netdev - [patch iproute2] iplink: add support for num[tr]xqueues

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Date:	Fri, 20 Jul 2012 14:29:12 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, edumazet@...gle.com, shemminger@...tta.com
Subject: [patch iproute2] iplink: add support for num[tr]xqueues

Signed-off-by: Jiri Pirko <jiri@...nulli.us>
---
 include/linux/if_link.h |    2 ++
 ip/iplink.c             |   20 ++++++++++++++++++++
 man/man8/ip-link.8.in   |   13 +++++++++++++
 3 files changed, 35 insertions(+)

diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 00e5868..46f03db 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -140,6 +140,8 @@ enum {
 	IFLA_EXT_MASK,		/* Extended info mask, VFs, etc */
 	IFLA_PROMISCUITY,	/* Promiscuity count: > 0 means acts PROMISC */
 #define IFLA_PROMISCUITY IFLA_PROMISCUITY
+	IFLA_NUM_TX_QUEUES,
+	IFLA_NUM_RX_QUEUES,
 	__IFLA_MAX
 };
 
diff --git a/ip/iplink.c b/ip/iplink.c
index 679091e..0baa128 100644
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -48,6 +48,8 @@ void iplink_usage(void)
 		fprintf(stderr, "                   [ address LLADDR ]\n");
 		fprintf(stderr, "                   [ broadcast LLADDR ]\n");
 		fprintf(stderr, "                   [ mtu MTU ]\n");
+		fprintf(stderr, "                   [ numtxqueues QUEUE_COUNT ]\n");
+		fprintf(stderr, "                   [ numrxqueues QUEUE_COUNT ]\n");
 		fprintf(stderr, "                   type TYPE [ ARGS ]\n");
 		fprintf(stderr, "       ip link delete DEV type TYPE [ ARGS ]\n");
 		fprintf(stderr, "\n");
@@ -279,6 +281,8 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req,
 	int mtu = -1;
 	int netns = -1;
 	int vf = -1;
+	int numtxqueues = -1;
+	int numrxqueues = -1;
 
 	*group = -1;
 	ret = argc;
@@ -445,6 +449,22 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req,
 				invarg("Invalid operstate\n", *argv);
 
 			addattr8(&req->n, sizeof(*req), IFLA_OPERSTATE, state);
+		} else if (strcmp(*argv, "numtxqueues") == 0) {
+			NEXT_ARG();
+			if (numtxqueues != -1)
+				duparg("numtxqueues", *argv);
+			if (get_integer(&numtxqueues, *argv, 0))
+				invarg("Invalid \"numtxqueues\" value\n", *argv);
+			addattr_l(&req->n, sizeof(*req), IFLA_NUM_TX_QUEUES,
+				  &numtxqueues, 4);
+		} else if (strcmp(*argv, "numrxqueues") == 0) {
+			NEXT_ARG();
+			if (numrxqueues != -1)
+				duparg("numrxqueues", *argv);
+			if (get_integer(&numrxqueues, *argv, 0))
+				invarg("Invalid \"numrxqueues\" value\n", *argv);
+			addattr_l(&req->n, sizeof(*req), IFLA_NUM_RX_QUEUES,
+				  &numrxqueues, 4);
 		} else {
 			if (strcmp(*argv, "dev") == 0) {
 				NEXT_ARG();
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in
index 9386cc6..8a24e51 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -40,6 +40,11 @@ ip-link \- network device configuration
 .RB "[ " mtu
 .IR MTU " ]"
 .br
+.RB "[ " numtxqueues
+.IR QUEUE_COUNT " ]"
+.RB "[ " numrxqueues
+.IR QUEUE_COUNT " ]"
+.br
 .BR type " TYPE"
 .RI "[ " ARGS " ]"
 
@@ -156,6 +161,14 @@ Link types:
 - Ethernet Bridge device
 .in -8
 
+.TP
+.BI numtxqueues " QUEUE_COUNT "
+specifies the number of transmit queues for new device.
+
+.TP
+.BI numrxqueues " QUEUE_COUNT "
+specifies the number of receive queues for new device.
+
 .SS ip link delete - delete virtual link
 .I DEVICE
 specifies the virtual  device to act operate on.
-- 
1.7.10.4

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