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Message-ID: <20090722232759.26937.78765.stgit@localhost.localdomain>
Date: Wed, 22 Jul 2009 16:28:20 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-scsi@...r.kernel.org,
devel@...n-fcoe.org, gospo@...hat.com,
Vasu Dev <vasu.dev@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH 1/5] vlan: adds fcoe offload related
net_device_ops and updates fcoe_ddp_xid field
From: Vasu Dev <vasu.dev@...el.com>
Adds fcoe offload related net_device_ops functions vlan_dev_fcoe_ddp_setup
and vlan_dev_fcoe_ddp_done, their implementation simply calls real eth device
net_device_ops for FCoE DDP setup and done operations.
Updates VLAN netdev field value for fcoe_ddp_xid from real eth device netdev.
Above changes are required for fcoe DDP offload working on a VLAN interface.
Signed-off-by: Vasu Dev <vasu.dev@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
net/8021q/vlan_dev.c | 39 +++++++++++++++++++++++++++++++++++++++
1 files changed, 39 insertions(+), 0 deletions(-)
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 96bad8f..6e695ac 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -561,6 +561,33 @@ static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
return err;
}
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid,
+ struct scatterlist *sgl, unsigned int sgc)
+{
+ struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
+ const struct net_device_ops *ops = real_dev->netdev_ops;
+ int rc = 0;
+
+ if (ops->ndo_fcoe_ddp_setup)
+ rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc);
+
+ return rc;
+}
+
+static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid)
+{
+ struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
+ const struct net_device_ops *ops = real_dev->netdev_ops;
+ int len = 0;
+
+ if (ops->ndo_fcoe_ddp_done)
+ len = ops->ndo_fcoe_ddp_done(real_dev, xid);
+
+ return len;
+}
+#endif
+
static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
{
struct net_device *real_dev = vlan_dev_info(dev)->real_dev;
@@ -635,6 +662,10 @@ static int vlan_dev_init(struct net_device *dev)
if (is_zero_ether_addr(dev->broadcast))
memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+ dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid;
+#endif
+
if (real_dev->features & NETIF_F_HW_VLAN_TX) {
dev->header_ops = real_dev->header_ops;
dev->hard_header_len = real_dev->hard_header_len;
@@ -715,6 +746,10 @@ static const struct net_device_ops vlan_netdev_ops = {
.ndo_change_rx_flags = vlan_dev_change_rx_flags,
.ndo_do_ioctl = vlan_dev_ioctl,
.ndo_neigh_setup = vlan_dev_neigh_setup,
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+ .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
+ .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
+#endif
};
static const struct net_device_ops vlan_netdev_accel_ops = {
@@ -731,6 +766,10 @@ static const struct net_device_ops vlan_netdev_accel_ops = {
.ndo_change_rx_flags = vlan_dev_change_rx_flags,
.ndo_do_ioctl = vlan_dev_ioctl,
.ndo_neigh_setup = vlan_dev_neigh_setup,
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+ .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
+ .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
+#endif
};
void vlan_setup(struct net_device *dev)
--
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