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s390/ap: resend enable adapter interrupt request.

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The adapter interrupt for an APQN must be re-enabled after a reset.
This patch sends the interrupt enablement request again, if the APQN
is busy or the reset is still in progress.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Holger Dengler 2012-07-02 12:39:59 +02:00 committed by Heiko Carstens
parent c960bec4fe
commit 8738e07d5c
1 changed files with 6 additions and 0 deletions
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6
drivers/s390/crypto/ap_bus.c
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@ -338,6 +338,12 @@ static int ap_queue_enable_interruption(ap_qid_t qid, void *ind)
break;
case AP_RESPONSE_RESET_IN_PROGRESS:
case AP_RESPONSE_BUSY:
if (i < AP_MAX_RESET - 1) {
udelay(5);
status = ap_queue_interruption_control(qid,
ind);
continue;
}
break;
case AP_RESPONSE_Q_NOT_AVAIL:
case AP_RESPONSE_DECONFIGURED: