RDMA/cxgb3: Enforce required firmware

The cxgb3 NIC driver can handle more firmware versions than iw_cxgb3,
and since commit 8207befa ("cxgb3: untie strict FW matching") cxgb3
will load with firmware versions that iw_cxgb3 can't handle.  The FW
major number indicates a specific interface between the FW and
iw_cxgb3.  Thus if the major number of the running firmware does not
match the required version compiled into iw_cxgb3, then iw_cxgb3 must
not register that device.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h b/drivers/infiniband/hw/cxgb3/cxio_hal.h
index 656fe47bc84f..e44dc2289471 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.h
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h
@@ -61,6 +61,8 @@
 
 #define T3_MAX_DEV_NAME_LEN 32
 
+#define CXIO_FW_MAJ 7
+
 struct cxio_hal_ctrl_qp {
         u32 wptr;
         u32 rptr;
@@ -108,6 +110,7 @@ struct cxio_rdev {
         struct gen_pool *pbl_pool;
         struct gen_pool *rqt_pool;
         struct list_head entry;
+        struct ch_embedded_info fw_info;
 };
 
 static inline int cxio_num_stags(struct cxio_rdev *rdev_p)