4739 строки
107 KiB
C
4739 строки
107 KiB
C
/*
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*
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* Linux MegaRAID device driver
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*
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* Copyright (c) 2002 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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* Copyright (c) 2002 Red Hat, Inc. All rights reserved.
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* - fixes
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* - speed-ups (list handling fixes, issued_list, optimizations.)
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* - lots of cleanups.
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*
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* Copyright (c) 2003 Christoph Hellwig <hch@lst.de>
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* - new-style, hotplug-aware pci probing and scsi registration
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*
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* Version : v2.00.4 Mon Nov 14 14:02:43 EST 2005 - Seokmann Ju
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* <Seokmann.Ju@lsil.com>
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*
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* Description: Linux device driver for LSI Logic MegaRAID controller
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*
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* Supported controllers: MegaRAID 418, 428, 438, 466, 762, 467, 471, 490, 493
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* 518, 520, 531, 532
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*
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* This driver is supported by LSI Logic, with assistance from Red Hat, Dell,
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* and others. Please send updates to the mailing list
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* linux-scsi@vger.kernel.org .
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*
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*/
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#include <linux/mm.h>
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#include <linux/fs.h>
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#include <linux/blkdev.h>
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#include <asm/uaccess.h>
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#include <asm/io.h>
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#include <linux/completion.h>
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#include <linux/delay.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/reboot.h>
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#include <linux/module.h>
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#include <linux/list.h>
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/dma-mapping.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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#include <scsi/scsicam.h>
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#include "scsi.h"
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#include <scsi/scsi_host.h>
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#include "megaraid.h"
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#define MEGARAID_MODULE_VERSION "2.00.4"
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MODULE_AUTHOR ("sju@lsil.com");
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MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver");
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MODULE_LICENSE ("GPL");
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MODULE_VERSION(MEGARAID_MODULE_VERSION);
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static DEFINE_MUTEX(megadev_mutex);
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static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN;
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module_param(max_cmd_per_lun, uint, 0);
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MODULE_PARM_DESC(max_cmd_per_lun, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)");
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static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO;
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module_param(max_sectors_per_io, ushort, 0);
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MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)");
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static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT;
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module_param(max_mbox_busy_wait, ushort, 0);
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MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)");
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#define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20)
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#define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C)
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#define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20)
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#define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C)
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/*
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* Global variables
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*/
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static int hba_count;
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static adapter_t *hba_soft_state[MAX_CONTROLLERS];
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static struct proc_dir_entry *mega_proc_dir_entry;
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/* For controller re-ordering */
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static struct mega_hbas mega_hbas[MAX_CONTROLLERS];
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static long
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megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
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/*
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* The File Operations structure for the serial/ioctl interface of the driver
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*/
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static const struct file_operations megadev_fops = {
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.owner = THIS_MODULE,
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.unlocked_ioctl = megadev_unlocked_ioctl,
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.open = megadev_open,
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.llseek = noop_llseek,
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};
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/*
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* Array to structures for storing the information about the controllers. This
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* information is sent to the user level applications, when they do an ioctl
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* for this information.
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*/
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static struct mcontroller mcontroller[MAX_CONTROLLERS];
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/* The current driver version */
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static u32 driver_ver = 0x02000000;
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/* major number used by the device for character interface */
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static int major;
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#define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01)
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/*
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* Debug variable to print some diagnostic messages
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*/
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static int trace_level;
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/**
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* mega_setup_mailbox()
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* @adapter - pointer to our soft state
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*
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* Allocates a 8 byte aligned memory for the handshake mailbox.
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*/
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static int
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mega_setup_mailbox(adapter_t *adapter)
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{
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unsigned long align;
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adapter->una_mbox64 = pci_alloc_consistent(adapter->dev,
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sizeof(mbox64_t), &adapter->una_mbox64_dma);
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if( !adapter->una_mbox64 ) return -1;
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adapter->mbox = &adapter->una_mbox64->mbox;
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adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) &
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(~0UL ^ 0xFUL));
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adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8);
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align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox);
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adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align;
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/*
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* Register the mailbox if the controller is an io-mapped controller
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*/
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if( adapter->flag & BOARD_IOMAP ) {
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outb(adapter->mbox_dma & 0xFF,
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adapter->host->io_port + MBOX_PORT0);
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outb((adapter->mbox_dma >> 8) & 0xFF,
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adapter->host->io_port + MBOX_PORT1);
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outb((adapter->mbox_dma >> 16) & 0xFF,
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adapter->host->io_port + MBOX_PORT2);
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outb((adapter->mbox_dma >> 24) & 0xFF,
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adapter->host->io_port + MBOX_PORT3);
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outb(ENABLE_MBOX_BYTE,
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adapter->host->io_port + ENABLE_MBOX_REGION);
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irq_ack(adapter);
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irq_enable(adapter);
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}
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return 0;
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}
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/*
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* mega_query_adapter()
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* @adapter - pointer to our soft state
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*
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* Issue the adapter inquiry commands to the controller and find out
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* information and parameter about the devices attached
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*/
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static int
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mega_query_adapter(adapter_t *adapter)
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{
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dma_addr_t prod_info_dma_handle;
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mega_inquiry3 *inquiry3;
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u8 raw_mbox[sizeof(struct mbox_out)];
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mbox_t *mbox;
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int retval;
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/* Initialize adapter inquiry mailbox */
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mbox = (mbox_t *)raw_mbox;
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memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
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memset(&mbox->m_out, 0, sizeof(raw_mbox));
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/*
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* Try to issue Inquiry3 command
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* if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and
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* update enquiry3 structure
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*/
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mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
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inquiry3 = (mega_inquiry3 *)adapter->mega_buffer;
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raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */
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raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */
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raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */
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/* Issue a blocking command to the card */
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if ((retval = issue_scb_block(adapter, raw_mbox))) {
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/* the adapter does not support 40ld */
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mraid_ext_inquiry *ext_inq;
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mraid_inquiry *inq;
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dma_addr_t dma_handle;
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ext_inq = pci_alloc_consistent(adapter->dev,
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sizeof(mraid_ext_inquiry), &dma_handle);
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if( ext_inq == NULL ) return -1;
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inq = &ext_inq->raid_inq;
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mbox->m_out.xferaddr = (u32)dma_handle;
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/*issue old 0x04 command to adapter */
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mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ;
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issue_scb_block(adapter, raw_mbox);
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/*
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* update Enquiry3 and ProductInfo structures with
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* mraid_inquiry structure
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*/
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mega_8_to_40ld(inq, inquiry3,
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(mega_product_info *)&adapter->product_info);
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pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry),
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ext_inq, dma_handle);
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} else { /*adapter supports 40ld */
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adapter->flag |= BOARD_40LD;
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/*
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* get product_info, which is static information and will be
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* unchanged
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*/
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prod_info_dma_handle = pci_map_single(adapter->dev, (void *)
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&adapter->product_info,
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sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
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mbox->m_out.xferaddr = prod_info_dma_handle;
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raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */
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raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */
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if ((retval = issue_scb_block(adapter, raw_mbox)))
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printk(KERN_WARNING
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"megaraid: Product_info cmd failed with error: %d\n",
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retval);
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pci_unmap_single(adapter->dev, prod_info_dma_handle,
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sizeof(mega_product_info), PCI_DMA_FROMDEVICE);
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}
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/*
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* kernel scans the channels from 0 to <= max_channel
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*/
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adapter->host->max_channel =
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adapter->product_info.nchannels + NVIRT_CHAN -1;
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adapter->host->max_id = 16; /* max targets per channel */
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adapter->host->max_lun = 7; /* Up to 7 luns for non disk devices */
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adapter->host->cmd_per_lun = max_cmd_per_lun;
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adapter->numldrv = inquiry3->num_ldrv;
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adapter->max_cmds = adapter->product_info.max_commands;
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if(adapter->max_cmds > MAX_COMMANDS)
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adapter->max_cmds = MAX_COMMANDS;
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adapter->host->can_queue = adapter->max_cmds - 1;
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/*
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* Get the maximum number of scatter-gather elements supported by this
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* firmware
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*/
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mega_get_max_sgl(adapter);
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adapter->host->sg_tablesize = adapter->sglen;
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/* use HP firmware and bios version encoding
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Note: fw_version[0|1] and bios_version[0|1] were originally shifted
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right 8 bits making them zero. This 0 value was hardcoded to fix
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sparse warnings. */
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if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) {
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sprintf (adapter->fw_version, "%c%d%d.%d%d",
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adapter->product_info.fw_version[2],
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0,
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adapter->product_info.fw_version[1] & 0x0f,
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0,
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adapter->product_info.fw_version[0] & 0x0f);
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sprintf (adapter->bios_version, "%c%d%d.%d%d",
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adapter->product_info.bios_version[2],
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0,
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adapter->product_info.bios_version[1] & 0x0f,
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0,
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adapter->product_info.bios_version[0] & 0x0f);
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} else {
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memcpy(adapter->fw_version,
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(char *)adapter->product_info.fw_version, 4);
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adapter->fw_version[4] = 0;
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memcpy(adapter->bios_version,
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(char *)adapter->product_info.bios_version, 4);
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adapter->bios_version[4] = 0;
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}
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printk(KERN_NOTICE "megaraid: [%s:%s] detected %d logical drives.\n",
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adapter->fw_version, adapter->bios_version, adapter->numldrv);
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/*
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* Do we support extended (>10 bytes) cdbs
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*/
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adapter->support_ext_cdb = mega_support_ext_cdb(adapter);
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if (adapter->support_ext_cdb)
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printk(KERN_NOTICE "megaraid: supports extended CDBs.\n");
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return 0;
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}
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/**
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* mega_runpendq()
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* @adapter - pointer to our soft state
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*
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* Runs through the list of pending requests.
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*/
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static inline void
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mega_runpendq(adapter_t *adapter)
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{
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if(!list_empty(&adapter->pending_list))
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__mega_runpendq(adapter);
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}
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/*
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* megaraid_queue()
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* @scmd - Issue this scsi command
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* @done - the callback hook into the scsi mid-layer
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*
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* The command queuing entry point for the mid-layer.
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*/
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static int
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megaraid_queue_lck(Scsi_Cmnd *scmd, void (*done)(Scsi_Cmnd *))
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{
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adapter_t *adapter;
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scb_t *scb;
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int busy=0;
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unsigned long flags;
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adapter = (adapter_t *)scmd->device->host->hostdata;
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scmd->scsi_done = done;
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/*
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* Allocate and build a SCB request
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* busy flag will be set if mega_build_cmd() command could not
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* allocate scb. We will return non-zero status in that case.
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* NOTE: scb can be null even though certain commands completed
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* successfully, e.g., MODE_SENSE and TEST_UNIT_READY, we would
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* return 0 in that case.
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*/
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spin_lock_irqsave(&adapter->lock, flags);
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scb = mega_build_cmd(adapter, scmd, &busy);
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if (!scb)
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goto out;
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scb->state |= SCB_PENDQ;
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list_add_tail(&scb->list, &adapter->pending_list);
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/*
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* Check if the HBA is in quiescent state, e.g., during a
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* delete logical drive opertion. If it is, don't run
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* the pending_list.
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*/
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if (atomic_read(&adapter->quiescent) == 0)
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mega_runpendq(adapter);
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busy = 0;
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out:
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spin_unlock_irqrestore(&adapter->lock, flags);
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return busy;
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}
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static DEF_SCSI_QCMD(megaraid_queue)
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/**
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* mega_allocate_scb()
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* @adapter - pointer to our soft state
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* @cmd - scsi command from the mid-layer
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*
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* Allocate a SCB structure. This is the central structure for controller
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* commands.
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*/
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static inline scb_t *
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mega_allocate_scb(adapter_t *adapter, Scsi_Cmnd *cmd)
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{
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struct list_head *head = &adapter->free_list;
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scb_t *scb;
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/* Unlink command from Free List */
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if( !list_empty(head) ) {
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scb = list_entry(head->next, scb_t, list);
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list_del_init(head->next);
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scb->state = SCB_ACTIVE;
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scb->cmd = cmd;
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scb->dma_type = MEGA_DMA_TYPE_NONE;
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return scb;
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}
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return NULL;
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}
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/**
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* mega_get_ldrv_num()
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* @adapter - pointer to our soft state
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* @cmd - scsi mid layer command
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* @channel - channel on the controller
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*
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* Calculate the logical drive number based on the information in scsi command
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* and the channel number.
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*/
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static inline int
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mega_get_ldrv_num(adapter_t *adapter, Scsi_Cmnd *cmd, int channel)
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{
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int tgt;
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int ldrv_num;
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tgt = cmd->device->id;
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if ( tgt > adapter->this_id )
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tgt--; /* we do not get inquires for initiator id */
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ldrv_num = (channel * 15) + tgt;
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/*
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* If we have a logical drive with boot enabled, project it first
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*/
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if( adapter->boot_ldrv_enabled ) {
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if( ldrv_num == 0 ) {
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ldrv_num = adapter->boot_ldrv;
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}
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else {
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if( ldrv_num <= adapter->boot_ldrv ) {
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ldrv_num--;
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}
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}
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}
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/*
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* If "delete logical drive" feature is enabled on this controller.
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* Do only if at least one delete logical drive operation was done.
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*
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* Also, after logical drive deletion, instead of logical drive number,
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* the value returned should be 0x80+logical drive id.
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*
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* These is valid only for IO commands.
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*/
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if (adapter->support_random_del && adapter->read_ldidmap )
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switch (cmd->cmnd[0]) {
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case READ_6: /* fall through */
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case WRITE_6: /* fall through */
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case READ_10: /* fall through */
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case WRITE_10:
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ldrv_num += 0x80;
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}
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return ldrv_num;
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}
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/**
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* mega_build_cmd()
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* @adapter - pointer to our soft state
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* @cmd - Prepare using this scsi command
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* @busy - busy flag if no resources
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*
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* Prepares a command and scatter gather list for the controller. This routine
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* also finds out if the commands is intended for a logical drive or a
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* physical device and prepares the controller command accordingly.
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*
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* We also re-order the logical drives and physical devices based on their
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* boot settings.
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*/
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static scb_t *
|
|
mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
|
|
{
|
|
mega_ext_passthru *epthru;
|
|
mega_passthru *pthru;
|
|
scb_t *scb;
|
|
mbox_t *mbox;
|
|
u32 seg;
|
|
char islogical;
|
|
int max_ldrv_num;
|
|
int channel = 0;
|
|
int target = 0;
|
|
int ldrv_num = 0; /* logical drive number */
|
|
|
|
/*
|
|
* We know what channels our logical drives are on - mega_find_card()
|
|
*/
|
|
islogical = adapter->logdrv_chan[cmd->device->channel];
|
|
|
|
/*
|
|
* The theory: If physical drive is chosen for boot, all the physical
|
|
* devices are exported before the logical drives, otherwise physical
|
|
* devices are pushed after logical drives, in which case - Kernel sees
|
|
* the physical devices on virtual channel which is obviously converted
|
|
* to actual channel on the HBA.
|
|
*/
|
|
if( adapter->boot_pdrv_enabled ) {
|
|
if( islogical ) {
|
|
/* logical channel */
|
|
channel = cmd->device->channel -
|
|
adapter->product_info.nchannels;
|
|
}
|
|
else {
|
|
/* this is physical channel */
|
|
channel = cmd->device->channel;
|
|
target = cmd->device->id;
|
|
|
|
/*
|
|
* boot from a physical disk, that disk needs to be
|
|
* exposed first IF both the channels are SCSI, then
|
|
* booting from the second channel is not allowed.
|
|
*/
|
|
if( target == 0 ) {
|
|
target = adapter->boot_pdrv_tgt;
|
|
}
|
|
else if( target == adapter->boot_pdrv_tgt ) {
|
|
target = 0;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if( islogical ) {
|
|
/* this is the logical channel */
|
|
channel = cmd->device->channel;
|
|
}
|
|
else {
|
|
/* physical channel */
|
|
channel = cmd->device->channel - NVIRT_CHAN;
|
|
target = cmd->device->id;
|
|
}
|
|
}
|
|
|
|
|
|
if(islogical) {
|
|
|
|
/* have just LUN 0 for each target on virtual channels */
|
|
if (cmd->device->lun) {
|
|
cmd->result = (DID_BAD_TARGET << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
}
|
|
|
|
ldrv_num = mega_get_ldrv_num(adapter, cmd, channel);
|
|
|
|
|
|
max_ldrv_num = (adapter->flag & BOARD_40LD) ?
|
|
MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD;
|
|
|
|
/*
|
|
* max_ldrv_num increases by 0x80 if some logical drive was
|
|
* deleted.
|
|
*/
|
|
if(adapter->read_ldidmap)
|
|
max_ldrv_num += 0x80;
|
|
|
|
if(ldrv_num > max_ldrv_num ) {
|
|
cmd->result = (DID_BAD_TARGET << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
}
|
|
|
|
}
|
|
else {
|
|
if( cmd->device->lun > 7) {
|
|
/*
|
|
* Do not support lun >7 for physically accessed
|
|
* devices
|
|
*/
|
|
cmd->result = (DID_BAD_TARGET << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
*
|
|
* Logical drive commands
|
|
*
|
|
*/
|
|
if(islogical) {
|
|
switch (cmd->cmnd[0]) {
|
|
case TEST_UNIT_READY:
|
|
#if MEGA_HAVE_CLUSTERING
|
|
/*
|
|
* Do we support clustering and is the support enabled
|
|
* If no, return success always
|
|
*/
|
|
if( !adapter->has_cluster ) {
|
|
cmd->result = (DID_OK << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
}
|
|
|
|
if(!(scb = mega_allocate_scb(adapter, cmd))) {
|
|
*busy = 1;
|
|
return NULL;
|
|
}
|
|
|
|
scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
|
|
scb->raw_mbox[2] = MEGA_RESERVATION_STATUS;
|
|
scb->raw_mbox[3] = ldrv_num;
|
|
|
|
scb->dma_direction = PCI_DMA_NONE;
|
|
|
|
return scb;
|
|
#else
|
|
cmd->result = (DID_OK << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
#endif
|
|
|
|
case MODE_SENSE: {
|
|
char *buf;
|
|
struct scatterlist *sg;
|
|
|
|
sg = scsi_sglist(cmd);
|
|
buf = kmap_atomic(sg_page(sg)) + sg->offset;
|
|
|
|
memset(buf, 0, cmd->cmnd[4]);
|
|
kunmap_atomic(buf - sg->offset);
|
|
|
|
cmd->result = (DID_OK << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
}
|
|
|
|
case READ_CAPACITY:
|
|
case INQUIRY:
|
|
|
|
if(!(adapter->flag & (1L << cmd->device->channel))) {
|
|
|
|
printk(KERN_NOTICE
|
|
"scsi%d: scanning scsi channel %d ",
|
|
adapter->host->host_no,
|
|
cmd->device->channel);
|
|
printk("for logical drives.\n");
|
|
|
|
adapter->flag |= (1L << cmd->device->channel);
|
|
}
|
|
|
|
/* Allocate a SCB and initialize passthru */
|
|
if(!(scb = mega_allocate_scb(adapter, cmd))) {
|
|
*busy = 1;
|
|
return NULL;
|
|
}
|
|
pthru = scb->pthru;
|
|
|
|
mbox = (mbox_t *)scb->raw_mbox;
|
|
memset(mbox, 0, sizeof(scb->raw_mbox));
|
|
memset(pthru, 0, sizeof(mega_passthru));
|
|
|
|
pthru->timeout = 0;
|
|
pthru->ars = 1;
|
|
pthru->reqsenselen = 14;
|
|
pthru->islogical = 1;
|
|
pthru->logdrv = ldrv_num;
|
|
pthru->cdblen = cmd->cmd_len;
|
|
memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
|
|
|
|
if( adapter->has_64bit_addr ) {
|
|
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
|
|
}
|
|
else {
|
|
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
|
|
}
|
|
|
|
scb->dma_direction = PCI_DMA_FROMDEVICE;
|
|
|
|
pthru->numsgelements = mega_build_sglist(adapter, scb,
|
|
&pthru->dataxferaddr, &pthru->dataxferlen);
|
|
|
|
mbox->m_out.xferaddr = scb->pthru_dma_addr;
|
|
|
|
return scb;
|
|
|
|
case READ_6:
|
|
case WRITE_6:
|
|
case READ_10:
|
|
case WRITE_10:
|
|
case READ_12:
|
|
case WRITE_12:
|
|
|
|
/* Allocate a SCB and initialize mailbox */
|
|
if(!(scb = mega_allocate_scb(adapter, cmd))) {
|
|
*busy = 1;
|
|
return NULL;
|
|
}
|
|
mbox = (mbox_t *)scb->raw_mbox;
|
|
|
|
memset(mbox, 0, sizeof(scb->raw_mbox));
|
|
mbox->m_out.logdrv = ldrv_num;
|
|
|
|
/*
|
|
* A little hack: 2nd bit is zero for all scsi read
|
|
* commands and is set for all scsi write commands
|
|
*/
|
|
if( adapter->has_64bit_addr ) {
|
|
mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
|
|
MEGA_MBOXCMD_LWRITE64:
|
|
MEGA_MBOXCMD_LREAD64 ;
|
|
}
|
|
else {
|
|
mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
|
|
MEGA_MBOXCMD_LWRITE:
|
|
MEGA_MBOXCMD_LREAD ;
|
|
}
|
|
|
|
/*
|
|
* 6-byte READ(0x08) or WRITE(0x0A) cdb
|
|
*/
|
|
if( cmd->cmd_len == 6 ) {
|
|
mbox->m_out.numsectors = (u32) cmd->cmnd[4];
|
|
mbox->m_out.lba =
|
|
((u32)cmd->cmnd[1] << 16) |
|
|
((u32)cmd->cmnd[2] << 8) |
|
|
(u32)cmd->cmnd[3];
|
|
|
|
mbox->m_out.lba &= 0x1FFFFF;
|
|
|
|
#if MEGA_HAVE_STATS
|
|
/*
|
|
* Take modulo 0x80, since the logical drive
|
|
* number increases by 0x80 when a logical
|
|
* drive was deleted
|
|
*/
|
|
if (*cmd->cmnd == READ_6) {
|
|
adapter->nreads[ldrv_num%0x80]++;
|
|
adapter->nreadblocks[ldrv_num%0x80] +=
|
|
mbox->m_out.numsectors;
|
|
} else {
|
|
adapter->nwrites[ldrv_num%0x80]++;
|
|
adapter->nwriteblocks[ldrv_num%0x80] +=
|
|
mbox->m_out.numsectors;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* 10-byte READ(0x28) or WRITE(0x2A) cdb
|
|
*/
|
|
if( cmd->cmd_len == 10 ) {
|
|
mbox->m_out.numsectors =
|
|
(u32)cmd->cmnd[8] |
|
|
((u32)cmd->cmnd[7] << 8);
|
|
mbox->m_out.lba =
|
|
((u32)cmd->cmnd[2] << 24) |
|
|
((u32)cmd->cmnd[3] << 16) |
|
|
((u32)cmd->cmnd[4] << 8) |
|
|
(u32)cmd->cmnd[5];
|
|
|
|
#if MEGA_HAVE_STATS
|
|
if (*cmd->cmnd == READ_10) {
|
|
adapter->nreads[ldrv_num%0x80]++;
|
|
adapter->nreadblocks[ldrv_num%0x80] +=
|
|
mbox->m_out.numsectors;
|
|
} else {
|
|
adapter->nwrites[ldrv_num%0x80]++;
|
|
adapter->nwriteblocks[ldrv_num%0x80] +=
|
|
mbox->m_out.numsectors;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* 12-byte READ(0xA8) or WRITE(0xAA) cdb
|
|
*/
|
|
if( cmd->cmd_len == 12 ) {
|
|
mbox->m_out.lba =
|
|
((u32)cmd->cmnd[2] << 24) |
|
|
((u32)cmd->cmnd[3] << 16) |
|
|
((u32)cmd->cmnd[4] << 8) |
|
|
(u32)cmd->cmnd[5];
|
|
|
|
mbox->m_out.numsectors =
|
|
((u32)cmd->cmnd[6] << 24) |
|
|
((u32)cmd->cmnd[7] << 16) |
|
|
((u32)cmd->cmnd[8] << 8) |
|
|
(u32)cmd->cmnd[9];
|
|
|
|
#if MEGA_HAVE_STATS
|
|
if (*cmd->cmnd == READ_12) {
|
|
adapter->nreads[ldrv_num%0x80]++;
|
|
adapter->nreadblocks[ldrv_num%0x80] +=
|
|
mbox->m_out.numsectors;
|
|
} else {
|
|
adapter->nwrites[ldrv_num%0x80]++;
|
|
adapter->nwriteblocks[ldrv_num%0x80] +=
|
|
mbox->m_out.numsectors;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* If it is a read command
|
|
*/
|
|
if( (*cmd->cmnd & 0x0F) == 0x08 ) {
|
|
scb->dma_direction = PCI_DMA_FROMDEVICE;
|
|
}
|
|
else {
|
|
scb->dma_direction = PCI_DMA_TODEVICE;
|
|
}
|
|
|
|
/* Calculate Scatter-Gather info */
|
|
mbox->m_out.numsgelements = mega_build_sglist(adapter, scb,
|
|
(u32 *)&mbox->m_out.xferaddr, &seg);
|
|
|
|
return scb;
|
|
|
|
#if MEGA_HAVE_CLUSTERING
|
|
case RESERVE: /* Fall through */
|
|
case RELEASE:
|
|
|
|
/*
|
|
* Do we support clustering and is the support enabled
|
|
*/
|
|
if( ! adapter->has_cluster ) {
|
|
|
|
cmd->result = (DID_BAD_TARGET << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
}
|
|
|
|
/* Allocate a SCB and initialize mailbox */
|
|
if(!(scb = mega_allocate_scb(adapter, cmd))) {
|
|
*busy = 1;
|
|
return NULL;
|
|
}
|
|
|
|
scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
|
|
scb->raw_mbox[2] = ( *cmd->cmnd == RESERVE ) ?
|
|
MEGA_RESERVE_LD : MEGA_RELEASE_LD;
|
|
|
|
scb->raw_mbox[3] = ldrv_num;
|
|
|
|
scb->dma_direction = PCI_DMA_NONE;
|
|
|
|
return scb;
|
|
#endif
|
|
|
|
default:
|
|
cmd->result = (DID_BAD_TARGET << 16);
|
|
cmd->scsi_done(cmd);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Passthru drive commands
|
|
*/
|
|
else {
|
|
/* Allocate a SCB and initialize passthru */
|
|
if(!(scb = mega_allocate_scb(adapter, cmd))) {
|
|
*busy = 1;
|
|
return NULL;
|
|
}
|
|
|
|
mbox = (mbox_t *)scb->raw_mbox;
|
|
memset(mbox, 0, sizeof(scb->raw_mbox));
|
|
|
|
if( adapter->support_ext_cdb ) {
|
|
|
|
epthru = mega_prepare_extpassthru(adapter, scb, cmd,
|
|
channel, target);
|
|
|
|
mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU;
|
|
|
|
mbox->m_out.xferaddr = scb->epthru_dma_addr;
|
|
|
|
}
|
|
else {
|
|
|
|
pthru = mega_prepare_passthru(adapter, scb, cmd,
|
|
channel, target);
|
|
|
|
/* Initialize mailbox */
|
|
if( adapter->has_64bit_addr ) {
|
|
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
|
|
}
|
|
else {
|
|
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
|
|
}
|
|
|
|
mbox->m_out.xferaddr = scb->pthru_dma_addr;
|
|
|
|
}
|
|
return scb;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_prepare_passthru()
|
|
* @adapter - pointer to our soft state
|
|
* @scb - our scsi control block
|
|
* @cmd - scsi command from the mid-layer
|
|
* @channel - actual channel on the controller
|
|
* @target - actual id on the controller.
|
|
*
|
|
* prepare a command for the scsi physical devices.
|
|
*/
|
|
static mega_passthru *
|
|
mega_prepare_passthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd,
|
|
int channel, int target)
|
|
{
|
|
mega_passthru *pthru;
|
|
|
|
pthru = scb->pthru;
|
|
memset(pthru, 0, sizeof (mega_passthru));
|
|
|
|
/* 0=6sec/1=60sec/2=10min/3=3hrs */
|
|
pthru->timeout = 2;
|
|
|
|
pthru->ars = 1;
|
|
pthru->reqsenselen = 14;
|
|
pthru->islogical = 0;
|
|
|
|
pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
|
|
|
|
pthru->target = (adapter->flag & BOARD_40LD) ?
|
|
(channel << 4) | target : target;
|
|
|
|
pthru->cdblen = cmd->cmd_len;
|
|
pthru->logdrv = cmd->device->lun;
|
|
|
|
memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
|
|
|
|
/* Not sure about the direction */
|
|
scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
|
|
|
|
/* Special Code for Handling READ_CAPA/ INQ using bounce buffers */
|
|
switch (cmd->cmnd[0]) {
|
|
case INQUIRY:
|
|
case READ_CAPACITY:
|
|
if(!(adapter->flag & (1L << cmd->device->channel))) {
|
|
|
|
printk(KERN_NOTICE
|
|
"scsi%d: scanning scsi channel %d [P%d] ",
|
|
adapter->host->host_no,
|
|
cmd->device->channel, channel);
|
|
printk("for physical devices.\n");
|
|
|
|
adapter->flag |= (1L << cmd->device->channel);
|
|
}
|
|
/* Fall through */
|
|
default:
|
|
pthru->numsgelements = mega_build_sglist(adapter, scb,
|
|
&pthru->dataxferaddr, &pthru->dataxferlen);
|
|
break;
|
|
}
|
|
return pthru;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_prepare_extpassthru()
|
|
* @adapter - pointer to our soft state
|
|
* @scb - our scsi control block
|
|
* @cmd - scsi command from the mid-layer
|
|
* @channel - actual channel on the controller
|
|
* @target - actual id on the controller.
|
|
*
|
|
* prepare a command for the scsi physical devices. This rountine prepares
|
|
* commands for devices which can take extended CDBs (>10 bytes)
|
|
*/
|
|
static mega_ext_passthru *
|
|
mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, Scsi_Cmnd *cmd,
|
|
int channel, int target)
|
|
{
|
|
mega_ext_passthru *epthru;
|
|
|
|
epthru = scb->epthru;
|
|
memset(epthru, 0, sizeof(mega_ext_passthru));
|
|
|
|
/* 0=6sec/1=60sec/2=10min/3=3hrs */
|
|
epthru->timeout = 2;
|
|
|
|
epthru->ars = 1;
|
|
epthru->reqsenselen = 14;
|
|
epthru->islogical = 0;
|
|
|
|
epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
|
|
epthru->target = (adapter->flag & BOARD_40LD) ?
|
|
(channel << 4) | target : target;
|
|
|
|
epthru->cdblen = cmd->cmd_len;
|
|
epthru->logdrv = cmd->device->lun;
|
|
|
|
memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len);
|
|
|
|
/* Not sure about the direction */
|
|
scb->dma_direction = PCI_DMA_BIDIRECTIONAL;
|
|
|
|
switch(cmd->cmnd[0]) {
|
|
case INQUIRY:
|
|
case READ_CAPACITY:
|
|
if(!(adapter->flag & (1L << cmd->device->channel))) {
|
|
|
|
printk(KERN_NOTICE
|
|
"scsi%d: scanning scsi channel %d [P%d] ",
|
|
adapter->host->host_no,
|
|
cmd->device->channel, channel);
|
|
printk("for physical devices.\n");
|
|
|
|
adapter->flag |= (1L << cmd->device->channel);
|
|
}
|
|
/* Fall through */
|
|
default:
|
|
epthru->numsgelements = mega_build_sglist(adapter, scb,
|
|
&epthru->dataxferaddr, &epthru->dataxferlen);
|
|
break;
|
|
}
|
|
|
|
return epthru;
|
|
}
|
|
|
|
static void
|
|
__mega_runpendq(adapter_t *adapter)
|
|
{
|
|
scb_t *scb;
|
|
struct list_head *pos, *next;
|
|
|
|
/* Issue any pending commands to the card */
|
|
list_for_each_safe(pos, next, &adapter->pending_list) {
|
|
|
|
scb = list_entry(pos, scb_t, list);
|
|
|
|
if( !(scb->state & SCB_ISSUED) ) {
|
|
|
|
if( issue_scb(adapter, scb) != 0 )
|
|
return;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* issue_scb()
|
|
* @adapter - pointer to our soft state
|
|
* @scb - scsi control block
|
|
*
|
|
* Post a command to the card if the mailbox is available, otherwise return
|
|
* busy. We also take the scb from the pending list if the mailbox is
|
|
* available.
|
|
*/
|
|
static int
|
|
issue_scb(adapter_t *adapter, scb_t *scb)
|
|
{
|
|
volatile mbox64_t *mbox64 = adapter->mbox64;
|
|
volatile mbox_t *mbox = adapter->mbox;
|
|
unsigned int i = 0;
|
|
|
|
if(unlikely(mbox->m_in.busy)) {
|
|
do {
|
|
udelay(1);
|
|
i++;
|
|
} while( mbox->m_in.busy && (i < max_mbox_busy_wait) );
|
|
|
|
if(mbox->m_in.busy) return -1;
|
|
}
|
|
|
|
/* Copy mailbox data into host structure */
|
|
memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox,
|
|
sizeof(struct mbox_out));
|
|
|
|
mbox->m_out.cmdid = scb->idx; /* Set cmdid */
|
|
mbox->m_in.busy = 1; /* Set busy */
|
|
|
|
|
|
/*
|
|
* Increment the pending queue counter
|
|
*/
|
|
atomic_inc(&adapter->pend_cmds);
|
|
|
|
switch (mbox->m_out.cmd) {
|
|
case MEGA_MBOXCMD_LREAD64:
|
|
case MEGA_MBOXCMD_LWRITE64:
|
|
case MEGA_MBOXCMD_PASSTHRU64:
|
|
case MEGA_MBOXCMD_EXTPTHRU:
|
|
mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
|
|
mbox64->xfer_segment_hi = 0;
|
|
mbox->m_out.xferaddr = 0xFFFFFFFF;
|
|
break;
|
|
default:
|
|
mbox64->xfer_segment_lo = 0;
|
|
mbox64->xfer_segment_hi = 0;
|
|
}
|
|
|
|
/*
|
|
* post the command
|
|
*/
|
|
scb->state |= SCB_ISSUED;
|
|
|
|
if( likely(adapter->flag & BOARD_MEMMAP) ) {
|
|
mbox->m_in.poll = 0;
|
|
mbox->m_in.ack = 0;
|
|
WRINDOOR(adapter, adapter->mbox_dma | 0x1);
|
|
}
|
|
else {
|
|
irq_enable(adapter);
|
|
issue_command(adapter);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Wait until the controller's mailbox is available
|
|
*/
|
|
static inline int
|
|
mega_busywait_mbox (adapter_t *adapter)
|
|
{
|
|
if (adapter->mbox->m_in.busy)
|
|
return __mega_busywait_mbox(adapter);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* issue_scb_block()
|
|
* @adapter - pointer to our soft state
|
|
* @raw_mbox - the mailbox
|
|
*
|
|
* Issue a scb in synchronous and non-interrupt mode
|
|
*/
|
|
static int
|
|
issue_scb_block(adapter_t *adapter, u_char *raw_mbox)
|
|
{
|
|
volatile mbox64_t *mbox64 = adapter->mbox64;
|
|
volatile mbox_t *mbox = adapter->mbox;
|
|
u8 byte;
|
|
|
|
/* Wait until mailbox is free */
|
|
if(mega_busywait_mbox (adapter))
|
|
goto bug_blocked_mailbox;
|
|
|
|
/* Copy mailbox data into host structure */
|
|
memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out));
|
|
mbox->m_out.cmdid = 0xFE;
|
|
mbox->m_in.busy = 1;
|
|
|
|
switch (raw_mbox[0]) {
|
|
case MEGA_MBOXCMD_LREAD64:
|
|
case MEGA_MBOXCMD_LWRITE64:
|
|
case MEGA_MBOXCMD_PASSTHRU64:
|
|
case MEGA_MBOXCMD_EXTPTHRU:
|
|
mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
|
|
mbox64->xfer_segment_hi = 0;
|
|
mbox->m_out.xferaddr = 0xFFFFFFFF;
|
|
break;
|
|
default:
|
|
mbox64->xfer_segment_lo = 0;
|
|
mbox64->xfer_segment_hi = 0;
|
|
}
|
|
|
|
if( likely(adapter->flag & BOARD_MEMMAP) ) {
|
|
mbox->m_in.poll = 0;
|
|
mbox->m_in.ack = 0;
|
|
mbox->m_in.numstatus = 0xFF;
|
|
mbox->m_in.status = 0xFF;
|
|
WRINDOOR(adapter, adapter->mbox_dma | 0x1);
|
|
|
|
while((volatile u8)mbox->m_in.numstatus == 0xFF)
|
|
cpu_relax();
|
|
|
|
mbox->m_in.numstatus = 0xFF;
|
|
|
|
while( (volatile u8)mbox->m_in.poll != 0x77 )
|
|
cpu_relax();
|
|
|
|
mbox->m_in.poll = 0;
|
|
mbox->m_in.ack = 0x77;
|
|
|
|
WRINDOOR(adapter, adapter->mbox_dma | 0x2);
|
|
|
|
while(RDINDOOR(adapter) & 0x2)
|
|
cpu_relax();
|
|
}
|
|
else {
|
|
irq_disable(adapter);
|
|
issue_command(adapter);
|
|
|
|
while (!((byte = irq_state(adapter)) & INTR_VALID))
|
|
cpu_relax();
|
|
|
|
set_irq_state(adapter, byte);
|
|
irq_enable(adapter);
|
|
irq_ack(adapter);
|
|
}
|
|
|
|
return mbox->m_in.status;
|
|
|
|
bug_blocked_mailbox:
|
|
printk(KERN_WARNING "megaraid: Blocked mailbox......!!\n");
|
|
udelay (1000);
|
|
return -1;
|
|
}
|
|
|
|
|
|
/**
|
|
* megaraid_isr_iomapped()
|
|
* @irq - irq
|
|
* @devp - pointer to our soft state
|
|
*
|
|
* Interrupt service routine for io-mapped controllers.
