- 20 Jul, 2017 20 commits
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Selvin Xavier authored
This fix is added only to avoid system crash in some a specific scenario. When bnxt_re driver is loaded and if user tries to change interface mac address, delete GID fails because QP1 is still associated with existing MAC (default GID). If the above command fails GID tables are not modified in the h/w or driver, but the GID context memory is freed. Now, if the user changes the mac back to the original value, another add_gid comes to the driver where the driver reports that the GID is already present in its table and tries to access the context which was already freed. So, in this case, in order to avoid NULL pointer de-reference, this patch removes the context memory free if delete_gid fails and the same context memory is re-used in new add_gid. Memory cleanup will be taken care during driver unload, while deleting the GID table. Signed-off-by:
Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by:
Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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Somnath Kotur authored
Posting WQE size of 2 results in a WQE_FORMAT_ERROR thrown by the HW as it requires host to supply WQE Size with room for atleast one SGE so that the resulting WQE size be atleast 3. Signed-off-by:
Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by:
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Devesh Sharma authored
The driver must free the DPI during the dealloc_ucontext instead of freeing it during dealloc_pd. However, the DPI allocation scheme remains unchanged. Signed-off-by:
Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by:
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Dan Carpenter authored
"umem" is a valid pointer. We intended to print "*umem" or even just "err" instead. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Dan Carpenter authored
If either of these allocations fail then we return ERR_PTR(0). That's equivalent to NULL and results in a NULL pointer dereference in the caller. Fixes: fe2caefc ("RDMA/ocrdma: Add driver for Emulex OneConnect IBoE RDMA adapter") Signed-off-by:
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Dan Carpenter authored
We should preserve the original "status" error code instead of resetting it to zero. Returning ERR_PTR(0) is the same as NULL and results in a NULL dereference in the callers. I added a printk() on error instead. Fixes: 45e86b33 ("RDMA/ocrdma: Cache recv DB until QP moved to RTR") Signed-off-by:
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Dan Carpenter authored
We accidentally don't set the error code on some error paths. It means return ERR_PTR(0) which is NULL and results in a NULL dereference in the caller. Fixes: 13a23933 ("RDMA/cxgb3: Don't ignore insert_handle() failures") Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
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Dan Carpenter authored
If one of these kmalloc() calls fails then we return ERR_PTR(0) which is NULL. It results in a NULL dereference in the callers. Fixes: cfdda9d7 ("RDMA/cxgb4: Add driver for Chelsio T4 RNIC") Signed-off-by:
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Dan Carpenter authored
We accidentally forgot to set the error code if ib_copy_from_udata() fails. It means we return ERR_PTR(0) which is NULL and results in a NULL dereference in the callers. Fixes: d3749841 ("i40iw: add files for iwarp interface") Signed-off-by:
Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:
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Dan Carpenter authored
We accidentally don't see the error code on some of these error paths. It means we return ERR_PTR(0) which is NULL and it results in a NULL dereference in the caller. This bug dates to pre-git days. Signed-off-by:
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Dan Carpenter authored
bnxt_re_alloc_mw() doesn't return NULL, it returns error pointers. Fixes: 9152e0b7 ("RDMA/bnxt_re: HW workarounds for handling specific conditions") Signed-off-by:
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Tatyana Nikolova authored
If the physical buffer list entries (PBLEs) of a QP are freed up at i40iw_dereg_mr, they can be assigned to a newly created QP before the previous QP is destroyed. Fix this by freeing PBLEs only when the QP is destroyed. Signed-off-by:
Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by:
Faisal Latif <faisal.latif@intel.com> Signed-off-by:
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Shiraz Saleem authored
Control Queue Pair (CQP) request objects, which have not received a completion upon interface close, remain in memory. To fix this, identify and free all pending CQP request objects during destroy CQP OP. Signed-off-by:
