617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Use is subject to license terms.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Part of Intel(R) Manageability Engine Interface Linux driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Copyright (c) 2003 - 2008 Intel Corp.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * All rights reserved.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Redistribution and use in source and binary forms, with or without
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * modification, are permitted provided that the following conditions
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * 1. Redistributions of source code must retain the above copyright
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * notice, this list of conditions, and the following disclaimer,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * without modification.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * 2. Redistributions in binary form must reproduce at minimum a disclaimer
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * substantially similar to the "NO WARRANTY" disclaimer below
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * ("Disclaimer") and any redistribution must be conditioned upon
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * including a substantially similar Disclaimer requirement for further
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * binary redistribution.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * 3. Neither the names of the above-listed copyright holders nor the names
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * of any contributors may be used to endorse or promote products derived
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * from this software without specific prior written permission.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Alternatively, this software may be distributed under the terms of the
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * GNU General Public License ("GPL") version 2 as published by the Free
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Software Foundation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * NO WARRANTY
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * POSSIBILITY OF SUCH DAMAGES.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan#pragma ident "@(#)heci_main.c 1.7 08/03/07 SMI"
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan#define HECI_DRIVER_VERSION str(MAJOR_VERSION) "." str(MINOR_VERSION) \
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci driver strings
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganchar heci_driver_string[] = "Intel(R) Management Engine Interface";
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganchar heci_copyright[] = "Copyright (c) 2003 - 2008 Intel Corporation.";
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Local Function Prototypes
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_attach(dev_info_t *dip, ddi_attach_cmd_t cmd);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_initialize(dev_info_t *dip, struct iamt_heci_device *device);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_detach(dev_info_t *dip, ddi_detach_cmd_t cmd);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_open(dev_t *devp, int flags, int otyp, cred_t *credp);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_close(dev_t dev, int flag, int otyp, struct cred *cred);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_read(dev_t dev, struct uio *uio_p, cred_t *cred_p);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_ioctl(dev_t dev, int cmd, intptr_t arg, int mode,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_write(dev_t dev, struct uio *uio_p, struct cred *cred);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_poll(dev_t dev, short events, int anyyet,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic struct heci_cb_private *find_read_list_entry(
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic inline int heci_fe_same_id(struct heci_file_private *fe1,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan 0, /* refcnt */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Module linkage information for the kernel
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_driver_string, /* Driver Identifier string. */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Module Initialization functions.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Allocate soft state */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((stat = ddi_soft_state_init(&heci_soft_state_p,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct iamt_heci_device), 1)) != DDI_SUCCESS) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_attach - Driver Attach Routine
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("%s - version %s\n", heci_driver_string, heci_driver_version);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan instance = ddi_get_instance(dip); /* find out which unit */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan status = ddi_soft_state_zalloc(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device = ddi_get_soft_state(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ASSERT(device != NULL); /* can't fail - we only just allocated it */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ddi_soft_state_free(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan status = ddi_create_minor_node(dip, "AMT", S_IFCHR,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ddi_soft_state_free(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_probe - Device Initialization Routine
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_initialize(dev_info_t *dip, struct iamt_heci_device *device)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan err = ddi_get_iblock_cookie(dip, 0, &device->sc_iblk);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan " ddi_get_iblock_cookie() failed\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* initializes the heci device structure */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan attr.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (ddi_regs_map_setup(dip, 1, (caddr_t *)&device->mem_addr, 0, 0,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan cmn_err(CE_WARN, "heci%d: unable to map PCI regs\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan err = ddi_add_intr(dip, 0, &device->sc_iblk, NULL,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan cmn_err(CE_WARN, "heci_probe(): ddi_add_intr() failed\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device->wd_timer = timeout(heci_wd_timer, device, 1);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* disable interrupts */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device->host_hw_state = read_heci_register(device, H_CSR);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan cmn_err(CE_WARN, "heci driver initialization failed.\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_destroy_locks(struct iamt_heci_device *device_object)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan mutex_destroy(&device_object->iamthif_file_ext.file_lock);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan mutex_destroy(&device_object->iamthif_file_ext.read_io_lock);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan mutex_destroy(&device_object->iamthif_file_ext.write_io_lock);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan mutex_destroy(&device_object->wd_file_ext.file_lock);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan mutex_destroy(&device_object->wd_file_ext.read_io_lock);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan mutex_destroy(&device_object->wd_file_ext.write_io_lock);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan cv_destroy(&device_object->iamthif_file_ext.rx_wait);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_remove - Device Removal Routine
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @pdev: PCI device information struct
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_remove is called by the PCI subsystem to alert the driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * that it should release a PCI device.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev = ddi_get_soft_state(heci_soft_state_p, ddi_get_instance(dip));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->wd_file_ext.state == HECI_FILE_CONNECTED &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->iamthif_file_ext.state == HECI_FILE_CONNECTED) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->iamthif_file_ext.state = HECI_FILE_DISCONNECTING;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->wd_file_ext.state == HECI_FILE_CONNECTED) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->wd_file_ext.state = HECI_FILE_DISCONNECTING;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* remove entry if already in list */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_remove_client_from_file_list(dev, dev->wd_file_ext.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* disable interrupts */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->me_clients && dev->num_heci_me_clients > 0) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan kmem_free(dev->me_clients, sizeof (struct heci_me_client) *
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ddi_soft_state_free(heci_soft_state_p, ddi_get_instance(dip));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (!(device = ddi_get_soft_state(heci_soft_state_p, instance)))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_clear_list - remove all callbacks associated with file
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * from heci_cb_list
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file: file information struct
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @heci_cb_list: callbacks list
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_clear_list is called to clear resources associated with file
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * when application calls close function or Ctrl-C was pressed
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 1 if callback removed from the list, 0 otherwise
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_file *file, struct list_node *heci_cb_list)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* list all list member */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(priv_cb_pos, priv_cb_next,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_temp = (struct heci_file *)priv_cb_pos->file_object;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* check if list member associated with a file */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* remove member from the list */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* check if cb equal to current iamthif cb */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* send flow control to iamthif client */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* free all allocated buffers */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_clear_lists - remove all callbacks associated with file
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: device information struct
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file: file information struct
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_clear_lists is called to clear resources associated with file
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * when application calls close function or Ctrl-C was pressed
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 1 if callback removed from the list, 0 otherwise
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_clear_lists(struct iamt_heci_device *dev, struct heci_file *file)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* remove callbacks associated with a file */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (void) heci_clear_list(dev, file, &dev->pthi_cmd_list.heci_cb.cb_list);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (void) heci_clear_list(dev, file, &dev->ctrl_rd_list.heci_cb.cb_list);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (heci_clear_list(dev, file, &dev->ctrl_wr_list.heci_cb.cb_list))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (heci_clear_list(dev, file, &dev->write_list.heci_cb.cb_list))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* check if iamthif_current_cb not NULL */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* check file and iamthif current cb association */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->iamthif_current_cb->file_object == file) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* remove cb */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_open - the open function
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_open(dev_t *devp, int flags, int otyp, cred_t *credp)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Make sure the open is for the right file type.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev = ddi_get_soft_state(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan kmem_free(file_ext, sizeof (struct heci_file_private));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->open_handle_count >= HECI_MAX_OPEN_HANDLE_COUNT) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan kmem_free(file_ext, sizeof (struct heci_file_private));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan while ((dev->heci_host_clients[dev->current_host_client_id / 8]
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan & (1 << (dev->current_host_client_id % 8))) != 0) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->current_host_client_id %= HECI_MAX_OPEN_HANDLE_COUNT;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("current_host_client_id = %d\n", dev->current_host_client_id);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext->host_client_id = dev->current_host_client_id;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan MAKE_MINOR_NUM(dev->current_host_client_id, instance));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->heci_host_clients[file_ext->host_client_id / 8] |=
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_close - the close function
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_close(dev_t devt, int flag, int otyp, struct cred *cred)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev = ddi_get_soft_state(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((if_num < HECI_MINOR_NUMBER) || (!dev) || (!file_ext))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan "ME client = %d\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan rets = heci_disconnect_host_client(dev, file_ext);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("remove client host client = %d, ME client = %d\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->heci_host_clients[file_ext->host_client_id / 8] &=
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* free read cb */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Remove entry from read list */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->iamthif_state == HECI_IAMTHIF_READ_COMPLETE) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganfind_read_list_entry(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext_list_temp = (struct heci_file_private *)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_read - the read client message function.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_read(dev_t devt, struct uio *uio_p, cred_t *cred_p)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev = ddi_get_soft_state(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((if_num < HECI_MINOR_NUMBER) || (!dev) || (!file_ext))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((file_ext->sm_state & HECI_WD_STATE_INDEPENDENCE_MSG_SENT) == 0) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Do not allow to read watchdog client */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct guid)) == 0) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext->sm_state &= ~HECI_WD_STATE_INDEPENDENCE_MSG_SENT;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext->read_cb->information > UIO_OFFSET(uio_p)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan } else if (file_ext->read_cb && file_ext->read_cb->information > 0 &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext->read_cb->information <= UIO_OFFSET(uio_p)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (!file_ext->read_cb || file_ext->read_cb->information == 0) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Offset needs to be cleaned for contingous reads */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("heci start read failure with status = %d\n", err);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan while (HECI_READ_COMPLETE != file_ext->reading_state &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (cv_wait_sig(&file_ext->rx_wait, &dev->device_lock) == 0) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (file_ext->reading_state != HECI_READ_COMPLETE) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* now copy the data to user space */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("priv_cb->information - %lu\n", priv_cb->information);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (uio_p->uio_resid == 0 || uio_p->uio_resid < priv_cb->information) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan uio_p->uio_resid : (priv_cb->information - uio_p->uio_offset));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_cb_pos = find_read_list_entry(dev, file_ext);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Remove entry from read list */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_write - the write function.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_write(dev_t devt, struct uio *uio_p, struct cred *cred)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev = ddi_get_soft_state(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((if_num < HECI_MINOR_NUMBER) || (!dev) || (!file_ext))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb = find_pthi_read_list_entry(dev, file);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (file_ext->reading_state == HECI_READ_COMPLETE))) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* free entry used in read */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (file_ext->reading_state == HECI_READ_COMPLETE) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb = find_read_list_entry(dev, file_ext);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan } else if (file_ext->reading_state == HECI_IDLE &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb = kmem_zalloc(sizeof (struct heci_cb_private), KM_SLEEP);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan kmem_free(priv_write_cb, sizeof (struct heci_cb_private));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan err = uiomove(priv_write_cb->request_buffer.data,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ((memcmp(heci_wd_state_independence_msg[0], UBUFF, 4) == 0) ||
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (memcmp(heci_wd_state_independence_msg[1], UBUFF, 4) == 0) ||
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (memcmp(heci_wd_state_independence_msg[2], UBUFF, 4) == 0)))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext->sm_state |= HECI_WD_STATE_INDEPENDENCE_MSG_SENT;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ASSERT(dev->me_clients[i].client_id == file_ext->me_client_id);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan } else if ((length >
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb->response_buffer.size = IAMTHIF_MTU;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb->major_file_operations = HECI_IOCTL;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb->request_buffer.size = (uint32_t)length;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->iamthif_file_ext.state != HECI_FILE_CONNECTED) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (!list_empty(&dev->pthi_cmd_list.heci_cb.cb_list) ||
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("pthi_state = %d\n", (int)dev->iamthif_state);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb->major_file_operations = HECI_WRITE;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* make sure information is zero before we start */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_write_cb->request_buffer.size = (uint32_t)length;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext->host_client_id, file_ext->me_client_id);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("host client = %d, is not connected to ME client = %d",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ASSERT(dev->me_clients[i].client_id == file_ext->me_client_id);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (length > dev->me_clients[i].props.max_msg_length || length == 0) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (length > ((((dev->host_hw_state & H_CBD) >> 24) *
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (uint32_t)) - sizeof (struct heci_msg_hdr))) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct heci_msg_hdr);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* protect heci low level write */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (unsigned char *)(priv_write_cb->request_buffer.data),
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_ioctl - the IOCTL function
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_ioctl(dev_t devt, int cmd, intptr_t arg, int mode, cred_t *cr, int *rval)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* in user space */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_message_data *u_msg = (struct heci_message_data *)arg;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_message_data k_msg; /* all in kernel on the stack */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev = ddi_get_soft_state(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((if_num < HECI_MINOR_NUMBER) || (!dev) || (!file_ext))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* first copy from user all data needed */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (ddi_copyin(u_msg, &k_msg, sizeof (k_msg), mode)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("first copy from user all data needed filled\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan uint32_t addr32 = (uint32_t)(uint64_t)k_msg.data;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("IPL32: k_msg.data=%p\n", (void *)k_msg.data);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("user message size is %d, cmd = 0x%x\n", k_msg.size, cmd);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan rets = heci_ioctl_get_version(dev, if_num, u_msg, k_msg,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan rets = heci_ioctl_connect_client(dev, if_num, u_msg, k_msg,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan rets = heci_ioctl_wd(dev, if_num, k_msg, file_ext, mode);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan rets = heci_ioctl_bypass_wd(dev, if_num, k_msg, file_ext, mode);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_poll - the poll function
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device = ddi_get_soft_state(heci_soft_state_p, instance);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((if_num < HECI_MINOR_NUMBER) || (!device) || (!file_extension))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (file_extension == &device->iamthif_file_ext) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan mutex_enter(&device->iamthif_file_ext.file_lock);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (device->iamthif_state == HECI_IAMTHIF_READ_COMPLETE &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (HECI_WRITE_COMPLETE == file_extension->writing_state) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_fe_same_id - tell if file private data have same id
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @fe1: private data of 1. file object
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @fe2: private data of 2. file object
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return !=0 - if ids are the same, 0 - if differ.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic inline int heci_fe_same_id(struct heci_file_private *fe1,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan return ((fe1->host_client_id == fe2->host_client_id) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Since the ME firmware won't reset itself during OS reboot, it's not enough
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * to only disable interrupts in quiesce(), here we do a full hand-shake
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * with the firmware.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev = ddi_get_soft_state(heci_soft_state_p, ddi_get_instance(dip));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->wd_file_ext.state == HECI_FILE_CONNECTED &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* disable interrupts */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device = ddi_get_soft_state(heci_soft_state_p, ddi_get_instance(dip));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Stop watchdog if exists */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (device->wd_file_ext.state == HECI_FILE_CONNECTED &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Set new heci state */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device->heci_state == HECI_RECOVERING_FROM_RESET) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Here interrupts are already disabled by heci_reset() */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device = ddi_get_soft_state(heci_soft_state_p, ddi_get_instance(dip));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Start watchdog if stopped in suspend */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (void) memcpy(device->wd_data + HECI_WD_PARAMS_SIZE,