# Makefile for the S/390 specific device drivers
#
-zfcp-objs := zfcp_aux.o zfcp_ccw.o zfcp_cfdc.o zfcp_dbf.o zfcp_erp.o \
+zfcp-objs := zfcp_aux.o zfcp_ccw.o zfcp_dbf.o zfcp_erp.o \
zfcp_fc.o zfcp_fsf.o zfcp_qdio.o zfcp_scsi.o zfcp_sysfs.o \
zfcp_unit.o
scsi_transport_reserve_device(zfcp_scsi_transport_template,
sizeof(struct zfcp_scsi_dev));
-
- retval = misc_register(&zfcp_cfdc_misc);
- if (retval) {
- pr_err("Registering the misc device zfcp_cfdc failed\n");
- goto out_misc;
- }
-
retval = ccw_driver_register(&zfcp_ccw_driver);
if (retval) {
pr_err("The zfcp device driver could not register with "
return 0;
out_ccw_register:
- misc_deregister(&zfcp_cfdc_misc);
-out_misc:
fc_release_transport(zfcp_scsi_transport_template);
out_transport:
kmem_cache_destroy(zfcp_fc_req_cache);
static void __exit zfcp_module_exit(void)
{
ccw_driver_unregister(&zfcp_ccw_driver);
- misc_deregister(&zfcp_cfdc_misc);
fc_release_transport(zfcp_scsi_transport_template);
kmem_cache_destroy(zfcp_fc_req_cache);
kmem_cache_destroy(zfcp_fsf_qtcb_cache);
};
MODULE_DEVICE_TABLE(ccw, zfcp_ccw_device_id);
-/**
- * zfcp_ccw_priv_sch - check if subchannel is privileged
- * @adapter: Adapter/Subchannel to check
- */
-int zfcp_ccw_priv_sch(struct zfcp_adapter *adapter)
-{
- return adapter->ccw_device->id.dev_model == ZFCP_MODEL_PRIV;
-}
-
/**
* zfcp_ccw_probe - probe function of zfcp driver
* @cdev: pointer to belonging ccw device
+++ /dev/null
-/*
- * zfcp device driver
- *
- * Userspace interface for accessing the
- * Access Control Lists / Control File Data Channel;
- * handling of response code and states for ports and LUNs.
- *
- * Copyright IBM Corp. 2008, 2010
- */
-
-#define KMSG_COMPONENT "zfcp"
-#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
-
-#include <linux/compat.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/miscdevice.h>
-#include <asm/compat.h>
-#include <asm/ccwdev.h>
-#include "zfcp_def.h"
-#include "zfcp_ext.h"
-#include "zfcp_fsf.h"
-
-#define ZFCP_CFDC_CMND_DOWNLOAD_NORMAL 0x00010001
-#define ZFCP_CFDC_CMND_DOWNLOAD_FORCE 0x00010101
-#define ZFCP_CFDC_CMND_FULL_ACCESS 0x00000201
-#define ZFCP_CFDC_CMND_RESTRICTED_ACCESS 0x00000401
-#define ZFCP_CFDC_CMND_UPLOAD 0x00010002
-
-#define ZFCP_CFDC_DOWNLOAD 0x00000001
-#define ZFCP_CFDC_UPLOAD 0x00000002
-#define ZFCP_CFDC_WITH_CONTROL_FILE 0x00010000
-
-#define ZFCP_CFDC_IOC_MAGIC 0xDD
-#define ZFCP_CFDC_IOC \
- _IOWR(ZFCP_CFDC_IOC_MAGIC, 0, struct zfcp_cfdc_data)
-
-/**
- * struct zfcp_cfdc_data - data for ioctl cfdc interface
- * @signature: request signature
- * @devno: FCP adapter device number
- * @command: command code
- * @fsf_status: returns status of FSF command to userspace
- * @fsf_status_qual: returned to userspace
- * @payloads: access conflicts list
- * @control_file: access control table
- */
-struct zfcp_cfdc_data {
- u32 signature;
- u32 devno;
- u32 command;
- u32 fsf_status;
- u8 fsf_status_qual[FSF_STATUS_QUALIFIER_SIZE];
- u8 payloads[256];
- u8 control_file[0];
-};
-
-static int zfcp_cfdc_copy_from_user(struct scatterlist *sg,
- void __user *user_buffer)
-{
- unsigned int length;
- unsigned int size = ZFCP_CFDC_MAX_SIZE;
-
- while (size) {
- length = min((unsigned int)size, sg->length);
- if (copy_from_user(sg_virt(sg++), user_buffer, length))
- return -EFAULT;
- user_buffer += length;
- size -= length;
- }
- return 0;
-}
-
-static int zfcp_cfdc_copy_to_user(void __user *user_buffer,
- struct scatterlist *sg)
-{
- unsigned int length;
- unsigned int size = ZFCP_CFDC_MAX_SIZE;
-
- while (size) {
