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775a42ecf8
This is a powerpc specific driver. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
723 lines
17 KiB
C
723 lines
17 KiB
C
/*
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* ibmvfc.h -- driver for IBM Power Virtual Fibre Channel Adapter
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*
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* Written By: Brian King <brking@linux.vnet.ibm.com>, IBM Corporation
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*
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* Copyright (C) IBM Corporation, 2008
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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; either version 2 of the License, or
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* (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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _IBMVFC_H
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#define _IBMVFC_H
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#include <linux/list.h>
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#include <linux/types.h>
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#include "viosrp.h"
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#define IBMVFC_NAME "ibmvfc"
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#define IBMVFC_DRIVER_VERSION "1.0.4"
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#define IBMVFC_DRIVER_DATE "(November 14, 2008)"
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#define IBMVFC_DEFAULT_TIMEOUT 15
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#define IBMVFC_INIT_TIMEOUT 120
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#define IBMVFC_MAX_REQUESTS_DEFAULT 100
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#define IBMVFC_DEBUG 0
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#define IBMVFC_MAX_TARGETS 1024
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#define IBMVFC_MAX_LUN 0xffffffff
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#define IBMVFC_MAX_SECTORS 0xffffu
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#define IBMVFC_MAX_DISC_THREADS 4
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#define IBMVFC_TGT_MEMPOOL_SZ 64
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#define IBMVFC_MAX_CMDS_PER_LUN 64
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#define IBMVFC_MAX_HOST_INIT_RETRIES 6
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#define IBMVFC_MAX_TGT_INIT_RETRIES 3
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#define IBMVFC_DEV_LOSS_TMO (5 * 60)
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#define IBMVFC_DEFAULT_LOG_LEVEL 2
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#define IBMVFC_MAX_CDB_LEN 16
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/*
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* Ensure we have resources for ERP and initialization:
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* 1 for ERP
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* 1 for initialization
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* 1 for each discovery thread
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*/
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#define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + disc_threads)
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#define IBMVFC_MAD_SUCCESS 0x00
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#define IBMVFC_MAD_NOT_SUPPORTED 0xF1
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#define IBMVFC_MAD_FAILED 0xF7
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#define IBMVFC_MAD_DRIVER_FAILED 0xEE
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#define IBMVFC_MAD_CRQ_ERROR 0xEF
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enum ibmvfc_crq_valid {
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IBMVFC_CRQ_CMD_RSP = 0x80,
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IBMVFC_CRQ_INIT_RSP = 0xC0,
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IBMVFC_CRQ_XPORT_EVENT = 0xFF,
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};
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enum ibmvfc_crq_format {
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IBMVFC_CRQ_INIT = 0x01,
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IBMVFC_CRQ_INIT_COMPLETE = 0x02,
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IBMVFC_PARTITION_MIGRATED = 0x06,
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};
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enum ibmvfc_cmd_status_flags {
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IBMVFC_FABRIC_MAPPED = 0x0001,
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IBMVFC_VIOS_FAILURE = 0x0002,
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IBMVFC_FC_FAILURE = 0x0004,
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IBMVFC_FC_SCSI_ERROR = 0x0008,
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IBMVFC_HW_EVENT_LOGGED = 0x0010,
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IBMVFC_VIOS_LOGGED = 0x0020,
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};
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enum ibmvfc_fabric_mapped_errors {
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IBMVFC_UNABLE_TO_ESTABLISH = 0x0001,
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IBMVFC_XPORT_FAULT = 0x0002,
