heci_intr.c revision 2c2d21e98a95cba5687ec6574c974a5c6c4a6adb
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 * interrupt function prototypes
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_bh_read_handler(struct io_heci_list *complete_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_bh_write_handler(struct io_heci_list *complete_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void heci_bh_read_bus_message(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_bh_read_pthi_message(struct io_heci_list *complete_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_bh_read_client_message(struct io_heci_list *complete_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void heci_client_connect_response(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct hbm_client_connect_response *connect_res);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void heci_client_disconnect_response(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct hbm_client_connect_response *disconnect_res);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void heci_client_flow_control_response(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void heci_client_disconnect_request(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct hbm_client_disconnect_request *disconnect_req);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic int heci_bh_process_device(struct iamt_heci_device *dev);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_isr_interrupt - The ISR of the HECI device
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @irq: The irq number
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev_id: pointer to the device structure
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return irqreturn_t
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan device->host_hw_state = read_heci_register(device, H_CSR);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* disable interrupts */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * Our device interrupted, schedule work the heci_bh_handler
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * to handle the interrupt processing. This needs to be a
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (ddi_taskq_dispatch(device->work, heci_bh_handler,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan cmn_err(CE_WARN, "taskq_dispatch failed for heci_bh_handler");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_cmpl: process completed operation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @priv_cb_pos: callback block.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void _heci_cmpl(struct heci_file_private *file_ext,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (priv_cb_pos->major_file_operations == HECI_WRITE) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan pollwakeup(&file_ext->tx_pollwait, POLL_IN|POLLRDNORM);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan } else if (priv_cb_pos->major_file_operations == HECI_READ &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("completing read call back information= %lu\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_cmpl_iamthif: process completed iamthif operation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @priv_cb_pos: callback block.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void _heci_cmpl_iamthif(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan pollwakeup(&dev->iamthif_file_ext.pollwait, POLL_IN|POLLRDNORM);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_bh_handler - function called after ISR to handle the interrupt
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * processing.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @work: pointer to the work structure
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * NOTE: This function is called by schedule work
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct iamt_heci_device *dev = (struct iamt_heci_device *)data;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan printk(KERN_ERR "heci: schedule the heci_bh_handler"
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_bh_process_device(struct iamt_heci_device *dev)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_cb_private *cb_pos = NULL, *cb_next = NULL;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("function called after ISR to handle the interrupt processing.\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* initialize our complete list */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->host_hw_state = read_heci_register(dev, H_CSR);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->me_hw_state = read_heci_register(dev, ME_CSR_HA);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* check if ME wants a reset */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* check if we need to start the dev */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((dev->me_hw_state & ME_RDY_HRA) == ME_RDY_HRA) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan "failed for reinit_tsk");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* check slots avalable for reading */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan while ((slots > 0) && (!dev->extra_write_index)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("slots =%08x extra_write_index =%08x.\n", slots,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan rets = heci_bh_read_handler(&complete_list, dev, &slots);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan rets = heci_bh_write_handler(&complete_list, dev, &slots);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->host_hw_state = read_heci_register(dev, H_CSR);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->host_buffer_is_empty = host_buffer_is_empty(dev);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* acknowledge interrupt and disable interrupts */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan &complete_list.heci_cb.cb_list, cb_list, struct heci_cb_private) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext = (struct heci_file_private *)cb_pos->file_private;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_bh_read_handler - bottom half read routine after ISR to
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * handle the read processing.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @cmpl_list: An instance of our list structure
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: slots to read.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0 on success, <0 on failure.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_bh_read_handler(struct io_heci_list *cmpl_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->rd_msg_hdr = read_heci_register(dev, ME_CB_RW);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr = (struct heci_msg_hdr *)&dev->rd_msg_hdr;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((heci_hdr->reserved) || !(dev->rd_msg_hdr)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((heci_hdr->host_addr) || (heci_hdr->me_addr)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan &dev->file_list, link, struct heci_file_private) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan " client = %d, ME client = %d\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((file_pos->host_client_id == heci_hdr->host_addr) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (((*slots) * sizeof (uint32_t)) < heci_hdr->length) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("we can't read the message slots=%08x.\n", *slots);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* we can't read the message */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* decide where to read the message too */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (HECI_FILE_CONNECTED == dev->iamthif_file_ext.state) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ret = heci_bh_read_pthi_message(cmpl_list, dev, heci_hdr);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ret = heci_bh_read_client_message(cmpl_list, dev, heci_hdr);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* reset the number of slots and header */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* overflow - reset */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* set the event since message has been read */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_bh_read_bus_message - bottom half read routine after ISR to
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * handle the read bus message cmd processing.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @heci_hdr: header of bus message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void heci_bh_read_bus_message(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct hbm_client_connect_response *disconnect_res;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct hbm_client_disconnect_request *disconnect_req;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan unsigned char *buffer;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* read the message to our buffer */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ASSERT(heci_hdr->length < sizeof (dev->rd_msg_buf));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan version_res = (struct hbm_host_version_response *)heci_msg;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("client connect response message received.\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_client_disconnect_response(dev, disconnect_res);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("client disconnect response message received.\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan flow_control = (struct hbm_flow_control *)heci_msg;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_client_flow_control_response(dev, flow_control);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("client flow control response message received.\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan props_res = (struct hbm_props_response *)heci_msg;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan enum_res = (struct hbm_host_enum_response *)heci_msg;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* search for client */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (struct hbm_client_disconnect_request *)heci_msg;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_client_disconnect_request(dev, disconnect_req);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* prepare stop request */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr = (struct heci_msg_hdr *)&dev->ext_msg_buf[0];
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr->length = sizeof (struct hbm_host_stop_request);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (struct hbm_host_stop_request *)&dev->ext_msg_buf[1];
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct hbm_host_stop_request));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_bh_read_pthi_message - bottom half read routine after ISR to
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * handle the read pthi message data processing.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @complete_list: An instance of our list structure
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @heci_hdr: header of pthi message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0 on success, <0 on failure.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_bh_read_pthi_message(struct io_heci_list *complete_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan unsigned char *buffer;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ASSERT(heci_hdr->me_addr == dev->iamthif_file_ext.me_client_id);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan ASSERT(dev->iamthif_state == HECI_IAMTHIF_READING);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan buffer = (unsigned char *)(dev->iamthif_msg_buf +
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (dev->iamthif_msg_buf_index + heci_hdr->length));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("pthi_message_buffer_index=%d\n", heci_hdr->length);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan file_ext = (struct heci_file_private *)priv_cb->file_private;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_cb->information = dev->iamthif_msg_buf_index;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((dev->iamthif_ioctl) && (file_ext == &dev->iamthif_file_ext)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* found the iamthif cb */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_bh_state_ok - check if heci header matches file private data
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @heci_hdr: header of heci client message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return !=0 if matches, 0 if no match.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan_heci_bh_state_ok(struct heci_file_private *file_ext,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan return ((file_ext->host_client_id == heci_hdr->host_addr) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (HECI_READ_COMPLETE != file_ext->reading_state));
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_bh_read_client_message - bottom half read routine after ISR to
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * handle the read heci client message data processing.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @complete_list: An instance of our list structure
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @heci_hdr: header of heci client message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0 on success, <0 on failure.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_bh_read_client_message(struct io_heci_list *complete_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_cb_private *priv_cb_pos = NULL, *priv_cb_next = NULL;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(priv_cb_pos, priv_cb_next,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan &dev->read_list.heci_cb.cb_list, cb_list, struct heci_cb_private) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan buffer = (unsigned char *)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan "ME client = %d, "
