels and modules from bug report by - <Zlatko.Calusic@CARNet.hr> et al. - 0.542 15-Sep-98 Fix dc2114x_autoconf() to stop multiple messages - when media is unconnected. - Change dev->interrupt to lp->interrupt to ensure - alignment for Alpha's and avoid their unaligned - access traps. This flag is merely for log messages: - should do something more definitive though... - 0.543 30-Dec-98 Add SMP spin locking. - 0.544 8-May-99 Fix for buggy SROM in Motorola embedded boards using - a 21143 by <mmporter@home.com>. - Change PCI/EISA bus probing order. - 0.545 28-Nov-99 Further Moto SROM bug fix from - <mporter@eng.mcd.mot.com> - Remove double checking for DEBUG_RX in de4x5_dbg_rx() - from report by <geert@linux-m68k.org> - 0.546 22-Feb-01 Fixes Alpha XP1000 oops. The srom_search function - was causing a page fault when initializing the - variable 'pb', on a non de4x5 PCI device, in this - case a PCI bridge (DEC chip 21152). The value of - 'pb' is now only initialized if a de4x5 chip is - present. - <france@handhelds.org> - 0.547 08-Nov-01 Use library crc32 functions by <Matt_Domsch@dell.com> - 0.548 30-Aug-03 Big 2.6 cleanup. Ported to PCI/EISA probing and - generic DMA APIs. Fixed DE425 support on Alpha. - <maz@wild-wind.fr.eu.org> - ========================================================================= -*/ - -#include <linux/compat.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/interrupt.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/pci.h> -#include <linux/eisa.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/crc32.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/time.h> -#include <linux/types.h> -#include <linux/unistd.h> -#include <linux/ctype.h> -#include <linux/dma-mapping.h> -#include <linux/moduleparam.h> -#include <linux/bitops.h> -#include <linux/gfp.h> - -#include <asm/io.h> -#include <asm/dma.h> -#include <asm/byteorder.h> -#include <asm/unaligned.h> -#include <linux/uaccess.h> -#ifdef CONFIG_PPC_PMAC -#include <asm/machdep.h> -#endif /* CONFIG_PPC_PMAC */ - -#include "de4x5.h" - -static const char version[] = - KERN_INFO "de4x5.c:V0.546 2001/02/22 davies@maniac.ultranet.com\n"; - -#define c_char const char - -/* -** MII Information -*/ -struct phy_table { - int reset; /* Hard reset required? */ - int id; /* IEEE OUI */ - int ta; /* One cycle TA time - 802.3u is confusing here */ - struct { /* Non autonegotiation (parallel) speed det. */ - int reg; - int mask; - int value; - } spd; -}; - -struct mii_phy { - int reset; /* Hard reset required? */ - int id; /* IEEE OUI */ - int ta; /* One cycle TA time */ - struct { /* Non autonegotiation (parallel) speed det. */ - int reg; - int mask; - int value; - } spd; - int addr; /* MII address for the PHY */ - u_char *gep; /* Start of GEP sequence block in SROM */ - u_char *rst; /* Start of reset sequence in SROM */ - u_int mc; /* Media Capabilities */ - u_int ana; /* NWay Advertisement */ - u_int fdx; /* Full DupleX capabilities for each media */ - u_int ttm; /* Transmit Threshold Mode for each media */ - u_int mci; /* 21142 MII Connector Interrupt info */ -}; - -#define DE4X5_MAX_PHY 8 /* Allow up to 8 attached PHY devices per board */ - -struct sia_phy { - u_char mc; /* Media Code */ - u_char ext; /* csr13-15 valid when set */ - int csr13; /* SIA Connectivity Register */ - int csr14; /* SIA TX/RX Register */ - int csr15; /* SIA General Register */ - int gepc; /* SIA GEP Control Information */ - int gep; /* SIA GEP Data */ -}; - -/* -** Define the know universe of PHY devices that can be -** recognised by this driver. -*/ -static struct phy_table phy_info[] = { - {0, NATIONAL_TX, 1, {0x19, 0x40, 0x00}}, /* National TX */ - {1, BROADCOM_T4, 1, {0x10, 0x02, 0x02}}, /* Broadcom T4 */ - {0, SEEQ_T4 , 1, {0x12, 0x10, 0x10}}, /* SEEQ T4 */ - {0, CYPRESS_T4 , 1, {0x05, 0x20, 0x20}}, /* Cypress T4 */ - {0, 0x7810 , 1, {0x14, 0x0800, 0x0800}} /* Level One LTX970 */ -}; - -/* -** These GENERIC values assumes that the PHY devices follow 802.3u and -** allow parallel detection to set the link partner ability register. -** Detection of 100Base-TX [H/F Duplex] and 100Base-T4 is supported. -*/ -#define GENERIC_REG 0x05 /* Autoneg. Link Partner Advertisement Reg. */ -#define GENERIC_MASK MII_ANLPA_100M /* All 100Mb/s Technologies */ -#define GENERIC_VALUE MII_ANLPA_100M /* 100B-TX, 100B-TX FDX, 100B-T4 */ - -/* -** Define special SROM detection cases -*/ -static c_char enet_det[][ETH_ALEN] = { - {0x00, 0x00, 0xc0, 0x00, 0x00, 0x00}, - {0x00, 0x00, 0xe8, 0x00, 0x00, 0x00} -}; - -#define SMC 1 -#define ACCTON 2 - -/* -** SROM Repair definitions. If a broken SROM is detected a card may -** use this information to help figure out what to do. This is a -** "stab in the dark" and so far for SMC9332's only. -*/ -static c_char srom_repair_info[][100] = { - {0x00,0x1e,0x00,0x00,0x00,0x08, /* SMC9332 */ - 0x1f,0x01,0x8f,0x01,0x00,0x01,0x00,0x02, - 0x01,0x00,0x00,0x78,0xe0,0x01,0x00,0x50, - 0x00,0x18,} -}; - - -#ifdef DE4X5_DEBUG -static int de4x5_debug = DE4X5_DEBUG; -#else -/*static int de4x5_debug = (DEBUG_MII | DEBUG_SROM | DEBUG_PCICFG | DEBUG_MEDIA | DEBUG_VERSION);*/ -static int de4x5_debug = (DEBUG_MEDIA | DEBUG_VERSION); -#endif - -/* -** Allow per adapter set up. For modules this is simply a command line -** parameter, e.g.: -** insmod de4x5 args='eth1:fdx autosense=BNC eth0:autosense=100Mb'. -** -** For a compiled in driver, place e.g. -** #define DE4X5_PARM "eth0:fdx autosense=AUI eth2:autosense=TP" -** here -*/ -#ifdef DE4X5_PARM -static char *args = DE4X5_PARM; -#else -static char *args; -#endif - -struct parameters { - bool fdx; - int autosense; -}; - -#define DE4X5_AUTOSENSE_MS 250 /* msec autosense tick (DE500) */ - -#define DE4X5_NDA 0xffe0 /* No Device (I/O) Address */ - -/* -** Ethernet PROM defines -*/ -#define PROBE_LENGTH 32 -#define ETH_PROM_SIG 0xAA5500FFUL - -/* -** Ethernet Info -*/ -#define PKT_BUF_SZ 1536 /* Buffer size for each Tx/Rx buffer */ -#define IEEE802_3_SZ 1518 /* Packet + CRC */ -#define MAX_PKT_SZ 1514 /* Maximum ethernet packet length */ -#define MAX_DAT_SZ 1500 /* Maximum ethernet data length */ -#define MIN_DAT_SZ 1 /* Minimum ethernet data length */ -#define PKT_HDR_LEN 14 /* Addresses and data length info */ -#define FAKE_FRAME_LEN (MAX_PKT_SZ + 1) -#define QUEUE_PKT_TIMEOUT (3*HZ) /* 3 second timeout */ - - -/* -** EISA bus defines -*/ -#define DE4X5_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */ -#define DE4X5_EISA_TOTAL_SIZE 0x100 /* I/O address extent */ - -#define EISA_ALLOWED_IRQ_LIST {5, 9, 10, 11} - -#define DE4X5_SIGNATURE {"DE425","DE434","DE435","DE450","DE500"} -#define DE4X5_NAME_LENGTH 8 - -static c_char *de4x5_signatures[] = DE4X5_SIGNATURE; - -/* -** Ethernet PROM defines for DC21040 -*/ -#define PROBE_LENGTH 32 -#define ETH_PROM_SIG 0xAA5500FFUL - -/* -** PCI Bus defines -*/ -#define PCI_MAX_BUS_NUM 8 -#define DE4X5_PCI_TOTAL_SIZE 0x80 /* I/O address extent */ -#define DE4X5_CLASS_CODE 0x00020000 /* Network controller, Ethernet */ - -/* -** Memory Alignment. Each descriptor is 4 longwords long. To force a -** particular alignment on the TX descriptor, adjust DESC_SKIP_LEN and -** DESC_ALIGN. ALIGN aligns the start address of the private memory area -** and hence the RX descriptor ring's first entry. -*/ -#define DE4X5_ALIGN4 ((u_long)4 - 1) /* 1 longword align */ -#define DE4X5_ALIGN8 ((u_long)8 - 1) /* 2 longword align */ -#define DE4X5_ALIGN16 ((u_long)16 - 1) /* 4 longword align */ -#define DE4X5_ALIGN32 ((u_long)32 - 1) /* 8 longword align */ -#define DE4X5_ALIGN64 ((u_long)64 - 1) /* 16 longword align */ -#define DE4X5_ALIGN128 ((u_long)128 - 1) /* 32 longword align */ - -#define DE4X5_ALIGN DE4X5_ALIGN32 /* Keep the DC21040 happy... */ -#define DE4X5_CACHE_ALIGN CAL_16LONG -#define DESC_SKIP_LEN DSL_0 /* Must agree with DESC_ALIGN */ -/*#define DESC_ALIGN u32 dummy[4]; / * Must agree with DESC_SKIP_LEN */ -#define DESC_ALIGN - -#ifndef DEC_ONLY /* See README.de4x5 for using this */ -static int dec_only; -#else -static int dec_only = 1; -#endif - -/* -** DE4X5 IRQ ENABLE/DISABLE -*/ -#define ENABLE_IRQs { \ - imr |= lp->irq_en;\ - outl(imr, DE4X5_IMR); /* Enable the IRQs */\ -} - -#define DISABLE_IRQs {\ - imr = inl(DE4X5_IMR);\ - imr &= ~lp->irq_en;\ - outl(imr, DE4X5_IMR); /* Disable the IRQs */\ -} - -#define UNMASK_IRQs {\ - imr |= lp->irq_mask;\ - outl(imr, DE4X5_IMR); /* Unmask the IRQs */\ -} - -#define MASK_IRQs {\ - imr = inl(DE4X5_IMR);\ - imr &= ~lp->irq_mask;\ - outl(imr, DE4X5_IMR); /* Mask the IRQs */\ -} - -/* -** DE4X5 START/STOP -*/ -#define START_DE4X5 {\ - omr = inl(DE4X5_OMR);\ - omr |= OMR_ST | OMR_SR;\ - outl(omr, DE4X5_OMR); /* Enable the TX and/or RX */\ -} - -#define STOP_DE4X5 {\ - omr = inl(DE4X5_OMR);\ - omr &= ~(OMR_ST|OMR_SR);\ - outl(omr, DE4X5_OMR); /* Disable the TX and/or RX */ \ -} - -/* -** DE4X5 SIA RESET -*/ -#define RESET_SIA outl(0, DE4X5_SICR); /* Reset SIA connectivity regs */ - -/* -** DE500 AUTOSENSE TIMER INTERVAL (MILLISECS) -*/ -#define DE4X5_AUTOSENSE_MS 250 - -/* -** SROM Structure -*/ -struct de4x5_srom { - char sub_vendor_id[2]; - char sub_system_id[2]; - char reserved[12]; - char id_block_crc; - char reserved2; - char version; - char num_controllers; - char ieee_addr[6]; - char info[100]; - short chksum; -}; -#define SUB_VENDOR_ID 0x500a - -/* -** DE4X5 Descriptors. Make sure that all the RX buffers are contiguous -** and have sizes of both a power of 2 and a multiple of 4. -** A size of 256 bytes for each buffer could be chosen because over 90% of -** all packets in our network are <256 bytes long and 64 longword alignment -** is possible. 1536 showed better 'ttcp' performance. Take your pick. 32 TX -** descriptors are needed for machines with an ALPHA CPU. -*/ -#define NUM_RX_DESC 8 /* Number of RX descriptors */ -#define NUM_TX_DESC 32 /* Number of TX descriptors */ -#define RX_BUFF_SZ 1536 /* Power of 2 for kmalloc and */ - /* Multiple of 4 for DC21040 */ - /* Allows 512 byte alignment */ -struct de4x5_desc { - volatile __le32 status; - __le32 des1; - __le32 buf; - __le32 next; - DESC_ALIGN -}; - -/* -** The DE4X5 private structure -*/ -#define DE4X5_PKT_STAT_SZ 16 -#define DE4X5_PKT_BIN_SZ 128 /* Should be >=100 unless you - increase DE4X5_PKT_STAT_SZ */ - -struct pkt_stats { - u_int bins[DE4X5_PKT_STAT_SZ]; /* Private stats counters */ - u_int unicast; - u_int multicast; - u_int broadcast; - u_int excessive_collisions; - u_int tx_underruns; - u_int excessive_underruns; - u_int rx_runt_frames; - u_int rx_collision; - u_int rx_dribble; - u_int rx_overflow; -}; - -struct de4x5_private { - char adapter_name[80]; /* Adapter name */ - u_long interrupt; /* Aligned ISR flag */ - struct de4x5_desc *rx_ring; /* RX descriptor ring */ - struct de4x5_desc *tx_ring; /* TX descriptor ring */ - struct sk_buff *tx_skb[NUM_TX_DESC]; /* TX skb for freeing when sent */ - struct sk_buff *rx_skb[NUM_RX_DESC]; /* RX skb's */ - int rx_new, rx_old; /* RX descriptor ring pointers */ - int tx_new, tx_old; /* TX descriptor ring pointers */ - char setup_frame[SETUP_FRAME_LEN]; /* Holds MCA and PA info. */ - char frame[64]; /* Min sized packet for loopback*/ - spinlock_t lock; /* Adapter specific spinlock */ - struct net_device_stats stats; /* Public stats */ - struct pkt_stats pktStats; /* Private stats counters */ - char rxRingSize; - char txRingSize; - int bus; /* EISA or PCI */ - int bus_num; /* PCI Bus number */ - int device; /* Device number on PCI bus */ - int state; /* Adapter OPENED or CLOSED */ - int chipset; /* DC21040, DC21041 or DC21140 */ - s32 irq_mask; /* Interrupt Mask (Enable) bits */ - s32 irq_en; /* Summary interrupt bits */ - int media; /* Media (eg TP), mode (eg 100B)*/ - int c_media; /* Remember the last media conn */ - bool fdx; /* media full duplex flag */ - int linkOK; /* Link is OK */ - int autosense; /* Allow/disallow autosensing */ - bool tx_enable; /* Enable descriptor polling */ - int setup_f; /* Setup frame filtering type */ - int local_state; /* State within a 'media' state */ - struct mii_phy phy[DE4X5_MAX_PHY]; /* List of attached PHY devices */ - struct sia_phy sia; /* SIA PHY Information */ - int active; /* Index to active PHY device */ - int mii_cnt; /* Number of attached PHY's */ - int timeout; /* Scheduling counter */ - struct timer_list timer; /* Timer info for kernel */ - int tmp; /* Temporary global per card */ - struct { - u_long lock; /* Lock the cache accesses */ - s32 csr0; /* Saved Bus Mode Register */ - s32 csr6; /* Saved Operating Mode Reg. */ - s32 csr7; /* Saved IRQ Mask Register */ - s32 gep; /* Saved General Purpose Reg. */ - s32 gepc; /* Control info for GEP */ - s32 csr13; /* Saved SIA Connectivity Reg. */ - s32 csr14; /* Saved SIA TX/RX Register */ - s32 csr15; /* Saved SIA General Register */ - int save_cnt; /* Flag if state already saved */ - struct sk_buff_head queue; /* Save the (re-ordered) skb's */ - } cache; - struct de4x5_srom srom; /* A copy of the SROM */ - int cfrv; /* Card CFRV copy */ - int rx_ovf; /* Check for 'RX overflow' tag */ - bool useSROM; /* For non-DEC card use SROM */ - bool useMII; /* Infoblock using the MII */ - int asBitValid; /* Autosense bits in GEP? */ - int asPolarity; /* 0 => asserted high */ - int asBit; /* Autosense bit number in GEP */ - int defMedium; /* SROM default medium */ - int tcount; /* Last infoblock number */ - int infoblock_init; /* Initialised this infoblock? */ - int infoleaf_offset; /* SROM infoleaf for controller */ - s32 infoblock_csr6; /* csr6 value in SROM infoblock */ - int infoblock_media; /* infoblock media */ - int (*infoleaf_fn)(struct net_device *); /* Pointer to infoleaf function */ - u_char *rst; /* Pointer to Type 5 reset info */ - u_char ibn; /* Infoblock number */ - struct parameters params; /* Command line/ #defined params */ - struct device *gendev; /* Generic device */ - dma_addr_t dma_rings; /* DMA handle for rings */ - int dma_size; /* Size of the DMA area */ - char *rx_bufs; /* rx bufs on alpha, sparc, ... */ -}; - -/* -** To get around certain poxy cards that don't provide an SROM -** for the second and more DECchip, I have to key off the first -** chip's address. I'll assume there's not a bad SROM iff: -** -** o the chipset is the same -** o the bus number is the same and > 0 -** o the sum of all the returned hw address bytes is 0 or 0x5fa -** -** Also have to save the irq for those cards whose hardware designers -** can't follow the PCI to PCI Bridge Architecture spec. -*/ -static struct { - int chipset; - int bus; - int irq; - u_char addr[ETH_ALEN]; -} last = {0,}; - -/* -** The transmit ring full condition is described by the tx_old and tx_new -** pointers by: -** tx_old = tx_new Empty ring -** tx_old = tx_new+1 Full ring -** tx_old+txRingSize = tx_new+1 Full ring (wrapped condition) -*/ -#define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\ - lp->tx_old+lp->txRingSize-lp->tx_new-1:\ - lp->tx_old -lp->tx_new-1) - -#define TX_PKT_PENDING (lp->tx_old != lp->tx_new) - -/* -** Public Functions -*/ -static int de4x5_open(struct net_device *dev); -static netdev_tx_t de4x5_queue_pkt(struct sk_buff *skb, - struct net_device *dev); -static irqreturn_t de4x5_interrupt(int irq, void *dev_id); -static int de4x5_close(struct net_device *dev); -static struct net_device_stats *de4x5_get_stats(struct net_device *dev); -static void de4x5_local_stats(struct net_device *dev, char *buf, int pkt_len); -static void set_multicast_list(struct net_device *dev); -static int de4x5_siocdevprivate(struct net_device *dev, struct ifreq *rq, - void __user *data, int cmd); - -/* -** Private functions -*/ -static int de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev); -static int de4x5_init(struct net_device *dev); -static int de4x5_sw_reset(struct net_device *dev); -static int de4x5_rx(struct net_device *dev); -static int de4x5_tx(struct net_device *dev); -static void de4x5_ast(struct timer_list *t); -static int de4x5_txur(struct net_device *dev); -static int de4x5_rx_ovfc(struct net_device *dev); - -static int autoconf_media(struct net_device *dev); -static void create_packet(struct net_device *dev, char *frame, int len); -static void load_packet(struct net_device *dev, char *buf, u32 flags, struct sk_buff *skb); -static int dc21040_autoconf(struct net_device *dev); -static int dc21041_autoconf(struct net_device *dev); -static int dc21140m_autoconf(struct net_device *dev); -static int dc2114x_autoconf(struct net_device *dev); -static int srom_autoconf(struct net_device *dev); -static int de4x5_suspect_state(struct net_device *dev, int timeout, int prev_state, int (*fn)(struct net_device *, int), int (*asfn)(struct net_device *)); -static int dc21040_state(struct net_device *dev, int csr13, int csr14, int csr15, int timeout, int next_state, int suspect_state, int (*fn)(struct net_device *, int)); -static int test_media(struct net_device *dev, s32 irqs, s32 irq_mask, s32 csr13, s32 csr14, s32 csr15, s32 msec); -static int test_for_100Mb(struct net_device *dev, int msec); -static int wait_for_link(struct net_device *dev); -static int test_mii_reg(struct net_device *dev, int reg, int mask, bool pol, long msec); -static int is_spd_100(struct net_device *dev); -static int is_100_up(struct net_device *dev); -static int is_10_up(struct net_device *dev); -static int is_anc_capable(struct net_device *dev); -static int ping_media(struct net_device *dev, int msec); -static struct sk_buff *de4x5_alloc_rx_buff(struct net_device *dev, int index, int len); -static void de4x5_free_rx_buffs(struct net_device *dev); -static void de4x5_free_tx_buffs(struct net_device *dev); -static void de4x5_save_skbs(struct net_device *dev); -static void de4x5_rst_desc_ring(struct net_device *dev); -static void de4x5_cache_state(struct net_device *dev, int flag); -static void de4x5_put_cache(struct net_device *dev, struct sk_buff *skb); -static void de4x5_putb_cache(struct net_device *dev, struct sk_buff *skb); -static struct sk_buff *de4x5_get_cache(struct net_device *dev); -static void de4x5_setup_intr(struct net_device *dev); -static void de4x5_init_connection(struct net_device *dev); -static int de4x5_reset_phy(struct net_device *dev); -static void reset_init_sia(struct net_device *dev, s32 sicr, s32 strr, s32 sigr); -static int test_ans(struct net_device *dev, s32 irqs, s32 irq_mask, s32 msec); -static int test_tp(struct net_device *dev, s32 msec); -static int EISA_signature(char *name, struct device *device); -static void PCI_signature(char *name, struct de4x5_private *lp); -static void DevicePresent(struct net_device *dev, u_long iobase); -static void enet_addr_rst(u_long aprom_addr); -static int de4x5_bad_srom(struct de4x5_private *lp); -static short srom_rd(u_long address, u_char offset); -static void srom_latch(u_int command, u_long address); -static void srom_command(u_int command, u_long address); -static void srom_address(u_int command, u_long address, u_char offset); -static short srom_data(u_int command, u_long address); -/*static void srom_busy(u_int command, u_long address);*/ -static void sendto_srom(u_int command, u_long addr); -static int getfrom_srom(u_long addr); -static int srom_map_media(struct net_device *dev); -static int srom_infoleaf_info(struct net_device *dev); -static void srom_init(struct net_device *dev); -static void srom_exec(struct net_device *dev, u_char *p); -static int mii_rd(u_char phyreg, u_char phyaddr, u_long ioaddr); -static void mii_wr(int data, u_char phyreg, u_char phyaddr, u_long ioaddr); -static int mii_rdata(u_long ioaddr); -static void mii_wdata(int data, int len, u_long ioaddr); -static void mii_ta(u_long rw, u_long ioaddr); -static int mii_swap(int data, int len); -static void mii_address(u_char addr, u_long ioaddr); -static void sendto_mii(u32 command, int data, u_long ioaddr); -static int getfrom_mii(u32 command, u_long ioaddr); -static int mii_get_oui(u_char phyaddr, u_long ioaddr); -static int mii_get_phy(struct net_device *dev); -static void SetMulticastFilter(struct net_device *dev); -static int get_hw_addr(struct net_device *dev); -static void srom_repair(struct net_device *dev, int card); -static int test_bad_enet(struct net_device *dev, int status); -static int an_exception(struct de4x5_private *lp); -static char *build_setup_frame(struct net_device *dev, int mode); -static void disable_ast(struct net_device *dev); -static long de4x5_switch_mac_port(struct net_device *dev); -static int gep_rd(struct net_device *dev); -static void gep_wr(s32 data, struct net_device *dev); -static void yawn(struct net_device *dev, int state); -static void de4x5_parse_params(struct net_device *dev); -static void de4x5_dbg_open(struct net_device *dev); -static void de4x5_dbg_mii(struct net_device *dev, int k); -static void de4x5_dbg_media(struct net_device *dev); -static void de4x5_dbg_srom(struct de4x5_srom *p); -static void de4x5_dbg_rx(struct sk_buff *skb, int len); -static int dc21041_infoleaf(struct net_device *dev); -static int dc21140_infoleaf(struct net_device *dev); -static int dc21142_infoleaf(struct net_device *dev); -static int dc21143_infoleaf(struct net_device *dev); -static int type0_infoblock(struct net_device *dev, u_char count, u_char *p); -static int type1_infoblock(struct net_device *dev, u_char count, u_char *p); -static int type2_infoblock(struct net_device *dev, u_char count, u_char *p); -static int type3_infoblock(struct net_device *dev, u_char count, u_char *p); -static int type4_infoblock(struct net_device *dev, u_char count, u_char *p); -static int type5_infoblock(struct net_device *dev, u_char count, u_char *p); -static int compact_infoblock(struct net_device *dev, u_char count, u_char *p); - -/* -** Note now that module autoprobing is allowed under EISA and PCI. The -** IRQ lines will not be auto-detected; instead I'll rely on the BIOSes -** to "do the right thing". -*/ - -static int io=0x0;/* EDIT THIS LINE FOR YOUR CONFIGURATION IF NEEDED */ - -module_param_hw(io, int, ioport, 0); -module_param(de4x5_debug, int, 0); -module_param(dec_only, int, 0); -module_param(args, charp, 0); - -MODULE_PARM_DESC(io, "de4x5 I/O base address"); -MODULE_PARM_DESC(de4x5_debug, "de4x5 debug mask"); -MODULE_PARM_DESC(dec_only, "de4x5 probe only for Digital boards (0-1)"); -MODULE_PARM_DESC(args, "de4x5 full duplex and media type settings; see de4x5.c for details"); -MODULE_LICENSE("GPL"); - -/* -** List the SROM infoleaf functions and chipsets -*/ -struct InfoLeaf { - int chipset; - int (*fn)(struct net_device *); -}; -static struct InfoLeaf infoleaf_array[] = { - {DC21041, dc21041_infoleaf}, - {DC21140, dc21140_infoleaf}, - {DC21142, dc21142_infoleaf}, - {DC21143, dc21143_infoleaf} -}; -#define INFOLEAF_SIZE ARRAY_SIZE(infoleaf_array) - -/* -** List the SROM info block functions -*/ -static int (*dc_infoblock[])(struct net_device *dev, u_char, u_char *) = { - type0_infoblock, - type1_infoblock, - type2_infoblock, - type3_infoblock, - type4_infoblock, - type5_infoblock, - compact_infoblock -}; - -#define COMPACT (ARRAY_SIZE(dc_infoblock) - 1) - -/* -** Miscellaneous defines... -*/ -#define RESET_DE4X5 {\ - int i;\ - i=inl(DE4X5_BMR);\ - mdelay(1);\ - outl(i | BMR_SWR, DE4X5_BMR);\ - mdelay(1);\ - outl(i, DE4X5_BMR);\ - mdelay(1);\ - for (i=0;i<5;i++) {inl(DE4X5_BMR); mdelay(1);}\ - mdelay(1);\ -} - -#define PHY_HARD_RESET {\ - outl(GEP_HRST, DE4X5_GEP); /* Hard RESET the PHY dev. */\ - mdelay(1); /* Assert for 1ms */\ - outl(0x00, DE4X5_GEP);\ - mdelay(2); /* Wait for 2ms */\ -} - -static const struct net_device_ops de4x5_netdev_ops = { - .ndo_open = de4x5_open, - .ndo_stop = de4x5_close, - .ndo_start_xmit = de4x5_queue_pkt, - .ndo_get_stats = de4x5_get_stats, - .ndo_set_rx_mode = set_multicast_list, - .ndo_siocdevprivate = de4x5_siocdevprivate, - .ndo_set_mac_address= eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - - -static int -de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev) -{ - char name[DE4X5_NAME_LENGTH + 1]; - struct de4x5_private *lp = netdev_priv(dev); - struct pci_dev *pdev = NULL; - int i, status=0; - - dev_set_drvdata(gendev, dev); - - /* Ensure we're not sleeping */ - if (lp->bus == EISA) { - outb(WAKEUP, PCI_CFPM); - } else { - pdev = to_pci_dev (gendev); - pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP); - } - mdelay(10); - - RESET_DE4X5; - - if ((inl(DE4X5_STS) & (STS_TS | STS_RS)) != 0) { - return -ENXIO; /* Hardware could not reset */ - } - - /* - ** Now find out what kind of DC21040/DC21041/DC21140 board we have. - */ - lp->useSROM = false; - if (lp->bus == PCI) { - PCI_signature(name, lp); - } else { - EISA_signature(name, gendev); - } - - if (*name == '\0') { /* Not found a board signature */ - return -ENXIO; - } - - dev->base_addr = iobase; - printk ("%s: %s at 0x%04lx", dev_name(gendev), name, iobase); - - status = get_hw_addr(dev); - printk(", h/w address %pM\n", dev->dev_addr); - - if (status != 0) { - printk(" which has an Ethernet PROM CRC error.\n"); - return -ENXIO; - } else { - skb_queue_head_init(&lp->cache.queue); - lp->cache.gepc = GEP_INIT; - lp->asBit = GEP_SLNK; - lp->asPolarity = GEP_SLNK; - lp->asBitValid = ~0; - lp->timeout = -1; - lp->gendev = gendev; - spin_lock_init(&lp->lock); - timer_setup(&lp->timer, de4x5_ast, 0); - de4x5_parse_params(dev); - - /* - ** Choose correct autosensing in case someone messed up - */ - lp->autosense = lp->params.autosense; - if (lp->chipset != DC21140) { - if ((lp->chipset==DC21040) && (lp->params.autosense&TP_NW)) { - lp->params.autosense = TP; - } - if ((lp->chipset==DC21041) && (lp->params.autosense&BNC_AUI)) { - lp->params.autosense = BNC; - } - } - lp->fdx = lp->params.fdx; - sprintf(lp->adapter_name,"%s (%s)", name, dev_name(gendev)); - - lp->dma_size = (NUM_RX_DESC + NUM_TX_DESC) * sizeof(struct de4x5_desc); -#if defined(__alpha__) || defined(__powerpc__) || defined(CONFIG_SPARC) || defined(DE4X5_DO_MEMCPY) - lp->dma_size += RX_BUFF_SZ * NUM_RX_DESC + DE4X5_ALIGN; -#endif - lp->rx_ring = dma_alloc_coherent(gendev, lp->dma_size, - &lp->dma_rings, GFP_ATOMIC); - if (lp->rx_ring == NULL) { - return -ENOMEM; - } - - lp->tx_ring = lp->rx_ring + NUM_RX_DESC; - - /* - ** Set up the RX descriptor ring (Intels) - ** Allocate contiguous receive buffers, long word aligned (Alphas) - */ -#if !defined(__alpha__) && !defined(__powerpc__) && !defined(CONFIG_SPARC) && !defined(DE4X5_DO_MEMCPY) - for (i=0; i<NUM_RX_DESC; i++) { - lp->rx_ring[i].status = 0; - lp->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ); - lp->rx_ring[i].buf = 0; - lp->rx_ring[i].next = 0; - lp->rx_skb[i] = (struct sk_buff *) 1; /* Dummy entry */ - } - -#else - { - dma_addr_t dma_rx_bufs; - - dma_rx_bufs = lp->dma_rings + (NUM_RX_DESC + NUM_TX_DESC) - * sizeof(struct de4x5_desc); - dma_rx_bufs = (dma_rx_bufs + DE4X5_ALIGN) & ~DE4X5_ALIGN; - lp->rx_bufs = (char *)(((long)(lp->rx_ring + NUM_RX_DESC - + NUM_TX_DESC) + DE4X5_ALIGN) & ~DE4X5_ALIGN); - for (i=0; i<NUM_RX_DESC; i++) { - lp->rx_ring[i].status = 0; - lp->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ); - lp->rx_ring[i].buf = - cpu_to_le32(dma_rx_bufs+i*RX_BUFF_SZ); - lp->rx_ring[i].next = 0; - lp->rx_skb[i] = (struct sk_buff *) 1; /* Dummy entry */ - } - - } -#endif - - barrier(); - - lp->rxRingSize = NUM_RX_DESC; - lp->txRingSize = NUM_TX_DESC; - - /* Write the end of list marker to the descriptor lists */ - lp->rx_ring[lp->rxRingSize - 1].des1 |= cpu_to_le32(RD_RER); - lp->tx_ring[lp->txRingSize - 1].des1 |= cpu_to_le32(TD_TER); - - /* Tell the adapter where the TX/RX rings are located. */ - outl(lp->dma_rings, DE4X5_RRBA); - outl(lp->dma_rings + NUM_RX_DESC * sizeof(struct de4x5_desc), - DE4X5_TRBA); - - /* Initialise the IRQ mask and Enable/Disable */ - lp->irq_mask = IMR_RIM | IMR_TIM | IMR_TUM | IMR_UNM; - lp->irq_en = IMR_NIM | IMR_AIM; - - /* Create a loopback packet frame for later media probing */ - create_packet(dev, lp->frame, sizeof(lp->frame)); - - /* Check if the RX overflow bug needs testing for */ - i = lp->cfrv & 0x000000fe; - if ((lp->chipset == DC21140) && (i == 0x20)) { - lp->rx_ovf = 1; - } - - /* Initialise the SROM pointers if possible */ - if (lp->useSROM) { - lp->state = INITIALISED; - if (srom_infoleaf_info(dev)) { - dma_free_coherent (gendev, lp->dma_size, - lp->rx_ring, lp->dma_rings); - return -ENXIO; - } - srom_init(dev); - } - - lp->state = CLOSED; - - /* - ** Check for an MII interface - */ - if ((lp->chipset != DC21040) && (lp->chipset != DC21041)) { - mii_get_phy(dev); - } - - printk(" and requires IRQ%d (provided by %s).\n", dev->irq, - ((lp->bus == PCI) ? "PCI BIOS" : "EISA CNFG")); - } - - if (de4x5_debug & DEBUG_VERSION) { - printk(version); - } - - /* The DE4X5-specific entries in the device structure. */ - SET_NETDEV_DEV(dev, gendev); - dev->netdev_ops = &de4x5_netdev_ops; - dev->mem_start = 0; - - /* Fill in the generic fields of the device structure. */ - if ((status = register_netdev (dev))) { - dma_free_coherent (gendev, lp->dma_size, - lp->rx_ring, lp->dma_rings); - return status; - } - - /* Let the adapter sleep to save power */ - yawn(dev, SLEEP); - - return status; -} - - -static int -de4x5_open(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int i, status = 0; - s32 omr; - - /* Allocate the RX buffers */ - for (i=0; i<lp->rxRingSize; i++) { - if (de4x5_alloc_rx_buff(dev, i, 0) == NULL) { - de4x5_free_rx_buffs(dev); - return -EAGAIN; - } - } - - /* - ** Wake up the adapter - */ - yawn(dev, WAKEUP); - - /* - ** Re-initialize the DE4X5... - */ - status = de4x5_init(dev); - spin_lock_init(&lp->lock); - lp->state = OPEN; - de4x5_dbg_open(dev); - - if (request_irq(dev->irq, de4x5_interrupt, IRQF_SHARED, - lp->adapter_name, dev)) { - printk("de4x5_open(): Requested IRQ%d is busy - attempting FAST/SHARE...", dev->irq); - if (request_irq(dev->irq, de4x5_interrupt, IRQF_SHARED, - lp->adapter_name, dev)) { - printk("\n Cannot get IRQ- reconfigure your hardware.\n"); - disable_ast(dev); - de4x5_free_rx_buffs(dev); - de4x5_free_tx_buffs(dev); - yawn(dev, SLEEP); - lp->state = CLOSED; - return -EAGAIN; - } else { - printk("\n Succeeded, but you should reconfigure your hardware to avoid this.\n"); - printk("WARNING: there may be IRQ related problems in heavily loaded systems.\n"); - } - } - - lp->interrupt = UNMASK_INTERRUPTS; - netif_trans_update(dev); /* prevent tx timeout */ - - START_DE4X5; - - de4x5_setup_intr(dev); - - if (de4x5_debug & DEBUG_OPEN) { - printk("\tsts: 0x%08x\n", inl(DE4X5_STS)); - printk("\tbmr: 0x%08x\n", inl(DE4X5_BMR)); - printk("\timr: 0x%08x\n", inl(DE4X5_IMR)); - printk("\tomr: 0x%08x\n", inl(DE4X5_OMR)); - printk("\tsisr: 0x%08x\n", inl(DE4X5_SISR)); - printk("\tsicr: 0x%08x\n", inl(DE4X5_SICR)); - printk("\tstrr: 0x%08x\n", inl(DE4X5_STRR)); - printk("\tsigr: 0x%08x\n", inl(DE4X5_SIGR)); - } - - return status; -} - -/* -** Initialize the DE4X5 operating conditions. NB: a chip problem with the -** DC21140 requires using perfect filtering mode for that chip. Since I can't -** see why I'd want > 14 multicast addresses, I have changed all chips to use -** the perfect filtering mode. Keep the DMA burst length at 8: there seems -** to be data corruption problems if it is larger (UDP errors seen from a -** ttcp source). -*/ -static int -de4x5_init(struct net_device *dev) -{ - /* Lock out other processes whilst setting up the hardware */ - netif_stop_queue(dev); - - de4x5_sw_reset(dev); - - /* Autoconfigure the connected port */ - autoconf_media(dev); - - return 0; -} - -static int -de4x5_sw_reset(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int i, j, status = 0; - s32 bmr, omr; - - /* Select the MII or SRL port now and RESET the MAC */ - if (!lp->useSROM) { - if (lp->phy[lp->active].id != 0) { - lp->infoblock_csr6 = OMR_SDP | OMR_PS | OMR_HBD; - } else { - lp->infoblock_csr6 = OMR_SDP | OMR_TTM; - } - de4x5_switch_mac_port(dev); - } - - /* - ** Set the programmable burst length to 8 longwords for all the DC21140 - ** Fasternet chips and 4 longwords for all others: DMA errors result - ** without these values. Cache align 16 long. - */ - bmr = (lp->chipset==DC21140 ? PBL_8 : PBL_4) | DESC_SKIP_LEN | DE4X5_CACHE_ALIGN; - bmr |= ((lp->chipset & ~0x00ff)==DC2114x ? BMR_RML : 0); - outl(bmr, DE4X5_BMR); - - omr = inl(DE4X5_OMR) & ~OMR_PR; /* Turn off promiscuous mode */ - if (lp->chipset == DC21140) { - omr |= (OMR_SDP | OMR_SB); - } - lp->setup_f = PERFECT; - outl(lp->dma_rings, DE4X5_RRBA); - outl(lp->dma_rings + NUM_RX_DESC * sizeof(struct de4x5_desc), - DE4X5_TRBA); - - lp->rx_new = lp->rx_old = 0; - lp->tx_new = lp->tx_old = 0; - - for (i = 0; i < lp->rxRingSize; i++) { - lp->rx_ring[i].status = cpu_to_le32(R_OWN); - } - - for (i = 0; i < lp->txRingSize; i++) { - lp->tx_ring[i].status = cpu_to_le32(0); - } - - barrier(); - - /* Build the setup frame depending on filtering mode */ - SetMulticastFilter(dev); - - load_packet(dev, lp->setup_frame, PERFECT_F|TD_SET|SETUP_FRAME_LEN, (struct sk_buff *)1); - outl(omr|OMR_ST, DE4X5_OMR); - - /* Poll for setup frame completion (adapter interrupts are disabled now) */ - - for (j=0, i=0;(i<500) && (j==0);i++) { /* Up to 500ms delay */ - mdelay(1); - if ((s32)le32_to_cpu(lp->tx_ring[lp->tx_new].status) >= 0) j=1; - } - outl(omr, DE4X5_OMR); /* Stop everything! */ - - if (j == 0) { - printk("%s: Setup frame timed out, status %08x\n", dev->name, - inl(DE4X5_STS)); - status = -EIO; - } - - lp->tx_new = (lp->tx_new + 1) % lp->txRingSize; - lp->tx_old = lp->tx_new; - - return status; -} - -/* -** Writes a socket buffer address to the next available transmit descriptor. -*/ -static netdev_tx_t -de4x5_queue_pkt(struct sk_buff *skb, struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - u_long flags = 0; - - netif_stop_queue(dev); - if (!lp->tx_enable) /* Cannot send for now */ - goto tx_err; - - /* - ** Clean out the TX ring asynchronously to interrupts - sometimes the - ** interrupts are lost