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Commit e54b82d7 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by Roland Dreier
Browse files

IB/mthca: Make fence flag work for send work requests 



The fence bit needs to be set in the doorbell too, not just the WQE.

Signed-off-by: default avatarMichael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 9f737633

drivers/infiniband/hw/mthca/mthca_qp.c

+10 −2
Original line number Diff line number Diff line
@@ -99,6 +99,10 @@ enum { 
	MTHCA_QP_BIT_RSC = 1 <<  3

};



enum {

	MTHCA_SEND_DOORBELL_FENCE = 1 << 5

};



struct mthca_qp_path {

	__be32 port_pkey;

	u8     rnr_retry;
@@ -1502,7 +1506,7 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 
	int i;

	int size;

	int size0 = 0;

	u32 f0 = 0;

	u32 f0;

	int ind;

	u8 op0 = 0;
@@ -1686,6 +1690,8 @@ int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 
		if (!size0) {

			size0 = size;

			op0   = mthca_opcode[wr->opcode];

			f0    = wr->send_flags & IB_SEND_FENCE ?

				MTHCA_SEND_DOORBELL_FENCE : 0;

		}



		++ind;
@@ -1843,7 +1849,7 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 
	int i;

	int size;

	int size0 = 0;

	u32 f0 = 0;

	u32 f0;

	int ind;

	u8 op0 = 0;
@@ -2051,6 +2057,8 @@ int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, 
		if (!size0) {

			size0 = size;

			op0   = mthca_opcode[wr->opcode];

			f0    = wr->send_flags & IB_SEND_FENCE ?

				MTHCA_SEND_DOORBELL_FENCE : 0;

		}



		++ind;