commit 5ae2a7a836be660ff1621cce1c46930f19200589
author Roland Dreier <rolandd@cisco.com> Mon Jun 18 08:15:02 2007 -0700
committer Roland Dreier <rolandd@cisco.com> Mon Jun 18 08:15:02 2007 -0700
tree 655b94b9a016cec92f319761afe6bb3000f5f4fa
parent 082dee3216c99a838af40be403799f60bcea2e97

IB/mlx4: Handle FW command interface rev 3

Upcoming firmware introduces command interface revision 3, which
changes the way port capabilities are queried and set.  Update the
driver to handle both the new and old command interfaces by adding a
new MLX4_FLAG_OLD_PORT_CMDS that it is set after querying the firmware
interface revision and then using the correct interface based on the
setting of the flag.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/mlx4/qp.c

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 95d4a9d..355a31f 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -603,24 +603,6 @@
 	return 0;
 }
 
-static void init_port(struct mlx4_ib_dev *dev, int port)
-{
-	struct mlx4_init_port_param param;
-	int err;
-
-	memset(&param, 0, sizeof param);
-
-	param.port_width_cap = dev->dev->caps.port_width_cap;
-	param.vl_cap	     = dev->dev->caps.vl_cap;
-	param.mtu	     = ib_mtu_enum_to_int(dev->dev->caps.mtu_cap);
-	param.max_gid	     = dev->dev->caps.gid_table_len;
-	param.max_pkey	     = dev->dev->caps.pkey_table_len;
-
-	err = mlx4_INIT_PORT(dev->dev, &param, port);
-	if (err)
-		printk(KERN_WARNING "INIT_PORT failed, return code %d.\n", err);
-}
-
 static int to_mlx4_st(enum ib_qp_type type)
 {
 	switch (type) {
@@ -694,9 +676,9 @@
 	path->counter_index = 0xff;
 
 	if (ah->ah_flags & IB_AH_GRH) {
-		if (ah->grh.sgid_index >= dev->dev->caps.gid_table_len) {
+		if (ah->grh.sgid_index >= dev->dev->caps.gid_table_len[port]) {
 			printk(KERN_ERR "sgid_index (%u) too large. max is %d\n",
-			       ah->grh.sgid_index, dev->dev->caps.gid_table_len - 1);
+			       ah->grh.sgid_index, dev->dev->caps.gid_table_len[port] - 1);
 			return -1;
 		}
 
@@ -812,13 +794,14 @@
 	}
 
 	if (attr_mask & IB_QP_ALT_PATH) {
-		if (attr->alt_pkey_index >= dev->dev->caps.pkey_table_len)
-			return -EINVAL;
-
 		if (attr->alt_port_num == 0 ||
 		    attr->alt_port_num > dev->dev->caps.num_ports)
 			return -EINVAL;
 
+		if (attr->alt_pkey_index >=
+		    dev->dev->caps.pkey_table_len[attr->alt_port_num])
+			return -EINVAL;
+
 		if (mlx4_set_path(dev, &attr->alt_ah_attr, &context->alt_path,
 				  attr->alt_port_num))
 			return -EINVAL;
@@ -949,7 +932,9 @@
 	 */
 	if (is_qp0(dev, qp)) {
 		if (cur_state != IB_QPS_RTR && new_state == IB_QPS_RTR)
-			init_port(dev, qp->port);
+			if (mlx4_INIT_PORT(dev->dev, qp->port))
+				printk(KERN_WARNING "INIT_PORT failed for port %d\n",
+				       qp->port);
 
 		if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR &&
 		    (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR))
@@ -1012,16 +997,17 @@
 	if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask))
 		goto out;
 
-	if ((attr_mask & IB_QP_PKEY_INDEX) &&
-	     attr->pkey_index >= dev->dev->caps.pkey_table_len) {
-		goto out;
-	}
-
 	if ((attr_mask & IB_QP_PORT) &&
 	    (attr->port_num == 0 || attr->port_num > dev->dev->caps.num_ports)) {
 		goto out;
 	}
 
+	if (attr_mask & IB_QP_PKEY_INDEX) {
+		int p = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
+		if (attr->pkey_index >= dev->dev->caps.pkey_table_len[p])
+			goto out;
+	}
+
 	if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
 	    attr->max_rd_atomic > dev->dev->caps.max_qp_init_rdma) {
 		goto out;