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* [PATCH] infiniband-diags/ibportstate.c: Changes for extended link speeds
@ 2011-08-16  9:14 Hal Rosenstock
       [not found] ` <4E4A34FF.2010400-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
  0 siblings, 1 reply; 2+ messages in thread
From: Hal Rosenstock @ 2011-08-16  9:14 UTC (permalink / raw)
  To: Ira Weiny; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org


Signed-off-by: Hal Rosenstock <hal-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
diff --git a/src/ibportstate.c b/src/ibportstate.c
index 1f0f42e..f7ad37f 100644
--- a/src/ibportstate.c
+++ b/src/ibportstate.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2004-2009 Voltaire Inc.  All rights reserved.
- * Copyright (c) 2011 Mellanox Technologies LTD.  All rights reserved.
+ * Copyright (c) 2010,2011 Mellanox Technologies LTD.  All rights reserved.
  *
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
@@ -53,6 +53,7 @@ enum port_ops {
 	RESET,
 	DISABLE,
 	SPEED,
+	ESPEED,
 	WIDTH,
 	DOWN,
 	ARM,
@@ -66,6 +67,7 @@ enum port_ops {
 
 struct ibmad_port *srcport;
 int speed = 0; /* no state change */
+int espeed = 0; /* no state change */
 int width = 0; /* no state change */
 int lid;
 int smlid;
@@ -83,6 +85,7 @@ struct {
 	{"reset", NULL, 0},	/* RESET */
 	{"disable", NULL, 0},	/* DISABLE */
 	{"speed", &speed, 0},	/* SPEED */
+	{"espeed", &espeed, 0},	/* EXTENDED SPEED */
 	{"width", &width, 0},	/* WIDTH */
 	{"down", NULL, 0},	/* DOWN */
 	{"arm", NULL, 0},	/* ARM */
@@ -99,7 +102,7 @@ struct {
 /*******************************************/
 
 /*
- * Return 1 if port is a switch, else zero.
+ * Return 1 if node is a switch, else zero.
  */
 static int get_node_info(ib_portid_t * dest, uint8_t * data)
 {
@@ -115,15 +118,30 @@ static int get_node_info(ib_portid_t * dest, uint8_t * data)
 		return 0;
 }
 
-static void get_port_info(ib_portid_t * dest, uint8_t * data, int portnum)
+static int get_port_info(ib_portid_t * dest, uint8_t * data, int portnum,
+			 int is_switch)
 {
+	uint8_t smp[IB_SMP_DATA_SIZE];
+	uint8_t *info;
+	int cap_mask;
+
+	if (is_switch) {
+		if (!smp_query_via(smp, dest, IB_ATTR_PORT_INFO, 0, 0, srcport))
+			IBERROR("smp query port 0 portinfo failed");
+		info = smp;
+	} else
+		info = data;
+
 	if (!smp_query_via(data, dest, IB_ATTR_PORT_INFO, portnum, 0, srcport))
 		IBERROR("smp query portinfo failed");
+	cap_mask = mad_get_field(info, 0, IB_PORT_CAPMASK_F);
+	return (cap_mask & IB_PORT_CAP_HAS_EXT_SPEEDS);
 }
 
-static void show_port_info(ib_portid_t * dest, uint8_t * data, int portnum)
+static void show_port_info(ib_portid_t * dest, uint8_t * data, int portnum,
+			   int espeed_cap)
 {
-	char buf[2048];
+	char buf[2300];
 	char val[64];
 
 	mad_dump_portstates(buf, sizeof buf, data, sizeof *data);
@@ -163,17 +181,35 @@ static void show_port_info(ib_portid_t * dest, uint8_t * data, int portnum)
 	mad_dump_field(IB_PORT_LINK_SPEED_ACTIVE_F, buf + strlen(buf),
 		       sizeof buf - strlen(buf), val);
 	sprintf(buf + strlen(buf), "%s", "\n");
+	if (espeed_cap) {
+		mad_decode_field(data, IB_PORT_LINK_SPEED_EXT_SUPPORTED_F, val);
+		mad_dump_field(IB_PORT_LINK_SPEED_EXT_SUPPORTED_F,
+			       buf + strlen(buf), sizeof buf - strlen(buf),
+			       val);
+		sprintf(buf + strlen(buf), "%s", "\n");
+		mad_decode_field(data, IB_PORT_LINK_SPEED_EXT_ENABLED_F, val);
+		mad_dump_field(IB_PORT_LINK_SPEED_EXT_ENABLED_F,
+			       buf + strlen(buf), sizeof buf - strlen(buf),
+			       val);
+		sprintf(buf + strlen(buf), "%s", "\n");
+		mad_decode_field(data, IB_PORT_LINK_SPEED_EXT_ACTIVE_F, val);
+		mad_dump_field(IB_PORT_LINK_SPEED_EXT_ACTIVE_F,
+			       buf + strlen(buf), sizeof buf - strlen(buf),
+			       val);
+		sprintf(buf + strlen(buf), "%s", "\n");
+	}
 
