473 lines
16 KiB
C
473 lines
16 KiB
C
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/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2009 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.emulex.com *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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#define LPFC_ACTIVE_MBOX_WAIT_CNT 100
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#define LPFC_RELEASE_NOTIFICATION_INTERVAL 32
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#define LPFC_GET_QE_REL_INT 32
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#define LPFC_RPI_LOW_WATER_MARK 10
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/* Number of SGL entries can be posted in a 4KB nonembedded mbox command */
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#define LPFC_NEMBED_MBOX_SGL_CNT 254
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/* Multi-queue arrangement for fast-path FCP work queues */
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#define LPFC_FN_EQN_MAX 8
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#define LPFC_SP_EQN_DEF 1
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#define LPFC_FP_EQN_DEF 1
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#define LPFC_FP_EQN_MIN 1
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#define LPFC_FP_EQN_MAX (LPFC_FN_EQN_MAX - LPFC_SP_EQN_DEF)
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#define LPFC_FN_WQN_MAX 32
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#define LPFC_SP_WQN_DEF 1
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#define LPFC_FP_WQN_DEF 4
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#define LPFC_FP_WQN_MIN 1
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#define LPFC_FP_WQN_MAX (LPFC_FN_WQN_MAX - LPFC_SP_WQN_DEF)
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/*
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* Provide the default FCF Record attributes used by the driver
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* when nonFIP mode is configured and there is no other default
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* FCF Record attributes.
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*/
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#define LPFC_FCOE_FCF_DEF_INDEX 0
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#define LPFC_FCOE_FCF_GET_FIRST 0xFFFF
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#define LPFC_FCOE_FCF_NEXT_NONE 0xFFFF
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/* First 3 bytes of default FCF MAC is specified by FC_MAP */
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#define LPFC_FCOE_FCF_MAC3 0xFF
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#define LPFC_FCOE_FCF_MAC4 0xFF
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#define LPFC_FCOE_FCF_MAC5 0xFE
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#define LPFC_FCOE_FCF_MAP0 0x0E
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#define LPFC_FCOE_FCF_MAP1 0xFC
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#define LPFC_FCOE_FCF_MAP2 0x00
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#define LPFC_FCOE_MAX_RCV_SIZE 0x5AC
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#define LPFC_FCOE_FKA_ADV_PER 0
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#define LPFC_FCOE_FIP_PRIORITY 0x80
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enum lpfc_sli4_queue_type {
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LPFC_EQ,
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LPFC_GCQ,
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LPFC_MCQ,
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LPFC_WCQ,
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LPFC_RCQ,
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LPFC_MQ,
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LPFC_WQ,
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LPFC_HRQ,
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LPFC_DRQ
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};
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/* The queue sub-type defines the functional purpose of the queue */
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enum lpfc_sli4_queue_subtype {
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LPFC_NONE,
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LPFC_MBOX,
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LPFC_FCP,
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LPFC_ELS,
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LPFC_USOL
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};
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union sli4_qe {
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void *address;
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struct lpfc_eqe *eqe;
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struct lpfc_cqe *cqe;
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struct lpfc_mcqe *mcqe;
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struct lpfc_wcqe_complete *wcqe_complete;
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struct lpfc_wcqe_release *wcqe_release;
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struct sli4_wcqe_xri_aborted *wcqe_xri_aborted;
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struct lpfc_rcqe_complete *rcqe_complete;
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struct lpfc_mqe *mqe;
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union lpfc_wqe *wqe;
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struct lpfc_rqe *rqe;
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};
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struct lpfc_queue {
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struct list_head list;
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enum lpfc_sli4_queue_type type;
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enum lpfc_sli4_queue_subtype subtype;
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struct lpfc_hba *phba;
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struct list_head child_list;
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uint32_t entry_count; /* Number of entries to support on the queue */
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uint32_t entry_size; /* Size of each queue entry. */
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uint32_t queue_id; /* Queue ID assigned by the hardware */
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struct list_head page_list;
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uint32_t page_count; /* Number of pages allocated for this queue */
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uint32_t host_index; /* The host's index for putting or getting */
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uint32_t hba_index; /* The last known hba index for get or put */
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union sli4_qe qe[1]; /* array to index entries (must be last) */
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};
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struct lpfc_cq_event {
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struct list_head list;
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union {