|
|
* Find out if our device is interrupting. If yes, acknowledge the interrupt
|
|
* and service the completed commands.
|
|
*/
|
|
static irqreturn_t
|
|
megaraid_isr_iomapped(int irq, void *devp)
|
|
{
|
|
adapter_t *adapter = devp;
|
|
unsigned long flags;
|
|
u8 status;
|
|
u8 nstatus;
|
|
u8 completed[MAX_FIRMWARE_STATUS];
|
|
u8 byte;
|
|
int handled = 0;
|
|
|
|
|
|
/*
|
|
* loop till F/W has more commands for us to complete.
|
|
*/
|
|
spin_lock_irqsave(&adapter->lock, flags);
|
|
|
|
do {
|
|
/* Check if a valid interrupt is pending */
|
|
byte = irq_state(adapter);
|
|
if( (byte & VALID_INTR_BYTE) == 0 ) {
|
|
/*
|
|
* No more pending commands
|
|
*/
|
|
goto out_unlock;
|
|
}
|
|
set_irq_state(adapter, byte);
|
|
|
|
while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
|
|
== 0xFF)
|
|
cpu_relax();
|
|
adapter->mbox->m_in.numstatus = 0xFF;
|
|
|
|
status = adapter->mbox->m_in.status;
|
|
|
|
/*
|
|
* decrement the pending queue counter
|
|
*/
|
|
atomic_sub(nstatus, &adapter->pend_cmds);
|
|
|
|
memcpy(completed, (void *)adapter->mbox->m_in.completed,
|
|
nstatus);
|
|
|
|
/* Acknowledge interrupt */
|
|
irq_ack(adapter);
|
|
|
|
mega_cmd_done(adapter, completed, nstatus, status);
|
|
|
|
mega_rundoneq(adapter);
|
|
|
|
handled = 1;
|
|
|
|
/* Loop through any pending requests */
|
|
if(atomic_read(&adapter->quiescent) == 0) {
|
|
mega_runpendq(adapter);
|
|
}
|
|
|
|
} while(1);
|
|
|
|
out_unlock:
|
|
|
|
spin_unlock_irqrestore(&adapter->lock, flags);
|
|
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
|
|
/**
|
|
* megaraid_isr_memmapped()
|
|
* @irq - irq
|
|
* @devp - pointer to our soft state
|
|
*
|
|
* Interrupt service routine for memory-mapped controllers.
|
|
* Find out if our device is interrupting. If yes, acknowledge the interrupt
|
|
* and service the completed commands.
|
|
*/
|
|
static irqreturn_t
|
|
megaraid_isr_memmapped(int irq, void *devp)
|
|
{
|
|
adapter_t *adapter = devp;
|
|
unsigned long flags;
|
|
u8 status;
|
|
u32 dword = 0;
|
|
u8 nstatus;
|
|
u8 completed[MAX_FIRMWARE_STATUS];
|
|
int handled = 0;
|
|
|
|
|
|
/*
|
|
* loop till F/W has more commands for us to complete.
|
|
*/
|
|
spin_lock_irqsave(&adapter->lock, flags);
|
|
|
|
do {
|
|
/* Check if a valid interrupt is pending */
|
|
dword = RDOUTDOOR(adapter);
|
|
if(dword != 0x10001234) {
|
|
/*
|
|
* No more pending commands
|
|
*/
|
|
goto out_unlock;
|
|
}
|
|
WROUTDOOR(adapter, 0x10001234);
|
|
|
|
while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
|
|
== 0xFF) {
|
|
cpu_relax();
|
|
}
|
|
adapter->mbox->m_in.numstatus = 0xFF;
|
|
|
|
status = adapter->mbox->m_in.status;
|
|
|
|
/*
|
|
* decrement the pending queue counter
|
|
*/
|
|
atomic_sub(nstatus, &adapter->pend_cmds);
|
|
|
|
memcpy(completed, (void *)adapter->mbox->m_in.completed,
|
|
nstatus);
|
|
|
|
/* Acknowledge interrupt */
|
|
WRINDOOR(adapter, 0x2);
|
|
|
|
handled = 1;
|
|
|
|
while( RDINDOOR(adapter) & 0x02 )
|
|
cpu_relax();
|
|
|
|
mega_cmd_done(adapter, completed, nstatus, status);
|
|
|
|
mega_rundoneq(adapter);
|
|
|
|
/* Loop through any pending requests */
|
|
if(atomic_read(&adapter->quiescent) == 0) {
|
|
mega_runpendq(adapter);
|
|
}
|
|
|
|
} while(1);
|
|
|
|
out_unlock:
|
|
|
|
spin_unlock_irqrestore(&adapter->lock, flags);
|
|
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
/**
|
|
* mega_cmd_done()
|
|
* @adapter - pointer to our soft state
|
|
* @completed - array of ids of completed commands
|
|
* @nstatus - number of completed commands
|
|
* @status - status of the last command completed
|
|
*
|
|
* Complete the commands and call the scsi mid-layer callback hooks.
|
|
*/
|
|
static void
|
|
mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
|
|
{
|
|
mega_ext_passthru *epthru = NULL;
|
|
struct scatterlist *sgl;
|
|
Scsi_Cmnd *cmd = NULL;
|
|
mega_passthru *pthru = NULL;
|
|
mbox_t *mbox = NULL;
|
|
u8 c;
|
|
scb_t *scb;
|
|
int islogical;
|
|
int cmdid;
|
|
int i;
|
|
|
|
/*
|
|
* for all the commands completed, call the mid-layer callback routine
|
|
* and free the scb.
|
|
*/
|
|
for( i = 0; i < nstatus; i++ ) {
|
|
|
|
cmdid = completed[i];
|
|
|
|
/*
|
|
* Only free SCBs for the commands coming down from the
|
|
* mid-layer, not for which were issued internally
|
|
*
|
|
* For internal command, restore the status returned by the
|
|
* firmware so that user can interpret it.
|
|
*/
|
|
if (cmdid == CMDID_INT_CMDS) {
|
|
scb = &adapter->int_scb;
|
|
|
|
list_del_init(&scb->list);
|
|
scb->state = SCB_FREE;
|
|
|
|
adapter->int_status = status;
|
|
complete(&adapter->int_waitq);
|
|
} else {
|
|
scb = &adapter->scb_list[cmdid];
|
|
|
|
/*
|
|
* Make sure f/w has completed a valid command
|
|
*/
|
|
if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) {
|
|
printk(KERN_CRIT
|
|
"megaraid: invalid command ");
|
|
printk("Id %d, scb->state:%x, scsi cmd:%p\n",
|
|
cmdid, scb->state, scb->cmd);
|
|
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Was a abort issued for this command
|
|
*/
|
|
if( scb->state & SCB_ABORT ) {
|
|
|
|
printk(KERN_WARNING
|
|
"megaraid: aborted cmd [%x] complete.\n",
|
|
scb->idx);
|
|
|
|
scb->cmd->result = (DID_ABORT << 16);
|
|
|
|
list_add_tail(SCSI_LIST(scb->cmd),
|
|
&adapter->completed_list);
|
|
|
|
mega_free_scb(adapter, scb);
|
|
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Was a reset issued for this command
|
|
*/
|
|
if( scb->state & SCB_RESET ) {
|
|
|
|
printk(KERN_WARNING
|
|
"megaraid: reset cmd [%x] complete.\n",
|
|
scb->idx);
|
|
|
|
scb->cmd->result = (DID_RESET << 16);
|
|
|
|
list_add_tail(SCSI_LIST(scb->cmd),
|
|
&adapter->completed_list);
|
|
|
|
mega_free_scb (adapter, scb);
|
|
|
|
continue;
|
|
}
|
|
|
|
cmd = scb->cmd;
|
|
pthru = scb->pthru;
|
|
epthru = scb->epthru;
|
|
mbox = (mbox_t *)scb->raw_mbox;
|
|
|
|
#if MEGA_HAVE_STATS
|
|
{
|
|
|
|
int logdrv = mbox->m_out.logdrv;
|
|
|
|
islogical = adapter->logdrv_chan[cmd->channel];
|
|
/*
|
|
* Maintain an error counter for the logical drive.
|
|
* Some application like SNMP agent need such
|
|
* statistics
|
|
*/
|
|
if( status && islogical && (cmd->cmnd[0] == READ_6 ||
|
|
cmd->cmnd[0] == READ_10 ||
|
|
cmd->cmnd[0] == READ_12)) {
|
|
/*
|
|
* Logical drive number increases by 0x80 when
|
|
* a logical drive is deleted
|
|
*/
|
|
adapter->rd_errors[logdrv%0x80]++;
|
|
}
|
|
|
|
if( status && islogical && (cmd->cmnd[0] == WRITE_6 ||
|
|
cmd->cmnd[0] == WRITE_10 ||
|
|
cmd->cmnd[0] == WRITE_12)) {
|
|
/*
|
|
* Logical drive number increases by 0x80 when
|
|
* a logical drive is deleted
|
|
*/
|
|
adapter->wr_errors[logdrv%0x80]++;
|
|
}
|
|
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Do not return the presence of hard disk on the channel so,
|
|
* inquiry sent, and returned data==hard disk or removable
|
|
* hard disk and not logical, request should return failure! -
|
|
* PJ
|
|
*/
|
|
islogical = adapter->logdrv_chan[cmd->device->channel];
|
|
if( cmd->cmnd[0] == INQUIRY && !islogical ) {
|
|
|
|
sgl = scsi_sglist(cmd);
|
|
if( sg_page(sgl) ) {
|
|
c = *(unsigned char *) sg_virt(&sgl[0]);
|
|
} else {
|
|
printk(KERN_WARNING
|
|
"megaraid: invalid sg.\n");
|
|
c = 0;
|
|
}
|
|
|
|
if(IS_RAID_CH(adapter, cmd->device->channel) &&
|
|
((c & 0x1F ) == TYPE_DISK)) {
|
|
status = 0xF0;
|
|
}
|
|
}
|
|
|
|
/* clear result; otherwise, success returns corrupt value */
|
|
cmd->result = 0;
|
|
|
|
/* Convert MegaRAID status to Linux error code */
|
|
switch (status) {
|
|
case 0x00: /* SUCCESS , i.e. SCSI_STATUS_GOOD */
|
|
cmd->result |= (DID_OK << 16);
|
|
break;
|
|
|
|
case 0x02: /* ERROR_ABORTED, i.e.
|
|
SCSI_STATUS_CHECK_CONDITION */
|
|
|
|
/* set sense_buffer and result fields */
|
|
if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU ||
|
|
mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) {
|
|
|
|
memcpy(cmd->sense_buffer, pthru->reqsensearea,
|
|
14);
|
|
|
|
cmd->result = (DRIVER_SENSE << 24) |
|
|
(DID_OK << 16) |
|
|
(CHECK_CONDITION << 1);
|
|
}
|
|
else {
|
|
if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) {
|
|
|
|
memcpy(cmd->sense_buffer,
|
|
epthru->reqsensearea, 14);
|
|
|
|
cmd->result = (DRIVER_SENSE << 24) |
|
|
(DID_OK << 16) |
|
|
(CHECK_CONDITION << 1);
|
|
} else {
|
|
cmd->sense_buffer[0] = 0x70;
|
|
cmd->sense_buffer[2] = ABORTED_COMMAND;
|
|
cmd->result |= (CHECK_CONDITION << 1);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x08: /* ERR_DEST_DRIVE_FAILED, i.e.
|
|
SCSI_STATUS_BUSY */
|
|
cmd->result |= (DID_BUS_BUSY << 16) | status;
|
|
break;
|
|
|
|
default:
|
|
#if MEGA_HAVE_CLUSTERING
|
|
/*
|
|
* If TEST_UNIT_READY fails, we know
|
|
* MEGA_RESERVATION_STATUS failed
|
|
*/
|
|
if( cmd->cmnd[0] == TEST_UNIT_READY ) {
|
|
cmd->result |= (DID_ERROR << 16) |
|
|
(RESERVATION_CONFLICT << 1);
|
|
}
|
|
else
|
|
/*
|
|
* Error code returned is 1 if Reserve or Release
|
|
* failed or the input parameter is invalid
|
|
*/
|
|
if( status == 1 &&
|
|
(cmd->cmnd[0] == RESERVE ||
|
|
cmd->cmnd[0] == RELEASE) ) {
|
|
|
|
cmd->result |= (DID_ERROR << 16) |
|
|
(RESERVATION_CONFLICT << 1);
|
|
}
|
|
else
|
|
#endif
|
|
cmd->result |= (DID_BAD_TARGET << 16)|status;
|
|
}
|
|
|
|
mega_free_scb(adapter, scb);
|
|
|
|
/* Add Scsi_Command to end of completed queue */
|
|
list_add_tail(SCSI_LIST(cmd), &adapter->completed_list);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* mega_runpendq()
|
|
*
|
|
* Run through the list of completed requests and finish it
|
|
*/
|
|
static void
|
|
mega_rundoneq (adapter_t *adapter)
|
|
{
|
|
Scsi_Cmnd *cmd;
|
|
struct list_head *pos;
|
|
|
|
list_for_each(pos, &adapter->completed_list) {
|
|
|
|
struct scsi_pointer* spos = (struct scsi_pointer *)pos;
|
|
|
|
cmd = list_entry(spos, Scsi_Cmnd, SCp);
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
|
|
INIT_LIST_HEAD(&adapter->completed_list);
|
|
}
|
|
|
|
|
|
/*
|
|
* Free a SCB structure
|
|
* Note: We assume the scsi commands associated with this scb is not free yet.
|
|
*/
|
|
static void
|
|
mega_free_scb(adapter_t *adapter, scb_t *scb)
|
|
{
|
|
switch( scb->dma_type ) {
|
|
|
|
case MEGA_DMA_TYPE_NONE:
|
|
break;
|
|
|
|
case MEGA_SGLIST:
|
|
scsi_dma_unmap(scb->cmd);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Remove from the pending list
|
|
*/
|
|
list_del_init(&scb->list);
|
|
|
|
/* Link the scb back into free list */
|
|
scb->state = SCB_FREE;
|
|
scb->cmd = NULL;
|
|
|
|
list_add(&scb->list, &adapter->free_list);
|
|
}
|
|
|
|
|
|
static int
|
|
__mega_busywait_mbox (adapter_t *adapter)
|
|
{
|
|
volatile mbox_t *mbox = adapter->mbox;
|
|
long counter;
|
|
|
|
for (counter = 0; counter < 10000; counter++) {
|
|
if (!mbox->m_in.busy)
|
|
return 0;
|
|
udelay(100);
|
|
cond_resched();
|
|
}
|
|
return -1; /* give up after 1 second */
|
|
}
|
|
|
|
/*
|
|
* Copies data to SGLIST
|
|
* Note: For 64 bit cards, we need a minimum of one SG element for read/write
|
|
*/
|
|
static int
|
|
mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
|
|
{
|
|
struct scatterlist *sg;
|
|
Scsi_Cmnd *cmd;
|
|
int sgcnt;
|
|
int idx;
|
|
|
|
cmd = scb->cmd;
|
|
|
|
/*
|
|
* Copy Scatter-Gather list info into controller structure.