Henry Orosco <henry.orosco@intel.com> Signed-off-by:
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Henry Orosco authored
To avoid infinite loop, in i40iw_ieq_handle_exception, update plist inside while loop. Signed-off-by:
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Henry Orosco authored
Add missing write memory barrier before writing the header containing valid bit to the WQE in i40iw_puda_send. Signed-off-by:
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Shiraz Saleem authored
Current flow leaves software QP structures in memory if Control Queue Pair (CQP) destroy QP OP fails. To fix this, free QP resources on fail of CQP destroy QP OP. Signed-off-by:
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Shiraz Saleem authored
On PCI function reset, cm_id reference is not released which causes an application hang, as it waits on the cm_id to be released on rdma_destroy. To fix this, call i40iw_cm_disconn during a PCI function reset to clean-up resources and release cm_id reference. Signed-off-by:
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Shiraz Saleem authored
Utilize iwdev->reset on a PCI function reset notification instead of passing in reset flag for resource clean-up. Signed-off-by:
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Mustafa Ismail authored
Control Queue Pair (CQP) OPs, in this case - Update SDs, cannot poll the Control Completion Queue (CCQ) after CCQ is destroyed. Instead, poll via registers. Signed-off-by:
Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by:
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Mustafa Ismail authored
The order for calling i40iw_destroy_pble_pool is incorrect. Also, add PBLE_CHUNK_MEM init state to track pble pool creation and destruction. Signed-off-by:
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- 18 Jul, 2017 19 commits
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Tadeusz Struk authored
Playing with IP-O-IB interface can trigger a warning message: "ib0: Failed to modify QP to ERROR state" to be logged. This happens when the QP is in IB_QPS_RESET state and the stack is trying to transition it to IB_QPS_ERR state in ipoib_ib_dev_stop(). According to the IB spec, Table 91 - "QP State Transition Properties" it looks like the transition from reset to error is valid: Transition: Any State to Error Required Attributes: None Optional Attributes: None allowed Actions: Queue processing is stopped. Work Requests pending or in process are completed in error, when possible. This patch allows the transition and quiets the message. Reviewed-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by:
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oulijun authored
This patch correct the comment style warnings caught by checkpatch.pl script. Signed-off-by:
Lijun Ou <oulijun@huawei.com> Signed-off-by:
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oulijun authored
When modified the MAC address used hns_roce_mac function, we release and create reserved qp again, It is not necessary to use spin_lock_bh and spin_unlock_bh in handle_en_event, Otherwise, it will occur a error. This patch mainly fixes it. Signed-off-by:
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oulijun authored
When opcode of work request is RDMA read and write, it should use rdma_wr to get remote_addr and rkey. This patch fixes it. Signed-off-by:
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oulijun authored
When destroyed rc qp, the hr_qp will be used after freed. This patch will fix it. Signed-off-by:
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oulijun authored
In hip06 SoC, RoCE driver creates 8 reserved loopback QPs to ensure zero wqe when free mr. However, if the enabled phy port number is less than 6, it will fail in polling cqe with 8 reserved loopback QPs. In order to solve this problem, the number of loopback Qps will be adjusted based on the number of enabled phy port. Signed-off-by:
Shaobo Xu <xushaobo2@huawei.com> Signed-off-by:
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yonatanc authored