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struct lpfc_mcqe mcqe_cmpl;
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struct lpfc_acqe_link acqe_link;
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struct lpfc_acqe_fcoe acqe_fcoe;
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struct lpfc_acqe_dcbx acqe_dcbx;
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struct lpfc_rcqe rcqe_cmpl;
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struct sli4_wcqe_xri_aborted wcqe_axri;
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} cqe;
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};
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struct lpfc_sli4_link {
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uint8_t speed;
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uint8_t duplex;
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uint8_t status;
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uint8_t physical;
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uint8_t fault;
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};
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struct lpfc_fcf {
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uint8_t fabric_name[8];
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uint8_t switch_name[8];
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uint8_t mac_addr[6];
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uint16_t fcf_indx;
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uint16_t fcfi;
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uint32_t fcf_flag;
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#define FCF_AVAILABLE 0x01 /* FCF available for discovery */
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#define FCF_REGISTERED 0x02 /* FCF registered with FW */
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#define FCF_DISCOVERED 0x04 /* FCF discovery started */
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#define FCF_BOOT_ENABLE 0x08 /* Boot bios use this FCF */
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#define FCF_IN_USE 0x10 /* Atleast one discovery completed */
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#define FCF_VALID_VLAN 0x20 /* Use the vlan id specified */
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uint32_t priority;
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uint32_t addr_mode;
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uint16_t vlan_id;
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};
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#define LPFC_REGION23_SIGNATURE "RG23"
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#define LPFC_REGION23_VERSION 1
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#define LPFC_REGION23_LAST_REC 0xff
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#define DRIVER_SPECIFIC_TYPE 0xA2
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#define LINUX_DRIVER_ID 0x20
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#define PORT_STE_TYPE 0x1
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struct lpfc_fip_param_hdr {
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uint8_t type;
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#define FCOE_PARAM_TYPE 0xA0
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uint8_t length;
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#define FCOE_PARAM_LENGTH 2
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uint8_t parm_version;
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#define FIPP_VERSION 0x01
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uint8_t parm_flags;
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#define lpfc_fip_param_hdr_fipp_mode_SHIFT 6
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#define lpfc_fip_param_hdr_fipp_mode_MASK 0x3
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#define lpfc_fip_param_hdr_fipp_mode_WORD parm_flags
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#define FIPP_MODE_ON 0x2
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#define FIPP_MODE_OFF 0x0
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#define FIPP_VLAN_VALID 0x1
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};
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struct lpfc_fcoe_params {
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uint8_t fc_map[3];
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uint8_t reserved1;
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uint16_t vlan_tag;
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uint8_t reserved[2];
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};
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struct lpfc_fcf_conn_hdr {
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uint8_t type;
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#define FCOE_CONN_TBL_TYPE 0xA1
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uint8_t length; /* words */
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uint8_t reserved[2];
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};
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struct lpfc_fcf_conn_rec {
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uint16_t flags;
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#define FCFCNCT_VALID 0x0001
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#define FCFCNCT_BOOT 0x0002
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#define FCFCNCT_PRIMARY 0x0004 /* if not set, Secondary */
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#define FCFCNCT_FBNM_VALID 0x0008
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#define FCFCNCT_SWNM_VALID 0x0010
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#define FCFCNCT_VLAN_VALID 0x0020
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#define FCFCNCT_AM_VALID 0x0040
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#define FCFCNCT_AM_PREFERRED 0x0080 /* if not set, AM Required */
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#define FCFCNCT_AM_SPMA 0x0100 /* if not set, FPMA */
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uint16_t vlan_tag;
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uint8_t fabric_name[8];
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uint8_t switch_name[8];
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};
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struct lpfc_fcf_conn_entry {
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struct list_head list;
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struct lpfc_fcf_conn_rec conn_rec;
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};
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/*
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* Define the host's bootstrap mailbox. This structure contains
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* the member attributes needed to create, use, and destroy the
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* bootstrap mailbox region.
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*
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* The macro definitions for the bmbx data structure are defined
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* in lpfc_hw4.h with the register definition.
