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Commit a45bc17b authored by Devesh Sharma's avatar Devesh Sharma Committed by Jason Gunthorpe
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RDMA/bnxt_re: Unconditionly fence non wire memory operations 



HW requires an unconditonal fence for all non-wire memory operations
through SQ. This guarantees the completions of these memory operations.

Signed-off-by: default avatarDevesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 2fb4f4ea

drivers/infiniband/hw/bnxt_re/ib_verbs.c

+11 −4
Original line number Diff line number Diff line
@@ -2227,10 +2227,13 @@ static int bnxt_re_build_inv_wqe(struct ib_send_wr *wr, 
	wqe->type = BNXT_QPLIB_SWQE_TYPE_LOCAL_INV;

	wqe->local_inv.inv_l_key = wr->ex.invalidate_rkey;



	/* Need unconditional fence for local invalidate

	 * opcode to work as expected.

	 */

	wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;



	if (wr->send_flags & IB_SEND_SIGNALED)

		wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;

	if (wr->send_flags & IB_SEND_FENCE)

		wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;

	if (wr->send_flags & IB_SEND_SOLICITED)

		wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SOLICIT_EVENT;
@@ -2251,8 +2254,12 @@ static int bnxt_re_build_reg_wqe(struct ib_reg_wr *wr, 
	wqe->frmr.levels = qplib_frpl->hwq.level + 1;

	wqe->type = BNXT_QPLIB_SWQE_TYPE_REG_MR;



	if (wr->wr.send_flags & IB_SEND_FENCE)

	/* Need unconditional fence for reg_mr

	 * opcode to function as expected.

	 */



	wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_UC_FENCE;



	if (wr->wr.send_flags & IB_SEND_SIGNALED)

		wqe->flags |= BNXT_QPLIB_SWQE_FLAGS_SIGNAL_COMP;