diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c index 26290403f38f..38f635cf8408 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c @@ -64,6 +64,31 @@ static int hwrm_cfa_vfr_free(struct bnxt *bp, u16 vf_idx) return rc; } +static int bnxt_hwrm_vfr_qcfg(struct bnxt *bp, struct bnxt_vf_rep *vf_rep, + u16 *max_mtu) +{ + struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr; + struct hwrm_func_qcfg_input req = {0}; + u16 mtu; + int rc; + + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1); + req.fid = cpu_to_le16(bp->pf.vf[vf_rep->vf_idx].fw_fid); + + mutex_lock(&bp->hwrm_cmd_lock); + + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (!rc) { + mtu = le16_to_cpu(resp->max_mtu_configured); + if (!mtu) + *max_mtu = BNXT_MAX_MTU; + else + *max_mtu = mtu; + } + mutex_unlock(&bp->hwrm_cmd_lock); + return rc; +} + static int bnxt_vf_rep_open(struct net_device *dev) { struct bnxt_vf_rep *vf_rep = netdev_priv(dev); @@ -365,6 +390,7 @@ static void bnxt_vf_rep_netdev_init(struct bnxt *bp, struct bnxt_vf_rep *vf_rep, struct net_device *dev) { struct net_device *pf_dev = bp->dev; + u16 max_mtu; dev->netdev_ops = &bnxt_vf_rep_netdev_ops; dev->ethtool_ops = &bnxt_vf_rep_ethtool_ops; @@ -380,6 +406,10 @@ static void bnxt_vf_rep_netdev_init(struct bnxt *bp, struct bnxt_vf_rep *vf_rep, bnxt_vf_rep_eth_addr_gen(bp->pf.mac_addr, vf_rep->vf_idx, dev->perm_addr); ether_addr_copy(dev->dev_addr, dev->perm_addr); + /* Set VF-Rep's max-mtu to the corresponding VF's max-mtu */ + if (!bnxt_hwrm_vfr_qcfg(bp, vf_rep, &max_mtu)) + dev->max_mtu = max_mtu; + dev->min_mtu = ETH_ZLEN; } static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[]) |