Ivan Malov e7a1d51009 xsk: Clear page contiguity bit when unmapping pool ... [ Upstream commit 512d1999b8 ] When a XSK pool gets mapped, xp_check_dma_contiguity() adds bit 0x1 to pages' DMA addresses that go in ascending order and at 4K stride. The problem is that the bit does not get cleared before doing unmap. As a result, a lot of warnings from iommu_dma_unmap_page() are seen in dmesg, which indicates that lookups by iommu_iova_to_phys() fail. Fixes: 2b43470add ("xsk: Introduce AF_XDP buffer allocation API") Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/bpf/20220628091848.534803-1-ivan.malov@oktetlabs.ru Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-07-12 16:35:15 +02:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	xsk: Introduce AF_XDP buffer allocation API	2020-05-21 17:31:26 -07:00
xdp_umem.c	xsk: Use kvcalloc to support large umems	2021-05-25 13:11:50 +02:00
xdp_umem.h	xsk: Fix umem cleanup bug at socket destruct	2020-11-20 15:52:39 +01:00
xsk.c	xsk: Fix generic transmit when completion queue reservation fails	2022-06-29 09:03:21 +02:00
xsk.h	xdp: Add proper __rcu annotations to redirect map entries	2021-06-24 19:41:15 +02:00
xsk_buff_pool.c	xsk: Clear page contiguity bit when unmapping pool	2022-07-12 16:35:15 +02:00
xsk_diag.c	xsk: Fix possible segfault in xsk umem diagnostics	2020-09-02 16:49:40 +02:00
xsk_queue.c	xsk: Remove MEM_TYPE_ZERO_COPY and corresponding code	2020-05-21 17:31:27 -07:00
xsk_queue.h	xsk: Fix handling of invalid descriptors in XSK TX batching API	2022-06-14 18:36:18 +02:00
xskmap.c	xdp: Add proper __rcu annotations to redirect map entries	2021-06-24 19:41:15 +02:00