diff options
Diffstat (limited to 'drivers/net/starfire.c')
| -rw-r--r-- | drivers/net/starfire.c | 2088 |
1 files changed, 0 insertions, 2088 deletions
diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c deleted file mode 100644 index 7ae1f99..0000000 --- a/drivers/net/starfire.c +++ /dev/null @@ -1,2088 +0,0 @@ -/* starfire.c: Linux device driver for the Adaptec Starfire network adapter. */ -/* - Written 1998-2000 by Donald Becker. - - Current maintainer is Ion Badulescu <ionut ta badula tod org>. Please - send all bug reports to me, and not to Donald Becker, as this code - has been heavily modified from Donald's original version. - - 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. - - The information below comes from Donald Becker's original driver: - - The author may be reached as becker@scyld.com, or C/O - Scyld Computing Corporation - 410 Severn Ave., Suite 210 - Annapolis MD 21403 - - Support and updates available at - http://www.scyld.com/network/starfire.html - [link no longer provides useful info -jgarzik] - -*/ - -#define DRV_NAME "starfire" -#define DRV_VERSION "2.1" -#define DRV_RELDATE "July 6, 2008" - -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/crc32.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/if_vlan.h> -#include <linux/mm.h> -#include <linux/firmware.h> -#include <asm/processor.h> /* Processor type for cache alignment. */ -#include <asm/uaccess.h> -#include <asm/io.h> - -/* - * The current frame processor firmware fails to checksum a fragment - * of length 1. If and when this is fixed, the #define below can be removed. - */ -#define HAS_BROKEN_FIRMWARE - -/* - * If using the broken firmware, data must be padded to the next 32-bit boundary. - */ -#ifdef HAS_BROKEN_FIRMWARE -#define PADDING_MASK 3 -#endif - -/* - * Define this if using the driver with the zero-copy patch - */ -#define ZEROCOPY - -#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) -#define VLAN_SUPPORT -#endif - -/* The user-configurable values. - These may be modified when a driver module is loaded.*/ - -/* Used for tuning interrupt latency vs. overhead. */ -static int intr_latency; -static int small_frames; - -static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */ -static int max_interrupt_work = 20; -static int mtu; -/* Maximum number of multicast addresses to filter (vs. rx-all-multicast). - The Starfire has a 512 element hash table based on the Ethernet CRC. */ -static const int multicast_filter_limit = 512; -/* Whether to do TCP/UDP checksums in hardware */ -static int enable_hw_cksum = 1; - -#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/ -/* - * Set the copy breakpoint for the copy-only-tiny-frames scheme. - * Setting to > 1518 effectively disables this feature. - * - * NOTE: - * The ia64 doesn't allow for unaligned loads even of integers being - * misaligned on a 2 byte boundary. Thus always force copying of - * packets as the starfire doesn't allow for misaligned DMAs ;-( - * 23/10/2000 - Jes - * - * The Alpha and the Sparc don't like unaligned loads, either. On Sparc64, - * at least, having unaligned frames leads to a rather serious performance - * penalty. -Ion - */ -#if defined(__ia64__) || defined(__alpha__) || defined(__sparc__) -static int rx_copybreak = PKT_BUF_SZ; -#else -static int rx_copybreak /* = 0 */; -#endif - -/* PCI DMA burst size -- on sparc64 we want to force it to 64 bytes, on the others the default of 128 is fine. */ -#ifdef __sparc__ -#define DMA_BURST_SIZE 64 -#else -#define DMA_BURST_SIZE 128 -#endif - -/* Used to pass the media type, etc. - Both 'options[]' and 'full_duplex[]' exist for driver interoperability. - The media type is usually passed in 'options[]'. - These variables are deprecated, use ethtool instead. -Ion -*/ -#define MAX_UNITS 8 /* More are supported, limit only on options */ -static int options[MAX_UNITS] = {0, }; -static int full_duplex[MAX_UNITS] = {0, }; - -/* Operational parameters that are set at compile time. */ - -/* The "native" ring sizes are either 256 or 2048. - However in some modes a descriptor may be marked to wrap the ring earlier. -*/ -#define RX_RING_SIZE 256 -#define TX_RING_SIZE 32 -/* The completion queues are fixed at 1024 entries i.e. 4K or 8KB. */ -#define DONE_Q_SIZE 1024 -/* All queues must be aligned on a 256-byte boundary */ -#define QUEUE_ALIGN 256 - -#if RX_RING_SIZE > 256 -#define RX_Q_ENTRIES Rx2048QEntries -#else -#define RX_Q_ENTRIES Rx256QEntries -#endif - -/* Operational parameters that usually are not changed. */ -/* Time in jiffies before concluding the transmitter is hung. */ -#define TX_TIMEOUT (2 * HZ) - -#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT -/* 64-bit dma_addr_t */ -#define ADDR_64BITS /* This chip uses 64 bit addresses. */ -#define netdrv_addr_t __le64 -#define cpu_to_dma(x) cpu_to_le64(x) -#define dma_to_cpu(x) le64_to_cpu(x) -#define RX_DESC_Q_ADDR_SIZE RxDescQAddr64bit -#define TX_DESC_Q_ADDR_SIZE TxDescQAddr64bit -#define RX_COMPL_Q_ADDR_SIZE RxComplQAddr64bit -#define TX_COMPL_Q_ADDR_SIZE TxComplQAddr64bit -#define RX_DESC_ADDR_SIZE RxDescAddr64bit -#else /* 32-bit dma_addr_t */ -#define netdrv_addr_t __le32 -#define cpu_to_dma(x) cpu_to_le32(x) -#define dma_to_cpu(x) le32_to_cpu(x) -#define RX_DESC_Q_ADDR_SIZE RxDescQAddr32bit -#define TX_DESC_Q_ADDR_SIZE TxDescQAddr32bit -#define RX_COMPL_Q_ADDR_SIZE RxComplQAddr32bit -#define TX_COMPL_Q_ADDR_SIZE TxComplQAddr32bit -#define RX_DESC_ADDR_SIZE RxDescAddr32bit -#endif - -#define skb_first_frag_len(skb) skb_headlen(skb) -#define skb_num_frags(skb) (skb_shinfo(skb)->nr_frags + 1) - -/* Firmware names */ -#define FIRMWARE_RX "adaptec/starfire_rx.bin" -#define FIRMWARE_TX "adaptec/starfire_tx.bin" - -/* These identify the driver base version and may not be removed. */ -static const char version[] __devinitconst = -KERN_INFO "starfire.c:v1.03 7/26/2000 Written by Donald Becker <becker@scyld.com>\n" -" (unofficial 2.2/2.4 kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n"; - -MODULE_AUTHOR("Donald Becker <becker@scyld.com>"); -MODULE_DESCRIPTION("Adaptec Starfire Ethernet driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_VERSION); -MODULE_FIRMWARE(FIRMWARE_RX); -MODULE_FIRMWARE(FIRMWARE_TX); - -module_param(max_interrupt_work, int, 0); -module_param(mtu, int, 0); -module_param(debug, int, 0); -module_param(rx_copybreak, int, 0); -module_param(intr_latency, int, 0); -module_param(small_frames, int, 0); -module_param_array(options, int, NULL, 0); -module_param_array(full_duplex, int, NULL, 0); -module_param(enable_hw_cksum, int, 0); -MODULE_PARM_DESC(max_interrupt_work, "Maximum events handled per interrupt"); -MODULE_PARM_DESC(mtu, "MTU (all boards)"); -MODULE_PARM_DESC(debug, "Debug level (0-6)"); -MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); -MODULE_PARM_DESC(intr_latency, "Maximum interrupt latency, in microseconds"); -MODULE_PARM_DESC(small_frames, "Maximum size of receive frames that bypass interrupt latency (0,64,128,256,512)"); -MODULE_PARM_DESC(options, "Deprecated: Bits 0-3: media type, bit 17: full duplex"); -MODULE_PARM_DESC(full_duplex, "Deprecated: Forced full-duplex setting (0/1)"); -MODULE_PARM_DESC(enable_hw_cksum, "Enable/disable hardware cksum support (0/1)"); - -/* - Theory of Operation - -I. Board Compatibility - -This driver is for the Adaptec 6915 "Starfire" 64 bit PCI Ethernet adapter. - -II. Board-specific settings - -III. Driver operation - -IIIa. Ring buffers - -The Starfire hardware uses multiple fixed-size descriptor queues/rings. The -ring sizes are set fixed by the hardware, but may optionally be wrapped -earlier by the END bit in the descriptor. -This driver uses that hardware queue size for the Rx ring, where a large -number of entries has no ill effect beyond increases the potential backlog. -The Tx ring is wrapped with the END bit, since a large hardware Tx queue -disables the queue layer priority