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path: root/drivers/infiniband
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2010-08-05Merge branch 'for-next' of ↵Linus Torvalds4-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits) Documentation: update broken web addresses. fix comment typo "choosed" -> "chosen" hostap:hostap_hw.c Fix typo in comment Fix spelling contorller -> controller in comments Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault fs/Kconfig: Fix typo Userpace -> Userspace Removing dead MACH_U300_BS26 drivers/infiniband: Remove unnecessary casts of private_data fs/ocfs2: Remove unnecessary casts of private_data libfc: use ARRAY_SIZE scsi: bfa: use ARRAY_SIZE drm: i915: use ARRAY_SIZE drm: drm_edid: use ARRAY_SIZE synclink: use ARRAY_SIZE block: cciss: use ARRAY_SIZE comment typo fixes: charater => character fix comment typos concerning "challenge" arm: plat-spear: fix typo in kerneldoc reiserfs: typo comment fix update email address ...
2010-08-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds6-8/+19
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits) phy/marvell: add 88ec048 support igb: Program MDICNFG register prior to PHY init e1000e: correct MAC-PHY interconnect register offset for 82579 hso: Add new product ID can: Add driver for esd CAN-USB/2 device l2tp: fix export of header file for userspace can-raw: Fix skb_orphan_try handling Revert "net: remove zap_completion_queue" net: cleanup inclusion phy/marvell: add 88e1121 interface mode support u32: negative offset fix net: Fix a typo from "dev" to "ndev" igb: Use irq_synchronize per vector when using MSI-X ixgbevf: fix null pointer dereference due to filter being set for VLAN 0 e1000e: Fix irq_synchronize in MSI-X case e1000e: register pm_qos request on hardware activation ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice net: Add getsockopt support for TCP thin-streams cxgb4: update driver version cxgb4: add new PCI IDs ... Manually fix up conflicts in: - drivers/net/e1000e/netdev.c: due to pm_qos registration infrastructure changes - drivers/net/phy/marvell.c: conflict between adding 88ec048 support and cleaning up the IDs - drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req conflict (registration change vs marking it static)
2010-08-04Merge branch 'master' into for-nextJiri Kosina19-1166/+194
2010-07-20drivers/infiniband: Remove unnecessary casts of private_dataJoe Perches1-1/+1
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-07-09IB/qib: Use request_firmware() to load SD7220 firmwareBen Hutchings4-1100/+46
Extract the microcode for the QLogic QLE7220 series IB HCA and use the kernel microcode request facility to load the microcode. This supports Debian Linux's requirements to separate microcode which doesn't have open source code available from the device driver. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-07-08Merge branch 'for-linus' of ↵Linus Torvalds15-66/+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
2010-07-08Merge branches 'cxgb4', 'ipoib' and 'qib' into for-nextRoland Dreier9-41/+106
2010-07-07IPoIB: Fix world-writable child interface control sysfs attributesOr Gerlitz1-2/+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>
2010-07-07IB/qib: Clean up properly if qib_init() failsRalph Campbell1-0/+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>
2010-07-07IB/qib: Completion queue callback needs to be single threadedRalph Campbell1-1/+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>
2010-07-07IB/qib: Update 7322 serdes tablesRalph Campbell1-4/+12
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-07-07IB/qib: Clear 6120 hardware error registerRalph Campbell1-2/+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>
2010-07-07IB/qib: Clear eager buffer memory for each new processRalph Campbell1-0/+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>
2010-07-07IB/qib: Mask hardware error during link resetRalph Campbell2-26/+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>
2010-07-07IB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problemDave Olson6-6/+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>
2010-07-07RDMA/cxgb4: Derive smac_idx from port viidSteve Wise1-4/+5
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-07-07RDMA/cxgb4: Avoid false GTS CIDX_INC overflowsSteve Wise1-5/+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>
2010-07-07RDMA/cxgb4: Don't call abort_connection() for active connect failuresSteve Wise1-1/+2
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-07-07RDMA/cxgb4: Use the DMA state API instead of the pci equivalentsFUJITA Tomonori5-15/+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>
2010-07-04IB/{nes, ipoib}: Pass supported flags to ethtool_op_set_flags()Ben Hutchings2-2/+13
Following commit 1437ce3983bcbc0447a0dedcd644c14fe833d266 "ethtool: Change ethtool_op_set_flags to validate flags", ethtool_op_set_flags takes a third parameter and cannot be used directly as an implementation of ethtool_ops::set_flags. Changes nes and ipoib driver to pass in the appropriate value. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-16Merge branch 'master' into for-nextJiri Kosina79-5143/+50659
2010-06-16fix typos concerning "initiali[zs]e"Uwe Kleine-König1-1/+1
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-16fix typos concerning "hierarchy"Uwe Kleine-König2-4/+4
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-11net-next: remove useless union keywordChangli Gao4-6/+6
remove useless union keyword in rtable, rt6_info and dn_route. Since there is only one member in a union, the union keyword isn't useful. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-05fix the deadlock in qib_fsAl Viro1-3/+1
get_sb_single() calls fill_super with superblock locked; calling deactivate_super() will deadlock immedately. Moreover, if fill_super callback returns an error, get_sb_single() will release the reference to superblock itself just fine. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-05-30Merge branch 'for-linus' of ↵Linus Torvalds5-622/+203
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: IB/qib: Remove DCA support until feature is finished IB/qib: Use a single txselect module parameter for serdes tuning IB/qib: Don't rely on (undefined) order of function parameter evaluation IB/ucm: Use memdup_user() IB/qib: Fix undefined symbol error when CONFIG_PCI_MSI=n
2010-05-27Merge branches 'misc' and 'qib' into for-nextRoland Dreier4-614/+200
2010-05-27IB/qib: Remove DCA support until feature is finishedRalph Campbell1-189/+0
The DCA code was left over from internal development to test the hardware feature and allow performance testing. The results were mixed and will require some additional work to make full use of the feature. Therefore, it is being removed for now. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-27ehca: convert cpu notifier to return encapsulate errno valueAkinobu Mita1-1/+1
By the previous modification, the cpu notifier can return encapsulate errno value. This converts the cpu notifiers for ehca. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27IB/qib: Use a single txselect module parameter for serdes tuningRalph Campbell1-403/+179
As part of the earlier patches submitted and reviewed, it was agreed to change the way serdes tuning parameters were specified to the driver. The updated patch got dropped by the linux-rdma email list so the earlier version of qib_iba7322.c ended up being used. This patch updates qib_iab7322.c to the simpler, single parameter method of setting the serdes parameters. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-27IB/qib: Don't rely on (undefined) order of function parameter evaluationRoland Dreier1-10/+15
Some of the qib sysfs code passes a buffer pointer into simple_read_from_buffer() but relies on a function call in another parameter of the same call to initialize that pointer. Since the order of evaluation of function parameters is undefined, this will break if gcc chooses the wrong order. Fix this by splitting the code into two separate function calls. This was noticed because of warnings like the following on ppc: drivers/infiniband/hw/qib/qib_fs.c: In function 'portcntrs_2_read': drivers/infiniband/hw/qib/qib_fs.c:203: warning: 'counters' is used uninitialized in this function Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-26IB/ucm: Use memdup_user()Julia Lawall1-8/+3
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk>
2010-05-26IB/qib: Fix undefined symbol error when CONFIG_PCI_MSI=nRalph Campbell2-12/+6
This patch fixes a compile error saying qib_init_iba6120_funcs() is undefined when CONFIG_PCI_MSI is not defined. Thanks to Randy Dunlap <randy.dunlap@oracle.com> for finding this and suggesting the fix. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25Merge branch 'for-linus' of ↵Linus Torvalds77-5126/+51061
