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soc/fsl/qbman: Fix drain_mr_fqni()

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The drain_mr_fqni() function may be called fron uninterruptable
context so convert the msleep() to an mdelay().  Also ensure that
the valid bit is updated while polling.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
This commit is contained in:
Roy Pledge 2019-08-01 20:16:59 +00:00 committed by Li Yang
parent c5501aa92a
commit 627da8bad5
1 changed files with 3 additions and 1 deletions
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4
drivers/soc/fsl/qbman/qman.c
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@ -1164,6 +1164,7 @@ static int drain_mr_fqrni(struct qm_portal *p)
{
const union qm_mr_entry *msg;
loop:
qm_mr_pvb_update(p);
msg = qm_mr_current(p);
if (!msg) {
/*
@ -1180,7 +1181,8 @@ static int drain_mr_fqrni(struct qm_portal *p)
* entries well before the ring has been fully consumed, so
* we're being *really* paranoid here.
*/
msleep(1);
mdelay(1);
qm_mr_pvb_update(p);
msg = qm_mr_current(p);
if (!msg)
return 0;