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| author | Amritha Nambiar | 2017-10-27 11:35:34 +0200 |
|---|---|---|
| committer | Jeff Kirsher | 2017-10-31 18:45:45 +0100 |
| commit | 384c181e3780ddc45e70483e29d84495b484730d (patch) | |
| tree | 8f063cca3ae12f55d566c07115b43ee13b71cfb9 /include/net/sch_generic.h | |
| parent | i40e/i40evf: Revert "i40e/i40evf: bump tail only in multiples of 8" (diff) | |
| download | kernel-qcow2-linux-384c181e3780ddc45e70483e29d84495b484730d.tar.gz kernel-qcow2-linux-384c181e3780ddc45e70483e29d84495b484730d.tar.xz kernel-qcow2-linux-384c181e3780ddc45e70483e29d84495b484730d.zip | |
net: sched: Identify hardware traffic classes using classid
This patch offloads the classid to hardware and uses the classid
reserved in the range :ffe0 - :ffef to identify hardware traffic
classes reported via dev->num_tc.
tcf_result structure contains the class ID of the class to which
the packet belongs and is offloaded to hardware via flower filter.
A new helper function is introduced to represent HW traffic
classes 0 through 15 using the reserved classid values :ffe0 - :ffef.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'include/net/sch_generic.h')
| -rw-r--r-- | include/net/sch_generic.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 07c179dab478..c23e938f5b19 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -411,6 +411,13 @@ qdisc_class_find(const struct Qdisc_class_hash *hash, u32 id) return NULL; } +static inline int tc_classid_to_hwtc(struct net_device *dev, u32 classid) +{ + u32 hwtc = TC_H_MIN(classid) - TC_H_MIN_PRIORITY; + + return (hwtc < netdev_get_num_tc(dev)) ? hwtc : -EINVAL; +} + int qdisc_class_hash_init(struct Qdisc_class_hash *); void qdisc_class_hash_insert(struct Qdisc_class_hash *, struct Qdisc_class_common *); |