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/nes: Fix incorrect unlock in nes_process_mac_intr() RDMA/nes: Async event for closed QP causes crash RDMA/nes: Have ethtool read hardware registers for rx/tx stats RDMA/cxgb4: Only insert sq qid in lookup table RDMA/cxgb4: Support IB_WR_READ_WITH_INV opcode RDMA/cxgb4: Set fence flag for inv-local-stag work requests RDMA/cxgb4: Update some HW limits RDMA/cxgb4: Don't limit fastreg page list depth RDMA/cxgb4: Return proper errors in fastreg mr/pbl allocation RDMA/cxgb4: Fix overflow bug in CQ arm RDMA/cxgb4: Optimize CQ overflow detection RDMA/cxgb4: CQ size must be IQ size - 2 RDMA/cxgb4: Register RDMA provider based on LLD state_change events RDMA/cxgb4: Detach from the LLD after unregistering RDMA device IB/ipath: Remove support for QLogic PCIe QLE devices IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters IB/mad: Make needlessly global mad_sendq_size/mad_recvq_size static IB/core: Allow device-specific per-port sysfs files mlx4_core: Clean up mlx4_alloc_icm() a bit mlx4_core: Fix possible chunk sg list overflow in mlx4_alloc_icm()
2010-05-25Merge branches 'cxgb4', 'misc', 'mlx4', 'nes' and 'qib' into for-nextRoland Dreier71-5051/+50957
2010-05-25RDMA/nes: Fix incorrect unlock in nes_process_mac_intr()Chien Tung1-1/+2
Commit ce6e74f2 ("RDMA/nes: Make nesadapter->phy_lock usage consistent") introduced a problem where phy_lock was only unlocked within an if statement and so nes_process_mac_intr() could return with phy_lock still held. Fix this. This was discovered because of the sparse warning: drivers/infiniband/hw/nes/nes_hw.c:2643:9: warning: context imbalance in 'nes_process_mac_intr' - different lock contexts for basic block Reported-by: Roland Dreier <rdreier@cisco.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/nes: Async event for closed QP causes crashFaisal Latif1-0/+9
Under abnormal termination, modify_qp() closes the QP, and async event (AE) handling also attempts to close the same QP, causing a crash. Fix this by checking the state of the QP before processing the AE. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/nes: Have ethtool read hardware registers for rx/tx statsFaisal Latif1-17/+55
Enhance ethtool to read hardware registers for rcv/tx error stats. Also add support for free pbl resources. Remove cq depth stats, which are not used. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Only insert sq qid in lookup tableSteve Wise1-16/+9
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Support IB_WR_READ_WITH_INV opcodeSteve Wise1-1/+5
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Set fence flag for inv-local-stag work requestsSteve Wise1-0/+2
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Update some HW limitsSteve Wise1-8/+9
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Don't limit fastreg page list depthSteve Wise1-3/+0
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Return proper errors in fastreg mr/pbl allocationSteve Wise1-2/+6
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Fix overflow bug in CQ armSteve Wise1-19/+12
- wrap cq->cqidx_inc based on cq size. - optimize t4_arm_cq logic. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Optimize CQ overflow detectionSteve Wise2-12/+17
1) save the timestamp flit in the cq when we consume a CQE. 2) always compare the saved flit with the previous entry flit when reading the next CQE entry. If the flits don't compare, then we have overflowed. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: CQ size must be IQ size - 2Steve Wise1-1/+4
We need 1 extra entry for the status page and 1 to always have 1 free entry to detect when the queue is full. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Register RDMA provider based on LLD state_change eventsSteve Wise3-10/+39
The LLD now supports proper UP state change events, so move the RDMA provider registration to UP path. This fixes a crash when loading iw_cxgb4 _after_ the NFS/RDMA transport is up and running. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25RDMA/cxgb4: Detach from the LLD after unregistering RDMA deviceSteve Wise1-3/+1
In the RDMA core unregister path, kernel users will be calling down into the T4 provider to release resources. So we cannot detach from the LLD until this process completes. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-24IB/ipath: Remove support for QLogic PCIe QLE devicesRalph Campbell9-7131/+7
The ib_qib driver is taking over support for QLogic PCIe QLE devices, so remove support for them from ib_ipath. The ib_ipath driver now supports only the obsolete QLogic Hyper-Transport IB host channel adapter (model QHT7140). Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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