1108 lines
32 KiB
C
1108 lines
32 KiB
C
/*
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* Copyright (C) 2004 - 2010 Vladislav Bolkhovitin <vst@vlnb.net>
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* Copyright (C) 2004 - 2005 Leonid Stoljar
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* Copyright (C) 2006 Nathaniel Clark <nate@misrule.us>
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* Copyright (C) 2007 - 2010 ID7 Ltd.
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*
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* Forward port and refactoring to modern qla2xxx and target/configfs
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*
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* Copyright (C) 2010-2011 Nicholas A. Bellinger <nab@kernel.org>
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*
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* Additional file for the target driver support.
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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 the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/*
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* This is the global def file that is useful for including from the
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* target portion.
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*/
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#ifndef __QLA_TARGET_H
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#define __QLA_TARGET_H
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#include "qla_def.h"
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/*
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* Must be changed on any change in any initiator visible interfaces or
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* data in the target add-on
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*/
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#define QLA2XXX_TARGET_MAGIC 269
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/*
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* Must be changed on any change in any target visible interfaces or
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* data in the initiator
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*/
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#define QLA2XXX_INITIATOR_MAGIC 57222
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#define QLA2XXX_INI_MODE_STR_EXCLUSIVE "exclusive"
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#define QLA2XXX_INI_MODE_STR_DISABLED "disabled"
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#define QLA2XXX_INI_MODE_STR_ENABLED "enabled"
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#define QLA2XXX_INI_MODE_STR_DUAL "dual"
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#define QLA2XXX_INI_MODE_EXCLUSIVE 0
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#define QLA2XXX_INI_MODE_DISABLED 1
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#define QLA2XXX_INI_MODE_ENABLED 2
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#define QLA2XXX_INI_MODE_DUAL 3
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#define QLA2XXX_COMMAND_COUNT_INIT 250
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#define QLA2XXX_IMMED_NOTIFY_COUNT_INIT 250
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/*
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* Used to mark which completion handles (for RIO Status's) are for CTIO's
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* vs. regular (non-target) info. This is checked for in
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* qla2x00_process_response_queue() to see if a handle coming back in a
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* multi-complete should come to the tgt driver or be handled there by qla2xxx
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*/
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#define CTIO_COMPLETION_HANDLE_MARK BIT_29
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#if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)
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#error "CTIO_COMPLETION_HANDLE_MARK not larger than "
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"DEFAULT_OUTSTANDING_COMMANDS"
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#endif
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#define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)
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/* Used to mark CTIO as intermediate */
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#define CTIO_INTERMEDIATE_HANDLE_MARK BIT_30
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#define QLA_TGT_NULL_HANDLE 0
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#define QLA_TGT_HANDLE_MASK 0xF0000000
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#define QLA_QPID_HANDLE_MASK 0x00FF0000 /* qpair id mask */
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#define QLA_CMD_HANDLE_MASK 0x0000FFFF
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#define QLA_TGT_SKIP_HANDLE (0xFFFFFFFF & ~QLA_TGT_HANDLE_MASK)
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#define QLA_QPID_HANDLE_SHIFT 16
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#define GET_QID(_h) ((_h & QLA_QPID_HANDLE_MASK) >> QLA_QPID_HANDLE_SHIFT)
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#ifndef OF_SS_MODE_0
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/*
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* ISP target entries - Flags bit definitions.
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*/
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#define OF_SS_MODE_0 0
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#define OF_SS_MODE_1 1
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#define OF_SS_MODE_2 2
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#define OF_SS_MODE_3 3
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#define OF_EXPL_CONF BIT_5 /* Explicit Confirmation Requested */
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#define OF_DATA_IN BIT_6 /* Data in to initiator */
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/* (data from target to initiator) */
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#define OF_DATA_OUT BIT_7 /* Data out from initiator */
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/* (data from initiator to target) */
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#define OF_NO_DATA (BIT_7 | BIT_6)
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#define OF_INC_RC BIT_8 /* Increment command resource count */
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#define OF_FAST_POST BIT_9 /* Enable mailbox fast posting. */
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#define OF_CONF_REQ BIT_13 /* Confirmation Requested */
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#define OF_TERM_EXCH BIT_14 /* Terminate exchange */
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#define OF_SSTS BIT_15 /* Send SCSI status */
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#endif
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#ifndef QLA_TGT_DATASEGS_PER_CMD32
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#define QLA_TGT_DATASEGS_PER_CMD32 3
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#define QLA_TGT_DATASEGS_PER_CONT32 7
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#define QLA_TGT_MAX_SG32(ql) \
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(((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD32 + \
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QLA_TGT_DATASEGS_PER_CONT32*((ql) - 1)) : 0)
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#define QLA_TGT_DATASEGS_PER_CMD64 2
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#define QLA_TGT_DATASEGS_PER_CONT64 5
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#define QLA_TGT_MAX_SG64(ql) \
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(((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD64 + \
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QLA_TGT_DATASEGS_PER_CONT64*((ql) - 1)) : 0)
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#endif
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#ifndef QLA_TGT_DATASEGS_PER_CMD_24XX
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#define QLA_TGT_DATASEGS_PER_CMD_24XX 1
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#define QLA_TGT_DATASEGS_PER_CONT_24XX 5
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#define QLA_TGT_MAX_SG_24XX(ql) \
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(min(1270, ((ql) > 0) ? (QLA_TGT_DATASEGS_PER_CMD_24XX + \
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QLA_TGT_DATASEGS_PER_CONT_24XX*((ql) - 1)) : 0))
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#endif
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#endif
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#define GET_TARGET_ID(ha, iocb) ((HAS_EXTENDED_IDS(ha)) \
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? le16_to_cpu((iocb)->u.isp2x.target.extended) \
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: (uint16_t)(iocb)->u.isp2x.target.id.standard)
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#ifndef NOTIFY_ACK_TYPE
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#define NOTIFY_ACK_TYPE 0x0E /* Notify acknowledge entry. */
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/*
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* ISP queue - notify acknowledge entry structure definition.
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* This is sent to the ISP from the target driver.
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*/
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struct nack_to_isp {
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uint8_t entry_type; /* Entry type. */
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uint8_t entry_count; /* Entry count. */
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uint8_t sys_define; /* System defined. */
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uint8_t entry_status; /* Entry Status. */
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union {
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struct {
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uint32_t sys_define_2; /* System defined. */
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target_id_t target;
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uint8_t target_id;
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uint8_t reserved_1;
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uint16_t flags;
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uint16_t resp_code;
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uint16_t status;
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uint16_t task_flags;
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uint16_t seq_id;
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uint16_t srr_rx_id;
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uint32_t srr_rel_offs;
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uint16_t srr_ui;
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uint16_t srr_flags;
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uint16_t srr_reject_code;
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uint8_t srr_reject_vendor_uniq;
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uint8_t srr_reject_code_expl;
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uint8_t reserved_2[24];
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} isp2x;
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struct {
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uint32_t handle;
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uint16_t nport_handle;
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uint16_t reserved_1;
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uint16_t flags;
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uint16_t srr_rx_id;
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uint16_t status;
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uint8_t status_subcode;
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uint8_t fw_handle;
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uint32_t exchange_address;
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uint32_t srr_rel_offs;
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uint16_t srr_ui;
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uint16_t srr_flags;
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uint8_t reserved_4[19];
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uint8_t vp_index;
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uint8_t srr_reject_vendor_uniq;
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uint8_t srr_reject_code_expl;
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uint8_t srr_reject_code;
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uint8_t reserved_5[5];
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} isp24;
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} u;
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uint8_t reserved[2];
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uint16_t ox_id;
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} __packed;
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#define NOTIFY_ACK_FLAGS_TERMINATE BIT_3
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#define NOTIFY_ACK_SRR_FLAGS_ACCEPT 0
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#define NOTIFY_ACK_SRR_FLAGS_REJECT 1
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#define NOTIFY_ACK_SRR_REJECT_REASON_UNABLE_TO_PERFORM 0x9
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#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_NO_EXPL 0
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#define NOTIFY_ACK_SRR_FLAGS_REJECT_EXPL_UNABLE_TO_SUPPLY_DATA 0x2a
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#define NOTIFY_ACK_SUCCESS 0x01
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#endif
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#ifndef ACCEPT_TGT_IO_TYPE
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#define ACCEPT_TGT_IO_TYPE 0x16 /* Accept target I/O entry. */
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#endif
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#ifndef CONTINUE_TGT_IO_TYPE
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#define CONTINUE_TGT_IO_TYPE 0x17
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/*
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* ISP queue - Continue Target I/O (CTIO) entry for status mode 0 structure.
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* This structure is sent to the ISP 2xxx from target driver.
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*/
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struct ctio_to_2xxx {
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uint8_t entry_type; /* Entry type. */
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uint8_t entry_count; /* Entry count. */
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uint8_t sys_define; /* System defined. */
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uint8_t entry_status; /* Entry Status. */
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uint32_t handle; /* System defined handle */
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target_id_t target;
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uint16_t rx_id;
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uint16_t flags;
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uint16_t status;
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uint16_t timeout; /* 0 = 30 seconds, 0xFFFF = disable */
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uint16_t dseg_count; /* Data segment count. */
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uint32_t relative_offset;
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uint32_t residual;
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uint16_t reserved_1[3];
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uint16_t scsi_status;
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uint32_t transfer_length;
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uint32_t dseg_0_address; /* Data segment 0 address. */
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uint32_t dseg_0_length; /* Data segment 0 length. */
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uint32_t dseg_1_address; /* Data segment 1 address. */
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uint32_t dseg_1_length; /* Data segment 1 length. */
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uint32_t dseg_2_address; /* Data segment 2 address. */
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uint32_t dseg_2_length; /* Data segment 2 length. */
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} __packed;
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#define ATIO_PATH_INVALID 0x07
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#define ATIO_CANT_PROV_CAP 0x16
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#define ATIO_CDB_VALID 0x3D
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#define ATIO_EXEC_READ BIT_1
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#define ATIO_EXEC_WRITE BIT_0
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#endif
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#ifndef CTIO_A64_TYPE
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#define CTIO_A64_TYPE 0x1F
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#define CTIO_SUCCESS 0x01
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#define CTIO_ABORTED 0x02
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#define CTIO_INVALID_RX_ID 0x08
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#define CTIO_TIMEOUT 0x0B
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#define CTIO_DIF_ERROR 0x0C /* DIF error detected */
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#define CTIO_LIP_RESET 0x0E
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#define CTIO_TARGET_RESET 0x17
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#define CTIO_PORT_UNAVAILABLE 0x28
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#define CTIO_PORT_LOGGED_OUT 0x29
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#define CTIO_PORT_CONF_CHANGED 0x2A
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#define CTIO_SRR_RECEIVED 0x45
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#endif
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#ifndef CTIO_RET_TYPE
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#define CTIO_RET_TYPE 0x17 /* CTIO return entry */
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#define ATIO_TYPE7 0x06 /* Accept target I/O entry for 24xx */
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struct fcp_hdr {
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uint8_t r_ctl;
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uint8_t d_id[3];
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uint8_t cs_ctl;
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uint8_t s_id[3];
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uint8_t type;
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uint8_t f_ctl[3];
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uint8_t seq_id;
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uint8_t df_ctl;
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uint16_t seq_cnt;
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__be16 ox_id;
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uint16_t rx_id;
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uint32_t parameter;
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} __packed;
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struct fcp_hdr_le {
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uint8_t d_id[3];
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uint8_t r_ctl;
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uint8_t s_id[3];
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uint8_t cs_ctl;
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uint8_t f_ctl[3];
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uint8_t type;
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uint16_t seq_cnt;
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uint8_t df_ctl;
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uint8_t seq_id;
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uint16_t rx_id;
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uint16_t ox_id;
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uint32_t parameter;
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} __packed;
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#define F_CTL_EXCH_CONTEXT_RESP BIT_23
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#define F_CTL_SEQ_CONTEXT_RESIP BIT_22
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#define F_CTL_LAST_SEQ BIT_20
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#define F_CTL_END_SEQ BIT_19
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#define F_CTL_SEQ_INITIATIVE BIT_16
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#define R_CTL_BASIC_LINK_SERV 0x80
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#define R_CTL_B_ACC 0x4
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#define R_CTL_B_RJT 0x5
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struct atio7_fcp_cmnd {
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uint64_t lun;
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uint8_t cmnd_ref;
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uint8_t task_attr:3;
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uint8_t reserved:5;
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uint8_t task_mgmt_flags;
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#define FCP_CMND_TASK_MGMT_CLEAR_ACA 6
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#define FCP_CMND_TASK_MGMT_TARGET_RESET 5
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#define FCP_CMND_TASK_MGMT_LU_RESET 4
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#define FCP_CMND_TASK_MGMT_CLEAR_TASK_SET 2
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#define FCP_CMND_TASK_MGMT_ABORT_TASK_SET 1
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uint8_t wrdata:1;
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uint8_t rddata:1;
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uint8_t add_cdb_len:6;
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uint8_t cdb[16];
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/*
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* add_cdb is optional and can absent from struct atio7_fcp_cmnd. Size 4
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* only to make sizeof(struct atio7_fcp_cmnd) be as expected by
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* BUILD_BUG_ON in qlt_init().