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan "data length = %lu\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_read_slots(dev, (unsigned char *)dev->rd_msg_buf,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_bh_iamthif_read: prepare to read iamthif data.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: free slots.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0, OK; otherwise, error.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan_heci_bh_iamthif_read(struct iamt_heci_device *dev, int32_t *slots)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (((*slots) * sizeof (uint32_t)) >= (sizeof (struct heci_msg_hdr)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan + sizeof (struct hbm_flow_control))) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (!heci_send_flow_control(dev, &dev->iamthif_file_ext)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->host_buffer_is_empty = host_buffer_is_empty(dev);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_bh_close: process close related operation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: free slots.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @priv_cb_pos: callback block.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @cmpl_list: complete list.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0, OK; otherwise, error.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan_heci_bh_close(struct iamt_heci_device *dev, int32_t *slots,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((*slots * sizeof (uint32_t)) >= (sizeof (struct heci_msg_hdr) +
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct hbm_client_disconnect_request))) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct hbm_client_disconnect_request) + 3) / 4;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* return the cancel routine */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_hb_close: process read related operation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: free slots.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @priv_cb_pos: callback block.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @cmpl_list: complete list.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0, OK; otherwise, error.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan_heci_bh_read(struct iamt_heci_device *dev, int32_t *slots,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((*slots * sizeof (uint32_t)) >= (sizeof (struct heci_msg_hdr) +
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct hbm_flow_control))) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* return the cancel routine */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_bh_ioctl: process ioctl related operation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: free slots.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @priv_cb_pos: callback block.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @cmpl_list: complete list.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0, OK; otherwise, error.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan_heci_bh_ioctl(struct iamt_heci_device *dev, int32_t *slots,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((*slots * sizeof (uint32_t)) >= (sizeof (struct heci_msg_hdr) +
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct hbm_client_connect_request))) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan sizeof (struct hbm_client_connect_request) + 3) / 4;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* return the cancel routine */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_bh_cmpl: process completed and no-iamthif operation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: free slots.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @priv_cb_pos: callback block.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @cmpl_list: complete list.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0, OK; otherwise, error.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan_heci_bh_cmpl(struct iamt_heci_device *dev, int32_t *slots,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((*slots * sizeof (uint32_t)) >= (sizeof (struct heci_msg_hdr) +
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr = (struct heci_msg_hdr *)&dev->wr_msg_buf[0];
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr->length = ((priv_cb_pos->request_buffer.size) -
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan "heci_hdr->msg_complete= %d\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (unsigned char *)(priv_cb_pos->request_buffer.data +
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan } else if (*slots == ((dev->host_hw_state & H_CBD) >> 24)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* buffer is still empty */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr = (struct heci_msg_hdr *)&dev->wr_msg_buf[0];
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (*slots * sizeof (uint32_t)) - sizeof (struct heci_msg_hdr);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (unsigned char *)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan " heci_hdr->msg_complete= %d\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * _heci_bh_cmpl_iamthif: process completed iamthif operation.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: free slots.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @priv_cb_pos: callback block.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @cmpl_list: complete list.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0, OK; otherwise, error.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan_heci_bh_cmpl_iamthif(struct iamt_heci_device *dev, int32_t *slots,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((*slots * sizeof (uint32_t)) >= (sizeof (struct heci_msg_hdr) +
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr = (struct heci_msg_hdr *)&dev->wr_msg_buf[0];
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan priv_cb_pos->information = dev->iamthif_msg_buf_index;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* save iamthif cb sent to pthi client */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan } else if (*slots == ((dev->host_hw_state & H_CBD) >> 24)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* buffer is still empty */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan heci_hdr = (struct heci_msg_hdr *)&dev->wr_msg_buf[0];
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (*slots * sizeof (uint32_t)) - sizeof (struct heci_msg_hdr);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_bh_write_handler - bottom half write routine after
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * ISR to handle the write processing.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @cmpl_list: An instance of our list structure
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @slots: slots to write.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0 on success, <0 on failure.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_bh_write_handler(struct io_heci_list *cmpl_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_cb_private *priv_cb_pos = NULL, *priv_cb_next = NULL;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* complete all waiting for write CB */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(priv_cb_pos, priv_cb_next,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan &list->heci_cb.cb_list, cb_list, struct heci_cb_private) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("extra_write_index =%d.\n", dev->extra_write_index);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (dev->extra_write_index - 1) * sizeof (uint32_t))) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* complete control write list CB */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* complete control write list CB */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(priv_cb_pos, priv_cb_next,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* send disconnect message */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* send flow control message */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* connect message */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* complete write list CB */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(priv_cb_pos, priv_cb_next,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan " credentials for client"
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan " %d, not sending.\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* IAMTHIF IOCTL */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan " credentials for pthi"
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan " client %d.\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * is_treat_specially_client - check if the message belong
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * to the file private data.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file_ext: private data of the file object
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @rs: connect response bus message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return 0 on success, <0 on failure.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganis_treat_specially_client(struct heci_file_private *file_ext,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((file_ext->host_client_id == rs->host_addr) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("client connect status = 0x%08x.\n", rs->status);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("client connect status = 0x%08x.\n", rs->status);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_client_connect_response - connect response bh routine
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @rs: connect response bus message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_client_connect_response(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_cb_private *priv_cb_pos = NULL, *priv_cb_next = NULL;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* if WD or iamthif client treat specially */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((is_treat_specially_client(&(dev->wd_file_ext), rs)) ||
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan (is_treat_specially_client(&(dev->iamthif_file_ext), rs)))
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan !list_empty(&dev->ctrl_rd_list.heci_cb.cb_list)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(priv_cb_pos, priv_cb_next,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (HECI_IOCTL == priv_cb_pos->major_file_operations) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_client_disconnect_response - disconnect response bh routine
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @rs: disconnect response bus message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganstatic void heci_client_disconnect_response(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct heci_cb_private *priv_cb_pos = NULL, *priv_cb_next = NULL;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan !list_empty(&dev->ctrl_rd_list.heci_cb.cb_list)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(priv_cb_pos, priv_cb_next,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("list_for_each_entry_safe in ctrl_rd_list.\n");
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((file_ext->host_client_id == rs->host_addr) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * same_flow_addr - tell they have same address.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @flow: flow control.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return !=0, same; 0,not.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan return ((file->host_client_id == flow->host_addr) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * add_single_flow_creds - add single buffer credentials.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file: private data ot the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @flow: flow control.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganadd_single_flow_creds(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_client_flow_control_response - flow control response bh routine
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @flow_control: flow control response bus message
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_client_flow_control_response(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* single receive buffer */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* normal connection */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan &dev->file_list, link, struct heci_file_private) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("file_ext of host client %d ME client %d.\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * same_disconn_addr - tell they have same address
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @file: private data of the file object.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @disconn: disconnection request.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @return !=0, same; 0,not.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan return ((file->host_client_id == disconn->host_addr) &&
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_client_disconnect_request - disconnect request bh routine
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @dev: Device object for our driver.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @disconnect_req: disconnect request bus message.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Loganheci_client_disconnect_request(struct iamt_heci_device *dev,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct hbm_client_disconnect_request *disconnect_req)
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct hbm_client_connect_response *disconnect_res;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan list_for_each_entry_safe(file_pos, file_next, &dev->file_list,
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (same_disconn_addr(file_pos, disconnect_req)) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan DBG("disconnect request host client %d ME client %d.\n",
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* prepare disconnect response */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan disconnect_res->host_addr = file_pos->host_client_id;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan disconnect_res->me_addr = file_pos->me_client_id;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * heci_timer - timer function.
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * @data: pointer to the device structure
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan * NOTE: This function is called by timer interrupt work
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan struct iamt_heci_device *dev = (struct iamt_heci_device *)data;
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->wd_timer = timeout(heci_wd_timer, data, 2 * HZ);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if (dev->wd_file_ext.state != HECI_FILE_CONNECTED) {
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan dev->wd_timer = timeout(heci_wd_timer, data, 2 * HZ);
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan /* Watchdog */
617e2443dfc17fe44fd44c0675d6aad2ffc9df42Mark Logan if ((dev->wd_due_counter != 0) && (dev->wd_bypass == 0)) {