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path: root/drivers/infiniband/sw
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2017-03-24IB/rxe: increment msn only when completing a requestDavid Marchand
According to C9-147, MSN should only be incremented when the last packet of a multi packet request has been received. "Logically, the requester associates a sequential Send Sequence Number (SSN) with each WQE posted to the send queue. The SSN bears a one- to-one relationship to the MSN returned by the responder in each re- sponse packet. Therefore, when the requester receives a response, it in- terprets the MSN as representing the SSN of the most recent request completed by the responder to determine which send WQE(s) can be completed." Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: David Marchand <david.marchand@6wind.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/rxe: Update documentation linkLeon Romanovsky
All Soft-RoCE (rxe) is handled now in rdma-core user space library, so the documentation. The patch below updates the documentation link to that new location. Reported-by: Josh Beavers <josh.beavers@gmail.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24IB/rxe: double free on errorDan Carpenter
"goto err;" has it's own kfree_skb() call so it's a double free. We only need to free on the "goto exit;" path. Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-03-24infiniband: Fix alignment of mmap cookies to support VIPT cachingJason Gunthorpe
When vmalloc_user is used to create memory that is supposed to be mmap'd to user space, it is necessary for the mmap cookie (eg the offset) to be aligned to SHMLBA. This creates a situation where all virtual mappings of the same physical page share the same virtual cache index and guarantees VIPT coherence. Otherwise the cache is non-coherent and the kernel will not see writes by userspace when reading the shared page (or vice-versa). Reported-by: Josh Beavers <josh.beavers@gmail.com> Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-27scripts/spelling.txt: add "therfore" pattern and fix typo instancesMasahiro Yamada
Fix typos and add the following to the scripts/spelling.txt: therfore||therefore Besides, tidy up comment blocks for 80-col wrapping. Link: http://lkml.kernel.org/r/1481573103-11329-31-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-25Merge tag 'for-next-dma_ops' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma DMA mapping updates from Doug Ledford: "Drop IB DMA mapping code and use core DMA code instead. Bart Van Assche noted that the ib DMA mapping code was significantly similar enough to the core DMA mapping code that with a few changes it was possible to remove the IB DMA mapping code entirely and switch the RDMA stack to use the core DMA mapping code. This resulted in a nice set of cleanups, but touched the entire tree and has been kept separate for that reason." * tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits) IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it IB/core: Remove ib_device.dma_device nvme-rdma: Switch from dma_device to dev.parent RDS: net: Switch from dma_device to dev.parent IB/srpt: Modify a debug statement IB/srp: Switch from dma_device to dev.parent IB/iser: Switch from dma_device to dev.parent IB/IPoIB: Switch from dma_device to dev.parent IB/rxe: Switch from dma_device to dev.parent IB/vmw_pvrdma: Switch from dma_device to dev.parent IB/usnic: Switch from dma_device to dev.parent IB/qib: Switch from dma_device to dev.parent IB/qedr: Switch from dma_device to dev.parent IB/ocrdma: Switch from dma_device to dev.parent IB/nes: Remove a superfluous assignment statement IB/mthca: Switch from dma_device to dev.parent IB/mlx5: Switch from dma_device to dev.parent IB/mlx4: Switch from dma_device to dev.parent IB/i40iw: Remove a superfluous assignment statement IB/hns: Switch from dma_device to dev.parent ...
2017-02-23Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull Mellanox rdma updates from Doug Ledford: "Mellanox specific updates for 4.11 merge window Because the Mellanox code required being based on a net-next tree, I keept it separate from the remainder of the RDMA stack submission that is based on 4.10-rc3. This branch contains: - Various mlx4 and mlx5 fixes and minor changes - Support for adding a tag match rule to flow specs - Support for cvlan offload operation for raw ethernet QPs - A change to the core IB code to recognize raw eth capabilities and enumerate them (touches non-Mellanox code) - Implicit On-Demand Paging memory registration support" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (40 commits) IB/mlx5: Fix configuration of port capabilities IB/mlx4: Take source GID by index from HW GID table IB/mlx5: Fix blue flame buffer size calculation IB/mlx4: Remove unused variable from function declaration IB: Query ports via the core instead of direct into the driver IB: Add protocol for USNIC IB/mlx4: Support raw packet protocol IB/mlx5: Support raw packet protocol IB/core: Add raw packet protocol IB/mlx5: Add implicit MR support IB/mlx5: Expose MR cache for mlx5_ib IB/mlx5: Add null_mkey access IB/umem: Indicate that process is being terminated IB/umem: Update on demand page (ODP) support IB/core: Add implicit MR flag IB/mlx5: Support creation of a WQ with scatter FCS offload IB/mlx5: Enable QP creation with cvlan offload IB/mlx5: Enable WQ creation and modification with cvlan offload IB/mlx5: Expose vlan offloads capabilities IB/uverbs: Enable QP creation with cvlan offload ...
