[SCSI] fcoe: cleans up libfcoe.h and adds fcoe.h for fcoe module
Removes no where used several inline functions prefixed with skb_* and be16_to_cpu. Moves fcoe module specific func prototypes to fcoe.c from libfcoe.h, moved only need for build. Adds fcoe module header file fcoe.h and then moves fcoe module specific fcoe_percpu_s and fcoe_softc to fcoe.h from libfcoe.h. Moves all defines from fcoe.c to fcoe.h since now fcoe module has its own header file fcoe.h. [jejb: removed EXPORT_SYMBOL_GPL(fcoe_fc_crc) which caused a section mismatch] Signed-off-by: Vasu Dev <vasu.dev@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Vasu Dev
James Bottomley
Родитель
5e80f7f7c8
Коммит
fdd78027fd
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@ -19,15 +19,12 @@
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#include <linux/module.h>
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#include <linux/version.h>
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#include <linux/kernel.h>
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#include <linux/spinlock.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/if_ether.h>
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#include <linux/if_vlan.h>
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#include <linux/kthread.h>
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#include <linux/crc32.h>
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#include <linux/cpu.h>
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#include <linux/fs.h>
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@ -45,29 +42,10 @@
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#include <scsi/fc_frame.h>
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#include <scsi/libfcoe.h>
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#include "fcoe.h"
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static int debug_fcoe;
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#define FCOE_MAX_QUEUE_DEPTH 256
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#define FCOE_LOW_QUEUE_DEPTH 32
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/* destination address mode */
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#define FCOE_GW_ADDR_MODE 0x00
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#define FCOE_FCOUI_ADDR_MODE 0x01
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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 255
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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 0x0001 /* the min xid supported by fcoe_sw */
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#define FCOE_MAX_XID 0x07ef /* the max xid supported by fcoe_sw */
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MODULE_AUTHOR("Open-FCoE.org");
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MODULE_DESCRIPTION("FCoE");
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MODULE_LICENSE("GPL v2");
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@ -78,8 +56,22 @@ DEFINE_RWLOCK(fcoe_hostlist_lock);
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DEFINE_TIMER(fcoe_timer, NULL, 0, 0);
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DEFINE_PER_CPU(struct fcoe_percpu_s, fcoe_percpu);
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/* Function Prototyes */
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static int fcoe_reset(struct Scsi_Host *shost);
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static int fcoe_xmit(struct fc_lport *, struct fc_frame *);
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static int fcoe_rcv(struct sk_buff *, struct net_device *,
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struct packet_type *, struct net_device *);
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static int fcoe_percpu_receive_thread(void *arg);
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static void fcoe_clean_pending_queue(struct fc_lport *lp);
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static void fcoe_percpu_clean(struct fc_lport *lp);
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static int fcoe_link_ok(struct fc_lport *lp);
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static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *);
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static int fcoe_hostlist_add(const struct fc_lport *);
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static int fcoe_hostlist_remove(const struct fc_lport *);
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static struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *, int);
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static int fcoe_check_wait_queue(struct fc_lport *);
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static void fcoe_recv_flogi(struct fcoe_softc *, struct fc_frame *, u8 *);
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static int fcoe_device_notification(struct notifier_block *, ulong, void *);
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@ -919,7 +911,6 @@ u32 fcoe_fc_crc(struct fc_frame *fp)
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}
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return crc;
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}
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EXPORT_SYMBOL_GPL(fcoe_fc_crc);
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/**
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* fcoe_xmit() - FCoE frame transmit function
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@ -0,0 +1,86 @@
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/*
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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_LOW_QUEUE_DEPTH 32
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/* destination address mode */
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#define FCOE_GW_ADDR_MODE 0x00
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#define FCOE_FCOUI_ADDR_MODE 0x01
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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 255
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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 0x0001 /* the min xid supported by fcoe_sw */
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#define FCOE_MAX_XID 0x07ef /* the max xid supported by fcoe_sw */
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/*
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* this percpu struct for fcoe
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*/
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struct fcoe_percpu_s {
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struct task_struct *thread;
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struct sk_buff_head fcoe_rx_list;
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struct page *crc_eof_page;
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int crc_eof_offset;
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};
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/*
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* the fcoe sw transport private data
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*/
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struct fcoe_softc {
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struct list_head list;
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struct fc_lport *lp;
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struct net_device *real_dev;
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struct net_device *phys_dev; /* device with ethtool_ops */
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struct packet_type fcoe_packet_type;
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struct sk_buff_head fcoe_pending_queue;
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u8 fcoe_pending_queue_active;
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u8 dest_addr[ETH_ALEN];
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u8 ctl_src_addr[ETH_ALEN];
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u8 data_src_addr[ETH_ALEN];
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/*
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* fcoe protocol address learning related stuff
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*/
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u16 flogi_oxid;
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u8 flogi_progress;
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u8 address_mode;
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};
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static inline struct net_device *fcoe_netdev(
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const struct fc_lport *lp)
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{
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return ((struct fcoe_softc *)lport_priv(lp))->real_dev;
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}
