ixgbe: Implement FCoE Tx side offload features in base driver of 82599

This patch implements the FCoE Tx side offload features in ixgbe_main.c
to 82599 using the Tx offload infrastructure code added in the previous
patch. This is achieved by the calling the FCoE Sequence Offload (FSO)
function ixgbe_fso() on the transmit path of ixgbe.

This patch also includes an EEPROM check to make sure the NIC we're loading
on is an offload-enabled SKU.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index d743d0ed5c2e..06859f687f19 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -36,6 +36,10 @@
 #include "ixgbe_type.h"
 #include "ixgbe_common.h"
 #include "ixgbe_dcb.h"
+#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#define IXGBE_FCOE
+#include "ixgbe_fcoe.h"
+#endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */
 #ifdef CONFIG_IXGBE_DCA
 #include <linux/dca.h>
 #endif
@@ -84,6 +88,8 @@
 #define IXGBE_TX_FLAGS_VLAN             (u32)(1 << 1)
 #define IXGBE_TX_FLAGS_TSO              (u32)(1 << 2)
 #define IXGBE_TX_FLAGS_IPV4             (u32)(1 << 3)
+#define IXGBE_TX_FLAGS_FCOE             (u32)(1 << 4)
+#define IXGBE_TX_FLAGS_FSO              (u32)(1 << 5)
 #define IXGBE_TX_FLAGS_VLAN_MASK        0xffff0000
 #define IXGBE_TX_FLAGS_VLAN_PRIO_MASK   0x0000e000
 #define IXGBE_TX_FLAGS_VLAN_SHIFT       16
@@ -298,6 +304,7 @@ struct ixgbe_adapter {
 #define IXGBE_FLAG_IN_SFP_MOD_TASK              (u32)(1 << 25)
 #define IXGBE_FLAG_RSC_CAPABLE                  (u32)(1 << 26)
 #define IXGBE_FLAG_RSC_ENABLED                  (u32)(1 << 27)
+#define IXGBE_FLAG_FCOE_ENABLED                 (u32)(1 << 29)
 
 /* default to trying for four seconds */
 #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ)
@@ -371,5 +378,11 @@ extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
 extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
 extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
 extern void ixgbe_write_eitr(struct ixgbe_adapter *, int, u32);
+#ifdef IXGBE_FCOE
+extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
+extern int ixgbe_fso(struct ixgbe_adapter *adapter,
+                     struct ixgbe_ring *tx_ring, struct sk_buff *skb,
+                     u32 tx_flags, u8 *hdr_len);
+#endif /* IXGBE_FCOE */
 
 #endif /* _IXGBE_H_ */