* [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max_size setting of slaves.
@ 2012-11-21 11:07 sarveshwar.bandi
2012-11-21 11:10 ` Bandi,Sarveshwar
2012-11-21 12:32 ` Ben Hutchings
0 siblings, 2 replies; 3+ messages in thread
From: sarveshwar.bandi @ 2012-11-21 11:07 UTC (permalink / raw)
To: davem; +Cc: netdev, Sarveshwar Bandi
From: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Patch sets the lowest non-zero gso_max_size value of the slaves during enslave
and detach.
Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
---
drivers/net/bonding/bond_main.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index b2530b0..5f19d16 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1198,6 +1198,31 @@ static void bond_attach_slave(struct bonding *bond, struct slave *new_slave)
bond->slave_cnt++;
}
+static void bond_set_gso_max_size(struct bonding *bond)
+{
+ struct slave *slave;
+ struct net_device *bond_dev = bond->dev;
+ unsigned int gso_max_size = 0;
+ bool reset_gso_size = true;
+ int i;
+
+ bond_for_each_slave(bond, slave, i) {
+ if (!slave->dev->gso_max_size)
+ continue;
+
+ reset_gso_size = false;
+
+ if (!gso_max_size ||
+ slave->dev->gso_max_size < gso_max_size)
+ gso_max_size = slave->dev->gso_max_size;
+ }
+
+ if (gso_max_size && gso_max_size < bond_dev->gso_max_size)
+ netif_set_gso_max_size(bond_dev, gso_max_size);
+ else if (reset_gso_size)
+ netif_set_gso_max_size(bond_dev, 0);
+}
+
/*
* This function detaches the slave from the list.
* WARNING: no check is made to verify if the slave effectively
@@ -1403,6 +1428,8 @@ done:
flags = bond_dev->priv_flags & ~IFF_XMIT_DST_RELEASE;
bond_dev->priv_flags = flags | dst_release_flag;
+ bond_set_gso_max_size(bond);
+
read_unlock(&bond->lock);
netdev_change_features(bond_dev);
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* RE: [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max_size setting of slaves.
2012-11-21 11:07 [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max_size setting of slaves sarveshwar.bandi
@ 2012-11-21 11:10 ` Bandi,Sarveshwar
2012-11-21 12:32 ` Ben Hutchings
1 sibling, 0 replies; 3+ messages in thread
From: Bandi,Sarveshwar @ 2012-11-21 11:10 UTC (permalink / raw)
To: Bandi,Sarveshwar, davem; +Cc: netdev
Please ignore this patch. It is meant for bonding driver. Will resend patch.
-----Original Message-----
From: netdev-owner@vger.kernel.org [mailto:netdev-owner@vger.kernel.org] On Behalf Of sarveshwar.bandi@emulex.com
Sent: Wednesday, November 21, 2012 4:38 PM
To: davem@davemloft.net
Cc: netdev@vger.kernel.org; Bandi,Sarveshwar
Subject: [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max_size setting of slaves.
From: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Patch sets the lowest non-zero gso_max_size value of the slaves during enslave and detach.
Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
---
drivers/net/bonding/bond_main.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b2530b0..5f19d16 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1198,6 +1198,31 @@ static void bond_attach_slave(struct bonding *bond, struct slave *new_slave)
bond->slave_cnt++;
}
+static void bond_set_gso_max_size(struct bonding *bond) {
+ struct slave *slave;
+ struct net_device *bond_dev = bond->dev;
+ unsigned int gso_max_size = 0;
+ bool reset_gso_size = true;
+ int i;
+
+ bond_for_each_slave(bond, slave, i) {
+ if (!slave->dev->gso_max_size)
+ continue;
+
+ reset_gso_size = false;
+
+ if (!gso_max_size ||
+ slave->dev->gso_max_size < gso_max_size)
+ gso_max_size = slave->dev->gso_max_size;
+ }
+
+ if (gso_max_size && gso_max_size < bond_dev->gso_max_size)
+ netif_set_gso_max_size(bond_dev, gso_max_size);
+ else if (reset_gso_size)
+ netif_set_gso_max_size(bond_dev, 0);
+}
+
/*
* This function detaches the slave from the list.
* WARNING: no check is made to verify if the slave effectively @@ -1403,6 +1428,8 @@ done:
flags = bond_dev->priv_flags & ~IFF_XMIT_DST_RELEASE;
bond_dev->priv_flags = flags | dst_release_flag;
+ bond_set_gso_max_size(bond);
+
read_unlock(&bond->lock);
netdev_change_features(bond_dev);
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max_size setting of slaves.
2012-11-21 11:07 [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max_size setting of slaves sarveshwar.bandi
2012-11-21 11:10 ` Bandi,Sarveshwar
@ 2012-11-21 12:32 ` Ben Hutchings
1 sibling, 0 replies; 3+ messages in thread
From: Ben Hutchings @ 2012-11-21 12:32 UTC (permalink / raw)
To: sarveshwar.bandi; +Cc: davem, netdev
On Wed, 2012-11-21 at 16:37 +0530, sarveshwar.bandi@emulex.com wrote:
> From: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
>
> Patch sets the lowest non-zero gso_max_size value of the slaves during enslave
> and detach.
[...]
The same should be done for gso_max_segs, I think.
Ben.
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-11-21 12:32 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-11-21 11:07 [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max_size setting of slaves sarveshwar.bandi
2012-11-21 11:10 ` Bandi,Sarveshwar
2012-11-21 12:32 ` Ben Hutchings
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).