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[SCSI] fcoe: move packet handlers from fcoe_port to fcoe_interface 

The packet handlers need to be tracked in fcoe_interface so there is only one
set per net_device.  When NPIV is enabled there will be multiple SCSI hosts
and multiple fcoe_port structures on a single net_device.

The packet handlers match by ethertype and netdev.  If the same handler gets
registered on a single netdev multiple times, the receive function will be
called multiple times for each frame.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Chris Leech 2009-08-25 13:59:41 -07:00 committed by James Bottomley
parent 250249898a
commit 259ad85d8d
2 changed files with 18 additions and 14 deletions
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28
drivers/scsi/fcoe/fcoe.c
View File

@ -151,9 +151,11 @@ static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype,
struct net_device *orig_dev)
{
struct fcoe_interface *fcoe;
struct fcoe_port *port;
port = container_of(ptype, struct fcoe_port, fip_packet_type);
fcoe = container_of(ptype, struct fcoe_interface, fip_packet_type);
port = fcoe->priv;
fcoe_ctlr_recv(&port->ctlr, skb);
return 0;
}
@ -235,8 +237,8 @@ void fcoe_netdev_cleanup(struct fcoe_port *port)
struct fcoe_interface *fcoe = port->fcoe;
/* Don't listen for Ethernet packets anymore */
dev_remove_pack(&port->fcoe_packet_type);
dev_remove_pack(&port->fip_packet_type);
dev_remove_pack(&fcoe->fcoe_packet_type);
dev_remove_pack(&fcoe->fip_packet_type);
/* Delete secondary MAC addresses */
rtnl_lock();
@ -368,15 +370,15 @@ static int fcoe_netdev_config(struct fc_lport *lp, struct net_device *netdev)
* setup the receive function from ethernet driver
* on the ethertype for the given device
*/
port->fcoe_packet_type.func = fcoe_rcv;
port->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
port->fcoe_packet_type.dev = netdev;
dev_add_pack(&port->fcoe_packet_type);
fcoe->fcoe_packet_type.func = fcoe_rcv;
fcoe->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
fcoe->fcoe_packet_type.dev = netdev;
dev_add_pack(&fcoe->fcoe_packet_type);
port->fip_packet_type.func = fcoe_fip_recv;
port->fip_packet_type.type = htons(ETH_P_FIP);
port->fip_packet_type.dev = netdev;
dev_add_pack(&port->fip_packet_type);
fcoe->fip_packet_type.func = fcoe_fip_recv;
fcoe->fip_packet_type.type = htons(ETH_P_FIP);
fcoe->fip_packet_type.dev = netdev;
dev_add_pack(&fcoe->fip_packet_type);
return 0;
}
@ -926,12 +928,14 @@ int fcoe_rcv(struct sk_buff *skb, struct net_device *dev,
{
struct fc_lport *lp;
struct fcoe_rcv_info *fr;
struct fcoe_interface *fcoe;
struct fcoe_port *port;
struct fc_frame_header *fh;
struct fcoe_percpu_s *fps;
unsigned int cpu;
port = container_of(ptype, struct fcoe_port, fcoe_packet_type);
fcoe = container_of(ptype, struct fcoe_interface, fcoe_packet_type);
port = fcoe->priv;
lp = port->ctlr.lp;
if (unlikely(lp == NULL)) {
FCOE_NETDEV_DBG(dev, "Cannot find hba structure");

4
drivers/scsi/fcoe/fcoe.h
View File

@ -83,6 +83,8 @@ struct fcoe_interface {
* moved out of fcoe_port */
struct fcoe_port *priv;
struct net_device *netdev;
struct packet_type fcoe_packet_type;
struct packet_type fip_packet_type;
};
/*
@ -92,8 +94,6 @@ struct fcoe_interface {
struct fcoe_port {
struct fcoe_interface *fcoe;
struct fc_exch_mgr *oem; /* offload exchange manger */
struct packet_type fcoe_packet_type;
struct packet_type fip_packet_type;
struct sk_buff_head fcoe_pending_queue;
u8 fcoe_pending_queue_active;
struct timer_list timer; /* queue timer */