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path: root/drivers/infiniband/hw
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2009-10-11headers: remove sched.h from interrupt.hAlexey Dobriyan
After m68k's task_thread_info() doesn't refer to current, it's possible to remove sched.h from interrupt.h and not break m68k! Many thanks to Heiko Carstens for allowing this. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-10-07RDMA/cxgb3: Handle NULL inetdev pointer in iwch_query_port()Steve Wise
in_dev_get() can return NULL. If it does, iwch_query_port() will crash. Handle the NULL case by mapping it to port state INIT. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-27const: mark struct vm_struct_operationsAlexey Dobriyan
* mark struct vm_area_struct::vm_ops as const * mark vm_ops in AGP code But leave TTM code alone, something is fishy there with global vm_ops being used. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-24Merge 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: IPoIB: Don't turn on carrier for a non-active port IB/mthca: Fix access to freed memory in catastrophic event handling mlx4_core: Pass cache line size to device FW RDMA/nes: Remove duplicate .ndo_set_mac_address field initialization IB/mad: Fix lock-lock-timer deadlock in RMPP code
2009-09-24Merge branches 'ipoib', 'mad', 'mlx4', 'mthca' and 'nes' into for-linusRoland Dreier
2009-09-24IB/mthca: Fix access to freed memory in catastrophic event handlingJack Morgenstein
catas_reset() uses a pointer to mthca_dev, but mthca_dev is not valid after the call to __mthca_restart_one(). Based on a similar patch for mlx4 (634354d7, "mlx4: Fix access to freed memory") by Vitaliy Gusev <vgusev@openvz.org> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-24RDMA/nes: Remove duplicate .ndo_set_mac_address field initializationJulia Lawall
The definition of nes_netdev_ops has initializations of a local function and eth_mac_addr for its ndo_set_mac_address field. This change uses only the local function. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier I, s, fld; position p0,p; expression E; @@ struct I s =@p0 { ... .fld@p = E, ...}; @s@ identifier I, s, r.fld; position r.p0,p; expression E; @@ struct I s =@p0 { ... .fld@p = E, ...}; @script:python@ p0 << r.p0; fld << r.fld; ps << s.p; pr << r.p; @@ if int(ps[0].line)!=int(pr[0].line) or int(ps[0].column)!=int(pr[0].column): cocci.print_main(fld,p0) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-23walk system ram rangeKAMEZAWA Hiroyuki
Originally, walk_memory_resource() was introduced to traverse all memory of "System RAM" for detecting memory hotplug/unplug range. For doing so, flags of IORESOUCE_MEM|IORESOURCE_BUSY was used and this was enough for memory hotplug. But for using other purpose, /proc/kcore, this may includes some firmware area marked as IORESOURCE_BUSY | IORESOUCE_MEM. This patch makes the check strict to find out busy "System RAM". Note: PPC64 keeps their own walk_memory_resouce(), which walk through ppc64's lmb informaton. Because old kclist_add() is called per lmb, this patch makes no difference in behavior, finally. And this patch removes CONFIG_MEMORY_HOTPLUG check from this function. Because pfn_valid() just show "there is memmap or not* and cannot be used for "there is physical memory or not", this function is useful in generic to scan physical memory range. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Américo Wang <xiyou.wangcong@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-21trivial: fix typo "for for" in multiple filesAnand Gadiyar
trivial: fix typo "for for" in multiple files Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-15driver model: constify attribute groupsDavid Brownell
Let attribute group vectors be declared "const". We'd like to let most attribute metadata live in read-only sections... this is a start. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits) netxen: update copyright netxen: fix tx timeout recovery netxen: fix file firmware leak netxen: improve pci memory access netxen: change firmware write size tg3: Fix return ring size breakage netxen: build fix for INET=n cdc-phonet: autoconfigure Phonet address Phonet: back-end for autoconfigured addresses Phonet: fix netlink address dump error handling ipv6: Add IFA_F_DADFAILED flag net: Add DEVTYPE support for Ethernet based devices mv643xx_eth.c: remove unused txq_set_wrr() ucc_geth: Fix hangs after switching from full to half duplex ucc_geth: Rearrange some code to avoid forward declarations phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs drivers/net/phy: introduce missing kfree drivers/net/wan: introduce missing kfree net: force bridge module(s) to be GPL Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded ... Fixed up trivial conflicts: - arch/x86/include/asm/socket.h converted to <asm-generic/socket.h> in the x86 tree. The generic header has the same new #define's, so that works out fine. - drivers/net/tun.c fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that switched over to using 'tun->socket.sk' instead of the redundantly available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks to the TUN driver") which added a new 'tun->sk' use. Noted in 'next' by Stephen Rothwell.
2009-09-10Merge branches 'cxgb3', 'ehca', 'ipath', 'ipoib', 'misc', 'mlx4', 'mthca' ↵Roland Dreier
and 'nes' into for-linus
2009-09-09RDMA/cxgb3: Clean up properly on FW mismatch failuresSteve Wise
FW mismatches can cause a crash in the iw_cxgb3 event handler. - NULL the t3cdev->ulp pointer on failures in cxio_rdev_open() - Silently ignore events when the ulp ptr is NULL in iwch_err_handler() Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-09RDMA/cxgb3: Don't ignore insert_handle() failuresSteve Wise
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Map MTU to IB_MTU_* and correctly report link stateChien Tung
Old query_port code reports static MTU and link state values. Instead, map actual MTU to next largest IB_MTU_* constant and correctly report link state. Cc: Steve Wise <swise@opengridcomputing.com> Reported-by: Jeff Squyres <jsquyres@cisco.com> Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Rework the disconn routine for terminate and flushingDon Wood
The disconn routine has been reworked to acoomodate the terminate and flushing changes. The routine has been reorganized to make all the decisions at the start then it performs all the required operations. This simplified the lock handling and is easier to follow. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Use the flush code to fill in cqe errorDon Wood
Use the flush status to fill in cqe status when a specific error has been identified. Subsequent flushed completions still use the flushed value. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Make poll_cq return correct number of wqes during flushDon Wood
When a flush request is given to the hw, it will place one cqe marked as flushed (unless there is nothing to flush). An application that is waiting for all wqe's to complete will be left hanging. This modifies poll_cq to return the correct number of flushes for the pending elements on the wq. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Use flush mechanism to set status for wqe in errorDon Wood
When an asynchronous event occurs that requires a terminate, it is sometimes possible to identify the wqe in error. This change uses flush to get this information to the poll routine. The flush operation puts the status into the cqe. If this information is not available, it continues to use the more generic flush code as before. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Implement Terminate PacketDon Wood
Implement the sending and receiving of Terminate packets. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Add CQ error handlingDon Wood
CQ errors are not being handled correctly. Put in the the upcall for CQ errors. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Clean out CQ completions when QP is destroyedDon Wood
When a QP is destroyed, unprocessed CQ entries could still reference the QP. This change zeroes the context value at QP destroy time. By skipping over cqe's with a zero context, poll_cq no longer processes a cqe for a destroyed QP. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Change memory allocation for cqp request to GFP_ATOMICDon Wood
The routine to allocate a cqp request is not called from process context code. Since it is not OK to sleep, it needs to use GFP_ATOMIC not GFP_KERNEL. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Allocate work item for disconnect event handlingDon Wood
The code currently has a work structure in the QP. This requires a lock and a pending flag to ensure there is never more than one request active. When two events happen quickly (such as FIN and LLP CLOSE), it causes unnecessary timeouts since the second one is dropped. This fix allocates memory for the work request so the second one can be queued. A lock is removed since it is no longer needed. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/nes: Update refcnt during disconnectDon Wood
During termination, it is possible for the refcnt to go to zero while the worker thread is posting events upward. This fix increments the refcnt before the request is passed to the worker thread. The thread decrements the refcnt when the request is completed. Signed-off-by: Don Wood <donald.e.wood@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/mthca: Don't allow userspace open while recovering from catastrophic errorJack Morgenstein
Userspace apps are supposed to release all ib device resources if they receive a fatal async event (IBV_EVENT_DEVICE_FATAL). However, the app has no way of knowing when the device has come back up, except to repeatedly attempt ibv_open_device() until it succeeds. However, currently there is no protection against the open succeeding while the device is in being removed following the fatal event. In this case, the open will succeed, but as a result the device waits in the middle of its removal until the new app releases its resources -- and the new app will not do so, since the open succeeded at a point following the fatal event generation. This patch adds an "active" flag to the device. The active flag is set to false (in the fatal event flow) before the "fatal" event is generated, so any subsequent ibv_dev_open() call to the device will fail until the device comes back up, thus preventing the above deadlock. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/mthca: Distinguish multiple devices in /proc/interruptsArputham Benjamin
When the mthca driver uses the same name for interrupts for every device in the system. This can make it very confusing trying to work out exactly which device MSI-X interrupts are for. Change the driver to add the PCI name of the device to the interrupt name. Signed-off-by: Arputham Benjamin <abenjamin@sgi.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/mthca: Annotate CQ lockingRoland Dreier
mthca_ib_lock_cqs()/mthca_ib_unlock_cqs() are helper functions that lock/unlock both CQs attached to a QP in the proper order to avoid AB-BA deadlocks. Annotate this so sparse can understand what's going on (and warn us if we misuse these functions). Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/mthca: Remove unnecessary include of <linux/init.h>Roland Dreier
