forked from Minki/linux
cd96d96f20
1. Changes in Initialization to fix kdump failure.
Send SYNC command on loading.
This command clears the pending commands in the adapter
and re-initialize its internal RAID structure.
Without this change, megaraid driver either panics or fails to
initialize the adapter during kdump's second kernel boot
if there are pending commands or interrupts from other devices
sharing the same IRQ.
2. Authors email-id domain name changed from lsil.com to lsi.com.
Also modified the MODULE_AUTHOR to megaraidlinux@lsi.com
Signed-off-by: Sumant Patro <sumant.patro@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
238 lines
8.0 KiB
C
238 lines
8.0 KiB
C
/*
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*
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* Linux MegaRAID device driver
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*
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* Copyright (c) 2003-2004 LSI Logic Corporation.
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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
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* 2 of the License, or (at your option) any later version.
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*
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* FILE : megaraid_mbox.h
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*/
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#ifndef _MEGARAID_H_
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#define _MEGARAID_H_
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#include "mega_common.h"
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#include "mbox_defs.h"
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#include "megaraid_ioctl.h"
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#define MEGARAID_VERSION "2.20.5.1"
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#define MEGARAID_EXT_VERSION "(Release Date: Thu Nov 16 15:32:35 EST 2006)"
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/*
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* Define some PCI values here until they are put in the kernel
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*/
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#define PCI_DEVICE_ID_PERC4_DI_DISCOVERY 0x000E
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#define PCI_SUBSYS_ID_PERC4_DI_DISCOVERY 0x0123
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#define PCI_DEVICE_ID_PERC4_SC 0x1960
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#define PCI_SUBSYS_ID_PERC4_SC 0x0520
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#define PCI_DEVICE_ID_PERC4_DC 0x1960
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#define PCI_SUBSYS_ID_PERC4_DC 0x0518
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#define PCI_DEVICE_ID_VERDE 0x0407
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#define PCI_DEVICE_ID_PERC4_DI_EVERGLADES 0x000F
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#define PCI_SUBSYS_ID_PERC4_DI_EVERGLADES 0x014A
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#define PCI_DEVICE_ID_PERC4E_SI_BIGBEND 0x0013
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#define PCI_SUBSYS_ID_PERC4E_SI_BIGBEND 0x016c
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#define PCI_DEVICE_ID_PERC4E_DI_KOBUK 0x0013
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#define PCI_SUBSYS_ID_PERC4E_DI_KOBUK 0x016d
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#define PCI_DEVICE_ID_PERC4E_DI_CORVETTE 0x0013
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#define PCI_SUBSYS_ID_PERC4E_DI_CORVETTE 0x016e
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#define PCI_DEVICE_ID_PERC4E_DI_EXPEDITION 0x0013
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#define PCI_SUBSYS_ID_PERC4E_DI_EXPEDITION 0x016f
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#define PCI_DEVICE_ID_PERC4E_DI_GUADALUPE 0x0013
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#define PCI_SUBSYS_ID_PERC4E_DI_GUADALUPE 0x0170
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#define PCI_DEVICE_ID_DOBSON 0x0408
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#define PCI_DEVICE_ID_MEGARAID_SCSI_320_0 0x1960
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#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_0 0xA520
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#define PCI_DEVICE_ID_MEGARAID_SCSI_320_1 0x1960
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#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_1 0x0520
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#define PCI_DEVICE_ID_MEGARAID_SCSI_320_2 0x1960
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#define PCI_SUBSYS_ID_MEGARAID_SCSI_320_2 0x0518
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#define PCI_DEVICE_ID_MEGARAID_I4_133_RAID 0x1960
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#define PCI_SUBSYS_ID_MEGARAID_I4_133_RAID 0x0522
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#define PCI_DEVICE_ID_MEGARAID_SATA_150_4 0x1960
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#define PCI_SUBSYS_ID_MEGARAID_SATA_150_4 0x4523
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#define PCI_DEVICE_ID_MEGARAID_SATA_150_6 0x1960
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#define PCI_SUBSYS_ID_MEGARAID_SATA_150_6 0x0523
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#define PCI_DEVICE_ID_LINDSAY 0x0409
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#define PCI_DEVICE_ID_INTEL_RAID_SRCS16 0x1960
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#define PCI_SUBSYS_ID_INTEL_RAID_SRCS16 0x0523
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#define PCI_DEVICE_ID_INTEL_RAID_SRCU41L_LAKE_SHETEK 0x1960
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#define PCI_SUBSYS_ID_INTEL_RAID_SRCU41L_LAKE_SHETEK 0x0520
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#define PCI_SUBSYS_ID_PERC3_QC 0x0471
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#define PCI_SUBSYS_ID_PERC3_DC 0x0493
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#define PCI_SUBSYS_ID_PERC3_SC 0x0475
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#define MBOX_MAX_SCSI_CMDS 128 // number of cmds reserved for kernel
