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be2net: gracefully handle situations when UE is detected 

Avoid accessing the hardware when UE is detected.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ajit Khaparde 2011-02-11 13:38:17 +00:00 committed by David S. Miller
parent a4ca055fc3
commit 7acc2087fa
2 changed files with 16 additions and 0 deletions
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15
drivers/net/benet/be_cmds.c
View File

@ -23,6 +23,12 @@ static void be_mcc_notify(struct be_adapter *adapter)
struct be_queue_info *mccq = &adapter->mcc_obj.q;
u32 val = 0;
if (adapter->eeh_err) {
dev_info(&adapter->pdev->dev,
"Error in Card Detected! Cannot issue commands\n");
return;
}
val |= mccq->id & DB_MCCQ_RING_ID_MASK;
val |= 1 << DB_MCCQ_NUM_POSTED_SHIFT;
@ -217,6 +223,9 @@ static int be_mcc_wait_compl(struct be_adapter *adapter)
int i, num, status = 0;
struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
if (adapter->eeh_err)
return -EIO;
for (i = 0; i < mcc_timeout; i++) {
num = be_process_mcc(adapter, &status);
if (num)
@ -246,6 +255,12 @@ static int be_mbox_db_ready_wait(struct be_adapter *adapter, void __iomem *db)
int msecs = 0;
u32 ready;
if (adapter->eeh_err) {
dev_err(&adapter->pdev->dev,
"Error detected in card.Cannot issue commands\n");
return -EIO;
}
do {
ready = ioread32(db);
if (ready == 0xffffffff) {

1
drivers/net/benet/be_main.c
View File

@ -1827,6 +1827,7 @@ void be_detect_dump_ue(struct be_adapter *adapter)
if (ue_status_lo || ue_status_hi) {
adapter->ue_detected = true;
adapter->eeh_err = true;
dev_err(&adapter->pdev->dev, "UE Detected!!\n");
}