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Shrink ath_buf a little more:

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* 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.
This commit is contained in:
adrian 2012-06-14 04:24:13 +00:00
parent b639382feb
commit a65a9620af
1 changed files with 8 additions and 7 deletions
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15
sys/dev/ath/if_athvar.h
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@ -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? */