mthca_reset.c doesn't have any function annotations, so there's no reason to include <linux/init.h>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/mthca: Remove unnecessary include of <asm/page.h>Roland Dreier
mthca_config_reg.h was including <asm/page.h> for no reason -- the whole file is just defines of constants, so it's entirely self-contained. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/mlx4: Don't allow userspace open while recovering from catastrophic errorJack Morgenstein
Userspace apps are supposed to release all ib device resources if they receive a fatal async event (IBV_EVENT_DEVICE_FATAL). However, the app has no way of knowing when the device has come back up, except to repeatedly attempt ibv_open_device() until it succeeds. However, currently there is no protection against the open succeeding while the device is in being removed following the fatal event. In this case, the open will succeed, but as a result the device waits in the middle of its removal until the new app releases its resources -- and the new app will not do so, since the open succeeded at a point following the fatal event generation. This patch adds an "active" flag to the device. The active flag is set to false (in the fatal event flow) before the "fatal" event is generated, so any subsequent ibv_dev_open() call to the device will fail until the device comes back up, thus preventing the above deadlock. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/mlx4: Annotate CQ lockingRoland Dreier
mlx4_ib_lock_cqs()/mlx4_ib_unlock_cqs() are helper functions that lock/unlock both CQs attached to a QP in the proper order to avoid AB-BA deadlocks. Annotate this so sparse can understand what's going on (and warn us if we misuse these functions). Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/amso1100: Check kmalloc() result in c2_register_device()Roel Kluin
dev->ibdev.iwcm allocation may fail, prevent a dereference. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB: Use printk_once() for driver versionsMarcin Slusarz
Replace open-coded reimplementations with printk_once(). Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/amso1100: Use %pM conversion specifierTobias Klauser
Use the %pM conversion specifier to print a MAC address. Signed-off-by: Tobias Klauser <klto@zhaw.ch> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/ipath: strncpy() doesn't always NUL-terminateRoel Kluin
strlcpy() will always null terminate the string. node_desc is not guaranteed to be NUL-terminated so just use memcpy(). Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/ehca: Fix CQE flags reportingJoachim Fenkes
The driver was reporting CQE flags in the wrong bit positions, causing consumers to miss incoming immediate data. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/ehca: Construct MAD redirect replies from request MADJoachim Fenkes
The old code used a lot of hard-coded values, which might not be valid in all environments (especially routed fabrics or partitioned subnets). Copy as much information as possible from the incoming request to correct that. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05IB/ehca: Make port autodetect mode the defaultAlexander Schmidt
Make port autodetect mode the default for the ehca driver. The autodetect code has been in the kernel for several releases now and has proved to be stable. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/cxgb3: Wake up any waiters on peer close/abortSteve Wise
A close/abort while waiting for a wr_ack during connection migration can cause a hung process in iwch_accept_cr/iwch_reject_cr. The fix is to set rpl_error/rpl_done and wake up the waiters when we get a close/abort while in MPA_REQ_RCVD state. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/cxgb3: Don't free endpoints earlySteve Wise
- Keep ref on connection request endpoints until either accepted or rejected so it doesn't get freed early. - Endpoint flags now need to be set via atomic bitops because they can be set on both the iw_cxgb3 workqueue thread and user disconnect threads. - Don't move out of CLOSING too early due to multiple calls to iwch_ep_disconnect. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/cxgb3: Handle port events properlySteve Wise
Massage the err_handler upcall into an event handler upcall, pass netdev port events to the cxgb3 ULPs and generate RDMA port events based on LLD port events. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/cxgb3: Set the appropriate IO channel in rdma_init work requestsSteve Wise
Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-05RDMA/cxgb3: iwch_unregister_device leaks memorySteve Wise
The iwcm struct mem is never freed. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-09-02drivers: Kill now superfluous ->last_rx storesEric Dumazet
The generic packet receive code takes care of setting netdev->last_rx when necessary, for the sake of the bonding ARP monitor. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Neil Horman <nhorman@txudriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-02netdev: drivers should make ethtool_ops constStephen Hemminger
No need to put ethtool_ops in data, they should be const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-23Merge branches 'ehca', 'misc', 'mlx4', 'mthca' and 'nes' into for-linusRoland Dreier
2009-06-23IB/ehca: Bump version numberAlexander Schmidt
Increment version number for DMEM toleration. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-22IB/mthca: Replace dma_sync_single() use with proper functionsRoland Dreier
dma_sync_single() is deprecated now, and the use in mthca is wrong: there should be a dma_sync_single_for_cpu() before touching the memory from the CPU, and a dma_sync_single_for_device() afterwards. Fix this, prompted by a kick in the pants from a patch from FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-22RDMA/nes: Fix FIN state handling under error conditionsFaisal Latif
During cluster testing, one QP was not closed, as FIN is not handled properly when its rexmit count expires or in some cases when RST is is received after sending FIN. The reason is that the cm_id does not get decremented under these conditions. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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