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*/
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struct lpfc_bmbx {
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struct lpfc_dmabuf *dmabuf;
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struct dma_address dma_address;
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void *avirt;
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dma_addr_t aphys;
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uint32_t bmbx_size;
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};
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#define LPFC_EQE_SIZE LPFC_EQE_SIZE_4
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#define LPFC_EQE_SIZE_4B 4
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#define LPFC_EQE_SIZE_16B 16
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#define LPFC_CQE_SIZE 16
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#define LPFC_WQE_SIZE 64
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#define LPFC_MQE_SIZE 256
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#define LPFC_RQE_SIZE 8
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#define LPFC_EQE_DEF_COUNT 1024
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#define LPFC_CQE_DEF_COUNT 256
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#define LPFC_WQE_DEF_COUNT 256
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#define LPFC_MQE_DEF_COUNT 16
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#define LPFC_RQE_DEF_COUNT 512
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#define LPFC_QUEUE_NOARM false
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#define LPFC_QUEUE_REARM true
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/*
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* SLI4 CT field defines
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*/
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#define SLI4_CT_RPI 0
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#define SLI4_CT_VPI 1
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#define SLI4_CT_VFI 2
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#define SLI4_CT_FCFI 3
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#define LPFC_SLI4_MAX_SEGMENT_SIZE 0x10000
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/*
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* SLI4 specific data structures
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*/
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struct lpfc_max_cfg_param {
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uint16_t max_xri;
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uint16_t xri_base;
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uint16_t xri_used;
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uint16_t max_rpi;
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uint16_t rpi_base;
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uint16_t rpi_used;
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uint16_t max_vpi;
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uint16_t vpi_base;
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uint16_t vpi_used;
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uint16_t max_vfi;
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uint16_t vfi_base;
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uint16_t vfi_used;
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uint16_t max_fcfi;
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uint16_t fcfi_base;
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uint16_t fcfi_used;
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uint16_t max_eq;
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uint16_t max_rq;
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uint16_t max_cq;
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uint16_t max_wq;
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};
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struct lpfc_hba;
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/* SLI4 HBA multi-fcp queue handler struct */
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struct lpfc_fcp_eq_hdl {
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uint32_t idx;
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struct lpfc_hba *phba;
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};
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/* SLI4 HBA data structure entries */
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struct lpfc_sli4_hba {
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void __iomem *conf_regs_memmap_p; /* Kernel memory mapped address for
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PCI BAR0, config space registers */
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void __iomem *ctrl_regs_memmap_p; /* Kernel memory mapped address for
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PCI BAR1, control registers */
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void __iomem *drbl_regs_memmap_p; /* Kernel memory mapped address for
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PCI BAR2, doorbell registers */
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/* BAR0 PCI config space register memory map */
