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RDMA/ocrdma: Use VID 0 if PFC is enabled and vlan is not configured 

If the adapter ports are in PFC mode and VLAN is not configured,
use vlan tag 0 for RoCE traffic. Also, log an advisory message
in system logs.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
hifive-unleashed-5.1
Devesh Sharma 2015-05-19 11:32:35 +05:30 committed by Doug Ledford
parent fe48822bc6
commit 6f5deab0be
2 changed files with 18 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/infiniband/hw/ocrdma/ocrdma_ah.c
View File

@ -56,7 +56,13 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah,
vlan_tag = attr->vlan_id;
if (!vlan_tag || (vlan_tag > 0xFFF))
vlan_tag = dev->pvid;
if (vlan_tag && (vlan_tag < 0x1000)) {
if (vlan_tag || dev->pfc_state) {
if (!vlan_tag) {
pr_err("ocrdma%d:Using VLAN with PFC is recommended\n",
dev->id);
pr_err("ocrdma%d:Using VLAN 0 for this connection\n",
dev->id);
}
eth.eth_type = cpu_to_be16(0x8100);
eth.roce_eth_type = cpu_to_be16(OCRDMA_ROCE_ETH_TYPE);
vlan_tag |= (dev->sl & 0x07) << OCRDMA_VID_PCP_SHIFT;

12
drivers/infiniband/hw/ocrdma/ocrdma_hw.c
View File

@ -2434,7 +2434,7 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp,
int status;
struct ib_ah_attr *ah_attr = &attrs->ah_attr;
union ib_gid sgid, zgid;
u32 vlan_id;
u32 vlan_id = 0xFFFF;
u8 mac_addr[6];
struct ocrdma_dev *dev = get_ocrdma_dev(qp->ibqp.device);
@ -2474,12 +2474,22 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp,
cmd->params.vlan_dmac_b4_to_b5 = mac_addr[4] | (mac_addr[5] << 8);
if (attr_mask & IB_QP_VID) {
vlan_id = attrs->vlan_id;
} else if (dev->pfc_state) {
vlan_id = 0;
pr_err("ocrdma%d:Using VLAN with PFC is recommended\n",
dev->id);
pr_err("ocrdma%d:Using VLAN 0 for this connection\n",
dev->id);
}
if (vlan_id < 0x1000) {
cmd->params.vlan_dmac_b4_to_b5 |=
vlan_id << OCRDMA_QP_PARAMS_VLAN_SHIFT;
cmd->flags |= OCRDMA_QP_PARA_VLAN_EN_VALID;
cmd->params.rnt_rc_sl_fl |=
(dev->sl & 0x07) << OCRDMA_QP_PARAMS_SL_SHIFT;
}
return 0;
}