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| author | John Fastabend <john.fastabend@gmail.com> | 2016-02-29 20:26:13 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-03 22:25:15 +0100 |
| commit | 5eb4dce3b3471ec9d1ea2945fa3d2bab4ac7e100 (patch) | |
| tree | 81f310ff66f83f1d878223f681b98b362bbcacc1 /drivers/net/ethernet/ti | |
| parent | ethernet/atl1c: remove left over dead code (diff) | |
| download | linux-5eb4dce3b3471ec9d1ea2945fa3d2bab4ac7e100.tar.xz linux-5eb4dce3b3471ec9d1ea2945fa3d2bab4ac7e100.zip | |
net: relax setup_tc ndo op handle restriction
I added this check in setup_tc to multiple drivers,
if (handle != TC_H_ROOT || tc->type != TC_SETUP_MQPRIO)
Unfortunately restricting to TC_H_ROOT like this breaks the old
instantiation of mqprio to setup a hardware qdisc. This patch
relaxes the test to only check the type to make it equivalent
to the check before I broke it. With this the old instantiation
continues to work.
A good smoke test is to setup mqprio with,
# tc qdisc add dev eth4 root mqprio num_tc 8 \
map 0 1 2 3 4 5 6 7 \
queues 0@0 1@1 2@2 3@3 4@4 5@5 6@6 7@7
Fixes: e4c6734eaab9 ("net: rework ndo tc op to consume additional qdisc handle paramete")
Reported-by: Singh Krishneil <krishneil.k.singh@intel.com>
Reported-by: Jake Keller <jacob.e.keller@intel.com>
CC: Murali Karicheri <m-karicheri2@ti.com>
CC: Shradha Shah <sshah@solarflare.com>
CC: Or Gerlitz <ogerlitz@mellanox.com>
CC: Ariel Elior <ariel.elior@qlogic.com>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Bruce Allan <bruce.w.allan@intel.com>
CC: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ti')
| -rw-r--r-- | drivers/net/ethernet/ti/netcp_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c index ed0c30f590d4..1d0942c53120 100644 --- a/drivers/net/ethernet/ti/netcp_core.c +++ b/drivers/net/ethernet/ti/netcp_core.c @@ -1860,7 +1860,7 @@ static int netcp_setup_tc(struct net_device *dev, u32 handle, __be16 proto, /* setup tc must be called under rtnl lock */ ASSERT_RTNL(); - if (handle != TC_H_ROOT || tc->type != TC_SETUP_MQPRIO) + if (tc->type != TC_SETUP_MQPRIO) return -EINVAL; /* Sanity-check the number of traffic classes requested */ |