diff options
author | Thomas Schwinge <tschwinge@gnu.org> | 2006-01-22 15:54:41 +0000 |
---|---|---|
committer | Thomas Schwinge <tschwinge@gnu.org> | 2009-06-18 00:26:29 +0200 |
commit | 4ad86505c480b2964548328a959c662e8aef5422 (patch) | |
tree | 9cc9b8f80d561ae7d7451d95a26ff8c252e86504 /linux/src/drivers/net/yellowfin.c | |
parent | 656d6634de02862e837f3a7d80a49e9ca072398d (diff) |
2006-01-22 Thomas Schwinge <tschwinge@gnu.org>
* configure, i386/configure, i386/linux/configure, linux/configure,
i386/linux/device-drivers.h.in: Regenerated.
* linux/src/drivers/net/ne2k-pci.c: Resolve conflicts.
2006-01-22 Guillem Jover <guillem@hadrons.org>
* i386/linux/configure.ac: Renamed winbond-840 driver to winbond_840.
Enable the starfire, intel_gige and natsemi network drivers. Remove
"CONFIG_" from cb_chim, starfire, sundance, winbond840, hamachi,
natsemi, myson803 and ns820 driver declarations. Replace INTER_GIGE
with INTEL_GIGE.
* linux/dev/drivers/net/Space.c: Add conditional probes for natsemi,
ns820, winbond840, hamachi, sundance, starfire, myson803 and intel-gige
drivers.
* linux/src/include/asm-i386/cache.h: New file from linux 2.2.26.
* linux/dev/include/linux/malloc.h: Include <asm/cache.h>.
* linux/src/drivers/net/ns820.c (netsami_drv_id): Renamed to ...
(ns820_drv_id): ... this. Fix all callers.
* linux/src/drivers/net/intel-gige.c
(skel_netdev_probe): Renamed to ...
(igige_probe): ... this.
* linux/dev/drivers/net/eepro100.c: Remove obsoleted file.
* linux/src/drivers/net/eepro100.c (pci_id_tbl): Add PCI ID's from
linux-2.6.14-rc4.
2006-01-22 Alfred M. Szmidt <ams@gnu.org>
* i386/linux/configure.ac: Added `pci-scan.o' to the network driver
class. (ns820, myson803, sundance, winbond-840, hamachi): New drivers.
* i386/linux/Makefile.in (linux-net-files): Added `cb_shim.c',
`hamachi.c', `intel-gige.c', `myson803.c', `natsemi.c', `ns820.c',
`starfire.c', `sundance.c', `winbond-840.c' and `pci-scan.c'.
* linux/dev/include/linux/modversions.h: New file.
* linux/src/drivers/net/cb_shim.c, linux/src/drivers/net/hamachi.c,
linux/src/drivers/net/intel-gige.c, linux/src/drivers/net/myson803.c,
linux/src/drivers/net/natsemi.c, linux/src/drivers/net/ns820.c,
linux/src/drivers/net/starfire.c, linux/src/drivers/net/sundance.c,
linux/src/drivers/net/winbond-840.c,
linux/src/drivers/net/kern_compat.h, linux/src/drivers/net/pci-scan.c,
linux/src/drivers/net/pci-scan.h: New files from netdrivers 3.5 package
(http://www.scyld.com/network).
* linux/src/drivers/net/3c59x.c, linux/src/drivers/net/eepro100.c,
linux/src/drivers/net/epic100.c, linux/src/drivers/net/ne2k-pci.c,
linux/src/drivers/net/rtl8139.c, linux/src/drivers/net/tulip.c,
linux/src/drivers/net/via-rhine.c, linux/src/drivers/net/yellowfin.c:
Updated files from netdrivers 3.5 (http://www.scyld.com/network).
Diffstat (limited to 'linux/src/drivers/net/yellowfin.c')
-rw-r--r-- | linux/src/drivers/net/yellowfin.c | 1564 |
1 files changed, 872 insertions, 692 deletions
diff --git a/linux/src/drivers/net/yellowfin.c b/linux/src/drivers/net/yellowfin.c index 8c2b5df..9d7ace8 100644 --- a/linux/src/drivers/net/yellowfin.c +++ b/linux/src/drivers/net/yellowfin.c @@ -1,28 +1,47 @@ /* yellowfin.c: A Packet Engines G-NIC ethernet driver for linux. */ /* - Written 1997-1998 by Donald Becker. + Written 1997-2003 by Donald Becker. - This software may be used and distributed according to the terms - of the GNU Public License, incorporated herein by reference. + This software may be used and distributed according to the terms of + the GNU General Public License (GPL), incorporated herein by reference. + Drivers based on or derived from this code fall under the GPL and must + retain the authorship, copyright and license notice. This file is not + a complete program and may only be used when the entire operating + system is licensed under the GPL. This driver is for the Packet Engines G-NIC PCI Gigabit Ethernet adapter. It also supports the Symbios Logic version of the same chip core. - The author may be reached as becker@CESDIS.gsfc.nasa.gov, or C/O - Center of Excellence in Space Data and Information Sciences - Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771 + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 914 Bay Ridge Road, Suite 220 + Annapolis MD 21403 - Support and updates available at - http://cesdis.gsfc.nasa.gov/linux/drivers/yellowfin.html + Support information and updates available at + http://www.scyld.com/network/yellowfin.html + The information and support mailing lists are based at + http://www.scyld.com/mailman/listinfo/ */ -static const char *version = "yellowfin.c:v0.99A 4/7/98 becker@cesdis.gsfc.nasa.gov\n"; +/* These identify the driver base version and may not be removed. */ +static const char version1[] = +"yellowfin.c:v1.10 7/22/2003 Written by Donald Becker <becker@scyld.com>\n"; +static const char version2[] = +" http://www.scyld.com/network/yellowfin.html\n"; -/* A few user-configurable values. */ +/* The user-configurable values. + These may be modified when a driver module is loaded.*/ +/* Message enable level: 0..31 = no..all messages. See NETIF_MSG docs. */ +static int debug = 2; + +/* Maximum events (Rx packets, etc.) to handle at each interrupt. */ static int max_interrupt_work = 20; -static int min_pci_latency = 64; -static int mtu = 0; + +/* Maximum number of multicast addresses to filter (vs. rx-all-multicast). + Typical is a 64 element hash table based on the Ethernet CRC. */ +static int multicast_filter_limit = 64; + #ifdef YF_PROTOTYPE /* Support for prototype hardware errata. */ /* System-wide count of bogus-rx frames. */ static int bogus_rx = 0; @@ -38,109 +57,121 @@ static int fifo_cfg = 0x0020; /* Bypass external Tx FIFO. */ /* Set the copy breakpoint for the copy-only-tiny-frames scheme. Setting to > 1518 effectively disables this feature. */ -static const int rx_copybreak = 100; +static int rx_copybreak = 0; + +/* Used to pass the media type, etc. + No media types are currently defined. These options exist only for + compatibility with other drivers. +*/ +#define MAX_UNITS 8 /* More are supported, limit only on options */ +static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; +static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; + +/* Do ugly workaround for GX server chipset errata. */ +static int gx_fix = 0; + +/* Operational parameters that are set at compile time. */ /* Keep the ring sizes a power of two for efficiency. Making the Tx ring too large decreases the effectiveness of channel - bonding and packet priority. - There are no ill effects from too-large receive rings. */ + bonding and packet priority, confuses the system network buffer limits, + and wastes memory. + Too-large receive rings waste memory and confound network buffer limits. +*/ #define TX_RING_SIZE 16 -#define RX_RING_SIZE 32 +#define TX_QUEUE_SIZE 12 /* Must be > 4 && <= TX_RING_SIZE */ +#define RX_RING_SIZE 64 /* Operational parameters that usually are not changed. */ /* Time in jiffies before concluding the transmitter is hung. */ -#define TX_TIMEOUT ((2000*HZ)/1000) +#define TX_TIMEOUT (6*HZ) + +/* Allocation size of Rx buffers with normal sized Ethernet frames. + Do not change this value without good reason. This is not a limit, + but a way to keep a consistent allocation size among drivers. + */ +#define PKT_BUF_SZ 1536 + +#ifndef __KERNEL__ +#define __KERNEL__ +#endif +#if !defined(__OPTIMIZE__) +#warning You must compile this file with the correct options! +#warning See the last lines of the source file. +#error You must compile this driver with "-O". +#endif #include <linux/config.h> -#ifdef MODULE -#ifdef MODVERSIONS -#include <linux/modversions.h> +#if defined(CONFIG_SMP) && ! defined(__SMP__) +#define __SMP__ #endif -#include <linux/module.h> +#if defined(MODULE) && defined(CONFIG_MODVERSIONS) && ! defined(MODVERSIONS) +#define MODVERSIONS +#endif + #include <linux/version.h> -#else -#define MOD_INC_USE_COUNT -#define MOD_DEC_USE_COUNT +#if defined(MODVERSIONS) +#include <linux/modversions.h> #endif +#include <linux/module.h> #include <linux/kernel.h> -#include <linux/sched.h> #include <linux/string.h> #include <linux/timer.h> -#include <linux/ptrace.h> #include <linux/errno.h> #include <linux/ioport.h> +#if LINUX_VERSION_CODE >= 0x20400 +#include <linux/slab.h> +#else #include <linux/malloc.h> +#endif #include <linux/interrupt.h> #include <linux/pci.h> -#include <linux/bios32.h> -#include <asm/processor.h> /* Processor type for cache alignment. */ -#include <asm/bitops.h> -#include <asm/io.h> - #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> +#include <asm/processor.h> /* Processor type for cache alignment. */ +#include <asm/unaligned.h> +#include <asm/bitops.h> +#include <asm/io.h> -/* Kernel compatibility defines, common to David Hind's PCMCIA package. - This is only in the support-all-kernels source code. */ -#include <linux/version.h> /* Evil, but neccessary */ - -#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x10300 -#define RUN_AT(x) (x) /* What to put in timer->expires. */ -#define DEV_ALLOC_SKB(len) alloc_skb(len, GFP_ATOMIC) -#define virt_to_bus(addr) ((unsigned long)addr) -#define bus_to_virt(addr) ((void*)addr) - -#else /* 1.3.0 and later */ -#define RUN_AT(x) (jiffies + (x)) -#define DEV_ALLOC_SKB(len) dev_alloc_skb(len + 2) -#endif - -#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x10338 -#ifdef MODULE -#if !defined(CONFIG_MODVERSIONS) && !defined(__NO_VERSION__) -char kernel_version[] = UTS_RELEASE; -#endif -#else -#undef MOD_INC_USE_COUNT -#define MOD_INC_USE_COUNT -#undef MOD_DEC_USE_COUNT -#define MOD_DEC_USE_COUNT -#endif -#endif /* 1.3.38 */ - -#if (LINUX_VERSION_CODE >= 0x10344) -#define NEW_MULTICAST -#include <linux/delay.h> -#endif -#if (LINUX_VERSION_CODE >= 0x20100) -char kernel_version[] = UTS_RELEASE; -#endif -#ifdef SA_SHIRQ -#define IRQ(irq, dev_id, pt_regs) (irq, dev_id, pt_regs) +#ifdef INLINE_PCISCAN +#include "k_compat.h" #else -#define IRQ(irq, dev_id, pt_regs) (irq, pt_regs) -#endif -#if (LINUX_VERSION_CODE < 0x20123) -#define test_and_set_bit(val, addr) set_bit(val, addr) +#include "pci-scan.h" +#include "kern_compat.h" #endif -static const char *card_name = "Yellowfin G-NIC Gbit Ethernet"; - -/* The PCI I/O space extent. */ -#define YELLOWFIN_TOTAL_SIZE 0x100 +/* Condensed operations for readability. */ +#define virt_to_le32desc(addr) cpu_to_le32(virt_to_bus(addr)) +#define le32desc_to_virt(addr) bus_to_virt(le32_to_cpu(addr)) -#ifdef HAVE_DEVLIST -struct netdev_entry yellowfin_drv = -{card_name, yellowfin_pci_probe, YELLOWFIN_TOTAL_SIZE, NULL}; +#if (LINUX_VERSION_CODE >= 0x20100) && defined(MODULE) +char kernel_version[] = UTS_RELEASE; #endif -#ifdef YELLOWFIN_DEBUG -int yellowfin_debug = YELLOWFIN_DEBUG; -#else -int yellowfin_debug = 1; -#endif +MODULE_AUTHOR("Donald Becker <becker@scyld.com>"); +MODULE_DESCRIPTION("Packet Engines Yellowfin G-NIC Gigabit Ethernet driver"); +MODULE_LICENSE("GPL"); +MODULE_PARM(debug, "i"); +MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i"); +MODULE_PARM(rx_copybreak, "i"); +MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i"); +MODULE_PARM(multicast_filter_limit, "i"); +MODULE_PARM(max_interrupt_work, "i"); +MODULE_PARM(gx_fix, "i"); +MODULE_PARM_DESC(debug, "Driver message level enable (0-31)"); +MODULE_PARM_DESC(options, "Force transceiver type or fixed speed+duplex"); +MODULE_PARM_DESC(rx_copybreak, + "Breakpoint in bytes for copy-only-tiny-frames"); +MODULE_PARM_DESC(full_duplex, + "Non-zero to force full duplex, non-negotiated link " + "(deprecated)."); +MODULE_PARM_DESC(max_interrupt_work, + "Driver maximum events handled per interrupt"); +MODULE_PARM_DESC(multicast_filter_limit, + "Multicast addresses before switching to Rx-all-multicast"); +MODULE_PARM_DESC(gx_fix, "Set to work around old GX chipset errata"); /* Theory of Operation @@ -203,29 +234,50 @@ clears both the tx_full and tbusy flags. IV. Notes Thanks to Kim Stearns of Packet Engines for providing a pair of G-NIC boards. +Thanks to Bruce Faust of Digitalscape for providing both their SYM53C885 board +and an AlphaStation to verifty the Alpha port! IVb. References Yellowfin Engineering Design Specification, 4/23/97 Preliminary/Confidential +Symbios SYM53C885 PCI-SCSI/Fast Ethernet Multifunction Controller Preliminary + Data Manual v3.0 +http://cesdis.gsfc.nasa.gov/linux/misc/NWay.html http://cesdis.gsfc.nasa.gov/linux/misc/100mbps.html IVc. Errata -See Packet Engines confidential appendix. - +See Packet Engines confidential appendix (prototype chips only). */ + -/* A few values that may be tweaked. */ -#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ -#ifndef PCI_VENDOR_ID_PKT_ENG /* To be defined in linux/pci.h */ -#define PCI_VENDOR_ID_PKT_ENG 0x1000 /* Hmm, likely number.. */ -#define PCI_DEVICE_ID_YELLOWFIN 0x0702 +static void *yellowfin_probe1(struct pci_dev *pdev, void *init_dev, + long ioaddr, int irq, int chip_idx, int fnd_cnt); +enum capability_flags { + HasMII=1, FullTxStatus=2, IsGigabit=4, HasMulticastBug=8, FullRxStatus=16, + HasMACAddrBug=32, /* Only on early revs. */ +}; +/* The PCI I/O space extent. */ +#define YELLOWFIN_SIZE 0x100 +#ifdef USE_IO_OPS +#define PCI_IOTYPE (PCI_USES_MASTER | PCI_USES_IO | PCI_ADDR0) +#else +#define PCI_IOTYPE (PCI_USES_MASTER | PCI_USES_MEM | PCI_ADDR1) #endif -/* The rest of these values should never change. */ +static struct pci_id_info pci_id_tbl[] = { + {"Yellowfin G-NIC Gigabit Ethernet", { 0x07021000, 0xffffffff}, + PCI_IOTYPE, YELLOWFIN_SIZE, + FullTxStatus | IsGigabit | HasMulticastBug | HasMACAddrBug}, + {"Symbios SYM83C885", { 0x07011000, 0xffffffff}, + PCI_IOTYPE, YELLOWFIN_SIZE, HasMII }, + {0,}, +}; -static void yellowfin_timer(unsigned long data); +struct drv_id_info yellowfin_drv_id = { + "yellowfin", PCI_HOTSWAP, PCI_CLASS_NETWORK_ETHERNET<<8, pci_id_tbl, + yellowfin_probe1, }; /* Offsets to the Yellowfin registers. Various sizes and alignments. */ enum yellowfin_offsets { @@ -234,33 +286,45 @@ enum yellowfin_offsets { RxCtrl=0x40, RxStatus=0x44, RxPtr=0x4C, RxIntrSel=0x50, RxBranchSel=0x54, RxWaitSel=0x58, EventStatus=0x80, IntrEnb=0x82, IntrClear=0x84, IntrStatus=0x86, - ChipRev=0x8C, DMACtrl=0x90, Cnfg=0xA0, RxDepth=0xB8, FlowCtrl=0xBC, + ChipRev=0x8C, DMACtrl=0x90, TxThreshold=0x94, + Cnfg=0xA0, FrameGap0=0xA2, FrameGap1=0xA4, + MII_Cmd=0xA6, MII_Addr=0xA8, MII_Wr_Data=0xAA, MII_Rd_Data=0xAC, + MII_Status=0xAE, + RxDepth=0xB8, FlowCtrl=0xBC, AddrMode=0xD0, StnAddr=0xD2, HashTbl=0xD8, FIFOcfg=0xF8, + EEStatus=0xF0, EECtrl=0xF1, EEAddr=0xF2, EERead=0xF3, EEWrite=0xF4, + EEFeature=0xF5, }; -/* The Yellowfin Rx and Tx buffer descriptors. */ +/* The Yellowfin Rx and Tx buffer descriptors. + Elements are written as 32 bit for endian portability. */ struct yellowfin_desc { - u16 request_cnt; - u16 cmd; + u32 dbdma_cmd; u32 addr; u32 branch_addr; - u16 result_cnt; - u16 status; + u32 result_status; }; struct tx_status_words { +#if defined(__powerpc__) + u16 tx_errs; + u16 tx_cnt; + u16 paused; + u16 total_tx_cnt; +#else /* Little endian chips. */ u16 tx_cnt; u16 tx_errs; u16 total_tx_cnt; u16 paused; +#endif }; /* Bits in yellowfin_desc.cmd */ enum desc_cmd_bits { - CMD_TX_PKT=0x1000, CMD_RX_BUF=0x2000, CMD_TXSTATUS=0x3000, - CMD_NOP=0x6000, CMD_STOP=0x7000, - BRANCH_ALWAYS=0x0C, INTR_ALWAYS=0x30, WAIT_ALWAYS=0x03, - BRANCH_IFTRUE=0x04, + CMD_TX_PKT=0x10000000, CMD_RX_BUF=0x20000000, CMD_TXSTATUS=0x30000000, + CMD_NOP=0x60000000, CMD_STOP=0x70000000, + BRANCH_ALWAYS=0x0C0000, INTR_ALWAYS=0x300000, WAIT_ALWAYS=0x030000, + BRANCH_IFTRUE=0x040000, }; /* Bits in yellowfin_desc.status */ @@ -272,227 +336,159 @@ enum intr_status_bits { IntrTxDone=0x10, IntrTxInvalid=0x20, IntrTxPCIFault=0x40,IntrTxPCIErr=0x80, IntrEarlyRx=0x100, IntrWakeup=0x200, }; +#define PRIV_ALIGN 31 /* Required alignment mask */ struct yellowfin_private { - /* Descriptor rings first for alignment. Tx requires a second descriptor - for status. */ + /* Descriptor rings first for alignment. + Tx requires a second descriptor for status. */ struct yellowfin_desc rx_ring[RX_RING_SIZE]; struct yellowfin_desc tx_ring[TX_RING_SIZE*2]; - const char *product_name; - struct device *next_module; - /* The saved address of a sent-in-place packet/buffer, for skfree(). */ - struct sk_buff* tx_skbuff[TX_RING_SIZE]; - struct tx_status_words tx_status[TX_RING_SIZE]; + struct net_device *next_module; + void *priv_addr; /* Unaligned address for kfree */ /* The addresses of receive-in-place skbuffs. */ struct sk_buff* rx_skbuff[RX_RING_SIZE]; - int chip_id; - struct enet_statistics stats; + /* The saved address of a sent-in-place packet/buffer, for later free(). */ + struct sk_buff* tx_skbuff[TX_RING_SIZE]; + struct tx_status_words tx_status[TX_RING_SIZE]; struct timer_list timer; /* Media selection timer. */ - int in_interrupt; - 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; + /* Frequently used and paired value: keep adjacent for cache effect. */ + int msg_level; + int chip_id, drv_flags; + struct pci_dev *pci_dev; + long in_interrupt; + int max_interrupt_work; + + struct yellowfin_desc *rx_head_desc; + unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */ + unsigned int rx_buf_sz; /* Based on MTU+slack. */ + int rx_copybreak; + + struct tx_status_words *tx_tail_desc; + unsigned int cur_tx, dirty_tx; + int tx_threshold; unsigned int tx_full:1; /* The Tx queue is full. */ unsigned int full_duplex:1; /* Full-duplex operation requested. */ + unsigned int duplex_lock:1; unsigned int medialock:1; /* Do not sense media. */ - unsigned int default_port:4; /* Last dev->if_port value. */ - u32 pad[4]; /* Used for 32-byte alignment */ + unsigned int default_port; /* Last dev->if_port value. */ + /* MII transceiver section. */ + int mii_cnt; /* MII device addresses. */ + u16 advertising; /* NWay media advertisement */ + unsigned char phys[2]; /* MII device addresses. */ + /* Rx multicast filter. */ + u16 mc_filter[4]; + int rx_mode; + int multicast_filter_limit; }; -#ifdef MODULE -/* Used to pass the media type, etc. */ -#define MAX_UNITS 8 /* More are supported, limit only on options */ -static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1}; - -#if LINUX_VERSION_CODE > 0x20115 -MODULE_AUTHOR("Donald Becker <becker@cesdis.gsfc.nasa.gov>"); -MODULE_DESCRIPTION("Packet Engines Yellowfin G-NIC Gigabit Ethernet driver"); -MODULE_PARM(max_interrupt_work, "i"); -MODULE_PARM(min_pci_latency, "i"); -MODULE_PARM(mtu, "i"); -MODULE_PARM(debug, "i"); -MODULE_PARM(rx_copybreak, "i"); -MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i"); -#endif - +static int read_eeprom(long ioaddr, int location); +static int mdio_read(long ioaddr, int phy_id, int location); +static void mdio_write(long ioaddr, int phy_id, int location, int value); +#ifdef HAVE_PRIVATE_IOCTL +static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); #endif - -static struct device *yellowfin_probe1(struct device *dev, int ioaddr, int irq, - int chip_id, int options); -static int yellowfin_open(struct device *dev); +static int yellowfin_open(struct net_device *dev); static void yellowfin_timer(unsigned long data); -static void yellowfin_tx_timeout(struct device *dev); -static void yellowfin_init_ring(struct device *dev); -static int yellowfin_start_xmit(struct sk_buff *skb, struct device *dev); -static int yellowfin_rx(struct device *dev); -static void yellowfin_interrupt IRQ(int irq, void *dev_instance, struct pt_regs *regs); -static int yellowfin_close(struct device *dev); -static struct enet_statistics *yellowfin_get_stats(struct device *dev); -#ifdef NEW_MULTICAST -static void set_rx_mode(struct device *dev); -#else -static void set_rx_mode(struct device *dev, int num_addrs, void *addrs); -#endif +static void yellowfin_tx_timeout(struct net_device *dev); +static void yellowfin_init_ring(struct net_device *dev); +static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev); +static void yellowfin_interrupt(int irq, void *dev_instance, struct pt_regs *regs); +static int yellowfin_rx(struct net_device *dev); +static void yellowfin_error(struct net_device *dev, int intr_status); +static int yellowfin_close(struct net_device *dev); +static struct net_device_stats *yellowfin_get_stats(struct net_device *dev); +static void set_rx_mode(struct net_device *dev); -#ifdef MODULE -/* A list of all installed Yellowfin devices, for removing the driver module. */ -static struct device *root_yellowfin_dev = NULL; -#endif +/* A list of installed Yellowfin devices, for removing the driver module. */ +static struct net_device *root_yellowfin_dev = NULL; -int yellowfin_probe(struct device *dev) +#ifndef MODULE +int yellowfin_probe(struct net_device *dev) { - int cards_found = 0; - static int pci_index = 0; /* Static, for multiple probe calls. */ - - /* Ideally we would detect all network cards in slot order. That would - be best done a central PCI probe dispatch, which wouldn't work - well with the current structure. So instead we detect just the - Yellowfin cards in slot order. */ - - if (pcibios_present()) { - unsigned char pci_bus, pci_device_fn; - - for (;pci_index < 0xff; pci_index++) { - u8 pci_irq_line, pci_latency; - u16 pci_command, vendor, device; - u32 pci_ioaddr, chip_idx = 0; - -#ifdef REVERSE_PROBE_ORDER - if (pcibios_find_class (PCI_CLASS_NETWORK_ETHERNET << 8, - 0xfe - pci_index, - &pci_bus, &pci_device_fn) - != PCIBIOS_SUCCESSFUL) - continue; -#else - if (pcibios_find_class (PCI_CLASS_NETWORK_ETHERNET << 8, - pci_index, - &pci_bus, &pci_device_fn) - != PCIBIOS_SUCCESSFUL) - break; -#endif - pcibios_read_config_word(pci_bus, pci_device_fn, - PCI_VENDOR_ID, &vendor); - pcibios_read_config_word(pci_bus, pci_device_fn, - PCI_DEVICE_ID, &device); - pcibios_read_config_byte(pci_bus, pci_device_fn, - PCI_INTERRUPT_LINE, &pci_irq_line); - pcibios_read_config_dword(pci_bus, pci_device_fn, - PCI_BASE_ADDRESS_0, &pci_ioaddr); - /* Remove I/O space marker in bit 0. */ - pci_ioaddr &= ~3; - - if (vendor != PCI_VENDOR_ID_PKT_ENG) - continue; - - if (device != PCI_DEVICE_ID_YELLOWFIN) - continue; - - if (yellowfin_debug > 2) - printk("Found Packet Engines Yellowfin G-NIC at I/O %#x, IRQ %d.\n", - pci_ioaddr, pci_irq_line); - - if (check_region(pci_ioaddr, YELLOWFIN_TOTAL_SIZE)) - continue; - -#ifdef MODULE - dev = yellowfin_probe1(dev, pci_ioaddr, pci_irq_line, chip_idx, - cards_found < MAX_UNITS ? options[cards_found] : 0); -#else - dev = yellowfin_probe1(dev, pci_ioaddr, pci_irq_line, chip_idx, - dev ? dev->mem_start : 0); -#endif - - if (dev) { - /* Get and check the bus-master and latency values. */ - pcibios_read_config_word(pci_bus, pci_device_fn, - PCI_COMMAND, &pci_command); - if ( ! (pci_command & PCI_COMMAND_MASTER)) { - printk(" PCI Master Bit has not been set! Setting...\n"); - pci_command |= PCI_COMMAND_MASTER; - pcibios_write_config_word(pci_bus, pci_device_fn, - PCI_COMMAND, pci_command); - } - pcibios_read_config_byte(pci_bus, pci_device_fn, - PCI_LATENCY_TIMER, &pci_latency); - if (pci_latency < min_pci_latency) { - printk(" PCI latency timer (CFLT) is unreasonably low at %d." - " Setting to %d clocks.\n", - pci_latency, min_pci_latency); - pcibios_write_config_byte(pci_bus, pci_device_fn, - PCI_LATENCY_TIMER, min_pci_latency); - } else if (yellowfin_debug > 1) - printk(" PCI latency timer (CFLT) is %#x.\n", pci_latency); - dev = 0; - cards_found++; - } - } - } - -#if defined (MODULE) - return cards_found; -#else - return cards_found ? 0 : -ENODEV; -#endif + if (pci_drv_register(&yellowfin_drv_id, dev) < 0) + return -ENODEV; + printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2); + return 0; } +#endif -static struct device *yellowfin_probe1(struct device *dev, int ioaddr, int irq, - int chip_id, int options) +static void *yellowfin_probe1(struct pci_dev *pdev, void *init_dev, + long ioaddr, int irq, int chip_idx, int find_cnt) { - static int did_version = 0; /* Already printed version info. */ - struct yellowfin_private *yp; - int i; - - if (yellowfin_debug > 0 && did_version++ == 0) - printk(version); - - dev = init_etherdev(dev, sizeof(struct yellowfin_private)); - - printk("%s: P-E Yellowfin type %8x at %#3x, ", - dev->name, inl(ioaddr + ChipRev), ioaddr); - + struct net_device *dev; + struct yellowfin_private *np; + void *priv_mem; + int i, option = find_cnt < MAX_UNITS ? options[find_cnt] : 0; + int drv_flags = pci_id_tbl[chip_idx].drv_flags; + + dev = init_etherdev(init_dev, 0); + if (!dev) + return NULL; + + printk(KERN_INFO "%s: %s type %8x at 0x%lx, ", + dev->name, pci_id_tbl[chip_idx].name, (int)inl(ioaddr + ChipRev), + ioaddr); + + if (drv_flags & IsGigabit) + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb(ioaddr + StnAddr + i); + else { + int ee_offset = (read_eeprom(ioaddr, 6) == 0xff ? 0x100 : 0); + for (i = 0; i < 6; i++) + dev->dev_addr[i] = read_eeprom(ioaddr, ee_offset + i); + } for (i = 0; i < 5; i++) - printk("%2.2x:", inb(ioaddr + StnAddr + i)); - printk("%2.2x, IRQ %d.\n", inb(ioaddr + StnAddr + i), irq); - for (i = 0; i < 6; i++) - dev->dev_addr[i] = inb(ioaddr + StnAddr + i); + printk("%2.2x:", dev->dev_addr[i]); + printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], irq); /* Reset the chip. */ outl(0x80000000, ioaddr + DMACtrl); + /* Make certain elements e.g. descriptor lists are aligned. */ + priv_mem = kmalloc(sizeof(*np) + PRIV_ALIGN, GFP_KERNEL); + /* Check for the very unlikely case of no memory. */ + if (priv_mem == NULL) + return NULL; /* We do a request_region() only to register /proc/ioports info. */ - request_region(ioaddr, YELLOWFIN_TOTAL_SIZE, card_name); + request_region(ioaddr, pci_id_tbl[chip_idx].io_size, dev->name); dev->base_addr = ioaddr; dev->irq = irq; - /* Make certain the descriptor lists are aligned. */ - yp = (void *)(((long)kmalloc(sizeof(*yp), GFP_KERNEL) + 31) & ~31); - memset(yp, 0, sizeof(*yp)); - dev->priv = yp; + dev->priv = np = (void *)(((long)priv_mem + PRIV_ALIGN) & ~PRIV_ALIGN); + memset(np, 0, sizeof(*np)); + np->priv_addr = priv_mem; -#ifdef MODULE - yp->next_module = root_yellowfin_dev; + np->next_module = root_yellowfin_dev; root_yellowfin_dev = dev; -#endif - yp->chip_id = chip_id; + np->pci_dev = pdev; + np->chip_id = chip_idx; + np->drv_flags = drv_flags; + np->msg_level = (1 << debug) - 1; + np->rx_copybreak = rx_copybreak; + np->max_interrupt_work = max_interrupt_work; + np->multicast_filter_limit = multicast_filter_limit; - yp->full_duplex = 1; -#ifdef YELLOWFIN_DEFAULT_MEDIA - yp->default_port = YELLOWFIN_DEFAULT_MEDIA; -#endif -#ifdef YELLOWFIN_NO_MEDIA_SWITCH - yp->medialock = 1; -#endif + if (dev->mem_start) + option = dev->mem_start; /* The lower four bits are the media type. */ - if (options > 0) { - yp->full_duplex = (options & 16) ? 