be2net: add FW cmds needed for VxLAN offloads

This patch adds support for the FW cmds needed for VxLAN offloads
on Skyhawk-R:
1) The VxLAN UDP port needs to be configured via the port-desc of
   SET_PROFILE_CONFIG_v1 cmd.
   This patch re-factors the be_set_profile_config() code (used so far
   only for setting VF QoS) to be used to set any type of descriptor.
2) The MANAGE_IFACE_FILTERS cmds is needed to convert a normal interface
   into a tunnel interface. This allows for RSS to work even on the inner
   TCP/UDP headers of VxLAN traffic.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 154 insertions, 58 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index cf5afe72f12f..d1ec15af0d24 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -3503,14 +3503,11 @@ err:
 	return status;
 }
 
-/* Currently only Lancer uses this command and it supports version 0 only
- * Uses sync mcc
- */
-int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps,
-			      u8 domain)
+int be_cmd_set_profile_config(struct be_adapter *adapter, void *desc,
+			      int size, u8 version, u8 domain)
 {
-	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_set_profile_config *req;
+	struct be_mcc_wrb *wrb;
 	int status;
 
 	spin_lock_bh(&adapter->mcc_lock);
@@ -3522,44 +3519,116 @@ int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps,
 	}
 
 	req = embedded_payload(wrb);
-
 	be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 			       OPCODE_COMMON_SET_PROFILE_CONFIG, sizeof(*req),
 			       wrb, NULL);
+	req->hdr.version = version;
 	req->hdr.domain = domain;
 	req->desc_count = cpu_to_le32(1);
-	req->nic_desc.hdr.desc_type = NIC_RESOURCE_DESC_TYPE_V0;
-	req->nic_desc.hdr.desc_len = RESOURCE_DESC_SIZE_V0;
-	req->nic_desc.flags = (1 << QUN) | (1 << IMM) | (1 << NOSV);
-	req->nic_desc.pf_num = adapter->pf_number;
-	req->nic_desc.vf_num = domain;
-
-	/* Mark fields invalid */
-	req->nic_desc.unicast_mac_count = 0xFFFF;
-	req->nic_desc.mcc_count = 0xFFFF;
-	req->nic_desc.vlan_count = 0xFFFF;
-	req->nic_desc.mcast_mac_count = 0xFFFF;
-	req->nic_desc.txq_count = 0xFFFF;
-	req->nic_desc.rq_count = 0xFFFF;
-	req->nic_desc.rssq_count = 0xFFFF;
-	req->nic_desc.lro_count = 0xFFFF;
-	req->nic_desc.cq_count = 0xFFFF;
-	req->nic_desc.toe_conn_count = 0xFFFF;
-	req->nic_desc.eq_count = 0xFFFF;
-	req->nic_desc.link_param = 0xFF;
-	req->nic_desc.bw_min = 0xFFFFFFFF;
-	req->nic_desc.acpi_params = 0xFF;
-	req->nic_desc.wol_param = 0x0F;
-
-	/* Change BW */
-	req->nic_desc.bw_min = cpu_to_le32(bps);
-	req->nic_desc.bw_max = cpu_to_le32(bps);
+	memcpy(req->desc, desc, size);
+
 	status = be_mcc_notify_wait(adapter);
 err:
 	spin_unlock_bh(&adapter->mcc_lock);
 	return status;
 }
 
