1047f22108
Removes periodic fcoe_watchdog timer used across all fcoe interface maintained in fcoe_hostlist instead added new fcoe_queue_timer per fcoe interface. Added timer is armed only when some pending skb need to be flushed as oppose to periodic 1 second fcoe_watchdog, since now fcoe_queue_timer is used on demand thus set this to 2 jiffies. Now fcoe_queue_timer is much simple than fcoe_watchdog using lock to process all fcoe interface from fcoe_hostlist. I noticed +ve performance result with using 2 jiffies timer as this helps flushing fcoe_pending_queue quickly. Signed-off-by: Vasu Dev <vasu.dev@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
/*
|
|
* Copyright(c) 2009 Intel Corporation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Maintained at www.Open-FCoE.org
|
|
*/
|
|
|
|
#ifndef _FCOE_H_
|
|
#define _FCOE_H_
|
|
|
|
#include <linux/skbuff.h>
|
|
#include <linux/kthread.h>
|
|
|
|
#define FCOE_MAX_QUEUE_DEPTH 256
|
|
#define FCOE_LOW_QUEUE_DEPTH 32
|
|
|
|
#define FCOE_WORD_TO_BYTE 4
|
|
|
|
#define FCOE_VERSION "0.1"
|
|
#define FCOE_NAME "fcoe"
|
|
#define FCOE_VENDOR "Open-FCoE.org"
|
|
|
|
#define FCOE_MAX_LUN 255
|
|
#define FCOE_MAX_FCP_TARGET 256
|
|
|
|
#define FCOE_MAX_OUTSTANDING_COMMANDS 1024
|
|
|
|
#define FCOE_MIN_XID 0x0001 /* the min xid supported by fcoe_sw */
|
|
#define FCOE_MAX_XID 0x07ef /* the max xid supported by fcoe_sw */
|
|
|
|
/*
|
|
* this percpu struct for fcoe
|
|
*/
|
|
struct fcoe_percpu_s {
|
|
struct task_struct *thread;
|
|
struct sk_buff_head fcoe_rx_list;
|
|
struct page *crc_eof_page;
|
|
int crc_eof_offset;
|
|
};
|
|
|
|
/*
|
|
* the fcoe sw transport private data
|
|
*/
|
|
struct fcoe_softc {
|
|
struct list_head list;
|
|
struct net_device *real_dev;
|
|
struct net_device *phys_dev; /* device with ethtool_ops */
|
|
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 */
|
|
struct fcoe_ctlr ctlr;
|
|
};
|
|
|
|
#define fcoe_from_ctlr(fc) container_of(fc, struct fcoe_softc, ctlr)
|
|
|
|
static inline struct net_device *fcoe_netdev(
|
|
const struct fc_lport *lp)
|
|
{
|
|
return ((struct fcoe_softc *)lport_priv(lp))->real_dev;
|
|
}
|
|
|
|
#endif /* _FCOE_H_ */
|