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void __iomem *UERRLOregaddr; /* Address to UERR_STATUS_LO register */
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void __iomem *UERRHIregaddr; /* Address to UERR_STATUS_HI register */
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void __iomem *ONLINE0regaddr; /* Address to components of internal UE */
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void __iomem *ONLINE1regaddr; /* Address to components of internal UE */
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#define LPFC_ONLINE_NERR 0xFFFFFFFF
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void __iomem *SCRATCHPADregaddr; /* Address to scratchpad register */
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/* BAR1 FCoE function CSR register memory map */
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void __iomem *STAregaddr; /* Address to HST_STATE register */
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void __iomem *ISRregaddr; /* Address to HST_ISR register */
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void __iomem *IMRregaddr; /* Address to HST_IMR register */
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void __iomem *ISCRregaddr; /* Address to HST_ISCR register */
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/* BAR2 VF-0 doorbell register memory map */
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void __iomem *RQDBregaddr; /* Address to RQ_DOORBELL register */
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void __iomem *WQDBregaddr; /* Address to WQ_DOORBELL register */
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void __iomem *EQCQDBregaddr; /* Address to EQCQ_DOORBELL register */
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void __iomem *MQDBregaddr; /* Address to MQ_DOORBELL register */
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void __iomem *BMBXregaddr; /* Address to BootStrap MBX register */
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struct msix_entry *msix_entries;
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uint32_t cfg_eqn;
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struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
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/* Pointers to the constructed SLI4 queues */
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struct lpfc_queue **fp_eq; /* Fast-path event queue */
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struct lpfc_queue *sp_eq; /* Slow-path event queue */
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struct lpfc_queue **fcp_wq;/* Fast-path FCP work queue */
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struct lpfc_queue *mbx_wq; /* Slow-path MBOX work queue */
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struct lpfc_queue *els_wq; /* Slow-path ELS work queue */
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struct lpfc_queue *hdr_rq; /* Slow-path Header Receive queue */
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struct lpfc_queue *dat_rq; /* Slow-path Data Receive queue */
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struct lpfc_queue **fcp_cq;/* Fast-path FCP compl queue */
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struct lpfc_queue *mbx_cq; /* Slow-path mailbox complete queue */
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struct lpfc_queue *els_cq; /* Slow-path ELS response complete queue */
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struct lpfc_queue *rxq_cq; /* Slow-path unsolicited complete queue */
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/* Setup information for various queue parameters */
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int eq_esize;
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int eq_ecount;
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int cq_esize;
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int cq_ecount;
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int wq_esize;
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int wq_ecount;
|
||
|
|
int mq_esize;
|
||
|
|
int mq_ecount;
|
||
|
|
int rq_esize;
|
||
|
|
int rq_ecount;
|
||
|
|
#define LPFC_SP_EQ_MAX_INTR_SEC 10000
|
||
|
|
#define LPFC_FP_EQ_MAX_INTR_SEC 10000
|
||
|
|
|
||
|
|
uint32_t intr_enable;
|
||
|
|
struct lpfc_bmbx bmbx;
|
||
|
|
struct lpfc_max_cfg_param max_cfg_param;
|
||
|
|
uint16_t next_xri; /* last_xri - max_cfg_param.xri_base = used */
|
||
|
|
uint16_t next_rpi;
|
||
|
|
uint16_t scsi_xri_max;
|
||
|
|
uint16_t scsi_xri_cnt;
|
||
|
|
struct list_head lpfc_free_sgl_list;
|
||
|
|
struct list_head lpfc_sgl_list;
|
||
|
|
struct lpfc_sglq **lpfc_els_sgl_array;
|
||
|
|
struct list_head lpfc_abts_els_sgl_list;
|
||
|
|
struct lpfc_scsi_buf **lpfc_scsi_psb_array;
|
||
|
|
struct list_head lpfc_abts_scsi_buf_list;
|
||
|
|
uint32_t total_sglq_bufs;
|
||
|
|
struct lpfc_sglq **lpfc_sglq_active_list;
|
||
|
|
struct list_head lpfc_rpi_hdr_list;
|
||
|
|
unsigned long *rpi_bmask;
|
||
|
|
uint16_t rpi_count;
|
||
|
|
struct lpfc_sli4_flags sli4_flags;
|
||
|
|
struct list_head sp_rspiocb_work_queue;
|
||
|
|
struct list_head sp_cqe_event_pool;
|
||
|
|
struct list_head sp_asynce_work_queue;
|
||
|
|
struct list_head sp_fcp_xri_aborted_work_queue;
|
||
|
|
struct list_head sp_els_xri_aborted_work_queue;
|
||
|
|
struct list_head sp_unsol_work_queue;
|
