RDMA/mlx5: Support driver APIs pre_destroy_cq and post_destroy_cq
authorMark Zhang <markzhang@nvidia.com>
Mon, 16 Jun 2025 10:42:38 +0000 (13:42 +0300)
committerLeon Romanovsky <leon@kernel.org>
Wed, 25 Jun 2025 07:49:56 +0000 (03:49 -0400)
commitb5eeb8365d196c95dbb0fd0a5b5a69a44832f16f
tree437523fbd458d1972b134bec01d0c7dfc86ac2a4
parent5a2a5b65d5d67279be9e1f0e4b9baf39ee594cb1
RDMA/mlx5: Support driver APIs pre_destroy_cq and post_destroy_cq

- pre_destroy_cq: Destroy FW CQ object so that no new CQ event would
                  be generated;
- post_destroy_cq: Release all resources.

This patch, along with last one, fixes the crash below.

 Unable to handle kernel paging request at virtual address ffff8000114b1180
 Mem abort info:
   ESR = 0x96000047
   EC = 0x25: DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
 Data abort info:
   ISV = 0, ISS = 0x00000047
   CM = 0, WnR = 1
 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000f4582000
 [ffff8000114b1180] pgd=00000447fffff003, p4d=00000447fffff003, pud=00000447ffffe003, pmd=00000447ffffb003, pte=0000000000000000
 Internal error: Oops: 96000047 [#1] SMP
 Modules linked in: udp_diag uio_pci_generic uio tcp_diag inet_diag binfmt_misc sn_core_odd(OE) rpcrdma(OE) xprtrdma(OE) ib_isert(OE) ib_iser(OE) ib_srpt(OE) ib_srp(OE) ib_ipoib(OE) kpatch_9658536(OK) kpatch_9322385(OK) kpatch_8843421(OK) kpatch_8636216(OK) vfat fat aes_ce_blk crypto_simd cryptd aes_ce_cipher crct10dif_ce ghash_ce sm4_ce sha2_ce sha256_arm64 sha1_ce sbsa_gwdt sg acpi_ipmi ipmi_si ipmi_msghandler m1_uncore_ddrss_pmu m1_uncore_cmn_pmu team_yosemite9rc6(OE) vnic(OE) ip_tables mlx5_ib(OE) sd_mod ast mlx5_core(OE) i2c_algo_bit drm_vram_helper psample drm_kms_helper mlxdevm(OE) auxiliary(OE) mlxfw(OE) syscopyarea sysfillrect tls sysimgblt fb_sys_fops drm_ttm_helper nvme ttm nvme_core drm t10_pi i2c_designware_platform i2c_designware_core i2c_core ahci libahci libata rdma_ucm(OE) ib_uverbs(OE) rdma_cm(OE) iw_cm(OE) ib_cm(OE) ib_umad(OE) ib_core(OE) ib_ucm(OE) mlx_compat(OE) [last unloaded: ipmi_devintf]
 CPU: 83 PID: 59375 Comm: kworker/u253:1 Kdump: loaded Tainted: G           OE K   5.10.84-004.ali5000.alios7.aarch64 #1
 Hardware name: Inspur AliServer-Xuanwu2.0AM-02-2UM1P-5B/AS1221MG1, BIOS 1.2.M1.AL.P.158.00 08/31/2023
 Workqueue: ib-comp-unb-wq ib_cq_poll_work [ib_core]
 pstate: 82c00089 (Nzcv daIf +PAN +UAO +TCO BTYPE=--)
 pc : native_queued_spin_lock_slowpath+0x1c4/0x31c
 lr : mlx5_ib_poll_cq+0x18c/0x2f8 [mlx5_ib]
 sp : ffff80002be1bc80
 x29: ffff80002be1bc80 x28: ffff000810e69000
 x27: ffff000810e69000 x26: ffff000810e69200
 x25: 0000000000000000 x24: ffff8000117db000
 x23: ffff04000156b780 x22: 0000000000000000
 x21: ffff04000ce6c160 x20: ffff0008196a4000
 x19: 0000000000000010 x18: 0000000000000020
 x17: 0000000000000000 x16: 0000000000000000
 x15: ffff040055a364e8 x14: ffffffffffffffff
 x13: ffff80002318bda8 x12: ffff0400358836e8
 x11: 0000000000000040 x10: 0000000000000eb0
 x9 : 0000000000000000 x8 : 0000000000000000
 x7 : ffff04477fa20140 x6 : ffff8000114b1140
 x5 : ffff04477fa20140 x4 : ffff8000114b1180
 x3 : ffff000810e69200 x2 : ffff8000114b1180
 x1 : 0000000001500000 x0 : ffff04477fa20148
 Call trace:
  native_queued_spin_lock_slowpath+0x1c4/0x31c
  __ib_process_cq+0x74/0x1b8 [ib_core]
  ib_cq_poll_work+0x34/0xa0 [ib_core]
  process_one_work+0x1d8/0x4b0
  worker_thread+0x180/0x440
  kthread+0x114/0x120
 Code: 910020e0 8b0400c4 f862d929 aa0403e2 (f8296847)
 ---[ end trace 387be2290557729c ]---
 Kernel panic - not syncing: Oops: Fatal exception
 SMP: stopping secondary CPUs
 Kernel Offset: disabled
 CPU features: 0x9850817,7a60aa38
 Memory Limit: none
 Starting crashdump kernel...
 Bye!

Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Link: https://patch.msgid.link/aaf0072f350d1c7e8731f43b79e11a560bafb9e0.1750070205.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
drivers/infiniband/hw/mlx5/cq.c
drivers/infiniband/hw/mlx5/main.c
drivers/infiniband/hw/mlx5/mlx5_ib.h