The RXE coupled with dummy device causes to the kernel panic attached below. The panic happens when ib_register_device tries to set dma_mask by accessing a NULLed parent device. The RXE does not actually use DMA, so we can set the dma_mask to architecture value. [16240.199689] RIP: 0010:ib_register_device+0x468/0x5a0 [ib_core] [16240.205289] RSP: 0018:ffffc9000220fc10 EFLAGS: 00010246 [16240.209909] RAX: 0000000000000024 RBX: ffff880220d1a2a8 RCX: 0000000000000000 [16240.212244] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 [16240.214385] RBP: ffffc9000220fcb0 R08: 0000000000000000 R09: 000000000000023f [16240.254465] R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000 [16240.259467] R13: 0000000000000000 R14: 0000000000000000 R15: ffff880220d1a2a8 [16240.263314] FS: 00007fd8ecca0740(0000) GS:ffff8802364c0000(0000) knlGS:0000000000000000 [16240.267292] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [16240.273503] CR2: 0000000000000218 CR3: 00000002253ba000 CR4: 00000000000006e0 [16240.277066] Call Trace: [16240.281836] ? __kmalloc+0x26f/0x280 [16240.286596] rxe_register_device+0x297/0x300 [rdma_rxe] [16240.291377] rxe_add+0x535/0x5b0 [rdma_rxe] [16240.297586] rxe_net_add+0x3e/0xc0 [rdma_rxe] [16240.302375] rxe_param_set_add+0x65/0x144 [rdma_rxe] [16240.307769] param_attr_store+0x68/0xd0 [16240.311640] module_attr_store+0x1d/0x30 [16240.316421] sysfs_kf_write+0x3a/0x50 [16240.317802] kernfs_fop_write+0xff/0x180 [16240.322989] __vfs_write+0x37/0x140 [16240.328164] ? handle_mm_fault+0xce/0x240 [16240.333340] vfs_write+0xb2/0x1b0 [16240.335013] SyS_write+0x55/0xc0 [16240.340632] entry_SYSCALL_64_fastpath+0x1a/0xa9 Fixes: 8700e3e7 ("Soft RoCE driver") Signed-off-by:
Yonatan Cohen <yonatanc@mellanox.com> Reviewed-by:
Moni Shoua <monis@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by:
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Yonatan Cohen authored
In the time between rxe_send has finished and skb destructor called, the QP's ref count might be 0, leading to a possible QP destruction. This will lead to a kernel panic when the destructor dereferences the QP. The operation of incrementing QP ref count at rxe_send and decrementing from skb destructor will prevent this crash. BUG: unable to handle kernel NULL pointer dereference at 000000000000072c IP: [<ffffffffa05df765>] rxe_skb_tx_dtor+0x15/0x50 [rdma_rxe] PGD 0 [16240.211178] Oops: 0002 [#1] SMP CPU: 3 PID: 0 Comm: swapper/3 Tainted: G OE 4.9.0-mlnx #1 Hardware name: Red Hat KVM, BIOS Bochs 01/01/2011 task: ffff88042d6b1480 task.stack: ffffc90001904000 RIP: 0010:[<ffffffffa05df765>] [<ffffffffa05df765>] rxe_skb_tx_dtor+0x15/0x50 [rdma_rxe] RSP: 0018:ffff88043fcc3df0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff880429684700 RCX: ffff88042d248200 RDX: 00000000ffffffff RSI: 00000000fffffe01 RDI: ffff880429684700 RBP: ffff88043fcc3e00 R08: ffff88043fcda240 R09: 00000000ff2d1de6 R10: 0000000000000000 R11: 00000000f49cf6fe R12: ffff880429684700 R13: ffffffff81893f96 R14: ffffffff817d66f0 R15: ffff880427f74200 FS: 0000000000000000(0000) GS:ffff88043fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000072c CR3: 000000041d3df000 CR4: 00000000000006e0 Stack: ffffffff817b29cf ffff880429684700 ffff88043fcc3e18 ffffffff817b42c2 ffff880429684700 ffff88043fcc3e40 ffffffff817b4332 ffff880429684700 ffff880427f74238 ffff880427f74228 ffff88043fcc3e58 ffffffff81893f96 Call Trace: <IRQ> [16240.336345] [<ffffffff817b29cf>] ? skb_release_head_state+0x4f/0xb0 [<ffffffff817b42c2>] skb_release_all+0x12/0x30 [<ffffffff817b4332>] kfree_skb+0x32/0x90 [<ffffffff81893f96>] ndisc_error_report+0x36/0x40 [<ffffffff817d4de1>] neigh_invalidate+0x81/0xf0 [<ffffffff817d68f7>] neigh_timer_handler+0x207/0x2b0 [<ffffffff81109295>] call_timer_fn+0x35/0x120 [<ffffffff81109db7>] run_timer_softirq+0x1d7/0x460 [<ffffffff8106155e>] ? kvm_sched_clock_read+0x1e/0x30 [<ffffffff810366b9>] ? sched_clock+0x9/0x10 [<ffffffff810cfed2>] ? sched_clock_cpu+0x72/0xa0 [<ffffffff818dd537>] __do_softirq+0xd7/0x289 [<ffffffff810a6c95>] irq_exit+0xb5/0xc0 [<ffffffff818dd372>] smp_apic_timer_interrupt+0x42/0x50 [<ffffffff818dc682>] apic_timer_interrupt+0x82/0x90 <EOI> [16240.395776] [<ffffffff818da156>] ? native_safe_halt+0x6/0x10 [<ffffffff818d9e6e>] default_idle+0x1e/0xd0 [<ffffffff8103797f>] arch_cpu_idle+0xf/0x20 [<ffffffff818da2c5>] default_idle_call+0x35/0x40 [<ffffffff810e3eb5>] cpu_startup_entry+0x185/0x210 [<ffffffff81050433>] start_secondary+0x103/0x130 RIP [<ffffffffa05df765>] rxe_skb_tx_dtor+0x15/0x50 [rdma_rxe] Fixes: 8700e3e7 ("Soft RoCE driver") Signed-off-by:
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Erez Shitrit authored
The driver checks if the lower level driver supports get_stats, and if so calls it to get the updated statistics, otherwise takes from the current netdevice stats object. Signed-off-by:
Erez Shitrit <erezsh@mellanox.com> Reviewed-by:
Alex Vesker <valex@mellanox.com> Signed-off-by:
Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by:
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Majd Dibbiny authored
Currently the RoCE GID management uses the ib_wq to do add and delete new GIDs according to the netdev events. The ib_wq isn't an ordered workqueue and thus two work elements can be executed concurrently which will result in unexpected behavior and inconsistency of the GIDs cache content. Example: ifconfig eth1 11.11.11.11/16 up This command will invoke the following netdev events in the following order: 1. NETDEV_UP 2. NETDEV_DOWN 3. NETDEV_UP If (2) and (3) will be executed concurrently or in reverse order, instead of having a new GID with 11.11.11.11 IP, we will end up without any new GIDs. Signed-off-by:
