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* IB/uverbs: track multicast group membership for userspace QPsJack Morgenstein2005-11-303-23/+99
| | | | | | | | | | uverbs needs to track which multicast groups is each qp attached to, in order to properly detach when cleanup is performed on device file close. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: fix posting of send lists of length >= 255 on mem-free HCAsMichael S. Tsirkin2005-11-292-3/+31
| | | | | | | | On mem-free HCAs, when posting a long list of send requests, a doorbell must be rung every 255 requests. Add code to handle this. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: fix error handling in ipoib_openRoland Dreier2005-11-291-1/+3
| | | | | | | If ipoib_ib_dev_up() fails after ipoib_ib_dev_open() is called, then ipoib_ib_dev_stop() needs to be called to clean up. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: protect child list in ipoib_ib_dev_flushMichael S. Tsirkin2005-11-291-0/+4
| | | | | | | race condition: ipoib_ib_dev_flush is accessing child list without locks. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: don't zero members after we allocate with kzallocRoland Dreier2005-11-291-4/+0Star
| | | | | | | ipoib_mcast_alloc() uses kzalloc(), so there's no need to zero out members of the mcast struct after it's allocated. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: reinitialize mcast structs' completions for every queryMichael S. Tsirkin2005-11-291-2/+4
| | | | | | | | Make sure mcast->done is initialized to uncompleted value before we submit a new query, so that it's safe to wait on. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: always set path->query to NULL when query finishesRoland Dreier2005-11-291-2/+2
| | | | | | | Always set path->query to NULL when the SA path record query completes, rather than only when we don't have an address handle. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IPoIB: reinitialize path struct's completion for every queryRoland Dreier2005-11-291-1/+2
| | | | | | | | | | It's possible that IPoIB will issue multiple SA queries for the same path struct. Therefore the struct's completion needs to be initialized for each query rather than only once when the struct is allocated, or else we might not wait long enough for later queries to finish and free the path struct too soon. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/umad: fix RMPP handlingMichael S. Tsirkin2005-11-281-19/+22
| | | | | | | | | | | ib_umad_write in user_mad.c is looking at rmpp_hdr field in MAD before checking that the MAD actually has the RMPP header. So for a MAD without RMPP header it looks like we are actually checking a bit inside M_Key, or something. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: reset QP's last pointers when transitioning to reset stateMichael S. Tsirkin2005-11-281-0/+3
| | | | | | | | last pointer is not updated when QP is modified to reset state. This causes data corruption if WQEs are already posted on the queue. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] drivers/infiniband/core/mad.c: fix use-after-release caseAdrian Bunk2005-11-281-2/+2
| | | | | | | | The Coverity checker spotted this obvious use-after-release bug caused by a wrong order of the cleanups. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2005-11-184-26/+31
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
| * IB/umad: make sure write()s have sufficient dataRoland Dreier2005-11-181-1/+1
| | | | | | | | | | | | | | | | | | | | Make sure that userspace passes in enough data when sending a MAD. We always copy at least sizeof (struct ib_user_mad) + IB_MGMT_RMPP_HDR bytes from userspace, so anything less is definitely invalid. Also, if the length is less than this limit, it's possible for the second copy_from_user() to get a negative length and trigger a BUG(). Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mthca: Safer max_send_sge/max_recv_sge calculationMichael S. Tsirkin2005-11-181-4/+6
| | | | | | | | | | | | | | | | | | Calculation of QP capabilities still isn't exactly right in mthca: max_send_sge/max_recv_sge fields returned in create_qp can exceed the handware supported limits. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] mthca: don't disable RDMA writes if no responder resourcesRoland Dreier2005-11-151-15/+12Star
| | | | | | | | | | | | | | | | | | | | Responder resources are only required to handle RDMA reads and atomic operations, not RDMA writes. So the driver should allow RDMA writes even if responder resources are set to 0. This is especially important for the UC transport -- with the old code, it was impossible to enable RDMA writes for UC QPs. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] srp: don't post receive if no send buf availableRoland Dreier2005-11-151-6/+9
| | | | | | | | | | | | | | | | | | | | Have __srp_get_tx_iu() fail if the target port's request limit will not allow the initiator to post a send. This avoids continuing on and posting a receive, and then failing to post a corresponding send. If that happens, then the initiator will end up with an extra receive posted, and if this happens to much, the receive queue will overflow. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] srp: increase max_lunsRoland Dreier2005-11-112-0/+3
| | | | | | | | | | | | | | | | Increase SRP max_luns to 512 to match the kernel's default, since SRP storage targets can have lots of LUNs and the SRP initiator itself doesn't have any particular limit. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [PATCH] PCI: removed unneeded .owner field from struct pci_driverGreg Kroah-Hartman2005-11-111-1/+0Star
|/ | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'for-linus' of ↵Linus Torvalds2005-11-1018-158/+458
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
| * [IB] umad: further ib_unregister_mad_agent() deadlock fixesRoland Dreier2005-11-101-24/+63
| | | | | | | | | | | | | | | | | | The previous umad deadlock fix left ib_umad_kill_port() still vulnerable to deadlocking. This patch fixes that by downgrading our lock to a read lock when we might end up trying to reacquire the lock for reading. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] mthca: fix posting long lists of receive work requestsMichael S. Tsirkin2005-11-103-5/+39
| | | | | | | | | | | | | | | | | | In Tavor mode, when posting a long list of receive work requests, a doorbell must be rung every 256 requests. Add code to do this when required. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] mthca: fix wraparound handling in mthca_cq_clean()Roland Dreier2005-11-101-10/+6Star
| | | | | | | | | | | | | | | | Handle case where prod_index has wrapped around and become less than cq->cons_index by checking that their difference as a signed int is positive rather than comparing directly. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] mthca: fix posting of atomic operationsMichael S. Tsirkin2005-11-101-4/+4
| | | | | | | | | | | | | | | | The size of work requests for atomic operations was computed incorrectly in mthca: all sizeofs need to be divided by 16. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] uverbs: have kernel return QP capabilitiesJack Morgenstein2005-11-107-13/+92
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the computation of QP capabilities (max scatter/gather entries, max inline data, etc) into the kernel, and have the uverbs module return the values as part of the create QP response. This keeps precise knowledge of device limits in the low-level kernel driver. This requires an ABI bump, so while we're making changes, get rid of the max_sge parameter for the modify SRQ command -- it's not used and shouldn't be there. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] umad: get rid of unused mr arrayRoland Dreier2005-11-101-25/+4Star
| | | | | | | | | | | | | | Now that ib_umad uses the new MAD sending interface, it no longer needs its own L_Key. So just delete the array of MRs that it keeps. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] Have cq_resize() method take an int, not int*Roland Dreier2005-11-101-10/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | Change the struct ib_device.resize_cq() method to take a plain integer that holds the new CQ size, rather than a pointer to an integer that it uses to return the new size. This makes the interface match the exported ib_resize_cq() signature, and allows the low-level driver to update the CQ size with proper locking if necessary. No in-tree drivers are exporting this method yet. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] mthca: fix typo in catastrophic error pollingRoland Dreier2005-11-101-1/+1
| | | | | | | | | | | | | | Fix a typo in the rearming of the catastrophic error polling timer: we should rearm the timer as long as the stop flag is _not_ set. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IPoIB] no need to set skb->dev right before freeing skbRoland Dreier2005-11-101-13/+4Star
| | | | | | | | | | | | | | For cut-and-paste reasons, the IPoIB driver was setting skb->dev right before calling dev_kfree_skb_any(). Get rid of this. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] umad: avoid potential deadlock when unregistering MAD agentsRoland Dreier2005-11-101-12/+17
| | | | | | | | | | | | | | | | | | | | | | | | ib_unregister_mad_agent() completes all pending MAD sends and waits for the agent's send_handler routine to return. umad's send_handler() calls queue_packet(), which does down_read() on the port mutex to look up the agent ID. This means that the port mutex cannot be held for writing while calling ib_unregister_mad_agent(), or else it will deadlock. This patch fixes all the calls to ib_unregister_mad_agent() in the umad module to avoid this deadlock. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IPoIB] add path record information in debugfsRoland Dreier2005-11-105-49/+231
| | | | | | | | | | | | | | | | | | | | | | | | Add ibX_path files to debugfs that contain information about the IPoIB path cache. IPoIB ARP only gives GIDs, which the IPoIB driver must resolve to real IB paths through the ib_sa module. For debugging, when the ARP table looks OK but traffic isn't flowing, it's useful to be able to see if the resolution from GID to path worked. Also clean up the formatting of the existing _mcg debugfs files. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] umad: two small fixesMichael S. Tsirkin2005-11-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | Two small fixes for the umad module: - set kobject name for issm device properly - in ib_umad_add_one(), s is subtracted from the index i when initializing ports, so s should be subtracted from the index when freeing ports in the error path as well. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * [IB] mthca: report page size capabilityJack Morgenstein2005-11-053-0/+3
| | | | | | | | | | | | | | Report the device's real page size capability in mthca_query_device(). Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reasonOlaf Hering2005-11-091-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes almost all inclusions of linux/version.h. The 3 #defines are unused in most of the touched files. A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is unfortunatly in linux/version.h. There are also lots of #ifdef for long obsolete kernels, this was not touched. In a few places, the linux/version.h include was move to where the LINUX_VERSION_CODE was used. quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'` search pattern: /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] kfree cleanup: misc remaining driversJesper Juhl2005-11-071-4/+2Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the remaining misc drivers/ part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in misc files in drivers/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org> Acked-by: Roland Dreier <rolandd@cisco.com> Acked-by: Pierre Ossman <drzeus@drzeus.cx> Acked-by: Jean Delvare <khali@linux-fr.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Len Brown <len.brown@intel.com> Acked-by: "Antonino A. Daplas" <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fix remaining missing includesTim Schmielau2005-11-077-0/+16
|/ | | | | | | | | | Fix more include file problems that surfaced since I submitted the previous fix-missing-includes.patch. This should now allow not to include sched.h from module.h, which is done by a followup patch. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'srp' of ↵Linus Torvalds2005-11-056-0/+1865
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
| * IB: Add SCSI RDMA Protocol (SRP) initiatorRoland Dreier2005-11-026-0/+1865
| | | | | | | | | | | | | | Add an InfiniBand SCSI RDMA Protocol (SRP) initiator. This driver is used to talk talk to InfiniBand SRP targets (storage devices). Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2005-11-0524-118/+165
|\ \ | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
| * | [IB] mthca: check P_Key index in modify QPJack Morgenstein2005-11-031-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | Make sure that the P_Key index passed into mthca_modify_qp() is within the device's P_Key table. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IB] umad: fix hot remove of IB devicesRoland Dreier2005-11-031-16/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix hotplug of devices for ib_umad module: when a device goes away, kill off all MAD agents for open files associated with that device, and make sure that the device is not touched again after ib_umad returns from its remove_one function. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IB] mthca: fix format of FW versionRoland Dreier2005-11-032-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Mellanox has decided that the components of the firmware version are really meant to be displayed in decimal, e.g. 0x000400070190 is version 4.7.400. Change the format we use from "%x.%x.%x" to "%d.%d.%d" to match this convention. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IPoIB] don't compile debug code if debugging isn't enabledRoland Dreier2005-11-033-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | Don't build ipoib_mcast_iter_ functions if CONFIG_INFINIBAND_IPOIB_DEBUG is not enabled -- their only callers will not be built either. Also move the prototype for ipoib_open() to ipoib.h to fix a sparse warning. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IPoIB] remove unneeded initializations to 0Roland Dreier2005-11-021-9/+2Star
| | | | | | | | | | | | | | | | | | | | | Shrink our source and .text a little by removing a few assignments of NULL and 0 to memory that is already cleared as part of the allocation. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IB] kzalloc() conversionsRoland Dreier2005-11-0211-62/+27Star
| | | | | | | | | | | | | | | | | | | | | Replace kmalloc()+memset(,0,) with kzalloc(), for a net savings of 35 source lines and about 500 bytes of text. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IPoIB] cleanups: fix comment, remove useless variablesRoland Dreier2005-10-312-9/+7Star
| | | | | | | | | | | | | | | | | | | | | | | | Minor cleanups: fix a misleading comment, and get rid of attr_mask variables that are only used to hold constants (just use the constants directly). Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IB] mthca: Avoid SRQ free WQE list corruptionRoland Dreier2005-10-311-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | Fix wqe_to_link() to use a structure field that we know is definitely always unused for receive work requests, so that it really avoids the free list corruption bug that the comment claims it does. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IB] uverbs: Avoid NULL pointer deref on CQ async eventRoland Dreier2005-10-313-6/+5Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | Userspace CQs that have no completion event channel attached end up with their cq_context set to NULL. However, asynchronous events like "CQ overrun" can still occur on such CQs, so add a uverbs_file member to struct ib_ucq_object that we can follow to deliver these events. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IPoIB] use spin_trylock_irqsave()Roland Dreier2005-10-291-4/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | Use spin_trylock_irqsave() in ipoib_start_xmit() instead of reinventing it out of local_irq_save(), spin_trylock() and local_irq_restore(). Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | [IB] mthca: report asynchronous CQ eventsMichael S. Tsirkin2005-10-293-3/+36
| |/ | | | | | | | | | | | | Implement reporting asynchronous CQ events in Mellanox HCA driver. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | [PATCH] fix missing includesTim Schmielau2005-10-319-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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