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path: root/drivers/infiniband/hw/ehca
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2009-10-03this_cpu: Straight transformationsChristoph Lameter1-2/+1
Use this_cpu_ptr and __this_cpu_ptr in locations where straight transformations are possible because per_cpu_ptr is used with either smp_processor_id() or raw_smp_processor_id(). cc: David Howells <dhowells@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> cc: Ingo Molnar <mingo@elte.hu> cc: Rusty Russell <rusty@rustcorp.com.au> cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>
2009-09-27const: mark struct vm_struct_operationsAlexey Dobriyan1-1/+1
* 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>
2009-09-23walk system ram rangeKAMEZAWA Hiroyuki1-1/+1
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>
2009-09-15driver model: constify attribute groupsDavid Brownell1-1/+1
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>
2009-09-06IB/ehca: Fix CQE flags reportingJoachim Fenkes1-1/+5
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>
2009-09-06IB/ehca: Construct MAD redirect replies from request MADJoachim Fenkes1-6/+41
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>
2009-09-06IB/ehca: Make port autodetect mode the defaultAlexander Schmidt1-4/+4
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>
2009-06-23IB/ehca: Bump version numberAlexander Schmidt1-1/+1
Increment version number for DMEM toleration. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-23IB/ehca: Ensure that guid_entry index is not negativeRoel Kluin1-1/+1
This prevents the memcpy() of a guid_entries element using a negative index. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-23IB/ehca: Tolerate dynamic memory operations before driver loadHannes Hering3-17/+522
Implement toleration of dynamic memory operations and 16 GB gigantic pages, where "toleration" means that the driver can cope with dynamic memory operations that happen before the driver is loaded. While the ehca driver is loaded, dynamic memory operations are still prohibited by returning NOTIFY_BAD from the memory notifier. On module load the driver walks through available system memory, checks for available memory ranges and then registers the kernel internal memory region accordingly. The translation of address ranges is implemented via a 3-level busmap. Signed-off-by: Hannes Hering <hering2@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-06-16infiniband: ehca: remove driver_data direct access of struct deviceGreg Kroah-Hartman1-4/+4
In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. Cc: Sean Hefty <sean.hefty@intel.com> Cc: Roland Dreier <rolandd@cisco.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: general@lists.openfabrics.org Cc: Christoph Raisch <raisch@de.ibm.com> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15Merge branches 'cxgb3', 'ehca', 'misc', 'mlx4', 'mthca' and 'nes' into for-linusRoland Dreier9-102/+89
2009-06-04IB/ehca: Remove superfluous bitmasks from QP control blockJoachim Fenkes2-41/+5
All the fields in the control block are nicely right-aligned, so no masking is necessary. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-05-14infiniband: Remove void castsJack Stone1-5/+4
Remove uneeded casts of void *. Signed-off-by: Jack Stone <jwjstone@fastmail.fm> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-05-14IB/ehca: Increment version numberStefan Roscher1-1/+1
Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-05-14IB/ehca: Remove unnecessary memory operations for userspace queue pairsStefan Roscher5-50/+65
The queue map for flush completion circumvention is only used for kernel space queue pairs. This patch skips the allocation of the queue maps in case the QP is created for userspace. In addition, this patch does not iomap the galpas for kernel usage if the queue pair is only used in userspace. These changes will improve the performance of creation of userspace queue pairs. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-05-14IB/ehca: Fall back to vmalloc() for big allocationsStefan Roscher1-4/+13
In case of large queue pairs there is the possibillity of allocation failures due to memory fragmentation when using kmalloc(). To ensure the memory is allocated even if kmalloc() can not find chunks which are big enough, we fall back to allocating the memory with vmalloc(). Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-05-14IB/ehca: Replace vmalloc() with kmalloc() for queue allocationAnton Blanchard1-3/+3
To improve performance of driver resource allocation, replace vmalloc() calls with kmalloc(). Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-18IB: Remove __constant_{endian} usesHarvey Harrison1-4/+4
The base versions handle constant folding just fine, use them directly. The replacements are OK in the include/ files as they are not exported to userspace so we don't need the __ prefixed versions. This patch does not affect code generation at all. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-17IB/ehca: Use consistent types for ehca_plpar_hcall9()Stephen Rothwell1-13/+13
ehca_plpar_hcall9() takes an unsigned long array, so make all callers pass that in. This fixes warnings introduced by commit fe333321 ("powerpc: Change u64/s64 to a long long integer type"), which changed u64 from unsigned long to unsigned long long. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-17IB/ehca: Fix printk format warnings from u64 type changeStephen Rothwell12-130/+130
Commit fe333321 ("powerpc: Change u64/s64 to a long long integer type") changed u64 from unsigned long to unsigned long long, which means that printk formats for printing u64 values should use "ll" instead of "l" to avoid warnings. Fix all the places affected by this in ehca. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2009-01-13Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
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/iser: Add dependency on INFINIBAND_ADDR_TRANS IPoIB: Do not join broadcast group if interface is brought down RDMA/nes: Fix for NIPQUAD removal IPoIB: Fix loss of connectivity after bonding failover on both sides IB/mlx4: Don't register IB device for adapters with no IB ports mlx4_core: Fix warning from min() IB/ehca: spin_lock_irqsave() takes an unsigned long
2009-01-07IB/ehca: spin_lock_irqsave() takes an unsigned longStephen Rothwell1-1/+1
The flags argument to spin_lock_irqsave() should really be unsigned long. This will also help prevent some warnings when we change u64 to unsigned long long. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-30cpumask: use new cpumask API in drivers/infiniband/hw/ehcaRusty Russell1-5/+5
Impact: cleanup We're moving from handing around cpumask_t's to handing around struct cpumask *'s. cpus_*, cpumask_t and cpu_*_map are deprecated: convert to cpumask_*, cpu_*_mask. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com>
2008-12-30cpumask: use for_each_online_cpu() in drivers/infiniband/hw/ehca/ehca_irq.cRusty Russell1-4/+3
Impact: cleanup In future, accessing cpu numbers beyond nr_cpu_ids (the runtime limit) will be undefined. We can avoid future problems by using for_each_online_cpu() here. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Tested-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Cc: Christoph Raisch <raisch@de.ibm.com>
2008-12-22IB/ehca: Remove redundant test of vpageJulia Lawall1-1/+1
vpage is checked not to be NULL just after it is initialized at the beginning of each loop iteration. A simplified version of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; expression E; position p1,p2; @@ if (x@p1 == NULL || ...) { ... when forall return ...; } ... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\) ( x@p2 == NULL | x@p2 != NULL ) // another path to the test that is not through p1? @s exists@ local idexpression r.x; position r.p1,r.p2; @@ ... when != x@p1 ( x@p2 == NULL | x@p2 != NULL ) @fix depends on !s@ position r.p1,r.p2; expression x,E; statement S1,S2; @@ ( - if ((x@p2 != NULL) || ...) S1 | - if ((x@p2 == NULL) && ...) S1 | - BUG_ON(x@p2 == NULL); ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-05IB/ehca: Replace modulus operations in flush error completion pathStefan Roscher3-13/+19
With the latest flush error completion patch we introduced modulus operation to calculate the next index within a qmap. Based on comments from other mailing lists we decided to optimize this operation by using an addition and an if-statement instead of modulus, even though this is on the error path. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-02IB/ehca: Fix locking for shca_list_lockJoachim Fenkes1-7/+10
shca_list_lock is taken from softirq context in ehca_poll_eqs, so we need to lock IRQ safe elsewhere. Found by lockdep. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-01IB/ehca: Fix problem with generated flush work completionsStefan Roscher3-28/+53
This fix enables ehca device driver to generate flush work completions even if the application doesn't request completions for all work requests. The current implementation of ehca will generate flush work completions for the wrong work requests if an application uses non signaled work completions. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-12-01IB/ehca: Change misleading error message on memory hotplugJoachim Fenkes1-2/+1
The error message printed when the eHCA driver prevents memory hotplug is misleading -- the user might think that hot-removing the lhca, hotplugging memory, then hot-adding the lhca again will work, but it actually doesn't. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-11-12IB/ehca: Remove reference to special QP in case of port activation failureStefan Roscher2-16/+33
If the initialization of a special QP (e.g. AQP1) fails due to a software timeout, we have to remove the reference to that special QP struct from the port struct to stop the driver from accessing the QP, since it will be/has been destroyed by the caller, eg in this case ib_mad. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-10-23IB/ehca: Reject dynamic memory add/remove when ehca adapter is presentStefan Roscher1-0/+48
Since the ehca device driver does not support dynamic memory add and remove operations, the driver must explicitly reject such requests in order to prevent unpredictable behaviors related to existing memory regions that cover all of memory being used by InfiniBand protocols in the kernel. The solution (for now at least) is to add a memory notifier to the ehca device driver and if a request for dynamic memory add or remove comes in, ehca will always reject it. The user can add or remove memory by hot-removing the ehca adapter, performing the memory operation, and then hot-adding the ehca adapter back. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-10-23IB/ehca: Fix reported max number of QPs and CQs in systems with >1 adapterStefan Roscher4-19/+26
Because ehca adapters can differ in the maximum number of QPs and CQs we have to save the maximum number of these ressources per adapter and not globally per ehca driver. This fix introduces 2 new members to the shca structure to store the maximum value for QPs and CQs per adapter. The module parameters are now used as initial values for those variables. If a user selects an invalid number of CQs or QPs we don't print an error any longer, instead we will inform the user with a warning and set the values to the respective maximum supported by the HW. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-10-11IB/ehca: Don't allow creating UC QP with SRQHoang-Nam Nguyen1-0/+6
This patch prevents a UC QP to be created attached to an SRQ, since current firmware does not support this feature. Signed-off-by: Michael Faath <micfaath@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-09-21IB/ehca: Generate flush status CQ entriesAlexander Schmidt5-43/+412
When a QP goes into error state, it is required that CQ entries with a flush error status are delivered to the application for any outstanding work requests. eHCA does not do this in hardware, so this patch adds software flush CQE generation to the ehca driver. Whenever a QP gets into error state, it is added to the QP error list of its respective CQ. If the error QP list of a CQ is not empty, poll_cq() generates flush CQEs before polling the actual CQ. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-08-23removed unused #include <linux/version.h>'sAdrian Bunk1-1/+0
This patch lets the files using linux/version.h match the files that #include it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-12IB/ehca: Discard double CQE for one WRAlexander Schmidt4-20/+78
Under rare circumstances, the ehca hardware might erroneously generate two CQEs for the same WQE, which is not compliant to the IB spec and will cause unpredictable errors like memory being freed twice. To avoid this problem, the driver needs to detect the second CQE and discard it. For this purpose, introduce an array holding as many elements as the SQ of the QP, called sq_map. Each sq_map entry stores a "reported" flag for one WQE in the SQ. When a work request is posted to the SQ, the respective "reported" flag is set to zero. After the arrival of a CQE, the flag is set to 1, which allows to detect the occurence of a second CQE. The mapping between WQE / CQE and the corresponding sq_map element is implemented by replacing the lowest 16 Bits of the wr_id with the index in the queue map. The original 16 Bits are stored in the sq_map entry and are restored when the CQE is passed to the application. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-08-12IB/ehca: Check idr_find() return valueAlexander Schmidt1-1/+3
The idr_find() function may fail when trying to get the QP that is associated with a CQE, e.g. when a QP has been destroyed between the generation of a CQE and the poll request for it. In consequence, the return value of idr_find() must be checked and the CQE must be discarded when the QP cannot be found. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-08-12IB/ehca: Repoll CQ on invalid opcodeAlexander Schmidt1-1/+1
When the ehca driver detects an invalid opcode in a CQE, it currently passes the CQE to the application and returns with success. This patch changes the CQE handling to discard CQEs with invalid opcodes and to continue reading the next CQE from the CQ. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-08-12IB/ehca: Rename goto label in ehca_poll_cq_one()Alexander Schmidt1-3/+3
Rename the "poll_cq_one_read_cqe" goto label to what it actually does, namely "repoll". Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-08-12IB/ehca: Update qp_state on cached modify_qp()Alexander Schmidt1-4/+10
Since the introduction of the port auto-detect mode for ehca, calls to modify_qp() may be cached in the device driver when the ports are not activated yet. When a modify_qp() call is cached, the qp state remains untouched until the port is activated, which will leave the qp in the reset state. In the reset state, however, it is not allowed to post SQ WQEs, which confuses applications like ib_mad. The solution for this problem is to immediately set the qp state as requested by modify_qp(), even when the call is cached. Signed-off-by: Alexander Schmidt <alexs@linux.vnet.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-08-04powerpc: Move include files to arch/powerpc/include/asmStephen Rothwell1-1/+1
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-07-24Merge branch 'for-linus' of ↵Linus Torvalds5-1/+11
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: MAINTAINERS: Remove Glenn Streiff from NetEffect entry mlx4_core: Improve error message when not enough UAR pages are available IB/mlx4: Add support for memory management extensions and local DMA L_Key IB/mthca: Keep free count for MTT buddy allocator mlx4_core: Keep free count for MTT buddy allocator mlx4_code: Add missing FW status return code IB/mlx4: Rename struct mlx4_lso_seg to mlx4_wqe_lso_seg mlx4_core: Add module parameter to enable QoS support RDMA/iwcm: Remove IB_ACCESS_LOCAL_WRITE from remote QP attributes IPoIB: Include err code in trace message for ib_sa_path_rec_get() failures IB/sa_query: Check if sm_ah is NULL in ib_sa_remove_one() IB/ehca: Release mutex in error path of alloc_small_queue_page() IB/ehca: Use default value for Local CA ACK Delay if FW returns 0 IB/ehca: Filter PATH_MIG events if QP was never armed IB/iser: Add support for RDMA_CM_EVENT_ADDR_CHANGE event RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT event RDMA/cma: Add RDMA_CM_EVENT_ADDR_CHANGE event
2008-07-23IB/ehca: Release mutex in error path of alloc_small_queue_page()Julia Lawall1-0/+1
The pd->lock mutex is released on a successful return, so it should be released on an error return as well. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression l; @@ mutex_lock(l); ... when != mutex_unlock(l) when any when strict ( if (...) { ... when != mutex_unlock(l) + mutex_unlock(l); return ...; } | mutex_unlock(l); ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-23IB/ehca: Use default value for Local CA ACK Delay if FW returns 0Joachim Fenkes1-1/+3
Some firmware versions report a Local CA ACK Delay of 0. In that case, return a more sensible default value of 12 (-> 16 msec) instead. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-23IB/ehca: Filter PATH_MIG events if QP was never armedJoachim Fenkes3-0/+7
Certain firmware versions sometimes cause spurious PATH_MIG events to occur during QP creation. Filter these events by making sure PATH_MIG events are only handed down when they actually make sense (i.e. when the QP has been armed at least once). Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-16Merge branch 'linus' into cpus4096Ingo Molnar5-5/+30
Conflicts: arch/x86/xen/smp.c kernel/sched_rt.c net/iucv/iucv.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-15IB/ehca: Make device table externally visibleJoachim Fenkes1-0/+1
This gives ehca an autogenerated modalias and therefore enables automatic loading. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-15IB/ehca: In case of lost interrupts, trigger EOI to reenable interruptsStefan Roscher3-2/+18
During corner case testing, we noticed that some versions of ehca do not properly transition to interrupt done in special load situations. This can be resolved by periodically triggering EOI through H_EOI, if EQEs are pending. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-07-15IB/ehca: Reject receive work requests if QP is in RESET stateJoachim Fenkes1-2/+10
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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