kernel.git/drivers/infiniband/core/verbs.c, branch linux-3.7.y

Merge branches 'core', 'cxgb4', 'ipath', 'iser', 'lockdep', 'mlx4', 'nes', 'ocrdma', 'qib' and 'raw-qp' into for-linus

2012-05-21T16:00:47Z

IB/core: Add raw packet QP type

2012-05-08T18:18:09Z

IB_QPT_RAW_PACKET allows applications to build a complete packet, including L2 headers, when sending; on the receive side, the HW will not strip any headers. This QP type is designed for userspace direct access to Ethernet; for example by applications that do TCP/IP themselves. Only processes with the NET_RAW capability are allowed to create raw packet QPs (the name "raw packet QP" is supposed to suggest an analogy to AF_PACKET / SOL_RAW sockets). Signed-off-by: Or Gerlitz Reviewed-by: Sean Hefty Signed-off-by: Roland Dreier

IB/core: Use qp->usecnt to track multicast attach/detach

2012-05-08T18:16:54Z

Just as we don't allow PDs, CQs, etc. to be destroyed if there are QPs that are attached to them, don't let a QP be destroyed if there are multicast group(s) attached to it. Use the existing usecnt field of struct ib_qp which was added by commit 0e0ec7e ("RDMA/core: Export ib_open_qp() to share XRC TGT QPs") to track this. Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier

RDMA/core: Fix kernel panic by always initializing qp->usecnt

2012-01-27T17:20:10Z

We have just been investigating kernel panics related to cq->ibcq.event_handler() completion calls. The problem is that ib_destroy_qp() fails with -EBUSY. Further investigation revealed qp->usecnt is not initialized. This counter was introduced in linux-3.2 by commit 0e0ec7e0638e ("RDMA/core: Export ib_open_qp() to share XRC TGT QPs") but it only gets initialized for IB_QPT_XRC_TGT, but it is checked in ib_destroy_qp() for any QP type. Fix this by initializing qp->usecnt for every QP we create. Signed-off-by: Bernd Schubert Signed-off-by: Sven Breuner [ Initialize qp->usecnt in uverbs too. - Sean ] Signed-off-by: Sean Hefty Cc: Signed-off-by: Roland Dreier

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-07T03:44:47Z

* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include net: sch_generic remove redundant use of net: inet_timewait_sock doesnt need ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h

Merge branches 'amso1100', 'cma', 'cxgb3', 'cxgb4', 'fdr', 'ipath', 'ipoib', 'misc', 'mlx4', 'misc', 'nes', 'qib' and 'xrc' into for-next

2011-11-01T16:37:08Z

infiniband: add in export.h for files using EXPORT_SYMBOL/THIS_MODULE

2011-10-31T23:31:35Z

These were getting it implicitly via device.h --> module.h but we are going to stop that when we clean up the headers. Fix these in advance so the tree remains biscect-clean. Signed-off-by: Paul Gortmaker

RDMA/core: Export ib_open_qp() to share XRC TGT QPs

2011-10-13T16:49:51Z

XRC TGT QPs are shared resources among multiple processes. Since the creating process may exit, allow other processes which share the same XRC domain to open an existing QP. This allows us to transfer ownership of an XRC TGT QP to another process. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/uverbs: Export XRC domains to user space

2011-10-13T16:21:24Z

Allow user space to create XRC domains. Because XRCDs are expected to be shared among multiple processes, we use inodes to identify an XRCD. Based on patches by Jack Morgenstein Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier

RDMA/verbs: Cleanup XRC TGT QPs when destroying XRCD

2011-10-13T16:20:27Z

XRC TGT QPs are intended to be shared among multiple users and processes. Allow the destruction of an XRC TGT QP to be done explicitly through ib_destroy_qp() or when the XRCD is destroyed. To support destroying an XRC TGT QP, we need to track TGT QPs with the XRCD. When the XRCD is destroyed, all tracked XRC TGT QPs are also cleaned up. To avoid stale reference issues, if a user is holding a reference on a TGT QP, we increment a reference count on the QP. The user releases the reference by calling ib_release_qp. This releases any access to the QP from a user above verbs, but allows the QP to continue to exist until destroyed by the XRCD. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier