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mei: rename to mei_host_buffer_is_empty to hbuf_is_ready
we rename the mei_host_buffer_is_empty to keep naming convention of hbuf and also make the query more generic to be correct also for other under laying hardware Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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06ecd64598
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330dd7da5e
@ -297,9 +297,9 @@ static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb)
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if (ret < 0)
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if (ret < 0)
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return ret;
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return ret;
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if (ret && dev->mei_host_buffer_is_empty) {
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if (ret && dev->hbuf_is_ready) {
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ret = 0;
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ret = 0;
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dev->mei_host_buffer_is_empty = false;
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dev->hbuf_is_ready = false;
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if (cb->request_buffer.size > mei_hbuf_max_len(dev)) {
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if (cb->request_buffer.size > mei_hbuf_max_len(dev)) {
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mei_hdr.length = mei_hbuf_max_len(dev);
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mei_hdr.length = mei_hbuf_max_len(dev);
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mei_hdr.msg_complete = 0;
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mei_hdr.msg_complete = 0;
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@ -330,7 +330,7 @@ static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb)
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list_add_tail(&cb->list, &dev->write_list.list);
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list_add_tail(&cb->list, &dev->write_list.list);
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}
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}
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} else {
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} else {
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if (!(dev->mei_host_buffer_is_empty))
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if (!dev->hbuf_is_ready)
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dev_dbg(&dev->pdev->dev, "host buffer is not empty");
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dev_dbg(&dev->pdev->dev, "host buffer is not empty");
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dev_dbg(&dev->pdev->dev, "No flow control credentials, so add iamthif cb to write list.\n");
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dev_dbg(&dev->pdev->dev, "No flow control credentials, so add iamthif cb to write list.\n");
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@ -583,7 +583,7 @@ int mei_amthif_irq_read(struct mei_device *dev, s32 *slots)
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dev->iamthif_msg_buf_index = 0;
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dev->iamthif_msg_buf_index = 0;
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dev->iamthif_msg_buf_size = 0;
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dev->iamthif_msg_buf_size = 0;
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dev->iamthif_stall_timer = MEI_IAMTHIF_STALL_TIMER;
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dev->iamthif_stall_timer = MEI_IAMTHIF_STALL_TIMER;
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dev->mei_host_buffer_is_empty = mei_hbuf_is_ready(dev);
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dev->hbuf_is_ready = mei_hbuf_is_ready(dev);
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return 0;
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return 0;
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}
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}
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@ -393,8 +393,8 @@ int mei_cl_disconnect(struct mei_cl *cl)
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return -ENOMEM;
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return -ENOMEM;
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cb->fop_type = MEI_FOP_CLOSE;
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cb->fop_type = MEI_FOP_CLOSE;
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if (dev->mei_host_buffer_is_empty) {
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if (dev->hbuf_is_ready) {
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dev->mei_host_buffer_is_empty = false;
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dev->hbuf_is_ready = false;
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if (mei_hbm_cl_disconnect_req(dev, cl)) {
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if (mei_hbm_cl_disconnect_req(dev, cl)) {
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rets = -ENODEV;
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rets = -ENODEV;
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dev_err(&dev->pdev->dev, "failed to disconnect.\n");
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dev_err(&dev->pdev->dev, "failed to disconnect.\n");
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@ -496,9 +496,8 @@ int mei_cl_connect(struct mei_cl *cl, struct file *file)
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cb->fop_type = MEI_FOP_IOCTL;
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cb->fop_type = MEI_FOP_IOCTL;
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if (dev->mei_host_buffer_is_empty &&
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if (dev->hbuf_is_ready && !mei_cl_is_other_connecting(cl)) {
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!mei_cl_is_other_connecting(cl)) {
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dev->hbuf_is_ready = false;
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dev->mei_host_buffer_is_empty = false;
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if (mei_hbm_cl_connect_req(dev, cl)) {
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if (mei_hbm_cl_connect_req(dev, cl)) {
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rets = -ENODEV;
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rets = -ENODEV;
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@ -661,8 +660,8 @@ int mei_cl_read_start(struct mei_cl *cl)
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cb->fop_type = MEI_FOP_READ;
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cb->fop_type = MEI_FOP_READ;
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cl->read_cb = cb;
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cl->read_cb = cb;
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if (dev->mei_host_buffer_is_empty) {
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if (dev->hbuf_is_ready) {
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dev->mei_host_buffer_is_empty = false;
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dev->hbuf_is_ready = false;
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if (mei_hbm_cl_flow_control_req(dev, cl)) {
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if (mei_hbm_cl_flow_control_req(dev, cl)) {
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rets = -ENODEV;
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rets = -ENODEV;
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goto err;
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goto err;
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@ -486,7 +486,7 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
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rets = mei_irq_write_handler(dev, &complete_list);
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rets = mei_irq_write_handler(dev, &complete_list);
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end:
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end:
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dev_dbg(&dev->pdev->dev, "end of bottom half function.\n");
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dev_dbg(&dev->pdev->dev, "end of bottom half function.\n");
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dev->mei_host_buffer_is_empty = mei_hbuf_is_ready(dev);
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dev->hbuf_is_ready = mei_hbuf_is_ready(dev);
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bus_message_received = false;
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bus_message_received = false;
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if (dev->recvd_msg && waitqueue_active(&dev->wait_recvd_msg)) {
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if (dev->recvd_msg && waitqueue_active(&dev->wait_recvd_msg)) {
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@ -454,14 +454,14 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