+/* Mark all fields invalid */
+void be_reset_nic_desc(struct be_nic_res_desc *nic)
+{
+	memset(nic, 0, sizeof(*nic));
+	nic->unicast_mac_count = 0xFFFF;
+	nic->mcc_count = 0xFFFF;
+	nic->vlan_count = 0xFFFF;
+	nic->mcast_mac_count = 0xFFFF;
+	nic->txq_count = 0xFFFF;
+	nic->rq_count = 0xFFFF;
+	nic->rssq_count = 0xFFFF;
+	nic->lro_count = 0xFFFF;
+	nic->cq_count = 0xFFFF;
+	nic->toe_conn_count = 0xFFFF;
+	nic->eq_count = 0xFFFF;
+	nic->link_param = 0xFF;
+	nic->acpi_params = 0xFF;
+	nic->wol_param = 0x0F;
+	nic->bw_min = 0xFFFFFFFF;
+	nic->bw_max = 0xFFFFFFFF;
+}
+
+int be_cmd_config_qos(struct be_adapter *adapter, u32 bps, u8 domain)
+{
+	if (lancer_chip(adapter)) {
+		struct be_nic_res_desc nic_desc;
+
+		be_reset_nic_desc(&nic_desc);
+		nic_desc.hdr.desc_type = NIC_RESOURCE_DESC_TYPE_V0;
+		nic_desc.hdr.desc_len = RESOURCE_DESC_SIZE_V0;
+		nic_desc.flags = (1 << QUN_SHIFT) | (1 << IMM_SHIFT) |
+					(1 << NOSV_SHIFT);
+		nic_desc.pf_num = adapter->pf_number;
+		nic_desc.vf_num = domain;
+		nic_desc.bw_max = cpu_to_le32(bps);
+
+		return be_cmd_set_profile_config(adapter, &nic_desc,
+						 RESOURCE_DESC_SIZE_V0,
+						 0, domain);
+	} else {
+		return be_cmd_set_qos(adapter, bps, domain);
+	}
+}
+
+int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op)
+{
+	struct be_mcc_wrb *wrb;
+	struct be_cmd_req_manage_iface_filters *req;
+	int status;
+
+	if (iface == 0xFFFFFFFF)
+		return -1;
+
+	spin_lock_bh(&adapter->mcc_lock);
+
+	wrb = wrb_from_mccq(adapter);
+	if (!wrb) {
+		status = -EBUSY;
+		goto err;
+	}
+	req = embedded_payload(wrb);
+
+	be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+			       OPCODE_COMMON_MANAGE_IFACE_FILTERS, sizeof(*req),
+			       wrb, NULL);
+	req->op = op;
+	req->target_iface_id = cpu_to_le32(iface);
+
+	status = be_mcc_notify_wait(adapter);
+err:
+	spin_unlock_bh(&adapter->mcc_lock);
+	return status;
+}
+
+int be_cmd_set_vxlan_port(struct be_adapter *adapter, __be16 port)
+{
+	struct be_port_res_desc port_desc;
+
+	memset(&port_desc, 0, sizeof(port_desc));
+	port_desc.hdr.desc_type = PORT_RESOURCE_DESC_TYPE_V1;
+	port_desc.hdr.desc_len = RESOURCE_DESC_SIZE_V1;
+	port_desc.flags = (1 << IMM_SHIFT) | (1 << NOSV_SHIFT);
+	port_desc.link_num = adapter->hba_port_num;
+	if (port) {
+		port_desc.nv_flags = NV_TYPE_VXLAN | (1 << SOCVID_SHIFT) |
+					(1 << RCVID_SHIFT);
+		port_desc.nv_port = swab16(port);
+	} else {
+		port_desc.nv_flags = NV_TYPE_DISABLED;
+		port_desc.nv_port = 0;
+	}
+
+	return be_cmd_set_profile_config(adapter, &port_desc,
+					 RESOURCE_DESC_SIZE_V1, 1, 0);
+}
+
 int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
 		     int vf_num)
 {
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index fda3e8851e17..b60e4d53c1c9 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -222,6 +222,7 @@ struct be_mcc_mailbox {
 #define OPCODE_COMMON_GET_FN_PRIVILEGES			170
 #define OPCODE_COMMON_READ_OBJECT			171
 #define OPCODE_COMMON_WRITE_OBJECT			172
+#define OPCODE_COMMON_MANAGE_IFACE_FILTERS		193
 #define OPCODE_COMMON_GET_IFACE_LIST			194
 #define OPCODE_COMMON_ENABLE_DISABLE_VF			196
 
@@ -1824,18 +1825,33 @@ struct be_cmd_req_set_ext_fat_caps {
 #define PORT_RESOURCE_DESC_TYPE_V1		0x55
 #define MAX_RESOURCE_DESC			264
 
-/* QOS unit number */
-#define QUN					4
-/* Immediate */
-#define IMM					6
-/* No save */
-#define NOSV					7
+#define IMM_SHIFT				6	/* Immediate */
+#define NOSV_SHIFT				7	/* No save */
 
 struct be_res_desc_hdr {
 	u8 desc_type;
 	u8 desc_len;
 } __packed;
 
+struct be_port_res_desc {
+	struct be_res_desc_hdr hdr;
+	u8 rsvd0;
+	u8 flags;
+	u8 link_num;
+	u8 mc_type;
+	u16 rsvd1;
+
+#define NV_TYPE_MASK				0x3	/* bits 0-1 */
+#define NV_TYPE_DISABLED			1
+#define NV_TYPE_VXLAN				3
+#define SOCVID_SHIFT				2	/* Strip outer vlan */
+#define RCVID_SHIFT				4	/* Report vlan */
+	u8 nv_flags;
+	u8 rsvd2;
+	__le16 nv_port;					/* vxlan/gre port */
+	u32 rsvd3[19];
+} __packed;
+
 struct be_pcie_res_desc {
 	struct be_res_desc_hdr hdr;
 	u8 rsvd0;
@@ -1856,6 +1872,8 @@ struct be_pcie_res_desc {
 struct be_nic_res_desc {
 	struct be_res_desc_hdr hdr;
 	u8 rsvd1;
+
+#define QUN_SHIFT				4 /* QoS is in absolute units */
 	u8 flags;
 	u8 vf_num;
 	u8 rsvd2;
@@ -1896,16 +1914,6 @@ enum mc_type {
 	vNIC2 = 0x07
 };
 
