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Commit 7ff662b7 authored by Devesh Sharma's avatar Devesh Sharma Committed by Doug Ledford
Browse files

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: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 2f08ee36

drivers/infiniband/hw/bnxt_re/ib_verbs.c

+2 −4
Original line number Diff line number Diff line
@@ -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;

drivers/infiniband/hw/bnxt_re/qplib_sp.c

+1 −13
Original line number Diff line number Diff line
@@ -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;