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bnxt_en: Implement ndo_bridge_{get|set}link methods.

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To allow users to set the hardware bridging mode to VEB or VEPA.  Only
single function PF can change the bridging mode.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2017-07-24 12:34:22 -04:00 committed by David S. Miller
parent 32e8239c91
commit 39d8ba2e71
1 changed files with 67 additions and 0 deletions
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67
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -4919,6 +4919,26 @@ static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path,
}
}
static int bnxt_hwrm_set_br_mode(struct bnxt *bp, u16 br_mode)
{
struct hwrm_func_cfg_input req = {0};
int rc;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1);
req.fid = cpu_to_le16(0xffff);
req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_EVB_MODE);
if (br_mode == BRIDGE_MODE_VEB)
req.evb_mode = FUNC_CFG_REQ_EVB_MODE_VEB;
else if (br_mode == BRIDGE_MODE_VEPA)
req.evb_mode = FUNC_CFG_REQ_EVB_MODE_VEPA;
else
return -EINVAL;
rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (rc)
rc = -EIO;
return rc;
}
static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id)
{
struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id];
@ -7432,6 +7452,51 @@ static void bnxt_udp_tunnel_del(struct net_device *dev,
schedule_work(&bp->sp_task);
}
static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u32 filter_mask,
int nlflags)
{
struct bnxt *bp = netdev_priv(dev);
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, bp->br_mode, 0, 0,
nlflags, filter_mask, NULL);
}
static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
u16 flags)
{
struct bnxt *bp = netdev_priv(dev);
struct nlattr *attr, *br_spec;
int rem, rc = 0;
if (bp->hwrm_spec_code < 0x10708 || !BNXT_SINGLE_PF(bp))
return -EOPNOTSUPP;
br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
if (!br_spec)
return -EINVAL;
nla_for_each_nested(attr, br_spec, rem) {
u16 mode;
if (nla_type(attr) != IFLA_BRIDGE_MODE)
continue;
if (nla_len(attr) < sizeof(mode))
return -EINVAL;
mode = nla_get_u16(attr);
if (mode == bp->br_mode)
break;
rc = bnxt_hwrm_set_br_mode(bp, mode);
if (!rc)
bp->br_mode = mode;
break;
}
return rc;
}
static const struct net_device_ops bnxt_netdev_ops = {
.ndo_open = bnxt_open,
.ndo_start_xmit = bnxt_start_xmit,
@ -7463,6 +7528,8 @@ static const struct net_device_ops bnxt_netdev_ops = {
.ndo_udp_tunnel_add = bnxt_udp_tunnel_add,
.ndo_udp_tunnel_del = bnxt_udp_tunnel_del,
.ndo_xdp = bnxt_xdp,
.ndo_bridge_getlink = bnxt_bridge_getlink,
.ndo_bridge_setlink = bnxt_bridge_setlink,
};
static void bnxt_remove_one(struct pci_dev *pdev)