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2025-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-1/+3
Cross-merge networking fixes after downstream PR (net-6.15-rc8). Conflicts: 80f2ab46c2ee ("irdma: free iwdev->rf after removing MSI-X") 4bcc063939a5 ("ice, irdma: fix an off by one in error handling code") c24a65b6a27c ("iidc/ice/irdma: Update IDC to support multiple consumers") https://lore.kernel.org/20250513130630.280ee6c5@canb.auug.org.au No extra adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-09iidc/ice/irdma: Update IDC to support multiple consumersDave Ertman1-49/+53
In preparation of supporting more than a single core PCI driver for RDMA, move ice specific structs like qset_params, qos_info and qos_params from iidc_rdma.h to iidc_rdma_ice.h. Previously, the ice driver was just exporting its entire PF struct to the auxiliary driver, but since each core driver will have its own different PF struct, implement a universal struct that all core drivers can provide to the auxiliary driver through the probe call. Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Co-developed-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Co-developed-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Co-developed-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-30iidc/ice/irdma: Rename to iidc_* conventionDave Ertman1-19/+22
In preparation of supporting more than a single core PCI driver for RDMA, homogenize naming to iidc_rdma_* and IIDC_RDMA_* form. Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-04-20ice, irdma: fix an off by one in error handling codeDan Carpenter1-1/+1
If we don't allocate the MIN number of IRQs then we need to free what we have and return -ENOMEM. The problem is this loop is off by one so it frees an entry that wasn't allocated and it doesn't free the first entry where i == 0. Fixes: 3e0d3cb3fbe0 ("ice, irdma: move interrupts code to irdma") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Link: https://patch.msgid.link/20250414234231.523-2-tatyana.e.nikolova@intel.com Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-04-20irdma: free iwdev->rf after removing MSI-XMichal Swiatkowski1-0/+2
Currently iwdev->rf is allocated in irdma_probe(), but free in irdma_ib_dealloc_device(). It can be misleading. Move the free to irdma_remove() to be more obvious. Freeing in irdma_ib_dealloc_device() leads to KASAN use-after-free issue. Which can also lead to NULL pointer dereference. Fix this. irdma_deinit_interrupts() can't be moved before freeing iwdef->rf, because in this case deinit interrupts will be done before freeing irqs. The simplest solution is to move kfree(iwdev->rf) to irdma_remove(). Reproducer: sudo rmmod irdma Minified splat(s): BUG: KASAN: use-after-free in irdma_remove+0x257/0x2d0 [irdma] Call Trace: <TASK> ? __pfx__raw_spin_lock_irqsave+0x10/0x10 ? kfree+0x253/0x450 ? irdma_remove+0x257/0x2d0 [irdma] kasan_report+0xed/0x120 ? irdma_remove+0x257/0x2d0 [irdma] irdma_remove+0x257/0x2d0 [irdma] auxiliary_bus_remove+0x56/0x80 device_release_driver_internal+0x371/0x530 ? kernfs_put.part.0+0x147/0x310 driver_detach+0xbf/0x180 bus_remove_driver+0x11b/0x2a0 auxiliary_driver_unregister+0x1a/0x50 irdma_exit_module+0x40/0x4c [irdma] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:ice_free_rdma_qvector+0x2a/0xa0 [ice] Call Trace: ? ice_free_rdma_qvector+0x2a/0xa0 [ice] irdma_remove+0x179/0x2d0 [irdma] auxiliary_bus_remove+0x56/0x80 device_release_driver_internal+0x371/0x530 ? kobject_put+0x61/0x4b0 driver_detach+0xbf/0x180 bus_remove_driver+0x11b/0x2a0 auxiliary_driver_unregister+0x1a/0x50 irdma_exit_module+0x40/0x4c [irdma] Reported-by: Marcin Szycik <marcin.szycik@linux.intel.com> Closes: https://lore.kernel.org/netdev/8e533834-4564-472f-b29b-4f1cb7730053@linux.intel.com/ Fixes: 3e0d3cb3fbe0 ("ice, irdma: move interrupts code to irdma") Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Link: https://patch.msgid.link/20250414234231.523-1-tatyana.e.nikolova@intel.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-02-05ice, irdma: move interrupts code to irdmaMichal Swiatkowski1-2/+44
Move responsibility of MSI-X requesting for RDMA feature from ice driver to irdma driver. It is done to allow simple fallback when there is not enough MSI-X available. Change amount of MSI-X used for control from 4 to 1, as it isn't needed to have more than one MSI-X for this purpose. Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2023-11-15RDMA/irdma: Add wait for suspend on SQDMustafa Ismail1-1/+1
Currently, there is no wait for the QP suspend to complete on a modify to SQD state. Add a wait, after the modify to SQD state, for the Suspend Complete AE. While we are at it, update the suspend timeout value in irdma_prep_tc_change to use IRDMA_EVENT_TIMEOUT_MS too. Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs") Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Link: https://lore.kernel.org/r/20231114170246.238-3-shiraz.saleem@intel.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-09-11IB: Use capital "OR" for multiple licenses in SPDXKrzysztof Kozlowski1-1/+1
Documentation/process/license-rules.rst and checkpatch expect the SPDX identifier syntax for multiple licenses to use capital "OR". Correct it to keep consistent format and avoid copy-paste issues. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230823092912.122674-1-krzysztof.kozlowski@linaro.org Signed-off-by: Leon Romanovsky <leon@kernel.org>
2022-03-15RDMA/irdma: Add support for address handle re-useMustafa Ismail1-1/+1