- length = min((unsigned int) size, sg->length);
- if (copy_to_user(user_buffer, sg_virt(sg++), length))
- return -EFAULT;
- user_buffer += length;
- size -= length;
- }
- return 0;
-}
-
-static struct zfcp_adapter *zfcp_cfdc_get_adapter(u32 devno)
-{
- char busid[9];
- struct ccw_device *cdev;
- struct zfcp_adapter *adapter;
-
- snprintf(busid, sizeof(busid), "0.0.%04x", devno);
- cdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
- if (!cdev)
- return NULL;
-
- adapter = zfcp_ccw_adapter_by_cdev(cdev);
-
- put_device(&cdev->dev);
- return adapter;
-}
-
-static int zfcp_cfdc_set_fsf(struct zfcp_fsf_cfdc *fsf_cfdc, int command)
-{
- switch (command) {
- case ZFCP_CFDC_CMND_DOWNLOAD_NORMAL:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_NORMAL_MODE;
- break;
- case ZFCP_CFDC_CMND_DOWNLOAD_FORCE:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_FORCE;
- break;
- case ZFCP_CFDC_CMND_FULL_ACCESS:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_FULL_ACCESS;
- break;
- case ZFCP_CFDC_CMND_RESTRICTED_ACCESS:
- fsf_cfdc->command = FSF_QTCB_DOWNLOAD_CONTROL_FILE;
- fsf_cfdc->option = FSF_CFDC_OPTION_RESTRICTED_ACCESS;
- break;
- case ZFCP_CFDC_CMND_UPLOAD:
- fsf_cfdc->command = FSF_QTCB_UPLOAD_CONTROL_FILE;
- fsf_cfdc->option = 0;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int zfcp_cfdc_sg_setup(int command, struct scatterlist *sg,
- u8 __user *control_file)
-{
- int retval;
- retval = zfcp_sg_setup_table(sg, ZFCP_CFDC_PAGES);
- if (retval)
- return retval;
-
- sg[ZFCP_CFDC_PAGES - 1].length = ZFCP_CFDC_MAX_SIZE % PAGE_SIZE;
-
- if (command & ZFCP_CFDC_WITH_CONTROL_FILE &&
- command & ZFCP_CFDC_DOWNLOAD) {
- retval = zfcp_cfdc_copy_from_user(sg, control_file);
- if (retval) {
- zfcp_sg_free_table(sg, ZFCP_CFDC_PAGES);
- return -EFAULT;
- }
- }
-
- return 0;
-}
-
-static void zfcp_cfdc_req_to_sense(struct zfcp_cfdc_data *data,
- struct zfcp_fsf_req *req)
-{
- data->fsf_status = req->qtcb->header.fsf_status;
- memcpy(&data->fsf_status_qual, &req->qtcb->header.fsf_status_qual,
- sizeof(union fsf_status_qual));
- memcpy(&data->payloads, &req->qtcb->bottom.support.els,
- sizeof(req->qtcb->bottom.support.els));
-}
-
-static long zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command,
- unsigned long arg)
-{
- struct zfcp_cfdc_data *data;
- struct zfcp_cfdc_data __user *data_user;
- struct zfcp_adapter *adapter;
- struct zfcp_fsf_req *req;
- struct zfcp_fsf_cfdc *fsf_cfdc;
- int retval;
-
- if (command != ZFCP_CFDC_IOC)
- return -ENOTTY;
-
- if (is_compat_task())
- data_user = compat_ptr(arg);
- else
- data_user = (void __user *)arg;
-
- if (!data_user)
- return -EINVAL;
-
- fsf_cfdc = kmalloc(sizeof(struct zfcp_fsf_cfdc), GFP_KERNEL);
- if (!fsf_cfdc)
- return -ENOMEM;
-
- data = memdup_user(data_user, sizeof(*data_user));
- if (IS_ERR(data)) {
- retval = PTR_ERR(data);
- goto no_mem_sense;
- }
-
- if (data->signature != 0xCFDCACDF) {
- retval = -EINVAL;
- goto free_buffer;
- }
-
- retval = zfcp_cfdc_set_fsf(fsf_cfdc, data->command);
-
- adapter = zfcp_cfdc_get_adapter(data->devno);
- if (!adapter) {
- retval = -ENXIO;
- goto free_buffer;
- }
-
- retval = zfcp_cfdc_sg_setup(data->command, fsf_cfdc->sg,
- data_user->control_file);
- if (retval)
- goto adapter_put;
- req = zfcp_fsf_control_file(adapter, fsf_cfdc);
- if (IS_ERR(req)) {
- retval = PTR_ERR(req);
- goto free_sg;
- }
-
- if (req->status & ZFCP_STATUS_FSFREQ_ERROR) {
- retval = -ENXIO;
- goto free_fsf;
- }
-
- zfcp_cfdc_req_to_sense(data, req);
- retval = copy_to_user(data_user, data, sizeof(*data_user));
- if (retval) {