Majd Dibbiny <majd@mellanox.com> Signed-off-by:
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Leon Romanovsky authored
The failure in creation of debugfs entries for mr_cache left entries, which were already created. It caused to mismatch and misguiding for the end users. The solution is to clean mr_cache debugfs root, so no leftovers will be in the system. In addition, let's document why the error is not needed to be forwarded to user in case of failure. Signed-off-by:
Matan Barak <matanb@mellanox.com> Signed-off-by:
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Leon Romanovsky authored
There are no users for IB_QP_CREATE_USE_GFP_NOIO flag, so let's remove it. Signed-off-by:
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Leon Romanovsky authored
The caller to the driver marks GFP_NOIO allocations with help of memalloc_noio-* calls now. This makes redundant to pass down to the driver gfp flags, which can be GFP_KERNEL only. The patch removes the gfp flags argument and updates all driver paths. Signed-off-by:
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Leon Romanovsky authored
The caller to the driver marks GFP_NOIO allocations with help of memalloc_noio-* calls now. This makes redundant to pass down to the driver gfp flags, which can be GFP_KERNEL only. The patch removes the gfp flags argument and updates all driver paths. Signed-off-by:
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Leon Romanovsky authored
Commit 21caf2fc ("mm: teach mm by current context info to not do I/O during memory allocation") added the memalloc_noio_(save|restore) functions to enable people to modify the MM behavior by disabling I/O during memory allocation. This was further extended in Fixes: 934f3072 ("mm: clear __GFP_FS when PF_MEMALLOC_NOIO is set"). memalloc_noio_* functions prevent allocation paths recursing back into the filesystem without explicitly changing the flags for every allocation site. However the IPoIB hasn't been keeping up with the changes and missed completely these memalloc_noio_* calls. This led to update of allocation site with special QP creation flag, see commit 09b93088 ("IB: Add a QP creation flag to use GFP_NOIO allocations"), while this flag is supported by small number of drivers in IB stack. Let's change it by updating to memalloc_noio_* calls and allow for every driver underneath enjoy NOIO allocations. Signed-off-by:
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Erez Shitrit authored
This patch checks if there is a driver below that needs to be updated on the new MTU and calls it accordingly. Signed-off-by:
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Leon Romanovsky authored
The msleep(1) may do not sleep 1 ms as expected and will sleep longer. The simple conversion from msleep to usleep_range between 1ms and 2ms can solve an issue. The full and comprehensive explanation can be found at [1] and [2]. [1] https://lkml.org/lkml/2007/8/3/250 [2] Documentation/timers/timers-howto.txt Signed-off-by:
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Parav Pandit authored
This patch makes use of IB core's ib_modify_qp_with_udata function that also resolves the DMAC and handles udata. Signed-off-by:
Parav Pandit <parav@mellanox.com> Reviewed-by:
Eli Cohen <eli@mellanox.com> Reviewed-by:
Daniel Jurgens <danielj@mellanox.com> Signed-off-by:
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Parav Pandit authored
This patch adds new function ib_modify_qp_with_udata so that uverbs layer can avoid handling L2 mac address at verbs layer and depend on the core layer to resolve the mac address consistently for all required QPs. Signed-off-by:
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- 17 Jul, 2017 1 commit
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Moni Shoua authored
When resolving an IP address that is on the host of the caller the result from querying the routing table is the loopback device. This is not a valid response, because it doesn't represent the RDMA device and the port. Therefore, callers need to check the resolved device and if it is a loopback device find an alternative way to resolve it. To avoid this we make sure that the response from rdma_resolve_ip() will not be the loopback device. While that, we fix an static checker warning about dereferencing an unintitialized pointer using the same solution as in commit abeffce9 ("net/mlx5e: Fix a -Wmaybe-uninitialized warning") as a reference. Signed-off-by:
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