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*/
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uint8_t add_cdb[4];
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/* uint32_t data_length; */
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} __packed;
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/*
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* ISP queue - Accept Target I/O (ATIO) type entry IOCB structure.
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* This is sent from the ISP to the target driver.
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*/
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struct atio_from_isp {
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union {
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struct {
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uint16_t entry_hdr;
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uint8_t sys_define; /* System defined. */
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uint8_t entry_status; /* Entry Status. */
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uint32_t sys_define_2; /* System defined. */
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target_id_t target;
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uint16_t rx_id;
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uint16_t flags;
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uint16_t status;
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uint8_t command_ref;
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uint8_t task_codes;
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uint8_t task_flags;
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uint8_t execution_codes;
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uint8_t cdb[MAX_CMDSZ];
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uint32_t data_length;
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uint16_t lun;
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uint8_t initiator_port_name[WWN_SIZE]; /* on qla23xx */
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uint16_t reserved_32[6];
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uint16_t ox_id;
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} isp2x;
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struct {
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uint16_t entry_hdr;
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uint8_t fcp_cmnd_len_low;
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uint8_t fcp_cmnd_len_high:4;
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uint8_t attr:4;
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uint32_t exchange_addr;
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#define ATIO_EXCHANGE_ADDRESS_UNKNOWN 0xFFFFFFFF
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struct fcp_hdr fcp_hdr;
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struct atio7_fcp_cmnd fcp_cmnd;
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} isp24;
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struct {
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uint8_t entry_type; /* Entry type. */
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uint8_t entry_count; /* Entry count. */
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__le16 attr_n_length;
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#define FCP_CMD_LENGTH_MASK 0x0fff
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#define FCP_CMD_LENGTH_MIN 0x38
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uint8_t data[56];
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uint32_t signature;
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#define ATIO_PROCESSED 0xDEADDEAD /* Signature */
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} raw;
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} u;
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} __packed;
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static inline int fcpcmd_is_corrupted(struct atio *atio)
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{
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if (atio->entry_type == ATIO_TYPE7 &&
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(le16_to_cpu(atio->attr_n_length & FCP_CMD_LENGTH_MASK) <
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FCP_CMD_LENGTH_MIN))
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return 1;
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else
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return 0;
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}
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/* adjust corrupted atio so we won't trip over the same entry again. */
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static inline void adjust_corrupted_atio(struct atio_from_isp *atio)
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{
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atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);
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atio->u.isp24.fcp_cmnd.add_cdb_len = 0;
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}
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static inline int get_datalen_for_atio(struct atio_from_isp *atio)
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{
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int len = atio->u.isp24.fcp_cmnd.add_cdb_len;
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return (be32_to_cpu(get_unaligned((uint32_t *)
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&atio->u.isp24.fcp_cmnd.add_cdb[len * 4])));
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}
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#define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
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/*
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* ISP queue - Continue Target I/O (ATIO) type 7 entry (for 24xx) structure.
|
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* This structure is sent to the ISP 24xx from the target driver.
|
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*/
|
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struct ctio7_to_24xx {
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uint8_t entry_type; /* Entry type. */
|
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uint8_t entry_count; /* Entry count. */
|
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uint8_t sys_define; /* System defined. */
|
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uint8_t entry_status; /* Entry Status. */
|
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uint32_t handle; /* System defined handle */
|
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uint16_t nport_handle;
|
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#define CTIO7_NHANDLE_UNRECOGNIZED 0xFFFF
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uint16_t timeout;
|
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uint16_t dseg_count; /* Data segment count. */
|
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uint8_t vp_index;
|
|
uint8_t add_flags;
|
|
uint8_t initiator_id[3];
|
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uint8_t reserved;
|
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uint32_t exchange_addr;
|
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union {
|
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struct {
|
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uint16_t reserved1;
|
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__le16 flags;
|
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uint32_t residual;
|
|
__le16 ox_id;
|
|
uint16_t scsi_status;
|
|
uint32_t relative_offset;
|
|
uint32_t reserved2;
|
|
uint32_t transfer_length;
|
|
uint32_t reserved3;
|
|
/* Data segment 0 address. */
|
|
uint32_t dseg_0_address[2];
|
|
/* Data segment 0 length. */
|
|
uint32_t dseg_0_length;
|
|
} status0;
|
|
struct {
|
|
uint16_t sense_length;
|
|
__le16 flags;
|
|
uint32_t residual;
|
|
__le16 ox_id;
|
|
uint16_t scsi_status;
|
|
uint16_t response_len;
|
|
uint16_t reserved;
|
|
uint8_t sense_data[24];
|
|
} status1;
|
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} u;
|
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} __packed;
|
|
|
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/*
|
|
* ISP queue - CTIO type 7 from ISP 24xx to target driver
|
|
* returned entry structure.
