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2011-07-19slip: remove unused 'line' field from the 'slip' structureMatvejchikov Ilya
Signed-off-by: Matvejchikov Ilya <matvejchikov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19Merge branch 'vhost-net-next' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2011-07-19Merge branch 'davem-next.r8169' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6
2011-07-19bnx2x: disable FCoE for 578xx devices since not yet supportedDmitry Kravkov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: fix memory barriersVladislav Zolotarov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: use BNX2X_Q_FLG_TPA_IPV6 for TPA queue configurationVladislav Zolotarov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: disable loacal BH when scheduling FCOE napiVladislav Zolotarov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: fix MB index for 4-port devicesDmitry Kravkov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: DCB reworkDmitry Kravkov
create DCB related states in function state-machine allow handling of DCB errors from FW allow disablement of DCB in FW, when peer disappears or error clean up unused functions/variables as pointed by David Binderman <dcb314@hotmail.com> Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: remove unnecessary dma_syncVladislav Zolotarov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: stop tx before CNIC_STOPVladislav Zolotarov
It may take some time to cnic to respond, this prevents tx_timeout when it happens. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: add missing command in error handling flowDmitry Kravkov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19bnx2x: use correct dma_sync functionVladislav Zolotarov
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-19r8169: fix sticky accepts packet bits in RxConfig.Francois Romieu
e542a2269f232d61270ceddd42b73a4348dee2bb (r8169: adjust the RxConfig settings) broke the return from promiscuous mode to physical address match mode. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Signed-off-by: Hayes Wang <hayeswang@realtek.com>
2011-07-19vhost: optimize interrupt enable/disableMichael S. Tsirkin
As we now only update used ring after enabling the backend, we can write flags with __put_user: as that's done on data path, it matters. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-07-19vhost: fix zcopy reference countingMichael S. Tsirkin
Fix get/put refcount imbalance with zero copy, which caused qemu to hang forever on guest driver unload. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-07-19vhost: set log when updating used flags or avail eventJason Wang
We need to log writes when updating used flags and avail event fields. Otherwise the guest may see a stale value after migration and miss notifying the host. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-07-19vhost: init used ring after backend was setJason Wang
Move the used ring initialization after backend was set. This makes it possible to disable the backend and tweak the used ring, then restart. This will also make it possible to log the used ring write correctly. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-07-18net: can: remove custom hex_to_bin()Andy Shevchenko
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18stmmac: Allow SOCs to use Store forward mode eventhough tx_coe is 0. (V2)Srinivas Kandagatla
This patch adds new field 'force_sf_dma_mode' to plat_stmmacenet_data struct to allow users to specify if they want to use force store forward eventhough tx_coe is not available in hw. without this flag stmmac driver will use cut-thru mode not use store-forward mode. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18stmmac: add memory barriers at appropriate placesShiraz Hashim
This patch, provided by ST SPEAr developers, has fixed a problem raised on ARM CA9 where happened that the dma_transmission was enabled before the dma descriptors were properly filled. To guarantee this data memory barriers have been explicity used in the driver. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18vhost: vhost TX zero-copy supportMichael S. Tsirkin
>From: Shirley Ma <mashirle@us.ibm.com> This adds experimental zero copy support in vhost-net, disabled by default. To enable, set experimental_zcopytx module option to 1. This patch maintains the outstanding userspace buffers in the sequence it is delivered to vhost. The outstanding userspace buffers will be marked as done once the lower device buffers DMA has finished. This is monitored through last reference of kfree_skb callback. Two buffer indices are used for this purpose. The vhost-net device passes the userspace buffers info to lower device skb through message control. DMA done status check and guest notification are handled by handle_tx: in the worst case is all buffers in the vq are in pending/done status, so we need to notify guest to release DMA done buffers first before we get any new buffers from the vq. One known problem is that if the guest stops submitting buffers, buffers might never get used until some further action, e.g. device reset. This does not seem to affect linux guests. Signed-off-by: Shirley <xma@us.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18ipv4: save cpu cycles from check_leaf()Eric Dumazet
Compiler is not smart enough to avoid double BSWAP instructions in ntohl(inet_make_mask(plen)). Lets cache this value in struct leaf_info, (fill a hole on 64bit arches) With route cache disabled, this saves ~2% of cpu in udpflood bench on x86_64 machine. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18net: Add ->neigh_lookup() operation to dst_opsDavid S. Miller
