| /* EtherLinkXL.c: A 3Com EtherLink PCI III/XL ethernet driver for linux. */ |
| /* |
| Written 1996-1999 by Donald Becker. |
| |
| This software may be used and distributed according to the terms |
| of the GNU General Public License, incorporated herein by reference. |
| |
| This driver is for the 3Com "Vortex" and "Boomerang" series ethercards. |
| Members of the series include Fast EtherLink 3c590/3c592/3c595/3c597 |
| and the EtherLink XL 3c900 and 3c905 cards. |
| |
| Problem reports and questions should be directed to |
| vortex@scyld.com |
| |
| The author may be reached as becker@scyld.com, or C/O |
| Scyld Computing Corporation |
| 410 Severn Ave., Suite 210 |
| Annapolis MD 21403 |
| |
| Linux Kernel Additions: |
| |
| 0.99H+lk0.9 - David S. Miller - softnet, PCI DMA updates |
| 0.99H+lk1.0 - Jeff Garzik <jgarzik@pobox.com> |
| Remove compatibility defines for kernel versions < 2.2.x. |
| Update for new 2.3.x module interface |
| LK1.1.2 (March 19, 2000) |
| * New PCI interface (jgarzik) |
| |
| LK1.1.3 25 April 2000, Andrew Morton <andrewm@uow.edu.au> |
| - Merged with 3c575_cb.c |
| - Don't set RxComplete in boomerang interrupt enable reg |
| - spinlock in vortex_timer to protect mdio functions |
| - disable local interrupts around call to vortex_interrupt in |
| vortex_tx_timeout() (So vortex_interrupt can use spin_lock()) |
| - Select window 3 in vortex_timer()'s write to Wn3_MAC_Ctrl |
| - In vortex_start_xmit(), move the lock to _after_ we've altered |
| vp->cur_tx and vp->tx_full. This defeats the race between |
| vortex_start_xmit() and vortex_interrupt which was identified |
| by Bogdan Costescu. |
| - Merged back support for six new cards from various sources |
| - Set vortex_have_pci if pci_module_init returns zero (fixes cardbus |
| insertion oops) |
| - Tell it that 3c905C has NWAY for 100bT autoneg |
| - Fix handling of SetStatusEnd in 'Too much work..' code, as |
| per 2.3.99's 3c575_cb (Dave Hinds). |
| - Split ISR into two for vortex & boomerang |
| - Fix MOD_INC/DEC races |
| - Handle resource allocation failures. |
| - Fix 3CCFE575CT LED polarity |
| - Make tx_interrupt_mitigation the default |
| |
| LK1.1.4 25 April 2000, Andrew Morton <andrewm@uow.edu.au> |
| - Add extra TxReset to vortex_up() to fix 575_cb hotplug initialisation probs. |
| - Put vortex_info_tbl into __devinitdata |
| - In the vortex_error StatsFull HACK, disable stats in vp->intr_enable as well |
| as in the hardware. |
| - Increased the loop counter in issue_and_wait from 2,000 to 4,000. |
| |
| LK1.1.5 28 April 2000, andrewm |
| - Added powerpc defines (John Daniel <jdaniel@etresoft.com> said these work...) |
| - Some extra diagnostics |
| - In vortex_error(), reset the Tx on maxCollisions. Otherwise most |
| chips usually get a Tx timeout. |
| - Added extra_reset module parm |
| - Replaced some inline timer manip with mod_timer |
| (Franois romieu <Francois.Romieu@nic.fr>) |
| - In vortex_up(), don't make Wn3_config initialisation dependent upon has_nway |
| (this came across from 3c575_cb). |
| |
| LK1.1.6 06 Jun 2000, andrewm |
| - Backed out the PPC defines. |
| - Use del_timer_sync(), mod_timer(). |
| - Fix wrapped ulong comparison in boomerang_rx() |
| - Add IS_TORNADO, use it to suppress 3c905C checksum error msg |
| (Donald Becker, I Lee Hetherington <ilh@sls.lcs.mit.edu>) |
| - Replace union wn3_config with BFINS/BFEXT manipulation for |
| sparc64 (Pete Zaitcev, Peter Jones) |
| - In vortex_error, do_tx_reset and vortex_tx_timeout(Vortex): |
| do a netif_wake_queue() to better recover from errors. (Anders Pedersen, |
| Donald Becker) |
| - Print a warning on out-of-memory (rate limited to 1 per 10 secs) |
| - Added two more Cardbus 575 NICs: 5b57 and 6564 (Paul Wagland) |
| |
| LK1.1.7 2 Jul 2000 andrewm |
| - Better handling of shared IRQs |
| - Reset the transmitter on a Tx reclaim error |
| - Fixed crash under OOM during vortex_open() (Mark Hemment) |
| - Fix Rx cessation problem during OOM (help from Mark Hemment) |
| - The spinlocks around the mdio access were blocking interrupts for 300uS. |
| Fix all this to use spin_lock_bh() within mdio_read/write |
| - Only write to TxFreeThreshold if it's a boomerang - other NICs don't |
| have one. |
| - Added 802.3x MAC-layer flow control support |
| |
| LK1.1.8 13 Aug 2000 andrewm |
| - Ignore request_region() return value - already reserved if Cardbus. |
| - Merged some additional Cardbus flags from Don's 0.99Qk |
| - Some fixes for 3c556 (Fred Maciel) |
| - Fix for EISA initialisation (Jan Rekorajski) |
| - Renamed MII_XCVR_PWR and EEPROM_230 to align with 3c575_cb and D. Becker's drivers |
| - Fixed MII_XCVR_PWR for 3CCFE575CT |
| - Added INVERT_LED_PWR, used it. |
| - Backed out the extra_reset stuff |
| |
| LK1.1.9 12 Sep 2000 andrewm |
| - Backed out the tx_reset_resume flags. It was a no-op. |
| - In vortex_error, don't reset the Tx on txReclaim errors |
| - In vortex_error, don't reset the Tx on maxCollisions errors. |
| Hence backed out all the DownListPtr logic here. |
| - In vortex_error, give Tornado cards a partial TxReset on |
| maxCollisions (David Hinds). Defined MAX_COLLISION_RESET for this. |
| - Redid some driver flags and device names based on pcmcia_cs-3.1.20. |
| - Fixed a bug where, if vp->tx_full is set when the interface |
| is downed, it remains set when the interface is upped. Bad |
| things happen. |
| |
| LK1.1.10 17 Sep 2000 andrewm |
| - Added EEPROM_8BIT for 3c555 (Fred Maciel) |
| - Added experimental support for the 3c556B Laptop Hurricane (Louis Gerbarg) |
| - Add HAS_NWAY to "3c900 Cyclone 10Mbps TPO" |
| |
| LK1.1.11 13 Nov 2000 andrewm |
| - Dump MOD_INC/DEC_USE_COUNT, use SET_MODULE_OWNER |
| |
| LK1.1.12 1 Jan 2001 andrewm (2.4.0-pre1) |
| - Call pci_enable_device before we request our IRQ (Tobias Ringstrom) |
| - Add 3c590 PCI latency timer hack to vortex_probe1 (from 0.99Ra) |
| - Added extended issue_and_wait for the 3c905CX. |
| - Look for an MII on PHY index 24 first (3c905CX oddity). |
| - Add HAS_NWAY to 3cSOHO100-TX (Brett Frankenberger) |
| - Don't free skbs we don't own on oom path in vortex_open(). |
| |
| LK1.1.13 27 Jan 2001 |
| - Added explicit `medialock' flag so we can truly |
| lock the media type down with `options'. |
| - "check ioremap return and some tidbits" (Arnaldo Carvalho de Melo <acme@conectiva.com.br>) |
| - Added and used EEPROM_NORESET for 3c556B PM resumes. |
| - Fixed leakage of vp->rx_ring. |
| - Break out separate HAS_HWCKSM device capability flag. |
| - Kill vp->tx_full (ANK) |
| - Merge zerocopy fragment handling (ANK?) |
| |
| LK1.1.14 15 Feb 2001 |
| - Enable WOL. Can be turned on with `enable_wol' module option. |
| - EISA and PCI initialisation fixes (jgarzik, Manfred Spraul) |
| - If a device's internalconfig register reports it has NWAY, |
| use it, even if autoselect is enabled. |
| |
| LK1.1.15 6 June 2001 akpm |
| - Prevent double counting of received bytes (Lars Christensen) |
| - Add ethtool support (jgarzik) |
| - Add module parm descriptions (Andrzej M. Krzysztofowicz) |
| - Implemented alloc_etherdev() API |
| - Special-case the 'Tx error 82' message. |
| |
| LK1.1.16 18 July 2001 akpm |
| - Make NETIF_F_SG dependent upon nr_free_highpages(), not on CONFIG_HIGHMEM |
| - Lessen verbosity of bootup messages |
| - Fix WOL - use new PM API functions. |
| - Use netif_running() instead of vp->open in suspend/resume. |
| - Don't reset the interface logic on open/close/rmmod. It upsets |
| autonegotiation, and hence DHCP (from 0.99T). |
| - Back out EEPROM_NORESET flag because of the above (we do it for all |
| NICs). |
| - Correct 3c982 identification string |
| - Rename wait_for_completion() to issue_and_wait() to avoid completion.h |
| clash. |
| |
| LK1.1.17 18Dec01 akpm |
| - PCI ID 9805 is a Python-T, not a dual-port Cyclone. Apparently. |
| And it has NWAY. |
| - Mask our advertised modes (vp->advertising) with our capabilities |
| (MII reg5) when deciding which duplex mode to use. |
| - Add `global_options' as default for options[]. Ditto global_enable_wol, |
| global_full_duplex. |
| |
| LK1.1.18 01Jul02 akpm |
| - Fix for undocumented transceiver power-up bit on some 3c566B's |
| (Donald Becker, Rahul Karnik) |
| |
| - See http://www.zip.com.au/~akpm/linux/#3c59x-2.3 for more details. |
| - Also see Documentation/networking/vortex.txt |
| |
| LK1.1.19 10Nov02 Marc Zyngier <maz@wild-wind.fr.eu.org> |
| - EISA sysfs integration. |
| */ |
| |
| /* |
| * FIXME: This driver _could_ support MTU changing, but doesn't. See Don's hamachi.c implementation |
| * as well as other drivers |
| * |
| * NOTE: If you make 'vortex_debug' a constant (#define vortex_debug 0) the driver shrinks by 2k |
| * due to dead code elimination. There will be some performance benefits from this due to |
| * elimination of all the tests and reduced cache footprint. |
| */ |
| |
| |
| #define DRV_NAME "3c59x" |
| #define DRV_VERSION "LK1.1.19" |
| #define DRV_RELDATE "10 Nov 2002" |
| |
| |
| |
| /* A few values that may be tweaked. */ |
| /* Keep the ring sizes a power of two for efficiency. */ |
| #define TX_RING_SIZE 16 |
| #define RX_RING_SIZE 32 |
| #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ |
| |
| /* "Knobs" that adjust features and parameters. */ |
| /* Set the copy breakpoint for the copy-only-tiny-frames scheme. |
| Setting to > 1512 effectively disables this feature. */ |
| #ifndef __arm__ |
| static int rx_copybreak = 200; |
| #else |
| /* ARM systems perform better by disregarding the bus-master |
| transfer capability of these cards. -- rmk */ |
| static int rx_copybreak = 1513; |
| #endif |
| /* Allow setting MTU to a larger size, bypassing the normal ethernet setup. */ |
| static const int mtu = 1500; |
| /* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
| static int max_interrupt_work = 32; |
| /* Tx timeout interval (millisecs) */ |
| static int watchdog = 5000; |
| |
| /* Allow aggregation of Tx interrupts. Saves CPU load at the cost |
| * of possible Tx stalls if the system is blocking interrupts |
| * somewhere else. Undefine this to disable. |
| */ |
| #define tx_interrupt_mitigation 1 |
| |
| /* Put out somewhat more debugging messages. (0: no msg, 1 minimal .. 6). */ |
| #define vortex_debug debug |
| #ifdef VORTEX_DEBUG |
| static int vortex_debug = VORTEX_DEBUG; |
| #else |
| static int vortex_debug = 1; |
| #endif |
| |
| #include <linux/config.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/string.h> |
| #include <linux/timer.h> |
| #include <linux/errno.h> |
| #include <linux/in.h> |
| #include <linux/ioport.h> |
| #include <linux/slab.h> |
| #include <linux/interrupt.h> |
| #include <linux/pci.h> |
| #include <linux/mii.h> |
| #include <linux/init.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/skbuff.h> |
| #include <linux/ethtool.h> |
| #include <linux/highmem.h> |
| #include <linux/eisa.h> |
| #include <linux/bitops.h> |
| #include <asm/irq.h> /* For NR_IRQS only. */ |
| #include <asm/io.h> |
| #include <asm/uaccess.h> |
| |
| /* Kernel compatibility defines, some common to David Hinds' PCMCIA package. |
| This is only in the support-all-kernels source code. */ |
| |
| #define RUN_AT(x) (jiffies + (x)) |
| |
| #include <linux/delay.h> |
| |
| |
| static char version[] __devinitdata = |
| DRV_NAME ": Donald Becker and others. www.scyld.com/network/vortex.html\n"; |
| |
| MODULE_AUTHOR("Donald Becker <becker@scyld.com>"); |
| MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver " |
| DRV_VERSION " " DRV_RELDATE); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(DRV_VERSION); |
| |
| |
| /* Operational parameter that usually are not changed. */ |
| |
| /* The Vortex size is twice that of the original EtherLinkIII series: the |
| runtime register window, window 1, is now always mapped in. |
| The Boomerang size is twice as large as the Vortex -- it has additional |
| bus master control registers. */ |
| #define VORTEX_TOTAL_SIZE 0x20 |
| #define BOOMERANG_TOTAL_SIZE 0x40 |
| |
| /* Set iff a MII transceiver on any interface requires mdio preamble. |
| This only set with the original DP83840 on older 3c905 boards, so the extra |
| code size of a per-interface flag is not worthwhile. */ |
| static char mii_preamble_required; |
| |
| #define PFX DRV_NAME ": " |
| |
| |
| |
| /* |
| Theory of Operation |
| |
| I. Board Compatibility |
| |
| This device driver is designed for the 3Com FastEtherLink and FastEtherLink |
| XL, 3Com's PCI to 10/100baseT adapters. It also works with the 10Mbs |
| versions of the FastEtherLink cards. The supported product IDs are |
| 3c590, 3c592, 3c595, 3c597, 3c900, 3c905 |
| |
| The related ISA 3c515 is supported with a separate driver, 3c515.c, included |
| with the kernel source or available from |
| cesdis.gsfc.nasa.gov:/pub/linux/drivers/3c515.html |
| |
| II. Board-specific settings |
| |
| PCI bus devices are configured by the system at boot time, so no jumpers |
| need to be set on the board. The system BIOS should be set to assign the |
| PCI INTA signal to an otherwise unused system IRQ line. |
| |
| The EEPROM settings for media type and forced-full-duplex are observed. |
| The EEPROM media type should be left at the default "autoselect" unless using |
| 10base2 or AUI connections which cannot be reliably detected. |
| |
| III. Driver operation |
| |
| The 3c59x series use an interface that's very similar to the previous 3c5x9 |
| series. The primary interface is two programmed-I/O FIFOs, with an |
| alternate single-contiguous-region bus-master transfer (see next). |
| |
| The 3c900 "Boomerang" series uses a full-bus-master interface with separate |
| lists of transmit and receive descriptors, similar to the AMD LANCE/PCnet, |
| DEC Tulip and Intel Speedo3. The first chip version retains a compatible |
| programmed-I/O interface that has been removed in 'B' and subsequent board |
| revisions. |
| |
| One extension that is advertised in a very large font is that the adapters |
| are capable of being bus masters. On the Vortex chip this capability was |
| only for a single contiguous region making it far less useful than the full |
| bus master capability. There is a significant performance impact of taking |
| an extra interrupt or polling for the completion of each transfer, as well |
| as difficulty sharing the single transfer engine between the transmit and |
| receive threads. Using DMA transfers is a win only with large blocks or |
| with the flawed versions of the Intel Orion motherboard PCI controller. |
| |
| The Boomerang chip's full-bus-master interface is useful, and has the |
| currently-unused advantages over other similar chips that queued transmit |
| packets may be reordered and receive buffer groups are associated with a |
| single frame. |
| |
| With full-bus-master support, this driver uses a "RX_COPYBREAK" scheme. |
| Rather than a fixed intermediate receive buffer, this scheme allocates |
| full-sized skbuffs as receive buffers. The value RX_COPYBREAK is used as |
| the copying breakpoint: it is chosen to trade-off the memory wasted by |
| passing the full-sized skbuff to the queue layer for all frames vs. the |
| copying cost of copying a frame to a correctly-sized skbuff. |
| |
| IIIC. Synchronization |
| The driver runs as two independent, single-threaded flows of control. One |
| is the send-packet routine, which enforces single-threaded use by the |
| dev->tbusy flag. The other thread is the interrupt handler, which is single |
| threaded by the hardware and other software. |
| |
| IV. Notes |
| |
| Thanks to Cameron Spitzer and Terry Murphy of 3Com for providing development |
| 3c590, 3c595, and 3c900 boards. |
| The name "Vortex" is the internal 3Com project name for the PCI ASIC, and |
| the EISA version is called "Demon". According to Terry these names come |
| from rides at the local amusement park. |
| |
| The new chips support both ethernet (1.5K) and FDDI (4.5K) packet sizes! |
| This driver only supports ethernet packets because of the skbuff allocation |
| limit of 4K. |
| */ |
| |
| /* This table drives the PCI probe routines. It's mostly boilerplate in all |
| of the drivers, and will likely be provided by some future kernel. |
| */ |
| enum pci_flags_bit { |
| PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4, |
| PCI_ADDR0=0x10<<0, PCI_ADDR1=0x10<<1, PCI_ADDR2=0x10<<2, PCI_ADDR3=0x10<<3, |
| }; |
| |
| enum { IS_VORTEX=1, IS_BOOMERANG=2, IS_CYCLONE=4, IS_TORNADO=8, |
| EEPROM_8BIT=0x10, /* AKPM: Uses 0x230 as the base bitmaps for EEPROM reads */ |
| HAS_PWR_CTRL=0x20, HAS_MII=0x40, HAS_NWAY=0x80, HAS_CB_FNS=0x100, |
| INVERT_MII_PWR=0x200, INVERT_LED_PWR=0x400, MAX_COLLISION_RESET=0x800, |
| EEPROM_OFFSET=0x1000, HAS_HWCKSM=0x2000, WNO_XCVR_PWR=0x4000, |
| EXTRA_PREAMBLE=0x8000, EEPROM_RESET=0x10000, }; |
| |
| enum vortex_chips { |
| CH_3C590 = 0, |
| CH_3C592, |
| CH_3C597, |
| CH_3C595_1, |
| CH_3C595_2, |
| |
| CH_3C595_3, |
| CH_3C900_1, |
| CH_3C900_2, |
| CH_3C900_3, |
| CH_3C900_4, |
| |
| CH_3C900_5, |
| CH_3C900B_FL, |
| CH_3C905_1, |
| CH_3C905_2, |
| CH_3C905B_1, |
| |
| CH_3C905B_2, |
| CH_3C905B_FX, |
| CH_3C905C, |
| CH_3C9202, |
| CH_3C980, |
| CH_3C9805, |
| |
| CH_3CSOHO100_TX, |
| CH_3C555, |
| CH_3C556, |
| CH_3C556B, |
| CH_3C575, |
| |
| CH_3C575_1, |
| CH_3CCFE575, |
| CH_3CCFE575CT, |
| CH_3CCFE656, |
| CH_3CCFEM656, |
| |
| CH_3CCFEM656_1, |
| CH_3C450, |
| CH_3C920, |
| CH_3C982A, |
| CH_3C982B, |
| |
| CH_905BT4, |
| CH_920B_EMB_WNM, |
| }; |
| |
| |
| /* note: this array directly indexed by above enums, and MUST |
| * be kept in sync with both the enums above, and the PCI device |
| * table below |
| */ |
| static struct vortex_chip_info { |
| const char *name; |
| int flags; |
| int drv_flags; |
| int io_size; |
| } vortex_info_tbl[] __devinitdata = { |
| {"3c590 Vortex 10Mbps", |
| PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c592 EISA 10Mbps Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */ |
| PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c597 EISA Fast Demon/Vortex", /* AKPM: from Don's 3c59x_cb.c 0.49H */ |
| PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c595 Vortex 100baseTx", |
| PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c595 Vortex 100baseT4", |
| PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, }, |
| |
| {"3c595 Vortex 100base-MII", |
| PCI_USES_IO|PCI_USES_MASTER, IS_VORTEX, 32, }, |
| {"3c900 Boomerang 10baseT", |
| PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, }, |
| {"3c900 Boomerang 10Mbps Combo", |
| PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|EEPROM_RESET, 64, }, |
| {"3c900 Cyclone 10Mbps TPO", /* AKPM: from Don's 0.99M */ |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c900 Cyclone 10Mbps Combo", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| |
| {"3c900 Cyclone 10Mbps TPC", /* AKPM: from Don's 0.99M */ |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c900B-FL Cyclone 10base-FL", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c905 Boomerang 100baseTx", |
| PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, }, |
| {"3c905 Boomerang 100baseT4", |
| PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_RESET, 64, }, |
| {"3c905B Cyclone 100baseTx", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| |
| {"3c905B Cyclone 10/100/BNC", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3c905B-FX Cyclone 100baseFx", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| {"3c905C Tornado", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, }, |
| {"3c980 Cyclone", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, |
| |
| {"3c980C Python-T", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3cSOHO100-TX Hurricane", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3c555 Laptop Hurricane", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, }, |
| {"3c556 Laptop Tornado", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_8BIT|HAS_CB_FNS|INVERT_MII_PWR| |
| HAS_HWCKSM, 128, }, |
| {"3c556B Laptop Hurricane", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|EEPROM_OFFSET|HAS_CB_FNS|INVERT_MII_PWR| |
| WNO_XCVR_PWR|HAS_HWCKSM, 128, }, |
| |
| {"3c575 [Megahertz] 10/100 LAN CardBus", |
| PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, }, |
| {"3c575 Boomerang CardBus", |
| PCI_USES_IO|PCI_USES_MASTER, IS_BOOMERANG|HAS_MII|EEPROM_8BIT, 128, }, |
| {"3CCFE575BT Cyclone CardBus", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT| |
| INVERT_LED_PWR|HAS_HWCKSM, 128, }, |
| {"3CCFE575CT Tornado CardBus", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| MAX_COLLISION_RESET|HAS_HWCKSM, 128, }, |
| {"3CCFE656 Cyclone CardBus", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| INVERT_LED_PWR|HAS_HWCKSM, 128, }, |
| |
| {"3CCFEM656B Cyclone+Winmodem CardBus", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| INVERT_LED_PWR|HAS_HWCKSM, 128, }, |
| {"3CXFEM656C Tornado+Winmodem CardBus", /* From pcmcia-cs-3.1.5 */ |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_CB_FNS|EEPROM_8BIT|INVERT_MII_PWR| |
| MAX_COLLISION_RESET|HAS_HWCKSM, 128, }, |
| {"3c450 HomePNA Tornado", /* AKPM: from Don's 0.99Q */ |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3c920 Tornado", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, }, |
| {"3c982 Hydra Dual Port A", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, }, |
| |
| {"3c982 Hydra Dual Port B", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_HWCKSM|HAS_NWAY, 128, }, |
| {"3c905B-T4", |
| PCI_USES_IO|PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, |
| {"3c920B-EMB-WNM Tornado", |
| PCI_USES_IO|PCI_USES_MASTER, IS_TORNADO|HAS_NWAY|HAS_HWCKSM, 128, }, |
| |
| {NULL,}, /* NULL terminated list. */ |
| }; |
| |
| |
| static struct pci_device_id vortex_pci_tbl[] = { |
| { 0x10B7, 0x5900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C590 }, |
| { 0x10B7, 0x5920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C592 }, |
| { 0x10B7, 0x5970, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C597 }, |
| { 0x10B7, 0x5950, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_1 }, |
| { 0x10B7, 0x5951, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_2 }, |
| |
| { 0x10B7, 0x5952, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C595_3 }, |
| { 0x10B7, 0x9000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_1 }, |
| { 0x10B7, 0x9001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_2 }, |
| { 0x10B7, 0x9004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_3 }, |
| { 0x10B7, 0x9005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_4 }, |
| |
| { 0x10B7, 0x9006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900_5 }, |
| { 0x10B7, 0x900A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C900B_FL }, |
| { 0x10B7, 0x9050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_1 }, |
| { 0x10B7, 0x9051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905_2 }, |
| { 0x10B7, 0x9055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_1 }, |
| |
| { 0x10B7, 0x9058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_2 }, |
| { 0x10B7, 0x905A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905B_FX }, |
| { 0x10B7, 0x9200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C905C }, |
| { 0x10B7, 0x9202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9202 }, |
| { 0x10B7, 0x9800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C980 }, |
| { 0x10B7, 0x9805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C9805 }, |
| |
| { 0x10B7, 0x7646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CSOHO100_TX }, |
| { 0x10B7, 0x5055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C555 }, |
| { 0x10B7, 0x6055, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556 }, |
| { 0x10B7, 0x6056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C556B }, |
| { 0x10B7, 0x5b57, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575 }, |
| |
| { 0x10B7, 0x5057, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C575_1 }, |
| { 0x10B7, 0x5157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575 }, |
| { 0x10B7, 0x5257, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE575CT }, |
| { 0x10B7, 0x6560, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFE656 }, |
| { 0x10B7, 0x6562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656 }, |
| |
| { 0x10B7, 0x6564, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3CCFEM656_1 }, |
| { 0x10B7, 0x4500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C450 }, |
| { 0x10B7, 0x9201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C920 }, |
| { 0x10B7, 0x1201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982A }, |
| { 0x10B7, 0x1202, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_3C982B }, |
| |
| { 0x10B7, 0x9056, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_905BT4 }, |
| { 0x10B7, 0x9210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_920B_EMB_WNM }, |
| |
| {0,} /* 0 terminated list. */ |
| }; |
| MODULE_DEVICE_TABLE(pci, vortex_pci_tbl); |
| |
| |
| /* Operational definitions. |
| These are not used by other compilation units and thus are not |
| exported in a ".h" file. |
| |
| First the windows. There are eight register windows, with the command |
| and status registers available in each. |
| */ |
| #define EL3WINDOW(win_num) iowrite16(SelectWindow + (win_num), ioaddr + EL3_CMD) |
| #define EL3_CMD 0x0e |
| #define EL3_STATUS 0x0e |
| |
| /* The top five bits written to EL3_CMD are a command, the lower |
| 11 bits are the parameter, if applicable. |
| Note that 11 parameters bits was fine for ethernet, but the new chip |
| can handle FDDI length frames (~4500 octets) and now parameters count |
| 32-bit 'Dwords' rather than octets. */ |
| |
| enum vortex_cmd { |
| TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, |
| RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, |
| UpStall = 6<<11, UpUnstall = (6<<11)+1, |
| DownStall = (6<<11)+2, DownUnstall = (6<<11)+3, |
| RxDiscard = 8<<11, TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, |
| FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, |
| SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, |
| SetTxThreshold = 18<<11, SetTxStart = 19<<11, |
| StartDMAUp = 20<<11, StartDMADown = (20<<11)+1, StatsEnable = 21<<11, |
| StatsDisable = 22<<11, StopCoax = 23<<11, SetFilterBit = 25<<11,}; |
| |
| /* The SetRxFilter command accepts the following classes: */ |
| enum RxFilter { |
| RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 }; |
| |
| /* Bits in the general status register. */ |
| enum vortex_status { |
| IntLatch = 0x0001, HostError = 0x0002, TxComplete = 0x0004, |
| TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, |
| IntReq = 0x0040, StatsFull = 0x0080, |
| DMADone = 1<<8, DownComplete = 1<<9, UpComplete = 1<<10, |
| DMAInProgress = 1<<11, /* DMA controller is still busy.*/ |
| CmdInProgress = 1<<12, /* EL3_CMD is still busy.*/ |
| }; |
| |
| /* Register window 1 offsets, the window used in normal operation. |
| On the Vortex this window is always mapped at offsets 0x10-0x1f. */ |
| enum Window1 { |
| TX_FIFO = 0x10, RX_FIFO = 0x10, RxErrors = 0x14, |
| RxStatus = 0x18, Timer=0x1A, TxStatus = 0x1B, |
| TxFree = 0x1C, /* Remaining free bytes in Tx buffer. */ |
| }; |
| enum Window0 { |
| Wn0EepromCmd = 10, /* Window 0: EEPROM command register. */ |
| Wn0EepromData = 12, /* Window 0: EEPROM results register. */ |
| IntrStatus=0x0E, /* Valid in all windows. */ |
| }; |
| enum Win0_EEPROM_bits { |
| EEPROM_Read = 0x80, EEPROM_WRITE = 0x40, EEPROM_ERASE = 0xC0, |
| EEPROM_EWENB = 0x30, /* Enable erasing/writing for 10 msec. */ |
| EEPROM_EWDIS = 0x00, /* Disable EWENB before 10 msec timeout. */ |
| }; |
| /* EEPROM locations. */ |
| enum eeprom_offset { |
| PhysAddr01=0, PhysAddr23=1, PhysAddr45=2, ModelID=3, |
| EtherLink3ID=7, IFXcvrIO=8, IRQLine=9, |
| NodeAddr01=10, NodeAddr23=11, NodeAddr45=12, |
| DriverTune=13, Checksum=15}; |
| |
| enum Window2 { /* Window 2. */ |
| Wn2_ResetOptions=12, |
| }; |
| enum Window3 { /* Window 3: MAC/config bits. */ |
| Wn3_Config=0, Wn3_MaxPktSize=4, Wn3_MAC_Ctrl=6, Wn3_Options=8, |
| }; |
| |
| #define BFEXT(value, offset, bitcount) \ |
| ((((unsigned long)(value)) >> (offset)) & ((1 << (bitcount)) - 1)) |
| |
| #define BFINS(lhs, rhs, offset, bitcount) \ |
| (((lhs) & ~((((1 << (bitcount)) - 1)) << (offset))) | \ |
| (((rhs) & ((1 << (bitcount)) - 1)) << (offset))) |
| |
| #define RAM_SIZE(v) BFEXT(v, 0, 3) |
| #define RAM_WIDTH(v) BFEXT(v, 3, 1) |
| #define RAM_SPEED(v) BFEXT(v, 4, 2) |
| #define ROM_SIZE(v) BFEXT(v, 6, 2) |
| #define RAM_SPLIT(v) BFEXT(v, 16, 2) |
| #define XCVR(v) BFEXT(v, 20, 4) |
| #define AUTOSELECT(v) BFEXT(v, 24, 1) |
| |
| enum Window4 { /* Window 4: Xcvr/media bits. */ |
| Wn4_FIFODiag = 4, Wn4_NetDiag = 6, Wn4_PhysicalMgmt=8, Wn4_Media = 10, |
| }; |
| enum Win4_Media_bits { |
| Media_SQE = 0x0008, /* Enable SQE error counting for AUI. */ |
| Media_10TP = 0x00C0, /* Enable link beat and jabber for 10baseT. */ |
| Media_Lnk = 0x0080, /* Enable just link beat for 100TX/100FX. */ |
| Media_LnkBeat = 0x0800, |
| }; |
| enum Window7 { /* Window 7: Bus Master control. */ |
| Wn7_MasterAddr = 0, Wn7_VlanEtherType=4, Wn7_MasterLen = 6, |
| Wn7_MasterStatus = 12, |
| }; |