|
|
*
|
|
* The number of sg elements returned must not exceed our limit
|
|
*/
|
|
sgcnt = scsi_dma_map(cmd);
|
|
|
|
scb->dma_type = MEGA_SGLIST;
|
|
|
|
BUG_ON(sgcnt > adapter->sglen || sgcnt < 0);
|
|
|
|
*len = 0;
|
|
|
|
if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) {
|
|
sg = scsi_sglist(cmd);
|
|
scb->dma_h_bulkdata = sg_dma_address(sg);
|
|
*buf = (u32)scb->dma_h_bulkdata;
|
|
*len = sg_dma_len(sg);
|
|
return 0;
|
|
}
|
|
|
|
scsi_for_each_sg(cmd, sg, sgcnt, idx) {
|
|
if (adapter->has_64bit_addr) {
|
|
scb->sgl64[idx].address = sg_dma_address(sg);
|
|
*len += scb->sgl64[idx].length = sg_dma_len(sg);
|
|
} else {
|
|
scb->sgl[idx].address = sg_dma_address(sg);
|
|
*len += scb->sgl[idx].length = sg_dma_len(sg);
|
|
}
|
|
}
|
|
|
|
/* Reset pointer and length fields */
|
|
*buf = scb->sgl_dma_addr;
|
|
|
|
/* Return count of SG requests */
|
|
return sgcnt;
|
|
}
|
|
|
|
|
|
/*
|
|
* mega_8_to_40ld()
|
|
*
|
|
* takes all info in AdapterInquiry structure and puts it into ProductInfo and
|
|
* Enquiry3 structures for later use
|
|
*/
|
|
static void
|
|
mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3,
|
|
mega_product_info *product_info)
|
|
{
|
|
int i;
|
|
|
|
product_info->max_commands = inquiry->adapter_info.max_commands;
|
|
enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate;
|
|
product_info->nchannels = inquiry->adapter_info.nchannels;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
product_info->fw_version[i] =
|
|
inquiry->adapter_info.fw_version[i];
|
|
|
|
product_info->bios_version[i] =
|
|
inquiry->adapter_info.bios_version[i];
|
|
}
|
|
enquiry3->cache_flush_interval =
|
|
inquiry->adapter_info.cache_flush_interval;
|
|
|
|
product_info->dram_size = inquiry->adapter_info.dram_size;
|
|
|
|
enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv;
|
|
|
|
for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) {
|
|
enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i];
|
|
enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i];
|
|
enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i];
|
|
}
|
|
|
|
for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++)
|
|
enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i];
|
|
}
|
|
|
|
static inline void
|
|
mega_free_sgl(adapter_t *adapter)
|
|
{
|
|
scb_t *scb;
|
|
int i;
|
|
|
|
for(i = 0; i < adapter->max_cmds; i++) {
|
|
|
|
scb = &adapter->scb_list[i];
|
|
|
|
if( scb->sgl64 ) {
|
|
pci_free_consistent(adapter->dev,
|
|
sizeof(mega_sgl64) * adapter->sglen,
|
|
scb->sgl64,
|
|
scb->sgl_dma_addr);
|
|
|
|
scb->sgl64 = NULL;
|
|
}
|
|
|
|
if( scb->pthru ) {
|
|
pci_free_consistent(adapter->dev, sizeof(mega_passthru),
|
|
scb->pthru, scb->pthru_dma_addr);
|
|
|
|
scb->pthru = NULL;
|
|
}
|
|
|
|
if( scb->epthru ) {
|
|
pci_free_consistent(adapter->dev,
|
|
sizeof(mega_ext_passthru),
|
|
scb->epthru, scb->epthru_dma_addr);
|
|
|
|
scb->epthru = NULL;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Get information about the card/driver
|
|
*/
|
|
const char *
|
|
megaraid_info(struct Scsi_Host *host)
|
|
{
|
|
static char buffer[512];
|
|
adapter_t *adapter;
|
|
|
|
adapter = (adapter_t *)host->hostdata;
|
|
|
|
sprintf (buffer,
|
|
"LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns",
|
|
adapter->fw_version, adapter->product_info.max_commands,
|
|
adapter->host->max_id, adapter->host->max_channel,
|
|
(u32)adapter->host->max_lun);
|
|
return buffer;
|
|
}
|
|
|
|
/*
|
|
* Abort a previous SCSI request. Only commands on the pending list can be
|
|
* aborted. All the commands issued to the F/W must complete.
|
|
*/
|
|
static int
|
|
megaraid_abort(Scsi_Cmnd *cmd)
|
|
{
|
|
adapter_t *adapter;
|
|
int rval;
|
|
|
|
adapter = (adapter_t *)cmd->device->host->hostdata;
|
|
|
|
rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT);
|
|
|
|
/*
|
|
* This is required here to complete any completed requests
|
|
* to be communicated over to the mid layer.
|
|
*/
|
|
mega_rundoneq(adapter);
|
|
|
|
return rval;
|
|
}
|
|
|
|
|
|
static int
|
|
megaraid_reset(struct scsi_cmnd *cmd)
|
|
{
|
|
adapter_t *adapter;
|
|
megacmd_t mc;
|
|
int rval;
|
|
|
|
adapter = (adapter_t *)cmd->device->host->hostdata;
|
|
|
|
#if MEGA_HAVE_CLUSTERING
|
|
mc.cmd = MEGA_CLUSTER_CMD;
|
|
mc.opcode = MEGA_RESET_RESERVATIONS;
|
|
|
|
if( mega_internal_command(adapter, &mc, NULL) != 0 ) {
|
|
printk(KERN_WARNING
|
|
"megaraid: reservation reset failed.\n");
|
|
}
|
|
else {
|
|
printk(KERN_INFO "megaraid: reservation reset.\n");
|
|
}
|
|
#endif
|
|
|
|
spin_lock_irq(&adapter->lock);
|
|
|
|
rval = megaraid_abort_and_reset(adapter, cmd, SCB_RESET);
|
|
|
|
/*
|
|
* This is required here to complete any completed requests
|
|
* to be communicated over to the mid layer.
|
|
*/
|
|
mega_rundoneq(adapter);
|
|
spin_unlock_irq(&adapter->lock);
|
|
|
|
return rval;
|
|
}
|
|
|
|
/**
|
|
* megaraid_abort_and_reset()
|
|
* @adapter - megaraid soft state
|
|
* @cmd - scsi command to be aborted or reset
|
|
* @aor - abort or reset flag
|
|
*
|
|
* Try to locate the scsi command in the pending queue. If found and is not
|
|
* issued to the controller, abort/reset it. Otherwise return failure
|
|
*/
|
|
static int
|
|
megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor)
|
|
{
|
|
struct list_head *pos, *next;
|
|
scb_t *scb;
|
|
|
|
printk(KERN_WARNING "megaraid: %s cmd=%x <c=%d t=%d l=%d>\n",
|
|
(aor == SCB_ABORT)? "ABORTING":"RESET",
|
|
cmd->cmnd[0], cmd->device->channel,
|
|
cmd->device->id, (u32)cmd->device->lun);
|
|
|
|
if(list_empty(&adapter->pending_list))
|
|
return FAILED;
|
|
|
|
list_for_each_safe(pos, next, &adapter->pending_list) {
|
|
|
|
scb = list_entry(pos, scb_t, list);
|
|
|
|
if (scb->cmd == cmd) { /* Found command */
|
|
|
|
scb->state |= aor;
|
|
|
|
/*
|
|
* Check if this command has firmware ownership. If
|
|
* yes, we cannot reset this command. Whenever f/w
|
|
* completes this command, we will return appropriate
|
|
* status from ISR.
|
|
*/
|
|
if( scb->state & SCB_ISSUED ) {
|
|
|
|
printk(KERN_WARNING
|
|
"megaraid: %s[%x], fw owner.\n",
|
|
(aor==SCB_ABORT) ? "ABORTING":"RESET",
|
|
scb->idx);
|
|
|
|
return FAILED;
|
|
}
|
|
else {
|
|
|
|
/*
|
|
* Not yet issued! Remove from the pending
|
|
* list
|
|
*/
|
|
printk(KERN_WARNING
|
|
"megaraid: %s-[%x], driver owner.\n",
|
|
(aor==SCB_ABORT) ? "ABORTING":"RESET",
|
|
scb->idx);
|
|
|
|
mega_free_scb(adapter, scb);
|
|
|
|
if( aor == SCB_ABORT ) {
|
|
cmd->result = (DID_ABORT << 16);
|
|
}
|
|
else {
|
|
cmd->result = (DID_RESET << 16);
|
|
}
|
|
|
|
list_add_tail(SCSI_LIST(cmd),
|
|
&adapter->completed_list);
|
|
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
}
|
|
|
|
return FAILED;
|
|
}
|
|
|
|
static inline int
|
|
make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)
|
|
{
|
|
*pdev = pci_alloc_dev(NULL);
|
|
|
|
if( *pdev == NULL ) return -1;
|
|
|
|
memcpy(*pdev, adapter->dev, sizeof(struct pci_dev));
|
|
|
|
if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) {
|
|
kfree(*pdev);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
free_local_pdev(struct pci_dev *pdev)
|
|
{
|
|
kfree(pdev);
|
|
}
|
|
|
|
/**
|
|
* mega_allocate_inquiry()
|
|
* @dma_handle - handle returned for dma address
|
|
* @pdev - handle to pci device
|
|
*
|
|
* allocates memory for inquiry structure
|
|
*/
|
|
static inline void *
|
|
mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev)
|
|
{
|
|
return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle);
|
|
}
|
|
|
|
|
|
static inline void
|
|
mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev)
|
|
{
|
|
pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle);
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
/* Following code handles /proc fs */
|
|
|
|
/**
|
|
* proc_show_config()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display configuration information about the controller.
|
|
*/
|
|
static int
|
|
proc_show_config(struct seq_file *m, void *v)
|
|
{
|
|
|
|
adapter_t *adapter = m->private;
|
|
|
|
seq_puts(m, MEGARAID_VERSION);
|
|
if(adapter->product_info.product_name[0])
|
|
seq_printf(m, "%s\n", adapter->product_info.product_name);
|
|
|
|
seq_puts(m, "Controller Type: ");
|
|
|
|
if( adapter->flag & BOARD_MEMMAP )
|
|
seq_puts(m, "438/466/467/471/493/518/520/531/532\n");
|
|
else
|
|
seq_puts(m, "418/428/434\n");
|
|
|
|
if(adapter->flag & BOARD_40LD)
|
|
seq_puts(m, "Controller Supports 40 Logical Drives\n");
|
|
|
|
if(adapter->flag & BOARD_64BIT)
|
|
seq_puts(m, "Controller capable of 64-bit memory addressing\n");
|
|
if( adapter->has_64bit_addr )
|
|
seq_puts(m, "Controller using 64-bit memory addressing\n");
|
|
else
|
|
seq_puts(m, "Controller is not using 64-bit memory addressing\n");
|
|
|
|
seq_printf(m, "Base = %08lx, Irq = %d, ",
|
|
adapter->base, adapter->host->irq);
|
|
|
|
seq_printf(m, "Logical Drives = %d, Channels = %d\n",
|
|
adapter->numldrv, adapter->product_info.nchannels);
|
|
|
|
seq_printf(m, "Version =%s:%s, DRAM = %dMb\n",
|
|
adapter->fw_version, adapter->bios_version,
|
|
adapter->product_info.dram_size);
|
|
|
|
seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
|
|
adapter->product_info.max_commands, adapter->max_cmds);
|
|
|
|
seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb);
|
|
seq_printf(m, "support_random_del = %d\n", adapter->support_random_del);
|
|
seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled);
|
|
seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv);
|
|
seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled);
|
|
seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch);
|
|
seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt);
|
|
seq_printf(m, "quiescent = %d\n",
|
|
atomic_read(&adapter->quiescent));
|
|
seq_printf(m, "has_cluster = %d\n", adapter->has_cluster);
|
|
|
|
seq_puts(m, "\nModule Parameters:\n");
|
|
seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun);
|
|
seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* proc_show_stat()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display statistical information about the I/O activity.
|
|
*/
|
|
static int
|
|
proc_show_stat(struct seq_file *m, void *v)
|
|
{
|
|
adapter_t *adapter = m->private;
|
|
#if MEGA_HAVE_STATS
|
|
int i;
|
|
#endif
|
|
|
|
seq_puts(m, "Statistical Information for this controller\n");
|
|
seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds));
|
|
#if MEGA_HAVE_STATS
|
|
for(i = 0; i < adapter->numldrv; i++) {
|
|
seq_printf(m, "Logical Drive %d:\n", i);
|
|
seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n",
|
|
adapter->nreads[i], adapter->nwrites[i]);
|
|
seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n",
|
|
adapter->nreadblocks[i], adapter->nwriteblocks[i]);
|
|
seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n",
|
|
adapter->rd_errors[i], adapter->wr_errors[i]);
|
|
}
|
|
#else
|
|
seq_puts(m, "IO and error counters not compiled in driver.\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_mbox()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display mailbox information for the last command issued. This information
|
|
* is good for debugging.
|
|
*/
|
|
static int
|
|
proc_show_mbox(struct seq_file *m, void *v)
|
|
{
|
|
adapter_t *adapter = m->private;
|
|
volatile mbox_t *mbox = adapter->mbox;
|
|
|
|
seq_puts(m, "Contents of Mail Box Structure\n");
|
|
seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd);
|
|
seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid);
|
|
seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors);
|
|
seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba);
|
|
seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr);
|
|
seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv);
|
|
seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements);
|
|
seq_printf(m, " Busy = %01x\n", mbox->m_in.busy);
|
|
seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_rebuild_rate()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display current rebuild rate
|
|
*/
|
|
static int
|
|
proc_show_rebuild_rate(struct seq_file *m, void *v)
|
|
{
|
|
adapter_t *adapter = m->private;
|
|
dma_addr_t dma_handle;
|
|
caddr_t inquiry;
|
|
struct pci_dev *pdev;
|
|
|
|
if( make_local_pdev(adapter, &pdev) != 0 )
|
|
return 0;
|
|
|
|
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
|
|
goto free_pdev;
|
|
|
|
if( mega_adapinq(adapter, dma_handle) != 0 ) {
|
|
seq_puts(m, "Adapter inquiry failed.\n");
|
|
printk(KERN_WARNING "megaraid: inquiry failed.\n");
|
|
goto free_inquiry;
|
|
}
|
|
|
|
if( adapter->flag & BOARD_40LD )
|
|
seq_printf(m, "Rebuild Rate: [%d%%]\n",
|
|
((mega_inquiry3 *)inquiry)->rebuild_rate);
|
|
else
|
|
seq_printf(m, "Rebuild Rate: [%d%%]\n",
|
|
((mraid_ext_inquiry *)
|
|
inquiry)->raid_inq.adapter_info.rebuild_rate);
|
|
|
|
free_inquiry:
|
|
mega_free_inquiry(inquiry, dma_handle, pdev);
|
|
free_pdev:
|
|
free_local_pdev(pdev);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_battery()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display information about the battery module on the controller.
|
|
*/
|
|
static int
|
|
proc_show_battery(struct seq_file *m, void *v)
|
|
{
|
|
adapter_t *adapter = m->private;
|
|
dma_addr_t dma_handle;
|
|
caddr_t inquiry;
|
|
struct pci_dev *pdev;
|
|
u8 battery_status;
|
|
|
|
if( make_local_pdev(adapter, &pdev) != 0 )
|
|
return 0;
|
|
|
|
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
|
|
goto free_pdev;
|
|
|
|
if( mega_adapinq(adapter, dma_handle) != 0 ) {
|
|
seq_printf(m, "Adapter inquiry failed.\n");
|
|
printk(KERN_WARNING "megaraid: inquiry failed.\n");
|
|
goto free_inquiry;
|
|
}
|
|
|
|
if( adapter->flag & BOARD_40LD ) {
|
|
battery_status = ((mega_inquiry3 *)inquiry)->battery_status;
|
|
}
|
|
else {
|
|
battery_status = ((mraid_ext_inquiry *)inquiry)->
|
|
raid_inq.adapter_info.battery_status;
|
|
}
|
|
|
|
/*
|
|
* Decode the battery status
|
|
*/
|
|
seq_printf(m, "Battery Status:[%d]", battery_status);
|
|
|
|
if(battery_status == MEGA_BATT_CHARGE_DONE)
|
|
seq_puts(m, " Charge Done");
|
|
|
|
if(battery_status & MEGA_BATT_MODULE_MISSING)
|
|
seq_puts(m, " Module Missing");
|
|
|
|
if(battery_status & MEGA_BATT_LOW_VOLTAGE)
|
|
seq_puts(m, " Low Voltage");
|
|
|
|
if(battery_status & MEGA_BATT_TEMP_HIGH)
|
|
seq_puts(m, " Temperature High");
|
|
|
|
if(battery_status & MEGA_BATT_PACK_MISSING)
|
|
seq_puts(m, " Pack Missing");
|
|
|
|
if(battery_status & MEGA_BATT_CHARGE_INPROG)
|
|
seq_puts(m, " Charge In-progress");
|
|
|
|
if(battery_status & MEGA_BATT_CHARGE_FAIL)
|
|
seq_puts(m, " Charge Fail");
|
|
|
|
if(battery_status & MEGA_BATT_CYCLES_EXCEEDED)
|
|
seq_puts(m, " Cycles Exceeded");
|
|
|
|
seq_putc(m, '\n');
|
|
|
|
free_inquiry:
|
|
mega_free_inquiry(inquiry, dma_handle, pdev);
|
|
free_pdev:
|
|
free_local_pdev(pdev);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Display scsi inquiry
|
|
*/
|
|
static void
|
|
mega_print_inquiry(struct seq_file *m, char *scsi_inq)
|
|
{
|
|
int i;
|
|
|
|
seq_puts(m, " Vendor: ");
|
|
seq_write(m, scsi_inq + 8, 8);
|
|
seq_puts(m, " Model: ");
|
|
seq_write(m, scsi_inq + 16, 16);
|
|
seq_puts(m, " Rev: ");
|
|
seq_write(m, scsi_inq + 32, 4);
|
|
seq_putc(m, '\n');
|
|
|
|
i = scsi_inq[0] & 0x1f;
|
|
seq_printf(m, " Type: %s ", scsi_device_type(i));
|
|
|
|
seq_printf(m, " ANSI SCSI revision: %02x",
|
|
scsi_inq[2] & 0x07);
|
|
|
|
if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 )
|
|
seq_puts(m, " CCS\n");
|
|
else
|
|
seq_putc(m, '\n');
|
|
}
|
|
|
|
/**
|
|
* proc_show_pdrv()
|
|
* @m - Synthetic file construction data
|
|
* @page - buffer to write the data in
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Display information about the physical drives.
