net/mlx4: Warn users of depracated QoS Firmware
A new capability bit was introduced in the past to to differ devices
using the QoS ETS feature. The old was deprecated since then.
If driver sees device which set only the old capabilty, it will print
warning to user suggesting to upgrade the FW.
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 2a5df0a..be9e07a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2814,7 +2814,7 @@
priv->msg_enable = MLX4_EN_MSG_LEVEL;
#ifdef CONFIG_MLX4_EN_DCB
if (!mlx4_is_slave(priv->mdev->dev)) {
- if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
+ if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) {
dev->dcbnl_ops = &mlx4_en_dcbnl_ops;
} else {
en_info(priv, "enabling only PFC DCB ops\n");
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 94e857e3..16bbd6c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -149,6 +149,7 @@
[23] = "QP rate limiting support",
[24] = "Ethernet Flow control statistics support",
[25] = "Granular QoS per VF support",
+ [26] = "Port ETS Scheduler support",
};
int i;
@@ -900,6 +901,8 @@
MLX4_GET(field, outbox, QUERY_DEV_CAP_VXLAN);
if (field & 1<<3)
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS;
+ if (field & (1 << 5))
+ dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
MLX4_GET(dev_cap->max_icm_sz, outbox,
QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
@@ -1157,9 +1160,9 @@
field &= 0x7f;
MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);
- /* For guests, disable vxlan tunneling */
+ /* For guests, disable vxlan tunneling and QoS support */
MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_VXLAN);
- field &= 0xf7;
+ field &= 0xd7;
MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_VXLAN);
/* For guests, report Blueflame disabled */
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index ee0a670..3becad3 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -528,6 +528,14 @@
dev->caps.alloc_res_qp_mask =
(dev->caps.bf_reg_size ? MLX4_RESERVE_ETH_BF_QP : 0) |
MLX4_RESERVE_A0_QP;
+
+ if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) &&
+ dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
+ mlx4_warn(dev, "Old device ETS support detected\n");
+ mlx4_warn(dev, "Consider upgrading device FW.\n");
+ dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
+ }
+
} else {
dev->caps.alloc_res_qp_mask = 0;
}