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path: root/drivers/infiniband/hw/ehca/ehca_qp.c (follow)
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* IB/ehca: Generate flush status CQ entriesAlexander Schmidt2008-09-211-15/+210
| | | | | | | | | | | | | | 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>
* IB/ehca: Discard double CQE for one WRAlexander Schmidt2008-08-121-9/+25
| | | | | | | | | | | | | | | | | | | | | | | 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>
* IB/ehca: Update qp_state on cached modify_qp()Alexander Schmidt2008-08-121-4/+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>
* IB/ehca: Filter PATH_MIG events if QP was never armedJoachim Fenkes2008-07-221-0/+2
| | | | | | | | | | 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>
* IB/ehca: Wait for async events to finish before destroying QPStefan Roscher2008-05-071-0/+5
| | | | | | | | This is necessary because, in a multicore environment, a race between uverbs async handler and destroy QP could occur. Signed-off-by: Stefan Roscher <stefan.roscher at de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Allocate event queue size depending on max number of CQs and QPsStefan Roscher2008-04-291-2/+24
| | | | | | | | | | | | | | If a lot of QPs fall into Error state at once and the EQ of the respective HCA is too small, it might overrun, causing the eHCA driver to stop processing completion events and calling the application's completion handlers, effectively causing traffic to stop. Fix this by limiting available QPs and CQs to a customizable max count, and determining EQ size based on these counts and a worst-case assumption. Signed-off-by: Stefan Roscher <stefan.roscher@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Move high-volume debug output to higher debug levelsJoachim Fenkes2008-04-231-6/+6
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Prevent posting of SQ WQEs if QP not in RTSJoachim Fenkes2008-04-231-0/+3
| | | | | | | ...as required by IB Spec, C10-29. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Add creation flags to struct ib_qp_init_attrEli Cohen2008-04-171-0/+3
| | | | | | | | | | | | | | Add a create_flags member to struct ib_qp_init_attr that will allow a kernel verbs consumer to create a pass special flags when creating a QP. Add a flag value for telling low-level drivers that a QP will be used for IPoIB UD LSO. The create_flags member will also be useful for XRC and ehca low-latency QP support. Since no create_flags handling is implemented yet, add code to all low-level drivers to return -EINVAL if create_flags is non-zero. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Remove tgid checkingHoang-Nam Nguyen2008-04-171-48/+0
| | | | | | | | | | | | | | Pavel Emelyanov <xemul@openvz.org> mentioned in <http://lkml.org/lkml/2008/3/17/131> that the task_struct->tgid field is about to become deprecated, so the uses in the ehca driver need to be fixed up. However, all the uses in ehca are for some object ownership checking that is not really needed, and anyway is implementing a policy that should be in common code rather than a low-level driver. So just remove all the checks. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Prevent RDMA-related connection failures on some eHCA2 hardwareJoachim Fenkes2008-01-251-4/+10
| | | | | | | | | | | | | | Some HW revisions of eHCA2 may cause an RC connection to break if they received RDMA Reads over that connection before. This can be prevented by assuring that, after the first RDMA Read, the QP receives a new RDMA Read every few million link packets. Include code into the driver that inserts an empty (size 0) RDMA Read into the message stream every now and then if the consumer doesn't post them frequently enough. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Add "port connection autodetect mode"Hoang-Nam Nguyen2008-01-251-5/+154
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enhances ehca with a capability to "autodetect" the ports being connected physically. In order to utilize that function the module option nr_ports must be set to -1 (default is 2 - two ports). This feature is experimental and will made the default later. More detail: If the user connects only one port to the switch, current code requires 1) port one to be connected and 2) module option nr_ports=1 to be given. If autodetect is enabled, ehca will not wait at creation of the GSI QP for the respective port to become active. Since firmware does not accept modify_qp() while the port is down at initialization, we need to cache all calls to modify_qp() for the SMI/GSI QP and just return a good return code. When a port is activated and we get a PORT_ACTIVE event, we replay the cached modify-qp() parms and re-trigger any posted recv WRs. Only then do we forward the PORT_ACTIVE event to registered clients. The result of this autodetect patch is that all ports will be accessible by the users. Depending on their respective cabling only those ports that are connected properly will become operable. If a user tries to modify a regular QP of a non-connected port, modify_qp() will fail. Furthermore, ibv_devinfo should show the port state accordingly. Note that this patch primarily improves the loading behaviour of ehca. If the cable is removed while the driver is operating and plugged in again, firmware will handle that properly by sending an appropriate async event. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Remove CQ-QP-link before destroying QP in error path of create_qp()Hoang-Nam Nguyen2008-01-251-1/+4
| | | | | Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* drivers/infiniband: Add missing "space"Joe Perches2008-01-251-3/+3