1 : 0; - yp->default_port = options & 15; - if (yp->default_port) - yp->medialock = 1; + if (option > 0) { + if (option & 0x220) + np->full_duplex = 1; + np->default_port = option & 15; + if (np->default_port) + np->medialock = 1; } + if (find_cnt < MAX_UNITS && full_duplex[find_cnt] > 0) + np->full_duplex = 1; + + if (np->full_duplex) + np->duplex_lock = 1; /* The Yellowfin-specific entries in the device structure. */ dev->open = &yellowfin_open; @@ -500,48 +496,97 @@ static struct device *yellowfin_probe1(struct device *dev, int ioaddr, int irq, dev->stop = &yellowfin_close; dev->get_stats = &yellowfin_get_stats; dev->set_multicast_list = &set_rx_mode; - if (mtu) - dev->mtu = mtu; - - /* todo: Reset the xcvr interface and turn on heartbeat. */ + dev->do_ioctl = &mii_ioctl; + + if (np->drv_flags & HasMII) { + int phy, phy_idx = 0; + for (phy = 0; phy < 32 && phy_idx < 4; phy++) { + int mii_status = mdio_read(ioaddr, phy, 1); + if (mii_status != 0xffff && mii_status != 0x0000) { + np->phys[phy_idx++] = phy; + np->advertising = mdio_read(ioaddr, phy, 4); + printk(KERN_INFO "%s: MII PHY found at address %d, status " + "0x%4.4x advertising %4.4x.\n", + dev->name, phy, mii_status, np->advertising); + } + } + np->mii_cnt = phy_idx; + } return dev; } +static int read_eeprom(long ioaddr, int location) +{ + int bogus_cnt = 10000; /* Typical 33Mhz: 1050 ticks */ + + outb(location, ioaddr + EEAddr); + outb(0x30 | ((location >> 8) & 7), ioaddr + EECtrl); + while ((inb(ioaddr + EEStatus) & 0x80) && --bogus_cnt > 0) + ; + return inb(ioaddr + EERead); +} + +/* MII Managemen Data I/O accesses. + These routines assume the MDIO controller is idle, and do not exit until + the command is finished. */ + +static int mdio_read(long ioaddr, int phy_id, int location) +{ + int i; + + outw((phy_id<<8) + location, ioaddr + MII_Addr); + outw(1, ioaddr + MII_Cmd); + for (i = 10000; i >= 0; i--) + if ((inw(ioaddr + MII_Status) & 1) == 0) + break; + return inw(ioaddr + MII_Rd_Data); +} + +static void mdio_write(long ioaddr, int phy_id, int location, int value) +{ + int i; + + outw((phy_id<<8) + location, ioaddr + MII_Addr); + outw(value, ioaddr + MII_Wr_Data); + + /* Wait for the command to finish. */ + for (i = 10000; i >= 0; i--) + if ((inw(ioaddr + MII_Status) & 1) == 0) + break; + return; +} + -static int -yellowfin_open(struct device *dev) +static int yellowfin_open(struct net_device *dev) { struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; - int ioaddr = dev->base_addr; + long ioaddr = dev->base_addr; + int i; /* Reset the chip. */ outl(0x80000000, ioaddr + DMACtrl); -#ifdef SA_SHIRQ - if (request_irq(dev->irq, &yellowfin_interrupt, SA_SHIRQ, - card_name, dev)) { - return -EAGAIN; - } -#else - if (irq2dev_map[dev->irq] != NULL - || (irq2dev_map[dev->irq] = dev) == NULL - || dev->irq == 0 - || request_irq(dev->irq, &yellowfin_interrupt, 0, card_name)) { + MOD_INC_USE_COUNT; + + if (request_irq(dev->irq, &yellowfin_interrupt, SA_SHIRQ, dev->name, + dev)) { + MOD_DEC_USE_COUNT; return -EAGAIN; } -#endif - if (yellowfin_debug > 1) - printk("%s: yellowfin_open() irq %d.\n", dev->name, dev->irq); - - MOD_INC_USE_COUNT; + if (yp->msg_level & NETIF_MSG_IFUP) + printk(KERN_DEBUG "%s: yellowfin_open() irq %d.\n", + dev->name, dev->irq); yellowfin_init_ring(dev); outl(virt_to_bus(yp->rx_ring), ioaddr + RxPtr); outl(virt_to_bus(yp->tx_ring), ioaddr + TxPtr); + for (i = 0; i < 6; i++) + outb(dev->dev_addr[i], ioaddr + StnAddr + i); + /* Set up various condition 'select' registers. There are no options here. */ outl(0x00800080, ioaddr + TxIntrSel); /* Interrupt on Tx abort */ @@ -558,25 +603,27 @@ yellowfin_open(struct device *dev) /* Enable automatic generation of flow control frames, period 0xffff. */ outl(0x0030FFFF, ioaddr + FlowCtrl); + yp->tx_threshold = 32; + outl(yp->tx_threshold, ioaddr + TxThreshold); + if (dev->if_port == 0) dev->if_port = yp->default_port; - dev->tbusy = 0; - dev->interrupt = 0; yp->in_interrupt = 0; - /* We are always in full-duplex mode with the current chip! */ - yp->full_duplex = 1; - /* Setting the Rx mode will start the Rx process. */ - outw(0x01CD | (yp->full_duplex ? 2 : 0), ioaddr + Cnfg); -#ifdef NEW_MULTICAST + if (yp->drv_flags & IsGigabit) { + /* We are always in full-duplex mode with gigabit! */ + yp->full_duplex = 1; + outw(0x01CF, ioaddr + Cnfg); + } else { + outw(0x0018, ioaddr + FrameGap0); /* 0060/4060 for non-MII 10baseT */ + outw(0x1018, ioaddr + FrameGap1); + outw(0x101C | (yp->full_duplex ? 2 : 0), ioaddr + Cnfg); + } + yp->rx_mode = 0; set_rx_mode(dev); -#else - set_rx_mode(dev, 0, 0); -#endif - - dev->start = 1; + netif_start_tx_queue(dev); /* Enable interrupts by setting the interrupt mask. */ outw(0x81ff, ioaddr + IntrEnb); /* See enum intr_status_bits */ @@ -584,13 +631,13 @@ yellowfin_open(struct device *dev) outl(0x80008000, ioaddr + RxCtrl); /* Start Rx and Tx channels. */ outl(0x80008000, ioaddr + TxCtrl); - if (yellowfin_debug > 2) { - printk("%s: Done yellowfin_open().\n", + if (yp->msg_level & NETIF_MSG_IFUP) + printk(KERN_DEBUG "%s: Done yellowfin_open().\n", dev->name); - } + /* Set the timer to check for link beat. */ init_timer(&yp->timer); - yp->timer.expires = RUN_AT((24*HZ)/10); /* 2.4 sec. */ + yp->timer.expires = jiffies + 3*HZ; yp->timer.data = (unsigned long)dev; yp->timer.function = &yellowfin_timer; /* timer handler */ add_timer(&yp->timer); @@ -600,183 +647,240 @@ yellowfin_open(struct device *dev) static void yellowfin_timer(unsigned long data) { - struct device *dev = (struct device *)data; + struct net_device *dev = (struct net_device *)data; struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; - int ioaddr = dev->base_addr; - int next_tick = 0; + long ioaddr = dev->base_addr; + int next_tick = 60*HZ; - if (yellowfin_debug > 3) { - printk("%s: Yellowfin timer tick, status %8.8x.\n", - dev->name, inl(ioaddr + IntrStatus)); - } - if (next_tick) { - yp->timer.expires = RUN_AT(next_tick); - add_timer(&yp->timer); + if (yp->msg_level & NETIF_MSG_TIMER) + printk(KERN_DEBUG "%s: Yellowfin timer tick, status %8.8x.\n", + dev->name, inw(ioaddr + IntrStatus)); + + if (jiffies - dev->trans_start > TX_TIMEOUT + && yp->cur_tx - yp->dirty_tx > 1 + && netif_queue_paused(dev)) + yellowfin_tx_timeout(dev); + + if (yp->mii_cnt) { + int mii_reg1 = mdio_read(ioaddr, yp->phys[0], 1); + int mii_reg5 = mdio_read(ioaddr, yp->phys[0], 5); + int negotiated = mii_reg5 & yp->advertising; + if (yp->msg_level & NETIF_MSG_TIMER) + printk(KERN_DEBUG "%s: MII #%d status register is %4.4x, " + "link partner capability %4.4x.\n", + dev->name, yp->phys[0], mii_reg1, mii_reg5); + + if ( ! yp->duplex_lock && + ((negotiated & 0x0300) == 0x0100 + || (negotiated & 0x00C0) == 0x0040)) { + yp->full_duplex = 1; + } + outw(0x101C | (yp->full_duplex ? 2 : 0), ioaddr + Cnfg); + + if (mii_reg1 & 0x0004) + next_tick = 60*HZ; + else + next_tick = 3*HZ; } + + yp->timer.expires = jiffies + next_tick; + add_timer(&yp->timer); } -static void yellowfin_tx_timeout(struct device *dev) +static void yellowfin_tx_timeout(struct net_device *dev) { struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; - int ioaddr = dev->base_addr; + long ioaddr = dev->base_addr; - printk("%s: Yellowfin transmit timed out, status %8.8x, resetting...\n", - dev->name, inl(ioaddr)); + printk(KERN_WARNING "%s: Yellowfin transmit timed out at %d/%d Tx " + "status %4.4x, Rx status %4.4x, resetting...\n", + dev->name, yp->cur_tx, yp->dirty_tx, + (int)inl(ioaddr + TxStatus), (int)inl(ioaddr + RxStatus)); -#ifndef __alpha__ - { + /* Note: these should be KERN_DEBUG. */ + if (yp->msg_level & NETIF_MSG_TX_ERR) { int i; - printk(" Rx ring %8.8x: ", (int)yp->rx_ring); + printk(KERN_DEBUG " Rx ring %p: ", yp->rx_ring); for (i = 0; i < RX_RING_SIZE; i++) - printk(" %8.8x", (unsigned int)yp->rx_ring[i].status); - printk("\n Tx ring %8.8x: ", (int)yp->tx_ring); + printk(" %8.8x", yp->rx_ring[i].result_status); + printk("\n"KERN_DEBUG" Tx ring %p: ", yp->tx_ring); for (i = 0; i < TX_RING_SIZE; i++) - printk(" %4.4x /%4.4x", yp->tx_status[i].tx_errs, yp->tx_ring[i].status); + printk(" %4.4x /%8.8x", yp->tx_status[i].tx_errs, + yp->tx_ring[i].result_status); printk("\n"); } -#endif - /* Perhaps we should reinitialize the hardware here. */ - dev->if_port = 0; - /* Stop and restart the chip's Tx processes . */ + /* If the hardware is found to hang regularly, we will update the code + to reinitialize the chip here. */ + dev->if_port = 0; - /* Trigger an immediate transmit demand. */ + /* Wake the potentially-idle transmit channel. */ + outl(0x10001000, dev->base_addr + TxCtrl); + if (yp->cur_tx - yp->dirty_tx < TX_QUEUE_SIZE) + netif_unpause_tx_queue(dev); - dev->trans_start = jiffies; - yp->stats.tx_errors++; - return; + dev->trans_start = jiffies; + yp->stats.tx_errors++; + return; } - /* Initialize the Rx and Tx rings, along with various 'dev' bits. */ -static void -yellowfin_init_ring(struct device *dev) +static void yellowfin_init_ring(struct net_device *dev) { struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; int i; yp->tx_full = 0; yp->cur_rx = yp->cur_tx = 0; - yp->dirty_rx = yp->dirty_tx = 0; + yp->dirty_tx = 0; - for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb; - int pkt_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32); + yp->rx_buf_sz = dev->mtu + 18 + 15; + /* Match other driver's allocation