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IBMVFC_CMD_TIMEOUT = 0x0003,
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IBMVFC_ENETDOWN = 0x0004,
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IBMVFC_HW_FAILURE = 0x0005,
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IBMVFC_LINK_DOWN_ERR = 0x0006,
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IBMVFC_LINK_DEAD_ERR = 0x0007,
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IBMVFC_UNABLE_TO_REGISTER = 0x0008,
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IBMVFC_XPORT_BUSY = 0x000A,
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IBMVFC_XPORT_DEAD = 0x000B,
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IBMVFC_CONFIG_ERROR = 0x000C,
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IBMVFC_NAME_SERVER_FAIL = 0x000D,
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IBMVFC_LINK_HALTED = 0x000E,
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IBMVFC_XPORT_GENERAL = 0x8000,
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};
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enum ibmvfc_vios_errors {
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IBMVFC_CRQ_FAILURE = 0x0001,
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IBMVFC_SW_FAILURE = 0x0002,
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IBMVFC_INVALID_PARAMETER = 0x0003,
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IBMVFC_MISSING_PARAMETER = 0x0004,
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IBMVFC_HOST_IO_BUS = 0x0005,
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IBMVFC_TRANS_CANCELLED = 0x0006,
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IBMVFC_TRANS_CANCELLED_IMPLICIT = 0x0007,
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IBMVFC_INSUFFICIENT_RESOURCE = 0x0008,
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IBMVFC_PLOGI_REQUIRED = 0x0010,
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IBMVFC_COMMAND_FAILED = 0x8000,
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};
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enum ibmvfc_mad_types {
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IBMVFC_NPIV_LOGIN = 0x0001,
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IBMVFC_DISC_TARGETS = 0x0002,
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IBMVFC_PORT_LOGIN = 0x0004,
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IBMVFC_PROCESS_LOGIN = 0x0008,
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IBMVFC_QUERY_TARGET = 0x0010,
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IBMVFC_IMPLICIT_LOGOUT = 0x0040,
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IBMVFC_PASSTHRU = 0x0200,
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IBMVFC_TMF_MAD = 0x0100,
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};
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struct ibmvfc_mad_common {
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u32 version;
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u32 reserved;
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u32 opcode;
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u16 status;
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u16 length;
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u64 tag;
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_npiv_login_mad {
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struct ibmvfc_mad_common common;
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struct srp_direct_buf buffer;
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}__attribute__((packed, aligned (8)));
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#define IBMVFC_MAX_NAME 256
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struct ibmvfc_npiv_login {
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u32 ostype;
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#define IBMVFC_OS_LINUX 0x02
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u32 pad;
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u64 max_dma_len;
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u32 max_payload;
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u32 max_response;
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u32 partition_num;
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u32 vfc_frame_version;
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u16 fcp_version;
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u16 flags;
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#define IBMVFC_CLIENT_MIGRATED 0x01
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#define IBMVFC_FLUSH_ON_HALT 0x02
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u32 max_cmds;
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u64 capabilities;
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#define IBMVFC_CAN_MIGRATE 0x01
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u64 node_name;
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struct srp_direct_buf async;
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u8 partition_name[IBMVFC_MAX_NAME];
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u8 device_name[IBMVFC_MAX_NAME];
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u8 drc_name[IBMVFC_MAX_NAME];
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u64 reserved2[2];
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_common_svc_parms {
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u16 fcph_version;
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u16 b2b_credit;
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u16 features;
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u16 bb_rcv_sz; /* upper nibble is BB_SC_N */
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u32 ratov;
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u32 edtov;
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}__attribute__((packed, aligned (4)));
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struct ibmvfc_service_parms {
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struct ibmvfc_common_svc_parms common;
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u8 port_name[8];
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u8 node_name[8];
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u32 class1_parms[4];
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u32 class2_parms[4];
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u32 class3_parms[4];
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u32 obsolete[4];
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u32 vendor_version[4];
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u32 services_avail[2];
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u32 ext_len;
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u32 reserved[30];
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u32 clk_sync_qos[2];
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}__attribute__((packed, aligned (4)));
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struct ibmvfc_npiv_login_resp {
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u32 version;
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u16 status;
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u16 error;
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u32 flags;
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#define IBMVFC_NATIVE_FC 0x01
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#define IBMVFC_CAN_FLUSH_ON_HALT 0x08
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u32 reserved;
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u64 capabilites;
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u32 max_cmds;
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u32 scsi_id_sz;
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u64 max_dma_len;
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u64 scsi_id;
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u64 port_name;
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u64 node_name;
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u64 link_speed;
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u8 partition_name[IBMVFC_MAX_NAME];
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u8 device_name[IBMVFC_MAX_NAME];
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u8 port_loc_code[IBMVFC_MAX_NAME];
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u8 drc_name[IBMVFC_MAX_NAME];
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struct ibmvfc_service_parms service_parms;
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u64 reserved2;
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}__attribute__((packed, aligned (8)));
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union ibmvfc_npiv_login_data {
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struct ibmvfc_npiv_login login;
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struct ibmvfc_npiv_login_resp resp;
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_discover_targets_buf {
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u32 scsi_id[1];
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#define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff
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};
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struct ibmvfc_discover_targets {
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struct ibmvfc_mad_common common;
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struct srp_direct_buf buffer;
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u32 flags;
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u16 status;
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u16 error;
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u32 bufflen;
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u32 num_avail;
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u32 num_written;
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u64 reserved[2];
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}__attribute__((packed, aligned (8)));
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enum ibmvfc_fc_reason {
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IBMVFC_INVALID_ELS_CMD_CODE = 0x01,
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IBMVFC_INVALID_VERSION = 0x02,
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IBMVFC_LOGICAL_ERROR = 0x03,
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IBMVFC_INVALID_CT_IU_SIZE = 0x04,
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IBMVFC_LOGICAL_BUSY = 0x05,
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IBMVFC_PROTOCOL_ERROR = 0x07,
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IBMVFC_UNABLE_TO_PERFORM_REQ = 0x09,
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IBMVFC_CMD_NOT_SUPPORTED = 0x0B,
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IBMVFC_SERVER_NOT_AVAIL = 0x0D,
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IBMVFC_CMD_IN_PROGRESS = 0x0E,
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IBMVFC_VENDOR_SPECIFIC = 0xFF,
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};
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enum ibmvfc_fc_type {
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IBMVFC_FABRIC_REJECT = 0x01,
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IBMVFC_PORT_REJECT = 0x02,
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IBMVFC_LS_REJECT = 0x03,
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IBMVFC_FABRIC_BUSY = 0x04,
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IBMVFC_PORT_BUSY = 0x05,
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IBMVFC_BASIC_REJECT = 0x06,
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};
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enum ibmvfc_gs_explain {
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IBMVFC_PORT_NAME_NOT_REG = 0x02,
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};
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struct ibmvfc_port_login {
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struct ibmvfc_mad_common common;
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u64 scsi_id;
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u16 reserved;
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u16 fc_service_class;
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u32 blksz;
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u32 hdr_per_blk;
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u16 status;
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u16 error; /* also fc_reason */
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u16 fc_explain;
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u16 fc_type;
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u32 reserved2;
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struct ibmvfc_service_parms service_parms;
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struct ibmvfc_service_parms service_parms_change;
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u64 reserved3[2];
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_prli_svc_parms {
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u8 type;
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#define IBMVFC_SCSI_FCP_TYPE 0x08
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u8 type_ext;
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u16 flags;
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#define IBMVFC_PRLI_ORIG_PA_VALID 0x8000
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#define IBMVFC_PRLI_RESP_PA_VALID 0x4000
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#define IBMVFC_PRLI_EST_IMG_PAIR 0x2000
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u32 orig_pa;
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u32 resp_pa;
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u32 service_parms;
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#define IBMVFC_PRLI_TASK_RETRY 0x00000200
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#define IBMVFC_PRLI_RETRY 0x00000100
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#define IBMVFC_PRLI_DATA_OVERLAY 0x00000040
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#define IBMVFC_PRLI_INITIATOR_FUNC 0x00000020
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#define IBMVFC_PRLI_TARGET_FUNC 0x00000010
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#define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002
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#define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001
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}__attribute__((packed, aligned (4)));
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struct ibmvfc_process_login {
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struct ibmvfc_mad_common common;
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u64 scsi_id;
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struct ibmvfc_prli_svc_parms parms;
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u8 reserved[48];
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u16 status;
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u16 error; /* also fc_reason */
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u32 reserved2;
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u64 reserved3[2];
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_query_tgt {
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struct ibmvfc_mad_common common;
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u64 wwpn;
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u64 scsi_id;
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u16 status;
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u16 error;
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u16 fc_explain;
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u16 fc_type;
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u64 reserved[2];
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_implicit_logout {
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struct ibmvfc_mad_common common;
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u64 old_scsi_id;
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u64 reserved[2];
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_tmf {
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struct ibmvfc_mad_common common;
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u64 scsi_id;
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struct scsi_lun lun;
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u32 flags;
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#define IBMVFC_TMF_ABORT_TASK 0x02
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#define IBMVFC_TMF_ABORT_TASK_SET 0x04
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#define IBMVFC_TMF_LUN_RESET 0x10
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#define IBMVFC_TMF_TGT_RESET 0x20
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#define IBMVFC_TMF_LUA_VALID 0x40
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u32 cancel_key;
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u32 my_cancel_key;
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u32 pad;
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u64 reserved[2];
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}__attribute__((packed, aligned (8)));
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enum ibmvfc_fcp_rsp_info_codes {
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RSP_NO_FAILURE = 0x00,
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RSP_TMF_REJECTED = 0x04,
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RSP_TMF_FAILED = 0x05,
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RSP_TMF_INVALID_LUN = 0x09,
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};
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struct ibmvfc_fcp_rsp_info {
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u16 reserved;
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u8 rsp_code;
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u8 reserved2[4];
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}__attribute__((packed, aligned (2)));
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enum ibmvfc_fcp_rsp_flags {
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FCP_BIDI_RSP = 0x80,
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FCP_BIDI_READ_RESID_UNDER = 0x40,
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FCP_BIDI_READ_RESID_OVER = 0x20,
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FCP_CONF_REQ = 0x10,
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FCP_RESID_UNDER = 0x08,
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FCP_RESID_OVER = 0x04,
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FCP_SNS_LEN_VALID = 0x02,
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FCP_RSP_LEN_VALID = 0x01,
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};
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union ibmvfc_fcp_rsp_data {
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struct ibmvfc_fcp_rsp_info info;
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u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)];
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_fcp_rsp {
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u64 reserved;
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u16 retry_delay_timer;
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u8 flags;
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u8 scsi_status;
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u32 fcp_resid;
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u32 fcp_sense_len;
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u32 fcp_rsp_len;
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union ibmvfc_fcp_rsp_data data;
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}__attribute__((packed, aligned (8)));
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enum ibmvfc_cmd_flags {
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IBMVFC_SCATTERLIST = 0x0001,
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IBMVFC_NO_MEM_DESC = 0x0002,
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IBMVFC_READ = 0x0004,
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IBMVFC_WRITE = 0x0008,
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IBMVFC_TMF = 0x0080,
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IBMVFC_CLASS_3_ERR = 0x0100,
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};
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enum ibmvfc_fc_task_attr {
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IBMVFC_SIMPLE_TASK = 0x00,
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IBMVFC_HEAD_OF_QUEUE = 0x01,
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IBMVFC_ORDERED_TASK = 0x02,
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IBMVFC_ACA_TASK = 0x04,
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};
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enum ibmvfc_fc_tmf_flags {
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IBMVFC_ABORT_TASK_SET = 0x02,
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IBMVFC_LUN_RESET = 0x10,
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IBMVFC_TARGET_RESET = 0x20,
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};
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struct ibmvfc_fcp_cmd_iu {
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struct scsi_lun lun;
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u8 crn;
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u8 pri_task_attr;
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u8 tmf_flags;
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u8 add_cdb_len;
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#define IBMVFC_RDDATA 0x02
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#define IBMVFC_WRDATA 0x01
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u8 cdb[IBMVFC_MAX_CDB_LEN];
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u32 xfer_len;
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}__attribute__((packed, aligned (4)));
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struct ibmvfc_cmd {
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u64 task_tag;
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u32 frame_type;
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u32 payload_len;
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u32 resp_len;
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u32 adapter_resid;
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u16 status;
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u16 error;
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u16 flags;
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u16 response_flags;
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#define IBMVFC_ADAPTER_RESID_VALID 0x01
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u32 cancel_key;
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u32 exchange_id;
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struct srp_direct_buf ext_func;
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struct srp_direct_buf ioba;
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struct srp_direct_buf resp;
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u64 correlation;
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u64 tgt_scsi_id;
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u64 tag;
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u64 reserved3[2];
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struct ibmvfc_fcp_cmd_iu iu;
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struct ibmvfc_fcp_rsp rsp;
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_passthru_fc_iu {
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u32 payload[7];
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#define IBMVFC_ADISC 0x52000000
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u32 response[7];
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};
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struct ibmvfc_passthru_iu {
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u64 task_tag;
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u32 cmd_len;
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u32 rsp_len;
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u16 status;
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u16 error;
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u32 flags;
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#define IBMVFC_FC_ELS 0x01
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u32 cancel_key;
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u32 reserved;
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struct srp_direct_buf cmd;
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struct srp_direct_buf rsp;
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u64 correlation;
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u64 scsi_id;
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u64 tag;
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u64 reserved2[2];
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}__attribute__((packed, aligned (8)));
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struct ibmvfc_passthru_mad {
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struct ibmvfc_mad_common common;
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struct srp_direct_buf cmd_ioba;
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struct ibmvfc_passthru_iu iu;
|
|
struct ibmvfc_passthru_fc_iu fc_iu;
|
|
}__attribute__((packed, aligned (8)));
|
|
|
|
struct ibmvfc_trace_start_entry {
|
|
u32 xfer_len;
|
|
}__attribute__((packed));
|
|
|
|
struct ibmvfc_trace_end_entry {
|
|
u16 status;
|
|
u16 error;
|
|
u8 fcp_rsp_flags;
|
|
u8 rsp_code;
|
|
u8 scsi_status;
|
|
u8 reserved;
|
|
}__attribute__((packed));
|
|
|
|
struct ibmvfc_trace_entry {
|
|
struct ibmvfc_event *evt;
|
|
u32 time;
|
|
u32 scsi_id;
|
|
u32 lun;
|
|
u8 fmt;
|
|
u8 op_code;
|
|
u8 tmf_flags;
|
|
u8 type;
|
|
#define IBMVFC_TRC_START 0x00
|
|
#define IBMVFC_TRC_END 0xff
|
|
union {
|
|
struct ibmvfc_trace_start_entry start;
|
|
struct ibmvfc_trace_end_entry end;
|
|
} u;
|
|
}__attribute__((packed, aligned (8)));
|
|
|
|
enum ibmvfc_crq_formats {
|
|
IBMVFC_CMD_FORMAT = 0x01,
|
|
IBMVFC_ASYNC_EVENT = 0x02,
|
|
IBMVFC_MAD_FORMAT = 0x04,
|
|
};
|
|
|
|
enum ibmvfc_async_event {
|
|
IBMVFC_AE_ELS_PLOGI = 0x0001,
|
|
IBMVFC_AE_ELS_LOGO = 0x0002,
|
|
IBMVFC_AE_ELS_PRLO = 0x0004,
|
|
IBMVFC_AE_SCN_NPORT = 0x0008,
|
|
IBMVFC_AE_SCN_GROUP = 0x0010,
|
|
IBMVFC_AE_SCN_DOMAIN = 0x0020,
|
|
IBMVFC_AE_SCN_FABRIC = 0x0040,
|
|
IBMVFC_AE_LINK_UP = 0x0080,
|
|
IBMVFC_AE_LINK_DOWN = 0x0100,
|
|
IBMVFC_AE_LINK_DEAD = 0x0200,
|
|
IBMVFC_AE_HALT = 0x0400,
|
|
IBMVFC_AE_RESUME = 0x0800,
|
|
IBMVFC_AE_ADAPTER_FAILED = 0x1000,
|
|
};
|
|
|
|
struct ibmvfc_crq {
|
|
volatile u8 valid;
|
|
volatile u8 format;
|
|
u8 reserved[6];
|
|
volatile u64 ioba;
|
|
}__attribute__((packed, aligned (8)));
|
|
|
|
struct ibmvfc_crq_queue {
|
|
struct ibmvfc_crq *msgs;
|
|
int size, cur;
|
|
dma_addr_t msg_token;
|
|
};
|
|
|
|
struct ibmvfc_async_crq {
|
|
volatile u8 valid;
|
|
u8 pad[3];
|
|
u32 pad2;
|
|
volatile u64 event;
|
|
volatile u64 scsi_id;
|
|
volatile u64 wwpn;
|
|
volatile u64 node_name;
|
|
u64 reserved;
|
|
}__attribute__((packed, aligned (8)));
|
|
|
|
struct ibmvfc_async_crq_queue {
|
|
struct ibmvfc_async_crq *msgs;
|
|
int size, cur;
|
|
dma_addr_t msg_token;
|
|
};
|
|
|
|
union ibmvfc_iu {
|
|
struct ibmvfc_mad_common mad_common;
|
|
struct ibmvfc_npiv_login_mad npiv_login;
|
|
struct ibmvfc_discover_targets discover_targets;
|
|
struct ibmvfc_port_login plogi;
|
|
struct ibmvfc_process_login prli;
|
|
struct ibmvfc_query_tgt query_tgt;
|
|
struct ibmvfc_implicit_logout implicit_logout;
|
|
struct ibmvfc_tmf tmf;
|
|
struct ibmvfc_cmd cmd;
|
|
struct ibmvfc_passthru_mad passthru;
|
|
}__attribute__((packed, aligned (8)));
|
|
|
|
enum ibmvfc_target_action {
|
|
IBMVFC_TGT_ACTION_NONE = 0,
|
|
IBMVFC_TGT_ACTION_INIT,
|
|
IBMVFC_TGT_ACTION_INIT_WAIT,
|
|
IBMVFC_TGT_ACTION_ADD_RPORT,
|
|
IBMVFC_TGT_ACTION_DEL_RPORT,
|
|
};
|
|
|
|
struct ibmvfc_target {
|
|
struct list_head queue;
|
|
struct ibmvfc_host *vhost;
|
|
u64 scsi_id;
|
|
u64 new_scsi_id;
|
|
struct fc_rport *rport;
|
|
int target_id;
|
|
enum ibmvfc_target_action action;
|
|
int need_login;
|
|
int init_retries;
|
|
struct ibmvfc_service_parms service_parms;
|
|
struct ibmvfc_service_parms service_parms_change;
|
|
struct fc_rport_identifiers ids;
|
|
void (*job_step) (struct ibmvfc_target *);
|
|
struct kref kref;
|
|
};
|
|
|
|
/* a unit of work for the hosting partition */
|
|
struct ibmvfc_event {
|
|
struct list_head queue;
|
|
struct ibmvfc_host *vhost;
|
|
struct ibmvfc_target *tgt;
|
|
struct scsi_cmnd *cmnd;
|
|
atomic_t free;
|
|
union ibmvfc_iu *xfer_iu;
|
|
void (*done) (struct ibmvfc_event *);
|
|
struct ibmvfc_crq crq;
|
|
union ibmvfc_iu iu;
|
|
union ibmvfc_iu *sync_iu;
|
|
struct srp_direct_buf *ext_list;
|
|
dma_addr_t ext_list_token;
|
|
struct completion comp;
|
|
struct completion *eh_comp;
|
|
struct timer_list timer;
|
|
};
|
|
|
|
/* a pool of event structs for use */
|
|
struct ibmvfc_event_pool {
|
|
struct ibmvfc_event *events;
|
|
u32 size;
|
|
union ibmvfc_iu *iu_storage;
|
|
dma_addr_t iu_token;
|
|
};
|
|
|
|
enum ibmvfc_host_action {
|
|
IBMVFC_HOST_ACTION_NONE = 0,
|
|
IBMVFC_HOST_ACTION_INIT,
|
|
IBMVFC_HOST_ACTION_INIT_WAIT,
|
|
IBMVFC_HOST_ACTION_QUERY,
|
|
IBMVFC_HOST_ACTION_QUERY_TGTS,
|
|
IBMVFC_HOST_ACTION_TGT_DEL,
|
|
IBMVFC_HOST_ACTION_ALLOC_TGTS,
|
|
IBMVFC_HOST_ACTION_TGT_INIT,
|
|
IBMVFC_HOST_ACTION_TGT_DEL_FAILED,
|
|
IBMVFC_HOST_ACTION_TGT_ADD,
|
|
};
|
|
|
|
enum ibmvfc_host_state {
|
|
IBMVFC_NO_CRQ = 0,
|
|
IBMVFC_INITIALIZING,
|
|
IBMVFC_ACTIVE,
|
|
IBMVFC_HALTED,
|
|
IBMVFC_LINK_DOWN,
|
|
IBMVFC_LINK_DEAD,
|
|
IBMVFC_HOST_OFFLINE,
|
|
};
|
|
|
|
struct ibmvfc_host {
|
|
char name[8];
|
|
struct list_head queue;
|
|
struct Scsi_Host *host;
|
|
enum ibmvfc_host_state state;
|
|
enum ibmvfc_host_action action;
|
|
#define IBMVFC_NUM_TRACE_INDEX_BITS 8
|
|
#define IBMVFC_NUM_TRACE_ENTRIES (1 << IBMVFC_NUM_TRACE_INDEX_BITS)
|
|
#define IBMVFC_TRACE_SIZE (sizeof(struct ibmvfc_trace_entry) * IBMVFC_NUM_TRACE_ENTRIES)
|
|
struct ibmvfc_trace_entry *trace;
|
|
u32 trace_index:IBMVFC_NUM_TRACE_INDEX_BITS;
|
|
int num_targets;
|
|
struct list_head targets;
|
|
struct list_head sent;
|
|
struct list_head free;
|
|
struct device *dev;
|
|
struct ibmvfc_event_pool pool;
|
|
struct dma_pool *sg_pool;
|
|
mempool_t *tgt_pool;
|
|
struct ibmvfc_crq_queue crq;
|
|
struct ibmvfc_async_crq_queue async_crq;
|
|
struct ibmvfc_npiv_login login_info;
|
|
union ibmvfc_npiv_login_data *login_buf;
|
|
dma_addr_t login_buf_dma;
|
|
int disc_buf_sz;
|
|
int log_level;
|
|
struct ibmvfc_discover_targets_buf *disc_buf;
|
|
int task_set;
|
|
int init_retries;
|
|
int discovery_threads;
|
|
int client_migrated;
|
|
int reinit;
|
|
int delay_init;
|
|
int events_to_log;
|
|
#define IBMVFC_AE_LINKUP 0x0001
|
|
#define IBMVFC_AE_LINKDOWN 0x0002
|
|
#define IBMVFC_AE_RSCN 0x0004
|
|
dma_addr_t disc_buf_dma;
|
|
unsigned int partition_number;
|
|
char partition_name[97];
|
|
void (*job_step) (struct ibmvfc_host *);
|
|
struct task_struct *work_thread;
|
|
wait_queue_head_t init_wait_q;
|
|
wait_queue_head_t work_wait_q;
|
|
};
|
|
|
|
#define DBG_CMD(CMD) do { if (ibmvfc_debug) CMD; } while (0)
|
|
|
|
#define tgt_dbg(t, fmt, ...) \
|
|
DBG_CMD(dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__))
|
|
|
|
#define tgt_info(t, fmt, ...) \
|
|
dev_info((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
|
|
|
|
#define tgt_err(t, fmt, ...) \
|
|
dev_err((t)->vhost->dev, "%llX: " fmt, (t)->scsi_id, ##__VA_ARGS__)
|
|
|
|
#define ibmvfc_dbg(vhost, ...) \
|
|
DBG_CMD(dev_info((vhost)->dev, ##__VA_ARGS__))
|
|
|
|
#define ibmvfc_log(vhost, level, ...) \
|
|
do { \
|
|
if ((vhost)->log_level >= level) \
|
|
dev_err((vhost)->dev, ##__VA_ARGS__); \
|
|
} while (0)
|
|
|
|
#define ENTER DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Entering %s\n", __func__))
|
|
#define LEAVE DBG_CMD(printk(KERN_INFO IBMVFC_NAME": Leaving %s\n", __func__))
|
|
|
|
#ifdef CONFIG_SCSI_IBMVFC_TRACE
|
|
#define ibmvfc_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr)
|
|
#define ibmvfc_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr)
|
|
#else
|
|
#define ibmvfc_create_trace_file(kobj, attr) 0
|
|
#define ibmvfc_remove_trace_file(kobj, attr) do { } while (0)
|
|
#endif
|
|
|
|
#endif
|