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iwlwifi: mvm: BT Coex - enable per-AC BT priority

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We can now define the priority against BT per AC. This is
possible with a newer firmware that allows to define the
priority with 2 bits.
Note that this change is compatible with older firmware
since older firmware will simply ignore the new bit (11),
and we still set the old bit (12) in the same cases as
before.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach
2014-03-06 14:49:36 +02:00
parent ee7bea582e
commit b797e3fbab
4 changed files with 28 additions and 9 deletions
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22
drivers/net/wireless/iwlwifi/mvm/coex.c
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@@ -1208,16 +1208,30 @@ bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
}
u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
struct ieee80211_tx_info *info)
struct ieee80211_tx_info *info, u8 ac)
{
__le16 fc = hdr->frame_control;
if (info->band != IEEE80211_BAND_2GHZ)
return 0;
/* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */
if (info->band == IEEE80211_BAND_2GHZ &&
(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO ||
is_multicast_ether_addr(hdr->addr1) ||
ieee80211_is_back_req(fc) || ieee80211_is_mgmt(fc)))
ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) ||
ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc))
return 3;
switch (ac) {
case IEEE80211_AC_BE:
return 1;
case IEEE80211_AC_VO:
return 3;
case IEEE80211_AC_VI:
return 2;
default:
break;
}
return 0;
}