diff options
Diffstat (limited to 'drivers/sk98lin/skge.c')
| -rw-r--r-- | drivers/sk98lin/skge.c | 4870 |
1 files changed, 4870 insertions, 0 deletions
diff --git a/drivers/sk98lin/skge.c b/drivers/sk98lin/skge.c new file mode 100644 index 0000000000..49ef8b310a --- /dev/null +++ b/drivers/sk98lin/skge.c @@ -0,0 +1,4870 @@ +/****************************************************************************** + * + * Name: skge.c + * Project: GEnesis, PCI Gigabit Ethernet Adapter + * Version: $Revision: 1.46 $ + * Date: $Date: 2003/02/25 14:16:36 $ + * Purpose: The main driver source module + * + ******************************************************************************/ + +/****************************************************************************** + * + * (C)Copyright 1998-2003 SysKonnect GmbH. + * + * Driver for SysKonnect Gigabit Ethernet Server Adapters: + * + * SK-9871 (single link 1000Base-ZX) + * SK-9872 (dual link 1000Base-ZX) + * SK-9861 (single link 1000Base-SX, VF45 Volition Plug) + * SK-9862 (dual link 1000Base-SX, VF45 Volition Plug) + * SK-9841 (single link 1000Base-LX) + * SK-9842 (dual link 1000Base-LX) + * SK-9843 (single link 1000Base-SX) + * SK-9844 (dual link 1000Base-SX) + * SK-9821 (single link 1000Base-T) + * SK-9822 (dual link 1000Base-T) + * SK-9881 (single link 1000Base-SX V2 LC) + * SK-9871 (single link 1000Base-ZX V2) + * SK-9861 (single link 1000Base-SX V2, VF45 Volition Plug) + * SK-9841 (single link 1000Base-LX V2) + * SK-9843 (single link 1000Base-SX V2) + * SK-9821 (single link 1000Base-T V2) + * + * Created 10-Feb-1999, based on Linux' acenic.c, 3c59x.c and + * SysKonnects GEnesis Solaris driver + * Author: Christoph Goos (cgoos@syskonnect.de) + * Mirko Lindner (mlindner@syskonnect.de) + * + * Address all question to: linux@syskonnect.de + * + * The technical manual for the adapters is available from SysKonnect's + * web pages: www.syskonnect.com + * Goto "Support" and search Knowledge Base for "manual". + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * The information in this file is provided "AS IS" without warranty. + * + ******************************************************************************/ + +/****************************************************************************** + * + * History: + * + * $Log: skge.c,v $ + * Revision 1.46 2003/02/25 14:16:36 mlindner + * Fix: Copyright statement + * + * Revision 1.45 2003/02/25 13:25:55 mlindner + * Add: Performance improvements + * Add: Support for various vendors + * Fix: Init function + * + * Revision 1.44 2003/01/09 09:25:26 mlindner + * Fix: Remove useless init_module/cleanup_module forward declarations + * + * Revision 1.43 2002/11/29 08:42:41 mlindner + * Fix: Boot message + * + * Revision 1.42 2002/11/28 13:30:23 mlindner + * Add: New frame check + * + * Revision 1.41 2002/11/27 13:55:18 mlindner + * Fix: Drop wrong csum packets + * Fix: Initialize proc_entry after hw check + * + * Revision 1.40 2002/10/31 07:50:37 tschilli + * Function SkGeInitAssignRamToQueues() from common module inserted. + * Autonegotiation is set to ON for all adapters. + * LinkSpeedUsed is used in link up status report. + * Role parameter will show up for 1000 Mbps links only. + * GetConfiguration() inserted after init level 1 in SkGeChangeMtu(). + * All return values of SkGeInit() and SkGeInitPort() are checked. + * + * Revision 1.39 2002/10/02 12:56:05 mlindner + * Add: Support for Yukon + * Add: Support for ZEROCOPY, scatter-gather and hw checksum + * Add: New transmit ring function (use SG and TCP/UDP hardware checksumming) + * Add: New init function + * Add: Speed check and setup + * Add: Merge source for kernel 2.2.x and 2.4.x + * Add: Opcode check for tcp + * Add: Frame length check + * Fix: Transmit complete interrupt + * Fix: Interrupt moderation + * + * Revision 1.29.2.13 2002/01/14 12:44:52 mlindner + * Fix: Rlmt modes + * + * Revision 1.29.2.12 2001/12/07 12:06:18 mlindner + * Fix: malloc -> slab changes + * + * Revision 1.29.2.11 2001/12/06 15:19:20 mlindner + * Add: DMA attributes + * Fix: Module initialisation + * Fix: pci_map_single and pci_unmap_single replaced + * + * Revision 1.29.2.10 2001/12/06 09:56:50 mlindner + * Corrected some printk's + * + * Revision 1.29.2.9 2001/09/05 12:15:34 mlindner + * Add: LBFO Changes + * Fix: Counter Errors (Jumbo == to long errors) + * Fix: Changed pAC->PciDev declaration + * Fix: too short counters + * + * Revision 1.29.2.8 2001/06/25 12:10:44 mlindner + * fix: ReceiveIrq() changed. + * + * Revision 1.29.2.7 2001/06/25 08:07:05 mlindner + * fix: RLMT locking in ReceiveIrq() changed. + * + * Revision 1.29.2.6 2001/05/21 07:59:29 mlindner + * fix: MTU init problems + * + * Revision 1.29.2.5 2001/05/08 11:25:08 mlindner + * fix: removed VLAN error message + * + * Revision 1.29.2.4 2001/05/04 13:31:43 gklug + * fix: do not handle eth_copy on bad fragments received. + * + * Revision 1.29.2.3 2001/04/23 08:06:43 mlindner + * Fix: error handling + * + * Revision 1.29.2.2 2001/03/15 12:04:54 mlindner + * Fixed memory problem + * + * Revision 1.29.2.1 2001/03/12 16:41:44 mlindner + * add: procfs function + * add: dual-net function + * add: RLMT networks + * add: extended PNMI features + * + * Kernel 2.4.x specific: + * Revision 1.xx 2000/09/12 13:31:56 cgoos + * Fixed missign "dev=NULL in skge_probe. + * Added counting for jumbo frames (corrects error statistic). + * Removed VLAN tag check (enables VLAN support). + * + * Kernel 2.2.x specific: + * Revision 1.29 2000/02/21 13:31:56 cgoos + * Fixed "unused" warning for UltraSPARC change. + * + * Partially kernel 2.2.x specific: + * Revision 1.28 2000/02/21 10:32:36 cgoos + * Added fixes for UltraSPARC. + * Now printing RlmtMode and PrefPort setting at startup. + * Changed XmitFrame return value. + * Fixed rx checksum calculation for BIG ENDIAN systems. + * Fixed rx jumbo frames counted as ierrors. + * + * + * Revision 1.27 1999/11/25 09:06:28 cgoos + * Changed base_addr to unsigned long. + * + * Revision 1.26 1999/11/22 13:29:16 cgoos + * Changed license header to GPL. + * Changes for inclusion in linux kernel (2.2.13). + * Removed 2.0.x defines. + * Changed SkGeProbe to skge_probe. + * Added checks in SkGeIoctl. + * + * Revision 1.25 1999/10/07 14:47:52 cgoos + * Changed 984x to 98xx. + * + * Revision 1.24 1999/09/30 07:21:01 cgoos + * Removed SK_RLMT_SLOW_LOOKAHEAD option. + * Giving spanning tree packets also to OS now. + * + * Revision 1.23 1999/09/29 07:36:50 cgoos + * Changed assignment for IsBc/IsMc. + * + * Revision 1.22 1999/09/28 12:57:09 cgoos + * Added CheckQueue also to Single-Port-ISR. + * + * Revision 1.21 1999/09/28 12:42:41 cgoos + * Changed parameter strings for RlmtMode. + * + * Revision 1.20 1999/09/28 12:37:57 cgoos + * Added CheckQueue for fast delivery of RLMT frames. + * + * Revision 1.19 1999/09/16 07:57:25 cgoos + * Copperfield changes. + * + * Revision 1.18 1999/09/03 13:06:30 cgoos + * Fixed RlmtMode=CheckSeg bug: wrong DEV_KFREE_SKB in RLMT_SEND caused + * double allocated skb's. + * FrameStat in ReceiveIrq was accessed via wrong Rxd. + * Queue size for async. standby Tx queue was zero. + * FillRxLimit of 0 could cause problems with ReQueue, changed to 1. + * Removed debug output of checksum statistic. + * + * Revision 1.17 1999/08/11 13:55:27 cgoos + * Transmit descriptor polling was not reenabled after SkGePortInit. + * + * Revision 1.16 1999/07/27 15:17:29 cgoos + * Added some "\n" in output strings (removed while debuging...). + * + * Revision 1.15 1999/07/23 12:09:30 cgoos + * Performance optimization, rx checksumming, large frame support. + * + * Revision 1.14 1999/07/14 11:26:27 cgoos + * Removed Link LED settings (now in RLMT). + * Added status output at NET UP. + * Fixed SMP problems with Tx and SWITCH running in parallel. + * Fixed return code problem at RLMT_SEND event. + * + * Revision 1.13 1999/04/07 10:11:42 cgoos + * Fixed Single Port problems. + * Fixed Multi-Adapter problems. + * Always display startup string. + * + * Revision 1.12 1999/03/29 12:26:37 cgoos + * Reversed locking to fine granularity. + * Fixed skb double alloc problem (caused by incorrect xmit return code). + * Enhanced function descriptions. + * + * Revision 1.11 1999/03/15 13:10:51 cgoos + * Changed device identifier in output string to ethX. + * + * Revision 1.10 1999/03/15 12:12:34 cgoos + * Changed copyright notice. + * + * Revision 1.9 1999/03/15 12:10:17 cgoos + * Changed locking to one driver lock. + * Added check of SK_AC-size (for consistency with library). + * + * Revision 1.8 1999/03/08 11:44:02 cgoos + * Fixed missing dev->tbusy in SkGeXmit. + * Changed large frame (jumbo) buffer number. + * Added copying of short frames. + * + * Revision 1.7 1999/03/04 13:26:57 cgoos + * Fixed spinlock calls for SMP. + * + * Revision 1.6 1999/03/02 09:53:51 cgoos + * Added descriptor revertion for big endian machines. + * + * Revision 1.5 1999/03/01 08:50:59 cgoos + * Fixed SkGeChangeMtu. + * Fixed pci config space accesses. + * + * Revision 1.4 1999/02/18 15:48:44 cgoos + * Corrected some printk's. + * + * Revision 1.3 1999/02/18 12:45:55 cgoos + * Changed SK_MAX_CARD_PARAM to default 16 + * + * Revision 1.2 1999/02/18 10:55:32 cgoos + * Removed SkGeDrvTimeStamp function. + * Printing "ethX:" before adapter type at adapter init. + * + * + * 10-Feb-1999 cg Created, based on Linux' acenic.c, 3c59x.c and + * SysKonnects GEnesis Solaris driver + * + ******************************************************************************/ + +/****************************************************************************** + * + * Possible compiler options (#define xxx / -Dxxx): + * + * debugging can be enable by changing SK_DEBUG_CHKMOD and + * SK_DEBUG_CHKCAT in makefile (described there). + * + ******************************************************************************/ + +/****************************************************************************** + * + * Description: + * + * This is the main module of the Linux GE driver. + * + * All source files except skge.c, skdrv1st.h, skdrv2nd.h and sktypes.h + * are part of SysKonnect's COMMON MODULES for the SK-98xx adapters. + * Those are used for drivers on multiple OS', so some thing may seem + * unnecessary complicated on Linux. Please do not try to 'clean up' + * them without VERY good reasons, because this will make it more + * difficult to keep the Linux driver in synchronisation with the + * other versions. + * + * Include file hierarchy: + * + * <linux/module.h> + * + * "h/skdrv1st.h" + * <linux/version.h> + * <linux/types.h> + * <linux/kernel.h> + * <linux/string.h> + * <linux/errno.h> + * <linux/ioport.h> + * <linux/slab.h> + * <linux/interrupt.h> + * <linux/pci.h> + * <asm/byteorder.h> + * <asm/bitops.h> + * <asm/io.h> + * <linux/netdevice.h> + * <linux/etherdevice.h> + * <linux/skbuff.h> + * those three depending on kernel version used: + * <linux/bios32.h> + * <linux/init.h> + * <asm/uaccess.h> + * <net/checksum.h> + * + * "h/skerror.h" + * "h/skdebug.h" + * "h/sktypes.h" + * "h/lm80.h" + * "h/xmac_ii.h" + * + * "h/skdrv2nd.h" + * "h/skqueue.h" + * "h/skgehwt.h" + * "h/sktimer.h" + * "h/ski2c.h" + * "h/skgepnmi.h" + * "h/skvpd.h" + * "h/skgehw.h" + * "h/skgeinit.h" + * "h/skaddr.h" + * "h/skgesirq.h" + * "h/skcsum.h" + * "h/skrlmt.h" + * + ******************************************************************************/ + +#include "h/skversion.h" +#if 0 +#include <linux/module.h> +#include <linux/init.h> +#include <linux/proc_fs.h> +#endif +#include "h/skdrv1st.h" +#include "h/skdrv2nd.h" + + +/* defines ******************************************************************/ +/* for debuging on x86 only */ +/* #define BREAKPOINT() asm(" int $3"); */ + +/* use the scatter-gather functionality with sendfile() */ +#if 0 +#define SK_ZEROCOPY +#endif + +/* use of a transmit complete interrupt */ +#define USE_TX_COMPLETE + +/* use interrupt moderation (for tx complete only) */ +#define USE_INT_MOD +#define INTS_PER_SEC 1000 + +/* + * threshold for copying small receive frames + * set to 0 to avoid copying, set to 9001 to copy all frames + */ +#define SK_COPY_THRESHOLD 50 + +/* number of adapters that can be configured via command line params */ +#define SK_MAX_CARD_PARAM 16 + + +/* + * use those defines for a compile-in version of the driver instead + * of command line parameters + */ +// #define LINK_SPEED_A {"Auto", } +// #define LINK_SPEED_B {"Auto", } +// #define AUTO_NEG_A {"Sense", } +// #define AUTO_NEG_B {"Sense", } +// #define DUP_CAP_A {"Both", } +// #define DUP_CAP_B {"Both", } +// #define FLOW_CTRL_A {"SymOrRem", } +// #define FLOW_CTRL_B {"SymOrRem", } +// #define ROLE_A {"Auto", } +// #define ROLE_B {"Auto", } +// #define PREF_PORT {"A", } +// #define RLMT_MODE {"CheckLinkState", } + +#define DEV_KFREE_SKB(skb) dev_kfree_skb(skb) +#define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb) +#define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb) + +/* function prototypes ******************************************************/ +static void FreeResources(struct SK_NET_DEVICE *dev); +static int SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC); +static SK_BOOL BoardAllocMem(SK_AC *pAC); +static void BoardFreeMem(SK_AC *pAC); +static void BoardInitMem(SK_AC *pAC); +static void SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**, + int*, SK_BOOL); + +#if 0 +static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs); +static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs); +static int SkGeOpen(struct SK_NET_DEVICE *dev); +static int SkGeClose(struct SK_NET_DEVICE *dev); +static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev); +static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p); +static void SkGeSetRxMode(struct SK_NET_DEVICE *dev); +static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev); +static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd); +#else +void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs); +void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs); +int SkGeOpen(struct SK_NET_DEVICE *dev); +int SkGeClose(struct SK_NET_DEVICE *dev); +int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev); +#endif +static void GetConfiguration(SK_AC*); +static void ProductStr(SK_AC*); +static int XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*); +static void FreeTxDescriptors(SK_AC*pAC, TX_PORT*); +static void FillRxRing(SK_AC*, RX_PORT*); +static SK_BOOL FillRxDescriptor(SK_AC*, RX_PORT*); +#if 0 +static void ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL); +#else +void ReceiveIrq(SK_AC*, RX_PORT*, SK_BOOL); +#endif +static void ClearAndStartRx(SK_AC*, int); +static void ClearTxIrq(SK_AC*, int, int); +static void ClearRxRing(SK_AC*, RX_PORT*); +static void ClearTxRing(SK_AC*, TX_PORT*); +#if 0 +static void SetQueueSizes(SK_AC *pAC); + +static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int new_mtu); +#endif +static void PortReInitBmu(SK_AC*, int); +#if 0 +static int SkGeIocMib(DEV_NET*, unsigned int, int); +static int XmitFrameSG(SK_AC*, TX_PORT*, struct sk_buff*); +#endif + +/*Extern */ + +/* external Proc function */ +extern int proc_read( + char *buffer, + char **buffer_location, + off_t offset, + int buffer_length, + int *eof, + void *data); + +#ifdef DEBUG +static void DumpMsg(struct sk_buff*, char*); +static void DumpData(char*, int); +static void DumpLong(char*, int); +#endif +void dump_frag( SK_U8 *data, int length); + +/* global variables *********************************************************/ +#if 0 +static const char *BootString = BOOT_STRING; +#endif +struct SK_NET_DEVICE *SkGeRootDev = NULL; +static int probed __initdata = 0; + +/* local variables **********************************************************/ +static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}}; +static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480}; + + +/* local variables **********************************************************/ +const char SK_Root_Dir_entry[8]; + +#if 0 +static struct proc_dir_entry *pSkRootDir; +#endif + + +static struct pci_device_id supported[] = { + {PCI_VENDOR_ID_3COM, 0x1700}, + {PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE}, + {PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_GE_SA}, + {} +}; + + +/***************************************************************************** + * + * skge_probe - find all SK-98xx adapters + * + * Description: + * This function scans the PCI bus for SK-98xx adapters. Resources for + * each adapter are allocated and the adapter is brought into Init 1 + * state. + * + * Returns: + * 0, if everything is ok + * !