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net: sched: Identify hardware traffic classes using classid

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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>
This commit is contained in:
Amritha Nambiar
2017-10-27 02:35:34 -07:00
committed by Jeff Kirsher
parent aa250f1186
commit 384c181e37
3 changed files with 10 additions and 0 deletions
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2
net/sched/cls_flower.c
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@@ -241,6 +241,7 @@ static int fl_hw_replace_filter(struct tcf_proto *tp,
cls_flower.mask = mask;
cls_flower.key = &f->mkey;
cls_flower.exts = &f->exts;
cls_flower.classid = f->res.classid;
err = tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
&cls_flower, skip_sw);
@@ -266,6 +267,7 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
cls_flower.command = TC_CLSFLOWER_STATS;
cls_flower.cookie = (unsigned long) f;
cls_flower.exts = &f->exts;
cls_flower.classid = f->res.classid;
tc_setup_cb_call(block, &f->exts, TC_SETUP_CLSFLOWER,
&cls_flower, false);