|
|
*/
|
|
struct ctio7_from_24xx {
|
|
uint8_t entry_type; /* Entry type. */
|
|
uint8_t entry_count; /* Entry count. */
|
|
uint8_t sys_define; /* System defined. */
|
|
uint8_t entry_status; /* Entry Status. */
|
|
uint32_t handle; /* System defined handle */
|
|
uint16_t status;
|
|
uint16_t timeout;
|
|
uint16_t dseg_count; /* Data segment count. */
|
|
uint8_t vp_index;
|
|
uint8_t reserved1[5];
|
|
uint32_t exchange_address;
|
|
uint16_t reserved2;
|
|
uint16_t flags;
|
|
uint32_t residual;
|
|
uint16_t ox_id;
|
|
uint16_t reserved3;
|
|
uint32_t relative_offset;
|
|
uint8_t reserved4[24];
|
|
} __packed;
|
|
|
|
/* CTIO7 flags values */
|
|
#define CTIO7_FLAGS_SEND_STATUS BIT_15
|
|
#define CTIO7_FLAGS_TERMINATE BIT_14
|
|
#define CTIO7_FLAGS_CONFORM_REQ BIT_13
|
|
#define CTIO7_FLAGS_DONT_RET_CTIO BIT_8
|
|
#define CTIO7_FLAGS_STATUS_MODE_0 0
|
|
#define CTIO7_FLAGS_STATUS_MODE_1 BIT_6
|
|
#define CTIO7_FLAGS_STATUS_MODE_2 BIT_7
|
|
#define CTIO7_FLAGS_EXPLICIT_CONFORM BIT_5
|
|
#define CTIO7_FLAGS_CONFIRM_SATISF BIT_4
|
|
#define CTIO7_FLAGS_DSD_PTR BIT_2
|
|
#define CTIO7_FLAGS_DATA_IN BIT_1 /* data to initiator */
|
|
#define CTIO7_FLAGS_DATA_OUT BIT_0 /* data from initiator */
|
|
|
|
#define ELS_PLOGI 0x3
|
|
#define ELS_FLOGI 0x4
|
|
#define ELS_LOGO 0x5
|
|
#define ELS_PRLI 0x20
|
|
#define ELS_PRLO 0x21
|
|
#define ELS_TPRLO 0x24
|
|
#define ELS_PDISC 0x50
|
|
#define ELS_ADISC 0x52
|
|
|
|
/*
|
|
*CTIO Type CRC_2 IOCB
|
|
*/
|
|
struct ctio_crc2_to_fw {
|
|
uint8_t entry_type; /* Entry type. */
|
|
#define CTIO_CRC2 0x7A
|
|
uint8_t entry_count; /* Entry count. */
|
|
uint8_t sys_define; /* System defined. */
|
|
uint8_t entry_status; /* Entry Status. */
|
|
|
|
uint32_t handle; /* System handle. */
|
|
uint16_t nport_handle; /* N_PORT handle. */
|
|
__le16 timeout; /* Command timeout. */
|
|
|
|
uint16_t dseg_count; /* Data segment count. */
|
|
uint8_t vp_index;
|
|
uint8_t add_flags; /* additional flags */
|
|
#define CTIO_CRC2_AF_DIF_DSD_ENA BIT_3
|
|
|
|
uint8_t initiator_id[3]; /* initiator ID */
|
|
uint8_t reserved1;
|
|
uint32_t exchange_addr; /* rcv exchange address */
|
|
uint16_t reserved2;
|
|
__le16 flags; /* refer to CTIO7 flags values */
|
|
uint32_t residual;
|
|
__le16 ox_id;
|
|
uint16_t scsi_status;
|
|
__le32 relative_offset;
|
|
uint32_t reserved5;
|
|
__le32 transfer_length; /* total fc transfer length */
|
|
uint32_t reserved6;
|
|
__le32 crc_context_address[2];/* Data segment address. */
|
|
uint16_t crc_context_len; /* Data segment length. */
|
|
uint16_t reserved_1; /* MUST be set to 0. */
|
|
} __packed;
|
|
|
|
/* CTIO Type CRC_x Status IOCB */
|
|
struct ctio_crc_from_fw {
|
|
uint8_t entry_type; /* Entry type. */
|
|
uint8_t entry_count; /* Entry count. */
|
|
uint8_t sys_define; /* System defined. */
|
|
uint8_t entry_status; /* Entry Status. */
|
|
|
|
uint32_t handle; /* System handle. */
|
|
uint16_t status;
|
|
uint16_t timeout; /* Command timeout. */
|
|
uint16_t dseg_count; /* Data segment count. */
|
|
uint32_t reserved1;
|
|
uint16_t state_flags;
|
|
#define CTIO_CRC_SF_DIF_CHOPPED BIT_4
|
|
|
|
uint32_t exchange_address; /* rcv exchange address */
|
|
uint16_t reserved2;
|
|
uint16_t flags;
|
|
uint32_t resid_xfer_length;
|
|
uint16_t ox_id;
|
|
uint8_t reserved3[12];
|
|
uint16_t runt_guard; /* reported runt blk guard */
|
|
uint8_t actual_dif[8];
|
|
uint8_t expected_dif[8];
|
|
} __packed;
|
|
|
|
/*
|
|
* ISP queue - ABTS received/response entries structure definition for 24xx.
|
|
*/
|
|
#define ABTS_RECV_24XX 0x54 /* ABTS received (for 24xx) */
|
|
#define ABTS_RESP_24XX 0x55 /* ABTS responce (for 24xx) */
|
|
|
|
/*
|
|
* ISP queue - ABTS received IOCB entry structure definition for 24xx.
|
|
* The ABTS BLS received from the wire is sent to the
|
|
* target driver by the ISP 24xx.
|
|
* The IOCB is placed on the response queue.
