From aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 Mon Sep 17 00:00:00 2001 From: merge Date: Thu, 22 Jan 2009 13:55:32 +0000 Subject: MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green fix-stray-endmenu.patch Signed-off-by: Andy Green --- include/scsi/libfcoe.h | 176 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 176 insertions(+) create mode 100644 include/scsi/libfcoe.h (limited to 'include/scsi/libfcoe.h') diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h new file mode 100644 index 00000000000..89fdbb9a6a1 --- /dev/null +++ b/include/scsi/libfcoe.h @@ -0,0 +1,176 @@ +/* + * Copyright(c) 2007 - 2008 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 _LIBFCOE_H +#define _LIBFCOE_H + +#include +#include +#include +#include + +/* + * this percpu struct for fcoe + */ +struct fcoe_percpu_s { + int cpu; + 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 fc_lport *lp; + struct net_device *real_dev; + struct net_device *phys_dev; /* device with ethtool_ops */ + struct packet_type fcoe_packet_type; + struct sk_buff_head fcoe_pending_queue; + + u8 dest_addr[ETH_ALEN]; + u8 ctl_src_addr[ETH_ALEN]; + u8 data_src_addr[ETH_ALEN]; + /* + * fcoe protocol address learning related stuff + */ + u16 flogi_oxid; + u8 flogi_progress; + u8 address_mode; +}; + +static inline struct fcoe_softc *fcoe_softc( + const struct fc_lport *lp) +{ + return (struct fcoe_softc *)lport_priv(lp); +} + +static inline struct net_device *fcoe_netdev( + const struct fc_lport *lp) +{ + return fcoe_softc(lp)->real_dev; +} + +static inline struct fcoe_hdr *skb_fcoe_header(const struct sk_buff *skb) +{ + return (struct fcoe_hdr *)skb_network_header(skb); +} + +static inline int skb_fcoe_offset(const struct sk_buff *skb) +{ + return skb_network_offset(skb); +} + +static inline struct fc_frame_header *skb_fc_header(const struct sk_buff *skb) +{ + return (struct fc_frame_header *)skb_transport_header(skb); +} + +static inline int skb_fc_offset(const struct sk_buff *skb) +{ + return skb_transport_offset(skb); +} + +static inline void skb_reset_fc_header(struct sk_buff *skb) +{ + skb_reset_network_header(skb); + skb_set_transport_header(skb, skb_network_offset(skb) + + sizeof(struct fcoe_hdr)); +} + +static inline bool skb_fc_is_data(const struct sk_buff *skb) +{ + return skb_fc_header(skb)->fh_r_ctl == FC_RCTL_DD_SOL_DATA; +} + +static inline bool skb_fc_is_cmd(const struct sk_buff *skb) +{ + return skb_fc_header(skb)->fh_r_ctl == FC_RCTL_DD_UNSOL_CMD; +} + +static inline bool skb_fc_has_exthdr(const struct sk_buff *skb) +{ + return (skb_fc_header(skb)->fh_r_ctl == FC_RCTL_VFTH) || + (skb_fc_header(skb)->fh_r_ctl == FC_RCTL_IFRH) || + (skb_fc_header(skb)->fh_r_ctl == FC_RCTL_ENCH); +} + +static inline bool skb_fc_is_roff(const struct sk_buff *skb) +{ + return skb_fc_header(skb)->fh_f_ctl[2] & FC_FC_REL_OFF; +} + +static inline u16 skb_fc_oxid(const struct sk_buff *skb) +{ + return be16_to_cpu(skb_fc_header(skb)->fh_ox_id); +} + +static inline u16 skb_fc_rxid(const struct sk_buff *skb) +{ + return be16_to_cpu(skb_fc_header(skb)->fh_rx_id); +} + +/* FIXME - DMA_BIDIRECTIONAL ? */ +#define skb_cb(skb) ((struct fcoe_rcv_info *)&((skb)->cb[0])) +#define skb_cmd(skb) (skb_cb(skb)->fr_cmd) +#define skb_dir(skb) (skb_cmd(skb)->sc_data_direction) +static inline bool skb_fc_is_read(const struct sk_buff *skb) +{ + if (skb_fc_is_cmd(skb) && skb_cmd(skb)) + return skb_dir(skb) == DMA_FROM_DEVICE; + return false; +} + +static inline bool skb_fc_is_write(const struct sk_buff *skb) +{ + if (skb_fc_is_cmd(skb) && skb_cmd(skb)) + return skb_dir(skb) == DMA_TO_DEVICE; + return false; +} + +/* libfcoe funcs */ +int fcoe_reset(struct Scsi_Host *shost); +u64 fcoe_wwn_from_mac(unsigned char mac[MAX_ADDR_LEN], + unsigned int scheme, unsigned int port); + +u32 fcoe_fc_crc(struct fc_frame *fp); +int fcoe_xmit(struct fc_lport *, struct fc_frame *); +int fcoe_rcv(struct sk_buff *, struct net_device *, + struct packet_type *, struct net_device *); + +int fcoe_percpu_receive_thread(void *arg); +void fcoe_clean_pending_queue(struct fc_lport *lp); +void fcoe_percpu_clean(struct fc_lport *lp); +void fcoe_watchdog(ulong vp); +int fcoe_link_ok(struct fc_lport *lp); + +struct fc_lport *fcoe_hostlist_lookup(const struct net_device *); +int fcoe_hostlist_add(const struct fc_lport *); +int fcoe_hostlist_remove(const struct fc_lport *); + +struct Scsi_Host *fcoe_host_alloc(struct scsi_host_template *, int); +int fcoe_libfc_config(struct fc_lport *, struct libfc_function_template *); + +/* fcoe sw hba */ +int __init fcoe_sw_init(void); +int __exit fcoe_sw_exit(void); +#endif /* _LIBFCOE_H */ -- cgit v1.2.3