In the future dst entries will be neigh-less. In that environment we need to have an easy transition point for current users of dst->neighbour outside of the packet output fast path. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-17net: Abstract dst->neighbour accesses behind helpers.David S. Miller
dst_{get,set}_neighbour() Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-17ipv6: Get rid of rt6i_nexthop macro.David S. Miller
It just makes it harder to see 1) what the code is doing and 2) grep for all users of dst{->,.}neighbour Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-17neigh: Pass neighbour entry to output ops.David S. Miller
This will get us closer to being able to do "neigh stuff" completely independent of the underlying dst_entry for protocols (ipv4/ipv6) that wish to do so. We will also be able to make dst entries neigh-less. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-17net: vlan, qlcnic: make vlan_find_dev privateDavid Lamparter
there is only one user of vlan_find_dev outside of the actual vlan code: qlcnic uses it to iterate over some VLANs it knows. let's just make vlan_find_dev private to the VLAN code and have the iteration in qlcnic be a bit more direct. (a few rcu dereferences less too) Signed-off-by: David Lamparter <equinox@diac24.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Amit Kumar Salecha <amit.salecha@qlogic.com> Cc: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Cc: linux-driver@qlogic.com Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-17net: add 802.1ad / 802.1ah / QinQ ethertypesDavid Lamparter
define ETH_P_8021AD to 88a8 (assigned by IEEE) and add ETH_P_QINQ{1,2,3} for the pre-standard 9{1,2,3}00 types. all of them use 802.1q frame format, with 1 bit used differently in some cases. also define ETH_P_8021AH to 88e7 (assigned by IEEE). this is Mac-in-Mac and uses a different, 16-byte header. Signed-off-by: David Lamparter <equinox@diac24.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16neigh: Kill ndisc_ops->queue_xmitDavid S. Miller
It is always dev_queue_xmit(). Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16neigh: Kill hh_cache->hh_outputDavid S. Miller
It's just taking on one of two possible values, either neigh_ops->output or dev_queue_xmit(). And this is purely depending upon whether nud_state has NUD_CONNECTED set or not. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16neigh: Kill neigh_ops->hh_outputDavid S. Miller
It's always dev_queue_xmit(). Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16neigh: Simply destroy handling wrt. hh_cache.David S. Miller
Now that hh_cache entries are embedded inside of neighbour entries, their lifetimes and accesses are now synchronous to that of the encompassing neighbour object. Therefore we don't need to hook up the blackhole op to hh_output on destroy. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16net: Create and use new helper, neigh_output().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16ipv6: Use calculated 'neigh' instead of re-evaluating dst->neighbourDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16ipv4: Use calculated 'neigh' instead of re-evaluating dst->neighbourDavid S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16bnx2x: Fix compilation when CNIC is not selected in configDmitry Kravkov
Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-1668360enet: Remove Kconfig/Makefile referencesJeff Kirsher
68360enet.c no longer exists, and from the research, it appears that 68360enet.c became fec.c back in 2004. The Kconfig and Makefile references were never cleaned up. This patch removes this "dead" references. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16bnx2: Close device if tx_timeout reset failsMichael Chan
Based on original patch and description from Flavio Leitner <fbl@redhat.com> When bnx2_reset_task() is called, it will stop, (re)initialize and start the interface to restore the working condition. The bnx2_init_nic() calls bnx2_reset_nic() which will reset the chip and then calls bnx2_free_skbs() to free all the skbs. The problem happens when bnx2_init_chip() fails because bnx2_reset_nic() will just return skipping the ring initializations at bnx2_init_all_rings(). Later, the reset task starts the interface again and the system crashes due a NULL pointer access (no skb in the ring). To fix it, we call dev_close() if bnx2_init_nic() fails. One minor wrinkle to deal with is the cancel_work_sync() call in bnx2_close() to cancel bnx2_reset_task(). The call will wait forever because it is trying to cancel itself and the workqueue will be stuck. Since bnx2_reset_task() holds the rtnl_lock() and checks for netif_running() before proceeding, there is no need to cancel bnx2_reset_task() in bnx2_close() even if bnx2_close() and bnx2_reset_task() are running concurrently. The rtnl_lock() serializes the 2 calls. We need to move the cancel_work_sync() call to bnx2_remove_one() to make sure it is canceled before freeing the netdev struct. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-15Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2011-07-158139cp: convert to new VLAN model.françois romieu
The registers and descriptors bits are identical to the pre-8168 8169 chipsets : {RxDesc / TxDesc}.opts2 can only contain VLAN information. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Reviewed-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-15Remove redundant variable/code in __qdisc_runKrishna Kumar
Remove redundant variable "work". Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-15slcan: remove obsolete code in slcan initialisationOliver Hartkopp