|
|
*/
|
|
struct abts_recv_from_24xx {
|
|
uint8_t entry_type; /* Entry type. */
|
|
uint8_t entry_count; /* Entry count. */
|
|
uint8_t sys_define; /* System defined. */
|
|
uint8_t entry_status; /* Entry Status. */
|
|
uint8_t reserved_1[6];
|
|
uint16_t nport_handle;
|
|
uint8_t reserved_2[2];
|
|
uint8_t vp_index;
|
|
uint8_t reserved_3:4;
|
|
uint8_t sof_type:4;
|
|
uint32_t exchange_address;
|
|
struct fcp_hdr_le fcp_hdr_le;
|
|
uint8_t reserved_4[16];
|
|
uint32_t exchange_addr_to_abort;
|
|
} __packed;
|
|
|
|
#define ABTS_PARAM_ABORT_SEQ BIT_0
|
|
|
|
struct ba_acc_le {
|
|
uint16_t reserved;
|
|
uint8_t seq_id_last;
|
|
uint8_t seq_id_valid;
|
|
#define SEQ_ID_VALID 0x80
|
|
#define SEQ_ID_INVALID 0x00
|
|
uint16_t rx_id;
|
|
uint16_t ox_id;
|
|
uint16_t high_seq_cnt;
|
|
uint16_t low_seq_cnt;
|
|
} __packed;
|
|
|
|
struct ba_rjt_le {
|
|
uint8_t vendor_uniq;
|
|
uint8_t reason_expl;
|
|
uint8_t reason_code;
|
|
#define BA_RJT_REASON_CODE_INVALID_COMMAND 0x1
|
|
#define BA_RJT_REASON_CODE_UNABLE_TO_PERFORM 0x9
|
|
uint8_t reserved;
|
|
} __packed;
|
|
|
|
/*
|
|
* ISP queue - ABTS Response IOCB entry structure definition for 24xx.
|
|
* The ABTS response to the ABTS received is sent by the
|
|
* target driver to the ISP 24xx.
|
|
* The IOCB is placed on the request queue.
|
|
*/
|
|
struct abts_resp_to_24xx {
|
|
uint8_t entry_type; /* Entry type. */
|
|
uint8_t entry_count; /* Entry count. */
|
|
uint8_t sys_define; /* System defined. */
|
|
uint8_t entry_status; /* Entry Status. */
|
|
uint32_t handle;
|
|
uint16_t reserved_1;
|
|
uint16_t nport_handle;
|
|
uint16_t control_flags;
|
|
#define ABTS_CONTR_FLG_TERM_EXCHG BIT_0
|
|
uint8_t vp_index;
|
|
uint8_t reserved_3:4;
|
|
uint8_t sof_type:4;
|
|
uint32_t exchange_address;
|
|
struct fcp_hdr_le fcp_hdr_le;
|
|
union {
|
|
struct ba_acc_le ba_acct;
|
|
struct ba_rjt_le ba_rjt;
|
|
} __packed payload;
|
|
uint32_t reserved_4;
|
|
uint32_t exchange_addr_to_abort;
|
|
} __packed;
|
|
|
|
/*
|
|
* ISP queue - ABTS Response IOCB from ISP24xx Firmware entry structure.
|
|
* The ABTS response with completion status to the ABTS response
|
|
* (sent by the target driver to the ISP 24xx) is sent by the
|
|
* ISP24xx firmware to the target driver.
|
|
* The IOCB is placed on the response queue.
|
|
*/
|
|
struct abts_resp_from_24xx_fw {
|
|
uint8_t entry_type; /* Entry type. */
|
|
uint8_t entry_count; /* Entry count. */
|
|
uint8_t sys_define; /* System defined. */
|
|
uint8_t entry_status; /* Entry Status. */
|
|
uint32_t handle;
|
|
uint16_t compl_status;
|
|
#define ABTS_RESP_COMPL_SUCCESS 0
|
|
#define ABTS_RESP_COMPL_SUBCODE_ERROR 0x31
|
|
uint16_t nport_handle;
|
|
uint16_t reserved_1;
|
|
uint8_t reserved_2;
|
|
uint8_t reserved_3:4;
|
|
uint8_t sof_type:4;
|
|
uint32_t exchange_address;
|
|
struct fcp_hdr_le fcp_hdr_le;
|
|
uint8_t reserved_4[8];
|
|
uint32_t error_subcode1;
|
|
#define ABTS_RESP_SUBCODE_ERR_ABORTED_EXCH_NOT_TERM 0x1E
|
|
uint32_t error_subcode2;
|
|
uint32_t exchange_addr_to_abort;
|
|
} __packed;
|
|
|
|
/********************************************************************\
|
|
* Type Definitions used by initiator & target halves
|
|
\********************************************************************/
|
|
|
|
struct qla_tgt_mgmt_cmd;
|
|
struct fc_port;
|
|
struct qla_tgt_cmd;
|
|
|
|
/*
|
|
* This structure provides a template of function calls that the
|
|
* target driver (from within qla_target.c) can issue to the
|
|
* target module (tcm_qla2xxx).
|
|
*/
|
|
struct qla_tgt_func_tmpl {
|
|
|
|
int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *,
|
|
unsigned char *, uint32_t, int, int, int);
|
|
void (*handle_data)(struct qla_tgt_cmd *);
|
|
int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, u64, uint16_t,
|
|
uint32_t);
|
|
void (*free_cmd)(struct qla_tgt_cmd *);
|
|
void (*free_mcmd)(struct qla_tgt_mgmt_cmd *);
|
|
void (*free_session)(struct fc_port *);
|
|
|
|
int (*check_initiator_node_acl)(struct scsi_qla_host *, unsigned char *,
|
|
struct fc_port *);
|
|
void (*update_sess)(struct fc_port *, port_id_t, uint16_t, bool);
|
|
struct fc_port *(*find_sess_by_loop_id)(struct scsi_qla_host *,
|
|
const uint16_t);
|
|
struct fc_port *(*find_sess_by_s_id)(struct scsi_qla_host *,
|
|
const uint8_t *);
|
|
void (*clear_nacl_from_fcport_map)(struct fc_port *);
|
|
void (*put_sess)(struct fc_port *);
|
|
void (*shutdown_sess)(struct fc_port *);
|
|
int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts);
|
|
int (*chk_dif_tags)(uint32_t tag);
|
|
void (*add_target)(struct scsi_qla_host *);
|
|
void (*remove_target)(struct scsi_qla_host *);
|
|
};
|
|
|
|
int qla2x00_wait_for_hba_online(struct scsi_qla_host *);
|
|
|
|
#include <target/target_core_base.h>
|
|
|
|
#define QLA_TGT_TIMEOUT 10 /* in seconds */
|
|
|
|
#define QLA_TGT_MAX_HW_PENDING_TIME 60 /* in seconds */
|
|
|
|
/* Immediate notify status constants */
|
|
#define IMM_NTFY_LIP_RESET 0x000E
|
|
#define IMM_NTFY_LIP_LINK_REINIT 0x000F
|
|
#define IMM_NTFY_IOCB_OVERFLOW 0x0016
|
|
#define IMM_NTFY_ABORT_TASK 0x0020
|
|
#define IMM_NTFY_PORT_LOGOUT 0x0029
|
|
#define IMM_NTFY_PORT_CONFIG 0x002A
|
|
#define IMM_NTFY_GLBL_TPRLO 0x002D
|
|
#define IMM_NTFY_GLBL_LOGO 0x002E
|
|
#define IMM_NTFY_RESOURCE 0x0034
|
|
#define IMM_NTFY_MSG_RX 0x0036
|
|
#define IMM_NTFY_SRR 0x0045
|
|
#define IMM_NTFY_ELS 0x0046
|
|
|
|
/* Immediate notify task flags */
|
|
#define IMM_NTFY_TASK_MGMT_SHIFT 8
|
|
|
|
#define QLA_TGT_CLEAR_ACA 0x40
|
|
#define QLA_TGT_TARGET_RESET 0x20
|
|
#define QLA_TGT_LUN_RESET 0x10
|
|
#define QLA_TGT_CLEAR_TS 0x04
|
|
#define QLA_TGT_ABORT_TS 0x02
|
|
#define QLA_TGT_ABORT_ALL_SESS 0xFFFF
|
|
#define QLA_TGT_ABORT_ALL 0xFFFE
|
|
#define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD
|
|
#define QLA_TGT_NEXUS_LOSS 0xFFFC
|
|
#define QLA_TGT_ABTS 0xFFFB
|
|
#define QLA_TGT_2G_ABORT_TASK 0xFFFA
|
|
|
|
/* Notify Acknowledge flags */
|
|
#define NOTIFY_ACK_RES_COUNT BIT_8
|
|
#define NOTIFY_ACK_CLEAR_LIP_RESET BIT_5
|
|
#define NOTIFY_ACK_TM_RESP_CODE_VALID BIT_4
|
|
|
|
/* Command's states */
|
|
#define QLA_TGT_STATE_NEW 0 /* New command + target processing */
|
|
#define QLA_TGT_STATE_NEED_DATA 1 /* target needs data to continue */
|
|
#define QLA_TGT_STATE_DATA_IN 2 /* Data arrived + target processing */
|
|
#define QLA_TGT_STATE_PROCESSED 3 /* target done processing */
|
|
|
|
/* ATIO task_codes field */
|
|
#define ATIO_SIMPLE_QUEUE 0
|
|
#define ATIO_HEAD_OF_QUEUE 1
|
|
#define ATIO_ORDERED_QUEUE 2
|
|
#define ATIO_ACA_QUEUE 4
|
|
#define ATIO_UNTAGGED 5
|
|
|
|
/* TM failed response codes, see FCP (9.4.11 FCP_RSP_INFO) */
|
|
#define FC_TM_SUCCESS 0
|
|
#define FC_TM_BAD_FCP_DATA 1
|
|
#define FC_TM_BAD_CMD 2
|
|
#define FC_TM_FCP_DATA_MISMATCH 3
|
|
#define FC_TM_REJECT 4
|
|
#define FC_TM_FAILED 5
|
|
|
|
#if (BITS_PER_LONG > 32) || defined(CONFIG_HIGHMEM64G)
|
|
#define pci_dma_lo32(a) (a & 0xffffffff)
|
|
#define pci_dma_hi32(a) ((((a) >> 16)>>16) & 0xffffffff)
|
|
#else
|
|
#define pci_dma_lo32(a) (a & 0xffffffff)
|
|
#define pci_dma_hi32(a) 0
|
|
#endif
|
|
|
|
#define QLA_TGT_SENSE_VALID(sense) ((sense != NULL) && \
|
|
(((const uint8_t *)(sense))[0] & 0x70) == 0x70)
|
|
|
|
struct qla_port_24xx_data {
|
|
uint8_t port_name[WWN_SIZE];
|
|
uint16_t loop_id;
|
|
uint16_t reserved;
|
|
};
|
|
|
|
struct qla_qpair_hint {
|
|
struct list_head hint_elem;
|
|
struct qla_qpair *qpair;
|
|
u16 cpuid;
|
|
uint8_t cmd_cnt;
|
|
};
|
|
|
|
struct qla_tgt {
|
|
struct scsi_qla_host *vha;
|
|
struct qla_hw_data *ha;
|
|
struct btree_head64 lun_qpair_map;
|
|
struct qla_qpair_hint *qphints;
|
|
/*
|
|
* To sync between IRQ handlers and qlt_target_release(). Needed,
|
|
* because req_pkt() can drop/reaquire HW lock inside. Protected by
|
|
* HW lock.
|
|
*/
|
|
int atio_irq_cmd_count;
|
|
|
|
int sg_tablesize;
|
|
|
|
/* Target's flags, serialized by pha->hardware_lock */
|
|
unsigned int link_reinit_iocb_pending:1;
|
|
|
|
/*
|
|
* Protected by tgt_mutex AND hardware_lock for writing and tgt_mutex
|
|
* OR hardware_lock for reading.