||
|
|
struct lpfc_sli4_link link_state;
|
||
|
|
spinlock_t abts_scsi_buf_list_lock; /* list of aborted SCSI IOs */
|
||
|
|
spinlock_t abts_sgl_list_lock; /* list of aborted els IOs */
|
||
|
|
};
|
||
|
|
|
||
|
|
enum lpfc_sge_type {
|
||
|
|
GEN_BUFF_TYPE,
|
||
|
|
SCSI_BUFF_TYPE
|
||
|
|
};
|
||
|
|
|
||
|
|
struct lpfc_sglq {
|
||
|
|
/* lpfc_sglqs are used in double linked lists */
|
||
|
|
struct list_head list;
|
||
|
|
struct list_head clist;
|
||
|
|
enum lpfc_sge_type buff_type; /* is this a scsi sgl */
|
||
|
|
uint16_t iotag; /* pre-assigned IO tag */
|
||
|
|
uint16_t sli4_xritag; /* pre-assigned XRI, (OXID) tag. */
|
||
|
|
struct sli4_sge *sgl; /* pre-assigned SGL */
|
||
|
|
void *virt; /* virtual address. */
|
||
|
|
dma_addr_t phys; /* physical address */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct lpfc_rpi_hdr {
|
||
|
|
struct list_head list;
|
||
|
|
uint32_t len;
|
||
|
|
struct lpfc_dmabuf *dmabuf;
|
||
|
|
uint32_t page_count;
|
||
|
|
uint32_t start_rpi;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* SLI4 specific function prototypes
|
||
|
|
*/
|
||
|
|
int lpfc_pci_function_reset(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_hba_setup(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_hba_down(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_config(struct lpfc_hba *, struct lpfcMboxq *, uint8_t,
|
||
|
|
uint8_t, uint32_t, bool);
|
||
|
|
void lpfc_sli4_mbox_cmd_free(struct lpfc_hba *, struct lpfcMboxq *);
|
||
|
|
void lpfc_sli4_mbx_sge_set(struct lpfcMboxq *, uint32_t, dma_addr_t, uint32_t);
|
||
|
|
void lpfc_sli4_mbx_sge_get(struct lpfcMboxq *, uint32_t,
|
||
|
|
struct lpfc_mbx_sge *);
|
||
|
|
|
||
|
|
void lpfc_sli4_hba_reset(struct lpfc_hba *);
|
||
|
|
struct lpfc_queue *lpfc_sli4_queue_alloc(struct lpfc_hba *, uint32_t,
|
||
|
|
uint32_t);
|
||
|
|
void lpfc_sli4_queue_free(struct lpfc_queue *);
|
||
|
|
uint32_t lpfc_eq_create(struct lpfc_hba *, struct lpfc_queue *, uint16_t);
|
||
|
|
uint32_t lpfc_cq_create(struct lpfc_hba *, struct lpfc_queue *,
|
||
|
|
struct lpfc_queue *, uint32_t, uint32_t);
|
||
|
|
uint32_t lpfc_mq_create(struct lpfc_hba *, struct lpfc_queue *,
|
||
|
|
struct lpfc_queue *, uint32_t);
|
||
|
|
uint32_t lpfc_wq_create(struct lpfc_hba *, struct lpfc_queue *,
|
||
|
|
struct lpfc_queue *, uint32_t);
|
||
|
|
uint32_t lpfc_rq_create(struct lpfc_hba *, struct lpfc_queue *,
|
||
|
|
struct lpfc_queue *, struct lpfc_queue *, uint32_t);
|
||
|
|
uint32_t lpfc_eq_destroy(struct lpfc_hba *, struct lpfc_queue *);
|
||
|
|
uint32_t lpfc_cq_destroy(struct lpfc_hba *, struct lpfc_queue *);
|
||
|
|
uint32_t lpfc_mq_destroy(struct lpfc_hba *, struct lpfc_queue *);
|
||
|
|
uint32_t lpfc_wq_destroy(struct lpfc_hba *, struct lpfc_queue *);
|
||
|
|
uint32_t lpfc_rq_destroy(struct lpfc_hba *, struct lpfc_queue *,
|
||
|
|
struct lpfc_queue *);
|
||
|
|
int lpfc_sli4_queue_setup(struct lpfc_hba *);
|
||
|
|
void lpfc_sli4_queue_unset(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
|
||
|
|
int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *);
|
||
|
|
uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_post_sgl_list(struct lpfc_hba *phba);
|
||
|
|
int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *, struct list_head *, int);
|
||
|
|
struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
|
||
|
|
struct lpfc_cq_event *lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
|
||
|
|
void __lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
|
||
|
|
void lpfc_sli4_cq_event_release(struct lpfc_hba *, struct lpfc_cq_event *);
|
||
|
|
int lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_post_rpi_hdr(struct lpfc_hba *, struct lpfc_rpi_hdr *);
|
||
|
|
int lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *);
|
||
|
|
struct lpfc_rpi_hdr *lpfc_sli4_create_rpi_hdr(struct lpfc_hba *);
|
||
|
|
void lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_alloc_rpi(struct lpfc_hba *);
|
||
|
|
void lpfc_sli4_free_rpi(struct lpfc_hba *, int);
|
||
|
|
void lpfc_sli4_remove_rpis(struct lpfc_hba *);
|
||
|
|
void lpfc_sli4_async_event_proc(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_resume_rpi(struct lpfc_nodelist *);
|
||
|
|
void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *);
|
||
|
|
void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *);
|
||
|
|
void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *,
|
||
|
|
struct sli4_wcqe_xri_aborted *);
|
||
|
|
void lpfc_sli4_els_xri_aborted(struct lpfc_hba *,
|
||
|
|
struct sli4_wcqe_xri_aborted *);
|
||
|
|
int lpfc_sli4_brdreset(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_add_fcf_record(struct lpfc_hba *, struct fcf_record *);
|
||
|
|
void lpfc_sli_remove_dflt_fcf(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *);
|
||
|
|
int lpfc_sli4_init_vpi(struct lpfc_hba *, uint16_t);
|
||
|
|
uint32_t lpfc_sli4_cq_release(struct lpfc_queue *, bool);
|
||
|
|
uint32_t lpfc_sli4_eq_release(struct lpfc_queue *, bool);
|
||
|
|
void lpfc_sli4_fcfi_unreg(struct lpfc_hba *, uint16_t);
|
||
|
|
int lpfc_sli4_read_fcf_record(struct lpfc_hba *, uint16_t);
|
||
|
|
void lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *, LPFC_MBOXQ_t *);
|
||
|
|
int lpfc_sli4_post_status_check(struct lpfc_hba *);
|
||
|
|
uint8_t lpfc_sli4_mbox_opcode_get(struct lpfc_hba *, struct lpfcMboxq *);
|
||
|
|
|