diff options
Diffstat (limited to 'drivers/net/sis190.c')
| -rw-r--r-- | drivers/net/sis190.c | 1956 |
1 files changed, 0 insertions, 1956 deletions
diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c deleted file mode 100644 index 3c0f1312b391..000000000000 --- a/drivers/net/sis190.c +++ /dev/null @@ -1,1956 +0,0 @@ -/* - sis190.c: Silicon Integrated Systems SiS190 ethernet driver - - Copyright (c) 2003 K.M. Liu <kmliu@sis.com> - Copyright (c) 2003, 2004 Jeff Garzik <jgarzik@pobox.com> - Copyright (c) 2003, 2004, 2005 Francois Romieu <romieu@fr.zoreil.com> - - Based on r8169.c, tg3.c, 8139cp.c, skge.c, epic100.c and SiS 190/191 - genuine driver. - - 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. - - See the file COPYING in this distribution for more information. - -*/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/netdevice.h> -#include <linux/rtnetlink.h> -#include <linux/etherdevice.h> -#include <linux/ethtool.h> -#include <linux/pci.h> -#include <linux/mii.h> -#include <linux/delay.h> -#include <linux/crc32.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> -#include <asm/irq.h> - -#define PHY_MAX_ADDR 32 -#define PHY_ID_ANY 0x1f -#define MII_REG_ANY 0x1f - -#define DRV_VERSION "1.4" -#define DRV_NAME "sis190" -#define SIS190_DRIVER_NAME DRV_NAME " Gigabit Ethernet driver " DRV_VERSION - -#define sis190_rx_skb netif_rx -#define sis190_rx_quota(count, quota) count - -#define MAC_ADDR_LEN 6 - -#define NUM_TX_DESC 64 /* [8..1024] */ -#define NUM_RX_DESC 64 /* [8..8192] */ -#define TX_RING_BYTES (NUM_TX_DESC * sizeof(struct TxDesc)) -#define RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc)) -#define RX_BUF_SIZE 1536 -#define RX_BUF_MASK 0xfff8 - -#define SIS190_REGS_SIZE 0x80 -#define SIS190_TX_TIMEOUT (6*HZ) -#define SIS190_PHY_TIMEOUT (10*HZ) -#define SIS190_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \ - NETIF_MSG_LINK | NETIF_MSG_IFUP | \ - NETIF_MSG_IFDOWN) - -/* Enhanced PHY access register bit definitions */ -#define EhnMIIread 0x0000 -#define EhnMIIwrite 0x0020 -#define EhnMIIdataShift 16 -#define EhnMIIpmdShift 6 /* 7016 only */ -#define EhnMIIregShift 11 -#define EhnMIIreq 0x0010 -#define EhnMIInotDone 0x0010 - -/* Write/read MMIO register */ -#define SIS_W8(reg, val) writeb ((val), ioaddr + (reg)) -#define SIS_W16(reg, val) writew ((val), ioaddr + (reg)) -#define SIS_W32(reg, val) writel ((val), ioaddr + (reg)) -#define SIS_R8(reg) readb (ioaddr + (reg)) -#define SIS_R16(reg) readw (ioaddr + (reg)) -#define SIS_R32(reg) readl (ioaddr + (reg)) - -#define SIS_PCI_COMMIT() SIS_R32(IntrControl) - -enum sis190_registers { - TxControl = 0x00, - TxDescStartAddr = 0x04, - rsv0 = 0x08, // reserved - TxSts = 0x0c, // unused (Control/Status) - RxControl = 0x10, - RxDescStartAddr = 0x14, - rsv1 = 0x18, // reserved - RxSts = 0x1c, // unused - IntrStatus = 0x20, - IntrMask = 0x24, - IntrControl = 0x28, - IntrTimer = 0x2c, // unused (Interrupt Timer) - PMControl = 0x30, // unused (Power Mgmt Control/Status) - rsv2 = 0x34, // reserved - ROMControl = 0x38, - ROMInterface = 0x3c, - StationControl = 0x40, - GMIIControl = 0x44, - GIoCR = 0x48, // unused (GMAC IO Compensation) - GIoCtrl = 0x4c, // unused (GMAC IO Control) - TxMacControl = 0x50, - TxLimit = 0x54, // unused (Tx MAC Timer/TryLimit) - RGDelay = 0x58, // unused (RGMII Tx Internal Delay) - rsv3 = 0x5c, // reserved - RxMacControl = 0x60, - RxMacAddr = 0x62, - RxHashTable = 0x68, - // Undocumented = 0x6c, - RxWolCtrl = 0x70, - RxWolData = 0x74, // unused (Rx WOL Data Access) - RxMPSControl = 0x78, // unused (Rx MPS Control) - rsv4 = 0x7c, // reserved -}; - -enum sis190_register_content { - /* IntrStatus */ - SoftInt = 0x40000000, // unused - Timeup = 0x20000000, // unused - PauseFrame = 0x00080000, // unused - MagicPacket = 0x00040000, // unused - WakeupFrame = 0x00020000, // unused - LinkChange = 0x00010000, - RxQEmpty = 0x00000080, - RxQInt = 0x00000040, - TxQ1Empty = 0x00000020, // unused - TxQ1Int = 0x00000010, - TxQ0Empty = 0x00000008, // unused - TxQ0Int = 0x00000004, - RxHalt = 0x00000002, - TxHalt = 0x00000001, - - /* {Rx/Tx}CmdBits */ - CmdReset = 0x10, - CmdRxEnb = 0x08, // unused - CmdTxEnb = 0x01, - RxBufEmpty = 0x01, // unused - - /* Cfg9346Bits */ - Cfg9346_Lock = 0x00, // unused - Cfg9346_Unlock = 0xc0, // unused - - /* RxMacControl */ - AcceptErr = 0x20, // unused - AcceptRunt = 0x10, // unused - AcceptBroadcast = 0x0800, - AcceptMulticast = 0x0400, - AcceptMyPhys = 0x0200, - AcceptAllPhys = 0x0100, - - /* RxConfigBits */ - RxCfgFIFOShift = 13, - RxCfgDMAShift = 8, // 0x1a in RxControl ? - - /* TxConfigBits */ - TxInterFrameGapShift = 24, - TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */ - - LinkStatus = 0x02, // unused - FullDup = 0x01, // unused - - /* TBICSRBit */ - TBILinkOK = 0x02000000, // unused -}; - -struct TxDesc { - __le32 PSize; - __le32 status; - __le32 addr; - __le32 size; -}; - -struct RxDesc { - __le32 PSize; - __le32 status; - __le32 addr; - __le32 size; -}; - -enum _DescStatusBit { - /* _Desc.status */ - OWNbit = 0x80000000, // RXOWN/TXOWN - INTbit = 0x40000000, // RXINT/TXINT - CRCbit = 0x00020000, // CRCOFF/CRCEN - PADbit = 0x00010000, // PREADD/PADEN - /* _Desc.size */ - RingEnd = 0x80000000, - /* TxDesc.status */ - LSEN = 0x08000000, // TSO ? -- FR - IPCS = 0x04000000, - TCPCS = 0x02000000, - UDPCS = 0x01000000, - BSTEN = 0x00800000, - EXTEN = 0x00400000, - DEFEN = 0x00200000, - BKFEN = 0x00100000, - CRSEN = 0x00080000, - COLEN = 0x00040000, - THOL3 = 0x30000000, - THOL2 = 0x20000000, - THOL1 = 0x10000000, - THOL0 = 0x00000000, - - WND = 0x00080000, - TABRT = 0x00040000, - FIFO = 0x00020000, - LINK = 0x00010000, - ColCountMask = 0x0000ffff, - /* RxDesc.status */ - IPON = 0x20000000, - TCPON = 0x10000000, - UDPON = 0x08000000, - Wakup = 0x00400000, - Magic = 0x00200000, - Pause = 0x00100000, - DEFbit = 0x00200000, - BCAST = 0x000c0000, - MCAST = 0x00080000, - UCAST = 