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path: root/drivers/net/mlx4
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2009-08-23drivers/net: fixed drivers that support netpoll use ndo_start_xmit()Dongdong Deng
The NETPOLL API requires that interrupts remain disabled in netpoll_send_skb(). The use of "A functions set" in the NETPOLL API callbacks causes the interrupts to get enabled and can lead to kernel instability. The solution is to use "B functions set" to prevent the irqs from getting enabled while in netpoll_send_skb(). A functions set: local_irq_disable()/local_irq_enable() spin_lock_irq()/spin_unlock_irq() spin_trylock_irq()/spin_unlock_irq() B functions set: local_irq_save()/local_irq_restore() spin_lock_irqsave()/spin_unlock_irqrestore() spin_trylock_irqsave()/spin_unlock_irqrestore() Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-09mlx4_en: Fix read buffer overflow in mlx4_en_complete_rx_desc()roel kluin
If the length is less or equal to frag_prefix_size in the first iteration we write skb_frags_rx[-1] and read from priv->frag_info[-1] Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-08-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) ehea: Fix napi list corruption on ifconfig down igbvf: Allow VF driver to correctly recognize failure to set mac 3c59x: Fix build failure with gcc 3.2 sky2: Avoid transmits during sky2_down() iwlagn: do not send key clear commands when rfkill enabled libertas: Read buffer overflow drivers/net/wireless: introduce missing kfree drivers/net/wireless/iwlwifi: introduce missing kfree zd1211rw: fix unaligned access in zd_mac_rx cfg80211: fix regression on beacon world roaming feature cfg80211: add two missing NULL pointer checks ixgbe: Patch to modify 82598 PCIe completion timeout values bluetooth: rfcomm_init bug fix mlx4_en: Fix double pci unmapping. mISDN: Fix handling of receive buffer size in L1oIP pcnet32: VLB support fixes pcnet32: remove superfluous NULL pointer check in pcnet32_probe1() net: restore the original spinlock to protect unicast list netxen: fix coherent dma mask setting mISDN: Read buffer overflow ...
2009-08-02mlx4_en: Fix double pci unmapping.Yevgeny Petrilin
In cases of fragmented skb, with the data pointers being wrapped around the TX buffer, the completion handling code would not forward the data pointer and the firs fragment was unmapped several times, while others were not unmapped at all. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits) sky2: Avoid races in sky2_down drivers/net/mlx4: Adjust constant drivers/net: Move a dereference below a NULL test drivers/net: Move a dereference below a NULL test connector: maintainer/mail update. USB host CDC Phonet network interface driver macsonic, jazzsonic: fix oops on module unload macsonic: move probe function to .devinit.text can: switch carrier on if device was stopped while in bus-off state can: restart device even if dev_alloc_skb() fails can: sja1000: remove duplicated includes New device ID for sc92031 [1088:2031] 3c589_cs: re-initialize the multicast in the tc589_reset Fix error return for setsockopt(SO_TIMESTAMPING) netxen: fix thermal check and shutdown netxen: fix deadlock on dev close netxen: fix context deletion sequence net: Micrel KS8851 SPI network driver tcp: Use correct peer adr when copying MD5 keys tcp: Fix MD5 signature checking on IPv4 mapped sockets ...
2009-07-21drivers/net/mlx4: Adjust constantJulia Lawall
The values in the advertising field are typically ADVERTISED_xxx, not SUPPORTED_xxx. Both SUPPORTED_10000baseT_Full and ADVERTISED_1000baseT_Full have the same value. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ struct ethtool_cmd E; @@ *E.advertising = SUPPORTED_10000baseT_Full // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-06mlx4_core: Add new ConnectX EN PCI ID 0x6764Yevgeny Petrilin
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-07-06mlx4_core: Handle multi-physical function devicesYevgeny Petrilin
MT26468 (PCI ID 0x6764) devices can expose multiple physical functions. The current driver only handles the primary physical function. For other functions, the QUERY_FW firmware command will fail with the CMD_STAT_MULTI_FUNC_REQ error code. Don't try to drive such devices, but print a message saying the driver is skipping those devices rather than just "QUERY_FW command failed." Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> [ Rather than keeping unsupported devices bound to the driver, simply print a more informative error message and exit - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-23Merge branch 'for-linus' of ↵Linus Torvalds
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: RDMA: Add __init/__exit macros to addr.c and cma.c IB/ehca: Bump version number mlx4_core: Fix dma_sync_single_for_cpu() with matching for_device() calls IB/mthca: Replace dma_sync_single() use with proper functions RDMA/nes: Fix FIN state handling under error conditions RDMA/nes: Fix max_qp_init_rd_atom returned from query device IB/ehca: Ensure that guid_entry index is not negative IB/ehca: Tolerate dynamic memory operations before driver load
2009-06-22mlx4_core: Fix dma_sync_single_for_cpu() with matching for_device() callsRoland Dreier
Commit 5d23a1d2 ("net: replace dma_sync_single with dma_sync_single_for_cpu") replaced uses of the deprectated function dma_sync_single() with calls to dma_sync_single_for_cpu(). However, to be correct, the code should do a sync for_cpu() before touching the memory and for_device() after it's done. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-21mlx4_en: Remove redundant refill code on RXYevgeny Petrilin
Our RX rings are always full, there is no need to check whether we need to fill them or not. If we fail to allocate a new socket buffer, the incoming packet is dropped an the ring remains full. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-21mlx4_en: Removed redundant check on lso header sizeYevgeny Petrilin
This check that verifies that the LSO header along with control segment and first data segment do not cross 128 bytes is no longer required. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-21mlx4_en: Cancel port_up check in transmit functionYevgeny Petrilin
When closing the port, we stop all transmit queues under the transmit lock. It ensures that we will not attempt to transmit new packets after the physical port was closed. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-21mlx4_en: using stop/start_all_queuesYevgeny Petrilin
After we moved to be a multi queue device, need to stop/start all of our transmit queues. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-21mlx4_en: Removed redundant skb->len checkYevgeny Petrilin
We don't need this check in the transmit function Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-21mlx4_en: Counting all the dropped packets on the TX sideYevgeny Petrilin
Reporting the counter's value through 'ethtool -S' Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-15Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
2009-06-14Merge branch 'for-linus' of ↵Linus Torvalds
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: mlx4_core: Don't double-free IRQs when falling back from MSI-X to INTx IB/mthca: Don't double-free IRQs when falling back from MSI-X to INTx IB/mlx4: Add strong ordering to local inval and fast reg work requests IB/ehca: Remove superfluous bitmasks from QP control block RDMA/cxgb3: Limit fast register size based on T3 limitations RDMA/cxgb3: Report correct port state and MTU mlx4_core: Add module parameter for number of MTTs per segment IB/mthca: Add module parameter for number of MTTs per segment RDMA/nes: Fix off-by-one bugs in reset_adapter_ne020() and init_serdes() infiniband: Remove void casts IB/ehca: Increment version number IB/ehca: Remove unnecessary memory operations for userspace queue pairs IB/ehca: Fall back to vmalloc() for big allocations IB/ehca: Replace vmalloc() with kmalloc() for queue allocation
2009-06-14Merge branches 'cxgb3', 'ehca', 'misc', 'mlx4', 'mthca' and 'nes' into for-linusRoland Dreier
2009-06-14mlx4_core: Don't double-free IRQs when falling back from MSI-X to INTxRoland Dreier
When both MSI-X and legacy INTx fail to generate an interrupt, the driver frees the MSI-X interrupts twice. Fix this by clearing the have_irq flag for the MSI-X interrupts when they are freed the first time. This is the same bug that was reported in ib_mthca by Yinghai Lu <yhlu.kernel@gmail.com>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-12trivial: fix typos s/paramter/parameter/ and s/excute/execute/ in ↵Martin Olsson
documentation and source comments. Signed-off-by: Martin Olsson <martin@minimum.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-06-08mlx4: FIX error flow when initializing EQ tableYevgeny Petrilin
If mlx4_create_eq() would fail for one of EQ's assigned for completion handling, the code would try to free the same EQ we failed to create. The crash was found by Christoph Lameter Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/forcedeth.c
