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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-06-13 08:43:49 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-08-12 03:40:44 -0700
commit8c7de408fd2caa11b8b3a1ed8a1b141ce127ad4e (patch)
tree19886abfa361eebc0113143263e593909b88b259 /drivers/net/sis190.c
parent4c78893b3d107e2a053c8f51c526510857c09858 (diff)
downloadop-kernel-dev-8c7de408fd2caa11b8b3a1ed8a1b141ce127ad4e.zip
op-kernel-dev-8c7de408fd2caa11b8b3a1ed8a1b141ce127ad4e.tar.gz
sis*: Move the Silicon Integrated Systems (SiS) drivers
Move the SiS drivers into drivers/net/ethernet/sis/ and make the necessary Kconfig and Makefile changes CC: Daniele Venzano <venza@brownhat.org> CC: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/sis190.c')
-rw-r--r--drivers/net/sis190.c1956
1 files changed, 0 insertions, 1956 deletions
diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c
deleted file mode 100644
index 3c0f131..0000000
--- 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, &reg);
-
- 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, &reg);
-
- 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);
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