Contributors: 42
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Saeed Mahameed |
1553 |
38.46% |
24 |
17.52% |
| Alex Vesker |
373 |
9.24% |
7 |
5.11% |
| Feras Daoud |
275 |
6.81% |
7 |
5.11% |
| Leon Romanovsky |
273 |
6.76% |
4 |
2.92% |
| Amir Vadai |
222 |
5.50% |
3 |
2.19% |
| Erez Shitrit |
184 |
4.56% |
7 |
5.11% |
| Denis Drozdov |
150 |
3.71% |
1 |
0.73% |
| Dragos Tatulea |
127 |
3.15% |
2 |
1.46% |
| Tariq Toukan |
126 |
3.12% |
13 |
9.49% |
| Maor Gottlieb |
105 |
2.60% |
5 |
3.65% |
| Maxim Mikityanskiy |
97 |
2.40% |
11 |
8.03% |
| Lama Kayal |
88 |
2.18% |
8 |
5.84% |
| Arnd Bergmann |
66 |
1.63% |
2 |
1.46% |
| Michael Guralnik |
65 |
1.61% |
1 |
0.73% |
| Aya Levin |
41 |
1.02% |
3 |
2.19% |
| Hadar Hen Zion |
38 |
0.94% |
3 |
2.19% |
| Roi Dayan |
35 |
0.87% |
5 |
3.65% |
| Jakub Kiciński |
27 |
0.67% |
2 |
1.46% |
| Mohamad Haj Yahia |
22 |
0.54% |
1 |
0.73% |
| Jason Gunthorpe |
18 |
0.45% |
1 |
0.73% |
| Daniel Jurgens |
17 |
0.42% |
2 |
1.46% |
| Moshe Shemesh |
16 |
0.40% |
1 |
0.73% |
| Achiad Shochat |
16 |
0.40% |
2 |
1.46% |
| Eli Cohen |
12 |
0.30% |
1 |
0.73% |
| Jack Morgenstein |
12 |
0.30% |
1 |
0.73% |
| Khalid Manaa |
11 |
0.27% |
1 |
0.73% |
| Guy Truzman |
11 |
0.27% |
1 |
0.73% |
| Moosa Baransi |
10 |
0.25% |
1 |
0.73% |
| Gavi Teitz |
9 |
0.22% |
1 |
0.73% |
| Majd Dibbiny |
6 |
0.15% |
1 |
0.73% |
| Yuval Avnery |
6 |
0.15% |
1 |
0.73% |
| Eran Ben Elisha |
6 |
0.15% |
1 |
0.73% |
| Gal Pressman |
4 |
0.10% |
1 |
0.73% |
| Or Gerlitz |
4 |
0.10% |
3 |
2.19% |
| Stephen Hemminger |
4 |
0.10% |
1 |
0.73% |
| Kamal Heib |
2 |
0.05% |
2 |
1.46% |
| Matthew Finlay |
2 |
0.05% |
1 |
0.73% |
| Mark Bloch |
1 |
0.02% |
1 |
0.73% |
| Talat Batheesh |
1 |
0.02% |
1 |
0.73% |
| Eugenia Emantayev |
1 |
0.02% |
1 |
0.73% |
| Fan Li |
1 |
0.02% |
1 |
0.73% |
| Wei Yongjun |
1 |
0.02% |
1 |
0.73% |
| Total |
4038 |
|
137 |
|
/*
* Copyright (c) 2017, 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 <rdma/ib_verbs.h>
#include <linux/mlx5/fs.h>
#include "en.h"
#include "en/params.h"
#include "ipoib.h"
#include "en/fs_ethtool.h"
#define IB_DEFAULT_Q_KEY 0xb1b
#define MLX5I_PARAMS_DEFAULT_LOG_RQ_SIZE 9
static int mlx5i_open(struct net_device *netdev);
static int mlx5i_close(struct net_device *netdev);
static int mlx5i_change_mtu(struct net_device *netdev, int new_mtu);
static const struct net_device_ops mlx5i_netdev_ops = {
.ndo_open = mlx5i_open,
.ndo_stop = mlx5i_close,
.ndo_get_stats64 = mlx5i_get_stats,
.ndo_init = mlx5i_dev_init,
.ndo_uninit = mlx5i_dev_cleanup,
.ndo_change_mtu = mlx5i_change_mtu,
.ndo_eth_ioctl = mlx5i_ioctl,
};
/* IPoIB mlx5 netdev profile */
static void mlx5i_build_nic_params(struct mlx5_core_dev *mdev,
struct mlx5e_params *params)
{
/* Override RQ params as IPoIB supports only LINKED LIST RQ for now */
MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_STRIDING_RQ, false);
mlx5e_set_rq_type(mdev, params);
mlx5e_init_rq_type_params(mdev, params);
/* RQ size in ipoib by default is 512 */
params->log_rq_mtu_frames = is_kdump_kernel() ?
MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE :
MLX5I_PARAMS_DEFAULT_LOG_RQ_SIZE;
params->packet_merge.type = MLX5E_PACKET_MERGE_NONE;
params->hard_mtu = MLX5_IB_GRH_BYTES + MLX5_IPOIB_HARD_LEN;
/* CQE compression is not supported for IPoIB */
params->rx_cqe_compress_def = false;
MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def);
}
/* Called directly after IPoIB netdevice was created to initialize SW structs */
int mlx5i_init(struct mlx5_core_dev *mdev, struct net_device *netdev)
{
struct mlx5e_priv *priv = mlx5i_epriv(netdev);
netif_carrier_off(netdev);
mlx5e_set_netdev_mtu_boundaries(priv);
netdev->mtu = netdev->max_mtu;
mlx5e_build_nic_params(priv, NULL, netdev->mtu);
mlx5i_build_nic_params(mdev, &priv->channels.params);
mlx5e_timestamp_init(priv);
/* netdev init */
netdev->hw_features |= NETIF_F_SG;
netdev->hw_features |= NETIF_F_IP_CSUM;
netdev->hw_features |= NETIF_F_IPV6_CSUM;
netdev->hw_features |= NETIF_F_GRO;
netdev->hw_features |= NETIF_F_TSO;
netdev->hw_features |= NETIF_F_TSO6;
netdev->hw_features |= NETIF_F_RXCSUM;
netdev->hw_features |= NETIF_F_RXHASH;
netdev->netdev_ops = &mlx5i_netdev_ops;
netdev->ethtool_ops = &mlx5i_ethtool_ops;
return 0;
}
/* Called directly before IPoIB netdevice is destroyed to cleanup SW structs */
void mlx5i_cleanup(struct mlx5e_priv *priv)
{
mlx5e_priv_cleanup(priv);
}
static void mlx5i_grp_sw_update_stats(struct mlx5e_priv *priv)
{
struct rtnl_link_stats64 s = {};
int i, j;
for (i = 0; i < priv->stats_nch; i++) {
struct mlx5e_channel_stats *channel_stats;
struct mlx5e_rq_stats *rq_stats;
channel_stats = priv->channel_stats[i];
rq_stats = &channel_stats->rq;
s.rx_packets += rq_stats->packets;
s.rx_bytes += rq_stats->bytes;
for (j = 0; j < priv->max_opened_tc; j++) {
struct mlx5e_sq_stats *sq_stats = &channel_stats->sq[j];
s.tx_packets += sq_stats->packets;
s.tx_bytes += sq_stats->bytes;
s.tx_dropped += sq_stats->dropped;
}
}
memset(&priv->stats.sw, 0, sizeof(s));
priv->stats.sw.rx_packets = s.rx_packets;
priv->stats.sw.rx_bytes = s.rx_bytes;
priv->stats.sw.tx_packets = s.tx_packets;
priv->stats.sw.tx_bytes = s.tx_bytes;
priv->stats.sw.tx_queue_dropped = s.tx_dropped;
}
void mlx5i_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
struct mlx5e_priv *priv = mlx5i_epriv(dev);
struct mlx5e_sw_stats *sstats = &priv->stats.sw;
mlx5i_grp_sw_update_stats(priv);
stats->rx_packets = sstats->rx_packets;
stats->rx_bytes = sstats->rx_bytes;
stats->tx_packets = sstats->tx_packets;
stats->tx_bytes = sstats->tx_bytes;
stats->tx_dropped = sstats->tx_queue_dropped;
}
struct net_device *mlx5i_parent_get(struct net_device *netdev)
{
struct mlx5e_priv *priv = mlx5i_epriv(netdev);
struct mlx5i_priv *ipriv, *parent_ipriv;
struct net_device *parent_dev;
int parent_ifindex;
ipriv = priv->ppriv;
parent_ifindex = netdev->netdev_ops->ndo_get_iflink(netdev);
parent_dev = dev_get_by_index(dev_net(netdev), parent_ifindex);
if (!parent_dev)
return NULL;
parent_ipriv = netdev_priv(parent_dev);
ASSERT_RTNL();
parent_ipriv->num_sub_interfaces++;
ipriv->parent_dev = parent_dev;
return parent_dev;
}
void mlx5i_parent_put(struct net_device *netdev)
{
struct mlx5e_priv *priv = mlx5i_epriv(netdev);
struct mlx5i_priv *ipriv, *parent_ipriv;
ipriv = priv->ppriv;
parent_ipriv = netdev_priv(ipriv->parent_dev);
ASSERT_RTNL();
parent_ipriv->num_sub_interfaces--;
dev_put(ipriv->parent_dev);
}
int mlx5i_init_underlay_qp(struct mlx5e_priv *priv)
{
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5i_priv *ipriv = priv->ppriv;
int ret;
{
u32 in[MLX5_ST_SZ_DW(rst2init_qp_in)] = {};
u32 *qpc;
qpc = MLX5_ADDR_OF(rst2init_qp_in, in, qpc);
MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
MLX5_SET(qpc, qpc, primary_address_path.pkey_index,
ipriv->pkey_index);
MLX5_SET(qpc, qpc, primary_address_path.vhca_port_num, 1);
MLX5_SET(qpc, qpc, q_key, IB_DEFAULT_Q_KEY);
MLX5_SET(rst2init_qp_in, in, opcode, MLX5_CMD_OP_RST2INIT_QP);
MLX5_SET(rst2init_qp_in, in, qpn, ipriv->qpn);
ret = mlx5_cmd_exec_in(mdev, rst2init_qp, in);
if (ret)
goto err_qp_modify_to_err;
}
{
u32 in[MLX5_ST_SZ_DW(init2rtr_qp_in)] = {};
MLX5_SET(init2rtr_qp_in, in, opcode, MLX5_CMD_OP_INIT2RTR_QP);
MLX5_SET(init2rtr_qp_in, in, qpn, ipriv->qpn);
ret = mlx5_cmd_exec_in(mdev, init2rtr_qp, in);
if (ret)
goto err_qp_modify_to_err;
}
{
u32 in[MLX5_ST_SZ_DW(rtr2rts_qp_in)] = {};
MLX5_SET(rtr2rts_qp_in, in, opcode, MLX5_CMD_OP_RTR2RTS_QP);
MLX5_SET(rtr2rts_qp_in, in, qpn, ipriv->qpn);
ret = mlx5_cmd_exec_in(mdev, rtr2rts_qp, in);
if (ret)
goto err_qp_modify_to_err;
}
return 0;
err_qp_modify_to_err:
{
u32 in[MLX5_ST_SZ_DW(qp_2err_in)] = {};
MLX5_SET(qp_2err_in, in, opcode, MLX5_CMD_OP_2ERR_QP);
MLX5_SET(qp_2err_in, in, qpn, ipriv->qpn);
mlx5_cmd_exec_in(mdev, qp_2err, in);
}
return ret;
}
void mlx5i_uninit_underlay_qp(struct mlx5e_priv *priv)
{
struct mlx5i_priv *ipriv = priv->ppriv;
struct mlx5_core_dev *mdev = priv->mdev;
u32 in[MLX5_ST_SZ_DW(qp_2rst_in)] = {};
MLX5_SET(qp_2rst_in, in, opcode, MLX5_CMD_OP_2RST_QP);
MLX5_SET(qp_2rst_in, in, qpn, ipriv->qpn);
mlx5_cmd_exec_in(mdev, qp_2rst, in);
}
#define MLX5_QP_ENHANCED_ULP_STATELESS_MODE 2
int mlx5i_create_underlay_qp(struct mlx5e_priv *priv)
{
const unsigned char *dev_addr = priv->netdev->dev_addr;
u32 out[MLX5_ST_SZ_DW(create_qp_out)] = {};
u32 in[MLX5_ST_SZ_DW(create_qp_in)] = {};
struct mlx5i_priv *ipriv = priv->ppriv;
void *addr_path;
int qpn = 0;
int ret = 0;
void *qpc;
if (MLX5_CAP_GEN(priv->mdev, mkey_by_name)) {
qpn = (dev_addr[1] << 16) + (dev_addr[2] << 8) + dev_addr[3];
MLX5_SET(create_qp_in, in, input_qpn, qpn);
}
qpc = MLX5_ADDR_OF(create_qp_in, in, qpc);
MLX5_SET(qpc, qpc, ts_format, mlx5_get_qp_default_ts(priv->mdev));
MLX5_SET(qpc, qpc, st, MLX5_QP_ST_UD);
MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
MLX5_SET(qpc, qpc, ulp_stateless_offload_mode,
MLX5_QP_ENHANCED_ULP_STATELESS_MODE);
addr_path = MLX5_ADDR_OF(qpc, qpc, primary_address_path);
MLX5_SET(ads, addr_path, vhca_port_num, 1);
MLX5_SET(ads, addr_path, grh, 1);
MLX5_SET(create_qp_in, in, opcode, MLX5_CMD_OP_CREATE_QP);
ret = mlx5_cmd_exec_inout(priv->mdev, create_qp, in, out);
if (ret)
return ret;
ipriv->qpn = MLX5_GET(create_qp_out, out, qpn);
return 0;
}
void mlx5i_destroy_underlay_qp(struct mlx5_core_dev *mdev, u32 qpn)
{
u32 in[MLX5_ST_SZ_DW(destroy_qp_in)] = {};
MLX5_SET(destroy_qp_in, in, opcode, MLX5_CMD_OP_DESTROY_QP);
MLX5_SET(destroy_qp_in, in, qpn, qpn);
mlx5_cmd_exec_in(mdev, destroy_qp, in);
}
int mlx5i_update_nic_rx(struct mlx5e_priv *priv)
{
return mlx5e_refresh_tirs(priv, true, true);
}
int mlx5i_create_tis(struct mlx5_core_dev *mdev, u32 underlay_qpn, u32 *tisn)
{
u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {};
void *tisc;
tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
MLX5_SET(tisc, tisc, underlay_qpn, underlay_qpn);
return mlx5e_create_tis(mdev, in, tisn);
}
static int mlx5i_init_tx(struct mlx5e_priv *priv)
{
struct mlx5i_priv *ipriv = priv->ppriv;
int err;
err = mlx5i_create_underlay_qp(priv);
if (err) {
mlx5_core_warn(priv->mdev, "create underlay QP failed, %d\n", err);
return err;
}
err = mlx5i_create_tis(priv->mdev, ipriv->qpn, &priv->tisn[0][0]);
if (err) {
mlx5_core_warn(priv->mdev, "create tis failed, %d\n", err);
goto err_destroy_underlay_qp;
}
return 0;
err_destroy_underlay_qp:
mlx5i_destroy_underlay_qp(priv->mdev, ipriv->qpn);
return err;
}
static void mlx5i_cleanup_tx(struct mlx5e_priv *priv)
{
struct mlx5i_priv *ipriv = priv->ppriv;
mlx5e_destroy_tis(priv->mdev, priv->tisn[0][0]);
mlx5i_destroy_underlay_qp(priv->mdev, ipriv->qpn);
}
static int mlx5i_create_flow_steering(struct mlx5e_priv *priv)
{
struct mlx5_flow_namespace *ns =
mlx5_get_flow_namespace(priv->mdev, MLX5_FLOW_NAMESPACE_KERNEL);
int err;
if (!ns)
return -EINVAL;
mlx5e_fs_set_ns(priv->fs, ns, false);
err = mlx5e_arfs_create_tables(priv->fs, priv->rx_res,
!!(priv->netdev->hw_features & NETIF_F_NTUPLE));
if (err) {
netdev_err(priv->netdev, "Failed to create arfs tables, err=%d\n",
err);
priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
}
err = mlx5e_create_ttc_table(priv->fs, priv->rx_res);
if (err) {
netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
err);
goto err_destroy_arfs_tables;
}
mlx5e_ethtool_init_steering(priv->fs);
return 0;
err_destroy_arfs_tables:
mlx5e_arfs_destroy_tables(priv->fs,
!!(priv->netdev->hw_features & NETIF_F_NTUPLE));
return err;
}
static void mlx5i_destroy_flow_steering(struct mlx5e_priv *priv)
{
mlx5e_destroy_ttc_table(priv->fs);
mlx5e_arfs_destroy_tables(priv->fs,
!!(priv->netdev->hw_features & NETIF_F_NTUPLE));
mlx5e_ethtool_cleanup_steering(priv->fs);
}
static int mlx5i_init_rx(struct mlx5e_priv *priv)
{
struct mlx5_core_dev *mdev = priv->mdev;
int err;
priv->fs = mlx5e_fs_init(priv->profile, mdev,
!test_bit(MLX5E_STATE_DESTROYING, &priv->state),
priv->dfs_root);
if (!priv->fs) {
netdev_err(priv->netdev, "FS allocation failed\n");
return -ENOMEM;
}
priv->rx_res = mlx5e_rx_res_alloc();
if (!priv->rx_res) {
err = -ENOMEM;
goto err_free_fs;
}
mlx5e_create_q_counters(priv);
err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
if (err) {
mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
goto err_destroy_q_counters;
}
err = mlx5e_rx_res_init(priv->rx_res, priv->mdev, 0,
priv->max_nch, priv->drop_rq.rqn,
&priv->channels.params.packet_merge,
priv->channels.params.num_channels);
if (err)
goto err_close_drop_rq;
err = mlx5i_create_flow_steering(priv);
if (err)
goto err_destroy_rx_res;
return 0;
err_destroy_rx_res:
mlx5e_rx_res_destroy(priv->rx_res);
err_close_drop_rq:
mlx5e_close_drop_rq(&priv->drop_rq);
err_destroy_q_counters:
mlx5e_destroy_q_counters(priv);
mlx5e_rx_res_free(priv->rx_res);
priv->rx_res = NULL;
err_free_fs:
mlx5e_fs_cleanup(priv->fs);
return err;
}
static void mlx5i_cleanup_rx(struct mlx5e_priv *priv)
{
mlx5i_destroy_flow_steering(priv);
mlx5e_rx_res_destroy(priv->rx_res);
mlx5e_close_drop_rq(&priv->drop_rq);
mlx5e_destroy_q_counters(priv);
mlx5e_rx_res_free(priv->rx_res);
priv->rx_res = NULL;
mlx5e_fs_cleanup(priv->fs);
}
/* The stats groups order is opposite to the update_stats() order calls */
static mlx5e_stats_grp_t mlx5i_stats_grps[] = {
&MLX5E_STATS_GRP(sw),
&MLX5E_STATS_GRP(qcnt),
&MLX5E_STATS_GRP(vnic_env),
&MLX5E_STATS_GRP(vport),
&MLX5E_STATS_GRP(802_3),
&MLX5E_STATS_GRP(2863),
&MLX5E_STATS_GRP(2819),
&MLX5E_STATS_GRP(phy),
&MLX5E_STATS_GRP(pcie),
&MLX5E_STATS_GRP(per_prio),
&MLX5E_STATS_GRP(pme),
&MLX5E_STATS_GRP(channels),
&MLX5E_STATS_GRP(per_port_buff_congest),
};
static unsigned int mlx5i_stats_grps_num(struct mlx5e_priv *priv)
{
return ARRAY_SIZE(mlx5i_stats_grps);
}
static const struct mlx5e_profile mlx5i_nic_profile = {
.init = mlx5i_init,
.cleanup = mlx5i_cleanup,
.init_tx = mlx5i_init_tx,
.cleanup_tx = mlx5i_cleanup_tx,
.init_rx = mlx5i_init_rx,
.cleanup_rx = mlx5i_cleanup_rx,
.enable = NULL, /* mlx5i_enable */
.disable = NULL, /* mlx5i_disable */
.update_rx = mlx5i_update_nic_rx,
.update_stats = NULL, /* mlx5i_update_stats */
.update_carrier = NULL, /* no HW update in IB link */
.rx_handlers = &mlx5i_rx_handlers,
.max_tc = MLX5I_MAX_NUM_TC,
.stats_grps = mlx5i_stats_grps,
.stats_grps_num = mlx5i_stats_grps_num,
};
/* mlx5i netdev NDos */
static int mlx5i_change_mtu(struct net_device *netdev, int new_mtu)
{
struct mlx5e_priv *priv = mlx5i_epriv(netdev);
struct mlx5e_params new_params;
int err = 0;
mutex_lock(&priv->state_lock);
new_params = priv->channels.params;
new_params.sw_mtu = new_mtu;
err = mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, true);
if (err)
goto out;
netdev->mtu = new_params.sw_mtu;
out:
mutex_unlock(&priv->state_lock);
return err;
}
int mlx5i_dev_init(struct net_device *dev)
{
struct mlx5e_priv *priv = mlx5i_epriv(dev);
struct mlx5i_priv *ipriv = priv->ppriv;
u8 addr_mod[3];
/* Set dev address using underlay QP */
addr_mod[0] = (ipriv->qpn >> 16) & 0xff;
addr_mod[1] = (ipriv->qpn >> 8) & 0xff;
addr_mod[2] = (ipriv->qpn) & 0xff;
dev_addr_mod(dev, 1, addr_mod, sizeof(addr_mod));
/* Add QPN to net-device mapping to HT */
mlx5i_pkey_add_qpn(dev, ipriv->qpn);
return 0;
}
int mlx5i_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct mlx5e_priv *priv = mlx5i_epriv(dev);
switch (cmd) {
case SIOCSHWTSTAMP:
return mlx5e_hwstamp_set(priv, ifr);
case SIOCGHWTSTAMP:
return mlx5e_hwstamp_get(priv, ifr);
default:
return -EOPNOTSUPP;
}
}
void mlx5i_dev_cleanup(struct net_device *dev)
{
struct mlx5e_priv *priv = mlx5i_epriv(dev);
struct mlx5i_priv *ipriv = priv->ppriv;
mlx5i_uninit_underlay_qp(priv);
/* Delete QPN to net-device mapping from HT */
mlx5i_pkey_del_qpn(dev, ipriv->qpn);
}
static int mlx5i_open(struct net_device *netdev)
{
struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
struct mlx5i_priv *ipriv = epriv->ppriv;
struct mlx5_core_dev *mdev = epriv->mdev;
int err;
mutex_lock(&epriv->state_lock);
set_bit(MLX5E_STATE_OPENED, &epriv->state);
err = mlx5i_init_underlay_qp(epriv);
if (err) {
mlx5_core_warn(mdev, "prepare underlay qp state failed, %d\n", err);
goto err_clear_state_opened_flag;
}
err = mlx5_fs_add_rx_underlay_qpn(mdev, ipriv->qpn);
if (err) {
mlx5_core_warn(mdev, "attach underlay qp to ft failed, %d\n", err);
goto err_reset_qp;
}
err = mlx5e_open_channels(epriv, &epriv->channels);
if (err)
goto err_remove_fs_underlay_qp;
err = epriv->profile->update_rx(epriv);
if (err)
goto err_close_channels;
mlx5e_activate_priv_channels(epriv);
mutex_unlock(&epriv->state_lock);
return 0;
err_close_channels:
mlx5e_close_channels(&epriv->channels);
err_remove_fs_underlay_qp:
mlx5_fs_remove_rx_underlay_qpn(mdev, ipriv->qpn);
err_reset_qp:
mlx5i_uninit_underlay_qp(epriv);
err_clear_state_opened_flag:
clear_bit(MLX5E_STATE_OPENED, &epriv->state);
mutex_unlock(&epriv->state_lock);
return err;
}
static int mlx5i_close(struct net_device *netdev)
{
struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
struct mlx5i_priv *ipriv = epriv->ppriv;
struct mlx5_core_dev *mdev = epriv->mdev;
/* May already be CLOSED in case a previous configuration operation
* (e.g RX/TX queue size change) that involves close&open failed.
*/
mutex_lock(&epriv->state_lock);
if (!test_bit(MLX5E_STATE_OPENED, &epriv->state))
goto unlock;
clear_bit(MLX5E_STATE_OPENED, &epriv->state);
netif_carrier_off(epriv->netdev);
mlx5_fs_remove_rx_underlay_qpn(mdev, ipriv->qpn);
mlx5e_deactivate_priv_channels(epriv);
mlx5e_close_channels(&epriv->channels);
mlx5i_uninit_underlay_qp(epriv);
unlock:
mutex_unlock(&epriv->state_lock);
return 0;
}
/* IPoIB RDMA netdev callbacks */
static int mlx5i_attach_mcast(struct net_device *netdev, struct ib_device *hca,
union ib_gid *gid, u16 lid, int set_qkey,
u32 qkey)
{
struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
struct mlx5_core_dev *mdev = epriv->mdev;
struct mlx5i_priv *ipriv = epriv->ppriv;
int err;
mlx5_core_dbg(mdev, "attaching QPN 0x%x, MGID %pI6\n", ipriv->qpn,
gid->raw);
err = mlx5_core_attach_mcg(mdev, gid, ipriv->qpn);
if (err)
mlx5_core_warn(mdev, "failed attaching QPN 0x%x, MGID %pI6\n",
ipriv->qpn, gid->raw);
if (set_qkey) {
mlx5_core_dbg(mdev, "%s setting qkey 0x%x\n",
netdev->name, qkey);
ipriv->qkey = qkey;
}
return err;
}
static int mlx5i_detach_mcast(struct net_device *netdev, struct ib_device *hca,
union ib_gid *gid, u16 lid)
{
struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
struct mlx5_core_dev *mdev = epriv->mdev;
struct mlx5i_priv *ipriv = epriv->ppriv;
int err;
mlx5_core_dbg(mdev, "detaching QPN 0x%x, MGID %pI6\n", ipriv->qpn,
gid->raw);
err = mlx5_core_detach_mcg(mdev, gid, ipriv->qpn);
if (err)
mlx5_core_dbg(mdev, "failed detaching QPN 0x%x, MGID %pI6\n",
ipriv->qpn, gid->raw);
return err;
}
static int mlx5i_xmit(struct net_device *dev, struct sk_buff *skb,
struct ib_ah *address, u32 dqpn)
{
struct mlx5e_priv *epriv = mlx5i_epriv(dev);
struct mlx5e_txqsq *sq = epriv->txq2sq[skb_get_queue_mapping(skb)];
struct mlx5_ib_ah *mah = to_mah(address);
struct mlx5i_priv *ipriv = epriv->ppriv;
mlx5i_sq_xmit(sq, skb, &mah->av, dqpn, ipriv->qkey, netdev_xmit_more());
return NETDEV_TX_OK;
}
static void mlx5i_set_pkey_index(struct net_device *netdev, int id)
{
struct mlx5i_priv *ipriv = netdev_priv(netdev);
ipriv->pkey_index = (u16)id;
}
static int mlx5i_check_required_hca_cap(struct mlx5_core_dev *mdev)
{
if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_IB)
return -EOPNOTSUPP;
if (!MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads)) {
mlx5_core_warn(mdev, "IPoIB enhanced offloads are not supported\n");
return -EOPNOTSUPP;
}
return 0;
}
static void mlx5_rdma_netdev_free(struct net_device *netdev)
{
struct mlx5e_priv *priv = mlx5i_epriv(netdev);
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5i_priv *ipriv = priv->ppriv;
const struct mlx5e_profile *profile = priv->profile;
mlx5e_detach_netdev(priv);
profile->cleanup(priv);
if (!ipriv->sub_interface) {
mlx5i_pkey_qpn_ht_cleanup(netdev);
mlx5e_destroy_mdev_resources(mdev);
}
}
static bool mlx5_is_sub_interface(struct mlx5_core_dev *mdev)
{
return mdev->mlx5e_res.hw_objs.pdn != 0;
}
static const struct mlx5e_profile *mlx5_get_profile(struct mlx5_core_dev *mdev)
{
if (mlx5_is_sub_interface(mdev))
return mlx5i_pkey_get_profile();
return &mlx5i_nic_profile;
}
static int mlx5_rdma_setup_rn(struct ib_device *ibdev, u32 port_num,
struct net_device *netdev, void *param)
{
struct mlx5_core_dev *mdev = (struct mlx5_core_dev *)param;
const struct mlx5e_profile *prof = mlx5_get_profile(mdev);
struct mlx5i_priv *ipriv;
struct mlx5e_priv *epriv;
struct rdma_netdev *rn;
int err;
ipriv = netdev_priv(netdev);
epriv = mlx5i_epriv(netdev);
ipriv->sub_interface = mlx5_is_sub_interface(mdev);
if (!ipriv->sub_interface) {
err = mlx5i_pkey_qpn_ht_init(netdev);
if (err) {
mlx5_core_warn(mdev, "allocate qpn_to_netdev ht failed\n");
return err;
}
/* This should only be called once per mdev */
err = mlx5e_create_mdev_resources(mdev);
if (err)
goto destroy_ht;
}
err = mlx5e_priv_init(epriv, prof, netdev, mdev);
if (err)
goto destroy_mdev_resources;
epriv->profile = prof;
epriv->ppriv = ipriv;
prof->init(mdev, netdev);
err = mlx5e_attach_netdev(epriv);
if (err)
goto detach;
netif_carrier_off(netdev);
/* set rdma_netdev func pointers */
rn = &ipriv->rn;
rn->hca = ibdev;
rn->send = mlx5i_xmit;
rn->attach_mcast = mlx5i_attach_mcast;
rn->detach_mcast = mlx5i_detach_mcast;
rn->set_id = mlx5i_set_pkey_index;
netdev->priv_destructor = mlx5_rdma_netdev_free;
netdev->needs_free_netdev = 1;
return 0;
detach:
prof->cleanup(epriv);
if (ipriv->sub_interface)
return err;
destroy_mdev_resources:
mlx5e_destroy_mdev_resources(mdev);
destroy_ht:
mlx5i_pkey_qpn_ht_cleanup(netdev);
return err;
}
int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
struct ib_device *device,
struct rdma_netdev_alloc_params *params)
{
int nch;
int rc;
rc = mlx5i_check_required_hca_cap(mdev);
if (rc)
return rc;
nch = mlx5e_get_max_num_channels(mdev);
*params = (struct rdma_netdev_alloc_params){
.sizeof_priv = sizeof(struct mlx5i_priv) +
sizeof(struct mlx5e_priv),
.txqs = nch * MLX5E_MAX_NUM_TC,
.rxqs = nch,
.param = mdev,
.initialize_rdma_netdev = mlx5_rdma_setup_rn,
};
return 0;
}
EXPORT_SYMBOL(mlx5_rdma_rn_get_params);