cxgb4: implement udp tunnel callbacks

Implement ndo_udp_tunnel_add and ndo_udp_tunnel_del
to support vxlan tunnelling.

Original work by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 106 insertions, 0 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 0e9f64a46ac5..6d76851a4da9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -7467,6 +7467,112 @@ int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid,
 }
 
 /**
+ *	t4_free_raw_mac_filt - Frees a raw mac entry in mps tcam
+ *	@adap: the adapter
+ *	@viid: the VI id
+ *	@addr: the MAC address
+ *	@mask: the mask
+ *	@idx: index of the entry in mps tcam
+ *	@lookup_type: MAC address for inner (1) or outer (0) header
+ *	@port_id: the port index
+ *	@sleep_ok: call is allowed to sleep
+ *
+ *	Removes the mac entry at the specified index using raw mac interface.
+ *
+ *	Returns a negative error number on failure.
+ */
+int t4_free_raw_mac_filt(struct adapter *adap, unsigned int viid,
+			 const u8 *addr, const u8 *mask, unsigned int idx,
+			 u8 lookup_type, u8 port_id, bool sleep_ok)
+{
+	struct fw_vi_mac_cmd c;
+	struct fw_vi_mac_raw *p = &c.u.raw;
+	u32 val;
+
+	memset(&c, 0, sizeof(c));
+	c.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
+				   FW_CMD_REQUEST_F | FW_CMD_WRITE_F |
+				   FW_CMD_EXEC_V(0) |
+				   FW_VI_MAC_CMD_VIID_V(viid));
+	val = FW_CMD_LEN16_V(1) |
+	      FW_VI_MAC_CMD_ENTRY_TYPE_V(FW_VI_MAC_TYPE_RAW);
+	c.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_FREEMACS_V(0) |
+					  FW_CMD_LEN16_V(val));
+
+	p->raw_idx_pkd = cpu_to_be32(FW_VI_MAC_CMD_RAW_IDX_V(idx) |
+				     FW_VI_MAC_ID_BASED_FREE);
+
+	/* Lookup Type. Outer header: 0, Inner header: 1 */
+	p->data0_pkd = cpu_to_be32(DATALKPTYPE_V(lookup_type) |
+				   DATAPORTNUM_V(port_id));
+	/* Lookup mask and port mask */
+	p->data0m_pkd = cpu_to_be64(DATALKPTYPE_V(DATALKPTYPE_M) |
+				    DATAPORTNUM_V(DATAPORTNUM_M));
+
+	/* Copy the address and the mask */
+	memcpy((u8 *)&p->data1[0] + 2, addr, ETH_ALEN);
+	memcpy((u8 *)&p->data1m[0] + 2, mask, ETH_ALEN);
+
+	return t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, sleep_ok);
+}
+
+/**
+ *	t4_alloc_raw_mac_filt - Adds a mac entry in mps tcam
+ *	@adap: the adapter
+ *	@viid: the VI id
+ *	@mac: the MAC address
+ *	@mask: the mask
+ *	@idx: index at which to add this entry
+ *	@port_id: the port index
+ *	@lookup_type: MAC address for inner (1) or outer (0) header
+ *	@sleep_ok: call is allowed to sleep
+ *
+ *	Adds the mac entry at the specified index using raw mac interface.
+ *
+ *	Returns a negative error number or the allocated index for this mac.
+ */
+int t4_alloc_raw_mac_filt(struct adapter *adap, unsigned int viid,
+			  const u8 *addr, const u8 *mask, unsigned int idx,
+			  u8 lookup_type, u8 port_id, bool sleep_ok)
+{
+	int ret = 0;
+	struct fw_vi_mac_cmd c;
+	struct fw_vi_mac_raw *p = &c.u.raw;
+	u32 val;
+
+	memset(&c, 0, sizeof(c));
+	c.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_VI_MAC_CMD) |
+				   FW_CMD_REQUEST_F | FW_CMD_WRITE_F |
+				   FW_VI_MAC_CMD_VIID_V(viid));
+	val = FW_CMD_LEN16_V(1) |
+	      FW_VI_MAC_CMD_ENTRY_TYPE_V(FW_VI_MAC_TYPE_RAW);
+	c.freemacs_to_len16 = cpu_to_be32(val);
+
+	/* Specify that this is an inner mac address */
+	p->raw_idx_pkd = cpu_to_be32(FW_VI_MAC_CMD_RAW_IDX_V(idx));
+
+	/* Lookup Type. Outer header: 0, Inner header: 1 */
+	p->data0_pkd = cpu_to_be32(DATALKPTYPE_V(lookup_type) |
+				   DATAPORTNUM_V(port_id));
+	/* Lookup mask and port mask */
+	p->data0m_pkd = cpu_to_be64(DATALKPTYPE_V(DATALKPTYPE_M) |
+				    DATAPORTNUM_V(DATAPORTNUM_M));
+
+	/* Copy the address and the mask */
+	memcpy((u8 *)&p->data1[0] + 2, addr, ETH_ALEN);
+	memcpy((u8 *)&p->data1m[0] + 2, mask, ETH_ALEN);
+
+	ret = t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c, sleep_ok);
+	if (ret == 0) {
+		ret = FW_VI_MAC_CMD_RAW_IDX_G(be32_to_cpu(p->raw_idx_pkd));
+		if (ret != idx)
+			ret = -ENOMEM;
+	}
+
+	return ret;
+}
+
+/**
  *	t4_alloc_mac_filt - allocates exact-match filters for MAC addresses
  *	@adap: the adapter
  *	@mbox: mailbox to use for the FW command