0x00040000, - /* RxDesc.PSize */ - TAGON = 0x80000000, - RxDescCountMask = 0x7f000000, // multi-desc pkt when > 1 ? -- FR - ABORT = 0x00800000, - SHORT = 0x00400000, - LIMIT = 0x00200000, - MIIER = 0x00100000, - OVRUN = 0x00080000, - NIBON = 0x00040000, - COLON = 0x00020000, - CRCOK = 0x00010000, - RxSizeMask = 0x0000ffff - /* - * The asic could apparently do vlan, TSO, jumbo (sis191 only) and - * provide two (unused with Linux) Tx queues. No publicly - * available documentation alas. - */ -}; - -enum sis190_eeprom_access_register_bits { - EECS = 0x00000001, // unused - EECLK = 0x00000002, // unused - EEDO = 0x00000008, // unused - EEDI = 0x00000004, // unused - EEREQ = 0x00000080, - EEROP = 0x00000200, - EEWOP = 0x00000100 // unused -}; - -/* EEPROM Addresses */ -enum sis190_eeprom_address { - EEPROMSignature = 0x00, - EEPROMCLK = 0x01, // unused - EEPROMInfo = 0x02, - EEPROMMACAddr = 0x03 -}; - -enum sis190_feature { - F_HAS_RGMII = 1, - F_PHY_88E1111 = 2, - F_PHY_BCM5461 = 4 -}; - -struct sis190_private { - void __iomem *mmio_addr; - struct pci_dev *pci_dev; - struct net_device *dev; - spinlock_t lock; - u32 rx_buf_sz; - u32 cur_rx; - u32 cur_tx; - u32 dirty_rx; - u32 dirty_tx; - dma_addr_t rx_dma; - dma_addr_t tx_dma; - struct RxDesc *RxDescRing; - struct TxDesc *TxDescRing; - struct sk_buff *Rx_skbuff[NUM_RX_DESC]; - struct sk_buff *Tx_skbuff[NUM_TX_DESC]; - struct work_struct phy_task; - struct timer_list timer; - u32 msg_enable; - struct mii_if_info mii_if; - struct list_head first_phy; - u32 features; - u32 negotiated_lpa; - enum { - LNK_OFF, - LNK_ON, - LNK_AUTONEG, - } link_status; -}; - -struct sis190_phy { - struct list_head list; - int phy_id; - u16 id[2]; - u16 status; - u8 type; -}; - -enum sis190_phy_type { - UNKNOWN = 0x00, - HOME = 0x01, - LAN = 0x02, - MIX = 0x03 -}; - -static struct mii_chip_info { - const char *name; - u16 id[2]; - unsigned int type; - u32 feature; -} mii_chip_table[] = { - { "Atheros PHY", { 0x004d, 0xd010 }, LAN, 0 }, - { "Atheros PHY AR8012", { 0x004d, 0xd020 }, LAN, 0 }, - { "Broadcom PHY BCM5461", { 0x0020, 0x60c0 }, LAN, F_PHY_BCM5461 }, - { "Broadcom PHY AC131", { 0x0143, 0xbc70 }, LAN, 0 }, - { "Agere PHY ET1101B", { 0x0282, 0xf010 }, LAN, 0 }, - { "Marvell PHY 88E1111", { 0x0141, 0x0cc0 }, LAN, F_PHY_88E1111 }, - { "Realtek PHY RTL8201", { 0x0000, 0x8200 }, LAN, 0 }, - { NULL, } -}; - -static const struct { - const char *name; -} sis_chip_info[] = { - { "SiS 190 PCI Fast Ethernet adapter" }, - { "SiS 191 PCI Gigabit Ethernet adapter" }, -}; - -static DEFINE_PCI_DEVICE_TABLE(sis190_pci_tbl) = { - { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0190), 0, 0, 0 }, - { PCI_DEVICE(PCI_VENDOR_ID_SI, 0x0191), 0, 0, 1 }, - { 0, }, -}; - -MODULE_DEVICE_TABLE(pci, sis190_pci_tbl); - -static int rx_copybreak = 200; - -static struct { - u32 msg_enable; -} debug = { -1 }; - -MODULE_DESCRIPTION("SiS sis190/191 Gigabit Ethernet driver"); -module_param(rx_copybreak, int, 0); -MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames"); -module_param_named(debug, debug.msg_enable, int, 0); -MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)"); -MODULE_AUTHOR("K.M. Liu <kmliu@sis.com>, Ueimor <romieu@fr.zoreil.com>"); -MODULE_VERSION(DRV_VERSION); -MODULE_LICENSE("GPL"); - -static const u32 sis190_intr_mask = - RxQEmpty | RxQInt | TxQ1Int | TxQ0Int | RxHalt | TxHalt | LinkChange; - -/* - * Maximum number of multicast addresses to filter (vs. Rx-all-multicast). - * The chips use a 64 element hash table based on the Ethernet CRC. - */ -static const int multicast_filter_limit = 32; - -static void __mdio_cmd(void __iomem *ioaddr, u32 ctl) -{ - unsigned int i; - - SIS_W32(GMIIControl, ctl); - - msleep(1); - - for (i = 0; i < 100; i++) { - if (!(SIS_R32(GMIIControl) & EhnMIInotDone)) - break; - msleep(1); - } - - if (i > 99) - pr_err("PHY command failed !\n"); -} - -static void mdio_write(void __iomem *ioaddr, int phy_id, int reg, int val) -{ - __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIwrite | - (((u32) reg) << EhnMIIregShift) | (phy_id << EhnMIIpmdShift) | - (((u32) val) << EhnMIIdataShift)); -} - -static int mdio_read(void __iomem *ioaddr, int phy_id, int reg) -{ - __mdio_cmd(ioaddr, EhnMIIreq | EhnMIIread | - (((u32) reg) << EhnMIIregShift) | (phy_id << EhnMIIpmdShift)); - - return (u16) (SIS_R32(GMIIControl) >> EhnMIIdataShift); -} - -static void __mdio_write(struct net_device *dev, int phy_id, int reg, int val) -{ - struct sis190_private *tp = netdev_priv(dev); - - mdio_write(tp->mmio_addr, phy_id, reg, val); -} - -static int __mdio_read(struct net_device *dev, int phy_id, int reg) -{ - struct sis190_private *tp = netdev_priv(dev); - - return mdio_read(tp->mmio_addr, phy_id, reg); -} - -static u16 mdio_read_latched(void __iomem *ioaddr, int phy_id, int reg) -{ - mdio_read(ioaddr, phy_id, reg); - return mdio_read(ioaddr, phy_id, reg); -} - -static u16 __devinit sis190_read_eeprom(void __iomem *ioaddr, u32 reg) -{ - u16 data = 0xffff; - unsigned int i; - - if (!(SIS_R32(ROMControl) & 0x0002)) - return 0; - - SIS_W32(ROMInterface, EEREQ | EEROP | (reg << 10)); - - for (i = 0; i < 200; i++) { - if (!