---help---
Ethernet support in Mellanox Technologies ConnectX-4 NIC.
+config MLX5_MPFS
+ bool "Mellanox Technologies MLX5 MPFS support"
+ depends on MLX5_CORE_EN
+ default y
+ ---help---
+ Mellanox Technologies Ethernet Multi-Physical Function Switch (MPFS)
+ support in ConnectX NIC. MPFs is required for when multi-PF configuration
+ is enabled to allow passing user configured unicast MAC addresses to the
+ requesting PF.
+
config MLX5_CORE_EN_DCB
bool "Data Center Bridging (DCB) Support"
default y
en_rx.o en_rx_am.o en_txrx.o en_clock.o vxlan.o \
en_tc.o en_arfs.o en_rep.o en_fs_ethtool.o en_selftest.o
+mlx5_core-$(CONFIG_MLX5_MPFS) += lib/mpfs.o
+
mlx5_core-$(CONFIG_MLX5_CORE_EN_DCB) += en_dcbnl.o
mlx5_core-$(CONFIG_MLX5_CORE_IPOIB) += ipoib/ipoib.o ipoib/ethtool.o
#include <linux/tcp.h>
#include <linux/mlx5/fs.h>
#include "en.h"
+#include "lib/mpfs.h"
static int mlx5e_add_l2_flow_rule(struct mlx5e_priv *priv,
struct mlx5e_l2_rule *ai, int type);
struct hlist_node hlist;
u8 action;
struct mlx5e_l2_rule ai;
+ bool mpfs;
};
static inline int mlx5e_hash_l2(u8 *addr)
static void mlx5e_execute_l2_action(struct mlx5e_priv *priv,
struct mlx5e_l2_hash_node *hn)
{
- switch (hn->action) {
+ u8 action = hn->action;
+ int l2_err = 0;
+
+ switch (action) {
case MLX5E_ACTION_ADD:
mlx5e_add_l2_flow_rule(priv, &hn->ai, MLX5E_FULLMATCH);
+ if (!is_multicast_ether_addr(hn->ai.addr)) {
+ l2_err = mlx5_mpfs_add_mac(priv->mdev, hn->ai.addr);
+ hn->mpfs = !l2_err;
+ }
hn->action = MLX5E_ACTION_NONE;
break;
case MLX5E_ACTION_DEL:
+ if (!is_multicast_ether_addr(hn->ai.addr) && hn->mpfs)
+ l2_err = mlx5_mpfs_del_mac(priv->mdev, hn->ai.addr);
mlx5e_del_l2_flow_rule(priv, &hn->ai);
mlx5e_del_l2_from_hash(hn);
break;
}
+
+ if (l2_err)
+ netdev_warn(priv->netdev, "MPFS, failed to %s mac %pM, err(%d)\n",
+ action == MLX5E_ACTION_ADD ? "add" : "del", hn->ai.addr, l2_err);
}
static void mlx5e_sync_netdev_addr(struct mlx5e_priv *priv)
MLX5_ACTION_DEL = 2,
};
-/* E-Switch UC L2 table hash node */
-struct esw_uc_addr {
- struct l2addr_node node;
- u32 table_index;
- u32 vport;
-};
-
/* Vport UC/MC hash node */
struct vport_addr {
struct l2addr_node node;
u8 action;
u32 vport;
- struct mlx5_flow_handle *flow_rule; /* SRIOV only */
+ struct mlx5_flow_handle *flow_rule;
+ bool mpfs; /* UC MAC was added to MPFs */
/* A flag indicating that mac was added due to mc promiscuous vport */
bool mc_promisc;
};
return modify_esw_vport_context_cmd(dev, vport, in, sizeof(in));
}
-/* HW L2 Table (MPFS) management */
-static int set_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index,
- u8 *mac, u8 vlan_valid, u16 vlan)
-{
- u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)] = {0};
- u32 out[MLX5_ST_SZ_DW(set_l2_table_entry_out)] = {0};
- u8 *in_mac_addr;
-
- MLX5_SET(set_l2_table_entry_in, in, opcode,
- MLX5_CMD_OP_SET_L2_TABLE_ENTRY);