 	printf("# Port info: %s port %d\n%s", portid2str(dest), portnum, buf);
 }
 
-static void set_port_info(ib_portid_t * dest, uint8_t * data, int portnum)
+static void set_port_info(ib_portid_t * dest, uint8_t * data, int portnum,
+			  int espeed_cap)
 {
 	if (!smp_set_via(data, dest, IB_ATTR_PORT_INFO, portnum, 0, srcport))
 		IBERROR("smp set portinfo failed");
 
 	printf("\nAfter PortInfo set:\n");
-	show_port_info(dest, data, portnum);
+	show_port_info(dest, data, portnum, espeed_cap);
 }
 
 static int get_link_width(int lwe, int lws)
@@ -192,6 +228,14 @@ static int get_link_speed(int lse, int lss)
 		return lse;
 }
 
+static int get_link_speed_ext(int lsee, int lses)
+{
+	if (lsee == 31)
+		return lses;
+	else
+		return lsee;
+}
+
 static void validate_width(int width, int peerwidth, int lwa)
 {
 	if ((width & peerwidth & 0x8)) {
@@ -222,7 +266,7 @@ static void validate_speed(int speed, int peerspeed, int lsa)
 	if ((speed & peerspeed & 0x4)) {
 		if (lsa != 4)
 			IBWARN
-			    ("Peer ports operating at active speed %d rather than  4 (10.0 Gbps)",
+			    ("Peer ports operating at active speed %d rather than 4 (10.0 Gbps)",
 			     lsa);
 	} else if ((speed & peerspeed & 0x2)) {
 		if (lsa != 2)
@@ -237,17 +281,32 @@ static void validate_speed(int speed, int peerspeed, int lsa)
 	}
 }
 
+static void validate_extended_speed(int espeed, int peerespeed, int lsea)
+{
+	if ((espeed & peerespeed & 0x2)) {
+		if (lsea != 2)
+			IBWARN
+			    ("Peer ports operating at active extended speed %d rather than 2 (25.78125 Gbps)",
+			     lsea);
+	} else if ((espeed & peerespeed & 0x1)) {
+		if (lsea != 1)
+			IBWARN
+			    ("Peer ports operating at active extended speed %d rather than 1 (14.0625 Gbps)",
+			     lsea);
+	}
+}
+
 int main(int argc, char **argv)
 {
 	int mgmt_classes[3] =
 	    { IB_SMI_CLASS, IB_SMI_DIRECT_CLASS, IB_SA_CLASS };
 	ib_portid_t portid = { 0 };
 	int port_op = -1;
-	int is_switch;
-	int state, physstate, lwe, lws, lwa, lse, lss, lsa;
+	int is_switch, is_peer_switch, espeed_cap, peer_espeed_cap;
+	int state, physstate, lwe, lws, lwa, lse, lss, lsa, lsee, lses, lsea;
 	int peerlocalportnum, peerlwe, peerlws, peerlwa, peerlse, peerlss,
-	    peerlsa;
-	int peerwidth, peerspeed;
+	    peerlsa, peerlsee, peerlses, peerlsea;
+	int peerwidth, peerspeed, peerespeed;
 	uint8_t data[IB_SMP_DATA_SIZE] = { 0 };
 	ib_portid_t peerportid = { 0 };
 	int portnum = 0;
@@ -316,6 +375,10 @@ int main(int argc, char **argv)
 				if (val < 0 || val > 15)
 					IBERROR("invalid speed value %ld", val);
 				break;
+			case ESPEED:
+				if (val < 0 || val > 31)
+					IBERROR("invalid extended speed value %ld", val);
+				break;
 			case WIDTH:
 				if (val < 0 || (val > 15 && val != 255))
 					IBERROR("invalid width value %ld", val);
@@ -357,9 +420,8 @@ int main(int argc, char **argv)
 		printf("Initial %s PortInfo:\n", is_switch ? "Switch" : "CA");
 	else
 		printf("%s PortInfo:\n", is_switch ? "Switch" : "CA");
-	memset(data, 0, sizeof(data));
-	get_port_info(&portid, data, portnum);
-	show_port_info(&portid, data, portnum);
+	espeed_cap = get_port_info(&portid, data, portnum, is_switch);
+	show_port_info(&portid, data, portnum, espeed_cap);
 
 	if (port_op != QUERY || changed) {
 		/*
@@ -397,8 +459,9 @@ int main(int argc, char **argv)
 			break;
 		}
 
-		/* always set enabled speed/width - defaults to NOP */
+		/* always set enabled speeds/width - defaults to NOP */
 		mad_set_field(data, 0, IB_PORT_LINK_SPEED_ENABLED_F, speed);
+		mad_set_field(data, 0, IB_PORT_LINK_SPEED_EXT_ENABLED_F, espeed);
 		mad_set_field(data, 0, IB_PORT_LINK_WIDTH_ENABLED_F, width);
 
 		if (port_args[VLS].set)
@@ -412,7 +475,7 @@ int main(int argc, char **argv)
 		if (port_args[LMC].set)
 			mad_set_field(data, 0, IB_PORT_LMC_F, lmc);
 
-		set_port_info(&portid, data, portnum);
+		set_port_info(&portid, data, portnum, is_switch);
 
 	} else if (is_switch && portnum) {
 		/* Now, make sure PortState is Active */
@@ -432,6 +495,17 @@ int main(int argc, char **argv)
 					 &lsa);
 			mad_decode_field(data, IB_PORT_LINK_SPEED_ENABLED_F,
 					 &lse);
+			if (espeed_cap) {
+				mad_decode_field(data,
+						 IB_PORT_LINK_SPEED_EXT_SUPPORTED_F,
+						 &lses);
+				mad_decode_field(data,
+						 IB_PORT_LINK_SPEED_EXT_ACTIVE_F,
+						 &lsea);
+				mad_decode_field(data,
+						 IB_PORT_LINK_SPEED_EXT_ENABLED_F,
+						 &lsee);
+			}
 
 			/* Setup portid for peer port */
 			memcpy(&peerportid, &portid, sizeof(peerportid));
@@ -446,15 +520,18 @@ int main(int argc, char **argv)
 			peerportid.drpath.drdlid = 0xffff;
 
 			/* Get peer port NodeInfo to obtain peer port number */
-			get_node_info(&peerportid, data);
+			is_peer_switch = get_node_info(&peerportid, data);
 
 			mad_decode_field(data, IB_NODE_LOCAL_PORT_F,
 					 &peerlocalportnum);
 
 			printf("Peer PortInfo:\n");
 			/* Get peer port characteristics */
-			get_port_info(&peerportid, data, peerlocalportnum);
-			show_port_info(&peerportid, data, peerlocalportnum);
+			peer_espeed_cap = get_port_info(&peerportid, data,
+							peerlocalportnum,
+							is_peer_switch);
+			show_port_info(&peerportid, data, peerlocalportnum,
+				       peer_espeed_cap);
 
 			mad_decode_field(data, IB_PORT_LINK_WIDTH_ENABLED_F,
 					 &peerlwe);
@@ -468,6 +545,17 @@ int main(int argc, char **argv)
 					 &peerlsa);
 			mad_decode_field(data, IB_PORT_LINK_SPEED_ENABLED_F,
 					 &peerlse);
+			if (peer_espeed_cap) {
+				mad_decode_field(data,
+						 IB_PORT_LINK_SPEED_EXT_SUPPORTED_F,
+						 &peerlses);
+				mad_decode_field(data,
+						 IB_PORT_LINK_SPEED_EXT_ACTIVE_F,
+						 &peerlsea);
+				mad_decode_field(data,
+						 IB_PORT_LINK_SPEED_EXT_ENABLED_F,
+						 &peerlsee);
+			}
 
 			/* Now validate peer port characteristics */
 			/* Examine Link Width */
@@ -475,10 +563,18 @@ int main(int argc, char **argv)
 			peerwidth = get_link_width(peerlwe, peerlws);
 			validate_width(width, peerwidth, lwa);
 
-			/* Examine Link Speed */
+			/* Examine Link Speeds */
 			speed = get_link_speed(lse, lss);
 			peerspeed = get_link_speed(peerlse, peerlss);
 			validate_speed(speed, peerspeed, lsa);
+
+			if (espeed_cap && peer_espeed_cap) {
+				espeed = get_link_speed_ext(lsee, lses);
+				peerespeed = get_link_speed_ext(peerlsee,
+								peerlses);
+				validate_extended_speed(espeed, peerespeed,
+							lsea);
+			}
 		}
 	}
 
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2011-08-16  9:14 [PATCH] infiniband-diags/ibportstate.c: Changes for extended link speeds Hal Rosenstock
     [not found] ` <4E4A34FF.2010400-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2011-08-18 18:22   ` Ira Weiny

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