netdev - RE: [PATCH net-2.6] be2net: Bonding driver does not considerthe gso_max

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <044b44bc-8768-49af-ae2a-5227b09b73d9@CMEXHTCAS1.ad.emulex.com>
Date:	Wed, 21 Nov 2012 11:10:04 +0000
From:	"Bandi,Sarveshwar" <Sarveshwar.Bandi@...lex.Com>
To:	"Bandi,Sarveshwar" <Sarveshwar.Bandi@...lex.Com>,
	"davem@...emloft.net" <davem@...emloft.net>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH net-2.6] be2net: Bonding driver does not considerthe
 gso_max_size setting of slaves.

Please ignore this patch. It is meant for bonding driver. Will resend patch.

-----Original Message-----
From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org] On Behalf Of sarveshwar.bandi@...lex.com
Sent: Wednesday, November 21, 2012 4:38 PM
To: davem@...emloft.net
Cc: netdev@...r.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@...lex.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@...lex.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@...r.kernel.org More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html