/*
|
* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
|
* Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
|
*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
|
* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
|
|
#include <linux/string.h>
|
#include <linux/etherdevice.h>
|
|
#include <linux/mlx4/cmd.h>
|
#include <linux/mlx4/qp.h>
|
#include <linux/export.h>
|
|
#include "mlx4.h"
|
|
int mlx4_get_mgm_entry_size(struct mlx4_dev *dev)
|
{
|
return 1 << dev->oper_log_mgm_entry_size;
|
}
|
|
int mlx4_get_qp_per_mgm(struct mlx4_dev *dev)
|
{
|
return 4 * (mlx4_get_mgm_entry_size(dev) / 16 - 2);
|
}
|
|
static int mlx4_QP_FLOW_STEERING_ATTACH(struct mlx4_dev *dev,
|
struct mlx4_cmd_mailbox *mailbox,
|
u32 size,
|
u64 *reg_id)
|
{
|
u64 imm;
|
int err = 0;
|
|
err = mlx4_cmd_imm(dev, mailbox->dma, &imm, size, 0,
|
MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
|
MLX4_CMD_NATIVE);
|
if (err)
|
return err;
|
*reg_id = imm;
|
|
return err;
|
}
|
|
static int mlx4_QP_FLOW_STEERING_DETACH(struct mlx4_dev *dev, u64 regid)
|
{
|
int err = 0;
|
|
err = mlx4_cmd(dev, regid, 0, 0,
|
MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
|
MLX4_CMD_NATIVE);
|
|
return err;
|
}
|
|
static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
|
struct mlx4_cmd_mailbox *mailbox)
|
{
|
return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
|
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
|
}
|
|
static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
|
struct mlx4_cmd_mailbox *mailbox)
|
{
|
return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
|
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
|
}
|
|
static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 port, u8 steer,
|
struct mlx4_cmd_mailbox *mailbox)
|
{
|
u32 in_mod;
|
|
in_mod = (u32) port << 16 | steer << 1;
|
return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1,
|
MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A,
|
MLX4_CMD_NATIVE);
|
}
|
|
static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
|
u16 *hash, u8 op_mod)
|
{
|
u64 imm;
|
int err;
|
|
err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
|
MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A,
|
MLX4_CMD_NATIVE);
|
|
if (!err)
|
*hash = imm;
|
|
return err;
|
}
|
|
static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer,
|
u32 qpn)
|
{
|
struct mlx4_steer *s_steer;
|
struct mlx4_promisc_qp *pqp;
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return NULL;
|
|
s_steer = &mlx4_priv(dev)->steer[port - 1];
|
|
list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
|
if (pqp->qpn == qpn)
|
return pqp;
|
}
|
/* not found */
|
return NULL;
|
}
|
|
/*
|
* Add new entry to steering data structure.
|
* All promisc QPs should be added as well
|
*/
|
static int new_steering_entry(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer,
|
unsigned int index, u32 qpn)
|
{
|
struct mlx4_steer *s_steer;
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_mgm *mgm;
|
u32 members_count;
|
struct mlx4_steer_index *new_entry;
|
struct mlx4_promisc_qp *pqp;
|
struct mlx4_promisc_qp *dqp = NULL;
|
u32 prot;
|
int err;
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return -EINVAL;
|
|
s_steer = &mlx4_priv(dev)->steer[port - 1];
|
new_entry = kzalloc(sizeof(*new_entry), GFP_KERNEL);
|
if (!new_entry)
|
return -ENOMEM;
|
|
INIT_LIST_HEAD(&new_entry->duplicates);
|
new_entry->index = index;
|
list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]);
|
|
/* If the given qpn is also a promisc qp,
|
* it should be inserted to duplicates list
|
*/
|
pqp = get_promisc_qp(dev, port, steer, qpn);
|
if (pqp) {
|
dqp = kmalloc(sizeof(*dqp), GFP_KERNEL);
|
if (!dqp) {
|
err = -ENOMEM;
|
goto out_alloc;
|
}
|
dqp->qpn = qpn;
|
list_add_tail(&dqp->list, &new_entry->duplicates);
|
}
|
|
/* if no promisc qps for this vep, we are done */
|
if (list_empty(&s_steer->promisc_qps[steer]))
|
return 0;
|
|
/* now need to add all the promisc qps to the new
|
* steering entry, as they should also receive the packets
|
* destined to this address */
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox)) {
|
err = -ENOMEM;
|
goto out_alloc;
|
}
|
mgm = mailbox->buf;
|
|
err = mlx4_READ_ENTRY(dev, index, mailbox);
|
if (err)
|
goto out_mailbox;
|
|
members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
prot = be32_to_cpu(mgm->members_count) >> 30;
|
list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
|
/* don't add already existing qpn */
|
if (pqp->qpn == qpn)
|
continue;
|
if (members_count == dev->caps.num_qp_per_mgm) {
|
/* out of space */
|
err = -ENOMEM;
|
goto out_mailbox;
|
}
|
|
/* add the qpn */
|
mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK);
|
}
|
/* update the qps count and update the entry with all the promisc qps*/
|
mgm->members_count = cpu_to_be32(members_count | (prot << 30));
|
err = mlx4_WRITE_ENTRY(dev, index, mailbox);
|
|
out_mailbox:
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
if (!err)
|
return 0;
|
out_alloc:
|
if (dqp) {
|
list_del(&dqp->list);
|
kfree(dqp);
|
}
|
list_del(&new_entry->list);
|
kfree(new_entry);
|
return err;
|
}
|
|
/* update the data structures with existing steering entry */
|
static int existing_steering_entry(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer,
|
unsigned int index, u32 qpn)
|
{
|
struct mlx4_steer *s_steer;
|
struct mlx4_steer_index *tmp_entry, *entry = NULL;
|
struct mlx4_promisc_qp *pqp;
|
struct mlx4_promisc_qp *dqp;
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return -EINVAL;
|
|
s_steer = &mlx4_priv(dev)->steer[port - 1];
|
|
pqp = get_promisc_qp(dev, port, steer, qpn);
|
if (!pqp)
|
return 0; /* nothing to do */
|
|
list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
|
if (tmp_entry->index == index) {
|
entry = tmp_entry;
|
break;
|
}
|
}
|
if (unlikely(!entry)) {
|
mlx4_warn(dev, "Steering entry at index %x is not registered\n", index);
|
return -EINVAL;
|
}
|
|
/* the given qpn is listed as a promisc qpn
|
* we need to add it as a duplicate to this entry
|
* for future references */
|
list_for_each_entry(dqp, &entry->duplicates, list) {
|
if (qpn == dqp->qpn)
|
return 0; /* qp is already duplicated */
|
}
|
|
/* add the qp as a duplicate on this index */
|
dqp = kmalloc(sizeof(*dqp), GFP_KERNEL);
|
if (!dqp)
|
return -ENOMEM;
|
dqp->qpn = qpn;
|
list_add_tail(&dqp->list, &entry->duplicates);
|
|
return 0;
|
}
|
|
/* Check whether a qpn is a duplicate on steering entry
|
* If so, it should not be removed from mgm */
|
static bool check_duplicate_entry(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer,
|
unsigned int index, u32 qpn)
|
{
|
struct mlx4_steer *s_steer;
|
struct mlx4_steer_index *tmp_entry, *entry = NULL;
|
struct mlx4_promisc_qp *dqp, *tmp_dqp;
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return NULL;
|
|
s_steer = &mlx4_priv(dev)->steer[port - 1];
|
|
/* if qp is not promisc, it cannot be duplicated */
|
if (!get_promisc_qp(dev, port, steer, qpn))
|
return false;
|
|
/* The qp is promisc qp so it is a duplicate on this index
|
* Find the index entry, and remove the duplicate */
|
list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
|
if (tmp_entry->index == index) {
|
entry = tmp_entry;
|
break;
|
}
|
}
|
if (unlikely(!entry)) {
|
mlx4_warn(dev, "Steering entry for index %x is not registered\n", index);
|
return false;
|
}
|
list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) {
|
if (dqp->qpn == qpn) {
|
list_del(&dqp->list);
|
kfree(dqp);
|
}
|
}
|
return true;
|
}
|
|
/* Returns true if all the QPs != tqpn contained in this entry
|
* are Promisc QPs. Returns false otherwise.
|
*/
|
static bool promisc_steering_entry(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer,
|
unsigned int index, u32 tqpn,
|
u32 *members_count)
|
{
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_mgm *mgm;
|
u32 m_count;
|
bool ret = false;
|
int i;
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return false;
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox))
|
return false;
|
mgm = mailbox->buf;
|
|
if (mlx4_READ_ENTRY(dev, index, mailbox))
|
goto out;
|
m_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
if (members_count)
|
*members_count = m_count;
|
|
for (i = 0; i < m_count; i++) {
|
u32 qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK;
|
if (!get_promisc_qp(dev, port, steer, qpn) && qpn != tqpn) {
|
/* the qp is not promisc, the entry can't be removed */
|
goto out;
|
}
|
}
|
ret = true;
|
out:
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
return ret;
|
}
|
|
/* IF a steering entry contains only promisc QPs, it can be removed. */
|
static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer,
|
unsigned int index, u32 tqpn)
|
{
|
struct mlx4_steer *s_steer;
|
struct mlx4_steer_index *entry = NULL, *tmp_entry;
|
u32 members_count;
|
bool ret = false;
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return NULL;
|
|
s_steer = &mlx4_priv(dev)->steer[port - 1];
|
|
if (!promisc_steering_entry(dev, port, steer, index,
|
tqpn, &members_count))
|
goto out;
|
|
/* All the qps currently registered for this entry are promiscuous,
|
* Checking for duplicates */
|
ret = true;
|
list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) {
|
if (entry->index == index) {
|
if (list_empty(&entry->duplicates) ||
|
members_count == 1) {
|
struct mlx4_promisc_qp *pqp, *tmp_pqp;
|
/* If there is only 1 entry in duplicates then
|
* this is the QP we want to delete, going over
|
* the list and deleting the entry.
|
*/
|
list_del(&entry->list);
|
list_for_each_entry_safe(pqp, tmp_pqp,
|
&entry->duplicates,
|
list) {
|
list_del(&pqp->list);
|
kfree(pqp);
|
}
|
kfree(entry);
|
} else {
|
/* This entry contains duplicates so it shouldn't be removed */
|
ret = false;
|
goto out;
|
}
|
}
|
}
|
|
out:
|
return ret;
|
}
|
|
static int add_promisc_qp(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer, u32 qpn)
|
{
|
struct mlx4_steer *s_steer;
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_mgm *mgm;
|
struct mlx4_steer_index *entry;
|
struct mlx4_promisc_qp *pqp;
|
struct mlx4_promisc_qp *dqp;
|
u32 members_count;
|
u32 prot;
|
int i;
|
bool found;
|
int err;
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return -EINVAL;
|
|
s_steer = &mlx4_priv(dev)->steer[port - 1];
|
|
mutex_lock(&priv->mcg_table.mutex);
|
|
if (get_promisc_qp(dev, port, steer, qpn)) {
|
err = 0; /* Noting to do, already exists */
|
goto out_mutex;
|
}
|
|
pqp = kmalloc(sizeof(*pqp), GFP_KERNEL);
|
if (!pqp) {
|
err = -ENOMEM;
|
goto out_mutex;
|
}
|
pqp->qpn = qpn;
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox)) {
|
err = -ENOMEM;
|
goto out_alloc;
|
}
|
mgm = mailbox->buf;
|
|
if (!(mlx4_is_mfunc(dev) && steer == MLX4_UC_STEER)) {
|
/* The promisc QP needs to be added for each one of the steering
|
* entries. If it already exists, needs to be added as
|
* a duplicate for this entry.
|
*/
|
list_for_each_entry(entry,
|
&s_steer->steer_entries[steer],
|
list) {
|
err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
|
if (err)
|
goto out_mailbox;
|
|
members_count = be32_to_cpu(mgm->members_count) &
|
0xffffff;
|
prot = be32_to_cpu(mgm->members_count) >> 30;
|
found = false;
|
for (i = 0; i < members_count; i++) {
|
if ((be32_to_cpu(mgm->qp[i]) &
|
MGM_QPN_MASK) == qpn) {
|
/* Entry already exists.
|
* Add to duplicates.