size when possible. */ + if (yp->rx_buf_sz < PKT_BUF_SZ) + yp->rx_buf_sz = PKT_BUF_SZ; + yp->rx_head_desc = &yp->rx_ring[0]; - yp->rx_ring[i].request_cnt = pkt_buf_sz; - yp->rx_ring[i].cmd = CMD_RX_BUF | INTR_ALWAYS; + for (i = 0; i < RX_RING_SIZE; i++) { + yp->rx_ring[i].dbdma_cmd = + cpu_to_le32(CMD_RX_BUF | INTR_ALWAYS | yp->rx_buf_sz); + yp->rx_ring[i].branch_addr = virt_to_le32desc(&yp->rx_ring[i+1]); + } + /* Mark the last entry as wrapping the ring. */ + yp->rx_ring[i-1].branch_addr = virt_to_le32desc(&yp->rx_ring[0]); - skb = DEV_ALLOC_SKB(pkt_buf_sz); - skb_reserve(skb, 2); /* 16 byte align the IP header. */ + for (i = 0; i < RX_RING_SIZE; i++) { + struct sk_buff *skb = dev_alloc_skb(yp->rx_buf_sz); yp->rx_skbuff[i] = skb; if (skb == NULL) - break; /* Bad news! */ + break; skb->dev = dev; /* Mark as being used by this device. */ -#if LINUX_VERSION_CODE > 0x10300 - yp->rx_ring[i].addr = virt_to_bus(skb->tail); -#else - yp->rx_ring[i].addr = virt_to_bus(skb->data); -#endif - yp->rx_ring[i].branch_addr = virt_to_bus(&yp->rx_ring[i+1]); + skb_reserve(skb, 2); /* 16 byte align the IP header. */ + yp->rx_ring[i].addr = virt_to_le32desc(skb->tail); } - /* Mark the last entry as wrapping the ring. */ - yp->rx_ring[i-1].cmd = CMD_RX_BUF | INTR_ALWAYS | BRANCH_ALWAYS; - yp->rx_ring[i-1].branch_addr = virt_to_bus(&yp->rx_ring[0]); + yp->rx_ring[i-1].dbdma_cmd = cpu_to_le32(CMD_STOP); + yp->dirty_rx = (unsigned int)(i - RX_RING_SIZE); -/*#define NO_TXSTATS*/ +#define NO_TXSTATS #ifdef NO_TXSTATS /* In this mode the Tx ring needs only a single descriptor. */ for (i = 0; i < TX_RING_SIZE; i++) { yp->tx_skbuff[i] = 0; - yp->tx_ring[i].cmd = CMD_STOP; - yp->tx_ring[i].branch_addr = virt_to_bus(&yp->tx_ring[i+1]); + yp->tx_ring[i].dbdma_cmd = cpu_to_le32(CMD_STOP); + yp->tx_ring[i].branch_addr = virt_to_le32desc(&yp->tx_ring[i+1]); } - yp->tx_ring[--i].cmd = CMD_STOP | BRANCH_ALWAYS; /* Wrap ring */ - yp->tx_ring[i].branch_addr = virt_to_bus(&yp->tx_ring[0]); + /* Wrap ring */ + yp->tx_ring[--i].dbdma_cmd = cpu_to_le32(CMD_STOP | BRANCH_ALWAYS); + yp->tx_ring[i].branch_addr = virt_to_le32desc(&yp->tx_ring[0]); #else /* Tx ring needs a pair of descriptors, the second for the status. */ for (i = 0; i < TX_RING_SIZE*2; i++) { yp->tx_skbuff[i/2] = 0; - yp->tx_ring[i].cmd = CMD_STOP; /* Branch on Tx error. */ - yp->tx_ring[i].branch_addr = virt_to_bus(&yp->tx_ring[i+1]); + /* Branch on Tx error. */ + yp->tx_ring[i].dbdma_cmd = cpu_to_le32(CMD_STOP); + yp->tx_ring[i].branch_addr = virt_to_le32desc(&yp->tx_ring[i+1]); i++; - yp->tx_ring[i].cmd = CMD_TXSTATUS; /* Interrupt, no wait. */ - yp->tx_ring[i].request_cnt = sizeof(yp->tx_status[i]); - yp->tx_ring[i].addr = virt_to_bus(&yp->tx_status[i/2]); - yp->tx_ring[i].branch_addr = virt_to_bus(&yp->tx_ring[i+1]); + if (yp->flags & FullTxStatus) { + yp->tx_ring[i].dbdma_cmd = + cpu_to_le32(CMD_TXSTATUS | sizeof(yp->tx_status[i])); + yp->tx_ring[i].request_cnt = sizeof(yp->tx_status[i]); + yp->tx_ring[i].addr = virt_to_le32desc(&yp->tx_status[i/2]); + } else { /* Symbios chips write only tx_errs word. */ + yp->tx_ring[i].dbdma_cmd = + cpu_to_le32(CMD_TXSTATUS | INTR_ALWAYS | 2); + yp->tx_ring[i].request_cnt = 2; + yp->tx_ring[i].addr = virt_to_le32desc(&yp->tx_status[i/2].tx_errs); + } + yp->tx_ring[i].branch_addr = virt_to_le32desc(&yp->tx_ring[i+1]); } /* Wrap ring */ - yp->tx_ring[--i].cmd = CMD_TXSTATUS | BRANCH_ALWAYS | INTR_ALWAYS; - yp->tx_ring[i].branch_addr = virt_to_bus(&yp->tx_ring[0]); + yp->tx_ring[--i].dbdma_cmd |= cpu_to_le32(BRANCH_ALWAYS | INTR_ALWAYS); + yp->tx_ring[i].branch_addr = virt_to_le32desc(&yp->tx_ring[0]); #endif + yp->tx_tail_desc = &yp->tx_status[0]; + return; } -static int -yellowfin_start_xmit(struct sk_buff *skb, struct device *dev) +static int yellowfin_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; unsigned entry; +#if LINUX_VERSION_CODE < 0x20323 /* Block a timer-based transmit from overlapping. This could better be done with atomic_swap(1, dev->tbusy), but set_bit() works as well. */ - if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) { - if (jiffies - dev->trans_start < TX_TIMEOUT) - return 1; - yellowfin_tx_timeout(dev); + if (netif_pause_tx_queue(dev) != 0) { + /* This watchdog code is redundant with the media monitor timer. */ + if (jiffies - dev->trans_start > TX_TIMEOUT) + yellowfin_tx_timeout(dev); return 1; } +#endif - /* Caution: the write order is important here, set the base address - with the "ownership" bits last. */ + /* Note: Ordering is important here, set the field with the + "ownership" bit last, and only then increment cur_tx. */ /* Calculate the next Tx descriptor entry. */ entry = yp->cur_tx % TX_RING_SIZE; yp->tx_skbuff[entry] = skb; + if (gx_fix) { /* Note: only works for paddable protocols e.g. IP. */ + int cacheline_end = (virt_to_bus(skb->data) + skb->len) % 32; + /* Fix GX chipset errata. */ + if (cacheline_end > 24 || cacheline_end == 0) + skb->len += 32 - cacheline_end + 1; + } #ifdef NO_TXSTATS - yp->tx_ring[entry].request_cnt = skb->len; - yp->tx_ring[entry].addr = virt_to_bus(skb->data); - yp->tx_ring[entry].status = 0; + yp->tx_ring[entry].addr = virt_to_le32desc(skb->data); + yp->tx_ring[entry].result_status = 0; if (entry >= TX_RING_SIZE-1) { - yp->tx_ring[0].cmd = CMD_STOP; /* New stop command. */ - yp->tx_ring[TX_RING_SIZE-1].cmd = CMD_TX_PKT | BRANCH_ALWAYS; + /* New stop command. */ + yp->tx_ring[0].dbdma_cmd = cpu_to_le32(CMD_STOP); + yp->tx_ring[TX_RING_SIZE-1].dbdma_cmd = + cpu_to_le32(CMD_TX_PKT|BRANCH_ALWAYS | skb->len); } else { - yp->tx_ring[entry+1].cmd = CMD_STOP; /* New stop command. */ - yp->tx_ring[entry].cmd = CMD_TX_PKT | BRANCH_IFTRUE; + yp->tx_ring[entry+1].dbdma_cmd = cpu_to_le32(CMD_STOP); + yp->tx_ring[entry].dbdma_cmd = + cpu_to_le32(CMD_TX_PKT | BRANCH_IFTRUE | skb->len); } yp->cur_tx++; #else yp->tx_ring[entry<<1].request_cnt = skb->len; - yp->tx_ring[entry<<1].addr = virt_to_bus(skb->data); + yp->tx_ring[entry<<1].addr = virt_to_le32desc(skb->data); /* The input_last (status-write) command is constant, but we must rewrite the subsequent 'stop' command. */ yp->cur_tx++; { unsigned next_entry = yp->cur_tx % TX_RING_SIZE; - yp->tx_ring[next_entry<<1].cmd = CMD_STOP; + yp->tx_ring[next_entry<<1].dbdma_cmd = cpu_to_le32(CMD_STOP); } /* Final step -- overwrite the old 'stop' command. */ - yp->tx_ring[entry<<1].cmd = - (entry % 6) == 0 ? CMD_TX_PKT | INTR_ALWAYS | BRANCH_IFTRUE : - CMD_TX_PKT | BRANCH_IFTRUE; + yp->tx_ring[entry<<1].dbdma_cmd = + cpu_to_le32( ((entry % 6) == 0 ? CMD_TX_PKT|INTR_ALWAYS|BRANCH_IFTRUE : + CMD_TX_PKT | BRANCH_IFTRUE) | skb->len); #endif - /* Todo: explicitly flush cache lines here. */ + /* Non-x86 Todo: explicitly flush cache lines here. */ /* Wake the potentially-idle transmit channel. */ outl(0x10001000, dev->base_addr + TxCtrl); - if (yp->cur_tx - yp->dirty_tx < TX_RING_SIZE - 1) - clear_bit(0, (void*)&dev->tbusy); /* Typical path */ - else + if (yp->cur_tx - yp->dirty_tx >= TX_QUEUE_SIZE) { + netif_stop_tx_queue(dev); yp->tx_full = 1; + if (yp->cur_tx - (volatile int)yp->dirty_tx < TX_QUEUE_SIZE) { + netif_unpause_tx_queue(dev); + yp->tx_full = 0; + } else + netif_stop_tx_queue(dev); + } else + netif_unpause_tx_queue(dev); /* Typical path */ dev->trans_start = jiffies; - if (yellowfin_debug > 4) { - printk("%s: Yellowfin transmit frame #%d queued in slot %d.\n", + if (yp->msg_level & NETIF_MSG_TX_QUEUED) { + printk(KERN_DEBUG "%s: Yellowfin transmit frame #%d queued in slot %d.\n", dev->name, yp->cur_tx, entry); } return 0; @@ -784,316 +888,331 @@ yellowfin_start_xmit(struct sk_buff *skb, struct device *dev) /* The interrupt handler does all of the Rx thread work and cleans up after the Tx thread. */ -static void yellowfin_interrupt IRQ(int irq, void *dev_instance, struct pt_regs *regs) +static void yellowfin_interrupt(int irq, void *dev_instance, struct pt_regs *regs) { -#ifdef SA_SHIRQ /* Use the now-standard shared IRQ implementation. */ - struct device *dev = (struct device *)dev_instance; -#else - struct device *dev = (struct device *)(irq2dev_map[irq]); -#endif - - struct yellowfin_private *lp; - int ioaddr, boguscnt = max_interrupt_work; + struct net_device *dev = (struct net_device *)dev_instance; + struct yellowfin_private *yp; + long ioaddr; + int boguscnt = max_interrupt_work; +#ifndef final_version /* Can never occur. */ if (dev == NULL) { - printk ("yellowfin_interrupt(): irq %d for unknown device.\n", irq); + printk (KERN_ERR "yellowfin_interrupt(): irq %d for unknown device.\n", irq); return; } +#endif ioaddr = dev->base_addr; - lp = (struct yellowfin_private *)dev->priv; - if (test_and_set_bit(0, (void*)&lp->in_interrupt)) { - dev->interrupt = 1; + yp = (struct yellowfin_private *)dev->priv; + if (test_and_set_bit(0, (void*)&yp->in_interrupt)) { printk(KERN_ERR "%s: Re-entering the interrupt handler.\n", dev->name); return; } do { u16 intr_status = inw(ioaddr + IntrClear); - unsigned dirty_tx = lp->dirty_tx; - if (yellowfin_debug > 4) - printk("%s: Yellowfin interrupt, status %4.4x.