netxen: implement generic pcie semaphore functions

Implement common function for locking/unlocking 8 hardware
semaphores used for serializing access to shared resouces
on a NIC board by different PCI functions.

As by definition, callers of these semaphore API can be
put to sleep till the semaphore is locked.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/netxen/netxen_nic_hdr.h b/drivers/net/netxen/netxen_nic_hdr.h
index c4a4a8ba14f4..92f5970c9aa9 100644
--- a/drivers/net/netxen/netxen_nic_hdr.h
+++ b/drivers/net/netxen/netxen_nic_hdr.h
@@ -899,16 +899,24 @@ enum {
 
 #define PCIE_DCR                0x00d8
 
+#define PCIE_SEM0_LOCK          (0x1c000)
+#define PCIE_SEM0_UNLOCK        (0x1c004)
+#define PCIE_SEM1_LOCK          (0x1c008)
+#define PCIE_SEM1_UNLOCK        (0x1c00c)
 #define PCIE_SEM2_LOCK          (0x1c010)       /* Flash lock   */
 #define PCIE_SEM2_UNLOCK        (0x1c014)       /* Flash unlock */
 #define PCIE_SEM3_LOCK          (0x1c018)       /* Phy lock     */
 #define PCIE_SEM3_UNLOCK        (0x1c01c)       /* Phy unlock   */
+#define PCIE_SEM4_LOCK          (0x1c020)
+#define PCIE_SEM4_UNLOCK        (0x1c024)
 #define PCIE_SEM5_LOCK          (0x1c028)       /* API lock     */
 #define PCIE_SEM5_UNLOCK        (0x1c02c)       /* API unlock   */
 #define PCIE_SEM6_LOCK          (0x1c030)       /* sw lock      */
 #define PCIE_SEM6_UNLOCK        (0x1c034)       /* sw unlock    */
 #define PCIE_SEM7_LOCK          (0x1c038)       /* crb win lock */
 #define PCIE_SEM7_UNLOCK        (0x1c03c)       /* crbwin unlock*/
+#define PCIE_SEM_LOCK(N)        (PCIE_SEM0_LOCK + 8*(N))
+#define PCIE_SEM_UNLOCK(N)      (PCIE_SEM0_UNLOCK + 8*(N))
 
 #define PCIE_SETUP_FUNCTION     (0x12040)
 #define PCIE_SETUP_FUNCTION2    (0x12048)