|
*/
|
dqp = kmalloc(sizeof(*dqp), GFP_KERNEL);
|
if (!dqp) {
|
err = -ENOMEM;
|
goto out_mailbox;
|
}
|
dqp->qpn = qpn;
|
list_add_tail(&dqp->list,
|
&entry->duplicates);
|
found = true;
|
}
|
}
|
if (!found) {
|
/* Need to add the qpn to mgm */
|
if (members_count ==
|
dev->caps.num_qp_per_mgm) {
|
/* entry is full */
|
err = -ENOMEM;
|
goto out_mailbox;
|
}
|
mgm->qp[members_count++] =
|
cpu_to_be32(qpn & MGM_QPN_MASK);
|
mgm->members_count =
|
cpu_to_be32(members_count |
|
(prot << 30));
|
err = mlx4_WRITE_ENTRY(dev, entry->index,
|
mailbox);
|
if (err)
|
goto out_mailbox;
|
}
|
}
|
}
|
|
/* add the new qpn to list of promisc qps */
|
list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
|
/* now need to add all the promisc qps to default entry */
|
memset(mgm, 0, sizeof(*mgm));
|
members_count = 0;
|
list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list) {
|
if (members_count == dev->caps.num_qp_per_mgm) {
|
/* entry is full */
|
err = -ENOMEM;
|
goto out_list;
|
}
|
mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
|
}
|
mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
|
|
err = mlx4_WRITE_PROMISC(dev, port, steer, mailbox);
|
if (err)
|
goto out_list;
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
mutex_unlock(&priv->mcg_table.mutex);
|
return 0;
|
|
out_list:
|
list_del(&pqp->list);
|
out_mailbox:
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
out_alloc:
|
kfree(pqp);
|
out_mutex:
|
mutex_unlock(&priv->mcg_table.mutex);
|
return err;
|
}
|
|
static int remove_promisc_qp(struct mlx4_dev *dev, u8 port,
|
enum mlx4_steer_type steer, u32 qpn)
|
{
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
struct mlx4_steer *s_steer;
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_mgm *mgm;
|
struct mlx4_steer_index *entry, *tmp_entry;
|
struct mlx4_promisc_qp *pqp;
|
struct mlx4_promisc_qp *dqp;
|
u32 members_count;
|
bool found;
|
bool back_to_list = false;
|
int i;
|
int err;
|
|
if (port < 1 || port > dev->caps.num_ports)
|
return -EINVAL;
|
|
s_steer = &mlx4_priv(dev)->steer[port - 1];
|
mutex_lock(&priv->mcg_table.mutex);
|
|
pqp = get_promisc_qp(dev, port, steer, qpn);
|
if (unlikely(!pqp)) {
|
mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn);
|
/* nothing to do */
|
err = 0;
|
goto out_mutex;
|
}
|
|
/*remove from list of promisc qps */
|
list_del(&pqp->list);
|
|
/* set the default entry not to include the removed one */
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox)) {
|
err = -ENOMEM;
|
back_to_list = true;
|
goto out_list;
|
}
|
mgm = mailbox->buf;
|
members_count = 0;
|
list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
|
mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
|
mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
|
|
err = mlx4_WRITE_PROMISC(dev, port, steer, mailbox);
|
if (err)
|
goto out_mailbox;
|
|
if (!(mlx4_is_mfunc(dev) && steer == MLX4_UC_STEER)) {
|
/* Remove the QP from all the steering entries */
|
list_for_each_entry_safe(entry, tmp_entry,
|
&s_steer->steer_entries[steer],
|
list) {
|
found = false;
|
list_for_each_entry(dqp, &entry->duplicates, list) {
|
if (dqp->qpn == qpn) {
|
found = true;
|
break;
|
}
|
}
|
if (found) {
|
/* A duplicate, no need to change the MGM,
|
* only update the duplicates list
|
*/
|
list_del(&dqp->list);
|
kfree(dqp);
|
} else {
|
int loc = -1;
|
|
err = mlx4_READ_ENTRY(dev,
|
entry->index,
|
mailbox);
|
if (err)
|
goto out_mailbox;
|
members_count =
|
be32_to_cpu(mgm->members_count) &
|
0xffffff;
|
if (!members_count) {
|
mlx4_warn(dev, "QP %06x wasn't found in entry %x mcount=0. deleting entry...\n",
|
qpn, entry->index);
|
list_del(&entry->list);
|
kfree(entry);
|
continue;
|
}
|
|
for (i = 0; i < members_count; ++i)
|
if ((be32_to_cpu(mgm->qp[i]) &
|
MGM_QPN_MASK) == qpn) {
|
loc = i;
|
break;
|
}
|
|
if (loc < 0) {
|
mlx4_err(dev, "QP %06x wasn't found in entry %d\n",
|
qpn, entry->index);
|
err = -EINVAL;
|
goto out_mailbox;
|
}
|
|
/* Copy the last QP in this MGM
|
* over removed QP
|
*/
|
mgm->qp[loc] = mgm->qp[members_count - 1];
|
mgm->qp[members_count - 1] = 0;
|
mgm->members_count =
|
cpu_to_be32(--members_count |
|
(MLX4_PROT_ETH << 30));
|
|
err = mlx4_WRITE_ENTRY(dev,
|
entry->index,
|
mailbox);
|
if (err)
|
goto out_mailbox;
|
}
|
}
|
}
|
|
out_mailbox:
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
out_list:
|
if (back_to_list)
|
list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
|
else
|
kfree(pqp);
|
out_mutex:
|
mutex_unlock(&priv->mcg_table.mutex);
|
return err;
|
}
|
|
/*
|
* Caller must hold MCG table semaphore. gid and mgm parameters must
|
* be properly aligned for command interface.
|
*
|
* Returns 0 unless a firmware command error occurs.
|
*
|
* If GID is found in MGM or MGM is empty, *index = *hash, *prev = -1
|
* and *mgm holds MGM entry.
|
*
|
* if GID is found in AMGM, *index = index in AMGM, *prev = index of
|
* previous entry in hash chain and *mgm holds AMGM entry.
|
*
|
* If no AMGM exists for given gid, *index = -1, *prev = index of last
|
* entry in hash chain and *mgm holds end of hash chain.
|
*/
|
static int find_entry(struct mlx4_dev *dev, u8 port,
|
u8 *gid, enum mlx4_protocol prot,
|
struct mlx4_cmd_mailbox *mgm_mailbox,
|
int *prev, int *index)
|
{
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_mgm *mgm = mgm_mailbox->buf;
|
u8 *mgid;
|
int err;
|
u16 hash;
|
u8 op_mod = (prot == MLX4_PROT_ETH) ?
|
!!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) : 0;
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox))
|
return -ENOMEM;
|
mgid = mailbox->buf;
|
|
memcpy(mgid, gid, 16);
|
|
err = mlx4_GID_HASH(dev, mailbox, &hash, op_mod);
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
if (err)
|
return err;
|
|
if (0)
|
mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, hash);
|
|
*index = hash;
|
*prev = -1;
|
|
do {
|
err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox);
|
if (err)
|
return err;
|
|
if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
|
if (*index != hash) {
|
mlx4_err(dev, "Found zero MGID in AMGM\n");
|
err = -EINVAL;
|
}
|
return err;
|
}
|
|
if (!memcmp(mgm->gid, gid, 16) &&
|
be32_to_cpu(mgm->members_count) >> 30 == prot)
|
return err;
|
|
*prev = *index;
|
*index = be32_to_cpu(mgm->next_gid_index) >> 6;
|
} while (*index);
|
|
*index = -1;
|
return err;
|
}
|
|
static const u8 __promisc_mode[] = {
|
[MLX4_FS_REGULAR] = 0x0,
|
[MLX4_FS_ALL_DEFAULT] = 0x1,
|
[MLX4_FS_MC_DEFAULT] = 0x3,
|
[MLX4_FS_MIRROR_RX_PORT] = 0x4,
|
[MLX4_FS_MIRROR_SX_PORT] = 0x5,
|
[MLX4_FS_UC_SNIFFER] = 0x6,
|
[MLX4_FS_MC_SNIFFER] = 0x7,
|
};
|
|
int mlx4_map_sw_to_hw_steering_mode(struct mlx4_dev *dev,
|
enum mlx4_net_trans_promisc_mode flow_type)
|
{
|
if (flow_type >= MLX4_FS_MODE_NUM) {
|
mlx4_err(dev, "Invalid flow type. type = %d\n", flow_type);
|
return -EINVAL;
|
}
|
return __promisc_mode[flow_type];
|
}
|
EXPORT_SYMBOL_GPL(mlx4_map_sw_to_hw_steering_mode);
|
|
static void trans_rule_ctrl_to_hw(struct mlx4_net_trans_rule *ctrl,
|
struct mlx4_net_trans_rule_hw_ctrl *hw)
|
{
|
u8 flags = 0;
|
|
flags = ctrl->queue_mode == MLX4_NET_TRANS_Q_LIFO ? 1 : 0;
|
flags |= ctrl->exclusive ? (1 << 2) : 0;
|
flags |= ctrl->allow_loopback ? (1 << 3) : 0;
|
|
hw->flags = flags;
|
hw->type = __promisc_mode[ctrl->promisc_mode];
|
hw->prio = cpu_to_be16(ctrl->priority);
|
hw->port = ctrl->port;
|
hw->qpn = cpu_to_be32(ctrl->qpn);
|
}
|
|
const u16 __sw_id_hw[] = {
|
[MLX4_NET_TRANS_RULE_ID_ETH] = 0xE001,
|
[MLX4_NET_TRANS_RULE_ID_IB] = 0xE005,
|
[MLX4_NET_TRANS_RULE_ID_IPV6] = 0xE003,
|
[MLX4_NET_TRANS_RULE_ID_IPV4] = 0xE002,
|
[MLX4_NET_TRANS_RULE_ID_TCP] = 0xE004,
|
[MLX4_NET_TRANS_RULE_ID_UDP] = 0xE006,
|
[MLX4_NET_TRANS_RULE_ID_VXLAN] = 0xE008
|
};
|
|
int mlx4_map_sw_to_hw_steering_id(struct mlx4_dev *dev,
|
enum mlx4_net_trans_rule_id id)
|
{
|
if (id >= MLX4_NET_TRANS_RULE_NUM) {
|
mlx4_err(dev, "Invalid network rule id. id = %d\n", id);
|
return -EINVAL;
|
}
|
return __sw_id_hw[id];
|
}
|
EXPORT_SYMBOL_GPL(mlx4_map_sw_to_hw_steering_id);
|
|
static const int __rule_hw_sz[] = {
|
[MLX4_NET_TRANS_RULE_ID_ETH] =
|
sizeof(struct mlx4_net_trans_rule_hw_eth),
|
[MLX4_NET_TRANS_RULE_ID_IB] =
|
sizeof(struct mlx4_net_trans_rule_hw_ib),
|
[MLX4_NET_TRANS_RULE_ID_IPV6] = 0,
|
[MLX4_NET_TRANS_RULE_ID_IPV4] =
|
sizeof(struct mlx4_net_trans_rule_hw_ipv4),
|
[MLX4_NET_TRANS_RULE_ID_TCP] =
|
sizeof(struct mlx4_net_trans_rule_hw_tcp_udp),
|
[MLX4_NET_TRANS_RULE_ID_UDP] =
|
sizeof(struct mlx4_net_trans_rule_hw_tcp_udp),
|
[MLX4_NET_TRANS_RULE_ID_VXLAN] =
|
sizeof(struct mlx4_net_trans_rule_hw_vxlan)
|
};
|
|
int mlx4_hw_rule_sz(struct mlx4_dev *dev,
|
enum mlx4_net_trans_rule_id id)
|
{
|
if (id >= MLX4_NET_TRANS_RULE_NUM) {
|
mlx4_err(dev, "Invalid network rule id. id = %d\n", id);
|
return -EINVAL;
|
}
|
|
return __rule_hw_sz[id];
|
}
|
EXPORT_SYMBOL_GPL(mlx4_hw_rule_sz);
|
|
static int parse_trans_rule(struct mlx4_dev *dev, struct mlx4_spec_list *spec,
|
struct _rule_hw *rule_hw)
|
{
|
if (mlx4_hw_rule_sz(dev, spec->id) < 0)
|
return -EINVAL;
|
memset(rule_hw, 0, mlx4_hw_rule_sz(dev, spec->id));
|
rule_hw->id = cpu_to_be16(__sw_id_hw[spec->id]);
|
rule_hw->size = mlx4_hw_rule_sz(dev, spec->id) >> 2;
|
|
switch (spec->id) {
|
case MLX4_NET_TRANS_RULE_ID_ETH:
|
memcpy(rule_hw->eth.dst_mac, spec->eth.dst_mac, ETH_ALEN);
|
memcpy(rule_hw->eth.dst_mac_msk, spec->eth.dst_mac_msk,
|
ETH_ALEN);
|
memcpy(rule_hw->eth.src_mac, spec->eth.src_mac, ETH_ALEN);
|
memcpy(rule_hw->eth.src_mac_msk, spec->eth.src_mac_msk,
|
ETH_ALEN);
|
if (spec->eth.ether_type_enable) {
|
rule_hw->eth.ether_type_enable = 1;
|
rule_hw->eth.ether_type = spec->eth.ether_type;
|
}
|
rule_hw->eth.vlan_tag = spec->eth.vlan_id;
|
rule_hw->eth.vlan_tag_msk = spec->eth.vlan_id_msk;
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_IB:
|
rule_hw->ib.l3_qpn = spec->ib.l3_qpn;
|
rule_hw->ib.qpn_mask = spec->ib.qpn_msk;
|
memcpy(&rule_hw->ib.dst_gid, &spec->ib.dst_gid, 16);
|
memcpy(&rule_hw->ib.dst_gid_msk, &spec->ib.dst_gid_msk, 16);
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_IPV6:
|
return -EOPNOTSUPP;
|
|
case MLX4_NET_TRANS_RULE_ID_IPV4:
|
rule_hw->ipv4.src_ip = spec->ipv4.src_ip;
|
rule_hw->ipv4.src_ip_msk = spec->ipv4.src_ip_msk;
|
rule_hw->ipv4.dst_ip = spec->ipv4.dst_ip;
|
rule_hw->ipv4.dst_ip_msk = spec->ipv4.dst_ip_msk;
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_TCP:
|