- MLX5_SET(set_l2_table_entry_in, in, table_index, index);
- MLX5_SET(set_l2_table_entry_in, in, vlan_valid, vlan_valid);
- MLX5_SET(set_l2_table_entry_in, in, vlan, vlan);
-
- in_mac_addr = MLX5_ADDR_OF(set_l2_table_entry_in, in, mac_address);
- ether_addr_copy(&in_mac_addr[2], mac);
-
- return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
-}
-
-static int del_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index)
-{
- u32 in[MLX5_ST_SZ_DW(delete_l2_table_entry_in)] = {0};
- u32 out[MLX5_ST_SZ_DW(delete_l2_table_entry_out)] = {0};
-
- MLX5_SET(delete_l2_table_entry_in, in, opcode,
- MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
- MLX5_SET(delete_l2_table_entry_in, in, table_index, index);
- return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
-}
-
-static int alloc_l2_table_index(struct mlx5_l2_table *l2_table, u32 *ix)
-{
- int err = 0;
-
- *ix = find_first_zero_bit(l2_table->bitmap, l2_table->size);
- if (*ix >= l2_table->size)
- err = -ENOSPC;
- else
- __set_bit(*ix, l2_table->bitmap);
-
- return err;
-}
-
-static void free_l2_table_index(struct mlx5_l2_table *l2_table, u32 ix)
-{
- __clear_bit(ix, l2_table->bitmap);
-}
-
-static int set_l2_table_entry(struct mlx5_core_dev *dev, u8 *mac,
- u8 vlan_valid, u16 vlan,
- u32 *index)
-{
- struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;
- int err;
-
- err = alloc_l2_table_index(l2_table, index);
- if (err)
- return err;
-
- err = set_l2_table_entry_cmd(dev, *index, mac, vlan_valid, vlan);
- if (err)
- free_l2_table_index(l2_table, *index);
-
- return err;
-}
-
-static void del_l2_table_entry(struct mlx5_core_dev *dev, u32 index)
-{
- struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;
-
- del_l2_table_entry_cmd(dev, index);
- free_l2_table_index(l2_table, index);
-}
-
/* E-Switch FDB */
static struct mlx5_flow_handle *
__esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u32 vport, bool rx_rule,
static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
- struct hlist_head *hash = esw->l2_table.l2_hash;
- struct esw_uc_addr *esw_uc;
u8 *mac = vaddr->node.addr;
u32 vport = vaddr->vport;
int err;
- esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
- if (esw_uc) {
+ /* Skip mlx5_mpfs_add_mac for PFs,
+ * it is already done by the PF netdev in mlx5e_execute_l2_action
+ */
+ if (!vport)
+ goto fdb_add;
+
+ err = mlx5_mpfs_add_mac(esw->dev, mac);
+ if (err) {
esw_warn(esw->dev,
- "Failed to set L2 mac(%pM) for vport(%d), mac is already in use by vport(%d)\n",
- mac, vport, esw_uc->vport);
- return -EEXIST;
+ "Failed to add L2 table mac(%pM) for vport(%d), err(%d)\n",
+ mac, vport, err);
+ return err;
}
+ vaddr->mpfs = true;
- esw_uc = l2addr_hash_add(hash, mac, struct esw_uc_addr, GFP_KERNEL);
- if (!esw_uc)
- return -ENOMEM;
- esw_uc->vport = vport;
-
- err = set_l2_table_entry(esw->dev, mac, 0, 0, &esw_uc->table_index);
