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Fix long standing bge_sysctl_debug_info() issues.

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o Protect bge(4) status block access and register dump with driver lock.
 o Add missing bus_dmamap_sync() before dumping status block.
 o Use minimum status block size, 32 bytes, for status block dump on most
   controllers except BCM5700 AX/BX.
While I'm here, make the handler show 5717 Plus in hardware flags.
This commit is contained in:
Pyun YongHyeon 2011-10-26 01:03:53 +00:00
parent d79ac7a74f
commit 28276ad648
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=226770
1 changed files with 16 additions and 7 deletions
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23
sys/dev/bge/if_bge.c
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@ -5797,8 +5797,7 @@ bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS)
{
struct bge_softc *sc;
uint16_t *sbdata;
int error;
int result;
int error, result, sbsz;
int i, j;
result = -1;
@ -5809,14 +5808,21 @@ bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS)
if (result == 1) {
sc = (struct bge_softc *)arg1;
if (sc->bge_asicrev == BGE_ASICREV_BCM5700 &&
sc->bge_chipid != BGE_CHIPID_BCM5700_C0)
sbsz = BGE_STATUS_BLK_SZ;
else
sbsz = 32;
sbdata = (uint16_t *)sc->bge_ldata.bge_status_block;
printf("Status Block:\n");
for (i = 0x0; i < (BGE_STATUS_BLK_SZ / 4); ) {
BGE_LOCK(sc);
bus_dmamap_sync(sc->bge_cdata.bge_status_tag,
sc->bge_cdata.bge_status_map,
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
for (i = 0x0; i < sbsz / sizeof(uint16_t); ) {
printf("%06x:", i);
for (j = 0; j < 8; j++) {
printf(" %04x", sbdata[i]);
i += 4;
}
for (j = 0; j < 8; j++)
printf(" %04x", sbdata[i++]);
printf("\n");
}
@ -5829,8 +5835,11 @@ bge_sysctl_debug_info(SYSCTL_HANDLER_ARGS)
}
printf("\n");
}
BGE_UNLOCK(sc);
printf("Hardware Flags:\n");
if (BGE_IS_5717_PLUS(sc))
printf(" - 5717 Plus\n");
if (BGE_IS_5755_PLUS(sc))
printf(" - 5755 Plus\n");
if (BGE_IS_575X_PLUS(sc))