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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 Elliott12 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 2025-09-16 01:11:29 -0400
= adapter->rx_queue.queue_dma; ibmveth_debug_printk("buffer list @ 0x%p\n", adapter->buffer_list_addr); ibmveth_debug_printk("filter list @ 0x%p\n", adapter->filter_list_addr); ibmveth_debug_printk("receive q @ 0x%p\n", adapter->rx_queue.queue_addr); h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_DISABLE); lpar_rc = ibmveth_register_logical_lan(adapter, rxq_desc, mac_address); if(lpar_rc != H_SUCCESS) { ibmveth_error_printk("h_register_logical_lan failed with %ld\n", lpar_rc); ibmveth_error_printk("buffer TCE:0x%lx filter TCE:0x%lx rxq desc:0x%lx MAC:0x%lx\n", adapter->buffer_list_dma, adapter->filter_list_dma, rxq_desc.desc, mac_address); ibmveth_cleanup(adapter); napi_disable(&adapter->napi); return -ENONET; } for(i = 0; i<IbmVethNumBufferPools; i++) { if(!adapter->rx_buff_pool[i].active) continue; if (ibmveth_alloc_buffer_pool(&adapter->rx_buff_pool[i])) { ibmveth_error_printk("unable to alloc pool\n"); adapter->rx_buff_pool[i].active = 0; ibmveth_cleanup(adapter); napi_disable(&adapter->napi); return -ENOMEM ; } } ibmveth_debug_printk("registering irq 0x%x\n", netdev->irq); if((rc = request_irq(netdev->irq, &ibmveth_interrupt, 0, netdev->name, netdev)) != 0) { ibmveth_error_printk("unable to request irq 0x%x, rc %d\n", netdev->irq, rc); do { rc = h_free_logical_lan(adapter->vdev->unit_address); } while (H_IS_LONG_BUSY(rc) || (rc == H_BUSY)); ibmveth_cleanup(adapter); napi_disable(&adapter->napi); return rc; } ibmveth_debug_printk("initial replenish cycle\n"); ibmveth_interrupt(netdev->irq, netdev); netif_start_queue(netdev); ibmveth_debug_printk("open complete\n"); return 0; } static int ibmveth_close(struct net_device *netdev) { struct ibmveth_adapter *adapter = netdev->priv; long lpar_rc; ibmveth_debug_printk("close starting\n"); napi_disable(&adapter->napi); if (!adapter->pool_config) netif_stop_queue(netdev); free_irq(netdev->irq, netdev); do { lpar_rc = h_free_logical_lan(adapter->vdev->unit_address); } while (H_IS_LONG_BUSY(lpar_rc) || (lpar_rc == H_BUSY)); if(lpar_rc != H_SUCCESS) { ibmveth_error_printk("h_free_logical_lan failed with %lx, continuing with close\n", lpar_rc); } adapter->rx_no_buffer = *(u64*)(((char*)adapter->buffer_list_addr) + 4096 - 8); ibmveth_cleanup(adapter); ibmveth_debug_printk("close complete\n"); return 0; } static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { cmd->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE); cmd->advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg | ADVERTISED_FIBRE); cmd->speed = SPEED_1000; cmd->duplex = DUPLEX_FULL; cmd->port = PORT_FIBRE; cmd->phy_address = 0; cmd->transceiver = XCVR_INTERNAL; cmd->autoneg = AUTONEG_ENABLE; cmd->maxtxpkt = 0; cmd->maxrxpkt = 1; return 0; } static void netdev_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info) { strncpy(info->driver, ibmveth_driver_name, sizeof(info->driver) - 1); strncpy(info->version, ibmveth_driver_version, sizeof(info->version) - 1); } static u32 netdev_get_link(struct net_device *dev) { return 1; } static void ibmveth_set_rx_csum_flags(struct net_device *dev, u32 data) { struct ibmveth_adapter *adapter = dev->priv; if (data) adapter->rx_csum = 1; else { /* * Since the ibmveth firmware interface does not have the concept of * separate tx/rx checksum offload enable, if rx checksum is disabled * we also have to disable tx checksum offload. Once we disable rx * checksum offload, we