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Commit 20ad19d0 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

mac80211: fix RX aggregation timeouts 



The values are in TUs (1.024ms), not ms.

Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 8b1c814d

net/mac80211/ieee80211_i.h

+2 −0
Original line number Diff line number Diff line
@@ -57,6 +57,8 @@ struct ieee80211_local; 
 */

#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)



#define TU_TO_EXP_TIME(x)	(jiffies + usecs_to_jiffies((x) * 1024))



struct ieee80211_fragment_entry {

	unsigned long first_frag_time;

	unsigned int seq;

net/mac80211/mesh_hwmp.c

+0 −1
Original line number Diff line number Diff line
@@ -58,7 +58,6 @@ static inline u32 u32_field_get(u8 *preq_elem, int offset, bool ae) 
#define PERR_IE_DST_ADDR(x)	(x + 2)

#define PERR_IE_DST_DSN(x)	u32_field_get(x, 8, 0);



#define TU_TO_EXP_TIME(x) (jiffies + msecs_to_jiffies(x * 1024 / 1000))

#define MSEC_TO_TU(x) (x*1000/1024)

#define DSN_GT(x, y) ((long) (y) - (long) (x) < 0)

#define DSN_LT(x, y) ((long) (x) - (long) (y) < 0)

net/mac80211/rx.c

+6 −10
Original line number Diff line number Diff line
@@ -1673,11 +1673,9 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx) 
		start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4;



		/* reset session timer */

		if (tid_agg_rx->timeout) {

			unsigned long expires =

				jiffies + (tid_agg_rx->timeout / 1000) * HZ;

			mod_timer(&tid_agg_rx->session_timer, expires);

		}

		if (tid_agg_rx->timeout)

			mod_timer(&tid_agg_rx->session_timer,

				  TU_TO_EXP_TIME(tid_agg_rx->timeout));



		/* manage reordering buffer according to requested */

		/* sequence number */
@@ -2414,11 +2412,9 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local, 
	/* new un-ordered ampdu frame - process it */



	/* reset session timer */

	if (tid_agg_rx->timeout) {

		unsigned long expires =

			jiffies + (tid_agg_rx->timeout / 1000) * HZ;

		mod_timer(&tid_agg_rx->session_timer, expires);

	}

	if (tid_agg_rx->timeout)

		mod_timer(&tid_agg_rx->session_timer,

			  TU_TO_EXP_TIME(tid_agg_rx->timeout));



	/* if this mpdu is fragmented - terminate rx aggregation session */

	sc = le16_to_cpu(hdr->seq_ctrl);

net/mac80211/sta_info.h

+1 −1
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ struct tid_ampdu_tx { 
 * @stored_mpdu_num: number of MPDUs in reordering buffer

 * @ssn: Starting Sequence Number expected to be aggregated.

 * @buf_size: buffer size for incoming A-MPDUs

 * @timeout: reset timer value.

 * @timeout: reset timer value (in TUs).

 * @dialog_token: dialog token for aggregation session

 */

struct tid_ampdu_rx {