| | | | | | | Add missing spaces in the middle of format strings. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Return correct number of SGEs for SRQJoachim Fenkes2007-12-121-2/+2
| | | | | | | | | Firmware would round up the number of SGEs to four, because the WQE structure holds four SGEs. For SRQ, only three are supported, so return a fixed value instead. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix static rate regressionJoachim Fenkes2007-11-241-2/+2
| | | | | | | Wrong choice of port number caused modify_qp() to fail -- fixed. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix static rate calculationJoachim Fenkes2007-11-141-17/+12
| | | | | | | | | | | The IPD (inter-packet delay) formula was a little off and assumed a fixed physical link rate; fix the formula and query the actual physical link rate, now that we can get it. Also, refactor the calculation into a common function ehca_calc_ipd() and use that instead of duplicating code. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Supply QP token for SRQ base QPsJoachim Fenkes2007-10-181-1/+3
| | | | | | | | Because hardware reports the SRQ token in RWQEs of SRQ base QPs, supply the base QP token as SRQ token, so we can properly find the SRQ base QP. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Return srq_attr->max_sge in ehca_query_srq()Joachim Fenkes2007-10-101-0/+1
| | | | | | | Totally forgot this. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix mem leak of firmware ctrlblock in ehca_create_srq()Hoang-Nam Nguyen2007-10-101-0/+2
| | | | | Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Path migration supportJoachim Fenkes2007-10-101-24/+66
| | | | | | | Fix some modify_qp() issues related to path migration. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Add check for max #SGE to create_qp()Joachim Fenkes2007-10-101-1/+13
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Print return codes as signed decimal integersJoachim Fenkes2007-10-101-21/+21
| | | | | | | ...because -12 is easier to read than FFFFFFF4. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Use remap_4k_pfn() to map firmware contexts to user spaceHoang-Nam Nguyen2007-10-101-0/+2
| | | | | | | | | | | | | Use Paul's new remap_4k_pfn() function to map our 4K firmware contexts into user space on 64K-page machines without exposing neighboring firmware contexts. Return the context's offset within a 64K page to user space so it can determine the proper virtual address. For details about remap_4k_pfn(), see commit 721151d0 or http://patchwork.ozlabs.org/linuxppc/patch?id=10281 Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Support more than 4k QPs for userspace and kernelspaceStefan Roscher2007-10-101-2/+7
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Small QP userspace supportStefan Roscher2007-10-101-4/+3
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Make output clearer by removing some debug messagesAnton Blanchard2007-10-101-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | ehca spits out a lot of debugging information. I had to look closely to see the "Port 1 is not active" message within all the debug: eHCA Infiniband Device Driver (Rel.: SVNEHCA_0022) eHCA scaling code enabled ehca D.001.DQDXYCB-P1-C9: PU0006 EHCA_ERR:ehca_define_sqp Port 1 is not active. ehca D.001.DQDXYCB-P1-C9: PU0006 EHCA_ERR:ehca_create_qp ehca_define_sqp() failed rc=ffffffffffffffff ib_mad: Couldn't create ib_mad QP1 ib_mad: Couldn't open ehca0 port 1 ehca D.001.DQDXYCB-P1-C9: PU0006 EHCA_ERR:ehca_alloc_fmr unsupported fmr_attr->page_shift=9 ehca D.001.DQDXYCB-P1-C9: PU0006 EHCA_ERR:ehca_alloc_fmr rc=ffffffffffffffea pd=c000000b4b5b2420 mr_access_flags=7 fmr_attr=c0000005afd37394 fmr_create failed for FMR 0 Remove a few debug statements so that things are clearer: eHCA Infiniband Device Driver (Rel.: SVNEHCA_0022) eHCA scaling code enabled ehca D.001.DQDXYCB-P1-C9: PU0006 EHCA_ERR:ehca_define_sqp Port 1 is not active. ib_mad: Couldn't create ib_mad QP1 ib_mad: Couldn't open ehca0 port 1 ehca D.001.DQDXYCB-P1-C9: PU0006 EHCA_ERR:ehca_alloc_fmr unsupported fmr_attr->page_shift=9 fmr_create failed for FMR 0 Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix Small QP regressionsStefan Roscher2007-08-311-4/+6
| | | | | | | | The new Small QP code had a few bugs that would also make it trigger for non-Small QPs. Fix them. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Support small QP queuesStefan Roscher2007-07-211-64/+97
| | | | | | | | | | | eHCA2 supports QP queues that can be as small as 512 bytes. This greatly reduces memory overhead for consumers that use lots of QPs with small queues (e.g. RDMA-only QPs). Apart from dealing with firmware, this code needs to manage bite-sized chunks of kernel pages, making sure that no kernel page is shared between different protection domains. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
* IB/ehca: Make internal_create/destroy_qp() staticJoachim Fenkes2007-07-211-8/+9
| | | | | | | They're only used in ehca_qp.c, so make them static to that file. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mm: Remove slab destructors from kmem_cache_create().Paul Mundt2007-07-201-1/+1
| | | | | | | | | | | | | | Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* IB/ehca: Fix warnings issued by checkpatch.plHoang-Nam Nguyen2007-07-181-19/+20
| | | | | | | | Run the existing ehca code through checkpatch.pl and clean up the worst of the coding style violations. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Change idr spinlocks into rwlocksJoachim Fenkes2007-07-101-6/+6
| | | | | | | | This eliminates lock contention among IRQs as well as the need to disable IRQs around idr_find, because there are no IRQ writers. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Lock renaming, static initializersJoachim Fenkes2007-07-101-3/+3
| | | | | | | | | | | - Rename all spinlock flags to "flags", matching the vast majority of kernel code. - Move hcall_lock into the only file it's used in. - Replaced spin_lock_init() and friends with static initializers for global variables. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Report RDMA atomic attributes in query_qp()Hoang-Nam Nguyen2007-07-101-0/+3
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Set SEND_GRH flag for all non-LL UD QPs on eHCA2Stefan Roscher2007-07-101-0/+11
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Support UD low-latency QPsStefan Roscher2007-07-101-27/+57
| | | | | Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: add Shared Receive Queue supportJoachim Fenkes2007-07-101-77/+374
| | | | | | | | Support SRQs on eHCA2. Since an SRQ is a QP for eHCA2, a lot of code (structures, create, destroy, post_recv) can be shared between QP and SRQ. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: QP code restructuring in preparation for SRQJoachim Fenkes2007-07-101-140/+114
| | | | | | | | | | | | | | - Replace init_qp_queues() by a shorter init_qp_queue(), eliminating duplicate code. - hipz_h_alloc_resource_qp() doesn't need a pointer to struct ehca_qp any longer. All input and output data is transferred through the parms parameter. - Change the interface to also support SRQ. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Fix AQP0/1 QP numberHoang-Nam Nguyen2007-05-141-2/+3
| | | | | | | | AQP0/1 should report qp_num={0|1} and the actual QP# should be stored in struct ehca_qp, not the other way round. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Correctly set GRH mask bit in ehca_modify_qp()Joachim Fenkes2007-05-141-4/+8
| | | | | | | | | | The driver needs to always supply the "GRH present" flag to the hypervisor, whether it's true or false. Not supplying it (i.e. not setting the corresponding mask bit) amounts to a "perhaps", which we don't want. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] Transform kmem_cache_alloc()+memset(0) -> kmem_cache_zalloc().Robert P. J. Day2007-02-111-2/+1
| | | | | | | | | | | | | | | | | | | | | | Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the corresponding "kmem_cache_zalloc()" call. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Roland McGrath <roland@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Acked-by: Joel Becker <Joel.Becker@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* IB/ehca: Remove use of do_mmap()Hoang-Nam Nguyen2007-02-041-64/+14
| | | | | | | | | | | | This patch removes do_mmap() from ehca: - Call remap_pfn_range() for hardware register block - Use vm_insert_page() to register memory allocated for completion queues and queue pairs - The actual mmap() call/trigger is now controlled by user space, ie. libehca Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Use proper GFP_ flags for get_zeroed_page()Hoang-Nam Nguyen2007-01-091-2/+2
| | | | | | | | | | | | | | | | Here is a patch for ehca to use proper flag, ie. GFP_ATOMIC resp. GFP_KERNEL, when calling get_zeroed_page() to prevent "Bug: scheduling while atomic...". This error does not cause a kernel panic but makes ipoib un-usable afterwards. It is reproducible on 2.6.20-rc4 if one does ifconfig down during a flood ping test. I have not observed this error in earlier releases incl. 2.6.20-rc1. This error occurs when a qp event/irq is received and ehca event handler allocates a control block/page to obtain HCA error data block. Use of GFP_ATOMIC when in interrupt context prevents this issue. Signed-off-by Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] slab: remove SLAB_KERNELChristoph Lameter2006-12-071-1/+1
| | | | | | | | SLAB_KERNEL is an alias of GFP_KERNEL. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IB/ehca: Use WQE offset instead of WQE addr for pending work reqsHoang-Nam Nguyen2006-11-301-13/+9
| | | | | | | | | | | | This is a patch for ehca to fix a bug in prepare_sqe_to_rts(), which used WQE address to iterate pending work requests. This might cause an access violation since the queue pages can not be assumed to follow each other consecutively. Thus, this patch introduces a few queue functions to determine WQE offset based on its address and uses WQE offset to iterate the pending work requests. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Assure 4K alignment for firmware control blocksHoang-Nam Nguyen2006-11-091-5/+5
| | | | | | | | | | | | | Assure 4K alignment for firmware control blocks in 64K page mode, because kzalloc()'s result address might not be 4K aligned if 64K pages are enabled. Thus, we introduce wrappers called ehca_{alloc,free}_fw_ctrlblock(), which use a slab cache for objects with 4K length and 4K alignment in order to alloc/free firmware control blocks in 64K page mode. In 4K page mode those wrappers just are defines of get_zeroed_page() and free_page(). Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/uverbs: Pass userspace data to modify_srq and modify_qp methodsRalph Campbell2006-09-231-1/+2
| | | | | | | | | | Pass a struct ib_udata to the low-level driver's ->modify_srq() and ->modify_qp() methods, so that it can get to the device-specific data passed in by the userspace driver. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/ehca: Add driver for IBM eHCA InfiniBand adaptersHeiko J Schick2006-09-231-0/+1506
Add a driver for IBM GX bus InfiniBand adapters, which are usable with some pSeries/System p systems. Signed-off-by: Heiko J Schick <schickhj.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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