are no longer allowed to send tx buffers that * are not properly checksummed. */ adapter->rx_csum = 0; dev->features &= ~NETIF_F_IP_CSUM; } } static void ibmveth_set_tx_csum_flags(struct net_device *dev, u32 data) { struct ibmveth_adapter *adapter = dev->priv; if (data) { dev->features |= NETIF_F_IP_CSUM; adapter->rx_csum = 1; } else dev->features &= ~NETIF_F_IP_CSUM; } static int ibmveth_set_csum_offload(struct net_device *dev, u32 data, void (*done) (struct net_device *, u32)) { struct ibmveth_adapter *adapter = dev->priv; u64 set_attr, clr_attr, ret_attr; long ret; int rc1 = 0, rc2 = 0; int restart = 0; if (netif_running(dev)) { restart = 1; adapter->pool_config = 1; ibmveth_close(dev); adapter->pool_config = 0; } set_attr = 0; clr_attr = 0; if (data) set_attr = IBMVETH_ILLAN_IPV4_TCP_CSUM; else clr_attr = IBMVETH_ILLAN_IPV4_TCP_CSUM; ret = h_illan_attributes(adapter->vdev->unit_address, 0, 0, &ret_attr); if (ret == H_SUCCESS && !(ret_attr & IBMVETH_ILLAN_ACTIVE_TRUNK) && !(ret_attr & IBMVETH_ILLAN_TRUNK_PRI_MASK) && (ret_attr & IBMVETH_ILLAN_PADDED_PKT_CSUM)) { ret = h_illan_attributes(adapter->vdev->unit_address, clr_attr, set_attr, &ret_attr); if (ret != H_SUCCESS) { rc1 = -EIO; ibmveth_error_printk("unable to change checksum offload settings." " %d rc=%ld\n", data, ret); ret = h_illan_attributes(adapter->vdev->unit_address, set_attr, clr_attr, &ret_attr); } else done(dev, data); } else { rc1 = -EIO; ibmveth_error_printk("unable to change checksum offload settings." " %d rc=%ld ret_attr=%lx\n", data, ret, ret_attr); } if (restart) rc2 = ibmveth_open(dev); return rc1 ? rc1 : rc2; } static int ibmveth_set_rx_csum(struct net_device *dev, u32 data) { struct ibmveth_adapter *adapter = dev->priv; if ((data && adapter->rx_csum) || (!data && !adapter->rx_csum)) return 0; return ibmveth_set_csum_offload(dev, data, ibmveth_set_rx_csum_flags); } static int ibmveth_set_tx_csum(struct net_device *dev, u32 data) { struct ibmveth_adapter *adapter = dev->priv; int rc = 0; if (data && (dev->features & NETIF_F_IP_CSUM)) return 0; if (!data && !(dev->features & NETIF_F_IP_CSUM)) return 0; if (data && !adapter->rx_csum) rc = ibmveth_set_csum_offload(dev, data, ibmveth_set_tx_csum_flags); else ibmveth_set_tx_csum_flags(dev, data); return rc; } static u32 ibmveth_get_rx_csum(struct net_device *dev) { struct ibmveth_adapter *adapter = dev->priv; return adapter->rx_csum; } static void ibmveth_get_strings(struct net_device *dev, u32 stringset, u8 *data) { int i; if (stringset != ETH_SS_STATS) return; for (i = 0; i < ARRAY_SIZE(ibmveth_stats); i++, data += ETH_GSTRING_LEN) memcpy(data, ibmveth_stats[i].name, ETH_GSTRING_LEN); } static int ibmveth_get_sset_count(struct net_device *dev, int sset) { switch (sset) { case ETH_SS_STATS: return ARRAY_SIZE(ibmveth_stats); default: return -EOPNOTSUPP; } } static void ibmveth_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) { int i; struct ibmveth_adapter *adapter = dev->priv; for (i = 0; i < ARRAY_SIZE(ibmveth_stats); i++) data[i] = IBMVETH_GET_STAT(adapter, ibmveth_stats[i].offset); } static const struct ethtool_ops netdev_ethtool_ops = { .get_drvinfo = netdev_get_drvinfo, .get_settings = netdev_get_settings, .get_link = netdev_get_link, .set_tx_csum = ibmveth_set_tx_csum, .get_rx_csum = ibmveth_get_rx_csum, .set_rx_csum = ibmveth_set_rx_csum, .get_strings = ibmveth_get_strings, .get_sset_count = ibmveth_get_sset_count, .get_ethtool_stats = ibmveth_get_ethtool_stats, }; static int ibmveth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { return -EOPNOTSUPP; } #define page_offset(v) ((unsigned long)(v) & ((1 << 12) - 1)) static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev) { struct ibmveth_adapter *adapter = netdev->priv; union ibmveth_buf_desc desc; unsigned long lpar_rc; unsigned long correlator; unsigned long flags; unsigned int retry_count; unsigned int tx_dropped = 0; unsigned int tx_bytes = 0; unsigned int tx_packets = 0; unsigned int tx_send_failed = 0; unsigned int tx_map_failed = 0; desc.fields.flags_len = IBMVETH_BUF_VALID | skb->len; desc.fields.address = dma_map_single(&adapter->vdev->dev, skb->data, skb->len, DMA_TO_DEVICE); if (skb->ip_summed == CHECKSUM_PARTIAL && ip_hdr(skb)->protocol != IPPROTO_TCP && skb_checksum_help(skb)) { ibmveth_error_printk("tx: failed to checksum packet\n"); tx_dropped++; goto out; } if (skb->ip_summed == CHECKSUM_PARTIAL) { unsigned char *buf = skb_transport_header(skb) + skb->csum_offset; desc.fields.flags_len |= (IBMVETH_BUF_NO_CSUM | IBMVETH_BUF_CSUM_GOOD); /* Need to zero out the checksum */ buf[0] = 0; buf[1] = 0; } if (dma_mapping_error(desc.fields.address)) { ibmveth_error_printk("tx: unable to map xmit buffer\n"); tx_map_failed++; tx_dropped++; goto out; } /* send the frame. Arbitrarily set retrycount to 1024 */ correlator = 0; retry_count = 1024; do { lpar_rc = h_send_logical_lan(adapter->vdev->unit_address, desc.desc, 0, 0, 0, 0, 0, correlator, &correlator); } while ((lpar_rc == H_BUSY) && (retry_count--)); if(lpar_rc != H_SUCCESS && lpar_rc != H_DROPPED) { ibmveth_error_printk("tx: h_send_logical_lan failed with rc=%ld\n", lpar_rc); ibmveth_error_printk("tx: valid=%d, len=%d, address=0x%08x\n", (desc.fields.flags_len & IBMVETH_BUF_VALID) ? 1 : 0, skb->len, desc.fields.address); tx_send_failed++; tx_dropped++; } else { tx_packets++; tx_bytes += skb->len; netdev->trans_start = jiffies; } dma_unmap_single(&adapter->vdev->dev, desc.fields.address, skb->len, DMA_TO_DEVICE); out: spin_lock_irqsave(&adapter->stats_lock, flags); netdev->stats.tx_dropped += tx_dropped; netdev->stats.tx_bytes += tx_bytes; netdev->stats.tx_packets += tx_packets; adapter->tx_send_failed += tx_send_failed; adapter->tx_map_failed += tx_map_failed; spin_unlock_irqrestore(&adapter->stats_lock, flags); dev_kfree_skb(skb); return 0; } static int ibmveth_poll(struct napi_struct *napi, int budget) { struct ibmveth_adapter *adapter = container_of(napi, struct ibmveth_adapter, napi); struct net_device *netdev = adapter->netdev; int frames_processed = 0; unsigned long lpar_rc; restart_poll: do { struct sk_buff *skb; if (!ibmveth_rxq_pending_buffer(adapter)) break; rmb(); if (!ibmveth_rxq_buffer_valid(adapter)) { wmb(); /* suggested by larson1 */ adapter->rx_invalid_buffer++; ibmveth_debug_printk("recycling invalid buffer\n"); ibmveth_rxq_recycle_buffer(adapter); } else { int length = ibmveth_rxq_frame_length(adapter); int offset = ibmveth_rxq_frame_offset(adapter); int csum_good = ibmveth_rxq_csum_good(adapter); skb = ibmveth_rxq_get_buffer(adapter); if (csum_good) skb->ip_summed = CHECKSUM_UNNECESSARY; ibmveth_rxq_harvest_buffer(adapter); skb_reserve(skb, offset); skb_put(skb, length); skb->protocol = eth_type_trans(skb, netdev); netif_receive_skb(skb); /* send it up */ netdev->stats.rx_packets++; netdev->stats.rx_bytes += length; frames_processed++; netdev->last_rx = jiffies; } } while (frames_processed < budget); ibmveth_replenish_task(adapter); if (frames_processed < budget) { /* We think we are done - reenable interrupts, * then check once more to make sure we are done. */ lpar_rc = h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_ENABLE); ibmveth_assert(lpar_rc == H_SUCCESS); netif_rx_complete(netdev, napi); if (ibmveth_rxq_pending_buffer(adapter) && netif_rx_reschedule(netdev, napi)) { lpar_rc = h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_DISABLE); goto restart_poll; } } return frames_processed; } static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance) { struct net_device *netdev = dev_instance; struct ibmveth_adapter *adapter = netdev->priv; unsigned long lpar_rc; if (netif_rx_schedule_prep(netdev, &adapter->napi)) { lpar_rc = h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_DISABLE); ibmveth_assert(lpar_rc == H_SUCCESS); __netif_rx_schedule(netdev, &adapter->napi); } return IRQ_HANDLED; } static void ibmveth_set_multicast_list(struct net_device *netdev) { struct ibmveth_adapter *adapter = netdev->priv; unsigned long lpar_rc; if((netdev->flags & IFF_PROMISC) || (netdev->mc_count > adapter->mcastFilterSize)) { lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, IbmVethMcastEnableRecv | IbmVethMcastDisableFiltering, 0); if(lpar_rc != H_SUCCESS) { ibmveth_error_printk("h_multicast_ctrl rc=%ld when entering promisc mode\n", lpar_rc); } } else { struct dev_mc_list *mclist = netdev->mc_list; int i; /* clear the filter table & disable filtering */ lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, IbmVethMcastEnableRecv | IbmVethMcastDisableFiltering | IbmVethMcastClearFilterTable, 0); if(lpar_rc != H_SUCCESS) { ibmveth_error_printk("h_multicast_ctrl rc=%ld when attempting to clear filter table\n", lpar_rc); } /* add the addresses to the filter table */ for(i = 0; i < netdev->mc_count; ++i, mclist = mclist->next) { // add the multicast address to the filter table unsigned long mcast_addr = 0; memcpy(((char *)&mcast_addr)+2, mclist->dmi_addr, 6); lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, IbmVethMcastAddFilter, mcast_addr); if(lpar_rc != H_SUCCESS) { ibmveth_error_printk("h_multicast_ctrl rc=%ld when adding an entry to the filter table\n", lpar_rc); } } /* re-enable filtering */ lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, IbmVethMcastEnableFiltering, 0); if(lpar_rc != H_SUCCESS) { ibmveth_error_printk("h_multicast_ctrl rc=%ld when enabling filtering\n", lpar_rc); } } } static int ibmveth_change_mtu(struct net_device *dev, int new_mtu) { struct ibmveth_adapter *adapter = dev->priv; int new_mtu_oh = new_mtu + IBMVETH_BUFF_OH; int reinit = 0; int i, rc; if (new_mtu < IBMVETH_MAX_MTU) return -EINVAL; for (i = 0; i < IbmVethNumBufferPools; i++) if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size) break; if (i == IbmVethNumBufferPools) return -EINVAL; /* Look for an active buffer pool that can hold the new MTU */ for(i = 0; i<IbmVethNumBufferPools; i++) { if (!adapter->rx_buff_pool[i].active) { adapter->rx_buff_pool[i].active = 1; reinit = 1; } if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size) { if (reinit && netif_running(adapter->netdev)) { adapter->pool_config = 1; ibmveth_close(adapter->netdev); adapter->pool_config = 0; dev->mtu = new_mtu; if ((rc = ibmveth_open(adapter->netdev))) return rc; } else dev->mtu = new_mtu; return 0; } } return -EINVAL; } #ifdef CONFIG_NET_POLL_CONTROLLER static void ibmveth_poll_controller(struct net_device *dev) { ibmveth_replenish_task(dev->priv); ibmveth_interrupt(dev->irq, dev); } #endif static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id) { int rc, i; long ret; struct net_device *netdev; struct ibmveth_adapter *adapter; u64 set_attr, ret_attr; unsigned char *mac_addr_p; unsigned int *mcastFilterSize_p; ibmveth_debug_printk_no_adapter("entering ibmveth_probe for UA 