1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 597d7dc7088e..0dc5b8da0007 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -199,6 +199,18 @@ static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim
         mdev->limits.port_width_cap     = dev_lim->max_port_width;
         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
         mdev->limits.flags              = dev_lim->flags;
+        /*
+         * For old FW that doesn't return static rate support, use a
+         * value of 0x3 (only static rate values of 0 or 1 are handled),
+         * except on Sinai, where even old FW can handle static rate
+         * values of 2 and 3.
+         */
+        if (dev_lim->stat_rate_support)
+                mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
+        else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
+                mdev->limits.stat_rate_support = 0xf;
+        else
+                mdev->limits.stat_rate_support = 0x3;
 
         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
            May be doable since hardware supports it for SRQ.