Magnus Karlsson 9684f5e7c8 xsk: do not return EAGAIN from sendmsg when completion queue is full ... This patch stops returning EAGAIN in TX copy mode when the completion queue is full as zero-copy does not do this. Instead this situation can be detected by comparing the head and tail pointers of the completion queue in both modes. In any case, EAGAIN was not the correct error code here since no amount of calling sendmsg will solve the problem. Only consuming one or more messages on the completion queue will fix this. With this patch, the error reporting becomes consistent between copy mode and zero-copy mode. Fixes: 35fcde7f8d ("xsk: support for Tx") Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-07-13 15:34:31 +02:00
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Kconfig
Makefile
xdp_umem_props.h
xdp_umem.c	xsk: silence warning on memory allocation failure	2018-06-11 23:49:07 +02:00
xdp_umem.h
xsk_queue.c
xsk_queue.h	xsk: fix potential lost completion message in SKB path	2018-07-02 18:37:11 -07:00
xsk.c	xsk: do not return EAGAIN from sendmsg when completion queue is full	2018-07-13 15:34:31 +02:00