- if (err)
- goto abort;
-
+fdb_add:
/* SRIOV is enabled: Forward UC MAC to vport */
if (esw->fdb_table.fdb && esw->mode == SRIOV_LEGACY)
vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);
- esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM index:%d fr(%p)\n",
- vport, mac, esw_uc->table_index, vaddr->flow_rule);
- return err;
-abort:
- l2addr_hash_del(esw_uc);
+ esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n",
+ vport, mac, vaddr->flow_rule);
+
return err;
}
static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
- struct hlist_head *hash = esw->l2_table.l2_hash;
- struct esw_uc_addr *esw_uc;
u8 *mac = vaddr->node.addr;
u32 vport = vaddr->vport;
+ int err = 0;
- esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
- if (!esw_uc || esw_uc->vport != vport) {
- esw_debug(esw->dev,
- "MAC(%pM) doesn't belong to vport (%d)\n",
- mac, vport);
- return -EINVAL;
- }
- esw_debug(esw->dev, "\tDELETE UC MAC: vport[%d] %pM index:%d fr(%p)\n",
- vport, mac, esw_uc->table_index, vaddr->flow_rule);
+ /* Skip mlx5_mpfs_del_mac for PFs,
+ * it is already done by the PF netdev in mlx5e_execute_l2_action
+ */
+ if (!vport || !vaddr->mpfs)
+ goto fdb_del;
- del_l2_table_entry(esw->dev, esw_uc->table_index);
+ err = mlx5_mpfs_del_mac(esw->dev, mac);
+ if (err)
+ esw_warn(esw->dev,
+ "Failed to del L2 table mac(%pM) for vport(%d), err(%d)\n",
+ mac, vport, err);
+ vaddr->mpfs = false;
+fdb_del:
if (vaddr->flow_rule)
mlx5_del_flow_rules(vaddr->flow_rule);
vaddr->flow_rule = NULL;
- l2addr_hash_del(esw_uc);
return 0;
}
esw_info(esw->dev, "E-Switch enable SRIOV: nvfs(%d) mode (%d)\n", nvfs, mode);
esw->mode = mode;
- esw_disable_vport(esw, 0);
if (mode == SRIOV_LEGACY)
err = esw_create_legacy_fdb_table(esw, nvfs + 1);
if (err)
esw_warn(esw->dev, "Failed to create eswitch TSAR");
- enabled_events = (mode == SRIOV_LEGACY) ? SRIOV_VPORT_EVENTS : UC_ADDR_CHANGE;
+ /* Don't enable vport events when in SRIOV_OFFLOADS mode, since:
+ * 1. L2 table (MPFS) is programmed by PF/VF representors netdevs set_rx_mode
+ * 2. FDB/Eswitch is programmed by user space tools
+ */
+ enabled_events = (mode == SRIOV_LEGACY) ? SRIOV_VPORT_EVENTS : 0;
for (i = 0; i <= nvfs; i++)
esw_enable_vport(esw, i, enabled_events);
return 0;
abort:
- esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
esw->mode = SRIOV_NONE;
return err;
}
esw_offloads_cleanup(esw, nvports);
esw->mode = SRIOV_NONE;
- /* VPORT 0 (PF) must be enabled back with non-sriov configuration */
- esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
-}
-
-void mlx5_eswitch_attach(struct mlx5_eswitch *esw)
-{
- if (!ESW_ALLOWED(esw))
- return;
-
- esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
- /* VF Vports will be enabled when SRIOV is enabled */
-}
-
-void mlx5_eswitch_detach(struct mlx5_eswitch *esw)
-{
- if (!ESW_ALLOWED(esw))
- return;
-
- esw_disable_vport(esw, 0);
}
int mlx5_eswitch_init(struct mlx5_core_dev *dev)
{
- int l2_table_size = 1 << MLX5_CAP_GEN(dev, log_max_l2_table);
int total_vports = MLX5_TOTAL_VPORTS(dev);
struct mlx5_eswitch *esw;
int vport_num;
return 0;
esw_info(dev,
- "Total vports %d, l2 table size(%d), per vport: max uc(%d) max mc(%d)\n",
- total_vports, l2_table_size,
+ "Total vports %d, per vport: max uc(%d) max mc(%d)\n",
+ total_vports,
MLX5_MAX_UC_PER_VPORT(dev),
MLX5_MAX_MC_PER_VPORT(dev));
esw->dev = dev;
- esw->l2_table.bitmap = kcalloc(BITS_TO_LONGS(l2_table_size),
- sizeof(uintptr_t), GFP_KERNEL);
- if (!esw->l2_table.bitmap) {
- err = -ENOMEM;
- goto abort;
- }
- esw->l2_table.size = l2_table_size;
-
esw->work_queue = create_singlethread_workqueue("mlx5_esw_wq");
if (!esw->work_queue) {
err = -ENOMEM;
abort:
if (esw->work_queue)
destroy_workqueue(esw->work_queue);
- kfree(esw->l2_table.bitmap);
kfree(esw->vports);
kfree(esw->offloads.vport_reps);
kfree(esw);
esw->dev->priv.eswitch = NULL;
destroy_workqueue(esw->work_queue);
- kfree(esw->l2_table.bitmap);
kfree(esw->offloads.vport_reps);
kfree(esw->vports);
kfree(esw);
#include <linux/if_link.h>
#include <net/devlink.h>
#include <linux/mlx5/device.h>
+#include "lib/mpfs.h"
#define MLX5_MAX_UC_PER_VPORT(dev) \
(1 << MLX5_CAP_GEN(dev, log_max_current_uc_list))
#define MLX5_MAX_MC_PER_VPORT(dev) \
(1 << MLX5_CAP_GEN(dev, log_max_current_mc_list))
-#define MLX5_L2_ADDR_HASH_SIZE (BIT(BITS_PER_BYTE))
-#define MLX5_L2_ADDR_HASH(addr) (addr[5])
-
#define FDB_UPLINK_VPORT 0xffff
#define MLX5_MIN_BW_SHARE 1
#define MLX5_RATE_TO_BW_SHARE(rate, divider, limit) \
min_t(u32, max_t(u32, (rate) / (divider), MLX5_MIN_BW_SHARE), limit)
-/* L2 -mac address based- hash helpers */
-struct l2addr_node {
- struct hlist_node hlist;
- u8 addr[ETH_ALEN];
-};
-
-#define for_each_l2hash_node(hn, tmp, hash, i) \
- for (i = 0; i < MLX5_L2_ADDR_HASH_SIZE; i++) \
- hlist_for_each_entry_safe(hn, tmp, &hash[i], hlist)
-
-#define l2addr_hash_find(hash, mac, type) ({ \
- int ix = MLX5_L2_ADDR_HASH(mac); \
- bool found = false; \
- type *ptr = NULL; \
- \
- hlist_for_each_entry(ptr, &hash[ix], node.hlist) \
- if (ether_addr_equal(ptr->node.addr, mac)) {\
- found = true; \
- break; \
- } \
- if (!found) \
- ptr = NULL; \
- ptr; \
-})
-
-#define l2addr_hash_add(hash, mac, type, gfp) ({ \
- int ix = MLX5_L2_ADDR_HASH(mac); \
- type *ptr = NULL; \
- \
- ptr = kzalloc(sizeof(type), gfp); \
- if (ptr) { \
- ether_addr_copy(ptr->node.addr, mac); \
- hlist_add_head(&ptr->node.hlist, &hash[ix]);\
- } \
- ptr; \
-})
-
-#define l2addr_hash_del(ptr) ({ \
- hlist_del(&ptr->node.hlist); \
- kfree(ptr); \
-})
-
struct vport_ingress {
struct mlx5_flow_table *acl;
struct mlx5_flow_group *allow_untagged_spoofchk_grp;
u16 enabled_events;
};
-struct mlx5_l2_table {
- struct hlist_head l2_hash[MLX5_L2_ADDR_HASH_SIZE];
