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* Merge tag 'for-linus' of ↵Linus Torvalds2016-11-1726-353/+221
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rmda fixes from Doug Ledford. "First round of -rc fixes. Due to various issues, I've been away and couldn't send a pull request for about three weeks. There were a number of -rc patches that built up in the meantime (some where there already from the early -rc stages). Obviously, there were way too many to send now, so I tried to pare the list down to the more important patches for the -rc cycle. Most of the code has had plenty of soak time at the various vendor's testing setups, so I doubt there will be another -rc pull request this cycle. I also tried to limit the patches to those with smaller footprints, so even though a shortlog is longer than I would like, the actual diffstat is mostly very small with the exception of just three files that had more changes, and a couple files with pure removals. Summary: - Misc Intel hfi1 fixes - Misc Mellanox mlx4, mlx5, and rxe fixes - A couple cxgb4 fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (34 commits) iw_cxgb4: invalidate the mr when posting a read_w_inv wr iw_cxgb4: set *bad_wr for post_send/post_recv errors IB/rxe: Update qp state for user query IB/rxe: Clear queue buffer when modifying QP to reset IB/rxe: Fix handling of erroneous WR IB/rxe: Fix kernel panic in UDP tunnel with GRO and RX checksum IB/mlx4: Fix create CQ error flow IB/mlx4: Check gid_index return value IB/mlx5: Fix NULL pointer dereference on debug print IB/mlx5: Fix fatal error dispatching IB/mlx5: Resolve soft lock on massive reg MRs IB/mlx5: Use cache line size to select CQE stride IB/mlx5: Validate requested RQT size IB/mlx5: Fix memory leak in query device IB/core: Avoid unsigned int overflow in sg_alloc_table IB/core: Add missing check for addr_resolve callback return value IB/core: Set routable RoCE gid type for ipv4/ipv6 networks IB/cm: Mark stale CM id's whenever the mad agent was unregistered IB/uverbs: Fix leak of XRC target QPs IB/hfi1: Remove incorrect IS_ERR check ...
| * iw_cxgb4: invalidate the mr when posting a read_w_inv wrSteve Wise2016-11-164-23/+24
| | | | | | | | | | | | | | | | | | Also, rearrange things a bit to have a common c4iw_invalidate_mr() function used everywhere that we need to invalidate. Fixes: 49b53a93a64a ("iw_cxgb4: add fast-path for small REG_MR operations") Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * iw_cxgb4: set *bad_wr for post_send/post_recv errorsSteve Wise2016-11-161-0/+4
| | | | | | | | | | | | | | | | | | There are a few cases in c4iw_post_send() and c4iw_post_receive() where *bad_wr is not set when an error is returned. This can cause a crash if the application tries to use bad_wr. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * Merge branches 'hfi1' and 'mlx' into k.o/for-4.9-rcDoug Ledford2016-11-167-11/+33
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| | * IB/mlx4: Fix create CQ error flowMatan Barak2016-11-161-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, if ib_copy_to_udata fails, the CQ won't be deleted from the radix tree and the HW (HW2SW). Fixes: 225c7b1feef1 ('IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * IB/mlx4: Check gid_index return valueDaniel Jurgens2016-11-161-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check the returned GID index value and return an error if it is invalid. Fixes: 5070cd2239bd ('IB/mlx4: Replace mechanism for RoCE GID management') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * IB/mlx5: Fix NULL pointer dereference on debug printEli Cohen2016-11-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For XRC QP CQs may not exist. Check before attempting dereference. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * IB/mlx5: Fix fatal error dispatchingEli Cohen2016-11-161-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an internal error condition is detected, make sure to set the device inactive after dispatching the event so ULPs can get a notification of this event. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * IB/mlx5: Resolve soft lock on massive reg MRsMoshe Lazer2016-11-162-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When calling reg_mr of large MRs (e.g. 4GB) from multiple processes and MR caches can't supply the required amount of MRs the slow-path of MR allocation may be used. In this case we need to serialize the slow-path between the processes to avoid soft lock. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * IB/mlx5: Use cache line size to select CQE strideDaniel Jurgens2016-11-161-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When creating kernel CQs use 128B CQE stride if the cache line size is 128B, 64B otherwise. This prevents multiple CQEs from residing in a 128B cache line, which can cause retries when there are concurrent read and writes in one cache line. Tested with IPoIB on PPC64, saw ~5% throughput improvement. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * IB/mlx5: Validate requested RQT sizeMaor Gottlieb2016-11-161-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Validate that the requested size of RQT is supported by firmware. Fixes: c5f9092936fe ('IB/mlx5: Add Receive Work Queue Indirection table operations') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| | * IB/mlx5: Fix memory leak in query deviceMajd Dibbiny2016-11-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to free dev->port when we fail to enable RoCE or initialize node data. Fixes: 0837e86a7a34 ('IB/mlx5: Add per port counters') Signed-off-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Remove incorrect IS_ERR checkDennis Dalessandro2016-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove IS_ERR check from caching code as the function being called does not actually return error pointers. Fixes: f19bd643dbde: "IB/hfi1: Prevent NULL pointer deferences in caching code" Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Prevent hardware counter names from being cut offJianxin Xiong2016-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Increase the size of the buffer that is used to construct per-VL and per-SDMA counter names. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Fix ECN processing in prescan_rxqDasaratharaman Chandramouli2016-11-151-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When processing ECN via the prescan_rxq path, some fields in the packet structure are passed uninitialized. This can potentially cause NULL pointer exceptions during ECN handling. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Fix status error code for unsupported packetsJakub Pawlak2016-11-152-2/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set the status code BAD_L2 when unsupported type of packet is received and dropped. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Relocate rcvhdrcnt module parameter check.Krzysztof Blaszkowski2016-11-151-18/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Validate the rcvhdrcnt module parameter in a single function at module load time. This allows proper error reporting. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Krzysztof Blaszkowski <krzysztof.blaszkowski@intel.com> Signed-off-by: Tymoteusz Kielan <tymoteusz.kielan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Fix rnr_timer additionIra Weiny2016-11-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new s_rnr_timeout was not properly being set and the code was incorrectly setting a different timer. Found by code inspection. Cc: <stable@vger.kernel.org> # 4.7.x Fixes: 08279d5c9424 ("staging/rdma/hfi1: use new RNR timer") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Delete unused lockEaswar Hariharan2016-11-152-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | The lock is an unused vestige from qib. Remove it. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Clean up unused argumentEaswar Hariharan2016-11-153-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hfi1_pcie_ddinit takes the PCI device id as an argument but never uses it. Clean it up. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Remove leftover snoop referencesDennis Dalessandro2016-11-153-114/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | A few snoop related variables were missed in the snoop/capture removal to get out of staging. Go back and clean those up too. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Fix a potential memory leak in hfi1_create_ctxts()Jianxin Xiong2016-11-151-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the function hfi1_create_ctxts the array "dd->rcd" is allocated and then populated with allocated resources in a loop. Previously, if error happened during the loop, only resource allocated in the current iteration would be freed. The array itself would then be freed, leaving the resources that were allocated in previous iterations and referenced by the array elements in limbo. This patch makes sure all allocated resources are freed before freeing the array "dd->rcd". Also the resource allocation now takes account of the numa node the device is attached to. Reviewed-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Return ENODEV for unsupported PCI device ids.Krzysztof Blaszkowski2016-11-151-13/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up device type checking. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Krzysztof Blaszkowski <krzysztof.blaszkowski@intel.com> Signed-off-by: Tymoteusz Kielan <tymoteusz.kielan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Fix an Oops on pci device force removeTadeusz Struk2016-11-154-5/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes an Oops on device unbind, when the device is used by a PSM user process. PSM processes access device resources which are freed on device removal. Similar protection exists in uverbs in ib_core for Verbs clients, but PSM doesn't use ib_uverbs hence a separate protection is required for PSM clients. Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Fix integrity check flags default valuesJakub Pawlak2016-11-153-40/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prevent setting up integrity check flags when module is loaded with NO_INTEGRITY capability. Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | IB/hfi1: Remove redundant sysfs irq affinity entryTadeusz Struk2016-11-153-101/+0
| |/ | | | | | | | | | | | | | | | | | | | | | | The IRQ affinity entry is not needed after the irq notifier patch has been added to the hfi1 driver. The irq affinity settings for SDMA engine should be set using the standard /proc/irq/<N>/ interface. Reviewed-by: Jianxin Xiong <jianxin.xiong@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2016-10-293-2/+2
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: "Lots of fixes, mostly drivers as is usually the case. 1) Don't treat zero DMA address as invalid in vmxnet3, from Alexey Khoroshilov. 2) Fix element timeouts in netfilter's nft_dynset, from Anders K. Pedersen. 3) Don't put aead_req crypto struct on the stack in mac80211, from Ard Biesheuvel. 4) Several uninitialized variable warning fixes from Arnd Bergmann. 5) Fix memory leak in cxgb4, from Colin Ian King. 6) Fix bpf handling of VLAN header push/pop, from Daniel Borkmann. 7) Several VRF semantic fixes from David Ahern. 8) Set skb->protocol properly in ip6_tnl_xmit(), from Eli Cooper. 9) Socket needs to be locked in udp_disconnect(), from Eric Dumazet. 10) Div-by-zero on 32-bit fix in mlx4 driver, from Eugenia Emantayev. 11) Fix stale link state during failover in NCSCI driver, from Gavin Shan. 12) Fix netdev lower adjacency list traversal, from Ido Schimmel. 13) Propvide proper handle when emitting notifications of filter deletes, from Jamal Hadi Salim. 14) Memory leaks and big-endian issues in rtl8xxxu, from Jes Sorensen. 15) Fix DESYNC_FACTOR handling in ipv6, from Jiri Bohac. 16) Several routing offload fixes in mlxsw driver, from Jiri Pirko. 17) Fix broadcast sync problem in TIPC, from Jon Paul Maloy. 18) Validate chunk len before using it in SCTP, from Marcelo Ricardo Leitner. 19) Revert a netns locking change that causes regressions, from Paul Moore. 20) Add recursion limit to GRO handling, from Sabrina Dubroca. 21) GFP_KERNEL in irq context fix in ibmvnic, from Thomas Falcon. 22) Avoid accessing stale vxlan/geneve socket in data path, from Pravin Shelar" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (189 commits) geneve: avoid using stale geneve socket. vxlan: avoid using stale vxlan socket. qede: Fix out-of-bound fastpath memory access net: phy: dp83848: add dp83822 PHY support enic: fix rq disable tipc: fix broadcast link synchronization problem ibmvnic: Fix missing brackets in init_sub_crq_irqs ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context Revert "ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context" arch/powerpc: Update parameters for csum_tcpudp_magic & csum_tcpudp_nofold net/mlx4_en: Save slave ethtool stats command net/mlx4_en: Fix potential deadlock in port statistics flow net/mlx4: Fix firmware command timeout during interrupt test net/mlx4_core: Do not access comm channel if it has not yet been initialized net/mlx4_en: Fix panic during reboot net/mlx4_en: Process all completions in RX rings after port goes up net/mlx4_en: Resolve dividing by zero in 32-bit system net/mlx4_core: Change the default value of enable_qos net/mlx4_core: Avoid setting ports to auto when only one port type is supported net/mlx4_core: Fix the resource-type enum in res tracker to conform to FW spec ...
| * {net, ib}/mlx5: Make cache line size determination at runtime.Daniel Jurgens2016-10-292-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | ARM 64B cache line systems have L1_CACHE_BYTES set to 128. cache_line_size() will return the correct size. Fixes: cf50b5efa2fe('net/mlx5_core/ib: New device capabilities handling.') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'gup_flag-cleanups'Linus Torvalds2016-10-193-3/+7
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge the gup_flags cleanups from Lorenzo Stoakes: "This patch series adjusts functions in the get_user_pages* family such that desired FOLL_* flags are passed as an argument rather than implied by flags. The purpose of this change is to make the use of FOLL_FORCE explicit so it is easier to grep for and clearer to callers that this flag is being used. The use of FOLL_FORCE is an issue as it overrides missing VM_READ/VM_WRITE flags for the VMA whose pages we are reading from/writing to, which can result in surprising behaviour. The patch series came out of the discussion around commit 38e088546522 ("mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing"), which addressed a BUG_ON() being triggered when a page was faulted in with PROT_NONE set but having been overridden by FOLL_FORCE. do_numa_page() was run on the assumption the page _must_ be one marked for NUMA node migration as an actual PROT_NONE page would have been dealt with prior to this code path, however FOLL_FORCE introduced a situation where this assumption did not hold. See https://marc.info/?l=linux-mm&m=147585445805166 for the patch proposal" Additionally, there's a fix for an ancient bug related to FOLL_FORCE