=0, on error + */ +#if 0 +static int __init skge_probe (void) +#else +int skge_probe (struct eth_device ** ret_dev) +#endif +{ +#if 0 + int proc_root_initialized = 0; +#endif + int boards_found = 0; +#if 0 + int vendor_flag = SK_FALSE; +#endif + SK_AC *pAC; + DEV_NET *pNet = NULL; +#if 0 + struct proc_dir_entry *pProcFile; + struct pci_dev *pdev = NULL; + unsigned long base_address; +#else + u32 base_address; +#endif + struct SK_NET_DEVICE *dev = NULL; +#if 0 + SK_BOOL DeviceFound = SK_FALSE; +#endif + SK_BOOL BootStringCount = SK_FALSE; +#if 1 + pci_dev_t devno; +#endif + + if (probed) + return -ENODEV; + probed++; + + if (!pci_present()) /* is PCI support present? */ + return -ENODEV; + +#if 0 + while((pdev = pci_find_class(PCI_CLASS_NETWORK_ETHERNET << 8, pdev))) +#else + while((devno = pci_find_devices (supported, boards_found)) >= 0) +#endif + { + + dev = NULL; + pNet = NULL; + + +#if 0 + SK_PCI_ISCOMPLIANT(vendor_flag, pdev); + if (!vendor_flag) + continue; +#endif + +/* if ((pdev->vendor != PCI_VENDOR_ID_SYSKONNECT) && + ((pdev->device != PCI_DEVICE_ID_SYSKONNECT_GE) || + (pdev->device != PCI_DEVICE_ID_SYSKONNECT_YU))){ + continue; + } +*/ +#if 0 + /* Configure DMA attributes. */ + if (pci_set_dma_mask(pdev, (u64) 0xffffffffffffffff) && + pci_set_dma_mask(pdev, (u64) 0xffffffff)) + continue; +#endif + + +#if 0 + if ((dev = init_etherdev(dev, sizeof(DEV_NET))) == NULL) { + printk(KERN_ERR "Unable to allocate etherdev " + "structure!\n"); + break; + } +#else + dev = malloc (sizeof *dev); + memset(dev, 0, sizeof(*dev)); + dev->priv = malloc(sizeof(DEV_NET)); +#endif + + if (dev->priv == NULL) { + printk(KERN_ERR "Unable to allocate adapter " + "structure!\n"); + break; + } + + pNet = dev->priv; + pNet->pAC = kmalloc(sizeof(SK_AC), GFP_KERNEL); + if (pNet->pAC == NULL){ + kfree(dev->priv); + printk(KERN_ERR "Unable to allocate adapter " + "structure!\n"); + break; + } + + /* Print message */ + if (!BootStringCount) { + /* set display flag to TRUE so that */ + /* we only display this string ONCE */ + BootStringCount = SK_TRUE; +#ifdef SK98_INFO + printk("%s\n", BootString); +#endif + } + + memset(pNet->pAC, 0, sizeof(SK_AC)); + pAC = pNet->pAC; +#if 0 + pAC->PciDev = pdev; + pAC->PciDevId = pdev->device; + pAC->dev[0] = dev; + pAC->dev[1] = dev; +#else + pAC->PciDev = devno; + ret_dev[0] = pAC->dev[0] = dev; + ret_dev[1] = pAC->dev[1] = dev; +#endif + sprintf(pAC->Name, "SysKonnect SK-98xx"); + pAC->CheckQueue = SK_FALSE; + + pNet->Mtu = 1500; + pNet->Up = 0; +#if 0 + dev->irq = pdev->irq; + + dev->open = &SkGeOpen; + dev->stop = &SkGeClose; + dev->hard_start_xmit = &SkGeXmit; + dev->get_stats = &SkGeStats; + dev->set_multicast_list = &SkGeSetRxMode; + dev->set_mac_address = &SkGeSetMacAddr; + dev->do_ioctl = &SkGeIoctl; + dev->change_mtu = &SkGeChangeMtu; + dev->flags &= ~IFF_RUNNING; +#endif + +#ifdef SK_ZEROCOPY + if (pAC->GIni.GIChipId == CHIP_ID_YUKON) { + /* Use only if yukon hardware */ + /* SK and ZEROCOPY - fly baby... */ + dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; + } +#endif + +#if 0 + /* + * Dummy value. + */ + dev->base_addr = 42; + pci_set_master(pdev); + + pci_set_master(pdev); + base_address = pci_resource_start (pdev, 0); +#else + pci_write_config_dword(devno, + PCI_COMMAND, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + pci_read_config_dword (devno, PCI_BASE_ADDRESS_0, + &base_address); +#endif + +#ifdef SK_BIG_ENDIAN + /* + * On big endian machines, we use the adapter's aibility of + * reading the descriptors as big endian. + */ + { + SK_U32 our2; + SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2); + our2 |= PCI_REV_DESC; + SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2); + } +#endif + + /* + * Remap the regs into kernel space. + */ +#if 0 + pAC->IoBase = (char*)ioremap(base_address, 0x4000); +#else + pAC->IoBase = (char*)pci_mem_to_phys(devno, base_address); +#endif + + if (!pAC->IoBase){ + printk(KERN_ERR "%s: Unable to map I/O register, " + "SK 98xx No. %i will be disabled.\n", + dev->name, boards_found); + kfree(dev); + break; + } + + pAC->Index = boards_found; + if (SkGeBoardInit(dev, pAC)) { + FreeResources(dev); + kfree(dev); + continue; + } + +#if 0 + memcpy((caddr_t) &dev->dev_addr, + (caddr_t) &pAC->Addr.Net[0].CurrentMacAddress, 6); +#else + memcpy((caddr_t) &dev->enetaddr, + (caddr_t) &pAC->Addr.Net[0].CurrentMacAddress, 6); +#endif + +#if 0 + /* First adapter... Create proc and print message */ + if (!DeviceFound) { + DeviceFound = SK_TRUE; + SK_MEMCPY(&SK_Root_Dir_entry, BootString, + sizeof(SK_Root_Dir_entry) - 1); + + /*Create proc (directory)*/ + if(!proc_root_initialized) { + pSkRootDir = create_proc_entry(SK_Root_Dir_entry, + S_IFDIR | S_IWUSR | S_IRUGO | S_IXUGO, proc_net); + proc_root_initialized = 1; + } + + pSkRootDir->owner = THIS_MODULE; + } + + + + /* Create proc file */ + pProcFile = create_proc_entry(dev->name, + S_IFREG | S_IXUSR | S_IWGRP | S_IROTH, + pSkRootDir); + + + pProcFile->read_proc = proc_read; + pProcFile->write_proc = NULL; + pProcFile->nlink = 1; + pProcFile->size = sizeof(dev->name + 1); + pProcFile->data = (void *)pProcFile; +#endif + + pNet->PortNr = 0; + pNet->NetNr = 0; + +#ifdef SK_ZEROCOPY + if (pAC->GIni.GIChipId == CHIP_ID_YUKON) { + /* SG and ZEROCOPY - fly baby... */ + dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; + } +#endif + + boards_found++; + + /* More then one port found */ + if ((pAC->GIni.GIMacsFound == 2 ) && (pAC->RlmtNets == 2)) { +#if 0 + if ((dev = init_etherdev(NULL, sizeof(DEV_NET))) == 0) { + printk(KERN_ERR "Unable to allocate etherdev " + "structure!\n"); + break; + } +#else + dev = malloc (sizeof *dev); + memset(dev, 0, sizeof(*dev)); + dev->priv = malloc(sizeof(DEV_NET)); +#endif + + pAC->dev[1] = dev; + pNet = dev->priv; + pNet->PortNr = 1; + pNet->NetNr = 1; + pNet->pAC = pAC; + pNet->Mtu = 1500; + pNet->Up = 0; + +#if 0 + dev->open = &SkGeOpen; + dev->stop = &SkGeClose; + dev->hard_start_xmit = &SkGeXmit; + dev->get_stats = &SkGeStats; + dev->set_multicast_list = &SkGeSetRxMode; + dev->set_mac_address = &SkGeSetMacAddr; + dev->do_ioctl = &SkGeIoctl; + dev->change_mtu = &SkGeChangeMtu; + dev->flags &= ~IFF_RUNNING; +#endif + +#ifdef SK_ZEROCOPY + if (pAC->GIni.GIChipId == CHIP_ID_YUKON) { + /* SG and ZEROCOPY - fly baby... */ + dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; + } +#endif + +#if 0 + pProcFile = create_proc_entry(dev->name, + S_IFREG | S_IXUSR | S_IWGRP | S_IROTH, + pSkRootDir); + + + pProcFile->read_proc = proc_read; + pProcFile->write_proc = NULL; + pProcFile->nlink = 1; + pProcFile->size = sizeof(dev->name + 1); + pProcFile->data = (void *)pProcFile; +#endif + +#if 0 + memcpy((caddr_t) &dev->dev_addr, + (caddr_t) &pAC->Addr.Net[1].CurrentMacAddress, 6); +#else + memcpy((caddr_t) &dev->enetaddr, + (caddr_t) &pAC->Addr.Net[1].CurrentMacAddress, 6); +#endif + + printk("%s: %s\n", dev->name, pAC->DeviceStr); + printk(" PrefPort:B RlmtMode:Dual Check Link State\n"); + + } + + + /* Save the hardware revision */ + pAC->HWRevision = (((pAC->GIni.GIPciHwRev >> 4) & 0x0F)*10) + + (pAC->GIni.GIPciHwRev & 0x0F); + + /* + * This is bollocks, but we need to tell the net-init + * code that it shall go for the next device. + */ +#if 0 +#ifndef MODULE + dev->base_addr = 0; +#endif +#endif + } + + /* + * If we're at this point we're going through skge_probe() for + * the first time. Return success (0) if we've initialized 1 + * or more boards. Otherwise, return failure (-ENODEV). + */ + + return boards_found; +} /* skge_probe */ + + +/***************************************************************************** + * + * FreeResources - release resources allocated for adapter + * + * Description: + * This function releases the IRQ, unmaps the IO and + * frees the desriptor ring. + * + * Returns: N/A + * + */ +static void FreeResources(struct SK_NET_DEVICE *dev) +{ +SK_U32 AllocFlag; +DEV_NET *pNet; +SK_AC *pAC; + + if (dev->priv) { + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + AllocFlag = pAC->AllocFlag; +#if 0 + if (AllocFlag & SK_ALLOC_IRQ) { + free_irq(dev->irq, dev); + } + if (pAC->IoBase) { + iounmap(pAC->IoBase); + } +#endif + if (pAC->pDescrMem) { + BoardFreeMem(pAC); + } + } + +} /* FreeResources */ + +#if 0 +MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>"); +MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver"); +MODULE_LICENSE("GPL"); +MODULE_PARM(Speed_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(Speed_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(AutoNeg_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(AutoNeg_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(DupCap_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(DupCap_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(FlowCtrl_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(FlowCtrl_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(Role_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(Role_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(PrefPort, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +MODULE_PARM(RlmtMode, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s"); +/* not used, just there because every driver should have them: */ +MODULE_PARM(options, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "i"); +MODULE_PARM(debug, "i"); +#endif + + +#ifdef LINK_SPEED_A +static char *Speed_A[SK_MAX_CARD_PARAM] = LINK_SPEED_A; +#else +static char *Speed_A[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef LINK_SPEED_B +static char *Speed_B[SK_MAX_CARD_PARAM] = LINK_SPEED_B; +#else +static char *Speed_B[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef AUTO_NEG_A +static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A; +#else +static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef DUP_CAP_A +static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A; +#else +static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef FLOW_CTRL_A +static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A; +#else +static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef ROLE_A +static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A; +#else +static char *Role_A[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef AUTO_NEG_B +static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B; +#else +static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef DUP_CAP_B +static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B; +#else +static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef FLOW_CTRL_B +static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B; +#else +static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef ROLE_B +static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B; +#else +static char *Role_B[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef PREF_PORT +static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT; +#else +static char *PrefPort[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#ifdef RLMT_MODE +static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE; +#else +static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", }; +#endif + +#if 0 +static int debug = 0; /* not used */ +static int options[SK_MAX_CARD_PARAM] = {0, }; /* not used */ + + +/***************************************************************************** + * + * skge_init_module - module initialization function + * + * Description: + * Very simple, only call skge_probe and return approriate result. + * + * Returns: + * 0, if everything is ok + * !=0, on error + */ +static int __init skge_init_module(void) +{ + int cards; + SkGeRootDev = NULL; + + /* just to avoid warnings ... */ + debug = 0; + options[0] = 0; + + cards = skge_probe(); + if (cards == 0) { + printk("sk98lin: No adapter found.\n"); + } + return cards ? 0 : -ENODEV; +} /* skge_init_module */ + + +/***************************************************************************** + * + * skge_cleanup_module - module unload function + * + * Description: + * Disable adapter if it is still running, free resources, + * free device struct. + * + * Returns: N/A + */ +static void __exit skge_cleanup_module(void) +{ +DEV_NET *pNet; +SK_AC *pAC; +struct SK_NET_DEVICE *next; +unsigned long Flags; +SK_EVPARA EvPara; + + while (SkGeRootDev) { + pNet = (DEV_NET*) SkGeRootDev->priv; + pAC = pNet->pAC; + next = pAC->Next; + + netif_stop_queue(SkGeRootDev); + SkGeYellowLED(pAC, pAC->IoBase, 0); + + if(pAC->BoardLevel == 2) { + /* board is still alive */ + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + EvPara.Para32[0] = 0; + EvPara.Para32[1] = -1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara); + EvPara.Para32[0] = 1; + EvPara.Para32[1] = -1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara); + SkEventDispatcher(pAC, pAC->IoBase); + /* disable interrupts */ + SK_OUT32(pAC->IoBase, B0_IMSK, 0); + SkGeDeInit(pAC, pAC->IoBase); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + pAC->BoardLevel = 0; + /* We do NOT check here, if IRQ was pending, of course*/ + } + + if(pAC->BoardLevel == 1) { + /* board is still alive */ + SkGeDeInit(pAC, pAC->IoBase); + pAC->BoardLevel = 0; + } + + if ((pAC->GIni.GIMacsFound == 2) && pAC->RlmtNets == 2){ + unregister_netdev(pAC->dev[1]); + kfree(pAC->dev[1]); + } + + FreeResources(SkGeRootDev); + + SkGeRootDev->get_stats = NULL; + /* + * otherwise unregister_netdev calls get_stats with + * invalid IO ... :-( + */ + unregister_netdev(SkGeRootDev); + kfree(SkGeRootDev); + kfree(pAC); + SkGeRootDev = next; + } + + /* clear proc-dir */ + remove_proc_entry(pSkRootDir->name, proc_net); + +} /* skge_cleanup_module */ + +module_init(skge_init_module); +module_exit(skge_cleanup_module); +#endif + + +/***************************************************************************** + * + * SkGeBoardInit - do level 0 and 1 initialization + * + * Description: + * This function prepares the board hardware for running. The desriptor + * ring is set up, the IRQ is allocated and the configuration settings + * are examined. + * + * Returns: + * 0, if everything is ok + * !=0, on error + */ +static int __init SkGeBoardInit(struct SK_NET_DEVICE *dev, SK_AC *pAC) +{ +short i; +unsigned long Flags; +char *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */ +char *VerStr = VER_STRING; +#if 0 +int Ret; /* return code of request_irq */ +#endif +SK_BOOL DualNet; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("IoBase: %08lX\n", (unsigned long)pAC->IoBase)); + for (i=0; i<SK_MAX_MACS; i++) { + pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0]; + pAC->TxPort[i][0].PortIndex = i; + pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i]; + pAC->RxPort[i].PortIndex = i; + } + + /* Initialize the mutexes */ + for (i=0; i<SK_MAX_MACS; i++) { + spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock); + spin_lock_init(&pAC->RxPort[i].RxDesRingLock); + } + spin_lock_init(&pAC->SlowPathLock); + + /* level 0 init common modules here */ + + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + /* Does a RESET on board ...*/ + if (SkGeInit(pAC, pAC->IoBase, 0) != 0) { + printk("HWInit (0) failed.\n"); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + return(-EAGAIN); + } + SkI2cInit( pAC, pAC->IoBase, 0); + SkEventInit(pAC, pAC->IoBase, 0); + SkPnmiInit( pAC, pAC->IoBase, 0); + SkAddrInit( pAC, pAC->IoBase, 0); + SkRlmtInit( pAC, pAC->IoBase, 0); + SkTimerInit(pAC, pAC->IoBase, 0); + + pAC->BoardLevel = 0; + pAC->RxBufSize = ETH_BUF_SIZE; + + SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString); + SK_PNMI_SET_DRIVER_VER(pAC, VerStr); + + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + + /* level 1 init common modules here (HW init) */ + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + if (SkGeInit(pAC, pAC->IoBase, 1) != 0) { + printk("HWInit (1) failed.\n"); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + return(-EAGAIN); + } + SkI2cInit( pAC, pAC->IoBase, 1); + SkEventInit(pAC, pAC->IoBase, 1); + SkPnmiInit( pAC, pAC->IoBase, 1); + SkAddrInit( pAC, pAC->IoBase, 1); + SkRlmtInit( pAC, pAC->IoBase, 1); + SkTimerInit(pAC, pAC->IoBase, 1); + + GetConfiguration(pAC); + if (pAC->RlmtNets == 2) { + pAC->GIni.GIPortUsage = SK_MUL_LINK; + } + + pAC->BoardLevel = 1; + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + +#if 0 + if (pAC->GIni.GIMacsFound == 2) { + Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev); + } else if (pAC->GIni.GIMacsFound == 1) { + Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, + pAC->Name, dev); + } else { + printk(KERN_WARNING "%s: Illegal number of ports: %d\n", + dev->name, pAC->GIni.GIMacsFound); + return -EAGAIN; + } + + if (Ret) { + printk(KERN_WARNING "%s: Requested IRQ %d is busy.\n", + dev->name, dev->irq); + return -EAGAIN; + } +#endif + pAC->AllocFlag |= SK_ALLOC_IRQ; + + /* Alloc memory for this board (Mem for RxD/TxD) : */ + if(!BoardAllocMem(pAC)) { + printk("No memory for descriptor rings.\n"); + return(-EAGAIN); + } + + SkCsSetReceiveFlags(pAC, + SKCS_PROTO_IP | SKCS_PROTO_TCP | SKCS_PROTO_UDP, + &pAC->CsOfs1, &pAC->CsOfs2, 0); + pAC->CsOfs = (pAC->CsOfs2 << 16) | pAC->CsOfs1; + + BoardInitMem(pAC); +#if 0 + SetQueueSizes(pAC); +#else + /* tschilling: New common function with minimum size check. */ + DualNet = SK_FALSE; + if (pAC->RlmtNets == 2) { + DualNet = SK_TRUE; + } + + if (SkGeInitAssignRamToQueues( + pAC, + pAC->ActivePort, + DualNet)) { + BoardFreeMem(pAC); + printk("SkGeInitAssignRamToQueues failed.