RDMA/bnxt_re: Disable atomic capability on bnxt_re adapters

More testing needs to be done before enabling this feature.
Disabling the feature temporarily

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index ae9e9ff..280354f 100644 (file)
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -174,10 +174,8 @@ int bnxt_re_query_device(struct ib_device *ibdev,
        ib_attr->max_pd = dev_attr->max_pd;
        ib_attr->max_qp_rd_atom = dev_attr->max_qp_rd_atom;
        ib_attr->max_qp_init_rd_atom = dev_attr->max_qp_init_rd_atom;
-       if (dev_attr->is_atomic) {
-               ib_attr->atomic_cap = IB_ATOMIC_HCA;
-               ib_attr->masked_atomic_cap = IB_ATOMIC_HCA;
-       }
+       ib_attr->atomic_cap = IB_ATOMIC_NONE;
+       ib_attr->masked_atomic_cap = IB_ATOMIC_NONE;
 
        ib_attr->max_ee_rd_atom = 0;
        ib_attr->max_res_rd_atom = 0;

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
index c015c18..0305798 100644 (file)
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
@@ -52,18 +52,6 @@ const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0,
 
 /* Device */
 
-static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw)
-{
-       int rc;
-       u16 pcie_ctl2;
-
-       rc = pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2,
-                                      &pcie_ctl2);
-       if (rc)
-               return false;
-       return !!(pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ);
-}
-
 static void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw,
                                     char *fw_ver)
 {
@@ -165,7 +153,7 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
                attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc);
        }
 
-       attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw);
+       attr->is_atomic = 0;
 bail:
        bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf);
        return rc;