RDMA/bnxt_re: Avoid sending the modify QP workaround for latest adapters

The workaround to modify the UD QP from RTS to RTS is required
only for older adapters. Issuing this for latest adapters can caus
some unexpected behavior. Fix it

Fixes: 1801d87 ("RDMA/bnxt_re: Support new 5760X P7 devices")
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20241204075416.478431-4-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/hw/bnxt_re/ib_verbs.c

@@ -2824,7 +2824,8 @@ static int bnxt_re_post_send_shadow_qp(struct bnxt_re_dev *rdev,
 		wr = wr->next;
 	}
 	bnxt_qplib_post_send_db(&qp->qplib_qp);
-	bnxt_ud_qp_hw_stall_workaround(qp);
+	if (!bnxt_qplib_is_chip_gen_p5_p7(qp->rdev->chip_ctx))
+		bnxt_ud_qp_hw_stall_workaround(qp);
 	spin_unlock_irqrestore(&qp->sq_lock, flags);
 	return rc;
 }
@@ -2936,7 +2937,8 @@ int bnxt_re_post_send(struct ib_qp *ib_qp, const struct ib_send_wr *wr,
 		wr = wr->next;
 	}
 	bnxt_qplib_post_send_db(&qp->qplib_qp);
-	bnxt_ud_qp_hw_stall_workaround(qp);
+	if (!bnxt_qplib_is_chip_gen_p5_p7(qp->rdev->chip_ctx))
+		bnxt_ud_qp_hw_stall_workaround(qp);
 	spin_unlock_irqrestore(&qp->sq_lock, flags);
 
 	return rc;