| /* |
| * 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 _FC_LIBFC_H_ |
| #define _FC_LIBFC_H_ |
| |
| #define FC_LIBFC_LOGGING 0x01 /* General logging, not categorized */ |
| #define FC_LPORT_LOGGING 0x02 /* lport layer logging */ |
| #define FC_DISC_LOGGING 0x04 /* discovery layer logging */ |
| #define FC_RPORT_LOGGING 0x08 /* rport layer logging */ |
| #define FC_FCP_LOGGING 0x10 /* I/O path logging */ |
| #define FC_EM_LOGGING 0x20 /* Exchange Manager logging */ |
| #define FC_EXCH_LOGGING 0x40 /* Exchange/Sequence logging */ |
| #define FC_SCSI_LOGGING 0x80 /* SCSI logging (mostly error handling) */ |
| |
| extern unsigned int fc_debug_logging; |
| |
| #define FC_CHECK_LOGGING(LEVEL, CMD) \ |
| do { \ |
| if (unlikely(fc_debug_logging & LEVEL)) \ |
| do { \ |
| CMD; \ |
| } while (0); \ |
| } while (0) |
| |
| #define FC_LIBFC_DBG(fmt, args...) \ |
| FC_CHECK_LOGGING(FC_LIBFC_LOGGING, \ |
| printk(KERN_INFO "libfc: " fmt, ##args)) |
| |
| #define FC_LPORT_DBG(lport, fmt, args...) \ |
| FC_CHECK_LOGGING(FC_LPORT_LOGGING, \ |
| printk(KERN_INFO "host%u: lport %6.6x: " fmt, \ |
| (lport)->host->host_no, \ |
| (lport)->port_id, ##args)) |
| |
| #define FC_DISC_DBG(disc, fmt, args...) \ |
| FC_CHECK_LOGGING(FC_DISC_LOGGING, \ |
| printk(KERN_INFO "host%u: disc: " fmt, \ |
| fc_disc_lport(disc)->host->host_no, \ |
| ##args)) |
| |
| #define FC_RPORT_ID_DBG(lport, port_id, fmt, args...) \ |
| FC_CHECK_LOGGING(FC_RPORT_LOGGING, \ |
| printk(KERN_INFO "host%u: rport %6.6x: " fmt, \ |
| (lport)->host->host_no, \ |
| (port_id), ##args)) |
| |
| #define FC_RPORT_DBG(rdata, fmt, args...) \ |
| FC_RPORT_ID_DBG((rdata)->local_port, (rdata)->ids.port_id, fmt, ##args) |
| |
| #define FC_FCP_DBG(pkt, fmt, args...) \ |
| FC_CHECK_LOGGING(FC_FCP_LOGGING, \ |
| { \ |
| if ((pkt)->seq_ptr) { \ |
| struct fc_exch *_ep = NULL; \ |
| _ep = fc_seq_exch((pkt)->seq_ptr); \ |
| printk(KERN_INFO "host%u: fcp: %6.6x: " \ |
| "xid %04x-%04x: " fmt, \ |
| (pkt)->lp->host->host_no, \ |
| (pkt)->rport->port_id, \ |
| (_ep)->oxid, (_ep)->rxid, ##args); \ |
| } else { \ |
| printk(KERN_INFO "host%u: fcp: %6.6x: " fmt, \ |
| (pkt)->lp->host->host_no, \ |
| (pkt)->rport->port_id, ##args); \ |
| } \ |
| }) |
| |
| #define FC_EXCH_DBG(exch, fmt, args...) \ |
| FC_CHECK_LOGGING(FC_EXCH_LOGGING, \ |
| printk(KERN_INFO "host%u: xid %4x: " fmt, \ |
| (exch)->lp->host->host_no, \ |
| exch->xid, ##args)) |
| |
| #define FC_SCSI_DBG(lport, fmt, args...) \ |
| FC_CHECK_LOGGING(FC_SCSI_LOGGING, \ |
| printk(KERN_INFO "host%u: scsi: " fmt, \ |
| (lport)->host->host_no, ##args)) |
| |
| /* |
| * FC-4 Providers. |
| */ |
| extern struct fc4_prov *fc_active_prov[]; /* providers without recv */ |
| extern struct fc4_prov *fc_passive_prov[]; /* providers with recv */ |
| extern struct mutex fc_prov_mutex; /* lock over table changes */ |
| |
| extern struct fc4_prov fc_rport_t0_prov; /* type 0 provider */ |
| extern struct fc4_prov fc_lport_els_prov; /* ELS provider */ |
| extern struct fc4_prov fc_rport_fcp_init; /* FCP initiator provider */ |
| |
| /* |
| * Set up direct-data placement for this I/O request |
| */ |
| void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid); |
| |
| /* |
| * Module setup functions |
| */ |
| int fc_setup_exch_mgr(void); |
| void fc_destroy_exch_mgr(void); |
| int fc_setup_rport(void); |
| void fc_destroy_rport(void); |
| int fc_setup_fcp(void); |
| void fc_destroy_fcp(void); |
| |
| /* |
| * Internal libfc functions |
| */ |
| const char *fc_els_resp_type(struct fc_frame *); |
| |
| /* |
| * Copies a buffer into an sg list |
| */ |
| u32 fc_copy_buffer_to_sglist(void *buf, size_t len, |
| struct scatterlist *sg, |
| u32 *nents, size_t *offset, |
| enum km_type km_type, u32 *crc); |
| |
| #endif /* _FC_LIBFC_H_ */ |