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freebsd-nq/sys/dev/mlx4/mlx4_ib/mlx4_ib_main.c
Ed Maste f0473bfa82 mlx(4): remove date from log message 
Further to r310425, go one step further and just remove the date.

Reviewed by:	hselasky
Differential Revision:	https://reviews.freebsd.org/D8888
2016-12-23 20:14:05 +00:00

2896 lines
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/*
* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2007, 2008 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.
*/
#define LINUXKPI_PARAM_PREFIX mlx4_
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
#include <linux/if_vlan.h>
#include <linux/fs.h>
#include <net/ipv6.h>
#include <rdma/ib_smi.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_user_verbs_exp.h>
#include <rdma/ib_addr.h>
#include <dev/mlx4/driver.h>
#include <dev/mlx4/cmd.h>
#include <linux/sched.h>
#include <linux/page.h>
#include <linux/printk.h>
#include "mlx4_ib.h"
#include "mlx4_exp.h"
#include "user.h"
#include "wc.h"
#define DRV_NAME MLX4_IB_DRV_NAME
#define DRV_VERSION "1.0"
#define MLX4_IB_DRIVER_PROC_DIR_NAME "driver/mlx4_ib"
#define MLX4_IB_MRS_PROC_DIR_NAME "mrs"
#define MLX4_IB_FLOW_MAX_PRIO 0xFFF
#define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF
MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
MODULE_LICENSE("Dual BSD/GPL");
#ifdef __linux__
MODULE_VERSION(DRV_VERSION);
#endif
int mlx4_ib_sm_guid_assign = 1;
module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)");
enum {
MAX_NUM_STR_BITMAP = 1 << 15,
DEFAULT_TBL_VAL = -1
};
static struct mlx4_dbdf2val_lst dev_assign_str = {
.name = "dev_assign_str param",
.num_vals = 1,
.def_val = {DEFAULT_TBL_VAL},
.range = {0, MAX_NUM_STR_BITMAP - 1}
};
module_param_string(dev_assign_str, dev_assign_str.str,
sizeof(dev_assign_str.str), 0444);
MODULE_PARM_DESC(dev_assign_str,
"Map device function numbers to IB device numbers (e.g. '0000:04:00.0-0,002b:1c:0b.a-1,...').\n"
"\t\tHexadecimal digits for the device function (e.g. 002b:1c:0b.a) and decimal for IB device numbers (e.g. 1).\n"
"\t\tMax supported devices - 32");
static unsigned long *dev_num_str_bitmap;
static spinlock_t dev_num_str_lock;
static const char mlx4_ib_version[] =
DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
DRV_VERSION "\n";
struct update_gid_work {
struct work_struct work;
union ib_gid gids[128];
struct mlx4_ib_dev *dev;
int port;
};
struct dev_rec {
int bus;
int dev;
int func;
int nr;
};
static int dr_active;
static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, struct net_device*,
unsigned long);
static u8 mlx4_ib_get_dev_port(struct net_device *dev,
struct mlx4_ib_dev *ibdev);
static struct workqueue_struct *wq;
static void init_query_mad(struct ib_smp *mad)
{
mad->base_version = 1;
mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED;
mad->class_version = 1;
mad->method = IB_MGMT_METHOD_GET;
}
static union ib_gid zgid;
static int check_flow_steering_support(struct mlx4_dev *dev)
{
int eth_num_ports = 0;
int ib_num_ports = 0;
int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED;
if (dmfs) {
int i;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
eth_num_ports++;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
ib_num_ports++;
dmfs &= (!ib_num_ports ||
(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) &&
(!eth_num_ports ||
(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN));
if (ib_num_ports && mlx4_is_mfunc(dev)) {
dmfs = 0;
}
}
return dmfs;
}
int mlx4_ib_query_device(struct ib_device *ibdev,
struct ib_device_attr *props)
{
struct mlx4_ib_dev *dev = to_mdev(ibdev);
struct ib_smp *in_mad = NULL;
struct ib_smp *out_mad = NULL;
int err = -ENOMEM;
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
1, NULL, NULL, in_mad, out_mad);
if (err)
goto out;
memset(props, 0, sizeof *props);
props->fw_ver = dev->dev->caps.fw_ver;
props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
IB_DEVICE_PORT_ACTIVE_EVENT |
IB_DEVICE_SYS_IMAGE_GUID |
IB_DEVICE_RC_RNR_NAK_GEN |
IB_DEVICE_BLOCK_MULTICAST_LOOPBACK |
IB_DEVICE_SHARED_MR;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)
props->device_cap_flags |= IB_DEVICE_UD_TSO;
if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
(dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
props->device_cap_flags |= IB_DEVICE_XRC;
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_CROSS_CHANNEL)
props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL;
if (check_flow_steering_support(dev->dev))
props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
props->device_cap_flags |= IB_DEVICE_QPG;
if (dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) {
props->device_cap_flags |= IB_DEVICE_UD_RSS;
props->max_rss_tbl_sz = dev->dev->caps.max_rss_tbl_sz;
}
if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW)
props->device_cap_flags |= IB_DEVICE_MEM_WINDOW;
if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B)
props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B;
else
props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A;
}
props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
0xffffff;
props->vendor_part_id = dev->dev->pdev->device;
props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32));
memcpy(&props->sys_image_guid, out_mad->data + 4, 8);
props->max_mr_size = ~0ull;
props->page_size_cap = dev->dev->caps.page_size_cap;
props->max_qp = dev->dev->quotas.qp;
props->max_qp_wr = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
props->max_sge = min(dev->dev->caps.max_sq_sg,
dev->dev->caps.max_rq_sg);
props->max_cq = dev->dev->quotas.cq;
props->max_cqe = dev->dev->caps.max_cqes;
props->max_mr = dev->dev->quotas.mpt;
props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma;
props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
props->max_srq = dev->dev->quotas.srq;
props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1;
props->max_srq_sge = dev->dev->caps.max_srq_sge;
props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay;
props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
IB_ATOMIC_HCA : IB_ATOMIC_NONE;
props->masked_atomic_cap = props->atomic_cap;
props->max_pkeys = dev->dev->caps.pkey_table_len[1];
props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
props->max_mcast_grp;
props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
props->hca_core_clock = dev->dev->caps.hca_core_clock;
if (dev->dev->caps.hca_core_clock > 0)
props->comp_mask |= IB_DEVICE_ATTR_WITH_HCA_CORE_CLOCK;
if (dev->dev->caps.cq_timestamp) {
props->timestamp_mask = 0xFFFFFFFFFFFF;
props->comp_mask |= IB_DEVICE_ATTR_WITH_TIMESTAMP_MASK;
}
out:
kfree(in_mad);
kfree(out_mad);
return err;
}
static enum rdma_link_layer
mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
{
struct mlx4_dev *dev = to_mdev(device)->dev;
return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
}
static int ib_link_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props, int netw_view)
{
struct ib_smp *in_mad = NULL;
struct ib_smp *out_mad = NULL;
int ext_active_speed;
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
int err = -ENOMEM;
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
in_mad, out_mad);
if (err)
goto out;
props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16));
props->lmc = out_mad->data[34] & 0x7;
props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18));
props->sm_sl = out_mad->data[36] & 0xf;
props->state = out_mad->data[32] & 0xf;
props->phys_state = out_mad->data[33] >> 4;
props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20));
if (netw_view)
props->gid_tbl_len = out_mad->data[50];
else
props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz;
props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46));
props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48));
props->active_width = out_mad->data[31] & 0xf;
props->active_speed = out_mad->data[35] >> 4;
props->max_mtu = out_mad->data[41] & 0xf;
props->active_mtu = out_mad->data[36] >> 4;
props->subnet_timeout = out_mad->data[51] & 0x1f;
props->max_vl_num = out_mad->data[37] >> 4;
props->init_type_reply = out_mad->data[41] >> 4;
/* Check if extended speeds (EDR/FDR/...) are supported */
if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
ext_active_speed = out_mad->data[62] >> 4;
switch (ext_active_speed) {
case 1:
props->active_speed = IB_SPEED_FDR;
break;
case 2:
props->active_speed = IB_SPEED_EDR;
break;
}
}
/* If reported active speed is QDR, check if is FDR-10 */
if (props->active_speed == IB_SPEED_QDR) {
init_query_mad(in_mad);
in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
NULL, NULL, in_mad, out_mad);
if (err)
goto out;
/* Checking LinkSpeedActive for FDR-10 */
if (out_mad->data[15] & 0x1)
props->active_speed = IB_SPEED_FDR10;
}
/* Avoid wrong speed value returned by FW if the IB link is down. */
if (props->state == IB_PORT_DOWN)
props->active_speed = IB_SPEED_SDR;
out:
kfree(in_mad);
kfree(out_mad);
return err;
}
static u8 state_to_phys_state(enum ib_port_state state)
{
return state == IB_PORT_ACTIVE ? 5 : 3;
}
static int eth_link_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props, int netw_view)
{
struct mlx4_ib_dev *mdev = to_mdev(ibdev);
struct mlx4_ib_iboe *iboe = &mdev->iboe;
struct net_device *ndev;
enum ib_mtu tmp;
struct mlx4_cmd_mailbox *mailbox;
unsigned long flags;
int err = 0;
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err)
goto out;
props->active_width = (((u8 *)mailbox->buf)[5] == 0x40) ?
IB_WIDTH_4X : IB_WIDTH_1X;
props->active_speed = IB_SPEED_QDR;
props->port_cap_flags = IB_PORT_CM_SUP;
if (netw_view)
props->gid_tbl_len = MLX4_ROCE_MAX_GIDS;
else
props->gid_tbl_len = mdev->dev->caps.gid_table_len[port];
props->max_msg_sz = mdev->dev->caps.max_msg_sz;
props->pkey_tbl_len = 1;
props->max_mtu = IB_MTU_4096;
props->max_vl_num = 2;
props->state = IB_PORT_DOWN;
props->phys_state = state_to_phys_state(props->state);
props->active_mtu = IB_MTU_256;
spin_lock_irqsave(&iboe->lock, flags);
ndev = iboe->netdevs[port - 1];
if (!ndev)
goto out_unlock;
tmp = iboe_get_mtu(ndev->if_mtu);
props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
props->state = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
IB_PORT_ACTIVE : IB_PORT_DOWN;
props->phys_state = state_to_phys_state(props->state);
out_unlock:
spin_unlock_irqrestore(&iboe->lock, flags);
out:
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
return err;
}
int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props, int netw_view)
{
int err;
memset(props, 0, sizeof *props);
err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
ib_link_query_port(ibdev, port, props, netw_view) :
eth_link_query_port(ibdev, port, props, netw_view);
return err;
}
static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props)
{
/* returns host view */
return __mlx4_ib_query_port(ibdev, port, props, 0);
}
int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
union ib_gid *gid, int netw_view)
{
struct ib_smp *in_mad = NULL;
struct ib_smp *out_mad = NULL;
int err = -ENOMEM;
struct mlx4_ib_dev *dev = to_mdev(ibdev);
int clear = 0;
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_PORT_INFO;
in_mad->attr_mod = cpu_to_be32(port);
if (mlx4_is_mfunc(dev->dev) && netw_view)
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
if (err)
goto out;
memcpy(gid->raw, out_mad->data + 8, 8);
if (mlx4_is_mfunc(dev->dev) && !netw_view) {
if (index) {
/* For any index > 0, return the null guid */
err = 0;
clear = 1;
goto out;
}
}
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_GUID_INFO;
in_mad->attr_mod = cpu_to_be32(index / 8);
err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
NULL, NULL, in_mad, out_mad);
if (err)
goto out;
memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
out:
if (clear)
memset(gid->raw + 8, 0, 8);
kfree(in_mad);
kfree(out_mad);
return err;
}
static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index,
union ib_gid *gid)
{
struct mlx4_ib_dev *dev = to_mdev(ibdev);
*gid = dev->iboe.gid_table[port - 1][index];
return 0;
}
static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
union ib_gid *gid)
{
if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
else
return iboe_query_gid(ibdev, port, index, gid);
}
int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
u16 *pkey, int netw_view)
{
struct ib_smp *in_mad = NULL;
struct ib_smp *out_mad = NULL;
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
int err = -ENOMEM;
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE;
in_mad->attr_mod = cpu_to_be32(index / 32);
if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
in_mad, out_mad);
if (err)
goto out;
*pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
out:
kfree(in_mad);
kfree(out_mad);
return err;
}
static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
{
return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
}
static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
struct ib_device_modify *props)
{
struct mlx4_cmd_mailbox *mailbox;
unsigned long flags;
if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
return -EOPNOTSUPP;
if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
return 0;
if (mlx4_is_slave(to_mdev(ibdev)->dev))
return -EOPNOTSUPP;
spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
memcpy(ibdev->node_desc, props->node_desc, 64);
spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
/*
* If possible, pass node desc to FW, so it can generate
* a 144 trap. If cmd fails, just ignore.
*/
mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
if (IS_ERR(mailbox))
return 0;
memset(mailbox->buf, 0, 256);
memcpy(mailbox->buf, props->node_desc, 64);
mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
return 0;
}
static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
u32 cap_mask)
{
struct mlx4_cmd_mailbox *mailbox;
int err;
u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memset(mailbox->buf, 0, 256);
if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
*(u8 *) mailbox->buf = !!reset_qkey_viols << 6;
((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
} else {
((u8 *) mailbox->buf)[3] = !!reset_qkey_viols;
((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
}
err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
mlx4_free_cmd_mailbox(dev->dev, mailbox);
return err;
}
static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
struct ib_port_modify *props)
{
struct ib_port_attr attr;
u32 cap_mask;
int err;
mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
err = mlx4_ib_query_port(ibdev, port, &attr);
if (err)
goto out;
cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
~props->clr_port_cap_mask;
err = mlx4_SET_PORT(to_mdev(ibdev), port,
!!(mask & IB_PORT_RESET_QKEY_CNTR),
cap_mask);
out:
mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
return err;
}
static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
struct ib_udata *udata)
{
struct mlx4_ib_dev *dev = to_mdev(ibdev);
struct mlx4_ib_ucontext *context;
struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3;
struct mlx4_ib_alloc_ucontext_resp resp;
int err;
if (!dev->ib_active)
return ERR_PTR(-EAGAIN);
if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
resp_v3.qp_tab_size = dev->dev->caps.num_qps;
if (mlx4_wc_enabled()) {
resp_v3.bf_reg_size = dev->dev->caps.bf_reg_size;
resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
} else {
resp_v3.bf_reg_size = 0;
resp_v3.bf_regs_per_page = 0;
}
} else {
resp.dev_caps = dev->dev->caps.userspace_caps;
resp.qp_tab_size = dev->dev->caps.num_qps;
if (mlx4_wc_enabled()) {
resp.bf_reg_size = dev->dev->caps.bf_reg_size;
resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
} else {
resp.bf_reg_size = 0;
resp.bf_regs_per_page = 0;
}
resp.cqe_size = dev->dev->caps.cqe_size;
}
context = kmalloc(sizeof *context, GFP_KERNEL);
if (!context)
return ERR_PTR(-ENOMEM);
err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
if (err) {
kfree(context);
return ERR_PTR(err);
}
INIT_LIST_HEAD(&context->db_page_list);
mutex_init(&context->db_page_mutex);
if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
else
err = ib_copy_to_udata(udata, &resp, sizeof(resp));
if (err) {
mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
kfree(context);
return ERR_PTR(-EFAULT);
}
return &context->ibucontext;
}
static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
{
struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
kfree(context);
return 0;
}
/* XXX FBSD has no support for get_unmapped_area function */
#if 0
static unsigned long mlx4_ib_get_unmapped_area(struct file *file,
unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
struct mm_struct *mm;
struct vm_area_struct *vma;
unsigned long start_addr;
unsigned long page_size_order;
unsigned long command;
mm = current->mm;
if (addr)
return current->mm->get_unmapped_area(file, addr, len,
pgoff, flags);
/* Last 8 bits hold the command others are data per that command */
command = pgoff & MLX4_IB_MMAP_CMD_MASK;
if (command != MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES)
return current->mm->get_unmapped_area(file, addr, len,
pgoff, flags);
page_size_order = pgoff >> MLX4_IB_MMAP_CMD_BITS;
/* code is based on the huge-pages get_unmapped_area code */
start_addr = mm->free_area_cache;
if (len <= mm->cached_hole_size)
start_addr = TASK_UNMAPPED_BASE;
full_search:
addr = ALIGN(start_addr, 1 << page_size_order);
for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
/* At this point: (!vma || addr < vma->vm_end). */
if (TASK_SIZE - len < addr) {
/*
* Start a new search - just in case we missed
* some holes.