(SIS_R32(ROMInterface) & EEREQ)) { - data = (SIS_R32(ROMInterface) & 0xffff0000) >> 16; - break; - } - msleep(1); - } - - return data; -} - -static void sis190_irq_mask_and_ack(void __iomem *ioaddr) -{ - SIS_W32(IntrMask, 0x00); - SIS_W32(IntrStatus, 0xffffffff); - SIS_PCI_COMMIT(); -} - -static void sis190_asic_down(void __iomem *ioaddr) -{ - /* Stop the chip's Tx and Rx DMA processes. */ - - SIS_W32(TxControl, 0x1a00); - SIS_W32(RxControl, 0x1a00); - - sis190_irq_mask_and_ack(ioaddr); -} - -static void sis190_mark_as_last_descriptor(struct RxDesc *desc) -{ - desc->size |= cpu_to_le32(RingEnd); -} - -static inline void sis190_give_to_asic(struct RxDesc *desc, u32 rx_buf_sz) -{ - u32 eor = le32_to_cpu(desc->size) & RingEnd; - - desc->PSize = 0x0; - desc->size = cpu_to_le32((rx_buf_sz & RX_BUF_MASK) | eor); - wmb(); - desc->status = cpu_to_le32(OWNbit | INTbit); -} - -static inline void sis190_map_to_asic(struct RxDesc *desc, dma_addr_t mapping, - u32 rx_buf_sz) -{ - desc->addr = cpu_to_le32(mapping); - sis190_give_to_asic(desc, rx_buf_sz); -} - -static inline void sis190_make_unusable_by_asic(struct RxDesc *desc) -{ - desc->PSize = 0x0; - desc->addr = cpu_to_le32(0xdeadbeef); - desc->size &= cpu_to_le32(RingEnd); - wmb(); - desc->status = 0x0; -} - -static struct sk_buff *sis190_alloc_rx_skb(struct sis190_private *tp, - struct RxDesc *desc) -{ - u32 rx_buf_sz = tp->rx_buf_sz; - struct sk_buff *skb; - dma_addr_t mapping; - - skb = netdev_alloc_skb(tp->dev, rx_buf_sz); - if (unlikely(!skb)) - goto skb_alloc_failed; - mapping = pci_map_single(tp->pci_dev, skb->data, tp->rx_buf_sz, - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(tp->pci_dev, mapping)) - goto out; - sis190_map_to_asic(desc, mapping, rx_buf_sz); - - return skb; - -out: - dev_kfree_skb_any(skb); -skb_alloc_failed: - sis190_make_unusable_by_asic(desc); - return NULL; -} - -static u32 sis190_rx_fill(struct sis190_private *tp, struct net_device *dev, - u32 start, u32 end) -{ - u32 cur; - - for (cur = start; cur < end; cur++) { - unsigned int i = cur % NUM_RX_DESC; - - if (tp->Rx_skbuff[i]) - continue; - - tp->Rx_skbuff[i] = sis190_alloc_rx_skb(tp, tp->RxDescRing + i); - - if (!tp->Rx_skbuff[i]) - break; - } - return cur - start; -} - -static bool sis190_try_rx_copy(struct sis190_private *tp, - struct sk_buff **sk_buff, int pkt_size, - dma_addr_t addr) -{ - struct sk_buff *skb; - bool done = false; - - if (pkt_size >= rx_copybreak) - goto out; - - skb = netdev_alloc_skb_ip_align(tp->dev, pkt_size); - if (!skb) - goto out; - - pci_dma_sync_single_for_cpu(tp->pci_dev, addr, tp->rx_buf_sz, - PCI_DMA_FROMDEVICE); - skb_copy_to_linear_data(skb, sk_buff[0]->data, pkt_size); - *sk_buff = skb; - done = true; -out: - return done; -} - -static inline int sis190_rx_pkt_err(u32 status, struct net_device_stats *stats) -{ -#define ErrMask (OVRUN | SHORT | LIMIT | MIIER | NIBON | COLON | ABORT) - - if ((status & CRCOK) && !(status & ErrMask)) - return 0; - - if (!(status & CRCOK)) - stats->rx_crc_errors++; - else if (status & OVRUN) - stats->rx_over_errors++; - else if (status & (SHORT | LIMIT)) - stats->rx_length_errors++; - else if (status & (MIIER | NIBON | COLON)) - stats->rx_frame_errors++; - - stats->rx_errors++; - return -1; -} - -static int sis190_rx_interrupt(struct net_device *dev, - struct sis190_private *tp, void __iomem *ioaddr) -{ - struct net_device_stats *stats = &dev->stats; - u32 rx_left, cur_rx = tp->cur_rx; - u32 delta, count; - - rx_left = NUM_RX_DESC + tp->dirty_rx - cur_rx; - rx_left = sis190_rx_quota(rx_left, (u32) dev->quota); - - for (; rx_left > 0; rx_left--, cur_rx++) { - unsigned int entry = cur_rx % NUM_RX_DESC; - struct RxDesc *desc = tp->RxDescRing + entry; - u32 status; - - if (le32_to_cpu(desc->status) & OWNbit) - break; - - status = le32_to_cpu(desc->PSize); - - //netif_info(tp, intr, dev, "Rx PSize = %08x\n", status); - - if (sis190_rx_pkt_err(status, stats) < 0) - sis190_give_to_asic(desc, tp->rx_buf_sz); - else { - struct sk_buff *skb = tp->Rx_skbuff[entry]; - dma_addr_t addr = le32_to_cpu(desc->addr); - int pkt_size = (status & RxSizeMask) - 4; - struct pci_dev *pdev = tp->pci_dev; - - if (unlikely(pkt_size > tp->rx_buf_sz)) { - netif_info(tp, intr, dev, - "(frag) status = %08x\n", status); - stats->rx_dropped++; - stats->rx_length_errors++; - sis190_give_to_asic(desc, tp->rx_buf_sz); - continue; - } - - - if (sis190_try_rx_copy(tp, &skb, pkt_size, addr)) { - pci_dma_sync_single_for_device(pdev, addr, - tp->rx_buf_sz, PCI_DMA_FROMDEVICE); - sis190_give_to_asic(desc, tp->rx_buf_sz); - } else { - pci_unmap_single(pdev, addr, tp->rx_buf_sz, - PCI_DMA_FROMDEVICE); - tp->Rx_skbuff[entry] = NULL; - sis190_make_unusable_by_asic(desc); - } - - skb_put(skb, pkt_size); - skb->protocol = eth_type_trans(skb, dev); - - sis190_rx_skb(skb); - - stats->rx_packets++; - stats->rx_bytes += pkt_size; - if ((status & BCAST) == MCAST) - stats->multicast++; - } - } - count = cur_rx - tp->cur_rx; - tp->cur_rx = cur_rx; - - delta = sis190_rx_fill(tp, dev, tp->dirty_rx, tp->cur_rx); - if (!delta && count) - netif_info(tp, intr, dev, "no Rx buffer allocated\n"); - tp->dirty_rx += delta; - - if ((tp->dirty_rx + NUM_RX_DESC) == tp->cur_rx) - netif_emerg(tp, intr, dev, "Rx buffers exhausted\n"); - - return count; -} - -static void sis190_unmap_tx_skb(struct pci_dev *pdev, struct sk_buff *skb, - struct TxDesc *desc) -{ - unsigned int len; - - len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len; - - pci_unmap_single(pdev, le32_to_cpu(desc->addr), len, PCI_DMA_TODEVICE); - - memset(desc, 0x00, sizeof(*desc)); -} - -static inline int sis190_tx_pkt_err(u32 status, struct net_device_stats *stats) -{ -#define TxErrMask (WND | TABRT | FIFO | LINK) - - if (!unlikely(status & TxErrMask)) - return 0; - - if (status & WND) - stats->tx_window_errors++; - if (status & TABRT) - stats->tx_aborted_errors++; - if (status & FIFO) - stats->tx_fifo_errors++; - if (status & LINK) - stats->tx_carrier_errors++; - - stats->tx_errors++; - - return -1; -} - -static void sis190_tx_interrupt(struct net_device *dev, - struct sis190_private *tp, void __iomem *ioaddr) -{ - struct net_device_stats *stats = &dev->stats; - u32 pending, dirty_tx = tp->dirty_tx; - /* - * It would not be needed if queueing was allowed to be enabled - * again too early (hint: think preempt and unclocked smp systems). - */ - unsigned int queue_stopped; - - smp_rmb(); - pending = tp->cur_tx - dirty_tx; - queue_stopped = (pending == NUM_TX_DESC); - - for (; pending; pending--, dirty_tx++) { - unsigned int entry = dirty_tx % NUM_TX_DESC; - struct TxDesc *txd = tp->TxDescRing + entry; - u32 status = le32_to_cpu(txd->status); - struct sk_buff *skb; - - if (status & OWNbit) - break; - - skb = tp->Tx_skbuff[entry]; - - if (likely(sis190_tx_pkt_err(status, stats) == 0)) { - stats->tx_packets++; - stats->tx_bytes += skb->len; - stats->collisions += ((status & ColCountMask) - 1); - } - - sis190_unmap_tx_skb(tp->pci_dev, skb, txd); - tp->Tx_skbuff[entry] = NULL; - dev_kfree_skb_irq(skb); - } - - if (tp->dirty_tx != dirty_tx) { - tp->dirty_tx = dirty_tx; - smp_wmb(); - if (queue_stopped) - netif_wake_queue(dev); - } -} - -/* - * The interrupt handler does all of the Rx thread work and cleans up after - * the Tx thread. - */ -static irqreturn_t sis190_interrupt(int irq, void *__dev) -{ - struct net_device *dev = __dev; - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned int handled = 0; - u32 status; - - status = SIS_R32(IntrStatus); - - if ((status == 0xffffffff) || !status) - goto out; - - handled = 1; - - if (unlikely(!netif_running(dev))) { - sis190_asic_down(ioaddr); - goto out; - } - - SIS_W32(IntrStatus, status); - -// netif_info(tp, intr, dev, "status = %08x\n", status); - - if (status & LinkChange) { - netif_info(tp, intr, dev, "link change\n"); - del_timer(&tp->timer); - schedule_work(&tp->phy_task); - } - - if (status & RxQInt) - sis190_rx_interrupt(dev, tp, ioaddr); - - if (status & TxQ0Int) - sis190_tx_interrupt(dev, tp, ioaddr); -out: - return IRQ_RETVAL(handled); -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void sis190_netpoll(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - struct pci_dev *pdev = tp->pci_dev; - - disable_irq(pdev->irq); - sis190_interrupt(pdev->irq, dev); - enable_irq(pdev->irq); -} -#endif - -static void sis190_free_rx_skb(struct sis190_private *tp, - struct sk_buff **sk_buff, struct RxDesc *desc) -{ - struct pci_dev *pdev = tp->pci_dev; - - pci_unmap_single(pdev, le32_to_cpu(desc->addr), tp->rx_buf_sz, - PCI_DMA_FROMDEVICE); - dev_kfree_skb(*sk_buff); - *sk_buff = NULL; - sis190_make_unusable_by_asic(desc); -} - -static void sis190_rx_clear(struct sis190_private *tp) -{ - unsigned int i; - - for (i = 0; i < NUM_RX_DESC; i++) { - if (!tp->Rx_skbuff[i]) - continue; - sis190_free_rx_skb(tp, tp->Rx_skbuff + i, tp->RxDescRing + i); - } -} - -static void sis190_init_ring_indexes(struct sis190_private *tp) -{ - tp->dirty_tx = tp->dirty_rx = tp->cur_tx = tp->cur_rx = 0; -} - -static int sis190_init_ring(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - - sis190_init_ring_indexes(tp); - - memset(tp->Tx_skbuff, 0x0, NUM_TX_DESC * sizeof(struct sk_buff *)); - memset(tp->Rx_skbuff, 0x0, NUM_RX_DESC * sizeof(struct sk_buff *)); - - if (sis190_rx_fill(tp, dev, 0, NUM_RX_DESC) != NUM_RX_DESC) - goto err_rx_clear; - - sis190_mark_as_last_descriptor(tp->RxDescRing + NUM_RX_DESC - 1); - - return 0; - -err_rx_clear: - sis190_rx_clear(tp); - return -ENOMEM; -} - -static void sis190_set_rx_mode(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned long flags; - u32 mc_filter[2]; /* Multicast hash filter */ - u16 rx_mode; - - if (dev->flags & IFF_PROMISC) { - rx_mode = - AcceptBroadcast | AcceptMulticast | AcceptMyPhys | - AcceptAllPhys; - mc_filter[1] = mc_filter[0] = 0xffffffff; - } else if ((netdev_mc_count(dev) > multicast_filter_limit) || - (dev->flags & IFF_ALLMULTI)) { - /* Too many to filter perfectly -- accept all multicasts. */ - rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys; - mc_filter[1] = mc_filter[0] = 0xffffffff; - } else { - struct netdev_hw_addr *ha; - - rx_mode = AcceptBroadcast | AcceptMyPhys; - mc_filter[1] = mc_filter[0] = 0; - netdev_for_each_mc_addr(ha, dev) { - int bit_nr = - ether_crc(ETH_ALEN, ha->addr) & 0x3f; - mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); - rx_mode |= AcceptMulticast; - } - } - - spin_lock_irqsave(&tp->lock, flags); - - SIS_W16(RxMacControl, rx_mode | 0x2); - SIS_W32(RxHashTable, mc_filter[0]); - SIS_W32(RxHashTable + 4, mc_filter[1]); - - spin_unlock_irqrestore(&tp->lock, flags); -} - -static void sis190_soft_reset(void __iomem *ioaddr) -{ - SIS_W32(IntrControl, 0x8000); - SIS_PCI_COMMIT(); - SIS_W32(IntrControl, 0x0); - sis190_asic_down(ioaddr); -} - -static void sis190_hw_start(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - - sis190_soft_reset(ioaddr); - - SIS_W32(TxDescStartAddr, tp->tx_dma); - SIS_W32(RxDescStartAddr, tp->rx_dma); - - SIS_W32(IntrStatus, 0xffffffff); - SIS_W32(IntrMask, 0x0); - SIS_W32(GMIIControl, 0x0); - SIS_W32(TxMacControl, 0x60); - SIS_W16(RxMacControl, 0x02); - SIS_W32(RxHashTable, 0x0); - SIS_W32(0x6c, 0x0); - SIS_W32(RxWolCtrl, 0x0); - SIS_W32(RxWolData, 0x0); - - SIS_PCI_COMMIT(); - - sis190_set_rx_mode(dev); - - /* Enable all known interrupts by setting the interrupt mask. */ - SIS_W32(IntrMask, sis190_intr_mask); - - SIS_W32(TxControl, 0x1a00 | CmdTxEnb); - SIS_W32(RxControl, 0x1a1d); - - netif_start_queue(dev); -} - -static void sis190_phy_task(struct work_struct *work) -{ - struct sis190_private *tp = - container_of(work, struct sis190_private, phy_task); - struct net_device *dev = tp->dev; - void __iomem *ioaddr = tp->mmio_addr; - int phy_id = tp->mii_if.phy_id; - u16 val; - - rtnl_lock(); - - if (!netif_running(dev)) - goto out_unlock; - - val = mdio_read(ioaddr, phy_id, MII_BMCR); - if (val & BMCR_RESET) { - // FIXME: needlessly high ? -- FR 02/07/2005 - mod_timer(&tp->timer, jiffies + HZ/10); - goto out_unlock; - } - - val = mdio_read_latched(ioaddr, phy_id, MII_BMSR); - if (!(val & BMSR_ANEGCOMPLETE) && tp->link_status != LNK_AUTONEG) { - netif_carrier_off(dev); - netif_warn(tp, link, dev, "auto-negotiating...