\n", + if (yp->msg_level & NETIF_MSG_INTR) + printk(KERN_DEBUG "%s: Yellowfin interrupt, status %4.4x.\n", dev->name, intr_status); if (intr_status == 0) break; - if (intr_status & (IntrRxDone | IntrEarlyRx)) + if (intr_status & (IntrRxDone | IntrEarlyRx)) { yellowfin_rx(dev); + outl(0x10001000, ioaddr + RxCtrl); /* Wake Rx engine. */ + } #ifdef NO_TXSTATS - for (; lp->cur_tx - dirty_tx > 0; dirty_tx++) { - int entry = dirty_tx % TX_RING_SIZE; - if (lp->tx_ring[entry].status == 0) + for (; yp->cur_tx - yp->dirty_tx > 0; yp->dirty_tx++) { + int entry = yp->dirty_tx % TX_RING_SIZE; + if (yp->tx_ring[entry].result_status == 0) break; + yp->stats.tx_packets++; +#if LINUX_VERSION_CODE > 0x20127 + yp->stats.tx_bytes += yp->tx_skbuff[entry]->len; +#endif /* Free the original skb. */ - dev_kfree_skb(lp->tx_skbuff[entry], FREE_WRITE); - lp->tx_skbuff[entry] = 0; - lp->stats.tx_packets++; + dev_free_skb_irq(yp->tx_skbuff[entry]); + yp->tx_skbuff[entry] = 0; } - if (lp->tx_full && dev->tbusy - && lp->cur_tx - dirty_tx < TX_RING_SIZE - 4) { + if (yp->tx_full + && yp->cur_tx - yp->dirty_tx < TX_QUEUE_SIZE - 4) { /* The ring is no longer full, clear tbusy. */ - lp->tx_full = 0; - clear_bit(0, (void*)&dev->tbusy); - mark_bh(NET_BH); + yp->tx_full = 0; + netif_resume_tx_queue(dev); } - lp->dirty_tx = dirty_tx; #else if (intr_status & IntrTxDone - || lp->tx_status[dirty_tx % TX_RING_SIZE].tx_errs) { + || yp->tx_tail_desc->tx_errs) { + unsigned dirty_tx = yp->dirty_tx; - for (dirty_tx = lp->dirty_tx; lp->cur_tx - dirty_tx > 0; + for (dirty_tx = yp->dirty_tx; yp->cur_tx - dirty_tx > 0; dirty_tx++) { /* Todo: optimize this. */ int entry = dirty_tx % TX_RING_SIZE; - u16 tx_errs = lp->tx_status[entry].tx_errs; + u16 tx_errs = yp->tx_status[entry].tx_errs; +#ifndef final_version + if (yp->msg_level & NETIF_MSG_INTR) + printk(KERN_DEBUG "%s: Tx queue %d check, Tx status " + "%4.4x %4.4x %4.4x %4.4x.\n", + dev->name, entry, + yp->tx_status[entry].tx_cnt, + yp->tx_status[entry].tx_errs, + yp->tx_status[entry].total_tx_cnt, + yp->tx_status[entry].paused); +#endif if (tx_errs == 0) break; /* It still hasn't been Txed */ - if (tx_errs & 0xF8100000) { + if (tx_errs & 0xF810) { /* There was an major error, log it. */ #ifndef final_version - if (yellowfin_debug > 1) - printk("%s: Transmit error, Tx status %4.4x.\n", + if (yp->msg_level & NETIF_MSG_TX_ERR) + printk(KERN_DEBUG "%s: Transmit error, Tx status %4.4x.\n", dev->name, tx_errs); #endif - lp->stats.tx_errors++; - if (tx_errs & 0xF800) lp->stats.tx_aborted_errors++; - if (tx_errs & 0x0800) lp->stats.tx_carrier_errors++; - if (tx_errs & 0x2000) lp->stats.tx_window_errors++; - if (tx_errs & 0x8000) lp->stats.tx_fifo_errors++; + yp->stats.tx_errors++; + if (tx_errs & 0xF800) yp->stats.tx_aborted_errors++; + if (tx_errs & 0x0800) yp->stats.tx_carrier_errors++; + if (tx_errs & 0x2000) yp->stats.tx_window_errors++; + if (tx_errs & 0x8000) yp->stats.tx_fifo_errors++; #ifdef ETHER_STATS - if (tx_errs & 0x1000) lp->stats.collisions16++; + if (tx_errs & 0x1000) yp->stats.collisions16++; #endif } else { +#ifndef final_version + if (yp->msg_level & NETIF_MSG_TX_DONE) + printk(KERN_DEBUG "%s: Normal transmit, Tx status %4.4x.\n", + dev->name, tx_errs); +#endif #ifdef ETHER_STATS - if (status & 0x0400) lp->stats.tx_deferred++; + if (tx_errs & 0x0400) yp->stats.tx_deferred++; +#endif +#if LINUX_VERSION_CODE > 0x20127 + yp->stats.tx_bytes += yp->tx_skbuff[entry]->len; #endif - lp->stats.collisions += tx_errs & 15; - lp->stats.tx_packets++; + yp->stats.collisions += tx_errs & 15; + yp->stats.tx_packets++; } - /* Free the original skb. */ - dev_kfree_skb(lp->tx_skbuff[entry], FREE_WRITE); - lp->tx_skbuff[entry] = 0; + dev_free_skb_irq(yp->tx_skbuff[entry]); + yp->tx_skbuff[entry] = 0; /* Mark status as empty. */ - lp->tx_status[entry].tx_errs = 0; + yp->tx_status[entry].tx_errs = 0; } #ifndef final_version - if (lp->cur_tx - dirty_tx > TX_RING_SIZE) { - printk("%s: Out-of-sync dirty pointer, %d vs. %d, full=%d.\n", - dev->name, dirty_tx, lp->cur_tx, lp->tx_full); + if (yp->cur_tx - dirty_tx > TX_RING_SIZE) { + printk(KERN_ERR "%s: Out-of-sync dirty pointer, %d vs. %d, full=%d.\n", + dev->name, dirty_tx, yp->cur_tx, yp->tx_full); dirty_tx += TX_RING_SIZE; } #endif - if (lp->tx_full && dev->tbusy - && lp->cur_tx - dirty_tx < TX_RING_SIZE - 2) { + if (yp->tx_full + && yp->cur_tx - dirty_tx < TX_QUEUE_SIZE - 2) { /* The ring is no longer full, clear tbusy. */ - lp->tx_full = 0; - clear_bit(0, (void*)&dev->tbusy); - mark_bh(NET_BH); + yp->tx_full = 0; + netif_resume_tx_queue(dev); } - lp->dirty_tx = dirty_tx; + yp->dirty_tx = dirty_tx; + yp->tx_tail_desc = &yp->tx_status[dirty_tx % TX_RING_SIZE]; } #endif - /* Log errors and other events. */ - if (intr_status & 0x2ee) { /* Abnormal error summary. */ - printk("%s: Something Wicked happened! %4.4x.\n", - dev->name, intr_status); - /* Hmmmmm, it's not clear what to do here. */ - if (intr_status & (IntrTxPCIErr | IntrTxPCIFault)) - lp->stats.tx_errors++; - if (intr_status & (IntrRxPCIErr | IntrRxPCIFault)) - lp->stats.rx_errors++; - } + /* Log errors and other uncommon events. */ + if (intr_status & 0x2ee) /* Abnormal error summary. */ + yellowfin_error(dev, intr_status); + if (--boguscnt < 0) { - printk("%s: Too much work at interrupt, status=0x%4.4x.\n", + printk(KERN_WARNING "%s: Too much work at interrupt, " + "status=0x%4.4x.\n", dev->name, intr_status); break; } } while (1); - if (yellowfin_debug > 3) - printk("%s: exiting interrupt, status=%#4.4x.\n", + if (yp->msg_level & NETIF_MSG_INTR) + printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n", dev->name, inw(ioaddr + IntrStatus)); - /* Code that should never be run! Perhaps remove after testing.. */ - { - static int stopit = 10; - if (dev->start == 0 && --stopit < 0) { - printk("%s: Emergency stop, looping startup interrupt.\n", - dev->name); -#ifdef SA_SHIRQ - free_irq(irq, dev); -#else - free_irq(irq); -#endif - } - } - - dev->interrupt = 0; - clear_bit(0, (void*)&lp->in_interrupt); + clear_bit(0, (void*)&yp->in_interrupt); return; } /* This routine is logically part of the interrupt handler, but separated for clarity and better register allocation. */ -static int -yellowfin_rx(struct device *dev) +static int yellowfin_rx(struct net_device *dev) { - struct yellowfin_private *lp = (struct yellowfin_private *)dev->priv; struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; - int entry = lp->cur_rx % RX_RING_SIZE; - int boguscnt = 20; - - if (yellowfin_debug > 4) { - printk(" In yellowfin_rx(), entry %d status %4.4x.\n", entry, - yp->rx_ring[entry].status); - printk(" #%d desc. %4.4x %4.4x %8.8x %4.4x %4.4x.\n", - entry, yp->rx_ring[entry].cmd, - yp->rx_ring[entry].request_cnt, yp->rx_ring[entry].addr, - yp->rx_ring[entry].result_cnt, yp->rx_ring[entry].status); + int entry = yp->cur_rx % RX_RING_SIZE; + int boguscnt = yp->dirty_rx + RX_RING_SIZE - yp->cur_rx; + + if (yp->msg_level & NETIF_MSG_RX_STATUS) { + printk(KERN_DEBUG " In yellowfin_rx(), entry %d status %8.8x.\n", + entry, yp->rx_ring[entry].result_status); + printk(KERN_DEBUG " #%d desc. %8.8x %8.8x %8.8x.\n", + entry, yp->rx_ring[entry].dbdma_cmd, yp->rx_ring[entry].addr, + yp->rx_ring[entry].result_status); } - /* If EOP is set on the next entry, it's a new packet. Send it up. */ - while (yp->rx_ring[entry].status) { - /* Todo: optimize this mess. */ - u16 desc_status = yp->rx_ring[entry].status; - struct yellowfin_desc *desc = &lp->rx_ring[entry]; - int frm_size = desc->request_cnt - desc->result_cnt; - u8 *buf_addr = bus_to_virt(lp->rx_ring[entry].addr); - s16 frame_status = *(s16*)&(buf_addr[frm_size - 2]); - - if (yellowfin_debug > 4) - printk(" yellowfin_rx() status was %4.4x.\n", frame_status); + while (yp->rx_head_desc->result_status) { + struct yellowfin_desc *desc = yp->rx_head_desc; + u16 desc_status = le32_to_cpu(desc->result_status) >> 16; + int data_size = + (le32_to_cpu(desc->dbdma_cmd) - le32_to_cpu(desc->result_status)) + & 0xffff; + u8 *buf_addr = le32desc_to_virt(desc->addr); + s16 frame_status = get_unaligned((s16*)&(buf_addr[data_size - 2])); + + if (yp->msg_level & NETIF_MSG_RX_STATUS) + printk(KERN_DEBUG " yellowfin_rx() status was %4.4x.\n", + frame_status); if (--boguscnt < 0) break; if ( ! (desc_status & RX_EOP)) { - printk("%s: Oversized Ethernet frame spanned multiple buffers," + printk(KERN_WARNING "%s: Oversized Ethernet frame spanned multiple buffers," " status %4.4x!\n", dev->name, desc_status); - lp->stats.rx_length_errors++; - } else if (frame_status & 0x0038) { + yp->stats.rx_length_errors++; + } else if ((yp->drv_flags & IsGigabit) && (frame_status & 0x0038)) { /* There was a error. */ - if (yellowfin_debug > 3) - printk(" yellowfin_rx() Rx error was %4.4x.\n", frame_status); - lp->stats.rx_errors++; - if (frame_status & 0x0060) lp->stats.rx_length_errors++; - if (frame_status & 0x0008) lp->stats.rx_frame_errors++; - if (frame_status & 0x0010) lp->stats.rx_crc_errors++; - if (frame_status < 0) lp->stats.rx_dropped++; + if (yp->msg_level & NETIF_MSG_RX_ERR) + printk(KERN_DEBUG " yellowfin_rx() Rx error was %4.4x.