From 3742cc65512cd4897a63dce94104f9a6e74997a0 Mon Sep 17 00:00:00 2001 From: Ido Shamay Date: Thu, 2 Apr 2015 16:31:17 +0300 Subject: 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 Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 2 +- drivers/net/ethernet/mellanox/mlx4/fw.c | 7 +++++-- drivers/net/ethernet/mellanox/mlx4/main.c | 8 ++++++++ include/linux/mlx4/device.h | 1 + 4 files changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 2a5df0aa2228..be9e07a72193 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -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"); diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index 94e857e39063..16bbd6cdff6c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -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 */ diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index ee0a67069b57..3becad37aec8 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -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; } diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index c37208f7869f..15f46767342e 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -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 { -- cgit v1.2.3-59-g8ed1b