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d4e06701b8
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (77 commits)
[SCSI] fix crash in scsi_dispatch_cmd()
[SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise
[SCSI] bnx2i: Fixed kernel panic due to illegal usage of sc->request->cpu
[SCSI] bfa: Update the driver version to 3.0.2.1
[SCSI] bfa: Driver and BSG enhancements.
[SCSI] bfa: Added support to query PHY.
[SCSI] bfa: Added HBA diagnostics support.
[SCSI] bfa: Added support for flash configuration
[SCSI] bfa: Added support to obtain SFP info.
[SCSI] bfa: Added support for CEE info and stats query.
[SCSI] bfa: Extend BSG interface.
[SCSI] bfa: FCS bug fixes.
[SCSI] bfa: DMA memory allocation enhancement.
[SCSI] bfa: Brocade-1860 Fabric Adapter vHBA support.
[SCSI] bfa: Brocade-1860 Fabric Adapter PLL init fixes.
[SCSI] bfa: Added Fabric Assigned Address(FAA) support
[SCSI] bfa: IOC bug fixes.
[SCSI] bfa: Enable ASIC block configuration and query.
[SCSI] bnx2i: Updated copyright and bump version
[SCSI] bnx2i: Modified to skip CNIC registration if iSCSI is not supported
...
Fix up some trivial conflicts in:
- drivers/scsi/bnx2fc/{bnx2fc.h,bnx2fc_fcoe.c}:
Crazy broadcom version number conflicts
- drivers/target/tcm_fc/tfc_cmd.c
Just trivial cleanups done on adjacent lines
530 lines
14 KiB
C
530 lines
14 KiB
C
#ifndef _BNX2FC_H_
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#define _BNX2FC_H_
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/* bnx2fc.h: Broadcom NetXtreme II Linux FCoE offload driver.
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*
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* Copyright (c) 2008 - 2010 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*
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* Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.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/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/types.h>
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#include <linux/list.h>
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#include <linux/delay.h>
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#include <linux/timer.h>
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#include <linux/errno.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/dma-mapping.h>
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#include <linux/workqueue.h>
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#include <linux/mutex.h>
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#include <linux/spinlock.h>
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#include <linux/bitops.h>
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#include <linux/log2.h>
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#include <linux/interrupt.h>
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#include <linux/sched.h>
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#include <linux/io.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_eh.h>
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#include <scsi/scsi_tcq.h>
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#include <scsi/libfc.h>
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#include <scsi/libfcoe.h>
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#include <scsi/fc_encode.h>
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#include <scsi/scsi_transport.h>
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#include <scsi/scsi_transport_fc.h>
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#include <scsi/fc/fc_fip.h>
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#include <scsi/fc/fc_fc2.h>
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#include <scsi/fc_frame.h>
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#include <scsi/fc/fc_fcoe.h>
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#include <scsi/fc/fc_fcp.h>
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#include "57xx_hsi_bnx2fc.h"
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#include "bnx2fc_debug.h"
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#include "../../net/cnic_if.h"
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#include "bnx2fc_constants.h"
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#define BNX2FC_NAME "bnx2fc"
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#define BNX2FC_VERSION "1.0.3"
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#define PFX "bnx2fc: "
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#define BNX2X_DOORBELL_PCI_BAR 2
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#define BNX2FC_MAX_BD_LEN 0xffff
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#define BNX2FC_BD_SPLIT_SZ 0x8000
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#define BNX2FC_MAX_BDS_PER_CMD 256
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#define BNX2FC_SQ_WQES_MAX 256
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#define BNX2FC_SCSI_MAX_SQES ((3 * BNX2FC_SQ_WQES_MAX) / 8)
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#define BNX2FC_TM_MAX_SQES ((BNX2FC_SQ_WQES_MAX) / 2)
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#define BNX2FC_ELS_MAX_SQES (BNX2FC_TM_MAX_SQES - 1)
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#define BNX2FC_RQ_WQES_MAX 16
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#define BNX2FC_CQ_WQES_MAX (BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX)
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#define BNX2FC_NUM_MAX_SESS 128
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#define BNX2FC_NUM_MAX_SESS_LOG (ilog2(BNX2FC_NUM_MAX_SESS))
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#define BNX2FC_MAX_OUTSTANDING_CMNDS 2048
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#define BNX2FC_CAN_QUEUE BNX2FC_MAX_OUTSTANDING_CMNDS
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#define BNX2FC_ELSTM_XIDS BNX2FC_CAN_QUEUE
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#define BNX2FC_MIN_PAYLOAD 256
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#define BNX2FC_MAX_PAYLOAD 2048
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#define BNX2FC_MFS \
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(BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header))
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#define BNX2FC_MINI_JUMBO_MTU 2500
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#define BNX2FC_RQ_BUF_SZ 256
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#define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ))
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#define BNX2FC_SQ_WQE_SIZE (sizeof(struct fcoe_sqe))
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#define BNX2FC_CQ_WQE_SIZE (sizeof(struct fcoe_cqe))
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#define BNX2FC_RQ_WQE_SIZE (BNX2FC_RQ_BUF_SZ)
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#define BNX2FC_XFERQ_WQE_SIZE (sizeof(struct fcoe_xfrqe))
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#define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe))
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#define BNX2FC_5771X_DB_PAGE_SIZE 128
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#define BNX2FC_MAX_TASKS \
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(BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS)
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#define BNX2FC_TASK_SIZE 128
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#define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE)
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#define BNX2FC_TASK_CTX_ARR_SZ (BNX2FC_MAX_TASKS/BNX2FC_TASKS_PER_PAGE)
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#define BNX2FC_MAX_ROWS_IN_HASH_TBL 8
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#define BNX2FC_HASH_TBL_CHUNK_SIZE (16 * 1024)
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#define BNX2FC_MAX_SEQS 255
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#define BNX2FC_READ (1 << 1)
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#define BNX2FC_WRITE (1 << 0)
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#define BNX2FC_MIN_XID 0
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#define BNX2FC_MAX_XID \
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(BNX2FC_MAX_OUTSTANDING_CMNDS + BNX2FC_ELSTM_XIDS - 1)
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#define FCOE_MIN_XID (BNX2FC_MAX_XID + 1)
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#define FCOE_MAX_XID (FCOE_MIN_XID + 4095)
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#define BNX2FC_MAX_LUN 0xFFFF
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#define BNX2FC_MAX_FCP_TGT 256
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#define BNX2FC_MAX_CMD_LEN 16
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#define BNX2FC_TM_TIMEOUT 60 /* secs */
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#define BNX2FC_IO_TIMEOUT 20000UL /* msecs */
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#define BNX2FC_WAIT_CNT 1200
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#define BNX2FC_FW_TIMEOUT (3 * HZ)
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#define PORT_MAX 2
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#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
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/* FC FCP Status */
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#define FC_GOOD 0
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#define BNX2FC_RNID_HBA 0x7
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/* bnx2fc driver uses only one instance of fcoe_percpu_s */
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extern struct fcoe_percpu_s bnx2fc_global;
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extern struct workqueue_struct *bnx2fc_wq;
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struct bnx2fc_percpu_s {
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struct task_struct *iothread;
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struct list_head work_list;
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spinlock_t fp_work_lock;
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};
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struct bnx2fc_hba {
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struct list_head link;
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struct cnic_dev *cnic;
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struct pci_dev *pcidev;
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struct net_device *netdev;
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struct net_device *phys_dev;
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unsigned long reg_with_cnic;
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#define BNX2FC_CNIC_REGISTERED 1
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struct packet_type fcoe_packet_type;
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struct packet_type fip_packet_type;
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struct bnx2fc_cmd_mgr *cmd_mgr;
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struct workqueue_struct *timer_work_queue;
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struct kref kref;
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spinlock_t hba_lock;
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struct mutex hba_mutex;
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unsigned long adapter_state;
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#define ADAPTER_STATE_UP 0
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#define ADAPTER_STATE_GOING_DOWN 1
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#define ADAPTER_STATE_LINK_DOWN 2
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#define ADAPTER_STATE_READY 3
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u32 flags;
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unsigned long init_done;
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#define BNX2FC_FW_INIT_DONE 0
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#define BNX2FC_CTLR_INIT_DONE 1
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#define BNX2FC_CREATE_DONE 2
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struct fcoe_ctlr ctlr;
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struct list_head vports;
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u8 vlan_enabled;
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int vlan_id;
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u32 next_conn_id;
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struct fcoe_task_ctx_entry **task_ctx;
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dma_addr_t *task_ctx_dma;
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struct regpair *task_ctx_bd_tbl;
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dma_addr_t task_ctx_bd_dma;
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int hash_tbl_segment_count;
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void **hash_tbl_segments;
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void *hash_tbl_pbl;
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dma_addr_t hash_tbl_pbl_dma;
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struct fcoe_t2_hash_table_entry *t2_hash_tbl;
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dma_addr_t t2_hash_tbl_dma;
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char *t2_hash_tbl_ptr;
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dma_addr_t t2_hash_tbl_ptr_dma;
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char *dummy_buffer;
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dma_addr_t dummy_buf_dma;
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struct fcoe_statistics_params *stats_buffer;
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dma_addr_t stats_buf_dma;
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/*
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* PCI related info.
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*/
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u16 pci_did;
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u16 pci_vid;
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u16 pci_sdid;
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u16 pci_svid;
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u16 pci_func;
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u16 pci_devno;
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struct task_struct *l2_thread;
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/* linkdown handling */
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wait_queue_head_t shutdown_wait;
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int wait_for_link_down;
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/*destroy handling */
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struct timer_list destroy_timer;
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wait_queue_head_t destroy_wait;
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/* Active list of offloaded sessions */
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struct bnx2fc_rport *tgt_ofld_list[BNX2FC_NUM_MAX_SESS];
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int num_ofld_sess;
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/* statistics */
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struct completion stat_req_done;
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};
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#define bnx2fc_from_ctlr(fip) container_of(fip, struct bnx2fc_hba, ctlr)
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struct bnx2fc_lport {
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struct list_head list;
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struct fc_lport *lport;
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};
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struct bnx2fc_cmd_mgr {
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struct bnx2fc_hba *hba;
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u16 next_idx;
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struct list_head *free_list;
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spinlock_t *free_list_lock;
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struct io_bdt **io_bdt_pool;
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struct bnx2fc_cmd **cmds;
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};
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struct bnx2fc_rport {
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struct fcoe_port *port;
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struct fc_rport *rport;
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struct fc_rport_priv *rdata;
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void __iomem *ctx_base;
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#define DPM_TRIGER_TYPE 0x40
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u32 fcoe_conn_id;
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u32 context_id;
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u32 sid;
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unsigned long flags;
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#define BNX2FC_FLAG_SESSION_READY 0x1
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#define BNX2FC_FLAG_OFFLOADED 0x2
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#define BNX2FC_FLAG_DISABLED 0x3
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#define BNX2FC_FLAG_DESTROYED 0x4
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#define BNX2FC_FLAG_OFLD_REQ_CMPL 0x5
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#define BNX2FC_FLAG_DESTROY_CMPL 0x6
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#define BNX2FC_FLAG_CTX_ALLOC_FAILURE 0x7
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#define BNX2FC_FLAG_UPLD_REQ_COMPL 0x8
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#define BNX2FC_FLAG_EXPL_LOGO 0x9
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u8 src_addr[ETH_ALEN];
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u32 max_sqes;
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u32 max_rqes;
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u32 max_cqes;
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atomic_t free_sqes;
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struct b577xx_doorbell_set_prod sq_db;
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struct b577xx_fcoe_rx_doorbell rx_db;
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struct fcoe_sqe *sq;
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dma_addr_t sq_dma;
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u16 sq_prod_idx;
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u8 sq_curr_toggle_bit;
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u32 sq_mem_size;
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struct fcoe_cqe *cq;
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dma_addr_t cq_dma;
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u16 cq_cons_idx;
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u8 cq_curr_toggle_bit;
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u32 cq_mem_size;
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void *rq;
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dma_addr_t rq_dma;
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u32 rq_prod_idx;
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u32 rq_cons_idx;
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u32 rq_mem_size;
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void *rq_pbl;
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dma_addr_t rq_pbl_dma;
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u32 rq_pbl_size;
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struct fcoe_xfrqe *xferq;
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dma_addr_t xferq_dma;
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u32 xferq_mem_size;
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struct fcoe_confqe *confq;
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dma_addr_t confq_dma;
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u32 confq_mem_size;
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void *confq_pbl;
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dma_addr_t confq_pbl_dma;
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u32 confq_pbl_size;
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struct fcoe_conn_db *conn_db;
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dma_addr_t conn_db_dma;
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u32 conn_db_mem_size;
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struct fcoe_sqe *lcq;
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dma_addr_t lcq_dma;
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u32 lcq_mem_size;
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void *ofld_req[4];
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dma_addr_t ofld_req_dma[4];
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void *enbl_req;
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dma_addr_t enbl_req_dma;
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spinlock_t tgt_lock;
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spinlock_t cq_lock;
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atomic_t num_active_ios;
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u32 flush_in_prog;
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unsigned long work_time_slice;
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unsigned long timestamp;
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struct list_head free_task_list;
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struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
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atomic_t pi;
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atomic_t ci;
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struct list_head active_cmd_queue;
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struct list_head els_queue;
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struct list_head io_retire_queue;
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struct list_head active_tm_queue;
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struct timer_list ofld_timer;
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wait_queue_head_t ofld_wait;
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struct timer_list upld_timer;
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wait_queue_head_t upld_wait;
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};
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struct bnx2fc_mp_req {
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u8 tm_flags;
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u32 req_len;
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void *req_buf;
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dma_addr_t req_buf_dma;
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struct fcoe_bd_ctx *mp_req_bd;
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dma_addr_t mp_req_bd_dma;
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struct fc_frame_header req_fc_hdr;
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u32 resp_len;
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void *resp_buf;
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dma_addr_t resp_buf_dma;
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struct fcoe_bd_ctx *mp_resp_bd;
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dma_addr_t mp_resp_bd_dma;
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struct fc_frame_header resp_fc_hdr;
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};
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struct bnx2fc_els_cb_arg {
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struct bnx2fc_cmd *aborted_io_req;
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struct bnx2fc_cmd *io_req;
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u16 l2_oxid;
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};
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/* bnx2fc command structure */
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struct bnx2fc_cmd {
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struct list_head link;
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u8 on_active_queue;
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u8 on_tmf_queue;
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u8 cmd_type;
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#define BNX2FC_SCSI_CMD 1
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#define BNX2FC_TASK_MGMT_CMD 2
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#define BNX2FC_ABTS 3
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#define BNX2FC_ELS 4
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#define BNX2FC_CLEANUP 5
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u8 io_req_flags;
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struct kref refcount;
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struct fcoe_port *port;
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struct bnx2fc_rport *tgt;
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struct scsi_cmnd *sc_cmd;
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struct bnx2fc_cmd_mgr *cmd_mgr;
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struct bnx2fc_mp_req mp_req;
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void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg);
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struct bnx2fc_els_cb_arg *cb_arg;
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struct delayed_work timeout_work; /* timer for ULP timeouts */
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struct completion tm_done;
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int wait_for_comp;
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u16 xid;
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struct fcoe_task_ctx_entry *task;
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struct io_bdt *bd_tbl;
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struct fcp_rsp *rsp;
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size_t data_xfer_len;
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unsigned long req_flags;
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#define BNX2FC_FLAG_ISSUE_RRQ 0x1
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#define BNX2FC_FLAG_ISSUE_ABTS 0x2
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#define BNX2FC_FLAG_ABTS_DONE 0x3
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#define BNX2FC_FLAG_TM_COMPL 0x4
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#define BNX2FC_FLAG_TM_TIMEOUT 0x5
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#define BNX2FC_FLAG_IO_CLEANUP 0x6
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#define BNX2FC_FLAG_RETIRE_OXID 0x7
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#define BNX2FC_FLAG_EH_ABORT 0x8
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#define BNX2FC_FLAG_IO_COMPL 0x9
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#define BNX2FC_FLAG_ELS_DONE 0xa
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#define BNX2FC_FLAG_ELS_TIMEOUT 0xb
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u32 fcp_resid;
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u32 fcp_rsp_len;
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u32 fcp_sns_len;
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u8 cdb_status; /* SCSI IO status */
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u8 fcp_status; /* FCP IO status */
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u8 fcp_rsp_code;
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u8 scsi_comp_flags;
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};
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struct io_bdt {
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struct bnx2fc_cmd *io_req;
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struct fcoe_bd_ctx *bd_tbl;
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dma_addr_t bd_tbl_dma;
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u16 bd_valid;
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};
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struct bnx2fc_work {
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struct list_head list;
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struct bnx2fc_rport *tgt;
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u16 wqe;
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};
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struct bnx2fc_unsol_els {
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struct fc_lport *lport;
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struct fc_frame *fp;
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struct bnx2fc_hba *hba;
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struct work_struct unsol_els_work;
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};
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struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
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void bnx2fc_cmd_release(struct kref *ref);
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int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
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int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
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int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
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int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
