staging: unisys: remove all proc entries from virtpci
This patch removes all proc entries from virtpci Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com> Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erik Arfvidson
Greg Kroah-Hartman
parent
e4c293c9a3
commit
5b796fe8fc
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@ -34,7 +34,6 @@
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/mod_devicetable.h>
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#include <linux/proc_fs.h>
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#include <linux/if_ether.h>
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#include <linux/version.h>
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#include "version.h"
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@ -100,18 +99,7 @@ static int virtpci_device_suspend(struct device *dev, pm_message_t state);
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static int virtpci_device_resume(struct device *dev);
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static int virtpci_device_probe(struct device *dev);
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static int virtpci_device_remove(struct device *dev);
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static ssize_t virt_proc_write(struct file *file, const char __user *buffer,
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size_t count, loff_t *ppos);
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static ssize_t info_proc_read(struct file *file, char __user *buf,
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size_t len, loff_t *offset);
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static const struct file_operations proc_virt_fops = {
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.write = virt_proc_write,
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};
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static const struct file_operations proc_info_fops = {
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.read = info_proc_read,
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};
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/*****************************************************/
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/* Globals */
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@ -152,19 +140,6 @@ static DEFINE_RWLOCK(VpcidevListLock);
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/* filled in with info about this driver, wrt it servicing client busses */
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static ULTRA_VBUS_DEVICEINFO Bus_DriverInfo;
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/* virtpci_proc_dir_entry is used to create the proc entry directory
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* for virtpci
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*/
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static struct proc_dir_entry *virtpci_proc_dir;
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/* virt_proc_entry is used to tell virtpci to add/delete vhbas/vnics/vbuses */
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static struct proc_dir_entry *virt_proc_entry;
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/* info_proc_entry is used to tell virtpci to display current info
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* kept in the driver
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*/
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static struct proc_dir_entry *info_proc_entry;
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#define VIRT_PROC_ENTRY_FN "virt"
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#define INFO_PROC_ENTRY_FN "info"
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#define DIR_PROC_ENTRY "virtpci"
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struct virtpci_busdev {
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struct device virtpci_bus_device;
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@ -1401,274 +1376,6 @@ void virtpci_unregister_driver(struct virtpci_driver *drv)
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}
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EXPORT_SYMBOL_GPL(virtpci_unregister_driver);
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/*****************************************************/
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/* proc filesystem functions */
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/*****************************************************/
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struct print_vbus_info {
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int *length;
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char *buf;
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};
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static int print_vbus(struct device *vbus, void *data)
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{
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struct print_vbus_info *p = (struct print_vbus_info *) data;
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int l = *(p->length);
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*(p->length) = l + sprintf(p->buf + l, "bus_id:%s\n", dev_name(vbus));
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return 0; /* no error */
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}
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static ssize_t info_proc_read(struct file *file, char __user *buf,
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size_t len, loff_t *offset)
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{
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int length = 0;
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struct virtpci_dev *tmpvpcidev;
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unsigned long flags;
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struct print_vbus_info printparam;
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char *vbuf;
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loff_t pos = *offset;
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if (pos < 0)
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return -EINVAL;
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if (pos > 0 || !len)
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return 0;
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vbuf = kzalloc(len, GFP_KERNEL);
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if (!vbuf)
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return -ENOMEM;
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length += sprintf(vbuf + length, "CHANSOCK is not defined.\n");
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length += sprintf(vbuf + length, "\n Virtual PCI Bus devices\n");
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printparam.length = &length;
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printparam.buf = vbuf;
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if (bus_for_each_dev(&virtpci_bus_type, NULL,
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(void *) &printparam, print_vbus))
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LOGERR("delete of all vbus failed\n");
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length += sprintf(vbuf + length, "\n Virtual PCI devices\n");
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read_lock_irqsave(&VpcidevListLock, flags);
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tmpvpcidev = VpcidevListHead;
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while (tmpvpcidev) {
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if (tmpvpcidev->devtype == VIRTHBA_TYPE) {
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length += sprintf(vbuf + length, "[%d:%d] VHba:%08x:%08x max-config:%d-%d-%d-%d",
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tmpvpcidev->busNo, tmpvpcidev->deviceNo,
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tmpvpcidev->scsi.wwnn.wwnn1,
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tmpvpcidev->scsi.wwnn.wwnn2,
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tmpvpcidev->scsi.max.max_channel,
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tmpvpcidev->scsi.max.max_id,
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tmpvpcidev->scsi.max.max_lun,
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tmpvpcidev->scsi.max.cmd_per_lun);
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} else {
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length += sprintf(vbuf + length, "[%d:%d] VNic:%02x:%02x:%02x:%02x:%02x:%02x num_rcv_bufs:%d mtu:%d",
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tmpvpcidev->busNo, tmpvpcidev->deviceNo,
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tmpvpcidev->net.mac_addr[0],
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tmpvpcidev->net.mac_addr[1],
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tmpvpcidev->net.mac_addr[2],
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tmpvpcidev->net.mac_addr[3],
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tmpvpcidev->net.mac_addr[4],
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tmpvpcidev->net.mac_addr[5],
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tmpvpcidev->net.num_rcv_bufs,
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tmpvpcidev->net.mtu);
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}
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length +=
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sprintf(vbuf + length, " chanptr:%p\n",
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tmpvpcidev->queueinfo.chan);
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tmpvpcidev = tmpvpcidev->next;
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}
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read_unlock_irqrestore(&VpcidevListLock, flags);
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length += sprintf(vbuf + length, "\n");
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if (copy_to_user(buf, vbuf, length)) {
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kfree(vbuf);
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return -EFAULT;
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}
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kfree(vbuf);
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*offset += length;
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return length;
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}
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static ssize_t virt_proc_write(struct file *file, const char __user *buffer,
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size_t count, loff_t *ppos)
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{
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char buf[16];
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int type, i, action = 0xffff;
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unsigned int busno, deviceno;
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void __iomem *chanptr;
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struct add_vbus_guestpart busaddparams;
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struct add_virt_guestpart addparams;
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struct del_vbus_guestpart busdelparams;
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struct del_virt_guestpart delparams;
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#ifdef STORAGE_CHANNEL
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U64 storagechannel;
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#endif
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#define PRINT_USAGE_RETURN {\
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LOGERR("usage: 0-0-<chanptr> ==> delete vhba\n"); \
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LOGERR("usage: 0-1-<chanptr>-<busNo>-<deviceNo> ==> add vhba\n"); \
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LOGERR("usage: 0-f-<busNo> ==> delete all vhbas\n"); \
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LOGERR("\n"); \
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LOGERR("usage: 1-0-<chanptr> ==> delete vnic\n"); \
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LOGERR("usage: 1-1-<chanptr>-<busNo>-<deviceNo> ==> add vnic\n"); \
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LOGERR("usage: 1-f-<busNo> ==> delete all vnics\n"); \
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LOGERR("\n"); \
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LOGERR("usage: 6-0-<busNo> ==> delete vbus\n"); \
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LOGERR("usage: 6-1-<busNo> ==> add vbus\n"); \
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LOGERR("usage: 6-f ==> delete all vbuses\n"); \
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LOGERR("usage: 98-<busNo>-<deviceNo> ==> INJECT Client delete vnic\n"); \
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LOGERR("usage: 99-<chanptr>-<busNo>-<deviceNo> ==> INJECT Client add vnic\n"); \
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return -EINVAL; \
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}
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if (count >= ARRAY_SIZE(buf))
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return -EINVAL;
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if (copy_from_user(buf, buffer, count)) {
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LOGERR("copy_from_user failed.\n");
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return -EFAULT;
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}
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i = sscanf(buf, "%x-%x", &type, &action);
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if (i < 2)
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PRINT_USAGE_RETURN;
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if (type == 0x98) {
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/* client inject delete vnic */
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i = sscanf(buf, "%x-%d-%d", &type, &busno, &deviceno);
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if (i != 3)
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PRINT_USAGE_RETURN;
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uislib_client_inject_del_vnic(busno, deviceno);
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return count; /* success */
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} else if (type == 0x99) {
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/* client inject add vnic */
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i = sscanf(buf, "%x-%p-%d-%d", &type, &chanptr, &busno,
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&deviceno);
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if (i != 4)
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PRINT_USAGE_RETURN;
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if (!uislib_client_inject_add_vnic(busno, deviceno,
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__pa(chanptr),
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MIN_IO_CHANNEL_SIZE,
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1, /* test msg */
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NULL_UUID_LE, /* inst guid */
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NULL)) { /*interrupt info */
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LOGERR("FAILED to inject add vnic\n");
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return -EFAULT;
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}
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return count; /* success */
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}
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if ((type != VIRTHBA_TYPE) && (type != VIRTNIC_TYPE)
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&& (type != VIRTBUS_TYPE))
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PRINT_USAGE_RETURN;
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if (type == VIRTBUS_TYPE) {
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i = sscanf(buf, "%x-%x-%d", &type, &action, &busno);
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switch (action) {
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case 0:
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/* delete vbus */
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if (i != 3)
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break;
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busdelparams.busNo = busno;
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if (delete_vbus(&busdelparams))
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return count; /* success */
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return -EFAULT;
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case 1:
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/* add vbus */
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if (i != 3)
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break;
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busaddparams.chanptr = NULL; /* NOT YET USED */
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busaddparams.busNo = busno;
