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![Kees Cook](/assets/img/avatar_default.png)
On the quest to remove all VLAs from the kernel[1] this moves the sg_list variable off the stack, as already done for other allocated buffers in adpt_i2o_passthru(). Additionally consolidates the error path for kfree(). [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
3616 lines
92 KiB
C
3616 lines
92 KiB
C
/***************************************************************************
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dpti.c - description
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-------------------
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begin : Thu Sep 7 2000
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copyright : (C) 2000 by Adaptec
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July 30, 2001 First version being submitted
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for inclusion in the kernel. V2.4
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See Documentation/scsi/dpti.txt for history, notes, license info
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and credits
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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/***************************************************************************
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* Sat Dec 20 2003 Go Taniguchi <go@turbolinux.co.jp>
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- Support 2.6 kernel and DMA-mapping
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- ioctl fix for raid tools
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- use schedule_timeout in long long loop
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**************************************************************************/
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/*#define DEBUG 1 */
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/*#define UARTDELAY 1 */
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#include <linux/module.h>
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MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn");
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MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
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////////////////////////////////////////////////////////////////
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#include <linux/ioctl.h> /* For SCSI-Passthrough */
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#include <linux/uaccess.h>
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#include <linux/stat.h>
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#include <linux/slab.h> /* for kmalloc() */
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#include <linux/pci.h> /* for PCI support */
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#include <linux/proc_fs.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h> /* for udelay */
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#include <linux/interrupt.h>
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#include <linux/kernel.h> /* for printk */
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#include <linux/sched.h>
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#include <linux/reboot.h>
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#include <linux/spinlock.h>
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#include <linux/dma-mapping.h>
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#include <linux/timer.h>
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#include <linux/string.h>
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#include <linux/ioport.h>
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#include <linux/mutex.h>
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#include <asm/processor.h> /* for boot_cpu_data */
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#include <asm/pgtable.h>
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#include <asm/io.h> /* for virt_to_bus, etc. */
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#include "dpt/dptsig.h"
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#include "dpti.h"
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/*============================================================================
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* Create a binary signature - this is read by dptsig
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* Needed for our management apps
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*============================================================================
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*/
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static DEFINE_MUTEX(adpt_mutex);
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static dpt_sig_S DPTI_sig = {
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{'d', 'P', 't', 'S', 'i', 'G'}, SIG_VERSION,
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#ifdef __i386__
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PROC_INTEL, PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM,
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#elif defined(__ia64__)
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PROC_INTEL, PROC_IA64,
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#elif defined(__sparc__)
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PROC_ULTRASPARC, PROC_ULTRASPARC,
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#elif defined(__alpha__)
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PROC_ALPHA, PROC_ALPHA,
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#else
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(-1),(-1),
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#endif
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FT_HBADRVR, 0, OEM_DPT, OS_LINUX, CAP_OVERLAP, DEV_ALL,
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ADF_ALL_SC5, 0, 0, DPT_VERSION, DPT_REVISION, DPT_SUBREVISION,
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DPT_MONTH, DPT_DAY, DPT_YEAR, "Adaptec Linux I2O RAID Driver"
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};
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/*============================================================================
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* Globals
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*============================================================================
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*/
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static DEFINE_MUTEX(adpt_configuration_lock);
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static struct i2o_sys_tbl *sys_tbl;
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static dma_addr_t sys_tbl_pa;
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static int sys_tbl_ind;
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static int sys_tbl_len;
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static adpt_hba* hba_chain = NULL;
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static int hba_count = 0;
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static struct class *adpt_sysfs_class;
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static long adpt_unlocked_ioctl(struct file *, unsigned int, unsigned long);
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#ifdef CONFIG_COMPAT
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static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long);
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#endif
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static const struct file_operations adpt_fops = {
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.unlocked_ioctl = adpt_unlocked_ioctl,
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.open = adpt_open,
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.release = adpt_close,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = compat_adpt_ioctl,
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#endif
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.llseek = noop_llseek,
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};
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/* Structures and definitions for synchronous message posting.
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* See adpt_i2o_post_wait() for description
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* */
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struct adpt_i2o_post_wait_data
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{
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int status;
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u32 id;
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adpt_wait_queue_head_t *wq;
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struct adpt_i2o_post_wait_data *next;
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};
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static struct adpt_i2o_post_wait_data *adpt_post_wait_queue = NULL;
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static u32 adpt_post_wait_id = 0;
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static DEFINE_SPINLOCK(adpt_post_wait_lock);
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/*============================================================================
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* Functions
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*============================================================================
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*/
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static inline int dpt_dma64(adpt_hba *pHba)
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{
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return (sizeof(dma_addr_t) > 4 && (pHba)->dma64);
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}
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static inline u32 dma_high(dma_addr_t addr)
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{
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return upper_32_bits(addr);
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}
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static inline u32 dma_low(dma_addr_t addr)
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{
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return (u32)addr;
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}
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static u8 adpt_read_blink_led(adpt_hba* host)
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{
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if (host->FwDebugBLEDflag_P) {
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if( readb(host->FwDebugBLEDflag_P) == 0xbc ){
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return readb(host->FwDebugBLEDvalue_P);
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}
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}
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return 0;
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}
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/*============================================================================
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* Scsi host template interface functions
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*============================================================================
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*/
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#ifdef MODULE
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static struct pci_device_id dptids[] = {
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{ PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
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{ PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
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{ 0, }
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};
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#endif
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MODULE_DEVICE_TABLE(pci,dptids);
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static int adpt_detect(struct scsi_host_template* sht)
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{
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struct pci_dev *pDev = NULL;
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adpt_hba *pHba;
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adpt_hba *next;
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PINFO("Detecting Adaptec I2O RAID controllers...\n");
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/* search for all Adatpec I2O RAID cards */
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while ((pDev = pci_get_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) {
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if(pDev->device == PCI_DPT_DEVICE_ID ||
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pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){
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if(adpt_install_hba(sht, pDev) ){
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PERROR("Could not Init an I2O RAID device\n");
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PERROR("Will not try to detect others.\n");
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return hba_count-1;
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}
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pci_dev_get(pDev);
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}
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}
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/* In INIT state, Activate IOPs */
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for (pHba = hba_chain; pHba; pHba = next) {
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next = pHba->next;
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// Activate does get status , init outbound, and get hrt
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if (adpt_i2o_activate_hba(pHba) < 0) {
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adpt_i2o_delete_hba(pHba);
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}
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}
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/* Active IOPs in HOLD state */
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rebuild_sys_tab:
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if (hba_chain == NULL)
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return 0;
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/*
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* If build_sys_table fails, we kill everything and bail
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* as we can't init the IOPs w/o a system table
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*/
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if (adpt_i2o_build_sys_table() < 0) {
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adpt_i2o_sys_shutdown();
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return 0;
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}
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PDEBUG("HBA's in HOLD state\n");
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/* If IOP don't get online, we need to rebuild the System table */
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for (pHba = hba_chain; pHba; pHba = pHba->next) {
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if (adpt_i2o_online_hba(pHba) < 0) {
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adpt_i2o_delete_hba(pHba);
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goto rebuild_sys_tab;
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}
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}
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/* Active IOPs now in OPERATIONAL state */
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PDEBUG("HBA's in OPERATIONAL state\n");
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printk("dpti: If you have a lot of devices this could take a few minutes.\n");
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for (pHba = hba_chain; pHba; pHba = next) {
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next = pHba->next;
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printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name);
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if (adpt_i2o_lct_get(pHba) < 0){
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adpt_i2o_delete_hba(pHba);
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continue;
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}
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if (adpt_i2o_parse_lct(pHba) < 0){
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adpt_i2o_delete_hba(pHba);
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continue;
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}
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adpt_inquiry(pHba);
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}
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adpt_sysfs_class = class_create(THIS_MODULE, "dpt_i2o");
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if (IS_ERR(adpt_sysfs_class)) {
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printk(KERN_WARNING"dpti: unable to create dpt_i2o class\n");
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adpt_sysfs_class = NULL;
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}
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for (pHba = hba_chain; pHba; pHba = next) {
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next = pHba->next;
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if (adpt_scsi_host_alloc(pHba, sht) < 0){
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adpt_i2o_delete_hba(pHba);
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continue;
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}
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pHba->initialized = TRUE;
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pHba->state &= ~DPTI_STATE_RESET;
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if (adpt_sysfs_class) {
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struct device *dev = device_create(adpt_sysfs_class,
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NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), NULL,
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"dpti%d", pHba->unit);
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if (IS_ERR(dev)) {
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printk(KERN_WARNING"dpti%d: unable to "
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"create device in dpt_i2o class\n",
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pHba->unit);
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}
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}
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}
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// Register our control device node
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// nodes will need to be created in /dev to access this
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// the nodes can not be created from within the driver
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if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) {
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adpt_i2o_sys_shutdown();
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return 0;
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}
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return hba_count;
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}
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static void adpt_release(adpt_hba *pHba)
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{
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struct Scsi_Host *shost = pHba->host;
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scsi_remove_host(shost);
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// adpt_i2o_quiesce_hba(pHba);
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adpt_i2o_delete_hba(pHba);
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scsi_host_put(shost);
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}
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static void adpt_inquiry(adpt_hba* pHba)
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{
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u32 msg[17];
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u32 *mptr;
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u32 *lenptr;
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int direction;
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int scsidir;
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u32 len;
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u32 reqlen;
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u8* buf;
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dma_addr_t addr;
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u8 scb[16];
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s32 rcode;
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memset(msg, 0, sizeof(msg));
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buf = dma_alloc_coherent(&pHba->pDev->dev, 80, &addr, GFP_KERNEL);
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if(!buf){
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printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name);
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return;
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}
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memset((void*)buf, 0, 36);
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len = 36;
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direction = 0x00000000;
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scsidir =0x40000000; // DATA IN (iop<--dev)
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if (dpt_dma64(pHba))
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reqlen = 17; // SINGLE SGE, 64 bit
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else
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reqlen = 14; // SINGLE SGE, 32 bit
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/* Stick the headers on */
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msg[0] = reqlen<<16 | SGL_OFFSET_12;
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msg[1] = (0xff<<24|HOST_TID<<12|ADAPTER_TID);
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msg[2] = 0;
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msg[3] = 0;
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// Adaptec/DPT Private stuff
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msg[4] = I2O_CMD_SCSI_EXEC|DPT_ORGANIZATION_ID<<16;
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msg[5] = ADAPTER_TID | 1<<16 /* Interpret*/;
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/* Direction, disconnect ok | sense data | simple queue , CDBLen */
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// I2O_SCB_FLAG_ENABLE_DISCONNECT |
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// I2O_SCB_FLAG_SIMPLE_QUEUE_TAG |
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// I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
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msg[6] = scsidir|0x20a00000| 6 /* cmd len*/;
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mptr=msg+7;
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memset(scb, 0, sizeof(scb));
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// Write SCSI command into the message - always 16 byte block
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scb[0] = INQUIRY;
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scb[1] = 0;
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scb[2] = 0;
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scb[3] = 0;
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scb[4] = 36;
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scb[5] = 0;
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// Don't care about the rest of scb
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memcpy(mptr, scb, sizeof(scb));
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mptr+=4;
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lenptr=mptr++; /* Remember me - fill in when we know */
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/* Now fill in the SGList and command */
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*lenptr = len;
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if (dpt_dma64(pHba)) {
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*mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */
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*mptr++ = 1 << PAGE_SHIFT;
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*mptr++ = 0xD0000000|direction|len;
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*mptr++ = dma_low(addr);
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*mptr++ = dma_high(addr);
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} else {
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*mptr++ = 0xD0000000|direction|len;
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*mptr++ = addr;
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}
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// Send it on it's way
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rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120);
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if (rcode != 0) {
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sprintf(pHba->detail, "Adaptec I2O RAID");
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printk(KERN_INFO "%s: Inquiry Error (%d)\n",pHba->name,rcode);
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if (rcode != -ETIME && rcode != -EINTR)
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dma_free_coherent(&pHba->pDev->dev, 80, buf, addr);
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} else {
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memset(pHba->detail, 0, sizeof(pHba->detail));
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memcpy(&(pHba->detail), "Vendor: Adaptec ", 16);
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memcpy(&(pHba->detail[16]), " Model: ", 8);
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memcpy(&(pHba->detail[24]), (u8*) &buf[16], 16);
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memcpy(&(pHba->detail[40]), " FW: ", 4);
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memcpy(&(pHba->detail[44]), (u8*) &buf[32], 4);
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pHba->detail[48] = '\0'; /* precautionary */
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dma_free_coherent(&pHba->pDev->dev, 80, buf, addr);
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}
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adpt_i2o_status_get(pHba);
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return ;
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}
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static int adpt_slave_configure(struct scsi_device * device)
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{
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struct Scsi_Host *host = device->host;
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adpt_hba* pHba;
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pHba = (adpt_hba *) host->hostdata[0];
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if (host->can_queue && device->tagged_supported) {
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scsi_change_queue_depth(device,
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host->can_queue - 1);
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}
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return 0;
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}
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static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
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{
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adpt_hba* pHba = NULL;
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struct adpt_device* pDev = NULL; /* dpt per device information */
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cmd->scsi_done = done;
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/*
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* SCSI REQUEST_SENSE commands will be executed automatically by the
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* Host Adapter for any errors, so they should not be executed
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* explicitly unless the Sense Data is zero indicating that no error
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* occurred.
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*/
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if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) {
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cmd->result = (DID_OK << 16);
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cmd->scsi_done(cmd);
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return 0;
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}
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pHba = (adpt_hba*)cmd->device->host->hostdata[0];
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if (!pHba) {
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return FAILED;
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}
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rmb();
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if ((pHba->state) & DPTI_STATE_RESET)
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return SCSI_MLQUEUE_HOST_BUSY;
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|
|
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// TODO if the cmd->device if offline then I may need to issue a bus rescan
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// followed by a get_lct to see if the device is there anymore
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if((pDev = (struct adpt_device*) (cmd->device->hostdata)) == NULL) {
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/*
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* First command request for this device. Set up a pointer
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* to the device structure. This should be a TEST_UNIT_READY
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* command from scan_scsis_single.
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*/
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if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun)) == NULL) {
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// TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response
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// with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue.
