[PATCH net-next 1/2] cxgb4: Add VF Link state support
From: Arjun Vynipadath <hidden>
Date: 2019-02-28 10:46:43
Subsystem:
cxgb4 ethernet driver (cxgb4), networking drivers, the rest · Maintainers:
Potnuri Bharat Teja, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Use ndo_set_vf_link_state to control the link states associated with the virtual interfaces. Signed-off-by: Arjun Vynipadath <redacted> Signed-off-by: Vishal Kulkarni <redacted> --- drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1 + drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 57 ++++++++++++++++++++++--- drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 8 ++++ 3 files changed, 60 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index b7b0eb104430..dd6379809c74 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h@@ -885,6 +885,7 @@ struct vf_info { unsigned int tx_rate; bool pf_set_mac; u16 vlan; + int link_state; }; enum {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index bcbac247a73d..4eda5285c867 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c@@ -2740,6 +2740,7 @@ static int cxgb4_mgmt_get_vf_config(struct net_device *dev, ivi->min_tx_rate = 0; ether_addr_copy(ivi->mac, vfinfo->vf_mac_addr); ivi->vlan = vfinfo->vlan; + ivi->linkstate = vfinfo->link_state; return 0; }
@@ -2879,6 +2880,49 @@ static int cxgb4_mgmt_set_vf_vlan(struct net_device *dev, int vf, ret, (vlan ? "setting" : "clearing"), adap->pf, vf); return ret; } + +static int cxgb4_mgmt_set_vf_link_state(struct net_device *dev, int vf, + int link) +{ + struct port_info *pi = netdev_priv(dev); + struct adapter *adap = pi->adapter; + int ret = 0; + u32 param, val; + + if (vf >= adap->num_vfs) + return -EINVAL; + + switch (link) { + case IFLA_VF_LINK_STATE_AUTO: + val = VF_LINK_STATE_AUTO; + break; + + case IFLA_VF_LINK_STATE_ENABLE: + val = VF_LINK_STATE_ENABLE; + break; + + case IFLA_VF_LINK_STATE_DISABLE: + val = VF_LINK_STATE_DISABLE; + break; + + default: + return -EINVAL; + } + + param = (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_PFVF) | + FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_PFVF_LINK_STATE)); + ret = t4_set_params(adap, adap->mbox, adap->pf, vf + 1, 1, + ¶m, &val); + if (ret) { + dev_err(adap->pdev_dev, + "Error %d in setting PF %d VF %d link state\n", + ret, adap->pf, vf); + return -EINVAL; + } + + adap->vfinfo[vf].link_state = link; + return ret; +} #endif /* CONFIG_PCI_IOV */ static int cxgb_set_mac_addr(struct net_device *dev, void *p)
@@ -3294,12 +3338,13 @@ static const struct net_device_ops cxgb4_netdev_ops = { #ifdef CONFIG_PCI_IOV static const struct net_device_ops cxgb4_mgmt_netdev_ops = { - .ndo_open = cxgb4_mgmt_open, - .ndo_set_vf_mac = cxgb4_mgmt_set_vf_mac, - .ndo_get_vf_config = cxgb4_mgmt_get_vf_config, - .ndo_set_vf_rate = cxgb4_mgmt_set_vf_rate, - .ndo_get_phys_port_id = cxgb4_mgmt_get_phys_port_id, - .ndo_set_vf_vlan = cxgb4_mgmt_set_vf_vlan, + .ndo_open = cxgb4_mgmt_open, + .ndo_set_vf_mac = cxgb4_mgmt_set_vf_mac, + .ndo_get_vf_config = cxgb4_mgmt_get_vf_config, + .ndo_set_vf_rate = cxgb4_mgmt_set_vf_rate, + .ndo_get_phys_port_id = cxgb4_mgmt_get_phys_port_id, + .ndo_set_vf_vlan = cxgb4_mgmt_set_vf_vlan, + .ndo_set_vf_link_state = cxgb4_mgmt_set_vf_link_state, }; #endif
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index 631f1663f4e0..9a3bab797760 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h@@ -1312,6 +1312,14 @@ enum fw_params_param_pfvf { FW_PARAMS_PARAM_PFVF_RAWF_END = 0x37, FW_PARAMS_PARAM_PFVF_NCRYPTO_LOOKASIDE = 0x39, FW_PARAMS_PARAM_PFVF_PORT_CAPS32 = 0x3A, + FW_PARAMS_PARAM_PFVF_LINK_STATE = 0x40, +}; + +/* Virtual link state as seen by the specified VF */ +enum vf_link_states { + VF_LINK_STATE_AUTO = 0x00, + VF_LINK_STATE_ENABLE = 0x01, + VF_LINK_STATE_DISABLE = 0x02, }; /*
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2.9.5