2005-10-27 18:10:08 +00:00
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/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2005 QLogic Corporation
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*
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* See LICENSE.qla2xxx for copyright and licensing details.
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*/
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2005-04-16 22:20:36 +00:00
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#ifndef __QLA_GBL_H
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#define __QLA_GBL_H
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#include <linux/interrupt.h>
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/*
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* Global Function Prototypes in qla_init.c source file.
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*/
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extern int qla2x00_initialize_adapter(scsi_qla_host_t *);
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2005-07-06 17:30:05 +00:00
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extern int qla2100_pci_config(struct scsi_qla_host *);
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extern int qla2300_pci_config(struct scsi_qla_host *);
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2005-07-06 17:31:37 +00:00
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extern int qla24xx_pci_config(scsi_qla_host_t *);
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2005-07-06 17:30:05 +00:00
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extern void qla2x00_reset_chip(struct scsi_qla_host *);
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2005-07-06 17:31:37 +00:00
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extern void qla24xx_reset_chip(struct scsi_qla_host *);
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2005-07-06 17:30:05 +00:00
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extern int qla2x00_chip_diag(struct scsi_qla_host *);
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2005-07-06 17:31:37 +00:00
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extern int qla24xx_chip_diag(struct scsi_qla_host *);
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2005-07-06 17:30:05 +00:00
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extern void qla2x00_config_rings(struct scsi_qla_host *);
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2005-07-06 17:31:37 +00:00
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extern void qla24xx_config_rings(struct scsi_qla_host *);
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2005-07-06 17:30:05 +00:00
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extern void qla2x00_reset_adapter(struct scsi_qla_host *);
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2005-07-06 17:31:37 +00:00
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extern void qla24xx_reset_adapter(struct scsi_qla_host *);
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2005-07-06 17:30:05 +00:00
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extern int qla2x00_nvram_config(struct scsi_qla_host *);
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2005-07-06 17:31:37 +00:00
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extern int qla24xx_nvram_config(struct scsi_qla_host *);
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2005-07-06 17:30:05 +00:00
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extern void qla2x00_update_fw_options(struct scsi_qla_host *);
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2005-07-06 17:31:37 +00:00
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extern void qla24xx_update_fw_options(scsi_qla_host_t *);
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2005-07-06 17:30:05 +00:00
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extern int qla2x00_load_risc(struct scsi_qla_host *, uint32_t *);
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2005-11-09 23:49:04 +00:00
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extern int qla24xx_load_risc(scsi_qla_host_t *, uint32_t *);
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2005-04-16 22:20:36 +00:00
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extern int qla2x00_loop_resync(scsi_qla_host_t *);
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extern int qla2x00_fabric_login(scsi_qla_host_t *, fc_port_t *, uint16_t *);
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2006-03-09 22:27:44 +00:00
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extern int qla2x00_local_device_login(scsi_qla_host_t *, fc_port_t *);
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2005-04-16 22:20:36 +00:00
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extern void qla2x00_restart_queues(scsi_qla_host_t *, uint8_t);
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extern void qla2x00_rescan_fcports(scsi_qla_host_t *);
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2006-01-20 22:53:13 +00:00
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extern void qla2x00_update_fcports(scsi_qla_host_t *);
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2005-04-16 22:20:36 +00:00
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extern int qla2x00_abort_isp(scsi_qla_host_t *);
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2006-01-20 22:53:19 +00:00
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extern void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *);
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2005-04-17 20:04:54 +00:00
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extern void qla2x00_reg_remote_port(scsi_qla_host_t *, fc_port_t *);
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2006-06-23 23:10:29 +00:00
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extern void qla2x00_alloc_fw_dump(scsi_qla_host_t *);
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2005-04-16 22:20:36 +00:00
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/*
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* Global Data in qla_os.c source file.
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*/
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extern char qla2x00_version_str[];
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extern int ql2xlogintimeout;
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extern int qlport_down_retry;
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extern int ql2xplogiabsentdevice;
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extern int ql2xloginretrycount;
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2005-08-27 02:08:30 +00:00
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extern int ql2xfdmienable;
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2006-06-23 23:10:29 +00:00
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extern int ql2xallocfwdump;
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2006-10-06 16:54:59 +00:00
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extern int ql2xextended_error_logging;
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2005-04-16 22:20:36 +00:00
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2005-04-17 20:02:26 +00:00
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extern void qla2x00_sp_compl(scsi_qla_host_t *, srb_t *);
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2005-04-16 22:20:36 +00:00
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extern char *qla2x00_get_fw_version_str(struct scsi_qla_host *, char *);
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2006-01-20 22:53:13 +00:00
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extern void qla2x00_mark_device_lost(scsi_qla_host_t *, fc_port_t *, int, int);
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extern void qla2x00_mark_all_devices_lost(scsi_qla_host_t *, int);
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2005-04-16 22:20:36 +00:00
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extern int qla2x00_down_timeout(struct semaphore *, unsigned long);
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2005-11-09 23:49:04 +00:00
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extern struct fw_blob *qla2x00_request_firmware(scsi_qla_host_t *);
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2005-04-16 22:20:36 +00:00
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2006-02-01 00:05:17 +00:00
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extern int qla2x00_wait_for_hba_online(scsi_qla_host_t *);
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2006-02-14 17:46:22 +00:00
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extern void qla2xxx_wake_dpc(scsi_qla_host_t *);
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2005-04-16 22:20:36 +00:00
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/*
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* Global Function Prototypes in qla_iocb.c source file.
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*/
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extern uint16_t qla2x00_calc_iocbs_32(uint16_t);
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extern uint16_t qla2x00_calc_iocbs_64(uint16_t);
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extern void qla2x00_build_scsi_iocbs_32(srb_t *, cmd_entry_t *, uint16_t);
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extern void qla2x00_build_scsi_iocbs_64(srb_t *, cmd_entry_t *, uint16_t);
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extern int qla2x00_start_scsi(srb_t *sp);
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2005-07-06 17:31:17 +00:00
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extern int qla24xx_start_scsi(srb_t *sp);
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2005-04-16 22:20:36 +00:00
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int qla2x00_marker(scsi_qla_host_t *, uint16_t, uint16_t, uint8_t);
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int __qla2x00_marker(scsi_qla_host_t *, uint16_t, uint16_t, uint8_t);
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/*
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* Global Function Prototypes in qla_mbx.c source file.
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*/
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extern int
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2006-01-14 01:05:37 +00:00
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qla2x00_load_ram(scsi_qla_host_t *, dma_addr_t, uint32_t, uint32_t);
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2005-04-16 22:20:36 +00:00
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extern int
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2005-07-06 17:30:57 +00:00
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qla2x00_execute_fw(scsi_qla_host_t *, uint32_t);
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2005-04-16 22:20:36 +00:00
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extern void
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qla2x00_get_fw_version(scsi_qla_host_t *, uint16_t *,
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uint16_t *, uint16_t *, uint16_t *, uint32_t *);
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extern int
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qla2x00_get_fw_options(scsi_qla_host_t *, uint16_t *);
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extern int
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qla2x00_set_fw_options(scsi_qla_host_t *, uint16_t *);
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extern int
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qla2x00_mbx_reg_test(scsi_qla_host_t *);
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extern int
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2005-07-06 17:30:57 +00:00
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qla2x00_verify_checksum(scsi_qla_host_t *, uint32_t);
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2005-04-16 22:20:36 +00:00
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extern int
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qla2x00_issue_iocb(scsi_qla_host_t *, void *, dma_addr_t, size_t);
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extern int
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qla2x00_abort_command(scsi_qla_host_t *, srb_t *);
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#if USE_ABORT_TGT
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extern int
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2005-07-06 17:30:57 +00:00
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qla2x00_abort_target(fc_port_t *);
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2005-04-16 22:20:36 +00:00
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#endif
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extern int
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qla2x00_get_adapter_id(scsi_qla_host_t *, uint16_t *, uint8_t *, uint8_t *,
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uint8_t *, uint16_t *);
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extern int
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qla2x00_get_retry_cnt(scsi_qla_host_t *, uint8_t *, uint8_t *, uint16_t *);
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extern int
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qla2x00_init_firmware(scsi_qla_host_t *, uint16_t);