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#endif /* _FCOE_H_ */
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@ -25,124 +25,8 @@
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#include <scsi/fc/fc_fcoe.h>
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#include <scsi/libfc.h>
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/*
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* this percpu struct for fcoe
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*/
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struct fcoe_percpu_s {
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struct task_struct *thread;
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struct sk_buff_head fcoe_rx_list;
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struct page *crc_eof_page;
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int crc_eof_offset;
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};
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/*
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* the fcoe sw transport private data
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*/
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struct fcoe_softc {
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struct list_head list;
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struct fc_lport *lp;
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struct net_device *real_dev;
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struct net_device *phys_dev; /* device with ethtool_ops */
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struct packet_type fcoe_packet_type;
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struct sk_buff_head fcoe_pending_queue;
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u8 fcoe_pending_queue_active;
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u8 dest_addr[ETH_ALEN];
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u8 ctl_src_addr[ETH_ALEN];
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u8 data_src_addr[ETH_ALEN];
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/*
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* fcoe protocol address learning related stuff
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*/
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u16 flogi_oxid;
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u8 flogi_progress;
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u8 address_mode;
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};
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static inline struct net_device *fcoe_netdev(
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const struct fc_lport *lp)
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{
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return ((struct fcoe_softc *)lport_priv(lp))->real_dev;
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}
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static inline struct fcoe_hdr *skb_fcoe_header(const struct sk_buff *skb)
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{
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return (struct fcoe_hdr *)skb_network_header(skb);
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}
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static inline int skb_fcoe_offset(const struct sk_buff *skb)
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{
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return skb_network_offset(skb);
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}
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static inline struct fc_frame_header *skb_fc_header(const struct sk_buff *skb)
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{
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return (struct fc_frame_header *)skb_transport_header(skb);
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}
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static inline int skb_fc_offset(const struct sk_buff *skb)
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{
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return skb_transport_offset(skb);
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}
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static inline void skb_reset_fc_header(struct sk_buff *skb)
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{
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skb_reset_network_header(skb);
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skb_set_transport_header(skb, skb_network_offset(skb) +
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sizeof(struct fcoe_hdr));
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}
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static inline bool skb_fc_is_data(const struct sk_buff *skb)
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{
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return skb_fc_header(skb)->fh_r_ctl == FC_RCTL_DD_SOL_DATA;
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}
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static inline bool skb_fc_is_cmd(const struct sk_buff *skb)
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{
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return skb_fc_header(skb)->fh_r_ctl == FC_RCTL_DD_UNSOL_CMD;
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}
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static inline bool skb_fc_has_exthdr(const struct sk_buff *skb)
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{
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return (skb_fc_header(skb)->fh_r_ctl == FC_RCTL_VFTH) ||
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(skb_fc_header(skb)->fh_r_ctl == FC_RCTL_IFRH) ||
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(skb_fc_header(skb)->fh_r_ctl == FC_RCTL_ENCH);
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}
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static inline bool skb_fc_is_roff(const struct sk_buff *skb)
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{
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return skb_fc_header(skb)->fh_f_ctl[2] & FC_FC_REL_OFF;
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}
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static inline u16 skb_fc_oxid(const struct sk_buff *skb)
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{
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return be16_to_cpu(skb_fc_header(skb)->fh_ox_id);
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}
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static inline u16 skb_fc_rxid(const struct sk_buff *skb)
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{
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return be16_to_cpu(skb_fc_header(skb)->fh_rx_id);
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}
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/* libfcoe funcs */
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int fcoe_reset(struct Scsi_Host *shost);
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u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN],
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unsigned int scheme, unsigned int port);
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u32 fcoe_fc_crc(struct fc_frame *fp);
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int fcoe_xmit(struct fc_lport *, struct fc_frame *);
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int fcoe_rcv(struct sk_buff *, struct net_device *,
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struct packet_type *, struct net_device *);
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int fcoe_percpu_receive_thread(void *arg);
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void fcoe_clean_pending_queue(struct fc_lport *lp);
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void fcoe_percpu_clean(struct fc_lport *lp);
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void fcoe_watchdog(ulong vp);
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int fcoe_link_ok(struct fc_lport *lp);
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struct fc_lport *fcoe_hostlist_lookup(const struct net_device *);
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int fcoe_hostlist_add(const struct fc_lport *);
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int fcoe_hostlist_remove(const struct fc_lport *);
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struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *, int);
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u64 fcoe_wwn_from_mac(unsigned char mac[], unsigned int, unsigned int);
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int fcoe_libfc_config(struct fc_lport *, struct libfc_function_template *);
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#endif /* _LIBFCOE_H */
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