- u32 size;
- unsigned long *bitmap;
-};
-
struct mlx5_eswitch_fdb {
void *fdb;
union {
struct mlx5_eswitch {
struct mlx5_core_dev *dev;
- struct mlx5_l2_table l2_table;
struct mlx5_eswitch_fdb fdb_table;
struct hlist_head mc_table[MLX5_L2_ADDR_HASH_SIZE];
struct workqueue_struct *work_queue;
/* E-Switch API */
int mlx5_eswitch_init(struct mlx5_core_dev *dev);
void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
-void mlx5_eswitch_attach(struct mlx5_eswitch *esw);
-void mlx5_eswitch_detach(struct mlx5_eswitch *esw);
void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe);
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode);
void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw);
--- /dev/null
+/*
+ * Copyright (c) 2017, Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/mlx5/driver.h>
+#include <linux/mlx5/mlx5_ifc.h>
+#include "mlx5_core.h"
+#include "lib/mpfs.h"
+
+/* HW L2 Table (MPFS) management */
+static int set_l2table_entry_cmd(struct mlx5_core_dev *dev, u32 index, u8 *mac)
+{
+ u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)] = {0};
+ u32 out[MLX5_ST_SZ_DW(set_l2_table_entry_out)] = {0};
+ u8 *in_mac_addr;
+
+ MLX5_SET(set_l2_table_entry_in, in, opcode, MLX5_CMD_OP_SET_L2_TABLE_ENTRY);
+ MLX5_SET(set_l2_table_entry_in, in, table_index, index);
+
+ in_mac_addr = MLX5_ADDR_OF(set_l2_table_entry_in, in, mac_address);
+ ether_addr_copy(&in_mac_addr[2], mac);
+
+ return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}
+
+static int del_l2table_entry_cmd(struct mlx5_core_dev *dev, u32 index)
+{
+ u32 in[MLX5_ST_SZ_DW(delete_l2_table_entry_in)] = {0};
+ u32 out[MLX5_ST_SZ_DW(delete_l2_table_entry_out)] = {0};
+
+ MLX5_SET(delete_l2_table_entry_in, in, opcode, MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
+ MLX5_SET(delete_l2_table_entry_in, in, table_index, index);
+ return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}
+
+/* UC L2 table hash node */
+struct l2table_node {
+ struct l2addr_node node;
+ u32 index; /* index in HW l2 table */
+};
+
+struct mlx5_mpfs {
+ struct hlist_head hash[MLX5_L2_ADDR_HASH_SIZE];
+ struct mutex lock; /* Synchronize l2 table access */
+ u32 size;
+ unsigned long *bitmap;
+};
+
+static int alloc_l2table_index(struct mlx5_mpfs *l2table, u32 *ix)
+{
+ int err = 0;
+
+ *ix = find_first_zero_bit(l2table->bitmap, l2table->size);
+ if (*ix >= l2table->size)
+ err = -ENOSPC;
+ else
+ __set_bit(*ix, l2table->bitmap);
+
+ return err;
+}
+
+static void free_l2table_index(struct mlx5_mpfs *l2table, u32 ix)
+{
+ __clear_bit(ix, l2table->bitmap);
+}
+
+int mlx5_mpfs_init(struct mlx5_core_dev *dev)
+{
+ int l2table_size = 1 << MLX5_CAP_GEN(dev, log_max_l2_table);
+ struct mlx5_mpfs *mpfs;
+
+ if (!MLX5_VPORT_MANAGER(dev))
+ return 0;
+
+ mpfs = kzalloc(sizeof(*mpfs), GFP_KERNEL);
+ if (!mpfs)
+ return -ENOMEM;
+
+ mutex_init(&mpfs->lock);