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extern int
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qla2x00_get_port_database(scsi_qla_host_t *, fc_port_t *, uint8_t);
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extern int
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qla2x00_get_firmware_state(scsi_qla_host_t *, uint16_t *);
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extern int
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qla2x00_get_port_name(scsi_qla_host_t *, uint16_t, uint8_t *, uint8_t);
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extern int
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qla2x00_lip_reset(scsi_qla_host_t *);
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extern int
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qla2x00_send_sns(scsi_qla_host_t *, dma_addr_t, uint16_t, size_t);
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extern int
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qla2x00_login_fabric(scsi_qla_host_t *, uint16_t, uint8_t, uint8_t, uint8_t,
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uint16_t *, uint8_t);
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2005-07-06 17:30:57 +00:00
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extern int
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qla24xx_login_fabric(scsi_qla_host_t *, uint16_t, uint8_t, uint8_t, uint8_t,
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uint16_t *, uint8_t);
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2005-04-16 22:20:36 +00:00
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extern int
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2006-03-09 22:27:44 +00:00
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qla2x00_login_local_device(scsi_qla_host_t *, fc_port_t *, uint16_t *,
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uint8_t);
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2005-04-16 22:20:36 +00:00
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extern int
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2005-07-06 17:30:57 +00:00
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qla2x00_fabric_logout(scsi_qla_host_t *, uint16_t, uint8_t, uint8_t, uint8_t);
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extern int
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qla24xx_fabric_logout(scsi_qla_host_t *, uint16_t, uint8_t, uint8_t, uint8_t);
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2005-04-16 22:20:36 +00:00
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extern int
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qla2x00_full_login_lip(scsi_qla_host_t *ha);
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extern int
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qla2x00_get_id_list(scsi_qla_host_t *, void *, dma_addr_t, uint16_t *);
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extern int
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qla2x00_get_resource_cnts(scsi_qla_host_t *, uint16_t *, uint16_t *, uint16_t *,
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uint16_t *);
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extern int
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qla2x00_get_fcal_position_map(scsi_qla_host_t *ha, char *pos_map);
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2006-02-01 00:05:02 +00:00
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extern int
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qla2x00_get_link_status(scsi_qla_host_t *, uint16_t, link_stat_t *,
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uint16_t *);
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extern int
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qla24xx_get_isp_stats(scsi_qla_host_t *, uint32_t *, uint32_t, uint16_t *);
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2005-07-06 17:30:57 +00:00
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extern int qla24xx_abort_command(scsi_qla_host_t *, srb_t *);
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extern int qla24xx_abort_target(fc_port_t *);
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extern int qla2x00_system_error(scsi_qla_host_t *);
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extern int
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qla2x00_get_serdes_params(scsi_qla_host_t *, uint16_t *, uint16_t *,
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uint16_t *);
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extern int
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qla2x00_set_serdes_params(scsi_qla_host_t *, uint16_t, uint16_t, uint16_t);
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2005-08-27 02:10:20 +00:00
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extern int
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qla2x00_stop_firmware(scsi_qla_host_t *);
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2006-06-23 23:10:29 +00:00
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extern int
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qla2x00_trace_control(scsi_qla_host_t *, uint16_t, dma_addr_t, uint16_t);
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2006-06-23 23:10:50 +00:00
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extern int
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qla2x00_read_sfp(scsi_qla_host_t *, dma_addr_t, uint16_t, uint16_t, uint16_t);
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2006-10-02 19:00:43 +00:00
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extern int
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qla2x00_get_idma_speed(scsi_qla_host_t *, uint16_t, uint16_t *, uint16_t *);
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extern int
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qla2x00_set_idma_speed(scsi_qla_host_t *, uint16_t, uint16_t, uint16_t *);
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2005-04-16 22:20:36 +00:00
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/*
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* Global Function Prototypes in qla_isr.c source file.
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*/
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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 13:55:46 +00:00
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extern irqreturn_t qla2100_intr_handler(int, void *);
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extern irqreturn_t qla2300_intr_handler(int, void *);
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extern irqreturn_t qla24xx_intr_handler(int, void *);
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2005-04-16 22:20:36 +00:00
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extern void qla2x00_process_response_queue(struct scsi_qla_host *);
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2005-10-27 18:09:48 +00:00
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extern void qla24xx_process_response_queue(struct scsi_qla_host *);
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2005-04-16 22:20:36 +00:00
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/*
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* Global Function Prototypes in qla_sup.c source file.
