netdev - Re: [PATCH net-next v5 2/3] rocker: remove swdev mode

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Message-ID: <20141209075542.GC1974@nanopsycho.orion>
Date:	Tue, 9 Dec 2014 08:55:42 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	roopa@...ulusnetworks.com
Cc:	sfeldma@...il.com, jhs@...atatu.com, bcrl@...ck.org, tgraf@...g.ch,
	john.fastabend@...il.com, stephen@...workplumber.org,
	linville@...driver.com, vyasevic@...hat.com,
	netdev@...r.kernel.org, davem@...emloft.net,
	shm@...ulusnetworks.com, gospo@...ulusnetworks.com
Subject: Re: [PATCH net-next v5 2/3] rocker: remove swdev mode

Mon, Dec 08, 2014 at 11:04:20PM CET, roopa@...ulusnetworks.com wrote:
>From: Roopa Prabhu <roopa@...ulusnetworks.com>
>
>Remove use of 'swdev' mode in rocker. rocker dev offloads
>can use the BRIDGE_FLAGS_SELF to indicate offload to hardware.
>
>Signed-off-by: Roopa Prabhu <roopa@...ulusnetworks.com>


Signed-off-by: Jiri Pirko <jiri@...nulli.us>



>---
> drivers/net/ethernet/rocker/rocker.c |   18 +-----------------
> net/core/rtnetlink.c                 |   10 ++++++++--
> 2 files changed, 9 insertions(+), 19 deletions(-)
>
>diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
>index fded127..a841f7a 100644
>--- a/drivers/net/ethernet/rocker/rocker.c
>+++ b/drivers/net/ethernet/rocker/rocker.c
>@@ -3700,27 +3700,11 @@ static int rocker_port_bridge_setlink(struct net_device *dev,
> {
> 	struct rocker_port *rocker_port = netdev_priv(dev);
> 	struct nlattr *protinfo;
>-	struct nlattr *afspec;
> 	struct nlattr *attr;
>-	u16 mode;
> 	int err;
> 
> 	protinfo = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg),
> 				   IFLA_PROTINFO);
>-	afspec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
>-
>-	if (afspec) {
>-		attr = nla_find_nested(afspec, IFLA_BRIDGE_MODE);
>-		if (attr) {
>-			if (nla_len(attr) < sizeof(mode))
>-				return -EINVAL;
>-
>-			mode = nla_get_u16(attr);
>-			if (mode != BRIDGE_MODE_SWDEV)
>-				return -EINVAL;
>-		}
>-	}
>-
> 	if (protinfo) {
> 		attr = nla_find_nested(protinfo, IFLA_BRPORT_LEARNING);
> 		if (attr) {
>@@ -3755,7 +3739,7 @@ static int rocker_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
> 				      u32 filter_mask)
> {
> 	struct rocker_port *rocker_port = netdev_priv(dev);
>-	u16 mode = BRIDGE_MODE_SWDEV;
>+	u16 mode = BRIDGE_MODE_UNDEF;
> 	u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
> 
> 	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
>diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
>index 61cb7e7..3863e3b 100644
>--- a/net/core/rtnetlink.c
>+++ b/net/core/rtnetlink.c
>@@ -2734,11 +2734,17 @@ int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
> 	if (!br_afspec)
> 		goto nla_put_failure;
> 
>-	if (nla_put_u16(skb, IFLA_BRIDGE_FLAGS, BRIDGE_FLAGS_SELF) ||
>-	    nla_put_u16(skb, IFLA_BRIDGE_MODE, mode)) {
>+	if (nla_put_u16(skb, IFLA_BRIDGE_FLAGS, BRIDGE_FLAGS_SELF)) {
> 		nla_nest_cancel(skb, br_afspec);
> 		goto nla_put_failure;
> 	}
>+
>+	if (mode != BRIDGE_MODE_UNDEF) {
>+		if (nla_put_u16(skb, IFLA_BRIDGE_MODE, mode)) {
>+			nla_nest_cancel(skb, br_afspec);
>+			goto nla_put_failure;
>+		}
>+	}
> 	nla_nest_end(skb, br_afspec);
> 
> 	protinfo = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED);
>-- 
>1.7.10.4
>
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