| /* Boomerang bus master control registers. */ |
| enum MasterCtrl { |
| PktStatus = 0x20, DownListPtr = 0x24, FragAddr = 0x28, FragLen = 0x2c, |
| TxFreeThreshold = 0x2f, UpPktStatus = 0x30, UpListPtr = 0x38, |
| }; |
| |
| /* The Rx and Tx descriptor lists. |
| Caution Alpha hackers: these types are 32 bits! Note also the 8 byte |
| alignment contraint on tx_ring[] and rx_ring[]. */ |
| #define LAST_FRAG 0x80000000 /* Last Addr/Len pair in descriptor. */ |
| #define DN_COMPLETE 0x00010000 /* This packet has been downloaded */ |
| struct boom_rx_desc { |
| u32 next; /* Last entry points to 0. */ |
| s32 status; |
| u32 addr; /* Up to 63 addr/len pairs possible. */ |
| s32 length; /* Set LAST_FRAG to indicate last pair. */ |
| }; |
| /* Values for the Rx status entry. */ |
| enum rx_desc_status { |
| RxDComplete=0x00008000, RxDError=0x4000, |
| /* See boomerang_rx() for actual error bits */ |
| IPChksumErr=1<<25, TCPChksumErr=1<<26, UDPChksumErr=1<<27, |
| IPChksumValid=1<<29, TCPChksumValid=1<<30, UDPChksumValid=1<<31, |
| }; |
| |
| #ifdef MAX_SKB_FRAGS |
| #define DO_ZEROCOPY 1 |
| #else |
| #define DO_ZEROCOPY 0 |
| #endif |
| |
| struct boom_tx_desc { |
| u32 next; /* Last entry points to 0. */ |
| s32 status; /* bits 0:12 length, others see below. */ |
| #if DO_ZEROCOPY |
| struct { |
| u32 addr; |
| s32 length; |
| } frag[1+MAX_SKB_FRAGS]; |
| #else |
| u32 addr; |
| s32 length; |
| #endif |
| }; |
| |
| /* Values for the Tx status entry. */ |
| enum tx_desc_status { |
| CRCDisable=0x2000, TxDComplete=0x8000, |
| AddIPChksum=0x02000000, AddTCPChksum=0x04000000, AddUDPChksum=0x08000000, |
| TxIntrUploaded=0x80000000, /* IRQ when in FIFO, but maybe not sent. */ |
| }; |
| |
| /* Chip features we care about in vp->capabilities, read from the EEPROM. */ |
| enum ChipCaps { CapBusMaster=0x20, CapPwrMgmt=0x2000 }; |
| |
| struct vortex_extra_stats { |
| unsigned long tx_deferred; |
| unsigned long tx_multiple_collisions; |
| unsigned long rx_bad_ssd; |
| }; |
| |
| struct vortex_private { |
| /* The Rx and Tx rings should be quad-word-aligned. */ |
| struct boom_rx_desc* rx_ring; |
| struct boom_tx_desc* tx_ring; |
| dma_addr_t rx_ring_dma; |
| dma_addr_t tx_ring_dma; |
| /* The addresses of transmit- and receive-in-place skbuffs. */ |
| struct sk_buff* rx_skbuff[RX_RING_SIZE]; |
| struct sk_buff* tx_skbuff[TX_RING_SIZE]; |
| unsigned int cur_rx, cur_tx; /* The next free ring entry */ |
| unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */ |
| struct net_device_stats stats; /* Generic stats */ |
| struct vortex_extra_stats xstats; /* NIC-specific extra stats */ |
| struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */ |
| dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */ |
| |
| /* PCI configuration space information. */ |
| struct device *gendev; |
| void __iomem *ioaddr; /* IO address space */ |
| void __iomem *cb_fn_base; /* CardBus function status addr space. */ |
| |
| /* Some values here only for performance evaluation and path-coverage */ |
| int rx_nocopy, rx_copy, queued_packet, rx_csumhits; |
| int card_idx; |
| |
| /* The remainder are related to chip state, mostly media selection. */ |
| struct timer_list timer; /* Media selection timer. */ |
| struct timer_list rx_oom_timer; /* Rx skb allocation retry timer */ |
| int options; /* User-settable misc. driver options. */ |
| unsigned int media_override:4, /* Passed-in media type. */ |
| default_media:4, /* Read from the EEPROM/Wn3_Config. */ |
| full_duplex:1, force_fd:1, autoselect:1, |
| bus_master:1, /* Vortex can only do a fragment bus-m. */ |
| full_bus_master_tx:1, full_bus_master_rx:2, /* Boomerang */ |
| flow_ctrl:1, /* Use 802.3x flow control (PAUSE only) */ |
| partner_flow_ctrl:1, /* Partner supports flow control */ |
| has_nway:1, |
| enable_wol:1, /* Wake-on-LAN is enabled */ |
| pm_state_valid:1, /* pci_dev->saved_config_space has sane contents */ |
| open:1, |
| medialock:1, |
| must_free_region:1, /* Flag: if zero, Cardbus owns the I/O region */ |
| large_frames:1; /* accept large frames */ |
| int drv_flags; |
| u16 status_enable; |
| u16 intr_enable; |
| u16 available_media; /* From Wn3_Options. */ |
| u16 capabilities, info1, info2; /* Various, from EEPROM. */ |
| u16 advertising; /* NWay media advertisement */ |
| unsigned char phys[2]; /* MII device addresses. */ |
| u16 deferred; /* Resend these interrupts when we |
| * bale from the ISR */ |
| u16 io_size; /* Size of PCI region (for release_region) */ |
| spinlock_t lock; /* Serialise access to device & its vortex_private */ |
| struct mii_if_info mii; /* MII lib hooks/info */ |
| }; |
| |
| #ifdef CONFIG_PCI |
| #define DEVICE_PCI(dev) (((dev)->bus == &pci_bus_type) ? to_pci_dev((dev)) : NULL) |
| #else |
| #define DEVICE_PCI(dev) NULL |
| #endif |
| |
| #define VORTEX_PCI(vp) (((vp)->gendev) ? DEVICE_PCI((vp)->gendev) : NULL) |
| |
| #ifdef CONFIG_EISA |
| #define DEVICE_EISA(dev) (((dev)->bus == &eisa_bus_type) ? to_eisa_device((dev)) : NULL) |
| #else |
| #define DEVICE_EISA(dev) NULL |
| #endif |
| |
| #define VORTEX_EISA(vp) (((vp)->gendev) ? DEVICE_EISA((vp)->gendev) : NULL) |
| |
| /* The action to take with a media selection timer tick. |
| Note that we deviate from the 3Com order by checking 10base2 before AUI. |
| */ |
| enum xcvr_types { |
| XCVR_10baseT=0, XCVR_AUI, XCVR_10baseTOnly, XCVR_10base2, XCVR_100baseTx, |
| XCVR_100baseFx, XCVR_MII=6, XCVR_NWAY=8, XCVR_ExtMII=9, XCVR_Default=10, |
| }; |
| |
| static struct media_table { |
| char *name; |
| unsigned int media_bits:16, /* Bits to set in Wn4_Media register. */ |
| mask:8, /* The transceiver-present bit in Wn3_Config.*/ |
| next:8; /* The media type to try next. */ |
| int wait; /* Time before we check media status. */ |
| } media_tbl[] = { |
| { "10baseT", Media_10TP,0x08, XCVR_10base2, (14*HZ)/10}, |
| { "10Mbs AUI", Media_SQE, 0x20, XCVR_Default, (1*HZ)/10}, |
| { "undefined", 0, 0x80, XCVR_10baseT, 10000}, |
| { "10base2", 0, 0x10, XCVR_AUI, (1*HZ)/10}, |
| { "100baseTX", Media_Lnk, 0x02, XCVR_100baseFx, (14*HZ)/10}, |
| { "100baseFX", Media_Lnk, 0x04, XCVR_MII, (14*HZ)/10}, |
| { "MII", 0, 0x41, XCVR_10baseT, 3*HZ }, |
| { "undefined", 0, 0x01, XCVR_10baseT, 10000}, |
| { "Autonegotiate", 0, 0x41, XCVR_10baseT, 3*HZ}, |
| { "MII-External", 0, 0x41, XCVR_10baseT, 3*HZ }, |
| { "Default", 0, 0xFF, XCVR_10baseT, 10000}, |
| }; |
| |
| static struct { |
| const char str[ETH_GSTRING_LEN]; |
| } ethtool_stats_keys[] = { |
| { "tx_deferred" }, |
| { "tx_multiple_collisions" }, |
| { "rx_bad_ssd" }, |
| }; |
| |
| /* number of ETHTOOL_GSTATS u64's */ |
| #define VORTEX_NUM_STATS 3 |
| |
| static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq, |
| int chip_idx, int card_idx); |
| static void vortex_up(struct net_device *dev); |
| static void vortex_down(struct net_device *dev, int final); |
| static int vortex_open(struct net_device *dev); |
| static void mdio_sync(void __iomem *ioaddr, int bits); |
| static int mdio_read(struct net_device *dev, int phy_id, int location); |
| static void mdio_write(struct net_device *vp, int phy_id, int location, int value); |
| static void vortex_timer(unsigned long arg); |
| static void rx_oom_timer(unsigned long arg); |
| static int vortex_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| static int boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| static int vortex_rx(struct net_device *dev); |
| static int boomerang_rx(struct net_device *dev); |
| static irqreturn_t vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs); |
| static irqreturn_t boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs); |
| static int vortex_close(struct net_device *dev); |
| static void dump_tx_ring(struct net_device *dev); |
| static void update_stats(void __iomem *ioaddr, struct net_device *dev); |
| static struct net_device_stats *vortex_get_stats(struct net_device *dev); |
| static void set_rx_mode(struct net_device *dev); |
| #ifdef CONFIG_PCI |
| static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| #endif |
| static void vortex_tx_timeout(struct net_device *dev); |
| static void acpi_set_WOL(struct net_device *dev); |
| static struct ethtool_ops vortex_ethtool_ops; |
| static void set_8021q_mode(struct net_device *dev, int enable); |
| |
| |
| /* This driver uses 'options' to pass the media type, full-duplex flag, etc. */ |
| /* Option count limit only -- unlimited interfaces are supported. */ |
| #define MAX_UNITS 8 |
| static int options[MAX_UNITS] = { [0 ... MAX_UNITS-1] = -1 }; |
| static int full_duplex[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int hw_checksums[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int flow_ctrl[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int enable_wol[MAX_UNITS] = {[0 ... MAX_UNITS-1] = -1 }; |
| static int global_options = -1; |
| static int global_full_duplex = -1; |
| static int global_enable_wol = -1; |
| |
| /* #define dev_alloc_skb dev_alloc_skb_debug */ |
| |
| /* Variables to work-around the Compaq PCI BIOS32 problem. */ |
| static int compaq_ioaddr, compaq_irq, compaq_device_id = 0x5900; |
| static struct net_device *compaq_net_device; |
| |
| static int vortex_cards_found; |
| |
| module_param(debug, int, 0); |
| module_param(global_options, int, 0); |
| module_param_array(options, int, NULL, 0); |
| module_param(global_full_duplex, int, 0); |
| module_param_array(full_duplex, int, NULL, 0); |
| module_param_array(hw_checksums, int, NULL, 0); |
| module_param_array(flow_ctrl, int, NULL, 0); |
| module_param(global_enable_wol, int, 0); |
| module_param_array(enable_wol, int, NULL, 0); |
| module_param(rx_copybreak, int, 0); |
| module_param(max_interrupt_work, int, 0); |
| module_param(compaq_ioaddr, int, 0); |
| module_param(compaq_irq, int, 0); |
| module_param(compaq_device_id, int, 0); |
| module_param(watchdog, int, 0); |
| MODULE_PARM_DESC(debug, "3c59x debug level (0-6)"); |
| MODULE_PARM_DESC(options, "3c59x: Bits 0-3: media type, bit 4: bus mastering, bit 9: full duplex"); |
| MODULE_PARM_DESC(global_options, "3c59x: same as options, but applies to all NICs if options is unset"); |
| MODULE_PARM_DESC(full_duplex, "3c59x full duplex setting(s) (1)"); |
| MODULE_PARM_DESC(global_full_duplex, "3c59x: same as full_duplex, but applies to all NICs if full_duplex is unset"); |
| MODULE_PARM_DESC(hw_checksums, "3c59x Hardware checksum checking by adapter(s) (0-1)"); |
| MODULE_PARM_DESC(flow_ctrl, "3c59x 802.3x flow control usage (PAUSE only) (0-1)"); |
| MODULE_PARM_DESC(enable_wol, "3c59x: Turn on Wake-on-LAN for adapter(s) (0-1)"); |
| MODULE_PARM_DESC(global_enable_wol, "3c59x: same as enable_wol, but applies to all NICs if enable_wol is unset"); |
| MODULE_PARM_DESC(rx_copybreak, "3c59x copy breakpoint for copy-only-tiny-frames"); |
| MODULE_PARM_DESC(max_interrupt_work, "3c59x maximum events handled per interrupt"); |
| MODULE_PARM_DESC(compaq_ioaddr, "3c59x PCI I/O base address (Compaq BIOS problem workaround)"); |
| MODULE_PARM_DESC(compaq_irq, "3c59x PCI IRQ number (Compaq BIOS problem workaround)"); |
| MODULE_PARM_DESC(compaq_device_id, "3c59x PCI device ID (Compaq BIOS problem workaround)"); |
| MODULE_PARM_DESC(watchdog, "3c59x transmit timeout in milliseconds"); |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| static void poll_vortex(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| unsigned long flags; |
| local_save_flags(flags); |
| local_irq_disable(); |
| (vp->full_bus_master_rx ? boomerang_interrupt:vortex_interrupt)(dev->irq,dev,NULL); |
| local_irq_restore(flags); |
| } |
| #endif |
| |
| #ifdef CONFIG_PM |
| |
| static int vortex_suspend (struct pci_dev *pdev, pm_message_t state) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| |
| if (dev && dev->priv) { |
| if (netif_running(dev)) { |
| netif_device_detach(dev); |
| vortex_down(dev, 1); |
| } |
| pci_save_state(pdev); |
| pci_enable_wake(pdev, pci_choose_state(pdev, state), 0); |
| free_irq(dev->irq, dev); |
| pci_disable_device(pdev); |
| pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| } |
| return 0; |
| } |
| |
| static int vortex_resume (struct pci_dev *pdev) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| struct vortex_private *vp = netdev_priv(dev); |
| |
| if (dev && vp) { |
| pci_set_power_state(pdev, PCI_D0); |
| pci_restore_state(pdev); |
| pci_enable_device(pdev); |
| pci_set_master(pdev); |
| if (request_irq(dev->irq, vp->full_bus_master_rx ? |
| &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev)) { |
| printk(KERN_WARNING "%s: Could not reserve IRQ %d\n", dev->name, dev->irq); |
| pci_disable_device(pdev); |
| return -EBUSY; |
| } |
| if (netif_running(dev)) { |
| vortex_up(dev); |
| netif_device_attach(dev); |
| } |
| } |
| return 0; |
| } |
| |
| #endif /* CONFIG_PM */ |
| |
| #ifdef CONFIG_EISA |
| static struct eisa_device_id vortex_eisa_ids[] = { |
| { "TCM5920", CH_3C592 }, |
| { "TCM5970", CH_3C597 }, |
| { "" } |
| }; |
| |
| static int vortex_eisa_probe (struct device *device); |
| static int vortex_eisa_remove (struct device *device); |
| |
| static struct eisa_driver vortex_eisa_driver = { |
| .id_table = vortex_eisa_ids, |
| .driver = { |
| .name = "3c59x", |
| .probe = vortex_eisa_probe, |
| .remove = vortex_eisa_remove |
| } |
| }; |
| |
| static int vortex_eisa_probe (struct device *device) |
| { |
| void __iomem *ioaddr; |
| struct eisa_device *edev; |
| |
| edev = to_eisa_device (device); |
| |
| if (!request_region(edev->base_addr, VORTEX_TOTAL_SIZE, DRV_NAME)) |
| return -EBUSY; |
| |
| ioaddr = ioport_map(edev->base_addr, VORTEX_TOTAL_SIZE); |
| |
| if (vortex_probe1(device, ioaddr, ioread16(ioaddr + 0xC88) >> 12, |
| edev->id.driver_data, vortex_cards_found)) { |
| release_region (edev->base_addr, VORTEX_TOTAL_SIZE); |
| return -ENODEV; |
| } |
| |
| vortex_cards_found++; |
| |
| return 0; |
| } |
| |
| static int vortex_eisa_remove (struct device *device) |
| { |
| struct eisa_device *edev; |
| struct net_device *dev; |
| struct vortex_private *vp; |
| void __iomem *ioaddr; |
| |
| edev = to_eisa_device (device); |
| dev = eisa_get_drvdata (edev); |
| |
| if (!dev) { |
| printk("vortex_eisa_remove called for Compaq device!\n"); |
| BUG(); |
| } |
| |
| vp = netdev_priv(dev); |
| ioaddr = vp->ioaddr; |
| |
| unregister_netdev (dev); |
| iowrite16 (TotalReset|0x14, ioaddr + EL3_CMD); |
| release_region (dev->base_addr, VORTEX_TOTAL_SIZE); |
| |
| free_netdev (dev); |
| return 0; |
| } |
| #endif |
| |
| /* returns count found (>= 0), or negative on error */ |
| static int __init vortex_eisa_init (void) |
| { |
| int eisa_found = 0; |
| int orig_cards_found = vortex_cards_found; |
