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path: root/drivers/infiniband/hw/ionic/ionic_ibdev.h
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2026-09-30RDMA/ionic: implement SRQ event handling supportAmit Kumar
Introduce SRQ event types and associated events. Report these events through the SRQ event handler during event processing. Signed-off-by: Amit Kumar <a.k@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260930092111.3176738-6-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-09-30RDMA/ionic: add Shared receive queue (SRQ) supportAmit Kumar
Implement device supported verb APIs for shared receive queue. SRQ is supported for userspace only. ionic_create_srq() returns -EOPNOTSUPP when there is no ucontext, so kernel ULPs cannot create an SRQ. Signed-off-by: Amit Kumar <a.k@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260930092111.3176738-5-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-09-30RDMA/ionic: segregate rq related fields from ionic_qp into a new ionic_rq structAmit Kumar
In preparation for SRQ support, segregate rq related fields from ionic_qp into a new ionic_rq struct. This refactoring enables both non-SRQ and future SRQ code to leverage the common rq init/destroy infrastructure around ionic_qp_rq_init/_destroy with no functional changes. Signed-off-by: Amit Kumar <a.k@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260930092111.3176738-4-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-09-30RDMA/ionic: support firmware-assigned CQ IDsAbhijit Gangurde
When the LIF advertises qid allocation for CQ, let firmware return the completion queue ID instead of allocating it in the driver bitmap. Split CQ create/destroy into distinct phases so cq_tbl is updated only after the ID is known and removed before the destroy admin command returns the ID to firmware, avoiding a race where a concurrent create reusing the same cqid could have its xarray entry erased by a stale destroy. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260930092111.3176738-3-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-08-06RDMA/ionic: Embed counter driver data in rdma_counter allocationAbhijit Gangurde
Commit 7e53b31acc7f ("RDMA/core: Create and destroy rdma_counter using rdma_zalloc_drv_obj()") requires drivers implementing counter ops to embed struct rdma_counter in a driver-specific struct, register its size via INIT_RDMA_OBJ_SIZE, and provide a counter_init callback. The ionic driver was merged without this adaptation, causing a NULL pointer dereference in alloc_and_bind() since rdma_zalloc_drv_obj() allocates zero bytes when size_rdma_counter is unset. Consolidate struct ionic_counter into a new struct ionic_rdma_counter that embeds struct rdma_counter, replace the xarray with a lightweight ida for ID allocation, and add the required counter_init and INIT_RDMA_OBJ_SIZE declarations. Fixes: ea4c399642b8 ("RDMA/ionic: Implement device stats ops") Cc: stable@vger.kernel.org # 6.18 Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260805053254.4023262-2-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-07-22RDMA/ionic: map PHC state into user spaceAbhijit Gangurde
Enable user space applications to access the PHC state page when firmware RDMA completion timestamp is supported. This mapping allows user space to convert RDMA completion timestamps to system wall time without kernel transitions, minimizing latency overhead. Applications can directly read the PHC state through mmap, enabling efficient timestamp correlation for precision timing applications. Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20260610154216.712374-4-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-07-09RDMA/ionic: Remove duplicate IONIC_SPEC_HIGH definitionKamal Heib
The macro IONIC_SPEC_HIGH is defined twice - remove it. Signed-off-by: Kamal Heib <kheib@redhat.com> Link: https://patch.msgid.link/20260708210734.641411-1-kheib@redhat.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-02-25RDMA: Move DMA block iterator logic into dedicated filesLeon Romanovsky
The DMA iterator logic was mixed into verbs and umem-specific code, forcing all users to include rdma/ib_umem.h. Move the block iterator logic into iter.c and rdma/iter.h so that rdma/ib_umem.h and rdma/ib_verbs.h can be separated in a follow-up patch. Link: https://patch.msgid.link/20260213-refactor-umem-v1-1-f3be85847922@nvidia.com Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
2025-09-21RDMA/ionic: Fix build failure on SPARC due to xchg() operand sizeAbhijit Gangurde
xchg() is used to safely handle the event queue arming. However SPARC xchg operates only 4B of variable. Change variable type from bool to int. Unverified Error/Warning (likely false positive, kindly check if interested): ERROR: modpost: "__xchg_called_with_bad_pointer" [drivers/infiniband/hw/ionic/ionic_rdma.ko] undefined! Error/Warning ids grouped by kconfigs: recent_errors `-- sparc-allmodconfig `-- ERROR:__xchg_called_with_bad_pointer-drivers-infiniband-hw-ionic-ionic_rdma.ko-undefined Fixes: f3bdbd42702c ("RDMA/ionic: Create device queues to support admin operations") Reported-by: Leon Romanovsky <leon@kernel.org> Closes: https://lore.kernel.org/lkml/20250918180750.GA135135@unreal/ Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250919121301.1113759-1-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-09-11RDMA/ionic: Implement device stats opsAbhijit Gangurde
Implement device stats operations for hw stats and qp stats. Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250903061606.4139957-14-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-09-11RDMA/ionic: Register device ops for miscellaneous functionalityAbhijit Gangurde
Implement idbdev ops for device and port information. Co-developed-by: Andrew Boyer <andrew.boyer@amd.com> Signed-off-by: Andrew Boyer <andrew.boyer@amd.com> Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250903061606.4139957-13-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-09-11RDMA/ionic: Register device ops for datapathAbhijit Gangurde
Implement device supported verb APIs for datapath. Co-developed-by: Andrew Boyer <andrew.boyer@amd.com> Signed-off-by: Andrew Boyer <andrew.boyer@amd.com> Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250903061606.4139957-12-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-09-11RDMA/ionic: Register device ops for control pathAbhijit Gangurde
Implement device supported verb APIs for control path. Co-developed-by: Andrew Boyer <andrew.boyer@amd.com> Signed-off-by: Andrew Boyer <andrew.boyer@amd.com> Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250903061606.4139957-11-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-09-11RDMA/ionic: Create device queues to support admin operationsAbhijit Gangurde
Setup RDMA admin queues using device command exposed over auxiliary device and manage these queues using ida. Co-developed-by: Andrew Boyer <andrew.boyer@amd.com> Signed-off-by: Andrew Boyer <andrew.boyer@amd.com> Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250903061606.4139957-10-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-09-11RDMA/ionic: Register auxiliary module for ionic ethernet adapterAbhijit Gangurde
Register auxiliary module to create ibdevice for ionic ethernet adapter. Co-developed-by: Andrew Boyer <andrew.boyer@amd.com> Signed-off-by: Andrew Boyer <andrew.boyer@amd.com> Co-developed-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Allen Hubbe <allen.hubbe@amd.com> Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com> Link: https://patch.msgid.link/20250903061606.4139957-9-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky <leon@kernel.org>