This patch removes obsolete code in the initialisation/creation of slcan devices. It follows the suggested cleanups from Ilya Matvejchikov in drivers/net/slip.c that where recently applied to net-next-2.6: - slip: remove dead code within the slip initialization - slip: remove redundant check slip_devs for NULL Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-15Separate handling of irq type flags variable from the irq_flags request_irq ↵Shyam Iyer
variable Commit 5f77898de17ff983ff0e2988b73a6bdf4b6f9f8b does not completely fix the problem of handling allocations with irqs disabled.. The below patch on top of it fixes the problem completely. Based on review by "Ivan Vecera" <ivecera@redhat.com>.. " Small note, the root of the problem was that non-atomic allocation was requested with IRQs disabled. Your patch description does not contain wwhy were the IRQs disabled. The function bnad_mbox_irq_alloc incorrectly uses 'flags' var for two different things, 1) to save current CPU flags and 2) for request_irq call. First the spin_lock_irqsave disables the IRQs and saves _all_ CPU flags (including one that enables/disables interrupts) to 'flags'. Then the 'flags' is overwritten by 0 or 0x80 (IRQF_SHARED). Finally the spin_unlock_irqrestore should restore saved flags, but these flags are now either 0x00 or 0x80. The interrupt bit value in flags register on x86 arch is 0x100. This means that the interrupt bit is zero (IRQs disabled) after spin_unlock_irqrestore so the request_irq function is called with disabled interrupts. " Signed-off-by: Shyam Iyer <shyam_iyer@dell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-15Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: net/bluetooth/l2cap_core.c
2011-07-14net/ps3: Fix gelic RX DMA restartGeoff Levand
Fix the condition where PS3 network RX hangs when no network TX is occurring by calling gelic_card_enable_rxdmac() during RX_DMA_CHAIN_END event processing. The gelic hardware automatically clears its RX_DMA_EN flag when it detects an RX_DMA_CHAIN_END event. In its processing of RX_DMA_CHAIN_END the gelic driver is required to set RX_DMA_EN (with a call to gelic_card_enable_rxdmac()) to restart RX DMA transfers. The existing gelic driver code does not set RX_DMA_EN directly in its processing of the RX_DMA_CHAIN_END event, but uses a flag variable card->rx_dma_restart_required to schedule the setting of RX_DMA_EN until next inside the interrupt handler. It seems this delayed setting of RX_DMA_EN causes the hang since the next RX interrupt after the RX_DMA_CHAIN_END event where RX_DMA_EN is scheduled to be set will not occur since RX_DMA_EN was not set. In the case were network TX is occuring, RX_DMA_EN is set in the next TX interrupt and RX processing continues. Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-14bnx2x: Multiple concurrent l2 traffic classesAriel Elior
Overview: Support mapping of priorities to traffic classes and traffic classes to transmission queues ranges in the net device. The queue ranges are (count, offset) pairs relating to the txq array. This can be done via DCBX negotiation or by kernel. As a result Enhanced Transmission Selection (ETS) and Priority Flow Control (PFC) are supported between L2 network traffic classes. Mapping: This patch uses the netdev_set_num_tc, netdev_set_prio_tc_map and netdev_set_tc_queue functions to map priorities to traffic classes and traffic classes to transmission queue ranges. This mapping is performed by bnx2x_setup_tc function which is connected to the ndo_setup_tc. This function is always called at nic load where by default it maps all priorities to tc 0, and it may also be called by the kernel or by the bnx2x upon DCBX negotiation to modify the mapping. rtnl lock: When the ndo_setup_tc is called at nic load or by kernel the rtnl lock is already taken. However, when DCBX negotiation takes place the lock is not taken. The work is therefore scheduled to be handled by the sp_rtnl task. Fastpath: The fastpath structure of the bnx2x which was previously used to hold the information of one tx queue and one rx queue was redesigned to represent multiple tx queues, one for each traffic class. The transmission queue supplied in the skb by the kernel can no longer be interpreted as a straightforward index into the fastpath structure array, but it must rather be decoded to the appropriate fastpath index and the tc within that fastpath. Slowpath: The bnx2x's queue object was redesigned to accommodate multiple transmission queues. The queue object's state machine was enhanced to allow opening multiple transmission-only connections on top of the regular tx-rx connection. Firmware: This feature relies on the tx-only queue feature introduced in the bnx2x 7.0.23 firmware and the FW likewise must have the bnx2x multi cos support. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-14bnx2x: Renaming the "reset_task" to "sp_rtnl_task"Ariel Elior
Renaming the "reset_task" to a more general purpose name, "sp_rtnl_task", as it is already used for another purpose other than reset which is parity recovery, and since I plan to add a third operation for this task, updating the priority to traffic class and traffic class to transmission queues mappings after dcbx negotiation takes place. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-14Merge branch 'davem-next.r8169' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6
2011-07-14net: remove SK_ROUTE_CAPS from meta ematchMichał Mirosław
Remove it, as it indirectly exposes netdev features. It's not used in iproute2 (2.6.38) - is anything else using its interface? Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
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