| |
| #ifdef CONFIG_EISA |
| if (eisa_driver_register (&vortex_eisa_driver) >= 0) { |
| /* Because of the way EISA bus is probed, we cannot assume |
| * any device have been found when we exit from |
| * eisa_driver_register (the bus root driver may not be |
| * initialized yet). So we blindly assume something was |
| * found, and let the sysfs magic happend... */ |
| |
| eisa_found = 1; |
| } |
| #endif |
| |
| /* Special code to work-around the Compaq PCI BIOS32 problem. */ |
| if (compaq_ioaddr) { |
| vortex_probe1(NULL, ioport_map(compaq_ioaddr, VORTEX_TOTAL_SIZE), |
| compaq_irq, compaq_device_id, vortex_cards_found++); |
| } |
| |
| return vortex_cards_found - orig_cards_found + eisa_found; |
| } |
| |
| /* returns count (>= 0), or negative on error */ |
| static int __devinit vortex_init_one (struct pci_dev *pdev, |
| const struct pci_device_id *ent) |
| { |
| int rc; |
| |
| /* wake up and enable device */ |
| rc = pci_enable_device (pdev); |
| if (rc < 0) |
| goto out; |
| |
| rc = vortex_probe1 (&pdev->dev, pci_iomap(pdev, 0, 0), |
| pdev->irq, ent->driver_data, vortex_cards_found); |
| if (rc < 0) { |
| pci_disable_device (pdev); |
| goto out; |
| } |
| |
| vortex_cards_found++; |
| |
| out: |
| return rc; |
| } |
| |
| /* |
| * Start up the PCI/EISA device which is described by *gendev. |
| * Return 0 on success. |
| * |
| * NOTE: pdev can be NULL, for the case of a Compaq device |
| */ |
| static int __devinit vortex_probe1(struct device *gendev, |
| void __iomem *ioaddr, int irq, |
| int chip_idx, int card_idx) |
| { |
| struct vortex_private *vp; |
| int option; |
| unsigned int eeprom[0x40], checksum = 0; /* EEPROM contents */ |
| int i, step; |
| struct net_device *dev; |
| static int printed_version; |
| int retval, print_info; |
| struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx]; |
| char *print_name = "3c59x"; |
| struct pci_dev *pdev = NULL; |
| struct eisa_device *edev = NULL; |
| |
| if (!printed_version) { |
| printk (version); |
| printed_version = 1; |
| } |
| |
| if (gendev) { |
| if ((pdev = DEVICE_PCI(gendev))) { |
| print_name = pci_name(pdev); |
| } |
| |
| if ((edev = DEVICE_EISA(gendev))) { |
| print_name = edev->dev.bus_id; |
| } |
| } |
| |
| dev = alloc_etherdev(sizeof(*vp)); |
| retval = -ENOMEM; |
| if (!dev) { |
| printk (KERN_ERR PFX "unable to allocate etherdev, aborting\n"); |
| goto out; |
| } |
| SET_MODULE_OWNER(dev); |
| SET_NETDEV_DEV(dev, gendev); |
| vp = netdev_priv(dev); |
| |
| option = global_options; |
| |
| /* The lower four bits are the media type. */ |
| if (dev->mem_start) { |
| /* |
| * The 'options' param is passed in as the third arg to the |
| * LILO 'ether=' argument for non-modular use |
| */ |
| option = dev->mem_start; |
| } |
| else if (card_idx < MAX_UNITS) { |
| if (options[card_idx] >= 0) |
| option = options[card_idx]; |
| } |
| |
| if (option > 0) { |
| if (option & 0x8000) |
| vortex_debug = 7; |
| if (option & 0x4000) |
| vortex_debug = 2; |
| if (option & 0x0400) |
| vp->enable_wol = 1; |
| } |
| |
| print_info = (vortex_debug > 1); |
| if (print_info) |
| printk (KERN_INFO "See Documentation/networking/vortex.txt\n"); |
| |
| printk(KERN_INFO "%s: 3Com %s %s at %p. Vers " DRV_VERSION "\n", |
| print_name, |
| pdev ? "PCI" : "EISA", |
| vci->name, |
| ioaddr); |
| |
| dev->base_addr = (unsigned long)ioaddr; |
| dev->irq = irq; |
| dev->mtu = mtu; |
| vp->ioaddr = ioaddr; |
| vp->large_frames = mtu > 1500; |
| vp->drv_flags = vci->drv_flags; |
| vp->has_nway = (vci->drv_flags & HAS_NWAY) ? 1 : 0; |
| vp->io_size = vci->io_size; |
| vp->card_idx = card_idx; |
| |
| /* module list only for Compaq device */ |
| if (gendev == NULL) { |
| compaq_net_device = dev; |
| } |
| |
| /* PCI-only startup logic */ |
| if (pdev) { |
| /* EISA resources already marked, so only PCI needs to do this here */ |
| /* Ignore return value, because Cardbus drivers already allocate for us */ |
| if (request_region(dev->base_addr, vci->io_size, print_name) != NULL) |
| vp->must_free_region = 1; |
| |
| /* enable bus-mastering if necessary */ |
| if (vci->flags & PCI_USES_MASTER) |
| pci_set_master (pdev); |
| |
| if (vci->drv_flags & IS_VORTEX) { |
| u8 pci_latency; |
| u8 new_latency = 248; |
| |
| /* Check the PCI latency value. On the 3c590 series the latency timer |
| must be set to the maximum value to avoid data corruption that occurs |
| when the timer expires during a transfer. This bug exists the Vortex |
| chip only. */ |
| pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &pci_latency); |
| if (pci_latency < new_latency) { |
| printk(KERN_INFO "%s: Overriding PCI latency" |
| " timer (CFLT) setting of %d, new value is %d.\n", |
| print_name, pci_latency, new_latency); |
| pci_write_config_byte(pdev, PCI_LATENCY_TIMER, new_latency); |
| } |
| } |
| } |
| |
| spin_lock_init(&vp->lock); |
| vp->gendev = gendev; |
| vp->mii.dev = dev; |
| vp->mii.mdio_read = mdio_read; |
| vp->mii.mdio_write = mdio_write; |
| vp->mii.phy_id_mask = 0x1f; |
| vp->mii.reg_num_mask = 0x1f; |
| |
| /* Makes sure rings are at least 16 byte aligned. */ |
| vp->rx_ring = pci_alloc_consistent(pdev, sizeof(struct boom_rx_desc) * RX_RING_SIZE |
| + sizeof(struct boom_tx_desc) * TX_RING_SIZE, |
| &vp->rx_ring_dma); |
| retval = -ENOMEM; |
| if (vp->rx_ring == 0) |
| goto free_region; |
| |
| vp->tx_ring = (struct boom_tx_desc *)(vp->rx_ring + RX_RING_SIZE); |
| vp->tx_ring_dma = vp->rx_ring_dma + sizeof(struct boom_rx_desc) * RX_RING_SIZE; |
| |
| /* if we are a PCI driver, we store info in pdev->driver_data |
| * instead of a module list */ |
| if (pdev) |
| pci_set_drvdata(pdev, dev); |
| if (edev) |
| eisa_set_drvdata (edev, dev); |
| |
| vp->media_override = 7; |
| if (option >= 0) { |
| vp->media_override = ((option & 7) == 2) ? 0 : option & 15; |
| if (vp->media_override != 7) |
| vp->medialock = 1; |
| vp->full_duplex = (option & 0x200) ? 1 : 0; |
| vp->bus_master = (option & 16) ? 1 : 0; |
| } |
| |
| if (global_full_duplex > 0) |
| vp->full_duplex = 1; |
| if (global_enable_wol > 0) |
| vp->enable_wol = 1; |
| |
| if (card_idx < MAX_UNITS) { |
| if (full_duplex[card_idx] > 0) |
| vp->full_duplex = 1; |
| if (flow_ctrl[card_idx] > 0) |
| vp->flow_ctrl = 1; |
| if (enable_wol[card_idx] > 0) |
| vp->enable_wol = 1; |
| } |
| |
| vp->force_fd = vp->full_duplex; |
| vp->options = option; |
| /* Read the station address from the EEPROM. */ |
| EL3WINDOW(0); |
| { |
| int base; |
| |
| if (vci->drv_flags & EEPROM_8BIT) |
| base = 0x230; |
| else if (vci->drv_flags & EEPROM_OFFSET) |
| base = EEPROM_Read + 0x30; |
| else |
| base = EEPROM_Read; |
| |
| for (i = 0; i < 0x40; i++) { |
| int timer; |
| iowrite16(base + i, ioaddr + Wn0EepromCmd); |
| /* Pause for at least 162 us. for the read to take place. */ |
| for (timer = 10; timer >= 0; timer--) { |
| udelay(162); |
| if ((ioread16(ioaddr + Wn0EepromCmd) & 0x8000) == 0) |
| break; |
| } |
| eeprom[i] = ioread16(ioaddr + Wn0EepromData); |
| } |
| } |
| for (i = 0; i < 0x18; i++) |
| checksum ^= eeprom[i]; |
| checksum = (checksum ^ (checksum >> 8)) & 0xff; |
| if (checksum != 0x00) { /* Grrr, needless incompatible change 3Com. */ |
| while (i < 0x21) |
| checksum ^= eeprom[i++]; |
| checksum = (checksum ^ (checksum >> 8)) & 0xff; |
| } |
| if ((checksum != 0x00) && !(vci->drv_flags & IS_TORNADO)) |
| printk(" ***INVALID CHECKSUM %4.4x*** ", checksum); |
| for (i = 0; i < 3; i++) |
| ((u16 *)dev->dev_addr)[i] = htons(eeprom[i + 10]); |
| memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
| if (print_info) { |
| for (i = 0; i < 6; i++) |
| printk("%c%2.2x", i ? ':' : ' ', dev->dev_addr[i]); |
| } |
| /* Unfortunately an all zero eeprom passes the checksum and this |
| gets found in the wild in failure cases. Crypto is hard 8) */ |
| if (!is_valid_ether_addr(dev->dev_addr)) { |
| retval = -EINVAL; |
| printk(KERN_ERR "*** EEPROM MAC address is invalid.\n"); |
| goto free_ring; /* With every pack */ |
| } |
| EL3WINDOW(2); |
| for (i = 0; i < 6; i++) |
| iowrite8(dev->dev_addr[i], ioaddr + i); |
| |
| #ifdef __sparc__ |
| if (print_info) |
| printk(", IRQ %s\n", __irq_itoa(dev->irq)); |
| #else |
| if (print_info) |
| printk(", IRQ %d\n", dev->irq); |
| /* Tell them about an invalid IRQ. */ |
| if (dev->irq <= 0 || dev->irq >= NR_IRQS) |
| printk(KERN_WARNING " *** Warning: IRQ %d is unlikely to work! ***\n", |
| dev->irq); |
| #endif |
| |
| EL3WINDOW(4); |
| step = (ioread8(ioaddr + Wn4_NetDiag) & 0x1e) >> 1; |
| if (print_info) { |
| printk(KERN_INFO " product code %02x%02x rev %02x.%d date %02d-" |
| "%02d-%02d\n", eeprom[6]&0xff, eeprom[6]>>8, eeprom[0x14], |
| step, (eeprom[4]>>5) & 15, eeprom[4] & 31, eeprom[4]>>9); |
| } |
| |
| |
| if (pdev && vci->drv_flags & HAS_CB_FNS) { |
| unsigned short n; |
| |
| vp->cb_fn_base = pci_iomap(pdev, 2, 0); |
| if (!vp->cb_fn_base) { |
| retval = -ENOMEM; |
| goto free_ring; |
| } |
| |
| if (print_info) { |
| printk(KERN_INFO "%s: CardBus functions mapped %8.8lx->%p\n", |
| print_name, pci_resource_start(pdev, 2), |
| vp->cb_fn_base); |
| } |
| EL3WINDOW(2); |
| |
| n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010; |
| if (vp->drv_flags & INVERT_LED_PWR) |
| n |= 0x10; |
| if (vp->drv_flags & INVERT_MII_PWR) |
| n |= 0x4000; |
| iowrite16(n, ioaddr + Wn2_ResetOptions); |
| if (vp->drv_flags & WNO_XCVR_PWR) { |
| EL3WINDOW(0); |
| iowrite16(0x0800, ioaddr); |
| } |
| } |
| |
| /* Extract our information from the EEPROM data. */ |
| vp->info1 = eeprom[13]; |
| vp->info2 = eeprom[15]; |
| vp->capabilities = eeprom[16]; |
| |
| if (vp->info1 & 0x8000) { |
| vp->full_duplex = 1; |
| if (print_info) |
| printk(KERN_INFO "Full duplex capable\n"); |
| } |
| |
| { |
| static const char * ram_split[] = {"5:3", "3:1", "1:1", "3:5"}; |
| unsigned int config; |
| EL3WINDOW(3); |
| vp->available_media = ioread16(ioaddr + Wn3_Options); |
| if ((vp->available_media & 0xff) == 0) /* Broken 3c916 */ |
| vp->available_media = 0x40; |
| config = ioread32(ioaddr + Wn3_Config); |
| if (print_info) { |
| printk(KERN_DEBUG " Internal config register is %4.4x, " |
| "transceivers %#x.\n", config, ioread16(ioaddr + Wn3_Options)); |
| printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n", |
| 8 << RAM_SIZE(config), |
| RAM_WIDTH(config) ? "word" : "byte", |
| ram_split[RAM_SPLIT(config)], |
| AUTOSELECT(config) ? "autoselect/" : "", |
| XCVR(config) > XCVR_ExtMII ? "<invalid transceiver>" : |
| media_tbl[XCVR(config)].name); |
| } |
| vp->default_media = XCVR(config); |
| if (vp->default_media == XCVR_NWAY) |
| vp->has_nway = 1; |
| vp->autoselect = AUTOSELECT(config); |
| } |
| |
| if (vp->media_override != 7) { |
| printk(KERN_INFO "%s: Media override to transceiver type %d (%s).\n", |
| print_name, vp->media_override, |
| media_tbl[vp->media_override].name); |
| dev->if_port = vp->media_override; |
| } else |
| dev->if_port = vp->default_media; |
| |
| if ((vp->available_media & 0x40) || (vci->drv_flags & HAS_NWAY) || |
| dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) { |
| int phy, phy_idx = 0; |
| EL3WINDOW(4); |
| mii_preamble_required++; |
| if (vp->drv_flags & EXTRA_PREAMBLE) |
| mii_preamble_required++; |
| mdio_sync(ioaddr, 32); |
| mdio_read(dev, 24, MII_BMSR); |
| for (phy = 0; phy < 32 && phy_idx < 1; phy++) { |
| int mii_status, phyx; |
| |
| /* |
| * For the 3c905CX we look at index 24 first, because it bogusly |
| * reports an external PHY at all indices |
| */ |
| if (phy == 0) |
| phyx = 24; |
| else if (phy <= 24) |
| phyx = phy - 1; |
| else |
| phyx = phy; |
| mii_status = mdio_read(dev, phyx, MII_BMSR); |
| if (mii_status && mii_status != 0xffff) { |
| vp->phys[phy_idx++] = phyx; |
| if (print_info) { |
| printk(KERN_INFO " MII transceiver found at address %d," |
| " status %4x.\n", phyx, mii_status); |
| } |
| if ((mii_status & 0x0040) == 0) |
| mii_preamble_required++; |
| } |
| } |
| mii_preamble_required--; |
| if (phy_idx == 0) { |
| printk(KERN_WARNING" ***WARNING*** No MII transceivers found!\n"); |
| vp->phys[0] = 24; |
| } else { |
| vp->advertising = mdio_read(dev, vp->phys[0], MII_ADVERTISE); |
| if (vp->full_duplex) { |
| /* Only advertise the FD media types. */ |
| vp->advertising &= ~0x02A0; |
| mdio_write(dev, vp->phys[0], 4, vp->advertising); |
| } |
| } |
| vp->mii.phy_id = vp->phys[0]; |
| } |
| |
| if (vp->capabilities & CapBusMaster) { |
| vp->full_bus_master_tx = 1; |
| if (print_info) { |
| printk(KERN_INFO " Enabling bus-master transmits and %s receives.\n", |
| (vp->info2 & 1) ? "early" : "whole-frame" ); |
| } |
| vp->full_bus_master_rx = (vp->info2 & 1) ? 1 : 2; |
| vp->bus_master = 0; /* AKPM: vortex only */ |
| } |
| |
| /* The 3c59x-specific entries in the device structure. */ |
| dev->open = vortex_open; |
| if (vp->full_bus_master_tx) { |
| dev->hard_start_xmit = boomerang_start_xmit; |
| /* Actually, it still should work with iommu. */ |
| dev->features |= NETIF_F_SG; |
| if (card_idx < MAX_UNITS && |
| ((hw_checksums[card_idx] == -1 && (vp->drv_flags & HAS_HWCKSM)) || |
| hw_checksums[card_idx] == 1)) { |
| dev->features |= NETIF_F_IP_CSUM; |
| } |
| } else { |
| dev->hard_start_xmit = vortex_start_xmit; |
| } |
| |
| if (print_info) { |
| printk(KERN_INFO "%s: scatter/gather %sabled. h/w checksums %sabled\n", |
| print_name, |
| (dev->features & NETIF_F_SG) ? "en":"dis", |
| (dev->features & NETIF_F_IP_CSUM) ? "en":"dis"); |
| } |
| |
| dev->stop = vortex_close; |
| dev->get_stats = vortex_get_stats; |
| #ifdef CONFIG_PCI |
| dev->do_ioctl = vortex_ioctl; |
| #endif |
| dev->ethtool_ops = &vortex_ethtool_ops; |
| dev->set_multicast_list = set_rx_mode; |
| dev->tx_timeout = vortex_tx_timeout; |
| dev->watchdog_timeo = (watchdog * HZ) / 1000; |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| dev->poll_controller = poll_vortex; |
| #endif |
| if (pdev) { |
| vp->pm_state_valid = 1; |
| pci_save_state(VORTEX_PCI(vp)); |
| acpi_set_WOL(dev); |
| } |
| retval = register_netdev(dev); |
| if (retval == 0) |
| return 0; |
| |
| free_ring: |
| pci_free_consistent(pdev, |
| sizeof(struct boom_rx_desc) * RX_RING_SIZE |
| + sizeof(struct boom_tx_desc) * TX_RING_SIZE, |
| vp->rx_ring, |
| vp->rx_ring_dma); |
| free_region: |
| if (vp->must_free_region) |
| release_region(dev->base_addr, vci->io_size); |
| free_netdev(dev); |
| printk(KERN_ERR PFX "vortex_probe1 fails. Returns %d\n", retval); |
| out: |
| return retval; |
| } |
| |
| static void |
| issue_and_wait(struct net_device *dev, int cmd) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int i; |
| |
| iowrite16(cmd, ioaddr + EL3_CMD); |
| for (i = 0; i < 2000; i++) { |
| if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) |
| return; |
| } |
| |
| /* OK, that didn't work. Do it the slow way. One second */ |
| for (i = 0; i < 100000; i++) { |
| if (!(ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) { |
| if (vortex_debug > 1) |
| printk(KERN_INFO "%s: command 0x%04x took %d usecs\n", |
| dev->name, cmd, i * 10); |
| return; |
| } |
| udelay(10); |
| } |
| printk(KERN_ERR "%s: command 0x%04x did not complete! Status=0x%x\n", |
| dev->name, cmd, ioread16(ioaddr + EL3_STATUS)); |
| } |
| |
| static void |
| vortex_up(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned int config; |
| int i; |
| |
| if (VORTEX_PCI(vp)) { |
| pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */ |
| if (vp->pm_state_valid) |
| pci_restore_state(VORTEX_PCI(vp)); |
| pci_enable_device(VORTEX_PCI(vp)); |
| } |
| |
| /* Before initializing select the active media port. */ |
| EL3WINDOW(3); |
| config = ioread32(ioaddr + Wn3_Config); |
| |
| if (vp->media_override != 7) { |
| printk(KERN_INFO "%s: Media override to transceiver %d (%s).\n", |
| dev->name, vp->media_override, |
| media_tbl[vp->media_override].name); |
| dev->if_port = vp->media_override; |
| } else if (vp->autoselect) { |
| if (vp->has_nway) { |
| if (vortex_debug > 1) |
| printk(KERN_INFO "%s: using NWAY device table, not %d\n", |
| dev->name, dev->if_port); |
| dev->if_port = XCVR_NWAY; |
| } else { |
| /* Find first available media type, starting with 100baseTx. */ |
| dev->if_port = XCVR_100baseTx; |
| while (! (vp->available_media & media_tbl[dev->if_port].mask)) |
| dev->if_port = media_tbl[dev->if_port].next; |
| if (vortex_debug > 1) |
| printk(KERN_INFO "%s: first available media type: %s\n", |
| dev->name, media_tbl[dev->if_port].name); |
| } |
| } else { |
| dev->if_port = vp->default_media; |
| if (vortex_debug > 1) |
| printk(KERN_INFO "%s: using default media %s\n", |
| dev->name, media_tbl[dev->if_port].name); |
| } |
| |
| init_timer(&vp->timer); |
| vp->timer.expires = RUN_AT(media_tbl[dev->if_port].wait); |
| vp->timer.data = (unsigned long)dev; |
| vp->timer.function = vortex_timer; /* timer handler */ |
| add_timer(&vp->timer); |
| |
| init_timer(&vp->rx_oom_timer); |
| vp->rx_oom_timer.data = (unsigned long)dev; |
| vp->rx_oom_timer.function = rx_oom_timer; |
| |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "%s: Initial media type %s.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| |
| vp->full_duplex = vp->force_fd; |
| config = BFINS(config, dev->if_port, 20, 4); |
| if (vortex_debug > 6) |
| printk(KERN_DEBUG "vortex_up(): writing 0x%x to InternalConfig\n", config); |
| iowrite32(config, ioaddr + Wn3_Config); |
| |
| if (dev->if_port == XCVR_MII || dev->if_port == XCVR_NWAY) { |
| int mii_reg1, mii_reg5; |
| EL3WINDOW(4); |
| /* Read BMSR (reg1) only to clear old status. */ |
| mii_reg1 = mdio_read(dev, vp->phys[0], MII_BMSR); |
| mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA); |
| if (mii_reg5 == 0xffff || mii_reg5 == 0x0000) { |
| netif_carrier_off(dev); /* No MII device or no link partner report */ |
| } else { |
| mii_reg5 &= vp->advertising; |
| if ((mii_reg5 & 0x0100) != 0 /* 100baseTx-FD */ |
| || (mii_reg5 & 0x00C0) == 0x0040) /* 10T-FD, but not 100-HD */ |
| vp->full_duplex = 1; |
| netif_carrier_on(dev); |
| } |
| vp->partner_flow_ctrl = ((mii_reg5 & 0x0400) != 0); |
| if (vortex_debug > 1) |
| printk(KERN_INFO "%s: MII #%d status %4.4x, link partner capability %4.4x," |
| " info1 %04x, setting %s-duplex.\n", |
| dev->name, vp->phys[0], |
| mii_reg1, mii_reg5, |
| vp->info1, ((vp->info1 & 0x8000) || vp->full_duplex) ? "full" : "half"); |
| EL3WINDOW(3); |
| } |
| |
| /* Set the full-duplex bit. */ |
| iowrite16( ((vp->info1 & 0x8000) || vp->full_duplex ? 0x20 : 0) | |
| (vp->large_frames ? 0x40 : 0) | |
| ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0), |
| ioaddr + Wn3_MAC_Ctrl); |
| |
| if (vortex_debug > 1) { |
| printk(KERN_DEBUG "%s: vortex_up() InternalConfig %8.8x.\n", |
| dev->name, config); |
| } |
| |
| issue_and_wait(dev, TxReset); |
| /* |
| * Don't reset the PHY - that upsets autonegotiation during DHCP operations. |
| */ |
| issue_and_wait(dev, RxReset|0x04); |
| |
| iowrite16(SetStatusEnb | 0x00, ioaddr + EL3_CMD); |
| |
| if (vortex_debug > 1) { |
| EL3WINDOW(4); |
| printk(KERN_DEBUG "%s: vortex_up() irq %d media status %4.4x.\n", |
| dev->name, dev->irq, ioread16(ioaddr + Wn4_Media)); |
| } |
| |
| /* Set the station address and mask in window 2 each time opened. */ |
| EL3WINDOW(2); |
| for (i = 0; i < 6; i++) |
| iowrite8(dev->dev_addr[i], ioaddr + i); |
| for (; i < 12; i+=2) |
| iowrite16(0, ioaddr + i); |
| |
| if (vp->cb_fn_base) { |
| unsigned short n = ioread16(ioaddr + Wn2_ResetOptions) & ~0x4010; |
| if (vp->drv_flags & INVERT_LED_PWR) |
| n |= 0x10; |
| if (vp->drv_flags & INVERT_MII_PWR) |
| n |= 0x4000; |
| iowrite16(n, ioaddr + Wn2_ResetOptions); |
| } |
| |
| if (dev->if_port == XCVR_10base2) |
| /* Start the thinnet transceiver. We should really wait 50ms...*/ |
| iowrite16(StartCoax, ioaddr + EL3_CMD); |
| if (dev->if_port != XCVR_NWAY) { |
| EL3WINDOW(4); |
| iowrite16((ioread16(ioaddr + Wn4_Media) & ~(Media_10TP|Media_SQE)) | |
| media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media); |
| } |
| |
| /* Switch to the stats window, and clear all stats by reading. */ |
| iowrite16(StatsDisable, ioaddr + EL3_CMD); |
| EL3WINDOW(6); |
| for (i = 0; i < 10; i++) |
| ioread8(ioaddr + i); |
| ioread16(ioaddr + 10); |
| ioread16(ioaddr + 12); |
| /* New: On the Vortex we must also clear the BadSSD counter. */ |
| EL3WINDOW(4); |
| ioread8(ioaddr + 12); |
| /* ..and on the Boomerang we enable the extra statistics bits. */ |
| iowrite16(0x0040, ioaddr + Wn4_NetDiag); |
| |
| /* Switch to register set 7 for normal use. */ |
| EL3WINDOW(7); |
| |
| if (vp->full_bus_master_rx) { /* Boomerang bus master. */ |
| vp->cur_rx = vp->dirty_rx = 0; |
| /* Initialize the RxEarly register as recommended. */ |
| iowrite16(SetRxThreshold + (1536>>2), ioaddr + EL3_CMD); |
| iowrite32(0x0020, ioaddr + PktStatus); |
| iowrite32(vp->rx_ring_dma, ioaddr + UpListPtr); |
| } |
| if (vp->full_bus_master_tx) { /* Boomerang bus master Tx. */ |
| vp->cur_tx = vp->dirty_tx = 0; |
| if (vp->drv_flags & IS_BOOMERANG) |
| iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); /* Room for a packet. */ |
| /* Clear the Rx, Tx rings. */ |
| for (i = 0; i < RX_RING_SIZE; i++) /* AKPM: this is done in vortex_open, too */ |
| vp->rx_ring[i].status = 0; |
| for (i = 0; i < TX_RING_SIZE; i++) |
| vp->tx_skbuff[i] = NULL; |
| iowrite32(0, ioaddr + DownListPtr); |
| } |
| /* Set receiver mode: presumably accept b-case and phys addr only. */ |
| set_rx_mode(dev); |
| /* enable 802.1q tagged frames */ |
| set_8021q_mode(dev, 1); |
| iowrite16(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */ |
| |
| // issue_and_wait(dev, SetTxStart|0x07ff); |
| iowrite16(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */ |
| iowrite16(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */ |
| /* Allow status bits to be seen. */ |
| vp->status_enable = SetStatusEnb | HostError|IntReq|StatsFull|TxComplete| |
| (vp->full_bus_master_tx ? DownComplete : TxAvailable) | |
| (vp->full_bus_master_rx ? UpComplete : RxComplete) | |
| (vp->bus_master ? DMADone : 0); |
| vp->intr_enable = SetIntrEnb | IntLatch | TxAvailable | |
| (vp->full_bus_master_rx ? 0 : RxComplete) | |
| StatsFull | HostError | TxComplete | IntReq |
| | (vp->bus_master ? DMADone : 0) | UpComplete | DownComplete; |
| iowrite16(vp->status_enable, ioaddr + EL3_CMD); |
| /* Ack all pending events, and set active indicator mask. */ |
| iowrite16(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, |
| ioaddr + EL3_CMD); |
| iowrite16(vp->intr_enable, ioaddr + EL3_CMD); |
| if (vp->cb_fn_base) /* The PCMCIA people are idiots. */ |
| iowrite32(0x8000, vp->cb_fn_base + 4); |
| netif_start_queue (dev); |
| } |
| |
| static int |
| vortex_open(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| int i; |
| int retval; |
| |
| /* Use the now-standard shared IRQ implementation. */ |
| if ((retval = request_irq(dev->irq, vp->full_bus_master_rx ? |
| &boomerang_interrupt : &vortex_interrupt, SA_SHIRQ, dev->name, dev))) { |
| printk(KERN_ERR "%s: Could not reserve IRQ %d\n", dev->name, dev->irq); |
| goto out; |
| } |
| |
| if (vp->full_bus_master_rx) { /* Boomerang bus master. */ |
| if (vortex_debug > 2) |
| printk(KERN_DEBUG "%s: Filling in the Rx ring.\n", dev->name); |
| for (i = 0; i < RX_RING_SIZE; i++) { |
| struct sk_buff *skb; |
| vp->rx_ring[i].next = cpu_to_le32(vp->rx_ring_dma + sizeof(struct boom_rx_desc) * (i+1)); |
| vp->rx_ring[i].status = 0; /* Clear complete bit. */ |
| vp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ | LAST_FRAG); |
| skb = dev_alloc_skb(PKT_BUF_SZ); |
| vp->rx_skbuff[i] = skb; |
| if (skb == NULL) |
| break; /* Bad news! */ |
| skb->dev = dev; /* Mark as being used by this device. */ |
| skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ |
| vp->rx_ring[i].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE)); |
| } |
| if (i != RX_RING_SIZE) { |
| int j; |
| printk(KERN_EMERG "%s: no memory for rx ring\n", dev->name); |
| for (j = 0; j < i; j++) { |
| if (vp->rx_skbuff[j]) { |
| dev_kfree_skb(vp->rx_skbuff[j]); |
| vp->rx_skbuff[j] = NULL; |
| } |
| } |
| retval = -ENOMEM; |
| goto out_free_irq; |
| } |
| /* Wrap the ring. */ |
| vp->rx_ring[i-1].next = cpu_to_le32(vp->rx_ring_dma); |
| } |
| |
| vortex_up(dev); |
| return 0; |
| |
| out_free_irq: |
| free_irq(dev->irq, dev); |
| out: |
| if (vortex_debug > 1) |
| printk(KERN_ERR "%s: vortex_open() fails: returning %d\n", dev->name, retval); |
| return retval; |
| } |
| |
| static void |
| vortex_timer(unsigned long data) |
| { |
| struct net_device *dev = (struct net_device *)data; |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int next_tick = 60*HZ; |
| int ok = 0; |
| int media_status, mii_status, old_window; |
| |
| if (vortex_debug > 2) { |
| printk(KERN_DEBUG "%s: Media selection timer tick happened, %s.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo); |
| } |
| |
| if (vp->medialock) |
| goto leave_media_alone; |
| disable_irq(dev->irq); |
| old_window = ioread16(ioaddr + EL3_CMD) >> 13; |
| EL3WINDOW(4); |
| media_status = ioread16(ioaddr + Wn4_Media); |
| switch (dev->if_port) { |
| case XCVR_10baseT: case XCVR_100baseTx: case XCVR_100baseFx: |
| if (media_status & Media_LnkBeat) { |
| netif_carrier_on(dev); |
| ok = 1; |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "%s: Media %s has link beat, %x.\n", |
| dev->name, media_tbl[dev->if_port].name, media_status); |
| } else { |
| netif_carrier_off(dev); |
| if (vortex_debug > 1) { |
| printk(KERN_DEBUG "%s: Media %s has no link beat, %x.\n", |
| dev->name, media_tbl[dev->if_port].name, media_status); |
| } |
| } |
| break; |
| case XCVR_MII: case XCVR_NWAY: |
| { |
| spin_lock_bh(&vp->lock); |
| mii_status = mdio_read(dev, vp->phys[0], MII_BMSR); |
| if (!(mii_status & BMSR_LSTATUS)) { |
| /* Re-read to get actual link status */ |
| mii_status = mdio_read(dev, vp->phys[0], MII_BMSR); |
| } |
| ok = 1; |
| if (vortex_debug > 2) |
| printk(KERN_DEBUG "%s: MII transceiver has status %4.4x.\n", |
| dev->name, mii_status); |
| if (mii_status & BMSR_LSTATUS) { |
| int mii_reg5 = mdio_read(dev, vp->phys[0], MII_LPA); |
| if (! vp->force_fd && mii_reg5 != 0xffff) { |
| int duplex; |
| |
| mii_reg5 &= vp->advertising; |
| duplex = (mii_reg5&0x0100) || (mii_reg5 & 0x01C0) == 0x0040; |
| if (vp->full_duplex != duplex) { |
| vp->full_duplex = duplex; |
| printk(KERN_INFO "%s: Setting %s-duplex based on MII " |
| "#%d link partner capability of %4.4x.\n", |
| dev->name, vp->full_duplex ? "full" : "half", |
| vp->phys[0], mii_reg5); |
| /* Set the full-duplex bit. */ |
| EL3WINDOW(3); |
| iowrite16( (vp->full_duplex ? 0x20 : 0) | |
| (vp->large_frames ? 0x40 : 0) | |
| ((vp->full_duplex && vp->flow_ctrl && vp->partner_flow_ctrl) ? 0x100 : 0), |
| ioaddr + Wn3_MAC_Ctrl); |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "Setting duplex in Wn3_MAC_Ctrl\n"); |
| /* AKPM: bug: should reset Tx and Rx after setting Duplex. Page 180 */ |
| } |
| } |
| netif_carrier_on(dev); |
| } else { |
| netif_carrier_off(dev); |
| } |
| spin_unlock_bh(&vp->lock); |
| } |
| break; |
| default: /* Other media types handled by Tx timeouts. */ |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "%s: Media %s has no indication, %x.\n", |
| dev->name, media_tbl[dev->if_port].name, media_status); |
| ok = 1; |
| } |
| if ( ! ok) { |
| unsigned int config; |
| |
| do { |
| dev->if_port = media_tbl[dev->if_port].next; |
| } while ( ! (vp->available_media & media_tbl[dev->if_port].mask)); |
| if (dev->if_port == XCVR_Default) { /* Go back to default. */ |
| dev->if_port = vp->default_media; |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "%s: Media selection failing, using default " |
| "%s port.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| } else { |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "%s: Media selection failed, now trying " |
| "%s port.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| next_tick = media_tbl[dev->if_port].wait; |
| } |
| iowrite16((media_status & ~(Media_10TP|Media_SQE)) | |
| media_tbl[dev->if_port].media_bits, ioaddr + Wn4_Media); |
| |
| EL3WINDOW(3); |
| config = ioread32(ioaddr + Wn3_Config); |
| config = BFINS(config, dev->if_port, 20, 4); |
| iowrite32(config, ioaddr + Wn3_Config); |
| |
| iowrite16(dev->if_port == XCVR_10base2 ? StartCoax : StopCoax, |
| ioaddr + EL3_CMD); |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "wrote 0x%08x to Wn3_Config\n", config); |
| /* AKPM: FIXME: Should reset Rx & Tx here. P60 of 3c90xc.pdf */ |
| } |
| EL3WINDOW(old_window); |
| enable_irq(dev->irq); |
| |
| leave_media_alone: |
| if (vortex_debug > 2) |
| printk(KERN_DEBUG "%s: Media selection timer finished, %s.\n", |
| dev->name, media_tbl[dev->if_port].name); |
| |
| mod_timer(&vp->timer, RUN_AT(next_tick)); |
| if (vp->deferred) |
| iowrite16(FakeIntr, ioaddr + EL3_CMD); |
| return; |
| } |
| |
| static void vortex_tx_timeout(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| |
| printk(KERN_ERR "%s: transmit timed out, tx_status %2.2x status %4.4x.\n", |
| dev->name, ioread8(ioaddr + TxStatus), |
| ioread16(ioaddr + EL3_STATUS)); |
| EL3WINDOW(4); |
| printk(KERN_ERR " diagnostics: net %04x media %04x dma %08x fifo %04x\n", |
| ioread16(ioaddr + Wn4_NetDiag), |
| ioread16(ioaddr + Wn4_Media), |
| ioread32(ioaddr + PktStatus), |
| ioread16(ioaddr + Wn4_FIFODiag)); |
| /* Slight code bloat to be user friendly. */ |
| if ((ioread8(ioaddr + TxStatus) & 0x88) == 0x88) |
| printk(KERN_ERR "%s: Transmitter encountered 16 collisions --" |
| " network cable problem?\n", dev->name); |
| if (ioread16(ioaddr + EL3_STATUS) & IntLatch) { |
| printk(KERN_ERR "%s: Interrupt posted but not delivered --" |
| " IRQ blocked by another device?\n", dev->name); |
| /* Bad idea here.. but we might as well handle a few events. */ |
| { |
| /* |
| * Block interrupts because vortex_interrupt does a bare spin_lock() |
| */ |
| unsigned long flags; |
| local_irq_save(flags); |
| if (vp->full_bus_master_tx) |
| boomerang_interrupt(dev->irq, dev, NULL); |
| else |
| vortex_interrupt(dev->irq, dev, NULL); |
| local_irq_restore(flags); |
| } |
| } |
| |
| if (vortex_debug > 0) |
| dump_tx_ring(dev); |
| |
| issue_and_wait(dev, TxReset); |
| |
| vp->stats.tx_errors++; |
| if (vp->full_bus_master_tx) { |
| printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name); |
| if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0) |
| iowrite32(vp->tx_ring_dma + (vp->dirty_tx % TX_RING_SIZE) * sizeof(struct boom_tx_desc), |
| ioaddr + DownListPtr); |
| if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE) |
| netif_wake_queue (dev); |
| if (vp->drv_flags & IS_BOOMERANG) |
| iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); |
| iowrite16(DownUnstall, ioaddr + EL3_CMD); |
| } else { |
| vp->stats.tx_dropped++; |
| netif_wake_queue(dev); |
| } |
| |
| /* Issue Tx Enable */ |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| dev->trans_start = jiffies; |
| |
| /* Switch to register set 7 for normal use. */ |
| EL3WINDOW(7); |
| } |
| |
| /* |
| * Handle uncommon interrupt sources. This is a separate routine to minimize |
| * the cache impact. |
| */ |
| static void |
| vortex_error(struct net_device *dev, int status) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int do_tx_reset = 0, reset_mask = 0; |
| unsigned char tx_status = 0; |
| |
| if (vortex_debug > 2) { |
| printk(KERN_ERR "%s: vortex_error(), status=0x%x\n", dev->name, status); |
| } |
| |
| if (status & TxComplete) { /* Really "TxError" for us. */ |
| tx_status = ioread8(ioaddr + TxStatus); |
| /* Presumably a tx-timeout. We must merely re-enable. */ |
| if (vortex_debug > 2 |
| || (tx_status != 0x88 && vortex_debug > 0)) { |
| printk(KERN_ERR "%s: Transmit error, Tx status register %2.2x.\n", |
| dev->name, tx_status); |
| if (tx_status == 0x82) { |
| printk(KERN_ERR "Probably a duplex mismatch. See " |
| "Documentation/networking/vortex.txt\n"); |
| } |
| dump_tx_ring(dev); |
| } |
| if (tx_status & 0x14) vp->stats.tx_fifo_errors++; |
| if (tx_status & 0x38) vp->stats.tx_aborted_errors++; |
| iowrite8(0, ioaddr + TxStatus); |
| if (tx_status & 0x30) { /* txJabber or txUnderrun */ |
| do_tx_reset = 1; |
| } else if ((tx_status & 0x08) && (vp->drv_flags & MAX_COLLISION_RESET)) { /* maxCollisions */ |
| do_tx_reset = 1; |
| reset_mask = 0x0108; /* Reset interface logic, but not download logic */ |
| } else { /* Merely re-enable the transmitter. */ |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| } |
| } |
| |
| if (status & RxEarly) { /* Rx early is unused. */ |
| vortex_rx(dev); |
| iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD); |
| } |
| if (status & StatsFull) { /* Empty statistics. */ |
| static int DoneDidThat; |
| if (vortex_debug > 4) |
| printk(KERN_DEBUG "%s: Updating stats.\n", dev->name); |
| update_stats(ioaddr, dev); |
| /* HACK: Disable statistics as an interrupt source. */ |
| /* This occurs when we have the wrong media type! */ |
| if (DoneDidThat == 0 && |
| ioread16(ioaddr + EL3_STATUS) & StatsFull) { |
| printk(KERN_WARNING "%s: Updating statistics failed, disabling " |
| "stats as an interrupt source.\n", dev->name); |
| EL3WINDOW(5); |
| iowrite16(SetIntrEnb | (ioread16(ioaddr + 10) & ~StatsFull), ioaddr + EL3_CMD); |
| vp->intr_enable &= ~StatsFull; |
| EL3WINDOW(7); |
| DoneDidThat++; |
| } |
| } |
| if (status & IntReq) { /* Restore all interrupt sources. */ |
| iowrite16(vp->status_enable, ioaddr + EL3_CMD); |
| iowrite16(vp->intr_enable, ioaddr + EL3_CMD); |
| } |
| if (status & HostError) { |
| u16 fifo_diag; |
| EL3WINDOW(4); |
| fifo_diag = ioread16(ioaddr + Wn4_FIFODiag); |
| printk(KERN_ERR "%s: Host error, FIFO diagnostic register %4.4x.\n", |
| dev->name, fifo_diag); |
| /* Adapter failure requires Tx/Rx reset and reinit. */ |
| if (vp->full_bus_master_tx) { |
| int bus_status = ioread32(ioaddr + PktStatus); |
| /* 0x80000000 PCI master abort. */ |
| /* 0x40000000 PCI target abort. */ |
| if (vortex_debug) |
| printk(KERN_ERR "%s: PCI bus error, bus status %8.8x\n", dev->name, bus_status); |
| |
| /* In this case, blow the card away */ |
| /* Must not enter D3 or we can't legally issue the reset! */ |
| vortex_down(dev, 0); |
| issue_and_wait(dev, TotalReset | 0xff); |
| vortex_up(dev); /* AKPM: bug. vortex_up() assumes that the rx ring is full. It may not be. */ |
| } else if (fifo_diag & 0x0400) |
| do_tx_reset = 1; |
| if (fifo_diag & 0x3000) { |
| /* Reset Rx fifo and upload logic */ |
| issue_and_wait(dev, RxReset|0x07); |
| /* Set the Rx filter to the current state. */ |
| set_rx_mode(dev); |
| /* enable 802.1q VLAN tagged frames */ |
| set_8021q_mode(dev, 1); |
| iowrite16(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */ |
| iowrite16(AckIntr | HostError, ioaddr + EL3_CMD); |
| } |
| } |
| |
| if (do_tx_reset) { |
| issue_and_wait(dev, TxReset|reset_mask); |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| if (!vp->full_bus_master_tx) |
| netif_wake_queue(dev); |
| } |
| } |
| |
| static int |
| vortex_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| |
| /* Put out the doubleword header... */ |
| iowrite32(skb->len, ioaddr + TX_FIFO); |
| if (vp->bus_master) { |
| /* Set the bus-master controller to transfer the packet. */ |
| int len = (skb->len + 3) & ~3; |
| iowrite32( vp->tx_skb_dma = pci_map_single(VORTEX_PCI(vp), skb->data, len, PCI_DMA_TODEVICE), |
| ioaddr + Wn7_MasterAddr); |
| iowrite16(len, ioaddr + Wn7_MasterLen); |
| vp->tx_skb = skb; |
| iowrite16(StartDMADown, ioaddr + EL3_CMD); |
| /* netif_wake_queue() will be called at the DMADone interrupt. */ |
| } else { |
| /* ... and the packet rounded to a doubleword. */ |
| iowrite32_rep(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); |
| dev_kfree_skb (skb); |
| if (ioread16(ioaddr + TxFree) > 1536) { |
| netif_start_queue (dev); /* AKPM: redundant? */ |
| } else { |
| /* Interrupt us when the FIFO has room for max-sized packet. */ |
| netif_stop_queue(dev); |
| iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD); |
| } |
| } |
| |
| dev->trans_start = jiffies; |
| |
| /* Clear the Tx status stack. */ |
| { |
| int tx_status; |
| int i = 32; |
| |
| while (--i > 0 && (tx_status = ioread8(ioaddr + TxStatus)) > 0) { |
| if (tx_status & 0x3C) { /* A Tx-disabling error occurred. */ |
| if (vortex_debug > 2) |
| printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n", |
| dev->name, tx_status); |
| if (tx_status & 0x04) vp->stats.tx_fifo_errors++; |
| if (tx_status & 0x38) vp->stats.tx_aborted_errors++; |
| if (tx_status & 0x30) { |
| issue_and_wait(dev, TxReset); |
| } |
| iowrite16(TxEnable, ioaddr + EL3_CMD); |
| } |
| iowrite8(0x00, ioaddr + TxStatus); /* Pop the status stack. */ |
| } |
| } |
| return 0; |
| } |
| |
| static int |
| boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| /* Calculate the next Tx descriptor entry. */ |
| int entry = vp->cur_tx % TX_RING_SIZE; |
| struct boom_tx_desc *prev_entry = &vp->tx_ring[(vp->cur_tx-1) % TX_RING_SIZE]; |
| unsigned long flags; |
| |
| if (vortex_debug > 6) { |
| printk(KERN_DEBUG "boomerang_start_xmit()\n"); |
| printk(KERN_DEBUG "%s: Trying to send a packet, Tx index %d.\n", |
| dev->name, vp->cur_tx); |
| } |
| |
| if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) { |
| if (vortex_debug > 0) |
| printk(KERN_WARNING "%s: BUG! Tx Ring full, refusing to send buffer.\n", |
| dev->name); |
| netif_stop_queue(dev); |
| return 1; |
| } |
| |
| vp->tx_skbuff[entry] = skb; |
| |
| vp->tx_ring[entry].next = 0; |
| #if DO_ZEROCOPY |
| if (skb->ip_summed != CHECKSUM_HW) |
| vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded); |
| else |
| vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded | AddTCPChksum | AddUDPChksum); |
| |
| if (!skb_shinfo(skb)->nr_frags) { |
| vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, |
| skb->len, PCI_DMA_TODEVICE)); |
| vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len | LAST_FRAG); |
| } else { |
| int i; |
| |
| vp->tx_ring[entry].frag[0].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, |
| skb->len-skb->data_len, PCI_DMA_TODEVICE)); |
| vp->tx_ring[entry].frag[0].length = cpu_to_le32(skb->len-skb->data_len); |
| |
| for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; |
| |
| vp->tx_ring[entry].frag[i+1].addr = |
| cpu_to_le32(pci_map_single(VORTEX_PCI(vp), |
| (void*)page_address(frag->page) + frag->page_offset, |
| frag->size, PCI_DMA_TODEVICE)); |
| |
| if (i == skb_shinfo(skb)->nr_frags-1) |
| vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size|LAST_FRAG); |
| else |
| vp->tx_ring[entry].frag[i+1].length = cpu_to_le32(frag->size); |
| } |
| } |
| #else |
| vp->tx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE)); |
| vp->tx_ring[entry].length = cpu_to_le32(skb->len | LAST_FRAG); |
| vp->tx_ring[entry].status = cpu_to_le32(skb->len | TxIntrUploaded); |
| #endif |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| /* Wait for the stall to complete. */ |
| issue_and_wait(dev, DownStall); |
| prev_entry->next = cpu_to_le32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc)); |
| if (ioread32(ioaddr + DownListPtr) == 0) { |
| iowrite32(vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc), ioaddr + DownListPtr); |
| vp->queued_packet++; |
| } |
| |
| vp->cur_tx++; |
| if (vp->cur_tx - vp->dirty_tx > TX_RING_SIZE - 1) { |
| netif_stop_queue (dev); |
| } else { /* Clear previous interrupt enable. */ |
| #if defined(tx_interrupt_mitigation) |
| /* Dubious. If in boomeang_interrupt "faster" cyclone ifdef |
| * were selected, this would corrupt DN_COMPLETE. No? |
| */ |
| prev_entry->status &= cpu_to_le32(~TxIntrUploaded); |
| #endif |
| } |
| iowrite16(DownUnstall, ioaddr + EL3_CMD); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| dev->trans_start = jiffies; |
| return 0; |
| } |
| |
| /* The interrupt handler does all of the Rx thread work and cleans up |
| after the Tx thread. */ |
| |
| /* |
| * This is the ISR for the vortex series chips. |
| * full_bus_master_tx == 0 && full_bus_master_rx == 0 |
| */ |
| |
| static irqreturn_t |
| vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| struct net_device *dev = dev_id; |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr; |
| int status; |
| int work_done = max_interrupt_work; |
| int handled = 0; |
| |
| ioaddr = vp->ioaddr; |
| spin_lock(&vp->lock); |
| |
| status = ioread16(ioaddr + EL3_STATUS); |
| |
| if (vortex_debug > 6) |
| printk("vortex_interrupt(). status=0x%4x\n", status); |
| |
| if ((status & IntLatch) == 0) |
| goto handler_exit; /* No interrupt: shared IRQs cause this */ |
| handled = 1; |
| |
| if (status & IntReq) { |
| status |= vp->deferred; |
| vp->deferred = 0; |
| } |
| |
| if (status == 0xffff) /* h/w no longer present (hotplug)? */ |
| goto handler_exit; |
| |
| if (vortex_debug > 4) |
| printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n", |
| dev->name, status, ioread8(ioaddr + Timer)); |
| |
| do { |
| if (vortex_debug > 5) |
| printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n", |
| dev->name, status); |
| if (status & RxComplete) |
| vortex_rx(dev); |
| |
| if (status & TxAvailable) { |
| if (vortex_debug > 5) |
| printk(KERN_DEBUG " TX room bit was handled.\n"); |
| /* There's room in the FIFO for a full-sized packet. */ |
| iowrite16(AckIntr | TxAvailable, ioaddr + EL3_CMD); |
| netif_wake_queue (dev); |
| } |
| |
| if (status & DMADone) { |
| if (ioread16(ioaddr + Wn7_MasterStatus) & 0x1000) { |
| iowrite16(0x1000, ioaddr + Wn7_MasterStatus); /* Ack the event. */ |
| pci_unmap_single(VORTEX_PCI(vp), vp->tx_skb_dma, (vp->tx_skb->len + 3) & ~3, PCI_DMA_TODEVICE); |
| dev_kfree_skb_irq(vp->tx_skb); /* Release the transferred buffer */ |
| if (ioread16(ioaddr + TxFree) > 1536) { |
| /* |
| * AKPM: FIXME: I don't think we need this. If the queue was stopped due to |
| * insufficient FIFO room, the TxAvailable test will succeed and call |
| * netif_wake_queue() |
| */ |
| netif_wake_queue(dev); |
| } else { /* Interrupt when FIFO has room for max-sized packet. */ |
| iowrite16(SetTxThreshold + (1536>>2), ioaddr + EL3_CMD); |
| netif_stop_queue(dev); |
| } |
| } |
| } |
| /* Check for all uncommon interrupts at once. */ |
| if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) { |
| if (status == 0xffff) |
| break; |
| vortex_error(dev, status); |
| } |
| |
| if (--work_done < 0) { |
| printk(KERN_WARNING "%s: Too much work in interrupt, status " |
| "%4.4x.\n", dev->name, status); |
| /* Disable all pending interrupts. */ |
| do { |
| vp->deferred |= status; |
| iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable), |
| ioaddr + EL3_CMD); |
| iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD); |
| } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch); |
| /* The timer will reenable interrupts. */ |
| mod_timer(&vp->timer, jiffies + 1*HZ); |
| break; |
| } |
| /* Acknowledge the IRQ. */ |
| iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); |
| } while ((status = ioread16(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete)); |
| |
| if (vortex_debug > 4) |
| printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n", |
| dev->name, status); |
| handler_exit: |
| spin_unlock(&vp->lock); |
| return IRQ_RETVAL(handled); |
| } |
| |
| /* |
| * This is the ISR for the boomerang series chips. |
| * full_bus_master_tx == 1 && full_bus_master_rx == 1 |
| */ |
| |
| static irqreturn_t |
| boomerang_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| struct net_device *dev = dev_id; |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr; |
| int status; |
| int work_done = max_interrupt_work; |
| |
| ioaddr = vp->ioaddr; |
| |
| /* |
| * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout |
| * and boomerang_start_xmit |
| */ |
| spin_lock(&vp->lock); |
| |
| status = ioread16(ioaddr + EL3_STATUS); |
| |
| if (vortex_debug > 6) |
| printk(KERN_DEBUG "boomerang_interrupt. status=0x%4x\n", status); |
| |
| if ((status & IntLatch) == 0) |
| goto handler_exit; /* No interrupt: shared IRQs can cause this */ |
