- 16 Nov, 2017 1 commit
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Jason Gunthorpe authored
As was discussed in September and October, add Jason along with Doug to have a team maintainership model for the RDMA subystem. Mellanox Technologies will be funding Jason's independent work on the maintainership. Signed-off-by:
Jason Gunthorpe <jgg@mellanox.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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- 13 Nov, 2017 39 commits
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Leon Romanovsky authored
Current ib_modify_cq() is used to set CQ moderation parameters. This patch renames ib_modify_cq() to be rdma_set_cq_moderation(), because the kernel version of RDMA API doesn't need to follow already exposed to user's API pattern (create_XXX/modify_XXX/query_XXX/destroy_XXX) and better to have more accurate name which describes the actual usage. Signed-off-by:
Leon Romanovsky <leonro@mellanox.com> Signed-off-by:
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Yonatan Cohen authored
query_device can now obtain the maximum values for cq_max_count and cq_period, needed for cq moderation. Signed-off-by:
Yonatan Cohen <yonatanc@mellanox.com> Reviewed-by:
Majd Dibbiny <majd@mellanox.com> Signed-off-by:
Leon Romanovsky <leon@kernel.org> Signed-off-by:
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Yonatan Cohen authored
query_device can now obtain the maximum values for cq_max_count and cq_period, needed for cq moderation. Signed-off-by:
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Yonatan Cohen authored
The query_device function can now obtain the maximum values for cq_max_count and cq_period, needed for CQ moderation. cq_max_count is a 16 bits number that determines the number of CQEs to accumulate before generating an event. cq_period is a 16 bits number that determines the timeout in micro seconds from the last event generated, upon which a new event will be generated even if cq_max_count was not reached. Signed-off-by:
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Yonatan Cohen authored
Exposed mlx5_ib_modify_cq to be called from ib device verb list. Signed-off-by:
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Yonatan Cohen authored
Exposed mlx4_ib_modify_cq to be called from ib device verb list. Signed-off-by:
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Yonatan Cohen authored
Uverbs support in modify_cq for CQ moderation only. Gives ability to change cq_max_count and cq_period. CQ moderation enhance performance by moderating the number of CQEs needed to create an event instead of application having to suffer from event per-CQE. To achieve CQ moderation the application needs to set cq_max_count and cq_period. cq_max_count - defines the number of CQEs needed to create an event. cq_period - defines the timeout (micro seconds) between last event and a new one that will occur even if cq_max_count was not satisfied Signed-off-by: -
Steve Wise authored
__flush_qp() has a race condition where during the flush operation, the qp lock is released allowing another thread to possibly post a WR, which corrupts the queue state, possibly causing crashes. The lock was released to preserve the cq/qp locking hierarchy of cq first, then qp. However releasing the qp lock is not necessary; both RQ and SQ CQ locks can be acquired first, followed by the qp lock, and then the RQ and SQ flushing can be done w/o unlocking. Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
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Steve Wise authored
The ULPs completion handler should only be called if the CQ is armed for notification. Signed-off-by:
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Bharat Potnuri authored
Locking sequence of iw_cxgb4 and RoCE drivers in ib_register_device() is slightly different and this leads to possible circular dependency locking warning when both the devices are brought up. Here is the locking sequence upto ib_register_device(): iw_cxgb4: rtnl_mutex(net stack) --> uld_mutex --> device_mutex RoCE drivers: device_mutex --> rtnl_mutex Here is the possibility of cross locking: CPU #0 (iw_cxgb4) CPU #1 (RoCE drivers) -> on interface up cxgb4_up() executed with rtnl_mutex held -> hold uld_mutex and try registering ib device -> In ib_register_device() hold device_mutex -> hold device mutex in ib_register_device -> try acquiring rtnl_mutex in ib_enum_roce_netdev() Current patch schedules the ib_register_device() functionality of iw_cxgb4 to a workqueue to prevent the possible cross-locking. Also rename the labels in c4iw_reister_device(). Signed-off-by:
Potnuri Bharat Teja <bharat@chelsio.com> Reviewed-by:
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Devesh Sharma authored
In a real RoCE v2 network it is possible to have two Sections of network have same IP hence same gid. However those may have different vlans. During connection resolution it is important to report the actual vlan on which the MAD packet was received instead of relying on other means to resolve vlan-id. ib_find_gid_index should not be used to resolve the vlan-id using sgid of the local system where the packet was received. Our device has the capability to report the actual VLAN-ID in the GSI qp completions. Since we have the capability our driver should move away from resolving the vlan-id with the help of SGID at the destination port. Signed-off-by:
Devesh Sharma <devesh.sharma@broadcom.com> Reported-by:
