RDMA/irdma: Set the CQ read threshold for GEN 1

The CQ shadow read threshold is currently not set for GEN 2.  This could
cause an invalid CQ overflow condition, so remove the GEN check that
exclused GEN 1.

Fixes: b48c24c ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Mustafa Ismail <[email protected]>
Signed-off-by: Shiraz Saleem <[email protected]>
Signed-off-by: Sindhu Devale <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>

Author: mustafakismail

drivers/infiniband/hw/irdma/verbs.c

@@ -2186,9 +2186,8 @@ static int irdma_create_cq(struct ib_cq *ibcq,
 		info.cq_base_pa = iwcq->kmem.pa;
 	}
 
-	if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
-		info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,
-						 (u32)IRDMA_MAX_CQ_READ_THRESH);
+	info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,
+					 (u32)IRDMA_MAX_CQ_READ_THRESH);
 
 	if (irdma_sc_cq_init(cq, &info)) {
 		ibdev_dbg(&iwdev->ibdev, "VERBS: init cq fail\n");