\n"); + return(-EAGAIN); + } +#endif + + /* Print adapter specific string from vpd */ + ProductStr(pAC); +#ifdef SK98_INFO + printk("%s: %s\n", dev->name, pAC->DeviceStr); + + /* Print configuration settings */ + printk(" PrefPort:%c RlmtMode:%s\n", + 'A' + pAC->Rlmt.Net[0].Port[pAC->Rlmt.Net[0].PrefPort]->PortNumber, + (pAC->RlmtMode==0) ? "Check Link State" : + ((pAC->RlmtMode==1) ? "Check Link State" : + ((pAC->RlmtMode==3) ? "Check Local Port" : + ((pAC->RlmtMode==7) ? "Check Segmentation" : + ((pAC->RlmtMode==17) ? "Dual Check Link State" :"Error"))))); +#endif + + SkGeYellowLED(pAC, pAC->IoBase, 1); + + /* + * Register the device here + */ + pAC->Next = SkGeRootDev; + SkGeRootDev = dev; + + return (0); +} /* SkGeBoardInit */ + + +/***************************************************************************** + * + * BoardAllocMem - allocate the memory for the descriptor rings + * + * Description: + * This function allocates the memory for all descriptor rings. + * Each ring is aligned for the desriptor alignment and no ring + * has a 4 GByte boundary in it (because the upper 32 bit must + * be constant for all descriptiors in one rings). + * + * Returns: + * SK_TRUE, if all memory could be allocated + * SK_FALSE, if not + */ +static SK_BOOL BoardAllocMem( +SK_AC *pAC) +{ +caddr_t pDescrMem; /* pointer to descriptor memory area */ +size_t AllocLength; /* length of complete descriptor area */ +int i; /* loop counter */ +unsigned long BusAddr; + + + /* rings plus one for alignment (do not cross 4 GB boundary) */ + /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */ +#if (BITS_PER_LONG == 32) + AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8; +#else + AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + + RX_RING_SIZE + 8; +#endif + + pDescrMem = pci_alloc_consistent(pAC->PciDev, AllocLength, + &pAC->pDescrMemDMA); + + if (pDescrMem == NULL) { + return (SK_FALSE); + } + pAC->pDescrMem = pDescrMem; + BusAddr = (unsigned long) pAC->pDescrMemDMA; + + /* Descriptors need 8 byte alignment, and this is ensured + * by pci_alloc_consistent. + */ + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, + ("TX%d/A: pDescrMem: %lX, PhysDescrMem: %lX\n", + i, (unsigned long) pDescrMem, + BusAddr)); + pAC->TxPort[i][0].pTxDescrRing = pDescrMem; + pAC->TxPort[i][0].VTxDescrRing = BusAddr; + pDescrMem += TX_RING_SIZE; + BusAddr += TX_RING_SIZE; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, + ("RX%d: pDescrMem: %lX, PhysDescrMem: %lX\n", + i, (unsigned long) pDescrMem, + (unsigned long)BusAddr)); + pAC->RxPort[i].pRxDescrRing = pDescrMem; + pAC->RxPort[i].VRxDescrRing = BusAddr; + pDescrMem += RX_RING_SIZE; + BusAddr += RX_RING_SIZE; + } /* for */ + + return (SK_TRUE); +} /* BoardAllocMem */ + + +/**************************************************************************** + * + * BoardFreeMem - reverse of BoardAllocMem + * + * Description: + * Free all memory allocated in BoardAllocMem: adapter context, + * descriptor rings, locks. + * + * Returns: N/A + */ +static void BoardFreeMem( +SK_AC *pAC) +{ +size_t AllocLength; /* length of complete descriptor area */ + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("BoardFreeMem\n")); +#if (BITS_PER_LONG == 32) + AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8; +#else + AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + + RX_RING_SIZE + 8; +#endif + + pci_free_consistent(pAC->PciDev, AllocLength, + pAC->pDescrMem, pAC->pDescrMemDMA); + pAC->pDescrMem = NULL; +} /* BoardFreeMem */ + + +/***************************************************************************** + * + * BoardInitMem - initiate the descriptor rings + * + * Description: + * This function sets the descriptor rings up in memory. + * The adapter is initialized with the descriptor start addresses. + * + * Returns: N/A + */ +static void BoardInitMem( +SK_AC *pAC) /* pointer to adapter context */ +{ +int i; /* loop counter */ +int RxDescrSize; /* the size of a rx descriptor rounded up to alignment*/ +int TxDescrSize; /* the size of a tx descriptor rounded up to alignment*/ + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("BoardInitMem\n")); + + RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN; + pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize; + TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN; + pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize; + + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + SetupRing( + pAC, + pAC->TxPort[i][0].pTxDescrRing, + pAC->TxPort[i][0].VTxDescrRing, + (RXD**)&pAC->TxPort[i][0].pTxdRingHead, + (RXD**)&pAC->TxPort[i][0].pTxdRingTail, + (RXD**)&pAC->TxPort[i][0].pTxdRingPrev, + &pAC->TxPort[i][0].TxdRingFree, + SK_TRUE); + SetupRing( + pAC, + pAC->RxPort[i].pRxDescrRing, + pAC->RxPort[i].VRxDescrRing, + &pAC->RxPort[i].pRxdRingHead, + &pAC->RxPort[i].pRxdRingTail, + &pAC->RxPort[i].pRxdRingPrev, + &pAC->RxPort[i].RxdRingFree, + SK_FALSE); + } +} /* BoardInitMem */ + + +/***************************************************************************** + * + * SetupRing - create one descriptor ring + * + * Description: + * This function creates one descriptor ring in the given memory area. + * The head, tail and number of free descriptors in the ring are set. + * + * Returns: + * none + */ +static void SetupRing( +SK_AC *pAC, +void *pMemArea, /* a pointer to the memory area for the ring */ +uintptr_t VMemArea, /* the virtual bus address of the memory area */ +RXD **ppRingHead, /* address where the head should be written */ +RXD **ppRingTail, /* address where the tail should be written */ +RXD **ppRingPrev, /* address where the tail should be written */ +int *pRingFree, /* address where the # of free descr. goes */ +SK_BOOL IsTx) /* flag: is this a tx ring */ +{ +int i; /* loop counter */ +int DescrSize; /* the size of a descriptor rounded up to alignment*/ +int DescrNum; /* number of descriptors per ring */ +RXD *pDescr; /* pointer to a descriptor (receive or transmit) */ +RXD *pNextDescr; /* pointer to the next descriptor */ +RXD *pPrevDescr; /* pointer to the previous descriptor */ +uintptr_t VNextDescr; /* the virtual bus address of the next descriptor */ + + if (IsTx == SK_TRUE) { + DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * + DESCR_ALIGN; + DescrNum = TX_RING_SIZE / DescrSize; + } else { + DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * + DESCR_ALIGN; + DescrNum = RX_RING_SIZE / DescrSize; + } + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, + ("Descriptor size: %d Descriptor Number: %d\n", + DescrSize,DescrNum)); + + pDescr = (RXD*) pMemArea; + pPrevDescr = NULL; + pNextDescr = (RXD*) (((char*)pDescr) + DescrSize); + VNextDescr = VMemArea + DescrSize; + for(i=0; i<DescrNum; i++) { + /* set the pointers right */ + pDescr->VNextRxd = VNextDescr & 0xffffffffULL; + pDescr->pNextRxd = pNextDescr; + pDescr->TcpSumStarts = pAC->CsOfs; + + /* advance one step */ + pPrevDescr = pDescr; + pDescr = pNextDescr; + pNextDescr = (RXD*) (((char*)pDescr) + DescrSize); + VNextDescr += DescrSize; + } + pPrevDescr->pNextRxd = (RXD*) pMemArea; + pPrevDescr->VNextRxd = VMemArea; + pDescr = (RXD*) pMemArea; + *ppRingHead = (RXD*) pMemArea; + *ppRingTail = *ppRingHead; + *ppRingPrev = pPrevDescr; + *pRingFree = DescrNum; +} /* SetupRing */ + + +/***************************************************************************** + * + * PortReInitBmu - re-initiate the descriptor rings for one port + * + * Description: + * This function reinitializes the descriptor rings of one port + * in memory. The port must be stopped before. + * The HW is initialized with the descriptor start addresses. + * + * Returns: + * none + */ +static void PortReInitBmu( +SK_AC *pAC, /* pointer to adapter context */ +int PortIndex) /* index of the port for which to re-init */ +{ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("PortReInitBmu ")); + + /* set address of first descriptor of ring in BMU */ + SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ + TX_Q_CUR_DESCR_LOW, + (uint32_t)(((caddr_t) + (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) - + pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing + + pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) & + 0xFFFFFFFF)); + SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+ + TX_Q_DESCR_HIGH, + (uint32_t)(((caddr_t) + (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) - + pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing + + pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32)); + SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CUR_DESCR_LOW, + (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) - + pAC->RxPort[PortIndex].pRxDescrRing + + pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF)); + SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_DESCR_HIGH, + (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) - + pAC->RxPort[PortIndex].pRxDescrRing + + pAC->RxPort[PortIndex].VRxDescrRing) >> 32)); +} /* PortReInitBmu */ + + +/**************************************************************************** + * + * SkGeIsr - handle adapter interrupts + * + * Description: + * The interrupt routine is called when the network adapter + * generates an interrupt. It may also be called if another device + * shares this interrupt vector with the driver. + * + * Returns: N/A + * + */ +#if 0 +static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs) +#else +void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs) +#endif +{ +struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id; +DEV_NET *pNet; +SK_AC *pAC; +SK_U32 IntSrc; /* interrupts source register contents */ + + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + + /* + * Check and process if its our interrupt + */ + SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc); + if (IntSrc == 0) { + return; + } + + while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) { +#if 0 /* software irq currently not used */ + if (IntSrc & IRQ_SW) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("Software IRQ\n")); + } +#endif + if (IntSrc & IRQ_EOF_RX1) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF RX1 IRQ\n")); + ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE); + SK_PNMI_CNT_RX_INTR(pAC, 0); + } + if (IntSrc & IRQ_EOF_RX2) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF RX2 IRQ\n")); + ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE); + SK_PNMI_CNT_RX_INTR(pAC, 1); + } +#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */ + if (IntSrc & IRQ_EOF_AS_TX1) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF AS TX1 IRQ\n")); + SK_PNMI_CNT_TX_INTR(pAC, 0); + spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock); + FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]); + spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock); + } + if (IntSrc & IRQ_EOF_AS_TX2) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF AS TX2 IRQ\n")); + SK_PNMI_CNT_TX_INTR(pAC, 1); + spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock); + FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]); + spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock); + } +#if 0 /* only if sync. queues used */ + if (IntSrc & IRQ_EOF_SY_TX1) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF SY TX1 IRQ\n")); + SK_PNMI_CNT_TX_INTR(pAC, 1); + spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock); + FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH); + spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock); + ClearTxIrq(pAC, 0, TX_PRIO_HIGH); + } + if (IntSrc & IRQ_EOF_SY_TX2) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF SY TX2 IRQ\n")); + SK_PNMI_CNT_TX_INTR(pAC, 1); + spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock); + FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH); + spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock); + ClearTxIrq(pAC, 1, TX_PRIO_HIGH); + } +#endif +#endif + + /* do all IO at once */ + if (IntSrc & IRQ_EOF_RX1) + ClearAndStartRx(pAC, 0); + if (IntSrc & IRQ_EOF_RX2) + ClearAndStartRx(pAC, 1); +#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */ + if (IntSrc & IRQ_EOF_AS_TX1) + ClearTxIrq(pAC, 0, TX_PRIO_LOW); + if (IntSrc & IRQ_EOF_AS_TX2) + ClearTxIrq(pAC, 1, TX_PRIO_LOW); +#endif + SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc); + } /* while (IntSrc & IRQ_MASK != 0) */ + + if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, + ("SPECIAL IRQ DP-Cards => %x\n", IntSrc)); + pAC->CheckQueue = SK_FALSE; + spin_lock(&pAC->SlowPathLock); + if (IntSrc & SPECIAL_IRQS) + SkGeSirqIsr(pAC, pAC->IoBase, IntSrc); + + SkEventDispatcher(pAC, pAC->IoBase); + spin_unlock(&pAC->SlowPathLock); + } + /* + * do it all again is case we cleared an interrupt that + * came in after handling the ring (OUTs may be delayed + * in hardware buffers, but are through after IN) + */ + + ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE); + ReceiveIrq(pAC, &pAC->RxPort[1], SK_TRUE); + + if (pAC->CheckQueue) { + pAC->CheckQueue = SK_FALSE; + spin_lock(&pAC->SlowPathLock); + SkEventDispatcher(pAC, pAC->IoBase); + spin_unlock(&pAC->SlowPathLock); + } + + + /* IRQ is processed - Enable IRQs again*/ + SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK); + + return; +} /* SkGeIsr */ + + +/**************************************************************************** + * + * SkGeIsrOnePort - handle adapter interrupts for single port adapter + * + * Description: + * The interrupt routine is called when the network adapter + * generates an interrupt. It may also be called if another device + * shares this interrupt vector with the driver. + * This is the same as above, but handles only one port. + * + * Returns: N/A + * + */ +#if 0 +static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs) +#else +void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs) +#endif +{ +struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id; +DEV_NET *pNet; +SK_AC *pAC; +SK_U32 IntSrc; /* interrupts source register contents */ + + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + + /* + * Check and process if its our interrupt + */ + SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc); + if (IntSrc == 0) { + return; + } + + while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) { +#if 0 /* software irq currently not used */ + if (IntSrc & IRQ_SW) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("Software IRQ\n")); + } +#endif + if (IntSrc & IRQ_EOF_RX1) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF RX1 IRQ\n")); + ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE); + SK_PNMI_CNT_RX_INTR(pAC, 0); + } +#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */ + if (IntSrc & IRQ_EOF_AS_TX1) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF AS TX1 IRQ\n")); + SK_PNMI_CNT_TX_INTR(pAC, 0); + spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock); + FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]); + spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock); + } +#if 0 /* only if sync. queues used */ + if (IntSrc & IRQ_EOF_SY_TX1) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_INT_SRC, + ("EOF SY TX1 IRQ\n")); + SK_PNMI_CNT_TX_INTR(pAC, 0); + spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock); + FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH); + spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock); + ClearTxIrq(pAC, 0, TX_PRIO_HIGH); + } +#endif +#endif + + /* do all IO at once */ + if (IntSrc & IRQ_EOF_RX1) + ClearAndStartRx(pAC, 0); +#ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */ + if (IntSrc & IRQ_EOF_AS_TX1) + ClearTxIrq(pAC, 0, TX_PRIO_LOW); +#endif + SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc); + } /* while (IntSrc & IRQ_MASK != 0) */ + + if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, + ("SPECIAL IRQ SP-Cards => %x\n", IntSrc)); + pAC->CheckQueue = SK_FALSE; + spin_lock(&pAC->SlowPathLock); + if (IntSrc & SPECIAL_IRQS) + SkGeSirqIsr(pAC, pAC->IoBase, IntSrc); + + SkEventDispatcher(pAC, pAC->IoBase); + spin_unlock(&pAC->SlowPathLock); + } + /* + * do it all again is case we cleared an interrupt that + * came in after handling the ring (OUTs may be delayed + * in hardware buffers, but are through after IN) + */ + ReceiveIrq(pAC, &pAC->RxPort[0], SK_TRUE); + + /* IRQ is processed - Enable IRQs again*/ + SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK); + + return; +} /* SkGeIsrOnePort */ + + +/**************************************************************************** + * + * SkGeOpen - handle start of initialized adapter + * + * Description: + * This function starts the initialized adapter. + * The board level variable is set and the adapter is + * brought to full functionality. + * The device flags are set for operation. + * Do all necessary level 2 initialization, enable interrupts and + * give start command to RLMT. + * + * Returns: + * 0 on success + * != 0 on error + */ +#if 0 +static int SkGeOpen( +#else +int SkGeOpen( +#endif +struct SK_NET_DEVICE *dev) +{ + DEV_NET *pNet; + SK_AC *pAC; + unsigned long Flags; /* for spin lock */ + int i; + SK_EVPARA EvPara; /* an event parameter union */ + + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC)); + + if (pAC->BoardLevel == 0) { + /* level 1 init common modules here */ + if (SkGeInit(pAC, pAC->IoBase, 1) != 0) { + printk("%s: HWInit (1) failed.