Author: adrian
Date: Thu Jun 14 04:24:13 2012
New Revision: 237046
URL: http://svn.freebsd.org/changeset/base/237046
Log:
Shrink ath_buf a little more:
* Resize some types. In particular, bfs_seqno can be uint16_t for now.
Previous work would assign the unassigned seqno a value of -1, which
I obviously can't do here.
* Remove bfs_pktdur. It was in the original code but nothing so far uses
it.
This gets ath_buf down (on my i386 system) to 292 bytes from 300 bytes.
I'd rather it be much, much smaller.
Modified:
head/sys/dev/ath/if_athvar.h
Modified: head/sys/dev/ath/if_athvar.h
==============================================================================
--- head/sys/dev/ath/if_athvar.h Thu Jun 14 04:18:56 2012
(r237045)
+++ head/sys/dev/ath/if_athvar.h Thu Jun 14 04:24:13 2012
(r237046)
@@ -211,15 +211,16 @@ struct ath_buf {
/* This state is kept to support software retries and aggregation */
struct {
- int bfs_seqno; /* sequence number of this packet */
- int bfs_retries; /* retry count */
- uint16_t bfs_tid; /* packet TID (or TID_MAX for no QoS) */
- uint16_t bfs_pri; /* packet AC priority */
- struct ath_txq *bfs_txq; /* eventual dest hardware TXQ */
- uint16_t bfs_pktdur; /* packet duration (at current rate?) */
- uint16_t bfs_nframes; /* number of frames in aggregate */
+ uint16_t bfs_seqno; /* sequence number of this packet */
uint16_t bfs_ndelim; /* number of delims for padding */
+ uint8_t bfs_retries; /* retry count */
+ uint8_t bfs_tid; /* packet TID (or TID_MAX for no QoS) */
+ uint8_t bfs_nframes; /* number of frames in aggregate */
+ uint8_t bfs_pri; /* packet AC priority */
+
+ struct ath_txq *bfs_txq; /* eventual dest hardware TXQ */
+
u_int32_t bfs_aggr:1, /* part of aggregate? */
bfs_aggrburst:1, /* part of aggregate burst? */
bfs_isretried:1, /* retried frame? */
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