\n"); - tp->link_status = LNK_AUTONEG; - } else if ((val & BMSR_LSTATUS) && tp->link_status != LNK_ON) { - /* Rejoice ! */ - struct { - int val; - u32 ctl; - const char *msg; - } reg31[] = { - { LPA_1000FULL, 0x07000c00 | 0x00001000, - "1000 Mbps Full Duplex" }, - { LPA_1000HALF, 0x07000c00, - "1000 Mbps Half Duplex" }, - { LPA_100FULL, 0x04000800 | 0x00001000, - "100 Mbps Full Duplex" }, - { LPA_100HALF, 0x04000800, - "100 Mbps Half Duplex" }, - { LPA_10FULL, 0x04000400 | 0x00001000, - "10 Mbps Full Duplex" }, - { LPA_10HALF, 0x04000400, - "10 Mbps Half Duplex" }, - { 0, 0x04000400, "unknown" } - }, *p = NULL; - u16 adv, autoexp, gigadv, gigrec; - - val = mdio_read(ioaddr, phy_id, 0x1f); - netif_info(tp, link, dev, "mii ext = %04x\n", val); - - val = mdio_read(ioaddr, phy_id, MII_LPA); - adv = mdio_read(ioaddr, phy_id, MII_ADVERTISE); - autoexp = mdio_read(ioaddr, phy_id, MII_EXPANSION); - netif_info(tp, link, dev, "mii lpa=%04x adv=%04x exp=%04x\n", - val, adv, autoexp); - - if (val & LPA_NPAGE && autoexp & EXPANSION_NWAY) { - /* check for gigabit speed */ - gigadv = mdio_read(ioaddr, phy_id, MII_CTRL1000); - gigrec = mdio_read(ioaddr, phy_id, MII_STAT1000); - val = (gigadv & (gigrec >> 2)); - if (val & ADVERTISE_1000FULL) - p = reg31; - else if (val & ADVERTISE_1000HALF) - p = reg31 + 1; - } - if (!p) { - val &= adv; - - for (p = reg31; p->val; p++) { - if ((val & p->val) == p->val) - break; - } - } - - p->ctl |= SIS_R32(StationControl) & ~0x0f001c00; - - if ((tp->features & F_HAS_RGMII) && - (tp->features & F_PHY_BCM5461)) { - // Set Tx Delay in RGMII mode. - mdio_write(ioaddr, phy_id, 0x18, 0xf1c7); - udelay(200); - mdio_write(ioaddr, phy_id, 0x1c, 0x8c00); - p->ctl |= 0x03000000; - } - - SIS_W32(StationControl, p->ctl); - - if (tp->features & F_HAS_RGMII) { - SIS_W32(RGDelay, 0x0441); - SIS_W32(RGDelay, 0x0440); - } - - tp->negotiated_lpa = p->val; - - netif_info(tp, link, dev, "link on %s mode\n", p->msg); - netif_carrier_on(dev); - tp->link_status = LNK_ON; - } else if (!(val & BMSR_LSTATUS) && tp->link_status != LNK_AUTONEG) - tp->link_status = LNK_OFF; - mod_timer(&tp->timer, jiffies + SIS190_PHY_TIMEOUT); - -out_unlock: - rtnl_unlock(); -} - -static void sis190_phy_timer(unsigned long __opaque) -{ - struct net_device *dev = (struct net_device *)__opaque; - struct sis190_private *tp = netdev_priv(dev); - - if (likely(netif_running(dev))) - schedule_work(&tp->phy_task); -} - -static inline void sis190_delete_timer(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - - del_timer_sync(&tp->timer); -} - -static inline void sis190_request_timer(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - struct timer_list *timer = &tp->timer; - - init_timer(timer); - timer->expires = jiffies + SIS190_PHY_TIMEOUT; - timer->data = (unsigned long)dev; - timer->function = sis190_phy_timer; - add_timer(timer); -} - -static void sis190_set_rxbufsize(struct sis190_private *tp, - struct net_device *dev) -{ - unsigned int mtu = dev->mtu; - - tp->rx_buf_sz = (mtu > RX_BUF_SIZE) ? mtu + ETH_HLEN + 8 : RX_BUF_SIZE; - /* RxDesc->size has a licence to kill the lower bits */ - if (tp->rx_buf_sz & 0x07) { - tp->rx_buf_sz += 8; - tp->rx_buf_sz &= RX_BUF_MASK; - } -} - -static int sis190_open(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - struct pci_dev *pdev = tp->pci_dev; - int rc = -ENOMEM; - - sis190_set_rxbufsize(tp, dev); - - /* - * Rx and Tx descriptors need 256 bytes alignment. - * pci_alloc_consistent() guarantees a stronger alignment. - */ - tp->TxDescRing = pci_alloc_consistent(pdev, TX_RING_BYTES, &tp->tx_dma); - if (!tp->TxDescRing) - goto out; - - tp->RxDescRing = pci_alloc_consistent(pdev, RX_RING_BYTES, &tp->rx_dma); - if (!tp->RxDescRing) - goto err_free_tx_0; - - rc = sis190_init_ring(dev); - if (rc < 0) - goto err_free_rx_1; - - sis190_request_timer(dev); - - rc = request_irq(dev->irq, sis190_interrupt, IRQF_SHARED, dev->name, dev); - if (rc < 0) - goto err_release_timer_2; - - sis190_hw_start(dev); -out: - return rc; - -err_release_timer_2: - sis190_delete_timer(dev); - sis190_rx_clear(tp); -err_free_rx_1: - pci_free_consistent(tp->pci_dev, RX_RING_BYTES, tp->RxDescRing, - tp->rx_dma); -err_free_tx_0: - pci_free_consistent(tp->pci_dev, TX_RING_BYTES, tp->TxDescRing, - tp->tx_dma); - goto out; -} - -static void sis190_tx_clear(struct sis190_private *tp) -{ - unsigned int i; - - for (i = 0; i < NUM_TX_DESC; i++) { - struct sk_buff *skb = tp->Tx_skbuff[i]; - - if (!skb) - continue; - - sis190_unmap_tx_skb(tp->pci_dev, skb, tp->TxDescRing + i); - tp->Tx_skbuff[i] = NULL; - dev_kfree_skb(skb); - - tp->dev->stats.tx_dropped++; - } - tp->cur_tx = tp->dirty_tx = 0; -} - -static void sis190_down(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - unsigned int poll_locked = 0; - - sis190_delete_timer(dev); - - netif_stop_queue(dev); - - do { - spin_lock_irq(&tp->lock); - - sis190_asic_down(ioaddr); - - spin_unlock_irq(&tp->lock); - - synchronize_irq(dev->irq); - - if (!poll_locked) - poll_locked++; - - synchronize_sched(); - - } while (SIS_R32(IntrMask)); - - sis190_tx_clear(tp); - sis190_rx_clear(tp); -} - -static int sis190_close(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - struct pci_dev *pdev = tp->pci_dev; - - sis190_down(dev); - - free_irq(dev->irq, dev); - - pci_free_consistent(pdev, TX_RING_BYTES, tp->TxDescRing, tp->tx_dma); - pci_free_consistent(pdev, RX_RING_BYTES, tp->RxDescRing, tp->rx_dma); - - tp->TxDescRing = NULL; - tp->RxDescRing = NULL; - - return 0; -} - -static netdev_tx_t sis190_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - u32 len, entry, dirty_tx; - struct TxDesc *desc; - dma_addr_t mapping; - - if (unlikely(skb->len < ETH_ZLEN)) { - if (skb_padto(skb, ETH_ZLEN)) { - dev->stats.tx_dropped++; - goto out; - } - len = ETH_ZLEN; - } else { - len = skb->len; - } - - entry = tp->cur_tx % NUM_TX_DESC; - desc = tp->TxDescRing + entry; - - if (unlikely(le32_to_cpu(desc->status) & OWNbit)) { - netif_stop_queue(dev); - netif_err(tp, tx_err, dev, - "BUG! Tx Ring full when queue awake!\n"); - return NETDEV_TX_BUSY; - } - - mapping = pci_map_single(tp->pci_dev, skb->data, len, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(tp->pci_dev, mapping)) { - netif_err(tp, tx_err, dev, - "PCI mapping failed, dropping packet"); - return NETDEV_TX_BUSY; - } - - tp->Tx_skbuff[entry] = skb; - - desc->PSize = cpu_to_le32(len); - desc->addr = cpu_to_le32(mapping); - - desc->size = cpu_to_le32(len); - if (entry == (NUM_TX_DESC - 1)) - desc->size |= cpu_to_le32(RingEnd); - - wmb(); - - desc->status = cpu_to_le32(OWNbit | INTbit | DEFbit | CRCbit | PADbit); - if (tp->negotiated_lpa & (LPA_1000HALF | LPA_100HALF | LPA_10HALF)) { - /* Half Duplex */ - desc->status |= cpu_to_le32(COLEN | CRSEN | BKFEN); - if (tp->negotiated_lpa & (LPA_1000HALF | LPA_1000FULL)) - desc->status |= cpu_to_le32(EXTEN | BSTEN); /* gigabit HD */ - } - - tp->cur_tx++; - - smp_wmb(); - - SIS_W32(TxControl, 0x1a00 | CmdReset | CmdTxEnb); - - dirty_tx = tp->dirty_tx; - if ((tp->cur_tx - NUM_TX_DESC) == dirty_tx) { - netif_stop_queue(dev); - smp_rmb(); - if (dirty_tx != tp->dirty_tx) - netif_wake_queue(dev); - } -out: - return NETDEV_TX_OK; -} - -static void sis190_free_phy(struct list_head *first_phy) -{ - struct sis190_phy *cur, *next; - - list_for_each_entry_safe(cur, next, first_phy, list) { - kfree(cur); - } -} - -/** - * sis190_default_phy - Select default PHY for sis190 mac. - * @dev: the net device to probe for - * - * Select first detected PHY with link as default. - * If no one is link on, select PHY whose types is HOME as default. - * If HOME doesn't exist, select LAN. - */ -static u16 sis190_default_phy(struct net_device *dev) -{ - struct sis190_phy *phy, *phy_home, *phy_default, *phy_lan; - struct sis190_private *tp = netdev_priv(dev); - struct mii_if_info *mii_if = &tp->mii_if; - void __iomem *ioaddr = tp->mmio_addr; - u16 status; - - phy_home = phy_default = phy_lan = NULL; - - list_for_each_entry(phy, &tp->first_phy, list) { - status = mdio_read_latched(ioaddr, phy->phy_id, MII_BMSR); - - // Link ON & Not select default PHY & not ghost PHY. - if ((status & BMSR_LSTATUS) && - !phy_default && - (phy->type != UNKNOWN)) { - phy_default = phy; - } else { - status = mdio_read(ioaddr, phy->phy_id, MII_BMCR); - mdio_write(ioaddr, phy->phy_id, MII_BMCR, - status | BMCR_ANENABLE | BMCR_ISOLATE); - if (phy->type == HOME) - phy_home = phy; - else if (phy->type == LAN) - phy_lan = phy; - } - } - - if (!phy_default) { - if (phy_home) - phy_default = phy_home; - else if (phy_lan) - phy_default = phy_lan; - else - phy_default = list_first_entry(&tp->first_phy, - struct sis190_phy, list); - } - - if (mii_if->phy_id != phy_default->phy_id) { - mii_if->phy_id = phy_default->phy_id; - if (netif_msg_probe(tp)) - pr_info("%s: Using transceiver at address %d as default\n", - pci_name(tp->pci_dev), mii_if->phy_id); - } - - status = mdio_read(ioaddr, mii_if->phy_id, MII_BMCR); - status &= (~BMCR_ISOLATE); - - mdio_write(ioaddr, mii_if->phy_id, MII_BMCR, status); - status = mdio_read_latched(ioaddr, mii_if->phy_id, MII_BMSR); - - return status; -} - -static void sis190_init_phy(struct net_device *dev, struct sis190_private *tp, - struct sis190_phy *phy, unsigned int phy_id, - u16 mii_status) -{ - void __iomem *ioaddr = tp->mmio_addr; - struct mii_chip_info *p; - - INIT_LIST_HEAD(&phy->list); - phy->status = mii_status; - phy->phy_id = phy_id; - - phy->id[0] = mdio_read(ioaddr, phy_id, MII_PHYSID1); - phy->id[1] = mdio_read(ioaddr, phy_id, MII_PHYSID2); - - for (p = mii_chip_table; p->type; p++) { - if ((p->id[0] == phy->id[0]) && - (p->id[1] == (phy->id[1] & 0xfff0))) { - break; - } - } - - if (p->id[1]) { - phy->type = (p->type == MIX) ? - ((mii_status & (BMSR_100FULL | BMSR_100HALF)) ? - LAN : HOME) : p->type; - tp->features |= p->feature; - if (netif_msg_probe(tp)) - pr_info("%s: %s transceiver at address %d\n", - pci_name(tp->pci_dev), p->name, phy_id); - } else { - phy->type = UNKNOWN; - if (netif_msg_probe(tp)) - pr_info("%s: unknown PHY 0x%x:0x%x transceiver at address %d\n", - pci_name(tp->pci_dev), - phy->id[0], (phy->id[1] & 0xfff0), phy_id); - } -} - -static void sis190_mii_probe_88e1111_fixup(struct sis190_private *tp) -{ - if (tp->features & F_PHY_88E1111) { - void __iomem *ioaddr = tp->mmio_addr; - int phy_id = tp->mii_if.phy_id; - u16 reg[2][2] = { - { 0x808b, 0x0ce1 }, - { 0x808f, 0x0c60 } - }, *p; - - p = (tp->features & F_HAS_RGMII) ? reg[0] : reg[1]; - - mdio_write(ioaddr, phy_id, 0x1b, p[0]); - udelay(200); - mdio_write(ioaddr, phy_id, 0x14, p[1]); - udelay(200); - } -} - -/** - * sis190_mii_probe - Probe MII PHY for sis190 - * @dev: the net device to probe for - * - * Search for total of 32 possible mii phy addresses. - * Identify and set current phy if found one, - * return error if it failed to found. - */ -static int __devinit sis190_mii_probe(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - struct mii_if_info *mii_if = &tp->mii_if; - void __iomem *ioaddr = tp->mmio_addr; - int phy_id; - int rc = 0; - - INIT_LIST_HEAD(&tp->first_phy); - - for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) { - struct sis190_phy *phy; - u16 status; - - status = mdio_read_latched(ioaddr, phy_id, MII_BMSR); - - // Try next mii if the current one is not accessible. - if (status == 0xffff || status == 0x0000) - continue; - - phy = kmalloc(sizeof(*phy), GFP_KERNEL); - if (!phy) { - sis190_free_phy(&tp->first_phy); - rc = -ENOMEM; - goto out; - } - - sis190_init_phy(dev, tp, phy, phy_id, status); - - list_add(&tp->first_phy, &phy->list); - } - - if (list_empty(&tp->first_phy)) { - if (netif_msg_probe(tp)) - pr_info("%s: No MII transceivers found!