ordering and we have no mechanism to -utilize the hardware two-level priority queue. When modifying the -RX/TX_RING_SIZE pay close attention to page sizes and the ring-empty warning -levels. - -IIIb/c. Transmit/Receive Structure - -See the Adaptec manual for the many possible structures, and options for -each structure. There are far too many to document all of them here. - -For transmit this driver uses type 0/1 transmit descriptors (depending -on the 32/64 bitness of the architecture), and relies on automatic -minimum-length padding. It does not use the completion queue -consumer index, but instead checks for non-zero status entries. - -For receive this driver uses type 2/3 receive descriptors. The driver -allocates full frame size skbuffs for the Rx ring buffers, so all frames -should fit in a single descriptor. The driver does not use the completion -queue consumer index, but instead checks for non-zero status entries. - -When an incoming frame is less than RX_COPYBREAK bytes long, a fresh skbuff -is allocated and the frame is copied to the new skbuff. When the incoming -frame is larger, the skbuff is passed directly up the protocol stack. -Buffers consumed this way are replaced by newly allocated skbuffs in a later -phase of receive. - -A notable aspect of operation is that unaligned buffers are not permitted by -the Starfire hardware. Thus the IP header at offset 14 in an ethernet frame -isn't longword aligned, which may cause problems on some machine -e.g. Alphas and IA64. For these architectures, the driver is forced to copy -the frame into a new skbuff unconditionally. Copied frames are put into the -skbuff at an offset of "+2", thus 16-byte aligning the IP header. - -IIId. 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 interrupt handling software. - -The send packet thread has partial control over the Tx ring and the netif_queue -status. If the number of free Tx slots in the ring falls below a certain number -(currently hardcoded to 4), it signals the upper layer to stop the queue. - -The interrupt handler has exclusive control over the Rx ring and records stats -from the Tx ring. After reaping the stats, it marks the Tx queue entry as -empty by incrementing the dirty_tx mark. Iff the netif_queue is stopped and the -number of free Tx slow is above the threshold, it signals the upper layer to -restart the queue. - -IV. Notes - -IVb. References - -The Adaptec Starfire manuals, available only from Adaptec. -http://www.scyld.com/expert/100mbps.html -http://www.scyld.com/expert/NWay.html - -IVc. Errata - -- StopOnPerr is broken, don't enable -- Hardware ethernet padding exposes random data, perform software padding - instead (unverified -- works correctly for all the hardware I have) - -*/ - - - -enum chip_capability_flags {CanHaveMII=1, }; - -enum chipset { - CH_6915 = 0, -}; - -static DEFINE_PCI_DEVICE_TABLE(starfire_pci_tbl) = { - { PCI_VDEVICE(ADAPTEC, 0x6915), CH_6915 }, - { 0, } -}; -MODULE_DEVICE_TABLE(pci, starfire_pci_tbl); - -/* A chip capabilities table, matching the CH_xxx entries in xxx_pci_tbl[] above. */ -static const struct chip_info { - const char *name; - int drv_flags; -} netdrv_tbl[] __devinitdata = { - { "Adaptec Starfire 6915", CanHaveMII }, -}; - - -/* Offsets to the device registers. - Unlike software-only systems, device drivers interact with complex hardware. - It's not useful to define symbolic names for every register bit in the - device. The name can only partially document the semantics and make - the driver longer and more difficult to read. - In general, only the important configuration values or bits changed - multiple times should be defined symbolically. -*/ -enum register_offsets { - PCIDeviceConfig=0x50040, GenCtrl=0x50070, IntrTimerCtrl=0x50074, - IntrClear=0x50080, IntrStatus=0x50084, IntrEnable=0x50088, - MIICtrl=0x52000, TxStationAddr=0x50120, EEPROMCtrl=0x51000, - GPIOCtrl=0x5008C, TxDescCtrl=0x50090, - TxRingPtr=0x50098, HiPriTxRingPtr=0x50094, /* Low and High priority. */ - TxRingHiAddr=0x5009C, /* 64 bit address extension. */ - TxProducerIdx=0x500A0, TxConsumerIdx=0x500A4, - TxThreshold=0x500B0, - CompletionHiAddr=0x500B4, TxCompletionAddr=0x500B8, - RxCompletionAddr=0x500BC, RxCompletionQ2Addr=0x500C0, - CompletionQConsumerIdx=0x500C4, RxDMACtrl=0x500D0, - RxDescQCtrl=0x500D4, RxDescQHiAddr=0x500DC, RxDescQAddr=0x500E0, - RxDescQIdx=0x500E8, RxDMAStatus=0x500F0, RxFilterMode=0x500F4, - TxMode=0x55000, VlanType=0x55064, - PerfFilterTable=0x56000, HashTable=0x56100, - TxGfpMem=0x58000, RxGfpMem=0x5a000, -}; - -/* - * Bits in the interrupt status/mask registers. - * Warning: setting Intr[Ab]NormalSummary in the IntrEnable register - * enables all the interrupt sources that are or'ed into those status bits. - */ -enum intr_status_bits { - IntrLinkChange=0xf0000000, IntrStatsMax=0x08000000, - IntrAbnormalSummary=0x02000000, IntrGeneralTimer=0x01000000, - IntrSoftware=0x800000, IntrRxComplQ1Low=0x400000, - IntrTxComplQLow=0x200000, IntrPCI=0x100000, - IntrDMAErr=0x080000, IntrTxDataLow=0x040000, - IntrRxComplQ2Low=0x020000, IntrRxDescQ1Low=0x010000, - IntrNormalSummary=0x8000, IntrTxDone=0x4000, - IntrTxDMADone=0x2000, IntrTxEmpty=0x1000, - IntrEarlyRxQ2=0x0800, IntrEarlyRxQ1=0x0400, - IntrRxQ2Done=0x0200, IntrRxQ1Done=0x0100, - IntrRxGFPDead=0x80, IntrRxDescQ2Low=0x40, - IntrNoTxCsum=0x20, IntrTxBadID=0x10, - IntrHiPriTxBadID=0x08, IntrRxGfp=0x04, - IntrTxGfp=0x02, IntrPCIPad=0x01, - /* not quite bits */ - IntrRxDone=IntrRxQ2Done | IntrRxQ1Done, - IntrRxEmpty=IntrRxDescQ1Low | IntrRxDescQ2Low, - IntrNormalMask=0xff00, IntrAbnormalMask=0x3ff00fe, -}; - -/* Bits in the RxFilterMode register. */ -enum rx_mode_bits { - AcceptBroadcast=0x04, AcceptAllMulticast=0x02, AcceptAll=0x01, - AcceptMulticast=0x10, PerfectFilter=0x40, HashFilter=0x30, - PerfectFilterVlan=0x80, MinVLANPrio=0xE000, VlanMode=0x0200, - WakeupOnGFP=0x0800, -}; - -/* Bits in the TxMode register */ -enum tx_mode_bits { - MiiSoftReset=0x8000, MIILoopback=0x4000, - TxFlowEnable=0x0800, RxFlowEnable=0x0400, - PadEnable=0x04, FullDuplex=0x02, HugeFrame=0x01, -}; - -/* Bits in the TxDescCtrl register. */ -enum tx_ctrl_bits { - TxDescSpaceUnlim=0x00, TxDescSpace32=0x10, TxDescSpace64=0x20, - TxDescSpace128=0x30, TxDescSpace256=0x40, - TxDescType0=0x00, TxDescType1=0x01, TxDescType2=0x02, - TxDescType3=0x03, TxDescType4=0x04, - TxNoDMACompletion=0x08, - TxDescQAddr64bit=0x80, TxDescQAddr32bit=0, - TxHiPriFIFOThreshShift=24, TxPadLenShift=16, - TxDMABurstSizeShift=8, -}; - -/* Bits in the RxDescQCtrl register. */ -enum rx_ctrl_bits { - RxBufferLenShift=16, RxMinDescrThreshShift=0, - RxPrefetchMode=0x8000, RxVariableQ=0x2000, - Rx2048QEntries=0x4000, Rx256QEntries=0, - RxDescAddr64bit=0x1000, RxDescAddr32bit=0, - RxDescQAddr64bit=0x0100, RxDescQAddr32bit=0, - RxDescSpace4=0x000, RxDescSpace8=0x100, - RxDescSpace16=0x200, RxDescSpace32=0x300, - RxDescSpace64=0x400, RxDescSpace128=0x500, - RxConsumerWrEn=0x80, -}; - -/* Bits in the RxDMACtrl register. */ -enum rx_dmactrl_bits { - RxReportBadFrames=0x80000000, RxDMAShortFrames=0x40000000, - RxDMABadFrames=0x20000000, RxDMACrcErrorFrames=0x10000000, - RxDMAControlFrame=0x08000000, RxDMAPauseFrame=0x04000000, - RxChecksumIgnore=0, RxChecksumRejectTCPUDP=0x02000000, - RxChecksumRejectTCPOnly=0x01000000, - RxCompletionQ2Enable=0x800000, - RxDMAQ2Disable=0, RxDMAQ2FPOnly=0x100000, - RxDMAQ2SmallPkt=0x200000, RxDMAQ2HighPrio=0x300000, - RxDMAQ2NonIP=0x400000, - RxUseBackupQueue=0x080000, RxDMACRC=0x040000, - RxEarlyIntThreshShift=12, RxHighPrioThreshShift=8, - RxBurstSizeShift=0, -}; - -/* Bits in the RxCompletionAddr register */ -enum rx_compl_bits { - RxComplQAddr64bit=0x80, RxComplQAddr32bit=0, - RxComplProducerWrEn=0x40, - RxComplType0=0x00, RxComplType1=0x10, - RxComplType2=0x20, RxComplType3=0x30, - RxComplThreshShift=0, -}; - -/* Bits in the TxCompletionAddr register */ -enum tx_compl_bits { - TxComplQAddr64bit=0x80, TxComplQAddr32bit=0, - TxComplProducerWrEn=0x40, - TxComplIntrStatus=0x20, - CommonQueueMode=0x10, - TxComplThreshShift=0, -}; - -/* Bits in the GenCtrl register */ -enum gen_ctrl_bits { - RxEnable=0x05, TxEnable=0x0a, - RxGFPEnable=0x10, TxGFPEnable=0x20, -}; - -/* Bits in the IntrTimerCtrl register */ -enum intr_ctrl_bits { - Timer10X=0x800, EnableIntrMasking=0x60, SmallFrameBypass=0x100, - SmallFrame64=0, SmallFrame128=0x200, SmallFrame256=0x400, SmallFrame512=0x600, - IntrLatencyMask=0x1f, -}; - -/* The Rx and Tx buffer descriptors. */ -struct starfire_rx_desc { - netdrv_addr_t rxaddr; -}; -enum rx_desc_bits { - RxDescValid=1, RxDescEndRing=2, -}; - -/* Completion queue entry. */ -struct short_rx_done_desc { - __le32 status; /* Low 16 bits is length. */ -}; -struct basic_rx_done_desc { - __le32 status; /* Low 16 bits is length. */ - __le16 vlanid; - __le16 status2; -}; -struct csum_rx_done_desc { - __le32 status; /* Low 16 bits is length. */ - __le16 csum; /* Partial checksum */ - __le16 status2; -}; -struct full_rx_done_desc { - __le32 status; /* Low 16 bits is length. */ - __le16 status3; - __le16 status2; - __le16 vlanid; - __le16 csum; /* partial checksum */ - __le32 timestamp; -}; -/* XXX: this is ugly and I'm not sure it's worth the trouble -Ion */ -#ifdef VLAN_SUPPORT -typedef struct full_rx_done_desc rx_done_desc; -#define RxComplType RxComplType3 -#else /* not VLAN_SUPPORT */ -typedef struct csum_rx_done_desc rx_done_desc; -#define RxComplType RxComplType2 -#endif /* not VLAN_SUPPORT */ - -enum rx_done_bits { - RxOK=0x20000000, RxFIFOErr=0x10000000, RxBufQ2=0x08000000, -}; - -/* Type 1 Tx descriptor. */ -struct starfire_tx_desc_1 { - __le32 status; /* Upper bits are status, lower 16 length. */ - __le32 addr; -}; - -/* Type 2 Tx descriptor. */ -struct starfire_tx_desc_2 { - __le32 status; /* Upper bits are status, lower 16 length. */ - __le32 reserved; - __le64 addr; -}; - -#ifdef ADDR_64BITS -typedef struct starfire_tx_desc_2 starfire_tx_desc; -#define TX_DESC_TYPE TxDescType2 -#else /* not ADDR_64BITS */ -typedef struct starfire_tx_desc_1 starfire_tx_desc; -#define TX_DESC_TYPE TxDescType1 -#endif /* not ADDR_64BITS */ -#define TX_DESC_SPACING TxDescSpaceUnlim - -enum tx_desc_bits { - TxDescID=0xB0000000, - TxCRCEn=0x01000000, TxDescIntr=0x08000000, - TxRingWrap=0x04000000, TxCalTCP=0x02000000, -}; -struct tx_done_desc { - __le32 status; /* timestamp, index. */ -#if 0 - __le32 intrstatus; /* interrupt status */ -#endif -}; - -struct rx_ring_info { - struct sk_buff *skb; - dma_addr_t mapping; -}; -struct tx_ring_info { - struct sk_buff *skb; - dma_addr_t mapping; - unsigned int used_slots; -}; - -#define PHY_CNT 2 -struct netdev_private { - /* Descriptor rings first for alignment. */ - struct starfire_rx_desc *rx_ring; - starfire_tx_desc *tx_ring; - dma_addr_t rx_ring_dma; - dma_addr_t tx_ring_dma; - /* The addresses of rx/tx-in-place skbuffs. */ - struct rx_ring_info rx_info[RX_RING_SIZE]; - struct tx_ring_info tx_info[TX_RING_SIZE]; - /* Pointers to completion queues (full pages). */ - rx_done_desc *rx_done_q; - dma_addr_t rx_done_q_dma; - unsigned int rx_done; - struct tx_done_desc *tx_done_q; - dma_addr_t tx_done_q_dma; - unsigned int tx_done; - struct napi_struct napi; - struct net_device *dev; - struct pci_dev *pci_dev; -#ifdef VLAN_SUPPORT - unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; -#endif - void *queue_mem; - dma_addr_t queue_mem_dma; - size_t queue_mem_size; - - /* Frequently used values: keep some adjacent for cache effect. */ - spinlock_t lock; - unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */ - unsigned int cur_tx, dirty_tx, reap_tx; - unsigned int rx_buf_sz; /* Based on MTU+slack. */ - /* These values keep track of the transceiver/media in use. */ - int speed100; /* Set if speed == 100MBit. */ - u32 tx_mode; - u32 intr_timer_ctrl; - u8 tx_threshold; - /* MII transceiver section. */ - struct mii_if_info mii_if; /* MII lib hooks/info */ - int phy_cnt; /* MII device addresses. */ - unsigned char phys[PHY_CNT]; /* MII device addresses. */ - void __iomem *base; -}; - - -static int mdio_read(struct net_device *dev, int phy_id, int location); -static void mdio_write(struct net_device *dev, int phy_id, int location, int value); -static int netdev_open(struct net_device *dev); -static void check_duplex(struct net_device *dev); -static void tx_timeout(struct net_device *dev); -static void init_ring(struct net_device *dev); -static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev); -static irqreturn_t intr_handler(int irq, void *dev_instance); -static void netdev_error(struct net_device *dev, int intr_status); -static int __netdev_rx(struct net_device *dev, int *quota); -static int netdev_poll(struct napi_struct *napi, int budget); -static void refill_rx_ring(struct net_device *dev); -static void netdev_error(struct net_device *dev, int intr_status); -static void set_rx_mode(struct net_device *dev); -static struct net_device_stats *get_stats(struct net_device *dev); -static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); -static int netdev_close(struct net_device *dev); -static void netdev_media_change(struct net_device *dev); -static const struct ethtool_ops ethtool_ops; - - -#ifdef VLAN_SUPPORT -static void netdev_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) -{ - struct netdev_private *np = netdev_priv(dev); - - spin_lock(&np->lock); - if (debug > 1) - printk("%s: Adding vlanid %d to vlan filter\n", dev->name, vid); - set_bit(vid, np->active_vlans); - set_rx_mode(dev); - spin_unlock(&np->lock); -} - -static void netdev_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) -{ - struct netdev_private *np = netdev_priv(dev); - - spin_lock(&np->lock); - if (debug > 1) - printk("%s: removing vlanid %d from vlan filter\n", dev->name, vid); - clear_bit(vid, np->active_vlans); - set_rx_mode(dev); - spin_unlock(&np->lock); -} -#endif /* VLAN_SUPPORT */ - - -static const struct net_device_ops netdev_ops = { - .ndo_open = netdev_open, - .ndo_stop = netdev_close, - .ndo_start_xmit = start_tx, - .ndo_tx_timeout = tx_timeout, - .ndo_get_stats = get_stats, - .ndo_set_multicast_list = &set_rx_mode, - .ndo_do_ioctl = netdev_ioctl, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -#ifdef VLAN_SUPPORT - .ndo_vlan_rx_add_vid = netdev_vlan_rx_add_vid, - .ndo_vlan_rx_kill_vid = netdev_vlan_rx_kill_vid, -#endif -}; - -static int __devinit starfire_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct netdev_private *np; - int i, irq, option, chip_idx = ent->driver_data; - struct net_device *dev; - static int card_idx = -1; - long ioaddr; - void __iomem *base; - int drv_flags, io_size; - int boguscnt; - -/* when built into the kernel, we only print version if device is found */ -#ifndef MODULE - static int printed_version; - if (!printed_version++) - printk(version); -#endif - - card_idx++; - - if (pci_enable_device (pdev)) - return -EIO; - - ioaddr = pci_resource_start(pdev, 0); - io_size = pci_resource_len(pdev, 0); - if (!ioaddr || ((pci_resource_flags(pdev, 0) & IORESOURCE_MEM) == 0)) { - printk(KERN_ERR DRV_NAME " %d: no PCI MEM resources, aborting\n", card_idx); - return -ENODEV; - } - - dev = alloc_etherdev(sizeof(*np)); - if (!dev) { - printk(KERN_ERR DRV_NAME " %d: cannot alloc etherdev, aborting\n", card_idx); - return -ENOMEM; - } - SET_NETDEV_DEV(dev, &pdev->dev); - - irq = pdev->irq; - - if (pci_request_regions (pdev, DRV_NAME)) { - printk(KERN_ERR DRV_NAME " %d: cannot reserve PCI resources, aborting\n", card_idx); - goto err_out_free_netdev; - } - - base = ioremap(ioaddr, io_size); - if (!base) { - printk(KERN_ERR DRV_NAME " %d: cannot remap %#x @ %#lx, aborting\n", - card_idx, io_size, ioaddr); - goto err_out_free_res; - } - - pci_set_master(pdev); - - /* enable MWI -- it vastly improves Rx performance on sparc64 */ - pci_try_set_mwi(pdev); - -#ifdef ZEROCOPY - /* Starfire can do TCP/UDP checksumming */ - if (enable_hw_cksum) - dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; -#endif /* ZEROCOPY */ - -#ifdef VLAN_SUPPORT - dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; -#endif /* VLAN_RX_KILL_VID */ -#ifdef ADDR_64BITS - dev->features |= NETIF_F_HIGHDMA; -#endif /* ADDR_64BITS */ - - /* Serial EEPROM reads are hidden by the hardware. */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = readb(base + EEPROMCtrl + 20 - i); - -#if ! defined(final_version) /* Dump the EEPROM contents during development. */ - if (debug > 4) - for (i = 0; i < 0x20; i++) - printk("%2.2x%s", - (unsigned int)readb(base + EEPROMCtrl + i), - i % 16 != 15 ? " " : "\n"); -#endif - - /* Issue soft reset */ - writel(MiiSoftReset, base + TxMode); - udelay(1000); - writel(0, base + TxMode); - - /* Reset the chip to erase previous misconfiguration. */ - writel(1, base + PCIDeviceConfig); - boguscnt = 1000; - while (--boguscnt > 0) { - udelay(10); - if ((readl(base + PCIDeviceConfig) & 1) == 0) - break; - } - if (boguscnt == 0) - printk("%s: chipset reset never completed!\n", dev->name); - /* wait a little longer */ - udelay(1000); - - dev->base_addr = (unsigned long)base; - dev->irq = irq; - - np = netdev_priv(dev); - np->dev = dev; - np->base = base; - spin_lock_init(&np->lock); - pci_set_drvdata(pdev, dev); - - np->pci_dev = pdev; - - np->mii_if.dev = dev; - np->mii_if.mdio_read = mdio_read; - np->mii_if.mdio_write = mdio_write; - np->mii_if.phy_id_mask = 0x1f; - np->mii_if.reg_num_mask = 0x1f; - - drv_flags = netdrv_tbl[chip_idx].drv_flags; - - option = card_idx < MAX_UNITS ? options[card_idx] : 0; - if (dev->mem_start) - option = dev->mem_start; - - /* The lower four bits are the media type. */ - if (option & 0x200) - np->mii_if.full_duplex = 1; - - if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0) - np->mii_if.full_duplex = 1; - - if (np->mii_if.full_duplex) - np->mii_if.force_media = 1; - else - np->mii_if.force_media = 0; - np->speed100 = 1; - - /* timer resolution is 128 * 0.8us */ - np->intr_timer_ctrl = (((intr_latency * 10) / 1024) & IntrLatencyMask) | - Timer10X | EnableIntrMasking; - - if (small_frames > 0) { - np->intr_timer_ctrl |= SmallFrameBypass; - switch (small_frames) { - case 1 ... 64: - np->intr_timer_ctrl |= SmallFrame64; - break; - case 65 ... 128: - np->intr_timer_ctrl |= SmallFrame128; - break; - case 129 ... 256: - np->intr_timer_ctrl |= SmallFrame256; - break; - default: - np->intr_timer_ctrl |= SmallFrame512; - if (small_frames > 512) - printk("Adjusting small_frames down to 512\n"); - break; - } - } - - dev->netdev_ops = &netdev_ops; - dev->watchdog_timeo = TX_TIMEOUT; - SET_ETHTOOL_OPS(dev, ðtool_ops); - - netif_napi_add(dev, &np->napi, netdev_poll, max_interrupt_work); - - if (mtu) - dev->mtu = mtu; - - if (register_netdev(dev)) - goto err_out_cleardev; - - printk(KERN_INFO "%s: %s at %p, %pM, IRQ %d.\n", - dev->name, netdrv_tbl[chip_idx].name, base, - dev->dev_addr, irq); - - if (drv_flags & CanHaveMII) { - int phy, phy_idx = 0; - int mii_status; - for (phy = 0; phy < 32 && phy_idx < PHY_CNT; phy++) { - mdio_write(dev, phy, MII_BMCR, BMCR_RESET); - mdelay(100); - boguscnt = 1000; - while (--boguscnt > 0) - if ((mdio_read(dev, phy, MII_BMCR) & BMCR_RESET) == 0) - break; - if (boguscnt == 0) { - printk("%s: PHY#%d reset never completed!\n", dev->name, phy); - continue; - } - mii_status = mdio_read(dev, phy, MII_BMSR); - if (mii_status != 0) { - np->phys[phy_idx++] = phy; - np->mii_if.advertising = mdio_read(dev, phy, MII_ADVERTISE); - printk(KERN_INFO "%s: MII PHY found at address %d, status " - "%#4.4x advertising %#4.4x.\n", - dev->name, phy, mii_status, np->mii_if.advertising); - /* there can be only one PHY on-board */ - break; - } - } - np->phy_cnt = phy_idx; - if (np->phy_cnt > 0) - np->mii_if.phy_id = np->phys[0]; - else - memset(&np->mii_if, 0, sizeof(np->mii_if)); - } - - printk(KERN_INFO "%s: scatter-gather and hardware TCP cksumming %s.\n", - dev->name, enable_hw_cksum ? "enabled" : "disabled"); - return 0; - -err_out_cleardev: - pci_set_drvdata(pdev, NULL); - iounmap(base); -err_out_free_res: - pci_release_regions (pdev); -err_out_free_netdev: - free_netdev(dev); - return -ENODEV; -} - - -/* Read the MII Management Data I/O (MDIO) interfaces. */ -static int mdio_read(struct net_device *dev, int phy_id, int location) -{ - struct netdev_private *np = netdev_priv(dev); - void __iomem *mdio_addr = np->base + MIICtrl + (phy_id<<7) + (location<<2); - int result, boguscnt=1000; - /* ??? Should we add a busy-wait here? */ - do { - result = readl(mdio_addr); - } while ((result & 0xC0000000) != 0x80000000 && --boguscnt > 0); - if (boguscnt == 0) - return 0; - if ((result & 0xffff) == 0xffff) - return 0; - return result & 0xffff; -} - - -static void mdio_write(struct net_device *dev, int phy_id, int location, int value) -{ - struct netdev_private *np = netdev_priv(dev); - void __iomem *mdio_addr = np->base + MIICtrl + (phy_id<<7) + (location<<2); - writel(value, mdio_addr); - /* The busy-wait will occur before a read. */ -} - - -static int netdev_open(struct net_device *dev) -{ - const struct firmware *fw_rx, *fw_tx; - const __be32 *fw_rx_data, *fw_tx_data; - struct netdev_private *np = netdev_priv(dev); - void __iomem *ioaddr = np->base; - int i, retval; - size_t tx_size, rx_size; - size_t tx_done_q_size, rx_done_q_size, tx_ring_size, rx_ring_size; - - /* Do we ever need to reset the chip??? */ - - retval = request_irq(dev->irq, intr_handler, IRQF_SHARED, dev->name, dev); - if (retval) - return retval; - - /* Disable the Rx and Tx, and reset the chip. */ - writel(0, ioaddr + GenCtrl); - writel(1, ioaddr + PCIDeviceConfig); - if (debug > 1) - printk(KERN_DEBUG "%s: netdev_open() irq %d.\n", - dev->name, dev->irq); - - /* Allocate the various queues. */ - if (!np->queue_mem) { - tx_done_q_size = ((sizeof(struct tx_done_desc) * DONE_Q_SIZE + QUEUE_ALIGN - 1) / QUEUE_ALIGN) * QUEUE_ALIGN; - rx_done_q_size = ((sizeof(rx_done_desc) * DONE_Q_SIZE + QUEUE_ALIGN - 1) / QUEUE_ALIGN) * QUEUE_ALIGN; - tx_ring_size = ((sizeof(starfire_tx_desc) * TX_RING_SIZE + QUEUE_ALIGN - 1) / QUEUE_ALIGN) * QUEUE_ALIGN; - rx_ring_size = sizeof(struct starfire_rx_desc) * RX_RING_SIZE; - np->queue_mem_size = tx_done_q_size + rx_done_q_size + tx_ring_size + rx_ring_size; - np->queue_mem = pci_alloc_consistent(np->pci_dev, np->queue_mem_size, &np->queue_mem_dma); - if (np->queue_mem == NULL) { - free_irq(dev->irq, dev); - return -ENOMEM; - } - - np->tx_done_q = np->queue_mem; - np->tx_done_q_dma = np->queue_mem_dma; - np->rx_done_q = (void *) np->tx_done_q + tx_done_q_size; - np->rx_done_q_dma = np->tx_done_q_dma + tx_done_q_size; - np->tx_ring = (void *) np->rx_done_q + rx_done_q_size; - np->tx_ring_dma = np->rx_done_q_dma + rx_done_q_size; - np->rx_ring = (void *) np->tx_ring + tx_ring_size; - np->rx_ring_dma = np->tx_ring_dma + tx_ring_size; - } - - /* Start with no carrier, it gets adjusted later */ - netif_carrier_off(dev); - init_ring(dev); - /* Set the size of the Rx buffers. */ - writel((np->rx_buf_sz << RxBufferLenShift) | - (0 << RxMinDescrThreshShift) | - RxPrefetchMode | RxVariableQ | - RX_Q_ENTRIES | - RX_DESC_Q_ADDR_SIZE | RX_DESC_ADDR_SIZE | - RxDescSpace4, - ioaddr + RxDescQCtrl); - - /* Set up the Rx DMA controller. */ - writel(RxChecksumIgnore | - (0 << RxEarlyIntThreshShift) | - (6 << RxHighPrioThreshShift) | - ((DMA_BURST_SIZE / 32) << RxBurstSizeShift), - ioaddr + RxDMACtrl); - - /* Set Tx descriptor */ - writel((2 << TxHiPriFIFOThreshShift) | - (0 << TxPadLenShift) | - ((DMA_BURST_SIZE / 32) << TxDMABurstSizeShift) | - TX_DESC_Q_ADDR_SIZE | - TX_DESC_SPACING | TX_DESC_TYPE, - ioaddr + TxDescCtrl); - - writel( (np->queue_mem_dma >> 16) >> 16, ioaddr + RxDescQHiAddr); - writel( (np->queue_mem_dma >> 16) >> 16, ioaddr + TxRingHiAddr); - writel( (np->queue_mem_dma >> 16) >> 16, ioaddr + CompletionHiAddr); - writel(np->rx_ring_dma, ioaddr + RxDescQAddr); - writel(np->tx_ring_dma, ioaddr + TxRingPtr); - - writel(np->tx_done_q_dma, ioaddr + TxCompletionAddr); - writel(np->rx_done_q_dma | - RxComplType | - (0 << RxComplThreshShift), - ioaddr + RxCompletionAddr); - - if (debug > 1) - printk(KERN_DEBUG "%s: Filling in the station address.