rd_toggle = swab32(readl(&priv->mfunc.comm->slave_read));
if (wr_toggle == 0xffffffff || rd_toggle == 0xffffffff) {
/* PCI might be offline */
+
+ /* If device removal has been requested,
+ * do not continue retrying.
+ */
+ if (dev->persist->interface_state &
+ MLX4_INTERFACE_STATE_NOWAIT) {
+ mlx4_warn(dev,
+ "communication channel is offline\n");
+ return -EIO;
+ }
+
msleep(100);
wr_toggle = swab32(readl(&priv->mfunc.comm->
slave_write));
(u32)(1 << COMM_CHAN_OFFLINE_OFFSET));
if (!offline_bit)
return 0;
+
+ /* If device removal has been requested,
+ * do not continue retrying.
+ */
+ if (dev->persist->interface_state &
+ MLX4_INTERFACE_STATE_NOWAIT)
+ break;
+
/* There are cases as part of AER/Reset flow that PF needs
* around 100 msec to load. We therefore sleep for 100 msec
* to allow other tasks to make use of that CPU during this
struct devlink *devlink = priv_to_devlink(priv);
int active_vfs = 0;
+ if (mlx4_is_slave(dev))
+ persist->interface_state |= MLX4_INTERFACE_STATE_NOWAIT;
+
mutex_lock(&persist->interface_state_mutex);
persist->interface_state |= MLX4_INTERFACE_STATE_DELETION;
mutex_unlock(&persist->interface_state_mutex);
enum {
MLX4_INTERFACE_STATE_UP = 1 << 0,
MLX4_INTERFACE_STATE_DELETION = 1 << 1,
+ MLX4_INTERFACE_STATE_NOWAIT = 1 << 2,
};
#define MSTR_SM_CHANGE_MASK (MLX4_EQ_PORT_INFO_MSTR_SM_SL_CHANGE_MASK | \