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fpga: stratix10-soc: make FPGA task un-interruptible 

When CTRL+C occurs during the process of FPGA reconfiguration, the FPGA
reconfiguration process stops and the user can't perform a new FPGA
reconfiguration properly.

Set FPGA task to be not interruptible so that the user can properly
perform FPGA reconfiguration after CTRL+C event.

Signed-off-by: Richard Gong <richard.gong@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This commit is contained in:
Richard Gong 2020-08-04 09:45:03 -07:00 committed by Moritz Fischer
parent 9123e3a74e
commit 7fbc2bc2fb
1 changed files with 3 additions and 20 deletions
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23
drivers/fpga/stratix10-soc.c
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@ -196,17 +196,13 @@ static int s10_ops_write_init(struct fpga_manager *mgr,
if (ret < 0)
goto init_done;
ret = wait_for_completion_interruptible_timeout(
ret = wait_for_completion_timeout(
&priv->status_return_completion, S10_RECONFIG_TIMEOUT);
if (!ret) {
dev_err(dev, "timeout waiting for RECONFIG_REQUEST\n");
ret = -ETIMEDOUT;
goto init_done;
}
if (ret < 0) {
dev_err(dev, "error (%d) waiting for RECONFIG_REQUEST\n", ret);
goto init_done;
}
ret = 0;
if (!test_and_clear_bit(SVC_STATUS_OK, &priv->status)) {
@ -318,7 +314,7 @@ static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
*/
wait_status = 1; /* not timed out */
if (!priv->status)
wait_status = wait_for_completion_interruptible_timeout(
wait_status = wait_for_completion_timeout(
&priv->status_return_completion,
S10_BUFFER_TIMEOUT);
@ -340,13 +336,6 @@ static int s10_ops_write(struct fpga_manager *mgr, const char *buf,
ret = -ETIMEDOUT;
break;
}
if (wait_status < 0) {
ret = wait_status;
dev_err(dev,
"error (%d) waiting for svc layer buffers\n",
ret);
break;
}
}
if (!s10_free_buffers(mgr))
@ -372,7 +361,7 @@ static int s10_ops_write_complete(struct fpga_manager *mgr,
if (ret < 0)
break;
ret = wait_for_completion_interruptible_timeout(
ret = wait_for_completion_timeout(
&priv->status_return_completion, timeout);
if (!ret) {
dev_err(dev,
@ -380,12 +369,6 @@ static int s10_ops_write_complete(struct fpga_manager *mgr,
ret = -ETIMEDOUT;
break;
}
if (ret < 0) {
dev_err(dev,
"error (%d) waiting for RECONFIG_COMPLETED\n",
ret);
break;
}
/* Not error or timeout, so ret is # of jiffies until timeout */
timeout = ret;
ret = 0;