\n", pAC->dev[pNet->PortNr]->name); + return (-1); + } + SkI2cInit (pAC, pAC->IoBase, 1); + SkEventInit (pAC, pAC->IoBase, 1); + SkPnmiInit (pAC, pAC->IoBase, 1); + SkAddrInit (pAC, pAC->IoBase, 1); + SkRlmtInit (pAC, pAC->IoBase, 1); + SkTimerInit (pAC, pAC->IoBase, 1); + pAC->BoardLevel = 1; + } + + if (pAC->BoardLevel != 2) { + /* tschilling: Level 2 init modules here, check return value. */ + if (SkGeInit(pAC, pAC->IoBase, 2) != 0) { + printk("%s: HWInit (2) failed.\n", pAC->dev[pNet->PortNr]->name); + return (-1); + } + SkI2cInit (pAC, pAC->IoBase, 2); + SkEventInit (pAC, pAC->IoBase, 2); + SkPnmiInit (pAC, pAC->IoBase, 2); + SkAddrInit (pAC, pAC->IoBase, 2); + SkRlmtInit (pAC, pAC->IoBase, 2); + SkTimerInit (pAC, pAC->IoBase, 2); + pAC->BoardLevel = 2; + } + + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + /* Enable transmit descriptor polling. */ + SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE); + FillRxRing(pAC, &pAC->RxPort[i]); + } + SkGeYellowLED(pAC, pAC->IoBase, 1); + +#ifdef USE_INT_MOD +/* moderate only TX complete interrupts (these are not time critical) */ +#define IRQ_MOD_MASK (IRQ_EOF_AS_TX1 | IRQ_EOF_AS_TX2) + { + unsigned long ModBase; + ModBase = 53125000 / INTS_PER_SEC; + SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase); + SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK); + SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START); + } +#endif + + /* enable Interrupts */ + SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK); + SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK); + + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + + if ((pAC->RlmtMode != 0) && (pAC->MaxPorts == 0)) { + EvPara.Para32[0] = pAC->RlmtNets; + EvPara.Para32[1] = -1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS, + EvPara); + EvPara.Para32[0] = pAC->RlmtMode; + EvPara.Para32[1] = 0; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE, + EvPara); + } + + EvPara.Para32[0] = pNet->NetNr; + EvPara.Para32[1] = -1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara); + SkEventDispatcher(pAC, pAC->IoBase); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + + pAC->MaxPorts++; + pNet->Up = 1; + + MOD_INC_USE_COUNT; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeOpen suceeded\n")); + + return (0); +} /* SkGeOpen */ + + +/**************************************************************************** + * + * SkGeClose - Stop initialized adapter + * + * Description: + * Close initialized adapter. + * + * Returns: + * 0 - on success + * error code - on error + */ +#if 0 +static int SkGeClose( +#else +int SkGeClose( +#endif +struct SK_NET_DEVICE *dev) +{ + DEV_NET *pNet; + SK_AC *pAC; + + unsigned long Flags; /* for spin lock */ + int i; + int PortIdx; + SK_EVPARA EvPara; + + netif_stop_queue(dev); + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + + if (pAC->RlmtNets == 1) + PortIdx = pAC->ActivePort; + else + PortIdx = pNet->NetNr; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC)); + + /* + * Clear multicast table, promiscuous mode .... + */ + SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0); + SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx, + SK_PROM_MODE_NONE); + + if (pAC->MaxPorts == 1) { + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + /* disable interrupts */ + SK_OUT32(pAC->IoBase, B0_IMSK, 0); + EvPara.Para32[0] = pNet->NetNr; + EvPara.Para32[1] = -1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara); + SkEventDispatcher(pAC, pAC->IoBase); + SK_OUT32(pAC->IoBase, B0_IMSK, 0); + /* stop the hardware */ + SkGeDeInit(pAC, pAC->IoBase); + pAC->BoardLevel = 0; + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + } else { + + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + EvPara.Para32[0] = pNet->NetNr; + EvPara.Para32[1] = -1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara); + SkEventDispatcher(pAC, pAC->IoBase); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + + /* Stop port */ + spin_lock_irqsave(&pAC->TxPort[pNet->PortNr] + [TX_PRIO_LOW].TxDesRingLock, Flags); + SkGeStopPort(pAC, pAC->IoBase, pNet->PortNr, + SK_STOP_ALL, SK_HARD_RST); + spin_unlock_irqrestore(&pAC->TxPort[pNet->PortNr] + [TX_PRIO_LOW].TxDesRingLock, Flags); + } + + if (pAC->RlmtNets == 1) { + /* clear all descriptor rings */ + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE); + ClearRxRing(pAC, &pAC->RxPort[i]); + ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]); + } + } else { + /* clear port descriptor rings */ + ReceiveIrq(pAC, &pAC->RxPort[pNet->PortNr], SK_TRUE); + ClearRxRing(pAC, &pAC->RxPort[pNet->PortNr]); + ClearTxRing(pAC, &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW]); + } + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeClose: done ")); + + pAC->MaxPorts--; + pNet->Up = 0; + MOD_DEC_USE_COUNT; + + return (0); +} /* SkGeClose */ + + +/***************************************************************************** + * + * SkGeXmit - Linux frame transmit function + * + * Description: + * The system calls this function to send frames onto the wire. + * It puts the frame in the tx descriptor ring. If the ring is + * full then, the 'tbusy' flag is set. + * + * Returns: + * 0, if everything is ok + * !=0, on error + * WARNING: returning 1 in 'tbusy' case caused system crashes (double + * allocated skb's) !!! + */ +#if 0 +static int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev) +#else +int SkGeXmit(struct sk_buff *skb, struct SK_NET_DEVICE *dev) +#endif +{ +DEV_NET *pNet; +SK_AC *pAC; +int Rc; /* return code of XmitFrame */ + + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + +#if 0 + if ((!skb_shinfo(skb)->nr_frags) || +#else + if (1 || +#endif + (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) { + /* Don't activate scatter-gather and hardware checksum */ + + if (pAC->RlmtNets == 2) + Rc = XmitFrame( + pAC, + &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW], + skb); + else + Rc = XmitFrame( + pAC, + &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW], + skb); + } else { +#if 0 + /* scatter-gather and hardware TCP checksumming anabled*/ + if (pAC->RlmtNets == 2) + Rc = XmitFrameSG( + pAC, + &pAC->TxPort[pNet->PortNr][TX_PRIO_LOW], + skb); + else + Rc = XmitFrameSG( + pAC, + &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW], + skb); +#endif + } + + /* Transmitter out of resources? */ + if (Rc <= 0) { + netif_stop_queue(dev); + } + + /* If not taken, give buffer ownership back to the + * queueing layer. + */ + if (Rc < 0) + return (1); + +#if 0 + dev->trans_start = jiffies; +#endif + return (0); +} /* SkGeXmit */ + + +/***************************************************************************** + * + * XmitFrame - fill one socket buffer into the transmit ring + * + * Description: + * This function puts a message into the transmit descriptor ring + * if there is a descriptors left. + * Linux skb's consist of only one continuous buffer. + * The first step locks the ring. It is held locked + * all time to avoid problems with SWITCH_../PORT_RESET. + * Then the descriptoris allocated. + * The second part is linking the buffer to the descriptor. + * At the very last, the Control field of the descriptor + * is made valid for the BMU and a start TX command is given + * if necessary. + * + * Returns: + * > 0 - on succes: the number of bytes in the message + * = 0 - on resource shortage: this frame sent or dropped, now + * the ring is full ( -> set tbusy) + * < 0 - on failure: other problems ( -> return failure to upper layers) + */ +static int XmitFrame( +SK_AC *pAC, /* pointer to adapter context */ +TX_PORT *pTxPort, /* pointer to struct of port to send to */ +struct sk_buff *pMessage) /* pointer to send-message */ +{ +TXD *pTxd; /* the rxd to fill */ +unsigned long Flags; +SK_U64 PhysAddr; +int BytesSend; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, + ("X")); + + spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags); +#ifndef USE_TX_COMPLETE + FreeTxDescriptors(pAC, pTxPort); +#endif + if (pTxPort->TxdRingFree == 0) { + /* no enough free descriptors in ring at the moment */ + FreeTxDescriptors(pAC, pTxPort); + if (pTxPort->TxdRingFree == 0) { + spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags); + SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex); + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_TX_PROGRESS, + ("XmitFrame failed\n")); + /* this message can not be sent now */ + /* Because tbusy seems to be set, the message should not be freed here */ + /* It will be used by the scheduler of the ethernet handler */ + return (-1); + } + } + /* advance head counter behind descriptor needed for this frame */ + pTxd = pTxPort->pTxdRingHead; + pTxPort->pTxdRingHead = pTxd->pNextTxd; + pTxPort->TxdRingFree--; + /* the needed descriptor is reserved now */ + + /* + * everything allocated ok, so add buffer to descriptor + */ + +#ifdef SK_DUMP_TX + DumpMsg(pMessage, "XmitFrame"); +#endif + + /* set up descriptor and CONTROL dword */ +#if 0 + PhysAddr = (SK_U64) pci_map_page(pAC->PciDev, + virt_to_page(pMessage->data), + ((unsigned long) pMessage->data & + ~PAGE_MASK), + pMessage->len, + PCI_DMA_TODEVICE); +#else + PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32) pMessage->data); +#endif + pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff); + pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32); + pTxd->pMBuf = pMessage; + pTxd->TBControl = TX_CTRL_OWN_BMU | TX_CTRL_STF | + TX_CTRL_CHECK_DEFAULT | TX_CTRL_SOFTWARE | +#ifdef USE_TX_COMPLETE + TX_CTRL_EOF | TX_CTRL_EOF_IRQ | pMessage->len; +#else + TX_CTRL_EOF | pMessage->len; +#endif + + if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) { + /* previous descriptor already done, so give tx start cmd */ + /* StartTx(pAC, pTxPort->HwAddr); */ + SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START); + } + pTxPort->pTxdRingPrev = pTxd; + + + BytesSend = pMessage->len; + spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags); + /* after releasing the lock, the skb may be immidiately freed */ + if (pTxPort->TxdRingFree != 0) + return (BytesSend); + else + return (0); + +} /* XmitFrame */ + +/***************************************************************************** + * + * XmitFrameSG - fill one socket buffer into the transmit ring + * (use SG and TCP/UDP hardware checksumming) + * + * Description: + * This function puts a message into the transmit descriptor ring + * if there is a descriptors left. + * + * Returns: + * > 0 - on succes: the number of bytes in the message + * = 0 - on resource shortage: this frame sent or dropped, now + * the ring is full ( -> set tbusy) + * < 0 - on failure: other problems ( -> return failure to upper layers) + */ +#if 0 +static int XmitFrameSG( +SK_AC *pAC, /* pointer to adapter context */ +TX_PORT *pTxPort, /* pointer to struct of port to send to */ +struct sk_buff *pMessage) /* pointer to send-message */ +{ + + int i; + int BytesSend; + int hlength; + int protocol; + skb_frag_t *sk_frag; + TXD *pTxd; + TXD *pTxdFst; + TXD *pTxdLst; + SK_U64 PhysAddr; + unsigned long Flags; + + spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags); +#ifndef USE_TX_COMPLETE + FreeTxDescriptors(pAC, pTxPort); +#endif + if ((skb_shinfo(pMessage)->nr_frags +1) > pTxPort->TxdRingFree) { + FreeTxDescriptors(pAC, pTxPort); + if ((skb_shinfo(pMessage)->nr_frags + 1) > pTxPort->TxdRingFree) { + spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags); + SK_PNMI_CNT_NO_TX_BUF(pAC, pTxPort->PortIndex); + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_TX_PROGRESS, + ("XmitFrameSG failed - Ring full\n")); + /* this message can not be sent now */ + return(-1); + } + } + + + pTxd = pTxPort->pTxdRingHead; + pTxdFst = pTxd; + pTxdLst = pTxd; + BytesSend = 0; + protocol = 0; + + /* map first fragment (header) */ + PhysAddr = (SK_U64) pci_map_page(pAC->PciDev, + virt_to_page(pMessage->data), + ((unsigned long) pMessage->data & ~PAGE_MASK), + skb_headlen(pMessage), + PCI_DMA_TODEVICE); + + pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff); + pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32); + + /* HW checksum? */ + if (pMessage->ip_summed == CHECKSUM_HW) { + pTxd->TBControl = TX_CTRL_STF | + TX_CTRL_ST_FWD | + skb_headlen(pMessage); + + /* We have to use the opcode for tcp here because the opcode for + udp is not working in the hardware yet (revision 2.0)*/ + protocol = ((SK_U8)pMessage->data[23] & 0xf); + if ((protocol == 17) && (pAC->GIni.GIChipRev != 0)) + pTxd->TBControl |= BMU_UDP_CHECK; + else + pTxd->TBControl |= BMU_TCP_CHECK ; + + hlength = ((SK_U8)pMessage->data[14] & 0xf) * 4; + pTxd->TcpSumOfs = 0; /* PH-Checksum already claculated */ + pTxd->TcpSumSt = 14+hlength+16; + pTxd->TcpSumWr = 14+hlength; + + } else { + pTxd->TBControl = TX_CTRL_CHECK_DEFAULT | + TX_CTRL_SOFTWARE | + TX_CTRL_STF | + skb_headlen(pMessage); + } + + pTxd = pTxd->pNextTxd; + pTxPort->TxdRingFree--; + BytesSend += skb_headlen(pMessage); + + + /* Map SG fragments */ + for (i = 0; i < skb_shinfo(pMessage)->nr_frags; i++) { + sk_frag = &skb_shinfo(pMessage)->frags[i]; + + /* we already have the proper value in entry */ + PhysAddr = (SK_U64) pci_map_page(pAC->PciDev, + sk_frag->page, + sk_frag->page_offset, + sk_frag->size, + PCI_DMA_TODEVICE); + + pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff); + pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32); + pTxd->pMBuf = pMessage; + + /* HW checksum */ + if (pMessage->ip_summed == CHECKSUM_HW) { + pTxd->TBControl = TX_CTRL_OWN_BMU | + TX_CTRL_SOFTWARE | + TX_CTRL_ST_FWD; + + /* We have to use the opcode for tcp here because the opcode for + udp is not working in the hardware yet (revision 2.0)*/ + if ((protocol == 17) && (pAC->GIni.GIChipRev != 0)) + pTxd->TBControl |= BMU_UDP_CHECK ; + else + pTxd->TBControl |= BMU_TCP_CHECK ; + + } else { + pTxd->TBControl = TX_CTRL_CHECK_DEFAULT | + TX_CTRL_SOFTWARE | + TX_CTRL_OWN_BMU; + } + + /* Last fragment */ + if( (i+1) == skb_shinfo(pMessage)->nr_frags ) { +#ifdef USE_TX_COMPLETE + pTxd->TBControl |= TX_CTRL_EOF | + TX_CTRL_EOF_IRQ | + sk_frag->size; +#else + pTxd->TBControl |= TX_CTRL_EOF | + sk_frag->size; +#endif + pTxdFst->TBControl |= TX_CTRL_OWN_BMU | + TX_CTRL_SOFTWARE; + + } else { + pTxd->TBControl |= sk_frag->size; + } + pTxdLst = pTxd; + pTxd = pTxd->pNextTxd; + pTxPort->TxdRingFree--; + BytesSend += sk_frag->size; + } + + if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) { + /* previous descriptor already done, so give tx start cmd */ + /* StartTx(pAC, pTxPort->HwAddr); */ + SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START); + } + + pTxPort->pTxdRingPrev = pTxdLst; + pTxPort->pTxdRingHead = pTxd; + + spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags); + + if (pTxPort->TxdRingFree > 0) + return (BytesSend); + else + return (0); +} +#endif + + +void dump_frag( SK_U8 *data, int length) +{ + int i; + + printk("Length: %d\n", length); + for( i=0; i < length; i++ ) { + printk(" %02x", (SK_U8)*(data + i) ); + if( !((i+1) % 20) ) + printk("\n"); + } + printk("\n\n"); + +} + + +/***************************************************************************** + * + * FreeTxDescriptors - release descriptors from the descriptor ring + * + * Description: + * This function releases descriptors from a transmit ring if they + * have been sent by the BMU. + * If a descriptors is sent, it can be freed and the message can + * be freed, too. + * The SOFTWARE controllable bit is used to prevent running around a + * completely free ring for ever. If this bit is no set in the + * frame (by XmitFrame), this frame has never been sent or is + * already freed. + * The Tx descriptor ring lock must be held while calling this function !!! + * + * Returns: + * none + */ +static void FreeTxDescriptors( +SK_AC *pAC, /* pointer to the adapter context */ +TX_PORT *pTxPort) /* pointer to destination port structure */ +{ +TXD *pTxd; /* pointer to the checked descriptor */ +TXD *pNewTail; /* pointer to 'end' of the ring */ +SK_U32 Control; /* TBControl field of descriptor */ +SK_U64 PhysAddr; /* address of DMA mapping */ + + pNewTail = pTxPort->pTxdRingTail; + pTxd = pNewTail; + /* + * loop forever; exits if TX_CTRL_SOFTWARE bit not set in start frame + * or TX_CTRL_OWN_BMU bit set in any frame + */ + while (1) { + Control = pTxd->TBControl; + if ((Control & TX_CTRL_SOFTWARE) == 0) { + /* + * software controllable bit is set in first + * fragment when given to BMU. Not set means that + * this fragment was never sent or is already + * freed ( -> ring completely free now). + */ + pTxPort->pTxdRingTail = pTxd; + netif_wake_queue(pAC->dev[pTxPort->PortIndex]); + return; + } + if (Control & TX_CTRL_OWN_BMU) { + pTxPort->pTxdRingTail = pTxd; + if (pTxPort->TxdRingFree > 0) { + netif_wake_queue(pAC->dev[pTxPort->PortIndex]); + } + return; + } + + /* release the DMA mapping */ + PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32; + PhysAddr |= (SK_U64) pTxd->VDataLow; + pci_unmap_page(pAC->PciDev, PhysAddr, + pTxd->pMBuf->len, + PCI_DMA_TODEVICE); + + if (Control & TX_CTRL_EOF) + DEV_KFREE_SKB_ANY(pTxd->pMBuf); /* free message */ + + pTxPort->TxdRingFree++; + pTxd->TBControl &= ~TX_CTRL_SOFTWARE; + pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */ + } /* while(forever) */ +} /* FreeTxDescriptors */ + +/***************************************************************************** + * + * FillRxRing - fill the receive ring with valid descriptors + * + * Description: + * This function fills the receive ring descriptors with data + * segments and makes them valid for the BMU. + * The active ring is filled completely, if possible. + * The non-active ring is filled only partial to save memory. + * + * Description of rx ring structure: + * head - points to the descriptor which will be used next by the BMU + * tail - points to the next descriptor to give to the BMU + * + * Returns: N/A + */ +static void FillRxRing( +SK_AC *pAC, /* pointer to the adapter context */ +RX_PORT *pRxPort) /* ptr to port struct for which the ring + should be filled */ +{ +unsigned long Flags; + + spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags); + while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) { + if(!FillRxDescriptor(pAC, pRxPort)) + break; + } + spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags); +} /* FillRxRing */ + + +/***************************************************************************** + * + * FillRxDescriptor - fill one buffer into the receive ring + * + * Description: + * The function allocates a new receive buffer and + * puts it into the next descriptor. + * + * Returns: + * SK_TRUE - a buffer was added to the ring + * SK_FALSE - a buffer could not be added + */ +static SK_BOOL FillRxDescriptor( +SK_AC *pAC, /* pointer to the adapter context struct */ +RX_PORT *pRxPort) /* ptr to port struct of ring to fill */ +{ +struct sk_buff *pMsgBlock; /* pointer to a new message block */ +RXD *pRxd; /* the rxd to fill */ +SK_U16 Length; /* data fragment length */ +SK_U64 PhysAddr; /* physical address of a rx buffer */ + + pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC); + if (pMsgBlock == NULL) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_ENTRY, + ("%s: Allocation of rx buffer failed !