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Subject[PATCH 1/2] fsi: sbefifo: Use specified value of start of response timeout
Date
For some of the chip-ops where sbe needs to collect trace information,
sbe can take a long time (>30s) to respond. Currently these chip-ops
will timeout as the start of response timeout defaults to 10s.

Instead of default value, use specified value. The require timeout
value will be set using ioctl.

Signed-off-by: Amitay Isaacs <amitay@ozlabs.org>
---
drivers/fsi/fsi-sbefifo.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/fsi/fsi-sbefifo.c b/drivers/fsi/fsi-sbefifo.c
index 52328adef643..9188161f440c 100644
--- a/drivers/fsi/fsi-sbefifo.c
+++ b/drivers/fsi/fsi-sbefifo.c
@@ -125,6 +125,7 @@ struct sbefifo {
bool dead;
bool async_ffdc;
bool timed_out;
+ uint32_t timeout_start_rsp_ms;
};

struct sbefifo_user {
@@ -549,7 +550,7 @@ static int sbefifo_read_response(struct sbefifo *sbefifo, struct iov_iter *respo

dev_vdbg(dev, "reading response, buflen = %zd\n", iov_iter_count(response));

- timeout = msecs_to_jiffies(SBEFIFO_TIMEOUT_START_RSP);
+ timeout = msecs_to_jiffies(sbefifo->timeout_start_rsp_ms);
for (;;) {
/* Grab FIFO status (this will handle parity errors) */
rc = sbefifo_wait(sbefifo, false, &status, timeout);
@@ -972,6 +973,7 @@ static int sbefifo_probe(struct device *dev)
sbefifo->fsi_dev = fsi_dev;
dev_set_drvdata(dev, sbefifo);
mutex_init(&sbefifo->lock);
+ sbefifo->timeout_start_rsp_ms = SBEFIFO_TIMEOUT_START_RSP;

/*
* Try cleaning up the FIFO. If this fails, we still register the
--
2.33.1
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