This is a note to let you know that I've just added the patch titled
rtlwifi: rtl8192ce: Fix loss of receive performance
to the 3.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtlwifi-rtl8192ce-fix-loss-of-receive-performance.patch
and it can be found in the queue-3.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From a9b89e2567c743483e6354f64d7a7e3a8c101e9e Mon Sep 17 00:00:00 2001
From: Jingjun Wu <[email protected]>
Date: Fri, 2 Mar 2012 20:52:14 -0600
Subject: rtlwifi: rtl8192ce: Fix loss of receive performance
From: Jingjun Wu <[email protected]>
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 <[email protected]>
Signed-off-by: Larry Finger <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c | 4 ++++
1 file changed, 4 insertions(+)
--- 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 ieee8021
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);
Patches currently in stable-queue which might be from [email protected]
are
queue-3.3/rtlwifi-rtl8192ce-fix-loss-of-receive-performance.patch
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