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greybus: es-drivers: add outbound timestamp to connection

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In order to facilitate grabbing a timestamp that doesn't include greybus
overhead, this patch adds a timestamp right before usb_submit_urb() for
both es1.c and es2.c. Long term the timestmaping of messages like this
probably wants to go away but, for the moment it may have some use to the
firmware people instrumenting the performance of the system.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Bryan O'Donoghue 2015-08-11 13:50:52 +01:00 committed by Greg Kroah-Hartman
parent a1a4a29cb9
commit 3f2a809e8b
2 changed files with 4 additions and 0 deletions
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2
drivers/staging/greybus/es1.c
View File

@ -16,6 +16,7 @@
#include "greybus.h"
#include "svc_msg.h"
#include "kernel_ver.h"
#include "connection.h"
/* Memory sizes for the buffers sent to/from the ES1 controller */
#define ES1_SVC_MSG_SIZE (sizeof(struct svc_msg) + SZ_64K)
@ -244,6 +245,7 @@ static int message_send(struct greybus_host_device *hd, u16 cport_id,
usb_sndbulkpipe(udev, es1->cport_out_endpoint),
message->buffer, buffer_size,
cport_out_callback, message);
gb_connection_push_timestamp(message->operation->connection);
retval = usb_submit_urb(urb, gfp_mask);
if (retval) {
pr_err("error %d submitting URB\n", retval);

2
drivers/staging/greybus/es2.c
View File

@ -16,6 +16,7 @@
#include "greybus.h"
#include "svc_msg.h"
#include "kernel_ver.h"
#include "connection.h"
/* Memory sizes for the buffers sent to/from the ES1 controller */
#define ES1_SVC_MSG_SIZE (sizeof(struct svc_msg) + SZ_64K)
@ -340,6 +341,7 @@ static int message_send(struct greybus_host_device *hd, u16 cport_id,
es1->cport_out[bulk_ep_set].endpoint),
message->buffer, buffer_size,
cport_out_callback, message);
gb_connection_push_timestamp(message->operation->connection);
retval = usb_submit_urb(urb, gfp_mask);
if (retval) {
pr_err("error %d submitting URB\n", retval);