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net80211: improve media information for VHT5GHZ

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Improve ieee80211_media_setup(), media2mode(), and
ieee80211_rate2media() for VHT5GHZ at least.

Reviewed by:	adrian, gnn
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC (d/b/a "Netgate")
Differential Revision:	https://reviews.freebsd.org/D26089
This commit is contained in:
Bjoern A. Zeeb 2020-08-23 21:42:23 +00:00
parent 30fdd33ca3
commit 8f32e493cc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=364553
1 changed files with 39 additions and 3 deletions
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42
sys/net80211/ieee80211.c
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@ -1920,12 +1920,18 @@ ieee80211_media_setup(struct ieee80211com *ic,
/*
* Add VHT media.
* XXX-BZ skip "VHT_2GHZ" for now.
*/
for (; mode <= IEEE80211_MODE_VHT_5GHZ; mode++) {
for (mode = IEEE80211_MODE_VHT_5GHZ; mode <= IEEE80211_MODE_VHT_5GHZ;
mode++) {
if (isclr(ic->ic_modecaps, mode))
continue;
addmedia(media, caps, addsta, mode, IFM_AUTO);
addmedia(media, caps, addsta, mode, IFM_IEEE80211_VHT);
}
if (isset(ic->ic_modecaps, IEEE80211_MODE_VHT_5GHZ)) {
addmedia(media, caps, addsta,
IEEE80211_MODE_AUTO, IFM_IEEE80211_VHT);
/* XXX TODO: VHT maxrate */
}
@ -2044,6 +2050,12 @@ media2mode(const struct ifmedia_entry *ime, uint32_t flags, uint16_t *mode)
case IFM_IEEE80211_11NG:
*mode = IEEE80211_MODE_11NG;
break;
case IFM_IEEE80211_VHT2G:
*mode = IEEE80211_MODE_VHT_2GHZ;
break;
case IFM_IEEE80211_VHT5G:
*mode = IEEE80211_MODE_VHT_5GHZ;
break;
case IFM_AUTO:
*mode = IEEE80211_MODE_AUTO;
break;
@ -2387,12 +2399,36 @@ ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode m
{ 75, IFM_IEEE80211_MCS },
{ 76, IFM_IEEE80211_MCS },
};
static const struct ratemedia vhtrates[] = {
{ 0, IFM_IEEE80211_VHT },
{ 1, IFM_IEEE80211_VHT },
{ 2, IFM_IEEE80211_VHT },
{ 3, IFM_IEEE80211_VHT },
{ 4, IFM_IEEE80211_VHT },
{ 5, IFM_IEEE80211_VHT },
{ 6, IFM_IEEE80211_VHT },
{ 7, IFM_IEEE80211_VHT },
{ 8, IFM_IEEE80211_VHT }, /* Optional. */
{ 9, IFM_IEEE80211_VHT }, /* Optional. */
#if 0
/* Some QCA and BRCM seem to support this; offspec. */
{ 10, IFM_IEEE80211_VHT },
{ 11, IFM_IEEE80211_VHT },
#endif
};
int m;
/*
* Check 11n rates first for match as an MCS.
* Check 11ac/11n rates first for match as an MCS.
*/
if (mode == IEEE80211_MODE_11NA) {
if (mode == IEEE80211_MODE_VHT_5GHZ) {
if (rate & IFM_IEEE80211_VHT) {
rate &= ~IFM_IEEE80211_VHT;
m = findmedia(vhtrates, nitems(vhtrates), rate);
if (m != IFM_AUTO)
return (m | IFM_IEEE80211_VHT);
}
} else if (mode == IEEE80211_MODE_11NA) {
if (rate & IEEE80211_RATE_MCS) {
rate &= ~IEEE80211_RATE_MCS;
m = findmedia(htrates, nitems(htrates), rate);