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if (rets < 0)
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if (rets < 0)
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goto err;
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goto err;
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if (rets == 0 || dev->mei_host_buffer_is_empty == false) {
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if (rets == 0 || !dev->hbuf_is_ready) {
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write_cb->buf_idx = 0;
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write_cb->buf_idx = 0;
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mei_hdr.msg_complete = 0;
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mei_hdr.msg_complete = 0;
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cl->writing_state = MEI_WRITING;
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cl->writing_state = MEI_WRITING;
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goto out;
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goto out;
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}
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}
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dev->mei_host_buffer_is_empty = false;
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dev->hbuf_is_ready = false;
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if (length > mei_hbuf_max_len(dev)) {
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if (length > mei_hbuf_max_len(dev)) {
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mei_hdr.length = mei_hbuf_max_len(dev);
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mei_hdr.length = mei_hbuf_max_len(dev);
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mei_hdr.msg_complete = 0;
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mei_hdr.msg_complete = 0;
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@ -265,9 +265,13 @@ struct mei_hw_ops {
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/**
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/**
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* struct mei_device - MEI private device struct
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* struct mei_device - MEI private device struct
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* @mem_addr - mem mapped base register address
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* @mem_addr - mem mapped base register address
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* @hbuf_depth - depth of host(write) buffer
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* @wr_ext_msg - buffer for hbm control responses (set in read cycle)
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* @hbuf_depth - depth of hardware host/write buffer is slots
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* @hbuf_is_ready - query if the host host/write buffer is ready
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* @wr_msg - the buffer for hbm control messages
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* @wr_ext_msg - the buffer for hbm control responses (set in read cycle)
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*/
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*/
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struct mei_device {
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struct mei_device {
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struct pci_dev *pdev; /* pointer to pci device struct */
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struct pci_dev *pdev; /* pointer to pci device struct */
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@ -294,7 +298,6 @@ struct mei_device {
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struct delayed_work timer_work; /* MEI timer delayed work (timeouts) */
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struct delayed_work timer_work; /* MEI timer delayed work (timeouts) */
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bool recvd_msg;
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bool recvd_msg;
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u8 hbuf_depth;
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/*
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/*
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* waiting queue for receive message from FW
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* waiting queue for receive message from FW
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*/
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*/
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@ -311,6 +314,10 @@ struct mei_device {
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unsigned char rd_msg_buf[MEI_RD_MSG_BUF_SIZE]; /* control messages */
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unsigned char rd_msg_buf[MEI_RD_MSG_BUF_SIZE]; /* control messages */
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u32 rd_msg_hdr;
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u32 rd_msg_hdr;
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/* write buffer */
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u8 hbuf_depth;
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bool hbuf_is_ready;
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/* used for control messages */
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/* used for control messages */
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struct {
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struct {
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struct mei_msg_hdr hdr;
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struct mei_msg_hdr hdr;
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@ -330,7 +337,6 @@ struct mei_device {
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u8 me_clients_num;
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u8 me_clients_num;
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u8 me_client_presentation_num;
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u8 me_client_presentation_num;
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u8 me_client_index;
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u8 me_client_index;
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bool mei_host_buffer_is_empty;
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struct mei_cl wd_cl;
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struct mei_cl wd_cl;
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enum mei_wd_states wd_state;
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enum mei_wd_states wd_state;
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@ -157,9 +157,9 @@ int mei_wd_stop(struct mei_device *dev)
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if (ret < 0)
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if (ret < 0)
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goto out;
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goto out;
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if (ret && dev->mei_host_buffer_is_empty) {
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if (ret && dev->hbuf_is_ready) {
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ret = 0;
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ret = 0;
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dev->mei_host_buffer_is_empty = false;
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dev->hbuf_is_ready = false;
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if (!mei_wd_send(dev)) {
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if (!mei_wd_send(dev)) {
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ret = mei_cl_flow_ctrl_reduce(&dev->wd_cl);
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ret = mei_cl_flow_ctrl_reduce(&dev->wd_cl);
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@ -282,10 +282,9 @@ static int mei_wd_ops_ping(struct watchdog_device *wd_dev)
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dev->wd_state = MEI_WD_RUNNING;
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dev->wd_state = MEI_WD_RUNNING;
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/* Check if we can send the ping to HW*/
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/* Check if we can send the ping to HW*/
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if (dev->mei_host_buffer_is_empty &&
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if (dev->hbuf_is_ready && mei_cl_flow_ctrl_creds(&dev->wd_cl) > 0) {
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mei_cl_flow_ctrl_creds(&dev->wd_cl) > 0) {
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dev->mei_host_buffer_is_empty = false;
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dev->hbuf_is_ready = false;
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dev_dbg(&dev->pdev->dev, "wd: sending ping\n");
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dev_dbg(&dev->pdev->dev, "wd: sending ping\n");
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if (mei_wd_send(dev)) {
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if (mei_wd_send(dev)) {
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