[char-misc-next 2/2] mei: prefix client log messages with client me and host ids

From: Tomas Winkler
Date: Sun Sep 15 2013 - 11:12:28 EST

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From: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>

define cl_dbg and cl_err macros that add me and host id
prefix for debug and error log messages so we can track
for the client context of the flow.

Signed-off-by: Alexander Usyskin <alexander.usyskin@xxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
---
drivers/misc/mei/client.c | 43 ++++++++++++++++++++++---------------------
drivers/misc/mei/client.h | 9 +++++++++
drivers/misc/mei/interrupt.c | 18 +++++++-----------
3 files changed, 38 insertions(+), 32 deletions(-)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index e0684b4..77b8d9b 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -187,10 +187,14 @@ int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length)
*/
int mei_cl_flush_queues(struct mei_cl *cl)
{
+ struct mei_device *dev;
+
if (WARN_ON(!cl || !cl->dev))
return -EINVAL;

- dev_dbg(&cl->dev->pdev->dev, "remove list entry belonging to cl\n");
+ dev = cl->dev;
+
+ cl_dbg(dev, cl, "remove list entry belonging to cl\n");
mei_io_list_flush(&cl->dev->read_list, cl);
mei_io_list_flush(&cl->dev->write_list, cl);
mei_io_list_flush(&cl->dev->write_waiting_list, cl);
@@ -296,7 +300,7 @@ int mei_cl_link(struct mei_cl *cl, int id)

cl->state = MEI_FILE_INITIALIZING;

- dev_dbg(&dev->pdev->dev, "link cl host id = %d\n", cl->host_client_id);
+ cl_dbg(dev, cl, "link cl\n");
return 0;
}

@@ -322,7 +326,7 @@ int mei_cl_unlink(struct mei_cl *cl)

list_for_each_entry_safe(pos, next, &dev->file_list, link) {
if (cl->host_client_id == pos->host_client_id) {
- dev_dbg(&dev->pdev->dev, "remove host client = %d, ME client = %d\n",
+ cl_dbg(dev, cl, "remove host client = %d, ME client = %d\n",
pos->host_client_id, pos->me_client_id);
list_del_init(&pos->link);
break;
@@ -390,6 +394,8 @@ int mei_cl_disconnect(struct mei_cl *cl)

dev = cl->dev;

+ cl_dbg(dev, cl, "disconnecting");
+
if (cl->state != MEI_FILE_DISCONNECTING)
return 0;

@@ -402,13 +408,13 @@ int mei_cl_disconnect(struct mei_cl *cl)
dev->hbuf_is_ready = false;
if (mei_hbm_cl_disconnect_req(dev, cl)) {
rets = -ENODEV;
- dev_err(&dev->pdev->dev, "failed to disconnect.\n");
+ cl_err(dev, cl, "failed to disconnect.\n");
goto free;
}
mdelay(10); /* Wait for hardware disconnection ready */
list_add_tail(&cb->list, &dev->ctrl_rd_list.list);
} else {
- dev_dbg(&dev->pdev->dev, "add disconnect cb to control write list\n");
+ cl_dbg(dev, cl, "add disconnect cb to control write list\n");
list_add_tail(&cb->list, &dev->ctrl_wr_list.list);

}
@@ -421,18 +427,17 @@ int mei_cl_disconnect(struct mei_cl *cl)
mutex_lock(&dev->device_lock);
if (MEI_FILE_DISCONNECTED == cl->state) {
rets = 0;
- dev_dbg(&dev->pdev->dev, "successfully disconnected from FW client.\n");
+ cl_dbg(dev, cl, "successfully disconnected from FW client.\n");
} else {
rets = -ENODEV;
if (MEI_FILE_DISCONNECTED != cl->state)
- dev_dbg(&dev->pdev->dev, "wrong status client disconnect.\n");
+ cl_err(dev, cl, "wrong status client disconnect.\n");

if (err)
- dev_dbg(&dev->pdev->dev,
- "wait failed disconnect err=%08x\n",
+ cl_dbg(dev, cl, "wait failed disconnect err=%08x\n",
err);

- dev_dbg(&dev->pdev->dev, "failed to disconnect from FW client.\n");
+ cl_err(dev, cl, "failed to disconnect from FW client.\n");
}

mei_io_list_flush(&dev->ctrl_rd_list, cl);
@@ -639,13 +644,12 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
return -ENODEV;

if (cl->read_cb) {
- dev_dbg(&dev->pdev->dev, "read is pending.\n");
+ cl_dbg(dev, cl, "read is pending.\n");
return -EBUSY;
}
i = mei_me_cl_by_id(dev, cl->me_client_id);
if (i < 0) {
- dev_err(&dev->pdev->dev, "no such me client %d\n",
- cl->me_client_id);
+ cl_err(dev, cl, "no such me client %d\n", cl->me_client_id);
return -ENODEV;
}

@@ -664,6 +668,7 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
if (dev->hbuf_is_ready) {
dev->hbuf_is_ready = false;
if (mei_hbm_cl_flow_control_req(dev, cl)) {
+ cl_err(dev, cl, "flow control send failed\n");
rets = -ENODEV;
goto err;
}
@@ -714,9 +719,8 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
return 0;
}

