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linux_dsm_epyc7002/drivers/net/ethernet/mellanox/mlx4/main.c
Yevgeny Petrilin 58a60168d1 mlx4: capability for link sensing 
For ConnectX3 devices, we allow link sensing only if FW explicitly
reported it supports the feature.
For older versions (ConnectX1 and 2), if the card supports both link layer types
(Ethenet and Infiniband), link sensing is supported.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-19 14:57:06 -05:00

2098 lines
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/*
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/io-mapping.h>
#include <linux/delay.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/doorbell.h>
#include "mlx4.h"
#include "fw.h"
#include "icm.h"
MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION);
struct workqueue_struct *mlx4_wq;
#ifdef CONFIG_MLX4_DEBUG
int mlx4_debug_level = 0;
module_param_named(debug_level, mlx4_debug_level, int, 0644);
MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
#endif /* CONFIG_MLX4_DEBUG */
#ifdef CONFIG_PCI_MSI
static int msi_x = 1;
module_param(msi_x, int, 0444);
MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
#else /* CONFIG_PCI_MSI */
#define msi_x (0)
#endif /* CONFIG_PCI_MSI */
static int num_vfs;
module_param(num_vfs, int, 0444);
MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0");
static int probe_vf;
module_param(probe_vf, int, 0644);
MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)");
int mlx4_log_num_mgm_entry_size = 10;
module_param_named(log_num_mgm_entry_size,
mlx4_log_num_mgm_entry_size, int, 0444);
MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
" of qp per mcg, for example:"
" 10 gives 248.range: 9<="
" log_num_mgm_entry_size <= 12");
#define MLX4_VF (1 << 0)
#define HCA_GLOBAL_CAP_MASK 0
#define PF_CONTEXT_BEHAVIOUR_MASK 0
static char mlx4_version[] __devinitdata =
DRV_NAME ": Mellanox ConnectX core driver v"
DRV_VERSION " (" DRV_RELDATE ")\n";
static struct mlx4_profile default_profile = {
.num_qp = 1 << 18,
.num_srq = 1 << 16,
.rdmarc_per_qp = 1 << 4,
.num_cq = 1 << 16,
.num_mcg = 1 << 13,
.num_mpt = 1 << 19,
.num_mtt = 1 << 20,
};
static int log_num_mac = 7;
module_param_named(log_num_mac, log_num_mac, int, 0444);
MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
static int log_num_vlan;
module_param_named(log_num_vlan, log_num_vlan, int, 0444);
MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
/* Log2 max number of VLANs per ETH port (0-7) */
#define MLX4_LOG_NUM_VLANS 7
static int use_prio;
module_param_named(use_prio, use_prio, bool, 0444);
MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
"(0/1, default 0)");
int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
static int port_type_array[2] = {1, 1};
static int arr_argc = 2;
module_param_array(port_type_array, int, &arr_argc, 0444);
MODULE_PARM_DESC(port_type_array, "Array of port types: IB by default");
struct mlx4_port_config {
struct list_head list;
enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
struct pci_dev *pdev;
};
static inline int mlx4_master_get_num_eqs(struct mlx4_dev *dev)
{
return dev->caps.reserved_eqs +
MLX4_MFUNC_EQ_NUM * (dev->num_slaves + 1);
}
int mlx4_check_port_params(struct mlx4_dev *dev,
enum mlx4_port_type *port_type)
{
int i;
for (i = 0; i < dev->caps.num_ports - 1; i++) {
if (port_type[i] != port_type[i + 1]) {
if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
mlx4_err(dev, "Only same port types supported "
"on this HCA, aborting.\n");
return -EINVAL;
}
if (port_type[i] == MLX4_PORT_TYPE_ETH &&
port_type[i + 1] == MLX4_PORT_TYPE_IB)
return -EINVAL;
}
}
for (i = 0; i < dev->caps.num_ports; i++) {
if (!(port_type[i] & dev->caps.supported_type[i+1])) {
mlx4_err(dev, "Requested port type for port %d is not "
"supported on this HCA\n", i + 1);
return -EINVAL;
}
}
return 0;
}
static void mlx4_set_port_mask(struct mlx4_dev *dev)
{
int i;
for (i = 1; i <= dev->caps.num_ports; ++i)
dev->caps.port_mask[i] = dev->caps.port_type[i];
}
static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
{
int err;
int i;
err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
if (err) {
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
return err;
}
if (dev_cap->min_page_sz > PAGE_SIZE) {
mlx4_err(dev, "HCA minimum page size of %d bigger than "
"kernel PAGE_SIZE of %ld, aborting.\n",
dev_cap->min_page_sz, PAGE_SIZE);
return -ENODEV;
}
if (dev_cap->num_ports > MLX4_MAX_PORTS) {
mlx4_err(dev, "HCA has %d ports, but we only support %d, "
"aborting.\n",
dev_cap->num_ports, MLX4_MAX_PORTS);
return -ENODEV;
}
if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
"PCI resource 2 size of 0x%llx, aborting.\n",
dev_cap->uar_size,
(unsigned long long) pci_resource_len(dev->pdev, 2));
return -ENODEV;
}
dev->caps.num_ports = dev_cap->num_ports;
for (i = 1; i <= dev->caps.num_ports; ++i) {
dev->caps.vl_cap[i] = dev_cap->max_vl[i];
dev->caps.ib_mtu_cap[i] = dev_cap->ib_mtu[i];
dev->caps.gid_table_len[i] = dev_cap->max_gids[i];
dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i];
dev->caps.def_mac[i] = dev_cap->def_mac[i];
dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
dev->caps.trans_type[i] = dev_cap->trans_type[i];
dev->caps.vendor_oui[i] = dev_cap->vendor_oui[i];
dev->caps.wavelength[i] = dev_cap->wavelength[i];
dev->caps.trans_code[i] = dev_cap->trans_code[i];
}
dev->caps.uar_page_size = PAGE_SIZE;
dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE;
dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
dev->caps.bf_reg_size = dev_cap->bf_reg_size;
dev->caps.bf_regs_per_page = dev_cap->bf_regs_per_page;
dev->caps.max_sq_sg = dev_cap->max_sq_sg;
dev->caps.max_rq_sg = dev_cap->max_rq_sg;
dev->caps.max_wqes = dev_cap->max_qp_sz;
dev->caps.max_qp_init_rdma = dev_cap->max_requester_per_qp;
dev->caps.max_srq_wqes = dev_cap->max_srq_sz;
dev->caps.max_srq_sge = dev_cap->max_rq_sg - 1;
dev->caps.reserved_srqs = dev_cap->reserved_srqs;
dev->caps.max_sq_desc_sz = dev_cap->max_sq_desc_sz;
dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
/*
* Subtract 1 from the limit because we need to allocate a
* spare CQE so the HCA HW can tell the difference between an
* empty CQ and a full CQ.
*/
dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
dev->caps.reserved_cqs = dev_cap->reserved_cqs;
dev->caps.reserved_eqs = dev_cap->reserved_eqs;
dev->caps.reserved_mtts = dev_cap->reserved_mtts;
dev->caps.reserved_mrws = dev_cap->reserved_mrws;
/* The first 128 UARs are used for EQ doorbells */
dev->caps.reserved_uars = max_t(int, 128, dev_cap->reserved_uars);
dev->caps.reserved_pds = dev_cap->reserved_pds;
dev->caps.reserved_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
dev_cap->reserved_xrcds : 0;
dev->caps.max_xrcds = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
dev_cap->max_xrcds : 0;
dev->caps.mtt_entry_sz = dev_cap->mtt_entry_sz;
dev->caps.max_msg_sz = dev_cap->max_msg_sz;
dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
dev->caps.flags = dev_cap->flags;
dev->caps.bmme_flags = dev_cap->bmme_flags;
dev->caps.reserved_lkey = dev_cap->reserved_lkey;
dev->caps.stat_rate_support = dev_cap->stat_rate_support;
dev->caps.max_gso_sz = dev_cap->max_gso_sz;
/* Sense port always allowed on supported devices for ConnectX1 and 2 */
if (dev->pdev->device != 0x1003)
dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
dev->caps.log_num_macs = log_num_mac;
dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
dev->caps.log_num_prios = use_prio ? 3 : 0;
for (i = 1; i <= dev->caps.num_ports; ++i) {
dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
if (dev->caps.supported_type[i]) {
/* if only ETH is supported - assign ETH */
if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
/* if only IB is supported,
* assign IB only if SRIOV is off*/
else if (dev->caps.supported_type[i] ==
MLX4_PORT_TYPE_IB) {
if (dev->flags & MLX4_FLAG_SRIOV)
dev->caps.port_type[i] =
MLX4_PORT_TYPE_NONE;
else
dev->caps.port_type[i] =
MLX4_PORT_TYPE_IB;
/* if IB and ETH are supported,
* first of all check if SRIOV is on */
} else if (dev->flags & MLX4_FLAG_SRIOV)
dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
/* if IB and ETH are supported and SRIOV is off
* use module parameters */
else {
if (port_type_array[i-1])
dev->caps.port_type[i] =
MLX4_PORT_TYPE_IB;
else
dev->caps.port_type[i] =
MLX4_PORT_TYPE_ETH;
}
}
dev->caps.possible_type[i] = dev->caps.port_type[i];
mlx4_priv(dev)->sense.sense_allowed[i] =
((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
(dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
dev->caps.log_num_macs = dev_cap->log_max_macs[i];
mlx4_warn(dev, "Requested number of MACs is too much "
"for port %d, reducing to %d.\n",
i, 1 << dev->caps.log_num_macs);
}
if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
mlx4_warn(dev, "Requested number of VLANs is too much "
"for port %d, reducing to %d.\n",
i, 1 << dev->caps.log_num_vlans);
}
}
dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
(1 << dev->caps.log_num_macs) *
(1 << dev->caps.log_num_vlans) *
(1 << dev->caps.log_num_prios) *
dev->caps.num_ports;
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
return 0;
}
/*The function checks if there are live vf, return the num of them*/
static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_slave_state *s_state;
int i;
int ret = 0;
for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
s_state = &priv->mfunc.master.slave_state[i];
if (s_state->active && s_state->last_cmd !=
MLX4_COMM_CMD_RESET) {
mlx4_warn(dev, "%s: slave: %d is still active\n",
__func__, i);
ret++;
}
}
return ret;
}
static int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_slave_state *s_slave;
if (!mlx4_is_master(dev))
return 0;
s_slave = &priv->mfunc.master.slave_state[slave];
return !!s_slave->active;
}
EXPORT_SYMBOL(mlx4_is_slave_active);
static int mlx4_slave_cap(struct mlx4_dev *dev)
{
int err;
u32 page_size;
struct mlx4_dev_cap dev_cap;
struct mlx4_func_cap func_cap;
struct mlx4_init_hca_param hca_param;
int i;
memset(&hca_param, 0, sizeof(hca_param));
err = mlx4_QUERY_HCA(dev, &hca_param);
if (err) {
mlx4_err(dev, "QUERY_HCA command failed, aborting.\n");
return err;
}
/*fail if the hca has an unknown capability */
if ((hca_param.global_caps | HCA_GLOBAL_CAP_MASK) !=
HCA_GLOBAL_CAP_MASK) {
mlx4_err(dev, "Unknown hca global capabilities\n");
return -ENOSYS;
}
mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
memset(&dev_cap, 0, sizeof(dev_cap));
err = mlx4_dev_cap(dev, &dev_cap);
if (err) {
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
return err;
}
page_size = ~dev->caps.page_size_cap + 1;
mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
if (page_size > PAGE_SIZE) {
mlx4_err(dev, "HCA minimum page size of %d bigger than "
"kernel PAGE_SIZE of %ld, aborting.\n",
page_size, PAGE_SIZE);
return -ENODEV;
}
/* slave gets uar page size from QUERY_HCA fw command */
dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
/* TODO: relax this assumption */
if (dev->caps.uar_page_size != PAGE_SIZE) {
mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
dev->caps.uar_page_size, PAGE_SIZE);
return -ENODEV;
}
memset(&func_cap, 0, sizeof(func_cap));
err = mlx4_QUERY_FUNC_CAP(dev, &func_cap);
if (err) {
mlx4_err(dev, "QUERY_FUNC_CAP command failed, aborting.\n");
return err;
}
if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
PF_CONTEXT_BEHAVIOUR_MASK) {
mlx4_err(dev, "Unknown pf context behaviour\n");
return -ENOSYS;
}
dev->caps.function = func_cap.function;
dev->caps.num_ports = func_cap.num_ports;
dev->caps.num_qps = func_cap.qp_quota;
dev->caps.num_srqs = func_cap.srq_quota;
dev->caps.num_cqs = func_cap.cq_quota;
dev->caps.num_eqs = func_cap.max_eq;
dev->caps.reserved_eqs = func_cap.reserved_eq;
dev->caps.num_mpts = func_cap.mpt_quota;
dev->caps.num_mtts = func_cap.mtt_quota;
dev->caps.num_pds = MLX4_NUM_PDS;
dev->caps.num_mgms = 0;
dev->caps.num_amgms = 0;
for (i = 1; i <= dev->caps.num_ports; ++i)
dev->caps.port_mask[i] = dev->caps.port_type[i];
if (dev->caps.num_ports > MLX4_MAX_PORTS) {
mlx4_err(dev, "HCA has %d ports, but we only support %d, "
"aborting.\n", dev->caps.num_ports, MLX4_MAX_PORTS);
return -ENODEV;
}
if (dev->caps.uar_page_size * (dev->caps.num_uars -
dev->caps.reserved_uars) >
pci_resource_len(dev->pdev, 2)) {
mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than "
"PCI resource 2 size of 0x%llx, aborting.\n",
dev->caps.uar_page_size * dev->caps.num_uars,
(unsigned long long) pci_resource_len(dev->pdev, 2));
return -ENODEV;
}
#if 0
mlx4_warn(dev, "sqp_demux:%d\n", dev->caps.sqp_demux);
mlx4_warn(dev, "num_uars:%d reserved_uars:%d uar region:0x%x bar2:0x%llx\n",
dev->caps.num_uars, dev->caps.reserved_uars,
dev->caps.uar_page_size * dev->caps.num_uars,
pci_resource_len(dev->pdev, 2));
mlx4_warn(dev, "num_eqs:%d reserved_eqs:%d\n", dev->caps.num_eqs,
dev->caps.reserved_eqs);
mlx4_warn(dev, "num_pds:%d reserved_pds:%d slave_pd_shift:%d pd_base:%d\n",
dev->caps.num_pds, dev->caps.reserved_pds,
dev->caps.slave_pd_shift, dev->caps.pd_base);
#endif
return 0;
}
/*
* Change the port configuration of the device.
* Every user of this function must hold the port mutex.
*/
int mlx4_change_port_types(struct mlx4_dev *dev,
enum mlx4_port_type *port_types)
{
int err = 0;
int change = 0;
int port;
for (port = 0; port < dev->caps.num_ports; port++) {
/* Change the port type only if the new type is different
* from the current, and not set to Auto */
if (port_types[port] != dev->caps.port_type[port + 1]) {
change = 1;
dev->caps.port_type[port + 1] = port_types[port];
}
}
if (change) {
mlx4_unregister_device(dev);
for (port = 1; port <= dev->caps.num_ports; port++) {
mlx4_CLOSE_PORT(dev, port);
err = mlx4_SET_PORT(dev, port);
if (err) {
mlx4_err(dev, "Failed to set port %d, "
"aborting\n", port);
goto out;
}
}
mlx4_set_port_mask(dev);
err = mlx4_register_device(dev);
}
out:
return err;
}
static ssize_t show_port_type(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
port_attr);
struct mlx4_dev *mdev = info->dev;
char type[8];
sprintf(type, "%s",
(mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
"ib" : "eth");
if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
sprintf(buf, "auto (%s)\n", type);
else
sprintf(buf, "%s\n", type);
return strlen(buf);
}
static ssize_t set_port_type(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
port_attr);
struct mlx4_dev *mdev = info->dev;
struct mlx4_priv *priv = mlx4_priv(mdev);
enum mlx4_port_type types[MLX4_MAX_PORTS];
enum mlx4_port_type new_types[MLX4_MAX_PORTS];
int i;
int err = 0;
if (!strcmp(buf, "ib\n"))
info->tmp_type = MLX4_PORT_TYPE_IB;
else if (!strcmp(buf, "eth\n"))
info->tmp_type = MLX4_PORT_TYPE_ETH;
else if (!strcmp(buf, "auto\n"))
info->tmp_type = MLX4_PORT_TYPE_AUTO;
else {
mlx4_err(mdev, "%s is not supported port type\n", buf);
return -EINVAL;
}
mlx4_stop_sense(mdev);
mutex_lock(&priv->port_mutex);
/* Possible type is always the one that was delivered */
mdev->caps.possible_type[info->port] = info->tmp_type;
for (i = 0; i < mdev->caps.num_ports; i++) {
types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
mdev->caps.possible_type[i+1];
if (types[i] == MLX4_PORT_TYPE_AUTO)
types[i] = mdev->caps.port_type[i+1];
}
if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
for (i = 1; i <= mdev->caps.num_ports; i++) {
if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
mdev->caps.possible_type[i] = mdev->caps.port_type[i];
err = -EINVAL;
}
}
}
if (err) {
mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
"Set only 'eth' or 'ib' for both ports "
"(should be the same)\n");
goto out;
}
mlx4_do_sense_ports(mdev, new_types, types);
err = mlx4_check_port_params(mdev, new_types);
if (err)
goto out;
/* We are about to apply the changes after the configuration
* was verified, no need to remember the temporary types
* any more */
for (i = 0; i < mdev->caps.num_ports; i++)
priv->port[i + 1].tmp_type = 0;
err = mlx4_change_port_types(mdev, new_types);
out:
mlx4_start_sense(mdev);
mutex_unlock(&priv->port_mutex);
return err ? err : count;
}
static int mlx4_load_fw(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int err;
priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
GFP_HIGHUSER | __GFP_NOWARN, 0);
if (!priv->fw.fw_icm) {
mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
return -ENOMEM;
}
err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
if (err) {
mlx4_err(dev, "MAP_FA command failed, aborting.\n");
goto err_free;
}
err = mlx4_RUN_FW(dev);
if (err) {
mlx4_err(dev, "RUN_FW command failed, aborting.\n");
goto err_unmap_fa;
}
return 0;
err_unmap_fa:
mlx4_UNMAP_FA(dev);
err_free:
mlx4_free_icm(dev, priv->fw.fw_icm, 0);
return err;
}
static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
int cmpt_entry_sz)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int err;
int num_eqs;
err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
cmpt_base +
((u64) (MLX4_CMPT_TYPE_QP *
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
cmpt_entry_sz, dev->caps.num_qps,
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err)
goto err;
err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
cmpt_base +
((u64) (MLX4_CMPT_TYPE_SRQ *
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
cmpt_entry_sz, dev->caps.num_srqs,
dev->caps.reserved_srqs, 0, 0);
if (err)
goto err_qp;
err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
cmpt_base +
((u64) (MLX4_CMPT_TYPE_CQ *
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
cmpt_entry_sz, dev->caps.num_cqs,
dev->caps.reserved_cqs, 0, 0);
if (err)
goto err_srq;
num_eqs = (mlx4_is_master(dev)) ?
roundup_pow_of_two(mlx4_master_get_num_eqs(dev)) :
dev->caps.num_eqs;
err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
cmpt_base +
((u64) (MLX4_CMPT_TYPE_EQ *
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
if (err)
goto err_cq;
return 0;
err_cq:
mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
err_srq:
mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
err_qp:
mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
err:
return err;
}
static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
struct mlx4_init_hca_param *init_hca, u64 icm_size)
{
struct mlx4_priv *priv = mlx4_priv(dev);
u64 aux_pages;
int num_eqs;
int err;
err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
if (err) {
mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
return err;
}
mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
(unsigned long long) icm_size >> 10,
(unsigned long long) aux_pages << 2);
priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
GFP_HIGHUSER | __GFP_NOWARN, 0);
if (!priv->fw.aux_icm) {
mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
return -ENOMEM;
}
err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
if (err) {
mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
goto err_free_aux;
}
err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
if (err) {
mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
goto err_unmap_aux;
}
num_eqs = (mlx4_is_master(dev)) ?
roundup_pow_of_two(mlx4_master_get_num_eqs(dev)) :
dev->caps.num_eqs;
err = mlx4_init_icm_table(dev, &priv->eq_table.table,
init_hca->eqc_base, dev_cap->eqc_entry_sz,
num_eqs, num_eqs, 0, 0);
if (err) {
mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
goto err_unmap_cmpt;
}
/*
* Reserved MTT entries must be aligned up to a cacheline
* boundary, since the FW will write to them, while the driver
* writes to all other MTT entries. (The variable
* dev->caps.mtt_entry_sz below is really the MTT segment
* size, not the raw entry size)
*/
dev->caps.reserved_mtts =
ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
init_hca->mtt_base,
dev->caps.mtt_entry_sz,
dev->caps.num_mtts,
dev->caps.reserved_mtts, 1, 0);
if (err) {
mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
goto err_unmap_eq;
}
err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
init_hca->dmpt_base,
dev_cap->dmpt_entry_sz,
dev->caps.num_mpts,
dev->caps.reserved_mrws, 1, 1);
if (err) {
mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
goto err_unmap_mtt;
}
err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
init_hca->qpc_base,
dev_cap->qpc_entry_sz,
dev->caps.num_qps,
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
goto err_unmap_dmpt;
}
err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
init_hca->auxc_base,
dev_cap->aux_entry_sz,
dev->caps.num_qps,
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
goto err_unmap_qp;
}
err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
init_hca->altc_base,
dev_cap->altc_entry_sz,
dev->caps.num_qps,
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
goto err_unmap_auxc;
}
err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
init_hca->rdmarc_base,
dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
dev->caps.num_qps,
dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
0, 0);
if (err) {
mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
goto err_unmap_altc;
}
err = mlx4_init_icm_table(dev, &priv->cq_table.table,
init_hca->cqc_base,
dev_cap->cqc_entry_sz,
dev->caps.num_cqs,
dev->caps.reserved_cqs, 0, 0);
if (err) {
mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
goto err_unmap_rdmarc;
}
err = mlx4_init_icm_table(dev, &priv->srq_table.table,
init_hca->srqc_base,
dev_cap->srq_entry_sz,
dev->caps.num_srqs,
dev->caps.reserved_srqs, 0, 0);
if (err) {
mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
goto err_unmap_cq;
}
/*
* It's not strictly required, but for simplicity just map the
* whole multicast group table now. The table isn't very big
* and it's a lot easier than trying to track ref counts.
*/
err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
init_hca->mc_base,
mlx4_get_mgm_entry_size(dev),
dev->caps.num_mgms + dev->caps.num_amgms,
dev->caps.num_mgms + dev->caps.num_amgms,
0, 0);
if (err) {
mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
goto err_unmap_srq;
}
return 0;
err_unmap_srq:
mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
err_unmap_cq:
mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
err_unmap_rdmarc:
mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
err_unmap_altc:
mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
err_unmap_auxc:
mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
err_unmap_qp:
mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
err_unmap_dmpt:
mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
err_unmap_mtt:
mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
err_unmap_eq:
mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
err_unmap_cmpt:
mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
err_unmap_aux:
mlx4_UNMAP_ICM_AUX(dev);
err_free_aux:
mlx4_free_icm(dev, priv->fw.aux_icm, 0);
return err;
}
static void mlx4_free_icms(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
mlx4_UNMAP_ICM_AUX(dev);
mlx4_free_icm(dev, priv->fw.aux_icm, 0);
}
static void mlx4_slave_exit(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
down(&priv->cmd.slave_sem);
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
mlx4_warn(dev, "Failed to close slave function.\n");
up(&priv->cmd.slave_sem);
}
static int map_bf_area(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
resource_size_t bf_start;
resource_size_t bf_len;
int err = 0;
bf_start = pci_resource_start(dev->pdev, 2) +
(dev->caps.num_uars << PAGE_SHIFT);
bf_len = pci_resource_len(dev->pdev, 2) -
(dev->caps.num_uars << PAGE_SHIFT);
priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
if (!priv->bf_mapping)
err = -ENOMEM;
return err;
}
static void unmap_bf_area(struct mlx4_dev *dev)
{
if (mlx4_priv(dev)->bf_mapping)
io_mapping_free(mlx4_priv(dev)->bf_mapping);
}
static void mlx4_close_hca(struct mlx4_dev *dev)
{
unmap_bf_area(dev);
if (mlx4_is_slave(dev))
mlx4_slave_exit(dev);
else {
mlx4_CLOSE_HCA(dev, 0);
mlx4_free_icms(dev);
mlx4_UNMAP_FA(dev);
mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
}
}
static int mlx4_init_slave(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
u64 dma = (u64) priv->mfunc.vhcr_dma;
int num_of_reset_retries = NUM_OF_RESET_RETRIES;
int ret_from_reset = 0;
u32 slave_read;
u32 cmd_channel_ver;
down(&priv->cmd.slave_sem);
priv->cmd.max_cmds = 1;
mlx4_warn(dev, "Sending reset\n");
ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
MLX4_COMM_TIME);
/* if we are in the middle of flr the slave will try
* NUM_OF_RESET_RETRIES times before leaving.*/
if (ret_from_reset) {
if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
msleep(SLEEP_TIME_IN_RESET);
while (ret_from_reset && num_of_reset_retries) {
mlx4_warn(dev, "slave is currently in the"
"middle of FLR. retrying..."
"(try num:%d)\n",
(NUM_OF_RESET_RETRIES -
num_of_reset_retries + 1));
ret_from_reset =
mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET,
0, MLX4_COMM_TIME);
num_of_reset_retries = num_of_reset_retries - 1;
}
} else
goto err;
}
/* check the driver version - the slave I/F revision
* must match the master's */
slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
cmd_channel_ver = mlx4_comm_get_version();
if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
MLX4_COMM_GET_IF_REV(slave_read)) {
mlx4_err(dev, "slave driver version is not supported"
" by the master\n");
goto err;
}
mlx4_warn(dev, "Sending vhcr0\n");
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
MLX4_COMM_TIME))
goto err;
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
MLX4_COMM_TIME))
goto err;
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
MLX4_COMM_TIME))
goto err;
if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
goto err;
up(&priv->cmd.slave_sem);
return 0;
err:
mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
up(&priv->cmd.slave_sem);
return -EIO;
}
static int mlx4_init_hca(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_adapter adapter;
struct mlx4_dev_cap dev_cap;
struct mlx4_mod_stat_cfg mlx4_cfg;
struct mlx4_profile profile;
struct mlx4_init_hca_param init_hca;
u64 icm_size;
int err;
if (!mlx4_is_slave(dev)) {
err = mlx4_QUERY_FW(dev);
if (err) {
if (err == -EACCES)
mlx4_info(dev, "non-primary physical function, skipping.\n");
else
mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
goto unmap_bf;
}
err = mlx4_load_fw(dev);
if (err) {
mlx4_err(dev, "Failed to start FW, aborting.\n");
goto unmap_bf;
}
mlx4_cfg.log_pg_sz_m = 1;
mlx4_cfg.log_pg_sz = 0;
err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
if (err)
mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
err = mlx4_dev_cap(dev, &dev_cap);
if (err) {
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
goto err_stop_fw;
}
profile = default_profile;
icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
&init_hca);
if ((long long) icm_size < 0) {
err = icm_size;
goto err_stop_fw;
}
init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
init_hca.uar_page_sz = PAGE_SHIFT - 12;
err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
if (err)
goto err_stop_fw;
err = mlx4_INIT_HCA(dev, &init_hca);
if (err) {
mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
goto err_free_icm;
}
} else {
err = mlx4_init_slave(dev);
if (err) {
mlx4_err(dev, "Failed to initialize slave\n");
goto unmap_bf;
}
err = mlx4_slave_cap(dev);
if (err) {
mlx4_err(dev, "Failed to obtain slave caps\n");
goto err_close;
}
}
if (map_bf_area(dev))
mlx4_dbg(dev, "Failed to map blue flame area\n");
/*Only the master set the ports, all the rest got it from it.*/
if (!mlx4_is_slave(dev))
mlx4_set_port_mask(dev);
err = mlx4_QUERY_ADAPTER(dev, &adapter);
if (err) {
mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
goto err_close;
}
priv->eq_table.inta_pin = adapter.inta_pin;
memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
return 0;
err_close:
mlx4_close_hca(dev);
err_free_icm:
if (!mlx4_is_slave(dev))
mlx4_free_icms(dev);
err_stop_fw:
if (!mlx4_is_slave(dev)) {
mlx4_UNMAP_FA(dev);
mlx4_free_icm(dev, priv->fw.fw_icm, 0);
}
unmap_bf:
unmap_bf_area(dev);
return err;
}
static int mlx4_init_counters_table(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int nent;
if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
return -ENOENT;
nent = dev->caps.max_counters;
return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
}
static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
{
mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
}
int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
{
struct mlx4_priv *priv = mlx4_priv(dev);
if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
return -ENOENT;
*idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
if (*idx == -1)
return -ENOMEM;
return 0;
}
EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
{
mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
return;
}
EXPORT_SYMBOL_GPL(mlx4_counter_free);
static int mlx4_setup_hca(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int err;
int port;
__be32 ib_port_default_caps;
err = mlx4_init_uar_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"user access region table, aborting.\n");
return err;
}
err = mlx4_uar_alloc(dev, &priv->driver_uar);
if (err) {
mlx4_err(dev, "Failed to allocate driver access region, "
"aborting.\n");
goto err_uar_table_free;
}
priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
if (!priv->kar) {
mlx4_err(dev, "Couldn't map kernel access region, "
"aborting.\n");
err = -ENOMEM;
goto err_uar_free;
}
err = mlx4_init_pd_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"protection domain table, aborting.\n");
goto err_kar_unmap;
}
err = mlx4_init_xrcd_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"reliable connection domain table, aborting.\n");
goto err_pd_table_free;
}
err = mlx4_init_mr_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"memory region table, aborting.\n");
goto err_xrcd_table_free;
}
err = mlx4_init_eq_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"event queue table, aborting.\n");
goto err_mr_table_free;
}
err = mlx4_cmd_use_events(dev);
if (err) {
mlx4_err(dev, "Failed to switch to event-driven "
"firmware commands, aborting.\n");
goto err_eq_table_free;
}
err = mlx4_NOP(dev);
if (err) {
if (dev->flags & MLX4_FLAG_MSI_X) {
mlx4_warn(dev, "NOP command failed to generate MSI-X "
"interrupt IRQ %d).\n",
priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
mlx4_warn(dev, "Trying again without MSI-X.\n");
} else {
mlx4_err(dev, "NOP command failed to generate interrupt "
"(IRQ %d), aborting.\n",
priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
}
goto err_cmd_poll;
}
mlx4_dbg(dev, "NOP command IRQ test passed\n");
err = mlx4_init_cq_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"completion queue table, aborting.\n");
goto err_cmd_poll;
}
err = mlx4_init_srq_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"shared receive queue table, aborting.\n");
goto err_cq_table_free;
}
err = mlx4_init_qp_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"queue pair table, aborting.\n");
goto err_srq_table_free;
}
if (!mlx4_is_slave(dev)) {
err = mlx4_init_mcg_table(dev);
if (err) {
mlx4_err(dev, "Failed to initialize "
"multicast group table, aborting.\n");
goto err_qp_table_free;
}
}
err = mlx4_init_counters_table(dev);
if (err && err != -ENOENT) {
mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
goto err_mcg_table_free;
}
if (!mlx4_is_slave(dev)) {
for (port = 1; port <= dev->caps.num_ports; port++) {
if (!mlx4_is_mfunc(dev)) {
enum mlx4_port_type port_type = 0;
mlx4_SENSE_PORT(dev, port, &port_type);
if (port_type)
dev->caps.port_type[port] = port_type;
}
ib_port_default_caps = 0;
err = mlx4_get_port_ib_caps(dev, port,
&ib_port_default_caps);
if (err)
mlx4_warn(dev, "failed to get port %d default "
"ib capabilities (%d). Continuing "
"with caps = 0\n", port, err);
dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
err = mlx4_check_ext_port_caps(dev, port);
if (err)
mlx4_warn(dev, "failed to get port %d extended "
"port capabilities support info (%d)."
" Assuming not supported\n",
port, err);
err = mlx4_SET_PORT(dev, port);
if (err) {
mlx4_err(dev, "Failed to set port %d, aborting\n",
port);
goto err_counters_table_free;
}
}
}
return 0;
err_counters_table_free:
mlx4_cleanup_counters_table(dev);
err_mcg_table_free:
mlx4_cleanup_mcg_table(dev);
err_qp_table_free:
mlx4_cleanup_qp_table(dev);
err_srq_table_free:
mlx4_cleanup_srq_table(dev);
err_cq_table_free:
mlx4_cleanup_cq_table(dev);
err_cmd_poll:
mlx4_cmd_use_polling(dev);
err_eq_table_free:
mlx4_cleanup_eq_table(dev);
err_mr_table_free:
mlx4_cleanup_mr_table(dev);
err_xrcd_table_free:
mlx4_cleanup_xrcd_table(dev);
err_pd_table_free:
mlx4_cleanup_pd_table(dev);
err_kar_unmap:
iounmap(priv->kar);
err_uar_free:
mlx4_uar_free(dev, &priv->driver_uar);
err_uar_table_free:
mlx4_cleanup_uar_table(dev);
return err;
}
static void mlx4_enable_msi_x(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct msix_entry *entries;
int nreq = min_t(int, dev->caps.num_ports *
min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT)
+ MSIX_LEGACY_SZ, MAX_MSIX);
int err;
int i;
if (msi_x) {
/* In multifunction mode each function gets 2 msi-X vectors
* one for data path completions anf the other for asynch events
* or command completions */
if (mlx4_is_mfunc(dev)) {
nreq = 2;
} else {
nreq = min_t(int, dev->caps.num_eqs -
dev->caps.reserved_eqs, nreq);
}
entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
if (!entries)
goto no_msi;
for (i = 0; i < nreq; ++i)
entries[i].entry = i;
retry:
err = pci_enable_msix(dev->pdev, entries, nreq);
if (err) {
/* Try again if at least 2 vectors are available */
if (err > 1) {
mlx4_info(dev, "Requested %d vectors, "
"but only %d MSI-X vectors available, "
"trying again\n", nreq, err);
nreq = err;
goto retry;
}
kfree(entries);
goto no_msi;
}
if (nreq <
MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
/*Working in legacy mode , all EQ's shared*/
dev->caps.comp_pool = 0;
dev->caps.num_comp_vectors = nreq - 1;
} else {
dev->caps.comp_pool = nreq - MSIX_LEGACY_SZ;
dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
}
for (i = 0; i < nreq; ++i)
priv->eq_table.eq[i].irq = entries[i].vector;
dev->flags |= MLX4_FLAG_MSI_X;
kfree(entries);
return;
}
no_msi:
dev->caps.num_comp_vectors = 1;
dev->caps.comp_pool = 0;
for (i = 0; i < 2; ++i)
priv->eq_table.eq[i].irq = dev->pdev->irq;
}
static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
{
struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
int err = 0;
info->dev = dev;
info->port = port;
if (!mlx4_is_slave(dev)) {
INIT_RADIX_TREE(&info->mac_tree, GFP_KERNEL);
mlx4_init_mac_table(dev, &info->mac_table);
mlx4_init_vlan_table(dev, &info->vlan_table);
info->base_qpn =
dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
(port - 1) * (1 << log_num_mac);
}
sprintf(info->dev_name, "mlx4_port%d", port);
info->port_attr.attr.name = info->dev_name;
if (mlx4_is_mfunc(dev))
info->port_attr.attr.mode = S_IRUGO;
else {
info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
info->port_attr.store = set_port_type;
}
info->port_attr.show = show_port_type;
sysfs_attr_init(&info->port_attr.attr);
err = device_create_file(&dev->pdev->dev, &info->port_attr);
if (err) {
mlx4_err(dev, "Failed to create file for port %d\n", port);
info->port = -1;
}
return err;
}
static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
{
if (info->port < 0)
return;
device_remove_file(&info->dev->pdev->dev, &info->port_attr);
}
static int mlx4_init_steering(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
int num_entries = dev->caps.num_ports;
int i, j;
priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
if (!priv->steer)
return -ENOMEM;
for (i = 0; i < num_entries; i++) {
for (j = 0; j < MLX4_NUM_STEERS; j++) {
INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
}
INIT_LIST_HEAD(&priv->steer[i].high_prios);
}
return 0;
}
static void mlx4_clear_steering(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_steer_index *entry, *tmp_entry;
struct mlx4_promisc_qp *pqp, *tmp_pqp;
int num_entries = dev->caps.num_ports;
int i, j;
for (i = 0; i < num_entries; i++) {
for (j = 0; j < MLX4_NUM_STEERS; j++) {
list_for_each_entry_safe(pqp, tmp_pqp,
&priv->steer[i].promisc_qps[j],
list) {
list_del(&pqp->list);
kfree(pqp);
}
list_for_each_entry_safe(entry, tmp_entry,
&priv->steer[i].steer_entries[j],
list) {
list_del(&entry->list);
list_for_each_entry_safe(pqp, tmp_pqp,
&entry->duplicates,
list) {
list_del(&pqp->list);
kfree(pqp);
}
kfree(entry);
}
}
}
kfree(priv->steer);
}
static int extended_func_num(struct pci_dev *pdev)
{
return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
}
#define MLX4_OWNER_BASE 0x8069c
#define MLX4_OWNER_SIZE 4
static int mlx4_get_ownership(struct mlx4_dev *dev)
{
void __iomem *owner;
u32 ret;
owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
MLX4_OWNER_SIZE);
if (!owner) {
mlx4_err(dev, "Failed to obtain ownership bit\n");
return -ENOMEM;
}
ret = readl(owner);
iounmap(owner);
return (int) !!ret;
}
static void mlx4_free_ownership(struct mlx4_dev *dev)
{
void __iomem *owner;
owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
MLX4_OWNER_SIZE);
if (!owner) {
mlx4_err(dev, "Failed to obtain ownership bit\n");
return;
}
writel(0, owner);
msleep(1000);
iounmap(owner);
}
static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct mlx4_priv *priv;
struct mlx4_dev *dev;
int err;
int port;
pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
err = pci_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "Cannot enable PCI device, "
"aborting.\n");
return err;
}
if (num_vfs > MLX4_MAX_NUM_VF) {
printk(KERN_ERR "There are more VF's (%d) than allowed(%d)\n",
num_vfs, MLX4_MAX_NUM_VF);
return -EINVAL;
}
/*
* Check for BARs.
*/
if (((id == NULL) || !(id->driver_data & MLX4_VF)) &&
!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
dev_err(&pdev->dev, "Missing DCS, aborting."
"(id == 0X%p, id->driver_data: 0x%lx,"
" pci_resource_flags(pdev, 0):0x%lx)\n", id,
id ? id->driver_data : 0, pci_resource_flags(pdev, 0));
err = -ENODEV;
goto err_disable_pdev;
}
if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
dev_err(&pdev->dev, "Missing UAR, aborting.\n");
err = -ENODEV;
goto err_disable_pdev;
}
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
goto err_disable_pdev;
}
pci_set_master(pdev);
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
goto err_release_regions;
}
}
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
"consistent PCI DMA mask.\n");
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
"aborting.\n");
goto err_release_regions;
}
}
/* Allow large DMA segments, up to the firmware limit of 1 GB */
dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
priv = kzalloc(sizeof *priv, GFP_KERNEL);
if (!priv) {
dev_err(&pdev->dev, "Device struct alloc failed, "
"aborting.\n");
err = -ENOMEM;
goto err_release_regions;
}
dev = &priv->dev;
dev->pdev = pdev;
INIT_LIST_HEAD(&priv->ctx_list);
spin_lock_init(&priv->ctx_lock);
mutex_init(&priv->port_mutex);
INIT_LIST_HEAD(&priv->pgdir_list);
mutex_init(&priv->pgdir_mutex);
INIT_LIST_HEAD(&priv->bf_list);
mutex_init(&priv->bf_mutex);
dev->rev_id = pdev->revision;
/* Detect if this device is a virtual function */
if (id && id->driver_data & MLX4_VF) {
/* When acting as pf, we normally skip vfs unless explicitly
* requested to probe them. */
if (num_vfs && extended_func_num(pdev) > probe_vf) {
mlx4_warn(dev, "Skipping virtual function:%d\n",
extended_func_num(pdev));
err = -ENODEV;
goto err_free_dev;
}
mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
dev->flags |= MLX4_FLAG_SLAVE;
} else {
/* We reset the device and enable SRIOV only for physical
* devices. Try to claim ownership on the device;
* if already taken, skip -- do not allow multiple PFs */
err = mlx4_get_ownership(dev);
if (err) {
if (err < 0)
goto err_free_dev;
else {
mlx4_warn(dev, "Multiple PFs not yet supported."
" Skipping PF.\n");
err = -EINVAL;
goto err_free_dev;
}
}
if (num_vfs) {
mlx4_warn(dev, "Enabling sriov with:%d vfs\n", num_vfs);
err = pci_enable_sriov(pdev, num_vfs);
if (err) {
mlx4_err(dev, "Failed to enable sriov,"
"continuing without sriov enabled"
" (err = %d).\n", err);
num_vfs = 0;
err = 0;
} else {
mlx4_warn(dev, "Running in master mode\n");
dev->flags |= MLX4_FLAG_SRIOV |
MLX4_FLAG_MASTER;
dev->num_vfs = num_vfs;
}
}
/*
* Now reset the HCA before we touch the PCI capabilities or
* attempt a firmware command, since a boot ROM may have left
* the HCA in an undefined state.
*/
err = mlx4_reset(dev);
if (err) {
mlx4_err(dev, "Failed to reset HCA, aborting.\n");
goto err_rel_own;
}
}
slave_start:
if (mlx4_cmd_init(dev)) {
mlx4_err(dev, "Failed to init command interface, aborting.\n");
goto err_sriov;
}
/* In slave functions, the communication channel must be initialized
* before posting commands. Also, init num_slaves before calling
* mlx4_init_hca */
if (mlx4_is_mfunc(dev)) {
if (mlx4_is_master(dev))
dev->num_slaves = MLX4_MAX_NUM_SLAVES;
else {
dev->num_slaves = 0;
if (mlx4_multi_func_init(dev)) {
mlx4_err(dev, "Failed to init slave mfunc"
" interface, aborting.\n");
goto err_cmd;
}
}
}
err = mlx4_init_hca(dev);
if (err) {
if (err == -EACCES) {
/* Not primary Physical function
* Running in slave mode */
mlx4_cmd_cleanup(dev);
dev->flags |= MLX4_FLAG_SLAVE;
dev->flags &= ~MLX4_FLAG_MASTER;
goto slave_start;
} else
goto err_mfunc;
}
/* In master functions, the communication channel must be initialized
* after obtaining its address from fw */
if (mlx4_is_master(dev)) {
if (mlx4_multi_func_init(dev)) {
mlx4_err(dev, "Failed to init master mfunc"
"interface, aborting.\n");
goto err_close;
}
}
err = mlx4_alloc_eq_table(dev);
if (err)
goto err_master_mfunc;
priv->msix_ctl.pool_bm = 0;
spin_lock_init(&priv->msix_ctl.pool_lock);
mlx4_enable_msi_x(dev);
if ((mlx4_is_mfunc(dev)) &&
!(dev->flags & MLX4_FLAG_MSI_X)) {
mlx4_err(dev, "INTx is not supported in multi-function mode."
" aborting.\n");
goto err_free_eq;
}
if (!mlx4_is_slave(dev)) {
err = mlx4_init_steering(dev);
if (err)
goto err_free_eq;
}
err = mlx4_setup_hca(dev);
if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
!mlx4_is_mfunc(dev)) {
dev->flags &= ~MLX4_FLAG_MSI_X;
pci_disable_msix(pdev);
err = mlx4_setup_hca(dev);
}
if (err)
goto err_steer;
for (port = 1; port <= dev->caps.num_ports; port++) {
err = mlx4_init_port_info(dev, port);
if (err)
goto err_port;
}
err = mlx4_register_device(dev);
if (err)
goto err_port;
mlx4_sense_init(dev);
mlx4_start_sense(dev);
pci_set_drvdata(pdev, dev);
return 0;
err_port:
for (--port; port >= 1; --port)
mlx4_cleanup_port_info(&priv->port[port]);
mlx4_cleanup_counters_table(dev);
mlx4_cleanup_mcg_table(dev);
mlx4_cleanup_qp_table(dev);
mlx4_cleanup_srq_table(dev);
mlx4_cleanup_cq_table(dev);
mlx4_cmd_use_polling(dev);
mlx4_cleanup_eq_table(dev);
mlx4_cleanup_mr_table(dev);
mlx4_cleanup_xrcd_table(dev);
mlx4_cleanup_pd_table(dev);
mlx4_cleanup_uar_table(dev);
err_steer:
if (!mlx4_is_slave(dev))
mlx4_clear_steering(dev);
err_free_eq:
mlx4_free_eq_table(dev);
err_master_mfunc:
if (mlx4_is_master(dev))
mlx4_multi_func_cleanup(dev);
err_close:
if (dev->flags & MLX4_FLAG_MSI_X)
pci_disable_msix(pdev);
mlx4_close_hca(dev);
err_mfunc:
if (mlx4_is_slave(dev))
mlx4_multi_func_cleanup(dev);
err_cmd:
mlx4_cmd_cleanup(dev);
err_sriov:
if (num_vfs && (dev->flags & MLX4_FLAG_SRIOV))
pci_disable_sriov(pdev);
err_rel_own:
if (!mlx4_is_slave(dev))
mlx4_free_ownership(dev);
err_free_dev:
kfree(priv);
err_release_regions:
pci_release_regions(pdev);
err_disable_pdev:
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
return err;
}
static int __devinit mlx4_init_one(struct pci_dev *pdev,
const struct pci_device_id *id)
{
printk_once(KERN_INFO "%s", mlx4_version);
return __mlx4_init_one(pdev, id);
}
static void mlx4_remove_one(struct pci_dev *pdev)
{
struct mlx4_dev *dev = pci_get_drvdata(pdev);
struct mlx4_priv *priv = mlx4_priv(dev);
int p;
if (dev) {
/* in SRIOV it is not allowed to unload the pf's
* driver while there are alive vf's */
if (mlx4_is_master(dev)) {
if (mlx4_how_many_lives_vf(dev))
printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
}
mlx4_stop_sense(dev);
mlx4_unregister_device(dev);
for (p = 1; p <= dev->caps.num_ports; p++) {
mlx4_cleanup_port_info(&priv->port[p]);
mlx4_CLOSE_PORT(dev, p);
}
mlx4_cleanup_counters_table(dev);
mlx4_cleanup_mcg_table(dev);
mlx4_cleanup_qp_table(dev);
mlx4_cleanup_srq_table(dev);
mlx4_cleanup_cq_table(dev);
mlx4_cmd_use_polling(dev);
mlx4_cleanup_eq_table(dev);
mlx4_cleanup_mr_table(dev);
mlx4_cleanup_xrcd_table(dev);
mlx4_cleanup_pd_table(dev);
if (mlx4_is_master(dev))
mlx4_free_resource_tracker(dev);
iounmap(priv->kar);
mlx4_uar_free(dev, &priv->driver_uar);
mlx4_cleanup_uar_table(dev);
if (!mlx4_is_slave(dev))
mlx4_clear_steering(dev);
mlx4_free_eq_table(dev);
if (mlx4_is_master(dev))
mlx4_multi_func_cleanup(dev);
mlx4_close_hca(dev);
if (mlx4_is_slave(dev))
mlx4_multi_func_cleanup(dev);
mlx4_cmd_cleanup(dev);
if (dev->flags & MLX4_FLAG_MSI_X)
pci_disable_msix(pdev);
if (num_vfs && (dev->flags & MLX4_FLAG_SRIOV)) {
mlx4_warn(dev, "Disabling sriov\n");
pci_disable_sriov(pdev);
}
if (!mlx4_is_slave(dev))
mlx4_free_ownership(dev);
kfree(priv);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
}
int mlx4_restart_one(struct pci_dev *pdev)
{
mlx4_remove_one(pdev);
return __mlx4_init_one(pdev, NULL);
}
static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
/* MT25408 "Hermon" SDR */
{ PCI_VDEVICE(MELLANOX, 0x6340), 0 },
/* MT25408 "Hermon" DDR */
{ PCI_VDEVICE(MELLANOX, 0x634a), 0 },
/* MT25408 "Hermon" QDR */
{ PCI_VDEVICE(MELLANOX, 0x6354), 0 },
/* MT25408 "Hermon" DDR PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x6732), 0 },
/* MT25408 "Hermon" QDR PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x673c), 0 },
/* MT25408 "Hermon" EN 10GigE */
{ PCI_VDEVICE(MELLANOX, 0x6368), 0 },
/* MT25408 "Hermon" EN 10GigE PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x6750), 0 },
/* MT25458 ConnectX EN 10GBASE-T 10GigE */
{ PCI_VDEVICE(MELLANOX, 0x6372), 0 },
/* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
{ PCI_VDEVICE(MELLANOX, 0x675a), 0 },
/* MT26468 ConnectX EN 10GigE PCIe gen2*/
{ PCI_VDEVICE(MELLANOX, 0x6764), 0 },
/* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
{ PCI_VDEVICE(MELLANOX, 0x6746), 0 },
/* MT26478 ConnectX2 40GigE PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x676e), 0 },
/* MT25400 Family [ConnectX-2 Virtual Function] */
{ PCI_VDEVICE(MELLANOX, 0x1002), MLX4_VF },
/* MT27500 Family [ConnectX-3] */
{ PCI_VDEVICE(MELLANOX, 0x1003), 0 },
/* MT27500 Family [ConnectX-3 Virtual Function] */
{ PCI_VDEVICE(MELLANOX, 0x1004), MLX4_VF },
{ PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
{ PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
{ PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
{ PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
{ PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
{ PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
{ PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
{ PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
{ PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
{ PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
{ PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
{ PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
static struct pci_driver mlx4_driver = {
.name = DRV_NAME,
.id_table = mlx4_pci_table,
.probe = mlx4_init_one,
.remove = __devexit_p(mlx4_remove_one)
};
static int __init mlx4_verify_params(void)
{
if ((log_num_mac < 0) || (log_num_mac > 7)) {
pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
return -1;
}
if (log_num_vlan != 0)
pr_warning("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
MLX4_LOG_NUM_VLANS);
if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
return -1;
}
/* Check if module param for ports type has legal combination */
if (port_type_array[0] == false && port_type_array[1] == true) {
printk(KERN_WARNING "Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
port_type_array[0] = true;
}
return 0;
}
static int __init mlx4_init(void)
{
int ret;
if (mlx4_verify_params())
return -EINVAL;
mlx4_catas_init();
mlx4_wq = create_singlethread_workqueue("mlx4");
if (!mlx4_wq)
return -ENOMEM;
ret = pci_register_driver(&mlx4_driver);
return ret < 0 ? ret : 0;
}
static void __exit mlx4_cleanup(void)
{
pci_unregister_driver(&mlx4_driver);
destroy_workqueue(mlx4_wq);
}
module_init(mlx4_init);
module_exit(mlx4_cleanup);
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