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BranchCommit messageAuthorAge
archive/unc-master-3.0P-FP: fix BUG_ON releated to priority inheritanceBjoern Brandenburg13 years
archived-2013.1uncachedev: mmap memory that is not cached by CPUsGlenn Elliott12 years
archived-private-masterMerge branch 'wip-2.6.34' into old-private-masterAndrea Bastoni15 years
archived-semi-partMerge branch 'wip-semi-part' of ssh://cvs/cvs/proj/litmus/repo/litmus2010 int...Andrea Bastoni15 years
demoFurther refinementsJonathan Herman14 years
ecrts-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
ecrts14-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
gpusync-rtss12Final GPUSync implementation.Glenn Elliott12 years
gpusync/stagingRename IKGLP R2DGLP.Glenn Elliott12 years
linux-tipMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/p...Linus Torvalds15 years
litmus2008-patch-seriesadd i386 feather-trace implementationBjoern B. Brandenburg16 years
masterPSN-EDF: use inferred_sporadic_job_release_atBjoern Brandenburg9 years
pgmmake it compileGlenn Elliott12 years
prop/litmus-signalsInfrastructure for Litmus signals.Glenn Elliott13 years
prop/robust-tie-breakFixed bug in edf_higher_prio().Glenn Elliott13 years
stagingFix tracepoint compilation errorFelipe Cerqueira13 years
test9/23/2016Namhoon Kim9 years
tracing-develTest kernel tracing events capabilitiesAndrea Bastoni16 years
v2.6.34-with-arm-patchessmsc911x: Add spinlocks around registers accessCatalin Marinas15 years
v2015.1Add ARM syscall def for get_current_budgetBjoern Brandenburg10 years
wip-2011.2-bbbLitmus core: simplify np-section protocolBjoern B. Brandenburg14 years
wip-2011.2-bbb-traceRefactor sched_trace_log_message() -> debug_trace_log_message()Andrea Bastoni14 years
wip-2012.3-gpuSOBLIV draining support for C-EDF.Glenn Elliott12 years
wip-2012.3-gpu-preportpick up last C-RM fileGlenn Elliott12 years
wip-2012.3-gpu-rtss13Fix critical bug in GPU tracker.Glenn Elliott12 years
wip-2012.3-gpu-sobliv-budget-w-ksharkProper sobliv draining and many bug fixes.Glenn Elliott12 years
wip-aedzl-finalMake it easier to compile AEDZL interfaces in liblitmus.Glenn Elliott15 years
wip-aedzl-revisedAdd sched_trace data for Apative EDZLGlenn Elliott15 years
wip-arbit-deadlineFix compilation bug.Glenn Elliott13 years
wip-aux-tasksDescription of refined aux task inheritance.Glenn Elliott13 years
wip-bbbGSN-EDF & Core: improve debug TRACE'ing for NP sectionsBjoern B. Brandenburg14 years
wip-bbb-prio-donuse correct timestampBjoern B. Brandenburg14 years
wip-better-breakImplement hash-based EDF tie-breaking.Glenn Elliott13 years
wip-binary-heapMake C-EDF work with simplified binheap_deleteGlenn Elliott13 years
wip-budgetAdded support for choices in budget policy enforcement.Glenn Elliott15 years
wip-colorSummarize schedulability with final recordJonathan Herman13 years
wip-color-jlhsched_color: Fixed two bugs causing crashing on experiment restart and a rare...Jonathan Herman13 years
wip-d10-hz1000Enable HZ=1000 on District 10Bjoern B. Brandenburg15 years
wip-default-clusteringFeature: Make default C-EDF clustering compile-time configurable.Glenn Elliott15 years
wip-dissipation-jericksoUpdate from 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-dissipation2-jericksoUpdate 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-ecrts14-pgmMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
wip-edf-hsblast tested versionJonathan Herman14 years
wip-edf-osLookup table EDF-osJeremy Erickson12 years
wip-edf-tie-breakMerge branch 'wip-edf-tie-break' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus...Glenn Elliott13 years
wip-edzl-critiqueUse hr_timer's active checks instead of having own flag.Glenn Elliott15 years
wip-edzl-finalImplementation of the EDZL scheduler.Glenn Elliott15 years
wip-edzl-revisedClean up comments.Glenn Elliott15 years
wip-eventsAdded support for tracing arbitrary actions.Jonathan Herman15 years
wip-extra-debugDBG: add additional tracingBjoern B. Brandenburg15 years
wip-fix-switch-jericksoAttempt to fix race condition with plugin switchingJeremy Erickson15 years
wip-fix3sched: show length of runqueue clock deactivation in /proc/sched_debugBjoern B. Brandenburg15 years
wip-fmlp-dequeueImprove FMLP queue management.Glenn Elliott14 years
wip-ft-irq-flagFeather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-gpu-cleanupEnable sched_trace log injection from userspaceGlenn Elliott13 years
wip-gpu-interruptsRemove option for threading of all softirqs.Glenn Elliott14 years
wip-gpu-rtas12Generalized GPU cost predictors + EWMA. (untested)Glenn Elliott13 years
wip-gpu-rtss12Final GPUSync implementation.Glenn Elliott13 years
wip-gpu-rtss12-srpexperimental changes to support GPUs under SRPGlenn Elliott13 years
wip-gpusync-mergeCleanup priority tracking for budget enforcement.Glenn Elliott11 years
wip-ikglpMove RSM and IKGLP imp. to own .c filesGlenn Elliott13 years
wip-k-fmlpMerge branch 'mpi-master' into wip-k-fmlpGlenn Elliott14 years
wip-kernel-coloringAdded recolor syscallNamhoon Kim7 years
wip-kernthreadsKludge work-queue processing into klitirqd.Glenn Elliott15 years
wip-klmirqd-to-auxAllow klmirqd threads to be given names.Glenn Elliott13 years
wip-ksharkMerge branch 'mpi-staging' into wip-ksharkJonathan Herman13 years
wip-litmus-3.2Merge commit 'v3.2' into litmus-stagingAndrea Bastoni13 years
wip-litmus2011.2Cleanup: Coding conformance for affinity stuff.Glenn Elliott14 years
wip-litmus3.0-2011.2Feather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-master-2.6.33-rtAvoid deadlock when switching task policy to BACKGROUND (ugly)Andrea Bastoni15 years
wip-mcRemoved ARM-specific hacks which disabled less common mixed-criticality featu...Jonathan Herman12 years
wip-mc-bipasaMC-EDF addedbipasa chattopadhyay13 years
wip-mc-jericksoSplit C/D queuesJeremy Erickson15 years
wip-mc2-cache-slackManually patched mc^2 related codeMing Yang10 years
wip-mcrit-maccosmeticMac Mollison15 years
wip-merge-3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-merge-v3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-migration-affinityNULL affinity dereference in C-EDF.Glenn Elliott14 years
wip-mmap-uncacheshare branch with othersGlenn Elliott13 years
wip-modechangeRTSS 2017 submissionNamhoon Kim8 years
wip-nested-lockingAppears to be working.Bryan Ward12 years
wip-omlp-gedfFirst implementation of G-OMLP.Glenn Elliott15 years
wip-paiSome cleanup of PAIGlenn Elliott14 years
wip-percore-lib9/21/2016Namhoon Kim9 years
wip-performanceCONFIG_DONT_PREEMPT_ON_TIE: Don't preeempt a scheduled task on priority tie.Glenn Elliott14 years
wip-pgmAdd PGM support to C-FLGlenn Elliott12 years
wip-pgm-splitFirst draft of C-FL-splitNamhoon Kim12 years
wip-pm-ovdAdd preemption-and-migration overhead tracing supportAndrea Bastoni15 years
wip-prio-inhP-EDF updated to use the generic pi framework.Glenn Elliott15 years
wip-prioq-dglBUG FIX: Support DGLs with PRIOQ_MUTEXGlenn Elliott13 years
wip-refactored-gedfGeneralizd architecture for GEDF-style scheduelrs to reduce code redundancy.Glenn Elliott15 years
wip-release-master-fixbugfix: release master CPU must signal task was pickedBjoern B. Brandenburg14 years
wip-robust-tie-breakEDF priority tie-breaks.Glenn Elliott13 years
wip-rt-ksharkMove task time accounting into the complete_job method.Jonathan Herman13 years
wip-rtas12-pgmScheduling of PGM jobs.Glenn Elliott13 years
wip-semi-partFix compile error with newer GCCJeremy Erickson12 years
wip-semi-part-edfos-jericksoUse initial CPU set by clientJeremy Erickson12 years
wip-shared-libTODO: Fix condition checks in replicate_page_move_mapping()Namhoon Kim9 years
wip-shared-lib2RTAS 2017 Submission ver.Namhoon Kim9 years
wip-shared-memInitial commit for shared libraryNamhoon Kim9 years
wip-splitting-jericksoFix release behaviorJeremy Erickson13 years
wip-splitting-omlp-jericksoBjoern's Dissertation Code with Priority DonationJeremy Erickson13 years
wip-stage-binheapAn efficient binary heap implementation.Glenn Elliott13 years
wip-sun-portDynamic memory allocation and clean exit for FeatherTraceChristopher Kenna15 years
wip-timer-tracebugfix: C-EDF, clear scheduled field of the correct CPU upon task_exitAndrea Bastoni15 years
wip-tracepointsAdd kernel-style events for sched_trace_XXX() functionsAndrea Bastoni14 years
 
TagDownloadAuthorAge
2015.1commit 8e51b37822...Bjoern Brandenburg10 years
2013.1commit bcaacec1ca...Glenn Elliott12 years
2012.3commit c158b5fbe4...Jonathan Herman13 years
2012.2commit b53c479a0f...Glenn Elliott13 years
2012.1commit 83b11ea1c6...Bjoern B. Brandenburg14 years
rtas12-mc-beta-expcommit 8e236ee20f...Christopher Kenna14 years
2011.1commit d11808b5c6...Christopher Kenna15 years
v2.6.37-rc4commit e8a7e48bb2...Linus Torvalds15 years
v2.6.37-rc3commit 3561d43fd2...Linus Torvalds15 years
v2.6.37-rc2commit e53beacd23...Linus Torvalds15 years
v2.6.37-rc1commit c8ddb2713c...Linus Torvalds15 years
v2.6.36commit f6f94e2ab1...Linus Torvalds15 years
2010.2commit 5c5456402d...Bjoern B. Brandenburg15 years
v2.6.36-rc8commit cd07202cc8...Linus Torvalds15 years
v2.6.36-rc7commit cb655d0f3d...Linus Torvalds15 years
v2.6.36-rc6commit 899611ee7d...Linus Torvalds15 years
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2010.1commit 7c1ff4c544...Andrea Bastoni15 years
v2.6.34commit e40152ee1e...Linus Torvalds15 years
v2.6.33.4commit 4640b4e7d9...Greg Kroah-Hartman15 years
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v2.6.15-rc3commit 624f54be20...Linus Torvalds20 years
v2.6.15-rc2commit 3bedff1d73...Linus Torvalds20 years
v2.6.15-rc1commit cd52d1ee9a...Linus Torvalds20 years
v2.6.14commit 741b2252a5...Linus Torvalds20 years
v2.6.14-rc5commit 93918e9afc...Linus Torvalds20 years
v2.6.14-rc4commit 907a426179...Linus Torvalds20 years
v2.6.14-rc3commit 1c9426e8a5...Linus Torvalds20 years
v2.6.14-rc2commit 676d55ae30...Linus Torvalds20 years
v2.6.14-rc1commit 2f4ba45a75...Linus Torvalds20 years
v2.6.13commit 02b3e4e2d7...Linus Torvalds20 years
v2.6.13-rc7commit 0572e3da3f...Linus Torvalds20 years
v2.6.13-rc6commit 6fc32179de...Linus Torvalds20 years
v2.6.13-rc5commit 9a351e30d7...Linus Torvalds20 years
v2.6.13-rc4commit 6395352334...Linus Torvalds20 years
v2.6.11tree c39ae07f39...
v2.6.11-treetree c39ae07f39...
v2.6.12commit 9ee1c939d1...
v2.6.12-rc2commit 1da177e4c3...
v2.6.12-rc3commit a2755a80f4...
v2.6.12-rc4commit 88d7bd8cb9...
v2.6.12-rc5commit 2a24ab628a...
v2.6.12-rc6commit 7cef5677ef...
v2.6.13-rc1commit 4c91aedb75...
v2.6.13-rc2commit a18bcb7450...
v2.6.13-rc3commit c32511e271...
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-09 16:41:48 -0400
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; PRINTK(KERN_INFO "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(); PRINTK(KERN_INFO "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->SharedMemSize) { 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. PRINTK(KERN_INFO "mac_drv_init()..\n"); if (mac_drv_init(smc) != 0) { PRINTK(KERN_INFO "mac_drv_init() failed.\n"); goto fail; } read_address(smc, NULL); PRINTK(KERN_INFO "HW-Addr: %02x %02x %02x %02x %02x %02x\n", smc->hw.fddi_canon_addr.a[0], smc->hw.fddi_canon_addr.a[1], smc->hw.fddi_canon_addr.a[2], smc->hw.fddi_canon_addr.a[3], smc->hw.fddi_canon_addr.a[4], smc->hw.fddi_canon_addr.a[5]); 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; PRINTK(KERN_INFO "entering skfp_open\n"); /* Register IRQ - support shared interrupts by passing device ptr */ err = request_irq(dev->irq, (void *) skfp_interrupt, SA_SHIRQ, 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 * regs - pointer to registers structure * * 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. */ irqreturn_t skfp_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct net_device *dev = (struct net_device *) dev_id; struct s_smc *smc; /* private board structure pointer */ skfddi_priv *bp; if (dev == NULL) { printk("%s: irq %d for unknown device\n", dev->name, irq); return IRQ_NONE; } 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. * */ 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); return; } // 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 dev_mc_list *dmi; /* ptr to multicast addr entry */ int i; /* Enable promiscuous mode, if necessary */ if (dev->flags & IFF_PROMISC) { mac_drv_rx_mode(smc, RX_ENABLE_PROMISC); PRINTK(KERN_INFO "PROMISCUOUS MODE ENABLED\n"); } /* Else, update multicast address table */ else { mac_drv_rx_mode(smc, RX_DISABLE_PROMISC); PRINTK(KERN_INFO "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); PRINTK(KERN_INFO "ENABLE ALL MC ADDRESSES\n"); } else if (dev->mc_count > 0) { if (dev->mc_count <= FPMAX_MULTICAST) { /* use exact filtering */ // point to first multicast addr dmi = dev->mc_list; for (i = 0; i < dev->mc_count; i++) { mac_add_multicast(smc, (struct fddi_addr *)dmi->dmi_addr, 1); PRINTK(KERN_INFO "ENABLE MC ADDRESS:"); PRINTK(" %02x %02x %02x ", dmi->dmi_addr[0], dmi->dmi_addr[1], dmi->dmi_addr[2]); PRINTK("%02x %02x %02x\n", dmi->dmi_addr[3], dmi->dmi_addr[4], dmi->dmi_addr[5]); dmi = dmi->next; } // for } else { // more MC addresses than HW supports mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI); PRINTK(KERN_INFO "ENABLE ALL MC ADDRESSES\n"); } } else { // no MC addresses PRINTK(KERN_INFO "DISABLE ALL MC ADDRESSES\n"); } /* Update adapter filters */ mac_update_multicast(smc); } return; } // 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)) { memset(&lp->MacStat, 0, sizeof(lp->MacStat)); } else { status = -EPERM; } break; default: printk("ioctl for %s: unknow 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 int skfp_send_pkt(struct sk_buff *skb, struct net_device *dev) { struct s_smc *smc = netdev_priv(dev); skfddi_priv *bp = &smc->os; PRINTK(KERN_INFO "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 (0); /* return "success" */ } if (bp->QueueSkb == 0) { // return with tbusy set: queue full netif_stop_queue(dev); return 1; } bp->QueueSkb--; skb_queue_tail(&bp->SendSkbQueue, skb); send_queued_packets(netdev_priv(dev)); if (bp->QueueSkb == 0) { netif_stop_queue(dev); } dev->trans_start = jiffies; return 0; } // 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. PRINTK(KERN_INFO "send queued packets\n"); for (;;) { // send first buffer from queue skb = skb_dequeue(&bp->SendSkbQueue); if (!skb) { PRINTK(KERN_INFO "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. PRINTK("Tx attempt while ring down.\n"); } else if ((frame_status & OUT_OF_TXD) != 0) { PRINTK("%s: out of TXDs.\n", bp->dev->name); } else { PRINTK("%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. * ************************/ 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) { PRINTK(KERN_INFO "[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; PRINTK(KERN_INFO "[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; PRINTK(KERN_INFO "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. PRINTK(KERN_INFO "mac_drv_get_space end\n"); PRINTK(KERN_INFO "virt addr: %lx\n", (ulong) virt); PRINTK(KERN_INFO "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; PRINTK(KERN_INFO "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; PRINTK("Allocate %u bytes alignment gap ", size); PRINTK("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; PRINTK(KERN_INFO "entering mac_drv_tx_complete\n"); // Check if this TxD points to a skb if (!(skb = txd->txd_os.skb)) { PRINTK("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); PRINTK(KERN_INFO "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; PRINTK(KERN_INFO "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) { PRINTK(KERN_INFO "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 PRINTK(KERN_INFO "RIF found\n"); // Get RIF length from Routing Control (RC) field. cp = virt + FDDI_MAC_HDR_LEN; // Point behind MAC header. ri = ntohs(*((unsigned short *) 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); skb->dev = bp->dev; /* pass up device pointer */ netif_rx(skb); bp->dev->last_rx = jiffies; HWM_RX_CHECK(smc, RX_LOW_WATERMARK); return; RequeueRxd: PRINTK(KERN_INFO "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 PRINTK("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 PRINTK("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; PRINTK(KERN_INFO "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) { PRINTK(KERN_INFO ".\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. PRINTK("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); } PRINTK(KERN_INFO "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; PRINTK("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; PRINTK("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) { PRINTK("fddi: Discard invalid local SMT frame\n"); PRINTK(" 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) { PRINTK("fddi: Local SMT: skb memory exhausted.\n"); return (0); } skb_reserve(skb, 3); skb_put(skb, len); memcpy(skb->data, look_ahead, len); // deliver frame to system skb->protocol = fddi_type_trans(skb, smc->os.dev); skb->dev->last_rx = jiffies; 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) { PRINTK("ring_status_indication( "); if (status & RS_RES15) PRINTK("RS_RES15 "); if (status & RS_HARDERROR) PRINTK("RS_HARDERROR "); if (status & RS_SOFTERROR) PRINTK("RS_SOFTERROR "); if (status & RS_BEACON) PRINTK("RS_BEACON "); if (status & RS_PATHTEST) PRINTK("RS_PATHTEST "); if (status & RS_SELFTEST) PRINTK("RS_SELFTEST "); if (status & RS_RES9) PRINTK("RS_RES9 "); if (status & RS_DISCONNECT) PRINTK("RS_DISCONNECT "); if (status & RS_RES7) PRINTK("RS_RES7 "); if (status & RS_DUPADDR) PRINTK("RS_DUPADDR "); if (status & RS_NORINGOP) PRINTK("RS_NORINGOP "); if (status & RS_VERSION) PRINTK("RS_VERSION "); if (status & RS_STUCKBYPASSS) PRINTK("RS_STUCKBYPASSS "); if (status & RS_EVENT) PRINTK("RS_EVENT "); if (status & RS_RINGOPCHANGE) PRINTK("RS_RINGOPCHANGE "); if (status & RS_RES0) PRINTK("RS_RES0 "); PRINTK("]\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 ; PRINTK(KERN_INFO "smt_stat_counter\n"); switch (stat) { case 0: PRINTK(KERN_INFO "Ring operational change.\n"); break; case 1: PRINTK(KERN_INFO "Receive fifo overflow.\n"); smc->os.MacStat.gen.rx_errors++; break; default: PRINTK(KERN_INFO "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: PRINTK(KERN_INFO "cfm_state_change: unknown %d\n", c_state); return; } PRINTK(KERN_INFO "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; } PRINTK(KERN_INFO "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; } PRINTK(KERN_INFO "[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) { PRINTK(KERN_INFO "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_module_init(&skfddi_pci_driver); } static void __exit skfd_exit(void) { pci_unregister_driver(&skfddi_pci_driver); } module_init(skfd_init); module_exit(skfd_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-09 16:41:48 -0400