be2net: adding support for Lancer family of CNAs

Key changes are:
- EQ ids are not assigned consecutively in Lancer. So, fix mapping of MSIx
  vector to EQ-id.
- BAR mapping and some req locations different for Lancer.
- TCP,UDP,IP checksum fields must be compulsorily set in TX wrb for TSO in
  Lancer.
- CEV_IST reg not present in Lancer; so, peek into event queue to check for
  new entries
- cq_create and mcc_create cmd interface is different for Lancer; handle
  accordingly

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

1 files changed, 26 insertions, 9 deletions

diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index 4594a28b1f66..b61a1dfebcaf 100644
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -38,14 +38,17 @@
 #define BE_NAME			"ServerEngines BladeEngine2 10Gbps NIC"
 #define BE3_NAME		"ServerEngines BladeEngine3 10Gbps NIC"
 #define OC_NAME			"Emulex OneConnect 10Gbps NIC"
-#define OC_NAME1		"Emulex OneConnect 10Gbps NIC (be3)"
+#define OC_NAME_BE		OC_NAME	"(be3)"
+#define OC_NAME_LANCER		OC_NAME "(Lancer)"
 #define DRV_DESC		"ServerEngines BladeEngine 10Gbps NIC Driver"
 
 #define BE_VENDOR_ID 		0x19a2
+#define EMULEX_VENDOR_ID	0x10df
 #define BE_DEVICE_ID1		0x211
 #define BE_DEVICE_ID2		0x221
-#define OC_DEVICE_ID1		0x700
-#define OC_DEVICE_ID2		0x710
+#define OC_DEVICE_ID1		0x700	/* Device Id for BE2 cards */
+#define OC_DEVICE_ID2		0x710	/* Device Id for BE3 cards */
+#define OC_DEVICE_ID3		0xe220	/* Device id for Lancer cards */
 
 static inline char *nic_name(struct pci_dev *pdev)
 {
@@ -53,7 +56,9 @@ static inline char *nic_name(struct pci_dev *pdev)
 	case OC_DEVICE_ID1:
 		return OC_NAME;
 	case OC_DEVICE_ID2:
-		return OC_NAME1;
+		return OC_NAME_BE;
+	case OC_DEVICE_ID3:
+		return OC_NAME_LANCER;
 	case BE_DEVICE_ID2:
 		return BE3_NAME;
 	default:
@@ -149,6 +154,7 @@ struct be_eq_obj {
 	u16 min_eqd;		/* in usecs */
 	u16 max_eqd;		/* in usecs */
 	u16 cur_eqd;		/* in usecs */
+	u8  msix_vec_idx;
 
 	struct napi_struct napi;
 };
@@ -260,6 +266,8 @@ struct be_adapter {
 	u32 num_rx_qs;
 	u32 big_page_size;	/* Compounded page size shared by rx wrbs */
 
+	u8 msix_vec_next_idx;
+
 	struct vlan_group *vlan_grp;
 	u16 vlans_added;
 	u16 max_vlans;	/* Number of vlans supported */
@@ -299,8 +307,8 @@ struct be_adapter {
 
 	bool sriov_enabled;
 	struct be_vf_cfg vf_cfg[BE_MAX_VF];
-	u8 base_eq_id;
 	u8 is_virtfn;
+	u32 sli_family;
 };
 
 #define be_physfn(adapter) (!adapter->is_virtfn)
@@ -309,6 +317,8 @@ struct be_adapter {
 #define BE_GEN2 2
 #define BE_GEN3 3
 
+#define lancer_chip(adapter)		(adapter->pdev->device == OC_DEVICE_ID3)
+
 extern const struct ethtool_ops be_ethtool_ops;
 
 #define tx_stats(adapter)		(&adapter->tx_stats)
@@ -416,10 +426,17 @@ static inline u8 is_udp_pkt(struct sk_buff *skb)
 static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
 {
 	u8 data;
-
-	pci_write_config_byte(adapter->pdev, 0xFE, 0xAA);
-	pci_read_config_byte(adapter->pdev, 0xFE, &data);
-	adapter->is_virtfn = (data != 0xAA);
+	u32 sli_intf;
+
+	if (lancer_chip(adapter)) {
+		pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET,
+								&sli_intf);
+		adapter->is_virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
+	} else {
+		pci_write_config_byte(adapter->pdev, 0xFE, 0xAA);
+		pci_read_config_byte(adapter->pdev, 0xFE, &data);
+		adapter->is_virtfn = (data != 0xAA);
+	}
 }
 
 static inline void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)