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Re: [RFC v1] mac80211: Add support for per station rx stats histogram

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Hi Johannes,

On Tue, Mar 08, 2016 at 09:07:31AM +0100, Johannes Berg wrote:
> On Mon, 2016-03-07 at 21:53 +0530, Mohammed Shafi Shajakhan wrote:
> > 
> > +#define IEEE80211_HT_MCS_NUM		32
> > +#define IEEE80211_VHT_MCS_NUM		10
> > +#define IEEE80211_BW_NUM		4
> > +#define IEEE80211_NSS_NUM		4
> > +#define IEEE80211_GI_NUM		2
> > +#define IEEE80211_RATE_TABLE_NUM	320
> > +#define IEEE80211_LEGACY_RATE_NUM	12
> 
> > +#ifdef CONFIG_MAC80211_DEBUG_PER_STA_RX_STATS
> > +	u64 rx_legacy_pkt[IEEE80211_LEGACY_RATE_NUM];
> > +	u64 rx_ht_pkt[IEEE80211_HT_MCS_NUM];
> > +	u64 rx_vht_pkt[IEEE80211_VHT_MCS_NUM];
> > +	u64 rx_bw_pkt[IEEE80211_BW_NUM];
> > +	u64 rx_nss_pkt[IEEE80211_NSS_NUM];
> > +	u64 rx_gi_pkt[IEEE80211_GI_NUM];
> > +	u64 rx_rate_pkt[IEEE80211_RATE_TABLE_NUM];
> > +	u64 rx_legacy_byte[IEEE80211_LEGACY_RATE_NUM];
> > +	u64 rx_ht_byte[IEEE80211_HT_MCS_NUM];
> > +	u64 rx_vht_byte[IEEE80211_VHT_MCS_NUM];
> > +	u64 rx_bw_byte[IEEE80211_BW_NUM];
> > +	u64 rx_nss_byte[IEEE80211_NSS_NUM];
> > +	u64 rx_gi_byte[IEEE80211_GI_NUM];
> > +	u64 rx_rate_byte[IEEE80211_RATE_TABLE_NUM];
> > +#endif
> 
> Do you know how much data this is?!
> 
> Felix is going to kill both of us if I apply it.

[shafi] :-(

> 
> Please look at reviving my rate-statistics patch and do the remaining
> work in userspace:
> 
> http://thread.gmane.org/gmane.linux.kernel.wireless.general/133172
>

[shafi] thank you, I will check this out.

regards,
shafi
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