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* Remove REDWOOD_[456] config options and conditional codeChristian Dietrich2010-07-264-82/+2
| | | | | | | | | | | | | The config options for REDWOOD_[456] were commented out in the powerpc Kconfig. The ifdefs referencing this options therefore are dead and all references to this can be removed (Also dependencies in other KConfig files). Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de> Signed-off-by: Christoph Egger <siccegge@cs.fau.de> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* powerpc: Add i8042 keyboard and mouse irq parsingMartyn Welch2010-07-091-0/+5
| | | | | | | | | | | Currently the irqs for the i8042, which historically provides keyboard and mouse (aux) support, is hardwired in the driver rather than parsing the dts. This patch modifies the powerpc legacy IO code to attempt to parse the device tree for this information, failing back to the hardcoded values if it fails. Signed-off-by: Martyn Welch <martyn.welch@ge.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* hvc_console: use "*_console" nomenclature to avoid modpost warning.Chris Metcalf2010-07-092-8/+8
| | | | | | | | | | | | | | | The use of "hvc_con_driver" as the name for a file-static "struct console" with a ".setup" field pointing to an __init function causes a modpost warning, since a non-initdata structure points to init code. Using "hvc_console" as the name triggers the hacky "*_console" workaround in modpost to silence the warning, and is the same thing that most of the other console drivers already do. I made the same change in hvsi.c since I happened to notice it was likely to suffer from the same problem. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-07-0815-66/+148
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IPoIB: Fix world-writable child interface control sysfs attributes IB/qib: Clean up properly if qib_init() fails IB/qib: Completion queue callback needs to be single threaded IB/qib: Update 7322 serdes tables IB/qib: Clear 6120 hardware error register IB/qib: Clear eager buffer memory for each new process IB/qib: Mask hardware error during link reset IB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problem RDMA/cxgb4: Derive smac_idx from port viid RDMA/cxgb4: Avoid false GTS CIDX_INC overflows RDMA/cxgb4: Don't call abort_connection() for active connect failures RDMA/cxgb4: Use the DMA state API instead of the pci equivalents
| *-. Merge branches 'cxgb4', 'ipoib' and 'qib' into for-nextRoland Dreier2010-07-089-41/+106
| |\ \
| | | * IB/qib: Clean up properly if qib_init() failsRalph Campbell2010-07-061-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If qib_init() fails, the driver fails to free memory, unregister device files, and unregister with the PCIe framework. The driver will unload without error but a subsequent driver load will cause the system to panic. This was found by changing the 7220 code to load the serdes microcode separately and not installing the microcode file. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * IB/qib: Completion queue callback needs to be single threadedRalph Campbell2010-07-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Workqueues aren't exactly equivalent to tasklets since the callback function may be called from multiple CPUs before the callback returns. This causes completion notification callbacks to have MT bugs since they weren't expecting this behavior. The fix is to use a single threaded work queue. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * IB/qib: Update 7322 serdes tablesRalph Campbell2010-07-061-4/+12
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * IB/qib: Clear 6120 hardware error registerRalph Campbell2010-07-061-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hardware error register needs to be cleared or another interrupt will be generated, thus causing an infinite loop. This is a regression introduced when removing debug output. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * IB/qib: Clear eager buffer memory for each new processRalph Campbell2010-07-061-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The eager buffers are not being cleared before being mmapped into a new user address space. This is a potential security risk and should be fixed. Note that the eager header queue is already being cleared. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * IB/qib: Mask hardware error during link resetRalph Campbell2010-07-062-26/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The HCA checks for certain hardware errors which can be falsely triggered when the IB link is reset. The fix is to mask them rather than report them. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | | * IB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problemDave Olson2010-07-066-6/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't set write combining via PAT on the VL15 buffers to avoid a rare problem with unaligned writes from interrupt-flushed store buffers. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| | * | IPoIB: Fix world-writable child interface control sysfs attributesOr Gerlitz2010-07-061-2/+2
