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sch_cake: add RFC 8622 LE PHB support to CAKE diffserv handling

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Change tin mapping on diffserv3, 4 & 8 for LE PHB support, in essence
making LE a member of the Bulk tin.

Bulk has the least priority and minimum of 1/16th total bandwidth in the
face of higher priority traffic.

NB: Diffserv 3 & 4 swap tin 0 & 1 priorities from the default order as
found in diffserv8, in case anyone is wondering why it looks a bit odd.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
[ reword commit message slightly ]
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kevin Darbyshire-Bryant 2020-06-25 22:18:00 +02:00 committed by David S. Miller
parent 7d22bc4530
commit b8392808eb
1 changed files with 4 additions and 4 deletions
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8
net/sched/sch_cake.c
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@ -312,8 +312,8 @@ static const u8 precedence[] = {
};
static const u8 diffserv8[] = {
2, 5, 1, 2, 4, 2, 2, 2,
0, 2, 1, 2, 1, 2, 1, 2,
2, 0, 1, 2, 4, 2, 2, 2,
1, 2, 1, 2, 1, 2, 1, 2,
5, 2, 4, 2, 4, 2, 4, 2,
3, 2, 3, 2, 3, 2, 3, 2,
6, 2, 3, 2, 3, 2, 3, 2,
@ -323,7 +323,7 @@ static const u8 diffserv8[] = {
};
static const u8 diffserv4[] = {
0, 2, 0, 0, 2, 0, 0, 0,
0, 1, 0, 0, 2, 0, 0, 0,
1, 0, 0, 0, 0, 0, 0, 0,
2, 0, 2, 0, 2, 0, 2, 0,
2, 0, 2, 0, 2, 0, 2, 0,
@ -334,7 +334,7 @@ static const u8 diffserv4[] = {
};
static const u8 diffserv3[] = {
0, 0, 0, 0, 2, 0, 0, 0,
0, 1, 0, 0, 2, 0, 0, 0,
1, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,