and FOLL_WRITE by me. [ This branch was rebased recently to add a few more acked-by's and reviewed-by's ] * gup_flag-cleanups: mm: replace access_process_vm() write parameter with gup_flags mm: replace access_remote_vm() write parameter with gup_flags mm: replace __access_remote_vm() write parameter with gup_flags mm: replace get_user_pages_remote() write/force parameters with gup_flags mm: replace get_user_pages() write/force parameters with gup_flags mm: replace get_vaddr_frames() write/force parameters with gup_flags mm: replace get_user_pages_locked() write/force parameters with gup_flags mm: replace get_user_pages_unlocked() write/force parameters with gup_flags mm: remove write/force parameters from __get_user_pages_unlocked() mm: remove write/force parameters from __get_user_pages_locked() mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
| * | mm: replace get_user_pages() write/force parameters with gup_flagsLorenzo Stoakes2016-10-193-3/+7
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | This removes the 'write' and 'force' from get_user_pages() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'for-linus' of ↵Linus Torvalds2016-10-1411-0/+6555
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma qedr RoCE driver from Doug Ledford: "Early on in the merge window I mentioned I had a backlog of new drivers waiting to be reviewed and that, in addition to the hns-roce driver, I wanted to get possible a couple more reviewed. I ended up only having the time to complete one of the additional drivers. During Dave Miller's pull request this go around, there were a series of 9 patches to the QLogic qed net driver that add basic support for a paired RoCE driver. That support is currently not functional because it is missing the matching RoCE driver in the RDMA subsystem. I managed to finish that review. However, because it goes against part of Dave's net pull, and a part that was accepted a day or two after the merge window opened, to apply cleanly it has to be applied to either the tip of Dave's net branch, or as I did in this case, I just applied it to your master after you had taken Dave's pull request." * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: qedr: Add events support and register IB device qedr: Add GSI support qedr: Add LL2 RoCE interface qedr: Add support for data path qedr: Add support for memory registeration verbs qedr: Add support for QP verbs qedr: Add support for PD,PKEY and CQ verbs qedr: Add support for user context verbs qedr: Add support for RoCE HW init qedr: Add RoCE driver framework
| * | qedr: Add events support and register IB deviceRam Amrani2016-10-143-2/+158
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add error handling support. Register ib device with ib stack. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add GSI supportRam Amrani2016-10-147-1/+706
| | | | | | | | | | | | | | | | | | | | | | | | Add support for GSI over light L2. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add LL2 RoCE interfaceRam Amrani2016-10-142-2/+34
| | | | | | | | | | | | | | | | | | | | | | | | Add light L2 interface for RoCE. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add support for data pathRam Amrani2016-10-145-1/+1614
| | | | | | | | | | | | | | | | | | | | | | | | Implement fastpath verbs like ib_send_post, ib_post_recv and ib_poll_cq. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add support for memory registeration verbsRam Amrani2016-10-144-1/+425
| | | | | | | | | | | | | | | | | | | | | | | | Add support for user, dma and memory regions registration. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add support for QP verbsRam Amrani2016-10-146-1/+1286
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for Queue Pair verbs which adds, deletes, modifies and queries Queue Pairs. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add support for PD,PKEY and CQ verbsRam Amrani2016-10-145-1/+758
| | | | | | | | | | | | | | | | | | | | | | | | Add support for protection domain and completion queue verbs. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add support for user context verbsRam Amrani2016-10-145-1/+569
| | | | | | | | | | | | | | | | | | | | | | | | Add support for ucontext, query port, add and del gid verbs. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add support for RoCE HW initRam Amrani2016-10-144-2/+691
| | | | | | | | | | | | | | | | | | | | | | | | | | | Allocate and setup RoCE resources, interrupts and completion queues. Adds device attributes. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * | qedr: Add RoCE driver frameworkRam Amrani2016-10-145-0/+326
| |/ | | | | | | | | | | | | | | | | | | Adds a skeletal implementation of the qed* RoCE driver - basically the ability to communicate with the qede driver and receive notifications from it regarding various init/exit events. Signed-off-by: Rajesh Borundia <rajesh.borundia@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | Merge tag 'for-linus-2' of ↵Linus Torvalds2016-10-1412-316/+385
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull more rdma updates from Doug Ledford: "This merge window was the first where Huawei had to try and coordinate their patches between their net driver and their new roce driver (similar to mlx4 and mlx5). They didn't do horribly, but there were some issues (and we knew that because they simply didn't know what to do in the beginning). As a result, I had a set of patches that depended on some patches that normally would have come to you via Dave's tree. Those patches have been on netdev@ for a while, so I got Dave to give me his approval to send them to you. As such, the other 29 patches I had behind them are also now ready to go. This catches the hns and hns-roce drivers up to current, and for future patches we are working with them to get them up to speed on how to do joint driver development so that they don't have these sorts of cross tree dependency issues again. BTW, Dave gave me permission to add his Acked-by: to the patches against the net tree, but I've had this branch through 0day (but not linux-next since it was off by itself) and I didn't want to rebase the series just to add Dave's ack for the 8 patches in the net area. Updates to the hns drivers: - Small patch set for hns net driver that the roce patches depend on - Various fixes to the hns-roce driver - Add connection manager support to the hns-roce driver" * tag 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (36 commits) IB/hns: Fix for removal of redundant code IB/hns: Delete the redundant lines in hns_roce_v1_m_qp() IB/hns: Fix the bug when platform_get_resource() exec fail IB/hns: Update the rq head when modify qp state IB/hns: Cq has not been freed IB/hns: Validate mtu when modified qp IB/hns: Some items of qpc need to take user param IB/hns: The Ack timeout need a lower limit value IB/hns: Return bad wr while post send failed IB/hns: Fix bug of memory leakage for registering user mr IB/hns: Modify the init of iboe lock IB/hns: Optimize code of aeq and ceq interrupt handle and fix the bug of qpn IB/hns: Delete the sqp_start from the structure hns_roce_caps IB/hns: Fix bug of clear hem IB/hns: Remove unused parameter named qp_type IB/hns: Simplify function of pd alloc and qp alloc IB/hns: Fix bug of using uninit refcount and free IB/hns: Remove parameters of resize cq IB/hns: Remove unused parameters in some functions IB/hns: Add node_guid definition to the bindings document ...
| * IB/hns: Fix for removal of redundant codeSalil2016-10-032-19/+2
| | | | | | | | | | | | | | | | | | | | | | This patch removes the redundant code lines present in the functions get_send_wqe() and get_recv_wqe(). This also fixes the error in calculating the SQ WQE. Signed-off-by: Lijun Ou <oulijun@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * IB/hns: Delete the redundant lines in hns_roce_v1_m_qp()Lijun Ou2016-10-031-14/+3
| | | | | | | | | | | | | | | | | | | | It doesn't need to assign for the filed of qp state in qpc separately when qp happen to migrate state which supported in RoCE engine v1. Signed-off-by: Lijun Ou <oulijun@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * IB/hns: Fix the bug when platform_get_resource() exec failLijun Ou2016-10-031-0/+4
| | | | | | | | | | | | | | | | | | | | This patch mainly fixes the bug with platform_get_resource(). It should return NULL when platform_get_resource() exec fail. Signed-off-by: Lijun Ou <oulijun@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * IB/hns: Update the rq head when modify qp stateLijun Ou2016-10-031-1/+2
| | | | | | | | | | | | | | | | | | | | The rq head in qpc was zero will miss the rq wqes which have be sent, so here we should take the real value. Signed-off-by: Lijun Ou <oulijun@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * IB/hns: Cq has not been freedLijun Ou2016-10-031-1/+4
| | | | | | | | | | | | | | | | | | | | | | Cq has not been freed when fail to ib_copy_to_udata, so need to free it. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Peter Chen <luck.chen@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * IB/hns: Validate mtu when modified qpLijun Ou2016-10-031-0/+15
| | | | | | | | | | | | | | | | | | | | The mtu should be validated when modify qp,so we check it. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Peter Chen <luck.chen@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * IB/hns: Some items of qpc need to take user paramLijun Ou2016-10-031-2/+4
| | | | | | | | | | | | | | | | | | | | | | Some items of qpc need to take user param when modified qp state. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Dongdong Huang(Donald) <hdd.huang@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * IB/hns: The Ack timeout need a lower limit valueLijun Ou2016-10-031-4/+13
| | | | | | | | | | | | | | | | | | | | | | The Ack timeout of qpc need a lower limit value,otherwise the read performance will be very lower. Signed-off-by: Lijun Ou <oulijun@huawei.com> Signed-off-by: Dongdong Huang(Donald) <hdd.huang@huawei.com> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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