*/
if (start_addr != TASK_UNMAPPED_BASE) {
start_addr = TASK_UNMAPPED_BASE;
goto full_search;
}
return -ENOMEM;
}
if (!vma || addr + len <= vma->vm_start)
return addr;
addr = ALIGN(vma->vm_end, 1 << page_size_order);
}
}
#endif
static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
{
struct mlx4_ib_dev *dev = to_mdev(context->device);
/* Last 8 bits hold the command others are data per that command */
unsigned long command = vma->vm_pgoff & MLX4_IB_MMAP_CMD_MASK;
if (command < MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES) {
/* compatibility handling for commands 0 & 1*/
if (vma->vm_end - vma->vm_start != PAGE_SIZE)
return -EINVAL;
}
if (command == MLX4_IB_MMAP_UAR_PAGE) {
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (io_remap_pfn_range(vma, vma->vm_start,
to_mucontext(context)->uar.pfn,
PAGE_SIZE, vma->vm_page_prot))
return -EAGAIN;
} else if (command == MLX4_IB_MMAP_BLUE_FLAME_PAGE &&
dev->dev->caps.bf_reg_size != 0) {
vma->vm_page_prot = pgprot_wc(vma->vm_page_prot);
if (io_remap_pfn_range(vma, vma->vm_start,
to_mucontext(context)->uar.pfn +
dev->dev->caps.num_uars,
PAGE_SIZE, vma->vm_page_prot))
return -EAGAIN;
} else if (command == MLX4_IB_MMAP_GET_HW_CLOCK) {
struct mlx4_clock_params params;
int ret;
ret = mlx4_get_internal_clock_params(dev->dev, &params);
if (ret)
return ret;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (io_remap_pfn_range(vma, vma->vm_start,
(pci_resource_start(dev->dev->pdev,
params.bar) + params.offset)
>> PAGE_SHIFT,
PAGE_SIZE, vma->vm_page_prot))
return -EAGAIN;
} else
return -EINVAL;
return 0;
}
static int mlx4_ib_ioctl(struct ib_ucontext *context, unsigned int cmd,
unsigned long arg)
{
struct mlx4_ib_dev *dev = to_mdev(context->device);
int ret;
int offset;
switch (cmd) {
case MLX4_IOCHWCLOCKOFFSET: {
struct mlx4_clock_params params;
int ret;
ret = mlx4_get_internal_clock_params(dev->dev, &params);
if (!ret) {
offset = params.offset % PAGE_SIZE;
ret = put_user(offset,
(int *)arg);
return sizeof(int);
} else {
return ret;
}
}
default: {
pr_err("mlx4_ib: invalid ioctl %u command with arg %lX\n",
cmd, arg);
return -ENOTTY;
}
}
return ret;
}
static int mlx4_ib_query_values(struct ib_device *device, int q_values,
struct ib_device_values *values)
{
struct mlx4_ib_dev *dev = to_mdev(device);
cycle_t cycles;
values->values_mask = 0;
if (q_values & IBV_VALUES_HW_CLOCK) {
cycles = mlx4_read_clock(dev->dev);
if (cycles < 0) {
values->hwclock = cycles & CORE_CLOCK_MASK;
values->values_mask |= IBV_VALUES_HW_CLOCK;
}
q_values &= ~IBV_VALUES_HW_CLOCK;
}
if (q_values)
return -ENOTTY;
return 0;
}
static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
struct ib_ucontext *context,
struct ib_udata *udata)
{
struct mlx4_ib_pd *pd;
int err;
pd = kmalloc(sizeof *pd, GFP_KERNEL);
if (!pd)
return ERR_PTR(-ENOMEM);
err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
if (err) {
kfree(pd);
return ERR_PTR(err);
}
if (context)
if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
kfree(pd);
return ERR_PTR(-EFAULT);
}
return &pd->ibpd;
}
static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
{
mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
kfree(pd);
return 0;
}
static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
struct ib_ucontext *context,
struct ib_udata *udata)
{
struct mlx4_ib_xrcd *xrcd;
int err;
if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
return ERR_PTR(-ENOSYS);
xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
if (!xrcd)
return ERR_PTR(-ENOMEM);
err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
if (err)
goto err1;
xrcd->pd = ib_alloc_pd(ibdev);
if (IS_ERR(xrcd->pd)) {
err = PTR_ERR(xrcd->pd);
goto err2;
}
xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0);
if (IS_ERR(xrcd->cq)) {
err = PTR_ERR(xrcd->cq);
goto err3;
}
return &xrcd->ibxrcd;
err3:
ib_dealloc_pd(xrcd->pd);
err2:
mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
err1:
kfree(xrcd);
return ERR_PTR(err);
}
static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
{
ib_destroy_cq(to_mxrcd(xrcd)->cq);
ib_dealloc_pd(to_mxrcd(xrcd)->pd);
mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
kfree(xrcd);
return 0;
}
static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
{
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
struct mlx4_ib_gid_entry *ge;
ge = kzalloc(sizeof *ge, GFP_KERNEL);
if (!ge)
return -ENOMEM;
ge->gid = *gid;
if (mlx4_ib_add_mc(mdev, mqp, gid)) {
ge->port = mqp->port;
ge->added = 1;
}
mutex_lock(&mqp->mutex);
list_add_tail(&ge->list, &mqp->gid_list);
mutex_unlock(&mqp->mutex);
return 0;
}
int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
union ib_gid *gid)
{
u8 mac[6];
struct net_device *ndev;
int ret = 0;
if (!mqp->port)
return 0;
spin_lock(&mdev->iboe.lock);
ndev = mdev->iboe.netdevs[mqp->port - 1];
if (ndev)
dev_hold(ndev);
spin_unlock(&mdev->iboe.lock);
if (ndev) {
rdma_get_mcast_mac((struct in6_addr *)gid, mac);
rtnl_lock();
dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac, 6, 0);
ret = 1;
rtnl_unlock();
dev_put(ndev);
}
return ret;
}
struct mlx4_ib_steering {
struct list_head list;
u64 reg_id;
union ib_gid gid;
};
static int parse_flow_attr(struct mlx4_dev *dev,
union ib_flow_spec *ib_spec,
struct _rule_hw *mlx4_spec)
{
enum mlx4_net_trans_rule_id type;
switch (ib_spec->type) {
case IB_FLOW_SPEC_ETH:
type = MLX4_NET_TRANS_RULE_ID_ETH;
memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac,
ETH_ALEN);
memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac,
ETH_ALEN);
mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag;
mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag;
break;
case IB_FLOW_SPEC_IB:
type = MLX4_NET_TRANS_RULE_ID_IB;
mlx4_spec->ib.l3_qpn = ib_spec->ib.val.l3_type_qpn;
mlx4_spec->ib.qpn_mask = ib_spec->ib.mask.l3_type_qpn;
memcpy(&mlx4_spec->ib.dst_gid, ib_spec->ib.val.dst_gid, 16);
memcpy(&mlx4_spec->ib.dst_gid_msk,
ib_spec->ib.mask.dst_gid, 16);
break;
case IB_FLOW_SPEC_IPV4:
type = MLX4_NET_TRANS_RULE_ID_IPV4;
mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip;
mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip;
mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip;
mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip;
break;
case IB_FLOW_SPEC_TCP:
case IB_FLOW_SPEC_UDP:
type = ib_spec->type == IB_FLOW_SPEC_TCP ?
MLX4_NET_TRANS_RULE_ID_TCP :
MLX4_NET_TRANS_RULE_ID_UDP;
mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port;
mlx4_spec->tcp_udp.dst_port_msk =
ib_spec->tcp_udp.mask.dst_port;
mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port;
mlx4_spec->tcp_udp.src_port_msk =
ib_spec->tcp_udp.mask.src_port;
break;
default:
return -EINVAL;
}
if (map_sw_to_hw_steering_id(dev, type) < 0 ||
hw_rule_sz(dev, type) < 0)
return -EINVAL;
mlx4_spec->id = cpu_to_be16(map_sw_to_hw_steering_id(dev, type));
mlx4_spec->size = hw_rule_sz(dev, type) >> 2;
return hw_rule_sz(dev, type);
}
static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
int domain,
enum mlx4_net_trans_promisc_mode flow_type,
u64 *reg_id)
{
int ret, i;
int size = 0;
void *ib_flow;
struct mlx4_ib_dev *mdev = to_mdev(qp->device);
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_net_trans_rule_hw_ctrl *ctrl;
size_t rule_size = sizeof(struct mlx4_net_trans_rule_hw_ctrl) +
(sizeof(struct _rule_hw) * flow_attr->num_of_specs);
static const u16 __mlx4_domain[] = {
[IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS,
[IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL,
[IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS,
[IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC,
};
if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) {
pr_err("Invalid priority value.\n");
return -EINVAL;
}
if (domain >= IB_FLOW_DOMAIN_NUM) {
pr_err("Invalid domain value.\n");
return -EINVAL;
}
if (map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0)
return -EINVAL;
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
if (IS_ERR(mailbox))
return PTR_ERR(mailbox);
memset(mailbox->buf, 0, rule_size);
ctrl = mailbox->buf;
ctrl->prio = cpu_to_be16(__mlx4_domain[domain] |
flow_attr->priority);
ctrl->type = map_sw_to_hw_steering_mode(mdev->dev, flow_type);
ctrl->port = flow_attr->port;
ctrl->qpn = cpu_to_be32(qp->qp_num);
if (flow_attr->flags & IB_FLOW_ATTR_FLAGS_ALLOW_LOOP_BACK)
ctrl->flags = (1 << 3);
ib_flow = flow_attr + 1;
size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
for (i = 0; i < flow_attr->num_of_specs; i++) {
ret = parse_flow_attr(mdev->dev, ib_flow, mailbox->buf + size);
if (ret < 0) {
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
return -EINVAL;
}
ib_flow += ((union ib_flow_spec *)ib_flow)->size;
size += ret;
}
ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (ret == -ENOMEM)
pr_err("mcg table is full. Fail to register network rule.\n");
else if (ret == -ENXIO)
pr_err("Device managed flow steering is disabled. Fail to register network rule.\n");
else if (ret)
pr_err("Invalid argumant. Fail to register network rule.\n");
mlx4_free_cmd_mailbox(mdev->dev, mailbox);
return ret;
}
static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id)
{
int err;
err = mlx4_cmd(dev, reg_id, 0, 0,
MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
MLX4_CMD_NATIVE);
if (err)
pr_err("Fail to detach network rule. registration id = 0x%llx\n",
(unsigned long long)reg_id);
return err;
}
static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
struct ib_flow_attr *flow_attr,
int domain)
{
int err = 0, i = 0;
struct mlx4_ib_flow *mflow;
enum mlx4_net_trans_promisc_mode type[2];
memset(type, 0, sizeof(type));
mflow = kzalloc(sizeof(struct mlx4_ib_flow), GFP_KERNEL);
if (!mflow) {
err = -ENOMEM;
goto err_free;
}
switch (flow_attr->type) {
case IB_FLOW_ATTR_NORMAL:
type[0] = MLX4_FS_REGULAR;
break;
case IB_FLOW_ATTR_ALL_DEFAULT:
type[0] = MLX4_FS_ALL_DEFAULT;
break;
case IB_FLOW_ATTR_MC_DEFAULT:
type[0] = MLX4_FS_MC_DEFAULT;
break;
case IB_FLOW_ATTR_SNIFFER:
type[0] = MLX4_FS_UC_SNIFFER;
type[1] = MLX4_FS_MC_SNIFFER;
break;
default:
err = -EINVAL;
goto err_free;
}
while (i < ARRAY_SIZE(type) && type[i]) {
err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[i],
&mflow->reg_id[i]);
if (err)
goto err_free;
i++;
}
return &mflow->ibflow;
err_free:
kfree(mflow);
return ERR_PTR(err);
}
static int mlx4_ib_destroy_flow(struct ib_flow *flow_id)
{
int err, ret = 0;
int i = 0;
struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device);
struct mlx4_ib_flow *mflow = to_mflow(flow_id);
while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i]) {
err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i]);
if (err)
ret = err;
i++;
}
kfree(mflow);
return ret;
}
static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
{
struct mlx4_ib_gid_entry *ge;
struct mlx4_ib_gid_entry *tmp;
struct mlx4_ib_gid_entry *ret = NULL;
list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
if (!memcmp(raw, ge->gid.raw, 16)) {
ret = ge;
break;
}
}
return ret;
}
static int del_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
{
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
struct mlx4_ib_gid_entry *ge;
struct net_device *ndev;
u8 mac[6];
mutex_lock(&mqp->mutex);
ge = find_gid_entry(mqp, gid->raw);
if (ge) {
spin_lock(&mdev->iboe.lock);
ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
if (ndev)
dev_hold(ndev);
spin_unlock(&mdev->iboe.lock);
rdma_get_mcast_mac((struct in6_addr *)gid, mac);
if (ndev) {
rtnl_lock();
dev_mc_delete(mdev->iboe.netdevs[ge->port - 1], mac, 6, 0);
rtnl_unlock();
dev_put(ndev);
}
list_del(&ge->list);
kfree(ge);
} else
pr_warn("could not find mgid entry\n");
mutex_unlock(&mqp->mutex);
return ge != NULL ? 0 : -EINVAL;
}
static int _mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid,
int count)
{
int err;
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
u64 reg_id = 0;
int record_err = 0;
if (mdev->dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) {
struct mlx4_ib_steering *ib_steering;
struct mlx4_ib_steering *tmp;
LIST_HEAD(temp);
mutex_lock(&mqp->mutex);
list_for_each_entry_safe(ib_steering, tmp, &mqp->steering_rules,
list) {
if (memcmp(ib_steering->gid.raw, gid->raw, 16))
continue;
if (--count < 0)
break;
list_del(&ib_steering->list);
list_add(&ib_steering->list, &temp);
}
mutex_unlock(&mqp->mutex);
list_for_each_entry_safe(ib_steering, tmp, &temp,
list) {
reg_id = ib_steering->reg_id;
err = mlx4_multicast_detach(mdev->dev, &mqp->mqp,
gid->raw,
(ibqp->qp_type == IB_QPT_RAW_PACKET) ?
MLX4_PROT_ETH : MLX4_PROT_IB_IPV6,
reg_id);
if (err) {
record_err = record_err ?: err;
continue;
}
err = del_gid_entry(ibqp, gid);
if (err) {
record_err = record_err ?: err;
continue;
}
list_del(&ib_steering->list);
kfree(ib_steering);
}
mutex_lock(&mqp->mutex);
list_for_each_entry(ib_steering, &temp, list) {
list_add(&ib_steering->list, &mqp->steering_rules);
}
mutex_unlock(&mqp->mutex);
if (count) {
pr_warn("Couldn't release all reg_ids for mgid. Steering rule is left attached\n");
return -EINVAL;
}
} else {
if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_B0 &&
ibqp->qp_type == IB_QPT_RAW_PACKET)
gid->raw[5] = mqp->port;
err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
(ibqp->qp_type == IB_QPT_RAW_PACKET) ?
MLX4_PROT_ETH : MLX4_PROT_IB_IPV6,
reg_id);
if (err)
return err;
err = del_gid_entry(ibqp, gid);
if (err)
return err;
}
return record_err;
}
static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
{
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
int count = (mdev->dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) ?
mdev->dev->caps.num_ports : 1;
return _mlx4_ib_mcg_detach(ibqp, gid, lid, count);
}
static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
{
int err = -ENODEV;
struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
struct mlx4_ib_qp *mqp = to_mqp(ibqp);
DECLARE_BITMAP(ports, MLX4_MAX_PORTS);
int i = 0;
if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_B0 &&
ibqp->qp_type == IB_QPT_RAW_PACKET)
gid->raw[5] = mqp->port;
if (mdev->dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) {
bitmap_fill(ports, mdev->dev->caps.num_ports);
} else {
if (mqp->port <= mdev->dev->caps.num_ports) {
bitmap_zero(ports, mdev->dev->caps.num_ports);
set_bit(0, ports);
} else {
return -EINVAL;
}
}
for (; i < mdev->dev->caps.num_ports; i++) {
u64 reg_id;
struct mlx4_ib_steering *ib_steering = NULL;
if (!test_bit(i, ports))
continue;
if (mdev->dev->caps.steering_mode ==
MLX4_STEERING_MODE_DEVICE_MANAGED) {
ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
if (!ib_steering)
goto err_add;
}
err = mlx4_multicast_attach(mdev->dev, &mqp->mqp,
gid->raw, i + 1,
!!(mqp->flags &
MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
(ibqp->qp_type == IB_QPT_RAW_PACKET) ?
MLX4_PROT_ETH : MLX4_PROT_IB_IPV6,
&reg_id);
if (err) {
kfree(ib_steering);
goto err_add;
}
err = add_gid_entry(ibqp, gid);
if (err) {
mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
MLX4_PROT_IB_IPV6, reg_id);
kfree(ib_steering);
goto err_add;
}
if (ib_steering) {
memcpy(ib_steering->gid.raw, gid->raw, 16);
mutex_lock(&mqp->mutex);
list_add(&ib_steering->list, &mqp->steering_rules);
mutex_unlock(&mqp->mutex);
ib_steering->reg_id = reg_id;
}
}
return 0;
err_add:
if (i > 0)
_mlx4_ib_mcg_detach(ibqp, gid, lid, i);
return err;
}
static int init_node_data(struct mlx4_ib_dev *dev)
{
struct ib_smp *in_mad = NULL;
struct ib_smp *out_mad = NULL;
int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
int err = -ENOMEM;
in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL);
out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
if (!in_mad || !out_mad)
goto out;
init_query_mad(in_mad);
in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
if (mlx4_is_master(dev->dev))
mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
if (err)
goto out;
memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
if (err)
goto out;
dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
out:
kfree(in_mad);
kfree(out_mad);
return err;
}
static ssize_t show_hca(struct device *device, struct device_attribute *attr,
char *buf)
{
struct mlx4_ib_dev *dev =
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
}
static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
char *buf)
{
struct mlx4_ib_dev *dev =
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
(int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
(int) dev->dev->caps.fw_ver & 0xffff);
}
static ssize_t show_rev(struct device *device, struct device_attribute *attr,
char *buf)
{
struct mlx4_ib_dev *dev =
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
return sprintf(buf, "%x\n", dev->dev->rev_id);
}
static ssize_t show_board(struct device *device, struct device_attribute *attr,
char *buf)
{
struct mlx4_ib_dev *dev =
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
dev->dev->board_id);
}
static ssize_t show_vsd(struct device *device, struct device_attribute *attr,
char *buf)
{
struct mlx4_ib_dev *dev =
container_of(device, struct mlx4_ib_dev, ib_dev.dev);
ssize_t len = MLX4_VSD_LEN;
if (dev->dev->vsd_vendor_id == PCI_VENDOR_ID_MELLANOX)
len = sprintf(buf, "%.*s\n", MLX4_VSD_LEN, dev->dev->vsd);
else
memcpy(buf, dev->dev->vsd, MLX4_VSD_LEN);
return len;
}
