diff options
| author | Daniel Kim <dekim@broadcom.com> | 2014-05-12 10:47:26 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-05-13 15:56:43 -0400 |
| commit | e09cc63dc368f26f3636afbbb38aba9c9b99b3a5 (patch) | |
| tree | 71420aaf2b972d7cbcb12da9584d7e6b318649a1 /drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c | |
| parent | 3eb6ed23571b81c14ebacb1735d73a1ab1c41898 (diff) | |
| download | op-kernel-dev-e09cc63dc368f26f3636afbbb38aba9c9b99b3a5.zip op-kernel-dev-e09cc63dc368f26f3636afbbb38aba9c9b99b3a5.tar.gz | |
brcmfmac: Give priority to 5GHz band in selecting target BSS
When a BSS provides both 2.4GHz and 5GHz bands, in many cases it
makes sense to choose 5GHz. Typically a 5GHz channel is less crowded
and has less interference and therefore its performance will be
better than a crowded 2.4 GHz channel. This patch configures
'join_pref' to induce firmware to preferably select 5GHz BSS.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Daniel Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c index 6a8983a..ed3e32c 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c @@ -32,6 +32,9 @@ #define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40 #define BRCMF_DEFAULT_PACKET_FILTER "100 0 0 0 0x01 0x00" +/* boost value for RSSI_DELTA in preferred join selection */ +#define BRCMF_JOIN_PREF_RSSI_BOOST 8 + bool brcmf_c_prec_enq(struct device *dev, struct pktq *q, struct sk_buff *pkt, int prec) @@ -246,6 +249,7 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp) { s8 eventmask[BRCMF_EVENTING_MASK_LEN]; u8 buf[BRCMF_DCMD_SMLEN]; + struct brcmf_join_pref_params join_pref_params[2]; char *ptr; s32 err; @@ -298,6 +302,20 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp) goto done; } + /* Setup join_pref to select target by RSSI(with boost on 5GHz) */ + join_pref_params[0].type = BRCMF_JOIN_PREF_RSSI_DELTA; + join_pref_params[0].len = 2; + join_pref_params[0].rssi_gain = BRCMF_JOIN_PREF_RSSI_BOOST; + join_pref_params[0].band = WLC_BAND_5G; + join_pref_params[1].type = BRCMF_JOIN_PREF_RSSI; + join_pref_params[1].len = 2; + join_pref_params[1].rssi_gain = 0; + join_pref_params[1].band = 0; + err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params, + sizeof(join_pref_params)); + if (err) + brcmf_err("Set join_pref error (%d)\n", err); + /* Setup event_msgs, enable E_IF */ err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN); |