| |
| if (status == 0xffff) { /* h/w no longer present (hotplug)? */ |
| if (vortex_debug > 1) |
| printk(KERN_DEBUG "boomerang_interrupt(1): status = 0xffff\n"); |
| goto handler_exit; |
| } |
| |
| if (status & IntReq) { |
| status |= vp->deferred; |
| vp->deferred = 0; |
| } |
| |
| if (vortex_debug > 4) |
| printk(KERN_DEBUG "%s: interrupt, status %4.4x, latency %d ticks.\n", |
| dev->name, status, ioread8(ioaddr + Timer)); |
| do { |
| if (vortex_debug > 5) |
| printk(KERN_DEBUG "%s: In interrupt loop, status %4.4x.\n", |
| dev->name, status); |
| if (status & UpComplete) { |
| iowrite16(AckIntr | UpComplete, ioaddr + EL3_CMD); |
| if (vortex_debug > 5) |
| printk(KERN_DEBUG "boomerang_interrupt->boomerang_rx\n"); |
| boomerang_rx(dev); |
| } |
| |
| if (status & DownComplete) { |
| unsigned int dirty_tx = vp->dirty_tx; |
| |
| iowrite16(AckIntr | DownComplete, ioaddr + EL3_CMD); |
| while (vp->cur_tx - dirty_tx > 0) { |
| int entry = dirty_tx % TX_RING_SIZE; |
| #if 1 /* AKPM: the latter is faster, but cyclone-only */ |
| if (ioread32(ioaddr + DownListPtr) == |
| vp->tx_ring_dma + entry * sizeof(struct boom_tx_desc)) |
| break; /* It still hasn't been processed. */ |
| #else |
| if ((vp->tx_ring[entry].status & DN_COMPLETE) == 0) |
| break; /* It still hasn't been processed. */ |
| #endif |
| |
| if (vp->tx_skbuff[entry]) { |
| struct sk_buff *skb = vp->tx_skbuff[entry]; |
| #if DO_ZEROCOPY |
| int i; |
| for (i=0; i<=skb_shinfo(skb)->nr_frags; i++) |
| pci_unmap_single(VORTEX_PCI(vp), |
| le32_to_cpu(vp->tx_ring[entry].frag[i].addr), |
| le32_to_cpu(vp->tx_ring[entry].frag[i].length)&0xFFF, |
| PCI_DMA_TODEVICE); |
| #else |
| pci_unmap_single(VORTEX_PCI(vp), |
| le32_to_cpu(vp->tx_ring[entry].addr), skb->len, PCI_DMA_TODEVICE); |
| #endif |
| dev_kfree_skb_irq(skb); |
| vp->tx_skbuff[entry] = NULL; |
| } else { |
| printk(KERN_DEBUG "boomerang_interrupt: no skb!\n"); |
| } |
| /* vp->stats.tx_packets++; Counted below. */ |
| dirty_tx++; |
| } |
| vp->dirty_tx = dirty_tx; |
| if (vp->cur_tx - dirty_tx <= TX_RING_SIZE - 1) { |
| if (vortex_debug > 6) |
| printk(KERN_DEBUG "boomerang_interrupt: wake queue\n"); |
| netif_wake_queue (dev); |
| } |
| } |
| |
| /* Check for all uncommon interrupts at once. */ |
| if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) |
| vortex_error(dev, status); |
| |
| if (--work_done < 0) { |
| printk(KERN_WARNING "%s: Too much work in interrupt, status " |
| "%4.4x.\n", dev->name, status); |
| /* Disable all pending interrupts. */ |
| do { |
| vp->deferred |= status; |
| iowrite16(SetStatusEnb | (~vp->deferred & vp->status_enable), |
| ioaddr + EL3_CMD); |
| iowrite16(AckIntr | (vp->deferred & 0x7ff), ioaddr + EL3_CMD); |
| } while ((status = ioread16(ioaddr + EL3_CMD)) & IntLatch); |
| /* The timer will reenable interrupts. */ |
| mod_timer(&vp->timer, jiffies + 1*HZ); |
| break; |
| } |
| /* Acknowledge the IRQ. */ |
| iowrite16(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); |
| if (vp->cb_fn_base) /* The PCMCIA people are idiots. */ |
| iowrite32(0x8000, vp->cb_fn_base + 4); |
| |
| } while ((status = ioread16(ioaddr + EL3_STATUS)) & IntLatch); |
| |
| if (vortex_debug > 4) |
| printk(KERN_DEBUG "%s: exiting interrupt, status %4.4x.\n", |
| dev->name, status); |
| handler_exit: |
| spin_unlock(&vp->lock); |
| return IRQ_HANDLED; |
| } |
| |
| static int vortex_rx(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int i; |
| short rx_status; |
| |
| if (vortex_debug > 5) |
| printk(KERN_DEBUG "vortex_rx(): status %4.4x, rx_status %4.4x.\n", |
| ioread16(ioaddr+EL3_STATUS), ioread16(ioaddr+RxStatus)); |
| while ((rx_status = ioread16(ioaddr + RxStatus)) > 0) { |
| if (rx_status & 0x4000) { /* Error, update stats. */ |
| unsigned char rx_error = ioread8(ioaddr + RxErrors); |
| if (vortex_debug > 2) |
| printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error); |
| vp->stats.rx_errors++; |
| if (rx_error & 0x01) vp->stats.rx_over_errors++; |
| if (rx_error & 0x02) vp->stats.rx_length_errors++; |
| if (rx_error & 0x04) vp->stats.rx_frame_errors++; |
| if (rx_error & 0x08) vp->stats.rx_crc_errors++; |
| if (rx_error & 0x10) vp->stats.rx_length_errors++; |
| } else { |
| /* The packet length: up to 4.5K!. */ |
| int pkt_len = rx_status & 0x1fff; |
| struct sk_buff *skb; |
| |
| skb = dev_alloc_skb(pkt_len + 5); |
| if (vortex_debug > 4) |
| printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n", |
| pkt_len, rx_status); |
| if (skb != NULL) { |
| skb->dev = dev; |
| skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ |
| /* 'skb_put()' points to the start of sk_buff data area. */ |
| if (vp->bus_master && |
| ! (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000)) { |
| dma_addr_t dma = pci_map_single(VORTEX_PCI(vp), skb_put(skb, pkt_len), |
| pkt_len, PCI_DMA_FROMDEVICE); |
| iowrite32(dma, ioaddr + Wn7_MasterAddr); |
| iowrite16((skb->len + 3) & ~3, ioaddr + Wn7_MasterLen); |
| iowrite16(StartDMAUp, ioaddr + EL3_CMD); |
| while (ioread16(ioaddr + Wn7_MasterStatus) & 0x8000) |
| ; |
| pci_unmap_single(VORTEX_PCI(vp), dma, pkt_len, PCI_DMA_FROMDEVICE); |
| } else { |
| ioread32_rep(ioaddr + RX_FIFO, |
| skb_put(skb, pkt_len), |
| (pkt_len + 3) >> 2); |
| } |
| iowrite16(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */ |
| skb->protocol = eth_type_trans(skb, dev); |
| netif_rx(skb); |
| dev->last_rx = jiffies; |
| vp->stats.rx_packets++; |
| /* Wait a limited time to go to next packet. */ |
| for (i = 200; i >= 0; i--) |
| if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) |
| break; |
| continue; |
| } else if (vortex_debug > 0) |
| printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of " |
| "size %d.\n", dev->name, pkt_len); |
| } |
| vp->stats.rx_dropped++; |
| issue_and_wait(dev, RxDiscard); |
| } |
| |
| return 0; |
| } |
| |
| static int |
| boomerang_rx(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| int entry = vp->cur_rx % RX_RING_SIZE; |
| void __iomem *ioaddr = vp->ioaddr; |
| int rx_status; |
| int rx_work_limit = vp->dirty_rx + RX_RING_SIZE - vp->cur_rx; |
| |
| if (vortex_debug > 5) |
| printk(KERN_DEBUG "boomerang_rx(): status %4.4x\n", ioread16(ioaddr+EL3_STATUS)); |
| |
| while ((rx_status = le32_to_cpu(vp->rx_ring[entry].status)) & RxDComplete){ |
| if (--rx_work_limit < 0) |
| break; |
| if (rx_status & RxDError) { /* Error, update stats. */ |
| unsigned char rx_error = rx_status >> 16; |
| if (vortex_debug > 2) |
| printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error); |
| vp->stats.rx_errors++; |
| if (rx_error & 0x01) vp->stats.rx_over_errors++; |
| if (rx_error & 0x02) vp->stats.rx_length_errors++; |
| if (rx_error & 0x04) vp->stats.rx_frame_errors++; |
| if (rx_error & 0x08) vp->stats.rx_crc_errors++; |
| if (rx_error & 0x10) vp->stats.rx_length_errors++; |
| } else { |
| /* The packet length: up to 4.5K!. */ |
| int pkt_len = rx_status & 0x1fff; |
| struct sk_buff *skb; |
| dma_addr_t dma = le32_to_cpu(vp->rx_ring[entry].addr); |
| |
| if (vortex_debug > 4) |
| printk(KERN_DEBUG "Receiving packet size %d status %4.4x.\n", |
| pkt_len, rx_status); |
| |
| /* Check if the packet is long enough to just accept without |
| copying to a properly sized skbuff. */ |
| if (pkt_len < rx_copybreak && (skb = dev_alloc_skb(pkt_len + 2)) != 0) { |
| skb->dev = dev; |
| skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ |
| pci_dma_sync_single_for_cpu(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE); |
| /* 'skb_put()' points to the start of sk_buff data area. */ |
| memcpy(skb_put(skb, pkt_len), |
| vp->rx_skbuff[entry]->data, |
| pkt_len); |
| pci_dma_sync_single_for_device(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE); |
| vp->rx_copy++; |
| } else { |
| /* Pass up the skbuff already on the Rx ring. */ |
| skb = vp->rx_skbuff[entry]; |
| vp->rx_skbuff[entry] = NULL; |
| skb_put(skb, pkt_len); |
| pci_unmap_single(VORTEX_PCI(vp), dma, PKT_BUF_SZ, PCI_DMA_FROMDEVICE); |
| vp->rx_nocopy++; |
| } |
| skb->protocol = eth_type_trans(skb, dev); |
| { /* Use hardware checksum info. */ |
| int csum_bits = rx_status & 0xee000000; |
| if (csum_bits && |
| (csum_bits == (IPChksumValid | TCPChksumValid) || |
| csum_bits == (IPChksumValid | UDPChksumValid))) { |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| vp->rx_csumhits++; |
| } |
| } |
| netif_rx(skb); |
| dev->last_rx = jiffies; |
| vp->stats.rx_packets++; |
| } |
| entry = (++vp->cur_rx) % RX_RING_SIZE; |
| } |
| /* Refill the Rx ring buffers. */ |
| for (; vp->cur_rx - vp->dirty_rx > 0; vp->dirty_rx++) { |
| struct sk_buff *skb; |
| entry = vp->dirty_rx % RX_RING_SIZE; |
| if (vp->rx_skbuff[entry] == NULL) { |
| skb = dev_alloc_skb(PKT_BUF_SZ); |
| if (skb == NULL) { |
| static unsigned long last_jif; |
| if ((jiffies - last_jif) > 10 * HZ) { |
| printk(KERN_WARNING "%s: memory shortage\n", dev->name); |
| last_jif = jiffies; |
| } |
| if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) |
| mod_timer(&vp->rx_oom_timer, RUN_AT(HZ * 1)); |
| break; /* Bad news! */ |
| } |
| skb->dev = dev; /* Mark as being used by this device. */ |
| skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ |
| vp->rx_ring[entry].addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, PKT_BUF_SZ, PCI_DMA_FROMDEVICE)); |
| vp->rx_skbuff[entry] = skb; |
| } |
| vp->rx_ring[entry].status = 0; /* Clear complete bit. */ |
| iowrite16(UpUnstall, ioaddr + EL3_CMD); |
| } |
| return 0; |
| } |
| |
| /* |
| * If we've hit a total OOM refilling the Rx ring we poll once a second |
| * for some memory. Otherwise there is no way to restart the rx process. |
| */ |
| static void |
| rx_oom_timer(unsigned long arg) |
| { |
| struct net_device *dev = (struct net_device *)arg; |
| struct vortex_private *vp = netdev_priv(dev); |
| |
| spin_lock_irq(&vp->lock); |
| if ((vp->cur_rx - vp->dirty_rx) == RX_RING_SIZE) /* This test is redundant, but makes me feel good */ |
| boomerang_rx(dev); |
| if (vortex_debug > 1) { |
| printk(KERN_DEBUG "%s: rx_oom_timer %s\n", dev->name, |
| ((vp->cur_rx - vp->dirty_rx) != RX_RING_SIZE) ? "succeeded" : "retrying"); |
| } |
| spin_unlock_irq(&vp->lock); |
| } |
| |
| static void |
| vortex_down(struct net_device *dev, int final_down) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| |
| netif_stop_queue (dev); |
| |
| del_timer_sync(&vp->rx_oom_timer); |
| del_timer_sync(&vp->timer); |
| |
| /* Turn off statistics ASAP. We update vp->stats below. */ |
| iowrite16(StatsDisable, ioaddr + EL3_CMD); |
| |
| /* Disable the receiver and transmitter. */ |
| iowrite16(RxDisable, ioaddr + EL3_CMD); |
| iowrite16(TxDisable, ioaddr + EL3_CMD); |
| |
| /* Disable receiving 802.1q tagged frames */ |
| set_8021q_mode(dev, 0); |
| |
| if (dev->if_port == XCVR_10base2) |
| /* Turn off thinnet power. Green! */ |
| iowrite16(StopCoax, ioaddr + EL3_CMD); |
| |
| iowrite16(SetIntrEnb | 0x0000, ioaddr + EL3_CMD); |
| |
| update_stats(ioaddr, dev); |
| if (vp->full_bus_master_rx) |
| iowrite32(0, ioaddr + UpListPtr); |
| if (vp->full_bus_master_tx) |
| iowrite32(0, ioaddr + DownListPtr); |
| |
| if (final_down && VORTEX_PCI(vp)) { |
| vp->pm_state_valid = 1; |
| pci_save_state(VORTEX_PCI(vp)); |
| acpi_set_WOL(dev); |
| } |
| } |
| |
| static int |
| vortex_close(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int i; |
| |
| if (netif_device_present(dev)) |
| vortex_down(dev, 1); |
| |
| if (vortex_debug > 1) { |
| printk(KERN_DEBUG"%s: vortex_close() status %4.4x, Tx status %2.2x.\n", |
| dev->name, ioread16(ioaddr + EL3_STATUS), ioread8(ioaddr + TxStatus)); |
| printk(KERN_DEBUG "%s: vortex close stats: rx_nocopy %d rx_copy %d" |
| " tx_queued %d Rx pre-checksummed %d.\n", |
| dev->name, vp->rx_nocopy, vp->rx_copy, vp->queued_packet, vp->rx_csumhits); |
| } |
| |
| #if DO_ZEROCOPY |
| if (vp->rx_csumhits && |
| (vp->drv_flags & HAS_HWCKSM) == 0 && |
| (vp->card_idx >= MAX_UNITS || hw_checksums[vp->card_idx] == -1)) { |
| printk(KERN_WARNING "%s supports hardware checksums, and we're " |
| "not using them!\n", dev->name); |
| } |
| #endif |
| |
| free_irq(dev->irq, dev); |
| |
| if (vp->full_bus_master_rx) { /* Free Boomerang bus master Rx buffers. */ |
| for (i = 0; i < RX_RING_SIZE; i++) |
| if (vp->rx_skbuff[i]) { |
| pci_unmap_single( VORTEX_PCI(vp), le32_to_cpu(vp->rx_ring[i].addr), |
| PKT_BUF_SZ, PCI_DMA_FROMDEVICE); |
| dev_kfree_skb(vp->rx_skbuff[i]); |
| vp->rx_skbuff[i] = NULL; |
| } |
| } |
| if (vp->full_bus_master_tx) { /* Free Boomerang bus master Tx buffers. */ |
| for (i = 0; i < TX_RING_SIZE; i++) { |
| if (vp->tx_skbuff[i]) { |
| struct sk_buff *skb = vp->tx_skbuff[i]; |
| #if DO_ZEROCOPY |
| int k; |
| |
| for (k=0; k<=skb_shinfo(skb)->nr_frags; k++) |
| pci_unmap_single(VORTEX_PCI(vp), |
| le32_to_cpu(vp->tx_ring[i].frag[k].addr), |
| le32_to_cpu(vp->tx_ring[i].frag[k].length)&0xFFF, |
| PCI_DMA_TODEVICE); |
| #else |
| pci_unmap_single(VORTEX_PCI(vp), le32_to_cpu(vp->tx_ring[i].addr), skb->len, PCI_DMA_TODEVICE); |
| #endif |
| dev_kfree_skb(skb); |
| vp->tx_skbuff[i] = NULL; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void |
| dump_tx_ring(struct net_device *dev) |
| { |
| if (vortex_debug > 0) { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| |
| if (vp->full_bus_master_tx) { |
| int i; |
| int stalled = ioread32(ioaddr + PktStatus) & 0x04; /* Possible racy. But it's only debug stuff */ |
| |
| printk(KERN_ERR " Flags; bus-master %d, dirty %d(%d) current %d(%d)\n", |
| vp->full_bus_master_tx, |
| vp->dirty_tx, vp->dirty_tx % TX_RING_SIZE, |
| vp->cur_tx, vp->cur_tx % TX_RING_SIZE); |
| printk(KERN_ERR " Transmit list %8.8x vs. %p.\n", |
| ioread32(ioaddr + DownListPtr), |
| &vp->tx_ring[vp->dirty_tx % TX_RING_SIZE]); |
| issue_and_wait(dev, DownStall); |
| for (i = 0; i < TX_RING_SIZE; i++) { |
| printk(KERN_ERR " %d: @%p length %8.8x status %8.8x\n", i, |
| &vp->tx_ring[i], |
| #if DO_ZEROCOPY |
| le32_to_cpu(vp->tx_ring[i].frag[0].length), |
| #else |
| le32_to_cpu(vp->tx_ring[i].length), |
| #endif |
| le32_to_cpu(vp->tx_ring[i].status)); |
| } |
| if (!stalled) |
| iowrite16(DownUnstall, ioaddr + EL3_CMD); |
| } |
| } |
| } |
| |
| static struct net_device_stats *vortex_get_stats(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned long flags; |
| |
| if (netif_device_present(dev)) { /* AKPM: Used to be netif_running */ |
| spin_lock_irqsave (&vp->lock, flags); |
| update_stats(ioaddr, dev); |
| spin_unlock_irqrestore (&vp->lock, flags); |
| } |
| return &vp->stats; |
| } |
| |
| /* Update statistics. |
| Unlike with the EL3 we need not worry about interrupts changing |
| the window setting from underneath us, but we must still guard |
| against a race condition with a StatsUpdate interrupt updating the |
| table. This is done by checking that the ASM (!) code generated uses |
| atomic updates with '+='. |
| */ |
| static void update_stats(void __iomem *ioaddr, struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| int old_window = ioread16(ioaddr + EL3_CMD); |
| |
| if (old_window == 0xffff) /* Chip suspended or ejected. */ |
| return; |
| /* Unlike the 3c5x9 we need not turn off stats updates while reading. */ |
| /* Switch to the stats window, and read everything. */ |
| EL3WINDOW(6); |
| vp->stats.tx_carrier_errors += ioread8(ioaddr + 0); |
| vp->stats.tx_heartbeat_errors += ioread8(ioaddr + 1); |
| vp->stats.collisions += ioread8(ioaddr + 3); |
| vp->stats.tx_window_errors += ioread8(ioaddr + 4); |
| vp->stats.rx_fifo_errors += ioread8(ioaddr + 5); |
| vp->stats.tx_packets += ioread8(ioaddr + 6); |
| vp->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4; |
| /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */ |
| /* Don't bother with register 9, an extension of registers 6&7. |
| If we do use the 6&7 values the atomic update assumption above |
| is invalid. */ |
| vp->stats.rx_bytes += ioread16(ioaddr + 10); |
| vp->stats.tx_bytes += ioread16(ioaddr + 12); |
| /* Extra stats for get_ethtool_stats() */ |
| vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2); |
| vp->xstats.tx_deferred += ioread8(ioaddr + 8); |
| EL3WINDOW(4); |
| vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12); |
| |
| { |
| u8 up = ioread8(ioaddr + 13); |
| vp->stats.rx_bytes += (up & 0x0f) << 16; |
| vp->stats.tx_bytes += (up & 0xf0) << 12; |
| } |
| |
| EL3WINDOW(old_window >> 13); |
| return; |
| } |
| |
| static int vortex_nway_reset(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned long flags; |
| int rc; |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| EL3WINDOW(4); |
| rc = mii_nway_restart(&vp->mii); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| return rc; |
| } |
| |
| static u32 vortex_get_link(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned long flags; |
| int rc; |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| EL3WINDOW(4); |
| rc = mii_link_ok(&vp->mii); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| return rc; |
| } |
| |
| static int vortex_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned long flags; |
| int rc; |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| EL3WINDOW(4); |
| rc = mii_ethtool_gset(&vp->mii, cmd); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| return rc; |
| } |
| |
| static int vortex_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned long flags; |
| int rc; |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| EL3WINDOW(4); |
| rc = mii_ethtool_sset(&vp->mii, cmd); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| return rc; |
| } |
| |
| static u32 vortex_get_msglevel(struct net_device *dev) |
| { |
| return vortex_debug; |
| } |
| |
| static void vortex_set_msglevel(struct net_device *dev, u32 dbg) |
| { |
| vortex_debug = dbg; |
| } |
| |
| static int vortex_get_stats_count(struct net_device *dev) |
| { |
| return VORTEX_NUM_STATS; |
| } |
| |
| static void vortex_get_ethtool_stats(struct net_device *dev, |
| struct ethtool_stats *stats, u64 *data) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vp->lock, flags); |
| update_stats(ioaddr, dev); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| |
| data[0] = vp->xstats.tx_deferred; |
| data[1] = vp->xstats.tx_multiple_collisions; |
| data[2] = vp->xstats.rx_bad_ssd; |
| } |
| |
| |
| static void vortex_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| { |
| switch (stringset) { |
| case ETH_SS_STATS: |
| memcpy(data, ðtool_stats_keys, sizeof(ethtool_stats_keys)); |
| break; |
| default: |
| WARN_ON(1); |
| break; |
| } |
| } |
| |
| static void vortex_get_drvinfo(struct net_device *dev, |
| struct ethtool_drvinfo *info) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| |
| strcpy(info->driver, DRV_NAME); |
| strcpy(info->version, DRV_VERSION); |
| if (VORTEX_PCI(vp)) { |
| strcpy(info->bus_info, pci_name(VORTEX_PCI(vp))); |
| } else { |
| if (VORTEX_EISA(vp)) |
| sprintf(info->bus_info, vp->gendev->bus_id); |
| else |
| sprintf(info->bus_info, "EISA 0x%lx %d", |
| dev->base_addr, dev->irq); |
| } |
| } |
| |
| static struct ethtool_ops vortex_ethtool_ops = { |
| .get_drvinfo = vortex_get_drvinfo, |
| .get_strings = vortex_get_strings, |
| .get_msglevel = vortex_get_msglevel, |
| .set_msglevel = vortex_set_msglevel, |
| .get_ethtool_stats = vortex_get_ethtool_stats, |
| .get_stats_count = vortex_get_stats_count, |
| .get_settings = vortex_get_settings, |
| .set_settings = vortex_set_settings, |
| .get_link = vortex_get_link, |
| .nway_reset = vortex_nway_reset, |
| .get_perm_addr = ethtool_op_get_perm_addr, |
| }; |
| |
| #ifdef CONFIG_PCI |
| /* |
| * Must power the device up to do MDIO operations |
| */ |
| static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
| { |
| int err; |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| unsigned long flags; |
| int state = 0; |
| |
| if(VORTEX_PCI(vp)) |
| state = VORTEX_PCI(vp)->current_state; |
| |
| /* The kernel core really should have pci_get_power_state() */ |
| |
| if(state != 0) |
| pci_set_power_state(VORTEX_PCI(vp), PCI_D0); |
| spin_lock_irqsave(&vp->lock, flags); |
| EL3WINDOW(4); |
| err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL); |
| spin_unlock_irqrestore(&vp->lock, flags); |
| if(state != 0) |
| pci_set_power_state(VORTEX_PCI(vp), state); |
| |
| return err; |
| } |
| #endif |
| |
| |
| /* Pre-Cyclone chips have no documented multicast filter, so the only |
| multicast setting is to receive all multicast frames. At least |
| the chip has a very clean way to set the mode, unlike many others. */ |
| static void set_rx_mode(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int new_mode; |
| |
| if (dev->flags & IFF_PROMISC) { |
| if (vortex_debug > 0) |
| printk(KERN_NOTICE "%s: Setting promiscuous mode.\n", dev->name); |
| new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast|RxProm; |
| } else if ((dev->mc_list) || (dev->flags & IFF_ALLMULTI)) { |
| new_mode = SetRxFilter|RxStation|RxMulticast|RxBroadcast; |
| } else |
| new_mode = SetRxFilter | RxStation | RxBroadcast; |
| |
| iowrite16(new_mode, ioaddr + EL3_CMD); |
| } |
| |
| #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) |
| /* Setup the card so that it can receive frames with an 802.1q VLAN tag. |
| Note that this must be done after each RxReset due to some backwards |
| compatibility logic in the Cyclone and Tornado ASICs */ |
| |
| /* The Ethernet Type used for 802.1q tagged frames */ |
| #define VLAN_ETHER_TYPE 0x8100 |
| |
| static void set_8021q_mode(struct net_device *dev, int enable) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int old_window = ioread16(ioaddr + EL3_CMD); |
| int mac_ctrl; |
| |
| if ((vp->drv_flags&IS_CYCLONE) || (vp->drv_flags&IS_TORNADO)) { |
| /* cyclone and tornado chipsets can recognize 802.1q |
| * tagged frames and treat them correctly */ |
| |
| int max_pkt_size = dev->mtu+14; /* MTU+Ethernet header */ |
| if (enable) |
| max_pkt_size += 4; /* 802.1Q VLAN tag */ |
| |
| EL3WINDOW(3); |
| iowrite16(max_pkt_size, ioaddr+Wn3_MaxPktSize); |
| |
| /* set VlanEtherType to let the hardware checksumming |
| treat tagged frames correctly */ |
| EL3WINDOW(7); |
| iowrite16(VLAN_ETHER_TYPE, ioaddr+Wn7_VlanEtherType); |
| } else { |
| /* on older cards we have to enable large frames */ |
| |
| vp->large_frames = dev->mtu > 1500 || enable; |
| |
| EL3WINDOW(3); |
| mac_ctrl = ioread16(ioaddr+Wn3_MAC_Ctrl); |
| if (vp->large_frames) |
| mac_ctrl |= 0x40; |
| else |
| mac_ctrl &= ~0x40; |
| iowrite16(mac_ctrl, ioaddr+Wn3_MAC_Ctrl); |
| } |
| |
| EL3WINDOW(old_window); |
| } |
| #else |
| |
| static void set_8021q_mode(struct net_device *dev, int enable) |
| { |
| } |
| |
| |
| #endif |
| |
| /* MII transceiver control section. |
| Read and write the MII registers using software-generated serial |
| MDIO protocol. See the MII specifications or DP83840A data sheet |
| for details. */ |
| |
| /* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually |
| met by back-to-back PCI I/O cycles, but we insert a delay to avoid |
| "overclocking" issues. */ |
| #define mdio_delay() ioread32(mdio_addr) |
| |
| #define MDIO_SHIFT_CLK 0x01 |
| #define MDIO_DIR_WRITE 0x04 |
| #define MDIO_DATA_WRITE0 (0x00 | MDIO_DIR_WRITE) |
| #define MDIO_DATA_WRITE1 (0x02 | MDIO_DIR_WRITE) |
| #define MDIO_DATA_READ 0x02 |
| #define MDIO_ENB_IN 0x00 |
| |
| /* Generate the preamble required for initial synchronization and |
| a few older transceivers. */ |
| static void mdio_sync(void __iomem *ioaddr, int bits) |
| { |
| void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt; |
| |
| /* Establish sync by sending at least 32 logic ones. */ |
| while (-- bits >= 0) { |
| iowrite16(MDIO_DATA_WRITE1, mdio_addr); |
| mdio_delay(); |
| iowrite16(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr); |
| mdio_delay(); |
| } |
| } |
| |
| static int mdio_read(struct net_device *dev, int phy_id, int location) |
| { |
| int i; |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int read_cmd = (0xf6 << 10) | (phy_id << 5) | location; |
| unsigned int retval = 0; |
| void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt; |
| |
| if (mii_preamble_required) |
| mdio_sync(ioaddr, 32); |
| |
| /* Shift the read command bits out. */ |
| for (i = 14; i >= 0; i--) { |
| int dataval = (read_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; |
| iowrite16(dataval, mdio_addr); |
| mdio_delay(); |
| iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr); |
| mdio_delay(); |
| } |
| /* Read the two transition, 16 data, and wire-idle bits. */ |
| for (i = 19; i > 0; i--) { |
| iowrite16(MDIO_ENB_IN, mdio_addr); |
| mdio_delay(); |
| retval = (retval << 1) | ((ioread16(mdio_addr) & MDIO_DATA_READ) ? 1 : 0); |
| iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr); |
| mdio_delay(); |
| } |
| return retval & 0x20000 ? 0xffff : retval>>1 & 0xffff; |
| } |
| |
| static void mdio_write(struct net_device *dev, int phy_id, int location, int value) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| int write_cmd = 0x50020000 | (phy_id << 23) | (location << 18) | value; |
| void __iomem *mdio_addr = ioaddr + Wn4_PhysicalMgmt; |
| int i; |
| |
| if (mii_preamble_required) |
| mdio_sync(ioaddr, 32); |
| |
| /* Shift the command bits out. */ |
| for (i = 31; i >= 0; i--) { |
| int dataval = (write_cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; |
| iowrite16(dataval, mdio_addr); |
| mdio_delay(); |
| iowrite16(dataval | MDIO_SHIFT_CLK, mdio_addr); |
| mdio_delay(); |
| } |
| /* Leave the interface idle. */ |
| for (i = 1; i >= 0; i--) { |
| iowrite16(MDIO_ENB_IN, mdio_addr); |
| mdio_delay(); |
| iowrite16(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr); |
| mdio_delay(); |
| } |
| return; |
| } |
| |
| /* ACPI: Advanced Configuration and Power Interface. */ |
| /* Set Wake-On-LAN mode and put the board into D3 (power-down) state. */ |
| static void acpi_set_WOL(struct net_device *dev) |
| { |
| struct vortex_private *vp = netdev_priv(dev); |
| void __iomem *ioaddr = vp->ioaddr; |
| |
| if (vp->enable_wol) { |
| /* Power up on: 1==Downloaded Filter, 2==Magic Packets, 4==Link Status. */ |
| EL3WINDOW(7); |
| iowrite16(2, ioaddr + 0x0c); |
| /* The RxFilter must accept the WOL frames. */ |
| iowrite16(SetRxFilter|RxStation|RxMulticast|RxBroadcast, ioaddr + EL3_CMD); |
| iowrite16(RxEnable, ioaddr + EL3_CMD); |
| |
| pci_enable_wake(VORTEX_PCI(vp), 0, 1); |
| |
| /* Change the power state to D3; RxEnable doesn't take effect. */ |
| pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot); |
| } |
| } |
| |
| |
| static void __devexit vortex_remove_one (struct pci_dev *pdev) |
| { |
| struct net_device *dev = pci_get_drvdata(pdev); |
| struct vortex_private *vp; |
| |
| if (!dev) { |
| printk("vortex_remove_one called for Compaq device!\n"); |
| BUG(); |
| } |
| |
| vp = netdev_priv(dev); |
| |
| if (vp->cb_fn_base) |
| pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base); |
| |
| unregister_netdev(dev); |
| |
| if (VORTEX_PCI(vp)) { |
| pci_set_power_state(VORTEX_PCI(vp), PCI_D0); /* Go active */ |
| if (vp->pm_state_valid) |
| pci_restore_state(VORTEX_PCI(vp)); |
| pci_disable_device(VORTEX_PCI(vp)); |
| } |
| /* Should really use issue_and_wait() here */ |
| iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14), |
| vp->ioaddr + EL3_CMD); |
| |
| pci_iounmap(VORTEX_PCI(vp), vp->ioaddr); |
| |
| pci_free_consistent(pdev, |
| sizeof(struct boom_rx_desc) * RX_RING_SIZE |
| + sizeof(struct boom_tx_desc) * TX_RING_SIZE, |
| vp->rx_ring, |
| vp->rx_ring_dma); |
| if (vp->must_free_region) |
| release_region(dev->base_addr, vp->io_size); |
| free_netdev(dev); |
| } |
| |
| |
| static struct pci_driver vortex_driver = { |
| .name = "3c59x", |
| .probe = vortex_init_one, |
| .remove = __devexit_p(vortex_remove_one), |
| .id_table = vortex_pci_tbl, |
| #ifdef CONFIG_PM |
| .suspend = vortex_suspend, |
| .resume = vortex_resume, |
| #endif |
| }; |
| |
| |
| static int vortex_have_pci; |
| static int vortex_have_eisa; |
| |
| |
| static int __init vortex_init (void) |
| { |
| int pci_rc, eisa_rc; |
| |
| pci_rc = pci_module_init(&vortex_driver); |
| eisa_rc = vortex_eisa_init(); |
| |
| if (pci_rc == 0) |
| vortex_have_pci = 1; |
| if (eisa_rc > 0) |
| vortex_have_eisa = 1; |
| |
| return (vortex_have_pci + vortex_have_eisa) ? 0 : -ENODEV; |
| } |
| |
| |
| static void __exit vortex_eisa_cleanup (void) |
| { |
| struct vortex_private *vp; |
| void __iomem *ioaddr; |
| |
| #ifdef CONFIG_EISA |
| /* Take care of the EISA devices */ |
| eisa_driver_unregister (&vortex_eisa_driver); |
| #endif |
| |
| if (compaq_net_device) { |
| vp = compaq_net_device->priv; |
| ioaddr = ioport_map(compaq_net_device->base_addr, |
| VORTEX_TOTAL_SIZE); |
| |
| unregister_netdev (compaq_net_device); |
| iowrite16 (TotalReset, ioaddr + EL3_CMD); |
| release_region(compaq_net_device->base_addr, |
| VORTEX_TOTAL_SIZE); |
| |
| free_netdev (compaq_net_device); |
| } |
| } |
| |
| |
| static void __exit vortex_cleanup (void) |
| { |
| if (vortex_have_pci) |
| pci_unregister_driver (&vortex_driver); |
| if (vortex_have_eisa) |
| vortex_eisa_cleanup (); |
| } |
| |
| |
| module_init(vortex_init); |
| module_exit(vortex_cleanup); |
| |
| |
| /* |
| * Local variables: |
| * c-indent-level: 4 |
| * c-basic-offset: 4 |
| * tab-width: 4 |
| * End: |
| */ |