From 55d9fcf57ba5ec427544fca7abc335cf3da78160 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Mon, 30 Jul 2007 15:19:18 -0600 Subject: [PATCH] [SCSI] dpt_i2o: convert to SCSI hotplug model - Delete refereces to HOSTS_C - Switch to module_init/module_exit instead of detect/release - Don't pass around the host template and rename it to adpt_template - Switch from scsi_register/scsi_unregister to scsi_host_alloc, scsi_add_host, scsi_scan_host and scsi_host_put. Signed-off-by: Matthew Wilcox Acked-by: "Salyzyn, Mark" Signed-off-by: James Bottomley --- drivers/scsi/dpt_i2o.c | 132 ++++++++++++++++++++++------------------- drivers/scsi/dpti.h | 9 +-- 2 files changed, 73 insertions(+), 68 deletions(-) diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 2e2362d787..502732ac27 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -173,20 +173,20 @@ static struct pci_device_id dptids[] = { }; MODULE_DEVICE_TABLE(pci,dptids); -static int adpt_detect(struct scsi_host_template* sht) +static void adpt_exit(void); + +static int adpt_detect(void) { struct pci_dev *pDev = NULL; adpt_hba* pHba; - adpt_init(); - PINFO("Detecting Adaptec I2O RAID controllers...\n"); /* search for all Adatpec I2O RAID cards */ while ((pDev = pci_get_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) { if(pDev->device == PCI_DPT_DEVICE_ID || pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){ - if(adpt_install_hba(sht, pDev) ){ + if(adpt_install_hba(pDev) ){ PERROR("Could not Init an I2O RAID device\n"); PERROR("Will not try to detect others.\n"); return hba_count-1; @@ -248,34 +248,33 @@ rebuild_sys_tab: } for (pHba = hba_chain; pHba; pHba = pHba->next) { - if( adpt_scsi_register(pHba,sht) < 0){ + if (adpt_scsi_register(pHba) < 0) { adpt_i2o_delete_hba(pHba); continue; } pHba->initialized = TRUE; pHba->state &= ~DPTI_STATE_RESET; + scsi_scan_host(pHba->host); } // Register our control device node // nodes will need to be created in /dev to access this // the nodes can not be created from within the driver if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) { - adpt_i2o_sys_shutdown(); + adpt_exit(); return 0; } return hba_count; } -/* - * scsi_unregister will be called AFTER we return. - */ -static int adpt_release(struct Scsi_Host *host) +static int adpt_release(adpt_hba *pHba) { - adpt_hba* pHba = (adpt_hba*) host->hostdata[0]; + struct Scsi_Host *shost = pHba->host; + scsi_remove_host(shost); // adpt_i2o_quiesce_hba(pHba); adpt_i2o_delete_hba(pHba); - scsi_unregister(host); + scsi_host_put(shost); return 0; } @@ -882,7 +881,7 @@ static int adpt_reboot_event(struct notifier_block *n, ulong code, void *p) #endif -static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) +static int adpt_install_hba(struct pci_dev* pDev) { adpt_hba* pHba = NULL; @@ -1031,8 +1030,6 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba) mutex_lock(&adpt_configuration_lock); - // scsi_unregister calls our adpt_release which - // does a quiese if(pHba->host){ free_irq(pHba->host->irq, pHba); } @@ -1084,17 +1081,6 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba) } -static int adpt_init(void) -{ - printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n"); -#ifdef REBOOT_NOTIFIER - register_reboot_notifier(&adpt_reboot_notifier); -#endif - - return 0; -} - - static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun) { struct adpt_device* d; @@ -2180,37 +2166,6 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_d } -static s32 adpt_scsi_register(adpt_hba* pHba,struct scsi_host_template * sht) -{ - struct Scsi_Host *host = NULL; - - host = scsi_register(sht, sizeof(adpt_hba*)); - if (host == NULL) { - printk ("%s: scsi_register 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 = (uint) pHba; - host->sg_tablesize = pHba->sg_tablesize; - host->can_queue = pHba->post_fifo_size; - - return 0; -} - - static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd) { adpt_hba* pHba; @@ -3329,12 +3284,10 @@ static static void adpt_delay(int millisec) #endif -static struct scsi_host_template driver_template = { +static struct scsi_host_template adpt_template = { .name = "dpt_i2o", .proc_name = "dpt_i2o", .proc_info = adpt_proc_info, - .detect = adpt_detect, - .release = adpt_release, .info = adpt_info, .queuecommand = adpt_queue, .eh_abort_handler = adpt_abort, @@ -3348,5 +3301,62 @@ static struct scsi_host_template driver_template = { .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, }; -#include "scsi_module.c" + +static s32 adpt_scsi_register(adpt_hba* pHba) +{ + struct Scsi_Host *host; + + host = scsi_host_alloc(&adpt_template, 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 = (uint) pHba; + host->sg_tablesize = pHba->sg_tablesize; + host->can_queue = pHba->post_fifo_size; + + if (scsi_add_host(host, &pHba->pDev->dev)) { + scsi_host_put(host); + return -1; + } + + return 0; +} + +static int __init adpt_init(void) +{ + int count; + + printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n"); +#ifdef REBOOT_NOTIFIER + register_reboot_notifier(&adpt_reboot_notifier); +#endif + + count = adpt_detect(); + + return count > 0 ? 0 : -ENODEV; +} + +static void __exit adpt_exit(void) +{ + while (hba_chain) + adpt_release(hba_chain); +} + +module_init(adpt_init); +module_exit(adpt_exit); MODULE_LICENSE("GPL"); diff --git a/drivers/scsi/dpti.h b/drivers/scsi/dpti.h index fd79068c58..0892f6c703 100644 --- a/drivers/scsi/dpti.h +++ b/drivers/scsi/dpti.h @@ -28,11 +28,9 @@ * SCSI interface function Prototypes */ -static int adpt_detect(struct scsi_host_template * sht); static int adpt_queue(struct scsi_cmnd * cmd, void (*cmdcomplete) (struct scsi_cmnd *)); static int adpt_abort(struct scsi_cmnd * cmd); static int adpt_reset(struct scsi_cmnd* cmd); -static int adpt_release(struct Scsi_Host *host); static int adpt_slave_configure(struct scsi_device *); static const char *adpt_info(struct Scsi_Host *pSHost); @@ -49,8 +47,6 @@ static int adpt_device_reset(struct scsi_cmnd* cmd); #define DPT_DRIVER_NAME "Adaptec I2O RAID" -#ifndef HOSTS_C - #include "dpt/sys_info.h" #include #include "dpt/dpti_i2o.h" @@ -289,7 +285,7 @@ static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba); static s32 adpt_i2o_hrt_get(adpt_hba* pHba); static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* dptdevice); static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd); -static s32 adpt_scsi_register(adpt_hba* pHba,struct scsi_host_template * sht); +static s32 adpt_scsi_register(adpt_hba* pHba); static s32 adpt_hba_reset(adpt_hba* pHba); static s32 adpt_i2o_reset_hba(adpt_hba* pHba); static s32 adpt_rescan(adpt_hba* pHba); @@ -299,7 +295,7 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba); static void adpt_inquiry(adpt_hba* pHba); static void adpt_fail_posted_scbs(adpt_hba* pHba); static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u32 lun); -static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) ; +static int adpt_install_hba(struct pci_dev* pDev) ; static int adpt_i2o_online_hba(adpt_hba* pHba); static void adpt_i2o_post_wait_complete(u32, int); static int adpt_i2o_systab_send(adpt_hba* pHba); @@ -343,5 +339,4 @@ static void adpt_i386_info(sysInfo_S* si); #define FW_DEBUG_BLED_OFFSET 8 #define FW_DEBUG_FLAGS_NO_HEADERS_B 0x01 -#endif /* !HOSTS_C */ #endif /* _DPT_H */ -- 2.39.5