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cmd->result = (DID_NO_CONNECT << 16);
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cmd->scsi_done(cmd);
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return 0;
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}
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cmd->device->hostdata = pDev;
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}
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pDev->pScsi_dev = cmd->device;
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|
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/*
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* If we are being called from when the device is being reset,
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* delay processing of the command until later.
|
|
*/
|
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if (pDev->state & DPTI_DEV_RESET ) {
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return FAILED;
|
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}
|
|
return adpt_scsi_to_i2o(pHba, cmd, pDev);
|
|
}
|
|
|
|
static DEF_SCSI_QCMD(adpt_queue)
|
|
|
|
static int adpt_bios_param(struct scsi_device *sdev, struct block_device *dev,
|
|
sector_t capacity, int geom[])
|
|
{
|
|
int heads=-1;
|
|
int sectors=-1;
|
|
int cylinders=-1;
|
|
|
|
// *** First lets set the default geometry ****
|
|
|
|
// If the capacity is less than ox2000
|
|
if (capacity < 0x2000 ) { // floppy
|
|
heads = 18;
|
|
sectors = 2;
|
|
}
|
|
// else if between 0x2000 and 0x20000
|
|
else if (capacity < 0x20000) {
|
|
heads = 64;
|
|
sectors = 32;
|
|
}
|
|
// else if between 0x20000 and 0x40000
|
|
else if (capacity < 0x40000) {
|
|
heads = 65;
|
|
sectors = 63;
|
|
}
|
|
// else if between 0x4000 and 0x80000
|
|
else if (capacity < 0x80000) {
|
|
heads = 128;
|
|
sectors = 63;
|
|
}
|
|
// else if greater than 0x80000
|
|
else {
|
|
heads = 255;
|
|
sectors = 63;
|
|
}
|
|
cylinders = sector_div(capacity, heads * sectors);
|
|
|
|
// Special case if CDROM
|
|
if(sdev->type == 5) { // CDROM
|
|
heads = 252;
|
|
sectors = 63;
|
|
cylinders = 1111;
|
|
}
|
|
|
|
geom[0] = heads;
|
|
geom[1] = sectors;
|
|
geom[2] = cylinders;
|
|
|
|
PDEBUG("adpt_bios_param: exit\n");
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const char *adpt_info(struct Scsi_Host *host)
|
|
{
|
|
adpt_hba* pHba;
|
|
|
|
pHba = (adpt_hba *) host->hostdata[0];
|
|
return (char *) (pHba->detail);
|
|
}
|
|
|
|
static int adpt_show_info(struct seq_file *m, struct Scsi_Host *host)
|
|
{
|
|
struct adpt_device* d;
|
|
int id;
|
|
int chan;
|
|
adpt_hba* pHba;
|
|
int unit;
|
|
|
|
// Find HBA (host bus adapter) we are looking for
|
|
mutex_lock(&adpt_configuration_lock);
|
|
for (pHba = hba_chain; pHba; pHba = pHba->next) {
|
|
if (pHba->host == host) {
|
|
break; /* found adapter */
|
|
}
|
|
}
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
if (pHba == NULL) {
|
|
return 0;
|
|
}
|
|
host = pHba->host;
|
|
|
|
seq_printf(m, "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION);
|
|
seq_printf(m, "%s\n", pHba->detail);
|
|
seq_printf(m, "SCSI Host=scsi%d Control Node=/dev/%s irq=%d\n",
|
|
pHba->host->host_no, pHba->name, host->irq);
|
|
seq_printf(m, "\tpost fifo size = %d\n\treply fifo size = %d\n\tsg table size = %d\n\n",
|
|
host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize);
|
|
|
|
seq_puts(m, "Devices:\n");
|
|
for(chan = 0; chan < MAX_CHANNEL; chan++) {
|
|
for(id = 0; id < MAX_ID; id++) {
|
|
d = pHba->channel[chan].device[id];
|
|
while(d) {
|
|
seq_printf(m,"\t%-24.24s", d->pScsi_dev->vendor);
|
|
seq_printf(m," Rev: %-8.8s\n", d->pScsi_dev->rev);
|
|
|
|
unit = d->pI2o_dev->lct_data.tid;
|
|
seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%llu) (%s)\n\n",
|
|
unit, (int)d->scsi_channel, (int)d->scsi_id, d->scsi_lun,
|
|
scsi_device_online(d->pScsi_dev)? "online":"offline");
|
|
d = d->next_lun;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Turn a struct scsi_cmnd * into a unique 32 bit 'context'.
|
|
*/
|
|
static u32 adpt_cmd_to_context(struct scsi_cmnd *cmd)
|
|
{
|
|
return (u32)cmd->serial_number;
|
|
}
|
|
|
|
/*
|
|
* Go from a u32 'context' to a struct scsi_cmnd * .
|
|
* This could probably be made more efficient.
|
|
*/
|
|
static struct scsi_cmnd *
|
|
adpt_cmd_from_context(adpt_hba * pHba, u32 context)
|
|
{
|
|
struct scsi_cmnd * cmd;
|
|
struct scsi_device * d;
|
|
|
|
if (context == 0)
|
|
return NULL;
|
|
|
|
spin_unlock(pHba->host->host_lock);
|
|
shost_for_each_device(d, pHba->host) {
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&d->list_lock, flags);
|
|
list_for_each_entry(cmd, &d->cmd_list, list) {
|
|
if (((u32)cmd->serial_number == context)) {
|
|
spin_unlock_irqrestore(&d->list_lock, flags);
|
|
scsi_device_put(d);
|
|
spin_lock(pHba->host->host_lock);
|
|
return cmd;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&d->list_lock, flags);
|
|
}
|
|
spin_lock(pHba->host->host_lock);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Turn a pointer to ioctl reply data into an u32 'context'
|
|
*/
|
|
static u32 adpt_ioctl_to_context(adpt_hba * pHba, void *reply)
|
|
{
|
|
#if BITS_PER_LONG == 32
|
|
return (u32)(unsigned long)reply;
|
|
#else
|
|
ulong flags = 0;
|
|
u32 nr, i;
|
|
|
|
spin_lock_irqsave(pHba->host->host_lock, flags);
|
|
nr = ARRAY_SIZE(pHba->ioctl_reply_context);
|
|
for (i = 0; i < nr; i++) {
|
|
if (pHba->ioctl_reply_context[i] == NULL) {
|
|
pHba->ioctl_reply_context[i] = reply;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(pHba->host->host_lock, flags);
|
|
if (i >= nr) {
|
|
printk(KERN_WARNING"%s: Too many outstanding "
|
|
"ioctl commands\n", pHba->name);
|
|
return (u32)-1;
|
|
}
|
|
|
|
return i;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Go from an u32 'context' to a pointer to ioctl reply data.
|
|
*/
|
|
static void *adpt_ioctl_from_context(adpt_hba *pHba, u32 context)
|
|
{
|
|
#if BITS_PER_LONG == 32
|
|
return (void *)(unsigned long)context;
|
|
#else
|
|
void *p = pHba->ioctl_reply_context[context];
|
|
pHba->ioctl_reply_context[context] = NULL;
|
|
|
|
return p;
|
|
#endif
|
|
}
|
|
|
|
/*===========================================================================
|
|
* Error Handling routines
|
|
*===========================================================================
|
|
*/
|
|
|
|
static int adpt_abort(struct scsi_cmnd * cmd)
|
|
{
|
|
adpt_hba* pHba = NULL; /* host bus adapter structure */
|
|
struct adpt_device* dptdevice; /* dpt per device information */
|
|
u32 msg[5];
|
|
int rcode;
|
|
|
|
if(cmd->serial_number == 0){
|
|
return FAILED;
|
|
}
|
|
pHba = (adpt_hba*) cmd->device->host->hostdata[0];
|
|
printk(KERN_INFO"%s: Trying to Abort\n",pHba->name);
|
|
if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) {
|
|
printk(KERN_ERR "%s: Unable to abort: No device in cmnd\n",pHba->name);
|
|
return FAILED;
|
|
}
|
|
|
|
memset(msg, 0, sizeof(msg));
|
|
msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
|
|
msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid;
|
|
msg[2] = 0;
|
|
msg[3]= 0;
|
|
msg[4] = adpt_cmd_to_context(cmd);
|
|
if (pHba->host)
|
|
spin_lock_irq(pHba->host->host_lock);
|
|
rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
|
|
if (pHba->host)
|
|
spin_unlock_irq(pHba->host->host_lock);
|
|
if (rcode != 0) {
|
|
if(rcode == -EOPNOTSUPP ){
|
|
printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name);
|
|
return FAILED;
|
|
}
|
|
printk(KERN_INFO"%s: Abort failed.\n",pHba->name);
|
|
return FAILED;
|
|
}
|
|
printk(KERN_INFO"%s: Abort complete.\n",pHba->name);
|
|
return SUCCESS;
|
|
}
|
|
|
|
|
|
#define I2O_DEVICE_RESET 0x27
|
|
// This is the same for BLK and SCSI devices
|
|
// NOTE this is wrong in the i2o.h definitions
|
|
// This is not currently supported by our adapter but we issue it anyway
|
|
static int adpt_device_reset(struct scsi_cmnd* cmd)
|
|
{
|
|
adpt_hba* pHba;
|
|
u32 msg[4];
|
|
u32 rcode;
|
|
int old_state;
|
|
struct adpt_device* d = cmd->device->hostdata;
|
|
|
|
pHba = (void*) cmd->device->host->hostdata[0];
|
|
printk(KERN_INFO"%s: Trying to reset device\n",pHba->name);
|
|
if (!d) {
|
|
printk(KERN_INFO"%s: Reset Device: Device Not found\n",pHba->name);
|
|
return FAILED;
|
|
}
|
|
memset(msg, 0, sizeof(msg));
|
|
msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
|
|
msg[1] = (I2O_DEVICE_RESET<<24|HOST_TID<<12|d->tid);
|
|
msg[2] = 0;
|
|
msg[3] = 0;
|
|
|
|
if (pHba->host)
|
|
spin_lock_irq(pHba->host->host_lock);
|
|
old_state = d->state;
|
|
d->state |= DPTI_DEV_RESET;
|
|
rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
|
|
d->state = old_state;
|
|
if (pHba->host)
|
|
spin_unlock_irq(pHba->host->host_lock);
|
|
if (rcode != 0) {
|
|
if(rcode == -EOPNOTSUPP ){
|
|
printk(KERN_INFO"%s: Device reset not supported\n",pHba->name);
|
|
return FAILED;
|
|
}
|
|
printk(KERN_INFO"%s: Device reset failed\n",pHba->name);
|
|
return FAILED;
|
|
} else {
|
|
printk(KERN_INFO"%s: Device reset successful\n",pHba->name);
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
|
|
|
|
#define I2O_HBA_BUS_RESET 0x87
|
|
// This version of bus reset is called by the eh_error handler
|
|
static int adpt_bus_reset(struct scsi_cmnd* cmd)
|
|
{
|
|
adpt_hba* pHba;
|
|
u32 msg[4];
|
|
u32 rcode;
|
|
|
|
pHba = (adpt_hba*)cmd->device->host->hostdata[0];
|
|
memset(msg, 0, sizeof(msg));
|
|
printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %d\n",pHba->name, cmd->device->channel,pHba->channel[cmd->device->channel].tid );
|
|
msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
|
|
msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid);
|
|
msg[2] = 0;
|
|
msg[3] = 0;
|
|
if (pHba->host)
|
|
spin_lock_irq(pHba->host->host_lock);
|
|
rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
|
|
if (pHba->host)
|
|
spin_unlock_irq(pHba->host->host_lock);
|
|
if (rcode != 0) {
|
|
printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name);
|
|
return FAILED;
|
|
} else {
|
|
printk(KERN_WARNING"%s: Bus reset success.\n",pHba->name);
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
|
|
// This version of reset is called by the eh_error_handler
|
|
static int __adpt_reset(struct scsi_cmnd* cmd)
|
|
{
|
|
adpt_hba* pHba;
|
|
int rcode;
|
|
char name[32];
|
|
|
|
pHba = (adpt_hba*)cmd->device->host->hostdata[0];
|
|
strncpy(name, pHba->name, sizeof(name));
|
|
printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n", name, cmd->device->channel, pHba->channel[cmd->device->channel].tid);
|
|
rcode = adpt_hba_reset(pHba);
|
|
if(rcode == 0){
|
|
printk(KERN_WARNING"%s: HBA reset complete\n", name);
|
|
return SUCCESS;
|
|
} else {
|
|
printk(KERN_WARNING"%s: HBA reset failed (%x)\n", name, rcode);
|
|
return FAILED;
|
|
}
|
|
}
|
|
|
|
static int adpt_reset(struct scsi_cmnd* cmd)
|
|
{
|
|
int rc;
|
|
|
|
spin_lock_irq(cmd->device->host->host_lock);
|
|
rc = __adpt_reset(cmd);
|
|
spin_unlock_irq(cmd->device->host->host_lock);
|
|
|
|
return rc;
|
|
}
|
|
|
|
// This version of reset is called by the ioctls and indirectly from eh_error_handler via adpt_reset
|
|
static int adpt_hba_reset(adpt_hba* pHba)
|
|
{
|
|
int rcode;
|
|
|
|
pHba->state |= DPTI_STATE_RESET;
|
|
|
|
// Activate does get status , init outbound, and get hrt
|
|
if ((rcode=adpt_i2o_activate_hba(pHba)) < 0) {
|
|
printk(KERN_ERR "%s: Could not activate\n", pHba->name);
|
|
adpt_i2o_delete_hba(pHba);
|
|
return rcode;
|
|
}
|
|
|
|
if ((rcode=adpt_i2o_build_sys_table()) < 0) {
|
|
adpt_i2o_delete_hba(pHba);
|
|
return rcode;
|
|
}
|
|
PDEBUG("%s: in HOLD state\n",pHba->name);
|
|
|
|
if ((rcode=adpt_i2o_online_hba(pHba)) < 0) {
|
|
adpt_i2o_delete_hba(pHba);
|
|
return rcode;
|
|
}
|
|
PDEBUG("%s: in OPERATIONAL state\n",pHba->name);
|
|
|
|
if ((rcode=adpt_i2o_lct_get(pHba)) < 0){
|
|
adpt_i2o_delete_hba(pHba);
|
|
return rcode;
|
|
}
|
|
|
|
if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){
|
|
adpt_i2o_delete_hba(pHba);
|
|
return rcode;
|
|
}
|
|
pHba->state &= ~DPTI_STATE_RESET;
|
|
|
|
adpt_fail_posted_scbs(pHba);
|
|
return 0; /* return success */
|
|
}
|
|
|
|
/*===========================================================================
|
|
*
|
|
*===========================================================================
|
|
*/
|
|
|
|
|
|
static void adpt_i2o_sys_shutdown(void)
|
|
{
|
|
adpt_hba *pHba, *pNext;
|
|
struct adpt_i2o_post_wait_data *p1, *old;
|
|
|
|
printk(KERN_INFO"Shutting down Adaptec I2O controllers.\n");
|
|
printk(KERN_INFO" This could take a few minutes if there are many devices attached\n");
|
|
/* Delete all IOPs from the controller chain */
|
|
/* They should have already been released by the
|
|
* scsi-core
|
|
*/
|
|
for (pHba = hba_chain; pHba; pHba = pNext) {
|
|
pNext = pHba->next;
|
|
adpt_i2o_delete_hba(pHba);
|
|
}
|
|
|
|
/* Remove any timedout entries from the wait queue. */
|
|
// spin_lock_irqsave(&adpt_post_wait_lock, flags);
|
|
/* Nothing should be outstanding at this point so just
|
|
* free them
|
|
*/
|
|
for(p1 = adpt_post_wait_queue; p1;) {
|
|
old = p1;
|
|
p1 = p1->next;
|
|
kfree(old);
|
|
}
|
|
// spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
|
|
adpt_post_wait_queue = NULL;
|
|
|
|
printk(KERN_INFO "Adaptec I2O controllers down.\n");
|
|
}
|
|
|
|
static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev)
|
|
{
|
|
|
|
adpt_hba* pHba = NULL;
|
|
adpt_hba* p = NULL;
|
|
ulong base_addr0_phys = 0;
|
|
ulong base_addr1_phys = 0;
|
|
u32 hba_map0_area_size = 0;
|
|
u32 hba_map1_area_size = 0;
|
|
void __iomem *base_addr_virt = NULL;
|
|
void __iomem *msg_addr_virt = NULL;
|
|
int dma64 = 0;
|
|
|
|
int raptorFlag = FALSE;
|
|
|
|
if(pci_enable_device(pDev)) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (pci_request_regions(pDev, "dpt_i2o")) {
|
|
PERROR("dpti: adpt_config_hba: pci request region failed\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
pci_set_master(pDev);
|
|
|
|
/*
|
|
* See if we should enable dma64 mode.
|
|
*/
|
|
if (sizeof(dma_addr_t) > 4 &&
|
|
pci_set_dma_mask(pDev, DMA_BIT_MASK(64)) == 0) {
|
|
if (dma_get_required_mask(&pDev->dev) > DMA_BIT_MASK(32))
|
|
dma64 = 1;
|
|
}
|
|
if (!dma64 && pci_set_dma_mask(pDev, DMA_BIT_MASK(32)) != 0)
|
|
return -EINVAL;
|
|
|
|
/* adapter only supports message blocks below 4GB */
|
|
pci_set_consistent_dma_mask(pDev, DMA_BIT_MASK(32));
|
|
|
|
base_addr0_phys = pci_resource_start(pDev,0);
|
|
hba_map0_area_size = pci_resource_len(pDev,0);
|
|
|
|
// Check if standard PCI card or single BAR Raptor
|
|
if(pDev->device == PCI_DPT_DEVICE_ID){
|
|
if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){
|
|
// Raptor card with this device id needs 4M
|
|
hba_map0_area_size = 0x400000;
|
|
} else { // Not Raptor - it is a PCI card
|
|
if(hba_map0_area_size > 0x100000 ){
|
|
hba_map0_area_size = 0x100000;
|
|
}
|
|
}
|
|
} else {// Raptor split BAR config
|
|
// Use BAR1 in this configuration
|
|
base_addr1_phys = pci_resource_start(pDev,1);
|
|
hba_map1_area_size = pci_resource_len(pDev,1);
|
|
raptorFlag = TRUE;
|
|
}
|
|
|
|
#if BITS_PER_LONG == 64
|
|
/*
|
|
* The original Adaptec 64 bit driver has this comment here:
|
|
* "x86_64 machines need more optimal mappings"
|
|
*
|
|
* I assume some HBAs report ridiculously large mappings
|
|
* and we need to limit them on platforms with IOMMUs.
|
|
*/
|
|
if (raptorFlag == TRUE) {
|
|
if (hba_map0_area_size > 128)
|
|
hba_map0_area_size = 128;
|
|
if (hba_map1_area_size > 524288)
|
|
hba_map1_area_size = 524288;
|
|
} else {
|
|
if (hba_map0_area_size > 524288)
|
|
hba_map0_area_size = 524288;
|
|
}
|
|
#endif
|
|
|
|
base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
|
|
if (!base_addr_virt) {
|
|
pci_release_regions(pDev);
|
|
PERROR("dpti: adpt_config_hba: io remap failed\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if(raptorFlag == TRUE) {
|
|
msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size );
|
|
if (!msg_addr_virt) {
|
|
PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n");
|
|
iounmap(base_addr_virt);
|
|
pci_release_regions(pDev);
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
msg_addr_virt = base_addr_virt;
|
|
}
|
|
|
|
// Allocate and zero the data structure
|
|
pHba = kzalloc(sizeof(adpt_hba), GFP_KERNEL);
|
|
if (!pHba) {
|
|
if (msg_addr_virt != base_addr_virt)
|
|
iounmap(msg_addr_virt);
|
|
iounmap(base_addr_virt);
|
|
pci_release_regions(pDev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mutex_lock(&adpt_configuration_lock);
|
|
|
|
if(hba_chain != NULL){
|
|
for(p = hba_chain; p->next; p = p->next);
|
|
p->next = pHba;
|
|
} else {
|
|
hba_chain = pHba;
|
|
}
|
|
pHba->next = NULL;
|
|
pHba->unit = hba_count;
|
|
sprintf(pHba->name, "dpti%d", hba_count);
|
|
hba_count++;
|
|
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
|
|
pHba->pDev = pDev;
|
|
pHba->base_addr_phys = base_addr0_phys;
|
|
|
|
// Set up the Virtual Base Address of the I2O Device
|
|
pHba->base_addr_virt = base_addr_virt;
|
|
pHba->msg_addr_virt = msg_addr_virt;
|
|
pHba->irq_mask = base_addr_virt+0x30;
|
|
pHba->post_port = base_addr_virt+0x40;
|
|
pHba->reply_port = base_addr_virt+0x44;
|
|
|
|
pHba->hrt = NULL;
|
|
pHba->lct = NULL;
|
|
pHba->lct_size = 0;
|
|
pHba->status_block = NULL;
|
|
pHba->post_count = 0;
|
|
pHba->state = DPTI_STATE_RESET;
|
|
pHba->pDev = pDev;
|
|
pHba->devices = NULL;
|
|
pHba->dma64 = dma64;
|
|
|
|
// Initializing the spinlocks
|
|
spin_lock_init(&pHba->state_lock);
|
|
spin_lock_init(&adpt_post_wait_lock);
|
|
|
|
if(raptorFlag == 0){
|
|
printk(KERN_INFO "Adaptec I2O RAID controller"
|
|
" %d at %p size=%x irq=%d%s\n",
|
|
hba_count-1, base_addr_virt,
|
|
hba_map0_area_size, pDev->irq,
|
|
dma64 ? " (64-bit DMA)" : "");
|
|
} else {
|
|
printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d%s\n",
|
|
hba_count-1, pDev->irq,
|
|
dma64 ? " (64-bit DMA)" : "");
|
|
printk(KERN_INFO" BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size);
|
|
printk(KERN_INFO" BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size);
|
|
}
|
|
|
|
if (request_irq (pDev->irq, adpt_isr, IRQF_SHARED, pHba->name, pHba)) {
|
|
printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq);
|
|
adpt_i2o_delete_hba(pHba);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void adpt_i2o_delete_hba(adpt_hba* pHba)
|
|
{
|
|
adpt_hba* p1;
|
|
adpt_hba* p2;
|
|
struct i2o_device* d;
|
|
struct i2o_device* next;
|
|
int i;
|
|
int j;
|
|
struct adpt_device* pDev;
|
|
struct adpt_device* pNext;
|
|
|
|
|
|
mutex_lock(&adpt_configuration_lock);
|
|
if(pHba->host){
|
|
free_irq(pHba->host->irq, pHba);
|
|
}
|
|
p2 = NULL;
|
|
for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){
|
|
if(p1 == pHba) {
|
|
if(p2) {
|
|
p2->next = p1->next;
|
|
} else {
|
|
hba_chain = p1->next;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
hba_count--;
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
|
|
iounmap(pHba->base_addr_virt);
|
|
pci_release_regions(pHba->pDev);
|
|
if(pHba->msg_addr_virt != pHba->base_addr_virt){
|
|
iounmap(pHba->msg_addr_virt);
|
|
}
|
|
if(pHba->FwDebugBuffer_P)
|
|
iounmap(pHba->FwDebugBuffer_P);
|
|
if(pHba->hrt) {
|
|
dma_free_coherent(&pHba->pDev->dev,
|
|
pHba->hrt->num_entries * pHba->hrt->entry_len << 2,
|
|
pHba->hrt, pHba->hrt_pa);
|
|
}
|
|
if(pHba->lct) {
|
|
dma_free_coherent(&pHba->pDev->dev, pHba->lct_size,
|
|
pHba->lct, pHba->lct_pa);
|
|
}
|
|
if(pHba->status_block) {
|
|
dma_free_coherent(&pHba->pDev->dev, sizeof(i2o_status_block),
|
|
pHba->status_block, pHba->status_block_pa);
|
|
}
|
|
if(pHba->reply_pool) {
|
|
dma_free_coherent(&pHba->pDev->dev,
|
|
pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
|
|
pHba->reply_pool, pHba->reply_pool_pa);
|
|
}
|
|
|
|
for(d = pHba->devices; d ; d = next){
|
|
next = d->next;
|
|
kfree(d);
|
|
}
|
|
for(i = 0 ; i < pHba->top_scsi_channel ; i++){
|
|
for(j = 0; j < MAX_ID; j++){
|
|
if(pHba->channel[i].device[j] != NULL){
|
|
for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){
|
|
pNext = pDev->next_lun;
|
|
kfree(pDev);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
pci_dev_put(pHba->pDev);
|
|
if (adpt_sysfs_class)
|
|
device_destroy(adpt_sysfs_class,
|
|
MKDEV(DPTI_I2O_MAJOR, pHba->unit));
|
|
kfree(pHba);
|
|
|
|
if(hba_count <= 0){
|
|
unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);
|
|
if (adpt_sysfs_class) {
|
|
class_destroy(adpt_sysfs_class);
|
|
adpt_sysfs_class = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun)
|
|
{
|
|
struct adpt_device* d;
|
|
|
|
if(chan < 0 || chan >= MAX_CHANNEL)
|
|
return NULL;
|
|
|
|
d = pHba->channel[chan].device[id];
|
|
if(!d || d->tid == 0) {
|
|
return NULL;
|
|
}
|
|
|
|
/* If it is the only lun at that address then this should match*/
|
|
if(d->scsi_lun == lun){
|
|
return d;
|
|
}
|
|
|
|
/* else we need to look through all the luns */
|
|
for(d=d->next_lun ; d ; d = d->next_lun){
|
|
if(d->scsi_lun == lun){
|
|
return d;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
|
|
{
|
|
// I used my own version of the WAIT_QUEUE_HEAD
|
|
// to handle some version differences
|
|
// When embedded in the kernel this could go back to the vanilla one
|
|
ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post);
|
|
int status = 0;
|
|
ulong flags = 0;
|
|
struct adpt_i2o_post_wait_data *p1, *p2;
|
|
struct adpt_i2o_post_wait_data *wait_data =
|
|
kmalloc(sizeof(struct adpt_i2o_post_wait_data), GFP_ATOMIC);
|
|
DECLARE_WAITQUEUE(wait, current);
|
|
|
|
if (!wait_data)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* The spin locking is needed to keep anyone from playing
|
|
* with the queue pointers and id while we do the same
|
|
*/
|
|
spin_lock_irqsave(&adpt_post_wait_lock, flags);
|
|
// TODO we need a MORE unique way of getting ids
|
|
// to support async LCT get
|
|
wait_data->next = adpt_post_wait_queue;
|
|
adpt_post_wait_queue = wait_data;
|
|
adpt_post_wait_id++;
|
|
adpt_post_wait_id &= 0x7fff;
|
|
wait_data->id = adpt_post_wait_id;
|
|
spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
|
|
|
|
wait_data->wq = &adpt_wq_i2o_post;
|
|
wait_data->status = -ETIMEDOUT;
|
|
|
|
add_wait_queue(&adpt_wq_i2o_post, &wait);
|
|
|
|
msg[2] |= 0x80000000 | ((u32)wait_data->id);
|
|
timeout *= HZ;
|
|
if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
if(pHba->host)
|
|
spin_unlock_irq(pHba->host->host_lock);
|
|
if (!timeout)
|
|
schedule();
|
|
else{
|
|
timeout = schedule_timeout(timeout);
|
|
if (timeout == 0) {
|
|
// I/O issued, but cannot get result in
|
|
// specified time. Freeing resorces is
|
|
// dangerous.
|
|
status = -ETIME;
|
|
}
|
|
}
|
|
if(pHba->host)
|
|
spin_lock_irq(pHba->host->host_lock);
|
|
}
|
|
remove_wait_queue(&adpt_wq_i2o_post, &wait);
|
|
|
|
if(status == -ETIMEDOUT){
|
|
printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit);
|
|
// We will have to free the wait_data memory during shutdown
|
|
return status;
|
|
}
|
|
|
|
/* Remove the entry from the queue. */
|
|
p2 = NULL;
|
|
spin_lock_irqsave(&adpt_post_wait_lock, flags);
|
|
for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) {
|
|
if(p1 == wait_data) {
|
|
if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) {
|
|
status = -EOPNOTSUPP;
|
|
}
|
|
if(p2) {
|
|
p2->next = p1->next;
|
|
} else {
|
|
adpt_post_wait_queue = p1->next;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
|
|
|
|
kfree(wait_data);
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len)
|
|
{
|
|
|
|
u32 m = EMPTY_QUEUE;
|
|
u32 __iomem *msg;
|
|
ulong timeout = jiffies + 30*HZ;
|
|
do {
|
|
rmb();
|
|
m = readl(pHba->post_port);
|
|
if (m != EMPTY_QUEUE) {
|
|
break;
|
|
}
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit);
|
|
return -ETIMEDOUT;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
} while(m == EMPTY_QUEUE);
|
|
|
|
msg = pHba->msg_addr_virt + m;
|
|
memcpy_toio(msg, data, len);
|
|
wmb();
|
|
|
|
//post message
|
|
writel(m, pHba->post_port);
|
|
wmb();
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void adpt_i2o_post_wait_complete(u32 context, int status)
|
|
{
|
|
struct adpt_i2o_post_wait_data *p1 = NULL;
|
|
/*
|
|
* We need to search through the adpt_post_wait
|
|
* queue to see if the given message is still
|
|
* outstanding. If not, it means that the IOP
|
|
* took longer to respond to the message than we
|
|
* had allowed and timer has already expired.
|
|
* Not much we can do about that except log
|
|
* it for debug purposes, increase timeout, and recompile
|
|
*
|
|
* Lock needed to keep anyone from moving queue pointers
|
|
* around while we're looking through them.
|
|
*/
|
|
|
|
context &= 0x7fff;
|
|
|
|
spin_lock(&adpt_post_wait_lock);
|
|
for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
|
|
if(p1->id == context) {
|
|
p1->status = status;
|
|
spin_unlock(&adpt_post_wait_lock);
|
|
wake_up_interruptible(p1->wq);
|
|
return;
|
|
}
|
|
}
|
|
spin_unlock(&adpt_post_wait_lock);
|
|
// If this happens we lose commands that probably really completed
|
|
printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context);
|
|
printk(KERN_DEBUG" Tasks in wait queue:\n");
|
|
for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
|
|
printk(KERN_DEBUG" %d\n",p1->id);
|
|
}
|
|
return;
|
|
}
|
|
|
|
static s32 adpt_i2o_reset_hba(adpt_hba* pHba)
|
|
{
|
|
u32 msg[8];
|
|
u8* status;
|
|
dma_addr_t addr;
|
|
u32 m = EMPTY_QUEUE ;
|
|
ulong timeout = jiffies + (TMOUT_IOPRESET*HZ);
|
|
|
|
if(pHba->initialized == FALSE) { // First time reset should be quick
|
|
timeout = jiffies + (25*HZ);
|
|
} else {
|
|
adpt_i2o_quiesce_hba(pHba);
|
|
}
|
|
|
|
do {
|
|
rmb();
|
|
m = readl(pHba->post_port);
|
|
if (m != EMPTY_QUEUE) {
|
|
break;
|
|
}
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_WARNING"Timeout waiting for message!\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
} while (m == EMPTY_QUEUE);
|
|
|
|
status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL);
|
|
if(status == NULL) {
|
|
adpt_send_nop(pHba, m);
|
|
printk(KERN_ERR"IOP reset failed - no free memory.\n");
|
|
return -ENOMEM;
|
|
}
|
|
memset(status,0,4);
|
|
|
|
msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0;
|
|
msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID;
|
|
msg[2]=0;
|
|
msg[3]=0;
|
|
msg[4]=0;
|
|
msg[5]=0;
|
|
msg[6]=dma_low(addr);
|
|
msg[7]=dma_high(addr);
|
|
|
|
memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg));
|
|
wmb();
|
|
writel(m, pHba->post_port);
|
|
wmb();
|
|
|
|
while(*status == 0){
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name);
|
|
/* We lose 4 bytes of "status" here, but we cannot
|
|
free these because controller may awake and corrupt
|
|
those bytes at any time */
|
|
/* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */
|
|
return -ETIMEDOUT;
|
|
}
|
|
rmb();
|
|
schedule_timeout_uninterruptible(1);
|
|
}
|
|
|
|
if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) {
|
|
PDEBUG("%s: Reset in progress...\n", pHba->name);
|
|
// Here we wait for message frame to become available
|
|
// indicated that reset has finished
|
|
do {
|
|
rmb();
|
|
m = readl(pHba->post_port);
|
|
if (m != EMPTY_QUEUE) {
|
|
break;
|
|
}
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name);
|
|
/* We lose 4 bytes of "status" here, but we
|
|
cannot free these because controller may
|
|
awake and corrupt those bytes at any time */
|
|
/* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */
|
|
return -ETIMEDOUT;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
} while (m == EMPTY_QUEUE);
|
|
// Flush the offset
|
|
adpt_send_nop(pHba, m);
|
|
}
|
|
adpt_i2o_status_get(pHba);
|
|
if(*status == 0x02 ||
|
|
pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
|
|
printk(KERN_WARNING"%s: Reset reject, trying to clear\n",
|
|
pHba->name);
|
|
} else {
|
|
PDEBUG("%s: Reset completed.\n", pHba->name);
|
|
}
|
|
|
|
dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
|
|
#ifdef UARTDELAY
|
|
// This delay is to allow someone attached to the card through the debug UART to
|
|
// set up the dump levels that they want before the rest of the initialization sequence
|
|
adpt_delay(20000);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int adpt_i2o_parse_lct(adpt_hba* pHba)
|
|
{
|
|
int i;
|
|
int max;
|
|
int tid;
|
|
struct i2o_device *d;
|
|
i2o_lct *lct = pHba->lct;
|
|
u8 bus_no = 0;
|
|
s16 scsi_id;
|
|
u64 scsi_lun;
|
|
u32 buf[10]; // larger than 7, or 8 ...
|
|
struct adpt_device* pDev;
|
|
|
|
if (lct == NULL) {
|
|
printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
|
|
return -1;
|
|
}
|
|
|
|
max = lct->table_size;
|
|
max -= 3;
|
|
max /= 9;
|
|
|
|
for(i=0;i<max;i++) {
|
|
if( lct->lct_entry[i].user_tid != 0xfff){
|
|
/*
|
|
* If we have hidden devices, we need to inform the upper layers about
|
|
* the possible maximum id reference to handle device access when
|
|
* an array is disassembled. This code has no other purpose but to
|
|
* allow us future access to devices that are currently hidden
|
|
* behind arrays, hotspares or have not been configured (JBOD mode).
|
|
*/
|
|
if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE &&
|
|
lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL &&
|
|
lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
|
|
continue;
|
|
}
|
|
tid = lct->lct_entry[i].tid;
|
|
// I2O_DPT_DEVICE_INFO_GROUP_NO;
|
|
if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
|
|
continue;
|
|
}
|
|
bus_no = buf[0]>>16;
|
|
scsi_id = buf[1];
|
|
scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
|
|
if(bus_no >= MAX_CHANNEL) { // Something wrong skip it
|
|
printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
|
|
continue;
|
|
}
|
|
if (scsi_id >= MAX_ID){
|
|
printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no);
|
|
continue;
|
|
}
|
|
if(bus_no > pHba->top_scsi_channel){
|
|
pHba->top_scsi_channel = bus_no;
|
|
}
|
|
if(scsi_id > pHba->top_scsi_id){
|
|
pHba->top_scsi_id = scsi_id;
|
|
}
|
|
if(scsi_lun > pHba->top_scsi_lun){
|
|
pHba->top_scsi_lun = scsi_lun;
|
|
}
|
|
continue;
|
|
}
|
|
d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
|
|
if(d==NULL)
|
|
{
|
|
printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
d->controller = pHba;
|
|
d->next = NULL;
|
|
|
|
memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
|
|
|
|
d->flags = 0;
|
|
tid = d->lct_data.tid;
|
|
adpt_i2o_report_hba_unit(pHba, d);
|
|
adpt_i2o_install_device(pHba, d);
|
|
}
|
|
bus_no = 0;
|
|
for(d = pHba->devices; d ; d = d->next) {
|
|
if(d->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT ||
|
|
d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PORT){
|
|
tid = d->lct_data.tid;
|
|
// TODO get the bus_no from hrt-but for now they are in order
|
|
//bus_no =
|
|
if(bus_no > pHba->top_scsi_channel){
|
|
pHba->top_scsi_channel = bus_no;
|
|
}
|
|
pHba->channel[bus_no].type = d->lct_data.class_id;
|
|
pHba->channel[bus_no].tid = tid;
|
|
if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0)
|
|
{
|
|
pHba->channel[bus_no].scsi_id = buf[1];
|
|
PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]);
|
|
}
|
|
// TODO remove - this is just until we get from hrt
|
|
bus_no++;
|
|
if(bus_no >= MAX_CHANNEL) { // Something wrong skip it
|
|
printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Setup adpt_device table
|
|
for(d = pHba->devices; d ; d = d->next) {
|
|
if(d->lct_data.class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
|
|
d->lct_data.class_id == I2O_CLASS_SCSI_PERIPHERAL ||
|
|
d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
|
|
|
|
tid = d->lct_data.tid;
|
|
scsi_id = -1;
|
|
// I2O_DPT_DEVICE_INFO_GROUP_NO;
|
|
if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) {
|
|
bus_no = buf[0]>>16;
|
|
scsi_id = buf[1];
|
|
scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
|
|
if(bus_no >= MAX_CHANNEL) { // Something wrong skip it
|
|
continue;
|
|
}
|
|
if (scsi_id >= MAX_ID) {
|
|
continue;
|
|
}
|
|
if( pHba->channel[bus_no].device[scsi_id] == NULL){
|
|
pDev = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
|
|
if(pDev == NULL) {
|
|
return -ENOMEM;
|
|
}
|
|
pHba->channel[bus_no].device[scsi_id] = pDev;
|
|
} else {
|
|
for( pDev = pHba->channel[bus_no].device[scsi_id];
|
|
pDev->next_lun; pDev = pDev->next_lun){
|
|
}
|
|
pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
|
|
if(pDev->next_lun == NULL) {
|
|
return -ENOMEM;
|
|
}
|
|
pDev = pDev->next_lun;
|
|
}
|
|
pDev->tid = tid;
|
|
pDev->scsi_channel = bus_no;
|
|
pDev->scsi_id = scsi_id;
|
|
pDev->scsi_lun = scsi_lun;
|
|
pDev->pI2o_dev = d;
|
|
d->owner = pDev;
|
|
pDev->type = (buf[0])&0xff;
|
|
pDev->flags = (buf[0]>>8)&0xff;
|
|
if(scsi_id > pHba->top_scsi_id){
|
|
pHba->top_scsi_id = scsi_id;
|
|
}
|
|
if(scsi_lun > pHba->top_scsi_lun){
|
|
pHba->top_scsi_lun = scsi_lun;
|
|
}
|
|
}
|
|
if(scsi_id == -1){
|
|
printk(KERN_WARNING"Could not find SCSI ID for %s\n",
|
|
d->lct_data.identity_tag);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Each I2O controller has a chain of devices on it - these match
|
|
* the useful parts of the LCT of the board.
|
|
*/
|
|
|
|
static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d)
|
|
{
|
|
mutex_lock(&adpt_configuration_lock);
|
|
d->controller=pHba;
|
|
d->owner=NULL;
|
|
d->next=pHba->devices;
|
|
d->prev=NULL;
|
|
if (pHba->devices != NULL){
|
|
pHba->devices->prev=d;
|
|
}
|
|
pHba->devices=d;
|
|
*d->dev_name = 0;
|
|
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int adpt_open(struct inode *inode, struct file *file)
|
|
{
|
|
int minor;
|
|
adpt_hba* pHba;
|
|
|
|
mutex_lock(&adpt_mutex);
|
|
//TODO check for root access
|
|
//
|
|
minor = iminor(inode);
|
|
if (minor >= hba_count) {
|
|
mutex_unlock(&adpt_mutex);
|
|
return -ENXIO;
|
|
}
|
|
mutex_lock(&adpt_configuration_lock);
|
|
for (pHba = hba_chain; pHba; pHba = pHba->next) {
|
|
if (pHba->unit == minor) {
|
|
break; /* found adapter */
|
|
}
|
|
}
|
|
if (pHba == NULL) {
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
mutex_unlock(&adpt_mutex);
|
|
return -ENXIO;
|
|
}
|
|
|
|
// if(pHba->in_use){
|
|
// mutex_unlock(&adpt_configuration_lock);
|
|
// return -EBUSY;
|
|
// }
|
|
|
|
pHba->in_use = 1;
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
mutex_unlock(&adpt_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int adpt_close(struct inode *inode, struct file *file)
|
|
{
|
|
int minor;
|
|
adpt_hba* pHba;
|
|
|
|
minor = iminor(inode);
|
|
if (minor >= hba_count) {
|
|
return -ENXIO;
|
|
}
|
|
mutex_lock(&adpt_configuration_lock);
|
|
for (pHba = hba_chain; pHba; pHba = pHba->next) {
|
|
if (pHba->unit == minor) {
|
|
break; /* found adapter */
|
|
}
|
|
}
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
if (pHba == NULL) {
|
|
return -ENXIO;
|
|
}
|
|
|
|
pHba->in_use = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
|
|
{
|
|
u32 msg[MAX_MESSAGE_SIZE];
|
|
u32* reply = NULL;
|
|
u32 size = 0;
|
|
u32 reply_size = 0;
|
|
u32 __user *user_msg = arg;
|
|
u32 __user * user_reply = NULL;
|
|
void **sg_list = NULL;
|
|
u32 sg_offset = 0;
|
|
u32 sg_count = 0;
|
|
int sg_index = 0;
|
|
u32 i = 0;
|
|
u32 rcode = 0;
|
|
void *p = NULL;
|
|
dma_addr_t addr;
|
|
ulong flags = 0;
|
|
|
|
memset(&msg, 0, MAX_MESSAGE_SIZE*4);
|
|
// get user msg size in u32s
|
|
if(get_user(size, &user_msg[0])){
|
|
return -EFAULT;
|
|
}
|
|
size = size>>16;
|
|
|
|
user_reply = &user_msg[size];
|
|
if(size > MAX_MESSAGE_SIZE){
|
|
return -EFAULT;
|
|
}
|
|
size *= 4; // Convert to bytes
|
|
|
|
/* Copy in the user's I2O command */
|
|
if(copy_from_user(msg, user_msg, size)) {
|
|
return -EFAULT;
|
|
}
|
|
get_user(reply_size, &user_reply[0]);
|
|
reply_size = reply_size>>16;
|
|
if(reply_size > REPLY_FRAME_SIZE){
|
|
reply_size = REPLY_FRAME_SIZE;
|
|
}
|
|
reply_size *= 4;
|
|
reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
|
|
if(reply == NULL) {
|
|
printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
sg_offset = (msg[0]>>4)&0xf;
|
|
msg[2] = 0x40000000; // IOCTL context
|
|
msg[3] = adpt_ioctl_to_context(pHba, reply);
|
|
if (msg[3] == (u32)-1) {
|
|
rcode = -EBUSY;
|
|
goto free;
|
|
}
|
|
|
|
sg_list = kcalloc(pHba->sg_tablesize, sizeof(*sg_list), GFP_KERNEL);
|
|
if (!sg_list) {
|
|
rcode = -ENOMEM;
|
|
goto free;
|
|
}
|
|
if(sg_offset) {
|
|
// TODO add 64 bit API
|
|
struct sg_simple_element *sg = (struct sg_simple_element*) (msg+sg_offset);
|
|
sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
|
|
if (sg_count > pHba->sg_tablesize){
|
|
printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count);
|
|
rcode = -EINVAL;
|
|
goto free;
|
|
}
|
|
|
|
for(i = 0; i < sg_count; i++) {
|
|
int sg_size;
|
|
|
|
if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
|
|
printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i, sg[i].flag_count);
|
|
rcode = -EINVAL;
|
|
goto cleanup;
|
|
}
|
|
sg_size = sg[i].flag_count & 0xffffff;
|
|
/* Allocate memory for the transfer */
|
|
p = dma_alloc_coherent(&pHba->pDev->dev, sg_size, &addr, GFP_KERNEL);
|
|
if(!p) {
|
|
printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
|
|
pHba->name,sg_size,i,sg_count);
|
|
rcode = -ENOMEM;
|
|
goto cleanup;
|
|
}
|
|
sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
|
|
/* Copy in the user's SG buffer if necessary */
|
|
if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
|
|
// sg_simple_element API is 32 bit
|
|
if (copy_from_user(p,(void __user *)(ulong)sg[i].addr_bus, sg_size)) {
|
|
printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i);
|
|
rcode = -EFAULT;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
/* sg_simple_element API is 32 bit, but addr < 4GB */
|
|
sg[i].addr_bus = addr;
|
|
}
|
|
}
|
|
|
|
do {
|
|
/*
|
|
* Stop any new commands from enterring the
|
|
* controller while processing the ioctl
|
|
*/
|
|
if (pHba->host) {
|
|
scsi_block_requests(pHba->host);
|
|
spin_lock_irqsave(pHba->host->host_lock, flags);
|
|
}
|
|
rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
|
|
if (rcode != 0)
|
|
printk("adpt_i2o_passthru: post wait failed %d %p\n",
|
|
rcode, reply);
|
|
if (pHba->host) {
|
|
spin_unlock_irqrestore(pHba->host->host_lock, flags);
|
|
scsi_unblock_requests(pHba->host);
|
|
}
|
|
} while (rcode == -ETIMEDOUT);
|
|
|
|
if(rcode){
|
|
goto cleanup;
|
|
}
|
|
|
|
if(sg_offset) {
|
|
/* Copy back the Scatter Gather buffers back to user space */
|
|
u32 j;
|
|
// TODO add 64 bit API
|
|
struct sg_simple_element* sg;
|
|
int sg_size;
|
|
|
|
// re-acquire the original message to handle correctly the sg copy operation
|
|
memset(&msg, 0, MAX_MESSAGE_SIZE*4);
|
|
// get user msg size in u32s
|
|
if(get_user(size, &user_msg[0])){
|
|
rcode = -EFAULT;
|
|
goto cleanup;
|
|
}
|
|
size = size>>16;
|
|
size *= 4;
|
|
if (size > MAX_MESSAGE_SIZE) {
|
|
rcode = -EINVAL;
|
|
goto cleanup;
|
|
}
|
|
/* Copy in the user's I2O command */
|
|
if (copy_from_user (msg, user_msg, size)) {
|
|
rcode = -EFAULT;
|
|
goto cleanup;
|
|
}
|
|
sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
|
|
|
|
// TODO add 64 bit API
|
|
sg = (struct sg_simple_element*)(msg + sg_offset);
|
|
for (j = 0; j < sg_count; j++) {
|
|
/* Copy out the SG list to user's buffer if necessary */
|
|
if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
|
|
sg_size = sg[j].flag_count & 0xffffff;
|
|
// sg_simple_element API is 32 bit
|
|
if (copy_to_user((void __user *)(ulong)sg[j].addr_bus,sg_list[j], sg_size)) {
|
|
printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus);
|
|
rcode = -EFAULT;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Copy back the reply to user space */
|
|
if (reply_size) {
|
|
// we wrote our own values for context - now restore the user supplied ones
|
|
if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
|
|
printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name);
|
|
rcode = -EFAULT;
|
|
}
|
|
if(copy_to_user(user_reply, reply, reply_size)) {
|
|
printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name);
|
|
rcode = -EFAULT;
|
|
}
|
|
}
|
|
|
|
|
|
cleanup:
|
|
if (rcode != -ETIME && rcode != -EINTR) {
|
|
struct sg_simple_element *sg =
|
|
(struct sg_simple_element*) (msg +sg_offset);
|
|
while(sg_index) {
|
|
if(sg_list[--sg_index]) {
|
|
dma_free_coherent(&pHba->pDev->dev,
|
|
sg[sg_index].flag_count & 0xffffff,
|
|
sg_list[sg_index],
|
|
sg[sg_index].addr_bus);
|
|
}
|
|
}
|
|
}
|
|
|
|
free:
|
|
kfree(sg_list);
|
|
kfree(reply);
|
|
return rcode;
|
|
}
|
|
|
|
#if defined __ia64__
|
|
static void adpt_ia64_info(sysInfo_S* si)
|
|
{
|
|
// This is all the info we need for now
|
|
// We will add more info as our new
|
|
// managmenent utility requires it
|
|
si->processorType = PROC_IA64;
|
|
}
|
|
#endif
|
|
|
|
#if defined __sparc__
|
|
static void adpt_sparc_info(sysInfo_S* si)
|
|
{
|
|
// This is all the info we need for now
|
|
// We will add more info as our new
|
|
// managmenent utility requires it
|
|
si->processorType = PROC_ULTRASPARC;
|
|
}
|
|
#endif
|
|
#if defined __alpha__
|
|
static void adpt_alpha_info(sysInfo_S* si)
|
|
{
|
|
// This is all the info we need for now
|
|
// We will add more info as our new
|
|
// managmenent utility requires it
|
|
si->processorType = PROC_ALPHA;
|
|
}
|
|
#endif
|
|
|
|
#if defined __i386__
|
|
|
|
#include <uapi/asm/vm86.h>
|
|
|
|
static void adpt_i386_info(sysInfo_S* si)
|
|
{
|
|
// This is all the info we need for now
|
|
// We will add more info as our new
|
|
// managmenent utility requires it
|
|
switch (boot_cpu_data.x86) {
|
|
case CPU_386:
|
|
si->processorType = PROC_386;
|
|
break;
|
|
case CPU_486:
|
|
si->processorType = PROC_486;
|
|
break;
|
|
case CPU_586:
|
|
si->processorType = PROC_PENTIUM;
|
|
break;
|
|
default: // Just in case
|
|
si->processorType = PROC_PENTIUM;
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* This routine returns information about the system. This does not effect
|
|
* any logic and if the info is wrong - it doesn't matter.
|
|
*/
|
|
|
|
/* Get all the info we can not get from kernel services */
|
|
static int adpt_system_info(void __user *buffer)
|
|
{
|
|
sysInfo_S si;
|
|
|
|
memset(&si, 0, sizeof(si));
|
|
|
|
si.osType = OS_LINUX;
|
|
si.osMajorVersion = 0;
|
|
si.osMinorVersion = 0;
|
|
si.osRevision = 0;
|
|
si.busType = SI_PCI_BUS;
|
|
si.processorFamily = DPTI_sig.dsProcessorFamily;
|
|
|
|
#if defined __i386__
|
|
adpt_i386_info(&si);
|
|
#elif defined (__ia64__)
|
|
adpt_ia64_info(&si);
|
|
#elif defined(__sparc__)
|
|
adpt_sparc_info(&si);
|
|
#elif defined (__alpha__)
|
|
adpt_alpha_info(&si);
|
|
#else
|
|
si.processorType = 0xff ;
|
|
#endif
|
|
if (copy_to_user(buffer, &si, sizeof(si))){
|
|
printk(KERN_WARNING"dpti: Could not copy buffer TO user\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
|
|
{
|
|
int minor;
|
|
int error = 0;
|
|
adpt_hba* pHba;
|
|
ulong flags = 0;
|
|
void __user *argp = (void __user *)arg;
|
|
|
|
minor = iminor(inode);
|
|
if (minor >= DPTI_MAX_HBA){
|
|
return -ENXIO;
|
|
}
|
|
mutex_lock(&adpt_configuration_lock);
|
|
for (pHba = hba_chain; pHba; pHba = pHba->next) {
|
|
if (pHba->unit == minor) {
|
|
break; /* found adapter */
|
|
}
|
|
}
|
|
mutex_unlock(&adpt_configuration_lock);
|
|
if(pHba == NULL){
|
|
return -ENXIO;
|
|
}
|
|
|
|
while((volatile u32) pHba->state & DPTI_STATE_RESET )
|
|
schedule_timeout_uninterruptible(2);
|
|
|
|
switch (cmd) {
|
|
// TODO: handle 3 cases
|
|
case DPT_SIGNATURE:
|
|
if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) {
|
|
return -EFAULT;
|
|
}
|
|
break;
|
|
case I2OUSRCMD:
|
|
return adpt_i2o_passthru(pHba, argp);
|
|
|
|
case DPT_CTRLINFO:{
|
|
drvrHBAinfo_S HbaInfo;
|
|
|
|
#define FLG_OSD_PCI_VALID 0x0001
|
|
#define FLG_OSD_DMA 0x0002
|
|
#define FLG_OSD_I2O 0x0004
|
|
memset(&HbaInfo, 0, sizeof(HbaInfo));
|
|
HbaInfo.drvrHBAnum = pHba->unit;
|
|
HbaInfo.baseAddr = (ulong) pHba->base_addr_phys;
|
|
HbaInfo.blinkState = adpt_read_blink_led(pHba);
|
|
HbaInfo.pciBusNum = pHba->pDev->bus->number;
|
|
HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn);
|
|
HbaInfo.Interrupt = pHba->pDev->irq;
|
|
HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O;
|
|
if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){
|
|
printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name);
|
|
return -EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
case DPT_SYSINFO:
|
|
return adpt_system_info(argp);
|
|
case DPT_BLINKLED:{
|
|
u32 value;
|
|
value = (u32)adpt_read_blink_led(pHba);
|
|
if (copy_to_user(argp, &value, sizeof(value))) {
|
|
return -EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
case I2ORESETCMD: {
|
|
struct Scsi_Host *shost = pHba->host;
|
|
|
|
if (shost)
|
|
spin_lock_irqsave(shost->host_lock, flags);
|
|
adpt_hba_reset(pHba);
|
|
if (shost)
|
|
spin_unlock_irqrestore(shost->host_lock, flags);
|
|
break;
|
|
}
|
|
case I2ORESCANCMD:
|
|
adpt_rescan(pHba);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
static long adpt_unlocked_ioctl(struct file *file, uint cmd, ulong arg)
|
|
{
|
|
struct inode *inode;
|
|
long ret;
|
|
|
|
inode = file_inode(file);
|
|
|
|
mutex_lock(&adpt_mutex);
|
|
ret = adpt_ioctl(inode, file, cmd, arg);
|
|
mutex_unlock(&adpt_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
static long compat_adpt_ioctl(struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct inode *inode;
|
|
long ret;
|
|
|
|
inode = file_inode(file);
|
|
|
|
mutex_lock(&adpt_mutex);
|
|
|
|
switch(cmd) {
|
|
case DPT_SIGNATURE:
|
|
case I2OUSRCMD:
|
|
case DPT_CTRLINFO:
|
|
case DPT_SYSINFO:
|
|
case DPT_BLINKLED:
|
|
case I2ORESETCMD:
|
|
case I2ORESCANCMD:
|
|
case (DPT_TARGET_BUSY & 0xFFFF):
|
|
case DPT_TARGET_BUSY:
|
|
ret = adpt_ioctl(inode, file, cmd, arg);
|
|
break;
|
|
default:
|
|
ret = -ENOIOCTLCMD;
|
|
}
|
|
|
|
mutex_unlock(&adpt_mutex);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static irqreturn_t adpt_isr(int irq, void *dev_id)
|
|
{
|
|
struct scsi_cmnd* cmd;
|
|
adpt_hba* pHba = dev_id;
|
|
u32 m;
|
|
void __iomem *reply;
|
|
u32 status=0;
|
|
u32 context;
|
|
ulong flags = 0;
|
|
int handled = 0;
|
|
|
|
if (pHba == NULL){
|
|
printk(KERN_WARNING"adpt_isr: NULL dev_id\n");
|
|
return IRQ_NONE;
|
|
}
|
|
if(pHba->host)
|
|
spin_lock_irqsave(pHba->host->host_lock, flags);
|
|
|
|
while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) {
|
|
m = readl(pHba->reply_port);
|
|
if(m == EMPTY_QUEUE){
|
|
// Try twice then give up
|
|
rmb();
|
|
m = readl(pHba->reply_port);
|
|
if(m == EMPTY_QUEUE){
|
|
// This really should not happen
|
|
printk(KERN_ERR"dpti: Could not get reply frame\n");
|
|
goto out;
|
|
}
|
|
}
|
|
if (pHba->reply_pool_pa <= m &&
|
|
m < pHba->reply_pool_pa +
|
|
(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4)) {
|
|
reply = (u8 *)pHba->reply_pool +
|
|
(m - pHba->reply_pool_pa);
|
|
} else {
|
|
/* Ick, we should *never* be here */
|
|
printk(KERN_ERR "dpti: reply frame not from pool\n");
|
|
reply = (u8 *)bus_to_virt(m);
|
|
}
|
|
|
|
if (readl(reply) & MSG_FAIL) {
|
|
u32 old_m = readl(reply+28);
|
|
void __iomem *msg;
|
|
u32 old_context;
|
|
PDEBUG("%s: Failed message\n",pHba->name);
|
|
if(old_m >= 0x100000){
|
|
printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m);
|
|
writel(m,pHba->reply_port);
|
|
continue;
|
|
}
|
|
// Transaction context is 0 in failed reply frame
|
|
msg = pHba->msg_addr_virt + old_m;
|
|
old_context = readl(msg+12);
|
|
writel(old_context, reply+12);
|
|
adpt_send_nop(pHba, old_m);
|
|
}
|
|
context = readl(reply+8);
|
|
if(context & 0x40000000){ // IOCTL
|
|
void *p = adpt_ioctl_from_context(pHba, readl(reply+12));
|
|
if( p != NULL) {
|
|
memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4);
|
|
}
|
|
// All IOCTLs will also be post wait
|
|
}
|
|
if(context & 0x80000000){ // Post wait message
|
|
status = readl(reply+16);
|
|
if(status >> 24){
|
|
status &= 0xffff; /* Get detail status */
|
|
} else {
|
|
status = I2O_POST_WAIT_OK;
|
|
}
|
|
if(!(context & 0x40000000)) {
|
|
cmd = adpt_cmd_from_context(pHba,
|
|
readl(reply+12));
|
|
if(cmd != NULL) {
|
|
printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
|
|
}
|
|
}
|
|
adpt_i2o_post_wait_complete(context, status);
|
|
} else { // SCSI message
|
|
cmd = adpt_cmd_from_context (pHba, readl(reply+12));
|
|
if(cmd != NULL){
|
|
scsi_dma_unmap(cmd);
|
|
if(cmd->serial_number != 0) { // If not timedout
|
|
adpt_i2o_to_scsi(reply, cmd);
|
|
}
|
|
}
|
|
}
|
|
writel(m, pHba->reply_port);
|
|
wmb();
|
|
rmb();
|
|
}
|
|
handled = 1;
|
|
out: if(pHba->host)
|
|
spin_unlock_irqrestore(pHba->host->host_lock, flags);
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d)
|
|
{
|
|
int i;
|
|
u32 msg[MAX_MESSAGE_SIZE];
|
|
u32* mptr;
|
|
u32* lptr;
|
|
u32 *lenptr;
|
|
int direction;
|
|
int scsidir;
|
|
int nseg;
|
|
u32 len;
|
|
u32 reqlen;
|
|
s32 rcode;
|
|
dma_addr_t addr;
|
|
|
|
memset(msg, 0 , sizeof(msg));
|
|
len = scsi_bufflen(cmd);
|
|
direction = 0x00000000;
|
|
|
|
scsidir = 0x00000000; // DATA NO XFER
|
|
if(len) {
|
|
/*
|
|
* Set SCBFlags to indicate if data is being transferred
|
|
* in or out, or no data transfer
|
|
* Note: Do not have to verify index is less than 0 since
|
|
* cmd->cmnd[0] is an unsigned char
|
|
*/
|
|
switch(cmd->sc_data_direction){
|
|
case DMA_FROM_DEVICE:
|
|
scsidir =0x40000000; // DATA IN (iop<--dev)
|
|
break;
|
|
case DMA_TO_DEVICE:
|
|
direction=0x04000000; // SGL OUT
|
|
scsidir =0x80000000; // DATA OUT (iop-->dev)
|
|
break;
|
|
case DMA_NONE:
|
|
break;
|
|
case DMA_BIDIRECTIONAL:
|
|
scsidir =0x40000000; // DATA IN (iop<--dev)
|
|
// Assume In - and continue;
|
|
break;
|
|
default:
|
|
printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n",
|
|
pHba->name, cmd->cmnd[0]);
|
|
cmd->result = (DID_OK <<16) | (INITIATOR_ERROR << 8);
|
|
cmd->scsi_done(cmd);
|
|
return 0;
|
|
}
|
|
}
|
|
// msg[0] is set later
|
|
// I2O_CMD_SCSI_EXEC
|
|
msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid);
|
|
msg[2] = 0;
|
|
msg[3] = adpt_cmd_to_context(cmd); /* Want SCSI control block back */
|
|
// Our cards use the transaction context as the tag for queueing
|
|
// Adaptec/DPT Private stuff
|
|
msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16);
|
|
msg[5] = d->tid;
|
|
/* Direction, disconnect ok | sense data | simple queue , CDBLen */
|
|
// I2O_SCB_FLAG_ENABLE_DISCONNECT |
|
|
// I2O_SCB_FLAG_SIMPLE_QUEUE_TAG |
|
|
// I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
|
|
msg[6] = scsidir|0x20a00000|cmd->cmd_len;
|
|
|
|
mptr=msg+7;
|
|
|
|
// Write SCSI command into the message - always 16 byte block
|
|
memset(mptr, 0, 16);
|
|
memcpy(mptr, cmd->cmnd, cmd->cmd_len);
|
|
mptr+=4;
|
|
lenptr=mptr++; /* Remember me - fill in when we know */
|
|
if (dpt_dma64(pHba)) {
|
|
reqlen = 16; // SINGLE SGE
|
|
*mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */
|
|
*mptr++ = 1 << PAGE_SHIFT;
|
|
} else {
|
|
reqlen = 14; // SINGLE SGE
|
|
}
|
|
/* Now fill in the SGList and command */
|
|
|
|
nseg = scsi_dma_map(cmd);
|
|
BUG_ON(nseg < 0);
|
|
if (nseg) {
|
|
struct scatterlist *sg;
|
|
|
|
len = 0;
|
|
scsi_for_each_sg(cmd, sg, nseg, i) {
|
|
lptr = mptr;
|
|
*mptr++ = direction|0x10000000|sg_dma_len(sg);
|
|
len+=sg_dma_len(sg);
|
|
addr = sg_dma_address(sg);
|
|
*mptr++ = dma_low(addr);
|
|
if (dpt_dma64(pHba))
|
|
*mptr++ = dma_high(addr);
|
|
/* Make this an end of list */
|
|
if (i == nseg - 1)
|
|
*lptr = direction|0xD0000000|sg_dma_len(sg);
|
|
}
|
|
reqlen = mptr - msg;
|
|
*lenptr = len;
|
|
|
|
if(cmd->underflow && len != cmd->underflow){
|
|
printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n",
|
|
len, cmd->underflow);
|
|
}
|
|
} else {
|
|
*lenptr = len = 0;
|
|
reqlen = 12;
|
|
}
|
|
|
|
/* Stick the headers on */
|
|
msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0);
|
|
|
|
// Send it on it's way
|
|
rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2);
|
|
if (rcode == 0) {
|
|
return 0;
|
|
}
|
|
return rcode;
|
|
}
|
|
|
|
|
|
static s32 adpt_scsi_host_alloc(adpt_hba* pHba, struct scsi_host_template *sht)
|
|
{
|
|
struct Scsi_Host *host;
|
|
|
|
host = scsi_host_alloc(sht, sizeof(adpt_hba*));
|
|
if (host == NULL) {
|
|
printk("%s: scsi_host_alloc returned NULL\n", pHba->name);
|
|
return -1;
|
|
}
|
|
host->hostdata[0] = (unsigned long)pHba;
|
|
pHba->host = host;
|
|
|
|
host->irq = pHba->pDev->irq;
|
|
/* no IO ports, so don't have to set host->io_port and
|
|
* host->n_io_port
|
|
*/
|
|
host->io_port = 0;
|
|
host->n_io_port = 0;
|
|
/* see comments in scsi_host.h */
|
|
host->max_id = 16;
|
|
host->max_lun = 256;
|
|
host->max_channel = pHba->top_scsi_channel + 1;
|
|
host->cmd_per_lun = 1;
|
|
host->unique_id = (u32)sys_tbl_pa + pHba->unit;
|
|
host->sg_tablesize = pHba->sg_tablesize;
|
|
host->can_queue = pHba->post_fifo_size;
|
|
host->use_cmd_list = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd)
|
|
{
|
|
adpt_hba* pHba;
|
|
u32 hba_status;
|
|
u32 dev_status;
|
|
u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits
|
|
// I know this would look cleaner if I just read bytes
|
|
// but the model I have been using for all the rest of the
|
|
// io is in 4 byte words - so I keep that model
|
|
u16 detailed_status = readl(reply+16) &0xffff;
|
|
dev_status = (detailed_status & 0xff);
|
|
hba_status = detailed_status >> 8;
|
|
|
|
// calculate resid for sg
|
|
scsi_set_resid(cmd, scsi_bufflen(cmd) - readl(reply+20));
|
|
|
|
pHba = (adpt_hba*) cmd->device->host->hostdata[0];
|
|
|
|
cmd->sense_buffer[0] = '\0'; // initialize sense valid flag to false
|
|
|
|
if(!(reply_flags & MSG_FAIL)) {
|
|
switch(detailed_status & I2O_SCSI_DSC_MASK) {
|
|
case I2O_SCSI_DSC_SUCCESS:
|
|
cmd->result = (DID_OK << 16);
|
|
// handle underflow
|
|
if (readl(reply+20) < cmd->underflow) {
|
|
cmd->result = (DID_ERROR <<16);
|
|
printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name);
|
|
}
|
|
break;
|
|
case I2O_SCSI_DSC_REQUEST_ABORTED:
|
|
cmd->result = (DID_ABORT << 16);
|
|
break;
|
|
case I2O_SCSI_DSC_PATH_INVALID:
|
|
case I2O_SCSI_DSC_DEVICE_NOT_PRESENT:
|
|
case I2O_SCSI_DSC_SELECTION_TIMEOUT:
|
|
case I2O_SCSI_DSC_COMMAND_TIMEOUT:
|
|
case I2O_SCSI_DSC_NO_ADAPTER:
|
|
case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE:
|
|
printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%llu) hba status=0x%x, dev status=0x%x, cmd=0x%x\n",
|
|
pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]);
|
|
cmd->result = (DID_TIME_OUT << 16);
|
|
break;
|
|
case I2O_SCSI_DSC_ADAPTER_BUSY:
|
|
case I2O_SCSI_DSC_BUS_BUSY:
|
|
cmd->result = (DID_BUS_BUSY << 16);
|
|
break;
|
|
case I2O_SCSI_DSC_SCSI_BUS_RESET:
|
|
case I2O_SCSI_DSC_BDR_MESSAGE_SENT:
|
|
cmd->result = (DID_RESET << 16);
|
|
break;
|
|
case I2O_SCSI_DSC_PARITY_ERROR_FAILURE:
|
|
printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name);
|
|
cmd->result = (DID_PARITY << 16);
|
|
break;
|
|
case I2O_SCSI_DSC_UNABLE_TO_ABORT:
|
|
case I2O_SCSI_DSC_COMPLETE_WITH_ERROR:
|
|
case I2O_SCSI_DSC_UNABLE_TO_TERMINATE:
|
|
case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED:
|
|
case I2O_SCSI_DSC_AUTOSENSE_FAILED:
|
|
case I2O_SCSI_DSC_DATA_OVERRUN:
|
|
case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE:
|
|
case I2O_SCSI_DSC_SEQUENCE_FAILURE:
|
|
case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR:
|
|
case I2O_SCSI_DSC_PROVIDE_FAILURE:
|
|
case I2O_SCSI_DSC_REQUEST_TERMINATED:
|
|
case I2O_SCSI_DSC_IDE_MESSAGE_SENT:
|
|
case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT:
|
|
case I2O_SCSI_DSC_MESSAGE_RECEIVED:
|
|
case I2O_SCSI_DSC_INVALID_CDB:
|
|
case I2O_SCSI_DSC_LUN_INVALID:
|
|
case I2O_SCSI_DSC_SCSI_TID_INVALID:
|
|
case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE:
|
|
case I2O_SCSI_DSC_NO_NEXUS:
|
|
case I2O_SCSI_DSC_CDB_RECEIVED:
|
|
case I2O_SCSI_DSC_LUN_ALREADY_ENABLED:
|
|
case I2O_SCSI_DSC_QUEUE_FROZEN:
|
|
case I2O_SCSI_DSC_REQUEST_INVALID:
|
|
default:
|
|
printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
|
|
pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
|
|
hba_status, dev_status, cmd->cmnd[0]);
|
|
cmd->result = (DID_ERROR << 16);
|
|
break;
|
|
}
|
|
|
|
// copy over the request sense data if it was a check
|
|
// condition status
|
|
if (dev_status == SAM_STAT_CHECK_CONDITION) {
|
|
u32 len = min(SCSI_SENSE_BUFFERSIZE, 40);
|
|
// Copy over the sense data
|
|
memcpy_fromio(cmd->sense_buffer, (reply+28) , len);
|
|
if(cmd->sense_buffer[0] == 0x70 /* class 7 */ &&
|
|
cmd->sense_buffer[2] == DATA_PROTECT ){
|
|
/* This is to handle an array failed */
|
|
cmd->result = (DID_TIME_OUT << 16);
|
|
printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
|
|
pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
|
|
hba_status, dev_status, cmd->cmnd[0]);
|
|
|
|
}
|
|
}
|
|
} else {
|
|
/* In this condtion we could not talk to the tid
|
|
* the card rejected it. We should signal a retry
|
|
* for a limitted number of retries.
|
|
*/
|
|
cmd->result = (DID_TIME_OUT << 16);
|
|
printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%llu) tid=%d, cmd=0x%x\n",
|
|
pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
|
|
((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]);
|
|
}
|
|
|
|
cmd->result |= (dev_status);
|
|
|
|
if(cmd->scsi_done != NULL){
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
return cmd->result;
|
|
}
|
|
|
|
|
|
static s32 adpt_rescan(adpt_hba* pHba)
|
|
{
|
|
s32 rcode;
|
|
ulong flags = 0;
|
|
|
|
if(pHba->host)
|
|
spin_lock_irqsave(pHba->host->host_lock, flags);
|
|
if ((rcode=adpt_i2o_lct_get(pHba)) < 0)
|
|
goto out;
|
|
if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0)
|
|
goto out;
|
|
rcode = 0;
|
|
out: if(pHba->host)
|
|
spin_unlock_irqrestore(pHba->host->host_lock, flags);
|
|
return rcode;
|
|
}
|
|
|
|
|
|
static s32 adpt_i2o_reparse_lct(adpt_hba* pHba)
|
|
{
|
|
int i;
|
|
int max;
|
|
int tid;
|
|
struct i2o_device *d;
|
|
i2o_lct *lct = pHba->lct;
|
|
u8 bus_no = 0;
|
|
s16 scsi_id;
|
|
u64 scsi_lun;
|
|
u32 buf[10]; // at least 8 u32's
|
|
struct adpt_device* pDev = NULL;
|
|
struct i2o_device* pI2o_dev = NULL;
|
|
|
|
if (lct == NULL) {
|
|
printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
|
|
return -1;
|
|
}
|
|
|
|
max = lct->table_size;
|
|
max -= 3;
|
|
max /= 9;
|
|
|
|
// Mark each drive as unscanned
|
|
for (d = pHba->devices; d; d = d->next) {
|
|
pDev =(struct adpt_device*) d->owner;
|
|
if(!pDev){
|
|
continue;
|
|
}
|
|
pDev->state |= DPTI_DEV_UNSCANNED;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max);
|
|
|
|
for(i=0;i<max;i++) {
|
|
if( lct->lct_entry[i].user_tid != 0xfff){
|
|
continue;
|
|
}
|
|
|
|
if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
|
|
lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL ||
|
|
lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
|
|
tid = lct->lct_entry[i].tid;
|
|
if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
|
|
printk(KERN_ERR"%s: Could not query device\n",pHba->name);
|
|
continue;
|
|
}
|
|
bus_no = buf[0]>>16;
|
|
if (bus_no >= MAX_CHANNEL) { /* Something wrong skip it */
|
|
printk(KERN_WARNING
|
|
"%s: Channel number %d out of range\n",
|
|
pHba->name, bus_no);
|
|
continue;
|
|
}
|
|
|
|
scsi_id = buf[1];
|
|
scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
|
|
pDev = pHba->channel[bus_no].device[scsi_id];
|
|
/* da lun */
|
|
while(pDev) {
|
|
if(pDev->scsi_lun == scsi_lun) {
|
|
break;
|
|
}
|
|
pDev = pDev->next_lun;
|
|
}
|
|
if(!pDev ) { // Something new add it
|
|
d = kmalloc(sizeof(struct i2o_device),
|
|
GFP_ATOMIC);
|
|
if(d==NULL)
|
|
{
|
|
printk(KERN_CRIT "Out of memory for I2O device data.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
d->controller = pHba;
|
|
d->next = NULL;
|
|
|
|
memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
|
|
|
|
d->flags = 0;
|
|
adpt_i2o_report_hba_unit(pHba, d);
|
|
adpt_i2o_install_device(pHba, d);
|
|
|
|
pDev = pHba->channel[bus_no].device[scsi_id];
|
|
if( pDev == NULL){
|
|
pDev =
|
|
kzalloc(sizeof(struct adpt_device),
|
|
GFP_ATOMIC);
|
|
if(pDev == NULL) {
|
|
return -ENOMEM;
|
|
}
|
|
pHba->channel[bus_no].device[scsi_id] = pDev;
|
|
} else {
|
|
while (pDev->next_lun) {
|
|
pDev = pDev->next_lun;
|
|
}
|
|
pDev = pDev->next_lun =
|
|
kzalloc(sizeof(struct adpt_device),
|
|
GFP_ATOMIC);
|
|
if(pDev == NULL) {
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
pDev->tid = d->lct_data.tid;
|
|
pDev->scsi_channel = bus_no;
|
|
pDev->scsi_id = scsi_id;
|
|
pDev->scsi_lun = scsi_lun;
|
|
pDev->pI2o_dev = d;
|
|
d->owner = pDev;
|
|
pDev->type = (buf[0])&0xff;
|
|
pDev->flags = (buf[0]>>8)&0xff;
|
|
// Too late, SCSI system has made up it's mind, but what the hey ...
|
|
if(scsi_id > pHba->top_scsi_id){
|
|
pHba->top_scsi_id = scsi_id;
|
|
}
|
|
if(scsi_lun > pHba->top_scsi_lun){
|
|
pHba->top_scsi_lun = scsi_lun;
|
|
}
|
|
continue;
|
|
} // end of new i2o device
|
|
|
|
// We found an old device - check it
|
|
while(pDev) {
|
|
if(pDev->scsi_lun == scsi_lun) {
|
|
if(!scsi_device_online(pDev->pScsi_dev)) {
|
|
printk(KERN_WARNING"%s: Setting device (%d,%d,%llu) back online\n",
|
|
pHba->name,bus_no,scsi_id,scsi_lun);
|
|
if (pDev->pScsi_dev) {
|
|
scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING);
|
|
}
|
|
}
|
|
d = pDev->pI2o_dev;
|
|
if(d->lct_data.tid != tid) { // something changed
|
|
pDev->tid = tid;
|
|
memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
|
|
if (pDev->pScsi_dev) {
|
|
pDev->pScsi_dev->changed = TRUE;
|
|
pDev->pScsi_dev->removable = TRUE;
|
|
}
|
|
}
|
|
// Found it - mark it scanned
|
|
pDev->state = DPTI_DEV_ONLINE;
|
|
break;
|
|
}
|
|
pDev = pDev->next_lun;
|
|
}
|
|
}
|
|
}
|
|
for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) {
|
|
pDev =(struct adpt_device*) pI2o_dev->owner;
|
|
if(!pDev){
|
|
continue;
|
|
}
|
|
// Drive offline drives that previously existed but could not be found
|
|
// in the LCT table
|
|
if (pDev->state & DPTI_DEV_UNSCANNED){
|
|
pDev->state = DPTI_DEV_OFFLINE;
|
|
printk(KERN_WARNING"%s: Device (%d,%d,%llu) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
|
|
if (pDev->pScsi_dev) {
|
|
scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void adpt_fail_posted_scbs(adpt_hba* pHba)
|
|
{
|
|
struct scsi_cmnd* cmd = NULL;
|
|
struct scsi_device* d = NULL;
|
|
|
|
shost_for_each_device(d, pHba->host) {
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&d->list_lock, flags);
|
|
list_for_each_entry(cmd, &d->cmd_list, list) {
|
|
if(cmd->serial_number == 0){
|
|
continue;
|
|
}
|
|
cmd->result = (DID_OK << 16) | (QUEUE_FULL <<1);
|
|
cmd->scsi_done(cmd);
|
|
}
|
|
spin_unlock_irqrestore(&d->list_lock, flags);
|
|
}
|
|
}
|
|
|
|
|
|
/*============================================================================
|
|
* Routines from i2o subsystem
|
|
*============================================================================
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
* Bring an I2O controller into HOLD state. See the spec.
|
|
*/
|
|
static int adpt_i2o_activate_hba(adpt_hba* pHba)
|
|
{
|
|
int rcode;
|
|
|
|
if(pHba->initialized ) {
|
|
if (adpt_i2o_status_get(pHba) < 0) {
|
|
if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
|
|
printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
|
|
return rcode;
|
|
}
|
|
if (adpt_i2o_status_get(pHba) < 0) {
|
|
printk(KERN_INFO "HBA not responding.\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) {
|
|
printk(KERN_CRIT "%s: hardware fault\n", pHba->name);
|
|
return -1;
|
|
}
|
|
|
|
if (pHba->status_block->iop_state == ADAPTER_STATE_READY ||
|
|
pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL ||
|
|
pHba->status_block->iop_state == ADAPTER_STATE_HOLD ||
|
|
pHba->status_block->iop_state == ADAPTER_STATE_FAILED) {
|
|
adpt_i2o_reset_hba(pHba);
|
|
if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
|
|
printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name);
|
|
return -1;
|
|
}
|
|
}
|
|
} else {
|
|
if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
|
|
printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
|
|
return rcode;
|
|
}
|
|
|
|
}
|
|
|
|
if (adpt_i2o_init_outbound_q(pHba) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
/* In HOLD state */
|
|
|
|
if (adpt_i2o_hrt_get(pHba) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Bring a controller online into OPERATIONAL state.
|
|
*/
|
|
|
|
static int adpt_i2o_online_hba(adpt_hba* pHba)
|
|
{
|
|
if (adpt_i2o_systab_send(pHba) < 0)
|
|
return -1;
|
|
/* In READY state */
|
|
|
|
if (adpt_i2o_enable_hba(pHba) < 0)
|
|
return -1;
|
|
|
|
/* In OPERATIONAL state */
|
|
return 0;
|
|
}
|
|
|
|
static s32 adpt_send_nop(adpt_hba*pHba,u32 m)
|
|
{
|
|
u32 __iomem *msg;
|
|
ulong timeout = jiffies + 5*HZ;
|
|
|
|
while(m == EMPTY_QUEUE){
|
|
rmb();
|
|
m = readl(pHba->post_port);
|
|
if(m != EMPTY_QUEUE){
|
|
break;
|
|
}
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name);
|
|
return 2;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
}
|
|
msg = (u32 __iomem *)(pHba->msg_addr_virt + m);
|
|
writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]);
|
|
writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]);
|
|
writel( 0,&msg[2]);
|
|
wmb();
|
|
|
|
writel(m, pHba->post_port);
|
|
wmb();
|
|
return 0;
|
|
}
|
|
|
|
static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
|
|
{
|
|
u8 *status;
|
|
dma_addr_t addr;
|
|
u32 __iomem *msg = NULL;
|
|
int i;
|
|
ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ;
|
|
u32 m;
|
|
|
|
do {
|
|
rmb();
|
|
m = readl(pHba->post_port);
|
|
if (m != EMPTY_QUEUE) {
|
|
break;
|
|
}
|
|
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name);
|
|
return -ETIMEDOUT;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
} while(m == EMPTY_QUEUE);
|
|
|
|
msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
|
|
|
|
status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL);
|
|
if (!status) {
|
|
adpt_send_nop(pHba, m);
|
|
printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n",
|
|
pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
memset(status, 0, 4);
|
|
|
|
writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]);
|
|
writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]);
|
|
writel(0, &msg[2]);
|
|
writel(0x0106, &msg[3]); /* Transaction context */
|
|
writel(4096, &msg[4]); /* Host page frame size */
|
|
writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]); /* Outbound msg frame size and Initcode */
|
|
writel(0xD0000004, &msg[6]); /* Simple SG LE, EOB */
|
|
writel((u32)addr, &msg[7]);
|
|
|
|
writel(m, pHba->post_port);
|
|
wmb();
|
|
|
|
// Wait for the reply status to come back
|
|
do {
|
|
if (*status) {
|
|
if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) {
|
|
break;
|
|
}
|
|
}
|
|
rmb();
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name);
|
|
/* We lose 4 bytes of "status" here, but we
|
|
cannot free these because controller may
|
|
awake and corrupt those bytes at any time */
|
|
/* dma_free_coherent(&pHba->pDev->dev, 4, status, addr); */
|
|
return -ETIMEDOUT;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
} while (1);
|
|
|
|
// If the command was successful, fill the fifo with our reply
|
|
// message packets
|
|
if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) {
|
|
dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
|
|
return -2;
|
|
}
|
|
dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
|
|
|
|
if(pHba->reply_pool != NULL) {
|
|
dma_free_coherent(&pHba->pDev->dev,
|
|
pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
|
|
pHba->reply_pool, pHba->reply_pool_pa);
|
|
}
|
|
|
|
pHba->reply_pool = dma_alloc_coherent(&pHba->pDev->dev,
|
|
pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
|
|
&pHba->reply_pool_pa, GFP_KERNEL);
|
|
if (!pHba->reply_pool) {
|
|
printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
memset(pHba->reply_pool, 0 , pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4);
|
|
|
|
for(i = 0; i < pHba->reply_fifo_size; i++) {
|
|
writel(pHba->reply_pool_pa + (i * REPLY_FRAME_SIZE * 4),
|
|
pHba->reply_port);
|
|
wmb();
|
|
}
|
|
adpt_i2o_status_get(pHba);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* I2O System Table. Contains information about
|
|
* all the IOPs in the system. Used to inform IOPs
|
|
* about each other's existence.
|
|
*
|
|
* sys_tbl_ver is the CurrentChangeIndicator that is
|
|
* used by IOPs to track changes.
|
|
*/
|
|
|
|
|
|
|
|
static s32 adpt_i2o_status_get(adpt_hba* pHba)
|
|
{
|
|
ulong timeout;
|
|
u32 m;
|
|
u32 __iomem *msg;
|
|
u8 *status_block=NULL;
|
|
|
|
if(pHba->status_block == NULL) {
|
|
pHba->status_block = dma_alloc_coherent(&pHba->pDev->dev,
|
|
sizeof(i2o_status_block),
|
|
&pHba->status_block_pa, GFP_KERNEL);
|
|
if(pHba->status_block == NULL) {
|
|
printk(KERN_ERR
|
|
"dpti%d: Get Status Block failed; Out of memory. \n",
|
|
pHba->unit);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
memset(pHba->status_block, 0, sizeof(i2o_status_block));
|
|
status_block = (u8*)(pHba->status_block);
|
|
timeout = jiffies+TMOUT_GETSTATUS*HZ;
|
|
do {
|
|
rmb();
|
|
m = readl(pHba->post_port);
|
|
if (m != EMPTY_QUEUE) {
|
|
break;
|
|
}
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_ERR "%s: Timeout waiting for message !\n",
|
|
pHba->name);
|
|
return -ETIMEDOUT;
|
|
}
|
|
schedule_timeout_uninterruptible(1);
|
|
} while(m==EMPTY_QUEUE);
|
|
|
|
|
|
msg=(u32 __iomem *)(pHba->msg_addr_virt+m);
|
|
|
|
writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]);
|
|
writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]);
|
|
writel(1, &msg[2]);
|
|
writel(0, &msg[3]);
|
|
writel(0, &msg[4]);
|
|
writel(0, &msg[5]);
|
|
writel( dma_low(pHba->status_block_pa), &msg[6]);
|
|
writel( dma_high(pHba->status_block_pa), &msg[7]);
|
|
writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes
|
|
|
|
//post message
|
|
writel(m, pHba->post_port);
|
|
wmb();
|
|
|
|
while(status_block[87]!=0xff){
|
|
if(time_after(jiffies,timeout)){
|
|
printk(KERN_ERR"dpti%d: Get status timeout.\n",
|
|
pHba->unit);
|
|
return -ETIMEDOUT;
|
|
}
|
|
rmb();
|
|
schedule_timeout_uninterruptible(1);
|
|
}
|
|
|
|
// Set up our number of outbound and inbound messages
|
|
pHba->post_fifo_size = pHba->status_block->max_inbound_frames;
|
|
if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) {
|
|
pHba->post_fifo_size = MAX_TO_IOP_MESSAGES;
|
|
}
|
|
|
|
pHba->reply_fifo_size = pHba->status_block->max_outbound_frames;
|
|
if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) {
|
|
pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES;
|
|
}
|
|
|
|
// Calculate the Scatter Gather list size
|
|
if (dpt_dma64(pHba)) {
|
|
pHba->sg_tablesize
|
|
= ((pHba->status_block->inbound_frame_size * 4
|
|
- 14 * sizeof(u32))
|
|
/ (sizeof(struct sg_simple_element) + sizeof(u32)));
|
|
} else {
|
|
pHba->sg_tablesize
|
|
= ((pHba->status_block->inbound_frame_size * 4
|
|
- 12 * sizeof(u32))
|
|
/ sizeof(struct sg_simple_element));
|
|
}
|
|
if (pHba->sg_tablesize > SG_LIST_ELEMENTS) {
|
|
pHba->sg_tablesize = SG_LIST_ELEMENTS;
|
|
}
|
|
|
|
|
|
#ifdef DEBUG
|
|
printk("dpti%d: State = ",pHba->unit);
|
|
switch(pHba->status_block->iop_state) {
|
|
case 0x01:
|
|
printk("INIT\n");
|
|
break;
|
|
case 0x02:
|
|
printk("RESET\n");
|
|
break;
|
|
case 0x04:
|
|
printk("HOLD\n");
|
|
break;
|
|
case 0x05:
|
|
printk("READY\n");
|
|
break;
|
|
case 0x08:
|
|
printk("OPERATIONAL\n");
|
|
break;
|
|
case 0x10:
|
|
printk("FAILED\n");
|
|
break;
|
|
case 0x11:
|
|
printk("FAULTED\n");
|
|
break;
|
|
default:
|
|
printk("%x (unknown!!)\n",pHba->status_block->iop_state);
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Get the IOP's Logical Configuration Table
|
|
*/
|
|
static int adpt_i2o_lct_get(adpt_hba* pHba)
|
|
{
|
|
u32 msg[8];
|
|
int ret;
|
|
u32 buf[16];
|
|
|
|
if ((pHba->lct_size == 0) || (pHba->lct == NULL)){
|
|
pHba->lct_size = pHba->status_block->expected_lct_size;
|
|
}
|
|
do {
|
|
if (pHba->lct == NULL) {
|
|
pHba->lct = dma_alloc_coherent(&pHba->pDev->dev,
|
|
pHba->lct_size, &pHba->lct_pa,
|
|
GFP_ATOMIC);
|
|
if(pHba->lct == NULL) {
|
|
printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n",
|
|
pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
memset(pHba->lct, 0, pHba->lct_size);
|
|
|
|
msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6;
|
|
msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID;
|
|
msg[2] = 0;
|
|
msg[3] = 0;
|
|
msg[4] = 0xFFFFFFFF; /* All devices */
|
|
msg[5] = 0x00000000; /* Report now */
|
|
msg[6] = 0xD0000000|pHba->lct_size;
|
|
msg[7] = (u32)pHba->lct_pa;
|
|
|
|
if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) {
|
|
printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n",
|
|
pHba->name, ret);
|
|
printk(KERN_ERR"Adaptec: Error Reading Hardware.\n");
|
|
return ret;
|
|
}
|
|
|
|
if ((pHba->lct->table_size << 2) > pHba->lct_size) {
|
|
pHba->lct_size = pHba->lct->table_size << 2;
|
|
dma_free_coherent(&pHba->pDev->dev, pHba->lct_size,
|
|
pHba->lct, pHba->lct_pa);
|
|
pHba->lct = NULL;
|
|
}
|
|
} while (pHba->lct == NULL);
|
|
|
|
PDEBUG("%s: Hardware resource table read.\n", pHba->name);
|
|
|
|
|
|
// I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO;
|
|
if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) {
|
|
pHba->FwDebugBufferSize = buf[1];
|
|
pHba->FwDebugBuffer_P = ioremap(pHba->base_addr_phys + buf[0],
|
|
pHba->FwDebugBufferSize);
|
|
if (pHba->FwDebugBuffer_P) {
|
|
pHba->FwDebugFlags_P = pHba->FwDebugBuffer_P +
|
|
FW_DEBUG_FLAGS_OFFSET;
|
|
pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P +
|
|
FW_DEBUG_BLED_OFFSET;
|
|
pHba->FwDebugBLEDflag_P = pHba->FwDebugBLEDvalue_P + 1;
|
|
pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P +
|
|
FW_DEBUG_STR_LENGTH_OFFSET;
|
|
pHba->FwDebugBuffer_P += buf[2];
|
|
pHba->FwDebugFlags = 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int adpt_i2o_build_sys_table(void)
|
|
{
|
|
adpt_hba* pHba = hba_chain;
|
|
int count = 0;
|
|
|
|
if (sys_tbl)
|
|
dma_free_coherent(&pHba->pDev->dev, sys_tbl_len,
|
|
sys_tbl, sys_tbl_pa);
|
|
|
|
sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs
|
|
(hba_count) * sizeof(struct i2o_sys_tbl_entry);
|
|
|
|
sys_tbl = dma_alloc_coherent(&pHba->pDev->dev,
|
|
sys_tbl_len, &sys_tbl_pa, GFP_KERNEL);
|
|
if (!sys_tbl) {
|
|
printk(KERN_WARNING "SysTab Set failed. Out of memory.\n");
|
|
return -ENOMEM;
|
|
}
|
|
memset(sys_tbl, 0, sys_tbl_len);
|
|
|
|
sys_tbl->num_entries = hba_count;
|
|
sys_tbl->version = I2OVERSION;
|
|
sys_tbl->change_ind = sys_tbl_ind++;
|
|
|
|
for(pHba = hba_chain; pHba; pHba = pHba->next) {
|
|
u64 addr;
|
|
// Get updated Status Block so we have the latest information
|
|
if (adpt_i2o_status_get(pHba)) {
|
|
sys_tbl->num_entries--;
|
|
continue; // try next one
|
|
}
|
|
|
|
sys_tbl->iops[count].org_id = pHba->status_block->org_id;
|
|
sys_tbl->iops[count].iop_id = pHba->unit + 2;
|
|
sys_tbl->iops[count].seg_num = 0;
|
|
sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version;
|
|
sys_tbl->iops[count].iop_state = pHba->status_block->iop_state;
|
|
sys_tbl->iops[count].msg_type = pHba->status_block->msg_type;
|
|
sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size;
|
|
sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ??
|
|
sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities;
|
|
addr = pHba->base_addr_phys + 0x40;
|
|
sys_tbl->iops[count].inbound_low = dma_low(addr);
|
|
sys_tbl->iops[count].inbound_high = dma_high(addr);
|
|
|
|
count++;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
u32 *table = (u32*)sys_tbl;
|
|
printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2));
|
|
for(count = 0; count < (sys_tbl_len >>2); count++) {
|
|
printk(KERN_INFO "sys_tbl[%d] = %0#10x\n",
|
|
count, table[count]);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Dump the information block associated with a given unit (TID)
|
|
*/
|
|
|
|
static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d)
|
|
{
|
|
char buf[64];
|
|
int unit = d->lct_data.tid;
|
|
|
|
printk(KERN_INFO "TID %3.3d ", unit);
|
|
|
|
if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0)
|
|
{
|
|
buf[16]=0;
|
|
printk(" Vendor: %-12.12s", buf);
|
|
}
|
|
if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0)
|
|
{
|
|
buf[16]=0;
|
|
printk(" Device: %-12.12s", buf);
|
|
}
|
|
if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0)
|
|
{
|
|
buf[8]=0;
|
|
printk(" Rev: %-12.12s\n", buf);
|
|
}
|
|
#ifdef DEBUG
|
|
printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id));
|
|
printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class);
|
|
printk(KERN_INFO "\tFlags: ");
|
|
|
|
if(d->lct_data.device_flags&(1<<0))
|
|
printk("C"); // ConfigDialog requested
|
|
if(d->lct_data.device_flags&(1<<1))
|
|
printk("U"); // Multi-user capable
|
|
if(!(d->lct_data.device_flags&(1<<4)))
|
|
printk("P"); // Peer service enabled!
|
|
if(!(d->lct_data.device_flags&(1<<5)))
|
|
printk("M"); // Mgmt service enabled!
|
|
printk("\n");
|
|
#endif
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/*
|
|
* Do i2o class name lookup
|
|
*/
|
|
static const char *adpt_i2o_get_class_name(int class)
|
|
{
|
|
int idx = 16;
|
|
static char *i2o_class_name[] = {
|
|
"Executive",
|
|
"Device Driver Module",
|
|
"Block Device",
|
|
"Tape Device",
|
|
"LAN Interface",
|
|
"WAN Interface",
|
|
"Fibre Channel Port",
|
|
"Fibre Channel Device",
|
|
"SCSI Device",
|
|
"ATE Port",
|
|
"ATE Device",
|
|
"Floppy Controller",
|
|
"Floppy Device",
|
|
"Secondary Bus Port",
|
|
"Peer Transport Agent",
|
|
"Peer Transport",
|
|
"Unknown"
|
|
};
|
|
|
|
switch(class&0xFFF) {
|
|
case I2O_CLASS_EXECUTIVE:
|
|
idx = 0; break;
|
|
case I2O_CLASS_DDM:
|
|
idx = 1; break;
|
|
case I2O_CLASS_RANDOM_BLOCK_STORAGE:
|
|
idx = 2; break;
|
|
case I2O_CLASS_SEQUENTIAL_STORAGE:
|
|
idx = 3; break;
|
|
case I2O_CLASS_LAN:
|
|
idx = 4; break;
|
|
case I2O_CLASS_WAN:
|
|
idx = 5; break;
|
|
case I2O_CLASS_FIBRE_CHANNEL_PORT:
|
|
idx = 6; break;
|
|
case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
|
|
idx = 7; break;
|
|
case I2O_CLASS_SCSI_PERIPHERAL:
|
|
idx = 8; break;
|
|
case I2O_CLASS_ATE_PORT:
|
|
idx = 9; break;
|
|
case I2O_CLASS_ATE_PERIPHERAL:
|
|
idx = 10; break;
|
|
case I2O_CLASS_FLOPPY_CONTROLLER:
|
|
idx = 11; break;
|
|
case I2O_CLASS_FLOPPY_DEVICE:
|
|
idx = 12; break;
|
|
case I2O_CLASS_BUS_ADAPTER_PORT:
|
|
idx = 13; break;
|
|
case I2O_CLASS_PEER_TRANSPORT_AGENT:
|
|
idx = 14; break;
|
|
case I2O_CLASS_PEER_TRANSPORT:
|
|
idx = 15; break;
|
|
}
|
|
return i2o_class_name[idx];
|
|
}
|
|
#endif
|
|
|
|
|
|
static s32 adpt_i2o_hrt_get(adpt_hba* pHba)
|
|
{
|
|
u32 msg[6];
|
|
int ret, size = sizeof(i2o_hrt);
|
|
|
|
do {
|
|
if (pHba->hrt == NULL) {
|
|
pHba->hrt = dma_alloc_coherent(&pHba->pDev->dev,
|
|
size, &pHba->hrt_pa, GFP_KERNEL);
|
|
if (pHba->hrt == NULL) {
|
|
printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4;
|
|
msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID;
|
|
msg[2]= 0;
|
|
msg[3]= 0;
|
|
msg[4]= (0xD0000000 | size); /* Simple transaction */
|
|
msg[5]= (u32)pHba->hrt_pa; /* Dump it here */
|
|
|
|
if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) {
|
|
printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret);
|
|
return ret;
|
|
}
|
|
|
|
if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) {
|
|
int newsize = pHba->hrt->num_entries * pHba->hrt->entry_len << 2;
|
|
dma_free_coherent(&pHba->pDev->dev, size,
|
|
pHba->hrt, pHba->hrt_pa);
|
|
size = newsize;
|
|
pHba->hrt = NULL;
|
|
}
|
|
} while(pHba->hrt == NULL);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Query one scalar group value or a whole scalar group.
|
|
*/
|
|
static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid,
|
|
int group, int field, void *buf, int buflen)
|
|
{
|
|
u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
|
|
u8 *opblk_va;
|
|
dma_addr_t opblk_pa;
|
|
u8 *resblk_va;
|
|
dma_addr_t resblk_pa;
|
|
|
|
int size;
|
|
|
|
/* 8 bytes for header */
|
|
resblk_va = dma_alloc_coherent(&pHba->pDev->dev,
|
|
sizeof(u8) * (8 + buflen), &resblk_pa, GFP_KERNEL);
|
|
if (resblk_va == NULL) {
|
|
printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
opblk_va = dma_alloc_coherent(&pHba->pDev->dev,
|
|
sizeof(opblk), &opblk_pa, GFP_KERNEL);
|
|
if (opblk_va == NULL) {
|
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
|
|
resblk_va, resblk_pa);
|
|
printk(KERN_CRIT "%s: query operation failed; Out of memory.\n",
|
|
pHba->name);
|
|
return -ENOMEM;
|
|
}
|
|
if (field == -1) /* whole group */
|
|
opblk[4] = -1;
|
|
|
|
memcpy(opblk_va, opblk, sizeof(opblk));
|
|
size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid,
|
|
opblk_va, opblk_pa, sizeof(opblk),
|
|
resblk_va, resblk_pa, sizeof(u8)*(8+buflen));
|
|
dma_free_coherent(&pHba->pDev->dev, sizeof(opblk), opblk_va, opblk_pa);
|
|
if (size == -ETIME) {
|
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
|
|
resblk_va, resblk_pa);
|
|
printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name);
|
|
return -ETIME;
|
|
} else if (size == -EINTR) {
|
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
|
|
resblk_va, resblk_pa);
|
|
printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name);
|
|
return -EINTR;
|
|
}
|
|
|
|
memcpy(buf, resblk_va+8, buflen); /* cut off header */
|
|
|
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
|
|
resblk_va, resblk_pa);
|
|
if (size < 0)
|
|
return size;
|
|
|
|
return buflen;
|
|
}
|
|
|
|
|
|
/* Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
|
|
*
|
|
* This function can be used for all UtilParamsGet/Set operations.
|
|
* The OperationBlock is given in opblk-buffer,
|
|
* and results are returned in resblk-buffer.
|
|
* Note that the minimum sized resblk is 8 bytes and contains
|
|
* ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
|
|
*/
|
|
static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid,
|
|
void *opblk_va, dma_addr_t opblk_pa, int oplen,
|
|
void *resblk_va, dma_addr_t resblk_pa, int reslen)
|
|
{
|
|
u32 msg[9];
|
|
u32 *res = (u32 *)resblk_va;
|
|
int wait_status;
|
|
|
|
msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5;
|
|
msg[1] = cmd << 24 | HOST_TID << 12 | tid;
|
|
msg[2] = 0;
|
|
msg[3] = 0;
|
|
msg[4] = 0;
|
|
msg[5] = 0x54000000 | oplen; /* OperationBlock */
|
|
msg[6] = (u32)opblk_pa;
|
|
msg[7] = 0xD0000000 | reslen; /* ResultBlock */
|
|
msg[8] = (u32)resblk_pa;
|
|
|
|
if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) {
|
|
printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk_va);
|
|
return wait_status; /* -DetailedStatus */
|
|
}
|
|
|
|
if (res[1]&0x00FF0000) { /* BlockStatus != SUCCESS */
|
|
printk(KERN_WARNING "%s: %s - Error:\n ErrorInfoSize = 0x%02x, "
|
|
"BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
|
|
pHba->name,
|
|
(cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
|
|
: "PARAMS_GET",
|
|
res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF);
|
|
return -((res[1] >> 16) & 0xFF); /* -BlockStatus */
|
|
}
|
|
|
|
return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */
|
|
}
|
|
|
|
|
|
static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba)
|
|
{
|
|
u32 msg[4];
|
|
int ret;
|
|
|
|
adpt_i2o_status_get(pHba);
|
|
|
|
/* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */
|
|
|
|
if((pHba->status_block->iop_state != ADAPTER_STATE_READY) &&
|
|
(pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){
|
|
return 0;
|
|
}
|
|
|
|
msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
|
|
msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID;
|
|
msg[2] = 0;
|
|
msg[3] = 0;
|
|
|
|
if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
|
|
printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n",
|
|
pHba->unit, -ret);
|
|
} else {
|
|
printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit);
|
|
}
|
|
|
|
adpt_i2o_status_get(pHba);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Enable IOP. Allows the IOP to resume external operations.
|
|
*/
|
|
static int adpt_i2o_enable_hba(adpt_hba* pHba)
|
|
{
|
|
u32 msg[4];
|
|
int ret;
|
|
|
|
adpt_i2o_status_get(pHba);
|
|
if(!pHba->status_block){
|
|
return -ENOMEM;
|
|
}
|
|
/* Enable only allowed on READY state */
|
|
if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL)
|
|
return 0;
|
|
|
|
if(pHba->status_block->iop_state != ADAPTER_STATE_READY)
|
|
return -EINVAL;
|
|
|
|
msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
|
|
msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID;
|
|
msg[2]= 0;
|
|
msg[3]= 0;
|
|
|
|
if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
|
|
printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n",
|
|
pHba->name, ret);
|
|
} else {
|
|
PDEBUG("%s: Enabled.\n", pHba->name);
|
|
}
|
|
|
|
adpt_i2o_status_get(pHba);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int adpt_i2o_systab_send(adpt_hba* pHba)
|
|
{
|
|
u32 msg[12];
|
|
int ret;
|
|
|
|
msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6;
|
|
msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID;
|
|
msg[2] = 0;
|
|
msg[3] = 0;
|
|
msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */
|
|
msg[5] = 0; /* Segment 0 */
|
|
|
|
/*
|
|
* Provide three SGL-elements:
|
|
* System table (SysTab), Private memory space declaration and
|
|
* Private i/o space declaration
|
|
*/
|
|
msg[6] = 0x54000000 | sys_tbl_len;
|
|
msg[7] = (u32)sys_tbl_pa;
|
|
msg[8] = 0x54000000 | 0;
|
|
msg[9] = 0;
|
|
msg[10] = 0xD4000000 | 0;
|
|
msg[11] = 0;
|
|
|
|
if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) {
|
|
printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n",
|
|
pHba->name, ret);
|
|
}
|
|
#ifdef DEBUG
|
|
else {
|
|
PINFO("%s: SysTab set.\n", pHba->name);
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*============================================================================
|
|
*
|
|
*============================================================================
|
|
*/
|
|
|
|
|
|
#ifdef UARTDELAY
|
|
|
|
static static void adpt_delay(int millisec)
|
|
{
|
|
int i;
|
|
for (i = 0; i < millisec; i++) {
|
|
udelay(1000); /* delay for one millisecond */
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
static struct scsi_host_template driver_template = {
|
|
.module = THIS_MODULE,
|
|
.name = "dpt_i2o",
|
|
.proc_name = "dpt_i2o",
|
|
.show_info = adpt_show_info,
|
|
.info = adpt_info,
|
|
.queuecommand = adpt_queue,
|
|
.eh_abort_handler = adpt_abort,
|
|
.eh_device_reset_handler = adpt_device_reset,
|
|
.eh_bus_reset_handler = adpt_bus_reset,
|
|
.eh_host_reset_handler = adpt_reset,
|
|
.bios_param = adpt_bios_param,
|
|
.slave_configure = adpt_slave_configure,
|
|
.can_queue = MAX_TO_IOP_MESSAGES,
|
|
.this_id = 7,
|
|
.use_clustering = ENABLE_CLUSTERING,
|
|
};
|
|
|
|
static int __init adpt_init(void)
|
|
{
|
|
int error;
|
|
adpt_hba *pHba, *next;
|
|
|
|
printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n");
|
|
|
|
error = adpt_detect(&driver_template);
|
|
if (error < 0)
|
|
return error;
|
|
if (hba_chain == NULL)
|
|
return -ENODEV;
|
|
|
|
for (pHba = hba_chain; pHba; pHba = pHba->next) {
|
|
error = scsi_add_host(pHba->host, &pHba->pDev->dev);
|
|
if (error)
|
|
goto fail;
|
|
scsi_scan_host(pHba->host);
|
|
}
|
|
return 0;
|
|
fail:
|
|
for (pHba = hba_chain; pHba; pHba = next) {
|
|
next = pHba->next;
|
|
scsi_remove_host(pHba->host);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static void __exit adpt_exit(void)
|
|
{
|
|
adpt_hba *pHba, *next;
|
|
|
|
for (pHba = hba_chain; pHba; pHba = next) {
|
|
next = pHba->next;
|
|
adpt_release(pHba);
|
|
}
|
|
}
|
|
|
|
module_init(adpt_init);
|
|
module_exit(adpt_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|