diff options
| author | Jingjun Wu <jingjun_wu@realsil.com.cn> | 2012-03-02 20:52:14 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-02 09:52:34 -0700 |
| commit | 67fd437fd75067e8f5fd02a4cabdc2da3b65abeb (patch) | |
| tree | fe51dd54f65676cd82cf47713b587d835550b50f /drivers | |
| parent | a6ce707abde542b876d685e1f031453442dc2b13 (diff) | |
| download | lwn-67fd437fd75067e8f5fd02a4cabdc2da3b65abeb.tar.gz lwn-67fd437fd75067e8f5fd02a4cabdc2da3b65abeb.zip | |
rtlwifi: rtl8192ce: Fix loss of receive performance
commit a9b89e2567c743483e6354f64d7a7e3a8c101e9e upstream.
Driver rtl8192ce when used with the RTL8188CE device would start at about
20 Mbps on a 54 Mbps connection, but quickly drop to 1 Mbps. One of the
symptoms is that the AP would need to retransmit each packet 4 of 5 times
before the driver would acknowledge it. Recovery is possible only by
unloading and reloading the driver. This problem was reported at
https://bugzilla.redhat.com/show_bug.cgi?id=770207.
The problem is due to a missing update of the gain setting.
Signed-off-by: Jingjun Wu <jingjun_wu@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c index 4de6b788066e..a004ad75d568 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c @@ -524,6 +524,10 @@ void rtl92c_dm_write_dig(struct ieee80211_hw *hw) dm_digtable.cur_igvalue, dm_digtable.pre_igvalue, dm_digtable.backoff_val)); + dm_digtable.cur_igvalue += 2; + if (dm_digtable.cur_igvalue > 0x3f) + dm_digtable.cur_igvalue = 0x3f; + if (dm_digtable.pre_igvalue != dm_digtable.cur_igvalue) { rtl_set_bbreg(hw, ROFDM0_XAAGCCORE1, 0x7f, dm_digtable.cur_igvalue); |