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2021-08-25RDMA/hfi1: Convert to SPDX identifierCai Huoqing1-43/+0
use SPDX-License-Identifier instead of a verbose license text Link: https://lore.kernel.org/r/20210823042622.109-1-caihuoqing@baidu.com Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-03-22RDMA: Fix kernel-doc compilation warningsLeon Romanovsky1-6/+6
This patch fixes bunch of kernel-doc compilation warnings like below: drivers/infiniband/hw/i40iw/i40iw_cm.c:4372: warning: expecting prototype for i40iw_ifdown_notify(). Prototype was for i40iw_if_notify() instead Link: https://lore.kernel.org/r/20210314133908.291945-2-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-01-28RDMA/hw/hfi1/msix: Add description for 'name' and remove superfluous param 'idx'Lee Jones1-1/+1
Fixes the following W=1 kernel build warning(s): drivers/infiniband/hw/hfi1/msix.c:120: warning: Function parameter or member 'name' not described in 'msix_request_irq' drivers/infiniband/hw/hfi1/msix.c:120: warning: Excess function parameter 'idx' description in 'msix_request_irq' Link: https://lore.kernel.org/r/20210126124732.3320971-6-lee.jones@linaro.org Cc: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com> Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: linux-rdma@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-05-21IB/hfi1: Activate the dummy netdevGrzegorz Andrejczuk1-5/+7
As described in earlier patches, ipoib netdev will share receive contexts with existing VNIC netdev through a dummy netdev. The following changes are made to achieve that: - Set up netdev receive contexts after user contexts. A function is added to count the available netdev receive contexts. - Add functions to set/get receive map table free index. - Rename NUM_VNIC_MAP_ENTRIES as NUM_NETDEV_MAP_ENTRIES. - Let the dummy netdev own the receive contexts instead of VNIC. - Allocate the dummy netdev when the hfi1 device is added and free it when the device is removed. - Initialize AIP RSM rules when the IpoIb rxq is initialized and remove the rules when it is de-initialized. - Convert VNIC to use the dummy netdev. Link: https://lore.kernel.org/r/20200511160649.173205.4626.stgit@awfm-01.aw.intel.com Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-05-21IB/hfi1: Add interrupt handler functions for accelerated ipoibGrzegorz Andrejczuk1-2/+18
This patch adds the interrupt handler function, the NAPI poll function, and its associated helper functions for receiving accelerated ipoib packets. While we are here, fix the formats of two error printouts. Link: https://lore.kernel.org/r/20200511160637.173205.64890.stgit@awfm-01.aw.intel.com Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-05-21IB/hfi1: Rename num_vnic_contexts as num_netdev_contextsGrzegorz Andrejczuk1-2/+2
Rename num_vnic_contexts as num_ndetdev_contexts since VNIC and ipoib will share the same set of receive contexts. Link: https://lore.kernel.org/r/20200511160625.173205.53306.stgit@awfm-01.aw.intel.com Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-01-25IB/hfi1: Fix logical condition in msix_request_irqNathan Chancellor1-1/+1
Clang warns: drivers/infiniband/hw/hfi1/msix.c:136:22: warning: overlapping comparisons always evaluate to false [-Wtautological-overlap-compare] if (type < IRQ_SDMA && type >= IRQ_OTHER) ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ 1 warning generated. It is impossible for something to be less than 0 (IRQ_SDMA) and greater than or equal to 3 (IRQ_OTHER) at the same time. A logical OR should have been used to keep the same logic as before. Link: https://lore.kernel.org/r/20200116222658.5285-1-natechancellor@gmail.com Link: https://github.com/ClangBuiltLinux/linux/issues/841 Fixes: 13d2a8384bd9 ("IB/hfi1: Decouple IRQ name from type") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-01-10IB/hfi1: Decouple IRQ name from typeGrzegorz Andrejczuk1-48/+58
IRQ name was connected to IRQ type, this is not sufficient and it would be better to use name as argument to msix_request_irq instead of assigning it to variables when function is called. Index argument was required to generate name and now it can be removed. To generate name correctly helpers function were added and updated. Link: https://lore.kernel.org/r/20200106134216.119356.44478.stgit@awfm-01.aw.intel.com Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-01IB/hfi1: Rework the IRQ API to be more flexibleMichael J. Ruhl1-0/+16
The current IRQ API is an all or nothing interface. This has two problems: 1. All IRQs are enabled regardless of use 2. Moving from general interrupt to MSIx handling is difficult Introduce a new API to enable/disable specific IRQs or a range of IRQs. Do not enable and disable all IRQs in one step. Rework various modules to enable/disable IRQs when needed. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-09-01IB/hfi1: Make the MSIx resource allocation a bit more flexibleMichael J. Ruhl1-221/+238
The current method of allocating MSIx resources is a bit cumbersome, and not very easily added to. Refactor and re-order the code paths into a more consistent interface. Update the interface so that allocations are not order dependent. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-09-01IB/hfi1: Prepare for new HFI1 MSIx APIMichael J. Ruhl1-0/+330
The current HFI1 MSIx API is difficult to follow, change, or add to. In anticipation of moving to an more flexible API, move the current MSIx functionality to the new msix.c module. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>