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authoradrian <adrian@FreeBSD.org>2012-06-14 04:24:13 +0000
committeradrian <adrian@FreeBSD.org>2012-06-14 04:24:13 +0000
commita65a9620af9a7fc5136edbcf7488e62299d44e0c (patch)
tree5c1e0faa0f2e5e3aafc58e0c43da8fc87493fd63
parentb639382febadbf28291aa6d978f0dd8a9bd846ee (diff)
downloadFreeBSD-src-a65a9620af9a7fc5136edbcf7488e62299d44e0c.zip
FreeBSD-src-a65a9620af9a7fc5136edbcf7488e62299d44e0c.tar.gz
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.
-rw-r--r--sys/dev/ath/if_athvar.h15
1 files changed, 8 insertions, 7 deletions
diff --git a/sys/dev/ath/if_athvar.h b/sys/dev/ath/if_athvar.h
index d58c83f..2665c33 100644
--- a/sys/dev/ath/if_athvar.h
+++ b/sys/dev/ath/if_athvar.h
@@ -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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