[PATCH v2 2/3] scsi: arcmsr: Fix suspend/resume of ACB_ADAPTER_TYPE_B part 2

Ching Huang
2019-01-18T02:58:51Z

>From Ching Huang <ching2048@areca.com.tw>

For ACB_ADAPTER_TYPE_B controller, the read/write after hibernate and resume may
got 'isr get an illegal ccb command' in log/messages sometimes. This patch fix it.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
---

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 5736434..88053b1 100755
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1113,7 +1113,11 @@ static int arcmsr_resume(struct pci_dev *pdev)
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
- reg->post_qbuffer[0] = 0;
+ uint32_t i;
+ for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
+ reg->post_qbuffer[i] = 0;
+ reg->done_qbuffer[i] = 0;
+ }
reg->postq_index = 0;
reg->doneq_index = 0;
break;