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Commit 7acc2087 authored by Ajit Khaparde's avatar Ajit Khaparde Committed by David S. Miller
Browse files

be2net: gracefully handle situations when UE is detected 



Avoid accessing the hardware when UE is detected.

Signed-off-by: default avatarAjit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a4ca055f

drivers/net/benet/be_cmds.c

+15 −0
Original line number Diff line number Diff line
@@ -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) {

drivers/net/benet/be_main.c

+1 −0
Original line number Diff line number Diff line
@@ -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");

	}