diff options
Diffstat (limited to 'drivers/net/skfp/skfddi.c')
| -rw-r--r-- | drivers/net/skfp/skfddi.c | 2260 |
1 files changed, 0 insertions, 2260 deletions
diff --git a/drivers/net/skfp/skfddi.c b/drivers/net/skfp/skfddi.c deleted file mode 100644 index 3d9a4596a423..000000000000 --- a/drivers/net/skfp/skfddi.c +++ /dev/null @@ -1,2260 +0,0 @@ -/* - * File Name: - * skfddi.c - * - * Copyright Information: - * Copyright SysKonnect 1998,1999. - * - * 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. - * - * Abstract: - * A Linux device driver supporting the SysKonnect FDDI PCI controller - * familie. - * - * Maintainers: - * CG Christoph Goos (cgoos@syskonnect.de) - * - * Contributors: - * DM David S. Miller - * - * 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". - * - * Driver Architecture: - * The driver architecture is based on the DEC FDDI driver by - * Lawrence V. Stefani and several ethernet drivers. - * I also used an existing Windows NT miniport driver. - * All hardware dependent functions are handled by the SysKonnect - * Hardware Module. - * The only headerfiles that are directly related to this source - * are skfddi.c, h/types.h, h/osdef1st.h, h/targetos.h. - * The others belong to the SysKonnect FDDI Hardware Module and - * should better not be changed. - * - * Modification History: - * Date Name Description - * 02-Mar-98 CG Created. - * - * 10-Mar-99 CG Support for 2.2.x added. - * 25-Mar-99 CG Corrected IRQ routing for SMP (APIC) - * 26-Oct-99 CG Fixed compilation error on 2.2.13 - * 12-Nov-99 CG Source code release - * 22-Nov-99 CG Included in kernel source. - * 07-May-00 DM 64 bit fixes, new dma interface - * 31-Jul-03 DB Audit copy_*_user in skfp_ioctl - * Daniele Bellucci <bellucda@tiscali.it> - * 03-Dec-03 SH Convert to PCI device model - * - * Compilation options (-Dxxx): - * DRIVERDEBUG print lots of messages to log file - * DUMPPACKETS print received/transmitted packets to logfile - * - * Tested cpu architectures: - * - i386 - * - sparc64 - */ - -/* Version information string - should be updated prior to */ -/* each new release!!! */ -#define VERSION "2.07" - -static const char * const boot_msg = - "SysKonnect FDDI PCI Adapter driver v" VERSION " for\n" - " SK-55xx/SK-58xx adapters (SK-NET FDDI-FP/UP/LP)"; - -/* Include files */ - -#include <linux/capability.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include <linux/fddidevice.h> -#include <linux/skbuff.h> -#include <linux/bitops.h> -#include <linux/gfp.h> - -#include <asm/byteorder.h> -#include <asm/io.h> -#include <asm/uaccess.h> - -#include "h/types.h" -#undef ADDR // undo Linux definition -#include "h/skfbi.h" -#include "h/fddi.h" -#include "h/smc.h" -#include "h/smtstate.h" - - -// Define module-wide (static) routines -static int skfp_driver_init(struct net_device *dev); -static int skfp_open(struct net_device *dev); -static int skfp_close(struct net_device *dev); -static irqreturn_t skfp_interrupt(int irq, void *dev_id); -static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev); -static void skfp_ctl_set_multicast_list(struct net_device *dev); -static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev); -static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr); -static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); -static netdev_tx_t skfp_send_pkt(struct sk_buff *skb, - struct net_device *dev); -static void send_queued_packets(struct s_smc *smc); -static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr); -static void ResetAdapter(struct s_smc *smc); - - -// Functions needed by the hardware module -void *mac_drv_get_space(struct s_smc *smc, u_int size); -void *mac_drv_get_desc_mem(struct s_smc *smc, u_int size); -unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt); -unsigned long dma_master(struct s_smc *smc, void *virt, int len, int flag); -void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr, - int flag); -void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd); -void llc_restart_tx(struct s_smc *smc); -void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd, - int frag_count, int len); -void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd, - int frag_count); -void mac_drv_fill_rxd(struct s_smc *smc); -void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd, - int frag_count); -int mac_drv_rx_init(struct s_smc *smc, int len, int fc, char *look_ahead, - int la_len); -void dump_data(unsigned char *Data, int length); - -// External functions from the hardware module -extern u_int mac_drv_check_space(void); -extern int mac_drv_init(struct s_smc *smc); -extern void hwm_tx_frag(struct s_smc *smc, char far * virt, u_long phys, - int len, int frame_status); -extern int hwm_tx_init(struct s_smc *smc, u_char fc, int frag_count, - int frame_len, int frame_status); -extern void fddi_isr(struct s_smc *smc); -extern void hwm_rx_frag(struct s_smc *smc, char far * virt, u_long phys, - int len, int frame_status); -extern void mac_drv_rx_mode(struct s_smc *smc, int mode); -extern void mac_drv_clear_rx_queue(struct s_smc *smc); -extern void enable_tx_irq(struct s_smc *smc, u_short queue); - -static DEFINE_PCI_DEVICE_TABLE(skfddi_pci_tbl) = { - { PCI_VENDOR_ID_SK, PCI_DEVICE_ID_SK_FP, PCI_ANY_ID, PCI_ANY_ID, }, - { } /* Terminating entry */ -}; -MODULE_DEVICE_TABLE(pci, skfddi_pci_tbl); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>"); - -// Define module-wide (static) variables - -static int num_boards; /* total number of adapters configured */ - -static const struct net_device_ops skfp_netdev_ops = { - .ndo_open = skfp_open, - .ndo_stop = skfp_close, - .ndo_start_xmit = skfp_send_pkt, - .ndo_get_stats = skfp_ctl_get_stats, - .ndo_change_mtu = fddi_change_mtu, - .ndo_set_rx_mode = skfp_ctl_set_multicast_list, - .ndo_set_mac_address = skfp_ctl_set_mac_address, - .ndo_do_ioctl = skfp_ioctl, -}; - -/* - * ================= - * = skfp_init_one = - * ================= - * - * Overview: - * Probes for supported FDDI PCI controllers - * - * Returns: - * Condition code - * - * Arguments: - * pdev - pointer to PCI device information - * - * Functional Description: - * This is now called by PCI driver registration process - * for each board found. - * - * Return Codes: - * 0 - This device (fddi0, fddi1, etc) configured successfully - * -ENODEV - No devices present, or no SysKonnect FDDI PCI device - * present for this device name - * - * - * Side Effects: - * Device structures for FDDI adapters (fddi0, fddi1, etc) are - * initialized and the board resources are read and stored in - * the device structure. - */ -static int skfp_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - struct net_device *dev; - struct s_smc *smc; /* board pointer */ - void __iomem *mem; - int err; - - pr_debug("entering skfp_init_one\n"); - - if (num_boards == 0) - printk("%s\n", boot_msg); - - err = pci_enable_device(pdev); - if (err) - return err; - - err = pci_request_regions(pdev, "skfddi"); - if (err) - goto err_out1; - - pci_set_master(pdev); - -#ifdef MEM_MAPPED_IO - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - printk(KERN_ERR "skfp: region is not an MMIO resource\n"); - err = -EIO; - goto err_out2; - } - - mem = ioremap(pci_resource_start(pdev, 0), 0x4000); -#else - if (!(pci_resource_flags(pdev, 1) & IO_RESOURCE_IO)) { - printk(KERN_ERR "skfp: region is not PIO resource\n"); - err = -EIO; - goto err_out2; - } - - mem = ioport_map(pci_resource_start(pdev, 1), FP_IO_LEN); -#endif - if (!mem) { - printk(KERN_ERR "skfp: Unable to map register, " - "FDDI adapter will be disabled.\n"); - err = -EIO; - goto err_out2; - } - - dev = alloc_fddidev(sizeof(struct s_smc)); - if (!dev) { - printk(KERN_ERR "skfp: Unable to allocate fddi device, " - "FDDI adapter will be disabled.\n"); - err = -ENOMEM; - goto err_out3; - } - - dev->irq = pdev->irq; - dev->netdev_ops = &skfp_netdev_ops; - - SET_NETDEV_DEV(dev, &pdev->dev); - - /* Initialize board structure with bus-specific info */ - smc = netdev_priv(dev); - smc->os.dev = dev; - smc->os.bus_type = SK_BUS_TYPE_PCI; - smc->os.pdev = *pdev; - smc->os.QueueSkb = MAX_TX_QUEUE_LEN; - smc->os.MaxFrameSize = MAX_FRAME_SIZE; - smc->os.dev = dev; - smc->hw.slot = -1; - smc->hw.iop = mem; - smc->os.ResetRequested = FALSE; - skb_queue_head_init(&smc->os.SendSkbQueue); - - dev->base_addr = (unsigned long)mem; - - err = skfp_driver_init(dev); - if (err) - goto err_out4; - - err = register_netdev(dev); - if (err) - goto err_out5; - - ++num_boards; - pci_set_drvdata(pdev, dev); - - if ((pdev->subsystem_device & 0xff00) == 0x5500 || - (pdev->subsystem_device & 0xff00) == 0x5800) - printk("%s: SysKonnect FDDI PCI adapter" - " found (SK-%04X)\n", dev->name, - pdev->subsystem_device); - else - printk("%s: FDDI PCI adapter found\n", dev->name); - - return 0; -err_out5: - if (smc->os.SharedMemAddr) - pci_free_consistent(pdev, smc->os.SharedMemSize, - smc->os.SharedMemAddr, - smc->os.SharedMemDMA); - pci_free_consistent(pdev, MAX_FRAME_SIZE, - smc->os.LocalRxBuffer, smc->os.LocalRxBufferDMA); -err_out4: - free_netdev(dev); -err_out3: -#ifdef MEM_MAPPED_IO - iounmap(mem); -#else - ioport_unmap(mem); -#endif -err_out2: - pci_release_regions(pdev); -err_out1: - pci_disable_device(pdev); - return err; -} - -/* - * Called for each adapter board from pci_unregister_driver - */ -static void __devexit skfp_remove_one(struct pci_dev *pdev) -{ - struct net_device *p = pci_get_drvdata(pdev); - struct s_smc *lp = netdev_priv(p); - - unregister_netdev(p); - - if (lp->os.SharedMemAddr) { - pci_free_consistent(&lp->os.pdev, - lp->os.SharedMemSize, - lp->os.SharedMemAddr, - lp->os.SharedMemDMA); - lp->os.SharedMemAddr = NULL; - } - if (lp->os.LocalRxBuffer) { - pci_free_consistent(&lp->os.pdev, - MAX_FRAME_SIZE, - lp->os.LocalRxBuffer, - lp->os.LocalRxBufferDMA); - lp->os.LocalRxBuffer = NULL; - } -#ifdef MEM_MAPPED_IO - iounmap(lp->hw.iop); -#else - ioport_unmap(lp->hw.iop); -#endif - pci_release_regions(pdev); - free_netdev(p); - - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); -} - -/* - * ==================== - * = skfp_driver_init = - * ==================== - * - * Overview: - * Initializes remaining adapter board structure information - * and makes sure adapter is in a safe state prior to skfp_open(). - * - * Returns: - * Condition code - * - * Arguments: - * dev - pointer to device information - * - * Functional Description: - * This function allocates additional resources such as the host memory - * blocks needed by the adapter. - * The adapter is also reset. The OS must call skfp_open() to open - * the adapter and bring it on-line. - * - * Return Codes: - * 0 - initialization succeeded - * -1 - initialization failed - */ -static int skfp_driver_init(struct net_device *dev) -{ - struct s_smc *smc = netdev_priv(dev); - skfddi_priv *bp = &smc->os; - int err = -EIO; - - pr_debug("entering skfp_driver_init\n"); - - // set the io address in private structures - bp->base_addr = dev->base_addr; - - // Get the interrupt level from the PCI Configuration Table - smc->hw.irq = dev->irq; - - spin_lock_init(&bp->DriverLock); - - // Allocate invalid frame - bp->LocalRxBuffer = pci_alloc_consistent(&bp->pdev, MAX_FRAME_SIZE, &bp->LocalRxBufferDMA); - if (!bp->LocalRxBuffer) { - printk("could not allocate mem for "); - printk("LocalRxBuffer: %d byte\n", MAX_FRAME_SIZE); - goto fail; - } - - // Determine the required size of the 'shared' memory area. - bp->SharedMemSize = mac_drv_check_space(); - pr_debug("Memory for HWM: %ld\n", bp->SharedMemSize); - if (bp->SharedMemSize > 0) { - bp->SharedMemSize += 16; // for descriptor alignment - - bp->SharedMemAddr = pci_alloc_consistent(&bp->pdev, - bp->SharedMemSize, - &bp->SharedMemDMA); - if (!bp->SharedMemAddr) { - printk("could not allocate mem for "); - printk("hardware module: %ld byte\n", - bp->SharedMemSize); - goto fail; - } - bp->SharedMemHeap = 0; // Nothing used yet. - - } else { - bp->SharedMemAddr = NULL; - bp->SharedMemHeap = 0; - } // SharedMemSize > 0 - - memset(bp->SharedMemAddr, 0, bp->SharedMemSize); - - card_stop(smc); // Reset adapter. - - pr_debug("mac_drv_init()..\n"); - if (mac_drv_init(smc) != 0) { - pr_debug("mac_drv_init() failed\n"); - goto fail; - } - read_address(smc, NULL); - pr_debug("HW-Addr: %pMF\n", smc->hw.fddi_canon_addr.a); - memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6); - - smt_reset_defaults(smc, 0); - - return 0; - -fail: - if (bp->SharedMemAddr) { - pci_free_consistent(&bp->pdev, - bp->SharedMemSize, - bp->SharedMemAddr, - bp->SharedMemDMA); - bp->SharedMemAddr = NULL; - } - if (bp->LocalRxBuffer) { - pci_free_consistent(&bp->pdev, MAX_FRAME_SIZE, - bp->LocalRxBuffer, bp->LocalRxBufferDMA); - bp->LocalRxBuffer = NULL; - } - return err; -} // skfp_driver_init - - -/* - * ============= - * = skfp_open = - * ============= - * - * Overview: - * Opens the adapter - * - * Returns: - * Condition code - * - * Arguments: - * dev - pointer to device information - * - * Functional Description: - * This function brings the adapter to an operational state. - * - * Return Codes: - * 0 - Adapter was successfully opened - * -EAGAIN - Could not register IRQ - */ -static int skfp_open(struct net_device *dev) -{ - struct s_smc *smc = netdev_priv(dev); - int err; - - pr_debug("entering skfp_open\n"); - /* Register IRQ - support shared interrupts by passing device ptr */ - err = request_irq(dev->irq, skfp_interrupt, IRQF_SHARED, - dev->name, dev); - if (err) - return err; - - /* - * Set current address to factory MAC address - * - * Note: We've already done this step in skfp_driver_init. - * However, it's possible that a user has set a node - * address override, then closed and reopened the - * adapter. Unless we reset the device address field - * now, we'll continue to use the existing modified - * address. - */ - read_address(smc, NULL); - memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6); - - init_smt(smc, NULL); - smt_online(smc, 1); - STI_FBI(); - - /* Clear local multicast address tables */ - mac_clear_multicast(smc); - - /* Disable promiscuous filter settings */ - mac_drv_rx_mode(smc, RX_DISABLE_PROMISC); - - netif_start_queue(dev); - return 0; -} // skfp_open - - -/* - * ============== - * = skfp_close = - * ============== - * - * Overview: - * Closes the device/module. - * - * Returns: - * Condition code - * - * Arguments: - * dev - pointer to device information - * - * Functional Description: - * This routine closes the adapter and brings it to a safe state. - * The interrupt service routine is deregistered with the OS. - * The adapter can be opened again with another call to skfp_open(). - * - * Return Codes: - * Always return 0. - * - * Assumptions: - * No further requests for this adapter are made after this routine is - * called. skfp_open() can be called to reset and reinitialize the - * adapter. - */ -static int skfp_close(struct net_device *dev) -{ - struct s_smc *smc = netdev_priv(dev); - skfddi_priv *bp = &smc->os; - - CLI_FBI(); - smt_reset_defaults(smc, 1); - card_stop(smc); - mac_drv_clear_tx_queue(smc); - mac_drv_clear_rx_queue(smc); - - netif_stop_queue(dev); - /* Deregister (free) IRQ */ - free_irq(dev->irq, dev); - - skb_queue_purge(&bp->SendSkbQueue); - bp->QueueSkb = MAX_TX_QUEUE_LEN; - - return 0; -} // skfp_close - - -/* - * ================== - * = skfp_interrupt = - * ================== - * - * Overview: - * Interrupt processing routine - * - * Returns: - * None - * - * Arguments: - * irq - interrupt vector - * dev_id - pointer to device information - * - * Functional Description: - * This routine calls the interrupt processing routine for this adapter. It - * disables and reenables adapter interrupts, as appropriate. We can support - * shared interrupts since the incoming dev_id pointer provides our device - * structure context. All the real work is done in the hardware module. - * - * Return Codes: - * None - * - * Assumptions: - * The interrupt acknowledgement at the hardware level (eg. ACKing the PIC - * on Intel-based systems) is done by the operating system outside this - * routine. - * - * System interrupts are enabled through this call. - * - * Side Effects: - * Interrupts are disabled, then reenabled at the adapter. - */ - -static irqreturn_t skfp_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct s_smc *smc; /* private board structure pointer */ - skfddi_priv *bp; - - smc = netdev_priv(dev); - bp = &smc->os; - - // IRQs enabled or disabled ? - if (inpd(ADDR(B0_IMSK)) == 0) { - // IRQs are disabled: must be shared interrupt - return IRQ_NONE; - } - // Note: At this point, IRQs are enabled. - if ((inpd(ISR_A) & smc->hw.is_imask) == 0) { // IRQ? - // Adapter did not issue an IRQ: must be shared interrupt - return IRQ_NONE; - } - CLI_FBI(); // Disable IRQs from our adapter. - spin_lock(&bp->DriverLock); - - // Call interrupt handler in hardware module (HWM). - fddi_isr(smc); - - if (smc->os.ResetRequested) { - ResetAdapter(smc); - smc->os.ResetRequested = FALSE; - } - spin_unlock(&bp->DriverLock); - STI_FBI(); // Enable IRQs from our adapter. - - return IRQ_HANDLED; -} // skfp_interrupt - - -/* - * ====================== - * = skfp_ctl_get_stats = - * ====================== - * - * Overview: - * Get statistics for FDDI adapter - * - * Returns: - * Pointer to FDDI statistics structure - * - * Arguments: - * dev - pointer to device information - * - * Functional Description: - * Gets current MIB objects from adapter, then - * returns FDDI statistics structure as defined - * in if_fddi.h. - * - * Note: Since the FDDI statistics structure is - * still new and the device structure doesn't - * have an FDDI-specific get statistics handler, - * we'll return the FDDI statistics structure as - * a pointer to an Ethernet statistics structure. - * That way, at least the first part of the statistics - * structure can be decoded properly. - * We'll have to pay attention to this routine as the - * device structure becomes more mature and LAN media - * independent. - * - */ -static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev) -{ - struct s_smc *bp = netdev_priv(dev); - - /* Fill the bp->stats structure with driver-maintained counters */ - - bp->os.MacStat.port_bs_flag[0] = 0x1234; - bp->os.MacStat.port_bs_flag[1] = 0x5678; -// goos: need to fill out fddi statistic -#if 0 - /* Get FDDI SMT MIB objects */ - -/* Fill the bp->stats structure with the SMT MIB object values */ - - memcpy(bp->stats.smt_station_id, &bp->cmd_rsp_virt->smt_mib_get.smt_station_id, sizeof(bp->cmd_rsp_virt->smt_mib_get.smt_station_id)); - bp->stats.smt_op_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_op_version_id; - bp->stats.smt_hi_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_hi_version_id; - bp->stats.smt_lo_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_lo_version_id; - memcpy(bp->stats.smt_user_data, &bp->cmd_rsp_virt->smt_mib_get.smt_user_data, sizeof(bp->cmd_rsp_virt->smt_mib_get.smt_user_data)); - bp->stats.smt_mib_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_mib_version_id; - bp->stats.smt_mac_cts = bp->cmd_rsp_virt->smt_mib_get.smt_mac_ct; - bp->stats.smt_non_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_non_master_ct; - bp->stats.smt_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_master_ct; - bp->stats.smt_available_paths = bp->cmd_rsp_virt->smt_mib_get.smt_available_paths; - bp->stats.smt_config_capabilities = bp->cmd_rsp_virt->smt_mib_get.smt_config_capabilities; - bp->stats.smt_config_policy = bp->cmd_rsp_virt->smt_mib_get.smt_config_policy; - bp->stats.smt_connection_policy = bp->cmd_rsp_virt->smt_mib_get.smt_connection_policy; - bp->stats.smt_t_notify = bp->cmd_rsp_virt->smt_mib_get.smt_t_notify; - bp->stats.smt_stat_rpt_policy = bp->cmd_rsp_virt->smt_mib_get.smt_stat_rpt_policy; - bp->stats.smt_trace_max_expiration = bp->cmd_rsp_virt->smt_mib_get.smt_trace_max_expiration; - bp->stats.smt_bypass_present = bp->cmd_rsp_virt->smt_mib_get.smt_bypass_present; - bp->stats.smt_ecm_state = bp->cmd_rsp_virt->smt_mib_get.smt_ecm_state; - bp->stats.smt_cf_state = bp->cmd_rsp_virt->smt_mib_get.smt_cf_state; - bp->stats.smt_remote_disconnect_flag = bp->cmd_rsp_virt->smt_mib_get.smt_remote_disconnect_flag; - bp->stats.smt_station_status = bp->cmd_rsp_virt->smt_mib_get.smt_station_status; - bp->stats.smt_peer_wrap_flag = bp->cmd_rsp_virt->smt_mib_get.smt_peer_wrap_flag; - bp->stats.smt_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_msg_time_stamp.ls; - bp->stats.smt_transition_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_transition_time_stamp.ls; - bp->stats.mac_frame_status_functions = bp->cmd_rsp_virt->smt_mib_get.mac_frame_status_functions; - bp->stats.mac_t_max_capability = bp->cmd_rsp_virt->smt_mib_get.mac_t_max_capability; - bp->stats.mac_tvx_capability = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_capability; - bp->stats.mac_available_paths = bp->cmd_rsp_virt->smt_mib_get.mac_available_paths; - bp->stats.mac_current_path = bp->cmd_rsp_virt->smt_mib_get.mac_current_path; - memcpy(bp->stats.mac_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_upstream_nbr, FDDI_K_ALEN); - memcpy(bp->stats.mac_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_downstream_nbr, FDDI_K_ALEN); - memcpy(bp->stats.mac_old_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_upstream_nbr, FDDI_K_ALEN); - memcpy(bp->stats.mac_old_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_downstream_nbr, FDDI_K_ALEN); - bp->stats.mac_dup_address_test = bp->cmd_rsp_virt->smt_mib_get.mac_dup_address_test; - bp->stats.mac_requested_paths = bp->cmd_rsp_virt->smt_mib_get.mac_requested_paths; - bp->stats.mac_downstream_port_type = bp->cmd_rsp_virt->smt_mib_get.mac_downstream_port_type; - memcpy(bp->stats.mac_smt_address, &bp->cmd_rsp_virt->smt_mib_get.mac_smt_address, FDDI_K_ALEN); - bp->stats.mac_t_req = bp->cmd_rsp_virt->smt_mib_get.mac_t_req; - bp->stats.mac_t_neg = bp->cmd_rsp_virt->smt_mib_get.mac_t_neg; - bp->stats.mac_t_max = bp->cmd_rsp_virt->smt_mib_get.mac_t_max; - bp->stats.mac_tvx_value = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_value; - bp->stats.mac_frame_error_threshold = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_threshold; - bp->stats.mac_frame_error_ratio = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_ratio; - bp->stats.mac_rmt_state = bp->cmd_rsp_virt->smt_mib_get.mac_rmt_state; - bp->stats.mac_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_da_flag; - bp->stats.mac_una_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_unda_flag; - bp->stats.mac_frame_error_flag = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_flag; - bp->stats.mac_ma_unitdata_available = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_available; - bp->stats.mac_hardware_present = bp->cmd_rsp_virt->smt_mib_get.mac_hardware_present; - bp->stats.mac_ma_unitdata_enable = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_enable; - bp->stats.path_tvx_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_tvx_lower_bound; - bp->stats.path_t_max_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_t_max_lower_bound; - bp->stats.path_max_t_req = bp->cmd_rsp_virt->smt_mib_get.path_max_t_req; - memcpy(bp->stats.path_configuration, &bp->cmd_rsp_virt->smt_mib_get.path_configuration, sizeof(bp->cmd_rsp_virt->smt_mib_get.path_configuration)); - bp->stats.port_my_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[0]; - bp->stats.port_my_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[1]; - bp->stats.port_neighbor_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[0]; - bp->stats.port_neighbor_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[1]; - bp->stats.port_connection_policies[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[0]; - bp->stats.port_connection_policies[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[1]; - bp->stats.port_mac_indicated[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[0]; - bp->stats.port_mac_indicated[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[1]; - bp->stats.port_current_path[0] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[0]; - bp->stats.port_current_path[1] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[1]; - memcpy(&bp->stats.port_requested_paths[0 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[0], 3); - memcpy(&bp->stats.port_requested_paths[1 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[1], 