- retval = -EFAULT;
- goto free_fsf;
- }
-
- if (data->command & ZFCP_CFDC_UPLOAD)
- retval = zfcp_cfdc_copy_to_user(&data_user->control_file,
- fsf_cfdc->sg);
-
- free_fsf:
- zfcp_fsf_req_free(req);
- free_sg:
- zfcp_sg_free_table(fsf_cfdc->sg, ZFCP_CFDC_PAGES);
- adapter_put:
- zfcp_ccw_adapter_put(adapter);
- free_buffer:
- kfree(data);
- no_mem_sense:
- kfree(fsf_cfdc);
- return retval;
-}
-
-static const struct file_operations zfcp_cfdc_fops = {
- .owner = THIS_MODULE,
- .open = nonseekable_open,
- .unlocked_ioctl = zfcp_cfdc_dev_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = zfcp_cfdc_dev_ioctl,
-#endif
- .llseek = no_llseek,
-};
-
-struct miscdevice zfcp_cfdc_misc = {
- .minor = MISC_DYNAMIC_MINOR,
- .name = "zfcp_cfdc",
- .fops = &zfcp_cfdc_fops,
-};
-
-/**
- * zfcp_cfdc_adapter_access_changed - Process change in adapter ACT
- * @adapter: Adapter where the Access Control Table (ACT) changed
- *
- * After a change in the adapter ACT, check if access to any
- * previously denied resources is now possible.
- */
-void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *adapter)
-{
- unsigned long flags;
- struct zfcp_port *port;
- struct scsi_device *sdev;
- struct zfcp_scsi_dev *zfcp_sdev;
- int status;
-
- if (adapter->connection_features & FSF_FEATURE_NPIV_MODE)
- return;
-
- read_lock_irqsave(&adapter->port_list_lock, flags);
- list_for_each_entry(port, &adapter->port_list, list) {
- status = atomic_read(&port->status);
- if ((status & ZFCP_STATUS_COMMON_ACCESS_DENIED) ||
- (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
- zfcp_erp_port_reopen(port,
- ZFCP_STATUS_COMMON_ERP_FAILED,
- "cfaac_1");
- }
- read_unlock_irqrestore(&adapter->port_list_lock, flags);
-
- shost_for_each_device(sdev, adapter->scsi_host) {
- zfcp_sdev = sdev_to_zfcp(sdev);
- status = atomic_read(&zfcp_sdev->status);
- if ((status & ZFCP_STATUS_COMMON_ACCESS_DENIED) ||
- (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
- zfcp_erp_lun_reopen(sdev,
- ZFCP_STATUS_COMMON_ERP_FAILED,
- "cfaac_2");
- }
-}
-
-static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table)
-{
- u16 subtable = table >> 16;
- u16 rule = table & 0xffff;
- const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" };
-
- if (subtable && subtable < ARRAY_SIZE(act_type))
- dev_warn(&adapter->ccw_device->dev,
- "Access denied according to ACT rule type %s, "
- "rule %d\n", act_type[subtable], rule);
-}
-
-/**
- * zfcp_cfdc_port_denied - Process "access denied" for port
- * @port: The port where the access has been denied
- * @qual: The FSF status qualifier for the access denied FSF status
- */
-void zfcp_cfdc_port_denied(struct zfcp_port *port,
- union fsf_status_qual *qual)
-{
- dev_warn(&port->adapter->ccw_device->dev,
- "Access denied to port 0x%016Lx\n",
- (unsigned long long)port->wwpn);
-
- zfcp_act_eval_err(port->adapter, qual->halfword[0]);
- zfcp_act_eval_err(port->adapter, qual->halfword[1]);
- zfcp_erp_set_port_status(port,
- ZFCP_STATUS_COMMON_ERP_FAILED |
- ZFCP_STATUS_COMMON_ACCESS_DENIED);
-}
-
-/**
- * zfcp_cfdc_lun_denied - Process "access denied" for LUN
- * @sdev: The SCSI device / LUN where the access has been denied
- * @qual: The FSF status qualifier for the access denied FSF status
- */
-void zfcp_cfdc_lun_denied(struct scsi_device *sdev,
- union fsf_status_qual *qual)
-{
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
-
- dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
- "Access denied to LUN 0x%016Lx on port 0x%016Lx\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->halfword[0]);
- zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->halfword[1]);
- zfcp_erp_set_lun_status(sdev,
- ZFCP_STATUS_COMMON_ERP_FAILED |
- ZFCP_STATUS_COMMON_ACCESS_DENIED);
-
- atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
- atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
-}
-
-/**
- * zfcp_cfdc_lun_shrng_vltn - Evaluate LUN sharing violation status
- * @sdev: The LUN / SCSI device where sharing violation occurred
- * @qual: The FSF status qualifier from the LUN sharing violation
- */
-void zfcp_cfdc_lun_shrng_vltn(struct scsi_device *sdev,
- union fsf_status_qual *qual)
-{
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
-
- if (qual->word[0])
- dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
- "LUN 0x%Lx on port 0x%Lx is already in "
- "use by CSS%d, MIF Image ID %x\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn,
- qual->fsf_queue_designator.cssid,
- qual->fsf_queue_designator.hla);
- else
- zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->word[2]);
-
- zfcp_erp_set_lun_status(sdev,
- ZFCP_STATUS_COMMON_ERP_FAILED |
- ZFCP_STATUS_COMMON_ACCESS_DENIED);
- atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
- atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
-}
-
-/**
- * zfcp_cfdc_open_lun_eval - Eval access ctrl. status for successful "open lun"
- * @sdev: The SCSI device / LUN where to evaluate the status
- * @bottom: The qtcb bottom with the status from the "open lun"
- *
- * Returns: 0 if LUN is usable, -EACCES if the access control table
- * reports an unsupported configuration.
- */
-int zfcp_cfdc_open_lun_eval(struct scsi_device *sdev,
- struct fsf_qtcb_bottom_support *bottom)
-{
- int shared, rw;
- struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
- struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
-
- if ((adapter->connection_features & FSF_FEATURE_NPIV_MODE) ||
- !(adapter->adapter_features & FSF_FEATURE_LUN_SHARING) ||
- zfcp_ccw_priv_sch(adapter))
- return 0;
-
- shared = !(bottom->lun_access_info & FSF_UNIT_ACCESS_EXCLUSIVE);
- rw = (bottom->lun_access_info & FSF_UNIT_ACCESS_OUTBOUND_TRANSFER);
-
- if (shared)
- atomic_set_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
-
- if (!rw) {
- atomic_set_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
- dev_info(&adapter->ccw_device->dev, "SCSI device at LUN "
- "0x%016Lx on port 0x%016Lx opened read-only\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- }
-
- if (!shared && !rw) {
- dev_err(&adapter->ccw_device->dev, "Exclusive read-only access "
- "not supported (LUN 0x%016Lx, port 0x%016Lx)\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED);
- zfcp_erp_lun_shutdown(sdev, 0, "fsouh_6");
- return -EACCES;
- }
-
- if (shared && rw) {
- dev_err(&adapter->ccw_device->dev,
- "Shared read-write access not supported "
- "(LUN 0x%016Lx, port 0x%016Lx)\n",
- zfcp_scsi_dev_lun(sdev),
- (unsigned long long)zfcp_sdev->port->wwpn);
- zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED);
- zfcp_erp_lun_shutdown(sdev, 0, "fsosh_8");
- return -EACCES;
- }
-
- return 0;
-}
#define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001
#define ZFCP_STATUS_PORT_LINK_TEST 0x00000002
-/* logical unit status */
-#define ZFCP_STATUS_LUN_SHARED 0x00000004
-#define ZFCP_STATUS_LUN_READONLY 0x00000008
-
/* FSF request status (this does not have a common part) */
#define ZFCP_STATUS_FSFREQ_ERROR 0x00000008
#define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010
{
struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
- atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
- ZFCP_STATUS_LUN_SHARED | ZFCP_STATUS_LUN_READONLY,
+ atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED,
&zfcp_sdev->status);
}
extern void zfcp_adapter_unregister(struct zfcp_adapter *);
/* zfcp_ccw.c */
-extern int zfcp_ccw_priv_sch(struct zfcp_adapter *);
extern struct ccw_driver zfcp_ccw_driver;
extern struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *);
extern void zfcp_ccw_adapter_put(struct zfcp_adapter *);
-/* zfcp_cfdc.c */
-extern struct miscdevice zfcp_cfdc_misc;
-extern void zfcp_cfdc_port_denied(struct zfcp_port *, union fsf_status_qual *);
-extern void zfcp_cfdc_lun_denied(struct scsi_device *, union fsf_status_qual *);
-extern void zfcp_cfdc_lun_shrng_vltn(struct scsi_device *,
- union fsf_status_qual *);
-extern int zfcp_cfdc_open_lun_eval(struct scsi_device *,
- struct fsf_qtcb_bottom_support *);
-extern void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *);
-
-
/* zfcp_dbf.c */
extern int zfcp_dbf_adapter_register(struct zfcp_adapter *);
extern void zfcp_dbf_adapter_unregister(struct zfcp_adapter *);
extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *);
extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *,
struct fsf_qtcb_bottom_port *);
-extern struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *,
- struct zfcp_fsf_cfdc *);
extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
extern int zfcp_fsf_status_read(struct zfcp_qdio *);
extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
break;
case FSF_STATUS_READ_NOTIFICATION_LOST:
- if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED)
- zfcp_cfdc_adapter_access_changed(adapter);
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
zfcp_fc_conditional_port_scan(adapter);
break;
- case FSF_STATUS_READ_CFDC_UPDATED:
- zfcp_cfdc_adapter_access_changed(adapter);
- break;
case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
adapter->adapter_features = sr_buf->payload.word[0];
break;
break;
}
break;
- case FSF_ACCESS_DENIED:
- break;
case FSF_PORT_BOXED:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
{
struct zfcp_fsf_ct_els *send_els = req->data;
- struct zfcp_port *port = send_els->port;
struct fsf_qtcb_header *header = &req->qtcb->header;
send_els->status = -EINVAL;
case FSF_REQUEST_SIZE_TOO_LARGE:
case FSF_RESPONSE_SIZE_TOO_LARGE:
break;
- case FSF_ACCESS_DENIED:
- if (port) {
- zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- }
- break;
case FSF_SBAL_MISMATCH:
/* should never occur, avoided in zfcp_fsf_send_els */
/* fall through */
zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
req->qtcb->bottom.config.feature_selection =
- FSF_FEATURE_CFDC |
- FSF_FEATURE_LUN_SHARING |
FSF_FEATURE_NOTIFICATION_LOST |
FSF_FEATURE_UPDATE_ALERT;
req->erp_action = erp_action;
req->handler = zfcp_fsf_exchange_config_data_handler;
req->qtcb->bottom.config.feature_selection =
- FSF_FEATURE_CFDC |
- FSF_FEATURE_LUN_SHARING |
FSF_FEATURE_NOTIFICATION_LOST |
FSF_FEATURE_UPDATE_ALERT;
switch (header->fsf_status) {
case FSF_PORT_ALREADY_OPEN:
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- break;
case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
dev_warn(&req->adapter->ccw_device->dev,
"Not enough FCP adapter resources to open "
/* fall through */
case FSF_ADAPTER_STATUS_AVAILABLE:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- /* fall through */
- case FSF_ACCESS_DENIED:
wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE;
break;
case FSF_GOOD:
zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1");
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
- break;
case FSF_PORT_BOXED:
/* can't use generic zfcp_erp_modify_port_status because
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
struct scsi_device *sdev = req->data;
struct zfcp_scsi_dev *zfcp_sdev;
struct fsf_qtcb_header *header = &req->qtcb->header;
- struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support;
+ union fsf_status_qual *qual = &header->fsf_status_qual;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
return;
zfcp_sdev = sdev_to_zfcp(sdev);
atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
- ZFCP_STATUS_COMMON_ACCESS_BOXED |
- ZFCP_STATUS_LUN_SHARED |
- ZFCP_STATUS_LUN_READONLY,
+ ZFCP_STATUS_COMMON_ACCESS_BOXED,
&zfcp_sdev->status);
switch (header->fsf_status) {
/* fall through */
case FSF_LUN_ALREADY_OPEN:
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- break;
case FSF_PORT_BOXED:
zfcp_erp_set_port_status(zfcp_sdev->port,
ZFCP_STATUS_COMMON_ACCESS_BOXED);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_SHARING_VIOLATION:
- zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual);
+ if (qual->word[0])
+ dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
+ "LUN 0x%Lx on port 0x%Lx is already in "
+ "use by CSS%d, MIF Image ID %x\n",
+ zfcp_scsi_dev_lun(sdev),
+ (unsigned long long)zfcp_sdev->port->wwpn,
+ qual->fsf_queue_designator.cssid,
+ qual->fsf_queue_designator.hla);
+ zfcp_erp_set_lun_status(sdev,
+ ZFCP_STATUS_COMMON_ERP_FAILED |
+ ZFCP_STATUS_COMMON_ACCESS_DENIED);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED:
case FSF_GOOD:
zfcp_sdev->lun_handle = header->lun_handle;
atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status);
- zfcp_cfdc_open_lun_eval(sdev, bottom);
break;
}
}
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
zfcp_fsf_class_not_supp(req);
break;
- case FSF_ACCESS_DENIED:
- zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual);
- req->status |= ZFCP_STATUS_FSFREQ_ERROR;
- break;
case FSF_DIRECTION_INDICATOR_NOT_VALID:
dev_err(&req->adapter->ccw_device->dev,
"Incorrect direction %d, LUN 0x%016Lx on port "
return req;
}
-static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req)
-{
-}
-
-/**
- * zfcp_fsf_control_file - control file upload/download
- * @adapter: pointer to struct zfcp_adapter
- * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc
- * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise
- */
-struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
- struct zfcp_fsf_cfdc *fsf_cfdc)
-{
- struct zfcp_qdio *qdio = adapter->qdio;
- struct zfcp_fsf_req *req = NULL;
- struct fsf_qtcb_bottom_support *bottom;
- int retval = -EIO;
- u8 direction;
-
- if (!(adapter->adapter_features & FSF_FEATURE_CFDC))
- return ERR_PTR(-EOPNOTSUPP);
-
- switch (fsf_cfdc->command) {
- case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
- direction = SBAL_SFLAGS0_TYPE_WRITE;
- break;
- case FSF_QTCB_UPLOAD_CONTROL_FILE:
- direction = SBAL_SFLAGS0_TYPE_READ;
- break;
- default:
- return ERR_PTR(-EINVAL);
- }
-
- spin_lock_irq(&qdio->req_q_lock);
- if (zfcp_qdio_sbal_get(qdio))
- goto out;
-
- req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL);
- if (IS_ERR(req)) {
- retval = -EPERM;
- goto out;
- }
-
- req->handler = zfcp_fsf_control_file_handler;
-
- bottom = &req->qtcb->bottom.support;
- bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE;
- bottom->option = fsf_cfdc->option;
-
- retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg);
-
- if (retval ||
- (zfcp_qdio_real_bytes(fsf_cfdc->sg) != ZFCP_CFDC_MAX_SIZE)) {
- zfcp_fsf_req_free(req);
- retval = -EIO;
- goto out;
- }
- zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
- if (zfcp_adapter_multi_buffer_active(adapter))
- zfcp_qdio_set_scount(qdio, &req->qdio_req);
-
- zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
- retval = zfcp_fsf_req_send(req);
-out:
- spin_unlock_irq(&qdio->req_q_lock);
-
- if (!retval) {
- wait_for_completion(&req->completion);
- return req;
- }
- return ERR_PTR(retval);
-}
-
/**
* zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO
* @adapter: pointer to struct zfcp_adapter
#define FSF_CONFIG_COMMAND 0x00000003
#define FSF_PORT_COMMAND 0x00000004
-/* FSF control file upload/download operations' subtype and options */
-#define FSF_CFDC_OPERATION_SUBTYPE 0x00020001
-#define FSF_CFDC_OPTION_NORMAL_MODE 0x00000000
-#define FSF_CFDC_OPTION_FORCE 0x00000001
-#define FSF_CFDC_OPTION_FULL_ACCESS 0x00000002
-#define FSF_CFDC_OPTION_RESTRICTED_ACCESS 0x00000004
-
/* FSF protocol states */
#define FSF_PROT_GOOD 0x00000001
#define FSF_PROT_QTCB_VERSION_ERROR 0x00000010
#define FSF_HANDLE_MISMATCH 0x00000005
#define FSF_SERVICE_CLASS_NOT_SUPPORTED 0x00000006
#define FSF_FCPLUN_NOT_VALID 0x00000009
-#define FSF_ACCESS_DENIED 0x00000010
#define FSF_LUN_SHARING_VIOLATION 0x00000012
#define FSF_FCP_COMMAND_DOES_NOT_EXIST 0x00000022
#define FSF_DIRECTION_INDICATOR_NOT_VALID 0x00000030
#define FSF_STATUS_READ_LINK_DOWN 0x00000005
#define FSF_STATUS_READ_LINK_UP 0x00000006
#define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009
-#define FSF_STATUS_READ_CFDC_UPDATED 0x0000000A
#define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C
/* status subtypes for link down */
/* status subtypes for unsolicited status notification lost */
#define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001
-#define FSF_STATUS_READ_SUB_ACT_UPDATED 0x00000020
/* topologie that is detected by the adapter */
#define FSF_TOPO_P2P 0x00000001
#define FSF_QTCB_LOG_SIZE 1024
/* channel features */
-#define FSF_FEATURE_CFDC 0x00000002
-#define FSF_FEATURE_LUN_SHARING 0x00000004
#define FSF_FEATURE_NOTIFICATION_LOST 0x00000008
#define FSF_FEATURE_HBAAPI_MANAGEMENT 0x00000010
#define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020
/* option */
#define FSF_OPEN_LUN_SUPPRESS_BOXING 0x00000001
-/* open LUN access flags*/
-#define FSF_UNIT_ACCESS_EXCLUSIVE 0x02000000
-#define FSF_UNIT_ACCESS_OUTBOUND_TRANSFER 0x10000000
-
-/* FSF interface for CFDC */
-#define ZFCP_CFDC_MAX_SIZE 127 * 1024
-#define ZFCP_CFDC_PAGES PFN_UP(ZFCP_CFDC_MAX_SIZE)
-
-struct zfcp_fsf_cfdc {
- struct scatterlist sg[ZFCP_CFDC_PAGES];
- u32 command;
- u32 option;
-};
-
struct fsf_queue_designator {
u8 cssid;
u8 chpid;
ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n",
(zfcp_unit_sdev_status(unit) &
ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
-ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_shared, "%d\n",
- (zfcp_unit_sdev_status(unit) &
- ZFCP_STATUS_LUN_SHARED) != 0);
-ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_readonly, "%d\n",
- (zfcp_unit_sdev_status(unit) &
- ZFCP_STATUS_LUN_READONLY) != 0);
static ssize_t zfcp_sysfs_port_failed_show(struct device *dev,
struct device_attribute *attr,
&dev_attr_unit_in_recovery.attr,
&dev_attr_unit_status.attr,
&dev_attr_unit_access_denied.attr,
- &dev_attr_unit_access_shared.attr,
- &dev_attr_unit_access_readonly.attr,
NULL
};
static struct attribute_group zfcp_unit_attr_group = {
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff