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Commit c5c9d27e authored by Henry Orosco's avatar Henry Orosco Committed by Doug Ledford
Browse files

i40iw: Add missing memory barrier 



Add missing write memory barrier before writing the
header containing valid bit to the WQE in i40iw_puda_send.

Signed-off-by: default avatarHenry Orosco <henry.orosco@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent b5e452a0

drivers/infiniband/hw/i40iw/i40iw_puda.c

+3 −0
Original line number Diff line number Diff line
@@ -408,6 +408,9 @@ enum i40iw_status_code i40iw_puda_send(struct i40iw_sc_qp *qp, 
	set_64bit_val(wqe, 0, info->paddr);

	set_64bit_val(wqe, 8, LS_64(info->len, I40IWQPSQ_FRAG_LEN));

	set_64bit_val(wqe, 16, header[0]);



	/* Ensure all data is written before writing valid bit */

	wmb();

	set_64bit_val(wqe, 24, header[1]);



	i40iw_debug_buf(qp->dev, I40IW_DEBUG_PUDA, "PUDA SEND WQE", wqe, 32);