From: Devesh Sharma <devesh.sharma@xxxxxxxxxx>
Emulex NIC driver support for ABI version support in be_roce.c
Signed-off-by: Devesh Sharma <devesh.sharma@xxxxxxxxxx>
---
drivers/net/ethernet/emulex/benet/be_roce.c | 6 ++++++
drivers/net/ethernet/emulex/benet/be_roce.h | 3 +++
2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/emulex/benet/be_roce.c b/drivers/net/ethernet/emulex/benet/be_roce.c
index 9cd5415..aa7f943 100644
--- a/drivers/net/ethernet/emulex/benet/be_roce.c
+++ b/drivers/net/ethernet/emulex/benet/be_roce.c
@@ -35,6 +35,12 @@ static void _be_roce_dev_add(struct be_adapter *adapter)
if (!ocrdma_drv)
return;
+
+ if (ocrdma_drv->be_abi_version != BE_ROCE_ABI_VERSION) {
+ dev_warn(&pdev->dev, "Cannot initialize RoCE due to ocrdma ABI mismatch\n");
+ return;
+ }
+
if (pdev->device == OC_DEVICE_ID5) {
/* only msix is supported on these devices */
if (!msix_enabled(adapter))
diff --git a/drivers/net/ethernet/emulex/benet/be_roce.h b/drivers/net/ethernet/emulex/benet/be_roce.h
index 2cd1129..1bfb161 100644
--- a/drivers/net/ethernet/emulex/benet/be_roce.h
+++ b/drivers/net/ethernet/emulex/benet/be_roce.h
@@ -21,6 +21,8 @@
#include <linux/pci.h>
#include <linux/netdevice.h>
+#define BE_ROCE_ABI_VERSION 1
+
struct ocrdma_dev;
enum be_interrupt_mode {
@@ -52,6 +54,7 @@ struct be_dev_info {
/* ocrdma driver register's the callback functions with nic driver. */
struct ocrdma_driver {
unsigned char name[32];
+ u32 be_abi_version;
struct ocrdma_dev *(*add) (struct be_dev_info *dev_info);
void (*remove) (struct ocrdma_dev *);
void (*state_change_handler) (struct ocrdma_dev *, u32 new_state);
--
1.7.1
--
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