Address handles (AH) are a limited HW resource and some user applications may create large numbers of identical AH's. Avoid running out of AH's by reusing existing identical ones. Link: https://lore.kernel.org/r/20220228183650.290-1-shiraz.saleem@intel.com Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-02-28RDMA/irdma: Fix Passthrough mode in VMMustafa Ismail1-0/+1
Using PCI_FUNC macro in a VM, when the device is in passthrough mode does not provide the real function instance. This means that currently, devices will not probe unless the instance in the VM matches the instance in the host. Fix this by getting the pf_id from the LAN during the probe. Fixes: 8498a30e1b94 ("RDMA/irdma: Register auxiliary driver and implement private channel OPs") Link: https://lore.kernel.org/r/20220225163211.127-3-shiraz.saleem@intel.com Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-02-23RDMA/irdma: Propagate error codesShiraz Saleem1-7/+5
All functions now return linux error codes. Propagate the return from these functions as opposed to converting them to generic values. Link: https://lore.kernel.org/r/20220217151851.1518-3-shiraz.saleem@intel.com Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-02-23RDMA/irdma: Remove enum irdma_status_codeShiraz Saleem1-3/+3
Replace use of custom irdma_status_code with linux error codes. Remove enum irdma_status_code and header in which its defined. Link: https://lore.kernel.org/r/20220217151851.1518-2-shiraz.saleem@intel.com Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-02-08RDMA/irdma: Add support for DSCPMustafa Ismail1-2/+6
Add DSCP support for the Intel Ethernet 800 Series devices. Setup VSI DSCP info when PCI driver indicates DSCP mode during driver probe or as notification event. Link: https://lore.kernel.org/r/20220202191921.1638-4-shiraz.saleem@intel.com Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-02-08RDMA/irdma: Refactor DCB bits in prep for DSCP supportMustafa Ismail1-1/+5
Rename dcb flag to dcb_vlan_mode in irdma_device struct. Add a new helper function, irdma_set_qos_info, to set the VSI QoS information passed by the PCI driver. Link: https://lore.kernel.org/r/20220202191921.1638-3-shiraz.saleem@intel.com Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2022-01-12Merge tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds1-2/+2
Pull driver core updates from Greg KH: "Here is the set of changes for the driver core for 5.17-rc1. Lots of little things here, including: - kobj_type cleanups - auxiliary_bus documentation updates - auxiliary_device conversions for some drivers (relevant subsystems all have provided acks for these) - kernfs lock contention reduction for some workloads - other tiny cleanups and changes. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (43 commits) kobject documentation: remove default_attrs information drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb debugfs: lockdown: Allow reading debugfs files that are not world readable driver core: Make bus notifiers in right order in really_probe() driver core: Move driver_sysfs_remove() after driver_sysfs_add() firmware: edd: remove empty default_attrs array firmware: dmi-sysfs: use default_groups in kobj_type qemu_fw_cfg: use default_groups in kobj_type firmware: memmap: use default_groups in kobj_type sh: sq: use default_groups in kobj_type headers/uninline: Uninline single-use function: kobject_has_children() devtmpfs: mount with noexec and nosuid driver core: Simplify async probe test code by using ktime_ms_delta() nilfs2: use default_groups in kobj_type kobject: remove kset from struct kset_uevent_ops callbacks driver core: make kobj_type constant. driver core: platform: document registration-failure requirement vdpa/mlx5: Use auxiliary_device driver data helpers net/mlx5e: Use auxiliary_device driver data helpers soundwire: intel: Use auxiliary_device driver data helpers ...
2021-12-22RDMA/irdma: Use auxiliary_device driver data helpersDavid E. Box1-2/+2
Use auxiliary_get_drvdata and auxiliary_set_drvdata helpers. Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20211221235852.323752-2-david.e.box@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-22RDMA/irdma: Set protocol based on PF rdma_mode flagShiraz Saleem1-1/+2
Set the RDMA protocol to use at driver bind time based on the ice PF's rdma_mode flag. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Tested-by: Leszek Kaliszczuk <leszek.kaliszczuk@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-07-15RDMA/irdma: Check vsi pointer before using itTatyana Nikolova1-3/+6
Fix a coverity warning about NULL pointer dereference: Dereferencing "vsi", which is known to be "NULL". Link: https://lore.kernel.org/r/20210708213521.438-1-tatyana.e.nikolova@intel.com Reported-by: coverity-bot <keescook+coverity-bot@chromium.org> Addresses-Coverity-ID: 1505164 ("Null pointer dereferences") Fixes: 8498a30e1b94 ("RDMA/irdma: Register auxiliary driver and implement private channel OPs") Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-06-02RDMA/irdma: Register auxiliary driver and implement private channel OPsMustafa Ismail1-0/+358
Register auxiliary drivers which can attach to auxiliary RDMA devices from Intel PCI netdev drivers i40e and ice. Implement the private channel ops, and register net notifiers. Link: https://lore.kernel.org/r/20210602205138.889-2-shiraz.saleem@intel.com [flexible array transformation] Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>