qlge: Add support for varied pcie function numbers.

Currently we support only PCIe NIC functions zero and one, and FCoE
functions as 3 and 4. Future configurations can mix these up in any
fashion.
This patch removes the 0-1 dependancy and allows usage of any of the 4
functions. We also find the alternate NIC function (if exist) and
determine our port number based on the comparison of the two functions:
Lower function number gets first port, higher function gets second port.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h
index 258ef449ea88..5eb52ca08980 100644
--- a/drivers/net/qlge/qlge.h
+++ b/drivers/net/qlge/qlge.h
@@ -65,6 +65,17 @@
 
 #define DB_PAGE_SIZE 4096
 
+/* MPI test register definitions. This register
+ * is used for determining alternate NIC function's
+ * PCI->func number.
+ */
+enum {
+        MPI_TEST_FUNC_PORT_CFG = 0x1002,
+        MPI_TEST_NIC1_FUNC_SHIFT = 1,
+        MPI_TEST_NIC2_FUNC_SHIFT = 5,
+        MPI_TEST_NIC_FUNC_MASK = 0x00000007,
+};
+
 /*
  * Processor Address Register (PROC_ADDR) bit definitions.
  */
@@ -1432,6 +1443,8 @@ struct ql_adapter {
         u32 chip_rev_id;
         u32 fw_rev_id;
         u32 func;               /* PCI function for this adapter */
+        u32 alt_func;           /* PCI function for alternate adapter */
+        u32 port;               /* Port number this adapter */
 
         spinlock_t adapter_lock;
         spinlock_t hw_lock;
@@ -1581,6 +1594,7 @@ void ql_mpi_idc_work(struct work_struct *work);
 void ql_mpi_port_cfg_work(struct work_struct *work);
 int ql_mb_get_fw_state(struct ql_adapter *qdev);
 int ql_cam_route_initialize(struct ql_adapter *qdev);
+int ql_read_mpi_reg(struct ql_adapter *qdev, u32 reg, u32 *data);
 int ql_mb_about_fw(struct ql_adapter *qdev);
 
 #if 1