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Revision b837913fc2d9061bf9b8c0dd6bf2d24e2f98b84a authored by jacek.tomaka@poczta.fm on 23 April 2018, 16:14:25 UTC, committed by Thomas Gleixner on 26 April 2018, 19:42:44 UTC 
x86/cpu/intel: Add missing TLB cpuid values
 
Make kernel print the correct number of TLB entries on Intel Xeon Phi 7210
(and others)

Before:
[ 0.320005] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
After:
[ 0.320005] Last level dTLB entries: 4KB 256, 2MB 128, 4MB 128, 1GB 16

The entries do exist in the official Intel SMD but the type column there is
incorrect (states "Cache" where it should read "TLB"), but the entries for
the values 0x6B, 0x6C and 0x6D are correctly described as 'Data TLB'.

Signed-off-by: Jacek Tomaka <jacek.tomaka@poczta.fm>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20180423161425.24366-1-jacekt@dugeo.com
1 parent da6fa7e
Raw File
act_meta_skbtcindex.c 
/*
 * net/sched/act_meta_tc_index.c IFE skb->tc_index metadata module
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 * copyright Jamal Hadi Salim (2016)
 *
*/

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
#include <linux/module.h>
#include <linux/init.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <uapi/linux/tc_act/tc_ife.h>
#include <net/tc_act/tc_ife.h>

static int skbtcindex_encode(struct sk_buff *skb, void *skbdata,
			     struct tcf_meta_info *e)
{
	u32 ifetc_index = skb->tc_index;

	return ife_encode_meta_u16(ifetc_index, skbdata, e);
}

static int skbtcindex_decode(struct sk_buff *skb, void *data, u16 len)
{
	u16 ifetc_index = *(u16 *)data;

	skb->tc_index = ntohs(ifetc_index);
	return 0;
}

static int skbtcindex_check(struct sk_buff *skb, struct tcf_meta_info *e)
{
	return ife_check_meta_u16(skb->tc_index, e);
}

static struct tcf_meta_ops ife_skbtcindex_ops = {
	.metaid = IFE_META_TCINDEX,
	.metatype = NLA_U16,
	.name = "tc_index",
	.synopsis = "skb tc_index 16 bit metadata",
	.check_presence = skbtcindex_check,
	.encode = skbtcindex_encode,
	.decode = skbtcindex_decode,
	.get = ife_get_meta_u16,
	.alloc = ife_alloc_meta_u16,
	.release = ife_release_meta_gen,
	.validate = ife_validate_meta_u16,
	.owner = THIS_MODULE,
};

static int __init ifetc_index_init_module(void)
{
	return register_ife_op(&ife_skbtcindex_ops);
}

static void __exit ifetc_index_cleanup_module(void)
{
	unregister_ife_op(&ife_skbtcindex_ops);
}

module_init(ifetc_index_init_module);
module_exit(ifetc_index_cleanup_module);

MODULE_AUTHOR("Jamal Hadi Salim(2016)");
MODULE_DESCRIPTION("Inter-FE skb tc_index metadata module");
MODULE_LICENSE("GPL");
MODULE_ALIAS_IFE_META("tcindex");
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