\n", dev->name); - - /* Fill both the Tx SA register and the Rx perfect filter. */ - for (i = 0; i < 6; i++) - writeb(dev->dev_addr[i], ioaddr + TxStationAddr + 5 - i); - /* The first entry is special because it bypasses the VLAN filter. - Don't use it. */ - writew(0, ioaddr + PerfFilterTable); - writew(0, ioaddr + PerfFilterTable + 4); - writew(0, ioaddr + PerfFilterTable + 8); - for (i = 1; i < 16; i++) { - __be16 *eaddrs = (__be16 *)dev->dev_addr; - void __iomem *setup_frm = ioaddr + PerfFilterTable + i * 16; - writew(be16_to_cpu(eaddrs[2]), setup_frm); setup_frm += 4; - writew(be16_to_cpu(eaddrs[1]), setup_frm); setup_frm += 4; - writew(be16_to_cpu(eaddrs[0]), setup_frm); setup_frm += 8; - } - - /* Initialize other registers. */ - /* Configure the PCI bus bursts and FIFO thresholds. */ - np->tx_mode = TxFlowEnable|RxFlowEnable|PadEnable; /* modified when link is up. */ - writel(MiiSoftReset | np->tx_mode, ioaddr + TxMode); - udelay(1000); - writel(np->tx_mode, ioaddr + TxMode); - np->tx_threshold = 4; - writel(np->tx_threshold, ioaddr + TxThreshold); - - writel(np->intr_timer_ctrl, ioaddr + IntrTimerCtrl); - - napi_enable(&np->napi); - - netif_start_queue(dev); - - if (debug > 1) - printk(KERN_DEBUG "%s: Setting the Rx and Tx modes.\n", dev->name); - set_rx_mode(dev); - - np->mii_if.advertising = mdio_read(dev, np->phys[0], MII_ADVERTISE); - check_duplex(dev); - - /* Enable GPIO interrupts on link change */ - writel(0x0f00ff00, ioaddr + GPIOCtrl); - - /* Set the interrupt mask */ - writel(IntrRxDone | IntrRxEmpty | IntrDMAErr | - IntrTxDMADone | IntrStatsMax | IntrLinkChange | - IntrRxGFPDead | IntrNoTxCsum | IntrTxBadID, - ioaddr + IntrEnable); - /* Enable PCI interrupts. */ - writel(0x00800000 | readl(ioaddr + PCIDeviceConfig), - ioaddr + PCIDeviceConfig); - -#ifdef VLAN_SUPPORT - /* Set VLAN type to 802.1q */ - writel(ETH_P_8021Q, ioaddr + VlanType); -#endif /* VLAN_SUPPORT */ - - retval = request_firmware(&fw_rx, FIRMWARE_RX, &np->pci_dev->dev); - if (retval) { - printk(KERN_ERR "starfire: Failed to load firmware \"%s\"\n", - FIRMWARE_RX); - goto out_init; - } - if (fw_rx->size % 4) { - printk(KERN_ERR "starfire: bogus length %zu in \"%s\"\n", - fw_rx->size, FIRMWARE_RX); - retval = -EINVAL; - goto out_rx; - } - retval = request_firmware(&fw_tx, FIRMWARE_TX, &np->pci_dev->dev); - if (retval) { - printk(KERN_ERR "starfire: Failed to load firmware \"%s\"\n", - FIRMWARE_TX); - goto out_rx; - } - if (fw_tx->size % 4) { - printk(KERN_ERR "starfire: bogus length %zu in \"%s\"\n", - fw_tx->size, FIRMWARE_TX); - retval = -EINVAL; - goto out_tx; - } - fw_rx_data = (const __be32 *)&fw_rx->data[0]; - fw_tx_data = (const __be32 *)&fw_tx->data[0]; - rx_size = fw_rx->size / 4; - tx_size = fw_tx->size / 4; - - /* Load Rx/Tx firmware into the frame processors */ - for (i = 0; i < rx_size; i++) - writel(be32_to_cpup(&fw_rx_data[i]), ioaddr + RxGfpMem + i * 4); - for (i = 0; i < tx_size; i++) - writel(be32_to_cpup(&fw_tx_data[i]), ioaddr + TxGfpMem + i * 4); - if (enable_hw_cksum) - /* Enable the Rx and Tx units, and the Rx/Tx frame processors. */ - writel(TxEnable|TxGFPEnable|RxEnable|RxGFPEnable, ioaddr + GenCtrl); - else - /* Enable the Rx and Tx units only. */ - writel(TxEnable|RxEnable, ioaddr + GenCtrl); - - if (debug > 1) - printk(KERN_DEBUG "%s: Done netdev_open().\n", - dev->name); - -out_tx: - release_firmware(fw_tx); -out_rx: - release_firmware(fw_rx); -out_init: - if (retval) - netdev_close(dev); - return retval; -} - - -static void check_duplex(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - u16 reg0; - int silly_count = 1000; - - mdio_write(dev, np->phys[0], MII_ADVERTISE, np->mii_if.advertising); - mdio_write(dev, np->phys[0], MII_BMCR, BMCR_RESET); - udelay(500); - while (--silly_count && mdio_read(dev, np->phys[0], MII_BMCR) & BMCR_RESET) - /* do nothing */; - if (!silly_count) { - printk("%s: MII reset failed!\n", dev->name); - return; - } - - reg0 = mdio_read(dev, np->phys[0], MII_BMCR); - - if (!np->mii_if.force_media) { - reg0 |= BMCR_ANENABLE | BMCR_ANRESTART; - } else { - reg0 &= ~(BMCR_ANENABLE | BMCR_ANRESTART); - if (np->speed100) - reg0 |= BMCR_SPEED100; - if (np->mii_if.full_duplex) - reg0 |= BMCR_FULLDPLX; - printk(KERN_DEBUG "%s: Link forced to %sMbit %s-duplex\n", - dev->name, - np->speed100 ? "100" : "10", - np->mii_if.full_duplex ? "full" : "half"); - } - mdio_write(dev, np->phys[0], MII_BMCR, reg0); -} - - -static void tx_timeout(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - void __iomem *ioaddr = np->base; - int old_debug; - - printk(KERN_WARNING "%s: Transmit timed out, status %#8.8x, " - "resetting...\n", dev->name, (int) readl(ioaddr + IntrStatus)); - - /* Perhaps we should reinitialize the hardware here. */ - - /* - * Stop and restart the interface. - * Cheat and increase the debug level temporarily. - */ - old_debug = debug; - debug = 2; - netdev_close(dev); - netdev_open(dev); - debug = old_debug; - - /* Trigger an immediate transmit demand. */ - - dev->trans_start = jiffies; /* prevent tx timeout */ - dev->stats.tx_errors++; - netif_wake_queue(dev); -} - - -/* Initialize the Rx and Tx rings, along with various 'dev' bits. */ -static void init_ring(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - int i; - - np->cur_rx = np->cur_tx = np->reap_tx = 0; - np->dirty_rx = np->dirty_tx = np->rx_done = np->tx_done = 0; - - np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32); - - /* Fill in the Rx buffers. Handle allocation failure gracefully. */ - for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz); - np->rx_info[i].skb = skb; - if (skb == NULL) - break; - np->rx_info[i].mapping = pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz, PCI_DMA_FROMDEVICE); - skb->dev = dev; /* Mark as being used by this device. */ - /* Grrr, we cannot offset to correctly align the IP header. */ - np->rx_ring[i].rxaddr = cpu_to_dma(np->rx_info[i].mapping | RxDescValid); - } - writew(i - 1, np->base + RxDescQIdx); - np->dirty_rx = (unsigned int)(i - RX_RING_SIZE); - - /* Clear the remainder of the Rx buffer ring. */ - for ( ; i < RX_RING_SIZE; i++) { - np->rx_ring[i].rxaddr = 0; - np->rx_info[i].skb = NULL; - np->rx_info[i].mapping = 0; - } - /* Mark the last entry as wrapping the ring. */ - np->rx_ring[RX_RING_SIZE - 1].rxaddr |= cpu_to_dma(RxDescEndRing); - - /* Clear the completion rings. */ - for (i = 0; i < DONE_Q_SIZE; i++) { - np->rx_done_q[i].status = 0; - np->tx_done_q[i].status = 0; - } - - for (i = 0; i < TX_RING_SIZE; i++) - memset(&np->tx_info[i], 0, sizeof(np->tx_info[i])); -} - - -static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - unsigned int entry; - u32 status; - int i; - - /* - * be cautious here, wrapping the queue has weird semantics - * and we may not have enough slots even when it seems we do. - */ - if ((np->cur_tx - np->dirty_tx) + skb_num_frags(skb) * 2 > TX_RING_SIZE) { - netif_stop_queue(dev); - return NETDEV_TX_BUSY; - } - -#if defined(ZEROCOPY) && defined(HAS_BROKEN_FIRMWARE) - if (skb->ip_summed == CHECKSUM_PARTIAL) { - if (skb_padto(skb, (skb->len + PADDING_MASK) & ~PADDING_MASK)) - return NETDEV_TX_OK; - } -#endif /* ZEROCOPY && HAS_BROKEN_FIRMWARE */ - - entry = np->cur_tx % TX_RING_SIZE; - for (i = 0; i < skb_num_frags(skb); i++) { - int wrap_ring = 0; - status = TxDescID; - - if (i == 0) { - np->tx_info[entry].skb = skb; - status |= TxCRCEn; - if (entry >= TX_RING_SIZE - skb_num_frags(skb)) { - status |= TxRingWrap; - wrap_ring = 1; - } - if (np->reap_tx) { - status |= TxDescIntr; - np->reap_tx = 0; - } - if (skb->ip_summed == CHECKSUM_PARTIAL) { - status |= TxCalTCP; - dev->stats.tx_compressed++; - } - status |= skb_first_frag_len(skb) | (skb_num_frags(skb) << 16); - - np->tx_info[entry].mapping = - pci_map_single(np->pci_dev, skb->data, skb_first_frag_len(skb), PCI_DMA_TODEVICE); - } else { - skb_frag_t *this_frag = &skb_shinfo(skb)->frags[i - 1]; - status |= this_frag->size; - np->tx_info[entry].mapping = - pci_map_single(np->pci_dev, page_address(this_frag->page) + this_frag->page_offset, this_frag->size, PCI_DMA_TODEVICE); - } - - np->tx_ring[entry].addr = cpu_to_dma(np->tx_info[entry].mapping); - np->tx_ring[entry].status = cpu_to_le32(status); - if (debug > 3) - printk(KERN_DEBUG "%s: Tx #%d/#%d slot %d status %#8.8x.\n", - dev->name, np->cur_tx, np->dirty_tx, - entry, status); - if (wrap_ring) { - np->tx_info[entry].used_slots = TX_RING_SIZE - entry; - np->cur_tx += np->tx_info[entry].used_slots; - entry = 0; - } else { - np->tx_info[entry].used_slots = 1; - np->cur_tx += np->tx_info[entry].used_slots; - entry++; - } - /* scavenge the tx descriptors twice per TX_RING_SIZE */ - if (np->cur_tx % (TX_RING_SIZE / 2) == 0) - np->reap_tx = 1; - } - - /* Non-x86: explicitly flush descriptor cache lines here. */ - /* Ensure all descriptors are written back before the transmit is - initiated. - Jes */ - wmb(); - - /* Update the producer index. */ - writel(entry * (sizeof(starfire_tx_desc) / 8), np->base + TxProducerIdx); - - /* 4 is arbitrary, but should be ok */ - if ((np->cur_tx - np->dirty_tx) + 4 > TX_RING_SIZE) - netif_stop_queue(dev); - - return NETDEV_TX_OK; -} - - -/* The interrupt handler does all of the Rx thread work and cleans up - after the Tx thread. */ -static irqreturn_t intr_handler(int irq, void *dev_instance) -{ - struct net_device *dev = dev_instance; - struct netdev_private *np = netdev_priv(dev); - void __iomem *ioaddr = np->base; - int boguscnt = max_interrupt_work; - int consumer; - int tx_status; - int handled = 0; - - do { - u32 intr_status = readl(ioaddr + IntrClear); - - if (debug > 4) - printk(KERN_DEBUG "%s: Interrupt status %#8.8x.\n", - dev->name, intr_status); - - if (intr_status == 0 || intr_status == (u32) -1) - break; - - handled = 1; - - if (intr_status & (IntrRxDone | IntrRxEmpty)) { - u32 enable; - - if (likely(napi_schedule_prep(&np->napi))) { - __napi_schedule(&np->napi); - enable = readl(ioaddr + IntrEnable); - enable &= ~(IntrRxDone | IntrRxEmpty); - writel(enable, ioaddr + IntrEnable); - /* flush PCI posting buffers */ - readl(ioaddr + IntrEnable); - } else { - /* Paranoia check */ - enable = readl(ioaddr + IntrEnable); - if (enable & (IntrRxDone | IntrRxEmpty)) { - printk(KERN_INFO - "%s: interrupt while in poll!\n", - dev->name); - enable &= ~(IntrRxDone | IntrRxEmpty); - writel(enable, ioaddr + IntrEnable); - } - } - } - - /* Scavenge the skbuff list based on the Tx-done queue. - There are redundant checks here that may be cleaned up - after the driver has proven to be reliable. */ - consumer = readl(ioaddr + TxConsumerIdx); - if (debug > 3) - printk(KERN_DEBUG "%s: Tx Consumer index is %d.\n", - dev->name, consumer); - - while ((tx_status = le32_to_cpu(np->tx_done_q[np->tx_done].status)) != 0) { - if (debug > 3) - printk(KERN_DEBUG "%s: Tx completion #%d entry %d is %#8.8x.\n", - dev->name, np->dirty_tx, np->tx_done, tx_status); - if ((tx_status & 0xe0000000) == 0xa0000000) { - dev->stats.tx_packets++; - } else if ((tx_status & 0xe0000000) == 0x80000000) { - u16 entry = (tx_status & 0x7fff) / sizeof(starfire_tx_desc); - struct sk_buff *skb = np->tx_info[entry].skb; - np->tx_info[entry].skb = NULL; - pci_unmap_single(np->pci_dev, - np->tx_info[entry].mapping, - skb_first_frag_len(skb), - PCI_DMA_TODEVICE); - np->tx_info[entry].mapping = 0; - np->dirty_tx += np->tx_info[entry].used_slots; - entry = (entry + np->tx_info[entry].used_slots) % TX_RING_SIZE; - { - int i; - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - pci_unmap_single(np->pci_dev, - np->tx_info[entry].mapping, - skb_shinfo(skb)->frags[i].size, - PCI_DMA_TODEVICE); - np->dirty_tx++; - entry++; - } - } - - dev_kfree_skb_irq(skb); - } - np->tx_done_q[np->tx_done].status = 0; - np->tx_done = (np->tx_done + 1) % DONE_Q_SIZE; - } - writew(np->tx_done, ioaddr + CompletionQConsumerIdx + 2); - - if (netif_queue_stopped(dev) && - (np->cur_tx - np->dirty_tx + 4 < TX_RING_SIZE)) { - /* The ring is no longer full, wake the queue. */ - netif_wake_queue(dev); - } - - /* Stats overflow */ - if (intr_status & IntrStatsMax) - get_stats(dev); - - /* Media change interrupt. */ - if (intr_status & IntrLinkChange) - netdev_media_change(dev); - - /* Abnormal error summary/uncommon events handlers. */ - if (intr_status & IntrAbnormalSummary) - netdev_error(dev, intr_status); - - if (--boguscnt < 0) { - if (debug > 1) - printk(KERN_WARNING "%s: Too much work at interrupt, " - "status=%#8.8x.\n", - dev->name, intr_status); - break; - } - } while (1); - - if (debug > 4) - printk(KERN_DEBUG "%s: exiting interrupt, status=%#8.8x.\n", - dev->name, (int) readl(ioaddr + IntrStatus)); - return IRQ_RETVAL(handled); -} - - -/* - * This routine is logically part of the interrupt/poll handler, but separated - * for clarity and better register allocation. - */ -static int __netdev_rx(struct net_device *dev, int *quota) -{ - struct netdev_private *np = netdev_priv(dev); - u32 desc_status; - int retcode = 0; - - /* If EOP is set on the next entry, it's a new packet. Send it up. */ - while ((desc_status = le32_to_cpu(np->rx_done_q[np->rx_done].status)) != 0) { - struct sk_buff *skb; - u16 pkt_len; - int entry; - rx_done_desc *desc = &np->rx_done_q[np->rx_done]; - - if (debug > 4) - printk(KERN_DEBUG " netdev_rx() status of %d was %#8.8x.\n", np->rx_done, desc_status); - if (!(desc_status & RxOK)) { - /* There was an error. */ - if (debug > 2) - printk(KERN_DEBUG " netdev_rx() Rx error was %#8.8x.\n", desc_status); - dev->stats.rx_errors++; - if (desc_status & RxFIFOErr) - dev->stats.rx_fifo_errors++; - goto next_rx; - } - - if (*quota <= 0) { /* out of rx quota */ - retcode = 1; - goto out; - } - (*quota)--; - - pkt_len = desc_status; /* Implicitly Truncate */ - entry = (desc_status >> 16) & 0x7ff; - - if (debug > 4) - printk(KERN_DEBUG " netdev_rx() normal Rx pkt length %d, quota %d.\n", pkt_len, *quota); - /* Check if the packet is long enough to accept without copying - to a minimally-sized skbuff. */ - if (pkt_len < rx_copybreak && - (skb = dev_alloc_skb(pkt_len + 2)) != NULL) { - skb_reserve(skb, 2); /* 16 byte align the IP header */ - pci_dma_sync_single_for_cpu(np->pci_dev, - np->rx_info[entry].mapping, - pkt_len, PCI_DMA_FROMDEVICE); - skb_copy_to_linear_data(skb, np->rx_info[entry].skb->data, pkt_len); - pci_dma_sync_single_for_device(np->pci_dev, - np->rx_info[entry].mapping, - pkt_len, PCI_DMA_FROMDEVICE); - skb_put(skb, pkt_len); - } else { - pci_unmap_single(np->pci_dev, np->rx_info[entry].mapping, np->rx_buf_sz, PCI_DMA_FROMDEVICE); - skb = np->rx_info[entry].skb; - skb_put(skb, pkt_len); - np->rx_info[entry].skb = NULL; - np->rx_info[entry].mapping = 0; - } -#ifndef final_version /* Remove after testing. */ - /* You will want this info for the initial debug. */ - if (debug > 5) { - printk(KERN_DEBUG " Rx data %pM %pM %2.2x%2.2x.\n", - skb->data, skb->data + 6, - skb->data[12], skb->data[13]); - } -#endif - - skb->protocol = eth_type_trans(skb, dev); -#ifdef VLAN_SUPPORT - if (debug > 4) - printk(KERN_DEBUG " netdev_rx() status2 of %d was %#4.4x.