-struct be_port_res_desc {
-	struct be_res_desc_hdr hdr;
-	u8 rsvd0;
-	u8 flags;
-	u8 rsvd1;
-	u8 mc_type;
-	u16 rsvd2;
-	u32 rsvd3[20];
-} __packed;
-
 /* Is BE in a multi-channel mode */
 static inline bool be_is_mc(struct be_adapter *adapter)
 {
@@ -1940,7 +1948,7 @@ struct be_cmd_req_set_profile_config {
 	struct be_cmd_req_hdr hdr;
 	u32 rsvd;
 	u32 desc_count;
-	struct be_nic_res_desc nic_desc;
+	u8 desc[RESOURCE_DESC_SIZE_V1];
 };
 
 struct be_cmd_resp_set_profile_config {
@@ -1999,6 +2007,26 @@ struct be_cmd_req_set_ll_link {
 	u32 link_config; /* Bit 0: UP_DOWN, Bit 9: PLINK */
 };
 
+/************** Manage IFACE Filters *******************/
+#define OP_CONVERT_NORMAL_TO_TUNNEL		0
+#define OP_CONVERT_TUNNEL_TO_NORMAL		1
+
+struct be_cmd_req_manage_iface_filters {
+	struct be_cmd_req_hdr hdr;
+	u8  op;
+	u8  rsvd0;
+	u8  flags;
+	u8  rsvd1;
+	u32 tunnel_iface_id;
+	u32 target_iface_id;
+	u8  mac[6];
+	u16 vlan_tag;
+	u32 tenant_id;
+	u32 filter_id;
+	u32 cap_flags;
+	u32 cap_control_flags;
+} __packed;
+
 int be_pci_fnum_get(struct be_adapter *adapter);
 int be_fw_wait_ready(struct be_adapter *adapter);
 int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
@@ -2073,7 +2101,7 @@ int be_cmd_get_seeprom_data(struct be_adapter *adapter,
 int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num,
 			u8 loopback_type, u8 enable);
 int be_cmd_get_phy_info(struct be_adapter *adapter);
-int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
+int be_cmd_config_qos(struct be_adapter *adapter, u32 bps, u8 domain);
 void be_detect_error(struct be_adapter *adapter);
 int be_cmd_get_die_temperature(struct be_adapter *adapter);
 int be_cmd_get_cntl_attributes(struct be_adapter *adapter);
@@ -2114,7 +2142,8 @@ int be_cmd_get_func_config(struct be_adapter *adapter,
 			   struct be_resources *res);
 int be_cmd_get_profile_config(struct be_adapter *adapter,
 			      struct be_resources *res, u8 domain);
-int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps, u8 domain);
+int be_cmd_set_profile_config(struct be_adapter *adapter, void *desc,
+			      int size, u8 version, u8 domain);
 int be_cmd_get_active_profile(struct be_adapter *adapter, u16 *profile);
 int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
 		     int vf_num);
@@ -2122,3 +2151,5 @@ int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain);
 int be_cmd_intr_set(struct be_adapter *adapter, bool intr_enable);
 int be_cmd_set_logical_link_config(struct be_adapter *adapter,
 					  int link_state, u8 domain);
+int be_cmd_set_vxlan_port(struct be_adapter *adapter, __be16 port);
+int be_cmd_manage_iface(struct be_adapter *adapter, u32 iface, u8 op);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index a61f967f9ca1..8790e5497ba0 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1346,11 +1346,7 @@ static int be_set_vf_tx_rate(struct net_device *netdev,
 		return -EINVAL;
 	}
 
-	if (lancer_chip(adapter))
-		status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
-	else
-		status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
-
+	status = be_cmd_config_qos(adapter, rate / 10, vf + 1);
 	if (status)
 		dev_err(&adapter->pdev->dev,
 				"tx rate %d on VF %d failed\n", rate, vf);
@@ -3124,7 +3120,7 @@ static int be_vf_setup(struct be_adapter *adapter)
 		 * Allow full available bandwidth
 		 */
 		if (BE3_chip(adapter) && !old_vfs)
-			be_cmd_set_qos(adapter, 1000, vf+1);
+			be_cmd_config_qos(adapter, 1000, vf + 1);
 
 		status = be_cmd_link_status_query(adapter, &lnk_speed,
 						  NULL, vf + 1);