linux/include
Jesus Sanchez-Palencia 4b15c70753 net/sched: Make etf report drops on error_queue
Use the socket error queue for reporting dropped packets if the
socket has enabled that feature through the SO_TXTIME API.

Packets are dropped either on enqueue() if they aren't accepted by the
qdisc or on dequeue() if the system misses their deadline. Those are
reported as different errors so applications can react accordingly.

Userspace can retrieve the errors through the socket error queue and the
corresponding cmsg interfaces. A struct sock_extended_err* is used for
returning the error data, and the packet's timestamp can be retrieved by
adding both ee_data and ee_info fields as e.g.:

    ((__u64) serr->ee_data << 32) + serr->ee_info

This feature is disabled by default and must be explicitly enabled by
applications. Enabling it can bring some overhead for the Tx cycles
of the application.

Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-04 22:30:28 +09:00
..
acpi ACPI / processor: Finish making acpi_processor_ppc_has_changed() void 2018-06-20 10:50:40 +02:00
asm-generic locking/qspinlock: Fix build for anonymous union in older GCC compilers 2018-06-22 04:19:16 +02:00
clocksource
crypto Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
drm drm for v4.18-rc1 2018-06-06 08:16:33 -07:00
dt-bindings ARM: SoC driver updates 2018-06-11 18:15:22 -07:00
keys docs: Fix some broken references 2018-06-15 18:10:01 -03:00
kvm KVM: arm/arm64: Bump VGIC_V3_MAX_CPUS to 512 2018-05-25 12:29:27 +01:00
linux net/sched: Introduce the ETF Qdisc 2018-07-04 22:30:27 +09:00
math-emu
media media: v4l2-core: push taking ioctl mutex down to ioctl handler 2018-05-28 16:31:44 -04:00
memory
misc ocxl: Expose the thread_id needed for wait on POWER9 2018-06-03 20:40:32 +10:00
net net/sched: Make etf report drops on error_queue 2018-07-04 22:30:28 +09:00
pcmcia
ras
rdma 4.18-rc 2018-06-21 07:22:30 +09:00
scsi SCSI misc on 20180610 2018-06-10 13:01:12 -07:00
soc ARM: SoC: late updates 2018-06-11 18:19:45 -07:00
sound sound updates for 4.18 2018-06-06 09:08:38 -07:00
target scsi: target: transport should handle st FM/EOM/ILI reads 2018-05-18 12:22:48 -04:00
trace net: core: unwrap skb list receive slightly further 2018-07-04 14:06:19 +09:00
uapi net/sched: Make etf report drops on error_queue 2018-07-04 22:30:28 +09:00
video fbdev changes for v4.18: 2018-06-17 05:00:24 +09:00
xen xen: fixes for 4.18-rc2 2018-06-23 20:44:11 +08:00