\n", + frame_status); + yp->stats.rx_errors++; + if (frame_status & 0x0060) yp->stats.rx_length_errors++; + if (frame_status & 0x0008) yp->stats.rx_frame_errors++; + if (frame_status & 0x0010) yp->stats.rx_crc_errors++; + if (frame_status < 0) yp->stats.rx_dropped++; + } else if ( !(yp->drv_flags & IsGigabit) && + ((buf_addr[data_size-1] & 0x85) || buf_addr[data_size-2] & 0xC0)) { + u8 status1 = buf_addr[data_size-2]; + u8 status2 = buf_addr[data_size-1]; + yp->stats.rx_errors++; + if (status1 & 0xC0) yp->stats.rx_length_errors++; + if (status2 & 0x03) yp->stats.rx_frame_errors++; + if (status2 & 0x04) yp->stats.rx_crc_errors++; + if (status2 & 0x80) yp->stats.rx_dropped++; #ifdef YF_PROTOTYPE /* Support for prototype hardware errata. */ - } else if (memcmp(bus_to_virt(lp->rx_ring[entry].addr), + } else if ((yp->flags & HasMACAddrBug) && + memcmp(le32desc_to_virt(yp->rx_ring[entry].addr), dev->dev_addr, 6) != 0 - && memcmp(bus_to_virt(lp->rx_ring[entry].addr), + && memcmp(le32desc_to_virt(yp->rx_ring[entry].addr), "\377\377\377\377\377\377", 6) != 0) { - printk("%s: Bad frame to %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n", - dev->name, - ((char *)bus_to_virt(lp->rx_ring[entry].addr))[0], - ((char *)bus_to_virt(lp->rx_ring[entry].addr))[1], - ((char *)bus_to_virt(lp->rx_ring[entry].addr))[2], - ((char *)bus_to_virt(lp->rx_ring[entry].addr))[3], - ((char *)bus_to_virt(lp->rx_ring[entry].addr))[4], - ((char *)bus_to_virt(lp->rx_ring[entry].addr))[5]); - bogus_rx++; + if (bogus_rx++ == 0) + printk(KERN_WARNING "%s: Bad frame to %2.2x:%2.2x:%2.2x:%2.2x:" + "%2.2x:%2.2x.\n", + dev->name, buf_addr[0], buf_addr[1], buf_addr[2], + buf_addr[3], buf_addr[4], buf_addr[5]); #endif } else { - u8 bogus_cnt = buf_addr[frm_size - 8]; - int pkt_len = frm_size - 8 - bogus_cnt; struct sk_buff *skb; - int rx_in_place = 0; - - /* Check if the packet is long enough to just accept without - copying to a properly sized skbuff. */ - if (pkt_len > rx_copybreak) { - struct sk_buff *newskb; - char *temp; - - /* Get a fresh skbuff to replace the filled one. */ - newskb = DEV_ALLOC_SKB(dev->mtu <= 1500 ? PKT_BUF_SZ - : dev->mtu + 32); - if (newskb == NULL) { - skb = 0; /* No memory, drop the packet. */ - goto memory_squeeze; - } - /* Pass up the skb already on the Rx ring. */ - skb = lp->rx_skbuff[entry]; - temp = skb_put(skb, pkt_len); - if (bus_to_virt(lp->rx_ring[entry].addr) != temp) - printk("%s: Warning -- the skbuff addresses do not match" - " in yellowfin_rx: %p vs. %p / %p.\n", dev->name, - bus_to_virt(lp->rx_ring[entry].addr), + int pkt_len = data_size - + (yp->chip_id ? 7 : 8 + buf_addr[data_size - 8]); + /* To verify: Yellowfin Length should omit the CRC! */ + +#ifndef final_version + if (yp->msg_level & NETIF_MSG_RX_STATUS) + printk(KERN_DEBUG " yellowfin_rx() normal Rx pkt length %d" + " of %d, bogus_cnt %d.\n", + pkt_len, data_size, boguscnt); +#endif + /* Check if the packet is long enough to just pass up the skbuff + without copying to a properly sized skbuff. */ + if (pkt_len > yp->rx_copybreak) { + char *temp = skb_put(skb = yp->rx_skbuff[entry], pkt_len); + yp->rx_skbuff[entry] = NULL; +#ifndef final_version /* Remove after testing. */ + if (le32desc_to_virt(yp->rx_ring[entry].addr) != temp) + printk(KERN_ERR "%s: Internal fault: The skbuff addresses " + "do not match in yellowfin_rx: %p vs. %p / %p.\n", + dev->name, + le32desc_to_virt(yp->rx_ring[entry].addr), skb->head, temp); - rx_in_place = 1; - lp->rx_skbuff[entry] = newskb; - newskb->dev = dev; - skb_reserve(newskb, 2); /* 16 byte align IP header */ - lp->rx_ring[entry].addr = virt_to_bus(newskb->tail); - } else - skb = DEV_ALLOC_SKB(pkt_len + 2); - memory_squeeze: - if (skb == NULL) { - printk("%s: Memory squeeze, deferring packet.\n", dev->name); - /* todo: Check that at least two ring entries are free. - If not, free one and mark stats->rx_dropped++. */ - break; - } - skb->dev = dev; - if (! rx_in_place) { - skb_reserve(skb, 2); /* 16 byte align the data fields */ - memcpy(skb_put(skb, pkt_len), - bus_to_virt(lp->rx_ring[entry].addr), pkt_len); - } -#if LINUX_VERSION_CODE > 0x10300 - skb->protocol = eth_type_trans(skb, dev); +#endif + } else { + skb = dev_alloc_skb(pkt_len + 2); + if (skb == NULL) + break; + skb->dev = dev; + skb_reserve(skb, 2); /* 16 byte align the IP header */ +#if HAS_IP_COPYSUM + eth_copy_and_sum(skb, yp->rx_skbuff[entry]->tail, pkt_len, 0); + skb_put(skb, pkt_len); #else - skb->len = pkt_len; + memcpy(skb_put(skb, pkt_len), yp->rx_skbuff[entry]->tail, + pkt_len); #endif + } + skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); - lp->stats.rx_packets++; + dev->last_rx = jiffies; + yp->stats.rx_packets++; +#if LINUX_VERSION_CODE > 0x20127 + yp->stats.rx_bytes += pkt_len; +#endif } + entry = (++yp->cur_rx) % RX_RING_SIZE; + yp->rx_head_desc = &yp->rx_ring[entry]; + } - /* Mark this entry as being the end-of-list, and the prior entry - as now valid. */ - lp->rx_ring[entry].cmd = CMD_STOP; - yp->rx_ring[entry].status = 0; - { - int prev_entry = entry - 1; - if (prev_entry < 0) - lp->rx_ring[RX_RING_SIZE - 1].cmd = - CMD_RX_BUF | INTR_ALWAYS | BRANCH_ALWAYS; - else - lp->rx_ring[prev_entry].cmd = CMD_RX_BUF | INTR_ALWAYS; + /* Refill the Rx ring buffers. */ + for (; yp->cur_rx - yp->dirty_rx > 0; yp->dirty_rx++) { + entry = yp->dirty_rx % RX_RING_SIZE; + if (yp->rx_skbuff[entry] == NULL) { + struct sk_buff *skb = dev_alloc_skb(yp->rx_buf_sz); + yp->rx_skbuff[entry] = skb; + if (skb == NULL) + break; /* Better luck next round. */ + skb->dev = dev; /* Mark as being used by this device. */ + skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ + yp->rx_ring[entry].addr = virt_to_le32desc(skb->tail); } - entry = (++lp->cur_rx) % RX_RING_SIZE; + yp->rx_ring[entry].dbdma_cmd = cpu_to_le32(CMD_STOP); + yp->rx_ring[entry].result_status = 0; /* Clear complete bit. */ + if (entry != 0) + yp->rx_ring[entry - 1].dbdma_cmd = + cpu_to_le32(CMD_RX_BUF | INTR_ALWAYS | yp->rx_buf_sz); + else + yp->rx_ring[RX_RING_SIZE - 1].dbdma_cmd = + cpu_to_le32(CMD_RX_BUF | INTR_ALWAYS | BRANCH_ALWAYS + | yp->rx_buf_sz); } - /* todo: restart Rx engine if stopped. For now we just make the Rx ring - large enough to avoid this. */ return 0; } -static int -yellowfin_close(struct device *dev) +static void yellowfin_error(struct net_device *dev, int intr_status) { - int ioaddr = dev->base_addr; + struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; + + printk(KERN_ERR "%s: Something Wicked happened! %4.4x.\n", + dev->name, intr_status); + /* Hmmmmm, it's not clear what to do here. */ + if (intr_status & (IntrTxPCIErr | IntrTxPCIFault)) + yp->stats.tx_errors++; + if (intr_status & (IntrRxPCIErr | IntrRxPCIFault)) + yp->stats.rx_errors++; +} + +static int yellowfin_close(struct net_device *dev) +{ + long ioaddr = dev->base_addr; struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; int i; - dev->start = 0; - dev->tbusy = 1; + netif_stop_tx_queue(dev); - if (yellowfin_debug > 1) { - printk("%s: Shutting down ethercard, status was Tx %4.4x Rx %4.4x Int %2.2x.\n", + if (yp->msg_level & NETIF_MSG_IFDOWN) { + printk(KERN_DEBUG "%s: Shutting down ethercard, status was Tx %4.4x " + "Rx %4.4x Int %2.2x.\n", dev->name, inw(ioaddr + TxStatus), - inw(ioaddr + RxStatus), inl(ioaddr + IntrStatus)); - printk("%s: Queue pointers were Tx %d / %d, Rx %d / %d.\n", + inw(ioaddr + RxStatus), inw(ioaddr + IntrStatus)); + printk(KERN_DEBUG "%s: Queue pointers were Tx %d / %d, Rx %d / %d.\n", dev->name, yp->cur_tx, yp->dirty_tx, yp->cur_rx, yp->dirty_rx); } @@ -1106,34 +1225,34 @@ yellowfin_close(struct device *dev) del_timer(&yp->timer); -#ifdef __i386__ - if (yellowfin_debug > 2) { - printk("\n Tx ring at %8.8x:\n", (int)virt_to_bus(yp->tx_ring)); +#if defined(__i386__) + if (yp->msg_level & NETIF_MSG_IFDOWN) { + printk("\n"KERN_DEBUG" Tx ring at %8.8x:\n", + (int)virt_to_bus(yp->tx_ring)); for (i = 0; i < TX_RING_SIZE*2; i++) - printk(" %c #%d desc. %4.4x %4.4x %8.8x %8.8x %4.4x %4.4x.\n", + printk(" %c #%d desc. %8.8x %8.8x %8.8x %8.8x.\n", inl(ioaddr + TxPtr) == (long)&yp->tx_ring[i] ? '>' : ' ', - i, yp->tx_ring[i].cmd, - yp->tx_ring[i].request_cnt, yp->tx_ring[i].addr, - yp->tx_ring[i].branch_addr, - yp->tx_ring[i].result_cnt, yp->tx_ring[i].status); - printk(" Tx status %p:\n", yp->tx_status); + i, yp->tx_ring[i].dbdma_cmd, yp->tx_ring[i].addr, + yp->tx_ring[i].branch_addr, yp->tx_ring[i].result_status); + printk(KERN_DEBUG " Tx status %p:\n", yp->tx_status); for (i = 0; i < TX_RING_SIZE; i++) - printk(" #%d status %4.4x %4.4x %4.4x %4.4x.\n", + printk(KERN_DEBUG " #%d status %4.4x %4.4x %4.4x %4.4x.\n", i, yp->tx_status[i].tx_cnt, yp->tx_status[i].tx_errs, yp->tx_status[i].total_tx_cnt, yp->tx_status[i].paused); - printk("\n Rx ring %8.8x:\n", (int)virt_to_bus(yp->rx_ring)); + printk("\n"KERN_DEBUG " Rx ring %8.8x:\n", + (int)virt_to_bus(yp->rx_ring)); for (i = 0; i < RX_RING_SIZE; i++) { - printk(" %c #%d desc. %4.4x %4.4x %8.8x %4.4x %4.4x\n", + printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x %8.8x\n", inl(ioaddr + RxPtr) == (long)&yp->rx_ring[i] ? '>' : ' ', - i, yp->rx_ring[i].cmd, - yp->rx_ring[i].request_cnt, yp->rx_ring[i].addr, - yp->rx_ring[i].result_cnt, yp->rx_ring[i].status); - if (yellowfin_debug > 5) { - if (*(u8*)yp->rx_ring[i].addr != 0x69) { + i, yp->rx_ring[i].dbdma_cmd, yp->rx_ring[i].addr, + yp->rx_ring[i].result_status); + if (yp->msg_level & NETIF_MSG_PKTDATA) { + if (get_unaligned((u8*)yp->rx_ring[i].addr) != 0x69) { int j; for (j = 0; j < 0x50; j++) - printk(" %4.4x", ((u16*)yp->rx_ring[i].addr)[j]); + printk(" %4.4x", + get_unaligned(((u16*)yp->rx_ring[i].addr) + j)); printk("\n"); } } @@ -1141,34 +1260,29 @@ yellowfin_close(struct device *dev) } #endif /* __i386__ debugging only */ -#ifdef SA_SHIRQ free_irq(dev->irq, dev); -#else - free_irq(dev->irq); - irq2dev_map[dev->irq] = 0; -#endif /* Free all the skbuffs in the Rx queue. */ for (i = 0; i < RX_RING_SIZE; i++) { - yp->rx_ring[i].cmd = CMD_STOP; + yp->rx_ring[i].dbdma_cmd = cpu_to_le32(CMD_STOP); yp->rx_ring[i].addr = 0xBADF00D0; /* An invalid address. */ if (yp->rx_skbuff[i]) { #if LINUX_VERSION_CODE < 0x20100 yp->rx_skbuff[i]->free = 1; #endif - dev_kfree_skb(yp->rx_skbuff[i], FREE_WRITE); + dev_free_skb(yp->rx_skbuff[i]); } yp->rx_skbuff[i] = 0; } for (i = 0; i < TX_RING_SIZE; i++) { if (yp->tx_skbuff[i]) - dev_kfree_skb(yp->tx_skbuff[i], FREE_WRITE); + dev_free_skb(yp->tx_skbuff[i]); yp->tx_skbuff[i] = 0; } #ifdef YF_PROTOTYPE /* Support for prototype hardware errata. */ - if (yellowfin_debug > 0) { - printk("%s: Received %d frames that we should not have.\n", + if (yp->msg_level & NETIF_MSG_IFDOWN) { + printk(KERN_DEBUG "%s: Received %d frames that we should not have.\n", dev->name, bogus_rx); } #endif @@ -1177,8 +1291,7 @@ yellowfin_close(struct device *dev) return 0; } -static struct enet_statistics * -yellowfin_get_stats(struct device *dev) +static struct net_device_stats *yellowfin_get_stats(struct net_device *dev) { struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; return &yp->stats; @@ -1190,6 +1303,7 @@ yellowfin_get_stats(struct device *dev) N.B. Do not use for bulk data, use a table-based routine instead. This is common code and should be moved to net/core/crc.c */ static unsigned const ethernet_polynomial_le = 0xedb88320U; + static inline unsigned ether_crc_le(int length, unsigned char *data) { unsigned int crc = 0xffffffff; /* Initial value. */ @@ -1208,82 +1322,147 @@ static inline unsigned ether_crc_le(int length, unsigned char *data) } -#ifdef NEW_MULTICAST -static void set_rx_mode(struct device *dev) -#else -static void set_rx_mode(struct device *dev, int num_addrs, void *addrs); -#endif +static void set_rx_mode(struct net_device *dev) { - int ioaddr = dev->base_addr; - u16 cfg_value = inw(ioaddr + Cnfg); + struct yellowfin_private *yp = (struct yellowfin_private *)dev->priv; + u16 hash_table[4] = {0, 0, 0, 0}; + int mc_change = 0; + int new_rx_mode, i; - /* Stop the Rx process to change any value. */ - outw(cfg_value & ~0x1000, ioaddr + Cnfg); if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ /* Unconditionally log net taps. */ - printk("%s: Promiscuous mode enabled.\n", dev->name); - outw(0x000F, ioaddr + AddrMode); - } else if ((dev->mc_count > 64) || (dev->flags & IFF_ALLMULTI)) { + printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name); + new_rx_mode = 0x000F; + } else if (dev->mc_count > yp->multicast_filter_limit + || (dev->flags & IFF_ALLMULTI)) { /* Too many to filter well, or accept all multicasts. */ - outw(0x000B, ioaddr + AddrMode); + new_rx_mode = 0x000B; } else if (dev->mc_count > 0) { /* Must use the multicast hash table. */ struct dev_mc_list *mclist; - u16 hash_table[4]; - int i; - memset(hash_table, 0, sizeof(hash_table)); + for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count; i++, mclist = mclist->next) { /* Due to a bug in the early chip versions, multiple filter slots must be set for each address. */ - set_bit((ether_crc_le(3, mclist->dmi_addr) >> 3) & 0x3f, - hash_table); - set_bit((ether_crc_le(4, mclist->dmi_addr) >> 3) & 0x3f, - hash_table); - set_bit((ether_crc_le(5, mclist->dmi_addr) >> 3) & 0x3f, - hash_table); + if (yp->drv_flags & HasMulticastBug) { + set_bit((ether_crc_le(3, mclist->dmi_addr) >> 3) & 0x3f, + hash_table); + set_bit((ether_crc_le(4, mclist->dmi_addr) >> 3) & 0x3f, + hash_table); + set_bit((ether_crc_le(5, mclist->dmi_addr) >> 3) & 0x3f, + hash_table); + } set_bit((ether_crc_le(6, mclist->dmi_addr) >> 3) & 0x3f, hash_table); } + if (memcmp(hash_table, yp->mc_filter, sizeof hash_table) != 0) + mc_change = 1; + new_rx_mode = 0x0003; + } else { /* Normal, unicast/broadcast-only mode. */ + new_rx_mode = 0x0001; + } + + /* Stop the Rx process to change any value. */ + if (yp->rx_mode != new_rx_mode || mc_change) { + long ioaddr = dev->base_addr; + u16 cfg_value = inw(ioaddr + Cnfg); + + outw(cfg_value & ~0x1000, ioaddr + Cnfg); + + yp->rx_mode = new_rx_mode; + outw(new_rx_mode, ioaddr + AddrMode); + memcpy(yp->mc_filter, hash_table, sizeof hash_table); /* Copy the hash table to the chip. */ for (i = 0; i < 4; i++) outw(hash_table[i], ioaddr + HashTbl + i*2); - outw(0x0003, ioaddr + AddrMode); - } else { /* Normal, unicast/broadcast-only mode. */ - outw(0x0001, ioaddr + AddrMode); + + /* Restart the Rx process. */ + outw(cfg_value | 0x1000, ioaddr + Cnfg); } - /* Restart the Rx process. */ - outw(cfg_value | 0x1000, ioaddr + Cnfg); } - -#ifdef MODULE -/* An additional parameter that may be passed in... */ -static int debug = -1; - -int -init_module(void) +static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { - int cards_found; - - if (debug >= 0) - yellowfin_debug = debug; - - root_yellowfin_dev = NULL; - cards_found = yellowfin_probe(0); + struct yellowfin_private *np = (void *)dev->priv; + long ioaddr = dev->base_addr; + u16 *data = (u16 *)&rq->ifr_data; + u32 *data32 = (void *)&rq->ifr_data; + + switch(cmd) { + case 0x8947: case 0x89F0: + /* SIOCGMIIPHY: Get the address of the PHY in use. */ + data[0] = np->phys[0] & 0x1f; + /* Fall Through */ + case 0x8948: case 0x89F1: + /* SIOCGMIIREG: Read the specified MII register. */ + data[3] = mdio_read(ioaddr, data[0] & 0x1f, data[1] & 0x1f); + return 0; + case 0x8949: case 0x89F2: + /* SIOCSMIIREG: Write the specified MII register */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (data[0] == np->phys[0]) { + u16 value = data[2]; + switch (data[1]) { + case 0: + /* Check for autonegotiation on or reset. */ + np->medialock = (value & 0x9000) ? 0 : 1; + if (np->medialock) + np->full_duplex = (value & 0x0100) ? 1 : 0; + break; + case 4: np->advertising = value; break; + } + /* Perhaps check_duplex(dev), depending on chip semantics. */ + } + mdio_write(ioaddr, data[0] & 0x1f, data[1] & 0x1f, data[2]); + return 0; + case SIOCGPARAMS: + data32[0] = np->msg_level; + data32[1] = np->multicast_filter_limit; + data32[2] = np->max_interrupt_work; + data32[3] = np->rx_copybreak; + return 0; + case SIOCSPARAMS: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + np->msg_level = data32[0]; + np->multicast_filter_limit = data32[1]; + np->max_interrupt_work = data32[2]; + np->rx_copybreak = data32[3]; + return 0; + default: + return -EOPNOTSUPP; + } +} - return cards_found ? 0 : -ENODEV; + +#ifdef MODULE +int init_module(void) +{ + /* Emit version even if no cards detected. */ + printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2); + return pci_drv_register(&yellowfin_drv_id, NULL); } -void -cleanup_module(void) +void cleanup_module(void) { - struct device *next_dev; + struct net_device *next_dev; + + pci_drv_unregister(&yellowfin_drv_id); /* No need to check MOD_IN_USE, as sys_delete_module() checks. */ while (root_yellowfin_dev) { - next_dev = ((struct yellowfin_private *)root_yellowfin_dev->priv)->next_module; + struct yellowfin_private *np = (void *)(root_yellowfin_dev->priv); unregister_netdev(root_yellowfin_dev); - release_region(root_yellowfin_dev->base_addr, YELLOWFIN_TOTAL_SIZE); +#ifdef USE_IO_OPS + release_region(root_yellowfin_dev->base_addr, + pci_id_tbl[np->chip_id].io_size); +#else + iounmap((char *)root_yellowfin_dev->base_addr); +#endif + next_dev = np->next_module; + if (np->priv_addr) + kfree(np->priv_addr); kfree(root_yellowfin_dev); root_yellowfin_dev = next_dev; } @@ -1293,8 +1472,9 @@ cleanup_module(void) /* * Local variables: - * compile-command: "gcc -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c yellowfin.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`" - * SMP-compile-command: "gcc -D__SMP__ -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c yellowfin.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`" + * compile-command: "make KERNVER=`uname -r` yellowfin.o" + * compile-cmd: "gcc -DMODULE -Wall -Wstrict-prototypes -O6 -c yellowfin.c" + * simple-compile-command: "gcc -DMODULE -O6 -c yellowfin.c" * c-indent-level: 4 * c-basic-offset: 4 * tab-width: 4 |