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if (add_vbus(&busaddparams))
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return count; /* success */
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return -EFAULT;
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case 0xf:
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/* delete all vbuses and all vhbas/vnics on the buses */
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if (i != 2)
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break;
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delete_all();
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return count; /* success */
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default:
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break;
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}
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PRINT_USAGE_RETURN;
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}
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/* if (type == VIRTNIC_TYPE) or if (type == VIRTHBA_TYPE) */
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switch (action) {
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case 0:
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/* delete vhba/vnic */
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i = sscanf(buf, "%x-%x-%p", &type, &action, &chanptr);
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if (i != 3)
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break;
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delparams.chanptr = chanptr;
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if (type == VIRTHBA_TYPE) {
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if (delete_vhba(&delparams))
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return count; /* success */
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} else {
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if (delete_vnic(&delparams))
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return count; /* success */
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}
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return -EFAULT;
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case 1:
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/* add vhba/vnic */
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i = sscanf(buf, "%x-%x-%p-%d-%d", &type, &action, &chanptr,
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&busno, &deviceno);
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if (i != 5)
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break;
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addparams.chanptr = chanptr;
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addparams.busNo = busno;
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addparams.deviceNo = deviceno;
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if (type == VIRTHBA_TYPE) {
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if (add_vhba(&addparams))
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return count; /* success */
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} else {
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if (add_vnic(&addparams))
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return count; /* success */
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}
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return -EFAULT;
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#ifdef STORAGE_CHANNEL
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case 2:
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/* add vhba */
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i = sscanf(buf, "%x-%x-%d-%d", &type, &action, &busno,
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&deviceno);
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if (i != 4)
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break;
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storagechannel = uislib_storage_channel(0); /* Get my storage channel */
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/* ioremap_cache it now */
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addparams.chanptr =
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(void *) ioremap_cache(storagechannel, IO_CHANNEL_SIZE);
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if (addparams.chanptr == NULL) {
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LOGERR("Failure to get remap storage channel.\n");
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return -EFAULT;
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}
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addparams.busNo = busno;
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addparams.deviceNo = deviceno;
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if (type == VIRTHBA_TYPE) {
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if (add_vhba(&addparams))
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return count; /* success */
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}
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return -EFAULT;
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#endif
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case 0xf:
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/* delete all vhbas/vnics */
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i = sscanf(buf, "%x-%x-%d", &type, &action, &busno);
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if (i != 3)
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break;
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busdelparams.busNo = busno;
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delete_all_virt(type, &busdelparams);
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return count; /* success */
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default:
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break;
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}
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PRINT_USAGE_RETURN;
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}
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/*****************************************************/
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/* Module Init & Exit functions */
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/*****************************************************/
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@ -1719,12 +1426,7 @@ static int __init virtpci_mod_init(void)
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LOGINF("successfully registered virtpci_ctrlchan_func (0x%p) as callback.\n",
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(void *) &virtpci_ctrlchan_func);
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/* create the proc directories */
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virtpci_proc_dir = proc_mkdir(DIR_PROC_ENTRY, NULL);
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virt_proc_entry = proc_create(VIRT_PROC_ENTRY_FN, 0, virtpci_proc_dir,
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&proc_virt_fops);
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info_proc_entry = proc_create(INFO_PROC_ENTRY_FN, 0, virtpci_proc_dir,
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&proc_info_fops);
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LOGINF("Leaving\n");
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POSTCODE_LINUX_2(VPCI_CREATE_EXIT_PC, POSTCODE_SEVERITY_INFO);
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return 0;
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@ -1741,15 +1443,6 @@ static void __exit virtpci_mod_exit(void)
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device_unregister(&virtpci_rootbus_device);
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bus_unregister(&virtpci_bus_type);
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if (virt_proc_entry)
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remove_proc_entry(VIRT_PROC_ENTRY_FN, virtpci_proc_dir);
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if (info_proc_entry)
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remove_proc_entry(INFO_PROC_ENTRY_FN, virtpci_proc_dir);
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if (virtpci_proc_dir)
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remove_proc_entry(DIR_PROC_ENTRY, NULL);
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LOGINF("Leaving\n");
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}
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