0x%x\n", dev->unit_address); mac_addr_p = (unsigned char *) vio_get_attribute(dev, VETH_MAC_ADDR, NULL); if(!mac_addr_p) { printk(KERN_ERR "(%s:%3.3d) ERROR: Can't find VETH_MAC_ADDR " "attribute\n", __FILE__, __LINE__); return 0; } mcastFilterSize_p = (unsigned int *) vio_get_attribute(dev, VETH_MCAST_FILTER_SIZE, NULL); if(!mcastFilterSize_p) { printk(KERN_ERR "(%s:%3.3d) ERROR: Can't find " "VETH_MCAST_FILTER_SIZE attribute\n", __FILE__, __LINE__); return 0; } netdev = alloc_etherdev(sizeof(struct ibmveth_adapter)); if(!netdev) return -ENOMEM; adapter = netdev->priv; dev->dev.driver_data = netdev; adapter->vdev = dev; adapter->netdev = netdev; adapter->mcastFilterSize= *mcastFilterSize_p; adapter->pool_config = 0; netif_napi_add(netdev, &adapter->napi, ibmveth_poll, 16); /* Some older boxes running PHYP non-natively have an OF that returns a 8-byte local-mac-address field (and the first 2 bytes have to be ignored) while newer boxes' OF return a 6-byte field. Note that IEEE 1275 specifies that local-mac-address must be a 6-byte field. The RPA doc specifies that the first byte must be 10b, so we'll just look for it to solve this 8 vs. 6 byte field issue */ if ((*mac_addr_p & 0x3) != 0x02) mac_addr_p += 2; adapter->mac_addr = 0; memcpy(&adapter->mac_addr, mac_addr_p, 6); netdev->irq = dev->irq; netdev->open = ibmveth_open; netdev->stop = ibmveth_close; netdev->hard_start_xmit = ibmveth_start_xmit; netdev->set_multicast_list = ibmveth_set_multicast_list; netdev->do_ioctl = ibmveth_ioctl; netdev->ethtool_ops = &netdev_ethtool_ops; netdev->change_mtu = ibmveth_change_mtu; SET_NETDEV_DEV(netdev, &dev->dev); #ifdef CONFIG_NET_POLL_CONTROLLER netdev->poll_controller = ibmveth_poll_controller; #endif netdev->features |= NETIF_F_LLTX; spin_lock_init(&adapter->stats_lock); memcpy(&netdev->dev_addr, &adapter->mac_addr, netdev->addr_len); for(i = 0; i<IbmVethNumBufferPools; i++) { struct kobject *kobj = &adapter->rx_buff_pool[i].kobj; ibmveth_init_buffer_pool(&adapter->rx_buff_pool[i], i, pool_count[i], pool_size[i], pool_active[i]); kobj->parent = &dev->dev.kobj; kobject_set_name(kobj, "pool%d", i); kobj->ktype = &ktype_veth_pool; kobject_register(kobj); } ibmveth_debug_printk("adapter @ 0x%p\n", adapter); adapter->buffer_list_dma = DMA_ERROR_CODE; adapter->filter_list_dma = DMA_ERROR_CODE; adapter->rx_queue.queue_dma = DMA_ERROR_CODE; ibmveth_debug_printk("registering netdev...\n"); ret = h_illan_attributes(dev->unit_address, 0, 0, &ret_attr); if (ret == H_SUCCESS && !(ret_attr & IBMVETH_ILLAN_ACTIVE_TRUNK) && !(ret_attr & IBMVETH_ILLAN_TRUNK_PRI_MASK) && (ret_attr & IBMVETH_ILLAN_PADDED_PKT_CSUM)) { set_attr = IBMVETH_ILLAN_IPV4_TCP_CSUM; ret = h_illan_attributes(dev->unit_address, 0, set_attr, &ret_attr); if (ret == H_SUCCESS) { adapter->rx_csum = 1; netdev->features |= NETIF_F_IP_CSUM; } else ret = h_illan_attributes(dev->unit_address, set_attr, 0, &ret_attr); } rc = register_netdev(netdev); if(rc) { ibmveth_debug_printk("failed to register netdev rc=%d\n", rc); free_netdev(netdev); return rc; } ibmveth_debug_printk("registered\n"); ibmveth_proc_register_adapter(adapter); return 0; } static int __devexit ibmveth_remove(struct vio_dev *dev) { struct net_device *netdev = dev->dev.driver_data; struct ibmveth_adapter *adapter = netdev->priv; int i; for(i = 0; i<IbmVethNumBufferPools; i++) kobject_unregister(&adapter->rx_buff_pool[i].kobj); unregister_netdev(netdev); ibmveth_proc_unregister_adapter(adapter); free_netdev(netdev); return 0; } #ifdef CONFIG_PROC_FS static void ibmveth_proc_register_driver(void) { ibmveth_proc_dir = proc_mkdir(IBMVETH_PROC_DIR, init_net.proc_net); if (ibmveth_proc_dir) { } } static void ibmveth_proc_unregister_driver(void) { remove_proc_entry(IBMVETH_PROC_DIR, init_net.proc_net); } static void *ibmveth_seq_start(struct seq_file *seq, loff_t *pos) { if (*pos == 0) { return (void *)1; } else { return NULL; } } static void *ibmveth_seq_next(struct seq_file *seq, void *v, loff_t *pos) { ++*pos; return NULL; } static void ibmveth_seq_stop(struct seq_file *seq, void *v) { } static int ibmveth_seq_show(struct seq_file *seq, void *v) { struct ibmveth_adapter *adapter = seq->private; char *current_mac = ((char*) &adapter->netdev->dev_addr); char *firmware_mac = ((char*) &adapter->mac_addr) ; DECLARE_MAC_BUF(mac); seq_printf(seq, "%s %s\n\n", ibmveth_driver_string, ibmveth_driver_version); seq_printf(seq, "Unit Address: 0x%x\n", adapter->vdev->unit_address); seq_printf(seq, "Current MAC: %s\n", print_mac(mac, current_mac)); seq_printf(seq, "Firmware MAC: %s\n", print_mac(mac, firmware_mac)); seq_printf(seq, "\nAdapter Statistics:\n"); seq_printf(seq, " TX: vio_map_single failres: %ld\n", adapter->tx_map_failed); seq_printf(seq, " send failures: %ld\n", adapter->tx_send_failed); seq_printf(seq, " RX: replenish task cycles: %ld\n", adapter->replenish_task_cycles); seq_printf(seq, " alloc_skb_failures: %ld\n", adapter->replenish_no_mem); seq_printf(seq, " add buffer failures: %ld\n", adapter->replenish_add_buff_failure); seq_printf(seq, " invalid buffers: %ld\n", adapter->rx_invalid_buffer); seq_printf(seq, " no buffers: %ld\n", adapter->rx_no_buffer); return 0; } static struct seq_operations ibmveth_seq_ops = { .start = ibmveth_seq_start, .next = ibmveth_seq_next, .stop = ibmveth_seq_stop, .show = ibmveth_seq_show, }; static int ibmveth_proc_open(struct inode *inode, struct file *file) { struct seq_file *seq; struct proc_dir_entry *proc; int rc; rc = seq_open(file, &ibmveth_seq_ops); if (!rc) { /* recover the pointer buried in proc_dir_entry data */ seq = file->private_data; proc = PDE(inode); seq->private = proc->data; } return rc; } static const struct file_operations ibmveth_proc_fops = { .owner = THIS_MODULE, .open = ibmveth_proc_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release, }; static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter) { struct proc_dir_entry *entry; if (ibmveth_proc_dir) { char u_addr[10]; sprintf(u_addr, "%x", adapter->vdev->unit_address); entry = create_proc_entry(u_addr, S_IFREG, ibmveth_proc_dir); if (!entry) { ibmveth_error_printk("Cannot create adapter proc entry"); } else { entry->data = (void *) adapter; entry->proc_fops = &ibmveth_proc_fops; } } return; } static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter) { if (ibmveth_proc_dir) { char u_addr[10]; sprintf(u_addr, "%x", adapter->vdev->unit_address); remove_proc_entry(u_addr, ibmveth_proc_dir); } } #else /* CONFIG_PROC_FS */ static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter) { } static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter) { } static void ibmveth_proc_register_driver(void) { } static void ibmveth_proc_unregister_driver(void) { } #endif /* CONFIG_PROC_FS */ static struct attribute veth_active_attr; static struct attribute veth_num_attr; static struct attribute veth_size_attr; static ssize_t veth_pool_show(struct kobject * kobj, struct attribute * attr, char * buf) { struct ibmveth_buff_pool *pool = container_of(kobj, struct ibmveth_buff_pool, kobj); if (attr == &veth_active_attr) return sprintf(buf, "%d\n", pool->active); else if (attr == &veth_num_attr) return sprintf(buf, "%d\n", pool->size); else if (attr == &veth_size_attr) return sprintf(buf, "%d\n", pool->buff_size); return 0; } static ssize_t veth_pool_store(struct kobject * kobj, struct attribute * attr, const char * buf, size_t count) { struct ibmveth_buff_pool *pool = container_of(kobj, struct ibmveth_buff_pool, kobj); struct net_device *netdev = container_of(kobj->parent, struct device, kobj)->driver_data; struct ibmveth_adapter *adapter = netdev->priv; long value = simple_strtol(buf, NULL, 10); long rc; if (attr == &veth_active_attr) { if (value && !pool->active) { if (netif_running(netdev)) { if(ibmveth_alloc_buffer_pool(pool)) { ibmveth_error_printk("unable to alloc pool\n"); return -ENOMEM; } pool->active = 1; adapter->pool_config = 1; ibmveth_close(netdev); adapter->pool_config = 0; if ((rc = ibmveth_open(netdev))) return rc; } else pool->active = 1; } else if (!value && pool->active) { int mtu = netdev->mtu + IBMVETH_BUFF_OH; int i; /* Make sure there is a buffer pool with buffers that can hold a packet of the size of the MTU */ for (i = 0; i < IbmVethNumBufferPools; i++) { if (pool == &adapter->rx_buff_pool[i]) continue; if (!adapter->rx_buff_pool[i].active) continue; if (mtu <= adapter->rx_buff_pool[i].buff_size) break; } if (i == IbmVethNumBufferPools) { ibmveth_error_printk("no active pool >= MTU\n"); return -EPERM; } pool->active = 0; if (netif_running(netdev)) { adapter->pool_config = 1; ibmveth_close(netdev); adapter->pool_config = 0; if ((rc = ibmveth_open(netdev))) return rc; } } } else if (attr == &veth_num_attr) { if (value <= 0 || value > IBMVETH_MAX_POOL_COUNT) return -EINVAL; else { if (netif_running(netdev)) { adapter->pool_config = 1; ibmveth_close(netdev); adapter->pool_config = 0; pool->size = value; if ((rc = ibmveth_open(netdev))) return rc; } else pool->size = value; } } else if (attr == &veth_size_attr) { if (value <= IBMVETH_BUFF_OH || value > IBMVETH_MAX_BUF_SIZE) return -EINVAL; else { if (netif_running(netdev)) { adapter->pool_config = 1; ibmveth_close(netdev); adapter->pool_config = 0; pool->buff_size = value; if ((rc = ibmveth_open(netdev))) return rc; } else pool->buff_size = value; } } /* kick the interrupt handler to allocate/deallocate pools */ ibmveth_interrupt(netdev->irq, netdev); return count; } #define ATTR(_name, _mode) \ struct attribute veth_##_name##_attr = { \ .name = __stringify(_name), .mode = _mode, \ }; static ATTR(active, 0644); static ATTR(num, 0644); static ATTR(size, 0644); static struct attribute * veth_pool_attrs[] = { &veth_active_attr, &veth_num_attr, &veth_size_attr, NULL, }; static struct sysfs_ops veth_pool_ops = { .show = veth_pool_show, .store = veth_pool_store, }; static struct kobj_type ktype_veth_pool = { .release = NULL, .sysfs_ops = &veth_pool_ops, .default_attrs = veth_pool_attrs, }; static struct vio_device_id ibmveth_device_table[] __devinitdata= { { "network", "IBM,l-lan"}, { "", "" } }; MODULE_DEVICE_TABLE(vio, ibmveth_device_table); static struct vio_driver ibmveth_driver = { .id_table = ibmveth_device_table, .probe = ibmveth_probe, .remove = ibmveth_remove, .driver = { .name = ibmveth_driver_name, .owner = THIS_MODULE, } }; static int __init ibmveth_module_init(void) { ibmveth_printk("%s: %s %s\n", ibmveth_driver_name, ibmveth_driver_string, ibmveth_driver_version); ibmveth_proc_register_driver(); return vio_register_driver(&ibmveth_driver); } static void __exit ibmveth_module_exit(void) { vio_unregister_driver(&ibmveth_driver); ibmveth_proc_unregister_driver(); } module_init(ibmveth_module_init); module_exit(ibmveth_module_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-16 01:11:29 -0400