svn commit: r253829 - head/sys/dev/cxgbe

[Navdeep Parhar]

Author: np
Date: Wed Jul 31 05:12:51 2013
New Revision: 253829
URL: http://svnweb.freebsd.org/changeset/base/253829

Log:
  Display SGE tunables in the sysctl tree.
  
  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

Modified:
  head/sys/dev/cxgbe/adapter.h
  head/sys/dev/cxgbe/t4_main.c
  head/sys/dev/cxgbe/t4_sge.c

Modified: head/sys/dev/cxgbe/adapter.h
==============================================================================
--- head/sys/dev/cxgbe/adapter.h	Wed Jul 31 04:51:12 2013	(r253828)
+++ head/sys/dev/cxgbe/adapter.h	Wed Jul 31 05:12:51 2013	(r253829)
@@ -801,6 +801,8 @@ void t4_init_sge_cpl_handlers(struct ada
 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 *);

Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c	Wed Jul 31 04:51:12 2013	(r253828)
+++ head/sys/dev/cxgbe/t4_main.c	Wed Jul 31 05:12:51 2013	(r253829)
@@ -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.

Modified: head/sys/dev/cxgbe/t4_sge.c
==============================================================================
--- head/sys/dev/cxgbe/t4_sge.c	Wed Jul 31 04:51:12 2013	(r253828)
+++ head/sys/dev/cxgbe/t4_sge.c	Wed Jul 31 05:12:51 2013	(r253829)
@@ -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)
 {