d1483bb90a
Use real dev in case it has HW vlan acceleration support since in this case the real dev would do needed vlan processing, this way unnecessary vlan layer processing avoided and it gives slightly better IOPS with 512B size IOs. Signed-off-by: Vasu Dev <vasu.dev@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*
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* Copyright(c) 2009 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Maintained at www.Open-FCoE.org
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*/
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#ifndef _FCOE_H_
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#define _FCOE_H_
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#include <linux/skbuff.h>
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#include <linux/kthread.h>
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#define FCOE_MAX_QUEUE_DEPTH 256
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#define FCOE_MIN_QUEUE_DEPTH 32
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#define FCOE_WORD_TO_BYTE 4
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#define FCOE_VERSION "0.1"
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#define FCOE_NAME "fcoe"
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#define FCOE_VENDOR "Open-FCoE.org"
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#define FCOE_MAX_LUN 0xFFFF
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#define FCOE_MAX_FCP_TARGET 256
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#define FCOE_MAX_OUTSTANDING_COMMANDS 1024
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#define FCOE_MIN_XID 0x0000 /* the min xid supported by fcoe_sw */
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#define FCOE_MAX_XID 0x0FFF /* the max xid supported by fcoe_sw */
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unsigned int fcoe_debug_logging;
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module_param_named(debug_logging, fcoe_debug_logging, int, S_IRUGO|S_IWUSR);
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MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
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#define FCOE_LOGGING 0x01 /* General logging, not categorized */
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#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
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#define FCOE_CHECK_LOGGING(LEVEL, CMD) \
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do { \
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if (unlikely(fcoe_debug_logging & LEVEL)) \
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do { \
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CMD; \
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} while (0); \
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} while (0)
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#define FCOE_DBG(fmt, args...) \
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FCOE_CHECK_LOGGING(FCOE_LOGGING, \
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printk(KERN_INFO "fcoe: " fmt, ##args);)
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#define FCOE_NETDEV_DBG(netdev, fmt, args...) \
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FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING, \
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printk(KERN_INFO "fcoe: %s: " fmt, \
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netdev->name, ##args);)
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/**
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* struct fcoe_interface - A FCoE interface
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* @list: Handle for a list of FCoE interfaces
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* @netdev: The associated net device
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* @fcoe_packet_type: FCoE packet type
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* @fip_packet_type: FIP packet type
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* @ctlr: The FCoE controller (for FIP)
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* @oem: The offload exchange manager for all local port
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* instances associated with this port
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* @kref: The kernel reference
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*
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* This structure is 1:1 with a net devive.
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*/
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struct fcoe_interface {
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struct list_head list;
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struct net_device *netdev;
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struct net_device *realdev;
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struct packet_type fcoe_packet_type;
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struct packet_type fip_packet_type;
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struct fcoe_ctlr ctlr;
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struct fc_exch_mgr *oem;
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struct kref kref;
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};
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#define fcoe_from_ctlr(fip) container_of(fip, struct fcoe_interface, ctlr)
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/**
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* fcoe_netdev() - Return the net device associated with a local port
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* @lport: The local port to get the net device from
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*/
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static inline struct net_device *fcoe_netdev(const struct fc_lport *lport)
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{
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return ((struct fcoe_interface *)
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((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
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}
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#endif /* _FCOE_H_ */
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