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89 lines
2.8 KiB
Diff
89 lines
2.8 KiB
Diff
From 71d19cd1107fa435d056e08e7d7ef7d8f714cf35 Mon Sep 17 00:00:00 2001
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From: Lijun Pan <Lijun.Pan@freescale.com>
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Date: Fri, 31 Jul 2015 15:07:32 -0500
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Subject: [PATCH 195/226] increment MC_CMD_COMPLETION_TIMEOUT_MS
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5000ms is barely enough for dpsw/dpdmux creation.
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If MC firmware could run faster, we would decrement the value later on.
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Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
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(Stuart: resolved merge conflict)
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Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
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---
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drivers/staging/fsl-mc/bus/mc-sys.c | 38 +++++++++++++++--------------------
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1 file changed, 16 insertions(+), 22 deletions(-)
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--- a/drivers/staging/fsl-mc/bus/mc-sys.c
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+++ b/drivers/staging/fsl-mc/bus/mc-sys.c
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@@ -43,8 +43,10 @@
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/**
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* Timeout in milliseconds to wait for the completion of an MC command
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+ * 5000 ms is barely enough for dpsw/dpdmux creation
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+ * TODO: if MC firmware could response faster, we should decrease this value
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*/
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-#define MC_CMD_COMPLETION_TIMEOUT_MS 500
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+#define MC_CMD_COMPLETION_TIMEOUT_MS 5000
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/*
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* usleep_range() min and max values used to throttle down polling
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@@ -327,17 +329,8 @@ static int mc_polling_wait_preemptible(s
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usleep_range(MC_CMD_COMPLETION_POLLING_MIN_SLEEP_USECS,
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MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS);
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- if (time_after_eq(jiffies, jiffies_until_timeout)) {
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- dev_dbg(mc_io->dev,
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- "MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
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- mc_io->portal_phys_addr,
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- (unsigned int)
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- MC_CMD_HDR_READ_TOKEN(cmd->header),
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- (unsigned int)
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- MC_CMD_HDR_READ_CMDID(cmd->header));
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-
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+ if (time_after_eq(jiffies, jiffies_until_timeout))
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return -ETIMEDOUT;
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- }
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}
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*mc_status = status;
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@@ -369,17 +362,8 @@ static int mc_polling_wait_atomic(struct
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udelay(MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS);
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timeout_usecs -= MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS;
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- if (timeout_usecs == 0) {
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- dev_dbg(mc_io->dev,
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- "MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
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- mc_io->portal_phys_addr,
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- (unsigned int)
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- MC_CMD_HDR_READ_TOKEN(cmd->header),
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- (unsigned int)
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- MC_CMD_HDR_READ_CMDID(cmd->header));
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-
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+ if (timeout_usecs == 0)
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return -ETIMEDOUT;
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- }
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}
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*mc_status = status;
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@@ -422,9 +406,19 @@ int mc_send_command(struct fsl_mc_io *mc
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else
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error = mc_polling_wait_atomic(mc_io, cmd, &status);
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- if (error < 0)
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+ if (error < 0) {
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+ if (error == -ETIMEDOUT) {
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+ pr_debug("MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
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+ mc_io->portal_phys_addr,
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+ (unsigned int)
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+ MC_CMD_HDR_READ_TOKEN(cmd->header),
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+ (unsigned int)
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+ MC_CMD_HDR_READ_CMDID(cmd->header));
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+ }
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goto common_exit;
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+ }
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+
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if (status != MC_CMD_STATUS_OK) {
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dev_dbg(mc_io->dev,
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"MC command failed: portal: %#llx, obj handle: %#x, command: %#x, status: %s (%#x)\n",
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