Magnus Karlsson b5aea28dca xsk: Add shared umem support between queue ids ... Add support to share a umem between queue ids on the same device. This mode can be invoked with the XDP_SHARED_UMEM bind flag. Previously, sharing was only supported within the same queue id and device, and you shared one set of fill and completion rings. However, note that when sharing a umem between queue ids, you need to create a fill ring and a completion ring and tie them to the socket before you do the bind with the XDP_SHARED_UMEM flag. This so that the single-producer single-consumer semantics can be upheld. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/1598603189-32145-12-git-send-email-magnus.karlsson@intel.com		2020-08-31 21:15:04 +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: Enable sharing of dma mappings	2020-08-31 21:15:04 +02:00
xdp_umem.h	xsk: Move xsk_tx_list and its lock to buffer pool	2020-08-31 21:15:04 +02:00
xsk_buff_pool.c	xsk: Add shared umem support between queue ids	2020-08-31 21:15:04 +02:00
xsk_diag.c	xsk: Move queue_id, dev and need_wakeup to buffer pool	2020-08-31 21:15:04 +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: Create and free buffer pool independently from umem	2020-08-31 21:15:04 +02:00
xsk.c	xsk: Add shared umem support between queue ids	2020-08-31 21:15:04 +02:00
xsk.h	xsk: Move queue_id, dev and need_wakeup to buffer pool	2020-08-31 21:15:04 +02:00
xskmap.c	bpf: Relax max_entries check for most of the inner map types	2020-08-28 15:41:30 +02:00