\n", + pAC->dev[pRxPort->PortIndex]->name)); + SK_PNMI_CNT_NO_RX_BUF(pAC, pRxPort->PortIndex); + return(SK_FALSE); + } + skb_reserve(pMsgBlock, 2); /* to align IP frames */ + /* skb allocated ok, so add buffer */ + pRxd = pRxPort->pRxdRingTail; + pRxPort->pRxdRingTail = pRxd->pNextRxd; + pRxPort->RxdRingFree--; + Length = pAC->RxBufSize; +#if 0 + PhysAddr = (SK_U64) pci_map_page(pAC->PciDev, + virt_to_page(pMsgBlock->data), + ((unsigned long) pMsgBlock->data & + ~PAGE_MASK), + pAC->RxBufSize - 2, + PCI_DMA_FROMDEVICE); +#else + PhysAddr = (SK_U64) pci_phys_to_mem(pAC->PciDev, (u32)pMsgBlock->data); +#endif + pRxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff); + pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32); + pRxd->pMBuf = pMsgBlock; + pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF | + RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length; + return (SK_TRUE); + +} /* FillRxDescriptor */ + + +/***************************************************************************** + * + * ReQueueRxBuffer - fill one buffer back into the receive ring + * + * Description: + * Fill a given buffer back into the rx ring. The buffer + * has been previously allocated and aligned, and its phys. + * address calculated, so this is no more necessary. + * + * Returns: N/A + */ +static void ReQueueRxBuffer( +SK_AC *pAC, /* pointer to the adapter context struct */ +RX_PORT *pRxPort, /* ptr to port struct of ring to fill */ +struct sk_buff *pMsg, /* pointer to the buffer */ +SK_U32 PhysHigh, /* phys address high dword */ +SK_U32 PhysLow) /* phys address low dword */ +{ +RXD *pRxd; /* the rxd to fill */ +SK_U16 Length; /* data fragment length */ + + pRxd = pRxPort->pRxdRingTail; + pRxPort->pRxdRingTail = pRxd->pNextRxd; + pRxPort->RxdRingFree--; + Length = pAC->RxBufSize; + pRxd->VDataLow = PhysLow; + pRxd->VDataHigh = PhysHigh; + pRxd->pMBuf = pMsg; + pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF | + RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length; + return; +} /* ReQueueRxBuffer */ + + +/***************************************************************************** + * + * ReceiveIrq - handle a receive IRQ + * + * Description: + * This function is called when a receive IRQ is set. + * It walks the receive descriptor ring and sends up all + * frames that are complete. + * + * Returns: N/A + */ +#if 0 +static void ReceiveIrq( +#else +void ReceiveIrq( +#endif + SK_AC *pAC, /* pointer to adapter context */ + RX_PORT *pRxPort, /* pointer to receive port struct */ + SK_BOOL SlowPathLock) /* indicates if SlowPathLock is needed */ +{ +RXD *pRxd; /* pointer to receive descriptors */ +SK_U32 Control; /* control field of descriptor */ +struct sk_buff *pMsg; /* pointer to message holding frame */ +struct sk_buff *pNewMsg; /* pointer to a new message for copying frame */ +int FrameLength; /* total length of received frame */ +SK_MBUF *pRlmtMbuf; /* ptr to a buffer for giving a frame to rlmt */ +SK_EVPARA EvPara; /* an event parameter union */ +unsigned long Flags; /* for spin lock */ +int PortIndex = pRxPort->PortIndex; +unsigned int Offset; +unsigned int NumBytes; +unsigned int ForRlmt; +SK_BOOL IsBc; +SK_BOOL IsMc; +SK_BOOL IsBadFrame; /* Bad frame */ + +SK_U32 FrameStat; +unsigned short Csum1; +unsigned short Csum2; +unsigned short Type; +#if 0 +int Result; +#endif +SK_U64 PhysAddr; + +rx_start: + /* do forever; exit if RX_CTRL_OWN_BMU found */ + for ( pRxd = pRxPort->pRxdRingHead ; + pRxPort->RxdRingFree < pAC->RxDescrPerRing ; + pRxd = pRxd->pNextRxd, + pRxPort->pRxdRingHead = pRxd, + pRxPort->RxdRingFree ++) { + + /* + * For a better understanding of this loop + * Go through every descriptor beginning at the head + * Please note: the ring might be completely received so the OWN bit + * set is not a good crirteria to leave that loop. + * Therefore the RingFree counter is used. + * On entry of this loop pRxd is a pointer to the Rxd that needs + * to be checked next. + */ + + Control = pRxd->RBControl; + + /* check if this descriptor is ready */ + if ((Control & RX_CTRL_OWN_BMU) != 0) { + /* this descriptor is not yet ready */ + /* This is the usual end of the loop */ + /* We don't need to start the ring again */ + FillRxRing(pAC, pRxPort); + return; + } + + /* get length of frame and check it */ + FrameLength = Control & RX_CTRL_LEN_MASK; + if (FrameLength > pAC->RxBufSize) { + goto rx_failed; + } + + /* check for STF and EOF */ + if ((Control & (RX_CTRL_STF | RX_CTRL_EOF)) != + (RX_CTRL_STF | RX_CTRL_EOF)) { + goto rx_failed; + } + + /* here we have a complete frame in the ring */ + pMsg = pRxd->pMBuf; + + FrameStat = pRxd->FrameStat; + + /* check for frame length mismatch */ +#define XMR_FS_LEN_SHIFT 18 +#define GMR_FS_LEN_SHIFT 16 + if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) { + if (FrameLength != (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT)) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_RX_PROGRESS, + ("skge: Frame length mismatch (%u/%u).\n", + FrameLength, + (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT))); + goto rx_failed; + } + } + else { + if (FrameLength != (SK_U32) (FrameStat >> GMR_FS_LEN_SHIFT)) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_RX_PROGRESS, + ("skge: Frame length mismatch (%u/%u).\n", + FrameLength, + (SK_U32) (FrameStat >> XMR_FS_LEN_SHIFT))); + goto rx_failed; + } + } + + /* Set Rx Status */ + if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) { + IsBc = (FrameStat & XMR_FS_BC) != 0; + IsMc = (FrameStat & XMR_FS_MC) != 0; + IsBadFrame = (FrameStat & + (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0; + } else { + IsBc = (FrameStat & GMR_FS_BC) != 0; + IsMc = (FrameStat & GMR_FS_MC) != 0; + IsBadFrame = (((FrameStat & GMR_FS_ANY_ERR) != 0) || + ((FrameStat & GMR_FS_RX_OK) == 0)); + } + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0, + ("Received frame of length %d on port %d\n", + FrameLength, PortIndex)); + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 0, + ("Number of free rx descriptors: %d\n", + pRxPort->RxdRingFree)); +/* DumpMsg(pMsg, "Rx"); */ + + if ((Control & RX_CTRL_STAT_VALID) != RX_CTRL_STAT_VALID || + (IsBadFrame)) { +#if 0 + (FrameStat & (XMR_FS_ANY_ERR | XMR_FS_2L_VLAN)) != 0) { +#endif + /* there is a receive error in this frame */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_RX_PROGRESS, + ("skge: Error in received frame, dropped!\n" + "Control: %x\nRxStat: %x\n", + Control, FrameStat)); + + PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32; + PhysAddr |= (SK_U64) pRxd->VDataLow; + pci_dma_sync_single(pAC->PciDev, + (dma_addr_t) PhysAddr, + FrameLength, + PCI_DMA_FROMDEVICE); + ReQueueRxBuffer(pAC, pRxPort, pMsg, + pRxd->VDataHigh, pRxd->VDataLow); + + continue; + } + + /* + * if short frame then copy data to reduce memory waste + */ + if ((FrameLength < SK_COPY_THRESHOLD) && + ((pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC)) != NULL)) { + /* + * Short frame detected and allocation successfull + */ + /* use new skb and copy data */ + skb_reserve(pNewMsg, 2); + skb_put(pNewMsg, FrameLength); + PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32; + PhysAddr |= (SK_U64) pRxd->VDataLow; + + pci_dma_sync_single(pAC->PciDev, + (dma_addr_t) PhysAddr, + FrameLength, + PCI_DMA_FROMDEVICE); + eth_copy_and_sum(pNewMsg, pMsg->data, + FrameLength, 0); + ReQueueRxBuffer(pAC, pRxPort, pMsg, + pRxd->VDataHigh, pRxd->VDataLow); + pMsg = pNewMsg; + + } + else { + /* + * if large frame, or SKB allocation failed, pass + * the SKB directly to the networking + */ + + PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32; + PhysAddr |= (SK_U64) pRxd->VDataLow; + + /* release the DMA mapping */ + pci_unmap_single(pAC->PciDev, + PhysAddr, + pAC->RxBufSize - 2, + PCI_DMA_FROMDEVICE); + + /* set length in message */ + skb_put(pMsg, FrameLength); + /* hardware checksum */ + Type = ntohs(*((short*)&pMsg->data[12])); + if (Type == 0x800) { + Csum1=le16_to_cpu(pRxd->TcpSums & 0xffff); + Csum2=le16_to_cpu((pRxd->TcpSums >> 16) & 0xffff); +#if 0 + if ((((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) && + (pAC->GIni.GIChipId == CHIP_ID_GENESIS)) || + (pAC->GIni.GIChipId == CHIP_ID_YUKON)) { + Result = SkCsGetReceiveInfo(pAC, + &pMsg->data[14], + Csum1, Csum2, pRxPort->PortIndex); + if (Result == + SKCS_STATUS_IP_FRAGMENT || + Result == + SKCS_STATUS_IP_CSUM_OK || + Result == + SKCS_STATUS_TCP_CSUM_OK || + Result == + SKCS_STATUS_UDP_CSUM_OK) { + pMsg->ip_summed = + CHECKSUM_UNNECESSARY; + } else { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_RX_PROGRESS, + ("skge: CRC error. Frame dropped!\n")); + goto rx_failed; + } + }/* checksumControl calculation valid */ +#endif + } /* IP frame */ + } /* frame > SK_COPY_TRESHOLD */ + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("V")); + ForRlmt = SK_RLMT_RX_PROTOCOL; +#if 0 + IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC; +#endif + SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength, + IsBc, &Offset, &NumBytes); + if (NumBytes != 0) { +#if 0 + IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC; +#endif + SK_RLMT_LOOKAHEAD(pAC, PortIndex, + &pMsg->data[Offset], + IsBc, IsMc, &ForRlmt); + } + if (ForRlmt == SK_RLMT_RX_PROTOCOL) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("W")); + /* send up only frames from active port */ + if ((PortIndex == pAC->ActivePort) || + (pAC->RlmtNets == 2)) { + /* frame for upper layer */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, 1,("U")); +#ifdef xDEBUG + DumpMsg(pMsg, "Rx"); +#endif + SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC, + FrameLength, pRxPort->PortIndex); + +#if 0 + pMsg->dev = pAC->dev[pRxPort->PortIndex]; + pMsg->protocol = eth_type_trans(pMsg, + pAC->dev[pRxPort->PortIndex]); + netif_rx(pMsg); + pAC->dev[pRxPort->PortIndex]->last_rx = jiffies; +#else + NetReceive(pMsg->data, pMsg->len); + dev_kfree_skb_any(pMsg); +#endif + } + else { + /* drop frame */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_RX_PROGRESS, + ("D")); + DEV_KFREE_SKB(pMsg); + } + + } /* if not for rlmt */ + else { + /* packet for rlmt */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_RX_PROGRESS, ("R")); + pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC, + pAC->IoBase, FrameLength); + if (pRlmtMbuf != NULL) { + pRlmtMbuf->pNext = NULL; + pRlmtMbuf->Length = FrameLength; + pRlmtMbuf->PortIdx = PortIndex; + EvPara.pParaPtr = pRlmtMbuf; + memcpy((char*)(pRlmtMbuf->pData), + (char*)(pMsg->data), + FrameLength); + + /* SlowPathLock needed? */ + if (SlowPathLock == SK_TRUE) { + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + SkEventQueue(pAC, SKGE_RLMT, + SK_RLMT_PACKET_RECEIVED, + EvPara); + pAC->CheckQueue = SK_TRUE; + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + } else { + SkEventQueue(pAC, SKGE_RLMT, + SK_RLMT_PACKET_RECEIVED, + EvPara); + pAC->CheckQueue = SK_TRUE; + } + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, + SK_DBGCAT_DRV_RX_PROGRESS, + ("Q")); + } +#if 0 + if ((pAC->dev[pRxPort->PortIndex]->flags & + (IFF_PROMISC | IFF_ALLMULTI)) != 0 || + (ForRlmt & SK_RLMT_RX_PROTOCOL) == + SK_RLMT_RX_PROTOCOL) { + pMsg->dev = pAC->dev[pRxPort->PortIndex]; + pMsg->protocol = eth_type_trans(pMsg, + pAC->dev[pRxPort->PortIndex]); + netif_rx(pMsg); + pAC->dev[pRxPort->PortIndex]->last_rx = jiffies; + } +#else + if (0) { + } +#endif + else { + DEV_KFREE_SKB(pMsg); + } + + } /* if packet for rlmt */ + } /* for ... scanning the RXD ring */ + + /* RXD ring is empty -> fill and restart */ + FillRxRing(pAC, pRxPort); + /* do not start if called from Close */ + if (pAC->BoardLevel > 0) { + ClearAndStartRx(pAC, PortIndex); + } + return; + +rx_failed: + /* remove error frame */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR, + ("Schrottdescriptor, length: 0x%x\n", FrameLength)); + + /* release the DMA mapping */ + + PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32; + PhysAddr |= (SK_U64) pRxd->VDataLow; + pci_unmap_page(pAC->PciDev, + PhysAddr, + pAC->RxBufSize - 2, + PCI_DMA_FROMDEVICE); + DEV_KFREE_SKB_IRQ(pRxd->pMBuf); + pRxd->pMBuf = NULL; + pRxPort->RxdRingFree++; + pRxPort->pRxdRingHead = pRxd->pNextRxd; + goto rx_start; + +} /* ReceiveIrq */ + + +/***************************************************************************** + * + * ClearAndStartRx - give a start receive command to BMU, clear IRQ + * + * Description: + * This function sends a start command and a clear interrupt + * command for one receive queue to the BMU. + * + * Returns: N/A + * none + */ +static void ClearAndStartRx( +SK_AC *pAC, /* pointer to the adapter context */ +int PortIndex) /* index of the receive port (XMAC) */ +{ + SK_OUT8(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CTRL, + RX_Q_CTRL_START | RX_Q_CTRL_CLR_I_EOF); +} /* ClearAndStartRx */ + + +/***************************************************************************** + * + * ClearTxIrq - give a clear transmit IRQ command to BMU + * + * Description: + * This function sends a clear tx IRQ command for one + * transmit queue to the BMU. + * + * Returns: N/A + */ +static void ClearTxIrq( +SK_AC *pAC, /* pointer to the adapter context */ +int PortIndex, /* index of the transmit port (XMAC) */ +int Prio) /* priority or normal queue */ +{ + SK_OUT8(pAC->IoBase, TxQueueAddr[PortIndex][Prio]+TX_Q_CTRL, + TX_Q_CTRL_CLR_I_EOF); +} /* ClearTxIrq */ + + +/***************************************************************************** + * + * ClearRxRing - remove all buffers from the receive ring + * + * Description: + * This function removes all receive buffers from the ring. + * The receive BMU must be stopped before calling this function. + * + * Returns: N/A + */ +static void ClearRxRing( +SK_AC *pAC, /* pointer to adapter context */ +RX_PORT *pRxPort) /* pointer to rx port struct */ +{ +RXD *pRxd; /* pointer to the current descriptor */ +unsigned long Flags; +SK_U64 PhysAddr; + + if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) { + return; + } + spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags); + pRxd = pRxPort->pRxdRingHead; + do { + if (pRxd->pMBuf != NULL) { + + PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32; + PhysAddr |= (SK_U64) pRxd->VDataLow; + pci_unmap_page(pAC->PciDev, + PhysAddr, + pAC->RxBufSize - 2, + PCI_DMA_FROMDEVICE); + DEV_KFREE_SKB(pRxd->pMBuf); + pRxd->pMBuf = NULL; + } + pRxd->RBControl &= RX_CTRL_OWN_BMU; + pRxd = pRxd->pNextRxd; + pRxPort->RxdRingFree++; + } while (pRxd != pRxPort->pRxdRingTail); + pRxPort->pRxdRingTail = pRxPort->pRxdRingHead; + spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags); +} /* ClearRxRing */ + + +/***************************************************************************** + * + * ClearTxRing - remove all buffers from the transmit ring + * + * Description: + * This function removes all transmit buffers from the ring. + * The transmit BMU must be stopped before calling this function + * and transmitting at the upper level must be disabled. + * The BMU own bit of all descriptors is cleared, the rest is + * done by calling FreeTxDescriptors. + * + * Returns: N/A + */ +static void ClearTxRing( +SK_AC *pAC, /* pointer to adapter context */ +TX_PORT *pTxPort) /* pointer to tx prt struct */ +{ +TXD *pTxd; /* pointer to the current descriptor */ +int i; +unsigned long Flags; + + spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags); + pTxd = pTxPort->pTxdRingHead; + for (i=0; i<pAC->TxDescrPerRing; i++) { + pTxd->TBControl &= ~TX_CTRL_OWN_BMU; + pTxd = pTxd->pNextTxd; + } + FreeTxDescriptors(pAC, pTxPort); + spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags); +} /* ClearTxRing */ + + +#if 0 +/***************************************************************************** + * + * SetQueueSizes - configure the sizes of rx and tx queues + * + * Description: + * This function assigns the sizes for active and passive port + * to the appropriate HWinit structure variables. + * The passive port(s) get standard values, all remaining RAM + * is given to the active port. + * The queue sizes are in kbyte and must be multiple of 8. + * The limits for the number of buffers filled into the rx rings + * is also set in this routine. + * + * Returns: + * none + */ +static void SetQueueSizes( +SK_AC *pAC) /* pointer to the adapter context */ +{ +int StandbyRam; /* adapter RAM used for a standby port */ +int RemainingRam; /* adapter RAM available for the active port */ +int RxRam; /* RAM used for the active port receive queue */ +int i; /* loop counter */ + +if (pAC->RlmtNets == 1) { + StandbyRam = SK_RLMT_STANDBY_QRXSIZE + SK_RLMT_STANDBY_QXASIZE + + SK_RLMT_STANDBY_QXSSIZE; + RemainingRam = pAC->GIni.GIRamSize - + (pAC->GIni.GIMacsFound-1) * StandbyRam; + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + pAC->GIni.GP[i].PRxQSize = SK_RLMT_STANDBY_QRXSIZE; + pAC->GIni.GP[i].PXSQSize = SK_RLMT_STANDBY_QXSSIZE; + pAC->GIni.GP[i].PXAQSize = SK_RLMT_STANDBY_QXASIZE; + } + RxRam = (RemainingRam * 8 / 10) & ~7; + pAC->GIni.GP[pAC->ActivePort].PRxQSize = RxRam; + pAC->GIni.GP[pAC->ActivePort].PXSQSize = 0; + pAC->GIni.GP[pAC->ActivePort].PXAQSize = + (RemainingRam - RxRam) & ~7; + pAC->RxQueueSize = RxRam; + pAC->TxSQueueSize = 0; + pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7; + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("queue sizes settings - rx:%d txA:%d txS:%d\n", + pAC->RxQueueSize,pAC->TxAQueueSize, pAC->TxSQueueSize)); +} else { + RemainingRam = pAC->GIni.GIRamSize/pAC->GIni.GIMacsFound; + RxRam = (RemainingRam * 8 / 10) & ~7; + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + pAC->GIni.GP[i].PRxQSize = RxRam; + pAC->GIni.GP[i].PXSQSize = 0; + pAC->GIni.GP[i].PXAQSize = (RemainingRam - RxRam) & ~7; + } + + pAC->RxQueueSize = RxRam; + pAC->TxSQueueSize = 0; + pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7; +} + for (i=0; i<SK_MAX_MACS; i++) { + pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing; + } + + if (pAC->RlmtNets == 2) { + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100; + } + } else { + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100; + } + /* + * Do not set the Limit to 0, because this could cause + * wrap around with ReQueue'ed buffers (a buffer could + * be requeued in the same position, made accessable to + * the hardware, and the hardware could change its + * contents! + */ + pAC->RxPort[pAC->ActivePort].RxFillLimit = 1; + } + +#ifdef DEBUG + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, + ("i: %d, RxQSize: %d, PXSQsize: %d, PXAQSize: %d\n", + i, + pAC->GIni.GP[i].PRxQSize, + pAC->GIni.GP[i].PXSQSize, + pAC->GIni.GP[i].PXAQSize)); + } +#endif +} /* SetQueueSizes */ + + +/***************************************************************************** + * + * SkGeSetMacAddr - Set the hardware MAC address + * + * Description: + * This function sets the MAC address used by the adapter. + * + * Returns: + * 0, if everything is ok + * !=0, on error + */ +static int SkGeSetMacAddr(struct SK_NET_DEVICE *dev, void *p) +{ + +DEV_NET *pNet = (DEV_NET*) dev->priv; +SK_AC *pAC = pNet->pAC; + +struct sockaddr *addr = p; +unsigned long Flags; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeSetMacAddr starts now...\n")); + if(netif_running(dev)) + return -EBUSY; + + memcpy(dev->dev_addr, addr->sa_data,dev->addr_len); + + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + + if (pAC->RlmtNets == 2) + SkAddrOverride(pAC, pAC->IoBase, pNet->NetNr, + (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS); + else + SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort, + (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS); + + + + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + return 0; +} /* SkGeSetMacAddr */ +#endif + + +/***************************************************************************** + * + * SkGeSetRxMode - set receive mode + * + * Description: + * This function sets the receive mode of an adapter. The adapter + * supports promiscuous mode, allmulticast mode and a number of + * multicast addresses. If more multicast addresses the available + * are selected, a hash function in the hardware is used. + * + * Returns: + * 0, if everything is ok + * !=0, on error + */ +#if 0 +static void SkGeSetRxMode(struct SK_NET_DEVICE *dev) +{ + +DEV_NET *pNet; +SK_AC *pAC; + +struct dev_mc_list *pMcList; +int i; +int PortIdx; +unsigned long Flags; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeSetRxMode starts now... ")); + + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + if (pAC->RlmtNets == 1) + PortIdx = pAC->ActivePort; + else + PortIdx = pNet->NetNr; + + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + if (dev->flags & IFF_PROMISC) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("PROMISCUOUS mode\n")); + SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx, + SK_PROM_MODE_LLC); + } else if (dev->flags & IFF_ALLMULTI) { + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("ALLMULTI mode\n")); + SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx, + SK_PROM_MODE_ALL_MC); + } else { + SkAddrPromiscuousChange(pAC, pAC->IoBase, PortIdx, + SK_PROM_MODE_NONE); + SkAddrMcClear(pAC, pAC->IoBase, PortIdx, 0); + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("Number of MC entries: %d ", dev->mc_count)); + + pMcList = dev->mc_list; + for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) { + SkAddrMcAdd(pAC, pAC->IoBase, PortIdx, + (SK_MAC_ADDR*)pMcList->dmi_addr, 0); + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA, + ("%02x:%02x:%02x:%02x:%02x:%02x\n", + pMcList->dmi_addr[0], + pMcList->dmi_addr[1], + pMcList->dmi_addr[2], + pMcList->dmi_addr[3], + pMcList->dmi_addr[4], + pMcList->dmi_addr[5])); + } + SkAddrMcUpdate(pAC, pAC->IoBase, PortIdx); + } + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + + return; +} /* SkGeSetRxMode */ + + +/***************************************************************************** + * + * SkGeChangeMtu - set the MTU to another value + * + * Description: + * This function sets is called whenever the MTU size is changed + * (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard + * ethernet MTU size, long frame support is activated. + * + * Returns: + * 0, if everything is ok + * !=0, on error + */ +static int SkGeChangeMtu(struct SK_NET_DEVICE *dev, int NewMtu) +{ +DEV_NET *pNet; +DEV_NET *pOtherNet; +SK_AC *pAC; +unsigned long Flags; +int i; +SK_EVPARA EvPara; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeChangeMtu starts now...\n")); + + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + + if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) { + return -EINVAL; + } + + if(pAC->BoardLevel != 2) { + return -EINVAL; + } + + pNet->Mtu = NewMtu; + pOtherNet = (DEV_NET*)pAC->dev[1 - pNet->NetNr]->priv; + if ((pOtherNet->Mtu > 1500) && (NewMtu <= 1500) && (pOtherNet->Up==1)) { + return(0); + } + + EvPara.Para32[0] = pNet->NetNr; + EvPara.Para32[1] = -1; + + pAC->RxBufSize = NewMtu + 32; + dev->mtu = NewMtu; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("New MTU: %d\n", NewMtu)); + + /* prevent reconfiguration while changing the MTU */ + + /* disable interrupts */ + SK_OUT32(pAC->IoBase, B0_IMSK, 0); + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + + /* Found more than one port */ + if ((pAC->GIni.GIMacsFound == 2 ) && + (pAC->RlmtNets == 2)) { + /* Stop both ports */ + EvPara.Para32[0] = 0; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara); + EvPara.Para32[0] = 1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara); + } else { + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara); + } + + SkEventDispatcher(pAC, pAC->IoBase); + + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + spin_lock_irqsave( + &pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock, Flags); + netif_stop_queue(pAC->dev[i]); + + } + + /* + * adjust number of rx buffers allocated + */ + if (NewMtu > 1500) { + /* use less rx buffers */ + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + /* Found more than one port */ + if ((pAC->GIni.GIMacsFound == 2 ) && + (pAC->RlmtNets == 2)) { + pAC->RxPort[i].RxFillLimit = + pAC->RxDescrPerRing - 100; + } else { + if (i == pAC->ActivePort) + pAC->RxPort[i].RxFillLimit = + pAC->RxDescrPerRing - 100; + else + pAC->RxPort[i].RxFillLimit = + pAC->RxDescrPerRing - 10; + } + } + } + else { + /* use normal amount of rx buffers */ + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + /* Found more than one port */ + if ((pAC->GIni.GIMacsFound == 2 ) && + (pAC->RlmtNets == 2)) { + pAC->RxPort[i].RxFillLimit = 1; + } else { + if (i == pAC->ActivePort) + pAC->RxPort[i].RxFillLimit = 1; + else + pAC->RxPort[i].RxFillLimit = + pAC->RxDescrPerRing - 100; + } + } + } + + SkGeDeInit(pAC, pAC->IoBase); + + /* + * enable/disable hardware support for long frames + */ + if (NewMtu > 1500) { +// pAC->JumboActivated = SK_TRUE; /* is never set back !!! */ + pAC->GIni.GIPortUsage = SK_JUMBO_LINK; + } + else { + if ((pAC->GIni.GIMacsFound == 2 ) && + (pAC->RlmtNets == 2)) { + pAC->GIni.GIPortUsage = SK_MUL_LINK; + } else { + pAC->GIni.GIPortUsage = SK_RED_LINK; + } + } + + SkGeInit( pAC, pAC->IoBase, 1); + SkI2cInit( pAC, pAC->IoBase, 1); + SkEventInit(pAC, pAC->IoBase, 1); + SkPnmiInit( pAC, pAC->IoBase, 1); + SkAddrInit( pAC, pAC->IoBase, 1); + SkRlmtInit( pAC, pAC->IoBase, 1); + SkTimerInit(pAC, pAC->IoBase, 1); + + /* + * tschilling: + * Speed and others are set back to default in level 1 init! + */ + GetConfiguration(pAC); + + SkGeInit( pAC, pAC->IoBase, 2); + SkI2cInit( pAC, pAC->IoBase, 2); + SkEventInit(pAC, pAC->IoBase, 2); + SkPnmiInit( pAC, pAC->IoBase, 2); + SkAddrInit( pAC, pAC->IoBase, 2); + SkRlmtInit( pAC, pAC->IoBase, 2); + SkTimerInit(pAC, pAC->IoBase, 2); + + /* + * clear and reinit the rx rings here + */ + for (i=0; i<pAC->GIni.GIMacsFound; i++) { + ReceiveIrq(pAC, &pAC->RxPort[i], SK_TRUE); + ClearRxRing(pAC, &pAC->RxPort[i]); + FillRxRing(pAC, &pAC->RxPort[i]); + + /* Enable transmit descriptor polling. */ + SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE); + FillRxRing(pAC, &pAC->RxPort[i]); + }; + + SkGeYellowLED(pAC, pAC->IoBase, 1); + +#ifdef USE_INT_MOD + { + unsigned long ModBase; + ModBase = 53125000 / INTS_PER_SEC; + SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase); + SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK); + SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START); + } +#endif + + netif_start_queue(pAC->dev[pNet->PortNr]); + for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) { + spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock); + } + + /* enable Interrupts */ + SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK); + SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK); + + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara); + SkEventDispatcher(pAC, pAC->IoBase); + + /* Found more than one port */ + if ((pAC->GIni.GIMacsFound == 2 ) && + (pAC->RlmtNets == 2)) { + /* Start both ports */ + EvPara.Para32[0] = pAC->RlmtNets; + EvPara.Para32[1] = -1; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_SET_NETS, + EvPara); + + + EvPara.Para32[1] = -1; + EvPara.Para32[0] = pNet->PortNr; + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara); + + if (pOtherNet->Up) { + EvPara.Para32[0] = pOtherNet->PortNr; + SkEventQueue(pAC, SKGE_RLMT, + SK_RLMT_START, EvPara); + } + } else { + SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara); + } + + SkEventDispatcher(pAC, pAC->IoBase); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + + return 0; +} /* SkGeChangeMtu */ + + +/***************************************************************************** + * + * SkGeStats - return ethernet device statistics + * + * Description: + * This function return statistic data about the ethernet device + * to the operating system. + * + * Returns: + * pointer to the statistic structure. + */ +static struct net_device_stats *SkGeStats(struct SK_NET_DEVICE *dev) +{ +DEV_NET *pNet = (DEV_NET*) dev->priv; +SK_AC *pAC = pNet->pAC; +SK_PNMI_STRUCT_DATA *pPnmiStruct; /* structure for all Pnmi-Data */ +SK_PNMI_STAT *pPnmiStat; /* pointer to virtual XMAC stat. data */ +SK_PNMI_CONF *pPnmiConf; /* pointer to virtual link config. */ +unsigned int Size; /* size of pnmi struct */ +unsigned long Flags; /* for spin lock */ + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeStats starts now...\n")); + pPnmiStruct = &pAC->PnmiStruct; + memset(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA)); + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + Size = SK_PNMI_STRUCT_SIZE; + SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size, pNet->NetNr); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + pPnmiStat = &pPnmiStruct->Stat[0]; + pPnmiConf = &pPnmiStruct->Conf[0]; + + pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF; + pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF; + pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts; + pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts; + + if (pNet->Mtu <= 1500) { + pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF; + } else { + pAC->stats.rx_errors = (SK_U32) ((pPnmiStruct->InErrorsCts - + pPnmiStat->StatRxTooLongCts) & 0xFFFFFFFF); + } + + + if (pAC->GIni.GP[0].PhyType == SK_PHY_XMAC && pAC->HWRevision < 12) + pAC->stats.rx_errors = pAC->stats.rx_errors - pPnmiStat->StatRxShortsCts; + + pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF; + pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF; + pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF; + pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF; + pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF; + + /* detailed rx_errors: */ + pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF; + pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF; + pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF; + pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF; + pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF; + pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF; + + /* detailed tx_errors */ + pAC->stats.tx_aborted_errors = (SK_U32) 0; + pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF; + pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF; + pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF; + pAC->stats.tx_window_errors = (SK_U32) 0; + + return(&pAC->stats); +} /* SkGeStats */ + + +/***************************************************************************** + * + * SkGeIoctl - IO-control function + * + * Description: + * This function is called if an ioctl is issued on the device. + * There are three subfunction for reading, writing and test-writing + * the private MIB data structure (usefull for SysKonnect-internal tools). + * + * Returns: + * 0, if everything is ok + * !=0, on error + */ +static int SkGeIoctl(struct SK_NET_DEVICE *dev, struct ifreq *rq, int cmd) +{ +DEV_NET *pNet; +SK_AC *pAC; + +SK_GE_IOCTL Ioctl; +unsigned int Err = 0; +int Size; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeIoctl starts now...\n")); + + pNet = (DEV_NET*) dev->priv; + pAC = pNet->pAC; + + if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) { + return -EFAULT; + } + + switch(cmd) { + case SK_IOCTL_SETMIB: + case SK_IOCTL_PRESETMIB: + if (!capable(CAP_NET_ADMIN)) return -EPERM; + case SK_IOCTL_GETMIB: + if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData, + Ioctl.Len<sizeof(pAC->PnmiStruct)? + Ioctl.Len : sizeof(pAC->PnmiStruct))) { + return -EFAULT; + } + Size = SkGeIocMib(pNet, Ioctl.Len, cmd); + if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct, + Ioctl.Len<Size? Ioctl.Len : Size)) { + return -EFAULT; + } + Ioctl.Len = Size; + if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) { + return -EFAULT; + } + break; + default: + Err = -EOPNOTSUPP; + } + return(Err); +} /* SkGeIoctl */ + + +/***************************************************************************** + * + * SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message + * + * Description: + * This function reads/writes the MIB data using PNMI (Private Network + * Management Interface). + * The destination for the data must be provided with the + * ioctl call and is given to the driver in the form of + * a user space address. + * Copying from the user-provided data area into kernel messages + * and back is done by copy_from_user and copy_to_user calls in + * SkGeIoctl. + * + * Returns: + * returned size from PNMI call + */ +static int SkGeIocMib( +DEV_NET *pNet, /* pointer to the adapter context */ +unsigned int Size, /* length of ioctl data */ +int mode) /* flag for set/preset */ +{ +unsigned long Flags; /* for spin lock */ +SK_AC *pAC; + + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("SkGeIocMib starts now...\n")); + pAC = pNet->pAC; + /* access MIB */ + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + switch(mode) { + case SK_IOCTL_GETMIB: + SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size, + pNet->NetNr); + break; + case SK_IOCTL_PRESETMIB: + SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size, + pNet->NetNr); + break; + case SK_IOCTL_SETMIB: + SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size, + pNet->NetNr); + break; + default: + break; + } + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY, + ("MIB data access succeeded\n")); + return (Size); +} /* SkGeIocMib */ +#endif + + +/***************************************************************************** + * + * GetConfiguration - read configuration information + * + * Description: + * This function reads per-adapter configuration information from + * the options provided on the command line. + * + * Returns: + * none + */ +static void GetConfiguration( +SK_AC *pAC) /* pointer to the adapter context structure */ +{ +SK_I32 Port; /* preferred port */ +int LinkSpeed; /* Link speed */ +int AutoNeg; /* auto negotiation off (0) or on (1) */ +int DuplexCap; /* duplex capabilities (0=both, 1=full, 2=half */ +int MSMode; /* master / slave mode selection */ +SK_BOOL AutoSet; +SK_BOOL DupSet; +/* + * The two parameters AutoNeg. and DuplexCap. map to one configuration + * parameter. The mapping is described by this table: + * DuplexCap -> | both | full | half | + * AutoNeg | | | | + * ----------------------------------------------------------------- + * Off | illegal | Full | Half | + * ----------------------------------------------------------------- + * On | AutoBoth | AutoFull | AutoHalf | + * ----------------------------------------------------------------- + * Sense | AutoSense | AutoSense | AutoSense | + */ +int Capabilities[3][3] = + { { -1, SK_LMODE_FULL, SK_LMODE_HALF}, + {SK_LMODE_AUTOBOTH, SK_LMODE_AUTOFULL, SK_LMODE_AUTOHALF}, + {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} }; +#define DC_BOTH 0 +#define DC_FULL 1 +#define DC_HALF 2 +#define AN_OFF 0 +#define AN_ON 1 +#define AN_SENS 2 + + /* settings for port A */ + /* settings link speed */ + LinkSpeed = SK_LSPEED_AUTO; /* default: do auto select */ + if (Speed_A != NULL && pAC->Index<SK_MAX_CARD_PARAM && + Speed_A[pAC->Index] != NULL) { + if (strcmp(Speed_A[pAC->Index],"")==0) { + LinkSpeed = SK_LSPEED_AUTO; + } + else if (strcmp(Speed_A[pAC->Index],"Auto")==0) { + LinkSpeed = SK_LSPEED_AUTO; + } + else if (strcmp(Speed_A[pAC->Index],"10")==0) { + LinkSpeed = SK_LSPEED_10MBPS; + } + else if (strcmp(Speed_A[pAC->Index],"100")==0) { + LinkSpeed = SK_LSPEED_100MBPS; + } + else if (strcmp(Speed_A[pAC->Index],"1000")==0) { + LinkSpeed = SK_LSPEED_1000MBPS; + } + else printk("%s: Illegal value for Speed_A\n", + pAC->dev[0]->name); + } + + /* Check speed parameter */ + /* Only copper type adapter and GE V2 cards */ + if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) || + (pAC->GIni.GICopperType != SK_TRUE)) && + ((LinkSpeed != SK_LSPEED_AUTO) && + (LinkSpeed != SK_LSPEED_1000MBPS))) { + printk("%s: Illegal value for Speed_A. " + "Not a copper card or GE V2 card\n Using " + "speed 1000\n", pAC->dev[0]->name); + LinkSpeed = SK_LSPEED_1000MBPS; + } + pAC->GIni.GP[0].PLinkSpeed = LinkSpeed; + + /* Autonegotiation */ + AutoNeg = AN_ON; /* tschilling: Default: Autonegotiation on! */ + AutoSet = SK_FALSE; + if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM && + AutoNeg_A[pAC->Index] != NULL) { + AutoSet = SK_TRUE; + if (strcmp(AutoNeg_A[pAC->Index],"")==0) { + AutoSet = SK_FALSE; + } + else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) { + AutoNeg = AN_ON; + } + else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) { + AutoNeg = AN_OFF; + } + else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) { + AutoNeg = AN_SENS; + } + else printk("%s: Illegal value for AutoNeg_A\n", + pAC->dev[0]->name); + } + + DuplexCap = DC_BOTH; + DupSet = SK_FALSE; + if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM && + DupCap_A[pAC->Index] != NULL) { + DupSet = SK_TRUE; + if (strcmp(DupCap_A[pAC->Index],"")==0) { + DupSet = SK_FALSE; + } + else if (strcmp(DupCap_A[pAC->Index],"Both")==0) { + DuplexCap = DC_BOTH; + } + else if (strcmp(DupCap_A[pAC->Index],"Full")==0) { + DuplexCap = DC_FULL; + } + else if (strcmp(DupCap_A[pAC->Index],"Half")==0) { + DuplexCap = DC_HALF; + } + else printk("%s: Illegal value for DupCap_A\n", + pAC->dev[0]->name); + } + + /* check for illegal combinations */ + if (AutoSet && AutoNeg==AN_SENS && DupSet) { + printk("%s, Port A: DuplexCapabilities" + " ignored using Sense mode\n", pAC->dev[0]->name); + } + if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){ + printk("%s, Port A: Illegal combination" + " of values AutoNeg. and DuplexCap.\n Using " + "Full Duplex\n", pAC->dev[0]->name); + + DuplexCap = DC_FULL; + } + if (AutoSet && AutoNeg==AN_OFF && !DupSet) { + DuplexCap = DC_FULL; + } + + if (!AutoSet && DupSet) { + printk("%s, Port A: Duplex setting not" + " possible in\n default AutoNegotiation mode" + " (Sense).\n Using AutoNegotiation On\n", + pAC->dev[0]->name); + AutoNeg = AN_ON; + } + + /* set the desired mode */ + pAC->GIni.GP[0].PLinkModeConf = + Capabilities[AutoNeg][DuplexCap]; + + pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM; + if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM && + FlowCtrl_A[pAC->Index] != NULL) { + if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) { + } + else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) { + pAC->GIni.GP[0].PFlowCtrlMode = + SK_FLOW_MODE_SYM_OR_REM; + } + else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) { + pAC->GIni.GP[0].PFlowCtrlMode = + SK_FLOW_MODE_SYMMETRIC; + } + else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) { + pAC->GIni.GP[0].PFlowCtrlMode = + SK_FLOW_MODE_LOC_SEND; + } + else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) { + pAC->GIni.GP[0].PFlowCtrlMode = + SK_FLOW_MODE_NONE; + } + else printk("Illegal value for FlowCtrl_A\n"); + } + if (AutoNeg==AN_OFF && pAC->GIni.GP[0].PFlowCtrlMode!= + SK_FLOW_MODE_NONE) { + printk("%s, Port A: FlowControl" + " impossible without AutoNegotiation," + " disabled\n", pAC->dev[0]->name); + pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_NONE; + } + + MSMode = SK_MS_MODE_AUTO; /* default: do auto select */ + if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM && + Role_A[pAC->Index] != NULL) { + if (strcmp(Role_A[pAC->Index],"")==0) { + } + else if (strcmp(Role_A[pAC->Index],"Auto")==0) { + MSMode = SK_MS_MODE_AUTO; + } + else if (strcmp(Role_A[pAC->Index],"Master")==0) { + MSMode = SK_MS_MODE_MASTER; + } + else if (strcmp(Role_A[pAC->Index],"Slave")==0) { + MSMode = SK_MS_MODE_SLAVE; + } + else printk("%s: Illegal value for Role_A\n", + pAC->dev[0]->name); + } + pAC->GIni.GP[0].PMSMode = MSMode; + + + /* settings for port B */ + /* settings link speed */ + LinkSpeed = SK_LSPEED_AUTO; /* default: do auto select */ + if (Speed_B != NULL && pAC->Index<SK_MAX_CARD_PARAM && + Speed_B[pAC->Index] != NULL) { + if (strcmp(Speed_B[pAC->Index],"")==0) { + LinkSpeed = SK_LSPEED_AUTO; + } + else if (strcmp(Speed_B[pAC->Index],"Auto")==0) { + LinkSpeed = SK_LSPEED_AUTO; + } + else if (strcmp(Speed_B[pAC->Index],"10")==0) { + LinkSpeed = SK_LSPEED_10MBPS; + } + else if (strcmp(Speed_B[pAC->Index],"100")==0) { + LinkSpeed = SK_LSPEED_100MBPS; + } + else if (strcmp(Speed_B[pAC->Index],"1000")==0) { + LinkSpeed = SK_LSPEED_1000MBPS; + } + else printk("%s: Illegal value for Speed_B\n", + pAC->dev[1]->name); + } + + /* Check speed parameter */ + /* Only copper type adapter and GE V2 cards */ + if (((pAC->GIni.GIChipId != CHIP_ID_YUKON) || + (pAC->GIni.GICopperType != SK_TRUE)) && + ((LinkSpeed != SK_LSPEED_AUTO) && + (LinkSpeed != SK_LSPEED_1000MBPS))) { + printk("%s: Illegal value for Speed_B. " + "Not a copper card or GE V2 card\n Using " + "speed 1000\n", pAC->dev[1]->name); + LinkSpeed = SK_LSPEED_1000MBPS; + } + pAC->GIni.GP[1].PLinkSpeed = LinkSpeed; + + /* Auto negotiation */ + AutoNeg = AN_SENS; /* default: do auto Sense */ + AutoSet = SK_FALSE; + if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM && + AutoNeg_B[pAC->Index] != NULL) { + AutoSet = SK_TRUE; + if (strcmp(AutoNeg_B[pAC->Index],"")==0) { + AutoSet = SK_FALSE; + } + else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) { + AutoNeg = AN_ON; + } + else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) { + AutoNeg = AN_OFF; + } + else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) { + AutoNeg = AN_SENS; + } + else printk("Illegal value for AutoNeg_B\n"); + } + + DuplexCap = DC_BOTH; + DupSet = SK_FALSE; + if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM && + DupCap_B[pAC->Index] != NULL) { + DupSet = SK_TRUE; + if (strcmp(DupCap_B[pAC->Index],"")==0) { + DupSet = SK_FALSE; + } + else if (strcmp(DupCap_B[pAC->Index],"Both")==0) { + DuplexCap = DC_BOTH; + } + else if (strcmp(DupCap_B[pAC->Index],"Full")==0) { + DuplexCap = DC_FULL; + } + else if (strcmp(DupCap_B[pAC->Index],"Half")==0) { + DuplexCap = DC_HALF; + } + else printk("Illegal value for DupCap_B\n"); + } + + /* check for illegal combinations */ + if (AutoSet && AutoNeg==AN_SENS && DupSet) { + printk("%s, Port B: DuplexCapabilities" + " ignored using Sense mode\n", pAC->dev[1]->name); + } + if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){ + printk("%s, Port B: Illegal combination" + " of values AutoNeg. and DuplexCap.\n Using " + "Full Duplex\n", pAC->dev[1]->name); + + DuplexCap = DC_FULL; + } + if (AutoSet && AutoNeg==AN_OFF && !DupSet) { + DuplexCap = DC_FULL; + } + + if (!AutoSet && DupSet) { + printk("%s, Port B: Duplex setting not" + " possible in\n default AutoNegotiation mode" + " (Sense).\n Using AutoNegotiation On\n", + pAC->dev[1]->name); + AutoNeg = AN_ON; + } + + /* set the desired mode */ + pAC->GIni.GP[1].PLinkModeConf = + Capabilities[AutoNeg][DuplexCap]; + + pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM; + if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM && + FlowCtrl_B[pAC->Index] != NULL) { + if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) { + } + else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) { + pAC->GIni.GP[1].PFlowCtrlMode = + SK_FLOW_MODE_SYM_OR_REM; + } + else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) { + pAC->GIni.GP[1].PFlowCtrlMode = + SK_FLOW_MODE_SYMMETRIC; + } + else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) { + pAC->GIni.GP[1].PFlowCtrlMode = + SK_FLOW_MODE_LOC_SEND; + } + else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) { + pAC->GIni.GP[1].PFlowCtrlMode = + SK_FLOW_MODE_NONE; + } + else printk("Illegal value for FlowCtrl_B\n"); + } + if (AutoNeg==AN_OFF && pAC->GIni.GP[1].PFlowCtrlMode!= + SK_FLOW_MODE_NONE) { + printk("%s, Port B: FlowControl" + " impossible without AutoNegotiation," + " disabled\n", pAC->dev[1]->name); + pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_NONE; + } + + MSMode = SK_MS_MODE_AUTO; /* default: do auto select */ + if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM && + Role_B[pAC->Index] != NULL) { + if (strcmp(Role_B[pAC->Index],"")==0) { + } + else if (strcmp(Role_B[pAC->Index],"Auto")==0) { + MSMode = SK_MS_MODE_AUTO; + } + else if (strcmp(Role_B[pAC->Index],"Master")==0) { + MSMode = SK_MS_MODE_MASTER; + } + else if (strcmp(Role_B[pAC->Index],"Slave")==0) { + MSMode = SK_MS_MODE_SLAVE; + } + else printk("%s: Illegal value for Role_B\n", + pAC->dev[1]->name); + } + pAC->GIni.GP[1].PMSMode = MSMode; + + + /* settings for both ports */ + pAC->ActivePort = 0; + if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM && + PrefPort[pAC->Index] != NULL) { + if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */ + pAC->ActivePort = 0; + pAC->Rlmt.Net[0].Preference = -1; /* auto */ + pAC->Rlmt.Net[0].PrefPort = 0; + } + else if (strcmp(PrefPort[pAC->Index],"A") == 0) { + /* + * do not set ActivePort here, thus a port + * switch is issued after net up. + */ + Port = 0; + pAC->Rlmt.Net[0].Preference = Port; + pAC->Rlmt.Net[0].PrefPort = Port; + } + else if (strcmp(PrefPort[pAC->Index],"B") == 0) { + /* + * do not set ActivePort here, thus a port + * switch is issued after net up. + */ + Port = 1; + pAC->Rlmt.Net[0].Preference = Port; + pAC->Rlmt.Net[0].PrefPort = Port; + } + else printk("%s: Illegal value for PrefPort\n", + pAC->dev[0]->name); + } + + pAC->RlmtNets = 1; + + if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM && + RlmtMode[pAC->Index] != NULL) { + if (strcmp(RlmtMode[pAC->Index], "") == 0) { + pAC->RlmtMode = 0; + } + else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) { + pAC->RlmtMode = SK_RLMT_CHECK_LINK; + } + else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) { + pAC->RlmtMode = SK_RLMT_CHECK_LINK | + SK_RLMT_CHECK_LOC_LINK; + } + else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) { + pAC->RlmtMode = SK_RLMT_CHECK_LINK | + SK_RLMT_CHECK_LOC_LINK | + SK_RLMT_CHECK_SEG; + } + else if ((strcmp(RlmtMode[pAC->Index], "DualNet") == 0) && + (pAC->GIni.GIMacsFound == 2)) { + pAC->RlmtMode = SK_RLMT_CHECK_LINK; + pAC->RlmtNets = 2; + } + else { + printk("%s: Illegal value for" + " RlmtMode, using default\n", pAC->dev[0]->name); + pAC->RlmtMode = 0; + } + } + else { + pAC->RlmtMode = 0; + } +} /* GetConfiguration */ + + +/***************************************************************************** + * + * ProductStr - return a adapter identification string from vpd + * + * Description: + * This function reads the product name string from the vpd area + * and puts it the field pAC->DeviceString. + * + * Returns: N/A + */ +static void ProductStr( +SK_AC *pAC /* pointer to adapter context */ +) +{ +int StrLen = 80; /* length of the string, defined in SK_AC */ +char Keyword[] = VPD_NAME; /* vpd productname identifier */ +int ReturnCode; /* return code from vpd_read */ +unsigned long Flags; + + spin_lock_irqsave(&pAC->SlowPathLock, Flags); + ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, pAC->DeviceStr, + &StrLen); + spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); + if (ReturnCode != 0) { + /* there was an error reading the vpd data */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR, + ("Error reading VPD data: %d\n", ReturnCode)); + pAC->DeviceStr[0] = '\0'; + } +} /* ProductStr */ + + + + +/****************************************************************************/ +/* functions for common modules *********************************************/ +/****************************************************************************/ + + +/***************************************************************************** + * + * SkDrvAllocRlmtMbuf - allocate an RLMT mbuf + * + * Description: + * This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure + * is embedded into a socket buff data area. + * + * Context: + * runtime + * + * Returns: + * NULL or pointer to Mbuf. + */ +SK_MBUF *SkDrvAllocRlmtMbuf( +SK_AC *pAC, /* pointer to adapter context */ +SK_IOC IoC, /* the IO-context */ +unsigned BufferSize) /* size of the requested buffer */ +{ +SK_MBUF *pRlmtMbuf; /* pointer to a new rlmt-mbuf structure */ +struct sk_buff *pMsgBlock; /* pointer to a new message block */ + + pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC); + if (pMsgBlock == NULL) { + return (NULL); + } + pRlmtMbuf = (SK_MBUF*) pMsgBlock->data; + skb_reserve(pMsgBlock, sizeof(SK_MBUF)); + pRlmtMbuf->pNext = NULL; + pRlmtMbuf->pOs = pMsgBlock; + pRlmtMbuf->pData = pMsgBlock->data; /* Data buffer. */ + pRlmtMbuf->Size = BufferSize; /* Data buffer size. */ + pRlmtMbuf->Length = 0; /* Length of packet (<= Size). */ + return (pRlmtMbuf); + +} /* SkDrvAllocRlmtMbuf */ + + +/***************************************************************************** + * + * SkDrvFreeRlmtMbuf - free an RLMT mbuf + * + * Description: + * This routine frees one or more RLMT mbuf(s). + * + * Context: + * runtime + * + * Returns: + * Nothing + */ +void SkDrvFreeRlmtMbuf( +SK_AC *pAC, /* pointer to adapter context */ +SK_IOC IoC, /* the IO-context */ +SK_MBUF *pMbuf) /* size of the requested buffer */ +{ +SK_MBUF *pFreeMbuf; +SK_MBUF *pNextMbuf; + + pFreeMbuf = pMbuf; + do { + pNextMbuf = pFreeMbuf->pNext; + DEV_KFREE_SKB_ANY(pFreeMbuf->pOs); + pFreeMbuf = pNextMbuf; + } while ( pFreeMbuf != NULL ); +} /* SkDrvFreeRlmtMbuf */ + + +/***************************************************************************** + * + * SkOsGetTime - provide a time value + * + * Description: + * This routine provides a time value. The unit is 1/HZ (defined by Linux). + * It is not used for absolute time, but only for time differences. + * + * + * Returns: + * Time value + */ +SK_U64 SkOsGetTime(SK_AC *pAC) +{ +#if 0 + return jiffies; +#else + return get_timer(0); +#endif +} /* SkOsGetTime */ + + +/***************************************************************************** + * + * SkPciReadCfgDWord - read a 32 bit value from pci config space + * + * Description: + * This routine reads a 32 bit value from the pci configuration + * space. + * + * Returns: + * 0 - indicate everything worked ok. + * != 0 - error indication + */ +int SkPciReadCfgDWord( +SK_AC *pAC, /* Adapter Control structure pointer */ +int PciAddr, /* PCI register address */ +SK_U32 *pVal) /* pointer to store the read value */ +{ + pci_read_config_dword(pAC->PciDev, PciAddr, pVal); + return(0); +} /* SkPciReadCfgDWord */ + + +/***************************************************************************** + * + * SkPciReadCfgWord - read a 16 bit value from pci config space + * + * Description: + * This routine reads a 16 bit value from the pci configuration + * space. + * + * Returns: + * 0 - indicate everything worked ok. + * != 0 - error indication + */ +int SkPciReadCfgWord( +SK_AC *pAC, /* Adapter Control structure pointer */ +int PciAddr, /* PCI register address */ +SK_U16 *pVal) /* pointer to store the read value */ +{ + pci_read_config_word(pAC->PciDev, PciAddr, pVal); + return(0); +} /* SkPciReadCfgWord */ + + +/***************************************************************************** + * + * SkPciReadCfgByte - read a 8 bit value from pci config space + * + * Description: + * This routine reads a 8 bit value from the pci configuration + * space. + * + * Returns: + * 0 - indicate everything worked ok. + * != 0 - error indication + */ +int SkPciReadCfgByte( +SK_AC *pAC, /* Adapter Control structure pointer */ +int PciAddr, /* PCI register address */ +SK_U8 *pVal) /* pointer to store the read value */ +{ + pci_read_config_byte(pAC->PciDev, PciAddr, pVal); + return(0); +} /* SkPciReadCfgByte */ + + +/***************************************************************************** + * + * SkPciWriteCfgDWord - write a 32 bit value to pci config space + * + * Description: + * This routine writes a 32 bit value to the pci configuration + * space. + * + * Returns: + * 0 - indicate everything worked ok. + * != 0 - error indication + */ +int SkPciWriteCfgDWord( +SK_AC *pAC, /* Adapter Control structure pointer */ +int PciAddr, /* PCI register address */ +SK_U32 Val) /* pointer to store the read value */ +{ + pci_write_config_dword(pAC->PciDev, PciAddr, Val); + return(0); +} /* SkPciWriteCfgDWord */ + + +/***************************************************************************** + * + * SkPciWriteCfgWord - write a 16 bit value to pci config space + * + * Description: + * This routine writes a 16 bit value to the pci configuration + * space. The flag PciConfigUp indicates whether the config space + * is accesible or must be set up first. + * + * Returns: + * 0 - indicate everything worked ok. + * != 0 - error indication + */ +int SkPciWriteCfgWord( +SK_AC *pAC, /* Adapter Control structure pointer */ +int PciAddr, /* PCI register address */ +SK_U16 Val) /* pointer to store the read value */ +{ + pci_write_config_word(pAC->PciDev, PciAddr, Val); + return(0); +} /* SkPciWriteCfgWord */ + + +/***************************************************************************** + * + * SkPciWriteCfgWord - write a 8 bit value to pci config space + * + * Description: + * This routine writes a 8 bit value to the pci configuration + * space. The flag PciConfigUp indicates whether the config space + * is accesible or must be set up first. + * + * Returns: + * 0 - indicate everything worked ok. + * != 0 - error indication + */ +int SkPciWriteCfgByte( +SK_AC *pAC, /* Adapter Control structure pointer */ +int PciAddr, /* PCI register address */ +SK_U8 Val) /* pointer to store the read value */ +{ + pci_write_config_byte(pAC->PciDev, PciAddr, Val); + return(0); +} /* SkPciWriteCfgByte */ + + +/***************************************************************************** + * + * SkDrvEvent - handle driver events + * + * Description: + * This function handles events from all modules directed to the driver + * + * Context: + * Is called under protection of slow path lock. + * + * Returns: + * 0 if everything ok + * < 0 on error + * + */ +int SkDrvEvent( +SK_AC *pAC, /* pointer to adapter context */ +SK_IOC IoC, /* io-context */ +SK_U32 Event, /* event-id */ +SK_EVPARA Param) /* event-parameter */ +{ +SK_MBUF *pRlmtMbuf; /* pointer to a rlmt-mbuf structure */ +struct sk_buff *pMsg; /* pointer to a message block */ +int FromPort; /* the port from which we switch away */ +int ToPort; /* the port we switch to */ +SK_EVPARA NewPara; /* parameter for further events */ +#if 0 +int Stat; +#endif +unsigned long Flags; +SK_BOOL DualNet; + + switch (Event) { + case SK_DRV_ADAP_FAIL: + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("ADAPTER FAIL EVENT\n")); + printk("%s: Adapter failed.\n", pAC->dev[0]->name); + /* disable interrupts */ + SK_OUT32(pAC->IoBase, B0_IMSK, 0); + /* cgoos */ + break; + case SK_DRV_PORT_FAIL: + FromPort = Param.Para32[0]; + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("PORT FAIL EVENT, Port: %d\n", FromPort)); + if (FromPort == 0) { + printk("%s: Port A failed.\n", pAC->dev[0]->name); + } else { + printk("%s: Port B failed.\n", pAC->dev[1]->name); + } + /* cgoos */ + break; + case SK_DRV_PORT_RESET: /* SK_U32 PortIdx */ + /* action list 4 */ + FromPort = Param.Para32[0]; + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("PORT RESET EVENT, Port: %d ", FromPort)); + NewPara.Para64 = FromPort; + SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara); + spin_lock_irqsave( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST); +#if 0 + pAC->dev[Param.Para32[0]]->flags &= ~IFF_RUNNING; +#endif + spin_unlock_irqrestore( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + + /* clear rx ring from received frames */ + ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); + + ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]); + spin_lock_irqsave( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + + /* tschilling: Handling of return value inserted. */ + if (SkGeInitPort(pAC, IoC, FromPort)) { + if (FromPort == 0) { + printk("%s: SkGeInitPort A failed.\n", pAC->dev[0]->name); + } else { + printk("%s: SkGeInitPort B failed.\n", pAC->dev[1]->name); + } + } + SkAddrMcUpdate(pAC,IoC, FromPort); + PortReInitBmu(pAC, FromPort); + SkGePollTxD(pAC, IoC, FromPort, SK_TRUE); + ClearAndStartRx(pAC, FromPort); + spin_unlock_irqrestore( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + break; + case SK_DRV_NET_UP: /* SK_U32 PortIdx */ + /* action list 5 */ + FromPort = Param.Para32[0]; + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("NET UP EVENT, Port: %d ", Param.Para32[0])); +#ifdef SK98_INFO + printk("%s: network connection up using" + " port %c\n", pAC->dev[Param.Para32[0]]->name, 'A'+Param.Para32[0]); + + /* tschilling: Values changed according to LinkSpeedUsed. */ + Stat = pAC->GIni.GP[FromPort].PLinkSpeedUsed; + if (Stat == SK_LSPEED_STAT_10MBPS) { + printk(" speed: 10\n"); + } else if (Stat == SK_LSPEED_STAT_100MBPS) { + printk(" speed: 100\n"); + } else if (Stat == SK_LSPEED_STAT_1000MBPS) { + printk(" speed: 1000\n"); + } else { + printk(" speed: unknown\n"); + } + + Stat = pAC->GIni.GP[FromPort].PLinkModeStatus; + if (Stat == SK_LMODE_STAT_AUTOHALF || + Stat == SK_LMODE_STAT_AUTOFULL) { + printk(" autonegotiation: yes\n"); + } + else { + printk(" autonegotiation: no\n"); + } + if (Stat == SK_LMODE_STAT_AUTOHALF || + Stat == SK_LMODE_STAT_HALF) { + printk(" duplex mode: half\n"); + } + else { + printk(" duplex mode: full\n"); + } + Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus; + if (Stat == SK_FLOW_STAT_REM_SEND ) { + printk(" flowctrl: remote send\n"); + } + else if (Stat == SK_FLOW_STAT_LOC_SEND ){ + printk(" flowctrl: local send\n"); + } + else if (Stat == SK_FLOW_STAT_SYMMETRIC ){ + printk(" flowctrl: symmetric\n"); + } + else { + printk(" flowctrl: none\n"); + } + + /* tschilling: Check against CopperType now. */ + if ((pAC->GIni.GICopperType == SK_TRUE) && + (pAC->GIni.GP[FromPort].PLinkSpeedUsed == + SK_LSPEED_STAT_1000MBPS)) { + Stat = pAC->GIni.GP[FromPort].PMSStatus; + if (Stat == SK_MS_STAT_MASTER ) { + printk(" role: master\n"); + } + else if (Stat == SK_MS_STAT_SLAVE ) { + printk(" role: slave\n"); + } + else { + printk(" role: ???\n"); + } + } + +#ifdef SK_ZEROCOPY + if (pAC->GIni.GIChipId == CHIP_ID_YUKON) + printk(" scatter-gather: enabled\n"); + else + printk(" scatter-gather: disabled\n"); + +#else + printk(" scatter-gather: disabled\n"); +#endif +#endif /* SK98_INFO */ + + if ((Param.Para32[0] != pAC->ActivePort) && + (pAC->RlmtNets == 1)) { + NewPara.Para32[0] = pAC->ActivePort; + NewPara.Para32[1] = Param.Para32[0]; + SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN, + NewPara); + } + + /* Inform the world that link protocol is up. */ +#if 0 + pAC->dev[Param.Para32[0]]->flags |= IFF_RUNNING; +#endif + + break; + case SK_DRV_NET_DOWN: /* SK_U32 Reason */ + /* action list 7 */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("NET DOWN EVENT ")); +#ifdef SK98_INFO + printk("%s: network connection down\n", pAC->dev[Param.Para32[1]]->name); +#endif +#if 0 + pAC->dev[Param.Para32[1]]->flags &= ~IFF_RUNNING; +#endif + break; + case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("PORT SWITCH HARD ")); + case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */ + /* action list 6 */ + printk("%s: switching to port %c\n", pAC->dev[0]->name, + 'A'+Param.Para32[1]); + case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */ + FromPort = Param.Para32[0]; + ToPort = Param.Para32[1]; + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("PORT SWITCH EVENT, From: %d To: %d (Pref %d) ", + FromPort, ToPort, pAC->Rlmt.Net[0].PrefPort)); + NewPara.Para64 = FromPort; + SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara); + NewPara.Para64 = ToPort; + SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara); + spin_lock_irqsave( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + spin_lock_irqsave( + &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags); + SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST); + SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST); + spin_unlock_irqrestore( + &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags); + spin_unlock_irqrestore( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + + ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE); /* clears rx ring */ + ReceiveIrq(pAC, &pAC->RxPort[ToPort], SK_FALSE); /* clears rx ring */ + + ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]); + ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]); + spin_lock_irqsave( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + spin_lock_irqsave( + &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags); + pAC->ActivePort = ToPort; +#if 0 + SetQueueSizes(pAC); +#else + /* tschilling: New common function with minimum size check. */ + DualNet = SK_FALSE; + if (pAC->RlmtNets == 2) { + DualNet = SK_TRUE; + } + + if (SkGeInitAssignRamToQueues( + pAC, + pAC->ActivePort, + DualNet)) { + spin_unlock_irqrestore( + &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags); + spin_unlock_irqrestore( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + printk("SkGeInitAssignRamToQueues failed.\n"); + break; + } +#endif + /* tschilling: Handling of return values inserted. */ + if (SkGeInitPort(pAC, IoC, FromPort) || + SkGeInitPort(pAC, IoC, ToPort)) { + printk("%s: SkGeInitPort failed.\n", pAC->dev[0]->name); + } + if (Event == SK_DRV_SWITCH_SOFT) { + SkMacRxTxEnable(pAC, IoC, FromPort); + } + SkMacRxTxEnable(pAC, IoC, ToPort); + SkAddrSwap(pAC, IoC, FromPort, ToPort); + SkAddrMcUpdate(pAC, IoC, FromPort); + SkAddrMcUpdate(pAC, IoC, ToPort); + PortReInitBmu(pAC, FromPort); + PortReInitBmu(pAC, ToPort); + SkGePollTxD(pAC, IoC, FromPort, SK_TRUE); + SkGePollTxD(pAC, IoC, ToPort, SK_TRUE); + ClearAndStartRx(pAC, FromPort); + ClearAndStartRx(pAC, ToPort); + spin_unlock_irqrestore( + &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags); + spin_unlock_irqrestore( + &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock, + Flags); + break; + case SK_DRV_RLMT_SEND: /* SK_MBUF *pMb */ + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("RLS ")); + pRlmtMbuf = (SK_MBUF*) Param.pParaPtr; + pMsg = (struct sk_buff*) pRlmtMbuf->pOs; + skb_put(pMsg, pRlmtMbuf->Length); + if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW], + pMsg) < 0) + + DEV_KFREE_SKB_ANY(pMsg); + break; + default: + break; + } + SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT, + ("END EVENT ")); + + return (0); +} /* SkDrvEvent */ + + +/***************************************************************************** + * + * SkErrorLog - log errors + * + * Description: + * This function logs errors to the system buffer and to the console + * + * Returns: + * 0 if everything ok + * < 0 on error + * + */ +void SkErrorLog( +SK_AC *pAC, +int ErrClass, +int ErrNum, +char *pErrorMsg) +{ +char ClassStr[80]; + + switch (ErrClass) { + case SK_ERRCL_OTHER: + strcpy(ClassStr, "Other error"); + break; + case SK_ERRCL_CONFIG: + strcpy(ClassStr, "Configuration error"); + break; + case SK_ERRCL_INIT: + strcpy(ClassStr, "Initialization error"); + break; + case SK_ERRCL_NORES: + strcpy(ClassStr, "Out of resources error"); + break; + case SK_ERRCL_SW: + strcpy(ClassStr, "internal Software error"); + break; + case SK_ERRCL_HW: + strcpy(ClassStr, "Hardware failure"); + break; + case SK_ERRCL_COMM: + strcpy(ClassStr, "Communication error"); + break; + } + printk(KERN_INFO "%s: -- ERROR --\n Class: %s\n" + " Nr: 0x%x\n Msg: %s\n", pAC->dev[0]->name, + ClassStr, ErrNum, pErrorMsg); + +} /* SkErrorLog */ + +#ifdef DEBUG +/****************************************************************************/ +/* "debug only" section *****************************************************/ +/****************************************************************************/ + + +/***************************************************************************** + * + * DumpMsg - print a frame + * + * Description: + * This function prints frames to the system logfile/to the console. + * + * Returns: N/A + * + */ +static void DumpMsg(struct sk_buff *skb, char *str) +{ + int msglen; + + if (skb == NULL) { + printk("DumpMsg(): NULL-Message\n"); + return; + } + + if (skb->data == NULL) { + printk("DumpMsg(): Message empty\n"); + return; + } + + msglen = skb->len; + if (msglen > 64) + msglen = 64; + + printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len); + + DumpData((char *)skb->data, msglen); + + printk("------- End of message ---------\n"); +} /* DumpMsg */ + + + +/***************************************************************************** + * + * DumpData - print a data area + * + * Description: + * This function prints a area of data to the system logfile/to the + * console. + * + * Returns: N/A + * + */ +static void DumpData(char *p, int size) +{ +register int i; +int haddr, addr; +char hex_buffer[180]; +char asc_buffer[180]; +char HEXCHAR[] = "0123456789ABCDEF"; + + addr = 0; + haddr = 0; + hex_buffer[0] = 0; + asc_buffer[0] = 0; + for (i=0; i < size; ) { + if (*p >= '0' && *p <='z') + asc_buffer[addr] = *p; + else + asc_buffer[addr] = '.'; + addr++; + asc_buffer[addr] = 0; + hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4]; + haddr++; + hex_buffer[haddr] = HEXCHAR[*p & 0x0f]; + haddr++; + hex_buffer[haddr] = ' '; + haddr++; + hex_buffer[haddr] = 0; + p++; + i++; + if (i%16 == 0) { + printk("%s %s\n", hex_buffer, asc_buffer); + addr = 0; + haddr = 0; + } + } +} /* DumpData */ + + +/***************************************************************************** + * + * DumpLong - print a data area as long values + * + * Description: + * This function prints a area of data to the system logfile/to the + * console. + * + * Returns: N/A + * + */ +static void DumpLong(char *pc, int size) +{ +register int i; +int haddr, addr; +char hex_buffer[180]; +char asc_buffer[180]; +char HEXCHAR[] = "0123456789ABCDEF"; +long *p; +int l; + + addr = 0; + haddr = 0; + hex_buffer[0] = 0; + asc_buffer[0] = 0; + p = (long*) pc; + for (i=0; i < size; ) { + l = (long) *p; + hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf]; + haddr++; + hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf]; + haddr++; + hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf]; + haddr++; + hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf]; + haddr++; + hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf]; + haddr++; + hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf]; + haddr++; + hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf]; + haddr++; + hex_buffer[haddr] = HEXCHAR[l & 0x0f]; + haddr++; + hex_buffer[haddr] = ' '; + haddr++; + hex_buffer[haddr] = 0; + p++; + i++; + if (i%8 == 0) { + printk("%4x %s\n", (i-8)*4, hex_buffer); + haddr = 0; + } + } + printk("------------------------\n"); +} /* DumpLong */ + +#endif + +/* + * Local variables: + * compile-command: "make" + * End: + */ + |
