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[S390] zcrypt: fix PCIXCC/CEX2C error recovery 

Symptom:     zcrypt fails by setting all PCIXCC/CEX2C cards offline for a
             certain type of invalid keys.
Problem:     zcrypt does not handle rc=12/rs=769 request responses correctly
Solution:    modify convert_type86_ica() to handle these error codes correctly

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Ralph Wuerthner 2007-10-12 16:11:30 +02:00 committed by Martin Schwidefsky
parent 39aa7cf612
commit 2af48080e1
1 changed files with 5 additions and 2 deletions
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7
drivers/s390/crypto/zcrypt_pcixcc.c
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@ -432,14 +432,17 @@ static int convert_type86_ica(struct zcrypt_device *zdev,
}
if (service_rc == 8 && service_rs == 770) {
PDEBUG("Invalid key length on PCIXCC/CEX2C\n");
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
return -EAGAIN;
return -EINVAL;
}
if (service_rc == 8 && service_rs == 783) {
PDEBUG("Extended bitlengths not enabled on PCIXCC/CEX2C\n");
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
return -EAGAIN;
}
if (service_rc == 12 && service_rs == 769) {
PDEBUG("Invalid key on PCIXCC/CEX2C\n");
return -EINVAL;
}
PRINTK("Unknown service rc/rs (PCIXCC/CEX2C): %d/%d\n",
service_rc, service_rs);
zdev->online = 0;