by delayed descriptor status updates relative to - ** the irq assertion, especially with a busy PCI bus. - */ - spin_lock_irqsave(&lp->lock, flags); - de4x5_tx(dev); - spin_unlock_irqrestore(&lp->lock, flags); - - /* Test if cache is already locked - requeue skb if so */ - if (test_and_set_bit(0, (void *)&lp->cache.lock) && !lp->interrupt) - goto tx_err; - - /* Transmit descriptor ring full or stale skb */ - if (netif_queue_stopped(dev) || (u_long) lp->tx_skb[lp->tx_new] > 1) { - if (lp->interrupt) { - de4x5_putb_cache(dev, skb); /* Requeue the buffer */ - } else { - de4x5_put_cache(dev, skb); - } - if (de4x5_debug & DEBUG_TX) { - printk("%s: transmit busy, lost media or stale skb found:\n STS:%08x\n tbusy:%d\n IMR:%08x\n OMR:%08x\n Stale skb: %s\n",dev->name, inl(DE4X5_STS), netif_queue_stopped(dev), inl(DE4X5_IMR), inl(DE4X5_OMR), ((u_long) lp->tx_skb[lp->tx_new] > 1) ? "YES" : "NO"); - } - } else if (skb->len > 0) { - /* If we already have stuff queued locally, use that first */ - if (!skb_queue_empty(&lp->cache.queue) && !lp->interrupt) { - de4x5_put_cache(dev, skb); - skb = de4x5_get_cache(dev); - } - - while (skb && !netif_queue_stopped(dev) && - (u_long) lp->tx_skb[lp->tx_new] <= 1) { - spin_lock_irqsave(&lp->lock, flags); - netif_stop_queue(dev); - load_packet(dev, skb->data, TD_IC | TD_LS | TD_FS | skb->len, skb); - lp->stats.tx_bytes += skb->len; - outl(POLL_DEMAND, DE4X5_TPD);/* Start the TX */ - - lp->tx_new = (lp->tx_new + 1) % lp->txRingSize; - - if (TX_BUFFS_AVAIL) { - netif_start_queue(dev); /* Another pkt may be queued */ - } - skb = de4x5_get_cache(dev); - spin_unlock_irqrestore(&lp->lock, flags); - } - if (skb) de4x5_putb_cache(dev, skb); - } - - lp->cache.lock = 0; - - return NETDEV_TX_OK; -tx_err: - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; -} - -/* -** The DE4X5 interrupt handler. -** -** I/O Read/Writes through intermediate PCI bridges are never 'posted', -** so that the asserted interrupt always has some real data to work with - -** if these I/O accesses are ever changed to memory accesses, ensure the -** STS write is read immediately to complete the transaction if the adapter -** is not on bus 0. Lost interrupts can still occur when the PCI bus load -** is high and descriptor status bits cannot be set before the associated -** interrupt is asserted and this routine entered. -*/ -static irqreturn_t -de4x5_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct de4x5_private *lp; - s32 imr, omr, sts, limit; - u_long iobase; - unsigned int handled = 0; - - lp = netdev_priv(dev); - spin_lock(&lp->lock); - iobase = dev->base_addr; - - DISABLE_IRQs; /* Ensure non re-entrancy */ - - if (test_and_set_bit(MASK_INTERRUPTS, (void*) &lp->interrupt)) - printk("%s: Re-entering the interrupt handler.\n", dev->name); - - synchronize_irq(dev->irq); - - for (limit=0; limit<8; limit++) { - sts = inl(DE4X5_STS); /* Read IRQ status */ - outl(sts, DE4X5_STS); /* Reset the board interrupts */ - - if (!(sts & lp->irq_mask)) break;/* All done */ - handled = 1; - - if (sts & (STS_RI | STS_RU)) /* Rx interrupt (packet[s] arrived) */ - de4x5_rx(dev); - - if (sts & (STS_TI | STS_TU)) /* Tx interrupt (packet sent) */ - de4x5_tx(dev); - - if (sts & STS_LNF) { /* TP Link has failed */ - lp->irq_mask &= ~IMR_LFM; - } - - if (sts & STS_UNF) { /* Transmit underrun */ - de4x5_txur(dev); - } - - if (sts & STS_SE) { /* Bus Error */ - STOP_DE4X5; - printk("%s: Fatal bus error occurred, sts=%#8x, device stopped.\n", - dev->name, sts); - spin_unlock(&lp->lock); - return IRQ_HANDLED; - } - } - - /* Load the TX ring with any locally stored packets */ - if (!test_and_set_bit(0, (void *)&lp->cache.lock)) { - while (!skb_queue_empty(&lp->cache.queue) && !netif_queue_stopped(dev) && lp->tx_enable) { - de4x5_queue_pkt(de4x5_get_cache(dev), dev); - } - lp->cache.lock = 0; - } - - lp->interrupt = UNMASK_INTERRUPTS; - ENABLE_IRQs; - spin_unlock(&lp->lock); - - return IRQ_RETVAL(handled); -} - -static int -de4x5_rx(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int entry; - s32 status; - - for (entry=lp->rx_new; (s32)le32_to_cpu(lp->rx_ring[entry].status)>=0; - entry=lp->rx_new) { - status = (s32)le32_to_cpu(lp->rx_ring[entry].status); - - if (lp->rx_ovf) { - if (inl(DE4X5_MFC) & MFC_FOCM) { - de4x5_rx_ovfc(dev); - break; - } - } - - if (status & RD_FS) { /* Remember the start of frame */ - lp->rx_old = entry; - } - - if (status & RD_LS) { /* Valid frame status */ - if (lp->tx_enable) lp->linkOK++; - if (status & RD_ES) { /* There was an error. */ - lp->stats.rx_errors++; /* Update the error stats. */ - if (status & (RD_RF | RD_TL)) lp->stats.rx_frame_errors++; - if (status & RD_CE) lp->stats.rx_crc_errors++; - if (status & RD_OF) lp->stats.rx_fifo_errors++; - if (status & RD_TL) lp->stats.rx_length_errors++; - if (status & RD_RF) lp->pktStats.rx_runt_frames++; - if (status & RD_CS) lp->pktStats.rx_collision++; - if (status & RD_DB) lp->pktStats.rx_dribble++; - if (status & RD_OF) lp->pktStats.rx_overflow++; - } else { /* A valid frame received */ - struct sk_buff *skb; - short pkt_len = (short)(le32_to_cpu(lp->rx_ring[entry].status) - >> 16) - 4; - - if ((skb = de4x5_alloc_rx_buff(dev, entry, pkt_len)) == NULL) { - printk("%s: Insufficient memory; nuking packet.\n", - dev->name); - lp->stats.rx_dropped++; - } else { - de4x5_dbg_rx(skb, pkt_len); - - /* Push up the protocol stack */ - skb->protocol=eth_type_trans(skb,dev); - de4x5_local_stats(dev, skb->data, pkt_len); - netif_rx(skb); - - /* Update stats */ - lp->stats.rx_packets++; - lp->stats.rx_bytes += pkt_len; - } - } - - /* Change buffer ownership for this frame, back to the adapter */ - for (;lp->rx_old!=entry;lp->rx_old=(lp->rx_old + 1)%lp->rxRingSize) { - lp->rx_ring[lp->rx_old].status = cpu_to_le32(R_OWN); - barrier(); - } - lp->rx_ring[entry].status = cpu_to_le32(R_OWN); - barrier(); - } - - /* - ** Update entry information - */ - lp->rx_new = (lp->rx_new + 1) % lp->rxRingSize; - } - - return 0; -} - -static inline void -de4x5_free_tx_buff(struct de4x5_private *lp, int entry) -{ - dma_unmap_single(lp->gendev, le32_to_cpu(lp->tx_ring[entry].buf), - le32_to_cpu(lp->tx_ring[entry].des1) & TD_TBS1, - DMA_TO_DEVICE); - if ((u_long) lp->tx_skb[entry] > 1) - dev_kfree_skb_irq(lp->tx_skb[entry]); - lp->tx_skb[entry] = NULL; -} - -/* -** Buffer sent - check for TX buffer errors. -*/ -static int -de4x5_tx(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int entry; - s32 status; - - for (entry = lp->tx_old; entry != lp->tx_new; entry = lp->tx_old) { - status = (s32)le32_to_cpu(lp->tx_ring[entry].status); - if (status < 0) { /* Buffer not sent yet */ - break; - } else if (status != 0x7fffffff) { /* Not setup frame */ - if (status & TD_ES) { /* An error happened */ - lp->stats.tx_errors++; - if (status & TD_NC) lp->stats.tx_carrier_errors++; - if (status & TD_LC) lp->stats.tx_window_errors++; - if (status & TD_UF) lp->stats.tx_fifo_errors++; - if (status & TD_EC) lp->pktStats.excessive_collisions++; - if (status & TD_DE) lp->stats.tx_aborted_errors++; - - if (TX_PKT_PENDING) { - outl(POLL_DEMAND, DE4X5_TPD);/* Restart a stalled TX */ - } - } else { /* Packet sent */ - lp->stats.tx_packets++; - if (lp->tx_enable) lp->linkOK++; - } - /* Update the collision counter */ - lp->stats.collisions += ((status & TD_EC) ? 16 : - ((status & TD_CC) >> 3)); - - /* Free the buffer. */ - if (lp->tx_skb[entry] != NULL) - de4x5_free_tx_buff(lp, entry); - } - - /* Update all the pointers */ - lp->tx_old = (lp->tx_old + 1) % lp->txRingSize; - } - - /* Any resources available? */ - if (TX_BUFFS_AVAIL && netif_queue_stopped(dev)) { - if (lp->interrupt) - netif_wake_queue(dev); - else - netif_start_queue(dev); - } - - return 0; -} - -static void -de4x5_ast(struct timer_list *t) -{ - struct de4x5_private *lp = from_timer(lp, t, timer); - struct net_device *dev = dev_get_drvdata(lp->gendev); - int next_tick = DE4X5_AUTOSENSE_MS; - int dt; - - if (lp->useSROM) - next_tick = srom_autoconf(dev); - else if (lp->chipset == DC21140) - next_tick = dc21140m_autoconf(dev); - else if (lp->chipset == DC21041) - next_tick = dc21041_autoconf(dev); - else if (lp->chipset == DC21040) - next_tick = dc21040_autoconf(dev); - lp->linkOK = 0; - - dt = (next_tick * HZ) / 1000; - - if (!dt) - dt = 1; - - mod_timer(&lp->timer, jiffies + dt); -} - -static int -de4x5_txur(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int omr; - - omr = inl(DE4X5_OMR); - if (!(omr & OMR_SF) || (lp->chipset==DC21041) || (lp->chipset==DC21040)) { - omr &= ~(OMR_ST|OMR_SR); - outl(omr, DE4X5_OMR); - while (inl(DE4X5_STS) & STS_TS); - if ((omr & OMR_TR) < OMR_TR) { - omr += 0x4000; - } else { - omr |= OMR_SF; - } - outl(omr | OMR_ST | OMR_SR, DE4X5_OMR); - } - - return 0; -} - -static int -de4x5_rx_ovfc(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int omr; - - omr = inl(DE4X5_OMR); - outl(omr & ~OMR_SR, DE4X5_OMR); - while (inl(DE4X5_STS) & STS_RS); - - for (; (s32)le32_to_cpu(lp->rx_ring[lp->rx_new].status)>=0;) { - lp->rx_ring[lp->rx_new].status = cpu_to_le32(R_OWN); - lp->rx_new = (lp->rx_new + 1) % lp->rxRingSize; - } - - outl(omr, DE4X5_OMR); - - return 0; -} - -static int -de4x5_close(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 imr, omr; - - disable_ast(dev); - - netif_stop_queue(dev); - - if (de4x5_debug & DEBUG_CLOSE) { - printk("%s: Shutting down ethercard, status was %8.8x.\n", - dev->name, inl(DE4X5_STS)); - } - - /* - ** We stop the DE4X5 here... mask interrupts and stop TX & RX - */ - DISABLE_IRQs; - STOP_DE4X5; - - /* Free the associated irq */ - free_irq(dev->irq, dev); - lp->state = CLOSED; - - /* Free any socket buffers */ - de4x5_free_rx_buffs(dev); - de4x5_free_tx_buffs(dev); - - /* Put the adapter to sleep to save power */ - yawn(dev, SLEEP); - - return 0; -} - -static struct net_device_stats * -de4x5_get_stats(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - lp->stats.rx_missed_errors = (int)(inl(DE4X5_MFC) & (MFC_OVFL | MFC_CNTR)); - - return &lp->stats; -} - -static void -de4x5_local_stats(struct net_device *dev, char *buf, int pkt_len) -{ - struct de4x5_private *lp = netdev_priv(dev); - int i; - - for (i=1; i<DE4X5_PKT_STAT_SZ-1; i++) { - if (pkt_len < (i*DE4X5_PKT_BIN_SZ)) { - lp->pktStats.bins[i]++; - i = DE4X5_PKT_STAT_SZ; - } - } - if (is_multicast_ether_addr(buf)) { - if (is_broadcast_ether_addr(buf)) { - lp->pktStats.broadcast++; - } else { - lp->pktStats.multicast++; - } - } else if (ether_addr_equal(buf, dev->dev_addr)) { - lp->pktStats.unicast++; - } - - lp->pktStats.bins[0]++; /* Duplicates stats.rx_packets */ - if (lp->pktStats.bins[0] == 0) { /* Reset counters */ - memset((char *)&lp->pktStats, 0, sizeof(lp->pktStats)); - } -} - -/* -** Removes the TD_IC flag from previous descriptor to improve TX performance. -** If the flag is changed on a descriptor that is being read by the hardware, -** I assume PCI transaction ordering will mean you are either successful or -** just miss asserting the change to the hardware. Anyway you're messing with -** a descriptor you don't own, but this shouldn't kill the chip provided -** the descriptor register is read only to the hardware. -*/ -static void -load_packet(struct net_device *dev, char *buf, u32 flags, struct sk_buff *skb) -{ - struct de4x5_private *lp = netdev_priv(dev); - int entry = (lp->tx_new ? lp->tx_new-1 : lp->txRingSize-1); - dma_addr_t buf_dma = dma_map_single(lp->gendev, buf, flags & TD_TBS1, DMA_TO_DEVICE); - - lp->tx_ring[lp->tx_new].buf = cpu_to_le32(buf_dma); - lp->tx_ring[lp->tx_new].des1 &= cpu_to_le32(TD_TER); - lp->tx_ring[lp->tx_new].des1 |= cpu_to_le32(flags); - lp->tx_skb[lp->tx_new] = skb; - lp->tx_ring[entry].des1 &= cpu_to_le32(~TD_IC); - barrier(); - - lp->tx_ring[lp->tx_new].status = cpu_to_le32(T_OWN); - barrier(); -} - -/* -** Set or clear the multicast filter for this adaptor. -*/ -static void -set_multicast_list(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - /* First, double check that the adapter is open */ - if (lp->state == OPEN) { - if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */ - u32 omr; - omr = inl(DE4X5_OMR); - omr |= OMR_PR; - outl(omr, DE4X5_OMR); - } else { - SetMulticastFilter(dev); - load_packet(dev, lp->setup_frame, TD_IC | PERFECT_F | TD_SET | - SETUP_FRAME_LEN, (struct sk_buff *)1); - - lp->tx_new = (lp->tx_new + 1) % lp->txRingSize; - outl(POLL_DEMAND, DE4X5_TPD); /* Start the TX */ - netif_trans_update(dev); /* prevent tx timeout */ - } - } -} - -/* -** Calculate the hash code and update the logical address filter -** from a list of ethernet multicast addresses. -** Little endian crc one liner from Matt Thomas, DEC. -*/ -static void -SetMulticastFilter(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - struct netdev_hw_addr *ha; - u_long iobase = dev->base_addr; - int i, bit, byte; - u16 hashcode; - u32 omr, crc; - char *pa; - unsigned char *addrs; - - omr = inl(DE4X5_OMR); - omr &= ~(OMR_PR | OMR_PM); - pa = build_setup_frame(dev, ALL); /* Build the basic frame */ - - if ((dev->flags & IFF_ALLMULTI) || (netdev_mc_count(dev) > 14)) { - omr |= OMR_PM; /* Pass all multicasts */ - } else if (lp->setup_f == HASH_PERF) { /* Hash Filtering */ - netdev_for_each_mc_addr(ha, dev) { - crc = ether_crc_le(ETH_ALEN, ha->addr); - hashcode = crc & DE4X5_HASH_BITS; /* hashcode is 9 LSb of CRC */ - - byte = hashcode >> 3; /* bit[3-8] -> byte in filter */ - bit = 1 << (hashcode & 0x07);/* bit[0-2] -> bit in byte */ - - byte <<= 1; /* calc offset into setup frame */ - if (byte & 0x02) { - byte -= 1; - } - lp->setup_frame[byte] |= bit; - } - } else { /* Perfect filtering */ - netdev_for_each_mc_addr(ha, dev) { - addrs = ha->addr; - for (i=0; i<ETH_ALEN; i++) { - *(pa + (i&1)) = *addrs++; - if (i & 0x01) pa += 4; - } - } - } - outl(omr, DE4X5_OMR); -} - -#ifdef CONFIG_EISA - -static u_char de4x5_irq[] = EISA_ALLOWED_IRQ_LIST; - -static int de4x5_eisa_probe(struct device *gendev) -{ - struct eisa_device *edev; - u_long iobase; - u_char irq, regval; - u_short vendor; - u32 cfid; - int status, device; - struct net_device *dev; - struct de4x5_private *lp; - - edev = to_eisa_device (gendev); - iobase = edev->base_addr; - - if (!request_region (iobase, DE4X5_EISA_TOTAL_SIZE, "de4x5")) - return -EBUSY; - - if (!request_region (iobase + DE4X5_EISA_IO_PORTS, - DE4X5_EISA_TOTAL_SIZE, "de4x5")) { - status = -EBUSY; - goto release_reg_1; - } - - if (!(dev = alloc_etherdev (sizeof (struct de4x5_private)))) { - status = -ENOMEM; - goto release_reg_2; - } - lp = netdev_priv(dev); - - cfid = (u32) inl(PCI_CFID); - lp->cfrv = (u_short) inl(PCI_CFRV); - device = (cfid >> 8) & 0x00ffff00; - vendor = (u_short) cfid; - - /* Read the EISA Configuration Registers */ - regval = inb(EISA_REG0) & (ER0_INTL | ER0_INTT); -#ifdef CONFIG_ALPHA - /* Looks like the Jensen firmware (rev 2.2) doesn't really - * care about the EISA configuration, and thus doesn't - * configure the PLX bridge properly. Oh well... Simply mimic - * the EISA config file to sort it out. */ - - /* EISA REG1: Assert DecChip 21040 HW Reset */ - outb (ER1_IAM | 1, EISA_REG1); - mdelay (1); - - /* EISA REG1: Deassert DecChip 21040 HW Reset */ - outb (ER1_IAM, EISA_REG1); - mdelay (1); - - /* EISA REG3: R/W Burst Transfer Enable */ - outb (ER3_BWE | ER3_BRE, EISA_REG3); - - /* 32_bit slave/master, Preempt Time=23 bclks, Unlatched Interrupt */ - outb (ER0_BSW | ER0_BMW | ER0_EPT | regval, EISA_REG0); -#endif - irq = de4x5_irq[(regval >> 1) & 0x03]; - - if (is_DC2114x) { - device = ((lp->cfrv & CFRV_RN) < DC2114x_BRK ? DC21142 : DC21143); - } - lp->chipset = device; - lp->bus = EISA; - - /* Write the PCI Configuration Registers */ - outl(PCI_COMMAND_IO | PCI_COMMAND_MASTER, PCI_CFCS); - outl(0x00006000, PCI_CFLT); - outl(iobase, PCI_CBIO); - - DevicePresent(dev, EISA_APROM); - - dev->irq = irq; - - if (!(status = de4x5_hw_init (dev, iobase, gendev))) { - return 0; - } - - free_netdev (dev); - release_reg_2: - release_region (iobase + DE4X5_EISA_IO_PORTS, DE4X5_EISA_TOTAL_SIZE); - release_reg_1: - release_region (iobase, DE4X5_EISA_TOTAL_SIZE); - - return status; -} - -static int de4x5_eisa_remove(struct device *device) -{ - struct net_device *dev; - u_long iobase; - - dev = dev_get_drvdata(device); - iobase = dev->base_addr; - - unregister_netdev (dev); - free_netdev (dev); - release_region (iobase + DE4X5_EISA_IO_PORTS, DE4X5_EISA_TOTAL_SIZE); - release_region (iobase, DE4X5_EISA_TOTAL_SIZE); - - return 0; -} - -static const struct eisa_device_id de4x5_eisa_ids[] = { - { "DEC4250", 0 }, /* 0 is the board name index... */ - { "" } -}; -MODULE_DEVICE_TABLE(eisa, de4x5_eisa_ids); - -static struct eisa_driver de4x5_eisa_driver = { - .id_table = de4x5_eisa_ids, - .driver = { - .name = "de4x5", - .probe = de4x5_eisa_probe, - .remove = de4x5_eisa_remove, - } -}; -#endif - -#ifdef CONFIG_PCI - -/* -** This function searches the current bus (which is >0) for a DECchip with an -** SROM, so that in multiport cards that have one SROM shared between multiple -** DECchips, we can find the base SROM irrespective of the BIOS scan direction. -** For single port cards this is a time waster... -*/ -static void -srom_search(struct net_device *dev, struct pci_dev *pdev) -{ - u_char pb; - u_short vendor, status; - u_int irq = 0, device; - u_long iobase = 0; /* Clear upper 32 bits in Alphas */ - int i, j; - struct de4x5_private *lp = netdev_priv(dev); - struct pci_dev *this_dev; - - list_for_each_entry(this_dev, &pdev->bus->devices, bus_list) { - vendor = this_dev->vendor; - device = this_dev->device << 8; - if (!(is_DC21040 || is_DC21041 || is_DC21140 || is_DC2114x)) continue; - - /* Get the chip configuration revision register */ - pb = this_dev->bus->number; - - /* Set the device number information */ - lp->device = PCI_SLOT(this_dev->devfn); - lp->bus_num = pb; - - /* Set the chipset information */ - if (is_DC2114x) { - device = ((this_dev->revision & CFRV_RN) < DC2114x_BRK - ? DC21142 : DC21143); - } - lp->chipset = device; - - /* Get the board I/O address (64 bits on sparc64) */ - iobase = pci_resource_start(this_dev, 0); - - /* Fetch the IRQ to be used */ - irq = this_dev->irq; - if ((irq == 0) || (irq == 0xff) || ((int)irq == -1)) continue; - - /* Check if I/O accesses are enabled */ - pci_read_config_word(this_dev, PCI_COMMAND, &status); - if (!(status & PCI_COMMAND_IO)) continue; - - /* Search for a valid SROM attached to this DECchip */ - DevicePresent(dev, DE4X5_APROM); - for (j=0, i=0; i<ETH_ALEN; i++) { - j += (u_char) *((u_char *)&lp->srom + SROM_HWADD + i); - } - if (j != 0 && j != 6 * 0xff) { - last.chipset = device; - last.bus = pb; - last.irq = irq; - for (i=0; i<ETH_ALEN; i++) { - last.addr[i] = (u_char)*((u_char *)&lp->srom + SROM_HWADD + i); - } - return; - } - } -} - -/* -** PCI bus I/O device probe -** NB: PCI I/O accesses and Bus Mastering are enabled by the PCI BIOS, not -** the driver. Some PCI BIOS's, pre V2.1, need the slot + features to be -** enabled by the user first in the set up utility. Hence we just check for -** enabled features and silently ignore the card if they're not. -** -** STOP PRESS: Some BIOS's __require__ the driver to enable the bus mastering -** bit. Here, check for I/O accesses and then set BM. If you put the card in -** a non BM slot, you're on your own (and complain to the PC vendor that your -** PC doesn't conform to the PCI standard)! -** -** This function is only compatible with the *latest* 2.1.x kernels. For 2.0.x -** kernels use the V0.535[n] drivers. -*/ - -static int de4x5_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - u_char pb, pbus = 0, dev_num, dnum = 0, timer; - u_short vendor, status; - u_int irq = 0, device; - u_long iobase = 0; /* Clear upper 32 bits in Alphas */ - int error; - struct net_device *dev; - struct de4x5_private *lp; - - dev_num = PCI_SLOT(pdev->devfn); - pb = pdev->bus->number; - - if (io) { /* probe a single PCI device */ - pbus = (u_short)(io >> 8); - dnum = (u_short)(io & 0xff); - if ((pbus != pb) || (dnum != dev_num)) - return -ENODEV; - } - - vendor = pdev->vendor; - device = pdev->device << 8; - if (!(is_DC21040 || is_DC21041 || is_DC21140 || is_DC2114x)) - return -ENODEV; - - /* Ok, the device seems to be for us. */ - if ((error = pci_enable_device (pdev))) - return error; - - if (!(dev = alloc_etherdev (sizeof (struct de4x5_private)))) { - error = -ENOMEM; - goto disable_dev; - } - - lp = netdev_priv(dev); - lp->bus = PCI; - lp->bus_num = 0; - - /* Search for an SROM on this bus */ - if (lp->bus_num != pb) { - lp->bus_num = pb; - srom_search(dev, pdev); - } - - /* Get the chip configuration revision register */ - lp->cfrv = pdev->revision; - - /* Set the device number information */ - lp->device = dev_num; - lp->bus_num = pb; - - /* Set the chipset information */ - if (is_DC2114x) { - device = ((lp->cfrv & CFRV_RN) < DC2114x_BRK ? DC21142 : DC21143); - } - lp->chipset = device; - - /* Get the board I/O address (64 bits on sparc64) */ - iobase = pci_resource_start(pdev, 0); - - /* Fetch the IRQ to be used */ - irq = pdev->irq; - if ((irq == 0) || (irq == 0xff) || ((int)irq == -1)) { - error = -ENODEV; - goto free_dev; - } - - /* Check if I/O accesses and Bus Mastering are enabled */ - pci_read_config_word(pdev, PCI_COMMAND, &status); -#ifdef __powerpc__ - if (!(status & PCI_COMMAND_IO)) { - status |= PCI_COMMAND_IO; - pci_write_config_word(pdev, PCI_COMMAND, status); - pci_read_config_word(pdev, PCI_COMMAND, &status); - } -#endif /* __powerpc__ */ - if (!(status & PCI_COMMAND_IO)) { - error = -ENODEV; - goto free_dev; - } - - if (!(status & PCI_COMMAND_MASTER)) { - status |= PCI_COMMAND_MASTER; - pci_write_config_word(pdev, PCI_COMMAND, status); - pci_read_config_word(pdev, PCI_COMMAND, &status); - } - if (!(status & PCI_COMMAND_MASTER)) { - error = -ENODEV; - goto free_dev; - } - - /* Check the latency timer for values >= 0x60 */ - pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &timer); - if (timer < 0x60) { - pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x60); - } - - DevicePresent(dev, DE4X5_APROM); - - if (!request_region (iobase, DE4X5_PCI_TOTAL_SIZE, "de4x5")) { - error = -EBUSY; - goto free_dev; - } - - dev->irq = irq; - - if ((error = de4x5_hw_init(dev, iobase, &pdev->dev))) { - goto release; - } - - return 0; - - release: - release_region (iobase, DE4X5_PCI_TOTAL_SIZE); - free_dev: - free_netdev (dev); - disable_dev: - pci_disable_device (pdev); - return error; -} - -static void de4x5_pci_remove(struct pci_dev *pdev) -{ - struct net_device *dev; - u_long iobase; - - dev = pci_get_drvdata(pdev); - iobase = dev->base_addr; - - unregister_netdev (dev); - free_netdev (dev); - release_region (iobase, DE4X5_PCI_TOTAL_SIZE); - pci_disable_device (pdev); -} - -static const struct pci_device_id de4x5_pci_tbl[] = { - { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, - { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, - { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, - { }, -}; - -static struct pci_driver de4x5_pci_driver = { - .name = "de4x5", - .id_table = de4x5_pci_tbl, - .probe = de4x5_pci_probe, - .remove = de4x5_pci_remove, -}; - -#endif - -/* -** Auto configure the media here rather than setting the port at compile -** time. This routine is called by de4x5_init() and when a loss of media is -** detected (excessive collisions, loss of carrier, no carrier or link fail -** [TP] or no recent receive activity) to check whether the user has been -** sneaky and changed the port on us. -*/ -static int -autoconf_media(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - disable_ast(dev); - - lp->c_media = AUTO; /* Bogus last media */ - inl(DE4X5_MFC); /* Zero the lost frames counter */ - lp->media = INIT; - lp->tcount = 0; - - de4x5_ast(&lp->timer); - - return lp->media; -} - -/* -** Autoconfigure the media when using the DC21040. AUI cannot be distinguished -** from BNC as the port has a jumper to set thick or thin wire. When set for -** BNC, the BNC port will indicate activity if it's not terminated correctly. -** The only way to test for that is to place a loopback packet onto the -** network and watch for errors. Since we're messing with the interrupt mask -** register, disable the board interrupts and do not allow any more packets to -** be queued to the hardware. Re-enable everything only when the media is -** found. -** I may have to "age out" locally queued packets so that the higher layer -** timeouts don't effectively duplicate packets on the network. -*/ -static int -dc21040_autoconf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int next_tick = DE4X5_AUTOSENSE_MS; - s32 imr; - - switch (lp->media) { - case INIT: - DISABLE_IRQs; - lp->tx_enable = false; - lp->timeout = -1; - de4x5_save_skbs(dev); - if ((lp->autosense == AUTO) || (lp->autosense == TP)) { - lp->media = TP; - } else if ((lp->autosense == BNC) || (lp->autosense == AUI) || (lp->autosense == BNC_AUI)) { - lp->media = BNC_AUI; - } else if (lp->autosense == EXT_SIA) { - lp->media = EXT_SIA; - } else { - lp->media = NC; - } - lp->local_state = 0; - next_tick = dc21040_autoconf(dev); - break; - - case TP: - next_tick = dc21040_state(dev, 0x8f01, 0xffff, 0x0000, 3000, BNC_AUI, - TP_SUSPECT, test_tp); - break; - - case TP_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, TP, test_tp, dc21040_autoconf); - break; - - case BNC: - case AUI: - case BNC_AUI: - next_tick = dc21040_state(dev, 0x8f09, 0x0705, 0x0006, 3000, EXT_SIA, - BNC_AUI_SUSPECT, ping_media); - break; - - case BNC_AUI_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, BNC_AUI, ping_media, dc21040_autoconf); - break; - - case EXT_SIA: - next_tick = dc21040_state(dev, 0x3041, 0x0000, 0x0006, 3000, - NC, EXT_SIA_SUSPECT, ping_media); - break; - - case EXT_SIA_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, EXT_SIA, ping_media, dc21040_autoconf); - break; - - case NC: - /* default to TP for all */ - reset_init_sia(dev, 0x8f01, 0xffff, 0x0000); - if (lp->media != lp->c_media) { - de4x5_dbg_media(dev); - lp->c_media = lp->media; - } - lp->media = INIT; - lp->tx_enable = false; - break; - } - - return next_tick; -} - -static int -dc21040_state(struct net_device *dev, int csr13, int csr14, int csr15, int timeout, - int next_state, int suspect_state, - int (*fn)(struct net_device *, int)) -{ - struct de4x5_private *lp = netdev_priv(dev); - int next_tick = DE4X5_AUTOSENSE_MS; - int linkBad; - - switch (lp->local_state) { - case 0: - reset_init_sia(dev, csr13, csr14, csr15); - lp->local_state++; - next_tick = 500; - break; - - case 1: - if (!lp->tx_enable) { - linkBad = fn(dev, timeout); - if (linkBad < 0) { - next_tick = linkBad & ~TIMER_CB; - } else { - if (linkBad && (lp->autosense == AUTO)) { - lp->local_state = 0; - lp->media = next_state; - } else { - de4x5_init_connection(dev); - } - } - } else if (!lp->linkOK && (lp->autosense == AUTO)) { - lp->media = suspect_state; - next_tick = 3000; - } - break; - } - - return next_tick; -} - -static int -de4x5_suspect_state(struct net_device *dev, int timeout, int prev_state, - int (*fn)(struct net_device *, int), - int (*asfn)(struct net_device *)) -{ - struct de4x5_private *lp = netdev_priv(dev); - int next_tick = DE4X5_AUTOSENSE_MS; - int linkBad; - - switch (lp->local_state) { - case 1: - if (lp->linkOK) { - lp->media = prev_state; - } else { - lp->local_state++; - next_tick = asfn(dev); - } - break; - - case 2: - linkBad = fn(dev, timeout); - if (linkBad < 0) { - next_tick = linkBad & ~TIMER_CB; - } else if (!linkBad) { - lp->local_state--; - lp->media = prev_state; - } else { - lp->media = INIT; - lp->tcount++; - } - } - - return next_tick; -} - -/* -** Autoconfigure the media when using the DC21041. AUI needs to be tested -** before BNC, because the BNC port will indicate activity if it's not -** terminated correctly. The only way to test for that is to place a loopback -** packet onto the network and watch for errors. Since we're messing with -** the interrupt mask register, disable the board interrupts and do not allow -** any more packets to be queued to the hardware. Re-enable everything only -** when the media is found. -*/ -static int -dc21041_autoconf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 sts, irqs, irq_mask, imr, omr; - int next_tick = DE4X5_AUTOSENSE_MS; - - switch (lp->media) { - case INIT: - DISABLE_IRQs; - lp->tx_enable = false; - lp->timeout = -1; - de4x5_save_skbs(dev); /* Save non transmitted skb's */ - if ((lp->autosense == AUTO) || (lp->autosense == TP_NW)) { - lp->media = TP; /* On chip auto negotiation is broken */ - } else if (lp->autosense == TP) { - lp->media = TP; - } else if (lp->autosense == BNC) { - lp->media = BNC; - } else if (lp->autosense == AUI) { - lp->media = AUI; - } else { - lp->media = NC; - } - lp->local_state = 0; - next_tick = dc21041_autoconf(dev); - break; - - case TP_NW: - if (lp->timeout < 0) { - omr = inl(DE4X5_OMR);/* Set up full duplex for the autonegotiate */ - outl(omr | OMR_FDX, DE4X5_OMR); - } - irqs = STS_LNF | STS_LNP; - irq_mask = IMR_LFM | IMR_LPM; - sts = test_media(dev, irqs, irq_mask, 0xef01, 0xffff, 0x0008, 2400); - if (sts < 0) { - next_tick = sts & ~TIMER_CB; - } else { - if (sts & STS_LNP) { - lp->media = ANS; - } else { - lp->media = AUI; - } - next_tick = dc21041_autoconf(dev); - } - break; - - case ANS: - if (!lp->tx_enable) { - irqs = STS_LNP; - irq_mask = IMR_LPM; - sts = test_ans(dev, irqs, irq_mask, 3000); - if (sts < 0) { - next_tick = sts & ~TIMER_CB; - } else { - if (!(sts & STS_LNP) && (lp->autosense == AUTO)) { - lp->media = TP; - next_tick = dc21041_autoconf(dev); - } else { - lp->local_state = 1; - de4x5_init_connection(dev); - } - } - } else if (!lp->linkOK && (lp->autosense == AUTO)) { - lp->media = ANS_SUSPECT; - next_tick = 3000; - } - break; - - case ANS_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, ANS, test_tp, dc21041_autoconf); - break; - - case TP: - if (!lp->tx_enable) { - if (lp->timeout < 0) { - omr = inl(DE4X5_OMR); /* Set up half duplex for TP */ - outl(omr & ~OMR_FDX, DE4X5_OMR); - } - irqs = STS_LNF | STS_LNP; - irq_mask = IMR_LFM | IMR_LPM; - sts = test_media(dev,irqs, irq_mask, 0xef01, 0xff3f, 0x0008, 2400); - if (sts < 0) { - next_tick = sts & ~TIMER_CB; - } else { - if (!(sts & STS_LNP) && (lp->autosense == AUTO)) { - if (inl(DE4X5_SISR) & SISR_NRA) { - lp->media = AUI; /* Non selected port activity */ - } else { - lp->media = BNC; - } - next_tick = dc21041_autoconf(dev); - } else { - lp->local_state = 1; - de4x5_init_connection(dev); - } - } - } else if (!lp->linkOK && (lp->autosense == AUTO)) { - lp->media = TP_SUSPECT; - next_tick = 3000; - } - break; - - case TP_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, TP, test_tp, dc21041_autoconf); - break; - - case AUI: - if (!lp->tx_enable) { - if (lp->timeout < 0) { - omr = inl(DE4X5_OMR); /* Set up half duplex for AUI */ - outl(omr & ~OMR_FDX, DE4X5_OMR); - } - irqs = 0; - irq_mask = 0; - sts = test_media(dev,irqs, irq_mask, 0xef09, 0xf73d, 0x000e, 1000); - if (sts < 0) { - next_tick = sts & ~TIMER_CB; - } else { - if (!(inl(DE4X5_SISR) & SISR_SRA) && (lp->autosense == AUTO)) { - lp->media = BNC; - next_tick = dc21041_autoconf(dev); - } else { - lp->local_state = 1; - de4x5_init_connection(dev); - } - } - } else if (!lp->linkOK && (lp->autosense == AUTO)) { - lp->media = AUI_SUSPECT; - next_tick = 3000; - } - break; - - case AUI_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, AUI, ping_media, dc21041_autoconf); - break; - - case BNC: - switch (lp->local_state) { - case 0: - if (lp->timeout < 0) { - omr = inl(DE4X5_OMR); /* Set up half duplex for BNC */ - outl(omr & ~OMR_FDX, DE4X5_OMR); - } - irqs = 0; - irq_mask = 0; - sts = test_media(dev,irqs, irq_mask, 0xef09, 0xf73d, 0x0006, 1000); - if (sts < 0) { - next_tick = sts & ~TIMER_CB; - } else { - lp->local_state++; /* Ensure media connected */ - next_tick = dc21041_autoconf(dev); - } - break; - - case 1: - if (!lp->tx_enable) { - if ((sts = ping_media(dev, 3000)) < 0) { - next_tick = sts & ~TIMER_CB; - } else { - if (sts) { - lp->local_state = 0; - lp->media = NC; - } else { - de4x5_init_connection(dev); - } - } - } else if (!lp->linkOK && (lp->autosense == AUTO)) { - lp->media = BNC_SUSPECT; - next_tick = 3000; - } - break; - } - break; - - case BNC_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, BNC, ping_media, dc21041_autoconf); - break; - - case NC: - omr = inl(DE4X5_OMR); /* Set up full duplex for the autonegotiate */ - outl(omr | OMR_FDX, DE4X5_OMR); - reset_init_sia(dev, 0xef01, 0xffff, 0x0008);/* Initialise the SIA */ - if (lp->media != lp->c_media) { - de4x5_dbg_media(dev); - lp->c_media = lp->media; - } - lp->media = INIT; - lp->tx_enable = false; - break; - } - - return next_tick; -} - -/* -** Some autonegotiation chips are broken in that they do not return the -** acknowledge bit (anlpa & MII_ANLPA_ACK) in the link partner advertisement -** register, except at the first power up negotiation. -*/ -static int -dc21140m_autoconf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - int ana, anlpa, cap, cr, slnk, sr; - int next_tick = DE4X5_AUTOSENSE_MS; - u_long imr, omr, iobase = dev->base_addr; - - switch(lp->media) { - case INIT: - if (lp->timeout < 0) { - DISABLE_IRQs; - lp->tx_enable = false; - lp->linkOK = 0; - de4x5_save_skbs(dev); /* Save non transmitted skb's */ - } - if ((next_tick = de4x5_reset_phy(dev)) < 0) { - next_tick &= ~TIMER_CB; - } else { - if (lp->useSROM) { - if (srom_map_media(dev) < 0) { - lp->tcount++; - return next_tick; - } - srom_exec(dev, lp->phy[lp->active].gep); - if (lp->infoblock_media == ANS) { - ana = lp->phy[lp->active].ana | MII_ANA_CSMA; - mii_wr(ana, MII_ANA, lp->phy[lp->active].addr, DE4X5_MII); - } - } else { - lp->tmp = MII_SR_ASSC; /* Fake out the MII speed set */ - SET_10Mb; - if (lp->autosense == _100Mb) { - lp->media = _100Mb; - } else if (lp->autosense == _10Mb) { - lp->media = _10Mb; - } else if ((lp->autosense == AUTO) && - ((sr=is_anc_capable(dev)) & MII_SR_ANC)) { - ana = (((sr >> 6) & MII_ANA_TAF) | MII_ANA_CSMA); - ana &= (lp->fdx ? ~0 : ~MII_ANA_FDAM); - mii_wr(ana, MII_ANA, lp->phy[lp->active].addr, DE4X5_MII); - lp->media = ANS; - } else if (lp->autosense == AUTO) { - lp->media = SPD_DET; - } else if (is_spd_100(dev) && is_100_up(dev)) { - lp->media = _100Mb; - } else { - lp->media = NC; - } - } - lp->local_state = 0; - next_tick = dc21140m_autoconf(dev); - } - break; - - case ANS: - switch (lp->local_state) { - case 0: - if (lp->timeout < 0) { - mii_wr(MII_CR_ASSE | MII_CR_RAN, MII_CR, lp->phy[lp->active].addr, DE4X5_MII); - } - cr = test_mii_reg(dev, MII_CR, MII_CR_RAN, false, 500); - if (cr < 0) { - next_tick = cr & ~TIMER_CB; - } else { - if (cr) { - lp->local_state = 0; - lp->media = SPD_DET; - } else { - lp->local_state++; - } - next_tick = dc21140m_autoconf(dev); - } - break; - - case 1: - if ((sr=test_mii_reg(dev, MII_SR, MII_SR_ASSC, true, 2000)) < 0) { - next_tick = sr & ~TIMER_CB; - } else { - lp->media = SPD_DET; - lp->local_state = 0; - if (sr) { /* Success! */ - lp->tmp = MII_SR_ASSC; - anlpa = mii_rd(MII_ANLPA, lp->phy[lp->active].addr, DE4X5_MII); - ana = mii_rd(MII_ANA, lp->phy[lp->active].addr, DE4X5_MII); - if (!(anlpa & MII_ANLPA_RF) && - (cap = anlpa & MII_ANLPA_TAF & ana)) { - if (cap & MII_ANA_100M) { - lp->fdx = (ana & anlpa & MII_ANA_FDAM & MII_ANA_100M) != 0; - lp->media = _100Mb; - } else if (cap & MII_ANA_10M) { - lp->fdx = (ana & anlpa & MII_ANA_FDAM & MII_ANA_10M) != 0; - - lp->media = _10Mb; - } - } - } /* Auto Negotiation failed to finish */ - next_tick = dc21140m_autoconf(dev); - } /* Auto Negotiation failed to start */ - break; - } - break; - - case SPD_DET: /* Choose 10Mb/s or 100Mb/s */ - if (lp->timeout < 0) { - lp->tmp = (lp->phy[lp->active].id ? MII_SR_LKS : - (~gep_rd(dev) & GEP_LNP)); - SET_100Mb_PDET; - } - if ((slnk = test_for_100Mb(dev, 6500)) < 0) { - next_tick = slnk & ~TIMER_CB; - } else { - if (is_spd_100(dev) && is_100_up(dev)) { - lp->media = _100Mb; - } else if ((!is_spd_100(dev) && (is_10_up(dev) & lp->tmp))) { - lp->media = _10Mb; - } else { - lp->media = NC; - } - next_tick = dc21140m_autoconf(dev); - } - break; - - case _100Mb: /* Set 100Mb/s */ - next_tick = 3000; - if (!lp->tx_enable) { - SET_100Mb; - de4x5_init_connection(dev); - } else { - if (!lp->linkOK && (lp->autosense == AUTO)) { - if (!is_100_up(dev) || (!lp->useSROM && !is_spd_100(dev))) { - lp->media = INIT; - lp->tcount++; - next_tick = DE4X5_AUTOSENSE_MS; - } - } - } - break; - - case BNC: - case AUI: - case _10Mb: /* Set 10Mb/s */ - next_tick = 3000; - if (!lp->tx_enable) { - SET_10Mb; - de4x5_init_connection(dev); - } else { - if (!lp->linkOK && (lp->autosense == AUTO)) { - if (!is_10_up(dev) || (!lp->useSROM && is_spd_100(dev))) { - lp->media = INIT; - lp->tcount++; - next_tick = DE4X5_AUTOSENSE_MS; - } - } - } - break; - - case NC: - if (lp->media != lp->c_media) { - de4x5_dbg_media(dev); - lp->c_media = lp->media; - } - lp->media = INIT; - lp->tx_enable = false; - break; - } - - return next_tick; -} - -/* -** This routine may be merged into dc21140m_autoconf() sometime as I'm -** changing how I figure out the media - but trying to keep it backwards -** compatible with the de500-xa and de500-aa. -** Whether it's BNC, AUI, SYM or MII is sorted out in the infoblock -** functions and set during de4x5_mac_port() and/or de4x5_reset_phy(). -** This routine just has to figure out whether 10Mb/s or 100Mb/s is -** active. -** When autonegotiation is working, the ANS part searches the SROM for -** the highest common speed (TP) link that both can run and if that can -** be full duplex. That infoblock is executed and then the link speed set. -** -** Only _10Mb and _100Mb are tested here. -*/ -static int -dc2114x_autoconf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 cr, anlpa, ana, cap, irqs, irq_mask, imr, omr, slnk, sr, sts; - int next_tick = DE4X5_AUTOSENSE_MS; - - switch (lp->media) { - case INIT: - if (lp->timeout < 0) { - DISABLE_IRQs; - lp->tx_enable = false; - lp->linkOK = 0; - lp->timeout = -1; - de4x5_save_skbs(dev); /* Save non transmitted skb's */ - if (lp->params.autosense & ~AUTO) { - srom_map_media(dev); /* Fixed media requested */ - if (lp->media != lp->params.autosense) { - lp->tcount++; - lp->media = INIT; - return next_tick; - } - lp->media = INIT; - } - } - if ((next_tick = de4x5_reset_phy(dev)) < 0) { - next_tick &= ~TIMER_CB; - } else { - if (lp->autosense == _100Mb) { - lp->media = _100Mb; - } else if (lp->autosense == _10Mb) { - lp->media = _10Mb; - } else if (lp->autosense == TP) { - lp->media = TP; - } else if (lp->autosense == BNC) { - lp->media = BNC; - } else if (lp->autosense == AUI) { - lp->media = AUI; - } else { - lp->media = SPD_DET; - if ((lp->infoblock_media == ANS) && - ((sr=is_anc_capable(dev)) & MII_SR_ANC)) { - ana = (((sr >> 6) & MII_ANA_TAF) | MII_ANA_CSMA); - ana &= (lp->fdx ? ~0 : ~MII_ANA_FDAM); - mii_wr(ana, MII_ANA, lp->phy[lp->active].addr, DE4X5_MII); - lp->media = ANS; - } - } - lp->local_state = 0; - next_tick = dc2114x_autoconf(dev); - } - break; - - case ANS: - switch (lp->local_state) { - case 0: - if (lp->timeout < 0) { - mii_wr(MII_CR_ASSE | MII_CR_RAN, MII_CR, lp->phy[lp->active].addr, DE4X5_MII); - } - cr = test_mii_reg(dev, MII_CR, MII_CR_RAN, false, 500); - if (cr < 0) { - next_tick = cr & ~TIMER_CB; - } else { - if (cr) { - lp->local_state = 0; - lp->media = SPD_DET; - } else { - lp->local_state++; - } - next_tick = dc2114x_autoconf(dev); - } - break; - - case 1: - sr = test_mii_reg(dev, MII_SR, MII_SR_ASSC, true, 2000); - if (sr < 0) { - next_tick = sr & ~TIMER_CB; - } else { - lp->media = SPD_DET; - lp->local_state = 0; - if (sr) { /* Success! */ - lp->tmp = MII_SR_ASSC; - anlpa = mii_rd(MII_ANLPA, lp->phy[lp->active].addr, DE4X5_MII); - ana = mii_rd(MII_ANA, lp->phy[lp->active].addr, DE4X5_MII); - if (!(anlpa & MII_ANLPA_RF) && - (cap = anlpa & MII_ANLPA_TAF & ana)) { - if (cap & MII_ANA_100M) { - lp->fdx = (ana & anlpa & MII_ANA_FDAM & MII_ANA_100M) != 0; - lp->media = _100Mb; - } else if (cap & MII_ANA_10M) { - lp->fdx = (ana & anlpa & MII_ANA_FDAM & MII_ANA_10M) != 0; - lp->media = _10Mb; - } - } - } /* Auto Negotiation failed to finish */ - next_tick = dc2114x_autoconf(dev); - } /* Auto Negotiation failed to start */ - break; - } - break; - - case AUI: - if (!lp->tx_enable) { - if (lp->timeout < 0) { - omr = inl(DE4X5_OMR); /* Set up half duplex for AUI */ - outl(omr & ~OMR_FDX, DE4X5_OMR); - } - irqs = 0; - irq_mask = 0; - sts = test_media(dev,irqs, irq_mask, 0, 0, 0, 1000); - if (sts < 0) { - next_tick = sts & ~TIMER_CB; - } else { - if (!(inl(DE4X5_SISR) & SISR_SRA) && (lp->autosense == AUTO)) { - lp->media = BNC; - next_tick = dc2114x_autoconf(dev); - } else { - lp->local_state = 1; - de4x5_init_connection(dev); - } - } - } else if (!lp->linkOK && (lp->autosense == AUTO)) { - lp->media = AUI_SUSPECT; - next_tick = 3000; - } - break; - - case AUI_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, AUI, ping_media, dc2114x_autoconf); - break; - - case BNC: - switch (lp->local_state) { - case 0: - if (lp->timeout < 0) { - omr = inl(DE4X5_OMR); /* Set up half duplex for BNC */ - outl(omr & ~OMR_FDX, DE4X5_OMR); - } - irqs = 0; - irq_mask = 0; - sts = test_media(dev,irqs, irq_mask, 0, 0, 0, 1000); - if (sts < 0) { - next_tick = sts & ~TIMER_CB; - } else { - lp->local_state++; /* Ensure media connected */ - next_tick = dc2114x_autoconf(dev); - } - break; - - case 1: - if (!lp->tx_enable) { - if ((sts = ping_media(dev, 3000)) < 0) { - next_tick = sts & ~TIMER_CB; - } else { - if (sts) { - lp->local_state = 0; - lp->tcount++; - lp->media = INIT; - } else { - de4x5_init_connection(dev); - } - } - } else if (!lp->linkOK && (lp->autosense == AUTO)) { - lp->media = BNC_SUSPECT; - next_tick = 3000; - } - break; - } - break; - - case BNC_SUSPECT: - next_tick = de4x5_suspect_state(dev, 1000, BNC, ping_media, dc2114x_autoconf); - break; - - case SPD_DET: /* Choose 10Mb/s or 100Mb/s */ - if (srom_map_media(dev) < 0) { - lp->tcount++; - lp->media = INIT; - return next_tick; - } - if (lp->media == _100Mb) { - if ((slnk = test_for_100Mb(dev, 6500)) < 0) { - lp->media = SPD_DET; - return slnk & ~TIMER_CB; - } - } else { - if (wait_for_link(dev) < 0) { - lp->media = SPD_DET; - return PDET_LINK_WAIT; - } - } - if (lp->media == ANS) { /* Do MII parallel detection */ - if (is_spd_100(dev)) { - lp->media = _100Mb; - } else { - lp->media = _10Mb; - } - next_tick = dc2114x_autoconf(dev); - } else if (((lp->media == _100Mb) && is_100_up(dev)) || - (((lp->media == _10Mb) || (lp->media == TP) || - (lp->media == BNC) || (lp->media == AUI)) && - is_10_up(dev))) { - next_tick = dc2114x_autoconf(dev); - } else { - lp->tcount++; - lp->media = INIT; - } - break; - - case _10Mb: - next_tick = 3000; - if (!lp->tx_enable) { - SET_10Mb; - de4x5_init_connection(dev); - } else { - if (!lp->linkOK && (lp->autosense == AUTO)) { - if (!is_10_up(dev) || (!lp->useSROM && is_spd_100(dev))) { - lp->media = INIT; - lp->tcount++; - next_tick = DE4X5_AUTOSENSE_MS; - } - } - } - break; - - case _100Mb: - next_tick = 3000; - if (!lp->tx_enable) { - SET_100Mb; - de4x5_init_connection(dev); - } else { - if (!lp->linkOK && (lp->autosense == AUTO)) { - if (!is_100_up(dev) || (!lp->useSROM && !is_spd_100(dev))) { - lp->media = INIT; - lp->tcount++; - next_tick = DE4X5_AUTOSENSE_MS; - } - } - } - break; - - default: - lp->tcount++; -printk("Huh?: media:%02x\n", lp->media); - lp->media = INIT; - break; - } - - return next_tick; -} - -static int -srom_autoconf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - - return lp->infoleaf_fn(dev); -} - -/* -** This mapping keeps the original media codes and FDX flag unchanged. -** While it isn't strictly necessary, it helps me for the moment... -** The early return avoids a media state / SROM media space clash. -*/ -static int -srom_map_media(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - - lp->fdx = false; - if (lp->infoblock_media == lp->media) - return 0; - - switch(lp->infoblock_media) { - case SROM_10BASETF: - if (!lp->params.fdx) return -1; - lp->fdx = true; - fallthrough; - - case SROM_10BASET: - if (lp->params.fdx && !lp->fdx) return -1; - if ((lp->chipset == DC21140) || ((lp->chipset & ~0x00ff) == DC2114x)) { - lp->media = _10Mb; - } else { - lp->media = TP; - } - break; - - case SROM_10BASE2: - lp->media = BNC; - break; - - case SROM_10BASE5: - lp->media = AUI; - break; - - case SROM_100BASETF: - if (!lp->params.fdx) return -1; - lp->fdx = true; - fallthrough; - - case SROM_100BASET: - if (lp->params.fdx && !lp->fdx) return -1; - lp->media = _100Mb; - break; - - case SROM_100BASET4: - lp->media = _100Mb; - break; - - case SROM_100BASEFF: - if (!lp->params.fdx) return -1; - lp->fdx = true; - fallthrough; - - case SROM_100BASEF: - if (lp->params.fdx && !lp->fdx) return -1; - lp->media = _100Mb; - break; - - case ANS: - lp->media = ANS; - lp->fdx = lp->params.fdx; - break; - - default: - printk("%s: Bad media code [%d] detected in SROM!\n", dev->name, - lp->infoblock_media); - return -1; - } - - return 0; -} - -static void -de4x5_init_connection(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - u_long flags = 0; - - if (lp->media != lp->c_media) { - de4x5_dbg_media(dev); - lp->c_media = lp->media; /* Stop scrolling media messages */ - } - - spin_lock_irqsave(&lp->lock, flags); - de4x5_rst_desc_ring(dev); - de4x5_setup_intr(dev); - lp->tx_enable = true; - spin_unlock_irqrestore(&lp->lock, flags); - outl(POLL_DEMAND, DE4X5_TPD); - - netif_wake_queue(dev); -} - -/* -** General PHY reset function. Some MII devices don't reset correctly -** since their MII address pins can float at voltages that are dependent -** on the signal pin use. Do a double reset to ensure a reset. -*/ -static int -de4x5_reset_phy(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int next_tick = 0; - - if ((lp->useSROM) || (lp->phy[lp->active].id)) { - if (lp->timeout < 0) { - if (lp->useSROM) { - if (lp->phy[lp->active].rst) { - srom_exec(dev, lp->phy[lp->active].rst); - srom_exec(dev, lp->phy[lp->active].rst); - } else if (lp->rst) { /* Type 5 infoblock reset */ - srom_exec(dev, lp->rst); - srom_exec(dev, lp->rst); - } - } else { - PHY_HARD_RESET; - } - if (lp->useMII) { - mii_wr(MII_CR_RST, MII_CR, lp->phy[lp->active].addr, DE4X5_MII); - } - } - if (lp->useMII) { - next_tick = test_mii_reg(dev, MII_CR, MII_CR_RST, false, 500); - } - } else if (lp->chipset == DC21140) { - PHY_HARD_RESET; - } - - return next_tick; -} - -static int -test_media(struct net_device *dev, s32 irqs, s32 irq_mask, s32 csr13, s32 csr14, s32 csr15, s32 msec) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 sts, csr12; - - if (lp->timeout < 0) { - lp->timeout = msec/100; - if (!lp->useSROM) { /* Already done if by SROM, else dc2104[01] */ - reset_init_sia(dev, csr13, csr14, csr15); - } - - /* set up the interrupt mask */ - outl(irq_mask, DE4X5_IMR); - - /* clear all pending interrupts */ - sts = inl(DE4X5_STS); - outl(sts, DE4X5_STS); - - /* clear csr12 NRA and SRA bits */ - if ((lp->chipset == DC21041) || lp->useSROM) { - csr12 = inl(DE4X5_SISR); - outl(csr12, DE4X5_SISR); - } - } - - sts = inl(DE4X5_STS) & ~TIMER_CB; - - if (!(sts & irqs) && --lp->timeout) { - sts = 100 | TIMER_CB; - } else { - lp->timeout = -1; - } - - return sts; -} - -static int -test_tp(struct net_device *dev, s32 msec) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int sisr; - - if (lp->timeout < 0) { - lp->timeout = msec/100; - } - - sisr = (inl(DE4X5_SISR) & ~TIMER_CB) & (SISR_LKF | SISR_NCR); - - if (sisr && --lp->timeout) { - sisr = 100 | TIMER_CB; - } else { - lp->timeout = -1; - } - - return sisr; -} - -/* -** Samples the 100Mb Link State Signal. The sample interval is important -** because too fast a rate can give erroneous results and confuse the -** speed sense algorithm. -*/ -#define SAMPLE_INTERVAL 500 /* ms */ -#define SAMPLE_DELAY 2000 /* ms */ -static int -test_for_100Mb(struct net_device *dev, int msec) -{ - struct de4x5_private *lp = netdev_priv(dev); - int gep = 0, ret = ((lp->chipset & ~0x00ff)==DC2114x? -1 :GEP_SLNK); - - if (lp->timeout < 0) { - if ((msec/SAMPLE_INTERVAL) <= 0) return 0; - if (msec > SAMPLE_DELAY) { - lp->timeout = (msec - SAMPLE_DELAY)/SAMPLE_INTERVAL; - gep = SAMPLE_DELAY | TIMER_CB; - return gep; - } else { - lp->timeout = msec/SAMPLE_INTERVAL; - } - } - - if (lp->phy[lp->active].id || lp->useSROM) { - gep = is_100_up(dev) | is_spd_100(dev); - } else { - gep = (~gep_rd(dev) & (GEP_SLNK | GEP_LNP)); - } - if (!(gep & ret) && --lp->timeout) { - gep = SAMPLE_INTERVAL | TIMER_CB; - } else { - lp->timeout = -1; - } - - return gep; -} - -static int -wait_for_link(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - - if (lp->timeout < 0) { - lp->timeout = 1; - } - - if (lp->timeout--) { - return TIMER_CB; - } else { - lp->timeout = -1; - } - - return 0; -} - -/* -** -** -*/ -static int -test_mii_reg(struct net_device *dev, int reg, int mask, bool pol, long msec) -{ - struct de4x5_private *lp = netdev_priv(dev); - int test; - u_long iobase = dev->base_addr; - - if (lp->timeout < 0) { - lp->timeout = msec/100; - } - - reg = mii_rd((u_char)reg, lp->phy[lp->active].addr, DE4X5_MII) & mask; - test = (reg ^ (pol ? ~0 : 0)) & mask; - - if (test && --lp->timeout) { - reg = 100 | TIMER_CB; - } else { - lp->timeout = -1; - } - - return reg; -} - -static int -is_spd_100(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int spd; - - if (lp->useMII) { - spd = mii_rd(lp->phy[lp->active].spd.reg, lp->phy[lp->active].addr, DE4X5_MII); - spd = ~(spd ^ lp->phy[lp->active].spd.value); - spd &= lp->phy[lp->active].spd.mask; - } else if (!lp->useSROM) { /* de500-xa */ - spd = ((~gep_rd(dev)) & GEP_SLNK); - } else { - if ((lp->ibn == 2) || !lp->asBitValid) - return (lp->chipset == DC21143) ? (~inl(DE4X5_SISR)&SISR_LS100) : 0; - - spd = (lp->asBitValid & (lp->asPolarity ^ (gep_rd(dev) & lp->asBit))) | - (lp->linkOK & ~lp->asBitValid); - } - - return spd; -} - -static int -is_100_up(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - if (lp->useMII) { - /* Double read for sticky bits & temporary drops */ - mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII); - return mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII) & MII_SR_LKS; - } else if (!lp->useSROM) { /* de500-xa */ - return (~gep_rd(dev)) & GEP_SLNK; - } else { - if ((lp->ibn == 2) || !lp->asBitValid) - return (lp->chipset == DC21143) ? (~inl(DE4X5_SISR)&SISR_LS100) : 0; - - return (lp->asBitValid&(lp->asPolarity^(gep_rd(dev)&lp->asBit))) | - (lp->linkOK & ~lp->asBitValid); - } -} - -static int -is_10_up(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - if (lp->useMII) { - /* Double read for sticky bits & temporary drops */ - mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII); - return mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII) & MII_SR_LKS; - } else if (!lp->useSROM) { /* de500-xa */ - return (~gep_rd(dev)) & GEP_LNP; - } else { - if ((lp->ibn == 2) || !lp->asBitValid) - return ((lp->chipset & ~0x00ff) == DC2114x) ? - (~inl(DE4X5_SISR)&SISR_LS10): - 0; - - return (lp->asBitValid&(lp->asPolarity^(gep_rd(dev)&lp->asBit))) | - (lp->linkOK & ~lp->asBitValid); - } -} - -static int -is_anc_capable(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - if (lp->phy[lp->active].id && (!lp->useSROM || lp->useMII)) { - return mii_rd(MII_SR, lp->phy[lp->active].addr, DE4X5_MII); - } else if ((lp->chipset & ~0x00ff) == DC2114x) { - return (inl(DE4X5_SISR) & SISR_LPN) >> 12; - } else { - return 0; - } -} - -/* -** Send a packet onto the media and watch for send errors that indicate the -** media is bad or unconnected. -*/ -static int -ping_media(struct net_device *dev, int msec) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int sisr; - - if (lp->timeout < 0) { - lp->timeout = msec/100; - - lp->tmp = lp->tx_new; /* Remember the ring position */ - load_packet(dev, lp->frame, TD_LS | TD_FS | sizeof(lp->frame), (struct sk_buff *)1); - lp->tx_new = (lp->tx_new + 1) % lp->txRingSize; - outl(POLL_DEMAND, DE4X5_TPD); - } - - sisr = inl(DE4X5_SISR); - - if ((!(sisr & SISR_NCR)) && - ((s32)le32_to_cpu(lp->tx_ring[lp->tmp].status) < 0) && - (--lp->timeout)) { - sisr = 100 | TIMER_CB; - } else { - if ((!(sisr & SISR_NCR)) && - !(le32_to_cpu(lp->tx_ring[lp->tmp].status) & (T_OWN | TD_ES)) && - lp->timeout) { - sisr = 0; - } else { - sisr = 1; - } - lp->timeout = -1; - } - - return sisr; -} - -/* -** This function does 2 things: on Intels it kmalloc's another buffer to -** replace the one about to be passed up. On Alpha's it kmallocs a buffer -** into which the packet is copied. -*/ -static struct sk_buff * -de4x5_alloc_rx_buff(struct net_device *dev, int index, int len) -{ - struct de4x5_private *lp = netdev_priv(dev); - struct sk_buff *p; - -#if !defined(__alpha__) && !defined(__powerpc__) && !defined(CONFIG_SPARC) && !defined(DE4X5_DO_MEMCPY) - struct sk_buff *ret; - u_long i=0, tmp; - - p = netdev_alloc_skb(dev, IEEE802_3_SZ + DE4X5_ALIGN + 2); - if (!p) return NULL; - - tmp = virt_to_bus(p->data); - i = ((tmp + DE4X5_ALIGN) & ~DE4X5_ALIGN) - tmp; - skb_reserve(p, i); - lp->rx_ring[index].buf = cpu_to_le32(tmp + i); - - ret = lp->rx_skb[index]; - lp->rx_skb[index] = p; - - if ((u_long) ret > 1) { - skb_put(ret, len); - } - - return ret; - -#else - if (lp->state != OPEN) return (struct sk_buff *)1; /* Fake out the open */ - - p = netdev_alloc_skb(dev, len + 2); - if (!p) return NULL; - - skb_reserve(p, 2); /* Align */ - if (index < lp->rx_old) { /* Wrapped buffer */ - short tlen = (lp->rxRingSize - lp->rx_old) * RX_BUFF_SZ; - skb_put_data(p, lp->rx_bufs + lp->rx_old * RX_BUFF_SZ, tlen); - skb_put_data(p, lp->rx_bufs, len - tlen); - } else { /* Linear buffer */ - skb_put_data(p, lp->rx_bufs + lp->rx_old * RX_BUFF_SZ, len); - } - - return p; -#endif -} - -static void -de4x5_free_rx_buffs(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - int i; - - for (i=0; i<lp->rxRingSize; i++) { - if ((u_long) lp->rx_skb[i] > 1) { - dev_kfree_skb(lp->rx_skb[i]); - } - lp->rx_ring[i].status = 0; - lp->rx_skb[i] = (struct sk_buff *)1; /* Dummy entry */ - } -} - -static void -de4x5_free_tx_buffs(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - int i; - - for (i=0; i<lp->txRingSize; i++) { - if (lp->tx_skb[i]) - de4x5_free_tx_buff(lp, i); - lp->tx_ring[i].status = 0; - } - - /* Unload the locally queued packets */ - __skb_queue_purge(&lp->cache.queue); -} - -/* -** When a user pulls a connection, the DECchip can end up in a -** 'running - waiting for end of transmission' state. This means that we -** have to perform a chip soft reset to ensure that we can synchronize -** the hardware and software and make any media probes using a loopback -** packet meaningful. -*/ -static void -de4x5_save_skbs(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 omr; - - if (!lp->cache.save_cnt) { - STOP_DE4X5; - de4x5_tx(dev); /* Flush any sent skb's */ - de4x5_free_tx_buffs(dev); - de4x5_cache_state(dev, DE4X5_SAVE_STATE); - de4x5_sw_reset(dev); - de4x5_cache_state(dev, DE4X5_RESTORE_STATE); - lp->cache.save_cnt++; - START_DE4X5; - } -} - -static void -de4x5_rst_desc_ring(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int i; - s32 omr; - - if (lp->cache.save_cnt) { - STOP_DE4X5; - outl(lp->dma_rings, DE4X5_RRBA); - outl(lp->dma_rings + NUM_RX_DESC * sizeof(struct de4x5_desc), - DE4X5_TRBA); - - lp->rx_new = lp->rx_old = 0; - lp->tx_new = lp->tx_old = 0; - - for (i = 0; i < lp->rxRingSize; i++) { - lp->rx_ring[i].status = cpu_to_le32(R_OWN); - } - - for (i = 0; i < lp->txRingSize; i++) { - lp->tx_ring[i].status = cpu_to_le32(0); - } - - barrier(); - lp->cache.save_cnt--; - START_DE4X5; - } -} - -static void -de4x5_cache_state(struct net_device *dev, int flag) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - switch(flag) { - case DE4X5_SAVE_STATE: - lp->cache.csr0 = inl(DE4X5_BMR); - lp->cache.csr6 = (inl(DE4X5_OMR) & ~(OMR_ST | OMR_SR)); - lp->cache.csr7 = inl(DE4X5_IMR); - break; - - case DE4X5_RESTORE_STATE: - outl(lp->cache.csr0, DE4X5_BMR); - outl(lp->cache.csr6, DE4X5_OMR); - outl(lp->cache.csr7, DE4X5_IMR); - if (lp->chipset == DC21140) { - gep_wr(lp->cache.gepc, dev); - gep_wr(lp->cache.gep, dev); - } else { - reset_init_sia(dev, lp->cache.csr13, lp->cache.csr14, - lp->cache.csr15); - } - break; - } -} - -static void -de4x5_put_cache(struct net_device *dev, struct sk_buff *skb) -{ - struct de4x5_private *lp = netdev_priv(dev); - - __skb_queue_tail(&lp->cache.queue, skb); -} - -static void -de4x5_putb_cache(struct net_device *dev, struct sk_buff *skb) -{ - struct de4x5_private *lp = netdev_priv(dev); - - __skb_queue_head(&lp->cache.queue, skb); -} - -static struct sk_buff * -de4x5_get_cache(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - - return __skb_dequeue(&lp->cache.queue); -} - -/* -** Check the Auto Negotiation State. Return OK when a link pass interrupt -** is received and the auto-negotiation status is NWAY OK. -*/ -static int -test_ans(struct net_device *dev, s32 irqs, s32 irq_mask, s32 msec) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 sts, ans; - - if (lp->timeout < 0) { - lp->timeout = msec/100; - outl(irq_mask, DE4X5_IMR); - - /* clear all pending interrupts */ - sts = inl(DE4X5_STS); - outl(sts, DE4X5_STS); - } - - ans = inl(DE4X5_SISR) & SISR_ANS; - sts = inl(DE4X5_STS) & ~TIMER_CB; - - if (!(sts & irqs) && (ans ^ ANS_NWOK) && --lp->timeout) { - sts = 100 | TIMER_CB; - } else { - lp->timeout = -1; - } - - return sts; -} - -static void -de4x5_setup_intr(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 imr, sts; - - if (inl(DE4X5_OMR) & OMR_SR) { /* Only unmask if TX/RX is enabled */ - imr = 0; - UNMASK_IRQs; - sts = inl(DE4X5_STS); /* Reset any pending (stale) interrupts */ - outl(sts, DE4X5_STS); - ENABLE_IRQs; - } -} - -/* -** -*/ -static void -reset_init_sia(struct net_device *dev, s32 csr13, s32 csr14, s32 csr15) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - RESET_SIA; - if (lp->useSROM) { - if (lp->ibn == 3) { - srom_exec(dev, lp->phy[lp->active].rst); - srom_exec(dev, lp->phy[lp->active].gep); - outl(1, DE4X5_SICR); - return; - } else { - csr15 = lp->cache.csr15; - csr14 = lp->cache.csr14; - csr13 = lp->cache.csr13; - outl(csr15 | lp->cache.gepc, DE4X5_SIGR); - outl(csr15 | lp->cache.gep, DE4X5_SIGR); - } - } else { - outl(csr15, DE4X5_SIGR); - } - outl(csr14, DE4X5_STRR); - outl(csr13, DE4X5_SICR); - - mdelay(10); -} - -/* -** Create a loopback ethernet packet -*/ -static void -create_packet(struct net_device *dev, char *frame, int len) -{ - int i; - char *buf = frame; - - for (i=0; i<ETH_ALEN; i++) { /* Use this source address */ - *buf++ = dev->dev_addr[i]; - } - for (i=0; i<ETH_ALEN; i++) { /* Use this destination address */ - *buf++ = dev->dev_addr[i]; - } - - *buf++ = 0; /* Packet length (2 bytes) */ - *buf++ = 1; -} - -/* -** Look for a particular board name in the EISA configuration space -*/ -static int -EISA_signature(char *name, struct device *device) -{ - int i, status = 0, siglen = ARRAY_SIZE(de4x5_signatures); - struct eisa_device *edev; - - *name = '\0'; - edev = to_eisa_device (device); - i = edev->id.driver_data; - - if (i >= 0 && i < siglen) { - strcpy (name, de4x5_signatures[i]); - status = 1; - } - - return status; /* return the device name string */ -} - -/* -** Look for a particular board name in the PCI configuration space -*/ -static void -PCI_signature(char *name, struct de4x5_private *lp) -{ - int i, siglen = ARRAY_SIZE(de4x5_signatures); - - if (lp->chipset == DC21040) { - strcpy(name, "DE434/5"); - return; - } else { /* Search for a DEC name in the SROM */ - int tmp = *((char *)&lp->srom + 19) * 3; - strncpy(name, (char *)&lp->srom + 26 + tmp, 8); - } - name[8] = '\0'; - for (i=0; i<siglen; i++) { - if (strstr(name,de4x5_signatures[i])!=NULL) break; - } - if (i == siglen) { - if (dec_only) { - *name = '\0'; - } else { /* Use chip name to avoid confusion */ - strcpy(name, (((lp->chipset == DC21040) ? "DC21040" : - ((lp->chipset == DC21041) ? "DC21041" : - ((lp->chipset == DC21140) ? "DC21140" : - ((lp->chipset == DC21142) ? "DC21142" : - ((lp->chipset == DC21143) ? "DC21143" : "UNKNOWN" - ))))))); - } - if (lp->chipset != DC21041) { - lp->useSROM = true; /* card is not recognisably DEC */ - } - } else if ((lp->chipset & ~0x00ff) == DC2114x) { - lp->useSROM = true; - } -} - -/* -** Set up the Ethernet PROM counter to the start of the Ethernet address on -** the DC21040, else read the SROM for the other chips. -** The SROM may not be present in a multi-MAC card, so first read the -** MAC address and check for a bad address. If there is a bad one then exit -** immediately with the prior srom contents intact (the h/w address will -** be fixed up later). -*/ -static void -DevicePresent(struct net_device *dev, u_long aprom_addr) -{ - int i, j=0; - struct de4x5_private *lp = netdev_priv(dev); - - if (lp->chipset == DC21040) { - if (lp->bus == EISA) { - enet_addr_rst(aprom_addr); /* Reset Ethernet Address ROM Pointer */ - } else { - outl(0, aprom_addr); /* Reset Ethernet Address ROM Pointer */ - } - } else { /* Read new srom */ - u_short tmp; - __le16 *p = (__le16 *)((char *)&lp->srom + SROM_HWADD); - for (i=0; i<(ETH_ALEN>>1); i++) { - tmp = srom_rd(aprom_addr, (SROM_HWADD>>1) + i); - j += tmp; /* for check for 0:0:0:0:0:0 or ff:ff:ff:ff:ff:ff */ - *p = cpu_to_le16(tmp); - } - if (j == 0 || j == 3 * 0xffff) { - /* could get 0 only from all-0 and 3 * 0xffff only from all-1 */ - return; - } - - p = (__le16 *)&lp->srom; - for (i=0; i<(sizeof(struct de4x5_srom)>>1); i++) { - tmp = srom_rd(aprom_addr, i); - *p++ = cpu_to_le16(tmp); - } - de4x5_dbg_srom(&lp->srom); - } -} - -/* -** Since the write on the Enet PROM register doesn't seem to reset the PROM -** pointer correctly (at least on my DE425 EISA card), this routine should do -** it...from depca.c. -*/ -static void -enet_addr_rst(u_long aprom_addr) -{ - union { - struct { - u32 a; - u32 b; - } llsig; - char Sig[sizeof(u32) << 1]; - } dev; - short sigLength=0; - s8 data; - int i, j; - - dev.llsig.a = ETH_PROM_SIG; - dev.llsig.b = ETH_PROM_SIG; - sigLength = sizeof(u32) << 1; - - for (i=0,j=0;j<sigLength && i<PROBE_LENGTH+sigLength-1;i++) { - data = inb(aprom_addr); - if (dev.Sig[j] == data) { /* track signature */ - j++; - } else { /* lost signature; begin search again */ - if (data == dev.Sig[0]) { /* rare case.... */ - j=1; - } else { - j=0; - } - } - } -} - -/* -** For the bad status case and no SROM, then add one to the previous -** address. However, need to add one backwards in case we have 0xff -** as one or more of the bytes. Only the last 3 bytes should be checked -** as the first three are invariant - assigned to an organisation. -*/ -static int -get_hw_addr(struct net_device *dev) -{ - u_long iobase = dev->base_addr; - int broken, i, k, tmp, status = 0; - u_short j,chksum; - struct de4x5_private *lp = netdev_priv(dev); - u8 addr[ETH_ALEN]; - - broken = de4x5_bad_srom(lp); - - for (i=0,k=0,j=0;j<3;j++) { - k <<= 1; - if (k > 0xffff) k-=0xffff; - - if (lp->bus == PCI) { - if (lp->chipset == DC21040) { - while ((tmp = inl(DE4X5_APROM)) < 0); - k += (u_char) tmp; - addr[i++] = (u_char) tmp; - while ((tmp = inl(DE4X5_APROM)) < 0); - k += (u_short) (tmp << 8); - addr[i++] = (u_char) tmp; - } else if (!broken) { - addr[i] = (u_char) lp->srom.ieee_addr[i]; i++; - addr[i] = (u_char) lp->srom.ieee_addr[i]; i++; - } else if ((broken == SMC) || (broken == ACCTON)) { - addr[i] = *((u_char *)&lp->srom + i); i++; - addr[i] = *((u_char *)&lp->srom + i); i++; - } - } else { - k += (u_char) (tmp = inb(EISA_APROM)); - addr[i++] = (u_char) tmp; - k += (u_short) ((tmp = inb(EISA_APROM)) << 8); - addr[i++] = (u_char) tmp; - } - - if (k > 0xffff) k-=0xffff; - } - if (k == 0xffff) k=0; - - eth_hw_addr_set(dev, addr); - - if (lp->bus == PCI) { - if (lp->chipset == DC21040) { - while ((tmp = inl(DE4X5_APROM)) < 0); - chksum = (u_char) tmp; - while ((tmp = inl(DE4X5_APROM)) < 0); - chksum |= (u_short) (tmp << 8); - if ((k != chksum) && (dec_only)) status = -1; - } - } else { - chksum = (u_char) inb(EISA_APROM); - chksum |= (u_short) (inb(EISA_APROM) << 8); - if ((k != chksum) && (dec_only)) status = -1; - } - - /* If possible, try to fix a broken card - SMC only so far */ - srom_repair(dev, broken); - -#ifdef CONFIG_PPC_PMAC - /* - ** If the address starts with 00 a0, we have to bit-reverse - ** each byte of the address. - */ - if ( machine_is(powermac) && - (dev->dev_addr[0] == 0) && - (dev->dev_addr[1] == 0xa0) ) - { - for (i = 0; i < ETH_ALEN; ++i) - { - int x = dev->dev_addr[i]; - x = ((x & 0xf) << 4) + ((x & 0xf0) >> 4); - x = ((x & 0x33) << 2) + ((x & 0xcc) >> 2); - addr[i] = ((x & 0x55) << 1) + ((x & 0xaa) >> 1); - } - eth_hw_addr_set(dev, addr); - } -#endif /* CONFIG_PPC_PMAC */ - - /* Test for a bad enet address */ - status = test_bad_enet(dev, status); - - return status; -} - -/* -** Test for enet addresses in the first 32 bytes. -*/ -static int -de4x5_bad_srom(struct de4x5_private *lp) -{ - int i, status = 0; - - for (i = 0; i < ARRAY_SIZE(enet_det); i++) { - if (!memcmp(&lp->srom, &enet_det[i], 3) && - !memcmp((char *)&lp->srom+0x10, &enet_det[i], 3)) { - if (i == 0) { - status = SMC; - } else if (i == 1) { - status = ACCTON; - } - break; - } - } - - return status; -} - -static void -srom_repair(struct net_device *dev, int card) -{ - struct de4x5_private *lp = netdev_priv(dev); - - switch(card) { - case SMC: - memset((char *)&lp->srom, 0, sizeof(struct de4x5_srom)); - memcpy(lp->srom.ieee_addr, (char *)dev->dev_addr, ETH_ALEN); - memcpy(lp->srom.info, (char *)&srom_repair_info[SMC-1], 100); - lp->useSROM = true; - break; - } -} - -/* -** Assume that the irq's do not follow the PCI spec - this is seems -** to be true so far (2 for 2). -*/ -static int -test_bad_enet(struct net_device *dev, int status) -{ - struct de4x5_private *lp = netdev_priv(dev); - int i, tmp; - - for (tmp=0,i=0; i<ETH_ALEN; i++) tmp += (u_char)dev->dev_addr[i]; - if ((tmp == 0) || (tmp == 0x5fa)) { - if ((lp->chipset == last.chipset) && - (lp->bus_num == last.bus) && (lp->bus_num > 0)) { - eth_addr_inc(last.addr); - eth_hw_addr_set(dev, last.addr); - - if (!an_exception(lp)) { - dev->irq = last.irq; - } - - status = 0; - } - } else if (!status) { - last.chipset = lp->chipset; - last.bus = lp->bus_num; - last.irq = dev->irq; - for (i=0; i<ETH_ALEN; i++) last.addr[i] = dev->dev_addr[i]; - } - - return status; -} - -/* -** List of board exceptions with correctly wired IRQs -*/ -static int -an_exception(struct de4x5_private *lp) -{ - if ((*(u_short *)lp->srom.sub_vendor_id == 0x00c0) && - (*(u_short *)lp->srom.sub_system_id == 0x95e0)) { - return -1; - } - - return 0; -} - -/* -** SROM Read -*/ -static short -srom_rd(u_long addr, u_char offset) -{ - sendto_srom(SROM_RD | SROM_SR, addr); - - srom_latch(SROM_RD | SROM_SR | DT_CS, addr); - srom_command(SROM_RD | SROM_SR | DT_IN | DT_CS, addr); - srom_address(SROM_RD | SROM_SR | DT_CS, addr, offset); - - return srom_data(SROM_RD | SROM_SR | DT_CS, addr); -} - -static void -srom_latch(u_int command, u_long addr) -{ - sendto_srom(command, addr); - sendto_srom(command | DT_CLK, addr); - sendto_srom(command, addr); -} - -static void -srom_command(u_int command, u_long addr) -{ - srom_latch(command, addr); - srom_latch(command, addr); - srom_latch((command & 0x0000ff00) | DT_CS, addr); -} - -static void -srom_address(u_int command, u_long addr, u_char offset) -{ - int i, a; - - a = offset << 2; - for (i=0; i<6; i++, a <<= 1) { - srom_latch(command | ((a & 0x80) ? DT_IN : 0), addr); - } - udelay(1); - - i = (getfrom_srom(addr) >> 3) & 0x01; -} - -static short -srom_data(u_int command, u_long addr) -{ - int i; - short word = 0; - s32 tmp; - - for (i=0; i<16; i++) { - sendto_srom(command | DT_CLK, addr); - tmp = getfrom_srom(addr); - sendto_srom(command, addr); - - word = (word << 1) | ((tmp >> 3) & 0x01); - } - - sendto_srom(command & 0x0000ff00, addr); - - return word; -} - -/* -static void -srom_busy(u_int command, u_long addr) -{ - sendto_srom((command & 0x0000ff00) | DT_CS, addr); - - while (!((getfrom_srom(addr) >> 3) & 0x01)) { - mdelay(1); - } - - sendto_srom(command & 0x0000ff00, addr); -} -*/ - -static void -sendto_srom(u_int command, u_long addr) -{ - outl(command, addr); - udelay(1); -} - -static int -getfrom_srom(u_long addr) -{ - s32 tmp; - - tmp = inl(addr); - udelay(1); - - return tmp; -} - -static int -srom_infoleaf_info(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - int i, count; - u_char *p; - - /* Find the infoleaf decoder function that matches this chipset */ - for (i=0; i<INFOLEAF_SIZE; i++) { - if (lp->chipset == infoleaf_array[i].chipset) break; - } - if (i == INFOLEAF_SIZE) { - lp->useSROM = false; - printk("%s: Cannot find correct chipset for SROM decoding!\n", - dev->name); - return -ENXIO; - } - - lp->infoleaf_fn = infoleaf_array[i].fn; - - /* Find the information offset that this function should use */ - count = *((u_char *)&lp->srom + 19); - p = (u_char *)&lp->srom + 26; - - if (count > 1) { - for (i=count; i; --i, p+=3) { - if (lp->device == *p) break; - } - if (i == 0) { - lp->useSROM = false; - printk("%s: Cannot find correct PCI device [%d] for SROM decoding!\n", - dev->name, lp->device); - return -ENXIO; - } - } - - lp->infoleaf_offset = get_unaligned_le16(p + 1); - - return 0; -} - -/* -** This routine loads any type 1 or 3 MII info into the mii device -** struct and executes any type 5 code to reset PHY devices for this -** controller. -** The info for the MII devices will be valid since the index used -** will follow the discovery process from MII address 1-31 then 0. -*/ -static void -srom_init(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset; - u_char count; - - p+=2; - if (lp->chipset == DC21140) { - lp->cache.gepc = (*p++ | GEP_CTRL); - gep_wr(lp->cache.gepc, dev); - } - - /* Block count */ - count = *p++; - - /* Jump the infoblocks to find types */ - for (;count; --count) { - if (*p < 128) { - p += COMPACT_LEN; - } else if (*(p+1) == 5) { - type5_infoblock(dev, 1, p); - p += ((*p & BLOCK_LEN) + 1); - } else if (*(p+1) == 4) { - p += ((*p & BLOCK_LEN) + 1); - } else if (*(p+1) == 3) { - type3_infoblock(dev, 1, p); - p += ((*p & BLOCK_LEN) + 1); - } else if (*(p+1) == 2) { - p += ((*p & BLOCK_LEN) + 1); - } else if (*(p+1) == 1) { - type1_infoblock(dev, 1, p); - p += ((*p & BLOCK_LEN) + 1); - } else { - p += ((*p & BLOCK_LEN) + 1); - } - } -} - -/* -** A generic routine that writes GEP control, data and reset information -** to the GEP register (21140) or csr15 GEP portion (2114[23]). -*/ -static void -srom_exec(struct net_device *dev, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - u_char count = (p ? *p++ : 0); - u_short *w = (u_short *)p; - - if (((lp->ibn != 1) && (lp->ibn != 3) && (lp->ibn != 5)) || !count) return; - - if (lp->chipset != DC21140) RESET_SIA; - - while (count--) { - gep_wr(((lp->chipset==DC21140) && (lp->ibn!=5) ? - *p++ : get_unaligned_le16(w++)), dev); - mdelay(2); /* 2ms per action */ - } - - if (lp->chipset != DC21140) { - outl(lp->cache.csr14, DE4X5_STRR); - outl(lp->cache.csr13, DE4X5_SICR); - } -} - -/* -** Basically this function is a NOP since it will never be called, -** unless I implement the DC21041 SROM functions. There's no need -** since the existing code will be satisfactory for all boards. -*/ -static int -dc21041_infoleaf(struct net_device *dev) -{ - return DE4X5_AUTOSENSE_MS; -} - -static int -dc21140_infoleaf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char count = 0; - u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset; - int next_tick = DE4X5_AUTOSENSE_MS; - - /* Read the connection type */ - p+=2; - - /* GEP control */ - lp->cache.gepc = (*p++ | GEP_CTRL); - - /* Block count */ - count = *p++; - - /* Recursively figure out the info blocks */ - if (*p < 128) { - next_tick = dc_infoblock[COMPACT](dev, count, p); - } else { - next_tick = dc_infoblock[*(p+1)](dev, count, p); - } - - if (lp->tcount == count) { - lp->media = NC; - if (lp->media != lp->c_media) { - de4x5_dbg_media(dev); - lp->c_media = lp->media; - } - lp->media = INIT; - lp->tcount = 0; - lp->tx_enable = false; - } - - return next_tick & ~TIMER_CB; -} - -static int -dc21142_infoleaf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char count = 0; - u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset; - int next_tick = DE4X5_AUTOSENSE_MS; - - /* Read the connection type */ - p+=2; - - /* Block count */ - count = *p++; - - /* Recursively figure out the info blocks */ - if (*p < 128) { - next_tick = dc_infoblock[COMPACT](dev, count, p); - } else { - next_tick = dc_infoblock[*(p+1)](dev, count, p); - } - - if (lp->tcount == count) { - lp->media = NC; - if (lp->media != lp->c_media) { - de4x5_dbg_media(dev); - lp->c_media = lp->media; - } - lp->media = INIT; - lp->tcount = 0; - lp->tx_enable = false; - } - - return next_tick & ~TIMER_CB; -} - -static int -dc21143_infoleaf(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char count = 0; - u_char *p = (u_char *)&lp->srom + lp->infoleaf_offset; - int next_tick = DE4X5_AUTOSENSE_MS; - - /* Read the connection type */ - p+=2; - - /* Block count */ - count = *p++; - - /* Recursively figure out the info blocks */ - if (*p < 128) { - next_tick = dc_infoblock[COMPACT](dev, count, p); - } else { - next_tick = dc_infoblock[*(p+1)](dev, count, p); - } - if (lp->tcount == count) { - lp->media = NC; - if (lp->media != lp->c_media) { - de4x5_dbg_media(dev); - lp->c_media = lp->media; - } - lp->media = INIT; - lp->tcount = 0; - lp->tx_enable = false; - } - - return next_tick & ~TIMER_CB; -} - -/* -** The compact infoblock is only designed for DC21140[A] chips, so -** we'll reuse the dc21140m_autoconf function. Non MII media only. -*/ -static int -compact_infoblock(struct net_device *dev, u_char count, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char flags, csr6; - - /* Recursively figure out the info blocks */ - if (--count > lp->tcount) { - if (*(p+COMPACT_LEN) < 128) { - return dc_infoblock[COMPACT](dev, count, p+COMPACT_LEN); - } else { - return dc_infoblock[*(p+COMPACT_LEN+1)](dev, count, p+COMPACT_LEN); - } - } - - if ((lp->media == INIT) && (lp->timeout < 0)) { - lp->ibn = COMPACT; - lp->active = 0; - gep_wr(lp->cache.gepc, dev); - lp->infoblock_media = (*p++) & COMPACT_MC; - lp->cache.gep = *p++; - csr6 = *p++; - flags = *p++; - - lp->asBitValid = (flags & 0x80) ? 0 : -1; - lp->defMedium = (flags & 0x40) ? -1 : 0; - lp->asBit = 1 << ((csr6 >> 1) & 0x07); - lp->asPolarity = ((csr6 & 0x80) ? -1 : 0) & lp->asBit; - lp->infoblock_csr6 = OMR_DEF | ((csr6 & 0x71) << 18); - lp->useMII = false; - - de4x5_switch_mac_port(dev); - } - - return dc21140m_autoconf(dev); -} - -/* -** This block describes non MII media for the DC21140[A] only. -*/ -static int -type0_infoblock(struct net_device *dev, u_char count, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char flags, csr6, len = (*p & BLOCK_LEN)+1; - - /* Recursively figure out the info blocks */ - if (--count > lp->tcount) { - if (*(p+len) < 128) { - return dc_infoblock[COMPACT](dev, count, p+len); - } else { - return dc_infoblock[*(p+len+1)](dev, count, p+len); - } - } - - if ((lp->media == INIT) && (lp->timeout < 0)) { - lp->ibn = 0; - lp->active = 0; - gep_wr(lp->cache.gepc, dev); - p+=2; - lp->infoblock_media = (*p++) & BLOCK0_MC; - lp->cache.gep = *p++; - csr6 = *p++; - flags = *p++; - - lp->asBitValid = (flags & 0x80) ? 0 : -1; - lp->defMedium = (flags & 0x40) ? -1 : 0; - lp->asBit = 1 << ((csr6 >> 1) & 0x07); - lp->asPolarity = ((csr6 & 0x80) ? -1 : 0) & lp->asBit; - lp->infoblock_csr6 = OMR_DEF | ((csr6 & 0x71) << 18); - lp->useMII = false; - - de4x5_switch_mac_port(dev); - } - - return dc21140m_autoconf(dev); -} - -/* These functions are under construction! */ - -static int -type1_infoblock(struct net_device *dev, u_char count, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char len = (*p & BLOCK_LEN)+1; - - /* Recursively figure out the info blocks */ - if (--count > lp->tcount) { - if (*(p+len) < 128) { - return dc_infoblock[COMPACT](dev, count, p+len); - } else { - return dc_infoblock[*(p+len+1)](dev, count, p+len); - } - } - - p += 2; - if (lp->state == INITIALISED) { - lp->ibn = 1; - lp->active = *p++; - lp->phy[lp->active].gep = (*p ? p : NULL); p += (*p + 1); - lp->phy[lp->active].rst = (*p ? p : NULL); p += (*p + 1); - lp->phy[lp->active].mc = get_unaligned_le16(p); p += 2; - lp->phy[lp->active].ana = get_unaligned_le16(p); p += 2; - lp->phy[lp->active].fdx = get_unaligned_le16(p); p += 2; - lp->phy[lp->active].ttm = get_unaligned_le16(p); - return 0; - } else if ((lp->media == INIT) && (lp->timeout < 0)) { - lp->ibn = 1; - lp->active = *p; - lp->infoblock_csr6 = OMR_MII_100; - lp->useMII = true; - lp->infoblock_media = ANS; - - de4x5_switch_mac_port(dev); - } - - return dc21140m_autoconf(dev); -} - -static int -type2_infoblock(struct net_device *dev, u_char count, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char len = (*p & BLOCK_LEN)+1; - - /* Recursively figure out the info blocks */ - if (--count > lp->tcount) { - if (*(p+len) < 128) { - return dc_infoblock[COMPACT](dev, count, p+len); - } else { - return dc_infoblock[*(p+len+1)](dev, count, p+len); - } - } - - if ((lp->media == INIT) && (lp->timeout < 0)) { - lp->ibn = 2; - lp->active = 0; - p += 2; - lp->infoblock_media = (*p) & MEDIA_CODE; - - if ((*p++) & EXT_FIELD) { - lp->cache.csr13 = get_unaligned_le16(p); p += 2; - lp->cache.csr14 = get_unaligned_le16(p); p += 2; - lp->cache.csr15 = get_unaligned_le16(p); p += 2; - } else { - lp->cache.csr13 = CSR13; - lp->cache.csr14 = CSR14; - lp->cache.csr15 = CSR15; - } - lp->cache.gepc = ((s32)(get_unaligned_le16(p)) << 16); p += 2; - lp->cache.gep = ((s32)(get_unaligned_le16(p)) << 16); - lp->infoblock_csr6 = OMR_SIA; - lp->useMII = false; - - de4x5_switch_mac_port(dev); - } - - return dc2114x_autoconf(dev); -} - -static int -type3_infoblock(struct net_device *dev, u_char count, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char len = (*p & BLOCK_LEN)+1; - - /* Recursively figure out the info blocks */ - if (--count > lp->tcount) { - if (*(p+len) < 128) { - return dc_infoblock[COMPACT](dev, count, p+len); - } else { - return dc_infoblock[*(p+len+1)](dev, count, p+len); - } - } - - p += 2; - if (lp->state == INITIALISED) { - lp->ibn = 3; - lp->active = *p++; - if (MOTO_SROM_BUG) lp->active = 0; - /* if (MOTO_SROM_BUG) statement indicates lp->active could - * be 8 (i.e. the size of array lp->phy) */ - if (WARN_ON(lp->active >= ARRAY_SIZE(lp->phy))) - return -EINVAL; - lp->phy[lp->active].gep = (*p ? p : NULL); p += (2 * (*p) + 1); - lp->phy[lp->active].rst = (*p ? p : NULL); p += (2 * (*p) + 1); - lp->phy[lp->active].mc = get_unaligned_le16(p); p += 2; - lp->phy[lp->active].ana = get_unaligned_le16(p); p += 2; - lp->phy[lp->active].fdx = get_unaligned_le16(p); p += 2; - lp->phy[lp->active].ttm = get_unaligned_le16(p); p += 2; - lp->phy[lp->active].mci = *p; - return 0; - } else if ((lp->media == INIT) && (lp->timeout < 0)) { - lp->ibn = 3; - lp->active = *p; - if (MOTO_SROM_BUG) lp->active = 0; - lp->infoblock_csr6 = OMR_MII_100; - lp->useMII = true; - lp->infoblock_media = ANS; - - de4x5_switch_mac_port(dev); - } - - return dc2114x_autoconf(dev); -} - -static int -type4_infoblock(struct net_device *dev, u_char count, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char flags, csr6, len = (*p & BLOCK_LEN)+1; - - /* Recursively figure out the info blocks */ - if (--count > lp->tcount) { - if (*(p+len) < 128) { - return dc_infoblock[COMPACT](dev, count, p+len); - } else { - return dc_infoblock[*(p+len+1)](dev, count, p+len); - } - } - - if ((lp->media == INIT) && (lp->timeout < 0)) { - lp->ibn = 4; - lp->active = 0; - p+=2; - lp->infoblock_media = (*p++) & MEDIA_CODE; - lp->cache.csr13 = CSR13; /* Hard coded defaults */ - lp->cache.csr14 = CSR14; - lp->cache.csr15 = CSR15; - lp->cache.gepc = ((s32)(get_unaligned_le16(p)) << 16); p += 2; - lp->cache.gep = ((s32)(get_unaligned_le16(p)) << 16); p += 2; - csr6 = *p++; - flags = *p++; - - lp->asBitValid = (flags & 0x80) ? 0 : -1; - lp->defMedium = (flags & 0x40) ? -1 : 0; - lp->asBit = 1 << ((csr6 >> 1) & 0x07); - lp->asPolarity = ((csr6 & 0x80) ? -1 : 0) & lp->asBit; - lp->infoblock_csr6 = OMR_DEF | ((csr6 & 0x71) << 18); - lp->useMII = false; - - de4x5_switch_mac_port(dev); - } - - return dc2114x_autoconf(dev); -} - -/* -** This block type provides information for resetting external devices -** (chips) through the General Purpose Register. -*/ -static int -type5_infoblock(struct net_device *dev, u_char count, u_char *p) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_char len = (*p & BLOCK_LEN)+1; - - /* Recursively figure out the info blocks */ - if (--count > lp->tcount) { - if (*(p+len) < 128) { - return dc_infoblock[COMPACT](dev, count, p+len); - } else { - return dc_infoblock[*(p+len+1)](dev, count, p+len); - } - } - - /* Must be initializing to run this code */ - if ((lp->state == INITIALISED) || (lp->media == INIT)) { - p+=2; - lp->rst = p; - srom_exec(dev, lp->rst); - } - - return DE4X5_AUTOSENSE_MS; -} - -/* -** MII Read/Write -*/ - -static int -mii_rd(u_char phyreg, u_char phyaddr, u_long ioaddr) -{ - mii_wdata(MII_PREAMBLE, 2, ioaddr); /* Start of 34 bit preamble... */ - mii_wdata(MII_PREAMBLE, 32, ioaddr); /* ...continued */ - mii_wdata(MII_STRD, 4, ioaddr); /* SFD and Read operation */ - mii_address(phyaddr, ioaddr); /* PHY address to be accessed */ - mii_address(phyreg, ioaddr); /* PHY Register to read */ - mii_ta(MII_STRD, ioaddr); /* Turn around time - 2 MDC */ - - return mii_rdata(ioaddr); /* Read data */ -} - -static void -mii_wr(int data, u_char phyreg, u_char phyaddr, u_long ioaddr) -{ - mii_wdata(MII_PREAMBLE, 2, ioaddr); /* Start of 34 bit preamble... */ - mii_wdata(MII_PREAMBLE, 32, ioaddr); /* ...continued */ - mii_wdata(MII_STWR, 4, ioaddr); /* SFD and Write operation */ - mii_address(phyaddr, ioaddr); /* PHY address to be accessed */ - mii_address(phyreg, ioaddr); /* PHY Register to write */ - mii_ta(MII_STWR, ioaddr); /* Turn around time - 2 MDC */ - data = mii_swap(data, 16); /* Swap data bit ordering */ - mii_wdata(data, 16, ioaddr); /* Write data */ -} - -static int -mii_rdata(u_long ioaddr) -{ - int i; - s32 tmp = 0; - - for (i=0; i<16; i++) { - tmp <<= 1; - tmp |= getfrom_mii(MII_MRD | MII_RD, ioaddr); - } - - return tmp; -} - -static void -mii_wdata(int data, int len, u_long ioaddr) -{ - int i; - - for (i=0; i<len; i++) { - sendto_mii(MII_MWR | MII_WR, data, ioaddr); - data >>= 1; - } -} - -static void -mii_address(u_char addr, u_long ioaddr) -{ - int i; - - addr = mii_swap(addr, 5); - for (i=0; i<5; i++) { - sendto_mii(MII_MWR | MII_WR, addr, ioaddr); - addr >>= 1; - } -} - -static void -mii_ta(u_long rw, u_long ioaddr) -{ - if (rw == MII_STWR) { - sendto_mii(MII_MWR | MII_WR, 1, ioaddr); - sendto_mii(MII_MWR | MII_WR, 0, ioaddr); - } else { - getfrom_mii(MII_MRD | MII_RD, ioaddr); /* Tri-state MDIO */ - } -} - -static int -mii_swap(int data, int len) -{ - int i, tmp = 0; - - for (i=0; i<len; i++) { - tmp <<= 1; - tmp |= (data & 1); - data >>= 1; - } - - return tmp; -} - -static void -sendto_mii(u32 command, int data, u_long ioaddr) -{ - u32 j; - - j = (data & 1) << 17; - outl(command | j, ioaddr); - udelay(1); - outl(command | MII_MDC | j, ioaddr); - udelay(1); -} - -static int -getfrom_mii(u32 command, u_long ioaddr) -{ - outl(command, ioaddr); - udelay(1); - outl(command | MII_MDC, ioaddr); - udelay(1); - - return (inl(ioaddr) >> 19) & 1; -} - -/* -** Here's 3 ways to calculate the OUI from the ID registers. -*/ -static int -mii_get_oui(u_char phyaddr, u_long ioaddr) -{ -/* - union { - u_short reg; - u_char breg[2]; - } a; - int i, r2, r3, ret=0;*/ - int r2; - - /* Read r2 and r3 */ - r2 = mii_rd(MII_ID0, phyaddr, ioaddr); - mii_rd(MII_ID1, phyaddr, ioaddr); - /* SEEQ and Cypress way * / - / * Shuffle r2 and r3 * / - a.reg=0; - r3 = ((r3>>10)|(r2<<6))&0x0ff; - r2 = ((r2>>2)&0x3fff); - - / * Bit reverse r3 * / - for (i=0;i<8;i++) { - ret<<=1; - ret |= (r3&1); - r3>>=1; - } - - / * Bit reverse r2 * / - for (i=0;i<16;i++) { - a.reg<<=1; - a.reg |= (r2&1); - r2>>=1; - } - - / * Swap r2 bytes * / - i=a.breg[0]; - a.breg[0]=a.breg[1]; - a.breg[1]=i; - - return (a.reg<<8)|ret; */ /* SEEQ and Cypress way */ -/* return (r2<<6)|(u_int)(r3>>10); */ /* NATIONAL and BROADCOM way */ - return r2; /* (I did it) My way */ -} - -/* -** The SROM spec forces us to search addresses [1-31 0]. Bummer. -*/ -static int -mii_get_phy(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - int i, j, k, n, limit=ARRAY_SIZE(phy_info); - int id; - - lp->active = 0; - lp->useMII = true; - - /* Search the MII address space for possible PHY devices */ - for (n=0, lp->mii_cnt=0, i=1; !((i==1) && (n==1)); i=(i+1)%DE4X5_MAX_MII) { - lp->phy[lp->active].addr = i; - if (i==0) n++; /* Count cycles */ - while (de4x5_reset_phy(dev)<0) udelay(100);/* Wait for reset */ - id = mii_get_oui(i, DE4X5_MII); - if ((id == 0) || (id == 65535)) continue; /* Valid ID? */ - for (j=0; j<limit; j++) { /* Search PHY table */ - if (id != phy_info[j].id) continue; /* ID match? */ - for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++); - if (k < DE4X5_MAX_PHY) { - memcpy((char *)&lp->phy[k], - (char *)&phy_info[j], sizeof(struct phy_table)); - lp->phy[k].addr = i; - lp->mii_cnt++; - lp->active++; - } else { - goto purgatory; /* Stop the search */ - } - break; - } - if ((j == limit) && (i < DE4X5_MAX_MII)) { - for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++); - if (k < DE4X5_MAX_PHY) { - lp->phy[k].addr = i; - lp->phy[k].id = id; - lp->phy[k].spd.reg = GENERIC_REG; /* ANLPA register */ - lp->phy[k].spd.mask = GENERIC_MASK; /* 100Mb/s technologies */ - lp->phy[k].spd.value = GENERIC_VALUE; /* TX & T4, H/F Duplex */ - lp->mii_cnt++; - lp->active++; - printk("%s: Using generic MII device control. If the board doesn't operate,\nplease mail the following dump to the author:\n", dev->name); - j = de4x5_debug; - de4x5_debug |= DEBUG_MII; - de4x5_dbg_mii(dev, k); - de4x5_debug = j; - printk("\n"); - } else { - goto purgatory; - } - } - } - purgatory: - lp->active = 0; - if (lp->phy[0].id) { /* Reset the PHY devices */ - for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++) { /*For each PHY*/ - mii_wr(MII_CR_RST, MII_CR, lp->phy[k].addr, DE4X5_MII); - while (mii_rd(MII_CR, lp->phy[k].addr, DE4X5_MII) & MII_CR_RST); - - de4x5_dbg_mii(dev, k); - } - } - if (!lp->mii_cnt) lp->useMII = false; - - return lp->mii_cnt; -} - -static char * -build_setup_frame(struct net_device *dev, int mode) -{ - struct de4x5_private *lp = netdev_priv(dev); - int i; - char *pa = lp->setup_frame; - - /* Initialise the setup frame */ - if (mode == ALL) { - memset(lp->setup_frame, 0, SETUP_FRAME_LEN); - } - - if (lp->setup_f == HASH_PERF) { - for (pa=lp->setup_frame+IMPERF_PA_OFFSET, i=0; i<ETH_ALEN; i++) { - *(pa + i) = dev->dev_addr[i]; /* Host address */ - if (i & 0x01) pa += 2; - } - *(lp->setup_frame + (DE4X5_HASH_TABLE_LEN >> 3) - 3) = 0x80; - } else { - for (i=0; i<ETH_ALEN; i++) { /* Host address */ - *(pa + (i&1)) = dev->dev_addr[i]; - if (i & 0x01) pa += 4; - } - for (i=0; i<ETH_ALEN; i++) { /* Broadcast address */ - *(pa + (i&1)) = (char) 0xff; - if (i & 0x01) pa += 4; - } - } - - return pa; /* Points to the next entry */ -} - -static void -disable_ast(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - del_timer_sync(&lp->timer); -} - -static long -de4x5_switch_mac_port(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - s32 omr; - - STOP_DE4X5; - - /* Assert the OMR_PS bit in CSR6 */ - omr = (inl(DE4X5_OMR) & ~(OMR_PS | OMR_HBD | OMR_TTM | OMR_PCS | OMR_SCR | - OMR_FDX)); - omr |= lp->infoblock_csr6; - if (omr & OMR_PS) omr |= OMR_HBD; - outl(omr, DE4X5_OMR); - - /* Soft Reset */ - RESET_DE4X5; - - /* Restore the GEP - especially for COMPACT and Type 0 Infoblocks */ - if (lp->chipset == DC21140) { - gep_wr(lp->cache.gepc, dev); - gep_wr(lp->cache.gep, dev); - } else if ((lp->chipset & ~0x0ff) == DC2114x) { - reset_init_sia(dev, lp->cache.csr13, lp->cache.csr14, lp->cache.csr15); - } - - /* Restore CSR6 */ - outl(omr, DE4X5_OMR); - - /* Reset CSR8 */ - inl(DE4X5_MFC); - - return omr; -} - -static void -gep_wr(s32 data, struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - if (lp->chipset == DC21140) { - outl(data, DE4X5_GEP); - } else if ((lp->chipset & ~0x00ff) == DC2114x) { - outl((data<<16) | lp->cache.csr15, DE4X5_SIGR); - } -} - -static int -gep_rd(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - if (lp->chipset == DC21140) { - return inl(DE4X5_GEP); - } else if ((lp->chipset & ~0x00ff) == DC2114x) { - return inl(DE4X5_SIGR) & 0x000fffff; - } - - return 0; -} - -static void -yawn(struct net_device *dev, int state) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - if ((lp->chipset == DC21040) || (lp->chipset == DC21140)) return; - - if(lp->bus == EISA) { - switch(state) { - case WAKEUP: - outb(WAKEUP, PCI_CFPM); - mdelay(10); - break; - - case SNOOZE: - outb(SNOOZE, PCI_CFPM); - break; - - case SLEEP: - outl(0, DE4X5_SICR); - outb(SLEEP, PCI_CFPM); - break; - } - } else { - struct pci_dev *pdev = to_pci_dev (lp->gendev); - switch(state) { - case WAKEUP: - pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP); - mdelay(10); - break; - - case SNOOZE: - pci_write_config_byte(pdev, PCI_CFDA_PSM, SNOOZE); - break; - - case SLEEP: - outl(0, DE4X5_SICR); - pci_write_config_byte(pdev, PCI_CFDA_PSM, SLEEP); - break; - } - } -} - -static void -de4x5_parse_params(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - char *p, *q, t; - - lp->params.fdx = false; - lp->params.autosense = AUTO; - - if (args == NULL) return; - - if ((p = strstr(args, dev->name))) { - if (!(q = strstr(p+strlen(dev->name), "eth"))) q = p + strlen(p); - t = *q; - *q = '\0'; - - if (strstr(p, "fdx") || strstr(p, "FDX")) lp->params.fdx = true; - - if (strstr(p, "autosense") || strstr(p, "AUTOSENSE")) { - if (strstr(p, "TP_NW")) { - lp->params.autosense = TP_NW; - } else if (strstr(p, "TP")) { - lp->params.autosense = TP; - } else if (strstr(p, "BNC_AUI")) { - lp->params.autosense = BNC; - } else if (strstr(p, "BNC")) { - lp->params.autosense = BNC; - } else if (strstr(p, "AUI")) { - lp->params.autosense = AUI; - } else if (strstr(p, "10Mb")) { - lp->params.autosense = _10Mb; - } else if (strstr(p, "100Mb")) { - lp->params.autosense = _100Mb; - } else if (strstr(p, "AUTO")) { - lp->params.autosense = AUTO; - } - } - *q = t; - } -} - -static void -de4x5_dbg_open(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - int i; - - if (de4x5_debug & DEBUG_OPEN) { - printk("%s: de4x5 opening with irq %d\n",dev->name,dev->irq); - printk("\tphysical address: %pM\n", dev->dev_addr); - printk("Descriptor head addresses:\n"); - printk("\t0x%8.8lx 0x%8.8lx\n",(u_long)lp->rx_ring,(u_long)lp->tx_ring); - printk("Descriptor addresses:\nRX: "); - for (i=0;i<lp->rxRingSize-1;i++){ - if (i < 3) { - printk("0x%8.8lx ",(u_long)&lp->rx_ring[i].status); - } - } - printk("...0x%8.8lx\n",(u_long)&lp->rx_ring[i].status); - printk("TX: "); - for (i=0;i<lp->txRingSize-1;i++){ - if (i < 3) { - printk("0x%8.8lx ", (u_long)&lp->tx_ring[i].status); - } - } - printk("...0x%8.8lx\n", (u_long)&lp->tx_ring[i].status); - printk("Descriptor buffers:\nRX: "); - for (i=0;i<lp->rxRingSize-1;i++){ - if (i < 3) { - printk("0x%8.8x ",le32_to_cpu(lp->rx_ring[i].buf)); - } - } - printk("...0x%8.8x\n",le32_to_cpu(lp->rx_ring[i].buf)); - printk("TX: "); - for (i=0;i<lp->txRingSize-1;i++){ - if (i < 3) { - printk("0x%8.8x ", le32_to_cpu(lp->tx_ring[i].buf)); - } - } - printk("...0x%8.8x\n", le32_to_cpu(lp->tx_ring[i].buf)); - printk("Ring size:\nRX: %d\nTX: %d\n", - (short)lp->rxRingSize, - (short)lp->txRingSize); - } -} - -static void -de4x5_dbg_mii(struct net_device *dev, int k) -{ - struct de4x5_private *lp = netdev_priv(dev); - u_long iobase = dev->base_addr; - - if (de4x5_debug & DEBUG_MII) { - printk("\nMII device address: %d\n", lp->phy[k].addr); - printk("MII CR: %x\n",mii_rd(MII_CR,lp->phy[k].addr,DE4X5_MII)); - printk("MII SR: %x\n",mii_rd(MII_SR,lp->phy[k].addr,DE4X5_MII)); - printk("MII ID0: %x\n",mii_rd(MII_ID0,lp->phy[k].addr,DE4X5_MII)); - printk("MII ID1: %x\n",mii_rd(MII_ID1,lp->phy[k].addr,DE4X5_MII)); - if (lp->phy[k].id != BROADCOM_T4) { - printk("MII ANA: %x\n",mii_rd(0x04,lp->phy[k].addr,DE4X5_MII)); - printk("MII ANC: %x\n",mii_rd(0x05,lp->phy[k].addr,DE4X5_MII)); - } - printk("MII 16: %x\n",mii_rd(0x10,lp->phy[k].addr,DE4X5_MII)); - if (lp->phy[k].id != BROADCOM_T4) { - printk("MII 17: %x\n",mii_rd(0x11,lp->phy[k].addr,DE4X5_MII)); - printk("MII 18: %x\n",mii_rd(0x12,lp->phy[k].addr,DE4X5_MII)); - } else { - printk("MII 20: %x\n",mii_rd(0x14,lp->phy[k].addr,DE4X5_MII)); - } - } -} - -static void -de4x5_dbg_media(struct net_device *dev) -{ - struct de4x5_private *lp = netdev_priv(dev); - - if (lp->media != lp->c_media) { - if (de4x5_debug & DEBUG_MEDIA) { - printk("%s: media is %s%s\n", dev->name, - (lp->media == NC ? "unconnected, link down or incompatible connection" : - (lp->media == TP ? "TP" : - (lp->media == ANS ? "TP/Nway" : - (lp->media == BNC ? "BNC" : - (lp->media == AUI ? "AUI" : - (lp->media == BNC_AUI ? "BNC/AUI" : - (lp->media == EXT_SIA ? "EXT SIA" : - (lp->media == _100Mb ? "100Mb/s" : - (lp->media == _10Mb ? "10Mb/s" : - "???" - ))))))))), (lp->fdx?" full duplex.":".")); - } - lp->c_media = lp->media; - } -} - -static void -de4x5_dbg_srom(struct de4x5_srom *p) -{ - int i; - - if (de4x5_debug & DEBUG_SROM) { - printk("Sub-system Vendor ID: %04x\n", *((u_short *)p->sub_vendor_id)); - printk("Sub-system ID: %04x\n", *((u_short *)p->sub_system_id)); - printk("ID Block CRC: %02x\n", (u_char)(p->id_block_crc)); - printk("SROM version: %02x\n", (u_char)(p->version)); - printk("# controllers: %02x\n", (u_char)(p->num_controllers)); - - printk("Hardware Address: %pM\n", p->ieee_addr); - printk("CRC checksum: %04x\n", (u_short)(p->chksum)); - for (i=0; i<64; i++) { - printk("%3d %04x\n", i<<1, (u_short)*((u_short *)p+i)); - } - } -} - -static void -de4x5_dbg_rx(struct sk_buff *skb, int len) -{ - int i, j; - - if (de4x5_debug & DEBUG_RX) { - printk("R: %pM <- %pM len/SAP:%02x%02x [%d]\n", - skb->data, &skb->data[6], - (u_char)skb->data[12], - (u_char)skb->data[13], - len); - for (j=0; len>0;j+=16, len-=16) { - printk(" %03x: ",j); - for (i=0; i<16 && i<len; i++) { - printk("%02x ",(u_char)skb->data[i+j]); - } - printk("\n"); - } - } -} - -/* -** Perform IOCTL call functions here. Some are privileged operations and the -** effective uid is checked in those cases. In the normal course of events -** this function is only used for my testing. -*/ -static int -de4x5_siocdevprivate(struct net_device *dev, struct ifreq *rq, void __user *data, int cmd) -{ - struct de4x5_private *lp = netdev_priv(dev); - struct de4x5_ioctl *ioc = (struct de4x5_ioctl *) &rq->ifr_ifru; - u_long iobase = dev->base_addr; - int i, j, status = 0; - s32 omr; - union { - u8 addr[144]; - u16 sval[72]; - u32 lval[36]; - } tmp; - u_long flags = 0; - - if (cmd != SIOCDEVPRIVATE || in_compat_syscall()) - return -EOPNOTSUPP; - - switch(ioc->cmd) { - case DE4X5_GET_HWADDR: /* Get the hardware address */ - ioc->len = ETH_ALEN; - for (i=0; i<ETH_ALEN; i++) { - tmp.addr[i] = dev->dev_addr[i]; - } - if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; - break; - - case DE4X5_SET_HWADDR: /* Set the hardware address */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - if (copy_from_user(tmp.addr, ioc->data, ETH_ALEN)) return -EFAULT; - if (netif_queue_stopped(dev)) - return -EBUSY; - netif_stop_queue(dev); - eth_hw_addr_set(dev, tmp.addr); - build_setup_frame(dev, PHYS_ADDR_ONLY); - /* Set up the descriptor and give ownership to the card */ - load_packet(dev, lp->setup_frame, TD_IC | PERFECT_F | TD_SET | - SETUP_FRAME_LEN, (struct sk_buff *)1); - lp->tx_new = (lp->tx_new + 1) % lp->txRingSize; - outl(POLL_DEMAND, DE4X5_TPD); /* Start the TX */ - netif_wake_queue(dev); /* Unlock the TX ring */ - break; - - case DE4X5_SAY_BOO: /* Say "Boo!" to the kernel log file */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - printk("%s: Boo!\n", dev->name); - break; - - case DE4X5_MCA_EN: /* Enable pass all multicast addressing */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - omr = inl(DE4X5_OMR); - omr |= OMR_PM; - outl(omr, DE4X5_OMR); - break; - - case DE4X5_GET_STATS: /* Get the driver statistics */ - { - struct pkt_stats statbuf; - ioc->len = sizeof(statbuf); - spin_lock_irqsave(&lp->lock, flags); - memcpy(&statbuf, &lp->pktStats, ioc->len); - spin_unlock_irqrestore(&lp->lock, flags); - if (copy_to_user(ioc->data, &statbuf, ioc->len)) - return -EFAULT; - break; - } - case DE4X5_CLR_STATS: /* Zero out the driver statistics */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - spin_lock_irqsave(&lp->lock, flags); - memset(&lp->pktStats, 0, sizeof(lp->pktStats)); - spin_unlock_irqrestore(&lp->lock, flags); - break; - - case DE4X5_GET_OMR: /* Get the OMR Register contents */ - tmp.addr[0] = inl(DE4X5_OMR); - if (copy_to_user(ioc->data, tmp.addr, 1)) return -EFAULT; - break; - - case DE4X5_SET_OMR: /* Set the OMR Register contents */ - if (!capable(CAP_NET_ADMIN)) return -EPERM; - if (copy_from_user(tmp.addr, ioc->data, 1)) return -EFAULT; - outl(tmp.addr[0], DE4X5_OMR); - break; - - case DE4X5_GET_REG: /* Get the DE4X5 Registers */ - j = 0; - tmp.lval[0] = inl(DE4X5_STS); j+=4; - tmp.lval[1] = inl(DE4X5_BMR); j+=4; - tmp.lval[2] = inl(DE4X5_IMR); j+=4; - tmp.lval[3] = inl(DE4X5_OMR); j+=4; - tmp.lval[4] = inl(DE4X5_SISR); j+=4; - tmp.lval[5] = inl(DE4X5_SICR); j+=4; - tmp.lval[6] = inl(DE4X5_STRR); j+=4; - tmp.lval[7] = inl(DE4X5_SIGR); j+=4; - ioc->len = j; - if (copy_to_user(ioc->data, tmp.lval, ioc->len)) - return -EFAULT; - break; - -#define DE4X5_DUMP 0x0f /* Dump the DE4X5 Status */ -/* - case DE4X5_DUMP: - j = 0; - tmp.addr[j++] = dev->irq; - for (i=0; i<ETH_ALEN; i++) { - tmp.addr[j++] = dev->dev_addr[i]; - } - tmp.addr[j++] = lp->rxRingSize; - tmp.lval[j>>2] = (long)lp->rx_ring; j+=4; - tmp.lval[j>>2] = (long)lp->tx_ring; j+=4; - - for (i=0;i<lp->rxRingSize-1;i++){ - if (i < 3) { - tmp.lval[j>>2] = (long)&lp->rx_ring[i].status; j+=4; - } - } - tmp.lval[j>>2] = (long)&lp->rx_ring[i].status; j+=4; - for (i=0;i<lp->txRingSize-1;i++){ - if (i < 3) { - tmp.lval[j>>2] = (long)&lp->tx_ring[i].status; j+=4; - } - } - tmp.lval[j>>2] = (long)&lp->tx_ring[i].status; j+=4; - - for (i=0;i<lp->rxRingSize-1;i++){ - if (i < 3) { - tmp.lval[j>>2] = (s32)le32_to_cpu(lp->rx_ring[i].buf); j+=4; - } - } - tmp.lval[j>>2] = (s32)le32_to_cpu(lp->rx_ring[i].buf); j+=4; - for (i=0;i<lp->txRingSize-1;i++){ - if (i < 3) { - tmp.lval[j>>2] = (s32)le32_to_cpu(lp->tx_ring[i].buf); j+=4; - } - } - tmp.lval[j>>2] = (s32)le32_to_cpu(lp->tx_ring[i].buf); j+=4; - - for (i=0;i<lp->rxRingSize;i++){ - tmp.lval[j>>2] = le32_to_cpu(lp->rx_ring[i].status); j+=4; - } - for (i=0;i<lp->txRingSize;i++){ - tmp.lval[j>>2] = le32_to_cpu(lp->tx_ring[i].status); j+=4; - } - - tmp.lval[j>>2] = inl(DE4X5_BMR); j+=4; - tmp.lval[j>>2] = inl(DE4X5_TPD); j+=4; - tmp.lval[j>>2] = inl(DE4X5_RPD); j+=4; - tmp.lval[j>>2] = inl(DE4X5_RRBA); j+=4; - tmp.lval[j>>2] = inl(DE4X5_TRBA); j+=4; - tmp.lval[j>>2] = inl(DE4X5_STS); j+=4; - tmp.lval[j>>2] = inl(DE4X5_OMR); j+=4; - tmp.lval[j>>2] = inl(DE4X5_IMR); j+=4; - tmp.lval[j>>2] = lp->chipset; j+=4; - if (lp->chipset == DC21140) { - tmp.lval[j>>2] = gep_rd(dev); j+=4; - } else { - tmp.lval[j>>2] = inl(DE4X5_SISR); j+=4; - tmp.lval[j>>2] = inl(DE4X5_SICR); j+=4; - tmp.lval[j>>2] = inl(DE4X5_STRR); j+=4; - tmp.lval[j>>2] = inl(DE4X5_SIGR); j+=4; - } - tmp.lval[j>>2] = lp->phy[lp->active].id; j+=4; - if (lp->phy[lp->active].id && (!lp->useSROM || lp->useMII)) { - tmp.lval[j>>2] = lp->active; j+=4; - tmp.lval[j>>2]=mii_rd(MII_CR,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - tmp.lval[j>>2]=mii_rd(MII_SR,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - tmp.lval[j>>2]=mii_rd(MII_ID0,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - tmp.lval[j>>2]=mii_rd(MII_ID1,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - if (lp->phy[lp->active].id != BROADCOM_T4) { - tmp.lval[j>>2]=mii_rd(MII_ANA,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - tmp.lval[j>>2]=mii_rd(MII_ANLPA,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - } - tmp.lval[j>>2]=mii_rd(0x10,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - if (lp->phy[lp->active].id != BROADCOM_T4) { - tmp.lval[j>>2]=mii_rd(0x11,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - tmp.lval[j>>2]=mii_rd(0x12,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - } else { - tmp.lval[j>>2]=mii_rd(0x14,lp->phy[lp->active].addr,DE4X5_MII); j+=4; - } - } - - tmp.addr[j++] = lp->txRingSize; - tmp.addr[j++] = netif_queue_stopped(dev); - - ioc->len = j; - if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; - break; - -*/ - default: - return -EOPNOTSUPP; - } - - return status; -} - -static int __init de4x5_module_init (void) -{ - int err = 0; - -#ifdef CONFIG_PCI - err = pci_register_driver(&de4x5_pci_driver); -#endif -#ifdef CONFIG_EISA - err |= eisa_driver_register (&de4x5_eisa_driver); -#endif - - return err; -} - -static void __exit de4x5_module_exit (void) -{ -#ifdef CONFIG_PCI - pci_unregister_driver (&de4x5_pci_driver); -#endif -#ifdef CONFIG_EISA - eisa_driver_unregister (&de4x5_eisa_driver); -#endif -} - -module_init (de4x5_module_init); -module_exit (de4x5_module_exit); |