static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
static DEVICE_ATTR(vsd, S_IRUGO, show_vsd, NULL);
static struct device_attribute *mlx4_class_attributes[] = {
&dev_attr_hw_rev,
&dev_attr_fw_ver,
&dev_attr_hca_type,
&dev_attr_board_id,
&dev_attr_vsd
};
static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev, u8 port)
{
memcpy(eui, IF_LLADDR(dev), 3);
memcpy(eui + 5, IF_LLADDR(dev) + 3, 3);
if (vlan_id < 0x1000) {
eui[3] = vlan_id >> 8;
eui[4] = vlan_id & 0xff;
} else {
eui[3] = 0xff;
eui[4] = 0xfe;
}
eui[0] ^= 2;
}
static void update_gids_task(struct work_struct *work)
{
struct update_gid_work *gw = container_of(work, struct update_gid_work, work);
struct mlx4_cmd_mailbox *mailbox;
union ib_gid *gids;
int err;
struct mlx4_dev *dev = gw->dev->dev;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox));
goto free;
}
gids = mailbox->buf;
memcpy(gids, gw->gids, sizeof gw->gids);
if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, gw->port) ==
IB_LINK_LAYER_ETHERNET) {
err = mlx4_cmd(dev, mailbox->dma,
MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err)
pr_warn("set port command failed\n");
else
mlx4_ib_dispatch_event(gw->dev, gw->port,
IB_EVENT_GID_CHANGE);
}
mlx4_free_cmd_mailbox(dev, mailbox);
free:
kfree(gw);
}
static struct net_device *mlx4_ib_get_netdev(struct ib_device *device, u8 port_num)
{
struct mlx4_ib_dev *ibdev = to_mdev(device);
return mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num);
}
static void reset_gids_task(struct work_struct *work)
{
struct update_gid_work *gw =
container_of(work, struct update_gid_work, work);
struct mlx4_cmd_mailbox *mailbox;
union ib_gid *gids;
int err;
struct mlx4_dev *dev = gw->dev->dev;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox)) {
pr_warn("reset gid table failed\n");
goto free;
}
gids = mailbox->buf;
memcpy(gids, gw->gids, sizeof(gw->gids));
if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, 1) ==
IB_LINK_LAYER_ETHERNET &&
dev->caps.num_ports > 0) {
err = mlx4_cmd(dev, mailbox->dma,
MLX4_SET_PORT_GID_TABLE << 8 | 1,
1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err)
pr_warn("set port 1 command failed\n");
}
if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, 2) ==
IB_LINK_LAYER_ETHERNET &&
dev->caps.num_ports > 1) {
err = mlx4_cmd(dev, mailbox->dma,
MLX4_SET_PORT_GID_TABLE << 8 | 2,
1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
MLX4_CMD_WRAPPED);
if (err)
pr_warn("set port 2 command failed\n");
}
mlx4_free_cmd_mailbox(dev, mailbox);
free:
kfree(gw);
}
static int update_gid_table(struct mlx4_ib_dev *dev, int port,
union ib_gid *gid, int clear, int default_gid)
{
struct update_gid_work *work;
int i;
int need_update = 0;
int free = -1;
int found = -1;
int max_gids;
int start_index = !default_gid;
max_gids = dev->dev->caps.gid_table_len[port];
for (i = start_index; i < max_gids; ++i) {
if (!memcmp(&dev->iboe.gid_table[port - 1][i], gid,
sizeof(*gid)))
found = i;
if (clear) {
if (found >= 0) {
need_update = 1;
dev->iboe.gid_table[port - 1][found] = zgid;
break;
}
} else {
if (found >= 0)
break;
if (free < 0 &&
!memcmp(&dev->iboe.gid_table[port - 1][i],
&zgid, sizeof(*gid)))
free = i;
}
}
if (found == -1 && !clear && free < 0) {
pr_err("GID table of port %d is full. Can't add "GID_PRINT_FMT"\n",
port, GID_PRINT_ARGS(gid));
return -ENOMEM;
}
if (found == -1 && clear) {
pr_err(GID_PRINT_FMT" is not in GID table of port %d\n", GID_PRINT_ARGS(gid), port);
return -EINVAL;
}
if (found == -1 && !clear && free >= 0) {
dev->iboe.gid_table[port - 1][free] = *gid;
need_update = 1;
}
if (!need_update)
return 0;
work = kzalloc(sizeof *work, GFP_ATOMIC);
if (!work)
return -ENOMEM;
memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof(work->gids));
INIT_WORK(&work->work, update_gids_task);
work->port = port;
work->dev = dev;
queue_work(wq, &work->work);
return 0;
}
static int reset_gid_table(struct mlx4_ib_dev *dev)
{
struct update_gid_work *work;
work = kzalloc(sizeof(*work), GFP_ATOMIC);
if (!work)
return -ENOMEM;
memset(dev->iboe.gid_table, 0, sizeof(dev->iboe.gid_table));
memset(work->gids, 0, sizeof(work->gids));
INIT_WORK(&work->work, reset_gids_task);
work->dev = dev;
queue_work(wq, &work->work);
return 0;
}
/* XXX BOND Related - stub (no support for these flags in FBSD)*/
static inline int netif_is_bond_master(struct net_device *dev)
{
#if 0
return (dev->flags & IFF_MASTER) && (dev->priv_flags & IFF_BONDING);
#endif
return 0;
}
static void mlx4_make_default_gid(struct net_device *dev, union ib_gid *gid, u8 port)
{
gid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
mlx4_addrconf_ifid_eui48(&gid->raw[8], 0xffff, dev, port);
}
static u8 mlx4_ib_get_dev_port(struct net_device *dev, struct mlx4_ib_dev *ibdev)
{
u8 port = 0;
struct mlx4_ib_iboe *iboe;
struct net_device *real_dev = rdma_vlan_dev_real_dev(dev) ?
rdma_vlan_dev_real_dev(dev) : dev;
iboe = &ibdev->iboe;
for (port = 1; port <= MLX4_MAX_PORTS; ++port)
if ((netif_is_bond_master(real_dev) && (real_dev == iboe->masters[port - 1])) ||
(!netif_is_bond_master(real_dev) && (real_dev == iboe->netdevs[port - 1])))
break;
return port > MLX4_MAX_PORTS ? 0 : port;
}
static void mlx4_ib_get_dev_addr(struct net_device *dev, struct mlx4_ib_dev *ibdev, u8 port)
{
struct ifaddr *ifa;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
struct inet6_dev *in6_dev;
union ib_gid *pgid;
struct inet6_ifaddr *ifp;
#endif
union ib_gid gid;
if ((port == 0) || (port > MLX4_MAX_PORTS))
return;
/* IPv4 gids */
TAILQ_FOREACH(ifa, &dev->if_addrhead, ifa_link) {
if (ifa->ifa_addr && ifa->ifa_addr->sa_family == AF_INET){
ipv6_addr_set_v4mapped(
((struct sockaddr_in *) ifa->ifa_addr)->sin_addr.s_addr,
(struct in6_addr *)&gid);
update_gid_table(ibdev, port, &gid, 0, 0);
}
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
/* IPv6 gids */
in6_dev = in6_dev_get(dev);
if (in6_dev) {
read_lock_bh(&in6_dev->lock);
list_for_each_entry(ifp, &in6_dev->addr_list, if_list) {
pgid = (union ib_gid *)&ifp->addr;
update_gid_table(ibdev, port, pgid, 0, 0);
}
read_unlock_bh(&in6_dev->lock);
in6_dev_put(in6_dev);
}
#endif
}
static void mlx4_set_default_gid(struct mlx4_ib_dev *ibdev,
struct net_device *dev, u8 port)
{
union ib_gid gid;
mlx4_make_default_gid(dev, &gid, port);
update_gid_table(ibdev, port, &gid, 0, 1);
}
static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev)
{
struct net_device *dev;
if (reset_gid_table(ibdev))
return -1;
IFNET_RLOCK_NOSLEEP();
TAILQ_FOREACH(dev, &V_ifnet, if_link) {
u8 port = mlx4_ib_get_dev_port(dev, ibdev);
if (port) {
if (!rdma_vlan_dev_real_dev(dev) &&
!netif_is_bond_master(dev))
mlx4_set_default_gid(ibdev, dev, port);
mlx4_ib_get_dev_addr(dev, ibdev, port);
}
}
IFNET_RUNLOCK_NOSLEEP();
return 0;
}
static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
struct net_device *dev, unsigned long event)
{
struct mlx4_ib_iboe *iboe;
int port;
int init = 0;
unsigned long flags;
iboe = &ibdev->iboe;
spin_lock_irqsave(&iboe->lock, flags);
mlx4_foreach_ib_transport_port(port, ibdev->dev) {
struct net_device *old_netdev = iboe->netdevs[port - 1];
/* XXX BOND related */
#if 0
struct net_device *old_master = iboe->masters[port - 1];
#endif
iboe->masters[port - 1] = NULL;
iboe->netdevs[port - 1] =
mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
if (old_netdev != iboe->netdevs[port - 1])
init = 1;
if (dev == iboe->netdevs[port - 1] &&
event == NETDEV_CHANGEADDR)
init = 1;
/* XXX BOND related */
#if 0
if (iboe->netdevs[port - 1] && netif_is_bond_slave(iboe->netdevs[port - 1]))
iboe->masters[port - 1] = iboe->netdevs[port - 1]->master;
/* if bonding is used it is possible that we add it to masters only after
IP address is assigned to the net bonding interface */
if (old_master != iboe->masters[port - 1])
init = 1;
#endif
}
spin_unlock_irqrestore(&iboe->lock, flags);
if (init)
if (mlx4_ib_init_gid_table(ibdev))
pr_warn("Fail to reset gid table\n");
}
static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
struct net_device *dev = ptr;
struct mlx4_ib_dev *ibdev;
ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
mlx4_ib_scan_netdevs(ibdev, dev, event);
return NOTIFY_DONE;
}
/* This function initializes the gid table only if the event_netdev real device is an iboe
* device, will be invoked by the inet/inet6 events */
static int mlx4_ib_inet_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
struct net_device *event_netdev = ptr;
struct mlx4_ib_dev *ibdev;
struct mlx4_ib_iboe *ibdev_iboe;
int port = 0;
ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb_inet);
struct net_device *real_dev = rdma_vlan_dev_real_dev(event_netdev) ?
rdma_vlan_dev_real_dev(event_netdev) :
event_netdev;
ibdev_iboe = &ibdev->iboe;
port = mlx4_ib_get_dev_port(real_dev, ibdev);
/* Perform init_gid_table if the event real_dev is the net_device which represents this port,
* otherwise this event is not related and would be ignored.*/
if(port && (real_dev == ibdev_iboe->netdevs[port - 1]))
if (mlx4_ib_init_gid_table(ibdev))
pr_warn("Fail to reset gid table\n");
return NOTIFY_DONE;
}
static void init_pkeys(struct mlx4_ib_dev *ibdev)
{
int port;
int slave;
int i;
if (mlx4_is_master(ibdev->dev)) {
for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) {
for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
for (i = 0;
i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
++i) {
ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
/* master has the identity virt2phys pkey mapping */
(slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
}
}
}
/* initialize pkey cache */
for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
for (i = 0;
i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
++i)
ibdev->pkeys.phys_pkey_cache[port-1][i] =
(i) ? 0 : 0xFFFF;
}
}
}
static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
{
char name[32];
int eq_per_port = 0;
int added_eqs = 0;
int total_eqs = 0;
int i, j, eq;
/* Legacy mode or comp_pool is not large enough */
if (dev->caps.comp_pool == 0 ||
dev->caps.num_ports > dev->caps.comp_pool)
return;
eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/
dev->caps.num_ports);
/* Init eq table */
added_eqs = 0;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
added_eqs += eq_per_port;
total_eqs = dev->caps.num_comp_vectors + added_eqs;
ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL);
if (!ibdev->eq_table)
return;
ibdev->eq_added = added_eqs;
eq = 0;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) {
for (j = 0; j < eq_per_port; j++) {
sprintf(name, "mlx4-ib-%d-%d@%d:%d:%d:%d", i, j,
pci_get_domain(dev->pdev->dev.bsddev),
pci_get_bus(dev->pdev->dev.bsddev),
PCI_SLOT(dev->pdev->devfn),
PCI_FUNC(dev->pdev->devfn));
/* Set IRQ for specific name (per ring) */
if (mlx4_assign_eq(dev, name,
&ibdev->eq_table[eq])) {
/* Use legacy (same as mlx4_en driver) */
pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq);
ibdev->eq_table[eq] =
(eq % dev->caps.num_comp_vectors);
}
eq++;
}
}
/* Fill the reset of the vector with legacy EQ */
for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++)
ibdev->eq_table[eq++] = i;
/* Advertise the new number of EQs to clients */
ibdev->ib_dev.num_comp_vectors = total_eqs;
}
static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
{
int i;
/* no additional eqs were added */
if (!ibdev->eq_table)
return;
/* Reset the advertised EQ number */
ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
/* Free only the added eqs */
for (i = 0; i < ibdev->eq_added; i++) {
/* Don't free legacy eqs if used */
if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors)
continue;
mlx4_release_eq(dev, ibdev->eq_table[i]);
}
kfree(ibdev->eq_table);
}
/*
* create show function and a device_attribute struct pointing to
* the function for _name
*/
#define DEVICE_DIAG_RPRT_ATTR(_name, _offset, _op_mod) \
static ssize_t show_rprt_##_name(struct device *dev, \
struct device_attribute *attr, \
char *buf){ \
return show_diag_rprt(dev, buf, _offset, _op_mod); \
} \
static DEVICE_ATTR(_name, S_IRUGO, show_rprt_##_name, NULL);
#define MLX4_DIAG_RPRT_CLEAR_DIAGS 3
static size_t show_diag_rprt(struct device *device, char *buf,
u32 offset, u8 op_modifier)
{
size_t ret;
u32 counter_offset = offset;
u32 diag_counter = 0;
struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev,
ib_dev.dev);
ret = mlx4_query_diag_counters(dev->dev, 1, op_modifier,
&counter_offset, &diag_counter);
if (ret)
return ret;
return sprintf(buf, "%d\n", diag_counter);
}
static ssize_t clear_diag_counters(struct device *device,
struct device_attribute *attr,
const char *buf, size_t length)
{
size_t ret;
struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev,
ib_dev.dev);
ret = mlx4_query_diag_counters(dev->dev, 0, MLX4_DIAG_RPRT_CLEAR_DIAGS,
NULL, NULL);
if (ret)
return ret;
return length;
}
DEVICE_DIAG_RPRT_ATTR(rq_num_lle , 0x00, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_lle , 0x04, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_lqpoe , 0x08, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_lqpoe , 0x0C, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_lpe , 0x18, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_lpe , 0x1C, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_wrfe , 0x20, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_wrfe , 0x24, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_mwbe , 0x2C, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_bre , 0x34, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_lae , 0x38, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_rire , 0x44, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_rire , 0x48, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_rae , 0x4C, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_rae , 0x50, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_roe , 0x54, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_tree , 0x5C, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_rree , 0x64, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_rnr , 0x68, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_rnr , 0x6C, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_oos , 0x100, 2);
DEVICE_DIAG_RPRT_ATTR(sq_num_oos , 0x104, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_mce , 0x108, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_udsdprd , 0x118, 2);
DEVICE_DIAG_RPRT_ATTR(rq_num_ucsdprd , 0x120, 2);
DEVICE_DIAG_RPRT_ATTR(num_cqovf , 0x1A0, 2);
DEVICE_DIAG_RPRT_ATTR(num_eqovf , 0x1A4, 2);
DEVICE_DIAG_RPRT_ATTR(num_baddb , 0x1A8, 2);
static DEVICE_ATTR(clear_diag, S_IWUSR, NULL, clear_diag_counters);
static struct attribute *diag_rprt_attrs[] = {
&dev_attr_rq_num_lle.attr,
&dev_attr_sq_num_lle.attr,
&dev_attr_rq_num_lqpoe.attr,
&dev_attr_sq_num_lqpoe.attr,
&dev_attr_rq_num_lpe.attr,
&dev_attr_sq_num_lpe.attr,
&dev_attr_rq_num_wrfe.attr,
&dev_attr_sq_num_wrfe.attr,
&dev_attr_sq_num_mwbe.attr,
&dev_attr_sq_num_bre.attr,
&dev_attr_rq_num_lae.attr,
&dev_attr_sq_num_rire.attr,
&dev_attr_rq_num_rire.attr,
&dev_attr_sq_num_rae.attr,
&dev_attr_rq_num_rae.attr,
&dev_attr_sq_num_roe.attr,
&dev_attr_sq_num_tree.attr,
&dev_attr_sq_num_rree.attr,
&dev_attr_rq_num_rnr.attr,
&dev_attr_sq_num_rnr.attr,
&dev_attr_rq_num_oos.attr,
&dev_attr_sq_num_oos.attr,
&dev_attr_rq_num_mce.attr,
&dev_attr_rq_num_udsdprd.attr,
&dev_attr_rq_num_ucsdprd.attr,
&dev_attr_num_cqovf.attr,
&dev_attr_num_eqovf.attr,
&dev_attr_num_baddb.attr,
&dev_attr_clear_diag.attr,
NULL
};
static struct attribute_group diag_counters_group = {
.name = "diag_counters",
.attrs = diag_rprt_attrs
};
static void init_dev_assign(void)
{
int i = 1;
spin_lock_init(&dev_num_str_lock);
if (mlx4_fill_dbdf2val_tbl(&dev_assign_str))
return;
dev_num_str_bitmap =
kmalloc(BITS_TO_LONGS(MAX_NUM_STR_BITMAP) * sizeof(long),
GFP_KERNEL);
if (!dev_num_str_bitmap) {
pr_warn("bitmap alloc failed -- cannot apply dev_assign_str parameter\n");
return;
}
bitmap_zero(dev_num_str_bitmap, MAX_NUM_STR_BITMAP);
while ((i < MLX4_DEVS_TBL_SIZE) && (dev_assign_str.tbl[i].dbdf !=
MLX4_ENDOF_TBL)) {
if (bitmap_allocate_region(dev_num_str_bitmap,
dev_assign_str.tbl[i].val[0], 0))
goto err;
i++;
}
dr_active = 1;
return;
err:
kfree(dev_num_str_bitmap);
dev_num_str_bitmap = NULL;
pr_warn("mlx4_ib: The value of 'dev_assign_str' parameter "
"is incorrect. The parameter value is discarded!");
}
static int mlx4_ib_dev_idx(struct mlx4_dev *dev)
{
int i, val;
if (!dr_active)
return -1;
if (!dev)
return -1;
if (mlx4_get_val(dev_assign_str.tbl, dev->pdev, 0, &val))
return -1;
if (val != DEFAULT_TBL_VAL) {
dev->flags |= MLX4_FLAG_DEV_NUM_STR;
return val;
}
spin_lock(&dev_num_str_lock);
i = bitmap_find_free_region(dev_num_str_bitmap, MAX_NUM_STR_BITMAP, 0);
spin_unlock(&dev_num_str_lock);
if (i >= 0)
return i;
return -1;
}
static void *mlx4_ib_add(struct mlx4_dev *dev)
{
struct mlx4_ib_dev *ibdev;
int num_ports = 0;
int i, j;
int err;
struct mlx4_ib_iboe *iboe;
int dev_idx;
pr_info_once("%s", mlx4_ib_version);
mlx4_foreach_ib_transport_port(i, dev)
num_ports++;
/* No point in registering a device with no ports... */
if (num_ports == 0)
return NULL;
ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
if (!ibdev) {
dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
return NULL;
}
iboe = &ibdev->iboe;
if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
goto err_dealloc;
if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
goto err_pd;
ibdev->priv_uar.map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT,
PAGE_SIZE);
if (!ibdev->priv_uar.map)
goto err_uar;
MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
ibdev->dev = dev;
dev_idx = mlx4_ib_dev_idx(dev);
if (dev_idx >= 0)
sprintf(ibdev->ib_dev.name, "mlx4_%d", dev_idx);
else
strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
ibdev->ib_dev.owner = THIS_MODULE;
ibdev->ib_dev.node_type = RDMA_NODE_IB_CA;
ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey;
ibdev->num_ports = num_ports;
ibdev->ib_dev.phys_port_cnt = ibdev->num_ports;
ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
ibdev->ib_dev.dma_device = &dev->pdev->dev;
if (dev->caps.userspace_caps)
ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
else
ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
ibdev->ib_dev.uverbs_cmd_mask =
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
(1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
(1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
(1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
(1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
(1ull << IB_USER_VERBS_CMD_REG_MR) |
(1ull << IB_USER_VERBS_CMD_DEREG_MR) |
(1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
(1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
(1ull << IB_USER_VERBS_CMD_RESIZE_CQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
(1ull << IB_USER_VERBS_CMD_CREATE_QP) |
(1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
(1ull << IB_USER_VERBS_CMD_QUERY_QP) |
(1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
(1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
(1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
(1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
(1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
(1ull << IB_USER_VERBS_CMD_QUERY_SRQ) |
(1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) |
(1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) |
(1ull << IB_USER_VERBS_CMD_OPEN_QP);
ibdev->ib_dev.query_device = mlx4_ib_query_device;
ibdev->ib_dev.query_port = mlx4_ib_query_port;
ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
ibdev->ib_dev.modify_device = mlx4_ib_modify_device;
ibdev->ib_dev.modify_port = mlx4_ib_modify_port;
ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext;
ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext;
ibdev->ib_dev.mmap = mlx4_ib_mmap;
/* XXX FBSD has no support for get_unmapped_area function */
#if 0
ibdev->ib_dev.get_unmapped_area = mlx4_ib_get_unmapped_area;
#endif
ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd;
ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd;
ibdev->ib_dev.create_ah = mlx4_ib_create_ah;
ibdev->ib_dev.query_ah = mlx4_ib_query_ah;
ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah;
ibdev->ib_dev.create_srq = mlx4_ib_create_srq;
ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq;
ibdev->ib_dev.query_srq = mlx4_ib_query_srq;
ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq;
ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv;
ibdev->ib_dev.create_qp = mlx4_ib_create_qp;
ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp;
ibdev->ib_dev.query_qp = mlx4_ib_query_qp;
ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp;
ibdev->ib_dev.post_send = mlx4_ib_post_send;
ibdev->ib_dev.post_recv = mlx4_ib_post_recv;
ibdev->ib_dev.create_cq = mlx4_ib_create_cq;
ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq;
ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq;
ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq;
ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq;
ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq;
ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr;
ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr;
ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr;
ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list;
ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach;
ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach;
ibdev->ib_dev.process_mad = mlx4_ib_process_mad;
ibdev->ib_dev.get_netdev = mlx4_ib_get_netdev;
ibdev->ib_dev.ioctl = mlx4_ib_ioctl;
ibdev->ib_dev.query_values = mlx4_ib_query_values;
if (!mlx4_is_slave(ibdev->dev)) {
ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc;
ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr;
ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr;
ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc;
}
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW) {
ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw;
ibdev->ib_dev.bind_mw = mlx4_ib_bind_mw;
ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw;
ibdev->ib_dev.uverbs_cmd_mask |=
(1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
(1ull << IB_USER_VERBS_CMD_DEALLOC_MW);
}
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
ibdev->ib_dev.uverbs_cmd_mask |=
(1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
(1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
}
/*
* Set experimental data
*/
ibdev->ib_dev.uverbs_exp_cmd_mask =
(1ull << IB_USER_VERBS_EXP_CMD_CREATE_QP) |
(1ull << IB_USER_VERBS_EXP_CMD_MODIFY_CQ) |
(1ull << IB_USER_VERBS_EXP_CMD_QUERY_DEVICE) |
(1ull << IB_USER_VERBS_EXP_CMD_CREATE_CQ);
ibdev->ib_dev.exp_create_qp = mlx4_ib_exp_create_qp;
ibdev->ib_dev.exp_query_device = mlx4_ib_exp_query_device;
if (check_flow_steering_support(dev)) {
ibdev->ib_dev.uverbs_ex_cmd_mask |=
(1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
(1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
ibdev->ib_dev.create_flow = mlx4_ib_create_flow;
ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow;
} else {
pr_debug("Device managed flow steering is unavailable for this configuration.\n");
}
/*
* End of experimental data
*/
mlx4_ib_alloc_eqs(dev, ibdev);
spin_lock_init(&iboe->lock);
if (init_node_data(ibdev))
goto err_map;
for (i = 0; i < ibdev->num_ports; ++i) {
if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
IB_LINK_LAYER_ETHERNET) {
if (mlx4_is_slave(dev)) {
ibdev->counters[i].status = mlx4_counter_alloc(ibdev->dev,
i + 1,
&ibdev->counters[i].counter_index);
} else {/* allocating the PF IB default counter indices reserved in mlx4_init_counters_table */
ibdev->counters[i].counter_index = ((i + 1) << 1) - 1;
ibdev->counters[i].status = 0;
}
dev_info(&dev->pdev->dev,
"%s: allocated counter index %d for port %d\n",
__func__, ibdev->counters[i].counter_index, i+1);
} else {
ibdev->counters[i].counter_index = MLX4_SINK_COUNTER_INDEX;
ibdev->counters[i].status = -ENOSPC;
}
}
spin_lock_init(&ibdev->sm_lock);
mutex_init(&ibdev->cap_mask_mutex);
if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED &&
!mlx4_is_mfunc(dev)) {
ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS;
err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count,
MLX4_IB_UC_STEER_QPN_ALIGN, &ibdev->steer_qpn_base, 0);
if (err)
goto err_counter;
ibdev->ib_uc_qpns_bitmap =
kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
sizeof(long),
GFP_KERNEL);
if (!ibdev->ib_uc_qpns_bitmap) {
dev_err(&dev->pdev->dev, "bit map alloc failed\n");
goto err_steer_qp_release;
}
bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count);
err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(dev, ibdev->steer_qpn_base,
ibdev->steer_qpn_base + ibdev->steer_qpn_count - 1);
if (err)
goto err_steer_free_bitmap;
}
if (ib_register_device(&ibdev->ib_dev, NULL))
goto err_steer_free_bitmap;
if (mlx4_ib_mad_init(ibdev))
goto err_reg;
if (mlx4_ib_init_sriov(ibdev))
goto err_mad;
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) {
if (!iboe->nb.notifier_call) {
iboe->nb.notifier_call = mlx4_ib_netdev_event;
err = register_netdevice_notifier(&iboe->nb);
if (err) {
iboe->nb.notifier_call = NULL;
goto err_notify;
}
}
if (!iboe->nb_inet.notifier_call) {
iboe->nb_inet.notifier_call = mlx4_ib_inet_event;
err = register_inetaddr_notifier(&iboe->nb_inet);
if (err) {
iboe->nb_inet.notifier_call = NULL;
goto err_notify;
}
}
mlx4_ib_scan_netdevs(ibdev, NULL, 0);
}
for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
if (device_create_file(&ibdev->ib_dev.dev,
mlx4_class_attributes[j]))
goto err_notify;
}
if (sysfs_create_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group))
goto err_notify;
ibdev->ib_active = true;
if (mlx4_is_mfunc(ibdev->dev))
init_pkeys(ibdev);
/* create paravirt contexts for any VFs which are active */
if (mlx4_is_master(ibdev->dev)) {
for (j = 0; j < MLX4_MFUNC_MAX; j++) {
if (j == mlx4_master_func_num(ibdev->dev))
continue;
if (mlx4_is_slave_active(ibdev->dev, j))
do_slave_init(ibdev, j, 1);
}
}
return ibdev;
err_notify:
for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
device_remove_file(&ibdev->ib_dev.dev,
mlx4_class_attributes[j]);
}
if (ibdev->iboe.nb.notifier_call) {
if (unregister_netdevice_notifier(&ibdev->iboe.nb))
pr_warn("failure unregistering notifier\n");
ibdev->iboe.nb.notifier_call = NULL;
}
if (ibdev->iboe.nb_inet.notifier_call) {
if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet))
pr_warn("failure unregistering notifier\n");
ibdev->iboe.nb_inet.notifier_call = NULL;
}
flush_workqueue(wq);
mlx4_ib_close_sriov(ibdev);
err_mad:
mlx4_ib_mad_cleanup(ibdev);
err_reg:
ib_unregister_device(&ibdev->ib_dev);
err_steer_free_bitmap:
kfree(ibdev->ib_uc_qpns_bitmap);
err_steer_qp_release:
if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED)
mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
ibdev->steer_qpn_count);
err_counter:
for (; i; --i) {
if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i) ==
IB_LINK_LAYER_ETHERNET) {
mlx4_counter_free(ibdev->dev,
i,
ibdev->counters[i - 1].counter_index);
}
}
err_map:
iounmap(ibdev->priv_uar.map);
mlx4_ib_free_eqs(dev, ibdev);
err_uar:
mlx4_uar_free(dev, &ibdev->priv_uar);
err_pd:
mlx4_pd_free(dev, ibdev->priv_pdn);
err_dealloc:
ib_dealloc_device(&ibdev->ib_dev);
return NULL;
}
int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn)
{
int offset;
WARN_ON(!dev->ib_uc_qpns_bitmap);
offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap,
dev->steer_qpn_count,
get_count_order(count));
if (offset < 0)
return offset;
*qpn = dev->steer_qpn_base + offset;
return 0;
}
void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count)
{
if (!qpn ||
dev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
return;
BUG_ON(qpn < dev->steer_qpn_base);
bitmap_release_region(dev->ib_uc_qpns_bitmap,
qpn - dev->steer_qpn_base, get_count_order(count));
}
int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
int is_attach)
{
int err;
size_t flow_size;
struct ib_flow_attr *flow = NULL;
struct ib_flow_spec_ib *ib_spec;
if (is_attach) {
flow_size = sizeof(struct ib_flow_attr) +
sizeof(struct ib_flow_spec_ib);
flow = kzalloc(flow_size, GFP_KERNEL);
if (!flow)
return -ENOMEM;
flow->port = mqp->port;
flow->num_of_specs = 1;
flow->size = flow_size;
ib_spec = (struct ib_flow_spec_ib *)(flow + 1);
ib_spec->type = IB_FLOW_SPEC_IB;
ib_spec->size = sizeof(struct ib_flow_spec_ib);
ib_spec->val.l3_type_qpn = mqp->ibqp.qp_num;
ib_spec->mask.l3_type_qpn = MLX4_IB_FLOW_QPN_MASK;
err = __mlx4_ib_create_flow(&mqp->ibqp, flow,
IB_FLOW_DOMAIN_NIC,
MLX4_FS_REGULAR,
&mqp->reg_id);
} else {
err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id);
}
kfree(flow);
return err;
}
static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
{
struct mlx4_ib_dev *ibdev = ibdev_ptr;
int p, j;
int dev_idx, ret;
if (ibdev->iboe.nb_inet.notifier_call) {
if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet))
pr_warn("failure unregistering notifier\n");
ibdev->iboe.nb_inet.notifier_call = NULL;
}
mlx4_ib_close_sriov(ibdev);
sysfs_remove_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group);
mlx4_ib_mad_cleanup(ibdev);
for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
device_remove_file(&ibdev->ib_dev.dev,
mlx4_class_attributes[j]);
}
dev_idx = -1;
if (dr_active && !(ibdev->dev->flags & MLX4_FLAG_DEV_NUM_STR)) {
ret = sscanf(ibdev->ib_dev.name, "mlx4_%d", &dev_idx);
if (ret != 1)
dev_idx = -1;
}
ib_unregister_device(&ibdev->ib_dev);
if (dev_idx >= 0) {
spin_lock(&dev_num_str_lock);
bitmap_release_region(dev_num_str_bitmap, dev_idx, 0);
spin_unlock(&dev_num_str_lock);
}
if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
ibdev->steer_qpn_count);
kfree(ibdev->ib_uc_qpns_bitmap);
}
if (ibdev->iboe.nb.notifier_call) {
if (unregister_netdevice_notifier(&ibdev->iboe.nb))
pr_warn("failure unregistering notifier\n");
ibdev->iboe.nb.notifier_call = NULL;
}
iounmap(ibdev->priv_uar.map);
for (p = 0; p < ibdev->num_ports; ++p) {
if (mlx4_ib_port_link_layer(&ibdev->ib_dev, p + 1) ==
IB_LINK_LAYER_ETHERNET) {
mlx4_counter_free(ibdev->dev,
p + 1,
ibdev->counters[p].counter_index);
}
}
mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
mlx4_CLOSE_PORT(dev, p);
mlx4_ib_free_eqs(dev, ibdev);
mlx4_uar_free(dev, &ibdev->priv_uar);
mlx4_pd_free(dev, ibdev->priv_pdn);
ib_dealloc_device(&ibdev->ib_dev);
}
static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
{
struct mlx4_ib_demux_work **dm = NULL;
struct mlx4_dev *dev = ibdev->dev;
int i;
unsigned long flags;
if (!mlx4_is_master(dev))
return;
dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC);
if (!dm) {
pr_err("failed to allocate memory for tunneling qp update\n");
goto out;
}
for (i = 0; i < dev->caps.num_ports; i++) {
dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
if (!dm[i]) {
pr_err("failed to allocate memory for tunneling qp update work struct\n");
for (i = 0; i < dev->caps.num_ports; i++) {
if (dm[i])
kfree(dm[i]);
}
goto out;
}
}
/* initialize or tear down tunnel QPs for the slave */
for (i = 0; i < dev->caps.num_ports; i++) {
INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
dm[i]->port = i + 1;
dm[i]->slave = slave;
dm[i]->do_init = do_init;
dm[i]->dev = ibdev;
spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
if (!ibdev->sriov.is_going_down)
queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
}
out:
if (dm)
kfree(dm);
return;
}
static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
enum mlx4_dev_event event, unsigned long param)
{
struct ib_event ibev;
struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
struct mlx4_eqe *eqe = NULL;
struct ib_event_work *ew;
int p = 0;
if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
eqe = (struct mlx4_eqe *)param;
else
p = (int) param;
switch (event) {
case MLX4_DEV_EVENT_PORT_UP:
if (p > ibdev->num_ports)
return;
if (mlx4_is_master(dev) &&
rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
IB_LINK_LAYER_INFINIBAND) {
mlx4_ib_invalidate_all_guid_record(ibdev, p);
}
mlx4_ib_info((struct ib_device *) ibdev_ptr,
"Port %d logical link is up\n", p);
ibev.event = IB_EVENT_PORT_ACTIVE;
break;
case MLX4_DEV_EVENT_PORT_DOWN:
if (p > ibdev->num_ports)
return;
mlx4_ib_info((struct ib_device *) ibdev_ptr,
"Port %d logical link is down\n", p);
ibev.event = IB_EVENT_PORT_ERR;
break;
case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
ibdev->ib_active = false;
ibev.event = IB_EVENT_DEVICE_FATAL;
break;
case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
ew = kmalloc(sizeof *ew, GFP_ATOMIC);
if (!ew) {
pr_err("failed to allocate memory for events work\n");
break;
}
INIT_WORK(&ew->work, handle_port_mgmt_change_event);
memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
ew->ib_dev = ibdev;
/* need to queue only for port owner, which uses GEN_EQE */
if (mlx4_is_master(dev))
queue_work(wq, &ew->work);
else
handle_port_mgmt_change_event(&ew->work);
return;
case MLX4_DEV_EVENT_SLAVE_INIT:
/* here, p is the slave id */
do_slave_init(ibdev, p, 1);
return;
case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
/* here, p is the slave id */
do_slave_init(ibdev, p, 0);
return;
default:
return;
}
ibev.device = ibdev_ptr;
ibev.element.port_num = (u8) p;
ib_dispatch_event(&ibev);
}
static struct mlx4_interface mlx4_ib_interface = {
.add = mlx4_ib_add,
.remove = mlx4_ib_remove,
.event = mlx4_ib_event,
.protocol = MLX4_PROT_IB_IPV6
};
static int __init mlx4_ib_init(void)
{
int err;
wq = create_singlethread_workqueue("mlx4_ib");
if (!wq)
return -ENOMEM;
err = mlx4_ib_mcg_init();
if (err)
goto clean_proc;
init_dev_assign();
err = mlx4_register_interface(&mlx4_ib_interface);
if (err)
goto clean_mcg;
return 0;
clean_mcg:
mlx4_ib_mcg_destroy();
clean_proc:
destroy_workqueue(wq);
return err;
}
static void __exit mlx4_ib_cleanup(void)
{
mlx4_unregister_interface(&mlx4_ib_interface);
mlx4_ib_mcg_destroy();
destroy_workqueue(wq);
kfree(dev_num_str_bitmap);
}
module_init_order(mlx4_ib_init, SI_ORDER_MIDDLE);
module_exit(mlx4_ib_cleanup);
static int
mlx4ib_evhand(module_t mod, int event, void *arg)
{
return (0);
}
static moduledata_t mlx4ib_mod = {
.name = "mlx4ib",
.evhand = mlx4ib_evhand,
};
DECLARE_MODULE(mlx4ib, mlx4ib_mod, SI_SUB_LAST, SI_ORDER_ANY);
MODULE_DEPEND(mlx4ib, mlx4, 1, 1, 1);
MODULE_DEPEND(mlx4ib, ibcore, 1, 1, 1);
MODULE_DEPEND(mlx4ib, linuxkpi, 1, 1, 1);
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