IB/ipath: Fix error recovery for send buffer status after chip freeze mode

The error recovery code for updating the driver's cached status information
for which send buffers are busy or free wasn't updated for IBA7220.
It should be similar to the initialization code in enable_chip().

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c
index d12dfadaece7..ed2a227ceced 100644
--- a/drivers/infiniband/hw/ipath/ipath_intr.c
+++ b/drivers/infiniband/hw/ipath/ipath_intr.c
@@ -833,7 +833,8 @@ void ipath_clear_freeze(struct ipath_devdata *dd)
          */
         for (i = 0; i < dd->ipath_pioavregs; i++) {
                 /* deal with 6110 chip bug */
-                im = i > 3 ? i ^ 1 : i;
+                im = (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) ?
+                        i ^ 1 : i;
                 val = ipath_read_kreg64(dd, (0x1000 / sizeof(u64)) + im);
                 dd->ipath_pioavailregs_dma[i] = cpu_to_le64(val);
                 dd->ipath_pioavailshadow[i] = val;