- 24 Jan, 2017 8 commits
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Moni Shoua authored
When allocating a port number for binding to a rdma_id, assuming the allocation is not for a specific port, the rule is to allow only ports that were not in use before by any other rdma_id. This condition is too strong to achieve the goal of a unique 5 tuple rdma_id. Instead, we can compare current rdma_id with other rdma_id for difference in one of destination port, source address and destination address to allow port reuse. Signed-off-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Acked-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Moni Shoua authored
Print debug messages to the kernel log to add more information about RDMA_CM events that indicate an error. Signed-off-by:
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Zhu Yanjun authored
In the function ipoib_set_dev_features, the returned value is always 0. As such, it is not necessary to check the returned value. This is not a bug. It is a trivial problem. Reviewed-by:
Guanglei Li <guanglei.li@oracle.com> Signed-off-by:
Zhu Yanjun <yanjun.zhu@oracle.com> Reviewed-by:
Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in isert_warn message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
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Ganesh Goudar authored
Endpoints that are aborting can have already dereferenced the cm_id and set ep->com.cm_id to NULL. So guard against that in dump_ep() and dump_qp(). Also create a common function for setting up ip address pointers since the same logic is needed in several places. Reviewed-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by:
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Yuval Shaia authored
Print the invalid port number to ease troubleshooting. Signed-off-by:
Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
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Yuval Shaia authored
Remove the unused qp_type parameter from function's args Signed-off-by:
Adit Ranadive <aditr@vmware.com> Signed-off-by:
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Yuval Shaia authored
Signed-off-by:
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- 13 Jan, 2017 4 commits
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Jack Wang authored
Signed-off-by:
Jack Wang <jinpu.wang@profitbricks.com> Reviewed-by:
Michael Wang <yun.wang@profitbricks.com> Acked-by:
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Jack Wang authored
When we try to resolve a dest addr, if we don't give src addr, cma core will try to resolve to our source ib device automatically. The current logic only checks if a given port has the same subnet_prefix as our dest, which is not enough if we use default well known subnet_prefix on our active port, as it will be the same as the subnet_prefix on inactive ports and we might match against an inactive port by accident. To resolve this, we should also check if port is active before we resolve it as a suitable src address for a given dest. Signed-off-by:
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Jack Wang authored
Export function for rdma_cm, patch for rdma_cm to follow. Signed-off-by:
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Jack Wang authored
We need a port state cache in ib_core, later we will use in rdma_cm. Signed-off-by:
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- 12 Jan, 2017 18 commits
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Feras Daoud authored
Since ipoib_cm_tx_start function and ipoib_cm_tx_reap function belong to different work queues, they can run in parallel. In this case if ipoib_cm_tx_reap calls list_del and release the lock, ipoib_cm_tx_start may acquire it and call list_del_init on the already deleted object. Changing list_del to list_del_init in ipoib_cm_tx_reap fixes the problem. Fixes: 839fcaba ("IPoIB: Connected mode experimental support") Signed-off-by:
Feras Daoud <ferasda@mellanox.com> Signed-off-by:
Erez Shitrit <erezsh@mellanox.com> Reviewed-by:
Alex Vesker <valex@mellanox.com> Signed-off-by:
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Feras Daoud authored
In order to resolve a situation where a few process delete the same list element in sequence and cause panic, list_del is replaced with list_del_init. In this case if the first process that calls list_del releases the lock before acquiring it again, other processes who can acquire the lock will call list_del_init. Fixes: b63b70d8 ("IPoIB: Use a private hash table for path lookup") Signed-off-by:
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Feras Daoud authored
If a receive request has not been posted to the work queue, the incoming message is rejected and the peer will receive a receiver-not-ready (RNR) error. In IPoIB, IB_WC_RNR_RETRY_EXC_ERR error is part of the life cycle therefore ipoib_cm_handle_tx_wc function will print to debug instead of warnings. Signed-off-by:
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Feras Daoud authored
Add a detailed return code to dev_queue_xmit function when calling to requeue packet via __skb_dequeue. Signed-off-by:
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Feras Daoud authored
The ipoib_vlan_add function calls rtnl_unlock after free_netdev, rtnl_unlock not only releases the lock, but also calls netdev_run_todo. The latter function browses the net_todo_list array and completes the unregistration of all its net_device instances. If we call free_netdev before rtnl_unlock, then netdev_run_todo call over the freed device causes panic. To fix, move rtnl_unlock call before free_netdev call. Fixes: 9baa0b03 ("IB/ipoib: Add rtnl_link_ops support") Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
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Feras Daoud authored
When calling set_mode from sys/fs, the call flow locks the sys/fs lock first and then tries to lock rtnl_lock (when calling ipoib_set_mod). On the other hand, the rmmod call flow takes the rtnl_lock first (when calling unregister_netdev) and then tries to take the sys/fs lock. Deadlock a->b, b->a. The problem starts when ipoib_set_mod frees it's rtnl_lck and tries to get it after that. set_mod: [<ffffffff8104f2bd>] ? check_preempt_curr+0x6d/0x90 [<ffffffff814fee8e>] __mutex_lock_slowpath+0x13e/0x180 [<ffffffff81448655>] ? __rtnl_unlock+0x15/0x20 [<ffffffff814fed2b>] mutex_lock+0x2b/0x50 [<ffffffff81448675>] rtnl_lock+0x15/0x20 [<ffffffffa02ad807>] ipoib_set_mode+0x97/0x160 [ib_ipoib] [<ffffffffa02b5f5b>] set_mode+0x3b/0x80 [ib_ipoib] [<ffffffff8134b840>] dev_attr_store+0x20/0x30 [<ffffffff811f0fe5>] sysfs_write_file+0xe5/0x170 [<ffffffff8117b068>] vfs_write+0xb8/0x1a0 [<ffffffff8117ba81>] sys_write+0x51/0x90 [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b rmmod: [<ffffffff81279ffc>] ? put_dec+0x10c/0x110 [<ffffffff8127a2ee>] ? number+0x2ee/0x320 [<ffffffff814fe6a5>] schedule_timeout+0x215/0x2e0 [<ffffffff8127cc04>] ? vsnprintf+0x484/0x5f0 [<ffffffff8127b550>] ? string+0x40/0x100 [<ffffffff814fe323>] wait_for_common+0x123/0x180 [<ffffffff81060250>] ? default_wake_function+0x0/0x20 [<ffffffff8119661e>] ? ifind_fast+0x5e/0xb0 [<ffffffff814fe43d>] wait_for_completion+0x1d/0x20 [<ffffffff811f2e68>] sysfs_addrm_finish+0x228/0x270 [<ffffffff811f2fb3>] sysfs_remove_dir+0xa3/0xf0 [<ffffffff81273f66>] kobject_del+0x16/0x40 [<ffffffff8134cd14>] device_del+0x184/0x1e0 [<ffffffff8144e59b>] netdev_unregister_kobject+0xab/0xc0 [<ffffffff8143c05e>] rollback_registered+0xae/0x130 [<ffffffff8143c102>] unregister_netdevice+0x22/0x70 [<ffffffff8143c16e>] unregister_netdev+0x1e/0x30 [<ffffffffa02a91b0>] ipoib_remove_one+0xe0/0x120 [ib_ipoib] [<ffffffffa01ed95f>] ib_unregister_device+0x4f/0x100 [ib_core] [<ffffffffa021f5e1>] mlx4_ib_remove+0x41/0x180 [mlx4_ib] [<ffffffffa01ab771>] mlx4_remove_device+0x71/0x90 [mlx4_core] Fixes: 862096a8 ("IB/ipoib: Add more rtnl_link_ops callbacks") Cc: <stable@vger.kernel.org> # v3.6+ Cc: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: -
Feras Daoud authored
This patch fixes Deadlock while executing ipoib_vlan_delete. The function takes the vlan_rwsem semaphore and calls unregister_netdevice. The later function calls ipoib_mcast_stop_thread that cause workqueue flush. When the queue has one of the ipoib_ib_dev_flush_xxx events, a deadlock occur because these events also tries to catch the same vlan_rwsem semaphore. To fix, unregister_netdevice should be called after releasing the semaphore. Fixes: cbbe1efa ("IPoIB: Fix deadlock between ipoib_open() and child interface create") Signed-off-by:
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Feras Daoud authored
When changing the connection mode, the ipoib_set_mode function did not check if the previous connection mode equals to the new one. This commit adds the required check and return 0 if the new mode equals to the previous one. Fixes: 839fcaba ("IPoIB: Connected mode experimental support") Signed-off-by:
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Feras Daoud authored
In datagram mode, the IB UD (Unreliable Datagram) transport is used so the MTU of the interface is equal to the IB L2 MTU minus the IPoIB encapsulation header. Any request to change the MTU value above the maximum range will change the MTU to the max allowed, but will not show any warning message. An ipoib_warn is issued in such cases, letting the user know that even though the value is legal, it can't be currently applied. Signed-off-by:
Noa Osherovich <noaos@mellanox.com> Signed-off-by:
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ssh10 authored
Replace BUG() with BUG_ON() using coccinelle Signed-off-by:
Shyam Saini <mayhs11saini@gmail.com> Signed-off-by:
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ssh10 authored
Elsewhere the sin_family field holds a value with a name of the form AF_..., so it seems reasonable to do so here as well. Also the values of PF_INET and AF_INET are the same. The semantic patch that makes this change is as follows: //</smpl> @@ struct sockaddr_in sip; @@ ( sip.sin_family == - PF_INET + AF_INET | sip.sin_family != - PF_INET + AF_INET | sip.sin_family = - PF_INET + AF_INET ) //</smpl> Signed-off-by:
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Jason Gunthorpe authored
The RDMA core uses ib_pack() to convert from unpacked CPU structs to on-the-wire bitpacked structs. This process requires that 1 bit fields are declared as u8 in the unpacked struct, otherwise the packing process does not read the value properly and the packed result is wired to 0. Several places wrongly used int. Crucially this means the kernel has never, set reversible correctly in the path record request. It has always asked for irreversible paths even if the ULP requests otherwise. When the kernel is used with a SM that supports this feature, it completely breaks communication management if reversible paths are not properly requested. The only reason this ever worked is because opensm ignores the reversible bit. Cc: stable@vger.kernel.org Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by:
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Amrani, Ram authored
Simplify function and sub-function flow of QP creation and destruction. This also serves as a preparation for SRQ and iWARP support. Signed-off-by:
Ram Amrani <Ram.Amrani@cavium.com> Reviewed-by:
Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by:
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Geliang Tang authored
To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by:
Geliang Tang <geliangtang@gmail.com> Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Acked-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
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Cao jin authored
In AER recovery, pci_error_handlers.link_reset() is never called, drop it now. Signed-off-by:
Cao jin <caoj.fnst@cn.fujitsu.com> Signed-off-by:
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Cao jin authored
In AER recovery, pci_error_handlers.link_reset() is never called, drop it now. Signed-off-by:
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Kees Cook authored
Prepare to mark sensitive kernel structures for randomization by making sure they're using designated initializers. These were identified during allyesconfig builds of x86, arm, and arm64, with most initializer fixes extracted from grsecurity. Signed-off-by:
Kees Cook <keescook@chromium.org> Acked-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
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Kees Cook authored
Prepare to mark sensitive kernel structures for randomization by making sure they're using designated initializers. These were identified during allyesconfig builds of x86, arm, and arm64, with most initializer fixes extracted from grsecurity. Signed-off-by:
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- 10 Jan, 2017 10 commits
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Bart Van Assche authored
Additionally, make it easier to detect skb leaks by issuing a warning if a leak occurs. Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by:
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Bart Van Assche authored
Neither rxe->ifc_ops nor any of the function pointers in struct struct rxe_ifc_ops ever change. Hence remove the rxe->ifc_ops indirection mechanism. Signed-off-by:
Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by:
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Bart Van Assche authored
Signed-off-by:
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Bart Van Assche authored
Avoid that calling check_rkey() for mem->state == RXE_MEM_STATE_FREE triggers an MR reference leak. Signed-off-by:
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Bart Van Assche authored
Change do_complete() such that an error completion is not only generated if a QP is in the error state but also if a work request failed. Signed-off-by:
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Bart Van Assche authored
This change makes the code easier to read and avoids that code is duplicated. Signed-off-by:
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Bart Van Assche authored
Since index values equal to or above 'range' can trigger memory corruption, complain if index >= range. Signed-off-by:
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Bart Van Assche authored
It is strongly recommended to report kernel warnings once instead of every time a condition is hit. Hence change WARN_ON() into WARN_ON_ONCE() / BUILD_BUG_ON() as appropriate. Signed-off-by:
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Bart Van Assche authored
Change the argument type of these functions from void * into struct rxe_pool_entry *. Signed-off-by:
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Bart Van Assche authored
Let the compiler check the type of the arguments passed to SKB_TO_PKT() and PKT_TO_SKB(). Signed-off-by:
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