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linux-stable/drivers/virtio
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Xuan Zhuo 1f475cd572 virtio_ring: fix syncs DMA memory with different direction 
Now the APIs virtqueue_dma_sync_single_range_for_{cpu,device} ignore
the parameter 'dir', that is a mistake.

[    6.101666] ------------[ cut here ]------------
[    6.102079] DMA-API: virtio-pci 0000:00:04.0: device driver syncs DMA memory with different direction [device address=0x00000000ae010000] [size=32752 bytes] [mapped with DMA_FROM_DEVICE] [synced with DMA_BIDIRECTIONAL]
[    6.103630] WARNING: CPU: 6 PID: 0 at kernel/dma/debug.c:1125 check_sync+0x53e/0x6c0
[    6.107420] CPU: 6 PID: 0 Comm: swapper/6 Tainted: G            E      6.6.0+ #290
[    6.108030] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[    6.108936] RIP: 0010:check_sync+0x53e/0x6c0
[    6.109289] Code: 24 10 e8 f5 d9 74 00 4c 8b 4c 24 10 4c 8b 44 24 18 48 8b 4c 24 20 48 89 c6 41 56 4c 89 ea 48 c7 c7 b0 f1 50 82 e8 32 fc f3 ff <0f> 0b 48 c7 c7 48 4b 4a 82 e8 74 d9 fc ff 8b 73 4c 48 8d 7b 50 31
[    6.110750] RSP: 0018:ffffc90000180cd8 EFLAGS: 00010092
[    6.111178] RAX: 00000000000000ce RBX: ffff888100aa5900 RCX: 0000000000000000
[    6.111744] RDX: 0000000000000104 RSI: ffffffff824c3208 RDI: 00000000ffffffff
[    6.112316] RBP: ffffc90000180d40 R08: 0000000000000000 R09: 00000000fffeffff
[    6.112893] R10: ffffc90000180b98 R11: ffffffff82f63308 R12: ffffffff83d5af00
[    6.113460] R13: ffff888100998200 R14: ffffffff824a4b5f R15: 0000000000000286
[    6.114027] FS:  0000000000000000(0000) GS:ffff88842fd80000(0000) knlGS:0000000000000000
[    6.114665] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.115128] CR2: 00007f10f1e03030 CR3: 0000000108272004 CR4: 0000000000770ee0
[    6.115701] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    6.116272] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    6.116842] PKRU: 55555554
[    6.117069] Call Trace:
[    6.117275]  <IRQ>
[    6.117452]  ? __warn+0x84/0x140
[    6.117727]  ? check_sync+0x53e/0x6c0
[    6.118034]  ? __report_bug+0xea/0x100
[    6.118353]  ? check_sync+0x53e/0x6c0
[    6.118653]  ? report_bug+0x41/0xc0
[    6.118944]  ? handle_bug+0x3c/0x70
[    6.119237]  ? exc_invalid_op+0x18/0x70
[    6.119551]  ? asm_exc_invalid_op+0x1a/0x20
[    6.119900]  ? check_sync+0x53e/0x6c0
[    6.120199]  ? check_sync+0x53e/0x6c0
[    6.120499]  debug_dma_sync_single_for_cpu+0x5c/0x70
[    6.120906]  ? dma_sync_single_for_cpu+0xb7/0x100
[    6.121291]  virtnet_rq_unmap+0x158/0x170 [virtio_net]
[    6.121716]  virtnet_receive+0x196/0x220 [virtio_net]
[    6.122135]  virtnet_poll+0x48/0x1b0 [virtio_net]
[    6.122524]  __napi_poll+0x29/0x1b0
[    6.123083]  net_rx_action+0x282/0x360
[    6.123612]  __do_softirq+0xf3/0x2fb
[    6.124138]  __irq_exit_rcu+0x8e/0xf0
[    6.124663]  common_interrupt+0xbc/0xe0
[    6.125202]  </IRQ>

We need to enable CONFIG_DMA_API_DEBUG and work with need sync mode(such
as swiotlb) to reproduce this warn.

Fixes: 8bd2f71054 ("virtio_ring: introduce dma sync api for virtqueue")
Reported-by: "Ning, Hongyu" <hongyu.ning@linux.intel.com>
Closes: https://lore.kernel.org/all/f37cb55a-6fc8-4e21-8789-46d468325eea@linux.intel.com/
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Message-Id: <20231201033303.25141-1-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Tested-by: Hongyu Ning <hongyu.ning@linux.intel.com>
 		2023-12-04 08:36:25 -05:00
..
Kconfig virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
Makefile virtio: replace restricted mem access flag with callback 2022-08-01 07:42:49 +02:00
virtio.c driver core: make struct bus_type.uevent() take a const * 2023-01-27 13:45:52 +01:00
virtio_anchor.c virtio: replace restricted mem access flag with callback 2022-08-01 07:42:49 +02:00
virtio_balloon.c vhost,virtio,vdpa: features, fixes, cleanups 2023-11-05 09:02:32 -10:00
virtio_dma_buf.c
…
virtio_input.c virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
virtio_mem.c virtio-mem: check if the config changed before fake offlining memory 2023-08-10 15:51:46 -04:00
virtio_mmio.c virtio-mmio: fix memory leak of vm_dev 2023-10-18 11:29:09 -04:00
virtio_pci_common.c virtio_pci: Switch away from deprecated irq_set_affinity_hint 2023-11-01 09:31:16 -04:00
virtio_pci_common.h virtio_pci: Optimize virtio_pci_device structure size 2023-06-27 10:47:08 -04:00
virtio_pci_legacy.c virtio-pci: Fix legacy device flag setting error in probe 2023-08-10 15:24:28 -04:00
virtio_pci_legacy_dev.c virtio/virtio_pci_legacy_dev: ensure the correct return value 2022-01-14 18:50:53 -05:00
virtio_pci_modern.c virtio_pci: add check for common cfg size 2023-11-01 09:19:59 -04:00
virtio_pci_modern_dev.c virtio_pci: move structure to a header 2023-11-01 09:31:16 -04:00
virtio_ring.c virtio_ring: fix syncs DMA memory with different direction 2023-12-04 08:36:25 -05:00
virtio_vdpa.c vhost-vdpa: clean iotlb map during reset for older userspace 2023-11-01 09:20:00 -04:00