Jesper Dangaard Brouer 8a8e3d84b1 net_sched: restore "linklayer atm" handling ... commit 56b765b79 ("htb: improved accuracy at high rates") broke the "linklayer atm" handling. tc class add ... htb rate X ceil Y linklayer atm The linklayer setting is implemented by modifying the rate table which is send to the kernel. No direct parameter were transferred to the kernel indicating the linklayer setting. The commit 56b765b79 ("htb: improved accuracy at high rates") removed the use of the rate table system. To keep compatible with older iproute2 utils, this patch detects the linklayer by parsing the rate table. It also supports future versions of iproute2 to send this linklayer parameter to the kernel directly. This is done by using the __reserved field in struct tc_ratespec, to convey the choosen linklayer option, but only using the lower 4 bits of this field. Linklayer detection is limited to speeds below 100Mbit/s, because at high rates the rtab is gets too inaccurate, so bad that several fields contain the same values, this resembling the ATM detect. Fields even start to contain "0" time to send, e.g. at 1000Mbit/s sending a 96 bytes packet cost "0", thus the rtab have been more broken than we first realized. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-08-15 01:43:08 -07:00
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asm-generic	allow O_TMPFILE to work with O_WRONLY	2013-07-20 03:11:32 +04:00
drm	Merge branch 'drm/for-next' of git://anongit.freedesktop.org/tegra/linux into drm-next	2013-06-28 09:29:04 +10:00
linux	net_sched: restore "linklayer atm" handling	2013-08-15 01:43:08 -07:00
mtd	UBI: document UBI_IOCVOLUP better in user header	2013-05-29 15:19:26 +03:00
rdma	RDMA/ucma: Allow user space to specify AF_IB when joining multicast	2013-06-20 23:35:45 -07:00
scsi	FCoE Updates for 3.9	2013-03-01 09:10:08 +00:00
sound	ALSA: Replace the magic number 44 with const	2013-06-28 12:14:44 +02:00
video	UAPI: (Scripted) Disintegrate include/video	2012-12-20 17:14:26 +00:00
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