net/mlx5: Update error handler for UCTX and UMEM
authorNeta Ostrovsky <netao@nvidia.com>
Wed, 27 Oct 2021 12:16:14 +0000 (15:16 +0300)
committerSaeed Mahameed <saeedm@nvidia.com>
Tue, 16 Nov 2021 20:20:21 +0000 (12:20 -0800)
In the fast unload flow, the device state is set to internal error,
which indicates that the driver started the destroy process.
In this case, when a destroy command is being executed, it should return
MLX5_CMD_STAT_OK.
Fix MLX5_CMD_OP_DESTROY_UCTX and MLX5_CMD_OP_DESTROY_UMEM to return OK
instead of EIO.

This fixes a call trace in the umem release process -
[ 2633.536695] Call Trace:
[ 2633.537518]  ib_uverbs_remove_one+0xc3/0x140 [ib_uverbs]
[ 2633.538596]  remove_client_context+0x8b/0xd0 [ib_core]
[ 2633.539641]  disable_device+0x8c/0x130 [ib_core]
[ 2633.540615]  __ib_unregister_device+0x35/0xa0 [ib_core]
[ 2633.541640]  ib_unregister_device+0x21/0x30 [ib_core]
[ 2633.542663]  __mlx5_ib_remove+0x38/0x90 [mlx5_ib]
[ 2633.543640]  auxiliary_bus_remove+0x1e/0x30 [auxiliary]
[ 2633.544661]  device_release_driver_internal+0x103/0x1f0
[ 2633.545679]  bus_remove_device+0xf7/0x170
[ 2633.546640]  device_del+0x181/0x410
[ 2633.547606]  mlx5_rescan_drivers_locked.part.10+0x63/0x160 [mlx5_core]
[ 2633.548777]  mlx5_unregister_device+0x27/0x40 [mlx5_core]
[ 2633.549841]  mlx5_uninit_one+0x21/0xc0 [mlx5_core]
[ 2633.550864]  remove_one+0x69/0xe0 [mlx5_core]
[ 2633.551819]  pci_device_remove+0x3b/0xc0
[ 2633.552731]  device_release_driver_internal+0x103/0x1f0
[ 2633.553746]  unbind_store+0xf6/0x130
[ 2633.554657]  kernfs_fop_write+0x116/0x190
[ 2633.555567]  vfs_write+0xa5/0x1a0
[ 2633.556407]  ksys_write+0x4f/0xb0
[ 2633.557233]  do_syscall_64+0x5b/0x1a0
[ 2633.558071]  entry_SYSCALL_64_after_hwframe+0x65/0xca
[ 2633.559018] RIP: 0033:0x7f9977132648
[ 2633.559821] Code: 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 55 6f 2d 00 8b 00 85 c0 75 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 41 54 49 89 d4 55
[ 2633.562332] RSP: 002b:00007fffb1a83888 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 2633.563472] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f9977132648
[ 2633.564541] RDX: 000000000000000c RSI: 000055b90546e230 RDI: 0000000000000001
[ 2633.565596] RBP: 000055b90546e230 R08: 00007f9977406860 R09: 00007f9977a54740
[ 2633.566653] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f99774056e0
[ 2633.567692] R13: 000000000000000c R14: 00007f9977400880 R15: 000000000000000c
[ 2633.568725] ---[ end trace 10b4fe52945e544d ]---

Fixes: 6a6fabbfa3e8 ("net/mlx5: Update pci error handler entries and command translation")
Signed-off-by: Neta Ostrovsky <netao@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
drivers/net/ethernet/mellanox/mlx5/core/cmd.c

index f71ec4d9d68e38af2b8a7d73e0e48ac430ae003d..8eaa24d865c55b0c50088db22abf9e2c0c271989 100644 (file)
@@ -339,6 +339,8 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
        case MLX5_CMD_OP_PAGE_FAULT_RESUME:
        case MLX5_CMD_OP_QUERY_ESW_FUNCTIONS:
        case MLX5_CMD_OP_DEALLOC_SF:
+       case MLX5_CMD_OP_DESTROY_UCTX:
+       case MLX5_CMD_OP_DESTROY_UMEM:
                return MLX5_CMD_STAT_OK;
 
        case MLX5_CMD_OP_QUERY_HCA_CAP:
@@ -464,9 +466,7 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
        case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
        case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
        case MLX5_CMD_OP_CREATE_UCTX:
-       case MLX5_CMD_OP_DESTROY_UCTX:
        case MLX5_CMD_OP_CREATE_UMEM:
-       case MLX5_CMD_OP_DESTROY_UMEM:
        case MLX5_CMD_OP_ALLOC_MEMIC:
        case MLX5_CMD_OP_MODIFY_XRQ:
        case MLX5_CMD_OP_RELEASE_XRQ_ERROR: