diff options
author | Eli Cohen <eli@mellanox.com> | 2016-03-11 20:58:42 (GMT) |
---|---|---|
committer | Doug Ledford <dledford@redhat.com> | 2016-03-21 21:13:14 (GMT) |
commit | eff901d30e6cebd940072637f112ce4d0090ac12 (patch) | |
tree | a2105d1050701146ce1c7364721fb1bc35834b53 /drivers/infiniband | |
parent | 1f324bff9ba3db276f074169d5b4af9e9c117ba1 (diff) | |
download | linux-eff901d30e6cebd940072637f112ce4d0090ac12.tar.xz |
IB/mlx5: Implement callbacks for manipulating VFs
Implement the IB defined callbacks used to manipulate the policy for the
link state, set GUIDs or get statistics information. This functionality
is added into a new file that will be used to add any SRIOV related
functionality to the mlx5 IB layer.
The following callbacks have been added:
mlx5_ib_get_vf_config
mlx5_ib_set_vf_link_state
mlx5_ib_get_vf_stats
mlx5_ib_set_vf_guid
In addition, publish whether this device is based on a virtual function.
In mlx5 supported devices, virtual functions are implemented as vHCAs.
vHCAs have their own QP number space so it is possible that two vHCAs
will use a QP with the same number at the same time.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r-- | drivers/infiniband/hw/mlx5/Makefile | 2 | ||||
-rw-r--r-- | drivers/infiniband/hw/mlx5/ib_virt.c | 194 | ||||
-rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 10 | ||||
-rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 8 |
4 files changed, 213 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/Makefile b/drivers/infiniband/hw/mlx5/Makefile index 4e85188..7493a83 100644 --- a/drivers/infiniband/hw/mlx5/Makefile +++ b/drivers/infiniband/hw/mlx5/Makefile @@ -1,4 +1,4 @@ obj-$(CONFIG_MLX5_INFINIBAND) += mlx5_ib.o -mlx5_ib-y := main.o cq.o doorbell.o qp.o mem.o srq.o mr.o ah.o mad.o gsi.o +mlx5_ib-y := main.o cq.o doorbell.o qp.o mem.o srq.o mr.o ah.o mad.o gsi.o ib_virt.o mlx5_ib-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += odp.o diff --git a/drivers/infiniband/hw/mlx5/ib_virt.c b/drivers/infiniband/hw/mlx5/ib_virt.c new file mode 100644 index 0000000..c1b9de8 --- /dev/null +++ b/drivers/infiniband/hw/mlx5/ib_virt.c @@ -0,0 +1,194 @@ +/* + * Copyright (c) 2016, Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/module.h> +#include <linux/mlx5/vport.h> +#include "mlx5_ib.h" + +static inline u32 mlx_to_net_policy(enum port_state_policy mlx_policy) +{ + switch (mlx_policy) { + case MLX5_POLICY_DOWN: + return IFLA_VF_LINK_STATE_DISABLE; + case MLX5_POLICY_UP: + return IFLA_VF_LINK_STATE_ENABLE; + case MLX5_POLICY_FOLLOW: + return IFLA_VF_LINK_STATE_AUTO; + default: + return __IFLA_VF_LINK_STATE_MAX; + } +} + +int mlx5_ib_get_vf_config(struct ib_device *device, int vf, u8 port, + struct ifla_vf_info *info) +{ + struct mlx5_ib_dev *dev = to_mdev(device); + struct mlx5_core_dev *mdev = dev->mdev; + struct mlx5_hca_vport_context *rep; + int err; + + rep = kzalloc(sizeof(*rep), GFP_KERNEL); + if (!rep) + return -ENOMEM; + + err = mlx5_query_hca_vport_context(mdev, 1, 1, vf + 1, rep); + if (err) { + mlx5_ib_warn(dev, "failed to query port policy for vf %d (%d)\n", + vf, err); + goto free; + } + memset(info, 0, sizeof(*info)); + info->linkstate = mlx_to_net_policy(rep->policy); + if (info->linkstate == __IFLA_VF_LINK_STATE_MAX) + err = -EINVAL; + +free: + kfree(rep); + return err; +} + +static inline enum port_state_policy net_to_mlx_policy(int policy) +{ + switch (policy) { + case IFLA_VF_LINK_STATE_DISABLE: + return MLX5_POLICY_DOWN; + case IFLA_VF_LINK_STATE_ENABLE: + return MLX5_POLICY_UP; + case IFLA_VF_LINK_STATE_AUTO: + return MLX5_POLICY_FOLLOW; + default: + return MLX5_POLICY_INVALID; + } +} + +int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf, + u8 port, int state) +{ + struct mlx5_ib_dev *dev = to_mdev(device); + struct mlx5_core_dev *mdev = dev->mdev; + struct mlx5_hca_vport_context *in; + int err; + + in = kzalloc(sizeof(*in), GFP_KERNEL); + if (!in) + return -ENOMEM; + + in->policy = net_to_mlx_policy(state); + if (in->policy == MLX5_POLICY_INVALID) { + err = -EINVAL; + goto out; + } + in->field_select = MLX5_HCA_VPORT_SEL_STATE_POLICY; + err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in); + +out: + kfree(in); + return err; +} + +int mlx5_ib_get_vf_stats(struct ib_device *device, int vf, + u8 port, struct ifla_vf_stats *stats) +{ + int out_sz = MLX5_ST_SZ_BYTES(query_vport_counter_out); + struct mlx5_core_dev *mdev; + struct mlx5_ib_dev *dev; + void *out; + int err; + + dev = to_mdev(device); + mdev = dev->mdev; + + out = kzalloc(out_sz, GFP_KERNEL); + if (!out) + return -ENOMEM; + + err = mlx5_core_query_vport_counter(mdev, true, vf, port, out, out_sz); + if (err) + goto ex; + + stats->rx_packets = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.packets); + stats->tx_packets = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.packets); + stats->rx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.octets); + stats->tx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.octets); + stats->multicast = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_multicast.packets); + +ex: + kfree(out); + return err; +} + +static int set_vf_node_guid(struct ib_device *device, int vf, u8 port, u64 guid) +{ + struct mlx5_ib_dev *dev = to_mdev(device); + struct mlx5_core_dev *mdev = dev->mdev; + struct mlx5_hca_vport_context *in; + int err; + + in = kzalloc(sizeof(*in), GFP_KERNEL); + if (!in) + return -ENOMEM; + + in->field_select = MLX5_HCA_VPORT_SEL_NODE_GUID; + in->node_guid = guid; + err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in); + kfree(in); + return err; +} + +static int set_vf_port_guid(struct ib_device *device, int vf, u8 port, u64 guid) +{ + struct mlx5_ib_dev *dev = to_mdev(device); + struct mlx5_core_dev *mdev = dev->mdev; + struct mlx5_hca_vport_context *in; + int err; + + in = kzalloc(sizeof(*in), GFP_KERNEL); + if (!in) + return -ENOMEM; + + in->field_select = MLX5_HCA_VPORT_SEL_PORT_GUID; + in->port_guid = guid; + err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in); + kfree(in); + return err; +} + +int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port, + u64 guid, int type) +{ + if (type == IFLA_VF_IB_NODE_GUID) + return set_vf_node_guid(device, vf, port, guid); + else if (type == IFLA_VF_IB_PORT_GUID) + return set_vf_port_guid(device, vf, port, guid); + + return -EINVAL; +} diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 73cb633..e305990 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -562,6 +562,9 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, if (MLX5_CAP_GEN(mdev, cd)) props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL; + if (!mlx5_core_is_pf(mdev)) + props->device_cap_flags |= IB_DEVICE_VIRTUAL_FUNCTION; + return 0; } @@ -699,6 +702,7 @@ static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port, props->qkey_viol_cntr = rep->qkey_violation_counter; props->subnet_timeout = rep->subnet_timeout; props->init_type_reply = rep->init_type_reply; + props->grh_required = rep->grh_required; err = mlx5_query_port_link_width_oper(mdev, &ib_link_width_oper, port); if (err) @@ -2349,6 +2353,12 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev) dev->ib_dev.map_mr_sg = mlx5_ib_map_mr_sg; dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status; dev->ib_dev.get_port_immutable = mlx5_port_immutable; + if (mlx5_core_is_pf(mdev)) { + dev->ib_dev.get_vf_config = mlx5_ib_get_vf_config; + dev->ib_dev.set_vf_link_state = mlx5_ib_set_vf_link_state; + dev->ib_dev.get_vf_stats = mlx5_ib_get_vf_stats; + dev->ib_dev.set_vf_guid = mlx5_ib_set_vf_guid; + } mlx5_ib_internal_fill_odp_caps(dev); diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 76b2b42..f16c818 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -776,6 +776,14 @@ void mlx5_ib_qp_disable_pagefaults(struct mlx5_ib_qp *qp); void mlx5_ib_qp_enable_pagefaults(struct mlx5_ib_qp *qp); void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start, unsigned long end); +int mlx5_ib_get_vf_config(struct ib_device *device, int vf, + u8 port, struct ifla_vf_info *info); +int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf, + u8 port, int state); +int mlx5_ib_get_vf_stats(struct ib_device *device, int vf, + u8 port, struct ifla_vf_stats *stats); +int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port, + u64 guid, int type); #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev) |