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struct bnx2fc_rport *tgt);
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int bnx2fc_send_session_disable_req(struct fcoe_port *port,
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struct bnx2fc_rport *tgt);
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int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
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struct bnx2fc_rport *tgt);
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int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
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void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
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u32 num_cqe);
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int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
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void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
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int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
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void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
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struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba,
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u16 min_xid, u16 max_xid);
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void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
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void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
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char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
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void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
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int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
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int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
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int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
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int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
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int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
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int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
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int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
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void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
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unsigned int timer_msec);
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int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
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void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
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struct fcoe_task_ctx_entry *task,
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u16 orig_xid);
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void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
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struct fcoe_task_ctx_entry *task);
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void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
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struct fcoe_task_ctx_entry *task);
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void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
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void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
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int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
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int bnx2fc_eh_host_reset(struct scsi_cmnd *sc_cmd);
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int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
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int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
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void bnx2fc_rport_event_handler(struct fc_lport *lport,
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struct fc_rport_priv *rport,
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enum fc_rport_event event);
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void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
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struct fcoe_task_ctx_entry *task,
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u8 num_rq);
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void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
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struct fcoe_task_ctx_entry *task,
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u8 num_rq);
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void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
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struct fcoe_task_ctx_entry *task,
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u8 num_rq);
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void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
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struct fcoe_task_ctx_entry *task,
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u8 num_rq);
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void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
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struct fcoe_task_ctx_entry *task,
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u8 num_rq);
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void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
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struct fcp_cmnd *fcp_cmnd);
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void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
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struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
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struct fc_frame *fp, unsigned int op,
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void (*resp)(struct fc_seq *,
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struct fc_frame *,
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void *),
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void *arg, u32 timeout);
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void bnx2fc_arm_cq(struct bnx2fc_rport *tgt);
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int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
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void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe);
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struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
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u32 port_id);
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void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
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unsigned char *buf,
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u32 frame_len, u16 l2_oxid);
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int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
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#endif
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