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IB/hns: Modify the condition of notifying hardware loopback 

This patch modified the condition of notifying hardware loopback.

In hip06, RoCE Engine has several ports, one QP is related
to one port. hardware only support loopback in the same port,
not in the different ports.

So, If QP related to port N, the dmac in the QP context equals
the smac of the local port N or the loop_idc is 1, we should
set loopback bit in QP context to notify hardware.

Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Salil Mehta  <salil.mehta@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Lijun Ou 2016-11-23 19:41:03 +00:00 committed by Doug Ledford
parent 543bfe6c3c
commit 80596c6717
1 changed files with 7 additions and 17 deletions
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24
drivers/infiniband/hw/hns/hns_roce_hw_v1.c
View File

@ -2244,24 +2244,14 @@ static int hns_roce_v1_m_qp(struct ib_qp *ibqp, const struct ib_qp_attr *attr,
QP_CONTEXT_QPC_BYTE_32_SIGNALING_TYPE_S,
hr_qp->sq_signal_bits);
for (port = 0; port < hr_dev->caps.num_ports; port++) {
smac = (u8 *)hr_dev->dev_addr[port];
dev_dbg(dev, "smac: %2x: %2x: %2x: %2x: %2x: %2x\n",
smac[0], smac[1], smac[2], smac[3], smac[4],
smac[5]);
if ((dmac[0] == smac[0]) && (dmac[1] == smac[1]) &&
(dmac[2] == smac[2]) && (dmac[3] == smac[3]) &&
(dmac[4] == smac[4]) && (dmac[5] == smac[5])) {
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S,
1);
break;
}
}
if (hr_dev->loop_idc == 0x1)
port = (attr_mask & IB_QP_PORT) ? (attr->port_num - 1) :
hr_qp->port;
smac = (u8 *)hr_dev->dev_addr[port];
/* when dmac equals smac or loop_idc is 1, it should loopback */
if (ether_addr_equal_unaligned(dmac, smac) ||
hr_dev->loop_idc == 0x1)
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S, 1);
QP_CONTEXT_QPC_BYTE_32_LOOPBACK_INDICATOR_S, 1);
roce_set_bit(context->qpc_bytes_32,
QP_CONTEXT_QPC_BYTE_32_GLOBAL_HEADER_S,