|
|
*/
|
|
int tgt_stop; /* the target mode driver is being stopped */
|
|
int tgt_stopped; /* the target mode driver has been stopped */
|
|
|
|
/* Count of sessions refering qla_tgt. Protected by hardware_lock. */
|
|
int sess_count;
|
|
|
|
/* Protected by hardware_lock */
|
|
struct list_head del_sess_list;
|
|
|
|
spinlock_t sess_work_lock;
|
|
struct list_head sess_works_list;
|
|
struct work_struct sess_work;
|
|
|
|
struct imm_ntfy_from_isp link_reinit_iocb;
|
|
wait_queue_head_t waitQ;
|
|
int notify_ack_expected;
|
|
int abts_resp_expected;
|
|
int modify_lun_expected;
|
|
atomic_t tgt_global_resets_count;
|
|
struct list_head tgt_list_entry;
|
|
};
|
|
|
|
struct qla_tgt_sess_op {
|
|
struct scsi_qla_host *vha;
|
|
uint32_t chip_reset;
|
|
struct atio_from_isp atio;
|
|
struct work_struct work;
|
|
struct list_head cmd_list;
|
|
bool aborted;
|
|
struct rsp_que *rsp;
|
|
};
|
|
|
|
enum trace_flags {
|
|
TRC_NEW_CMD = BIT_0,
|
|
TRC_DO_WORK = BIT_1,
|
|
TRC_DO_WORK_ERR = BIT_2,
|
|
TRC_XFR_RDY = BIT_3,
|
|
TRC_XMIT_DATA = BIT_4,
|
|
TRC_XMIT_STATUS = BIT_5,
|
|
TRC_SRR_RSP = BIT_6,
|
|
TRC_SRR_XRDY = BIT_7,
|
|
TRC_SRR_TERM = BIT_8,
|
|
TRC_SRR_CTIO = BIT_9,
|
|
TRC_FLUSH = BIT_10,
|
|
TRC_CTIO_ERR = BIT_11,
|
|
TRC_CTIO_DONE = BIT_12,
|
|
TRC_CTIO_ABORTED = BIT_13,
|
|
TRC_CTIO_STRANGE= BIT_14,
|
|
TRC_CMD_DONE = BIT_15,
|
|
TRC_CMD_CHK_STOP = BIT_16,
|
|
TRC_CMD_FREE = BIT_17,
|
|
TRC_DATA_IN = BIT_18,
|
|
TRC_ABORT = BIT_19,
|
|
TRC_DIF_ERR = BIT_20,
|
|
};
|
|
|
|
struct qla_tgt_cmd {
|
|
/*
|
|
* Do not move cmd_type field. it needs to line up with srb->cmd_type
|
|
*/
|
|
uint8_t cmd_type;
|
|
uint8_t pad[7];
|
|
struct se_cmd se_cmd;
|
|
struct fc_port *sess;
|
|
struct qla_qpair *qpair;
|
|
uint32_t reset_count;
|
|
int state;
|
|
struct work_struct work;
|
|
/* Sense buffer that will be mapped into outgoing status */
|
|
unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
|
|
|
|
spinlock_t cmd_lock;
|
|
/* to save extra sess dereferences */
|
|
unsigned int conf_compl_supported:1;
|
|
unsigned int sg_mapped:1;
|
|
unsigned int free_sg:1;
|
|
unsigned int write_data_transferred:1;
|
|
unsigned int q_full:1;
|
|
unsigned int term_exchg:1;
|
|
unsigned int cmd_sent_to_fw:1;
|
|
unsigned int cmd_in_wq:1;
|
|
unsigned int aborted:1;
|
|
unsigned int data_work:1;
|
|
unsigned int data_work_free:1;
|
|
|
|
struct scatterlist *sg; /* cmd data buffer SG vector */
|
|
int sg_cnt; /* SG segments count */
|
|
int bufflen; /* cmd buffer length */
|
|
int offset;
|
|
u64 unpacked_lun;
|
|
enum dma_data_direction dma_data_direction;
|
|
|
|
uint16_t vp_idx;
|
|
uint16_t loop_id; /* to save extra sess dereferences */
|
|
struct qla_tgt *tgt; /* to save extra sess dereferences */
|
|
struct scsi_qla_host *vha;
|
|
struct list_head cmd_list;
|
|
|
|
struct atio_from_isp atio;
|
|
|
|
uint8_t ctx_dsd_alloced;
|
|
|
|
/* T10-DIF */
|
|
#define DIF_ERR_NONE 0
|
|
#define DIF_ERR_GRD 1
|
|
#define DIF_ERR_REF 2
|
|
#define DIF_ERR_APP 3
|
|
int8_t dif_err_code;
|
|
struct scatterlist *prot_sg;
|
|
uint32_t prot_sg_cnt;
|
|
uint32_t blk_sz, num_blks;
|
|
uint8_t scsi_status, sense_key, asc, ascq;
|
|
|
|
struct crc_context *ctx;
|
|
uint8_t *cdb;
|
|
uint64_t lba;
|
|
uint16_t a_guard, e_guard, a_app_tag, e_app_tag;
|
|
uint32_t a_ref_tag, e_ref_tag;
|
|
|
|
uint64_t jiffies_at_alloc;
|
|
uint64_t jiffies_at_free;
|
|
|
|
enum trace_flags trc_flags;
|
|
};
|
|
|
|
struct qla_tgt_sess_work_param {
|
|
struct list_head sess_works_list_entry;
|
|
|
|
#define QLA_TGT_SESS_WORK_ABORT 1
|
|
#define QLA_TGT_SESS_WORK_TM 2
|
|
int type;
|
|
|
|
union {
|
|
struct abts_recv_from_24xx abts;
|
|
struct imm_ntfy_from_isp tm_iocb;
|
|
struct atio_from_isp tm_iocb2;
|
|
};
|
|
};
|
|
|
|
struct qla_tgt_mgmt_cmd {
|
|
uint16_t tmr_func;
|
|
uint8_t fc_tm_rsp;
|
|
struct fc_port *sess;
|
|
struct qla_qpair *qpair;
|
|
struct scsi_qla_host *vha;
|
|
struct se_cmd se_cmd;
|
|
struct work_struct free_work;
|
|
unsigned int flags;
|
|
uint32_t reset_count;
|
|
#define QLA24XX_MGMT_SEND_NACK 1
|
|
union {
|
|
struct atio_from_isp atio;
|
|
struct imm_ntfy_from_isp imm_ntfy;
|
|
struct abts_recv_from_24xx abts;
|
|
} __packed orig_iocb;
|
|
};
|
|
|
|
struct qla_tgt_prm {
|
|
struct qla_tgt_cmd *cmd;
|
|
struct qla_tgt *tgt;
|
|
void *pkt;
|
|
struct scatterlist *sg; /* cmd data buffer SG vector */
|
|
unsigned char *sense_buffer;
|
|
int seg_cnt;
|
|
int req_cnt;
|
|
uint16_t rq_result;
|
|
int sense_buffer_len;
|
|
int residual;
|
|
int add_status_pkt;
|
|
/* dif */
|
|
struct scatterlist *prot_sg;
|
|
uint16_t prot_seg_cnt;
|
|
uint16_t tot_dsds;
|
|
};
|
|
|
|
/* Check for Switch reserved address */
|
|
#define IS_SW_RESV_ADDR(_s_id) \
|
|
((_s_id.b.domain == 0xff) && (_s_id.b.area == 0xfc))
|
|
|
|
#define QLA_TGT_XMIT_DATA 1
|
|
#define QLA_TGT_XMIT_STATUS 2
|
|
#define QLA_TGT_XMIT_ALL (QLA_TGT_XMIT_STATUS|QLA_TGT_XMIT_DATA)
|
|
|
|
|
|
extern struct qla_tgt_data qla_target;
|
|
|
|
/*
|
|
* Function prototypes for qla_target.c logic used by qla2xxx LLD code.
|
|
*/
|
|
extern int qlt_add_target(struct qla_hw_data *, struct scsi_qla_host *);
|
|
extern int qlt_remove_target(struct qla_hw_data *, struct scsi_qla_host *);
|
|
extern int qlt_lport_register(void *, u64, u64, u64,
|
|
int (*callback)(struct scsi_qla_host *, void *, u64, u64));
|
|
extern void qlt_lport_deregister(struct scsi_qla_host *);
|
|
extern void qlt_unreg_sess(struct fc_port *);
|
|
extern void qlt_fc_port_added(struct scsi_qla_host *, fc_port_t *);
|
|
extern void qlt_fc_port_deleted(struct scsi_qla_host *, fc_port_t *, int);
|
|
extern int __init qlt_init(void);
|
|
extern void qlt_exit(void);
|
|
extern void qlt_update_vp_map(struct scsi_qla_host *, int);
|
|
|
|
/*
|
|
* This macro is used during early initializations when host->active_mode
|
|
* is not set. Right now, ha value is ignored.
|
|
*/
|
|
#define QLA_TGT_MODE_ENABLED() (ql2x_ini_mode != QLA2XXX_INI_MODE_ENABLED)
|
|
|
|
extern int ql2x_ini_mode;
|
|
|
|
static inline bool qla_tgt_mode_enabled(struct scsi_qla_host *ha)
|
|
{
|
|
return ha->host->active_mode == MODE_TARGET;
|
|
}
|
|
|
|
static inline bool qla_ini_mode_enabled(struct scsi_qla_host *ha)
|
|
{
|
|
return ha->host->active_mode == MODE_INITIATOR;
|
|
}
|
|
|
|
static inline bool qla_dual_mode_enabled(struct scsi_qla_host *ha)
|
|
{
|
|
return (ha->host->active_mode == MODE_DUAL);
|
|
}
|
|
|
|
static inline uint32_t sid_to_key(const uint8_t *s_id)
|
|
{
|
|
uint32_t key;
|
|
|
|
key = (((unsigned long)s_id[0] << 16) |
|
|
((unsigned long)s_id[1] << 8) |
|
|
(unsigned long)s_id[2]);
|
|
return key;
|
|
}
|
|
|
|
static inline void sid_to_portid(const uint8_t *s_id, port_id_t *p)
|
|
{
|
|
memset(p, 0, sizeof(*p));
|
|
p->b.domain = s_id[0];
|
|
p->b.area = s_id[1];
|
|
p->b.al_pa = s_id[2];
|
|
}
|
|
|
|
/*
|
|
* Exported symbols from qla_target.c LLD logic used by qla2xxx code..
|
|
*/
|
|
extern void qlt_response_pkt_all_vps(struct scsi_qla_host *, struct rsp_que *,
|
|
response_t *);
|
|
extern int qlt_rdy_to_xfer(struct qla_tgt_cmd *);
|
|
extern int qlt_xmit_response(struct qla_tgt_cmd *, int, uint8_t);
|
|
extern int qlt_abort_cmd(struct qla_tgt_cmd *);
|
|
extern void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *);
|
|
extern void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *);
|
|
extern void qlt_free_cmd(struct qla_tgt_cmd *cmd);
|
|
extern void qlt_async_event(uint16_t, struct scsi_qla_host *, uint16_t *);
|
|
extern void qlt_enable_vha(struct scsi_qla_host *);
|
|
extern void qlt_vport_create(struct scsi_qla_host *, struct qla_hw_data *);
|
|
extern void qlt_rff_id(struct scsi_qla_host *, struct ct_sns_req *);
|
|
extern void qlt_init_atio_q_entries(struct scsi_qla_host *);
|
|
extern void qlt_24xx_process_atio_queue(struct scsi_qla_host *, uint8_t);
|
|
extern void qlt_24xx_config_rings(struct scsi_qla_host *);
|
|
extern void qlt_24xx_config_nvram_stage1(struct scsi_qla_host *,
|
|
struct nvram_24xx *);
|
|
extern void qlt_24xx_config_nvram_stage2(struct scsi_qla_host *,
|
|
struct init_cb_24xx *);
|
|
extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
|
|
struct init_cb_81xx *);
|
|
extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
|
|
struct nvram_81xx *);
|
|
extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
|
|
struct sts_entry_24xx *);
|
|
extern void qlt_modify_vp_config(struct scsi_qla_host *,
|
|
struct vp_config_entry_24xx *);
|
|
extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
|
|
extern int qlt_mem_alloc(struct qla_hw_data *);
|
|
extern void qlt_mem_free(struct qla_hw_data *);
|
|
extern int qlt_stop_phase1(struct qla_tgt *);
|
|
extern void qlt_stop_phase2(struct qla_tgt *);
|
|
extern irqreturn_t qla83xx_msix_atio_q(int, void *);
|
|
extern void qlt_83xx_iospace_config(struct qla_hw_data *);
|
|
extern int qlt_free_qfull_cmds(struct qla_qpair *);
|
|
extern void qlt_logo_completion_handler(fc_port_t *, int);
|
|
extern void qlt_do_generation_tick(struct scsi_qla_host *, int *);
|
|
|
|
void qlt_send_resp_ctio(struct qla_qpair *, struct qla_tgt_cmd *, uint8_t,
|
|
uint8_t, uint8_t, uint8_t);
|
|
extern void qlt_abort_cmd_on_host_reset(struct scsi_qla_host *,
|
|
struct qla_tgt_cmd *);
|
|
|
|
#endif /* __QLA_TARGET_H */
|