+ mpfs->size = l2table_size;
+ mpfs->bitmap = kcalloc(BITS_TO_LONGS(l2table_size),
+ sizeof(uintptr_t), GFP_KERNEL);
+ if (!mpfs->bitmap) {
+ kfree(mpfs);
+ return -ENOMEM;
+ }
+
+ dev->priv.mpfs = mpfs;
+ return 0;
+}
+
+void mlx5_mpfs_cleanup(struct mlx5_core_dev *dev)
+{
+ struct mlx5_mpfs *mpfs = dev->priv.mpfs;
+
+ if (!MLX5_VPORT_MANAGER(dev))
+ return;
+
+ WARN_ON(!hlist_empty(mpfs->hash));
+ kfree(mpfs->bitmap);
+ kfree(mpfs);
+}
+
+int mlx5_mpfs_add_mac(struct mlx5_core_dev *dev, u8 *mac)
+{
+ struct mlx5_mpfs *mpfs = dev->priv.mpfs;
+ struct l2table_node *l2addr;
+ u32 index;
+ int err;
+
+ if (!MLX5_VPORT_MANAGER(dev))
+ return 0;
+
+ mutex_lock(&mpfs->lock);
+
+ l2addr = l2addr_hash_find(mpfs->hash, mac, struct l2table_node);
+ if (l2addr) {
+ err = -EEXIST;
+ goto abort;
+ }
+
+ err = alloc_l2table_index(mpfs, &index);
+ if (err)
+ goto abort;
+
+ l2addr = l2addr_hash_add(mpfs->hash, mac, struct l2table_node, GFP_KERNEL);
+ if (!l2addr) {
+ free_l2table_index(mpfs, index);
+ err = -ENOMEM;
+ goto abort;
+ }
+
+ l2addr->index = index;
+ err = set_l2table_entry_cmd(dev, index, mac);
+ if (err) {
+ l2addr_hash_del(l2addr);
+ free_l2table_index(mpfs, index);
+ }
+
+ mlx5_core_dbg(dev, "MPFS mac added %pM, index (%d)\n", mac, index);
+abort:
+ mutex_unlock(&mpfs->lock);
+ return err;
+}
+
+int mlx5_mpfs_del_mac(struct mlx5_core_dev *dev, u8 *mac)
+{
+ struct mlx5_mpfs *mpfs = dev->priv.mpfs;
+ struct l2table_node *l2addr;
+ int err = 0;
+ u32 index;
+
+ if (!MLX5_VPORT_MANAGER(dev))
+ return 0;
+
+ mutex_lock(&mpfs->lock);
+
+ l2addr = l2addr_hash_find(mpfs->hash, mac, struct l2table_node);
+ if (!l2addr) {
+ err = -ENOENT;
+ goto unlock;
+ }
+
+ index = l2addr->index;
+ del_l2table_entry_cmd(dev, index);
+ l2addr_hash_del(l2addr);
+ free_l2table_index(mpfs, index);
+ mlx5_core_dbg(dev, "MPFS mac deleted %pM, index (%d)\n", mac, index);
+unlock:
+ mutex_unlock(&mpfs->lock);
+ return err;
+}
--- /dev/null
+/*
+ * Copyright (c) 2017, Mellanox Technologies, Ltd. 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.
+ */
+
+#ifndef __MLX5_MPFS_H__
+#define __MLX5_MPFS_H__
+
+#include <linux/if_ether.h>
+#include <linux/mlx5/device.h>
+
+/* L2 -mac address based- hash helpers */
+#define MLX5_L2_ADDR_HASH_SIZE (BIT(BITS_PER_BYTE))
+#define MLX5_L2_ADDR_HASH(addr) (addr[5])
+
+struct l2addr_node {
+ struct hlist_node hlist;
+ u8 addr[ETH_ALEN];
+};
+
+#define for_each_l2hash_node(hn, tmp, hash, i) \
+ for (i = 0; i < MLX5_L2_ADDR_HASH_SIZE; i++) \
+ hlist_for_each_entry_safe(hn, tmp, &(hash)[i], hlist)
+
+#define l2addr_hash_find(hash, mac, type) ({ \
+ int ix = MLX5_L2_ADDR_HASH(mac); \
+ bool found = false; \
+ type *ptr = NULL; \
+ \
+ hlist_for_each_entry(ptr, &(hash)[ix], node.hlist) \
+ if (ether_addr_equal(ptr->node.addr, mac)) {\
+ found = true; \
+ break; \
+ } \
+ if (!found) \
+ ptr = NULL; \
+ ptr; \
+})
+
+#define l2addr_hash_add(hash, mac, type, gfp) ({ \
+ int ix = MLX5_L2_ADDR_HASH(mac); \
+ type *ptr = NULL; \
+ \
+ ptr = kzalloc(sizeof(type), gfp); \
+ if (ptr) { \
+ ether_addr_copy(ptr->node.addr, mac); \
+ hlist_add_head(&ptr->node.hlist, &(hash)[ix]);\
+ } \
+ ptr; \
+})
+
+#define l2addr_hash_del(ptr) ({ \
+ hlist_del(&(ptr)->node.hlist); \
+ kfree(ptr); \
+})
+
+#ifdef CONFIG_MLX5_MPFS
+int mlx5_mpfs_init(struct mlx5_core_dev *dev);
+void mlx5_mpfs_cleanup(struct mlx5_core_dev *dev);
+int mlx5_mpfs_add_mac(struct mlx5_core_dev *dev, u8 *mac);
+int mlx5_mpfs_del_mac(struct mlx5_core_dev *dev, u8 *mac);
+#else /* #ifndef CONFIG_MLX5_MPFS */
+static inline int mlx5_mpfs_init(struct mlx5_core_dev *dev) { return 0; }
+static inline void mlx5_mpfs_cleanup(struct mlx5_core_dev *dev) {}
+static inline int mlx5_mpfs_add_mac(struct mlx5_core_dev *dev, u8 *mac) { return 0; }
+static inline int mlx5_mpfs_del_mac(struct mlx5_core_dev *dev, u8 *mac) { return 0; }
+#endif
+#endif
#include <net/devlink.h>
#include "mlx5_core.h"
#include "fs_core.h"
+#include "lib/mpfs.h"
#ifdef CONFIG_MLX5_CORE_EN
#include "eswitch.h"
#endif
goto err_tables_cleanup;
}
+ err = mlx5_mpfs_init(dev);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to init l2 table %d\n", err);
+ goto err_rl_cleanup;
+ }
+
#ifdef CONFIG_MLX5_CORE_EN
err = mlx5_eswitch_init(dev);
if (err) {
dev_err(&pdev->dev, "Failed to init eswitch %d\n", err);
- goto err_rl_cleanup;
+ goto err_mpfs_cleanup;
}
#endif
err_eswitch_cleanup:
#ifdef CONFIG_MLX5_CORE_EN
mlx5_eswitch_cleanup(dev->priv.eswitch);
-
-err_rl_cleanup:
+err_mpfs_cleanup:
#endif
+ mlx5_mpfs_cleanup(dev);
+err_rl_cleanup:
mlx5_cleanup_rl_table(dev);
-
err_tables_cleanup:
mlx5_cleanup_mkey_table(dev);
mlx5_cleanup_srq_table(dev);
#ifdef CONFIG_MLX5_CORE_EN
mlx5_eswitch_cleanup(dev->priv.eswitch);
#endif
+ mlx5_mpfs_cleanup(dev);
mlx5_cleanup_rl_table(dev);
mlx5_cleanup_reserved_gids(dev);
mlx5_cleanup_mkey_table(dev);
goto err_fs;
}
-#ifdef CONFIG_MLX5_CORE_EN
- mlx5_eswitch_attach(dev->priv.eswitch);
-#endif
-
err = mlx5_sriov_attach(dev);
if (err) {
dev_err(&pdev->dev, "sriov init failed %d\n", err);
mlx5_sriov_detach(dev);
err_sriov:
-#ifdef CONFIG_MLX5_CORE_EN
- mlx5_eswitch_detach(dev->priv.eswitch);
-#endif
mlx5_cleanup_fs(dev);
err_fs:
mlx5_fpga_device_stop(dev);
mlx5_sriov_detach(dev);
-#ifdef CONFIG_MLX5_CORE_EN
- mlx5_eswitch_detach(dev->priv.eswitch);
-#endif
mlx5_cleanup_fs(dev);
mlx5_irq_clear_affinity_hints(dev);
free_comp_eqs(dev);
unsigned long sampling_interval; /* jiffies */
};
+struct mlx5_mpfs;
struct mlx5_eswitch;
struct mlx5_lag;
struct mlx5_pagefault;
spinlock_t ctx_lock;
struct mlx5_flow_steering *steering;
+ struct mlx5_mpfs *mpfs;
struct mlx5_eswitch *eswitch;
struct mlx5_core_sriov sriov;
struct mlx5_lag *lag;
projects / kernel.git / commitdiff