[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 <matthew@wil.cx>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 2e2362d..502732a 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -173,20 +173,20 @@
};
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 @@
}
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 @@
#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 @@
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 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_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 @@
#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 @@
.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 fd79068..0892f6c 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 @@
#define DPT_DRIVER_NAME "Adaptec I2O RAID"
-#ifndef HOSTS_C
-
#include "dpt/sys_info.h"
#include <linux/wait.h>
#include "dpt/dpti_i2o.h"
@@ -289,7 +285,7 @@
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_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 @@
#define FW_DEBUG_BLED_OFFSET 8
#define FW_DEBUG_FLAGS_NO_HEADERS_B 0x01
-#endif /* !HOSTS_C */
#endif /* _DPT_H */
