[IB] mthca: report page size capability

Report the device's real page size capability in mthca_query_device().

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

3 files changed, 3 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index e7e5d3b4f00..808037f25c7 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -154,6 +154,7 @@ struct mthca_limits {
         int      reserved_mcgs;
         int      num_pds;
         int      reserved_pds;
+        u32      page_size_cap;
         u32      flags;
         u8       port_width_cap;
 };
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 45c6328e780..16594d1342d 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -181,6 +181,7 @@ static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim
         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
         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;
 
         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 6b016666826..e78259b2664 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -90,6 +90,7 @@ static int mthca_query_device(struct ib_device *ibdev,
         memcpy(&props->node_guid,      out_mad->data + 12, 8);
 
         props->max_mr_size         = ~0ull;
+        props->page_size_cap       = mdev->limits.page_size_cap;
         props->max_qp              = mdev->limits.num_qps - mdev->limits.reserved_qps;
         props->max_qp_wr           = mdev->limits.max_wqes;
         props->max_sge             = mdev->limits.max_sg;