\n", np->rx_done, le16_to_cpu(desc->status2)); -#endif - if (le16_to_cpu(desc->status2) & 0x0100) { - skb->ip_summed = CHECKSUM_UNNECESSARY; - dev->stats.rx_compressed++; - } - /* - * This feature doesn't seem to be working, at least - * with the two firmware versions I have. If the GFP sees - * an IP fragment, it either ignores it completely, or reports - * "bad checksum" on it. - * - * Maybe I missed something -- corrections are welcome. - * Until then, the printk stays. :-) -Ion - */ - else if (le16_to_cpu(desc->status2) & 0x0040) { - skb->ip_summed = CHECKSUM_COMPLETE; - skb->csum = le16_to_cpu(desc->csum); - printk(KERN_DEBUG "%s: checksum_hw, status2 = %#x\n", dev->name, le16_to_cpu(desc->status2)); - } -#ifdef VLAN_SUPPORT - if (le16_to_cpu(desc->status2) & 0x0200) { - u16 vlid = le16_to_cpu(desc->vlanid); - - if (debug > 4) { - printk(KERN_DEBUG " netdev_rx() vlanid = %d\n", - vlid); - } - __vlan_hwaccel_put_tag(skb, vlid); - } -#endif /* VLAN_SUPPORT */ - netif_receive_skb(skb); - dev->stats.rx_packets++; - - next_rx: - np->cur_rx++; - desc->status = 0; - np->rx_done = (np->rx_done + 1) % DONE_Q_SIZE; - } - - if (*quota == 0) { /* out of rx quota */ - retcode = 1; - goto out; - } - writew(np->rx_done, np->base + CompletionQConsumerIdx); - - out: - refill_rx_ring(dev); - if (debug > 5) - printk(KERN_DEBUG " exiting netdev_rx(): %d, status of %d was %#8.8x.\n", - retcode, np->rx_done, desc_status); - return retcode; -} - -static int netdev_poll(struct napi_struct *napi, int budget) -{ - struct netdev_private *np = container_of(napi, struct netdev_private, napi); - struct net_device *dev = np->dev; - u32 intr_status; - void __iomem *ioaddr = np->base; - int quota = budget; - - do { - writel(IntrRxDone | IntrRxEmpty, ioaddr + IntrClear); - - if (__netdev_rx(dev, "a)) - goto out; - - intr_status = readl(ioaddr + IntrStatus); - } while (intr_status & (IntrRxDone | IntrRxEmpty)); - - napi_complete(napi); - intr_status = readl(ioaddr + IntrEnable); - intr_status |= IntrRxDone | IntrRxEmpty; - writel(intr_status, ioaddr + IntrEnable); - - out: - if (debug > 5) - printk(KERN_DEBUG " exiting netdev_poll(): %d.\n", - budget - quota); - - /* Restart Rx engine if stopped. */ - return budget - quota; -} - -static void refill_rx_ring(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - struct sk_buff *skb; - int entry = -1; - - /* Refill the Rx ring buffers. */ - for (; np->cur_rx - np->dirty_rx > 0; np->dirty_rx++) { - entry = np->dirty_rx % RX_RING_SIZE; - if (np->rx_info[entry].skb == NULL) { - skb = dev_alloc_skb(np->rx_buf_sz); - np->rx_info[entry].skb = skb; - if (skb == NULL) - break; /* Better luck next round. */ - np->rx_info[entry].mapping = - pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz, PCI_DMA_FROMDEVICE); - skb->dev = dev; /* Mark as being used by this device. */ - np->rx_ring[entry].rxaddr = - cpu_to_dma(np->rx_info[entry].mapping | RxDescValid); - } - if (entry == RX_RING_SIZE - 1) - np->rx_ring[entry].rxaddr |= cpu_to_dma(RxDescEndRing); - } - if (entry >= 0) - writew(entry, np->base + RxDescQIdx); -} - - -static void netdev_media_change(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - void __iomem *ioaddr = np->base; - u16 reg0, reg1, reg4, reg5; - u32 new_tx_mode; - u32 new_intr_timer_ctrl; - - /* reset status first */ - mdio_read(dev, np->phys[0], MII_BMCR); - mdio_read(dev, np->phys[0], MII_BMSR); - - reg0 = mdio_read(dev, np->phys[0], MII_BMCR); - reg1 = mdio_read(dev, np->phys[0], MII_BMSR); - - if (reg1 & BMSR_LSTATUS) { - /* link is up */ - if (reg0 & BMCR_ANENABLE) { - /* autonegotiation is enabled */ - reg4 = mdio_read(dev, np->phys[0], MII_ADVERTISE); - reg5 = mdio_read(dev, np->phys[0], MII_LPA); - if (reg4 & ADVERTISE_100FULL && reg5 & LPA_100FULL) { - np->speed100 = 1; - np->mii_if.full_duplex = 1; - } else if (reg4 & ADVERTISE_100HALF && reg5 & LPA_100HALF) { - np->speed100 = 1; - np->mii_if.full_duplex = 0; - } else if (reg4 & ADVERTISE_10FULL && reg5 & LPA_10FULL) { - np->speed100 = 0; - np->mii_if.full_duplex = 1; - } else { - np->speed100 = 0; - np->mii_if.full_duplex = 0; - } - } else { - /* autonegotiation is disabled */ - if (reg0 & BMCR_SPEED100) - np->speed100 = 1; - else - np->speed100 = 0; - if (reg0 & BMCR_FULLDPLX) - np->mii_if.full_duplex = 1; - else - np->mii_if.full_duplex = 0; - } - netif_carrier_on(dev); - printk(KERN_DEBUG "%s: Link is up, running at %sMbit %s-duplex\n", - dev->name, - np->speed100 ? "100" : "10", - np->mii_if.full_duplex ? "full" : "half"); - - new_tx_mode = np->tx_mode & ~FullDuplex; /* duplex setting */ - if (np->mii_if.full_duplex) - new_tx_mode |= FullDuplex; - if (np->tx_mode != new_tx_mode) { - np->tx_mode = new_tx_mode; - writel(np->tx_mode | MiiSoftReset, ioaddr + TxMode); - udelay(1000); - writel(np->tx_mode, ioaddr + TxMode); - } - - new_intr_timer_ctrl = np->intr_timer_ctrl & ~Timer10X; - if (np->speed100) - new_intr_timer_ctrl |= Timer10X; - if (np->intr_timer_ctrl != new_intr_timer_ctrl) { - np->intr_timer_ctrl = new_intr_timer_ctrl; - writel(new_intr_timer_ctrl, ioaddr + IntrTimerCtrl); - } - } else { - netif_carrier_off(dev); - printk(KERN_DEBUG "%s: Link is down\n", dev->name); - } -} - - -static void netdev_error(struct net_device *dev, int intr_status) -{ - struct netdev_private *np = netdev_priv(dev); - - /* Came close to underrunning the Tx FIFO, increase threshold. */ - if (intr_status & IntrTxDataLow) { - if (np->tx_threshold <= PKT_BUF_SZ / 16) { - writel(++np->tx_threshold, np->base + TxThreshold); - printk(KERN_NOTICE "%s: PCI bus congestion, increasing Tx FIFO threshold to %d bytes\n", - dev->name, np->tx_threshold * 16); - } else - printk(KERN_WARNING "%s: PCI Tx underflow -- adapter is probably malfunctioning\n", dev->name); - } - if (intr_status & IntrRxGFPDead) { - dev->stats.rx_fifo_errors++; - dev->stats.rx_errors++; - } - if (intr_status & (IntrNoTxCsum | IntrDMAErr)) { - dev->stats.tx_fifo_errors++; - dev->stats.tx_errors++; - } - if ((intr_status & ~(IntrNormalMask | IntrAbnormalSummary | IntrLinkChange | IntrStatsMax | IntrTxDataLow | IntrRxGFPDead | IntrNoTxCsum | IntrPCIPad)) && debug) - printk(KERN_ERR "%s: Something Wicked happened! %#8.8x.\n", - dev->name, intr_status); -} - - -static struct net_device_stats *get_stats(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - void __iomem *ioaddr = np->base; - - /* This adapter architecture needs no SMP locks. */ - dev->stats.tx_bytes = readl(ioaddr + 0x57010); - dev->stats.rx_bytes = readl(ioaddr + 0x57044); - dev->stats.tx_packets = readl(ioaddr + 0x57000); - dev->stats.tx_aborted_errors = - readl(ioaddr + 0x57024) + readl(ioaddr + 0x57028); - dev->stats.tx_window_errors = readl(ioaddr + 0x57018); - dev->stats.collisions = - readl(ioaddr + 0x57004) + readl(ioaddr + 0x57008); - - /* The chip only need report frame silently dropped. */ - dev->stats.rx_dropped += readw(ioaddr + RxDMAStatus); - writew(0, ioaddr + RxDMAStatus); - dev->stats.rx_crc_errors = readl(ioaddr + 0x5703C); - dev->stats.rx_frame_errors = readl(ioaddr + 0x57040); - dev->stats.rx_length_errors = readl(ioaddr + 0x57058); - dev->stats.rx_missed_errors = readl(ioaddr + 0x5707C); - - return &dev->stats; -} - -#ifdef VLAN_SUPPORT -static u32 set_vlan_mode(struct netdev_private *np) -{ - u32 ret = VlanMode; - u16 vid; - void __iomem *filter_addr = np->base + HashTable + 8; - int vlan_count = 0; - - for_each_set_bit(vid, np->active_vlans, VLAN_N_VID) { - if (vlan_count == 32) - break; - writew(vid, filter_addr); - filter_addr += 16; - vlan_count++; - } - if (vlan_count == 32) { - ret |= PerfectFilterVlan; - while (vlan_count < 32) { - writew(0, filter_addr); - filter_addr += 16; - vlan_count++; - } - } - return ret; -} -#endif /* VLAN_SUPPORT */ - -static void set_rx_mode(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - void __iomem *ioaddr = np->base; - u32 rx_mode = MinVLANPrio; - struct netdev_hw_addr *ha; - int i; - -#ifdef VLAN_SUPPORT - rx_mode |= set_vlan_mode(np); -#endif /* VLAN_SUPPORT */ - - if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ - rx_mode |= AcceptAll; - } else if ((netdev_mc_count(dev) > multicast_filter_limit) || - (dev->flags & IFF_ALLMULTI)) { - /* Too many to match, or accept all multicasts. */ - rx_mode |= AcceptBroadcast|AcceptAllMulticast|PerfectFilter; - } else if (netdev_mc_count(dev) <= 14) { - /* Use the 16 element perfect filter, skip first two entries. */ - void __iomem *filter_addr = ioaddr + PerfFilterTable + 2 * 16; - __be16 *eaddrs; - netdev_for_each_mc_addr(ha, dev) { - eaddrs = (__be16 *) ha->addr; - writew(be16_to_cpu(eaddrs[2]), filter_addr); filter_addr += 4; - writew(be16_to_cpu(eaddrs[1]), filter_addr); filter_addr += 4; - writew(be16_to_cpu(eaddrs[0]), filter_addr); filter_addr += 8; - } - eaddrs = (__be16 *)dev->dev_addr; - i = netdev_mc_count(dev) + 2; - while (i++ < 16) { - writew(be16_to_cpu(eaddrs[0]), filter_addr); filter_addr += 4; - writew(be16_to_cpu(eaddrs[1]), filter_addr); filter_addr += 4; - writew(be16_to_cpu(eaddrs[2]), filter_addr); filter_addr += 8; - } - rx_mode |= AcceptBroadcast|PerfectFilter; - } else { - /* Must use a multicast hash table. */ - void __iomem *filter_addr; - __be16 *eaddrs; - __le16 mc_filter[32] __attribute__ ((aligned(sizeof(long)))); /* Multicast hash filter */ - - memset(mc_filter, 0, sizeof(mc_filter)); - netdev_for_each_mc_addr(ha, dev) { - /* The chip uses the upper 9 CRC bits - as index into the hash table */ - int bit_nr = ether_crc_le(ETH_ALEN, ha->addr) >> 23; - __le32 *fptr = (__le32 *) &mc_filter[(bit_nr >> 4) & ~1]; - - *fptr |= cpu_to_le32(1 << (bit_nr & 31)); - } - /* Clear the perfect filter list, skip first two entries. */ - filter_addr = ioaddr + PerfFilterTable + 2 * 16; - eaddrs = (__be16 *)dev->dev_addr; - for (i = 2; i < 16; i++) { - writew(be16_to_cpu(eaddrs[0]), filter_addr); filter_addr += 4; - writew(be16_to_cpu(eaddrs[1]), filter_addr); filter_addr += 4; - writew(be16_to_cpu(eaddrs[2]), filter_addr); filter_addr += 8; - } - for (filter_addr = ioaddr + HashTable, i = 0; i < 32; filter_addr+= 16, i++) - writew(mc_filter[i], filter_addr); - rx_mode |= AcceptBroadcast|PerfectFilter|HashFilter; - } - writel(rx_mode, ioaddr + RxFilterMode); -} - -static int check_if_running(struct net_device *dev) -{ - if (!netif_running(dev)) - return -EINVAL; - return 0; -} - -static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - struct netdev_private *np = netdev_priv(dev); - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - strcpy(info->bus_info, pci_name(np->pci_dev)); -} - -static int get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) -{ - struct netdev_private *np = netdev_priv(dev); - spin_lock_irq(&np->lock); - mii_ethtool_gset(&np->mii_if, ecmd); - spin_unlock_irq(&np->lock); - return 0; -} - -static int set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) -{ - struct netdev_private *np = netdev_priv(dev); - int res; - spin_lock_irq(&np->lock); - res = mii_ethtool_sset(&np->mii_if, ecmd); - spin_unlock_irq(&np->lock); - check_duplex(dev); - return res; -} - -static int nway_reset(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - return mii_nway_restart(&np->mii_if); -} - -static u32 get_link(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - return mii_link_ok(&np->mii_if); -} - -static u32 get_msglevel(struct net_device *dev) -{ - return debug; -} - -static void set_msglevel(struct net_device *dev, u32 val) -{ - debug = val; -} - -static const struct ethtool_ops ethtool_ops = { - .begin = check_if_running, - .get_drvinfo = get_drvinfo, - .get_settings = get_settings, - .set_settings = set_settings, - .nway_reset = nway_reset, - .get_link = get_link, - .get_msglevel = get_msglevel, - .set_msglevel = set_msglevel, -}; - -static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -{ - struct netdev_private *np = netdev_priv(dev); - struct mii_ioctl_data *data = if_mii(rq); - int rc; - - if (!netif_running(dev)) - return -EINVAL; - - spin_lock_irq(&np->lock); - rc = generic_mii_ioctl(&np->mii_if, data, cmd, NULL); - spin_unlock_irq(&np->lock); - - if ((cmd == SIOCSMIIREG) && (data->phy_id == np->phys[0])) - check_duplex(dev); - - return rc; -} - -static int netdev_close(struct net_device *dev) -{ - struct netdev_private *np = netdev_priv(dev); - void __iomem *ioaddr = np->base; - int i; - - netif_stop_queue(dev); - - napi_disable(&np->napi); - - if (debug > 1) { - printk(KERN_DEBUG "%s: Shutting down ethercard, Intr status %#8.8x.\n", - dev->name, (int) readl(ioaddr + IntrStatus)); - printk(KERN_DEBUG "%s: Queue pointers were Tx %d / %d, Rx %d / %d.\n", - dev->name, np->cur_tx, np->dirty_tx, - np->cur_rx, np->dirty_rx); - } - - /* Disable interrupts by clearing the interrupt mask. */ - writel(0, ioaddr + IntrEnable); - - /* Stop the chip's Tx and Rx processes. */ - writel(0, ioaddr + GenCtrl); - readl(ioaddr + GenCtrl); - - if (debug > 5) { - printk(KERN_DEBUG" Tx ring at %#llx:\n", - (long long) np->tx_ring_dma); - for (i = 0; i < 8 /* TX_RING_SIZE is huge! */; i++) - printk(KERN_DEBUG " #%d desc. %#8.8x %#llx -> %#8.8x.\n", - i, le32_to_cpu(np->tx_ring[i].status), - (long long) dma_to_cpu(np->tx_ring[i].addr), - le32_to_cpu(np->tx_done_q[i].status)); - printk(KERN_DEBUG " Rx ring at %#llx -> %p:\n", - (long long) np->rx_ring_dma, np->rx_done_q); - if (np->rx_done_q) - for (i = 0; i < 8 /* RX_RING_SIZE */; i++) { - printk(KERN_DEBUG " #%d desc. %#llx -> %#8.8x\n", - i, (long long) dma_to_cpu(np->rx_ring[i].rxaddr), le32_to_cpu(np->rx_done_q[i].status)); - } - } - - free_irq(dev->irq, dev); - - /* Free all the skbuffs in the Rx queue. */ - for (i = 0; i < RX_RING_SIZE; i++) { - np->rx_ring[i].rxaddr = cpu_to_dma(0xBADF00D0); /* An invalid address. */ - if (np->rx_info[i].skb != NULL) { - pci_unmap_single(np->pci_dev, np->rx_info[i].mapping, np->rx_buf_sz, PCI_DMA_FROMDEVICE); - dev_kfree_skb(np->rx_info[i].skb); - } - np->rx_info[i].skb = NULL; - np->rx_info[i].mapping = 0; - } - for (i = 0; i < TX_RING_SIZE; i++) { - struct sk_buff *skb = np->tx_info[i].skb; - if (skb == NULL) - continue; - pci_unmap_single(np->pci_dev, - np->tx_info[i].mapping, - skb_first_frag_len(skb), PCI_DMA_TODEVICE); - np->tx_info[i].mapping = 0; - dev_kfree_skb(skb); - np->tx_info[i].skb = NULL; - } - - return 0; -} - -#ifdef CONFIG_PM -static int starfire_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct net_device *dev = pci_get_drvdata(pdev); - - if (netif_running(dev)) { - netif_device_detach(dev); - netdev_close(dev); - } - - pci_save_state(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev,state)); - - return 0; -} - -static int starfire_resume(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - - if (netif_running(dev)) { - netdev_open(dev); - netif_device_attach(dev); - } - - return 0; -} -#endif /* CONFIG_PM */ - - -static void __devexit starfire_remove_one (struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct netdev_private *np = netdev_priv(dev); - - BUG_ON(!dev); - - unregister_netdev(dev); - - if (np->queue_mem) - pci_free_consistent(pdev, np->queue_mem_size, np->queue_mem, np->queue_mem_dma); - - - /* XXX: add wakeup code -- requires firmware for MagicPacket */ - pci_set_power_state(pdev, PCI_D3hot); /* go to sleep in D3 mode */ - pci_disable_device(pdev); - - iounmap(np->base); - pci_release_regions(pdev); - - pci_set_drvdata(pdev, NULL); - free_netdev(dev); /* Will also free np!! */ -} - - -static struct pci_driver starfire_driver = { - .name = DRV_NAME, - .probe = starfire_init_one, - .remove = __devexit_p(starfire_remove_one), -#ifdef CONFIG_PM - .suspend = starfire_suspend, - .resume = starfire_resume, -#endif /* CONFIG_PM */ - .id_table = starfire_pci_tbl, -}; - - -static int __init starfire_init (void) -{ -/* when a module, this is printed whether or not devices are found in probe */ -#ifdef MODULE - printk(version); - - printk(KERN_INFO DRV_NAME ": polling (NAPI) enabled\n"); -#endif - - BUILD_BUG_ON(sizeof(dma_addr_t) != sizeof(netdrv_addr_t)); - - return pci_register_driver(&starfire_driver); -} - - -static void __exit starfire_cleanup (void) -{ - pci_unregister_driver (&starfire_driver); -} - - -module_init(starfire_init); -module_exit(starfire_cleanup); - - -/* - * Local variables: - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ |