ixgbe: fix ixgbe_tx_is_paused logic
The TFCS bits show the current XON state. Meaning that the
device is paused if these bits are 0. This fixes the logic
to work as it was intended.
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index f0f7329..d80bb1a 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -625,16 +625,16 @@
}
/**
- * ixgbe_tx_is_paused - check if the tx ring is paused
+ * ixgbe_tx_xon_state - check the tx ring xon state
* @adapter: the ixgbe adapter
* @tx_ring: the corresponding tx_ring
*
* If not in DCB mode, checks TFCS.TXOFF, otherwise, find out the
* corresponding TC of this tx_ring when checking TFCS.
*
- * Returns : true if paused
+ * Returns : true if in xon state (currently not paused)
*/
-static inline bool ixgbe_tx_is_paused(struct ixgbe_adapter *adapter,
+static inline bool ixgbe_tx_xon_state(struct ixgbe_adapter *adapter,
struct ixgbe_ring *tx_ring)
{
u32 txoff = IXGBE_TFCS_TXOFF;
@@ -690,7 +690,7 @@
adapter->detect_tx_hung = false;
if (tx_ring->tx_buffer_info[eop].time_stamp &&
time_after(jiffies, tx_ring->tx_buffer_info[eop].time_stamp + HZ) &&
- !ixgbe_tx_is_paused(adapter, tx_ring)) {
+ ixgbe_tx_xon_state(adapter, tx_ring)) {
/* detected Tx unit hang */
union ixgbe_adv_tx_desc *tx_desc;
tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, eop);