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56 lines
2.0 KiB
Diff
56 lines
2.0 KiB
Diff
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From c92df3d93ad09f219e0728b39d40dc0a69d0760f Mon Sep 17 00:00:00 2001
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From: Vijayakumar Durai <vijayakumar.durai1@vivint.com>
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Date: Tue Feb 26 19:29:30 2019 +0530
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Subject: [PATCH] rt2x00: do not increment sequence number while
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re-transmitting
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Currently STA+AP re-transmitting the management frames with
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incremented sequence number if hardware is assigning the sequence.
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Fix is to assign the sequence number for Beacon by hardware
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and for other Management frames software will assign the
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sequence number
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Signed-off-by: Vijayakumar Durai <vijayakumar.durai1@vivint.com>
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---
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.../net/wireless/ralink/rt2x00/rt2x00queue.c | 26 +++++++++----------
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1 file changed, 12 insertions(+), 14 deletions(-)
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--- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
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@@ -207,22 +207,20 @@ static void rt2x00queue_create_tx_descri
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*/
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if (test_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags))
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__clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
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- else
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- /* H/W will generate sequence number */
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- return;
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+ else {
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+ /*
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+ * rt2800 has a beacon problem(beacon is sent with same sequence
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+ * number more than once)with software generated sequence number.
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+ * So for beacons,hardware will generate sequence number and for
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+ * other Management frames software will generate sequence number.
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+ */
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+ if (ieee80211_is_beacon(hdr->frame_control))
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+ return;
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+ else
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+ __clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
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+ }
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}
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- /*
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- * The hardware is not able to insert a sequence number. Assign a
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- * software generated one here.
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- *
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- * This is wrong because beacons are not getting sequence
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- * numbers assigned properly.
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- *
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- * A secondary problem exists for drivers that cannot toggle
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- * sequence counting per-frame, since those will override the
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- * sequence counter given by mac80211.
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- */
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if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
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seqno = atomic_add_return(0x10, &intf->seqno);
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else
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