2017-02-23Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "First set of updates for 4.11 kernel merge window - Add new Broadcom bnxt_re RoCE driver - rxe driver updates - ioctl cleanups - ETH_P_IBOE declaration cleanup - IPoIB changes - Add port state cache - Allow srpt driver to accept guids as port names in config - Update to hfi1 driver - Update to srp driver - Lots of misc minor changes all over" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (114 commits) RDMA/bnxt_re: fix for "bnxt_en: Update to firmware interface spec 1.7.0." rdma_cm: fail iwarp accepts w/o connection params IB/srp: Drain the send queue before destroying a QP IB/core: Add support for draining IB_POLL_DIRECT completion queues IB/srp: Improve an error path IB/srp: Make a diagnostic message more informative IB/srp: Document locking conventions IB/srp: Fix race conditions related to task management IB/srp: Avoid that duplicate responses trigger a kernel bug IB/SRP: Avoid using IB_MR_TYPE_SG_GAPS RDMA/qedr: Fix some error handling RDMA/bnxt_re: add DCB dependency IB/hns: include linux/module.h IB/vmw_pvrdma: Expose vendor error to ULPs vmw_pvrdma: switch to pci_alloc_irq_vectors IB/hfi1: use size_t for passing array length IB/ipoib: Remove redudant label IB/ipoib: remove the unnecessary memory free IB/mthca: switch to pci_alloc_irq_vectors IB/hfi1: Code reuse with memdup_copy ...
2017-02-19IB/hfi1, qib, rdmavt: Move AETH defines to rdma/ib_hdrs.hDon Hiatt
Rename RVT AETH defines and export in rdma/ib_hdrs.h Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1: Add rvt_rnr_tbl_to_usec functionDon Hiatt
Return usec from an index into ib_rvt_rnr_table. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1, rdmavt: Update copy_sge to use boolean argumentsBrian Welty
Convert copy_sge and related SGE state functions to use boolean. For determining if QP is in user mode, add helper function in rdmavt_qp.h. This is used to determine if QP needs the last byte ordering. While here, change rvt_pd.user to a boolean. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/rdmavt: Adding timer logic to rdmavtVenkata Sandeep Dhanalakota
To move common code across target to rdmavt for code reuse. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1, qib, rdmavt: Move AETH credit functions into rdmavtBrian Welty
Add rvt_compute_aeth() and rvt_get_credit() as shared functions in rdmavt, moved from hfi1/qib logic. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/hfi1, qib, rdmavt: Move two IB event functions into rdmavtBrian Welty
Add rvt_rc_error() and rvt_comm_est() as shared functions in rdmavt, moved from hfi1/qib logic. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/rdmavt: Use per-CPU reference count for MRsSebastian Sanchez
Having per-CPU reference count for each MR prevents cache-line bouncing across the system. Thus, it prevents bottlenecks. Use per-CPU reference counts per MR. The per-CPU reference count for FMRs is used in atomic mode to allow accurate testing of the busy state. Other MR types run in per-CPU mode MR until they're freed. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19IB/rxe: use setup_timer to simplify the codeWei Yongjun
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-19Merge branch 'k.o/for-4.10-rc' into HEADDoug Ledford
2017-02-14IB: Query ports via the core instead of direct into the driverOr Gerlitz
Change the drivers to call ib_query_port in their get port immutable handler instead of their own query port handler. Doing this required to set the core cap flags of this device before the ib_query_port call is made, since the IB core might need these caps to serve the port query. Drivers are ensured by the IB core that the port attributes passed to the port query verb implementation are zero, and hence we removed the zeroing from the drivers. This patch doesn't add any new functionality. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Acked-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2017-02-08IB/rxe: Fix mem_check_range integer overflowEyal Itkin
Update the range check to avoid integer-overflow in edge case. Resolves CVE 2016-8636. Signed-off-by: Eyal Itkin <eyal.itkin@gmail.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-08IB/rxe: Fix resid updateEyal Itkin
Update the response's resid field when larger than MTU, instead of only updating the local resid variable. Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Eyal Itkin <eyal.itkin@gmail.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-02-06net-next: treewide use is_vlan_dev() helper function.Parav Pandit
This patch makes use of is_vlan_dev() function instead of flag comparison which is exactly done by is_vlan_dev() helper function. Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Daniel Jurgens <danielj@mellanox.com> Acked-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Jon Maxwell <jmaxwell37@gmail.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24IB/rxe: Prevent from completer to operate on non valid QPYonatan Cohen
