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Date: Wed, 24 Aug 2016 12:20:33 +0530
From: Hariprasad Shenai <hariprasad@...lsio.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, leedom@...lsio.com, nirranjan@...lsio.com,
Hariprasad Shenai <hariprasad@...lsio.com>
Subject: [PATCH net-next 1/2] cxgb4/cxgb4vf: Add support for ndo_set_vf_vlan
Signed-off-by: Hariprasad Shenai <hariprasad@...lsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 21 +++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 25 +++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4vf/adapter.h | 1 +
.../net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 2 +
drivers/net/ethernet/chelsio/cxgb4vf/sge.c | 15 ++++++++--
drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h | 1 +
drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c | 28 ++++++++++++++++++++
8 files changed, 91 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 3f7b33a..b20d345 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1627,6 +1627,7 @@ void t4_idma_monitor(struct adapter *adapter,
int hz, int ticks);
int t4_set_vf_mac_acl(struct adapter *adapter, unsigned int vf,
unsigned int naddr, u8 *addr);
+int t4_set_vf_vlan_acl(struct adapter *adapter, unsigned int vf, u16 vlan);
void uld_mem_free(struct adapter *adap);
int uld_mem_alloc(struct adapter *adap);
void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq, struct sge_fl *fl);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 44019bd..330e18a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -3111,6 +3111,26 @@ static int cxgb_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
"Setting MAC %pM on VF %d\n", mac, vf);
return t4_set_vf_mac_acl(adap, vf + 1, 1, mac);
}
+
+static int cxgb_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos)
+{
+ struct port_info *pi = netdev_priv(dev);
+ struct adapter *adap = pi->adapter;
+
+ if (vlan > 4095 || qos > 7) {
+ dev_err(pi->adapter->pdev_dev,
+ "Illegal vlan value %u qos %u\n", vlan, qos);
+ return -EINVAL;
+ }
+
+ dev_info(pi->adapter->pdev_dev,
+ "Setting Vlan %u to VF [%d]\n", vlan, vf);
+ dev_info(pi->adapter->pdev_dev,
+ "The VF [%d] interface needs to brought down and up, "
+ "if VF is already up and running, for VST to work\n", vf);
+ vlan |= qos << VLAN_PRIO_SHIFT;
+ return t4_set_vf_vlan_acl(adap, vf + 1, vlan);
+}
#endif
static int cxgb_set_mac_addr(struct net_device *dev, void *p)
@@ -3259,6 +3279,7 @@ static const struct net_device_ops cxgb4_netdev_ops = {
static const struct net_device_ops cxgb4_mgmt_netdev_ops = {
.ndo_open = dummy_open,
.ndo_set_vf_mac = cxgb_set_vf_mac,
+ .ndo_set_vf_vlan = cxgb_set_vf_vlan,
};
#endif
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index de451ee..210979c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -8334,3 +8334,28 @@ int t4_sched_params(struct adapter *adapter, int type, int level, int mode,
return t4_wr_mbox_meat(adapter, adapter->mbox, &cmd, sizeof(cmd),
NULL, 1);
}
+
+/**
+ * t4_set_vf_vlan_acl - Set MAC address for the specified VF
+ * @adapter: The adapter
+ * @vf: one of the VFs instantiated by the specified PF
+ * @vlan: the vlan id
+ * @qos: QOS
+ */
+int t4_set_vf_vlan_acl(struct adapter *adapter, unsigned int vf, u16 vlan)
+{
+ struct fw_acl_vlan_cmd cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+
+ cmd.op_to_vfn = htonl(FW_CMD_OP_V(FW_ACL_VLAN_CMD) |
+ FW_CMD_REQUEST_F |
+ FW_CMD_WRITE_F |
+ FW_ACL_MAC_CMD_PFN_V(adapter->pf) |
+ FW_ACL_MAC_CMD_VFN_V(vf));
+ cmd.en_to_len16 = htonl((unsigned int)FW_LEN16(cmd));
+ cmd.nvlan = 1;
+ cmd.vlanid[0] = vlan;
+
+ return t4_wr_mbox(adapter, adapter->mbox, &cmd, sizeof(cmd), &cmd);
+}
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h b/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
index 109bc63..ed1037e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/adapter.h
@@ -92,6 +92,7 @@ struct sge_rspq;
*/
struct port_info {
struct adapter *adapter; /* our adapter */
+ u32 vlan_id; /* vlan id for VST */
u16 viid; /* virtual interface ID */
s16 xact_addr_filt; /* index of our MAC address filter */
u16 rss_size; /* size of VI's RSS table slice */
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index f2951bf..d6324a6 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -795,6 +795,8 @@ static int cxgb4vf_open(struct net_device *dev)
if (err)
goto err_unwind;
+ pi->vlan_id = t4vf_get_vf_vlan_acl(adapter);
+
netif_tx_start_all_queues(dev);
set_bit(pi->port_id, &adapter->open_device_map);
return 0;
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index c8fd4f8..9a9963b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -1202,6 +1202,10 @@ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
BUG_ON(qidx >= pi->nqsets);
txq = &adapter->sge.ethtxq[pi->first_qset + qidx];
+ if (pi->vlan_id && !skb_vlan_tag_present(skb))
+ __vlan_hwaccel_put_tag(skb, cpu_to_be16(ETH_P_8021Q),
+ pi->vlan_id);
+
/*
* Take this opportunity to reclaim any TX Descriptors whose DMA
* transfers have completed.
@@ -1570,6 +1574,7 @@ static void do_gro(struct sge_eth_rxq *rxq, const struct pkt_gl *gl,
{
struct adapter *adapter = rxq->rspq.adapter;
struct sge *s = &adapter->sge;
+ struct port_info *pi;
int ret;
struct sk_buff *skb;
@@ -1586,8 +1591,9 @@ static void do_gro(struct sge_eth_rxq *rxq, const struct pkt_gl *gl,
skb->truesize += skb->data_len;
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb_record_rx_queue(skb, rxq->rspq.idx);
+ pi = netdev_priv(skb->dev);
- if (pkt->vlan_ex) {
+ if (pkt->vlan_ex && !pi->vlan_id) {
__vlan_hwaccel_put_tag(skb, cpu_to_be16(ETH_P_8021Q),
be16_to_cpu(pkt->vlan));
rxq->stats.vlan_ex++;
@@ -1620,6 +1626,7 @@ int t4vf_ethrx_handler(struct sge_rspq *rspq, const __be64 *rsp,
struct sge_eth_rxq *rxq = container_of(rspq, struct sge_eth_rxq, rspq);
struct adapter *adapter = rspq->adapter;
struct sge *s = &adapter->sge;
+ struct port_info *pi;
/*
* If this is a good TCP packet and we have Generic Receive Offload
@@ -1644,6 +1651,7 @@ int t4vf_ethrx_handler(struct sge_rspq *rspq, const __be64 *rsp,
__skb_pull(skb, s->pktshift);
skb->protocol = eth_type_trans(skb, rspq->netdev);
skb_record_rx_queue(skb, rspq->idx);
+ pi = netdev_priv(skb->dev);
rxq->stats.pkts++;
if (csum_ok && !pkt->err_vec &&
@@ -1659,9 +1667,10 @@ int t4vf_ethrx_handler(struct sge_rspq *rspq, const __be64 *rsp,
} else
skb_checksum_none_assert(skb);
- if (pkt->vlan_ex) {
+ if (pkt->vlan_ex && !pi->vlan_id) {
rxq->stats.vlan_ex++;
- __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), be16_to_cpu(pkt->vlan));
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+ be16_to_cpu(pkt->vlan));
}
netif_receive_skb(skb);
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h
index 8067424..fa06344 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_common.h
@@ -384,5 +384,6 @@ int t4vf_handle_fw_rpl(struct adapter *, const __be64 *);
int t4vf_prep_adapter(struct adapter *);
int t4vf_get_vf_mac_acl(struct adapter *adapter, unsigned int pf,
unsigned int *naddr, u8 *addr);
+int t4vf_get_vf_vlan_acl(struct adapter *adapter);
#endif /* __T4VF_COMMON_H__ */
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
index 879f4c5..b46f6f3 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
@@ -1858,3 +1858,31 @@ int t4vf_get_vf_mac_acl(struct adapter *adapter, unsigned int pf,
return ret;
}
+
+/**
+ * t4vf_get_vf_vlan_acl - Get the VLAN ID to be set to
+ * the VI of this VF.
+ * @adapter: The adapter
+ *
+ * Find the VLAN ID to be set to the VF's VI. The requested VLAN ID
+ * is from the host OS via callback in the PF driver.
+ */
+int t4vf_get_vf_vlan_acl(struct adapter *adapter)
+{
+ struct fw_acl_vlan_cmd cmd;
+ int vlan = 0;
+ int ret = 0;
+
+ cmd.op_to_vfn = htonl(FW_CMD_OP_V(FW_ACL_VLAN_CMD) |
+ FW_CMD_REQUEST_F | FW_CMD_READ_F);
+
+ /* Note: Do not enable the ACL */
+ cmd.en_to_len16 = htonl((unsigned int)FW_LEN16(cmd));
+
+ ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &cmd);
+
+ if (!ret)
+ vlan = cmd.vlanid[0];
+
+ return vlan;
+}
--
1.7.3
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