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fsi: sbefifo: Use specified value of start of response timeout

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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>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20220121053816.82253-2-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Amitay Isaacs 2022-01-21 16:08:15 +10:30 committed by Joel Stanley
parent 3dcf3c84f5
commit b8d536d277
1 changed files with 3 additions and 1 deletions
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4
drivers/fsi/fsi-sbefifo.c
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@ -125,6 +125,7 @@ struct sbefifo {
bool dead; bool dead;
bool async_ffdc; bool async_ffdc;
bool timed_out; bool timed_out;
u32 timeout_start_rsp_ms;
}; };
struct sbefifo_user { 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)); 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 (;;) { for (;;) {
/* Grab FIFO status (this will handle parity errors) */ /* Grab FIFO status (this will handle parity errors) */
rc = sbefifo_wait(sbefifo, false, &status, timeout); rc = sbefifo_wait(sbefifo, false, &status, timeout);
@ -972,6 +973,7 @@ static int sbefifo_probe(struct device *dev)
sbefifo->fsi_dev = fsi_dev; sbefifo->fsi_dev = fsi_dev;
dev_set_drvdata(dev, sbefifo); dev_set_drvdata(dev, sbefifo);
mutex_init(&sbefifo->lock); 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 * Try cleaning up the FIFO. If this fails, we still register the