Parav Pandit <parav@mellanox.com> Signed-off-by:
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Daniel Jurgens authored
When modify QP is called on a shared QP update the security context for the real QP. When security is subsequently enforced the shared QP handles will be checked as well. Without this change shared QP handles get added to the port/pkey lists, which is a bug, because not all shared QP handles will be checked for access. Also the shared QP security context wouldn't get removed from the port/pkey lists causing access to free memory and list corruption when they are destroyed. Cc: stable@vger.kernel.org Fixes: d291f1a6 ("IB/core: Enforce PKey security on QPs") Signed-off-by:
Daniel Jurgens <danielj@mellanox.com> Reviewed-by:
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Gustavo A. R. Silva authored
Check on return value and goto label mbx_err are unnecessary. Addresses-Coverity-ID: 1268780 Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Reviewed-by:
Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by:
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Yuval Shaia authored
Function returns zero - make it void. While there make struct net_device const. Signed-off-by:
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Bryan Tan authored
Add the required functions needed to support SRQs. Currently, kernel clients are not supported. SRQs will only be available in userspace. Reviewed-by:
Adit Ranadive <aditr@vmware.com> Reviewed-by:
Aditya Sarwade <asarwade@vmware.com> Reviewed-by:
Jorgen Hansen <jhansen@vmware.com> Reviewed-by:
Nitish Bhat <bnitish@vmware.com> Signed-off-by:
Bryan Tan <bryantan@vmware.com> Reviewed-by:
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Arnd Bergmann authored
As Dan pointed out, the rework I did makes it harder for smatch and other static checkers to figure out what is going on with the uninitialized pointers. By open-coding the call in create_udata(), we make it more readable for both humans and tools. Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Fixes: 12f72772 ("IB/uverbs: clean up INIT_UDATA_BUF_OR_NULL usage") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
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Selvin Xavier authored
Synchronize poll_cq and req_notify_cq verbs using cq_lock, instead of the lower level qplib->hwq.lock. Signed-off-by:
Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by:
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Selvin Xavier authored
Destroy_qp shall wait for any outstanding CQ notification to be flushed out before proceeding with QP destroy. Flushing the WQ before destroying the QP. Signed-off-by:
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Selvin Xavier authored
Moves the driver QP state to error in case of response completion errors. Handles the scenarios which doesn't generate a terminal CQE. Signed-off-by:
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Somnath Kotur authored
The code determines if the next ring entry is valid before proceeding further to read the rest of the entry. The CPU can re-order and read the rest of the entry first, possibly reading a stale entry, if DMA of a new entry happens right after reading it. Signed-off-by:
Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by:
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Dennis Dalessandro authored
When the driver is loaded it sets the default CCTI value to be 0. When the FM starts and CCA is disabled the driver sets the max value to 65535 due the driver subtracting 1 from 0 and the fact that the CCTI value is a u16. Special case the subtraction to find the index for a 0 value. Reviewed-by:
Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
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Don Hiatt authored
Pass only the lower 16Bits of an Extended LIDs to rvt_cq_entry to avoid triggering a WARN_ON_ONCE during conversion there. These upper 16Bits are okay to drop as they are obtained elsewhere. Fixes: 62ede777 ("Add OPA extended LID support") Reviewed-by:
Ira Weiny <ira.weiny@intel.com> Signed-off-by:
Don Hiatt <don.hiatt@intel.com> Signed-off-by:
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Don Hiatt authored
When deciding to convert an OPA AH to IB we were incorrectly including the IB multicast range. At this layer, all Extended LIDs will be larger than IB_LID_PERMISSIVE. Change comparison accordingly. Fixes: d541e455 ("IB/core: Convert ah_attr from OPA to IB when copying to user") Reviewed-by:
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Jan Sokolowski authored
On host shutdown, driver sends 'SMA_Disabled' as a reason for link down. This is incorrect. Send 'reboot' as a linkdown reason. Signed-off-by:
Jan Sokolowski <jan.sokolowski@intel.com> Reviewed-by:
Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by:
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Grzegorz Morys authored
It is invalid to change Link state from Init to Armed if IsSmConfigurationStarted bit is not set in Attribute modifier for Set subnet management method in case of PortInfo and PortStateInfo attribute. Set response MAD status field bits accordingly to react correctly in such situations and avoid changing Link state. Reviewed-by:
Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by:
Grzegorz Morys <grzegorz.morys@intel.com> Signed-off-by:
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Niranjana Vishwanathapura authored
