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RDMA/hns: Add enable judgement for UD vlan

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According to the hardware modification, the vlan of the UD packet is based
on the ud_vlan_en field of the UD wqe to determine whether to add a vlan
header to the UD packet. The ud_vlan_en field is filled by the driver
according to the net device.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Lijun Ou 2018-09-22 16:21:08 +08:00 committed by Jason Gunthorpe
parent 944e64093a
commit 8320deb88c
4 changed files with 11 additions and 1 deletions
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6
drivers/infiniband/hw/hns/hns_roce_ah.c
View File

@ -49,6 +49,7 @@ struct ib_ah *hns_roce_create_ah(struct ib_pd *ibpd,
struct hns_roce_ah *ah;
u16 vlan_tag = 0xffff;
const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
bool vlan_en = false;
ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
if (!ah)
@ -58,8 +59,10 @@ struct ib_ah *hns_roce_create_ah(struct ib_pd *ibpd,
memcpy(ah->av.mac, ah_attr->roce.dmac, ETH_ALEN);
gid_attr = ah_attr->grh.sgid_attr;
if (is_vlan_dev(gid_attr->ndev))
if (is_vlan_dev(gid_attr->ndev)) {
vlan_tag = vlan_dev_vlan_id(gid_attr->ndev);
vlan_en = true;
}
if (vlan_tag < 0x1000)
vlan_tag |= (rdma_ah_get_sl(ah_attr) &
@ -71,6 +74,7 @@ struct ib_ah *hns_roce_create_ah(struct ib_pd *ibpd,
HNS_ROCE_PORT_NUM_SHIFT));
ah->av.gid_index = grh->sgid_index;
ah->av.vlan = cpu_to_le16(vlan_tag);
ah->av.vlan_en = vlan_en;
dev_dbg(dev, "gid_index = 0x%x,vlan = 0x%x\n", ah->av.gid_index,
ah->av.vlan);

1
drivers/infiniband/hw/hns/hns_roce_device.h
View File

@ -450,6 +450,7 @@ struct hns_roce_av {
u8 dgid[HNS_ROCE_GID_SIZE];
u8 mac[6];
__le16 vlan;
bool vlan_en;
};
struct hns_roce_ah {

3
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
View File

@ -370,6 +370,9 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
V2_UD_SEND_WQE_BYTE_40_PORTN_S,
qp->port);
roce_set_bit(ud_sq_wqe->byte_40,
V2_UD_SEND_WQE_BYTE_40_UD_VLAN_EN_S,
ah->av.vlan_en ? 1 : 0);
roce_set_field(ud_sq_wqe->byte_48,
V2_UD_SEND_WQE_BYTE_48_SGID_INDX_M,
V2_UD_SEND_WQE_BYTE_48_SGID_INDX_S,

2
drivers/infiniband/hw/hns/hns_roce_hw_v2.h
View File

@ -993,6 +993,8 @@ struct hns_roce_v2_ud_send_wqe {
#define V2_UD_SEND_WQE_BYTE_40_PORTN_S 24
#define V2_UD_SEND_WQE_BYTE_40_PORTN_M GENMASK(26, 24)
#define V2_UD_SEND_WQE_BYTE_40_UD_VLAN_EN_S 30
#define V2_UD_SEND_WQE_BYTE_40_LBI_S 31
#define V2_UD_SEND_WQE_DMAC_0_S 0