|
|
*/
|
|
static int
|
|
proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel)
|
|
{
|
|
dma_addr_t dma_handle;
|
|
char *scsi_inq;
|
|
dma_addr_t scsi_inq_dma_handle;
|
|
caddr_t inquiry;
|
|
struct pci_dev *pdev;
|
|
u8 *pdrv_state;
|
|
u8 state;
|
|
int tgt;
|
|
int max_channels;
|
|
int i;
|
|
|
|
if( make_local_pdev(adapter, &pdev) != 0 )
|
|
return 0;
|
|
|
|
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
|
|
goto free_pdev;
|
|
|
|
if( mega_adapinq(adapter, dma_handle) != 0 ) {
|
|
seq_puts(m, "Adapter inquiry failed.\n");
|
|
printk(KERN_WARNING "megaraid: inquiry failed.\n");
|
|
goto free_inquiry;
|
|
}
|
|
|
|
|
|
scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle);
|
|
if( scsi_inq == NULL ) {
|
|
seq_puts(m, "memory not available for scsi inq.\n");
|
|
goto free_inquiry;
|
|
}
|
|
|
|
if( adapter->flag & BOARD_40LD ) {
|
|
pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state;
|
|
}
|
|
else {
|
|
pdrv_state = ((mraid_ext_inquiry *)inquiry)->
|
|
raid_inq.pdrv_info.pdrv_state;
|
|
}
|
|
|
|
max_channels = adapter->product_info.nchannels;
|
|
|
|
if( channel >= max_channels ) {
|
|
goto free_pci;
|
|
}
|
|
|
|
for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) {
|
|
|
|
i = channel*16 + tgt;
|
|
|
|
state = *(pdrv_state + i);
|
|
switch( state & 0x0F ) {
|
|
case PDRV_ONLINE:
|
|
seq_printf(m, "Channel:%2d Id:%2d State: Online",
|
|
channel, tgt);
|
|
break;
|
|
|
|
case PDRV_FAILED:
|
|
seq_printf(m, "Channel:%2d Id:%2d State: Failed",
|
|
channel, tgt);
|
|
break;
|
|
|
|
case PDRV_RBLD:
|
|
seq_printf(m, "Channel:%2d Id:%2d State: Rebuild",
|
|
channel, tgt);
|
|
break;
|
|
|
|
case PDRV_HOTSPARE:
|
|
seq_printf(m, "Channel:%2d Id:%2d State: Hot spare",
|
|
channel, tgt);
|
|
break;
|
|
|
|
default:
|
|
seq_printf(m, "Channel:%2d Id:%2d State: Un-configured",
|
|
channel, tgt);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* This interface displays inquiries for disk drives
|
|
* only. Inquries for logical drives and non-disk
|
|
* devices are available through /proc/scsi/scsi
|
|
*/
|
|
memset(scsi_inq, 0, 256);
|
|
if( mega_internal_dev_inquiry(adapter, channel, tgt,
|
|
scsi_inq_dma_handle) ||
|
|
(scsi_inq[0] & 0x1F) != TYPE_DISK ) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Check for overflow. We print less than 240
|
|
* characters for inquiry
|
|
*/
|
|
seq_puts(m, ".\n");
|
|
mega_print_inquiry(m, scsi_inq);
|
|
}
|
|
|
|
free_pci:
|
|
pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle);
|
|
free_inquiry:
|
|
mega_free_inquiry(inquiry, dma_handle, pdev);
|
|
free_pdev:
|
|
free_local_pdev(pdev);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* proc_show_pdrv_ch0()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display information about the physical drives on physical channel 0.
|
|
*/
|
|
static int
|
|
proc_show_pdrv_ch0(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_pdrv(m, m->private, 0);
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_pdrv_ch1()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display information about the physical drives on physical channel 1.
|
|
*/
|
|
static int
|
|
proc_show_pdrv_ch1(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_pdrv(m, m->private, 1);
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_pdrv_ch2()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display information about the physical drives on physical channel 2.
|
|
*/
|
|
static int
|
|
proc_show_pdrv_ch2(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_pdrv(m, m->private, 2);
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_pdrv_ch3()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display information about the physical drives on physical channel 3.
|
|
*/
|
|
static int
|
|
proc_show_pdrv_ch3(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_pdrv(m, m->private, 3);
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_rdrv()
|
|
* @m - Synthetic file construction data
|
|
* @adapter - pointer to our soft state
|
|
* @start - starting logical drive to display
|
|
* @end - ending logical drive to display
|
|
*
|
|
* We do not print the inquiry information since its already available through
|
|
* /proc/scsi/scsi interface
|
|
*/
|
|
static int
|
|
proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end )
|
|
{
|
|
dma_addr_t dma_handle;
|
|
logdrv_param *lparam;
|
|
megacmd_t mc;
|
|
char *disk_array;
|
|
dma_addr_t disk_array_dma_handle;
|
|
caddr_t inquiry;
|
|
struct pci_dev *pdev;
|
|
u8 *rdrv_state;
|
|
int num_ldrv;
|
|
u32 array_sz;
|
|
int i;
|
|
|
|
if( make_local_pdev(adapter, &pdev) != 0 )
|
|
return 0;
|
|
|
|
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
|
|
goto free_pdev;
|
|
|
|
if( mega_adapinq(adapter, dma_handle) != 0 ) {
|
|
seq_puts(m, "Adapter inquiry failed.\n");
|
|
printk(KERN_WARNING "megaraid: inquiry failed.\n");
|
|
goto free_inquiry;
|
|
}
|
|
|
|
memset(&mc, 0, sizeof(megacmd_t));
|
|
|
|
if( adapter->flag & BOARD_40LD ) {
|
|
array_sz = sizeof(disk_array_40ld);
|
|
|
|
rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state;
|
|
|
|
num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv;
|
|
}
|
|
else {
|
|
array_sz = sizeof(disk_array_8ld);
|
|
|
|
rdrv_state = ((mraid_ext_inquiry *)inquiry)->
|
|
raid_inq.logdrv_info.ldrv_state;
|
|
|
|
num_ldrv = ((mraid_ext_inquiry *)inquiry)->
|
|
raid_inq.logdrv_info.num_ldrv;
|
|
}
|
|
|
|
disk_array = pci_alloc_consistent(pdev, array_sz,
|
|
&disk_array_dma_handle);
|
|
|
|
if( disk_array == NULL ) {
|
|
seq_puts(m, "memory not available.\n");
|
|
goto free_inquiry;
|
|
}
|
|
|
|
mc.xferaddr = (u32)disk_array_dma_handle;
|
|
|
|
if( adapter->flag & BOARD_40LD ) {
|
|
mc.cmd = FC_NEW_CONFIG;
|
|
mc.opcode = OP_DCMD_READ_CONFIG;
|
|
|
|
if( mega_internal_command(adapter, &mc, NULL) ) {
|
|
seq_puts(m, "40LD read config failed.\n");
|
|
goto free_pci;
|
|
}
|
|
|
|
}
|
|
else {
|
|
mc.cmd = NEW_READ_CONFIG_8LD;
|
|
|
|
if( mega_internal_command(adapter, &mc, NULL) ) {
|
|
mc.cmd = READ_CONFIG_8LD;
|
|
if( mega_internal_command(adapter, &mc, NULL) ) {
|
|
seq_puts(m, "8LD read config failed.\n");
|
|
goto free_pci;
|
|
}
|
|
}
|
|
}
|
|
|
|
for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) {
|
|
|
|
if( adapter->flag & BOARD_40LD ) {
|
|
lparam =
|
|
&((disk_array_40ld *)disk_array)->ldrv[i].lparam;
|
|
}
|
|
else {
|
|
lparam =
|
|
&((disk_array_8ld *)disk_array)->ldrv[i].lparam;
|
|
}
|
|
|
|
/*
|
|
* Check for overflow. We print less than 240 characters for
|
|
* information about each logical drive.
|
|
*/
|
|
seq_printf(m, "Logical drive:%2d:, ", i);
|
|
|
|
switch( rdrv_state[i] & 0x0F ) {
|
|
case RDRV_OFFLINE:
|
|
seq_puts(m, "state: offline");
|
|
break;
|
|
case RDRV_DEGRADED:
|
|
seq_puts(m, "state: degraded");
|
|
break;
|
|
case RDRV_OPTIMAL:
|
|
seq_puts(m, "state: optimal");
|
|
break;
|
|
case RDRV_DELETED:
|
|
seq_puts(m, "state: deleted");
|
|
break;
|
|
default:
|
|
seq_puts(m, "state: unknown");
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Check if check consistency or initialization is going on
|
|
* for this logical drive.
|
|
*/
|
|
if( (rdrv_state[i] & 0xF0) == 0x20 )
|
|
seq_puts(m, ", check-consistency in progress");
|
|
else if( (rdrv_state[i] & 0xF0) == 0x10 )
|
|
seq_puts(m, ", initialization in progress");
|
|
|
|
seq_putc(m, '\n');
|
|
|
|
seq_printf(m, "Span depth:%3d, ", lparam->span_depth);
|
|
seq_printf(m, "RAID level:%3d, ", lparam->level);
|
|
seq_printf(m, "Stripe size:%3d, ",
|
|
lparam->stripe_sz ? lparam->stripe_sz/2: 128);
|
|
seq_printf(m, "Row size:%3d\n", lparam->row_size);
|
|
|
|
seq_puts(m, "Read Policy: ");
|
|
switch(lparam->read_ahead) {
|
|
case NO_READ_AHEAD:
|
|
seq_puts(m, "No read ahead, ");
|
|
break;
|
|
case READ_AHEAD:
|
|
seq_puts(m, "Read ahead, ");
|
|
break;
|
|
case ADAP_READ_AHEAD:
|
|
seq_puts(m, "Adaptive, ");
|
|
break;
|
|
|
|
}
|
|
|
|
seq_puts(m, "Write Policy: ");
|
|
switch(lparam->write_mode) {
|
|
case WRMODE_WRITE_THRU:
|
|
seq_puts(m, "Write thru, ");
|
|
break;
|
|
case WRMODE_WRITE_BACK:
|
|
seq_puts(m, "Write back, ");
|
|
break;
|
|
}
|
|
|
|
seq_puts(m, "Cache Policy: ");
|
|
switch(lparam->direct_io) {
|
|
case CACHED_IO:
|
|
seq_puts(m, "Cached IO\n\n");
|
|
break;
|
|
case DIRECT_IO:
|
|
seq_puts(m, "Direct IO\n\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
free_pci:
|
|
pci_free_consistent(pdev, array_sz, disk_array,
|
|
disk_array_dma_handle);
|
|
free_inquiry:
|
|
mega_free_inquiry(inquiry, dma_handle, pdev);
|
|
free_pdev:
|
|
free_local_pdev(pdev);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* proc_show_rdrv_10()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display real time information about the logical drives 0 through 9.
|
|
*/
|
|
static int
|
|
proc_show_rdrv_10(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_rdrv(m, m->private, 0, 9);
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_rdrv_20()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display real time information about the logical drives 0 through 9.
|
|
*/
|
|
static int
|
|
proc_show_rdrv_20(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_rdrv(m, m->private, 10, 19);
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_rdrv_30()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display real time information about the logical drives 0 through 9.
|
|
*/
|
|
static int
|
|
proc_show_rdrv_30(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_rdrv(m, m->private, 20, 29);
|
|
}
|
|
|
|
|
|
/**
|
|
* proc_show_rdrv_40()
|
|
* @m - Synthetic file construction data
|
|
* @v - File iterator
|
|
*
|
|
* Display real time information about the logical drives 0 through 9.
|
|
*/
|
|
static int
|
|
proc_show_rdrv_40(struct seq_file *m, void *v)
|
|
{
|
|
return proc_show_rdrv(m, m->private, 30, 39);
|
|
}
|
|
|
|
|
|
/*
|
|
* seq_file wrappers for procfile show routines.
|
|
*/
|
|
static int mega_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
adapter_t *adapter = proc_get_parent_data(inode);
|
|
int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
|
|
|
|
return single_open(file, show, adapter);
|
|
}
|
|
|
|
static const struct file_operations mega_proc_fops = {
|
|
.open = mega_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
/*
|
|
* Table of proc files we need to create.
|
|
*/
|
|
struct mega_proc_file {
|
|
const char *name;
|
|
unsigned short ptr_offset;
|
|
int (*show) (struct seq_file *m, void *v);
|
|
};
|
|
|
|
static const struct mega_proc_file mega_proc_files[] = {
|
|
{ "config", offsetof(adapter_t, proc_read), proc_show_config },
|
|
{ "stat", offsetof(adapter_t, proc_stat), proc_show_stat },
|
|
{ "mailbox", offsetof(adapter_t, proc_mbox), proc_show_mbox },
|
|
#if MEGA_HAVE_ENH_PROC
|
|
{ "rebuild-rate", offsetof(adapter_t, proc_rr), proc_show_rebuild_rate },
|
|
{ "battery-status", offsetof(adapter_t, proc_battery), proc_show_battery },
|
|
{ "diskdrives-ch0", offsetof(adapter_t, proc_pdrvstat[0]), proc_show_pdrv_ch0 },
|
|
{ "diskdrives-ch1", offsetof(adapter_t, proc_pdrvstat[1]), proc_show_pdrv_ch1 },
|
|
{ "diskdrives-ch2", offsetof(adapter_t, proc_pdrvstat[2]), proc_show_pdrv_ch2 },
|
|
{ "diskdrives-ch3", offsetof(adapter_t, proc_pdrvstat[3]), proc_show_pdrv_ch3 },
|
|
{ "raiddrives-0-9", offsetof(adapter_t, proc_rdrvstat[0]), proc_show_rdrv_10 },
|
|
{ "raiddrives-10-19", offsetof(adapter_t, proc_rdrvstat[1]), proc_show_rdrv_20 },
|
|
{ "raiddrives-20-29", offsetof(adapter_t, proc_rdrvstat[2]), proc_show_rdrv_30 },
|
|
{ "raiddrives-30-39", offsetof(adapter_t, proc_rdrvstat[3]), proc_show_rdrv_40 },
|
|
#endif
|
|
{ NULL }
|
|
};
|
|
|
|
/**
|
|
* mega_create_proc_entry()
|
|
* @index - index in soft state array
|
|
* @parent - parent node for this /proc entry
|
|
*
|
|
* Creates /proc entries for our controllers.
|
|
*/
|
|
static void
|
|
mega_create_proc_entry(int index, struct proc_dir_entry *parent)
|
|
{
|
|
const struct mega_proc_file *f;
|
|
adapter_t *adapter = hba_soft_state[index];
|
|
struct proc_dir_entry *dir, *de, **ppde;
|
|
u8 string[16];
|
|
|
|
sprintf(string, "hba%d", adapter->host->host_no);
|
|
|
|
dir = adapter->controller_proc_dir_entry =
|
|
proc_mkdir_data(string, 0, parent, adapter);
|
|
if(!dir) {
|
|
printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n");
|
|
return;
|
|
}
|
|
|
|
for (f = mega_proc_files; f->name; f++) {
|
|
de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops,
|
|
f->show);
|
|
if (!de) {
|
|
printk(KERN_WARNING "\nmegaraid: proc_create failed\n");
|
|
return;
|
|
}
|
|
|
|
ppde = (void *)adapter + f->ptr_offset;
|
|
*ppde = de;
|
|
}
|
|
}
|
|
|
|
#else
|
|
static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
|
|
/**
|
|
* megaraid_biosparam()
|
|
*
|
|
* Return the disk geometry for a particular disk
|
|
*/
|
|
static int
|
|
megaraid_biosparam(struct scsi_device *sdev, struct block_device *bdev,
|
|
sector_t capacity, int geom[])
|
|
{
|
|
adapter_t *adapter;
|
|
unsigned char *bh;
|
|
int heads;
|
|
int sectors;
|
|
int cylinders;
|
|
int rval;
|
|
|
|
/* Get pointer to host config structure */
|
|
adapter = (adapter_t *)sdev->host->hostdata;
|
|
|
|
if (IS_RAID_CH(adapter, sdev->channel)) {
|
|
/* Default heads (64) & sectors (32) */
|
|
heads = 64;
|
|
sectors = 32;
|
|
cylinders = (ulong)capacity / (heads * sectors);
|
|
|
|
/*
|
|
* Handle extended translation size for logical drives
|
|
* > 1Gb
|
|
*/
|
|
if ((ulong)capacity >= 0x200000) {
|
|
heads = 255;
|
|
sectors = 63;
|
|
cylinders = (ulong)capacity / (heads * sectors);
|
|
}
|
|
|
|
/* return result */
|
|
geom[0] = heads;
|
|
geom[1] = sectors;
|
|
geom[2] = cylinders;
|
|
}
|
|
else {
|
|
bh = scsi_bios_ptable(bdev);
|
|
|
|
if( bh ) {
|
|
rval = scsi_partsize(bh, capacity,
|
|
&geom[2], &geom[0], &geom[1]);
|
|
kfree(bh);
|
|
if( rval != -1 )
|
|
return rval;
|
|
}
|
|
|
|
printk(KERN_INFO
|
|
"megaraid: invalid partition on this disk on channel %d\n",
|
|
sdev->channel);
|
|
|
|
/* Default heads (64) & sectors (32) */
|
|
heads = 64;
|
|
sectors = 32;
|
|
cylinders = (ulong)capacity / (heads * sectors);
|
|
|
|
/* Handle extended translation size for logical drives > 1Gb */
|
|
if ((ulong)capacity >= 0x200000) {
|
|
heads = 255;
|
|
sectors = 63;
|
|
cylinders = (ulong)capacity / (heads * sectors);
|
|
}
|
|
|
|
/* return result */
|
|
geom[0] = heads;
|
|
geom[1] = sectors;
|
|
geom[2] = cylinders;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* mega_init_scb()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Allocate memory for the various pointers in the scb structures:
|
|
* scatter-gather list pointer, passthru and extended passthru structure
|
|
* pointers.
|
|
*/
|
|
static int
|
|
mega_init_scb(adapter_t *adapter)
|
|
{
|
|
scb_t *scb;
|
|
int i;
|
|
|
|
for( i = 0; i < adapter->max_cmds; i++ ) {
|
|
|
|
scb = &adapter->scb_list[i];
|
|
|
|
scb->sgl64 = NULL;
|
|
scb->sgl = NULL;
|
|
scb->pthru = NULL;
|
|
scb->epthru = NULL;
|
|
}
|
|
|
|
for( i = 0; i < adapter->max_cmds; i++ ) {
|
|
|
|
scb = &adapter->scb_list[i];
|
|
|
|
scb->idx = i;
|
|
|
|
scb->sgl64 = pci_alloc_consistent(adapter->dev,
|
|
sizeof(mega_sgl64) * adapter->sglen,
|
|
&scb->sgl_dma_addr);
|
|
|
|
scb->sgl = (mega_sglist *)scb->sgl64;
|
|
|
|
if( !scb->sgl ) {
|
|
printk(KERN_WARNING "RAID: Can't allocate sglist.\n");
|
|
mega_free_sgl(adapter);
|
|
return -1;
|
|
}
|
|
|
|
scb->pthru = pci_alloc_consistent(adapter->dev,
|
|
sizeof(mega_passthru),
|
|
&scb->pthru_dma_addr);
|
|
|
|
if( !scb->pthru ) {
|
|
printk(KERN_WARNING "RAID: Can't allocate passthru.\n");
|
|
mega_free_sgl(adapter);
|
|
return -1;
|
|
}
|
|
|
|
scb->epthru = pci_alloc_consistent(adapter->dev,
|
|
sizeof(mega_ext_passthru),
|
|
&scb->epthru_dma_addr);
|
|
|
|
if( !scb->epthru ) {
|
|
printk(KERN_WARNING
|
|
"Can't allocate extended passthru.\n");
|
|
mega_free_sgl(adapter);
|
|
return -1;
|
|
}
|
|
|
|
|
|
scb->dma_type = MEGA_DMA_TYPE_NONE;
|
|
|
|
/*
|
|
* Link to free list
|
|
* lock not required since we are loading the driver, so no
|
|
* commands possible right now.
|
|
*/
|
|
scb->state = SCB_FREE;
|
|
scb->cmd = NULL;
|
|
list_add(&scb->list, &adapter->free_list);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* megadev_open()
|
|
* @inode - unused
|
|
* @filep - unused
|
|
*
|
|
* Routines for the character/ioctl interface to the driver. Find out if this
|
|
* is a valid open.
|
|
*/
|
|
static int
|
|
megadev_open (struct inode *inode, struct file *filep)
|
|
{
|
|
/*
|
|
* Only allow superuser to access private ioctl interface
|
|
*/
|
|
if( !capable(CAP_SYS_ADMIN) ) return -EACCES;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* megadev_ioctl()
|
|
* @inode - Our device inode
|
|
* @filep - unused
|
|
* @cmd - ioctl command
|
|
* @arg - user buffer
|
|
*
|
|
* ioctl entry point for our private ioctl interface. We move the data in from
|
|
* the user space, prepare the command (if necessary, convert the old MIMD
|
|
* ioctl to new ioctl command), and issue a synchronous command to the
|
|
* controller.
|
|
*/
|
|
static int
|
|
megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
|
|
{
|
|
adapter_t *adapter;
|
|
nitioctl_t uioc;
|
|
int adapno;
|
|
int rval;
|
|
mega_passthru __user *upthru; /* user address for passthru */
|
|
mega_passthru *pthru; /* copy user passthru here */
|
|
dma_addr_t pthru_dma_hndl;
|
|
void *data = NULL; /* data to be transferred */
|
|
dma_addr_t data_dma_hndl; /* dma handle for data xfer area */
|
|
megacmd_t mc;
|
|
megastat_t __user *ustats;
|
|
int num_ldrv;
|
|
u32 uxferaddr = 0;
|
|
struct pci_dev *pdev;
|
|
|
|
ustats = NULL; /* avoid compilation warnings */
|
|
num_ldrv = 0;
|
|
|
|
/*
|
|
* Make sure only USCSICMD are issued through this interface.
|
|
* MIMD application would still fire different command.
|
|
*/
|
|
if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* Check and convert a possible MIMD command to NIT command.
|
|
* mega_m_to_n() copies the data from the user space, so we do not
|
|
* have to do it here.
|
|
* NOTE: We will need some user address to copyout the data, therefore
|
|
* the inteface layer will also provide us with the required user
|
|
* addresses.
|
|
*/
|
|
memset(&uioc, 0, sizeof(nitioctl_t));
|
|
if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 )
|
|
return rval;
|
|
|
|
|
|
switch( uioc.opcode ) {
|
|
|
|
case GET_DRIVER_VER:
|
|
if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) )
|
|
return (-EFAULT);
|
|
|
|
break;
|
|
|
|
case GET_N_ADAP:
|
|
if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) )
|
|
return (-EFAULT);
|
|
|
|
/*
|
|
* Shucks. MIMD interface returns a positive value for number
|
|
* of adapters. TODO: Change it to return 0 when there is no
|
|
* applicatio using mimd interface.
|
|
*/
|
|
return hba_count;
|
|
|
|
case GET_ADAP_INFO:
|
|
|
|
/*
|
|
* Which adapter
|
|
*/
|
|
if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
|
|
return (-ENODEV);
|
|
|
|
if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno,
|
|
sizeof(struct mcontroller)) )
|
|
return (-EFAULT);
|
|
break;
|
|
|
|
#if MEGA_HAVE_STATS
|
|
|
|
case GET_STATS:
|
|
/*
|
|
* Which adapter
|
|
*/
|
|
if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
|
|
return (-ENODEV);
|
|
|
|
adapter = hba_soft_state[adapno];
|
|
|
|
ustats = uioc.uioc_uaddr;
|
|
|
|
if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) )
|
|
return (-EFAULT);
|
|
|
|
/*
|
|
* Check for the validity of the logical drive number
|
|
*/
|
|
if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL;
|
|
|
|
if( copy_to_user(ustats->nreads, adapter->nreads,
|
|
num_ldrv*sizeof(u32)) )
|
|
return -EFAULT;
|
|
|
|
if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks,
|
|
num_ldrv*sizeof(u32)) )
|
|
return -EFAULT;
|
|
|
|
if( copy_to_user(ustats->nwrites, adapter->nwrites,
|
|
num_ldrv*sizeof(u32)) )
|
|
return -EFAULT;
|
|
|
|
if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks,
|
|
num_ldrv*sizeof(u32)) )
|
|
return -EFAULT;
|
|
|
|
if( copy_to_user(ustats->rd_errors, adapter->rd_errors,
|
|
num_ldrv*sizeof(u32)) )
|
|
return -EFAULT;
|
|
|
|
if( copy_to_user(ustats->wr_errors, adapter->wr_errors,
|
|
num_ldrv*sizeof(u32)) )
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
|
|
#endif
|
|
case MBOX_CMD:
|
|
|
|
/*
|
|
* Which adapter
|
|
*/
|
|
if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
|
|
return (-ENODEV);
|
|
|
|
adapter = hba_soft_state[adapno];
|
|
|
|
/*
|
|
* Deletion of logical drive is a special case. The adapter
|
|
* should be quiescent before this command is issued.
|
|
*/
|
|
if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV &&
|
|
uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) {
|
|
|
|
/*
|
|
* Do we support this feature
|
|
*/
|
|
if( !adapter->support_random_del ) {
|
|
printk(KERN_WARNING "megaraid: logdrv ");
|
|
printk("delete on non-supporting F/W.\n");
|
|
|
|
return (-EINVAL);
|
|
}
|
|
|
|
rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] );
|
|
|
|
if( rval == 0 ) {
|
|
memset(&mc, 0, sizeof(megacmd_t));
|
|
|
|
mc.status = rval;
|
|
|
|
rval = mega_n_to_m((void __user *)arg, &mc);
|
|
}
|
|
|
|
return rval;
|
|
}
|
|
/*
|
|
* This interface only support the regular passthru commands.
|
|
* Reject extended passthru and 64-bit passthru
|
|
*/
|
|
if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 ||
|
|
uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) {
|
|
|
|
printk(KERN_WARNING "megaraid: rejected passthru.\n");
|
|
|
|
return (-EINVAL);
|
|
}
|
|
|
|
/*
|
|
* For all internal commands, the buffer must be allocated in
|
|
* <4GB address range
|
|
*/
|
|
if( make_local_pdev(adapter, &pdev) != 0 )
|
|
return -EIO;
|
|
|
|
/* Is it a passthru command or a DCMD */
|
|
if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) {
|
|
/* Passthru commands */
|
|
|
|
pthru = pci_alloc_consistent(pdev,
|
|
sizeof(mega_passthru),
|
|
&pthru_dma_hndl);
|
|
|
|
if( pthru == NULL ) {
|
|
free_local_pdev(pdev);
|
|
return (-ENOMEM);
|
|
}
|
|
|
|
/*
|
|
* The user passthru structure
|
|
*/
|
|
upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr;
|
|
|
|
/*
|
|
* Copy in the user passthru here.
|
|
*/
|
|
if( copy_from_user(pthru, upthru,
|
|
sizeof(mega_passthru)) ) {
|
|
|
|
pci_free_consistent(pdev,
|
|
sizeof(mega_passthru), pthru,
|
|
pthru_dma_hndl);
|
|
|
|
free_local_pdev(pdev);
|
|
|
|
return (-EFAULT);
|
|
}
|
|
|
|
/*
|
|
* Is there a data transfer
|
|
*/
|
|
if( pthru->dataxferlen ) {
|
|
data = pci_alloc_consistent(pdev,
|
|
pthru->dataxferlen,
|
|
&data_dma_hndl);
|
|
|
|
if( data == NULL ) {
|
|
pci_free_consistent(pdev,
|
|
sizeof(mega_passthru),
|
|
pthru,
|
|
pthru_dma_hndl);
|
|
|
|
free_local_pdev(pdev);
|
|
|
|
return (-ENOMEM);
|
|
}
|
|
|
|
/*
|
|
* Save the user address and point the kernel
|
|
* address at just allocated memory
|
|
*/
|
|
uxferaddr = pthru->dataxferaddr;
|
|
pthru->dataxferaddr = data_dma_hndl;
|
|
}
|
|
|
|
|
|
/*
|
|
* Is data coming down-stream
|
|
*/
|
|
if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) {
|
|
/*
|
|
* Get the user data
|
|
*/
|
|
if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
|
|
pthru->dataxferlen) ) {
|
|
rval = (-EFAULT);
|
|
goto freemem_and_return;
|
|
}
|
|
}
|
|
|
|
memset(&mc, 0, sizeof(megacmd_t));
|
|
|
|
mc.cmd = MEGA_MBOXCMD_PASSTHRU;
|
|
mc.xferaddr = (u32)pthru_dma_hndl;
|
|
|
|
/*
|
|
* Issue the command
|
|
*/
|
|
mega_internal_command(adapter, &mc, pthru);
|
|
|
|
rval = mega_n_to_m((void __user *)arg, &mc);
|
|
|
|
if( rval ) goto freemem_and_return;
|
|
|
|
|
|
/*
|
|
* Is data going up-stream
|
|
*/
|
|
if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) {
|
|
if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
|
|
pthru->dataxferlen) ) {
|
|
rval = (-EFAULT);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Send the request sense data also, irrespective of
|
|
* whether the user has asked for it or not.
|
|
*/
|
|
if (copy_to_user(upthru->reqsensearea,
|
|
pthru->reqsensearea, 14))
|
|
rval = -EFAULT;
|
|
|
|
freemem_and_return:
|
|
if( pthru->dataxferlen ) {
|
|
pci_free_consistent(pdev,
|
|
pthru->dataxferlen, data,
|
|
data_dma_hndl);
|
|
}
|
|
|
|
pci_free_consistent(pdev, sizeof(mega_passthru),
|
|
pthru, pthru_dma_hndl);
|
|
|
|
free_local_pdev(pdev);
|
|
|
|
return rval;
|
|
}
|
|
else {
|
|
/* DCMD commands */
|
|
|
|
/*
|
|
* Is there a data transfer
|
|
*/
|
|
if( uioc.xferlen ) {
|
|
data = pci_alloc_consistent(pdev,
|
|
uioc.xferlen, &data_dma_hndl);
|
|
|
|
if( data == NULL ) {
|
|
free_local_pdev(pdev);
|
|
return (-ENOMEM);
|
|
}
|
|
|
|
uxferaddr = MBOX(uioc)->xferaddr;
|
|
}
|
|
|
|
/*
|
|
* Is data coming down-stream
|
|
*/
|
|
if( uioc.xferlen && (uioc.flags & UIOC_WR) ) {
|
|
/*
|
|
* Get the user data
|
|
*/
|
|
if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
|
|
uioc.xferlen) ) {
|
|
|
|
pci_free_consistent(pdev,
|
|
uioc.xferlen,
|
|
data, data_dma_hndl);
|
|
|
|
free_local_pdev(pdev);
|
|
|
|
return (-EFAULT);
|
|
}
|
|
}
|
|
|
|
memcpy(&mc, MBOX(uioc), sizeof(megacmd_t));
|
|
|
|
mc.xferaddr = (u32)data_dma_hndl;
|
|
|
|
/*
|
|
* Issue the command
|
|
*/
|
|
mega_internal_command(adapter, &mc, NULL);
|
|
|
|
rval = mega_n_to_m((void __user *)arg, &mc);
|
|
|
|
if( rval ) {
|
|
if( uioc.xferlen ) {
|
|
pci_free_consistent(pdev,
|
|
uioc.xferlen, data,
|
|
data_dma_hndl);
|
|
}
|
|
|
|
free_local_pdev(pdev);
|
|
|
|
return rval;
|
|
}
|
|
|
|
/*
|
|
* Is data going up-stream
|
|
*/
|
|
if( uioc.xferlen && (uioc.flags & UIOC_RD) ) {
|
|
if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
|
|
uioc.xferlen) ) {
|
|
|
|
rval = (-EFAULT);
|
|
}
|
|
}
|
|
|
|
if( uioc.xferlen ) {
|
|
pci_free_consistent(pdev,
|
|
uioc.xferlen, data,
|
|
data_dma_hndl);
|
|
}
|
|
|
|
free_local_pdev(pdev);
|
|
|
|
return rval;
|
|
}
|
|
|
|
default:
|
|
return (-EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static long
|
|
megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
|
|
{
|
|
int ret;
|
|
|
|
mutex_lock(&megadev_mutex);
|
|
ret = megadev_ioctl(filep, cmd, arg);
|
|
mutex_unlock(&megadev_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* mega_m_to_n()
|
|
* @arg - user address
|
|
* @uioc - new ioctl structure
|
|
*
|
|
* A thin layer to convert older mimd interface ioctl structure to NIT ioctl
|
|
* structure
|
|
*
|
|
* Converts the older mimd ioctl structure to newer NIT structure
|
|
*/
|
|
static int
|
|
mega_m_to_n(void __user *arg, nitioctl_t *uioc)
|
|
{
|
|
struct uioctl_t uioc_mimd;
|
|
char signature[8] = {0};
|
|
u8 opcode;
|
|
u8 subopcode;
|
|
|
|
|
|
/*
|
|
* check is the application conforms to NIT. We do not have to do much
|
|
* in that case.
|
|
* We exploit the fact that the signature is stored in the very
|
|
* beginning of the structure.
|
|
*/
|
|
|
|
if( copy_from_user(signature, arg, 7) )
|
|
return (-EFAULT);
|
|
|
|
if( memcmp(signature, "MEGANIT", 7) == 0 ) {
|
|
|
|
/*
|
|
* NOTE NOTE: The nit ioctl is still under flux because of
|
|
* change of mailbox definition, in HPE. No applications yet
|
|
* use this interface and let's not have applications use this
|
|
* interface till the new specifitions are in place.
|
|
*/
|
|
return -EINVAL;
|
|
#if 0
|
|
if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) )
|
|
return (-EFAULT);
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Else assume we have mimd uioctl_t as arg. Convert to nitioctl_t
|
|
*
|
|
* Get the user ioctl structure
|
|
*/
|
|
if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) )
|
|
return (-EFAULT);
|
|
|
|
|
|
/*
|
|
* Get the opcode and subopcode for the commands
|
|
*/
|
|
opcode = uioc_mimd.ui.fcs.opcode;
|
|
subopcode = uioc_mimd.ui.fcs.subopcode;
|
|
|
|
switch (opcode) {
|
|
case 0x82:
|
|
|
|
switch (subopcode) {
|
|
|
|
case MEGAIOC_QDRVRVER: /* Query driver version */
|
|
uioc->opcode = GET_DRIVER_VER;
|
|
uioc->uioc_uaddr = uioc_mimd.data;
|
|
break;
|
|
|
|
case MEGAIOC_QNADAP: /* Get # of adapters */
|
|
uioc->opcode = GET_N_ADAP;
|
|
uioc->uioc_uaddr = uioc_mimd.data;
|
|
break;
|
|
|
|
case MEGAIOC_QADAPINFO: /* Get adapter information */
|
|
uioc->opcode = GET_ADAP_INFO;
|
|
uioc->adapno = uioc_mimd.ui.fcs.adapno;
|
|
uioc->uioc_uaddr = uioc_mimd.data;
|
|
break;
|
|
|
|
default:
|
|
return(-EINVAL);
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
case 0x81:
|
|
|
|
uioc->opcode = MBOX_CMD;
|
|
uioc->adapno = uioc_mimd.ui.fcs.adapno;
|
|
|
|
memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
|
|
|
|
uioc->xferlen = uioc_mimd.ui.fcs.length;
|
|
|
|
if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
|
|
if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
|
|
|
|
break;
|
|
|
|
case 0x80:
|
|
|
|
uioc->opcode = MBOX_CMD;
|
|
uioc->adapno = uioc_mimd.ui.fcs.adapno;
|
|
|
|
memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
|
|
|
|
/*
|
|
* Choose the xferlen bigger of input and output data
|
|
*/
|
|
uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ?
|
|
uioc_mimd.outlen : uioc_mimd.inlen;
|
|
|
|
if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
|
|
if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
|
|
|
|
break;
|
|
|
|
default:
|
|
return (-EINVAL);
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* mega_n_to_m()
|
|
* @arg - user address
|
|
* @mc - mailbox command
|
|
*
|
|
* Updates the status information to the application, depending on application
|
|
* conforms to older mimd ioctl interface or newer NIT ioctl interface
|
|
*/
|
|
static int
|
|
mega_n_to_m(void __user *arg, megacmd_t *mc)
|
|
{
|
|
nitioctl_t __user *uiocp;
|
|
megacmd_t __user *umc;
|
|
mega_passthru __user *upthru;
|
|
struct uioctl_t __user *uioc_mimd;
|
|
char signature[8] = {0};
|
|
|
|
/*
|
|
* check is the application conforms to NIT.
|
|
*/
|
|
if( copy_from_user(signature, arg, 7) )
|
|
return -EFAULT;
|
|
|
|
if( memcmp(signature, "MEGANIT", 7) == 0 ) {
|
|
|
|
uiocp = arg;
|
|
|
|
if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) )
|
|
return (-EFAULT);
|
|
|
|
if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
|
|
|
|
umc = MBOX_P(uiocp);
|
|
|
|
if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
|
|
return -EFAULT;
|
|
|
|
if( put_user(mc->status, (u8 __user *)&upthru->scsistatus))
|
|
return (-EFAULT);
|
|
}
|
|
}
|
|
else {
|
|
uioc_mimd = arg;
|
|
|
|
if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) )
|
|
return (-EFAULT);
|
|
|
|
if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
|
|
|
|
umc = (megacmd_t __user *)uioc_mimd->mbox;
|
|
|
|
if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
|
|
return (-EFAULT);
|
|
|
|
if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) )
|
|
return (-EFAULT);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* MEGARAID 'FW' commands.
|
|
*/
|
|
|
|
/**
|
|
* mega_is_bios_enabled()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* issue command to find out if the BIOS is enabled for this controller
|
|
*/
|
|
static int
|
|
mega_is_bios_enabled(adapter_t *adapter)
|
|
{
|
|
unsigned char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox;
|
|
int ret;
|
|
|
|
mbox = (mbox_t *)raw_mbox;
|
|
|
|
memset(&mbox->m_out, 0, sizeof(raw_mbox));
|
|
|
|
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
|
|
|
|
mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
|
|
|
|
raw_mbox[0] = IS_BIOS_ENABLED;
|
|
raw_mbox[2] = GET_BIOS;
|
|
|
|
|
|
ret = issue_scb_block(adapter, raw_mbox);
|
|
|
|
return *(char *)adapter->mega_buffer;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_enum_raid_scsi()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Find out what channels are RAID/SCSI. This information is used to
|
|
* differentiate the virtual channels and physical channels and to support
|
|
* ROMB feature and non-disk devices.