- dev_dbg(&dev->pdev->dev, "buf: size = %d idx = %lu\n",
+ cl_dbg(dev, cl, "buf: size = %d idx = %lu\n",
cb->request_buffer.size, cb->buf_idx);
- dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr));

*slots -= msg_slots;
if (mei_write_message(dev, &mei_hdr,
@@ -767,7 +771,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)

buf = &cb->request_buffer;

- dev_dbg(&dev->pdev->dev, "mei_cl_write %d\n", buf->size);
+ cl_dbg(dev, cl, "mei_cl_write %d\n", buf->size);

cb->fop_type = MEI_FOP_WRITE;
@@ -800,9 +804,6 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
mei_hdr.me_addr = cl->me_client_id;
mei_hdr.reserved = 0;

- dev_dbg(&dev->pdev->dev, "write " MEI_HDR_FMT "\n",
- MEI_HDR_PRM(&mei_hdr));
-

if (mei_write_message(dev, &mei_hdr, buf->data)) {
rets = -EIO;
@@ -898,11 +899,11 @@ void mei_cl_all_wakeup(struct mei_device *dev)
struct mei_cl *cl, *next;
list_for_each_entry_safe(cl, next, &dev->file_list, link) {
if (waitqueue_active(&cl->rx_wait)) {
- dev_dbg(&dev->pdev->dev, "Waking up reading client!\n");
+ cl_dbg(dev, cl, "Waking up reading client!\n");
wake_up_interruptible(&cl->rx_wait);
}
if (waitqueue_active(&cl->tx_wait)) {
- dev_dbg(&dev->pdev->dev, "Waking up writing client!\n");
+ cl_dbg(dev, cl, "Waking up writing client!\n");
wake_up_interruptible(&cl->tx_wait);
}
}
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 892cc42..c8396e5 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -115,4 +115,13 @@ void mei_cl_all_disconnect(struct mei_device *dev);
void mei_cl_all_wakeup(struct mei_device *dev);
void mei_cl_all_write_clear(struct mei_device *dev);

+#define MEI_CL_FMT "cl:host=%02d me=%02d "
+#define MEI_CL_PRM(cl) (cl)->host_client_id, (cl)->me_client_id
+
+#define cl_dbg(dev, cl, format, arg...) \
+ dev_dbg(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
+
+#define cl_err(dev, cl, format, arg...) \
+ dev_err(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
+
#endif /* _MEI_CLIENT_H_ */
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 4b59cb7..d27804e 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -113,13 +113,13 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,

if (cb->response_buffer.size == 0 ||
cb->response_buffer.data == NULL) {
- dev_err(&dev->pdev->dev, "response buffer is not allocated.\n");
+ cl_err(dev, cl, "response buffer is not allocated.\n");
list_del(&cb->list);
return -ENOMEM;
}

if (cb->response_buffer.size < mei_hdr->length + cb->buf_idx) {
- dev_dbg(&dev->pdev->dev, "message overflow. size %d len %d idx %ld\n",
+ cl_dbg(dev, cl, "message overflow. size %d len %d idx %ld\n",
cb->response_buffer.size,
mei_hdr->length, cb->buf_idx);
buffer = krealloc(cb->response_buffer.data,
@@ -127,7 +127,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
GFP_KERNEL);

if (!buffer) {
- dev_err(&dev->pdev->dev, "allocation failed.\n");
+ cl_err(dev, cl, "allocation failed.\n");
list_del(&cb->list);
return -ENOMEM;
}
@@ -143,9 +143,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
if (mei_hdr->msg_complete) {
cl->status = 0;
list_del(&cb->list);
- dev_dbg(&dev->pdev->dev, "completed read H cl = %d, ME cl = %d, length = %lu\n",
- cl->host_client_id,
- cl->me_client_id,
+ cl_dbg(dev, cl, "completed read length = %lu\n",
cb->buf_idx);
list_add_tail(&cb->list, &complete_list->list);
}
@@ -423,12 +421,12 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
if (MEI_WRITING == cl->writing_state &&
cb->fop_type == MEI_FOP_WRITE &&
cl != &dev->iamthif_cl) {
- dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n");
+ cl_dbg(dev, cl, "MEI WRITE COMPLETE\n");
cl->writing_state = MEI_WRITE_COMPLETE;
list_add_tail(&cb->list, &cmpl_list->list);
}
if (cl == &dev->iamthif_cl) {
- dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
+ cl_dbg(dev, cl, "check iamthif flow control.\n");
if (dev->iamthif_flow_control_pending) {
ret = mei_amthif_irq_read(dev, &slots);
if (ret)
@@ -510,9 +508,7 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
if (cl == NULL)
continue;
if (mei_cl_flow_ctrl_creds(cl) <= 0) {
- dev_dbg(&dev->pdev->dev,
- "No flow control credentials for client %d, not sending.\n",
- cl->host_client_id);
+ cl_dbg(dev, cl, "No flow control credentials, not sending.\n");
continue;
}

--
1.8.3.1

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Next message: Jonathan Cameron: "Re: [PATCH 2/2] iio: ti_am335x_adc: Take touchscreen channels intoaccount for conversion timeout"
Previous message: Tomas Winkler: "[char-misc-next 1/2] mei: mei_release: drop redundant check if cb is NULL"
In reply to: Tomas Winkler: "[char-misc-next 1/2] mei: mei_release: drop redundant check if cb is NULL"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]