2009-06-02mlx4_en: Updated driver versionYevgeny Petrilin
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-02mlx4_en: Added vlan_features supportYevgeny Petrilin
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-02mlx4_en: multiqueue supportYevgeny Petrilin
By default the driver opens 8 TX queues (defined by MLX4_EN_NUM_TX_RINGS). If the driver is configured to support Per Priority Flow Control, we open 8 additional TX rings. dev->real_num_tx_queues is always set to be MLX4_EN_NUM_TX_RINGS. The mlx4_en_select_queue() function uses standard hashing (skb_tx_hash) in case that PPFC is not supported or the skb contain a vlan tag, otherwise the queue is selected according to vlan priority. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-02mlx4_en: Coalescing target is equal for all mtu'sYevgeny Petrilin
The interrupt moderation should not depend on number of incoming bytes, but on number of incoming packets. The previous scheme caused very high interrupts rate for small messages when big MTU was configured. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-02mlx4_en: Work with part of the ports.Yevgeny Petrilin
If the initialization of one of the ports failed, there is no need to fail the other one as well. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-02mlx4_en renamed en_params.c to en_ethtool.cYevgeny Petrilin
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-02mlx4_en: Moved all module parameters handling to en_main.cYevgeny Petrilin
en_params.c file now only handles Ethtool functionality Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-02mlx4_en: Giving interface name in debug messagesYevgeny Petrilin
For each debug message, the message will show interface name in case that the net device was registered, and PCI bus ID with port number if we were not registered yet. Messages that are not port/netdev specific stayed in the old format Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29mlx4_en: Fix a kernel panic when waking tx queueYevgeny Petrilin
When the transmit queue gets full we enable interrupts for TX completions There was a race that we handled the TX queue both from the interrupt context and from the transmit function. Using "spin_trylock_irq()" ensures this doesn't happen. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29net: replace dma_sync_single with dma_sync_single_for_cpuFUJITA Tomonori
This replaces dma_sync_single() with dma_sync_single_for_cpu() because dma_sync_single() is an obsolete API; include/linux/dma-mapping.h says: /* Backwards compat, remove in 2.7.x */ #define dma_sync_single dma_sync_single_for_cpu #define dma_sync_sg dma_sync_sg_for_cpu Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-29net: dont update dev->trans_start in 10GB driversEric Dumazet
Followup of commits 9d21493b4beb8f918ba248032fefa393074a5e2b and 08baf561083bc27a953aa087dd8a664bb2b88e8e (net: tx scalability works : trans_start) (net: txq_trans_update() helper) Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Multi queue drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers (vxge & tehuti) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-27mlx4_core: Add module parameter for number of MTTs per segmentEli Cohen
The current MTT allocator uses kmalloc() to allocate a buffer for its buddy allocator, and thus is limited in the amount of MTT segments that it can control. As a result, the size of memory that can be registered is limited too. This patch uses a module parameter to control the number of MTT entries that each segment represents, allowing more memory to be registered with the same number of segments. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-05-25mlx4_en: Fix partial rings featureYevgeny Petrilin
In case of allocation failure, the actual ring size is rounded down to nearest power of 2. The remaining descriptors are freed. The CQ and SRQ are allocated with the actual size and the mask is updated. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25mlx4_en: Removed redundant stride variableYevgeny Petrilin
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-17mlx4_en: Fix not deleted napi structuresYevgeny Petrilin
Napi structures are being created each time we open a port, but when the port is closed the napi structure is only disabled but not removed. This bug caused hang while removing the driver. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-12Remove unreached code in drivers/net/mlx4/en_rx.cDan Carpenter
Remove the return after the goto. We want the goto because it frees memory as well as returning err. Found by smatch (http://repo.or.cz/w/smatch.git). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits) e100: do not go D3 in shutdown unless system is powering off netfilter: revised locking for x_tables Bluetooth: Fix connection establishment with low security requirement Bluetooth: Add different pairing timeout for Legacy Pairing Bluetooth: Ensure that HCI sysfs add/del is preempt safe net: Avoid extra wakeups of threads blocked in wait_for_packet() net: Fix typo in net_device_ops description. ipv4: Limit size of route cache hash table Add reference to CAPI 2.0 standard Documentation/isdn/INTERFACE.CAPI update Documentation/isdn/00-INDEX ixgbe: Fix WoL functionality for 82599 KX4 devices veth: prevent oops caused by netdev destructor xfrm: wrong hash value for temporary SA forcedeth: tx timeout fix net: Fix LL_MAX_HEADER for CONFIG_TR_MODULE mlx4_en: Handle page allocation failure during receive mlx4_en: Fix cleanup flow on cq activation vlan: update vlan carrier state for admin up/down netfilter: xt_recent: fix stack overread in compat code ...
