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Implement a sequential descriptor ID value and stuff it in the ath_buf.

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This will be used by the EDMA TX code to assign descriptor IDs in order
to provide some debugging.
This commit is contained in:
Adrian Chadd 2012-08-15 06:48:34 +00:00
parent e53470fee3
commit 85bf9bc3d5
2 changed files with 10 additions and 0 deletions
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8
sys/dev/ath/if_ath.c
View File

@ -2344,6 +2344,14 @@ _ath_getbuf_locked(struct ath_softc *sc, ath_buf_type_t btype)
bf->bf_comp = NULL; /* XXX again, just to be sure */
bzero(&bf->bf_state, sizeof(bf->bf_state));
/*
* Track the descriptor ID only if doing EDMA
*/
if (sc->sc_isedma) {
bf->bf_descid = sc->sc_txbuf_descid;
sc->sc_txbuf_descid++;
}
return bf;
}

2
sys/dev/ath/if_athvar.h
View File

@ -191,6 +191,7 @@ struct ath_buf {
int bf_nseg;
HAL_STATUS bf_rxstatus;
uint16_t bf_flags; /* status flags (below) */
uint16_t bf_descid; /* 16 bit descriptor ID */
struct ath_desc *bf_desc; /* virtual addr of desc */
struct ath_desc_status bf_status; /* tx/rx status */
bus_addr_t bf_daddr; /* physical addr of desc */
@ -576,6 +577,7 @@ struct ath_softc {
u_int sc_monpass; /* frames to pass in mon.mode */
struct ath_descdma sc_txdma; /* TX descriptors */
uint16_t sc_txbuf_descid;
ath_bufhead sc_txbuf; /* transmit buffer */
int sc_txbuf_cnt; /* how many buffers avail */
struct ath_descdma sc_txdma_mgmt; /* mgmt TX descriptors */