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brcmfmac: reduce maximum station interface from 2 to 1 in RSDB mode

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The firmware state machines are not fully suitable for concurrent
station interface support, it may hit unexpected error if we have 2
different SSIDs and the roaming scenarios concurrently.
To avoid the bad user-experience if this is not fully validated, we
dis-allow user to create two concurrent station interfaces.

Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200604071835.3842-5-wright.feng@cypress.com
This commit is contained in:
Wright Feng 2020-06-04 02:18:34 -05:00 committed by Kalle Valo
parent eccbf46b15
commit ec3428bb89
1 changed files with 4 additions and 4 deletions
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8
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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@ -6801,7 +6801,7 @@ brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
* #AP <= 4, matching BI, channels = 1, 4 total
*
* no p2p and rsdb:
* #STA <= 2, #AP <= 2, channels = 2, 4 total
* #STA <= 1, #AP <= 2, channels = 2, 4 total
*
* p2p, no mchan, and mbss:
*
@ -6816,7 +6816,7 @@ brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
* #AP <= 4, matching BI, channels = 1, 4 total
*
* p2p, rsdb, and no mbss:
* #STA <= 2, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 2, AP <= 2,
* #STA <= 1, #P2P-DEV <= 1, #{P2P-CL, P2P-GO} <= 2, AP <= 2,
* channels = 2, 4 total
*/
static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
@ -6857,7 +6857,7 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
goto err;
combo[c].num_different_channels = 1 + (rsdb || (p2p && mchan));
c0_limits[i].max = 1 + rsdb;
c0_limits[i].max = 1;
c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION);
if (mon_flag) {
c0_limits[i].max = 1;
@ -6873,7 +6873,7 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
if (p2p && rsdb) {
c0_limits[i].max = 2;
c0_limits[i++].types = BIT(NL80211_IFTYPE_AP);
combo[c].max_interfaces = 5;
combo[c].max_interfaces = 4;
} else if (p2p) {
combo[c].max_interfaces = i;
} else if (rsdb) {