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Date:	Fri, 24 Jan 2014 12:46:08 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	stephen@...workplumber.org
Cc:	netdev@...r.kernel.org, roopa@...ulusnetworks.com,
	shm@...ulusnetworks.com, sfeldma@...ulusnetworks.com
Subject: Re: [PATCH iproute2] Add IFLA_SLAVE support.

Stephen, please note that this patch was replaced by following patchset:
[patch iproute2 net-next-for-3.13 0/2] iplink: add support for bonding slave
  [patch iproute2 net-next-for-3.13 1/2] introduce support for slave info data
  [patch iproute2 net-next-for-3.13 2/2] iplink: add support for bonding slave

Thanks.

Mon, Jan 20, 2014 at 11:25:05PM CET, sfeldma@...ulusnetworks.com wrote:
>Show slave details for link when slave has IFLA_SLAVE attributes, e.g.:
>
>ip -d link show eth4
>6: eth4: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond1 state UP mode DEFAULT group default qlen 1000
>    link/ether 00:02:00:00:04:03 brd ff:ff:ff:ff:ff:ff promiscuity 1
>    slave state ACTIVE mii_status UP link_failure_count 0 perm_hwaddr 00:02:00:00:04:03 queue_id 0 ad_aggregator_id 1
>---
> include/linux/if_link.h |   13 +++++++++
> ip/ipaddress.c          |   71 +++++++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 84 insertions(+)
>
>diff --git a/include/linux/if_link.h b/include/linux/if_link.h
>index 098be3d..7f956f6 100644
>--- a/include/linux/if_link.h
>+++ b/include/linux/if_link.h
>@@ -144,6 +144,7 @@ enum {
> 	IFLA_NUM_RX_QUEUES,
> 	IFLA_CARRIER,
> 	IFLA_PHYS_PORT_ID,
>+	IFLA_SLAVE,
> 	__IFLA_MAX
> };
> 
>@@ -366,6 +367,18 @@ enum {
> 
> #define IFLA_BOND_AD_INFO_MAX   (__IFLA_BOND_AD_INFO_MAX - 1)
> 
>+enum {
>+	IFLA_SLAVE_STATE,
>+	IFLA_SLAVE_MII_STATUS,
>+	IFLA_SLAVE_LINK_FAILURE_COUNT,
>+	IFLA_SLAVE_PERM_HWADDR,
>+	IFLA_SLAVE_QUEUE_ID,
>+	IFLA_SLAVE_AD_AGGREGATOR_ID,
>+	__IFLA_SLAVE_MAX,
>+};
>+
>+#define IFLA_SLAVE_MAX  (__IFLA_SLAVE_MAX - 1)
>+
> /* SR-IOV virtual function management section */
> 
> enum {
>diff --git a/ip/ipaddress.c b/ip/ipaddress.c
>index d02eaaf..a0d3ab8 100644
>--- a/ip/ipaddress.c
>+++ b/ip/ipaddress.c
>@@ -27,6 +27,7 @@
> 
> #include <linux/netdevice.h>
> #include <linux/if_arp.h>
>+#include <linux/if_bonding.h>
> #include <linux/sockios.h>
> 
> #include "rt_names.h"
>@@ -223,6 +224,73 @@ static void print_linktype(FILE *fp, struct rtattr *tb)
> 	}
> }
> 
>+static const char *slave_states[] = {
>+	[BOND_STATE_ACTIVE] = "ACTIVE",
>+	[BOND_STATE_BACKUP] = "BACKUP",
>+};
>+
>+static void print_slave_state(FILE *f, struct rtattr *tb)
>+{
>+	unsigned int state = rta_getattr_u8(tb);
>+
>+	if (state >= sizeof(slave_states) / sizeof(slave_states[0]))
>+		fprintf(f, "state %d ", state);
>+	else
>+		fprintf(f, "state %s ", slave_states[state]);
>+}
>+
>+static const char *slave_mii_status[] = {
>+	[BOND_LINK_UP] = "UP",
>+	[BOND_LINK_FAIL] = "GOING_DOWN",
>+	[BOND_LINK_DOWN] = "DOWN",
>+	[BOND_LINK_BACK] = "GOING_BACK",
>+};
>+
>+static void print_slave_mii_status(FILE *f, struct rtattr *tb)
>+{
>+	unsigned int status = rta_getattr_u8(tb);
>+
>+	if (status >= sizeof(slave_mii_status) / sizeof(slave_mii_status[0]))
>+		fprintf(f, "mii_status %d ", status);
>+	else
>+		fprintf(f, "mii_status %s ", slave_mii_status[status]);
>+}
>+
>+static void print_slave(FILE *fp, struct rtattr *tb)
>+{
>+	struct rtattr *slave[IFLA_SLAVE_MAX+1];
>+	SPRINT_BUF(b1);
>+
>+	parse_rtattr_nested(slave, IFLA_SLAVE_MAX, tb);
>+
>+	if (!slave[IFLA_SLAVE_STATE])
>+		return;
>+
>+	fprintf(fp, "%s    slave ", _SL_);
>+	print_slave_state(fp, slave[IFLA_SLAVE_STATE]);
>+
>+	if (slave[IFLA_SLAVE_MII_STATUS])
>+		print_slave_mii_status(fp, slave[IFLA_SLAVE_MII_STATUS]);
>+
>+	if (slave[IFLA_SLAVE_LINK_FAILURE_COUNT])
>+		fprintf(fp, "link_failure_count %d ",
>+			rta_getattr_u32(slave[IFLA_SLAVE_LINK_FAILURE_COUNT]));
>+
>+	if (slave[IFLA_SLAVE_PERM_HWADDR])
>+		fprintf(fp, "perm_hwaddr %s ",
>+			ll_addr_n2a(RTA_DATA(slave[IFLA_SLAVE_PERM_HWADDR]),
>+				    RTA_PAYLOAD(slave[IFLA_SLAVE_PERM_HWADDR]),
>+				    0, b1, sizeof(b1)));
>+
>+	if (slave[IFLA_SLAVE_QUEUE_ID])
>+		fprintf(fp, "queue_id %d ",
>+			rta_getattr_u16(slave[IFLA_SLAVE_QUEUE_ID]));
>+
>+	if (slave[IFLA_SLAVE_AD_AGGREGATOR_ID])
>+		fprintf(fp, "ad_aggregator_id %d ",
>+			rta_getattr_u16(slave[IFLA_SLAVE_AD_AGGREGATOR_ID]));
>+}
>+
> static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
> {
> 	struct ifla_vf_mac *vf_mac;
>@@ -516,6 +584,9 @@ int print_linkinfo(const struct sockaddr_nl *who,
> 			print_vfinfo(fp, i);
> 	}
> 
>+	if (do_link && tb[IFLA_SLAVE] && show_details)
>+		print_slave(fp, tb[IFLA_SLAVE]);
>+
> 	fprintf(fp, "\n");
> 	fflush(fp);
> 	return 0;
>
>--
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