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Load tunable from loader.conf(5) instead of device.hints(5).

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This commit is contained in:
Pyun YongHyeon 2010-08-21 23:13:16 +00:00
parent 21022fe7e9
commit 7e32f79a44
1 changed files with 6 additions and 3 deletions
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9
sys/dev/bge/if_bge.c
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@ -4898,6 +4898,8 @@ bge_add_sysctls(struct bge_softc *sc)
struct sysctl_ctx_list *ctx;
struct sysctl_oid_list *children, *schildren;
struct sysctl_oid *tree;
char tn[32];
int unit;
ctx = device_get_sysctl_ctx(sc->bge_dev);
children = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->bge_dev));
@ -4917,6 +4919,7 @@ bge_add_sysctls(struct bge_softc *sc)
#endif
unit = device_get_unit(sc->bge_dev);
/*
* A common design characteristic for many Broadcom client controllers
* is that they only support a single outstanding DMA read operation
@ -4929,13 +4932,13 @@ bge_add_sysctls(struct bge_softc *sc)
* performance is about 850Mbps. However forcing coalescing mbufs
* consumes a lot of CPU cycles, so leave it off by default.
*/
sc->bge_forced_collapse = 0;
snprintf(tn, sizeof(tn), "dev.bge.%d.forced_collapse", unit);
TUNABLE_INT_FETCH(tn, &sc->bge_forced_collapse);
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "forced_collapse",
CTLFLAG_RW, &sc->bge_forced_collapse, 0,
"Number of fragmented TX buffers of a frame allowed before "
"forced collapsing");
resource_int_value(device_get_name(sc->bge_dev),
device_get_unit(sc->bge_dev), "forced_collapse",
&sc->bge_forced_collapse);
if (BGE_IS_5705_PLUS(sc))
return;