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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>
This commit is contained in:
Ido Shamay 2015-04-02 16:31:17 +03:00 committed by David S. Miller
parent cda373f484
commit 3742cc6551
4 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -2814,7 +2814,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
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");

7
drivers/net/ethernet/mellanox/mlx4/fw.c
View File

@ -149,6 +149,7 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
[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 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
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 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
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 */

8
drivers/net/ethernet/mellanox/mlx4/main.c
View File

@ -528,6 +528,14 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
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;
}

1
include/linux/mlx4/device.h
View File

@ -207,6 +207,7 @@ enum {
MLX4_DEV_CAP_FLAG2_QP_RATE_LIMIT = 1LL << 23,
MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN = 1LL << 24,
MLX4_DEV_CAP_FLAG2_QOS_VPP = 1LL << 25,
MLX4_DEV_CAP_FLAG2_ETS_CFG = 1LL << 26,
};
enum {