OPA VNIC does not use PIO contexts and instead only uses SDMA engines. Do not allocate PIO contexts for VNIC ports. Reviewed-by:
Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by:
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Jan Sokolowski authored
A for loop condition of data_iovs in user_sdma_free_request is unnecessarily repeated before the loop as an if check. Remove the if enveloping the loop. Reviewed-by:
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Mike Marciniszyn authored
The "2 * UINT_MAX" statement: if ((u64)(ts - cce->timestamp) > 2 * UINT_MAX) { is equivalent to: if ((u64)(ts - cce->timestamp) > UINT_MAX - 1) { This results in a premature timeout of the cong log entry. Fix by using unsigned 64 bit integers, removing casts, and using an algebraic equivalent test to avoid the "2 * UINT_MAX" issue. Also make use of kernel API to get nanoseconds instead of open coding. Reported-by: -
Kamenee Arumugam authored
Wrapper functions were used to call the same function mmu_notifier_mem_invalidate for 2 callbacks in mmu_notifier. The commit 7def96f0 ("IB/hfi1: update to new mmu_notifier semantic") removed the invalidate_page callback. Therefore, the wrapper function is no longer needed. Reviewed-by:
Alex Estrin <alex.estrin@intel.com> Signed-off-by:
Kamenee Arumugam <kamenee.arumugam@intel.com> Signed-off-by:
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Jakub Byczkowski authored
Timeout of 20 seconds is too long for active wait performed for 8051 command completion. It was required for scenarios when transition to polling was requested before offline.quiet state was reached. Currently wait for offline.quiet is properly implemented and timeout can be reduced to 1 second. Reviewed-by:
Dean Luick <dean.luick@intel.com> Reviewed-by:
Duane McCrory <duane.mccrory@intel.com> Signed-off-by:
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Jan Sokolowski authored
HFI's are hard-wired to send Device Info frames with MgmtAllowed bit set to 0. This means in B2B setups, MgmtAllowed would never be allowed, which prevents remote opa management tools from working properly. Assume MgmtAllowed if a neighbor is also an HFI. Fixes: 98b9ee20 ("IB/hfi1: Cache neighbor secure data after link up") Reviewed-by:
Sebastian Sanchez <sebastian.sanchez@intel.com> Reviewed-by:
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Bart Van Assche authored
The use_srq configfs attribute is created after it is read. Hence modify srpt_tpg_attrib_use_srq_store() such that this function switches dynamically between non-SRQ and SRQ mode. Reported-by:
Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by:
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Bart Van Assche authored
Introduce the helper function srpt_set_enabled(). Protect sport->enabled changes with sdev->mutex. Makes configfs writes into 'enabled' wait until all channel resources have been freed. Wait until channel release has finished during kernel module unload. Signed-off-by:
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Bart Van Assche authored
Except for changing a BUG_ON() call into a WARN_ON_ONCE() call, this patch does not change any functionality. Signed-off-by:
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Bart Van Assche authored
The only functional change in this patch is in the srpt_add_one() error path: if allocating the ring buffer for the SRQ fails, fall back to non-SRQ mode instead of disabling SRP target functionality. Signed-off-by:
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Mike Marciniszyn authored
IB and iWARP specs both spell out that posting a receive work request to a queue pair in the RESET state is an invalid operation and required to fail. Postpone posting receive work requests until after the transition to the INIT state. Fixes: commit dea26209 ("IB/srpt: Change default behavior from using SRQ to using RC") Signed-off-by:
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Steve Wise authored
iw_cxgb4 has many BUG_ON()s that were left over from various enhancemnets made over the years. Almost all of them should just be removed. Some, however indicate a ULP usage error and can be handled w/o bringing down the system. If the condition cannot happen with correctly implemented cxgb4 sw/fw, then remove the BUG_ON. If the condition indicates a misbehaving ULP (like CQ overflows), add proper recovery logic. Signed-off-by:
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Sriharsha Basavapatna authored
While adding a new gid, the driver currently does not return the context back to the stack. A subsequent del_gid() (e.g, when ip address is changed) doesn't find the right context in the driver and it ends up dropping that request. This results in the HW caching a stale gid entry and traffic fails because of that. Fix by returning the proper context in bnxt_re_add_gid(). Signed-off-by:
Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by:
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Sriharsha Basavapatna authored
In bnxt_qplib_process_qp_event(), for qp error events we look up the qp-handle and pass it for further processing. But we don't check if the handle is NULL. This could lead to a crash in the called functions when that qp-handle is dereferenced, if the qp is destroyed in the meantime. Fix this by checking for a valid qp-handle in that function. Signed-off-by:
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