On UD QP completer tasklet is scheduled for each packet sent. If it is followed by a destroy_qp(), the kernel panic will happen as the completer tries to operate on a destroyed QP. Fixes: 8700e3e7c485 ("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> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/rxe: Fix rxe dev insertion to rxe_dev_listMaor Gottlieb
The first argument of list_add_tail is the new item and the second is the head of the list. Fix the code to pass arguments in the right order, otherwise not all the rxe devices will be removed during teardown. Fixes: 8700e3e7c4857 ('Soft RoCE driver') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating itBart Van Assche
Make the rxe and rdmavt drivers use dma_virt_ops. Update the comments that refer to the source files removed by this patch. Remove struct ib_dma_mapping_ops. Remove ib_device.dma_ops. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Andrew Boyer <andrew.boyer@dell.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Jonathan Toppins <jtoppins@redhat.com> Cc: Alex Estrin <alex.estrin@intel.com> Cc: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24IB/rxe: Switch from dma_device to dev.parentBart Van Assche
Prepare for removal of ib_device.dma_device. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Fix an skb leakBart Van Assche
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: Leon Romanovsky <leonro@mellanox.com> Cc: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Remove a pointless indirection layerBart Van Assche
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: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Fix reference leaks in memory key invalidation codeBart Van Assche
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Fix a MR reference leak in check_rkey()Bart Van Assche
Avoid that calling check_rkey() for mem->state == RXE_MEM_STATE_FREE triggers an MR reference leak. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Generate a completion for all failed work requestsBart Van Assche
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: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Introduce functions for queue drainingBart Van Assche
This change makes the code easier to read and avoids that code is duplicated. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Add a runtime check in alloc_index()Bart Van Assche
Since index values equal to or above 'range' can trigger memory corruption, complain if index >= range. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Issue warnings onceBart Van Assche
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: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Let the compiler check the type of the cleanup functionsBart Van Assche
Change the argument type of these functions from void * into struct rxe_pool_entry *. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Enable type checking on SKB_TO_PKT() and PKT_TO_SKB() argumentsBart Van Assche
Let the compiler check the type of the arguments passed to SKB_TO_PKT() and PKT_TO_SKB(). Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Remove superfluous castsBart Van Assche
Casting a pointer to 'void *' explicitly is not necessary in C code. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Remove an unused variable and an unused argumentBart Van Assche
The variable 'av' is not used so remove it. Since that change removes the last user of the 'wqe' argument, remove that argument too. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Remove an unused functionBart Van Assche
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Constify the pool nameBart Van Assche
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-10IB/rxe: Suppress sparse warningsBart Van Assche
Avoid that sparse complains about using 0 as a pointer, about missing function declarations and also avoid that sparse complains about endianness. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Andrew Boyer <andrew.boyer@dell.com> Cc: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-23Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "First round of -rc fixes for 4.10 kernel: - a series of qedr fixes - a series of rxe fixes - one i40iw fix - one cma fix - one cxgb4 fix" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/rxe: Don't check for null ptr in send() IB/rxe: Drop future atomic/read packets rather than retrying IB/rxe: Use BTH_PSN_MASK when ACKing duplicate sends qedr: Always notify the verb consumer of flushed CQEs qedr: clear the vendor error field in the work completion qedr: post_send/recv according to QP state qedr: ignore inline flag in read verbs qedr: modify QP state to error when destroying it qedr: return correct value on modify qp qedr: return error if destroy CQ failed qedr: configure the number of CQEs on CQ creation i40iw: Set 128B as the only supported RQ WQE size IB/cma: Fix a race condition in iboe_addr_get_sgid() IB/rxe: Fix a memory leak in rxe_qp_cleanup() iw_cxgb4: set correct FetchBurstMax for QPs
2016-12-22IB/rxe: Don't check for null ptr in send()Andrew Boyer
pkt->qp was already dereferenced earlier in the function. Fixes Smatch complaint: drivers/infiniband/sw/rxe/rxe_net.c:458 send() warn: variable dereferenced before check 'pkt->qp' (see line 441) Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-22IB/rxe: Drop future atomic/read packets rather than retryingAndrew Boyer
If the completer is in the middle of a large read operation, one lost packet can cause havoc. Going to COMPST_ERROR_RETRY will cause the requester to resend the request. After that, any packet from the first attempt still in the receive queue will be interpreted as an error, restarting the error/retry sequence. The transfer will quickly exhaust its retries. This behavior is very noticeable when doing 512KB reads on a QEMU system configured with 1500B MTU. Also, a resent request here will prompt the responder on the other side to immediately start resending, but the resent packets will get stuck in the already-loaded receive queue and will never be processed. Rather than erroring out every time an unexpected future packet arrives, just drop it. Eventually the retry timer will send a duplicate request; the completer will be able to make progress since the queue will start relatively empty. Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-22IB/rxe: Use BTH_PSN_MASK when ACKing duplicate sendsAndrew Boyer
Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-18IB/rxe: Fix a memory leak in rxe_qp_cleanup()Bart Van Assche
A socket is associated with every QP by the rxe driver but sock_release() is never called. Add a call to sock_release() in rxe_qp_cleanup(). Fixes: commit 8700e3e7c48A5 ("Add Soft RoCE driver") Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Moni Shoua <monis@mellanox.com> Cc: Kamal Heib <kamalh@mellanox.com> Cc: Amir Vadai <amirv@mellanox.com> Cc: Haggai Eran <haggaie@mellanox.com> Cc: <stable@vger.kernel.org> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-15rdma: fix buggy code that the compiler warns aboutLinus Torvalds
Get rid of this warning: drivers/infiniband/sw/rdmavt/cq.c: In function ‘rvt_cq_exit’: drivers/infiniband/sw/rdmavt/cq.c:542:2: warning: ‘worker’ may be used uninitialized in this function [-Wmaybe-uninitialized] kthread_destroy_worker(worker); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ by fixing the function to actually work. Fixes: 6efaf10f163d ("IB/rdmavt: Avoid queuing work into a destroyed cq kthread worker") Cc: Petr Mladek <pmladek@suse.com> Cc: Doug Ledford <dledford@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-15Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma updates from Doug Ledford: "This is the complete update for the rdma stack for this release cycle. Most of it is typical driver and core updates, but there is the entirely new VMWare pvrdma driver. You may have noticed that there were changes in DaveM's pull request to the bnxt Ethernet driver to support a RoCE RDMA driver. The bnxt_re driver was tentatively set to be pulled in this release cycle, but it simply wasn't ready in time and was dropped (a few review comments still to address, and some multi-arch build issues like prefetch() not working across all arches). Summary: - shared mlx5 updates with net stack (will drop out on merge if Dave's tree has already been merged) - driver updates: cxgb4, hfi1, hns-roce, i40iw, mlx4, mlx5, qedr, rxe - debug cleanups - new connection rejection helpers - SRP updates - various misc fixes - new paravirt driver from vmware" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (210 commits) IB: Add vmw_pvrdma driver IB/mlx4: fix improper return value IB/ocrdma: fix bad initialization infiniband: nes: return value of skb_linearize should be handled MAINTAINERS: Update Intel RDMA RNIC driver maintainers MAINTAINERS: Remove Mitesh Ahuja from emulex maintainers IB/core: fix unmap_sg argument qede: fix general protection fault may occur on probe IB/mthca: Replace pci_pool_alloc by pci_pool_zalloc mlx5, calc_sq_size(): Make a debug message more informative mlx5: Remove a set-but-not-used variable mlx5: Use { } instead of { 0 } to init struct IB/srp: Make writing the add_target sysfs attr interruptible IB/srp: Make mapping failures easier to debug IB/srp: Make login failures easier to debug IB/srp: Introduce a local variable in srp_add_one() IB/srp: Fix CONFIG_DYNAMIC_DEBUG=n build IB/multicast: Check ib_find_pkey() return value IPoIB: Avoid reading an uninitialized member variable IB/mad: Fix an array index check ...
2016-12-14Merge branches 'misc', 'qedr', 'reject-helpers', 'rxe' and 'srp' into merge-testDoug Ledford
2016-12-14Merge branch 'mlx' into merge-testDoug Ledford