2009-04-28Merge branch 'for-linus' of ↵Linus Torvalds
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: (21 commits) RDMA/nes: Update iw_nes version RDMA/nes: Fix error path in nes_accept() RDMA/nes: Fix hang issues for large cluster dynamic connections RDMA/nes: Increase rexmit timeout interval RDMA/nes: Check for sequence number wrap-around RDMA/nes: Do not set apbvt entry for loopback RDMA/nes: Fix unused variable compile warning when INFINIBAND_NES_DEBUG=n RDMA/nes: Fix fw_ver in /sys RDMA/nes: Set trace length to 1 inch for SFP_D RDMA/nes: Enable repause timer for port 1 RDMA/nes: Correct CDR loop filter setting for port 1 RDMA/nes: Modify thermo mitigation to flip SerDes1 ref clk to internal RDMA/nes: Fix resource issues in nes_create_cq() and nes_destroy_cq() RDMA/nes: Remove root_256()'s unused pbl_count_256 parameter mlx4_core: Fix memory leak in mlx4_enable_msi_x() IB/mthca: Fix timeout for INIT_HCA and a few other commands RDMA/cxgb3: Don't zero QP attrs when moving to IDLE RDMA/nes: Fix bugs in nes_reg_phys_mr() RDMA/nes: Fix compiler warning at nes_verbs.c:1955 IPoIB: Disable NAPI while CQ is being drained ...
2009-04-27mlx4_en: Handle page allocation failure during receiveYevgeny Petrilin
If we failed to allocate new fragments for receive buffer, the packet should be dropped and packets should be reused. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27mlx4_en: Fix cleanup flow on cq activationYevgeny Petrilin
In case of mlx4_en_activate_cq() failure, the cleanup code would go to rx_err and try to disable unactivated rings. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21mlx4_core: Fix memory leak in mlx4_enable_msi_x()Nicolas Morey-Chaisemartin
When the msi_x option is enabled but pci_enable_msix() fails (not enough vectors are available etc), the entries array was not freed on the error path. Signed-off-by: Nicolas Morey-Chaisemartin <nicolas.morey-chaisemartin@ext.bull.net> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-04-21mlx4_en: Fix cleanup if workqueue create in mlx4_en_add() failsRoland Dreier
If creating a workqueue fails, don't jump to the error path where that same workqueue is destroyed, since destroy_workqueue() can't handle a NULL pointer. This was spotted by the Coverity checker (CID 2617). Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21mlx4_en: Move to SW counters for total bytes and packetsYevgeny Petrilin
The per ring counters are implemented in SW. Now moving to have the total counters as the sum of all rings. This way the numbers will always be consistent and we no longer depend on HW buffer size limitations for those counters that can be insufficient in some cases. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21mlx4_en: use NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM for tx csum at initializationYevgeny Petrilin
The former usage was to set the NETIF_F_HW_CSUM flag which is not used in get_tx_csum. It caused Ethtool to show tx checksum as "on" even though it was turned off in previous operation. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21mlx4_en: Assign dummy event handler for TX queueYevgeny Petrilin
The low level driver always assumes this handler exists. The lack of it could cause kernel panic Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21mlx4_en: Fix a race at restart taskYevgeny Petrilin
The query whether the port is up or not should be done at the execution of the restart task and not when it is queued. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-21mlx4_en: Fix error handling while activating RX ringsYevgeny Petrilin
In case of failure of either srq creation or page allocation, the cleanup code handled the failed ring as well, and tried to destroy resources that where not allocated. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>