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*/
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extern void qla2x00_lock_nvram_access(scsi_qla_host_t *);
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extern void qla2x00_unlock_nvram_access(scsi_qla_host_t *);
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extern void qla2x00_release_nvram_protection(scsi_qla_host_t *);
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extern uint16_t qla2x00_get_nvram_word(scsi_qla_host_t *, uint32_t);
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extern void qla2x00_write_nvram_word(scsi_qla_host_t *, uint32_t, uint16_t);
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2005-07-06 17:31:07 +00:00
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extern uint32_t *qla24xx_read_flash_data(scsi_qla_host_t *, uint32_t *,
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uint32_t, uint32_t);
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extern uint8_t *qla2x00_read_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
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uint32_t);
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extern uint8_t *qla24xx_read_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
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uint32_t);
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extern int qla2x00_write_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
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uint32_t);
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extern int qla24xx_write_nvram_data(scsi_qla_host_t *, uint8_t *, uint32_t,
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uint32_t);
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2006-02-01 00:05:07 +00:00
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extern int qla2x00_beacon_on(struct scsi_qla_host *);
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extern int qla2x00_beacon_off(struct scsi_qla_host *);
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extern void qla2x00_beacon_blink(struct scsi_qla_host *);
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extern int qla24xx_beacon_on(struct scsi_qla_host *);
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extern int qla24xx_beacon_off(struct scsi_qla_host *);
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extern void qla24xx_beacon_blink(struct scsi_qla_host *);
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2006-02-01 00:05:17 +00:00
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extern uint8_t *qla2x00_read_optrom_data(struct scsi_qla_host *, uint8_t *,
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uint32_t, uint32_t);
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extern int qla2x00_write_optrom_data(struct scsi_qla_host *, uint8_t *,
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uint32_t, uint32_t);
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extern uint8_t *qla24xx_read_optrom_data(struct scsi_qla_host *, uint8_t *,
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uint32_t, uint32_t);
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extern int qla24xx_write_optrom_data(struct scsi_qla_host *, uint8_t *,
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uint32_t, uint32_t);
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2005-04-16 22:20:36 +00:00
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/*
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* Global Function Prototypes in qla_dbg.c source file.
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*/
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extern void qla2100_fw_dump(scsi_qla_host_t *, int);
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extern void qla2300_fw_dump(scsi_qla_host_t *, int);
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2005-07-06 17:30:36 +00:00
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extern void qla24xx_fw_dump(scsi_qla_host_t *, int);
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2005-04-16 22:20:36 +00:00
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extern void qla2x00_dump_regs(scsi_qla_host_t *);
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extern void qla2x00_dump_buffer(uint8_t *, uint32_t);
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extern void qla2x00_print_scsi_cmd(struct scsi_cmnd *);
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2005-07-06 17:30:36 +00:00
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extern void qla2x00_dump_pkt(void *);
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2005-04-16 22:20:36 +00:00
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/*
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* Global Function Prototypes in qla_gs.c source file.
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*/
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2005-07-06 17:30:47 +00:00
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extern void *qla2x00_prep_ms_iocb(scsi_qla_host_t *, uint32_t, uint32_t);
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extern void *qla24xx_prep_ms_iocb(scsi_qla_host_t *, uint32_t, uint32_t);
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2005-04-16 22:20:36 +00:00
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extern int qla2x00_ga_nxt(scsi_qla_host_t *, fc_port_t *);
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extern int qla2x00_gid_pt(scsi_qla_host_t *, sw_info_t *);
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extern int qla2x00_gpn_id(scsi_qla_host_t *, sw_info_t *);
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extern int qla2x00_gnn_id(scsi_qla_host_t *, sw_info_t *);
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extern int qla2x00_rft_id(scsi_qla_host_t *);
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extern int qla2x00_rff_id(scsi_qla_host_t *);
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extern int qla2x00_rnn_id(scsi_qla_host_t *);
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extern int qla2x00_rsnn_nn(scsi_qla_host_t *);
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2005-08-27 02:08:30 +00:00
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extern void *qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *, uint32_t, uint32_t);
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extern void *qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *, uint32_t, uint32_t);
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extern int qla2x00_fdmi_register(scsi_qla_host_t *);
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2006-10-02 19:00:43 +00:00
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extern int qla2x00_gfpn_id(scsi_qla_host_t *, sw_info_t *);
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extern int qla2x00_gpsc(scsi_qla_host_t *, sw_info_t *);
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2006-10-02 19:00:44 +00:00
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extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *);
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2005-04-16 22:20:36 +00:00
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2005-04-17 20:04:54 +00:00
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/*
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* Global Function Prototypes in qla_attr.c source file.
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*/
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2005-08-27 02:09:40 +00:00
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struct class_device_attribute;
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extern struct class_device_attribute *qla2x00_host_attrs[];
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2005-04-21 20:13:36 +00:00
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struct fc_function_template;
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extern struct fc_function_template qla2xxx_transport_functions;
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2005-04-17 20:04:54 +00:00
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extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
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extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *);
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extern void qla2x00_init_host_attr(scsi_qla_host_t *);
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extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
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extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *);
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2005-04-16 22:20:36 +00:00
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#endif /* _QLA_GBL_H */
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