\n", - pci_name(tp->pci_dev)); - rc = -EIO; - goto out; - } - - /* Select default PHY for mac */ - sis190_default_phy(dev); - - sis190_mii_probe_88e1111_fixup(tp); - - mii_if->dev = dev; - mii_if->mdio_read = __mdio_read; - mii_if->mdio_write = __mdio_write; - mii_if->phy_id_mask = PHY_ID_ANY; - mii_if->reg_num_mask = MII_REG_ANY; -out: - return rc; -} - -static void sis190_mii_remove(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - - sis190_free_phy(&tp->first_phy); -} - -static void sis190_release_board(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct sis190_private *tp = netdev_priv(dev); - - iounmap(tp->mmio_addr); - pci_release_regions(pdev); - pci_disable_device(pdev); - free_netdev(dev); -} - -static struct net_device * __devinit sis190_init_board(struct pci_dev *pdev) -{ - struct sis190_private *tp; - struct net_device *dev; - void __iomem *ioaddr; - int rc; - - dev = alloc_etherdev(sizeof(*tp)); - if (!dev) { - if (netif_msg_drv(&debug)) - pr_err("unable to alloc new ethernet\n"); - rc = -ENOMEM; - goto err_out_0; - } - - SET_NETDEV_DEV(dev, &pdev->dev); - - tp = netdev_priv(dev); - tp->dev = dev; - tp->msg_enable = netif_msg_init(debug.msg_enable, SIS190_MSG_DEFAULT); - - rc = pci_enable_device(pdev); - if (rc < 0) { - if (netif_msg_probe(tp)) - pr_err("%s: enable failure\n", pci_name(pdev)); - goto err_free_dev_1; - } - - rc = -ENODEV; - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - if (netif_msg_probe(tp)) - pr_err("%s: region #0 is no MMIO resource\n", - pci_name(pdev)); - goto err_pci_disable_2; - } - if (pci_resource_len(pdev, 0) < SIS190_REGS_SIZE) { - if (netif_msg_probe(tp)) - pr_err("%s: invalid PCI region size(s)\n", - pci_name(pdev)); - goto err_pci_disable_2; - } - - rc = pci_request_regions(pdev, DRV_NAME); - if (rc < 0) { - if (netif_msg_probe(tp)) - pr_err("%s: could not request regions\n", - pci_name(pdev)); - goto err_pci_disable_2; - } - - rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); - if (rc < 0) { - if (netif_msg_probe(tp)) - pr_err("%s: DMA configuration failed\n", - pci_name(pdev)); - goto err_free_res_3; - } - - pci_set_master(pdev); - - ioaddr = ioremap(pci_resource_start(pdev, 0), SIS190_REGS_SIZE); - if (!ioaddr) { - if (netif_msg_probe(tp)) - pr_err("%s: cannot remap MMIO, aborting\n", - pci_name(pdev)); - rc = -EIO; - goto err_free_res_3; - } - - tp->pci_dev = pdev; - tp->mmio_addr = ioaddr; - tp->link_status = LNK_OFF; - - sis190_irq_mask_and_ack(ioaddr); - - sis190_soft_reset(ioaddr); -out: - return dev; - -err_free_res_3: - pci_release_regions(pdev); -err_pci_disable_2: - pci_disable_device(pdev); -err_free_dev_1: - free_netdev(dev); -err_out_0: - dev = ERR_PTR(rc); - goto out; -} - -static void sis190_tx_timeout(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - u8 tmp8; - - /* Disable Tx, if not already */ - tmp8 = SIS_R8(TxControl); - if (tmp8 & CmdTxEnb) - SIS_W8(TxControl, tmp8 & ~CmdTxEnb); - - netif_info(tp, tx_err, dev, "Transmit timeout, status %08x %08x\n", - SIS_R32(TxControl), SIS_R32(TxSts)); - - /* Disable interrupts by clearing the interrupt mask. */ - SIS_W32(IntrMask, 0x0000); - - /* Stop a shared interrupt from scavenging while we are. */ - spin_lock_irq(&tp->lock); - sis190_tx_clear(tp); - spin_unlock_irq(&tp->lock); - - /* ...and finally, reset everything. */ - sis190_hw_start(dev); - - netif_wake_queue(dev); -} - -static void sis190_set_rgmii(struct sis190_private *tp, u8 reg) -{ - tp->features |= (reg & 0x80) ? F_HAS_RGMII : 0; -} - -static int __devinit sis190_get_mac_addr_from_eeprom(struct pci_dev *pdev, - struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - u16 sig; - int i; - - if (netif_msg_probe(tp)) - pr_info("%s: Read MAC address from EEPROM\n", pci_name(pdev)); - - /* Check to see if there is a sane EEPROM */ - sig = (u16) sis190_read_eeprom(ioaddr, EEPROMSignature); - - if ((sig == 0xffff) || (sig == 0x0000)) { - if (netif_msg_probe(tp)) - pr_info("%s: Error EEPROM read %x\n", - pci_name(pdev), sig); - return -EIO; - } - - /* Get MAC address from EEPROM */ - for (i = 0; i < MAC_ADDR_LEN / 2; i++) { - u16 w = sis190_read_eeprom(ioaddr, EEPROMMACAddr + i); - - ((__le16 *)dev->dev_addr)[i] = cpu_to_le16(w); - } - - sis190_set_rgmii(tp, sis190_read_eeprom(ioaddr, EEPROMInfo)); - - return 0; -} - -/** - * sis190_get_mac_addr_from_apc - Get MAC address for SiS96x model - * @pdev: PCI device - * @dev: network device to get address for - * - * SiS96x model, use APC CMOS RAM to store MAC address. - * APC CMOS RAM is accessed through ISA bridge. - * MAC address is read into @net_dev->dev_addr. - */ -static int __devinit sis190_get_mac_addr_from_apc(struct pci_dev *pdev, - struct net_device *dev) -{ - static const u16 __devinitdata ids[] = { 0x0965, 0x0966, 0x0968 }; - struct sis190_private *tp = netdev_priv(dev); - struct pci_dev *isa_bridge; - u8 reg, tmp8; - unsigned int i; - - if (netif_msg_probe(tp)) - pr_info("%s: Read MAC address from APC\n", pci_name(pdev)); - - for (i = 0; i < ARRAY_SIZE(ids); i++) { - isa_bridge = pci_get_device(PCI_VENDOR_ID_SI, ids[i], NULL); - if (isa_bridge) - break; - } - - if (!isa_bridge) { - if (netif_msg_probe(tp)) - pr_info("%s: Can not find ISA bridge\n", - pci_name(pdev)); - return -EIO; - } - - /* Enable port 78h & 79h to access APC Registers. */ - pci_read_config_byte(isa_bridge, 0x48, &tmp8); - reg = (tmp8 & ~0x02); - pci_write_config_byte(isa_bridge, 0x48, reg); - udelay(50); - pci_read_config_byte(isa_bridge, 0x48, ®); - - for (i = 0; i < MAC_ADDR_LEN; i++) { - outb(0x9 + i, 0x78); - dev->dev_addr[i] = inb(0x79); - } - - outb(0x12, 0x78); - reg = inb(0x79); - - sis190_set_rgmii(tp, reg); - - /* Restore the value to ISA Bridge */ - pci_write_config_byte(isa_bridge, 0x48, tmp8); - pci_dev_put(isa_bridge); - - return 0; -} - -/** - * sis190_init_rxfilter - Initialize the Rx filter - * @dev: network device to initialize - * - * Set receive filter address to our MAC address - * and enable packet filtering. - */ -static inline void sis190_init_rxfilter(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - u16 ctl; - int i; - - ctl = SIS_R16(RxMacControl); - /* - * Disable packet filtering before setting filter. - * Note: SiS's driver writes 32 bits but RxMacControl is 16 bits - * only and followed by RxMacAddr (6 bytes). Strange. -- FR - */ - SIS_W16(RxMacControl, ctl & ~0x0f00); - - for (i = 0; i < MAC_ADDR_LEN; i++) - SIS_W8(RxMacAddr + i, dev->dev_addr[i]); - - SIS_W16(RxMacControl, ctl); - SIS_PCI_COMMIT(); -} - -static int __devinit sis190_get_mac_addr(struct pci_dev *pdev, - struct net_device *dev) -{ - int rc; - - rc = sis190_get_mac_addr_from_eeprom(pdev, dev); - if (rc < 0) { - u8 reg; - - pci_read_config_byte(pdev, 0x73, ®); - - if (reg & 0x00000001) - rc = sis190_get_mac_addr_from_apc(pdev, dev); - } - return rc; -} - -static void sis190_set_speed_auto(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - void __iomem *ioaddr = tp->mmio_addr; - int phy_id = tp->mii_if.phy_id; - int val; - - netif_info(tp, link, dev, "Enabling Auto-negotiation\n"); - - val = mdio_read(ioaddr, phy_id, MII_ADVERTISE); - - // Enable 10/100 Full/Half Mode, leave MII_ADVERTISE bit4:0 - // unchanged. - mdio_write(ioaddr, phy_id, MII_ADVERTISE, (val & ADVERTISE_SLCT) | - ADVERTISE_100FULL | ADVERTISE_10FULL | - ADVERTISE_100HALF | ADVERTISE_10HALF); - - // Enable 1000 Full Mode. - mdio_write(ioaddr, phy_id, MII_CTRL1000, ADVERTISE_1000FULL); - - // Enable auto-negotiation and restart auto-negotiation. - mdio_write(ioaddr, phy_id, MII_BMCR, - BMCR_ANENABLE | BMCR_ANRESTART | BMCR_RESET); -} - -static int sis190_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct sis190_private *tp = netdev_priv(dev); - - return mii_ethtool_gset(&tp->mii_if, cmd); -} - -static int sis190_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct sis190_private *tp = netdev_priv(dev); - - return mii_ethtool_sset(&tp->mii_if, cmd); -} - -static void sis190_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - struct sis190_private *tp = netdev_priv(dev); - - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - strcpy(info->bus_info, pci_name(tp->pci_dev)); -} - -static int sis190_get_regs_len(struct net_device *dev) -{ - return SIS190_REGS_SIZE; -} - -static void sis190_get_regs(struct net_device *dev, struct ethtool_regs *regs, - void *p) -{ - struct sis190_private *tp = netdev_priv(dev); - unsigned long flags; - - if (regs->len > SIS190_REGS_SIZE) - regs->len = SIS190_REGS_SIZE; - - spin_lock_irqsave(&tp->lock, flags); - memcpy_fromio(p, tp->mmio_addr, regs->len); - spin_unlock_irqrestore(&tp->lock, flags); -} - -static int sis190_nway_reset(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - - return mii_nway_restart(&tp->mii_if); -} - -static u32 sis190_get_msglevel(struct net_device *dev) -{ - struct sis190_private *tp = netdev_priv(dev); - - return tp->msg_enable; -} - -static void sis190_set_msglevel(struct net_device *dev, u32 value) -{ - struct sis190_private *tp = netdev_priv(dev); - - tp->msg_enable = value; -} - -static const struct ethtool_ops sis190_ethtool_ops = { - .get_settings = sis190_get_settings, - .set_settings = sis190_set_settings, - .get_drvinfo = sis190_get_drvinfo, - .get_regs_len = sis190_get_regs_len, - .get_regs = sis190_get_regs, - .get_link = ethtool_op_get_link, - .get_msglevel = sis190_get_msglevel, - .set_msglevel = sis190_set_msglevel, - .nway_reset = sis190_nway_reset, -}; - -static int sis190_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct sis190_private *tp = netdev_priv(dev); - - return !netif_running(dev) ? -EINVAL : - generic_mii_ioctl(&tp->mii_if, if_mii(ifr), cmd, NULL); -} - -static int sis190_mac_addr(struct net_device *dev, void *p) -{ - int rc; - - rc = eth_mac_addr(dev, p); - if (!rc) - sis190_init_rxfilter(dev); - return rc; -} - -static const struct net_device_ops sis190_netdev_ops = { - .ndo_open = sis190_open, - .ndo_stop = sis190_close, - .ndo_do_ioctl = sis190_ioctl, - .ndo_start_xmit = sis190_start_xmit, - .ndo_tx_timeout = sis190_tx_timeout, - .ndo_set_multicast_list = sis190_set_rx_mode, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = sis190_mac_addr, - .ndo_validate_addr = eth_validate_addr, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = sis190_netpoll, -#endif -}; - -static int __devinit sis190_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - static int printed_version = 0; - struct sis190_private *tp; - struct net_device *dev; - void __iomem *ioaddr; - int rc; - - if (!printed_version) { - if (netif_msg_drv(&debug)) - pr_info(SIS190_DRIVER_NAME " loaded\n"); - printed_version = 1; - } - - dev = sis190_init_board(pdev); - if (IS_ERR(dev)) { - rc = PTR_ERR(dev); - goto out; - } - - pci_set_drvdata(pdev, dev); - - tp = netdev_priv(dev); - ioaddr = tp->mmio_addr; - - rc = sis190_get_mac_addr(pdev, dev); - if (rc < 0) - goto err_release_board; - - sis190_init_rxfilter(dev); - - INIT_WORK(&tp->phy_task, sis190_phy_task); - - dev->netdev_ops = &sis190_netdev_ops; - - SET_ETHTOOL_OPS(dev, &sis190_ethtool_ops); - dev->irq = pdev->irq; - dev->base_addr = (unsigned long) 0xdead; - dev->watchdog_timeo = SIS190_TX_TIMEOUT; - - spin_lock_init(&tp->lock); - - rc = sis190_mii_probe(dev); - if (rc < 0) - goto err_release_board; - - rc = register_netdev(dev); - if (rc < 0) - goto err_remove_mii; - - if (netif_msg_probe(tp)) { - netdev_info(dev, "%s: %s at %p (IRQ: %d), %pM\n", - pci_name(pdev), - sis_chip_info[ent->driver_data].name, - ioaddr, dev->irq, dev->dev_addr); - netdev_info(dev, "%s mode.\n", - (tp->features & F_HAS_RGMII) ? "RGMII" : "GMII"); - } - - netif_carrier_off(dev); - - sis190_set_speed_auto(dev); -out: - return rc; - -err_remove_mii: - sis190_mii_remove(dev); -err_release_board: - sis190_release_board(pdev); - goto out; -} - -static void __devexit sis190_remove_one(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct sis190_private *tp = netdev_priv(dev); - - sis190_mii_remove(dev); - cancel_work_sync(&tp->phy_task); - unregister_netdev(dev); - sis190_release_board(pdev); - pci_set_drvdata(pdev, NULL); -} - -static struct pci_driver sis190_pci_driver = { - .name = DRV_NAME, - .id_table = sis190_pci_tbl, - .probe = sis190_init_one, - .remove = __devexit_p(sis190_remove_one), -}; - -static int __init sis190_init_module(void) -{ - return pci_register_driver(&sis190_pci_driver); -} - -static void __exit sis190_cleanup_module(void) -{ - pci_unregister_driver(&sis190_pci_driver); -} - -module_init(sis190_init_module); -module_exit(sis190_cleanup_module); |