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sumeet Lahorani <sumeet.lahorani@oracle.com> reported that the IPoIB child entries are world-writable; however we don't want ordinary users to be able to create and destroy child interfaces, so fix them to be writable only by root. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Cc: <stable@kernel.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | RDMA/cxgb4: Derive smac_idx from port viidSteve Wise2010-07-061-4/+5
| | | | | | | | | | | | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | RDMA/cxgb4: Avoid false GTS CIDX_INC overflowsSteve Wise2010-07-061-5/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The T4 IQ hw design assumes CIDX_INC credits will be returned on a regular basis and always before the CIDX counter crosses over the PIDX counter. For RDMA CQs, however, returning CIDX_INC credits is only needed and desired when and if the CQ is armed for notification. This can lead to a GTS write returning credits that causes the HW to reject the credit update because it causes CIDX to pass PIDX. Once this happens, the CIDX/PIDX counters get out of whack and an application can miss a notification and get stuck blocked awaiting a notification. To avoid this, we allocate the HW IQ 2x times the requested size. This seems to avoid the false overflow failures. If we see more issues with this, then we'll have to add code in the poll path to return credits periodically like when the amount reaches 1/2 the queue depth). I would like to avoid this as it adds a PCI write transaction for applications that never arm the CQ (like most MPIs). Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | RDMA/cxgb4: Don't call abort_connection() for active connect failuresSteve Wise2010-07-061-1/+2
| | | | | | | | | | | | | | | Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | RDMA/cxgb4: Use the DMA state API instead of the pci equivalentsFUJITA Tomonori2010-07-065-15/+15
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | This replace the PCI DMA state API (include/linux/pci-dma.h) with the DMA equivalents since the PCI DMA state API will be obsolete. No functional change. For further information about the background: http://marc.info/?l=linux-netdev&m=127037540020276&w=2 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-07-0823-159/+232
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (35 commits) NET: SB1250: Initialize .owner vxge: show startup message with KERN_INFO ll_temac: Fix missing iounmaps bridge: Clear IPCB before possible entry into IP stack bridge br_multicast: BUG: unable to handle kernel NULL pointer dereference net: Fix definition of netif_vdbg() when VERBOSE_DEBUG is defined net/ne: fix memory leak in ne_drv_probe() xfrm: fix xfrm by MARK logic virtio_net: fix oom handling on tx virtio_net: do not reschedule rx refill forever s2io: resolve statistics issues linux/net.h: fix kernel-doc warnings net: decreasing real_num_tx_queues needs to flush qdisc sched: qdisc_reset_all_tx is calling qdisc_reset without qdisc_lock qlge: fix a eeh handler to not add a pending timer qlge: Replacing add_timer() to mod_timer() usbnet: Set parent device early for netdev_printk() net: Revert "rndis_host: Poll status channel before control channel" netfilter: ip6t_REJECT: fix a dst leak in ipv6 REJECT drivers: bluetooth: bluecard_cs.c: Fixed include error, changed to linux/io.h ...
| * | NET: SB1250: Initialize .ownerRalf Baechle2010-07-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> drivers/net/sb1250-mac.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
| * | vxge: show startup message with KERN_INFOWu Fengguang2010-07-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The original KERN_CRIT will mess up terminals. CC: Sreenivasa Honnur <Sreenivasa.Honnur@neterion.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ll_temac: Fix missing iounmapsDenis Kirjanov2010-07-071-5/+13
| | | | | | | | | | | | | | | | | | | | | Fix missing iounmaps. Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net/ne: fix memory leak in ne_drv_probe()Kulikov Vasiliy2010-07-061-1/+3
| | | | | | | | | | | | | | | | | | | | | net_device allocated with alloc_eip_netdev() must be freed. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge branch 'vhost-net' of ↵David S. Miller2010-07-033-48/+58
| |\ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
| | * | vhost: add unlikely annotations to error pathMichael S. Tsirkin2010-07-012-28/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | patch 'break out of polling loop on error' caused a minor performance regression on my machine: recover that performance by adding a bunch of unlikely annotations in the error handling. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| | * | vhost: break out of polling loop on errorMichael S. Tsirkin2010-06-273-22/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When ring parsing fails, we currently handle this as ring empty condition. This means that we enable kicks and recheck ring empty: if this not empty, we re-start polling which of course will fail again. Instead, let's return a negative error code and stop polling. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * | | virtio_net: fix oom handling on txRusty Russell2010-07-031-8/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | virtio net will never try to overflow the TX ring, so the only reason add_buf may fail is out of memory. Thus, we can not stop the device until some request completes - there's no guarantee anything at all is outstanding. Make the error message clearer as well: error here does not indicate queue full. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (...and avoid TX_BUSY) Cc: stable@kernel.org # .34.x (s/virtqueue_/vi->svq->vq_ops->/) Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | virtio_net: do not reschedule rx refill foreverMichael S. Tsirkin2010-07-031-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently fill all of RX ring, then add_buf returns ENOSPC, which gets mis-detected as an out of memory condition and causes us to reschedule the work, and so on forever. Fix this by oom = err == -ENOMEM; Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org # .34.x Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | s2io: resolve statistics issuesJon Mason2010-07-032-41/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch resolves a number of issues in the statistics gathering of the s2io driver. On Xframe adapters, the received multicast statistics counter includes pause frames which are not indicated to the driver. This can cause issues where the multicast packet count is higher than what has actually been received, possibly higher than the number of packets received. The driver software counters are replaced with the adapter hardware statistics for rx_packets, rx_bytes, and tx_bytes. It also uses the overflow registers to determine if the statistics wrapped the 32bit register (removing the window of having a statistic value less than the previous call). rx_length_errors statistic now includes undersized packets in addition to oversized packets in its counting. Finally, rx_crc_errors are now being counted. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: decreasing real_num_tx_queues needs to flush qdiscJohn Fastabend2010-07-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reducing real_num_queues needs to flush the qdisc otherwise skbs with queue_mappings greater then real_num_tx_queues can be sent to the underlying driver. The flow for this is, dev_queue_xmit() dev_pick_tx() skb_tx_hash() => hash using real_num_tx_queues skb_set_queue_mapping() ... qdisc_enqueue_root() => enqueue skb on txq from hash ... dev->real_num_tx_queues -= n ... sch_direct_xmit() dev_hard_start_xmit() ndo_start_xmit(skb,dev) => skb queue set with old hash skbs are enqueued on the qdisc with skb->queue_mapping set 0 < queue_mappings < real_num_tx_queues. When the driver decreases real_num_tx_queues skb's may be dequeued from the qdisc with a queue_mapping greater then real_num_tx_queues. This fixes a case in ixgbe where this was occurring with DCB and FCoE. Because the driver is using queue_mapping to map skbs to tx descriptor rings we can potentially map skbs to rings that no longer exist. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | qlge: fix a eeh handler to not add a pending timerBreno Leitao2010-07-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some ocasions the function qlge_io_resume() tries to add a pending timer, which causes the system to hit the BUG() on add_timer() function. This patch removes the timer during the EEH recovery. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | qlge: Replacing add_timer() to mod_timer()Breno Leitao2010-07-031-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently qlge driver calls add_timer() instead of mod_timer(). This patch changes add_timer() to mod_timer(), which seems a better solution. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | usbnet: Set parent device early for netdev_printk()Ben Hutchings2010-07-031-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | netdev_printk() follows the net_device's parent device pointer, so we must set that earlier than we previously did. Reported-by: Luís Picciochi Oliveira <pitxyoki@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: Revert "rndis_host: Poll status channel before control channel"Ben Hutchings2010-07-031-12/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit c17b274dc2aa538b68c1f02b01a3c4e124b435ba. That change was reported to break rndis_wlan support for the WUSB54GS. Reported-by: Luís Picciochi Oliveira <pitxyoki@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | drivers: bluetooth: bluecard_cs.c: Fixed include error, changed to linux/io.hCody Rester2010-07-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixed include error, changed to linux/io.h Signed-off-by: Cody Rester <codyrester@gmail.com> Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | bonding: check if clients MAC addr has changedFlavio Leitner2010-06-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When two systems using bonding devices in adaptive load balancing (ALB) communicates with each other, an endless ping-pong of ARP replies starts between these two systems. What happens? In the ALB mode, bonding driver keeps track of each client connected in a hash table, so it can do the receive load balancing (RLB). This hash table is updated when an ARP reply is received, then it scans for the client entry, updates its MAC address and flag it to be announced later. Therefore, two seconds later, the alb monitor runs and send for each updated client entry two ARP replies updating this specific client. The same process happens on the receiving system, causing the endless ping-pong of arp replies. See more information including the relevant functions below: System 1 System 2 bond0 bond0 ping <system2> ARP request ---------> <--------- ARP reply +->rlb_arp_recv <---------------------+ <--- loop begins | rlb_update_entry_from_arp | | client_info->ntt = 1; | | bond_info->rx_ntt = 1; | | | | <communication succeed> | | | | bond_alb_monitor | | rlb_update_rx_clients | | rlb_update_client | | arp_create(ARPOP_REPLY) | | send ARP reply --------------> V | send ARP reply --------------> | rlb_arp_recv | rlb_update_entry_from_arp | client_info->ntt = 1; | bond_info->rx_ntt = 1; | < snipped, same as in system 1> +------- <-------------- send ARP reply <-------------- send ARP reply Besides the unneeded networking traffic, this loop breaks a cluster because a backup system can't take over the IP address. There is always one system sending an ARP reply poisoning the network. This patch fixes the problem adding a check for the MAC address before updating it. Thus, if the MAC address didn't change, there is no need to update neither to announce it later. Signed-off-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Bluetooth: Fix abuse of the preincrement operatorDavid Howells2010-06-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix abuse of the preincrement operator as detected when building with gcc 4.6.0: CC [M] drivers/bluetooth/hci_bcsp.o drivers/bluetooth/hci_bcsp.c: In function 'bcsp_prepare_pkt': drivers/bluetooth/hci_bcsp.c:247:20: warning: operation on 'bcsp->msgq_txseq' may be undefined Reported-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | mv643xx_eth: use sw csum for big packetsSaeed Bishara2010-06-301-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some controllers (KW, Dove) limits the TX IP/layer4 checksum offloading to a max size. Signed-off-by: Saeed Bishara <saeed@marvell.com> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Merge branch 'master' of ↵David S. Miller2010-06-304-7/+18
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * | | iwlwifi: set TX_CMD_FLAG_PROT_REQUIRE_MSK in tx_flagWey-Yi Guy2010-06-251-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When building tx command, always set TX_CMD_FLAG_PROT_REQUIRE_MSK for 5000 series and up. Without setting this bit the firmware will not examine the RTS/CTS setting and thus not send traffic with the appropriate protection. RTS/CTS is is required for HT traffic in a noisy environment where, without this setting, connections will stall on some hardware as documented in the patch that initially attempted to address this: commit 1152dcc28c66a74b5b3f1a3ede0aa6729bfd48e4 Author: Wey-Yi Guy <wey-yi.w.guy@intel.com> Date: Fri Jan 15 13:42:58 2010 -0800 iwlwifi: Fix throughput stall issue in HT mode for 5000 Similar to 6000 and 1000 series, RTS/CTS is the recommended protection mechanism for 5000 series in HT mode based on the HW design. Using RTS/CTS will better protect the inner exchange from interference, especially in highly-congested environment, it also prevent uCode encounter TX FIFO underrun and other HT mode related performance issues. For 3945 and 4965, different flags are used for RTS/CTS or CTS-to-Self protection. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| | * | | iwlwifi: fix multicastJohannes Berg2010-06-251-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 3474ad635db371b0d8d0ee40086f15d223d5b6a4 Author: Johannes Berg <johannes.berg@intel.com> Date: Thu Apr 29 04:43:05 2010 -0700 iwlwifi: apply filter flags directly broke multicast. The reason, it turns out, is that the code previously checked if ALLMULTI _changed_, which the new code no longer did, and normally it _never_ changes. Had somebody changed it manually, the code prior to my patch there would have been broken already. The reason is that we always, unconditionally, ask the device to pass up all multicast frames, but the new code made it depend on ALLMULTI which broke it since now we'd pass up multicast frames depending on the default filter in the device, which isn't necessarily what we want (since we don't program it right now). Fix this by simply not checking allmulti as we have allmulti behaviour enabled already anyway. Reported-by: Maxim Levitsky <maximlevitsky@gmail.com> Tested-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| | * | | ath9k: Fix bug in starting aniVasanthakumar Thiagarajan2010-06-232-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are few places where ANI is started without checking if it is right to start. This might lead to a case where ani timer would be left undeleted and cause improper memory acccess during module unload. This bug is clearly exposed with paprd support where the driver detects tx hang and does a chip reset. During this reset ani is (re)started without checking if it needs to be started. This would leave a timer scheduled even after all the resources are freed and cause a panic. This patch introduces a bit in sc_flags to indicate if ani needs to be started in sw_scan_start() and ath_reset(). This would fix the following panic. This issue is easily seen with ar9003 + paprd. BUG: unable to handle kernel paging request at 0000000000003f38 [<ffffffff81075391>] ? __queue_work+0x41/0x50 [<ffffffff8106afaa>] run_timer_softirq+0x17a/0x370 [<ffffffff81088be8>] ? tick_dev_program_event+0x48/0x110 [<ffffffff81061f69>] __do_softirq+0xb9/0x1f0 [<ffffffff810ba060>] ? handle_IRQ_event+0x50/0x160 [<ffffffff8100af5c>] call_softirq+0x1c/0x30 [<ffffffff8100c9f5>] do_softirq+0x65/0xa0 [<ffffffff81061e25>] irq_exit+0x85/0x90 [<ffffffff8155e095>] do_IRQ+0x75/0xf0 [<ffffffff815570d3>] ret_from_intr+0x0/0x11 <EOI> [<ffffffff812fd67b>] ? acpi_idle_enter_simple+0xe4/0x119 [<ffffffff812fd674>] ? acpi_idle_enter_simple+0xdd/0x119 [<ffffffff81441c87>] cpuidle_idle_call+0xa7/0x140 [<ffffffff81008da3>] cpu_idle+0xb3/0x110 [<ffffffff81550722>] start_secondary+0x1ee/0x1f5 Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | ixgbe: skip non IPv4 packets in ATR filterGuillaume Gaudonville2010-06-301-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In driver ixgbe, ixgbe_atr may cause crashes for non-ipv4 packets. Just add a test to check skb->protocol. It may crash on short packets due to ip_hdr() access. Signed-off-by: Guillaume Gaudonville <guillaume.gaudonville@6wind.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | ixgbe: disable tx engine before disabling tx laserJohn Fastabend2010-06-301-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Disabling the tx laser while receiving DMA requests can hang the device. After this occurs the device is in a bad state. The GPIO bit never clears when PCI master access is disabled and a reboot is required to get the device in a good state again. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | ixgbe: fix panic when shutting down system with WoL enabledAndy Gospodarek2010-06-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch added to 2.6.34: commit 5f6c01819979afbfec7e0b15fe52371b8eed87e8 Author: Jesse Brandeburg <jesse.brandeburg@intel.com> Date: Wed Apr 14 16:04:23 2010 -0700 ixgbe: fix bug with vlan strip in promsic mode among other things added a function called ixgbe_vlan_filter_enable. This new function wants to access and set some rx_ring parameters, but adapter->rx_ring has already been freed. This simply moves the free until after the access and makes __ixgbe_shutdown look more like ixgbe_remove. Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | bonding: prevent netpoll over bonded interfacesAndy Gospodarek2010-06-291-11/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support for netpoll over bonded interfaces was added here: commit f6dc31a85cd46a959bdd987adad14c3b645e03c1 Author: WANG Cong <amwang@redhat.com> Date: Thu May 6 00:48:51 2010 -0700 bonding: make bonding support netpoll but it is bad enough that we should probably just disable netpoll over bonding until some of the locking logic in the bonding driver is changed or converted completely to RCU. Simple actions like changing the active slave in active-backup mode will hang the box if a high enough printk debugging level is enabled. Keeping the old code around will be good for anyone that wants to work on it (and for after the RCU conversion), so I propose this small patch rather than ripping it all out. Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge branch 'drm-fixes' of ↵Linus Torvalds2010-07-073-39/+56
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: correctly update connector DPMS status in drm_fb_helper drm/radeon/kms: fix shared ddc handling drm/ttm: Allocate the page pool manager in the heap.
| * | | | | drm: correctly update connector DPMS status in drm_fb_helperJesse Barnes2010-07-071-3/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't currently update the DPMS status of the connector (both in the connector itself and the connector's DPMS property) in the fb helper code. This means that if the kernel FB core has blanked the screen, sysfs will still show a DPMS status of "on". It also means that when X starts, it will try to light up the connectors, but the drm_crtc_helper code will ignore the DPMS change since according to the connector, the DPMS status is already on. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=28436 (the annoying "my screen was blanked when I started X and now it won't light up" bug). Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | | | drm/radeon/kms: fix shared ddc handlingAlex Deucher2010-07-071-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Connectors with a shared ddc line can be connected to different encoders. Reported by Pasi Kärkkäinen <pasik@iki.fi> on dri-devel Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | | | drm/ttm: Allocate the page pool manager in the heap.Francisco Jerez2010-07-071-35/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Repeated ttm_page_alloc_init/fini fails noisily because the pool manager kobj isn't zeroed out between uses (we could do just that but statically allocated kobjects are generally considered a bad thing). Move it to kzalloc'ed memory. Note that this patch drops the refcounting behavior of the pool allocator init/fini functions: it would have led to a race condition in its current form, and anyway it was never exploited. This fixes a regression with reloading kms modules at runtime, since page allocator was introduced. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | | | | | pcmcia: do not initialize the present flag too late.Dominik Brodowski2010-07-051-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "present" flag was initialized too late -- possibly, a card was already registered at this time, so re-setting the flag to 0 caused pcmcia_dev_present() to fail. Reported-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>