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Display SGE tunables in the sysctl tree.

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dev.t5nex.0.fl_pktshift: payload DMA offset in rx buffer (bytes)
dev.t5nex.0.fl_pad: payload pad boundary (bytes)
dev.t5nex.0.spg_len: status page size (bytes)
dev.t5nex.0.cong_drop: congestion drop setting

Discussed with:	scottl
This commit is contained in:
np 2013-07-31 05:12:51 +00:00
parent f1fd54caa1
commit 4b06c1288c
3 changed files with 22 additions and 0 deletions
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2
sys/dev/cxgbe/adapter.h
View File

@ -801,6 +801,8 @@ void t4_init_sge_cpl_handlers(struct adapter *);
void t4_tweak_chip_settings(struct adapter *);
int t4_read_chip_settings(struct adapter *);
int t4_create_dma_tag(struct adapter *);
void t4_sge_sysctls(struct adapter *, struct sysctl_ctx_list *,
struct sysctl_oid_list *);
int t4_destroy_dma_tag(struct adapter *);
int t4_setup_adapter_queues(struct adapter *);
int t4_teardown_adapter_queues(struct adapter *);

2
sys/dev/cxgbe/t4_main.c
View File

@ -4223,6 +4223,8 @@ t4_sysctls(struct adapter *sc)
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nfilters", CTLFLAG_RD,
NULL, sc->tids.nftids, "number of filters");
t4_sge_sysctls(sc, ctx, children);
#ifdef SBUF_DRAIN
/*
* dev.t4nex.X.misc. Marked CTLFLAG_SKIP to avoid information overload.

18
sys/dev/cxgbe/t4_sge.c
View File

@ -498,6 +498,24 @@ t4_create_dma_tag(struct adapter *sc)
return (rc);
}
void
t4_sge_sysctls(struct adapter *sc, struct sysctl_ctx_list *ctx,
struct sysctl_oid_list *children)
{
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "fl_pktshift", CTLFLAG_RD,
NULL, fl_pktshift, "payload DMA offset in rx buffer (bytes)");
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "fl_pad", CTLFLAG_RD,
NULL, fl_pad, "payload pad boundary (bytes)");
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "spg_len", CTLFLAG_RD,
NULL, spg_len, "status page size (bytes)");
SYSCTL_ADD_INT(ctx, children, OID_AUTO, "cong_drop", CTLFLAG_RD,
NULL, cong_drop, "congestion drop setting");
}
int
t4_destroy_dma_tag(struct adapter *sc)
{