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#define MBOX_MAX_USER_CMDS 32 // number of cmds for applications
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#define MBOX_DEF_CMD_PER_LUN 64 // default commands per lun
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#define MBOX_DEFAULT_SG_SIZE 26 // default sg size supported by all fw
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#define MBOX_MAX_SG_SIZE 32 // maximum scatter-gather list size
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#define MBOX_MAX_SECTORS 128 // maximum sectors per IO
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#define MBOX_TIMEOUT 30 // timeout value for internal cmds
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#define MBOX_BUSY_WAIT 10 // max usec to wait for busy mailbox
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#define MBOX_RESET_WAIT 180 // wait these many seconds in reset
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#define MBOX_RESET_EXT_WAIT 120 // extended wait reset
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#define MBOX_SYNC_WAIT_CNT 0xFFFF // wait loop index for synchronous mode
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#define MBOX_SYNC_DELAY_200 200 // 200 micro-seconds
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/*
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* maximum transfer that can happen through the firmware commands issued
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* internnaly from the driver.
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*/
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#define MBOX_IBUF_SIZE 4096
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/**
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* mbox_ccb_t - command control block specific to mailbox based controllers
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* @raw_mbox : raw mailbox pointer
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* @mbox : mailbox
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* @mbox64 : extended mailbox
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* @mbox_dma_h : maibox dma address
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* @sgl64 : 64-bit scatter-gather list
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* @sgl32 : 32-bit scatter-gather list
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* @sgl_dma_h : dma handle for the scatter-gather list
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* @pthru : passthru structure
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* @pthru_dma_h : dma handle for the passthru structure
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* @epthru : extended passthru structure
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* @epthru_dma_h : dma handle for extended passthru structure
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* @buf_dma_h : dma handle for buffers w/o sg list
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*
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* command control block specific to the mailbox based controllers
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*/
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typedef struct {
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uint8_t *raw_mbox;
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mbox_t *mbox;
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mbox64_t *mbox64;
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dma_addr_t mbox_dma_h;
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mbox_sgl64 *sgl64;
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mbox_sgl32 *sgl32;
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dma_addr_t sgl_dma_h;
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mraid_passthru_t *pthru;
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dma_addr_t pthru_dma_h;
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mraid_epassthru_t *epthru;
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dma_addr_t epthru_dma_h;
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dma_addr_t buf_dma_h;
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} mbox_ccb_t;
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/**
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* mraid_device_t - adapter soft state structure for mailbox controllers
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* @param una_mbox64 : 64-bit mbox - unaligned
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* @param una_mbox64_dma : mbox dma addr - unaligned
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* @param mbox : 32-bit mbox - aligned
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* @param mbox64 : 64-bit mbox - aligned
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* @param mbox_dma : mbox dma addr - aligned
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* @param mailbox_lock : exclusion lock for the mailbox
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* @param baseport : base port of hba memory
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* @param baseaddr : mapped addr of hba memory
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* @param mbox_pool : pool of mailboxes
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* @param mbox_pool_handle : handle for the mailbox pool memory
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* @param epthru_pool : a pool for extended passthru commands
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* @param epthru_pool_handle : handle to the pool above
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* @param sg_pool : pool of scatter-gather lists for this driver
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* @param sg_pool_handle : handle to the pool above
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* @param ccb_list : list of our command control blocks
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* @param uccb_list : list of cmd control blocks for mgmt module
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* @param umbox64 : array of mailbox for user commands (cmm)
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* @param pdrv_state : array for state of each physical drive.
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* @param last_disp : flag used to show device scanning
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* @param hw_error : set if FW not responding
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* @param fast_load : If set, skip physical device scanning
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* @channel_class : channel class, RAID or SCSI
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* @sysfs_sem : semaphore to serialize access to sysfs res.
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* @sysfs_uioc : management packet to issue FW calls from sysfs
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* @sysfs_mbox64 : mailbox packet to issue FW calls from sysfs
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* @sysfs_buffer : data buffer for FW commands issued from sysfs
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* @sysfs_buffer_dma : DMA buffer for FW commands issued from sysfs
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* @sysfs_wait_q : wait queue for sysfs operations
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* @random_del_supported : set if the random deletion is supported
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* @curr_ldmap : current LDID map
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*
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* Initialization structure for mailbox controllers: memory based and IO based
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* All the fields in this structure are LLD specific and may be discovered at
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* init() or start() time.
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*
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* NOTE: The fields of this structures are placed to minimize cache misses
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*/
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#define MAX_LD_EXTENDED64 64
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typedef struct {
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mbox64_t *una_mbox64;
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dma_addr_t una_mbox64_dma;
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mbox_t *mbox;
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mbox64_t *mbox64;
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dma_addr_t mbox_dma;
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spinlock_t mailbox_lock;
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unsigned long baseport;
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void __iomem * baseaddr;
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struct mraid_pci_blk mbox_pool[MBOX_MAX_SCSI_CMDS];
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struct dma_pool *mbox_pool_handle;
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struct mraid_pci_blk epthru_pool[MBOX_MAX_SCSI_CMDS];
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struct dma_pool *epthru_pool_handle;
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struct mraid_pci_blk sg_pool[MBOX_MAX_SCSI_CMDS];
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struct dma_pool *sg_pool_handle;
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mbox_ccb_t ccb_list[MBOX_MAX_SCSI_CMDS];
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mbox_ccb_t uccb_list[MBOX_MAX_USER_CMDS];
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mbox64_t umbox64[MBOX_MAX_USER_CMDS];
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uint8_t pdrv_state[MBOX_MAX_PHYSICAL_DRIVES];
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uint32_t last_disp;
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int hw_error;
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int fast_load;
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uint8_t channel_class;
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struct semaphore sysfs_sem;
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uioc_t *sysfs_uioc;
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mbox64_t *sysfs_mbox64;
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caddr_t sysfs_buffer;
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dma_addr_t sysfs_buffer_dma;
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wait_queue_head_t sysfs_wait_q;
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int random_del_supported;
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uint16_t curr_ldmap[MAX_LD_EXTENDED64];
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} mraid_device_t;
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// route to raid device from adapter
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#define ADAP2RAIDDEV(adp) ((mraid_device_t *)((adp)->raid_device))
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#define MAILBOX_LOCK(rdev) (&(rdev)->mailbox_lock)
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// Find out if this channel is a RAID or SCSI
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#define IS_RAID_CH(rdev, ch) (((rdev)->channel_class >> (ch)) & 0x01)
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#define RDINDOOR(rdev) readl((rdev)->baseaddr + 0x20)
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#define RDOUTDOOR(rdev) readl((rdev)->baseaddr + 0x2C)
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#define WRINDOOR(rdev, value) writel(value, (rdev)->baseaddr + 0x20)
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#define WROUTDOOR(rdev, value) writel(value, (rdev)->baseaddr + 0x2C)
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#endif // _MEGARAID_H_
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// vim: set ts=8 sw=8 tw=78:
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