3); - bp->stats.port_mac_placement[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[0]; - bp->stats.port_mac_placement[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[1]; - bp->stats.port_available_paths[0] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[0]; - bp->stats.port_available_paths[1] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[1]; - bp->stats.port_pmd_class[0] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[0]; - bp->stats.port_pmd_class[1] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[1]; - bp->stats.port_connection_capabilities[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[0]; - bp->stats.port_connection_capabilities[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[1]; - bp->stats.port_bs_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[0]; - bp->stats.port_bs_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[1]; - bp->stats.port_ler_estimate[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[0]; - bp->stats.port_ler_estimate[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[1]; - bp->stats.port_ler_cutoff[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[0]; - bp->stats.port_ler_cutoff[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[1]; - bp->stats.port_ler_alarm[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[0]; - bp->stats.port_ler_alarm[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[1]; - bp->stats.port_connect_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[0]; - bp->stats.port_connect_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[1]; - bp->stats.port_pcm_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[0]; - bp->stats.port_pcm_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[1]; - bp->stats.port_pc_withhold[0] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[0]; - bp->stats.port_pc_withhold[1] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[1]; - bp->stats.port_ler_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[0]; - bp->stats.port_ler_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[1]; - bp->stats.port_hardware_present[0] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[0]; - bp->stats.port_hardware_present[1] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[1]; - - - /* Fill the bp->stats structure with the FDDI counter values */ - - bp->stats.mac_frame_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.frame_cnt.ls; - bp->stats.mac_copied_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.copied_cnt.ls; - bp->stats.mac_transmit_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.transmit_cnt.ls; - bp->stats.mac_error_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.error_cnt.ls; - bp->stats.mac_lost_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.lost_cnt.ls; - bp->stats.port_lct_fail_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[0].ls; - bp->stats.port_lct_fail_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[1].ls; - bp->stats.port_lem_reject_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[0].ls; - bp->stats.port_lem_reject_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[1].ls; - bp->stats.port_lem_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[0].ls; - bp->stats.port_lem_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[1].ls; - -#endif - return (struct net_device_stats *)&bp->os.MacStat; -} // ctl_get_stat - - -/* - * ============================== - * = skfp_ctl_set_multicast_list = - * ============================== - * - * Overview: - * Enable/Disable LLC frame promiscuous mode reception - * on the adapter and/or update multicast address table. - * - * Returns: - * None - * - * Arguments: - * dev - pointer to device information - * - * Functional Description: - * This function acquires the driver lock and only calls - * skfp_ctl_set_multicast_list_wo_lock then. - * This routine follows a fairly simple algorithm for setting the - * adapter filters and CAM: - * - * if IFF_PROMISC flag is set - * enable promiscuous mode - * else - * disable promiscuous mode - * if number of multicast addresses <= max. multicast number - * add mc addresses to adapter table - * else - * enable promiscuous mode - * update adapter filters - * - * Assumptions: - * Multicast addresses are presented in canonical (LSB) format. - * - * Side Effects: - * On-board adapter filters are updated. - */ -static void skfp_ctl_set_multicast_list(struct net_device *dev) -{ - struct s_smc *smc = netdev_priv(dev); - skfddi_priv *bp = &smc->os; - unsigned long Flags; - - spin_lock_irqsave(&bp->DriverLock, Flags); - skfp_ctl_set_multicast_list_wo_lock(dev); - spin_unlock_irqrestore(&bp->DriverLock, Flags); -} // skfp_ctl_set_multicast_list - - - -static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev) -{ - struct s_smc *smc = netdev_priv(dev); - struct netdev_hw_addr *ha; - - /* Enable promiscuous mode, if necessary */ - if (dev->flags & IFF_PROMISC) { - mac_drv_rx_mode(smc, RX_ENABLE_PROMISC); - pr_debug("PROMISCUOUS MODE ENABLED\n"); - } - /* Else, update multicast address table */ - else { - mac_drv_rx_mode(smc, RX_DISABLE_PROMISC); - pr_debug("PROMISCUOUS MODE DISABLED\n"); - - // Reset all MC addresses - mac_clear_multicast(smc); - mac_drv_rx_mode(smc, RX_DISABLE_ALLMULTI); - - if (dev->flags & IFF_ALLMULTI) { - mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI); - pr_debug("ENABLE ALL MC ADDRESSES\n"); - } else if (!netdev_mc_empty(dev)) { - if (netdev_mc_count(dev) <= FPMAX_MULTICAST) { - /* use exact filtering */ - - // point to first multicast addr - netdev_for_each_mc_addr(ha, dev) { - mac_add_multicast(smc, - (struct fddi_addr *)ha->addr, - 1); - - pr_debug("ENABLE MC ADDRESS: %pMF\n", - ha->addr); - } - - } else { // more MC addresses than HW supports - - mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI); - pr_debug("ENABLE ALL MC ADDRESSES\n"); - } - } else { // no MC addresses - - pr_debug("DISABLE ALL MC ADDRESSES\n"); - } - - /* Update adapter filters */ - mac_update_multicast(smc); - } -} // skfp_ctl_set_multicast_list_wo_lock - - -/* - * =========================== - * = skfp_ctl_set_mac_address = - * =========================== - * - * Overview: - * set new mac address on adapter and update dev_addr field in device table. - * - * Returns: - * None - * - * Arguments: - * dev - pointer to device information - * addr - pointer to sockaddr structure containing unicast address to set - * - * Assumptions: - * The address pointed to by addr->sa_data is a valid unicast - * address and is presented in canonical (LSB) format. - */ -static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr) -{ - struct s_smc *smc = netdev_priv(dev); - struct sockaddr *p_sockaddr = (struct sockaddr *) addr; - skfddi_priv *bp = &smc->os; - unsigned long Flags; - - - memcpy(dev->dev_addr, p_sockaddr->sa_data, FDDI_K_ALEN); - spin_lock_irqsave(&bp->DriverLock, Flags); - ResetAdapter(smc); - spin_unlock_irqrestore(&bp->DriverLock, Flags); - - return 0; /* always return zero */ -} // skfp_ctl_set_mac_address - - -/* - * ============== - * = skfp_ioctl = - * ============== - * - * Overview: - * - * Perform IOCTL call functions here. Some are privileged operations and the - * effective uid is checked in those cases. - * - * Returns: - * status value - * 0 - success - * other - failure - * - * Arguments: - * dev - pointer to device information - * rq - pointer to ioctl request structure - * cmd - ? - * - */ - - -static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -{ - struct s_smc *smc = netdev_priv(dev); - skfddi_priv *lp = &smc->os; - struct s_skfp_ioctl ioc; - int status = 0; - - if (copy_from_user(&ioc, rq->ifr_data, sizeof(struct s_skfp_ioctl))) - return -EFAULT; - - switch (ioc.cmd) { - case SKFP_GET_STATS: /* Get the driver statistics */ - ioc.len = sizeof(lp->MacStat); - status = copy_to_user(ioc.data, skfp_ctl_get_stats(dev), ioc.len) - ? -EFAULT : 0; - break; - case SKFP_CLR_STATS: /* Zero out the driver statistics */ - if (!capable(CAP_NET_ADMIN)) { - status = -EPERM; - } else { - memset(&lp->MacStat, 0, sizeof(lp->MacStat)); - } - break; - default: - printk("ioctl for %s: unknown cmd: %04x\n", dev->name, ioc.cmd); - status = -EOPNOTSUPP; - - } // switch - - return status; -} // skfp_ioctl - - -/* - * ===================== - * = skfp_send_pkt = - * ===================== - * - * Overview: - * Queues a packet for transmission and try to transmit it. - * - * Returns: - * Condition code - * - * Arguments: - * skb - pointer to sk_buff to queue for transmission - * dev - pointer to device information - * - * Functional Description: - * Here we assume that an incoming skb transmit request - * is contained in a single physically contiguous buffer - * in which the virtual address of the start of packet - * (skb->data) can be converted to a physical address - * by using pci_map_single(). - * - * We have an internal queue for packets we can not send - * immediately. Packets in this queue can be given to the - * adapter if transmit buffers are freed. - * - * We can't free the skb until after it's been DMA'd - * out by the adapter, so we'll keep it in the driver and - * return it in mac_drv_tx_complete. - * - * Return Codes: - * 0 - driver has queued and/or sent packet - * 1 - caller should requeue the sk_buff for later transmission - * - * Assumptions: - * The entire packet is stored in one physically - * contiguous buffer which is not cached and whose - * 32-bit physical address can be determined. - * - * It's vital that this routine is NOT reentered for the - * same board and that the OS is not in another section of - * code (eg. skfp_interrupt) for the same board on a - * different thread. - * - * Side Effects: - * None - */ -static netdev_tx_t skfp_send_pkt(struct sk_buff *skb, - struct net_device *dev) -{ - struct s_smc *smc = netdev_priv(dev); - skfddi_priv *bp = &smc->os; - - pr_debug("skfp_send_pkt\n"); - - /* - * Verify that incoming transmit request is OK - * - * Note: The packet size check is consistent with other - * Linux device drivers, although the correct packet - * size should be verified before calling the - * transmit routine. - */ - - if (!(skb->len >= FDDI_K_LLC_ZLEN && skb->len <= FDDI_K_LLC_LEN)) { - bp->MacStat.gen.tx_errors++; /* bump error counter */ - // dequeue packets from xmt queue and send them - netif_start_queue(dev); - dev_kfree_skb(skb); - return NETDEV_TX_OK; /* return "success" */ - } - if (bp->QueueSkb == 0) { // return with tbusy set: queue full - - netif_stop_queue(dev); - return NETDEV_TX_BUSY; - } - bp->QueueSkb--; - skb_queue_tail(&bp->SendSkbQueue, skb); - send_queued_packets(netdev_priv(dev)); - if (bp->QueueSkb == 0) { - netif_stop_queue(dev); - } - return NETDEV_TX_OK; - -} // skfp_send_pkt - - -/* - * ======================= - * = send_queued_packets = - * ======================= - * - * Overview: - * Send packets from the driver queue as long as there are some and - * transmit resources are available. - * - * Returns: - * None - * - * Arguments: - * smc - pointer to smc (adapter) structure - * - * Functional Description: - * Take a packet from queue if there is any. If not, then we are done. - * Check if there are resources to send the packet. If not, requeue it - * and exit. - * Set packet descriptor flags and give packet to adapter. - * Check if any send resources can be freed (we do not use the - * transmit complete interrupt). - */ -static void send_queued_packets(struct s_smc *smc) -{ - skfddi_priv *bp = &smc->os; - struct sk_buff *skb; - unsigned char fc; - int queue; - struct s_smt_fp_txd *txd; // Current TxD. - dma_addr_t dma_address; - unsigned long Flags; - - int frame_status; // HWM tx frame status. - - pr_debug("send queued packets\n"); - for (;;) { - // send first buffer from queue - skb = skb_dequeue(&bp->SendSkbQueue); - - if (!skb) { - pr_debug("queue empty\n"); - return; - } // queue empty ! - - spin_lock_irqsave(&bp->DriverLock, Flags); - fc = skb->data[0]; - queue = (fc & FC_SYNC_BIT) ? QUEUE_S : QUEUE_A0; -#ifdef ESS - // Check if the frame may/must be sent as a synchronous frame. - - if ((fc & ~(FC_SYNC_BIT | FC_LLC_PRIOR)) == FC_ASYNC_LLC) { - // It's an LLC frame. - if (!smc->ess.sync_bw_available) - fc &= ~FC_SYNC_BIT; // No bandwidth available. - - else { // Bandwidth is available. - - if (smc->mib.fddiESSSynchTxMode) { - // Send as sync. frame. - fc |= FC_SYNC_BIT; - } - } - } -#endif // ESS - frame_status = hwm_tx_init(smc, fc, 1, skb->len, queue); - - if ((frame_status & (LOC_TX | LAN_TX)) == 0) { - // Unable to send the frame. - - if ((frame_status & RING_DOWN) != 0) { - // Ring is down. - pr_debug("Tx attempt while ring down.\n"); - } else if ((frame_status & OUT_OF_TXD) != 0) { - pr_debug("%s: out of TXDs.\n", bp->dev->name); - } else { - pr_debug("%s: out of transmit resources", - bp->dev->name); - } - - // Note: We will retry the operation as soon as - // transmit resources become available. - skb_queue_head(&bp->SendSkbQueue, skb); - spin_unlock_irqrestore(&bp->DriverLock, Flags); - return; // Packet has been queued. - - } // if (unable to send frame) - - bp->QueueSkb++; // one packet less in local queue - - // source address in packet ? - CheckSourceAddress(skb->data, smc->hw.fddi_canon_addr.a); - - txd = (struct s_smt_fp_txd *) HWM_GET_CURR_TXD(smc, queue); - - dma_address = pci_map_single(&bp->pdev, skb->data, - skb->len, PCI_DMA_TODEVICE); - if (frame_status & LAN_TX) { - txd->txd_os.skb = skb; // save skb - txd->txd_os.dma_addr = dma_address; // save dma mapping - } - hwm_tx_frag(smc, skb->data, dma_address, skb->len, - frame_status | FIRST_FRAG | LAST_FRAG | EN_IRQ_EOF); - - if (!(frame_status & LAN_TX)) { // local only frame - pci_unmap_single(&bp->pdev, dma_address, - skb->len, PCI_DMA_TODEVICE); - dev_kfree_skb_irq(skb); - } - spin_unlock_irqrestore(&bp->DriverLock, Flags); - } // for - - return; // never reached - -} // send_queued_packets - - -/************************ - * - * CheckSourceAddress - * - * Verify if the source address is set. Insert it if necessary. - * - ************************/ -static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr) -{ - unsigned char SRBit; - - if ((((unsigned long) frame[1 + 6]) & ~0x01) != 0) // source routing bit - - return; - if ((unsigned short) frame[1 + 10] != 0) - return; - SRBit = frame[1 + 6] & 0x01; - memcpy(&frame[1 + 6], hw_addr, 6); - frame[8] |= SRBit; -} // CheckSourceAddress - - -/************************ - * - * ResetAdapter - * - * Reset the adapter and bring it back to operational mode. - * Args - * smc - A pointer to the SMT context struct. - * Out - * Nothing. - * - ************************/ -static void ResetAdapter(struct s_smc *smc) -{ - - pr_debug("[fddi: ResetAdapter]\n"); - - // Stop the adapter. - - card_stop(smc); // Stop all activity. - - // Clear the transmit and receive descriptor queues. - mac_drv_clear_tx_queue(smc); - mac_drv_clear_rx_queue(smc); - - // Restart the adapter. - - smt_reset_defaults(smc, 1); // Initialize the SMT module. - - init_smt(smc, (smc->os.dev)->dev_addr); // Initialize the hardware. - - smt_online(smc, 1); // Insert into the ring again. - STI_FBI(); - - // Restore original receive mode (multicasts, promiscuous, etc.). - skfp_ctl_set_multicast_list_wo_lock(smc->os.dev); -} // ResetAdapter - - -//--------------- functions called by hardware module ---------------- - -/************************ - * - * llc_restart_tx - * - * The hardware driver calls this routine when the transmit complete - * interrupt bits (end of frame) for the synchronous or asynchronous - * queue is set. - * - * NOTE The hardware driver calls this function also if no packets are queued. - * The routine must be able to handle this case. - * Args - * smc - A pointer to the SMT context struct. - * Out - * Nothing. - * - ************************/ -void llc_restart_tx(struct s_smc *smc) -{ - skfddi_priv *bp = &smc->os; - - pr_debug("[llc_restart_tx]\n"); - - // Try to send queued packets - spin_unlock(&bp->DriverLock); - send_queued_packets(smc); - spin_lock(&bp->DriverLock); - netif_start_queue(bp->dev);// system may send again if it was blocked - -} // llc_restart_tx - - -/************************ - * - * mac_drv_get_space - * - * The hardware module calls this function to allocate the memory - * for the SMT MBufs if the define MB_OUTSIDE_SMC is specified. - * Args - * smc - A pointer to the SMT context struct. - * - * size - Size of memory in bytes to allocate. - * Out - * != 0 A pointer to the virtual address of the allocated memory. - * == 0 Allocation error. - * - ************************/ -void *mac_drv_get_space(struct s_smc *smc, unsigned int size) -{ - void *virt; - - pr_debug("mac_drv_get_space (%d bytes), ", size); - virt = (void *) (smc->os.SharedMemAddr + smc->os.SharedMemHeap); - - if ((smc->os.SharedMemHeap + size) > smc->os.SharedMemSize) { - printk("Unexpected SMT memory size requested: %d\n", size); - return NULL; - } - smc->os.SharedMemHeap += size; // Move heap pointer. - - pr_debug("mac_drv_get_space end\n"); - pr_debug("virt addr: %lx\n", (ulong) virt); - pr_debug("bus addr: %lx\n", (ulong) - (smc->os.SharedMemDMA + - ((char *) virt - (char *)smc->os.SharedMemAddr))); - return virt; -} // mac_drv_get_space - - -/************************ - * - * mac_drv_get_desc_mem - * - * This function is called by the hardware dependent module. - * It allocates the memory for the RxD and TxD descriptors. - * - * This memory must be non-cached, non-movable and non-swappable. - * This memory should start at a physical page boundary. - * Args - * smc - A pointer to the SMT context struct. - * - * size - Size of memory in bytes to allocate. - * Out - * != 0 A pointer to the virtual address of the allocated memory. - * == 0 Allocation error. - * - ************************/ -void *mac_drv_get_desc_mem(struct s_smc *smc, unsigned int size) -{ - - char *virt; - - pr_debug("mac_drv_get_desc_mem\n"); - - // Descriptor memory must be aligned on 16-byte boundary. - - virt = mac_drv_get_space(smc, size); - - size = (u_int) (16 - (((unsigned long) virt) & 15UL)); - size = size % 16; - - pr_debug("Allocate %u bytes alignment gap ", size); - pr_debug("for descriptor memory.\n"); - - if (!mac_drv_get_space(smc, size)) { - printk("fddi: Unable to align descriptor memory.\n"); - return NULL; - } - return virt + size; -} // mac_drv_get_desc_mem - - -/************************ - * - * mac_drv_virt2phys - * - * Get the physical address of a given virtual address. - * Args - * smc - A pointer to the SMT context struct. - * - * virt - A (virtual) pointer into our 'shared' memory area. - * Out - * Physical address of the given virtual address. - * - ************************/ -unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt) -{ - return smc->os.SharedMemDMA + - ((char *) virt - (char *)smc->os.SharedMemAddr); -} // mac_drv_virt2phys - - -/************************ - * - * dma_master - * - * The HWM calls this function, when the driver leads through a DMA - * transfer. If the OS-specific module must prepare the system hardware - * for the DMA transfer, it should do it in this function. - * - * The hardware module calls this dma_master if it wants to send an SMT - * frame. This means that the virt address passed in here is part of - * the 'shared' memory area. - * Args - * smc - A pointer to the SMT context struct. - * - * virt - The virtual address of the data. - * - * len - The length in bytes of the data. - * - * flag - Indicates the transmit direction and the buffer type: - * DMA_RD (0x01) system RAM ==> adapter buffer memory - * DMA_WR (0x02) adapter buffer memory ==> system RAM - * SMT_BUF (0x80) SMT buffer - * - * >> NOTE: SMT_BUF and DMA_RD are always set for PCI. << - * Out - * Returns the pyhsical address for the DMA transfer. - * - ************************/ -u_long dma_master(struct s_smc * smc, void *virt, int len, int flag) -{ - return smc->os.SharedMemDMA + - ((char *) virt - (char *)smc->os.SharedMemAddr); -} // dma_master - - -/************************ - * - * dma_complete - * - * The hardware module calls this routine when it has completed a DMA - * transfer. If the operating system dependent module has set up the DMA - * channel via dma_master() (e.g. Windows NT or AIX) it should clean up - * the DMA channel. - * Args - * smc - A pointer to the SMT context struct. - * - * descr - A pointer to a TxD or RxD, respectively. - * - * flag - Indicates the DMA transfer direction / SMT buffer: - * DMA_RD (0x01) system RAM ==> adapter buffer memory - * DMA_WR (0x02) adapter buffer memory ==> system RAM - * SMT_BUF (0x80) SMT buffer (managed by HWM) - * Out - * Nothing. - * - ************************/ -void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr, int flag) -{ - /* For TX buffers, there are two cases. If it is an SMT transmit - * buffer, there is nothing to do since we use consistent memory - * for the 'shared' memory area. The other case is for normal - * transmit packets given to us by the networking stack, and in - * that case we cleanup the PCI DMA mapping in mac_drv_tx_complete - * below. - * - * For RX buffers, we have to unmap dynamic PCI DMA mappings here - * because the hardware module is about to potentially look at - * the contents of the buffer. If we did not call the PCI DMA - * unmap first, the hardware module could read inconsistent data. - */ - if (flag & DMA_WR) { - skfddi_priv *bp = &smc->os; - volatile struct s_smt_fp_rxd *r = &descr->r; - - /* If SKB is NULL, we used the local buffer. */ - if (r->rxd_os.skb && r->rxd_os.dma_addr) { - int MaxFrameSize = bp->MaxFrameSize; - - pci_unmap_single(&bp->pdev, r->rxd_os.dma_addr, - MaxFrameSize, PCI_DMA_FROMDEVICE); - r->rxd_os.dma_addr = 0; - } - } -} // dma_complete - - -/************************ - * - * mac_drv_tx_complete - * - * Transmit of a packet is complete. Release the tx staging buffer. - * - * Args - * smc - A pointer to the SMT context struct. - * - * txd - A pointer to the last TxD which is used by the frame. - * Out - * Returns nothing. - * - ************************/ -void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd) -{ - struct sk_buff *skb; - - pr_debug("entering mac_drv_tx_complete\n"); - // Check if this TxD points to a skb - - if (!(skb = txd->txd_os.skb)) { - pr_debug("TXD with no skb assigned.\n"); - return; - } - txd->txd_os.skb = NULL; - - // release the DMA mapping - pci_unmap_single(&smc->os.pdev, txd->txd_os.dma_addr, - skb->len, PCI_DMA_TODEVICE); - txd->txd_os.dma_addr = 0; - - smc->os.MacStat.gen.tx_packets++; // Count transmitted packets. - smc->os.MacStat.gen.tx_bytes+=skb->len; // Count bytes - - // free the skb - dev_kfree_skb_irq(skb); - - pr_debug("leaving mac_drv_tx_complete\n"); -} // mac_drv_tx_complete - - -/************************ - * - * dump packets to logfile - * - ************************/ -#ifdef DUMPPACKETS -void dump_data(unsigned char *Data, int length) -{ - int i, j; - unsigned char s[255], sh[10]; - if (length > 64) { - length = 64; - } - printk(KERN_INFO "---Packet start---\n"); - for (i = 0, j = 0; i < length / 8; i++, j += 8) - printk(KERN_INFO "%02x %02x %02x %02x %02x %02x %02x %02x\n", - Data[j + 0], Data[j + 1], Data[j + 2], Data[j + 3], - Data[j + 4], Data[j + 5], Data[j + 6], Data[j + 7]); - strcpy(s, ""); - for (i = 0; i < length % 8; i++) { - sprintf(sh, "%02x ", Data[j + i]); - strcat(s, sh); - } - printk(KERN_INFO "%s\n", s); - printk(KERN_INFO "------------------\n"); -} // dump_data -#else -#define dump_data(data,len) -#endif // DUMPPACKETS - -/************************ - * - * mac_drv_rx_complete - * - * The hardware module calls this function if an LLC frame is received - * in a receive buffer. Also the SMT, NSA, and directed beacon frames - * from the network will be passed to the LLC layer by this function - * if passing is enabled. - * - * mac_drv_rx_complete forwards the frame to the LLC layer if it should - * be received. It also fills the RxD ring with new receive buffers if - * some can be queued. - * Args - * smc - A pointer to the SMT context struct. - * - * rxd - A pointer to the first RxD which is used by the receive frame. - * - * frag_count - Count of RxDs used by the received frame. - * - * len - Frame length. - * Out - * Nothing. - * - ************************/ -void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd, - int frag_count, int len) -{ - skfddi_priv *bp = &smc->os; - struct sk_buff *skb; - unsigned char *virt, *cp; - unsigned short ri; - u_int RifLength; - - pr_debug("entering mac_drv_rx_complete (len=%d)\n", len); - if (frag_count != 1) { // This is not allowed to happen. - - printk("fddi: Multi-fragment receive!\n"); - goto RequeueRxd; // Re-use the given RXD(s). - - } - skb = rxd->rxd_os.skb; - if (!skb) { - pr_debug("No skb in rxd\n"); - smc->os.MacStat.gen.rx_errors++; - goto RequeueRxd; - } - virt = skb->data; - - // The DMA mapping was released in dma_complete above. - - dump_data(skb->data, len); - - /* - * FDDI Frame format: - * +-------+-------+-------+------------+--------+------------+ - * | FC[1] | DA[6] | SA[6] | RIF[0..18] | LLC[3] | Data[0..n] | - * +-------+-------+-------+------------+--------+------------+ - * - * FC = Frame Control - * DA = Destination Address - * SA = Source Address - * RIF = Routing Information Field - * LLC = Logical Link Control - */ - - // Remove Routing Information Field (RIF), if present. - - if ((virt[1 + 6] & FDDI_RII) == 0) - RifLength = 0; - else { - int n; -// goos: RIF removal has still to be tested - pr_debug("RIF found\n"); - // Get RIF length from Routing Control (RC) field. - cp = virt + FDDI_MAC_HDR_LEN; // Point behind MAC header. - - ri = ntohs(*((__be16 *) cp)); - RifLength = ri & FDDI_RCF_LEN_MASK; - if (len < (int) (FDDI_MAC_HDR_LEN + RifLength)) { - printk("fddi: Invalid RIF.\n"); - goto RequeueRxd; // Discard the frame. - - } - virt[1 + 6] &= ~FDDI_RII; // Clear RII bit. - // regions overlap - - virt = cp + RifLength; - for (n = FDDI_MAC_HDR_LEN; n; n--) - *--virt = *--cp; - // adjust sbd->data pointer - skb_pull(skb, RifLength); - len -= RifLength; - RifLength = 0; - } - - // Count statistics. - smc->os.MacStat.gen.rx_packets++; // Count indicated receive - // packets. - smc->os.MacStat.gen.rx_bytes+=len; // Count bytes. - - // virt points to header again - if (virt[1] & 0x01) { // Check group (multicast) bit. - - smc->os.MacStat.gen.multicast++; - } - - // deliver frame to system - rxd->rxd_os.skb = NULL; - skb_trim(skb, len); - skb->protocol = fddi_type_trans(skb, bp->dev); - - netif_rx(skb); - - HWM_RX_CHECK(smc, RX_LOW_WATERMARK); - return; - - RequeueRxd: - pr_debug("Rx: re-queue RXD.\n"); - mac_drv_requeue_rxd(smc, rxd, frag_count); - smc->os.MacStat.gen.rx_errors++; // Count receive packets - // not indicated. - -} // mac_drv_rx_complete - - -/************************ - * - * mac_drv_requeue_rxd - * - * The hardware module calls this function to request the OS-specific - * module to queue the receive buffer(s) represented by the pointer - * to the RxD and the frag_count into the receive queue again. This - * buffer was filled with an invalid frame or an SMT frame. - * Args - * smc - A pointer to the SMT context struct. - * - * rxd - A pointer to the first RxD which is used by the receive frame. - * - * frag_count - Count of RxDs used by the received frame. - * Out - * Nothing. - * - ************************/ -void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd, - int frag_count) -{ - volatile struct s_smt_fp_rxd *next_rxd; - volatile struct s_smt_fp_rxd *src_rxd; - struct sk_buff *skb; - int MaxFrameSize; - unsigned char *v_addr; - dma_addr_t b_addr; - - if (frag_count != 1) // This is not allowed to happen. - - printk("fddi: Multi-fragment requeue!\n"); - - MaxFrameSize = smc->os.MaxFrameSize; - src_rxd = rxd; - for (; frag_count > 0; frag_count--) { - next_rxd = src_rxd->rxd_next; - rxd = HWM_GET_CURR_RXD(smc); - - skb = src_rxd->rxd_os.skb; - if (skb == NULL) { // this should not happen - - pr_debug("Requeue with no skb in rxd!\n"); - skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC); - if (skb) { - // we got a skb - rxd->rxd_os.skb = skb; - skb_reserve(skb, 3); - skb_put(skb, MaxFrameSize); - v_addr = skb->data; - b_addr = pci_map_single(&smc->os.pdev, - v_addr, - MaxFrameSize, - PCI_DMA_FROMDEVICE); - rxd->rxd_os.dma_addr = b_addr; - } else { - // no skb available, use local buffer - pr_debug("Queueing invalid buffer!\n"); - rxd->rxd_os.skb = NULL; - v_addr = smc->os.LocalRxBuffer; - b_addr = smc->os.LocalRxBufferDMA; - } - } else { - // we use skb from old rxd - rxd->rxd_os.skb = skb; - v_addr = skb->data; - b_addr = pci_map_single(&smc->os.pdev, - v_addr, - MaxFrameSize, - PCI_DMA_FROMDEVICE); - rxd->rxd_os.dma_addr = b_addr; - } - hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize, - FIRST_FRAG | LAST_FRAG); - - src_rxd = next_rxd; - } -} // mac_drv_requeue_rxd - - -/************************ - * - * mac_drv_fill_rxd - * - * The hardware module calls this function at initialization time - * to fill the RxD ring with receive buffers. It is also called by - * mac_drv_rx_complete if rx_free is large enough to queue some new - * receive buffers into the RxD ring. mac_drv_fill_rxd queues new - * receive buffers as long as enough RxDs and receive buffers are - * available. - * Args - * smc - A pointer to the SMT context struct. - * Out - * Nothing. - * - ************************/ -void mac_drv_fill_rxd(struct s_smc *smc) -{ - int MaxFrameSize; - unsigned char *v_addr; - unsigned long b_addr; - struct sk_buff *skb; - volatile struct s_smt_fp_rxd *rxd; - - pr_debug("entering mac_drv_fill_rxd\n"); - - // Walk through the list of free receive buffers, passing receive - // buffers to the HWM as long as RXDs are available. - - MaxFrameSize = smc->os.MaxFrameSize; - // Check if there is any RXD left. - while (HWM_GET_RX_FREE(smc) > 0) { - pr_debug(".\n"); - - rxd = HWM_GET_CURR_RXD(smc); - skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC); - if (skb) { - // we got a skb - skb_reserve(skb, 3); - skb_put(skb, MaxFrameSize); - v_addr = skb->data; - b_addr = pci_map_single(&smc->os.pdev, - v_addr, - MaxFrameSize, - PCI_DMA_FROMDEVICE); - rxd->rxd_os.dma_addr = b_addr; - } else { - // no skb available, use local buffer - // System has run out of buffer memory, but we want to - // keep the receiver running in hope of better times. - // Multiple descriptors may point to this local buffer, - // so data in it must be considered invalid. - pr_debug("Queueing invalid buffer!\n"); - v_addr = smc->os.LocalRxBuffer; - b_addr = smc->os.LocalRxBufferDMA; - } - - rxd->rxd_os.skb = skb; - - // Pass receive buffer to HWM. - hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize, - FIRST_FRAG | LAST_FRAG); - } - pr_debug("leaving mac_drv_fill_rxd\n"); -} // mac_drv_fill_rxd - - -/************************ - * - * mac_drv_clear_rxd - * - * The hardware module calls this function to release unused - * receive buffers. - * Args - * smc - A pointer to the SMT context struct. - * - * rxd - A pointer to the first RxD which is used by the receive buffer. - * - * frag_count - Count of RxDs used by the receive buffer. - * Out - * Nothing. - * - ************************/ -void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd, - int frag_count) -{ - - struct sk_buff *skb; - - pr_debug("entering mac_drv_clear_rxd\n"); - - if (frag_count != 1) // This is not allowed to happen. - - printk("fddi: Multi-fragment clear!\n"); - - for (; frag_count > 0; frag_count--) { - skb = rxd->rxd_os.skb; - if (skb != NULL) { - skfddi_priv *bp = &smc->os; - int MaxFrameSize = bp->MaxFrameSize; - - pci_unmap_single(&bp->pdev, rxd->rxd_os.dma_addr, - MaxFrameSize, PCI_DMA_FROMDEVICE); - - dev_kfree_skb(skb); - rxd->rxd_os.skb = NULL; - } - rxd = rxd->rxd_next; // Next RXD. - - } -} // mac_drv_clear_rxd - - -/************************ - * - * mac_drv_rx_init - * - * The hardware module calls this routine when an SMT or NSA frame of the - * local SMT should be delivered to the LLC layer. - * - * It is necessary to have this function, because there is no other way to - * copy the contents of SMT MBufs into receive buffers. - * - * mac_drv_rx_init allocates the required target memory for this frame, - * and receives the frame fragment by fragment by calling mac_drv_rx_frag. - * Args - * smc - A pointer to the SMT context struct. - * - * len - The length (in bytes) of the received frame (FC, DA, SA, Data). - * - * fc - The Frame Control field of the received frame. - * - * look_ahead - A pointer to the lookahead data buffer (may be NULL). - * - * la_len - The length of the lookahead data stored in the lookahead - * buffer (may be zero). - * Out - * Always returns zero (0). - * - ************************/ -int mac_drv_rx_init(struct s_smc *smc, int len, int fc, - char *look_ahead, int la_len) -{ - struct sk_buff *skb; - - pr_debug("entering mac_drv_rx_init(len=%d)\n", len); - - // "Received" a SMT or NSA frame of the local SMT. - - if (len != la_len || len < FDDI_MAC_HDR_LEN || !look_ahead) { - pr_debug("fddi: Discard invalid local SMT frame\n"); - pr_debug(" len=%d, la_len=%d, (ULONG) look_ahead=%08lXh.\n", - len, la_len, (unsigned long) look_ahead); - return 0; - } - skb = alloc_skb(len + 3, GFP_ATOMIC); - if (!skb) { - pr_debug("fddi: Local SMT: skb memory exhausted.\n"); - return 0; - } - skb_reserve(skb, 3); - skb_put(skb, len); - skb_copy_to_linear_data(skb, look_ahead, len); - - // deliver frame to system - skb->protocol = fddi_type_trans(skb, smc->os.dev); - netif_rx(skb); - - return 0; -} // mac_drv_rx_init - - -/************************ - * - * smt_timer_poll - * - * This routine is called periodically by the SMT module to clean up the - * driver. - * - * Return any queued frames back to the upper protocol layers if the ring - * is down. - * Args - * smc - A pointer to the SMT context struct. - * Out - * Nothing. - * - ************************/ -void smt_timer_poll(struct s_smc *smc) -{ -} // smt_timer_poll - - -/************************ - * - * ring_status_indication - * - * This function indicates a change of the ring state. - * Args - * smc - A pointer to the SMT context struct. - * - * status - The current ring status. - * Out - * Nothing. - * - ************************/ -void ring_status_indication(struct s_smc *smc, u_long status) -{ - pr_debug("ring_status_indication( "); - if (status & RS_RES15) - pr_debug("RS_RES15 "); - if (status & RS_HARDERROR) - pr_debug("RS_HARDERROR "); - if (status & RS_SOFTERROR) - pr_debug("RS_SOFTERROR "); - if (status & RS_BEACON) - pr_debug("RS_BEACON "); - if (status & RS_PATHTEST) - pr_debug("RS_PATHTEST "); - if (status & RS_SELFTEST) - pr_debug("RS_SELFTEST "); - if (status & RS_RES9) - pr_debug("RS_RES9 "); - if (status & RS_DISCONNECT) - pr_debug("RS_DISCONNECT "); - if (status & RS_RES7) - pr_debug("RS_RES7 "); - if (status & RS_DUPADDR) - pr_debug("RS_DUPADDR "); - if (status & RS_NORINGOP) - pr_debug("RS_NORINGOP "); - if (status & RS_VERSION) - pr_debug("RS_VERSION "); - if (status & RS_STUCKBYPASSS) - pr_debug("RS_STUCKBYPASSS "); - if (status & RS_EVENT) - pr_debug("RS_EVENT "); - if (status & RS_RINGOPCHANGE) - pr_debug("RS_RINGOPCHANGE "); - if (status & RS_RES0) - pr_debug("RS_RES0 "); - pr_debug("]\n"); -} // ring_status_indication - - -/************************ - * - * smt_get_time - * - * Gets the current time from the system. - * Args - * None. - * Out - * The current time in TICKS_PER_SECOND. - * - * TICKS_PER_SECOND has the unit 'count of timer ticks per second'. It is - * defined in "targetos.h". The definition of TICKS_PER_SECOND must comply - * to the time returned by smt_get_time(). - * - ************************/ -unsigned long smt_get_time(void) -{ - return jiffies; -} // smt_get_time - - -/************************ - * - * smt_stat_counter - * - * Status counter update (ring_op, fifo full). - * Args - * smc - A pointer to the SMT context struct. - * - * stat - = 0: A ring operational change occurred. - * = 1: The FORMAC FIFO buffer is full / FIFO overflow. - * Out - * Nothing. - * - ************************/ -void smt_stat_counter(struct s_smc *smc, int stat) -{ -// BOOLEAN RingIsUp ; - - pr_debug("smt_stat_counter\n"); - switch (stat) { - case 0: - pr_debug("Ring operational change.\n"); - break; - case 1: - pr_debug("Receive fifo overflow.\n"); - smc->os.MacStat.gen.rx_errors++; - break; - default: - pr_debug("Unknown status (%d).\n", stat); - break; - } -} // smt_stat_counter - - -/************************ - * - * cfm_state_change - * - * Sets CFM state in custom statistics. - * Args - * smc - A pointer to the SMT context struct. - * - * c_state - Possible values are: - * - * EC0_OUT, EC1_IN, EC2_TRACE, EC3_LEAVE, EC4_PATH_TEST, - * EC5_INSERT, EC6_CHECK, EC7_DEINSERT - * Out - * Nothing. - * - ************************/ -void cfm_state_change(struct s_smc *smc, int c_state) -{ -#ifdef DRIVERDEBUG - char *s; - - switch (c_state) { - case SC0_ISOLATED: - s = "SC0_ISOLATED"; - break; - case SC1_WRAP_A: - s = "SC1_WRAP_A"; - break; - case SC2_WRAP_B: - s = "SC2_WRAP_B"; - break; - case SC4_THRU_A: - s = "SC4_THRU_A"; - break; - case SC5_THRU_B: - s = "SC5_THRU_B"; - break; - case SC7_WRAP_S: - s = "SC7_WRAP_S"; - break; - case SC9_C_WRAP_A: - s = "SC9_C_WRAP_A"; - break; - case SC10_C_WRAP_B: - s = "SC10_C_WRAP_B"; - break; - case SC11_C_WRAP_S: - s = "SC11_C_WRAP_S"; - break; - default: - pr_debug("cfm_state_change: unknown %d\n", c_state); - return; - } - pr_debug("cfm_state_change: %s\n", s); -#endif // DRIVERDEBUG -} // cfm_state_change - - -/************************ - * - * ecm_state_change - * - * Sets ECM state in custom statistics. - * Args - * smc - A pointer to the SMT context struct. - * - * e_state - Possible values are: - * - * SC0_ISOLATED, SC1_WRAP_A (5), SC2_WRAP_B (6), SC4_THRU_A (12), - * SC5_THRU_B (7), SC7_WRAP_S (8) - * Out - * Nothing. - * - ************************/ -void ecm_state_change(struct s_smc *smc, int e_state) -{ -#ifdef DRIVERDEBUG - char *s; - - switch (e_state) { - case EC0_OUT: - s = "EC0_OUT"; - break; - case EC1_IN: - s = "EC1_IN"; - break; - case EC2_TRACE: - s = "EC2_TRACE"; - break; - case EC3_LEAVE: - s = "EC3_LEAVE"; - break; - case EC4_PATH_TEST: - s = "EC4_PATH_TEST"; - break; - case EC5_INSERT: - s = "EC5_INSERT"; - break; - case EC6_CHECK: - s = "EC6_CHECK"; - break; - case EC7_DEINSERT: - s = "EC7_DEINSERT"; - break; - default: - s = "unknown"; - break; - } - pr_debug("ecm_state_change: %s\n", s); -#endif //DRIVERDEBUG -} // ecm_state_change - - -/************************ - * - * rmt_state_change - * - * Sets RMT state in custom statistics. - * Args - * smc - A pointer to the SMT context struct. - * - * r_state - Possible values are: - * - * RM0_ISOLATED, RM1_NON_OP, RM2_RING_OP, RM3_DETECT, - * RM4_NON_OP_DUP, RM5_RING_OP_DUP, RM6_DIRECTED, RM7_TRACE - * Out - * Nothing. - * - ************************/ -void rmt_state_change(struct s_smc *smc, int r_state) -{ -#ifdef DRIVERDEBUG - char *s; - - switch (r_state) { - case RM0_ISOLATED: - s = "RM0_ISOLATED"; - break; - case RM1_NON_OP: - s = "RM1_NON_OP - not operational"; - break; - case RM2_RING_OP: - s = "RM2_RING_OP - ring operational"; - break; - case RM3_DETECT: - s = "RM3_DETECT - detect dupl addresses"; - break; - case RM4_NON_OP_DUP: - s = "RM4_NON_OP_DUP - dupl. addr detected"; - break; - case RM5_RING_OP_DUP: - s = "RM5_RING_OP_DUP - ring oper. with dupl. addr"; - break; - case RM6_DIRECTED: - s = "RM6_DIRECTED - sending directed beacons"; - break; - case RM7_TRACE: - s = "RM7_TRACE - trace initiated"; - break; - default: - s = "unknown"; - break; - } - pr_debug("[rmt_state_change: %s]\n", s); -#endif // DRIVERDEBUG -} // rmt_state_change - - -/************************ - * - * drv_reset_indication - * - * This function is called by the SMT when it has detected a severe - * hardware problem. The driver should perform a reset on the adapter - * as soon as possible, but not from within this function. - * Args - * smc - A pointer to the SMT context struct. - * Out - * Nothing. - * - ************************/ -void drv_reset_indication(struct s_smc *smc) -{ - pr_debug("entering drv_reset_indication\n"); - - smc->os.ResetRequested = TRUE; // Set flag. - -} // drv_reset_indication - -static struct pci_driver skfddi_pci_driver = { - .name = "skfddi", - .id_table = skfddi_pci_tbl, - .probe = skfp_init_one, - .remove = __devexit_p(skfp_remove_one), -}; - -static int __init skfd_init(void) -{ - return pci_register_driver(&skfddi_pci_driver); -} - -static void __exit skfd_exit(void) -{ - pci_unregister_driver(&skfddi_pci_driver); -} - -module_init(skfd_init); -module_exit(skfd_exit); |