case MLX4_NET_TRANS_RULE_ID_UDP:
|
rule_hw->tcp_udp.dst_port = spec->tcp_udp.dst_port;
|
rule_hw->tcp_udp.dst_port_msk = spec->tcp_udp.dst_port_msk;
|
rule_hw->tcp_udp.src_port = spec->tcp_udp.src_port;
|
rule_hw->tcp_udp.src_port_msk = spec->tcp_udp.src_port_msk;
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_VXLAN:
|
rule_hw->vxlan.vni =
|
cpu_to_be32(be32_to_cpu(spec->vxlan.vni) << 8);
|
rule_hw->vxlan.vni_mask =
|
cpu_to_be32(be32_to_cpu(spec->vxlan.vni_mask) << 8);
|
break;
|
|
default:
|
return -EINVAL;
|
}
|
|
return __rule_hw_sz[spec->id];
|
}
|
|
static void mlx4_err_rule(struct mlx4_dev *dev, char *str,
|
struct mlx4_net_trans_rule *rule)
|
{
|
#define BUF_SIZE 256
|
struct mlx4_spec_list *cur;
|
char buf[BUF_SIZE];
|
int len = 0;
|
|
mlx4_err(dev, "%s", str);
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"port = %d prio = 0x%x qp = 0x%x ",
|
rule->port, rule->priority, rule->qpn);
|
|
list_for_each_entry(cur, &rule->list, list) {
|
switch (cur->id) {
|
case MLX4_NET_TRANS_RULE_ID_ETH:
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"dmac = %pM ", &cur->eth.dst_mac);
|
if (cur->eth.ether_type)
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"ethertype = 0x%x ",
|
be16_to_cpu(cur->eth.ether_type));
|
if (cur->eth.vlan_id)
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"vlan-id = %d ",
|
be16_to_cpu(cur->eth.vlan_id));
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_IPV4:
|
if (cur->ipv4.src_ip)
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"src-ip = %pI4 ",
|
&cur->ipv4.src_ip);
|
if (cur->ipv4.dst_ip)
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"dst-ip = %pI4 ",
|
&cur->ipv4.dst_ip);
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_TCP:
|
case MLX4_NET_TRANS_RULE_ID_UDP:
|
if (cur->tcp_udp.src_port)
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"src-port = %d ",
|
be16_to_cpu(cur->tcp_udp.src_port));
|
if (cur->tcp_udp.dst_port)
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"dst-port = %d ",
|
be16_to_cpu(cur->tcp_udp.dst_port));
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_IB:
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"dst-gid = %pI6\n", cur->ib.dst_gid);
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"dst-gid-mask = %pI6\n",
|
cur->ib.dst_gid_msk);
|
break;
|
|
case MLX4_NET_TRANS_RULE_ID_VXLAN:
|
len += scnprintf(buf + len, BUF_SIZE - len,
|
"VNID = %d ", be32_to_cpu(cur->vxlan.vni));
|
break;
|
case MLX4_NET_TRANS_RULE_ID_IPV6:
|
break;
|
|
default:
|
break;
|
}
|
}
|
len += scnprintf(buf + len, BUF_SIZE - len, "\n");
|
mlx4_err(dev, "%s", buf);
|
|
if (len >= BUF_SIZE)
|
mlx4_err(dev, "Network rule error message was truncated, print buffer is too small\n");
|
}
|
|
int mlx4_flow_attach(struct mlx4_dev *dev,
|
struct mlx4_net_trans_rule *rule, u64 *reg_id)
|
{
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_spec_list *cur;
|
u32 size = 0;
|
int ret;
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox))
|
return PTR_ERR(mailbox);
|
|
if (!mlx4_qp_lookup(dev, rule->qpn)) {
|
mlx4_err_rule(dev, "QP doesn't exist\n", rule);
|
ret = -EINVAL;
|
goto out;
|
}
|
|
trans_rule_ctrl_to_hw(rule, mailbox->buf);
|
|
size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
|
|
list_for_each_entry(cur, &rule->list, list) {
|
ret = parse_trans_rule(dev, cur, mailbox->buf + size);
|
if (ret < 0)
|
goto out;
|
|
size += ret;
|
}
|
|
ret = mlx4_QP_FLOW_STEERING_ATTACH(dev, mailbox, size >> 2, reg_id);
|
if (ret == -ENOMEM) {
|
mlx4_err_rule(dev,
|
"mcg table is full. Fail to register network rule\n",
|
rule);
|
} else if (ret) {
|
if (ret == -ENXIO) {
|
if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
|
mlx4_err_rule(dev,
|
"DMFS is not enabled, "
|
"failed to register network rule.\n",
|
rule);
|
else
|
mlx4_err_rule(dev,
|
"Rule exceeds the dmfs_high_rate_mode limitations, "
|
"failed to register network rule.\n",
|
rule);
|
|
} else {
|
mlx4_err_rule(dev, "Fail to register network rule.\n", rule);
|
}
|
}
|
|
out:
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
|
return ret;
|
}
|
EXPORT_SYMBOL_GPL(mlx4_flow_attach);
|
|
int mlx4_flow_detach(struct mlx4_dev *dev, u64 reg_id)
|
{
|
int err;
|
|
err = mlx4_QP_FLOW_STEERING_DETACH(dev, reg_id);
|
if (err)
|
mlx4_err(dev, "Fail to detach network rule. registration id = 0x%llx\n",
|
reg_id);
|
return err;
|
}
|
EXPORT_SYMBOL_GPL(mlx4_flow_detach);
|
|
int mlx4_tunnel_steer_add(struct mlx4_dev *dev, unsigned char *addr,
|
int port, int qpn, u16 prio, u64 *reg_id)
|
{
|
int err;
|
struct mlx4_spec_list spec_eth_outer = { {NULL} };
|
struct mlx4_spec_list spec_vxlan = { {NULL} };
|
struct mlx4_spec_list spec_eth_inner = { {NULL} };
|
|
struct mlx4_net_trans_rule rule = {
|
.queue_mode = MLX4_NET_TRANS_Q_FIFO,
|
.exclusive = 0,
|
.allow_loopback = 1,
|
.promisc_mode = MLX4_FS_REGULAR,
|
};
|
|
__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
|
|
rule.port = port;
|
rule.qpn = qpn;
|
rule.priority = prio;
|
INIT_LIST_HEAD(&rule.list);
|
|
spec_eth_outer.id = MLX4_NET_TRANS_RULE_ID_ETH;
|
memcpy(spec_eth_outer.eth.dst_mac, addr, ETH_ALEN);
|
memcpy(spec_eth_outer.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
|
|
spec_vxlan.id = MLX4_NET_TRANS_RULE_ID_VXLAN; /* any vxlan header */
|
spec_eth_inner.id = MLX4_NET_TRANS_RULE_ID_ETH; /* any inner eth header */
|
|
list_add_tail(&spec_eth_outer.list, &rule.list);
|
list_add_tail(&spec_vxlan.list, &rule.list);
|
list_add_tail(&spec_eth_inner.list, &rule.list);
|
|
err = mlx4_flow_attach(dev, &rule, reg_id);
|
return err;
|
}
|
EXPORT_SYMBOL(mlx4_tunnel_steer_add);
|
|
int mlx4_FLOW_STEERING_IB_UC_QP_RANGE(struct mlx4_dev *dev, u32 min_range_qpn,
|
u32 max_range_qpn)
|
{
|
int err;
|
u64 in_param;
|
|
in_param = ((u64) min_range_qpn) << 32;
|
in_param |= ((u64) max_range_qpn) & 0xFFFFFFFF;
|
|
err = mlx4_cmd(dev, in_param, 0, 0,
|
MLX4_FLOW_STEERING_IB_UC_QP_RANGE,
|
MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
|
|
return err;
|
}
|
EXPORT_SYMBOL_GPL(mlx4_FLOW_STEERING_IB_UC_QP_RANGE);
|
|
int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
int block_mcast_loopback, enum mlx4_protocol prot,
|
enum mlx4_steer_type steer)
|
{
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_mgm *mgm;
|
u32 members_count;
|
int index = -1, prev;
|
int link = 0;
|
int i;
|
int err;
|
u8 port = gid[5];
|
u8 new_entry = 0;
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox))
|
return PTR_ERR(mailbox);
|
mgm = mailbox->buf;
|
|
mutex_lock(&priv->mcg_table.mutex);
|
err = find_entry(dev, port, gid, prot,
|
mailbox, &prev, &index);
|
if (err)
|
goto out;
|
|
if (index != -1) {
|
if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
|
new_entry = 1;
|
memcpy(mgm->gid, gid, 16);
|
}
|
} else {
|
link = 1;
|
|
index = mlx4_bitmap_alloc(&priv->mcg_table.bitmap);
|
if (index == -1) {
|
mlx4_err(dev, "No AMGM entries left\n");
|
err = -ENOMEM;
|
goto out;
|
}
|
index += dev->caps.num_mgms;
|
|
new_entry = 1;
|
memset(mgm, 0, sizeof(*mgm));
|
memcpy(mgm->gid, gid, 16);
|
}
|
|
members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
if (members_count == dev->caps.num_qp_per_mgm) {
|
mlx4_err(dev, "MGM at index %x is full\n", index);
|
err = -ENOMEM;
|
goto out;
|
}
|
|
for (i = 0; i < members_count; ++i)
|
if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) {
|
mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn);
|
err = 0;
|
goto out;
|
}
|
|
if (block_mcast_loopback)
|
mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
|
(1U << MGM_BLCK_LB_BIT));
|
else
|
mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
|
|
mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30);
|
|
err = mlx4_WRITE_ENTRY(dev, index, mailbox);
|
if (err)
|
goto out;
|
|
if (!link)
|
goto out;
|
|
err = mlx4_READ_ENTRY(dev, prev, mailbox);
|
if (err)
|
goto out;
|
|
mgm->next_gid_index = cpu_to_be32(index << 6);
|
|
err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
|
if (err)
|
goto out;
|
|
out:
|
if (prot == MLX4_PROT_ETH && index != -1) {
|
/* manage the steering entry for promisc mode */
|
if (new_entry)
|
err = new_steering_entry(dev, port, steer,
|
index, qp->qpn);
|
else
|
err = existing_steering_entry(dev, port, steer,
|
index, qp->qpn);
|
}
|
if (err && link && index != -1) {
|
if (index < dev->caps.num_mgms)
|
mlx4_warn(dev, "Got AMGM index %d < %d\n",
|
index, dev->caps.num_mgms);
|
else
|
mlx4_bitmap_free(&priv->mcg_table.bitmap,
|
index - dev->caps.num_mgms, MLX4_USE_RR);
|
}
|
mutex_unlock(&priv->mcg_table.mutex);
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
return err;
|
}
|
|
int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
enum mlx4_protocol prot, enum mlx4_steer_type steer)
|
{
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
struct mlx4_cmd_mailbox *mailbox;
|
struct mlx4_mgm *mgm;
|
u32 members_count;
|
int prev, index;
|
int i, loc = -1;
|
int err;
|
u8 port = gid[5];
|
bool removed_entry = false;
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox))
|
return PTR_ERR(mailbox);
|
mgm = mailbox->buf;
|
|
mutex_lock(&priv->mcg_table.mutex);
|
|
err = find_entry(dev, port, gid, prot,
|
mailbox, &prev, &index);
|
if (err)
|
goto out;
|
|
if (index == -1) {
|
mlx4_err(dev, "MGID %pI6 not found\n", gid);
|
err = -EINVAL;
|
goto out;
|
}
|
|
/* If this QP is also a promisc QP, it shouldn't be removed only if
|
* at least one none promisc QP is also attached to this MCG
|
*/
|
if (prot == MLX4_PROT_ETH &&
|
check_duplicate_entry(dev, port, steer, index, qp->qpn) &&
|
!promisc_steering_entry(dev, port, steer, index, qp->qpn, NULL))
|
goto out;
|
|
members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
for (i = 0; i < members_count; ++i)
|
if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) {
|
loc = i;
|
break;
|
}
|
|
if (loc == -1) {
|
mlx4_err(dev, "QP %06x not found in MGM\n", qp->qpn);
|
err = -EINVAL;
|
goto out;
|
}
|
|
/* copy the last QP in this MGM over removed QP */
|
mgm->qp[loc] = mgm->qp[members_count - 1];
|
mgm->qp[members_count - 1] = 0;
|
mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30);
|
|
if (prot == MLX4_PROT_ETH)
|
removed_entry = can_remove_steering_entry(dev, port, steer,
|
index, qp->qpn);
|
if (members_count && (prot != MLX4_PROT_ETH || !removed_entry)) {
|
err = mlx4_WRITE_ENTRY(dev, index, mailbox);
|
goto out;
|
}
|
|
/* We are going to delete the entry, members count should be 0 */
|
mgm->members_count = cpu_to_be32((u32) prot << 30);
|
|
if (prev == -1) {
|
/* Remove entry from MGM */
|
int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
|
if (amgm_index) {
|
err = mlx4_READ_ENTRY(dev, amgm_index, mailbox);
|
if (err)
|
goto out;
|
} else
|
memset(mgm->gid, 0, 16);
|
|
err = mlx4_WRITE_ENTRY(dev, index, mailbox);
|
if (err)
|
goto out;
|
|
if (amgm_index) {
|
if (amgm_index < dev->caps.num_mgms)
|
mlx4_warn(dev, "MGM entry %d had AMGM index %d < %d\n",
|
index, amgm_index, dev->caps.num_mgms);
|
else
|
mlx4_bitmap_free(&priv->mcg_table.bitmap,
|
amgm_index - dev->caps.num_mgms, MLX4_USE_RR);
|
}
|
} else {
|
/* Remove entry from AMGM */
|
int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
|
err = mlx4_READ_ENTRY(dev, prev, mailbox);
|
if (err)
|
goto out;
|
|
mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
|
|
err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
|
if (err)
|
goto out;
|
|
if (index < dev->caps.num_mgms)
|
mlx4_warn(dev, "entry %d had next AMGM index %d < %d\n",
|
prev, index, dev->caps.num_mgms);
|
else
|
mlx4_bitmap_free(&priv->mcg_table.bitmap,
|
index - dev->caps.num_mgms, MLX4_USE_RR);
|
}
|
|
out:
|
mutex_unlock(&priv->mcg_table.mutex);
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
if (err && dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)
|
/* In case device is under an error, return success as a closing command */
|
err = 0;
|
return err;
|
}
|
|
static int mlx4_QP_ATTACH(struct mlx4_dev *dev, struct mlx4_qp *qp,
|
u8 gid[16], u8 attach, u8 block_loopback,
|
enum mlx4_protocol prot)
|
{
|
struct mlx4_cmd_mailbox *mailbox;
|
int err = 0;
|
int qpn;
|
|
if (!mlx4_is_mfunc(dev))
|
return -EBADF;
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
if (IS_ERR(mailbox))
|
return PTR_ERR(mailbox);
|
|
memcpy(mailbox->buf, gid, 16);
|
qpn = qp->qpn;
|
qpn |= (prot << 28);
|
if (attach && block_loopback)
|
qpn |= (1 << 31);
|
|
err = mlx4_cmd(dev, mailbox->dma, qpn, attach,
|
MLX4_CMD_QP_ATTACH, MLX4_CMD_TIME_CLASS_A,
|
MLX4_CMD_WRAPPED);
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
if (err && !attach &&
|
dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR)
|
err = 0;
|
return err;
|
}
|
|
int mlx4_trans_to_dmfs_attach(struct mlx4_dev *dev, struct mlx4_qp *qp,
|
u8 gid[16], u8 port,
|
int block_mcast_loopback,
|
enum mlx4_protocol prot, u64 *reg_id)
|
{
|
struct mlx4_spec_list spec = { {NULL} };
|
__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
|
|
struct mlx4_net_trans_rule rule = {
|
.queue_mode = MLX4_NET_TRANS_Q_FIFO,
|
.exclusive = 0,
|
.promisc_mode = MLX4_FS_REGULAR,
|
.priority = MLX4_DOMAIN_NIC,
|
};
|
|
rule.allow_loopback = !block_mcast_loopback;
|
rule.port = port;
|
rule.qpn = qp->qpn;
|
INIT_LIST_HEAD(&rule.list);
|
|
switch (prot) {
|
case MLX4_PROT_ETH:
|
spec.id = MLX4_NET_TRANS_RULE_ID_ETH;
|
memcpy(spec.eth.dst_mac, &gid[10], ETH_ALEN);
|
memcpy(spec.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
|
break;
|
|
case MLX4_PROT_IB_IPV6:
|
spec.id = MLX4_NET_TRANS_RULE_ID_IB;
|
memcpy(spec.ib.dst_gid, gid, 16);
|
memset(&spec.ib.dst_gid_msk, 0xff, 16);
|
break;
|
default:
|
return -EINVAL;
|
}
|
list_add_tail(&spec.list, &rule.list);
|
|
return mlx4_flow_attach(dev, &rule, reg_id);
|
}
|
|
int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
u8 port, int block_mcast_loopback,
|
enum mlx4_protocol prot, u64 *reg_id)
|
{
|
switch (dev->caps.steering_mode) {
|
case MLX4_STEERING_MODE_A0:
|
if (prot == MLX4_PROT_ETH)
|
return 0;
|
fallthrough;
|
|
case MLX4_STEERING_MODE_B0:
|
if (prot == MLX4_PROT_ETH)
|
gid[7] |= (MLX4_MC_STEER << 1);
|
|
if (mlx4_is_mfunc(dev))
|
return mlx4_QP_ATTACH(dev, qp, gid, 1,
|
block_mcast_loopback, prot);
|
return mlx4_qp_attach_common(dev, qp, gid,
|
block_mcast_loopback, prot,
|
MLX4_MC_STEER);
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED:
|
return mlx4_trans_to_dmfs_attach(dev, qp, gid, port,
|
block_mcast_loopback,
|
prot, reg_id);
|
default:
|
return -EINVAL;
|
}
|
}
|
EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
|
|
int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
enum mlx4_protocol prot, u64 reg_id)
|
{
|
switch (dev->caps.steering_mode) {
|
case MLX4_STEERING_MODE_A0:
|
if (prot == MLX4_PROT_ETH)
|
return 0;
|
fallthrough;
|
|
case MLX4_STEERING_MODE_B0:
|
if (prot == MLX4_PROT_ETH)
|
gid[7] |= (MLX4_MC_STEER << 1);
|
|
if (mlx4_is_mfunc(dev))
|
return mlx4_QP_ATTACH(dev, qp, gid, 0, 0, prot);
|
|
return mlx4_qp_detach_common(dev, qp, gid, prot,
|
MLX4_MC_STEER);
|
|
case MLX4_STEERING_MODE_DEVICE_MANAGED:
|
return mlx4_flow_detach(dev, reg_id);
|
|
default:
|
return -EINVAL;
|
}
|
}
|
EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
|
|
int mlx4_flow_steer_promisc_add(struct mlx4_dev *dev, u8 port,
|
u32 qpn, enum mlx4_net_trans_promisc_mode mode)
|
{
|
struct mlx4_net_trans_rule rule = {
|
.queue_mode = MLX4_NET_TRANS_Q_FIFO,
|
.exclusive = 0,
|
.allow_loopback = 1,
|
};
|
|
u64 *regid_p;
|
|
switch (mode) {
|
case MLX4_FS_ALL_DEFAULT:
|
regid_p = &dev->regid_promisc_array[port];
|
break;
|
case MLX4_FS_MC_DEFAULT:
|
regid_p = &dev->regid_allmulti_array[port];
|
break;
|
default:
|
return -1;
|
}
|
|
if (*regid_p != 0)
|
return -1;
|
|
rule.promisc_mode = mode;
|
rule.port = port;
|
rule.qpn = qpn;
|
INIT_LIST_HEAD(&rule.list);
|
mlx4_info(dev, "going promisc on %x\n", port);
|
|
return mlx4_flow_attach(dev, &rule, regid_p);
|
}
|
EXPORT_SYMBOL_GPL(mlx4_flow_steer_promisc_add);
|
|
int mlx4_flow_steer_promisc_remove(struct mlx4_dev *dev, u8 port,
|
enum mlx4_net_trans_promisc_mode mode)
|
{
|
int ret;
|
u64 *regid_p;
|
|
switch (mode) {
|
case MLX4_FS_ALL_DEFAULT:
|
regid_p = &dev->regid_promisc_array[port];
|
break;
|
case MLX4_FS_MC_DEFAULT:
|
regid_p = &dev->regid_allmulti_array[port];
|
break;
|
default:
|
return -1;
|
}
|
|
if (*regid_p == 0)
|
return -1;
|
|
ret = mlx4_flow_detach(dev, *regid_p);
|
if (ret == 0)
|
*regid_p = 0;
|
|
return ret;
|
}
|
EXPORT_SYMBOL_GPL(mlx4_flow_steer_promisc_remove);
|
|
int mlx4_unicast_attach(struct mlx4_dev *dev,
|
struct mlx4_qp *qp, u8 gid[16],
|
int block_mcast_loopback, enum mlx4_protocol prot)
|
{
|
if (prot == MLX4_PROT_ETH)
|
gid[7] |= (MLX4_UC_STEER << 1);
|
|
if (mlx4_is_mfunc(dev))
|
return mlx4_QP_ATTACH(dev, qp, gid, 1,
|
block_mcast_loopback, prot);
|
|
return mlx4_qp_attach_common(dev, qp, gid, block_mcast_loopback,
|
prot, MLX4_UC_STEER);
|
}
|
EXPORT_SYMBOL_GPL(mlx4_unicast_attach);
|
|
int mlx4_unicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp,
|
u8 gid[16], enum mlx4_protocol prot)
|
{
|
if (prot == MLX4_PROT_ETH)
|
gid[7] |= (MLX4_UC_STEER << 1);
|
|
if (mlx4_is_mfunc(dev))
|
return mlx4_QP_ATTACH(dev, qp, gid, 0, 0, prot);
|
|
return mlx4_qp_detach_common(dev, qp, gid, prot, MLX4_UC_STEER);
|
}
|
EXPORT_SYMBOL_GPL(mlx4_unicast_detach);
|
|
int mlx4_PROMISC_wrapper(struct mlx4_dev *dev, int slave,
|
struct mlx4_vhcr *vhcr,
|
struct mlx4_cmd_mailbox *inbox,
|
struct mlx4_cmd_mailbox *outbox,
|
struct mlx4_cmd_info *cmd)
|
{
|
u32 qpn = (u32) vhcr->in_param & 0xffffffff;
|
int port = mlx4_slave_convert_port(dev, slave, vhcr->in_param >> 62);
|
enum mlx4_steer_type steer = vhcr->in_modifier;
|
|
if (port < 0)
|
return -EINVAL;
|
|
/* Promiscuous unicast is not allowed in mfunc */
|
if (mlx4_is_mfunc(dev) && steer == MLX4_UC_STEER)
|
return 0;
|
|
if (vhcr->op_modifier)
|
return add_promisc_qp(dev, port, steer, qpn);
|
else
|
return remove_promisc_qp(dev, port, steer, qpn);
|
}
|
|
static int mlx4_PROMISC(struct mlx4_dev *dev, u32 qpn,
|
enum mlx4_steer_type steer, u8 add, u8 port)
|
{
|
return mlx4_cmd(dev, (u64) qpn | (u64) port << 62, (u32) steer, add,
|
MLX4_CMD_PROMISC, MLX4_CMD_TIME_CLASS_A,
|
MLX4_CMD_WRAPPED);
|
}
|
|
int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
|
{
|
if (mlx4_is_mfunc(dev))
|
return mlx4_PROMISC(dev, qpn, MLX4_MC_STEER, 1, port);
|
|
return add_promisc_qp(dev, port, MLX4_MC_STEER, qpn);
|
}
|
EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add);
|
|
int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
|
{
|
if (mlx4_is_mfunc(dev))
|
return mlx4_PROMISC(dev, qpn, MLX4_MC_STEER, 0, port);
|
|
return remove_promisc_qp(dev, port, MLX4_MC_STEER, qpn);
|
}
|
EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove);
|
|
int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
|
{
|
if (mlx4_is_mfunc(dev))
|
return mlx4_PROMISC(dev, qpn, MLX4_UC_STEER, 1, port);
|
|
return add_promisc_qp(dev, port, MLX4_UC_STEER, qpn);
|
}
|
EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add);
|
|
int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
|
{
|
if (mlx4_is_mfunc(dev))
|
return mlx4_PROMISC(dev, qpn, MLX4_UC_STEER, 0, port);
|
|
return remove_promisc_qp(dev, port, MLX4_UC_STEER, qpn);
|
}
|
EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove);
|
|
int mlx4_init_mcg_table(struct mlx4_dev *dev)
|
{
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
int err;
|
|
/* No need for mcg_table when fw managed the mcg table*/
|
if (dev->caps.steering_mode ==
|
MLX4_STEERING_MODE_DEVICE_MANAGED)
|
return 0;
|
err = mlx4_bitmap_init(&priv->mcg_table.bitmap, dev->caps.num_amgms,
|
dev->caps.num_amgms - 1, 0, 0);
|
if (err)
|
return err;
|
|
mutex_init(&priv->mcg_table.mutex);
|
|
return 0;
|
}
|
|
void mlx4_cleanup_mcg_table(struct mlx4_dev *dev)
|
{
|
if (dev->caps.steering_mode !=
|
MLX4_STEERING_MODE_DEVICE_MANAGED)
|
mlx4_bitmap_cleanup(&mlx4_priv(dev)->mcg_table.bitmap);
|
}
|