|
|
*/
|
|
static void
|
|
mega_enum_raid_scsi(adapter_t *adapter)
|
|
{
|
|
unsigned char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox;
|
|
int i;
|
|
|
|
mbox = (mbox_t *)raw_mbox;
|
|
|
|
memset(&mbox->m_out, 0, sizeof(raw_mbox));
|
|
|
|
/*
|
|
* issue command to find out what channels are raid/scsi
|
|
*/
|
|
raw_mbox[0] = CHNL_CLASS;
|
|
raw_mbox[2] = GET_CHNL_CLASS;
|
|
|
|
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
|
|
|
|
mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
|
|
|
|
/*
|
|
* Non-ROMB firmware fail this command, so all channels
|
|
* must be shown RAID
|
|
*/
|
|
adapter->mega_ch_class = 0xFF;
|
|
|
|
if(!issue_scb_block(adapter, raw_mbox)) {
|
|
adapter->mega_ch_class = *((char *)adapter->mega_buffer);
|
|
|
|
}
|
|
|
|
for( i = 0; i < adapter->product_info.nchannels; i++ ) {
|
|
if( (adapter->mega_ch_class >> i) & 0x01 ) {
|
|
printk(KERN_INFO "megaraid: channel[%d] is raid.\n",
|
|
i);
|
|
}
|
|
else {
|
|
printk(KERN_INFO "megaraid: channel[%d] is scsi.\n",
|
|
i);
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_get_boot_drv()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Find out which device is the boot device. Note, any logical drive or any
|
|
* phyical device (e.g., a CDROM) can be designated as a boot device.
|
|
*/
|
|
static void
|
|
mega_get_boot_drv(adapter_t *adapter)
|
|
{
|
|
struct private_bios_data *prv_bios_data;
|
|
unsigned char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox;
|
|
u16 cksum = 0;
|
|
u8 *cksum_p;
|
|
u8 boot_pdrv;
|
|
int i;
|
|
|
|
mbox = (mbox_t *)raw_mbox;
|
|
|
|
memset(&mbox->m_out, 0, sizeof(raw_mbox));
|
|
|
|
raw_mbox[0] = BIOS_PVT_DATA;
|
|
raw_mbox[2] = GET_BIOS_PVT_DATA;
|
|
|
|
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
|
|
|
|
mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
|
|
|
|
adapter->boot_ldrv_enabled = 0;
|
|
adapter->boot_ldrv = 0;
|
|
|
|
adapter->boot_pdrv_enabled = 0;
|
|
adapter->boot_pdrv_ch = 0;
|
|
adapter->boot_pdrv_tgt = 0;
|
|
|
|
if(issue_scb_block(adapter, raw_mbox) == 0) {
|
|
prv_bios_data =
|
|
(struct private_bios_data *)adapter->mega_buffer;
|
|
|
|
cksum = 0;
|
|
cksum_p = (char *)prv_bios_data;
|
|
for (i = 0; i < 14; i++ ) {
|
|
cksum += (u16)(*cksum_p++);
|
|
}
|
|
|
|
if (prv_bios_data->cksum == (u16)(0-cksum) ) {
|
|
|
|
/*
|
|
* If MSB is set, a physical drive is set as boot
|
|
* device
|
|
*/
|
|
if( prv_bios_data->boot_drv & 0x80 ) {
|
|
adapter->boot_pdrv_enabled = 1;
|
|
boot_pdrv = prv_bios_data->boot_drv & 0x7F;
|
|
adapter->boot_pdrv_ch = boot_pdrv / 16;
|
|
adapter->boot_pdrv_tgt = boot_pdrv % 16;
|
|
}
|
|
else {
|
|
adapter->boot_ldrv_enabled = 1;
|
|
adapter->boot_ldrv = prv_bios_data->boot_drv;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* mega_support_random_del()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Find out if this controller supports random deletion and addition of
|
|
* logical drives
|
|
*/
|
|
static int
|
|
mega_support_random_del(adapter_t *adapter)
|
|
{
|
|
unsigned char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox;
|
|
int rval;
|
|
|
|
mbox = (mbox_t *)raw_mbox;
|
|
|
|
memset(&mbox->m_out, 0, sizeof(raw_mbox));
|
|
|
|
/*
|
|
* issue command
|
|
*/
|
|
raw_mbox[0] = FC_DEL_LOGDRV;
|
|
raw_mbox[2] = OP_SUP_DEL_LOGDRV;
|
|
|
|
rval = issue_scb_block(adapter, raw_mbox);
|
|
|
|
return !rval;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_support_ext_cdb()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Find out if this firmware support cdblen > 10
|
|
*/
|
|
static int
|
|
mega_support_ext_cdb(adapter_t *adapter)
|
|
{
|
|
unsigned char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox;
|
|
int rval;
|
|
|
|
mbox = (mbox_t *)raw_mbox;
|
|
|
|
memset(&mbox->m_out, 0, sizeof(raw_mbox));
|
|
/*
|
|
* issue command to find out if controller supports extended CDBs.
|
|
*/
|
|
raw_mbox[0] = 0xA4;
|
|
raw_mbox[2] = 0x16;
|
|
|
|
rval = issue_scb_block(adapter, raw_mbox);
|
|
|
|
return !rval;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_del_logdrv()
|
|
* @adapter - pointer to our soft state
|
|
* @logdrv - logical drive to be deleted
|
|
*
|
|
* Delete the specified logical drive. It is the responsibility of the user
|
|
* app to let the OS know about this operation.
|
|
*/
|
|
static int
|
|
mega_del_logdrv(adapter_t *adapter, int logdrv)
|
|
{
|
|
unsigned long flags;
|
|
scb_t *scb;
|
|
int rval;
|
|
|
|
/*
|
|
* Stop sending commands to the controller, queue them internally.
|
|
* When deletion is complete, ISR will flush the queue.
|
|
*/
|
|
atomic_set(&adapter->quiescent, 1);
|
|
|
|
/*
|
|
* Wait till all the issued commands are complete and there are no
|
|
* commands in the pending queue
|
|
*/
|
|
while (atomic_read(&adapter->pend_cmds) > 0 ||
|
|
!list_empty(&adapter->pending_list))
|
|
msleep(1000); /* sleep for 1s */
|
|
|
|
rval = mega_do_del_logdrv(adapter, logdrv);
|
|
|
|
spin_lock_irqsave(&adapter->lock, flags);
|
|
|
|
/*
|
|
* If delete operation was successful, add 0x80 to the logical drive
|
|
* ids for commands in the pending queue.
|
|
*/
|
|
if (adapter->read_ldidmap) {
|
|
struct list_head *pos;
|
|
list_for_each(pos, &adapter->pending_list) {
|
|
scb = list_entry(pos, scb_t, list);
|
|
if (scb->pthru->logdrv < 0x80 )
|
|
scb->pthru->logdrv += 0x80;
|
|
}
|
|
}
|
|
|
|
atomic_set(&adapter->quiescent, 0);
|
|
|
|
mega_runpendq(adapter);
|
|
|
|
spin_unlock_irqrestore(&adapter->lock, flags);
|
|
|
|
return rval;
|
|
}
|
|
|
|
|
|
static int
|
|
mega_do_del_logdrv(adapter_t *adapter, int logdrv)
|
|
{
|
|
megacmd_t mc;
|
|
int rval;
|
|
|
|
memset( &mc, 0, sizeof(megacmd_t));
|
|
|
|
mc.cmd = FC_DEL_LOGDRV;
|
|
mc.opcode = OP_DEL_LOGDRV;
|
|
mc.subopcode = logdrv;
|
|
|
|
rval = mega_internal_command(adapter, &mc, NULL);
|
|
|
|
/* log this event */
|
|
if(rval) {
|
|
printk(KERN_WARNING "megaraid: Delete LD-%d failed.", logdrv);
|
|
return rval;
|
|
}
|
|
|
|
/*
|
|
* After deleting first logical drive, the logical drives must be
|
|
* addressed by adding 0x80 to the logical drive id.
|
|
*/
|
|
adapter->read_ldidmap = 1;
|
|
|
|
return rval;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_get_max_sgl()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Find out the maximum number of scatter-gather elements supported by this
|
|
* version of the firmware
|
|
*/
|
|
static void
|
|
mega_get_max_sgl(adapter_t *adapter)
|
|
{
|
|
unsigned char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox;
|
|
|
|
mbox = (mbox_t *)raw_mbox;
|
|
|
|
memset(mbox, 0, sizeof(raw_mbox));
|
|
|
|
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
|
|
|
|
mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
|
|
|
|
raw_mbox[0] = MAIN_MISC_OPCODE;
|
|
raw_mbox[2] = GET_MAX_SG_SUPPORT;
|
|
|
|
|
|
if( issue_scb_block(adapter, raw_mbox) ) {
|
|
/*
|
|
* f/w does not support this command. Choose the default value
|
|
*/
|
|
adapter->sglen = MIN_SGLIST;
|
|
}
|
|
else {
|
|
adapter->sglen = *((char *)adapter->mega_buffer);
|
|
|
|
/*
|
|
* Make sure this is not more than the resources we are
|
|
* planning to allocate
|
|
*/
|
|
if ( adapter->sglen > MAX_SGLIST )
|
|
adapter->sglen = MAX_SGLIST;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* mega_support_cluster()
|
|
* @adapter - pointer to our soft state
|
|
*
|
|
* Find out if this firmware support cluster calls.
|
|
*/
|
|
static int
|
|
mega_support_cluster(adapter_t *adapter)
|
|
{
|
|
unsigned char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox;
|
|
|
|
mbox = (mbox_t *)raw_mbox;
|
|
|
|
memset(mbox, 0, sizeof(raw_mbox));
|
|
|
|
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
|
|
|
|
mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
|
|
|
|
/*
|
|
* Try to get the initiator id. This command will succeed iff the
|
|
* clustering is available on this HBA.
|
|
*/
|
|
raw_mbox[0] = MEGA_GET_TARGET_ID;
|
|
|
|
if( issue_scb_block(adapter, raw_mbox) == 0 ) {
|
|
|
|
/*
|
|
* Cluster support available. Get the initiator target id.
|
|
* Tell our id to mid-layer too.
|
|
*/
|
|
adapter->this_id = *(u32 *)adapter->mega_buffer;
|
|
adapter->host->this_id = adapter->this_id;
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
/**
|
|
* mega_adapinq()
|
|
* @adapter - pointer to our soft state
|
|
* @dma_handle - DMA address of the buffer
|
|
*
|
|
* Issue internal commands while interrupts are available.
|
|
* We only issue direct mailbox commands from within the driver. ioctl()
|
|
* interface using these routines can issue passthru commands.
|
|
*/
|
|
static int
|
|
mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle)
|
|
{
|
|
megacmd_t mc;
|
|
|
|
memset(&mc, 0, sizeof(megacmd_t));
|
|
|
|
if( adapter->flag & BOARD_40LD ) {
|
|
mc.cmd = FC_NEW_CONFIG;
|
|
mc.opcode = NC_SUBOP_ENQUIRY3;
|
|
mc.subopcode = ENQ3_GET_SOLICITED_FULL;
|
|
}
|
|
else {
|
|
mc.cmd = MEGA_MBOXCMD_ADPEXTINQ;
|
|
}
|
|
|
|
mc.xferaddr = (u32)dma_handle;
|
|
|
|
if ( mega_internal_command(adapter, &mc, NULL) != 0 ) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/** mega_internal_dev_inquiry()
|
|
* @adapter - pointer to our soft state
|
|
* @ch - channel for this device
|
|
* @tgt - ID of this device
|
|
* @buf_dma_handle - DMA address of the buffer
|
|
*
|
|
* Issue the scsi inquiry for the specified device.
|
|
*/
|
|
static int
|
|
mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt,
|
|
dma_addr_t buf_dma_handle)
|
|
{
|
|
mega_passthru *pthru;
|
|
dma_addr_t pthru_dma_handle;
|
|
megacmd_t mc;
|
|
int rval;
|
|
struct pci_dev *pdev;
|
|
|
|
|
|
/*
|
|
* For all internal commands, the buffer must be allocated in <4GB
|
|
* address range
|
|
*/
|
|
if( make_local_pdev(adapter, &pdev) != 0 ) return -1;
|
|
|
|
pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru),
|
|
&pthru_dma_handle);
|
|
|
|
if( pthru == NULL ) {
|
|
free_local_pdev(pdev);
|
|
return -1;
|
|
}
|
|
|
|
pthru->timeout = 2;
|
|
pthru->ars = 1;
|
|
pthru->reqsenselen = 14;
|
|
pthru->islogical = 0;
|
|
|
|
pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch;
|
|
|
|
pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt;
|
|
|
|
pthru->cdblen = 6;
|
|
|
|
pthru->cdb[0] = INQUIRY;
|
|
pthru->cdb[1] = 0;
|
|
pthru->cdb[2] = 0;
|
|
pthru->cdb[3] = 0;
|
|
pthru->cdb[4] = 255;
|
|
pthru->cdb[5] = 0;
|
|
|
|
|
|
pthru->dataxferaddr = (u32)buf_dma_handle;
|
|
pthru->dataxferlen = 256;
|
|
|
|
memset(&mc, 0, sizeof(megacmd_t));
|
|
|
|
mc.cmd = MEGA_MBOXCMD_PASSTHRU;
|
|
mc.xferaddr = (u32)pthru_dma_handle;
|
|
|
|
rval = mega_internal_command(adapter, &mc, pthru);
|
|
|
|
pci_free_consistent(pdev, sizeof(mega_passthru), pthru,
|
|
pthru_dma_handle);
|
|
|
|
free_local_pdev(pdev);
|
|
|
|
return rval;
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* mega_internal_command()
|
|
* @adapter - pointer to our soft state
|
|
* @mc - the mailbox command
|
|
* @pthru - Passthru structure for DCDB commands
|
|
*
|
|
* Issue the internal commands in interrupt mode.
|
|
* The last argument is the address of the passthru structure if the command
|
|
* to be fired is a passthru command
|
|
*
|
|
* Note: parameter 'pthru' is null for non-passthru commands.
|
|
*/
|
|
static int
|
|
mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
|
|
{
|
|
unsigned long flags;
|
|
scb_t *scb;
|
|
int rval;
|
|
|
|
/*
|
|
* The internal commands share one command id and hence are
|
|
* serialized. This is so because we want to reserve maximum number of
|
|
* available command ids for the I/O commands.
|
|
*/
|
|
mutex_lock(&adapter->int_mtx);
|
|
|
|
scb = &adapter->int_scb;
|
|
memset(scb, 0, sizeof(scb_t));
|
|
|
|
scb->idx = CMDID_INT_CMDS;
|
|
scb->state |= SCB_ACTIVE | SCB_PENDQ;
|
|
|
|
memcpy(scb->raw_mbox, mc, sizeof(megacmd_t));
|
|
|
|
/*
|
|
* Is it a passthru command
|
|
*/
|
|
if (mc->cmd == MEGA_MBOXCMD_PASSTHRU)
|
|
scb->pthru = pthru;
|
|
|
|
spin_lock_irqsave(&adapter->lock, flags);
|
|
list_add_tail(&scb->list, &adapter->pending_list);
|
|
/*
|
|
* Check if the HBA is in quiescent state, e.g., during a
|
|
* delete logical drive opertion. If it is, don't run
|
|
* the pending_list.
|
|
*/
|
|
if (atomic_read(&adapter->quiescent) == 0)
|
|
mega_runpendq(adapter);
|
|
spin_unlock_irqrestore(&adapter->lock, flags);
|
|
|
|
wait_for_completion(&adapter->int_waitq);
|
|
|
|
mc->status = rval = adapter->int_status;
|
|
|
|
/*
|
|
* Print a debug message for all failed commands. Applications can use
|
|
* this information.
|
|
*/
|
|
if (rval && trace_level) {
|
|
printk("megaraid: cmd [%x, %x, %x] status:[%x]\n",
|
|
mc->cmd, mc->opcode, mc->subopcode, rval);
|
|
}
|
|
|
|
mutex_unlock(&adapter->int_mtx);
|
|
return rval;
|
|
}
|
|
|
|
static struct scsi_host_template megaraid_template = {
|
|
.module = THIS_MODULE,
|
|
.name = "MegaRAID",
|
|
.proc_name = "megaraid_legacy",
|
|
.info = megaraid_info,
|
|
.queuecommand = megaraid_queue,
|
|
.bios_param = megaraid_biosparam,
|
|
.max_sectors = MAX_SECTORS_PER_IO,
|
|
.can_queue = MAX_COMMANDS,
|
|
.this_id = DEFAULT_INITIATOR_ID,
|
|
.sg_tablesize = MAX_SGLIST,
|
|
.cmd_per_lun = DEF_CMD_PER_LUN,
|
|
.use_clustering = ENABLE_CLUSTERING,
|
|
.eh_abort_handler = megaraid_abort,
|
|
.eh_device_reset_handler = megaraid_reset,
|
|
.eh_bus_reset_handler = megaraid_reset,
|
|
.eh_host_reset_handler = megaraid_reset,
|
|
.no_write_same = 1,
|
|
};
|
|
|
|
static int
|
|
megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
struct Scsi_Host *host;
|
|
adapter_t *adapter;
|
|
unsigned long mega_baseport, tbase, flag = 0;
|
|
u16 subsysid, subsysvid;
|
|
u8 pci_bus, pci_dev_func;
|
|
int irq, i, j;
|
|
int error = -ENODEV;
|
|
|
|
if (pci_enable_device(pdev))
|
|
goto out;
|
|
pci_set_master(pdev);
|
|
|
|
pci_bus = pdev->bus->number;
|
|
pci_dev_func = pdev->devfn;
|
|
|
|
/*
|
|
* The megaraid3 stuff reports the ID of the Intel part which is not
|
|
* remotely specific to the megaraid
|
|
*/
|
|
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
|
|
u16 magic;
|
|
/*
|
|
* Don't fall over the Compaq management cards using the same
|
|
* PCI identifier
|
|
*/
|
|
if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ &&
|
|
pdev->subsystem_device == 0xC000)
|
|
return -ENODEV;
|
|
/* Now check the magic signature byte */
|
|
pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic);
|
|
if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE)
|
|
return -ENODEV;
|
|
/* Ok it is probably a megaraid */
|
|
}
|
|
|
|
/*
|
|
* For these vendor and device ids, signature offsets are not
|
|
* valid and 64 bit is implicit
|
|
*/
|
|
if (id->driver_data & BOARD_64BIT)
|
|
flag |= BOARD_64BIT;
|
|
else {
|
|
u32 magic64;
|
|
|
|
pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64);
|
|
if (magic64 == HBA_SIGNATURE_64BIT)
|
|
flag |= BOARD_64BIT;
|
|
}
|
|
|
|
subsysvid = pdev->subsystem_vendor;
|
|
subsysid = pdev->subsystem_device;
|
|
|
|
printk(KERN_NOTICE "megaraid: found 0x%4.04x:0x%4.04x:bus %d:",
|
|
id->vendor, id->device, pci_bus);
|
|
|
|
printk("slot %d:func %d\n",
|
|
PCI_SLOT(pci_dev_func), PCI_FUNC(pci_dev_func));
|
|
|
|
/* Read the base port and IRQ from PCI */
|
|
mega_baseport = pci_resource_start(pdev, 0);
|
|
irq = pdev->irq;
|
|
|
|
tbase = mega_baseport;
|
|
if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) {
|
|
flag |= BOARD_MEMMAP;
|
|
|
|
if (!request_mem_region(mega_baseport, 128, "megaraid")) {
|
|
printk(KERN_WARNING "megaraid: mem region busy!\n");
|
|
goto out_disable_device;
|
|
}
|
|
|
|
mega_baseport = (unsigned long)ioremap(mega_baseport, 128);
|
|
if (!mega_baseport) {
|
|
printk(KERN_WARNING
|
|
"megaraid: could not map hba memory\n");
|
|
goto out_release_region;
|
|
}
|
|
} else {
|
|
flag |= BOARD_IOMAP;
|
|
mega_baseport += 0x10;
|
|
|
|
if (!request_region(mega_baseport, 16, "megaraid"))
|
|
goto out_disable_device;
|
|
}
|
|
|
|
/* Initialize SCSI Host structure */
|
|
host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t));
|
|
if (!host)
|
|
goto out_iounmap;
|
|
|
|
adapter = (adapter_t *)host->hostdata;
|
|
memset(adapter, 0, sizeof(adapter_t));
|
|
|
|
printk(KERN_NOTICE
|
|
"scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n",
|
|
host->host_no, mega_baseport, irq);
|
|
|
|
adapter->base = mega_baseport;
|
|
if (flag & BOARD_MEMMAP)
|
|
adapter->mmio_base = (void __iomem *) mega_baseport;
|
|
|
|
INIT_LIST_HEAD(&adapter->free_list);
|
|
INIT_LIST_HEAD(&adapter->pending_list);
|
|
INIT_LIST_HEAD(&adapter->completed_list);
|
|
|
|
adapter->flag = flag;
|
|
spin_lock_init(&adapter->lock);
|
|
|
|
host->cmd_per_lun = max_cmd_per_lun;
|
|
host->max_sectors = max_sectors_per_io;
|
|
|
|
adapter->dev = pdev;
|
|
adapter->host = host;
|
|
|
|
adapter->host->irq = irq;
|
|
|
|
if (flag & BOARD_MEMMAP)
|
|
adapter->host->base = tbase;
|
|
else {
|
|
adapter->host->io_port = tbase;
|
|
adapter->host->n_io_port = 16;
|
|
}
|
|
|
|
adapter->host->unique_id = (pci_bus << 8) | pci_dev_func;
|
|
|
|
/*
|
|
* Allocate buffer to issue internal commands.
|
|
*/
|
|
adapter->mega_buffer = pci_alloc_consistent(adapter->dev,
|
|
MEGA_BUFFER_SIZE, &adapter->buf_dma_handle);
|
|
if (!adapter->mega_buffer) {
|
|
printk(KERN_WARNING "megaraid: out of RAM.\n");
|
|
goto out_host_put;
|
|
}
|
|
|
|
adapter->scb_list = kmalloc(sizeof(scb_t) * MAX_COMMANDS, GFP_KERNEL);
|
|
if (!adapter->scb_list) {
|
|
printk(KERN_WARNING "megaraid: out of RAM.\n");
|
|
goto out_free_cmd_buffer;
|
|
}
|
|
|
|
if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ?
|
|
megaraid_isr_memmapped : megaraid_isr_iomapped,
|
|
IRQF_SHARED, "megaraid", adapter)) {
|
|
printk(KERN_WARNING
|
|
"megaraid: Couldn't register IRQ %d!\n", irq);
|
|
goto out_free_scb_list;
|
|
}
|
|
|
|
if (mega_setup_mailbox(adapter))
|
|
goto out_free_irq;
|
|
|
|
if (mega_query_adapter(adapter))
|
|
goto out_free_mbox;
|
|
|
|
/*
|
|
* Have checks for some buggy f/w
|
|
*/
|
|
if ((subsysid == 0x1111) && (subsysvid == 0x1111)) {
|
|
/*
|
|
* Which firmware
|
|
*/
|
|
if (!strcmp(adapter->fw_version, "3.00") ||
|
|
!strcmp(adapter->fw_version, "3.01")) {
|
|
|
|
printk( KERN_WARNING
|
|
"megaraid: Your card is a Dell PERC "
|
|
"2/SC RAID controller with "
|
|
"firmware\nmegaraid: 3.00 or 3.01. "
|
|
"This driver is known to have "
|
|
"corruption issues\nmegaraid: with "
|
|
"those firmware versions on this "
|
|
"specific card. In order\nmegaraid: "
|
|
"to protect your data, please upgrade "
|
|
"your firmware to version\nmegaraid: "
|
|
"3.10 or later, available from the "
|
|
"Dell Technical Support web\n"
|
|
"megaraid: site at\nhttp://support."
|
|
"dell.com/us/en/filelib/download/"
|
|
"index.asp?fileid=2940\n"
|
|
);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we have a HP 1M(0x60E7)/2M(0x60E8) controller with
|
|
* firmware H.01.07, H.01.08, and H.01.09 disable 64 bit
|
|
* support, since this firmware cannot handle 64 bit
|
|
* addressing
|
|
*/
|
|
if ((subsysvid == PCI_VENDOR_ID_HP) &&
|
|
((subsysid == 0x60E7) || (subsysid == 0x60E8))) {
|
|
/*
|
|
* which firmware
|
|
*/
|
|
if (!strcmp(adapter->fw_version, "H01.07") ||
|
|
!strcmp(adapter->fw_version, "H01.08") ||
|
|
!strcmp(adapter->fw_version, "H01.09") ) {
|
|
printk(KERN_WARNING
|
|
"megaraid: Firmware H.01.07, "
|
|
"H.01.08, and H.01.09 on 1M/2M "
|
|
"controllers\n"
|
|
"megaraid: do not support 64 bit "
|
|
"addressing.\nmegaraid: DISABLING "
|
|
"64 bit support.\n");
|
|
adapter->flag &= ~BOARD_64BIT;
|
|
}
|
|
}
|
|
|
|
if (mega_is_bios_enabled(adapter))
|
|
mega_hbas[hba_count].is_bios_enabled = 1;
|
|
mega_hbas[hba_count].hostdata_addr = adapter;
|
|
|
|
/*
|
|
* Find out which channel is raid and which is scsi. This is
|
|
* for ROMB support.
|
|
*/
|
|
mega_enum_raid_scsi(adapter);
|
|
|
|
/*
|
|
* Find out if a logical drive is set as the boot drive. If
|
|
* there is one, will make that as the first logical drive.
|
|
* ROMB: Do we have to boot from a physical drive. Then all
|
|
* the physical drives would appear before the logical disks.
|
|
* Else, all the physical drives would be exported to the mid
|
|
* layer after logical drives.
|
|
*/
|
|
mega_get_boot_drv(adapter);
|
|
|
|
if (adapter->boot_pdrv_enabled) {
|
|
j = adapter->product_info.nchannels;
|
|
for( i = 0; i < j; i++ )
|
|
adapter->logdrv_chan[i] = 0;
|
|
for( i = j; i < NVIRT_CHAN + j; i++ )
|
|
adapter->logdrv_chan[i] = 1;
|
|
} else {
|
|
for (i = 0; i < NVIRT_CHAN; i++)
|
|
adapter->logdrv_chan[i] = 1;
|
|
for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++)
|
|
adapter->logdrv_chan[i] = 0;
|
|
adapter->mega_ch_class <<= NVIRT_CHAN;
|
|
}
|
|
|
|
/*
|
|
* Do we support random deletion and addition of logical
|
|
* drives
|
|
*/
|
|
adapter->read_ldidmap = 0; /* set it after first logdrv
|
|
delete cmd */
|
|
adapter->support_random_del = mega_support_random_del(adapter);
|
|
|
|
/* Initialize SCBs */
|
|
if (mega_init_scb(adapter))
|
|
goto out_free_mbox;
|
|
|
|
/*
|
|
* Reset the pending commands counter
|
|
*/
|
|
atomic_set(&adapter->pend_cmds, 0);
|
|
|
|
/*
|
|
* Reset the adapter quiescent flag
|
|
*/
|
|
atomic_set(&adapter->quiescent, 0);
|
|
|
|
hba_soft_state[hba_count] = adapter;
|
|
|
|
/*
|
|
* Fill in the structure which needs to be passed back to the
|
|
* application when it does an ioctl() for controller related
|
|
* information.
|
|
*/
|
|
i = hba_count;
|
|
|
|
mcontroller[i].base = mega_baseport;
|
|
mcontroller[i].irq = irq;
|
|
mcontroller[i].numldrv = adapter->numldrv;
|
|
mcontroller[i].pcibus = pci_bus;
|
|
mcontroller[i].pcidev = id->device;
|
|
mcontroller[i].pcifun = PCI_FUNC (pci_dev_func);
|
|
mcontroller[i].pciid = -1;
|
|
mcontroller[i].pcivendor = id->vendor;
|
|
mcontroller[i].pcislot = PCI_SLOT(pci_dev_func);
|
|
mcontroller[i].uid = (pci_bus << 8) | pci_dev_func;
|
|
|
|
|
|
/* Set the Mode of addressing to 64 bit if we can */
|
|
if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) {
|
|
pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
adapter->has_64bit_addr = 1;
|
|
} else {
|
|
pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
adapter->has_64bit_addr = 0;
|
|
}
|
|
|
|
mutex_init(&adapter->int_mtx);
|
|
init_completion(&adapter->int_waitq);
|
|
|
|
adapter->this_id = DEFAULT_INITIATOR_ID;
|
|
adapter->host->this_id = DEFAULT_INITIATOR_ID;
|
|
|
|
#if MEGA_HAVE_CLUSTERING
|
|
/*
|
|
* Is cluster support enabled on this controller
|
|
* Note: In a cluster the HBAs ( the initiators ) will have
|
|
* different target IDs and we cannot assume it to be 7. Call
|
|
* to mega_support_cluster() will get the target ids also if
|
|
* the cluster support is available
|
|
*/
|
|
adapter->has_cluster = mega_support_cluster(adapter);
|
|
if (adapter->has_cluster) {
|
|
printk(KERN_NOTICE
|
|
"megaraid: Cluster driver, initiator id:%d\n",
|
|
adapter->this_id);
|
|
}
|
|
#endif
|
|
|
|
pci_set_drvdata(pdev, host);
|
|
|
|
mega_create_proc_entry(hba_count, mega_proc_dir_entry);
|
|
|
|
error = scsi_add_host(host, &pdev->dev);
|
|
if (error)
|
|
goto out_free_mbox;
|
|
|
|
scsi_scan_host(host);
|
|
hba_count++;
|
|
return 0;
|
|
|
|
out_free_mbox:
|
|
pci_free_consistent(adapter->dev, sizeof(mbox64_t),
|
|
adapter->una_mbox64, adapter->una_mbox64_dma);
|
|
out_free_irq:
|
|
free_irq(adapter->host->irq, adapter);
|
|
out_free_scb_list:
|
|
kfree(adapter->scb_list);
|
|
out_free_cmd_buffer:
|
|
pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE,
|
|
adapter->mega_buffer, adapter->buf_dma_handle);
|
|
out_host_put:
|
|
scsi_host_put(host);
|
|
out_iounmap:
|
|
if (flag & BOARD_MEMMAP)
|
|
iounmap((void *)mega_baseport);
|
|
out_release_region:
|
|
if (flag & BOARD_MEMMAP)
|
|
release_mem_region(tbase, 128);
|
|
else
|
|
release_region(mega_baseport, 16);
|
|
out_disable_device:
|
|
pci_disable_device(pdev);
|
|
out:
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
__megaraid_shutdown(adapter_t *adapter)
|
|
{
|
|
u_char raw_mbox[sizeof(struct mbox_out)];
|
|
mbox_t *mbox = (mbox_t *)raw_mbox;
|
|
int i;
|
|
|
|
/* Flush adapter cache */
|
|
memset(&mbox->m_out, 0, sizeof(raw_mbox));
|
|
raw_mbox[0] = FLUSH_ADAPTER;
|
|
|
|
free_irq(adapter->host->irq, adapter);
|
|
|
|
/* Issue a blocking (interrupts disabled) command to the card */
|
|
issue_scb_block(adapter, raw_mbox);
|
|
|
|
/* Flush disks cache */
|
|
memset(&mbox->m_out, 0, sizeof(raw_mbox));
|
|
raw_mbox[0] = FLUSH_SYSTEM;
|
|
|
|
/* Issue a blocking (interrupts disabled) command to the card */
|
|
issue_scb_block(adapter, raw_mbox);
|
|
|
|
if (atomic_read(&adapter->pend_cmds) > 0)
|
|
printk(KERN_WARNING "megaraid: pending commands!!\n");
|
|
|
|
/*
|
|
* Have a delibrate delay to make sure all the caches are
|
|
* actually flushed.
|
|
*/
|
|
for (i = 0; i <= 10; i++)
|
|
mdelay(1000);
|
|
}
|
|
|
|
static void
|
|
megaraid_remove_one(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
adapter_t *adapter = (adapter_t *)host->hostdata;
|
|
|
|
scsi_remove_host(host);
|
|
|
|
__megaraid_shutdown(adapter);
|
|
|
|
/* Free our resources */
|
|
if (adapter->flag & BOARD_MEMMAP) {
|
|
iounmap((void *)adapter->base);
|
|
release_mem_region(adapter->host->base, 128);
|
|
} else
|
|
release_region(adapter->base, 16);
|
|
|
|
mega_free_sgl(adapter);
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
if (adapter->controller_proc_dir_entry) {
|
|
remove_proc_entry("stat", adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("config",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("mailbox",
|
|
adapter->controller_proc_dir_entry);
|
|
#if MEGA_HAVE_ENH_PROC
|
|
remove_proc_entry("rebuild-rate",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("battery-status",
|
|
adapter->controller_proc_dir_entry);
|
|
|
|
remove_proc_entry("diskdrives-ch0",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("diskdrives-ch1",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("diskdrives-ch2",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("diskdrives-ch3",
|
|
adapter->controller_proc_dir_entry);
|
|
|
|
remove_proc_entry("raiddrives-0-9",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("raiddrives-10-19",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("raiddrives-20-29",
|
|
adapter->controller_proc_dir_entry);
|
|
remove_proc_entry("raiddrives-30-39",
|
|
adapter->controller_proc_dir_entry);
|
|
#endif
|
|
{
|
|
char buf[12] = { 0 };
|
|
sprintf(buf, "hba%d", adapter->host->host_no);
|
|
remove_proc_entry(buf, mega_proc_dir_entry);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE,
|
|
adapter->mega_buffer, adapter->buf_dma_handle);
|
|
kfree(adapter->scb_list);
|
|
pci_free_consistent(adapter->dev, sizeof(mbox64_t),
|
|
adapter->una_mbox64, adapter->una_mbox64_dma);
|
|
|
|
scsi_host_put(host);
|
|
pci_disable_device(pdev);
|
|
|
|
hba_count--;
|
|
}
|
|
|
|
static void
|
|
megaraid_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *host = pci_get_drvdata(pdev);
|
|
adapter_t *adapter = (adapter_t *)host->hostdata;
|
|
|
|
__megaraid_shutdown(adapter);
|
|
}
|
|
|
|
static struct pci_device_id megaraid_pci_tbl[] = {
|
|
{PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{0,}
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl);
|
|
|
|
static struct pci_driver megaraid_pci_driver = {
|
|
.name = "megaraid_legacy",
|
|
.id_table = megaraid_pci_tbl,
|
|
.probe = megaraid_probe_one,
|
|
.remove = megaraid_remove_one,
|
|
.shutdown = megaraid_shutdown,
|
|
};
|
|
|
|
static int __init megaraid_init(void)
|
|
{
|
|
int error;
|
|
|
|
if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN))
|
|
max_cmd_per_lun = MAX_CMD_PER_LUN;
|
|
if (max_mbox_busy_wait > MBOX_BUSY_WAIT)
|
|
max_mbox_busy_wait = MBOX_BUSY_WAIT;
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
mega_proc_dir_entry = proc_mkdir("megaraid", NULL);
|
|
if (!mega_proc_dir_entry) {
|
|
printk(KERN_WARNING
|
|
"megaraid: failed to create megaraid root\n");
|
|
}
|
|
#endif
|
|
error = pci_register_driver(&megaraid_pci_driver);
|
|
if (error) {
|
|
#ifdef CONFIG_PROC_FS
|
|
remove_proc_entry("megaraid", NULL);
|
|
#endif
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Register the driver as a character device, for applications
|
|
* to access it for ioctls.
|
|
* First argument (major) to register_chrdev implies a dynamic
|
|
* major number allocation.
|
|
*/
|
|
major = register_chrdev(0, "megadev_legacy", &megadev_fops);
|
|
if (!major) {
|
|
printk(KERN_WARNING
|
|
"megaraid: failed to register char device\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit megaraid_exit(void)
|
|
{
|
|
/*
|
|
* Unregister the character device interface to the driver.
|
|
*/
|
|
unregister_chrdev(major, "megadev_legacy");
|
|
|
|
pci_unregister_driver(&megaraid_pci_driver);
|
|
|
|
#ifdef CONFIG_PROC_FS
|
|
remove_proc_entry("megaraid", NULL);
|
|
#endif
|
|
}
|
|
|
|
module_init(megaraid_init);
|
|
module_exit(megaraid_exit);
|
|
|
|
/* vi: set ts=8 sw=8 tw=78: */
|